Mercurial > cpython-lru_cache-weakref
annotate Python/ast.c @ 40407:98a1eca3a930 2.5
Backport of r52862.
| author | Armin Rigo <arigo@tunes.org> |
|---|---|
| date | Wed, 29 Nov 2006 22:07:38 +0000 |
| parents | 003d83da9932 |
| children | d835809f45ec |
| 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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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
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diff
changeset
|
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 /* XXX TO DO | |
| 19 - re-indent this file (should be done) | |
| 20 - internal error checking (freeing memory, etc.) | |
| 21 - syntax errors | |
| 22 */ | |
| 23 | |
| 24 /* Data structure used internally */ | |
| 25 struct compiling { | |
|
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
|
26 char *c_encoding; /* source encoding */ |
|
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
|
27 PyArena *c_arena; /* arena for allocating memeory */ |
| 35742 | 28 }; |
| 29 | |
| 30 static asdl_seq *seq_for_testlist(struct compiling *, const node *); | |
| 31 static expr_ty ast_for_expr(struct compiling *, const node *); | |
| 32 static stmt_ty ast_for_stmt(struct compiling *, const node *); | |
| 33 static asdl_seq *ast_for_suite(struct compiling *, const node *); | |
|
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Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
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changeset
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34 static asdl_seq *ast_for_exprlist(struct compiling *, const node *, expr_context_ty); |
|
35798
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Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
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changeset
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35 static expr_ty ast_for_testlist(struct compiling *, const node *); |
|
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
35771
diff
changeset
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36 static expr_ty ast_for_testlist_gexp(struct compiling *, const node *); |
| 35742 | 37 |
| 38 /* Note different signature for ast_for_call */ | |
| 39 static expr_ty ast_for_call(struct compiling *, const node *, expr_ty); | |
| 40 | |
| 41 static PyObject *parsenumber(const char *); | |
| 42 static PyObject *parsestr(const char *s, const char *encoding); | |
| 43 static PyObject *parsestrplus(struct compiling *, const node *n); | |
| 44 | |
| 45 #ifndef LINENO | |
| 46 #define LINENO(n) ((n)->n_lineno) | |
| 47 #endif | |
| 48 | |
|
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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
49 static identifier |
|
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
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50 new_identifier(const char* n, PyArena *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
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51 PyObject* id = PyString_InternFromString(n); |
|
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
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52 PyArena_AddPyObject(arena, id); |
|
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
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53 return id; |
| 35742 | 54 } |
| 55 | |
|
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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
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56 #define NEW_IDENTIFIER(n) new_identifier(STR(n), c->c_arena) |
| 35742 | 57 |
| 58 /* This routine provides an invalid object for the syntax error. | |
| 59 The outermost routine must unpack this error and create the | |
| 60 proper object. We do this so that we don't have to pass | |
| 61 the filename to everything function. | |
| 62 | |
| 63 XXX Maybe we should just pass the filename... | |
| 64 */ | |
| 65 | |
| 66 static int | |
| 67 ast_error(const node *n, const char *errstr) | |
| 68 { | |
| 69 PyObject *u = Py_BuildValue("zi", errstr, LINENO(n)); | |
| 70 if (!u) | |
| 71 return 0; | |
| 72 PyErr_SetObject(PyExc_SyntaxError, u); | |
| 73 Py_DECREF(u); | |
| 74 return 0; | |
| 75 } | |
| 76 | |
| 77 static void | |
| 78 ast_error_finish(const char *filename) | |
| 79 { | |
| 80 PyObject *type, *value, *tback, *errstr, *loc, *tmp; | |
|
36231
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Fix icc warnings: conversion from "long" to "int" may lose significant bits
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parents:
36224
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81 long lineno; |
| 35742 | 82 |
| 83 assert(PyErr_Occurred()); | |
| 84 if (!PyErr_ExceptionMatches(PyExc_SyntaxError)) | |
| 85 return; | |
| 86 | |
| 87 PyErr_Fetch(&type, &value, &tback); | |
| 88 errstr = PyTuple_GetItem(value, 0); | |
| 89 if (!errstr) | |
| 90 return; | |
| 91 Py_INCREF(errstr); | |
| 92 lineno = PyInt_AsLong(PyTuple_GetItem(value, 1)); | |
|
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SF #1370197, memory leak - ast_error_finish (in error conditions).
Neal Norwitz <nnorwitz@gmail.com>
parents:
35990
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93 if (lineno == -1) { |
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cc3261597136
SF #1370197, memory leak - ast_error_finish (in error conditions).
Neal Norwitz <nnorwitz@gmail.com>
parents:
35990
diff
changeset
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94 Py_DECREF(errstr); |
| 35742 | 95 return; |
|
36000
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SF #1370197, memory leak - ast_error_finish (in error conditions).
Neal Norwitz <nnorwitz@gmail.com>
parents:
35990
diff
changeset
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96 } |
| 35742 | 97 Py_DECREF(value); |
| 98 | |
| 99 loc = PyErr_ProgramText(filename, lineno); | |
| 100 if (!loc) { | |
| 101 Py_INCREF(Py_None); | |
| 102 loc = Py_None; | |
| 103 } | |
|
36231
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Fix icc warnings: conversion from "long" to "int" may lose significant bits
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parents:
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104 tmp = Py_BuildValue("(zlOO)", filename, lineno, Py_None, loc); |
| 35742 | 105 Py_DECREF(loc); |
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36000
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SF #1370197, memory leak - ast_error_finish (in error conditions).
Neal Norwitz <nnorwitz@gmail.com>
parents:
35990
diff
changeset
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106 if (!tmp) { |
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cc3261597136
SF #1370197, memory leak - ast_error_finish (in error conditions).
Neal Norwitz <nnorwitz@gmail.com>
parents:
35990
diff
changeset
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107 Py_DECREF(errstr); |
| 35742 | 108 return; |
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36000
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SF #1370197, memory leak - ast_error_finish (in error conditions).
Neal Norwitz <nnorwitz@gmail.com>
parents:
35990
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109 } |
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Replace Py_BuildValue("OO") by PyTuple_Pack.
Georg Brandl <georg@python.org>
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110 value = PyTuple_Pack(2, errstr, tmp); |
| 35742 | 111 Py_DECREF(errstr); |
| 112 Py_DECREF(tmp); | |
| 113 if (!value) | |
| 114 return; | |
| 115 PyErr_Restore(type, value, tback); | |
| 116 } | |
| 117 | |
| 118 /* num_stmts() returns number of contained statements. | |
| 119 | |
| 120 Use this routine to determine how big a sequence is needed for | |
| 121 the statements in a parse tree. Its raison d'etre is this bit of | |
| 122 grammar: | |
| 123 | |
| 124 stmt: simple_stmt | compound_stmt | |
| 125 simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE | |
| 126 | |
| 127 A simple_stmt can contain multiple small_stmt elements joined | |
| 128 by semicolons. If the arg is a simple_stmt, the number of | |
| 129 small_stmt elements is returned. | |
| 130 */ | |
| 131 | |
| 132 static int | |
| 133 num_stmts(const node *n) | |
| 134 { | |
| 135 int i, l; | |
| 136 node *ch; | |
| 137 | |
| 138 switch (TYPE(n)) { | |
| 139 case single_input: | |
| 140 if (TYPE(CHILD(n, 0)) == NEWLINE) | |
| 141 return 0; | |
| 142 else | |
| 143 return num_stmts(CHILD(n, 0)); | |
| 144 case file_input: | |
| 145 l = 0; | |
| 146 for (i = 0; i < NCH(n); i++) { | |
| 147 ch = CHILD(n, i); | |
| 148 if (TYPE(ch) == stmt) | |
| 149 l += num_stmts(ch); | |
| 150 } | |
| 151 return l; | |
| 152 case stmt: | |
| 153 return num_stmts(CHILD(n, 0)); | |
| 154 case compound_stmt: | |
| 155 return 1; | |
| 156 case simple_stmt: | |
| 157 return NCH(n) / 2; /* Divide by 2 to remove count of semi-colons */ | |
| 158 case suite: | |
| 159 if (NCH(n) == 1) | |
| 160 return num_stmts(CHILD(n, 0)); | |
| 161 else { | |
| 162 l = 0; | |
| 163 for (i = 2; i < (NCH(n) - 1); i++) | |
| 164 l += num_stmts(CHILD(n, i)); | |
| 165 return l; | |
| 166 } | |
| 167 default: { | |
| 168 char buf[128]; | |
| 169 | |
| 170 sprintf(buf, "Non-statement found: %d %d\n", | |
| 171 TYPE(n), NCH(n)); | |
| 172 Py_FatalError(buf); | |
| 173 } | |
| 174 } | |
| 175 assert(0); | |
| 176 return 0; | |
| 177 } | |
| 178 | |
| 179 /* Transform the CST rooted at node * to the appropriate AST | |
| 180 */ | |
| 181 | |
| 182 mod_ty | |
|
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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
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183 PyAST_FromNode(const node *n, PyCompilerFlags *flags, const char *filename, |
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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
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184 PyArena *arena) |
| 35742 | 185 { |
|
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Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
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186 int i, j, k, num; |
| 35742 | 187 asdl_seq *stmts = NULL; |
| 188 stmt_ty s; | |
| 189 node *ch; | |
| 190 struct compiling c; | |
| 191 | |
| 192 if (flags && flags->cf_flags & PyCF_SOURCE_IS_UTF8) { | |
|
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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
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193 c.c_encoding = "utf-8"; |
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Forward port MvL's fix in 43227:
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parents:
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194 if (TYPE(n) == encoding_decl) { |
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parents:
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changeset
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195 ast_error(n, "encoding declaration in Unicode string"); |
|
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196 goto error; |
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parents:
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changeset
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197 } |
| 35742 | 198 } else if (TYPE(n) == encoding_decl) { |
| 199 c.c_encoding = STR(n); | |
| 200 n = CHILD(n, 0); | |
| 201 } else { | |
| 202 c.c_encoding = NULL; | |
| 203 } | |
|
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
|
204 c.c_arena = arena; |
| 35742 | 205 |
|
36718
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Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
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206 k = 0; |
| 35742 | 207 switch (TYPE(n)) { |
| 208 case file_input: | |
|
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
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209 stmts = asdl_seq_new(num_stmts(n), arena); |
| 35742 | 210 if (!stmts) |
| 211 return NULL; | |
| 212 for (i = 0; i < NCH(n) - 1; i++) { | |
| 213 ch = CHILD(n, i); | |
| 214 if (TYPE(ch) == NEWLINE) | |
| 215 continue; | |
| 216 REQ(ch, stmt); | |
| 217 num = num_stmts(ch); | |
| 218 if (num == 1) { | |
| 219 s = ast_for_stmt(&c, ch); | |
| 220 if (!s) | |
| 221 goto error; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
222 asdl_seq_SET(stmts, k++, s); |
| 35742 | 223 } |
| 224 else { | |
| 225 ch = CHILD(ch, 0); | |
| 226 REQ(ch, simple_stmt); | |
| 227 for (j = 0; j < num; j++) { | |
| 228 s = ast_for_stmt(&c, CHILD(ch, j * 2)); | |
| 229 if (!s) | |
| 230 goto error; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
231 asdl_seq_SET(stmts, k++, s); |
| 35742 | 232 } |
| 233 } | |
| 234 } | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
235 return Module(stmts, arena); |
| 35742 | 236 case eval_input: { |
| 237 expr_ty testlist_ast; | |
| 238 | |
| 239 /* XXX Why not gen_for here? */ | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
240 testlist_ast = ast_for_testlist(&c, CHILD(n, 0)); |
| 35742 | 241 if (!testlist_ast) |
| 242 goto error; | |
|
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
|
243 return Expression(testlist_ast, arena); |
| 35742 | 244 } |
| 245 case single_input: | |
| 246 if (TYPE(CHILD(n, 0)) == NEWLINE) { | |
|
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
|
247 stmts = asdl_seq_new(1, arena); |
| 35742 | 248 if (!stmts) |
| 249 goto error; | |
|
37453
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Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
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250 asdl_seq_SET(stmts, 0, Pass(n->n_lineno, n->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
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parents:
37235
diff
changeset
|
251 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
|
252 return Interactive(stmts, arena); |
| 35742 | 253 } |
| 254 else { | |
| 255 n = CHILD(n, 0); | |
| 256 num = 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
|
257 stmts = asdl_seq_new(num, arena); |
| 35742 | 258 if (!stmts) |
| 259 goto error; | |
| 260 if (num == 1) { | |
|
36224
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Fix icc warnings: shadowing local variables
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
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261 s = ast_for_stmt(&c, n); |
| 35742 | 262 if (!s) |
| 263 goto error; | |
| 264 asdl_seq_SET(stmts, 0, s); | |
| 265 } | |
| 266 else { | |
| 267 /* Only a simple_stmt can contain multiple statements. */ | |
| 268 REQ(n, simple_stmt); | |
| 269 for (i = 0; i < NCH(n); i += 2) { | |
| 270 if (TYPE(CHILD(n, i)) == NEWLINE) | |
| 271 break; | |
| 272 s = ast_for_stmt(&c, CHILD(n, i)); | |
| 273 if (!s) | |
| 274 goto error; | |
| 275 asdl_seq_SET(stmts, i / 2, s); | |
| 276 } | |
| 277 } | |
| 278 | |
|
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
|
279 return Interactive(stmts, arena); |
| 35742 | 280 } |
| 281 default: | |
| 282 goto error; | |
| 283 } | |
| 284 error: | |
| 285 ast_error_finish(filename); | |
| 286 return NULL; | |
| 287 } | |
| 288 | |
| 289 /* Return the AST repr. of the operator represented as syntax (|, ^, etc.) | |
| 290 */ | |
| 291 | |
| 292 static operator_ty | |
| 293 get_operator(const node *n) | |
| 294 { | |
| 295 switch (TYPE(n)) { | |
| 296 case VBAR: | |
| 297 return BitOr; | |
| 298 case CIRCUMFLEX: | |
| 299 return BitXor; | |
| 300 case AMPER: | |
| 301 return BitAnd; | |
| 302 case LEFTSHIFT: | |
| 303 return LShift; | |
| 304 case RIGHTSHIFT: | |
| 305 return RShift; | |
| 306 case PLUS: | |
| 307 return Add; | |
| 308 case MINUS: | |
| 309 return Sub; | |
| 310 case STAR: | |
| 311 return Mult; | |
| 312 case SLASH: | |
| 313 return Div; | |
| 314 case DOUBLESLASH: | |
| 315 return FloorDiv; | |
| 316 case PERCENT: | |
| 317 return Mod; | |
| 318 default: | |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
319 return (operator_ty)0; |
| 35742 | 320 } |
| 321 } | |
| 322 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
323 /* Set the context ctx for expr_ty e, recursively traversing e. |
| 35742 | 324 |
| 325 Only sets context for expr kinds that "can appear in assignment context" | |
| 326 (according to ../Parser/Python.asdl). For other expr kinds, it sets | |
| 327 an appropriate syntax error and returns false. | |
| 328 */ | |
| 329 | |
| 330 static int | |
| 331 set_context(expr_ty e, expr_context_ty ctx, const node *n) | |
| 332 { | |
| 333 asdl_seq *s = NULL; | |
|
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Improved handling of syntax errors.
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parents:
36242
diff
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334 /* If a particular expression type can't be used for assign / delete, |
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Improved handling of syntax errors.
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parents:
36242
diff
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|
335 set expr_name to its name and an error message will be generated. |
|
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Improved handling of syntax errors.
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parents:
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336 */ |
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Improved handling of syntax errors.
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parents:
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337 const char* expr_name = NULL; |
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a625e8876407
Improved handling of syntax errors.
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parents:
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338 |
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a625e8876407
Improved handling of syntax errors.
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parents:
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changeset
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339 /* The ast defines augmented store and load contexts, but the |
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a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
340 implementation here doesn't actually use them. The code may be |
|
a625e8876407
Improved handling of syntax errors.
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parents:
36242
diff
changeset
|
341 a little more complex than necessary as a result. It also means |
|
39037
9f70f6ba7b69
Fix AST compiler bug #1501934: incorrect LOAD/STORE_GLOBAL generation.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
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342 that expressions in an augmented assignment have a Store context. |
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343 Consider restructuring so that augmented assignment uses |
|
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b6d2f6fd3e11
PEP 343 -- the with-statement.
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|
344 set_context(), too. |
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345 */ |
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346 assert(ctx != AugStore && ctx != AugLoad); |
| 35742 | 347 |
| 348 switch (e->kind) { | |
| 349 case Attribute_kind: | |
| 350 if (ctx == Store && | |
|
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|
351 !strcmp(PyString_AS_STRING(e->v.Attribute.attr), "None")) { |
| 35742 | 352 return ast_error(n, "assignment to None"); |
| 353 } | |
| 354 e->v.Attribute.ctx = ctx; | |
| 355 break; | |
| 356 case Subscript_kind: | |
| 357 e->v.Subscript.ctx = ctx; | |
| 358 break; | |
| 359 case Name_kind: | |
| 360 if (ctx == Store && | |
| 361 !strcmp(PyString_AS_STRING(e->v.Name.id), "None")) { | |
| 362 return ast_error(n, "assignment to None"); | |
| 363 } | |
| 364 e->v.Name.ctx = ctx; | |
| 365 break; | |
| 366 case List_kind: | |
| 367 e->v.List.ctx = ctx; | |
| 368 s = e->v.List.elts; | |
| 369 break; | |
| 370 case Tuple_kind: | |
| 371 if (asdl_seq_LEN(e->v.Tuple.elts) == 0) | |
| 372 return ast_error(n, "can't assign to ()"); | |
| 373 e->v.Tuple.ctx = ctx; | |
| 374 s = e->v.Tuple.elts; | |
| 375 break; | |
|
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376 case Lambda_kind: |
|
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377 expr_name = "lambda"; |
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378 break; |
| 35742 | 379 case Call_kind: |
|
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380 expr_name = "function call"; |
| 35742 | 381 break; |
|
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382 case BoolOp_kind: |
| 35742 | 383 case BinOp_kind: |
|
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384 case UnaryOp_kind: |
|
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385 expr_name = "operator"; |
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386 break; |
| 35742 | 387 case GeneratorExp_kind: |
|
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388 expr_name = "generator expression"; |
|
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389 break; |
|
39300
b745b3fd66a6
Patch #1531113: Fix augmented assignment with yield expressions.
