Mercurial > cpython-lru_cache-weakref
annotate Python/ast.c @ 49783:eade47dfc1e4 legacy-trunk
Fixed issue #4233.
Changed semantic of _fileio.FileIO's close() method on file objects with closefd=False.
The file descriptor is still kept open but the file object behaves like a closed file.
The FileIO object also got a new readonly attribute closefd.
Approved by Barry
Backport of r67106 from the py3k branch
| author | Amaury Forgeot d'Arc <amauryfa@gmail.com> |
|---|---|
| date | Thu, 20 Nov 2008 23:34:31 +0000 |
| parents | 2e0857b0fc67 |
| children | b64d053afd84 |
| 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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This reverts r63675 based on the discussion in this thread:
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49 PyObject* id = PyString_InternFromString(n); |
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50 PyArena_AddPyObject(arena, id); |
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51 return id; |
| 35742 | 52 } |
| 53 | |
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54 #define NEW_IDENTIFIER(n) new_identifier(STR(n), c->c_arena) |
| 35742 | 55 |
| 56 /* This routine provides an invalid object for the syntax error. | |
| 57 The outermost routine must unpack this error and create the | |
| 58 proper object. We do this so that we don't have to pass | |
| 59 the filename to everything function. | |
| 60 | |
| 61 XXX Maybe we should just pass the filename... | |
| 62 */ | |
| 63 | |
| 64 static int | |
| 65 ast_error(const node *n, const char *errstr) | |
| 66 { | |
| 67 PyObject *u = Py_BuildValue("zi", errstr, LINENO(n)); | |
| 68 if (!u) | |
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69 return 0; |
| 35742 | 70 PyErr_SetObject(PyExc_SyntaxError, u); |
| 71 Py_DECREF(u); | |
| 72 return 0; | |
| 73 } | |
| 74 | |
| 75 static void | |
| 76 ast_error_finish(const char *filename) | |
| 77 { | |
| 78 PyObject *type, *value, *tback, *errstr, *loc, *tmp; | |
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79 long lineno; |
| 35742 | 80 |
| 81 assert(PyErr_Occurred()); | |
| 82 if (!PyErr_ExceptionMatches(PyExc_SyntaxError)) | |
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83 return; |
| 35742 | 84 |
| 85 PyErr_Fetch(&type, &value, &tback); | |
| 86 errstr = PyTuple_GetItem(value, 0); | |
| 87 if (!errstr) | |
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88 return; |
| 35742 | 89 Py_INCREF(errstr); |
| 90 lineno = PyInt_AsLong(PyTuple_GetItem(value, 1)); | |
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91 if (lineno == -1) { |
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92 Py_DECREF(errstr); |
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93 return; |
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94 } |
| 35742 | 95 Py_DECREF(value); |
| 96 | |
| 97 loc = PyErr_ProgramText(filename, lineno); | |
| 98 if (!loc) { | |
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99 Py_INCREF(Py_None); |
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100 loc = Py_None; |
| 35742 | 101 } |
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102 tmp = Py_BuildValue("(zlOO)", filename, lineno, Py_None, loc); |
| 35742 | 103 Py_DECREF(loc); |
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104 if (!tmp) { |
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105 Py_DECREF(errstr); |
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106 return; |
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107 } |
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108 value = PyTuple_Pack(2, errstr, tmp); |
| 35742 | 109 Py_DECREF(errstr); |
| 110 Py_DECREF(tmp); | |
| 111 if (!value) | |
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112 return; |
| 35742 | 113 PyErr_Restore(type, value, tback); |
| 114 } | |
| 115 | |
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116 static int |
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117 ast_warn(struct compiling *c, const node *n, char *msg) |
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118 { |
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119 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, c->c_filename, LINENO(n), |
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120 NULL, NULL) < 0) { |
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121 /* if -Werr, change it to a SyntaxError */ |
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122 if (PyErr_Occurred() && PyErr_ExceptionMatches(PyExc_SyntaxWarning)) |
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123 ast_error(n, msg); |
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124 return 0; |
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125 } |
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126 return 1; |
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127 } |
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128 |
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129 static int |
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130 forbidden_check(struct compiling *c, const node *n, const char *x) |
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131 { |
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132 if (!strcmp(x, "None")) |
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133 return ast_error(n, "cannot assign to None"); |
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134 if (!strcmp(x, "__debug__")) |
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135 return ast_error(n, "cannot assign to __debug__"); |
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136 if (Py_Py3kWarningFlag) { |
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137 if (!(strcmp(x, "True") && strcmp(x, "False")) && |
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138 !ast_warn(c, n, "assignment to True or False is forbidden in 3.x")) |
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139 return 0; |
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140 if (!strcmp(x, "nonlocal") && |
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141 !ast_warn(c, n, "nonlocal is a keyword in 3.x")) |
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142 return 0; |
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143 } |
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144 return 1; |
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145 } |
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146 |
| 35742 | 147 /* num_stmts() returns number of contained statements. |
| 148 | |
| 149 Use this routine to determine how big a sequence is needed for | |
| 150 the statements in a parse tree. Its raison d'etre is this bit of | |
| 151 grammar: | |
| 152 | |
| 153 stmt: simple_stmt | compound_stmt | |
| 154 simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE | |
| 155 | |
| 156 A simple_stmt can contain multiple small_stmt elements joined | |
| 157 by semicolons. If the arg is a simple_stmt, the number of | |
| 158 small_stmt elements is returned. | |
| 159 */ | |
| 160 | |
| 161 static int | |
| 162 num_stmts(const node *n) | |
| 163 { | |
| 164 int i, l; | |
| 165 node *ch; | |
| 166 | |
| 167 switch (TYPE(n)) { | |
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168 case single_input: |
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169 if (TYPE(CHILD(n, 0)) == NEWLINE) |
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170 return 0; |
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171 else |
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172 return num_stmts(CHILD(n, 0)); |
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173 case file_input: |
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174 l = 0; |
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175 for (i = 0; i < NCH(n); i++) { |
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176 ch = CHILD(n, i); |
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177 if (TYPE(ch) == stmt) |
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178 l += num_stmts(ch); |
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179 } |
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180 return l; |
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181 case stmt: |
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182 return num_stmts(CHILD(n, 0)); |
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183 case compound_stmt: |
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184 return 1; |
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185 case simple_stmt: |
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186 return NCH(n) / 2; /* Divide by 2 to remove count of semi-colons */ |
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187 case suite: |
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188 if (NCH(n) == 1) |
|
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|
189 return num_stmts(CHILD(n, 0)); |
|
72da48d96257
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diff
changeset
|
190 else { |
|
72da48d96257
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diff
changeset
|
191 l = 0; |
|
72da48d96257
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|
192 for (i = 2; i < (NCH(n) - 1); i++) |
|
72da48d96257
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|
193 l += num_stmts(CHILD(n, i)); |
|
72da48d96257
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|
194 return l; |
|
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|
195 } |
|
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diff
changeset
|
196 default: { |
|
72da48d96257
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changeset
|
197 char buf[128]; |
| 35742 | 198 |
|
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|
199 sprintf(buf, "Non-statement found: %d %d\n", |
|
72da48d96257
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|
200 TYPE(n), NCH(n)); |
|
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|
201 Py_FatalError(buf); |
|
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|
202 } |
| 35742 | 203 } |
| 204 assert(0); | |
| 205 return 0; | |
| 206 } | |
| 207 | |
| 208 /* Transform the CST rooted at node * to the appropriate AST | |
| 209 */ | |
| 210 | |
| 211 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
|
212 PyAST_FromNode(const node *n, PyCompilerFlags *flags, const char *filename, |
|
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|
213 PyArena *arena) |
| 35742 | 214 { |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
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36712
diff
changeset
|
215 int i, j, k, num; |
| 35742 | 216 asdl_seq *stmts = NULL; |
| 217 stmt_ty s; | |
| 218 node *ch; | |
| 219 struct compiling c; | |
| 220 | |
| 221 if (flags && flags->cf_flags & PyCF_SOURCE_IS_UTF8) { | |
|
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|
222 c.c_encoding = "utf-8"; |
|
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|
223 if (TYPE(n) == encoding_decl) { |
|
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changeset
|
224 ast_error(n, "encoding declaration in Unicode string"); |
|
72da48d96257
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|
225 goto error; |
|
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|
226 } |
| 35742 | 227 } else if (TYPE(n) == encoding_decl) { |
|
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|
228 c.c_encoding = STR(n); |
|
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|
229 n = CHILD(n, 0); |
| 35742 | 230 } else { |
|
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|
231 c.c_encoding = NULL; |
| 35742 | 232 } |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
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46075
diff
changeset
|
233 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
|
234 c.c_arena = arena; |
|
43997
17479a09ec7c
Added filename to compiling struct based on Martin's suggestion.
Christian Heimes <christian@cheimes.de>
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43985
diff
changeset
|
235 c.c_filename = filename; |
| 35742 | 236 |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
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36712
diff
changeset
|
237 k = 0; |
| 35742 | 238 switch (TYPE(n)) { |
|
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diff
changeset
|
239 case file_input: |
|
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|
240 stmts = asdl_seq_new(num_stmts(n), arena); |
|
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diff
changeset
|
241 if (!stmts) |
|
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diff
changeset
|
242 return NULL; |
|
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diff
changeset
|
243 for (i = 0; i < NCH(n) - 1; i++) { |
|
72da48d96257
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diff
changeset
|
244 ch = CHILD(n, i); |
|
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diff
changeset
|
245 if (TYPE(ch) == NEWLINE) |
|
72da48d96257
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41205
diff
changeset
|
246 continue; |
|
72da48d96257
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diff
changeset
|
247 REQ(ch, stmt); |
|
72da48d96257
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diff
changeset
|
248 num = num_stmts(ch); |
|
72da48d96257
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diff
changeset
|
249 if (num == 1) { |
|
72da48d96257
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diff
changeset
|
250 s = ast_for_stmt(&c, ch); |
|
72da48d96257
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diff
changeset
|
251 if (!s) |
|
72da48d96257
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diff
changeset
|
252 goto error; |
|
72da48d96257
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diff
changeset
|
253 asdl_seq_SET(stmts, k++, s); |
|
72da48d96257
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diff
changeset
|
254 } |
|
72da48d96257
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41205
diff
changeset
|
255 else { |
|
72da48d96257
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diff
changeset
|
256 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
257 REQ(ch, simple_stmt); |
|
72da48d96257
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diff
changeset
|
258 for (j = 0; j < num; j++) { |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
259 s = ast_for_stmt(&c, CHILD(ch, j * 2)); |
|
72da48d96257
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41205
diff
changeset
|
260 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
261 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
262 asdl_seq_SET(stmts, k++, s); |
|
72da48d96257
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41205
diff
changeset
|
263 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
264 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
265 } |
|
72da48d96257
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41205
diff
changeset
|
266 return Module(stmts, arena); |
|
72da48d96257
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diff
changeset
|
267 case eval_input: { |
|
72da48d96257
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41205
diff
changeset
|
268 expr_ty testlist_ast; |
| 35742 | 269 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
270 /* XXX Why not gen_for here? */ |
|
72da48d96257
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41205
diff
changeset
|
271 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
|
272 if (!testlist_ast) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
273 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
274 return Expression(testlist_ast, arena); |
|
72da48d96257
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41205
diff
changeset
|
275 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
276 case single_input: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
277 if (TYPE(CHILD(n, 0)) == NEWLINE) { |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
278 stmts = asdl_seq_new(1, arena); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
279 if (!stmts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
280 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
281 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
|
282 arena)); |
|
41579
7a4f174df844
Handle a couple of uncaught errors. This should be backported
Neal Norwitz <nnorwitz@gmail.com>
parents:
41578
diff
changeset
|
283 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
|
284 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
285 return Interactive(stmts, arena); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
286 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
287 else { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
288 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
289 num = num_stmts(n); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
290 stmts = asdl_seq_new(num, arena); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
291 if (!stmts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
292 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
293 if (num == 1) { |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
294 s = ast_for_stmt(&c, n); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
295 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
296 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
297 asdl_seq_SET(stmts, 0, s); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
298 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
299 else { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
300 /* 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
|
301 REQ(n, simple_stmt); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
302 for (i = 0; i < NCH(n); i += 2) { |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
303 if (TYPE(CHILD(n, i)) == NEWLINE) |
|
72da48d96257
Clean up formatting of this file.
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parents:
41205
diff
changeset
|
304 break; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
305 s = ast_for_stmt(&c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
306 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
307 goto error; |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
308 asdl_seq_SET(stmts, i / 2, s); |
|
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
309 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
310 } |
| 35742 | 311 |
|
41215
72da48d96257
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41205
diff
changeset
|
312 return Interactive(stmts, arena); |
|
72da48d96257
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parents:
41205
diff
changeset
|
313 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
314 default: |
|
41578
bc6a0fe32351
Actually raise an exception before calling ast_error_finish.
Georg Brandl <georg@python.org>
parents:
41215
diff
changeset
|
315 PyErr_Format(PyExc_SystemError, |
|
bc6a0fe32351
Actually raise an exception before calling ast_error_finish.
Georg Brandl <georg@python.org>
parents:
41215
diff
changeset
|
316 "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
|
317 goto error; |
| 35742 | 318 } |
| 319 error: | |
| 320 ast_error_finish(filename); | |
| 321 return NULL; | |
| 322 } | |
| 323 | |
| 324 /* Return the AST repr. of the operator represented as syntax (|, ^, etc.) | |
| 325 */ | |
| 326 | |
| 327 static operator_ty | |
| 328 get_operator(const node *n) | |
| 329 { | |
| 330 switch (TYPE(n)) { | |
|
41215
72da48d96257
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41205
diff
changeset
|
331 case VBAR: |
|
72da48d96257
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parents:
41205
diff
changeset
|
332 return BitOr; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
333 case CIRCUMFLEX: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
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334 return BitXor; |
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335 case AMPER: |
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336 return BitAnd; |
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337 case LEFTSHIFT: |
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338 return LShift; |
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339 case RIGHTSHIFT: |
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340 return RShift; |
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341 case PLUS: |
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342 return Add; |
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343 case MINUS: |
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344 return Sub; |
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345 case STAR: |
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346 return Mult; |
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347 case SLASH: |
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348 return Div; |
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349 case DOUBLESLASH: |
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350 return FloorDiv; |
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351 case PERCENT: |
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352 return Mod; |
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353 default: |
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354 return (operator_ty)0; |
| 35742 | 355 } |
| 356 } | |
| 357 | |
|
36718
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358 /* Set the context ctx for expr_ty e, recursively traversing e. |
| 35742 | 359 |
| 360 Only sets context for expr kinds that "can appear in assignment context" | |
| 361 (according to ../Parser/Python.asdl). For other expr kinds, it sets | |
| 362 an appropriate syntax error and returns false. | |
| 363 */ | |
| 364 | |
| 365 static int | |
|
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366 set_context(struct compiling *c, expr_ty e, expr_context_ty ctx, const node *n) |
| 35742 | 367 { |
| 368 asdl_seq *s = NULL; | |
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369 /* If a particular expression type can't be used for assign / delete, |
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370 set expr_name to its name and an error message will be generated. |
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371 */ |
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372 const char* expr_name = NULL; |
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373 |
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374 /* The ast defines augmented store and load contexts, but the |
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375 implementation here doesn't actually use them. The code may be |
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376 a little more complex than necessary as a result. It also means |
|
39037
9f70f6ba7b69
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377 that expressions in an augmented assignment have a Store context. |
|
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378 Consider restructuring so that augmented assignment uses |
|
36695
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PEP 343 -- the with-statement.
