Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1 | // Amalgamated source file |
| 2 | #include "upb.h" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3 | |
| 4 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5 | #include <ctype.h> |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6 | #include <stdlib.h> |
| 7 | #include <string.h> |
| 8 | |
| 9 | typedef struct { |
| 10 | size_t len; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11 | char str[1]; /* Null-terminated string data follows. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12 | } str_t; |
| 13 | |
| 14 | static str_t *newstr(const char *data, size_t len) { |
| 15 | str_t *ret = malloc(sizeof(*ret) + len); |
| 16 | if (!ret) return NULL; |
| 17 | ret->len = len; |
| 18 | memcpy(ret->str, data, len); |
| 19 | ret->str[len] = '\0'; |
| 20 | return ret; |
| 21 | } |
| 22 | |
| 23 | static void freestr(str_t *s) { free(s); } |
| 24 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 25 | /* isalpha() etc. from <ctype.h> are locale-dependent, which we don't want. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 26 | static bool upb_isbetween(char c, char low, char high) { |
| 27 | return c >= low && c <= high; |
| 28 | } |
| 29 | |
| 30 | static bool upb_isletter(char c) { |
| 31 | return upb_isbetween(c, 'A', 'Z') || upb_isbetween(c, 'a', 'z') || c == '_'; |
| 32 | } |
| 33 | |
| 34 | static bool upb_isalphanum(char c) { |
| 35 | return upb_isletter(c) || upb_isbetween(c, '0', '9'); |
| 36 | } |
| 37 | |
| 38 | static bool upb_isident(const char *str, size_t len, bool full, upb_status *s) { |
| 39 | bool start = true; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 40 | size_t i; |
| 41 | for (i = 0; i < len; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 42 | char c = str[i]; |
| 43 | if (c == '.') { |
| 44 | if (start || !full) { |
| 45 | upb_status_seterrf(s, "invalid name: unexpected '.' (%s)", str); |
| 46 | return false; |
| 47 | } |
| 48 | start = true; |
| 49 | } else if (start) { |
| 50 | if (!upb_isletter(c)) { |
| 51 | upb_status_seterrf( |
| 52 | s, "invalid name: path components must start with a letter (%s)", |
| 53 | str); |
| 54 | return false; |
| 55 | } |
| 56 | start = false; |
| 57 | } else { |
| 58 | if (!upb_isalphanum(c)) { |
| 59 | upb_status_seterrf(s, "invalid name: non-alphanumeric character (%s)", |
| 60 | str); |
| 61 | return false; |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | return !start; |
| 66 | } |
| 67 | |
| 68 | |
| 69 | /* upb_def ********************************************************************/ |
| 70 | |
| 71 | upb_deftype_t upb_def_type(const upb_def *d) { return d->type; } |
| 72 | |
| 73 | const char *upb_def_fullname(const upb_def *d) { return d->fullname; } |
| 74 | |
| 75 | bool upb_def_setfullname(upb_def *def, const char *fullname, upb_status *s) { |
| 76 | assert(!upb_def_isfrozen(def)); |
| 77 | if (!upb_isident(fullname, strlen(fullname), true, s)) return false; |
| 78 | free((void*)def->fullname); |
| 79 | def->fullname = upb_strdup(fullname); |
| 80 | return true; |
| 81 | } |
| 82 | |
| 83 | upb_def *upb_def_dup(const upb_def *def, const void *o) { |
| 84 | switch (def->type) { |
| 85 | case UPB_DEF_MSG: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 86 | return upb_msgdef_upcast_mutable( |
| 87 | upb_msgdef_dup(upb_downcast_msgdef(def), o)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 88 | case UPB_DEF_FIELD: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 89 | return upb_fielddef_upcast_mutable( |
| 90 | upb_fielddef_dup(upb_downcast_fielddef(def), o)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 91 | case UPB_DEF_ENUM: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 92 | return upb_enumdef_upcast_mutable( |
| 93 | upb_enumdef_dup(upb_downcast_enumdef(def), o)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 94 | default: assert(false); return NULL; |
| 95 | } |
| 96 | } |
| 97 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 98 | static bool upb_def_init(upb_def *def, upb_deftype_t type, |
| 99 | const struct upb_refcounted_vtbl *vtbl, |
| 100 | const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 101 | if (!upb_refcounted_init(upb_def_upcast_mutable(def), vtbl, owner)) return false; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 102 | def->type = type; |
| 103 | def->fullname = NULL; |
| 104 | def->came_from_user = false; |
| 105 | return true; |
| 106 | } |
| 107 | |
| 108 | static void upb_def_uninit(upb_def *def) { |
| 109 | free((void*)def->fullname); |
| 110 | } |
| 111 | |
| 112 | static const char *msgdef_name(const upb_msgdef *m) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 113 | const char *name = upb_def_fullname(upb_msgdef_upcast(m)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 114 | return name ? name : "(anonymous)"; |
| 115 | } |
| 116 | |
| 117 | static bool upb_validate_field(upb_fielddef *f, upb_status *s) { |
| 118 | if (upb_fielddef_name(f) == NULL || upb_fielddef_number(f) == 0) { |
| 119 | upb_status_seterrmsg(s, "fielddef must have name and number set"); |
| 120 | return false; |
| 121 | } |
| 122 | |
| 123 | if (!f->type_is_set_) { |
| 124 | upb_status_seterrmsg(s, "fielddef type was not initialized"); |
| 125 | return false; |
| 126 | } |
| 127 | |
| 128 | if (upb_fielddef_lazy(f) && |
| 129 | upb_fielddef_descriptortype(f) != UPB_DESCRIPTOR_TYPE_MESSAGE) { |
| 130 | upb_status_seterrmsg(s, |
| 131 | "only length-delimited submessage fields may be lazy"); |
| 132 | return false; |
| 133 | } |
| 134 | |
| 135 | if (upb_fielddef_hassubdef(f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 136 | const upb_def *subdef; |
| 137 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 138 | if (f->subdef_is_symbolic) { |
| 139 | upb_status_seterrf(s, "field '%s.%s' has not been resolved", |
| 140 | msgdef_name(f->msg.def), upb_fielddef_name(f)); |
| 141 | return false; |
| 142 | } |
| 143 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 144 | subdef = upb_fielddef_subdef(f); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 145 | if (subdef == NULL) { |
| 146 | upb_status_seterrf(s, "field %s.%s is missing required subdef", |
| 147 | msgdef_name(f->msg.def), upb_fielddef_name(f)); |
| 148 | return false; |
| 149 | } |
| 150 | |
| 151 | if (!upb_def_isfrozen(subdef) && !subdef->came_from_user) { |
| 152 | upb_status_seterrf(s, |
| 153 | "subdef of field %s.%s is not frozen or being frozen", |
| 154 | msgdef_name(f->msg.def), upb_fielddef_name(f)); |
| 155 | return false; |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | if (upb_fielddef_type(f) == UPB_TYPE_ENUM) { |
| 160 | bool has_default_name = upb_fielddef_enumhasdefaultstr(f); |
| 161 | bool has_default_number = upb_fielddef_enumhasdefaultint32(f); |
| 162 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 163 | /* Previously verified by upb_validate_enumdef(). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 164 | assert(upb_enumdef_numvals(upb_fielddef_enumsubdef(f)) > 0); |
| 165 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 166 | /* We've already validated that we have an associated enumdef and that it |
| 167 | * has at least one member, so at least one of these should be true. |
| 168 | * Because if the user didn't set anything, we'll pick up the enum's |
| 169 | * default, but if the user *did* set something we should at least pick up |
| 170 | * the one they set (int32 or string). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 171 | assert(has_default_name || has_default_number); |
| 172 | |
| 173 | if (!has_default_name) { |
| 174 | upb_status_seterrf(s, |
| 175 | "enum default for field %s.%s (%d) is not in the enum", |
| 176 | msgdef_name(f->msg.def), upb_fielddef_name(f), |
| 177 | upb_fielddef_defaultint32(f)); |
| 178 | return false; |
| 179 | } |
| 180 | |
| 181 | if (!has_default_number) { |
| 182 | upb_status_seterrf(s, |
| 183 | "enum default for field %s.%s (%s) is not in the enum", |
| 184 | msgdef_name(f->msg.def), upb_fielddef_name(f), |
| 185 | upb_fielddef_defaultstr(f, NULL)); |
| 186 | return false; |
| 187 | } |
| 188 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 189 | /* Lift the effective numeric default into the field's default slot, in case |
| 190 | * we were only getting it "by reference" from the enumdef. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 191 | upb_fielddef_setdefaultint32(f, upb_fielddef_defaultint32(f)); |
| 192 | } |
| 193 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 194 | /* Ensure that MapEntry submessages only appear as repeated fields, not |
| 195 | * optional/required (singular) fields. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 196 | if (upb_fielddef_type(f) == UPB_TYPE_MESSAGE && |
| 197 | upb_fielddef_msgsubdef(f) != NULL) { |
| 198 | const upb_msgdef *subdef = upb_fielddef_msgsubdef(f); |
| 199 | if (upb_msgdef_mapentry(subdef) && !upb_fielddef_isseq(f)) { |
| 200 | upb_status_seterrf(s, |
| 201 | "Field %s refers to mapentry message but is not " |
| 202 | "a repeated field", |
| 203 | upb_fielddef_name(f) ? upb_fielddef_name(f) : |
| 204 | "(unnamed)"); |
| 205 | return false; |
| 206 | } |
| 207 | } |
| 208 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 209 | return true; |
| 210 | } |
| 211 | |
| 212 | static bool upb_validate_enumdef(const upb_enumdef *e, upb_status *s) { |
| 213 | if (upb_enumdef_numvals(e) == 0) { |
| 214 | upb_status_seterrf(s, "enum %s has no members (must have at least one)", |
| 215 | upb_enumdef_fullname(e)); |
| 216 | return false; |
| 217 | } |
| 218 | |
| 219 | return true; |
| 220 | } |
| 221 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 222 | /* All submessage fields are lower than all other fields. |
| 223 | * Secondly, fields are increasing in order. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 224 | uint32_t field_rank(const upb_fielddef *f) { |
| 225 | uint32_t ret = upb_fielddef_number(f); |
| 226 | const uint32_t high_bit = 1 << 30; |
| 227 | assert(ret < high_bit); |
| 228 | if (!upb_fielddef_issubmsg(f)) |
| 229 | ret |= high_bit; |
| 230 | return ret; |
| 231 | } |
| 232 | |
| 233 | int cmp_fields(const void *p1, const void *p2) { |
| 234 | const upb_fielddef *f1 = *(upb_fielddef*const*)p1; |
| 235 | const upb_fielddef *f2 = *(upb_fielddef*const*)p2; |
| 236 | return field_rank(f1) - field_rank(f2); |
| 237 | } |
| 238 | |
| 239 | static bool assign_msg_indices(upb_msgdef *m, upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 240 | /* Sort fields. upb internally relies on UPB_TYPE_MESSAGE fields having the |
| 241 | * lowest indexes, but we do not publicly guarantee this. */ |
| 242 | upb_msg_field_iter j; |
| 243 | int i; |
| 244 | uint32_t selector; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 245 | int n = upb_msgdef_numfields(m); |
| 246 | upb_fielddef **fields = malloc(n * sizeof(*fields)); |
| 247 | if (!fields) return false; |
| 248 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 249 | m->submsg_field_count = 0; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 250 | for(i = 0, upb_msg_field_begin(&j, m); |
| 251 | !upb_msg_field_done(&j); |
| 252 | upb_msg_field_next(&j), i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 253 | upb_fielddef *f = upb_msg_iter_field(&j); |
| 254 | assert(f->msg.def == m); |
| 255 | if (!upb_validate_field(f, s)) { |
| 256 | free(fields); |
| 257 | return false; |
| 258 | } |
| 259 | if (upb_fielddef_issubmsg(f)) { |
| 260 | m->submsg_field_count++; |
| 261 | } |
| 262 | fields[i] = f; |
| 263 | } |
| 264 | |
| 265 | qsort(fields, n, sizeof(*fields), cmp_fields); |
| 266 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 267 | selector = UPB_STATIC_SELECTOR_COUNT + m->submsg_field_count; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 268 | for (i = 0; i < n; i++) { |
| 269 | upb_fielddef *f = fields[i]; |
| 270 | f->index_ = i; |
| 271 | f->selector_base = selector + upb_handlers_selectorbaseoffset(f); |
| 272 | selector += upb_handlers_selectorcount(f); |
| 273 | } |
| 274 | m->selector_count = selector; |
| 275 | |
| 276 | #ifndef NDEBUG |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 277 | { |
| 278 | /* Verify that all selectors for the message are distinct. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 279 | #define TRY(type) \ |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 280 | if (upb_handlers_getselector(f, type, &sel)) upb_inttable_insert(&t, sel, v); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 281 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 282 | upb_inttable t; |
| 283 | upb_value v; |
| 284 | upb_selector_t sel; |
| 285 | |
| 286 | upb_inttable_init(&t, UPB_CTYPE_BOOL); |
| 287 | v = upb_value_bool(true); |
| 288 | upb_inttable_insert(&t, UPB_STARTMSG_SELECTOR, v); |
| 289 | upb_inttable_insert(&t, UPB_ENDMSG_SELECTOR, v); |
| 290 | for(upb_msg_field_begin(&j, m); |
| 291 | !upb_msg_field_done(&j); |
| 292 | upb_msg_field_next(&j)) { |
| 293 | upb_fielddef *f = upb_msg_iter_field(&j); |
| 294 | /* These calls will assert-fail in upb_table if the value already |
| 295 | * exists. */ |
| 296 | TRY(UPB_HANDLER_INT32); |
| 297 | TRY(UPB_HANDLER_INT64) |
| 298 | TRY(UPB_HANDLER_UINT32) |
| 299 | TRY(UPB_HANDLER_UINT64) |
| 300 | TRY(UPB_HANDLER_FLOAT) |
| 301 | TRY(UPB_HANDLER_DOUBLE) |
| 302 | TRY(UPB_HANDLER_BOOL) |
| 303 | TRY(UPB_HANDLER_STARTSTR) |
| 304 | TRY(UPB_HANDLER_STRING) |
| 305 | TRY(UPB_HANDLER_ENDSTR) |
| 306 | TRY(UPB_HANDLER_STARTSUBMSG) |
| 307 | TRY(UPB_HANDLER_ENDSUBMSG) |
| 308 | TRY(UPB_HANDLER_STARTSEQ) |
| 309 | TRY(UPB_HANDLER_ENDSEQ) |
| 310 | } |
| 311 | upb_inttable_uninit(&t); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 312 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 313 | #undef TRY |
| 314 | #endif |
| 315 | |
| 316 | free(fields); |
| 317 | return true; |
| 318 | } |
| 319 | |
| 320 | bool upb_def_freeze(upb_def *const* defs, int n, upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 321 | int i; |
| 322 | int maxdepth; |
| 323 | bool ret; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 324 | upb_status_clear(s); |
| 325 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 326 | /* First perform validation, in two passes so we can check that we have a |
| 327 | * transitive closure without needing to search. */ |
| 328 | for (i = 0; i < n; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 329 | upb_def *def = defs[i]; |
| 330 | if (upb_def_isfrozen(def)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 331 | /* Could relax this requirement if it's annoying. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 332 | upb_status_seterrmsg(s, "def is already frozen"); |
| 333 | goto err; |
| 334 | } else if (def->type == UPB_DEF_FIELD) { |
| 335 | upb_status_seterrmsg(s, "standalone fielddefs can not be frozen"); |
| 336 | goto err; |
| 337 | } else if (def->type == UPB_DEF_ENUM) { |
| 338 | if (!upb_validate_enumdef(upb_dyncast_enumdef(def), s)) { |
| 339 | goto err; |
| 340 | } |
| 341 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 342 | /* Set now to detect transitive closure in the second pass. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 343 | def->came_from_user = true; |
| 344 | } |
| 345 | } |
| 346 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 347 | /* Second pass of validation. Also assign selector bases and indexes, and |
| 348 | * compact tables. */ |
| 349 | for (i = 0; i < n; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 350 | upb_msgdef *m = upb_dyncast_msgdef_mutable(defs[i]); |
| 351 | upb_enumdef *e = upb_dyncast_enumdef_mutable(defs[i]); |
| 352 | if (m) { |
| 353 | upb_inttable_compact(&m->itof); |
| 354 | if (!assign_msg_indices(m, s)) { |
| 355 | goto err; |
| 356 | } |
| 357 | } else if (e) { |
| 358 | upb_inttable_compact(&e->iton); |
| 359 | } |
| 360 | } |
| 361 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 362 | /* Def graph contains FieldDefs between each MessageDef, so double the |
| 363 | * limit. */ |
| 364 | maxdepth = UPB_MAX_MESSAGE_DEPTH * 2; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 365 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 366 | /* Validation all passed; freeze the defs. */ |
| 367 | ret = upb_refcounted_freeze((upb_refcounted * const *)defs, n, s, maxdepth); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 368 | assert(!(s && ret != upb_ok(s))); |
| 369 | return ret; |
| 370 | |
| 371 | err: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 372 | for (i = 0; i < n; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 373 | defs[i]->came_from_user = false; |
| 374 | } |
| 375 | assert(!(s && upb_ok(s))); |
| 376 | return false; |
| 377 | } |
| 378 | |
| 379 | |
| 380 | /* upb_enumdef ****************************************************************/ |
| 381 | |
| 382 | static void upb_enumdef_free(upb_refcounted *r) { |
| 383 | upb_enumdef *e = (upb_enumdef*)r; |
| 384 | upb_inttable_iter i; |
| 385 | upb_inttable_begin(&i, &e->iton); |
| 386 | for( ; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 387 | /* To clean up the upb_strdup() from upb_enumdef_addval(). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 388 | free(upb_value_getcstr(upb_inttable_iter_value(&i))); |
| 389 | } |
| 390 | upb_strtable_uninit(&e->ntoi); |
| 391 | upb_inttable_uninit(&e->iton); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 392 | upb_def_uninit(upb_enumdef_upcast_mutable(e)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 393 | free(e); |
| 394 | } |
| 395 | |
| 396 | upb_enumdef *upb_enumdef_new(const void *owner) { |
| 397 | static const struct upb_refcounted_vtbl vtbl = {NULL, &upb_enumdef_free}; |
| 398 | upb_enumdef *e = malloc(sizeof(*e)); |
| 399 | if (!e) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 400 | if (!upb_def_init(upb_enumdef_upcast_mutable(e), UPB_DEF_ENUM, &vtbl, owner)) |
| 401 | goto err2; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 402 | if (!upb_strtable_init(&e->ntoi, UPB_CTYPE_INT32)) goto err2; |
| 403 | if (!upb_inttable_init(&e->iton, UPB_CTYPE_CSTR)) goto err1; |
| 404 | return e; |
| 405 | |
| 406 | err1: |
| 407 | upb_strtable_uninit(&e->ntoi); |
| 408 | err2: |
| 409 | free(e); |
| 410 | return NULL; |
| 411 | } |
| 412 | |
| 413 | upb_enumdef *upb_enumdef_dup(const upb_enumdef *e, const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 414 | upb_enum_iter i; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 415 | upb_enumdef *new_e = upb_enumdef_new(owner); |
| 416 | if (!new_e) return NULL; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 417 | for(upb_enum_begin(&i, e); !upb_enum_done(&i); upb_enum_next(&i)) { |
| 418 | bool success = upb_enumdef_addval( |
| 419 | new_e, upb_enum_iter_name(&i),upb_enum_iter_number(&i), NULL); |
| 420 | if (!success) { |
| 421 | upb_enumdef_unref(new_e, owner); |
| 422 | return NULL; |
| 423 | } |
| 424 | } |
| 425 | return new_e; |
| 426 | } |
| 427 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 428 | bool upb_enumdef_freeze(upb_enumdef *e, upb_status *status) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 429 | upb_def *d = upb_enumdef_upcast_mutable(e); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 430 | return upb_def_freeze(&d, 1, status); |
| 431 | } |
| 432 | |
| 433 | const char *upb_enumdef_fullname(const upb_enumdef *e) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 434 | return upb_def_fullname(upb_enumdef_upcast(e)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 435 | } |
| 436 | |
| 437 | bool upb_enumdef_setfullname(upb_enumdef *e, const char *fullname, |
| 438 | upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 439 | return upb_def_setfullname(upb_enumdef_upcast_mutable(e), fullname, s); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 440 | } |
| 441 | |
| 442 | bool upb_enumdef_addval(upb_enumdef *e, const char *name, int32_t num, |
| 443 | upb_status *status) { |
| 444 | if (!upb_isident(name, strlen(name), false, status)) { |
| 445 | return false; |
| 446 | } |
| 447 | if (upb_enumdef_ntoiz(e, name, NULL)) { |
| 448 | upb_status_seterrf(status, "name '%s' is already defined", name); |
| 449 | return false; |
| 450 | } |
| 451 | if (!upb_strtable_insert(&e->ntoi, name, upb_value_int32(num))) { |
| 452 | upb_status_seterrmsg(status, "out of memory"); |
| 453 | return false; |
| 454 | } |
| 455 | if (!upb_inttable_lookup(&e->iton, num, NULL) && |
| 456 | !upb_inttable_insert(&e->iton, num, upb_value_cstr(upb_strdup(name)))) { |
| 457 | upb_status_seterrmsg(status, "out of memory"); |
| 458 | upb_strtable_remove(&e->ntoi, name, NULL); |
| 459 | return false; |
| 460 | } |
| 461 | if (upb_enumdef_numvals(e) == 1) { |
| 462 | bool ok = upb_enumdef_setdefault(e, num, NULL); |
| 463 | UPB_ASSERT_VAR(ok, ok); |
| 464 | } |
| 465 | return true; |
| 466 | } |
| 467 | |
| 468 | int32_t upb_enumdef_default(const upb_enumdef *e) { |
| 469 | assert(upb_enumdef_iton(e, e->defaultval)); |
| 470 | return e->defaultval; |
| 471 | } |
| 472 | |
| 473 | bool upb_enumdef_setdefault(upb_enumdef *e, int32_t val, upb_status *s) { |
| 474 | assert(!upb_enumdef_isfrozen(e)); |
| 475 | if (!upb_enumdef_iton(e, val)) { |
| 476 | upb_status_seterrf(s, "number '%d' is not in the enum.", val); |
| 477 | return false; |
| 478 | } |
| 479 | e->defaultval = val; |
| 480 | return true; |
| 481 | } |
| 482 | |
| 483 | int upb_enumdef_numvals(const upb_enumdef *e) { |
| 484 | return upb_strtable_count(&e->ntoi); |
| 485 | } |
| 486 | |
| 487 | void upb_enum_begin(upb_enum_iter *i, const upb_enumdef *e) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 488 | /* We iterate over the ntoi table, to account for duplicate numbers. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 489 | upb_strtable_begin(i, &e->ntoi); |
| 490 | } |
| 491 | |
| 492 | void upb_enum_next(upb_enum_iter *iter) { upb_strtable_next(iter); } |
| 493 | bool upb_enum_done(upb_enum_iter *iter) { return upb_strtable_done(iter); } |
| 494 | |
| 495 | bool upb_enumdef_ntoi(const upb_enumdef *def, const char *name, |
| 496 | size_t len, int32_t *num) { |
| 497 | upb_value v; |
| 498 | if (!upb_strtable_lookup2(&def->ntoi, name, len, &v)) { |
| 499 | return false; |
| 500 | } |
| 501 | if (num) *num = upb_value_getint32(v); |
| 502 | return true; |
| 503 | } |
| 504 | |
| 505 | const char *upb_enumdef_iton(const upb_enumdef *def, int32_t num) { |
| 506 | upb_value v; |
| 507 | return upb_inttable_lookup32(&def->iton, num, &v) ? |
| 508 | upb_value_getcstr(v) : NULL; |
| 509 | } |
| 510 | |
| 511 | const char *upb_enum_iter_name(upb_enum_iter *iter) { |
| 512 | return upb_strtable_iter_key(iter); |
| 513 | } |
| 514 | |
| 515 | int32_t upb_enum_iter_number(upb_enum_iter *iter) { |
| 516 | return upb_value_getint32(upb_strtable_iter_value(iter)); |
| 517 | } |
| 518 | |
| 519 | |
| 520 | /* upb_fielddef ***************************************************************/ |
| 521 | |
| 522 | static void upb_fielddef_init_default(upb_fielddef *f); |
| 523 | |
| 524 | static void upb_fielddef_uninit_default(upb_fielddef *f) { |
| 525 | if (f->type_is_set_ && f->default_is_string && f->defaultval.bytes) |
| 526 | freestr(f->defaultval.bytes); |
| 527 | } |
| 528 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 529 | const char *upb_fielddef_fullname(const upb_fielddef *e) { |
| 530 | return upb_def_fullname(upb_fielddef_upcast(e)); |
| 531 | } |
| 532 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 533 | static void visitfield(const upb_refcounted *r, upb_refcounted_visit *visit, |
| 534 | void *closure) { |
| 535 | const upb_fielddef *f = (const upb_fielddef*)r; |
| 536 | if (upb_fielddef_containingtype(f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 537 | visit(r, upb_msgdef_upcast2(upb_fielddef_containingtype(f)), closure); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 538 | } |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 539 | if (upb_fielddef_containingoneof(f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 540 | visit(r, upb_oneofdef_upcast2(upb_fielddef_containingoneof(f)), closure); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 541 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 542 | if (upb_fielddef_subdef(f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 543 | visit(r, upb_def_upcast(upb_fielddef_subdef(f)), closure); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 544 | } |
| 545 | } |
| 546 | |
| 547 | static void freefield(upb_refcounted *r) { |
| 548 | upb_fielddef *f = (upb_fielddef*)r; |
| 549 | upb_fielddef_uninit_default(f); |
| 550 | if (f->subdef_is_symbolic) |
| 551 | free(f->sub.name); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 552 | upb_def_uninit(upb_fielddef_upcast_mutable(f)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 553 | free(f); |
| 554 | } |
| 555 | |
| 556 | static const char *enumdefaultstr(const upb_fielddef *f) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 557 | const upb_enumdef *e; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 558 | assert(f->type_is_set_ && f->type_ == UPB_TYPE_ENUM); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 559 | e = upb_fielddef_enumsubdef(f); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 560 | if (f->default_is_string && f->defaultval.bytes) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 561 | /* Default was explicitly set as a string. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 562 | str_t *s = f->defaultval.bytes; |
| 563 | return s->str; |
| 564 | } else if (e) { |
| 565 | if (!f->default_is_string) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 566 | /* Default was explicitly set as an integer; look it up in enumdef. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 567 | const char *name = upb_enumdef_iton(e, f->defaultval.sint); |
| 568 | if (name) { |
| 569 | return name; |
| 570 | } |
| 571 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 572 | /* Default is completely unset; pull enumdef default. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 573 | if (upb_enumdef_numvals(e) > 0) { |
| 574 | const char *name = upb_enumdef_iton(e, upb_enumdef_default(e)); |
| 575 | assert(name); |
| 576 | return name; |
| 577 | } |
| 578 | } |
| 579 | } |
| 580 | return NULL; |
| 581 | } |
| 582 | |
| 583 | static bool enumdefaultint32(const upb_fielddef *f, int32_t *val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 584 | const upb_enumdef *e; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 585 | assert(f->type_is_set_ && f->type_ == UPB_TYPE_ENUM); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 586 | e = upb_fielddef_enumsubdef(f); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 587 | if (!f->default_is_string) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 588 | /* Default was explicitly set as an integer. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 589 | *val = f->defaultval.sint; |
| 590 | return true; |
| 591 | } else if (e) { |
| 592 | if (f->defaultval.bytes) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 593 | /* Default was explicitly set as a str; try to lookup corresponding int. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 594 | str_t *s = f->defaultval.bytes; |
| 595 | if (upb_enumdef_ntoiz(e, s->str, val)) { |
| 596 | return true; |
| 597 | } |
| 598 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 599 | /* Default is unset; try to pull in enumdef default. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 600 | if (upb_enumdef_numvals(e) > 0) { |
| 601 | *val = upb_enumdef_default(e); |
| 602 | return true; |
| 603 | } |
| 604 | } |
| 605 | } |
| 606 | return false; |
| 607 | } |
| 608 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 609 | upb_fielddef *upb_fielddef_new(const void *o) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 610 | static const struct upb_refcounted_vtbl vtbl = {visitfield, freefield}; |
| 611 | upb_fielddef *f = malloc(sizeof(*f)); |
| 612 | if (!f) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 613 | if (!upb_def_init(upb_fielddef_upcast_mutable(f), UPB_DEF_FIELD, &vtbl, o)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 614 | free(f); |
| 615 | return NULL; |
| 616 | } |
| 617 | f->msg.def = NULL; |
| 618 | f->sub.def = NULL; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 619 | f->oneof = NULL; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 620 | f->subdef_is_symbolic = false; |
| 621 | f->msg_is_symbolic = false; |
| 622 | f->label_ = UPB_LABEL_OPTIONAL; |
| 623 | f->type_ = UPB_TYPE_INT32; |
| 624 | f->number_ = 0; |
| 625 | f->type_is_set_ = false; |
| 626 | f->tagdelim = false; |
| 627 | f->is_extension_ = false; |
| 628 | f->lazy_ = false; |
| 629 | f->packed_ = true; |
| 630 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 631 | /* For the moment we default this to UPB_INTFMT_VARIABLE, since it will work |
| 632 | * with all integer types and is in some since more "default" since the most |
| 633 | * normal-looking proto2 types int32/int64/uint32/uint64 use variable. |
| 634 | * |
| 635 | * Other options to consider: |
| 636 | * - there is no default; users must set this manually (like type). |
| 637 | * - default signed integers to UPB_INTFMT_ZIGZAG, since it's more likely to |
| 638 | * be an optimal default for signed integers. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 639 | f->intfmt = UPB_INTFMT_VARIABLE; |
| 640 | return f; |
| 641 | } |
| 642 | |
| 643 | upb_fielddef *upb_fielddef_dup(const upb_fielddef *f, const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 644 | const char *srcname; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 645 | upb_fielddef *newf = upb_fielddef_new(owner); |
| 646 | if (!newf) return NULL; |
| 647 | upb_fielddef_settype(newf, upb_fielddef_type(f)); |
| 648 | upb_fielddef_setlabel(newf, upb_fielddef_label(f)); |
| 649 | upb_fielddef_setnumber(newf, upb_fielddef_number(f), NULL); |
| 650 | upb_fielddef_setname(newf, upb_fielddef_name(f), NULL); |
| 651 | if (f->default_is_string && f->defaultval.bytes) { |
| 652 | str_t *s = f->defaultval.bytes; |
| 653 | upb_fielddef_setdefaultstr(newf, s->str, s->len, NULL); |
| 654 | } else { |
| 655 | newf->default_is_string = f->default_is_string; |
| 656 | newf->defaultval = f->defaultval; |
| 657 | } |
| 658 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 659 | if (f->subdef_is_symbolic) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 660 | srcname = f->sub.name; /* Might be NULL. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 661 | } else { |
| 662 | srcname = f->sub.def ? upb_def_fullname(f->sub.def) : NULL; |
| 663 | } |
| 664 | if (srcname) { |
| 665 | char *newname = malloc(strlen(f->sub.def->fullname) + 2); |
| 666 | if (!newname) { |
| 667 | upb_fielddef_unref(newf, owner); |
| 668 | return NULL; |
| 669 | } |
| 670 | strcpy(newname, "."); |
| 671 | strcat(newname, f->sub.def->fullname); |
| 672 | upb_fielddef_setsubdefname(newf, newname, NULL); |
| 673 | free(newname); |
| 674 | } |
| 675 | |
| 676 | return newf; |
| 677 | } |
| 678 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 679 | bool upb_fielddef_typeisset(const upb_fielddef *f) { |
| 680 | return f->type_is_set_; |
| 681 | } |
| 682 | |
| 683 | upb_fieldtype_t upb_fielddef_type(const upb_fielddef *f) { |
| 684 | assert(f->type_is_set_); |
| 685 | return f->type_; |
| 686 | } |
| 687 | |
| 688 | uint32_t upb_fielddef_index(const upb_fielddef *f) { |
| 689 | return f->index_; |
| 690 | } |
| 691 | |
| 692 | upb_label_t upb_fielddef_label(const upb_fielddef *f) { |
| 693 | return f->label_; |
| 694 | } |
| 695 | |
| 696 | upb_intfmt_t upb_fielddef_intfmt(const upb_fielddef *f) { |
| 697 | return f->intfmt; |
| 698 | } |
| 699 | |
| 700 | bool upb_fielddef_istagdelim(const upb_fielddef *f) { |
| 701 | return f->tagdelim; |
| 702 | } |
| 703 | |
| 704 | uint32_t upb_fielddef_number(const upb_fielddef *f) { |
| 705 | return f->number_; |
| 706 | } |
| 707 | |
| 708 | bool upb_fielddef_isextension(const upb_fielddef *f) { |
| 709 | return f->is_extension_; |
| 710 | } |
| 711 | |
| 712 | bool upb_fielddef_lazy(const upb_fielddef *f) { |
| 713 | return f->lazy_; |
| 714 | } |
| 715 | |
| 716 | bool upb_fielddef_packed(const upb_fielddef *f) { |
| 717 | return f->packed_; |
| 718 | } |
| 719 | |
| 720 | const char *upb_fielddef_name(const upb_fielddef *f) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 721 | return upb_def_fullname(upb_fielddef_upcast(f)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 722 | } |
| 723 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 724 | size_t upb_fielddef_getjsonname(const upb_fielddef *f, char *buf, size_t len) { |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 725 | const char *name = upb_fielddef_name(f); |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 726 | size_t src, dst = 0; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 727 | bool ucase_next = false; |
| 728 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 729 | #define WRITE(byte) \ |
| 730 | ++dst; \ |
| 731 | if (dst < len) buf[dst - 1] = byte; \ |
| 732 | else if (dst == len) buf[dst - 1] = '\0' |
| 733 | |
| 734 | if (!name) { |
| 735 | WRITE('\0'); |
| 736 | return 0; |
| 737 | } |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 738 | |
| 739 | /* Implement the transformation as described in the spec: |
| 740 | * 1. upper case all letters after an underscore. |
| 741 | * 2. remove all underscores. |
| 742 | */ |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 743 | for (src = 0; name[src]; src++) { |
| 744 | if (name[src] == '_') { |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 745 | ucase_next = true; |
| 746 | continue; |
| 747 | } |
| 748 | |
| 749 | if (ucase_next) { |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 750 | WRITE(toupper(name[src])); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 751 | ucase_next = false; |
| 752 | } else { |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 753 | WRITE(name[src]); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 754 | } |
| 755 | } |
| 756 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 757 | WRITE('\0'); |
| 758 | return dst; |
| 759 | |
| 760 | #undef WRITE |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 761 | } |
| 762 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 763 | const upb_msgdef *upb_fielddef_containingtype(const upb_fielddef *f) { |
| 764 | return f->msg_is_symbolic ? NULL : f->msg.def; |
| 765 | } |
| 766 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 767 | const upb_oneofdef *upb_fielddef_containingoneof(const upb_fielddef *f) { |
| 768 | return f->oneof; |
| 769 | } |
| 770 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 771 | upb_msgdef *upb_fielddef_containingtype_mutable(upb_fielddef *f) { |
| 772 | return (upb_msgdef*)upb_fielddef_containingtype(f); |
| 773 | } |
| 774 | |
| 775 | const char *upb_fielddef_containingtypename(upb_fielddef *f) { |
| 776 | return f->msg_is_symbolic ? f->msg.name : NULL; |
| 777 | } |
| 778 | |
| 779 | static void release_containingtype(upb_fielddef *f) { |
| 780 | if (f->msg_is_symbolic) free(f->msg.name); |
| 781 | } |
| 782 | |
| 783 | bool upb_fielddef_setcontainingtypename(upb_fielddef *f, const char *name, |
| 784 | upb_status *s) { |
| 785 | assert(!upb_fielddef_isfrozen(f)); |
| 786 | if (upb_fielddef_containingtype(f)) { |
| 787 | upb_status_seterrmsg(s, "field has already been added to a message."); |
| 788 | return false; |
| 789 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 790 | /* TODO: validate name (upb_isident() doesn't quite work atm because this name |
| 791 | * may have a leading "."). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 792 | release_containingtype(f); |
| 793 | f->msg.name = upb_strdup(name); |
| 794 | f->msg_is_symbolic = true; |
| 795 | return true; |
| 796 | } |
| 797 | |
| 798 | bool upb_fielddef_setname(upb_fielddef *f, const char *name, upb_status *s) { |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 799 | if (upb_fielddef_containingtype(f) || upb_fielddef_containingoneof(f)) { |
| 800 | upb_status_seterrmsg(s, "Already added to message or oneof"); |
| 801 | return false; |
| 802 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 803 | return upb_def_setfullname(upb_fielddef_upcast_mutable(f), name, s); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 804 | } |
| 805 | |
| 806 | static void chkdefaulttype(const upb_fielddef *f, upb_fieldtype_t type) { |
| 807 | UPB_UNUSED(f); |
| 808 | UPB_UNUSED(type); |
| 809 | assert(f->type_is_set_ && upb_fielddef_type(f) == type); |
| 810 | } |
| 811 | |
| 812 | int64_t upb_fielddef_defaultint64(const upb_fielddef *f) { |
| 813 | chkdefaulttype(f, UPB_TYPE_INT64); |
| 814 | return f->defaultval.sint; |
| 815 | } |
| 816 | |
| 817 | int32_t upb_fielddef_defaultint32(const upb_fielddef *f) { |
| 818 | if (f->type_is_set_ && upb_fielddef_type(f) == UPB_TYPE_ENUM) { |
| 819 | int32_t val; |
| 820 | bool ok = enumdefaultint32(f, &val); |
| 821 | UPB_ASSERT_VAR(ok, ok); |
| 822 | return val; |
| 823 | } else { |
| 824 | chkdefaulttype(f, UPB_TYPE_INT32); |
| 825 | return f->defaultval.sint; |
| 826 | } |
| 827 | } |
| 828 | |
| 829 | uint64_t upb_fielddef_defaultuint64(const upb_fielddef *f) { |
| 830 | chkdefaulttype(f, UPB_TYPE_UINT64); |
| 831 | return f->defaultval.uint; |
| 832 | } |
| 833 | |
| 834 | uint32_t upb_fielddef_defaultuint32(const upb_fielddef *f) { |
| 835 | chkdefaulttype(f, UPB_TYPE_UINT32); |
| 836 | return f->defaultval.uint; |
| 837 | } |
| 838 | |
| 839 | bool upb_fielddef_defaultbool(const upb_fielddef *f) { |
| 840 | chkdefaulttype(f, UPB_TYPE_BOOL); |
| 841 | return f->defaultval.uint; |
| 842 | } |
| 843 | |
| 844 | float upb_fielddef_defaultfloat(const upb_fielddef *f) { |
| 845 | chkdefaulttype(f, UPB_TYPE_FLOAT); |
| 846 | return f->defaultval.flt; |
| 847 | } |
| 848 | |
| 849 | double upb_fielddef_defaultdouble(const upb_fielddef *f) { |
| 850 | chkdefaulttype(f, UPB_TYPE_DOUBLE); |
| 851 | return f->defaultval.dbl; |
| 852 | } |
| 853 | |
| 854 | const char *upb_fielddef_defaultstr(const upb_fielddef *f, size_t *len) { |
| 855 | assert(f->type_is_set_); |
| 856 | assert(upb_fielddef_type(f) == UPB_TYPE_STRING || |
| 857 | upb_fielddef_type(f) == UPB_TYPE_BYTES || |
| 858 | upb_fielddef_type(f) == UPB_TYPE_ENUM); |
| 859 | |
| 860 | if (upb_fielddef_type(f) == UPB_TYPE_ENUM) { |
| 861 | const char *ret = enumdefaultstr(f); |
| 862 | assert(ret); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 863 | /* Enum defaults can't have embedded NULLs. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 864 | if (len) *len = strlen(ret); |
| 865 | return ret; |
| 866 | } |
| 867 | |
| 868 | if (f->default_is_string) { |
| 869 | str_t *str = f->defaultval.bytes; |
| 870 | if (len) *len = str->len; |
| 871 | return str->str; |
| 872 | } |
| 873 | |
| 874 | return NULL; |
| 875 | } |
| 876 | |
| 877 | static void upb_fielddef_init_default(upb_fielddef *f) { |
| 878 | f->default_is_string = false; |
| 879 | switch (upb_fielddef_type(f)) { |
| 880 | case UPB_TYPE_DOUBLE: f->defaultval.dbl = 0; break; |
| 881 | case UPB_TYPE_FLOAT: f->defaultval.flt = 0; break; |
| 882 | case UPB_TYPE_INT32: |
| 883 | case UPB_TYPE_INT64: f->defaultval.sint = 0; break; |
| 884 | case UPB_TYPE_UINT64: |
| 885 | case UPB_TYPE_UINT32: |
| 886 | case UPB_TYPE_BOOL: f->defaultval.uint = 0; break; |
| 887 | case UPB_TYPE_STRING: |
| 888 | case UPB_TYPE_BYTES: |
| 889 | f->defaultval.bytes = newstr("", 0); |
| 890 | f->default_is_string = true; |
| 891 | break; |
| 892 | case UPB_TYPE_MESSAGE: break; |
| 893 | case UPB_TYPE_ENUM: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 894 | /* This is our special sentinel that indicates "not set" for an enum. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 895 | f->default_is_string = true; |
| 896 | f->defaultval.bytes = NULL; |
| 897 | break; |
| 898 | } |
| 899 | } |
| 900 | |
| 901 | const upb_def *upb_fielddef_subdef(const upb_fielddef *f) { |
| 902 | return f->subdef_is_symbolic ? NULL : f->sub.def; |
| 903 | } |
| 904 | |
| 905 | const upb_msgdef *upb_fielddef_msgsubdef(const upb_fielddef *f) { |
| 906 | const upb_def *def = upb_fielddef_subdef(f); |
| 907 | return def ? upb_dyncast_msgdef(def) : NULL; |
| 908 | } |
| 909 | |
| 910 | const upb_enumdef *upb_fielddef_enumsubdef(const upb_fielddef *f) { |
| 911 | const upb_def *def = upb_fielddef_subdef(f); |
| 912 | return def ? upb_dyncast_enumdef(def) : NULL; |
| 913 | } |
| 914 | |
| 915 | upb_def *upb_fielddef_subdef_mutable(upb_fielddef *f) { |
| 916 | return (upb_def*)upb_fielddef_subdef(f); |
| 917 | } |
| 918 | |
| 919 | const char *upb_fielddef_subdefname(const upb_fielddef *f) { |
| 920 | if (f->subdef_is_symbolic) { |
| 921 | return f->sub.name; |
| 922 | } else if (f->sub.def) { |
| 923 | return upb_def_fullname(f->sub.def); |
| 924 | } else { |
| 925 | return NULL; |
| 926 | } |
| 927 | } |
| 928 | |
| 929 | bool upb_fielddef_setnumber(upb_fielddef *f, uint32_t number, upb_status *s) { |
| 930 | if (upb_fielddef_containingtype(f)) { |
| 931 | upb_status_seterrmsg( |
| 932 | s, "cannot change field number after adding to a message"); |
| 933 | return false; |
| 934 | } |
| 935 | if (number == 0 || number > UPB_MAX_FIELDNUMBER) { |
| 936 | upb_status_seterrf(s, "invalid field number (%u)", number); |
| 937 | return false; |
| 938 | } |
| 939 | f->number_ = number; |
| 940 | return true; |
| 941 | } |
| 942 | |
| 943 | void upb_fielddef_settype(upb_fielddef *f, upb_fieldtype_t type) { |
| 944 | assert(!upb_fielddef_isfrozen(f)); |
| 945 | assert(upb_fielddef_checktype(type)); |
| 946 | upb_fielddef_uninit_default(f); |
| 947 | f->type_ = type; |
| 948 | f->type_is_set_ = true; |
| 949 | upb_fielddef_init_default(f); |
| 950 | } |
| 951 | |
| 952 | void upb_fielddef_setdescriptortype(upb_fielddef *f, int type) { |
| 953 | assert(!upb_fielddef_isfrozen(f)); |
| 954 | switch (type) { |
| 955 | case UPB_DESCRIPTOR_TYPE_DOUBLE: |
| 956 | upb_fielddef_settype(f, UPB_TYPE_DOUBLE); |
| 957 | break; |
| 958 | case UPB_DESCRIPTOR_TYPE_FLOAT: |
| 959 | upb_fielddef_settype(f, UPB_TYPE_FLOAT); |
| 960 | break; |
| 961 | case UPB_DESCRIPTOR_TYPE_INT64: |
| 962 | case UPB_DESCRIPTOR_TYPE_SFIXED64: |
| 963 | case UPB_DESCRIPTOR_TYPE_SINT64: |
| 964 | upb_fielddef_settype(f, UPB_TYPE_INT64); |
| 965 | break; |
| 966 | case UPB_DESCRIPTOR_TYPE_UINT64: |
| 967 | case UPB_DESCRIPTOR_TYPE_FIXED64: |
| 968 | upb_fielddef_settype(f, UPB_TYPE_UINT64); |
| 969 | break; |
| 970 | case UPB_DESCRIPTOR_TYPE_INT32: |
| 971 | case UPB_DESCRIPTOR_TYPE_SFIXED32: |
| 972 | case UPB_DESCRIPTOR_TYPE_SINT32: |
| 973 | upb_fielddef_settype(f, UPB_TYPE_INT32); |
| 974 | break; |
| 975 | case UPB_DESCRIPTOR_TYPE_UINT32: |
| 976 | case UPB_DESCRIPTOR_TYPE_FIXED32: |
| 977 | upb_fielddef_settype(f, UPB_TYPE_UINT32); |
| 978 | break; |
| 979 | case UPB_DESCRIPTOR_TYPE_BOOL: |
| 980 | upb_fielddef_settype(f, UPB_TYPE_BOOL); |
| 981 | break; |
| 982 | case UPB_DESCRIPTOR_TYPE_STRING: |
| 983 | upb_fielddef_settype(f, UPB_TYPE_STRING); |
| 984 | break; |
| 985 | case UPB_DESCRIPTOR_TYPE_BYTES: |
| 986 | upb_fielddef_settype(f, UPB_TYPE_BYTES); |
| 987 | break; |
| 988 | case UPB_DESCRIPTOR_TYPE_GROUP: |
| 989 | case UPB_DESCRIPTOR_TYPE_MESSAGE: |
| 990 | upb_fielddef_settype(f, UPB_TYPE_MESSAGE); |
| 991 | break; |
| 992 | case UPB_DESCRIPTOR_TYPE_ENUM: |
| 993 | upb_fielddef_settype(f, UPB_TYPE_ENUM); |
| 994 | break; |
| 995 | default: assert(false); |
| 996 | } |
| 997 | |
| 998 | if (type == UPB_DESCRIPTOR_TYPE_FIXED64 || |
| 999 | type == UPB_DESCRIPTOR_TYPE_FIXED32 || |
| 1000 | type == UPB_DESCRIPTOR_TYPE_SFIXED64 || |
| 1001 | type == UPB_DESCRIPTOR_TYPE_SFIXED32) { |
| 1002 | upb_fielddef_setintfmt(f, UPB_INTFMT_FIXED); |
| 1003 | } else if (type == UPB_DESCRIPTOR_TYPE_SINT64 || |
| 1004 | type == UPB_DESCRIPTOR_TYPE_SINT32) { |
| 1005 | upb_fielddef_setintfmt(f, UPB_INTFMT_ZIGZAG); |
| 1006 | } else { |
| 1007 | upb_fielddef_setintfmt(f, UPB_INTFMT_VARIABLE); |
| 1008 | } |
| 1009 | |
| 1010 | upb_fielddef_settagdelim(f, type == UPB_DESCRIPTOR_TYPE_GROUP); |
| 1011 | } |
| 1012 | |
| 1013 | upb_descriptortype_t upb_fielddef_descriptortype(const upb_fielddef *f) { |
| 1014 | switch (upb_fielddef_type(f)) { |
| 1015 | case UPB_TYPE_FLOAT: return UPB_DESCRIPTOR_TYPE_FLOAT; |
| 1016 | case UPB_TYPE_DOUBLE: return UPB_DESCRIPTOR_TYPE_DOUBLE; |
| 1017 | case UPB_TYPE_BOOL: return UPB_DESCRIPTOR_TYPE_BOOL; |
| 1018 | case UPB_TYPE_STRING: return UPB_DESCRIPTOR_TYPE_STRING; |
| 1019 | case UPB_TYPE_BYTES: return UPB_DESCRIPTOR_TYPE_BYTES; |
| 1020 | case UPB_TYPE_ENUM: return UPB_DESCRIPTOR_TYPE_ENUM; |
| 1021 | case UPB_TYPE_INT32: |
| 1022 | switch (upb_fielddef_intfmt(f)) { |
| 1023 | case UPB_INTFMT_VARIABLE: return UPB_DESCRIPTOR_TYPE_INT32; |
| 1024 | case UPB_INTFMT_FIXED: return UPB_DESCRIPTOR_TYPE_SFIXED32; |
| 1025 | case UPB_INTFMT_ZIGZAG: return UPB_DESCRIPTOR_TYPE_SINT32; |
| 1026 | } |
| 1027 | case UPB_TYPE_INT64: |
| 1028 | switch (upb_fielddef_intfmt(f)) { |
| 1029 | case UPB_INTFMT_VARIABLE: return UPB_DESCRIPTOR_TYPE_INT64; |
| 1030 | case UPB_INTFMT_FIXED: return UPB_DESCRIPTOR_TYPE_SFIXED64; |
| 1031 | case UPB_INTFMT_ZIGZAG: return UPB_DESCRIPTOR_TYPE_SINT64; |
| 1032 | } |
| 1033 | case UPB_TYPE_UINT32: |
| 1034 | switch (upb_fielddef_intfmt(f)) { |
| 1035 | case UPB_INTFMT_VARIABLE: return UPB_DESCRIPTOR_TYPE_UINT32; |
| 1036 | case UPB_INTFMT_FIXED: return UPB_DESCRIPTOR_TYPE_FIXED32; |
| 1037 | case UPB_INTFMT_ZIGZAG: return -1; |
| 1038 | } |
| 1039 | case UPB_TYPE_UINT64: |
| 1040 | switch (upb_fielddef_intfmt(f)) { |
| 1041 | case UPB_INTFMT_VARIABLE: return UPB_DESCRIPTOR_TYPE_UINT64; |
| 1042 | case UPB_INTFMT_FIXED: return UPB_DESCRIPTOR_TYPE_FIXED64; |
| 1043 | case UPB_INTFMT_ZIGZAG: return -1; |
| 1044 | } |
| 1045 | case UPB_TYPE_MESSAGE: |
| 1046 | return upb_fielddef_istagdelim(f) ? |
| 1047 | UPB_DESCRIPTOR_TYPE_GROUP : UPB_DESCRIPTOR_TYPE_MESSAGE; |
| 1048 | } |
| 1049 | return 0; |
| 1050 | } |
| 1051 | |
| 1052 | void upb_fielddef_setisextension(upb_fielddef *f, bool is_extension) { |
| 1053 | assert(!upb_fielddef_isfrozen(f)); |
| 1054 | f->is_extension_ = is_extension; |
| 1055 | } |
| 1056 | |
| 1057 | void upb_fielddef_setlazy(upb_fielddef *f, bool lazy) { |
| 1058 | assert(!upb_fielddef_isfrozen(f)); |
| 1059 | f->lazy_ = lazy; |
| 1060 | } |
| 1061 | |
| 1062 | void upb_fielddef_setpacked(upb_fielddef *f, bool packed) { |
| 1063 | assert(!upb_fielddef_isfrozen(f)); |
| 1064 | f->packed_ = packed; |
| 1065 | } |
| 1066 | |
| 1067 | void upb_fielddef_setlabel(upb_fielddef *f, upb_label_t label) { |
| 1068 | assert(!upb_fielddef_isfrozen(f)); |
| 1069 | assert(upb_fielddef_checklabel(label)); |
| 1070 | f->label_ = label; |
| 1071 | } |
| 1072 | |
| 1073 | void upb_fielddef_setintfmt(upb_fielddef *f, upb_intfmt_t fmt) { |
| 1074 | assert(!upb_fielddef_isfrozen(f)); |
| 1075 | assert(upb_fielddef_checkintfmt(fmt)); |
| 1076 | f->intfmt = fmt; |
| 1077 | } |
| 1078 | |
| 1079 | void upb_fielddef_settagdelim(upb_fielddef *f, bool tag_delim) { |
| 1080 | assert(!upb_fielddef_isfrozen(f)); |
| 1081 | f->tagdelim = tag_delim; |
| 1082 | f->tagdelim = tag_delim; |
| 1083 | } |
| 1084 | |
| 1085 | static bool checksetdefault(upb_fielddef *f, upb_fieldtype_t type) { |
| 1086 | if (!f->type_is_set_ || upb_fielddef_isfrozen(f) || |
| 1087 | upb_fielddef_type(f) != type) { |
| 1088 | assert(false); |
| 1089 | return false; |
| 1090 | } |
| 1091 | if (f->default_is_string) { |
| 1092 | str_t *s = f->defaultval.bytes; |
| 1093 | assert(s || type == UPB_TYPE_ENUM); |
| 1094 | if (s) freestr(s); |
| 1095 | } |
| 1096 | f->default_is_string = false; |
| 1097 | return true; |
| 1098 | } |
| 1099 | |
| 1100 | void upb_fielddef_setdefaultint64(upb_fielddef *f, int64_t value) { |
| 1101 | if (checksetdefault(f, UPB_TYPE_INT64)) |
| 1102 | f->defaultval.sint = value; |
| 1103 | } |
| 1104 | |
| 1105 | void upb_fielddef_setdefaultint32(upb_fielddef *f, int32_t value) { |
| 1106 | if ((upb_fielddef_type(f) == UPB_TYPE_ENUM && |
| 1107 | checksetdefault(f, UPB_TYPE_ENUM)) || |
| 1108 | checksetdefault(f, UPB_TYPE_INT32)) { |
| 1109 | f->defaultval.sint = value; |
| 1110 | } |
| 1111 | } |
| 1112 | |
| 1113 | void upb_fielddef_setdefaultuint64(upb_fielddef *f, uint64_t value) { |
| 1114 | if (checksetdefault(f, UPB_TYPE_UINT64)) |
| 1115 | f->defaultval.uint = value; |
| 1116 | } |
| 1117 | |
| 1118 | void upb_fielddef_setdefaultuint32(upb_fielddef *f, uint32_t value) { |
| 1119 | if (checksetdefault(f, UPB_TYPE_UINT32)) |
| 1120 | f->defaultval.uint = value; |
| 1121 | } |
| 1122 | |
| 1123 | void upb_fielddef_setdefaultbool(upb_fielddef *f, bool value) { |
| 1124 | if (checksetdefault(f, UPB_TYPE_BOOL)) |
| 1125 | f->defaultval.uint = value; |
| 1126 | } |
| 1127 | |
| 1128 | void upb_fielddef_setdefaultfloat(upb_fielddef *f, float value) { |
| 1129 | if (checksetdefault(f, UPB_TYPE_FLOAT)) |
| 1130 | f->defaultval.flt = value; |
| 1131 | } |
| 1132 | |
| 1133 | void upb_fielddef_setdefaultdouble(upb_fielddef *f, double value) { |
| 1134 | if (checksetdefault(f, UPB_TYPE_DOUBLE)) |
| 1135 | f->defaultval.dbl = value; |
| 1136 | } |
| 1137 | |
| 1138 | bool upb_fielddef_setdefaultstr(upb_fielddef *f, const void *str, size_t len, |
| 1139 | upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1140 | str_t *str2; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1141 | assert(upb_fielddef_isstring(f) || f->type_ == UPB_TYPE_ENUM); |
| 1142 | if (f->type_ == UPB_TYPE_ENUM && !upb_isident(str, len, false, s)) |
| 1143 | return false; |
| 1144 | |
| 1145 | if (f->default_is_string) { |
| 1146 | str_t *s = f->defaultval.bytes; |
| 1147 | assert(s || f->type_ == UPB_TYPE_ENUM); |
| 1148 | if (s) freestr(s); |
| 1149 | } else { |
| 1150 | assert(f->type_ == UPB_TYPE_ENUM); |
| 1151 | } |
| 1152 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1153 | str2 = newstr(str, len); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1154 | f->defaultval.bytes = str2; |
| 1155 | f->default_is_string = true; |
| 1156 | return true; |
| 1157 | } |
| 1158 | |
| 1159 | void upb_fielddef_setdefaultcstr(upb_fielddef *f, const char *str, |
| 1160 | upb_status *s) { |
| 1161 | assert(f->type_is_set_); |
| 1162 | upb_fielddef_setdefaultstr(f, str, str ? strlen(str) : 0, s); |
| 1163 | } |
| 1164 | |
| 1165 | bool upb_fielddef_enumhasdefaultint32(const upb_fielddef *f) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1166 | int32_t val; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1167 | assert(f->type_is_set_ && f->type_ == UPB_TYPE_ENUM); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1168 | return enumdefaultint32(f, &val); |
| 1169 | } |
| 1170 | |
| 1171 | bool upb_fielddef_enumhasdefaultstr(const upb_fielddef *f) { |
| 1172 | assert(f->type_is_set_ && f->type_ == UPB_TYPE_ENUM); |
| 1173 | return enumdefaultstr(f) != NULL; |
| 1174 | } |
| 1175 | |
| 1176 | static bool upb_subdef_typecheck(upb_fielddef *f, const upb_def *subdef, |
| 1177 | upb_status *s) { |
| 1178 | if (f->type_ == UPB_TYPE_MESSAGE) { |
| 1179 | if (upb_dyncast_msgdef(subdef)) return true; |
| 1180 | upb_status_seterrmsg(s, "invalid subdef type for this submessage field"); |
| 1181 | return false; |
| 1182 | } else if (f->type_ == UPB_TYPE_ENUM) { |
| 1183 | if (upb_dyncast_enumdef(subdef)) return true; |
| 1184 | upb_status_seterrmsg(s, "invalid subdef type for this enum field"); |
| 1185 | return false; |
| 1186 | } else { |
| 1187 | upb_status_seterrmsg(s, "only message and enum fields can have a subdef"); |
| 1188 | return false; |
| 1189 | } |
| 1190 | } |
| 1191 | |
| 1192 | static void release_subdef(upb_fielddef *f) { |
| 1193 | if (f->subdef_is_symbolic) { |
| 1194 | free(f->sub.name); |
| 1195 | } else if (f->sub.def) { |
| 1196 | upb_unref2(f->sub.def, f); |
| 1197 | } |
| 1198 | } |
| 1199 | |
| 1200 | bool upb_fielddef_setsubdef(upb_fielddef *f, const upb_def *subdef, |
| 1201 | upb_status *s) { |
| 1202 | assert(!upb_fielddef_isfrozen(f)); |
| 1203 | assert(upb_fielddef_hassubdef(f)); |
| 1204 | if (subdef && !upb_subdef_typecheck(f, subdef, s)) return false; |
| 1205 | release_subdef(f); |
| 1206 | f->sub.def = subdef; |
| 1207 | f->subdef_is_symbolic = false; |
| 1208 | if (f->sub.def) upb_ref2(f->sub.def, f); |
| 1209 | return true; |
| 1210 | } |
| 1211 | |
| 1212 | bool upb_fielddef_setmsgsubdef(upb_fielddef *f, const upb_msgdef *subdef, |
| 1213 | upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1214 | return upb_fielddef_setsubdef(f, upb_msgdef_upcast(subdef), s); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1215 | } |
| 1216 | |
| 1217 | bool upb_fielddef_setenumsubdef(upb_fielddef *f, const upb_enumdef *subdef, |
| 1218 | upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1219 | return upb_fielddef_setsubdef(f, upb_enumdef_upcast(subdef), s); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1220 | } |
| 1221 | |
| 1222 | bool upb_fielddef_setsubdefname(upb_fielddef *f, const char *name, |
| 1223 | upb_status *s) { |
| 1224 | assert(!upb_fielddef_isfrozen(f)); |
| 1225 | if (!upb_fielddef_hassubdef(f)) { |
| 1226 | upb_status_seterrmsg(s, "field type does not accept a subdef"); |
| 1227 | return false; |
| 1228 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1229 | /* TODO: validate name (upb_isident() doesn't quite work atm because this name |
| 1230 | * may have a leading "."). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1231 | release_subdef(f); |
| 1232 | f->sub.name = upb_strdup(name); |
| 1233 | f->subdef_is_symbolic = true; |
| 1234 | return true; |
| 1235 | } |
| 1236 | |
| 1237 | bool upb_fielddef_issubmsg(const upb_fielddef *f) { |
| 1238 | return upb_fielddef_type(f) == UPB_TYPE_MESSAGE; |
| 1239 | } |
| 1240 | |
| 1241 | bool upb_fielddef_isstring(const upb_fielddef *f) { |
| 1242 | return upb_fielddef_type(f) == UPB_TYPE_STRING || |
| 1243 | upb_fielddef_type(f) == UPB_TYPE_BYTES; |
| 1244 | } |
| 1245 | |
| 1246 | bool upb_fielddef_isseq(const upb_fielddef *f) { |
| 1247 | return upb_fielddef_label(f) == UPB_LABEL_REPEATED; |
| 1248 | } |
| 1249 | |
| 1250 | bool upb_fielddef_isprimitive(const upb_fielddef *f) { |
| 1251 | return !upb_fielddef_isstring(f) && !upb_fielddef_issubmsg(f); |
| 1252 | } |
| 1253 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 1254 | bool upb_fielddef_ismap(const upb_fielddef *f) { |
| 1255 | return upb_fielddef_isseq(f) && upb_fielddef_issubmsg(f) && |
| 1256 | upb_msgdef_mapentry(upb_fielddef_msgsubdef(f)); |
| 1257 | } |
| 1258 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 1259 | bool upb_fielddef_haspresence(const upb_fielddef *f) { |
| 1260 | if (upb_fielddef_isseq(f)) return false; |
| 1261 | if (upb_fielddef_issubmsg(f)) return true; |
| 1262 | |
| 1263 | /* Primitive field: return true unless there is a message that specifies |
| 1264 | * presence should not exist. */ |
| 1265 | if (f->msg_is_symbolic || !f->msg.def) return true; |
| 1266 | return f->msg.def->primitives_have_presence; |
| 1267 | } |
| 1268 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1269 | bool upb_fielddef_hassubdef(const upb_fielddef *f) { |
| 1270 | return upb_fielddef_issubmsg(f) || upb_fielddef_type(f) == UPB_TYPE_ENUM; |
| 1271 | } |
| 1272 | |
| 1273 | static bool between(int32_t x, int32_t low, int32_t high) { |
| 1274 | return x >= low && x <= high; |
| 1275 | } |
| 1276 | |
| 1277 | bool upb_fielddef_checklabel(int32_t label) { return between(label, 1, 3); } |
| 1278 | bool upb_fielddef_checktype(int32_t type) { return between(type, 1, 11); } |
| 1279 | bool upb_fielddef_checkintfmt(int32_t fmt) { return between(fmt, 1, 3); } |
| 1280 | |
| 1281 | bool upb_fielddef_checkdescriptortype(int32_t type) { |
| 1282 | return between(type, 1, 18); |
| 1283 | } |
| 1284 | |
| 1285 | /* upb_msgdef *****************************************************************/ |
| 1286 | |
| 1287 | static void visitmsg(const upb_refcounted *r, upb_refcounted_visit *visit, |
| 1288 | void *closure) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1289 | upb_msg_oneof_iter o; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1290 | const upb_msgdef *m = (const upb_msgdef*)r; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1291 | upb_msg_field_iter i; |
| 1292 | for(upb_msg_field_begin(&i, m); |
| 1293 | !upb_msg_field_done(&i); |
| 1294 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1295 | upb_fielddef *f = upb_msg_iter_field(&i); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1296 | visit(r, upb_fielddef_upcast2(f), closure); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1297 | } |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1298 | for(upb_msg_oneof_begin(&o, m); |
| 1299 | !upb_msg_oneof_done(&o); |
| 1300 | upb_msg_oneof_next(&o)) { |
| 1301 | upb_oneofdef *f = upb_msg_iter_oneof(&o); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1302 | visit(r, upb_oneofdef_upcast2(f), closure); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1303 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1304 | } |
| 1305 | |
| 1306 | static void freemsg(upb_refcounted *r) { |
| 1307 | upb_msgdef *m = (upb_msgdef*)r; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1308 | upb_strtable_uninit(&m->ntoo); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1309 | upb_strtable_uninit(&m->ntof); |
| 1310 | upb_inttable_uninit(&m->itof); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1311 | upb_def_uninit(upb_msgdef_upcast_mutable(m)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1312 | free(m); |
| 1313 | } |
| 1314 | |
| 1315 | upb_msgdef *upb_msgdef_new(const void *owner) { |
| 1316 | static const struct upb_refcounted_vtbl vtbl = {visitmsg, freemsg}; |
| 1317 | upb_msgdef *m = malloc(sizeof(*m)); |
| 1318 | if (!m) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1319 | if (!upb_def_init(upb_msgdef_upcast_mutable(m), UPB_DEF_MSG, &vtbl, owner)) |
| 1320 | goto err2; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1321 | if (!upb_inttable_init(&m->itof, UPB_CTYPE_PTR)) goto err3; |
| 1322 | if (!upb_strtable_init(&m->ntof, UPB_CTYPE_PTR)) goto err2; |
| 1323 | if (!upb_strtable_init(&m->ntoo, UPB_CTYPE_PTR)) goto err1; |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 1324 | m->map_entry = false; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 1325 | m->primitives_have_presence = true; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1326 | return m; |
| 1327 | |
| 1328 | err1: |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1329 | upb_strtable_uninit(&m->ntof); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1330 | err2: |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1331 | upb_inttable_uninit(&m->itof); |
| 1332 | err3: |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1333 | free(m); |
| 1334 | return NULL; |
| 1335 | } |
| 1336 | |
| 1337 | upb_msgdef *upb_msgdef_dup(const upb_msgdef *m, const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1338 | bool ok; |
| 1339 | upb_msg_field_iter i; |
| 1340 | upb_msg_oneof_iter o; |
| 1341 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1342 | upb_msgdef *newm = upb_msgdef_new(owner); |
| 1343 | if (!newm) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1344 | ok = upb_def_setfullname(upb_msgdef_upcast_mutable(newm), |
| 1345 | upb_def_fullname(upb_msgdef_upcast(m)), |
| 1346 | NULL); |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 1347 | newm->map_entry = m->map_entry; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 1348 | newm->primitives_have_presence = m->primitives_have_presence; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1349 | UPB_ASSERT_VAR(ok, ok); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1350 | for(upb_msg_field_begin(&i, m); |
| 1351 | !upb_msg_field_done(&i); |
| 1352 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1353 | upb_fielddef *f = upb_fielddef_dup(upb_msg_iter_field(&i), &f); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1354 | /* Fields in oneofs are dup'd below. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1355 | if (upb_fielddef_containingoneof(f)) continue; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1356 | if (!f || !upb_msgdef_addfield(newm, f, &f, NULL)) { |
| 1357 | upb_msgdef_unref(newm, owner); |
| 1358 | return NULL; |
| 1359 | } |
| 1360 | } |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1361 | for(upb_msg_oneof_begin(&o, m); |
| 1362 | !upb_msg_oneof_done(&o); |
| 1363 | upb_msg_oneof_next(&o)) { |
| 1364 | upb_oneofdef *f = upb_oneofdef_dup(upb_msg_iter_oneof(&o), &f); |
| 1365 | if (!f || !upb_msgdef_addoneof(newm, f, &f, NULL)) { |
| 1366 | upb_msgdef_unref(newm, owner); |
| 1367 | return NULL; |
| 1368 | } |
| 1369 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1370 | return newm; |
| 1371 | } |
| 1372 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1373 | bool upb_msgdef_freeze(upb_msgdef *m, upb_status *status) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1374 | upb_def *d = upb_msgdef_upcast_mutable(m); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1375 | return upb_def_freeze(&d, 1, status); |
| 1376 | } |
| 1377 | |
| 1378 | const char *upb_msgdef_fullname(const upb_msgdef *m) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1379 | return upb_def_fullname(upb_msgdef_upcast(m)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1380 | } |
| 1381 | |
| 1382 | bool upb_msgdef_setfullname(upb_msgdef *m, const char *fullname, |
| 1383 | upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1384 | return upb_def_setfullname(upb_msgdef_upcast_mutable(m), fullname, s); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1385 | } |
| 1386 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1387 | /* Helper: check that the field |f| is safe to add to msgdef |m|. Set an error |
| 1388 | * on status |s| and return false if not. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1389 | static bool check_field_add(const upb_msgdef *m, const upb_fielddef *f, |
| 1390 | upb_status *s) { |
| 1391 | if (upb_fielddef_containingtype(f) != NULL) { |
| 1392 | upb_status_seterrmsg(s, "fielddef already belongs to a message"); |
| 1393 | return false; |
| 1394 | } else if (upb_fielddef_name(f) == NULL || upb_fielddef_number(f) == 0) { |
| 1395 | upb_status_seterrmsg(s, "field name or number were not set"); |
| 1396 | return false; |
| 1397 | } else if (upb_msgdef_ntofz(m, upb_fielddef_name(f)) || |
| 1398 | upb_msgdef_itof(m, upb_fielddef_number(f))) { |
| 1399 | upb_status_seterrmsg(s, "duplicate field name or number for field"); |
| 1400 | return false; |
| 1401 | } |
| 1402 | return true; |
| 1403 | } |
| 1404 | |
| 1405 | static void add_field(upb_msgdef *m, upb_fielddef *f, const void *ref_donor) { |
| 1406 | release_containingtype(f); |
| 1407 | f->msg.def = m; |
| 1408 | f->msg_is_symbolic = false; |
| 1409 | upb_inttable_insert(&m->itof, upb_fielddef_number(f), upb_value_ptr(f)); |
| 1410 | upb_strtable_insert(&m->ntof, upb_fielddef_name(f), upb_value_ptr(f)); |
| 1411 | upb_ref2(f, m); |
| 1412 | upb_ref2(m, f); |
| 1413 | if (ref_donor) upb_fielddef_unref(f, ref_donor); |
| 1414 | } |
| 1415 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1416 | bool upb_msgdef_addfield(upb_msgdef *m, upb_fielddef *f, const void *ref_donor, |
| 1417 | upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1418 | /* TODO: extensions need to have a separate namespace, because proto2 allows a |
| 1419 | * top-level extension (ie. one not in any package) to have the same name as a |
| 1420 | * field from the message. |
| 1421 | * |
| 1422 | * This also implies that there needs to be a separate lookup-by-name method |
| 1423 | * for extensions. It seems desirable for iteration to return both extensions |
| 1424 | * and non-extensions though. |
| 1425 | * |
| 1426 | * We also need to validate that the field number is in an extension range iff |
| 1427 | * it is an extension. |
| 1428 | * |
| 1429 | * This method is idempotent. Check if |f| is already part of this msgdef and |
| 1430 | * return immediately if so. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1431 | if (upb_fielddef_containingtype(f) == m) { |
| 1432 | return true; |
| 1433 | } |
| 1434 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1435 | /* Check constraints for all fields before performing any action. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1436 | if (!check_field_add(m, f, s)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1437 | return false; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1438 | } else if (upb_fielddef_containingoneof(f) != NULL) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1439 | /* Fields in a oneof can only be added by adding the oneof to the msgdef. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1440 | upb_status_seterrmsg(s, "fielddef is part of a oneof"); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1441 | return false; |
| 1442 | } |
| 1443 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1444 | /* Constraint checks ok, perform the action. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1445 | add_field(m, f, ref_donor); |
| 1446 | return true; |
| 1447 | } |
| 1448 | |
| 1449 | bool upb_msgdef_addoneof(upb_msgdef *m, upb_oneofdef *o, const void *ref_donor, |
| 1450 | upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1451 | upb_oneof_iter it; |
| 1452 | |
| 1453 | /* Check various conditions that would prevent this oneof from being added. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1454 | if (upb_oneofdef_containingtype(o)) { |
| 1455 | upb_status_seterrmsg(s, "oneofdef already belongs to a message"); |
| 1456 | return false; |
| 1457 | } else if (upb_oneofdef_name(o) == NULL) { |
| 1458 | upb_status_seterrmsg(s, "oneofdef name was not set"); |
| 1459 | return false; |
| 1460 | } else if (upb_msgdef_ntooz(m, upb_oneofdef_name(o))) { |
| 1461 | upb_status_seterrmsg(s, "duplicate oneof name"); |
| 1462 | return false; |
| 1463 | } |
| 1464 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1465 | /* Check that all of the oneof's fields do not conflict with names or numbers |
| 1466 | * of fields already in the message. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1467 | for (upb_oneof_begin(&it, o); !upb_oneof_done(&it); upb_oneof_next(&it)) { |
| 1468 | const upb_fielddef *f = upb_oneof_iter_field(&it); |
| 1469 | if (!check_field_add(m, f, s)) { |
| 1470 | return false; |
| 1471 | } |
| 1472 | } |
| 1473 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1474 | /* Everything checks out -- commit now. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1475 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1476 | /* Add oneof itself first. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1477 | o->parent = m; |
| 1478 | upb_strtable_insert(&m->ntoo, upb_oneofdef_name(o), upb_value_ptr(o)); |
| 1479 | upb_ref2(o, m); |
| 1480 | upb_ref2(m, o); |
| 1481 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1482 | /* Add each field of the oneof directly to the msgdef. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1483 | for (upb_oneof_begin(&it, o); !upb_oneof_done(&it); upb_oneof_next(&it)) { |
| 1484 | upb_fielddef *f = upb_oneof_iter_field(&it); |
| 1485 | add_field(m, f, NULL); |
| 1486 | } |
| 1487 | |
| 1488 | if (ref_donor) upb_oneofdef_unref(o, ref_donor); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1489 | |
| 1490 | return true; |
| 1491 | } |
| 1492 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 1493 | void upb_msgdef_setprimitiveshavepresence(upb_msgdef *m, bool have_presence) { |
| 1494 | assert(!upb_msgdef_isfrozen(m)); |
| 1495 | m->primitives_have_presence = have_presence; |
| 1496 | } |
| 1497 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1498 | const upb_fielddef *upb_msgdef_itof(const upb_msgdef *m, uint32_t i) { |
| 1499 | upb_value val; |
| 1500 | return upb_inttable_lookup32(&m->itof, i, &val) ? |
| 1501 | upb_value_getptr(val) : NULL; |
| 1502 | } |
| 1503 | |
| 1504 | const upb_fielddef *upb_msgdef_ntof(const upb_msgdef *m, const char *name, |
| 1505 | size_t len) { |
| 1506 | upb_value val; |
| 1507 | return upb_strtable_lookup2(&m->ntof, name, len, &val) ? |
| 1508 | upb_value_getptr(val) : NULL; |
| 1509 | } |
| 1510 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1511 | const upb_oneofdef *upb_msgdef_ntoo(const upb_msgdef *m, const char *name, |
| 1512 | size_t len) { |
| 1513 | upb_value val; |
| 1514 | return upb_strtable_lookup2(&m->ntoo, name, len, &val) ? |
| 1515 | upb_value_getptr(val) : NULL; |
| 1516 | } |
| 1517 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1518 | int upb_msgdef_numfields(const upb_msgdef *m) { |
| 1519 | return upb_strtable_count(&m->ntof); |
| 1520 | } |
| 1521 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1522 | int upb_msgdef_numoneofs(const upb_msgdef *m) { |
| 1523 | return upb_strtable_count(&m->ntoo); |
| 1524 | } |
| 1525 | |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 1526 | void upb_msgdef_setmapentry(upb_msgdef *m, bool map_entry) { |
| 1527 | assert(!upb_msgdef_isfrozen(m)); |
| 1528 | m->map_entry = map_entry; |
| 1529 | } |
| 1530 | |
| 1531 | bool upb_msgdef_mapentry(const upb_msgdef *m) { |
| 1532 | return m->map_entry; |
| 1533 | } |
| 1534 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1535 | void upb_msg_field_begin(upb_msg_field_iter *iter, const upb_msgdef *m) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1536 | upb_inttable_begin(iter, &m->itof); |
| 1537 | } |
| 1538 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1539 | void upb_msg_field_next(upb_msg_field_iter *iter) { upb_inttable_next(iter); } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1540 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1541 | bool upb_msg_field_done(const upb_msg_field_iter *iter) { |
| 1542 | return upb_inttable_done(iter); |
| 1543 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1544 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1545 | upb_fielddef *upb_msg_iter_field(const upb_msg_field_iter *iter) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1546 | return (upb_fielddef*)upb_value_getptr(upb_inttable_iter_value(iter)); |
| 1547 | } |
| 1548 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1549 | void upb_msg_field_iter_setdone(upb_msg_field_iter *iter) { |
| 1550 | upb_inttable_iter_setdone(iter); |
| 1551 | } |
| 1552 | |
| 1553 | void upb_msg_oneof_begin(upb_msg_oneof_iter *iter, const upb_msgdef *m) { |
| 1554 | upb_strtable_begin(iter, &m->ntoo); |
| 1555 | } |
| 1556 | |
| 1557 | void upb_msg_oneof_next(upb_msg_oneof_iter *iter) { upb_strtable_next(iter); } |
| 1558 | |
| 1559 | bool upb_msg_oneof_done(const upb_msg_oneof_iter *iter) { |
| 1560 | return upb_strtable_done(iter); |
| 1561 | } |
| 1562 | |
| 1563 | upb_oneofdef *upb_msg_iter_oneof(const upb_msg_oneof_iter *iter) { |
| 1564 | return (upb_oneofdef*)upb_value_getptr(upb_strtable_iter_value(iter)); |
| 1565 | } |
| 1566 | |
| 1567 | void upb_msg_oneof_iter_setdone(upb_msg_oneof_iter *iter) { |
| 1568 | upb_strtable_iter_setdone(iter); |
| 1569 | } |
| 1570 | |
| 1571 | /* upb_oneofdef ***************************************************************/ |
| 1572 | |
| 1573 | static void visitoneof(const upb_refcounted *r, upb_refcounted_visit *visit, |
| 1574 | void *closure) { |
| 1575 | const upb_oneofdef *o = (const upb_oneofdef*)r; |
| 1576 | upb_oneof_iter i; |
| 1577 | for (upb_oneof_begin(&i, o); !upb_oneof_done(&i); upb_oneof_next(&i)) { |
| 1578 | const upb_fielddef *f = upb_oneof_iter_field(&i); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1579 | visit(r, upb_fielddef_upcast2(f), closure); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1580 | } |
| 1581 | if (o->parent) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1582 | visit(r, upb_msgdef_upcast2(o->parent), closure); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1583 | } |
| 1584 | } |
| 1585 | |
| 1586 | static void freeoneof(upb_refcounted *r) { |
| 1587 | upb_oneofdef *o = (upb_oneofdef*)r; |
| 1588 | upb_strtable_uninit(&o->ntof); |
| 1589 | upb_inttable_uninit(&o->itof); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1590 | upb_def_uninit(upb_oneofdef_upcast_mutable(o)); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1591 | free(o); |
| 1592 | } |
| 1593 | |
| 1594 | upb_oneofdef *upb_oneofdef_new(const void *owner) { |
| 1595 | static const struct upb_refcounted_vtbl vtbl = {visitoneof, freeoneof}; |
| 1596 | upb_oneofdef *o = malloc(sizeof(*o)); |
| 1597 | o->parent = NULL; |
| 1598 | if (!o) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1599 | if (!upb_def_init(upb_oneofdef_upcast_mutable(o), UPB_DEF_ONEOF, &vtbl, |
| 1600 | owner)) |
| 1601 | goto err2; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1602 | if (!upb_inttable_init(&o->itof, UPB_CTYPE_PTR)) goto err2; |
| 1603 | if (!upb_strtable_init(&o->ntof, UPB_CTYPE_PTR)) goto err1; |
| 1604 | return o; |
| 1605 | |
| 1606 | err1: |
| 1607 | upb_inttable_uninit(&o->itof); |
| 1608 | err2: |
| 1609 | free(o); |
| 1610 | return NULL; |
| 1611 | } |
| 1612 | |
| 1613 | upb_oneofdef *upb_oneofdef_dup(const upb_oneofdef *o, const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1614 | bool ok; |
| 1615 | upb_oneof_iter i; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1616 | upb_oneofdef *newo = upb_oneofdef_new(owner); |
| 1617 | if (!newo) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1618 | ok = upb_def_setfullname(upb_oneofdef_upcast_mutable(newo), |
| 1619 | upb_def_fullname(upb_oneofdef_upcast(o)), NULL); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1620 | UPB_ASSERT_VAR(ok, ok); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1621 | for (upb_oneof_begin(&i, o); !upb_oneof_done(&i); upb_oneof_next(&i)) { |
| 1622 | upb_fielddef *f = upb_fielddef_dup(upb_oneof_iter_field(&i), &f); |
| 1623 | if (!f || !upb_oneofdef_addfield(newo, f, &f, NULL)) { |
| 1624 | upb_oneofdef_unref(newo, owner); |
| 1625 | return NULL; |
| 1626 | } |
| 1627 | } |
| 1628 | return newo; |
| 1629 | } |
| 1630 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1631 | const char *upb_oneofdef_name(const upb_oneofdef *o) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1632 | return upb_def_fullname(upb_oneofdef_upcast(o)); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1633 | } |
| 1634 | |
| 1635 | bool upb_oneofdef_setname(upb_oneofdef *o, const char *fullname, |
| 1636 | upb_status *s) { |
| 1637 | if (upb_oneofdef_containingtype(o)) { |
| 1638 | upb_status_seterrmsg(s, "oneof already added to a message"); |
| 1639 | return false; |
| 1640 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1641 | return upb_def_setfullname(upb_oneofdef_upcast_mutable(o), fullname, s); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1642 | } |
| 1643 | |
| 1644 | const upb_msgdef *upb_oneofdef_containingtype(const upb_oneofdef *o) { |
| 1645 | return o->parent; |
| 1646 | } |
| 1647 | |
| 1648 | int upb_oneofdef_numfields(const upb_oneofdef *o) { |
| 1649 | return upb_strtable_count(&o->ntof); |
| 1650 | } |
| 1651 | |
| 1652 | bool upb_oneofdef_addfield(upb_oneofdef *o, upb_fielddef *f, |
| 1653 | const void *ref_donor, |
| 1654 | upb_status *s) { |
| 1655 | assert(!upb_oneofdef_isfrozen(o)); |
| 1656 | assert(!o->parent || !upb_msgdef_isfrozen(o->parent)); |
| 1657 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1658 | /* This method is idempotent. Check if |f| is already part of this oneofdef |
| 1659 | * and return immediately if so. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1660 | if (upb_fielddef_containingoneof(f) == o) { |
| 1661 | return true; |
| 1662 | } |
| 1663 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1664 | /* The field must have an OPTIONAL label. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1665 | if (upb_fielddef_label(f) != UPB_LABEL_OPTIONAL) { |
| 1666 | upb_status_seterrmsg(s, "fields in oneof must have OPTIONAL label"); |
| 1667 | return false; |
| 1668 | } |
| 1669 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1670 | /* Check that no field with this name or number exists already in the oneof. |
| 1671 | * Also check that the field is not already part of a oneof. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1672 | if (upb_fielddef_name(f) == NULL || upb_fielddef_number(f) == 0) { |
| 1673 | upb_status_seterrmsg(s, "field name or number were not set"); |
| 1674 | return false; |
| 1675 | } else if (upb_oneofdef_itof(o, upb_fielddef_number(f)) || |
| 1676 | upb_oneofdef_ntofz(o, upb_fielddef_name(f))) { |
| 1677 | upb_status_seterrmsg(s, "duplicate field name or number"); |
| 1678 | return false; |
| 1679 | } else if (upb_fielddef_containingoneof(f) != NULL) { |
| 1680 | upb_status_seterrmsg(s, "fielddef already belongs to a oneof"); |
| 1681 | return false; |
| 1682 | } |
| 1683 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1684 | /* We allow adding a field to the oneof either if the field is not part of a |
| 1685 | * msgdef, or if it is and we are also part of the same msgdef. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1686 | if (o->parent == NULL) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1687 | /* If we're not in a msgdef, the field cannot be either. Otherwise we would |
| 1688 | * need to magically add this oneof to a msgdef to remain consistent, which |
| 1689 | * is surprising behavior. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1690 | if (upb_fielddef_containingtype(f) != NULL) { |
| 1691 | upb_status_seterrmsg(s, "fielddef already belongs to a message, but " |
| 1692 | "oneof does not"); |
| 1693 | return false; |
| 1694 | } |
| 1695 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1696 | /* If we're in a msgdef, the user can add fields that either aren't in any |
