Mercurial > cpython-lru_cache-weakref
annotate Python/ast.c @ 40382:d75b0caa67db
The rest of patch 1549670 by Jiwon, making the compiler test pass.
This removes some bogus debug stuff Jiwon accidentally left in last time.
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Wed, 22 Nov 2006 04:55:53 +0000 |
| parents | 1cce0526d9b0 |
| children | cc992d75d5b3 |
| 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,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
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10 #include "pyarena.h" |
| 35742 | 11 #include "ast.h" |
| 12 #include "token.h" | |
| 13 #include "parsetok.h" | |
| 14 #include "graminit.h" | |
| 15 | |
| 16 #include <assert.h> | |
| 17 | |
| 18 /* 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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parents:
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34 static asdl_seq *ast_for_exprlist(struct compiling *, const node *, expr_context_ty); |
|
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Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
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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:
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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) { |
|
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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:
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51 PyObject* id = PyString_InternFromString(n); |
|
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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
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52 PyArena_AddPyObject(arena, id); |
|
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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:
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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:
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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:
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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).
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parents:
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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
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changeset
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94 Py_DECREF(errstr); |
| 35742 | 95 return; |
|
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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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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 } | |
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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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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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SF #1370197, memory leak - ast_error_finish (in error conditions).
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parents:
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109 } |
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Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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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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Neal Norwitz <nnorwitz@gmail.com>
parents:
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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,
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parents:
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changeset
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184 PyArena *arena) |
| 35742 | 185 { |
|
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Remove asdl_seq_APPEND() and simplify asdl seq implementation.
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parents:
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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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Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
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193 c.c_encoding = "utf-8"; |
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parents:
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194 if (TYPE(n) == encoding_decl) { |
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f731859e9b3b
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parents:
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195 ast_error(n, "encoding declaration in Unicode string"); |
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196 goto error; |
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Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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parents:
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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
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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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204 c.c_arena = arena; |
| 35742 | 205 |
|
36718
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Remove asdl_seq_APPEND() and simplify asdl seq implementation.
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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
|
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; | |
|
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parents:
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diff
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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
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parents:
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changeset
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231 asdl_seq_SET(stmts, k++, s); |
| 35742 | 232 } |
| 233 } | |
| 234 } | |
|
36065
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Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
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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:
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diff
changeset
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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
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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; | |
|
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f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
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changeset
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250 asdl_seq_SET(stmts, 0, Pass(n->n_lineno, n->n_col_offset, |
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f731859e9b3b
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parents:
36877
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changeset
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251 arena)); |
|
36065
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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:
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diff
changeset
|
252 return Interactive(stmts, arena); |
| 35742 | 253 } |
| 254 else { | |
| 255 n = CHILD(n, 0); | |
| 256 num = num_stmts(n); | |
|
36065
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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
|
257 stmts = asdl_seq_new(num, arena); |
| 35742 | 258 if (!stmts) |
| 259 goto error; | |
| 260 if (num == 1) { | |
|
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Fix icc warnings: shadowing local variables
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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 | |
|
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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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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: | |
|
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Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
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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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334 /* If a particular expression type can't be used for assign / delete, |
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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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337 const char* expr_name = NULL; |
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Improved handling of syntax errors.
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parents:
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diff
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338 |
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parents:
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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.
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parents:
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340 implementation here doesn't actually use them. The code may be |
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341 a little more complex than necessary as a result. It also means |
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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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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; |
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390 case Yield_kind: |
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391 expr_name = "yield expression"; |
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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: |
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397 case Set_kind: |
| 35742 | 398 case Num_kind: |
| 399 case Str_kind: | |
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400 expr_name = "literal"; |
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401 break; |
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402 case Ellipsis_kind: |
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403 expr_name = "Ellipsis"; |
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404 break; |
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405 case Compare_kind: |
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406 expr_name = "comparison"; |
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407 break; |
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408 case IfExp_kind: |
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409 expr_name = "conditional expression"; |
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410 break; |
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411 default: |
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412 PyErr_Format(PyExc_SystemError, |
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413 "unexpected expression in assignment %d (line %d)", |
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414 e->kind, e->lineno); |
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415 return 0; |
| 35742 | 416 } |
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417 /* Check for error string set by switch */ |
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418 if (expr_name) { |
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419 char buf[300]; |
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420 PyOS_snprintf(buf, sizeof(buf), |
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421 "can't %s %s", |
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422 ctx == Store ? "assign to" : "delete", |
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423 expr_name); |
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424 return ast_error(n, buf); |
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425 } |
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426 |
| 35742 | 427 /* If the LHS is a list or tuple, we need to set the assignment |
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428 context for all the contained elements. |
| 35742 | 429 */ |
| 430 if (s) { | |
| 431 int i; | |
| 432 | |
| 433 for (i = 0; i < asdl_seq_LEN(s); i++) { | |
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434 if (!set_context((expr_ty)asdl_seq_GET(s, i), ctx, n)) |
| 35742 | 435 return 0; |
| 436 } | |
| 437 } | |
| 438 return 1; | |
| 439 } | |
| 440 | |
| 441 static operator_ty | |
| 442 ast_for_augassign(const node *n) | |
| 443 { | |
| 444 REQ(n, augassign); | |
| 445 n = CHILD(n, 0); | |
| 446 switch (STR(n)[0]) { | |
| 447 case '+': | |
| 448 return Add; | |
| 449 case '-': | |
| 450 return Sub; | |
| 451 case '/': | |
| 452 if (STR(n)[1] == '/') | |
| 453 return FloorDiv; | |
| 454 else | |
| 455 return Div; | |
| 456 case '%': | |
| 457 return Mod; | |
| 458 case '<': | |
| 459 return LShift; | |
| 460 case '>': | |
| 461 return RShift; | |
| 462 case '&': | |
| 463 return BitAnd; | |
| 464 case '^': | |
| 465 return BitXor; | |
| 466 case '|': | |
| 467 return BitOr; | |
| 468 case '*': | |
| 469 if (STR(n)[1] == '*') | |
| 470 return Pow; | |
| 471 else | |
| 472 return Mult; | |
| 473 default: | |
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474 PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n)); |
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475 return (operator_ty)0; |
| 35742 | 476 } |
| 477 } | |
| 478 | |
| 479 static cmpop_ty | |
| 480 ast_for_comp_op(const node *n) | |
| 481 { | |
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482 /* comp_op: '<'|'>'|'=='|'>='|'<='|'!='|'in'|'not' 'in'|'is' |
| 35742 | 483 |'is' 'not' |
| 484 */ | |
| 485 REQ(n, comp_op); | |
| 486 if (NCH(n) == 1) { | |
| 487 n = CHILD(n, 0); | |
| 488 switch (TYPE(n)) { | |
| 489 case LESS: | |
| 490 return Lt; | |
| 491 case GREATER: | |
| 492 return Gt; | |
| 493 case EQEQUAL: /* == */ | |
| 494 return Eq; | |
| 495 case LESSEQUAL: | |
| 496 return LtE; | |
| 497 case GREATEREQUAL: | |
| 498 return GtE; | |
| 499 case NOTEQUAL: | |
| 500 return NotEq; | |
| 501 case NAME: | |
| 502 if (strcmp(STR(n), "in") == 0) | |
| 503 return In; | |
| 504 if (strcmp(STR(n), "is") == 0) | |
| 505 return Is; | |
| 506 default: | |
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507 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s", |
| 35742 | 508 STR(n)); |
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509 return (cmpop_ty)0; |
| 35742 | 510 } |
| 511 } | |
| 512 else if (NCH(n) == 2) { | |
| 513 /* handle "not in" and "is not" */ | |
| 514 switch (TYPE(CHILD(n, 0))) { | |
| 515 case NAME: | |
| 516 if (strcmp(STR(CHILD(n, 1)), "in") == 0) | |
| 517 return NotIn; | |
| 518 if (strcmp(STR(CHILD(n, 0)), "is") == 0) | |
| 519 return IsNot; | |
| 520 default: | |
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521 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s", |
| 35742 | 522 STR(CHILD(n, 0)), STR(CHILD(n, 1))); |
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523 return (cmpop_ty)0; |
| 35742 | 524 } |
| 525 } | |
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526 PyErr_Format(PyExc_SystemError, "invalid comp_op: has %d children", |
| 35742 | 527 NCH(n)); |
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528 return (cmpop_ty)0; |
| 35742 | 529 } |
| 530 | |
| 531 static asdl_seq * | |
| 532 seq_for_testlist(struct compiling *c, const node *n) | |
| 533 { | |
| 534 /* testlist: test (',' test)* [','] */ | |
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535 asdl_seq *seq; |
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536 expr_ty expression; |
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537 int i; |
| 35742 | 538 assert(TYPE(n) == testlist |
| 539 || TYPE(n) == listmaker | |
| 540 || TYPE(n) == testlist_gexp | |
| 541 || TYPE(n) == testlist_safe | |
| 542 ); | |
| 543 | |
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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) { | |
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549 assert(TYPE(CHILD(n, i)) == test || TYPE(CHILD(n, i)) == old_test); |
| 35742 | 550 |
| 551 expression = ast_for_expr(c, CHILD(n, i)); | |
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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 | |
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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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566 asdl_seq *args = asdl_seq_new(len, c->c_arena); |
| 35742 | 567 if (!args) |
| 568 return NULL; | |
| 569 | |
| 570 REQ(n, fplist); | |
| 571 for (i = 0; i < len; i++) { | |
| 572 const node *child = CHILD(CHILD(n, 2*i), 0); | |
| 573 expr_ty arg; | |
| 574 if (TYPE(child) == NAME) { | |
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575 if (!strcmp(STR(child), "None")) { |
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576 ast_error(child, "assignment to None"); |
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577 return NULL; |
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578 } |
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579 arg = Name(NEW_IDENTIFIER(child), Store, LINENO(child), |
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580 child->n_col_offset, c->c_arena); |
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581 } |
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582 else { |
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583 arg = compiler_complex_args(c, CHILD(CHILD(n, 2*i), 1)); |
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584 } |
| 35742 | 585 asdl_seq_SET(args, i, arg); |
| 586 } | |
| 587 | |
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57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
588 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
|
589 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
|
590 return NULL; |
| 35742 | 591 return result; |
| 592 } | |
| 593 | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
594 /* returns -1 if failed to handle keyword only arguments |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
595 returns new position to keep processing if successful |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
596 (',' NAME ['=' test])* |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
597 ^^^ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
598 start pointing here |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
599 */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
600 static int |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
601 handle_keywordonly_args(struct compiling *c, const node *n, int start, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
602 asdl_seq *kwonlyargs, asdl_seq *kwdefaults) |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
603 { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
604 node *ch; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
605 expr_ty name; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
606 int i = start; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
607 int j = 0; /* index for kwdefaults and kwonlyargs */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
608 assert(kwonlyargs != NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
609 assert(kwdefaults != NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
610 while (i < NCH(n)) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
611 ch = CHILD(n, i); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
612 switch (TYPE(ch)) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
613 case NAME: |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
614 if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
615 expr_ty expression = ast_for_expr(c, CHILD(n, i + 2)); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
616 if (!expression) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
617 ast_error(ch, "assignment to None"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
618 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
619 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
620 asdl_seq_SET(kwdefaults, j, expression); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
621 i += 2; /* '=' and test */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
622 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
623 else { /* setting NULL if no default value exists */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
624 asdl_seq_SET(kwdefaults, j, NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
625 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
626 if (!strcmp(STR(ch), "None")) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
627 ast_error(ch, "assignment to None"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
628 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
629 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
630 name = Name(NEW_IDENTIFIER(ch), |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
631 Param, LINENO(ch), ch->n_col_offset, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
632 c->c_arena); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
633 if (!name) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
634 ast_error(ch, "expecting name"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
635 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
636 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
637 asdl_seq_SET(kwonlyargs, j++, name); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
638 i += 2; /* the name and the comma */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
639 break; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
640 case DOUBLESTAR: |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
641 return i; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
642 default: |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
643 ast_error(ch, "unexpected node"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
644 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
645 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
646 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
647 return i; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
648 error: |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
649 return -1; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
650 } |
| 35742 | 651 |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
652 /* Create AST for argument list. */ |
| 35742 | 653 |
| 654 static arguments_ty | |
| 655 ast_for_arguments(struct compiling *c, const node *n) | |
| 656 { | |
| 657 /* parameters: '(' [varargslist] ')' | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
