Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 6610ad9 | 1995-01-04 19:07:38 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 9 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 10 | both that copyright notice and this permission notice appear in |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 11 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 12 | Centrum or CWI or Corporation for National Research Initiatives or |
| 13 | CNRI not be used in advertising or publicity pertaining to |
| 14 | distribution of the software without specific, written prior |
| 15 | permission. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 16 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 17 | While CWI is the initial source for this software, a modified version |
| 18 | is made available by the Corporation for National Research Initiatives |
| 19 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 22 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 23 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 24 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 25 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 26 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 27 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 28 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
| 31 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 32 | /* Frame object implementation */ |
| 33 | |
| 34 | #include "allobjects.h" |
| 35 | |
| 36 | #include "compile.h" |
| 37 | #include "frameobject.h" |
| 38 | #include "opcode.h" |
| 39 | #include "structmember.h" |
Guido van Rossum | c113482 | 1995-01-10 10:39:16 +0000 | [diff] [blame] | 40 | #include "bltinmodule.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 41 | |
| 42 | #define OFF(x) offsetof(frameobject, x) |
| 43 | |
| 44 | static struct memberlist frame_memberlist[] = { |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 45 | {"f_back", T_OBJECT, OFF(f_back), RO}, |
| 46 | {"f_code", T_OBJECT, OFF(f_code), RO}, |
Guido van Rossum | c113482 | 1995-01-10 10:39:16 +0000 | [diff] [blame] | 47 | {"f_builtins", T_OBJECT, OFF(f_builtins),RO}, |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 48 | {"f_globals", T_OBJECT, OFF(f_globals), RO}, |
| 49 | {"f_locals", T_OBJECT, OFF(f_locals), RO}, |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 50 | {"f_lasti", T_INT, OFF(f_lasti), RO}, |
| 51 | {"f_lineno", T_INT, OFF(f_lineno), RO}, |
Guido van Rossum | c113482 | 1995-01-10 10:39:16 +0000 | [diff] [blame] | 52 | {"f_restricted",T_INT, OFF(f_restricted),RO}, |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 53 | {"f_trace", T_OBJECT, OFF(f_trace)}, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 54 | {NULL} /* Sentinel */ |
| 55 | }; |
| 56 | |
| 57 | static object * |
| 58 | frame_getattr(f, name) |
| 59 | frameobject *f; |
| 60 | char *name; |
| 61 | { |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 62 | if (strcmp(name, "f_locals") == 0) |
| 63 | fast_2_locals(f); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 64 | return getmember((char *)f, frame_memberlist, name); |
| 65 | } |
| 66 | |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 67 | static int |
| 68 | frame_setattr(f, name, value) |
| 69 | frameobject *f; |
| 70 | char *name; |
| 71 | object *value; |
| 72 | { |
| 73 | return setmember((char *)f, frame_memberlist, name, value); |
| 74 | } |
| 75 | |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 76 | /* Stack frames are allocated and deallocated at a considerable rate. |
| 77 | In an attempt to improve the speed of function calls, we maintain a |
| 78 | separate free list of stack frames (just like integers are |
| 79 | allocated in a special way -- see intobject.c). When a stack frame |
| 80 | is on the free list, only the following members have a meaning: |
| 81 | ob_type == &Frametype |
| 82 | f_back next item on free list, or NULL |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 83 | f_nlocals number of locals |