| 1697 | * msgdef (in which case they're added to our msgdef) or already a part of |
| 1698 | * our msgdef. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1699 | if (upb_fielddef_containingtype(f) != NULL && |
| 1700 | upb_fielddef_containingtype(f) != o->parent) { |
| 1701 | upb_status_seterrmsg(s, "fielddef belongs to a different message " |
| 1702 | "than oneof"); |
| 1703 | return false; |
| 1704 | } |
| 1705 | } |
| 1706 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1707 | /* Commit phase. First add the field to our parent msgdef, if any, because |
| 1708 | * that may fail; then add the field to our own tables. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 1709 | |
| 1710 | if (o->parent != NULL && upb_fielddef_containingtype(f) == NULL) { |
| 1711 | if (!upb_msgdef_addfield((upb_msgdef*)o->parent, f, NULL, s)) { |
| 1712 | return false; |
| 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | release_containingtype(f); |
| 1717 | f->oneof = o; |
| 1718 | upb_inttable_insert(&o->itof, upb_fielddef_number(f), upb_value_ptr(f)); |
| 1719 | upb_strtable_insert(&o->ntof, upb_fielddef_name(f), upb_value_ptr(f)); |
| 1720 | upb_ref2(f, o); |
| 1721 | upb_ref2(o, f); |
| 1722 | if (ref_donor) upb_fielddef_unref(f, ref_donor); |
| 1723 | |
| 1724 | return true; |
| 1725 | } |
| 1726 | |
| 1727 | const upb_fielddef *upb_oneofdef_ntof(const upb_oneofdef *o, |
| 1728 | const char *name, size_t length) { |
| 1729 | upb_value val; |
| 1730 | return upb_strtable_lookup2(&o->ntof, name, length, &val) ? |
| 1731 | upb_value_getptr(val) : NULL; |
| 1732 | } |
| 1733 | |
| 1734 | const upb_fielddef *upb_oneofdef_itof(const upb_oneofdef *o, uint32_t num) { |
| 1735 | upb_value val; |
| 1736 | return upb_inttable_lookup32(&o->itof, num, &val) ? |
| 1737 | upb_value_getptr(val) : NULL; |
| 1738 | } |
| 1739 | |
| 1740 | void upb_oneof_begin(upb_oneof_iter *iter, const upb_oneofdef *o) { |
| 1741 | upb_inttable_begin(iter, &o->itof); |
| 1742 | } |
| 1743 | |
| 1744 | void upb_oneof_next(upb_oneof_iter *iter) { |
| 1745 | upb_inttable_next(iter); |
| 1746 | } |
| 1747 | |
| 1748 | bool upb_oneof_done(upb_oneof_iter *iter) { |
| 1749 | return upb_inttable_done(iter); |
| 1750 | } |
| 1751 | |
| 1752 | upb_fielddef *upb_oneof_iter_field(const upb_oneof_iter *iter) { |
| 1753 | return (upb_fielddef*)upb_value_getptr(upb_inttable_iter_value(iter)); |
| 1754 | } |
| 1755 | |
| 1756 | void upb_oneof_iter_setdone(upb_oneof_iter *iter) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 1757 | upb_inttable_iter_setdone(iter); |
| 1758 | } |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1759 | |
| 1760 | |
| 1761 | #include <stdlib.h> |
| 1762 | #include <stdio.h> |
| 1763 | #include <string.h> |
| 1764 | |
| 1765 | typedef struct cleanup_ent { |
| 1766 | upb_cleanup_func *cleanup; |
| 1767 | void *ud; |
| 1768 | struct cleanup_ent *next; |
| 1769 | } cleanup_ent; |
| 1770 | |
| 1771 | static void *seeded_alloc(void *ud, void *ptr, size_t oldsize, size_t size); |
| 1772 | |
| 1773 | /* Default allocator **********************************************************/ |
| 1774 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1775 | /* Just use realloc, keeping all allocated blocks in a linked list to destroy at |
| 1776 | * the end. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1777 | |
| 1778 | typedef struct mem_block { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1779 | /* List is doubly-linked, because in cases where realloc() moves an existing |
| 1780 | * block, we need to be able to remove the old pointer from the list |
| 1781 | * efficiently. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1782 | struct mem_block *prev, *next; |
| 1783 | #ifndef NDEBUG |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1784 | size_t size; /* Doesn't include mem_block structure. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1785 | #endif |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1786 | } mem_block; |
| 1787 | |
| 1788 | typedef struct { |
| 1789 | mem_block *head; |
| 1790 | } default_alloc_ud; |
| 1791 | |
| 1792 | static void *default_alloc(void *_ud, void *ptr, size_t oldsize, size_t size) { |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1793 | default_alloc_ud *ud = _ud; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1794 | mem_block *from, *block; |
| 1795 | void *ret; |
| 1796 | UPB_UNUSED(oldsize); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1797 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1798 | from = ptr ? (void*)((char*)ptr - sizeof(mem_block)) : NULL; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1799 | |
| 1800 | #ifndef NDEBUG |
| 1801 | if (from) { |
| 1802 | assert(oldsize <= from->size); |
| 1803 | } |
| 1804 | #endif |
| 1805 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1806 | /* TODO(haberman): we probably need to provide even better alignment here, |
| 1807 | * like 16-byte alignment of the returned data pointer. */ |
| 1808 | block = realloc(from, size + sizeof(mem_block)); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1809 | if (!block) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1810 | ret = (char*)block + sizeof(*block); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1811 | |
| 1812 | #ifndef NDEBUG |
| 1813 | block->size = size; |
| 1814 | #endif |
| 1815 | |
| 1816 | if (from) { |
| 1817 | if (block != from) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1818 | /* The block was moved, so pointers in next and prev blocks must be |
| 1819 | * updated to its new location. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1820 | if (block->next) block->next->prev = block; |
| 1821 | if (block->prev) block->prev->next = block; |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 1822 | if (ud->head == from) ud->head = block; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1823 | } |
| 1824 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1825 | /* Insert at head of linked list. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1826 | block->prev = NULL; |
| 1827 | block->next = ud->head; |
| 1828 | if (block->next) block->next->prev = block; |
| 1829 | ud->head = block; |
| 1830 | } |
| 1831 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1832 | return ret; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1833 | } |
| 1834 | |
| 1835 | static void default_alloc_cleanup(void *_ud) { |
| 1836 | default_alloc_ud *ud = _ud; |
| 1837 | mem_block *block = ud->head; |
| 1838 | |
| 1839 | while (block) { |
| 1840 | void *to_free = block; |
| 1841 | block = block->next; |
| 1842 | free(to_free); |
| 1843 | } |
| 1844 | } |
| 1845 | |
| 1846 | |
| 1847 | /* Standard error functions ***************************************************/ |
| 1848 | |
| 1849 | static bool default_err(void *ud, const upb_status *status) { |
| 1850 | UPB_UNUSED(ud); |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 1851 | UPB_UNUSED(status); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1852 | return false; |
| 1853 | } |
| 1854 | |
| 1855 | static bool write_err_to(void *ud, const upb_status *status) { |
| 1856 | upb_status *copy_to = ud; |
| 1857 | upb_status_copy(copy_to, status); |
| 1858 | return false; |
| 1859 | } |
| 1860 | |
| 1861 | |
| 1862 | /* upb_env ********************************************************************/ |
| 1863 | |
| 1864 | void upb_env_init(upb_env *e) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1865 | default_alloc_ud *ud = (default_alloc_ud*)&e->default_alloc_ud; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1866 | e->ok_ = true; |
| 1867 | e->bytes_allocated = 0; |
| 1868 | e->cleanup_head = NULL; |
| 1869 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1870 | ud->head = NULL; |
| 1871 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1872 | /* Set default functions. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1873 | upb_env_setallocfunc(e, default_alloc, ud); |
| 1874 | upb_env_seterrorfunc(e, default_err, NULL); |
| 1875 | } |
| 1876 | |
| 1877 | void upb_env_uninit(upb_env *e) { |
| 1878 | cleanup_ent *ent = e->cleanup_head; |
| 1879 | |
| 1880 | while (ent) { |
| 1881 | ent->cleanup(ent->ud); |
| 1882 | ent = ent->next; |
| 1883 | } |
| 1884 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1885 | /* Must do this after running cleanup functions, because this will delete |
| 1886 | the memory we store our cleanup entries in! */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1887 | if (e->alloc == default_alloc) { |
| 1888 | default_alloc_cleanup(e->alloc_ud); |
| 1889 | } |
| 1890 | } |
| 1891 | |
| 1892 | UPB_FORCEINLINE void upb_env_setallocfunc(upb_env *e, upb_alloc_func *alloc, |
| 1893 | void *ud) { |
| 1894 | e->alloc = alloc; |
| 1895 | e->alloc_ud = ud; |
| 1896 | } |
| 1897 | |
| 1898 | UPB_FORCEINLINE void upb_env_seterrorfunc(upb_env *e, upb_error_func *func, |
| 1899 | void *ud) { |
| 1900 | e->err = func; |
| 1901 | e->err_ud = ud; |
| 1902 | } |
| 1903 | |
| 1904 | void upb_env_reporterrorsto(upb_env *e, upb_status *status) { |
| 1905 | e->err = write_err_to; |
| 1906 | e->err_ud = status; |
| 1907 | } |
| 1908 | |
| 1909 | bool upb_env_ok(const upb_env *e) { |
| 1910 | return e->ok_; |
| 1911 | } |
| 1912 | |
| 1913 | bool upb_env_reporterror(upb_env *e, const upb_status *status) { |
| 1914 | e->ok_ = false; |
| 1915 | return e->err(e->err_ud, status); |
| 1916 | } |
| 1917 | |
| 1918 | bool upb_env_addcleanup(upb_env *e, upb_cleanup_func *func, void *ud) { |
| 1919 | cleanup_ent *ent = upb_env_malloc(e, sizeof(cleanup_ent)); |
| 1920 | if (!ent) return false; |
| 1921 | |
| 1922 | ent->cleanup = func; |
| 1923 | ent->ud = ud; |
| 1924 | ent->next = e->cleanup_head; |
| 1925 | e->cleanup_head = ent; |
| 1926 | |
| 1927 | return true; |
| 1928 | } |
| 1929 | |
| 1930 | void *upb_env_malloc(upb_env *e, size_t size) { |
| 1931 | e->bytes_allocated += size; |
| 1932 | if (e->alloc == seeded_alloc) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1933 | /* This is equivalent to the next branch, but allows inlining for a |
| 1934 | * measurable perf benefit. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1935 | return seeded_alloc(e->alloc_ud, NULL, 0, size); |
| 1936 | } else { |
| 1937 | return e->alloc(e->alloc_ud, NULL, 0, size); |
| 1938 | } |
| 1939 | } |
| 1940 | |
| 1941 | void *upb_env_realloc(upb_env *e, void *ptr, size_t oldsize, size_t size) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1942 | char *ret; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1943 | assert(oldsize <= size); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1944 | ret = e->alloc(e->alloc_ud, ptr, oldsize, size); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1945 | |
| 1946 | #ifndef NDEBUG |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1947 | /* Overwrite non-preserved memory to ensure callers are passing the oldsize |
| 1948 | * that they truly require. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1949 | memset(ret + oldsize, 0xff, size - oldsize); |
| 1950 | #endif |
| 1951 | |
| 1952 | return ret; |
| 1953 | } |
| 1954 | |
| 1955 | size_t upb_env_bytesallocated(const upb_env *e) { |
| 1956 | return e->bytes_allocated; |
| 1957 | } |
| 1958 | |
| 1959 | |
| 1960 | /* upb_seededalloc ************************************************************/ |
| 1961 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1962 | /* Be conservative and choose 16 in case anyone is using SSE. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1963 | static const size_t maxalign = 16; |
| 1964 | |
| 1965 | static size_t align_up(size_t size) { |
| 1966 | return ((size + maxalign - 1) / maxalign) * maxalign; |
| 1967 | } |
| 1968 | |
| 1969 | UPB_FORCEINLINE static void *seeded_alloc(void *ud, void *ptr, size_t oldsize, |
| 1970 | size_t size) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1971 | upb_seededalloc *a = ud; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1972 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1973 | size = align_up(size); |
| 1974 | |
| 1975 | assert(a->mem_limit >= a->mem_ptr); |
| 1976 | |
| 1977 | if (oldsize == 0 && size <= (size_t)(a->mem_limit - a->mem_ptr)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1978 | /* Fast path: we can satisfy from the initial allocation. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1979 | void *ret = a->mem_ptr; |
| 1980 | a->mem_ptr += size; |
| 1981 | return ret; |
| 1982 | } else { |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1983 | char *chptr = ptr; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 1984 | /* Slow path: fallback to other allocator. */ |
| 1985 | a->need_cleanup = true; |
| 1986 | /* Is `ptr` part of the user-provided initial block? Don't pass it to the |
| 1987 | * default allocator if so; otherwise, it may try to realloc() the block. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1988 | if (chptr >= a->mem_base && chptr < a->mem_limit) { |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 1989 | void *ret; |
| 1990 | assert(chptr + oldsize <= a->mem_limit); |
| 1991 | ret = a->alloc(a->alloc_ud, NULL, 0, size); |
| 1992 | if (ret) memcpy(ret, ptr, oldsize); |
| 1993 | return ret; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 1994 | } else { |
| 1995 | return a->alloc(a->alloc_ud, ptr, oldsize, size); |
| 1996 | } |
| 1997 | } |
| 1998 | } |
| 1999 | |
| 2000 | void upb_seededalloc_init(upb_seededalloc *a, void *mem, size_t len) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2001 | default_alloc_ud *ud = (default_alloc_ud*)&a->default_alloc_ud; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 2002 | a->mem_base = mem; |
| 2003 | a->mem_ptr = mem; |
| 2004 | a->mem_limit = (char*)mem + len; |
| 2005 | a->need_cleanup = false; |
| 2006 | a->returned_allocfunc = false; |
| 2007 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 2008 | ud->head = NULL; |
| 2009 | |
| 2010 | upb_seededalloc_setfallbackalloc(a, default_alloc, ud); |
| 2011 | } |
| 2012 | |
| 2013 | void upb_seededalloc_uninit(upb_seededalloc *a) { |
| 2014 | if (a->alloc == default_alloc && a->need_cleanup) { |
| 2015 | default_alloc_cleanup(a->alloc_ud); |
| 2016 | } |
| 2017 | } |
| 2018 | |
| 2019 | UPB_FORCEINLINE void upb_seededalloc_setfallbackalloc(upb_seededalloc *a, |
| 2020 | upb_alloc_func *alloc, |
| 2021 | void *ud) { |
| 2022 | assert(!a->returned_allocfunc); |
| 2023 | a->alloc = alloc; |
| 2024 | a->alloc_ud = ud; |
| 2025 | } |
| 2026 | |
| 2027 | upb_alloc_func *upb_seededalloc_getallocfunc(upb_seededalloc *a) { |
| 2028 | a->returned_allocfunc = true; |
| 2029 | return seeded_alloc; |
| 2030 | } |
| 2031 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 2032 | ** TODO(haberman): it's unclear whether a lot of the consistency checks should |
| 2033 | ** assert() or return false. |
| 2034 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2035 | |
| 2036 | |
| 2037 | #include <stdlib.h> |
| 2038 | #include <string.h> |
| 2039 | |
| 2040 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2041 | |
| 2042 | /* Defined for the sole purpose of having a unique pointer value for |
| 2043 | * UPB_NO_CLOSURE. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2044 | char _upb_noclosure; |
| 2045 | |
| 2046 | static void freehandlers(upb_refcounted *r) { |
| 2047 | upb_handlers *h = (upb_handlers*)r; |
| 2048 | |
| 2049 | upb_inttable_iter i; |
| 2050 | upb_inttable_begin(&i, &h->cleanup_); |
| 2051 | for(; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
| 2052 | void *val = (void*)upb_inttable_iter_key(&i); |
| 2053 | upb_value func_val = upb_inttable_iter_value(&i); |
| 2054 | upb_handlerfree *func = upb_value_getfptr(func_val); |
| 2055 | func(val); |
| 2056 | } |
| 2057 | |
| 2058 | upb_inttable_uninit(&h->cleanup_); |
| 2059 | upb_msgdef_unref(h->msg, h); |
| 2060 | free(h->sub); |
| 2061 | free(h); |
| 2062 | } |
| 2063 | |
| 2064 | static void visithandlers(const upb_refcounted *r, upb_refcounted_visit *visit, |
| 2065 | void *closure) { |
| 2066 | const upb_handlers *h = (const upb_handlers*)r; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 2067 | upb_msg_field_iter i; |
| 2068 | for(upb_msg_field_begin(&i, h->msg); |
| 2069 | !upb_msg_field_done(&i); |
| 2070 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2071 | upb_fielddef *f = upb_msg_iter_field(&i); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2072 | const upb_handlers *sub; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2073 | if (!upb_fielddef_issubmsg(f)) continue; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2074 | sub = upb_handlers_getsubhandlers(h, f); |
| 2075 | if (sub) visit(r, upb_handlers_upcast(sub), closure); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2076 | } |
| 2077 | } |
| 2078 | |
| 2079 | static const struct upb_refcounted_vtbl vtbl = {visithandlers, freehandlers}; |
| 2080 | |
| 2081 | typedef struct { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2082 | upb_inttable tab; /* maps upb_msgdef* -> upb_handlers*. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2083 | upb_handlers_callback *callback; |
| 2084 | const void *closure; |
| 2085 | } dfs_state; |
| 2086 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2087 | /* TODO(haberman): discard upb_handlers* objects that do not actually have any |
| 2088 | * handlers set and cannot reach any upb_handlers* object that does. This is |
| 2089 | * slightly tricky to do correctly. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2090 | static upb_handlers *newformsg(const upb_msgdef *m, const void *owner, |
| 2091 | dfs_state *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2092 | upb_msg_field_iter i; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2093 | upb_handlers *h = upb_handlers_new(m, owner); |
| 2094 | if (!h) return NULL; |
| 2095 | if (!upb_inttable_insertptr(&s->tab, m, upb_value_ptr(h))) goto oom; |
| 2096 | |
| 2097 | s->callback(s->closure, h); |
| 2098 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2099 | /* For each submessage field, get or create a handlers object and set it as |
| 2100 | * the subhandlers. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 2101 | for(upb_msg_field_begin(&i, m); |
| 2102 | !upb_msg_field_done(&i); |
| 2103 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2104 | upb_fielddef *f = upb_msg_iter_field(&i); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2105 | const upb_msgdef *subdef; |
| 2106 | upb_value subm_ent; |
| 2107 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2108 | if (!upb_fielddef_issubmsg(f)) continue; |
| 2109 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2110 | subdef = upb_downcast_msgdef(upb_fielddef_subdef(f)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2111 | if (upb_inttable_lookupptr(&s->tab, subdef, &subm_ent)) { |
| 2112 | upb_handlers_setsubhandlers(h, f, upb_value_getptr(subm_ent)); |
| 2113 | } else { |
| 2114 | upb_handlers *sub_mh = newformsg(subdef, &sub_mh, s); |
| 2115 | if (!sub_mh) goto oom; |
| 2116 | upb_handlers_setsubhandlers(h, f, sub_mh); |
| 2117 | upb_handlers_unref(sub_mh, &sub_mh); |
| 2118 | } |
| 2119 | } |
| 2120 | return h; |
| 2121 | |
| 2122 | oom: |
| 2123 | upb_handlers_unref(h, owner); |
| 2124 | return NULL; |
| 2125 | } |
| 2126 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2127 | /* Given a selector for a STARTSUBMSG handler, resolves to a pointer to the |
| 2128 | * subhandlers for this submessage field. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2129 | #define SUBH(h, selector) (h->sub[selector]) |
| 2130 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2131 | /* The selector for a submessage field is the field index. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2132 | #define SUBH_F(h, f) SUBH(h, f->index_) |
| 2133 | |
| 2134 | static int32_t trygetsel(upb_handlers *h, const upb_fielddef *f, |
| 2135 | upb_handlertype_t type) { |
| 2136 | upb_selector_t sel; |
| 2137 | assert(!upb_handlers_isfrozen(h)); |
| 2138 | if (upb_handlers_msgdef(h) != upb_fielddef_containingtype(f)) { |
| 2139 | upb_status_seterrf( |
| 2140 | &h->status_, "type mismatch: field %s does not belong to message %s", |
| 2141 | upb_fielddef_name(f), upb_msgdef_fullname(upb_handlers_msgdef(h))); |
| 2142 | return -1; |
| 2143 | } |
| 2144 | if (!upb_handlers_getselector(f, type, &sel)) { |
| 2145 | upb_status_seterrf( |
| 2146 | &h->status_, |
| 2147 | "type mismatch: cannot register handler type %d for field %s", |
| 2148 | type, upb_fielddef_name(f)); |
| 2149 | return -1; |
| 2150 | } |
| 2151 | return sel; |
| 2152 | } |
| 2153 | |
| 2154 | static upb_selector_t handlers_getsel(upb_handlers *h, const upb_fielddef *f, |
| 2155 | upb_handlertype_t type) { |
| 2156 | int32_t sel = trygetsel(h, f, type); |
| 2157 | assert(sel >= 0); |
| 2158 | return sel; |
| 2159 | } |
| 2160 | |
| 2161 | static const void **returntype(upb_handlers *h, const upb_fielddef *f, |
| 2162 | upb_handlertype_t type) { |
| 2163 | return &h->table[handlers_getsel(h, f, type)].attr.return_closure_type_; |
| 2164 | } |
| 2165 | |
| 2166 | static bool doset(upb_handlers *h, int32_t sel, const upb_fielddef *f, |
| 2167 | upb_handlertype_t type, upb_func *func, |
| 2168 | upb_handlerattr *attr) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2169 | upb_handlerattr set_attr = UPB_HANDLERATTR_INITIALIZER; |
| 2170 | const void *closure_type; |
| 2171 | const void **context_closure_type; |
| 2172 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2173 | assert(!upb_handlers_isfrozen(h)); |
| 2174 | |
| 2175 | if (sel < 0) { |
| 2176 | upb_status_seterrmsg(&h->status_, |
| 2177 | "incorrect handler type for this field."); |
| 2178 | return false; |
| 2179 | } |
| 2180 | |
| 2181 | if (h->table[sel].func) { |
| 2182 | upb_status_seterrmsg(&h->status_, |
| 2183 | "cannot change handler once it has been set."); |
| 2184 | return false; |
| 2185 | } |
| 2186 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2187 | if (attr) { |
| 2188 | set_attr = *attr; |
| 2189 | } |
| 2190 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2191 | /* Check that the given closure type matches the closure type that has been |
| 2192 | * established for this context (if any). */ |
| 2193 | closure_type = upb_handlerattr_closuretype(&set_attr); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2194 | |
| 2195 | if (type == UPB_HANDLER_STRING) { |
| 2196 | context_closure_type = returntype(h, f, UPB_HANDLER_STARTSTR); |
| 2197 | } else if (f && upb_fielddef_isseq(f) && |
| 2198 | type != UPB_HANDLER_STARTSEQ && |
| 2199 | type != UPB_HANDLER_ENDSEQ) { |
| 2200 | context_closure_type = returntype(h, f, UPB_HANDLER_STARTSEQ); |
| 2201 | } else { |
| 2202 | context_closure_type = &h->top_closure_type; |
| 2203 | } |
| 2204 | |
| 2205 | if (closure_type && *context_closure_type && |
| 2206 | closure_type != *context_closure_type) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2207 | /* TODO(haberman): better message for debugging. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 2208 | if (f) { |
| 2209 | upb_status_seterrf(&h->status_, |
| 2210 | "closure type does not match for field %s", |
| 2211 | upb_fielddef_name(f)); |
| 2212 | } else { |
| 2213 | upb_status_seterrmsg( |
| 2214 | &h->status_, "closure type does not match for message-level handler"); |
| 2215 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2216 | return false; |
| 2217 | } |
| 2218 | |
| 2219 | if (closure_type) |
| 2220 | *context_closure_type = closure_type; |
| 2221 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2222 | /* If this is a STARTSEQ or STARTSTR handler, check that the returned pointer |
| 2223 | * matches any pre-existing expectations about what type is expected. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2224 | if (type == UPB_HANDLER_STARTSEQ || type == UPB_HANDLER_STARTSTR) { |
| 2225 | const void *return_type = upb_handlerattr_returnclosuretype(&set_attr); |
| 2226 | const void *table_return_type = |
| 2227 | upb_handlerattr_returnclosuretype(&h->table[sel].attr); |
| 2228 | if (return_type && table_return_type && return_type != table_return_type) { |
| 2229 | upb_status_seterrmsg(&h->status_, "closure return type does not match"); |
| 2230 | return false; |
| 2231 | } |
| 2232 | |
| 2233 | if (table_return_type && !return_type) |
| 2234 | upb_handlerattr_setreturnclosuretype(&set_attr, table_return_type); |
| 2235 | } |
| 2236 | |
| 2237 | h->table[sel].func = (upb_func*)func; |
| 2238 | h->table[sel].attr = set_attr; |
| 2239 | return true; |
| 2240 | } |
| 2241 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2242 | /* Returns the effective closure type for this handler (which will propagate |
| 2243 | * from outer frames if this frame has no START* handler). Not implemented for |
| 2244 | * UPB_HANDLER_STRING at the moment since this is not needed. Returns NULL is |
| 2245 | * the effective closure type is unspecified (either no handler was registered |
| 2246 | * to specify it or the handler that was registered did not specify the closure |
| 2247 | * type). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2248 | const void *effective_closure_type(upb_handlers *h, const upb_fielddef *f, |
| 2249 | upb_handlertype_t type) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2250 | const void *ret; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2251 | upb_selector_t sel; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2252 | |
| 2253 | assert(type != UPB_HANDLER_STRING); |
| 2254 | ret = h->top_closure_type; |
| 2255 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2256 | if (upb_fielddef_isseq(f) && |
| 2257 | type != UPB_HANDLER_STARTSEQ && |
| 2258 | type != UPB_HANDLER_ENDSEQ && |
| 2259 | h->table[sel = handlers_getsel(h, f, UPB_HANDLER_STARTSEQ)].func) { |
| 2260 | ret = upb_handlerattr_returnclosuretype(&h->table[sel].attr); |
| 2261 | } |
| 2262 | |
| 2263 | if (type == UPB_HANDLER_STRING && |
| 2264 | h->table[sel = handlers_getsel(h, f, UPB_HANDLER_STARTSTR)].func) { |
| 2265 | ret = upb_handlerattr_returnclosuretype(&h->table[sel].attr); |
| 2266 | } |
| 2267 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2268 | /* The effective type of the submessage; not used yet. |
| 2269 | * if (type == SUBMESSAGE && |
| 2270 | * h->table[sel = handlers_getsel(h, f, UPB_HANDLER_STARTSUBMSG)].func) { |
| 2271 | * ret = upb_handlerattr_returnclosuretype(&h->table[sel].attr); |
| 2272 | * } */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2273 | |
| 2274 | return ret; |
| 2275 | } |
| 2276 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2277 | /* Checks whether the START* handler specified by f & type is missing even |
| 2278 | * though it is required to convert the established type of an outer frame |
| 2279 | * ("closure_type") into the established type of an inner frame (represented in |
| 2280 | * the return closure type of this handler's attr. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2281 | bool checkstart(upb_handlers *h, const upb_fielddef *f, upb_handlertype_t type, |
| 2282 | upb_status *status) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2283 | const void *closure_type; |
| 2284 | const upb_handlerattr *attr; |
| 2285 | const void *return_closure_type; |
| 2286 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2287 | upb_selector_t sel = handlers_getsel(h, f, type); |
| 2288 | if (h->table[sel].func) return true; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2289 | closure_type = effective_closure_type(h, f, type); |
| 2290 | attr = &h->table[sel].attr; |
| 2291 | return_closure_type = upb_handlerattr_returnclosuretype(attr); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2292 | if (closure_type && return_closure_type && |
| 2293 | closure_type != return_closure_type) { |
| 2294 | upb_status_seterrf(status, |
| 2295 | "expected start handler to return sub type for field %f", |
| 2296 | upb_fielddef_name(f)); |
| 2297 | return false; |
| 2298 | } |
| 2299 | return true; |
| 2300 | } |
| 2301 | |
| 2302 | /* Public interface ***********************************************************/ |
| 2303 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2304 | upb_handlers *upb_handlers_new(const upb_msgdef *md, const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2305 | int extra; |
| 2306 | upb_handlers *h; |
| 2307 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2308 | assert(upb_msgdef_isfrozen(md)); |
| 2309 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2310 | extra = sizeof(upb_handlers_tabent) * (md->selector_count - 1); |
| 2311 | h = calloc(sizeof(*h) + extra, 1); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2312 | if (!h) return NULL; |
| 2313 | |
| 2314 | h->msg = md; |
| 2315 | upb_msgdef_ref(h->msg, h); |
| 2316 | upb_status_clear(&h->status_); |
| 2317 | h->sub = calloc(md->submsg_field_count, sizeof(*h->sub)); |
| 2318 | if (!h->sub) goto oom; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2319 | if (!upb_refcounted_init(upb_handlers_upcast_mutable(h), &vtbl, owner)) |
| 2320 | goto oom; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2321 | if (!upb_inttable_init(&h->cleanup_, UPB_CTYPE_FPTR)) goto oom; |
| 2322 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2323 | /* calloc() above initialized all handlers to NULL. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2324 | return h; |
| 2325 | |
| 2326 | oom: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2327 | freehandlers(upb_handlers_upcast_mutable(h)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2328 | return NULL; |
| 2329 | } |
| 2330 | |
| 2331 | const upb_handlers *upb_handlers_newfrozen(const upb_msgdef *m, |
| 2332 | const void *owner, |
| 2333 | upb_handlers_callback *callback, |
| 2334 | const void *closure) { |
| 2335 | dfs_state state; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2336 | upb_handlers *ret; |
| 2337 | bool ok; |
| 2338 | upb_refcounted *r; |
| 2339 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2340 | state.callback = callback; |
| 2341 | state.closure = closure; |
| 2342 | if (!upb_inttable_init(&state.tab, UPB_CTYPE_PTR)) return NULL; |
| 2343 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2344 | ret = newformsg(m, owner, &state); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2345 | |
| 2346 | upb_inttable_uninit(&state.tab); |
| 2347 | if (!ret) return NULL; |
| 2348 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2349 | r = upb_handlers_upcast_mutable(ret); |
| 2350 | ok = upb_refcounted_freeze(&r, 1, NULL, UPB_MAX_HANDLER_DEPTH); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2351 | UPB_ASSERT_VAR(ok, ok); |
| 2352 | |
| 2353 | return ret; |
| 2354 | } |
| 2355 | |
| 2356 | const upb_status *upb_handlers_status(upb_handlers *h) { |
| 2357 | assert(!upb_handlers_isfrozen(h)); |
| 2358 | return &h->status_; |
| 2359 | } |
| 2360 | |
| 2361 | void upb_handlers_clearerr(upb_handlers *h) { |
| 2362 | assert(!upb_handlers_isfrozen(h)); |
| 2363 | upb_status_clear(&h->status_); |
| 2364 | } |
| 2365 | |
| 2366 | #define SETTER(name, handlerctype, handlertype) \ |
| 2367 | bool upb_handlers_set ## name(upb_handlers *h, const upb_fielddef *f, \ |
| 2368 | handlerctype func, upb_handlerattr *attr) { \ |
| 2369 | int32_t sel = trygetsel(h, f, handlertype); \ |
| 2370 | return doset(h, sel, f, handlertype, (upb_func*)func, attr); \ |
| 2371 | } |
| 2372 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2373 | SETTER(int32, upb_int32_handlerfunc*, UPB_HANDLER_INT32) |
| 2374 | SETTER(int64, upb_int64_handlerfunc*, UPB_HANDLER_INT64) |
| 2375 | SETTER(uint32, upb_uint32_handlerfunc*, UPB_HANDLER_UINT32) |
| 2376 | SETTER(uint64, upb_uint64_handlerfunc*, UPB_HANDLER_UINT64) |
| 2377 | SETTER(float, upb_float_handlerfunc*, UPB_HANDLER_FLOAT) |
| 2378 | SETTER(double, upb_double_handlerfunc*, UPB_HANDLER_DOUBLE) |
| 2379 | SETTER(bool, upb_bool_handlerfunc*, UPB_HANDLER_BOOL) |
| 2380 | SETTER(startstr, upb_startstr_handlerfunc*, UPB_HANDLER_STARTSTR) |
| 2381 | SETTER(string, upb_string_handlerfunc*, UPB_HANDLER_STRING) |
| 2382 | SETTER(endstr, upb_endfield_handlerfunc*, UPB_HANDLER_ENDSTR) |
| 2383 | SETTER(startseq, upb_startfield_handlerfunc*, UPB_HANDLER_STARTSEQ) |
| 2384 | SETTER(startsubmsg, upb_startfield_handlerfunc*, UPB_HANDLER_STARTSUBMSG) |
| 2385 | SETTER(endsubmsg, upb_endfield_handlerfunc*, UPB_HANDLER_ENDSUBMSG) |
| 2386 | SETTER(endseq, upb_endfield_handlerfunc*, UPB_HANDLER_ENDSEQ) |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2387 | |
| 2388 | #undef SETTER |
| 2389 | |
| 2390 | bool upb_handlers_setstartmsg(upb_handlers *h, upb_startmsg_handlerfunc *func, |
| 2391 | upb_handlerattr *attr) { |
| 2392 | return doset(h, UPB_STARTMSG_SELECTOR, NULL, UPB_HANDLER_INT32, |
| 2393 | (upb_func *)func, attr); |
| 2394 | } |
| 2395 | |
| 2396 | bool upb_handlers_setendmsg(upb_handlers *h, upb_endmsg_handlerfunc *func, |
| 2397 | upb_handlerattr *attr) { |
| 2398 | assert(!upb_handlers_isfrozen(h)); |
| 2399 | return doset(h, UPB_ENDMSG_SELECTOR, NULL, UPB_HANDLER_INT32, |
| 2400 | (upb_func *)func, attr); |
| 2401 | } |
| 2402 | |
| 2403 | bool upb_handlers_setsubhandlers(upb_handlers *h, const upb_fielddef *f, |
| 2404 | const upb_handlers *sub) { |
| 2405 | assert(sub); |
| 2406 | assert(!upb_handlers_isfrozen(h)); |
| 2407 | assert(upb_fielddef_issubmsg(f)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2408 | if (SUBH_F(h, f)) return false; /* Can't reset. */ |
| 2409 | if (upb_msgdef_upcast(upb_handlers_msgdef(sub)) != upb_fielddef_subdef(f)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2410 | return false; |
| 2411 | } |
| 2412 | SUBH_F(h, f) = sub; |
| 2413 | upb_ref2(sub, h); |
| 2414 | return true; |
| 2415 | } |
| 2416 | |
| 2417 | const upb_handlers *upb_handlers_getsubhandlers(const upb_handlers *h, |
| 2418 | const upb_fielddef *f) { |
| 2419 | assert(upb_fielddef_issubmsg(f)); |
| 2420 | return SUBH_F(h, f); |
| 2421 | } |
| 2422 | |
| 2423 | bool upb_handlers_getattr(const upb_handlers *h, upb_selector_t sel, |
| 2424 | upb_handlerattr *attr) { |
| 2425 | if (!upb_handlers_gethandler(h, sel)) |
| 2426 | return false; |
| 2427 | *attr = h->table[sel].attr; |
| 2428 | return true; |
| 2429 | } |
| 2430 | |
| 2431 | const upb_handlers *upb_handlers_getsubhandlers_sel(const upb_handlers *h, |
| 2432 | upb_selector_t sel) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2433 | /* STARTSUBMSG selector in sel is the field's selector base. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2434 | return SUBH(h, sel - UPB_STATIC_SELECTOR_COUNT); |
| 2435 | } |
| 2436 | |
| 2437 | const upb_msgdef *upb_handlers_msgdef(const upb_handlers *h) { return h->msg; } |
| 2438 | |
| 2439 | bool upb_handlers_addcleanup(upb_handlers *h, void *p, upb_handlerfree *func) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2440 | bool ok; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2441 | if (upb_inttable_lookupptr(&h->cleanup_, p, NULL)) { |
| 2442 | return false; |
| 2443 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2444 | ok = upb_inttable_insertptr(&h->cleanup_, p, upb_value_fptr(func)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2445 | UPB_ASSERT_VAR(ok, ok); |
| 2446 | return true; |
| 2447 | } |
| 2448 | |
| 2449 | |
| 2450 | /* "Static" methods ***********************************************************/ |
| 2451 | |
| 2452 | bool upb_handlers_freeze(upb_handlers *const*handlers, int n, upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2453 | /* TODO: verify we have a transitive closure. */ |
| 2454 | int i; |
| 2455 | for (i = 0; i < n; i++) { |
| 2456 | upb_msg_field_iter j; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2457 | upb_handlers *h = handlers[i]; |
| 2458 | |
| 2459 | if (!upb_ok(&h->status_)) { |
| 2460 | upb_status_seterrf(s, "handlers for message %s had error status: %s", |
| 2461 | upb_msgdef_fullname(upb_handlers_msgdef(h)), |
| 2462 | upb_status_errmsg(&h->status_)); |
| 2463 | return false; |
| 2464 | } |
| 2465 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2466 | /* Check that there are no closure mismatches due to missing Start* handlers |
| 2467 | * or subhandlers with different type-level types. */ |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 2468 | for(upb_msg_field_begin(&j, h->msg); |
| 2469 | !upb_msg_field_done(&j); |
| 2470 | upb_msg_field_next(&j)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2471 | |
| 2472 | const upb_fielddef *f = upb_msg_iter_field(&j); |
| 2473 | if (upb_fielddef_isseq(f)) { |
| 2474 | if (!checkstart(h, f, UPB_HANDLER_STARTSEQ, s)) |
| 2475 | return false; |
| 2476 | } |
| 2477 | |
| 2478 | if (upb_fielddef_isstring(f)) { |
| 2479 | if (!checkstart(h, f, UPB_HANDLER_STARTSTR, s)) |
| 2480 | return false; |
| 2481 | } |
| 2482 | |
| 2483 | if (upb_fielddef_issubmsg(f)) { |
| 2484 | bool hashandler = false; |
| 2485 | if (upb_handlers_gethandler( |
| 2486 | h, handlers_getsel(h, f, UPB_HANDLER_STARTSUBMSG)) || |
| 2487 | upb_handlers_gethandler( |
| 2488 | h, handlers_getsel(h, f, UPB_HANDLER_ENDSUBMSG))) { |
| 2489 | hashandler = true; |
| 2490 | } |
| 2491 | |
| 2492 | if (upb_fielddef_isseq(f) && |
| 2493 | (upb_handlers_gethandler( |
| 2494 | h, handlers_getsel(h, f, UPB_HANDLER_STARTSEQ)) || |
| 2495 | upb_handlers_gethandler( |
| 2496 | h, handlers_getsel(h, f, UPB_HANDLER_ENDSEQ)))) { |
| 2497 | hashandler = true; |
| 2498 | } |
| 2499 | |
| 2500 | if (hashandler && !upb_handlers_getsubhandlers(h, f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2501 | /* For now we add an empty subhandlers in this case. It makes the |
| 2502 | * decoder code generator simpler, because it only has to handle two |
| 2503 | * cases (submessage has handlers or not) as opposed to three |
| 2504 | * (submessage has handlers in enclosing message but no subhandlers). |
| 2505 | * |
| 2506 | * This makes parsing less efficient in the case that we want to |
| 2507 | * notice a submessage but skip its contents (like if we're testing |
| 2508 | * for submessage presence or counting the number of repeated |
| 2509 | * submessages). In this case we will end up parsing the submessage |
| 2510 | * field by field and throwing away the results for each, instead of |
| 2511 | * skipping the whole delimited thing at once. If this is an issue we |
| 2512 | * can revisit it, but do remember that this only arises when you have |
| 2513 | * handlers (startseq/startsubmsg/endsubmsg/endseq) set for the |
| 2514 | * submessage but no subhandlers. The uses cases for this are |
| 2515 | * limited. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2516 | upb_handlers *sub = upb_handlers_new(upb_fielddef_msgsubdef(f), &sub); |
| 2517 | upb_handlers_setsubhandlers(h, f, sub); |
| 2518 | upb_handlers_unref(sub, &sub); |
| 2519 | } |
| 2520 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2521 | /* TODO(haberman): check type of submessage. |
| 2522 | * This is slightly tricky; also consider whether we should check that |
| 2523 | * they match at setsubhandlers time. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2524 | } |
| 2525 | } |
| 2526 | } |
| 2527 | |
| 2528 | if (!upb_refcounted_freeze((upb_refcounted*const*)handlers, n, s, |
| 2529 | UPB_MAX_HANDLER_DEPTH)) { |
| 2530 | return false; |
| 2531 | } |
| 2532 | |
| 2533 | return true; |
| 2534 | } |
| 2535 | |
| 2536 | upb_handlertype_t upb_handlers_getprimitivehandlertype(const upb_fielddef *f) { |
| 2537 | switch (upb_fielddef_type(f)) { |
| 2538 | case UPB_TYPE_INT32: |
| 2539 | case UPB_TYPE_ENUM: return UPB_HANDLER_INT32; |
| 2540 | case UPB_TYPE_INT64: return UPB_HANDLER_INT64; |
| 2541 | case UPB_TYPE_UINT32: return UPB_HANDLER_UINT32; |
| 2542 | case UPB_TYPE_UINT64: return UPB_HANDLER_UINT64; |
| 2543 | case UPB_TYPE_FLOAT: return UPB_HANDLER_FLOAT; |
| 2544 | case UPB_TYPE_DOUBLE: return UPB_HANDLER_DOUBLE; |
| 2545 | case UPB_TYPE_BOOL: return UPB_HANDLER_BOOL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2546 | default: assert(false); return -1; /* Invalid input. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2547 | } |
| 2548 | } |
| 2549 | |
| 2550 | bool upb_handlers_getselector(const upb_fielddef *f, upb_handlertype_t type, |
| 2551 | upb_selector_t *s) { |
| 2552 | switch (type) { |
| 2553 | case UPB_HANDLER_INT32: |
| 2554 | case UPB_HANDLER_INT64: |
| 2555 | case UPB_HANDLER_UINT32: |
| 2556 | case UPB_HANDLER_UINT64: |
| 2557 | case UPB_HANDLER_FLOAT: |
| 2558 | case UPB_HANDLER_DOUBLE: |
| 2559 | case UPB_HANDLER_BOOL: |
| 2560 | if (!upb_fielddef_isprimitive(f) || |
| 2561 | upb_handlers_getprimitivehandlertype(f) != type) |
| 2562 | return false; |
| 2563 | *s = f->selector_base; |
| 2564 | break; |
| 2565 | case UPB_HANDLER_STRING: |
| 2566 | if (upb_fielddef_isstring(f)) { |
| 2567 | *s = f->selector_base; |
| 2568 | } else if (upb_fielddef_lazy(f)) { |
| 2569 | *s = f->selector_base + 3; |
| 2570 | } else { |
| 2571 | return false; |
| 2572 | } |
| 2573 | break; |
| 2574 | case UPB_HANDLER_STARTSTR: |
| 2575 | if (upb_fielddef_isstring(f) || upb_fielddef_lazy(f)) { |
| 2576 | *s = f->selector_base + 1; |
| 2577 | } else { |
| 2578 | return false; |
| 2579 | } |
| 2580 | break; |
| 2581 | case UPB_HANDLER_ENDSTR: |
| 2582 | if (upb_fielddef_isstring(f) || upb_fielddef_lazy(f)) { |
| 2583 | *s = f->selector_base + 2; |
| 2584 | } else { |
| 2585 | return false; |
| 2586 | } |
| 2587 | break; |
| 2588 | case UPB_HANDLER_STARTSEQ: |
| 2589 | if (!upb_fielddef_isseq(f)) return false; |
| 2590 | *s = f->selector_base - 2; |
| 2591 | break; |
| 2592 | case UPB_HANDLER_ENDSEQ: |
| 2593 | if (!upb_fielddef_isseq(f)) return false; |
| 2594 | *s = f->selector_base - 1; |
| 2595 | break; |
| 2596 | case UPB_HANDLER_STARTSUBMSG: |
| 2597 | if (!upb_fielddef_issubmsg(f)) return false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2598 | /* Selectors for STARTSUBMSG are at the beginning of the table so that the |
| 2599 | * selector can also be used as an index into the "sub" array of |
| 2600 | * subhandlers. The indexes for the two into these two tables are the |
| 2601 | * same, except that in the handler table the static selectors come first. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2602 | *s = f->index_ + UPB_STATIC_SELECTOR_COUNT; |
| 2603 | break; |
| 2604 | case UPB_HANDLER_ENDSUBMSG: |
| 2605 | if (!upb_fielddef_issubmsg(f)) return false; |
| 2606 | *s = f->selector_base; |
| 2607 | break; |
| 2608 | } |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 2609 | assert((size_t)*s < upb_fielddef_containingtype(f)->selector_count); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2610 | return true; |
| 2611 | } |
| 2612 | |
| 2613 | uint32_t upb_handlers_selectorbaseoffset(const upb_fielddef *f) { |
| 2614 | return upb_fielddef_isseq(f) ? 2 : 0; |
| 2615 | } |
| 2616 | |
| 2617 | uint32_t upb_handlers_selectorcount(const upb_fielddef *f) { |
| 2618 | uint32_t ret = 1; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2619 | if (upb_fielddef_isseq(f)) ret += 2; /* STARTSEQ/ENDSEQ */ |
| 2620 | if (upb_fielddef_isstring(f)) ret += 2; /* [STRING]/STARTSTR/ENDSTR */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2621 | if (upb_fielddef_issubmsg(f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2622 | /* ENDSUBMSG (STARTSUBMSG is at table beginning) */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2623 | ret += 0; |
| 2624 | if (upb_fielddef_lazy(f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2625 | /* STARTSTR/ENDSTR/STRING (for lazy) */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2626 | ret += 3; |
| 2627 | } |
| 2628 | } |
| 2629 | return ret; |
| 2630 | } |
| 2631 | |
| 2632 | |
| 2633 | /* upb_handlerattr ************************************************************/ |
| 2634 | |
| 2635 | void upb_handlerattr_init(upb_handlerattr *attr) { |
| 2636 | upb_handlerattr from = UPB_HANDLERATTR_INITIALIZER; |
| 2637 | memcpy(attr, &from, sizeof(*attr)); |
| 2638 | } |
| 2639 | |
| 2640 | void upb_handlerattr_uninit(upb_handlerattr *attr) { |
| 2641 | UPB_UNUSED(attr); |
| 2642 | } |
| 2643 | |
| 2644 | bool upb_handlerattr_sethandlerdata(upb_handlerattr *attr, const void *hd) { |
| 2645 | attr->handler_data_ = hd; |
| 2646 | return true; |
| 2647 | } |
| 2648 | |
| 2649 | bool upb_handlerattr_setclosuretype(upb_handlerattr *attr, const void *type) { |
| 2650 | attr->closure_type_ = type; |
| 2651 | return true; |
| 2652 | } |
| 2653 | |
| 2654 | const void *upb_handlerattr_closuretype(const upb_handlerattr *attr) { |
| 2655 | return attr->closure_type_; |
| 2656 | } |
| 2657 | |
| 2658 | bool upb_handlerattr_setreturnclosuretype(upb_handlerattr *attr, |
| 2659 | const void *type) { |
| 2660 | attr->return_closure_type_ = type; |
| 2661 | return true; |
| 2662 | } |
| 2663 | |
| 2664 | const void *upb_handlerattr_returnclosuretype(const upb_handlerattr *attr) { |
| 2665 | return attr->return_closure_type_; |
| 2666 | } |
| 2667 | |
| 2668 | bool upb_handlerattr_setalwaysok(upb_handlerattr *attr, bool alwaysok) { |
| 2669 | attr->alwaysok_ = alwaysok; |
| 2670 | return true; |
| 2671 | } |
| 2672 | |
| 2673 | bool upb_handlerattr_alwaysok(const upb_handlerattr *attr) { |
| 2674 | return attr->alwaysok_; |
| 2675 | } |
| 2676 | |
| 2677 | /* upb_bufhandle **************************************************************/ |
| 2678 | |
| 2679 | size_t upb_bufhandle_objofs(const upb_bufhandle *h) { |
| 2680 | return h->objofs_; |
| 2681 | } |
| 2682 | |
| 2683 | /* upb_byteshandler ***********************************************************/ |
| 2684 | |
| 2685 | void upb_byteshandler_init(upb_byteshandler* h) { |
| 2686 | memset(h, 0, sizeof(*h)); |
| 2687 | } |
| 2688 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2689 | /* For when we support handlerfree callbacks. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2690 | void upb_byteshandler_uninit(upb_byteshandler* h) { |
| 2691 | UPB_UNUSED(h); |
| 2692 | } |
| 2693 | |
| 2694 | bool upb_byteshandler_setstartstr(upb_byteshandler *h, |
| 2695 | upb_startstr_handlerfunc *func, void *d) { |
| 2696 | h->table[UPB_STARTSTR_SELECTOR].func = (upb_func*)func; |
| 2697 | h->table[UPB_STARTSTR_SELECTOR].attr.handler_data_ = d; |
| 2698 | return true; |
| 2699 | } |
| 2700 | |
| 2701 | bool upb_byteshandler_setstring(upb_byteshandler *h, |
| 2702 | upb_string_handlerfunc *func, void *d) { |
| 2703 | h->table[UPB_STRING_SELECTOR].func = (upb_func*)func; |
| 2704 | h->table[UPB_STRING_SELECTOR].attr.handler_data_ = d; |
| 2705 | return true; |
| 2706 | } |
| 2707 | |
| 2708 | bool upb_byteshandler_setendstr(upb_byteshandler *h, |
| 2709 | upb_endfield_handlerfunc *func, void *d) { |
| 2710 | h->table[UPB_ENDSTR_SELECTOR].func = (upb_func*)func; |
| 2711 | h->table[UPB_ENDSTR_SELECTOR].attr.handler_data_ = d; |
| 2712 | return true; |
| 2713 | } |
| 2714 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 2715 | ** upb::RefCounted Implementation |
| 2716 | ** |
| 2717 | ** Our key invariants are: |
| 2718 | ** 1. reference cycles never span groups |
| 2719 | ** 2. for ref2(to, from), we increment to's count iff group(from) != group(to) |
| 2720 | ** |
| 2721 | ** The previous two are how we avoid leaking cycles. Other important |
| 2722 | ** invariants are: |
| 2723 | ** 3. for mutable objects "from" and "to", if there exists a ref2(to, from) |
| 2724 | ** this implies group(from) == group(to). (In practice, what we implement |
| 2725 | ** is even stronger; "from" and "to" will share a group if there has *ever* |
| 2726 | ** been a ref2(to, from), but all that is necessary for correctness is the |
| 2727 | ** weaker one). |
| 2728 | ** 4. mutable and immutable objects are never in the same group. |
| 2729 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2730 | |
| 2731 | |
| 2732 | #include <setjmp.h> |
| 2733 | #include <stdlib.h> |
| 2734 | |
| 2735 | static void freeobj(upb_refcounted *o); |
| 2736 | |
| 2737 | const char untracked_val; |
| 2738 | const void *UPB_UNTRACKED_REF = &untracked_val; |
| 2739 | |
| 2740 | /* arch-specific atomic primitives *******************************************/ |
| 2741 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2742 | #ifdef UPB_THREAD_UNSAFE /*---------------------------------------------------*/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2743 | |
| 2744 | static void atomic_inc(uint32_t *a) { (*a)++; } |
| 2745 | static bool atomic_dec(uint32_t *a) { return --(*a) == 0; } |
| 2746 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2747 | #elif defined(__GNUC__) || defined(__clang__) /*------------------------------*/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2748 | |
| 2749 | static void atomic_inc(uint32_t *a) { __sync_fetch_and_add(a, 1); } |
| 2750 | static bool atomic_dec(uint32_t *a) { return __sync_sub_and_fetch(a, 1) == 0; } |
| 2751 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2752 | #elif defined(WIN32) /*-------------------------------------------------------*/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2753 | |
| 2754 | #include <Windows.h> |
| 2755 | |
| 2756 | static void atomic_inc(upb_atomic_t *a) { InterlockedIncrement(&a->val); } |
| 2757 | static bool atomic_dec(upb_atomic_t *a) { |
| 2758 | return InterlockedDecrement(&a->val) == 0; |
| 2759 | } |
| 2760 | |
| 2761 | #else |
| 2762 | #error Atomic primitives not defined for your platform/CPU. \ |
| 2763 | Implement them or compile with UPB_THREAD_UNSAFE. |
| 2764 | #endif |
| 2765 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2766 | /* All static objects point to this refcount. |
| 2767 | * It is special-cased in ref/unref below. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2768 | uint32_t static_refcount = -1; |
| 2769 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2770 | /* We can avoid atomic ops for statically-declared objects. |
| 2771 | * This is a minor optimization but nice since we can avoid degrading under |
| 2772 | * contention in this case. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2773 | |
| 2774 | static void refgroup(uint32_t *group) { |
| 2775 | if (group != &static_refcount) |
| 2776 | atomic_inc(group); |
| 2777 | } |
| 2778 | |
| 2779 | static bool unrefgroup(uint32_t *group) { |
| 2780 | if (group == &static_refcount) { |
| 2781 | return false; |
| 2782 | } else { |
| 2783 | return atomic_dec(group); |
| 2784 | } |
| 2785 | } |
| 2786 | |
| 2787 | |
| 2788 | /* Reference tracking (debug only) ********************************************/ |
| 2789 | |
| 2790 | #ifdef UPB_DEBUG_REFS |
| 2791 | |
| 2792 | #ifdef UPB_THREAD_UNSAFE |
| 2793 | |
| 2794 | static void upb_lock() {} |
| 2795 | static void upb_unlock() {} |
| 2796 | |
| 2797 | #else |
| 2798 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2799 | /* User must define functions that lock/unlock a global mutex and link this |
| 2800 | * file against them. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2801 | void upb_lock(); |
| 2802 | void upb_unlock(); |
| 2803 | |
| 2804 | #endif |
| 2805 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2806 | /* UPB_DEBUG_REFS mode counts on being able to malloc() memory in some |
| 2807 | * code-paths that can normally never fail, like upb_refcounted_ref(). Since |
| 2808 | * we have no way to propagage out-of-memory errors back to the user, and since |
| 2809 | * these errors can only occur in UPB_DEBUG_REFS mode, we immediately fail. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2810 | #define CHECK_OOM(predicate) if (!(predicate)) { assert(predicate); exit(1); } |
| 2811 | |
| 2812 | typedef struct { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2813 | int count; /* How many refs there are (duplicates only allowed for ref2). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2814 | bool is_ref2; |
| 2815 | } trackedref; |
| 2816 | |
| 2817 | static trackedref *trackedref_new(bool is_ref2) { |
| 2818 | trackedref *ret = malloc(sizeof(*ret)); |
| 2819 | CHECK_OOM(ret); |
| 2820 | ret->count = 1; |
| 2821 | ret->is_ref2 = is_ref2; |
| 2822 | return ret; |
| 2823 | } |
| 2824 | |
| 2825 | static void track(const upb_refcounted *r, const void *owner, bool ref2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2826 | upb_value v; |
| 2827 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2828 | assert(owner); |
| 2829 | if (owner == UPB_UNTRACKED_REF) return; |
| 2830 | |
| 2831 | upb_lock(); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2832 | if (upb_inttable_lookupptr(r->refs, owner, &v)) { |
| 2833 | trackedref *ref = upb_value_getptr(v); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2834 | /* Since we allow multiple ref2's for the same to/from pair without |
| 2835 | * allocating separate memory for each one, we lose the fine-grained |
| 2836 | * tracking behavior we get with regular refs. Since ref2s only happen |
| 2837 | * inside upb, we'll accept this limitation until/unless there is a really |
| 2838 | * difficult upb-internal bug that can't be figured out without it. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2839 | assert(ref2); |
| 2840 | assert(ref->is_ref2); |
| 2841 | ref->count++; |
| 2842 | } else { |
| 2843 | trackedref *ref = trackedref_new(ref2); |
| 2844 | bool ok = upb_inttable_insertptr(r->refs, owner, upb_value_ptr(ref)); |
| 2845 | CHECK_OOM(ok); |
| 2846 | if (ref2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2847 | /* We know this cast is safe when it is a ref2, because it's coming from |
| 2848 | * another refcounted object. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2849 | const upb_refcounted *from = owner; |
| 2850 | assert(!upb_inttable_lookupptr(from->ref2s, r, NULL)); |
| 2851 | ok = upb_inttable_insertptr(from->ref2s, r, upb_value_ptr(NULL)); |
| 2852 | CHECK_OOM(ok); |
| 2853 | } |
| 2854 | } |
| 2855 | upb_unlock(); |
| 2856 | } |
| 2857 | |
| 2858 | static void untrack(const upb_refcounted *r, const void *owner, bool ref2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2859 | upb_value v; |
| 2860 | bool found; |
| 2861 | trackedref *ref; |
| 2862 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2863 | assert(owner); |
| 2864 | if (owner == UPB_UNTRACKED_REF) return; |
| 2865 | |
| 2866 | upb_lock(); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2867 | found = upb_inttable_lookupptr(r->refs, owner, &v); |
| 2868 | /* This assert will fail if an owner attempts to release a ref it didn't have. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2869 | UPB_ASSERT_VAR(found, found); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2870 | ref = upb_value_getptr(v); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2871 | assert(ref->is_ref2 == ref2); |
| 2872 | if (--ref->count == 0) { |
| 2873 | free(ref); |
| 2874 | upb_inttable_removeptr(r->refs, owner, NULL); |
| 2875 | if (ref2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2876 | /* We know this cast is safe when it is a ref2, because it's coming from |
| 2877 | * another refcounted object. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2878 | const upb_refcounted *from = owner; |
| 2879 | bool removed = upb_inttable_removeptr(from->ref2s, r, NULL); |
| 2880 | assert(removed); |
| 2881 | } |
| 2882 | } |
| 2883 | upb_unlock(); |
| 2884 | } |
| 2885 | |
| 2886 | static void checkref(const upb_refcounted *r, const void *owner, bool ref2) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2887 | upb_value v; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2888 | bool found; |
| 2889 | trackedref *ref; |
| 2890 | |
| 2891 | upb_lock(); |
| 2892 | found = upb_inttable_lookupptr(r->refs, owner, &v); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2893 | UPB_ASSERT_VAR(found, found); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2894 | ref = upb_value_getptr(v); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2895 | assert(ref->is_ref2 == ref2); |
| 2896 | upb_unlock(); |
| 2897 | } |
| 2898 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2899 | /* Populates the given UPB_CTYPE_INT32 inttable with counts of ref2's that |
| 2900 | * originate from the given owner. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2901 | static void getref2s(const upb_refcounted *owner, upb_inttable *tab) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2902 | upb_inttable_iter i; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2903 | |
| 2904 | upb_lock(); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2905 | upb_inttable_begin(&i, owner->ref2s); |
| 2906 | for(; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2907 | upb_value v; |
| 2908 | upb_value count; |
| 2909 | trackedref *ref; |
| 2910 | bool ok; |
| 2911 | bool found; |
| 2912 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2913 | upb_refcounted *to = (upb_refcounted*)upb_inttable_iter_key(&i); |
| 2914 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2915 | /* To get the count we need to look in the target's table. */ |
| 2916 | found = upb_inttable_lookupptr(to->refs, owner, &v); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2917 | assert(found); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2918 | ref = upb_value_getptr(v); |
| 2919 | count = upb_value_int32(ref->count); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2920 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2921 | ok = upb_inttable_insertptr(tab, to, count); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2922 | CHECK_OOM(ok); |
| 2923 | } |
| 2924 | upb_unlock(); |
| 2925 | } |
| 2926 | |
| 2927 | typedef struct { |
| 2928 | upb_inttable ref2; |
| 2929 | const upb_refcounted *obj; |
| 2930 | } check_state; |
| 2931 | |
| 2932 | static void visit_check(const upb_refcounted *obj, const upb_refcounted *subobj, |
| 2933 | void *closure) { |
| 2934 | check_state *s = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2935 | upb_inttable *ref2 = &s->ref2; |
| 2936 | upb_value v; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2937 | bool removed; |
| 2938 | int32_t newcount; |
| 2939 | |
| 2940 | assert(obj == s->obj); |
| 2941 | assert(subobj); |
| 2942 | removed = upb_inttable_removeptr(ref2, subobj, &v); |
| 2943 | /* The following assertion will fail if the visit() function visits a subobj |
| 2944 | * that it did not have a ref2 on, or visits the same subobj too many times. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2945 | assert(removed); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2946 | newcount = upb_value_getint32(v) - 1; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2947 | if (newcount > 0) { |
| 2948 | upb_inttable_insert(ref2, (uintptr_t)subobj, upb_value_int32(newcount)); |
| 2949 | } |
| 2950 | } |
| 2951 | |
| 2952 | static void visit(const upb_refcounted *r, upb_refcounted_visit *v, |
| 2953 | void *closure) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2954 | bool ok; |
| 2955 | |
| 2956 | /* In DEBUG_REFS mode we know what existing ref2 refs there are, so we know |
| 2957 | * exactly the set of nodes that visit() should visit. So we verify visit()'s |
| 2958 | * correctness here. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2959 | check_state state; |
| 2960 | state.obj = r; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2961 | ok = upb_inttable_init(&state.ref2, UPB_CTYPE_INT32); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2962 | CHECK_OOM(ok); |
| 2963 | getref2s(r, &state.ref2); |
| 2964 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2965 | /* This should visit any children in the ref2 table. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2966 | if (r->vtbl->visit) r->vtbl->visit(r, visit_check, &state); |
| 2967 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 2968 | /* This assertion will fail if the visit() function missed any children. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 2969 | assert(upb_inttable_count(&state.ref2) == 0); |
| 2970 | upb_inttable_uninit(&state.ref2); |
| 2971 | if (r->vtbl->visit) r->vtbl->visit(r, v, closure); |
| 2972 | } |
| 2973 | |
| 2974 | static bool trackinit(upb_refcounted *r) { |
| 2975 | r->refs = malloc(sizeof(*r->refs)); |
| 2976 | r->ref2s = malloc(sizeof(*r->ref2s)); |
| 2977 | if (!r->refs || !r->ref2s) goto err1; |
| 2978 | |
| 2979 | if (!upb_inttable_init(r->refs, UPB_CTYPE_PTR)) goto err1; |
| 2980 | if (!upb_inttable_init(r->ref2s, UPB_CTYPE_PTR)) goto err2; |
| 2981 | return true; |
| 2982 | |
| 2983 | err2: |
| 2984 | upb_inttable_uninit(r->refs); |
| 2985 | err1: |
| 2986 | free(r->refs); |
| 2987 | free(r->ref2s); |
| 2988 | return false; |
| 2989 | } |
| 2990 | |
| 2991 | static void trackfree(const upb_refcounted *r) { |
| 2992 | upb_inttable_uninit(r->refs); |
| 2993 | upb_inttable_uninit(r->ref2s); |
| 2994 | free(r->refs); |
| 2995 | free(r->ref2s); |
| 2996 | } |
| 2997 | |
| 2998 | #else |
| 2999 | |
| 3000 | static void track(const upb_refcounted *r, const void *owner, bool ref2) { |
| 3001 | UPB_UNUSED(r); |
| 3002 | UPB_UNUSED(owner); |
| 3003 | UPB_UNUSED(ref2); |
| 3004 | } |
| 3005 | |
| 3006 | static void untrack(const upb_refcounted *r, const void *owner, bool ref2) { |
| 3007 | UPB_UNUSED(r); |
| 3008 | UPB_UNUSED(owner); |
| 3009 | UPB_UNUSED(ref2); |
| 3010 | } |
| 3011 | |
| 3012 | static void checkref(const upb_refcounted *r, const void *owner, bool ref2) { |
| 3013 | UPB_UNUSED(r); |
| 3014 | UPB_UNUSED(owner); |
| 3015 | UPB_UNUSED(ref2); |
| 3016 | } |
| 3017 | |
| 3018 | static bool trackinit(upb_refcounted *r) { |
| 3019 | UPB_UNUSED(r); |
| 3020 | return true; |
| 3021 | } |
| 3022 | |
| 3023 | static void trackfree(const upb_refcounted *r) { |
| 3024 | UPB_UNUSED(r); |
| 3025 | } |
| 3026 | |
| 3027 | static void visit(const upb_refcounted *r, upb_refcounted_visit *v, |
| 3028 | void *closure) { |
| 3029 | if (r->vtbl->visit) r->vtbl->visit(r, v, closure); |
| 3030 | } |
| 3031 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3032 | #endif /* UPB_DEBUG_REFS */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3033 | |
| 3034 | |
| 3035 | /* freeze() *******************************************************************/ |
| 3036 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3037 | /* The freeze() operation is by far the most complicated part of this scheme. |
| 3038 | * We compute strongly-connected components and then mutate the graph such that |
| 3039 | * we preserve the invariants documented at the top of this file. And we must |
| 3040 | * handle out-of-memory errors gracefully (without leaving the graph |
| 3041 | * inconsistent), which adds to the fun. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3042 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3043 | /* The state used by the freeze operation (shared across many functions). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3044 | typedef struct { |
| 3045 | int depth; |
| 3046 | int maxdepth; |
| 3047 | uint64_t index; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3048 | /* Maps upb_refcounted* -> attributes (color, etc). attr layout varies by |
| 3049 | * color. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3050 | upb_inttable objattr; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3051 | upb_inttable stack; /* stack of upb_refcounted* for Tarjan's algorithm. */ |
| 3052 | upb_inttable groups; /* array of uint32_t*, malloc'd refcounts for new groups */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3053 | upb_status *status; |
| 3054 | jmp_buf err; |
| 3055 | } tarjan; |
| 3056 | |
| 3057 | static void release_ref2(const upb_refcounted *obj, |
| 3058 | const upb_refcounted *subobj, |
| 3059 | void *closure); |
| 3060 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3061 | /* Node attributes -----------------------------------------------------------*/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3062 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3063 | /* After our analysis phase all nodes will be either GRAY or WHITE. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3064 | |
| 3065 | typedef enum { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3066 | BLACK = 0, /* Object has not been seen. */ |
| 3067 | GRAY, /* Object has been found via a refgroup but may not be reachable. */ |
| 3068 | GREEN, /* Object is reachable and is currently on the Tarjan stack. */ |
| 3069 | WHITE /* Object is reachable and has been assigned a group (SCC). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3070 | } color_t; |
| 3071 | |
| 3072 | UPB_NORETURN static void err(tarjan *t) { longjmp(t->err, 1); } |
| 3073 | UPB_NORETURN static void oom(tarjan *t) { |
| 3074 | upb_status_seterrmsg(t->status, "out of memory"); |
| 3075 | err(t); |
| 3076 | } |
| 3077 | |
| 3078 | static uint64_t trygetattr(const tarjan *t, const upb_refcounted *r) { |
| 3079 | upb_value v; |
| 3080 | return upb_inttable_lookupptr(&t->objattr, r, &v) ? |
| 3081 | upb_value_getuint64(v) : 0; |
| 3082 | } |
| 3083 | |
| 3084 | static uint64_t getattr(const tarjan *t, const upb_refcounted *r) { |
| 3085 | upb_value v; |
| 3086 | bool found = upb_inttable_lookupptr(&t->objattr, r, &v); |
| 3087 | UPB_ASSERT_VAR(found, found); |
| 3088 | return upb_value_getuint64(v); |
| 3089 | } |
| 3090 | |
| 3091 | static void setattr(tarjan *t, const upb_refcounted *r, uint64_t attr) { |
| 3092 | upb_inttable_removeptr(&t->objattr, r, NULL); |
| 3093 | upb_inttable_insertptr(&t->objattr, r, upb_value_uint64(attr)); |
| 3094 | } |
| 3095 | |
| 3096 | static color_t color(tarjan *t, const upb_refcounted *r) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3097 | return trygetattr(t, r) & 0x3; /* Color is always stored in the low 2 bits. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3098 | } |
| 3099 | |
| 3100 | static void set_gray(tarjan *t, const upb_refcounted *r) { |
| 3101 | assert(color(t, r) == BLACK); |
| 3102 | setattr(t, r, GRAY); |
| 3103 | } |
| 3104 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3105 | /* Pushes an obj onto the Tarjan stack and sets it to GREEN. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3106 | static void push(tarjan *t, const upb_refcounted *r) { |
| 3107 | assert(color(t, r) == BLACK || color(t, r) == GRAY); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3108 | /* This defines the attr layout for the GREEN state. "index" and "lowlink" |
| 3109 | * get 31 bits, which is plenty (limit of 2B objects frozen at a time). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3110 | setattr(t, r, GREEN | (t->index << 2) | (t->index << 33)); |
| 3111 | if (++t->index == 0x80000000) { |
| 3112 | upb_status_seterrmsg(t->status, "too many objects to freeze"); |
| 3113 | err(t); |
| 3114 | } |
| 3115 | upb_inttable_push(&t->stack, upb_value_ptr((void*)r)); |
| 3116 | } |
| 3117 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3118 | /* Pops an obj from the Tarjan stack and sets it to WHITE, with a ptr to its |
| 3119 | * SCC group. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3120 | static upb_refcounted *pop(tarjan *t) { |
| 3121 | upb_refcounted *r = upb_value_getptr(upb_inttable_pop(&t->stack)); |
| 3122 | assert(color(t, r) == GREEN); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3123 | /* This defines the attr layout for nodes in the WHITE state. |
| 3124 | * Top of group stack is [group, NULL]; we point at group. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3125 | setattr(t, r, WHITE | (upb_inttable_count(&t->groups) - 2) << 8); |
| 3126 | return r; |
| 3127 | } |
| 3128 | |
| 3129 | static void tarjan_newgroup(tarjan *t) { |
| 3130 | uint32_t *group = malloc(sizeof(*group)); |
| 3131 | if (!group) oom(t); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3132 | /* Push group and empty group leader (we'll fill in leader later). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3133 | if (!upb_inttable_push(&t->groups, upb_value_ptr(group)) || |
| 3134 | !upb_inttable_push(&t->groups, upb_value_ptr(NULL))) { |
| 3135 | free(group); |
| 3136 | oom(t); |
| 3137 | } |
| 3138 | *group = 0; |
| 3139 | } |
| 3140 | |
| 3141 | static uint32_t idx(tarjan *t, const upb_refcounted *r) { |
| 3142 | assert(color(t, r) == GREEN); |
| 3143 | return (getattr(t, r) >> 2) & 0x7FFFFFFF; |
| 3144 | } |
| 3145 | |
| 3146 | static uint32_t lowlink(tarjan *t, const upb_refcounted *r) { |
| 3147 | if (color(t, r) == GREEN) { |
| 3148 | return getattr(t, r) >> 33; |
| 3149 | } else { |
| 3150 | return UINT32_MAX; |
| 3151 | } |
| 3152 | } |
| 3153 | |
| 3154 | static void set_lowlink(tarjan *t, const upb_refcounted *r, uint32_t lowlink) { |
| 3155 | assert(color(t, r) == GREEN); |
| 3156 | setattr(t, r, ((uint64_t)lowlink << 33) | (getattr(t, r) & 0x1FFFFFFFF)); |
| 3157 | } |
| 3158 | |
| 3159 | static uint32_t *group(tarjan *t, upb_refcounted *r) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3160 | uint64_t groupnum; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3161 | upb_value v; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3162 | bool found; |
| 3163 | |
| 3164 | assert(color(t, r) == WHITE); |
| 3165 | groupnum = getattr(t, r) >> 8; |
| 3166 | found = upb_inttable_lookup(&t->groups, groupnum, &v); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3167 | UPB_ASSERT_VAR(found, found); |
| 3168 | return upb_value_getptr(v); |
| 3169 | } |
| 3170 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3171 | /* If the group leader for this object's group has not previously been set, |
| 3172 | * the given object is assigned to be its leader. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3173 | static upb_refcounted *groupleader(tarjan *t, upb_refcounted *r) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3174 | uint64_t leader_slot; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3175 | upb_value v; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3176 | bool found; |
| 3177 | |
| 3178 | assert(color(t, r) == WHITE); |
| 3179 | leader_slot = (getattr(t, r) >> 8) + 1; |
| 3180 | found = upb_inttable_lookup(&t->groups, leader_slot, &v); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3181 | UPB_ASSERT_VAR(found, found); |
| 3182 | if (upb_value_getptr(v)) { |
| 3183 | return upb_value_getptr(v); |
| 3184 | } else { |
| 3185 | upb_inttable_remove(&t->groups, leader_slot, NULL); |
| 3186 | upb_inttable_insert(&t->groups, leader_slot, upb_value_ptr(r)); |
| 3187 | return r; |
| 3188 | } |
| 3189 | } |
| 3190 | |
| 3191 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3192 | /* Tarjan's algorithm --------------------------------------------------------*/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3193 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3194 | /* See: |
| 3195 | * http://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3196 | static void do_tarjan(const upb_refcounted *obj, tarjan *t); |
| 3197 | |
| 3198 | static void tarjan_visit(const upb_refcounted *obj, |
| 3199 | const upb_refcounted *subobj, |
| 3200 | void *closure) { |
| 3201 | tarjan *t = closure; |
| 3202 | if (++t->depth > t->maxdepth) { |
| 3203 | upb_status_seterrf(t->status, "graph too deep to freeze (%d)", t->maxdepth); |
| 3204 | err(t); |
| 3205 | } else if (subobj->is_frozen || color(t, subobj) == WHITE) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3206 | /* Do nothing: we don't want to visit or color already-frozen nodes, |
| 3207 | * and WHITE nodes have already been assigned a SCC. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3208 | } else if (color(t, subobj) < GREEN) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3209 | /* Subdef has not yet been visited; recurse on it. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3210 | do_tarjan(subobj, t); |
| 3211 | set_lowlink(t, obj, UPB_MIN(lowlink(t, obj), lowlink(t, subobj))); |
| 3212 | } else if (color(t, subobj) == GREEN) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3213 | /* Subdef is in the stack and hence in the current SCC. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3214 | set_lowlink(t, obj, UPB_MIN(lowlink(t, obj), idx(t, subobj))); |
| 3215 | } |
| 3216 | --t->depth; |
| 3217 | } |
| 3218 | |
| 3219 | static void do_tarjan(const upb_refcounted *obj, tarjan *t) { |
| 3220 | if (color(t, obj) == BLACK) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3221 | /* We haven't seen this object's group; mark the whole group GRAY. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3222 | const upb_refcounted *o = obj; |
| 3223 | do { set_gray(t, o); } while ((o = o->next) != obj); |
| 3224 | } |
| 3225 | |
| 3226 | push(t, obj); |
| 3227 | visit(obj, tarjan_visit, t); |
| 3228 | if (lowlink(t, obj) == idx(t, obj)) { |
| 3229 | tarjan_newgroup(t); |
| 3230 | while (pop(t) != obj) |
| 3231 | ; |
| 3232 | } |
| 3233 | } |
| 3234 | |
| 3235 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3236 | /* freeze() ------------------------------------------------------------------*/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3237 | |
| 3238 | static void crossref(const upb_refcounted *r, const upb_refcounted *subobj, |
| 3239 | void *_t) { |
| 3240 | tarjan *t = _t; |
| 3241 | assert(color(t, r) > BLACK); |
| 3242 | if (color(t, subobj) > BLACK && r->group != subobj->group) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3243 | /* Previously this ref was not reflected in subobj->group because they |
| 3244 | * were in the same group; now that they are split a ref must be taken. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3245 | refgroup(subobj->group); |
| 3246 | } |
| 3247 | } |
| 3248 | |
| 3249 | static bool freeze(upb_refcounted *const*roots, int n, upb_status *s, |
| 3250 | int maxdepth) { |
| 3251 | volatile bool ret = false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3252 | int i; |
| 3253 | upb_inttable_iter iter; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3254 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3255 | /* We run in two passes so that we can allocate all memory before performing |
| 3256 | * any mutation of the input -- this allows us to leave the input unchanged |
| 3257 | * in the case of memory allocation failure. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3258 | tarjan t; |
| 3259 | t.index = 0; |
| 3260 | t.depth = 0; |
| 3261 | t.maxdepth = maxdepth; |
| 3262 | t.status = s; |
| 3263 | if (!upb_inttable_init(&t.objattr, UPB_CTYPE_UINT64)) goto err1; |
| 3264 | if (!upb_inttable_init(&t.stack, UPB_CTYPE_PTR)) goto err2; |
| 3265 | if (!upb_inttable_init(&t.groups, UPB_CTYPE_PTR)) goto err3; |
| 3266 | if (setjmp(t.err) != 0) goto err4; |
| 3267 | |
| 3268 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3269 | for (i = 0; i < n; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3270 | if (color(&t, roots[i]) < GREEN) { |
| 3271 | do_tarjan(roots[i], &t); |
| 3272 | } |
| 3273 | } |
| 3274 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3275 | /* If we've made it this far, no further errors are possible so it's safe to |
| 3276 | * mutate the objects without risk of leaving them in an inconsistent state. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3277 | ret = true; |
| 3278 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3279 | /* The transformation that follows requires care. The preconditions are: |
| 3280 | * - all objects in attr map are WHITE or GRAY, and are in mutable groups |
| 3281 | * (groups of all mutable objs) |
| 3282 | * - no ref2(to, from) refs have incremented count(to) if both "to" and |
| 3283 | * "from" are in our attr map (this follows from invariants (2) and (3)) */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3284 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3285 | /* Pass 1: we remove WHITE objects from their mutable groups, and add them to |
| 3286 | * new groups according to the SCC's we computed. These new groups will |
| 3287 | * consist of only frozen objects. None will be immediately collectible, |
| 3288 | * because WHITE objects are by definition reachable from one of "roots", |
| 3289 | * which the caller must own refs on. */ |
| 3290 | upb_inttable_begin(&iter, &t.objattr); |
| 3291 | for(; !upb_inttable_done(&iter); upb_inttable_next(&iter)) { |
| 3292 | upb_refcounted *obj = (upb_refcounted*)upb_inttable_iter_key(&iter); |
| 3293 | /* Since removal from a singly-linked list requires access to the object's |
| 3294 | * predecessor, we consider obj->next instead of obj for moving. With the |
| 3295 | * while() loop we guarantee that we will visit every node's predecessor. |
| 3296 | * Proof: |
| 3297 | * 1. every node's predecessor is in our attr map. |
| 3298 | * 2. though the loop body may change a node's predecessor, it will only |
| 3299 | * change it to be the node we are currently operating on, so with a |
| 3300 | * while() loop we guarantee ourselves the chance to remove each node. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3301 | while (color(&t, obj->next) == WHITE && |
| 3302 | group(&t, obj->next) != obj->next->group) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3303 | upb_refcounted *leader; |
| 3304 | |
| 3305 | /* Remove from old group. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3306 | upb_refcounted *move = obj->next; |
| 3307 | if (obj == move) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3308 | /* Removing the last object from a group. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3309 | assert(*obj->group == obj->individual_count); |
| 3310 | free(obj->group); |
| 3311 | } else { |
| 3312 | obj->next = move->next; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3313 | /* This may decrease to zero; we'll collect GRAY objects (if any) that |
| 3314 | * remain in the group in the third pass. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3315 | assert(*move->group >= move->individual_count); |
| 3316 | *move->group -= move->individual_count; |
