Mercurial > cpython-lru_cache-weakref
annotate Python/ast.c @ 57367:ed30bcffa146 legacy-trunk
improve several corner cases related with argument names in parenthesis
- Fix #7362: give a good error message for parenthesized arguments with
defaults.
- Add a py3k warning for any parenthesized arguments since those are not allowed
in Py3. This warning is not given in tuple unpacking, since that incurs the
tuple unpacking warning.
| author | Benjamin Peterson <benjamin@python.org> |
|---|---|
| date | Thu, 19 Nov 2009 22:54:57 +0000 |
| parents | 844180b7e6ff |
| children | c2fdf25329ff |
| 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 if (id != NULL) |
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51 PyArena_AddPyObject(arena, id); |
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52 return id; |
| 35742 | 53 } |
| 54 | |
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55 #define NEW_IDENTIFIER(n) new_identifier(STR(n), c->c_arena) |
| 35742 | 56 |
| 57 /* This routine provides an invalid object for the syntax error. | |
| 58 The outermost routine must unpack this error and create the | |
| 59 proper object. We do this so that we don't have to pass | |
| 60 the filename to everything function. | |
| 61 | |
| 62 XXX Maybe we should just pass the filename... | |
| 63 */ | |
| 64 | |
| 65 static int | |
| 66 ast_error(const node *n, const char *errstr) | |
| 67 { | |
| 68 PyObject *u = Py_BuildValue("zi", errstr, LINENO(n)); | |
| 69 if (!u) | |
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70 return 0; |
| 35742 | 71 PyErr_SetObject(PyExc_SyntaxError, u); |
| 72 Py_DECREF(u); | |
| 73 return 0; | |
| 74 } | |
| 75 | |
| 76 static void | |
| 77 ast_error_finish(const char *filename) | |
| 78 { | |
| 79 PyObject *type, *value, *tback, *errstr, *loc, *tmp; | |
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80 long lineno; |
| 35742 | 81 |
| 82 assert(PyErr_Occurred()); | |
| 83 if (!PyErr_ExceptionMatches(PyExc_SyntaxError)) | |
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84 return; |
| 35742 | 85 |
| 86 PyErr_Fetch(&type, &value, &tback); | |
| 87 errstr = PyTuple_GetItem(value, 0); | |
| 88 if (!errstr) | |
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89 return; |
| 35742 | 90 Py_INCREF(errstr); |
| 91 lineno = PyInt_AsLong(PyTuple_GetItem(value, 1)); | |
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92 if (lineno == -1) { |
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93 Py_DECREF(errstr); |
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94 return; |
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95 } |
| 35742 | 96 Py_DECREF(value); |
| 97 | |
| 98 loc = PyErr_ProgramText(filename, lineno); | |
| 99 if (!loc) { | |
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100 Py_INCREF(Py_None); |
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101 loc = Py_None; |
| 35742 | 102 } |
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103 tmp = Py_BuildValue("(zlOO)", filename, lineno, Py_None, loc); |
| 35742 | 104 Py_DECREF(loc); |
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105 if (!tmp) { |
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106 Py_DECREF(errstr); |
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107 return; |
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108 } |
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109 value = PyTuple_Pack(2, errstr, tmp); |
| 35742 | 110 Py_DECREF(errstr); |
| 111 Py_DECREF(tmp); | |
| 112 if (!value) | |
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113 return; |
| 35742 | 114 PyErr_Restore(type, value, tback); |
| 115 } | |
| 116 | |
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117 static int |
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118 ast_warn(struct compiling *c, const node *n, char *msg) |
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119 { |
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120 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, c->c_filename, LINENO(n), |
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121 NULL, NULL) < 0) { |
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122 /* if -Werr, change it to a SyntaxError */ |
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123 if (PyErr_Occurred() && PyErr_ExceptionMatches(PyExc_SyntaxWarning)) |
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124 ast_error(n, msg); |
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125 return 0; |
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126 } |
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127 return 1; |
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128 } |
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129 |
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130 static int |
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131 forbidden_check(struct compiling *c, const node *n, const char *x) |
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132 { |
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133 if (!strcmp(x, "None")) |
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134 return ast_error(n, "cannot assign to None"); |
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135 if (!strcmp(x, "__debug__")) |
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136 return ast_error(n, "cannot assign to __debug__"); |
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137 if (Py_Py3kWarningFlag) { |
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138 if (!(strcmp(x, "True") && strcmp(x, "False")) && |
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139 !ast_warn(c, n, "assignment to True or False is forbidden in 3.x")) |
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140 return 0; |
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141 if (!strcmp(x, "nonlocal") && |
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142 !ast_warn(c, n, "nonlocal is a keyword in 3.x")) |
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143 return 0; |
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144 } |
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145 return 1; |
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146 } |
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147 |
| 35742 | 148 /* num_stmts() returns number of contained statements. |
| 149 | |
| 150 Use this routine to determine how big a sequence is needed for | |
| 151 the statements in a parse tree. Its raison d'etre is this bit of | |
| 152 grammar: | |
| 153 | |
| 154 stmt: simple_stmt | compound_stmt | |
| 155 simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE | |
| 156 | |
| 157 A simple_stmt can contain multiple small_stmt elements joined | |
| 158 by semicolons. If the arg is a simple_stmt, the number of | |
| 159 small_stmt elements is returned. | |
| 160 */ | |
| 161 | |
| 162 static int | |
| 163 num_stmts(const node *n) | |
| 164 { | |
| 165 int i, l; | |
| 166 node *ch; | |
| 167 | |
| 168 switch (TYPE(n)) { | |
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169 case single_input: |
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170 if (TYPE(CHILD(n, 0)) == NEWLINE) |
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171 return 0; |
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172 else |
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173 return num_stmts(CHILD(n, 0)); |
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174 case file_input: |
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175 l = 0; |
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176 for (i = 0; i < NCH(n); i++) { |
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177 ch = CHILD(n, i); |
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178 if (TYPE(ch) == stmt) |
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179 l += num_stmts(ch); |
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180 } |
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181 return l; |
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182 case stmt: |
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183 return num_stmts(CHILD(n, 0)); |
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184 case compound_stmt: |
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185 return 1; |
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186 case simple_stmt: |
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187 return NCH(n) / 2; /* Divide by 2 to remove count of semi-colons */ |
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188 case suite: |
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changeset
|
189 if (NCH(n) == 1) |
|
72da48d96257
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diff
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|
190 return num_stmts(CHILD(n, 0)); |
|
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diff
changeset
|
191 else { |
|
72da48d96257
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diff
changeset
|
192 l = 0; |
|
72da48d96257
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|
193 for (i = 2; i < (NCH(n) - 1); i++) |
|
72da48d96257
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|
194 l += num_stmts(CHILD(n, i)); |
|
72da48d96257
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|
195 return l; |
|
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|
196 } |
|
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diff
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|
197 default: { |
|
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diff
changeset
|
198 char buf[128]; |
| 35742 | 199 |
|
50830
e158c70511fe
#4077: No need to append \n when calling Py_FatalError
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents:
50027
diff
changeset
|
200 sprintf(buf, "Non-statement found: %d %d", |
|
41215
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|
201 TYPE(n), NCH(n)); |
|
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|
202 Py_FatalError(buf); |
|
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|
203 } |
| 35742 | 204 } |
| 205 assert(0); | |
| 206 return 0; | |
| 207 } | |
| 208 | |
| 209 /* Transform the CST rooted at node * to the appropriate AST | |
| 210 */ | |
| 211 | |
| 212 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
|
213 PyAST_FromNode(const node *n, PyCompilerFlags *flags, const char *filename, |
|
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|
214 PyArena *arena) |
| 35742 | 215 { |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
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36712
diff
changeset
|
216 int i, j, k, num; |
| 35742 | 217 asdl_seq *stmts = NULL; |
| 218 stmt_ty s; | |
| 219 node *ch; | |
| 220 struct compiling c; | |
| 221 | |
| 222 if (flags && flags->cf_flags & PyCF_SOURCE_IS_UTF8) { | |
|
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|
223 c.c_encoding = "utf-8"; |
|
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|
224 if (TYPE(n) == encoding_decl) { |
|
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|
225 ast_error(n, "encoding declaration in Unicode string"); |
|
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|
226 goto error; |
|
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diff
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|
227 } |
| 35742 | 228 } else if (TYPE(n) == encoding_decl) { |
|
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|
229 c.c_encoding = STR(n); |
|
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|
230 n = CHILD(n, 0); |
| 35742 | 231 } else { |
|
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|
232 c.c_encoding = NULL; |
| 35742 | 233 } |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
234 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
|
235 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
|
236 c.c_filename = filename; |
| 35742 | 237 |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
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36712
diff
changeset
|
238 k = 0; |
| 35742 | 239 switch (TYPE(n)) { |
|
41215
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diff
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|
240 case file_input: |
|
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diff
changeset
|
241 stmts = asdl_seq_new(num_stmts(n), arena); |
|
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diff
changeset
|
242 if (!stmts) |
|
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changeset
|
243 return NULL; |
|
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diff
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|
244 for (i = 0; i < NCH(n) - 1; i++) { |
|
72da48d96257
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diff
changeset
|
245 ch = CHILD(n, i); |
|
72da48d96257
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diff
changeset
|
246 if (TYPE(ch) == NEWLINE) |
|
72da48d96257
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41205
diff
changeset
|
247 continue; |
|
72da48d96257
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diff
changeset
|
248 REQ(ch, stmt); |
|
72da48d96257
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diff
changeset
|
249 num = num_stmts(ch); |
|
72da48d96257
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diff
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|
250 if (num == 1) { |
|
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diff
changeset
|
251 s = ast_for_stmt(&c, ch); |
|
72da48d96257
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diff
changeset
|
252 if (!s) |
|
72da48d96257
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41205
diff
changeset
|
253 goto error; |
|
72da48d96257
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41205
diff
changeset
|
254 asdl_seq_SET(stmts, k++, s); |
|
72da48d96257
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41205
diff
changeset
|
255 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
256 else { |
|
72da48d96257
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diff
changeset
|
257 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
258 REQ(ch, simple_stmt); |
|
72da48d96257
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41205
diff
changeset
|
259 for (j = 0; j < num; j++) { |
|
72da48d96257
Clean up formatting of this file.
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diff
changeset
|
260 s = ast_for_stmt(&c, CHILD(ch, j * 2)); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
261 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
262 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
263 asdl_seq_SET(stmts, k++, s); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
264 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
265 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
266 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
267 return Module(stmts, arena); |
|
72da48d96257
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diff
changeset
|
268 case eval_input: { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
269 expr_ty testlist_ast; |
| 35742 | 270 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
271 /* XXX Why not gen_for here? */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
272 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
|
273 if (!testlist_ast) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
274 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
275 return Expression(testlist_ast, arena); |
|
72da48d96257
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41205
diff
changeset
|
276 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
277 case single_input: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
278 if (TYPE(CHILD(n, 0)) == NEWLINE) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
279 stmts = asdl_seq_new(1, arena); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
280 if (!stmts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
281 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
282 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
|
283 arena)); |
|
41579
7a4f174df844
Handle a couple of uncaught errors. This should be backported
Neal Norwitz <nnorwitz@gmail.com>
parents:
41578
diff
changeset
|
284 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
|
285 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
286 return Interactive(stmts, arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
287 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
288 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
289 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
290 num = num_stmts(n); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
291 stmts = asdl_seq_new(num, arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
292 if (!stmts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
293 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
294 if (num == 1) { |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
295 s = ast_for_stmt(&c, n); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
296 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
297 goto error; |
|
72da48d96257
Clean up formatting of this file.
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parents:
41205
diff
changeset
|
298 asdl_seq_SET(stmts, 0, s); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
299 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
300 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
301 /* Only a simple_stmt can contain multiple statements. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
302 REQ(n, simple_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
303 for (i = 0; i < NCH(n); i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
304 if (TYPE(CHILD(n, i)) == NEWLINE) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
305 break; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
306 s = ast_for_stmt(&c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
307 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
308 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
309 asdl_seq_SET(stmts, i / 2, s); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
310 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
311 } |
| 35742 | 312 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
313 return Interactive(stmts, arena); |
|
72da48d96257
Clean up formatting of this file.
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parents:
41205
diff
changeset
|
314 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
315 default: |
|
41578
bc6a0fe32351
Actually raise an exception before calling ast_error_finish.
Georg Brandl <georg@python.org>
parents:
41215
diff
changeset
|
316 PyErr_Format(PyExc_SystemError, |
|
bc6a0fe32351
Actually raise an exception before calling ast_error_finish.
Georg Brandl <georg@python.org>
parents:
41215
diff
changeset
|
317 "invalid node %d for PyAST_FromNode", TYPE(n)); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
318 goto error; |
| 35742 | 319 } |
| 320 error: | |
| 321 ast_error_finish(filename); | |
| 322 return NULL; | |
| 323 } | |
| 324 | |
| 325 /* Return the AST repr. of the operator represented as syntax (|, ^, etc.) | |
| 326 */ | |
| 327 | |
| 328 static operator_ty | |
| 329 get_operator(const node *n) | |
| 330 { | |
| 331 switch (TYPE(n)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
332 case VBAR: |
|
72da48d96257
Clean up formatting of this file.
