Mercurial > cpython-lru_cache-weakref
annotate Python/ast.c @ 47933:4f804ee772eb legacy-trunk
#3342: In tracebacks, printed source lines were not indented since r62555.
#3343: Py_DisplaySourceLine should be a private function. Rename it to _Py_DisplaySourceLine.
| author | Amaury Forgeot d'Arc <amauryfa@gmail.com> |
|---|---|
| date | Fri, 11 Jul 2008 21:45:06 +0000 |
| parents | 80109d4044cd |
| children | c0ab2bafb264 |
| rev | line source |
|---|---|
| 35742 | 1 /* |
| 2 * This file includes functions to transform a concrete syntax tree (CST) to | |
| 3 * an abstract syntax tree (AST). The main function is PyAST_FromNode(). | |
| 4 * | |
| 5 */ | |
| 6 #include "Python.h" | |
| 7 #include "Python-ast.h" | |
| 8 #include "grammar.h" | |
| 9 #include "node.h" | |
|
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10 #include "pyarena.h" |
| 35742 | 11 #include "ast.h" |
| 12 #include "token.h" | |
| 13 #include "parsetok.h" | |
| 14 #include "graminit.h" | |
| 15 | |
| 16 #include <assert.h> | |
| 17 | |
| 18 /* Data structure used internally */ | |
| 19 struct compiling { | |
|
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20 char *c_encoding; /* source encoding */ |
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21 int c_future_unicode; /* __future__ unicode literals flag */ |
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22 PyArena *c_arena; /* arena for allocating memeory */ |
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23 const char *c_filename; /* filename */ |
| 35742 | 24 }; |
| 25 | |
| 26 static asdl_seq *seq_for_testlist(struct compiling *, const node *); | |
| 27 static expr_ty ast_for_expr(struct compiling *, const node *); | |
| 28 static stmt_ty ast_for_stmt(struct compiling *, const node *); | |
| 29 static asdl_seq *ast_for_suite(struct compiling *, const node *); | |
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30 static asdl_seq *ast_for_exprlist(struct compiling *, const node *, |
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31 expr_context_ty); |
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32 static expr_ty ast_for_testlist(struct compiling *, const node *); |
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33 static stmt_ty ast_for_classdef(struct compiling *, const node *, asdl_seq *); |
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34 static expr_ty ast_for_testlist_gexp(struct compiling *, const node *); |
| 35742 | 35 |
| 36 /* Note different signature for ast_for_call */ | |
| 37 static expr_ty ast_for_call(struct compiling *, const node *, expr_ty); | |
| 38 | |
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39 static PyObject *parsenumber(struct compiling *, const char *); |
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40 static PyObject *parsestr(struct compiling *, const char *); |
| 35742 | 41 static PyObject *parsestrplus(struct compiling *, const node *n); |
| 42 | |
| 43 #ifndef LINENO | |
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44 #define LINENO(n) ((n)->n_lineno) |
| 35742 | 45 #endif |
| 46 | |
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47 static identifier |
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48 new_identifier(const char* n, PyArena *arena) { |
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49 PyObject* id = PyString_InternFromString(n); |
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50 PyArena_AddPyObject(arena, id); |
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51 return id; |
| 35742 | 52 } |
| 53 | |
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54 #define NEW_IDENTIFIER(n) new_identifier(STR(n), c->c_arena) |
| 35742 | 55 |
| 56 /* This routine provides an invalid object for the syntax error. | |
| 57 The outermost routine must unpack this error and create the | |
| 58 proper object. We do this so that we don't have to pass | |
| 59 the filename to everything function. | |
| 60 | |
| 61 XXX Maybe we should just pass the filename... | |
| 62 */ | |
| 63 | |
| 64 static int | |
| 65 ast_error(const node *n, const char *errstr) | |
| 66 { | |
| 67 PyObject *u = Py_BuildValue("zi", errstr, LINENO(n)); | |
| 68 if (!u) | |
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69 return 0; |
| 35742 | 70 PyErr_SetObject(PyExc_SyntaxError, u); |
| 71 Py_DECREF(u); | |
| 72 return 0; | |
| 73 } | |
| 74 | |
| 75 static void | |
| 76 ast_error_finish(const char *filename) | |
| 77 { | |
| 78 PyObject *type, *value, *tback, *errstr, *loc, *tmp; | |
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79 long lineno; |
| 35742 | 80 |
| 81 assert(PyErr_Occurred()); | |
| 82 if (!PyErr_ExceptionMatches(PyExc_SyntaxError)) | |
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83 return; |
| 35742 | 84 |
| 85 PyErr_Fetch(&type, &value, &tback); | |
| 86 errstr = PyTuple_GetItem(value, 0); | |
| 87 if (!errstr) | |
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88 return; |
| 35742 | 89 Py_INCREF(errstr); |
| 90 lineno = PyInt_AsLong(PyTuple_GetItem(value, 1)); | |
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91 if (lineno == -1) { |
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92 Py_DECREF(errstr); |
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93 return; |
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94 } |
| 35742 | 95 Py_DECREF(value); |
| 96 | |
| 97 loc = PyErr_ProgramText(filename, lineno); | |
| 98 if (!loc) { | |
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99 Py_INCREF(Py_None); |
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100 loc = Py_None; |
| 35742 | 101 } |
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102 tmp = Py_BuildValue("(zlOO)", filename, lineno, Py_None, loc); |
| 35742 | 103 Py_DECREF(loc); |
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104 if (!tmp) { |
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105 Py_DECREF(errstr); |
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106 return; |
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107 } |
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108 value = PyTuple_Pack(2, errstr, tmp); |
| 35742 | 109 Py_DECREF(errstr); |
| 110 Py_DECREF(tmp); | |
| 111 if (!value) | |
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112 return; |
| 35742 | 113 PyErr_Restore(type, value, tback); |
| 114 } | |
| 115 | |
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116 static int |
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117 ast_warn(struct compiling *c, const node *n, char *msg) |
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118 { |
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119 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, c->c_filename, LINENO(n), |
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120 NULL, NULL) < 0) { |
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121 /* if -Werr, change it to a SyntaxError */ |
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122 if (PyErr_Occurred() && PyErr_ExceptionMatches(PyExc_SyntaxWarning)) |
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123 ast_error(n, msg); |
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124 return 0; |
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125 } |
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126 return 1; |
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127 } |
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128 |
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129 static int |
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130 forbidden_check(struct compiling *c, const node *n, const char *x) |
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131 { |
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132 if (!strcmp(x, "None")) |
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133 return ast_error(n, "assignment to None"); |
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134 if (Py_Py3kWarningFlag && !(strcmp(x, "True") && strcmp(x, "False")) && |
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135 !ast_warn(c, n, "assignment to True or False is forbidden in 3.x")) |
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136 return 0; |
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137 return 1; |
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138 } |
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139 |
| 35742 | 140 /* num_stmts() returns number of contained statements. |
| 141 | |
| 142 Use this routine to determine how big a sequence is needed for | |
| 143 the statements in a parse tree. Its raison d'etre is this bit of | |
| 144 grammar: | |
| 145 | |
| 146 stmt: simple_stmt | compound_stmt | |
| 147 simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE | |
| 148 | |
| 149 A simple_stmt can contain multiple small_stmt elements joined | |
| 150 by semicolons. If the arg is a simple_stmt, the number of | |
| 151 small_stmt elements is returned. | |
| 152 */ | |
| 153 | |
| 154 static int | |
| 155 num_stmts(const node *n) | |
| 156 { | |
| 157 int i, l; | |
| 158 node *ch; | |
| 159 | |
| 160 switch (TYPE(n)) { | |
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161 case single_input: |
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162 if (TYPE(CHILD(n, 0)) == NEWLINE) |
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163 return 0; |
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164 else |
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165 return num_stmts(CHILD(n, 0)); |
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166 case file_input: |
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167 l = 0; |
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168 for (i = 0; i < NCH(n); i++) { |
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169 ch = CHILD(n, i); |
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170 if (TYPE(ch) == stmt) |
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171 l += num_stmts(ch); |
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172 } |
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173 return l; |
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174 case stmt: |
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175 return num_stmts(CHILD(n, 0)); |
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176 case compound_stmt: |
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177 return 1; |
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178 case simple_stmt: |
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179 return NCH(n) / 2; /* Divide by 2 to remove count of semi-colons */ |
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180 case suite: |
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181 if (NCH(n) == 1) |
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182 return num_stmts(CHILD(n, 0)); |
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183 else { |
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184 l = 0; |
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185 for (i = 2; i < (NCH(n) - 1); i++) |
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186 l += num_stmts(CHILD(n, i)); |
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187 return l; |
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188 } |
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189 default: { |
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diff
changeset
|
190 char buf[128]; |
| 35742 | 191 |
|
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diff
changeset
|
192 sprintf(buf, "Non-statement found: %d %d\n", |
|
72da48d96257
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diff
changeset
|
193 TYPE(n), NCH(n)); |
|
72da48d96257
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diff
changeset
|
194 Py_FatalError(buf); |
|
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diff
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|
195 } |
| 35742 | 196 } |
| 197 assert(0); | |
| 198 return 0; | |
| 199 } | |
| 200 | |
| 201 /* Transform the CST rooted at node * to the appropriate AST | |
| 202 */ | |
| 203 | |
| 204 mod_ty | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
205 PyAST_FromNode(const node *n, PyCompilerFlags *flags, const char *filename, |
|
41215
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changeset
|
206 PyArena *arena) |
| 35742 | 207 { |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
208 int i, j, k, num; |
| 35742 | 209 asdl_seq *stmts = NULL; |
| 210 stmt_ty s; | |
| 211 node *ch; | |
| 212 struct compiling c; | |
| 213 | |
| 214 if (flags && flags->cf_flags & PyCF_SOURCE_IS_UTF8) { | |
|
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|
215 c.c_encoding = "utf-8"; |
|
72da48d96257
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changeset
|
216 if (TYPE(n) == encoding_decl) { |
|
72da48d96257
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diff
changeset
|
217 ast_error(n, "encoding declaration in Unicode string"); |
|
72da48d96257
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|
218 goto error; |
|
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diff
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|
219 } |
| 35742 | 220 } else if (TYPE(n) == encoding_decl) { |
|
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|
221 c.c_encoding = STR(n); |
|
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|
222 n = CHILD(n, 0); |
| 35742 | 223 } else { |
|
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|
224 c.c_encoding = NULL; |
| 35742 | 225 } |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
226 c.c_future_unicode = flags && flags->cf_flags & CO_FUTURE_UNICODE_LITERALS; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
227 c.c_arena = arena; |
|
43997
17479a09ec7c
Added filename to compiling struct based on Martin's suggestion.
Christian Heimes <christian@cheimes.de>
parents:
43985
diff
changeset
|
228 c.c_filename = filename; |
| 35742 | 229 |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
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36712
diff
changeset
|
230 k = 0; |
| 35742 | 231 switch (TYPE(n)) { |
|
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diff
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|
232 case file_input: |
|
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|
233 stmts = asdl_seq_new(num_stmts(n), arena); |
|
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|
234 if (!stmts) |
|
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|
235 return NULL; |
|
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|
236 for (i = 0; i < NCH(n) - 1; i++) { |
|
72da48d96257
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diff
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|
237 ch = CHILD(n, i); |
|
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diff
changeset
|
238 if (TYPE(ch) == NEWLINE) |
|
72da48d96257
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diff
changeset
|
239 continue; |
|
72da48d96257
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diff
changeset
|
240 REQ(ch, stmt); |
|
72da48d96257
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diff
changeset
|
241 num = num_stmts(ch); |
|
72da48d96257
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diff
changeset
|
242 if (num == 1) { |
|
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diff
changeset
|
243 s = ast_for_stmt(&c, ch); |
|
72da48d96257
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diff
changeset
|
244 if (!s) |
|
72da48d96257
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diff
changeset
|
245 goto error; |
|
72da48d96257
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41205
diff
changeset
|
246 asdl_seq_SET(stmts, k++, s); |
|
72da48d96257
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41205
diff
changeset
|
247 } |
|
72da48d96257
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diff
changeset
|
248 else { |
|
72da48d96257
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diff
changeset
|
249 ch = CHILD(ch, 0); |
|
72da48d96257
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diff
changeset
|
250 REQ(ch, simple_stmt); |
|
72da48d96257
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diff
changeset
|
251 for (j = 0; j < num; j++) { |
|
72da48d96257
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diff
changeset
|
252 s = ast_for_stmt(&c, CHILD(ch, j * 2)); |
|
72da48d96257
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diff
changeset
|
253 if (!s) |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
254 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
255 asdl_seq_SET(stmts, k++, s); |
|
72da48d96257
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41205
diff
changeset
|
256 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
257 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
258 } |
|
72da48d96257
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diff
changeset
|
259 return Module(stmts, arena); |
|
72da48d96257
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diff
changeset
|
260 case eval_input: { |
|
72da48d96257
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41205
diff
changeset
|
261 expr_ty testlist_ast; |
| 35742 | 262 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
263 /* XXX Why not gen_for here? */ |
|
72da48d96257
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41205
diff
changeset
|
264 testlist_ast = ast_for_testlist(&c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
265 if (!testlist_ast) |
|
72da48d96257
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41205
diff
changeset
|
266 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
267 return Expression(testlist_ast, arena); |
|
72da48d96257
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diff
changeset
|
268 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
269 case single_input: |
|
72da48d96257
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diff
changeset
|
270 if (TYPE(CHILD(n, 0)) == NEWLINE) { |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
271 stmts = asdl_seq_new(1, arena); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
272 if (!stmts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
273 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
274 asdl_seq_SET(stmts, 0, Pass(n->n_lineno, n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
275 arena)); |
|
41579
7a4f174df844
Handle a couple of uncaught errors. This should be backported
Neal Norwitz <nnorwitz@gmail.com>
parents:
41578
diff
changeset
|
276 if (!asdl_seq_GET(stmts, 0)) |
|
7a4f174df844
Handle a couple of uncaught errors. This should be backported
Neal Norwitz <nnorwitz@gmail.com>
parents:
41578
diff
changeset
|
277 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
278 return Interactive(stmts, arena); |
|
72da48d96257
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41205
diff
changeset
|
279 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
280 else { |
|
72da48d96257
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diff
changeset
|
281 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
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diff
changeset
|
282 num = num_stmts(n); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
283 stmts = asdl_seq_new(num, arena); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
284 if (!stmts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
285 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
286 if (num == 1) { |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
287 s = ast_for_stmt(&c, n); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
288 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
289 goto error; |
|
72da48d96257
Clean up formatting of this file.
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parents:
41205
diff
changeset
|
290 asdl_seq_SET(stmts, 0, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
291 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
292 else { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
293 /* Only a simple_stmt can contain multiple statements. */ |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
294 REQ(n, simple_stmt); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
295 for (i = 0; i < NCH(n); i += 2) { |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
296 if (TYPE(CHILD(n, i)) == NEWLINE) |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
297 break; |
|
72da48d96257
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41205
diff
changeset
|
298 s = ast_for_stmt(&c, CHILD(n, i)); |
|
72da48d96257
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41205
diff
changeset
|
299 if (!s) |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
300 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
301 asdl_seq_SET(stmts, i / 2, s); |
|
72da48d96257
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41205
diff
changeset
|
302 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
303 } |
| 35742 | 304 |
|
41215
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diff
changeset
|
305 return Interactive(stmts, arena); |
|
72da48d96257
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41205
diff
changeset
|
306 } |
|
72da48d96257
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parents:
41205
diff
changeset
|
307 default: |
|
41578
bc6a0fe32351
Actually raise an exception before calling ast_error_finish.
Georg Brandl <georg@python.org>
parents:
41215
diff
changeset
|
308 PyErr_Format(PyExc_SystemError, |
|
bc6a0fe32351
Actually raise an exception before calling ast_error_finish.
Georg Brandl <georg@python.org>
parents:
41215
diff
changeset
|
309 "invalid node %d for PyAST_FromNode", TYPE(n)); |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
310 goto error; |
| 35742 | 311 } |
| 312 error: | |
| 313 ast_error_finish(filename); | |
| 314 return NULL; | |
| 315 } | |
| 316 | |
| 317 /* Return the AST repr. of the operator represented as syntax (|, ^, etc.) | |
| 318 */ | |
| 319 | |
| 320 static operator_ty | |
| 321 get_operator(const node *n) | |
| 322 { | |
| 323 switch (TYPE(n)) { | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
324 case VBAR: |
|
72da48d96257
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41205
diff
changeset
|
325 return BitOr; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
326 case CIRCUMFLEX: |
|
72da48d96257
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41205
diff
changeset
|
327 return BitXor; |
|
72da48d96257
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41205
diff
changeset
|
328 case AMPER: |
|
72da48d96257
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41205
diff
changeset
|
329 return BitAnd; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
330 case LEFTSHIFT: |
|
72da48d96257
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41205
diff
changeset
|
331 return LShift; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
332 case RIGHTSHIFT: |
|
72da48d96257
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41205
diff
changeset
|
333 return RShift; |
|
72da48d96257
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41205
diff
changeset
|
334 case PLUS: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
335 return Add; |
|
72da48d96257
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336 case MINUS: |
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337 return Sub; |
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338 case STAR: |
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339 return Mult; |
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340 case SLASH: |
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341 return Div; |
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342 case DOUBLESLASH: |
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343 return FloorDiv; |
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344 case PERCENT: |
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345 return Mod; |
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346 default: |
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347 return (operator_ty)0; |
| 35742 | 348 } |
| 349 } | |
| 350 | |
|
36718
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351 /* Set the context ctx for expr_ty e, recursively traversing e. |
| 35742 | 352 |
| 353 Only sets context for expr kinds that "can appear in assignment context" | |
| 354 (according to ../Parser/Python.asdl). For other expr kinds, it sets | |
| 355 an appropriate syntax error and returns false. | |
| 356 */ | |
| 357 | |
| 358 static int | |
|
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359 set_context(struct compiling *c, expr_ty e, expr_context_ty ctx, const node *n) |
| 35742 | 360 { |
| 361 asdl_seq *s = NULL; | |
|
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362 /* If a particular expression type can't be used for assign / delete, |
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363 set expr_name to its name and an error message will be generated. |
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364 */ |
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365 const char* expr_name = NULL; |
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366 |
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367 /* The ast defines augmented store and load contexts, but the |
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368 implementation here doesn't actually use them. The code may be |
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369 a little more complex than necessary as a result. It also means |
|
39037
9f70f6ba7b69
Fix AST compiler bug #1501934: incorrect LOAD/STORE_GLOBAL generation.