| 3317 | } |
| 3318 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3319 | /* Add to new group. */ |
| 3320 | leader = groupleader(&t, move); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3321 | if (move == leader) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3322 | /* First object added to new group is its leader. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3323 | move->group = group(&t, move); |
| 3324 | move->next = move; |
| 3325 | *move->group = move->individual_count; |
| 3326 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3327 | /* Group already has at least one object in it. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3328 | assert(leader->group == group(&t, move)); |
| 3329 | move->group = group(&t, move); |
| 3330 | move->next = leader->next; |
| 3331 | leader->next = move; |
| 3332 | *move->group += move->individual_count; |
| 3333 | } |
| 3334 | |
| 3335 | move->is_frozen = true; |
| 3336 | } |
| 3337 | } |
| 3338 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3339 | /* Pass 2: GRAY and WHITE objects "obj" with ref2(to, obj) references must |
| 3340 | * increment count(to) if group(obj) != group(to) (which could now be the |
| 3341 | * case if "to" was just frozen). */ |
| 3342 | upb_inttable_begin(&iter, &t.objattr); |
| 3343 | for(; !upb_inttable_done(&iter); upb_inttable_next(&iter)) { |
| 3344 | upb_refcounted *obj = (upb_refcounted*)upb_inttable_iter_key(&iter); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3345 | visit(obj, crossref, &t); |
| 3346 | } |
| 3347 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3348 | /* Pass 3: GRAY objects are collected if their group's refcount dropped to |
| 3349 | * zero when we removed its white nodes. This can happen if they had only |
| 3350 | * been kept alive by virtue of sharing a group with an object that was just |
| 3351 | * frozen. |
| 3352 | * |
| 3353 | * It is important that we do this last, since the GRAY object's free() |
| 3354 | * function could call unref2() on just-frozen objects, which will decrement |
| 3355 | * refs that were added in pass 2. */ |
| 3356 | upb_inttable_begin(&iter, &t.objattr); |
| 3357 | for(; !upb_inttable_done(&iter); upb_inttable_next(&iter)) { |
| 3358 | upb_refcounted *obj = (upb_refcounted*)upb_inttable_iter_key(&iter); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3359 | if (obj->group == NULL || *obj->group == 0) { |
| 3360 | if (obj->group) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3361 | upb_refcounted *o; |
| 3362 | |
| 3363 | /* We eagerly free() the group's count (since we can't easily determine |
| 3364 | * the group's remaining size it's the easiest way to ensure it gets |
| 3365 | * done). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3366 | free(obj->group); |
| 3367 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3368 | /* Visit to release ref2's (done in a separate pass since release_ref2 |
| 3369 | * depends on o->group being unmodified so it can test merged()). */ |
| 3370 | o = obj; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3371 | do { visit(o, release_ref2, NULL); } while ((o = o->next) != obj); |
| 3372 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3373 | /* Mark "group" fields as NULL so we know to free the objects later in |
| 3374 | * this loop, but also don't try to delete the group twice. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3375 | o = obj; |
| 3376 | do { o->group = NULL; } while ((o = o->next) != obj); |
| 3377 | } |
| 3378 | freeobj(obj); |
| 3379 | } |
| 3380 | } |
| 3381 | |
| 3382 | err4: |
| 3383 | if (!ret) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3384 | upb_inttable_begin(&iter, &t.groups); |
| 3385 | for(; !upb_inttable_done(&iter); upb_inttable_next(&iter)) |
| 3386 | free(upb_value_getptr(upb_inttable_iter_value(&iter))); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3387 | } |
| 3388 | upb_inttable_uninit(&t.groups); |
| 3389 | err3: |
| 3390 | upb_inttable_uninit(&t.stack); |
| 3391 | err2: |
| 3392 | upb_inttable_uninit(&t.objattr); |
| 3393 | err1: |
| 3394 | return ret; |
| 3395 | } |
| 3396 | |
| 3397 | |
| 3398 | /* Misc internal functions ***************************************************/ |
| 3399 | |
| 3400 | static bool merged(const upb_refcounted *r, const upb_refcounted *r2) { |
| 3401 | return r->group == r2->group; |
| 3402 | } |
| 3403 | |
| 3404 | static void merge(upb_refcounted *r, upb_refcounted *from) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3405 | upb_refcounted *base; |
| 3406 | upb_refcounted *tmp; |
| 3407 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3408 | if (merged(r, from)) return; |
| 3409 | *r->group += *from->group; |
| 3410 | free(from->group); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3411 | base = from; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3412 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3413 | /* Set all refcount pointers in the "from" chain to the merged refcount. |
| 3414 | * |
| 3415 | * TODO(haberman): this linear algorithm can result in an overall O(n^2) bound |
| 3416 | * if the user continuously extends a group by one object. Prevent this by |
| 3417 | * using one of the techniques in this paper: |
| 3418 | * ftp://www.ncedc.org/outgoing/geomorph/dino/orals/p245-tarjan.pdf */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3419 | do { from->group = r->group; } while ((from = from->next) != base); |
| 3420 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3421 | /* Merge the two circularly linked lists by swapping their next pointers. */ |
| 3422 | tmp = r->next; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3423 | r->next = base->next; |
| 3424 | base->next = tmp; |
| 3425 | } |
| 3426 | |
| 3427 | static void unref(const upb_refcounted *r); |
| 3428 | |
| 3429 | static void release_ref2(const upb_refcounted *obj, |
| 3430 | const upb_refcounted *subobj, |
| 3431 | void *closure) { |
| 3432 | UPB_UNUSED(closure); |
| 3433 | untrack(subobj, obj, true); |
| 3434 | if (!merged(obj, subobj)) { |
| 3435 | assert(subobj->is_frozen); |
| 3436 | unref(subobj); |
| 3437 | } |
| 3438 | } |
| 3439 | |
| 3440 | static void unref(const upb_refcounted *r) { |
| 3441 | if (unrefgroup(r->group)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3442 | const upb_refcounted *o; |
| 3443 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3444 | free(r->group); |
| 3445 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3446 | /* In two passes, since release_ref2 needs a guarantee that any subobjs |
| 3447 | * are alive. */ |
| 3448 | o = r; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3449 | do { visit(o, release_ref2, NULL); } while((o = o->next) != r); |
| 3450 | |
| 3451 | o = r; |
| 3452 | do { |
| 3453 | const upb_refcounted *next = o->next; |
| 3454 | assert(o->is_frozen || o->individual_count == 0); |
| 3455 | freeobj((upb_refcounted*)o); |
| 3456 | o = next; |
| 3457 | } while(o != r); |
| 3458 | } |
| 3459 | } |
| 3460 | |
| 3461 | static void freeobj(upb_refcounted *o) { |
| 3462 | trackfree(o); |
| 3463 | o->vtbl->free((upb_refcounted*)o); |
| 3464 | } |
| 3465 | |
| 3466 | |
| 3467 | /* Public interface ***********************************************************/ |
| 3468 | |
| 3469 | bool upb_refcounted_init(upb_refcounted *r, |
| 3470 | const struct upb_refcounted_vtbl *vtbl, |
| 3471 | const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3472 | #ifndef NDEBUG |
| 3473 | /* Endianness check. This is unrelated to upb_refcounted, it's just a |
| 3474 | * convenient place to put the check that we can be assured will run for |
| 3475 | * basically every program using upb. */ |
| 3476 | const int x = 1; |
| 3477 | #ifdef UPB_BIG_ENDIAN |
| 3478 | assert(*(char*)&x != 1); |
| 3479 | #else |
| 3480 | assert(*(char*)&x == 1); |
| 3481 | #endif |
| 3482 | #endif |
| 3483 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3484 | r->next = r; |
| 3485 | r->vtbl = vtbl; |
| 3486 | r->individual_count = 0; |
| 3487 | r->is_frozen = false; |
| 3488 | r->group = malloc(sizeof(*r->group)); |
| 3489 | if (!r->group) return false; |
| 3490 | *r->group = 0; |
| 3491 | if (!trackinit(r)) { |
| 3492 | free(r->group); |
| 3493 | return false; |
| 3494 | } |
| 3495 | upb_refcounted_ref(r, owner); |
| 3496 | return true; |
| 3497 | } |
| 3498 | |
| 3499 | bool upb_refcounted_isfrozen(const upb_refcounted *r) { |
| 3500 | return r->is_frozen; |
| 3501 | } |
| 3502 | |
| 3503 | void upb_refcounted_ref(const upb_refcounted *r, const void *owner) { |
| 3504 | track(r, owner, false); |
| 3505 | if (!r->is_frozen) |
| 3506 | ((upb_refcounted*)r)->individual_count++; |
| 3507 | refgroup(r->group); |
| 3508 | } |
| 3509 | |
| 3510 | void upb_refcounted_unref(const upb_refcounted *r, const void *owner) { |
| 3511 | untrack(r, owner, false); |
| 3512 | if (!r->is_frozen) |
| 3513 | ((upb_refcounted*)r)->individual_count--; |
| 3514 | unref(r); |
| 3515 | } |
| 3516 | |
| 3517 | void upb_refcounted_ref2(const upb_refcounted *r, upb_refcounted *from) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3518 | assert(!from->is_frozen); /* Non-const pointer implies this. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3519 | track(r, from, true); |
| 3520 | if (r->is_frozen) { |
| 3521 | refgroup(r->group); |
| 3522 | } else { |
| 3523 | merge((upb_refcounted*)r, from); |
| 3524 | } |
| 3525 | } |
| 3526 | |
| 3527 | void upb_refcounted_unref2(const upb_refcounted *r, upb_refcounted *from) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3528 | assert(!from->is_frozen); /* Non-const pointer implies this. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3529 | untrack(r, from, true); |
| 3530 | if (r->is_frozen) { |
| 3531 | unref(r); |
| 3532 | } else { |
| 3533 | assert(merged(r, from)); |
| 3534 | } |
| 3535 | } |
| 3536 | |
| 3537 | void upb_refcounted_donateref( |
| 3538 | const upb_refcounted *r, const void *from, const void *to) { |
| 3539 | assert(from != to); |
| 3540 | if (to != NULL) |
| 3541 | upb_refcounted_ref(r, to); |
| 3542 | if (from != NULL) |
| 3543 | upb_refcounted_unref(r, from); |
| 3544 | } |
| 3545 | |
| 3546 | void upb_refcounted_checkref(const upb_refcounted *r, const void *owner) { |
| 3547 | checkref(r, owner, false); |
| 3548 | } |
| 3549 | |
| 3550 | bool upb_refcounted_freeze(upb_refcounted *const*roots, int n, upb_status *s, |
| 3551 | int maxdepth) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3552 | int i; |
| 3553 | for (i = 0; i < n; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3554 | assert(!roots[i]->is_frozen); |
| 3555 | } |
| 3556 | return freeze(roots, n, s, maxdepth); |
| 3557 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3558 | |
| 3559 | |
| 3560 | #include <stdlib.h> |
| 3561 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3562 | /* Fallback implementation if the shim is not specialized by the JIT. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3563 | #define SHIM_WRITER(type, ctype) \ |
| 3564 | bool upb_shim_set ## type (void *c, const void *hd, ctype val) { \ |
| 3565 | uint8_t *m = c; \ |
| 3566 | const upb_shim_data *d = hd; \ |
| 3567 | if (d->hasbit > 0) \ |
| 3568 | *(uint8_t*)&m[d->hasbit / 8] |= 1 << (d->hasbit % 8); \ |
| 3569 | *(ctype*)&m[d->offset] = val; \ |
| 3570 | return true; \ |
| 3571 | } \ |
| 3572 | |
| 3573 | SHIM_WRITER(double, double) |
| 3574 | SHIM_WRITER(float, float) |
| 3575 | SHIM_WRITER(int32, int32_t) |
| 3576 | SHIM_WRITER(int64, int64_t) |
| 3577 | SHIM_WRITER(uint32, uint32_t) |
| 3578 | SHIM_WRITER(uint64, uint64_t) |
| 3579 | SHIM_WRITER(bool, bool) |
| 3580 | #undef SHIM_WRITER |
| 3581 | |
| 3582 | bool upb_shim_set(upb_handlers *h, const upb_fielddef *f, size_t offset, |
| 3583 | int32_t hasbit) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3584 | upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER; |
| 3585 | bool ok; |
| 3586 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3587 | upb_shim_data *d = malloc(sizeof(*d)); |
| 3588 | if (!d) return false; |
| 3589 | d->offset = offset; |
| 3590 | d->hasbit = hasbit; |
| 3591 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3592 | upb_handlerattr_sethandlerdata(&attr, d); |
| 3593 | upb_handlerattr_setalwaysok(&attr, true); |
| 3594 | upb_handlers_addcleanup(h, d, free); |
| 3595 | |
| 3596 | #define TYPE(u, l) \ |
| 3597 | case UPB_TYPE_##u: \ |
| 3598 | ok = upb_handlers_set##l(h, f, upb_shim_set##l, &attr); break; |
| 3599 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3600 | ok = false; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3601 | |
| 3602 | switch (upb_fielddef_type(f)) { |
| 3603 | TYPE(INT64, int64); |
| 3604 | TYPE(INT32, int32); |
| 3605 | TYPE(ENUM, int32); |
| 3606 | TYPE(UINT64, uint64); |
| 3607 | TYPE(UINT32, uint32); |
| 3608 | TYPE(DOUBLE, double); |
| 3609 | TYPE(FLOAT, float); |
| 3610 | TYPE(BOOL, bool); |
| 3611 | default: assert(false); break; |
| 3612 | } |
| 3613 | #undef TYPE |
| 3614 | |
| 3615 | upb_handlerattr_uninit(&attr); |
| 3616 | return ok; |
| 3617 | } |
| 3618 | |
| 3619 | const upb_shim_data *upb_shim_getdata(const upb_handlers *h, upb_selector_t s, |
| 3620 | upb_fieldtype_t *type) { |
| 3621 | upb_func *f = upb_handlers_gethandler(h, s); |
| 3622 | |
| 3623 | if ((upb_int64_handlerfunc*)f == upb_shim_setint64) { |
| 3624 | *type = UPB_TYPE_INT64; |
| 3625 | } else if ((upb_int32_handlerfunc*)f == upb_shim_setint32) { |
| 3626 | *type = UPB_TYPE_INT32; |
| 3627 | } else if ((upb_uint64_handlerfunc*)f == upb_shim_setuint64) { |
| 3628 | *type = UPB_TYPE_UINT64; |
| 3629 | } else if ((upb_uint32_handlerfunc*)f == upb_shim_setuint32) { |
| 3630 | *type = UPB_TYPE_UINT32; |
| 3631 | } else if ((upb_double_handlerfunc*)f == upb_shim_setdouble) { |
| 3632 | *type = UPB_TYPE_DOUBLE; |
| 3633 | } else if ((upb_float_handlerfunc*)f == upb_shim_setfloat) { |
| 3634 | *type = UPB_TYPE_FLOAT; |
| 3635 | } else if ((upb_bool_handlerfunc*)f == upb_shim_setbool) { |
| 3636 | *type = UPB_TYPE_BOOL; |
| 3637 | } else { |
| 3638 | return NULL; |
| 3639 | } |
| 3640 | |
| 3641 | return (const upb_shim_data*)upb_handlers_gethandlerdata(h, s); |
| 3642 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3643 | |
| 3644 | |
| 3645 | #include <stdlib.h> |
| 3646 | #include <string.h> |
| 3647 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3648 | static void upb_symtab_free(upb_refcounted *r) { |
| 3649 | upb_symtab *s = (upb_symtab*)r; |
| 3650 | upb_strtable_iter i; |
| 3651 | upb_strtable_begin(&i, &s->symtab); |
| 3652 | for (; !upb_strtable_done(&i); upb_strtable_next(&i)) { |
| 3653 | const upb_def *def = upb_value_getptr(upb_strtable_iter_value(&i)); |
| 3654 | upb_def_unref(def, s); |
| 3655 | } |
| 3656 | upb_strtable_uninit(&s->symtab); |
| 3657 | free(s); |
| 3658 | } |
| 3659 | |
| 3660 | |
| 3661 | upb_symtab *upb_symtab_new(const void *owner) { |
| 3662 | static const struct upb_refcounted_vtbl vtbl = {NULL, &upb_symtab_free}; |
| 3663 | upb_symtab *s = malloc(sizeof(*s)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3664 | upb_refcounted_init(upb_symtab_upcast_mutable(s), &vtbl, owner); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3665 | upb_strtable_init(&s->symtab, UPB_CTYPE_PTR); |
| 3666 | return s; |
| 3667 | } |
| 3668 | |
| 3669 | void upb_symtab_freeze(upb_symtab *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3670 | upb_refcounted *r; |
| 3671 | bool ok; |
| 3672 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3673 | assert(!upb_symtab_isfrozen(s)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3674 | r = upb_symtab_upcast_mutable(s); |
| 3675 | /* The symtab does not take ref2's (see refcounted.h) on the defs, because |
| 3676 | * defs cannot refer back to the table and therefore cannot create cycles. So |
| 3677 | * 0 will suffice for maxdepth here. */ |
| 3678 | ok = upb_refcounted_freeze(&r, 1, NULL, 0); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3679 | UPB_ASSERT_VAR(ok, ok); |
| 3680 | } |
| 3681 | |
| 3682 | const upb_def *upb_symtab_lookup(const upb_symtab *s, const char *sym) { |
| 3683 | upb_value v; |
| 3684 | upb_def *ret = upb_strtable_lookup(&s->symtab, sym, &v) ? |
| 3685 | upb_value_getptr(v) : NULL; |
| 3686 | return ret; |
| 3687 | } |
| 3688 | |
| 3689 | const upb_msgdef *upb_symtab_lookupmsg(const upb_symtab *s, const char *sym) { |
| 3690 | upb_value v; |
| 3691 | upb_def *def = upb_strtable_lookup(&s->symtab, sym, &v) ? |
| 3692 | upb_value_getptr(v) : NULL; |
| 3693 | return def ? upb_dyncast_msgdef(def) : NULL; |
| 3694 | } |
| 3695 | |
| 3696 | const upb_enumdef *upb_symtab_lookupenum(const upb_symtab *s, const char *sym) { |
| 3697 | upb_value v; |
| 3698 | upb_def *def = upb_strtable_lookup(&s->symtab, sym, &v) ? |
| 3699 | upb_value_getptr(v) : NULL; |
| 3700 | return def ? upb_dyncast_enumdef(def) : NULL; |
| 3701 | } |
| 3702 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3703 | /* Given a symbol and the base symbol inside which it is defined, find the |
| 3704 | * symbol's definition in t. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3705 | static upb_def *upb_resolvename(const upb_strtable *t, |
| 3706 | const char *base, const char *sym) { |
| 3707 | if(strlen(sym) == 0) return NULL; |
| 3708 | if(sym[0] == '.') { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3709 | /* Symbols starting with '.' are absolute, so we do a single lookup. |
| 3710 | * Slice to omit the leading '.' */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3711 | upb_value v; |
| 3712 | return upb_strtable_lookup(t, sym + 1, &v) ? upb_value_getptr(v) : NULL; |
| 3713 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3714 | /* Remove components from base until we find an entry or run out. |
| 3715 | * TODO: This branch is totally broken, but currently not used. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3716 | (void)base; |
| 3717 | assert(false); |
| 3718 | return NULL; |
| 3719 | } |
| 3720 | } |
| 3721 | |
| 3722 | const upb_def *upb_symtab_resolve(const upb_symtab *s, const char *base, |
| 3723 | const char *sym) { |
| 3724 | upb_def *ret = upb_resolvename(&s->symtab, base, sym); |
| 3725 | return ret; |
| 3726 | } |
| 3727 | |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3728 | /* Starts a depth-first traversal at "def", recursing into any subdefs |
| 3729 | * (ie. submessage types). Adds duplicates of existing defs to addtab |
| 3730 | * wherever necessary, so that the resulting symtab will be consistent once |
| 3731 | * addtab is added. |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3732 | * |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3733 | * More specifically, if any def D is found in the DFS that: |
| 3734 | * |
| 3735 | * 1. can reach a def that is being replaced by something in addtab, AND |
| 3736 | * |
| 3737 | * 2. is not itself being replaced already (ie. this name doesn't already |
| 3738 | * exist in addtab) |
| 3739 | * |
| 3740 | * ...then a duplicate (new copy) of D will be added to addtab. |
| 3741 | * |
| 3742 | * Returns true if this happened for any def reachable from "def." |
| 3743 | * |
| 3744 | * It is slightly tricky to do this correctly in the presence of cycles. If we |
| 3745 | * detect that our DFS has hit a cycle, we might not yet know if any SCCs on |
| 3746 | * our stack can reach a def in addtab or not. Once we figure this out, that |
| 3747 | * answer needs to apply to *all* defs in these SCCs, even if we visited them |
| 3748 | * already. So a straight up one-pass cycle-detecting DFS won't work. |
| 3749 | * |
| 3750 | * To work around this problem, we traverse each SCC (which we already |
| 3751 | * computed, since these defs are frozen) as a single node. We first compute |
| 3752 | * whether the SCC as a whole can reach any def in addtab, then we dup (or not) |
| 3753 | * the entire SCC. This requires breaking the encapsulation of upb_refcounted, |
| 3754 | * since that is where we get the data about what SCC we are in. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3755 | static bool upb_resolve_dfs(const upb_def *def, upb_strtable *addtab, |
| 3756 | const void *new_owner, upb_inttable *seen, |
| 3757 | upb_status *s) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3758 | upb_value v; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3759 | bool need_dup; |
| 3760 | const upb_def *base; |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3761 | const void* memoize_key; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3762 | |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3763 | /* Memoize results of this function for efficiency (since we're traversing a |
| 3764 | * DAG this is not needed to limit the depth of the search). |
| 3765 | * |
| 3766 | * We memoize by SCC instead of by individual def. */ |
| 3767 | memoize_key = def->base.group; |
| 3768 | |
| 3769 | if (upb_inttable_lookupptr(seen, memoize_key, &v)) |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3770 | return upb_value_getbool(v); |
| 3771 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3772 | /* Visit submessages for all messages in the SCC. */ |
| 3773 | need_dup = false; |
| 3774 | base = def; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3775 | do { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3776 | upb_value v; |
| 3777 | const upb_msgdef *m; |
| 3778 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3779 | assert(upb_def_isfrozen(def)); |
| 3780 | if (def->type == UPB_DEF_FIELD) continue; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3781 | if (upb_strtable_lookup(addtab, upb_def_fullname(def), &v)) { |
| 3782 | need_dup = true; |
| 3783 | } |
| 3784 | |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3785 | /* For messages, continue the recursion by visiting all subdefs, but only |
| 3786 | * ones in different SCCs. */ |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3787 | m = upb_dyncast_msgdef(def); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3788 | if (m) { |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 3789 | upb_msg_field_iter i; |
| 3790 | for(upb_msg_field_begin(&i, m); |
| 3791 | !upb_msg_field_done(&i); |
| 3792 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3793 | upb_fielddef *f = upb_msg_iter_field(&i); |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3794 | const upb_def *subdef; |
| 3795 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3796 | if (!upb_fielddef_hassubdef(f)) continue; |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3797 | subdef = upb_fielddef_subdef(f); |
| 3798 | |
| 3799 | /* Skip subdefs in this SCC. */ |
| 3800 | if (def->base.group == subdef->base.group) continue; |
| 3801 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3802 | /* |= to avoid short-circuit; we need its side-effects. */ |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3803 | need_dup |= upb_resolve_dfs(subdef, addtab, new_owner, seen, s); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3804 | if (!upb_ok(s)) return false; |
| 3805 | } |
| 3806 | } |
| 3807 | } while ((def = (upb_def*)def->base.next) != base); |
| 3808 | |
| 3809 | if (need_dup) { |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3810 | /* Dup all defs in this SCC that don't already have entries in addtab. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3811 | def = base; |
| 3812 | do { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3813 | const char *name; |
| 3814 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3815 | if (def->type == UPB_DEF_FIELD) continue; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3816 | name = upb_def_fullname(def); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3817 | if (!upb_strtable_lookup(addtab, name, NULL)) { |
| 3818 | upb_def *newdef = upb_def_dup(def, new_owner); |
| 3819 | if (!newdef) goto oom; |
| 3820 | newdef->came_from_user = false; |
| 3821 | if (!upb_strtable_insert(addtab, name, upb_value_ptr(newdef))) |
| 3822 | goto oom; |
| 3823 | } |
| 3824 | } while ((def = (upb_def*)def->base.next) != base); |
| 3825 | } |
| 3826 | |
Josh Haberman | fb8ed70 | 2015-06-22 17:23:55 -0700 | [diff] [blame] | 3827 | upb_inttable_insertptr(seen, memoize_key, upb_value_bool(need_dup)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3828 | return need_dup; |
| 3829 | |
| 3830 | oom: |
| 3831 | upb_status_seterrmsg(s, "out of memory"); |
| 3832 | return false; |
| 3833 | } |
| 3834 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3835 | /* TODO(haberman): we need a lot more testing of error conditions. |
| 3836 | * The came_from_user stuff in particular is not tested. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3837 | bool upb_symtab_add(upb_symtab *s, upb_def *const*defs, int n, void *ref_donor, |
| 3838 | upb_status *status) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3839 | int i; |
| 3840 | upb_strtable_iter iter; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3841 | upb_def **add_defs = NULL; |
| 3842 | upb_strtable addtab; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3843 | upb_inttable seen; |
| 3844 | |
| 3845 | assert(!upb_symtab_isfrozen(s)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3846 | if (!upb_strtable_init(&addtab, UPB_CTYPE_PTR)) { |
| 3847 | upb_status_seterrmsg(status, "out of memory"); |
| 3848 | return false; |
| 3849 | } |
| 3850 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3851 | /* Add new defs to our "add" set. */ |
| 3852 | for (i = 0; i < n; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3853 | upb_def *def = defs[i]; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3854 | const char *fullname; |
| 3855 | upb_fielddef *f; |
| 3856 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3857 | if (upb_def_isfrozen(def)) { |
| 3858 | upb_status_seterrmsg(status, "added defs must be mutable"); |
| 3859 | goto err; |
| 3860 | } |
| 3861 | assert(!upb_def_isfrozen(def)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3862 | fullname = upb_def_fullname(def); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3863 | if (!fullname) { |
| 3864 | upb_status_seterrmsg( |
| 3865 | status, "Anonymous defs cannot be added to a symtab"); |
| 3866 | goto err; |
| 3867 | } |
| 3868 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3869 | f = upb_dyncast_fielddef_mutable(def); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3870 | |
| 3871 | if (f) { |
| 3872 | if (!upb_fielddef_containingtypename(f)) { |
| 3873 | upb_status_seterrmsg(status, |
| 3874 | "Standalone fielddefs must have a containing type " |
| 3875 | "(extendee) name set"); |
| 3876 | goto err; |
| 3877 | } |
| 3878 | } else { |
| 3879 | if (upb_strtable_lookup(&addtab, fullname, NULL)) { |
| 3880 | upb_status_seterrf(status, "Conflicting defs named '%s'", fullname); |
| 3881 | goto err; |
| 3882 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3883 | /* We need this to back out properly, because if there is a failure we |
| 3884 | * need to donate the ref back to the caller. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3885 | def->came_from_user = true; |
| 3886 | upb_def_donateref(def, ref_donor, s); |
| 3887 | if (!upb_strtable_insert(&addtab, fullname, upb_value_ptr(def))) |
| 3888 | goto oom_err; |
| 3889 | } |
| 3890 | } |
| 3891 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3892 | /* Add standalone fielddefs (ie. extensions) to the appropriate messages. |
| 3893 | * If the appropriate message only exists in the existing symtab, duplicate |
| 3894 | * it so we have a mutable copy we can add the fields to. */ |
| 3895 | for (i = 0; i < n; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3896 | upb_def *def = defs[i]; |
| 3897 | upb_fielddef *f = upb_dyncast_fielddef_mutable(def); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3898 | const char *msgname; |
| 3899 | upb_value v; |
| 3900 | upb_msgdef *m; |
| 3901 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3902 | if (!f) continue; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3903 | msgname = upb_fielddef_containingtypename(f); |
| 3904 | /* We validated this earlier in this function. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3905 | assert(msgname); |
| 3906 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3907 | /* If the extendee name is absolutely qualified, move past the initial ".". |
| 3908 | * TODO(haberman): it is not obvious what it would mean if this was not |
| 3909 | * absolutely qualified. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3910 | if (msgname[0] == '.') { |
| 3911 | msgname++; |
| 3912 | } |
| 3913 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3914 | if (upb_strtable_lookup(&addtab, msgname, &v)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3915 | /* Extendee is in the set of defs the user asked us to add. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3916 | m = upb_value_getptr(v); |
| 3917 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3918 | /* Need to find and dup the extendee from the existing symtab. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3919 | const upb_msgdef *frozen_m = upb_symtab_lookupmsg(s, msgname); |
| 3920 | if (!frozen_m) { |
| 3921 | upb_status_seterrf(status, |
| 3922 | "Tried to extend message %s that does not exist " |
| 3923 | "in this SymbolTable.", |
| 3924 | msgname); |
| 3925 | goto err; |
| 3926 | } |
| 3927 | m = upb_msgdef_dup(frozen_m, s); |
| 3928 | if (!m) goto oom_err; |
| 3929 | if (!upb_strtable_insert(&addtab, msgname, upb_value_ptr(m))) { |
| 3930 | upb_msgdef_unref(m, s); |
| 3931 | goto oom_err; |
| 3932 | } |
| 3933 | } |
| 3934 | |
| 3935 | if (!upb_msgdef_addfield(m, f, ref_donor, status)) { |
| 3936 | goto err; |
| 3937 | } |
| 3938 | } |
| 3939 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3940 | /* Add dups of any existing def that can reach a def with the same name as |
| 3941 | * anything in our "add" set. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3942 | if (!upb_inttable_init(&seen, UPB_CTYPE_BOOL)) goto oom_err; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3943 | upb_strtable_begin(&iter, &s->symtab); |
| 3944 | for (; !upb_strtable_done(&iter); upb_strtable_next(&iter)) { |
| 3945 | upb_def *def = upb_value_getptr(upb_strtable_iter_value(&iter)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3946 | upb_resolve_dfs(def, &addtab, s, &seen, status); |
| 3947 | if (!upb_ok(status)) goto err; |
| 3948 | } |
| 3949 | upb_inttable_uninit(&seen); |
| 3950 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3951 | /* Now using the table, resolve symbolic references for subdefs. */ |
| 3952 | upb_strtable_begin(&iter, &addtab); |
| 3953 | for (; !upb_strtable_done(&iter); upb_strtable_next(&iter)) { |
| 3954 | const char *base; |
| 3955 | upb_def *def = upb_value_getptr(upb_strtable_iter_value(&iter)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3956 | upb_msgdef *m = upb_dyncast_msgdef_mutable(def); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 3957 | upb_msg_field_iter j; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3958 | |
| 3959 | if (!m) continue; |
| 3960 | /* Type names are resolved relative to the message in which they appear. */ |
| 3961 | base = upb_msgdef_fullname(m); |
| 3962 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 3963 | for(upb_msg_field_begin(&j, m); |
| 3964 | !upb_msg_field_done(&j); |
| 3965 | upb_msg_field_next(&j)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3966 | upb_fielddef *f = upb_msg_iter_field(&j); |
| 3967 | const char *name = upb_fielddef_subdefname(f); |
| 3968 | if (name && !upb_fielddef_subdef(f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3969 | /* Try the lookup in the current set of to-be-added defs first. If not |
| 3970 | * there, try existing defs. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3971 | upb_def *subdef = upb_resolvename(&addtab, base, name); |
| 3972 | if (subdef == NULL) { |
| 3973 | subdef = upb_resolvename(&s->symtab, base, name); |
| 3974 | } |
| 3975 | if (subdef == NULL) { |
| 3976 | upb_status_seterrf( |
| 3977 | status, "couldn't resolve name '%s' in message '%s'", name, base); |
| 3978 | goto err; |
| 3979 | } else if (!upb_fielddef_setsubdef(f, subdef, status)) { |
| 3980 | goto err; |
| 3981 | } |
| 3982 | } |
| 3983 | } |
| 3984 | } |
| 3985 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3986 | /* We need an array of the defs in addtab, for passing to upb_def_freeze. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3987 | add_defs = malloc(sizeof(void*) * upb_strtable_count(&addtab)); |
| 3988 | if (add_defs == NULL) goto oom_err; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3989 | upb_strtable_begin(&iter, &addtab); |
| 3990 | for (n = 0; !upb_strtable_done(&iter); upb_strtable_next(&iter)) { |
| 3991 | add_defs[n++] = upb_value_getptr(upb_strtable_iter_value(&iter)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3992 | } |
| 3993 | |
| 3994 | if (!upb_def_freeze(add_defs, n, status)) goto err; |
| 3995 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 3996 | /* This must be delayed until all errors have been detected, since error |
| 3997 | * recovery code uses this table to cleanup defs. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 3998 | upb_strtable_uninit(&addtab); |
| 3999 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4000 | /* TODO(haberman) we don't properly handle errors after this point (like |
| 4001 | * OOM in upb_strtable_insert() below). */ |
| 4002 | for (i = 0; i < n; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4003 | upb_def *def = add_defs[i]; |
| 4004 | const char *name = upb_def_fullname(def); |
| 4005 | upb_value v; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4006 | bool success; |
| 4007 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4008 | if (upb_strtable_remove(&s->symtab, name, &v)) { |
| 4009 | const upb_def *def = upb_value_getptr(v); |
| 4010 | upb_def_unref(def, s); |
| 4011 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4012 | success = upb_strtable_insert(&s->symtab, name, upb_value_ptr(def)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4013 | UPB_ASSERT_VAR(success, success == true); |
| 4014 | } |
| 4015 | free(add_defs); |
| 4016 | return true; |
| 4017 | |
| 4018 | oom_err: |
| 4019 | upb_status_seterrmsg(status, "out of memory"); |
| 4020 | err: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4021 | /* For defs the user passed in, we need to donate the refs back. For defs |
| 4022 | * we dup'd, we need to just unref them. */ |
| 4023 | upb_strtable_begin(&iter, &addtab); |
| 4024 | for (; !upb_strtable_done(&iter); upb_strtable_next(&iter)) { |
| 4025 | upb_def *def = upb_value_getptr(upb_strtable_iter_value(&iter)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4026 | bool came_from_user = def->came_from_user; |
| 4027 | def->came_from_user = false; |
| 4028 | if (came_from_user) { |
| 4029 | upb_def_donateref(def, s, ref_donor); |
| 4030 | } else { |
| 4031 | upb_def_unref(def, s); |
| 4032 | } |
| 4033 | } |
| 4034 | } |
| 4035 | upb_strtable_uninit(&addtab); |
| 4036 | free(add_defs); |
| 4037 | assert(!upb_ok(status)); |
| 4038 | return false; |
| 4039 | } |
| 4040 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4041 | /* Iteration. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4042 | |
| 4043 | static void advance_to_matching(upb_symtab_iter *iter) { |
| 4044 | if (iter->type == UPB_DEF_ANY) |
| 4045 | return; |
| 4046 | |
| 4047 | while (!upb_strtable_done(&iter->iter) && |
| 4048 | iter->type != upb_symtab_iter_def(iter)->type) { |
| 4049 | upb_strtable_next(&iter->iter); |
| 4050 | } |
| 4051 | } |
| 4052 | |
| 4053 | void upb_symtab_begin(upb_symtab_iter *iter, const upb_symtab *s, |
| 4054 | upb_deftype_t type) { |
| 4055 | upb_strtable_begin(&iter->iter, &s->symtab); |
| 4056 | iter->type = type; |
| 4057 | advance_to_matching(iter); |
| 4058 | } |
| 4059 | |
| 4060 | void upb_symtab_next(upb_symtab_iter *iter) { |
| 4061 | upb_strtable_next(&iter->iter); |
| 4062 | advance_to_matching(iter); |
| 4063 | } |
| 4064 | |
| 4065 | bool upb_symtab_done(const upb_symtab_iter *iter) { |
| 4066 | return upb_strtable_done(&iter->iter); |
| 4067 | } |
| 4068 | |
| 4069 | const upb_def *upb_symtab_iter_def(const upb_symtab_iter *iter) { |
| 4070 | return upb_value_getptr(upb_strtable_iter_value(&iter->iter)); |
| 4071 | } |
| 4072 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 4073 | ** upb_table Implementation |
| 4074 | ** |
| 4075 | ** Implementation is heavily inspired by Lua's ltable.c. |
| 4076 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4077 | |
| 4078 | |
| 4079 | #include <stdlib.h> |
| 4080 | #include <string.h> |
| 4081 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4082 | #define UPB_MAXARRSIZE 16 /* 64k. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4083 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4084 | /* From Chromium. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4085 | #define ARRAY_SIZE(x) \ |
| 4086 | ((sizeof(x)/sizeof(0[x])) / ((size_t)(!(sizeof(x) % sizeof(0[x]))))) |
| 4087 | |
| 4088 | static const double MAX_LOAD = 0.85; |
| 4089 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4090 | /* The minimum utilization of the array part of a mixed hash/array table. This |
| 4091 | * is a speed/memory-usage tradeoff (though it's not straightforward because of |
| 4092 | * cache effects). The lower this is, the more memory we'll use. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4093 | static const double MIN_DENSITY = 0.1; |
| 4094 | |
| 4095 | bool is_pow2(uint64_t v) { return v == 0 || (v & (v - 1)) == 0; } |
| 4096 | |
| 4097 | int log2ceil(uint64_t v) { |
| 4098 | int ret = 0; |
| 4099 | bool pow2 = is_pow2(v); |
| 4100 | while (v >>= 1) ret++; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4101 | ret = pow2 ? ret : ret + 1; /* Ceiling. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4102 | return UPB_MIN(UPB_MAXARRSIZE, ret); |
| 4103 | } |
| 4104 | |
| 4105 | char *upb_strdup(const char *s) { |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 4106 | return upb_strdup2(s, strlen(s)); |
| 4107 | } |
| 4108 | |
| 4109 | char *upb_strdup2(const char *s, size_t len) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4110 | size_t n; |
| 4111 | char *p; |
| 4112 | |
| 4113 | /* Prevent overflow errors. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 4114 | if (len == SIZE_MAX) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4115 | /* Always null-terminate, even if binary data; but don't rely on the input to |
| 4116 | * have a null-terminating byte since it may be a raw binary buffer. */ |
| 4117 | n = len + 1; |
| 4118 | p = malloc(n); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 4119 | if (p) { |
| 4120 | memcpy(p, s, len); |
| 4121 | p[len] = 0; |
| 4122 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4123 | return p; |
| 4124 | } |
| 4125 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4126 | /* A type to represent the lookup key of either a strtable or an inttable. */ |
| 4127 | typedef union { |
| 4128 | uintptr_t num; |
| 4129 | struct { |
| 4130 | const char *str; |
| 4131 | size_t len; |
| 4132 | } str; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4133 | } lookupkey_t; |
| 4134 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4135 | static lookupkey_t strkey2(const char *str, size_t len) { |
| 4136 | lookupkey_t k; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4137 | k.str.str = str; |
| 4138 | k.str.len = len; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4139 | return k; |
| 4140 | } |
| 4141 | |
| 4142 | static lookupkey_t intkey(uintptr_t key) { |
| 4143 | lookupkey_t k; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4144 | k.num = key; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4145 | return k; |
| 4146 | } |
| 4147 | |
| 4148 | typedef uint32_t hashfunc_t(upb_tabkey key); |
| 4149 | typedef bool eqlfunc_t(upb_tabkey k1, lookupkey_t k2); |
| 4150 | |
| 4151 | /* Base table (shared code) ***************************************************/ |
| 4152 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4153 | /* For when we need to cast away const. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4154 | static upb_tabent *mutable_entries(upb_table *t) { |
| 4155 | return (upb_tabent*)t->entries; |
| 4156 | } |
| 4157 | |
| 4158 | static bool isfull(upb_table *t) { |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4159 | if (upb_table_size(t) == 0) { |
| 4160 | return true; |
| 4161 | } else { |
| 4162 | return ((double)(t->count + 1) / upb_table_size(t)) > MAX_LOAD; |
| 4163 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4164 | } |
| 4165 | |
| 4166 | static bool init(upb_table *t, upb_ctype_t ctype, uint8_t size_lg2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4167 | size_t bytes; |
| 4168 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4169 | t->count = 0; |
| 4170 | t->ctype = ctype; |
| 4171 | t->size_lg2 = size_lg2; |
| 4172 | t->mask = upb_table_size(t) ? upb_table_size(t) - 1 : 0; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4173 | bytes = upb_table_size(t) * sizeof(upb_tabent); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4174 | if (bytes > 0) { |
| 4175 | t->entries = malloc(bytes); |
| 4176 | if (!t->entries) return false; |
| 4177 | memset(mutable_entries(t), 0, bytes); |
| 4178 | } else { |
| 4179 | t->entries = NULL; |
| 4180 | } |
| 4181 | return true; |
| 4182 | } |
| 4183 | |
| 4184 | static void uninit(upb_table *t) { free(mutable_entries(t)); } |
| 4185 | |
| 4186 | static upb_tabent *emptyent(upb_table *t) { |
| 4187 | upb_tabent *e = mutable_entries(t) + upb_table_size(t); |
| 4188 | while (1) { if (upb_tabent_isempty(--e)) return e; assert(e > t->entries); } |
| 4189 | } |
| 4190 | |
| 4191 | static upb_tabent *getentry_mutable(upb_table *t, uint32_t hash) { |
| 4192 | return (upb_tabent*)upb_getentry(t, hash); |
| 4193 | } |
| 4194 | |
| 4195 | static const upb_tabent *findentry(const upb_table *t, lookupkey_t key, |
| 4196 | uint32_t hash, eqlfunc_t *eql) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4197 | const upb_tabent *e; |
| 4198 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4199 | if (t->size_lg2 == 0) return NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4200 | e = upb_getentry(t, hash); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4201 | if (upb_tabent_isempty(e)) return NULL; |
| 4202 | while (1) { |
| 4203 | if (eql(e->key, key)) return e; |
| 4204 | if ((e = e->next) == NULL) return NULL; |
| 4205 | } |
| 4206 | } |
| 4207 | |
| 4208 | static upb_tabent *findentry_mutable(upb_table *t, lookupkey_t key, |
| 4209 | uint32_t hash, eqlfunc_t *eql) { |
| 4210 | return (upb_tabent*)findentry(t, key, hash, eql); |
| 4211 | } |
| 4212 | |
| 4213 | static bool lookup(const upb_table *t, lookupkey_t key, upb_value *v, |
| 4214 | uint32_t hash, eqlfunc_t *eql) { |
| 4215 | const upb_tabent *e = findentry(t, key, hash, eql); |
| 4216 | if (e) { |
| 4217 | if (v) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4218 | _upb_value_setval(v, e->val.val, t->ctype); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4219 | } |
| 4220 | return true; |
| 4221 | } else { |
| 4222 | return false; |
| 4223 | } |
| 4224 | } |
| 4225 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4226 | /* The given key must not already exist in the table. */ |
| 4227 | static void insert(upb_table *t, lookupkey_t key, upb_tabkey tabkey, |
| 4228 | upb_value val, uint32_t hash, |
| 4229 | hashfunc_t *hashfunc, eqlfunc_t *eql) { |
| 4230 | upb_tabent *mainpos_e; |
| 4231 | upb_tabent *our_e; |
| 4232 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4233 | UPB_UNUSED(eql); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4234 | UPB_UNUSED(key); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4235 | assert(findentry(t, key, hash, eql) == NULL); |
| 4236 | assert(val.ctype == t->ctype); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4237 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4238 | t->count++; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4239 | mainpos_e = getentry_mutable(t, hash); |
| 4240 | our_e = mainpos_e; |
| 4241 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4242 | if (upb_tabent_isempty(mainpos_e)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4243 | /* Our main position is empty; use it. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4244 | our_e->next = NULL; |
| 4245 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4246 | /* Collision. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4247 | upb_tabent *new_e = emptyent(t); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4248 | /* Head of collider's chain. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4249 | upb_tabent *chain = getentry_mutable(t, hashfunc(mainpos_e->key)); |
| 4250 | if (chain == mainpos_e) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4251 | /* Existing ent is in its main posisiton (it has the same hash as us, and |
| 4252 | * is the head of our chain). Insert to new ent and append to this chain. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4253 | new_e->next = mainpos_e->next; |
| 4254 | mainpos_e->next = new_e; |
| 4255 | our_e = new_e; |
| 4256 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4257 | /* Existing ent is not in its main position (it is a node in some other |
| 4258 | * chain). This implies that no existing ent in the table has our hash. |
| 4259 | * Evict it (updating its chain) and use its ent for head of our chain. */ |
| 4260 | *new_e = *mainpos_e; /* copies next. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4261 | while (chain->next != mainpos_e) { |
| 4262 | chain = (upb_tabent*)chain->next; |
| 4263 | assert(chain); |
| 4264 | } |
| 4265 | chain->next = new_e; |
| 4266 | our_e = mainpos_e; |
| 4267 | our_e->next = NULL; |
| 4268 | } |
| 4269 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4270 | our_e->key = tabkey; |
| 4271 | our_e->val.val = val.val; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4272 | assert(findentry(t, key, hash, eql) == our_e); |
| 4273 | } |
| 4274 | |
| 4275 | static bool rm(upb_table *t, lookupkey_t key, upb_value *val, |
| 4276 | upb_tabkey *removed, uint32_t hash, eqlfunc_t *eql) { |
| 4277 | upb_tabent *chain = getentry_mutable(t, hash); |
| 4278 | if (upb_tabent_isempty(chain)) return false; |
| 4279 | if (eql(chain->key, key)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4280 | /* Element to remove is at the head of its chain. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4281 | t->count--; |
| 4282 | if (val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4283 | _upb_value_setval(val, chain->val.val, t->ctype); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4284 | } |
| 4285 | if (chain->next) { |
| 4286 | upb_tabent *move = (upb_tabent*)chain->next; |
| 4287 | *chain = *move; |
| 4288 | if (removed) *removed = move->key; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4289 | move->key = 0; /* Make the slot empty. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4290 | } else { |
| 4291 | if (removed) *removed = chain->key; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4292 | chain->key = 0; /* Make the slot empty. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4293 | } |
| 4294 | return true; |
| 4295 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4296 | /* Element to remove is either in a non-head position or not in the |
| 4297 | * table. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4298 | while (chain->next && !eql(chain->next->key, key)) |
| 4299 | chain = (upb_tabent*)chain->next; |
| 4300 | if (chain->next) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4301 | /* Found element to remove. */ |
| 4302 | upb_tabent *rm; |
| 4303 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4304 | if (val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4305 | _upb_value_setval(val, chain->next->val.val, t->ctype); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4306 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4307 | rm = (upb_tabent*)chain->next; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4308 | if (removed) *removed = rm->key; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4309 | rm->key = 0; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4310 | chain->next = rm->next; |
| 4311 | t->count--; |
| 4312 | return true; |
| 4313 | } else { |
| 4314 | return false; |
| 4315 | } |
| 4316 | } |
| 4317 | } |
| 4318 | |
| 4319 | static size_t next(const upb_table *t, size_t i) { |
| 4320 | do { |
| 4321 | if (++i >= upb_table_size(t)) |
| 4322 | return SIZE_MAX; |
| 4323 | } while(upb_tabent_isempty(&t->entries[i])); |
| 4324 | |
| 4325 | return i; |
| 4326 | } |
| 4327 | |
| 4328 | static size_t begin(const upb_table *t) { |
| 4329 | return next(t, -1); |
| 4330 | } |
| 4331 | |
| 4332 | |
| 4333 | /* upb_strtable ***************************************************************/ |
| 4334 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4335 | /* A simple "subclass" of upb_table that only adds a hash function for strings. */ |
| 4336 | |
| 4337 | static upb_tabkey strcopy(lookupkey_t k2) { |
| 4338 | char *str = malloc(k2.str.len + sizeof(uint32_t) + 1); |
| 4339 | if (str == NULL) return 0; |
| 4340 | memcpy(str, &k2.str.len, sizeof(uint32_t)); |
| 4341 | memcpy(str + sizeof(uint32_t), k2.str.str, k2.str.len + 1); |
| 4342 | return (uintptr_t)str; |
| 4343 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4344 | |
| 4345 | static uint32_t strhash(upb_tabkey key) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4346 | uint32_t len; |
| 4347 | char *str = upb_tabstr(key, &len); |
| 4348 | return MurmurHash2(str, len, 0); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4349 | } |
| 4350 | |
| 4351 | static bool streql(upb_tabkey k1, lookupkey_t k2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4352 | uint32_t len; |
| 4353 | char *str = upb_tabstr(k1, &len); |
| 4354 | return len == k2.str.len && memcmp(str, k2.str.str, len) == 0; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4355 | } |
| 4356 | |
| 4357 | bool upb_strtable_init(upb_strtable *t, upb_ctype_t ctype) { |
| 4358 | return init(&t->t, ctype, 2); |
| 4359 | } |
| 4360 | |
| 4361 | void upb_strtable_uninit(upb_strtable *t) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4362 | size_t i; |
| 4363 | for (i = 0; i < upb_table_size(&t->t); i++) |
| 4364 | free((void*)t->t.entries[i].key); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4365 | uninit(&t->t); |
| 4366 | } |
| 4367 | |
| 4368 | bool upb_strtable_resize(upb_strtable *t, size_t size_lg2) { |
| 4369 | upb_strtable new_table; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4370 | upb_strtable_iter i; |
| 4371 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4372 | if (!init(&new_table.t, t->t.ctype, size_lg2)) |
| 4373 | return false; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4374 | upb_strtable_begin(&i, t); |
| 4375 | for ( ; !upb_strtable_done(&i); upb_strtable_next(&i)) { |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 4376 | upb_strtable_insert2( |
| 4377 | &new_table, |
| 4378 | upb_strtable_iter_key(&i), |
| 4379 | upb_strtable_iter_keylength(&i), |
| 4380 | upb_strtable_iter_value(&i)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4381 | } |
| 4382 | upb_strtable_uninit(t); |
| 4383 | *t = new_table; |
| 4384 | return true; |
| 4385 | } |
| 4386 | |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 4387 | bool upb_strtable_insert2(upb_strtable *t, const char *k, size_t len, |
| 4388 | upb_value v) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4389 | lookupkey_t key; |
| 4390 | upb_tabkey tabkey; |
| 4391 | uint32_t hash; |
| 4392 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4393 | if (isfull(&t->t)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4394 | /* Need to resize. New table of double the size, add old elements to it. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4395 | if (!upb_strtable_resize(t, t->t.size_lg2 + 1)) { |
| 4396 | return false; |
| 4397 | } |
| 4398 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4399 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4400 | key = strkey2(k, len); |
| 4401 | tabkey = strcopy(key); |
| 4402 | if (tabkey == 0) return false; |
| 4403 | |
| 4404 | hash = MurmurHash2(key.str.str, key.str.len, 0); |
| 4405 | insert(&t->t, key, tabkey, v, hash, &strhash, &streql); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4406 | return true; |
| 4407 | } |
| 4408 | |
| 4409 | bool upb_strtable_lookup2(const upb_strtable *t, const char *key, size_t len, |
| 4410 | upb_value *v) { |
| 4411 | uint32_t hash = MurmurHash2(key, len, 0); |
| 4412 | return lookup(&t->t, strkey2(key, len), v, hash, &streql); |
| 4413 | } |
| 4414 | |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 4415 | bool upb_strtable_remove2(upb_strtable *t, const char *key, size_t len, |
| 4416 | upb_value *val) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4417 | uint32_t hash = MurmurHash2(key, strlen(key), 0); |
| 4418 | upb_tabkey tabkey; |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 4419 | if (rm(&t->t, strkey2(key, len), val, &tabkey, hash, &streql)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4420 | free((void*)tabkey); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4421 | return true; |
| 4422 | } else { |
| 4423 | return false; |
| 4424 | } |
| 4425 | } |
| 4426 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4427 | /* Iteration */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4428 | |
| 4429 | static const upb_tabent *str_tabent(const upb_strtable_iter *i) { |
| 4430 | return &i->t->t.entries[i->index]; |
| 4431 | } |
| 4432 | |
| 4433 | void upb_strtable_begin(upb_strtable_iter *i, const upb_strtable *t) { |
| 4434 | i->t = t; |
| 4435 | i->index = begin(&t->t); |
| 4436 | } |
| 4437 | |
| 4438 | void upb_strtable_next(upb_strtable_iter *i) { |
| 4439 | i->index = next(&i->t->t, i->index); |
| 4440 | } |
| 4441 | |
| 4442 | bool upb_strtable_done(const upb_strtable_iter *i) { |
| 4443 | return i->index >= upb_table_size(&i->t->t) || |
| 4444 | upb_tabent_isempty(str_tabent(i)); |
| 4445 | } |
| 4446 | |
| 4447 | const char *upb_strtable_iter_key(upb_strtable_iter *i) { |
| 4448 | assert(!upb_strtable_done(i)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4449 | return upb_tabstr(str_tabent(i)->key, NULL); |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 4450 | } |
| 4451 | |
| 4452 | size_t upb_strtable_iter_keylength(upb_strtable_iter *i) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4453 | uint32_t len; |
Chris Fallin | fd1a3ff | 2015-01-06 15:44:09 -0800 | [diff] [blame] | 4454 | assert(!upb_strtable_done(i)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4455 | upb_tabstr(str_tabent(i)->key, &len); |
| 4456 | return len; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4457 | } |
| 4458 | |
| 4459 | upb_value upb_strtable_iter_value(const upb_strtable_iter *i) { |
| 4460 | assert(!upb_strtable_done(i)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4461 | return _upb_value_val(str_tabent(i)->val.val, i->t->t.ctype); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4462 | } |
| 4463 | |
| 4464 | void upb_strtable_iter_setdone(upb_strtable_iter *i) { |
| 4465 | i->index = SIZE_MAX; |
| 4466 | } |
| 4467 | |
| 4468 | bool upb_strtable_iter_isequal(const upb_strtable_iter *i1, |
| 4469 | const upb_strtable_iter *i2) { |
| 4470 | if (upb_strtable_done(i1) && upb_strtable_done(i2)) |
| 4471 | return true; |
| 4472 | return i1->t == i2->t && i1->index == i2->index; |
| 4473 | } |
| 4474 | |
| 4475 | |
| 4476 | /* upb_inttable ***************************************************************/ |
| 4477 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4478 | /* For inttables we use a hybrid structure where small keys are kept in an |
| 4479 | * array and large keys are put in the hash table. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4480 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4481 | static uint32_t inthash(upb_tabkey key) { return upb_inthash(key); } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4482 | |
| 4483 | static bool inteql(upb_tabkey k1, lookupkey_t k2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4484 | return k1 == k2.num; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4485 | } |
| 4486 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4487 | static upb_tabval *mutable_array(upb_inttable *t) { |
| 4488 | return (upb_tabval*)t->array; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4489 | } |
| 4490 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4491 | static upb_tabval *inttable_val(upb_inttable *t, uintptr_t key) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4492 | if (key < t->array_size) { |
| 4493 | return upb_arrhas(t->array[key]) ? &(mutable_array(t)[key]) : NULL; |
| 4494 | } else { |
| 4495 | upb_tabent *e = |
| 4496 | findentry_mutable(&t->t, intkey(key), upb_inthash(key), &inteql); |
| 4497 | return e ? &e->val : NULL; |
| 4498 | } |
| 4499 | } |
| 4500 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4501 | static const upb_tabval *inttable_val_const(const upb_inttable *t, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4502 | uintptr_t key) { |
| 4503 | return inttable_val((upb_inttable*)t, key); |
| 4504 | } |
| 4505 | |
| 4506 | size_t upb_inttable_count(const upb_inttable *t) { |
| 4507 | return t->t.count + t->array_count; |
| 4508 | } |
| 4509 | |
| 4510 | static void check(upb_inttable *t) { |
| 4511 | UPB_UNUSED(t); |
| 4512 | #if defined(UPB_DEBUG_TABLE) && !defined(NDEBUG) |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4513 | { |
| 4514 | /* This check is very expensive (makes inserts/deletes O(N)). */ |
| 4515 | size_t count = 0; |
| 4516 | upb_inttable_iter i; |
| 4517 | upb_inttable_begin(&i, t); |
| 4518 | for(; !upb_inttable_done(&i); upb_inttable_next(&i), count++) { |
| 4519 | assert(upb_inttable_lookup(t, upb_inttable_iter_key(&i), NULL)); |
| 4520 | } |
| 4521 | assert(count == upb_inttable_count(t)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4522 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4523 | #endif |
| 4524 | } |
| 4525 | |
| 4526 | bool upb_inttable_sizedinit(upb_inttable *t, upb_ctype_t ctype, |
| 4527 | size_t asize, int hsize_lg2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4528 | size_t array_bytes; |
| 4529 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4530 | if (!init(&t->t, ctype, hsize_lg2)) return false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4531 | /* Always make the array part at least 1 long, so that we know key 0 |
| 4532 | * won't be in the hash part, which simplifies things. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4533 | t->array_size = UPB_MAX(1, asize); |
| 4534 | t->array_count = 0; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4535 | array_bytes = t->array_size * sizeof(upb_value); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4536 | t->array = malloc(array_bytes); |
| 4537 | if (!t->array) { |
| 4538 | uninit(&t->t); |
| 4539 | return false; |
| 4540 | } |
| 4541 | memset(mutable_array(t), 0xff, array_bytes); |
| 4542 | check(t); |
| 4543 | return true; |
| 4544 | } |
| 4545 | |
| 4546 | bool upb_inttable_init(upb_inttable *t, upb_ctype_t ctype) { |
| 4547 | return upb_inttable_sizedinit(t, ctype, 0, 4); |
| 4548 | } |
| 4549 | |
| 4550 | void upb_inttable_uninit(upb_inttable *t) { |
| 4551 | uninit(&t->t); |
| 4552 | free(mutable_array(t)); |
| 4553 | } |
| 4554 | |
| 4555 | bool upb_inttable_insert(upb_inttable *t, uintptr_t key, upb_value val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4556 | /* XXX: Table can't store value (uint64_t)-1. Need to somehow statically |
| 4557 | * guarantee that this is not necessary, or fix the limitation. */ |
| 4558 | upb_tabval tabval; |
| 4559 | tabval.val = val.val; |
| 4560 | UPB_UNUSED(tabval); |
| 4561 | assert(upb_arrhas(tabval)); |
| 4562 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4563 | if (key < t->array_size) { |
| 4564 | assert(!upb_arrhas(t->array[key])); |
| 4565 | t->array_count++; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4566 | mutable_array(t)[key].val = val.val; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4567 | } else { |
| 4568 | if (isfull(&t->t)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4569 | /* Need to resize the hash part, but we re-use the array part. */ |
| 4570 | size_t i; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4571 | upb_table new_table; |
| 4572 | if (!init(&new_table, t->t.ctype, t->t.size_lg2 + 1)) |
| 4573 | return false; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4574 | for (i = begin(&t->t); i < upb_table_size(&t->t); i = next(&t->t, i)) { |
| 4575 | const upb_tabent *e = &t->t.entries[i]; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4576 | uint32_t hash; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4577 | upb_value v; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4578 | |
| 4579 | _upb_value_setval(&v, e->val.val, t->t.ctype); |
| 4580 | hash = upb_inthash(e->key); |
| 4581 | insert(&new_table, intkey(e->key), e->key, v, hash, &inthash, &inteql); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4582 | } |
| 4583 | |
| 4584 | assert(t->t.count == new_table.count); |
| 4585 | |
| 4586 | uninit(&t->t); |
| 4587 | t->t = new_table; |
| 4588 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4589 | insert(&t->t, intkey(key), key, val, upb_inthash(key), &inthash, &inteql); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4590 | } |
| 4591 | check(t); |
| 4592 | return true; |
| 4593 | } |
| 4594 | |
| 4595 | bool upb_inttable_lookup(const upb_inttable *t, uintptr_t key, upb_value *v) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4596 | const upb_tabval *table_v = inttable_val_const(t, key); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4597 | if (!table_v) return false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4598 | if (v) _upb_value_setval(v, table_v->val, t->t.ctype); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4599 | return true; |
| 4600 | } |
| 4601 | |
| 4602 | bool upb_inttable_replace(upb_inttable *t, uintptr_t key, upb_value val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4603 | upb_tabval *table_v = inttable_val(t, key); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4604 | if (!table_v) return false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4605 | table_v->val = val.val; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4606 | return true; |
| 4607 | } |
| 4608 | |
| 4609 | bool upb_inttable_remove(upb_inttable *t, uintptr_t key, upb_value *val) { |
| 4610 | bool success; |
| 4611 | if (key < t->array_size) { |
| 4612 | if (upb_arrhas(t->array[key])) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4613 | upb_tabval empty = UPB_TABVALUE_EMPTY_INIT; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4614 | t->array_count--; |
| 4615 | if (val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4616 | _upb_value_setval(val, t->array[key].val, t->t.ctype); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4617 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4618 | mutable_array(t)[key] = empty; |
| 4619 | success = true; |
| 4620 | } else { |
| 4621 | success = false; |
| 4622 | } |
| 4623 | } else { |
| 4624 | upb_tabkey removed; |
| 4625 | uint32_t hash = upb_inthash(key); |
| 4626 | success = rm(&t->t, intkey(key), val, &removed, hash, &inteql); |
| 4627 | } |
| 4628 | check(t); |
| 4629 | return success; |
| 4630 | } |
| 4631 | |
| 4632 | bool upb_inttable_push(upb_inttable *t, upb_value val) { |
| 4633 | return upb_inttable_insert(t, upb_inttable_count(t), val); |
| 4634 | } |
| 4635 | |
| 4636 | upb_value upb_inttable_pop(upb_inttable *t) { |
| 4637 | upb_value val; |
| 4638 | bool ok = upb_inttable_remove(t, upb_inttable_count(t) - 1, &val); |
| 4639 | UPB_ASSERT_VAR(ok, ok); |
| 4640 | return val; |
| 4641 | } |
| 4642 | |
| 4643 | bool upb_inttable_insertptr(upb_inttable *t, const void *key, upb_value val) { |
| 4644 | return upb_inttable_insert(t, (uintptr_t)key, val); |
| 4645 | } |
| 4646 | |
| 4647 | bool upb_inttable_lookupptr(const upb_inttable *t, const void *key, |
| 4648 | upb_value *v) { |
| 4649 | return upb_inttable_lookup(t, (uintptr_t)key, v); |
| 4650 | } |
| 4651 | |
| 4652 | bool upb_inttable_removeptr(upb_inttable *t, const void *key, upb_value *val) { |
| 4653 | return upb_inttable_remove(t, (uintptr_t)key, val); |
| 4654 | } |
| 4655 | |
| 4656 | void upb_inttable_compact(upb_inttable *t) { |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4657 | /* A power-of-two histogram of the table keys. */ |
| 4658 | size_t counts[UPB_MAXARRSIZE + 1] = {0}; |
| 4659 | |
| 4660 | /* The max key in each bucket. */ |
| 4661 | uintptr_t max[UPB_MAXARRSIZE + 1] = {0}; |
| 4662 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4663 | upb_inttable_iter i; |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4664 | size_t arr_count; |
| 4665 | int size_lg2; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4666 | upb_inttable new_t; |
| 4667 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4668 | upb_inttable_begin(&i, t); |
| 4669 | for (; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
| 4670 | uintptr_t key = upb_inttable_iter_key(&i); |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4671 | int bucket = log2ceil(key); |
| 4672 | max[bucket] = UPB_MAX(max[bucket], key); |
| 4673 | counts[bucket]++; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4674 | } |
| 4675 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4676 | /* Find the largest power of two that satisfies the MIN_DENSITY |
| 4677 | * definition (while actually having some keys). */ |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4678 | arr_count = upb_inttable_count(t); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4679 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4680 | for (size_lg2 = ARRAY_SIZE(counts) - 1; size_lg2 > 0; size_lg2--) { |
| 4681 | if (counts[size_lg2] == 0) { |
| 4682 | /* We can halve again without losing any entries. */ |
| 4683 | continue; |
| 4684 | } else if (arr_count >= (1 << size_lg2) * MIN_DENSITY) { |
| 4685 | break; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4686 | } |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4687 | |
| 4688 | arr_count -= counts[size_lg2]; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4689 | } |
| 4690 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4691 | assert(arr_count <= upb_inttable_count(t)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4692 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4693 | { |
| 4694 | /* Insert all elements into new, perfectly-sized table. */ |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 4695 | size_t arr_size = max[size_lg2] + 1; /* +1 so arr[max] will fit. */ |
| 4696 | size_t hash_count = upb_inttable_count(t) - arr_count; |
| 4697 | size_t hash_size = hash_count ? (hash_count / MAX_LOAD) + 1 : 0; |
| 4698 | size_t hashsize_lg2 = log2ceil(hash_size); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4699 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4700 | upb_inttable_sizedinit(&new_t, t->t.ctype, arr_size, hashsize_lg2); |
| 4701 | upb_inttable_begin(&i, t); |
| 4702 | for (; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
| 4703 | uintptr_t k = upb_inttable_iter_key(&i); |
| 4704 | upb_inttable_insert(&new_t, k, upb_inttable_iter_value(&i)); |
| 4705 | } |
| 4706 | assert(new_t.array_size == arr_size); |
| 4707 | assert(new_t.t.size_lg2 == hashsize_lg2); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4708 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4709 | upb_inttable_uninit(t); |
| 4710 | *t = new_t; |
| 4711 | } |
| 4712 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4713 | /* Iteration. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4714 | |
| 4715 | static const upb_tabent *int_tabent(const upb_inttable_iter *i) { |
| 4716 | assert(!i->array_part); |
| 4717 | return &i->t->t.entries[i->index]; |
| 4718 | } |
| 4719 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4720 | static upb_tabval int_arrent(const upb_inttable_iter *i) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4721 | assert(i->array_part); |
| 4722 | return i->t->array[i->index]; |
| 4723 | } |
| 4724 | |
| 4725 | void upb_inttable_begin(upb_inttable_iter *i, const upb_inttable *t) { |
| 4726 | i->t = t; |
| 4727 | i->index = -1; |
| 4728 | i->array_part = true; |
| 4729 | upb_inttable_next(i); |
| 4730 | } |
| 4731 | |
| 4732 | void upb_inttable_next(upb_inttable_iter *iter) { |
| 4733 | const upb_inttable *t = iter->t; |
| 4734 | if (iter->array_part) { |
| 4735 | while (++iter->index < t->array_size) { |
| 4736 | if (upb_arrhas(int_arrent(iter))) { |
| 4737 | return; |
| 4738 | } |
| 4739 | } |
| 4740 | iter->array_part = false; |
| 4741 | iter->index = begin(&t->t); |
| 4742 | } else { |
| 4743 | iter->index = next(&t->t, iter->index); |
| 4744 | } |
| 4745 | } |
| 4746 | |
| 4747 | bool upb_inttable_done(const upb_inttable_iter *i) { |
| 4748 | if (i->array_part) { |
| 4749 | return i->index >= i->t->array_size || |
| 4750 | !upb_arrhas(int_arrent(i)); |
| 4751 | } else { |
| 4752 | return i->index >= upb_table_size(&i->t->t) || |
| 4753 | upb_tabent_isempty(int_tabent(i)); |
| 4754 | } |
| 4755 | } |
| 4756 | |
| 4757 | uintptr_t upb_inttable_iter_key(const upb_inttable_iter *i) { |
| 4758 | assert(!upb_inttable_done(i)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4759 | return i->array_part ? i->index : int_tabent(i)->key; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4760 | } |
| 4761 | |
| 4762 | upb_value upb_inttable_iter_value(const upb_inttable_iter *i) { |
| 4763 | assert(!upb_inttable_done(i)); |
| 4764 | return _upb_value_val( |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4765 | i->array_part ? i->t->array[i->index].val : int_tabent(i)->val.val, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4766 | i->t->t.ctype); |
| 4767 | } |
| 4768 | |
| 4769 | void upb_inttable_iter_setdone(upb_inttable_iter *i) { |
| 4770 | i->index = SIZE_MAX; |
| 4771 | i->array_part = false; |
| 4772 | } |
| 4773 | |
| 4774 | bool upb_inttable_iter_isequal(const upb_inttable_iter *i1, |
| 4775 | const upb_inttable_iter *i2) { |
| 4776 | if (upb_inttable_done(i1) && upb_inttable_done(i2)) |
| 4777 | return true; |
| 4778 | return i1->t == i2->t && i1->index == i2->index && |
| 4779 | i1->array_part == i2->array_part; |
| 4780 | } |
| 4781 | |
| 4782 | #ifdef UPB_UNALIGNED_READS_OK |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4783 | /* ----------------------------------------------------------------------------- |
| 4784 | * MurmurHash2, by Austin Appleby (released as public domain). |
| 4785 | * Reformatted and C99-ified by Joshua Haberman. |
| 4786 | * Note - This code makes a few assumptions about how your machine behaves - |
| 4787 | * 1. We can read a 4-byte value from any address without crashing |
| 4788 | * 2. sizeof(int) == 4 (in upb this limitation is removed by using uint32_t |
| 4789 | * And it has a few limitations - |
| 4790 | * 1. It will not work incrementally. |
| 4791 | * 2. It will not produce the same results on little-endian and big-endian |
| 4792 | * machines. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4793 | uint32_t MurmurHash2(const void *key, size_t len, uint32_t seed) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4794 | /* 'm' and 'r' are mixing constants generated offline. |
| 4795 | * They're not really 'magic', they just happen to work well. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4796 | const uint32_t m = 0x5bd1e995; |
| 4797 | const int32_t r = 24; |
| 4798 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4799 | /* Initialize the hash to a 'random' value */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4800 | uint32_t h = seed ^ len; |
| 4801 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4802 | /* Mix 4 bytes at a time into the hash */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4803 | const uint8_t * data = (const uint8_t *)key; |
| 4804 | while(len >= 4) { |
| 4805 | uint32_t k = *(uint32_t *)data; |
| 4806 | |
| 4807 | k *= m; |
| 4808 | k ^= k >> r; |
| 4809 | k *= m; |
| 4810 | |
| 4811 | h *= m; |
| 4812 | h ^= k; |
| 4813 | |
| 4814 | data += 4; |
| 4815 | len -= 4; |
| 4816 | } |
| 4817 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4818 | /* Handle the last few bytes of the input array */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4819 | switch(len) { |
| 4820 | case 3: h ^= data[2] << 16; |
| 4821 | case 2: h ^= data[1] << 8; |
| 4822 | case 1: h ^= data[0]; h *= m; |
| 4823 | }; |
| 4824 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4825 | /* Do a few final mixes of the hash to ensure the last few |
| 4826 | * bytes are well-incorporated. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4827 | h ^= h >> 13; |
| 4828 | h *= m; |
| 4829 | h ^= h >> 15; |
| 4830 | |
| 4831 | return h; |
| 4832 | } |
| 4833 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4834 | #else /* !UPB_UNALIGNED_READS_OK */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4835 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4836 | /* ----------------------------------------------------------------------------- |
| 4837 | * MurmurHashAligned2, by Austin Appleby |
| 4838 | * Same algorithm as MurmurHash2, but only does aligned reads - should be safer |
| 4839 | * on certain platforms. |
| 4840 | * Performance will be lower than MurmurHash2 */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4841 | |
| 4842 | #define MIX(h,k,m) { k *= m; k ^= k >> r; k *= m; h *= m; h ^= k; } |
| 4843 | |
| 4844 | uint32_t MurmurHash2(const void * key, size_t len, uint32_t seed) { |
| 4845 | const uint32_t m = 0x5bd1e995; |
| 4846 | const int32_t r = 24; |
| 4847 | const uint8_t * data = (const uint8_t *)key; |
| 4848 | uint32_t h = seed ^ len; |
| 4849 | uint8_t align = (uintptr_t)data & 3; |
| 4850 | |
| 4851 | if(align && (len >= 4)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4852 | /* Pre-load the temp registers */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4853 | uint32_t t = 0, d = 0; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4854 | int32_t sl; |
| 4855 | int32_t sr; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4856 | |
| 4857 | switch(align) { |
| 4858 | case 1: t |= data[2] << 16; |
| 4859 | case 2: t |= data[1] << 8; |
| 4860 | case 3: t |= data[0]; |
| 4861 | } |
| 4862 | |
| 4863 | t <<= (8 * align); |
| 4864 | |
| 4865 | data += 4-align; |
| 4866 | len -= 4-align; |
| 4867 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4868 | sl = 8 * (4-align); |
| 4869 | sr = 8 * align; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4870 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4871 | /* Mix */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4872 | |
| 4873 | while(len >= 4) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4874 | uint32_t k; |
| 4875 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4876 | d = *(uint32_t *)data; |
| 4877 | t = (t >> sr) | (d << sl); |
| 4878 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4879 | k = t; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4880 | |
| 4881 | MIX(h,k,m); |
| 4882 | |
| 4883 | t = d; |
| 4884 | |
| 4885 | data += 4; |
| 4886 | len -= 4; |
| 4887 | } |
| 4888 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4889 | /* Handle leftover data in temp registers */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4890 | |
| 4891 | d = 0; |
| 4892 | |
| 4893 | if(len >= align) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4894 | uint32_t k; |
| 4895 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4896 | switch(align) { |
| 4897 | case 3: d |= data[2] << 16; |
| 4898 | case 2: d |= data[1] << 8; |
| 4899 | case 1: d |= data[0]; |
| 4900 | } |
| 4901 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4902 | k = (t >> sr) | (d << sl); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4903 | MIX(h,k,m); |
| 4904 | |
| 4905 | data += align; |
| 4906 | len -= align; |
| 4907 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4908 | /* ---------- |
| 4909 | * Handle tail bytes */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4910 | |
| 4911 | switch(len) { |
| 4912 | case 3: h ^= data[2] << 16; |
| 4913 | case 2: h ^= data[1] << 8; |
| 4914 | case 1: h ^= data[0]; h *= m; |
| 4915 | }; |
| 4916 | } else { |
| 4917 | switch(len) { |
| 4918 | case 3: d |= data[2] << 16; |
| 4919 | case 2: d |= data[1] << 8; |
| 4920 | case 1: d |= data[0]; |
| 4921 | case 0: h ^= (t >> sr) | (d << sl); h *= m; |
| 4922 | } |
| 4923 | } |
| 4924 | |
| 4925 | h ^= h >> 13; |
| 4926 | h *= m; |
| 4927 | h ^= h >> 15; |
| 4928 | |
| 4929 | return h; |
| 4930 | } else { |
| 4931 | while(len >= 4) { |
| 4932 | uint32_t k = *(uint32_t *)data; |
| 4933 | |
| 4934 | MIX(h,k,m); |
| 4935 | |
| 4936 | data += 4; |
| 4937 | len -= 4; |
| 4938 | } |
| 4939 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4940 | /* ---------- |
| 4941 | * Handle tail bytes */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4942 | |
| 4943 | switch(len) { |
| 4944 | case 3: h ^= data[2] << 16; |
| 4945 | case 2: h ^= data[1] << 8; |
| 4946 | case 1: h ^= data[0]; h *= m; |
| 4947 | }; |
| 4948 | |
| 4949 | h ^= h >> 13; |
| 4950 | h *= m; |
| 4951 | h ^= h >> 15; |
| 4952 | |
| 4953 | return h; |
| 4954 | } |
| 4955 | } |
| 4956 | #undef MIX |
