Mercurial > cpython-lru_cache-weakref

annotate Python/symtable.c @ 80147:fbfaef0a9c00

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point errors related to nonlocals and globals to the statement declaring them (closes #10189)
author Benjamin Peterson <benjamin@python.org>
date Wed, 31 Oct 2012 20:26:20 -0400
parents 6964a9b6c1ea
children bd1db93d76e1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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a47d93ef103a Relax the rules for using 'from ... import *' and exec in the presence
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1 #include "Python.h"
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2 #include "Python-ast.h"
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3 #include "code.h"
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4 #include "symtable.h"
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5 #include "structmember.h"
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6
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7 /* error strings used for warnings */
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8 #define GLOBAL_AFTER_ASSIGN \
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9 "name '%.400s' is assigned to before global declaration"
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10
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11 #define NONLOCAL_AFTER_ASSIGN \
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12 "name '%.400s' is assigned to before nonlocal declaration"
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13
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14 #define GLOBAL_AFTER_USE \
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15 "name '%.400s' is used prior to global declaration"
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16
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17 #define NONLOCAL_AFTER_USE \
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18 "name '%.400s' is used prior to nonlocal declaration"
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19
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20 #define IMPORT_STAR_WARNING "import * only allowed at module level"
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21
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796d150e45a9 No need to export PySTEntry_New, it is only used in symtable.c
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22 static PySTEntryObject *
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23 ste_new(struct symtable *st, identifier name, _Py_block_ty block,
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24 void *key, int lineno, int col_offset)
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25 {
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26 PySTEntryObject *ste = NULL;
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27 PyObject *k = NULL;
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28
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29 k = PyLong_FromVoidPtr(key);
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30 if (k == NULL)
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31 goto fail;
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32 ste = PyObject_New(PySTEntryObject, &PySTEntry_Type);
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33 if (ste == NULL) {
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34 Py_DECREF(k);
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35 goto fail;
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36 }
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37 ste->ste_table = st;
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38 ste->ste_id = k; /* ste owns reference to k */
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39
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40 ste->ste_name = name;
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41 Py_INCREF(name);
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42
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43 ste->ste_symbols = NULL;
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44 ste->ste_varnames = NULL;
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45 ste->ste_children = NULL;
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46
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47 ste->ste_symbols = PyDict_New();
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48 if (ste->ste_symbols == NULL)
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49 goto fail;
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50
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51 ste->ste_varnames = PyList_New(0);
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52 if (ste->ste_varnames == NULL)
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53 goto fail;
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54
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55 ste->ste_children = PyList_New(0);
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56 if (ste->ste_children == NULL)
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57 goto fail;
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58
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59 ste->ste_directives = NULL;
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60
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61 ste->ste_type = block;
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62 ste->ste_unoptimized = 0;
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63 ste->ste_nested = 0;
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64 ste->ste_free = 0;
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65 ste->ste_varargs = 0;
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66 ste->ste_varkeywords = 0;
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67 ste->ste_opt_lineno = 0;
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68 ste->ste_opt_col_offset = 0;
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69 ste->ste_tmpname = 0;
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70 ste->ste_lineno = lineno;
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71 ste->ste_col_offset = col_offset;
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72
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73 if (st->st_cur != NULL &&
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74 (st->st_cur->ste_nested ||
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75 st->st_cur->ste_type == FunctionBlock))
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76 ste->ste_nested = 1;
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77 ste->ste_child_free = 0;
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78 ste->ste_generator = 0;
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79 ste->ste_returns_value = 0;
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80
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81 if (PyDict_SetItem(st->st_blocks, ste->ste_id, (PyObject *)ste) < 0)
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82 goto fail;
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83
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84 return ste;
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85 fail:
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86 Py_XDECREF(ste);
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87 return NULL;
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88 }
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89
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90 static PyObject *
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91 ste_repr(PySTEntryObject *ste)
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92 {
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93 return PyUnicode_FromFormat("<symtable entry %U(%ld), line %d>",
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94 ste->ste_name,
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95 PyLong_AS_LONG(ste->ste_id), ste->ste_lineno);
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96 }
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97
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98 static void
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99 ste_dealloc(PySTEntryObject *ste)
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100 {
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101 ste->ste_table = NULL;
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102 Py_XDECREF(ste->ste_id);
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103 Py_XDECREF(ste->ste_name);
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104 Py_XDECREF(ste->ste_symbols);
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105 Py_XDECREF(ste->ste_varnames);
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106 Py_XDECREF(ste->ste_children);
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107 Py_XDECREF(ste->ste_directives);
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108 PyObject_Del(ste);
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109 }
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110
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111 #define OFF(x) offsetof(PySTEntryObject, x)
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112
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113 static PyMemberDef ste_memberlist[] = {
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114 {"id", T_OBJECT, OFF(ste_id), READONLY},