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379 set_context(), too. |
|
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380 */ |
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381 assert(ctx != AugStore && ctx != AugLoad); |
| 35742 | 382 |
| 383 switch (e->kind) { | |
|
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384 case Attribute_kind: |
|
47523
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385 if (ctx == Store && !forbidden_check(c, n, |
|
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|
386 PyBytes_AS_STRING(e->v.Attribute.attr))) |
|
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387 return 0; |
|
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388 e->v.Attribute.ctx = ctx; |
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389 break; |
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390 case Subscript_kind: |
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391 e->v.Subscript.ctx = ctx; |
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392 break; |
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393 case Name_kind: |
|
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394 if (ctx == Store && !forbidden_check(c, n, |
|
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|
395 PyBytes_AS_STRING(e->v.Name.id))) |
|
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396 return 0; |
|
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397 e->v.Name.ctx = ctx; |
|
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398 break; |
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399 case List_kind: |
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|
400 e->v.List.ctx = ctx; |
|
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401 s = e->v.List.elts; |
|
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|
402 break; |
|
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|
403 case Tuple_kind: |
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404 if (asdl_seq_LEN(e->v.Tuple.elts) == 0) |
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405 return ast_error(n, "can't assign to ()"); |
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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 break; |
|
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|
409 case Lambda_kind: |
|
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|
410 expr_name = "lambda"; |
|
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|
411 break; |
|
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|
412 case Call_kind: |
|
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413 expr_name = "function call"; |
|
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|
414 break; |
|
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|
415 case BoolOp_kind: |
|
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416 case BinOp_kind: |
|
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417 case UnaryOp_kind: |
|
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418 expr_name = "operator"; |
|
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|
419 break; |
|
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|
420 case GeneratorExp_kind: |
|
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|
421 expr_name = "generator expression"; |
|
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|
422 break; |
|
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|
423 case Yield_kind: |
|
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|
424 expr_name = "yield expression"; |
|
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|
425 break; |
|
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|
426 case ListComp_kind: |
|
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|
427 expr_name = "list comprehension"; |
|
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|
428 break; |
|
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|
429 case Dict_kind: |
|
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|
430 case Num_kind: |
|
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|
431 case Str_kind: |
|
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|
432 expr_name = "literal"; |
|
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|
433 break; |
|
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|
434 case Compare_kind: |
|
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|
435 expr_name = "comparison"; |
|
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|
436 break; |
|
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changeset
|
437 case Repr_kind: |
|
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|
438 expr_name = "repr"; |
|
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|
439 break; |
|
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changeset
|
440 case IfExp_kind: |
|
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|
441 expr_name = "conditional expression"; |
|
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diff
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|
442 break; |
|
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changeset
|
443 default: |
|
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changeset
|
444 PyErr_Format(PyExc_SystemError, |
|
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changeset
|
445 "unexpected expression in assignment %d (line %d)", |
|
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changeset
|
446 e->kind, e->lineno); |
|
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changeset
|
447 return 0; |
| 35742 | 448 } |
|
36418
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diff
changeset
|
449 /* Check for error string set by switch */ |
|
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changeset
|
450 if (expr_name) { |
|
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changeset
|
451 char buf[300]; |
|
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changeset
|
452 PyOS_snprintf(buf, sizeof(buf), |
|
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changeset
|
453 "can't %s %s", |
|
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changeset
|
454 ctx == Store ? "assign to" : "delete", |
|
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changeset
|
455 expr_name); |
|
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changeset
|
456 return ast_error(n, buf); |
|
36418
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diff
changeset
|
457 } |
|
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diff
changeset
|
458 |
| 35742 | 459 /* If the LHS is a list or tuple, we need to set the assignment |
|
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changeset
|
460 context for all the contained elements. |
| 35742 | 461 */ |
| 462 if (s) { | |
|
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changeset
|
463 int i; |
| 35742 | 464 |
|
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diff
changeset
|
465 for (i = 0; i < asdl_seq_LEN(s); i++) { |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
466 if (!set_context(c, (expr_ty)asdl_seq_GET(s, i), ctx, n)) |
|
41215
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|
467 return 0; |
|
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|
468 } |
| 35742 | 469 } |
| 470 return 1; | |
| 471 } | |
| 472 | |
| 473 static operator_ty | |
|
46642
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The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
474 ast_for_augassign(struct compiling *c, const node *n) |
| 35742 | 475 { |
| 476 REQ(n, augassign); | |
| 477 n = CHILD(n, 0); | |
| 478 switch (STR(n)[0]) { | |
|
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479 case '+': |
|
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|
480 return Add; |
|
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|
481 case '-': |
|
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|
482 return Sub; |
|
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|
483 case '/': |
|
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|
484 if (STR(n)[1] == '/') |
|
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|
485 return FloorDiv; |
|
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|
486 else |
|
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|
487 return Div; |
|
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488 case '%': |
|
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|
489 return Mod; |
|
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490 case '<': |
|
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|
491 return LShift; |
|
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492 case '>': |
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|
493 return RShift; |
|
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494 case '&': |
|
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495 return BitAnd; |
|
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496 case '^': |
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497 return BitXor; |
|
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498 case '|': |
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499 return BitOr; |
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500 case '*': |
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501 if (STR(n)[1] == '*') |
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502 return Pow; |
|
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|
503 else |
|
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|
504 return Mult; |
|
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|
505 default: |
|
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|
506 PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n)); |
|
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507 return (operator_ty)0; |
| 35742 | 508 } |
| 509 } | |
| 510 | |
| 511 static cmpop_ty | |
|
46642
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The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
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diff
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|
512 ast_for_comp_op(struct compiling *c, const node *n) |
| 35742 | 513 { |
| 514 /* comp_op: '<'|'>'|'=='|'>='|'<='|'<>'|'!='|'in'|'not' 'in'|'is' | |
|
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|
515 |'is' 'not' |
| 35742 | 516 */ |
| 517 REQ(n, comp_op); | |
| 518 if (NCH(n) == 1) { | |
|
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519 n = CHILD(n, 0); |
|
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520 switch (TYPE(n)) { |
|
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521 case LESS: |
|
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522 return Lt; |
|
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523 case GREATER: |
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524 return Gt; |
|
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525 case EQEQUAL: /* == */ |
|
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526 return Eq; |
|
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527 case LESSEQUAL: |
|
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528 return LtE; |
|
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diff
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|
529 case GREATEREQUAL: |
|
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|
530 return GtE; |
|
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|
531 case NOTEQUAL: |
|
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|
532 return NotEq; |
|
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|
533 case NAME: |
|
72da48d96257
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|
534 if (strcmp(STR(n), "in") == 0) |
|
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diff
changeset
|
535 return In; |
|
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|
536 if (strcmp(STR(n), "is") == 0) |
|
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|
537 return Is; |
|
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|
538 default: |
|
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changeset
|
539 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s", |
|
72da48d96257
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diff
changeset
|
540 STR(n)); |
|
72da48d96257
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diff
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|
541 return (cmpop_ty)0; |
|
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diff
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|
542 } |
| 35742 | 543 } |
| 544 else if (NCH(n) == 2) { | |
|
41215
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diff
changeset
|
545 /* handle "not in" and "is not" */ |
|
72da48d96257
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parents:
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diff
changeset
|
546 switch (TYPE(CHILD(n, 0))) { |
|
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41205
diff
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|
547 case NAME: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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|
548 if (strcmp(STR(CHILD(n, 1)), "in") == 0) |
|
72da48d96257
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diff
changeset
|
549 return NotIn; |
|
72da48d96257
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diff
changeset
|
550 if (strcmp(STR(CHILD(n, 0)), "is") == 0) |
|
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|
551 return IsNot; |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
552 default: |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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changeset
|
553 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s", |
|
72da48d96257
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diff
changeset
|
554 STR(CHILD(n, 0)), STR(CHILD(n, 1))); |
|
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diff
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|
555 return (cmpop_ty)0; |
|
72da48d96257
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diff
changeset
|
556 } |
| 35742 | 557 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
558 PyErr_Format(PyExc_SystemError, "invalid comp_op: has %d children", |
|
41215
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diff
changeset
|
559 NCH(n)); |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
560 return (cmpop_ty)0; |
| 35742 | 561 } |
| 562 | |
| 563 static asdl_seq * | |
| 564 seq_for_testlist(struct compiling *c, const node *n) | |
| 565 { | |
| 566 /* testlist: test (',' test)* [','] */ | |
|
35759
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
567 asdl_seq *seq; |
|
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
568 expr_ty expression; |
|
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
569 int i; |
|
41215
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diff
changeset
|
570 assert(TYPE(n) == testlist || |
|
72da48d96257
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diff
changeset
|
571 TYPE(n) == listmaker || |
|
72da48d96257
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parents:
41205
diff
changeset
|
572 TYPE(n) == testlist_gexp || |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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changeset
|
573 TYPE(n) == testlist_safe || |
|
72da48d96257
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diff
changeset
|
574 TYPE(n) == testlist1); |
| 35742 | 575 |
|
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
|
576 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 577 if (!seq) |
|
41215
72da48d96257
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changeset
|
578 return NULL; |
| 35742 | 579 |
| 580 for (i = 0; i < NCH(n); i += 2) { | |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
581 assert(TYPE(CHILD(n, i)) == test || TYPE(CHILD(n, i)) == old_test); |
| 35742 | 582 |
|
41215
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diff
changeset
|
583 expression = ast_for_expr(c, CHILD(n, i)); |
|
72da48d96257
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diff
changeset
|
584 if (!expression) |
|
72da48d96257
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diff
changeset
|
585 return NULL; |
| 35742 | 586 |
|
41215
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parents:
41205
diff
changeset
|
587 assert(i / 2 < seq->size); |
|
72da48d96257
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parents:
41205
diff
changeset
|
588 asdl_seq_SET(seq, i / 2, expression); |
| 35742 | 589 } |
| 590 return seq; | |
| 591 } | |
| 592 | |
| 593 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
|
594 compiler_complex_args(struct compiling *c, const node *n) |
| 35742 | 595 { |
| 596 int i, len = (NCH(n) + 1) / 2; | |
| 597 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
|
598 asdl_seq *args = asdl_seq_new(len, c->c_arena); |
| 35742 | 599 if (!args) |
|
41215
72da48d96257
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diff
changeset
|
600 return NULL; |
| 35742 | 601 |
|
39872
b8cb7201379c
Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)).
Neal Norwitz <nnorwitz@gmail.com>
parents:
39779
diff
changeset
|
602 /* 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
|
603 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
|
604 */ |
| 35742 | 605 REQ(n, fplist); |
| 606 for (i = 0; i < len; i++) { | |
|
41215
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changeset
|
607 const node *fpdef_node = CHILD(n, 2*i); |
|
72da48d96257
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changeset
|
608 const node *child; |
|
72da48d96257
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diff
changeset
|
609 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
|
610 set_name: |
|
41215
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41205
diff
changeset
|
611 /* fpdef_node is either a NAME or an fplist */ |
|
72da48d96257
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41205
diff
changeset
|
612 child = CHILD(fpdef_node, 0); |
|
72da48d96257
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parents:
41205
diff
changeset
|
613 if (TYPE(child) == NAME) { |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
614 if (!forbidden_check(c, n, STR(child))) |
|
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
615 return NULL; |
|
41215
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diff
changeset
|
616 arg = Name(NEW_IDENTIFIER(child), Store, LINENO(child), |
|
72da48d96257
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diff
changeset
|
617 child->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
618 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
619 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
620 assert(TYPE(fpdef_node) == fpdef); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
621 /* 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
|
622 child = CHILD(fpdef_node, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
623 assert(TYPE(child) == fplist); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
624 /* 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
|
625 if (NCH(child) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
626 fpdef_node = CHILD(child, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
627 assert(TYPE(fpdef_node) == fpdef); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
628 goto set_name; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
629 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
630 arg = compiler_complex_args(c, child); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
631 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
632 asdl_seq_SET(args, i, arg); |
| 35742 | 633 } |
| 634 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
635 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
|
636 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
|
637 return NULL; |
| 35742 | 638 return result; |
| 639 } | |
| 640 | |
| 641 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
642 /* Create AST for argument list. */ |
| 35742 | 643 |
| 644 static arguments_ty | |
| 645 ast_for_arguments(struct compiling *c, const node *n) | |
| 646 { | |
| 647 /* parameters: '(' [varargslist] ')' | |
| 648 varargslist: (fpdef ['=' test] ',')* ('*' NAME [',' '**' NAME] | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
649 | '**' NAME) | fpdef ['=' test] (',' fpdef ['=' test])* [','] |
| 35742 | 650 */ |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
651 int i, j, k, n_args = 0, n_defaults = 0, found_default = 0; |
| 35742 | 652 asdl_seq *args, *defaults; |
| 653 identifier vararg = NULL, kwarg = NULL; | |
| 654 node *ch; | |
| 655 | |
| 656 if (TYPE(n) == parameters) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
657 if (NCH(n) == 2) /* () as argument list */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
658 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
|
659 n = CHILD(n, 1); |
| 35742 | 660 } |
| 661 REQ(n, varargslist); | |
| 662 | |
| 663 /* first count the number of normal args & defaults */ | |
| 664 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
|
665 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
666 if (TYPE(ch) == fpdef) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
667 n_args++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
668 if (TYPE(ch) == EQUAL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
669 n_defaults++; |
| 35742 | 670 } |
|
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
|
671 args = (n_args ? asdl_seq_new(n_args, c->c_arena) : NULL); |
| 35742 | 672 if (!args && n_args) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
673 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
|
674 defaults = (n_defaults ? asdl_seq_new(n_defaults, c->c_arena) : NULL); |
| 35742 | 675 if (!defaults && n_defaults) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
676 return NULL; /* Don't need to goto error; no objects allocated */ |
| 35742 | 677 |
| 678 /* fpdef: NAME | '(' fplist ')' | |
| 679 fplist: fpdef (',' fpdef)* [','] | |
| 680 */ | |
| 681 i = 0; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
682 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
|
683 k = 0; /* index for args */ |
| 35742 | 684 while (i < NCH(n)) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
685 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
686 switch (TYPE(ch)) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
687 case fpdef: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
688 handle_fpdef: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
689 /* 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
|
690 anything other than EQUAL or a comma? */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
691 /* 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
|
692 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
|
693 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
|
694 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
695 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
696 assert(defaults != NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
697 asdl_seq_SET(defaults, j++, expression); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
698 i += 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
699 found_default = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
700 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
701 else if (found_default) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
702 ast_error(n, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
703 "non-default argument follows default argument"); |
|
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 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
706 if (NCH(ch) == 3) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
707 ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
708 /* 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
|
709 if (NCH(ch) != 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
710 /* We have complex arguments, setup for unpacking. */ |
|
47524
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
711 if (Py_Py3kWarningFlag && !ast_warn(c, ch, |
|
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
712 "tuple parameter unpacking has been removed in 3.x")) |
|
53253f36014e
warn about parameter tuple unpacking
Benjamin Peterson <benjamin@python.org>
parents:
47523
diff
changeset
|
713 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
714 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
|
715 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
|
716 goto error; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
717 } else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
718 /* 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
|
719 /* 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
|
720 unpacking mixed in. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
721 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
722 assert(TYPE(ch) == fpdef); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
723 goto handle_fpdef; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
724 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
725 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
726 if (TYPE(CHILD(ch, 0)) == NAME) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
727 expr_ty name; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
728 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
|
729 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
730 name = Name(NEW_IDENTIFIER(CHILD(ch, 0)), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
731 Param, LINENO(ch), ch->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
732 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
733 if (!name) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