658 varargslist: (fpdef ['=' test] ',')* |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
659 ('*' [NAME] (',' fpdef ['=' test])* [',' '**' NAME] | '**' NAME) |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
660 | fpdef ['=' test] (',' fpdef ['=' test])* [','] |
| 35742 | 661 */ |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
662 int i, j, k, nposargs = 0, nkwonlyargs = 0; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
663 int nposdefaults = 0, found_default = 0; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
664 asdl_seq *posargs, *posdefaults, *kwonlyargs, *kwdefaults; |
| 35742 | 665 identifier vararg = NULL, kwarg = NULL; |
| 666 node *ch; | |
| 667 | |
| 668 if (TYPE(n) == parameters) { | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
669 if (NCH(n) == 2) /* () as argument list */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
670 return arguments(NULL, NULL, NULL, NULL, NULL, NULL, c->c_arena); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
671 n = CHILD(n, 1); |
| 35742 | 672 } |
| 673 REQ(n, varargslist); | |
| 674 | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
675 /* first count the number of positional args & defaults */ |
| 35742 | 676 for (i = 0; i < NCH(n); i++) { |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
677 ch = CHILD(n, i); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
678 if (TYPE(ch) == STAR) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
679 if (TYPE(CHILD(n, i+1)) == NAME) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
680 /* skip NAME of vararg */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
681 /* so that following can count only keyword only args */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
682 i += 2; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
683 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
684 else { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
685 i++; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
686 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
687 break; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
688 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
689 if (TYPE(ch) == fpdef) nposargs++; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
690 if (TYPE(ch) == EQUAL) nposdefaults++; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
691 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
692 /* count the number of keyword only args & |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
693 defaults for keyword only args */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
694 for ( ; i < NCH(n); ++i) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
695 ch = CHILD(n, i); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
696 if (TYPE(ch) == DOUBLESTAR) break; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
697 if (TYPE(ch) == NAME) nkwonlyargs++; |
| 35742 | 698 } |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
699 |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
700 posargs = (nposargs ? asdl_seq_new(nposargs, c->c_arena) : NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
701 if (!posargs && nposargs) |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
702 return NULL; /* Don't need to goto error; no objects allocated */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
703 kwonlyargs = (nkwonlyargs ? |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
704 asdl_seq_new(nkwonlyargs, c->c_arena) : NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
705 if (!kwonlyargs && nkwonlyargs) |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
706 return NULL; /* Don't need to goto error; no objects allocated */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
707 posdefaults = (nposdefaults ? |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
708 asdl_seq_new(nposdefaults, c->c_arena) : NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
709 if (!posdefaults && nposdefaults) |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
710 return NULL; /* Don't need to goto error; no objects allocated */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
711 /* The length of kwonlyargs and kwdefaults are same |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
712 since we set NULL as default for keyword only argument w/o default |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
713 - we have sequence data structure, but no dictionary */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
714 kwdefaults = (nkwonlyargs ? |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
715 asdl_seq_new(nkwonlyargs, c->c_arena) : NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
716 if (!kwdefaults && nkwonlyargs) |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
717 return NULL; /* Don't need to goto error; no objects allocated */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
718 |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
719 if (nposargs + nkwonlyargs > 255) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
720 ast_error(n, "more than 255 arguments"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
721 return NULL; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
722 } |
| 35742 | 723 |
| 724 /* fpdef: NAME | '(' fplist ')' | |
| 725 fplist: fpdef (',' fpdef)* [','] | |
| 726 */ | |
| 727 i = 0; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
728 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
|
729 k = 0; /* index for args */ |
| 35742 | 730 while (i < NCH(n)) { |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
731 ch = CHILD(n, i); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
732 switch (TYPE(ch)) { |
| 35742 | 733 case fpdef: |
| 734 /* XXX Need to worry about checking if TYPE(CHILD(n, i+1)) is | |
| 735 anything other than EQUAL or a comma? */ | |
| 736 /* XXX Should NCH(n) check be made a separate check? */ | |
| 737 if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) { | |
|
39442
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
738 expr_ty expression = ast_for_expr(c, CHILD(n, i + 2)); |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
739 if (!expression) |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
740 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
741 assert(posdefaults != NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
742 asdl_seq_SET(posdefaults, j++, expression); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
743 |
| 35742 | 744 i += 2; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
745 found_default = 1; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
746 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
747 else if (found_default) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
748 ast_error(n, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
749 "non-default argument follows default argument"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
750 goto error; |
| 35742 | 751 } |
| 752 if (NCH(ch) == 3) { | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
753 ch = CHILD(ch, 1); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
754 /* def foo((x)): is not complex, special case. */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
755 if (NCH(ch) != 1) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
756 /* We have complex arguments, setup for unpacking. */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
757 asdl_seq_SET(posargs, k++, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
758 compiler_complex_args(c, ch)); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
759 } else { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
760 /* def foo((x)): setup for checking NAME below. */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
761 ch = CHILD(ch, 0); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
762 } |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
763 } |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
764 if (TYPE(CHILD(ch, 0)) == NAME) { |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
765 expr_ty name; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
766 if (!strcmp(STR(CHILD(ch, 0)), "None")) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
767 ast_error(CHILD(ch, 0), "assignment to None"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
768 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
769 } |
|
35759
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
770 name = Name(NEW_IDENTIFIER(CHILD(ch, 0)), |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
771 Param, LINENO(ch), ch->n_col_offset, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
772 c->c_arena); |
| 35742 | 773 if (!name) |
| 774 goto error; | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
775 asdl_seq_SET(posargs, k++, name); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
776 |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
777 } |
| 35742 | 778 i += 2; /* the name and the comma */ |
| 779 break; | |
| 780 case STAR: | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
781 if (i+1 >= NCH(n)) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
782 ast_error(CHILD(n, i), "no name for vararg"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
783 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
784 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
785 if (!strcmp(STR(CHILD(n, i+1)), "None")) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
786 ast_error(CHILD(n, i+1), "assignment to None"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
787 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
788 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
789 if (TYPE(CHILD(n, i+1)) == COMMA) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
790 int res = 0; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
791 i += 2; /* now follows keyword only arguments */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
792 res = handle_keywordonly_args(c, n, i, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
793 kwonlyargs, kwdefaults); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
794 if (res == -1) goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
795 i = res; /* res has new position to process */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
796 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
797 else { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
798 vararg = NEW_IDENTIFIER(CHILD(n, i+1)); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
799 i += 3; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
800 if (i < NCH(n) && TYPE(CHILD(n, i)) == NAME) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
801 int res = 0; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
802 res = handle_keywordonly_args(c, n, i, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
803 kwonlyargs, kwdefaults); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
804 if (res == -1) goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
805 i = res; /* res has new position to process */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
806 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
807 } |
| 35742 | 808 break; |
| 809 case DOUBLESTAR: | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
810 if (!strcmp(STR(CHILD(n, i+1)), "None")) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
811 ast_error(CHILD(n, i+1), "assignment to None"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
812 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
813 } |
| 35742 | 814 kwarg = NEW_IDENTIFIER(CHILD(n, i+1)); |
| 815 i += 3; | |
| 816 break; | |
| 817 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
818 PyErr_Format(PyExc_SystemError, |
| 35742 | 819 "unexpected node in varargslist: %d @ %d", |
| 820 TYPE(ch), i); | |
| 821 goto error; | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
822 } |
| 35742 | 823 } |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
824 return arguments(posargs, vararg, kwonlyargs, kwarg, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
825 posdefaults, kwdefaults, c->c_arena); |
| 35742 | 826 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
|
827 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
|
828 Py_XDECREF(kwarg); |
| 35742 | 829 return NULL; |
| 830 } | |
| 831 | |
| 832 static expr_ty | |
| 833 ast_for_dotted_name(struct compiling *c, const node *n) | |
| 834 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
835 expr_ty e; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
836 identifier id; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
837 int lineno, col_offset; |
| 35742 | 838 int i; |
| 839 | |
| 840 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
|
841 |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
842 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
843 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
|
844 |
| 35742 | 845 id = NEW_IDENTIFIER(CHILD(n, 0)); |
| 846 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
|
847 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
848 e = Name(id, Load, lineno, col_offset, c->c_arena); |
| 35742 | 849 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
|
850 return NULL; |
| 35742 | 851 |
| 852 for (i = 2; i < NCH(n); i+=2) { | |
| 853 id = NEW_IDENTIFIER(CHILD(n, i)); | |
| 854 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
|
855 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
856 e = Attribute(e, id, Load, lineno, col_offset, c->c_arena); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
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diff
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|
857 if (!e) |
|
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ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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diff
changeset
|
858 return NULL; |
| 35742 | 859 } |
| 860 | |
| 861 return e; | |
| 862 } | |
| 863 | |
| 864 static expr_ty | |
| 865 ast_for_decorator(struct compiling *c, const node *n) | |
| 866 { | |
| 867 /* decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE */ | |
| 868 expr_ty d = NULL; | |
|
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Cleanup a bit and make things more consistent.
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parents:
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diff
changeset
|
869 expr_ty name_expr; |
| 35742 | 870 |
| 871 REQ(n, decorator); | |
|
36418
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
872 REQ(CHILD(n, 0), AT); |
|
a625e8876407
Improved handling of syntax errors.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36242
diff
changeset
|
873 REQ(RCHILD(n, -1), NEWLINE); |
| 35742 | 874 |
| 875 name_expr = ast_for_dotted_name(c, CHILD(n, 1)); | |
| 876 if (!name_expr) | |
|
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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:
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diff
changeset
|
877 return NULL; |
| 35742 | 878 |
| 879 if (NCH(n) == 3) { /* No arguments */ | |
| 880 d = name_expr; | |
| 881 name_expr = NULL; | |
| 882 } | |
| 883 else if (NCH(n) == 5) { /* Call with no arguments */ | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
884 d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
885 n->n_col_offset, c->c_arena); |
| 35742 | 886 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:
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diff
changeset
|
887 return NULL; |
| 35742 | 888 name_expr = NULL; |
| 889 } | |
| 890 else { | |
| 891 d = ast_for_call(c, CHILD(n, 3), name_expr); | |
| 892 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
|
893 return NULL; |
| 35742 | 894 name_expr = NULL; |
| 895 } | |
| 896 | |
| 897 return d; | |
| 898 } | |
| 899 | |
| 900 static asdl_seq* | |
| 901 ast_for_decorators(struct compiling *c, const node *n) | |
| 902 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
903 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
|
904 expr_ty d; |
| 35742 | 905 int i; |
| 906 | |
| 907 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
|
908 decorator_seq = asdl_seq_new(NCH(n), c->c_arena); |
| 35742 | 909 if (!decorator_seq) |
| 910 return NULL; | |
| 911 | |
| 912 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
|
913 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
|
914 if (!d) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
915 return NULL; |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
916 asdl_seq_SET(decorator_seq, i, d); |
| 35742 | 917 } |
| 918 return decorator_seq; | |
| 919 } | |
| 920 | |
| 921 static stmt_ty | |
| 922 ast_for_funcdef(struct compiling *c, const node *n) | |
| 923 { | |
| 924 /* funcdef: 'def' [decorators] NAME parameters ':' suite */ | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
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diff
changeset
|
925 identifier name; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
926 arguments_ty args; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
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diff
changeset
|
927 asdl_seq *body; |
| 35742 | 928 asdl_seq *decorator_seq = NULL; |
| 929 int name_i; | |
| 930 | |
| 931 REQ(n, funcdef); | |
| 932 | |
| 933 if (NCH(n) == 6) { /* decorators are present */ | |
| 934 decorator_seq = ast_for_decorators(c, CHILD(n, 0)); | |
| 935 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
|
936 return NULL; |
| 35742 | 937 name_i = 2; |
| 938 } | |
| 939 else { | |
| 940 name_i = 1; | |
| 941 } | |
| 942 | |
| 943 name = NEW_IDENTIFIER(CHILD(n, name_i)); | |
| 944 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
|
945 return NULL; |
| 35742 | 946 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
|
947 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
|
948 return NULL; |
| 35742 | 949 } |
| 950 args = ast_for_arguments(c, CHILD(n, name_i + 1)); | |
| 951 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
|
952 return NULL; |
| 35742 | 953 body = ast_for_suite(c, CHILD(n, name_i + 3)); |
| 954 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
|
955 return NULL; |
| 35742 | 956 |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
957 return FunctionDef(name, args, body, decorator_seq, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
958 n->n_col_offset, c->c_arena); |
| 35742 | 959 } |
| 960 | |
| 961 static expr_ty | |
| 962 ast_for_lambdef(struct compiling *c, const node *n) | |
| 963 { | |
| 964 /* lambdef: 'lambda' [varargslist] ':' test */ | |
| 965 arguments_ty args; | |
| 966 expr_ty expression; | |
| 967 | |
| 968 if (NCH(n) == 3) { | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
969 args = arguments(NULL, NULL, NULL, NULL, NULL, NULL, c->c_arena); |
| 35742 | 970 if (!args) |
| 971 return NULL; | |
| 972 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
|
973 if (!expression) |
| 35742 | 974 return NULL; |
| 975 } | |
| 976 else { | |
| 977 args = ast_for_arguments(c, CHILD(n, 1)); | |
| 978 if (!args) | |
| 979 return NULL; | |
| 980 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
|
981 if (!expression) |
| 35742 | 982 return NULL; |
| 983 } | |
| 984 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
985 return Lambda(args, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 986 } |
| 987 | |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
988 static expr_ty |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
989 ast_for_ifexpr(struct compiling *c, const node *n) |
|
6165927431d6
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Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
990 { |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
991 /* 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
|
992 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
|
993 |
|
36676
67c74efad8c2
Fix old not-reading-pep-308-right artifact.
Thomas Wouters <thomas@python.org>
parents:
36670
diff
changeset
|
994 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
|
995 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
|
996 if (!body) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
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parents:
36444
diff
changeset
|
997 return NULL; |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
998 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
|
999 if (!expression) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1000 return NULL; |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1001 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
|
1002 if (!orelse) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1003 return NULL; |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1004 return IfExp(expression, body, orelse, LINENO(n), n->n_col_offset, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1005 c->c_arena); |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1006 } |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
36444
diff
changeset
|
1007 |
| 35742 | 1008 /* Count the number of 'for' loop in a list comprehension. |
| 1009 | |
| 1010 Helper for ast_for_listcomp(). | |
| 1011 */ | |
| 1012 | |
| 1013 static int | |
| 1014 count_list_fors(const node *n) | |
| 1015 { | |
| 1016 int n_fors = 0; | |
| 1017 node *ch = CHILD(n, 1); | |
| 1018 | |
| 1019 count_list_for: | |
| 1020 n_fors++; | |
| 1021 REQ(ch, list_for); | |
| 1022 if (NCH(ch) == 5) | |
| 1023 ch = CHILD(ch, 4); | |
| 1024 else | |
| 1025 return n_fors; | |
| 1026 count_list_iter: | |
| 1027 REQ(ch, list_iter); | |
| 1028 ch = CHILD(ch, 0); | |
| 1029 if (TYPE(ch) == list_for) | |
| 1030 goto count_list_for; | |
| 1031 else if (TYPE(ch) == list_if) { | |
| 1032 if (NCH(ch) == 3) { | |
| 1033 ch = CHILD(ch, 2); | |
| 1034 goto count_list_iter; | |
| 1035 } | |
| 1036 else | |
| 1037 return n_fors; | |
| 1038 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1039 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1040 /* Should never be reached */ |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1041 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
|
1042 return -1; |
| 35742 | 1043 } |
| 1044 | |
| 1045 /* Count the number of 'if' statements in a list comprehension. | |
| 1046 | |
| 1047 Helper for ast_for_listcomp(). | |
| 1048 */ | |
| 1049 | |
| 1050 static int | |
| 1051 count_list_ifs(const node *n) | |
| 1052 { | |
| 1053 int n_ifs = 0; | |
| 1054 | |
| 1055 count_list_iter: | |
| 1056 REQ(n, list_iter); | |
| 1057 if (TYPE(CHILD(n, 0)) == list_for) | |
| 1058 return n_ifs; | |
| 1059 n = CHILD(n, 0); | |
| 1060 REQ(n, list_if); | |
| 1061 n_ifs++; | |
| 1062 if (NCH(n) == 2) | |
| 1063 return n_ifs; | |
| 1064 n = CHILD(n, 2); | |
| 1065 goto count_list_iter; | |