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115 {"name", T_OBJECT, OFF(ste_name), READONLY},
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116 {"symbols", T_OBJECT, OFF(ste_symbols), READONLY},
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117 {"varnames", T_OBJECT, OFF(ste_varnames), READONLY},
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118 {"children", T_OBJECT, OFF(ste_children), READONLY},
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119 {"optimized",T_INT, OFF(ste_unoptimized), READONLY},
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120 {"nested", T_INT, OFF(ste_nested), READONLY},
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121 {"type", T_INT, OFF(ste_type), READONLY},
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122 {"lineno", T_INT, OFF(ste_lineno), READONLY},
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123 {NULL}
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125
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126 PyTypeObject PySTEntry_Type = {
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127 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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128 "symtable entry",
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129 sizeof(PySTEntryObject),
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130 0,
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131 (destructor)ste_dealloc, /* tp_dealloc */
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132 0, /* tp_print */
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133 0, /* tp_getattr */
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134 0, /* tp_setattr */
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135 0, /* tp_reserved */
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136 (reprfunc)ste_repr, /* tp_repr */
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137 0, /* tp_as_number */
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138 0, /* tp_as_sequence */
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139 0, /* tp_as_mapping */
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140 0, /* tp_hash */
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141 0, /* tp_call */
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142 0, /* tp_str */
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143 PyObject_GenericGetAttr, /* tp_getattro */
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144 0, /* tp_setattro */
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145 0, /* tp_as_buffer */
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146 Py_TPFLAGS_DEFAULT, /* tp_flags */
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147 0, /* tp_doc */
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148 0, /* tp_traverse */
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149 0, /* tp_clear */
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150 0, /* tp_richcompare */
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151 0, /* tp_weaklistoffset */
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152 0, /* tp_iter */
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153 0, /* tp_iternext */
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154 0, /* tp_methods */
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155 ste_memberlist, /* tp_members */
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156 0, /* tp_getset */
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157 0, /* tp_base */
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158 0, /* tp_dict */
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159 0, /* tp_descr_get */
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160 0, /* tp_descr_set */
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161 0, /* tp_dictoffset */
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162 0, /* tp_init */
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163 0, /* tp_alloc */
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164 0, /* tp_new */
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165 };
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166
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167 static int symtable_analyze(struct symtable *st);
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168 static int symtable_warn(struct symtable *st, char *msg, int lineno);
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169 static int symtable_enter_block(struct symtable *st, identifier name,
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170 _Py_block_ty block, void *ast, int lineno,
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171 int col_offset);
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172 static int symtable_exit_block(struct symtable *st, void *ast);
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173 static int symtable_visit_stmt(struct symtable *st, stmt_ty s);
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174 static int symtable_visit_expr(struct symtable *st, expr_ty s);
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175 static int symtable_visit_genexp(struct symtable *st, expr_ty s);
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176 static int symtable_visit_listcomp(struct symtable *st, expr_ty s);
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177 static int symtable_visit_setcomp(struct symtable *st, expr_ty s);
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178 static int symtable_visit_dictcomp(struct symtable *st, expr_ty s);
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179 static int symtable_visit_arguments(struct symtable *st, arguments_ty);
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180 static int symtable_visit_excepthandler(struct symtable *st, excepthandler_ty);
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181 static int symtable_visit_alias(struct symtable *st, alias_ty);
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182 static int symtable_visit_comprehension(struct symtable *st, comprehension_ty);
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183 static int symtable_visit_keyword(struct symtable *st, keyword_ty);
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184 static int symtable_visit_slice(struct symtable *st, slice_ty);
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185 static int symtable_visit_params(struct symtable *st, asdl_seq *args);
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186 static int symtable_visit_argannotations(struct symtable *st, asdl_seq *args);
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187 static int symtable_implicit_arg(struct symtable *st, int pos);
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188 static int symtable_visit_annotations(struct symtable *st, stmt_ty s);
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189 static int symtable_visit_withitem(struct symtable *st, withitem_ty item);
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190
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191
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192 static identifier top = NULL, lambda = NULL, genexpr = NULL,
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193 listcomp = NULL, setcomp = NULL, dictcomp = NULL,
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194 __class__ = NULL, __locals__ = NULL;
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195
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196 #define GET_IDENTIFIER(VAR) \
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197 ((VAR) ? (VAR) : ((VAR) = PyUnicode_InternFromString(# VAR)))
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198
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199 #define DUPLICATE_ARGUMENT \
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200 "duplicate argument '%U' in function definition"
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201
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202 static struct symtable *
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203 symtable_new(void)
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204 {
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205 struct symtable *st;
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206
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207 st = (struct symtable *)PyMem_Malloc(sizeof(struct symtable));
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208 if (st == NULL)
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209 return NULL;
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210
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211 st->st_filename = NULL;
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212 st->st_blocks = NULL;
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213
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214 if ((st->st_stack = PyList_New(0)) == NULL)
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215 goto fail;
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216 if ((st->st_blocks = PyDict_New()) == NULL)
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217 goto fail;
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218 st->st_cur = NULL;
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219 st->st_private = NULL;
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220 return st;
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221 fail:
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222 PySymtable_Free(st);
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223 return NULL;
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224 }
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225
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226 struct symtable *
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227 PySymtable_Build(mod_ty mod, const char *filename, PyFutureFeatures *future)
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228 {
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229 struct symtable *st = symtable_new();
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230 asdl_seq *seq;
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231 int i;
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232
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233 if (st == NULL)
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234 return st;
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235 st->st_filename = filename;
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236 st->st_future = future;
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237 /* Make the initial symbol information gathering pass */
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238 if (!GET_IDENTIFIER(top) ||
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239 !symtable_enter_block(st, top, ModuleBlock, (void *)mod, 0, 0)) {
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240 PySymtable_Free(st);
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241 return NULL;
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242 }
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243
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244 st->st_top = st->st_cur;
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245 st->st_cur->ste_unoptimized = OPT_TOPLEVEL;
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246 switch (mod->kind) {
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247 case Module_kind:
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248 seq = mod->v.Module.body;
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249 for (i = 0; i < asdl_seq_LEN(seq); i++)
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250 if (!symtable_visit_stmt(st,
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251 (stmt_ty)asdl_seq_GET(seq, i)))
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252 goto error;
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253 break;
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254 case Expression_kind:
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255 if (!symtable_visit_expr(st, mod->v.Expression.body))
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256 goto error;
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257 break;
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258 case Interactive_kind:
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259 seq = mod->v.Interactive.body;
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260 for (i = 0; i < asdl_seq_LEN(seq); i++)
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261 if (!symtable_visit_stmt(st,
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262 (stmt_ty)asdl_seq_GET(seq, i)))
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263 goto error;
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264 break;
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265 case Suite_kind:
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266 PyErr_SetString(PyExc_RuntimeError,
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267 "this compiler does not handle Suites");
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268 goto error;
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269 }
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270 if (!symtable_exit_block(st, (void *)mod)) {
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271 PySymtable_Free(st);
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272 return NULL;
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273 }
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274 /* Make the second symbol analysis pass */
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275 if (symtable_analyze(st))
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276 return st;
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277 PySymtable_Free(st);
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278 return NULL;
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279 error:
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280 (void) symtable_exit_block(st, (void *)mod);
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281 PySymtable_Free(st);
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282 return NULL;
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283 }
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284
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285 void
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286 PySymtable_Free(struct symtable *st)
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287 {
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288 Py_XDECREF(st->st_blocks);
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289 Py_XDECREF(st->st_stack);
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290 PyMem_Free((void *)st);
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291 }
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292
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293 PySTEntryObject *
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294 PySymtable_Lookup(struct symtable *st, void *key)
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295 {
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296 PyObject *k, *v;
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297
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298 k = PyLong_FromVoidPtr(key);
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299 if (k == NULL)
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300 return NULL;
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301 v = PyDict_GetItem(st->st_blocks, k);
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302 if (v) {
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303 assert(PySTEntry_Check(v));
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304 Py_INCREF(v);
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305 }
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306 else {
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307 PyErr_SetString(PyExc_KeyError,
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308 "unknown symbol table entry");
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309 }
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310
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311 Py_DECREF(k);
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312 return (PySTEntryObject *)v;
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313 }
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314
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315 int
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316 PyST_GetScope(PySTEntryObject *ste, PyObject *name)
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317 {
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318 PyObject *v = PyDict_GetItem(ste->ste_symbols, name);
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319 if (!v)
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320 return 0;
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321 assert(PyLong_Check(v));
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322 return (PyLong_AS_LONG(v) >> SCOPE_OFFSET) & SCOPE_MASK;
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323 }
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324
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325 static int
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326 error_at_directive(PySTEntryObject *ste, PyObject *name)
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327 {
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328 Py_ssize_t i;
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329 PyObject *data;
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330 assert(ste->ste_directives);
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331 for (i = 0; ; i++) {
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332 data = PyList_GET_ITEM(ste->ste_directives, i);
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333 assert(PyTuple_CheckExact(data));
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334 if (PyTuple_GET_ITEM(data, 0) == name)
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335 break;
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336 }
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337 PyErr_SyntaxLocationEx(ste->ste_table->st_filename,
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338 PyLong_AsLong(PyTuple_GET_ITEM(data, 1)),
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339 PyLong_AsLong(PyTuple_GET_ITEM(data, 2)));
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340 return 0;
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341 }
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342
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343
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344 /* Analyze raw symbol information to determine scope of each name.