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
390 case Yield_kind: |
|
b745b3fd66a6
Patch #1531113: Fix augmented assignment with yield expressions.
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parents:
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changeset
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391 expr_name = "yield expression"; |
|
b745b3fd66a6
Patch #1531113: Fix augmented assignment with yield expressions.
Neal Norwitz <nnorwitz@gmail.com>
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392 break; |
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393 case ListComp_kind: |
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394 expr_name = "list comprehension"; |
|
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395 break; |
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|
396 case Dict_kind: |
| 35742 | 397 case Num_kind: |
| 398 case Str_kind: | |
|
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399 expr_name = "literal"; |
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400 break; |
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|
401 case Compare_kind: |
|
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|
402 expr_name = "comparison"; |
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|
403 break; |
|
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|
404 case Repr_kind: |
|
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|
405 expr_name = "repr"; |
|
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changeset
|
406 break; |
|
38181
ab704b99e150
- Bug #1487966: Fix SystemError with conditional expression in assignment
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
407 case IfExp_kind: |
|
ab704b99e150
- Bug #1487966: Fix SystemError with conditional expression in assignment
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diff
changeset
|
408 expr_name = "conditional expression"; |
|
ab704b99e150
- Bug #1487966: Fix SystemError with conditional expression in assignment
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changeset
|
409 break; |
|
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|
410 default: |
|
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|
411 PyErr_Format(PyExc_SystemError, |
|
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diff
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|
412 "unexpected expression in assignment %d (line %d)", |
|
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diff
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|
413 e->kind, e->lineno); |
|
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changeset
|
414 return 0; |
| 35742 | 415 } |
|
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|
416 /* Check for error string set by switch */ |
|
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|
417 if (expr_name) { |
|
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|
418 char buf[300]; |
|
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|
419 PyOS_snprintf(buf, sizeof(buf), |
|
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diff
changeset
|
420 "can't %s %s", |
|
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changeset
|
421 ctx == Store ? "assign to" : "delete", |
|
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diff
changeset
|
422 expr_name); |
|
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|
423 return ast_error(n, buf); |
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|
424 } |
|
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|
425 |
| 35742 | 426 /* If the LHS is a list or tuple, we need to set the assignment |
|
36718
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Remove asdl_seq_APPEND() and simplify asdl seq implementation.
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diff
changeset
|
427 context for all the contained elements. |
| 35742 | 428 */ |
| 429 if (s) { | |
| 430 int i; | |
| 431 | |
| 432 for (i = 0; i < asdl_seq_LEN(s); i++) { | |
|
37604
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Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
433 if (!set_context((expr_ty)asdl_seq_GET(s, i), ctx, n)) |
| 35742 | 434 return 0; |
| 435 } | |
| 436 } | |
| 437 return 1; | |
| 438 } | |
| 439 | |
| 440 static operator_ty | |
| 441 ast_for_augassign(const node *n) | |
| 442 { | |
| 443 REQ(n, augassign); | |
| 444 n = CHILD(n, 0); | |
| 445 switch (STR(n)[0]) { | |
| 446 case '+': | |
| 447 return Add; | |
| 448 case '-': | |
| 449 return Sub; | |
| 450 case '/': | |
| 451 if (STR(n)[1] == '/') | |
| 452 return FloorDiv; | |
| 453 else | |
| 454 return Div; | |
| 455 case '%': | |
| 456 return Mod; | |
| 457 case '<': | |
| 458 return LShift; | |
| 459 case '>': | |
| 460 return RShift; | |
| 461 case '&': | |
| 462 return BitAnd; | |
| 463 case '^': | |
| 464 return BitXor; | |
| 465 case '|': | |
| 466 return BitOr; | |
| 467 case '*': | |
| 468 if (STR(n)[1] == '*') | |
| 469 return Pow; | |
| 470 else | |
| 471 return Mult; | |
| 472 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
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35868
diff
changeset
|
473 PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n)); |
|
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Convert 0 to their respective enum types. Convert
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37597
diff
changeset
|
474 return (operator_ty)0; |
| 35742 | 475 } |
| 476 } | |
| 477 | |
| 478 static cmpop_ty | |
| 479 ast_for_comp_op(const node *n) | |
| 480 { | |
| 481 /* comp_op: '<'|'>'|'=='|'>='|'<='|'<>'|'!='|'in'|'not' 'in'|'is' | |
| 482 |'is' 'not' | |
| 483 */ | |
| 484 REQ(n, comp_op); | |
| 485 if (NCH(n) == 1) { | |
| 486 n = CHILD(n, 0); | |
| 487 switch (TYPE(n)) { | |
| 488 case LESS: | |
| 489 return Lt; | |
| 490 case GREATER: | |
| 491 return Gt; | |
| 492 case EQEQUAL: /* == */ | |
| 493 return Eq; | |
| 494 case LESSEQUAL: | |
| 495 return LtE; | |
| 496 case GREATEREQUAL: | |
| 497 return GtE; | |
| 498 case NOTEQUAL: | |
| 499 return NotEq; | |
| 500 case NAME: | |
| 501 if (strcmp(STR(n), "in") == 0) | |
| 502 return In; | |
| 503 if (strcmp(STR(n), "is") == 0) | |
| 504 return Is; | |
| 505 default: | |
|
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Convert all internal errors from Exception to SystemError
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changeset
|
506 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s", |
| 35742 | 507 STR(n)); |
|
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changeset
|
508 return (cmpop_ty)0; |
| 35742 | 509 } |
| 510 } | |
| 511 else if (NCH(n) == 2) { | |
| 512 /* handle "not in" and "is not" */ | |
| 513 switch (TYPE(CHILD(n, 0))) { | |
| 514 case NAME: | |
| 515 if (strcmp(STR(CHILD(n, 1)), "in") == 0) | |
| 516 return NotIn; | |
| 517 if (strcmp(STR(CHILD(n, 0)), "is") == 0) | |
| 518 return IsNot; | |
| 519 default: | |
|
35870
f531c05cd240
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35868
diff
changeset
|
520 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s", |
| 35742 | 521 STR(CHILD(n, 0)), STR(CHILD(n, 1))); |
|
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changeset
|
522 return (cmpop_ty)0; |
| 35742 | 523 } |
| 524 } | |
|
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diff
changeset
|
525 PyErr_Format(PyExc_SystemError, "invalid comp_op: has %d children", |
| 35742 | 526 NCH(n)); |
|
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diff
changeset
|
527 return (cmpop_ty)0; |
| 35742 | 528 } |
| 529 | |
| 530 static asdl_seq * | |
| 531 seq_for_testlist(struct compiling *c, const node *n) | |
| 532 { | |
| 533 /* testlist: test (',' test)* [','] */ | |
|
35759
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
534 asdl_seq *seq; |
|
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
535 expr_ty expression; |
|
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
536 int i; |
| 35742 | 537 assert(TYPE(n) == testlist |
| 538 || TYPE(n) == listmaker | |
| 539 || TYPE(n) == testlist_gexp | |
| 540 || TYPE(n) == testlist_safe | |
| 40288 | 541 || TYPE(n) == testlist1 |
| 35742 | 542 ); |
| 543 | |
|
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
|
544 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 545 if (!seq) |
| 546 return NULL; | |
| 547 | |
| 548 for (i = 0; i < NCH(n); i += 2) { | |
|
36670
296cda9b3e2f
Fix assertion errors in debug build, brought on by PEP 308 patch.
Thomas Wouters <thomas@python.org>
parents:
36666
diff
changeset
|
549 assert(TYPE(CHILD(n, i)) == test || TYPE(CHILD(n, i)) == old_test); |
| 35742 | 550 |
| 551 expression = ast_for_expr(c, CHILD(n, i)); | |
|
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
|
552 if (!expression) |
| 35742 | 553 return NULL; |
| 554 | |
| 555 assert(i / 2 < seq->size); | |
| 556 asdl_seq_SET(seq, i / 2, expression); | |
| 557 } | |
| 558 return seq; | |
| 559 } | |
| 560 | |
| 561 static expr_ty | |
|
36065
ea083efdc96c
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changeset
|
562 compiler_complex_args(struct compiling *c, const node *n) |
| 35742 | 563 { |
| 564 int i, len = (NCH(n) + 1) / 2; | |
| 565 expr_ty result; | |
|
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parents:
36001
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changeset
|
566 asdl_seq *args = asdl_seq_new(len, c->c_arena); |
| 35742 | 567 if (!args) |
| 568 return NULL; | |
| 569 | |
| 39887 | 570 /* fpdef: NAME | '(' fplist ')' |
| 571 fplist: fpdef (',' fpdef)* [','] | |
| 572 */ | |
| 35742 | 573 REQ(n, fplist); |
| 574 for (i = 0; i < len; i++) { | |
| 39887 | 575 const node *fpdef_node = CHILD(n, 2*i); |
| 576 const node *child; | |
| 35742 | 577 expr_ty arg; |
| 39887 | 578 set_name: |
| 579 /* fpdef_node is either a NAME or an fplist */ | |
| 580 child = CHILD(fpdef_node, 0); | |
| 35742 | 581 if (TYPE(child) == NAME) { |
|
36718
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diff
changeset
|
582 if (!strcmp(STR(child), "None")) { |
|
45e6f901902c
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Jeremy Hylton <jeremy@alum.mit.edu>
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changeset
|
583 ast_error(child, "assignment to None"); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
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diff
changeset
|
584 return NULL; |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
585 } |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
586 arg = Name(NEW_IDENTIFIER(child), Store, LINENO(child), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
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diff
changeset
|
587 child->n_col_offset, c->c_arena); |
|
36718
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|
588 } |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
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changeset
|
589 else { |
| 39887 | 590 assert(TYPE(fpdef_node) == fpdef); |
| 591 /* fpdef_node[0] is not a name, so it must be a '(', get CHILD[1] */ | |
| 592 child = CHILD(fpdef_node, 1); | |
| 593 assert(TYPE(child) == fplist); | |
| 594 /* NCH == 1 means we have (x), we need to elide the extra parens */ | |
| 595 if (NCH(child) == 1) { | |
| 596 fpdef_node = CHILD(child, 0); | |
| 597 assert(TYPE(fpdef_node) == fpdef); | |
| 598 goto set_name; | |
| 599 } | |
| 600 arg = compiler_complex_args(c, child); | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
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changeset
|
601 } |
| 35742 | 602 asdl_seq_SET(args, i, arg); |
| 603 } | |
| 604 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
605 result = Tuple(args, Store, LINENO(n), n->n_col_offset, c->c_arena); |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
606 if (!set_context(result, Store, n)) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
607 return NULL; |
| 35742 | 608 return result; |
| 609 } | |
| 610 | |
| 611 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
612 /* Create AST for argument list. */ |
| 35742 | 613 |
| 614 static arguments_ty | |
| 615 ast_for_arguments(struct compiling *c, const node *n) | |
| 616 { | |
| 617 /* parameters: '(' [varargslist] ')' | |
| 618 varargslist: (fpdef ['=' test] ',')* ('*' NAME [',' '**' NAME] | |
| 619 | '**' NAME) | fpdef ['=' test] (',' fpdef ['=' test])* [','] | |
| 620 */ | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
621 int i, j, k, n_args = 0, n_defaults = 0, found_default = 0; |
| 35742 | 622 asdl_seq *args, *defaults; |
| 623 identifier vararg = NULL, kwarg = NULL; | |
| 624 node *ch; | |
| 625 | |
| 626 if (TYPE(n) == parameters) { | |
| 627 if (NCH(n) == 2) /* () as argument list */ | |
|
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
|
628 return arguments(NULL, NULL, NULL, NULL, c->c_arena); |
| 35742 | 629 n = CHILD(n, 1); |
| 630 } | |
| 631 REQ(n, varargslist); | |
| 632 | |
| 633 /* first count the number of normal args & defaults */ | |
| 634 for (i = 0; i < NCH(n); i++) { | |
| 635 ch = CHILD(n, i); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
636 if (TYPE(ch) == fpdef) |
| 35742 | 637 n_args++; |
| 638 if (TYPE(ch) == EQUAL) | |
| 639 n_defaults++; | |
| 640 } | |
|
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
|
641 args = (n_args ? asdl_seq_new(n_args, c->c_arena) : NULL); |
| 35742 | 642 if (!args && n_args) |
|
39317
d0e6170704de
Add some asserts and update comments
Neal Norwitz <nnorwitz@gmail.com>
parents:
39300
diff
changeset
|
643 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
|
644 defaults = (n_defaults ? asdl_seq_new(n_defaults, c->c_arena) : NULL); |
| 35742 | 645 if (!defaults && n_defaults) |
|
39317
d0e6170704de
Add some asserts and update comments
Neal Norwitz <nnorwitz@gmail.com>
parents:
39300
diff
changeset
|
646 return NULL; /* Don't need to goto error; no objects allocated */ |
| 35742 | 647 |
| 648 /* fpdef: NAME | '(' fplist ')' | |
| 649 fplist: fpdef (',' fpdef)* [','] | |
| 650 */ | |
| 651 i = 0; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
652 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
|
653 k = 0; /* index for args */ |
| 35742 | 654 while (i < NCH(n)) { |
| 655 ch = CHILD(n, i); | |
| 656 switch (TYPE(ch)) { | |
| 657 case fpdef: | |
| 39887 | 658 handle_fpdef: |
| 35742 | 659 /* XXX Need to worry about checking if TYPE(CHILD(n, i+1)) is |
| 660 anything other than EQUAL or a comma? */ | |
| 661 /* XXX Should NCH(n) check be made a separate check? */ | |
| 662 if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) { | |
|
39131
7c09b66f04bd
Handle more memory allocation failures without crashing.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39067
diff
changeset
|
663 expr_ty expression = ast_for_expr(c, CHILD(n, i + 2)); |
|
7c09b66f04bd
Handle more memory allocation failures without crashing.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39067
diff
changeset
|
664 if (!expression) |
|
7c09b66f04bd
Handle more memory allocation failures without crashing.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39067
diff
changeset
|
665 goto error; |
|
39317
d0e6170704de
Add some asserts and update comments
Neal Norwitz <nnorwitz@gmail.com>
parents:
39300
diff
changeset
|
666 assert(defaults != NULL); |
|
39131
7c09b66f04bd
Handle more memory allocation failures without crashing.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39067
diff
changeset
|
667 asdl_seq_SET(defaults, j++, expression); |
| 35742 | 668 i += 2; |
| 669 found_default = 1; | |
| 670 } | |
| 671 else if (found_default) { | |
| 672 ast_error(n, | |
| 673 "non-default argument follows default argument"); | |
| 674 goto error; | |
| 675 } | |
| 676 if (NCH(ch) == 3) { | |
|
37235
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
677 ch = CHILD(ch, 1); |
|
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
678 /* def foo((x)): is not complex, special case. */ |
|
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
679 if (NCH(ch) != 1) { |
|
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
680 /* We have complex arguments, setup for unpacking. */ |
|
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
681 asdl_seq_SET(args, k++, compiler_complex_args(c, ch)); |
|
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
682 } else { |
|
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
683 /* def foo((x)): setup for checking NAME below. */ |
| 39887 | 684 /* Loop because there can be many parens and tuple |
| 685 upacking mixed in. */ | |
|
37235
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
686 ch = CHILD(ch, 0); |
| 39887 | 687 assert(TYPE(ch) == fpdef); |
| 688 goto handle_fpdef; | |
|
37235
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
689 } |
|
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
690 } |
|
9d8b33aff60c
Fix SF bug #1458903 with AST compiler.
