Mercurial > cpython-lru_cache-weakref
annotate Python/bltinmodule.c @ 1263:65a1e4e9cd54 legacy-trunk
* Fixed some subtleties with fastlocals. You can no longer access
f_fastlocals in a traceback object (this is a core dump hazard
if there are <nil> entries), but instead eval_code() merges the fast
locals back into the locals dictionary if it looks like the local
variables will be retained. Also, the merge routines save
exceptions since this is sometimes needed (alas!).
* Added id() to bltinmodule.c, which returns an object's address
(identity). Useful to walk arbitrary data structures containing
cycles.
* Added compile() to bltinmodule.c and compile_string() to
pythonrun.[ch]: support to exec/eval arbitrary code objects. The
code that defaults globals and locals is moved from run_node in
pythonrun.c (which is now identical to eval_node) to eval_code in
ceval.c. [XXX For elegance a clean-up session is necessary.]
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Tue, 30 Mar 1993 17:46:03 +0000 |
| parents | 1cabc2b6c970 |
| children | 9fed5726a36d |
| rev | line source |
|---|---|
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1 /*********************************************************** |
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2 Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum, |
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3 Amsterdam, The Netherlands. |
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4 |
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5 All Rights Reserved |
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6 |
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7 Permission to use, copy, modify, and distribute this software and its |
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8 documentation for any purpose and without fee is hereby granted, |
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9 provided that the above copyright notice appear in all copies and that |
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10 both that copyright notice and this permission notice appear in |
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11 supporting documentation, and that the names of Stichting Mathematisch |
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12 Centrum or CWI not be used in advertising or publicity pertaining to |
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13 distribution of the software without specific, written prior permission. |
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14 |
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15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
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16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
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18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
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21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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22 |
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23 ******************************************************************/ |
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24 |
| 86 | 25 /* Built-in functions */ |
| 26 | |
| 27 #include "allobjects.h" | |
| 28 | |
| 29 #include "node.h" | |
| 30 #include "graminit.h" | |
| 31 #include "errcode.h" | |
| 32 #include "sysmodule.h" | |
| 119 | 33 #include "bltinmodule.h" |
| 86 | 34 #include "import.h" |
| 35 #include "pythonrun.h" | |
| 36 #include "ceval.h" | |
| 37 #include "modsupport.h" | |
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38 #include "compile.h" |
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39 #include "eval.h" |
| 86 | 40 |
| 41 static object * | |
| 42 builtin_abs(self, v) | |
| 43 object *self; | |
| 44 object *v; | |
| 45 { | |
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46 number_methods *nm; |
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47 if (v == NULL || (nm = v->ob_type->tp_as_number) == NULL) { |
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48 err_setstr(TypeError, "abs() requires numeric argument"); |
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49 return NULL; |
| 86 | 50 } |
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51 return (*nm->nb_absolute)(v); |
| 86 | 52 } |
| 53 | |
| 54 static object * | |
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55 builtin_apply(self, args) |
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56 object *self; |
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57 object *args; |
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58 { |
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59 object *func, *arglist; |
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60 if (!getargs(args, "(OO)", &func, &arglist)) |
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61 return NULL; |
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62 return call_object(func, arglist); |
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63 } |
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64 |
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65 static object * |
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66 builtin_chr(self, args) |
| 86 | 67 object *self; |
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68 object *args; |
| 86 | 69 { |
| 70 long x; | |
| 71 char s[1]; | |
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72 if (!getargs(args, "l", &x)) |
| 86 | 73 return NULL; |
| 74 if (x < 0 || x >= 256) { | |
| 463 | 75 err_setstr(ValueError, "chr() arg not in range(256)"); |
| 86 | 76 return NULL; |
| 77 } | |
| 78 s[0] = x; | |
| 79 return newsizedstringobject(s, 1); | |
| 80 } | |
| 81 | |
| 82 static object * | |
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83 builtin_cmp(self, args) |
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84 object *self; |
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85 object *args; |
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86 { |
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87 object *a, *b; |
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88 if (!getargs(args, "(OO)", &a, &b)) |
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89 return NULL; |
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90 return newintobject((long)cmpobject(a, b)); |
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91 } |
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92 |
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93 static object * |
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94 builtin_coerce(self, args) |
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95 object *self; |
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96 object *args; |
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97 { |
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98 object *v, *w; |
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99 object *res; |
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100 |
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101 if (!getargs(args, "(OO)", &v, &w)) |
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102 return NULL; |
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103 if (coerce(&v, &w) < 0) |
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104 return NULL; |
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105 res = mkvalue("(OO)", v, w); |
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106 DECREF(v); |
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107 DECREF(w); |
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108 return res; |