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345
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346 The next several functions are helpers for symtable_analyze(),
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347 which determines whether a name is local, global, or free. In addition,
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348 it determines which local variables are cell variables; they provide
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349 bindings that are used for free variables in enclosed blocks.
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350
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351 There are also two kinds of global variables, implicit and explicit. An
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352 explicit global is declared with the global statement. An implicit
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353 global is a free variable for which the compiler has found no binding
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354 in an enclosing function scope. The implicit global is either a global
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355 or a builtin. Python's module and class blocks use the xxx_NAME opcodes
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356 to handle these names to implement slightly odd semantics. In such a
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357 block, the name is treated as global until it is assigned to; then it
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358 is treated as a local.
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359
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360 The symbol table requires two passes to determine the scope of each name.
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361 The first pass collects raw facts from the AST via the symtable_visit_*
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362 functions: the name is a parameter here, the name is used but not defined
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363 here, etc. The second pass analyzes these facts during a pass over the
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364 PySTEntryObjects created during pass 1.
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365
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366 When a function is entered during the second pass, the parent passes
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367 the set of all name bindings visible to its children. These bindings
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368 are used to determine if non-local variables are free or implicit globals.
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369 Names which are explicitly declared nonlocal must exist in this set of
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370 visible names - if they do not, a syntax error is raised. After doing
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371 the local analysis, it analyzes each of its child blocks using an
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372 updated set of name bindings.
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373
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374 The children update the free variable set. If a local variable is added to
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375 the free variable set by the child, the variable is marked as a cell. The
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376 function object being defined must provide runtime storage for the variable
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377 that may outlive the function's frame. Cell variables are removed from the
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378 free set before the analyze function returns to its parent.
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379
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380 During analysis, the names are:
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381 symbols: dict mapping from symbol names to flag values (including offset scope values)
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382 scopes: dict mapping from symbol names to scope values (no offset)
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383 local: set of all symbol names local to the current scope
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384 bound: set of all symbol names local to a containing function scope
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385 free: set of all symbol names referenced but not bound in child scopes
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386 global: set of all symbol names explicitly declared as global
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387 */
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388
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389 #define SET_SCOPE(DICT, NAME, I) { \
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390 PyObject *o = PyLong_FromLong(I); \
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391 if (!o) \
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392 return 0; \
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393 if (PyDict_SetItem((DICT), (NAME), o) < 0) { \
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394 Py_DECREF(o); \
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395 return 0; \
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396 } \
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397 Py_DECREF(o); \
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398 }
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399
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400 /* Decide on scope of name, given flags.
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401
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402 The namespace dictionaries may be modified to record information
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403 about the new name. For example, a new global will add an entry to
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404 global. A name that was global can be changed to local.
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405 */
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406
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407 static int
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408 analyze_name(PySTEntryObject *ste, PyObject *scopes, PyObject *name, long flags,
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409 PyObject *bound, PyObject *local, PyObject *free,
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410 PyObject *global)
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411 {
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412 if (flags & DEF_GLOBAL) {
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413 if (flags & DEF_PARAM) {
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414 PyErr_Format(PyExc_SyntaxError,
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415 "name '%U' is parameter and global",
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416 name);
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417 return error_at_directive(ste, name);
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418 }
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419 if (flags & DEF_NONLOCAL) {
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420 PyErr_Format(PyExc_SyntaxError,
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421 "name '%U' is nonlocal and global",
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422 name);
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423 return error_at_directive(ste, name);
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424 }
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425 SET_SCOPE(scopes, name, GLOBAL_EXPLICIT);
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426 if (PySet_Add(global, name) < 0)
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427 return 0;
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428 if (bound && (PySet_Discard(bound, name) < 0))
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429 return 0;
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430 return 1;
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431 }
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432 if (flags & DEF_NONLOCAL) {
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433 if (flags & DEF_PARAM) {
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434 PyErr_Format(PyExc_SyntaxError,
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435 "name '%U' is parameter and nonlocal",
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436 name);
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437 return error_at_directive(ste, name);
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438 }
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439 if (!bound) {
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440 PyErr_Format(PyExc_SyntaxError,
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441 "nonlocal declaration not allowed at module level");
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442 return error_at_directive(ste, name);
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443 }
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444 if (!PySet_Contains(bound, name)) {
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445 PyErr_Format(PyExc_SyntaxError,
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446 "no binding for nonlocal '%U' found",
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447 name);
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448
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449 return error_at_directive(ste, name);
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450 }
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451 SET_SCOPE(scopes, name, FREE);
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452 ste->ste_free = 1;
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453 return PySet_Add(free, name) >= 0;
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454 }
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455 if (flags & DEF_BOUND) {
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456 SET_SCOPE(scopes, name, LOCAL);
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457 if (PySet_Add(local, name) < 0)
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458 return 0;
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459 if (PySet_Discard(global, name) < 0)
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460 return 0;
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461 return 1;
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462 }
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463 /* If an enclosing block has a binding for this name, it
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464 is a free variable rather than a global variable.
