Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2 | /* Module support implementation */ |
| 3 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 4 | #include "Python.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 5 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 6 | #define FLAG_SIZE_T 1 |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 7 | typedef double va_double; |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 8 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 9 | static PyObject *va_build_value(const char *, va_list, int); |
| 10 | |
Guido van Rossum | 2e58ff3 | 1997-11-19 18:53:33 +0000 | [diff] [blame] | 11 | /* Package context -- the full module name for package imports */ |
Serhiy Storchaka | b57d9ea | 2016-11-21 10:25:54 +0200 | [diff] [blame] | 12 | const char *_Py_PackageContext = NULL; |
Guido van Rossum | 2e58ff3 | 1997-11-19 18:53:33 +0000 | [diff] [blame] | 13 | |
Guido van Rossum | bf80e54 | 1993-02-08 15:49:17 +0000 | [diff] [blame] | 14 | /* Helper for mkvalue() to scan the length of a format */ |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 15 | |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 16 | static Py_ssize_t |
Victor Stinner | b551b6c | 2016-12-09 00:27:22 +0100 | [diff] [blame^] | 17 | countformat(const char *format, char endchar) |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 18 | { |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 19 | Py_ssize_t count = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 20 | int level = 0; |
| 21 | while (level > 0 || *format != endchar) { |
| 22 | switch (*format) { |
| 23 | case '\0': |
| 24 | /* Premature end */ |
| 25 | PyErr_SetString(PyExc_SystemError, |
| 26 | "unmatched paren in format"); |
| 27 | return -1; |
| 28 | case '(': |
| 29 | case '[': |
| 30 | case '{': |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 31 | if (level == 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 32 | count++; |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 33 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 34 | level++; |
| 35 | break; |
| 36 | case ')': |
| 37 | case ']': |
| 38 | case '}': |
| 39 | level--; |
| 40 | break; |
| 41 | case '#': |
| 42 | case '&': |
| 43 | case ',': |
| 44 | case ':': |
| 45 | case ' ': |
| 46 | case '\t': |
| 47 | break; |
| 48 | default: |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 49 | if (level == 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 50 | count++; |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 51 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 52 | } |
| 53 | format++; |
| 54 | } |
| 55 | return count; |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 59 | /* Generic function to create a value -- the inverse of getargs() */ |
| 60 | /* After an original idea and first implementation by Steven Miale */ |
| 61 | |
Victor Stinner | b551b6c | 2016-12-09 00:27:22 +0100 | [diff] [blame^] | 62 | static PyObject *do_mktuple(const char**, va_list *, char, Py_ssize_t, int); |
| 63 | static PyObject *do_mklist(const char**, va_list *, char, Py_ssize_t, int); |
| 64 | static PyObject *do_mkdict(const char**, va_list *, char, Py_ssize_t, int); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 65 | static PyObject *do_mkvalue(const char**, va_list *, int); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 66 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 67 | |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 68 | static void |
Victor Stinner | b551b6c | 2016-12-09 00:27:22 +0100 | [diff] [blame^] | 69 | do_ignore(const char **p_format, va_list *p_va, char endchar, Py_ssize_t n, int flags) |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 70 | { |
| 71 | PyObject *v; |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 72 | Py_ssize_t i; |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 73 | assert(PyErr_Occurred()); |
| 74 | v = PyTuple_New(n); |
| 75 | for (i = 0; i < n; i++) { |
| 76 | PyObject *exception, *value, *tb, *w; |
| 77 | |
| 78 | PyErr_Fetch(&exception, &value, &tb); |
| 79 | w = do_mkvalue(p_format, p_va, flags); |
| 80 | PyErr_Restore(exception, value, tb); |
| 81 | if (w != NULL) { |
| 82 | if (v != NULL) { |
| 83 | PyTuple_SET_ITEM(v, i, w); |
| 84 | } |
| 85 | else { |
| 86 | Py_DECREF(w); |
| 87 | } |
| 88 | } |
| 89 | } |
| 90 | Py_XDECREF(v); |
| 91 | if (**p_format != endchar) { |
| 92 | PyErr_SetString(PyExc_SystemError, |
| 93 | "Unmatched paren in format"); |
| 94 | return; |