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109 } |
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110 |
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111 static object * |
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112 builtin_compile(self, args) |
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113 object *self; |
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114 object *args; |
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115 { |
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116 char *str; |
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117 char *filename; |
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118 char *startstr; |
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119 int start; |
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120 if (!getargs(args, "(sss)", &str, &filename, &startstr)) |
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121 return NULL; |
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122 if (strcmp(startstr, "exec") == 0) |
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123 start = file_input; |
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124 else if (strcmp(startstr, "eval") == 0) |
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125 start = eval_input; |
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126 else { |
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127 err_setstr(ValueError, |
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128 "compile() mode must be 'exec' or 'eval'"); |
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129 return NULL; |
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130 } |
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131 return compile_string(str, filename, start); |
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132 } |
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133 |
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134 static object * |
| 86 | 135 builtin_dir(self, v) |
| 136 object *self; | |
| 137 object *v; | |
| 138 { | |
| 139 object *d; | |
| 140 if (v == NULL) { | |
| 141 d = getlocals(); | |
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142 INCREF(d); |
| 86 | 143 } |
| 144 else { | |
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145 d = getattr(v, "__dict__"); |
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146 if (d == NULL) { |
| 86 | 147 err_setstr(TypeError, |
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148 "dir() argument must have __dict__ attribute"); |
| 86 | 149 return NULL; |
| 150 } | |
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151 } |
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152 if (is_dictobject(d)) { |
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153 v = getdictkeys(d); |
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154 if (sortlist(v) != 0) { |
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155 DECREF(v); |
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156 v = NULL; |
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157 } |
| 86 | 158 } |
|
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159 else { |
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160 v = newlistobject(0); |
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161 } |
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162 DECREF(d); |
| 86 | 163 return v; |
| 164 } | |
| 165 | |
| 166 static object * | |
|
301
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167 builtin_divmod(self, args) |
| 86 | 168 object *self; |
|
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169 object *args; |
| 86 | 170 { |
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171 object *v, *w, *x; |
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172 if (!getargs(args, "(OO)", &v, &w)) |
| 86 | 173 return NULL; |
|
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174 if (v->ob_type->tp_as_number == NULL || |
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175 w->ob_type->tp_as_number == NULL) { |
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223
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176 err_setstr(TypeError, "divmod() requires numeric arguments"); |
| 86 | 177 return NULL; |
| 178 } | |
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179 if (coerce(&v, &w) != 0) |
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180 return NULL; |
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181 x = (*v->ob_type->tp_as_number->nb_divmod)(v, w); |
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182 DECREF(v); |
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183 DECREF(w); |
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184 return x; |
| 86 | 185 } |
| 186 | |
| 187 static object * | |
| 188 exec_eval(v, start) | |
| 189 object *v; | |
| 190 int start; | |
| 191 { | |
| 192 object *str = NULL, *globals = NULL, *locals = NULL; | |
|
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193 char *s; |
| 86 | 194 int n; |
| 195 if (v != NULL) { | |
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196 if (is_tupleobject(v) && |
| 86 | 197 ((n = gettuplesize(v)) == 2 || n == 3)) { |
| 198 str = gettupleitem(v, 0); | |
| 199 globals = gettupleitem(v, 1); | |
| 200 if (n == 3) | |
| 201 locals = gettupleitem(v, 2); | |
| 202 } | |
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203 else |
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204 str = v; |
| 86 | 205 } |
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206 if (str == NULL || (!is_stringobject(str) && !is_codeobject(str)) || |
| 86 | 207 globals != NULL && !is_dictobject(globals) || |
| 208 locals != NULL && !is_dictobject(locals)) { | |
| 209 err_setstr(TypeError, | |
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210 "exec/eval arguments must be (string|code)[,dict[,dict]]"); |
| 86 | 211 return NULL; |
| 212 } | |
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213 if (is_codeobject(str)) |
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214 return eval_code((codeobject *) str, globals, locals, |
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215 (object *)NULL); |
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216 s = getstringvalue(str); |
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217 if (strlen(s) != getstringsize(str)) { |
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218 err_setstr(ValueError, "embedded '\\0' in string arg"); |
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219 return NULL; |
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220 } |
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221 if (start == eval_input) { |
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222 while (*s == ' ' || *s == '\t') |
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223 s++; |
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224 } |
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225 return run_string(s, start, globals, locals); |
| 86 | 226 } |
| 227 | |
| 228 static object * | |
| 229 builtin_eval(self, v) | |
| 230 object *self; | |
| 231 object *v; | |
| 232 { | |
| 233 return exec_eval(v, eval_input); | |
| 234 } | |
| 235 | |
| 236 static object * | |
| 237 builtin_exec(self, v) | |
| 238 object *self; | |
| 239 object *v; | |
| 240 { | |
| 241 return exec_eval(v, file_input); | |
| 242 } | |
| 243 | |
| 244 static object * | |
| 673 | 245 builtin_execfile(self, v) |
| 246 object *self; | |
| 247 object *v; | |
| 248 { | |
| 249 object *str = NULL, *globals = NULL, *locals = NULL, *w; | |
| 250 FILE* fp; | |
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251 char *s; |
| 673 | 252 int n; |
| 253 if (v != NULL) { | |
| 254 if (is_stringobject(v)) | |