Neal Norwitz <nnorwitz@gmail.com>
parents:
37162
diff
changeset
|
691 if (TYPE(CHILD(ch, 0)) == NAME) { |
|
35759
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
692 expr_ty name; |
| 35742 | 693 if (!strcmp(STR(CHILD(ch, 0)), "None")) { |
| 694 ast_error(CHILD(ch, 0), "assignment to None"); | |
| 695 goto error; | |
| 696 } | |
|
35759
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
697 name = Name(NEW_IDENTIFIER(CHILD(ch, 0)), |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
698 Param, LINENO(ch), ch->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
699 c->c_arena); |
| 35742 | 700 if (!name) |
| 701 goto error; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
702 asdl_seq_SET(args, k++, name); |
| 35742 | 703 |
| 704 } | |
| 705 i += 2; /* the name and the comma */ | |
| 706 break; | |
| 707 case STAR: | |
| 708 if (!strcmp(STR(CHILD(n, i+1)), "None")) { | |
| 709 ast_error(CHILD(n, i+1), "assignment to None"); | |
| 710 goto error; | |
| 711 } | |
| 712 vararg = NEW_IDENTIFIER(CHILD(n, i+1)); | |
| 713 i += 3; | |
| 714 break; | |
| 715 case DOUBLESTAR: | |
| 716 if (!strcmp(STR(CHILD(n, i+1)), "None")) { | |
| 717 ast_error(CHILD(n, i+1), "assignment to None"); | |
| 718 goto error; | |
| 719 } | |
| 720 kwarg = NEW_IDENTIFIER(CHILD(n, i+1)); | |
| 721 i += 3; | |
| 722 break; | |
| 723 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
724 PyErr_Format(PyExc_SystemError, |
| 35742 | 725 "unexpected node in varargslist: %d @ %d", |
| 726 TYPE(ch), i); | |
| 727 goto error; | |
| 728 } | |
| 729 } | |
| 730 | |
|
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
|
731 return arguments(args, vararg, kwarg, defaults, c->c_arena); |
| 35742 | 732 |
| 733 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
|
734 Py_XDECREF(vararg); |
|
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
735 Py_XDECREF(kwarg); |
| 35742 | 736 return NULL; |
| 737 } | |
| 738 | |
| 739 static expr_ty | |
| 740 ast_for_dotted_name(struct compiling *c, const node *n) | |
| 741 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
742 expr_ty e; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
743 identifier id; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
744 int lineno, col_offset; |
| 35742 | 745 int i; |
| 746 | |
| 747 REQ(n, dotted_name); | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
748 |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
749 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
750 col_offset = n->n_col_offset; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
751 |
| 35742 | 752 id = NEW_IDENTIFIER(CHILD(n, 0)); |
| 753 if (!id) | |
|
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
|
754 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
755 e = Name(id, Load, lineno, col_offset, c->c_arena); |
| 35742 | 756 if (!e) |
|
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
|
757 return NULL; |
| 35742 | 758 |
| 759 for (i = 2; i < NCH(n); i+=2) { | |
| 760 id = NEW_IDENTIFIER(CHILD(n, i)); | |
| 761 if (!id) | |
|
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
|
762 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
763 e = Attribute(e, id, Load, lineno, col_offset, c->c_arena); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
764 if (!e) |
|
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
|
765 return NULL; |
| 35742 | 766 } |
| 767 | |
| 768 return e; | |
| 769 } | |
| 770 | |
| 771 static expr_ty | |
| 772 ast_for_decorator(struct compiling *c, const node *n) | |
| 773 { | |
| 774 /* decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE */ | |
| 775 expr_ty d = NULL; | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
776 expr_ty name_expr; |
| 35742 | 777 |
| 778 REQ(n, decorator); | |
|
36418
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
779 REQ(CHILD(n, 0), AT); |
|
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
780 REQ(RCHILD(n, -1), NEWLINE); |
| 35742 | 781 |
| 782 name_expr = ast_for_dotted_name(c, CHILD(n, 1)); | |
| 783 if (!name_expr) | |
|
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
|
784 return NULL; |
| 35742 | 785 |
| 786 if (NCH(n) == 3) { /* No arguments */ | |
| 787 d = name_expr; | |
| 788 name_expr = NULL; | |
| 789 } | |
| 790 else if (NCH(n) == 5) { /* Call with no arguments */ | |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
791 d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
792 n->n_col_offset, c->c_arena); |
| 35742 | 793 if (!d) |
|
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
|
794 return NULL; |
| 35742 | 795 name_expr = NULL; |
| 796 } | |
| 797 else { | |
| 798 d = ast_for_call(c, CHILD(n, 3), name_expr); | |
| 799 if (!d) | |
|
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
|
800 return NULL; |
| 35742 | 801 name_expr = NULL; |
| 802 } | |
| 803 | |
| 804 return d; | |
| 805 } | |
| 806 | |
| 807 static asdl_seq* | |
| 808 ast_for_decorators(struct compiling *c, const node *n) | |
| 809 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
810 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
|
811 expr_ty d; |
| 35742 | 812 int i; |
| 813 | |
| 814 REQ(n, decorators); | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
815 decorator_seq = asdl_seq_new(NCH(n), c->c_arena); |
| 35742 | 816 if (!decorator_seq) |
| 817 return NULL; | |
| 818 | |
| 819 for (i = 0; i < NCH(n); i++) { | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
820 d = ast_for_decorator(c, CHILD(n, i)); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
821 if (!d) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
822 return NULL; |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
823 asdl_seq_SET(decorator_seq, i, d); |
| 35742 | 824 } |
| 825 return decorator_seq; | |
| 826 } | |
| 827 | |
| 828 static stmt_ty | |
| 829 ast_for_funcdef(struct compiling *c, const node *n) | |
| 830 { | |
| 831 /* funcdef: 'def' [decorators] NAME parameters ':' suite */ | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
832 identifier name; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
833 arguments_ty args; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
834 asdl_seq *body; |
| 35742 | 835 asdl_seq *decorator_seq = NULL; |
| 836 int name_i; | |
| 837 | |
| 838 REQ(n, funcdef); | |
| 839 | |
| 840 if (NCH(n) == 6) { /* decorators are present */ | |
| 841 decorator_seq = ast_for_decorators(c, CHILD(n, 0)); | |
| 842 if (!decorator_seq) | |
|
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
|
843 return NULL; |
| 35742 | 844 name_i = 2; |
| 845 } | |
| 846 else { | |
| 847 name_i = 1; | |
| 848 } | |
| 849 | |
| 850 name = NEW_IDENTIFIER(CHILD(n, name_i)); | |
| 851 if (!name) | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
852 return NULL; |
| 35742 | 853 else if (!strcmp(STR(CHILD(n, name_i)), "None")) { |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
854 ast_error(CHILD(n, name_i), "assignment to None"); |
|
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
|
855 return NULL; |
| 35742 | 856 } |
| 857 args = ast_for_arguments(c, CHILD(n, name_i + 1)); | |
| 858 if (!args) | |
|
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
|
859 return NULL; |
| 35742 | 860 body = ast_for_suite(c, CHILD(n, name_i + 3)); |
| 861 if (!body) | |
|
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
|
862 return NULL; |
| 35742 | 863 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
864 return FunctionDef(name, args, body, decorator_seq, LINENO(n), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
865 n->n_col_offset, c->c_arena); |
| 35742 | 866 } |
| 867 | |
| 868 static expr_ty | |
| 869 ast_for_lambdef(struct compiling *c, const node *n) | |
| 870 { | |
| 871 /* lambdef: 'lambda' [varargslist] ':' test */ | |
| 872 arguments_ty args; | |
| 873 expr_ty expression; | |
| 874 | |
| 875 if (NCH(n) == 3) { | |
|
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
|
876 args = arguments(NULL, NULL, NULL, NULL, c->c_arena); |
| 35742 | 877 if (!args) |
| 878 return NULL; | |
| 879 expression = ast_for_expr(c, CHILD(n, 2)); | |
|
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
|
880 if (!expression) |
| 35742 | 881 return NULL; |
| 882 } | |
| 883 else { | |
| 884 args = ast_for_arguments(c, CHILD(n, 1)); | |
| 885 if (!args) | |
| 886 return NULL; | |
| 887 expression = ast_for_expr(c, CHILD(n, 3)); | |
|
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
|
888 if (!expression) |
| 35742 | 889 return NULL; |
| 890 } | |
| 891 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
892 return Lambda(args, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 893 } |
| 894 | |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
895 static expr_ty |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
896 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
|
897 { |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
898 /* 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
|
899 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
|
900 |
|
36676
67c74efad8c2
Fix old not-reading-pep-308-right artifact.
Thomas Wouters <thomas@python.org>
parents:
36670
diff
changeset
|
901 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
|
902 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
|
903 if (!body) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
904 return NULL; |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
905 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
|
906 if (!expression) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
907 return NULL; |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
908 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
|
909 if (!orelse) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
910 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
|
911 return IfExp(expression, body, orelse, LINENO(n), n->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
912 c->c_arena); |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
913 } |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
914 |
| 35742 | 915 /* Count the number of 'for' loop in a list comprehension. |
| 916 | |
| 917 Helper for ast_for_listcomp(). | |
| 918 */ | |
| 919 | |
| 920 static int | |
| 921 count_list_fors(const node *n) | |
| 922 { | |
| 923 int n_fors = 0; | |
| 924 node *ch = CHILD(n, 1); | |
| 925 | |
| 926 count_list_for: | |
| 927 n_fors++; | |
| 928 REQ(ch, list_for); | |
| 929 if (NCH(ch) == 5) | |
| 930 ch = CHILD(ch, 4); | |
| 931 else | |
| 932 return n_fors; | |
| 933 count_list_iter: | |
| 934 REQ(ch, list_iter); | |
| 935 ch = CHILD(ch, 0); | |
| 936 if (TYPE(ch) == list_for) | |
| 937 goto count_list_for; | |
| 938 else if (TYPE(ch) == list_if) { | |
| 939 if (NCH(ch) == 3) { | |
| 940 ch = CHILD(ch, 2); | |
| 941 goto count_list_iter; | |
| 942 } | |
| 943 else | |
| 944 return n_fors; | |
| 945 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
946 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
947 /* Should never be reached */ |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
948 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
|
949 return -1; |
| 35742 | 950 } |
| 951 | |
| 952 /* Count the number of 'if' statements in a list comprehension. | |
| 953 | |
| 954 Helper for ast_for_listcomp(). | |
| 955 */ | |
| 956 | |
| 957 static int | |
| 958 count_list_ifs(const node *n) | |
| 959 { | |
| 960 int n_ifs = 0; | |
| 961 | |
| 962 count_list_iter: | |
| 963 REQ(n, list_iter); | |
| 964 if (TYPE(CHILD(n, 0)) == list_for) | |
| 965 return n_ifs; | |
| 966 n = CHILD(n, 0); | |
| 967 REQ(n, list_if); | |
| 968 n_ifs++; | |
| 969 if (NCH(n) == 2) | |
| 970 return n_ifs; | |
| 971 n = CHILD(n, 2); | |
| 972 goto count_list_iter; | |
| 973 } | |
| 974 | |
| 975 static expr_ty | |
| 976 ast_for_listcomp(struct compiling *c, const node *n) | |
| 977 { | |
| 978 /* listmaker: test ( list_for | (',' test)* [','] ) | |
| 979 list_for: 'for' exprlist 'in' testlist_safe [list_iter] | |
| 980 list_iter: list_for | list_if | |
| 981 list_if: 'if' test [list_iter] | |
| 982 testlist_safe: test [(',' test)+ [',']] | |
| 983 */ | |
| 984 expr_ty elt; | |
| 985 asdl_seq *listcomps; | |
| 986 int i, n_fors; | |
| 987 node *ch; | |
| 988 | |
| 989 REQ(n, listmaker); | |
| 990 assert(NCH(n) > 1); | |
| 991 | |
| 992 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 993 if (!elt) | |
| 994 return NULL; | |
| 995 | |
| 996 n_fors = count_list_fors(n); | |
| 997 if (n_fors == -1) | |
| 998 return NULL; | |
| 999 | |
|
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
|
1000 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
|
1001 if (!listcomps) |
| 35742 | 1002 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
|
1003 |
| 35742 | 1004 ch = CHILD(n, 1); |
| 1005 for (i = 0; i < n_fors; i++) { | |
| 1006 comprehension_ty lc; | |
| 1007 asdl_seq *t; | |
| 1008 expr_ty expression; | |
|
39754
3300d7492f1a
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
Neal Norwitz <nnorwitz@gmail.com>
parents:
39445
diff
changeset
|
1009 node *for_ch; |
| 35742 | 1010 |
| 1011 REQ(ch, list_for); | |
| 1012 | |
|
39754
3300d7492f1a
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
Neal Norwitz <nnorwitz@gmail.com>
parents:
39445
diff
changeset
|
1013 for_ch = CHILD(ch, 1); |
|
3300d7492f1a
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
Neal Norwitz <nnorwitz@gmail.com>
parents:
39445
diff
changeset
|
1014 t = ast_for_exprlist(c, for_ch, Store); |
|
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
|
1015 if (!t) |
| 35742 | 1016 return NULL; |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1017 expression = ast_for_testlist(c, CHILD(ch, 3)); |
|
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
|
1018 if (!expression) |
| 35742 | 1019 return NULL; |
| 1020 | |
|
39754
3300d7492f1a
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
Neal Norwitz <nnorwitz@gmail.com>
parents:
39445
diff
changeset
|
1021 /* Check the # of children rather than the length of t, since |
|
3300d7492f1a
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
Neal Norwitz <nnorwitz@gmail.com>
parents:
39445
diff
changeset
|
1022 [x for x, in ... ] has 1 element in t, but still requires a Tuple. */ |
|
3300d7492f1a
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
Neal Norwitz <nnorwitz@gmail.com>
parents:
39445
diff
changeset
|
1023 if (NCH(for_ch) == 1) |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
1024 lc = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, 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
|
1025 c->c_arena); |
| 35742 | 1026 else |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1027 lc = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1028 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
|
1029 expression, NULL, 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
|
1030 if (!lc) |
| 35742 | 1031 return NULL; |
| 1032 | |
| 1033 if (NCH(ch) == 5) { | |
| 1034 int j, n_ifs; | |
| 1035 asdl_seq *ifs; | |
| 1036 | |
| 1037 ch = CHILD(ch, 4); | |
| 1038 n_ifs = count_list_ifs(ch); | |
|
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
|
1039 if (n_ifs == -1) |
| 35742 | 1040 return NULL; |
| 1041 | |
|
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
|
1042 ifs = asdl_seq_new(n_ifs, 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
|
1043 if (!ifs) |
| 35742 | 1044 return NULL; |
| 1045 | |
| 1046 for (j = 0; j < n_ifs; j++) { | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1047 REQ(ch, list_iter); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1048 ch = CHILD(ch, 0); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1049 REQ(ch, list_if); |
| 35742 | 1050 |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1051 asdl_seq_SET(ifs, j, ast_for_expr(c, CHILD(ch, 1))); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1052 if (NCH(ch) == 3) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1053 ch = CHILD(ch, 2); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1054 } |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1055 /* on exit, must guarantee that ch is a list_for */ |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1056 if (TYPE(ch) == list_iter) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1057 ch = CHILD(ch, 0); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1058 lc->ifs = ifs; |
| 35742 | 1059 } |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1060 asdl_seq_SET(listcomps, i, lc); |
| 35742 | 1061 } |
| 1062 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1063 return ListComp(elt, listcomps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1064 } |
| 1065 | |
| 1066 /* | |
| 1067 Count the number of 'for' loops in a generator expression. | |
| 1068 | |
| 1069 Helper for ast_for_genexp(). | |
| 1070 */ | |
| 1071 | |
| 1072 static int | |
| 1073 count_gen_fors(const node *n) | |
| 1074 { | |
| 1075 int n_fors = 0; | |
| 1076 node *ch = CHILD(n, 1); | |
| 1077 | |
| 1078 count_gen_for: | |
| 1079 n_fors++; | |
| 1080 REQ(ch, gen_for); | |
| 1081 if (NCH(ch) == 5) | |
| 1082 ch = CHILD(ch, 4); | |
| 1083 else | |
| 1084 return n_fors; | |
| 1085 count_gen_iter: | |
| 1086 REQ(ch, gen_iter); | |
| 1087 ch = CHILD(ch, 0); | |
| 1088 if (TYPE(ch) == gen_for) | |
| 1089 goto count_gen_for; | |
| 1090 else if (TYPE(ch) == gen_if) { | |
| 1091 if (NCH(ch) == 3) { | |
| 1092 ch = CHILD(ch, 2); | |
| 1093 goto count_gen_iter; | |
| 1094 } | |
| 1095 else | |
| 1096 return n_fors; | |
| 1097 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1098 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1099 /* Should never be reached */ |
|
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|
1100 PyErr_SetString(PyExc_SystemError, |
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1101 "logic error in count_gen_fors"); |
|
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Cleanup a bit and make things more consistent.