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parents:
41205
diff
changeset
|
333 return BitOr; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
334 case CIRCUMFLEX: |
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335 return BitXor; |
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336 case AMPER: |
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337 return BitAnd; |
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338 case LEFTSHIFT: |
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339 return LShift; |
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340 case RIGHTSHIFT: |
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341 return RShift; |
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342 case PLUS: |
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343 return Add; |
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344 case MINUS: |
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345 return Sub; |
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346 case STAR: |
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347 return Mult; |
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348 case SLASH: |
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349 return Div; |
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350 case DOUBLESLASH: |
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351 return FloorDiv; |
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352 case PERCENT: |
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353 return Mod; |
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354 default: |
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355 return (operator_ty)0; |
| 35742 | 356 } |
| 357 } | |
| 358 | |
|
36718
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359 /* Set the context ctx for expr_ty e, recursively traversing e. |
| 35742 | 360 |
| 361 Only sets context for expr kinds that "can appear in assignment context" | |
| 362 (according to ../Parser/Python.asdl). For other expr kinds, it sets | |
| 363 an appropriate syntax error and returns false. | |
| 364 */ | |
| 365 | |
| 366 static int | |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
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367 set_context(struct compiling *c, expr_ty e, expr_context_ty ctx, const node *n) |
| 35742 | 368 { |
| 369 asdl_seq *s = NULL; | |
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370 /* If a particular expression type can't be used for assign / delete, |
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371 set expr_name to its name and an error message will be generated. |
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372 */ |
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373 const char* expr_name = NULL; |
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374 |
|
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375 /* The ast defines augmented store and load contexts, but the |
|
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376 implementation here doesn't actually use them. The code may be |
|
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377 a little more complex than necessary as a result. It also means |
|
39037
9f70f6ba7b69
Fix AST compiler bug #1501934: incorrect LOAD/STORE_GLOBAL generation.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39034
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|
378 that expressions in an augmented assignment have a Store context. |
|
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379 Consider restructuring so that augmented assignment uses |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
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36686
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|
380 set_context(), too. |
|
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381 */ |
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382 assert(ctx != AugStore && ctx != AugLoad); |
| 35742 | 383 |
| 384 switch (e->kind) { | |
|
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385 case Attribute_kind: |
|
47523
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Warn about assigning to Py3k keywords (True and False)
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386 if (ctx == Store && !forbidden_check(c, n, |
|
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|
387 PyBytes_AS_STRING(e->v.Attribute.attr))) |
|
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388 return 0; |
|
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389 e->v.Attribute.ctx = ctx; |
|
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390 break; |
|
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391 case Subscript_kind: |
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392 e->v.Subscript.ctx = ctx; |
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393 break; |
|
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|
394 case Name_kind: |
|
47523
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395 if (ctx == Store && !forbidden_check(c, n, |
|
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|
396 PyBytes_AS_STRING(e->v.Name.id))) |
|
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397 return 0; |
|
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398 e->v.Name.ctx = ctx; |
|
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399 break; |
|
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400 case List_kind: |
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|
401 e->v.List.ctx = ctx; |
|
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402 s = e->v.List.elts; |
|
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|
403 break; |
|
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|
404 case Tuple_kind: |
|
54742
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|
405 if (asdl_seq_LEN(e->v.Tuple.elts)) { |
|
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|
406 e->v.Tuple.ctx = ctx; |
|
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|
407 s = e->v.Tuple.elts; |
|
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|
408 } |
|
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|
409 else { |
|
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|
410 expr_name = "()"; |
|
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changeset
|
411 } |
|
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|
412 break; |
|
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|
413 case Lambda_kind: |
|
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|
414 expr_name = "lambda"; |
|
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|
415 break; |
|
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|
416 case Call_kind: |
|
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|
417 expr_name = "function call"; |
|
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|
418 break; |
|
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|
419 case BoolOp_kind: |
|
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420 case BinOp_kind: |
|
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|
421 case UnaryOp_kind: |
|
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|
422 expr_name = "operator"; |
|
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|
423 break; |
|
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changeset
|
424 case GeneratorExp_kind: |
|
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|
425 expr_name = "generator expression"; |
|
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|
426 break; |
|
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|
427 case Yield_kind: |
|
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|
428 expr_name = "yield expression"; |
|
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|
429 break; |
|
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changeset
|
430 case ListComp_kind: |
|
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|
431 expr_name = "list comprehension"; |
|
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|
432 break; |
|
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|
433 case Dict_kind: |
|
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|
434 case Num_kind: |
|
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|
435 case Str_kind: |
|
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changeset
|
436 expr_name = "literal"; |
|
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|
437 break; |
|
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changeset
|
438 case Compare_kind: |
|
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changeset
|
439 expr_name = "comparison"; |
|
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|
440 break; |
|
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changeset
|
441 case Repr_kind: |
|
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changeset
|
442 expr_name = "repr"; |
|
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|
443 break; |
|
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diff
changeset
|
444 case IfExp_kind: |
|
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changeset
|
445 expr_name = "conditional expression"; |
|
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changeset
|
446 break; |
|
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diff
changeset
|
447 default: |
|
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changeset
|
448 PyErr_Format(PyExc_SystemError, |
|
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changeset
|
449 "unexpected expression in assignment %d (line %d)", |
|
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changeset
|
450 e->kind, e->lineno); |
|
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changeset
|
451 return 0; |
| 35742 | 452 } |
|
36418
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diff
changeset
|
453 /* Check for error string set by switch */ |
|
a625e8876407
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changeset
|
454 if (expr_name) { |
|
41215
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changeset
|
455 char buf[300]; |
|
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changeset
|
456 PyOS_snprintf(buf, sizeof(buf), |
|
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diff
changeset
|
457 "can't %s %s", |
|
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changeset
|
458 ctx == Store ? "assign to" : "delete", |
|
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changeset
|
459 expr_name); |
|
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changeset
|
460 return ast_error(n, buf); |
|
36418
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diff
changeset
|
461 } |
|
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diff
changeset
|
462 |
| 35742 | 463 /* If the LHS is a list or tuple, we need to set the assignment |
|
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changeset
|
464 context for all the contained elements. |
| 35742 | 465 */ |
| 466 if (s) { | |
|
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changeset
|
467 int i; |
| 35742 | 468 |
|
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469 for (i = 0; i < asdl_seq_LEN(s); i++) { |
|
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|
470 if (!set_context(c, (expr_ty)asdl_seq_GET(s, i), ctx, n)) |
|
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471 return 0; |
|
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472 } |
| 35742 | 473 } |
| 474 return 1; | |
| 475 } | |
| 476 | |
| 477 static operator_ty | |
|
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|
478 ast_for_augassign(struct compiling *c, const node *n) |
| 35742 | 479 { |
| 480 REQ(n, augassign); | |
| 481 n = CHILD(n, 0); | |
| 482 switch (STR(n)[0]) { | |
|
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483 case '+': |
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484 return Add; |
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485 case '-': |
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486 return Sub; |
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487 case '/': |
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488 if (STR(n)[1] == '/') |
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489 return FloorDiv; |
|
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490 else |
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|
491 return Div; |
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492 case '%': |
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493 return Mod; |
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494 case '<': |
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495 return LShift; |
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496 case '>': |
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497 return RShift; |
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498 case '&': |
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499 return BitAnd; |
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500 case '^': |
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501 return BitXor; |
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502 case '|': |
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503 return BitOr; |
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504 case '*': |
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505 if (STR(n)[1] == '*') |
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506 return Pow; |
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507 else |
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508 return Mult; |
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509 default: |
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510 PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n)); |
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511 return (operator_ty)0; |
| 35742 | 512 } |
| 513 } | |
| 514 | |
| 515 static cmpop_ty | |
|
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516 ast_for_comp_op(struct compiling *c, const node *n) |
| 35742 | 517 { |
| 518 /* comp_op: '<'|'>'|'=='|'>='|'<='|'<>'|'!='|'in'|'not' 'in'|'is' | |
|
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519 |'is' 'not' |
| 35742 | 520 */ |
| 521 REQ(n, comp_op); | |
| 522 if (NCH(n) == 1) { | |
|
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523 n = CHILD(n, 0); |
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524 switch (TYPE(n)) { |
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525 case LESS: |
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526 return Lt; |
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527 case GREATER: |
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528 return Gt; |
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529 case EQEQUAL: /* == */ |
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530 return Eq; |
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531 case LESSEQUAL: |
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532 return LtE; |
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533 case GREATEREQUAL: |
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534 return GtE; |
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535 case NOTEQUAL: |
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536 return NotEq; |
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537 case NAME: |
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538 if (strcmp(STR(n), "in") == 0) |
|
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|
539 return In; |
|
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|
540 if (strcmp(STR(n), "is") == 0) |
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541 return Is; |
|
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|
542 default: |
|
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|
543 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s", |
|
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|
544 STR(n)); |
|
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|
545 return (cmpop_ty)0; |
|
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546 } |
| 35742 | 547 } |
| 548 else if (NCH(n) == 2) { | |
|
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|
549 /* handle "not in" and "is not" */ |
|
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|
550 switch (TYPE(CHILD(n, 0))) { |
|
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|
551 case NAME: |
|
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|
552 if (strcmp(STR(CHILD(n, 1)), "in") == 0) |
|
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|
553 return NotIn; |
|
72da48d96257
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|
554 if (strcmp(STR(CHILD(n, 0)), "is") == 0) |
|
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|
555 return IsNot; |
|
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|
556 default: |
|
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|
557 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s", |
|
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|
558 STR(CHILD(n, 0)), STR(CHILD(n, 1))); |
|
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|
559 return (cmpop_ty)0; |
|
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|
560 } |
| 35742 | 561 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
562 PyErr_Format(PyExc_SystemError, "invalid comp_op: has %d children", |
|
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diff
changeset
|
563 NCH(n)); |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
564 return (cmpop_ty)0; |
| 35742 | 565 } |
| 566 | |
| 567 static asdl_seq * | |
| 568 seq_for_testlist(struct compiling *c, const node *n) | |
| 569 { | |
| 570 /* testlist: test (',' test)* [','] */ | |
|
35759
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
571 asdl_seq *seq; |
|
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
572 expr_ty expression; |
|
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
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35748
diff
changeset
|
573 int i; |
|
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|
574 assert(TYPE(n) == testlist || |
|
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|
575 TYPE(n) == listmaker || |
|
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|
576 TYPE(n) == testlist_gexp || |
|
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|
577 TYPE(n) == testlist_safe || |
|
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|
578 TYPE(n) == testlist1); |
| 35742 | 579 |
|
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
|
580 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 581 if (!seq) |
|
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|
582 return NULL; |
| 35742 | 583 |
| 584 for (i = 0; i < NCH(n); i += 2) { | |
|
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|
585 assert(TYPE(CHILD(n, i)) == test || TYPE(CHILD(n, i)) == old_test); |
| 35742 | 586 |
|
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|
587 expression = ast_for_expr(c, CHILD(n, i)); |
|
72da48d96257
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|
588 if (!expression) |
|
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|
589 return NULL; |
| 35742 | 590 |
|
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changeset
|
591 assert(i / 2 < seq->size); |
|
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diff
changeset
|
592 asdl_seq_SET(seq, i / 2, expression); |
| 35742 | 593 } |
| 594 return seq; | |
| 595 } | |
| 596 | |
| 597 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
|
598 compiler_complex_args(struct compiling *c, const node *n) |
| 35742 | 599 { |
| 600 int i, len = (NCH(n) + 1) / 2; | |
| 601 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
|
602 asdl_seq *args = asdl_seq_new(len, c->c_arena); |
| 35742 | 603 if (!args) |
|
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|
604 return NULL; |
| 35742 | 605 |
|
39872
b8cb7201379c
Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)).
Neal Norwitz <nnorwitz@gmail.com>
parents:
39779
diff
changeset
|
606 /* 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
|
607 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
|
608 */ |
| 35742 | 609 REQ(n, fplist); |
| 610 for (i = 0; i < len; i++) { | |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
611 PyObject *arg_id; |
|
41215
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diff
changeset
|
612 const node *fpdef_node = CHILD(n, 2*i); |
|
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|
613 const node *child; |
|
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|
614 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
|
615 set_name: |
|
41215
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diff
changeset
|
616 /* fpdef_node is either a NAME or an fplist */ |
|
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changeset
|
617 child = CHILD(fpdef_node, 0); |
|
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changeset
|
618 if (TYPE(child) == NAME) { |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
619 if (!forbidden_check(c, n, STR(child))) |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
620 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
621 arg_id = NEW_IDENTIFIER(child); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
622 if (!arg_id) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
623 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
624 arg = Name(arg_id, Store, LINENO(child), child->n_col_offset, |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
625 c->c_arena); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
626 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
627 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
628 assert(TYPE(fpdef_node) == fpdef); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
629 /* fpdef_node[0] is not a name, so it must be '(', get CHILD[1] */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
630 child = CHILD(fpdef_node, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
631 assert(TYPE(child) == fplist); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
632 /* NCH == 1 means we have (x), we need to elide the extra parens */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
633 if (NCH(child) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
634 fpdef_node = CHILD(child, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
635 assert(TYPE(fpdef_node) == fpdef); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
636 goto set_name; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
637 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
638 arg = compiler_complex_args(c, child); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
639 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
640 asdl_seq_SET(args, i, arg); |
| 35742 | 641 } |
| 642 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
643 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
|
644 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
|
645 return NULL; |
| 35742 | 646 return result; |
| 647 } | |
| 648 | |
| 649 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
650 /* Create AST for argument list. */ |
| 35742 | 651 |
| 652 static arguments_ty | |
| 653 ast_for_arguments(struct compiling *c, const node *n) | |
| 654 { | |
| 655 /* parameters: '(' [varargslist] ')' | |
| 656 varargslist: (fpdef ['=' test] ',')* ('*' NAME [',' '**' NAME] | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
657 | '**' NAME) | fpdef ['=' test] (',' fpdef ['=' test])* [','] |
| 35742 | 658 */ |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
659 int i, j, k, n_args = 0, n_defaults = 0, found_default = 0; |
| 35742 | 660 asdl_seq *args, *defaults; |
| 661 identifier vararg = NULL, kwarg = NULL; | |
| 662 node *ch; | |
| 663 | |
| 664 if (TYPE(n) == parameters) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
665 if (NCH(n) == 2) /* () as argument list */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
666 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
|
667 n = CHILD(n, 1); |
| 35742 | 668 } |
| 669 REQ(n, varargslist); | |
| 670 | |
| 671 /* first count the number of normal args & defaults */ | |
| 672 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
|
673 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
674 if (TYPE(ch) == fpdef) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
675 n_args++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
676 if (TYPE(ch) == EQUAL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
677 n_defaults++; |
| 35742 | 678 } |
|
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
|
679 args = (n_args ? asdl_seq_new(n_args, c->c_arena) : NULL); |
| 35742 | 680 if (!args && n_args) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
681 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
|
682 defaults = (n_defaults ? asdl_seq_new(n_defaults, c->c_arena) : NULL); |
| 35742 | 683 if (!defaults && n_defaults) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
684 return NULL; /* Don't need to goto error; no objects allocated */ |
| 35742 | 685 |
| 686 /* fpdef: NAME | '(' fplist ')' | |
| 687 fplist: fpdef (',' fpdef)* [','] | |
| 688 */ | |
| 689 i = 0; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
690 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
|
691 k = 0; /* index for args */ |
| 35742 | 692 while (i < NCH(n)) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
693 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
694 switch (TYPE(ch)) { |
|
57367
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
695 case fpdef: { |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
696 int complex_args = 0, parenthesized = 0; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
697 handle_fpdef: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
698 /* 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
|
699 anything other than EQUAL or a comma? */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
700 /* 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
|
701 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
|
702 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
|
703 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
704 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
705 assert(defaults != NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
706 asdl_seq_SET(defaults, j++, expression); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
707 i += 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
708 found_default = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
709 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
710 else if (found_default) { |
|
57367
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
711 /* def f((x)=4): pass should raise an error. |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
712 def f((x, (y))): pass will just incur the tuple unpacking warning. */ |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
713 if (parenthesized && !complex_args) { |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
714 ast_error(n, "parenthesized arg with default"); |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
715 goto error; |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
716 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
717 ast_error(n, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
718 "non-default argument follows default argument"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
719 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
720 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
721 if (NCH(ch) == 3) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
722 ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
723 /* 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
|
724 if (NCH(ch) != 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
725 /* We have complex arguments, setup for unpacking. */ |
|
47524
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
726 if (Py_Py3kWarningFlag && !ast_warn(c, ch, |
|
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
727 "tuple parameter unpacking has been removed in 3.x")) |
|
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
728 goto error; |
|
57367
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
729 complex_args = 1; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
730 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
|
731 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
|
732 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
733 } else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
734 /* 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
|
735 /* 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
|
736 unpacking mixed in. */ |
|
57367
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
737 parenthesized = 1; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
738 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
739 assert(TYPE(ch) == fpdef); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
740 goto handle_fpdef; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
741 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
742 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
743 if (TYPE(CHILD(ch, 0)) == NAME) { |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
744 PyObject *id; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
745 expr_ty name; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
746 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
|
747 goto error; |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
748 id = NEW_IDENTIFIER(CHILD(ch, 0)); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
749 if (!id) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
750 goto error; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
751 name = Name(id, Param, LINENO(ch), ch->n_col_offset, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
752 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
753 if (!name) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
754 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
755 asdl_seq_SET(args, k++, name); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
756 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
757 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
758 i += 2; /* the name and the comma */ |
|
57367
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
759 if (parenthesized && Py_Py3kWarningFlag && |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
760 !ast_warn(c, ch, "parenthesized argument names " |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
761 "are invalid in 3.x")) |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
762 goto error; |
|
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
763 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
764 break; |
|
57367
ed30bcffa146
improve several corner cases related with argument names in parenthesis
Benjamin Peterson <benjamin@python.org>
parents:
56956
diff
changeset
|
765 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
766 case STAR: |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
767 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
|
768 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
769 vararg = NEW_IDENTIFIER(CHILD(n, i+1)); |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
770 if (!vararg) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
771 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
772 i += 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
773 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
774 case DOUBLESTAR: |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
775 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
|
776 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
777 kwarg = NEW_IDENTIFIER(CHILD(n, i+1)); |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
778 if (!kwarg) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
779 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
780 i += 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
781 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