| 255 str = v; | |
| 256 else if (is_tupleobject(v) && | |
| 257 ((n = gettuplesize(v)) == 2 || n == 3)) { | |
| 258 str = gettupleitem(v, 0); | |
| 259 globals = gettupleitem(v, 1); | |
| 260 if (n == 3) | |
| 261 locals = gettupleitem(v, 2); | |
| 262 } | |
| 263 } | |
| 264 if (str == NULL || !is_stringobject(str) || | |
| 265 globals != NULL && !is_dictobject(globals) || | |
| 266 locals != NULL && !is_dictobject(locals)) { | |
| 267 err_setstr(TypeError, | |
| 268 "execfile arguments must be filename[,dict[,dict]]"); | |
| 269 return NULL; | |
| 270 } | |
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271 s = getstringvalue(str); |
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272 if (strlen(s) != getstringsize(str)) { |
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273 err_setstr(ValueError, "embedded '\\0' in string arg"); |
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274 return NULL; |
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275 } |
| 926 | 276 BGN_SAVE |
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277 fp = fopen(s, "r"); |
| 926 | 278 END_SAVE |
| 673 | 279 if (fp == NULL) { |
| 280 err_setstr(IOError, "execfile cannot open the file argument"); | |
| 281 return NULL; | |
| 282 } | |
| 283 w = run_file(fp, getstringvalue(str), file_input, globals, locals); | |
| 926 | 284 BGN_SAVE |
| 673 | 285 fclose(fp); |
| 926 | 286 END_SAVE |
| 673 | 287 return w; |
| 288 } | |
| 289 | |
| 290 static object * | |
| 86 | 291 builtin_float(self, v) |
| 292 object *self; | |
| 293 object *v; | |
| 294 { | |
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295 number_methods *nb; |
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296 |
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297 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
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298 nb->nb_float == NULL) { |
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299 err_setstr(TypeError, |
|
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300 "float() argument can't be converted to float"); |
|
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301 return NULL; |
|
223
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302 } |
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303 return (*nb->nb_float)(v); |
| 86 | 304 } |
| 305 | |
| 306 static object * | |
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307 builtin_getattr(self, args) |
|
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308 object *self; |
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309 object *args; |
|
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310 { |
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311 object *v; |
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312 object *name; |
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313 if (!getargs(args, "(OS)", &v, &name)) |
|
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314 return NULL; |
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315 return getattro(v, name); |
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316 } |
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317 |
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318 static object * |
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319 builtin_hasattr(self, args) |
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320 object *self; |
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321 object *args; |
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322 { |
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323 object *v; |
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324 object *name; |
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325 if (!getargs(args, "(OS)", &v, &name)) |
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326 return NULL; |
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327 v = getattro(v, name); |
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328 if (v == NULL) { |
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329 err_clear(); |
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330 return newintobject(0L); |
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331 } |
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332 DECREF(v); |
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333 return newintobject(1L); |
|
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334 } |
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335 |
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336 static object * |
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337 builtin_id(self, args) |
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338 object *self; |
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339 object *args; |
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340 { |
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341 object *v; |
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342 if (!getargs(args, "O", &v)) |
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343 return NULL; |
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344 return newintobject((long)v); |
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345 } |
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346 |
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347 static object * |
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348 builtin_setattr(self, args) |
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349 object *self; |
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350 object *args; |
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351 { |
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352 object *v; |
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353 object *name; |
|
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354 object *value; |
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355 if (!getargs(args, "(OSO)", &v, &name, &value)) |
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356 return NULL; |
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357 if (setattro(v, name, value) != 0) |
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358 return NULL; |
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359 INCREF(None); |
|
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360 return None; |
|
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361 } |
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362 |
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363 static object * |
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364 builtin_hash(self, args) |
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365 object *self; |
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366 object *args; |
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367 { |
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368 object *v; |
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369 long x; |
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370 if (!getargs(args, "O", &v)) |
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371 return NULL; |
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372 x = hashobject(v); |
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373 if (x == -1) |
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374 return NULL; |
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375 return newintobject(x); |
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376 } |
|
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377 |
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378 static object * |
|
404
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379 builtin_hex(self, v) |