| 95 | } |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 96 | if (endchar) { |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 97 | ++*p_format; |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 98 | } |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 99 | } |
| 100 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 101 | static PyObject * |
Victor Stinner | b551b6c | 2016-12-09 00:27:22 +0100 | [diff] [blame^] | 102 | do_mkdict(const char **p_format, va_list *p_va, char endchar, Py_ssize_t n, int flags) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 103 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 104 | PyObject *d; |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 105 | Py_ssize_t i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 106 | if (n < 0) |
| 107 | return NULL; |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 108 | if (n % 2) { |
| 109 | PyErr_SetString(PyExc_SystemError, |
| 110 | "Bad dict format"); |
| 111 | do_ignore(p_format, p_va, endchar, n, flags); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 112 | return NULL; |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 113 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 114 | /* Note that we can't bail immediately on error as this will leak |
| 115 | refcounts on any 'N' arguments. */ |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 116 | if ((d = PyDict_New()) == NULL) { |
| 117 | do_ignore(p_format, p_va, endchar, n, flags); |
| 118 | return NULL; |
| 119 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 120 | for (i = 0; i < n; i+= 2) { |
| 121 | PyObject *k, *v; |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 122 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 123 | k = do_mkvalue(p_format, p_va, flags); |
| 124 | if (k == NULL) { |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 125 | do_ignore(p_format, p_va, endchar, n - i - 1, flags); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 126 | Py_DECREF(d); |
| 127 | return NULL; |
| 128 | } |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 129 | v = do_mkvalue(p_format, p_va, flags); |
| 130 | if (v == NULL || PyDict_SetItem(d, k, v) < 0) { |
| 131 | do_ignore(p_format, p_va, endchar, n - i - 2, flags); |
| 132 | Py_DECREF(k); |
| 133 | Py_XDECREF(v); |
| 134 | Py_DECREF(d); |
| 135 | return NULL; |
| 136 | } |
| 137 | Py_DECREF(k); |
| 138 | Py_DECREF(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 139 | } |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 140 | if (**p_format != endchar) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 141 | Py_DECREF(d); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 142 | PyErr_SetString(PyExc_SystemError, |
| 143 | "Unmatched paren in format"); |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 144 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 145 | } |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 146 | if (endchar) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 147 | ++*p_format; |
| 148 | return d; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 149 | } |
| 150 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 151 | static PyObject * |
Victor Stinner | b551b6c | 2016-12-09 00:27:22 +0100 | [diff] [blame^] | 152 | do_mklist(const char **p_format, va_list *p_va, char endchar, Py_ssize_t n, int flags) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 153 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 154 | PyObject *v; |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 155 | Py_ssize_t i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 156 | if (n < 0) |
| 157 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 158 | /* Note that we can't bail immediately on error as this will leak |
| 159 | refcounts on any 'N' arguments. */ |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 160 | v = PyList_New(n); |
| 161 | if (v == NULL) { |
| 162 | do_ignore(p_format, p_va, endchar, n, flags); |
| 163 | return NULL; |
| 164 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 165 | for (i = 0; i < n; i++) { |
| 166 | PyObject *w = do_mkvalue(p_format, p_va, flags); |
| 167 | if (w == NULL) { |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 168 | do_ignore(p_format, p_va, endchar, n - i - 1, flags); |
| 169 | Py_DECREF(v); |
| 170 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 171 | } |
| 172 | PyList_SET_ITEM(v, i, w); |
| 173 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 174 | if (**p_format != endchar) { |
| 175 | Py_DECREF(v); |
| 176 | PyErr_SetString(PyExc_SystemError, |
| 177 | "Unmatched paren in format"); |
| 178 | return NULL; |
| 179 | } |
| 180 | if (endchar) |
| 181 | ++*p_format; |