| 84 | f_stacksize size of value stack |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 85 | Note that the value and block stacks are preserved -- this can save |
| 86 | another malloc() call or two (and two free() calls as well!). |
| 87 | Also note that, unlike for integers, each frame object is a |
| 88 | malloc'ed object in its own right -- it is only the actual calls to |
| 89 | malloc() that we are trying to save here, not the administration. |
| 90 | After all, while a typical program may make millions of calls, a |
| 91 | call depth of more than 20 or 30 is probably already exceptional |
| 92 | unless the program contains run-away recursion. I hope. |
| 93 | */ |
| 94 | |
| 95 | static frameobject *free_list = NULL; |
| 96 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 97 | static void |
| 98 | frame_dealloc(f) |
| 99 | frameobject *f; |
| 100 | { |
| 101 | XDECREF(f->f_back); |
| 102 | XDECREF(f->f_code); |
Guido van Rossum | c113482 | 1995-01-10 10:39:16 +0000 | [diff] [blame] | 103 | XDECREF(f->f_builtins); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 104 | XDECREF(f->f_globals); |
| 105 | XDECREF(f->f_locals); |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 106 | XDECREF(f->f_trace); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 107 | f->f_back = free_list; |
| 108 | free_list = f; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | typeobject Frametype = { |
| 112 | OB_HEAD_INIT(&Typetype) |
| 113 | 0, |
| 114 | "frame", |
| 115 | sizeof(frameobject), |
| 116 | 0, |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 117 | (destructor)frame_dealloc, /*tp_dealloc*/ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 118 | 0, /*tp_print*/ |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 119 | (getattrfunc)frame_getattr, /*tp_getattr*/ |
| 120 | (setattrfunc)frame_setattr, /*tp_setattr*/ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 121 | 0, /*tp_compare*/ |
| 122 | 0, /*tp_repr*/ |
| 123 | 0, /*tp_as_number*/ |
| 124 | 0, /*tp_as_sequence*/ |
| 125 | 0, /*tp_as_mapping*/ |
| 126 | }; |
| 127 | |
| 128 | frameobject * |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 129 | newframeobject(back, code, globals, locals) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 130 | frameobject *back; |
| 131 | codeobject *code; |
| 132 | object *globals; |
| 133 | object *locals; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 134 | { |
Sjoerd Mullender | 5b7f3cd | 1995-04-04 11:47:41 +0000 | [diff] [blame] | 135 | static object *builtin_object; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 136 | frameobject *f; |
Guido van Rossum | c113482 | 1995-01-10 10:39:16 +0000 | [diff] [blame] | 137 | object *builtins; |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 138 | int extras = code->co_stacksize + code->co_nlocals; |
| 139 | |
Sjoerd Mullender | 5b7f3cd | 1995-04-04 11:47:41 +0000 | [diff] [blame] | 140 | if (builtin_object == NULL) { |
Guido van Rossum | b56933e | 1997-01-18 07:58:41 +0000 | [diff] [blame] | 141 | builtin_object = PyString_InternFromString("__builtins__"); |
Sjoerd Mullender | 5b7f3cd | 1995-04-04 11:47:41 +0000 | [diff] [blame] | 142 | if (builtin_object == NULL) |
| 143 | return NULL; |
| 144 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 145 | if ((back != NULL && !is_frameobject(back)) || |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 146 | code == NULL || !is_codeobject(code) || |
| 147 | globals == NULL || !is_dictobject(globals) || |
| 148 | (locals != NULL && !is_dictobject(locals))) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 149 | err_badcall(); |
| 150 | return NULL; |
| 151 | } |
Sjoerd Mullender | 5b7f3cd | 1995-04-04 11:47:41 +0000 | [diff] [blame] | 152 | builtins = mappinglookup(globals, builtin_object); |
Guido van Rossum | b4e7e25 | 1995-01-17 16:27:25 +0000 | [diff] [blame] | 153 | if (builtins != NULL && is_moduleobject(builtins)) |
| 154 | builtins = getmoduledict(builtins); |
Guido van Rossum | c113482 | 1995-01-10 10:39:16 +0000 | [diff] [blame] | 155 | if (builtins == NULL || !is_mappingobject(builtins)) { |
| 156 | err_setstr(TypeError, "bad __builtins__ dictionary"); |