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380 object *self; |
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381 object *v; |
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382 { |
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383 number_methods *nb; |
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384 |
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385 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
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386 nb->nb_hex == NULL) { |
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387 err_setstr(TypeError, |
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388 "hex() argument can't be converted to hex"); |
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389 return NULL; |
|
404
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390 } |
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391 return (*nb->nb_hex)(v); |
|
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392 } |
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393 |
|
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394 static object *builtin_raw_input PROTO((object *, object *)); |
|
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395 |
|
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396 static object * |
| 86 | 397 builtin_input(self, v) |
| 398 object *self; | |
| 399 object *v; | |
| 400 { | |
|
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401 object *line = builtin_raw_input(self, v); |
|
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402 if (line == NULL) |
|
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403 return line; |
|
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404 v = exec_eval(line, eval_input); |
|
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405 DECREF(line); |
|
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406 return v; |
| 86 | 407 } |
| 408 | |
| 409 static object * | |
| 410 builtin_int(self, v) | |
| 411 object *self; | |
| 412 object *v; | |
| 413 { | |
|
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414 number_methods *nb; |
|
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415 |
|
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416 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
|
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417 nb->nb_int == NULL) { |
|
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418 err_setstr(TypeError, |
|
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419 "int() argument can't be converted to int"); |
|
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420 return NULL; |
| 86 | 421 } |
|
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422 return (*nb->nb_int)(v); |
| 86 | 423 } |
| 424 | |
| 425 static object * | |
| 426 builtin_len(self, v) | |
| 427 object *self; | |
| 428 object *v; | |
| 429 { | |
| 430 long len; | |
| 431 typeobject *tp; | |
| 432 if (v == NULL) { | |
| 433 err_setstr(TypeError, "len() without argument"); | |
| 434 return NULL; | |
| 435 } | |
| 436 tp = v->ob_type; | |
| 437 if (tp->tp_as_sequence != NULL) { | |
| 438 len = (*tp->tp_as_sequence->sq_length)(v); | |
| 439 } | |
| 440 else if (tp->tp_as_mapping != NULL) { | |
| 441 len = (*tp->tp_as_mapping->mp_length)(v); | |
| 442 } | |
| 443 else { | |
| 444 err_setstr(TypeError, "len() of unsized object"); | |
| 445 return NULL; | |
| 446 } | |
|
944
222f04f55083
Changes so that user-defined classes can implement operations invoked
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447 if (len < 0) |
|
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Changes so that user-defined classes can implement operations invoked
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|
448 return NULL; |
|
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Changes so that user-defined classes can implement operations invoked
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|
449 else |
|
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450 return newintobject(len); |
| 86 | 451 } |
| 452 | |
| 453 static object * | |
|
223
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Added long() and support for longs in int() and float();
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|
454 builtin_long(self, v) |
|
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|
455 object *self; |
|
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Added long() and support for longs in int() and float();
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456 object *v; |
|
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Added long() and support for longs in int() and float();
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457 { |
|
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458 number_methods *nb; |
|
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459 |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
460 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
461 nb->nb_long == NULL) { |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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462 err_setstr(TypeError, |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
463 "long() argument can't be converted to long"); |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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464 return NULL; |
|
223
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465 } |
|
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466 return (*nb->nb_long)(v); |
|
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|
467 } |
|
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Added long() and support for longs in int() and float();
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468 |
|
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Added long() and support for longs in int() and float();
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469 static object * |
| 86 | 470 min_max(v, sign) |
| 471 object *v; | |
| 472 int sign; | |
| 473 { | |
| 474 int i, n, cmp; | |
| 475 object *w, *x; | |
| 476 sequence_methods *sq; | |
| 477 if (v == NULL) { | |
| 478 err_setstr(TypeError, "min() or max() without argument"); | |
| 479 return NULL; | |
| 480 } | |
| 481 sq = v->ob_type->tp_as_sequence; | |
| 482 if (sq == NULL) { | |
| 483 err_setstr(TypeError, "min() or max() of non-sequence"); | |
| 484 return NULL; | |
| 485 } | |
| 486 n = (*sq->sq_length)(v); | |
|
1096
ce718457b172
* classobject.c: in instance_lenth, test result of call_object
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|
487 if (n < 0) |
|
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|
488 return NULL; |
| 86 | 489 if (n == 0) { |
| 463 | 490 err_setstr(ValueError, "min() or max() of empty sequence"); |
| 86 | 491 return NULL; |
| 492 } | |
| 493 w = (*sq->sq_item)(v, 0); /* Implies INCREF */ | |
| 494 for (i = 1; i < n; i++) { | |
| 495 x = (*sq->sq_item)(v, i); /* Implies INCREF */ | |
| 496 cmp = cmpobject(x, w); | |
| 497 if (cmp * sign > 0) { | |
| 498 DECREF(w); | |
| 499 w = x; | |
| 500 } | |
| 501 else | |
| 502 DECREF(x); | |
| 503 } | |
| 504 return w; | |
| 505 } | |
| 506 | |
| 507 static object * | |
| 508 builtin_min(self, v) | |
| 509 object *self; | |
| 510 object *v; | |
| 511 { | |
| 512 return min_max(v, -1); | |
| 513 } | |
| 514 | |
| 515 static object * | |
| 516 builtin_max(self, v) | |
| 517 object *self; | |
| 518 object *v; | |
| 519 { | |
| 520 return min_max(v, 1); | |
| 521 } | |
| 522 | |
| 523 static object * | |
|
404
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524 builtin_oct(self, v) |
|
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|
525 object *self; |
|
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Made dir() more robust.