734 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
735 asdl_seq_SET(args, k++, name); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
736 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
737 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
738 i += 2; /* the name and the comma */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
739 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
740 case STAR: |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
741 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
|
742 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
743 vararg = NEW_IDENTIFIER(CHILD(n, i+1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
744 i += 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
745 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
746 case DOUBLESTAR: |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
747 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
|
748 goto error; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
749 kwarg = NEW_IDENTIFIER(CHILD(n, i+1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
750 i += 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
751 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
752 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
753 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
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diff
changeset
|
754 "unexpected node in varargslist: %d @ %d", |
|
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|
755 TYPE(ch), i); |
|
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|
756 goto error; |
|
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|
757 } |
| 35742 | 758 } |
| 759 | |
|
36065
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Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
760 return arguments(args, vararg, kwarg, defaults, c->c_arena); |
| 35742 | 761 |
| 762 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
|
763 Py_XDECREF(vararg); |
|
76ed7fdc9d85
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Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
764 Py_XDECREF(kwarg); |
| 35742 | 765 return NULL; |
| 766 } | |
| 767 | |
| 768 static expr_ty | |
| 769 ast_for_dotted_name(struct compiling *c, const node *n) | |
| 770 { | |
|
36072
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parents:
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diff
changeset
|
771 expr_ty e; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
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diff
changeset
|
772 identifier id; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
773 int lineno, col_offset; |
| 35742 | 774 int i; |
| 775 | |
| 776 REQ(n, dotted_name); | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
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diff
changeset
|
777 |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
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diff
changeset
|
778 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
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parents:
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diff
changeset
|
779 col_offset = n->n_col_offset; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
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diff
changeset
|
780 |
| 35742 | 781 id = NEW_IDENTIFIER(CHILD(n, 0)); |
| 782 if (!id) | |
|
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diff
changeset
|
783 return NULL; |
|
36786
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Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
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diff
changeset
|
784 e = Name(id, Load, lineno, col_offset, c->c_arena); |
| 35742 | 785 if (!e) |
|
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diff
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|
786 return NULL; |
| 35742 | 787 |
| 788 for (i = 2; i < NCH(n); i+=2) { | |
|
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diff
changeset
|
789 id = NEW_IDENTIFIER(CHILD(n, i)); |
|
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diff
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|
790 if (!id) |
|
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|
791 return NULL; |
|
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|
792 e = Attribute(e, id, Load, lineno, col_offset, c->c_arena); |
|
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changeset
|
793 if (!e) |
|
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diff
changeset
|
794 return NULL; |
| 35742 | 795 } |
| 796 | |
| 797 return e; | |
| 798 } | |
| 799 | |
| 800 static expr_ty | |
| 801 ast_for_decorator(struct compiling *c, const node *n) | |
| 802 { | |
| 803 /* decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE */ | |
| 804 expr_ty d = NULL; | |
|
36072
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Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
805 expr_ty name_expr; |
| 35742 | 806 |
| 807 REQ(n, decorator); | |
|
36418
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
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36242
diff
changeset
|
808 REQ(CHILD(n, 0), AT); |
|
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
809 REQ(RCHILD(n, -1), NEWLINE); |
| 35742 | 810 |
| 811 name_expr = ast_for_dotted_name(c, CHILD(n, 1)); | |
| 812 if (!name_expr) | |
|
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|
813 return NULL; |
|
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|
814 |
| 35742 | 815 if (NCH(n) == 3) { /* No arguments */ |
|
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|
816 d = name_expr; |
|
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diff
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|
817 name_expr = NULL; |
| 35742 | 818 } |
| 819 else if (NCH(n) == 5) { /* Call with no arguments */ | |
|
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|
820 d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
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|
821 n->n_col_offset, c->c_arena); |
|
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|
822 if (!d) |
|
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changeset
|
823 return NULL; |
|
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changeset
|
824 name_expr = NULL; |
| 35742 | 825 } |
| 826 else { | |
|
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|
827 d = ast_for_call(c, CHILD(n, 3), name_expr); |
|
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|
828 if (!d) |
|
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changeset
|
829 return NULL; |
|
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changeset
|
830 name_expr = NULL; |
| 35742 | 831 } |
| 832 | |
| 833 return d; | |
| 834 } | |
| 835 | |
| 836 static asdl_seq* | |
| 837 ast_for_decorators(struct compiling *c, const node *n) | |
| 838 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
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diff
changeset
|
839 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
|
840 expr_ty d; |
| 35742 | 841 int i; |
| 842 | |
| 843 REQ(n, decorators); | |
|
36065
ea083efdc96c
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Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
844 decorator_seq = asdl_seq_new(NCH(n), c->c_arena); |
| 35742 | 845 if (!decorator_seq) |
|
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diff
changeset
|
846 return NULL; |
|
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diff
changeset
|
847 |
| 35742 | 848 for (i = 0; i < NCH(n); i++) { |
|
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|
849 d = ast_for_decorator(c, CHILD(n, i)); |
|
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diff
changeset
|
850 if (!d) |
|
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changeset
|
851 return NULL; |
|
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diff
changeset
|
852 asdl_seq_SET(decorator_seq, i, d); |
| 35742 | 853 } |
| 854 return decorator_seq; | |
| 855 } | |
| 856 | |
| 857 static stmt_ty | |
|
45447
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Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
858 ast_for_funcdef(struct compiling *c, const node *n, asdl_seq *decorator_seq) |
| 35742 | 859 { |
|
45447
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parents:
44747
diff
changeset
|
860 /* funcdef: 'def' NAME parameters ':' suite */ |
|
36072
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Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
861 identifier name; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
862 arguments_ty args; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
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parents:
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diff
changeset
|
863 asdl_seq *body; |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
864 int name_i = 1; |
| 35742 | 865 |
| 866 REQ(n, funcdef); | |
| 867 | |
| 868 name = NEW_IDENTIFIER(CHILD(n, name_i)); | |
| 869 if (!name) | |
|
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changeset
|
870 return NULL; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
871 else if (!forbidden_check(c, CHILD(n, name_i), STR(CHILD(n, name_i)))) |
|
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diff
changeset
|
872 return NULL; |
| 35742 | 873 args = ast_for_arguments(c, CHILD(n, name_i + 1)); |
| 874 if (!args) | |
|
41215
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diff
changeset
|
875 return NULL; |
| 35742 | 876 body = ast_for_suite(c, CHILD(n, name_i + 3)); |
| 877 if (!body) | |
|
41215
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diff
changeset
|
878 return NULL; |
| 35742 | 879 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
880 return FunctionDef(name, args, body, decorator_seq, LINENO(n), |
|
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diff
changeset
|
881 n->n_col_offset, c->c_arena); |
| 35742 | 882 } |
| 883 | |
|
45447
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Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
884 static stmt_ty |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
885 ast_for_decorated(struct compiling *c, const node *n) |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
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diff
changeset
|
886 { |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
887 /* decorated: decorators (classdef | funcdef) */ |
|
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Patch #1759: Backport of PEP 3129 class decorators
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parents:
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changeset
|
888 stmt_ty thing = NULL; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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changeset
|
889 asdl_seq *decorator_seq = NULL; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
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diff
changeset
|
890 |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
891 REQ(n, decorated); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
892 |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
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diff
changeset
|
893 decorator_seq = ast_for_decorators(c, CHILD(n, 0)); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
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diff
changeset
|
894 if (!decorator_seq) |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
44747
diff
changeset
|
895 return NULL; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
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diff
changeset
|
896 |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
897 assert(TYPE(CHILD(n, 1)) == funcdef || |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
898 TYPE(CHILD(n, 1)) == classdef); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
44747
diff
changeset
|
899 |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
44747
diff
changeset
|
900 if (TYPE(CHILD(n, 1)) == funcdef) { |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
901 thing = ast_for_funcdef(c, CHILD(n, 1), decorator_seq); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
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diff
changeset
|
902 } else if (TYPE(CHILD(n, 1)) == classdef) { |
|
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Patch #1759: Backport of PEP 3129 class decorators
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parents:
44747
diff
changeset
|
903 thing = ast_for_classdef(c, CHILD(n, 1), decorator_seq); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
904 } |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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parents:
44747
diff
changeset
|
905 /* we count the decorators in when talking about the class' or |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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changeset
|
906 function's line number */ |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
907 if (thing) { |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
908 thing->lineno = LINENO(n); |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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changeset
|
909 thing->col_offset = n->n_col_offset; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
910 } |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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changeset
|
911 return thing; |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
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diff
changeset
|
912 } |
|
393822f2ef90
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changeset
|
913 |
| 35742 | 914 static expr_ty |
| 915 ast_for_lambdef(struct compiling *c, const node *n) | |
| 916 { | |
| 917 /* lambdef: 'lambda' [varargslist] ':' test */ | |
| 918 arguments_ty args; | |
| 919 expr_ty expression; | |
| 920 | |
| 921 if (NCH(n) == 3) { | |
|
41215
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diff
changeset
|
922 args = arguments(NULL, NULL, NULL, NULL, c->c_arena); |
|
72da48d96257
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changeset
|
923 if (!args) |
|
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|
924 return NULL; |
|
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changeset
|
925 expression = ast_for_expr(c, CHILD(n, 2)); |
|
72da48d96257
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changeset
|
926 if (!expression) |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
927 return NULL; |
| 35742 | 928 } |
| 929 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
930 args = ast_for_arguments(c, CHILD(n, 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
931 if (!args) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
932 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
933 expression = ast_for_expr(c, CHILD(n, 3)); |
|
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Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
934 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
935 return NULL; |
| 35742 | 936 } |
| 937 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
938 return Lambda(args, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 939 } |
| 940 | |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
941 static expr_ty |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
942 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
|
943 { |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
944 /* 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
|
945 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
|
946 |
|
36676
67c74efad8c2
Fix old not-reading-pep-308-right artifact.
Thomas Wouters <thomas@python.org>
parents:
36670
diff
changeset
|
947 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
|
948 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
|
949 if (!body) |
|
41215
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Clean up formatting of this file.
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diff
changeset
|
950 return NULL; |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
951 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
|
952 if (!expression) |
|
41215
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Clean up formatting of this file.
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diff
changeset
|
953 return NULL; |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
954 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
|
955 if (!orelse) |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
956 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
|
957 return IfExp(expression, body, orelse, LINENO(n), n->n_col_offset, |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
958 c->c_arena); |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
959 } |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
960 |
|
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
|
961 /* 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
|
962 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
|
963 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
|
964 */ |
|
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
|
965 |
| 35742 | 966 /* Count the number of 'for' loop in a list comprehension. |
| 967 | |
| 968 Helper for ast_for_listcomp(). | |
| 969 */ | |
| 970 | |
| 971 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
|
972 count_list_fors(struct compiling *c, const node *n) |
| 35742 | 973 { |
| 974 int n_fors = 0; | |
| 975 node *ch = CHILD(n, 1); | |
| 976 | |
| 977 count_list_for: | |
| 978 n_fors++; | |
| 979 REQ(ch, list_for); | |
| 980 if (NCH(ch) == 5) | |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
981 ch = CHILD(ch, 4); |
| 35742 | 982 else |
|
41215
72da48d96257
Clean up formatting of this file.
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41205
diff
changeset
|
983 return n_fors; |
| 35742 | 984 count_list_iter: |
| 985 REQ(ch, list_iter); | |
| 986 ch = CHILD(ch, 0); | |
| 987 if (TYPE(ch) == list_for) | |
|
41215
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41205
diff
changeset
|
988 goto count_list_for; |
| 35742 | 989 else if (TYPE(ch) == list_if) { |
|
41215
72da48d96257
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diff
changeset
|
990 if (NCH(ch) == 3) { |
|
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diff
changeset
|
991 ch = CHILD(ch, 2); |
|
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41205
diff
changeset
|
992 goto count_list_iter; |
|
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41205
diff
changeset
|
993 } |
|
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diff
changeset
|
994 else |
|
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41205
diff
changeset
|
995 return n_fors; |
| 35742 | 996 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
997 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
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parents:
36066
diff
changeset
|
998 /* Should never be reached */ |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
999 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
|
1000 return -1; |
| 35742 | 1001 } |
| 1002 | |
| 1003 /* Count the number of 'if' statements in a list comprehension. | |
| 1004 | |
| 1005 Helper for ast_for_listcomp(). | |
| 1006 */ | |
| 1007 | |
| 1008 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
|
1009 count_list_ifs(struct compiling *c, const node *n) |
| 35742 | 1010 { |
| 1011 int n_ifs = 0; | |
| 1012 | |
| 1013 count_list_iter: | |
| 1014 REQ(n, list_iter); | |
| 1015 if (TYPE(CHILD(n, 0)) == list_for) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1016 return n_ifs; |
| 35742 | 1017 n = CHILD(n, 0); |
| 1018 REQ(n, list_if); | |
| 1019 n_ifs++; | |
| 1020 if (NCH(n) == 2) | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1021 return n_ifs; |
| 35742 | 1022 n = CHILD(n, 2); |
| 1023 goto count_list_iter; | |
| 1024 } | |
| 1025 | |
| 1026 static expr_ty | |
| 1027 ast_for_listcomp(struct compiling *c, const node *n) | |
| 1028 { | |
| 1029 /* listmaker: test ( list_for | (',' test)* [','] ) | |
| 1030 list_for: 'for' exprlist 'in' testlist_safe [list_iter] | |
| 1031 list_iter: list_for | list_if | |
| 1032 list_if: 'if' test [list_iter] | |
| 1033 testlist_safe: test [(',' test)+ [',']] | |
| 1034 */ | |
| 1035 expr_ty elt; | |
| 1036 asdl_seq *listcomps; | |
| 1037 int i, n_fors; | |
| 1038 node *ch; | |
| 1039 | |
| 1040 REQ(n, listmaker); | |
| 1041 assert(NCH(n) > 1); | |
| 1042 | |
| 1043 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1044 if (!elt) | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1045 return NULL; |
| 35742 | 1046 |
|
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
|
1047 n_fors = count_list_fors(c, n); |
| 35742 | 1048 if (n_fors == -1) |
|
41215
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parents:
41205
diff
changeset
|
1049 return NULL; |
| 35742 | 1050 |
|
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
|
1051 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
|
1052 if (!listcomps) |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1053 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
|
1054 |
| 35742 | 1055 ch = CHILD(n, 1); |
| 1056 for (i = 0; i < n_fors; i++) { | |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1057 comprehension_ty lc; |
|
72da48d96257
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diff
changeset
|
1058 asdl_seq *t; |
|
72da48d96257
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diff
changeset
|
1059 expr_ty expression; |
|
72da48d96257
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41205
diff
changeset
|
1060 node *for_ch; |
|
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diff
changeset
|
1061 |
|
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parents:
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diff
changeset
|
1062 REQ(ch, list_for); |
|
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diff
changeset
|
1063 |
|
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diff
changeset
|
1064 for_ch = CHILD(ch, 1); |
|
72da48d96257
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diff
changeset
|
1065 t = ast_for_exprlist(c, for_ch, Store); |
|
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diff
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|
1066 if (!t) |
|
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diff
changeset
|
1067 return NULL; |
|
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diff
changeset
|
1068 expression = ast_for_testlist(c, CHILD(ch, 3)); |
|
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diff
changeset
|
1069 if (!expression) |
|
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diff
changeset
|
1070 return NULL; |
|
72da48d96257
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diff
changeset
|
1071 |
|
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diff
changeset
|
1072 /* Check the # of children rather than the length of t, since |
|
72da48d96257
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diff
changeset
|
1073 [x for x, in ... ] has 1 element in t, but still requires a Tuple. |
|
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parents:
41205
diff
changeset
|
1074 */ |
|
72da48d96257
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41205
diff
changeset
|
1075 if (NCH(for_ch) == 1) |
|
72da48d96257
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diff
changeset
|
1076 lc = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, NULL, |
|
72da48d96257
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diff
changeset
|
1077 c->c_arena); |
|
72da48d96257
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diff
changeset
|
1078 else |
|
72da48d96257
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41205
diff
changeset
|
1079 lc = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset, |
|
72da48d96257
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diff
changeset
|
1080 c->c_arena), |
|
72da48d96257
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diff
changeset
|
1081 expression, NULL, c->c_arena); |
|
72da48d96257
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diff
changeset
|
1082 if (!lc) |
|
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diff
changeset
|
1083 return NULL; |
| 35742 | 1084 |
|
41215
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diff
changeset
|
1085 if (NCH(ch) == 5) { |
|
72da48d96257
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diff
changeset
|
1086 int j, n_ifs; |
|
72da48d96257
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diff
changeset
|
1087 asdl_seq *ifs; |
|
72da48d96257
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41205
diff
changeset
|
1088 expr_ty list_for_expr; |
| 35742 | 1089 |
|
41215
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diff
changeset
|
1090 ch = CHILD(ch, 4); |
|
46642
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The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
1091 n_ifs = count_list_ifs(c, ch); |
|
41215
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41205
diff
changeset
|
1092 if (n_ifs == -1) |
|
72da48d96257
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diff
changeset
|
1093 return NULL; |
| 35742 | 1094 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1095 ifs = asdl_seq_new(n_ifs, c->c_arena); |
|
72da48d96257
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diff
changeset
|
1096 if (!ifs) |
|
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diff
changeset
|
1097 return NULL; |
| 35742 | 1098 |
|
41215
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Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1099 for (j = 0; j < n_ifs; j++) { |
|
72da48d96257