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370 that expressions in an augmented assignment have a Store context. |
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371 Consider restructuring so that augmented assignment uses |
|
36695
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PEP 343 -- the with-statement.
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372 set_context(), too. |
|
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373 */ |
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374 assert(ctx != AugStore && ctx != AugLoad); |
| 35742 | 375 |
| 376 switch (e->kind) { | |
|
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377 case Attribute_kind: |
|
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378 if (ctx == Store && !forbidden_check(c, n, |
|
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379 PyBytes_AS_STRING(e->v.Attribute.attr))) |
|
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380 return 0; |
|
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381 e->v.Attribute.ctx = ctx; |
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382 break; |
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383 case Subscript_kind: |
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384 e->v.Subscript.ctx = ctx; |
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385 break; |
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386 case Name_kind: |
|
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387 if (ctx == Store && !forbidden_check(c, n, |
|
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|
388 PyBytes_AS_STRING(e->v.Name.id))) |
|
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389 return 0; |
|
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390 e->v.Name.ctx = ctx; |
|
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391 break; |
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392 case List_kind: |
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393 e->v.List.ctx = ctx; |
|
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394 s = e->v.List.elts; |
|
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|
395 break; |
|
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396 case Tuple_kind: |
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397 if (asdl_seq_LEN(e->v.Tuple.elts) == 0) |
|
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398 return ast_error(n, "can't assign to ()"); |
|
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399 e->v.Tuple.ctx = ctx; |
|
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400 s = e->v.Tuple.elts; |
|
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401 break; |
|
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|
402 case Lambda_kind: |
|
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403 expr_name = "lambda"; |
|
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|
404 break; |
|
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|
405 case Call_kind: |
|
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406 expr_name = "function call"; |
|
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407 break; |
|
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408 case BoolOp_kind: |
|
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409 case BinOp_kind: |
|
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410 case UnaryOp_kind: |
|
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411 expr_name = "operator"; |
|
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|
412 break; |
|
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|
413 case GeneratorExp_kind: |
|
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|
414 expr_name = "generator expression"; |
|
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|
415 break; |
|
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|
416 case Yield_kind: |
|
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|
417 expr_name = "yield expression"; |
|
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|
418 break; |
|
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|
419 case ListComp_kind: |
|
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|
420 expr_name = "list comprehension"; |
|
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|
421 break; |
|
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|
422 case Dict_kind: |
|
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|
423 case Num_kind: |
|
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|
424 case Str_kind: |
|
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|
425 expr_name = "literal"; |
|
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|
426 break; |
|
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changeset
|
427 case Compare_kind: |
|
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|
428 expr_name = "comparison"; |
|
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|
429 break; |
|
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changeset
|
430 case Repr_kind: |
|
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|
431 expr_name = "repr"; |
|
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|
432 break; |
|
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|
433 case IfExp_kind: |
|
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|
434 expr_name = "conditional expression"; |
|
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diff
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|
435 break; |
|
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diff
changeset
|
436 default: |
|
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changeset
|
437 PyErr_Format(PyExc_SystemError, |
|
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changeset
|
438 "unexpected expression in assignment %d (line %d)", |
|
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changeset
|
439 e->kind, e->lineno); |
|
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|
440 return 0; |
| 35742 | 441 } |
|
36418
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diff
changeset
|
442 /* Check for error string set by switch */ |
|
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changeset
|
443 if (expr_name) { |
|
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changeset
|
444 char buf[300]; |
|
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changeset
|
445 PyOS_snprintf(buf, sizeof(buf), |
|
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changeset
|
446 "can't %s %s", |
|
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changeset
|
447 ctx == Store ? "assign to" : "delete", |
|
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changeset
|
448 expr_name); |
|
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|
449 return ast_error(n, buf); |
|
36418
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diff
changeset
|
450 } |
|
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diff
changeset
|
451 |
| 35742 | 452 /* If the LHS is a list or tuple, we need to set the assignment |
|
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changeset
|
453 context for all the contained elements. |
| 35742 | 454 */ |
| 455 if (s) { | |
|
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changeset
|
456 int i; |
| 35742 | 457 |
|
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changeset
|
458 for (i = 0; i < asdl_seq_LEN(s); i++) { |
|
46642
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The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
459 if (!set_context(c, (expr_ty)asdl_seq_GET(s, i), ctx, n)) |
|
41215
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|
460 return 0; |
|
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diff
changeset
|
461 } |
| 35742 | 462 } |
| 463 return 1; | |
| 464 } | |
| 465 | |
| 466 static operator_ty | |
|
46642
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The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
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46200
diff
changeset
|
467 ast_for_augassign(struct compiling *c, const node *n) |
| 35742 | 468 { |
| 469 REQ(n, augassign); | |
| 470 n = CHILD(n, 0); | |
| 471 switch (STR(n)[0]) { | |
|
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changeset
|
472 case '+': |
|
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diff
changeset
|
473 return Add; |
|
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changeset
|
474 case '-': |
|
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diff
changeset
|
475 return Sub; |
|
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476 case '/': |
|
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|
477 if (STR(n)[1] == '/') |
|
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|
478 return FloorDiv; |
|
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|
479 else |
|
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|
480 return Div; |
|
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|
481 case '%': |
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|
482 return Mod; |
|
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|
483 case '<': |
|
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|
484 return LShift; |
|
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|
485 case '>': |
|
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|
486 return RShift; |
|
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|
487 case '&': |
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|
488 return BitAnd; |
|
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|
489 case '^': |
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490 return BitXor; |
|
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|
491 case '|': |
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492 return BitOr; |
|
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493 case '*': |
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|
494 if (STR(n)[1] == '*') |
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495 return Pow; |
|
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|
496 else |
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|
497 return Mult; |
|
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498 default: |
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|
499 PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n)); |
|
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500 return (operator_ty)0; |
| 35742 | 501 } |
| 502 } | |
| 503 | |
| 504 static cmpop_ty | |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
505 ast_for_comp_op(struct compiling *c, const node *n) |
| 35742 | 506 { |
| 507 /* comp_op: '<'|'>'|'=='|'>='|'<='|'<>'|'!='|'in'|'not' 'in'|'is' | |
|
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508 |'is' 'not' |
| 35742 | 509 */ |
| 510 REQ(n, comp_op); | |
| 511 if (NCH(n) == 1) { | |
|
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512 n = CHILD(n, 0); |
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513 switch (TYPE(n)) { |
|
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514 case LESS: |
|
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515 return Lt; |
|
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516 case GREATER: |
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517 return Gt; |
|
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518 case EQEQUAL: /* == */ |
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519 return Eq; |
|
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520 case LESSEQUAL: |
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521 return LtE; |
|
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522 case GREATEREQUAL: |
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523 return GtE; |
|
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524 case NOTEQUAL: |
|
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525 return NotEq; |
|
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526 case NAME: |
|
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|
527 if (strcmp(STR(n), "in") == 0) |
|
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|
528 return In; |
|
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|
529 if (strcmp(STR(n), "is") == 0) |
|
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|
530 return Is; |
|
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|
531 default: |
|
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|
532 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s", |
|
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|
533 STR(n)); |
|
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|
534 return (cmpop_ty)0; |
|
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|
535 } |
| 35742 | 536 } |
| 537 else if (NCH(n) == 2) { | |
|
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|
538 /* handle "not in" and "is not" */ |
|
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|
539 switch (TYPE(CHILD(n, 0))) { |
|
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diff
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|
540 case NAME: |
|
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|
541 if (strcmp(STR(CHILD(n, 1)), "in") == 0) |
|
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|
542 return NotIn; |
|
72da48d96257
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|
543 if (strcmp(STR(CHILD(n, 0)), "is") == 0) |
|
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|
544 return IsNot; |
|
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|
545 default: |
|
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changeset
|
546 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s", |
|
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diff
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|
547 STR(CHILD(n, 0)), STR(CHILD(n, 1))); |
|
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|
548 return (cmpop_ty)0; |
|
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|
549 } |
| 35742 | 550 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
551 PyErr_Format(PyExc_SystemError, "invalid comp_op: has %d children", |
|
41215
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diff
changeset
|
552 NCH(n)); |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
553 return (cmpop_ty)0; |
| 35742 | 554 } |
| 555 | |
| 556 static asdl_seq * | |
| 557 seq_for_testlist(struct compiling *c, const node *n) | |
| 558 { | |
| 559 /* testlist: test (',' test)* [','] */ | |
|
35759
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
560 asdl_seq *seq; |
|
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
561 expr_ty expression; |
|
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
562 int i; |
|
41215
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|
563 assert(TYPE(n) == testlist || |
|
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changeset
|
564 TYPE(n) == listmaker || |
|
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diff
changeset
|
565 TYPE(n) == testlist_gexp || |
|
72da48d96257
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diff
changeset
|
566 TYPE(n) == testlist_safe || |
|
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diff
changeset
|
567 TYPE(n) == testlist1); |
| 35742 | 568 |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
569 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 570 if (!seq) |
|
41215
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|
571 return NULL; |
| 35742 | 572 |
| 573 for (i = 0; i < NCH(n); i += 2) { | |
|
41215
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changeset
|
574 assert(TYPE(CHILD(n, i)) == test || TYPE(CHILD(n, i)) == old_test); |
| 35742 | 575 |
|
41215
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diff
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|
576 expression = ast_for_expr(c, CHILD(n, i)); |
|
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changeset
|
577 if (!expression) |
|
72da48d96257
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changeset
|
578 return NULL; |
| 35742 | 579 |
|
41215
72da48d96257
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diff
changeset
|
580 assert(i / 2 < seq->size); |
|
72da48d96257
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41205
diff
changeset
|
581 asdl_seq_SET(seq, i / 2, expression); |
| 35742 | 582 } |
| 583 return seq; | |
| 584 } | |
| 585 | |
| 586 static expr_ty | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
587 compiler_complex_args(struct compiling *c, const node *n) |
| 35742 | 588 { |
| 589 int i, len = (NCH(n) + 1) / 2; | |
| 590 expr_ty result; | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
591 asdl_seq *args = asdl_seq_new(len, c->c_arena); |
| 35742 | 592 if (!args) |
|
41215
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changeset
|
593 return NULL; |
| 35742 | 594 |
|
39872
b8cb7201379c
Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)).
Neal Norwitz <nnorwitz@gmail.com>
parents:
39779
diff
changeset
|
595 /* fpdef: NAME | '(' fplist ')' |
|
b8cb7201379c
Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)).
Neal Norwitz <nnorwitz@gmail.com>
parents:
39779
diff
changeset
|
596 fplist: fpdef (',' fpdef)* [','] |
|
b8cb7201379c
Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)).
Neal Norwitz <nnorwitz@gmail.com>
parents:
39779
diff
changeset
|
597 */ |
| 35742 | 598 REQ(n, fplist); |
| 599 for (i = 0; i < len; i++) { | |
|
41215
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changeset
|
600 const node *fpdef_node = CHILD(n, 2*i); |
|
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41205
diff
changeset
|
601 const node *child; |
|
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diff
changeset
|
602 expr_ty arg; |
|
39872
b8cb7201379c
Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)).
Neal Norwitz <nnorwitz@gmail.com>
parents:
39779
diff
changeset
|
603 set_name: |
|
41215
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diff
changeset
|
604 /* fpdef_node is either a NAME or an fplist */ |
|
72da48d96257
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diff
changeset
|
605 child = CHILD(fpdef_node, 0); |
|
72da48d96257
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diff
changeset
|
606 if (TYPE(child) == NAME) { |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
607 if (!forbidden_check(c, n, STR(child))) |
|
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
608 return NULL; |
|
41215
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diff
changeset
|
609 arg = Name(NEW_IDENTIFIER(child), Store, LINENO(child), |
|
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diff
changeset
|
610 child->n_col_offset, c->c_arena); |
|
72da48d96257
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diff
changeset
|
611 } |
|
72da48d96257
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diff
changeset
|
612 else { |
|
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diff
changeset
|
613 assert(TYPE(fpdef_node) == fpdef); |
|
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diff
changeset
|
614 /* fpdef_node[0] is not a name, so it must be '(', get CHILD[1] */ |
|
72da48d96257
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diff
changeset
|
615 child = CHILD(fpdef_node, 1); |
|
72da48d96257
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diff
changeset
|
616 assert(TYPE(child) == fplist); |
|
72da48d96257
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diff
changeset
|
617 /* NCH == 1 means we have (x), we need to elide the extra parens */ |
|
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diff
changeset
|
618 if (NCH(child) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
619 fpdef_node = CHILD(child, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
620 assert(TYPE(fpdef_node) == fpdef); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
621 goto set_name; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
622 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
623 arg = compiler_complex_args(c, child); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
624 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
625 asdl_seq_SET(args, i, arg); |
| 35742 | 626 } |
| 627 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
628 result = Tuple(args, Store, LINENO(n), n->n_col_offset, c->c_arena); |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
629 if (!set_context(c, result, Store, n)) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
630 return NULL; |
| 35742 | 631 return result; |
| 632 } | |
| 633 | |
| 634 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
635 /* Create AST for argument list. */ |
| 35742 | 636 |
| 637 static arguments_ty | |
| 638 ast_for_arguments(struct compiling *c, const node *n) | |
| 639 { | |
| 640 /* parameters: '(' [varargslist] ')' | |
| 641 varargslist: (fpdef ['=' test] ',')* ('*' NAME [',' '**' NAME] | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
642 | '**' NAME) | fpdef ['=' test] (',' fpdef ['=' test])* [','] |
| 35742 | 643 */ |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
644 int i, j, k, n_args = 0, n_defaults = 0, found_default = 0; |
| 35742 | 645 asdl_seq *args, *defaults; |
| 646 identifier vararg = NULL, kwarg = NULL; | |
| 647 node *ch; | |
| 648 | |
| 649 if (TYPE(n) == parameters) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
650 if (NCH(n) == 2) /* () as argument list */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
651 return arguments(NULL, NULL, NULL, NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
652 n = CHILD(n, 1); |
| 35742 | 653 } |
| 654 REQ(n, varargslist); | |
| 655 | |
| 656 /* first count the number of normal args & defaults */ | |
| 657 for (i = 0; i < NCH(n); i++) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
658 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
659 if (TYPE(ch) == fpdef) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
660 n_args++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
661 if (TYPE(ch) == EQUAL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
662 n_defaults++; |
| 35742 | 663 } |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
664 args = (n_args ? asdl_seq_new(n_args, c->c_arena) : NULL); |
| 35742 | 665 if (!args && n_args) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
666 return NULL; /* Don't need to goto error; no objects allocated */ |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
667 defaults = (n_defaults ? asdl_seq_new(n_defaults, c->c_arena) : NULL); |
| 35742 | 668 if (!defaults && n_defaults) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
669 return NULL; /* Don't need to goto error; no objects allocated */ |
| 35742 | 670 |
| 671 /* fpdef: NAME | '(' fplist ')' | |
| 672 fplist: fpdef (',' fpdef)* [','] | |
| 673 */ | |
| 674 i = 0; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
675 j = 0; /* index for defaults */ |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
676 k = 0; /* index for args */ |
| 35742 | 677 while (i < NCH(n)) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
678 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
679 switch (TYPE(ch)) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
680 case fpdef: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
681 handle_fpdef: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
682 /* XXX Need to worry about checking if TYPE(CHILD(n, i+1)) is |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
683 anything other than EQUAL or a comma? */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
684 /* XXX Should NCH(n) check be made a separate check? */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
685 if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
686 expr_ty expression = ast_for_expr(c, CHILD(n, i + 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
687 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
688 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
689 assert(defaults != NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
690 asdl_seq_SET(defaults, j++, expression); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
691 i += 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
692 found_default = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
693 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
694 else if (found_default) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
695 ast_error(n, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
696 "non-default argument follows default argument"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
697 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
698 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
699 if (NCH(ch) == 3) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
700 ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
701 /* def foo((x)): is not complex, special case. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
702 if (NCH(ch) != 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
703 /* We have complex arguments, setup for unpacking. */ |
|
47524
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
704 if (Py_Py3kWarningFlag && !ast_warn(c, ch, |
|
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
705 "tuple parameter unpacking has been removed in 3.x")) |
|
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
706 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
707 asdl_seq_SET(args, k++, compiler_complex_args(c, ch)); |
|
41579
7a4f174df844
Handle a couple of uncaught errors. This should be backported
Neal Norwitz <nnorwitz@gmail.com>
parents:
41578
diff
changeset
|
708 if (!asdl_seq_GET(args, k-1)) |
|
7a4f174df844
Handle a couple of uncaught errors. This should be backported
Neal Norwitz <nnorwitz@gmail.com>
parents:
41578
diff
changeset
|
709 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
710 } else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
711 /* def foo((x)): setup for checking NAME below. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
712 /* Loop because there can be many parens and tuple |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
713 unpacking mixed in. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
714 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
715 assert(TYPE(ch) == fpdef); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
716 goto handle_fpdef; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
717 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