| 182 | return v; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 183 | } |
| 184 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 185 | static PyObject * |
Victor Stinner | b551b6c | 2016-12-09 00:27:22 +0100 | [diff] [blame^] | 186 | do_mktuple(const char **p_format, va_list *p_va, char endchar, Py_ssize_t n, int flags) |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 187 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 188 | PyObject *v; |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 189 | Py_ssize_t i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 190 | if (n < 0) |
| 191 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 192 | /* Note that we can't bail immediately on error as this will leak |
| 193 | refcounts on any 'N' arguments. */ |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 194 | if ((v = PyTuple_New(n)) == NULL) { |
| 195 | do_ignore(p_format, p_va, endchar, n, flags); |
| 196 | return NULL; |
| 197 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 198 | for (i = 0; i < n; i++) { |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 199 | PyObject *w = do_mkvalue(p_format, p_va, flags); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 200 | if (w == NULL) { |
Serhiy Storchaka | 13e602e | 2016-05-20 22:31:14 +0300 | [diff] [blame] | 201 | do_ignore(p_format, p_va, endchar, n - i - 1, flags); |
| 202 | Py_DECREF(v); |
| 203 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 204 | } |
| 205 | PyTuple_SET_ITEM(v, i, w); |
| 206 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 207 | if (**p_format != endchar) { |
| 208 | Py_DECREF(v); |
| 209 | PyErr_SetString(PyExc_SystemError, |
| 210 | "Unmatched paren in format"); |
| 211 | return NULL; |
| 212 | } |
| 213 | if (endchar) |
| 214 | ++*p_format; |
| 215 | return v; |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 216 | } |
| 217 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 218 | static PyObject * |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 219 | do_mkvalue(const char **p_format, va_list *p_va, int flags) |
Guido van Rossum | 899dcf3 | 1992-05-15 11:04:59 +0000 | [diff] [blame] | 220 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 221 | for (;;) { |
| 222 | switch (*(*p_format)++) { |
| 223 | case '(': |
| 224 | return do_mktuple(p_format, p_va, ')', |
| 225 | countformat(*p_format, ')'), flags); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 226 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 227 | case '[': |
| 228 | return do_mklist(p_format, p_va, ']', |
| 229 | countformat(*p_format, ']'), flags); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 230 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 231 | case '{': |
| 232 | return do_mkdict(p_format, p_va, '}', |
| 233 | countformat(*p_format, '}'), flags); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 234 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 235 | case 'b': |
| 236 | case 'B': |
| 237 | case 'h': |
| 238 | case 'i': |
| 239 | return PyLong_FromLong((long)va_arg(*p_va, int)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 240 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 241 | case 'H': |
| 242 | return PyLong_FromLong((long)va_arg(*p_va, unsigned int)); |
| 243 | |
| 244 | case 'I': |
| 245 | { |
| 246 | unsigned int n; |
| 247 | n = va_arg(*p_va, unsigned int); |
| 248 | return PyLong_FromUnsignedLong(n); |
| 249 | } |
| 250 | |
| 251 | case 'n': |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 252 | #if SIZEOF_SIZE_T!=SIZEOF_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 253 | return PyLong_FromSsize_t(va_arg(*p_va, Py_ssize_t)); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 254 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 255 | /* Fall through from 'n' to 'l' if Py_ssize_t is long */ |
| 256 | case 'l': |
| 257 | return PyLong_FromLong(va_arg(*p_va, long)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 258 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 259 | case 'k': |
| 260 | { |
| 261 | unsigned long n; |
| 262 | n = va_arg(*p_va, unsigned long); |
| 263 | return PyLong_FromUnsignedLong(n); |
| 264 | } |
Jack Jansen | dbd6503 | 2003-04-17 22:01:10 +0000 | [diff] [blame] | 265 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 266 | case 'L': |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 267 | return PyLong_FromLongLong((long long)va_arg(*p_va, long long)); |
Jack Jansen | dbd6503 | 2003-04-17 22:01:10 +0000 | [diff] [blame] | 268 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 269 | case 'K': |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 270 | return PyLong_FromUnsignedLongLong((long long)va_arg(*p_va, unsigned long long)); |