| 4957 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4958 | #endif /* UPB_UNALIGNED_READS_OK */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4959 | |
| 4960 | #include <errno.h> |
| 4961 | #include <stdarg.h> |
| 4962 | #include <stddef.h> |
| 4963 | #include <stdint.h> |
| 4964 | #include <stdio.h> |
| 4965 | #include <stdlib.h> |
| 4966 | #include <string.h> |
| 4967 | |
| 4968 | bool upb_dumptostderr(void *closure, const upb_status* status) { |
| 4969 | UPB_UNUSED(closure); |
| 4970 | fprintf(stderr, "%s\n", upb_status_errmsg(status)); |
| 4971 | return false; |
| 4972 | } |
| 4973 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 4974 | /* Guarantee null-termination and provide ellipsis truncation. |
| 4975 | * It may be tempting to "optimize" this by initializing these final |
| 4976 | * four bytes up-front and then being careful never to overwrite them, |
| 4977 | * this is safer and simpler. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4978 | static void nullz(upb_status *status) { |
| 4979 | const char *ellipsis = "..."; |
| 4980 | size_t len = strlen(ellipsis); |
| 4981 | assert(sizeof(status->msg) > len); |
| 4982 | memcpy(status->msg + sizeof(status->msg) - len, ellipsis, len); |
| 4983 | } |
| 4984 | |
| 4985 | void upb_status_clear(upb_status *status) { |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 4986 | if (!status) return; |
| 4987 | status->ok_ = true; |
| 4988 | status->code_ = 0; |
| 4989 | status->msg[0] = '\0'; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 4990 | } |
| 4991 | |
| 4992 | bool upb_ok(const upb_status *status) { return status->ok_; } |
| 4993 | |
| 4994 | upb_errorspace *upb_status_errspace(const upb_status *status) { |
| 4995 | return status->error_space_; |
| 4996 | } |
| 4997 | |
| 4998 | int upb_status_errcode(const upb_status *status) { return status->code_; } |
| 4999 | |
| 5000 | const char *upb_status_errmsg(const upb_status *status) { return status->msg; } |
| 5001 | |
| 5002 | void upb_status_seterrmsg(upb_status *status, const char *msg) { |
| 5003 | if (!status) return; |
| 5004 | status->ok_ = false; |
| 5005 | strncpy(status->msg, msg, sizeof(status->msg)); |
| 5006 | nullz(status); |
| 5007 | } |
| 5008 | |
| 5009 | void upb_status_seterrf(upb_status *status, const char *fmt, ...) { |
| 5010 | va_list args; |
| 5011 | va_start(args, fmt); |
| 5012 | upb_status_vseterrf(status, fmt, args); |
| 5013 | va_end(args); |
| 5014 | } |
| 5015 | |
| 5016 | void upb_status_vseterrf(upb_status *status, const char *fmt, va_list args) { |
| 5017 | if (!status) return; |
| 5018 | status->ok_ = false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5019 | _upb_vsnprintf(status->msg, sizeof(status->msg), fmt, args); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5020 | nullz(status); |
| 5021 | } |
| 5022 | |
| 5023 | void upb_status_seterrcode(upb_status *status, upb_errorspace *space, |
| 5024 | int code) { |
| 5025 | if (!status) return; |
| 5026 | status->ok_ = false; |
| 5027 | status->error_space_ = space; |
| 5028 | status->code_ = code; |
| 5029 | space->set_message(status, code); |
| 5030 | } |
| 5031 | |
| 5032 | void upb_status_copy(upb_status *to, const upb_status *from) { |
| 5033 | if (!to) return; |
| 5034 | *to = *from; |
| 5035 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5036 | /* This file was generated by upbc (the upb compiler). |
| 5037 | * Do not edit -- your changes will be discarded when the file is |
| 5038 | * regenerated. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5039 | |
| 5040 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5041 | static const upb_msgdef msgs[22]; |
| 5042 | static const upb_fielddef fields[105]; |
| 5043 | static const upb_enumdef enums[5]; |
| 5044 | static const upb_tabent strentries[268]; |
| 5045 | static const upb_tabent intentries[18]; |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 5046 | static const upb_tabval arrays[184]; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5047 | |
| 5048 | #ifdef UPB_DEBUG_REFS |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5049 | static upb_inttable reftables[266]; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5050 | #endif |
| 5051 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5052 | static const upb_msgdef msgs[22] = { |
| 5053 | UPB_MSGDEF_INIT("google.protobuf.DescriptorProto", 40, 8, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[0], 11, 10), UPB_STRTABLE_INIT(10, 15, UPB_CTYPE_PTR, 4, &strentries[0]),&reftables[0], &reftables[1]), |
| 5054 | UPB_MSGDEF_INIT("google.protobuf.DescriptorProto.ExtensionRange", 4, 0, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[11], 3, 2), UPB_STRTABLE_INIT(2, 3, UPB_CTYPE_PTR, 2, &strentries[16]),&reftables[2], &reftables[3]), |
| 5055 | UPB_MSGDEF_INIT("google.protobuf.DescriptorProto.ReservedRange", 4, 0, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[14], 3, 2), UPB_STRTABLE_INIT(2, 3, UPB_CTYPE_PTR, 2, &strentries[20]),&reftables[4], &reftables[5]), |
| 5056 | UPB_MSGDEF_INIT("google.protobuf.EnumDescriptorProto", 11, 2, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[17], 4, 3), UPB_STRTABLE_INIT(3, 3, UPB_CTYPE_PTR, 2, &strentries[24]),&reftables[6], &reftables[7]), |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 5057 | UPB_MSGDEF_INIT("google.protobuf.EnumOptions", 8, 1, UPB_INTTABLE_INIT(1, 1, UPB_CTYPE_PTR, 1, &intentries[0], &arrays[21], 4, 2), UPB_STRTABLE_INIT(3, 3, UPB_CTYPE_PTR, 2, &strentries[28]),&reftables[8], &reftables[9]), |
| 5058 | UPB_MSGDEF_INIT("google.protobuf.EnumValueDescriptorProto", 8, 1, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[25], 4, 3), UPB_STRTABLE_INIT(3, 3, UPB_CTYPE_PTR, 2, &strentries[32]),&reftables[10], &reftables[11]), |
| 5059 | UPB_MSGDEF_INIT("google.protobuf.EnumValueOptions", 7, 1, UPB_INTTABLE_INIT(1, 1, UPB_CTYPE_PTR, 1, &intentries[2], &arrays[29], 2, 1), UPB_STRTABLE_INIT(2, 3, UPB_CTYPE_PTR, 2, &strentries[36]),&reftables[12], &reftables[13]), |
| 5060 | UPB_MSGDEF_INIT("google.protobuf.FieldDescriptorProto", 23, 1, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[31], 11, 10), UPB_STRTABLE_INIT(10, 15, UPB_CTYPE_PTR, 4, &strentries[40]),&reftables[14], &reftables[15]), |
| 5061 | UPB_MSGDEF_INIT("google.protobuf.FieldOptions", 12, 1, UPB_INTTABLE_INIT(1, 1, UPB_CTYPE_PTR, 1, &intentries[4], &arrays[42], 11, 6), UPB_STRTABLE_INIT(7, 15, UPB_CTYPE_PTR, 4, &strentries[56]),&reftables[16], &reftables[17]), |
| 5062 | UPB_MSGDEF_INIT("google.protobuf.FileDescriptorProto", 42, 6, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[53], 13, 12), UPB_STRTABLE_INIT(12, 15, UPB_CTYPE_PTR, 4, &strentries[72]),&reftables[18], &reftables[19]), |
| 5063 | UPB_MSGDEF_INIT("google.protobuf.FileDescriptorSet", 6, 1, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[66], 2, 1), UPB_STRTABLE_INIT(1, 3, UPB_CTYPE_PTR, 2, &strentries[88]),&reftables[20], &reftables[21]), |
| 5064 | UPB_MSGDEF_INIT("google.protobuf.FileOptions", 31, 1, UPB_INTTABLE_INIT(1, 1, UPB_CTYPE_PTR, 1, &intentries[6], &arrays[68], 39, 15), UPB_STRTABLE_INIT(16, 31, UPB_CTYPE_PTR, 5, &strentries[92]),&reftables[22], &reftables[23]), |
| 5065 | UPB_MSGDEF_INIT("google.protobuf.MessageOptions", 10, 1, UPB_INTTABLE_INIT(1, 1, UPB_CTYPE_PTR, 1, &intentries[8], &arrays[107], 8, 4), UPB_STRTABLE_INIT(5, 7, UPB_CTYPE_PTR, 3, &strentries[124]),&reftables[24], &reftables[25]), |
| 5066 | UPB_MSGDEF_INIT("google.protobuf.MethodDescriptorProto", 15, 1, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[115], 7, 6), UPB_STRTABLE_INIT(6, 7, UPB_CTYPE_PTR, 3, &strentries[132]),&reftables[26], &reftables[27]), |
| 5067 | UPB_MSGDEF_INIT("google.protobuf.MethodOptions", 7, 1, UPB_INTTABLE_INIT(2, 3, UPB_CTYPE_PTR, 2, &intentries[10], &arrays[122], 1, 0), UPB_STRTABLE_INIT(2, 3, UPB_CTYPE_PTR, 2, &strentries[140]),&reftables[28], &reftables[29]), |
| 5068 | UPB_MSGDEF_INIT("google.protobuf.OneofDescriptorProto", 5, 0, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[123], 2, 1), UPB_STRTABLE_INIT(1, 3, UPB_CTYPE_PTR, 2, &strentries[144]),&reftables[30], &reftables[31]), |
| 5069 | UPB_MSGDEF_INIT("google.protobuf.ServiceDescriptorProto", 11, 2, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[125], 4, 3), UPB_STRTABLE_INIT(3, 3, UPB_CTYPE_PTR, 2, &strentries[148]),&reftables[32], &reftables[33]), |
| 5070 | UPB_MSGDEF_INIT("google.protobuf.ServiceOptions", 7, 1, UPB_INTTABLE_INIT(2, 3, UPB_CTYPE_PTR, 2, &intentries[14], &arrays[129], 1, 0), UPB_STRTABLE_INIT(2, 3, UPB_CTYPE_PTR, 2, &strentries[152]),&reftables[34], &reftables[35]), |
| 5071 | UPB_MSGDEF_INIT("google.protobuf.SourceCodeInfo", 6, 1, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[130], 2, 1), UPB_STRTABLE_INIT(1, 3, UPB_CTYPE_PTR, 2, &strentries[156]),&reftables[36], &reftables[37]), |
| 5072 | UPB_MSGDEF_INIT("google.protobuf.SourceCodeInfo.Location", 19, 0, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[132], 7, 5), UPB_STRTABLE_INIT(5, 7, UPB_CTYPE_PTR, 3, &strentries[160]),&reftables[38], &reftables[39]), |
| 5073 | UPB_MSGDEF_INIT("google.protobuf.UninterpretedOption", 18, 1, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[139], 9, 7), UPB_STRTABLE_INIT(7, 15, UPB_CTYPE_PTR, 4, &strentries[168]),&reftables[40], &reftables[41]), |
| 5074 | UPB_MSGDEF_INIT("google.protobuf.UninterpretedOption.NamePart", 6, 0, UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_PTR, 0, NULL, &arrays[148], 3, 2), UPB_STRTABLE_INIT(2, 3, UPB_CTYPE_PTR, 2, &strentries[184]),&reftables[42], &reftables[43]), |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5075 | }; |
| 5076 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5077 | static const upb_fielddef fields[105] = { |
| 5078 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "aggregate_value", 8, &msgs[20], NULL, 15, 6, {0},&reftables[44], &reftables[45]), |
| 5079 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "allow_alias", 2, &msgs[4], NULL, 6, 1, {0},&reftables[46], &reftables[47]), |
| 5080 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "cc_enable_arenas", 31, &msgs[11], NULL, 23, 12, {0},&reftables[48], &reftables[49]), |
| 5081 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "cc_generic_services", 16, &msgs[11], NULL, 17, 6, {0},&reftables[50], &reftables[51]), |
| 5082 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "client_streaming", 5, &msgs[13], NULL, 13, 4, {0},&reftables[52], &reftables[53]), |
| 5083 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "csharp_namespace", 37, &msgs[11], NULL, 27, 14, {0},&reftables[54], &reftables[55]), |
| 5084 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_ENUM, 0, false, false, false, false, "ctype", 1, &msgs[8], (const upb_def*)(&enums[2]), 6, 1, {0},&reftables[56], &reftables[57]), |
| 5085 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "default_value", 7, &msgs[7], NULL, 16, 7, {0},&reftables[58], &reftables[59]), |
| 5086 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_STRING, 0, false, false, false, false, "dependency", 3, &msgs[9], NULL, 30, 8, {0},&reftables[60], &reftables[61]), |
| 5087 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "deprecated", 1, &msgs[6], NULL, 6, 1, {0},&reftables[62], &reftables[63]), |
| 5088 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "deprecated", 3, &msgs[4], NULL, 7, 2, {0},&reftables[64], &reftables[65]), |
| 5089 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "deprecated", 33, &msgs[17], NULL, 6, 1, {0},&reftables[66], &reftables[67]), |
| 5090 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "deprecated", 3, &msgs[8], NULL, 8, 3, {0},&reftables[68], &reftables[69]), |
| 5091 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "deprecated", 33, &msgs[14], NULL, 6, 1, {0},&reftables[70], &reftables[71]), |
| 5092 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "deprecated", 3, &msgs[12], NULL, 8, 3, {0},&reftables[72], &reftables[73]), |
| 5093 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "deprecated", 23, &msgs[11], NULL, 21, 10, {0},&reftables[74], &reftables[75]), |
| 5094 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_DOUBLE, 0, false, false, false, false, "double_value", 6, &msgs[20], NULL, 11, 4, {0},&reftables[76], &reftables[77]), |
| 5095 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "end", 2, &msgs[2], NULL, 3, 1, {0},&reftables[78], &reftables[79]), |
| 5096 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "end", 2, &msgs[1], NULL, 3, 1, {0},&reftables[80], &reftables[81]), |
| 5097 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "enum_type", 5, &msgs[9], (const upb_def*)(&msgs[3]), 13, 1, {0},&reftables[82], &reftables[83]), |
| 5098 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "enum_type", 4, &msgs[0], (const upb_def*)(&msgs[3]), 18, 2, {0},&reftables[84], &reftables[85]), |
| 5099 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "extendee", 2, &msgs[7], NULL, 7, 2, {0},&reftables[86], &reftables[87]), |
| 5100 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "extension", 6, &msgs[0], (const upb_def*)(&msgs[7]), 24, 4, {0},&reftables[88], &reftables[89]), |
| 5101 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "extension", 7, &msgs[9], (const upb_def*)(&msgs[7]), 19, 3, {0},&reftables[90], &reftables[91]), |
| 5102 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "extension_range", 5, &msgs[0], (const upb_def*)(&msgs[1]), 21, 3, {0},&reftables[92], &reftables[93]), |
| 5103 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "field", 2, &msgs[0], (const upb_def*)(&msgs[7]), 12, 0, {0},&reftables[94], &reftables[95]), |
| 5104 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "file", 1, &msgs[10], (const upb_def*)(&msgs[9]), 5, 0, {0},&reftables[96], &reftables[97]), |
| 5105 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "go_package", 11, &msgs[11], NULL, 14, 5, {0},&reftables[98], &reftables[99]), |
| 5106 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "identifier_value", 3, &msgs[20], NULL, 6, 1, {0},&reftables[100], &reftables[101]), |
| 5107 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "input_type", 2, &msgs[13], NULL, 7, 2, {0},&reftables[102], &reftables[103]), |
| 5108 | UPB_FIELDDEF_INIT(UPB_LABEL_REQUIRED, UPB_TYPE_BOOL, 0, false, false, false, false, "is_extension", 2, &msgs[21], NULL, 5, 1, {0},&reftables[104], &reftables[105]), |
| 5109 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "java_generate_equals_and_hash", 20, &msgs[11], NULL, 20, 9, {0},&reftables[106], &reftables[107]), |
| 5110 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "java_generic_services", 17, &msgs[11], NULL, 18, 7, {0},&reftables[108], &reftables[109]), |
| 5111 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "java_multiple_files", 10, &msgs[11], NULL, 13, 4, {0},&reftables[110], &reftables[111]), |
| 5112 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "java_outer_classname", 8, &msgs[11], NULL, 9, 2, {0},&reftables[112], &reftables[113]), |
| 5113 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "java_package", 1, &msgs[11], NULL, 6, 1, {0},&reftables[114], &reftables[115]), |
| 5114 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "java_string_check_utf8", 27, &msgs[11], NULL, 22, 11, {0},&reftables[116], &reftables[117]), |
| 5115 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "javanano_use_deprecated_package", 38, &msgs[11], NULL, 30, 15, {0},&reftables[118], &reftables[119]), |
| 5116 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "json_name", 10, &msgs[7], NULL, 20, 9, {0},&reftables[120], &reftables[121]), |
| 5117 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_ENUM, 0, false, false, false, false, "jstype", 6, &msgs[8], (const upb_def*)(&enums[3]), 10, 5, {0},&reftables[122], &reftables[123]), |
| 5118 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_ENUM, 0, false, false, false, false, "label", 4, &msgs[7], (const upb_def*)(&enums[0]), 11, 4, {0},&reftables[124], &reftables[125]), |
| 5119 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "lazy", 5, &msgs[8], NULL, 9, 4, {0},&reftables[126], &reftables[127]), |
| 5120 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "leading_comments", 3, &msgs[19], NULL, 8, 2, {0},&reftables[128], &reftables[129]), |
| 5121 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_STRING, 0, false, false, false, false, "leading_detached_comments", 6, &msgs[19], NULL, 16, 4, {0},&reftables[130], &reftables[131]), |
| 5122 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "location", 1, &msgs[18], (const upb_def*)(&msgs[19]), 5, 0, {0},&reftables[132], &reftables[133]), |
| 5123 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "map_entry", 7, &msgs[12], NULL, 9, 4, {0},&reftables[134], &reftables[135]), |
| 5124 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "message_set_wire_format", 1, &msgs[12], NULL, 6, 1, {0},&reftables[136], &reftables[137]), |
| 5125 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "message_type", 4, &msgs[9], (const upb_def*)(&msgs[0]), 10, 0, {0},&reftables[138], &reftables[139]), |
| 5126 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "method", 2, &msgs[16], (const upb_def*)(&msgs[13]), 6, 0, {0},&reftables[140], &reftables[141]), |
| 5127 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "name", 1, &msgs[9], NULL, 22, 6, {0},&reftables[142], &reftables[143]), |
| 5128 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "name", 1, &msgs[5], NULL, 4, 1, {0},&reftables[144], &reftables[145]), |
| 5129 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "name", 1, &msgs[13], NULL, 4, 1, {0},&reftables[146], &reftables[147]), |
| 5130 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "name", 1, &msgs[0], NULL, 32, 8, {0},&reftables[148], &reftables[149]), |
| 5131 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "name", 1, &msgs[3], NULL, 8, 2, {0},&reftables[150], &reftables[151]), |
| 5132 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "name", 1, &msgs[15], NULL, 2, 0, {0},&reftables[152], &reftables[153]), |
| 5133 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "name", 1, &msgs[16], NULL, 8, 2, {0},&reftables[154], &reftables[155]), |
| 5134 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "name", 1, &msgs[7], NULL, 4, 1, {0},&reftables[156], &reftables[157]), |
| 5135 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "name", 2, &msgs[20], (const upb_def*)(&msgs[21]), 5, 0, {0},&reftables[158], &reftables[159]), |
| 5136 | UPB_FIELDDEF_INIT(UPB_LABEL_REQUIRED, UPB_TYPE_STRING, 0, false, false, false, false, "name_part", 1, &msgs[21], NULL, 2, 0, {0},&reftables[160], &reftables[161]), |
| 5137 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_INT64, UPB_INTFMT_VARIABLE, false, false, false, false, "negative_int_value", 5, &msgs[20], NULL, 10, 3, {0},&reftables[162], &reftables[163]), |
| 5138 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "nested_type", 3, &msgs[0], (const upb_def*)(&msgs[0]), 15, 1, {0},&reftables[164], &reftables[165]), |
| 5139 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "no_standard_descriptor_accessor", 2, &msgs[12], NULL, 7, 2, {0},&reftables[166], &reftables[167]), |
| 5140 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "number", 3, &msgs[7], NULL, 10, 3, {0},&reftables[168], &reftables[169]), |
| 5141 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "number", 2, &msgs[5], NULL, 7, 2, {0},&reftables[170], &reftables[171]), |
| 5142 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "objc_class_prefix", 36, &msgs[11], NULL, 24, 13, {0},&reftables[172], &reftables[173]), |
| 5143 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "oneof_decl", 8, &msgs[0], (const upb_def*)(&msgs[15]), 28, 6, {0},&reftables[174], &reftables[175]), |
| 5144 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "oneof_index", 9, &msgs[7], NULL, 19, 8, {0},&reftables[176], &reftables[177]), |
| 5145 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_ENUM, 0, false, false, false, false, "optimize_for", 9, &msgs[11], (const upb_def*)(&enums[4]), 12, 3, {0},&reftables[178], &reftables[179]), |
| 5146 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_MESSAGE, 0, false, false, false, false, "options", 4, &msgs[13], (const upb_def*)(&msgs[14]), 3, 0, {0},&reftables[180], &reftables[181]), |
| 5147 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_MESSAGE, 0, false, false, false, false, "options", 3, &msgs[3], (const upb_def*)(&msgs[4]), 7, 1, {0},&reftables[182], &reftables[183]), |
| 5148 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_MESSAGE, 0, false, false, false, false, "options", 7, &msgs[0], (const upb_def*)(&msgs[12]), 25, 5, {0},&reftables[184], &reftables[185]), |
| 5149 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_MESSAGE, 0, false, false, false, false, "options", 3, &msgs[5], (const upb_def*)(&msgs[6]), 3, 0, {0},&reftables[186], &reftables[187]), |
| 5150 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_MESSAGE, 0, false, false, false, false, "options", 8, &msgs[9], (const upb_def*)(&msgs[11]), 20, 4, {0},&reftables[188], &reftables[189]), |
| 5151 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_MESSAGE, 0, false, false, false, false, "options", 3, &msgs[16], (const upb_def*)(&msgs[17]), 7, 1, {0},&reftables[190], &reftables[191]), |
| 5152 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_MESSAGE, 0, false, false, false, false, "options", 8, &msgs[7], (const upb_def*)(&msgs[8]), 3, 0, {0},&reftables[192], &reftables[193]), |
| 5153 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "output_type", 3, &msgs[13], NULL, 10, 3, {0},&reftables[194], &reftables[195]), |
| 5154 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "package", 2, &msgs[9], NULL, 25, 7, {0},&reftables[196], &reftables[197]), |
| 5155 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "packed", 2, &msgs[8], NULL, 7, 2, {0},&reftables[198], &reftables[199]), |
| 5156 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, true, "path", 1, &msgs[19], NULL, 4, 0, {0},&reftables[200], &reftables[201]), |
| 5157 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_UINT64, UPB_INTFMT_VARIABLE, false, false, false, false, "positive_int_value", 4, &msgs[20], NULL, 9, 2, {0},&reftables[202], &reftables[203]), |
| 5158 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "public_dependency", 10, &msgs[9], NULL, 35, 9, {0},&reftables[204], &reftables[205]), |
| 5159 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "py_generic_services", 18, &msgs[11], NULL, 19, 8, {0},&reftables[206], &reftables[207]), |
| 5160 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_STRING, 0, false, false, false, false, "reserved_name", 10, &msgs[0], NULL, 37, 9, {0},&reftables[208], &reftables[209]), |
| 5161 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "reserved_range", 9, &msgs[0], (const upb_def*)(&msgs[2]), 31, 7, {0},&reftables[210], &reftables[211]), |
| 5162 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "server_streaming", 6, &msgs[13], NULL, 14, 5, {0},&reftables[212], &reftables[213]), |
| 5163 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "service", 6, &msgs[9], (const upb_def*)(&msgs[16]), 16, 2, {0},&reftables[214], &reftables[215]), |
| 5164 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_MESSAGE, 0, false, false, false, false, "source_code_info", 9, &msgs[9], (const upb_def*)(&msgs[18]), 21, 5, {0},&reftables[216], &reftables[217]), |
| 5165 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, true, "span", 2, &msgs[19], NULL, 7, 1, {0},&reftables[218], &reftables[219]), |
| 5166 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "start", 1, &msgs[1], NULL, 2, 0, {0},&reftables[220], &reftables[221]), |
| 5167 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "start", 1, &msgs[2], NULL, 2, 0, {0},&reftables[222], &reftables[223]), |
| 5168 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BYTES, 0, false, false, false, false, "string_value", 7, &msgs[20], NULL, 12, 5, {0},&reftables[224], &reftables[225]), |
| 5169 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "syntax", 12, &msgs[9], NULL, 39, 11, {0},&reftables[226], &reftables[227]), |
| 5170 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "trailing_comments", 4, &msgs[19], NULL, 11, 3, {0},&reftables[228], &reftables[229]), |
| 5171 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_ENUM, 0, false, false, false, false, "type", 5, &msgs[7], (const upb_def*)(&enums[1]), 12, 5, {0},&reftables[230], &reftables[231]), |
| 5172 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_STRING, 0, false, false, false, false, "type_name", 6, &msgs[7], NULL, 13, 6, {0},&reftables[232], &reftables[233]), |
| 5173 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "uninterpreted_option", 999, &msgs[17], (const upb_def*)(&msgs[20]), 5, 0, {0},&reftables[234], &reftables[235]), |
| 5174 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "uninterpreted_option", 999, &msgs[12], (const upb_def*)(&msgs[20]), 5, 0, {0},&reftables[236], &reftables[237]), |
| 5175 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "uninterpreted_option", 999, &msgs[8], (const upb_def*)(&msgs[20]), 5, 0, {0},&reftables[238], &reftables[239]), |
| 5176 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "uninterpreted_option", 999, &msgs[14], (const upb_def*)(&msgs[20]), 5, 0, {0},&reftables[240], &reftables[241]), |
| 5177 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "uninterpreted_option", 999, &msgs[11], (const upb_def*)(&msgs[20]), 5, 0, {0},&reftables[242], &reftables[243]), |
| 5178 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "uninterpreted_option", 999, &msgs[4], (const upb_def*)(&msgs[20]), 5, 0, {0},&reftables[244], &reftables[245]), |
| 5179 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "uninterpreted_option", 999, &msgs[6], (const upb_def*)(&msgs[20]), 5, 0, {0},&reftables[246], &reftables[247]), |
| 5180 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_MESSAGE, 0, false, false, false, false, "value", 2, &msgs[3], (const upb_def*)(&msgs[5]), 6, 0, {0},&reftables[248], &reftables[249]), |
| 5181 | UPB_FIELDDEF_INIT(UPB_LABEL_OPTIONAL, UPB_TYPE_BOOL, 0, false, false, false, false, "weak", 10, &msgs[8], NULL, 11, 6, {0},&reftables[250], &reftables[251]), |
| 5182 | UPB_FIELDDEF_INIT(UPB_LABEL_REPEATED, UPB_TYPE_INT32, UPB_INTFMT_VARIABLE, false, false, false, false, "weak_dependency", 11, &msgs[9], NULL, 38, 10, {0},&reftables[252], &reftables[253]), |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5183 | }; |
| 5184 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5185 | static const upb_enumdef enums[5] = { |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 5186 | UPB_ENUMDEF_INIT("google.protobuf.FieldDescriptorProto.Label", UPB_STRTABLE_INIT(3, 3, UPB_CTYPE_INT32, 2, &strentries[188]), UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_CSTR, 0, NULL, &arrays[151], 4, 3), 0, &reftables[254], &reftables[255]), |
| 5187 | UPB_ENUMDEF_INIT("google.protobuf.FieldDescriptorProto.Type", UPB_STRTABLE_INIT(18, 31, UPB_CTYPE_INT32, 5, &strentries[192]), UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_CSTR, 0, NULL, &arrays[155], 19, 18), 0, &reftables[256], &reftables[257]), |
| 5188 | UPB_ENUMDEF_INIT("google.protobuf.FieldOptions.CType", UPB_STRTABLE_INIT(3, 3, UPB_CTYPE_INT32, 2, &strentries[224]), UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_CSTR, 0, NULL, &arrays[174], 3, 3), 0, &reftables[258], &reftables[259]), |
| 5189 | UPB_ENUMDEF_INIT("google.protobuf.FieldOptions.JSType", UPB_STRTABLE_INIT(3, 3, UPB_CTYPE_INT32, 2, &strentries[228]), UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_CSTR, 0, NULL, &arrays[177], 3, 3), 0, &reftables[260], &reftables[261]), |
| 5190 | UPB_ENUMDEF_INIT("google.protobuf.FileOptions.OptimizeMode", UPB_STRTABLE_INIT(3, 3, UPB_CTYPE_INT32, 2, &strentries[232]), UPB_INTTABLE_INIT(0, 0, UPB_CTYPE_CSTR, 0, NULL, &arrays[180], 4, 3), 0, &reftables[262], &reftables[263]), |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5191 | }; |
| 5192 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5193 | static const upb_tabent strentries[268] = { |
| 5194 | {UPB_TABKEY_STR("\011", "\000", "\000", "\000", "extension"), UPB_TABVALUE_PTR_INIT(&fields[22]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5195 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5196 | {UPB_TABKEY_STR("\015", "\000", "\000", "\000", "reserved_name"), UPB_TABVALUE_PTR_INIT(&fields[82]), NULL}, |
| 5197 | {UPB_TABKEY_STR("\004", "\000", "\000", "\000", "name"), UPB_TABVALUE_PTR_INIT(&fields[52]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5198 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5199 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5200 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5201 | {UPB_TABKEY_STR("\005", "\000", "\000", "\000", "field"), UPB_TABVALUE_PTR_INIT(&fields[25]), &strentries[12]}, |
| 5202 | {UPB_TABKEY_STR("\017", "\000", "\000", "\000", "extension_range"), UPB_TABVALUE_PTR_INIT(&fields[24]), &strentries[14]}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5203 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5204 | {UPB_TABKEY_STR("\013", "\000", "\000", "\000", "nested_type"), UPB_TABVALUE_PTR_INIT(&fields[60]), NULL}, |
| 5205 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5206 | {UPB_TABKEY_STR("\016", "\000", "\000", "\000", "reserved_range"), UPB_TABVALUE_PTR_INIT(&fields[83]), NULL}, |
| 5207 | {UPB_TABKEY_STR("\007", "\000", "\000", "\000", "options"), UPB_TABVALUE_PTR_INIT(&fields[70]), NULL}, |
| 5208 | {UPB_TABKEY_STR("\012", "\000", "\000", "\000", "oneof_decl"), UPB_TABVALUE_PTR_INIT(&fields[65]), NULL}, |
| 5209 | {UPB_TABKEY_STR("\011", "\000", "\000", "\000", "enum_type"), UPB_TABVALUE_PTR_INIT(&fields[20]), &strentries[13]}, |
| 5210 | {UPB_TABKEY_STR("\005", "\000", "\000", "\000", "start"), UPB_TABVALUE_PTR_INIT(&fields[88]), NULL}, |
| 5211 | {UPB_TABKEY_STR("\003", "\000", "\000", "\000", "end"), UPB_TABVALUE_PTR_INIT(&fields[18]), NULL}, |
| 5212 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5213 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5214 | {UPB_TABKEY_STR("\005", "\000", "\000", "\000", "start"), UPB_TABVALUE_PTR_INIT(&fields[89]), NULL}, |
| 5215 | {UPB_TABKEY_STR("\003", "\000", "\000", "\000", "end"), UPB_TABVALUE_PTR_INIT(&fields[17]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5216 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5217 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5218 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5219 | {UPB_TABKEY_STR("\005", "\000", "\000", "\000", "value"), UPB_TABVALUE_PTR_INIT(&fields[102]), NULL}, |
| 5220 | {UPB_TABKEY_STR("\007", "\000", "\000", "\000", "options"), UPB_TABVALUE_PTR_INIT(&fields[69]), NULL}, |
| 5221 | {UPB_TABKEY_STR("\004", "\000", "\000", "\000", "name"), UPB_TABVALUE_PTR_INIT(&fields[53]), &strentries[26]}, |
| 5222 | {UPB_TABKEY_STR("\024", "\000", "\000", "\000", "uninterpreted_option"), UPB_TABVALUE_PTR_INIT(&fields[100]), NULL}, |
| 5223 | {UPB_TABKEY_STR("\012", "\000", "\000", "\000", "deprecated"), UPB_TABVALUE_PTR_INIT(&fields[10]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5224 | {UPB_TABKEY_STR("\013", "\000", "\000", "\000", "allow_alias"), UPB_TABVALUE_PTR_INIT(&fields[1]), NULL}, |
| 5225 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5226 | {UPB_TABKEY_STR("\006", "\000", "\000", "\000", "number"), UPB_TABVALUE_PTR_INIT(&fields[63]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5227 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5228 | {UPB_TABKEY_STR("\007", "\000", "\000", "\000", "options"), UPB_TABVALUE_PTR_INIT(&fields[71]), NULL}, |
| 5229 | {UPB_TABKEY_STR("\004", "\000", "\000", "\000", "name"), UPB_TABVALUE_PTR_INIT(&fields[50]), &strentries[34]}, |
| 5230 | {UPB_TABKEY_STR("\024", "\000", "\000", "\000", "uninterpreted_option"), UPB_TABVALUE_PTR_INIT(&fields[101]), NULL}, |
| 5231 | {UPB_TABKEY_STR("\012", "\000", "\000", "\000", "deprecated"), UPB_TABVALUE_PTR_INIT(&fields[9]), NULL}, |
| 5232 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5233 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5234 | {UPB_TABKEY_STR("\013", "\000", "\000", "\000", "oneof_index"), UPB_TABVALUE_PTR_INIT(&fields[66]), NULL}, |
| 5235 | {UPB_TABKEY_STR("\005", "\000", "\000", "\000", "label"), UPB_TABVALUE_PTR_INIT(&fields[40]), NULL}, |
| 5236 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5237 | {UPB_TABKEY_STR("\004", "\000", "\000", "\000", "name"), UPB_TABVALUE_PTR_INIT(&fields[56]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5238 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5239 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5240 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5241 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5242 | {UPB_TABKEY_STR("\006", "\000", "\000", "\000", "number"), UPB_TABVALUE_PTR_INIT(&fields[62]), &strentries[53]}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5243 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5244 | {UPB_TABKEY_STR("\010", "\000", "\000", "\000", "extendee"), UPB_TABVALUE_PTR_INIT(&fields[21]), NULL}, |
| 5245 | {UPB_TABKEY_STR("\011", "\000", "\000", "\000", "type_name"), UPB_TABVALUE_PTR_INIT(&fields[94]), NULL}, |
| 5246 | {UPB_TABKEY_STR("\011", "\000", "\000", "\000", "json_name"), UPB_TABVALUE_PTR_INIT(&fields[38]), NULL}, |
| 5247 | {UPB_TABKEY_STR("\004", "\000", "\000", "\000", "type"), UPB_TABVALUE_PTR_INIT(&fields[93]), &strentries[50]}, |
| 5248 | {UPB_TABKEY_STR("\015", "\000", "\000", "\000", "default_value"), UPB_TABVALUE_PTR_INIT(&fields[7]), NULL}, |
| 5249 | {UPB_TABKEY_STR("\007", "\000", "\000", "\000", "options"), UPB_TABVALUE_PTR_INIT(&fields[74]), NULL}, |
| 5250 | {UPB_TABKEY_STR("\024", "\000", "\000", "\000", "uninterpreted_option"), UPB_TABVALUE_PTR_INIT(&fields[97]), NULL}, |
| 5251 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5252 | {UPB_TABKEY_STR("\004", "\000", "\000", "\000", "weak"), UPB_TABVALUE_PTR_INIT(&fields[103]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5253 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5254 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5255 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5256 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5257 | {UPB_TABKEY_STR("\006", "\000", "\000", "\000", "packed"), UPB_TABVALUE_PTR_INIT(&fields[77]), NULL}, |
| 5258 | {UPB_TABKEY_STR("\004", "\000", "\000", "\000", "lazy"), UPB_TABVALUE_PTR_INIT(&fields[41]), NULL}, |
| 5259 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5260 | {UPB_TABKEY_STR("\005", "\000", "\000", "\000", "ctype"), UPB_TABVALUE_PTR_INIT(&fields[6]), NULL}, |
| 5261 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5262 | {UPB_TABKEY_STR("\006", "\000", "\000", "\000", "jstype"), UPB_TABVALUE_PTR_INIT(&fields[39]), NULL}, |
| 5263 | {UPB_TABKEY_STR("\012", "\000", "\000", "\000", "deprecated"), UPB_TABVALUE_PTR_INIT(&fields[12]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5264 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5265 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5266 | {UPB_TABKEY_STR("\011", "\000", "\000", "\000", "extension"), UPB_TABVALUE_PTR_INIT(&fields[23]), NULL}, |
| 5267 | {UPB_TABKEY_STR("\017", "\000", "\000", "\000", "weak_dependency"), UPB_TABVALUE_PTR_INIT(&fields[104]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5268 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5269 | {UPB_TABKEY_STR("\004", "\000", "\000", "\000", "name"), UPB_TABVALUE_PTR_INIT(&fields[49]), NULL}, |
| 5270 | {UPB_TABKEY_STR("\007", "\000", "\000", "\000", "service"), UPB_TABVALUE_PTR_INIT(&fields[85]), NULL}, |
| 5271 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5272 | {UPB_TABKEY_STR("\020", "\000", "\000", "\000", "source_code_info"), UPB_TABVALUE_PTR_INIT(&fields[86]), NULL}, |
| 5273 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5274 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5275 | {UPB_TABKEY_STR("\006", "\000", "\000", "\000", "syntax"), UPB_TABVALUE_PTR_INIT(&fields[91]), NULL}, |
| 5276 | {UPB_TABKEY_STR("\012", "\000", "\000", "\000", "dependency"), UPB_TABVALUE_PTR_INIT(&fields[8]), NULL}, |
| 5277 | {UPB_TABKEY_STR("\014", "\000", "\000", "\000", "message_type"), UPB_TABVALUE_PTR_INIT(&fields[47]), NULL}, |
| 5278 | {UPB_TABKEY_STR("\007", "\000", "\000", "\000", "package"), UPB_TABVALUE_PTR_INIT(&fields[76]), NULL}, |
| 5279 | {UPB_TABKEY_STR("\007", "\000", "\000", "\000", "options"), UPB_TABVALUE_PTR_INIT(&fields[72]), &strentries[86]}, |
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Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5336 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
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Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5348 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
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Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5370 | {UPB_TABKEY_STR("\017", "\000", "\000", "\000", "aggregate_value"), UPB_TABVALUE_PTR_INIT(&fields[0]), NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5375 | {UPB_TABKEY_STR("\022", "\000", "\000", "\000", "positive_int_value"), UPB_TABVALUE_PTR_INIT(&fields[79]), NULL}, |
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Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5378 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5380 | {UPB_TABKEY_STR("\014", "\000", "\000", "\000", "is_extension"), UPB_TABVALUE_PTR_INIT(&fields[30]), NULL}, |
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Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5383 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5392 | {UPB_TABKEY_STR("\012", "\000", "\000", "\000", "TYPE_FLOAT"), UPB_TABVALUE_INT_INIT(2), &strentries[221]}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5393 | {UPB_TABKEY_STR("\013", "\000", "\000", "\000", "TYPE_DOUBLE"), UPB_TABVALUE_INT_INIT(1), NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5399 | {UPB_TABKEY_STR("\014", "\000", "\000", "\000", "TYPE_MESSAGE"), UPB_TABVALUE_INT_INIT(11), &strentries[222]}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5400 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5402 | {UPB_TABKEY_STR("\012", "\000", "\000", "\000", "TYPE_INT64"), UPB_TABVALUE_INT_INIT(3), &strentries[219]}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5403 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5420 | {UPB_TABKEY_STR("\006", "\000", "\000", "\000", "STRING"), UPB_TABVALUE_INT_INIT(0), &strentries[225]}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5421 | {UPB_TABKEY_STR("\014", "\000", "\000", "\000", "STRING_PIECE"), UPB_TABVALUE_INT_INIT(2), NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5422 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
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Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5426 | {UPB_TABKEY_STR("\011", "\000", "\000", "\000", "CODE_SIZE"), UPB_TABVALUE_INT_INIT(2), NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5427 | {UPB_TABKEY_STR("\005", "\000", "\000", "\000", "SPEED"), UPB_TABVALUE_INT_INIT(1), &strentries[235]}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5428 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5432 | {UPB_TABKEY_STR("\047", "\000", "\000", "\000", "google.protobuf.SourceCodeInfo.Location"), UPB_TABVALUE_PTR_INIT(&msgs[19]), NULL}, |
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Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5436 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5437 | {UPB_TABKEY_STR("\040", "\000", "\000", "\000", "google.protobuf.EnumValueOptions"), UPB_TABVALUE_PTR_INIT(&msgs[6]), NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5440 | {UPB_TABKEY_STR("\055", "\000", "\000", "\000", "google.protobuf.DescriptorProto.ReservedRange"), UPB_TABVALUE_PTR_INIT(&msgs[2]), NULL}, |
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Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5444 | {UPB_TABKEY_STR("\051", "\000", "\000", "\000", "google.protobuf.FieldDescriptorProto.Type"), UPB_TABVALUE_PTR_INIT(&enums[1]), NULL}, |
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Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5446 | {UPB_TABKEY_STR("\044", "\000", "\000", "\000", "google.protobuf.OneofDescriptorProto"), UPB_TABVALUE_PTR_INIT(&msgs[15]), NULL}, |
| 5447 | {UPB_TABKEY_STR("\046", "\000", "\000", "\000", "google.protobuf.ServiceDescriptorProto"), UPB_TABVALUE_PTR_INIT(&msgs[16]), NULL}, |
| 5448 | {UPB_TABKEY_STR("\034", "\000", "\000", "\000", "google.protobuf.FieldOptions"), UPB_TABVALUE_PTR_INIT(&msgs[8]), NULL}, |
| 5449 | {UPB_TABKEY_STR("\033", "\000", "\000", "\000", "google.protobuf.FileOptions"), UPB_TABVALUE_PTR_INIT(&msgs[11]), NULL}, |
| 5450 | {UPB_TABKEY_STR("\043", "\000", "\000", "\000", "google.protobuf.EnumDescriptorProto"), UPB_TABVALUE_PTR_INIT(&msgs[3]), &strentries[265]}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5451 | {UPB_TABKEY_STR("\052", "\000", "\000", "\000", "google.protobuf.FieldDescriptorProto.Label"), UPB_TABVALUE_PTR_INIT(&enums[0]), NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5452 | {UPB_TABKEY_STR("\050", "\000", "\000", "\000", "google.protobuf.FileOptions.OptimizeMode"), UPB_TABVALUE_PTR_INIT(&enums[4]), NULL}, |
| 5453 | {UPB_TABKEY_STR("\042", "\000", "\000", "\000", "google.protobuf.FieldOptions.CType"), UPB_TABVALUE_PTR_INIT(&enums[2]), &strentries[261]}, |
| 5454 | {UPB_TABKEY_STR("\043", "\000", "\000", "\000", "google.protobuf.FieldOptions.JSType"), UPB_TABVALUE_PTR_INIT(&enums[3]), NULL}, |
| 5455 | {UPB_TABKEY_STR("\033", "\000", "\000", "\000", "google.protobuf.EnumOptions"), UPB_TABVALUE_PTR_INIT(&msgs[4]), NULL}, |
| 5456 | {UPB_TABKEY_STR("\044", "\000", "\000", "\000", "google.protobuf.FieldDescriptorProto"), UPB_TABVALUE_PTR_INIT(&msgs[7]), NULL}, |
| 5457 | {UPB_TABKEY_STR("\050", "\000", "\000", "\000", "google.protobuf.EnumValueDescriptorProto"), UPB_TABVALUE_PTR_INIT(&msgs[5]), &strentries[258]}, |
| 5458 | {UPB_TABKEY_STR("\036", "\000", "\000", "\000", "google.protobuf.ServiceOptions"), UPB_TABVALUE_PTR_INIT(&msgs[17]), NULL}, |
| 5459 | {UPB_TABKEY_STR("\036", "\000", "\000", "\000", "google.protobuf.MessageOptions"), UPB_TABVALUE_PTR_INIT(&msgs[12]), NULL}, |
| 5460 | {UPB_TABKEY_STR("\035", "\000", "\000", "\000", "google.protobuf.MethodOptions"), UPB_TABVALUE_PTR_INIT(&msgs[14]), &strentries[253]}, |
| 5461 | {UPB_TABKEY_STR("\054", "\000", "\000", "\000", "google.protobuf.UninterpretedOption.NamePart"), UPB_TABVALUE_PTR_INIT(&msgs[21]), NULL}, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5462 | }; |
| 5463 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5464 | static const upb_tabent intentries[18] = { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5465 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5466 | {UPB_TABKEY_NUM(999), UPB_TABVALUE_PTR_INIT(&fields[100]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5467 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5468 | {UPB_TABKEY_NUM(999), UPB_TABVALUE_PTR_INIT(&fields[101]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5469 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5470 | {UPB_TABKEY_NUM(999), UPB_TABVALUE_PTR_INIT(&fields[97]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5471 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5472 | {UPB_TABKEY_NUM(999), UPB_TABVALUE_PTR_INIT(&fields[99]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5473 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5474 | {UPB_TABKEY_NUM(999), UPB_TABVALUE_PTR_INIT(&fields[96]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5475 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5476 | {UPB_TABKEY_NUM(33), UPB_TABVALUE_PTR_INIT(&fields[13]), NULL}, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5477 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5478 | {UPB_TABKEY_NUM(999), UPB_TABVALUE_PTR_INIT(&fields[98]), NULL}, |
| 5479 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5480 | {UPB_TABKEY_NUM(33), UPB_TABVALUE_PTR_INIT(&fields[11]), NULL}, |
| 5481 | {UPB_TABKEY_NONE, UPB_TABVALUE_EMPTY_INIT, NULL}, |
| 5482 | {UPB_TABKEY_NUM(999), UPB_TABVALUE_PTR_INIT(&fields[95]), NULL}, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5483 | }; |
| 5484 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 5485 | static const upb_tabval arrays[184] = { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5486 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5487 | UPB_TABVALUE_PTR_INIT(&fields[52]), |
| 5488 | UPB_TABVALUE_PTR_INIT(&fields[25]), |
| 5489 | UPB_TABVALUE_PTR_INIT(&fields[60]), |
| 5490 | UPB_TABVALUE_PTR_INIT(&fields[20]), |
| 5491 | UPB_TABVALUE_PTR_INIT(&fields[24]), |
| 5492 | UPB_TABVALUE_PTR_INIT(&fields[22]), |
| 5493 | UPB_TABVALUE_PTR_INIT(&fields[70]), |
| 5494 | UPB_TABVALUE_PTR_INIT(&fields[65]), |
| 5495 | UPB_TABVALUE_PTR_INIT(&fields[83]), |
| 5496 | UPB_TABVALUE_PTR_INIT(&fields[82]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5497 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5498 | UPB_TABVALUE_PTR_INIT(&fields[88]), |
| 5499 | UPB_TABVALUE_PTR_INIT(&fields[18]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5500 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5501 | UPB_TABVALUE_PTR_INIT(&fields[89]), |
| 5502 | UPB_TABVALUE_PTR_INIT(&fields[17]), |
| 5503 | UPB_TABVALUE_EMPTY_INIT, |
| 5504 | UPB_TABVALUE_PTR_INIT(&fields[53]), |
| 5505 | UPB_TABVALUE_PTR_INIT(&fields[102]), |
| 5506 | UPB_TABVALUE_PTR_INIT(&fields[69]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5507 | UPB_TABVALUE_EMPTY_INIT, |
| 5508 | UPB_TABVALUE_EMPTY_INIT, |
| 5509 | UPB_TABVALUE_PTR_INIT(&fields[1]), |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5510 | UPB_TABVALUE_PTR_INIT(&fields[10]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5511 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5512 | UPB_TABVALUE_PTR_INIT(&fields[50]), |
| 5513 | UPB_TABVALUE_PTR_INIT(&fields[63]), |
| 5514 | UPB_TABVALUE_PTR_INIT(&fields[71]), |
| 5515 | UPB_TABVALUE_EMPTY_INIT, |
| 5516 | UPB_TABVALUE_PTR_INIT(&fields[9]), |
| 5517 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5518 | UPB_TABVALUE_PTR_INIT(&fields[56]), |
| 5519 | UPB_TABVALUE_PTR_INIT(&fields[21]), |
| 5520 | UPB_TABVALUE_PTR_INIT(&fields[62]), |
| 5521 | UPB_TABVALUE_PTR_INIT(&fields[40]), |
| 5522 | UPB_TABVALUE_PTR_INIT(&fields[93]), |
| 5523 | UPB_TABVALUE_PTR_INIT(&fields[94]), |
| 5524 | UPB_TABVALUE_PTR_INIT(&fields[7]), |
| 5525 | UPB_TABVALUE_PTR_INIT(&fields[74]), |
| 5526 | UPB_TABVALUE_PTR_INIT(&fields[66]), |
| 5527 | UPB_TABVALUE_PTR_INIT(&fields[38]), |
| 5528 | UPB_TABVALUE_EMPTY_INIT, |
| 5529 | UPB_TABVALUE_PTR_INIT(&fields[6]), |
| 5530 | UPB_TABVALUE_PTR_INIT(&fields[77]), |
| 5531 | UPB_TABVALUE_PTR_INIT(&fields[12]), |
| 5532 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5533 | UPB_TABVALUE_PTR_INIT(&fields[41]), |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5534 | UPB_TABVALUE_PTR_INIT(&fields[39]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5535 | UPB_TABVALUE_EMPTY_INIT, |
| 5536 | UPB_TABVALUE_EMPTY_INIT, |
| 5537 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5538 | UPB_TABVALUE_PTR_INIT(&fields[103]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5539 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5540 | UPB_TABVALUE_PTR_INIT(&fields[49]), |
| 5541 | UPB_TABVALUE_PTR_INIT(&fields[76]), |
| 5542 | UPB_TABVALUE_PTR_INIT(&fields[8]), |
| 5543 | UPB_TABVALUE_PTR_INIT(&fields[47]), |
| 5544 | UPB_TABVALUE_PTR_INIT(&fields[19]), |
| 5545 | UPB_TABVALUE_PTR_INIT(&fields[85]), |
| 5546 | UPB_TABVALUE_PTR_INIT(&fields[23]), |
| 5547 | UPB_TABVALUE_PTR_INIT(&fields[72]), |
| 5548 | UPB_TABVALUE_PTR_INIT(&fields[86]), |
| 5549 | UPB_TABVALUE_PTR_INIT(&fields[80]), |
| 5550 | UPB_TABVALUE_PTR_INIT(&fields[104]), |
| 5551 | UPB_TABVALUE_PTR_INIT(&fields[91]), |
| 5552 | UPB_TABVALUE_EMPTY_INIT, |
| 5553 | UPB_TABVALUE_PTR_INIT(&fields[26]), |
| 5554 | UPB_TABVALUE_EMPTY_INIT, |
| 5555 | UPB_TABVALUE_PTR_INIT(&fields[35]), |
| 5556 | UPB_TABVALUE_EMPTY_INIT, |
| 5557 | UPB_TABVALUE_EMPTY_INIT, |
| 5558 | UPB_TABVALUE_EMPTY_INIT, |
| 5559 | UPB_TABVALUE_EMPTY_INIT, |
| 5560 | UPB_TABVALUE_EMPTY_INIT, |
| 5561 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5562 | UPB_TABVALUE_PTR_INIT(&fields[34]), |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5563 | UPB_TABVALUE_PTR_INIT(&fields[67]), |
| 5564 | UPB_TABVALUE_PTR_INIT(&fields[33]), |
| 5565 | UPB_TABVALUE_PTR_INIT(&fields[27]), |
| 5566 | UPB_TABVALUE_EMPTY_INIT, |
| 5567 | UPB_TABVALUE_EMPTY_INIT, |
| 5568 | UPB_TABVALUE_EMPTY_INIT, |
| 5569 | UPB_TABVALUE_EMPTY_INIT, |
| 5570 | UPB_TABVALUE_PTR_INIT(&fields[3]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5571 | UPB_TABVALUE_PTR_INIT(&fields[32]), |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5572 | UPB_TABVALUE_PTR_INIT(&fields[81]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5573 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5574 | UPB_TABVALUE_PTR_INIT(&fields[31]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5575 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5576 | UPB_TABVALUE_EMPTY_INIT, |
| 5577 | UPB_TABVALUE_PTR_INIT(&fields[15]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5578 | UPB_TABVALUE_EMPTY_INIT, |
| 5579 | UPB_TABVALUE_EMPTY_INIT, |
| 5580 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5581 | UPB_TABVALUE_PTR_INIT(&fields[36]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5582 | UPB_TABVALUE_EMPTY_INIT, |
| 5583 | UPB_TABVALUE_EMPTY_INIT, |
| 5584 | UPB_TABVALUE_EMPTY_INIT, |
| 5585 | UPB_TABVALUE_PTR_INIT(&fields[2]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5586 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5587 | UPB_TABVALUE_EMPTY_INIT, |
| 5588 | UPB_TABVALUE_EMPTY_INIT, |
| 5589 | UPB_TABVALUE_EMPTY_INIT, |
| 5590 | UPB_TABVALUE_PTR_INIT(&fields[64]), |
| 5591 | UPB_TABVALUE_PTR_INIT(&fields[5]), |
| 5592 | UPB_TABVALUE_PTR_INIT(&fields[37]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5593 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5594 | UPB_TABVALUE_PTR_INIT(&fields[46]), |
| 5595 | UPB_TABVALUE_PTR_INIT(&fields[61]), |
| 5596 | UPB_TABVALUE_PTR_INIT(&fields[14]), |
| 5597 | UPB_TABVALUE_EMPTY_INIT, |
| 5598 | UPB_TABVALUE_EMPTY_INIT, |
| 5599 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5600 | UPB_TABVALUE_PTR_INIT(&fields[45]), |
| 5601 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5602 | UPB_TABVALUE_PTR_INIT(&fields[51]), |
| 5603 | UPB_TABVALUE_PTR_INIT(&fields[29]), |
| 5604 | UPB_TABVALUE_PTR_INIT(&fields[75]), |
| 5605 | UPB_TABVALUE_PTR_INIT(&fields[68]), |
| 5606 | UPB_TABVALUE_PTR_INIT(&fields[4]), |
| 5607 | UPB_TABVALUE_PTR_INIT(&fields[84]), |
| 5608 | UPB_TABVALUE_EMPTY_INIT, |
| 5609 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5610 | UPB_TABVALUE_PTR_INIT(&fields[54]), |
| 5611 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5612 | UPB_TABVALUE_PTR_INIT(&fields[55]), |
| 5613 | UPB_TABVALUE_PTR_INIT(&fields[48]), |
| 5614 | UPB_TABVALUE_PTR_INIT(&fields[73]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5615 | UPB_TABVALUE_EMPTY_INIT, |
| 5616 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5617 | UPB_TABVALUE_PTR_INIT(&fields[44]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5618 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5619 | UPB_TABVALUE_PTR_INIT(&fields[78]), |
| 5620 | UPB_TABVALUE_PTR_INIT(&fields[87]), |
| 5621 | UPB_TABVALUE_PTR_INIT(&fields[42]), |
| 5622 | UPB_TABVALUE_PTR_INIT(&fields[92]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5623 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5624 | UPB_TABVALUE_PTR_INIT(&fields[43]), |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5625 | UPB_TABVALUE_EMPTY_INIT, |
| 5626 | UPB_TABVALUE_EMPTY_INIT, |
| 5627 | UPB_TABVALUE_PTR_INIT(&fields[57]), |
| 5628 | UPB_TABVALUE_PTR_INIT(&fields[28]), |
| 5629 | UPB_TABVALUE_PTR_INIT(&fields[79]), |
| 5630 | UPB_TABVALUE_PTR_INIT(&fields[59]), |
| 5631 | UPB_TABVALUE_PTR_INIT(&fields[16]), |
| 5632 | UPB_TABVALUE_PTR_INIT(&fields[90]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5633 | UPB_TABVALUE_PTR_INIT(&fields[0]), |
| 5634 | UPB_TABVALUE_EMPTY_INIT, |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5635 | UPB_TABVALUE_PTR_INIT(&fields[58]), |
| 5636 | UPB_TABVALUE_PTR_INIT(&fields[30]), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5637 | UPB_TABVALUE_EMPTY_INIT, |
| 5638 | UPB_TABVALUE_PTR_INIT("LABEL_OPTIONAL"), |
| 5639 | UPB_TABVALUE_PTR_INIT("LABEL_REQUIRED"), |
| 5640 | UPB_TABVALUE_PTR_INIT("LABEL_REPEATED"), |
| 5641 | UPB_TABVALUE_EMPTY_INIT, |
| 5642 | UPB_TABVALUE_PTR_INIT("TYPE_DOUBLE"), |
| 5643 | UPB_TABVALUE_PTR_INIT("TYPE_FLOAT"), |
| 5644 | UPB_TABVALUE_PTR_INIT("TYPE_INT64"), |
| 5645 | UPB_TABVALUE_PTR_INIT("TYPE_UINT64"), |
| 5646 | UPB_TABVALUE_PTR_INIT("TYPE_INT32"), |
| 5647 | UPB_TABVALUE_PTR_INIT("TYPE_FIXED64"), |
| 5648 | UPB_TABVALUE_PTR_INIT("TYPE_FIXED32"), |
| 5649 | UPB_TABVALUE_PTR_INIT("TYPE_BOOL"), |
| 5650 | UPB_TABVALUE_PTR_INIT("TYPE_STRING"), |
| 5651 | UPB_TABVALUE_PTR_INIT("TYPE_GROUP"), |
| 5652 | UPB_TABVALUE_PTR_INIT("TYPE_MESSAGE"), |
| 5653 | UPB_TABVALUE_PTR_INIT("TYPE_BYTES"), |
| 5654 | UPB_TABVALUE_PTR_INIT("TYPE_UINT32"), |
| 5655 | UPB_TABVALUE_PTR_INIT("TYPE_ENUM"), |
| 5656 | UPB_TABVALUE_PTR_INIT("TYPE_SFIXED32"), |
| 5657 | UPB_TABVALUE_PTR_INIT("TYPE_SFIXED64"), |
| 5658 | UPB_TABVALUE_PTR_INIT("TYPE_SINT32"), |
| 5659 | UPB_TABVALUE_PTR_INIT("TYPE_SINT64"), |
| 5660 | UPB_TABVALUE_PTR_INIT("STRING"), |
| 5661 | UPB_TABVALUE_PTR_INIT("CORD"), |
| 5662 | UPB_TABVALUE_PTR_INIT("STRING_PIECE"), |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5663 | UPB_TABVALUE_PTR_INIT("JS_NORMAL"), |
| 5664 | UPB_TABVALUE_PTR_INIT("JS_STRING"), |
| 5665 | UPB_TABVALUE_PTR_INIT("JS_NUMBER"), |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5666 | UPB_TABVALUE_EMPTY_INIT, |
| 5667 | UPB_TABVALUE_PTR_INIT("SPEED"), |
| 5668 | UPB_TABVALUE_PTR_INIT("CODE_SIZE"), |
| 5669 | UPB_TABVALUE_PTR_INIT("LITE_RUNTIME"), |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5670 | }; |
| 5671 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5672 | static const upb_symtab symtab = UPB_SYMTAB_INIT(UPB_STRTABLE_INIT(27, 31, UPB_CTYPE_PTR, 5, &strentries[236]), &reftables[264], &reftables[265]); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5673 | |
| 5674 | const upb_symtab *upbdefs_google_protobuf_descriptor(const void *owner) { |
| 5675 | upb_symtab_ref(&symtab, owner); |
| 5676 | return &symtab; |
| 5677 | } |
| 5678 | |
| 5679 | #ifdef UPB_DEBUG_REFS |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5680 | static upb_inttable reftables[266] = { |
| 5681 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5682 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5683 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5684 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5685 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5686 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5687 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5688 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5689 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5690 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5691 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5692 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5693 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5694 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5695 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5696 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5697 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5698 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5699 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5700 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5701 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5702 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5703 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5704 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5705 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5706 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5707 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5708 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5709 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5710 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5711 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5712 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5713 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5714 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5715 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5716 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5717 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5718 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5719 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5720 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5721 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5722 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5723 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5724 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5725 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5726 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5727 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5728 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5729 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5730 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5731 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5732 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5733 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5734 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5735 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5736 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5737 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5738 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5739 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5740 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5741 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5742 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5743 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5744 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5745 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5746 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5747 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5748 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5749 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5750 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5751 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5752 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5753 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5754 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5755 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5756 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5757 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5758 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5759 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5760 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5761 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5762 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5763 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5764 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5765 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5766 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5767 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5768 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5769 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5770 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5771 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5772 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5773 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5774 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5775 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5776 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5777 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5778 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5779 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5780 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5781 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5782 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5783 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5784 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5785 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5786 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5787 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5788 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5789 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5790 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5791 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5792 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5793 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5794 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5795 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5796 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5797 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5798 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5799 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5800 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5801 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5802 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5803 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5804 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5805 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5806 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5807 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5808 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5809 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5810 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5811 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5812 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5813 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5814 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5815 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5816 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5817 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5818 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5819 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5820 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5821 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5822 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5823 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5824 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5825 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5826 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5827 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5828 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5829 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5830 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5831 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5832 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5833 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5834 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5835 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5836 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5837 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5838 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5839 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5840 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5841 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5842 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5843 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5844 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5845 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5846 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5847 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5848 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5849 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5850 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5851 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5852 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5853 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5854 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5855 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5856 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5857 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5858 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5859 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5860 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5861 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5862 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5863 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5864 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5865 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5866 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5867 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5868 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5869 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5870 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5871 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5872 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5873 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5874 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5875 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5876 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5877 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5878 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5879 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5880 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5881 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5882 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5883 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5884 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5885 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5886 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5887 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5888 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5889 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5890 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5891 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5892 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5893 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5894 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5895 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5896 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5897 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5898 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5899 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5900 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5901 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5902 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5903 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5904 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5905 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5906 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5907 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5908 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5909 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5910 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5911 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5912 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5913 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5914 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5915 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5916 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5917 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5918 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5919 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5920 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5921 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5922 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5923 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5924 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5925 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5926 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5927 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5928 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5929 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5930 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5931 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5932 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5933 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5934 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5935 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5936 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5937 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5938 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5939 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5940 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5941 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5942 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5943 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5944 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5945 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5946 | UPB_EMPTY_INTTABLE_INIT(UPB_CTYPE_PTR), |
| 5947 | }; |
| 5948 | #endif |
| 5949 | |
| 5950 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 5951 | ** XXX: The routines in this file that consume a string do not currently |
| 5952 | ** support having the string span buffers. In the future, as upb_sink and |
| 5953 | ** its buffering/sharing functionality evolve there should be an easy and |
| 5954 | ** idiomatic way of correctly handling this case. For now, we accept this |
| 5955 | ** limitation since we currently only parse descriptors from single strings. |
| 5956 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 5957 | |
| 5958 | |
| 5959 | #include <errno.h> |
| 5960 | #include <stdlib.h> |
| 5961 | #include <string.h> |
| 5962 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 5963 | /* Compares a NULL-terminated string with a non-NULL-terminated string. */ |
| 5964 | static bool upb_streq(const char *str, const char *buf, size_t n) { |
| 5965 | return strlen(str) == n && memcmp(str, buf, n) == 0; |
| 5966 | } |
| 5967 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5968 | /* upb_deflist is an internal-only dynamic array for storing a growing list of |
| 5969 | * upb_defs. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 5970 | typedef struct { |
| 5971 | upb_def **defs; |
| 5972 | size_t len; |
| 5973 | size_t size; |
| 5974 | bool owned; |
| 5975 | } upb_deflist; |
| 5976 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5977 | /* We keep a stack of all the messages scopes we are currently in, as well as |
| 5978 | * the top-level file scope. This is necessary to correctly qualify the |
| 5979 | * definitions that are contained inside. "name" tracks the name of the |
| 5980 | * message or package (a bare name -- not qualified by any enclosing scopes). */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 5981 | typedef struct { |
| 5982 | char *name; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5983 | /* Index of the first def that is under this scope. For msgdefs, the |
| 5984 | * msgdef itself is at start-1. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 5985 | int start; |
| 5986 | } upb_descreader_frame; |
| 5987 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 5988 | /* The maximum number of nested declarations that are allowed, ie. |
| 5989 | * message Foo { |
| 5990 | * message Bar { |
| 5991 | * message Baz { |
| 5992 | * } |
| 5993 | * } |
| 5994 | * } |
| 5995 | * |
| 5996 | * This is a resource limit that affects how big our runtime stack can grow. |
| 5997 | * TODO: make this a runtime-settable property of the Reader instance. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 5998 | #define UPB_MAX_MESSAGE_NESTING 64 |
| 5999 | |
| 6000 | struct upb_descreader { |
| 6001 | upb_sink sink; |
| 6002 | upb_deflist defs; |
| 6003 | upb_descreader_frame stack[UPB_MAX_MESSAGE_NESTING]; |
| 6004 | int stack_len; |
| 6005 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 6006 | bool primitives_have_presence; |
| 6007 | int file_start; |
| 6008 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 6009 | uint32_t number; |
| 6010 | char *name; |
| 6011 | bool saw_number; |
| 6012 | bool saw_name; |
| 6013 | |
| 6014 | char *default_string; |
| 6015 | |
| 6016 | upb_fielddef *f; |
| 6017 | }; |
| 6018 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6019 | static char *upb_strndup(const char *buf, size_t n) { |
| 6020 | char *ret = malloc(n + 1); |
| 6021 | if (!ret) return NULL; |
| 6022 | memcpy(ret, buf, n); |
| 6023 | ret[n] = '\0'; |
| 6024 | return ret; |
| 6025 | } |
| 6026 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6027 | /* Returns a newly allocated string that joins input strings together, for |
| 6028 | * example: |
| 6029 | * join("Foo.Bar", "Baz") -> "Foo.Bar.Baz" |
| 6030 | * join("", "Baz") -> "Baz" |
| 6031 | * Caller owns a ref on the returned string. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6032 | static char *upb_join(const char *base, const char *name) { |
| 6033 | if (!base || strlen(base) == 0) { |
| 6034 | return upb_strdup(name); |
| 6035 | } else { |
| 6036 | char *ret = malloc(strlen(base) + strlen(name) + 2); |
| 6037 | ret[0] = '\0'; |
| 6038 | strcat(ret, base); |
| 6039 | strcat(ret, "."); |
| 6040 | strcat(ret, name); |
| 6041 | return ret; |
| 6042 | } |
| 6043 | } |
| 6044 | |
| 6045 | |
| 6046 | /* upb_deflist ****************************************************************/ |
| 6047 | |
| 6048 | void upb_deflist_init(upb_deflist *l) { |
| 6049 | l->size = 0; |
| 6050 | l->defs = NULL; |
| 6051 | l->len = 0; |
| 6052 | l->owned = true; |
| 6053 | } |
| 6054 | |
| 6055 | void upb_deflist_uninit(upb_deflist *l) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6056 | size_t i; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6057 | if (l->owned) |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6058 | for(i = 0; i < l->len; i++) |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6059 | upb_def_unref(l->defs[i], l); |
| 6060 | free(l->defs); |
| 6061 | } |
| 6062 | |
| 6063 | bool upb_deflist_push(upb_deflist *l, upb_def *d) { |
| 6064 | if(++l->len >= l->size) { |
| 6065 | size_t new_size = UPB_MAX(l->size, 4); |
| 6066 | new_size *= 2; |
| 6067 | l->defs = realloc(l->defs, new_size * sizeof(void *)); |
| 6068 | if (!l->defs) return false; |
| 6069 | l->size = new_size; |
| 6070 | } |
| 6071 | l->defs[l->len - 1] = d; |
| 6072 | return true; |
| 6073 | } |
| 6074 | |
| 6075 | void upb_deflist_donaterefs(upb_deflist *l, void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6076 | size_t i; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6077 | assert(l->owned); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6078 | for (i = 0; i < l->len; i++) |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6079 | upb_def_donateref(l->defs[i], l, owner); |
| 6080 | l->owned = false; |
| 6081 | } |
| 6082 | |
| 6083 | static upb_def *upb_deflist_last(upb_deflist *l) { |
| 6084 | return l->defs[l->len-1]; |
| 6085 | } |
| 6086 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6087 | /* Qualify the defname for all defs starting with offset "start" with "str". */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6088 | static void upb_deflist_qualify(upb_deflist *l, char *str, int32_t start) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6089 | uint32_t i; |
| 6090 | for (i = start; i < l->len; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6091 | upb_def *def = l->defs[i]; |
| 6092 | char *name = upb_join(str, upb_def_fullname(def)); |
| 6093 | upb_def_setfullname(def, name, NULL); |
| 6094 | free(name); |
| 6095 | } |
| 6096 | } |
| 6097 | |
| 6098 | |
| 6099 | /* upb_descreader ************************************************************/ |
| 6100 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6101 | static upb_msgdef *upb_descreader_top(upb_descreader *r) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6102 | int index; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6103 | assert(r->stack_len > 1); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6104 | index = r->stack[r->stack_len-1].start - 1; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6105 | assert(index >= 0); |
| 6106 | return upb_downcast_msgdef_mutable(r->defs.defs[index]); |
| 6107 | } |
| 6108 | |
| 6109 | static upb_def *upb_descreader_last(upb_descreader *r) { |
| 6110 | return upb_deflist_last(&r->defs); |
| 6111 | } |
| 6112 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6113 | /* Start/end handlers for FileDescriptorProto and DescriptorProto (the two |