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|
526 object *v; |
|
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Made dir() more robust.
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527 { |
|
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|
528 number_methods *nb; |
|
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529 |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
530 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
531 nb->nb_oct == NULL) { |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
532 err_setstr(TypeError, |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
533 "oct() argument can't be converted to oct"); |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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534 return NULL; |
|
404
9cd38d1ac391
Made dir() more robust.
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|
535 } |
|
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536 return (*nb->nb_oct)(v); |
|
404
9cd38d1ac391
Made dir() more robust.
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|
537 } |
|
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Made dir() more robust.
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|
538 |
|
9cd38d1ac391
Made dir() more robust.
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539 static object * |
|
959
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|
540 builtin_open(self, args) |
| 86 | 541 object *self; |
|
959
68b302ad84a1
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542 object *args; |
| 86 | 543 { |
|
959
68b302ad84a1
use getargs() in more cases;
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|
544 char *name, *mode; |
|
68b302ad84a1
use getargs() in more cases;
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|
545 if (!getargs(args, "(ss)", &name, &mode)) |
| 86 | 546 return NULL; |
|
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547 return newfileobject(name, mode); |
| 86 | 548 } |
| 549 | |
| 550 static object * | |
|
959
68b302ad84a1
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diff
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|
551 builtin_ord(self, args) |
| 86 | 552 object *self; |
|
959
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|
553 object *args; |
| 86 | 554 { |
|
959
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|
555 char *s; |
|
68b302ad84a1
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|
556 int len; |
|
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|
557 if (!getargs(args, "s#", &s, &len)) |
| 86 | 558 return NULL; |
|
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|
559 if (len != 1) { |
| 463 | 560 err_setstr(ValueError, "ord() arg must have length 1"); |
| 86 | 561 return NULL; |
| 562 } | |
|
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|
563 return newintobject((long)(s[0] & 0xff)); |
| 86 | 564 } |
| 565 | |
| 566 static object * | |
|
301
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|
567 builtin_pow(self, args) |
|
223
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Added long() and support for longs in int() and float();
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|
568 object *self; |
|
301
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|
569 object *args; |
|
223
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Added long() and support for longs in int() and float();
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570 { |
|
301
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|
571 object *v, *w, *x; |
|
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572 if (!getargs(args, "(OO)", &v, &w)) |
|
223
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|
573 return NULL; |
|
301
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|
574 if (v->ob_type->tp_as_number == NULL || |
|
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|
575 w->ob_type->tp_as_number == NULL) { |
|
223
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Added long() and support for longs in int() and float();
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|
576 err_setstr(TypeError, "pow() requires numeric arguments"); |
|
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|
577 return NULL; |
|
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|
578 } |
|
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|
579 if (coerce(&v, &w) != 0) |
|
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|
580 return NULL; |
|
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|
581 x = (*v->ob_type->tp_as_number->nb_power)(v, w); |
|
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|
582 DECREF(v); |
|
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|
583 DECREF(w); |
|
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|
584 return x; |
|
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|
585 } |
|
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Added long() and support for longs in int() and float();