782 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
783 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
784 "unexpected node in varargslist: %d @ %d", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
785 TYPE(ch), i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
786 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
787 } |
| 35742 | 788 } |
| 789 | |
|
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
|
790 return arguments(args, vararg, kwarg, defaults, c->c_arena); |
| 35742 | 791 |
| 792 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
|
793 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
|
794 Py_XDECREF(kwarg); |
| 35742 | 795 return NULL; |
| 796 } | |
| 797 | |
| 798 static expr_ty | |
| 799 ast_for_dotted_name(struct compiling *c, const node *n) | |
| 800 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
801 expr_ty e; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
802 identifier id; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
803 int lineno, col_offset; |
| 35742 | 804 int i; |
| 805 | |
| 806 REQ(n, dotted_name); | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
807 |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
808 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
809 col_offset = n->n_col_offset; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
810 |
| 35742 | 811 id = NEW_IDENTIFIER(CHILD(n, 0)); |
| 812 if (!id) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
813 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
814 e = Name(id, Load, lineno, col_offset, c->c_arena); |
| 35742 | 815 if (!e) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
816 return NULL; |
| 35742 | 817 |
| 818 for (i = 2; i < NCH(n); i+=2) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
819 id = NEW_IDENTIFIER(CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
820 if (!id) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
821 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
822 e = Attribute(e, id, Load, lineno, col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
823 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
824 return NULL; |
| 35742 | 825 } |
| 826 | |
| 827 return e; | |
| 828 } | |
| 829 | |
| 830 static expr_ty | |
| 831 ast_for_decorator(struct compiling *c, const node *n) | |
| 832 { | |
| 833 /* decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE */ | |
| 834 expr_ty d = NULL; | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
835 expr_ty name_expr; |
| 35742 | 836 |
| 837 REQ(n, decorator); | |
|
36418
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
838 REQ(CHILD(n, 0), AT); |
|
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
839 REQ(RCHILD(n, -1), NEWLINE); |
| 35742 | 840 |
| 841 name_expr = ast_for_dotted_name(c, CHILD(n, 1)); | |
| 842 if (!name_expr) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
843 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
844 |
| 35742 | 845 if (NCH(n) == 3) { /* No arguments */ |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
846 d = name_expr; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
847 name_expr = NULL; |
| 35742 | 848 } |
| 849 else if (NCH(n) == 5) { /* Call with no arguments */ | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
850 d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
851 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
852 if (!d) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
853 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
854 name_expr = NULL; |
| 35742 | 855 } |
| 856 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
857 d = ast_for_call(c, CHILD(n, 3), name_expr); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
858 if (!d) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
859 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
860 name_expr = NULL; |
| 35742 | 861 } |
| 862 | |
| 863 return d; | |
| 864 } | |
| 865 | |
| 866 static asdl_seq* | |
| 867 ast_for_decorators(struct compiling *c, const node *n) | |
| 868 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
869 asdl_seq* decorator_seq; |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
870 expr_ty d; |
| 35742 | 871 int i; |
| 872 | |
| 873 REQ(n, decorators); | |
|
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
|
874 decorator_seq = asdl_seq_new(NCH(n), c->c_arena); |
| 35742 | 875 if (!decorator_seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
876 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
877 |
| 35742 | 878 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
|
879 d = ast_for_decorator(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
880 if (!d) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
881 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
882 asdl_seq_SET(decorator_seq, i, d); |
| 35742 | 883 } |
| 884 return decorator_seq; | |
| 885 } | |
| 886 | |
| 887 static stmt_ty | |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
888 ast_for_funcdef(struct compiling *c, const node *n, asdl_seq *decorator_seq) |
| 35742 | 889 { |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
890 /* funcdef: 'def' NAME parameters ':' suite */ |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
891 identifier name; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
892 arguments_ty args; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
893 asdl_seq *body; |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
894 int name_i = 1; |
| 35742 | 895 |
| 896 REQ(n, funcdef); | |
| 897 | |
| 898 name = NEW_IDENTIFIER(CHILD(n, name_i)); | |
| 899 if (!name) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
900 return NULL; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
901 else if (!forbidden_check(c, CHILD(n, name_i), STR(CHILD(n, name_i)))) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
902 return NULL; |
| 35742 | 903 args = ast_for_arguments(c, CHILD(n, name_i + 1)); |
| 904 if (!args) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
905 return NULL; |
| 35742 | 906 body = ast_for_suite(c, CHILD(n, name_i + 3)); |
| 907 if (!body) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
908 return NULL; |
| 35742 | 909 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
910 return FunctionDef(name, args, body, decorator_seq, LINENO(n), |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
911 n->n_col_offset, c->c_arena); |
| 35742 | 912 } |
| 913 | |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
914 static stmt_ty |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
915 ast_for_decorated(struct compiling *c, const node *n) |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
916 { |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
917 /* decorated: decorators (classdef | funcdef) */ |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
918 stmt_ty thing = NULL; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
919 asdl_seq *decorator_seq = NULL; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
920 |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
921 REQ(n, decorated); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
922 |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
923 decorator_seq = ast_for_decorators(c, CHILD(n, 0)); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
924 if (!decorator_seq) |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
925 return NULL; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
926 |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
927 assert(TYPE(CHILD(n, 1)) == funcdef || |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
928 TYPE(CHILD(n, 1)) == classdef); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
929 |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
930 if (TYPE(CHILD(n, 1)) == funcdef) { |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
931 thing = ast_for_funcdef(c, CHILD(n, 1), decorator_seq); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
932 } else if (TYPE(CHILD(n, 1)) == classdef) { |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
933 thing = ast_for_classdef(c, CHILD(n, 1), decorator_seq); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
934 } |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
935 /* we count the decorators in when talking about the class' or |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
936 function's line number */ |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
937 if (thing) { |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
938 thing->lineno = LINENO(n); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
939 thing->col_offset = n->n_col_offset; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
940 } |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
941 return thing; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
942 } |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
943 |
| 35742 | 944 static expr_ty |
| 945 ast_for_lambdef(struct compiling *c, const node *n) | |
| 946 { | |
| 947 /* lambdef: 'lambda' [varargslist] ':' test */ | |
| 948 arguments_ty args; | |
| 949 expr_ty expression; | |
| 950 | |
| 951 if (NCH(n) == 3) { | |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
952 args = arguments(NULL, NULL, NULL, NULL, c->c_arena); |
|
72da48d96257
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changeset
|
953 if (!args) |
|
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|
954 return NULL; |
|
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|
955 expression = ast_for_expr(c, CHILD(n, 2)); |
|
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|
956 if (!expression) |
|
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|
957 return NULL; |
| 35742 | 958 } |
| 959 else { | |
|
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|
960 args = ast_for_arguments(c, CHILD(n, 1)); |
|
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|
961 if (!args) |
|
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|
962 return NULL; |
|
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|
963 expression = ast_for_expr(c, CHILD(n, 3)); |
|
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changeset
|
964 if (!expression) |
|
72da48d96257
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diff
changeset
|
965 return NULL; |
| 35742 | 966 } |
| 967 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
968 return Lambda(args, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 969 } |
| 970 | |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
971 static expr_ty |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
972 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
|
973 { |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
974 /* 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
|
975 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
|
976 |
|
36676
67c74efad8c2
Fix old not-reading-pep-308-right artifact.
Thomas Wouters <thomas@python.org>
parents:
36670
diff
changeset
|
977 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
|
978 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
|
979 if (!body) |
|
41215
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|
980 return NULL; |
|
36666
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PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
981 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
|
982 if (!expression) |
|
41215
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diff
changeset
|
983 return NULL; |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
984 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
|
985 if (!orelse) |
|
41215
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Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
986 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
|
987 return IfExp(expression, body, orelse, LINENO(n), n->n_col_offset, |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
988 c->c_arena); |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
989 } |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
990 |
|
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
|
991 /* 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
|
992 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
|
993 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
|
994 */ |
|
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.
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parents:
39753
diff
changeset
|
995 |
| 35742 | 996 /* Count the number of 'for' loop in a list comprehension. |
| 997 | |
| 998 Helper for ast_for_listcomp(). | |
| 999 */ | |
| 1000 | |
| 1001 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
|
1002 count_list_fors(struct compiling *c, const node *n) |
| 35742 | 1003 { |
| 1004 int n_fors = 0; | |
| 1005 node *ch = CHILD(n, 1); | |
| 1006 | |
| 1007 count_list_for: | |
| 1008 n_fors++; | |
| 1009 REQ(ch, list_for); | |
| 1010 if (NCH(ch) == 5) | |
|
41215
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Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
1011 ch = CHILD(ch, 4); |
| 35742 | 1012 else |
|
41215
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Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
|
1013 return n_fors; |
| 35742 | 1014 count_list_iter: |
| 1015 REQ(ch, list_iter); | |
| 1016 ch = CHILD(ch, 0); | |
| 1017 if (TYPE(ch) == list_for) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1018 goto count_list_for; |
| 35742 | 1019 else if (TYPE(ch) == list_if) { |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
1020 if (NCH(ch) == 3) { |
|
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diff
changeset
|
1021 ch = CHILD(ch, 2); |
|
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diff
changeset
|
1022 goto count_list_iter; |
|
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diff
changeset
|
1023 } |
|
72da48d96257
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diff
changeset
|
1024 else |
|
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diff
changeset
|
1025 return n_fors; |
| 35742 | 1026 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1027 |
|
de16a85c3b4c
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36066
diff
changeset
|
1028 /* Should never be reached */ |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
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parents:
36066
diff
changeset
|
1029 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
|
1030 return -1; |
| 35742 | 1031 } |
| 1032 | |
| 1033 /* Count the number of 'if' statements in a list comprehension. | |
| 1034 | |
| 1035 Helper for ast_for_listcomp(). | |
| 1036 */ | |
| 1037 | |
| 1038 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
|
1039 count_list_ifs(struct compiling *c, const node *n) |
| 35742 | 1040 { |
| 1041 int n_ifs = 0; | |
| 1042 | |
| 1043 count_list_iter: | |
| 1044 REQ(n, list_iter); | |
| 1045 if (TYPE(CHILD(n, 0)) == list_for) | |
|
41215
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diff
changeset
|
1046 return n_ifs; |
| 35742 | 1047 n = CHILD(n, 0); |
| 1048 REQ(n, list_if); | |
| 1049 n_ifs++; | |
| 1050 if (NCH(n) == 2) | |
|
41215
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diff
changeset
|
1051 return n_ifs; |
| 35742 | 1052 n = CHILD(n, 2); |
| 1053 goto count_list_iter; | |
| 1054 } | |
| 1055 | |
| 1056 static expr_ty | |
| 1057 ast_for_listcomp(struct compiling *c, const node *n) | |
| 1058 { | |
| 1059 /* listmaker: test ( list_for | (',' test)* [','] ) | |
| 1060 list_for: 'for' exprlist 'in' testlist_safe [list_iter] | |
| 1061 list_iter: list_for | list_if | |
| 1062 list_if: 'if' test [list_iter] | |
| 1063 testlist_safe: test [(',' test)+ [',']] | |
| 1064 */ | |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
1065 expr_ty elt, first; |
| 35742 | 1066 asdl_seq *listcomps; |
| 1067 int i, n_fors; | |
| 1068 node *ch; | |
| 1069 | |
| 1070 REQ(n, listmaker); | |
| 1071 assert(NCH(n) > 1); | |
| 1072 | |
| 1073 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1074 if (!elt) | |
|
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diff
changeset
|
1075 return NULL; |
| 35742 | 1076 |
|
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
|
1077 n_fors = count_list_fors(c, n); |
| 35742 | 1078 if (n_fors == -1) |
|
41215
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diff
changeset
|
1079 return NULL; |
| 35742 | 1080 |
|
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
|
1081 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
|
1082 if (!listcomps) |
|
41215
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diff
changeset
|
1083 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
|
1084 |
| 35742 | 1085 ch = CHILD(n, 1); |
| 1086 for (i = 0; i < n_fors; i++) { | |
|
41215
72da48d96257
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diff
changeset
|
1087 comprehension_ty lc; |
|
72da48d96257
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41205
diff
changeset
|
1088 asdl_seq *t; |
|
72da48d96257
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diff
changeset
|
1089 expr_ty expression; |
|
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41205
diff
changeset
|
1090 node *for_ch; |
|
72da48d96257
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diff
changeset
|
1091 |
|
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diff
changeset
|
1092 REQ(ch, list_for); |
|
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changeset
|
1093 |
|
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changeset
|
1094 for_ch = CHILD(ch, 1); |
|
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changeset
|
1095 t = ast_for_exprlist(c, for_ch, Store); |
|
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changeset
|
1096 if (!t) |
|
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|
1097 return NULL; |
|
72da48d96257
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diff
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|
1098 expression = ast_for_testlist(c, CHILD(ch, 3)); |
|
72da48d96257
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diff
changeset
|
1099 if (!expression) |
|
72da48d96257
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diff
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|
1100 return NULL; |
|
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diff
changeset
|
1101 |
|
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41205
diff
changeset
|
1102 /* Check the # of children rather than the length of t, since |
|
72da48d96257
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41205
diff
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|
1103 [x for x, in ... ] has 1 element in t, but still requires a Tuple. |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1104 */ |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
1105 first = (expr_ty)asdl_seq_GET(t, 0); |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1106 if (NCH(for_ch) == 1) |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
1107 lc = comprehension(first, expression, NULL, c->c_arena); |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1108 else |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
1109 lc = comprehension(Tuple(t, Store, first->lineno, first->col_offset, |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1110 c->c_arena), |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1111 expression, NULL, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1112 if (!lc) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1113 return NULL; |
| 35742 | 1114 |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1115 if (NCH(ch) == 5) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1116 int j, n_ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1117 asdl_seq *ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1118 expr_ty list_for_expr; |
| 35742 | 1119 |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1120 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
|
1121 n_ifs = count_list_ifs(c, ch); |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1122 if (n_ifs == -1) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1123 return NULL; |
| 35742 | 1124 |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1125 ifs = asdl_seq_new(n_ifs, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1126 if (!ifs) |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1127 return NULL; |
| 35742 | 1128 |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1129 for (j = 0; j < n_ifs; j++) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1130 REQ(ch, list_iter); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1131 ch = CHILD(ch, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1132 REQ(ch, list_if); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1133 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1134 list_for_expr = ast_for_expr(c, CHILD(ch, 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1135 if (!list_for_expr) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1136 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1137 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1138 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
|
1139 if (NCH(ch) == 3) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1140 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1141 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1142 /* 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
|
1143 if (TYPE(ch) == list_iter) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1144 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1145 lc->ifs = ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1146 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1147 asdl_seq_SET(listcomps, i, lc); |
| 35742 | 1148 } |
| 1149 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1150 return ListComp(elt, listcomps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1151 } |
| 1152 | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1153 /* Count the number of 'for' loops in a generator expression. |
| 35742 | 1154 |
| 1155 Helper for ast_for_genexp(). | |
| 1156 */ | |
| 1157 | |
| 1158 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
|
1159 count_gen_fors(struct compiling *c, const node *n) |
| 35742 | 1160 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1161 int n_fors = 0; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1162 node *ch = CHILD(n, 1); |
| 35742 | 1163 |
| 1164 count_gen_for: | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1165 n_fors++; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1166 REQ(ch, gen_for); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1167 if (NCH(ch) == 5) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1168 ch = CHILD(ch, 4); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1169 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1170 return n_fors; |
| 35742 | 1171 count_gen_iter: |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1172 REQ(ch, gen_iter); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1173 ch = CHILD(ch, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1174 if (TYPE(ch) == gen_for) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1175 goto count_gen_for; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1176 else if (TYPE(ch) == gen_if) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1177 if (NCH(ch) == 3) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1178 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1179 goto count_gen_iter; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1180 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1181 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1182 return n_fors; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1183 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1184 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1185 /* Should never be reached */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1186 PyErr_SetString(PyExc_SystemError, |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1187 "logic error in count_gen_fors"); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1188 return -1; |
| 35742 | 1189 } |
| 1190 | |
| 1191 /* Count the number of 'if' statements in a generator expression. | |
| 1192 | |
| 1193 Helper for ast_for_genexp(). | |
| 1194 */ | |
| 1195 | |
| 1196 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
|
1197 count_gen_ifs(struct compiling *c, const node *n) |
| 35742 | 1198 { |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1199 int n_ifs = 0; |
| 35742 | 1200 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1201 while (1) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1202 REQ(n, gen_iter); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1203 if (TYPE(CHILD(n, 0)) == gen_for) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1204 return n_ifs; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1205 n = CHILD(n, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1206 REQ(n, gen_if); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1207 n_ifs++; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1208 if (NCH(n) == 2) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1209 return n_ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1210 n = CHILD(n, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1211 } |
| 35742 | 1212 } |
| 1213 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1214 /* TODO(jhylton): Combine with list comprehension code? */ |
| 35742 | 1215 static expr_ty |
| 1216 ast_for_genexp(struct compiling *c, const node *n) | |
| 1217 { | |
| 1218 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1219 argument: [test '='] test [gen_for] # Really [keyword '='] test */ |
| 35742 | 1220 expr_ty elt; |
| 1221 asdl_seq *genexps; | |
| 1222 int i, n_fors; | |
| 1223 node *ch; | |
| 1224 | |
| 1225 assert(TYPE(n) == (testlist_gexp) || TYPE(n) == (argument)); | |
| 1226 assert(NCH(n) > 1); | |
| 1227 | |
| 1228 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1229 if (!elt) | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1230 return NULL; |
| 35742 | 1231 |
|
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
|
1232 n_fors = count_gen_fors(c, n); |
| 35742 | 1233 if (n_fors == -1) |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1234 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
|
1235 |
|
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
|
1236 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
|
1237 if (!genexps) |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1238 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
|
1239 |
| 35742 | 1240 ch = CHILD(n, 1); |
| 1241 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
|
1242 comprehension_ty ge; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1243 asdl_seq *t; |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
1244 expr_ty expression, first; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1245 node *for_ch; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1246 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1247 REQ(ch, gen_for); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1248 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1249 for_ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1250 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
|
1251 if (!t) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1252 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1253 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
|
1254 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1255 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
|
1256 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1257 /* 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
|
1258 (x for x, in ...) has 1 element in t, but still requires a Tuple. */ |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
1259 first = (expr_ty)asdl_seq_GET(t, 0); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1260 if (NCH(for_ch) == 1) |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
1261 ge = comprehension(first, expression, NULL, c->c_arena); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1262 else |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
1263 ge = comprehension(Tuple(t, Store, first->lineno, first->col_offset, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1264 c->c_arena), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1265 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
|
1266 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1267 if (!ge) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1268 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
|
1269 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1270 if (NCH(ch) == 5) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1271 int j, n_ifs; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1272 asdl_seq *ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1273 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1274 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
|
1275 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
|
1276 if (n_ifs == -1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1277 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
|
1278 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1279 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
|
1280 if (!ifs) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1281 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
|
1282 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1283 for (j = 0; j < n_ifs; j++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1284 REQ(ch, gen_iter); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1285 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1286 REQ(ch, gen_if); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1287 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1288 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
|
1289 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1290 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1291 asdl_seq_SET(ifs, j, expression); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1292 if (NCH(ch) == 3) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1293 ch = CHILD(ch, 2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1294 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1295 /* 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
|
1296 if (TYPE(ch) == gen_iter) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1297 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1298 ge->ifs = ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1299 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1300 asdl_seq_SET(genexps, i, ge); |
| 35742 | 1301 } |
| 1302 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1303 return GeneratorExp(elt, genexps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1304 } |
| 1305 | |
| 1306 static expr_ty | |
| 1307 ast_for_atom(struct compiling *c, const node *n) | |
| 1308 { | |
| 1309 /* atom: '(' [yield_expr|testlist_gexp] ')' | '[' [listmaker] ']' | |
| 1310 | '{' [dictmaker] '}' | '`' testlist '`' | NAME | NUMBER | STRING+ | |
| 1311 */ | |
| 1312 node *ch = CHILD(n, 0); | |
| 1313 | |
| 1314 switch (TYPE(ch)) { | |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1315 case NAME: { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1316 /* All names start in Load context, but may later be |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1317 changed. */ |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1318 PyObject *name = NEW_IDENTIFIER(ch); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1319 if (!name) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1320 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1321 return Name(name, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1322 } |
| 35742 | 1323 case STRING: { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1324 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
|
1325 if (!str) { |
|
44572
db5e01c33eb7
Make Python compile with --disable-unicode.