718 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
719 if (TYPE(CHILD(ch, 0)) == NAME) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
720 expr_ty name; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
721 if (!forbidden_check(c, n, STR(CHILD(ch, 0)))) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
722 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
723 name = Name(NEW_IDENTIFIER(CHILD(ch, 0)), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
724 Param, LINENO(ch), ch->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
725 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
726 if (!name) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
727 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
728 asdl_seq_SET(args, k++, name); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
729 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
730 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
731 i += 2; /* the name and the comma */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
732 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
733 case STAR: |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
734 if (!forbidden_check(c, CHILD(n, i+1), STR(CHILD(n, i+1)))) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
735 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
736 vararg = NEW_IDENTIFIER(CHILD(n, i+1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
737 i += 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
738 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
739 case DOUBLESTAR: |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
740 if (!forbidden_check(c, CHILD(n, i+1), STR(CHILD(n, i+1)))) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
741 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
742 kwarg = NEW_IDENTIFIER(CHILD(n, i+1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
743 i += 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
744 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
745 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
746 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
747 "unexpected node in varargslist: %d @ %d", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
748 TYPE(ch), i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
749 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
750 } |
| 35742 | 751 } |
| 752 | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
753 return arguments(args, vararg, kwarg, defaults, c->c_arena); |
| 35742 | 754 |
| 755 error: | |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
756 Py_XDECREF(vararg); |
|
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
757 Py_XDECREF(kwarg); |
| 35742 | 758 return NULL; |
| 759 } | |
| 760 | |
| 761 static expr_ty | |
| 762 ast_for_dotted_name(struct compiling *c, const node *n) | |
| 763 { | |
|
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|
764 expr_ty e; |
|
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|
765 identifier id; |
|
36786
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Martin v. Löwis <martin@v.loewis.de>
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|
766 int lineno, col_offset; |
| 35742 | 767 int i; |
| 768 | |
| 769 REQ(n, dotted_name); | |
|
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diff
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|
770 |
|
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|
771 lineno = LINENO(n); |
|
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|
772 col_offset = n->n_col_offset; |
|
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|
773 |
| 35742 | 774 id = NEW_IDENTIFIER(CHILD(n, 0)); |
| 775 if (!id) | |
|
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|
776 return NULL; |
|
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|
777 e = Name(id, Load, lineno, col_offset, c->c_arena); |
| 35742 | 778 if (!e) |
|
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|
779 return NULL; |
| 35742 | 780 |
| 781 for (i = 2; i < NCH(n); i+=2) { | |
|
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|
782 id = NEW_IDENTIFIER(CHILD(n, i)); |
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783 if (!id) |
|
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|
784 return NULL; |
|
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785 e = Attribute(e, id, Load, lineno, col_offset, c->c_arena); |
|
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|
786 if (!e) |
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|
787 return NULL; |
| 35742 | 788 } |
| 789 | |
| 790 return e; | |
| 791 } | |
| 792 | |
| 793 static expr_ty | |
| 794 ast_for_decorator(struct compiling *c, const node *n) | |
| 795 { | |
| 796 /* decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE */ | |
| 797 expr_ty d = NULL; | |
|
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|
798 expr_ty name_expr; |
| 35742 | 799 |
| 800 REQ(n, decorator); | |
|
36418
a625e8876407
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diff
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|
801 REQ(CHILD(n, 0), AT); |
|
a625e8876407
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|
802 REQ(RCHILD(n, -1), NEWLINE); |
| 35742 | 803 |
| 804 name_expr = ast_for_dotted_name(c, CHILD(n, 1)); | |
| 805 if (!name_expr) | |
|
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806 return NULL; |
|
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|
807 |
| 35742 | 808 if (NCH(n) == 3) { /* No arguments */ |
|
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809 d = name_expr; |
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810 name_expr = NULL; |
| 35742 | 811 } |
| 812 else if (NCH(n) == 5) { /* Call with no arguments */ | |
|
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813 d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
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814 n->n_col_offset, c->c_arena); |
|
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815 if (!d) |
|
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|
816 return NULL; |
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|
817 name_expr = NULL; |
| 35742 | 818 } |
| 819 else { | |
|
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820 d = ast_for_call(c, CHILD(n, 3), name_expr); |
|
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821 if (!d) |
|
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|
822 return NULL; |
|
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|
823 name_expr = NULL; |
| 35742 | 824 } |
| 825 | |
| 826 return d; | |
| 827 } | |
| 828 | |
| 829 static asdl_seq* | |
| 830 ast_for_decorators(struct compiling *c, const node *n) | |
| 831 { | |
|
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|
832 asdl_seq* decorator_seq; |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
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diff
changeset
|
833 expr_ty d; |
| 35742 | 834 int i; |
| 835 | |
| 836 REQ(n, decorators); | |
|
36065
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36001
diff
changeset
|
837 decorator_seq = asdl_seq_new(NCH(n), c->c_arena); |
| 35742 | 838 if (!decorator_seq) |
|
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|
839 return NULL; |
|
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|
840 |
| 35742 | 841 for (i = 0; i < NCH(n); i++) { |
|
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842 d = ast_for_decorator(c, CHILD(n, i)); |
|
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|
843 if (!d) |
|
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|
844 return NULL; |
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|
845 asdl_seq_SET(decorator_seq, i, d); |
| 35742 | 846 } |
| 847 return decorator_seq; | |
| 848 } | |
| 849 | |
| 850 static stmt_ty | |
|
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diff
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|
851 ast_for_funcdef(struct compiling *c, const node *n, asdl_seq *decorator_seq) |
| 35742 | 852 { |
|
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changeset
|
853 /* funcdef: 'def' NAME parameters ':' suite */ |
|
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854 identifier name; |
|
de16a85c3b4c
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|
855 arguments_ty args; |
|
de16a85c3b4c
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|
856 asdl_seq *body; |
|
45447
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changeset
|
857 int name_i = 1; |
| 35742 | 858 |
| 859 REQ(n, funcdef); | |
| 860 | |
| 861 name = NEW_IDENTIFIER(CHILD(n, name_i)); | |
| 862 if (!name) | |
|
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863 return NULL; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
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47521
diff
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|
864 else if (!forbidden_check(c, CHILD(n, name_i), STR(CHILD(n, name_i)))) |
|
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|
865 return NULL; |
| 35742 | 866 args = ast_for_arguments(c, CHILD(n, name_i + 1)); |
| 867 if (!args) | |
|
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|
868 return NULL; |
| 35742 | 869 body = ast_for_suite(c, CHILD(n, name_i + 3)); |
| 870 if (!body) | |
|
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|
871 return NULL; |
| 35742 | 872 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
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diff
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|
873 return FunctionDef(name, args, body, decorator_seq, LINENO(n), |
|
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|
874 n->n_col_offset, c->c_arena); |
| 35742 | 875 } |
| 876 | |
|
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|
877 static stmt_ty |
|
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|
878 ast_for_decorated(struct compiling *c, const node *n) |
|
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|
879 { |
|
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|
880 /* decorated: decorators (classdef | funcdef) */ |
|
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881 stmt_ty thing = NULL; |
|
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|
882 asdl_seq *decorator_seq = NULL; |
|
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|
883 |
|
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|
884 REQ(n, decorated); |
|
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885 |
|
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|
886 decorator_seq = ast_for_decorators(c, CHILD(n, 0)); |
|
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|
887 if (!decorator_seq) |
|
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|
888 return NULL; |
|
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|
889 |
|
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|
890 assert(TYPE(CHILD(n, 1)) == funcdef || |
|
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|
891 TYPE(CHILD(n, 1)) == classdef); |
|
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diff
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|
892 |
|
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parents:
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diff
changeset
|
893 if (TYPE(CHILD(n, 1)) == funcdef) { |
|
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894 thing = ast_for_funcdef(c, CHILD(n, 1), decorator_seq); |
|
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diff
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|
895 } else if (TYPE(CHILD(n, 1)) == classdef) { |
|
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896 thing = ast_for_classdef(c, CHILD(n, 1), decorator_seq); |
|
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|
897 } |
|
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|
898 /* we count the decorators in when talking about the class' or |
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899 function's line number */ |
|
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900 if (thing) { |
|
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901 thing->lineno = LINENO(n); |
|
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902 thing->col_offset = n->n_col_offset; |
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903 } |
|
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|
904 return thing; |
|
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905 } |
|
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|
906 |
| 35742 | 907 static expr_ty |
| 908 ast_for_lambdef(struct compiling *c, const node *n) | |
| 909 { | |
| 910 /* lambdef: 'lambda' [varargslist] ':' test */ | |
| 911 arguments_ty args; | |
| 912 expr_ty expression; | |
| 913 | |
| 914 if (NCH(n) == 3) { | |
|
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|
915 args = arguments(NULL, NULL, NULL, NULL, c->c_arena); |
|
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|
916 if (!args) |
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917 return NULL; |
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918 expression = ast_for_expr(c, CHILD(n, 2)); |
|
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919 if (!expression) |
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920 return NULL; |
| 35742 | 921 } |
| 922 else { | |
|
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|
923 args = ast_for_arguments(c, CHILD(n, 1)); |
|
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924 if (!args) |
|
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925 return NULL; |
|
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926 expression = ast_for_expr(c, CHILD(n, 3)); |
|
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927 if (!expression) |
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|
928 return NULL; |
| 35742 | 929 } |
| 930 | |
|
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Patch #1440601: Add col_offset attribute to AST nodes.
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changeset
|
931 return Lambda(args, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 932 } |
| 933 | |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
934 static expr_ty |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
935 ast_for_ifexpr(struct compiling *c, const node *n) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
936 { |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
937 /* test: or_test 'if' or_test 'else' test */ |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
938 expr_ty expression, body, orelse; |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
939 |
|
36676
67c74efad8c2
Fix old not-reading-pep-308-right artifact.
Thomas Wouters <thomas@python.org>
parents:
36670
diff
changeset
|
940 assert(NCH(n) == 5); |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
941 body = ast_for_expr(c, CHILD(n, 0)); |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
942 if (!body) |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
943 return NULL; |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
944 expression = ast_for_expr(c, CHILD(n, 2)); |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
945 if (!expression) |
|
41215
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41205
diff
changeset
|
946 return NULL; |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
947 orelse = ast_for_expr(c, CHILD(n, 4)); |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
948 if (!orelse) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
949 return NULL; |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
950 return IfExp(expression, body, orelse, LINENO(n), n->n_col_offset, |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
951 c->c_arena); |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
952 } |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
953 |
|
39755
c591d9954fb3
Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39753
diff
changeset
|
954 /* XXX(nnorwitz): the listcomp and genexpr code should be refactored |
|
c591d9954fb3
Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39753
diff
changeset
|
955 so there is only a single version. Possibly for loops can also re-use |
|
c591d9954fb3
Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39753
diff
changeset
|
956 the code. |
|
c591d9954fb3
Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39753
diff
changeset
|
957 */ |
|
c591d9954fb3
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39753
diff
changeset
|
958 |
| 35742 | 959 /* Count the number of 'for' loop in a list comprehension. |
| 960 | |
| 961 Helper for ast_for_listcomp(). | |
| 962 */ | |
| 963 | |
| 964 static int | |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
965 count_list_fors(struct compiling *c, const node *n) |
| 35742 | 966 { |
| 967 int n_fors = 0; | |
| 968 node *ch = CHILD(n, 1); | |
| 969 | |
| 970 count_list_for: | |
| 971 n_fors++; | |
| 972 REQ(ch, list_for); | |
| 973 if (NCH(ch) == 5) | |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
974 ch = CHILD(ch, 4); |
| 35742 | 975 else |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
976 return n_fors; |
| 35742 | 977 count_list_iter: |
| 978 REQ(ch, list_iter); | |
| 979 ch = CHILD(ch, 0); | |
| 980 if (TYPE(ch) == list_for) | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
981 goto count_list_for; |
| 35742 | 982 else if (TYPE(ch) == list_if) { |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
983 if (NCH(ch) == 3) { |
|
72da48d96257
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diff
changeset
|
984 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
985 goto count_list_iter; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
986 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
987 else |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
988 return n_fors; |
| 35742 | 989 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
990 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
991 /* Should never be reached */ |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
992 PyErr_SetString(PyExc_SystemError, "logic error in count_list_fors"); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
993 return -1; |
| 35742 | 994 } |
| 995 | |
| 996 /* Count the number of 'if' statements in a list comprehension. | |
| 997 | |
| 998 Helper for ast_for_listcomp(). | |
| 999 */ | |
| 1000 | |
| 1001 static int | |
|
46642
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The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1002 count_list_ifs(struct compiling *c, const node *n) |
| 35742 | 1003 { |
| 1004 int n_ifs = 0; | |
| 1005 | |
| 1006 count_list_iter: | |
| 1007 REQ(n, list_iter); | |
| 1008 if (TYPE(CHILD(n, 0)) == list_for) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1009 return n_ifs; |
| 35742 | 1010 n = CHILD(n, 0); |
| 1011 REQ(n, list_if); | |
| 1012 n_ifs++; | |
| 1013 if (NCH(n) == 2) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1014 return n_ifs; |
| 35742 | 1015 n = CHILD(n, 2); |
| 1016 goto count_list_iter; | |
| 1017 } | |
| 1018 | |
| 1019 static expr_ty | |
| 1020 ast_for_listcomp(struct compiling *c, const node *n) | |
| 1021 { | |
| 1022 /* listmaker: test ( list_for | (',' test)* [','] ) | |
| 1023 list_for: 'for' exprlist 'in' testlist_safe [list_iter] | |
| 1024 list_iter: list_for | list_if | |
| 1025 list_if: 'if' test [list_iter] | |
| 1026 testlist_safe: test [(',' test)+ [',']] | |
| 1027 */ | |
| 1028 expr_ty elt; | |
| 1029 asdl_seq *listcomps; | |
| 1030 int i, n_fors; | |
| 1031 node *ch; | |
| 1032 | |
| 1033 REQ(n, listmaker); | |
| 1034 assert(NCH(n) > 1); | |
| 1035 | |
| 1036 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1037 if (!elt) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1038 return NULL; |
| 35742 | 1039 |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1040 n_fors = count_list_fors(c, n); |
| 35742 | 1041 if (n_fors == -1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1042 return NULL; |
| 35742 | 1043 |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1044 listcomps = asdl_seq_new(n_fors, c->c_arena); |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1045 if (!listcomps) |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1046 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1047 |
| 35742 | 1048 ch = CHILD(n, 1); |
| 1049 for (i = 0; i < n_fors; i++) { | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1050 comprehension_ty lc; |
|
72da48d96257
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diff
changeset
|
1051 asdl_seq *t; |
|
72da48d96257
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41205
diff
changeset
|
1052 expr_ty expression; |
|
72da48d96257
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41205
diff
changeset
|
1053 node *for_ch; |
|
72da48d96257
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diff
changeset
|
1054 |
|
72da48d96257
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diff
changeset
|
1055 REQ(ch, list_for); |
|
72da48d96257
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diff
changeset
|
1056 |
|
72da48d96257
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41205
diff
changeset
|
1057 for_ch = CHILD(ch, 1); |
|
72da48d96257
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diff
changeset
|
1058 t = ast_for_exprlist(c, for_ch, Store); |
|
72da48d96257
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diff
changeset
|
1059 if (!t) |
|
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diff
changeset
|
1060 return NULL; |
|
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diff
changeset
|
1061 expression = ast_for_testlist(c, CHILD(ch, 3)); |
|
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diff
changeset
|
1062 if (!expression) |
|
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diff
changeset
|
1063 return NULL; |
|
72da48d96257
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diff
changeset
|
1064 |
|
72da48d96257
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diff
changeset
|
1065 /* Check the # of children rather than the length of t, since |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1066 [x for x, in ... ] has 1 element in t, but still requires a Tuple. |
|
72da48d96257
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diff
changeset
|
1067 */ |
|
72da48d96257
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diff
changeset
|
1068 if (NCH(for_ch) == 1) |
|
72da48d96257
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diff
changeset
|
1069 lc = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, NULL, |
|
72da48d96257
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diff
changeset
|
1070 c->c_arena); |
|
72da48d96257
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diff
changeset
|
1071 else |
|
72da48d96257
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diff
changeset
|
1072 lc = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset, |
|
72da48d96257
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diff
changeset
|
1073 c->c_arena), |
|
72da48d96257
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diff
changeset
|
1074 expression, NULL, c->c_arena); |
|
72da48d96257
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diff
changeset
|
1075 if (!lc) |
|
72da48d96257
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diff
changeset
|
1076 return NULL; |
| 35742 | 1077 |
|
41215
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diff
changeset
|
1078 if (NCH(ch) == 5) { |
|
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diff
changeset
|
1079 int j, n_ifs; |
|
72da48d96257
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diff
changeset
|
1080 asdl_seq *ifs; |
|
72da48d96257
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41205
diff
changeset
|
1081 expr_ty list_for_expr; |
| 35742 | 1082 |
|
41215
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diff
changeset
|
1083 ch = CHILD(ch, 4); |
|
46642
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The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1084 n_ifs = count_list_ifs(c, ch); |
|
41215
72da48d96257
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41205
diff
changeset
|
1085 if (n_ifs == -1) |
|
72da48d96257
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diff
changeset
|
1086 return NULL; |
| 35742 | 1087 |
|
41215
72da48d96257
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41205
diff
changeset
|
1088 ifs = asdl_seq_new(n_ifs, c->c_arena); |
|
72da48d96257
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diff
changeset
|
1089 if (!ifs) |
|
72da48d96257
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diff
changeset
|
1090 return NULL; |
| 35742 | 1091 |
|
41215
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diff
changeset
|
1092 for (j = 0; j < n_ifs; j++) { |
|
72da48d96257
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diff
changeset
|
1093 REQ(ch, list_iter); |
|
72da48d96257
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diff
changeset
|
1094 ch = CHILD(ch, 0); |
|
72da48d96257
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diff
changeset
|
1095 REQ(ch, list_if); |
|
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diff
changeset
|
1096 |
|
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diff
changeset
|
1097 list_for_expr = ast_for_expr(c, CHILD(ch, 1)); |
|
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diff
changeset
|
1098 if (!list_for_expr) |
|
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diff
changeset
|
1099 return NULL; |
|
72da48d96257
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parents:
41205
diff
changeset
|
1100 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1101 asdl_seq_SET(ifs, j, list_for_expr); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1102 if (NCH(ch) == 3) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1103 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1104 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1105 /* on exit, must guarantee that ch is a list_for */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1106 if (TYPE(ch) == list_iter) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1107 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1108 lc->ifs = ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1109 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1110 asdl_seq_SET(listcomps, i, lc); |
| 35742 | 1111 } |
| 1112 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1113 return ListComp(elt, listcomps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1114 } |