| 6114 | * entities that have names and can contain sub-definitions. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6115 | void upb_descreader_startcontainer(upb_descreader *r) { |
| 6116 | upb_descreader_frame *f = &r->stack[r->stack_len++]; |
| 6117 | f->start = r->defs.len; |
| 6118 | f->name = NULL; |
| 6119 | } |
| 6120 | |
| 6121 | void upb_descreader_endcontainer(upb_descreader *r) { |
| 6122 | upb_descreader_frame *f = &r->stack[--r->stack_len]; |
| 6123 | upb_deflist_qualify(&r->defs, f->name, f->start); |
| 6124 | free(f->name); |
| 6125 | f->name = NULL; |
| 6126 | } |
| 6127 | |
| 6128 | void upb_descreader_setscopename(upb_descreader *r, char *str) { |
| 6129 | upb_descreader_frame *f = &r->stack[r->stack_len-1]; |
| 6130 | free(f->name); |
| 6131 | f->name = str; |
| 6132 | } |
| 6133 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6134 | /* Handlers for google.protobuf.FileDescriptorProto. */ |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 6135 | static bool file_startmsg(void *closure, const void *hd) { |
| 6136 | upb_descreader *r = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6137 | UPB_UNUSED(hd); |
| 6138 | upb_descreader_startcontainer(r); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 6139 | r->primitives_have_presence = true; |
| 6140 | r->file_start = r->defs.len; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6141 | return true; |
| 6142 | } |
| 6143 | |
| 6144 | static bool file_endmsg(void *closure, const void *hd, upb_status *status) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6145 | upb_descreader *r = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6146 | UPB_UNUSED(hd); |
| 6147 | UPB_UNUSED(status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6148 | upb_descreader_endcontainer(r); |
| 6149 | return true; |
| 6150 | } |
| 6151 | |
| 6152 | static size_t file_onpackage(void *closure, const void *hd, const char *buf, |
| 6153 | size_t n, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6154 | upb_descreader *r = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6155 | UPB_UNUSED(hd); |
| 6156 | UPB_UNUSED(handle); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6157 | /* XXX: see comment at the top of the file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6158 | upb_descreader_setscopename(r, upb_strndup(buf, n)); |
| 6159 | return n; |
| 6160 | } |
| 6161 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 6162 | static size_t file_onsyntax(void *closure, const void *hd, const char *buf, |
| 6163 | size_t n, const upb_bufhandle *handle) { |
| 6164 | upb_descreader *r = closure; |
| 6165 | UPB_UNUSED(hd); |
| 6166 | UPB_UNUSED(handle); |
| 6167 | /* XXX: see comment at the top of the file. */ |
| 6168 | if (upb_streq("proto2", buf, n)) { |
| 6169 | /* Technically we could verify that proto3 hadn't previously been seen. */ |
| 6170 | } else if (upb_streq("proto3", buf, n)) { |
| 6171 | uint32_t i; |
| 6172 | /* Update messages created before the syntax was read. */ |
| 6173 | for (i = r->file_start; i < r->defs.len; i++) { |
| 6174 | upb_msgdef *m = upb_dyncast_msgdef_mutable(r->defs.defs[i]); |
| 6175 | if (m) { |
| 6176 | upb_msgdef_setprimitiveshavepresence(m, false); |
| 6177 | } |
| 6178 | } |
| 6179 | |
| 6180 | /* Set a flag for any future messages that will be created. */ |
| 6181 | r->primitives_have_presence = false; |
| 6182 | } else { |
| 6183 | /* Error: neither proto3 nor proto3. |
| 6184 | * TODO(haberman): there should be a status object we can report this to. */ |
| 6185 | return 0; |
| 6186 | } |
| 6187 | |
| 6188 | return n; |
| 6189 | } |
| 6190 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6191 | /* Handlers for google.protobuf.EnumValueDescriptorProto. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6192 | static bool enumval_startmsg(void *closure, const void *hd) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6193 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6194 | UPB_UNUSED(hd); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6195 | r->saw_number = false; |
| 6196 | r->saw_name = false; |
| 6197 | return true; |
| 6198 | } |
| 6199 | |
| 6200 | static size_t enumval_onname(void *closure, const void *hd, const char *buf, |
| 6201 | size_t n, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6202 | upb_descreader *r = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6203 | UPB_UNUSED(hd); |
| 6204 | UPB_UNUSED(handle); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6205 | /* XXX: see comment at the top of the file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6206 | free(r->name); |
| 6207 | r->name = upb_strndup(buf, n); |
| 6208 | r->saw_name = true; |
| 6209 | return n; |
| 6210 | } |
| 6211 | |
| 6212 | static bool enumval_onnumber(void *closure, const void *hd, int32_t val) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6213 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6214 | UPB_UNUSED(hd); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6215 | r->number = val; |
| 6216 | r->saw_number = true; |
| 6217 | return true; |
| 6218 | } |
| 6219 | |
| 6220 | static bool enumval_endmsg(void *closure, const void *hd, upb_status *status) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6221 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6222 | upb_enumdef *e; |
| 6223 | UPB_UNUSED(hd); |
| 6224 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6225 | if(!r->saw_number || !r->saw_name) { |
| 6226 | upb_status_seterrmsg(status, "Enum value missing name or number."); |
| 6227 | return false; |
| 6228 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6229 | e = upb_downcast_enumdef_mutable(upb_descreader_last(r)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6230 | upb_enumdef_addval(e, r->name, r->number, status); |
| 6231 | free(r->name); |
| 6232 | r->name = NULL; |
| 6233 | return true; |
| 6234 | } |
| 6235 | |
| 6236 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6237 | /* Handlers for google.protobuf.EnumDescriptorProto. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6238 | static bool enum_startmsg(void *closure, const void *hd) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6239 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6240 | UPB_UNUSED(hd); |
| 6241 | upb_deflist_push(&r->defs, |
| 6242 | upb_enumdef_upcast_mutable(upb_enumdef_new(&r->defs))); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6243 | return true; |
| 6244 | } |
| 6245 | |
| 6246 | static bool enum_endmsg(void *closure, const void *hd, upb_status *status) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6247 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6248 | upb_enumdef *e; |
| 6249 | UPB_UNUSED(hd); |
| 6250 | |
| 6251 | e = upb_downcast_enumdef_mutable(upb_descreader_last(r)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6252 | if (upb_def_fullname(upb_descreader_last(r)) == NULL) { |
| 6253 | upb_status_seterrmsg(status, "Enum had no name."); |
| 6254 | return false; |
| 6255 | } |
| 6256 | if (upb_enumdef_numvals(e) == 0) { |
| 6257 | upb_status_seterrmsg(status, "Enum had no values."); |
| 6258 | return false; |
| 6259 | } |
| 6260 | return true; |
| 6261 | } |
| 6262 | |
| 6263 | static size_t enum_onname(void *closure, const void *hd, const char *buf, |
| 6264 | size_t n, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6265 | upb_descreader *r = closure; |
| 6266 | char *fullname = upb_strndup(buf, n); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6267 | UPB_UNUSED(hd); |
| 6268 | UPB_UNUSED(handle); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6269 | /* XXX: see comment at the top of the file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6270 | upb_def_setfullname(upb_descreader_last(r), fullname, NULL); |
| 6271 | free(fullname); |
| 6272 | return n; |
| 6273 | } |
| 6274 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6275 | /* Handlers for google.protobuf.FieldDescriptorProto */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6276 | static bool field_startmsg(void *closure, const void *hd) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6277 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6278 | UPB_UNUSED(hd); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6279 | r->f = upb_fielddef_new(&r->defs); |
| 6280 | free(r->default_string); |
| 6281 | r->default_string = NULL; |
| 6282 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6283 | /* fielddefs default to packed, but descriptors default to non-packed. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6284 | upb_fielddef_setpacked(r->f, false); |
| 6285 | return true; |
| 6286 | } |
| 6287 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6288 | /* Converts the default value in string "str" into "d". Passes a ref on str. |
| 6289 | * Returns true on success. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6290 | static bool parse_default(char *str, upb_fielddef *f) { |
| 6291 | bool success = true; |
| 6292 | char *end; |
| 6293 | switch (upb_fielddef_type(f)) { |
| 6294 | case UPB_TYPE_INT32: { |
| 6295 | long val = strtol(str, &end, 0); |
| 6296 | if (val > INT32_MAX || val < INT32_MIN || errno == ERANGE || *end) |
| 6297 | success = false; |
| 6298 | else |
| 6299 | upb_fielddef_setdefaultint32(f, val); |
| 6300 | break; |
| 6301 | } |
| 6302 | case UPB_TYPE_INT64: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6303 | /* XXX: Need to write our own strtoll, since it's not available in c89. */ |
| 6304 | long long val = strtol(str, &end, 0); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6305 | if (val > INT64_MAX || val < INT64_MIN || errno == ERANGE || *end) |
| 6306 | success = false; |
| 6307 | else |
| 6308 | upb_fielddef_setdefaultint64(f, val); |
| 6309 | break; |
| 6310 | } |
| 6311 | case UPB_TYPE_UINT32: { |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 6312 | unsigned long val = strtoul(str, &end, 0); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6313 | if (val > UINT32_MAX || errno == ERANGE || *end) |
| 6314 | success = false; |
| 6315 | else |
| 6316 | upb_fielddef_setdefaultuint32(f, val); |
| 6317 | break; |
| 6318 | } |
| 6319 | case UPB_TYPE_UINT64: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6320 | /* XXX: Need to write our own strtoull, since it's not available in c89. */ |
| 6321 | unsigned long long val = strtoul(str, &end, 0); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6322 | if (val > UINT64_MAX || errno == ERANGE || *end) |
| 6323 | success = false; |
| 6324 | else |
| 6325 | upb_fielddef_setdefaultuint64(f, val); |
| 6326 | break; |
| 6327 | } |
| 6328 | case UPB_TYPE_DOUBLE: { |
| 6329 | double val = strtod(str, &end); |
| 6330 | if (errno == ERANGE || *end) |
| 6331 | success = false; |
| 6332 | else |
| 6333 | upb_fielddef_setdefaultdouble(f, val); |
| 6334 | break; |
| 6335 | } |
| 6336 | case UPB_TYPE_FLOAT: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6337 | /* XXX: Need to write our own strtof, since it's not available in c89. */ |
| 6338 | float val = strtod(str, &end); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6339 | if (errno == ERANGE || *end) |
| 6340 | success = false; |
| 6341 | else |
| 6342 | upb_fielddef_setdefaultfloat(f, val); |
| 6343 | break; |
| 6344 | } |
| 6345 | case UPB_TYPE_BOOL: { |
| 6346 | if (strcmp(str, "false") == 0) |
| 6347 | upb_fielddef_setdefaultbool(f, false); |
| 6348 | else if (strcmp(str, "true") == 0) |
| 6349 | upb_fielddef_setdefaultbool(f, true); |
| 6350 | else |
| 6351 | success = false; |
| 6352 | break; |
| 6353 | } |
| 6354 | default: abort(); |
| 6355 | } |
| 6356 | return success; |
| 6357 | } |
| 6358 | |
| 6359 | static bool field_endmsg(void *closure, const void *hd, upb_status *status) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6360 | upb_descreader *r = closure; |
| 6361 | upb_fielddef *f = r->f; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6362 | UPB_UNUSED(hd); |
| 6363 | |
| 6364 | /* TODO: verify that all required fields were present. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6365 | assert(upb_fielddef_number(f) != 0); |
| 6366 | assert(upb_fielddef_name(f) != NULL); |
| 6367 | assert((upb_fielddef_subdefname(f) != NULL) == upb_fielddef_hassubdef(f)); |
| 6368 | |
| 6369 | if (r->default_string) { |
| 6370 | if (upb_fielddef_issubmsg(f)) { |
| 6371 | upb_status_seterrmsg(status, "Submessages cannot have defaults."); |
| 6372 | return false; |
| 6373 | } |
| 6374 | if (upb_fielddef_isstring(f) || upb_fielddef_type(f) == UPB_TYPE_ENUM) { |
| 6375 | upb_fielddef_setdefaultcstr(f, r->default_string, NULL); |
| 6376 | } else { |
| 6377 | if (r->default_string && !parse_default(r->default_string, f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6378 | /* We don't worry too much about giving a great error message since the |
| 6379 | * compiler should have ensured this was correct. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6380 | upb_status_seterrmsg(status, "Error converting default value."); |
| 6381 | return false; |
| 6382 | } |
| 6383 | } |
| 6384 | } |
| 6385 | return true; |
| 6386 | } |
| 6387 | |
| 6388 | static bool field_onlazy(void *closure, const void *hd, bool val) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6389 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6390 | UPB_UNUSED(hd); |
| 6391 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6392 | upb_fielddef_setlazy(r->f, val); |
| 6393 | return true; |
| 6394 | } |
| 6395 | |
| 6396 | static bool field_onpacked(void *closure, const void *hd, bool val) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6397 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6398 | UPB_UNUSED(hd); |
| 6399 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6400 | upb_fielddef_setpacked(r->f, val); |
| 6401 | return true; |
| 6402 | } |
| 6403 | |
| 6404 | static bool field_ontype(void *closure, const void *hd, int32_t val) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6405 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6406 | UPB_UNUSED(hd); |
| 6407 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6408 | upb_fielddef_setdescriptortype(r->f, val); |
| 6409 | return true; |
| 6410 | } |
| 6411 | |
| 6412 | static bool field_onlabel(void *closure, const void *hd, int32_t val) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6413 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6414 | UPB_UNUSED(hd); |
| 6415 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6416 | upb_fielddef_setlabel(r->f, val); |
| 6417 | return true; |
| 6418 | } |
| 6419 | |
| 6420 | static bool field_onnumber(void *closure, const void *hd, int32_t val) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6421 | upb_descreader *r = closure; |
| 6422 | bool ok = upb_fielddef_setnumber(r->f, val, NULL); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6423 | UPB_UNUSED(hd); |
| 6424 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6425 | UPB_ASSERT_VAR(ok, ok); |
| 6426 | return true; |
| 6427 | } |
| 6428 | |
| 6429 | static size_t field_onname(void *closure, const void *hd, const char *buf, |
| 6430 | size_t n, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6431 | upb_descreader *r = closure; |
| 6432 | char *name = upb_strndup(buf, n); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6433 | UPB_UNUSED(hd); |
| 6434 | UPB_UNUSED(handle); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6435 | |
| 6436 | /* XXX: see comment at the top of the file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6437 | upb_fielddef_setname(r->f, name, NULL); |
| 6438 | free(name); |
| 6439 | return n; |
| 6440 | } |
| 6441 | |
| 6442 | static size_t field_ontypename(void *closure, const void *hd, const char *buf, |
| 6443 | size_t n, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6444 | upb_descreader *r = closure; |
| 6445 | char *name = upb_strndup(buf, n); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6446 | UPB_UNUSED(hd); |
| 6447 | UPB_UNUSED(handle); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6448 | |
| 6449 | /* XXX: see comment at the top of the file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6450 | upb_fielddef_setsubdefname(r->f, name, NULL); |
| 6451 | free(name); |
| 6452 | return n; |
| 6453 | } |
| 6454 | |
| 6455 | static size_t field_onextendee(void *closure, const void *hd, const char *buf, |
| 6456 | size_t n, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6457 | upb_descreader *r = closure; |
| 6458 | char *name = upb_strndup(buf, n); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6459 | UPB_UNUSED(hd); |
| 6460 | UPB_UNUSED(handle); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6461 | |
| 6462 | /* XXX: see comment at the top of the file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6463 | upb_fielddef_setcontainingtypename(r->f, name, NULL); |
| 6464 | free(name); |
| 6465 | return n; |
| 6466 | } |
| 6467 | |
| 6468 | static size_t field_ondefaultval(void *closure, const void *hd, const char *buf, |
| 6469 | size_t n, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6470 | upb_descreader *r = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6471 | UPB_UNUSED(hd); |
| 6472 | UPB_UNUSED(handle); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6473 | |
| 6474 | /* Have to convert from string to the correct type, but we might not know the |
| 6475 | * type yet, so we save it as a string until the end of the field. |
| 6476 | * XXX: see comment at the top of the file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6477 | free(r->default_string); |
| 6478 | r->default_string = upb_strndup(buf, n); |
| 6479 | return n; |
| 6480 | } |
| 6481 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6482 | /* Handlers for google.protobuf.DescriptorProto (representing a message). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6483 | static bool msg_startmsg(void *closure, const void *hd) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6484 | upb_descreader *r = closure; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 6485 | upb_msgdef *m; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6486 | UPB_UNUSED(hd); |
| 6487 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 6488 | m = upb_msgdef_new(&r->defs); |
| 6489 | upb_msgdef_setprimitiveshavepresence(m, r->primitives_have_presence); |
| 6490 | upb_deflist_push(&r->defs, upb_msgdef_upcast_mutable(m)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6491 | upb_descreader_startcontainer(r); |
| 6492 | return true; |
| 6493 | } |
| 6494 | |
| 6495 | static bool msg_endmsg(void *closure, const void *hd, upb_status *status) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6496 | upb_descreader *r = closure; |
| 6497 | upb_msgdef *m = upb_descreader_top(r); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6498 | UPB_UNUSED(hd); |
| 6499 | |
| 6500 | if(!upb_def_fullname(upb_msgdef_upcast_mutable(m))) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6501 | upb_status_seterrmsg(status, "Encountered message with no name."); |
| 6502 | return false; |
| 6503 | } |
| 6504 | upb_descreader_endcontainer(r); |
| 6505 | return true; |
| 6506 | } |
| 6507 | |
| 6508 | static size_t msg_onname(void *closure, const void *hd, const char *buf, |
| 6509 | size_t n, const upb_bufhandle *handle) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6510 | upb_descreader *r = closure; |
| 6511 | upb_msgdef *m = upb_descreader_top(r); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6512 | /* XXX: see comment at the top of the file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6513 | char *name = upb_strndup(buf, n); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6514 | UPB_UNUSED(hd); |
| 6515 | UPB_UNUSED(handle); |
| 6516 | |
| 6517 | upb_def_setfullname(upb_msgdef_upcast_mutable(m), name, NULL); |
| 6518 | upb_descreader_setscopename(r, name); /* Passes ownership of name. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6519 | return n; |
| 6520 | } |
| 6521 | |
| 6522 | static bool msg_onendfield(void *closure, const void *hd) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6523 | upb_descreader *r = closure; |
| 6524 | upb_msgdef *m = upb_descreader_top(r); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6525 | UPB_UNUSED(hd); |
| 6526 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6527 | upb_msgdef_addfield(m, r->f, &r->defs, NULL); |
| 6528 | r->f = NULL; |
| 6529 | return true; |
| 6530 | } |
| 6531 | |
| 6532 | static bool pushextension(void *closure, const void *hd) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6533 | upb_descreader *r = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6534 | UPB_UNUSED(hd); |
| 6535 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6536 | assert(upb_fielddef_containingtypename(r->f)); |
| 6537 | upb_fielddef_setisextension(r->f, true); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6538 | upb_deflist_push(&r->defs, upb_fielddef_upcast_mutable(r->f)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6539 | r->f = NULL; |
| 6540 | return true; |
| 6541 | } |
| 6542 | |
| 6543 | #define D(name) upbdefs_google_protobuf_ ## name(s) |
| 6544 | |
| 6545 | static void reghandlers(const void *closure, upb_handlers *h) { |
| 6546 | const upb_symtab *s = closure; |
| 6547 | const upb_msgdef *m = upb_handlers_msgdef(h); |
| 6548 | |
| 6549 | if (m == D(DescriptorProto)) { |
| 6550 | upb_handlers_setstartmsg(h, &msg_startmsg, NULL); |
| 6551 | upb_handlers_setendmsg(h, &msg_endmsg, NULL); |
| 6552 | upb_handlers_setstring(h, D(DescriptorProto_name), &msg_onname, NULL); |
| 6553 | upb_handlers_setendsubmsg(h, D(DescriptorProto_field), &msg_onendfield, |
| 6554 | NULL); |
| 6555 | upb_handlers_setendsubmsg(h, D(DescriptorProto_extension), &pushextension, |
| 6556 | NULL); |
| 6557 | } else if (m == D(FileDescriptorProto)) { |
| 6558 | upb_handlers_setstartmsg(h, &file_startmsg, NULL); |
| 6559 | upb_handlers_setendmsg(h, &file_endmsg, NULL); |
| 6560 | upb_handlers_setstring(h, D(FileDescriptorProto_package), &file_onpackage, |
| 6561 | NULL); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 6562 | upb_handlers_setstring(h, D(FileDescriptorProto_syntax), &file_onsyntax, |
| 6563 | NULL); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6564 | upb_handlers_setendsubmsg(h, D(FileDescriptorProto_extension), &pushextension, |
| 6565 | NULL); |
| 6566 | } else if (m == D(EnumValueDescriptorProto)) { |
| 6567 | upb_handlers_setstartmsg(h, &enumval_startmsg, NULL); |
| 6568 | upb_handlers_setendmsg(h, &enumval_endmsg, NULL); |
| 6569 | upb_handlers_setstring(h, D(EnumValueDescriptorProto_name), &enumval_onname, NULL); |
| 6570 | upb_handlers_setint32(h, D(EnumValueDescriptorProto_number), &enumval_onnumber, |
| 6571 | NULL); |
| 6572 | } else if (m == D(EnumDescriptorProto)) { |
| 6573 | upb_handlers_setstartmsg(h, &enum_startmsg, NULL); |
| 6574 | upb_handlers_setendmsg(h, &enum_endmsg, NULL); |
| 6575 | upb_handlers_setstring(h, D(EnumDescriptorProto_name), &enum_onname, NULL); |
| 6576 | } else if (m == D(FieldDescriptorProto)) { |
| 6577 | upb_handlers_setstartmsg(h, &field_startmsg, NULL); |
| 6578 | upb_handlers_setendmsg(h, &field_endmsg, NULL); |
| 6579 | upb_handlers_setint32(h, D(FieldDescriptorProto_type), &field_ontype, |
| 6580 | NULL); |
| 6581 | upb_handlers_setint32(h, D(FieldDescriptorProto_label), &field_onlabel, |
| 6582 | NULL); |
| 6583 | upb_handlers_setint32(h, D(FieldDescriptorProto_number), &field_onnumber, |
| 6584 | NULL); |
| 6585 | upb_handlers_setstring(h, D(FieldDescriptorProto_name), &field_onname, |
| 6586 | NULL); |
| 6587 | upb_handlers_setstring(h, D(FieldDescriptorProto_type_name), |
| 6588 | &field_ontypename, NULL); |
| 6589 | upb_handlers_setstring(h, D(FieldDescriptorProto_extendee), |
| 6590 | &field_onextendee, NULL); |
| 6591 | upb_handlers_setstring(h, D(FieldDescriptorProto_default_value), |
| 6592 | &field_ondefaultval, NULL); |
| 6593 | } else if (m == D(FieldOptions)) { |
| 6594 | upb_handlers_setbool(h, D(FieldOptions_lazy), &field_onlazy, NULL); |
| 6595 | upb_handlers_setbool(h, D(FieldOptions_packed), &field_onpacked, NULL); |
| 6596 | } |
| 6597 | } |
| 6598 | |
| 6599 | #undef D |
| 6600 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 6601 | void descreader_cleanup(void *_r) { |
| 6602 | upb_descreader *r = _r; |
| 6603 | free(r->name); |
| 6604 | upb_deflist_uninit(&r->defs); |
| 6605 | free(r->default_string); |
| 6606 | while (r->stack_len > 0) { |
| 6607 | upb_descreader_frame *f = &r->stack[--r->stack_len]; |
| 6608 | free(f->name); |
| 6609 | } |
| 6610 | } |
| 6611 | |
| 6612 | |
| 6613 | /* Public API ****************************************************************/ |
| 6614 | |
| 6615 | upb_descreader *upb_descreader_create(upb_env *e, const upb_handlers *h) { |
| 6616 | upb_descreader *r = upb_env_malloc(e, sizeof(upb_descreader)); |
| 6617 | if (!r || !upb_env_addcleanup(e, descreader_cleanup, r)) { |
| 6618 | return NULL; |
| 6619 | } |
| 6620 | |
| 6621 | upb_deflist_init(&r->defs); |
| 6622 | upb_sink_reset(upb_descreader_input(r), h, r); |
| 6623 | r->stack_len = 0; |
| 6624 | r->name = NULL; |
| 6625 | r->default_string = NULL; |
| 6626 | |
| 6627 | return r; |
| 6628 | } |
| 6629 | |
| 6630 | upb_def **upb_descreader_getdefs(upb_descreader *r, void *owner, int *n) { |
| 6631 | *n = r->defs.len; |
| 6632 | upb_deflist_donaterefs(&r->defs, owner); |
| 6633 | return r->defs.defs; |
| 6634 | } |
| 6635 | |
| 6636 | upb_sink *upb_descreader_input(upb_descreader *r) { |
| 6637 | return &r->sink; |
| 6638 | } |
| 6639 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6640 | const upb_handlers *upb_descreader_newhandlers(const void *owner) { |
| 6641 | const upb_symtab *s = upbdefs_google_protobuf_descriptor(&s); |
| 6642 | const upb_handlers *h = upb_handlers_newfrozen( |
| 6643 | upbdefs_google_protobuf_FileDescriptorSet(s), owner, reghandlers, s); |
| 6644 | upb_symtab_unref(s, &s); |
| 6645 | return h; |
| 6646 | } |
| 6647 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 6648 | ** protobuf decoder bytecode compiler |
| 6649 | ** |
| 6650 | ** Code to compile a upb::Handlers into bytecode for decoding a protobuf |
| 6651 | ** according to that specific schema and destination handlers. |
| 6652 | ** |
| 6653 | ** Compiling to bytecode is always the first step. If we are using the |
| 6654 | ** interpreted decoder we leave it as bytecode and interpret that. If we are |
| 6655 | ** using a JIT decoder we use a code generator to turn the bytecode into native |
| 6656 | ** code, LLVM IR, etc. |
| 6657 | ** |
| 6658 | ** Bytecode definition is in decoder.int.h. |
| 6659 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6660 | |
| 6661 | #include <stdarg.h> |
| 6662 | |
| 6663 | #ifdef UPB_DUMP_BYTECODE |
| 6664 | #include <stdio.h> |
| 6665 | #endif |
| 6666 | |
| 6667 | #define MAXLABEL 5 |
| 6668 | #define EMPTYLABEL -1 |
| 6669 | |
| 6670 | /* mgroup *********************************************************************/ |
| 6671 | |
| 6672 | static void freegroup(upb_refcounted *r) { |
| 6673 | mgroup *g = (mgroup*)r; |
| 6674 | upb_inttable_uninit(&g->methods); |
| 6675 | #ifdef UPB_USE_JIT_X64 |
| 6676 | upb_pbdecoder_freejit(g); |
| 6677 | #endif |
| 6678 | free(g->bytecode); |
| 6679 | free(g); |
| 6680 | } |
| 6681 | |
| 6682 | static void visitgroup(const upb_refcounted *r, upb_refcounted_visit *visit, |
| 6683 | void *closure) { |
| 6684 | const mgroup *g = (const mgroup*)r; |
| 6685 | upb_inttable_iter i; |
| 6686 | upb_inttable_begin(&i, &g->methods); |
| 6687 | for(; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
| 6688 | upb_pbdecodermethod *method = upb_value_getptr(upb_inttable_iter_value(&i)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6689 | visit(r, upb_pbdecodermethod_upcast(method), closure); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6690 | } |
| 6691 | } |
| 6692 | |
| 6693 | mgroup *newgroup(const void *owner) { |
| 6694 | mgroup *g = malloc(sizeof(*g)); |
| 6695 | static const struct upb_refcounted_vtbl vtbl = {visitgroup, freegroup}; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6696 | upb_refcounted_init(mgroup_upcast_mutable(g), &vtbl, owner); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6697 | upb_inttable_init(&g->methods, UPB_CTYPE_PTR); |
| 6698 | g->bytecode = NULL; |
| 6699 | g->bytecode_end = NULL; |
| 6700 | return g; |
| 6701 | } |
| 6702 | |
| 6703 | |
| 6704 | /* upb_pbdecodermethod ********************************************************/ |
| 6705 | |
| 6706 | static void freemethod(upb_refcounted *r) { |
| 6707 | upb_pbdecodermethod *method = (upb_pbdecodermethod*)r; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6708 | |
| 6709 | if (method->dest_handlers_) { |
| 6710 | upb_handlers_unref(method->dest_handlers_, method); |
| 6711 | } |
| 6712 | |
| 6713 | upb_inttable_uninit(&method->dispatch); |
| 6714 | free(method); |
| 6715 | } |
| 6716 | |
| 6717 | static void visitmethod(const upb_refcounted *r, upb_refcounted_visit *visit, |
| 6718 | void *closure) { |
| 6719 | const upb_pbdecodermethod *m = (const upb_pbdecodermethod*)r; |
| 6720 | visit(r, m->group, closure); |
| 6721 | } |
| 6722 | |
| 6723 | static upb_pbdecodermethod *newmethod(const upb_handlers *dest_handlers, |
| 6724 | mgroup *group) { |
| 6725 | static const struct upb_refcounted_vtbl vtbl = {visitmethod, freemethod}; |
| 6726 | upb_pbdecodermethod *ret = malloc(sizeof(*ret)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6727 | upb_refcounted_init(upb_pbdecodermethod_upcast_mutable(ret), &vtbl, &ret); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6728 | upb_byteshandler_init(&ret->input_handler_); |
| 6729 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6730 | /* The method references the group and vice-versa, in a circular reference. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6731 | upb_ref2(ret, group); |
| 6732 | upb_ref2(group, ret); |
| 6733 | upb_inttable_insertptr(&group->methods, dest_handlers, upb_value_ptr(ret)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6734 | upb_pbdecodermethod_unref(ret, &ret); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6735 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6736 | ret->group = mgroup_upcast_mutable(group); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6737 | ret->dest_handlers_ = dest_handlers; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6738 | ret->is_native_ = false; /* If we JIT, it will update this later. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6739 | upb_inttable_init(&ret->dispatch, UPB_CTYPE_UINT64); |
| 6740 | |
| 6741 | if (ret->dest_handlers_) { |
| 6742 | upb_handlers_ref(ret->dest_handlers_, ret); |
| 6743 | } |
| 6744 | return ret; |
| 6745 | } |
| 6746 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6747 | const upb_handlers *upb_pbdecodermethod_desthandlers( |
| 6748 | const upb_pbdecodermethod *m) { |
| 6749 | return m->dest_handlers_; |
| 6750 | } |
| 6751 | |
| 6752 | const upb_byteshandler *upb_pbdecodermethod_inputhandler( |
| 6753 | const upb_pbdecodermethod *m) { |
| 6754 | return &m->input_handler_; |
| 6755 | } |
| 6756 | |
| 6757 | bool upb_pbdecodermethod_isnative(const upb_pbdecodermethod *m) { |
| 6758 | return m->is_native_; |
| 6759 | } |
| 6760 | |
| 6761 | const upb_pbdecodermethod *upb_pbdecodermethod_new( |
| 6762 | const upb_pbdecodermethodopts *opts, const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6763 | const upb_pbdecodermethod *ret; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6764 | upb_pbcodecache cache; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6765 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6766 | upb_pbcodecache_init(&cache); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6767 | ret = upb_pbcodecache_getdecodermethod(&cache, opts); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6768 | upb_pbdecodermethod_ref(ret, owner); |
| 6769 | upb_pbcodecache_uninit(&cache); |
| 6770 | return ret; |
| 6771 | } |
| 6772 | |
| 6773 | |
| 6774 | /* bytecode compiler **********************************************************/ |
| 6775 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6776 | /* Data used only at compilation time. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6777 | typedef struct { |
| 6778 | mgroup *group; |
| 6779 | |
| 6780 | uint32_t *pc; |
| 6781 | int fwd_labels[MAXLABEL]; |
| 6782 | int back_labels[MAXLABEL]; |
| 6783 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6784 | /* For fields marked "lazy", parse them lazily or eagerly? */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6785 | bool lazy; |
| 6786 | } compiler; |
| 6787 | |
| 6788 | static compiler *newcompiler(mgroup *group, bool lazy) { |
| 6789 | compiler *ret = malloc(sizeof(*ret)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6790 | int i; |
| 6791 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6792 | ret->group = group; |
| 6793 | ret->lazy = lazy; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6794 | for (i = 0; i < MAXLABEL; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6795 | ret->fwd_labels[i] = EMPTYLABEL; |
| 6796 | ret->back_labels[i] = EMPTYLABEL; |
| 6797 | } |
| 6798 | return ret; |
| 6799 | } |
| 6800 | |
| 6801 | static void freecompiler(compiler *c) { |
| 6802 | free(c); |
| 6803 | } |
| 6804 | |
| 6805 | const size_t ptr_words = sizeof(void*) / sizeof(uint32_t); |
| 6806 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6807 | /* How many words an instruction is. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6808 | static int instruction_len(uint32_t instr) { |
| 6809 | switch (getop(instr)) { |
| 6810 | case OP_SETDISPATCH: return 1 + ptr_words; |
| 6811 | case OP_TAGN: return 3; |
| 6812 | case OP_SETBIGGROUPNUM: return 2; |
| 6813 | default: return 1; |
| 6814 | } |
| 6815 | } |
| 6816 | |
| 6817 | bool op_has_longofs(int32_t instruction) { |
| 6818 | switch (getop(instruction)) { |
| 6819 | case OP_CALL: |
| 6820 | case OP_BRANCH: |
| 6821 | case OP_CHECKDELIM: |
| 6822 | return true; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6823 | /* The "tag" instructions only have 8 bytes available for the jump target, |
| 6824 | * but that is ok because these opcodes only require short jumps. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6825 | case OP_TAG1: |
| 6826 | case OP_TAG2: |
| 6827 | case OP_TAGN: |
| 6828 | return false; |
| 6829 | default: |
| 6830 | assert(false); |
| 6831 | return false; |
| 6832 | } |
| 6833 | } |
| 6834 | |
| 6835 | static int32_t getofs(uint32_t instruction) { |
| 6836 | if (op_has_longofs(instruction)) { |
| 6837 | return (int32_t)instruction >> 8; |
| 6838 | } else { |
| 6839 | return (int8_t)(instruction >> 8); |
| 6840 | } |
| 6841 | } |
| 6842 | |
| 6843 | static void setofs(uint32_t *instruction, int32_t ofs) { |
| 6844 | if (op_has_longofs(*instruction)) { |
| 6845 | *instruction = getop(*instruction) | ofs << 8; |
| 6846 | } else { |
| 6847 | *instruction = (*instruction & ~0xff00) | ((ofs & 0xff) << 8); |
| 6848 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6849 | assert(getofs(*instruction) == ofs); /* Would fail in cases of overflow. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6850 | } |
| 6851 | |
| 6852 | static uint32_t pcofs(compiler *c) { return c->pc - c->group->bytecode; } |
| 6853 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6854 | /* Defines a local label at the current PC location. All previous forward |
| 6855 | * references are updated to point to this location. The location is noted |
| 6856 | * for any future backward references. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6857 | static void label(compiler *c, unsigned int label) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6858 | int val; |
| 6859 | uint32_t *codep; |
| 6860 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6861 | assert(label < MAXLABEL); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6862 | val = c->fwd_labels[label]; |
| 6863 | codep = (val == EMPTYLABEL) ? NULL : c->group->bytecode + val; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6864 | while (codep) { |
| 6865 | int ofs = getofs(*codep); |
| 6866 | setofs(codep, c->pc - codep - instruction_len(*codep)); |
| 6867 | codep = ofs ? codep + ofs : NULL; |
| 6868 | } |
| 6869 | c->fwd_labels[label] = EMPTYLABEL; |
| 6870 | c->back_labels[label] = pcofs(c); |
| 6871 | } |
| 6872 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6873 | /* Creates a reference to a numbered label; either a forward reference |
| 6874 | * (positive arg) or backward reference (negative arg). For forward references |
| 6875 | * the value returned now is actually a "next" pointer into a linked list of all |
| 6876 | * instructions that use this label and will be patched later when the label is |
| 6877 | * defined with label(). |
| 6878 | * |
| 6879 | * The returned value is the offset that should be written into the instruction. |
| 6880 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6881 | static int32_t labelref(compiler *c, int label) { |
| 6882 | assert(label < MAXLABEL); |
| 6883 | if (label == LABEL_DISPATCH) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6884 | /* No resolving required. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6885 | return 0; |
| 6886 | } else if (label < 0) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6887 | /* Backward local label. Relative to the next instruction. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6888 | uint32_t from = (c->pc + 1) - c->group->bytecode; |
| 6889 | return c->back_labels[-label] - from; |
| 6890 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6891 | /* Forward local label: prepend to (possibly-empty) linked list. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6892 | int *lptr = &c->fwd_labels[label]; |
| 6893 | int32_t ret = (*lptr == EMPTYLABEL) ? 0 : *lptr - pcofs(c); |
| 6894 | *lptr = pcofs(c); |
| 6895 | return ret; |
| 6896 | } |
| 6897 | } |
| 6898 | |
| 6899 | static void put32(compiler *c, uint32_t v) { |
| 6900 | mgroup *g = c->group; |
| 6901 | if (c->pc == g->bytecode_end) { |
| 6902 | int ofs = pcofs(c); |
| 6903 | size_t oldsize = g->bytecode_end - g->bytecode; |
| 6904 | size_t newsize = UPB_MAX(oldsize * 2, 64); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 6905 | /* TODO(haberman): handle OOM. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6906 | g->bytecode = realloc(g->bytecode, newsize * sizeof(uint32_t)); |
| 6907 | g->bytecode_end = g->bytecode + newsize; |
| 6908 | c->pc = g->bytecode + ofs; |
| 6909 | } |
| 6910 | *c->pc++ = v; |
| 6911 | } |
| 6912 | |
| 6913 | static void putop(compiler *c, opcode op, ...) { |
| 6914 | va_list ap; |
| 6915 | va_start(ap, op); |
| 6916 | |
| 6917 | switch (op) { |
| 6918 | case OP_SETDISPATCH: { |
| 6919 | uintptr_t ptr = (uintptr_t)va_arg(ap, void*); |
| 6920 | put32(c, OP_SETDISPATCH); |
| 6921 | put32(c, ptr); |
| 6922 | if (sizeof(uintptr_t) > sizeof(uint32_t)) |
| 6923 | put32(c, (uint64_t)ptr >> 32); |
| 6924 | break; |
| 6925 | } |
| 6926 | case OP_STARTMSG: |
| 6927 | case OP_ENDMSG: |
| 6928 | case OP_PUSHLENDELIM: |
| 6929 | case OP_POP: |
| 6930 | case OP_SETDELIM: |
| 6931 | case OP_HALT: |
| 6932 | case OP_RET: |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 6933 | case OP_DISPATCH: |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 6934 | put32(c, op); |
| 6935 | break; |
| 6936 | case OP_PARSE_DOUBLE: |
| 6937 | case OP_PARSE_FLOAT: |
| 6938 | case OP_PARSE_INT64: |
| 6939 | case OP_PARSE_UINT64: |
| 6940 | case OP_PARSE_INT32: |
| 6941 | case OP_PARSE_FIXED64: |
| 6942 | case OP_PARSE_FIXED32: |
| 6943 | case OP_PARSE_BOOL: |
| 6944 | case OP_PARSE_UINT32: |
| 6945 | case OP_PARSE_SFIXED32: |
| 6946 | case OP_PARSE_SFIXED64: |
| 6947 | case OP_PARSE_SINT32: |
| 6948 | case OP_PARSE_SINT64: |
| 6949 | case OP_STARTSEQ: |
| 6950 | case OP_ENDSEQ: |
| 6951 | case OP_STARTSUBMSG: |
| 6952 | case OP_ENDSUBMSG: |
| 6953 | case OP_STARTSTR: |
| 6954 | case OP_STRING: |
| 6955 | case OP_ENDSTR: |
| 6956 | case OP_PUSHTAGDELIM: |
| 6957 | put32(c, op | va_arg(ap, upb_selector_t) << 8); |
| 6958 | break; |
| 6959 | case OP_SETBIGGROUPNUM: |
| 6960 | put32(c, op); |
| 6961 | put32(c, va_arg(ap, int)); |
| 6962 | break; |
| 6963 | case OP_CALL: { |
| 6964 | const upb_pbdecodermethod *method = va_arg(ap, upb_pbdecodermethod *); |
| 6965 | put32(c, op | (method->code_base.ofs - (pcofs(c) + 1)) << 8); |
| 6966 | break; |
| 6967 | } |
| 6968 | case OP_CHECKDELIM: |
| 6969 | case OP_BRANCH: { |
| 6970 | uint32_t instruction = op; |
| 6971 | int label = va_arg(ap, int); |
| 6972 | setofs(&instruction, labelref(c, label)); |
| 6973 | put32(c, instruction); |
| 6974 | break; |
| 6975 | } |
| 6976 | case OP_TAG1: |
| 6977 | case OP_TAG2: { |
| 6978 | int label = va_arg(ap, int); |
| 6979 | uint64_t tag = va_arg(ap, uint64_t); |
| 6980 | uint32_t instruction = op | (tag << 16); |
| 6981 | assert(tag <= 0xffff); |
| 6982 | setofs(&instruction, labelref(c, label)); |
| 6983 | put32(c, instruction); |
| 6984 | break; |
| 6985 | } |
| 6986 | case OP_TAGN: { |
| 6987 | int label = va_arg(ap, int); |
| 6988 | uint64_t tag = va_arg(ap, uint64_t); |
| 6989 | uint32_t instruction = op | (upb_value_size(tag) << 16); |
| 6990 | setofs(&instruction, labelref(c, label)); |
| 6991 | put32(c, instruction); |
| 6992 | put32(c, tag); |
| 6993 | put32(c, tag >> 32); |
| 6994 | break; |
| 6995 | } |
| 6996 | } |
| 6997 | |
| 6998 | va_end(ap); |
| 6999 | } |
| 7000 | |
| 7001 | #if defined(UPB_USE_JIT_X64) || defined(UPB_DUMP_BYTECODE) |
| 7002 | |
| 7003 | const char *upb_pbdecoder_getopname(unsigned int op) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7004 | #define QUOTE(x) #x |
| 7005 | #define EXPAND_AND_QUOTE(x) QUOTE(x) |
| 7006 | #define OPNAME(x) OP_##x |
| 7007 | #define OP(x) case OPNAME(x): return EXPAND_AND_QUOTE(OPNAME(x)); |
| 7008 | #define T(x) OP(PARSE_##x) |
| 7009 | /* Keep in sync with list in decoder.int.h. */ |
| 7010 | switch ((opcode)op) { |
| 7011 | T(DOUBLE) T(FLOAT) T(INT64) T(UINT64) T(INT32) T(FIXED64) T(FIXED32) |
| 7012 | T(BOOL) T(UINT32) T(SFIXED32) T(SFIXED64) T(SINT32) T(SINT64) |
| 7013 | OP(STARTMSG) OP(ENDMSG) OP(STARTSEQ) OP(ENDSEQ) OP(STARTSUBMSG) |
| 7014 | OP(ENDSUBMSG) OP(STARTSTR) OP(STRING) OP(ENDSTR) OP(CALL) OP(RET) |
| 7015 | OP(PUSHLENDELIM) OP(PUSHTAGDELIM) OP(SETDELIM) OP(CHECKDELIM) |
| 7016 | OP(BRANCH) OP(TAG1) OP(TAG2) OP(TAGN) OP(SETDISPATCH) OP(POP) |
| 7017 | OP(SETBIGGROUPNUM) OP(DISPATCH) OP(HALT) |
| 7018 | } |
| 7019 | return "<unknown op>"; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7020 | #undef OP |
| 7021 | #undef T |
| 7022 | } |
| 7023 | |
| 7024 | #endif |
| 7025 | |
| 7026 | #ifdef UPB_DUMP_BYTECODE |
| 7027 | |
| 7028 | static void dumpbc(uint32_t *p, uint32_t *end, FILE *f) { |
| 7029 | |
| 7030 | uint32_t *begin = p; |
| 7031 | |
| 7032 | while (p < end) { |
| 7033 | fprintf(f, "%p %8tx", p, p - begin); |
| 7034 | uint32_t instr = *p++; |
| 7035 | uint8_t op = getop(instr); |
| 7036 | fprintf(f, " %s", upb_pbdecoder_getopname(op)); |
| 7037 | switch ((opcode)op) { |
| 7038 | case OP_SETDISPATCH: { |
| 7039 | const upb_inttable *dispatch; |
| 7040 | memcpy(&dispatch, p, sizeof(void*)); |
| 7041 | p += ptr_words; |
| 7042 | const upb_pbdecodermethod *method = |
| 7043 | (void *)((char *)dispatch - |
| 7044 | offsetof(upb_pbdecodermethod, dispatch)); |
| 7045 | fprintf(f, " %s", upb_msgdef_fullname( |
| 7046 | upb_handlers_msgdef(method->dest_handlers_))); |
| 7047 | break; |
| 7048 | } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 7049 | case OP_DISPATCH: |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7050 | case OP_STARTMSG: |
| 7051 | case OP_ENDMSG: |
| 7052 | case OP_PUSHLENDELIM: |
| 7053 | case OP_POP: |
| 7054 | case OP_SETDELIM: |
| 7055 | case OP_HALT: |
| 7056 | case OP_RET: |
| 7057 | break; |
| 7058 | case OP_PARSE_DOUBLE: |
| 7059 | case OP_PARSE_FLOAT: |
| 7060 | case OP_PARSE_INT64: |
| 7061 | case OP_PARSE_UINT64: |
| 7062 | case OP_PARSE_INT32: |
| 7063 | case OP_PARSE_FIXED64: |
| 7064 | case OP_PARSE_FIXED32: |
| 7065 | case OP_PARSE_BOOL: |
| 7066 | case OP_PARSE_UINT32: |
| 7067 | case OP_PARSE_SFIXED32: |
| 7068 | case OP_PARSE_SFIXED64: |
| 7069 | case OP_PARSE_SINT32: |
| 7070 | case OP_PARSE_SINT64: |
| 7071 | case OP_STARTSEQ: |
| 7072 | case OP_ENDSEQ: |
| 7073 | case OP_STARTSUBMSG: |
| 7074 | case OP_ENDSUBMSG: |
| 7075 | case OP_STARTSTR: |
| 7076 | case OP_STRING: |
| 7077 | case OP_ENDSTR: |
| 7078 | case OP_PUSHTAGDELIM: |
| 7079 | fprintf(f, " %d", instr >> 8); |
| 7080 | break; |
| 7081 | case OP_SETBIGGROUPNUM: |
| 7082 | fprintf(f, " %d", *p++); |
| 7083 | break; |
| 7084 | case OP_CHECKDELIM: |
| 7085 | case OP_CALL: |
| 7086 | case OP_BRANCH: |
| 7087 | fprintf(f, " =>0x%tx", p + getofs(instr) - begin); |
| 7088 | break; |
| 7089 | case OP_TAG1: |
| 7090 | case OP_TAG2: { |
| 7091 | fprintf(f, " tag:0x%x", instr >> 16); |
| 7092 | if (getofs(instr)) { |
| 7093 | fprintf(f, " =>0x%tx", p + getofs(instr) - begin); |
| 7094 | } |
| 7095 | break; |
| 7096 | } |
| 7097 | case OP_TAGN: { |
| 7098 | uint64_t tag = *p++; |
| 7099 | tag |= (uint64_t)*p++ << 32; |
| 7100 | fprintf(f, " tag:0x%llx", (long long)tag); |
| 7101 | fprintf(f, " n:%d", instr >> 16); |
| 7102 | if (getofs(instr)) { |
| 7103 | fprintf(f, " =>0x%tx", p + getofs(instr) - begin); |
| 7104 | } |
| 7105 | break; |
| 7106 | } |
| 7107 | } |
| 7108 | fputs("\n", f); |
| 7109 | } |
| 7110 | } |
| 7111 | |
| 7112 | #endif |
| 7113 | |
| 7114 | static uint64_t get_encoded_tag(const upb_fielddef *f, int wire_type) { |
| 7115 | uint32_t tag = (upb_fielddef_number(f) << 3) | wire_type; |
| 7116 | uint64_t encoded_tag = upb_vencode32(tag); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7117 | /* No tag should be greater than 5 bytes. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7118 | assert(encoded_tag <= 0xffffffffff); |
| 7119 | return encoded_tag; |
| 7120 | } |
| 7121 | |
| 7122 | static void putchecktag(compiler *c, const upb_fielddef *f, |
| 7123 | int wire_type, int dest) { |
| 7124 | uint64_t tag = get_encoded_tag(f, wire_type); |
| 7125 | switch (upb_value_size(tag)) { |
| 7126 | case 1: |
| 7127 | putop(c, OP_TAG1, dest, tag); |
| 7128 | break; |
| 7129 | case 2: |
| 7130 | putop(c, OP_TAG2, dest, tag); |
| 7131 | break; |
| 7132 | default: |
| 7133 | putop(c, OP_TAGN, dest, tag); |
| 7134 | break; |
| 7135 | } |
| 7136 | } |
| 7137 | |
| 7138 | static upb_selector_t getsel(const upb_fielddef *f, upb_handlertype_t type) { |
| 7139 | upb_selector_t selector; |
| 7140 | bool ok = upb_handlers_getselector(f, type, &selector); |
| 7141 | UPB_ASSERT_VAR(ok, ok); |
| 7142 | return selector; |
| 7143 | } |
| 7144 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7145 | /* Takes an existing, primary dispatch table entry and repacks it with a |
| 7146 | * different alternate wire type. Called when we are inserting a secondary |
| 7147 | * dispatch table entry for an alternate wire type. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7148 | static uint64_t repack(uint64_t dispatch, int new_wt2) { |
| 7149 | uint64_t ofs; |
| 7150 | uint8_t wt1; |
| 7151 | uint8_t old_wt2; |
| 7152 | upb_pbdecoder_unpackdispatch(dispatch, &ofs, &wt1, &old_wt2); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7153 | assert(old_wt2 == NO_WIRE_TYPE); /* wt2 should not be set yet. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7154 | return upb_pbdecoder_packdispatch(ofs, wt1, new_wt2); |
| 7155 | } |
| 7156 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7157 | /* Marks the current bytecode position as the dispatch target for this message, |
| 7158 | * field, and wire type. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7159 | static void dispatchtarget(compiler *c, upb_pbdecodermethod *method, |
| 7160 | const upb_fielddef *f, int wire_type) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7161 | /* Offset is relative to msg base. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7162 | uint64_t ofs = pcofs(c) - method->code_base.ofs; |
| 7163 | uint32_t fn = upb_fielddef_number(f); |
| 7164 | upb_inttable *d = &method->dispatch; |
| 7165 | upb_value v; |
| 7166 | if (upb_inttable_remove(d, fn, &v)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7167 | /* TODO: prioritize based on packed setting in .proto file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7168 | uint64_t repacked = repack(upb_value_getuint64(v), wire_type); |
| 7169 | upb_inttable_insert(d, fn, upb_value_uint64(repacked)); |
| 7170 | upb_inttable_insert(d, fn + UPB_MAX_FIELDNUMBER, upb_value_uint64(ofs)); |
| 7171 | } else { |
| 7172 | uint64_t val = upb_pbdecoder_packdispatch(ofs, wire_type, NO_WIRE_TYPE); |
| 7173 | upb_inttable_insert(d, fn, upb_value_uint64(val)); |
| 7174 | } |
| 7175 | } |
| 7176 | |
| 7177 | static void putpush(compiler *c, const upb_fielddef *f) { |
| 7178 | if (upb_fielddef_descriptortype(f) == UPB_DESCRIPTOR_TYPE_MESSAGE) { |
| 7179 | putop(c, OP_PUSHLENDELIM); |
| 7180 | } else { |
| 7181 | uint32_t fn = upb_fielddef_number(f); |
| 7182 | if (fn >= 1 << 24) { |
| 7183 | putop(c, OP_PUSHTAGDELIM, 0); |
| 7184 | putop(c, OP_SETBIGGROUPNUM, fn); |
| 7185 | } else { |
| 7186 | putop(c, OP_PUSHTAGDELIM, fn); |
| 7187 | } |
| 7188 | } |
| 7189 | } |
| 7190 | |
| 7191 | static upb_pbdecodermethod *find_submethod(const compiler *c, |
| 7192 | const upb_pbdecodermethod *method, |
| 7193 | const upb_fielddef *f) { |
| 7194 | const upb_handlers *sub = |
| 7195 | upb_handlers_getsubhandlers(method->dest_handlers_, f); |
| 7196 | upb_value v; |
| 7197 | return upb_inttable_lookupptr(&c->group->methods, sub, &v) |
| 7198 | ? upb_value_getptr(v) |
| 7199 | : NULL; |
| 7200 | } |
| 7201 | |
| 7202 | static void putsel(compiler *c, opcode op, upb_selector_t sel, |
| 7203 | const upb_handlers *h) { |
| 7204 | if (upb_handlers_gethandler(h, sel)) { |
| 7205 | putop(c, op, sel); |
| 7206 | } |
| 7207 | } |
| 7208 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7209 | /* Puts an opcode to call a callback, but only if a callback actually exists for |
| 7210 | * this field and handler type. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7211 | static void maybeput(compiler *c, opcode op, const upb_handlers *h, |
| 7212 | const upb_fielddef *f, upb_handlertype_t type) { |
| 7213 | putsel(c, op, getsel(f, type), h); |
| 7214 | } |
| 7215 | |
| 7216 | static bool haslazyhandlers(const upb_handlers *h, const upb_fielddef *f) { |
| 7217 | if (!upb_fielddef_lazy(f)) |
| 7218 | return false; |
| 7219 | |
| 7220 | return upb_handlers_gethandler(h, getsel(f, UPB_HANDLER_STARTSTR)) || |
| 7221 | upb_handlers_gethandler(h, getsel(f, UPB_HANDLER_STRING)) || |
| 7222 | upb_handlers_gethandler(h, getsel(f, UPB_HANDLER_ENDSTR)); |
| 7223 | } |
| 7224 | |
| 7225 | |
| 7226 | /* bytecode compiler code generation ******************************************/ |
| 7227 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7228 | /* Symbolic names for our local labels. */ |
| 7229 | #define LABEL_LOOPSTART 1 /* Top of a repeated field loop. */ |
| 7230 | #define LABEL_LOOPBREAK 2 /* To jump out of a repeated loop */ |
| 7231 | #define LABEL_FIELD 3 /* Jump backward to find the most recent field. */ |
| 7232 | #define LABEL_ENDMSG 4 /* To reach the OP_ENDMSG instr for this msg. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7233 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7234 | /* Generates bytecode to parse a single non-lazy message field. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7235 | static void generate_msgfield(compiler *c, const upb_fielddef *f, |
| 7236 | upb_pbdecodermethod *method) { |
| 7237 | const upb_handlers *h = upb_pbdecodermethod_desthandlers(method); |
| 7238 | const upb_pbdecodermethod *sub_m = find_submethod(c, method, f); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7239 | int wire_type; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7240 | |
| 7241 | if (!sub_m) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7242 | /* Don't emit any code for this field at all; it will be parsed as an |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7243 | * unknown field. |
| 7244 | * |
| 7245 | * TODO(haberman): we should change this to parse it as a string field |
| 7246 | * instead. It will probably be faster, but more importantly, once we |
| 7247 | * start vending unknown fields, a field shouldn't be treated as unknown |
| 7248 | * just because it doesn't have subhandlers registered. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7249 | return; |
| 7250 | } |
| 7251 | |
| 7252 | label(c, LABEL_FIELD); |
| 7253 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7254 | wire_type = |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7255 | (upb_fielddef_descriptortype(f) == UPB_DESCRIPTOR_TYPE_MESSAGE) |
| 7256 | ? UPB_WIRE_TYPE_DELIMITED |
| 7257 | : UPB_WIRE_TYPE_START_GROUP; |
| 7258 | |
| 7259 | if (upb_fielddef_isseq(f)) { |
| 7260 | putop(c, OP_CHECKDELIM, LABEL_ENDMSG); |
| 7261 | putchecktag(c, f, wire_type, LABEL_DISPATCH); |
| 7262 | dispatchtarget(c, method, f, wire_type); |
| 7263 | putop(c, OP_PUSHTAGDELIM, 0); |
| 7264 | putop(c, OP_STARTSEQ, getsel(f, UPB_HANDLER_STARTSEQ)); |
| 7265 | label(c, LABEL_LOOPSTART); |
| 7266 | putpush(c, f); |
| 7267 | putop(c, OP_STARTSUBMSG, getsel(f, UPB_HANDLER_STARTSUBMSG)); |
| 7268 | putop(c, OP_CALL, sub_m); |
| 7269 | putop(c, OP_POP); |
| 7270 | maybeput(c, OP_ENDSUBMSG, h, f, UPB_HANDLER_ENDSUBMSG); |
| 7271 | if (wire_type == UPB_WIRE_TYPE_DELIMITED) { |
| 7272 | putop(c, OP_SETDELIM); |
| 7273 | } |
| 7274 | putop(c, OP_CHECKDELIM, LABEL_LOOPBREAK); |
| 7275 | putchecktag(c, f, wire_type, LABEL_LOOPBREAK); |
| 7276 | putop(c, OP_BRANCH, -LABEL_LOOPSTART); |
| 7277 | label(c, LABEL_LOOPBREAK); |
| 7278 | putop(c, OP_POP); |
| 7279 | maybeput(c, OP_ENDSEQ, h, f, UPB_HANDLER_ENDSEQ); |
| 7280 | } else { |
| 7281 | putop(c, OP_CHECKDELIM, LABEL_ENDMSG); |
| 7282 | putchecktag(c, f, wire_type, LABEL_DISPATCH); |
| 7283 | dispatchtarget(c, method, f, wire_type); |
| 7284 | putpush(c, f); |
| 7285 | putop(c, OP_STARTSUBMSG, getsel(f, UPB_HANDLER_STARTSUBMSG)); |
| 7286 | putop(c, OP_CALL, sub_m); |
| 7287 | putop(c, OP_POP); |
| 7288 | maybeput(c, OP_ENDSUBMSG, h, f, UPB_HANDLER_ENDSUBMSG); |
| 7289 | if (wire_type == UPB_WIRE_TYPE_DELIMITED) { |
| 7290 | putop(c, OP_SETDELIM); |
| 7291 | } |
| 7292 | } |
| 7293 | } |
| 7294 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7295 | /* Generates bytecode to parse a single string or lazy submessage field. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7296 | static void generate_delimfield(compiler *c, const upb_fielddef *f, |
| 7297 | upb_pbdecodermethod *method) { |
| 7298 | const upb_handlers *h = upb_pbdecodermethod_desthandlers(method); |
| 7299 | |
| 7300 | label(c, LABEL_FIELD); |
| 7301 | if (upb_fielddef_isseq(f)) { |
| 7302 | putop(c, OP_CHECKDELIM, LABEL_ENDMSG); |
| 7303 | putchecktag(c, f, UPB_WIRE_TYPE_DELIMITED, LABEL_DISPATCH); |
| 7304 | dispatchtarget(c, method, f, UPB_WIRE_TYPE_DELIMITED); |
| 7305 | putop(c, OP_PUSHTAGDELIM, 0); |
| 7306 | putop(c, OP_STARTSEQ, getsel(f, UPB_HANDLER_STARTSEQ)); |
| 7307 | label(c, LABEL_LOOPSTART); |
| 7308 | putop(c, OP_PUSHLENDELIM); |
| 7309 | putop(c, OP_STARTSTR, getsel(f, UPB_HANDLER_STARTSTR)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7310 | /* Need to emit even if no handler to skip past the string. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7311 | putop(c, OP_STRING, getsel(f, UPB_HANDLER_STRING)); |
| 7312 | putop(c, OP_POP); |
| 7313 | maybeput(c, OP_ENDSTR, h, f, UPB_HANDLER_ENDSTR); |
| 7314 | putop(c, OP_SETDELIM); |
| 7315 | putop(c, OP_CHECKDELIM, LABEL_LOOPBREAK); |
| 7316 | putchecktag(c, f, UPB_WIRE_TYPE_DELIMITED, LABEL_LOOPBREAK); |
| 7317 | putop(c, OP_BRANCH, -LABEL_LOOPSTART); |
| 7318 | label(c, LABEL_LOOPBREAK); |
| 7319 | putop(c, OP_POP); |
| 7320 | maybeput(c, OP_ENDSEQ, h, f, UPB_HANDLER_ENDSEQ); |
| 7321 | } else { |
| 7322 | putop(c, OP_CHECKDELIM, LABEL_ENDMSG); |
| 7323 | putchecktag(c, f, UPB_WIRE_TYPE_DELIMITED, LABEL_DISPATCH); |
| 7324 | dispatchtarget(c, method, f, UPB_WIRE_TYPE_DELIMITED); |
| 7325 | putop(c, OP_PUSHLENDELIM); |
| 7326 | putop(c, OP_STARTSTR, getsel(f, UPB_HANDLER_STARTSTR)); |
| 7327 | putop(c, OP_STRING, getsel(f, UPB_HANDLER_STRING)); |
| 7328 | putop(c, OP_POP); |
| 7329 | maybeput(c, OP_ENDSTR, h, f, UPB_HANDLER_ENDSTR); |
| 7330 | putop(c, OP_SETDELIM); |
| 7331 | } |
| 7332 | } |
| 7333 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7334 | /* Generates bytecode to parse a single primitive field. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7335 | static void generate_primitivefield(compiler *c, const upb_fielddef *f, |
| 7336 | upb_pbdecodermethod *method) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7337 | const upb_handlers *h = upb_pbdecodermethod_desthandlers(method); |
| 7338 | upb_descriptortype_t descriptor_type = upb_fielddef_descriptortype(f); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7339 | opcode parse_type; |
| 7340 | upb_selector_t sel; |
| 7341 | int wire_type; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7342 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7343 | label(c, LABEL_FIELD); |
| 7344 | |
| 7345 | /* From a decoding perspective, ENUM is the same as INT32. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7346 | if (descriptor_type == UPB_DESCRIPTOR_TYPE_ENUM) |
| 7347 | descriptor_type = UPB_DESCRIPTOR_TYPE_INT32; |
| 7348 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7349 | parse_type = (opcode)descriptor_type; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7350 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7351 | /* TODO(haberman): generate packed or non-packed first depending on "packed" |
| 7352 | * setting in the fielddef. This will favor (in speed) whichever was |
| 7353 | * specified. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7354 | |
| 7355 | assert((int)parse_type >= 0 && parse_type <= OP_MAX); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7356 | sel = getsel(f, upb_handlers_getprimitivehandlertype(f)); |
| 7357 | wire_type = upb_pb_native_wire_types[upb_fielddef_descriptortype(f)]; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7358 | if (upb_fielddef_isseq(f)) { |
| 7359 | putop(c, OP_CHECKDELIM, LABEL_ENDMSG); |
| 7360 | putchecktag(c, f, UPB_WIRE_TYPE_DELIMITED, LABEL_DISPATCH); |
| 7361 | dispatchtarget(c, method, f, UPB_WIRE_TYPE_DELIMITED); |
| 7362 | putop(c, OP_PUSHLENDELIM); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7363 | putop(c, OP_STARTSEQ, getsel(f, UPB_HANDLER_STARTSEQ)); /* Packed */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7364 | label(c, LABEL_LOOPSTART); |
| 7365 | putop(c, parse_type, sel); |
| 7366 | putop(c, OP_CHECKDELIM, LABEL_LOOPBREAK); |
| 7367 | putop(c, OP_BRANCH, -LABEL_LOOPSTART); |
| 7368 | dispatchtarget(c, method, f, wire_type); |
| 7369 | putop(c, OP_PUSHTAGDELIM, 0); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7370 | putop(c, OP_STARTSEQ, getsel(f, UPB_HANDLER_STARTSEQ)); /* Non-packed */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7371 | label(c, LABEL_LOOPSTART); |
| 7372 | putop(c, parse_type, sel); |
| 7373 | putop(c, OP_CHECKDELIM, LABEL_LOOPBREAK); |
| 7374 | putchecktag(c, f, wire_type, LABEL_LOOPBREAK); |
| 7375 | putop(c, OP_BRANCH, -LABEL_LOOPSTART); |
| 7376 | label(c, LABEL_LOOPBREAK); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7377 | putop(c, OP_POP); /* Packed and non-packed join. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7378 | maybeput(c, OP_ENDSEQ, h, f, UPB_HANDLER_ENDSEQ); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7379 | putop(c, OP_SETDELIM); /* Could remove for non-packed by dup ENDSEQ. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7380 | } else { |
| 7381 | putop(c, OP_CHECKDELIM, LABEL_ENDMSG); |
| 7382 | putchecktag(c, f, wire_type, LABEL_DISPATCH); |
| 7383 | dispatchtarget(c, method, f, wire_type); |
| 7384 | putop(c, parse_type, sel); |
| 7385 | } |
| 7386 | } |
| 7387 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7388 | /* Adds bytecode for parsing the given message to the given decoderplan, |
| 7389 | * while adding all dispatch targets to this message's dispatch table. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7390 | static void compile_method(compiler *c, upb_pbdecodermethod *method) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7391 | const upb_handlers *h; |
| 7392 | const upb_msgdef *md; |
| 7393 | uint32_t* start_pc; |
| 7394 | upb_msg_field_iter i; |
| 7395 | upb_value val; |
| 7396 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7397 | assert(method); |
| 7398 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7399 | /* Clear all entries in the dispatch table. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7400 | upb_inttable_uninit(&method->dispatch); |
| 7401 | upb_inttable_init(&method->dispatch, UPB_CTYPE_UINT64); |
| 7402 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7403 | h = upb_pbdecodermethod_desthandlers(method); |
| 7404 | md = upb_handlers_msgdef(h); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7405 | |
| 7406 | method->code_base.ofs = pcofs(c); |
| 7407 | putop(c, OP_SETDISPATCH, &method->dispatch); |
| 7408 | putsel(c, OP_STARTMSG, UPB_STARTMSG_SELECTOR, h); |
| 7409 | label(c, LABEL_FIELD); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7410 | start_pc = c->pc; |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 7411 | for(upb_msg_field_begin(&i, md); |
| 7412 | !upb_msg_field_done(&i); |
| 7413 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7414 | const upb_fielddef *f = upb_msg_iter_field(&i); |
| 7415 | upb_fieldtype_t type = upb_fielddef_type(f); |
| 7416 | |
| 7417 | if (type == UPB_TYPE_MESSAGE && !(haslazyhandlers(h, f) && c->lazy)) { |
| 7418 | generate_msgfield(c, f, method); |
| 7419 | } else if (type == UPB_TYPE_STRING || type == UPB_TYPE_BYTES || |
| 7420 | type == UPB_TYPE_MESSAGE) { |
| 7421 | generate_delimfield(c, f, method); |
| 7422 | } else { |
| 7423 | generate_primitivefield(c, f, method); |
| 7424 | } |
| 7425 | } |
| 7426 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7427 | /* If there were no fields, or if no handlers were defined, we need to |
| 7428 | * generate a non-empty loop body so that we can at least dispatch for unknown |
| 7429 | * fields and check for the end of the message. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 7430 | if (c->pc == start_pc) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7431 | /* Check for end-of-message. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 7432 | putop(c, OP_CHECKDELIM, LABEL_ENDMSG); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7433 | /* Unconditionally dispatch. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 7434 | putop(c, OP_DISPATCH, 0); |
| 7435 | } |
| 7436 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7437 | /* For now we just loop back to the last field of the message (or if none, |
| 7438 | * the DISPATCH opcode for the message). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7439 | putop(c, OP_BRANCH, -LABEL_FIELD); |
| 7440 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7441 | /* Insert both a label and a dispatch table entry for this end-of-msg. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7442 | label(c, LABEL_ENDMSG); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7443 | val = upb_value_uint64(pcofs(c) - method->code_base.ofs); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7444 | upb_inttable_insert(&method->dispatch, DISPATCH_ENDMSG, val); |
| 7445 | |
| 7446 | putsel(c, OP_ENDMSG, UPB_ENDMSG_SELECTOR, h); |
| 7447 | putop(c, OP_RET); |
| 7448 | |
| 7449 | upb_inttable_compact(&method->dispatch); |
| 7450 | } |
| 7451 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7452 | /* Populate "methods" with new upb_pbdecodermethod objects reachable from "h". |
| 7453 | * Returns the method for these handlers. |
| 7454 | * |
| 7455 | * Generates a new method for every destination handlers reachable from "h". */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7456 | static void find_methods(compiler *c, const upb_handlers *h) { |
| 7457 | upb_value v; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7458 | upb_msg_field_iter i; |
| 7459 | const upb_msgdef *md; |
| 7460 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7461 | if (upb_inttable_lookupptr(&c->group->methods, h, &v)) |
| 7462 | return; |
| 7463 | newmethod(h, c->group); |
| 7464 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7465 | /* Find submethods. */ |
| 7466 | md = upb_handlers_msgdef(h); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 7467 | for(upb_msg_field_begin(&i, md); |
| 7468 | !upb_msg_field_done(&i); |
| 7469 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7470 | const upb_fielddef *f = upb_msg_iter_field(&i); |
| 7471 | const upb_handlers *sub_h; |
| 7472 | if (upb_fielddef_type(f) == UPB_TYPE_MESSAGE && |
| 7473 | (sub_h = upb_handlers_getsubhandlers(h, f)) != NULL) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7474 | /* We only generate a decoder method for submessages with handlers. |
| 7475 | * Others will be parsed as unknown fields. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7476 | find_methods(c, sub_h); |
| 7477 | } |
| 7478 | } |
| 7479 | } |
| 7480 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7481 | /* (Re-)compile bytecode for all messages in "msgs." |
| 7482 | * Overwrites any existing bytecode in "c". */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7483 | static void compile_methods(compiler *c) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7484 | upb_inttable_iter i; |
| 7485 | |
| 7486 | /* Start over at the beginning of the bytecode. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7487 | c->pc = c->group->bytecode; |
| 7488 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7489 | upb_inttable_begin(&i, &c->group->methods); |
| 7490 | for(; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
| 7491 | upb_pbdecodermethod *method = upb_value_getptr(upb_inttable_iter_value(&i)); |
| 7492 | compile_method(c, method); |
| 7493 | } |
| 7494 | } |
| 7495 | |
| 7496 | static void set_bytecode_handlers(mgroup *g) { |
| 7497 | upb_inttable_iter i; |
| 7498 | upb_inttable_begin(&i, &g->methods); |
| 7499 | for(; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
| 7500 | upb_pbdecodermethod *m = upb_value_getptr(upb_inttable_iter_value(&i)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7501 | upb_byteshandler *h = &m->input_handler_; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7502 | |
| 7503 | m->code_base.ptr = g->bytecode + m->code_base.ofs; |
| 7504 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7505 | upb_byteshandler_setstartstr(h, upb_pbdecoder_startbc, m->code_base.ptr); |
| 7506 | upb_byteshandler_setstring(h, upb_pbdecoder_decode, g); |
| 7507 | upb_byteshandler_setendstr(h, upb_pbdecoder_end, m); |
| 7508 | } |
| 7509 | } |
| 7510 | |
| 7511 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 7512 | /* JIT setup. *****************************************************************/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7513 | |
| 7514 | #ifdef UPB_USE_JIT_X64 |
| 7515 | |
| 7516 | static void sethandlers(mgroup *g, bool allowjit) { |
| 7517 | g->jit_code = NULL; |
| 7518 | if (allowjit) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7519 | /* Compile byte-code into machine code, create handlers. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7520 | upb_pbdecoder_jit(g); |
| 7521 | } else { |
| 7522 | set_bytecode_handlers(g); |
| 7523 | } |
| 7524 | } |
| 7525 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7526 | #else /* UPB_USE_JIT_X64 */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7527 | |
| 7528 | static void sethandlers(mgroup *g, bool allowjit) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7529 | /* No JIT compiled in; use bytecode handlers unconditionally. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7530 | UPB_UNUSED(allowjit); |
| 7531 | set_bytecode_handlers(g); |
| 7532 | } |
| 7533 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7534 | #endif /* UPB_USE_JIT_X64 */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7535 | |
| 7536 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7537 | /* TODO(haberman): allow this to be constructed for an arbitrary set of dest |
| 7538 | * handlers and other mgroups (but verify we have a transitive closure). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7539 | const mgroup *mgroup_new(const upb_handlers *dest, bool allowjit, bool lazy, |
| 7540 | const void *owner) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7541 | mgroup *g; |
| 7542 | compiler *c; |
| 7543 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7544 | UPB_UNUSED(allowjit); |
| 7545 | assert(upb_handlers_isfrozen(dest)); |
| 7546 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7547 | g = newgroup(owner); |
| 7548 | c = newcompiler(g, lazy); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7549 | find_methods(c, dest); |
| 7550 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7551 | /* We compile in two passes: |
| 7552 | * 1. all messages are assigned relative offsets from the beginning of the |
| 7553 | * bytecode (saved in method->code_base). |
| 7554 | * 2. forwards OP_CALL instructions can be correctly linked since message |
| 7555 | * offsets have been previously assigned. |
| 7556 | * |
| 7557 | * Could avoid the second pass by linking OP_CALL instructions somehow. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7558 | compile_methods(c); |
| 7559 | compile_methods(c); |
| 7560 | g->bytecode_end = c->pc; |
| 7561 | freecompiler(c); |
| 7562 | |
| 7563 | #ifdef UPB_DUMP_BYTECODE |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7564 | { |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 7565 | FILE *f = fopen("/tmp/upb-bytecode", "w"); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7566 | assert(f); |
| 7567 | dumpbc(g->bytecode, g->bytecode_end, stderr); |
| 7568 | dumpbc(g->bytecode, g->bytecode_end, f); |
| 7569 | fclose(f); |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 7570 | |
| 7571 | f = fopen("/tmp/upb-bytecode.bin", "wb"); |
| 7572 | assert(f); |
| 7573 | fwrite(g->bytecode, 1, g->bytecode_end - g->bytecode, f); |
| 7574 | fclose(f); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7575 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7576 | #endif |
| 7577 | |
| 7578 | sethandlers(g, allowjit); |
| 7579 | return g; |
| 7580 | } |
| 7581 | |
| 7582 | |
| 7583 | /* upb_pbcodecache ************************************************************/ |
| 7584 | |
| 7585 | void upb_pbcodecache_init(upb_pbcodecache *c) { |
| 7586 | upb_inttable_init(&c->groups, UPB_CTYPE_CONSTPTR); |
| 7587 | c->allow_jit_ = true; |
| 7588 | } |
| 7589 | |
| 7590 | void upb_pbcodecache_uninit(upb_pbcodecache *c) { |
| 7591 | upb_inttable_iter i; |
| 7592 | upb_inttable_begin(&i, &c->groups); |
| 7593 | for(; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
| 7594 | const mgroup *group = upb_value_getconstptr(upb_inttable_iter_value(&i)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7595 | mgroup_unref(group, c); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7596 | } |
| 7597 | upb_inttable_uninit(&c->groups); |
| 7598 | } |
| 7599 | |
| 7600 | bool upb_pbcodecache_allowjit(const upb_pbcodecache *c) { |
| 7601 | return c->allow_jit_; |
| 7602 | } |
| 7603 | |
| 7604 | bool upb_pbcodecache_setallowjit(upb_pbcodecache *c, bool allow) { |
| 7605 | if (upb_inttable_count(&c->groups) > 0) |
| 7606 | return false; |
| 7607 | c->allow_jit_ = allow; |
| 7608 | return true; |
| 7609 | } |
| 7610 | |
| 7611 | const upb_pbdecodermethod *upb_pbcodecache_getdecodermethod( |
| 7612 | upb_pbcodecache *c, const upb_pbdecodermethodopts *opts) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7613 | upb_value v; |
| 7614 | bool ok; |
| 7615 | |
| 7616 | /* Right now we build a new DecoderMethod every time. |
| 7617 | * TODO(haberman): properly cache methods by their true key. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7618 | const mgroup *g = mgroup_new(opts->handlers, c->allow_jit_, opts->lazy, c); |
| 7619 | upb_inttable_push(&c->groups, upb_value_constptr(g)); |
| 7620 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7621 | ok = upb_inttable_lookupptr(&g->methods, opts->handlers, &v); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7622 | UPB_ASSERT_VAR(ok, ok); |
| 7623 | return upb_value_getptr(v); |
| 7624 | } |
| 7625 | |
| 7626 | |
| 7627 | /* upb_pbdecodermethodopts ****************************************************/ |
| 7628 | |
| 7629 | void upb_pbdecodermethodopts_init(upb_pbdecodermethodopts *opts, |
| 7630 | const upb_handlers *h) { |
| 7631 | opts->handlers = h; |
| 7632 | opts->lazy = false; |
| 7633 | } |
| 7634 | |
| 7635 | void upb_pbdecodermethodopts_setlazy(upb_pbdecodermethodopts *opts, bool lazy) { |
| 7636 | opts->lazy = lazy; |
| 7637 | } |
| 7638 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 7639 | ** upb::Decoder (Bytecode Decoder VM) |
| 7640 | ** |
| 7641 | ** Bytecode must previously have been generated using the bytecode compiler in |
| 7642 | ** compile_decoder.c. This decoder then walks through the bytecode op-by-op to |
| 7643 | ** parse the input. |
| 7644 | ** |
| 7645 | ** Decoding is fully resumable; we just keep a pointer to the current bytecode |
| 7646 | ** instruction and resume from there. A fair amount of the logic here is to |
| 7647 | ** handle the fact that values can span buffer seams and we have to be able to |
| 7648 | ** be capable of suspending/resuming from any byte in the stream. This |
| 7649 | ** sometimes requires keeping a few trailing bytes from the last buffer around |
| 7650 | ** in the "residual" buffer. |
| 7651 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7652 | |
| 7653 | #include <inttypes.h> |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7654 | #include <stddef.h> |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7655 | |
| 7656 | #ifdef UPB_DUMP_BYTECODE |
| 7657 | #include <stdio.h> |
| 7658 | #endif |
| 7659 | |
| 7660 | #define CHECK_SUSPEND(x) if (!(x)) return upb_pbdecoder_suspend(d); |
| 7661 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7662 | /* Error messages that are shared between the bytecode and JIT decoders. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7663 | const char *kPbDecoderStackOverflow = "Nesting too deep."; |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7664 | const char *kPbDecoderSubmessageTooLong = |
| 7665 | "Submessage end extends past enclosing submessage."; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7666 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7667 | /* Error messages shared within this file. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7668 | static const char *kUnterminatedVarint = "Unterminated varint."; |
| 7669 | |
| 7670 | /* upb_pbdecoder **************************************************************/ |
| 7671 | |
| 7672 | static opcode halt = OP_HALT; |
| 7673 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7674 | /* A dummy character we can point to when the user passes us a NULL buffer. |
| 7675 | * We need this because in C (NULL + 0) and (NULL - NULL) are undefined |
| 7676 | * behavior, which would invalidate functions like curbufleft(). */ |
| 7677 | static const char dummy_char; |
| 7678 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7679 | /* Whether an op consumes any of the input buffer. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7680 | static bool consumes_input(opcode op) { |
| 7681 | switch (op) { |
| 7682 | case OP_SETDISPATCH: |
| 7683 | case OP_STARTMSG: |
| 7684 | case OP_ENDMSG: |
| 7685 | case OP_STARTSEQ: |
| 7686 | case OP_ENDSEQ: |
| 7687 | case OP_STARTSUBMSG: |
| 7688 | case OP_ENDSUBMSG: |
| 7689 | case OP_STARTSTR: |
| 7690 | case OP_ENDSTR: |
| 7691 | case OP_PUSHTAGDELIM: |
| 7692 | case OP_POP: |
| 7693 | case OP_SETDELIM: |
| 7694 | case OP_SETBIGGROUPNUM: |
| 7695 | case OP_CHECKDELIM: |
| 7696 | case OP_CALL: |
| 7697 | case OP_RET: |
| 7698 | case OP_BRANCH: |
| 7699 | return false; |
| 7700 | default: |
| 7701 | return true; |
| 7702 | } |
| 7703 | } |
| 7704 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7705 | static size_t stacksize(upb_pbdecoder *d, size_t entries) { |
| 7706 | UPB_UNUSED(d); |
| 7707 | return entries * sizeof(upb_pbdecoder_frame); |
| 7708 | } |
| 7709 | |
| 7710 | static size_t callstacksize(upb_pbdecoder *d, size_t entries) { |
| 7711 | UPB_UNUSED(d); |
| 7712 | |
| 7713 | #ifdef UPB_USE_JIT_X64 |
| 7714 | if (d->method_->is_native_) { |
| 7715 | /* Each native stack frame needs two pointers, plus we need a few frames for |
| 7716 | * the enter/exit trampolines. */ |
| 7717 | size_t ret = entries * sizeof(void*) * 2; |
| 7718 | ret += sizeof(void*) * 10; |
| 7719 | return ret; |
| 7720 | } |
| 7721 | #endif |
| 7722 | |
| 7723 | return entries * sizeof(uint32_t*); |
| 7724 | } |
| 7725 | |
| 7726 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7727 | static bool in_residual_buf(const upb_pbdecoder *d, const char *p); |
| 7728 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7729 | /* It's unfortunate that we have to micro-manage the compiler with |
| 7730 | * UPB_FORCEINLINE and UPB_NOINLINE, especially since this tuning is necessarily |
| 7731 | * specific to one hardware configuration. But empirically on a Core i7, |