Georg Brandl <georg@python.org>
parents:
43997
diff
changeset
|
1326 #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
|
1327 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
|
1328 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
|
1329 PyErr_Fetch(&type, &value, &tback); |
|
49795
b64d053afd84
don't segfault when \N escapes are used and unicodedata fails to load
Benjamin Peterson <benjamin@python.org>
parents:
49696
diff
changeset
|
1330 errstr = PyObject_Str(value); |
|
42308
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1331 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
|
1332 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
|
1333 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
|
1334 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
|
1335 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
|
1336 ast_error(n, buf); |
|
49795
b64d053afd84
don't segfault when \N escapes are used and unicodedata fails to load
Benjamin Peterson <benjamin@python.org>
parents:
49696
diff
changeset
|
1337 Py_DECREF(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
|
1338 } else { |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1339 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
|
1340 } |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1341 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
|
1342 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
|
1343 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
|
1344 } |
|
44572
db5e01c33eb7
Make Python compile with --disable-unicode.
Georg Brandl <georg@python.org>
parents:
43997
diff
changeset
|
1345 #endif |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1346 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
|
1347 } |
|
41215
72da48d96257
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41205
diff
changeset
|
1348 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1349 return Str(str, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1350 } |
| 1351 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
|
1352 PyObject *pynum = parsenumber(c, STR(ch)); |
|
41215
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41205
diff
changeset
|
1353 if (!pynum) |
|
72da48d96257
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41205
diff
changeset
|
1354 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
|
1355 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1356 PyArena_AddPyObject(c->c_arena, pynum); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1357 return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1358 } |
| 1359 case LPAR: /* some parenthesized expressions */ | |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1360 ch = CHILD(n, 1); |
|
72da48d96257
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41205
diff
changeset
|
1361 |
|
72da48d96257
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41205
diff
changeset
|
1362 if (TYPE(ch) == RPAR) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1363 return Tuple(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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41205
diff
changeset
|
1364 |
|
72da48d96257
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41205
diff
changeset
|
1365 if (TYPE(ch) == yield_expr) |
|
72da48d96257
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41205
diff
changeset
|
1366 return ast_for_expr(c, ch); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1367 |
|
72da48d96257
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parents:
41205
diff
changeset
|
1368 return ast_for_testlist_gexp(c, ch); |
| 35742 | 1369 case LSQB: /* list (or list comprehension) */ |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1370 ch = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1371 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1372 if (TYPE(ch) == RSQB) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1373 return List(NULL, 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
|
1374 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1375 REQ(ch, listmaker); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1376 if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1377 asdl_seq *elts = seq_for_testlist(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1378 if (!elts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1379 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
|
1380 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1381 return List(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
|
1382 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1383 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1384 return ast_for_listcomp(c, ch); |
| 35742 | 1385 case LBRACE: { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1386 /* dictmaker: test ':' test (',' test ':' test)* [','] */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1387 int i, size; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1388 asdl_seq *keys, *values; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1389 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1390 ch = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1391 size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1392 keys = asdl_seq_new(size, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1393 if (!keys) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1394 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1395 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1396 values = asdl_seq_new(size, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1397 if (!values) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1398 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1399 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1400 for (i = 0; i < NCH(ch); i += 4) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1401 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1402 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1403 expression = ast_for_expr(c, CHILD(ch, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1404 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1405 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
|
1406 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1407 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
|
1408 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1409 expression = ast_for_expr(c, CHILD(ch, i + 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1410 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1411 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
|
1412 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1413 asdl_seq_SET(values, i / 4, expression); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1414 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1415 return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1416 } |
| 1417 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
|
1418 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
|
1419 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
|
1420 !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
|
1421 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
|
1422 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
|
1423 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1424 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
|
1425 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1426 return Repr(expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1427 } |
| 1428 default: | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1429 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
|
1430 return NULL; |
| 35742 | 1431 } |
| 1432 } | |
| 1433 | |
| 1434 static slice_ty | |
| 1435 ast_for_slice(struct compiling *c, const node *n) | |
| 1436 { | |
| 1437 node *ch; | |
| 1438 expr_ty lower = NULL, upper = NULL, step = NULL; | |
| 1439 | |
| 1440 REQ(n, subscript); | |
| 1441 | |
| 1442 /* | |
| 1443 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] | |
| 1444 sliceop: ':' [test] | |
| 1445 */ | |
| 1446 ch = CHILD(n, 0); | |
| 1447 if (TYPE(ch) == DOT) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1448 return Ellipsis(c->c_arena); |
| 35742 | 1449 |
| 1450 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
|
1451 /* '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
|
1452 other vars */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1453 step = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1454 if (!step) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1455 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1456 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1457 return Index(step, c->c_arena); |
| 35742 | 1458 } |
| 1459 | |
| 1460 if (TYPE(ch) == test) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1461 lower = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1462 if (!lower) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1463 return NULL; |
| 35742 | 1464 } |
| 1465 | |
| 1466 /* If there's an upper bound it's in the second or third position. */ | |
| 1467 if (TYPE(ch) == COLON) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1468 if (NCH(n) > 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1469 node *n2 = CHILD(n, 1); |
| 35742 | 1470 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1471 if (TYPE(n2) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1472 upper = ast_for_expr(c, n2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1473 if (!upper) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1474 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1475 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1476 } |
| 35742 | 1477 } else if (NCH(n) > 2) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1478 node *n2 = CHILD(n, 2); |
| 35742 | 1479 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1480 if (TYPE(n2) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1481 upper = ast_for_expr(c, n2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1482 if (!upper) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1483 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1484 } |
| 35742 | 1485 } |
| 1486 | |
| 1487 ch = CHILD(n, NCH(n) - 1); | |
| 1488 if (TYPE(ch) == sliceop) { | |
|
55362
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1489 if (NCH(ch) == 1) { |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1490 /* |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1491 This is an extended slice (ie "x[::]") with no expression in the |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1492 step field. We set this literally to "None" in order to |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1493 disambiguate it from x[:]. (The interpreter might have to call |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1494 __getslice__ for x[:], but it must call __getitem__ for x[::].) |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1495 */ |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1496 identifier none = new_identifier("None", c->c_arena); |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1497 if (!none) |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1498 return NULL; |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1499 ch = CHILD(ch, 0); |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1500 step = Name(none, Load, LINENO(ch), ch->n_col_offset, c->c_arena); |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1501 if (!step) |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1502 return NULL; |
|
7bf8fc20037a
the Slice in x[::] has to have step as None to help the interpreter
Benjamin Peterson <benjamin@python.org>
parents:
54743
diff
changeset
|
1503 } else { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1504 ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1505 if (TYPE(ch) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1506 step = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1507 if (!step) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1508 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1509 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1510 } |
| 35742 | 1511 } |
| 1512 | |
|
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
|
1513 return Slice(lower, upper, step, c->c_arena); |
| 35742 | 1514 } |
| 1515 | |
| 1516 static expr_ty | |
| 1517 ast_for_binop(struct compiling *c, const node *n) | |
| 1518 { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1519 /* Must account for a sequence of expressions. |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1520 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
|
1521 BinOp(BinOp(A, op, B), op, C). |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1522 */ |
| 35742 | 1523 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1524 int i, nops; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1525 expr_ty expr1, expr2, result; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1526 operator_ty newoperator; |
| 35742 | 1527 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1528 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
|
1529 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1530 return NULL; |
| 35742 | 1531 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1532 expr2 = ast_for_expr(c, CHILD(n, 2)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1533 if (!expr2) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1534 return NULL; |
| 35742 | 1535 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1536 newoperator = get_operator(CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1537 if (!newoperator) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1538 return NULL; |
| 35742 | 1539 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1540 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
|
1541 c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1542 if (!result) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1543 return NULL; |
| 35742 | 1544 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1545 nops = (NCH(n) - 1) / 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1546 for (i = 1; i < nops; i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1547 expr_ty tmp_result, tmp; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1548 const node* next_oper = CHILD(n, i * 2 + 1); |
| 35742 | 1549 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1550 newoperator = get_operator(next_oper); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1551 if (!newoperator) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1552 return NULL; |
| 35742 | 1553 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1554 tmp = ast_for_expr(c, CHILD(n, i * 2 + 2)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1555 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1556 return NULL; |
| 35742 | 1557 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1558 tmp_result = BinOp(result, newoperator, tmp, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1559 LINENO(next_oper), next_oper->n_col_offset, |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1560 c->c_arena); |
|
43470
995677219a65
Fix Coverity #158: Check the correct variable.