| 1115 | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1116 /* Count the number of 'for' loops in a generator expression. |
| 35742 | 1117 |
| 1118 Helper for ast_for_genexp(). | |
| 1119 */ | |
| 1120 | |
| 1121 static int | |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1122 count_gen_fors(struct compiling *c, const node *n) |
| 35742 | 1123 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1124 int n_fors = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1125 node *ch = CHILD(n, 1); |
| 35742 | 1126 |
| 1127 count_gen_for: | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1128 n_fors++; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1129 REQ(ch, gen_for); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1130 if (NCH(ch) == 5) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1131 ch = CHILD(ch, 4); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1132 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1133 return n_fors; |
| 35742 | 1134 count_gen_iter: |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1135 REQ(ch, gen_iter); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1136 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1137 if (TYPE(ch) == gen_for) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1138 goto count_gen_for; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1139 else if (TYPE(ch) == gen_if) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1140 if (NCH(ch) == 3) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1141 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1142 goto count_gen_iter; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1143 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1144 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1145 return n_fors; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1146 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1147 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1148 /* Should never be reached */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1149 PyErr_SetString(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1150 "logic error in count_gen_fors"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1151 return -1; |
| 35742 | 1152 } |
| 1153 | |
| 1154 /* Count the number of 'if' statements in a generator expression. | |
| 1155 | |
| 1156 Helper for ast_for_genexp(). | |
| 1157 */ | |
| 1158 | |
| 1159 static int | |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1160 count_gen_ifs(struct compiling *c, const node *n) |
| 35742 | 1161 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1162 int n_ifs = 0; |
| 35742 | 1163 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1164 while (1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1165 REQ(n, gen_iter); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1166 if (TYPE(CHILD(n, 0)) == gen_for) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1167 return n_ifs; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1168 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1169 REQ(n, gen_if); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1170 n_ifs++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1171 if (NCH(n) == 2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1172 return n_ifs; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1173 n = CHILD(n, 2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1174 } |
| 35742 | 1175 } |
| 1176 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1177 /* TODO(jhylton): Combine with list comprehension code? */ |
| 35742 | 1178 static expr_ty |
| 1179 ast_for_genexp(struct compiling *c, const node *n) | |
| 1180 { | |
| 1181 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1182 argument: [test '='] test [gen_for] # Really [keyword '='] test */ |
| 35742 | 1183 expr_ty elt; |
| 1184 asdl_seq *genexps; | |
| 1185 int i, n_fors; | |
| 1186 node *ch; | |
| 1187 | |
| 1188 assert(TYPE(n) == (testlist_gexp) || TYPE(n) == (argument)); | |
| 1189 assert(NCH(n) > 1); | |
| 1190 | |
| 1191 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1192 if (!elt) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1193 return NULL; |
| 35742 | 1194 |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1195 n_fors = count_gen_fors(c, n); |
| 35742 | 1196 if (n_fors == -1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1197 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1198 |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1199 genexps = asdl_seq_new(n_fors, c->c_arena); |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1200 if (!genexps) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1201 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1202 |
| 35742 | 1203 ch = CHILD(n, 1); |
| 1204 for (i = 0; i < n_fors; i++) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1205 comprehension_ty ge; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1206 asdl_seq *t; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1207 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1208 node *for_ch; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1209 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1210 REQ(ch, gen_for); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1211 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1212 for_ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1213 t = ast_for_exprlist(c, for_ch, Store); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1214 if (!t) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1215 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1216 expression = ast_for_expr(c, CHILD(ch, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1217 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1218 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1219 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1220 /* Check the # of children rather than the length of t, since |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1221 (x for x, in ...) has 1 element in t, but still requires a Tuple. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1222 if (NCH(for_ch) == 1) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1223 ge = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1224 NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1225 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1226 ge = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1227 c->c_arena), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1228 expression, NULL, c->c_arena); |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1229 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1230 if (!ge) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1231 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1232 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1233 if (NCH(ch) == 5) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1234 int j, n_ifs; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1235 asdl_seq *ifs; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1236 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1237 ch = CHILD(ch, 4); |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1238 n_ifs = count_gen_ifs(c, ch); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1239 if (n_ifs == -1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1240 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1241 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1242 ifs = asdl_seq_new(n_ifs, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1243 if (!ifs) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1244 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1245 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1246 for (j = 0; j < n_ifs; j++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1247 REQ(ch, gen_iter); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1248 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1249 REQ(ch, gen_if); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1250 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1251 expression = ast_for_expr(c, CHILD(ch, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1252 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1253 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1254 asdl_seq_SET(ifs, j, expression); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1255 if (NCH(ch) == 3) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1256 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1257 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1258 /* on exit, must guarantee that ch is a gen_for */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1259 if (TYPE(ch) == gen_iter) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1260 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1261 ge->ifs = ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1262 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1263 asdl_seq_SET(genexps, i, ge); |
| 35742 | 1264 } |
| 1265 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1266 return GeneratorExp(elt, genexps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1267 } |
| 1268 | |
| 1269 static expr_ty | |
| 1270 ast_for_atom(struct compiling *c, const node *n) | |
| 1271 { | |
| 1272 /* atom: '(' [yield_expr|testlist_gexp] ')' | '[' [listmaker] ']' | |
| 1273 | '{' [dictmaker] '}' | '`' testlist '`' | NAME | NUMBER | STRING+ | |
| 1274 */ | |
| 1275 node *ch = CHILD(n, 0); | |
| 1276 | |
| 1277 switch (TYPE(ch)) { | |
| 1278 case NAME: | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1279 /* All names start in Load context, but may later be |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1280 changed. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1281 return Name(NEW_IDENTIFIER(ch), Load, LINENO(n), n->n_col_offset, |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1282 c->c_arena); |
| 35742 | 1283 case STRING: { |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1284 PyObject *str = parsestrplus(c, n); |
|
42308
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1285 if (!str) { |
|
44572
db5e01c33eb7
Make Python compile with --disable-unicode.
Georg Brandl <georg@python.org>
parents:
43997
diff
changeset
|
1286 #ifdef Py_USING_UNICODE |
|
42308
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1287 if (PyErr_ExceptionMatches(PyExc_UnicodeError)){ |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1288 PyObject *type, *value, *tback, *errstr; |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1289 PyErr_Fetch(&type, &value, &tback); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1290 errstr = ((PyUnicodeErrorObject *)value)->reason; |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1291 if (errstr) { |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1292 char *s = ""; |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1293 char buf[128]; |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
1294 s = PyString_AsString(errstr); |
|
42308
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1295 PyOS_snprintf(buf, sizeof(buf), "(unicode error) %s", s); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1296 ast_error(n, buf); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1297 } else { |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1298 ast_error(n, "(unicode error) unknown error"); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1299 } |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1300 Py_DECREF(type); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1301 Py_DECREF(value); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1302 Py_XDECREF(tback); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1303 } |
|
44572
db5e01c33eb7
Make Python compile with --disable-unicode.
Georg Brandl <georg@python.org>
parents:
43997
diff
changeset
|
1304 #endif |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1305 return NULL; |
|
42308
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1306 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1307 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1308 return Str(str, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1309 } |
| 1310 case NUMBER: { | |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1311 PyObject *pynum = parsenumber(c, STR(ch)); |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1312 if (!pynum) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1313 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1314 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1315 PyArena_AddPyObject(c->c_arena, pynum); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1316 return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1317 } |
| 1318 case LPAR: /* some parenthesized expressions */ | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1319 ch = CHILD(n, 1); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1320 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1321 if (TYPE(ch) == RPAR) |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
1322 return Tuple(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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41205
diff
changeset
|
1323 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1324 if (TYPE(ch) == yield_expr) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1325 return ast_for_expr(c, ch); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1326 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1327 if ((NCH(ch) > 1) && (TYPE(CHILD(ch, 1)) == gen_for)) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1328 return ast_for_genexp(c, ch); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1329 |
|
72da48d96257
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parents:
41205
diff
changeset
|
1330 return ast_for_testlist_gexp(c, ch); |
| 35742 | 1331 case LSQB: /* list (or list comprehension) */ |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1332 ch = CHILD(n, 1); |
|
72da48d96257
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41205
diff
changeset
|
1333 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1334 if (TYPE(ch) == RSQB) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1335 return List(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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41205
diff
changeset
|
1336 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1337 REQ(ch, listmaker); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1338 if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1339 asdl_seq *elts = seq_for_testlist(c, ch); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1340 if (!elts) |
|
72da48d96257
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41205
diff
changeset
|
1341 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1342 |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1343 return List(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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diff
changeset
|
1344 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1345 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1346 return ast_for_listcomp(c, ch); |
| 35742 | 1347 case LBRACE: { |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1348 /* dictmaker: test ':' test (',' test ':' test)* [','] */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1349 int i, size; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1350 asdl_seq *keys, *values; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1351 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1352 ch = CHILD(n, 1); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1353 size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1354 keys = asdl_seq_new(size, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1355 if (!keys) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1356 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1357 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1358 values = asdl_seq_new(size, c->c_arena); |
|
72da48d96257
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41205
diff
changeset
|
1359 if (!values) |
|
72da48d96257
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41205
diff
changeset
|
1360 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1361 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1362 for (i = 0; i < NCH(ch); i += 4) { |
|
72da48d96257
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41205
diff
changeset
|
1363 expr_ty expression; |
|
72da48d96257
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41205
diff
changeset
|
1364 |
|
72da48d96257
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parents:
41205
diff
changeset
|
1365 expression = ast_for_expr(c, CHILD(ch, i)); |
|
72da48d96257
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41205
diff
changeset
|
1366 if (!expression) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1367 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1368 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1369 asdl_seq_SET(keys, i / 4, expression); |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1370 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1371 expression = ast_for_expr(c, CHILD(ch, i + 2)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1372 if (!expression) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1373 return NULL; |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
1374 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1375 asdl_seq_SET(values, i / 4, expression); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1376 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1377 return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1378 } |
| 1379 case BACKQUOTE: { /* repr */ | |
|
43985
2230f16e402b
And yet another fix for the patch. Paul Moore has send me a note that I've missed a declaration. The additional code has moved the declaration in the middle of the block.
Christian Heimes <christian@cheimes.de>
parents:
43984
diff
changeset
|
1380 expr_ty expression; |
|
47521
31aee67019a2
add an ast_warn helper function to make adding those Py3k warnings easier
Benjamin Peterson <benjamin@python.org>
parents:
47516
diff
changeset
|
1381 if (Py_Py3kWarningFlag && |
|
31aee67019a2
add an ast_warn helper function to make adding those Py3k warnings easier
Benjamin Peterson <benjamin@python.org>
parents:
47516
diff
changeset
|
1382 !ast_warn(c, n, "backquote not supported in 3.x; use repr()")) |
|
43985
2230f16e402b
And yet another fix for the patch. Paul Moore has send me a note that I've missed a declaration. The additional code has moved the declaration in the middle of the block.
Christian Heimes <christian@cheimes.de>
parents:
43984
diff
changeset
|
1383 return NULL; |
|
2230f16e402b
And yet another fix for the patch. Paul Moore has send me a note that I've missed a declaration. The additional code has moved the declaration in the middle of the block.
Christian Heimes <christian@cheimes.de>
parents:
43984
diff
changeset
|
1384 expression = ast_for_testlist(c, CHILD(n, 1)); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1385 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1386 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1387 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1388 return Repr(expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1389 } |
| 1390 default: | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1391 PyErr_Format(PyExc_SystemError, "unhandled atom %d", TYPE(ch)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1392 return NULL; |
| 35742 | 1393 } |
| 1394 } | |
| 1395 | |
| 1396 static slice_ty | |
| 1397 ast_for_slice(struct compiling *c, const node *n) | |
| 1398 { | |
| 1399 node *ch; | |
| 1400 expr_ty lower = NULL, upper = NULL, step = NULL; | |
| 1401 | |
| 1402 REQ(n, subscript); | |
| 1403 | |
| 1404 /* | |
| 1405 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] | |
| 1406 sliceop: ':' [test] | |
| 1407 */ | |
| 1408 ch = CHILD(n, 0); | |
| 1409 if (TYPE(ch) == DOT) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1410 return Ellipsis(c->c_arena); |
| 35742 | 1411 |
| 1412 if (NCH(n) == 1 && TYPE(ch) == test) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1413 /* 'step' variable hold no significance in terms of being used over |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1414 other vars */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1415 step = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1416 if (!step) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1417 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1418 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1419 return Index(step, c->c_arena); |
| 35742 | 1420 } |
| 1421 | |
| 1422 if (TYPE(ch) == test) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1423 lower = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1424 if (!lower) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1425 return NULL; |
| 35742 | 1426 } |
| 1427 | |
| 1428 /* If there's an upper bound it's in the second or third position. */ | |
| 1429 if (TYPE(ch) == COLON) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1430 if (NCH(n) > 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1431 node *n2 = CHILD(n, 1); |
| 35742 | 1432 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1433 if (TYPE(n2) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1434 upper = ast_for_expr(c, n2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1435 if (!upper) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1436 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1437 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1438 } |
| 35742 | 1439 } else if (NCH(n) > 2) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1440 node *n2 = CHILD(n, 2); |
| 35742 | 1441 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1442 if (TYPE(n2) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1443 upper = ast_for_expr(c, n2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1444 if (!upper) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1445 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1446 } |
| 35742 | 1447 } |
| 1448 | |
| 1449 ch = CHILD(n, NCH(n) - 1); | |
| 1450 if (TYPE(ch) == sliceop) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1451 if (NCH(ch) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1452 /* No expression, so step is None */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1453 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1454 step = Name(new_identifier("None", c->c_arena), Load, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1455 LINENO(ch), ch->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1456 if (!step) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1457 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1458 } else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1459 ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1460 if (TYPE(ch) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1461 step = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1462 if (!step) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1463 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1464 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1465 } |
| 35742 | 1466 } |
| 1467 | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1468 return Slice(lower, upper, step, c->c_arena); |
| 35742 | 1469 } |
| 1470 | |
| 1471 static expr_ty | |
| 1472 ast_for_binop(struct compiling *c, const node *n) | |
| 1473 { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1474 /* Must account for a sequence of expressions. |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1475 How should A op B op C by represented? |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1476 BinOp(BinOp(A, op, B), op, C). |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1477 */ |
| 35742 | 1478 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1479 int i, nops; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1480 expr_ty expr1, expr2, result; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1481 operator_ty newoperator; |
| 35742 | 1482 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1483 expr1 = ast_for_expr(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1484 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1485 return NULL; |
| 35742 | 1486 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1487 expr2 = ast_for_expr(c, CHILD(n, 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1488 if (!expr2) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1489 return NULL; |
| 35742 | 1490 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1491 newoperator = get_operator(CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1492 if (!newoperator) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1493 return NULL; |
| 35742 | 1494 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1495 result = BinOp(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1496 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1497 if (!result) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1498 return NULL; |
| 35742 | 1499 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1500 nops = (NCH(n) - 1) / 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1501 for (i = 1; i < nops; i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1502 expr_ty tmp_result, tmp; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1503 const node* next_oper = CHILD(n, i * 2 + 1); |
| 35742 | 1504 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1505 newoperator = get_operator(next_oper); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1506 if (!newoperator) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1507 return NULL; |
| 35742 | 1508 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1509 tmp = ast_for_expr(c, CHILD(n, i * 2 + 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1510 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1511 return NULL; |
| 35742 | 1512 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1513 tmp_result = BinOp(result, newoperator, tmp, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1514 LINENO(next_oper), next_oper->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1515 c->c_arena); |
|
43470
995677219a65
Fix Coverity #158: Check the correct variable.