Benjamin Peterson | ed4aa83 | 2016-09-05 17:44:18 -0700 | [diff] [blame] | 271 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 272 | case 'u': |
| 273 | { |
| 274 | PyObject *v; |
| 275 | Py_UNICODE *u = va_arg(*p_va, Py_UNICODE *); |
| 276 | Py_ssize_t n; |
| 277 | if (**p_format == '#') { |
| 278 | ++*p_format; |
| 279 | if (flags & FLAG_SIZE_T) |
| 280 | n = va_arg(*p_va, Py_ssize_t); |
| 281 | else |
| 282 | n = va_arg(*p_va, int); |
| 283 | } |
| 284 | else |
| 285 | n = -1; |
| 286 | if (u == NULL) { |
| 287 | v = Py_None; |
| 288 | Py_INCREF(v); |
| 289 | } |
| 290 | else { |
| 291 | if (n < 0) |
Serhiy Storchaka | 460bd0d | 2016-11-20 12:16:46 +0200 | [diff] [blame] | 292 | n = wcslen(u); |
| 293 | v = PyUnicode_FromWideChar(u, n); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 294 | } |
| 295 | return v; |
| 296 | } |
| 297 | case 'f': |
| 298 | case 'd': |
| 299 | return PyFloat_FromDouble( |
| 300 | (double)va_arg(*p_va, va_double)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 301 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 302 | case 'D': |
| 303 | return PyComplex_FromCComplex( |
| 304 | *((Py_complex *)va_arg(*p_va, Py_complex *))); |
Fred Drake | aec7924 | 2001-03-12 21:03:26 +0000 | [diff] [blame] | 305 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 306 | case 'c': |
| 307 | { |
| 308 | char p[1]; |
| 309 | p[0] = (char)va_arg(*p_va, int); |
| 310 | return PyBytes_FromStringAndSize(p, 1); |
| 311 | } |
| 312 | case 'C': |
| 313 | { |
| 314 | int i = va_arg(*p_va, int); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 315 | return PyUnicode_FromOrdinal(i); |
| 316 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 317 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 318 | case 's': |
| 319 | case 'z': |
Victor Stinner | 7eeb5b5 | 2010-06-07 19:57:46 +0000 | [diff] [blame] | 320 | case 'U': /* XXX deprecated alias */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 321 | { |
| 322 | PyObject *v; |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 323 | const char *str = va_arg(*p_va, const char *); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 324 | Py_ssize_t n; |
| 325 | if (**p_format == '#') { |
| 326 | ++*p_format; |
| 327 | if (flags & FLAG_SIZE_T) |
| 328 | n = va_arg(*p_va, Py_ssize_t); |
| 329 | else |
| 330 | n = va_arg(*p_va, int); |
| 331 | } |
| 332 | else |
| 333 | n = -1; |
| 334 | if (str == NULL) { |
| 335 | v = Py_None; |
| 336 | Py_INCREF(v); |
| 337 | } |
| 338 | else { |
| 339 | if (n < 0) { |
| 340 | size_t m = strlen(str); |
| 341 | if (m > PY_SSIZE_T_MAX) { |
| 342 | PyErr_SetString(PyExc_OverflowError, |
| 343 | "string too long for Python string"); |
| 344 | return NULL; |
| 345 | } |
| 346 | n = (Py_ssize_t)m; |
| 347 | } |
| 348 | v = PyUnicode_FromStringAndSize(str, n); |
| 349 | } |
| 350 | return v; |
| 351 | } |
Walter Dörwald | d203431 | 2007-05-18 16:29:38 +0000 | [diff] [blame] | 352 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 353 | case 'y': |
| 354 | { |
| 355 | PyObject *v; |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 356 | const char *str = va_arg(*p_va, const char *); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 357 | Py_ssize_t n; |
| 358 | if (**p_format == '#') { |
| 359 | ++*p_format; |
| 360 | if (flags & FLAG_SIZE_T) |
| 361 | n = va_arg(*p_va, Py_ssize_t); |
| 362 | else |
| 363 | n = va_arg(*p_va, int); |
| 364 | } |
| 365 | else |
| 366 | n = -1; |
| 367 | if (str == NULL) { |
| 368 | v = Py_None; |
| 369 | Py_INCREF(v); |
| 370 | } |
| 371 | else { |
| 372 | if (n < 0) { |
| 373 | size_t m = strlen(str); |
| 374 | if (m > PY_SSIZE_T_MAX) { |
| 375 | PyErr_SetString(PyExc_OverflowError, |
| 376 | "string too long for Python bytes"); |
| 377 | return NULL; |
| 378 | } |
| 379 | n = (Py_ssize_t)m; |
| 380 | } |
| 381 | v = PyBytes_FromStringAndSize(str, n); |
| 382 | } |
| 383 | return v; |
| 384 | } |
Walter Dörwald | 612344f | 2007-05-04 19:28:21 +0000 | [diff] [blame] | 385 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 386 | case 'N': |
| 387 | case 'S': |
| 388 | case 'O': |
| 389 | if (**p_format == '&') { |
| 390 | typedef PyObject *(*converter)(void *); |
| 391 | converter func = va_arg(*p_va, converter); |
| 392 | void *arg = va_arg(*p_va, void *); |
| 393 | ++*p_format; |
| 394 | return (*func)(arg); |
| 395 | } |
| 396 | else { |
| 397 | PyObject *v; |
| 398 | v = va_arg(*p_va, PyObject *); |
| 399 | if (v != NULL) { |
| 400 | if (*(*p_format - 1) != 'N') |
| 401 | Py_INCREF(v); |