| 1066 } | |
| 1067 | |
| 1068 static expr_ty | |
| 1069 ast_for_listcomp(struct compiling *c, const node *n) | |
| 1070 { | |
| 1071 /* listmaker: test ( list_for | (',' test)* [','] ) | |
| 1072 list_for: 'for' exprlist 'in' testlist_safe [list_iter] | |
| 1073 list_iter: list_for | list_if | |
| 1074 list_if: 'if' test [list_iter] | |
| 1075 testlist_safe: test [(',' test)+ [',']] | |
| 1076 */ | |
| 1077 expr_ty elt; | |
| 1078 asdl_seq *listcomps; | |
| 1079 int i, n_fors; | |
| 1080 node *ch; | |
| 1081 | |
| 1082 REQ(n, listmaker); | |
| 1083 assert(NCH(n) > 1); | |
| 1084 | |
| 1085 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1086 if (!elt) | |
| 1087 return NULL; | |
| 1088 | |
| 1089 n_fors = count_list_fors(n); | |
| 1090 if (n_fors == -1) | |
| 1091 return NULL; | |
| 1092 | |
|
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
|
1093 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
|
1094 if (!listcomps) |
| 35742 | 1095 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
|
1096 |
| 35742 | 1097 ch = CHILD(n, 1); |
| 1098 for (i = 0; i < n_fors; i++) { | |
| 1099 comprehension_ty lc; | |
| 1100 asdl_seq *t; | |
| 1101 expr_ty expression; | |
| 1102 | |
| 1103 REQ(ch, list_for); | |
| 1104 | |
| 1105 t = ast_for_exprlist(c, CHILD(ch, 1), 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
|
1106 if (!t) |
| 35742 | 1107 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
|
1108 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
|
1109 if (!expression) |
| 35742 | 1110 return NULL; |
| 1111 | |
|
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
|
1112 if (asdl_seq_LEN(t) == 1) |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1113 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
|
1114 c->c_arena); |
| 35742 | 1115 else |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1116 lc = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1117 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
|
1118 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
|
1119 if (!lc) |
| 35742 | 1120 return NULL; |
| 1121 | |
| 1122 if (NCH(ch) == 5) { | |
| 1123 int j, n_ifs; | |
| 1124 asdl_seq *ifs; | |
| 1125 | |
| 1126 ch = CHILD(ch, 4); | |
| 1127 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
|
1128 if (n_ifs == -1) |
| 35742 | 1129 return NULL; |
| 1130 | |
|
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
|
1131 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
|
1132 if (!ifs) |
| 35742 | 1133 return NULL; |
| 1134 | |
| 1135 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
|
1136 REQ(ch, list_iter); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1137 ch = CHILD(ch, 0); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1138 REQ(ch, list_if); |
| 35742 | 1139 |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1140 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
|
1141 if (NCH(ch) == 3) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1142 ch = CHILD(ch, 2); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1143 } |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1144 /* 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
|
1145 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
|
1146 ch = CHILD(ch, 0); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1147 lc->ifs = ifs; |
| 35742 | 1148 } |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1149 asdl_seq_SET(listcomps, i, lc); |
| 35742 | 1150 } |
| 1151 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1152 return ListComp(elt, listcomps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1153 } |
| 1154 | |
| 1155 /* | |
| 1156 Count the number of 'for' loops in a generator expression. | |
| 1157 | |
| 1158 Helper for ast_for_genexp(). | |
| 1159 */ | |
| 1160 | |
| 1161 static int | |
| 1162 count_gen_fors(const node *n) | |
| 1163 { | |
| 1164 int n_fors = 0; | |
| 1165 node *ch = CHILD(n, 1); | |
| 1166 | |
| 1167 count_gen_for: | |
| 1168 n_fors++; | |
| 1169 REQ(ch, gen_for); | |
| 1170 if (NCH(ch) == 5) | |
| 1171 ch = CHILD(ch, 4); | |
| 1172 else | |
| 1173 return n_fors; | |
| 1174 count_gen_iter: | |
| 1175 REQ(ch, gen_iter); | |
| 1176 ch = CHILD(ch, 0); | |
| 1177 if (TYPE(ch) == gen_for) | |
| 1178 goto count_gen_for; | |
| 1179 else if (TYPE(ch) == gen_if) { | |
| 1180 if (NCH(ch) == 3) { | |
| 1181 ch = CHILD(ch, 2); | |
| 1182 goto count_gen_iter; | |
| 1183 } | |
| 1184 else | |
| 1185 return n_fors; | |
| 1186 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1187 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1188 /* Should never be reached */ |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1189 PyErr_SetString(PyExc_SystemError, |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1190 "logic error in count_gen_fors"); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1191 return -1; |
| 35742 | 1192 } |
| 1193 | |
| 1194 /* Count the number of 'if' statements in a generator expression. | |
| 1195 | |
| 1196 Helper for ast_for_genexp(). | |
| 1197 */ | |
| 1198 | |
| 1199 static int | |
| 1200 count_gen_ifs(const node *n) | |
| 1201 { | |
| 1202 int n_ifs = 0; | |
| 1203 | |
| 1204 while (1) { | |
| 1205 REQ(n, gen_iter); | |
| 1206 if (TYPE(CHILD(n, 0)) == gen_for) | |
| 1207 return n_ifs; | |
| 1208 n = CHILD(n, 0); | |
| 1209 REQ(n, gen_if); | |
| 1210 n_ifs++; | |
| 1211 if (NCH(n) == 2) | |
| 1212 return n_ifs; | |
| 1213 n = CHILD(n, 2); | |
| 1214 } | |
| 1215 } | |
| 1216 | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1217 /* TODO(jhylton): Combine with list comprehension code? */ |
| 35742 | 1218 static expr_ty |
| 1219 ast_for_genexp(struct compiling *c, const node *n) | |
| 1220 { | |
| 1221 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) | |
| 1222 argument: [test '='] test [gen_for] # Really [keyword '='] test */ | |
| 1223 expr_ty elt; | |
| 1224 asdl_seq *genexps; | |
| 1225 int i, n_fors; | |
| 1226 node *ch; | |
| 1227 | |
| 1228 assert(TYPE(n) == (testlist_gexp) || TYPE(n) == (argument)); | |
| 1229 assert(NCH(n) > 1); | |
| 1230 | |
| 1231 elt = ast_for_expr(c, CHILD(n, 0)); | |
| 1232 if (!elt) | |
| 1233 return NULL; | |
| 1234 | |
| 1235 n_fors = count_gen_fors(n); | |
| 1236 if (n_fors == -1) | |
| 1237 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
|
1238 |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1239 genexps = asdl_seq_new(n_fors, c->c_arena); |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1240 if (!genexps) |
| 35742 | 1241 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
|
1242 |
| 35742 | 1243 ch = CHILD(n, 1); |
| 1244 for (i = 0; i < n_fors; i++) { | |
| 1245 comprehension_ty ge; | |
| 1246 asdl_seq *t; | |
| 1247 expr_ty expression; | |
| 1248 | |
| 1249 REQ(ch, gen_for); | |
| 1250 | |
| 1251 t = ast_for_exprlist(c, CHILD(ch, 1), 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
|
1252 if (!t) |
| 35742 | 1253 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
|
1254 expression = ast_for_expr(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
|
1255 if (!expression) |
| 35742 | 1256 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
|
1257 |
|
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
|
1258 if (asdl_seq_LEN(t) == 1) |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1259 ge = comprehension((expr_ty)asdl_seq_GET(t, 0), 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
|
1260 NULL, c->c_arena); |
| 35742 | 1261 else |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1262 ge = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1263 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
|
1264 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
|
1265 |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1266 if (!ge) |
| 35742 | 1267 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
|
1268 |
| 35742 | 1269 if (NCH(ch) == 5) { |
| 1270 int j, n_ifs; | |
| 1271 asdl_seq *ifs; | |
| 1272 | |
| 1273 ch = CHILD(ch, 4); | |
| 1274 n_ifs = count_gen_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
|
1275 if (n_ifs == -1) |
| 35742 | 1276 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
|
1277 |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1278 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
|
1279 if (!ifs) |
| 35742 | 1280 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
|
1281 |
| 35742 | 1282 for (j = 0; j < n_ifs; j++) { |
| 1283 REQ(ch, gen_iter); | |
| 1284 ch = CHILD(ch, 0); | |
| 1285 REQ(ch, gen_if); | |
| 1286 | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1287 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,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1288 if (!expression) |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1289 return NULL; |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1290 asdl_seq_SET(ifs, j, expression); |
| 35742 | 1291 if (NCH(ch) == 3) |
| 1292 ch = CHILD(ch, 2); | |
| 1293 } | |
| 1294 /* on exit, must guarantee that ch is a gen_for */ | |
| 1295 if (TYPE(ch) == gen_iter) | |
| 1296 ch = CHILD(ch, 0); | |
| 1297 ge->ifs = ifs; | |
| 1298 } | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
1299 asdl_seq_SET(genexps, i, ge); |
| 35742 | 1300 } |
| 1301 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1302 return GeneratorExp(elt, genexps, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1303 } |
| 1304 | |
| 1305 static expr_ty | |
| 1306 ast_for_atom(struct compiling *c, const node *n) | |
| 1307 { | |
| 1308 /* atom: '(' [yield_expr|testlist_gexp] ')' | '[' [listmaker] ']' | |
|
39693
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1309 | '{' [dictsetmaker] '}' | NAME | NUMBER | STRING+ |
| 35742 | 1310 */ |
| 1311 node *ch = CHILD(n, 0); | |
| 1312 | |
| 1313 switch (TYPE(ch)) { | |
| 1314 case NAME: | |
| 1315 /* All names start in Load context, but may later be | |
| 1316 changed. */ | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1317 return Name(NEW_IDENTIFIER(ch), Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1318 case STRING: { |
| 1319 PyObject *str = parsestrplus(c, n); | |
| 1320 if (!str) | |
| 1321 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
|
1322 |
|
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
|
1323 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
|
1324 return Str(str, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1325 } |
| 1326 case NUMBER: { | |
| 1327 PyObject *pynum = parsenumber(STR(ch)); | |
| 1328 if (!pynum) | |
| 1329 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
|
1330 |
|
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
|
1331 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
|
1332 return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1333 } |
|
39783
7a0ad110e91e
Patch #1550786: ellipsis literal.
Georg Brandl <georg@python.org>
parents:
39782
diff
changeset
|
1334 case DOT: |
|
7a0ad110e91e
Patch #1550786: ellipsis literal.
Georg Brandl <georg@python.org>
parents:
39782
diff
changeset
|
1335 /* Ellipsis */ |
|
7a0ad110e91e
Patch #1550786: ellipsis literal.
Georg Brandl <georg@python.org>
parents:
39782
diff
changeset
|
1336 return Ellipsis(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1337 case LPAR: /* some parenthesized expressions */ |
| 1338 ch = CHILD(n, 1); | |
| 1339 | |
| 1340 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
|
1341 return Tuple(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1342 |
| 1343 if (TYPE(ch) == yield_expr) | |
| 1344 return ast_for_expr(c, ch); | |
| 1345 | |
| 1346 if ((NCH(ch) > 1) && (TYPE(CHILD(ch, 1)) == gen_for)) | |
| 1347 return ast_for_genexp(c, ch); | |
| 1348 | |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
1349 return ast_for_testlist_gexp(c, ch); |
| 35742 | 1350 case LSQB: /* list (or list comprehension) */ |
| 1351 ch = CHILD(n, 1); | |
| 1352 | |
| 1353 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
|
1354 return List(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1355 |
| 1356 REQ(ch, listmaker); | |
| 1357 if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) { | |
| 1358 asdl_seq *elts = seq_for_testlist(c, ch); | |
| 1359 if (!elts) | |
| 1360 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
|
1361 |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1362 return List(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1363 } |
| 1364 else | |
| 1365 return ast_for_listcomp(c, ch); | |
| 1366 case LBRACE: { | |
|
39693
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1367 /* dictsetmaker: test ':' test (',' test ':' test)* [','] | |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1368 * test (',' test)* [','] */ |
| 35742 | 1369 int i, size; |
| 1370 asdl_seq *keys, *values; | |
| 1371 | |
| 1372 ch = CHILD(n, 1); | |
|
39693
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1373 if (NCH(ch) == 1 || (NCH(ch) > 0 && STR(CHILD(ch, 1))[0] == ',')) { |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1374 /* it's a set */ |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1375 size = (NCH(ch) + 1) / 2; /* +1 in case no trailing comma */ |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1376 keys = asdl_seq_new(size, c->c_arena); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1377 if (!keys) |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1378 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
|
1379 |
|
39693
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1380 for (i = 0; i < NCH(ch); i += 2) { |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1381 expr_ty expression; |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1382 expression = ast_for_expr(c, CHILD(ch, i)); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1383 if (!expression) |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1384 return NULL; |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1385 asdl_seq_SET(keys, i / 2, expression); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1386 } |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1387 return Set(keys, LINENO(n), n->n_col_offset, c->c_arena); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1388 } else { |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1389 /* it's a dict */ |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1390 size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */ |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1391 keys = asdl_seq_new(size, c->c_arena); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1392 if (!keys) |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1393 return NULL; |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1394 |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1395 values = asdl_seq_new(size, c->c_arena); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1396 if (!values) |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1397 return NULL; |
|
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SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1398 |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1399 for (i = 0; i < NCH(ch); i += 4) { |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1400 expr_ty expression; |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1401 |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1402 expression = ast_for_expr(c, CHILD(ch, i)); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1403 if (!expression) |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1404 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
|
1405 |
|
39693
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1406 asdl_seq_SET(keys, i / 4, expression); |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
1407 |
|
39693
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1408 expression = ast_for_expr(c, CHILD(ch, i + 2)); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1409 if (!expression) |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1410 return NULL; |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1411 |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1412 asdl_seq_SET(values, i / 4, expression); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1413 } |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1414 return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1415 } |
| 35742 | 1416 } |
| 1417 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
1418 PyErr_Format(PyExc_SystemError, "unhandled atom %d", TYPE(ch)); |
| 35742 | 1419 return NULL; |
| 1420 } | |
| 1421 } | |
| 1422 | |
| 1423 static slice_ty | |
| 1424 ast_for_slice(struct compiling *c, const node *n) | |
| 1425 { | |
| 1426 node *ch; | |
| 1427 expr_ty lower = NULL, upper = NULL, step = NULL; | |
| 1428 | |
| 1429 REQ(n, subscript); | |
| 1430 | |
| 1431 /* | |
|
39783
7a0ad110e91e
Patch #1550786: ellipsis literal.
Georg Brandl <georg@python.org>
parents:
39782
diff
changeset
|
1432 subscript: test | [test] ':' [test] [sliceop] |
| 35742 | 1433 sliceop: ':' [test] |
| 1434 */ | |
| 1435 ch = CHILD(n, 0); | |
| 1436 if (NCH(n) == 1 && TYPE(ch) == test) { | |
| 1437 /* 'step' variable hold no significance in terms of being used over | |
| 1438 other vars */ | |
| 1439 step = ast_for_expr(c, ch); | |
| 1440 if (!step) | |
| 1441 return NULL; | |
| 1442 | |
|
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
|
1443 return Index(step, c->c_arena); |
| 35742 | 1444 } |
| 1445 | |
| 1446 if (TYPE(ch) == test) { | |
| 1447 lower = ast_for_expr(c, ch); | |
| 1448 if (!lower) | |
| 1449 return NULL; | |
| 1450 } | |
| 1451 | |
| 1452 /* If there's an upper bound it's in the second or third position. */ | |
| 1453 if (TYPE(ch) == COLON) { | |
| 1454 if (NCH(n) > 1) { | |
| 1455 node *n2 = CHILD(n, 1); | |
| 1456 | |
| 1457 if (TYPE(n2) == test) { | |
| 1458 upper = ast_for_expr(c, n2); | |
| 1459 if (!upper) | |
| 1460 return NULL; | |
| 1461 } | |
| 1462 } | |
| 1463 } else if (NCH(n) > 2) { | |
| 1464 node *n2 = CHILD(n, 2); | |
| 1465 | |
| 1466 if (TYPE(n2) == test) { | |
| 1467 upper = ast_for_expr(c, n2); | |
| 1468 if (!upper) | |
| 1469 return NULL; | |
| 1470 } | |
| 1471 } | |
| 1472 | |
| 1473 ch = CHILD(n, NCH(n) - 1); | |
| 1474 if (TYPE(ch) == sliceop) { | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1475 if (NCH(ch) == 1) { |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1476 /* No expression, so step is None */ |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1477 ch = CHILD(ch, 0); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1478 step = Name(new_identifier("None", c->c_arena), Load, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1479 LINENO(ch), ch->n_col_offset, c->c_arena); |
| 35742 | 1480 if (!step) |
| 1481 return NULL; | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1482 } else { |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1483 ch = CHILD(ch, 1); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1484 if (TYPE(ch) == test) { |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1485 step = ast_for_expr(c, ch); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1486 if (!step) |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1487 return NULL; |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1488 } |
| 35742 | 1489 } |
| 1490 } | |
| 1491 | |
|
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
|
1492 return Slice(lower, upper, step, c->c_arena); |
| 35742 | 1493 } |
| 1494 | |
| 1495 static expr_ty | |
| 1496 ast_for_binop(struct compiling *c, const node *n) | |
| 1497 { | |
| 1498 /* Must account for a sequence of expressions. | |
| 1499 How should A op B op C by represented? | |
| 1500 BinOp(BinOp(A, op, B), op, C). | |
| 1501 */ | |
| 1502 | |
| 1503 int i, nops; | |
| 1504 expr_ty expr1, expr2, result; | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1505 operator_ty newoperator; |
| 35742 | 1506 |
| 1507 expr1 = ast_for_expr(c, CHILD(n, 0)); | |
| 1508 if (!expr1) | |
| 1509 return NULL; | |
| 1510 | |
| 1511 expr2 = ast_for_expr(c, CHILD(n, 2)); | |
| 1512 if (!expr2) | |
| 1513 return NULL; | |
| 1514 | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1515 newoperator = get_operator(CHILD(n, 1)); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1516 if (!newoperator) |
| 35742 | 1517 return NULL; |
| 1518 | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1519 result = BinOp(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1520 c->c_arena); |
| 35742 | 1521 if (!result) |
| 1522 return NULL; | |
| 1523 | |
| 1524 nops = (NCH(n) - 1) / 2; | |
| 1525 for (i = 1; i < nops; i++) { | |
| 1526 expr_ty tmp_result, tmp; | |
| 1527 const node* next_oper = CHILD(n, i * 2 + 1); | |
| 1528 | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1529 newoperator = get_operator(next_oper); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1530 if (!newoperator) |
| 35742 | 1531 return NULL; |
| 1532 | |
| 1533 tmp = ast_for_expr(c, CHILD(n, i * 2 + 2)); | |
| 1534 if (!tmp) | |
| 1535 return NULL; | |
| 1536 | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1537 tmp_result = BinOp(result, newoperator, tmp, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1538 LINENO(next_oper), next_oper->n_col_offset, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1539 c->c_arena); |
| 35742 | 1540 if (!tmp) |
| 1541 return NULL; | |
| 1542 result = tmp_result; | |
| 1543 } | |
| 1544 return result; | |
| 1545 } | |
| 1546 | |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1547 static expr_ty |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1548 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
|
1549 { |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1550 /* trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1551 subscriptlist: subscript (',' subscript)* [','] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1552 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1553 */ |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1554 REQ(n, trailer); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1555 if (TYPE(CHILD(n, 0)) == LPAR) { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1556 if (NCH(n) == 2) |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1557 return Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1558 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
|
1559 else |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1560 return ast_for_call(c, CHILD(n, 1), left_expr); |
|
35799
842caa245917
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diff
changeset
|
1561 } |
|
36679
e1391910b026
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36676
diff
changeset
|
1562 else if (TYPE(CHILD(n, 0)) == DOT ) { |
|
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Simplify ast_for_trailer() in anticipation of more changes.