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465 Note that having a non-NULL bound implies that the block
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466 is nested.
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467 */
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468 if (bound && PySet_Contains(bound, name)) {
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469 SET_SCOPE(scopes, name, FREE);
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470 ste->ste_free = 1;
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471 return PySet_Add(free, name) >= 0;
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472 }
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473 /* If a parent has a global statement, then call it global
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474 explicit? It could also be global implicit.
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475 */
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476 if (global && PySet_Contains(global, name)) {
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477 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
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478 return 1;
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479 }
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480 if (ste->ste_nested)
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481 ste->ste_free = 1;
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482 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
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483 return 1;
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484 }
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485
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486 #undef SET_SCOPE
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487
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488 /* If a name is defined in free and also in locals, then this block
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489 provides the binding for the free variable. The name should be
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490 marked CELL in this block and removed from the free list.
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491
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492 Note that the current block's free variables are included in free.
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493 That's safe because no name can be free and local in the same scope.
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494
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495 The 'restricted' argument may be set to a string to restrict the analysis
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496 to the one variable whose name equals that string (e.g. "__class__").
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497 */
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498
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499 static int
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500 analyze_cells(PyObject *scopes, PyObject *free, const char *restricted)
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501 {
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502 PyObject *name, *v, *v_cell;
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503 int success = 0;
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504 Py_ssize_t pos = 0;
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505
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506 v_cell = PyLong_FromLong(CELL);
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507 if (!v_cell)
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508 return 0;
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509 while (PyDict_Next(scopes, &pos, &name, &v)) {
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510 long scope;
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511 assert(PyLong_Check(v));
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512 scope = PyLong_AS_LONG(v);
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513 if (scope != LOCAL)
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514 continue;
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diff changeset
515 if (!PySet_Contains(free, name))
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diff changeset
516 continue;
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diff changeset
517 if (restricted != NULL &&
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diff changeset
518 PyUnicode_CompareWithASCIIString(name, restricted))
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diff changeset
519 continue;
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diff changeset
520 /* Replace LOCAL with CELL for this name, and remove
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diff changeset
521 from free. It is safe to replace the value of name
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diff changeset
522 in the dict, because it will not cause a resize.
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parents: 57378
diff changeset
523 */
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diff changeset
524 if (PyDict_SetItem(scopes, name, v_cell) < 0)
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diff changeset
525 goto error;
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parents: 57378
diff changeset
526 if (PySet_Discard(free, name) < 0)
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parents: 57378
diff changeset
527 goto error;
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diff changeset
528 }
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parents: 57378
diff changeset
529 success = 1;
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parents: 32121
diff changeset
530 error:
61467
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parents: 57378
diff changeset
531 Py_DECREF(v_cell);
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diff changeset
532 return success;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
533 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
534
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
535 /* Check for illegal statements in unoptimized namespaces */
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
536 static int
1c4d192f1568 Merge ast-branch to head
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diff changeset
537 check_unoptimized(const PySTEntryObject* ste) {
61467
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diff changeset
538 const char* trailer;
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diff changeset
539
61467
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diff changeset
540 if (ste->ste_type != FunctionBlock || !ste->ste_unoptimized
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diff changeset
541 || !(ste->ste_free || ste->ste_child_free))
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diff changeset
542 return 1;
35742
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parents: 32121
diff changeset
543
61467
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diff changeset
544 trailer = (ste->ste_child_free ?
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parents: 57378
diff changeset
545 "contains a nested function with free variables" :
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
546 "is a nested function");
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
547
61467
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diff changeset
548 switch (ste->ste_unoptimized) {
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parents: 57378
diff changeset
549 case OPT_TOPLEVEL: /* import * at top-level is fine */
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diff changeset
550 return 1;
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parents: 57378
diff changeset
551 case OPT_IMPORT_STAR:
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parents: 57378
diff changeset
552 PyErr_Format(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
553 "import * is not allowed in function '%U' because it %s",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
554 ste->ste_name, trailer);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
555 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
556 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
557
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
558 PyErr_SyntaxLocationEx(ste->ste_table->st_filename, ste->ste_opt_lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
559 ste->ste_opt_col_offset);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
560 return 0;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
561 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
562
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
563 /* Enter the final scope information into the ste_symbols dict.