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41205
diff
changeset
|
1100 REQ(ch, list_iter); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1101 ch = CHILD(ch, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1102 REQ(ch, list_if); |
|
72da48d96257
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41205
diff
changeset
|
1103 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1104 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
|
1105 if (!list_for_expr) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1106 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1107 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1108 asdl_seq_SET(ifs, j, list_for_expr); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1109 if (NCH(ch) == 3) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1110 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1111 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1112 /* on exit, must guarantee that ch is a list_for */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1113 if (TYPE(ch) == list_iter) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1114 ch = CHILD(ch, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1115 lc->ifs = ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1116 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1117 asdl_seq_SET(listcomps, i, lc); |
| 35742 | 1118 } |
| 1119 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1120 return ListComp(elt, listcomps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1121 } |
| 1122 | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1123 /* Count the number of 'for' loops in a generator expression. |
| 35742 | 1124 |
| 1125 Helper for ast_for_genexp(). | |
| 1126 */ | |
| 1127 | |
| 1128 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
|
1129 count_gen_fors(struct compiling *c, const node *n) |
| 35742 | 1130 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1131 int n_fors = 0; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1132 node *ch = CHILD(n, 1); |
| 35742 | 1133 |
| 1134 count_gen_for: | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1135 n_fors++; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1136 REQ(ch, gen_for); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1137 if (NCH(ch) == 5) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1138 ch = CHILD(ch, 4); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1139 else |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1140 return n_fors; |
| 35742 | 1141 count_gen_iter: |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1142 REQ(ch, gen_iter); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1143 ch = CHILD(ch, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1144 if (TYPE(ch) == gen_for) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1145 goto count_gen_for; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1146 else if (TYPE(ch) == gen_if) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1147 if (NCH(ch) == 3) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1148 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1149 goto count_gen_iter; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1150 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1151 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1152 return n_fors; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1153 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1154 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1155 /* Should never be reached */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1156 PyErr_SetString(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1157 "logic error in count_gen_fors"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1158 return -1; |
| 35742 | 1159 } |
| 1160 | |
| 1161 /* Count the number of 'if' statements in a generator expression. | |
| 1162 | |
| 1163 Helper for ast_for_genexp(). | |
| 1164 */ | |
| 1165 | |
| 1166 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
|
1167 count_gen_ifs(struct compiling *c, const node *n) |
| 35742 | 1168 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1169 int n_ifs = 0; |
| 35742 | 1170 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1171 while (1) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1172 REQ(n, gen_iter); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1173 if (TYPE(CHILD(n, 0)) == gen_for) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1174 return n_ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1175 n = CHILD(n, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1176 REQ(n, gen_if); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1177 n_ifs++; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1178 if (NCH(n) == 2) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1179 return n_ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1180 n = CHILD(n, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1181 } |
| 35742 | 1182 } |
| 1183 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1184 /* TODO(jhylton): Combine with list comprehension code? */ |
| 35742 | 1185 static expr_ty |
| 1186 ast_for_genexp(struct compiling *c, const node *n) | |
| 1187 { | |
| 1188 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1189 argument: [test '='] test [gen_for] # Really [keyword '='] test */ |
| 35742 | 1190 expr_ty elt; |
| 1191 asdl_seq *genexps; | |
| 1192 int i, n_fors; | |
| 1193 node *ch; | |
| 1194 | |
| 1195 assert(TYPE(n) == (testlist_gexp) || TYPE(n) == (argument)); | |
| 1196 assert(NCH(n) > 1); | |
| 1197 | |
| 1198 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1199 if (!elt) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1200 return NULL; |
| 35742 | 1201 |
|
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
|
1202 n_fors = count_gen_fors(c, n); |
| 35742 | 1203 if (n_fors == -1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1204 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
|
1205 |
|
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
|
1206 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
|
1207 if (!genexps) |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1208 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
|
1209 |
| 35742 | 1210 ch = CHILD(n, 1); |
| 1211 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
|
1212 comprehension_ty ge; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1213 asdl_seq *t; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1214 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1215 node *for_ch; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1216 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1217 REQ(ch, gen_for); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1218 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1219 for_ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1220 t = ast_for_exprlist(c, for_ch, Store); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1221 if (!t) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1222 return NULL; |
|
72da48d96257
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parents:
41205
diff
changeset
|
1223 expression = ast_for_expr(c, CHILD(ch, 3)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1224 if (!expression) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1225 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
|
1226 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1227 /* Check the # of children rather than the length of t, since |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1228 (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>
parents:
41205
diff
changeset
|
1229 if (NCH(for_ch) == 1) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1230 ge = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1231 NULL, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1232 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1233 ge = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1234 c->c_arena), |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1235 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
|
1236 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1237 if (!ge) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1240 if (NCH(ch) == 5) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1241 int j, n_ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1242 asdl_seq *ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1243 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1244 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
|
1245 n_ifs = count_gen_ifs(c, ch); |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1246 if (n_ifs == -1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1247 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
|
1248 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1249 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
|
1250 if (!ifs) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1251 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
|
1252 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1253 for (j = 0; j < n_ifs; j++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1254 REQ(ch, gen_iter); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1255 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1256 REQ(ch, gen_if); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1257 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1258 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
|
1259 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1260 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1261 asdl_seq_SET(ifs, j, expression); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1262 if (NCH(ch) == 3) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1263 ch = CHILD(ch, 2); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1264 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1265 /* 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
|
1266 if (TYPE(ch) == gen_iter) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1267 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1268 ge->ifs = ifs; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1269 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1270 asdl_seq_SET(genexps, i, ge); |
| 35742 | 1271 } |
| 1272 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1273 return GeneratorExp(elt, genexps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1274 } |
| 1275 | |
| 1276 static expr_ty | |
| 1277 ast_for_atom(struct compiling *c, const node *n) | |
| 1278 { | |
| 1279 /* atom: '(' [yield_expr|testlist_gexp] ')' | '[' [listmaker] ']' | |
| 1280 | '{' [dictmaker] '}' | '`' testlist '`' | NAME | NUMBER | STRING+ | |
| 1281 */ | |
| 1282 node *ch = CHILD(n, 0); | |
| 1283 | |
| 1284 switch (TYPE(ch)) { | |
| 1285 case NAME: | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1286 /* 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
|
1287 changed. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1288 return Name(NEW_IDENTIFIER(ch), Load, LINENO(n), n->n_col_offset, |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1289 c->c_arena); |
| 35742 | 1290 case STRING: { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1291 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
|
1292 if (!str) { |
|
44572
db5e01c33eb7
Make Python compile with --disable-unicode.
Georg Brandl <georg@python.org>
parents:
43997
diff
changeset
|
1293 #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
|
1294 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
|
1295 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
|
1296 PyErr_Fetch(&type, &value, &tback); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1297 errstr = ((PyUnicodeErrorObject *)value)->reason; |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1298 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
|
1299 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
|
1300 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
|
1301 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
|
1302 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
|
1303 ast_error(n, buf); |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1304 } else { |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1305 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
|
1306 } |
|
6775ee6d89d3
SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors.
Guido van Rossum <guido@python.org>
parents:
41974
diff
changeset
|
1307 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
|
1308 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
|
1309 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
|
1310 } |
|
44572
db5e01c33eb7
Make Python compile with --disable-unicode.
Georg Brandl <georg@python.org>
parents:
43997
diff
changeset
|
1311 #endif |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1312 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
|
1313 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1314 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1315 return Str(str, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1316 } |
| 1317 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
|
1318 PyObject *pynum = parsenumber(c, STR(ch)); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1319 if (!pynum) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1320 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
|
1321 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1322 PyArena_AddPyObject(c->c_arena, pynum); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1323 return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1324 } |
| 1325 case LPAR: /* some parenthesized expressions */ | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1326 ch = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1327 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1328 if (TYPE(ch) == RPAR) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1329 return Tuple(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
|
1330 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1331 if (TYPE(ch) == yield_expr) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1332 return ast_for_expr(c, ch); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1333 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1334 if ((NCH(ch) > 1) && (TYPE(CHILD(ch, 1)) == gen_for)) |
|
72da48d96257
Clean up formatting of this file.
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parents:
41205
diff
changeset
|
1335 return ast_for_genexp(c, ch); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1336 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1337 return ast_for_testlist_gexp(c, ch); |
| 35742 | 1338 case LSQB: /* list (or list comprehension) */ |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1339 ch = CHILD(n, 1); |
|
72da48d96257
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41205
diff
changeset
|
1340 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1341 if (TYPE(ch) == RSQB) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1342 return List(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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parents:
41205
diff
changeset
|
1343 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1344 REQ(ch, listmaker); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1345 if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1346 asdl_seq *elts = seq_for_testlist(c, ch); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1347 if (!elts) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1348 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
|
1349 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1350 return List(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
|
1351 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1352 else |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1353 return ast_for_listcomp(c, ch); |
| 35742 | 1354 case LBRACE: { |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1355 /* dictmaker: test ':' test (',' test ':' test)* [','] */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1356 int i, size; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1357 asdl_seq *keys, *values; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1358 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1359 ch = CHILD(n, 1); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1360 size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */ |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1361 keys = asdl_seq_new(size, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1362 if (!keys) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1363 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1364 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1365 values = asdl_seq_new(size, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1366 if (!values) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1367 return NULL; |
|
72da48d96257
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parents:
41205
diff
changeset
|
1368 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1369 for (i = 0; i < NCH(ch); i += 4) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1370 expr_ty expression; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1371 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1372 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
|
1373 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1374 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
|
1375 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1376 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
|
1377 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1378 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
|
1379 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1380 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
|
1381 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1382 asdl_seq_SET(values, i / 4, expression); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1383 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1384 return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1385 } |
| 1386 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
|
1387 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
|
1388 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
|
1389 !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
|
1390 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
|
1391 expression = ast_for_testlist(c, CHILD(n, 1)); |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1392 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1393 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
|
1394 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1395 return Repr(expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1396 } |
| 1397 default: | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1398 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
|
1399 return NULL; |
| 35742 | 1400 } |
| 1401 } | |
| 1402 | |
| 1403 static slice_ty | |
| 1404 ast_for_slice(struct compiling *c, const node *n) | |
| 1405 { | |
| 1406 node *ch; | |
| 1407 expr_ty lower = NULL, upper = NULL, step = NULL; | |
| 1408 | |
| 1409 REQ(n, subscript); | |
| 1410 | |
| 1411 /* | |
| 1412 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] | |
| 1413 sliceop: ':' [test] | |
| 1414 */ | |
| 1415 ch = CHILD(n, 0); | |
| 1416 if (TYPE(ch) == DOT) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1417 return Ellipsis(c->c_arena); |
| 35742 | 1418 |
| 1419 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
|
1420 /* '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
|
1421 other vars */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1422 step = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1423 if (!step) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1424 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1425 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1426 return Index(step, c->c_arena); |
| 35742 | 1427 } |
| 1428 | |
| 1429 if (TYPE(ch) == test) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1430 lower = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1431 if (!lower) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1432 return NULL; |
| 35742 | 1433 } |
| 1434 | |
| 1435 /* If there's an upper bound it's in the second or third position. */ | |
| 1436 if (TYPE(ch) == COLON) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1437 if (NCH(n) > 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1438 node *n2 = CHILD(n, 1); |
| 35742 | 1439 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1440 if (TYPE(n2) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1441 upper = ast_for_expr(c, n2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1442 if (!upper) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1443 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1444 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1445 } |
| 35742 | 1446 } else if (NCH(n) > 2) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1447 node *n2 = CHILD(n, 2); |
| 35742 | 1448 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1449 if (TYPE(n2) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1450 upper = ast_for_expr(c, n2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1451 if (!upper) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1452 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1453 } |
| 35742 | 1454 } |
| 1455 | |
| 1456 ch = CHILD(n, NCH(n) - 1); | |
| 1457 if (TYPE(ch) == sliceop) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1458 if (NCH(ch) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1459 /* No expression, so step is None */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1460 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1461 step = Name(new_identifier("None", c->c_arena), Load, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1462 LINENO(ch), ch->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1463 if (!step) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1464 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1465 } else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1466 ch = CHILD(ch, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1467 if (TYPE(ch) == test) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1468 step = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1469 if (!step) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1470 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1471 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1472 } |
| 35742 | 1473 } |
| 1474 | |
|
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
|
1475 return Slice(lower, upper, step, c->c_arena); |
| 35742 | 1476 } |
| 1477 | |
| 1478 static expr_ty | |
| 1479 ast_for_binop(struct compiling *c, const node *n) | |
| 1480 { | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1481 /* Must account for a sequence of expressions. |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1482 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
|
1483 BinOp(BinOp(A, op, B), op, C). |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1484 */ |
| 35742 | 1485 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1486 int i, nops; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1487 expr_ty expr1, expr2, result; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1488 operator_ty newoperator; |
| 35742 | 1489 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1490 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
|
1491 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1492 return NULL; |
| 35742 | 1493 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1494 expr2 = ast_for_expr(c, CHILD(n, 2)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1495 if (!expr2) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1496 return NULL; |
| 35742 | 1497 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1498 newoperator = get_operator(CHILD(n, 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1499 if (!newoperator) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1500 return NULL; |
| 35742 | 1501 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1502 result = BinOp(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1503 c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1504 if (!result) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1505 return NULL; |
| 35742 | 1506 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1507 nops = (NCH(n) - 1) / 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1508 for (i = 1; i < nops; i++) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1509 expr_ty tmp_result, tmp; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1510 const node* next_oper = CHILD(n, i * 2 + 1); |
| 35742 | 1511 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1512 newoperator = get_operator(next_oper); |
|
72da48d96257
Clean up formatting of this file.
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parents:
41205
diff
changeset
|
1513 if (!newoperator) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1514 return NULL; |
| 35742 | 1515 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1516 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
|
1517 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1518 return NULL; |
| 35742 | 1519 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1520 tmp_result = BinOp(result, newoperator, tmp, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1521 LINENO(next_oper), next_oper->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
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parents:
41205
diff
changeset
|
1522 c->c_arena); |
|
43470
995677219a65
Fix Coverity #158: Check the correct variable.