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|
1102 return -1; |
| 35742 | 1103 } |
| 1104 | |
| 1105 /* Count the number of 'if' statements in a generator expression. | |
| 1106 | |
| 1107 Helper for ast_for_genexp(). | |
| 1108 */ | |
| 1109 | |
| 1110 static int | |
| 1111 count_gen_ifs(const node *n) | |
| 1112 { | |
| 1113 int n_ifs = 0; | |
| 1114 | |
| 1115 while (1) { | |
| 1116 REQ(n, gen_iter); | |
| 1117 if (TYPE(CHILD(n, 0)) == gen_for) | |
| 1118 return n_ifs; | |
| 1119 n = CHILD(n, 0); | |
| 1120 REQ(n, gen_if); | |
| 1121 n_ifs++; | |
| 1122 if (NCH(n) == 2) | |
| 1123 return n_ifs; | |
| 1124 n = CHILD(n, 2); | |
| 1125 } | |
| 1126 } | |
| 1127 | |
|
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1128 /* TODO(jhylton): Combine with list comprehension code? */ |
| 35742 | 1129 static expr_ty |
| 1130 ast_for_genexp(struct compiling *c, const node *n) | |
| 1131 { | |
| 1132 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) | |
| 1133 argument: [test '='] test [gen_for] # Really [keyword '='] test */ | |
| 1134 expr_ty elt; | |
| 1135 asdl_seq *genexps; | |
| 1136 int i, n_fors; | |
| 1137 node *ch; | |
| 1138 | |
| 1139 assert(TYPE(n) == (testlist_gexp) || TYPE(n) == (argument)); | |
| 1140 assert(NCH(n) > 1); | |
| 1141 | |
| 1142 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1143 if (!elt) | |
| 1144 return NULL; | |
| 1145 | |
| 1146 n_fors = count_gen_fors(n); | |
| 1147 if (n_fors == -1) | |
| 1148 return NULL; | |
|
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|
1149 |
|
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|
1150 genexps = asdl_seq_new(n_fors, c->c_arena); |
|
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|
1151 if (!genexps) |
| 35742 | 1152 return NULL; |
|
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diff
changeset
|
1153 |
| 35742 | 1154 ch = CHILD(n, 1); |
| 1155 for (i = 0; i < n_fors; i++) { | |
| 1156 comprehension_ty ge; | |
| 1157 asdl_seq *t; | |
| 1158 expr_ty expression; | |
|
39754
3300d7492f1a
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
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parents:
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diff
changeset
|
1159 node *for_ch; |
| 35742 | 1160 |
| 1161 REQ(ch, gen_for); | |
| 1162 | |
|
39754
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Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
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parents:
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diff
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|
1163 for_ch = CHILD(ch, 1); |
|
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Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
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|
1164 t = ast_for_exprlist(c, for_ch, Store); |
|
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diff
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|
1165 if (!t) |
| 35742 | 1166 return NULL; |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
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|
1167 expression = ast_for_expr(c, CHILD(ch, 3)); |
|
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|
1168 if (!expression) |
| 35742 | 1169 return NULL; |
|
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|
1170 |
|
39754
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Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
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diff
changeset
|
1171 /* Check the # of children rather than the length of t, since |
|
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parents:
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|
1172 (x for x, in ...) has 1 element in t, but still requires a Tuple. */ |
|
3300d7492f1a
Bug #1520864 (again): unpacking singleton tuples in list comprehensions and
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diff
changeset
|
1173 if (NCH(for_ch) == 1) |
|
37604
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Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
1174 ge = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, |
|
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diff
changeset
|
1175 NULL, c->c_arena); |
| 35742 | 1176 else |
|
37453
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Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
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diff
changeset
|
1177 ge = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset, |
|
16a64e394602
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diff
changeset
|
1178 c->c_arena), |
|
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diff
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|
1179 expression, NULL, c->c_arena); |
|
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parents:
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diff
changeset
|
1180 |
|
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parents:
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diff
changeset
|
1181 if (!ge) |
| 35742 | 1182 return NULL; |
|
36065
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diff
changeset
|
1183 |
| 35742 | 1184 if (NCH(ch) == 5) { |
| 1185 int j, n_ifs; | |
| 1186 asdl_seq *ifs; | |
| 1187 | |
| 1188 ch = CHILD(ch, 4); | |
| 1189 n_ifs = count_gen_ifs(ch); | |
|
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parents:
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diff
changeset
|
1190 if (n_ifs == -1) |
| 35742 | 1191 return NULL; |
|
36065
ea083efdc96c
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parents:
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diff
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|
1192 |
|
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diff
changeset
|
1193 ifs = asdl_seq_new(n_ifs, 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
|
1194 if (!ifs) |
| 35742 | 1195 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
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diff
changeset
|
1196 |
| 35742 | 1197 for (j = 0; j < n_ifs; j++) { |
| 1198 REQ(ch, gen_iter); | |
| 1199 ch = CHILD(ch, 0); | |
| 1200 REQ(ch, gen_if); | |
| 1201 | |
|
35798
857f68fba275
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1202 expression = ast_for_expr(c, CHILD(ch, 1)); |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
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diff
changeset
|
1203 if (!expression) |
|
35798
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
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35771
diff
changeset
|
1204 return NULL; |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1205 asdl_seq_SET(ifs, j, expression); |
| 35742 | 1206 if (NCH(ch) == 3) |
| 1207 ch = CHILD(ch, 2); | |
| 1208 } | |
| 1209 /* on exit, must guarantee that ch is a gen_for */ | |
| 1210 if (TYPE(ch) == gen_iter) | |
| 1211 ch = CHILD(ch, 0); | |
| 1212 ge->ifs = ifs; | |
| 1213 } | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1214 asdl_seq_SET(genexps, i, ge); |
| 35742 | 1215 } |
| 1216 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1217 return GeneratorExp(elt, genexps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1218 } |
| 1219 | |
| 1220 static expr_ty | |
| 1221 ast_for_atom(struct compiling *c, const node *n) | |
| 1222 { | |
| 1223 /* atom: '(' [yield_expr|testlist_gexp] ')' | '[' [listmaker] ']' | |
| 1224 | '{' [dictmaker] '}' | '`' testlist '`' | NAME | NUMBER | STRING+ | |
| 1225 */ | |
| 1226 node *ch = CHILD(n, 0); | |
| 1227 | |
| 1228 switch (TYPE(ch)) { | |
| 1229 case NAME: | |
| 1230 /* All names start in Load context, but may later be | |
| 1231 changed. */ | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
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diff
changeset
|
1232 return Name(NEW_IDENTIFIER(ch), Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1233 case STRING: { |
| 1234 PyObject *str = parsestrplus(c, n); | |
| 1235 if (!str) | |
| 1236 return NULL; | |
|
36065
ea083efdc96c
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Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
1237 |
|
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parents:
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diff
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|
1238 PyArena_AddPyObject(c->c_arena, str); |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1239 return Str(str, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1240 } |
| 1241 case NUMBER: { | |
| 1242 PyObject *pynum = parsenumber(STR(ch)); | |
| 1243 if (!pynum) | |
| 1244 return NULL; | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1245 |
|
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
|
1246 PyArena_AddPyObject(c->c_arena, pynum); |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1247 return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1248 } |
| 1249 case LPAR: /* some parenthesized expressions */ | |
| 1250 ch = CHILD(n, 1); | |
| 1251 | |
| 1252 if (TYPE(ch) == RPAR) | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1253 return Tuple(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1254 |
| 1255 if (TYPE(ch) == yield_expr) | |
| 1256 return ast_for_expr(c, ch); | |
| 1257 | |
| 1258 if ((NCH(ch) > 1) && (TYPE(CHILD(ch, 1)) == gen_for)) | |
| 1259 return ast_for_genexp(c, ch); | |
| 1260 | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1261 return ast_for_testlist_gexp(c, ch); |
| 35742 | 1262 case LSQB: /* list (or list comprehension) */ |
| 1263 ch = CHILD(n, 1); | |
| 1264 | |
| 1265 if (TYPE(ch) == RSQB) | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1266 return List(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1267 |
| 1268 REQ(ch, listmaker); | |
| 1269 if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) { | |
| 1270 asdl_seq *elts = seq_for_testlist(c, ch); | |
| 1271 if (!elts) | |
| 1272 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
|
1273 |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1274 return List(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1275 } |
| 1276 else | |
| 1277 return ast_for_listcomp(c, ch); | |
| 1278 case LBRACE: { | |
| 1279 /* dictmaker: test ':' test (',' test ':' test)* [','] */ | |
| 1280 int i, size; | |
| 1281 asdl_seq *keys, *values; | |
| 1282 | |
| 1283 ch = CHILD(n, 1); | |
| 1284 size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */ | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
36001
diff
changeset
|
1285 keys = asdl_seq_new(size, c->c_arena); |
| 35742 | 1286 if (!keys) |
| 1287 return NULL; | |
| 1288 | |
|
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
|
1289 values = asdl_seq_new(size, c->c_arena); |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
36001
diff
changeset
|
1290 if (!values) |
| 35742 | 1291 return NULL; |
| 1292 | |
| 1293 for (i = 0; i < NCH(ch); i += 4) { | |
| 1294 expr_ty expression; | |
| 1295 | |
| 1296 expression = ast_for_expr(c, CHILD(ch, i)); | |
|
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
|
1297 if (!expression) |
| 35742 | 1298 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
|
1299 |
| 35742 | 1300 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
|
1301 |
| 35742 | 1302 expression = ast_for_expr(c, CHILD(ch, i + 2)); |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
1303 if (!expression) |
| 35742 | 1304 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
|
1305 |
| 35742 | 1306 asdl_seq_SET(values, i / 4, expression); |
| 1307 } | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1308 return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1309 } |
| 1310 case BACKQUOTE: { /* repr */ | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1311 expr_ty expression = ast_for_testlist(c, CHILD(n, 1)); |
| 35742 | 1312 if (!expression) |
| 1313 return NULL; | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1314 |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1315 return Repr(expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1316 } |
| 1317 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
1318 PyErr_Format(PyExc_SystemError, "unhandled atom %d", TYPE(ch)); |
| 35742 | 1319 return NULL; |
| 1320 } | |
| 1321 } | |
| 1322 | |
| 1323 static slice_ty | |
| 1324 ast_for_slice(struct compiling *c, const node *n) | |
| 1325 { | |
| 1326 node *ch; | |
| 1327 expr_ty lower = NULL, upper = NULL, step = NULL; | |
| 1328 | |
| 1329 REQ(n, subscript); | |
| 1330 | |
| 1331 /* | |
| 1332 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] | |
| 1333 sliceop: ':' [test] | |
| 1334 */ | |
| 1335 ch = CHILD(n, 0); | |
| 1336 if (TYPE(ch) == DOT) | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
36001
diff
changeset
|
1337 return Ellipsis(c->c_arena); |
| 35742 | 1338 |
| 1339 if (NCH(n) == 1 && TYPE(ch) == test) { | |
| 1340 /* 'step' variable hold no significance in terms of being used over | |
| 1341 other vars */ | |
| 1342 step = ast_for_expr(c, ch); | |
| 1343 if (!step) | |
| 1344 return NULL; | |
| 1345 | |
|
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
|
1346 return Index(step, c->c_arena); |
| 35742 | 1347 } |
| 1348 | |
| 1349 if (TYPE(ch) == test) { | |
| 1350 lower = ast_for_expr(c, ch); | |
| 1351 if (!lower) | |
| 1352 return NULL; | |
| 1353 } | |
| 1354 | |
| 1355 /* If there's an upper bound it's in the second or third position. */ | |
| 1356 if (TYPE(ch) == COLON) { | |
| 1357 if (NCH(n) > 1) { | |
| 1358 node *n2 = CHILD(n, 1); | |
| 1359 | |
| 1360 if (TYPE(n2) == test) { | |
| 1361 upper = ast_for_expr(c, n2); | |
| 1362 if (!upper) | |
| 1363 return NULL; | |
| 1364 } | |
| 1365 } | |
| 1366 } else if (NCH(n) > 2) { | |
| 1367 node *n2 = CHILD(n, 2); | |
| 1368 | |
| 1369 if (TYPE(n2) == test) { | |
| 1370 upper = ast_for_expr(c, n2); | |
| 1371 if (!upper) | |
| 1372 return NULL; | |
| 1373 } | |
| 1374 } | |
| 1375 | |
| 1376 ch = CHILD(n, NCH(n) - 1); | |
| 1377 if (TYPE(ch) == sliceop) { | |
|
37065
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1378 if (NCH(ch) == 1) { |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1379 /* No expression, so step is None */ |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1380 ch = CHILD(ch, 0); |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1381 step = Name(new_identifier("None", c->c_arena), Load, |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1382 LINENO(ch), ch->n_col_offset, c->c_arena); |
| 35742 | 1383 if (!step) |
| 1384 return NULL; | |
|
37065
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1385 } else { |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1386 ch = CHILD(ch, 1); |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1387 if (TYPE(ch) == test) { |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1388 step = ast_for_expr(c, ch); |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1389 if (!step) |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1390 return NULL; |
|
b01c80d88267
Fix bug 1441408 where a double colon didn't trigger extended slice semantics (applies patch 1452332)
Nick Coghlan <ncoghlan@gmail.com>
parents:
36877
diff
changeset
|
1391 } |
| 35742 | 1392 } |
| 1393 } | |
| 1394 | |
|
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
|
1395 return Slice(lower, upper, step, c->c_arena); |
| 35742 | 1396 } |
| 1397 | |
| 1398 static expr_ty | |
| 1399 ast_for_binop(struct compiling *c, const node *n) | |
| 1400 { | |
| 1401 /* Must account for a sequence of expressions. | |
| 1402 How should A op B op C by represented? | |
| 1403 BinOp(BinOp(A, op, B), op, C). | |
| 1404 */ | |
| 1405 | |
| 1406 int i, nops; | |
| 1407 expr_ty expr1, expr2, result; | |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1408 operator_ty newoperator; |
| 35742 | 1409 |
| 1410 expr1 = ast_for_expr(c, CHILD(n, 0)); | |
| 1411 if (!expr1) | |
| 1412 return NULL; | |
| 1413 | |
| 1414 expr2 = ast_for_expr(c, CHILD(n, 2)); | |
| 1415 if (!expr2) | |
| 1416 return NULL; | |
| 1417 | |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1418 newoperator = get_operator(CHILD(n, 1)); |
|
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1419 if (!newoperator) |
| 35742 | 1420 return NULL; |
| 1421 | |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1422 result = BinOp(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1423 c->c_arena); |
| 35742 | 1424 if (!result) |
| 1425 return NULL; | |
| 1426 | |
| 1427 nops = (NCH(n) - 1) / 2; | |
| 1428 for (i = 1; i < nops; i++) { | |
| 1429 expr_ty tmp_result, tmp; | |
| 1430 const node* next_oper = CHILD(n, i * 2 + 1); | |
| 1431 | |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1432 newoperator = get_operator(next_oper); |
|
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1433 if (!newoperator) |
| 35742 | 1434 return NULL; |
| 1435 | |
| 1436 tmp = ast_for_expr(c, CHILD(n, i * 2 + 2)); | |
| 1437 if (!tmp) | |
| 1438 return NULL; | |
| 1439 | |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1440 tmp_result = BinOp(result, newoperator, tmp, |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1441 LINENO(next_oper), next_oper->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1442 c->c_arena); |
| 35742 | 1443 if (!tmp) |
| 1444 return NULL; | |
| 1445 result = tmp_result; | |
| 1446 } | |
| 1447 return result; | |
| 1448 } | |
| 1449 | |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1450 static expr_ty |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1451 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
|
1452 { |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1453 /* trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1454 subscriptlist: subscript (',' subscript)* [','] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1455 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1456 */ |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1457 REQ(n, trailer); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1458 if (TYPE(CHILD(n, 0)) == LPAR) { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1459 if (NCH(n) == 2) |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1460 return Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1461 n->n_col_offset, c->c_arena); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1462 else |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1463 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
|
1464 } |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1465 else if (TYPE(CHILD(n, 0)) == DOT ) { |
|
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1466 return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load, |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1467 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
|
1468 } |
|
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1469 else { |
|
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1470 REQ(CHILD(n, 0), LSQB); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1471 REQ(CHILD(n, 2), RSQB); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1472 n = CHILD(n, 1); |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1473 if (NCH(n) == 1) { |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1474 slice_ty slc = ast_for_slice(c, CHILD(n, 0)); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1475 if (!slc) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1476 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
|
1477 return Subscript(left_expr, slc, Load, LINENO(n), n->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1478 c->c_arena); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1479 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1480 else { |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1481 /* The grammar is ambiguous here. The ambiguity is resolved |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1482 by treating the sequence as a tuple literal if there are |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1483 no slice features. |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1484 */ |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1485 int j; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1486 slice_ty slc; |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1487 expr_ty e; |
|
36780
376792bfb57e
Fix uninitialized value. (Why are we using bools instead of ints, like we do
Thomas Wouters <thomas@python.org>
parents:
36742
diff
changeset
|
1488 bool simple = true; |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1489 asdl_seq *slices, *elts; |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1490 slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1491 if (!slices) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1492 return NULL; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1493 for (j = 0; j < NCH(n); j += 2) { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1494 slc = ast_for_slice(c, CHILD(n, j)); |
|
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
|
1495 if (!slc) |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1496 return NULL; |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1497 if (slc->kind != Index_kind) |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1498 simple = false; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1499 asdl_seq_SET(slices, j / 2, slc); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1500 } |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1501 if (!simple) { |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1502 return Subscript(left_expr, ExtSlice(slices, c->c_arena), |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1503 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1504 } |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1505 /* extract Index values and put them in a Tuple */ |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1506 elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena); |
|
36877
e9a7a2784e17
SF #1444030: Fix several potential defects found by Coverity.
Hye-Shik Chang <hyeshik@gmail.com>
parents:
36786
diff
changeset
|
1507 if (!elts) |
|
e9a7a2784e17
SF #1444030: Fix several potential defects found by Coverity.
Hye-Shik Chang <hyeshik@gmail.com>
parents:
36786
diff
changeset
|
1508 return NULL; |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1509 for (j = 0; j < asdl_seq_LEN(slices); ++j) { |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1510 slc = (slice_ty)asdl_seq_GET(slices, j); |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1511 assert(slc->kind == Index_kind && slc->v.Index.value); |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1512 asdl_seq_SET(elts, j, slc->v.Index.value); |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1513 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1514 e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1515 if (!e) |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1516 return NULL; |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1517 return Subscript(left_expr, Index(e, c->c_arena), |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1518 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1519 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1520 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1521 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1522 |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1523 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
|
1524 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
|
1525 { |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1526 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
|
1527 expr_ty expression; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1528 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1529 /* If the unary - operator is applied to a constant, don't generate |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1530 a UNARY_NEGATIVE opcode. Just store the approriate value as a |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1531 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
|
1532 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
|
1533 (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
|
1534 PyLongObject. |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1535 */ |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1536 if (TYPE(CHILD(n, 0)) == MINUS |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1537 && NCH(n) == 2 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1538 && TYPE((pfactor = CHILD(n, 1))) == factor |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1539 && NCH(pfactor) == 1 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1540 && TYPE((ppower = CHILD(pfactor, 0))) == power |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1541 && NCH(ppower) == 1 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1542 && TYPE((patom = CHILD(ppower, 0))) == atom |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1543 && TYPE((pnum = CHILD(patom, 0))) == NUMBER) { |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1544 char *s = PyObject_MALLOC(strlen(STR(pnum)) + 2); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1545 if (s == NULL) |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1546 return NULL; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1547 s[0] = '-'; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1548 strcpy(s + 1, STR(pnum)); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1549 PyObject_FREE(STR(pnum)); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1550 STR(pnum) = s; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1551 return ast_for_atom(c, patom); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1552 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1553 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1554 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
|
1555 if (!expression) |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1556 return NULL; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1557 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1558 switch (TYPE(CHILD(n, 0))) { |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1559 case PLUS: |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1560 return UnaryOp(UAdd, expression, LINENO(n), n->n_col_offset, |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1561 c->c_arena); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1562 case MINUS: |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1563 return UnaryOp(USub, expression, LINENO(n), n->n_col_offset, |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1564 c->c_arena); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1565 case TILDE: |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1566 return UnaryOp(Invert, expression, LINENO(n), |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1567 n->n_col_offset, c->c_arena); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1568 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1569 PyErr_Format(PyExc_SystemError, "unhandled factor: %d", |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1570 TYPE(CHILD(n, 0))); |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1571 return NULL; |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1572 } |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1573 |
|
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1574 static expr_ty |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1575 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
|
1576 { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1577 /* power: atom trailer* ('**' factor)* |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1578 */ |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1579 int i; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1580 expr_ty e, tmp; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1581 REQ(n, power); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1582 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
|
1583 if (!e) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1584 return NULL; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1585 if (NCH(n) == 1) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1586 return e; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1587 for (i = 1; i < NCH(n); i++) { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1588 node *ch = CHILD(n, i); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1589 if (TYPE(ch) != trailer) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1590 break; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1591 tmp = ast_for_trailer(c, ch, e); |
|
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
|
1592 if (!tmp) |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1593 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1594 tmp->lineno = e->lineno; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1595 tmp->col_offset = e->col_offset; |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1596 e = tmp; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1597 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1598 if (TYPE(CHILD(n, NCH(n) - 1)) == factor) { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1599 expr_ty f = ast_for_expr(c, CHILD(n, NCH(n) - 1)); |
|
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
|
1600 if (!f) |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1601 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1602 tmp = BinOp(e, Pow, f, LINENO(n), n->n_col_offset, 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
|
1603 if (!tmp) |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1604 return NULL; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1605 e = tmp; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1606 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1607 return e; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1608 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1609 |
| 35742 | 1610 /* Do not name a variable 'expr'! Will cause a compile error. |
| 1611 */ | |
| 1612 | |
| 1613 static expr_ty | |
| 1614 ast_for_expr(struct compiling *c, const node *n) | |
| 1615 { | |
| 1616 /* 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
|
1617 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
|
1618 or_test: and_test ('or' and_test)* |
| 35742 | 1619 and_test: not_test ('and' not_test)* |
| 1620 not_test: 'not' not_test | comparison | |
| 1621 comparison: expr (comp_op expr)* | |
| 1622 expr: xor_expr ('|' xor_expr)* | |
| 1623 xor_expr: and_expr ('^' and_expr)* | |
| 1624 and_expr: shift_expr ('&' shift_expr)* | |
| 1625 shift_expr: arith_expr (('<<'|'>>') arith_expr)* | |
| 1626 arith_expr: term (('+'|'-') term)* | |
| 1627 term: factor (('*'|'/'|'%'|'//') factor)* | |
| 1628 factor: ('+'|'-'|'~') factor | power | |
| 1629 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
|
1630 |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1631 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
|
1632 to explicitly allow: |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1633 [ 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
|
1634 (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
|
1635 |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1636 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
|
1637 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
|
1638 |
| 35742 | 1639 */ |
| 1640 | |
| 1641 asdl_seq *seq; | |
| 1642 int i; | |
| 1643 | |
| 1644 loop: | |
| 1645 switch (TYPE(n)) { | |
| 1646 case test: | |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1647 case old_test: |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1648 if (TYPE(CHILD(n, 0)) == lambdef || |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1649 TYPE(CHILD(n, 0)) == old_lambdef) |
| 35742 | 1650 return ast_for_lambdef(c, CHILD(n, 0)); |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1651 else if (NCH(n) > 1) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1652 return ast_for_ifexpr(c, n); |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1653 /* Fallthrough */ |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1654 case or_test: |
| 35742 | 1655 case and_test: |
| 1656 if (NCH(n) == 1) { | |
| 1657 n = CHILD(n, 0); | |
| 1658 goto loop; | |
| 1659 } | |
|
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
|
1660 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 1661 if (!seq) |
| 1662 return NULL; | |
| 1663 for (i = 0; i < NCH(n); i += 2) { | |
| 1664 expr_ty e = ast_for_expr(c, CHILD(n, i)); | |
| 1665 if (!e) | |
| 1666 return NULL; | |
| 1667 asdl_seq_SET(seq, i / 2, e); | |
| 1668 } | |
| 1669 if (!strcmp(STR(CHILD(n, 1)), "and")) | |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1670 return BoolOp(And, seq, LINENO(n), n->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1671 c->c_arena); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1672 assert(!strcmp(STR(CHILD(n, 1)), "or")); |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1673 return BoolOp(Or, seq, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1674 case not_test: |
| 1675 if (NCH(n) == 1) { | |
| 1676 n = CHILD(n, 0); | |
| 1677 goto loop; | |
| 1678 } | |
| 1679 else { | |
| 1680 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); | |
| 1681 if (!expression) | |
| 1682 return NULL; | |
| 1683 | |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1684 return UnaryOp(Not, expression, LINENO(n), n->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1685 c->c_arena); |
| 35742 | 1686 } |
| 1687 case comparison: | |
| 1688 if (NCH(n) == 1) { | |
| 1689 n = CHILD(n, 0); | |
| 1690 goto loop; | |
| 1691 } | |
| 1692 else { | |
| 1693 expr_ty expression; | |
|
37685
5e72b0c74100
Introduce asdl_int_seq, to hold cmpop_ty.