| 402 | } |
| 403 | else if (!PyErr_Occurred()) |
| 404 | /* If a NULL was passed |
| 405 | * because a call that should |
| 406 | * have constructed a value |
| 407 | * failed, that's OK, and we |
| 408 | * pass the error on; but if |
| 409 | * no error occurred it's not |
| 410 | * clear that the caller knew |
| 411 | * what she was doing. */ |
| 412 | PyErr_SetString(PyExc_SystemError, |
| 413 | "NULL object passed to Py_BuildValue"); |
| 414 | return v; |
| 415 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 416 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 417 | case ':': |
| 418 | case ',': |
| 419 | case ' ': |
| 420 | case '\t': |
| 421 | break; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 422 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 423 | default: |
| 424 | PyErr_SetString(PyExc_SystemError, |
| 425 | "bad format char passed to Py_BuildValue"); |
| 426 | return NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 427 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 428 | } |
| 429 | } |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 430 | } |
| 431 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 432 | |
Fred Drake | ceead6d | 2003-01-30 15:08:25 +0000 | [diff] [blame] | 433 | PyObject * |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 434 | Py_BuildValue(const char *format, ...) |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 435 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 436 | va_list va; |
| 437 | PyObject* retval; |
| 438 | va_start(va, format); |
| 439 | retval = va_build_value(format, va, 0); |
| 440 | va_end(va); |
| 441 | return retval; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 442 | } |
| 443 | |
| 444 | PyObject * |
| 445 | _Py_BuildValue_SizeT(const char *format, ...) |
| 446 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 447 | va_list va; |
| 448 | PyObject* retval; |
| 449 | va_start(va, format); |
| 450 | retval = va_build_value(format, va, FLAG_SIZE_T); |
| 451 | va_end(va); |
| 452 | return retval; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 453 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 454 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 455 | PyObject * |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 456 | Py_VaBuildValue(const char *format, va_list va) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 457 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 458 | return va_build_value(format, va, 0); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 459 | } |
| 460 | |
| 461 | PyObject * |
| 462 | _Py_VaBuildValue_SizeT(const char *format, va_list va) |
| 463 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 464 | return va_build_value(format, va, FLAG_SIZE_T); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | static PyObject * |
| 468 | va_build_value(const char *format, va_list va, int flags) |
| 469 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 470 | const char *f = format; |
Victor Stinner | e9aae2d | 2016-12-09 00:24:47 +0100 | [diff] [blame] | 471 | Py_ssize_t n = countformat(f, '\0'); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 472 | va_list lva; |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 473 | PyObject *retval; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 474 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 475 | if (n < 0) |
| 476 | return NULL; |
| 477 | if (n == 0) { |
| 478 | Py_INCREF(Py_None); |
| 479 | return Py_None; |
| 480 | } |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 481 | va_copy(lva, va); |
| 482 | if (n == 1) { |
| 483 | retval = do_mkvalue(&f, &lva, flags); |
| 484 | } else { |
| 485 | retval = do_mktuple(&f, &lva, '\0', n, flags); |
| 486 | } |
| 487 | va_end(lva); |
| 488 | return retval; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 489 | } |
| 490 | |
| 491 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 492 | PyObject * |
Victor Stinner | 2d0eb65 | 2016-12-06 16:27:24 +0100 | [diff] [blame] | 493 | PyEval_CallFunction(PyObject *callable, const char *format, ...) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 494 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 495 | va_list vargs; |
| 496 | PyObject *args; |
| 497 | PyObject *res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 498 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 499 | va_start(vargs, format); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 500 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 501 | args = Py_VaBuildValue(format, vargs); |