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|
586 |
|
6693c5d87f3a
Added long() and support for longs in int() and float();
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|
587 static object * |
| 86 | 588 builtin_range(self, v) |
| 589 object *self; | |
| 590 object *v; | |
| 591 { | |
| 592 static char *errmsg = "range() requires 1-3 int arguments"; | |
| 593 int i, n; | |
| 594 long ilow, ihigh, istep; | |
| 595 if (v != NULL && is_intobject(v)) { | |
| 596 ilow = 0; ihigh = getintvalue(v); istep = 1; | |
| 597 } | |
| 598 else if (v == NULL || !is_tupleobject(v)) { | |
| 599 err_setstr(TypeError, errmsg); | |
| 600 return NULL; | |
| 601 } | |
| 602 else { | |
| 603 n = gettuplesize(v); | |
| 604 if (n < 1 || n > 3) { | |
| 605 err_setstr(TypeError, errmsg); | |
| 606 return NULL; | |
| 607 } | |
| 608 for (i = 0; i < n; i++) { | |
| 609 if (!is_intobject(gettupleitem(v, i))) { | |
| 610 err_setstr(TypeError, errmsg); | |
| 611 return NULL; | |
| 612 } | |
| 613 } | |
| 614 if (n == 3) { | |
| 615 istep = getintvalue(gettupleitem(v, 2)); | |
| 616 --n; | |
| 617 } | |
| 618 else | |
| 619 istep = 1; | |
| 620 ihigh = getintvalue(gettupleitem(v, --n)); | |
| 621 if (n > 0) | |
| 622 ilow = getintvalue(gettupleitem(v, 0)); | |
| 623 else | |
| 624 ilow = 0; | |
| 625 } | |
| 626 if (istep == 0) { | |
| 463 | 627 err_setstr(ValueError, "zero step for range()"); |
| 86 | 628 return NULL; |
| 629 } | |
| 630 /* XXX ought to check overflow of subtraction */ | |
| 631 if (istep > 0) | |
| 632 n = (ihigh - ilow + istep - 1) / istep; | |
| 633 else | |
| 634 n = (ihigh - ilow + istep + 1) / istep; | |
| 635 if (n < 0) | |
| 636 n = 0; | |
| 637 v = newlistobject(n); | |
| 638 if (v == NULL) | |
| 639 return NULL; | |
| 640 for (i = 0; i < n; i++) { | |
| 641 object *w = newintobject(ilow); | |
| 642 if (w == NULL) { | |
| 643 DECREF(v); | |
| 644 return NULL; | |
| 645 } | |
| 646 setlistitem(v, i, w); | |
| 647 ilow += istep; | |
| 648 } | |
| 649 return v; | |
| 650 } | |
| 651 | |
| 652 static object * | |
| 653 builtin_raw_input(self, v) | |
| 654 object *self; | |
| 655 object *v; | |
| 656 { | |
|
1073
2c0432fcc270
Modified most (but not yet all) I/O to always go through sys.stdout or
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|
657 object *f = sysget("stdout"); |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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parents:
1049
diff
changeset
|
658 if (f == NULL) { |
|
2c0432fcc270
Modified most (but not yet all) I/O to always go through sys.stdout or
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diff
changeset
|
659 err_setstr(RuntimeError, "lost sys.stdout"); |
|
2c0432fcc270
Modified most (but not yet all) I/O to always go through sys.stdout or
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|
660 return NULL; |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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|
661 } |
| 86 | 662 flushline(); |
|
284
6ac402023cac
printobject now returns an error code
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diff
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|
663 if (v != NULL) { |
|
1073
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|
664 if (writeobject(v, f, PRINT_RAW) != 0) |
|
284
6ac402023cac
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|
665 return NULL; |
|
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printobject now returns an error code
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diff
changeset
|
666 } |
|
182
59ffb6d4b34c
Use fileobject's filegetline() to implement unlimited raw_input().
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|
667 return filegetline(sysget("stdin"), -1); |
| 86 | 668 } |
| 669 | |
| 670 static object * | |
| 671 builtin_reload(self, v) | |
| 672 object *self; | |
| 673 object *v; | |
| 674 { | |
| 675 return reload_module(v); | |
| 676 } | |
| 677 | |
| 678 static object * | |
|
1094
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|
679 builtin_repr(self, v) |
|
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|
680 object *self; |
|
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|
681 object *v; |
|
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* config.c: Added audioop to lists.
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|
682 { |
|
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|
683 if (v == NULL) { |
|
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|
684 err_badarg(); |
|
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* config.c: Added audioop to lists.
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diff
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|
685 return NULL; |
|
d2af6bdcb6d0
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|
686 } |
|
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* config.c: Added audioop to lists.