Neal Norwitz <nnorwitz@gmail.com>
parents:
42459
diff
changeset
|
1561 if (!tmp_result) |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1562 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1563 result = tmp_result; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1564 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1565 return result; |
| 35742 | 1566 } |
| 1567 | |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1568 static expr_ty |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1569 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
|
1570 { |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1571 /* trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1572 subscriptlist: subscript (',' subscript)* [','] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1573 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1574 */ |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1575 REQ(n, trailer); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1576 if (TYPE(CHILD(n, 0)) == LPAR) { |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1577 if (NCH(n) == 2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1578 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
|
1579 n->n_col_offset, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1580 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1581 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
|
1582 } |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1583 else if (TYPE(CHILD(n, 0)) == DOT ) { |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1584 PyObject *attr_id = NEW_IDENTIFIER(CHILD(n, 1)); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1585 if (!attr_id) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1586 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
1587 return Attribute(left_expr, attr_id, Load, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1588 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
|
1589 } |
|
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1590 else { |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1591 REQ(CHILD(n, 0), LSQB); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1592 REQ(CHILD(n, 2), RSQB); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1593 n = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1594 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1595 slice_ty slc = ast_for_slice(c, CHILD(n, 0)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1596 if (!slc) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1597 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1598 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
|
1599 c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1600 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1601 else { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1602 /* The grammar is ambiguous here. The ambiguity is resolved |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1603 by treating the sequence as a tuple literal if there are |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1604 no slice features. |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1605 */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1606 int j; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1607 slice_ty slc; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1608 expr_ty e; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1609 bool simple = true; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1610 asdl_seq *slices, *elts; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1611 slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1612 if (!slices) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1613 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1614 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
|
1615 slc = ast_for_slice(c, CHILD(n, j)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1616 if (!slc) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1617 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1618 if (slc->kind != Index_kind) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1619 simple = false; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1620 asdl_seq_SET(slices, j / 2, slc); |
|
72da48d96257
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41205
diff
changeset
|
1621 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1622 if (!simple) { |
|
72da48d96257
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parents:
41205
diff
changeset
|
1623 return Subscript(left_expr, ExtSlice(slices, c->c_arena), |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1624 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1625 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1626 /* extract Index values and put them in a Tuple */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1627 elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1628 if (!elts) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1629 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1630 for (j = 0; j < asdl_seq_LEN(slices); ++j) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1631 slc = (slice_ty)asdl_seq_GET(slices, j); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1632 assert(slc->kind == Index_kind && slc->v.Index.value); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1633 asdl_seq_SET(elts, j, slc->v.Index.value); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1634 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1635 e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1636 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1637 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1638 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
|
1639 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
|
1640 } |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1641 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1642 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1643 |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1644 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
|
1645 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
|
1646 { |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1647 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
|
1648 expr_ty expression; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1649 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1650 /* 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
|
1651 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
|
1652 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
|
1653 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
|
1654 (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
|
1655 PyLongObject. |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1656 */ |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1657 if (TYPE(CHILD(n, 0)) == MINUS && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1658 NCH(n) == 2 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1659 TYPE((pfactor = CHILD(n, 1))) == factor && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1660 NCH(pfactor) == 1 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1661 TYPE((ppower = CHILD(pfactor, 0))) == power && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1662 NCH(ppower) == 1 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1663 TYPE((patom = CHILD(ppower, 0))) == atom && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1664 TYPE((pnum = CHILD(patom, 0))) == NUMBER) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1665 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
|
1666 if (s == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1667 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1668 s[0] = '-'; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1669 strcpy(s + 1, STR(pnum)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1670 PyObject_FREE(STR(pnum)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1671 STR(pnum) = s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1672 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
|
1673 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1674 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1675 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
|
1676 if (!expression) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1677 return NULL; |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1678 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1679 switch (TYPE(CHILD(n, 0))) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1680 case PLUS: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1681 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
|
1682 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1683 case MINUS: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1684 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
|
1685 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1686 case TILDE: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1687 return UnaryOp(Invert, expression, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1688 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
|
1689 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1690 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
|
1691 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
|
1692 return NULL; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1693 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1694 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1695 static expr_ty |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1696 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
|
1697 { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1698 /* power: atom trailer* ('**' factor)* |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1699 */ |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1700 int i; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1701 expr_ty e, tmp; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1702 REQ(n, power); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1703 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
|
1704 if (!e) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1705 return NULL; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1706 if (NCH(n) == 1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1707 return e; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1708 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
|
1709 node *ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1710 if (TYPE(ch) != trailer) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1711 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1712 tmp = ast_for_trailer(c, ch, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1713 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1714 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1715 tmp->lineno = e->lineno; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1716 tmp->col_offset = e->col_offset; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1717 e = tmp; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1718 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1719 if (TYPE(CHILD(n, NCH(n) - 1)) == factor) { |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1720 expr_ty f = ast_for_expr(c, CHILD(n, NCH(n) - 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1721 if (!f) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1722 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1723 tmp = BinOp(e, Pow, f, LINENO(n), 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
|
1724 if (!tmp) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1725 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1726 e = tmp; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1727 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1728 return e; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1729 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1730 |
| 35742 | 1731 /* Do not name a variable 'expr'! Will cause a compile error. |
| 1732 */ | |
| 1733 | |
| 1734 static expr_ty | |
| 1735 ast_for_expr(struct compiling *c, const node *n) | |
| 1736 { | |
| 1737 /* 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
|
1738 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
|
1739 or_test: and_test ('or' and_test)* |
| 35742 | 1740 and_test: not_test ('and' not_test)* |
| 1741 not_test: 'not' not_test | comparison | |
| 1742 comparison: expr (comp_op expr)* | |
| 1743 expr: xor_expr ('|' xor_expr)* | |
| 1744 xor_expr: and_expr ('^' and_expr)* | |
| 1745 and_expr: shift_expr ('&' shift_expr)* | |
| 1746 shift_expr: arith_expr (('<<'|'>>') arith_expr)* | |
| 1747 arith_expr: term (('+'|'-') term)* | |
| 1748 term: factor (('*'|'/'|'%'|'//') factor)* | |
| 1749 factor: ('+'|'-'|'~') factor | power | |
| 1750 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
|
1751 |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1752 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
|
1753 to explicitly allow: |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1754 [ 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
|
1755 (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
|
1756 |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1757 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
|
1758 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
|
1759 |
| 35742 | 1760 */ |
| 1761 | |
| 1762 asdl_seq *seq; | |
| 1763 int i; | |
| 1764 | |
| 1765 loop: | |
| 1766 switch (TYPE(n)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1767 case test: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1768 case old_test: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1769 if (TYPE(CHILD(n, 0)) == lambdef || |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1770 TYPE(CHILD(n, 0)) == old_lambdef) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1771 return ast_for_lambdef(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1772 else if (NCH(n) > 1) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1773 return ast_for_ifexpr(c, n); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1774 /* Fallthrough */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1775 case or_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1776 case and_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1777 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1778 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1779 goto loop; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1780 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1781 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1782 if (!seq) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1783 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1784 for (i = 0; i < NCH(n); i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1785 expr_ty e = ast_for_expr(c, CHILD(n, i)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1786 if (!e) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1787 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1788 asdl_seq_SET(seq, i / 2, e); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1789 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1790 if (!strcmp(STR(CHILD(n, 1)), "and")) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1791 return BoolOp(And, seq, LINENO(n), n->n_col_offset, |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1792 c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1793 assert(!strcmp(STR(CHILD(n, 1)), "or")); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1794 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>
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41205
diff
changeset
|
1795 case not_test: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1796 if (NCH(n) == 1) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1797 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1798 goto loop; |
|
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>
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41205
diff
changeset
|
1800 else { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1801 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1802 if (!expression) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1803 return NULL; |
| 35742 | 1804 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1805 return UnaryOp(Not, expression, LINENO(n), n->n_col_offset, |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1806 c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1807 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1808 case comparison: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1809 if (NCH(n) == 1) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1810 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1811 goto loop; |
|
72da48d96257
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41205
diff
changeset
|
1812 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1813 else { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1814 expr_ty expression; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1815 asdl_int_seq *ops; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1816 asdl_seq *cmps; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1817 ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1818 if (!ops) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1819 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1820 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
|
1821 if (!cmps) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1824 for (i = 1; i < NCH(n); i += 2) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1825 cmpop_ty newoperator; |
| 35742 | 1826 |
|
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
|
1827 newoperator = ast_for_comp_op(c, CHILD(n, i)); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1828 if (!newoperator) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1829 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1830 } |
| 35742 | 1831 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1832 expression = ast_for_expr(c, CHILD(n, i + 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1833 if (!expression) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1834 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1835 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1836 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1837 asdl_seq_SET(ops, i / 2, newoperator); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1838 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
|
1839 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1840 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
|
1841 if (!expression) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1842 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1843 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1844 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1845 return Compare(expression, ops, cmps, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1846 n->n_col_offset, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1847 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1848 break; |
| 35742 | 1849 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1850 /* The next five cases all handle BinOps. The main body of code |
|
72da48d96257
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41205
diff
changeset
|
1851 is the same in each case, but the switch turned inside out to |
|
72da48d96257
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41205
diff
changeset
|
1852 reuse the code for each type of operator. |
|
72da48d96257
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41205
diff
changeset
|
1853 */ |
|
72da48d96257
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41205
diff
changeset
|
1854 case expr: |
|
72da48d96257
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41205
diff
changeset
|
1855 case xor_expr: |
|
72da48d96257
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41205
diff
changeset
|
1856 case and_expr: |
|
72da48d96257
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41205
diff
changeset
|
1857 case shift_expr: |
|
72da48d96257
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41205
diff
changeset
|
1858 case arith_expr: |
|
72da48d96257
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41205
diff
changeset
|
1859 case term: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1860 if (NCH(n) == 1) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1861 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1862 goto loop; |
|
72da48d96257
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41205
diff
changeset
|
1863 } |
|
72da48d96257
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41205
diff
changeset
|
1864 return ast_for_binop(c, n); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1865 case yield_expr: { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1866 expr_ty exp = NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1867 if (NCH(n) == 2) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1868 exp = ast_for_testlist(c, CHILD(n, 1)); |
|
72da48d96257
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41205
diff
changeset
|
1869 if (!exp) |
|
72da48d96257
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41205
diff
changeset
|
1870 return NULL; |
|
72da48d96257
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41205
diff
changeset
|
1871 } |
|
72da48d96257
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parents:
41205
diff
changeset
|
1872 return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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41205
diff
changeset
|
1873 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1874 case factor: |
|
72da48d96257
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41205
diff
changeset
|
1875 if (NCH(n) == 1) { |
|
72da48d96257
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41205
diff
changeset
|
1876 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1877 goto loop; |
|
72da48d96257
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41205
diff
changeset
|
1878 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1879 return ast_for_factor(c, n); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1880 case power: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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1881 return ast_for_power(c, n); |
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1882 default: |
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1883 PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n)); |
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1884 return NULL; |
| 35742 | 1885 } |
|
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1886 /* should never get here unless if error is set */ |
| 35742 | 1887 return NULL; |
| 1888 } | |
| 1889 | |
| 1890 static expr_ty | |
| 1891 ast_for_call(struct compiling *c, const node *n, expr_ty func) | |
| 1892 { | |
| 1893 /* | |
| 1894 arglist: (argument ',')* (argument [',']| '*' test [',' '**' test] | |
|
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1895 | '**' test) |
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1896 argument: [test '='] test [gen_for] # Really [keyword '='] test |
| 35742 | 1897 */ |
| 1898 | |
| 1899 int i, nargs, nkeywords, ngens; | |
|
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1900 asdl_seq *args; |
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1901 asdl_seq *keywords; |
| 35742 | 1902 expr_ty vararg = NULL, kwarg = NULL; |
| 1903 | |
| 1904 REQ(n, arglist); | |
| 1905 | |
| 1906 nargs = 0; | |
| 1907 nkeywords = 0; | |
| 1908 ngens = 0; | |
| 1909 for (i = 0; i < NCH(n); i++) { | |
|
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1910 node *ch = CHILD(n, i); |
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1911 if (TYPE(ch) == argument) { |
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1912 if (NCH(ch) == 1) |
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1913 nargs++; |
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1914 else if (TYPE(CHILD(ch, 1)) == gen_for) |
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1915 ngens++; |
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1916 else |
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1917 nkeywords++; |
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1918 } |
| 35742 | 1919 } |
| 1920 if (ngens > 1 || (ngens && (nargs || nkeywords))) { | |
|
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1921 ast_error(n, "Generator expression must be parenthesized " |
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1922 "if not sole argument"); |
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1923 return NULL; |
| 35742 | 1924 } |
| 1925 | |
| 1926 if (nargs + nkeywords + ngens > 255) { | |
| 1927 ast_error(n, "more than 255 arguments"); | |
| 1928 return NULL; | |
| 1929 } | |
| 1930 | |
|
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1931 args = asdl_seq_new(nargs + ngens, c->c_arena); |
| 35742 | 1932 if (!args) |
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1933 return NULL; |
|
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1934 keywords = asdl_seq_new(nkeywords, c->c_arena); |
| 35742 | 1935 if (!keywords) |
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1936 return NULL; |
| 35742 | 1937 nargs = 0; |
| 1938 nkeywords = 0; | |
| 1939 for (i = 0; i < NCH(n); i++) { | |
|
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1940 node *ch = CHILD(n, i); |
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1941 if (TYPE(ch) == argument) { |
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1942 expr_ty e; |
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1943 if (NCH(ch) == 1) { |
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1944 if (nkeywords) { |
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1945 ast_error(CHILD(ch, 0), |
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1946 "non-keyword arg after keyword arg"); |
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1947 return NULL; |
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1948 } |
|
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1949 if (vararg) { |
|
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1950 ast_error(CHILD(ch, 0), |
|
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1951 "only named arguments may follow *expression"); |
|
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1952 return NULL; |
|
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1953 } |
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1954 e = ast_for_expr(c, CHILD(ch, 0)); |
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1955 if (!e) |
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1956 return NULL; |
|
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1957 asdl_seq_SET(args, nargs++, e); |
|
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1958 } |
|
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1959 else if (TYPE(CHILD(ch, 1)) == gen_for) { |
|
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1960 e = ast_for_genexp(c, ch); |
|
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1961 if (!e) |
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1962 return NULL; |
|
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1963 asdl_seq_SET(args, nargs++, e); |
|
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1964 } |
|
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1965 else { |
|
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1966 keyword_ty kw; |
|
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1967 identifier key; |
|
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1968 int k; |
|
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|
1969 char *tmp; |
| 35742 | 1970 |
|
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1971 /* CHILD(ch, 0) is test, but must be an identifier? */ |
|
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1972 e = ast_for_expr(c, CHILD(ch, 0)); |
|
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1973 if (!e) |
|
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1974 return NULL; |
|
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1975 /* f(lambda x: x[0] = 3) ends up getting parsed with |
|
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1976 * LHS test = lambda x: x[0], and RHS test = 3. |
|
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1977 * SF bug 132313 points out that complaining about a keyword |
|
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1978 * then is very confusing. |
|
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|
1979 */ |
|
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|
1980 if (e->kind == Lambda_kind) { |
|
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|
1981 ast_error(CHILD(ch, 0), |
|
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|
1982 "lambda cannot contain assignment"); |
|
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|
1983 return NULL; |
|
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|
1984 } else if (e->kind != Name_kind) { |
|
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1985 ast_error(CHILD(ch, 0), "keyword can't be an expression"); |
|
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1986 return NULL; |
|
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|
1987 } |
|
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|
1988 key = e->v.Name.id; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
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parents:
47521
diff
changeset
|
1989 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>
parents:
41773
diff
changeset
|
1990 return NULL; |
|
47860
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1991 for (k = 0; k < nkeywords; k++) { |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1992 tmp = PyString_AS_STRING( |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1993 ((keyword_ty)asdl_seq_GET(keywords, k))->arg); |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1994 if (!strcmp(tmp, PyString_AS_STRING(key))) { |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1995 ast_error(CHILD(ch, 0), "keyword argument repeated"); |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1996 return NULL; |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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parents:
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diff
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|
1997 } |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1998 } |
|
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1999 e = ast_for_expr(c, CHILD(ch, 2)); |
|
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2000 if (!e) |
|
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|
2001 return NULL; |
|
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|
2002 kw = keyword(key, e, c->c_arena); |
|
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|
2003 if (!kw) |
|
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|
2004 return NULL; |
|
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|
2005 asdl_seq_SET(keywords, nkeywords++, kw); |
|
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|
2006 } |
|
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|
2007 } |
|
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|
2008 else if (TYPE(ch) == STAR) { |
|
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|
2009 vararg = ast_for_expr(c, CHILD(n, i+1)); |
|
45661
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
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parents:
45447
diff
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|
2010 if (!vararg) |
|
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
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|
2011 return NULL; |
|
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|
2012 i++; |
|
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|
2013 } |
|
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|
2014 else if (TYPE(ch) == DOUBLESTAR) { |
|
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|
2015 kwarg = ast_for_expr(c, CHILD(n, i+1)); |
|
45661
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|
2016 if (!kwarg) |
|
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
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|
2017 return NULL; |
|
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|
2018 i++; |
|
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|
2019 } |
| 35742 | 2020 } |
| 2021 | |
|
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|
2022 return Call(func, args, keywords, vararg, kwarg, func->lineno, |
|
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|
2023 func->col_offset, c->c_arena); |
| 35742 | 2024 } |
| 2025 | |
| 2026 static expr_ty | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2027 ast_for_testlist(struct compiling *c, const node* n) |
| 35742 | 2028 { |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2029 /* testlist_gexp: test (',' test)* [','] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2030 /* testlist: test (',' test)* [','] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2031 /* testlist_safe: test (',' test)+ [','] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2032 /* testlist1: test (',' test)* */ |
| 35742 | 2033 assert(NCH(n) > 0); |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2034 if (TYPE(n) == testlist_gexp) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2035 if (NCH(n) > 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2036 assert(TYPE(CHILD(n, 1)) != gen_for); |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2037 } |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2038 else { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2039 assert(TYPE(n) == testlist || |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2040 TYPE(n) == testlist_safe || |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2041 TYPE(n) == testlist1); |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2042 } |
| 35742 | 2043 if (NCH(n) == 1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2044 return ast_for_expr(c, CHILD(n, 0)); |
| 35742 | 2045 else { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2046 asdl_seq *tmp = seq_for_testlist(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2047 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2048 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2049 return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2050 } |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2051 } |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2052 |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2053 static expr_ty |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2054 ast_for_testlist_gexp(struct compiling *c, const node* n) |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2055 { |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2056 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2057 /* argument: test [ gen_for ] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2058 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
|
2059 if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == gen_for) |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