| 7732 | * performance increases 30-50% with these annotations. Every instance where |
| 7733 | * these appear, gcc 4.2.1 made the wrong decision and degraded performance in |
| 7734 | * benchmarks. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7735 | |
| 7736 | static void seterr(upb_pbdecoder *d, const char *msg) { |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 7737 | upb_status status = UPB_STATUS_INIT; |
| 7738 | upb_status_seterrmsg(&status, msg); |
| 7739 | upb_env_reporterror(d->env, &status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7740 | } |
| 7741 | |
| 7742 | void upb_pbdecoder_seterr(upb_pbdecoder *d, const char *msg) { |
| 7743 | seterr(d, msg); |
| 7744 | } |
| 7745 | |
| 7746 | |
| 7747 | /* Buffering ******************************************************************/ |
| 7748 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7749 | /* We operate on one buffer at a time, which is either the user's buffer passed |
| 7750 | * to our "decode" callback or some residual bytes from the previous buffer. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7751 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7752 | /* How many bytes can be safely read from d->ptr without reading past end-of-buf |
| 7753 | * or past the current delimited end. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7754 | static size_t curbufleft(const upb_pbdecoder *d) { |
| 7755 | assert(d->data_end >= d->ptr); |
| 7756 | return d->data_end - d->ptr; |
| 7757 | } |
| 7758 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7759 | /* How many bytes are available before end-of-buffer. */ |
| 7760 | static size_t bufleft(const upb_pbdecoder *d) { |
| 7761 | return d->end - d->ptr; |
| 7762 | } |
| 7763 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7764 | /* Overall stream offset of d->ptr. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7765 | uint64_t offset(const upb_pbdecoder *d) { |
| 7766 | return d->bufstart_ofs + (d->ptr - d->buf); |
| 7767 | } |
| 7768 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7769 | /* How many bytes are available before the end of this delimited region. */ |
| 7770 | size_t delim_remaining(const upb_pbdecoder *d) { |
| 7771 | return d->top->end_ofs - offset(d); |
| 7772 | } |
| 7773 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7774 | /* Advances d->ptr. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7775 | static void advance(upb_pbdecoder *d, size_t len) { |
| 7776 | assert(curbufleft(d) >= len); |
| 7777 | d->ptr += len; |
| 7778 | } |
| 7779 | |
| 7780 | static bool in_buf(const char *p, const char *buf, const char *end) { |
| 7781 | return p >= buf && p <= end; |
| 7782 | } |
| 7783 | |
| 7784 | static bool in_residual_buf(const upb_pbdecoder *d, const char *p) { |
| 7785 | return in_buf(p, d->residual, d->residual_end); |
| 7786 | } |
| 7787 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7788 | /* Calculates the delim_end value, which is affected by both the current buffer |
| 7789 | * and the parsing stack, so must be called whenever either is updated. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7790 | static void set_delim_end(upb_pbdecoder *d) { |
| 7791 | size_t delim_ofs = d->top->end_ofs - d->bufstart_ofs; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 7792 | if (delim_ofs <= (size_t)(d->end - d->buf)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7793 | d->delim_end = d->buf + delim_ofs; |
| 7794 | d->data_end = d->delim_end; |
| 7795 | } else { |
| 7796 | d->data_end = d->end; |
| 7797 | d->delim_end = NULL; |
| 7798 | } |
| 7799 | } |
| 7800 | |
| 7801 | static void switchtobuf(upb_pbdecoder *d, const char *buf, const char *end) { |
| 7802 | d->ptr = buf; |
| 7803 | d->buf = buf; |
| 7804 | d->end = end; |
| 7805 | set_delim_end(d); |
| 7806 | } |
| 7807 | |
| 7808 | static void advancetobuf(upb_pbdecoder *d, const char *buf, size_t len) { |
| 7809 | assert(curbufleft(d) == 0); |
| 7810 | d->bufstart_ofs += (d->end - d->buf); |
| 7811 | switchtobuf(d, buf, buf + len); |
| 7812 | } |
| 7813 | |
| 7814 | static void checkpoint(upb_pbdecoder *d) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7815 | /* The assertion here is in the interests of efficiency, not correctness. |
| 7816 | * We are trying to ensure that we don't checkpoint() more often than |
| 7817 | * necessary. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7818 | assert(d->checkpoint != d->ptr); |
| 7819 | d->checkpoint = d->ptr; |
| 7820 | } |
| 7821 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7822 | /* Skips "bytes" bytes in the stream, which may be more than available. If we |
| 7823 | * skip more bytes than are available, we return a long read count to the caller |
| 7824 | * indicating how many bytes can be skipped over before passing actual data |
| 7825 | * again. Skipped bytes can pass a NULL buffer and the decoder guarantees they |
| 7826 | * won't actually be read. |
| 7827 | */ |
| 7828 | static int32_t skip(upb_pbdecoder *d, size_t bytes) { |
| 7829 | assert(!in_residual_buf(d, d->ptr) || d->size_param == 0); |
| 7830 | assert(d->skip == 0); |
| 7831 | if (bytes > delim_remaining(d)) { |
| 7832 | seterr(d, "Skipped value extended beyond enclosing submessage."); |
| 7833 | return upb_pbdecoder_suspend(d); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7834 | } else if (bufleft(d) >= bytes) { |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7835 | /* Skipped data is all in current buffer, and more is still available. */ |
| 7836 | advance(d, bytes); |
| 7837 | d->skip = 0; |
| 7838 | return DECODE_OK; |
| 7839 | } else { |
| 7840 | /* Skipped data extends beyond currently available buffers. */ |
| 7841 | d->pc = d->last; |
| 7842 | d->skip = bytes - curbufleft(d); |
| 7843 | d->bufstart_ofs += (d->end - d->buf); |
| 7844 | d->residual_end = d->residual; |
| 7845 | switchtobuf(d, d->residual, d->residual_end); |
| 7846 | return d->size_param + d->skip; |
| 7847 | } |
| 7848 | } |
| 7849 | |
| 7850 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7851 | /* Resumes the decoder from an initial state or from a previous suspend. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7852 | int32_t upb_pbdecoder_resume(upb_pbdecoder *d, void *p, const char *buf, |
| 7853 | size_t size, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7854 | UPB_UNUSED(p); /* Useless; just for the benefit of the JIT. */ |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7855 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7856 | /* d->skip and d->residual_end could probably elegantly be represented |
| 7857 | * as a single variable, to more easily represent this invariant. */ |
| 7858 | assert(!(d->skip && d->residual_end > d->residual)); |
| 7859 | |
| 7860 | /* We need to remember the original size_param, so that the value we return |
| 7861 | * is relative to it, even if we do some skipping first. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7862 | d->size_param = size; |
| 7863 | d->handle = handle; |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7864 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7865 | /* Have to handle this case specially (ie. not with skip()) because the user |
| 7866 | * is allowed to pass a NULL buffer here, which won't allow us to safely |
| 7867 | * calculate a d->end or use our normal functions like curbufleft(). */ |
| 7868 | if (d->skip && d->skip >= size) { |
| 7869 | d->skip -= size; |
| 7870 | d->bufstart_ofs += size; |
| 7871 | buf = &dummy_char; |
| 7872 | size = 0; |
| 7873 | |
| 7874 | /* We can't just return now, because we might need to execute some ops |
| 7875 | * like CHECKDELIM, which could call some callbacks and pop the stack. */ |
| 7876 | } |
| 7877 | |
| 7878 | /* We need to pretend that this was the actual buffer param, since some of the |
| 7879 | * calculations assume that d->ptr/d->buf is relative to this. */ |
| 7880 | d->buf_param = buf; |
| 7881 | |
| 7882 | if (!buf) { |
| 7883 | /* NULL buf is ok if its entire span is covered by the "skip" above, but |
| 7884 | * by this point we know that "skip" doesn't cover the buffer. */ |
| 7885 | seterr(d, "Passed NULL buffer over non-skippable region."); |
| 7886 | return upb_pbdecoder_suspend(d); |
| 7887 | } |
| 7888 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7889 | if (d->residual_end > d->residual) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7890 | /* We have residual bytes from the last buffer. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7891 | assert(d->ptr == d->residual); |
| 7892 | } else { |
| 7893 | switchtobuf(d, buf, buf + size); |
| 7894 | } |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7895 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7896 | d->checkpoint = d->ptr; |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7897 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7898 | /* Handle skips that don't cover the whole buffer (as above). */ |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7899 | if (d->skip) { |
| 7900 | size_t skip_bytes = d->skip; |
| 7901 | d->skip = 0; |
| 7902 | CHECK_RETURN(skip(d, skip_bytes)); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7903 | checkpoint(d); |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7904 | } |
| 7905 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7906 | /* If we're inside an unknown group, continue to parse unknown values. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7907 | if (d->top->groupnum < 0) { |
| 7908 | CHECK_RETURN(upb_pbdecoder_skipunknown(d, -1, 0)); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7909 | checkpoint(d); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7910 | } |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 7911 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7912 | return DECODE_OK; |
| 7913 | } |
| 7914 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7915 | /* Suspends the decoder at the last checkpoint, without saving any residual |
| 7916 | * bytes. If there are any unconsumed bytes, returns a short byte count. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7917 | size_t upb_pbdecoder_suspend(upb_pbdecoder *d) { |
| 7918 | d->pc = d->last; |
| 7919 | if (d->checkpoint == d->residual) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7920 | /* Checkpoint was in residual buf; no user bytes were consumed. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7921 | d->ptr = d->residual; |
| 7922 | return 0; |
| 7923 | } else { |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7924 | size_t ret = d->size_param - (d->end - d->checkpoint); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7925 | assert(!in_residual_buf(d, d->checkpoint)); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7926 | assert(d->buf == d->buf_param || d->buf == &dummy_char); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7927 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7928 | d->bufstart_ofs += (d->checkpoint - d->buf); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7929 | d->residual_end = d->residual; |
| 7930 | switchtobuf(d, d->residual, d->residual_end); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 7931 | return ret; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7932 | } |
| 7933 | } |
| 7934 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7935 | /* Suspends the decoder at the last checkpoint, and saves any unconsumed |
| 7936 | * bytes in our residual buffer. This is necessary if we need more user |
| 7937 | * bytes to form a complete value, which might not be contiguous in the |
| 7938 | * user's buffers. Always consumes all user bytes. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7939 | static size_t suspend_save(upb_pbdecoder *d) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7940 | /* We hit end-of-buffer before we could parse a full value. |
| 7941 | * Save any unconsumed bytes (if any) to the residual buffer. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7942 | d->pc = d->last; |
| 7943 | |
| 7944 | if (d->checkpoint == d->residual) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7945 | /* Checkpoint was in residual buf; append user byte(s) to residual buf. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7946 | assert((d->residual_end - d->residual) + d->size_param <= |
| 7947 | sizeof(d->residual)); |
| 7948 | if (!in_residual_buf(d, d->ptr)) { |
| 7949 | d->bufstart_ofs -= (d->residual_end - d->residual); |
| 7950 | } |
| 7951 | memcpy(d->residual_end, d->buf_param, d->size_param); |
| 7952 | d->residual_end += d->size_param; |
| 7953 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7954 | /* Checkpoint was in user buf; old residual bytes not needed. */ |
| 7955 | size_t save; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7956 | assert(!in_residual_buf(d, d->checkpoint)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7957 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7958 | d->ptr = d->checkpoint; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7959 | save = curbufleft(d); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7960 | assert(save <= sizeof(d->residual)); |
| 7961 | memcpy(d->residual, d->ptr, save); |
| 7962 | d->residual_end = d->residual + save; |
| 7963 | d->bufstart_ofs = offset(d); |
| 7964 | } |
| 7965 | |
| 7966 | switchtobuf(d, d->residual, d->residual_end); |
| 7967 | return d->size_param; |
| 7968 | } |
| 7969 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7970 | /* Copies the next "bytes" bytes into "buf" and advances the stream. |
| 7971 | * Requires that this many bytes are available in the current buffer. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 7972 | UPB_FORCEINLINE static void consumebytes(upb_pbdecoder *d, void *buf, |
| 7973 | size_t bytes) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7974 | assert(bytes <= curbufleft(d)); |
| 7975 | memcpy(buf, d->ptr, bytes); |
| 7976 | advance(d, bytes); |
| 7977 | } |
| 7978 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 7979 | /* Slow path for getting the next "bytes" bytes, regardless of whether they are |
| 7980 | * available in the current buffer or not. Returns a status code as described |
| 7981 | * in decoder.int.h. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 7982 | UPB_NOINLINE static int32_t getbytes_slow(upb_pbdecoder *d, void *buf, |
| 7983 | size_t bytes) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7984 | const size_t avail = curbufleft(d); |
| 7985 | consumebytes(d, buf, avail); |
| 7986 | bytes -= avail; |
| 7987 | assert(bytes > 0); |
| 7988 | if (in_residual_buf(d, d->ptr)) { |
| 7989 | advancetobuf(d, d->buf_param, d->size_param); |
| 7990 | } |
| 7991 | if (curbufleft(d) >= bytes) { |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 7992 | consumebytes(d, (char *)buf + avail, bytes); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 7993 | return DECODE_OK; |
| 7994 | } else if (d->data_end == d->delim_end) { |
| 7995 | seterr(d, "Submessage ended in the middle of a value or group"); |
| 7996 | return upb_pbdecoder_suspend(d); |
| 7997 | } else { |
| 7998 | return suspend_save(d); |
| 7999 | } |
| 8000 | } |
| 8001 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8002 | /* Gets the next "bytes" bytes, regardless of whether they are available in the |
| 8003 | * current buffer or not. Returns a status code as described in decoder.int.h. |
| 8004 | */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8005 | UPB_FORCEINLINE static int32_t getbytes(upb_pbdecoder *d, void *buf, |
| 8006 | size_t bytes) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8007 | if (curbufleft(d) >= bytes) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8008 | /* Buffer has enough data to satisfy. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8009 | consumebytes(d, buf, bytes); |
| 8010 | return DECODE_OK; |
| 8011 | } else { |
| 8012 | return getbytes_slow(d, buf, bytes); |
| 8013 | } |
| 8014 | } |
| 8015 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8016 | UPB_NOINLINE static size_t peekbytes_slow(upb_pbdecoder *d, void *buf, |
| 8017 | size_t bytes) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8018 | size_t ret = curbufleft(d); |
| 8019 | memcpy(buf, d->ptr, ret); |
| 8020 | if (in_residual_buf(d, d->ptr)) { |
| 8021 | size_t copy = UPB_MIN(bytes - ret, d->size_param); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8022 | memcpy((char *)buf + ret, d->buf_param, copy); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8023 | ret += copy; |
| 8024 | } |
| 8025 | return ret; |
| 8026 | } |
| 8027 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8028 | UPB_FORCEINLINE static size_t peekbytes(upb_pbdecoder *d, void *buf, |
| 8029 | size_t bytes) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8030 | if (curbufleft(d) >= bytes) { |
| 8031 | memcpy(buf, d->ptr, bytes); |
| 8032 | return bytes; |
| 8033 | } else { |
| 8034 | return peekbytes_slow(d, buf, bytes); |
| 8035 | } |
| 8036 | } |
| 8037 | |
| 8038 | |
| 8039 | /* Decoding of wire types *****************************************************/ |
| 8040 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8041 | /* Slow path for decoding a varint from the current buffer position. |
| 8042 | * Returns a status code as described in decoder.int.h. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8043 | UPB_NOINLINE int32_t upb_pbdecoder_decode_varint_slow(upb_pbdecoder *d, |
| 8044 | uint64_t *u64) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8045 | uint8_t byte = 0x80; |
| 8046 | int bitpos; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8047 | *u64 = 0; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8048 | for(bitpos = 0; bitpos < 70 && (byte & 0x80); bitpos += 7) { |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 8049 | CHECK_RETURN(getbytes(d, &byte, 1)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8050 | *u64 |= (uint64_t)(byte & 0x7F) << bitpos; |
| 8051 | } |
| 8052 | if(bitpos == 70 && (byte & 0x80)) { |
| 8053 | seterr(d, kUnterminatedVarint); |
| 8054 | return upb_pbdecoder_suspend(d); |
| 8055 | } |
| 8056 | return DECODE_OK; |
| 8057 | } |
| 8058 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8059 | /* Decodes a varint from the current buffer position. |
| 8060 | * Returns a status code as described in decoder.int.h. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8061 | UPB_FORCEINLINE static int32_t decode_varint(upb_pbdecoder *d, uint64_t *u64) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8062 | if (curbufleft(d) > 0 && !(*d->ptr & 0x80)) { |
| 8063 | *u64 = *d->ptr; |
| 8064 | advance(d, 1); |
| 8065 | return DECODE_OK; |
| 8066 | } else if (curbufleft(d) >= 10) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8067 | /* Fast case. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8068 | upb_decoderet r = upb_vdecode_fast(d->ptr); |
| 8069 | if (r.p == NULL) { |
| 8070 | seterr(d, kUnterminatedVarint); |
| 8071 | return upb_pbdecoder_suspend(d); |
| 8072 | } |
| 8073 | advance(d, r.p - d->ptr); |
| 8074 | *u64 = r.val; |
| 8075 | return DECODE_OK; |
| 8076 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8077 | /* Slow case -- varint spans buffer seam. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8078 | return upb_pbdecoder_decode_varint_slow(d, u64); |
| 8079 | } |
| 8080 | } |
| 8081 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8082 | /* Decodes a 32-bit varint from the current buffer position. |
| 8083 | * Returns a status code as described in decoder.int.h. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8084 | UPB_FORCEINLINE static int32_t decode_v32(upb_pbdecoder *d, uint32_t *u32) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8085 | uint64_t u64; |
| 8086 | int32_t ret = decode_varint(d, &u64); |
| 8087 | if (ret >= 0) return ret; |
| 8088 | if (u64 > UINT32_MAX) { |
| 8089 | seterr(d, "Unterminated 32-bit varint"); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8090 | /* TODO(haberman) guarantee that this function return is >= 0 somehow, |
| 8091 | * so we know this path will always be treated as error by our caller. |
| 8092 | * Right now the size_t -> int32_t can overflow and produce negative values. |
| 8093 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8094 | *u32 = 0; |
| 8095 | return upb_pbdecoder_suspend(d); |
| 8096 | } |
| 8097 | *u32 = u64; |
| 8098 | return DECODE_OK; |
| 8099 | } |
| 8100 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8101 | /* Decodes a fixed32 from the current buffer position. |
| 8102 | * Returns a status code as described in decoder.int.h. |
| 8103 | * TODO: proper byte swapping for big-endian machines. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8104 | UPB_FORCEINLINE static int32_t decode_fixed32(upb_pbdecoder *d, uint32_t *u32) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8105 | return getbytes(d, u32, 4); |
| 8106 | } |
| 8107 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8108 | /* Decodes a fixed64 from the current buffer position. |
| 8109 | * Returns a status code as described in decoder.int.h. |
| 8110 | * TODO: proper byte swapping for big-endian machines. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8111 | UPB_FORCEINLINE static int32_t decode_fixed64(upb_pbdecoder *d, uint64_t *u64) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8112 | return getbytes(d, u64, 8); |
| 8113 | } |
| 8114 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8115 | /* Non-static versions of the above functions. |
| 8116 | * These are called by the JIT for fallback paths. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8117 | int32_t upb_pbdecoder_decode_f32(upb_pbdecoder *d, uint32_t *u32) { |
| 8118 | return decode_fixed32(d, u32); |
| 8119 | } |
| 8120 | |
| 8121 | int32_t upb_pbdecoder_decode_f64(upb_pbdecoder *d, uint64_t *u64) { |
| 8122 | return decode_fixed64(d, u64); |
| 8123 | } |
| 8124 | |
| 8125 | static double as_double(uint64_t n) { double d; memcpy(&d, &n, 8); return d; } |
| 8126 | static float as_float(uint32_t n) { float f; memcpy(&f, &n, 4); return f; } |
| 8127 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8128 | /* Pushes a frame onto the decoder stack. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8129 | static bool decoder_push(upb_pbdecoder *d, uint64_t end) { |
| 8130 | upb_pbdecoder_frame *fr = d->top; |
| 8131 | |
| 8132 | if (end > fr->end_ofs) { |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8133 | seterr(d, kPbDecoderSubmessageTooLong); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8134 | return false; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8135 | } else if (fr == d->limit) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8136 | seterr(d, kPbDecoderStackOverflow); |
| 8137 | return false; |
| 8138 | } |
| 8139 | |
| 8140 | fr++; |
| 8141 | fr->end_ofs = end; |
| 8142 | fr->dispatch = NULL; |
| 8143 | fr->groupnum = 0; |
| 8144 | d->top = fr; |
| 8145 | return true; |
| 8146 | } |
| 8147 | |
| 8148 | static bool pushtagdelim(upb_pbdecoder *d, uint32_t arg) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8149 | /* While we expect to see an "end" tag (either ENDGROUP or a non-sequence |
| 8150 | * field number) prior to hitting any enclosing submessage end, pushing our |
| 8151 | * existing delim end prevents us from continuing to parse values from a |
| 8152 | * corrupt proto that doesn't give us an END tag in time. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8153 | if (!decoder_push(d, d->top->end_ofs)) |
| 8154 | return false; |
| 8155 | d->top->groupnum = arg; |
| 8156 | return true; |
| 8157 | } |
| 8158 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8159 | /* Pops a frame from the decoder stack. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8160 | static void decoder_pop(upb_pbdecoder *d) { d->top--; } |
| 8161 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8162 | UPB_NOINLINE int32_t upb_pbdecoder_checktag_slow(upb_pbdecoder *d, |
| 8163 | uint64_t expected) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8164 | uint64_t data = 0; |
| 8165 | size_t bytes = upb_value_size(expected); |
| 8166 | size_t read = peekbytes(d, &data, bytes); |
| 8167 | if (read == bytes && data == expected) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8168 | /* Advance past matched bytes. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8169 | int32_t ok = getbytes(d, &data, read); |
| 8170 | UPB_ASSERT_VAR(ok, ok < 0); |
| 8171 | return DECODE_OK; |
| 8172 | } else if (read < bytes && memcmp(&data, &expected, read) == 0) { |
| 8173 | return suspend_save(d); |
| 8174 | } else { |
| 8175 | return DECODE_MISMATCH; |
| 8176 | } |
| 8177 | } |
| 8178 | |
| 8179 | int32_t upb_pbdecoder_skipunknown(upb_pbdecoder *d, int32_t fieldnum, |
| 8180 | uint8_t wire_type) { |
| 8181 | if (fieldnum >= 0) |
| 8182 | goto have_tag; |
| 8183 | |
| 8184 | while (true) { |
| 8185 | uint32_t tag; |
| 8186 | CHECK_RETURN(decode_v32(d, &tag)); |
| 8187 | wire_type = tag & 0x7; |
| 8188 | fieldnum = tag >> 3; |
| 8189 | |
| 8190 | have_tag: |
| 8191 | if (fieldnum == 0) { |
| 8192 | seterr(d, "Saw invalid field number (0)"); |
| 8193 | return upb_pbdecoder_suspend(d); |
| 8194 | } |
| 8195 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8196 | /* TODO: deliver to unknown field callback. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8197 | switch (wire_type) { |
| 8198 | case UPB_WIRE_TYPE_32BIT: |
| 8199 | CHECK_RETURN(skip(d, 4)); |
| 8200 | break; |
| 8201 | case UPB_WIRE_TYPE_64BIT: |
| 8202 | CHECK_RETURN(skip(d, 8)); |
| 8203 | break; |
| 8204 | case UPB_WIRE_TYPE_VARINT: { |
| 8205 | uint64_t u64; |
| 8206 | CHECK_RETURN(decode_varint(d, &u64)); |
| 8207 | break; |
| 8208 | } |
| 8209 | case UPB_WIRE_TYPE_DELIMITED: { |
| 8210 | uint32_t len; |
| 8211 | CHECK_RETURN(decode_v32(d, &len)); |
| 8212 | CHECK_RETURN(skip(d, len)); |
| 8213 | break; |
| 8214 | } |
| 8215 | case UPB_WIRE_TYPE_START_GROUP: |
| 8216 | CHECK_SUSPEND(pushtagdelim(d, -fieldnum)); |
| 8217 | break; |
| 8218 | case UPB_WIRE_TYPE_END_GROUP: |
| 8219 | if (fieldnum == -d->top->groupnum) { |
| 8220 | decoder_pop(d); |
| 8221 | } else if (fieldnum == d->top->groupnum) { |
| 8222 | return DECODE_ENDGROUP; |
| 8223 | } else { |
| 8224 | seterr(d, "Unmatched ENDGROUP tag."); |
| 8225 | return upb_pbdecoder_suspend(d); |
| 8226 | } |
| 8227 | break; |
| 8228 | default: |
| 8229 | seterr(d, "Invalid wire type"); |
| 8230 | return upb_pbdecoder_suspend(d); |
| 8231 | } |
| 8232 | |
| 8233 | if (d->top->groupnum >= 0) { |
| 8234 | return DECODE_OK; |
| 8235 | } |
| 8236 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8237 | /* Unknown group -- continue looping over unknown fields. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8238 | checkpoint(d); |
| 8239 | } |
| 8240 | } |
| 8241 | |
| 8242 | static void goto_endmsg(upb_pbdecoder *d) { |
| 8243 | upb_value v; |
| 8244 | bool found = upb_inttable_lookup32(d->top->dispatch, DISPATCH_ENDMSG, &v); |
| 8245 | UPB_ASSERT_VAR(found, found); |
| 8246 | d->pc = d->top->base + upb_value_getuint64(v); |
| 8247 | } |
| 8248 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8249 | /* Parses a tag and jumps to the corresponding bytecode instruction for this |
| 8250 | * field. |
| 8251 | * |
| 8252 | * If the tag is unknown (or the wire type doesn't match), parses the field as |
| 8253 | * unknown. If the tag is a valid ENDGROUP tag, jumps to the bytecode |
| 8254 | * instruction for the end of message. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8255 | static int32_t dispatch(upb_pbdecoder *d) { |
| 8256 | upb_inttable *dispatch = d->top->dispatch; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8257 | uint32_t tag; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8258 | uint8_t wire_type; |
| 8259 | uint32_t fieldnum; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8260 | upb_value val; |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8261 | int32_t retval; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8262 | |
| 8263 | /* Decode tag. */ |
| 8264 | CHECK_RETURN(decode_v32(d, &tag)); |
| 8265 | wire_type = tag & 0x7; |
| 8266 | fieldnum = tag >> 3; |
| 8267 | |
| 8268 | /* Lookup tag. Because of packed/non-packed compatibility, we have to |
| 8269 | * check the wire type against two possibilities. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8270 | if (fieldnum != DISPATCH_ENDMSG && |
| 8271 | upb_inttable_lookup32(dispatch, fieldnum, &val)) { |
| 8272 | uint64_t v = upb_value_getuint64(val); |
| 8273 | if (wire_type == (v & 0xff)) { |
| 8274 | d->pc = d->top->base + (v >> 16); |
| 8275 | return DECODE_OK; |
| 8276 | } else if (wire_type == ((v >> 8) & 0xff)) { |
| 8277 | bool found = |
| 8278 | upb_inttable_lookup(dispatch, fieldnum + UPB_MAX_FIELDNUMBER, &val); |
| 8279 | UPB_ASSERT_VAR(found, found); |
| 8280 | d->pc = d->top->base + upb_value_getuint64(val); |
| 8281 | return DECODE_OK; |
| 8282 | } |
| 8283 | } |
| 8284 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8285 | /* We have some unknown fields (or ENDGROUP) to parse. The DISPATCH or TAG |
| 8286 | * bytecode that triggered this is preceded by a CHECKDELIM bytecode which |
| 8287 | * we need to back up to, so that when we're done skipping unknown data we |
| 8288 | * can re-check the delimited end. */ |
| 8289 | d->last--; /* Necessary if we get suspended */ |
| 8290 | d->pc = d->last; |
| 8291 | assert(getop(*d->last) == OP_CHECKDELIM); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8292 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8293 | /* Unknown field or ENDGROUP. */ |
| 8294 | retval = upb_pbdecoder_skipunknown(d, fieldnum, wire_type); |
| 8295 | |
| 8296 | CHECK_RETURN(retval); |
| 8297 | |
| 8298 | if (retval == DECODE_ENDGROUP) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8299 | goto_endmsg(d); |
| 8300 | return DECODE_OK; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8301 | } |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8302 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8303 | return DECODE_OK; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8304 | } |
| 8305 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8306 | /* Callers know that the stack is more than one deep because the opcodes that |
| 8307 | * call this only occur after PUSH operations. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8308 | upb_pbdecoder_frame *outer_frame(upb_pbdecoder *d) { |
| 8309 | assert(d->top != d->stack); |
| 8310 | return d->top - 1; |
| 8311 | } |
| 8312 | |
| 8313 | |
| 8314 | /* The main decoding loop *****************************************************/ |
| 8315 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8316 | /* The main decoder VM function. Uses traditional bytecode dispatch loop with a |
| 8317 | * switch() statement. */ |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8318 | size_t run_decoder_vm(upb_pbdecoder *d, const mgroup *group, |
| 8319 | const upb_bufhandle* handle) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8320 | |
| 8321 | #define VMCASE(op, code) \ |
| 8322 | case op: { code; if (consumes_input(op)) checkpoint(d); break; } |
| 8323 | #define PRIMITIVE_OP(type, wt, name, convfunc, ctype) \ |
| 8324 | VMCASE(OP_PARSE_ ## type, { \ |
| 8325 | ctype val; \ |
| 8326 | CHECK_RETURN(decode_ ## wt(d, &val)); \ |
| 8327 | upb_sink_put ## name(&d->top->sink, arg, (convfunc)(val)); \ |
| 8328 | }) |
| 8329 | |
| 8330 | while(1) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8331 | int32_t instruction; |
| 8332 | opcode op; |
| 8333 | uint32_t arg; |
| 8334 | int32_t longofs; |
| 8335 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8336 | d->last = d->pc; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8337 | instruction = *d->pc++; |
| 8338 | op = getop(instruction); |
| 8339 | arg = instruction >> 8; |
| 8340 | longofs = arg; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8341 | assert(d->ptr != d->residual_end); |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8342 | UPB_UNUSED(group); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8343 | #ifdef UPB_DUMP_BYTECODE |
| 8344 | fprintf(stderr, "s_ofs=%d buf_ofs=%d data_rem=%d buf_rem=%d delim_rem=%d " |
| 8345 | "%x %s (%d)\n", |
| 8346 | (int)offset(d), |
| 8347 | (int)(d->ptr - d->buf), |
| 8348 | (int)(d->data_end - d->ptr), |
| 8349 | (int)(d->end - d->ptr), |
| 8350 | (int)((d->top->end_ofs - d->bufstart_ofs) - (d->ptr - d->buf)), |
| 8351 | (int)(d->pc - 1 - group->bytecode), |
| 8352 | upb_pbdecoder_getopname(op), |
| 8353 | arg); |
| 8354 | #endif |
| 8355 | switch (op) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8356 | /* Technically, we are losing data if we see a 32-bit varint that is not |
| 8357 | * properly sign-extended. We could detect this and error about the data |
| 8358 | * loss, but proto2 does not do this, so we pass. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8359 | PRIMITIVE_OP(INT32, varint, int32, int32_t, uint64_t) |
| 8360 | PRIMITIVE_OP(INT64, varint, int64, int64_t, uint64_t) |
| 8361 | PRIMITIVE_OP(UINT32, varint, uint32, uint32_t, uint64_t) |
| 8362 | PRIMITIVE_OP(UINT64, varint, uint64, uint64_t, uint64_t) |
| 8363 | PRIMITIVE_OP(FIXED32, fixed32, uint32, uint32_t, uint32_t) |
| 8364 | PRIMITIVE_OP(FIXED64, fixed64, uint64, uint64_t, uint64_t) |
| 8365 | PRIMITIVE_OP(SFIXED32, fixed32, int32, int32_t, uint32_t) |
| 8366 | PRIMITIVE_OP(SFIXED64, fixed64, int64, int64_t, uint64_t) |
| 8367 | PRIMITIVE_OP(BOOL, varint, bool, bool, uint64_t) |
| 8368 | PRIMITIVE_OP(DOUBLE, fixed64, double, as_double, uint64_t) |
| 8369 | PRIMITIVE_OP(FLOAT, fixed32, float, as_float, uint32_t) |
| 8370 | PRIMITIVE_OP(SINT32, varint, int32, upb_zzdec_32, uint64_t) |
| 8371 | PRIMITIVE_OP(SINT64, varint, int64, upb_zzdec_64, uint64_t) |
| 8372 | |
| 8373 | VMCASE(OP_SETDISPATCH, |
| 8374 | d->top->base = d->pc - 1; |
| 8375 | memcpy(&d->top->dispatch, d->pc, sizeof(void*)); |
| 8376 | d->pc += sizeof(void*) / sizeof(uint32_t); |
| 8377 | ) |
| 8378 | VMCASE(OP_STARTMSG, |
| 8379 | CHECK_SUSPEND(upb_sink_startmsg(&d->top->sink)); |
| 8380 | ) |
| 8381 | VMCASE(OP_ENDMSG, |
| 8382 | CHECK_SUSPEND(upb_sink_endmsg(&d->top->sink, d->status)); |
| 8383 | ) |
| 8384 | VMCASE(OP_STARTSEQ, |
| 8385 | upb_pbdecoder_frame *outer = outer_frame(d); |
| 8386 | CHECK_SUSPEND(upb_sink_startseq(&outer->sink, arg, &d->top->sink)); |
| 8387 | ) |
| 8388 | VMCASE(OP_ENDSEQ, |
| 8389 | CHECK_SUSPEND(upb_sink_endseq(&d->top->sink, arg)); |
| 8390 | ) |
| 8391 | VMCASE(OP_STARTSUBMSG, |
| 8392 | upb_pbdecoder_frame *outer = outer_frame(d); |
| 8393 | CHECK_SUSPEND(upb_sink_startsubmsg(&outer->sink, arg, &d->top->sink)); |
| 8394 | ) |
| 8395 | VMCASE(OP_ENDSUBMSG, |
| 8396 | CHECK_SUSPEND(upb_sink_endsubmsg(&d->top->sink, arg)); |
| 8397 | ) |
| 8398 | VMCASE(OP_STARTSTR, |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8399 | uint32_t len = delim_remaining(d); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8400 | upb_pbdecoder_frame *outer = outer_frame(d); |
| 8401 | CHECK_SUSPEND(upb_sink_startstr(&outer->sink, arg, len, &d->top->sink)); |
| 8402 | if (len == 0) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8403 | d->pc++; /* Skip OP_STRING. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8404 | } |
| 8405 | ) |
| 8406 | VMCASE(OP_STRING, |
| 8407 | uint32_t len = curbufleft(d); |
| 8408 | size_t n = upb_sink_putstring(&d->top->sink, arg, d->ptr, len, handle); |
| 8409 | if (n > len) { |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8410 | if (n > delim_remaining(d)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8411 | seterr(d, "Tried to skip past end of string."); |
| 8412 | return upb_pbdecoder_suspend(d); |
| 8413 | } else { |
| 8414 | int32_t ret = skip(d, n); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8415 | /* This shouldn't return DECODE_OK, because n > len. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8416 | assert(ret >= 0); |
| 8417 | return ret; |
| 8418 | } |
| 8419 | } |
| 8420 | advance(d, n); |
| 8421 | if (n < len || d->delim_end == NULL) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8422 | /* We aren't finished with this string yet. */ |
| 8423 | d->pc--; /* Repeat OP_STRING. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8424 | if (n > 0) checkpoint(d); |
| 8425 | return upb_pbdecoder_suspend(d); |
| 8426 | } |
| 8427 | ) |
| 8428 | VMCASE(OP_ENDSTR, |
| 8429 | CHECK_SUSPEND(upb_sink_endstr(&d->top->sink, arg)); |
| 8430 | ) |
| 8431 | VMCASE(OP_PUSHTAGDELIM, |
| 8432 | CHECK_SUSPEND(pushtagdelim(d, arg)); |
| 8433 | ) |
| 8434 | VMCASE(OP_SETBIGGROUPNUM, |
| 8435 | d->top->groupnum = *d->pc++; |
| 8436 | ) |
| 8437 | VMCASE(OP_POP, |
| 8438 | assert(d->top > d->stack); |
| 8439 | decoder_pop(d); |
| 8440 | ) |
| 8441 | VMCASE(OP_PUSHLENDELIM, |
| 8442 | uint32_t len; |
| 8443 | CHECK_RETURN(decode_v32(d, &len)); |
| 8444 | CHECK_SUSPEND(decoder_push(d, offset(d) + len)); |
| 8445 | set_delim_end(d); |
| 8446 | ) |
| 8447 | VMCASE(OP_SETDELIM, |
| 8448 | set_delim_end(d); |
| 8449 | ) |
| 8450 | VMCASE(OP_CHECKDELIM, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8451 | /* We are guaranteed of this assert because we never allow ourselves to |
| 8452 | * consume bytes beyond data_end, which covers delim_end when non-NULL. |
| 8453 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8454 | assert(!(d->delim_end && d->ptr > d->delim_end)); |
| 8455 | if (d->ptr == d->delim_end) |
| 8456 | d->pc += longofs; |
| 8457 | ) |
| 8458 | VMCASE(OP_CALL, |
| 8459 | d->callstack[d->call_len++] = d->pc; |
| 8460 | d->pc += longofs; |
| 8461 | ) |
| 8462 | VMCASE(OP_RET, |
| 8463 | assert(d->call_len > 0); |
| 8464 | d->pc = d->callstack[--d->call_len]; |
| 8465 | ) |
| 8466 | VMCASE(OP_BRANCH, |
| 8467 | d->pc += longofs; |
| 8468 | ) |
| 8469 | VMCASE(OP_TAG1, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8470 | uint8_t expected; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8471 | CHECK_SUSPEND(curbufleft(d) > 0); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8472 | expected = (arg >> 8) & 0xff; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8473 | if (*d->ptr == expected) { |
| 8474 | advance(d, 1); |
| 8475 | } else { |
| 8476 | int8_t shortofs; |
| 8477 | badtag: |
| 8478 | shortofs = arg; |
| 8479 | if (shortofs == LABEL_DISPATCH) { |
| 8480 | CHECK_RETURN(dispatch(d)); |
| 8481 | } else { |
| 8482 | d->pc += shortofs; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8483 | break; /* Avoid checkpoint(). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8484 | } |
| 8485 | } |
| 8486 | ) |
| 8487 | VMCASE(OP_TAG2, |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8488 | uint16_t expected; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8489 | CHECK_SUSPEND(curbufleft(d) > 0); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8490 | expected = (arg >> 8) & 0xffff; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8491 | if (curbufleft(d) >= 2) { |
| 8492 | uint16_t actual; |
| 8493 | memcpy(&actual, d->ptr, 2); |
| 8494 | if (expected == actual) { |
| 8495 | advance(d, 2); |
| 8496 | } else { |
| 8497 | goto badtag; |
| 8498 | } |
| 8499 | } else { |
| 8500 | int32_t result = upb_pbdecoder_checktag_slow(d, expected); |
| 8501 | if (result == DECODE_MISMATCH) goto badtag; |
| 8502 | if (result >= 0) return result; |
| 8503 | } |
| 8504 | ) |
| 8505 | VMCASE(OP_TAGN, { |
| 8506 | uint64_t expected; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8507 | int32_t result; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8508 | memcpy(&expected, d->pc, 8); |
| 8509 | d->pc += 2; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8510 | result = upb_pbdecoder_checktag_slow(d, expected); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8511 | if (result == DECODE_MISMATCH) goto badtag; |
| 8512 | if (result >= 0) return result; |
| 8513 | }) |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 8514 | VMCASE(OP_DISPATCH, { |
| 8515 | CHECK_RETURN(dispatch(d)); |
| 8516 | }) |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8517 | VMCASE(OP_HALT, { |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8518 | return d->size_param; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8519 | }) |
| 8520 | } |
| 8521 | } |
| 8522 | } |
| 8523 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8524 | |
| 8525 | /* BytesHandler handlers ******************************************************/ |
| 8526 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8527 | void *upb_pbdecoder_startbc(void *closure, const void *pc, size_t size_hint) { |
| 8528 | upb_pbdecoder *d = closure; |
| 8529 | UPB_UNUSED(size_hint); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8530 | d->top->end_ofs = UINT64_MAX; |
| 8531 | d->bufstart_ofs = 0; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8532 | d->call_len = 1; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8533 | d->callstack[0] = &halt; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8534 | d->pc = pc; |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8535 | d->skip = 0; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8536 | return d; |
| 8537 | } |
| 8538 | |
| 8539 | void *upb_pbdecoder_startjit(void *closure, const void *hd, size_t size_hint) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8540 | upb_pbdecoder *d = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8541 | UPB_UNUSED(hd); |
| 8542 | UPB_UNUSED(size_hint); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8543 | d->top->end_ofs = UINT64_MAX; |
| 8544 | d->bufstart_ofs = 0; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8545 | d->call_len = 0; |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8546 | d->skip = 0; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8547 | return d; |
| 8548 | } |
| 8549 | |
| 8550 | bool upb_pbdecoder_end(void *closure, const void *handler_data) { |
| 8551 | upb_pbdecoder *d = closure; |
| 8552 | const upb_pbdecodermethod *method = handler_data; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8553 | uint64_t end; |
| 8554 | char dummy; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8555 | |
| 8556 | if (d->residual_end > d->residual) { |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8557 | seterr(d, "Unexpected EOF: decoder still has buffered unparsed data"); |
| 8558 | return false; |
| 8559 | } |
| 8560 | |
| 8561 | if (d->skip) { |
| 8562 | seterr(d, "Unexpected EOF inside skipped data"); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8563 | return false; |
| 8564 | } |
| 8565 | |
| 8566 | if (d->top->end_ofs != UINT64_MAX) { |
| 8567 | seterr(d, "Unexpected EOF inside delimited string"); |
| 8568 | return false; |
| 8569 | } |
| 8570 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8571 | /* The user's end() call indicates that the message ends here. */ |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8572 | end = offset(d); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8573 | d->top->end_ofs = end; |
| 8574 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8575 | #ifdef UPB_USE_JIT_X64 |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8576 | if (method->is_native_) { |
| 8577 | const mgroup *group = (const mgroup*)method->group; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8578 | if (d->top != d->stack) |
| 8579 | d->stack->end_ofs = 0; |
| 8580 | group->jit_code(closure, method->code_base.ptr, &dummy, 0, NULL); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8581 | } else |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8582 | #endif |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8583 | { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8584 | const uint32_t *p = d->pc; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8585 | d->stack->end_ofs = end; |
| 8586 | /* Check the previous bytecode, but guard against beginning. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8587 | if (p != method->code_base.ptr) p--; |
| 8588 | if (getop(*p) == OP_CHECKDELIM) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8589 | /* Rewind from OP_TAG* to OP_CHECKDELIM. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8590 | assert(getop(*d->pc) == OP_TAG1 || |
| 8591 | getop(*d->pc) == OP_TAG2 || |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 8592 | getop(*d->pc) == OP_TAGN || |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8593 | getop(*d->pc) == OP_DISPATCH); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8594 | d->pc = p; |
| 8595 | } |
| 8596 | upb_pbdecoder_decode(closure, handler_data, &dummy, 0, NULL); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8597 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8598 | |
| 8599 | if (d->call_len != 0) { |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8600 | seterr(d, "Unexpected EOF inside submessage or group"); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8601 | return false; |
| 8602 | } |
| 8603 | |
| 8604 | return true; |
| 8605 | } |
| 8606 | |
Josh Haberman | 5bdf4a4 | 2015-08-03 15:51:31 -0700 | [diff] [blame] | 8607 | size_t upb_pbdecoder_decode(void *decoder, const void *group, const char *buf, |
| 8608 | size_t size, const upb_bufhandle *handle) { |
| 8609 | int32_t result = upb_pbdecoder_resume(decoder, NULL, buf, size, handle); |
| 8610 | |
| 8611 | if (result == DECODE_ENDGROUP) goto_endmsg(decoder); |
| 8612 | CHECK_RETURN(result); |
| 8613 | |
| 8614 | return run_decoder_vm(decoder, group, handle); |
| 8615 | } |
| 8616 | |
| 8617 | |
| 8618 | /* Public API *****************************************************************/ |
| 8619 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8620 | void upb_pbdecoder_reset(upb_pbdecoder *d) { |
| 8621 | d->top = d->stack; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8622 | d->top->groupnum = 0; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8623 | d->ptr = d->residual; |
| 8624 | d->buf = d->residual; |
| 8625 | d->end = d->residual; |
| 8626 | d->residual_end = d->residual; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8627 | } |
| 8628 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8629 | upb_pbdecoder *upb_pbdecoder_create(upb_env *e, const upb_pbdecodermethod *m, |
| 8630 | upb_sink *sink) { |
| 8631 | const size_t default_max_nesting = 64; |
| 8632 | #ifndef NDEBUG |
| 8633 | size_t size_before = upb_env_bytesallocated(e); |
| 8634 | #endif |
| 8635 | |
| 8636 | upb_pbdecoder *d = upb_env_malloc(e, sizeof(upb_pbdecoder)); |
| 8637 | if (!d) return NULL; |
| 8638 | |
| 8639 | d->method_ = m; |
| 8640 | d->callstack = upb_env_malloc(e, callstacksize(d, default_max_nesting)); |
| 8641 | d->stack = upb_env_malloc(e, stacksize(d, default_max_nesting)); |
| 8642 | if (!d->stack || !d->callstack) { |
| 8643 | return NULL; |
| 8644 | } |
| 8645 | |
| 8646 | d->env = e; |
| 8647 | d->limit = d->stack + default_max_nesting - 1; |
| 8648 | d->stack_size = default_max_nesting; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 8649 | d->status = NULL; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8650 | |
| 8651 | upb_pbdecoder_reset(d); |
| 8652 | upb_bytessink_reset(&d->input_, &m->input_handler_, d); |
| 8653 | |
| 8654 | assert(sink); |
| 8655 | if (d->method_->dest_handlers_) { |
| 8656 | if (sink->handlers != d->method_->dest_handlers_) |
| 8657 | return NULL; |
| 8658 | } |
| 8659 | upb_sink_reset(&d->top->sink, sink->handlers, sink->closure); |
| 8660 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8661 | /* If this fails, increase the value in decoder.h. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8662 | assert(upb_env_bytesallocated(e) - size_before <= UPB_PB_DECODER_SIZE); |
| 8663 | return d; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8664 | } |
| 8665 | |
| 8666 | uint64_t upb_pbdecoder_bytesparsed(const upb_pbdecoder *d) { |
| 8667 | return offset(d); |
| 8668 | } |
| 8669 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8670 | const upb_pbdecodermethod *upb_pbdecoder_method(const upb_pbdecoder *d) { |
| 8671 | return d->method_; |
| 8672 | } |
| 8673 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8674 | upb_bytessink *upb_pbdecoder_input(upb_pbdecoder *d) { |
| 8675 | return &d->input_; |
| 8676 | } |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8677 | |
| 8678 | size_t upb_pbdecoder_maxnesting(const upb_pbdecoder *d) { |
| 8679 | return d->stack_size; |
| 8680 | } |
| 8681 | |
| 8682 | bool upb_pbdecoder_setmaxnesting(upb_pbdecoder *d, size_t max) { |
| 8683 | assert(d->top >= d->stack); |
| 8684 | |
| 8685 | if (max < (size_t)(d->top - d->stack)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8686 | /* Can't set a limit smaller than what we are currently at. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8687 | return false; |
| 8688 | } |
| 8689 | |
| 8690 | if (max > d->stack_size) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8691 | /* Need to reallocate stack and callstack to accommodate. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8692 | size_t old_size = stacksize(d, d->stack_size); |
| 8693 | size_t new_size = stacksize(d, max); |
| 8694 | void *p = upb_env_realloc(d->env, d->stack, old_size, new_size); |
| 8695 | if (!p) { |
| 8696 | return false; |
| 8697 | } |
| 8698 | d->stack = p; |
| 8699 | |
| 8700 | old_size = callstacksize(d, d->stack_size); |
| 8701 | new_size = callstacksize(d, max); |
| 8702 | p = upb_env_realloc(d->env, d->callstack, old_size, new_size); |
| 8703 | if (!p) { |
| 8704 | return false; |
| 8705 | } |
| 8706 | d->callstack = p; |
| 8707 | |
| 8708 | d->stack_size = max; |
| 8709 | } |
| 8710 | |
| 8711 | d->limit = d->stack + max - 1; |
| 8712 | return true; |
| 8713 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8714 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 8715 | ** upb::Encoder |
| 8716 | ** |
| 8717 | ** Since we are implementing pure handlers (ie. without any out-of-band access |
| 8718 | ** to pre-computed lengths), we have to buffer all submessages before we can |
| 8719 | ** emit even their first byte. |
| 8720 | ** |
| 8721 | ** Not knowing the size of submessages also means we can't write a perfect |
| 8722 | ** zero-copy implementation, even with buffering. Lengths are stored as |
| 8723 | ** varints, which means that we don't know how many bytes to reserve for the |
| 8724 | ** length until we know what the length is. |
| 8725 | ** |
| 8726 | ** This leaves us with three main choices: |
| 8727 | ** |
| 8728 | ** 1. buffer all submessage data in a temporary buffer, then copy it exactly |
| 8729 | ** once into the output buffer. |
| 8730 | ** |
| 8731 | ** 2. attempt to buffer data directly into the output buffer, estimating how |
| 8732 | ** many bytes each length will take. When our guesses are wrong, use |
| 8733 | ** memmove() to grow or shrink the allotted space. |
| 8734 | ** |
| 8735 | ** 3. buffer directly into the output buffer, allocating a max length |
| 8736 | ** ahead-of-time for each submessage length. If we overallocated, we waste |
| 8737 | ** space, but no memcpy() or memmove() is required. This approach requires |
| 8738 | ** defining a maximum size for submessages and rejecting submessages that |
| 8739 | ** exceed that size. |
| 8740 | ** |
| 8741 | ** (2) and (3) have the potential to have better performance, but they are more |
| 8742 | ** complicated and subtle to implement: |
| 8743 | ** |
| 8744 | ** (3) requires making an arbitrary choice of the maximum message size; it |
| 8745 | ** wastes space when submessages are shorter than this and fails |
| 8746 | ** completely when they are longer. This makes it more finicky and |
| 8747 | ** requires configuration based on the input. It also makes it impossible |
| 8748 | ** to perfectly match the output of reference encoders that always use the |
| 8749 | ** optimal amount of space for each length. |
| 8750 | ** |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 8751 | ** (2) requires guessing the the size upfront, and if multiple lengths are |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 8752 | ** guessed wrong the minimum required number of memmove() operations may |
| 8753 | ** be complicated to compute correctly. Implemented properly, it may have |
| 8754 | ** a useful amortized or average cost, but more investigation is required |
| 8755 | ** to determine this and what the optimal algorithm is to achieve it. |
| 8756 | ** |
| 8757 | ** (1) makes you always pay for exactly one copy, but its implementation is |
| 8758 | ** the simplest and its performance is predictable. |
| 8759 | ** |
| 8760 | ** So for now, we implement (1) only. If we wish to optimize later, we should |
| 8761 | ** be able to do it without affecting users. |
| 8762 | ** |
| 8763 | ** The strategy is to buffer the segments of data that do *not* depend on |
| 8764 | ** unknown lengths in one buffer, and keep a separate buffer of segment pointers |
| 8765 | ** and lengths. When the top-level submessage ends, we can go beginning to end, |
| 8766 | ** alternating the writing of lengths with memcpy() of the rest of the data. |
| 8767 | ** At the top level though, no buffering is required. |
| 8768 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8769 | |
| 8770 | |
| 8771 | #include <stdlib.h> |
| 8772 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8773 | /* The output buffer is divided into segments; a segment is a string of data |
| 8774 | * that is "ready to go" -- it does not need any varint lengths inserted into |
| 8775 | * the middle. The seams between segments are where varints will be inserted |
| 8776 | * once they are known. |
| 8777 | * |
| 8778 | * We also use the concept of a "run", which is a range of encoded bytes that |
| 8779 | * occur at a single submessage level. Every segment contains one or more runs. |
| 8780 | * |
| 8781 | * A segment can span messages. Consider: |
| 8782 | * |
| 8783 | * .--Submessage lengths---------. |
| 8784 | * | | | |
| 8785 | * | V V |
| 8786 | * V | |--------------- | |----------------- |
| 8787 | * Submessages: | |----------------------------------------------- |
| 8788 | * Top-level msg: ------------------------------------------------------------ |
| 8789 | * |
| 8790 | * Segments: ----- ------------------- ----------------- |
| 8791 | * Runs: *---- *--------------*--- *---------------- |
| 8792 | * (* marks the start) |
| 8793 | * |
| 8794 | * Note that the top-level menssage is not in any segment because it does not |
| 8795 | * have any length preceding it. |
| 8796 | * |
| 8797 | * A segment is only interrupted when another length needs to be inserted. So |
| 8798 | * observe how the second segment spans both the inner submessage and part of |
| 8799 | * the next enclosing message. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8800 | typedef struct { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8801 | uint32_t msglen; /* The length to varint-encode before this segment. */ |
| 8802 | uint32_t seglen; /* Length of the segment. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8803 | } upb_pb_encoder_segment; |
| 8804 | |
| 8805 | struct upb_pb_encoder { |
| 8806 | upb_env *env; |
| 8807 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8808 | /* Our input and output. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8809 | upb_sink input_; |
| 8810 | upb_bytessink *output_; |
| 8811 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8812 | /* The "subclosure" -- used as the inner closure as part of the bytessink |
| 8813 | * protocol. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8814 | void *subc; |
| 8815 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8816 | /* The output buffer and limit, and our current write position. "buf" |
| 8817 | * initially points to "initbuf", but is dynamically allocated if we need to |
| 8818 | * grow beyond the initial size. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8819 | char *buf, *ptr, *limit; |
| 8820 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8821 | /* The beginning of the current run, or undefined if we are at the top |
| 8822 | * level. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8823 | char *runbegin; |
| 8824 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8825 | /* The list of segments we are accumulating. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8826 | upb_pb_encoder_segment *segbuf, *segptr, *seglimit; |
| 8827 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8828 | /* The stack of enclosing submessages. Each entry in the stack points to the |
| 8829 | * segment where this submessage's length is being accumulated. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8830 | int *stack, *top, *stacklimit; |
| 8831 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8832 | /* Depth of startmsg/endmsg calls. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8833 | int depth; |
| 8834 | }; |
| 8835 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8836 | /* low-level buffering ********************************************************/ |
| 8837 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8838 | /* Low-level functions for interacting with the output buffer. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8839 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8840 | /* TODO(haberman): handle pushback */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8841 | static void putbuf(upb_pb_encoder *e, const char *buf, size_t len) { |
| 8842 | size_t n = upb_bytessink_putbuf(e->output_, e->subc, buf, len, NULL); |
| 8843 | UPB_ASSERT_VAR(n, n == len); |
| 8844 | } |
| 8845 | |
| 8846 | static upb_pb_encoder_segment *top(upb_pb_encoder *e) { |
| 8847 | return &e->segbuf[*e->top]; |
| 8848 | } |
| 8849 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8850 | /* Call to ensure that at least "bytes" bytes are available for writing at |
| 8851 | * e->ptr. Returns false if the bytes could not be allocated. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8852 | static bool reserve(upb_pb_encoder *e, size_t bytes) { |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8853 | if ((size_t)(e->limit - e->ptr) < bytes) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8854 | /* Grow buffer. */ |
| 8855 | char *new_buf; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8856 | size_t needed = bytes + (e->ptr - e->buf); |
| 8857 | size_t old_size = e->limit - e->buf; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8858 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8859 | size_t new_size = old_size; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8860 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8861 | while (new_size < needed) { |
| 8862 | new_size *= 2; |
| 8863 | } |
| 8864 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8865 | new_buf = upb_env_realloc(e->env, e->buf, old_size, new_size); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8866 | |
| 8867 | if (new_buf == NULL) { |
| 8868 | return false; |
| 8869 | } |
| 8870 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8871 | e->ptr = new_buf + (e->ptr - e->buf); |
| 8872 | e->runbegin = new_buf + (e->runbegin - e->buf); |
| 8873 | e->limit = new_buf + new_size; |
| 8874 | e->buf = new_buf; |
| 8875 | } |
| 8876 | |
| 8877 | return true; |
| 8878 | } |
| 8879 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8880 | /* Call when "bytes" bytes have been writte at e->ptr. The caller *must* have |
| 8881 | * previously called reserve() with at least this many bytes. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8882 | static void encoder_advance(upb_pb_encoder *e, size_t bytes) { |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8883 | assert((size_t)(e->limit - e->ptr) >= bytes); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8884 | e->ptr += bytes; |
| 8885 | } |
| 8886 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8887 | /* Call when all of the bytes for a handler have been written. Flushes the |
| 8888 | * bytes if possible and necessary, returning false if this failed. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8889 | static bool commit(upb_pb_encoder *e) { |
| 8890 | if (!e->top) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8891 | /* We aren't inside a delimited region. Flush our accumulated bytes to |
| 8892 | * the output. |
| 8893 | * |
| 8894 | * TODO(haberman): in the future we may want to delay flushing for |
| 8895 | * efficiency reasons. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8896 | putbuf(e, e->buf, e->ptr - e->buf); |
| 8897 | e->ptr = e->buf; |
| 8898 | } |
| 8899 | |
| 8900 | return true; |
| 8901 | } |
| 8902 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8903 | /* Writes the given bytes to the buffer, handling reserve/advance. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8904 | static bool encode_bytes(upb_pb_encoder *e, const void *data, size_t len) { |
| 8905 | if (!reserve(e, len)) { |
| 8906 | return false; |
| 8907 | } |
| 8908 | |
| 8909 | memcpy(e->ptr, data, len); |
| 8910 | encoder_advance(e, len); |
| 8911 | return true; |
| 8912 | } |
| 8913 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8914 | /* Finish the current run by adding the run totals to the segment and message |
| 8915 | * length. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8916 | static void accumulate(upb_pb_encoder *e) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8917 | size_t run_len; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8918 | assert(e->ptr >= e->runbegin); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8919 | run_len = e->ptr - e->runbegin; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8920 | e->segptr->seglen += run_len; |
| 8921 | top(e)->msglen += run_len; |
| 8922 | e->runbegin = e->ptr; |
| 8923 | } |
| 8924 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8925 | /* Call to indicate the start of delimited region for which the full length is |
| 8926 | * not yet known. All data will be buffered until the length is known. |
| 8927 | * Delimited regions may be nested; their lengths will all be tracked properly. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8928 | static bool start_delim(upb_pb_encoder *e) { |
| 8929 | if (e->top) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8930 | /* We are already buffering, advance to the next segment and push it on the |
| 8931 | * stack. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8932 | accumulate(e); |
| 8933 | |
| 8934 | if (++e->top == e->stacklimit) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8935 | /* TODO(haberman): grow stack? */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8936 | return false; |
| 8937 | } |
| 8938 | |
| 8939 | if (++e->segptr == e->seglimit) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8940 | /* Grow segment buffer. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8941 | size_t old_size = |
| 8942 | (e->seglimit - e->segbuf) * sizeof(upb_pb_encoder_segment); |
| 8943 | size_t new_size = old_size * 2; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 8944 | upb_pb_encoder_segment *new_buf = |
| 8945 | upb_env_realloc(e->env, e->segbuf, old_size, new_size); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8946 | |
| 8947 | if (new_buf == NULL) { |
| 8948 | return false; |
| 8949 | } |
| 8950 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8951 | e->segptr = new_buf + (e->segptr - e->segbuf); |
| 8952 | e->seglimit = new_buf + (new_size / sizeof(upb_pb_encoder_segment)); |
| 8953 | e->segbuf = new_buf; |
| 8954 | } |
| 8955 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8956 | /* We were previously at the top level, start buffering. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8957 | e->segptr = e->segbuf; |
| 8958 | e->top = e->stack; |
| 8959 | e->runbegin = e->ptr; |
| 8960 | } |
| 8961 | |
| 8962 | *e->top = e->segptr - e->segbuf; |
| 8963 | e->segptr->seglen = 0; |
| 8964 | e->segptr->msglen = 0; |
| 8965 | |
| 8966 | return true; |
| 8967 | } |
| 8968 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8969 | /* Call to indicate the end of a delimited region. We now know the length of |
| 8970 | * the delimited region. If we are not nested inside any other delimited |
| 8971 | * regions, we can now emit all of the buffered data we accumulated. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8972 | static bool end_delim(upb_pb_encoder *e) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8973 | size_t msglen; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8974 | accumulate(e); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8975 | msglen = top(e)->msglen; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8976 | |
| 8977 | if (e->top == e->stack) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8978 | /* All lengths are now available, emit all buffered data. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8979 | char buf[UPB_PB_VARINT_MAX_LEN]; |
| 8980 | upb_pb_encoder_segment *s; |
| 8981 | const char *ptr = e->buf; |
| 8982 | for (s = e->segbuf; s <= e->segptr; s++) { |
| 8983 | size_t lenbytes = upb_vencode64(s->msglen, buf); |
| 8984 | putbuf(e, buf, lenbytes); |
| 8985 | putbuf(e, ptr, s->seglen); |
| 8986 | ptr += s->seglen; |
| 8987 | } |
| 8988 | |
| 8989 | e->ptr = e->buf; |
| 8990 | e->top = NULL; |
| 8991 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 8992 | /* Need to keep buffering; propagate length info into enclosing |
| 8993 | * submessages. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 8994 | --e->top; |
| 8995 | top(e)->msglen += msglen + upb_varint_size(msglen); |
| 8996 | } |
| 8997 | |
| 8998 | return true; |
| 8999 | } |
| 9000 | |
| 9001 | |
| 9002 | /* tag_t **********************************************************************/ |
| 9003 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9004 | /* A precomputed (pre-encoded) tag and length. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9005 | |
| 9006 | typedef struct { |
| 9007 | uint8_t bytes; |
| 9008 | char tag[7]; |
| 9009 | } tag_t; |
| 9010 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9011 | /* Allocates a new tag for this field, and sets it in these handlerattr. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9012 | static void new_tag(upb_handlers *h, const upb_fielddef *f, upb_wiretype_t wt, |
| 9013 | upb_handlerattr *attr) { |
| 9014 | uint32_t n = upb_fielddef_number(f); |
| 9015 | |
| 9016 | tag_t *tag = malloc(sizeof(tag_t)); |
| 9017 | tag->bytes = upb_vencode64((n << 3) | wt, tag->tag); |
| 9018 | |
| 9019 | upb_handlerattr_init(attr); |
| 9020 | upb_handlerattr_sethandlerdata(attr, tag); |
| 9021 | upb_handlers_addcleanup(h, tag, free); |
| 9022 | } |
| 9023 | |
| 9024 | static bool encode_tag(upb_pb_encoder *e, const tag_t *tag) { |
| 9025 | return encode_bytes(e, tag->tag, tag->bytes); |
| 9026 | } |
| 9027 | |
| 9028 | |
| 9029 | /* encoding of wire types *****************************************************/ |
| 9030 | |
| 9031 | static bool encode_fixed64(upb_pb_encoder *e, uint64_t val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9032 | /* TODO(haberman): byte-swap for big endian. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9033 | return encode_bytes(e, &val, sizeof(uint64_t)); |
| 9034 | } |
| 9035 | |
| 9036 | static bool encode_fixed32(upb_pb_encoder *e, uint32_t val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9037 | /* TODO(haberman): byte-swap for big endian. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9038 | return encode_bytes(e, &val, sizeof(uint32_t)); |
| 9039 | } |
| 9040 | |
| 9041 | static bool encode_varint(upb_pb_encoder *e, uint64_t val) { |
| 9042 | if (!reserve(e, UPB_PB_VARINT_MAX_LEN)) { |
| 9043 | return false; |
| 9044 | } |
| 9045 | |
| 9046 | encoder_advance(e, upb_vencode64(val, e->ptr)); |
| 9047 | return true; |
| 9048 | } |
| 9049 | |
| 9050 | static uint64_t dbl2uint64(double d) { |
| 9051 | uint64_t ret; |
| 9052 | memcpy(&ret, &d, sizeof(uint64_t)); |
| 9053 | return ret; |
| 9054 | } |
| 9055 | |
| 9056 | static uint32_t flt2uint32(float d) { |
| 9057 | uint32_t ret; |
| 9058 | memcpy(&ret, &d, sizeof(uint32_t)); |
| 9059 | return ret; |
| 9060 | } |
| 9061 | |
| 9062 | |
| 9063 | /* encoding of proto types ****************************************************/ |
| 9064 | |
| 9065 | static bool startmsg(void *c, const void *hd) { |
| 9066 | upb_pb_encoder *e = c; |
| 9067 | UPB_UNUSED(hd); |
| 9068 | if (e->depth++ == 0) { |
| 9069 | upb_bytessink_start(e->output_, 0, &e->subc); |
| 9070 | } |
| 9071 | return true; |
| 9072 | } |
| 9073 | |
| 9074 | static bool endmsg(void *c, const void *hd, upb_status *status) { |
| 9075 | upb_pb_encoder *e = c; |
| 9076 | UPB_UNUSED(hd); |
| 9077 | UPB_UNUSED(status); |
| 9078 | if (--e->depth == 0) { |
| 9079 | upb_bytessink_end(e->output_); |
| 9080 | } |
| 9081 | return true; |
| 9082 | } |
| 9083 | |
| 9084 | static void *encode_startdelimfield(void *c, const void *hd) { |
| 9085 | bool ok = encode_tag(c, hd) && commit(c) && start_delim(c); |
| 9086 | return ok ? c : UPB_BREAK; |
| 9087 | } |
| 9088 | |
| 9089 | static bool encode_enddelimfield(void *c, const void *hd) { |
| 9090 | UPB_UNUSED(hd); |
| 9091 | return end_delim(c); |
| 9092 | } |
| 9093 | |
| 9094 | static void *encode_startgroup(void *c, const void *hd) { |
| 9095 | return (encode_tag(c, hd) && commit(c)) ? c : UPB_BREAK; |
| 9096 | } |
| 9097 | |
| 9098 | static bool encode_endgroup(void *c, const void *hd) { |
| 9099 | return encode_tag(c, hd) && commit(c); |
| 9100 | } |
| 9101 | |
| 9102 | static void *encode_startstr(void *c, const void *hd, size_t size_hint) { |
| 9103 | UPB_UNUSED(size_hint); |
| 9104 | return encode_startdelimfield(c, hd); |
| 9105 | } |
| 9106 | |
| 9107 | static size_t encode_strbuf(void *c, const void *hd, const char *buf, |
| 9108 | size_t len, const upb_bufhandle *h) { |
| 9109 | UPB_UNUSED(hd); |
| 9110 | UPB_UNUSED(h); |
| 9111 | return encode_bytes(c, buf, len) ? len : 0; |
| 9112 | } |
| 9113 | |
| 9114 | #define T(type, ctype, convert, encode) \ |
| 9115 | static bool encode_scalar_##type(void *e, const void *hd, ctype val) { \ |
| 9116 | return encode_tag(e, hd) && encode(e, (convert)(val)) && commit(e); \ |
| 9117 | } \ |
| 9118 | static bool encode_packed_##type(void *e, const void *hd, ctype val) { \ |
| 9119 | UPB_UNUSED(hd); \ |
| 9120 | return encode(e, (convert)(val)); \ |
| 9121 | } |
| 9122 | |
| 9123 | T(double, double, dbl2uint64, encode_fixed64) |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9124 | T(float, float, flt2uint32, encode_fixed32) |
| 9125 | T(int64, int64_t, uint64_t, encode_varint) |
| 9126 | T(int32, int32_t, uint32_t, encode_varint) |
| 9127 | T(fixed64, uint64_t, uint64_t, encode_fixed64) |
| 9128 | T(fixed32, uint32_t, uint32_t, encode_fixed32) |
| 9129 | T(bool, bool, bool, encode_varint) |
| 9130 | T(uint32, uint32_t, uint32_t, encode_varint) |
| 9131 | T(uint64, uint64_t, uint64_t, encode_varint) |
| 9132 | T(enum, int32_t, uint32_t, encode_varint) |
| 9133 | T(sfixed32, int32_t, uint32_t, encode_fixed32) |
| 9134 | T(sfixed64, int64_t, uint64_t, encode_fixed64) |
| 9135 | T(sint32, int32_t, upb_zzenc_32, encode_varint) |
| 9136 | T(sint64, int64_t, upb_zzenc_64, encode_varint) |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9137 | |
| 9138 | #undef T |
| 9139 | |
| 9140 | |
| 9141 | /* code to build the handlers *************************************************/ |
| 9142 | |
| 9143 | static void newhandlers_callback(const void *closure, upb_handlers *h) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9144 | const upb_msgdef *m; |
| 9145 | upb_msg_field_iter i; |
| 9146 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9147 | UPB_UNUSED(closure); |
| 9148 | |
| 9149 | upb_handlers_setstartmsg(h, startmsg, NULL); |
| 9150 | upb_handlers_setendmsg(h, endmsg, NULL); |
| 9151 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9152 | m = upb_handlers_msgdef(h); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 9153 | for(upb_msg_field_begin(&i, m); |
| 9154 | !upb_msg_field_done(&i); |
| 9155 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9156 | const upb_fielddef *f = upb_msg_iter_field(&i); |
| 9157 | bool packed = upb_fielddef_isseq(f) && upb_fielddef_isprimitive(f) && |
| 9158 | upb_fielddef_packed(f); |
| 9159 | upb_handlerattr attr; |
| 9160 | upb_wiretype_t wt = |
| 9161 | packed ? UPB_WIRE_TYPE_DELIMITED |
| 9162 | : upb_pb_native_wire_types[upb_fielddef_descriptortype(f)]; |
| 9163 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9164 | /* Pre-encode the tag for this field. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9165 | new_tag(h, f, wt, &attr); |
| 9166 | |
| 9167 | if (packed) { |
| 9168 | upb_handlers_setstartseq(h, f, encode_startdelimfield, &attr); |
| 9169 | upb_handlers_setendseq(h, f, encode_enddelimfield, &attr); |
| 9170 | } |
| 9171 | |
| 9172 | #define T(upper, lower, upbtype) \ |
| 9173 | case UPB_DESCRIPTOR_TYPE_##upper: \ |
| 9174 | if (packed) { \ |
| 9175 | upb_handlers_set##upbtype(h, f, encode_packed_##lower, &attr); \ |
| 9176 | } else { \ |
| 9177 | upb_handlers_set##upbtype(h, f, encode_scalar_##lower, &attr); \ |
| 9178 | } \ |
| 9179 | break; |
| 9180 | |
| 9181 | switch (upb_fielddef_descriptortype(f)) { |
| 9182 | T(DOUBLE, double, double); |
| 9183 | T(FLOAT, float, float); |
| 9184 | T(INT64, int64, int64); |
| 9185 | T(INT32, int32, int32); |
| 9186 | T(FIXED64, fixed64, uint64); |
| 9187 | T(FIXED32, fixed32, uint32); |
| 9188 | T(BOOL, bool, bool); |
| 9189 | T(UINT32, uint32, uint32); |
| 9190 | T(UINT64, uint64, uint64); |
| 9191 | T(ENUM, enum, int32); |
| 9192 | T(SFIXED32, sfixed32, int32); |
| 9193 | T(SFIXED64, sfixed64, int64); |
| 9194 | T(SINT32, sint32, int32); |
| 9195 | T(SINT64, sint64, int64); |
| 9196 | case UPB_DESCRIPTOR_TYPE_STRING: |
| 9197 | case UPB_DESCRIPTOR_TYPE_BYTES: |
| 9198 | upb_handlers_setstartstr(h, f, encode_startstr, &attr); |
| 9199 | upb_handlers_setendstr(h, f, encode_enddelimfield, &attr); |
| 9200 | upb_handlers_setstring(h, f, encode_strbuf, &attr); |
| 9201 | break; |
| 9202 | case UPB_DESCRIPTOR_TYPE_MESSAGE: |
| 9203 | upb_handlers_setstartsubmsg(h, f, encode_startdelimfield, &attr); |
| 9204 | upb_handlers_setendsubmsg(h, f, encode_enddelimfield, &attr); |
| 9205 | break; |
| 9206 | case UPB_DESCRIPTOR_TYPE_GROUP: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9207 | /* Endgroup takes a different tag (wire_type = END_GROUP). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9208 | upb_handlerattr attr2; |
| 9209 | new_tag(h, f, UPB_WIRE_TYPE_END_GROUP, &attr2); |
| 9210 | |
| 9211 | upb_handlers_setstartsubmsg(h, f, encode_startgroup, &attr); |
| 9212 | upb_handlers_setendsubmsg(h, f, encode_endgroup, &attr2); |
| 9213 | |
| 9214 | upb_handlerattr_uninit(&attr2); |
| 9215 | break; |
| 9216 | } |
| 9217 | } |
| 9218 | |
| 9219 | #undef T |
| 9220 | |
| 9221 | upb_handlerattr_uninit(&attr); |
| 9222 | } |
| 9223 | } |
| 9224 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9225 | void upb_pb_encoder_reset(upb_pb_encoder *e) { |
| 9226 | e->segptr = NULL; |
| 9227 | e->top = NULL; |
| 9228 | e->depth = 0; |
| 9229 | } |
| 9230 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9231 | |
| 9232 | /* public API *****************************************************************/ |
| 9233 | |
| 9234 | const upb_handlers *upb_pb_encoder_newhandlers(const upb_msgdef *m, |
| 9235 | const void *owner) { |
| 9236 | return upb_handlers_newfrozen(m, owner, newhandlers_callback, NULL); |
| 9237 | } |
| 9238 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9239 | upb_pb_encoder *upb_pb_encoder_create(upb_env *env, const upb_handlers *h, |
| 9240 | upb_bytessink *output) { |
| 9241 | const size_t initial_bufsize = 256; |
| 9242 | const size_t initial_segbufsize = 16; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9243 | /* TODO(haberman): make this configurable. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9244 | const size_t stack_size = 64; |
| 9245 | #ifndef NDEBUG |
| 9246 | const size_t size_before = upb_env_bytesallocated(env); |
| 9247 | #endif |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9248 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9249 | upb_pb_encoder *e = upb_env_malloc(env, sizeof(upb_pb_encoder)); |
| 9250 | if (!e) return NULL; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9251 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9252 | e->buf = upb_env_malloc(env, initial_bufsize); |
| 9253 | e->segbuf = upb_env_malloc(env, initial_segbufsize * sizeof(*e->segbuf)); |
| 9254 | e->stack = upb_env_malloc(env, stack_size * sizeof(*e->stack)); |
| 9255 | |
| 9256 | if (!e->buf || !e->segbuf || !e->stack) { |
| 9257 | return NULL; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9258 | } |
| 9259 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9260 | e->limit = e->buf + initial_bufsize; |
| 9261 | e->seglimit = e->segbuf + initial_segbufsize; |
| 9262 | e->stacklimit = e->stack + stack_size; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9263 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9264 | upb_pb_encoder_reset(e); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9265 | upb_sink_reset(&e->input_, h, e); |
| 9266 | |
| 9267 | e->env = env; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9268 | e->output_ = output; |
| 9269 | e->subc = output->closure; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9270 | e->ptr = e->buf; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9271 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9272 | /* If this fails, increase the value in encoder.h. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9273 | assert(upb_env_bytesallocated(env) - size_before <= UPB_PB_ENCODER_SIZE); |