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36676
diff
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|
1563 return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load, |
|
36786
57322cb2ca11
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diff
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|
1564 LINENO(n), n->n_col_offset, c->c_arena); |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
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diff
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|
1565 } |
|
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diff
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|
1566 else { |
|
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diff
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|
1567 REQ(CHILD(n, 0), LSQB); |
|
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Refactor code for translating "power" nodes.
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diff
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|
1568 REQ(CHILD(n, 2), RSQB); |
|
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Refactor code for translating "power" nodes.
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diff
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|
1569 n = CHILD(n, 1); |
|
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Fix parsing of subscriptlist.
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|
1570 if (NCH(n) == 1) { |
|
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Refactor code for translating "power" nodes.
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diff
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|
1571 slice_ty slc = ast_for_slice(c, CHILD(n, 0)); |
|
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Refactor code for translating "power" nodes.
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|
1572 if (!slc) |
|
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diff
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|
1573 return NULL; |
|
37879
f731859e9b3b
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parents:
36877
diff
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|
1574 return Subscript(left_expr, slc, Load, LINENO(n), n->n_col_offset, |
|
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|
1575 c->c_arena); |
|
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|
1576 } |
|
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diff
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|
1577 else { |
|
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Fix parsing of subscriptlist.
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diff
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|
1578 /* The grammar is ambiguous here. The ambiguity is resolved |
|
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Fix parsing of subscriptlist.
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|
1579 by treating the sequence as a tuple literal if there are |
|
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Fix parsing of subscriptlist.
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|
1580 no slice features. |
|
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|
1581 */ |
|
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|
1582 int j; |
|
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|
1583 slice_ty slc; |
|
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|
1584 expr_ty e; |
|
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376792bfb57e
Fix uninitialized value. (Why are we using bools instead of ints, like we do
Thomas Wouters <thomas@python.org>
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|
1585 bool simple = true; |
|
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Fix parsing of subscriptlist.
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|
1586 asdl_seq *slices, *elts; |
|
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|
1587 slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
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|
1588 if (!slices) |
|
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|
1589 return NULL; |
|
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|
1590 for (j = 0; j < NCH(n); j += 2) { |
|
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|
1591 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>
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36001
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|
1592 if (!slc) |
|
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|
1593 return NULL; |
|
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|
1594 if (slc->kind != Index_kind) |
|
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|
1595 simple = false; |
|
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|
1596 asdl_seq_SET(slices, j / 2, slc); |
|
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|
1597 } |
|
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|
1598 if (!simple) { |
|
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|
1599 return Subscript(left_expr, ExtSlice(slices, c->c_arena), |
|
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|
1600 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1601 } |
|
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|
1602 /* extract Index values and put them in a Tuple */ |
|
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|
1603 elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena); |
|
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SF #1444030: Fix several potential defects found by Coverity.
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|
1604 if (!elts) |
|
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|
1605 return NULL; |
|
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|
1606 for (j = 0; j < asdl_seq_LEN(slices); ++j) { |
|
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|
1607 slc = (slice_ty)asdl_seq_GET(slices, j); |
|
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|
1608 assert(slc->kind == Index_kind && slc->v.Index.value); |
|
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|
1609 asdl_seq_SET(elts, j, slc->v.Index.value); |
|
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|
1610 } |
|
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|
1611 e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1612 if (!e) |
|
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|
1613 return NULL; |
|
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|
1614 return Subscript(left_expr, Index(e, c->c_arena), |
|
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|
1615 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1616 } |
|
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|
1617 } |
|
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|
1618 } |
|
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|
1619 |
|
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|
1620 static expr_ty |
|
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|
1621 ast_for_factor(struct compiling *c, const node *n) |
|
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1622 { |
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|
1623 node *pfactor, *ppower, *patom, *pnum; |
|
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|
1624 expr_ty expression; |
|
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|
1625 |
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|
1626 /* If the unary - operator is applied to a constant, don't generate |
|
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|
1627 a UNARY_NEGATIVE opcode. Just store the approriate value as a |
|
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|
1628 constant. The peephole optimizer already does something like |
|
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|
1629 this but it doesn't handle the case where the constant is |
|
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|
1630 (sys.maxint - 1). In that case, we want a PyIntObject, not a |
|
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|
1631 PyLongObject. |
|
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1632 */ |
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|
1633 if (TYPE(CHILD(n, 0)) == MINUS |
|
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|
1634 && NCH(n) == 2 |
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|
1635 && TYPE((pfactor = CHILD(n, 1))) == factor |
|
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|
1636 && NCH(pfactor) == 1 |
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|
1637 && TYPE((ppower = CHILD(pfactor, 0))) == power |
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|
1638 && NCH(ppower) == 1 |
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1639 && TYPE((patom = CHILD(ppower, 0))) == atom |
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1640 && TYPE((pnum = CHILD(patom, 0))) == NUMBER) { |
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1641 char *s = PyObject_MALLOC(strlen(STR(pnum)) + 2); |
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1642 if (s == NULL) |
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1643 return NULL; |
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|
1644 s[0] = '-'; |
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|
1645 strcpy(s + 1, STR(pnum)); |
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1646 PyObject_FREE(STR(pnum)); |
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1647 STR(pnum) = s; |
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1648 return ast_for_atom(c, patom); |
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1649 } |
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1650 |
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1651 expression = ast_for_expr(c, CHILD(n, 1)); |
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1652 if (!expression) |
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1653 return NULL; |
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1654 |
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1655 switch (TYPE(CHILD(n, 0))) { |
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1656 case PLUS: |
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1657 return UnaryOp(UAdd, expression, LINENO(n), n->n_col_offset, |
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1658 c->c_arena); |
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1659 case MINUS: |
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1660 return UnaryOp(USub, expression, LINENO(n), n->n_col_offset, |
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1661 c->c_arena); |
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1662 case TILDE: |
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1663 return UnaryOp(Invert, expression, LINENO(n), |
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1664 n->n_col_offset, c->c_arena); |
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1665 } |
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|
1666 PyErr_Format(PyExc_SystemError, "unhandled factor: %d", |
|
654c380cf8b9
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Thomas Wouters <thomas@python.org>
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changeset
|
1667 TYPE(CHILD(n, 0))); |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
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changeset
|
1668 return NULL; |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
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diff
changeset
|
1669 } |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
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changeset
|
1670 |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
1671 static expr_ty |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1672 ast_for_power(struct compiling *c, const node *n) |
|
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Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1673 { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1674 /* power: atom trailer* ('**' factor)* |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1675 */ |
|
842caa245917
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parents:
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diff
changeset
|
1676 int i; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1677 expr_ty e, tmp; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1678 REQ(n, power); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
changeset
|
1679 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
|
1680 if (!e) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1681 return NULL; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1682 if (NCH(n) == 1) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1683 return e; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1684 for (i = 1; i < NCH(n); i++) { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
changeset
|
1685 node *ch = CHILD(n, i); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
changeset
|
1686 if (TYPE(ch) != trailer) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1687 break; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1688 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:
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diff
changeset
|
1689 if (!tmp) |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1690 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1691 tmp->lineno = e->lineno; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
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diff
changeset
|
1692 tmp->col_offset = e->col_offset; |
|
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Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
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|
1693 e = tmp; |
|
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
changeset
|
1694 } |
|
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Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
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|
1695 if (TYPE(CHILD(n, NCH(n) - 1)) == factor) { |
|
842caa245917
Refactor code for translating "power" nodes.
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parents:
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diff
changeset
|
1696 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>
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diff
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|
1697 if (!f) |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
changeset
|
1698 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1699 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:
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diff
changeset
|
1700 if (!tmp) |
|
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842caa245917
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
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|
1701 return NULL; |
|
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Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
changeset
|
1702 e = tmp; |
|
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Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
changeset
|
1703 } |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1704 return e; |
|
842caa245917
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parents:
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diff
changeset
|
1705 } |
|
842caa245917
Refactor code for translating "power" nodes.
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parents:
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diff
changeset
|
1706 |
| 35742 | 1707 /* Do not name a variable 'expr'! Will cause a compile error. |
| 1708 */ | |
| 1709 | |
| 1710 static expr_ty | |
| 1711 ast_for_expr(struct compiling *c, const node *n) | |
| 1712 { | |
| 1713 /* handle the full range of simple expressions | |
|
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PEP 308 implementation, including minor refdocs and some testcases. It
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diff
changeset
|
1714 test: or_test ['if' or_test 'else' test] | lambdef |
|
6165927431d6
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Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
1715 or_test: and_test ('or' and_test)* |
| 35742 | 1716 and_test: not_test ('and' not_test)* |
| 1717 not_test: 'not' not_test | comparison | |
| 1718 comparison: expr (comp_op expr)* | |
| 1719 expr: xor_expr ('|' xor_expr)* | |
| 1720 xor_expr: and_expr ('^' and_expr)* | |
| 1721 and_expr: shift_expr ('&' shift_expr)* | |
| 1722 shift_expr: arith_expr (('<<'|'>>') arith_expr)* | |
| 1723 arith_expr: term (('+'|'-') term)* | |
| 1724 term: factor (('*'|'/'|'%'|'//') factor)* | |
| 1725 factor: ('+'|'-'|'~') factor | power | |
| 1726 power: atom trailer* ('**' factor)* | |
|
36666
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Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
1727 |
|
6165927431d6
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parents:
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diff
changeset
|
1728 As well as modified versions that exist for backward compatibility, |
|
6165927431d6
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diff
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|
1729 to explicitly allow: |
|
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PEP 308 implementation, including minor refdocs and some testcases. It
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diff
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|
1730 [ x for x in lambda: 0, lambda: 1 ] |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
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diff
changeset
|
1731 (which would be ambiguous without these extra rules) |
|
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|
1732 |
|
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PEP 308 implementation, including minor refdocs and some testcases. It
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parents:
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diff
changeset
|
1733 old_test: or_test | old_lambdef |
|
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|
1734 old_lambdef: 'lambda' [vararglist] ':' old_test |
|
6165927431d6
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diff
changeset
|
1735 |
| 35742 | 1736 */ |
| 1737 | |
| 1738 asdl_seq *seq; | |
| 1739 int i; | |
| 1740 | |
| 1741 loop: | |
| 1742 switch (TYPE(n)) { | |
| 1743 case test: | |
|
36666
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diff
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|
1744 case old_test: |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
1745 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
|
1746 TYPE(CHILD(n, 0)) == old_lambdef) |
| 35742 | 1747 return ast_for_lambdef(c, CHILD(n, 0)); |
|
36666
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
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diff
changeset
|
1748 else if (NCH(n) > 1) |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
1749 return ast_for_ifexpr(c, n); |
|
6165927431d6
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Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
1750 /* Fallthrough */ |
|
6165927431d6
PEP 308 implementation, including minor refdocs and some testcases. It
Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
1751 case or_test: |
| 35742 | 1752 case and_test: |
| 1753 if (NCH(n) == 1) { | |
| 1754 n = CHILD(n, 0); | |
| 1755 goto loop; | |
| 1756 } | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
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diff
changeset
|
1757 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 1758 if (!seq) |
| 1759 return NULL; | |
| 1760 for (i = 0; i < NCH(n); i += 2) { | |
| 1761 expr_ty e = ast_for_expr(c, CHILD(n, i)); | |
| 1762 if (!e) | |
| 1763 return NULL; | |
| 1764 asdl_seq_SET(seq, i / 2, e); | |
| 1765 } | |
| 1766 if (!strcmp(STR(CHILD(n, 1)), "and")) | |
|
37879
f731859e9b3b