Martin v. Löwis <martin@v.loewis.de>
parents:
37604
diff
changeset
|
1694 asdl_int_seq *ops; |
|
5e72b0c74100
Introduce asdl_int_seq, to hold cmpop_ty.
Martin v. Löwis <martin@v.loewis.de>
parents:
37604
diff
changeset
|
1695 asdl_seq *cmps; |
|
5e72b0c74100
Introduce asdl_int_seq, to hold cmpop_ty.
Martin v. Löwis <martin@v.loewis.de>
parents:
37604
diff
changeset
|
1696 ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 1697 if (!ops) |
| 1698 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
|
1699 cmps = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 1700 if (!cmps) { |
| 1701 return NULL; | |
| 1702 } | |
| 1703 for (i = 1; i < NCH(n); i += 2) { | |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1704 cmpop_ty newoperator; |
| 35742 | 1705 |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1706 newoperator = ast_for_comp_op(CHILD(n, i)); |
|
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
1707 if (!newoperator) { |
| 35742 | 1708 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
|
1709 } |
| 35742 | 1710 |
| 1711 expression = ast_for_expr(c, CHILD(n, i + 1)); | |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
1712 if (!expression) { |
| 35742 | 1713 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
|
1714 } |
| 35742 | 1715 |
|
37685
5e72b0c74100
Introduce asdl_int_seq, to hold cmpop_ty.
Martin v. Löwis <martin@v.loewis.de>
parents:
37604
diff
changeset
|
1716 asdl_seq_SET(ops, i / 2, newoperator); |
| 35742 | 1717 asdl_seq_SET(cmps, i / 2, expression); |
| 1718 } | |
| 1719 expression = ast_for_expr(c, CHILD(n, 0)); | |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
1720 if (!expression) { |
| 35742 | 1721 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
|
1722 } |
| 35742 | 1723 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1724 return Compare(expression, ops, cmps, LINENO(n), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
1725 n->n_col_offset, c->c_arena); |
| 35742 | 1726 } |
| 1727 break; | |
| 1728 | |
| 1729 /* The next five cases all handle BinOps. The main body of code | |
| 1730 is the same in each case, but the switch turned inside out to | |
| 1731 reuse the code for each type of operator. | |
| 1732 */ | |
| 1733 case expr: | |
| 1734 case xor_expr: | |
| 1735 case and_expr: | |
| 1736 case shift_expr: | |
| 1737 case arith_expr: | |
| 1738 case term: | |
| 1739 if (NCH(n) == 1) { | |
| 1740 n = CHILD(n, 0); | |
| 1741 goto loop; | |
| 1742 } | |
| 1743 return ast_for_binop(c, n); | |
| 1744 case yield_expr: { | |
| 1745 expr_ty exp = NULL; | |
| 1746 if (NCH(n) == 2) { | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1747 exp = ast_for_testlist(c, CHILD(n, 1)); |
| 35742 | 1748 if (!exp) |
| 1749 return NULL; | |
| 1750 } | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1751 return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1752 } |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1753 case factor: |
| 35742 | 1754 if (NCH(n) == 1) { |
| 1755 n = CHILD(n, 0); | |
| 1756 goto loop; | |
| 1757 } | |
|
39038
64ccd745ea92
Fix SF bug 1441486: bad unary minus folding in compiler.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
39037
diff
changeset
|
1758 return ast_for_factor(c, n); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1759 case power: |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1760 return ast_for_power(c, n); |
| 35742 | 1761 default: |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
1762 PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n)); |
| 35742 | 1763 return NULL; |
| 1764 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1765 /* should never get here unless if error is set */ |
| 35742 | 1766 return NULL; |
| 1767 } | |
| 1768 | |
| 1769 static expr_ty | |
| 1770 ast_for_call(struct compiling *c, const node *n, expr_ty func) | |
| 1771 { | |
| 1772 /* | |
| 1773 arglist: (argument ',')* (argument [',']| '*' test [',' '**' test] | |
| 1774 | '**' test) | |
| 1775 argument: [test '='] test [gen_for] # Really [keyword '='] test | |
| 1776 */ | |
| 1777 | |
| 1778 int i, nargs, nkeywords, ngens; | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1779 asdl_seq *args; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1780 asdl_seq *keywords; |
| 35742 | 1781 expr_ty vararg = NULL, kwarg = NULL; |
| 1782 | |
| 1783 REQ(n, arglist); | |
| 1784 | |
| 1785 nargs = 0; | |
| 1786 nkeywords = 0; | |
| 1787 ngens = 0; | |
| 1788 for (i = 0; i < NCH(n); i++) { | |
| 1789 node *ch = CHILD(n, i); | |
| 1790 if (TYPE(ch) == argument) { | |
| 1791 if (NCH(ch) == 1) | |
| 1792 nargs++; | |
| 1793 else if (TYPE(CHILD(ch, 1)) == gen_for) | |
| 1794 ngens++; | |
| 1795 else | |
| 1796 nkeywords++; | |
| 1797 } | |
| 1798 } | |
| 1799 if (ngens > 1 || (ngens && (nargs || nkeywords))) { | |
|
36418
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
1800 ast_error(n, "Generator expression must be parenthesized " |
| 35742 | 1801 "if not sole argument"); |
| 1802 return NULL; | |
| 1803 } | |
| 1804 | |
| 1805 if (nargs + nkeywords + ngens > 255) { | |
| 1806 ast_error(n, "more than 255 arguments"); | |
| 1807 return NULL; | |
| 1808 } | |
| 1809 | |
|
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
|
1810 args = asdl_seq_new(nargs + ngens, c->c_arena); |
| 35742 | 1811 if (!args) |
|
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
|
1812 return NULL; |
|
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
|
1813 keywords = asdl_seq_new(nkeywords, c->c_arena); |
| 35742 | 1814 if (!keywords) |
|
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
|
1815 return NULL; |
| 35742 | 1816 nargs = 0; |
| 1817 nkeywords = 0; | |
| 1818 for (i = 0; i < NCH(n); i++) { | |
| 1819 node *ch = CHILD(n, i); | |
| 1820 if (TYPE(ch) == argument) { | |
| 1821 expr_ty e; | |
| 1822 if (NCH(ch) == 1) { | |
|
38218
26fb563881c9
Fix #1474677, non-keyword argument following keyword.
Neal Norwitz <nnorwitz@gmail.com>
parents:
38181
diff
changeset
|
1823 if (nkeywords) { |
|
26fb563881c9
Fix #1474677, non-keyword argument following keyword.
Neal Norwitz <nnorwitz@gmail.com>
parents:
38181
diff
changeset
|
1824 ast_error(CHILD(ch, 0), |
|
26fb563881c9
Fix #1474677, non-keyword argument following keyword.
Neal Norwitz <nnorwitz@gmail.com>
parents:
38181
diff
changeset
|
1825 "non-keyword arg after keyword arg"); |
|
26fb563881c9
Fix #1474677, non-keyword argument following keyword.
Neal Norwitz <nnorwitz@gmail.com>
parents:
38181
diff
changeset
|
1826 return NULL; |
|
26fb563881c9
Fix #1474677, non-keyword argument following keyword.
Neal Norwitz <nnorwitz@gmail.com>
parents:
38181
diff
changeset
|
1827 } |
| 35742 | 1828 e = ast_for_expr(c, CHILD(ch, 0)); |
| 1829 if (!e) | |
|
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
|
1830 return NULL; |
| 35742 | 1831 asdl_seq_SET(args, nargs++, e); |
| 1832 } | |
| 1833 else if (TYPE(CHILD(ch, 1)) == gen_for) { | |
| 1834 e = ast_for_genexp(c, ch); | |
| 1835 if (!e) | |
|
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
|
1836 return NULL; |
| 35742 | 1837 asdl_seq_SET(args, nargs++, e); |
| 1838 } | |
| 1839 else { | |
| 1840 keyword_ty kw; | |
| 1841 identifier key; | |
| 1842 | |
| 1843 /* CHILD(ch, 0) is test, but must be an identifier? */ | |
| 1844 e = ast_for_expr(c, CHILD(ch, 0)); | |
| 1845 if (!e) | |
|
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
|
1846 return NULL; |
| 35742 | 1847 /* f(lambda x: x[0] = 3) ends up getting parsed with |
| 1848 * LHS test = lambda x: x[0], and RHS test = 3. | |
| 1849 * SF bug 132313 points out that complaining about a keyword | |
| 1850 * then is very confusing. | |
| 1851 */ | |
| 1852 if (e->kind == Lambda_kind) { | |
| 1853 ast_error(CHILD(ch, 0), "lambda cannot contain assignment"); | |
|
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
|
1854 return NULL; |
| 35742 | 1855 } else if (e->kind != Name_kind) { |
| 1856 ast_error(CHILD(ch, 0), "keyword can't be an 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
|
1857 return NULL; |
| 35742 | 1858 } |
| 1859 key = e->v.Name.id; | |
| 1860 e = ast_for_expr(c, CHILD(ch, 2)); | |
| 1861 if (!e) | |
|
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
|
1862 return NULL; |
|
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
|
1863 kw = keyword(key, e, c->c_arena); |
| 35742 | 1864 if (!kw) |
|
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
|
1865 return NULL; |
| 35742 | 1866 asdl_seq_SET(keywords, nkeywords++, kw); |
| 1867 } | |
| 1868 } | |
| 1869 else if (TYPE(ch) == STAR) { | |
| 1870 vararg = ast_for_expr(c, CHILD(n, i+1)); | |
| 1871 i++; | |
| 1872 } | |
| 1873 else if (TYPE(ch) == DOUBLESTAR) { | |
| 1874 kwarg = ast_for_expr(c, CHILD(n, i+1)); | |
| 1875 i++; | |
| 1876 } | |
| 1877 } | |
| 1878 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1879 return Call(func, args, keywords, vararg, kwarg, func->lineno, func->col_offset, c->c_arena); |
| 35742 | 1880 } |
| 1881 | |
| 1882 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
|
1883 ast_for_testlist(struct compiling *c, const node* n) |
| 35742 | 1884 { |
|
35798
857f68fba275
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1885 /* testlist_gexp: test (',' test)* [','] */ |
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1886 /* testlist: test (',' test)* [','] */ |
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1887 /* testlist_safe: test (',' test)+ [','] */ |
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1888 /* testlist1: test (',' test)* */ |
| 35742 | 1889 assert(NCH(n) > 0); |
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1890 if (TYPE(n) == testlist_gexp) { |
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1891 if (NCH(n) > 1) |
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1892 assert(TYPE(CHILD(n, 1)) != gen_for); |
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1893 } |
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1894 else { |
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1895 assert(TYPE(n) == testlist || |
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1896 TYPE(n) == testlist_safe || |
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1897 TYPE(n) == testlist1); |
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1898 } |
| 35742 | 1899 if (NCH(n) == 1) |
| 1900 return ast_for_expr(c, CHILD(n, 0)); | |
| 1901 else { | |
| 1902 asdl_seq *tmp = seq_for_testlist(c, n); | |
| 1903 if (!tmp) | |
| 1904 return NULL; | |
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1905 return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1906 } |
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1907 } |
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1908 |
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1909 static expr_ty |
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1910 ast_for_testlist_gexp(struct compiling *c, const node* n) |
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1911 { |
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1912 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) */ |
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1913 /* argument: test [ gen_for ] */ |
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1914 assert(TYPE(n) == testlist_gexp || TYPE(n) == argument); |
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1915 if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == gen_for) |
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1916 return ast_for_genexp(c, n); |
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1917 return ast_for_testlist(c, n); |
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1918 } |
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1919 |
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1920 /* like ast_for_testlist() but returns a sequence */ |
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1921 static asdl_seq* |
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1922 ast_for_class_bases(struct compiling *c, const node* n) |
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1923 { |
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1924 /* testlist: test (',' test)* [','] */ |
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1925 assert(NCH(n) > 0); |
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1926 REQ(n, testlist); |
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1927 if (NCH(n) == 1) { |
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1928 expr_ty base; |
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1929 asdl_seq *bases = asdl_seq_new(1, c->c_arena); |
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1930 if (!bases) |
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1931 return NULL; |
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1932 base = ast_for_expr(c, CHILD(n, 0)); |
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1933 if (!base) |
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1934 return NULL; |
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1935 asdl_seq_SET(bases, 0, base); |
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1936 return bases; |
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1937 } |
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1938 |
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1939 return seq_for_testlist(c, n); |
| 35742 | 1940 } |
| 1941 | |
| 1942 static stmt_ty | |
| 1943 ast_for_expr_stmt(struct compiling *c, const node *n) | |
| 1944 { | |
| 1945 REQ(n, expr_stmt); | |
| 1946 /* expr_stmt: testlist (augassign (yield_expr|testlist) | |
| 1947 | ('=' (yield_expr|testlist))*) | |
| 1948 testlist: test (',' test)* [','] | |
| 1949 augassign: '+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^=' | |
| 1950 | '<<=' | '>>=' | '**=' | '//=' | |
| 1951 test: ... here starts the operator precendence dance | |
| 1952 */ | |
| 1953 | |
| 1954 if (NCH(n) == 1) { | |
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1955 expr_ty e = ast_for_testlist(c, CHILD(n, 0)); |
| 35742 | 1956 if (!e) |
| 1957 return NULL; | |
| 1958 | |
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1959 return Expr(e, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1960 } |
| 1961 else if (TYPE(CHILD(n, 1)) == augassign) { | |
| 1962 expr_ty expr1, expr2; | |
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1963 operator_ty newoperator; |
| 35742 | 1964 node *ch = CHILD(n, 0); |
| 1965 | |
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1966 expr1 = ast_for_testlist(c, ch); |
| 35742 | 1967 if (!expr1) |
| 1968 return NULL; | |
|
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1969 /* TODO(nas): Remove duplicated error checks (set_context does it) */ |
|
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1970 switch (expr1->kind) { |
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1971 case GeneratorExp_kind: |
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1972 ast_error(ch, "augmented assignment to generator " |
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1973 "expression not possible"); |
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1974 return NULL; |
|
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1975 case Yield_kind: |
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1976 ast_error(ch, "augmented assignment to yield " |
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1977 "expression not possible"); |
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1978 return NULL; |
|
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1979 case Name_kind: { |
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1980 const char *var_name = PyString_AS_STRING(expr1->v.Name.id); |
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1981 if (var_name[0] == 'N' && !strcmp(var_name, "None")) { |
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1982 ast_error(ch, "assignment to None"); |
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1983 return NULL; |
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1984 } |
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1985 break; |
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1986 } |
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1987 case Attribute_kind: |
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1988 case Subscript_kind: |
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1989 break; |
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1990 default: |
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1991 ast_error(ch, "illegal expression for augmented " |
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1992 "assignment"); |
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1993 return NULL; |
| 35742 | 1994 } |
|
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|
1995 set_context(expr1, Store, ch); |
| 35742 | 1996 |
| 1997 ch = CHILD(n, 2); | |
| 1998 if (TYPE(ch) == testlist) | |
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1999 expr2 = ast_for_testlist(c, ch); |
| 35742 | 2000 else |
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2001 expr2 = ast_for_expr(c, ch); |
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2002 if (!expr2) |
| 35742 | 2003 return NULL; |
| 2004 | |
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2005 newoperator = ast_for_augassign(CHILD(n, 1)); |
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2006 if (!newoperator) |
| 35742 | 2007 return NULL; |
| 2008 | |
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2009 return AugAssign(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2010 } |
| 2011 else { | |
| 2012 int i; | |
| 2013 asdl_seq *targets; | |
| 2014 node *value; | |
| 2015 expr_ty expression; | |
| 2016 | |
| 2017 /* a normal assignment */ | |
| 2018 REQ(CHILD(n, 1), EQUAL); | |
|
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|
2019 targets = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 2020 if (!targets) |
| 2021 return NULL; | |
| 2022 for (i = 0; i < NCH(n) - 2; i += 2) { | |
|
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parents:
35748
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|
2023 expr_ty e; |
| 35742 | 2024 node *ch = CHILD(n, i); |
| 2025 if (TYPE(ch) == yield_expr) { | |
| 2026 ast_error(ch, "assignment to yield expression not possible"); | |
|
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2027 return NULL; |
| 35742 | 2028 } |
|
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2029 e = ast_for_testlist(c, ch); |
| 35742 | 2030 |
| 2031 /* set context to assign */ | |
| 2032 if (!e) | |
|
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|
2033 return NULL; |
| 35742 | 2034 |
|
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2035 if (!set_context(e, Store, CHILD(n, i))) |
|
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|
2036 return NULL; |
| 35742 | 2037 |
| 2038 asdl_seq_SET(targets, i / 2, e); | |
| 2039 } | |
| 2040 value = CHILD(n, NCH(n) - 1); | |
| 2041 if (TYPE(value) == testlist) | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2042 expression = ast_for_testlist(c, value); |
| 35742 | 2043 else |
| 2044 expression = ast_for_expr(c, value); | |
| 2045 if (!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
|