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diff changeset
564 *
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
565 * All arguments are dicts. Modifies symbols, others are read-only.
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
566 */
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
567 static int
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
568 update_symbols(PyObject *symbols, PyObject *scopes,
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36739
diff changeset
569 PyObject *bound, PyObject *free, int classflag)
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
570 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
571 PyObject *name = NULL, *itr = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
572 PyObject *v = NULL, *v_scope = NULL, *v_new = NULL, *v_free = NULL;
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573 Py_ssize_t pos = 0;
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diff changeset
574
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
575 /* Update scope information for all symbols in this scope */
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diff changeset
576 while (PyDict_Next(symbols, &pos, &name, &v)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
577 long scope, flags;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
578 assert(PyLong_Check(v));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
579 flags = PyLong_AS_LONG(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
580 v_scope = PyDict_GetItem(scopes, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
581 assert(v_scope && PyLong_Check(v_scope));
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diff changeset
582 scope = PyLong_AS_LONG(v_scope);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
583 flags |= (scope << SCOPE_OFFSET);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
584 v_new = PyLong_FromLong(flags);
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diff changeset
585 if (!v_new)
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parents: 57378
diff changeset
586 return 0;
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diff changeset
587 if (PyDict_SetItem(symbols, name, v_new) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
588 Py_DECREF(v_new);
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diff changeset
589 return 0;
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diff changeset
590 }
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parents: 57378
diff changeset
591 Py_DECREF(v_new);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
592 }
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
593
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
594 /* Record not yet resolved free variables from children (if any) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
595 v_free = PyLong_FromLong(FREE << SCOPE_OFFSET);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
596 if (!v_free)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
597 return 0;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
598
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
599 itr = PyObject_GetIter(free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
600 if (!itr)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
601 goto error;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
602
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
603 while ((name = PyIter_Next(itr))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
604 v = PyDict_GetItem(symbols, name);
41464
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
605
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
606 /* Handle symbol that already exists in this scope */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
607 if (v) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
608 /* Handle a free variable in a method of
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
609 the class that has the same name as a local
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
610 or global in the class scope.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
611 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
612 if (classflag &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
613 PyLong_AS_LONG(v) & (DEF_BOUND | DEF_GLOBAL)) {
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parents: 57378
diff changeset
614 long flags = PyLong_AS_LONG(v) | DEF_FREE_CLASS;
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diff changeset
615 v_new = PyLong_FromLong(flags);
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diff changeset
616 if (!v_new) {
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parents: 57378
diff changeset
617 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
618 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
619 if (PyDict_SetItem(symbols, name, v_new) < 0) {
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parents: 57378
diff changeset
620 Py_DECREF(v_new);
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parents: 57378
diff changeset
621 goto error;
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parents: 57378
diff changeset
622 }
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parents: 57378
diff changeset
623 Py_DECREF(v_new);
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diff changeset
624 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
625 /* It's a cell, or already free in this scope */
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parents: 57378
diff changeset
626 Py_DECREF(name);
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parents: 57378
diff changeset
627 continue;
35742
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diff changeset
628 }
61467
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diff changeset
629 /* Handle global symbol */
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parents: 57378
diff changeset
630 if (!PySet_Contains(bound, name)) {
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parents: 57378
diff changeset
631 Py_DECREF(name);
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parents: 57378
diff changeset
632 continue; /* it's a global */
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diff changeset
633 }
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parents: 57378
diff changeset
634 /* Propagate new free symbol up the lexical stack */
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parents: 57378
diff changeset
635 if (PyDict_SetItem(symbols, name, v_free) < 0) {
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parents: 57378
diff changeset
636 goto error;
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parents: 57378
diff changeset
637 }
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parents: 57378
diff changeset
638 Py_DECREF(name);
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parents: 57378
diff changeset
639 }
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parents: 57378
diff changeset
640 Py_DECREF(itr);
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diff changeset
641 Py_DECREF(v_free);
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diff changeset
642 return 1;
41464
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
643 error:
61467
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diff changeset
644 Py_XDECREF(v_free);
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parents: 57378
diff changeset
645 Py_XDECREF(itr);
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parents: 57378
diff changeset
646 Py_XDECREF(name);
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diff changeset
647 return 0;
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648 }
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diff changeset
649
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parents: 32121
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650 /* Make final symbol table decisions for block of ste.