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diff
changeset
|
1767 return BoolOp(And, seq, LINENO(n), n->n_col_offset, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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diff
changeset
|
1768 c->c_arena); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
1769 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>
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diff
changeset
|
1770 return BoolOp(Or, seq, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1771 case not_test: |
| 1772 if (NCH(n) == 1) { | |
| 1773 n = CHILD(n, 0); | |
| 1774 goto loop; | |
| 1775 } | |
| 1776 else { | |
| 1777 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); | |
| 1778 if (!expression) | |
| 1779 return NULL; | |
| 1780 | |
|
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f731859e9b3b
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changeset
|
1781 return UnaryOp(Not, expression, LINENO(n), n->n_col_offset, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
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changeset
|
1782 c->c_arena); |
| 35742 | 1783 } |
| 1784 case comparison: | |
| 1785 if (NCH(n) == 1) { | |
| 1786 n = CHILD(n, 0); | |
| 1787 goto loop; | |
| 1788 } | |
| 1789 else { | |
| 1790 expr_ty expression; | |
|
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diff
changeset
|
1791 asdl_int_seq *ops; |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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changeset
|
1792 asdl_seq *cmps; |
|
f731859e9b3b
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diff
changeset
|
1793 ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 1794 if (!ops) |
| 1795 return NULL; | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
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36001
diff
changeset
|
1796 cmps = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 1797 if (!cmps) { |
| 1798 return NULL; | |
| 1799 } | |
| 1800 for (i = 1; i < NCH(n); i += 2) { | |
|
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changeset
|
1801 cmpop_ty newoperator; |
| 35742 | 1802 |
|
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|
1803 newoperator = ast_for_comp_op(CHILD(n, i)); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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changeset
|
1804 if (!newoperator) { |
| 35742 | 1805 return NULL; |
|
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76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
1806 } |
| 35742 | 1807 |
| 1808 expression = ast_for_expr(c, CHILD(n, i + 1)); | |
|
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Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
1809 if (!expression) { |
| 35742 | 1810 return NULL; |
|
35873
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Fix a whole bunch of potential memory leaks (and some real ones too)
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parents:
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diff
changeset
|
1811 } |
| 35742 | 1812 |
|
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changeset
|
1813 asdl_seq_SET(ops, i / 2, newoperator); |
| 35742 | 1814 asdl_seq_SET(cmps, i / 2, expression); |
| 1815 } | |
| 1816 expression = ast_for_expr(c, CHILD(n, 0)); | |
|
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Fix a whole bunch of potential memory leaks (and some real ones too)
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parents:
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changeset
|
1817 if (!expression) { |
| 35742 | 1818 return NULL; |
|
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changeset
|
1819 } |
| 35742 | 1820 |
|
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changeset
|
1821 return Compare(expression, ops, cmps, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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changeset
|
1822 n->n_col_offset, c->c_arena); |
| 35742 | 1823 } |
| 1824 break; | |
| 1825 | |
| 1826 /* The next five cases all handle BinOps. The main body of code | |
| 1827 is the same in each case, but the switch turned inside out to | |
| 1828 reuse the code for each type of operator. | |
| 1829 */ | |
| 1830 case expr: | |
| 1831 case xor_expr: | |
| 1832 case and_expr: | |
| 1833 case shift_expr: | |
| 1834 case arith_expr: | |
| 1835 case term: | |
| 1836 if (NCH(n) == 1) { | |
| 1837 n = CHILD(n, 0); | |
| 1838 goto loop; | |
| 1839 } | |
| 1840 return ast_for_binop(c, n); | |
| 1841 case yield_expr: { | |
| 1842 expr_ty exp = NULL; | |
| 1843 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
|
1844 exp = ast_for_testlist(c, CHILD(n, 1)); |
| 35742 | 1845 if (!exp) |
| 1846 return NULL; | |
| 1847 } | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
1848 return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1849 } |
|
39442
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
1850 case factor: |
| 35742 | 1851 if (NCH(n) == 1) { |
| 1852 n = CHILD(n, 0); | |
| 1853 goto loop; | |
| 1854 } | |
|
39442
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
1855 return ast_for_factor(c, n); |
|
35799
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1856 case power: |
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1857 return ast_for_power(c, n); |
| 35742 | 1858 default: |
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1859 PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n)); |
| 35742 | 1860 return NULL; |
| 1861 } | |
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1862 /* should never get here unless if error is set */ |
| 35742 | 1863 return NULL; |
| 1864 } | |
| 1865 | |
| 1866 static expr_ty | |
| 1867 ast_for_call(struct compiling *c, const node *n, expr_ty func) | |
| 1868 { | |
| 1869 /* | |
| 1870 arglist: (argument ',')* (argument [',']| '*' test [',' '**' test] | |
| 1871 | '**' test) | |
| 1872 argument: [test '='] test [gen_for] # Really [keyword '='] test | |
| 1873 */ | |
| 1874 | |
| 1875 int i, nargs, nkeywords, ngens; | |
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1876 asdl_seq *args; |
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1877 asdl_seq *keywords; |
| 35742 | 1878 expr_ty vararg = NULL, kwarg = NULL; |
| 1879 | |
| 1880 REQ(n, arglist); | |
| 1881 | |
| 1882 nargs = 0; | |
| 1883 nkeywords = 0; | |
| 1884 ngens = 0; | |
| 1885 for (i = 0; i < NCH(n); i++) { | |
| 1886 node *ch = CHILD(n, i); | |
| 1887 if (TYPE(ch) == argument) { | |
| 1888 if (NCH(ch) == 1) | |
| 1889 nargs++; | |
| 1890 else if (TYPE(CHILD(ch, 1)) == gen_for) | |
| 1891 ngens++; | |
| 1892 else | |
| 1893 nkeywords++; | |
| 1894 } | |
| 1895 } | |
| 1896 if (ngens > 1 || (ngens && (nargs || nkeywords))) { | |
|
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1897 ast_error(n, "Generator expression must be parenthesized " |
| 35742 | 1898 "if not sole argument"); |
| 1899 return NULL; | |
| 1900 } | |
| 1901 | |
| 1902 if (nargs + nkeywords + ngens > 255) { | |
| 1903 ast_error(n, "more than 255 arguments"); | |
| 1904 return NULL; | |
| 1905 } | |
| 1906 | |
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1907 args = asdl_seq_new(nargs + ngens, c->c_arena); |
| 35742 | 1908 if (!args) |
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1909 return NULL; |
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1910 keywords = asdl_seq_new(nkeywords, c->c_arena); |
| 35742 | 1911 if (!keywords) |
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1912 return NULL; |
| 35742 | 1913 nargs = 0; |
| 1914 nkeywords = 0; | |
| 1915 for (i = 0; i < NCH(n); i++) { | |
| 1916 node *ch = CHILD(n, i); | |
| 1917 if (TYPE(ch) == argument) { | |
| 1918 expr_ty e; | |
| 1919 if (NCH(ch) == 1) { | |
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1920 if (nkeywords) { |
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1921 ast_error(CHILD(ch, 0), |
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1922 "non-keyword arg after keyword arg"); |
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1923 return NULL; |
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1924 } |
| 35742 | 1925 e = ast_for_expr(c, CHILD(ch, 0)); |
| 1926 if (!e) | |
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1927 return NULL; |
| 35742 | 1928 asdl_seq_SET(args, nargs++, e); |
| 1929 } | |
| 1930 else if (TYPE(CHILD(ch, 1)) == gen_for) { | |
| 1931 e = ast_for_genexp(c, ch); | |
| 1932 if (!e) | |
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1933 return NULL; |
| 35742 | 1934 asdl_seq_SET(args, nargs++, e); |
| 1935 } | |
| 1936 else { | |
| 1937 keyword_ty kw; | |
| 1938 identifier key; | |
| 1939 | |
| 1940 /* CHILD(ch, 0) is test, but must be an identifier? */ | |
| 1941 e = ast_for_expr(c, CHILD(ch, 0)); | |
| 1942 if (!e) | |
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1943 return NULL; |
| 35742 | 1944 /* f(lambda x: x[0] = 3) ends up getting parsed with |
| 1945 * LHS test = lambda x: x[0], and RHS test = 3. | |
| 1946 * SF bug 132313 points out that complaining about a keyword | |
| 1947 * then is very confusing. | |
| 1948 */ | |
| 1949 if (e->kind == Lambda_kind) { | |
| 1950 ast_error(CHILD(ch, 0), "lambda cannot contain assignment"); | |
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1951 return NULL; |
| 35742 | 1952 } else if (e->kind != Name_kind) { |
| 1953 ast_error(CHILD(ch, 0), "keyword can't be an expression"); | |
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1954 return NULL; |
| 35742 | 1955 } |
| 1956 key = e->v.Name.id; | |
| 1957 e = ast_for_expr(c, CHILD(ch, 2)); | |
| 1958 if (!e) | |
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1959 return NULL; |
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1960 kw = keyword(key, e, c->c_arena); |
| 35742 | 1961 if (!kw) |
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1962 return NULL; |
| 35742 | 1963 asdl_seq_SET(keywords, nkeywords++, kw); |
| 1964 } | |
| 1965 } | |
| 1966 else if (TYPE(ch) == STAR) { | |
| 1967 vararg = ast_for_expr(c, CHILD(n, i+1)); | |
| 1968 i++; | |
| 1969 } | |
| 1970 else if (TYPE(ch) == DOUBLESTAR) { | |
| 1971 kwarg = ast_for_expr(c, CHILD(n, i+1)); | |
| 1972 i++; | |
| 1973 } | |
| 1974 } | |
| 1975 | |
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1976 return Call(func, args, keywords, vararg, kwarg, func->lineno, func->col_offset, c->c_arena); |
| 35742 | 1977 } |
| 1978 | |
| 1979 static expr_ty | |
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1980 ast_for_testlist(struct compiling *c, const node* n) |
| 35742 | 1981 { |
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1982 /* testlist_gexp: test (',' test)* [','] */ |
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1983 /* testlist: test (',' test)* [','] */ |
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1984 /* testlist_safe: test (',' test)+ [','] */ |
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1985 /* testlist1: test (',' test)* */ |
| 35742 | 1986 assert(NCH(n) > 0); |
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1987 if (TYPE(n) == testlist_gexp) { |
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1988 if (NCH(n) > 1) |
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1989 assert(TYPE(CHILD(n, 1)) != gen_for); |
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1990 } |
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1991 else { |
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1992 assert(TYPE(n) == testlist || |
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1993 TYPE(n) == testlist_safe || |
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1994 TYPE(n) == testlist1); |
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1995 } |
| 35742 | 1996 if (NCH(n) == 1) |
| 1997 return ast_for_expr(c, CHILD(n, 0)); | |
| 1998 else { | |
| 1999 asdl_seq *tmp = seq_for_testlist(c, n); | |
| 2000 if (!tmp) | |
| 2001 return NULL; | |
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2002 return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2003 } |
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2004 } |
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2005 |
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2006 static expr_ty |
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2007 ast_for_testlist_gexp(struct compiling *c, const node* n) |
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2008 { |
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2009 /* testlist_gexp: test ( gen_for | (',' test)* [','] ) */ |
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2010 /* argument: test [ gen_for ] */ |
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2011 assert(TYPE(n) == testlist_gexp || TYPE(n) == argument); |
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2012 if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == gen_for) |
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2013 return ast_for_genexp(c, n); |
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2014 return ast_for_testlist(c, n); |
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2015 } |
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2016 |
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2017 /* like ast_for_testlist() but returns a sequence */ |
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2018 static asdl_seq* |
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2019 ast_for_class_bases(struct compiling *c, const node* n) |
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2020 { |
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2021 /* testlist: test (',' test)* [','] */ |
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2022 assert(NCH(n) > 0); |
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2023 REQ(n, testlist); |
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2024 if (NCH(n) == 1) { |
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2025 expr_ty base; |
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2026 asdl_seq *bases = asdl_seq_new(1, c->c_arena); |
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2027 if (!bases) |
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2028 return NULL; |
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2029 base = ast_for_expr(c, CHILD(n, 0)); |
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2030 if (!base) |
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2031 return NULL; |
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2032 asdl_seq_SET(bases, 0, base); |
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2033 return bases; |
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2034 } |
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2035 |
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2036 return seq_for_testlist(c, n); |
| 35742 | 2037 } |
| 2038 | |
| 2039 static stmt_ty | |
| 2040 ast_for_expr_stmt(struct compiling *c, const node *n) | |
| 2041 { | |
| 2042 REQ(n, expr_stmt); | |
| 2043 /* expr_stmt: testlist (augassign (yield_expr|testlist) | |
| 2044 | ('=' (yield_expr|testlist))*) | |
| 2045 testlist: test (',' test)* [','] | |
| 2046 augassign: '+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^=' | |
| 2047 | '<<=' | '>>=' | '**=' | '//=' | |
| 2048 test: ... here starts the operator precendence dance | |
| 2049 */ | |
| 2050 | |
| 2051 if (NCH(n) == 1) { | |
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2052 expr_ty e = ast_for_testlist(c, CHILD(n, 0)); |
| 35742 | 2053 if (!e) |
| 2054 return NULL; | |
| 2055 | |
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2056 return Expr(e, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2057 } |
| 2058 else if (TYPE(CHILD(n, 1)) == augassign) { | |
| 2059 expr_ty expr1, expr2; | |
|
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|
2060 operator_ty newoperator; |
| 35742 | 2061 node *ch = CHILD(n, 0); |
| 2062 | |
|
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|
2063 expr1 = ast_for_testlist(c, ch); |
| 35742 | 2064 if (!expr1) |
| 2065 return NULL; | |
|
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|
2066 /* TODO(nas): Remove duplicated error checks (set_context does it) */ |
|
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2067 switch (expr1->kind) { |
|
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|
2068 case GeneratorExp_kind: |
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diff
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|
2069 ast_error(ch, "augmented assignment to generator " |
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2070 "expression not possible"); |
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2071 return NULL; |
|
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2072 case Yield_kind: |
|
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|
2073 ast_error(ch, "augmented assignment to yield " |
|
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|
2074 "expression not possible"); |
|
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|
2075 return NULL; |
|
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|
2076 case Name_kind: { |
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|
2077 const char *var_name = PyString_AS_STRING(expr1->v.Name.id); |
|
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|
2078 if (var_name[0] == 'N' && !strcmp(var_name, "None")) { |
|
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|
2079 ast_error(ch, "assignment to None"); |
|
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2080 return NULL; |
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2081 } |
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2082 break; |
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2083 } |
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2084 case Attribute_kind: |
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|
2085 case Subscript_kind: |
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2086 break; |
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2087 default: |
|
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|
2088 ast_error(ch, "illegal expression for augmented " |
|
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|
2089 "assignment"); |
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|
2090 return NULL; |
| 35742 | 2091 } |
|
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|
2092 set_context(expr1, Store, ch); |
| 35742 | 2093 |
| 2094 ch = CHILD(n, 2); | |
| 2095 if (TYPE(ch) == testlist) | |
|
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parents:
35771
diff
changeset
|
2096 expr2 = ast_for_testlist(c, ch); |
| 35742 | 2097 else |
|
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|
2098 expr2 = ast_for_expr(c, ch); |
|
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Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
2099 if (!expr2) |
| 35742 | 2100 return NULL; |
| 2101 | |
|
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diff
changeset
|
2102 newoperator = ast_for_augassign(CHILD(n, 1)); |
|
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parents:
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changeset
|
2103 if (!newoperator) |
| 35742 | 2104 return NULL; |
| 2105 | |
|
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f731859e9b3b
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parents:
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diff
changeset
|
2106 return AugAssign(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2107 } |
| 2108 else { | |
| 2109 int i; | |
| 2110 asdl_seq *targets; | |
| 2111 node *value; | |
| 2112 expr_ty expression; | |
| 2113 | |
| 2114 /* a normal assignment */ | |
| 2115 REQ(CHILD(n, 1), EQUAL); | |
|
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parents:
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diff
changeset
|
2116 targets = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 2117 if (!targets) |
| 2118 return NULL; | |
| 2119 for (i = 0; i < NCH(n) - 2; i += 2) { | |
|
35759
d91ed7107fd2
ANSI-C-ify the placement of local var declarations.