Neal Norwitz <nnorwitz@gmail.com>
parents:
42459
diff
changeset
|
1516 if (!tmp_result) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1517 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1518 result = tmp_result; |
|
72da48d96257
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parents:
41205
diff
changeset
|
1519 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1520 return result; |
| 35742 | 1521 } |
| 1522 | |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1523 static expr_ty |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1524 ast_for_trailer(struct compiling *c, const node *n, expr_ty left_expr) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1525 { |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1526 /* trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1527 subscriptlist: subscript (',' subscript)* [','] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1528 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1529 */ |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1530 REQ(n, trailer); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1531 if (TYPE(CHILD(n, 0)) == LPAR) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1532 if (NCH(n) == 2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1533 return Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1534 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1535 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1536 return ast_for_call(c, CHILD(n, 1), left_expr); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1537 } |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1538 else if (TYPE(CHILD(n, 0)) == DOT ) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1539 return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1540 LINENO(n), n->n_col_offset, c->c_arena); |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1541 } |
|
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1542 else { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1543 REQ(CHILD(n, 0), LSQB); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1544 REQ(CHILD(n, 2), RSQB); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1545 n = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1546 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1547 slice_ty slc = ast_for_slice(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1548 if (!slc) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1549 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1550 return Subscript(left_expr, slc, Load, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1551 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1552 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1553 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1554 /* The grammar is ambiguous here. The ambiguity is resolved |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1555 by treating the sequence as a tuple literal if there are |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1556 no slice features. |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1557 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1558 int j; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1559 slice_ty slc; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1560 expr_ty e; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1561 bool simple = true; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1562 asdl_seq *slices, *elts; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1563 slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1564 if (!slices) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1565 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1566 for (j = 0; j < NCH(n); j += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1567 slc = ast_for_slice(c, CHILD(n, j)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1568 if (!slc) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1569 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1570 if (slc->kind != Index_kind) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1571 simple = false; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1572 asdl_seq_SET(slices, j / 2, slc); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1573 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1574 if (!simple) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1575 return Subscript(left_expr, ExtSlice(slices, c->c_arena), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1576 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1577 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1578 /* extract Index values and put them in a Tuple */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1579 elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1580 if (!elts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1581 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1582 for (j = 0; j < asdl_seq_LEN(slices); ++j) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1583 slc = (slice_ty)asdl_seq_GET(slices, j); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1584 assert(slc->kind == Index_kind && slc->v.Index.value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1585 asdl_seq_SET(elts, j, slc->v.Index.value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1586 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1587 e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1588 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1589 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1590 return Subscript(left_expr, Index(e, c->c_arena), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1591 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1592 } |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1593 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1594 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1595 |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1596 static expr_ty |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1597 ast_for_factor(struct compiling *c, const node *n) |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1598 { |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1599 node *pfactor, *ppower, *patom, *pnum; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1600 expr_ty expression; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1601 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1602 /* If the unary - operator is applied to a constant, don't generate |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1603 a UNARY_NEGATIVE opcode. Just store the approriate value as a |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1604 constant. The peephole optimizer already does something like |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1605 this but it doesn't handle the case where the constant is |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1606 (sys.maxint - 1). In that case, we want a PyIntObject, not a |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1607 PyLongObject. |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1608 */ |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1609 if (TYPE(CHILD(n, 0)) == MINUS && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1610 NCH(n) == 2 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1611 TYPE((pfactor = CHILD(n, 1))) == factor && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1612 NCH(pfactor) == 1 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1613 TYPE((ppower = CHILD(pfactor, 0))) == power && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1614 NCH(ppower) == 1 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1615 TYPE((patom = CHILD(ppower, 0))) == atom && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1616 TYPE((pnum = CHILD(patom, 0))) == NUMBER) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1617 char *s = PyObject_MALLOC(strlen(STR(pnum)) + 2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1618 if (s == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1619 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1620 s[0] = '-'; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1621 strcpy(s + 1, STR(pnum)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1622 PyObject_FREE(STR(pnum)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1623 STR(pnum) = s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1624 return ast_for_atom(c, patom); |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1625 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1626 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1627 expression = ast_for_expr(c, CHILD(n, 1)); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1628 if (!expression) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1629 return NULL; |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1630 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1631 switch (TYPE(CHILD(n, 0))) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1632 case PLUS: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1633 return UnaryOp(UAdd, expression, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1634 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1635 case MINUS: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1636 return UnaryOp(USub, expression, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1637 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1638 case TILDE: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1639 return UnaryOp(Invert, expression, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1640 n->n_col_offset, c->c_arena); |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1641 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1642 PyErr_Format(PyExc_SystemError, "unhandled factor: %d", |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1643 TYPE(CHILD(n, 0))); |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1644 return NULL; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1645 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1646 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1647 static expr_ty |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1648 ast_for_power(struct compiling *c, const node *n) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1649 { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1650 /* power: atom trailer* ('**' factor)* |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1651 */ |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1652 int i; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1653 expr_ty e, tmp; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1654 REQ(n, power); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1655 e = ast_for_atom(c, CHILD(n, 0)); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1656 if (!e) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1657 return NULL; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1658 if (NCH(n) == 1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1659 return e; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1660 for (i = 1; i < NCH(n); i++) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1661 node *ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1662 if (TYPE(ch) != trailer) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1663 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1664 tmp = ast_for_trailer(c, ch, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1665 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1666 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1667 tmp->lineno = e->lineno; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1668 tmp->col_offset = e->col_offset; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1669 e = tmp; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1670 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1671 if (TYPE(CHILD(n, NCH(n) - 1)) == factor) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1672 expr_ty f = ast_for_expr(c, CHILD(n, NCH(n) - 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1673 if (!f) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1674 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1675 tmp = BinOp(e, Pow, f, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1676 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1677 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1678 e = tmp; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1679 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1680 return e; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1681 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1682 |
| 35742 | 1683 /* Do not name a variable 'expr'! Will cause a compile error. |
| 1684 */ | |
| 1685 | |
| 1686 static expr_ty | |
| 1687 ast_for_expr(struct compiling *c, const node *n) | |
| 1688 { | |
| 1689 /* handle the full range of simple expressions | |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1690 test: or_test ['if' or_test 'else' test] | lambdef |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1691 or_test: and_test ('or' and_test)* |
| 35742 | 1692 and_test: not_test ('and' not_test)* |
| 1693 not_test: 'not' not_test | comparison | |
| 1694 comparison: expr (comp_op expr)* | |
| 1695 expr: xor_expr ('|' xor_expr)* | |
| 1696 xor_expr: and_expr ('^' and_expr)* | |
| 1697 and_expr: shift_expr ('&' shift_expr)* | |
| 1698 shift_expr: arith_expr (('<<'|'>>') arith_expr)* | |
| 1699 arith_expr: term (('+'|'-') term)* | |
| 1700 term: factor (('*'|'/'|'%'|'//') factor)* | |
| 1701 factor: ('+'|'-'|'~') factor | power | |
| 1702 power: atom trailer* ('**' factor)* | |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1703 |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1704 As well as modified versions that exist for backward compatibility, |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1705 to explicitly allow: |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1706 [ x for x in lambda: 0, lambda: 1 ] |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1707 (which would be ambiguous without these extra rules) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1708 |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1709 old_test: or_test | old_lambdef |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1710 old_lambdef: 'lambda' [vararglist] ':' old_test |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1711 |
| 35742 | 1712 */ |
| 1713 | |
| 1714 asdl_seq *seq; | |
| 1715 int i; | |
| 1716 | |
| 1717 loop: | |
| 1718 switch (TYPE(n)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1719 case test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1720 case old_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1721 if (TYPE(CHILD(n, 0)) == lambdef || |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1722 TYPE(CHILD(n, 0)) == old_lambdef) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1723 return ast_for_lambdef(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1724 else if (NCH(n) > 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1725 return ast_for_ifexpr(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1726 /* Fallthrough */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1727 case or_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1728 case and_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1729 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1730 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1731 goto loop; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1732 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1733 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1734 if (!seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1735 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1736 for (i = 0; i < NCH(n); i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1737 expr_ty e = ast_for_expr(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1738 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1739 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1740 asdl_seq_SET(seq, i / 2, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1741 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1742 if (!strcmp(STR(CHILD(n, 1)), "and")) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1743 return BoolOp(And, seq, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1744 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1745 assert(!strcmp(STR(CHILD(n, 1)), "or")); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1746 return BoolOp(Or, seq, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1747 case not_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1748 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1749 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1750 goto loop; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1751 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1752 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1753 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1754 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1755 return NULL; |
| 35742 | 1756 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1757 return UnaryOp(Not, expression, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1758 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1759 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1760 case comparison: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1761 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1762 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1763 goto loop; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1764 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1765 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1766 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1767 asdl_int_seq *ops; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1768 asdl_seq *cmps; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1769 ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1770 if (!ops) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1771 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1772 cmps = asdl_seq_new(NCH(n) / 2, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1773 if (!cmps) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1774 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1775 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1776 for (i = 1; i < NCH(n); i += 2) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1777 cmpop_ty newoperator; |
| 35742 | 1778 |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1779 newoperator = ast_for_comp_op(c, CHILD(n, i)); |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1780 if (!newoperator) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1781 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1782 } |
| 35742 | 1783 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1784 expression = ast_for_expr(c, CHILD(n, i + 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1785 if (!expression) { |
|
72da48d96257
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41205
diff
changeset
|
1786 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1787 } |
|
72da48d96257
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diff
changeset
|
1788 |
|
72da48d96257
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parents:
41205
diff
changeset
|
1789 asdl_seq_SET(ops, i / 2, newoperator); |
|
72da48d96257
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41205
diff
changeset
|
1790 asdl_seq_SET(cmps, i / 2, expression); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1791 } |
|
72da48d96257
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parents:
41205
diff
changeset
|
1792 expression = ast_for_expr(c, CHILD(n, 0)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1793 if (!expression) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1794 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1795 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1796 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1797 return Compare(expression, ops, cmps, LINENO(n), |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1798 n->n_col_offset, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1799 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1800 break; |
| 35742 | 1801 |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1802 /* The next five cases all handle BinOps. The main body of code |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1803 is the same in each case, but the switch turned inside out to |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1804 reuse the code for each type of operator. |
|
72da48d96257
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41205
diff
changeset
|
1805 */ |
|
72da48d96257
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41205
diff
changeset
|
1806 case expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1807 case xor_expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1808 case and_expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1809 case shift_expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1810 case arith_expr: |
|
72da48d96257
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41205
diff
changeset
|
1811 case term: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1812 if (NCH(n) == 1) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1813 n = CHILD(n, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1814 goto loop; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1815 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1816 return ast_for_binop(c, n); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1817 case yield_expr: { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1818 expr_ty exp = NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1819 if (NCH(n) == 2) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1820 exp = ast_for_testlist(c, CHILD(n, 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1821 if (!exp) |
|
72da48d96257
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41205
diff
changeset
|
1822 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1823 } |
|
72da48d96257
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41205
diff
changeset
|
1824 return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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41205
diff
changeset
|
1825 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1826 case factor: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1827 if (NCH(n) == 1) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1828 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1829 goto loop; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1830 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1831 return ast_for_factor(c, n); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1832 case power: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1833 return ast_for_power(c, n); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1834 default: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1835 PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1836 return NULL; |
| 35742 | 1837 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1838 /* should never get here unless if error is set */ |
| 35742 | 1839 return NULL; |
| 1840 } | |
| 1841 | |
| 1842 static expr_ty | |
| 1843 ast_for_call(struct compiling *c, const node *n, expr_ty func) | |
| 1844 { | |
| 1845 /* | |
| 1846 arglist: (argument ',')* (argument [',']| '*' test [',' '**' test] | |
|
41215
72da48d96257
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41205
diff
changeset
|
1847 | '**' test) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1848 argument: [test '='] test [gen_for] # Really [keyword '='] test |
| 35742 | 1849 */ |
| 1850 | |
| 1851 int i, nargs, nkeywords, ngens; | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1852 asdl_seq *args; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1853 asdl_seq *keywords; |
| 35742 | 1854 expr_ty vararg = NULL, kwarg = NULL; |
| 1855 | |
| 1856 REQ(n, arglist); | |
| 1857 | |
| 1858 nargs = 0; | |
| 1859 nkeywords = 0; | |
| 1860 ngens = 0; | |
| 1861 for (i = 0; i < NCH(n); i++) { | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1862 node *ch = CHILD(n, i); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1863 if (TYPE(ch) == argument) { |
|
72da48d96257
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41205
diff
changeset
|
1864 if (NCH(ch) == 1) |
|
72da48d96257
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41205
diff
changeset
|
1865 nargs++; |
|
72da48d96257
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41205
diff
changeset
|
1866 else if (TYPE(CHILD(ch, 1)) == gen_for) |
|
72da48d96257
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41205
diff
changeset
|
1867 ngens++; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1868 else |
|
72da48d96257
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41205
diff
changeset
|
1869 nkeywords++; |
|
72da48d96257
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41205
diff
changeset
|
1870 } |
| 35742 | 1871 } |
| 1872 if (ngens > 1 || (ngens && (nargs || nkeywords))) { | |
|
41215
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41205
diff
changeset
|
1873 ast_error(n, "Generator expression must be parenthesized " |
|
72da48d96257
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41205
diff
changeset
|
1874 "if not sole argument"); |
|
72da48d96257
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41205
diff
changeset
|
1875 return NULL; |
| 35742 | 1876 } |
| 1877 | |
| 1878 if (nargs + nkeywords + ngens > 255) { | |
| 1879 ast_error(n, "more than 255 arguments"); | |
| 1880 return NULL; | |
| 1881 } | |
| 1882 | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1883 args = asdl_seq_new(nargs + ngens, c->c_arena); |
| 35742 | 1884 if (!args) |
|
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41205
diff
changeset
|
1885 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1886 keywords = asdl_seq_new(nkeywords, c->c_arena); |
| 35742 | 1887 if (!keywords) |
|
41215
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41205
diff
changeset
|
1888 return NULL; |
| 35742 | 1889 nargs = 0; |
| 1890 nkeywords = 0; | |
| 1891 for (i = 0; i < NCH(n); i++) { | |
|
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41205
diff
changeset
|
1892 node *ch = CHILD(n, i); |
|
72da48d96257
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41205
diff
changeset
|
1893 if (TYPE(ch) == argument) { |
|
72da48d96257
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41205
diff
changeset
|
1894 expr_ty e; |
|
72da48d96257
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41205
diff
changeset
|
1895 if (NCH(ch) == 1) { |
|
72da48d96257
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diff
changeset
|
1896 if (nkeywords) { |
|
72da48d96257
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41205
diff
changeset
|
1897 ast_error(CHILD(ch, 0), |
|
72da48d96257
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41205
diff
changeset
|
1898 "non-keyword arg after keyword arg"); |
|
72da48d96257
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41205
diff
changeset
|
1899 return NULL; |
|
72da48d96257
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41205
diff
changeset
|
1900 } |
|
72da48d96257
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41205
diff
changeset
|
1901 e = ast_for_expr(c, CHILD(ch, 0)); |
|
72da48d96257
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41205
diff
changeset
|
1902 if (!e) |
|
72da48d96257
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41205
diff
changeset
|
1903 return NULL; |
|
72da48d96257
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41205
diff
changeset
|
1904 asdl_seq_SET(args, nargs++, e); |
|
72da48d96257
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41205
diff
changeset
|
1905 } |
|
72da48d96257
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41205
diff
changeset
|
1906 else if (TYPE(CHILD(ch, 1)) == gen_for) { |
|
72da48d96257
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41205
diff
changeset
|
1907 e = ast_for_genexp(c, ch); |
|
72da48d96257
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41205
diff
changeset
|
1908 if (!e) |
|
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41205
diff
changeset
|
1909 return NULL; |
|
72da48d96257
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41205
diff
changeset
|
1910 asdl_seq_SET(args, nargs++, e); |
|
72da48d96257
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diff
changeset
|
1911 } |
|
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|
1912 else { |
|
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1913 keyword_ty kw; |
|
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1914 identifier key; |
|
47860
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|
1915 int k; |
|
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#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1916 char *tmp; |
| 35742 | 1917 |
|
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1918 /* CHILD(ch, 0) is test, but must be an identifier? */ |
|
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1919 e = ast_for_expr(c, CHILD(ch, 0)); |
|
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1920 if (!e) |
|
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1921 return NULL; |
|
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1922 /* f(lambda x: x[0] = 3) ends up getting parsed with |
|
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|
1923 * LHS test = lambda x: x[0], and RHS test = 3. |
|
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1924 * SF bug 132313 points out that complaining about a keyword |
|
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1925 * then is very confusing. |
|
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|
1926 */ |
|
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|
1927 if (e->kind == Lambda_kind) { |
|
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1928 ast_error(CHILD(ch, 0), |
|
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|
1929 "lambda cannot contain assignment"); |
|
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1930 return NULL; |
|
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|
1931 } else if (e->kind != Name_kind) { |
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1932 ast_error(CHILD(ch, 0), "keyword can't be an expression"); |
|
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1933 return NULL; |
|
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|
1934 } |
|
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|
1935 key = e->v.Name.id; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
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47521
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|
1936 if (!forbidden_check(c, CHILD(ch, 0), PyBytes_AS_STRING(key))) |
|
41974
c8b0e3b8b456
Disallow function calls like foo(None=1).