52528
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
651
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diff changeset
652 Arguments:
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parents: 32121
diff changeset
653 ste -- current symtable entry (input/output)
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
654 bound -- set of variables bound in enclosing scopes (input). bound
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
655 is NULL for module blocks.
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
656 free -- set of free variables in enclosed scopes (output)
1c4d192f1568 Merge ast-branch to head
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diff changeset
657 globals -- set of declared global variables in enclosing scopes (input)
52528
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diff changeset
658
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
659 The implementation uses two mutually recursive functions,
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
660 analyze_block() and analyze_child_block(). analyze_block() is
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
661 responsible for analyzing the individual names defined in a block.
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
662 analyze_child_block() prepares temporary namespace dictionaries
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
663 used to evaluated nested blocks.
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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diff changeset
664
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
665 The two functions exist because a child block should see the name
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
666 bindings of its enclosing blocks, but those bindings should not
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
667 propagate back to a parent block.
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
668 */
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diff changeset
669
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diff changeset
670 static int
61467
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parents: 57378
diff changeset
671 analyze_child_block(PySTEntryObject *entry, PyObject *bound, PyObject *free,
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parents: 57378
diff changeset
672 PyObject *global, PyObject* child_free);
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
673
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
674 static int
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
675 analyze_block(PySTEntryObject *ste, PyObject *bound, PyObject *free,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
676 PyObject *global)
35742
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677 {
61467
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parents: 57378
diff changeset
678 PyObject *name, *v, *local = NULL, *scopes = NULL, *newbound = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
679 PyObject *newglobal = NULL, *newfree = NULL, *allfree = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
680 PyObject *temp;
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parents: 57378
diff changeset
681 int i, success = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
682 Py_ssize_t pos = 0;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
683
61467
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
684 local = PySet_New(NULL); /* collect new names bound in block */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
685 if (!local)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
686 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
687 scopes = PyDict_New(); /* collect scopes defined for each name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
688 if (!scopes)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
689 goto error;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
690
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
691 /* Allocate new global and bound variable dictionaries. These
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
692 dictionaries hold the names visible in nested blocks. For
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
693 ClassBlocks, the bound and global names are initialized
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
694 before analyzing names, because class bindings aren't
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
695 visible in methods. For other blocks, they are initialized
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
696 after names are analyzed.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
697 */
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
698
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
699 /* TODO(jhylton): Package these dicts in a struct so that we
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
700 can write reasonable helper functions?
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
701 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
702 newglobal = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
703 if (!newglobal)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
704 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
705 newfree = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
706 if (!newfree)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
707 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
708 newbound = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
709 if (!newbound)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
710 goto error;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
711
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
712 /* Class namespace has no effect on names visible in
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
713 nested functions, so populate the global and bound
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
714 sets to be passed to child blocks before analyzing
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
715 this one.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
716 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
717 if (ste->ste_type == ClassBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
718 /* Pass down known globals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
719 temp = PyNumber_InPlaceOr(newglobal, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
720 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
721 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
722 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
723 /* Pass down previously bound symbols */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
724 if (bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
725 temp = PyNumber_InPlaceOr(newbound, bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
726 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
727 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
728 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
729 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
730 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
731
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
732 while (PyDict_Next(ste->ste_symbols, &pos, &name, &v)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
733 long flags = PyLong_AS_LONG(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
734 if (!analyze_name(ste, scopes, name, flags,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
735 bound, local, free, global))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
736 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
737 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
738
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
739 /* Populate global and bound sets to be passed to children. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
740 if (ste->ste_type != ClassBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
741 /* Add function locals to bound set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
742 if (ste->ste_type == FunctionBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
743 temp = PyNumber_InPlaceOr(newbound, local);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
744 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
745 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
746 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
747 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
748 /* Pass down previously bound symbols */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
749 if (bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
750 temp = PyNumber_InPlaceOr(newbound, bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
751 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
752 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
753 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
754 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
755 /* Pass down known globals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
756 temp = PyNumber_InPlaceOr(newglobal, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
757 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
758 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
759 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
760 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
761 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
762 /* Special-case __class__ */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
763 if (!GET_IDENTIFIER(__class__))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
764 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
765 assert(PySet_Contains(local, __class__) == 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
766 if (PySet_Add(newbound, __class__) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
767 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
768 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
769
69231
b6fe63c914e4 Issue #9904: fix and clarify some comments + fix indentation in symtable code
Eli Bendersky <eliben@gmail.com>
parents: 68257
diff changeset
770 /* Recursively call analyze_child_block() on each child block.