Armin Rigo <arigo@tunes.org>
parents:
35748
diff
changeset
|
2120 expr_ty e; |
| 35742 | 2121 node *ch = CHILD(n, i); |
| 2122 if (TYPE(ch) == yield_expr) { | |
| 2123 ast_error(ch, "assignment to yield expression not possible"); | |
|
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diff
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|
2124 return NULL; |
| 35742 | 2125 } |
|
35798
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Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2126 e = ast_for_testlist(c, ch); |
| 35742 | 2127 |
| 2128 /* set context to assign */ | |
| 2129 if (!e) | |
|
36065
ea083efdc96c
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Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2130 return NULL; |
| 35742 | 2131 |
|
36072
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Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
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|
2132 if (!set_context(e, Store, CHILD(n, i))) |
|
36065
ea083efdc96c
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Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2133 return NULL; |
| 35742 | 2134 |
| 2135 asdl_seq_SET(targets, i / 2, e); | |
| 2136 } | |
| 2137 value = CHILD(n, NCH(n) - 1); | |
| 2138 if (TYPE(value) == testlist) | |
|
35798
857f68fba275
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2139 expression = ast_for_testlist(c, value); |
| 35742 | 2140 else |
| 2141 expression = ast_for_expr(c, value); | |
| 2142 if (!expression) | |
|
36065
ea083efdc96c
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parents:
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diff
changeset
|
2143 return NULL; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2144 return Assign(targets, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2145 } |
| 2146 } | |
| 2147 | |
| 2148 static stmt_ty | |
| 2149 ast_for_print_stmt(struct compiling *c, const node *n) | |
| 2150 { | |
| 2151 /* print_stmt: 'print' ( [ test (',' test)* [','] ] | |
| 2152 | '>>' test [ (',' test)+ [','] ] ) | |
| 2153 */ | |
| 2154 expr_ty dest = NULL, expression; | |
| 2155 asdl_seq *seq; | |
| 2156 bool nl; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2157 int i, j, start = 1; |
| 35742 | 2158 |
| 2159 REQ(n, print_stmt); | |
| 2160 if (NCH(n) >= 2 && TYPE(CHILD(n, 1)) == RIGHTSHIFT) { | |
| 2161 dest = ast_for_expr(c, CHILD(n, 2)); | |
| 2162 if (!dest) | |
| 2163 return NULL; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2164 start = 4; |
| 35742 | 2165 } |
|
36065
ea083efdc96c
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Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2166 seq = asdl_seq_new((NCH(n) + 1 - start) / 2, c->c_arena); |
| 35742 | 2167 if (!seq) |
|
36718
45e6f901902c
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Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
|
2168 return NULL; |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2169 for (i = start, j = 0; i < NCH(n); i += 2, ++j) { |
| 35742 | 2170 expression = ast_for_expr(c, CHILD(n, i)); |
|
36072
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Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2171 if (!expression) |
| 35742 | 2172 return NULL; |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2173 asdl_seq_SET(seq, j, expression); |
| 35742 | 2174 } |
| 2175 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
|
2176 return Print(dest, seq, nl, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2177 } |
| 2178 | |
| 2179 static asdl_seq * | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2180 ast_for_exprlist(struct compiling *c, const node *n, expr_context_ty context) |
| 35742 | 2181 { |
| 2182 asdl_seq *seq; | |
| 2183 int i; | |
| 2184 expr_ty e; | |
| 2185 | |
| 2186 REQ(n, exprlist); | |
| 2187 | |
|
36065
ea083efdc96c
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Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2188 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 2189 if (!seq) |
| 2190 return NULL; | |
| 2191 for (i = 0; i < NCH(n); i += 2) { | |
| 2192 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
|
2193 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
|
2194 return NULL; |
|
35875
086caccfff0e
Fix another memory leak or two (one real, one potential)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35874
diff
changeset
|
2195 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
|
2196 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
|
2197 return NULL; |
| 35742 | 2198 } |
| 2199 return seq; | |
| 2200 } | |
| 2201 | |
| 2202 static stmt_ty | |
| 2203 ast_for_del_stmt(struct compiling *c, const node *n) | |
| 2204 { | |
| 2205 asdl_seq *expr_list; | |
| 2206 | |
| 2207 /* del_stmt: 'del' exprlist */ | |
| 2208 REQ(n, del_stmt); | |
| 2209 | |
| 2210 expr_list = ast_for_exprlist(c, CHILD(n, 1), Del); | |
| 2211 if (!expr_list) | |
| 2212 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2213 return Delete(expr_list, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2214 } |
| 2215 | |
| 2216 static stmt_ty | |
| 2217 ast_for_flow_stmt(struct compiling *c, const node *n) | |
| 2218 { | |
| 2219 /* | |
| 2220 flow_stmt: break_stmt | continue_stmt | return_stmt | raise_stmt | |
| 2221 | yield_stmt | |
| 2222 break_stmt: 'break' | |
| 2223 continue_stmt: 'continue' | |
| 2224 return_stmt: 'return' [testlist] | |
| 2225 yield_stmt: yield_expr | |
| 2226 yield_expr: 'yield' testlist | |
| 2227 raise_stmt: 'raise' [test [',' test [',' test]]] | |
| 2228 */ | |
| 2229 node *ch; | |
| 2230 | |
| 2231 REQ(n, flow_stmt); | |
| 2232 ch = CHILD(n, 0); | |
| 2233 switch (TYPE(ch)) { | |
| 2234 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
|
2235 return Break(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2236 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
|
2237 return Continue(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2238 case yield_stmt: { /* will reduce to yield_expr */ |
| 2239 expr_ty exp = ast_for_expr(c, CHILD(ch, 0)); | |
| 2240 if (!exp) | |
| 2241 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2242 return Expr(exp, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2243 } |
| 2244 case return_stmt: | |
| 2245 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
|
2246 return Return(NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2247 else { |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2248 expr_ty expression = ast_for_testlist(c, CHILD(ch, 1)); |
| 35742 | 2249 if (!expression) |
| 2250 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2251 return Return(expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2252 } |
| 2253 case raise_stmt: | |
| 2254 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
|
2255 return Raise(NULL, NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2256 else if (NCH(ch) == 2) { |
| 2257 expr_ty expression = ast_for_expr(c, CHILD(ch, 1)); | |
| 2258 if (!expression) | |
| 2259 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2260 return Raise(expression, NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2261 } |
| 2262 else if (NCH(ch) == 4) { | |
| 2263 expr_ty expr1, expr2; | |
| 2264 | |
| 2265 expr1 = ast_for_expr(c, CHILD(ch, 1)); | |
| 2266 if (!expr1) | |
| 2267 return NULL; | |
| 2268 expr2 = ast_for_expr(c, CHILD(ch, 3)); | |
| 2269 if (!expr2) | |
| 2270 return NULL; | |
| 2271 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
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36780
diff
changeset
|
2272 return Raise(expr1, expr2, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2273 } |
| 2274 else if (NCH(ch) == 6) { | |
| 2275 expr_ty expr1, expr2, expr3; | |
| 2276 | |
| 2277 expr1 = ast_for_expr(c, CHILD(ch, 1)); | |
| 2278 if (!expr1) | |
| 2279 return NULL; | |
| 2280 expr2 = ast_for_expr(c, CHILD(ch, 3)); | |
| 2281 if (!expr2) | |
| 2282 return NULL; | |
| 2283 expr3 = ast_for_expr(c, CHILD(ch, 5)); | |
| 2284 if (!expr3) | |
| 2285 return NULL; | |
| 2286 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2287 return Raise(expr1, expr2, expr3, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2288 } |
| 2289 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2290 PyErr_Format(PyExc_SystemError, |
| 35742 | 2291 "unexpected flow_stmt: %d", TYPE(ch)); |
| 2292 return NULL; | |
| 2293 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2294 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2295 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
|
2296 return NULL; |
| 35742 | 2297 } |
| 2298 | |
| 2299 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
|
2300 alias_for_import_name(struct compiling *c, const node *n) |
| 35742 | 2301 { |
| 2302 /* | |
|
36742
658f8ff2a442
Make 'as' an actual keyword when with's future statement is used. Not
Thomas Wouters <thomas@python.org>
parents:
36718
diff
changeset
|
2303 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
|
2304 dotted_as_name: dotted_name ['as' NAME] |
| 35742 | 2305 dotted_name: NAME ('.' NAME)* |
| 2306 */ | |
|
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
|
2307 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
|
2308 |
| 35742 | 2309 loop: |
| 2310 switch (TYPE(n)) { | |
| 2311 case import_as_name: | |
|
39442
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2312 str = NULL; |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2313 if (NCH(n) == 3) { |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2314 if (strcmp(STR(CHILD(n, 1)), "as") != 0) { |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2315 ast_error(n, "must use 'as' in import"); |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2316 return NULL; |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2317 } |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2318 str = NEW_IDENTIFIER(CHILD(n, 2)); |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2319 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2320 return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena); |
| 35742 | 2321 case dotted_as_name: |
| 2322 if (NCH(n) == 1) { | |
| 2323 n = CHILD(n, 0); | |
| 2324 goto loop; | |
| 2325 } | |
| 2326 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
|
2327 alias_ty a = alias_for_import_name(c, CHILD(n, 0)); |
|
39610
3674f20ac781
Merge current trunk into p3yk. This includes the PyNumber_Index API change,
Thomas Wouters <thomas@python.org>
parents:
39442
diff
changeset
|
2328 if (!a) |
|
3674f20ac781
Merge current trunk into p3yk. This includes the PyNumber_Index API change,
Thomas Wouters <thomas@python.org>
parents:
39442
diff
changeset
|
2329 return NULL; |
|
39442
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2330 if (strcmp(STR(CHILD(n, 1)), "as") != 0) { |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2331 ast_error(n, "must use 'as' in import"); |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2332 return NULL; |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2333 } |
| 35742 | 2334 assert(!a->asname); |
| 2335 a->asname = NEW_IDENTIFIER(CHILD(n, 2)); | |
| 2336 return a; | |
| 2337 } | |
| 2338 break; | |
| 2339 case dotted_name: | |
| 2340 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
|
2341 return alias(NEW_IDENTIFIER(CHILD(n, 0)), NULL, c->c_arena); |
| 35742 | 2342 else { |
| 2343 /* 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
|
2344 int i; |
|
36241
557e9b6ee7e1
alias_for_import_name(): Dueling compiler warnings ;-)
Tim Peters <tim.peters@gmail.com>
parents:
36231
diff
changeset
|
2345 size_t len; |
| 35742 | 2346 char *s; |
| 2347 | |
| 2348 len = 0; | |
| 2349 for (i = 0; i < NCH(n); i += 2) | |
| 2350 /* length of string plus one for the dot */ | |
| 2351 len += strlen(STR(CHILD(n, i))) + 1; | |
| 2352 len--; /* the last name doesn't have a dot */ | |
| 2353 str = PyString_FromStringAndSize(NULL, len); | |
| 2354 if (!str) | |
| 2355 return NULL; | |
| 2356 s = PyString_AS_STRING(str); | |
| 2357 if (!s) | |
| 2358 return NULL; | |
| 2359 for (i = 0; i < NCH(n); i += 2) { | |
| 2360 char *sch = STR(CHILD(n, i)); | |
| 2361 strcpy(s, STR(CHILD(n, i))); | |
| 2362 s += strlen(sch); | |
| 2363 *s++ = '.'; | |
| 2364 } | |
| 2365 --s; | |
| 2366 *s = '\0'; | |
| 2367 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
|
2368 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
|
2369 return alias(str, NULL, c->c_arena); |
| 35742 | 2370 } |
| 2371 break; | |
| 2372 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
|
2373 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
|
2374 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
|
2375 return alias(str, NULL, c->c_arena); |
| 35742 | 2376 default: |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2377 PyErr_Format(PyExc_SystemError, |
| 35742 | 2378 "unexpected import name: %d", TYPE(n)); |
| 2379 return NULL; | |
| 2380 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2381 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2382 PyErr_SetString(PyExc_SystemError, "unhandled import name condition"); |
| 35742 | 2383 return NULL; |
| 2384 } | |
| 2385 | |
| 2386 static stmt_ty | |
| 2387 ast_for_import_stmt(struct compiling *c, const node *n) | |
| 2388 { | |
| 2389 /* | |
| 2390 import_stmt: import_name | import_from | |
| 2391 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
|
2392 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
|
2393 ('*' | '(' import_as_names ')' | import_as_names) |
| 35742 | 2394 */ |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2395 int lineno; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2396 int col_offset; |
| 35742 | 2397 int i; |
| 2398 asdl_seq *aliases; | |
| 2399 | |
| 2400 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
|
2401 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2402 col_offset = n->n_col_offset; |
| 35742 | 2403 n = CHILD(n, 0); |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2404 if (TYPE(n) == import_name) { |
| 35742 | 2405 n = CHILD(n, 1); |
|
35771
044d8e0f65f2
Add an assert.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35759
diff
changeset
|
2406 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
|
2407 aliases = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 2408 if (!aliases) |
| 2409 return NULL; | |
| 2410 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
|
2411 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
|
2412 if (!import_alias) |
| 35742 | 2413 return NULL; |
| 2414 asdl_seq_SET(aliases, i / 2, import_alias); | |
| 2415 } | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2416 return Import(aliases, lineno, col_offset, c->c_arena); |
| 35742 | 2417 } |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2418 else if (TYPE(n) == import_from) { |
| 35742 | 2419 int n_children; |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2420 int idx, ndots = 0; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2421 alias_ty mod = NULL; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2422 identifier modname; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2423 |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2424 /* 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
|
2425 optional module name */ |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2426 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
|
2427 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
|
2428 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
|
2429 idx++; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2430 break; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2431 } 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
|
2432 break; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2433 } |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2434 ndots++; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2435 } |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2436 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
|
2437 switch (TYPE(CHILD(n, idx))) { |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2438 case STAR: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2439 /* from ... import * */ |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2440 n = CHILD(n, idx); |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2441 n_children = 1; |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2442 if (ndots) { |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2443 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
|
2444 return NULL; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2445 } |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2446 break; |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2447 case LPAR: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2448 /* 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
|
2449 n = CHILD(n, idx + 1); |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2450 n_children = NCH(n); |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2451 break; |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2452 case import_as_names: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2453 /* 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
|
2454 n = CHILD(n, idx); |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2455 n_children = NCH(n); |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2456 if (n_children % 2 == 0) { |
| 35742 | 2457 ast_error(n, "trailing comma not allowed without" |
| 2458 " surrounding parentheses"); | |
| 2459 return NULL; | |
| 2460 } | |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2461 break; |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2462 default: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2463 ast_error(n, "Unexpected node-type in from-import"); |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2464 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
|
2465 } |
| 35742 | 2466 |
|
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
|
2467 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
|
2468 if (!aliases) |
| 35742 | 2469 return NULL; |
| 2470 | |
| 2471 /* 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
|
2472 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
|
2473 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
|
2474 if (!import_alias) |
| 35742 | 2475 return NULL; |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2476 asdl_seq_SET(aliases, 0, import_alias); |
| 35742 | 2477 } |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2478 else { |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2479 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
|
2480 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
|
2481 if (!import_alias) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2482 return NULL; |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2483 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
|
2484 } |
| 35742 | 2485 } |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2486 if (mod != NULL) |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2487 modname = mod->name; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2488 else |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2489 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
|
2490 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
|
2491 c->c_arena); |
| 35742 | 2492 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2493 PyErr_Format(PyExc_SystemError, |
| 35742 | 2494 "unknown import statement: starts with command '%s'", |
| 2495 STR(CHILD(n, 0))); | |
| 2496 return NULL; | |
| 2497 } | |
| 2498 | |
| 2499 static stmt_ty | |
| 2500 ast_for_global_stmt(struct compiling *c, const node *n) | |
| 2501 { | |
| 2502 /* global_stmt: 'global' NAME (',' NAME)* */ | |
| 2503 identifier name; | |
| 2504 asdl_seq *s; | |
| 2505 int i; | |
| 2506 | |
| 2507 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
|
2508 s = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 2509 if (!s) |
| 2510 return NULL; | |
| 2511 for (i = 1; i < NCH(n); i += 2) { | |
| 2512 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
|
2513 if (!name) |
| 35742 | 2514 return NULL; |
| 2515 asdl_seq_SET(s, i / 2, name); | |
| 2516 } | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2517 return Global(s, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2518 } |
| 2519 | |
| 2520 static stmt_ty | |
| 2521 ast_for_assert_stmt(struct compiling *c, const node *n) | |
| 2522 { | |
| 2523 /* assert_stmt: 'assert' test [',' test] */ | |
| 2524 REQ(n, assert_stmt); | |
| 2525 if (NCH(n) == 2) { | |
| 2526 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2527 if (!expression) | |
| 2528 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2529 return Assert(expression, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2530 } |
| 2531 else if (NCH(n) == 4) { | |
| 2532 expr_ty expr1, expr2; | |
| 2533 | |
| 2534 expr1 = ast_for_expr(c, CHILD(n, 1)); | |
| 2535 if (!expr1) | |
| 2536 return NULL; | |
| 2537 expr2 = ast_for_expr(c, CHILD(n, 3)); | |
| 2538 if (!expr2) | |
| 2539 return NULL; | |
| 2540 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2541 return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2542 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2543 PyErr_Format(PyExc_SystemError, |
| 35742 | 2544 "improper number of parts to 'assert' statement: %d", |
| 2545 NCH(n)); | |
| 2546 return NULL; | |
| 2547 } | |
| 2548 | |
| 2549 static asdl_seq * | |
| 2550 ast_for_suite(struct compiling *c, const node *n) | |
| 2551 { | |
| 2552 /* 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
|
2553 asdl_seq *seq; |
| 35742 | 2554 stmt_ty s; |
| 2555 int i, total, num, end, pos = 0; | |
| 2556 node *ch; | |
| 2557 | |
| 2558 REQ(n, suite); | |
| 2559 | |
| 2560 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
|
2561 seq = asdl_seq_new(total, c->c_arena); |
| 35742 | 2562 if (!seq) |
| 2563 return NULL; | |
| 2564 if (TYPE(CHILD(n, 0)) == simple_stmt) { | |
| 2565 n = CHILD(n, 0); | |
| 2566 /* simple_stmt always ends with a NEWLINE, | |
| 2567 and may have a trailing SEMI | |
| 2568 */ | |
| 2569 end = NCH(n) - 1; | |
| 2570 if (TYPE(CHILD(n, end - 1)) == SEMI) | |
| 2571 end--; | |
| 2572 /* loop by 2 to skip semi-colons */ | |
| 2573 for (i = 0; i < end; i += 2) { | |
| 2574 ch = CHILD(n, i); | |
| 2575 s = ast_for_stmt(c, ch); | |
| 2576 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
|
2577 return NULL; |
| 35742 | 2578 asdl_seq_SET(seq, pos++, s); |
| 2579 } | |
| 2580 } | |
| 2581 else { | |
| 2582 for (i = 2; i < (NCH(n) - 1); i++) { | |
| 2583 ch = CHILD(n, i); | |
| 2584 REQ(ch, stmt); | |
| 2585 num = num_stmts(ch); | |
| 2586 if (num == 1) { | |
| 2587 /* small_stmt or compound_stmt with only one child */ | |
| 2588 s = ast_for_stmt(c, ch); | |
| 2589 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
|
2590 return NULL; |
| 35742 | 2591 asdl_seq_SET(seq, pos++, s); |
| 2592 } | |
| 2593 else { | |
| 2594 int j; | |
| 2595 ch = CHILD(ch, 0); | |
| 2596 REQ(ch, simple_stmt); | |
| 2597 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
|
2598 /* statement terminates with a semi-colon ';' */ |
|
6321669f2f4d
SF #1377897, Bus error in ast
Neal Norwitz <nnorwitz@gmail.com>
parents:
36000
diff
changeset
|
2599 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
|
2600 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
|
2601 break; |
|
36001
6321669f2f4d
SF #1377897, Bus error in ast
Neal Norwitz <nnorwitz@gmail.com>
parents:
36000
diff
changeset
|
2602 } |
| 35742 | 2603 s = ast_for_stmt(c, CHILD(ch, j)); |
| 2604 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
|
2605 return NULL; |
| 35742 | 2606 asdl_seq_SET(seq, pos++, s); |
| 2607 } | |
| 2608 } | |
| 2609 } | |
| 2610 } | |
| 2611 assert(pos == seq->size); | |