| 9274 | return e; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9275 | } |
| 9276 | |
| 9277 | upb_sink *upb_pb_encoder_input(upb_pb_encoder *e) { return &e->input_; } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9278 | |
| 9279 | |
| 9280 | #include <stdio.h> |
| 9281 | #include <stdlib.h> |
| 9282 | #include <string.h> |
| 9283 | |
| 9284 | upb_def **upb_load_defs_from_descriptor(const char *str, size_t len, int *n, |
| 9285 | void *owner, upb_status *status) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9286 | /* Create handlers. */ |
| 9287 | const upb_pbdecodermethod *decoder_m; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9288 | const upb_handlers *reader_h = upb_descreader_newhandlers(&reader_h); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9289 | upb_env env; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9290 | upb_pbdecodermethodopts opts; |
| 9291 | upb_pbdecoder *decoder; |
| 9292 | upb_descreader *reader; |
| 9293 | bool ok; |
| 9294 | upb_def **ret = NULL; |
| 9295 | upb_def **defs; |
| 9296 | |
| 9297 | upb_pbdecodermethodopts_init(&opts, reader_h); |
| 9298 | decoder_m = upb_pbdecodermethod_new(&opts, &decoder_m); |
| 9299 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9300 | upb_env_init(&env); |
| 9301 | upb_env_reporterrorsto(&env, status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9302 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9303 | reader = upb_descreader_create(&env, reader_h); |
| 9304 | decoder = upb_pbdecoder_create(&env, decoder_m, upb_descreader_input(reader)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9305 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9306 | /* Push input data. */ |
| 9307 | ok = upb_bufsrc_putbuf(str, len, upb_pbdecoder_input(decoder)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9308 | |
| 9309 | if (!ok) goto cleanup; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9310 | defs = upb_descreader_getdefs(reader, owner, n); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9311 | ret = malloc(sizeof(upb_def*) * (*n)); |
| 9312 | memcpy(ret, defs, sizeof(upb_def*) * (*n)); |
| 9313 | |
| 9314 | cleanup: |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9315 | upb_env_uninit(&env); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9316 | upb_handlers_unref(reader_h, &reader_h); |
| 9317 | upb_pbdecodermethod_unref(decoder_m, &decoder_m); |
| 9318 | return ret; |
| 9319 | } |
| 9320 | |
| 9321 | bool upb_load_descriptor_into_symtab(upb_symtab *s, const char *str, size_t len, |
| 9322 | upb_status *status) { |
| 9323 | int n; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9324 | bool success; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9325 | upb_def **defs = upb_load_defs_from_descriptor(str, len, &n, &defs, status); |
| 9326 | if (!defs) return false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9327 | success = upb_symtab_add(s, defs, n, &defs, status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9328 | free(defs); |
| 9329 | return success; |
| 9330 | } |
| 9331 | |
| 9332 | char *upb_readfile(const char *filename, size_t *len) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9333 | long size; |
| 9334 | char *buf; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9335 | FILE *f = fopen(filename, "rb"); |
| 9336 | if(!f) return NULL; |
| 9337 | if(fseek(f, 0, SEEK_END) != 0) goto error; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9338 | size = ftell(f); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9339 | if(size < 0) goto error; |
| 9340 | if(fseek(f, 0, SEEK_SET) != 0) goto error; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9341 | buf = malloc(size + 1); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9342 | if(size && fread(buf, size, 1, f) != 1) goto error; |
| 9343 | fclose(f); |
| 9344 | if (len) *len = size; |
| 9345 | return buf; |
| 9346 | |
| 9347 | error: |
| 9348 | fclose(f); |
| 9349 | return NULL; |
| 9350 | } |
| 9351 | |
| 9352 | bool upb_load_descriptor_file_into_symtab(upb_symtab *symtab, const char *fname, |
| 9353 | upb_status *status) { |
| 9354 | size_t len; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9355 | bool success; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9356 | char *data = upb_readfile(fname, &len); |
| 9357 | if (!data) { |
| 9358 | if (status) upb_status_seterrf(status, "Couldn't read file: %s", fname); |
| 9359 | return false; |
| 9360 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9361 | success = upb_load_descriptor_into_symtab(symtab, data, len, status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9362 | free(data); |
| 9363 | return success; |
| 9364 | } |
| 9365 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 9366 | * upb::pb::TextPrinter |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9367 | * |
| 9368 | * OPT: This is not optimized at all. It uses printf() which parses the format |
| 9369 | * string every time, and it allocates memory for every put. |
| 9370 | */ |
| 9371 | |
| 9372 | |
| 9373 | #include <ctype.h> |
| 9374 | #include <float.h> |
| 9375 | #include <inttypes.h> |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9376 | #include <stdarg.h> |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9377 | #include <stdio.h> |
| 9378 | #include <stdlib.h> |
| 9379 | #include <string.h> |
| 9380 | |
| 9381 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9382 | struct upb_textprinter { |
| 9383 | upb_sink input_; |
| 9384 | upb_bytessink *output_; |
| 9385 | int indent_depth_; |
| 9386 | bool single_line_; |
| 9387 | void *subc; |
| 9388 | }; |
| 9389 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9390 | #define CHECK(x) if ((x) < 0) goto err; |
| 9391 | |
| 9392 | static const char *shortname(const char *longname) { |
| 9393 | const char *last = strrchr(longname, '.'); |
| 9394 | return last ? last + 1 : longname; |
| 9395 | } |
| 9396 | |
| 9397 | static int indent(upb_textprinter *p) { |
| 9398 | int i; |
| 9399 | if (!p->single_line_) |
| 9400 | for (i = 0; i < p->indent_depth_; i++) |
| 9401 | upb_bytessink_putbuf(p->output_, p->subc, " ", 2, NULL); |
| 9402 | return 0; |
| 9403 | } |
| 9404 | |
| 9405 | static int endfield(upb_textprinter *p) { |
| 9406 | const char ch = (p->single_line_ ? ' ' : '\n'); |
| 9407 | upb_bytessink_putbuf(p->output_, p->subc, &ch, 1, NULL); |
| 9408 | return 0; |
| 9409 | } |
| 9410 | |
| 9411 | static int putescaped(upb_textprinter *p, const char *buf, size_t len, |
| 9412 | bool preserve_utf8) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9413 | /* Based on CEscapeInternal() from Google's protobuf release. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9414 | char dstbuf[4096], *dst = dstbuf, *dstend = dstbuf + sizeof(dstbuf); |
| 9415 | const char *end = buf + len; |
| 9416 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9417 | /* I think hex is prettier and more useful, but proto2 uses octal; should |
| 9418 | * investigate whether it can parse hex also. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9419 | const bool use_hex = false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9420 | bool last_hex_escape = false; /* true if last output char was \xNN */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9421 | |
| 9422 | for (; buf < end; buf++) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9423 | bool is_hex_escape; |
| 9424 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9425 | if (dstend - dst < 4) { |
| 9426 | upb_bytessink_putbuf(p->output_, p->subc, dstbuf, dst - dstbuf, NULL); |
| 9427 | dst = dstbuf; |
| 9428 | } |
| 9429 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9430 | is_hex_escape = false; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9431 | switch (*buf) { |
| 9432 | case '\n': *(dst++) = '\\'; *(dst++) = 'n'; break; |
| 9433 | case '\r': *(dst++) = '\\'; *(dst++) = 'r'; break; |
| 9434 | case '\t': *(dst++) = '\\'; *(dst++) = 't'; break; |
| 9435 | case '\"': *(dst++) = '\\'; *(dst++) = '\"'; break; |
| 9436 | case '\'': *(dst++) = '\\'; *(dst++) = '\''; break; |
| 9437 | case '\\': *(dst++) = '\\'; *(dst++) = '\\'; break; |
| 9438 | default: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9439 | /* Note that if we emit \xNN and the buf character after that is a hex |
| 9440 | * digit then that digit must be escaped too to prevent it being |
| 9441 | * interpreted as part of the character code by C. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9442 | if ((!preserve_utf8 || (uint8_t)*buf < 0x80) && |
| 9443 | (!isprint(*buf) || (last_hex_escape && isxdigit(*buf)))) { |
| 9444 | sprintf(dst, (use_hex ? "\\x%02x" : "\\%03o"), (uint8_t)*buf); |
| 9445 | is_hex_escape = use_hex; |
| 9446 | dst += 4; |
| 9447 | } else { |
| 9448 | *(dst++) = *buf; break; |
| 9449 | } |
| 9450 | } |
| 9451 | last_hex_escape = is_hex_escape; |
| 9452 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9453 | /* Flush remaining data. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9454 | upb_bytessink_putbuf(p->output_, p->subc, dstbuf, dst - dstbuf, NULL); |
| 9455 | return 0; |
| 9456 | } |
| 9457 | |
| 9458 | bool putf(upb_textprinter *p, const char *fmt, ...) { |
| 9459 | va_list args; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9460 | va_list args_copy; |
| 9461 | char *str; |
| 9462 | int written; |
| 9463 | int len; |
| 9464 | bool ok; |
| 9465 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9466 | va_start(args, fmt); |
| 9467 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9468 | /* Run once to get the length of the string. */ |
| 9469 | _upb_va_copy(args_copy, args); |
| 9470 | len = _upb_vsnprintf(NULL, 0, fmt, args_copy); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9471 | va_end(args_copy); |
| 9472 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9473 | /* + 1 for NULL terminator (vsprintf() requires it even if we don't). */ |
| 9474 | str = malloc(len + 1); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9475 | if (!str) return false; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9476 | written = vsprintf(str, fmt, args); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9477 | va_end(args); |
| 9478 | UPB_ASSERT_VAR(written, written == len); |
| 9479 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9480 | ok = upb_bytessink_putbuf(p->output_, p->subc, str, len, NULL); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9481 | free(str); |
| 9482 | return ok; |
| 9483 | } |
| 9484 | |
| 9485 | |
| 9486 | /* handlers *******************************************************************/ |
| 9487 | |
| 9488 | static bool textprinter_startmsg(void *c, const void *hd) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9489 | upb_textprinter *p = c; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9490 | UPB_UNUSED(hd); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9491 | if (p->indent_depth_ == 0) { |
| 9492 | upb_bytessink_start(p->output_, 0, &p->subc); |
| 9493 | } |
| 9494 | return true; |
| 9495 | } |
| 9496 | |
| 9497 | static bool textprinter_endmsg(void *c, const void *hd, upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9498 | upb_textprinter *p = c; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9499 | UPB_UNUSED(hd); |
| 9500 | UPB_UNUSED(s); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9501 | if (p->indent_depth_ == 0) { |
| 9502 | upb_bytessink_end(p->output_); |
| 9503 | } |
| 9504 | return true; |
| 9505 | } |
| 9506 | |
| 9507 | #define TYPE(name, ctype, fmt) \ |
| 9508 | static bool textprinter_put ## name(void *closure, const void *handler_data, \ |
| 9509 | ctype val) { \ |
| 9510 | upb_textprinter *p = closure; \ |
| 9511 | const upb_fielddef *f = handler_data; \ |
| 9512 | CHECK(indent(p)); \ |
| 9513 | putf(p, "%s: " fmt, upb_fielddef_name(f), val); \ |
| 9514 | CHECK(endfield(p)); \ |
| 9515 | return true; \ |
| 9516 | err: \ |
| 9517 | return false; \ |
| 9518 | } |
| 9519 | |
| 9520 | static bool textprinter_putbool(void *closure, const void *handler_data, |
| 9521 | bool val) { |
| 9522 | upb_textprinter *p = closure; |
| 9523 | const upb_fielddef *f = handler_data; |
| 9524 | CHECK(indent(p)); |
| 9525 | putf(p, "%s: %s", upb_fielddef_name(f), val ? "true" : "false"); |
| 9526 | CHECK(endfield(p)); |
| 9527 | return true; |
| 9528 | err: |
| 9529 | return false; |
| 9530 | } |
| 9531 | |
| 9532 | #define STRINGIFY_HELPER(x) #x |
| 9533 | #define STRINGIFY_MACROVAL(x) STRINGIFY_HELPER(x) |
| 9534 | |
| 9535 | TYPE(int32, int32_t, "%" PRId32) |
| 9536 | TYPE(int64, int64_t, "%" PRId64) |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9537 | TYPE(uint32, uint32_t, "%" PRIu32) |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9538 | TYPE(uint64, uint64_t, "%" PRIu64) |
| 9539 | TYPE(float, float, "%." STRINGIFY_MACROVAL(FLT_DIG) "g") |
| 9540 | TYPE(double, double, "%." STRINGIFY_MACROVAL(DBL_DIG) "g") |
| 9541 | |
| 9542 | #undef TYPE |
| 9543 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9544 | /* Output a symbolic value from the enum if found, else just print as int32. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9545 | static bool textprinter_putenum(void *closure, const void *handler_data, |
| 9546 | int32_t val) { |
| 9547 | upb_textprinter *p = closure; |
| 9548 | const upb_fielddef *f = handler_data; |
| 9549 | const upb_enumdef *enum_def = upb_downcast_enumdef(upb_fielddef_subdef(f)); |
| 9550 | const char *label = upb_enumdef_iton(enum_def, val); |
| 9551 | if (label) { |
| 9552 | indent(p); |
| 9553 | putf(p, "%s: %s", upb_fielddef_name(f), label); |
| 9554 | endfield(p); |
| 9555 | } else { |
| 9556 | if (!textprinter_putint32(closure, handler_data, val)) |
| 9557 | return false; |
| 9558 | } |
| 9559 | return true; |
| 9560 | } |
| 9561 | |
| 9562 | static void *textprinter_startstr(void *closure, const void *handler_data, |
| 9563 | size_t size_hint) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9564 | upb_textprinter *p = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9565 | const upb_fielddef *f = handler_data; |
| 9566 | UPB_UNUSED(size_hint); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9567 | indent(p); |
| 9568 | putf(p, "%s: \"", upb_fielddef_name(f)); |
| 9569 | return p; |
| 9570 | } |
| 9571 | |
| 9572 | static bool textprinter_endstr(void *closure, const void *handler_data) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9573 | upb_textprinter *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9574 | UPB_UNUSED(handler_data); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9575 | putf(p, "\""); |
| 9576 | endfield(p); |
| 9577 | return true; |
| 9578 | } |
| 9579 | |
| 9580 | static size_t textprinter_putstr(void *closure, const void *hd, const char *buf, |
| 9581 | size_t len, const upb_bufhandle *handle) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9582 | upb_textprinter *p = closure; |
| 9583 | const upb_fielddef *f = hd; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9584 | UPB_UNUSED(handle); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9585 | CHECK(putescaped(p, buf, len, upb_fielddef_type(f) == UPB_TYPE_STRING)); |
| 9586 | return len; |
| 9587 | err: |
| 9588 | return 0; |
| 9589 | } |
| 9590 | |
| 9591 | static void *textprinter_startsubmsg(void *closure, const void *handler_data) { |
| 9592 | upb_textprinter *p = closure; |
| 9593 | const char *name = handler_data; |
| 9594 | CHECK(indent(p)); |
| 9595 | putf(p, "%s {%c", name, p->single_line_ ? ' ' : '\n'); |
| 9596 | p->indent_depth_++; |
| 9597 | return p; |
| 9598 | err: |
| 9599 | return UPB_BREAK; |
| 9600 | } |
| 9601 | |
| 9602 | static bool textprinter_endsubmsg(void *closure, const void *handler_data) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9603 | upb_textprinter *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9604 | UPB_UNUSED(handler_data); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9605 | p->indent_depth_--; |
| 9606 | CHECK(indent(p)); |
| 9607 | upb_bytessink_putbuf(p->output_, p->subc, "}", 1, NULL); |
| 9608 | CHECK(endfield(p)); |
| 9609 | return true; |
| 9610 | err: |
| 9611 | return false; |
| 9612 | } |
| 9613 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9614 | static void onmreg(const void *c, upb_handlers *h) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9615 | const upb_msgdef *m = upb_handlers_msgdef(h); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9616 | upb_msg_field_iter i; |
| 9617 | UPB_UNUSED(c); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9618 | |
| 9619 | upb_handlers_setstartmsg(h, textprinter_startmsg, NULL); |
| 9620 | upb_handlers_setendmsg(h, textprinter_endmsg, NULL); |
| 9621 | |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 9622 | for(upb_msg_field_begin(&i, m); |
| 9623 | !upb_msg_field_done(&i); |
| 9624 | upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9625 | upb_fielddef *f = upb_msg_iter_field(&i); |
| 9626 | upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER; |
| 9627 | upb_handlerattr_sethandlerdata(&attr, f); |
| 9628 | switch (upb_fielddef_type(f)) { |
| 9629 | case UPB_TYPE_INT32: |
| 9630 | upb_handlers_setint32(h, f, textprinter_putint32, &attr); |
| 9631 | break; |
| 9632 | case UPB_TYPE_INT64: |
| 9633 | upb_handlers_setint64(h, f, textprinter_putint64, &attr); |
| 9634 | break; |
| 9635 | case UPB_TYPE_UINT32: |
| 9636 | upb_handlers_setuint32(h, f, textprinter_putuint32, &attr); |
| 9637 | break; |
| 9638 | case UPB_TYPE_UINT64: |
| 9639 | upb_handlers_setuint64(h, f, textprinter_putuint64, &attr); |
| 9640 | break; |
| 9641 | case UPB_TYPE_FLOAT: |
| 9642 | upb_handlers_setfloat(h, f, textprinter_putfloat, &attr); |
| 9643 | break; |
| 9644 | case UPB_TYPE_DOUBLE: |
| 9645 | upb_handlers_setdouble(h, f, textprinter_putdouble, &attr); |
| 9646 | break; |
| 9647 | case UPB_TYPE_BOOL: |
| 9648 | upb_handlers_setbool(h, f, textprinter_putbool, &attr); |
| 9649 | break; |
| 9650 | case UPB_TYPE_STRING: |
| 9651 | case UPB_TYPE_BYTES: |
| 9652 | upb_handlers_setstartstr(h, f, textprinter_startstr, &attr); |
| 9653 | upb_handlers_setstring(h, f, textprinter_putstr, &attr); |
| 9654 | upb_handlers_setendstr(h, f, textprinter_endstr, &attr); |
| 9655 | break; |
| 9656 | case UPB_TYPE_MESSAGE: { |
| 9657 | const char *name = |
| 9658 | upb_fielddef_istagdelim(f) |
| 9659 | ? shortname(upb_msgdef_fullname(upb_fielddef_msgsubdef(f))) |
| 9660 | : upb_fielddef_name(f); |
| 9661 | upb_handlerattr_sethandlerdata(&attr, name); |
| 9662 | upb_handlers_setstartsubmsg(h, f, textprinter_startsubmsg, &attr); |
| 9663 | upb_handlers_setendsubmsg(h, f, textprinter_endsubmsg, &attr); |
| 9664 | break; |
| 9665 | } |
| 9666 | case UPB_TYPE_ENUM: |
| 9667 | upb_handlers_setint32(h, f, textprinter_putenum, &attr); |
| 9668 | break; |
| 9669 | } |
| 9670 | } |
| 9671 | } |
| 9672 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9673 | static void textprinter_reset(upb_textprinter *p, bool single_line) { |
| 9674 | p->single_line_ = single_line; |
| 9675 | p->indent_depth_ = 0; |
| 9676 | } |
| 9677 | |
| 9678 | |
| 9679 | /* Public API *****************************************************************/ |
| 9680 | |
| 9681 | upb_textprinter *upb_textprinter_create(upb_env *env, const upb_handlers *h, |
| 9682 | upb_bytessink *output) { |
| 9683 | upb_textprinter *p = upb_env_malloc(env, sizeof(upb_textprinter)); |
| 9684 | if (!p) return NULL; |
| 9685 | |
| 9686 | p->output_ = output; |
| 9687 | upb_sink_reset(&p->input_, h, p); |
| 9688 | textprinter_reset(p, false); |
| 9689 | |
| 9690 | return p; |
| 9691 | } |
| 9692 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9693 | const upb_handlers *upb_textprinter_newhandlers(const upb_msgdef *m, |
| 9694 | const void *owner) { |
| 9695 | return upb_handlers_newfrozen(m, owner, &onmreg, NULL); |
| 9696 | } |
| 9697 | |
| 9698 | upb_sink *upb_textprinter_input(upb_textprinter *p) { return &p->input_; } |
| 9699 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9700 | void upb_textprinter_setsingleline(upb_textprinter *p, bool single_line) { |
| 9701 | p->single_line_ = single_line; |
| 9702 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9703 | |
| 9704 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9705 | /* Index is descriptor type. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9706 | const uint8_t upb_pb_native_wire_types[] = { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9707 | UPB_WIRE_TYPE_END_GROUP, /* ENDGROUP */ |
| 9708 | UPB_WIRE_TYPE_64BIT, /* DOUBLE */ |
| 9709 | UPB_WIRE_TYPE_32BIT, /* FLOAT */ |
| 9710 | UPB_WIRE_TYPE_VARINT, /* INT64 */ |
| 9711 | UPB_WIRE_TYPE_VARINT, /* UINT64 */ |
| 9712 | UPB_WIRE_TYPE_VARINT, /* INT32 */ |
| 9713 | UPB_WIRE_TYPE_64BIT, /* FIXED64 */ |
| 9714 | UPB_WIRE_TYPE_32BIT, /* FIXED32 */ |
| 9715 | UPB_WIRE_TYPE_VARINT, /* BOOL */ |
| 9716 | UPB_WIRE_TYPE_DELIMITED, /* STRING */ |
| 9717 | UPB_WIRE_TYPE_START_GROUP, /* GROUP */ |
| 9718 | UPB_WIRE_TYPE_DELIMITED, /* MESSAGE */ |
| 9719 | UPB_WIRE_TYPE_DELIMITED, /* BYTES */ |
| 9720 | UPB_WIRE_TYPE_VARINT, /* UINT32 */ |
| 9721 | UPB_WIRE_TYPE_VARINT, /* ENUM */ |
| 9722 | UPB_WIRE_TYPE_32BIT, /* SFIXED32 */ |
| 9723 | UPB_WIRE_TYPE_64BIT, /* SFIXED64 */ |
| 9724 | UPB_WIRE_TYPE_VARINT, /* SINT32 */ |
| 9725 | UPB_WIRE_TYPE_VARINT, /* SINT64 */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9726 | }; |
| 9727 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9728 | /* A basic branch-based decoder, uses 32-bit values to get good performance |
| 9729 | * on 32-bit architectures (but performs well on 64-bits also). |
| 9730 | * This scheme comes from the original Google Protobuf implementation |
| 9731 | * (proto2). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9732 | upb_decoderet upb_vdecode_max8_branch32(upb_decoderet r) { |
| 9733 | upb_decoderet err = {NULL, 0}; |
| 9734 | const char *p = r.p; |
| 9735 | uint32_t low = (uint32_t)r.val; |
| 9736 | uint32_t high = 0; |
| 9737 | uint32_t b; |
| 9738 | b = *(p++); low |= (b & 0x7fU) << 14; if (!(b & 0x80)) goto done; |
| 9739 | b = *(p++); low |= (b & 0x7fU) << 21; if (!(b & 0x80)) goto done; |
| 9740 | b = *(p++); low |= (b & 0x7fU) << 28; |
| 9741 | high = (b & 0x7fU) >> 4; if (!(b & 0x80)) goto done; |
| 9742 | b = *(p++); high |= (b & 0x7fU) << 3; if (!(b & 0x80)) goto done; |
| 9743 | b = *(p++); high |= (b & 0x7fU) << 10; if (!(b & 0x80)) goto done; |
| 9744 | b = *(p++); high |= (b & 0x7fU) << 17; if (!(b & 0x80)) goto done; |
| 9745 | b = *(p++); high |= (b & 0x7fU) << 24; if (!(b & 0x80)) goto done; |
| 9746 | b = *(p++); high |= (b & 0x7fU) << 31; if (!(b & 0x80)) goto done; |
| 9747 | return err; |
| 9748 | |
| 9749 | done: |
| 9750 | r.val = ((uint64_t)high << 32) | low; |
| 9751 | r.p = p; |
| 9752 | return r; |
| 9753 | } |
| 9754 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9755 | /* Like the previous, but uses 64-bit values. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9756 | upb_decoderet upb_vdecode_max8_branch64(upb_decoderet r) { |
| 9757 | const char *p = r.p; |
| 9758 | uint64_t val = r.val; |
| 9759 | uint64_t b; |
| 9760 | upb_decoderet err = {NULL, 0}; |
| 9761 | b = *(p++); val |= (b & 0x7fU) << 14; if (!(b & 0x80)) goto done; |
| 9762 | b = *(p++); val |= (b & 0x7fU) << 21; if (!(b & 0x80)) goto done; |
| 9763 | b = *(p++); val |= (b & 0x7fU) << 28; if (!(b & 0x80)) goto done; |
| 9764 | b = *(p++); val |= (b & 0x7fU) << 35; if (!(b & 0x80)) goto done; |
| 9765 | b = *(p++); val |= (b & 0x7fU) << 42; if (!(b & 0x80)) goto done; |
| 9766 | b = *(p++); val |= (b & 0x7fU) << 49; if (!(b & 0x80)) goto done; |
| 9767 | b = *(p++); val |= (b & 0x7fU) << 56; if (!(b & 0x80)) goto done; |
| 9768 | b = *(p++); val |= (b & 0x7fU) << 63; if (!(b & 0x80)) goto done; |
| 9769 | return err; |
| 9770 | |
| 9771 | done: |
| 9772 | r.val = val; |
| 9773 | r.p = p; |
| 9774 | return r; |
| 9775 | } |
| 9776 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9777 | /* Given an encoded varint v, returns an integer with a single bit set that |
| 9778 | * indicates the end of the varint. Subtracting one from this value will |
| 9779 | * yield a mask that leaves only bits that are part of the varint. Returns |
| 9780 | * 0 if the varint is unterminated. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9781 | static uint64_t upb_get_vstopbit(uint64_t v) { |
| 9782 | uint64_t cbits = v | 0x7f7f7f7f7f7f7f7fULL; |
| 9783 | return ~cbits & (cbits+1); |
| 9784 | } |
| 9785 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9786 | /* A branchless decoder. Credit to Pascal Massimino for the bit-twiddling. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9787 | upb_decoderet upb_vdecode_max8_massimino(upb_decoderet r) { |
| 9788 | uint64_t b; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9789 | uint64_t stop_bit; |
| 9790 | upb_decoderet my_r; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9791 | memcpy(&b, r.p, sizeof(b)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9792 | stop_bit = upb_get_vstopbit(b); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9793 | b = (b & 0x7f7f7f7f7f7f7f7fULL) & (stop_bit - 1); |
| 9794 | b += b & 0x007f007f007f007fULL; |
| 9795 | b += 3 * (b & 0x0000ffff0000ffffULL); |
| 9796 | b += 15 * (b & 0x00000000ffffffffULL); |
| 9797 | if (stop_bit == 0) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9798 | /* Error: unterminated varint. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9799 | upb_decoderet err_r = {(void*)0, 0}; |
| 9800 | return err_r; |
| 9801 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9802 | my_r = upb_decoderet_make(r.p + ((__builtin_ctzll(stop_bit) + 1) / 8), |
| 9803 | r.val | (b << 7)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9804 | return my_r; |
| 9805 | } |
| 9806 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9807 | /* A branchless decoder. Credit to Daniel Wright for the bit-twiddling. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9808 | upb_decoderet upb_vdecode_max8_wright(upb_decoderet r) { |
| 9809 | uint64_t b; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9810 | uint64_t stop_bit; |
| 9811 | upb_decoderet my_r; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9812 | memcpy(&b, r.p, sizeof(b)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9813 | stop_bit = upb_get_vstopbit(b); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9814 | b &= (stop_bit - 1); |
| 9815 | b = ((b & 0x7f007f007f007f00ULL) >> 1) | (b & 0x007f007f007f007fULL); |
| 9816 | b = ((b & 0xffff0000ffff0000ULL) >> 2) | (b & 0x0000ffff0000ffffULL); |
| 9817 | b = ((b & 0xffffffff00000000ULL) >> 4) | (b & 0x00000000ffffffffULL); |
| 9818 | if (stop_bit == 0) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9819 | /* Error: unterminated varint. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9820 | upb_decoderet err_r = {(void*)0, 0}; |
| 9821 | return err_r; |
| 9822 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9823 | my_r = upb_decoderet_make(r.p + ((__builtin_ctzll(stop_bit) + 1) / 8), |
| 9824 | r.val | (b << 14)); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9825 | return my_r; |
| 9826 | } |
| 9827 | |
| 9828 | #line 1 "upb/json/parser.rl" |
| 9829 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 9830 | ** upb::json::Parser (upb_json_parser) |
| 9831 | ** |
| 9832 | ** A parser that uses the Ragel State Machine Compiler to generate |
| 9833 | ** the finite automata. |
| 9834 | ** |
| 9835 | ** Ragel only natively handles regular languages, but we can manually |
| 9836 | ** program it a bit to handle context-free languages like JSON, by using |
| 9837 | ** the "fcall" and "fret" constructs. |
| 9838 | ** |
| 9839 | ** This parser can handle the basics, but needs several things to be fleshed |
| 9840 | ** out: |
| 9841 | ** |
| 9842 | ** - handling of unicode escape sequences (including high surrogate pairs). |
| 9843 | ** - properly check and report errors for unknown fields, stack overflow, |
| 9844 | ** improper array nesting (or lack of nesting). |
| 9845 | ** - handling of base64 sequences with padding characters. |
| 9846 | ** - handling of push-back (non-success returns from sink functions). |
| 9847 | ** - handling of keys/escape-sequences/etc that span input buffers. |
| 9848 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9849 | |
| 9850 | #include <stdio.h> |
| 9851 | #include <stdint.h> |
| 9852 | #include <assert.h> |
| 9853 | #include <string.h> |
| 9854 | #include <stdlib.h> |
| 9855 | #include <errno.h> |
| 9856 | |
| 9857 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9858 | #define UPB_JSON_MAX_DEPTH 64 |
| 9859 | |
| 9860 | typedef struct { |
| 9861 | upb_sink sink; |
| 9862 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9863 | /* The current message in which we're parsing, and the field whose value we're |
| 9864 | * expecting next. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9865 | const upb_msgdef *m; |
| 9866 | const upb_fielddef *f; |
| 9867 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 9868 | /* The table mapping json name to fielddef for this message. */ |
| 9869 | upb_strtable *name_table; |
| 9870 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9871 | /* We are in a repeated-field context, ready to emit mapentries as |
| 9872 | * submessages. This flag alters the start-of-object (open-brace) behavior to |
| 9873 | * begin a sequence of mapentry messages rather than a single submessage. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9874 | bool is_map; |
| 9875 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9876 | /* We are in a map-entry message context. This flag is set when parsing the |
| 9877 | * value field of a single map entry and indicates to all value-field parsers |
| 9878 | * (subobjects, strings, numbers, and bools) that the map-entry submessage |
| 9879 | * should end as soon as the value is parsed. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9880 | bool is_mapentry; |
| 9881 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9882 | /* If |is_map| or |is_mapentry| is true, |mapfield| refers to the parent |
| 9883 | * message's map field that we're currently parsing. This differs from |f| |
| 9884 | * because |f| is the field in the *current* message (i.e., the map-entry |
| 9885 | * message itself), not the parent's field that leads to this map. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9886 | const upb_fielddef *mapfield; |
| 9887 | } upb_jsonparser_frame; |
| 9888 | |
| 9889 | struct upb_json_parser { |
| 9890 | upb_env *env; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 9891 | const upb_json_parsermethod *method; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9892 | upb_bytessink input_; |
| 9893 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9894 | /* Stack to track the JSON scopes we are in. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9895 | upb_jsonparser_frame stack[UPB_JSON_MAX_DEPTH]; |
| 9896 | upb_jsonparser_frame *top; |
| 9897 | upb_jsonparser_frame *limit; |
| 9898 | |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 9899 | upb_status status; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9900 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9901 | /* Ragel's internal parsing stack for the parsing state machine. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9902 | int current_state; |
| 9903 | int parser_stack[UPB_JSON_MAX_DEPTH]; |
| 9904 | int parser_top; |
| 9905 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9906 | /* The handle for the current buffer. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9907 | const upb_bufhandle *handle; |
| 9908 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9909 | /* Accumulate buffer. See details in parser.rl. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9910 | const char *accumulated; |
| 9911 | size_t accumulated_len; |
| 9912 | char *accumulate_buf; |
| 9913 | size_t accumulate_buf_size; |
| 9914 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9915 | /* Multi-part text data. See details in parser.rl. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9916 | int multipart_state; |
| 9917 | upb_selector_t string_selector; |
| 9918 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9919 | /* Input capture. See details in parser.rl. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9920 | const char *capture; |
| 9921 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9922 | /* Intermediate result of parsing a unicode escape sequence. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 9923 | uint32_t digit; |
| 9924 | }; |
| 9925 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 9926 | struct upb_json_parsermethod { |
| 9927 | upb_refcounted base; |
| 9928 | |
| 9929 | upb_byteshandler input_handler_; |
| 9930 | |
| 9931 | /* Mainly for the purposes of refcounting, so all the fielddefs we point |
| 9932 | * to stay alive. */ |
| 9933 | const upb_msgdef *msg; |
| 9934 | |
| 9935 | /* Keys are upb_msgdef*, values are upb_strtable (json_name -> fielddef) */ |
| 9936 | upb_inttable name_tables; |
| 9937 | }; |
| 9938 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9939 | #define PARSER_CHECK_RETURN(x) if (!(x)) return false |
| 9940 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9941 | /* Used to signal that a capture has been suspended. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 9942 | static char suspend_capture; |
| 9943 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9944 | static upb_selector_t getsel_for_handlertype(upb_json_parser *p, |
| 9945 | upb_handlertype_t type) { |
| 9946 | upb_selector_t sel; |
| 9947 | bool ok = upb_handlers_getselector(p->top->f, type, &sel); |
| 9948 | UPB_ASSERT_VAR(ok, ok); |
| 9949 | return sel; |
| 9950 | } |
| 9951 | |
| 9952 | static upb_selector_t parser_getsel(upb_json_parser *p) { |
| 9953 | return getsel_for_handlertype( |
| 9954 | p, upb_handlers_getprimitivehandlertype(p->top->f)); |
| 9955 | } |
| 9956 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9957 | static bool check_stack(upb_json_parser *p) { |
| 9958 | if ((p->top + 1) == p->limit) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 9959 | upb_status_seterrmsg(&p->status, "Nesting too deep"); |
| 9960 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9961 | return false; |
| 9962 | } |
| 9963 | |
| 9964 | return true; |
| 9965 | } |
| 9966 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 9967 | static void set_name_table(upb_json_parser *p, upb_jsonparser_frame *frame) { |
| 9968 | upb_value v; |
| 9969 | bool ok = upb_inttable_lookupptr(&p->method->name_tables, frame->m, &v); |
| 9970 | UPB_ASSERT_VAR(ok, ok); |
| 9971 | frame->name_table = upb_value_getptr(v); |
| 9972 | } |
| 9973 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9974 | /* There are GCC/Clang built-ins for overflow checking which we could start |
| 9975 | * using if there was any performance benefit to it. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9976 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 9977 | static bool checked_add(size_t a, size_t b, size_t *c) { |
| 9978 | if (SIZE_MAX - a < b) return false; |
| 9979 | *c = a + b; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9980 | return true; |
| 9981 | } |
| 9982 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 9983 | static size_t saturating_multiply(size_t a, size_t b) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9984 | /* size_t is unsigned, so this is defined behavior even on overflow. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 9985 | size_t ret = a * b; |
| 9986 | if (b != 0 && ret / b != a) { |
| 9987 | ret = SIZE_MAX; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9988 | } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 9989 | return ret; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9990 | } |
| 9991 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9992 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 9993 | /* Base64 decoding ************************************************************/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9994 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 9995 | /* TODO(haberman): make this streaming. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 9996 | |
| 9997 | static const signed char b64table[] = { |
| 9998 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 9999 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10000 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10001 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10002 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10003 | -1, -1, -1, 62/*+*/, -1, -1, -1, 63/*/ */, |
| 10004 | 52/*0*/, 53/*1*/, 54/*2*/, 55/*3*/, 56/*4*/, 57/*5*/, 58/*6*/, 59/*7*/, |
| 10005 | 60/*8*/, 61/*9*/, -1, -1, -1, -1, -1, -1, |
| 10006 | -1, 0/*A*/, 1/*B*/, 2/*C*/, 3/*D*/, 4/*E*/, 5/*F*/, 6/*G*/, |
| 10007 | 07/*H*/, 8/*I*/, 9/*J*/, 10/*K*/, 11/*L*/, 12/*M*/, 13/*N*/, 14/*O*/, |
| 10008 | 15/*P*/, 16/*Q*/, 17/*R*/, 18/*S*/, 19/*T*/, 20/*U*/, 21/*V*/, 22/*W*/, |
| 10009 | 23/*X*/, 24/*Y*/, 25/*Z*/, -1, -1, -1, -1, -1, |
| 10010 | -1, 26/*a*/, 27/*b*/, 28/*c*/, 29/*d*/, 30/*e*/, 31/*f*/, 32/*g*/, |
| 10011 | 33/*h*/, 34/*i*/, 35/*j*/, 36/*k*/, 37/*l*/, 38/*m*/, 39/*n*/, 40/*o*/, |
| 10012 | 41/*p*/, 42/*q*/, 43/*r*/, 44/*s*/, 45/*t*/, 46/*u*/, 47/*v*/, 48/*w*/, |
| 10013 | 49/*x*/, 50/*y*/, 51/*z*/, -1, -1, -1, -1, -1, |
| 10014 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10015 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10016 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10017 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10018 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10019 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10020 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10021 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10022 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10023 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10024 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10025 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10026 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10027 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10028 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 10029 | -1, -1, -1, -1, -1, -1, -1, -1 |
| 10030 | }; |
| 10031 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10032 | /* Returns the table value sign-extended to 32 bits. Knowing that the upper |
| 10033 | * bits will be 1 for unrecognized characters makes it easier to check for |
| 10034 | * this error condition later (see below). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10035 | int32_t b64lookup(unsigned char ch) { return b64table[ch]; } |
| 10036 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10037 | /* Returns true if the given character is not a valid base64 character or |
| 10038 | * padding. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10039 | bool nonbase64(unsigned char ch) { return b64lookup(ch) == -1 && ch != '='; } |
| 10040 | |
| 10041 | static bool base64_push(upb_json_parser *p, upb_selector_t sel, const char *ptr, |
| 10042 | size_t len) { |
| 10043 | const char *limit = ptr + len; |
| 10044 | for (; ptr < limit; ptr += 4) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10045 | uint32_t val; |
| 10046 | char output[3]; |
| 10047 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10048 | if (limit - ptr < 4) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10049 | upb_status_seterrf(&p->status, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10050 | "Base64 input for bytes field not a multiple of 4: %s", |
| 10051 | upb_fielddef_name(p->top->f)); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10052 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10053 | return false; |
| 10054 | } |
| 10055 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10056 | val = b64lookup(ptr[0]) << 18 | |
| 10057 | b64lookup(ptr[1]) << 12 | |
| 10058 | b64lookup(ptr[2]) << 6 | |
| 10059 | b64lookup(ptr[3]); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10060 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10061 | /* Test the upper bit; returns true if any of the characters returned -1. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10062 | if (val & 0x80000000) { |
| 10063 | goto otherchar; |
| 10064 | } |
| 10065 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10066 | output[0] = val >> 16; |
| 10067 | output[1] = (val >> 8) & 0xff; |
| 10068 | output[2] = val & 0xff; |
| 10069 | upb_sink_putstring(&p->top->sink, sel, output, 3, NULL); |
| 10070 | } |
| 10071 | return true; |
| 10072 | |
| 10073 | otherchar: |
| 10074 | if (nonbase64(ptr[0]) || nonbase64(ptr[1]) || nonbase64(ptr[2]) || |
| 10075 | nonbase64(ptr[3]) ) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10076 | upb_status_seterrf(&p->status, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10077 | "Non-base64 characters in bytes field: %s", |
| 10078 | upb_fielddef_name(p->top->f)); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10079 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10080 | return false; |
| 10081 | } if (ptr[2] == '=') { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10082 | uint32_t val; |
| 10083 | char output; |
| 10084 | |
| 10085 | /* Last group contains only two input bytes, one output byte. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10086 | if (ptr[0] == '=' || ptr[1] == '=' || ptr[3] != '=') { |
| 10087 | goto badpadding; |
| 10088 | } |
| 10089 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10090 | val = b64lookup(ptr[0]) << 18 | |
| 10091 | b64lookup(ptr[1]) << 12; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10092 | |
| 10093 | assert(!(val & 0x80000000)); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10094 | output = val >> 16; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10095 | upb_sink_putstring(&p->top->sink, sel, &output, 1, NULL); |
| 10096 | return true; |
| 10097 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10098 | uint32_t val; |
| 10099 | char output[2]; |
| 10100 | |
| 10101 | /* Last group contains only three input bytes, two output bytes. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10102 | if (ptr[0] == '=' || ptr[1] == '=' || ptr[2] == '=') { |
| 10103 | goto badpadding; |
| 10104 | } |
| 10105 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10106 | val = b64lookup(ptr[0]) << 18 | |
| 10107 | b64lookup(ptr[1]) << 12 | |
| 10108 | b64lookup(ptr[2]) << 6; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10109 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10110 | output[0] = val >> 16; |
| 10111 | output[1] = (val >> 8) & 0xff; |
| 10112 | upb_sink_putstring(&p->top->sink, sel, output, 2, NULL); |
| 10113 | return true; |
| 10114 | } |
| 10115 | |
| 10116 | badpadding: |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10117 | upb_status_seterrf(&p->status, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10118 | "Incorrect base64 padding for field: %s (%.*s)", |
| 10119 | upb_fielddef_name(p->top->f), |
| 10120 | 4, ptr); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10121 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10122 | return false; |
| 10123 | } |
| 10124 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10125 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10126 | /* Accumulate buffer **********************************************************/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10127 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10128 | /* Functionality for accumulating a buffer. |
| 10129 | * |
| 10130 | * Some parts of the parser need an entire value as a contiguous string. For |
| 10131 | * example, to look up a member name in a hash table, or to turn a string into |
| 10132 | * a number, the relevant library routines need the input string to be in |
| 10133 | * contiguous memory, even if the value spanned two or more buffers in the |
| 10134 | * input. These routines handle that. |
| 10135 | * |
| 10136 | * In the common case we can just point to the input buffer to get this |
| 10137 | * contiguous string and avoid any actual copy. So we optimistically begin |
| 10138 | * this way. But there are a few cases where we must instead copy into a |
| 10139 | * separate buffer: |
| 10140 | * |
| 10141 | * 1. The string was not contiguous in the input (it spanned buffers). |
| 10142 | * |
| 10143 | * 2. The string included escape sequences that need to be interpreted to get |
| 10144 | * the true value in a contiguous buffer. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10145 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10146 | static void assert_accumulate_empty(upb_json_parser *p) { |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 10147 | UPB_UNUSED(p); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10148 | assert(p->accumulated == NULL); |
| 10149 | assert(p->accumulated_len == 0); |
| 10150 | } |
| 10151 | |
| 10152 | static void accumulate_clear(upb_json_parser *p) { |
| 10153 | p->accumulated = NULL; |
| 10154 | p->accumulated_len = 0; |
| 10155 | } |
| 10156 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10157 | /* Used internally by accumulate_append(). */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10158 | static bool accumulate_realloc(upb_json_parser *p, size_t need) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10159 | void *mem; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 10160 | size_t old_size = p->accumulate_buf_size; |
| 10161 | size_t new_size = UPB_MAX(old_size, 128); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10162 | while (new_size < need) { |
| 10163 | new_size = saturating_multiply(new_size, 2); |
| 10164 | } |
| 10165 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10166 | mem = upb_env_realloc(p->env, p->accumulate_buf, old_size, new_size); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10167 | if (!mem) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10168 | upb_status_seterrmsg(&p->status, "Out of memory allocating buffer."); |
| 10169 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10170 | return false; |
| 10171 | } |
| 10172 | |
| 10173 | p->accumulate_buf = mem; |
| 10174 | p->accumulate_buf_size = new_size; |
| 10175 | return true; |
| 10176 | } |
| 10177 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10178 | /* Logically appends the given data to the append buffer. |
| 10179 | * If "can_alias" is true, we will try to avoid actually copying, but the buffer |
| 10180 | * must be valid until the next accumulate_append() call (if any). */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10181 | static bool accumulate_append(upb_json_parser *p, const char *buf, size_t len, |
| 10182 | bool can_alias) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10183 | size_t need; |
| 10184 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10185 | if (!p->accumulated && can_alias) { |
| 10186 | p->accumulated = buf; |
| 10187 | p->accumulated_len = len; |
| 10188 | return true; |
| 10189 | } |
| 10190 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10191 | if (!checked_add(p->accumulated_len, len, &need)) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10192 | upb_status_seterrmsg(&p->status, "Integer overflow."); |
| 10193 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10194 | return false; |
| 10195 | } |
| 10196 | |
| 10197 | if (need > p->accumulate_buf_size && !accumulate_realloc(p, need)) { |
| 10198 | return false; |
| 10199 | } |
| 10200 | |
| 10201 | if (p->accumulated != p->accumulate_buf) { |
| 10202 | memcpy(p->accumulate_buf, p->accumulated, p->accumulated_len); |
| 10203 | p->accumulated = p->accumulate_buf; |
| 10204 | } |
| 10205 | |
| 10206 | memcpy(p->accumulate_buf + p->accumulated_len, buf, len); |
| 10207 | p->accumulated_len += len; |
| 10208 | return true; |
| 10209 | } |
| 10210 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10211 | /* Returns a pointer to the data accumulated since the last accumulate_clear() |
| 10212 | * call, and writes the length to *len. This with point either to the input |
| 10213 | * buffer or a temporary accumulate buffer. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10214 | static const char *accumulate_getptr(upb_json_parser *p, size_t *len) { |
| 10215 | assert(p->accumulated); |
| 10216 | *len = p->accumulated_len; |
| 10217 | return p->accumulated; |
| 10218 | } |
| 10219 | |
| 10220 | |
| 10221 | /* Mult-part text data ********************************************************/ |
| 10222 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10223 | /* When we have text data in the input, it can often come in multiple segments. |
| 10224 | * For example, there may be some raw string data followed by an escape |
| 10225 | * sequence. The two segments are processed with different logic. Also buffer |
| 10226 | * seams in the input can cause multiple segments. |
| 10227 | * |
| 10228 | * As we see segments, there are two main cases for how we want to process them: |
| 10229 | * |
| 10230 | * 1. we want to push the captured input directly to string handlers. |
| 10231 | * |
| 10232 | * 2. we need to accumulate all the parts into a contiguous buffer for further |
| 10233 | * processing (field name lookup, string->number conversion, etc). */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10234 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10235 | /* This is the set of states for p->multipart_state. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10236 | enum { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10237 | /* We are not currently processing multipart data. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10238 | MULTIPART_INACTIVE = 0, |
| 10239 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10240 | /* We are processing multipart data by accumulating it into a contiguous |
| 10241 | * buffer. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10242 | MULTIPART_ACCUMULATE = 1, |
| 10243 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10244 | /* We are processing multipart data by pushing each part directly to the |
| 10245 | * current string handlers. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10246 | MULTIPART_PUSHEAGERLY = 2 |
| 10247 | }; |
| 10248 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10249 | /* Start a multi-part text value where we accumulate the data for processing at |
| 10250 | * the end. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10251 | static void multipart_startaccum(upb_json_parser *p) { |
| 10252 | assert_accumulate_empty(p); |
| 10253 | assert(p->multipart_state == MULTIPART_INACTIVE); |
| 10254 | p->multipart_state = MULTIPART_ACCUMULATE; |
| 10255 | } |
| 10256 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10257 | /* Start a multi-part text value where we immediately push text data to a string |
| 10258 | * value with the given selector. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10259 | static void multipart_start(upb_json_parser *p, upb_selector_t sel) { |
| 10260 | assert_accumulate_empty(p); |
| 10261 | assert(p->multipart_state == MULTIPART_INACTIVE); |
| 10262 | p->multipart_state = MULTIPART_PUSHEAGERLY; |
| 10263 | p->string_selector = sel; |
| 10264 | } |
| 10265 | |
| 10266 | static bool multipart_text(upb_json_parser *p, const char *buf, size_t len, |
| 10267 | bool can_alias) { |
| 10268 | switch (p->multipart_state) { |
| 10269 | case MULTIPART_INACTIVE: |
| 10270 | upb_status_seterrmsg( |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10271 | &p->status, "Internal error: unexpected state MULTIPART_INACTIVE"); |
| 10272 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10273 | return false; |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10274 | |
| 10275 | case MULTIPART_ACCUMULATE: |
| 10276 | if (!accumulate_append(p, buf, len, can_alias)) { |
| 10277 | return false; |
| 10278 | } |
| 10279 | break; |
| 10280 | |
| 10281 | case MULTIPART_PUSHEAGERLY: { |
| 10282 | const upb_bufhandle *handle = can_alias ? p->handle : NULL; |
| 10283 | upb_sink_putstring(&p->top->sink, p->string_selector, buf, len, handle); |
| 10284 | break; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10285 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10286 | } |
| 10287 | |
| 10288 | return true; |
| 10289 | } |
| 10290 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10291 | /* Note: this invalidates the accumulate buffer! Call only after reading its |
| 10292 | * contents. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10293 | static void multipart_end(upb_json_parser *p) { |
| 10294 | assert(p->multipart_state != MULTIPART_INACTIVE); |
| 10295 | p->multipart_state = MULTIPART_INACTIVE; |
| 10296 | accumulate_clear(p); |
| 10297 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10298 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10299 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10300 | /* Input capture **************************************************************/ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10301 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10302 | /* Functionality for capturing a region of the input as text. Gracefully |
| 10303 | * handles the case where a buffer seam occurs in the middle of the captured |
| 10304 | * region. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10305 | |
| 10306 | static void capture_begin(upb_json_parser *p, const char *ptr) { |
| 10307 | assert(p->multipart_state != MULTIPART_INACTIVE); |
| 10308 | assert(p->capture == NULL); |
| 10309 | p->capture = ptr; |
| 10310 | } |
| 10311 | |
| 10312 | static bool capture_end(upb_json_parser *p, const char *ptr) { |
| 10313 | assert(p->capture); |
| 10314 | if (multipart_text(p, p->capture, ptr - p->capture, true)) { |
| 10315 | p->capture = NULL; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10316 | return true; |
| 10317 | } else { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10318 | return false; |
| 10319 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10320 | } |
| 10321 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10322 | /* This is called at the end of each input buffer (ie. when we have hit a |
| 10323 | * buffer seam). If we are in the middle of capturing the input, this |
| 10324 | * processes the unprocessed capture region. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10325 | static void capture_suspend(upb_json_parser *p, const char **ptr) { |
| 10326 | if (!p->capture) return; |
| 10327 | |
| 10328 | if (multipart_text(p, p->capture, *ptr - p->capture, false)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10329 | /* We use this as a signal that we were in the middle of capturing, and |
| 10330 | * that capturing should resume at the beginning of the next buffer. |
| 10331 | * |
| 10332 | * We can't use *ptr here, because we have no guarantee that this pointer |
| 10333 | * will be valid when we resume (if the underlying memory is freed, then |
| 10334 | * using the pointer at all, even to compare to NULL, is likely undefined |
| 10335 | * behavior). */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10336 | p->capture = &suspend_capture; |
| 10337 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10338 | /* Need to back up the pointer to the beginning of the capture, since |
| 10339 | * we were not able to actually preserve it. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10340 | *ptr = p->capture; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10341 | } |
| 10342 | } |
| 10343 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10344 | static void capture_resume(upb_json_parser *p, const char *ptr) { |
| 10345 | if (p->capture) { |
| 10346 | assert(p->capture == &suspend_capture); |
| 10347 | p->capture = ptr; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10348 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10349 | } |
| 10350 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10351 | |
| 10352 | /* Callbacks from the parser **************************************************/ |
| 10353 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10354 | /* These are the functions called directly from the parser itself. |
| 10355 | * We define these in the same order as their declarations in the parser. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10356 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10357 | static char escape_char(char in) { |
| 10358 | switch (in) { |
| 10359 | case 'r': return '\r'; |
| 10360 | case 't': return '\t'; |
| 10361 | case 'n': return '\n'; |
| 10362 | case 'f': return '\f'; |
| 10363 | case 'b': return '\b'; |
| 10364 | case '/': return '/'; |
| 10365 | case '"': return '"'; |
| 10366 | case '\\': return '\\'; |
| 10367 | default: |
| 10368 | assert(0); |
| 10369 | return 'x'; |
| 10370 | } |
| 10371 | } |
| 10372 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10373 | static bool escape(upb_json_parser *p, const char *ptr) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10374 | char ch = escape_char(*ptr); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10375 | return multipart_text(p, &ch, 1, false); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10376 | } |
| 10377 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10378 | static void start_hex(upb_json_parser *p) { |
| 10379 | p->digit = 0; |
| 10380 | } |
| 10381 | |
| 10382 | static void hexdigit(upb_json_parser *p, const char *ptr) { |
| 10383 | char ch = *ptr; |
| 10384 | |
| 10385 | p->digit <<= 4; |
| 10386 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10387 | if (ch >= '0' && ch <= '9') { |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10388 | p->digit += (ch - '0'); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10389 | } else if (ch >= 'a' && ch <= 'f') { |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10390 | p->digit += ((ch - 'a') + 10); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10391 | } else { |
| 10392 | assert(ch >= 'A' && ch <= 'F'); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10393 | p->digit += ((ch - 'A') + 10); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10394 | } |
| 10395 | } |
| 10396 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10397 | static bool end_hex(upb_json_parser *p) { |
| 10398 | uint32_t codepoint = p->digit; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10399 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10400 | /* emit the codepoint as UTF-8. */ |
| 10401 | char utf8[3]; /* support \u0000 -- \uFFFF -- need only three bytes. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10402 | int length = 0; |
| 10403 | if (codepoint <= 0x7F) { |
| 10404 | utf8[0] = codepoint; |
| 10405 | length = 1; |
| 10406 | } else if (codepoint <= 0x07FF) { |
| 10407 | utf8[1] = (codepoint & 0x3F) | 0x80; |
| 10408 | codepoint >>= 6; |
| 10409 | utf8[0] = (codepoint & 0x1F) | 0xC0; |
| 10410 | length = 2; |
| 10411 | } else /* codepoint <= 0xFFFF */ { |
| 10412 | utf8[2] = (codepoint & 0x3F) | 0x80; |
| 10413 | codepoint >>= 6; |
| 10414 | utf8[1] = (codepoint & 0x3F) | 0x80; |
| 10415 | codepoint >>= 6; |
| 10416 | utf8[0] = (codepoint & 0x0F) | 0xE0; |
| 10417 | length = 3; |
| 10418 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10419 | /* TODO(haberman): Handle high surrogates: if codepoint is a high surrogate |
| 10420 | * we have to wait for the next escape to get the full code point). */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10421 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10422 | return multipart_text(p, utf8, length, false); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10423 | } |
| 10424 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10425 | static void start_text(upb_json_parser *p, const char *ptr) { |
| 10426 | capture_begin(p, ptr); |
| 10427 | } |
| 10428 | |
| 10429 | static bool end_text(upb_json_parser *p, const char *ptr) { |
| 10430 | return capture_end(p, ptr); |
| 10431 | } |
| 10432 | |
| 10433 | static void start_number(upb_json_parser *p, const char *ptr) { |
| 10434 | multipart_startaccum(p); |
| 10435 | capture_begin(p, ptr); |
| 10436 | } |
| 10437 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10438 | static bool parse_number(upb_json_parser *p); |
| 10439 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10440 | static bool end_number(upb_json_parser *p, const char *ptr) { |
| 10441 | if (!capture_end(p, ptr)) { |
| 10442 | return false; |
| 10443 | } |
| 10444 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10445 | return parse_number(p); |
| 10446 | } |
| 10447 | |
| 10448 | static bool parse_number(upb_json_parser *p) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10449 | size_t len; |
| 10450 | const char *buf; |
| 10451 | const char *myend; |
| 10452 | char *end; |
| 10453 | |
| 10454 | /* strtol() and friends unfortunately do not support specifying the length of |
| 10455 | * the input string, so we need to force a copy into a NULL-terminated buffer. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10456 | if (!multipart_text(p, "\0", 1, false)) { |
| 10457 | return false; |
| 10458 | } |
| 10459 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10460 | buf = accumulate_getptr(p, &len); |
| 10461 | myend = buf + len - 1; /* One for NULL. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10462 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10463 | /* XXX: We are using strtol to parse integers, but this is wrong as even |
| 10464 | * integers can be represented as 1e6 (for example), which strtol can't |
| 10465 | * handle correctly. |
| 10466 | * |
| 10467 | * XXX: Also, we can't handle large integers properly because strto[u]ll |
| 10468 | * isn't in C89. |
| 10469 | * |
| 10470 | * XXX: Also, we don't properly check floats for overflow, since strtof |
| 10471 | * isn't in C89. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10472 | switch (upb_fielddef_type(p->top->f)) { |
| 10473 | case UPB_TYPE_ENUM: |
| 10474 | case UPB_TYPE_INT32: { |
| 10475 | long val = strtol(p->accumulated, &end, 0); |
| 10476 | if (val > INT32_MAX || val < INT32_MIN || errno == ERANGE || end != myend) |
| 10477 | goto err; |
| 10478 | else |
| 10479 | upb_sink_putint32(&p->top->sink, parser_getsel(p), val); |
| 10480 | break; |
| 10481 | } |
| 10482 | case UPB_TYPE_INT64: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10483 | long long val = strtol(p->accumulated, &end, 0); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10484 | if (val > INT64_MAX || val < INT64_MIN || errno == ERANGE || end != myend) |
| 10485 | goto err; |
| 10486 | else |
| 10487 | upb_sink_putint64(&p->top->sink, parser_getsel(p), val); |
| 10488 | break; |
| 10489 | } |
| 10490 | case UPB_TYPE_UINT32: { |
| 10491 | unsigned long val = strtoul(p->accumulated, &end, 0); |
| 10492 | if (val > UINT32_MAX || errno == ERANGE || end != myend) |
| 10493 | goto err; |
| 10494 | else |
| 10495 | upb_sink_putuint32(&p->top->sink, parser_getsel(p), val); |
| 10496 | break; |
| 10497 | } |
| 10498 | case UPB_TYPE_UINT64: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10499 | unsigned long long val = strtoul(p->accumulated, &end, 0); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10500 | if (val > UINT64_MAX || errno == ERANGE || end != myend) |
| 10501 | goto err; |
| 10502 | else |
| 10503 | upb_sink_putuint64(&p->top->sink, parser_getsel(p), val); |
| 10504 | break; |
| 10505 | } |
| 10506 | case UPB_TYPE_DOUBLE: { |
| 10507 | double val = strtod(p->accumulated, &end); |
| 10508 | if (errno == ERANGE || end != myend) |
| 10509 | goto err; |
| 10510 | else |
| 10511 | upb_sink_putdouble(&p->top->sink, parser_getsel(p), val); |
| 10512 | break; |
| 10513 | } |
| 10514 | case UPB_TYPE_FLOAT: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10515 | float val = strtod(p->accumulated, &end); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10516 | if (errno == ERANGE || end != myend) |
| 10517 | goto err; |
| 10518 | else |
| 10519 | upb_sink_putfloat(&p->top->sink, parser_getsel(p), val); |
| 10520 | break; |
| 10521 | } |
| 10522 | default: |
| 10523 | assert(false); |
| 10524 | } |
| 10525 | |
| 10526 | multipart_end(p); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10527 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10528 | return true; |
| 10529 | |
| 10530 | err: |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10531 | upb_status_seterrf(&p->status, "error parsing number: %s", buf); |
| 10532 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10533 | multipart_end(p); |
| 10534 | return false; |
| 10535 | } |
| 10536 | |
| 10537 | static bool parser_putbool(upb_json_parser *p, bool val) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10538 | bool ok; |
| 10539 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10540 | if (upb_fielddef_type(p->top->f) != UPB_TYPE_BOOL) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10541 | upb_status_seterrf(&p->status, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10542 | "Boolean value specified for non-bool field: %s", |
| 10543 | upb_fielddef_name(p->top->f)); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10544 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10545 | return false; |
| 10546 | } |
| 10547 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10548 | ok = upb_sink_putbool(&p->top->sink, parser_getsel(p), val); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10549 | UPB_ASSERT_VAR(ok, ok); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10550 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10551 | return true; |
| 10552 | } |
| 10553 | |
| 10554 | static bool start_stringval(upb_json_parser *p) { |
| 10555 | assert(p->top->f); |
| 10556 | |
| 10557 | if (upb_fielddef_isstring(p->top->f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10558 | upb_jsonparser_frame *inner; |
| 10559 | upb_selector_t sel; |
| 10560 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10561 | if (!check_stack(p)) return false; |
| 10562 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10563 | /* Start a new parser frame: parser frames correspond one-to-one with |
| 10564 | * handler frames, and string events occur in a sub-frame. */ |
| 10565 | inner = p->top + 1; |
| 10566 | sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSTR); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10567 | upb_sink_startstr(&p->top->sink, sel, 0, &inner->sink); |
| 10568 | inner->m = p->top->m; |
| 10569 | inner->f = p->top->f; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10570 | inner->name_table = NULL; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10571 | inner->is_map = false; |
| 10572 | inner->is_mapentry = false; |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10573 | p->top = inner; |
| 10574 | |
| 10575 | if (upb_fielddef_type(p->top->f) == UPB_TYPE_STRING) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10576 | /* For STRING fields we push data directly to the handlers as it is |
| 10577 | * parsed. We don't do this yet for BYTES fields, because our base64 |
| 10578 | * decoder is not streaming. |
| 10579 | * |
| 10580 | * TODO(haberman): make base64 decoding streaming also. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10581 | multipart_start(p, getsel_for_handlertype(p, UPB_HANDLER_STRING)); |
| 10582 | return true; |
| 10583 | } else { |
| 10584 | multipart_startaccum(p); |
| 10585 | return true; |
| 10586 | } |
| 10587 | } else if (upb_fielddef_type(p->top->f) == UPB_TYPE_ENUM) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10588 | /* No need to push a frame -- symbolic enum names in quotes remain in the |
| 10589 | * current parser frame. |
| 10590 | * |
| 10591 | * Enum string values must accumulate so we can look up the value in a table |
| 10592 | * once it is complete. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10593 | multipart_startaccum(p); |
| 10594 | return true; |
| 10595 | } else { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10596 | upb_status_seterrf(&p->status, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10597 | "String specified for non-string/non-enum field: %s", |
| 10598 | upb_fielddef_name(p->top->f)); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10599 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10600 | return false; |
| 10601 | } |
| 10602 | } |
| 10603 | |
| 10604 | static bool end_stringval(upb_json_parser *p) { |
| 10605 | bool ok = true; |
| 10606 | |
| 10607 | switch (upb_fielddef_type(p->top->f)) { |
| 10608 | case UPB_TYPE_BYTES: |
| 10609 | if (!base64_push(p, getsel_for_handlertype(p, UPB_HANDLER_STRING), |
| 10610 | p->accumulated, p->accumulated_len)) { |
| 10611 | return false; |
| 10612 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10613 | /* Fall through. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10614 | |
| 10615 | case UPB_TYPE_STRING: { |
| 10616 | upb_selector_t sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSTR); |
| 10617 | upb_sink_endstr(&p->top->sink, sel); |
| 10618 | p->top--; |
| 10619 | break; |
| 10620 | } |
| 10621 | |
| 10622 | case UPB_TYPE_ENUM: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10623 | /* Resolve enum symbolic name to integer value. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10624 | const upb_enumdef *enumdef = |
| 10625 | (const upb_enumdef*)upb_fielddef_subdef(p->top->f); |
| 10626 | |
| 10627 | size_t len; |
| 10628 | const char *buf = accumulate_getptr(p, &len); |
| 10629 | |
| 10630 | int32_t int_val = 0; |
| 10631 | ok = upb_enumdef_ntoi(enumdef, buf, len, &int_val); |
| 10632 | |
| 10633 | if (ok) { |
| 10634 | upb_selector_t sel = parser_getsel(p); |
| 10635 | upb_sink_putint32(&p->top->sink, sel, int_val); |
| 10636 | } else { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10637 | upb_status_seterrf(&p->status, "Enum value unknown: '%.*s'", len, buf); |
| 10638 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10639 | } |
| 10640 | |
| 10641 | break; |
| 10642 | } |
| 10643 | |
| 10644 | default: |
| 10645 | assert(false); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10646 | upb_status_seterrmsg(&p->status, "Internal error in JSON decoder"); |
| 10647 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10648 | ok = false; |
| 10649 | break; |
| 10650 | } |
| 10651 | |
| 10652 | multipart_end(p); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10653 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10654 | return ok; |
| 10655 | } |
| 10656 | |
| 10657 | static void start_member(upb_json_parser *p) { |
| 10658 | assert(!p->top->f); |
| 10659 | multipart_startaccum(p); |
| 10660 | } |
| 10661 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10662 | /* Helper: invoked during parse_mapentry() to emit the mapentry message's key |
| 10663 | * field based on the current contents of the accumulate buffer. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10664 | static bool parse_mapentry_key(upb_json_parser *p) { |
| 10665 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10666 | size_t len; |
| 10667 | const char *buf = accumulate_getptr(p, &len); |
| 10668 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10669 | /* Emit the key field. We do a bit of ad-hoc parsing here because the |
| 10670 | * parser state machine has already decided that this is a string field |
| 10671 | * name, and we are reinterpreting it as some arbitrary key type. In |
| 10672 | * particular, integer and bool keys are quoted, so we need to parse the |
| 10673 | * quoted string contents here. */ |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10674 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10675 | p->top->f = upb_msgdef_itof(p->top->m, UPB_MAPENTRY_KEY); |
| 10676 | if (p->top->f == NULL) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10677 | upb_status_seterrmsg(&p->status, "mapentry message has no key"); |
| 10678 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10679 | return false; |
| 10680 | } |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10681 | switch (upb_fielddef_type(p->top->f)) { |
| 10682 | case UPB_TYPE_INT32: |
| 10683 | case UPB_TYPE_INT64: |
| 10684 | case UPB_TYPE_UINT32: |
| 10685 | case UPB_TYPE_UINT64: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10686 | /* Invoke end_number. The accum buffer has the number's text already. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10687 | if (!parse_number(p)) { |
| 10688 | return false; |
| 10689 | } |
| 10690 | break; |
| 10691 | case UPB_TYPE_BOOL: |
| 10692 | if (len == 4 && !strncmp(buf, "true", 4)) { |
| 10693 | if (!parser_putbool(p, true)) { |
| 10694 | return false; |
| 10695 | } |
| 10696 | } else if (len == 5 && !strncmp(buf, "false", 5)) { |
| 10697 | if (!parser_putbool(p, false)) { |
| 10698 | return false; |
| 10699 | } |
| 10700 | } else { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10701 | upb_status_seterrmsg(&p->status, |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10702 | "Map bool key not 'true' or 'false'"); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10703 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10704 | return false; |
| 10705 | } |
| 10706 | multipart_end(p); |
| 10707 | break; |
| 10708 | case UPB_TYPE_STRING: |
| 10709 | case UPB_TYPE_BYTES: { |
| 10710 | upb_sink subsink; |
| 10711 | upb_selector_t sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSTR); |
| 10712 | upb_sink_startstr(&p->top->sink, sel, len, &subsink); |
| 10713 | sel = getsel_for_handlertype(p, UPB_HANDLER_STRING); |
| 10714 | upb_sink_putstring(&subsink, sel, buf, len, NULL); |
| 10715 | sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSTR); |
| 10716 | upb_sink_endstr(&subsink, sel); |
| 10717 | multipart_end(p); |
| 10718 | break; |
| 10719 | } |
| 10720 | default: |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10721 | upb_status_seterrmsg(&p->status, "Invalid field type for map key"); |
| 10722 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10723 | return false; |
| 10724 | } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10725 | |
| 10726 | return true; |
| 10727 | } |
| 10728 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10729 | /* Helper: emit one map entry (as a submessage in the map field sequence). This |
| 10730 | * is invoked from end_membername(), at the end of the map entry's key string, |
| 10731 | * with the map key in the accumulate buffer. It parses the key from that |
| 10732 | * buffer, emits the handler calls to start the mapentry submessage (setting up |
| 10733 | * its subframe in the process), and sets up state in the subframe so that the |
| 10734 | * value parser (invoked next) will emit the mapentry's value field and then |
| 10735 | * end the mapentry message. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10736 | |
| 10737 | static bool handle_mapentry(upb_json_parser *p) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10738 | const upb_fielddef *mapfield; |
| 10739 | const upb_msgdef *mapentrymsg; |
| 10740 | upb_jsonparser_frame *inner; |
| 10741 | upb_selector_t sel; |
| 10742 | |
| 10743 | /* Map entry: p->top->sink is the seq frame, so we need to start a frame |
| 10744 | * for the mapentry itself, and then set |f| in that frame so that the map |
| 10745 | * value field is parsed, and also set a flag to end the frame after the |
| 10746 | * map-entry value is parsed. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10747 | if (!check_stack(p)) return false; |
| 10748 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10749 | mapfield = p->top->mapfield; |
| 10750 | mapentrymsg = upb_fielddef_msgsubdef(mapfield); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10751 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10752 | inner = p->top + 1; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10753 | p->top->f = mapfield; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10754 | sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSUBMSG); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10755 | upb_sink_startsubmsg(&p->top->sink, sel, &inner->sink); |
| 10756 | inner->m = mapentrymsg; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10757 | inner->name_table = NULL; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10758 | inner->mapfield = mapfield; |
| 10759 | inner->is_map = false; |
| 10760 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10761 | /* Don't set this to true *yet* -- we reuse parsing handlers below to push |
| 10762 | * the key field value to the sink, and these handlers will pop the frame |
| 10763 | * if they see is_mapentry (when invoked by the parser state machine, they |
| 10764 | * would have just seen the map-entry value, not key). */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10765 | inner->is_mapentry = false; |
| 10766 | p->top = inner; |
| 10767 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10768 | /* send STARTMSG in submsg frame. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10769 | upb_sink_startmsg(&p->top->sink); |
| 10770 | |
| 10771 | parse_mapentry_key(p); |
| 10772 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10773 | /* Set up the value field to receive the map-entry value. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10774 | p->top->f = upb_msgdef_itof(p->top->m, UPB_MAPENTRY_VALUE); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10775 | p->top->is_mapentry = true; /* set up to pop frame after value is parsed. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10776 | p->top->mapfield = mapfield; |
| 10777 | if (p->top->f == NULL) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10778 | upb_status_seterrmsg(&p->status, "mapentry message has no value"); |