2046 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2047 return Assign(targets, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2048 } |
| 2049 } | |
| 2050 | |
| 2051 static stmt_ty | |
| 2052 ast_for_print_stmt(struct compiling *c, const node *n) | |
| 2053 { | |
| 2054 /* print_stmt: 'print' ( [ test (',' test)* [','] ] | |
| 2055 | '>>' test [ (',' test)+ [','] ] ) | |
| 2056 */ | |
| 2057 expr_ty dest = NULL, expression; | |
| 2058 asdl_seq *seq; | |
| 2059 bool nl; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2060 int i, j, start = 1; |
| 35742 | 2061 |
| 2062 REQ(n, print_stmt); | |
| 2063 if (NCH(n) >= 2 && TYPE(CHILD(n, 1)) == RIGHTSHIFT) { | |
| 2064 dest = ast_for_expr(c, CHILD(n, 2)); | |
| 2065 if (!dest) | |
| 2066 return NULL; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2067 start = 4; |
| 35742 | 2068 } |
|
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
|
2069 seq = asdl_seq_new((NCH(n) + 1 - start) / 2, c->c_arena); |
| 35742 | 2070 if (!seq) |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2071 return NULL; |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2072 for (i = start, j = 0; i < NCH(n); i += 2, ++j) { |
| 35742 | 2073 expression = ast_for_expr(c, CHILD(n, i)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2074 if (!expression) |
| 35742 | 2075 return NULL; |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2076 asdl_seq_SET(seq, j, expression); |
| 35742 | 2077 } |
| 2078 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
|
2079 return Print(dest, seq, nl, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2080 } |
| 2081 | |
| 2082 static asdl_seq * | |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
2083 ast_for_exprlist(struct compiling *c, const node *n, expr_context_ty context) |
| 35742 | 2084 { |
| 2085 asdl_seq *seq; | |
| 2086 int i; | |
| 2087 expr_ty e; | |
| 2088 | |
| 2089 REQ(n, exprlist); | |
| 2090 | |
|
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
|
2091 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 2092 if (!seq) |
| 2093 return NULL; | |
| 2094 for (i = 0; i < NCH(n); i += 2) { | |
| 2095 e = ast_for_expr(c, CHILD(n, i)); | |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
2096 if (!e) |
|
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
|
2097 return NULL; |
|
35875
086caccfff0e
Fix another memory leak or two (one real, one potential)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35874
diff
changeset
|
2098 asdl_seq_SET(seq, i / 2, e); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2099 if (context && !set_context(e, context, CHILD(n, i))) |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2100 return NULL; |
| 35742 | 2101 } |
| 2102 return seq; | |
| 2103 } | |
| 2104 | |
| 2105 static stmt_ty | |
| 2106 ast_for_del_stmt(struct compiling *c, const node *n) | |
| 2107 { | |
| 2108 asdl_seq *expr_list; | |
| 2109 | |
| 2110 /* del_stmt: 'del' exprlist */ | |
| 2111 REQ(n, del_stmt); | |
| 2112 | |
| 2113 expr_list = ast_for_exprlist(c, CHILD(n, 1), Del); | |
| 2114 if (!expr_list) | |
| 2115 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2116 return Delete(expr_list, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2117 } |
| 2118 | |
| 2119 static stmt_ty | |
| 2120 ast_for_flow_stmt(struct compiling *c, const node *n) | |
| 2121 { | |
| 2122 /* | |
| 2123 flow_stmt: break_stmt | continue_stmt | return_stmt | raise_stmt | |
| 2124 | yield_stmt | |
| 2125 break_stmt: 'break' | |
| 2126 continue_stmt: 'continue' | |
| 2127 return_stmt: 'return' [testlist] | |
| 2128 yield_stmt: yield_expr | |
| 2129 yield_expr: 'yield' testlist | |
| 2130 raise_stmt: 'raise' [test [',' test [',' test]]] | |
| 2131 */ | |
| 2132 node *ch; | |
| 2133 | |
| 2134 REQ(n, flow_stmt); | |
| 2135 ch = CHILD(n, 0); | |
| 2136 switch (TYPE(ch)) { | |
| 2137 case break_stmt: | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2138 return Break(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2139 case continue_stmt: |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2140 return Continue(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2141 case yield_stmt: { /* will reduce to yield_expr */ |
| 2142 expr_ty exp = ast_for_expr(c, CHILD(ch, 0)); | |
| 2143 if (!exp) | |
| 2144 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2145 return Expr(exp, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2146 } |
| 2147 case return_stmt: | |
| 2148 if (NCH(ch) == 1) | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2149 return Return(NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2150 else { |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2151 expr_ty expression = ast_for_testlist(c, CHILD(ch, 1)); |
| 35742 | 2152 if (!expression) |
| 2153 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2154 return Return(expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2155 } |
| 2156 case raise_stmt: | |
| 2157 if (NCH(ch) == 1) | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2158 return Raise(NULL, NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2159 else if (NCH(ch) == 2) { |
| 2160 expr_ty expression = ast_for_expr(c, CHILD(ch, 1)); | |
| 2161 if (!expression) | |
| 2162 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2163 return Raise(expression, NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2164 } |
| 2165 else if (NCH(ch) == 4) { | |
| 2166 expr_ty expr1, expr2; | |
| 2167 | |
| 2168 expr1 = ast_for_expr(c, CHILD(ch, 1)); | |
| 2169 if (!expr1) | |
| 2170 return NULL; | |
| 2171 expr2 = ast_for_expr(c, CHILD(ch, 3)); | |
| 2172 if (!expr2) | |
| 2173 return NULL; | |
| 2174 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2175 return Raise(expr1, expr2, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2176 } |
| 2177 else if (NCH(ch) == 6) { | |
| 2178 expr_ty expr1, expr2, expr3; | |
| 2179 | |
| 2180 expr1 = ast_for_expr(c, CHILD(ch, 1)); | |
| 2181 if (!expr1) | |
| 2182 return NULL; | |
| 2183 expr2 = ast_for_expr(c, CHILD(ch, 3)); | |
| 2184 if (!expr2) | |
| 2185 return NULL; | |
| 2186 expr3 = ast_for_expr(c, CHILD(ch, 5)); | |
| 2187 if (!expr3) | |
| 2188 return NULL; | |
| 2189 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2190 return Raise(expr1, expr2, expr3, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2191 } |
| 2192 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2193 PyErr_Format(PyExc_SystemError, |
| 35742 | 2194 "unexpected flow_stmt: %d", TYPE(ch)); |
| 2195 return NULL; | |
| 2196 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2197 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2198 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
|
2199 return NULL; |
| 35742 | 2200 } |
| 2201 | |
| 2202 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
|
2203 alias_for_import_name(struct compiling *c, const node *n) |
| 35742 | 2204 { |
| 2205 /* | |
|
36742
658f8ff2a442
Make 'as' an actual keyword when with's future statement is used. Not
Thomas Wouters <thomas@python.org>
parents:
36718
diff
changeset
|
2206 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
|
2207 dotted_as_name: dotted_name ['as' NAME] |
| 35742 | 2208 dotted_name: NAME ('.' NAME)* |
| 2209 */ | |
|
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
|
2210 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
|
2211 |
| 35742 | 2212 loop: |
| 2213 switch (TYPE(n)) { | |
| 2214 case import_as_name: | |
|
39034
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2215 str = NULL; |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2216 if (NCH(n) == 3) { |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2217 if (strcmp(STR(CHILD(n, 1)), "as") != 0) { |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2218 ast_error(n, "must use 'as' in import"); |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2219 return NULL; |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2220 } |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2221 str = NEW_IDENTIFIER(CHILD(n, 2)); |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2222 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2223 return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena); |
| 35742 | 2224 case dotted_as_name: |
| 2225 if (NCH(n) == 1) { | |
| 2226 n = CHILD(n, 0); | |
| 2227 goto loop; | |
| 2228 } | |
| 2229 else { | |
|
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
|
2230 alias_ty a = alias_for_import_name(c, CHILD(n, 0)); |
|
39445
e11caad7e029
Klocwork made another run and found a bunch more problems.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39317
diff
changeset
|
2231 if (!a) |
|
e11caad7e029
Klocwork made another run and found a bunch more problems.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39317
diff
changeset
|
2232 return NULL; |
|
39034
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2233 if (strcmp(STR(CHILD(n, 1)), "as") != 0) { |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2234 ast_error(n, "must use 'as' in import"); |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2235 return NULL; |
|
066aa42ce5f2
Fix SF bug #1519018: 'as' is now validated properly in import statements
Neal Norwitz <nnorwitz@gmail.com>
parents:
38406
diff
changeset
|
2236 } |
| 35742 | 2237 assert(!a->asname); |
| 2238 a->asname = NEW_IDENTIFIER(CHILD(n, 2)); | |
| 2239 return a; | |
| 2240 } | |
| 2241 break; | |
| 2242 case dotted_name: | |
| 2243 if (NCH(n) == 1) | |
|
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
|
2244 return alias(NEW_IDENTIFIER(CHILD(n, 0)), NULL, c->c_arena); |
| 35742 | 2245 else { |
| 2246 /* Create a string of the form "a.b.c" */ | |
|
36242
0f5189607264
Repair bizarre indentation created by VC 7.1.
Tim Peters <tim.peters@gmail.com>
parents:
36241
diff
changeset
|
2247 int i; |
|
36241
557e9b6ee7e1
alias_for_import_name(): Dueling compiler warnings ;-)
Tim Peters <tim.peters@gmail.com>
parents:
36231
diff
changeset
|
2248 size_t len; |
| 35742 | 2249 char *s; |
| 2250 | |
| 2251 len = 0; | |
| 2252 for (i = 0; i < NCH(n); i += 2) | |
| 2253 /* length of string plus one for the dot */ | |
| 2254 len += strlen(STR(CHILD(n, i))) + 1; | |
| 2255 len--; /* the last name doesn't have a dot */ | |
| 2256 str = PyString_FromStringAndSize(NULL, len); | |
| 2257 if (!str) | |
| 2258 return NULL; | |
| 2259 s = PyString_AS_STRING(str); | |
| 2260 if (!s) | |
| 2261 return NULL; | |
| 2262 for (i = 0; i < NCH(n); i += 2) { | |
| 2263 char *sch = STR(CHILD(n, i)); | |
| 2264 strcpy(s, STR(CHILD(n, i))); | |
| 2265 s += strlen(sch); | |
| 2266 *s++ = '.'; | |
| 2267 } | |
| 2268 --s; | |
| 2269 *s = '\0'; | |
| 2270 PyString_InternInPlace(&str); | |
|
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
|
2271 PyArena_AddPyObject(c->c_arena, 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
|
2272 return alias(str, NULL, c->c_arena); |
| 35742 | 2273 } |
| 2274 break; | |
| 2275 case STAR: | |
|
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
|
2276 str = PyString_InternFromString("*"); |
|
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
|
2277 PyArena_AddPyObject(c->c_arena, 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
|
2278 return alias(str, NULL, c->c_arena); |
| 35742 | 2279 default: |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2280 PyErr_Format(PyExc_SystemError, |
| 35742 | 2281 "unexpected import name: %d", TYPE(n)); |
| 2282 return NULL; | |
| 2283 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2284 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2285 PyErr_SetString(PyExc_SystemError, "unhandled import name condition"); |
| 35742 | 2286 return NULL; |
| 2287 } | |
| 2288 | |
| 2289 static stmt_ty | |
| 2290 ast_for_import_stmt(struct compiling *c, const node *n) | |
| 2291 { | |
| 2292 /* | |
| 2293 import_stmt: import_name | import_from | |
| 2294 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
|
2295 import_from: 'from' ('.'* dotted_name | '.') 'import' |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2296 ('*' | '(' import_as_names ')' | import_as_names) |
| 35742 | 2297 */ |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2298 int lineno; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2299 int col_offset; |
| 35742 | 2300 int i; |
| 2301 asdl_seq *aliases; | |
| 2302 | |
| 2303 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
|
2304 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2305 col_offset = n->n_col_offset; |
| 35742 | 2306 n = CHILD(n, 0); |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2307 if (TYPE(n) == import_name) { |
| 35742 | 2308 n = CHILD(n, 1); |
|
35771
044d8e0f65f2
Add an assert.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35759
diff
changeset
|
2309 REQ(n, dotted_as_names); |
|
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
|
2310 aliases = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 2311 if (!aliases) |
| 2312 return NULL; | |
| 2313 for (i = 0; i < NCH(n); i += 2) { | |
|
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
|
2314 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2315 if (!import_alias) |
| 35742 | 2316 return NULL; |
| 2317 asdl_seq_SET(aliases, i / 2, import_alias); | |
| 2318 } | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2319 return Import(aliases, lineno, col_offset, c->c_arena); |
| 35742 | 2320 } |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2321 else if (TYPE(n) == import_from) { |
| 35742 | 2322 int n_children; |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2323 int idx, ndots = 0; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2324 alias_ty mod = NULL; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2325 identifier modname; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2326 |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2327 /* Count the number of dots (for relative imports) and check for the |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2328 optional module name */ |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2329 for (idx = 1; idx < NCH(n); idx++) { |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2330 if (TYPE(CHILD(n, idx)) == dotted_name) { |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2331 mod = alias_for_import_name(c, CHILD(n, idx)); |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2332 idx++; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2333 break; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2334 } else if (TYPE(CHILD(n, idx)) != DOT) { |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2335 break; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2336 } |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2337 ndots++; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2338 } |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2339 idx++; /* skip over the 'import' keyword */ |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2340 switch (TYPE(CHILD(n, idx))) { |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2341 case STAR: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2342 /* from ... import * */ |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2343 n = CHILD(n, idx); |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2344 n_children = 1; |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2345 if (ndots) { |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2346 ast_error(n, "'import *' not allowed with 'from .'"); |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2347 return NULL; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2348 } |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2349 break; |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2350 case LPAR: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2351 /* from ... import (x, y, z) */ |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2352 n = CHILD(n, idx + 1); |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2353 n_children = NCH(n); |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2354 break; |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2355 case import_as_names: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2356 /* from ... import x, y, z */ |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2357 n = CHILD(n, idx); |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2358 n_children = NCH(n); |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2359 if (n_children % 2 == 0) { |
| 35742 | 2360 ast_error(n, "trailing comma not allowed without" |
| 2361 " surrounding parentheses"); | |
| 2362 return NULL; | |
| 2363 } | |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2364 break; |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2365 default: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2366 ast_error(n, "Unexpected node-type in from-import"); |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2367 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
|
2368 } |
| 35742 | 2369 |
|
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
|
2370 aliases = asdl_seq_new((n_children + 1) / 2, c->c_arena); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2371 if (!aliases) |
| 35742 | 2372 return NULL; |
| 2373 | |
| 2374 /* handle "from ... import *" special b/c there's no children */ | |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2375 if (TYPE(n) == STAR) { |
|
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
|
2376 alias_ty import_alias = alias_for_import_name(c, n); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2377 if (!import_alias) |
| 35742 | 2378 return NULL; |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2379 asdl_seq_SET(aliases, 0, import_alias); |
| 35742 | 2380 } |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2381 else { |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2382 for (i = 0; i < NCH(n); i += 2) { |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2383 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i)); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2384 if (!import_alias) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2385 return NULL; |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2386 asdl_seq_SET(aliases, i / 2, import_alias); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2387 } |
| 35742 | 2388 } |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2389 if (mod != NULL) |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2390 modname = mod->name; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2391 else |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2392 modname = new_identifier("", c->c_arena); |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2393 return ImportFrom(modname, aliases, ndots, lineno, col_offset, |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2394 c->c_arena); |
| 35742 | 2395 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2396 PyErr_Format(PyExc_SystemError, |
| 35742 | 2397 "unknown import statement: starts with command '%s'", |
| 2398 STR(CHILD(n, 0))); | |
| 2399 return NULL; | |
| 2400 } | |
| 2401 | |
| 2402 static stmt_ty | |
| 2403 ast_for_global_stmt(struct compiling *c, const node *n) | |
| 2404 { | |
| 2405 /* global_stmt: 'global' NAME (',' NAME)* */ | |
| 2406 identifier name; | |
| 2407 asdl_seq *s; | |
| 2408 int i; | |
| 2409 | |