Neal Norwitz <nnorwitz@gmail.com>
parents:
42459
diff
changeset
|
1523 if (!tmp_result) |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1524 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1525 result = tmp_result; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1526 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1527 return result; |
| 35742 | 1528 } |
| 1529 | |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1530 static expr_ty |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1531 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
|
1532 { |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1533 /* trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1534 subscriptlist: subscript (',' subscript)* [','] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1535 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1536 */ |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1537 REQ(n, trailer); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1538 if (TYPE(CHILD(n, 0)) == LPAR) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1539 if (NCH(n) == 2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1540 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
|
1541 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1542 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1543 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
|
1544 } |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1545 else if (TYPE(CHILD(n, 0)) == DOT ) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1546 return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1547 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
|
1548 } |
|
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1549 else { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1550 REQ(CHILD(n, 0), LSQB); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1551 REQ(CHILD(n, 2), RSQB); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1552 n = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1553 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1554 slice_ty slc = ast_for_slice(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1555 if (!slc) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1556 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1557 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
|
1558 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1559 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1560 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1561 /* The grammar is ambiguous here. The ambiguity is resolved |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1562 by treating the sequence as a tuple literal if there are |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1563 no slice features. |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1564 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1565 int j; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1566 slice_ty slc; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1567 expr_ty e; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1568 bool simple = true; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1569 asdl_seq *slices, *elts; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1570 slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1571 if (!slices) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1572 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1573 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
|
1574 slc = ast_for_slice(c, CHILD(n, j)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1575 if (!slc) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1576 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1577 if (slc->kind != Index_kind) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1578 simple = false; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1579 asdl_seq_SET(slices, j / 2, slc); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1580 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1581 if (!simple) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1582 return Subscript(left_expr, ExtSlice(slices, c->c_arena), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1583 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
|
1584 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1585 /* extract Index values and put them in a Tuple */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1586 elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1587 if (!elts) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1588 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1589 for (j = 0; j < asdl_seq_LEN(slices); ++j) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1590 slc = (slice_ty)asdl_seq_GET(slices, j); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1591 assert(slc->kind == Index_kind && slc->v.Index.value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1592 asdl_seq_SET(elts, j, slc->v.Index.value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1593 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1594 e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1595 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1596 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1597 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
|
1598 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
|
1599 } |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1600 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1601 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1602 |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1603 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
|
1604 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
|
1605 { |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1606 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
|
1607 expr_ty expression; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1608 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1609 /* 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
|
1610 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
|
1611 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
|
1612 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
|
1613 (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
|
1614 PyLongObject. |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1615 */ |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1616 if (TYPE(CHILD(n, 0)) == MINUS && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1617 NCH(n) == 2 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1618 TYPE((pfactor = CHILD(n, 1))) == factor && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1619 NCH(pfactor) == 1 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1620 TYPE((ppower = CHILD(pfactor, 0))) == power && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1621 NCH(ppower) == 1 && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1622 TYPE((patom = CHILD(ppower, 0))) == atom && |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1623 TYPE((pnum = CHILD(patom, 0))) == NUMBER) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1624 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
|
1625 if (s == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1626 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1627 s[0] = '-'; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1628 strcpy(s + 1, STR(pnum)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1629 PyObject_FREE(STR(pnum)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1630 STR(pnum) = s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1631 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
|
1632 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1633 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1634 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
|
1635 if (!expression) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1636 return NULL; |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1637 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1638 switch (TYPE(CHILD(n, 0))) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1639 case PLUS: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1640 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
|
1641 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1642 case MINUS: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1643 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
|
1644 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1645 case TILDE: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1646 return UnaryOp(Invert, expression, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1647 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
|
1648 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1649 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
|
1650 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
|
1651 return NULL; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1652 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1653 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1654 static expr_ty |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1655 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
|
1656 { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1657 /* power: atom trailer* ('**' factor)* |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1658 */ |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1659 int i; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1660 expr_ty e, tmp; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1661 REQ(n, power); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1662 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
|
1663 if (!e) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1664 return NULL; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1665 if (NCH(n) == 1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1666 return e; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1667 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
|
1668 node *ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1669 if (TYPE(ch) != trailer) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1670 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1671 tmp = ast_for_trailer(c, ch, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1672 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1673 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1674 tmp->lineno = e->lineno; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1675 tmp->col_offset = e->col_offset; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1676 e = tmp; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1677 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1678 if (TYPE(CHILD(n, NCH(n) - 1)) == factor) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1679 expr_ty f = ast_for_expr(c, CHILD(n, NCH(n) - 1)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1680 if (!f) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1681 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1682 tmp = BinOp(e, Pow, f, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1683 if (!tmp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1684 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1685 e = tmp; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1686 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1687 return e; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1688 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1689 |
| 35742 | 1690 /* Do not name a variable 'expr'! Will cause a compile error. |
| 1691 */ | |
| 1692 | |
| 1693 static expr_ty | |
| 1694 ast_for_expr(struct compiling *c, const node *n) | |
| 1695 { | |
| 1696 /* 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
|
1697 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
|
1698 or_test: and_test ('or' and_test)* |
| 35742 | 1699 and_test: not_test ('and' not_test)* |
| 1700 not_test: 'not' not_test | comparison | |
| 1701 comparison: expr (comp_op expr)* | |
| 1702 expr: xor_expr ('|' xor_expr)* | |
| 1703 xor_expr: and_expr ('^' and_expr)* | |
| 1704 and_expr: shift_expr ('&' shift_expr)* | |
| 1705 shift_expr: arith_expr (('<<'|'>>') arith_expr)* | |
| 1706 arith_expr: term (('+'|'-') term)* | |
| 1707 term: factor (('*'|'/'|'%'|'//') factor)* | |
| 1708 factor: ('+'|'-'|'~') factor | power | |
| 1709 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
|
1710 |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1711 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
|
1712 to explicitly allow: |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1713 [ 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
|
1714 (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
|
1715 |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1716 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
|
1717 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
|
1718 |
| 35742 | 1719 */ |
| 1720 | |
| 1721 asdl_seq *seq; | |
| 1722 int i; | |
| 1723 | |
| 1724 loop: | |
| 1725 switch (TYPE(n)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1726 case test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1727 case old_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1728 if (TYPE(CHILD(n, 0)) == lambdef || |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1729 TYPE(CHILD(n, 0)) == old_lambdef) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1730 return ast_for_lambdef(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1731 else if (NCH(n) > 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1732 return ast_for_ifexpr(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1733 /* Fallthrough */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1734 case or_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1735 case and_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1736 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1737 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1738 goto loop; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1739 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1740 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1741 if (!seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1742 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1743 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
|
1744 expr_ty e = ast_for_expr(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1745 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1746 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1747 asdl_seq_SET(seq, i / 2, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1748 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1749 if (!strcmp(STR(CHILD(n, 1)), "and")) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1750 return BoolOp(And, seq, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1751 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1752 assert(!strcmp(STR(CHILD(n, 1)), "or")); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1753 return BoolOp(Or, seq, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1754 case not_test: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1755 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1756 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1757 goto loop; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1758 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1759 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1760 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
|
1761 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1762 return NULL; |
| 35742 | 1763 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1764 return UnaryOp(Not, expression, LINENO(n), n->n_col_offset, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1765 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1766 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1767 case comparison: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1768 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1769 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1770 goto loop; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1771 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1772 else { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1773 expr_ty expression; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1774 asdl_int_seq *ops; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1775 asdl_seq *cmps; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1776 ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1777 if (!ops) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1778 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1779 cmps = asdl_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
|
1780 if (!cmps) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1781 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1782 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1783 for (i = 1; i < NCH(n); i += 2) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1784 cmpop_ty newoperator; |
| 35742 | 1785 |
|
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
|
1786 newoperator = ast_for_comp_op(c, CHILD(n, i)); |
|
41215
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1787 if (!newoperator) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1788 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1789 } |
| 35742 | 1790 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1791 expression = ast_for_expr(c, CHILD(n, i + 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1792 if (!expression) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1793 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1794 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1795 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1796 asdl_seq_SET(ops, i / 2, newoperator); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1797 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
|
1798 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1799 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
|
1800 if (!expression) { |
|
72da48d96257
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41205
diff
changeset
|
1801 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1802 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1803 |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1804 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
|
1805 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
|
1806 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1807 break; |
| 35742 | 1808 |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1809 /* The next five cases all handle BinOps. The main body of code |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1810 is the same in each case, but the switch turned inside out to |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1811 reuse the code for each type of operator. |
|
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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 case expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1814 case xor_expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1815 case and_expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1816 case shift_expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1817 case arith_expr: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1818 case term: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1819 if (NCH(n) == 1) { |
|
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
1820 n = CHILD(n, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1821 goto loop; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1822 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1823 return ast_for_binop(c, n); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1824 case yield_expr: { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1825 expr_ty exp = NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1826 if (NCH(n) == 2) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1827 exp = ast_for_testlist(c, CHILD(n, 1)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1828 if (!exp) |
|
72da48d96257
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41205
diff
changeset
|
1829 return NULL; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1830 } |
|
72da48d96257
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parents:
41205
diff
changeset
|
1831 return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena); |
|
72da48d96257
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41205
diff
changeset
|
1832 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1833 case factor: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1834 if (NCH(n) == 1) { |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1835 n = CHILD(n, 0); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1836 goto loop; |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1837 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1838 return ast_for_factor(c, n); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1839 case power: |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1840 return ast_for_power(c, n); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1841 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1842 PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n)); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
1843 return NULL; |
| 35742 | 1844 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1845 /* should never get here unless if error is set */ |
| 35742 | 1846 return NULL; |
| 1847 } | |
| 1848 | |
| 1849 static expr_ty | |
| 1850 ast_for_call(struct compiling *c, const node *n, expr_ty func) | |
| 1851 { | |
| 1852 /* | |
| 1853 arglist: (argument ',')* (argument [',']| '*' test [',' '**' test] | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1854 | '**' test) |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1855 argument: [test '='] test [gen_for] # Really [keyword '='] test |
| 35742 | 1856 */ |
| 1857 | |
| 1858 int i, nargs, nkeywords, ngens; | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1859 asdl_seq *args; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1860 asdl_seq *keywords; |
| 35742 | 1861 expr_ty vararg = NULL, kwarg = NULL; |
| 1862 | |
| 1863 REQ(n, arglist); | |
| 1864 | |
| 1865 nargs = 0; | |
| 1866 nkeywords = 0; | |
| 1867 ngens = 0; | |
| 1868 for (i = 0; i < NCH(n); i++) { | |
|
41215
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
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41205
diff
changeset
|
1869 node *ch = CHILD(n, i); |
|
72da48d96257
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41205
diff
changeset
|
1870 if (TYPE(ch) == argument) { |
|
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diff
changeset
|
1871 if (NCH(ch) == 1) |
|
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41205
diff
changeset
|
1872 nargs++; |
|
72da48d96257
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diff
changeset
|
1873 else if (TYPE(CHILD(ch, 1)) == gen_for) |
|
72da48d96257
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41205
diff
changeset
|
1874 ngens++; |
|
72da48d96257
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41205
diff
changeset
|
1875 else |
|
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41205
diff
changeset
|
1876 nkeywords++; |
|
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41205
diff
changeset
|
1877 } |
| 35742 | 1878 } |
| 1879 if (ngens > 1 || (ngens && (nargs || nkeywords))) { | |
|
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diff
changeset
|
1880 ast_error(n, "Generator expression must be parenthesized " |
|
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41205
diff
changeset
|
1881 "if not sole argument"); |
|
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41205
diff
changeset
|
1882 return NULL; |
| 35742 | 1883 } |
| 1884 | |
| 1885 if (nargs + nkeywords + ngens > 255) { | |
| 1886 ast_error(n, "more than 255 arguments"); | |
| 1887 return NULL; | |
| 1888 } | |
| 1889 | |
|
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
|
1890 args = asdl_seq_new(nargs + ngens, c->c_arena); |
| 35742 | 1891 if (!args) |
|
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41205
diff
changeset
|
1892 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
|
1893 keywords = asdl_seq_new(nkeywords, c->c_arena); |
| 35742 | 1894 if (!keywords) |
|
41215
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41205
diff
changeset
|
1895 return NULL; |
| 35742 | 1896 nargs = 0; |
| 1897 nkeywords = 0; | |
| 1898 for (i = 0; i < NCH(n); i++) { | |
|
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41205
diff
changeset
|
1899 node *ch = CHILD(n, i); |
|
72da48d96257
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41205
diff
changeset
|
1900 if (TYPE(ch) == argument) { |
|
72da48d96257
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41205
diff
changeset
|
1901 expr_ty e; |
|
72da48d96257
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41205
diff
changeset
|
1902 if (NCH(ch) == 1) { |
|
72da48d96257
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41205
diff
changeset
|
1903 if (nkeywords) { |
|
72da48d96257
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41205
diff
changeset
|
1904 ast_error(CHILD(ch, 0), |
|
72da48d96257
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41205
diff
changeset
|
1905 "non-keyword arg after keyword arg"); |
|
72da48d96257
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41205
diff
changeset
|
1906 return NULL; |
|
72da48d96257
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41205
diff
changeset
|
1907 } |
|
48307
49f52e285a64
allow keyword args to be passed in after *args #3473
Benjamin Peterson <benjamin@python.org>
parents:
47977
diff
changeset
|
1908 if (vararg) { |
|
49f52e285a64
allow keyword args to be passed in after *args #3473
Benjamin Peterson <benjamin@python.org>
parents:
47977
diff
changeset
|
1909 ast_error(CHILD(ch, 0), |
|
49f52e285a64
allow keyword args to be passed in after *args #3473
Benjamin Peterson <benjamin@python.org>
parents:
47977
diff
changeset
|
1910 "only named arguments may follow *expression"); |
|
49f52e285a64
allow keyword args to be passed in after *args #3473
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|
1911 return NULL; |
|
49f52e285a64
allow keyword args to be passed in after *args #3473
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|
1912 } |
|
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1913 e = ast_for_expr(c, CHILD(ch, 0)); |
|
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1914 if (!e) |
|
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1915 return NULL; |
|
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|
1916 asdl_seq_SET(args, nargs++, e); |
|
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1917 } |
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1918 else if (TYPE(CHILD(ch, 1)) == gen_for) { |
|
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1919 e = ast_for_genexp(c, ch); |
|
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1920 if (!e) |
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1921 return NULL; |
|
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|
1922 asdl_seq_SET(args, nargs++, e); |
|
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|
1923 } |
|
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|
1924 else { |
|
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1925 keyword_ty kw; |
|
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|
1926 identifier key; |
|
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#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1927 int k; |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1928 char *tmp; |
| 35742 | 1929 |
|
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1930 /* CHILD(ch, 0) is test, but must be an identifier? */ |
|
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1931 e = ast_for_expr(c, CHILD(ch, 0)); |
|
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1932 if (!e) |
|
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|
1933 return NULL; |
|
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|
1934 /* f(lambda x: x[0] = 3) ends up getting parsed with |
|
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|
1935 * LHS test = lambda x: x[0], and RHS test = 3. |
|
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|
1936 * SF bug 132313 points out that complaining about a keyword |
|
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1937 * then is very confusing. |
|
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|
1938 */ |
|
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|
1939 if (e->kind == Lambda_kind) { |
|
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1940 ast_error(CHILD(ch, 0), |
|
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|
1941 "lambda cannot contain assignment"); |
|
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|
1942 return NULL; |
|
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|
1943 } else if (e->kind != Name_kind) { |
|
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1944 ast_error(CHILD(ch, 0), "keyword can't be an expression"); |
|
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|
1945 return NULL; |
|
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|
1946 } |
|
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|
1947 key = e->v.Name.id; |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
1948 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
|
1949 return NULL; |
|
47860
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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diff
changeset
|
1950 for (k = 0; k < nkeywords; k++) { |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1951 tmp = PyString_AS_STRING( |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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|
1952 ((keyword_ty)asdl_seq_GET(keywords, k))->arg); |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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parents:
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changeset
|
1953 if (!strcmp(tmp, PyString_AS_STRING(key))) { |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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parents:
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changeset
|
1954 ast_error(CHILD(ch, 0), "keyword argument repeated"); |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
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parents:
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diff