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|
687 return reprobject(v); |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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|
688 } |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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|
689 |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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changeset
|
690 static object * |
|
1215
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bltinmodule.c: added round(x, [n]); coerce() of two class instances
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diff
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|
691 builtin_round(self, args) |
|
9d6cf529bb71
bltinmodule.c: added round(x, [n]); coerce() of two class instances
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|
692 object *self; |
|
9d6cf529bb71
bltinmodule.c: added round(x, [n]); coerce() of two class instances
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parents:
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changeset
|
693 object *args; |
|
9d6cf529bb71
bltinmodule.c: added round(x, [n]); coerce() of two class instances
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|
694 { |
|
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|
695 extern double floor PROTO((double)); |
|
9d6cf529bb71
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|
696 extern double ceil PROTO((double)); |
|
9d6cf529bb71
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|
697 double x; |
|
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|
698 double f; |
|
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|
699 int ndigits = 0; |
|
9d6cf529bb71
bltinmodule.c: added round(x, [n]); coerce() of two class instances
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|
700 int sign = 1; |
|
9d6cf529bb71
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|
701 int i; |
|
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|
702 if (!getargs(args, "d", &x)) { |
|
9d6cf529bb71
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|
703 err_clear(); |
|
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|
704 if (!getargs(args, "(di)", &x, &ndigits)) |
|
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|
705 return NULL; |
|
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|
706 } |
|
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|
707 f = 1.0; |
|
9d6cf529bb71
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|
708 for (i = ndigits; --i >= 0; ) |
|
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|
709 f = f*10.0; |
|
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|
710 for (i = ndigits; ++i <= 0; ) |
|
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|
711 f = f*0.1; |
|
9d6cf529bb71
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|
712 if (x >= 0.0) |
|
9d6cf529bb71
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|
713 return newfloatobject(floor(x*f + 0.5) / f); |
|
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|
714 else |
|
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|
715 return newfloatobject(ceil(x*f - 0.5) / f); |
|
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|
716 } |
|
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|
717 |
|
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|
718 static object * |
|
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|
719 builtin_str(self, v) |
|
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|
720 object *self; |
|
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|
721 object *v; |
|
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* config.c: Added audioop to lists.
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|
722 { |
|
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|
723 if (v == NULL) { |
|
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|
724 err_badarg(); |
|
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|
725 return NULL; |
|
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|
726 } |
|
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|
727 if (is_stringobject(v)) { |
|
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* config.c: Added audioop to lists.
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|
728 INCREF(v); |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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|
729 return v; |
|
d2af6bdcb6d0
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730 } |
|
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|
731 else |
|
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732 return reprobject(v); |
|
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733 } |
|
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734 |
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735 static object * |
| 86 | 736 builtin_type(self, v) |
| 737 object *self; | |
| 738 object *v; | |
| 739 { | |
| 740 if (v == NULL) { | |
|
1094
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741 err_setstr(TypeError, "type() requires an argument"); |
| 86 | 742 return NULL; |
| 743 } | |
| 744 v = (object *)v->ob_type; | |
| 745 INCREF(v); | |
| 746 return v; | |
| 747 } | |
| 748 | |
| 749 static struct methodlist builtin_methods[] = { | |
|
480
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750 {"abs", builtin_abs}, |
|
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751 {"apply", builtin_apply}, |
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752 {"chr", builtin_chr}, |
|
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753 {"cmp", builtin_cmp}, |
|
944
222f04f55083
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754 {"coerce", builtin_coerce}, |
|
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755 {"compile", builtin_compile}, |
|
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756 {"dir", builtin_dir}, |
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757 {"divmod", builtin_divmod}, |
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758 {"eval", builtin_eval}, |
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759 {"exec", builtin_exec}, |
| 673 | 760 {"execfile", builtin_execfile}, |
|
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761 {"float", builtin_float}, |
|
644
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762 {"getattr", builtin_getattr}, |
|
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763 {"hasattr", builtin_hasattr}, |
|
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764 {"hash", builtin_hash}, |
|
480
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765 {"hex", builtin_hex}, |
|
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766 {"id", builtin_id}, |
|
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767 {"input", builtin_input}, |
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768 {"int", builtin_int}, |
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769 {"len", builtin_len}, |
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770 {"long", builtin_long}, |
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771 {"max", builtin_max}, |
|
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772 {"min", builtin_min}, |
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773 {"oct", builtin_oct}, |
|
662
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Get rid of comment about open().