Georg Brandl <georg@python.org>
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|
1937 return NULL; |
|
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|
1938 for (k = 0; k < nkeywords; k++) { |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1939 tmp = PyString_AS_STRING( |
|
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#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1940 ((keyword_ty)asdl_seq_GET(keywords, k))->arg); |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1941 if (!strcmp(tmp, PyString_AS_STRING(key))) { |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1942 ast_error(CHILD(ch, 0), "keyword argument repeated"); |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1943 return NULL; |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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parents:
47587
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|
1944 } |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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parents:
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|
1945 } |
|
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1946 e = ast_for_expr(c, CHILD(ch, 2)); |
|
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1947 if (!e) |
|
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|
1948 return NULL; |
|
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|
1949 kw = keyword(key, e, c->c_arena); |
|
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|
1950 if (!kw) |
|
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|
1951 return NULL; |
|
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|
1952 asdl_seq_SET(keywords, nkeywords++, kw); |
|
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|
1953 } |
|
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|
1954 } |
|
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|
1955 else if (TYPE(ch) == STAR) { |
|
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|
1956 vararg = ast_for_expr(c, CHILD(n, i+1)); |
|
45661
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents:
45447
diff
changeset
|
1957 if (!vararg) |
|
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
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|
1958 return NULL; |
|
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|
1959 i++; |
|
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|
1960 } |
|
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|
1961 else if (TYPE(ch) == DOUBLESTAR) { |
|
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|
1962 kwarg = ast_for_expr(c, CHILD(n, i+1)); |
|
45661
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Issue#2238: some syntax errors from *args or **kwargs expressions
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diff
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|
1963 if (!kwarg) |
|
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
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diff
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|
1964 return NULL; |
|
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|
1965 i++; |
|
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|
1966 } |
| 35742 | 1967 } |
| 1968 | |
|
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|
1969 return Call(func, args, keywords, vararg, kwarg, func->lineno, |
|
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|
1970 func->col_offset, c->c_arena); |
| 35742 | 1971 } |
| 1972 | |
| 1973 static expr_ty | |
|
35798
857f68fba275
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diff
changeset
|
1974 ast_for_testlist(struct compiling *c, const node* n) |
| 35742 | 1975 { |
|
35798
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Write a separate ast_for_testlist_gexp() function instead of overloading
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35771
diff
changeset
|
1976 /* testlist_gexp: test (',' test)* [','] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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|
1977 /* testlist: test (',' test)* [','] */ |
|
857f68fba275
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diff
changeset
|
1978 /* testlist_safe: test (',' test)+ [','] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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diff
changeset
|
1979 /* testlist1: test (',' test)* */ |
| 35742 | 1980 assert(NCH(n) > 0); |
|
35798
857f68fba275
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35771
diff
changeset
|
1981 if (TYPE(n) == testlist_gexp) { |
|
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|
1982 if (NCH(n) > 1) |
|
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diff
changeset
|
1983 assert(TYPE(CHILD(n, 1)) != gen_for); |
|
35798
857f68fba275
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35771
diff
changeset
|
1984 } |
|
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Write a separate ast_for_testlist_gexp() function instead of overloading
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35771
diff
changeset
|
1985 else { |
|
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diff
changeset
|
1986 assert(TYPE(n) == testlist || |
|
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diff
changeset
|
1987 TYPE(n) == testlist_safe || |
|
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diff
changeset
|
1988 TYPE(n) == testlist1); |
|
35798
857f68fba275
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diff
changeset
|
1989 } |
| 35742 | 1990 if (NCH(n) == 1) |
|
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diff
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|
1991 return ast_for_expr(c, CHILD(n, 0)); |
| 35742 | 1992 else { |
|
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changeset
|
1993 asdl_seq *tmp = seq_for_testlist(c, n); |
|
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diff
changeset
|
1994 if (!tmp) |
|
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diff
changeset
|
1995 return NULL; |
|
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changeset
|
1996 return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1997 } |
|
35798
857f68fba275
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diff
changeset
|
1998 } |
|
857f68fba275
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diff
changeset
|
1999 |
|
857f68fba275
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diff
changeset
|
2000 static expr_ty |
|
857f68fba275
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35771
diff
changeset
|
2001 ast_for_testlist_gexp(struct compiling *c, const node* n) |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
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diff
changeset
|
2002 { |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2003 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2004 /* argument: test [ gen_for ] */ |
|
857f68fba275
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diff
changeset
|
2005 assert(TYPE(n) == testlist_gexp || TYPE(n) == argument); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2006 if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == gen_for) |
|
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changeset
|
2007 return ast_for_genexp(c, n); |
|
36072
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Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2008 return ast_for_testlist(c, n); |
|
35798
857f68fba275
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parents:
35771
diff
changeset
|
2009 } |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2010 |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
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diff
changeset
|
2011 /* like ast_for_testlist() but returns a sequence */ |
|
857f68fba275
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parents:
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diff
changeset
|
2012 static asdl_seq* |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
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diff
changeset
|
2013 ast_for_class_bases(struct compiling *c, const node* n) |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2014 { |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2015 /* testlist: test (',' test)* [','] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2016 assert(NCH(n) > 0); |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2017 REQ(n, testlist); |
|
857f68fba275
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parents:
35771
diff
changeset
|
2018 if (NCH(n) == 1) { |
|
41215
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diff
changeset
|
2019 expr_ty base; |
|
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diff
changeset
|
2020 asdl_seq *bases = asdl_seq_new(1, c->c_arena); |
|
72da48d96257
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diff
changeset
|
2021 if (!bases) |
|
72da48d96257
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diff
changeset
|
2022 return NULL; |
|
72da48d96257
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41205
diff
changeset
|
2023 base = ast_for_expr(c, CHILD(n, 0)); |
|
72da48d96257
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diff
changeset
|
2024 if (!base) |
|
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diff
changeset
|
2025 return NULL; |
|
72da48d96257
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diff
changeset
|
2026 asdl_seq_SET(bases, 0, base); |
|
72da48d96257
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diff
changeset
|
2027 return bases; |
|
35798
857f68fba275
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2028 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2029 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2030 return seq_for_testlist(c, n); |
| 35742 | 2031 } |
| 2032 | |
| 2033 static stmt_ty | |
| 2034 ast_for_expr_stmt(struct compiling *c, const node *n) | |
| 2035 { | |
| 2036 REQ(n, expr_stmt); | |
| 2037 /* expr_stmt: testlist (augassign (yield_expr|testlist) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2038 | ('=' (yield_expr|testlist))*) |
| 35742 | 2039 testlist: test (',' test)* [','] |
| 2040 augassign: '+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^=' | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2041 | '<<=' | '>>=' | '**=' | '//=' |
| 35742 | 2042 test: ... here starts the operator precendence dance |
| 2043 */ | |
| 2044 | |
| 2045 if (NCH(n) == 1) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2046 expr_ty e = ast_for_testlist(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2047 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2048 return NULL; |
| 35742 | 2049 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2050 return Expr(e, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2051 } |
| 2052 else if (TYPE(CHILD(n, 1)) == augassign) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2053 expr_ty expr1, expr2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2054 operator_ty newoperator; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2055 node *ch = CHILD(n, 0); |
| 35742 | 2056 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2057 expr1 = ast_for_testlist(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2058 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2059 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2060 /* TODO(nas): Remove duplicated error checks (set_context does it) */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2061 switch (expr1->kind) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2062 case GeneratorExp_kind: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2063 ast_error(ch, "augmented assignment to generator " |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2064 "expression not possible"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2065 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2066 case Yield_kind: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2067 ast_error(ch, "augmented assignment to yield " |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2068 "expression not possible"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2069 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2070 case Name_kind: { |
|
47294
4fe192d48960
Renamed PyString to PyBytes
Christian Heimes <christian@cheimes.de>
parents:
46642
diff
changeset
|
2071 const char *var_name = PyBytes_AS_STRING(expr1->v.Name.id); |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
2072 if ((var_name[0] == 'N' || var_name[0] == 'T' || var_name[0] == 'F') && |
|
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
2073 !forbidden_check(c, ch, var_name)) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2074 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2075 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2076 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2077 case Attribute_kind: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2078 case Subscript_kind: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2079 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2080 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2081 ast_error(ch, "illegal expression for augmented " |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2082 "assignment"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2083 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2084 } |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
2085 if(!set_context(c, expr1, Store, ch)) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2086 return NULL; |
| 35742 | 2087 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2088 ch = CHILD(n, 2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2089 if (TYPE(ch) == testlist) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2090 expr2 = ast_for_testlist(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2091 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2092 expr2 = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2093 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2094 return NULL; |
| 35742 | 2095 |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
2096 newoperator = ast_for_augassign(c, CHILD(n, 1)); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2097 if (!newoperator) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2098 return NULL; |
| 35742 | 2099 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2100 return AugAssign(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2101 c->c_arena); |
| 35742 | 2102 } |
| 2103 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2104 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2105 asdl_seq *targets; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2106 node *value; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2107 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2108 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2109 /* a normal assignment */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2110 REQ(CHILD(n, 1), EQUAL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2111 targets = asdl_seq_new(NCH(n) / 2, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2112 if (!targets) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2113 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2114 for (i = 0; i < NCH(n) - 2; i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2115 expr_ty e; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2116 node *ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2117 if (TYPE(ch) == yield_expr) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2118 ast_error(ch, "assignment to yield expression not possible"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2119 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2120 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2121 e = ast_for_testlist(c, ch); |
| 35742 | 2122 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2123 /* set context to assign */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2124 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2125 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2126 |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
2127 if (!set_context(c, e, Store, CHILD(n, i))) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2128 return NULL; |
| 35742 | 2129 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2130 asdl_seq_SET(targets, i / 2, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2131 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2132 value = CHILD(n, NCH(n) - 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2133 if (TYPE(value) == testlist) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2134 expression = ast_for_testlist(c, value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2135 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2136 expression = ast_for_expr(c, value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2137 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2138 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2139 return Assign(targets, expression, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2140 c->c_arena); |
| 35742 | 2141 } |
| 2142 } | |
| 2143 | |
| 2144 static stmt_ty | |
| 2145 ast_for_print_stmt(struct compiling *c, const node *n) | |
| 2146 { | |
| 2147 /* print_stmt: 'print' ( [ test (',' test)* [','] ] | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2148 | '>>' test [ (',' test)+ [','] ] ) |
| 35742 | 2149 */ |
| 2150 expr_ty dest = NULL, expression; | |
| 2151 asdl_seq *seq; | |
| 2152 bool nl; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2153 int i, j, start = 1; |
| 35742 | 2154 |
| 2155 REQ(n, print_stmt); | |
| 2156 if (NCH(n) >= 2 && TYPE(CHILD(n, 1)) == RIGHTSHIFT) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2157 dest = ast_for_expr(c, CHILD(n, 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2158 if (!dest) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2159 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2160 start = 4; |
| 35742 | 2161 } |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2162 seq = asdl_seq_new((NCH(n) + 1 - start) / 2, c->c_arena); |
| 35742 | 2163 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2164 return NULL; |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2165 for (i = start, j = 0; i < NCH(n); i += 2, ++j) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2166 expression = ast_for_expr(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2167 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2168 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2169 asdl_seq_SET(seq, j, expression); |
| 35742 | 2170 } |
| 2171 nl = (TYPE(CHILD(n, NCH(n) - 1)) == COMMA) ? false : true; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2172 return Print(dest, seq, nl, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2173 } |
| 2174 | |
| 2175 static asdl_seq * | |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
2176 ast_for_exprlist(struct compiling *c, const node *n, expr_context_ty context) |
| 35742 | 2177 { |
| 2178 asdl_seq *seq; | |
| 2179 int i; | |
| 2180 expr_ty e; | |
| 2181 | |
| 2182 REQ(n, exprlist); | |
| 2183 | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2184 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 2185 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2186 return NULL; |
| 35742 | 2187 for (i = 0; i < NCH(n); i += 2) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2188 e = ast_for_expr(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2189 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2190 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2191 asdl_seq_SET(seq, i / 2, e); |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
2192 if (context && !set_context(c, e, context, CHILD(n, i))) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2193 return NULL; |
| 35742 | 2194 } |
| 2195 return seq; | |
| 2196 } | |
| 2197 | |
| 2198 static stmt_ty | |
| 2199 ast_for_del_stmt(struct compiling *c, const node *n) | |
| 2200 { | |
| 2201 asdl_seq *expr_list; | |
| 2202 | |
| 2203 /* del_stmt: 'del' exprlist */ | |
| 2204 REQ(n, del_stmt); | |
| 2205 | |
| 2206 expr_list = ast_for_exprlist(c, CHILD(n, 1), Del); | |
| 2207 if (!expr_list) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2208 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2209 return Delete(expr_list, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2210 } |
| 2211 | |
| 2212 static stmt_ty | |
| 2213 ast_for_flow_stmt(struct compiling *c, const node *n) | |
| 2214 { | |
| 2215 /* | |
| 2216 flow_stmt: break_stmt | continue_stmt | return_stmt | raise_stmt | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2217 | yield_stmt |
| 35742 | 2218 break_stmt: 'break' |
| 2219 continue_stmt: 'continue' | |
| 2220 return_stmt: 'return' [testlist] | |
| 2221 yield_stmt: yield_expr | |
| 2222 yield_expr: 'yield' testlist | |
| 2223 raise_stmt: 'raise' [test [',' test [',' test]]] | |
| 2224 */ | |
| 2225 node *ch; | |
| 2226 | |
| 2227 REQ(n, flow_stmt); | |
| 2228 ch = CHILD(n, 0); | |
| 2229 switch (TYPE(ch)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2230 case break_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2231 return Break(LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2232 case continue_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2233 return Continue(LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2234 case yield_stmt: { /* will reduce to yield_expr */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2235 expr_ty exp = ast_for_expr(c, CHILD(ch, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2236 if (!exp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2237 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2238 return Expr(exp, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2239 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2240 case return_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2241 if (NCH(ch) == 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2242 return Return(NULL, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2243 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2244 expr_ty expression = ast_for_testlist(c, CHILD(ch, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2245 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2246 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2247 return Return(expression, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2248 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2249 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2250 case raise_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2251 if (NCH(ch) == 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2252 return Raise(NULL, NULL, NULL, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2253 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2254 else if (NCH(ch) == 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2255 expr_ty expression = ast_for_expr(c, CHILD(ch, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2256 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2257 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2258 return Raise(expression, NULL, NULL, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2259 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2260 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2261 else if (NCH(ch) == 4) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2262 expr_ty expr1, expr2; |
| 35742 | 2263 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2264 expr1 = ast_for_expr(c, CHILD(ch, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2265 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2266 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2267 expr2 = ast_for_expr(c, CHILD(ch, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2268 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2269 return NULL; |
| 35742 | 2270 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2271 return Raise(expr1, expr2, NULL, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2272 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2273 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2274 else if (NCH(ch) == 6) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2275 expr_ty expr1, expr2, expr3; |
| 35742 | 2276 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2277 expr1 = ast_for_expr(c, CHILD(ch, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2278 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2279 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2280 expr2 = ast_for_expr(c, CHILD(ch, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2281 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2282 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2283 expr3 = ast_for_expr(c, CHILD(ch, 5)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2284 if (!expr3) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2285 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2286 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2287 return Raise(expr1, expr2, expr3, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2288 c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2289 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2290 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2291 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2292 "unexpected flow_stmt: %d", TYPE(ch)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2293 return NULL; |
| 35742 | 2294 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2295 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2296 PyErr_SetString(PyExc_SystemError, "unhandled flow statement"); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2297 return NULL; |
| 35742 | 2298 } |
| 2299 | |
| 2300 static alias_ty | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2301 alias_for_import_name(struct compiling *c, const node *n) |
| 35742 | 2302 { |
| 2303 /* | |
|
36742
658f8ff2a442
Make 'as' an actual keyword when with's future statement is used. Not
Thomas Wouters <thomas@python.org>
parents:
36718
diff
changeset
|
2304 import_as_name: NAME ['as' NAME] |
|
658f8ff2a442
Make 'as' an actual keyword when with's future statement is used. Not
Thomas Wouters <thomas@python.org>
parents:
36718
diff
changeset
|
2305 dotted_as_name: dotted_name ['as' NAME] |
| 35742 | 2306 dotted_name: NAME ('.' NAME)* |
| 2307 */ | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2308 PyObject *str; |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2309 |
| 35742 | 2310 loop: |
| 2311 switch (TYPE(n)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2312 case import_as_name: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2313 str = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2314 if (NCH(n) == 3) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2315 str = NEW_IDENTIFIER(CHILD(n, 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2316 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2317 return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2318 case dotted_as_name: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2319 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2320 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
2321 goto loop; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2322 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2323 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2324 alias_ty a = alias_for_import_name(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2325 if (!a) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2326 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2327 assert(!a->asname); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2328 a->asname = NEW_IDENTIFIER(CHILD(n, 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2329 return a; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2330 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2331 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2332 case dotted_name: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2333 if (NCH(n) == 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2334 return alias(NEW_IDENTIFIER(CHILD(n, 0)), NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2335 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2336 /* Create a string of the form "a.b.c" */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2337 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2338 size_t len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2339 char *s; |
| 35742 | 2340 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2341 len = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2342 for (i = 0; i < NCH(n); i += 2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2343 /* length of string plus one for the dot */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2344 len += strlen(STR(CHILD(n, i))) + 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2345 len--; /* the last name doesn't have a dot */ |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
2346 str = PyString_FromStringAndSize(NULL, len); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2347 if (!str) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2348 return NULL; |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
2349 s = PyString_AS_STRING(str); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2350 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2351 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2352 for (i = 0; i < NCH(n); i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2353 char *sch = STR(CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2354 strcpy(s, STR(CHILD(n, i))); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2355 s += strlen(sch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2356 *s++ = '.'; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2357 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2358 --s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2359 *s = '\0'; |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
2360 PyString_InternInPlace(&str); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2361 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2362 return alias(str, NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2363 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2364 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2365 case STAR: |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
2366 str = PyString_InternFromString("*"); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2367 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2368 return alias(str, NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2369 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2370 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2371 "unexpected import name: %d", TYPE(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2372 return NULL; |