changeset
|
1955 return NULL; |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
Benjamin Peterson <benjamin@python.org>
parents:
47587
diff
changeset
|
1956 } |
|
80109d4044cd
#3219 repeated keyword arguments aren't allowed in function calls anymore
Benjamin Peterson <benjamin@python.org>
parents:
47587
diff
changeset
|
1957 } |
|
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|
1958 e = ast_for_expr(c, CHILD(ch, 2)); |
|
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|
1959 if (!e) |
|
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|
1960 return NULL; |
|
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|
1961 kw = keyword(key, e, c->c_arena); |
|
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|
1962 if (!kw) |
|
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|
1963 return NULL; |
|
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|
1964 asdl_seq_SET(keywords, nkeywords++, kw); |
|
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|
1965 } |
|
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|
1966 } |
|
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changeset
|
1967 else if (TYPE(ch) == STAR) { |
|
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|
1968 vararg = ast_for_expr(c, CHILD(n, i+1)); |
|
45661
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents:
45447
diff
changeset
|
1969 if (!vararg) |
|
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
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parents:
45447
diff
changeset
|
1970 return NULL; |
|
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diff
changeset
|
1971 i++; |
|
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diff
changeset
|
1972 } |
|
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diff
changeset
|
1973 else if (TYPE(ch) == DOUBLESTAR) { |
|
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diff
changeset
|
1974 kwarg = 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
changeset
|
1975 if (!kwarg) |
|
ff3e9aeaa692
Issue#2238: some syntax errors from *args or **kwargs expressions
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parents:
45447
diff
changeset
|
1976 return NULL; |
|
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diff
changeset
|
1977 i++; |
|
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diff
changeset
|
1978 } |
| 35742 | 1979 } |
| 1980 | |
|
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diff
changeset
|
1981 return Call(func, args, keywords, vararg, kwarg, func->lineno, |
|
72da48d96257
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diff
changeset
|
1982 func->col_offset, c->c_arena); |
| 35742 | 1983 } |
| 1984 | |
| 1985 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
|
1986 ast_for_testlist(struct compiling *c, const node* n) |
| 35742 | 1987 { |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1988 /* testlist_gexp: test (',' test)* [','] */ |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
1989 /* 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
|
1990 /* 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
|
1991 /* testlist1: test (',' test)* */ |
| 35742 | 1992 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
|
1993 if (TYPE(n) == testlist_gexp) { |
|
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diff
changeset
|
1994 if (NCH(n) > 1) |
|
72da48d96257
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diff
changeset
|
1995 assert(TYPE(CHILD(n, 1)) != gen_for); |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
1996 } |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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diff
changeset
|
1997 else { |
|
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changeset
|
1998 assert(TYPE(n) == testlist || |
|
72da48d96257
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diff
changeset
|
1999 TYPE(n) == testlist_safe || |
|
72da48d96257
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diff
changeset
|
2000 TYPE(n) == testlist1); |
|
35798
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parents:
35771
diff
changeset
|
2001 } |
| 35742 | 2002 if (NCH(n) == 1) |
|
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changeset
|
2003 return ast_for_expr(c, CHILD(n, 0)); |
| 35742 | 2004 else { |
|
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diff
changeset
|
2005 asdl_seq *tmp = seq_for_testlist(c, n); |
|
72da48d96257
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diff
changeset
|
2006 if (!tmp) |
|
72da48d96257
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diff
changeset
|
2007 return NULL; |
|
72da48d96257
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diff
changeset
|
2008 return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2009 } |
|
35798
857f68fba275
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parents:
35771
diff
changeset
|
2010 } |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2011 |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2012 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
|
2013 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
|
2014 { |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2015 /* 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
|
2016 /* 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
|
2017 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
|
2018 if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == gen_for) |
|
41215
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diff
changeset
|
2019 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
|
2020 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
|
2021 } |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
|
2022 |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2023 /* 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
|
2024 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
|
2025 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
|
2026 { |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2027 /* 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
|
2028 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
|
2029 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
|
2030 if (NCH(n) == 1) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2031 expr_ty base; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2032 asdl_seq *bases = asdl_seq_new(1, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2033 if (!bases) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2034 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2035 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
|
2036 if (!base) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2037 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2038 asdl_seq_SET(bases, 0, base); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2039 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
|
2040 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2041 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2042 return seq_for_testlist(c, n); |
| 35742 | 2043 } |
| 2044 | |
| 2045 static stmt_ty | |
| 2046 ast_for_expr_stmt(struct compiling *c, const node *n) | |
| 2047 { | |
| 2048 REQ(n, expr_stmt); | |
| 2049 /* 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
|
2050 | ('=' (yield_expr|testlist))*) |
| 35742 | 2051 testlist: test (',' test)* [','] |
| 2052 augassign: '+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^=' | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2053 | '<<=' | '>>=' | '**=' | '//=' |
| 35742 | 2054 test: ... here starts the operator precendence dance |
| 2055 */ | |
| 2056 | |
| 2057 if (NCH(n) == 1) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2058 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
|
2059 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2060 return NULL; |
| 35742 | 2061 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2062 return Expr(e, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2063 } |
| 2064 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
|
2065 expr_ty expr1, expr2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2066 operator_ty newoperator; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2067 node *ch = CHILD(n, 0); |
| 35742 | 2068 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2069 expr1 = ast_for_testlist(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2070 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2071 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2072 /* TODO(nas): Remove duplicated error checks (set_context does it) */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2073 switch (expr1->kind) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2074 case GeneratorExp_kind: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2075 ast_error(ch, "augmented assignment to generator " |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2076 "expression not possible"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2077 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2078 case Yield_kind: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2079 ast_error(ch, "augmented assignment to yield " |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2080 "expression not possible"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2081 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2082 case Name_kind: { |
|
47294
4fe192d48960
Renamed PyString to PyBytes
Christian Heimes <christian@cheimes.de>
parents:
46642
diff
changeset
|
2083 const char *var_name = PyBytes_AS_STRING(expr1->v.Name.id); |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
2084 if ((var_name[0] == 'N' || var_name[0] == 'T' || var_name[0] == 'F') && |
|
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
2085 !forbidden_check(c, ch, var_name)) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2086 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2087 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2088 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2089 case Attribute_kind: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2090 case Subscript_kind: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2091 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2092 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2093 ast_error(ch, "illegal expression for augmented " |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2094 "assignment"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2095 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2096 } |
|
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
|
2097 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
|
2098 return NULL; |
| 35742 | 2099 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2100 ch = CHILD(n, 2); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2101 if (TYPE(ch) == testlist) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2102 expr2 = ast_for_testlist(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2103 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2104 expr2 = ast_for_expr(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2105 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2106 return NULL; |
| 35742 | 2107 |
|
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
|
2108 newoperator = ast_for_augassign(c, CHILD(n, 1)); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2109 if (!newoperator) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2110 return NULL; |
| 35742 | 2111 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2112 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
|
2113 c->c_arena); |
| 35742 | 2114 } |
| 2115 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2116 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2117 asdl_seq *targets; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2118 node *value; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2119 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2120 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2121 /* a normal assignment */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2122 REQ(CHILD(n, 1), EQUAL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2123 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
|
2124 if (!targets) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2125 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2126 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
|
2127 expr_ty e; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2128 node *ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2129 if (TYPE(ch) == yield_expr) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2130 ast_error(ch, "assignment to yield expression not possible"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2131 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2132 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2133 e = ast_for_testlist(c, ch); |
| 35742 | 2134 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2135 /* set context to assign */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2136 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2137 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2138 |
|
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
|
2139 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
|
2140 return NULL; |
| 35742 | 2141 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2142 asdl_seq_SET(targets, i / 2, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2143 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2144 value = CHILD(n, NCH(n) - 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2145 if (TYPE(value) == testlist) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2146 expression = ast_for_testlist(c, value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2147 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2148 expression = ast_for_expr(c, value); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2149 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2150 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2151 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
|
2152 c->c_arena); |
| 35742 | 2153 } |
| 2154 } | |
| 2155 | |
| 2156 static stmt_ty | |
| 2157 ast_for_print_stmt(struct compiling *c, const node *n) | |
| 2158 { | |
| 2159 /* print_stmt: 'print' ( [ test (',' test)* [','] ] | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2160 | '>>' test [ (',' test)+ [','] ] ) |
| 35742 | 2161 */ |
| 2162 expr_ty dest = NULL, expression; | |
| 2163 asdl_seq *seq; | |
| 2164 bool nl; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2165 int i, j, start = 1; |
| 35742 | 2166 |
| 2167 REQ(n, print_stmt); | |
| 2168 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
|
2169 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
|
2170 if (!dest) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2171 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2172 start = 4; |
| 35742 | 2173 } |
|
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
|
2174 seq = asdl_seq_new((NCH(n) + 1 - start) / 2, c->c_arena); |
| 35742 | 2175 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2176 return NULL; |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2177 for (i = start, j = 0; i < NCH(n); i += 2, ++j) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2178 expression = ast_for_expr(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2179 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2180 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2181 asdl_seq_SET(seq, j, expression); |
| 35742 | 2182 } |
| 2183 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
|
2184 return Print(dest, seq, nl, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2185 } |
| 2186 | |
| 2187 static asdl_seq * | |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
2188 ast_for_exprlist(struct compiling *c, const node *n, expr_context_ty context) |
| 35742 | 2189 { |
| 2190 asdl_seq *seq; | |
| 2191 int i; | |
| 2192 expr_ty e; | |
| 2193 | |
| 2194 REQ(n, exprlist); | |
| 2195 | |
|
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
|
2196 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 2197 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2198 return NULL; |
| 35742 | 2199 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
|
2200 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
|
2201 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2202 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2203 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
|
2204 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
|
2205 return NULL; |
| 35742 | 2206 } |
| 2207 return seq; | |
| 2208 } | |
| 2209 | |
| 2210 static stmt_ty | |
| 2211 ast_for_del_stmt(struct compiling *c, const node *n) | |
| 2212 { | |
| 2213 asdl_seq *expr_list; | |
| 2214 | |
| 2215 /* del_stmt: 'del' exprlist */ | |
| 2216 REQ(n, del_stmt); | |
| 2217 | |
| 2218 expr_list = ast_for_exprlist(c, CHILD(n, 1), Del); | |
| 2219 if (!expr_list) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2220 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2221 return Delete(expr_list, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2222 } |
| 2223 | |
| 2224 static stmt_ty | |
| 2225 ast_for_flow_stmt(struct compiling *c, const node *n) | |
| 2226 { | |
| 2227 /* | |
| 2228 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
|
2229 | yield_stmt |
| 35742 | 2230 break_stmt: 'break' |
| 2231 continue_stmt: 'continue' | |
| 2232 return_stmt: 'return' [testlist] | |
| 2233 yield_stmt: yield_expr | |
| 2234 yield_expr: 'yield' testlist | |
| 2235 raise_stmt: 'raise' [test [',' test [',' test]]] | |
| 2236 */ | |
| 2237 node *ch; | |
| 2238 | |
| 2239 REQ(n, flow_stmt); | |
| 2240 ch = CHILD(n, 0); | |
| 2241 switch (TYPE(ch)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2242 case break_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2243 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
|
2244 case continue_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2245 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
|
2246 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
|
2247 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
|
2248 if (!exp) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2249 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2250 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
|
2251 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2252 case return_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2253 if (NCH(ch) == 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2254 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
|
2255 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2256 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
|
2257 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2258 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2259 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
|
2260 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2261 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2262 case raise_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2263 if (NCH(ch) == 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2264 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
|
2265 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2266 else if (NCH(ch) == 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2267 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
|
2268 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2269 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2270 return Raise(expression, NULL, NULL, LINENO(n), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2271 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2272 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2273 else if (NCH(ch) == 4) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2274 expr_ty expr1, expr2; |
| 35742 | 2275 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2276 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
|
2277 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2278 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2279 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
|
2280 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2281 return NULL; |
| 35742 | 2282 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2283 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
|
2284 c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2285 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2286 else if (NCH(ch) == 6) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2287 expr_ty expr1, expr2, expr3; |
| 35742 | 2288 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2289 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
|
2290 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2291 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2292 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
|
2293 if (!expr2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2294 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2295 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
|
2296 if (!expr3) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2297 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2298 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2299 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
|
2300 c->c_arena); |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2301 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2302 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2303 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2304 "unexpected flow_stmt: %d", TYPE(ch)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2305 return NULL; |
| 35742 | 2306 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2307 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2308 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
|
2309 return NULL; |
| 35742 | 2310 } |
| 2311 | |
| 2312 static alias_ty | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2313 alias_for_import_name(struct compiling *c, const node *n) |
| 35742 | 2314 { |
| 2315 /* | |
|
36742
658f8ff2a442
Make 'as' an actual keyword when with's future statement is used. Not
Thomas Wouters <thomas@python.org>
parents:
36718
diff
changeset
|
2316 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
|
2317 dotted_as_name: dotted_name ['as' NAME] |
| 35742 | 2318 dotted_name: NAME ('.' NAME)* |
| 2319 */ | |
|
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
|
2320 PyObject *str; |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2321 |
| 35742 | 2322 loop: |
| 2323 switch (TYPE(n)) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2324 case import_as_name: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2325 str = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2326 if (NCH(n) == 3) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2327 str = NEW_IDENTIFIER(CHILD(n, 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2328 } |
|
72da48d96257
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2329 return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2330 case dotted_as_name: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2331 if (NCH(n) == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2332 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2333 goto loop; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2334 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2335 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2336 alias_ty a = alias_for_import_name(c, CHILD(n, 0)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2337 if (!a) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2338 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2339 assert(!a->asname); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2340 a->asname = NEW_IDENTIFIER(CHILD(n, 2)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2341 return a; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2342 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2343 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2344 case dotted_name: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2345 if (NCH(n) == 1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2346 return alias(NEW_IDENTIFIER(CHILD(n, 0)), NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2347 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2348 /* 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
|
2349 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2350 size_t len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2351 char *s; |
| 35742 | 2352 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2353 len = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2354 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
|
2355 /* 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
|
2356 len += strlen(STR(CHILD(n, i))) + 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2357 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
|
2358 str = PyString_FromStringAndSize(NULL, len); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2359 if (!str) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2360 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
|
2361 s = PyString_AS_STRING(str); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2362 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2363 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2364 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
|
2365 char *sch = STR(CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2366 strcpy(s, STR(CHILD(n, i))); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2367 s += strlen(sch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2368 *s++ = '.'; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2369 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2370 --s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2371 *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
|
2372 PyString_InternInPlace(&str); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2373 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2374 return alias(str, NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2375 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2376 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2377 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
|
2378 str = PyString_InternFromString("*"); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2379 PyArena_AddPyObject(c->c_arena, str); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2380 return alias(str, NULL, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2381 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2382 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2383 "unexpected import name: %d", TYPE(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2384 return NULL; |
| 35742 | 2385 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2386 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2387 PyErr_SetString(PyExc_SystemError, "unhandled import name condition"); |
| 35742 | 2388 return NULL; |
| 2389 } | |
| 2390 | |
| 2391 static stmt_ty | |
| 2392 ast_for_import_stmt(struct compiling *c, const node *n) | |
| 2393 { | |
| 2394 /* | |
| 2395 import_stmt: import_name | import_from | |
| 2396 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
|
2397 import_from: 'from' ('.'* dotted_name | '.') 'import' |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2398 ('*' | '(' import_as_names ')' | import_as_names) |
| 35742 | 2399 */ |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2400 int lineno; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2401 int col_offset; |
| 35742 | 2402 int i; |
| 2403 asdl_seq *aliases; | |
| 2404 | |
| 2405 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
|
2406 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2407 col_offset = n->n_col_offset; |
| 35742 | 2408 n = CHILD(n, 0); |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2409 if (TYPE(n) == import_name) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2410 n = CHILD(n, 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2411 REQ(n, dotted_as_names); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2412 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
|
2413 if (!aliases) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2414 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2415 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
|
2416 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2417 if (!import_alias) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2418 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2419 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
|
2420 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2421 return Import(aliases, lineno, col_offset, c->c_arena); |
| 35742 | 2422 } |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2423 else if (TYPE(n) == import_from) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2424 int n_children; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2425 int idx, ndots = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2426 alias_ty mod = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2427 identifier modname; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2428 |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2429 /* 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
|
2430 optional module name */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2431 for (idx = 1; idx < NCH(n); idx++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2432 if (TYPE(CHILD(n, idx)) == dotted_name) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2433 mod = alias_for_import_name(c, CHILD(n, idx)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2434 idx++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2435 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2436 } else if (TYPE(CHILD(n, idx)) != DOT) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2437 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2438 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2439 ndots++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2440 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2441 idx++; /* skip over the 'import' keyword */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2442 switch (TYPE(CHILD(n, idx))) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2443 case STAR: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2444 /* from ... import * */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2445 n = CHILD(n, idx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2446 n_children = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2447 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2448 case LPAR: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2449 /* from ... import (x, y, z) */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2450 n = CHILD(n, idx + 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2451 n_children = NCH(n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2452 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2453 case import_as_names: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2454 /* from ... import x, y, z */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2455 n = CHILD(n, idx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2456 n_children = NCH(n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2457 if (n_children % 2 == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2458 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