| 502 | va_end(vargs); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 503 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 504 | if (args == NULL) |
| 505 | return NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 506 | |
Victor Stinner | 2d0eb65 | 2016-12-06 16:27:24 +0100 | [diff] [blame] | 507 | res = PyEval_CallObject(callable, args); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 508 | Py_DECREF(args); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 509 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 510 | return res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 511 | } |
| 512 | |
| 513 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 514 | PyObject * |
Victor Stinner | 2d0eb65 | 2016-12-06 16:27:24 +0100 | [diff] [blame] | 515 | PyEval_CallMethod(PyObject *obj, const char *name, const char *format, ...) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 516 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 517 | va_list vargs; |
| 518 | PyObject *meth; |
| 519 | PyObject *args; |
| 520 | PyObject *res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 521 | |
Victor Stinner | 2d0eb65 | 2016-12-06 16:27:24 +0100 | [diff] [blame] | 522 | meth = PyObject_GetAttrString(obj, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 523 | if (meth == NULL) |
| 524 | return NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 525 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 526 | va_start(vargs, format); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 527 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 528 | args = Py_VaBuildValue(format, vargs); |
| 529 | va_end(vargs); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 530 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 531 | if (args == NULL) { |
| 532 | Py_DECREF(meth); |
| 533 | return NULL; |
| 534 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 535 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 536 | res = PyEval_CallObject(meth, args); |
| 537 | Py_DECREF(meth); |
| 538 | Py_DECREF(args); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 539 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 540 | return res; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 541 | } |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 542 | |
| 543 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 544 | PyModule_AddObject(PyObject *m, const char *name, PyObject *o) |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 545 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 546 | PyObject *dict; |
| 547 | if (!PyModule_Check(m)) { |
| 548 | PyErr_SetString(PyExc_TypeError, |
| 549 | "PyModule_AddObject() needs module as first arg"); |
| 550 | return -1; |
| 551 | } |
| 552 | if (!o) { |
| 553 | if (!PyErr_Occurred()) |
| 554 | PyErr_SetString(PyExc_TypeError, |
| 555 | "PyModule_AddObject() needs non-NULL value"); |
| 556 | return -1; |
| 557 | } |
Jeremy Hylton | c44dbc4 | 2003-06-21 21:35:25 +0000 | [diff] [blame] | 558 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 559 | dict = PyModule_GetDict(m); |
| 560 | if (dict == NULL) { |
| 561 | /* Internal error -- modules must have a dict! */ |
| 562 | PyErr_Format(PyExc_SystemError, "module '%s' has no __dict__", |
| 563 | PyModule_GetName(m)); |
| 564 | return -1; |
| 565 | } |
| 566 | if (PyDict_SetItemString(dict, name, o)) |
| 567 | return -1; |
| 568 | Py_DECREF(o); |
| 569 | return 0; |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 570 | } |
| 571 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 572 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 573 | PyModule_AddIntConstant(PyObject *m, const char *name, long value) |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 574 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 575 | PyObject *o = PyLong_FromLong(value); |
| 576 | if (!o) |
| 577 | return -1; |
| 578 | if (PyModule_AddObject(m, name, o) == 0) |
| 579 | return 0; |
| 580 | Py_DECREF(o); |
| 581 | return -1; |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 582 | } |
| 583 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 584 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 585 | PyModule_AddStringConstant(PyObject *m, const char *name, const char *value) |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 586 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 587 | PyObject *o = PyUnicode_FromString(value); |
| 588 | if (!o) |
| 589 | return -1; |
| 590 | if (PyModule_AddObject(m, name, o) == 0) |
| 591 | return 0; |
| 592 | Py_DECREF(o); |
| 593 | return -1; |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 594 | } |