| 2410 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
|
2411 s = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 2412 if (!s) |
| 2413 return NULL; | |
| 2414 for (i = 1; i < NCH(n); i += 2) { | |
| 2415 name = NEW_IDENTIFIER(CHILD(n, i)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2416 if (!name) |
| 35742 | 2417 return NULL; |
| 2418 asdl_seq_SET(s, i / 2, name); | |
| 2419 } | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2420 return Global(s, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2421 } |
| 2422 | |
| 2423 static stmt_ty | |
| 2424 ast_for_exec_stmt(struct compiling *c, const node *n) | |
| 2425 { | |
| 2426 expr_ty expr1, globals = NULL, locals = NULL; | |
| 2427 int n_children = NCH(n); | |
| 2428 if (n_children != 2 && n_children != 4 && n_children != 6) { | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2429 PyErr_Format(PyExc_SystemError, |
| 35742 | 2430 "poorly formed 'exec' statement: %d parts to statement", |
| 2431 n_children); | |
| 2432 return NULL; | |
| 2433 } | |
| 2434 | |
| 2435 /* exec_stmt: 'exec' expr ['in' test [',' test]] */ | |
| 2436 REQ(n, exec_stmt); | |
| 2437 expr1 = ast_for_expr(c, CHILD(n, 1)); | |
| 2438 if (!expr1) | |
| 2439 return NULL; | |
| 2440 if (n_children >= 4) { | |
| 2441 globals = ast_for_expr(c, CHILD(n, 3)); | |
| 2442 if (!globals) | |
| 2443 return NULL; | |
| 2444 } | |
| 2445 if (n_children == 6) { | |
| 2446 locals = ast_for_expr(c, CHILD(n, 5)); | |
| 2447 if (!locals) | |
| 2448 return NULL; | |
| 2449 } | |
| 2450 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2451 return Exec(expr1, globals, locals, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2452 } |
| 2453 | |
| 2454 static stmt_ty | |
| 2455 ast_for_assert_stmt(struct compiling *c, const node *n) | |
| 2456 { | |
| 2457 /* assert_stmt: 'assert' test [',' test] */ | |
| 2458 REQ(n, assert_stmt); | |
| 2459 if (NCH(n) == 2) { | |
| 2460 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2461 if (!expression) | |
| 2462 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2463 return Assert(expression, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2464 } |
| 2465 else if (NCH(n) == 4) { | |
| 2466 expr_ty expr1, expr2; | |
| 2467 | |
| 2468 expr1 = ast_for_expr(c, CHILD(n, 1)); | |
| 2469 if (!expr1) | |
| 2470 return NULL; | |
| 2471 expr2 = ast_for_expr(c, CHILD(n, 3)); | |
| 2472 if (!expr2) | |
| 2473 return NULL; | |
| 2474 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2475 return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2476 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2477 PyErr_Format(PyExc_SystemError, |
| 35742 | 2478 "improper number of parts to 'assert' statement: %d", |
| 2479 NCH(n)); | |
| 2480 return NULL; | |
| 2481 } | |
| 2482 | |
| 2483 static asdl_seq * | |
| 2484 ast_for_suite(struct compiling *c, const node *n) | |
| 2485 { | |
| 2486 /* 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
|
2487 asdl_seq *seq; |
| 35742 | 2488 stmt_ty s; |
| 2489 int i, total, num, end, pos = 0; | |
| 2490 node *ch; | |
| 2491 | |
| 2492 REQ(n, suite); | |
| 2493 | |
| 2494 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
|
2495 seq = asdl_seq_new(total, c->c_arena); |
| 35742 | 2496 if (!seq) |
| 2497 return NULL; | |
| 2498 if (TYPE(CHILD(n, 0)) == simple_stmt) { | |
| 2499 n = CHILD(n, 0); | |
| 2500 /* simple_stmt always ends with a NEWLINE, | |
| 2501 and may have a trailing SEMI | |
| 2502 */ | |
| 2503 end = NCH(n) - 1; | |
| 2504 if (TYPE(CHILD(n, end - 1)) == SEMI) | |
| 2505 end--; | |
| 2506 /* loop by 2 to skip semi-colons */ | |
| 2507 for (i = 0; i < end; i += 2) { | |
| 2508 ch = CHILD(n, i); | |
| 2509 s = ast_for_stmt(c, ch); | |
| 2510 if (!s) | |
|
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
|
2511 return NULL; |
| 35742 | 2512 asdl_seq_SET(seq, pos++, s); |
| 2513 } | |
| 2514 } | |
| 2515 else { | |
| 2516 for (i = 2; i < (NCH(n) - 1); i++) { | |
| 2517 ch = CHILD(n, i); | |
| 2518 REQ(ch, stmt); | |
| 2519 num = num_stmts(ch); | |
| 2520 if (num == 1) { | |
| 2521 /* small_stmt or compound_stmt with only one child */ | |
| 2522 s = ast_for_stmt(c, ch); | |
| 2523 if (!s) | |
|
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
|
2524 return NULL; |
| 35742 | 2525 asdl_seq_SET(seq, pos++, s); |
| 2526 } | |
| 2527 else { | |
| 2528 int j; | |
| 2529 ch = CHILD(ch, 0); | |
| 2530 REQ(ch, simple_stmt); | |
| 2531 for (j = 0; j < NCH(ch); j += 2) { | |
|
36001
6321669f2f4d
SF #1377897, Bus error in ast
Neal Norwitz <nnorwitz@gmail.com>
parents:
36000
diff
changeset
|
2532 /* statement terminates with a semi-colon ';' */ |
|
6321669f2f4d
SF #1377897, Bus error in ast
Neal Norwitz <nnorwitz@gmail.com>
parents:
36000
diff
changeset
|
2533 if (NCH(CHILD(ch, j)) == 0) { |
|
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
|
2534 assert((j + 1) == NCH(ch)); |
|
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
|
2535 break; |
|
36001
6321669f2f4d
SF #1377897, Bus error in ast
Neal Norwitz <nnorwitz@gmail.com>
parents:
36000
diff
changeset
|
2536 } |
| 35742 | 2537 s = ast_for_stmt(c, CHILD(ch, j)); |
| 2538 if (!s) | |
|
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
|
2539 return NULL; |
| 35742 | 2540 asdl_seq_SET(seq, pos++, s); |
| 2541 } | |
| 2542 } | |
| 2543 } | |
| 2544 } | |
| 2545 assert(pos == seq->size); | |
| 2546 return seq; | |
| 2547 } | |
| 2548 | |
| 2549 static stmt_ty | |
| 2550 ast_for_if_stmt(struct compiling *c, const node *n) | |
| 2551 { | |
| 2552 /* if_stmt: 'if' test ':' suite ('elif' test ':' suite)* | |
| 2553 ['else' ':' suite] | |
| 2554 */ | |
| 2555 char *s; | |
| 2556 | |
| 2557 REQ(n, if_stmt); | |
| 2558 | |
| 2559 if (NCH(n) == 4) { | |
| 2560 expr_ty expression; | |
| 2561 asdl_seq *suite_seq; | |
| 2562 | |
| 2563 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2564 if (!expression) | |
| 2565 return NULL; | |
| 2566 suite_seq = ast_for_suite(c, CHILD(n, 3)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2567 if (!suite_seq) |
| 35742 | 2568 return NULL; |
| 2569 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2570 return If(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2571 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2572 |
| 35742 | 2573 s = STR(CHILD(n, 4)); |
| 2574 /* s[2], the third character in the string, will be | |
| 2575 's' for el_s_e, or | |
| 2576 'i' for el_i_f | |
| 2577 */ | |
| 2578 if (s[2] == 's') { | |
| 2579 expr_ty expression; | |
| 2580 asdl_seq *seq1, *seq2; | |
| 2581 | |
| 2582 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2583 if (!expression) | |
| 2584 return NULL; | |
| 2585 seq1 = ast_for_suite(c, CHILD(n, 3)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2586 if (!seq1) |
| 35742 | 2587 return NULL; |
| 2588 seq2 = 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
|
2589 if (!seq2) |
| 35742 | 2590 return NULL; |
| 2591 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2592 return If(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2593 } |
| 2594 else if (s[2] == 'i') { | |
| 2595 int i, n_elif, has_else = 0; | |
| 2596 asdl_seq *orelse = NULL; | |
| 2597 n_elif = NCH(n) - 4; | |
| 2598 /* must reference the child n_elif+1 since 'else' token is third, | |
| 2599 not fourth, child from the end. */ | |
| 2600 if (TYPE(CHILD(n, (n_elif + 1))) == NAME | |
| 2601 && STR(CHILD(n, (n_elif + 1)))[2] == 's') { | |
| 2602 has_else = 1; | |
| 2603 n_elif -= 3; | |
| 2604 } | |
| 2605 n_elif /= 4; | |
| 2606 | |
| 2607 if (has_else) { | |
| 2608 expr_ty expression; | |
| 2609 asdl_seq *seq1, *seq2; | |
| 2610 | |
|
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
|
2611 orelse = asdl_seq_new(1, c->c_arena); |
| 35742 | 2612 if (!orelse) |
| 2613 return NULL; | |
| 2614 expression = ast_for_expr(c, CHILD(n, NCH(n) - 6)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2615 if (!expression) |
| 35742 | 2616 return NULL; |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2617 seq1 = ast_for_suite(c, CHILD(n, NCH(n) - 4)); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2618 if (!seq1) |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2619 return NULL; |
| 35742 | 2620 seq2 = ast_for_suite(c, CHILD(n, NCH(n) - 1)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2621 if (!seq2) |
| 35742 | 2622 return NULL; |
| 2623 | |
| 2624 asdl_seq_SET(orelse, 0, If(expression, seq1, seq2, | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2625 LINENO(CHILD(n, NCH(n) - 6)), CHILD(n, NCH(n) - 6)->n_col_offset, |
|
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
|
2626 c->c_arena)); |
| 35742 | 2627 /* the just-created orelse handled the last elif */ |
| 2628 n_elif--; | |
| 2629 } | |
| 2630 | |
| 2631 for (i = 0; i < n_elif; i++) { | |
| 2632 int off = 5 + (n_elif - i - 1) * 4; | |
| 2633 expr_ty expression; | |
| 2634 asdl_seq *suite_seq; | |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
2635 asdl_seq *newobj = asdl_seq_new(1, c->c_arena); |
|
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
2636 if (!newobj) |
| 35742 | 2637 return NULL; |
| 2638 expression = ast_for_expr(c, CHILD(n, off)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2639 if (!expression) |
| 35742 | 2640 return NULL; |
| 2641 suite_seq = ast_for_suite(c, CHILD(n, off + 2)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2642 if (!suite_seq) |
| 35742 | 2643 return NULL; |
| 2644 | |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
2645 asdl_seq_SET(newobj, 0, |
| 35742 | 2646 If(expression, suite_seq, orelse, |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2647 LINENO(CHILD(n, off)), CHILD(n, off)->n_col_offset, c->c_arena)); |
|
37597
2b2e9c388fbb
low-hanging fruit in Python/ - g++ still hates all the enum_kind declarations
Anthony Baxter <anthonybaxter@gmail.com>
parents:
37453
diff
changeset
|
2648 orelse = newobj; |
| 35742 | 2649 } |
| 2650 return If(ast_for_expr(c, CHILD(n, 1)), | |
| 2651 ast_for_suite(c, CHILD(n, 3)), | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2652 orelse, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2653 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2654 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2655 PyErr_Format(PyExc_SystemError, |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2656 "unexpected token in 'if' statement: %s", s); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2657 return NULL; |
| 35742 | 2658 } |
| 2659 | |
| 2660 static stmt_ty | |
| 2661 ast_for_while_stmt(struct compiling *c, const node *n) | |
| 2662 { | |
| 2663 /* while_stmt: 'while' test ':' suite ['else' ':' suite] */ | |
| 2664 REQ(n, while_stmt); | |
| 2665 | |
| 2666 if (NCH(n) == 4) { | |
| 2667 expr_ty expression; | |
| 2668 asdl_seq *suite_seq; | |
| 2669 | |
| 2670 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2671 if (!expression) | |
| 2672 return NULL; | |
| 2673 suite_seq = ast_for_suite(c, CHILD(n, 3)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2674 if (!suite_seq) |
| 35742 | 2675 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2676 return While(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2677 } |
| 2678 else if (NCH(n) == 7) { | |
| 2679 expr_ty expression; | |
| 2680 asdl_seq *seq1, *seq2; | |
| 2681 | |
| 2682 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2683 if (!expression) | |
| 2684 return NULL; | |
| 2685 seq1 = ast_for_suite(c, CHILD(n, 3)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2686 if (!seq1) |
| 35742 | 2687 return NULL; |
| 2688 seq2 = 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
|
2689 if (!seq2) |
| 35742 | 2690 return NULL; |
| 2691 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2692 return While(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2693 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2694 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2695 PyErr_Format(PyExc_SystemError, |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2696 "wrong number of tokens for 'while' statement: %d", |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2697 NCH(n)); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2698 return NULL; |
| 35742 | 2699 } |
| 2700 | |
| 2701 static stmt_ty | |
| 2702 ast_for_for_stmt(struct compiling *c, const node *n) | |
| 2703 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2704 asdl_seq *_target, *seq = NULL, *suite_seq; |
| 35742 | 2705 expr_ty expression; |
| 2706 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
|
2707 const node *node_target; |
| 35742 | 2708 /* for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] */ |
| 2709 REQ(n, for_stmt); | |
| 2710 | |
| 2711 if (NCH(n) == 9) { | |
| 2712 seq = ast_for_suite(c, CHILD(n, 8)); | |
| 2713 if (!seq) | |
| 2714 return NULL; | |
| 2715 } | |
| 2716 | |
|
39067
7182c2775c1e
Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again.
Neal Norwitz <nnorwitz@gmail.com>
parents:
39038
diff
changeset
|
2717 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
|
2718 _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
|
2719 if (!_target) |
| 35742 | 2720 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
|
2721 /* 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
|
2722 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
|
2723 if (NCH(node_target) == 1) |
|
37604
c732f66c913f
Convert 0 to their respective enum types. Convert
Martin v. Löwis <martin@v.loewis.de>
parents:
37597
diff
changeset
|
2724 target = (expr_ty)asdl_seq_GET(_target, 0); |
| 35742 | 2725 else |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2726 target = Tuple(_target, Store, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2727 |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2728 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
|
2729 if (!expression) |
| 35742 | 2730 return NULL; |
| 2731 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
|
2732 if (!suite_seq) |
| 35742 | 2733 return NULL; |
| 2734 | |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2735 return For(target, expression, suite_seq, seq, LINENO(n), n->n_col_offset, |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2736 c->c_arena); |
| 35742 | 2737 } |
| 2738 | |
| 2739 static excepthandler_ty | |
| 2740 ast_for_except_clause(struct compiling *c, const node *exc, node *body) | |
| 2741 { | |
| 2742 /* except_clause: 'except' [test [',' test]] */ | |
| 2743 REQ(exc, except_clause); | |
| 2744 REQ(body, suite); | |
| 2745 | |
| 2746 if (NCH(exc) == 1) { | |
| 2747 asdl_seq *suite_seq = ast_for_suite(c, body); | |
| 2748 if (!suite_seq) | |
| 2749 return NULL; | |
| 2750 | |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2751 return excepthandler(NULL, NULL, suite_seq, LINENO(exc), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2752 exc->n_col_offset, c->c_arena); |
| 35742 | 2753 } |
| 2754 else if (NCH(exc) == 2) { | |
| 2755 expr_ty expression; | |
| 2756 asdl_seq *suite_seq; | |
| 2757 | |
| 2758 expression = ast_for_expr(c, CHILD(exc, 1)); | |
| 2759 if (!expression) | |
| 2760 return NULL; | |
| 2761 suite_seq = ast_for_suite(c, body); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2762 if (!suite_seq) |
| 35742 | 2763 return NULL; |
| 2764 | |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2765 return excepthandler(expression, NULL, suite_seq, LINENO(exc), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2766 exc->n_col_offset, c->c_arena); |
| 35742 | 2767 } |
| 2768 else if (NCH(exc) == 4) { | |
| 2769 asdl_seq *suite_seq; | |
| 2770 expr_ty expression; | |
| 2771 expr_ty e = ast_for_expr(c, CHILD(exc, 3)); | |
| 2772 if (!e) | |
| 2773 return NULL; | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2774 if (!set_context(e, Store, CHILD(exc, 3))) |
| 35742 | 2775 return NULL; |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2776 expression = ast_for_expr(c, CHILD(exc, 1)); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2777 if (!expression) |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2778 return NULL; |
| 35742 | 2779 suite_seq = ast_for_suite(c, body); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2780 if (!suite_seq) |
| 35742 | 2781 return NULL; |
| 2782 | |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2783 return excepthandler(expression, e, suite_seq, LINENO(exc), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2784 exc->n_col_offset, c->c_arena); |
| 35742 | 2785 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2786 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2787 PyErr_Format(PyExc_SystemError, |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2788 "wrong number of children for 'except' clause: %d", |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2789 NCH(exc)); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2790 return NULL; |
| 35742 | 2791 } |
| 2792 | |
| 2793 static stmt_ty | |
| 2794 ast_for_try_stmt(struct compiling *c, const node *n) | |
| 2795 { | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2796 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
|
2797 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
|
2798 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
|
2799 |
| 35742 | 2800 REQ(n, try_stmt); |
| 2801 | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2802 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
|
2803 if (body == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2804 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2805 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2806 if (TYPE(CHILD(n, nch - 3)) == NAME) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2807 if (strcmp(STR(CHILD(n, nch - 3)), "finally") == 0) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2808 if (nch >= 9 && TYPE(CHILD(n, nch - 6)) == NAME) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2809 /* we can assume it's an "else", |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2810 because nch >= 9 for try-else-finally and |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2811 it would otherwise have a type of except_clause */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2812 orelse = ast_for_suite(c, CHILD(n, nch - 4)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2813 if (orelse == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2814 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2815 n_except--; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2816 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2817 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2818 finally = ast_for_suite(c, CHILD(n, nch - 1)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2819 if (finally == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2820 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2821 n_except--; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2822 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2823 else { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2824 /* we can assume it's an "else", |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2825 otherwise it would have a type of except_clause */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2826 orelse = ast_for_suite(c, CHILD(n, nch - 1)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2827 if (orelse == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2828 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2829 n_except--; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2830 } |