| 157 | return NULL; |
| 158 | } |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 159 | if (free_list == NULL) { |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 160 | f = (frameobject *) |
| 161 | malloc(sizeof(frameobject) + extras*sizeof(object *)); |
Guido van Rossum | 2271bf7 | 1995-07-18 14:30:34 +0000 | [diff] [blame] | 162 | if (f == NULL) |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 163 | return (PyFrameObject *)err_nomem(); |
| 164 | f->ob_type = &Frametype; |
| 165 | NEWREF(f); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 166 | } |
| 167 | else { |
| 168 | f = free_list; |
| 169 | free_list = free_list->f_back; |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 170 | if (f->f_nlocals + f->f_stacksize < extras) { |
| 171 | f = realloc(f, sizeof(frameobject) + extras*sizeof(object *)); |
| 172 | if (f == NULL) |
| 173 | return (PyFrameObject *)err_nomem(); |
| 174 | } |
Sjoerd Mullender | f64992e | 1993-08-03 15:11:36 +0000 | [diff] [blame] | 175 | f->ob_type = &Frametype; |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 176 | NEWREF(f); |
| 177 | } |
Guido van Rossum | 2271bf7 | 1995-07-18 14:30:34 +0000 | [diff] [blame] | 178 | XINCREF(back); |
| 179 | f->f_back = back; |
| 180 | INCREF(code); |
| 181 | f->f_code = code; |
| 182 | XINCREF(builtins); |
| 183 | f->f_builtins = builtins; |
| 184 | INCREF(globals); |
| 185 | f->f_globals = globals; |
Guido van Rossum | bdd207a | 1995-07-26 16:14:30 +0000 | [diff] [blame] | 186 | if (code->co_flags & CO_NEWLOCALS) { |
| 187 | if (code->co_flags & CO_OPTIMIZED) |
| 188 | locals = NULL; /* Let fast_2_locals handle it */ |
| 189 | else { |
| 190 | locals = newdictobject(); |
| 191 | if (locals == NULL) { |
| 192 | DECREF(f); |
| 193 | return NULL; |
| 194 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 195 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 196 | } |
Guido van Rossum | 2271bf7 | 1995-07-18 14:30:34 +0000 | [diff] [blame] | 197 | else { |
| 198 | if (locals == NULL) |
| 199 | locals = globals; |
| 200 | INCREF(locals); |
| 201 | } |
| 202 | f->f_locals = locals; |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 203 | f->f_trace = NULL; |
| 204 | |
Guido van Rossum | 2271bf7 | 1995-07-18 14:30:34 +0000 | [diff] [blame] | 205 | f->f_lasti = 0; |
| 206 | f->f_lineno = -1; |
| 207 | f->f_restricted = (builtins != getbuiltindict()); |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 208 | f->f_iblock = 0; |
| 209 | f->f_nlocals = code->co_nlocals; |
| 210 | f->f_stacksize = code->co_stacksize; |
| 211 | |
| 212 | while (--extras >= 0) |
| 213 | f->f_localsplus[extras] = NULL; |
| 214 | |
| 215 | f->f_valuestack = f->f_localsplus + f->f_nlocals; |
| 216 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 217 | return f; |
| 218 | } |
| 219 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 220 | /* Block management */ |
| 221 | |
| 222 | void |
| 223 | setup_block(f, type, handler, level) |
| 224 | frameobject *f; |
| 225 | int type; |
| 226 | int handler; |
| 227 | int level; |
| 228 | { |
| 229 | block *b; |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 230 | if (f->f_iblock >= CO_MAXBLOCKS) |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 231 | fatal("XXX block stack overflow"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 232 | b = &f->f_blockstack[f->f_iblock++]; |
| 233 | b->b_type = type; |
| 234 | b->b_level = level; |
| 235 | b->b_handler = handler; |
| 236 | } |
| 237 | |
| 238 | block * |
| 239 | pop_block(f) |
| 240 | frameobject *f; |
| 241 | { |
| 242 | block *b; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 243 | if (f->f_iblock <= 0) |
| 244 | fatal("XXX block stack underflow"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 245 | b = &f->f_blockstack[--f->f_iblock]; |
| 246 | return b; |
| 247 | } |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 248 | |
| 249 | /* Convert between "fast" version of locals and dictionary version */ |
| 250 | |
| 251 | void |
| 252 | fast_2_locals(f) |
| 253 | frameobject *f; |