| 2612 return seq; | |
| 2613 } | |
| 2614 | |
| 2615 static stmt_ty | |
| 2616 ast_for_if_stmt(struct compiling *c, const node *n) | |
| 2617 { | |
| 2618 /* if_stmt: 'if' test ':' suite ('elif' test ':' suite)* | |
| 2619 ['else' ':' suite] | |
| 2620 */ | |
| 2621 char *s; | |
| 2622 | |
| 2623 REQ(n, if_stmt); | |
| 2624 | |
| 2625 if (NCH(n) == 4) { | |
| 2626 expr_ty expression; | |
| 2627 asdl_seq *suite_seq; | |
| 2628 | |
| 2629 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2630 if (!expression) | |
| 2631 return NULL; | |
| 2632 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
|
2633 if (!suite_seq) |
| 35742 | 2634 return NULL; |
| 2635 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2636 return If(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2637 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2638 |
| 35742 | 2639 s = STR(CHILD(n, 4)); |
| 2640 /* s[2], the third character in the string, will be | |
| 2641 's' for el_s_e, or | |
| 2642 'i' for el_i_f | |
| 2643 */ | |
| 2644 if (s[2] == 's') { | |
| 2645 expr_ty expression; | |
| 2646 asdl_seq *seq1, *seq2; | |
| 2647 | |
| 2648 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2649 if (!expression) | |
| 2650 return NULL; | |
| 2651 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
|
2652 if (!seq1) |
| 35742 | 2653 return NULL; |
| 2654 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
|
2655 if (!seq2) |
| 35742 | 2656 return NULL; |
| 2657 | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2658 return If(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2659 } |
| 2660 else if (s[2] == 'i') { | |
| 2661 int i, n_elif, has_else = 0; | |
| 2662 asdl_seq *orelse = NULL; | |
| 2663 n_elif = NCH(n) - 4; | |
| 2664 /* must reference the child n_elif+1 since 'else' token is third, | |
| 2665 not fourth, child from the end. */ | |
| 2666 if (TYPE(CHILD(n, (n_elif + 1))) == NAME | |
| 2667 && STR(CHILD(n, (n_elif + 1)))[2] == 's') { | |
| 2668 has_else = 1; | |
| 2669 n_elif -= 3; | |
| 2670 } | |
| 2671 n_elif /= 4; | |
| 2672 | |
| 2673 if (has_else) { | |
| 2674 expr_ty expression; | |
| 2675 asdl_seq *seq1, *seq2; | |
| 2676 | |
|
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
|
2677 orelse = asdl_seq_new(1, c->c_arena); |
| 35742 | 2678 if (!orelse) |
| 2679 return NULL; | |
| 2680 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
|
2681 if (!expression) |
| 35742 | 2682 return NULL; |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2683 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
|
2684 if (!seq1) |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2685 return NULL; |
| 35742 | 2686 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
|
2687 if (!seq2) |
| 35742 | 2688 return NULL; |
| 2689 | |
| 2690 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
|
2691 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
|
2692 c->c_arena)); |
| 35742 | 2693 /* the just-created orelse handled the last elif */ |
| 2694 n_elif--; | |
| 2695 } | |
| 2696 | |
| 2697 for (i = 0; i < n_elif; i++) { | |
| 2698 int off = 5 + (n_elif - i - 1) * 4; | |
| 2699 expr_ty expression; | |
| 2700 asdl_seq *suite_seq; | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2701 asdl_seq *newobj = asdl_seq_new(1, c->c_arena); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2702 if (!newobj) |
| 35742 | 2703 return NULL; |
| 2704 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
|
2705 if (!expression) |
| 35742 | 2706 return NULL; |
| 2707 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
|
2708 if (!suite_seq) |
| 35742 | 2709 return NULL; |
| 2710 | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2711 asdl_seq_SET(newobj, 0, |
| 35742 | 2712 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
|
2713 LINENO(CHILD(n, off)), CHILD(n, off)->n_col_offset, c->c_arena)); |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2714 orelse = newobj; |
| 35742 | 2715 } |
| 2716 return If(ast_for_expr(c, CHILD(n, 1)), | |
| 2717 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
|
2718 orelse, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2719 } |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2720 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2721 PyErr_Format(PyExc_SystemError, |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2722 "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
|
2723 return NULL; |
| 35742 | 2724 } |
| 2725 | |
| 2726 static stmt_ty | |
| 2727 ast_for_while_stmt(struct compiling *c, const node *n) | |
| 2728 { | |
| 2729 /* while_stmt: 'while' test ':' suite ['else' ':' suite] */ | |
| 2730 REQ(n, while_stmt); | |
| 2731 | |
| 2732 if (NCH(n) == 4) { | |
| 2733 expr_ty expression; | |
| 2734 asdl_seq *suite_seq; | |
| 2735 | |
| 2736 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2737 if (!expression) | |
| 2738 return NULL; | |
| 2739 suite_seq = ast_for_suite(c, CHILD(n, 3)); | |
|
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|
2740 if (!suite_seq) |
| 35742 | 2741 return NULL; |
|
36786
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diff
changeset
|
2742 return While(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2743 } |
| 2744 else if (NCH(n) == 7) { | |
| 2745 expr_ty expression; | |
| 2746 asdl_seq *seq1, *seq2; | |
| 2747 | |
| 2748 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2749 if (!expression) | |
| 2750 return NULL; | |
| 2751 seq1 = ast_for_suite(c, CHILD(n, 3)); | |
|
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|
2752 if (!seq1) |
| 35742 | 2753 return NULL; |
| 2754 seq2 = ast_for_suite(c, CHILD(n, 6)); | |
|
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|
2755 if (!seq2) |
| 35742 | 2756 return NULL; |
| 2757 | |
|
36786
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Patch #1440601: Add col_offset attribute to AST nodes.
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parents:
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|
2758 return While(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2759 } |
|
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|
2760 |
|
de16a85c3b4c
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diff
changeset
|
2761 PyErr_Format(PyExc_SystemError, |
|
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Cleanup a bit and make things more consistent.
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|
2762 "wrong number of tokens for 'while' statement: %d", |
|
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diff
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|
2763 NCH(n)); |
|
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|
2764 return NULL; |
| 35742 | 2765 } |
| 2766 | |
| 2767 static stmt_ty | |
| 2768 ast_for_for_stmt(struct compiling *c, const node *n) | |
| 2769 { | |
|
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|
2770 asdl_seq *_target, *seq = NULL, *suite_seq; |
| 35742 | 2771 expr_ty expression; |
| 2772 expr_ty target; | |
|
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changeset
|
2773 const node *node_target; |
| 35742 | 2774 /* for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] */ |
| 2775 REQ(n, for_stmt); | |
| 2776 | |
| 2777 if (NCH(n) == 9) { | |
| 2778 seq = ast_for_suite(c, CHILD(n, 8)); | |
| 2779 if (!seq) | |
| 2780 return NULL; | |
| 2781 } | |
| 2782 | |
|
39442
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|
2783 node_target = CHILD(n, 1); |
|
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|
2784 _target = ast_for_exprlist(c, node_target, Store); |
|
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|
2785 if (!_target) |
| 35742 | 2786 return NULL; |
|
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|
2787 /* Check the # of children rather than the length of _target, since |
|
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|
2788 for x, in ... has 1 element in _target, but still requires a Tuple. */ |
|
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|
2789 if (NCH(node_target) == 1) |
|
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|
2790 target = (expr_ty)asdl_seq_GET(_target, 0); |
| 35742 | 2791 else |
|
36786
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diff
changeset
|
2792 target = Tuple(_target, Store, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2793 |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2794 expression = ast_for_testlist(c, CHILD(n, 3)); |
|
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changeset
|
2795 if (!expression) |
| 35742 | 2796 return NULL; |
| 2797 suite_seq = ast_for_suite(c, CHILD(n, 5)); | |
|
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|
2798 if (!suite_seq) |
| 35742 | 2799 return NULL; |
| 2800 | |
|
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|
2801 return For(target, expression, suite_seq, seq, LINENO(n), n->n_col_offset, |
|
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changeset
|
2802 c->c_arena); |
| 35742 | 2803 } |
| 2804 | |
| 2805 static excepthandler_ty | |
| 2806 ast_for_except_clause(struct compiling *c, const node *exc, node *body) | |
| 2807 { | |
| 2808 /* except_clause: 'except' [test [',' test]] */ | |
| 2809 REQ(exc, except_clause); | |
| 2810 REQ(body, suite); | |
| 2811 | |
| 2812 if (NCH(exc) == 1) { | |
| 2813 asdl_seq *suite_seq = ast_for_suite(c, body); | |
| 2814 if (!suite_seq) | |
| 2815 return NULL; | |
| 2816 | |
|
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|
2817 return excepthandler(NULL, NULL, suite_seq, LINENO(exc), |
|
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changeset
|
2818 exc->n_col_offset, c->c_arena); |
| 35742 | 2819 } |
| 2820 else if (NCH(exc) == 2) { | |
| 2821 expr_ty expression; | |
| 2822 asdl_seq *suite_seq; | |
| 2823 | |
| 2824 expression = ast_for_expr(c, CHILD(exc, 1)); | |
| 2825 if (!expression) | |
| 2826 return NULL; | |
| 2827 suite_seq = ast_for_suite(c, body); | |
|
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diff
changeset
|
2828 if (!suite_seq) |
| 35742 | 2829 return NULL; |
| 2830 | |
|
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|
2831 return excepthandler(expression, NULL, suite_seq, LINENO(exc), |
|
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changeset
|
2832 exc->n_col_offset, c->c_arena); |
| 35742 | 2833 } |
| 2834 else if (NCH(exc) == 4) { | |
| 2835 asdl_seq *suite_seq; | |
| 2836 expr_ty expression; | |
| 2837 expr_ty e = ast_for_expr(c, CHILD(exc, 3)); | |
| 2838 if (!e) | |
| 2839 return NULL; | |
|
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diff
changeset
|
2840 if (!set_context(e, Store, CHILD(exc, 3))) |
| 35742 | 2841 return NULL; |
|
36072
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|
2842 expression = ast_for_expr(c, CHILD(exc, 1)); |
|
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|
2843 if (!expression) |
|
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diff
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|
2844 return NULL; |
| 35742 | 2845 suite_seq = ast_for_suite(c, body); |
|
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changeset
|
2846 if (!suite_seq) |
| 35742 | 2847 return NULL; |
| 2848 | |
|
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changeset
|
2849 return excepthandler(expression, e, suite_seq, LINENO(exc), |
|
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parents:
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|
2850 exc->n_col_offset, c->c_arena); |
| 35742 | 2851 } |
|
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|
2852 |
|
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changeset
|
2853 PyErr_Format(PyExc_SystemError, |
|
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diff
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|
2854 "wrong number of children for 'except' clause: %d", |
|
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Cleanup a bit and make things more consistent.
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|
2855 NCH(exc)); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
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|
2856 return NULL; |
| 35742 | 2857 } |
| 2858 | |
| 2859 static stmt_ty | |
| 2860 ast_for_try_stmt(struct compiling *c, const node *n) | |
| 2861 { | |
|
36066
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parents:
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diff
changeset
|
2862 const int nch = NCH(n); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
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diff
changeset
|
2863 int n_except = (nch - 3)/3; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
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diff
changeset
|
2864 asdl_seq *body, *orelse = NULL, *finally = NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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diff
changeset
|
2865 |
| 35742 | 2866 REQ(n, try_stmt); |
| 2867 | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
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diff
changeset
|
2868 body = ast_for_suite(c, CHILD(n, 2)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2869 if (body == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2870 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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diff
changeset
|
2871 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2872 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
|
2873 if (strcmp(STR(CHILD(n, nch - 3)), "finally") == 0) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2874 if (nch >= 9 && TYPE(CHILD(n, nch - 6)) == NAME) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2875 /* we can assume it's an "else", |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2876 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
|
2877 it would otherwise have a type of except_clause */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2878 orelse = ast_for_suite(c, CHILD(n, nch - 4)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
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diff
changeset
|
2879 if (orelse == NULL) |
|
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SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
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diff
changeset
|
2880 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
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diff
changeset
|
2881 n_except--; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
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diff
changeset
|
2882 } |
|
719ba02d2e2c
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diff
changeset
|
2883 |
|
719ba02d2e2c
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diff
changeset
|
2884 finally = ast_for_suite(c, CHILD(n, nch - 1)); |
|
719ba02d2e2c
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diff
changeset
|
2885 if (finally == NULL) |
|
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diff
changeset
|
2886 return NULL; |
|
719ba02d2e2c
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changeset
|
2887 n_except--; |
|
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|
2888 } |
|
719ba02d2e2c
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|
2889 else { |
|
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changeset
|
2890 /* we can assume it's an "else", |
|
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changeset
|
2891 otherwise it would have a type of except_clause */ |
|
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changeset
|
2892 orelse = ast_for_suite(c, CHILD(n, nch - 1)); |
|
719ba02d2e2c
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|
2893 if (orelse == NULL) |
|
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|
2894 return NULL; |
|
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changeset
|
2895 n_except--; |
|
719ba02d2e2c
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diff
changeset
|
2896 } |
| 35742 | 2897 } |
|
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changeset
|
2898 else if (TYPE(CHILD(n, nch - 3)) != except_clause) { |
|
35867
f4842f42700b
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Neal Norwitz <nnorwitz@gmail.com>
parents:
35799
diff
changeset
|
2899 ast_error(n, "malformed 'try' statement"); |
| 35742 | 2900 return NULL; |
| 2901 } | |
|
36066
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|
2902 |
|
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changeset
|
2903 if (n_except > 0) { |
|
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changeset
|
2904 int i; |
|
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diff
changeset
|
2905 stmt_ty except_st; |
|
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diff
changeset
|
2906 /* process except statements to create a try ... except */ |
|
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parents:
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diff
changeset
|
2907 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
|
2908 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
|
2909 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2910 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2911 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
|
2912 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
|
2913 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
|
2914 if (!e) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2915 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2916 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
|
2917 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2918 |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2919 except_st = TryExcept(body, handlers, orelse, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2920 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
|
2921 if (!finally) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2922 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
|
2923 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2924 /* 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
|
2925 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
|
2926 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
|
2927 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
|
2928 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2929 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
|
2930 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2931 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2932 /* 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
|
2933 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
|
2934 return TryFinally(body, finally, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2935 } |
| 2936 | |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2937 static expr_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2938 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
|
2939 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2940 REQ(n, with_var); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2941 if (strcmp(STR(CHILD(n, 0)), "as") != 0) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2942 ast_error(n, "expected \"with [expr] as [var]\""); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2943 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2944 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2945 return ast_for_expr(c, CHILD(n, 1)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2946 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2947 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2948 /* with_stmt: 'with' test [ with_var ] ':' suite */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2949 static stmt_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2950 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
|
2951 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2952 expr_ty context_expr, optional_vars = NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2953 int suite_index = 3; /* skip 'with', test, and ':' */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2954 asdl_seq *suite_seq; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2955 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2956 assert(TYPE(n) == with_stmt); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2957 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
|
2958 if (TYPE(CHILD(n, 2)) == with_var) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2959 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
|
2960 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2961 if (!optional_vars) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2962 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2963 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2964 if (!set_context(optional_vars, Store, n)) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2965 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2966 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2967 suite_index = 4; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2968 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2969 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2970 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
|
2971 if (!suite_seq) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2972 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2973 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2974 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
|
2975 n->n_col_offset, c->c_arena); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2976 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2977 |
| 35742 | 2978 static stmt_ty |
| 2979 ast_for_classdef(struct compiling *c, const node *n) | |
| 2980 { | |
| 2981 /* classdef: 'class' NAME ['(' testlist ')'] ':' suite */ | |
| 2982 asdl_seq *bases, *s; | |
| 2983 | |
| 2984 REQ(n, classdef); | |
| 2985 | |
| 2986 if (!strcmp(STR(CHILD(n, 1)), "None")) { | |
| 2987 ast_error(n, "assignment to None"); | |
| 2988 return NULL; | |
| 2989 } | |
| 2990 | |
| 2991 if (NCH(n) == 4) { | |
| 2992 s = ast_for_suite(c, CHILD(n, 3)); | |
| 2993 if (!s) | |
| 2994 return NULL; | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2995 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2996 n->n_col_offset, c->c_arena); |
| 35742 | 2997 } |
| 2998 /* check for empty base list */ | |
| 2999 if (TYPE(CHILD(n,3)) == RPAR) { | |
| 3000 s = ast_for_suite(c, CHILD(n,5)); | |
| 3001 if (!s) | |
| 3002 return NULL; | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
3003 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
3004 n->n_col_offset, c->c_arena); |
| 35742 | 3005 } |
| 3006 | |
| 3007 /* 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
|
3008 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
|
3009 if (!bases) |
| 35742 | 3010 return NULL; |
| 3011 | |
| 3012 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
|
3013 if (!s) |
| 35742 | 3014 return NULL; |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
3015 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), bases, s, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
3016 n->n_col_offset, c->c_arena); |
| 35742 | 3017 } |
| 3018 | |
| 3019 static stmt_ty | |
| 3020 ast_for_stmt(struct compiling *c, const node *n) | |
| 3021 { | |
| 3022 if (TYPE(n) == stmt) { | |
| 3023 assert(NCH(n) == 1); | |
| 3024 n = CHILD(n, 0); | |
| 3025 } | |
| 3026 if (TYPE(n) == simple_stmt) { | |
| 3027 assert(num_stmts(n) == 1); | |
| 3028 n = CHILD(n, 0); | |
| 3029 } | |
| 3030 if (TYPE(n) == small_stmt) { | |
| 3031 REQ(n, small_stmt); | |
| 3032 n = CHILD(n, 0); | |
| 3033 /* small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt | |
|
39782
c94f37054f19
Patch #1550800: make exec a function.