|
2459 " surrounding parentheses"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2460 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2461 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2462 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2463 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2464 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
|
2465 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2466 } |
| 35742 | 2467 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2468 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
|
2469 if (!aliases) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2470 return NULL; |
| 35742 | 2471 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2472 /* 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
|
2473 if (TYPE(n) == STAR) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2474 alias_ty import_alias = alias_for_import_name(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
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, 0, 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 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2480 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
|
2481 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2482 if (!import_alias) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2483 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2484 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
|
2485 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2486 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2487 if (mod != NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2488 modname = mod->name; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2489 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2490 modname = new_identifier("", c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2491 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
|
2492 c->c_arena); |
| 35742 | 2493 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2494 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2495 "unknown import statement: starts with command '%s'", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2496 STR(CHILD(n, 0))); |
| 35742 | 2497 return NULL; |
| 2498 } | |
| 2499 | |
| 2500 static stmt_ty | |
| 2501 ast_for_global_stmt(struct compiling *c, const node *n) | |
| 2502 { | |
| 2503 /* global_stmt: 'global' NAME (',' NAME)* */ | |
| 2504 identifier name; | |
| 2505 asdl_seq *s; | |
| 2506 int i; | |
| 2507 | |
| 2508 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
|
2509 s = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 2510 if (!s) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2511 return NULL; |
| 35742 | 2512 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
|
2513 name = NEW_IDENTIFIER(CHILD(n, i)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2514 if (!name) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2515 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2516 asdl_seq_SET(s, i / 2, name); |
| 35742 | 2517 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2518 return Global(s, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2519 } |
| 2520 | |
| 2521 static stmt_ty | |
| 2522 ast_for_exec_stmt(struct compiling *c, const node *n) | |
| 2523 { | |
| 2524 expr_ty expr1, globals = NULL, locals = NULL; | |
| 2525 int n_children = NCH(n); | |
| 2526 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
|
2527 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2528 "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
|
2529 n_children); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2530 return NULL; |
| 35742 | 2531 } |
| 2532 | |
| 2533 /* exec_stmt: 'exec' expr ['in' test [',' test]] */ | |
| 2534 REQ(n, exec_stmt); | |
| 2535 expr1 = ast_for_expr(c, CHILD(n, 1)); | |
| 2536 if (!expr1) | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2537 return NULL; |
| 35742 | 2538 if (n_children >= 4) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2539 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
|
2540 if (!globals) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2541 return NULL; |
| 35742 | 2542 } |
| 2543 if (n_children == 6) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2544 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
|
2545 if (!locals) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2546 return NULL; |
| 35742 | 2547 } |
| 2548 | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2549 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
|
2550 c->c_arena); |
| 35742 | 2551 } |
| 2552 | |
| 2553 static stmt_ty | |
| 2554 ast_for_assert_stmt(struct compiling *c, const node *n) | |
| 2555 { | |
| 2556 /* assert_stmt: 'assert' test [',' test] */ | |
| 2557 REQ(n, assert_stmt); | |
| 2558 if (NCH(n) == 2) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2559 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
|
2560 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2561 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2562 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
|
2563 c->c_arena); |
| 35742 | 2564 } |
| 2565 else if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2566 expr_ty expr1, expr2; |
| 35742 | 2567 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2568 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
|
2569 if (!expr1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2570 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2571 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
|
2572 if (!expr2) |
|
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 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2575 return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2576 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2577 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2578 "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
|
2579 NCH(n)); |
| 35742 | 2580 return NULL; |
| 2581 } | |
| 2582 | |
| 2583 static asdl_seq * | |
| 2584 ast_for_suite(struct compiling *c, const node *n) | |
| 2585 { | |
| 2586 /* 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
|
2587 asdl_seq *seq; |
| 35742 | 2588 stmt_ty s; |
| 2589 int i, total, num, end, pos = 0; | |
| 2590 node *ch; | |
| 2591 | |
| 2592 REQ(n, suite); | |
| 2593 | |
| 2594 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
|
2595 seq = asdl_seq_new(total, c->c_arena); |
| 35742 | 2596 if (!seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2597 return NULL; |
| 35742 | 2598 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
|
2599 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2600 /* simple_stmt always ends with a NEWLINE, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2601 and may have a trailing SEMI |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2602 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2603 end = NCH(n) - 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2604 if (TYPE(CHILD(n, end - 1)) == SEMI) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2605 end--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2606 /* loop by 2 to skip semi-colons */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2607 for (i = 0; i < end; i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2608 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2609 s = ast_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2610 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2611 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2612 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2613 } |
| 35742 | 2614 } |
| 2615 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2616 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
|
2617 ch = CHILD(n, i); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2618 REQ(ch, stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2619 num = num_stmts(ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2620 if (num == 1) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2621 /* 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
|
2622 s = ast_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2623 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2624 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2625 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2626 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2627 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2628 int j; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2629 ch = CHILD(ch, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2630 REQ(ch, simple_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2631 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
|
2632 /* statement terminates with a semi-colon ';' */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2633 if (NCH(CHILD(ch, j)) == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2634 assert((j + 1) == NCH(ch)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2635 break; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2636 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2637 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
|
2638 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2639 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2640 asdl_seq_SET(seq, pos++, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2641 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2642 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2643 } |
| 35742 | 2644 } |
| 2645 assert(pos == seq->size); | |
| 2646 return seq; | |
| 2647 } | |
| 2648 | |
| 2649 static stmt_ty | |
| 2650 ast_for_if_stmt(struct compiling *c, const node *n) | |
| 2651 { | |
| 2652 /* if_stmt: 'if' test ':' suite ('elif' test ':' suite)* | |
| 2653 ['else' ':' suite] | |
| 2654 */ | |
| 2655 char *s; | |
| 2656 | |
| 2657 REQ(n, if_stmt); | |
| 2658 | |
| 2659 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2660 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2661 asdl_seq *suite_seq; |
| 35742 | 2662 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2663 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
|
2664 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2665 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2666 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
|
2667 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2668 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2669 |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2670 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
|
2671 c->c_arena); |
| 35742 | 2672 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2673 |
| 35742 | 2674 s = STR(CHILD(n, 4)); |
| 2675 /* s[2], the third character in the string, will be | |
| 2676 's' for el_s_e, or | |
| 2677 'i' for el_i_f | |
| 2678 */ | |
| 2679 if (s[2] == 's') { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2680 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2681 asdl_seq *seq1, *seq2; |
| 35742 | 2682 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2683 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
|
2684 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2685 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2686 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
|
2687 if (!seq1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2688 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2689 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
|
2690 if (!seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2691 return NULL; |
| 35742 | 2692 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2693 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
|
2694 c->c_arena); |
| 35742 | 2695 } |
| 2696 else if (s[2] == 'i') { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2697 int i, n_elif, has_else = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2698 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2699 asdl_seq *suite_seq; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2700 asdl_seq *orelse = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2701 n_elif = NCH(n) - 4; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2702 /* 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
|
2703 not fourth, child from the end. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2704 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
|
2705 && 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
|
2706 has_else = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2707 n_elif -= 3; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2708 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2709 n_elif /= 4; |
| 35742 | 2710 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2711 if (has_else) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2712 asdl_seq *suite_seq2; |
| 35742 | 2713 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2714 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
|
2715 if (!orelse) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2716 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2717 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
|
2718 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2719 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2720 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
|
2721 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2722 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2723 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
|
2724 if (!suite_seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2725 return NULL; |
| 35742 | 2726 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2727 asdl_seq_SET(orelse, 0, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2728 If(expression, suite_seq, suite_seq2, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2729 LINENO(CHILD(n, NCH(n) - 6)), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2730 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
|
2731 c->c_arena)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2732 /* 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
|
2733 n_elif--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2734 } |
| 35742 | 2735 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2736 for (i = 0; i < n_elif; i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2737 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
|
2738 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
|
2739 if (!newobj) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2740 return NULL; |
|
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, off)); |
|
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 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
|
2745 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2746 return NULL; |
| 35742 | 2747 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2748 asdl_seq_SET(newobj, 0, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2749 If(expression, suite_seq, orelse, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2750 LINENO(CHILD(n, off)), |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2751 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
|
2752 orelse = newobj; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2753 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2754 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
|
2755 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2756 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2757 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
|
2758 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2759 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2760 return If(expression, suite_seq, orelse, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2761 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2762 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2763 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2764 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2765 "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
|
2766 return NULL; |
| 35742 | 2767 } |
| 2768 | |
| 2769 static stmt_ty | |
| 2770 ast_for_while_stmt(struct compiling *c, const node *n) | |
| 2771 { | |
| 2772 /* while_stmt: 'while' test ':' suite ['else' ':' suite] */ | |
| 2773 REQ(n, while_stmt); | |
| 2774 | |
| 2775 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2776 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2777 asdl_seq *suite_seq; |
| 35742 | 2778 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2779 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
|
2780 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2781 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2782 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
|
2783 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2784 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2785 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
|
2786 c->c_arena); |
| 35742 | 2787 } |
| 2788 else if (NCH(n) == 7) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2789 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2790 asdl_seq *seq1, *seq2; |
| 35742 | 2791 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2792 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
|
2793 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2794 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2795 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
|
2796 if (!seq1) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2797 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2798 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
|
2799 if (!seq2) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2800 return NULL; |
| 35742 | 2801 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2802 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
|
2803 c->c_arena); |
| 35742 | 2804 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2805 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2806 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2807 "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
|
2808 NCH(n)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2809 return NULL; |
| 35742 | 2810 } |
| 2811 | |
| 2812 static stmt_ty | |
| 2813 ast_for_for_stmt(struct compiling *c, const node *n) | |
| 2814 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2815 asdl_seq *_target, *seq = NULL, *suite_seq; |
| 35742 | 2816 expr_ty expression; |
| 2817 expr_ty target; | |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2818 const node *node_target; |
| 35742 | 2819 /* for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] */ |
| 2820 REQ(n, for_stmt); | |
| 2821 | |
| 2822 if (NCH(n) == 9) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2823 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
|
2824 if (!seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2825 return NULL; |
| 35742 | 2826 } |
| 2827 | |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2828 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
|
2829 _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
|
2830 if (!_target) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2831 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
|
2832 /* 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
|
2833 for x, in ... has 1 element in _target, but still requires a Tuple. */ |
|
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2834 if (NCH(node_target) == 1) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2835 target = (expr_ty)asdl_seq_GET(_target, 0); |
| 35742 | 2836 else |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2837 target = Tuple(_target, Store, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2838 |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2839 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
|
2840 if (!expression) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2841 return NULL; |
| 35742 | 2842 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
|
2843 if (!suite_seq) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2844 return NULL; |
| 35742 | 2845 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2846 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
|
2847 c->c_arena); |
| 35742 | 2848 } |
| 2849 | |
| 2850 static excepthandler_ty | |
| 2851 ast_for_except_clause(struct compiling *c, const node *exc, node *body) | |
| 2852 { | |
|
41773
f19e631be101
Backport PEP 3110's new 'except' syntax to 2.6.
Collin Winter <collinw@gmail.com>
parents:
41579
diff
changeset
|
2853 /* except_clause: 'except' [test [(',' | 'as') test]] */ |
| 35742 | 2854 REQ(exc, except_clause); |
| 2855 REQ(body, suite); | |
| 2856 | |
| 2857 if (NCH(exc) == 1) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2858 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
|
2859 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2860 return NULL; |
| 35742 | 2861 |
|
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
|
2862 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
|
2863 exc->n_col_offset, c->c_arena); |
| 35742 | 2864 } |
| 2865 else if (NCH(exc) == 2) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2866 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2867 asdl_seq *suite_seq; |
| 35742 | 2868 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2869 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
|
2870 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2871 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2872 suite_seq = ast_for_suite(c, body); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2873 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2874 return NULL; |
| 35742 | 2875 |
|
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
|
2876 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
|
2877 exc->n_col_offset, c->c_arena); |
| 35742 | 2878 } |
| 2879 else if (NCH(exc) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2880 asdl_seq *suite_seq; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2881 expr_ty expression; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2882 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
|
2883 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2884 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
|
2885 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
|
2886 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2887 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
|
2888 if (!expression) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2889 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2890 suite_seq = ast_for_suite(c, body); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2891 if (!suite_seq) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2892 return NULL; |
| 35742 | 2893 |
|
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
|
2894 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
|
2895 exc->n_col_offset, c->c_arena); |
| 35742 | 2896 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2897 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2898 PyErr_Format(PyExc_SystemError, |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2899 "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
|
2900 NCH(exc)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2901 return NULL; |
| 35742 | 2902 } |
| 2903 | |
| 2904 static stmt_ty | |
| 2905 ast_for_try_stmt(struct compiling *c, const node *n) | |
| 2906 { | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2907 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
|
2908 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
|
2909 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
|
2910 |
| 35742 | 2911 REQ(n, try_stmt); |
| 2912 | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2913 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
|
2914 if (body == NULL) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2915 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
|
2916 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2917 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
|
2918 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
|
2919 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
|
2920 /* we can assume it's an "else", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2921 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
|
2922 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
|
2923 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
|
2924 if (orelse == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2925 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2926 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2927 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2928 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2929 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
|
2930 if (finally == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2931 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2932 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2933 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2934 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2935 /* we can assume it's an "else", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2936 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
|
2937 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
|
2938 if (orelse == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2939 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2940 n_except--; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2941 } |
| 35742 | 2942 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2943 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
|
2944 ast_error(n, "malformed 'try' statement"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2945 return NULL; |
| 35742 | 2946 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2947 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2948 if (n_except > 0) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2949 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2950 stmt_ty except_st; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2951 /* 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
|
2952 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
|
2953 if (handlers == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2954 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
|
2955 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2956 for (i = 0; i < n_except; i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2957 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
|
2958 CHILD(n, 5 + i * 3)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2959 if (!e) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2960 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2961 asdl_seq_SET(handlers, i, e); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2962 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2963 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2964 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
|
2965 n->n_col_offset, c->c_arena); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2966 if (!finally) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2967 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
|
2968 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2969 /* 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
|
2970 TryFinally to emulate try ... except ... finally */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2971 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
|
2972 if (body == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2973 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
2974 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
|
2975 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2976 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2977 /* 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
|
2978 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
|
2979 return TryFinally(body, finally, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2980 } |
| 2981 | |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2982 static expr_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2983 ast_for_with_var(struct compiling *c, const node *n) |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2984 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2985 REQ(n, with_var); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2986 return ast_for_expr(c, CHILD(n, 1)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2987 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2988 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2989 /* with_stmt: 'with' test [ with_var ] ':' suite */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2990 static stmt_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2991 ast_for_with_stmt(struct compiling *c, const node *n) |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2992 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2993 expr_ty context_expr, optional_vars = NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2994 int suite_index = 3; /* skip 'with', test, and ':' */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2995 asdl_seq *suite_seq; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2996 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2997 assert(TYPE(n) == with_stmt); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2998 context_expr = ast_for_expr(c, CHILD(n, 1)); |
|
41205
b43a52f71696
Patch #1642547: Fix an error/crash when encountering syntax errors in complex if statements.