| 254 | { |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 255 | /* Merge fast locals into f->f_locals */ |
| 256 | object *locals, *map; |
| 257 | object **fast; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 258 | object *error_type, *error_value, *error_traceback; |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 259 | int j; |
| 260 | if (f == NULL) |
| 261 | return; |
Guido van Rossum | 2271bf7 | 1995-07-18 14:30:34 +0000 | [diff] [blame] | 262 | locals = f->f_locals; |
| 263 | if (locals == NULL) { |
| 264 | locals = f->f_locals = newdictobject(); |
| 265 | if (locals == NULL) { |
| 266 | err_clear(); /* Can't report it :-( */ |
| 267 | return; |
| 268 | } |
| 269 | } |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 270 | if (f->f_nlocals == 0) |
Guido van Rossum | bdd207a | 1995-07-26 16:14:30 +0000 | [diff] [blame] | 271 | return; |
| 272 | map = f->f_code->co_varnames; |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 273 | if (!is_dictobject(locals) || !is_tupleobject(map)) |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 274 | return; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 275 | err_fetch(&error_type, &error_value, &error_traceback); |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 276 | fast = f->f_localsplus; |
| 277 | j = gettuplesize(map); |
| 278 | if (j > f->f_nlocals) |
| 279 | j = f->f_nlocals; |
| 280 | for (; --j >= 0; ) { |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 281 | object *key = gettupleitem(map, j); |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 282 | object *value = fast[j]; |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 283 | if (value == NULL) { |
| 284 | err_clear(); |
| 285 | if (dict2remove(locals, key) != 0) |
| 286 | err_clear(); |
| 287 | } |
| 288 | else { |
| 289 | if (dict2insert(locals, key, value) != 0) |
| 290 | err_clear(); |
| 291 | } |
| 292 | } |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 293 | err_restore(error_type, error_value, error_traceback); |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | void |
| 297 | locals_2_fast(f, clear) |
| 298 | frameobject *f; |
| 299 | int clear; |
| 300 | { |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 301 | /* Merge f->f_locals into fast locals */ |
| 302 | object *locals, *map; |
| 303 | object **fast; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 304 | object *error_type, *error_value, *error_traceback; |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 305 | int j; |
| 306 | if (f == NULL) |
| 307 | return; |
| 308 | locals = f->f_locals; |
Guido van Rossum | 2271bf7 | 1995-07-18 14:30:34 +0000 | [diff] [blame] | 309 | map = f->f_code->co_varnames; |
Guido van Rossum | 3bb63a8 | 1997-01-20 04:29:16 +0000 | [diff] [blame] | 310 | if (locals == NULL || f->f_code->co_nlocals == 0) |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 311 | return; |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 312 | if (!is_dictobject(locals) || !is_tupleobject(map)) |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 313 | return; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 314 | err_fetch(&error_type, &error_value, &error_traceback); |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 315 | fast = f->f_localsplus; |
| 316 | j = gettuplesize(map); |
| 317 | if (j > f->f_nlocals) |
| 318 | j = f->f_nlocals; |
| 319 | for (; --j >= 0; ) { |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 320 | object *key = gettupleitem(map, j); |
| 321 | object *value = dict2lookup(locals, key); |
| 322 | if (value == NULL) |
| 323 | err_clear(); |
| 324 | else |
| 325 | INCREF(value); |
Guido van Rossum | f3e85a0 | 1997-01-20 04:20:52 +0000 | [diff] [blame] | 326 | if (value != NULL || clear) { |
| 327 | XDECREF(fast[j]); |
| 328 | XINCREF(value); |
| 329 | fast[j] = value; |
| 330 | } |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 331 | } |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 332 | err_restore(error_type, error_value, error_traceback); |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 333 | } |