| 35742 | 2831 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2832 else if (TYPE(CHILD(n, nch - 3)) != except_clause) { |
|
35867
f4842f42700b
remove useless debug print helper. fix a couple of exceptions
Neal Norwitz <nnorwitz@gmail.com>
parents:
35799
diff
changeset
|
2833 ast_error(n, "malformed 'try' statement"); |
| 35742 | 2834 return NULL; |
| 2835 } | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2836 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2837 if (n_except > 0) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2838 int i; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2839 stmt_ty except_st; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2840 /* process except statements to create a try ... except */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2841 asdl_seq *handlers = asdl_seq_new(n_except, c->c_arena); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2842 if (handlers == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2843 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2844 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2845 for (i = 0; i < n_except; i++) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2846 excepthandler_ty e = ast_for_except_clause(c, CHILD(n, 3 + i * 3), |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2847 CHILD(n, 5 + i * 3)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2848 if (!e) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2849 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2850 asdl_seq_SET(handlers, i, e); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2851 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2852 |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2853 except_st = TryExcept(body, handlers, orelse, LINENO(n), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2854 n->n_col_offset, c->c_arena); |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2855 if (!finally) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2856 return except_st; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2857 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2858 /* if a 'finally' is present too, we nest the TryExcept within a |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2859 TryFinally to emulate try ... except ... finally */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2860 body = asdl_seq_new(1, c->c_arena); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2861 if (body == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2862 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2863 asdl_seq_SET(body, 0, except_st); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2864 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2865 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2866 /* 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
|
2867 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
|
2868 return TryFinally(body, finally, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2869 } |
| 2870 | |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2871 static expr_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2872 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
|
2873 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2874 REQ(n, with_var); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2875 if (strcmp(STR(CHILD(n, 0)), "as") != 0) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2876 ast_error(n, "expected \"with [expr] as [var]\""); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2877 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2878 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2879 return ast_for_expr(c, CHILD(n, 1)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2880 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2881 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2882 /* with_stmt: 'with' test [ with_var ] ':' suite */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2883 static stmt_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2884 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
|
2885 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2886 expr_ty context_expr, optional_vars = NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2887 int suite_index = 3; /* skip 'with', test, and ':' */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2888 asdl_seq *suite_seq; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2889 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2890 assert(TYPE(n) == with_stmt); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2891 context_expr = ast_for_expr(c, CHILD(n, 1)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2892 if (TYPE(CHILD(n, 2)) == with_var) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2893 optional_vars = ast_for_with_var(c, CHILD(n, 2)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2894 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2895 if (!optional_vars) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2896 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2897 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2898 if (!set_context(optional_vars, Store, n)) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2899 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2900 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2901 suite_index = 4; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2902 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2903 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2904 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
|
2905 if (!suite_seq) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2906 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2907 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2908 return With(context_expr, optional_vars, suite_seq, LINENO(n), |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2909 n->n_col_offset, c->c_arena); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2910 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2911 |
| 35742 | 2912 static stmt_ty |
| 2913 ast_for_classdef(struct compiling *c, const node *n) | |
| 2914 { | |
| 2915 /* classdef: 'class' NAME ['(' testlist ')'] ':' suite */ | |
| 2916 asdl_seq *bases, *s; | |
| 2917 | |
| 2918 REQ(n, classdef); | |
| 2919 | |
| 2920 if (!strcmp(STR(CHILD(n, 1)), "None")) { | |
| 2921 ast_error(n, "assignment to None"); | |
| 2922 return NULL; | |
| 2923 } | |
| 2924 | |
| 2925 if (NCH(n) == 4) { | |
| 2926 s = ast_for_suite(c, CHILD(n, 3)); | |
| 2927 if (!s) | |
| 2928 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
|
2929 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2930 n->n_col_offset, c->c_arena); |
| 35742 | 2931 } |
| 2932 /* check for empty base list */ | |
| 2933 if (TYPE(CHILD(n,3)) == RPAR) { | |
| 2934 s = ast_for_suite(c, CHILD(n,5)); | |
| 2935 if (!s) | |
| 2936 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
|
2937 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2938 n->n_col_offset, c->c_arena); |
| 35742 | 2939 } |
| 2940 | |
| 2941 /* 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
|
2942 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
|
2943 if (!bases) |
| 35742 | 2944 return NULL; |
| 2945 | |
| 2946 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
|
2947 if (!s) |
| 35742 | 2948 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
|
2949 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), bases, s, LINENO(n), |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
2950 n->n_col_offset, c->c_arena); |
| 35742 | 2951 } |
| 2952 | |
| 2953 static stmt_ty | |
| 2954 ast_for_stmt(struct compiling *c, const node *n) | |
| 2955 { | |
| 2956 if (TYPE(n) == stmt) { | |
| 2957 assert(NCH(n) == 1); | |
| 2958 n = CHILD(n, 0); | |
| 2959 } | |
| 2960 if (TYPE(n) == simple_stmt) { | |
| 2961 assert(num_stmts(n) == 1); | |
| 2962 n = CHILD(n, 0); | |
| 2963 } | |
| 2964 if (TYPE(n) == small_stmt) { | |
| 2965 REQ(n, small_stmt); | |
| 2966 n = CHILD(n, 0); | |
| 2967 /* small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt | |
| 2968 | flow_stmt | import_stmt | global_stmt | exec_stmt | |
| 2969 | assert_stmt | |
| 2970 */ | |
| 2971 switch (TYPE(n)) { | |
| 2972 case expr_stmt: | |
| 2973 return ast_for_expr_stmt(c, n); | |
| 2974 case print_stmt: | |
| 2975 return ast_for_print_stmt(c, n); | |
| 2976 case del_stmt: | |
| 2977 return ast_for_del_stmt(c, n); | |
| 2978 case pass_stmt: | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2979 return Pass(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2980 case flow_stmt: |
| 2981 return ast_for_flow_stmt(c, n); | |
| 2982 case import_stmt: | |
| 2983 return ast_for_import_stmt(c, n); | |
| 2984 case global_stmt: | |
| 2985 return ast_for_global_stmt(c, n); | |
| 2986 case exec_stmt: | |
| 2987 return ast_for_exec_stmt(c, n); | |
| 2988 case assert_stmt: | |
| 2989 return ast_for_assert_stmt(c, n); | |
| 2990 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2991 PyErr_Format(PyExc_SystemError, |
| 35742 | 2992 "unhandled small_stmt: TYPE=%d NCH=%d\n", |
| 2993 TYPE(n), NCH(n)); | |
| 2994 return NULL; | |
| 2995 } | |
| 2996 } | |
| 2997 else { | |
| 2998 /* compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | |
| 2999 | funcdef | classdef | |
| 3000 */ | |
| 3001 node *ch = CHILD(n, 0); | |
| 3002 REQ(n, compound_stmt); | |
| 3003 switch (TYPE(ch)) { | |
| 3004 case if_stmt: | |
| 3005 return ast_for_if_stmt(c, ch); | |
| 3006 case while_stmt: | |
| 3007 return ast_for_while_stmt(c, ch); | |
| 3008 case for_stmt: | |
| 3009 return ast_for_for_stmt(c, ch); | |
| 3010 case try_stmt: | |
| 3011 return ast_for_try_stmt(c, ch); | |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3012 case with_stmt: |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3013 return ast_for_with_stmt(c, ch); |
| 35742 | 3014 case funcdef: |
| 3015 return ast_for_funcdef(c, ch); | |
| 3016 case classdef: | |
| 3017 return ast_for_classdef(c, ch); | |
| 3018 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
3019 PyErr_Format(PyExc_SystemError, |
| 35742 | 3020 "unhandled small_stmt: TYPE=%d NCH=%d\n", |
| 3021 TYPE(n), NCH(n)); | |
| 3022 return NULL; | |
| 3023 } | |
| 3024 } | |
| 3025 } | |
| 3026 | |
| 3027 static PyObject * | |
| 3028 parsenumber(const char *s) | |
| 3029 { | |
| 3030 const char *end; | |
| 3031 long x; | |
| 3032 double dx; | |
| 3033 #ifndef WITHOUT_COMPLEX | |
| 3034 Py_complex c; | |
| 3035 int imflag; | |
| 3036 #endif | |
| 3037 | |
| 3038 errno = 0; | |
| 3039 end = s + strlen(s) - 1; | |
| 3040 #ifndef WITHOUT_COMPLEX | |
| 3041 imflag = *end == 'j' || *end == 'J'; | |
| 3042 #endif | |
| 3043 if (*end == 'l' || *end == 'L') | |
| 3044 return PyLong_FromString((char *)s, (char **)0, 0); | |
| 3045 if (s[0] == '0') { | |
| 3046 x = (long) PyOS_strtoul((char *)s, (char **)&end, 0); | |
| 3047 if (x < 0 && errno == 0) { | |
| 3048 return PyLong_FromString((char *)s, | |
| 3049 (char **)0, | |
| 3050 0); | |
| 3051 } | |
| 3052 } | |
| 3053 else | |
| 3054 x = PyOS_strtol((char *)s, (char **)&end, 0); | |
| 3055 if (*end == '\0') { | |
| 3056 if (errno != 0) | |
| 3057 return PyLong_FromString((char *)s, (char **)0, 0); | |
| 3058 return PyInt_FromLong(x); | |
| 3059 } | |
| 3060 /* XXX Huge floats may silently fail */ | |
| 3061 #ifndef WITHOUT_COMPLEX | |
| 3062 if (imflag) { | |
| 3063 c.real = 0.; | |
| 3064 PyFPE_START_PROTECT("atof", return 0) | |
| 36155 | 3065 c.imag = PyOS_ascii_atof(s); |
| 35742 | 3066 PyFPE_END_PROTECT(c) |
| 3067 return PyComplex_FromCComplex(c); | |
| 3068 } | |
| 3069 else | |
| 3070 #endif | |
| 3071 { | |
| 3072 PyFPE_START_PROTECT("atof", return 0) | |
| 36155 | 3073 dx = PyOS_ascii_atof(s); |
| 35742 | 3074 PyFPE_END_PROTECT(dx) |
| 3075 return PyFloat_FromDouble(dx); | |
| 3076 } | |
| 3077 } | |
| 3078 | |
| 3079 static PyObject * | |
| 3080 decode_utf8(const char **sPtr, const char *end, char* encoding) | |
| 3081 { | |
| 3082 #ifndef Py_USING_UNICODE | |
| 3083 Py_FatalError("decode_utf8 should not be called in this build."); | |
| 3084 return NULL; | |
| 3085 #else | |
| 3086 PyObject *u, *v; | |
| 3087 char *s, *t; | |
| 3088 t = s = (char *)*sPtr; | |
| 3089 /* while (s < end && *s != '\\') s++; */ /* inefficient for u".." */ | |
| 3090 while (s < end && (*s & 0x80)) s++; | |
| 3091 *sPtr = s; | |
| 3092 u = PyUnicode_DecodeUTF8(t, s - t, NULL); | |
| 3093 if (u == NULL) | |
| 3094 return NULL; | |
| 3095 v = PyUnicode_AsEncodedString(u, encoding, NULL); | |
| 3096 Py_DECREF(u); | |
| 3097 return v; | |
| 3098 #endif | |
| 3099 } | |
| 3100 | |
| 3101 static PyObject * | |
| 3102 decode_unicode(const char *s, size_t len, int rawmode, const char *encoding) | |
| 3103 { | |
| 3104 PyObject *v, *u; | |
| 3105 char *buf; | |
| 3106 char *p; | |
| 3107 const char *end; | |
| 3108 if (encoding == NULL) { | |
| 3109 buf = (char *)s; | |
| 3110 u = NULL; | |
| 3111 } else if (strcmp(encoding, "iso-8859-1") == 0) { | |
| 3112 buf = (char *)s; | |
| 3113 u = NULL; | |
| 3114 } else { | |
| 3115 /* "\XX" may become "\u005c\uHHLL" (12 bytes) */ | |
| 3116 u = PyString_FromStringAndSize((char *)NULL, len * 4); | |
| 3117 if (u == NULL) | |
| 3118 return NULL; | |
| 3119 p = buf = PyString_AsString(u); | |
| 3120 end = s + len; | |
| 3121 while (s < end) { | |
| 3122 if (*s == '\\') { | |
| 3123 *p++ = *s++; | |
| 3124 if (*s & 0x80) { | |
| 3125 strcpy(p, "u005c"); | |
| 3126 p += 5; | |
| 3127 } | |
| 3128 } | |
| 3129 if (*s & 0x80) { /* XXX inefficient */ | |
| 3130 PyObject *w; | |
| 3131 char *r; | |
|
37920
ce5585afc20f
Fix more ssize_t issues.
Martin v. Löwis <martin@v.loewis.de>
parents:
37685
diff
changeset
|
3132 Py_ssize_t rn, i; |
| 35742 | 3133 w = decode_utf8(&s, end, "utf-16-be"); |
| 3134 if (w == NULL) { | |
| 3135 Py_DECREF(u); | |
| 3136 return NULL; | |
| 3137 } | |
| 3138 r = PyString_AsString(w); | |
| 3139 rn = PyString_Size(w); | |
| 3140 assert(rn % 2 == 0); | |
| 3141 for (i = 0; i < rn; i += 2) { | |
| 3142 sprintf(p, "\\u%02x%02x", | |
| 3143 r[i + 0] & 0xFF, | |
| 3144 r[i + 1] & 0xFF); | |
| 3145 p += 6; | |
| 3146 } | |
| 3147 Py_DECREF(w); | |
| 3148 } else { | |
| 3149 *p++ = *s++; | |
| 3150 } | |
| 3151 } | |
| 3152 len = p - buf; | |
| 3153 s = buf; | |
| 3154 } | |
| 3155 if (rawmode) | |
| 3156 v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL); | |
| 3157 else | |
| 3158 v = PyUnicode_DecodeUnicodeEscape(s, len, NULL); | |
| 3159 Py_XDECREF(u); | |
| 3160 return v; | |
| 3161 } | |
| 3162 | |
| 3163 /* s is a Python string literal, including the bracketing quote characters, | |
| 3164 * and r &/or u prefixes (if any), and embedded escape sequences (if any). | |
| 3165 * parsestr parses it, and returns the decoded Python string object. | |
| 3166 */ | |
| 3167 static PyObject * | |
| 3168 parsestr(const char *s, const char *encoding) | |
| 3169 { | |
| 3170 size_t len; | |
|
36090
8cb686dd6e64
Fix SF bug #1072182, problems with signed characters.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36072
diff
changeset
|
3171 int quote = Py_CHARMASK(*s); |
| 35742 | 3172 int rawmode = 0; |
| 3173 int need_encoding; | |
| 3174 int unicode = 0; | |
| 3175 | |
| 3176 if (isalpha(quote) || quote == '_') { | |
| 3177 if (quote == 'u' || quote == 'U') { | |
| 3178 quote = *++s; | |
| 3179 unicode = 1; | |
| 3180 } | |
| 3181 if (quote == 'r' || quote == 'R') { | |
| 3182 quote = *++s; | |
| 3183 rawmode = 1; | |
| 3184 } | |
| 3185 } | |
| 3186 if (quote != '\'' && quote != '\"') { | |
| 3187 PyErr_BadInternalCall(); | |
| 3188 return NULL; | |
| 3189 } | |
| 3190 s++; | |
| 3191 len = strlen(s); | |
| 3192 if (len > INT_MAX) { | |
| 3193 PyErr_SetString(PyExc_OverflowError, | |
| 3194 "string to parse is too long"); | |
| 3195 return NULL; | |
| 3196 } | |
| 3197 if (s[--len] != quote) { | |
| 3198 PyErr_BadInternalCall(); | |
| 3199 return NULL; | |
| 3200 } | |
| 3201 if (len >= 4 && s[0] == quote && s[1] == quote) { | |
| 3202 s += 2; | |
| 3203 len -= 2; | |
| 3204 if (s[--len] != quote || s[--len] != quote) { | |
| 3205 PyErr_BadInternalCall(); | |
| 3206 return NULL; | |
| 3207 } | |
| 3208 } | |
| 3209 #ifdef Py_USING_UNICODE | |
| 3210 if (unicode || Py_UnicodeFlag) { | |
| 3211 return decode_unicode(s, len, rawmode, encoding); | |
| 3212 } | |
| 3213 #endif | |
| 3214 need_encoding = (encoding != NULL && | |
| 3215 strcmp(encoding, "utf-8") != 0 && | |
| 3216 strcmp(encoding, "iso-8859-1") != 0); | |
| 3217 if (rawmode || strchr(s, '\\') == NULL) { | |
| 3218 if (need_encoding) { | |
| 3219 #ifndef Py_USING_UNICODE | |
| 3220 /* This should not happen - we never see any other | |
| 3221 encoding. */ | |
|
37453
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
3222 Py_FatalError( |
|
16a64e394602
Add lineno, col_offset to excephandler to enable future fix for
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
37235
diff
changeset
|
3223 "cannot deal with encodings in this build."); |
| 35742 | 3224 #else |
|
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
|
3225 PyObject *v, *u = PyUnicode_DecodeUTF8(s, len, NULL); |
| 35742 | 3226 if (u == NULL) |
| 3227 return NULL; | |
| 3228 v = PyUnicode_AsEncodedString(u, encoding, NULL); | |
| 3229 Py_DECREF(u); | |
| 3230 return v; | |
| 3231 #endif | |
| 3232 } else { | |
| 3233 return PyString_FromStringAndSize(s, len); | |
| 3234 } | |
| 3235 } | |
| 3236 | |
|
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
|
3237 return PyString_DecodeEscape(s, len, NULL, unicode, |
|
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
|
3238 need_encoding ? encoding : NULL); |
| 35742 | 3239 } |
| 3240 | |
| 3241 /* Build a Python string object out of a STRING atom. This takes care of | |
| 3242 * compile-time literal catenation, calling parsestr() on each piece, and | |
| 3243 * pasting the intermediate results together. | |
| 3244 */ | |
| 3245 static PyObject * | |
| 3246 parsestrplus(struct compiling *c, const node *n) | |
| 3247 { | |
| 3248 PyObject *v; | |
| 3249 int i; | |
| 3250 REQ(CHILD(n, 0), STRING); | |
| 3251 if ((v = parsestr(STR(CHILD(n, 0)), c->c_encoding)) != NULL) { | |
| 3252 /* String literal concatenation */ | |
| 3253 for (i = 1; i < NCH(n); i++) { | |
| 3254 PyObject *s; | |
| 3255 s = parsestr(STR(CHILD(n, i)), c->c_encoding); | |
| 3256 if (s == NULL) | |
| 3257 goto onError; | |
| 3258 if (PyString_Check(v) && PyString_Check(s)) { | |
| 3259 PyString_ConcatAndDel(&v, s); | |
| 3260 if (v == NULL) | |
| 3261 goto onError; | |
| 3262 } | |
| 3263 #ifdef Py_USING_UNICODE | |
| 3264 else { | |
|
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
|
3265 PyObject *temp = PyUnicode_Concat(v, s); |
| 35742 | 3266 Py_DECREF(s); |
| 3267 Py_DECREF(v); | |
| 3268 v = temp; | |
|
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
|
3269 if (v == NULL) |
|
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
|
3270 goto onError; |
| 35742 | 3271 } |
| 3272 #endif | |
| 3273 } | |
| 3274 } | |
| 3275 return v; | |
| 3276 | |
| 3277 onError: | |
| 3278 Py_XDECREF(v); | |
| 3279 return NULL; | |
| 3280 } |