Collin Winter <collinw@gmail.com>
parents:
40972
diff
changeset
|
2999 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
|
3000 return NULL; |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3001 if (TYPE(CHILD(n, 2)) == with_var) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3002 optional_vars = ast_for_with_var(c, CHILD(n, 2)); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3003 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3004 if (!optional_vars) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3005 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3006 } |
|
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
|
3007 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
|
3008 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3009 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3010 suite_index = 4; |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3011 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3012 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3013 suite_seq = ast_for_suite(c, CHILD(n, suite_index)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3014 if (!suite_seq) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3015 return NULL; |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3016 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
3017 return With(context_expr, optional_vars, suite_seq, LINENO(n), |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3018 n->n_col_offset, c->c_arena); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3019 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3020 |
| 35742 | 3021 static stmt_ty |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3022 ast_for_classdef(struct compiling *c, const node *n, asdl_seq *decorator_seq) |
| 35742 | 3023 { |
| 3024 /* classdef: 'class' NAME ['(' testlist ')'] ':' suite */ | |
| 3025 asdl_seq *bases, *s; | |
| 3026 | |
| 3027 REQ(n, classdef); | |
| 3028 | |
|
47523
d56450db60a2
Warn about assigning to Py3k keywords (True and False)
Benjamin Peterson <benjamin@python.org>
parents:
47521
diff
changeset
|
3029 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
|
3030 return NULL; |
| 35742 | 3031 |
| 3032 if (NCH(n) == 4) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3033 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
|
3034 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3035 return NULL; |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3036 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, decorator_seq, |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3037 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3038 } |
| 3039 /* check for empty base list */ | |
| 3040 if (TYPE(CHILD(n,3)) == RPAR) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3041 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
|
3042 if (!s) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3043 return NULL; |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3044 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, decorator_seq, |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3045 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3046 } |
| 3047 | |
| 3048 /* 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
|
3049 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
|
3050 if (!bases) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3051 return NULL; |
| 35742 | 3052 |
| 3053 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
|
3054 if (!s) |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3055 return NULL; |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3056 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), bases, s, decorator_seq, |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3057 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3058 } |
| 3059 | |
| 3060 static stmt_ty | |
| 3061 ast_for_stmt(struct compiling *c, const node *n) | |
| 3062 { | |
| 3063 if (TYPE(n) == stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3064 assert(NCH(n) == 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3065 n = CHILD(n, 0); |
| 35742 | 3066 } |
| 3067 if (TYPE(n) == simple_stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3068 assert(num_stmts(n) == 1); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3069 n = CHILD(n, 0); |
| 35742 | 3070 } |
| 3071 if (TYPE(n) == small_stmt) { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3072 REQ(n, small_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3073 n = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3074 /* 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
|
3075 | 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
|
3076 | assert_stmt |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3077 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3078 switch (TYPE(n)) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3079 case expr_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3080 return ast_for_expr_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3081 case print_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3082 return ast_for_print_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3083 case del_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3084 return ast_for_del_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3085 case pass_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3086 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
|
3087 case flow_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3088 return ast_for_flow_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3089 case import_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3090 return ast_for_import_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3091 case global_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3092 return ast_for_global_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3093 case exec_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3094 return ast_for_exec_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3095 case assert_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3096 return ast_for_assert_stmt(c, n); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3097 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3098 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3099 "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
|
3100 TYPE(n), NCH(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3101 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3102 } |
| 35742 | 3103 } |
| 3104 else { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3105 /* 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
|
3106 | funcdef | classdef | decorated |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3107 */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3108 node *ch = CHILD(n, 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3109 REQ(n, compound_stmt); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3110 switch (TYPE(ch)) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3111 case if_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3112 return ast_for_if_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3113 case while_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3114 return ast_for_while_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3115 case for_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3116 return ast_for_for_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3117 case try_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3118 return ast_for_try_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3119 case with_stmt: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3120 return ast_for_with_stmt(c, ch); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3121 case funcdef: |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3122 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
|
3123 case classdef: |
|
45447
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3124 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
|
3125 case decorated: |
|
393822f2ef90
Patch #1759: Backport of PEP 3129 class decorators
Christian Heimes <christian@cheimes.de>
parents:
44747
diff
changeset
|
3126 return ast_for_decorated(c, ch); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3127 default: |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3128 PyErr_Format(PyExc_SystemError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3129 "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
|
3130 TYPE(n), NCH(n)); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3131 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3132 } |
| 35742 | 3133 } |
| 3134 } | |
| 3135 | |
| 3136 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
|
3137 parsenumber(struct compiling *c, const char *s) |
| 35742 | 3138 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3139 const char *end; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3140 long x; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3141 double dx; |
| 35742 | 3142 #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
|
3143 Py_complex complex; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3144 int imflag; |
| 35742 | 3145 #endif |
| 3146 | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3147 errno = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3148 end = s + strlen(s) - 1; |
| 35742 | 3149 #ifndef WITHOUT_COMPLEX |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3150 imflag = *end == 'j' || *end == 'J'; |
| 35742 | 3151 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3152 if (*end == 'l' || *end == 'L') |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3153 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
|
3154 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
|
3155 if (*end == '\0') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3156 if (errno != 0) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3157 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
|
3158 return PyInt_FromLong(x); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3159 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3160 /* XXX Huge floats may silently fail */ |
| 35742 | 3161 #ifndef WITHOUT_COMPLEX |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3162 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
|
3163 complex.real = 0.; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3164 PyFPE_START_PROTECT("atof", return 0) |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3165 complex.imag = PyOS_ascii_atof(s); |
|
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3166 PyFPE_END_PROTECT(complex) |
|
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3167 return PyComplex_FromCComplex(complex); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3168 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3169 else |
| 35742 | 3170 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3171 { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3172 PyFPE_START_PROTECT("atof", return 0) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3173 dx = PyOS_ascii_atof(s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3174 PyFPE_END_PROTECT(dx) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3175 return PyFloat_FromDouble(dx); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3176 } |
| 35742 | 3177 } |
| 3178 | |
| 3179 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
|
3180 decode_utf8(struct compiling *c, const char **sPtr, const char *end, char* encoding) |
| 35742 | 3181 { |
| 3182 #ifndef Py_USING_UNICODE | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3183 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
|
3184 return NULL; |
| 35742 | 3185 #else |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3186 PyObject *u, *v; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3187 char *s, *t; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3188 t = s = (char *)*sPtr; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3189 /* 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
|
3190 while (s < end && (*s & 0x80)) s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3191 *sPtr = s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3192 u = PyUnicode_DecodeUTF8(t, s - t, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3193 if (u == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3194 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3195 v = PyUnicode_AsEncodedString(u, encoding, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3196 Py_DECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3197 return v; |
| 35742 | 3198 #endif |
| 3199 } | |
| 3200 | |
|
42459
dbfc3cf1522d
Place #ifdef Py_USING_UNICODE around decode_unicode().
Georg Brandl <georg@python.org>
parents:
42308
diff
changeset
|
3201 #ifdef Py_USING_UNICODE |
| 35742 | 3202 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
|
3203 decode_unicode(struct compiling *c, const char *s, size_t len, int rawmode, const char *encoding) |
| 35742 | 3204 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3205 PyObject *v, *u; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3206 char *buf; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3207 char *p; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3208 const char *end; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3209 if (encoding == NULL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3210 buf = (char *)s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3211 u = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3212 } else if (strcmp(encoding, "iso-8859-1") == 0) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3213 buf = (char *)s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3214 u = NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3215 } else { |
|
47587
1c964ed35ef9
Merge in release25-maint r60793:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47527
diff
changeset
|
3216 /* check for integer overflow */ |
|
1c964ed35ef9
Merge in release25-maint r60793:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47527
diff
changeset
|
3217 if (len > PY_SIZE_MAX / 4) |
|
1c964ed35ef9
Merge in release25-maint r60793:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47527
diff
changeset
|
3218 return NULL; |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3219 /* "\XX" may become "\u005c\uHHLL" (12 bytes) */ |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3220 u = PyString_FromStringAndSize((char *)NULL, len * 4); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3221 if (u == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3222 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
|
3223 p = buf = PyString_AsString(u); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3224 end = s + len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3225 while (s < end) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3226 if (*s == '\\') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3227 *p++ = *s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3228 if (*s & 0x80) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3229 strcpy(p, "u005c"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3230 p += 5; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3231 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3232 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3233 if (*s & 0x80) { /* XXX inefficient */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3234 PyObject *w; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3235 char *r; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3236 Py_ssize_t rn, i; |
|
46642
0deb4ab0426e
The compiling struct is now passed around to all AST helpers (see issue 2720)
Benjamin Peterson <benjamin@python.org>
parents:
46200
diff
changeset
|
3237 w = decode_utf8(c, &s, end, "utf-16-be"); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3238 if (w == NULL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3239 Py_DECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3240 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3241 } |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3242 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
|
3243 rn = PyString_Size(w); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3244 assert(rn % 2 == 0); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3245 for (i = 0; i < rn; i += 2) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3246 sprintf(p, "\\u%02x%02x", |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3247 r[i + 0] & 0xFF, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3248 r[i + 1] & 0xFF); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3249 p += 6; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3250 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3251 Py_DECREF(w); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3252 } else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3253 *p++ = *s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3254 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3255 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3256 len = p - buf; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3257 s = buf; |
|
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 if (rawmode) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3260 v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3261 else |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3262 v = PyUnicode_DecodeUnicodeEscape(s, len, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3263 Py_XDECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3264 return v; |
| 35742 | 3265 } |
|
42459
dbfc3cf1522d
Place #ifdef Py_USING_UNICODE around decode_unicode().
Georg Brandl <georg@python.org>
parents:
42308
diff
changeset
|
3266 #endif |
| 35742 | 3267 |
| 3268 /* s is a Python string literal, including the bracketing quote characters, | |
| 3269 * and r &/or u prefixes (if any), and embedded escape sequences (if any). | |
| 3270 * parsestr parses it, and returns the decoded Python string object. | |
| 3271 */ | |
| 3272 static PyObject * | |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3273 parsestr(struct compiling *c, const char *s) |
| 35742 | 3274 { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3275 size_t len; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3276 int quote = Py_CHARMASK(*s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3277 int rawmode = 0; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3278 int need_encoding; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3279 int unicode = c->c_future_unicode; |
| 35742 | 3280 |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3281 if (isalpha(quote) || quote == '_') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3282 if (quote == 'u' || quote == 'U') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3283 quote = *++s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3284 unicode = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3285 } |
|
44747
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3286 if (quote == 'b' || quote == 'B') { |
|
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3287 quote = *++s; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3288 unicode = 0; |
|
44747
8da9ebf73026
Added bytes and b'' as aliases for str and ''
Christian Heimes <christian@cheimes.de>
parents:
44572
diff
changeset
|
3289 } |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3290 if (quote == 'r' || quote == 'R') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3291 quote = *++s; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3292 rawmode = 1; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3293 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3294 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3295 if (quote != '\'' && quote != '\"') { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3296 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3297 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3298 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3299 s++; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3300 len = strlen(s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3301 if (len > INT_MAX) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3302 PyErr_SetString(PyExc_OverflowError, |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3303 "string to parse is too long"); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3304 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3305 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3306 if (s[--len] != quote) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3307 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3308 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3309 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3310 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
|
3311 s += 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3312 len -= 2; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3313 if (s[--len] != quote || s[--len] != quote) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3314 PyErr_BadInternalCall(); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3315 return NULL; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3316 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3317 } |
| 35742 | 3318 #ifdef Py_USING_UNICODE |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3319 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
|
3320 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
|
3321 } |
| 35742 | 3322 #endif |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3323 need_encoding = (c->c_encoding != NULL && |
|
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3324 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
|
3325 strcmp(c->c_encoding, "iso-8859-1") != 0); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3326 if (rawmode || strchr(s, '\\') == NULL) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3327 if (need_encoding) { |
| 35742 | 3328 #ifndef Py_USING_UNICODE |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3329 /* This should not happen - we never see any other |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3330 encoding. */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3331 Py_FatalError( |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3332 "cannot deal with encodings in this build."); |
| 35742 | 3333 #else |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3334 PyObject *v, *u = PyUnicode_DecodeUTF8(s, len, NULL); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3335 if (u == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3336 return NULL; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3337 v = PyUnicode_AsEncodedString(u, c->c_encoding, NULL); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3338 Py_DECREF(u); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3339 return v; |
| 35742 | 3340 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3341 } else { |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3342 return PyString_FromStringAndSize(s, len); |
|
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 } |
| 35742 | 3345 |
|
47527
52294af4b663
This reverts r63675 based on the discussion in this thread:
Gregory P. Smith <greg@mad-scientist.com>
parents:
47524
diff
changeset
|
3346 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
|
3347 need_encoding ? c->c_encoding : NULL); |
| 35742 | 3348 } |
| 3349 | |
| 3350 /* Build a Python string object out of a STRING atom. This takes care of | |
| 3351 * compile-time literal catenation, calling parsestr() on each piece, and | |
| 3352 * pasting the intermediate results together. | |
| 3353 */ | |
| 3354 static PyObject * | |
| 3355 parsestrplus(struct compiling *c, const node *n) | |
| 3356 { | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3357 PyObject *v; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3358 int i; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3359 REQ(CHILD(n, 0), STRING); |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3360 if ((v = parsestr(c, STR(CHILD(n, 0)))) != NULL) { |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3361 /* String literal concatenation */ |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3362 for (i = 1; i < NCH(n); i++) { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3363 PyObject *s; |
|
46118
c78d3586c474
Patch #2477: Added from __future__ import unicode_literals
Christian Heimes <christian@cheimes.de>
parents:
46075
diff
changeset
|
3364 s = parsestr(c, STR(CHILD(n, i))); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3365 if (s == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3366 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
|
3367 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
|
3368 PyString_ConcatAndDel(&v, s); |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3369 if (v == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3370 goto onError; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3371 } |
| 35742 | 3372 #ifdef Py_USING_UNICODE |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3373 else { |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3374 PyObject *temp = PyUnicode_Concat(v, s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3375 Py_DECREF(s); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3376 Py_DECREF(v); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3377 v = temp; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3378 if (v == NULL) |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3379 goto onError; |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3380 } |
| 35742 | 3381 #endif |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3382 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3383 } |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3384 return v; |
| 35742 | 3385 |
| 3386 onError: | |
|
41215
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3387 Py_XDECREF(v); |
|
72da48d96257
Clean up formatting of this file.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
41205
diff
changeset
|
3388 return NULL; |
| 35742 | 3389 } |