| 35742 | 2373 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2374 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2375 PyErr_SetString(PyExc_SystemError, "unhandled import name condition"); |
| 35742 | 2376 return NULL; |
| 2377 } | |
| 2378 | |
| 2379 static stmt_ty | |
| 2380 ast_for_import_stmt(struct compiling *c, const node *n) | |
| 2381 { | |
| 2382 /* | |
| 2383 import_stmt: import_name | import_from | |
| 2384 import_name: 'import' dotted_as_names | |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2385 import_from: 'from' ('.'* dotted_name | '.') 'import' |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2386 ('*' | '(' import_as_names ')' | import_as_names) |
| 35742 | 2387 */ |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2388 int lineno; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2389 int col_offset; |
| 35742 | 2390 int i; |
| 2391 asdl_seq *aliases; | |
| 2392 | |
| 2393 REQ(n, import_stmt); | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2394 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2395 col_offset = n->n_col_offset; |
| 35742 | 2396 n = CHILD(n, 0); |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2397 if (TYPE(n) == import_name) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2398 n = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2399 REQ(n, dotted_as_names); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2400 aliases = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2401 if (!aliases) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2402 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2403 for (i = 0; i < NCH(n); i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2404 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2405 if (!import_alias) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2406 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2407 asdl_seq_SET(aliases, i / 2, import_alias); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2408 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2409 return Import(aliases, lineno, col_offset, c->c_arena); |
| 35742 | 2410 } |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2411 else if (TYPE(n) == import_from) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2412 int n_children; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2413 int idx, ndots = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2414 alias_ty mod = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2415 identifier modname; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2416 |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2417 /* Count the number of dots (for relative imports) and check for the |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2418 optional module name */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2419 for (idx = 1; idx < NCH(n); idx++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2420 if (TYPE(CHILD(n, idx)) == dotted_name) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2421 mod = alias_for_import_name(c, CHILD(n, idx)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2422 idx++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2423 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2424 } else if (TYPE(CHILD(n, idx)) != DOT) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2425 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2426 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2427 ndots++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2428 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2429 idx++; /* skip over the 'import' keyword */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2430 switch (TYPE(CHILD(n, idx))) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2431 case STAR: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2432 /* from ... import * */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2433 n = CHILD(n, idx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2434 n_children = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2435 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2436 case LPAR: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2437 /* from ... import (x, y, z) */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2438 n = CHILD(n, idx + 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2439 n_children = NCH(n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2440 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2441 case import_as_names: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2442 /* from ... import x, y, z */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2443 n = CHILD(n, idx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2444 n_children = NCH(n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2445 if (n_children % 2 == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2446 ast_error(n, "trailing comma not allowed without" |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2447 " surrounding parentheses"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2448 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2449 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2450 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2451 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2452 ast_error(n, "Unexpected node-type in from-import"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2453 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2454 } |
| 35742 | 2455 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2456 aliases = asdl_seq_new((n_children + 1) / 2, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2457 if (!aliases) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2458 return NULL; |
| 35742 | 2459 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2460 /* handle "from ... import *" special b/c there's no children */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2461 if (TYPE(n) == STAR) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2462 alias_ty import_alias = alias_for_import_name(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2463 if (!import_alias) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2464 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2465 asdl_seq_SET(aliases, 0, import_alias); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2466 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2467 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2468 for (i = 0; i < NCH(n); i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2469 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2470 if (!import_alias) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2471 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2472 asdl_seq_SET(aliases, i / 2, import_alias); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2473 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2474 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2475 if (mod != NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2476 modname = mod->name; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2477 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2478 modname = new_identifier("", c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2479 return ImportFrom(modname, aliases, ndots, lineno, col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2480 c->c_arena); |
| 35742 | 2481 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2482 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2483 "unknown import statement: starts with command '%s'", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2484 STR(CHILD(n, 0))); |
| 35742 | 2485 return NULL; |
| 2486 } | |
| 2487 | |
| 2488 static stmt_ty | |
| 2489 ast_for_global_stmt(struct compiling *c, const node *n) | |
| 2490 { | |
| 2491 /* global_stmt: 'global' NAME (',' NAME)* */ | |
| 2492 identifier name; | |
| 2493 asdl_seq *s; | |
| 2494 int i; | |
| 2495 | |
| 2496 REQ(n, global_stmt); | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2497 s = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 2498 if (!s) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2499 return NULL; |
| 35742 | 2500 for (i = 1; i < NCH(n); i += 2) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2501 name = NEW_IDENTIFIER(CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2502 if (!name) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2503 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2504 asdl_seq_SET(s, i / 2, name); |
| 35742 | 2505 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2506 return Global(s, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2507 } |
| 2508 | |
| 2509 static stmt_ty | |
| 2510 ast_for_exec_stmt(struct compiling *c, const node *n) | |
| 2511 { | |
| 2512 expr_ty expr1, globals = NULL, locals = NULL; | |
| 2513 int n_children = NCH(n); | |
| 2514 if (n_children != 2 && n_children != 4 && n_children != 6) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2515 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2516 "poorly formed 'exec' statement: %d parts to statement", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2517 n_children); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2518 return NULL; |
| 35742 | 2519 } |
| 2520 | |
| 2521 /* exec_stmt: 'exec' expr ['in' test [',' test]] */ | |
| 2522 REQ(n, exec_stmt); | |
| 2523 expr1 = ast_for_expr(c, CHILD(n, 1)); | |
| 2524 if (!expr1) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2525 return NULL; |
| 35742 | 2526 if (n_children >= 4) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2527 globals = ast_for_expr(c, CHILD(n, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2528 if (!globals) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2529 return NULL; |
| 35742 | 2530 } |
| 2531 if (n_children == 6) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2532 locals = ast_for_expr(c, CHILD(n, 5)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2533 if (!locals) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2534 return NULL; |
| 35742 | 2535 } |
| 2536 | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2537 return Exec(expr1, globals, locals, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2538 c->c_arena); |
| 35742 | 2539 } |
| 2540 | |
| 2541 static stmt_ty | |
| 2542 ast_for_assert_stmt(struct compiling *c, const node *n) | |
| 2543 { | |
| 2544 /* assert_stmt: 'assert' test [',' test] */ | |
| 2545 REQ(n, assert_stmt); | |
| 2546 if (NCH(n) == 2) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2547 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2548 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2549 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2550 return Assert(expression, NULL, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2551 c->c_arena); |
| 35742 | 2552 } |
| 2553 else if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2554 expr_ty expr1, expr2; |
| 35742 | 2555 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2556 expr1 = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2557 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2558 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2559 expr2 = ast_for_expr(c, CHILD(n, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2560 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2561 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2562 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2563 return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2564 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2565 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2566 "improper number of parts to 'assert' statement: %d", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2567 NCH(n)); |
| 35742 | 2568 return NULL; |
| 2569 } | |
| 2570 | |
| 2571 static asdl_seq * | |
| 2572 ast_for_suite(struct compiling *c, const node *n) | |
| 2573 { | |
| 2574 /* suite: simple_stmt | NEWLINE INDENT stmt+ DEDENT */ | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2575 asdl_seq *seq; |
| 35742 | 2576 stmt_ty s; |
| 2577 int i, total, num, end, pos = 0; | |
| 2578 node *ch; | |
| 2579 | |
| 2580 REQ(n, suite); | |
| 2581 | |
| 2582 total = num_stmts(n); | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2583 seq = asdl_seq_new(total, c->c_arena); |
| 35742 | 2584 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2585 return NULL; |
| 35742 | 2586 if (TYPE(CHILD(n, 0)) == simple_stmt) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2587 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2588 /* simple_stmt always ends with a NEWLINE, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2589 and may have a trailing SEMI |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2590 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2591 end = NCH(n) - 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2592 if (TYPE(CHILD(n, end - 1)) == SEMI) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2593 end--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2594 /* loop by 2 to skip semi-colons */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2595 for (i = 0; i < end; i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2596 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2597 s = ast_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2598 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2599 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2600 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2601 } |
| 35742 | 2602 } |
| 2603 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2604 for (i = 2; i < (NCH(n) - 1); i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2605 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2606 REQ(ch, stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2607 num = num_stmts(ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2608 if (num == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2609 /* small_stmt or compound_stmt with only one child */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2610 s = ast_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2611 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2612 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2613 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2614 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2615 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2616 int j; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2617 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2618 REQ(ch, simple_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2619 for (j = 0; j < NCH(ch); j += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2620 /* statement terminates with a semi-colon ';' */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2621 if (NCH(CHILD(ch, j)) == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2622 assert((j + 1) == NCH(ch)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2623 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2624 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2625 s = ast_for_stmt(c, CHILD(ch, j)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2626 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2627 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2628 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2629 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2630 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2631 } |
| 35742 | 2632 } |
| 2633 assert(pos == seq->size); | |
| 2634 return seq; | |
| 2635 } | |
| 2636 | |
| 2637 static stmt_ty | |
| 2638 ast_for_if_stmt(struct compiling *c, const node *n) | |
| 2639 { | |
| 2640 /* if_stmt: 'if' test ':' suite ('elif' test ':' suite)* | |
| 2641 ['else' ':' suite] | |
| 2642 */ | |
| 2643 char *s; | |
| 2644 | |
| 2645 REQ(n, if_stmt); | |
| 2646 | |
| 2647 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2648 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2649 asdl_seq *suite_seq; |
| 35742 | 2650 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2651 expression = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2652 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2653 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2654 suite_seq = ast_for_suite(c, CHILD(n, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2655 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2656 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2657 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2658 return If(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2659 c->c_arena); |
| 35742 | 2660 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2661 |
| 35742 | 2662 s = STR(CHILD(n, 4)); |
| 2663 /* s[2], the third character in the string, will be | |
| 2664 's' for el_s_e, or | |
| 2665 'i' for el_i_f | |
| 2666 */ | |
| 2667 if (s[2] == 's') { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2668 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2669 asdl_seq *seq1, *seq2; |
| 35742 | 2670 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2671 expression = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2672 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2673 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2674 seq1 = ast_for_suite(c, CHILD(n, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2675 if (!seq1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2676 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2677 seq2 = ast_for_suite(c, CHILD(n, 6)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2678 if (!seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2679 return NULL; |
| 35742 | 2680 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2681 return If(expression, seq1, seq2, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2682 c->c_arena); |
| 35742 | 2683 } |
| 2684 else if (s[2] == 'i') { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2685 int i, n_elif, has_else = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2686 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2687 asdl_seq *suite_seq; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2688 asdl_seq *orelse = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2689 n_elif = NCH(n) - 4; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2690 /* must reference the child n_elif+1 since 'else' token is third, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2691 not fourth, child from the end. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2692 if (TYPE(CHILD(n, (n_elif + 1))) == NAME |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2693 && STR(CHILD(n, (n_elif + 1)))[2] == 's') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2694 has_else = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2695 n_elif -= 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2696 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2697 n_elif /= 4; |
| 35742 | 2698 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2699 if (has_else) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2700 asdl_seq *suite_seq2; |
| 35742 | 2701 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2702 orelse = asdl_seq_new(1, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2703 if (!orelse) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2704 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2705 expression = ast_for_expr(c, CHILD(n, NCH(n) - 6)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2706 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2707 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2708 suite_seq = ast_for_suite(c, CHILD(n, NCH(n) - 4)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2709 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2710 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2711 suite_seq2 = ast_for_suite(c, CHILD(n, NCH(n) - 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2712 if (!suite_seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2713 return NULL; |
| 35742 | 2714 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2715 asdl_seq_SET(orelse, 0, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2716 If(expression, suite_seq, suite_seq2, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2717 LINENO(CHILD(n, NCH(n) - 6)), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2718 CHILD(n, NCH(n) - 6)->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2719 c->c_arena)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2720 /* the just-created orelse handled the last elif */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2721 n_elif--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2722 } |
| 35742 | 2723 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2724 for (i = 0; i < n_elif; i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2725 int off = 5 + (n_elif - i - 1) * 4; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2726 asdl_seq *newobj = asdl_seq_new(1, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2727 if (!newobj) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2728 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2729 expression = ast_for_expr(c, CHILD(n, off)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2730 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2731 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2732 suite_seq = ast_for_suite(c, CHILD(n, off + 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2733 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2734 return NULL; |
| 35742 | 2735 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2736 asdl_seq_SET(newobj, 0, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2737 If(expression, suite_seq, orelse, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2738 LINENO(CHILD(n, off)), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2739 CHILD(n, off)->n_col_offset, c->c_arena)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2740 orelse = newobj; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2741 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2742 expression = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2743 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2744 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2745 suite_seq = ast_for_suite(c, CHILD(n, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2746 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2747 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2748 return If(expression, suite_seq, orelse, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2749 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2750 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2751 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2752 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2753 "unexpected token in 'if' statement: %s", s); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2754 return NULL; |
| 35742 | 2755 } |
| 2756 | |
| 2757 static stmt_ty | |
| 2758 ast_for_while_stmt(struct compiling *c, const node *n) | |
| 2759 { | |
| 2760 /* while_stmt: 'while' test ':' suite ['else' ':' suite] */ | |
| 2761 REQ(n, while_stmt); | |
| 2762 | |
| 2763 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2764 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2765 asdl_seq *suite_seq; |
| 35742 | 2766 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2767 expression = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2768 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2769 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2770 suite_seq = ast_for_suite(c, CHILD(n, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2771 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2772 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2773 return While(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2774 c->c_arena); |
| 35742 | 2775 } |
| 2776 else if (NCH(n) == 7) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2777 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2778 asdl_seq *seq1, *seq2; |
| 35742 | 2779 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2780 expression = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2781 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2782 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2783 seq1 = ast_for_suite(c, CHILD(n, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2784 if (!seq1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2785 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2786 seq2 = ast_for_suite(c, CHILD(n, 6)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2787 if (!seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2788 return NULL; |
| 35742 | 2789 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2790 return While(expression, seq1, seq2, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2791 c->c_arena); |
| 35742 | 2792 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2793 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2794 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2795 "wrong number of tokens for 'while' statement: %d", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2796 NCH(n)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2797 return NULL; |
| 35742 | 2798 } |
| 2799 | |
| 2800 static stmt_ty | |
| 2801 ast_for_for_stmt(struct compiling *c, const node *n) | |
| 2802 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2803 asdl_seq *_target, *seq = NULL, *suite_seq; |
| 35742 | 2804 expr_ty expression; |
| 2805 expr_ty target; | |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2806 const node *node_target; |
| 35742 | 2807 /* for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] */ |
| 2808 REQ(n, for_stmt); | |
| 2809 | |
| 2810 if (NCH(n) == 9) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2811 seq = ast_for_suite(c, CHILD(n, 8)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2812 if (!seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2813 return NULL; |
| 35742 | 2814 } |
| 2815 | |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2816 node_target = CHILD(n, 1); |
|
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2817 _target = ast_for_exprlist(c, node_target, Store); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2818 if (!_target) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2819 return NULL; |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2820 /* Check the # of children rather than the length of _target, since |
|
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2821 for x, in ... has 1 element in _target, but still requires a Tuple. */ |
|
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2822 if (NCH(node_target) == 1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2823 target = (expr_ty)asdl_seq_GET(_target, 0); |
| 35742 | 2824 else |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2825 target = Tuple(_target, Store, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2826 |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2827 expression = ast_for_testlist(c, CHILD(n, 3)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2828 if (!expression) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2829 return NULL; |
| 35742 | 2830 suite_seq = ast_for_suite(c, CHILD(n, 5)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2831 if (!suite_seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2832 return NULL; |
| 35742 | 2833 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2834 return For(target, expression, suite_seq, seq, LINENO(n), n->n_col_offset, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2835 c->c_arena); |
| 35742 | 2836 } |
| 2837 | |
| 2838 static excepthandler_ty | |
| 2839 ast_for_except_clause(struct compiling *c, const node *exc, node *body) | |
| 2840 { | |
|
41773
f19e631be101
Backport PEP 3110's new 'except' syntax to 2.6.
Collin Winter <collinw@gmail.com>
parents:
41579
diff
changeset
|
2841 /* except_clause: 'except' [test [(',' | 'as') test]] */ |
| 35742 | 2842 REQ(exc, except_clause); |
| 2843 REQ(body, suite); | |
| 2844 | |
| 2845 if (NCH(exc) == 1) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2846 asdl_seq *suite_seq = ast_for_suite(c, body); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2847 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2848 return NULL; |
| 35742 | 2849 |
|
46200
2ff88ae9850c
Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum.
Georg Brandl <georg@python.org>
parents:
46118
diff
changeset
|
2850 return ExceptHandler(NULL, NULL, suite_seq, LINENO(exc), |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2851 exc->n_col_offset, c->c_arena); |
| 35742 | 2852 } |
| 2853 else if (NCH(exc) == 2) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2854 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2855 asdl_seq *suite_seq; |
| 35742 | 2856 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2857 expression = ast_for_expr(c, CHILD(exc, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2858 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2859 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2860 suite_seq = ast_for_suite(c, body); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2861 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2862 return NULL; |
| 35742 | 2863 |
|
46200
2ff88ae9850c
Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum.
Georg Brandl <georg@python.org>
parents:
46118
diff
changeset
|
2864 return ExceptHandler(expression, NULL, suite_seq, LINENO(exc), |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2865 exc->n_col_offset, c->c_arena); |
| 35742 | 2866 } |
| 2867 else if (NCH(exc) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2868 asdl_seq *suite_seq; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2869 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2870 expr_ty e = ast_for_expr(c, CHILD(exc, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2871 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2872 return NULL; |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
2873 if (!set_context(c, e, Store, CHILD(exc, 3))) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2874 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2875 expression = ast_for_expr(c, CHILD(exc, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2876 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2877 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2878 suite_seq = ast_for_suite(c, body); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2879 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2880 return NULL; |
| 35742 | 2881 |
|
46200
2ff88ae9850c
Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum.