Georg Brandl <georg@python.org>
parents:
39693
diff
changeset
|
3034 | flow_stmt | import_stmt | global_stmt | assert_stmt |
| 35742 | 3035 */ |
| 3036 switch (TYPE(n)) { | |
| 3037 case expr_stmt: | |
| 3038 return ast_for_expr_stmt(c, n); | |
| 3039 case print_stmt: | |
| 3040 return ast_for_print_stmt(c, n); | |
| 3041 case del_stmt: | |
| 3042 return ast_for_del_stmt(c, n); | |
| 3043 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
|
3044 return Pass(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3045 case flow_stmt: |
| 3046 return ast_for_flow_stmt(c, n); | |
| 3047 case import_stmt: | |
| 3048 return ast_for_import_stmt(c, n); | |
| 3049 case global_stmt: | |
| 3050 return ast_for_global_stmt(c, n); | |
| 3051 case assert_stmt: | |
| 3052 return ast_for_assert_stmt(c, n); | |
| 3053 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
3054 PyErr_Format(PyExc_SystemError, |
| 35742 | 3055 "unhandled small_stmt: TYPE=%d NCH=%d\n", |
| 3056 TYPE(n), NCH(n)); | |
| 3057 return NULL; | |
| 3058 } | |
| 3059 } | |
| 3060 else { | |
| 3061 /* compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | |
| 3062 | funcdef | classdef | |
| 3063 */ | |
| 3064 node *ch = CHILD(n, 0); | |
| 3065 REQ(n, compound_stmt); | |
| 3066 switch (TYPE(ch)) { | |
| 3067 case if_stmt: | |
| 3068 return ast_for_if_stmt(c, ch); | |
| 3069 case while_stmt: | |
| 3070 return ast_for_while_stmt(c, ch); | |
| 3071 case for_stmt: | |
| 3072 return ast_for_for_stmt(c, ch); | |
| 3073 case try_stmt: | |
| 3074 return ast_for_try_stmt(c, ch); | |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3075 case with_stmt: |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
3076 return ast_for_with_stmt(c, ch); |
| 35742 | 3077 case funcdef: |
| 3078 return ast_for_funcdef(c, ch); | |
| 3079 case classdef: | |
| 3080 return ast_for_classdef(c, ch); | |
| 3081 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
3082 PyErr_Format(PyExc_SystemError, |
| 35742 | 3083 "unhandled small_stmt: TYPE=%d NCH=%d\n", |
| 3084 TYPE(n), NCH(n)); | |
| 3085 return NULL; | |
| 3086 } | |
| 3087 } | |
| 3088 } | |
| 3089 | |
| 3090 static PyObject * | |
| 3091 parsenumber(const char *s) | |
| 3092 { | |
| 3093 const char *end; | |
| 3094 long x; | |
| 3095 double dx; | |
| 3096 #ifndef WITHOUT_COMPLEX | |
| 3097 Py_complex c; | |
| 3098 int imflag; | |
| 3099 #endif | |
| 3100 | |
| 3101 errno = 0; | |
| 3102 end = s + strlen(s) - 1; | |
| 3103 #ifndef WITHOUT_COMPLEX | |
| 3104 imflag = *end == 'j' || *end == 'J'; | |
| 3105 #endif | |
| 3106 if (*end == 'l' || *end == 'L') | |
| 3107 return PyLong_FromString((char *)s, (char **)0, 0); | |
| 3108 if (s[0] == '0') { | |
| 3109 x = (long) PyOS_strtoul((char *)s, (char **)&end, 0); | |
| 3110 if (x < 0 && errno == 0) { | |
| 3111 return PyLong_FromString((char *)s, | |
| 3112 (char **)0, | |
| 3113 0); | |
| 3114 } | |
| 3115 } | |
| 3116 else | |
| 3117 x = PyOS_strtol((char *)s, (char **)&end, 0); | |
| 3118 if (*end == '\0') { | |
| 3119 if (errno != 0) | |
| 3120 return PyLong_FromString((char *)s, (char **)0, 0); | |
| 3121 return PyInt_FromLong(x); | |
| 3122 } | |
| 3123 /* XXX Huge floats may silently fail */ | |
| 3124 #ifndef WITHOUT_COMPLEX | |
| 3125 if (imflag) { | |
| 3126 c.real = 0.; | |
| 3127 PyFPE_START_PROTECT("atof", return 0) | |
| 36155 | 3128 c.imag = PyOS_ascii_atof(s); |
| 35742 | 3129 PyFPE_END_PROTECT(c) |
| 3130 return PyComplex_FromCComplex(c); | |
| 3131 } | |
| 3132 else | |
| 3133 #endif | |
| 3134 { | |
| 3135 PyFPE_START_PROTECT("atof", return 0) | |
| 36155 | 3136 dx = PyOS_ascii_atof(s); |
| 35742 | 3137 PyFPE_END_PROTECT(dx) |
| 3138 return PyFloat_FromDouble(dx); | |
| 3139 } | |
| 3140 } | |
| 3141 | |
| 3142 static PyObject * | |
| 3143 decode_utf8(const char **sPtr, const char *end, char* encoding) | |
| 3144 { | |
| 3145 #ifndef Py_USING_UNICODE | |
| 3146 Py_FatalError("decode_utf8 should not be called in this build."); | |
| 3147 return NULL; | |
| 3148 #else | |
| 3149 PyObject *u, *v; | |
| 3150 char *s, *t; | |
| 3151 t = s = (char *)*sPtr; | |
| 3152 /* while (s < end && *s != '\\') s++; */ /* inefficient for u".." */ | |
| 3153 while (s < end && (*s & 0x80)) s++; | |
| 3154 *sPtr = s; | |
| 3155 u = PyUnicode_DecodeUTF8(t, s - t, NULL); | |
| 3156 if (u == NULL) | |
| 3157 return NULL; | |
| 3158 v = PyUnicode_AsEncodedString(u, encoding, NULL); | |
| 3159 Py_DECREF(u); | |
| 3160 return v; | |
| 3161 #endif | |
| 3162 } | |
| 3163 | |
| 3164 static PyObject * | |
| 3165 decode_unicode(const char *s, size_t len, int rawmode, const char *encoding) | |
| 3166 { | |
| 3167 PyObject *v, *u; | |
| 3168 char *buf; | |
| 3169 char *p; | |
| 3170 const char *end; | |
| 3171 if (encoding == NULL) { | |
| 3172 buf = (char *)s; | |
| 3173 u = NULL; | |
| 3174 } else if (strcmp(encoding, "iso-8859-1") == 0) { | |
| 3175 buf = (char *)s; | |
| 3176 u = NULL; | |
| 3177 } else { | |
| 3178 /* "\XX" may become "\u005c\uHHLL" (12 bytes) */ | |
| 3179 u = PyString_FromStringAndSize((char *)NULL, len * 4); | |
| 3180 if (u == NULL) | |
| 3181 return NULL; | |
| 3182 p = buf = PyString_AsString(u); | |
| 3183 end = s + len; | |
| 3184 while (s < end) { | |
| 3185 if (*s == '\\') { | |
| 3186 *p++ = *s++; | |
| 3187 if (*s & 0x80) { | |
| 3188 strcpy(p, "u005c"); | |
| 3189 p += 5; | |
| 3190 } | |
| 3191 } | |
| 3192 if (*s & 0x80) { /* XXX inefficient */ | |
| 3193 PyObject *w; | |
| 3194 char *r; | |
|
38453
29ae5e0fc348
Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
37879
diff
changeset
|
3195 Py_ssize_t rn, i; |
| 35742 | 3196 w = decode_utf8(&s, end, "utf-16-be"); |
| 3197 if (w == NULL) { | |
| 3198 Py_DECREF(u); | |
| 3199 return NULL; | |
| 3200 } | |
| 3201 r = PyString_AsString(w); | |
| 3202 rn = PyString_Size(w); | |
| 3203 assert(rn % 2 == 0); | |
| 3204 for (i = 0; i < rn; i += 2) { | |
| 3205 sprintf(p, "\\u%02x%02x", | |
| 3206 r[i + 0] & 0xFF, | |
| 3207 r[i + 1] & 0xFF); | |
| 3208 p += 6; | |
| 3209 } | |
| 3210 Py_DECREF(w); | |
| 3211 } else { | |
| 3212 *p++ = *s++; | |
| 3213 } | |
| 3214 } | |
| 3215 len = p - buf; | |
| 3216 s = buf; | |
| 3217 } | |
| 3218 if (rawmode) | |
| 3219 v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL); | |
| 3220 else | |
| 3221 v = PyUnicode_DecodeUnicodeEscape(s, len, NULL); | |
| 3222 Py_XDECREF(u); | |
| 3223 return v; | |
| 3224 } | |
| 3225 | |
| 3226 /* s is a Python string literal, including the bracketing quote characters, | |
| 3227 * and r &/or u prefixes (if any), and embedded escape sequences (if any). | |
| 3228 * parsestr parses it, and returns the decoded Python string object. | |
| 3229 */ | |
| 3230 static PyObject * | |
| 3231 parsestr(const char *s, const char *encoding) | |
| 3232 { | |
| 3233 size_t len; | |
|
36090
8cb686dd6e64
Fix SF bug #1072182, problems with signed characters.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36072
diff
changeset
|
3234 int quote = Py_CHARMASK(*s); |
| 35742 | 3235 int rawmode = 0; |
| 3236 int need_encoding; | |
| 3237 int unicode = 0; | |
| 3238 | |
| 3239 if (isalpha(quote) || quote == '_') { | |
| 3240 if (quote == 'u' || quote == 'U') { | |
| 3241 quote = *++s; | |
| 3242 unicode = 1; | |
| 3243 } | |
| 3244 if (quote == 'r' || quote == 'R') { | |
| 3245 quote = *++s; | |
| 3246 rawmode = 1; | |
| 3247 } | |
| 3248 } | |
| 3249 if (quote != '\'' && quote != '\"') { | |
| 3250 PyErr_BadInternalCall(); | |
| 3251 return NULL; | |
| 3252 } | |
| 3253 s++; | |
| 3254 len = strlen(s); | |
| 3255 if (len > INT_MAX) { | |
| 3256 PyErr_SetString(PyExc_OverflowError, | |
| 3257 "string to parse is too long"); | |
| 3258 return NULL; | |
| 3259 } | |
| 3260 if (s[--len] != quote) { | |
| 3261 PyErr_BadInternalCall(); | |
| 3262 return NULL; | |
| 3263 } | |
| 3264 if (len >= 4 && s[0] == quote && s[1] == quote) { | |
| 3265 s += 2; | |
| 3266 len -= 2; | |
| 3267 if (s[--len] != quote || s[--len] != quote) { | |
| 3268 PyErr_BadInternalCall(); | |
| 3269 return NULL; | |
| 3270 } | |
| 3271 } | |
| 3272 #ifdef Py_USING_UNICODE | |
| 3273 if (unicode || Py_UnicodeFlag) { | |
| 3274 return decode_unicode(s, len, rawmode, encoding); | |
| 3275 } | |
| 3276 #endif | |
| 3277 need_encoding = (encoding != NULL && | |
| 3278 strcmp(encoding, "utf-8") != 0 && | |
| 3279 strcmp(encoding, "iso-8859-1") != 0); | |
| 3280 if (rawmode || strchr(s, '\\') == NULL) { | |
| 3281 if (need_encoding) { | |
| 3282 #ifndef Py_USING_UNICODE | |
| 3283 /* This should not happen - we never see any other | |
| 3284 encoding. */ | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
3285 Py_FatalError( |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
3286 "cannot deal with encodings in this build."); |
| 35742 | 3287 #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
|
3288 PyObject *v, *u = PyUnicode_DecodeUTF8(s, len, NULL); |
| 35742 | 3289 if (u == NULL) |
| 3290 return NULL; | |
| 3291 v = PyUnicode_AsEncodedString(u, encoding, NULL); | |
| 3292 Py_DECREF(u); | |
| 3293 return v; | |
| 3294 #endif | |
| 3295 } else { | |
| 3296 return PyString_FromStringAndSize(s, len); | |
| 3297 } | |
| 3298 } | |
| 3299 | |
|
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
|
3300 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
|
3301 need_encoding ? encoding : NULL); |
| 35742 | 3302 } |
| 3303 | |
| 3304 /* Build a Python string object out of a STRING atom. This takes care of | |
| 3305 * compile-time literal catenation, calling parsestr() on each piece, and | |
| 3306 * pasting the intermediate results together. | |
| 3307 */ | |
| 3308 static PyObject * | |
| 3309 parsestrplus(struct compiling *c, const node *n) | |
| 3310 { | |
| 3311 PyObject *v; | |
| 3312 int i; | |
| 3313 REQ(CHILD(n, 0), STRING); | |
| 3314 if ((v = parsestr(STR(CHILD(n, 0)), c->c_encoding)) != NULL) { | |
| 3315 /* String literal concatenation */ | |
| 3316 for (i = 1; i < NCH(n); i++) { | |
| 3317 PyObject *s; | |
| 3318 s = parsestr(STR(CHILD(n, i)), c->c_encoding); | |
| 3319 if (s == NULL) | |
| 3320 goto onError; | |
| 3321 if (PyString_Check(v) && PyString_Check(s)) { | |
| 3322 PyString_ConcatAndDel(&v, s); | |
| 3323 if (v == NULL) | |
| 3324 goto onError; | |
| 3325 } | |
| 3326 #ifdef Py_USING_UNICODE | |
| 3327 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
|
3328 PyObject *temp = PyUnicode_Concat(v, s); |
| 35742 | 3329 Py_DECREF(s); |
| 3330 Py_DECREF(v); | |
| 3331 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
|
3332 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
|
3333 goto onError; |
| 35742 | 3334 } |
| 3335 #endif | |
| 3336 } | |
| 3337 } | |
| 3338 return v; | |
| 3339 | |
| 3340 onError: | |
| 3341 Py_XDECREF(v); | |
| 3342 return NULL; | |
| 3343 } |