| 10779 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10780 | return false; |
| 10781 | } |
| 10782 | |
| 10783 | return true; |
| 10784 | } |
| 10785 | |
| 10786 | static bool end_membername(upb_json_parser *p) { |
| 10787 | assert(!p->top->f); |
| 10788 | |
| 10789 | if (p->top->is_map) { |
| 10790 | return handle_mapentry(p); |
| 10791 | } else { |
| 10792 | size_t len; |
| 10793 | const char *buf = accumulate_getptr(p, &len); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10794 | upb_value v; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10795 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10796 | if (upb_strtable_lookup2(p->top->name_table, buf, len, &v)) { |
| 10797 | p->top->f = upb_value_getconstptr(v); |
| 10798 | multipart_end(p); |
| 10799 | |
| 10800 | return true; |
| 10801 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10802 | /* TODO(haberman): Ignore unknown fields if requested/configured to do |
| 10803 | * so. */ |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10804 | upb_status_seterrf(&p->status, "No such field: %.*s\n", (int)len, buf); |
| 10805 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10806 | return false; |
| 10807 | } |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10808 | } |
| 10809 | } |
| 10810 | |
| 10811 | static void end_member(upb_json_parser *p) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10812 | /* If we just parsed a map-entry value, end that frame too. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10813 | if (p->top->is_mapentry) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10814 | upb_status s = UPB_STATUS_INIT; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10815 | upb_selector_t sel; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10816 | bool ok; |
| 10817 | const upb_fielddef *mapfield; |
| 10818 | |
| 10819 | assert(p->top > p->stack); |
| 10820 | /* send ENDMSG on submsg. */ |
| 10821 | upb_sink_endmsg(&p->top->sink, &s); |
| 10822 | mapfield = p->top->mapfield; |
| 10823 | |
| 10824 | /* send ENDSUBMSG in repeated-field-of-mapentries frame. */ |
| 10825 | p->top--; |
| 10826 | ok = upb_handlers_getselector(mapfield, UPB_HANDLER_ENDSUBMSG, &sel); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10827 | UPB_ASSERT_VAR(ok, ok); |
| 10828 | upb_sink_endsubmsg(&p->top->sink, sel); |
| 10829 | } |
| 10830 | |
| 10831 | p->top->f = NULL; |
| 10832 | } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10833 | |
| 10834 | static bool start_subobject(upb_json_parser *p) { |
| 10835 | assert(p->top->f); |
| 10836 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10837 | if (upb_fielddef_ismap(p->top->f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10838 | upb_jsonparser_frame *inner; |
| 10839 | upb_selector_t sel; |
| 10840 | |
| 10841 | /* Beginning of a map. Start a new parser frame in a repeated-field |
| 10842 | * context. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10843 | if (!check_stack(p)) return false; |
| 10844 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10845 | inner = p->top + 1; |
| 10846 | sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSEQ); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10847 | upb_sink_startseq(&p->top->sink, sel, &inner->sink); |
| 10848 | inner->m = upb_fielddef_msgsubdef(p->top->f); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10849 | inner->name_table = NULL; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10850 | inner->mapfield = p->top->f; |
| 10851 | inner->f = NULL; |
| 10852 | inner->is_map = true; |
| 10853 | inner->is_mapentry = false; |
| 10854 | p->top = inner; |
| 10855 | |
| 10856 | return true; |
| 10857 | } else if (upb_fielddef_issubmsg(p->top->f)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10858 | upb_jsonparser_frame *inner; |
| 10859 | upb_selector_t sel; |
| 10860 | |
| 10861 | /* Beginning of a subobject. Start a new parser frame in the submsg |
| 10862 | * context. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10863 | if (!check_stack(p)) return false; |
| 10864 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10865 | inner = p->top + 1; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10866 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10867 | sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSUBMSG); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10868 | upb_sink_startsubmsg(&p->top->sink, sel, &inner->sink); |
| 10869 | inner->m = upb_fielddef_msgsubdef(p->top->f); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10870 | set_name_table(p, inner); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10871 | inner->f = NULL; |
| 10872 | inner->is_map = false; |
| 10873 | inner->is_mapentry = false; |
| 10874 | p->top = inner; |
| 10875 | |
| 10876 | return true; |
| 10877 | } else { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10878 | upb_status_seterrf(&p->status, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10879 | "Object specified for non-message/group field: %s", |
| 10880 | upb_fielddef_name(p->top->f)); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10881 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10882 | return false; |
| 10883 | } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10884 | } |
| 10885 | |
| 10886 | static void end_subobject(upb_json_parser *p) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10887 | if (p->top->is_map) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10888 | upb_selector_t sel; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10889 | p->top--; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10890 | sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSEQ); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10891 | upb_sink_endseq(&p->top->sink, sel); |
| 10892 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10893 | upb_selector_t sel; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10894 | p->top--; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10895 | sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSUBMSG); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10896 | upb_sink_endsubmsg(&p->top->sink, sel); |
| 10897 | } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10898 | } |
| 10899 | |
| 10900 | static bool start_array(upb_json_parser *p) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10901 | upb_jsonparser_frame *inner; |
| 10902 | upb_selector_t sel; |
| 10903 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10904 | assert(p->top->f); |
| 10905 | |
| 10906 | if (!upb_fielddef_isseq(p->top->f)) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10907 | upb_status_seterrf(&p->status, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10908 | "Array specified for non-repeated field: %s", |
| 10909 | upb_fielddef_name(p->top->f)); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10910 | upb_env_reporterror(p->env, &p->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10911 | return false; |
| 10912 | } |
| 10913 | |
| 10914 | if (!check_stack(p)) return false; |
| 10915 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10916 | inner = p->top + 1; |
| 10917 | sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSEQ); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10918 | upb_sink_startseq(&p->top->sink, sel, &inner->sink); |
| 10919 | inner->m = p->top->m; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10920 | inner->name_table = NULL; |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10921 | inner->f = p->top->f; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10922 | inner->is_map = false; |
| 10923 | inner->is_mapentry = false; |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10924 | p->top = inner; |
| 10925 | |
| 10926 | return true; |
| 10927 | } |
| 10928 | |
| 10929 | static void end_array(upb_json_parser *p) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10930 | upb_selector_t sel; |
| 10931 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10932 | assert(p->top > p->stack); |
| 10933 | |
| 10934 | p->top--; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10935 | sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSEQ); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10936 | upb_sink_endseq(&p->top->sink, sel); |
| 10937 | } |
| 10938 | |
| 10939 | static void start_object(upb_json_parser *p) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10940 | if (!p->top->is_map) { |
| 10941 | upb_sink_startmsg(&p->top->sink); |
| 10942 | } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10943 | } |
| 10944 | |
| 10945 | static void end_object(upb_json_parser *p) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10946 | if (!p->top->is_map) { |
| 10947 | upb_status status; |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10948 | upb_status_clear(&status); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10949 | upb_sink_endmsg(&p->top->sink, &status); |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 10950 | if (!upb_ok(&status)) { |
| 10951 | upb_env_reporterror(p->env, &status); |
| 10952 | } |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 10953 | } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10954 | } |
| 10955 | |
| 10956 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10957 | #define CHECK_RETURN_TOP(x) if (!(x)) goto error |
| 10958 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10959 | |
| 10960 | /* The actual parser **********************************************************/ |
| 10961 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 10962 | /* What follows is the Ragel parser itself. The language is specified in Ragel |
| 10963 | * and the actions call our C functions above. |
| 10964 | * |
| 10965 | * Ragel has an extensive set of functionality, and we use only a small part of |
| 10966 | * it. There are many action types but we only use a few: |
| 10967 | * |
| 10968 | * ">" -- transition into a machine |
| 10969 | * "%" -- transition out of a machine |
| 10970 | * "@" -- transition into a final state of a machine. |
| 10971 | * |
| 10972 | * "@" transitions are tricky because a machine can transition into a final |
| 10973 | * state repeatedly. But in some cases we know this can't happen, for example |
| 10974 | * a string which is delimited by a final '"' can only transition into its |
| 10975 | * final state once, when the closing '"' is seen. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10976 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10977 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10978 | #line 1246 "upb/json/parser.rl" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10979 | |
| 10980 | |
| 10981 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 10982 | #line 1158 "upb/json/parser.c" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10983 | static const char _json_actions[] = { |
| 10984 | 0, 1, 0, 1, 2, 1, 3, 1, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10985 | 5, 1, 6, 1, 7, 1, 8, 1, |
| 10986 | 10, 1, 12, 1, 13, 1, 14, 1, |
| 10987 | 15, 1, 16, 1, 17, 1, 21, 1, |
| 10988 | 25, 1, 27, 2, 3, 8, 2, 4, |
| 10989 | 5, 2, 6, 2, 2, 6, 8, 2, |
| 10990 | 11, 9, 2, 13, 15, 2, 14, 15, |
| 10991 | 2, 18, 1, 2, 19, 27, 2, 20, |
| 10992 | 9, 2, 22, 27, 2, 23, 27, 2, |
| 10993 | 24, 27, 2, 26, 27, 3, 14, 11, |
| 10994 | 9 |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 10995 | }; |
| 10996 | |
| 10997 | static const unsigned char _json_key_offsets[] = { |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 10998 | 0, 0, 4, 9, 14, 15, 19, 24, |
| 10999 | 29, 34, 38, 42, 45, 48, 50, 54, |
| 11000 | 58, 60, 62, 67, 69, 71, 80, 86, |
| 11001 | 92, 98, 104, 106, 115, 116, 116, 116, |
| 11002 | 121, 126, 131, 132, 133, 134, 135, 135, |
| 11003 | 136, 137, 138, 138, 139, 140, 141, 141, |
| 11004 | 146, 151, 152, 156, 161, 166, 171, 175, |
| 11005 | 175, 178, 178, 178 |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11006 | }; |
| 11007 | |
| 11008 | static const char _json_trans_keys[] = { |
| 11009 | 32, 123, 9, 13, 32, 34, 125, 9, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11010 | 13, 32, 34, 125, 9, 13, 34, 32, |
| 11011 | 58, 9, 13, 32, 93, 125, 9, 13, |
| 11012 | 32, 44, 125, 9, 13, 32, 44, 125, |
| 11013 | 9, 13, 32, 34, 9, 13, 45, 48, |
| 11014 | 49, 57, 48, 49, 57, 46, 69, 101, |
| 11015 | 48, 57, 69, 101, 48, 57, 43, 45, |
| 11016 | 48, 57, 48, 57, 48, 57, 46, 69, |
| 11017 | 101, 48, 57, 34, 92, 34, 92, 34, |
| 11018 | 47, 92, 98, 102, 110, 114, 116, 117, |
| 11019 | 48, 57, 65, 70, 97, 102, 48, 57, |
| 11020 | 65, 70, 97, 102, 48, 57, 65, 70, |
| 11021 | 97, 102, 48, 57, 65, 70, 97, 102, |
| 11022 | 34, 92, 34, 45, 91, 102, 110, 116, |
| 11023 | 123, 48, 57, 34, 32, 93, 125, 9, |
| 11024 | 13, 32, 44, 93, 9, 13, 32, 93, |
| 11025 | 125, 9, 13, 97, 108, 115, 101, 117, |
| 11026 | 108, 108, 114, 117, 101, 32, 34, 125, |
| 11027 | 9, 13, 32, 34, 125, 9, 13, 34, |
| 11028 | 32, 58, 9, 13, 32, 93, 125, 9, |
| 11029 | 13, 32, 44, 125, 9, 13, 32, 44, |
| 11030 | 125, 9, 13, 32, 34, 9, 13, 32, |
| 11031 | 9, 13, 0 |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11032 | }; |
| 11033 | |
| 11034 | static const char _json_single_lengths[] = { |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11035 | 0, 2, 3, 3, 1, 2, 3, 3, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11036 | 3, 2, 2, 1, 3, 0, 2, 2, |
| 11037 | 0, 0, 3, 2, 2, 9, 0, 0, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11038 | 0, 0, 2, 7, 1, 0, 0, 3, |
| 11039 | 3, 3, 1, 1, 1, 1, 0, 1, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11040 | 1, 1, 0, 1, 1, 1, 0, 3, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11041 | 3, 1, 2, 3, 3, 3, 2, 0, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11042 | 1, 0, 0, 0 |
| 11043 | }; |
| 11044 | |
| 11045 | static const char _json_range_lengths[] = { |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11046 | 0, 1, 1, 1, 0, 1, 1, 1, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11047 | 1, 1, 1, 1, 0, 1, 1, 1, |
| 11048 | 1, 1, 1, 0, 0, 0, 3, 3, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11049 | 3, 3, 0, 1, 0, 0, 0, 1, |
| 11050 | 1, 1, 0, 0, 0, 0, 0, 0, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11051 | 0, 0, 0, 0, 0, 0, 0, 1, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11052 | 1, 0, 1, 1, 1, 1, 1, 0, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11053 | 1, 0, 0, 0 |
| 11054 | }; |
| 11055 | |
| 11056 | static const short _json_index_offsets[] = { |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11057 | 0, 0, 4, 9, 14, 16, 20, 25, |
| 11058 | 30, 35, 39, 43, 46, 50, 52, 56, |
| 11059 | 60, 62, 64, 69, 72, 75, 85, 89, |
| 11060 | 93, 97, 101, 104, 113, 115, 116, 117, |
| 11061 | 122, 127, 132, 134, 136, 138, 140, 141, |
| 11062 | 143, 145, 147, 148, 150, 152, 154, 155, |
| 11063 | 160, 165, 167, 171, 176, 181, 186, 190, |
| 11064 | 191, 194, 195, 196 |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11065 | }; |
| 11066 | |
| 11067 | static const char _json_indicies[] = { |
| 11068 | 0, 2, 0, 1, 3, 4, 5, 3, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11069 | 1, 6, 7, 8, 6, 1, 9, 1, |
| 11070 | 10, 11, 10, 1, 11, 1, 1, 11, |
| 11071 | 12, 13, 14, 15, 13, 1, 16, 17, |
| 11072 | 8, 16, 1, 17, 7, 17, 1, 18, |
| 11073 | 19, 20, 1, 19, 20, 1, 22, 23, |
| 11074 | 23, 21, 24, 1, 23, 23, 24, 21, |
| 11075 | 25, 25, 26, 1, 26, 1, 26, 21, |
| 11076 | 22, 23, 23, 20, 21, 28, 29, 27, |
| 11077 | 31, 32, 30, 33, 33, 33, 33, 33, |
| 11078 | 33, 33, 33, 34, 1, 35, 35, 35, |
| 11079 | 1, 36, 36, 36, 1, 37, 37, 37, |
| 11080 | 1, 38, 38, 38, 1, 40, 41, 39, |
| 11081 | 42, 43, 44, 45, 46, 47, 48, 43, |
| 11082 | 1, 49, 1, 50, 51, 53, 54, 1, |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11083 | 53, 52, 55, 56, 54, 55, 1, 56, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11084 | 1, 1, 56, 52, 57, 1, 58, 1, |
| 11085 | 59, 1, 60, 1, 61, 62, 1, 63, |
| 11086 | 1, 64, 1, 65, 66, 1, 67, 1, |
| 11087 | 68, 1, 69, 70, 71, 72, 70, 1, |
| 11088 | 73, 74, 75, 73, 1, 76, 1, 77, |
| 11089 | 78, 77, 1, 78, 1, 1, 78, 79, |
| 11090 | 80, 81, 82, 80, 1, 83, 84, 75, |
| 11091 | 83, 1, 84, 74, 84, 1, 85, 86, |
| 11092 | 86, 1, 1, 1, 1, 0 |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11093 | }; |
| 11094 | |
| 11095 | static const char _json_trans_targs[] = { |
| 11096 | 1, 0, 2, 3, 4, 56, 3, 4, |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11097 | 56, 5, 5, 6, 7, 8, 9, 56, |
| 11098 | 8, 9, 11, 12, 18, 57, 13, 15, |
| 11099 | 14, 16, 17, 20, 58, 21, 20, 58, |
| 11100 | 21, 19, 22, 23, 24, 25, 26, 20, |
| 11101 | 58, 21, 28, 30, 31, 34, 39, 43, |
| 11102 | 47, 29, 59, 59, 32, 31, 29, 32, |
| 11103 | 33, 35, 36, 37, 38, 59, 40, 41, |
| 11104 | 42, 59, 44, 45, 46, 59, 48, 49, |
| 11105 | 55, 48, 49, 55, 50, 50, 51, 52, |
| 11106 | 53, 54, 55, 53, 54, 59, 56 |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11107 | }; |
| 11108 | |
| 11109 | static const char _json_trans_actions[] = { |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11110 | 0, 0, 0, 21, 77, 53, 0, 47, |
| 11111 | 23, 17, 0, 0, 15, 19, 19, 50, |
| 11112 | 0, 0, 0, 0, 0, 1, 0, 0, |
| 11113 | 0, 0, 0, 3, 13, 0, 0, 35, |
| 11114 | 5, 11, 0, 38, 7, 7, 7, 41, |
| 11115 | 44, 9, 62, 56, 25, 0, 0, 0, |
| 11116 | 31, 29, 33, 59, 15, 0, 27, 0, |
| 11117 | 0, 0, 0, 0, 0, 68, 0, 0, |
| 11118 | 0, 71, 0, 0, 0, 65, 21, 77, |
| 11119 | 53, 0, 47, 23, 17, 0, 0, 15, |
| 11120 | 19, 19, 50, 0, 0, 74, 0 |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11121 | }; |
| 11122 | |
| 11123 | static const int json_start = 1; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11124 | |
| 11125 | static const int json_en_number_machine = 10; |
| 11126 | static const int json_en_string_machine = 19; |
| 11127 | static const int json_en_value_machine = 27; |
| 11128 | static const int json_en_main = 1; |
| 11129 | |
| 11130 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11131 | #line 1249 "upb/json/parser.rl" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11132 | |
| 11133 | size_t parse(void *closure, const void *hd, const char *buf, size_t size, |
| 11134 | const upb_bufhandle *handle) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11135 | upb_json_parser *parser = closure; |
| 11136 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11137 | /* Variables used by Ragel's generated code. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11138 | int cs = parser->current_state; |
| 11139 | int *stack = parser->parser_stack; |
| 11140 | int top = parser->parser_top; |
| 11141 | |
| 11142 | const char *p = buf; |
| 11143 | const char *pe = buf + size; |
| 11144 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11145 | parser->handle = handle; |
| 11146 | |
| 11147 | UPB_UNUSED(hd); |
| 11148 | UPB_UNUSED(handle); |
| 11149 | |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11150 | capture_resume(parser, buf); |
| 11151 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11152 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11153 | #line 1329 "upb/json/parser.c" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11154 | { |
| 11155 | int _klen; |
| 11156 | unsigned int _trans; |
| 11157 | const char *_acts; |
| 11158 | unsigned int _nacts; |
| 11159 | const char *_keys; |
| 11160 | |
| 11161 | if ( p == pe ) |
| 11162 | goto _test_eof; |
| 11163 | if ( cs == 0 ) |
| 11164 | goto _out; |
| 11165 | _resume: |
| 11166 | _keys = _json_trans_keys + _json_key_offsets[cs]; |
| 11167 | _trans = _json_index_offsets[cs]; |
| 11168 | |
| 11169 | _klen = _json_single_lengths[cs]; |
| 11170 | if ( _klen > 0 ) { |
| 11171 | const char *_lower = _keys; |
| 11172 | const char *_mid; |
| 11173 | const char *_upper = _keys + _klen - 1; |
| 11174 | while (1) { |
| 11175 | if ( _upper < _lower ) |
| 11176 | break; |
| 11177 | |
| 11178 | _mid = _lower + ((_upper-_lower) >> 1); |
| 11179 | if ( (*p) < *_mid ) |
| 11180 | _upper = _mid - 1; |
| 11181 | else if ( (*p) > *_mid ) |
| 11182 | _lower = _mid + 1; |
| 11183 | else { |
| 11184 | _trans += (unsigned int)(_mid - _keys); |
| 11185 | goto _match; |
| 11186 | } |
| 11187 | } |
| 11188 | _keys += _klen; |
| 11189 | _trans += _klen; |
| 11190 | } |
| 11191 | |
| 11192 | _klen = _json_range_lengths[cs]; |
| 11193 | if ( _klen > 0 ) { |
| 11194 | const char *_lower = _keys; |
| 11195 | const char *_mid; |
| 11196 | const char *_upper = _keys + (_klen<<1) - 2; |
| 11197 | while (1) { |
| 11198 | if ( _upper < _lower ) |
| 11199 | break; |
| 11200 | |
| 11201 | _mid = _lower + (((_upper-_lower) >> 1) & ~1); |
| 11202 | if ( (*p) < _mid[0] ) |
| 11203 | _upper = _mid - 2; |
| 11204 | else if ( (*p) > _mid[1] ) |
| 11205 | _lower = _mid + 2; |
| 11206 | else { |
| 11207 | _trans += (unsigned int)((_mid - _keys)>>1); |
| 11208 | goto _match; |
| 11209 | } |
| 11210 | } |
| 11211 | _trans += _klen; |
| 11212 | } |
| 11213 | |
| 11214 | _match: |
| 11215 | _trans = _json_indicies[_trans]; |
| 11216 | cs = _json_trans_targs[_trans]; |
| 11217 | |
| 11218 | if ( _json_trans_actions[_trans] == 0 ) |
| 11219 | goto _again; |
| 11220 | |
| 11221 | _acts = _json_actions + _json_trans_actions[_trans]; |
| 11222 | _nacts = (unsigned int) *_acts++; |
| 11223 | while ( _nacts-- > 0 ) |
| 11224 | { |
| 11225 | switch ( *_acts++ ) |
| 11226 | { |
| 11227 | case 0: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11228 | #line 1161 "upb/json/parser.rl" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11229 | { p--; {cs = stack[--top]; goto _again;} } |
| 11230 | break; |
| 11231 | case 1: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11232 | #line 1162 "upb/json/parser.rl" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11233 | { p--; {stack[top++] = cs; cs = 10; goto _again;} } |
| 11234 | break; |
| 11235 | case 2: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11236 | #line 1166 "upb/json/parser.rl" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11237 | { start_text(parser, p); } |
| 11238 | break; |
| 11239 | case 3: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11240 | #line 1167 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11241 | { CHECK_RETURN_TOP(end_text(parser, p)); } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11242 | break; |
| 11243 | case 4: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11244 | #line 1173 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11245 | { start_hex(parser); } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11246 | break; |
| 11247 | case 5: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11248 | #line 1174 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11249 | { hexdigit(parser, p); } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11250 | break; |
| 11251 | case 6: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11252 | #line 1175 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11253 | { CHECK_RETURN_TOP(end_hex(parser)); } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11254 | break; |
| 11255 | case 7: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11256 | #line 1181 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11257 | { CHECK_RETURN_TOP(escape(parser, p)); } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11258 | break; |
| 11259 | case 8: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11260 | #line 1187 "upb/json/parser.rl" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11261 | { p--; {cs = stack[--top]; goto _again;} } |
| 11262 | break; |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11263 | case 9: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11264 | #line 1190 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11265 | { {stack[top++] = cs; cs = 19; goto _again;} } |
| 11266 | break; |
| 11267 | case 10: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11268 | #line 1192 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11269 | { p--; {stack[top++] = cs; cs = 27; goto _again;} } |
| 11270 | break; |
| 11271 | case 11: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11272 | #line 1197 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11273 | { start_member(parser); } |
| 11274 | break; |
| 11275 | case 12: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11276 | #line 1198 "upb/json/parser.rl" |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11277 | { CHECK_RETURN_TOP(end_membername(parser)); } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11278 | break; |
| 11279 | case 13: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11280 | #line 1201 "upb/json/parser.rl" |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11281 | { end_member(parser); } |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11282 | break; |
| 11283 | case 14: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11284 | #line 1207 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11285 | { start_object(parser); } |
| 11286 | break; |
| 11287 | case 15: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11288 | #line 1210 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11289 | { end_object(parser); } |
| 11290 | break; |
| 11291 | case 16: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11292 | #line 1216 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11293 | { CHECK_RETURN_TOP(start_array(parser)); } |
| 11294 | break; |
| 11295 | case 17: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11296 | #line 1220 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11297 | { end_array(parser); } |
| 11298 | break; |
| 11299 | case 18: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11300 | #line 1225 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11301 | { start_number(parser, p); } |
| 11302 | break; |
| 11303 | case 19: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11304 | #line 1226 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11305 | { CHECK_RETURN_TOP(end_number(parser, p)); } |
| 11306 | break; |
| 11307 | case 20: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11308 | #line 1228 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11309 | { CHECK_RETURN_TOP(start_stringval(parser)); } |
| 11310 | break; |
| 11311 | case 21: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11312 | #line 1229 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11313 | { CHECK_RETURN_TOP(end_stringval(parser)); } |
| 11314 | break; |
| 11315 | case 22: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11316 | #line 1231 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11317 | { CHECK_RETURN_TOP(parser_putbool(parser, true)); } |
| 11318 | break; |
| 11319 | case 23: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11320 | #line 1233 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11321 | { CHECK_RETURN_TOP(parser_putbool(parser, false)); } |
| 11322 | break; |
| 11323 | case 24: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11324 | #line 1235 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11325 | { /* null value */ } |
| 11326 | break; |
| 11327 | case 25: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11328 | #line 1237 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11329 | { CHECK_RETURN_TOP(start_subobject(parser)); } |
| 11330 | break; |
| 11331 | case 26: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11332 | #line 1238 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11333 | { end_subobject(parser); } |
| 11334 | break; |
| 11335 | case 27: |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11336 | #line 1243 "upb/json/parser.rl" |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11337 | { p--; {cs = stack[--top]; goto _again;} } |
| 11338 | break; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11339 | #line 1515 "upb/json/parser.c" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11340 | } |
| 11341 | } |
| 11342 | |
| 11343 | _again: |
| 11344 | if ( cs == 0 ) |
| 11345 | goto _out; |
| 11346 | if ( ++p != pe ) |
| 11347 | goto _resume; |
| 11348 | _test_eof: {} |
| 11349 | _out: {} |
| 11350 | } |
| 11351 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11352 | #line 1270 "upb/json/parser.rl" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11353 | |
| 11354 | if (p != pe) { |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 11355 | upb_status_seterrf(&parser->status, "Parse error at %s\n", p); |
| 11356 | upb_env_reporterror(parser->env, &parser->status); |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11357 | } else { |
| 11358 | capture_suspend(parser, &p); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11359 | } |
| 11360 | |
| 11361 | error: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11362 | /* Save parsing state back to parser. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11363 | parser->current_state = cs; |
| 11364 | parser->parser_top = top; |
| 11365 | |
| 11366 | return p - buf; |
| 11367 | } |
| 11368 | |
| 11369 | bool end(void *closure, const void *hd) { |
| 11370 | UPB_UNUSED(closure); |
| 11371 | UPB_UNUSED(hd); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11372 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11373 | /* Prevent compile warning on unused static constants. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11374 | UPB_UNUSED(json_start); |
| 11375 | UPB_UNUSED(json_en_number_machine); |
| 11376 | UPB_UNUSED(json_en_string_machine); |
| 11377 | UPB_UNUSED(json_en_value_machine); |
| 11378 | UPB_UNUSED(json_en_main); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11379 | return true; |
| 11380 | } |
| 11381 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11382 | static void json_parser_reset(upb_json_parser *p) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11383 | int cs; |
| 11384 | int top; |
| 11385 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11386 | p->top = p->stack; |
| 11387 | p->top->f = NULL; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11388 | p->top->is_map = false; |
| 11389 | p->top->is_mapentry = false; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11390 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11391 | /* Emit Ragel initialization of the parser. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11392 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11393 | #line 1569 "upb/json/parser.c" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11394 | { |
| 11395 | cs = json_start; |
| 11396 | top = 0; |
| 11397 | } |
| 11398 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11399 | #line 1310 "upb/json/parser.rl" |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11400 | p->current_state = cs; |
| 11401 | p->parser_top = top; |
Chris Fallin | 97b663a | 2015-01-09 16:15:22 -0800 | [diff] [blame] | 11402 | accumulate_clear(p); |
| 11403 | p->multipart_state = MULTIPART_INACTIVE; |
| 11404 | p->capture = NULL; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11405 | p->accumulated = NULL; |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 11406 | upb_status_clear(&p->status); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11407 | } |
| 11408 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11409 | static void visit_json_parsermethod(const upb_refcounted *r, |
| 11410 | upb_refcounted_visit *visit, |
| 11411 | void *closure) { |
| 11412 | const upb_json_parsermethod *method = (upb_json_parsermethod*)r; |
| 11413 | visit(r, upb_msgdef_upcast2(method->msg), closure); |
| 11414 | } |
| 11415 | |
| 11416 | static void free_json_parsermethod(upb_refcounted *r) { |
| 11417 | upb_json_parsermethod *method = (upb_json_parsermethod*)r; |
| 11418 | |
| 11419 | upb_inttable_iter i; |
| 11420 | upb_inttable_begin(&i, &method->name_tables); |
| 11421 | for(; !upb_inttable_done(&i); upb_inttable_next(&i)) { |
| 11422 | upb_value val = upb_inttable_iter_value(&i); |
| 11423 | upb_strtable *t = upb_value_getptr(val); |
| 11424 | upb_strtable_uninit(t); |
| 11425 | free(t); |
| 11426 | } |
| 11427 | |
| 11428 | upb_inttable_uninit(&method->name_tables); |
| 11429 | |
| 11430 | free(r); |
| 11431 | } |
| 11432 | |
| 11433 | static void add_jsonname_table(upb_json_parsermethod *m, const upb_msgdef* md) { |
| 11434 | upb_msg_field_iter i; |
| 11435 | upb_strtable *t; |
| 11436 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 11437 | /* It would be nice to stack-allocate this, but protobufs do not limit the |
| 11438 | * length of fields to any reasonable limit. */ |
| 11439 | char *buf = NULL; |
| 11440 | size_t len = 0; |
| 11441 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11442 | if (upb_inttable_lookupptr(&m->name_tables, md, NULL)) { |
| 11443 | return; |
| 11444 | } |
| 11445 | |
| 11446 | /* TODO(haberman): handle malloc failure. */ |
| 11447 | t = malloc(sizeof(*t)); |
| 11448 | upb_strtable_init(t, UPB_CTYPE_CONSTPTR); |
| 11449 | upb_inttable_insertptr(&m->name_tables, md, upb_value_ptr(t)); |
| 11450 | |
| 11451 | for(upb_msg_field_begin(&i, md); |
| 11452 | !upb_msg_field_done(&i); |
| 11453 | upb_msg_field_next(&i)) { |
| 11454 | const upb_fielddef *f = upb_msg_iter_field(&i); |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 11455 | size_t field_len = upb_fielddef_getjsonname(f, buf, len); |
| 11456 | if (field_len > len) { |
| 11457 | buf = realloc(buf, field_len); |
| 11458 | len = field_len; |
| 11459 | upb_fielddef_getjsonname(f, buf, len); |
| 11460 | } |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11461 | upb_strtable_insert(t, buf, upb_value_constptr(f)); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11462 | |
| 11463 | if (upb_fielddef_issubmsg(f)) { |
| 11464 | add_jsonname_table(m, upb_fielddef_msgsubdef(f)); |
| 11465 | } |
| 11466 | } |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 11467 | |
| 11468 | free(buf); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11469 | } |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11470 | |
| 11471 | /* Public API *****************************************************************/ |
| 11472 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11473 | upb_json_parser *upb_json_parser_create(upb_env *env, |
| 11474 | const upb_json_parsermethod *method, |
| 11475 | upb_sink *output) { |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11476 | #ifndef NDEBUG |
| 11477 | const size_t size_before = upb_env_bytesallocated(env); |
| 11478 | #endif |
| 11479 | upb_json_parser *p = upb_env_malloc(env, sizeof(upb_json_parser)); |
| 11480 | if (!p) return false; |
| 11481 | |
| 11482 | p->env = env; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11483 | p->method = method; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11484 | p->limit = p->stack + UPB_JSON_MAX_DEPTH; |
| 11485 | p->accumulate_buf = NULL; |
| 11486 | p->accumulate_buf_size = 0; |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11487 | upb_bytessink_reset(&p->input_, &method->input_handler_, p); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11488 | |
| 11489 | json_parser_reset(p); |
| 11490 | upb_sink_reset(&p->top->sink, output->handlers, output->closure); |
| 11491 | p->top->m = upb_handlers_msgdef(output->handlers); |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11492 | set_name_table(p, p->top); |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11493 | |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 11494 | /* If this fails, uncomment and increase the value in parser.h. */ |
| 11495 | /* fprintf(stderr, "%zd\n", upb_env_bytesallocated(env) - size_before); */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11496 | assert(upb_env_bytesallocated(env) - size_before <= UPB_JSON_PARSER_SIZE); |
| 11497 | return p; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11498 | } |
| 11499 | |
| 11500 | upb_bytessink *upb_json_parser_input(upb_json_parser *p) { |
| 11501 | return &p->input_; |
| 11502 | } |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11503 | |
| 11504 | upb_json_parsermethod *upb_json_parsermethod_new(const upb_msgdef* md, |
| 11505 | const void* owner) { |
| 11506 | static const struct upb_refcounted_vtbl vtbl = {visit_json_parsermethod, |
| 11507 | free_json_parsermethod}; |
| 11508 | upb_json_parsermethod *ret = malloc(sizeof(*ret)); |
| 11509 | upb_refcounted_init(upb_json_parsermethod_upcast_mutable(ret), &vtbl, owner); |
| 11510 | |
| 11511 | ret->msg = md; |
| 11512 | upb_ref2(md, ret); |
| 11513 | |
| 11514 | upb_byteshandler_init(&ret->input_handler_); |
| 11515 | upb_byteshandler_setstring(&ret->input_handler_, parse, ret); |
| 11516 | upb_byteshandler_setendstr(&ret->input_handler_, end, ret); |
| 11517 | |
| 11518 | upb_inttable_init(&ret->name_tables, UPB_CTYPE_PTR); |
| 11519 | |
| 11520 | add_jsonname_table(ret, md); |
| 11521 | |
| 11522 | return ret; |
| 11523 | } |
| 11524 | |
| 11525 | const upb_byteshandler *upb_json_parsermethod_inputhandler( |
| 11526 | const upb_json_parsermethod *m) { |
| 11527 | return &m->input_handler_; |
| 11528 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11529 | /* |
Josh Haberman | 181c7f2 | 2015-07-15 11:05:10 -0700 | [diff] [blame] | 11530 | ** This currently uses snprintf() to format primitives, and could be optimized |
| 11531 | ** further. |
| 11532 | */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11533 | |
| 11534 | |
| 11535 | #include <stdlib.h> |
| 11536 | #include <stdio.h> |
| 11537 | #include <string.h> |
| 11538 | #include <stdint.h> |
| 11539 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11540 | struct upb_json_printer { |
| 11541 | upb_sink input_; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11542 | /* BytesSink closure. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11543 | void *subc_; |
| 11544 | upb_bytessink *output_; |
| 11545 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11546 | /* We track the depth so that we know when to emit startstr/endstr on the |
| 11547 | * output. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11548 | int depth_; |
| 11549 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11550 | /* Have we emitted the first element? This state is necessary to emit commas |
| 11551 | * without leaving a trailing comma in arrays/maps. We keep this state per |
| 11552 | * frame depth. |
| 11553 | * |
| 11554 | * Why max_depth * 2? UPB_MAX_HANDLER_DEPTH counts depth as nested messages. |
| 11555 | * We count frames (contexts in which we separate elements by commas) as both |
| 11556 | * repeated fields and messages (maps), and the worst case is a |
| 11557 | * message->repeated field->submessage->repeated field->... nesting. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11558 | bool first_elem_[UPB_MAX_HANDLER_DEPTH * 2]; |
| 11559 | }; |
| 11560 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11561 | /* StringPiece; a pointer plus a length. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11562 | typedef struct { |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11563 | char *ptr; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11564 | size_t len; |
| 11565 | } strpc; |
| 11566 | |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11567 | void freestrpc(void *ptr) { |
| 11568 | strpc *pc = ptr; |
| 11569 | free(pc->ptr); |
| 11570 | free(pc); |
| 11571 | } |
| 11572 | |
| 11573 | /* Convert fielddef name to JSON name and return as a string piece. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11574 | strpc *newstrpc(upb_handlers *h, const upb_fielddef *f) { |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11575 | /* TODO(haberman): handle malloc failure. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11576 | strpc *ret = malloc(sizeof(*ret)); |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 11577 | size_t len; |
| 11578 | ret->len = upb_fielddef_getjsonname(f, NULL, 0); |
| 11579 | ret->ptr = malloc(ret->len); |
| 11580 | len = upb_fielddef_getjsonname(f, ret->ptr, ret->len); |
| 11581 | UPB_ASSERT_VAR(len, len == ret->len); |
| 11582 | ret->len--; /* NULL */ |
Josh Haberman | 78da666 | 2016-01-13 19:05:43 -0800 | [diff] [blame] | 11583 | |
| 11584 | upb_handlers_addcleanup(h, ret, freestrpc); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11585 | return ret; |
| 11586 | } |
| 11587 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11588 | /* ------------ JSON string printing: values, maps, arrays ------------------ */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11589 | |
| 11590 | static void print_data( |
| 11591 | upb_json_printer *p, const char *buf, unsigned int len) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11592 | /* TODO: Will need to change if we support pushback from the sink. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11593 | size_t n = upb_bytessink_putbuf(p->output_, p->subc_, buf, len, NULL); |
| 11594 | UPB_ASSERT_VAR(n, n == len); |
| 11595 | } |
| 11596 | |
| 11597 | static void print_comma(upb_json_printer *p) { |
| 11598 | if (!p->first_elem_[p->depth_]) { |
| 11599 | print_data(p, ",", 1); |
| 11600 | } |
| 11601 | p->first_elem_[p->depth_] = false; |
| 11602 | } |
| 11603 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11604 | /* Helpers that print properly formatted elements to the JSON output stream. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11605 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11606 | /* Used for escaping control chars in strings. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11607 | static const char kControlCharLimit = 0x20; |
| 11608 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11609 | UPB_INLINE bool is_json_escaped(char c) { |
| 11610 | /* See RFC 4627. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11611 | unsigned char uc = (unsigned char)c; |
| 11612 | return uc < kControlCharLimit || uc == '"' || uc == '\\'; |
| 11613 | } |
| 11614 | |
Josh Haberman | f654d49 | 2016-02-18 11:07:51 -0800 | [diff] [blame] | 11615 | UPB_INLINE const char* json_nice_escape(char c) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11616 | switch (c) { |
| 11617 | case '"': return "\\\""; |
| 11618 | case '\\': return "\\\\"; |
| 11619 | case '\b': return "\\b"; |
| 11620 | case '\f': return "\\f"; |
| 11621 | case '\n': return "\\n"; |
| 11622 | case '\r': return "\\r"; |
| 11623 | case '\t': return "\\t"; |
| 11624 | default: return NULL; |
| 11625 | } |
| 11626 | } |
| 11627 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11628 | /* Write a properly escaped string chunk. The surrounding quotes are *not* |
| 11629 | * printed; this is so that the caller has the option of emitting the string |
| 11630 | * content in chunks. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11631 | static void putstring(upb_json_printer *p, const char *buf, unsigned int len) { |
| 11632 | const char* unescaped_run = NULL; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11633 | unsigned int i; |
| 11634 | for (i = 0; i < len; i++) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11635 | char c = buf[i]; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11636 | /* Handle escaping. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11637 | if (is_json_escaped(c)) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11638 | /* Use a "nice" escape, like \n, if one exists for this character. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11639 | const char* escape = json_nice_escape(c); |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11640 | /* If we don't have a specific 'nice' escape code, use a \uXXXX-style |
| 11641 | * escape. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11642 | char escape_buf[8]; |
| 11643 | if (!escape) { |
| 11644 | unsigned char byte = (unsigned char)c; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11645 | _upb_snprintf(escape_buf, sizeof(escape_buf), "\\u%04x", (int)byte); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11646 | escape = escape_buf; |
| 11647 | } |
| 11648 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11649 | /* N.B. that we assume that the input encoding is equal to the output |
| 11650 | * encoding (both UTF-8 for now), so for chars >= 0x20 and != \, ", we |
| 11651 | * can simply pass the bytes through. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11652 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11653 | /* If there's a current run of unescaped chars, print that run first. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11654 | if (unescaped_run) { |
| 11655 | print_data(p, unescaped_run, &buf[i] - unescaped_run); |
| 11656 | unescaped_run = NULL; |
| 11657 | } |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11658 | /* Then print the escape code. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11659 | print_data(p, escape, strlen(escape)); |
| 11660 | } else { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11661 | /* Add to the current unescaped run of characters. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11662 | if (unescaped_run == NULL) { |
| 11663 | unescaped_run = &buf[i]; |
| 11664 | } |
| 11665 | } |
| 11666 | } |
| 11667 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11668 | /* If the string ended in a run of unescaped characters, print that last run. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11669 | if (unescaped_run) { |
| 11670 | print_data(p, unescaped_run, &buf[len] - unescaped_run); |
| 11671 | } |
| 11672 | } |
| 11673 | |
| 11674 | #define CHKLENGTH(x) if (!(x)) return -1; |
| 11675 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11676 | /* Helpers that format floating point values according to our custom formats. |
| 11677 | * Right now we use %.8g and %.17g for float/double, respectively, to match |
| 11678 | * proto2::util::JsonFormat's defaults. May want to change this later. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11679 | |
| 11680 | static size_t fmt_double(double val, char* buf, size_t length) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11681 | size_t n = _upb_snprintf(buf, length, "%.17g", val); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11682 | CHKLENGTH(n > 0 && n < length); |
| 11683 | return n; |
| 11684 | } |
| 11685 | |
| 11686 | static size_t fmt_float(float val, char* buf, size_t length) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11687 | size_t n = _upb_snprintf(buf, length, "%.8g", val); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11688 | CHKLENGTH(n > 0 && n < length); |
| 11689 | return n; |
| 11690 | } |
| 11691 | |
| 11692 | static size_t fmt_bool(bool val, char* buf, size_t length) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11693 | size_t n = _upb_snprintf(buf, length, "%s", (val ? "true" : "false")); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11694 | CHKLENGTH(n > 0 && n < length); |
| 11695 | return n; |
| 11696 | } |
| 11697 | |
| 11698 | static size_t fmt_int64(long val, char* buf, size_t length) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11699 | size_t n = _upb_snprintf(buf, length, "%ld", val); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11700 | CHKLENGTH(n > 0 && n < length); |
| 11701 | return n; |
| 11702 | } |
| 11703 | |
| 11704 | static size_t fmt_uint64(unsigned long long val, char* buf, size_t length) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11705 | size_t n = _upb_snprintf(buf, length, "%llu", val); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11706 | CHKLENGTH(n > 0 && n < length); |
| 11707 | return n; |
| 11708 | } |
| 11709 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11710 | /* Print a map key given a field name. Called by scalar field handlers and by |
| 11711 | * startseq for repeated fields. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11712 | static bool putkey(void *closure, const void *handler_data) { |
| 11713 | upb_json_printer *p = closure; |
| 11714 | const strpc *key = handler_data; |
| 11715 | print_comma(p); |
| 11716 | print_data(p, "\"", 1); |
| 11717 | putstring(p, key->ptr, key->len); |
| 11718 | print_data(p, "\":", 2); |
| 11719 | return true; |
| 11720 | } |
| 11721 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 11722 | #define CHKFMT(val) if ((val) == (size_t)-1) return false; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11723 | #define CHK(val) if (!(val)) return false; |
| 11724 | |
| 11725 | #define TYPE_HANDLERS(type, fmt_func) \ |
| 11726 | static bool put##type(void *closure, const void *handler_data, type val) { \ |
| 11727 | upb_json_printer *p = closure; \ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11728 | char data[64]; \ |
| 11729 | size_t length = fmt_func(val, data, sizeof(data)); \ |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11730 | UPB_UNUSED(handler_data); \ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11731 | CHKFMT(length); \ |
| 11732 | print_data(p, data, length); \ |
| 11733 | return true; \ |
| 11734 | } \ |
| 11735 | static bool scalar_##type(void *closure, const void *handler_data, \ |
| 11736 | type val) { \ |
| 11737 | CHK(putkey(closure, handler_data)); \ |
| 11738 | CHK(put##type(closure, handler_data, val)); \ |
| 11739 | return true; \ |
| 11740 | } \ |
| 11741 | static bool repeated_##type(void *closure, const void *handler_data, \ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11742 | type val) { \ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11743 | upb_json_printer *p = closure; \ |
| 11744 | print_comma(p); \ |
| 11745 | CHK(put##type(closure, handler_data, val)); \ |
| 11746 | return true; \ |
| 11747 | } |
| 11748 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11749 | #define TYPE_HANDLERS_MAPKEY(type, fmt_func) \ |
| 11750 | static bool putmapkey_##type(void *closure, const void *handler_data, \ |
| 11751 | type val) { \ |
| 11752 | upb_json_printer *p = closure; \ |
| 11753 | print_data(p, "\"", 1); \ |
| 11754 | CHK(put##type(closure, handler_data, val)); \ |
| 11755 | print_data(p, "\":", 2); \ |
| 11756 | return true; \ |
| 11757 | } |
| 11758 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11759 | TYPE_HANDLERS(double, fmt_double) |
| 11760 | TYPE_HANDLERS(float, fmt_float) |
| 11761 | TYPE_HANDLERS(bool, fmt_bool) |
| 11762 | TYPE_HANDLERS(int32_t, fmt_int64) |
| 11763 | TYPE_HANDLERS(uint32_t, fmt_int64) |
| 11764 | TYPE_HANDLERS(int64_t, fmt_int64) |
| 11765 | TYPE_HANDLERS(uint64_t, fmt_uint64) |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11766 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11767 | /* double and float are not allowed to be map keys. */ |
| 11768 | TYPE_HANDLERS_MAPKEY(bool, fmt_bool) |
| 11769 | TYPE_HANDLERS_MAPKEY(int32_t, fmt_int64) |
| 11770 | TYPE_HANDLERS_MAPKEY(uint32_t, fmt_int64) |
| 11771 | TYPE_HANDLERS_MAPKEY(int64_t, fmt_int64) |
| 11772 | TYPE_HANDLERS_MAPKEY(uint64_t, fmt_uint64) |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11773 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11774 | #undef TYPE_HANDLERS |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11775 | #undef TYPE_HANDLERS_MAPKEY |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11776 | |
| 11777 | typedef struct { |
| 11778 | void *keyname; |
| 11779 | const upb_enumdef *enumdef; |
| 11780 | } EnumHandlerData; |
| 11781 | |
| 11782 | static bool scalar_enum(void *closure, const void *handler_data, |
| 11783 | int32_t val) { |
| 11784 | const EnumHandlerData *hd = handler_data; |
| 11785 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11786 | const char *symbolic_name; |
| 11787 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11788 | CHK(putkey(closure, hd->keyname)); |
| 11789 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11790 | symbolic_name = upb_enumdef_iton(hd->enumdef, val); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11791 | if (symbolic_name) { |
| 11792 | print_data(p, "\"", 1); |
| 11793 | putstring(p, symbolic_name, strlen(symbolic_name)); |
| 11794 | print_data(p, "\"", 1); |
| 11795 | } else { |
| 11796 | putint32_t(closure, NULL, val); |
| 11797 | } |
| 11798 | |
| 11799 | return true; |
| 11800 | } |
| 11801 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11802 | static void print_enum_symbolic_name(upb_json_printer *p, |
| 11803 | const upb_enumdef *def, |
| 11804 | int32_t val) { |
| 11805 | const char *symbolic_name = upb_enumdef_iton(def, val); |
| 11806 | if (symbolic_name) { |
| 11807 | print_data(p, "\"", 1); |
| 11808 | putstring(p, symbolic_name, strlen(symbolic_name)); |
| 11809 | print_data(p, "\"", 1); |
| 11810 | } else { |
| 11811 | putint32_t(p, NULL, val); |
| 11812 | } |
| 11813 | } |
| 11814 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11815 | static bool repeated_enum(void *closure, const void *handler_data, |
| 11816 | int32_t val) { |
| 11817 | const EnumHandlerData *hd = handler_data; |
| 11818 | upb_json_printer *p = closure; |
| 11819 | print_comma(p); |
| 11820 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11821 | print_enum_symbolic_name(p, hd->enumdef, val); |
| 11822 | |
| 11823 | return true; |
| 11824 | } |
| 11825 | |
| 11826 | static bool mapvalue_enum(void *closure, const void *handler_data, |
| 11827 | int32_t val) { |
| 11828 | const EnumHandlerData *hd = handler_data; |
| 11829 | upb_json_printer *p = closure; |
| 11830 | |
| 11831 | print_enum_symbolic_name(p, hd->enumdef, val); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11832 | |
| 11833 | return true; |
| 11834 | } |
| 11835 | |
| 11836 | static void *scalar_startsubmsg(void *closure, const void *handler_data) { |
| 11837 | return putkey(closure, handler_data) ? closure : UPB_BREAK; |
| 11838 | } |
| 11839 | |
| 11840 | static void *repeated_startsubmsg(void *closure, const void *handler_data) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11841 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11842 | UPB_UNUSED(handler_data); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11843 | print_comma(p); |
| 11844 | return closure; |
| 11845 | } |
| 11846 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11847 | static void start_frame(upb_json_printer *p) { |
| 11848 | p->depth_++; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11849 | p->first_elem_[p->depth_] = true; |
| 11850 | print_data(p, "{", 1); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11851 | } |
| 11852 | |
| 11853 | static void end_frame(upb_json_printer *p) { |
| 11854 | print_data(p, "}", 1); |
| 11855 | p->depth_--; |
| 11856 | } |
| 11857 | |
| 11858 | static bool printer_startmsg(void *closure, const void *handler_data) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11859 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11860 | UPB_UNUSED(handler_data); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11861 | if (p->depth_ == 0) { |
| 11862 | upb_bytessink_start(p->output_, 0, &p->subc_); |
| 11863 | } |
| 11864 | start_frame(p); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11865 | return true; |
| 11866 | } |
| 11867 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11868 | static bool printer_endmsg(void *closure, const void *handler_data, upb_status *s) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11869 | upb_json_printer *p = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11870 | UPB_UNUSED(handler_data); |
| 11871 | UPB_UNUSED(s); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11872 | end_frame(p); |
| 11873 | if (p->depth_ == 0) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11874 | upb_bytessink_end(p->output_); |
| 11875 | } |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11876 | return true; |
| 11877 | } |
| 11878 | |
| 11879 | static void *startseq(void *closure, const void *handler_data) { |
| 11880 | upb_json_printer *p = closure; |
| 11881 | CHK(putkey(closure, handler_data)); |
| 11882 | p->depth_++; |
| 11883 | p->first_elem_[p->depth_] = true; |
| 11884 | print_data(p, "[", 1); |
| 11885 | return closure; |
| 11886 | } |
| 11887 | |
| 11888 | static bool endseq(void *closure, const void *handler_data) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11889 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11890 | UPB_UNUSED(handler_data); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11891 | print_data(p, "]", 1); |
| 11892 | p->depth_--; |
| 11893 | return true; |
| 11894 | } |
| 11895 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11896 | static void *startmap(void *closure, const void *handler_data) { |
| 11897 | upb_json_printer *p = closure; |
| 11898 | CHK(putkey(closure, handler_data)); |
| 11899 | p->depth_++; |
| 11900 | p->first_elem_[p->depth_] = true; |
| 11901 | print_data(p, "{", 1); |
| 11902 | return closure; |
| 11903 | } |
| 11904 | |
| 11905 | static bool endmap(void *closure, const void *handler_data) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11906 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11907 | UPB_UNUSED(handler_data); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 11908 | print_data(p, "}", 1); |
| 11909 | p->depth_--; |
| 11910 | return true; |
| 11911 | } |
| 11912 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11913 | static size_t putstr(void *closure, const void *handler_data, const char *str, |
| 11914 | size_t len, const upb_bufhandle *handle) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11915 | upb_json_printer *p = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11916 | UPB_UNUSED(handler_data); |
| 11917 | UPB_UNUSED(handle); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11918 | putstring(p, str, len); |
| 11919 | return len; |
| 11920 | } |
| 11921 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11922 | /* This has to Base64 encode the bytes, because JSON has no "bytes" type. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11923 | static size_t putbytes(void *closure, const void *handler_data, const char *str, |
| 11924 | size_t len, const upb_bufhandle *handle) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11925 | upb_json_printer *p = closure; |
| 11926 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11927 | /* This is the regular base64, not the "web-safe" version. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11928 | static const char base64[] = |
| 11929 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; |
| 11930 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11931 | /* Base64-encode. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11932 | char data[16000]; |
| 11933 | const char *limit = data + sizeof(data); |
| 11934 | const unsigned char *from = (const unsigned char*)str; |
| 11935 | char *to = data; |
| 11936 | size_t remaining = len; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11937 | size_t bytes; |
| 11938 | |
| 11939 | UPB_UNUSED(handler_data); |
| 11940 | UPB_UNUSED(handle); |
| 11941 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11942 | while (remaining > 2) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11943 | /* TODO(haberman): handle encoded lengths > sizeof(data) */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11944 | UPB_ASSERT_VAR(limit, (limit - to) >= 4); |
| 11945 | |
| 11946 | to[0] = base64[from[0] >> 2]; |
| 11947 | to[1] = base64[((from[0] & 0x3) << 4) | (from[1] >> 4)]; |
| 11948 | to[2] = base64[((from[1] & 0xf) << 2) | (from[2] >> 6)]; |
| 11949 | to[3] = base64[from[2] & 0x3f]; |
| 11950 | |
| 11951 | remaining -= 3; |
| 11952 | to += 4; |
| 11953 | from += 3; |
| 11954 | } |
| 11955 | |
| 11956 | switch (remaining) { |
| 11957 | case 2: |
| 11958 | to[0] = base64[from[0] >> 2]; |
| 11959 | to[1] = base64[((from[0] & 0x3) << 4) | (from[1] >> 4)]; |
| 11960 | to[2] = base64[(from[1] & 0xf) << 2]; |
| 11961 | to[3] = '='; |
| 11962 | to += 4; |
| 11963 | from += 2; |
| 11964 | break; |
| 11965 | case 1: |
| 11966 | to[0] = base64[from[0] >> 2]; |
| 11967 | to[1] = base64[((from[0] & 0x3) << 4)]; |
| 11968 | to[2] = '='; |
| 11969 | to[3] = '='; |
| 11970 | to += 4; |
| 11971 | from += 1; |
| 11972 | break; |
| 11973 | } |
| 11974 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11975 | bytes = to - data; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11976 | print_data(p, "\"", 1); |
| 11977 | putstring(p, data, bytes); |
| 11978 | print_data(p, "\"", 1); |
| 11979 | return len; |
| 11980 | } |
| 11981 | |
| 11982 | static void *scalar_startstr(void *closure, const void *handler_data, |
| 11983 | size_t size_hint) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 11984 | upb_json_printer *p = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11985 | UPB_UNUSED(handler_data); |
| 11986 | UPB_UNUSED(size_hint); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 11987 | CHK(putkey(closure, handler_data)); |
| 11988 | print_data(p, "\"", 1); |
| 11989 | return p; |
| 11990 | } |
| 11991 | |
| 11992 | static size_t scalar_str(void *closure, const void *handler_data, |
| 11993 | const char *str, size_t len, |
| 11994 | const upb_bufhandle *handle) { |
| 11995 | CHK(putstr(closure, handler_data, str, len, handle)); |
| 11996 | return len; |
| 11997 | } |
| 11998 | |
| 11999 | static bool scalar_endstr(void *closure, const void *handler_data) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12000 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12001 | UPB_UNUSED(handler_data); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12002 | print_data(p, "\"", 1); |
| 12003 | return true; |
| 12004 | } |
| 12005 | |
| 12006 | static void *repeated_startstr(void *closure, const void *handler_data, |
| 12007 | size_t size_hint) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12008 | upb_json_printer *p = closure; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12009 | UPB_UNUSED(handler_data); |
| 12010 | UPB_UNUSED(size_hint); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12011 | print_comma(p); |
| 12012 | print_data(p, "\"", 1); |
| 12013 | return p; |
| 12014 | } |
| 12015 | |
| 12016 | static size_t repeated_str(void *closure, const void *handler_data, |
| 12017 | const char *str, size_t len, |
| 12018 | const upb_bufhandle *handle) { |
| 12019 | CHK(putstr(closure, handler_data, str, len, handle)); |
| 12020 | return len; |
| 12021 | } |
| 12022 | |
| 12023 | static bool repeated_endstr(void *closure, const void *handler_data) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12024 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12025 | UPB_UNUSED(handler_data); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12026 | print_data(p, "\"", 1); |
| 12027 | return true; |
| 12028 | } |
| 12029 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12030 | static void *mapkeyval_startstr(void *closure, const void *handler_data, |
| 12031 | size_t size_hint) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12032 | upb_json_printer *p = closure; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12033 | UPB_UNUSED(handler_data); |
| 12034 | UPB_UNUSED(size_hint); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12035 | print_data(p, "\"", 1); |
| 12036 | return p; |
| 12037 | } |
| 12038 | |
| 12039 | static size_t mapkey_str(void *closure, const void *handler_data, |
| 12040 | const char *str, size_t len, |
| 12041 | const upb_bufhandle *handle) { |
| 12042 | CHK(putstr(closure, handler_data, str, len, handle)); |
| 12043 | return len; |
| 12044 | } |
| 12045 | |
| 12046 | static bool mapkey_endstr(void *closure, const void *handler_data) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12047 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12048 | UPB_UNUSED(handler_data); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12049 | print_data(p, "\":", 2); |
| 12050 | return true; |
| 12051 | } |
| 12052 | |
| 12053 | static bool mapvalue_endstr(void *closure, const void *handler_data) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12054 | upb_json_printer *p = closure; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12055 | UPB_UNUSED(handler_data); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12056 | print_data(p, "\"", 1); |
| 12057 | return true; |
| 12058 | } |
| 12059 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12060 | static size_t scalar_bytes(void *closure, const void *handler_data, |
| 12061 | const char *str, size_t len, |
| 12062 | const upb_bufhandle *handle) { |
| 12063 | CHK(putkey(closure, handler_data)); |
| 12064 | CHK(putbytes(closure, handler_data, str, len, handle)); |
| 12065 | return len; |
| 12066 | } |
| 12067 | |
| 12068 | static size_t repeated_bytes(void *closure, const void *handler_data, |
| 12069 | const char *str, size_t len, |
| 12070 | const upb_bufhandle *handle) { |
| 12071 | upb_json_printer *p = closure; |
| 12072 | print_comma(p); |
| 12073 | CHK(putbytes(closure, handler_data, str, len, handle)); |
| 12074 | return len; |
| 12075 | } |
| 12076 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12077 | static size_t mapkey_bytes(void *closure, const void *handler_data, |
| 12078 | const char *str, size_t len, |
| 12079 | const upb_bufhandle *handle) { |
| 12080 | upb_json_printer *p = closure; |
| 12081 | CHK(putbytes(closure, handler_data, str, len, handle)); |
| 12082 | print_data(p, ":", 1); |
| 12083 | return len; |
| 12084 | } |
| 12085 | |
| 12086 | static void set_enum_hd(upb_handlers *h, |
| 12087 | const upb_fielddef *f, |
| 12088 | upb_handlerattr *attr) { |
| 12089 | EnumHandlerData *hd = malloc(sizeof(EnumHandlerData)); |
| 12090 | hd->enumdef = (const upb_enumdef *)upb_fielddef_subdef(f); |
| 12091 | hd->keyname = newstrpc(h, f); |
| 12092 | upb_handlers_addcleanup(h, hd, free); |
| 12093 | upb_handlerattr_sethandlerdata(attr, hd); |
| 12094 | } |
| 12095 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12096 | /* Set up handlers for a mapentry submessage (i.e., an individual key/value pair |
| 12097 | * in a map). |
| 12098 | * |
| 12099 | * TODO: Handle missing key, missing value, out-of-order key/value, or repeated |
| 12100 | * key or value cases properly. The right way to do this is to allocate a |
| 12101 | * temporary structure at the start of a mapentry submessage, store key and |
| 12102 | * value data in it as key and value handlers are called, and then print the |
| 12103 | * key/value pair once at the end of the submessage. If we don't do this, we |
| 12104 | * should at least detect the case and throw an error. However, so far all of |
| 12105 | * our sources that emit mapentry messages do so canonically (with one key |
| 12106 | * field, and then one value field), so this is not a pressing concern at the |
| 12107 | * moment. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12108 | void printer_sethandlers_mapentry(const void *closure, upb_handlers *h) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12109 | const upb_msgdef *md = upb_handlers_msgdef(h); |
| 12110 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12111 | /* A mapentry message is printed simply as '"key": value'. Rather than |
| 12112 | * special-case key and value for every type below, we just handle both |
| 12113 | * fields explicitly here. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12114 | const upb_fielddef* key_field = upb_msgdef_itof(md, UPB_MAPENTRY_KEY); |
| 12115 | const upb_fielddef* value_field = upb_msgdef_itof(md, UPB_MAPENTRY_VALUE); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12116 | |
| 12117 | upb_handlerattr empty_attr = UPB_HANDLERATTR_INITIALIZER; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12118 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12119 | UPB_UNUSED(closure); |
| 12120 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12121 | switch (upb_fielddef_type(key_field)) { |
| 12122 | case UPB_TYPE_INT32: |
| 12123 | upb_handlers_setint32(h, key_field, putmapkey_int32_t, &empty_attr); |
| 12124 | break; |
| 12125 | case UPB_TYPE_INT64: |
| 12126 | upb_handlers_setint64(h, key_field, putmapkey_int64_t, &empty_attr); |
| 12127 | break; |
| 12128 | case UPB_TYPE_UINT32: |
| 12129 | upb_handlers_setuint32(h, key_field, putmapkey_uint32_t, &empty_attr); |
| 12130 | break; |
| 12131 | case UPB_TYPE_UINT64: |
| 12132 | upb_handlers_setuint64(h, key_field, putmapkey_uint64_t, &empty_attr); |
| 12133 | break; |
| 12134 | case UPB_TYPE_BOOL: |
| 12135 | upb_handlers_setbool(h, key_field, putmapkey_bool, &empty_attr); |
| 12136 | break; |
| 12137 | case UPB_TYPE_STRING: |
| 12138 | upb_handlers_setstartstr(h, key_field, mapkeyval_startstr, &empty_attr); |
| 12139 | upb_handlers_setstring(h, key_field, mapkey_str, &empty_attr); |
| 12140 | upb_handlers_setendstr(h, key_field, mapkey_endstr, &empty_attr); |
| 12141 | break; |
| 12142 | case UPB_TYPE_BYTES: |
| 12143 | upb_handlers_setstring(h, key_field, mapkey_bytes, &empty_attr); |
| 12144 | break; |
| 12145 | default: |
| 12146 | assert(false); |
| 12147 | break; |
| 12148 | } |
| 12149 | |
| 12150 | switch (upb_fielddef_type(value_field)) { |
| 12151 | case UPB_TYPE_INT32: |
| 12152 | upb_handlers_setint32(h, value_field, putint32_t, &empty_attr); |
| 12153 | break; |
| 12154 | case UPB_TYPE_INT64: |
| 12155 | upb_handlers_setint64(h, value_field, putint64_t, &empty_attr); |
| 12156 | break; |
| 12157 | case UPB_TYPE_UINT32: |
| 12158 | upb_handlers_setuint32(h, value_field, putuint32_t, &empty_attr); |
| 12159 | break; |
| 12160 | case UPB_TYPE_UINT64: |
| 12161 | upb_handlers_setuint64(h, value_field, putuint64_t, &empty_attr); |
| 12162 | break; |
| 12163 | case UPB_TYPE_BOOL: |
| 12164 | upb_handlers_setbool(h, value_field, putbool, &empty_attr); |
| 12165 | break; |
| 12166 | case UPB_TYPE_FLOAT: |
| 12167 | upb_handlers_setfloat(h, value_field, putfloat, &empty_attr); |
| 12168 | break; |
| 12169 | case UPB_TYPE_DOUBLE: |
| 12170 | upb_handlers_setdouble(h, value_field, putdouble, &empty_attr); |
| 12171 | break; |
| 12172 | case UPB_TYPE_STRING: |
| 12173 | upb_handlers_setstartstr(h, value_field, mapkeyval_startstr, &empty_attr); |
| 12174 | upb_handlers_setstring(h, value_field, putstr, &empty_attr); |
| 12175 | upb_handlers_setendstr(h, value_field, mapvalue_endstr, &empty_attr); |
| 12176 | break; |
| 12177 | case UPB_TYPE_BYTES: |
| 12178 | upb_handlers_setstring(h, value_field, putbytes, &empty_attr); |
| 12179 | break; |
| 12180 | case UPB_TYPE_ENUM: { |
| 12181 | upb_handlerattr enum_attr = UPB_HANDLERATTR_INITIALIZER; |
| 12182 | set_enum_hd(h, value_field, &enum_attr); |
| 12183 | upb_handlers_setint32(h, value_field, mapvalue_enum, &enum_attr); |
| 12184 | upb_handlerattr_uninit(&enum_attr); |
| 12185 | break; |
| 12186 | } |
| 12187 | case UPB_TYPE_MESSAGE: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12188 | /* No handler necessary -- the submsg handlers will print the message |
| 12189 | * as appropriate. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12190 | break; |
| 12191 | } |
| 12192 | |
| 12193 | upb_handlerattr_uninit(&empty_attr); |
| 12194 | } |
| 12195 | |
| 12196 | void printer_sethandlers(const void *closure, upb_handlers *h) { |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12197 | const upb_msgdef *md = upb_handlers_msgdef(h); |
| 12198 | bool is_mapentry = upb_msgdef_mapentry(md); |
| 12199 | upb_handlerattr empty_attr = UPB_HANDLERATTR_INITIALIZER; |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12200 | upb_msg_field_iter i; |
| 12201 | |
| 12202 | UPB_UNUSED(closure); |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12203 | |
| 12204 | if (is_mapentry) { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12205 | /* mapentry messages are sufficiently different that we handle them |
| 12206 | * separately. */ |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12207 | printer_sethandlers_mapentry(closure, h); |
| 12208 | return; |
| 12209 | } |
| 12210 | |
| 12211 | upb_handlers_setstartmsg(h, printer_startmsg, &empty_attr); |
| 12212 | upb_handlers_setendmsg(h, printer_endmsg, &empty_attr); |
| 12213 | |
| 12214 | #define TYPE(type, name, ctype) \ |
| 12215 | case type: \ |
| 12216 | if (upb_fielddef_isseq(f)) { \ |
| 12217 | upb_handlers_set##name(h, f, repeated_##ctype, &empty_attr); \ |
| 12218 | } else { \ |
| 12219 | upb_handlers_set##name(h, f, scalar_##ctype, &name_attr); \ |
| 12220 | } \ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12221 | break; |
| 12222 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12223 | upb_msg_field_begin(&i, md); |
Chris Fallin | fcd8889 | 2015-01-13 18:14:39 -0800 | [diff] [blame] | 12224 | for(; !upb_msg_field_done(&i); upb_msg_field_next(&i)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12225 | const upb_fielddef *f = upb_msg_iter_field(&i); |
| 12226 | |
| 12227 | upb_handlerattr name_attr = UPB_HANDLERATTR_INITIALIZER; |
| 12228 | upb_handlerattr_sethandlerdata(&name_attr, newstrpc(h, f)); |
| 12229 | |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12230 | if (upb_fielddef_ismap(f)) { |
| 12231 | upb_handlers_setstartseq(h, f, startmap, &name_attr); |
| 12232 | upb_handlers_setendseq(h, f, endmap, &name_attr); |
| 12233 | } else if (upb_fielddef_isseq(f)) { |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12234 | upb_handlers_setstartseq(h, f, startseq, &name_attr); |
| 12235 | upb_handlers_setendseq(h, f, endseq, &empty_attr); |
| 12236 | } |
| 12237 | |
| 12238 | switch (upb_fielddef_type(f)) { |
| 12239 | TYPE(UPB_TYPE_FLOAT, float, float); |
| 12240 | TYPE(UPB_TYPE_DOUBLE, double, double); |
| 12241 | TYPE(UPB_TYPE_BOOL, bool, bool); |
| 12242 | TYPE(UPB_TYPE_INT32, int32, int32_t); |
| 12243 | TYPE(UPB_TYPE_UINT32, uint32, uint32_t); |
| 12244 | TYPE(UPB_TYPE_INT64, int64, int64_t); |
| 12245 | TYPE(UPB_TYPE_UINT64, uint64, uint64_t); |
| 12246 | case UPB_TYPE_ENUM: { |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12247 | /* For now, we always emit symbolic names for enums. We may want an |
| 12248 | * option later to control this behavior, but we will wait for a real |
| 12249 | * need first. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12250 | upb_handlerattr enum_attr = UPB_HANDLERATTR_INITIALIZER; |
Chris Fallin | a507592 | 2015-02-02 15:07:34 -0800 | [diff] [blame] | 12251 | set_enum_hd(h, f, &enum_attr); |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12252 | |
| 12253 | if (upb_fielddef_isseq(f)) { |
| 12254 | upb_handlers_setint32(h, f, repeated_enum, &enum_attr); |
| 12255 | } else { |
| 12256 | upb_handlers_setint32(h, f, scalar_enum, &enum_attr); |
| 12257 | } |
| 12258 | |
| 12259 | upb_handlerattr_uninit(&enum_attr); |
| 12260 | break; |
| 12261 | } |
| 12262 | case UPB_TYPE_STRING: |
| 12263 | if (upb_fielddef_isseq(f)) { |
| 12264 | upb_handlers_setstartstr(h, f, repeated_startstr, &empty_attr); |
| 12265 | upb_handlers_setstring(h, f, repeated_str, &empty_attr); |
| 12266 | upb_handlers_setendstr(h, f, repeated_endstr, &empty_attr); |
| 12267 | } else { |
| 12268 | upb_handlers_setstartstr(h, f, scalar_startstr, &name_attr); |
| 12269 | upb_handlers_setstring(h, f, scalar_str, &empty_attr); |
| 12270 | upb_handlers_setendstr(h, f, scalar_endstr, &empty_attr); |
| 12271 | } |
| 12272 | break; |
| 12273 | case UPB_TYPE_BYTES: |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12274 | /* XXX: this doesn't support strings that span buffers yet. The base64 |
| 12275 | * encoder will need to be made resumable for this to work properly. */ |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12276 | if (upb_fielddef_isseq(f)) { |
| 12277 | upb_handlers_setstring(h, f, repeated_bytes, &empty_attr); |
| 12278 | } else { |
| 12279 | upb_handlers_setstring(h, f, scalar_bytes, &name_attr); |
| 12280 | } |
| 12281 | break; |
| 12282 | case UPB_TYPE_MESSAGE: |
| 12283 | if (upb_fielddef_isseq(f)) { |
| 12284 | upb_handlers_setstartsubmsg(h, f, repeated_startsubmsg, &name_attr); |
| 12285 | } else { |
| 12286 | upb_handlers_setstartsubmsg(h, f, scalar_startsubmsg, &name_attr); |
| 12287 | } |
| 12288 | break; |
| 12289 | } |
| 12290 | |
| 12291 | upb_handlerattr_uninit(&name_attr); |
| 12292 | } |
| 12293 | |
| 12294 | upb_handlerattr_uninit(&empty_attr); |
| 12295 | #undef TYPE |
| 12296 | } |
| 12297 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 12298 | static void json_printer_reset(upb_json_printer *p) { |
| 12299 | p->depth_ = 0; |
| 12300 | } |
| 12301 | |
| 12302 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12303 | /* Public API *****************************************************************/ |
| 12304 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 12305 | upb_json_printer *upb_json_printer_create(upb_env *e, const upb_handlers *h, |
| 12306 | upb_bytessink *output) { |
| 12307 | #ifndef NDEBUG |
| 12308 | size_t size_before = upb_env_bytesallocated(e); |
| 12309 | #endif |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12310 | |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 12311 | upb_json_printer *p = upb_env_malloc(e, sizeof(upb_json_printer)); |
| 12312 | if (!p) return NULL; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12313 | |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12314 | p->output_ = output; |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 12315 | json_printer_reset(p); |
| 12316 | upb_sink_reset(&p->input_, h, p); |
| 12317 | |
Josh Haberman | e8ed021 | 2015-06-08 17:56:03 -0700 | [diff] [blame] | 12318 | /* If this fails, increase the value in printer.h. */ |
Chris Fallin | d326277 | 2015-05-14 18:24:26 -0700 | [diff] [blame] | 12319 | assert(upb_env_bytesallocated(e) - size_before <= UPB_JSON_PRINTER_SIZE); |
| 12320 | return p; |
Chris Fallin | 91473dc | 2014-12-12 15:58:26 -0800 | [diff] [blame] | 12321 | } |
| 12322 | |
| 12323 | upb_sink *upb_json_printer_input(upb_json_printer *p) { |
| 12324 | return &p->input_; |
| 12325 | } |
| 12326 | |
| 12327 | const upb_handlers *upb_json_printer_newhandlers(const upb_msgdef *md, |
| 12328 | const void *owner) { |
| 12329 | return upb_handlers_newfrozen(md, owner, printer_sethandlers, NULL); |
| 12330 | } |