2060 return ast_for_genexp(c, n); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2061 return ast_for_testlist(c, n); |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2062 } |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2063 |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2064 /* like ast_for_testlist() but returns a sequence */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2065 static asdl_seq* |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2066 ast_for_class_bases(struct compiling *c, const node* n) |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2067 { |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2068 /* testlist: test (',' test)* [','] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2069 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
|
2070 REQ(n, testlist); |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2071 if (NCH(n) == 1) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2072 expr_ty base; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2073 asdl_seq *bases = asdl_seq_new(1, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2074 if (!bases) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2075 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
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|
2076 base = ast_for_expr(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2077 if (!base) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2078 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2079 asdl_seq_SET(bases, 0, base); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2080 return bases; |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2081 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2082 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2083 return seq_for_testlist(c, n); |
| 35742 | 2084 } |
| 2085 | |
| 2086 static stmt_ty | |
| 2087 ast_for_expr_stmt(struct compiling *c, const node *n) | |
| 2088 { | |
| 2089 REQ(n, expr_stmt); | |
| 2090 /* 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
|
2091 | ('=' (yield_expr|testlist))*) |
| 35742 | 2092 testlist: test (',' test)* [','] |
| 2093 augassign: '+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^=' | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2094 | '<<=' | '>>=' | '**=' | '//=' |
| 35742 | 2095 test: ... here starts the operator precendence dance |
| 2096 */ | |
| 2097 | |
| 2098 if (NCH(n) == 1) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2099 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
|
2100 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2101 return NULL; |
| 35742 | 2102 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2103 return Expr(e, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2104 } |
| 2105 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
|
2106 expr_ty expr1, expr2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2107 operator_ty newoperator; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2108 node *ch = CHILD(n, 0); |
| 35742 | 2109 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2110 expr1 = ast_for_testlist(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2111 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2112 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
|
2113 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
|
2114 return NULL; |
|
56361
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2115 /* set_context checks that most expressions are not the left side. |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2116 Augmented assignments can only have a name, a subscript, or an |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2117 attribute on the left, though, so we have to explicitly check for |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2118 those. */ |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2119 switch (expr1->kind) { |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2120 case Name_kind: |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2121 case Attribute_kind: |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2122 case Subscript_kind: |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2123 break; |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2124 default: |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2125 ast_error(ch, "illegal expression for augmented assignment"); |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2126 return NULL; |
|
cceb62eb1cf1
#7050 fix a SystemError when using tuple unpacking and augmented assignment
Benjamin Peterson <benjamin@python.org>
parents:
55651
diff
changeset
|
2127 } |
| 35742 | 2128 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2129 ch = CHILD(n, 2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2130 if (TYPE(ch) == testlist) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2131 expr2 = ast_for_testlist(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2132 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2133 expr2 = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
2134 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2135 return NULL; |
| 35742 | 2136 |
|
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
|
2137 newoperator = ast_for_augassign(c, CHILD(n, 1)); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
2138 if (!newoperator) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2139 return NULL; |
| 35742 | 2140 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2141 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
|
2142 c->c_arena); |
| 35742 | 2143 } |
| 2144 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2145 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2146 asdl_seq *targets; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2147 node *value; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2148 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2149 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2150 /* a normal assignment */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2151 REQ(CHILD(n, 1), EQUAL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2152 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
|
2153 if (!targets) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2154 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2155 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
|
2156 expr_ty e; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2157 node *ch = CHILD(n, i); |
| 54689 | 2158 if (TYPE(ch) == yield_expr) { |
| 2159 ast_error(ch, "assignment to yield expression not possible"); | |
| 2160 return NULL; | |
| 2161 } | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2162 e = ast_for_testlist(c, ch); |
| 35742 | 2163 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2164 /* set context to assign */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2165 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2166 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2167 |
|
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
|
2168 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
|
2169 return NULL; |
| 35742 | 2170 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2171 asdl_seq_SET(targets, i / 2, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2172 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2173 value = CHILD(n, NCH(n) - 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2174 if (TYPE(value) == testlist) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2175 expression = ast_for_testlist(c, value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2176 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2177 expression = ast_for_expr(c, value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2178 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2179 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2180 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
|
2181 c->c_arena); |
| 35742 | 2182 } |
| 2183 } | |
| 2184 | |
| 2185 static stmt_ty | |
| 2186 ast_for_print_stmt(struct compiling *c, const node *n) | |
| 2187 { | |
| 2188 /* print_stmt: 'print' ( [ test (',' test)* [','] ] | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2189 | '>>' test [ (',' test)+ [','] ] ) |
| 35742 | 2190 */ |
| 2191 expr_ty dest = NULL, expression; | |
|
54741
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2192 asdl_seq *seq = NULL; |
| 35742 | 2193 bool nl; |
|
54741
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2194 int i, j, values_count, start = 1; |
| 35742 | 2195 |
| 2196 REQ(n, print_stmt); | |
| 2197 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
|
2198 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
|
2199 if (!dest) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2200 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2201 start = 4; |
| 35742 | 2202 } |
|
54741
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2203 values_count = (NCH(n) + 1 - start) / 2; |
|
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2204 if (values_count) { |
|
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2205 seq = asdl_seq_new(values_count, c->c_arena); |
|
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2206 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2207 return NULL; |
|
54741
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2208 for (i = start, j = 0; i < NCH(n); i += 2, ++j) { |
|
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2209 expression = ast_for_expr(c, CHILD(n, i)); |
|
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2210 if (!expression) |
|
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2211 return NULL; |
|
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2212 asdl_seq_SET(seq, j, expression); |
|
cb66473cbbf8
set Print.values to NULL if there are no values
Benjamin Peterson <benjamin@python.org>
parents:
54732
diff
changeset
|
2213 } |
| 35742 | 2214 } |
| 2215 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
|
2216 return Print(dest, seq, nl, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2217 } |
| 2218 | |
| 2219 static asdl_seq * | |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
2220 ast_for_exprlist(struct compiling *c, const node *n, expr_context_ty context) |
| 35742 | 2221 { |
| 2222 asdl_seq *seq; | |
| 2223 int i; | |
| 2224 expr_ty e; | |
| 2225 | |
| 2226 REQ(n, exprlist); | |
| 2227 | |
|
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
|
2228 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 2229 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2230 return NULL; |
| 35742 | 2231 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
|
2232 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
|
2233 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2234 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2235 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
|
2236 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
|
2237 return NULL; |
| 35742 | 2238 } |
| 2239 return seq; | |
| 2240 } | |
| 2241 | |
| 2242 static stmt_ty | |
| 2243 ast_for_del_stmt(struct compiling *c, const node *n) | |
| 2244 { | |
| 2245 asdl_seq *expr_list; | |
| 2246 | |
| 2247 /* del_stmt: 'del' exprlist */ | |
| 2248 REQ(n, del_stmt); | |
| 2249 | |
| 2250 expr_list = ast_for_exprlist(c, CHILD(n, 1), Del); | |
| 2251 if (!expr_list) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2252 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2253 return Delete(expr_list, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2254 } |
| 2255 | |
| 2256 static stmt_ty | |
| 2257 ast_for_flow_stmt(struct compiling *c, const node *n) | |
| 2258 { | |
| 2259 /* | |
| 2260 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
|
2261 | yield_stmt |
| 35742 | 2262 break_stmt: 'break' |
| 2263 continue_stmt: 'continue' | |
| 2264 return_stmt: 'return' [testlist] | |
| 2265 yield_stmt: yield_expr | |
| 2266 yield_expr: 'yield' testlist | |
| 2267 raise_stmt: 'raise' [test [',' test [',' test]]] | |
| 2268 */ | |
| 2269 node *ch; | |
| 2270 | |
| 2271 REQ(n, flow_stmt); | |
| 2272 ch = CHILD(n, 0); | |
| 2273 switch (TYPE(ch)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2274 case break_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2275 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
|
2276 case continue_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2277 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
|
2278 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
|
2279 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
|
2280 if (!exp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2281 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2282 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
|
2283 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2284 case return_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2285 if (NCH(ch) == 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2286 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
|
2287 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2288 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
|
2289 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2290 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2291 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
|
2292 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2293 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2294 case raise_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2295 if (NCH(ch) == 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2296 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
|
2297 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2298 else if (NCH(ch) == 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2299 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
|
2300 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2301 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2302 return Raise(expression, NULL, NULL, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2303 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2304 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2305 else if (NCH(ch) == 4) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2306 expr_ty expr1, expr2; |
| 35742 | 2307 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2308 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
|
2309 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2310 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2311 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
|
2312 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2313 return NULL; |
| 35742 | 2314 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2315 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
|
2316 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2317 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2318 else if (NCH(ch) == 6) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2319 expr_ty expr1, expr2, expr3; |
| 35742 | 2320 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2321 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
|
2322 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2323 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2324 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
|
2325 if (!expr2) |
|
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 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
|
2328 if (!expr3) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2329 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2330 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2331 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
|
2332 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2333 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2334 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2335 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2336 "unexpected flow_stmt: %d", TYPE(ch)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2337 return NULL; |
| 35742 | 2338 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2339 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2340 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
|
2341 return NULL; |
| 35742 | 2342 } |
| 2343 | |
| 2344 static alias_ty | |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2345 alias_for_import_name(struct compiling *c, const node *n, int store) |
| 35742 | 2346 { |
| 2347 /* | |
|
36742
658f8ff2a442
Make 'as' an actual keyword when with's future statement is used. Not
Thomas Wouters <thomas@python.org>
parents:
36718
diff
changeset
|
2348 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
|
2349 dotted_as_name: dotted_name ['as' NAME] |
| 35742 | 2350 dotted_name: NAME ('.' NAME)* |
| 2351 */ | |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2352 PyObject *str, *name; |
|
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
|
2353 |
| 35742 | 2354 loop: |
| 2355 switch (TYPE(n)) { | |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2356 case import_as_name: { |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2357 node *name_node = CHILD(n, 0); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2358 str = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2359 if (NCH(n) == 3) { |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2360 node *str_node = CHILD(n, 2); |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2361 if (store && !forbidden_check(c, str_node, STR(str_node))) |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2362 return NULL; |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2363 str = NEW_IDENTIFIER(str_node); |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2364 if (!str) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2365 return NULL; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2366 } |
|
54732
04ccec0441b2
allow importing from a module named None if it has an 'as' clause
Benjamin Peterson <benjamin@python.org>
parents:
54728
diff
changeset
|
2367 else { |
|
04ccec0441b2
allow importing from a module named None if it has an 'as' clause
Benjamin Peterson <benjamin@python.org>
parents:
54728
diff
changeset
|
2368 if (!forbidden_check(c, name_node, STR(name_node))) |
|
04ccec0441b2
allow importing from a module named None if it has an 'as' clause
Benjamin Peterson <benjamin@python.org>
parents:
54728
diff
changeset
|
2369 return NULL; |
|
04ccec0441b2
allow importing from a module named None if it has an 'as' clause
Benjamin Peterson <benjamin@python.org>
parents:
54728
diff
changeset
|
2370 } |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2371 name = NEW_IDENTIFIER(name_node); |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2372 if (!name) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2373 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2374 return alias(name, str, c->c_arena); |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2375 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2376 case dotted_as_name: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2377 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2378 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2379 goto loop; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2380 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2381 else { |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2382 node *asname_node = CHILD(n, 2); |
|
54732
04ccec0441b2
allow importing from a module named None if it has an 'as' clause
Benjamin Peterson <benjamin@python.org>
parents:
54728
diff
changeset
|
2383 alias_ty a = alias_for_import_name(c, CHILD(n, 0), 0); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2384 if (!a) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2385 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2386 assert(!a->asname); |
|
54732
04ccec0441b2
allow importing from a module named None if it has an 'as' clause
Benjamin Peterson <benjamin@python.org>
parents:
54728
diff
changeset
|
2387 if (!forbidden_check(c, asname_node, STR(asname_node))) |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2388 return NULL; |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2389 a->asname = NEW_IDENTIFIER(asname_node); |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2390 if (!a->asname) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2391 return NULL; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2392 return a; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2393 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2394 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2395 case dotted_name: |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2396 if (NCH(n) == 1) { |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2397 node *name_node = CHILD(n, 0); |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2398 if (store && !forbidden_check(c, name_node, STR(name_node))) |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2399 return NULL; |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2400 name = NEW_IDENTIFIER(name_node); |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2401 if (!name) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2402 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2403 return alias(name, NULL, c->c_arena); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
2404 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2405 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2406 /* 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
|
2407 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2408 size_t len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2409 char *s; |
| 35742 | 2410 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2411 len = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2412 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
|
2413 /* 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
|
2414 len += strlen(STR(CHILD(n, i))) + 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2415 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
|
2416 str = PyString_FromStringAndSize(NULL, len); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2417 if (!str) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2418 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
|
2419 s = PyString_AS_STRING(str); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2420 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2421 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2422 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
|
2423 char *sch = STR(CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2424 strcpy(s, STR(CHILD(n, i))); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2425 s += strlen(sch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2426 *s++ = '.'; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2427 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2428 --s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2429 *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
|
2430 PyString_InternInPlace(&str); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2431 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2432 return alias(str, NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2433 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2434 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2435 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
|
2436 str = PyString_InternFromString("*"); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2437 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2438 return alias(str, NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2439 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2440 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2441 "unexpected import name: %d", TYPE(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2442 return NULL; |
| 35742 | 2443 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2444 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2445 PyErr_SetString(PyExc_SystemError, "unhandled import name condition"); |
| 35742 | 2446 return NULL; |
| 2447 } | |
| 2448 | |
| 2449 static stmt_ty | |
| 2450 ast_for_import_stmt(struct compiling *c, const node *n) | |
| 2451 { | |
| 2452 /* | |
| 2453 import_stmt: import_name | import_from | |
| 2454 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
|
2455 import_from: 'from' ('.'* dotted_name | '.') 'import' |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2456 ('*' | '(' import_as_names ')' | import_as_names) |
| 35742 | 2457 */ |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2458 int lineno; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2459 int col_offset; |
| 35742 | 2460 int i; |
| 2461 asdl_seq *aliases; | |
| 2462 | |
| 2463 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
|
2464 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2465 col_offset = n->n_col_offset; |
| 35742 | 2466 n = CHILD(n, 0); |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2467 if (TYPE(n) == import_name) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2468 n = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2469 REQ(n, dotted_as_names); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2470 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
|
2471 if (!aliases) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2472 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2473 for (i = 0; i < NCH(n); i += 2) { |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2474 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i), 1); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2475 if (!import_alias) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2476 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2477 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
|
2478 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2479 return Import(aliases, lineno, col_offset, c->c_arena); |
| 35742 | 2480 } |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2481 else if (TYPE(n) == import_from) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2482 int n_children; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2483 int idx, ndots = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2484 alias_ty mod = NULL; |
|
54743
40c8c35492f1
when no module is given in a 'from' relative import, make ImportFrom.module NULL
Benjamin Peterson <benjamin@python.org>
parents:
54742
diff
changeset
|
2485 identifier modname = NULL; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2486 |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2487 /* 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
|
2488 optional module name */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2489 for (idx = 1; idx < NCH(n); idx++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2490 if (TYPE(CHILD(n, idx)) == dotted_name) { |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2491 mod = alias_for_import_name(c, CHILD(n, idx), 0); |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2492 if (!mod) |
|
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2493 return NULL; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2494 idx++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2495 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2496 } else if (TYPE(CHILD(n, idx)) != DOT) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2497 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2498 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2499 ndots++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2500 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2501 idx++; /* skip over the 'import' keyword */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2502 switch (TYPE(CHILD(n, idx))) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2503 case STAR: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2504 /* from ... import * */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2505 n = CHILD(n, idx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2506 n_children = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2507 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2508 case LPAR: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2509 /* from ... import (x, y, z) */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2510 n = CHILD(n, idx + 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2511 n_children = NCH(n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2512 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2513 case import_as_names: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2514 /* from ... import x, y, z */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2515 n = CHILD(n, idx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2516 n_children = NCH(n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2517 if (n_children % 2 == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2518 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
|
2519 " surrounding parentheses"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2520 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2521 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2522 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2523 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2524 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
|
2525 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2526 } |
| 35742 | 2527 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2528 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
|
2529 if (!aliases) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2530 return NULL; |
| 35742 | 2531 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2532 /* 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
|
2533 if (TYPE(n) == STAR) { |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2534 alias_ty import_alias = alias_for_import_name(c, n, 1); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2535 if (!import_alias) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2536 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2537 asdl_seq_SET(aliases, 0, import_alias); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2538 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2539 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2540 for (i = 0; i < NCH(n); i += 2) { |
|
54728
788e1397ce77
prevent import statements from assigning to None
Benjamin Peterson <benjamin@python.org>
parents:
54727
diff
changeset
|
2541 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i), 1); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2542 if (!import_alias) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2543 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2544 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
|
2545 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2546 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2547 if (mod != NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2548 modname = mod->name; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2549 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
|
2550 c->c_arena); |
| 35742 | 2551 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2552 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2553 "unknown import statement: starts with command '%s'", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2554 STR(CHILD(n, 0))); |
| 35742 | 2555 return NULL; |
| 2556 } | |
| 2557 | |
| 2558 static stmt_ty | |
| 2559 ast_for_global_stmt(struct compiling *c, const node *n) | |
| 2560 { | |
| 2561 /* global_stmt: 'global' NAME (',' NAME)* */ | |
| 2562 identifier name; | |
| 2563 asdl_seq *s; | |
| 2564 int i; | |
| 2565 | |
| 2566 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
|
2567 s = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 2568 if (!s) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2569 return NULL; |
| 35742 | 2570 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
|
2571 name = NEW_IDENTIFIER(CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2572 if (!name) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2573 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2574 asdl_seq_SET(s, i / 2, name); |
| 35742 | 2575 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2576 return Global(s, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2577 } |
| 2578 | |
| 2579 static stmt_ty | |
| 2580 ast_for_exec_stmt(struct compiling *c, const node *n) | |
| 2581 { | |
| 2582 expr_ty expr1, globals = NULL, locals = NULL; | |
| 2583 int n_children = NCH(n); | |
| 2584 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
|
2585 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2586 "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
|
2587 n_children); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2588 return NULL; |
| 35742 | 2589 } |
| 2590 | |
| 2591 /* exec_stmt: 'exec' expr ['in' test [',' test]] */ | |
| 2592 REQ(n, exec_stmt); | |
| 2593 expr1 = ast_for_expr(c, CHILD(n, 1)); | |
| 2594 if (!expr1) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2595 return NULL; |
| 35742 | 2596 if (n_children >= 4) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2597 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
|
2598 if (!globals) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2599 return NULL; |
| 35742 | 2600 } |
| 2601 if (n_children == 6) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2602 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
|
2603 if (!locals) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2604 return NULL; |
| 35742 | 2605 } |
| 2606 | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2607 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
|
2608 c->c_arena); |
| 35742 | 2609 } |
| 2610 | |
| 2611 static stmt_ty | |
| 2612 ast_for_assert_stmt(struct compiling *c, const node *n) | |
| 2613 { | |
| 2614 /* assert_stmt: 'assert' test [',' test] */ | |
| 2615 REQ(n, assert_stmt); | |
| 2616 if (NCH(n) == 2) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2617 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
|
2618 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2619 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2620 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
|
2621 c->c_arena); |
| 35742 | 2622 } |
| 2623 else if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2624 expr_ty expr1, expr2; |
| 35742 | 2625 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2626 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
|
2627 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2628 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2629 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
|
2630 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2631 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2632 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2633 return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2634 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2635 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2636 "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
|
2637 NCH(n)); |
| 35742 | 2638 return NULL; |
| 2639 } | |
| 2640 | |
| 2641 static asdl_seq * | |
| 2642 ast_for_suite(struct compiling *c, const node *n) | |
| 2643 { | |
| 2644 /* 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
|
2645 asdl_seq *seq; |
| 35742 | 2646 stmt_ty s; |
| 2647 int i, total, num, end, pos = 0; | |
| 2648 node *ch; | |
| 2649 | |
| 2650 REQ(n, suite); | |
| 2651 | |