Georg Brandl <georg@python.org>
parents:
46118
diff
changeset
|
2882 return ExceptHandler(expression, e, suite_seq, LINENO(exc), |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2883 exc->n_col_offset, c->c_arena); |
| 35742 | 2884 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2885 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2886 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2887 "wrong number of children for 'except' clause: %d", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2888 NCH(exc)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2889 return NULL; |
| 35742 | 2890 } |
| 2891 | |
| 2892 static stmt_ty | |
| 2893 ast_for_try_stmt(struct compiling *c, const node *n) | |
| 2894 { | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2895 const int nch = NCH(n); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2896 int n_except = (nch - 3)/3; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2897 asdl_seq *body, *orelse = NULL, *finally = NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2898 |
| 35742 | 2899 REQ(n, try_stmt); |
| 2900 | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2901 body = ast_for_suite(c, CHILD(n, 2)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2902 if (body == NULL) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2903 return NULL; |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2904 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2905 if (TYPE(CHILD(n, nch - 3)) == NAME) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2906 if (strcmp(STR(CHILD(n, nch - 3)), "finally") == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2907 if (nch >= 9 && TYPE(CHILD(n, nch - 6)) == NAME) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2908 /* we can assume it's an "else", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2909 because nch >= 9 for try-else-finally and |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2910 it would otherwise have a type of except_clause */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2911 orelse = ast_for_suite(c, CHILD(n, nch - 4)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2912 if (orelse == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2913 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2914 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2915 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2916 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2917 finally = ast_for_suite(c, CHILD(n, nch - 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2918 if (finally == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2919 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2920 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2921 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2922 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2923 /* we can assume it's an "else", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2924 otherwise it would have a type of except_clause */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2925 orelse = ast_for_suite(c, CHILD(n, nch - 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2926 if (orelse == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2927 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2928 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2929 } |
| 35742 | 2930 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2931 else if (TYPE(CHILD(n, nch - 3)) != except_clause) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2932 ast_error(n, "malformed 'try' statement"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2933 return NULL; |
| 35742 | 2934 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2935 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2936 if (n_except > 0) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2937 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2938 stmt_ty except_st; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2939 /* process except statements to create a try ... except */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2940 asdl_seq *handlers = asdl_seq_new(n_except, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2941 if (handlers == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2942 return NULL; |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2943 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2944 for (i = 0; i < n_except; i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2945 excepthandler_ty e = ast_for_except_clause(c, CHILD(n, 3 + i * 3), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2946 CHILD(n, 5 + i * 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2947 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2948 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2949 asdl_seq_SET(handlers, i, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2950 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2951 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2952 except_st = TryExcept(body, handlers, orelse, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2953 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2954 if (!finally) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2955 return except_st; |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2956 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2957 /* if a 'finally' is present too, we nest the TryExcept within a |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2958 TryFinally to emulate try ... except ... finally */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2959 body = asdl_seq_new(1, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2960 if (body == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2961 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2962 asdl_seq_SET(body, 0, except_st); |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2963 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2964 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2965 /* must be a try ... finally (except clauses are in body, if any exist) */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2966 assert(finally != NULL); |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2967 return TryFinally(body, finally, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2968 } |
| 2969 | |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2970 static expr_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2971 ast_for_with_var(struct compiling *c, const node *n) |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2972 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2973 REQ(n, with_var); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2974 return ast_for_expr(c, CHILD(n, 1)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2975 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2976 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2977 /* with_stmt: 'with' test [ with_var ] ':' suite */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2978 static stmt_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2979 ast_for_with_stmt(struct compiling *c, const node *n) |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2980 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2981 expr_ty context_expr, optional_vars = NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2982 int suite_index = 3; /* skip 'with', test, and ':' */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2983 asdl_seq *suite_seq; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2984 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2985 assert(TYPE(n) == with_stmt); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2986 context_expr = ast_for_expr(c, CHILD(n, 1)); |
|
41205
b43a52f71696
Patch #1642547: Fix an error/crash when encountering syntax errors in complex if statements.
Collin Winter <collinw@gmail.com>
parents:
40972
diff
changeset
|
2987 if (!context_expr) |
|
b43a52f71696
Patch #1642547: Fix an error/crash when encountering syntax errors in complex if statements.
Collin Winter <collinw@gmail.com>
parents:
40972
diff
changeset
|
2988 return NULL; |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2989 if (TYPE(CHILD(n, 2)) == with_var) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2990 optional_vars = ast_for_with_var(c, CHILD(n, 2)); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2991 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2992 if (!optional_vars) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2993 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2994 } |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
2995 if (!set_context(c, optional_vars, Store, n)) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2996 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2997 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2998 suite_index = 4; |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2999 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3000 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3001 suite_seq = ast_for_suite(c, CHILD(n, suite_index)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3002 if (!suite_seq) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3003 return NULL; |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3004 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
3005 return With(context_expr, optional_vars, suite_seq, LINENO(n), |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3006 n->n_col_offset, c->c_arena); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3007 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3008 |
| 35742 | 3009 static stmt_ty |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3010 ast_for_classdef(struct compiling *c, const node *n, asdl_seq *decorator_seq) |
| 35742 | 3011 { |
| 3012 /* classdef: 'class' NAME ['(' testlist ')'] ':' suite */ | |
| 3013 asdl_seq *bases, *s; | |
| 3014 | |
| 3015 REQ(n, classdef); | |
| 3016 | |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
3017 if (!forbidden_check(c, n, STR(CHILD(n, 1)))) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3018 return NULL; |
| 35742 | 3019 |
| 3020 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3021 s = ast_for_suite(c, CHILD(n, 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3022 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3023 return NULL; |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3024 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, decorator_seq, |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3025 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3026 } |
| 3027 /* check for empty base list */ | |
| 3028 if (TYPE(CHILD(n,3)) == RPAR) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3029 s = ast_for_suite(c, CHILD(n,5)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3030 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3031 return NULL; |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3032 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, decorator_seq, |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3033 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3034 } |
| 3035 | |
| 3036 /* else handle the base class list */ | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
3037 bases = ast_for_class_bases(c, CHILD(n, 3)); |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
3038 if (!bases) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3039 return NULL; |
| 35742 | 3040 |
| 3041 s = ast_for_suite(c, CHILD(n, 6)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
3042 if (!s) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3043 return NULL; |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3044 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), bases, s, decorator_seq, |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3045 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3046 } |
| 3047 | |
| 3048 static stmt_ty | |
| 3049 ast_for_stmt(struct compiling *c, const node *n) | |
| 3050 { | |
| 3051 if (TYPE(n) == stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3052 assert(NCH(n) == 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3053 n = CHILD(n, 0); |
| 35742 | 3054 } |
| 3055 if (TYPE(n) == simple_stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3056 assert(num_stmts(n) == 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3057 n = CHILD(n, 0); |
| 35742 | 3058 } |
| 3059 if (TYPE(n) == small_stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3060 REQ(n, small_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3061 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3062 /* small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3063 | flow_stmt | import_stmt | global_stmt | exec_stmt |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3064 | assert_stmt |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3065 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3066 switch (TYPE(n)) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3067 case expr_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3068 return ast_for_expr_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3069 case print_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3070 return ast_for_print_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3071 case del_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3072 return ast_for_del_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3073 case pass_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3074 return Pass(LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3075 case flow_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3076 return ast_for_flow_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3077 case import_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3078 return ast_for_import_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3079 case global_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3080 return ast_for_global_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3081 case exec_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3082 return ast_for_exec_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3083 case assert_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3084 return ast_for_assert_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3085 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3086 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3087 "unhandled small_stmt: TYPE=%d NCH=%d\n", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3088 TYPE(n), NCH(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3089 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3090 } |
| 35742 | 3091 } |
| 3092 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3093 /* compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3094 | funcdef | classdef | decorated |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3095 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3096 node *ch = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3097 REQ(n, compound_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3098 switch (TYPE(ch)) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3099 case if_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3100 return ast_for_if_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3101 case while_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3102 return ast_for_while_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3103 case for_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3104 return ast_for_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3105 case try_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3106 return ast_for_try_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3107 case with_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3108 return ast_for_with_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3109 case funcdef: |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3110 return ast_for_funcdef(c, ch, NULL); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3111 case classdef: |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3112 return ast_for_classdef(c, ch, NULL); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3113 case decorated: |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3114 return ast_for_decorated(c, ch); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3115 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3116 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3117 "unhandled small_stmt: TYPE=%d NCH=%d\n", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3118 TYPE(n), NCH(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3119 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3120 } |
| 35742 | 3121 } |
| 3122 } | |
| 3123 | |
| 3124 static PyObject * | |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3125 parsenumber(struct compiling *c, const char *s) |
| 35742 | 3126 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3127 const char *end; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3128 long x; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3129 double dx; |
| 35742 | 3130 #ifndef WITHOUT_COMPLEX |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3131 Py_complex complex; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3132 int imflag; |
| 35742 | 3133 #endif |
| 3134 | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3135 errno = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3136 end = s + strlen(s) - 1; |
| 35742 | 3137 #ifndef WITHOUT_COMPLEX |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3138 imflag = *end == 'j' || *end == 'J'; |
| 35742 | 3139 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3140 if (*end == 'l' || *end == 'L') |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3141 return PyLong_FromString((char *)s, (char **)0, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3142 if (s[0] == '0') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3143 x = (long) PyOS_strtoul((char *)s, (char **)&end, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3144 if (x < 0 && errno == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3145 return PyLong_FromString((char *)s, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3146 (char **)0, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3147 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3148 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3149 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3150 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3151 x = PyOS_strtol((char *)s, (char **)&end, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3152 if (*end == '\0') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3153 if (errno != 0) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3154 return PyLong_FromString((char *)s, (char **)0, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3155 return PyInt_FromLong(x); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3156 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3157 /* XXX Huge floats may silently fail */ |
| 35742 | 3158 #ifndef WITHOUT_COMPLEX |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3159 if (imflag) { |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3160 complex.real = 0.; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3161 PyFPE_START_PROTECT("atof", return 0) |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3162 complex.imag = PyOS_ascii_atof(s); |
|
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3163 PyFPE_END_PROTECT(complex) |
|
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3164 return PyComplex_FromCComplex(complex); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3165 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3166 else |
| 35742 | 3167 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3168 { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3169 PyFPE_START_PROTECT("atof", return 0) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3170 dx = PyOS_ascii_atof(s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3171 PyFPE_END_PROTECT(dx) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3172 return PyFloat_FromDouble(dx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3173 } |
| 35742 | 3174 } |
| 3175 | |
| 3176 static PyObject * | |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3177 decode_utf8(struct compiling *c, const char **sPtr, const char *end, char* encoding) |
| 35742 | 3178 { |
| 3179 #ifndef Py_USING_UNICODE | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3180 Py_FatalError("decode_utf8 should not be called in this build."); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3181 return NULL; |
| 35742 | 3182 #else |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3183 PyObject *u, *v; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3184 char *s, *t; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3185 t = s = (char *)*sPtr; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3186 /* while (s < end && *s != '\\') s++; */ /* inefficient for u".." */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3187 while (s < end && (*s & 0x80)) s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3188 *sPtr = s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3189 u = PyUnicode_DecodeUTF8(t, s - t, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3190 if (u == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3191 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3192 v = PyUnicode_AsEncodedString(u, encoding, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3193 Py_DECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3194 return v; |
| 35742 | 3195 #endif |
| 3196 } | |
| 3197 | |
|
42459
dbfc3cf1522d
Place #ifdef Py_USING_UNICODE around decode_unicode().
Georg Brandl <georg@python.org>
parents:
42308
diff
changeset
|
3198 #ifdef Py_USING_UNICODE |
| 35742 | 3199 static PyObject * |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3200 decode_unicode(struct compiling *c, const char *s, size_t len, int rawmode, const char *encoding) |
| 35742 | 3201 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3202 PyObject *v, *u; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3203 char *buf; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3204 char *p; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3205 const char *end; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3206 if (encoding == NULL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3207 buf = (char *)s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3208 u = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3209 } else if (strcmp(encoding, "iso-8859-1") == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3210 buf = (char *)s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3211 u = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3212 } else { |
|
47587
1c964ed35ef9
Merge in release25-maint r60793:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47527
diff
changeset
|
3213 /* check for integer overflow */ |
|
1c964ed35ef9
Merge in release25-maint r60793:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47527
diff
changeset
|
3214 if (len > PY_SIZE_MAX / 4) |
|
1c964ed35ef9
Merge in release25-maint r60793:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47527
diff
changeset
|
3215 return NULL; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3216 /* "\XX" may become "\u005c\uHHLL" (12 bytes) */ |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3217 u = PyString_FromStringAndSize((char *)NULL, len * 4); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3218 if (u == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3219 return NULL; |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3220 p = buf = PyString_AsString(u); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3221 end = s + len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3222 while (s < end) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3223 if (*s == '\\') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3224 *p++ = *s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3225 if (*s & 0x80) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3226 strcpy(p, "u005c"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3227 p += 5; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3228 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3229 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3230 if (*s & 0x80) { /* XXX inefficient */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3231 PyObject *w; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3232 char *r; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3233 Py_ssize_t rn, i; |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3234 w = decode_utf8(c, &s, end, "utf-16-be"); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3235 if (w == NULL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3236 Py_DECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3237 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3238 } |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3239 r = PyString_AsString(w); |
|
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3240 rn = PyString_Size(w); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3241 assert(rn % 2 == 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3242 for (i = 0; i < rn; i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3243 sprintf(p, "\\u%02x%02x", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3244 r[i + 0] & 0xFF, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3245 r[i + 1] & 0xFF); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3246 p += 6; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3247 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3248 Py_DECREF(w); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3249 } else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3250 *p++ = *s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3251 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3252 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3253 len = p - buf; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3254 s = buf; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3255 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3256 if (rawmode) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3257 v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3258 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3259 v = PyUnicode_DecodeUnicodeEscape(s, len, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3260 Py_XDECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3261 return v; |
| 35742 | 3262 } |
|
42459
dbfc3cf1522d
Place #ifdef Py_USING_UNICODE around decode_unicode().
Georg Brandl <georg@python.org>
parents:
42308
diff
changeset
|
3263 #endif |
| 35742 | 3264 |
| 3265 /* s is a Python string literal, including the bracketing quote characters, | |
| 3266 * and r &/or u prefixes (if any), and embedded escape sequences (if any). | |
| 3267 * parsestr parses it, and returns the decoded Python string object. | |
| 3268 */ | |
| 3269 static PyObject * | |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3270 parsestr(struct compiling *c, const char *s) |
| 35742 | 3271 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3272 size_t len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3273 int quote = Py_CHARMASK(*s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3274 int rawmode = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3275 int need_encoding; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3276 int unicode = c->c_future_unicode; |
| 35742 | 3277 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3278 if (isalpha(quote) || quote == '_') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3279 if (quote == 'u' || quote == 'U') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3280 quote = *++s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3281 unicode = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3282 } |
|
44747
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3283 if (quote == 'b' || quote == 'B') { |
|
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3284 quote = *++s; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3285 unicode = 0; |
|
44747
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3286 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3287 if (quote == 'r' || quote == 'R') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3288 quote = *++s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3289 rawmode = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3290 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3291 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3292 if (quote != '\'' && quote != '\"') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3293 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3294 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3295 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3296 s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3297 len = strlen(s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3298 if (len > INT_MAX) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3299 PyErr_SetString(PyExc_OverflowError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3300 "string to parse is too long"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3301 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3302 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3303 if (s[--len] != quote) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3304 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3305 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3306 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3307 if (len >= 4 && s[0] == quote && s[1] == quote) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3308 s += 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3309 len -= 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3310 if (s[--len] != quote || s[--len] != quote) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3311 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3312 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3313 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3314 } |
| 35742 | 3315 #ifdef Py_USING_UNICODE |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3316 if (unicode || Py_UnicodeFlag) { |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3317 return decode_unicode(c, s, len, rawmode, c->c_encoding); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3318 } |
| 35742 | 3319 #endif |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3320 need_encoding = (c->c_encoding != NULL && |
|
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3321 strcmp(c->c_encoding, "utf-8") != 0 && |
|
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3322 strcmp(c->c_encoding, "iso-8859-1") != 0); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3323 if (rawmode || strchr(s, '\\') == NULL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3324 if (need_encoding) { |
| 35742 | 3325 #ifndef Py_USING_UNICODE |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3326 /* This should not happen - we never see any other |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3327 encoding. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3328 Py_FatalError( |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3329 "cannot deal with encodings in this build."); |
| 35742 | 3330 #else |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3331 PyObject *v, *u = PyUnicode_DecodeUTF8(s, len, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3332 if (u == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3333 return NULL; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3334 v = PyUnicode_AsEncodedString(u, c->c_encoding, NULL); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3335 Py_DECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3336 return v; |
| 35742 | 3337 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3338 } else { |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3339 return PyString_FromStringAndSize(s, len); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3340 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3341 } |
| 35742 | 3342 |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3343 return PyString_DecodeEscape(s, len, NULL, unicode, |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3344 need_encoding ? c->c_encoding : NULL); |
| 35742 | 3345 } |
| 3346 | |
| 3347 /* Build a Python string object out of a STRING atom. This takes care of | |
| 3348 * compile-time literal catenation, calling parsestr() on each piece, and | |
| 3349 * pasting the intermediate results together. | |
| 3350 */ | |
| 3351 static PyObject * | |
| 3352 parsestrplus(struct compiling *c, const node *n) | |
| 3353 { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3354 PyObject *v; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3355 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3356 REQ(CHILD(n, 0), STRING); |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3357 if ((v = parsestr(c, STR(CHILD(n, 0)))) != NULL) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3358 /* String literal concatenation */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3359 for (i = 1; i < NCH(n); i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3360 PyObject *s; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3361 s = parsestr(c, STR(CHILD(n, i))); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3362 if (s == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3363 goto onError; |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3364 if (PyString_Check(v) && PyString_Check(s)) { |
|
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3365 PyString_ConcatAndDel(&v, s); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3366 if (v == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3367 goto onError; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3368 } |
| 35742 | 3369 #ifdef Py_USING_UNICODE |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3370 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3371 PyObject *temp = PyUnicode_Concat(v, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3372 Py_DECREF(s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3373 Py_DECREF(v); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3374 v = temp; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3375 if (v == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3376 goto onError; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3377 } |
| 35742 | 3378 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3379 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3380 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3381 return v; |
| 35742 | 3382 |
| 3383 onError: | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3384 Py_XDECREF(v); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3385 return NULL; |
| 35742 | 3386 } |