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774 {"open", builtin_open}, |
|
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775 {"ord", builtin_ord}, |
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776 {"pow", builtin_pow}, |
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777 {"range", builtin_range}, |
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778 {"raw_input", builtin_raw_input}, |
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779 {"reload", builtin_reload}, |
|
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780 {"repr", builtin_repr}, |
|
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781 {"round", builtin_round}, |
|
644
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782 {"setattr", builtin_setattr}, |
|
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783 {"str", builtin_str}, |
|
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784 {"type", builtin_type}, |
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|
785 {NULL, NULL}, |
| 86 | 786 }; |
| 787 | |
| 788 static object *builtin_dict; | |
| 789 | |
| 790 object * | |
| 791 getbuiltin(name) | |
|
332
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|
792 object *name; |
| 86 | 793 { |
|
332
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|
794 return dict2lookup(builtin_dict, name); |
| 86 | 795 } |
| 796 | |
| 797 /* Predefined exceptions */ | |
| 798 | |
| 495 | 799 object *AttributeError; |
| 86 | 800 object *EOFError; |
| 495 | 801 object *IOError; |
|
505
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|
802 object *ImportError; |
| 495 | 803 object *IndexError; |
| 804 object *KeyError; | |
| 805 object *KeyboardInterrupt; | |
| 86 | 806 object *MemoryError; |
| 807 object *NameError; | |
| 495 | 808 object *OverflowError; |
| 809 object *RuntimeError; | |
| 810 object *SyntaxError; | |
| 86 | 811 object *SystemError; |
| 545 | 812 object *SystemExit; |
| 495 | 813 object *TypeError; |
| 814 object *ValueError; | |
| 463 | 815 object *ZeroDivisionError; |
| 816 | |
| 86 | 817 static object * |
| 495 | 818 newstdexception(name) |
| 819 char *name; | |
| 86 | 820 { |
| 495 | 821 object *v = newstringobject(name); |
| 86 | 822 if (v == NULL || dictinsert(builtin_dict, name, v) != 0) |
| 823 fatal("no mem for new standard exception"); | |
| 824 return v; | |
| 825 } | |
| 826 | |
| 827 static void | |
| 828 initerrors() | |
| 829 { | |
|
505
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830 AttributeError = newstdexception("AttributeError"); |
| 495 | 831 EOFError = newstdexception("EOFError"); |
|
505
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832 IOError = newstdexception("IOError"); |
|
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833 ImportError = newstdexception("ImportError"); |
|
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|
834 IndexError = newstdexception("IndexError"); |
|
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|
835 KeyError = newstdexception("KeyError"); |
|
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836 KeyboardInterrupt = newstdexception("KeyboardInterrupt"); |
| 495 | 837 MemoryError = newstdexception("MemoryError"); |
| 838 NameError = newstdexception("NameError"); | |
|
505
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|
839 OverflowError = newstdexception("OverflowError"); |
|
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|
840 RuntimeError = newstdexception("RuntimeError"); |
|
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|
841 SyntaxError = newstdexception("SyntaxError"); |
| 495 | 842 SystemError = newstdexception("SystemError"); |
| 545 | 843 SystemExit = newstdexception("SystemExit"); |
|
505
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|
844 TypeError = newstdexception("TypeError"); |
|
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|
845 ValueError = newstdexception("ValueError"); |
| 495 | 846 ZeroDivisionError = newstdexception("ZeroDivisionError"); |
| 86 | 847 } |
| 848 | |
| 849 void | |
| 850 initbuiltin() | |
| 851 { | |
| 852 object *m; | |
| 853 m = initmodule("builtin", builtin_methods); | |
| 854 builtin_dict = getmoduledict(m); | |
| 855 INCREF(builtin_dict); | |
| 856 initerrors(); | |
| 857 (void) dictinsert(builtin_dict, "None", None); | |
| 858 } | |
|
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859 |
|
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|
860 /* Coerce two numeric types to the "larger" one. |
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861 Increment the reference count on each argument. |
|
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862 Return -1 and raise an exception if no coercion is possible |
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863 (and then no reference count is incremented). |
|
955
03de67080c95
* classobject.[ch], {float,long,int}object.c, bltinmodule.c:
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864 */ |
|
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865 |
|
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|
866 int |
|
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|
867 coerce(pv, pw) |
|
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|
868 object **pv, **pw; |
|
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869 { |
|
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870 register object *v = *pv; |
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871 register object *w = *pw; |
|
955
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|
872 int res; |
|
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|
873 |
|
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874 if (v->ob_type == w->ob_type && !is_instanceobject(v)) { |
|
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875 INCREF(v); |
|
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876 INCREF(w); |
|
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877 return 0; |
|
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|
878 } |
|
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879 if (v->ob_type->tp_as_number && v->ob_type->tp_as_number->nb_coerce) { |
|
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|
880 res = (*v->ob_type->tp_as_number->nb_coerce)(pv, pw); |
|
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|
881 if (res <= 0) |
|
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882 return res; |
|
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883 } |
|
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884 if (w->ob_type->tp_as_number && w->ob_type->tp_as_number->nb_coerce) { |
|
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|
885 res = (*w->ob_type->tp_as_number->nb_coerce)(pw, pv); |
|
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886 if (res <= 0) |
|
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887 return res; |
|
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888 } |
|
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889 err_setstr(TypeError, "number coercion failed"); |
|
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890 return -1; |
|
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891 } |