| 2652 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
|
2653 seq = asdl_seq_new(total, c->c_arena); |
| 35742 | 2654 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2655 return NULL; |
| 35742 | 2656 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
|
2657 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2658 /* simple_stmt always ends with a NEWLINE, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2659 and may have a trailing SEMI |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2660 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2661 end = NCH(n) - 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2662 if (TYPE(CHILD(n, end - 1)) == SEMI) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2663 end--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2664 /* loop by 2 to skip semi-colons */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2665 for (i = 0; i < end; i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2666 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2667 s = ast_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2668 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2669 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2670 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2671 } |
| 35742 | 2672 } |
| 2673 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2674 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
|
2675 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2676 REQ(ch, stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2677 num = num_stmts(ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2678 if (num == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2679 /* 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
|
2680 s = ast_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2681 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2682 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2683 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2684 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2685 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2686 int j; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2687 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2688 REQ(ch, simple_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2689 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
|
2690 /* statement terminates with a semi-colon ';' */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2691 if (NCH(CHILD(ch, j)) == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2692 assert((j + 1) == NCH(ch)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2693 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2694 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2695 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
|
2696 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2697 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2698 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2699 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2700 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2701 } |
| 35742 | 2702 } |
| 2703 assert(pos == seq->size); | |
| 2704 return seq; | |
| 2705 } | |
| 2706 | |
| 2707 static stmt_ty | |
| 2708 ast_for_if_stmt(struct compiling *c, const node *n) | |
| 2709 { | |
| 2710 /* if_stmt: 'if' test ':' suite ('elif' test ':' suite)* | |
| 2711 ['else' ':' suite] | |
| 2712 */ | |
| 2713 char *s; | |
| 2714 | |
| 2715 REQ(n, if_stmt); | |
| 2716 | |
| 2717 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2718 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2719 asdl_seq *suite_seq; |
| 35742 | 2720 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2721 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
|
2722 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2723 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2724 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
|
2725 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2726 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2727 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2728 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
|
2729 c->c_arena); |
| 35742 | 2730 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2731 |
| 35742 | 2732 s = STR(CHILD(n, 4)); |
| 2733 /* s[2], the third character in the string, will be | |
| 2734 's' for el_s_e, or | |
| 2735 'i' for el_i_f | |
| 2736 */ | |
| 2737 if (s[2] == 's') { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2738 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2739 asdl_seq *seq1, *seq2; |
| 35742 | 2740 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2741 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
|
2742 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2743 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2744 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
|
2745 if (!seq1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2746 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2747 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
|
2748 if (!seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2749 return NULL; |
| 35742 | 2750 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2751 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
|
2752 c->c_arena); |
| 35742 | 2753 } |
| 2754 else if (s[2] == 'i') { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2755 int i, n_elif, has_else = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2756 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2757 asdl_seq *suite_seq; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2758 asdl_seq *orelse = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2759 n_elif = NCH(n) - 4; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2760 /* 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
|
2761 not fourth, child from the end. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2762 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
|
2763 && 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
|
2764 has_else = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2765 n_elif -= 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2766 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2767 n_elif /= 4; |
| 35742 | 2768 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2769 if (has_else) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2770 asdl_seq *suite_seq2; |
| 35742 | 2771 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2772 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
|
2773 if (!orelse) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2774 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2775 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
|
2776 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2777 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2778 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
|
2779 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2780 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2781 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
|
2782 if (!suite_seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2783 return NULL; |
| 35742 | 2784 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2785 asdl_seq_SET(orelse, 0, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2786 If(expression, suite_seq, suite_seq2, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2787 LINENO(CHILD(n, NCH(n) - 6)), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2788 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
|
2789 c->c_arena)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2790 /* 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
|
2791 n_elif--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2792 } |
| 35742 | 2793 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2794 for (i = 0; i < n_elif; i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2795 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
|
2796 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
|
2797 if (!newobj) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2798 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2799 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
|
2800 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2801 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2802 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
|
2803 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2804 return NULL; |
| 35742 | 2805 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2806 asdl_seq_SET(newobj, 0, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2807 If(expression, suite_seq, orelse, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2808 LINENO(CHILD(n, off)), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2809 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
|
2810 orelse = newobj; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2811 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2812 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
|
2813 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2814 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2815 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
|
2816 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2817 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2818 return If(expression, suite_seq, orelse, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2819 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2820 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2821 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2822 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2823 "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
|
2824 return NULL; |
| 35742 | 2825 } |
| 2826 | |
| 2827 static stmt_ty | |
| 2828 ast_for_while_stmt(struct compiling *c, const node *n) | |
| 2829 { | |
| 2830 /* while_stmt: 'while' test ':' suite ['else' ':' suite] */ | |
| 2831 REQ(n, while_stmt); | |
| 2832 | |
| 2833 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2834 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2835 asdl_seq *suite_seq; |
| 35742 | 2836 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2837 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
|
2838 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2839 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2840 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
|
2841 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2842 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2843 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
|
2844 c->c_arena); |
| 35742 | 2845 } |
| 2846 else if (NCH(n) == 7) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2847 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2848 asdl_seq *seq1, *seq2; |
| 35742 | 2849 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2850 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
|
2851 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2852 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2853 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
|
2854 if (!seq1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2855 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2856 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
|
2857 if (!seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2858 return NULL; |
| 35742 | 2859 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2860 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
|
2861 c->c_arena); |
| 35742 | 2862 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2863 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2864 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2865 "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
|
2866 NCH(n)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2867 return NULL; |
| 35742 | 2868 } |
| 2869 | |
| 2870 static stmt_ty | |
| 2871 ast_for_for_stmt(struct compiling *c, const node *n) | |
| 2872 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2873 asdl_seq *_target, *seq = NULL, *suite_seq; |
| 35742 | 2874 expr_ty expression; |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
2875 expr_ty target, first; |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2876 const node *node_target; |
| 35742 | 2877 /* for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] */ |
| 2878 REQ(n, for_stmt); | |
| 2879 | |
| 2880 if (NCH(n) == 9) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2881 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
|
2882 if (!seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2883 return NULL; |
| 35742 | 2884 } |
| 2885 | |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2886 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
|
2887 _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
|
2888 if (!_target) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2889 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
|
2890 /* 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
|
2891 for x, in ... has 1 element in _target, but still requires a Tuple. */ |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
2892 first = (expr_ty)asdl_seq_GET(_target, 0); |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2893 if (NCH(node_target) == 1) |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
2894 target = first; |
| 35742 | 2895 else |
|
55651
1e2877026435
better col_offsets for "for" statements with tuple unpacking #6704
Benjamin Peterson <benjamin@python.org>
parents:
55362
diff
changeset
|
2896 target = Tuple(_target, Store, first->lineno, first->col_offset, c->c_arena); |
| 35742 | 2897 |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2898 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
|
2899 if (!expression) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2900 return NULL; |
| 35742 | 2901 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
|
2902 if (!suite_seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2903 return NULL; |
| 35742 | 2904 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2905 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
|
2906 c->c_arena); |
| 35742 | 2907 } |
| 2908 | |
| 2909 static excepthandler_ty | |
| 2910 ast_for_except_clause(struct compiling *c, const node *exc, node *body) | |
| 2911 { | |
|
41773
f19e631be101
Backport PEP 3110's new 'except' syntax to 2.6.
Collin Winter <collinw@gmail.com>
parents:
41579
diff
changeset
|
2912 /* except_clause: 'except' [test [(',' | 'as') test]] */ |
| 35742 | 2913 REQ(exc, except_clause); |
| 2914 REQ(body, suite); | |
| 2915 | |
| 2916 if (NCH(exc) == 1) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2917 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
|
2918 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2919 return NULL; |
| 35742 | 2920 |
|
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
|
2921 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
|
2922 exc->n_col_offset, c->c_arena); |
| 35742 | 2923 } |
| 2924 else if (NCH(exc) == 2) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2925 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2926 asdl_seq *suite_seq; |
| 35742 | 2927 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2928 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
|
2929 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2930 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2931 suite_seq = ast_for_suite(c, body); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2932 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2933 return NULL; |
| 35742 | 2934 |
|
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
|
2935 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
|
2936 exc->n_col_offset, c->c_arena); |
| 35742 | 2937 } |
| 2938 else if (NCH(exc) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2939 asdl_seq *suite_seq; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2940 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2941 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
|
2942 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2943 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
|
2944 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
|
2945 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2946 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
|
2947 if (!expression) |
|
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 suite_seq = ast_for_suite(c, body); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2950 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2951 return NULL; |
| 35742 | 2952 |
|
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
|
2953 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
|
2954 exc->n_col_offset, c->c_arena); |
| 35742 | 2955 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2956 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2957 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2958 "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
|
2959 NCH(exc)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2960 return NULL; |
| 35742 | 2961 } |
| 2962 | |
| 2963 static stmt_ty | |
| 2964 ast_for_try_stmt(struct compiling *c, const node *n) | |
| 2965 { | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2966 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
|
2967 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
|
2968 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
|
2969 |
| 35742 | 2970 REQ(n, try_stmt); |
| 2971 | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2972 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
|
2973 if (body == NULL) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2974 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
|
2975 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2976 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
|
2977 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
|
2978 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
|
2979 /* we can assume it's an "else", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2980 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
|
2981 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
|
2982 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
|
2983 if (orelse == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2984 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2985 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2986 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2987 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2988 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
|
2989 if (finally == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2990 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2991 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2992 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2993 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2994 /* we can assume it's an "else", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2995 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
|
2996 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
|
2997 if (orelse == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2998 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2999 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3000 } |
| 35742 | 3001 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
3002 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
|
3003 ast_error(n, "malformed 'try' statement"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3004 return NULL; |
| 35742 | 3005 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
3006 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
3007 if (n_except > 0) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3008 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3009 stmt_ty except_st; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3010 /* 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
|
3011 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
|
3012 if (handlers == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3013 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
|
3014 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3015 for (i = 0; i < n_except; i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3016 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
|
3017 CHILD(n, 5 + i * 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3018 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3019 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3020 asdl_seq_SET(handlers, i, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3021 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
3022 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3023 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
|
3024 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3025 if (!finally) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3026 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
|
3027 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3028 /* 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
|
3029 TryFinally to emulate try ... except ... finally */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3030 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
|
3031 if (body == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3032 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3033 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
|
3034 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
3035 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
3036 /* 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
|
3037 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
|
3038 return TryFinally(body, finally, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3039 } |
| 3040 | |
|
54337
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3041 /* with_item: test ['as' expr] */ |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3042 static stmt_ty |
|
54337
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3043 ast_for_with_item(struct compiling *c, const node *n, asdl_seq *content) |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3044 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3045 expr_ty context_expr, optional_vars = NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3046 |
|
54337
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3047 REQ(n, with_item); |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3048 context_expr = ast_for_expr(c, CHILD(n, 0)); |
|
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
|
3049 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
|
3050 return NULL; |
|
54337
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3051 if (NCH(n) == 3) { |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3052 optional_vars = ast_for_expr(c, CHILD(n, 2)); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3053 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3054 if (!optional_vars) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3055 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3056 } |
|
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
|
3057 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
|
3058 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3059 } |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3060 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3061 |
|
54337
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3062 return With(context_expr, optional_vars, content, LINENO(n), |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3063 n->n_col_offset, c->c_arena); |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3064 } |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3065 |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3066 /* with_stmt: 'with' with_item (',' with_item)* ':' suite */ |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3067 static stmt_ty |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3068 ast_for_with_stmt(struct compiling *c, const node *n) |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3069 { |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3070 int i; |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3071 stmt_ty ret; |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3072 asdl_seq *inner; |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3073 |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3074 REQ(n, with_stmt); |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3075 |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3076 /* process the with items inside-out */ |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3077 i = NCH(n) - 1; |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3078 /* the suite of the innermost with item is the suite of the with stmt */ |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3079 inner = ast_for_suite(c, CHILD(n, i)); |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3080 if (!inner) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3081 return NULL; |
|
54337
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3082 |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3083 for (;;) { |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3084 i -= 2; |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3085 ret = ast_for_with_item(c, CHILD(n, i), inner); |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3086 if (!ret) |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3087 return NULL; |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3088 /* was this the last item? */ |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3089 if (i == 1) |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3090 break; |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3091 /* if not, wrap the result so far in a new sequence */ |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3092 inner = asdl_seq_new(1, c->c_arena); |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3093 if (!inner) |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3094 return NULL; |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3095 asdl_seq_SET(inner, 0, ret); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3096 } |
|
54337
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3097 |
|
16759f62eb22
Allow multiple context managers in one with statement, as proposed
Georg Brandl <georg@python.org>
parents:
50830
diff
changeset
|
3098 return ret; |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3099 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3100 |
| 35742 | 3101 static stmt_ty |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3102 ast_for_classdef(struct compiling *c, const node *n, asdl_seq *decorator_seq) |
| 35742 | 3103 { |
| 3104 /* classdef: 'class' NAME ['(' testlist ')'] ':' suite */ | |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3105 PyObject *classname; |
| 35742 | 3106 asdl_seq *bases, *s; |
| 3107 | |
| 3108 REQ(n, classdef); | |
| 3109 | |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
3110 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
|
3111 return NULL; |
| 35742 | 3112 |
| 3113 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3114 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
|
3115 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3116 return NULL; |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3117 classname = NEW_IDENTIFIER(CHILD(n, 1)); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3118 if (!classname) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3119 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3120 return ClassDef(classname, NULL, s, decorator_seq, LINENO(n), |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3121 n->n_col_offset, c->c_arena); |
| 35742 | 3122 } |
| 3123 /* check for empty base list */ | |
| 3124 if (TYPE(CHILD(n,3)) == RPAR) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3125 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
|
3126 if (!s) |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3127 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3128 classname = NEW_IDENTIFIER(CHILD(n, 1)); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3129 if (!classname) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3130 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3131 return ClassDef(classname, NULL, s, decorator_seq, LINENO(n), |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3132 n->n_col_offset, c->c_arena); |
| 35742 | 3133 } |
| 3134 | |
| 3135 /* 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
|
3136 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
|
3137 if (!bases) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3138 return NULL; |
| 35742 | 3139 |
| 3140 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
|
3141 if (!s) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3142 return NULL; |
|
49842
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3143 classname = NEW_IDENTIFIER(CHILD(n, 1)); |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3144 if (!classname) |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3145 return NULL; |
|
ffad6c0f252e
always check the return value of NEW_IDENTIFIER
Benjamin Peterson <benjamin@python.org>
parents:
49795
diff
changeset
|
3146 return ClassDef(classname, bases, s, decorator_seq, |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3147 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3148 } |
| 3149 | |
| 3150 static stmt_ty | |
| 3151 ast_for_stmt(struct compiling *c, const node *n) | |
| 3152 { | |
| 3153 if (TYPE(n) == stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3154 assert(NCH(n) == 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3155 n = CHILD(n, 0); |
| 35742 | 3156 } |
| 3157 if (TYPE(n) == simple_stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3158 assert(num_stmts(n) == 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3159 n = CHILD(n, 0); |
| 35742 | 3160 } |
| 3161 if (TYPE(n) == small_stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3162 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3163 /* 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
|
3164 | 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
|
3165 | assert_stmt |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3166 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3167 switch (TYPE(n)) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3168 case expr_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3169 return ast_for_expr_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3170 case print_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3171 return ast_for_print_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3172 case del_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3173 return ast_for_del_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3174 case pass_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3175 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
|
3176 case flow_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3177 return ast_for_flow_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3178 case import_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3179 return ast_for_import_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3180 case global_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3181 return ast_for_global_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3182 case exec_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3183 return ast_for_exec_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3184 case assert_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3185 return ast_for_assert_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3186 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3187 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3188 "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
|
3189 TYPE(n), NCH(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3190 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3191 } |
| 35742 | 3192 } |
| 3193 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3194 /* 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
|
3195 | funcdef | classdef | decorated |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3196 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3197 node *ch = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3198 REQ(n, compound_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3199 switch (TYPE(ch)) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3200 case if_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3201 return ast_for_if_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3202 case while_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3203 return ast_for_while_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3204 case for_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3205 return ast_for_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3206 case try_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3207 return ast_for_try_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3208 case with_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3209 return ast_for_with_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3210 case funcdef: |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3211 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
|
3212 case classdef: |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3213 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
|
3214 case decorated: |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3215 return ast_for_decorated(c, ch); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3216 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3217 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3218 "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
|
3219 TYPE(n), NCH(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3220 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3221 } |
| 35742 | 3222 } |
| 3223 } | |
| 3224 | |
| 3225 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
|
3226 parsenumber(struct compiling *c, const char *s) |
| 35742 | 3227 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3228 const char *end; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3229 long x; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3230 double dx; |
| 35742 | 3231 #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
|
3232 Py_complex complex; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3233 int imflag; |
| 35742 | 3234 #endif |
| 3235 | |
|
50027
57b5c4639a5d
Issue #4461: Safety check in parsenumber (ast.c)
Mark Dickinson <dickinsm@gmail.com>
parents:
49842
diff
changeset
|
3236 assert(s != NULL); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3237 errno = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3238 end = s + strlen(s) - 1; |
| 35742 | 3239 #ifndef WITHOUT_COMPLEX |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3240 imflag = *end == 'j' || *end == 'J'; |
| 35742 | 3241 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3242 if (*end == 'l' || *end == 'L') |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3243 return PyLong_FromString((char *)s, (char **)0, 0); |
|
47977
c0ab2bafb264
Issue #3360: Fix incorrect parsing of "020000000000.0".
Mark Dickinson <dickinsm@gmail.com>
parents:
47860
diff
changeset
|
3244 x = PyOS_strtol((char *)s, (char **)&end, 0); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3245 if (*end == '\0') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3246 if (errno != 0) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3247 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
|
3248 return PyInt_FromLong(x); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3249 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3250 /* XXX Huge floats may silently fail */ |
| 35742 | 3251 #ifndef WITHOUT_COMPLEX |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3252 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
|
3253 complex.real = 0.; |
|
56856
e99adfc92dc2
Removed PyOS_ascii_atof from ast.c, as mentioned in issue 7117.
Eric Smith <eric@trueblade.com>
parents:
56361
diff
changeset
|
3254 complex.imag = PyOS_string_to_double(s, (char **)&end, NULL); |
|
e99adfc92dc2
Removed PyOS_ascii_atof from ast.c, as mentioned in issue 7117.
Eric Smith <eric@trueblade.com>
parents:
56361
diff
changeset
|
3255 if (complex.imag == -1.0 && PyErr_Occurred()) |
|
e99adfc92dc2
Removed PyOS_ascii_atof from ast.c, as mentioned in issue 7117.
Eric Smith <eric@trueblade.com>
parents:
56361
diff
changeset
|
3256 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
|
3257 return PyComplex_FromCComplex(complex); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3258 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3259 else |
| 35742 | 3260 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3261 { |
|
56856
e99adfc92dc2
Removed PyOS_ascii_atof from ast.c, as mentioned in issue 7117.
Eric Smith <eric@trueblade.com>
parents:
56361
diff
changeset
|
3262 dx = PyOS_string_to_double(s, NULL, NULL); |
|
e99adfc92dc2
Removed PyOS_ascii_atof from ast.c, as mentioned in issue 7117.
Eric Smith <eric@trueblade.com>
parents:
56361
diff
changeset
|
3263 if (dx == -1.0 && PyErr_Occurred()) |
|
e99adfc92dc2
Removed PyOS_ascii_atof from ast.c, as mentioned in issue 7117.
Eric Smith <eric@trueblade.com>
parents:
56361
diff
changeset
|
3264 return NULL; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3265 return PyFloat_FromDouble(dx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3266 } |
| 35742 | 3267 } |
| 3268 | |
| 3269 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
|
3270 decode_utf8(struct compiling *c, const char **sPtr, const char *end, char* encoding) |
| 35742 | 3271 { |
| 3272 #ifndef Py_USING_UNICODE | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3273 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
|
3274 return NULL; |
| 35742 | 3275 #else |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3276 PyObject *u, *v; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3277 char *s, *t; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3278 t = s = (char *)*sPtr; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3279 /* 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
|
3280 while (s < end && (*s & 0x80)) s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3281 *sPtr = s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3282 u = PyUnicode_DecodeUTF8(t, s - t, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3283 if (u == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3284 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3285 v = PyUnicode_AsEncodedString(u, encoding, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3286 Py_DECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3287 return v; |
| 35742 | 3288 #endif |
| 3289 } | |
| 3290 | |
|
42459
dbfc3cf1522d
Place #ifdef Py_USING_UNICODE around decode_unicode().
Georg Brandl <georg@python.org>
parents:
42308
diff
changeset
|
3291 #ifdef Py_USING_UNICODE |
| 35742 | 3292 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
|
3293 decode_unicode(struct compiling *c, const char *s, size_t len, int rawmode, const char *encoding) |
| 35742 | 3294 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3295 PyObject *v, *u; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3296 char *buf; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3297 char *p; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3298 const char *end; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3299 if (encoding == NULL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3300 buf = (char *)s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3301 u = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3302 } 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
|
3303 buf = (char *)s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3304 u = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3305 } else { |
|
47587
1c964ed35ef9
Merge in release25-maint r60793:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47527
diff
changeset
|
3306 /* check for integer overflow */ |
|
56956
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3307 if (len > PY_SIZE_MAX / 6) |
|
47587
1c964ed35ef9
Merge in release25-maint r60793:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47527
diff
changeset
|
3308 return NULL; |
|
56956
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3309 /* "<C3><A4>" (2 bytes) may become "\U000000E4" (10 bytes), or 1:5 |
|
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3310 "\ä" (3 bytes) may become "\u005c\U000000E4" (16 bytes), or ~1:6 */ |
|
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3311 u = PyString_FromStringAndSize((char *)NULL, len * 6); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3312 if (u == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3313 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
|
3314 p = buf = PyString_AsString(u); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3315 end = s + len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3316 while (s < end) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3317 if (*s == '\\') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3318 *p++ = *s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3319 if (*s & 0x80) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3320 strcpy(p, "u005c"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3321 p += 5; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3322 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3323 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3324 if (*s & 0x80) { /* XXX inefficient */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3325 PyObject *w; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3326 char *r; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3327 Py_ssize_t rn, i; |
|
56956
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3328 w = decode_utf8(c, &s, end, "utf-32-be"); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3329 if (w == NULL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3330 Py_DECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3331 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3332 } |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3333 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
|
3334 rn = PyString_Size(w); |
|
56956
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3335 assert(rn % 4 == 0); |
|
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3336 for (i = 0; i < rn; i += 4) { |
|
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3337 sprintf(p, "\\U%02x%02x%02x%02x", |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3338 r[i + 0] & 0xFF, |
|
56956
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3339 r[i + 1] & 0xFF, |
|
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3340 r[i + 2] & 0xFF, |
|
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3341 r[i + 3] & 0xFF); |
|
844180b7e6ff
do a backport of r75928
Benjamin Peterson <benjamin@python.org>
parents:
56856
diff
changeset
|
3342 p += 10; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3343 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3344 Py_DECREF(w); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3345 } else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3346 *p++ = *s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3347 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3348 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3349 len = p - buf; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3350 s = buf; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3351 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3352 if (rawmode) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3353 v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3354 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3355 v = PyUnicode_DecodeUnicodeEscape(s, len, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3356 Py_XDECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3357 return v; |
| 35742 | 3358 } |
|
42459
dbfc3cf1522d
Place #ifdef Py_USING_UNICODE around decode_unicode().
Georg Brandl <georg@python.org>
parents:
42308
diff
changeset
|
3359 #endif |
| 35742 | 3360 |
| 3361 /* s is a Python string literal, including the bracketing quote characters, | |
| 3362 * and r &/or u prefixes (if any), and embedded escape sequences (if any). | |
| 3363 * parsestr parses it, and returns the decoded Python string object. | |
| 3364 */ | |
| 3365 static PyObject * | |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3366 parsestr(struct compiling *c, const char *s) |
| 35742 | 3367 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3368 size_t len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3369 int quote = Py_CHARMASK(*s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3370 int rawmode = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3371 int need_encoding; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3372 int unicode = c->c_future_unicode; |
| 35742 | 3373 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3374 if (isalpha(quote) || quote == '_') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3375 if (quote == 'u' || quote == 'U') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3376 quote = *++s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3377 unicode = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3378 } |
|
44747
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3379 if (quote == 'b' || quote == 'B') { |
|
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3380 quote = *++s; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3381 unicode = 0; |
|
44747
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3382 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3383 if (quote == 'r' || quote == 'R') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3384 quote = *++s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3385 rawmode = 1; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3386 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3387 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3388 if (quote != '\'' && quote != '\"') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3389 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3390 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3391 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3392 s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3393 len = strlen(s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3394 if (len > INT_MAX) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3395 PyErr_SetString(PyExc_OverflowError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3396 "string to parse is too long"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3397 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3398 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3399 if (s[--len] != quote) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3400 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3401 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3402 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3403 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
|
3404 s += 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3405 len -= 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3406 if (s[--len] != quote || s[--len] != quote) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3407 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3408 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3409 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3410 } |
| 35742 | 3411 #ifdef Py_USING_UNICODE |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3412 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
|
3413 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
|
3414 } |
| 35742 | 3415 #endif |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3416 need_encoding = (c->c_encoding != NULL && |
|
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3417 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
|
3418 strcmp(c->c_encoding, "iso-8859-1") != 0); |
|
41215
72da48d96257
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parents:
41205
diff
changeset
|
3419 if (rawmode || strchr(s, '\\') == NULL) { |
|
72da48d96257
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parents:
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diff
changeset
|
3420 if (need_encoding) { |
| 35742 | 3421 #ifndef Py_USING_UNICODE |
|
41215
72da48d96257
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parents:
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diff
changeset
|
3422 /* This should not happen - we never see any other |
|
72da48d96257
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parents:
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diff
changeset
|
3423 encoding. */ |
|
72da48d96257
Clean up formatting of this file.
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parents:
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diff
changeset
|
3424 Py_FatalError( |
|
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diff
changeset
|
3425 "cannot deal with encodings in this build."); |
| 35742 | 3426 #else |
|
41215
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diff
changeset
|
3427 PyObject *v, *u = PyUnicode_DecodeUTF8(s, len, NULL); |
|
72da48d96257
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diff
changeset
|
3428 if (u == NULL) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
|
3429 return NULL; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3430 v = PyUnicode_AsEncodedString(u, c->c_encoding, NULL); |
|
41215
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parents:
41205
diff
changeset
|
3431 Py_DECREF(u); |
|
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diff
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|
3432 return v; |
| 35742 | 3433 #endif |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3434 } else { |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3435 return PyString_FromStringAndSize(s, len); |
|
41215
72da48d96257
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parents:
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diff
changeset
|
3436 } |
|
72da48d96257
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parents:
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diff
changeset
|
3437 } |
| 35742 | 3438 |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3439 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
|
3440 need_encoding ? c->c_encoding : NULL); |
| 35742 | 3441 } |
| 3442 | |
| 3443 /* Build a Python string object out of a STRING atom. This takes care of | |
| 3444 * compile-time literal catenation, calling parsestr() on each piece, and | |
| 3445 * pasting the intermediate results together. | |
| 3446 */ | |
| 3447 static PyObject * | |
| 3448 parsestrplus(struct compiling *c, const node *n) | |
| 3449 { | |
|
41215
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diff
changeset
|
3450 PyObject *v; |
|
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diff
changeset
|
3451 int i; |
|
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diff
changeset
|
3452 REQ(CHILD(n, 0), STRING); |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3453 if ((v = parsestr(c, STR(CHILD(n, 0)))) != NULL) { |
|
41215
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parents:
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diff
changeset
|
3454 /* String literal concatenation */ |
|
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diff
changeset
|
3455 for (i = 1; i < NCH(n); i++) { |
|
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diff
changeset
|
3456 PyObject *s; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3457 s = parsestr(c, STR(CHILD(n, i))); |
|
41215
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parents:
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diff
changeset
|
3458 if (s == NULL) |
|
72da48d96257
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parents:
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diff
changeset
|
3459 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
|
3460 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
|
3461 PyString_ConcatAndDel(&v, s); |
|
41215
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Clean up formatting of this file.
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parents:
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diff
changeset
|
3462 if (v == NULL) |
|
72da48d96257
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parents:
41205
diff
changeset
|
3463 goto onError; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3464 } |
| 35742 | 3465 #ifdef Py_USING_UNICODE |
|
41215
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parents:
41205
diff
changeset
|
3466 else { |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3467 PyObject *temp = PyUnicode_Concat(v, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3468 Py_DECREF(s); |
|
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parents:
41205
diff
changeset
|
3469 Py_DECREF(v); |
|
72da48d96257
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parents:
41205
diff
changeset
|
3470 v = temp; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3471 if (v == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3472 goto onError; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3473 } |
| 35742 | 3474 #endif |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3475 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3476 } |
|
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Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3477 return v; |
| 35742 | 3478 |
| 3479 onError: | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3480 Py_XDECREF(v); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3481 return NULL; |
| 35742 | 3482 } |