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
771
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
772 newbound, newglobal now contain the names visible in
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
773 nested blocks. The free variables in the children will
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
774 be collected in allfree.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
775 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
776 allfree = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
777 if (!allfree)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
778 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
779 for (i = 0; i < PyList_GET_SIZE(ste->ste_children); ++i) {
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diff changeset
780 PyObject *c = PyList_GET_ITEM(ste->ste_children, i);
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diff changeset
781 PySTEntryObject* entry;
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diff changeset
782 assert(c && PySTEntry_Check(c));
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diff changeset
783 entry = (PySTEntryObject*)c;
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parents: 57378
diff changeset
784 if (!analyze_child_block(entry, newbound, newfree, newglobal,
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diff changeset
785 allfree))
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
786 goto error;
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parents: 57378
diff changeset
787 /* Check if any children have free variables */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
788 if (entry->ste_free || entry->ste_child_free)
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parents: 57378
diff changeset
789 ste->ste_child_free = 1;
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parents: 57378
diff changeset
790 }
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diff changeset
791
61467
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diff changeset
792 temp = PyNumber_InPlaceOr(newfree, allfree);
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diff changeset
793 if (!temp)
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parents: 57378
diff changeset
794 goto error;
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diff changeset
795 Py_DECREF(temp);
52528
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parents: 51959
diff changeset
796
61467
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diff changeset
797 /* Check if any local variables must be converted to cell variables */
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parents: 57378
diff changeset
798 if (ste->ste_type == FunctionBlock && !analyze_cells(scopes, newfree,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
799 NULL))
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
800 goto error;
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parents: 57378
diff changeset
801 else if (ste->ste_type == ClassBlock && !analyze_cells(scopes, newfree,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
802 "__class__"))
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parents: 57378
diff changeset
803 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
804 /* Records the results of the analysis in the symbol table entry */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
805 if (!update_symbols(ste->ste_symbols, scopes, bound, newfree,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
806 ste->ste_type == ClassBlock))
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
807 goto error;
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parents: 57378
diff changeset
808 if (!check_unoptimized(ste))
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parents: 57378
diff changeset
809 goto error;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
810
61467
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diff changeset
811 temp = PyNumber_InPlaceOr(free, newfree);
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parents: 57378
diff changeset
812 if (!temp)
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parents: 57378
diff changeset
813 goto error;
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parents: 57378
diff changeset
814 Py_DECREF(temp);
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parents: 57378
diff changeset
815 success = 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
816 error:
61467
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diff changeset
817 Py_XDECREF(scopes);
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parents: 57378
diff changeset
818 Py_XDECREF(local);
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parents: 57378
diff changeset
819 Py_XDECREF(newbound);
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parents: 57378
diff changeset
820 Py_XDECREF(newglobal);
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parents: 57378
diff changeset
821 Py_XDECREF(newfree);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
822 Py_XDECREF(allfree);
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parents: 57378
diff changeset
823 if (!success)
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parents: 57378
diff changeset
824 assert(PyErr_Occurred());
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parents: 57378
diff changeset
825 return success;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
826 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
827
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
828 static int
61467
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diff changeset
829 analyze_child_block(PySTEntryObject *entry, PyObject *bound, PyObject *free,
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diff changeset
830 PyObject *global, PyObject* child_free)
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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diff changeset
831 {
61467
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diff changeset
832 PyObject *temp_bound = NULL, *temp_global = NULL, *temp_free = NULL;
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parents: 57378
diff changeset
833 PyObject *temp;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
834
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
835 /* Copy the bound and global dictionaries.
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
836
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
837 These dictionary are used by all blocks enclosed by the
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
838 current block. The analyze_block() call modifies these
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
839 dictionaries.
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
840
61467
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diff changeset
841 */
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parents: 57378
diff changeset
842 temp_bound = PySet_New(bound);
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parents: 57378
diff changeset
843 if (!temp_bound)
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parents: 57378
diff changeset
844 goto error;
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parents: 57378
diff changeset
845 temp_free = PySet_New(free);
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diff changeset
846 if (!temp_free)
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parents: 57378
diff changeset
847 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
848 temp_global = PySet_New(global);
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parents: 57378
diff changeset
849 if (!temp_global)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
850 goto error;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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diff changeset
851
61467
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diff changeset
852 if (!analyze_block(entry, temp_bound, temp_free, temp_global))
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parents: 57378
diff changeset
853 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
854 temp = PyNumber_InPlaceOr(child_free, temp_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
855 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
856 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
857 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
858 Py_DECREF(temp_bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
859 Py_DECREF(temp_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
860 Py_DECREF(temp_global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
861 return 1;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
862 error:
61467
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diff changeset
863 Py_XDECREF(temp_bound);
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parents: 57378
diff changeset
864 Py_XDECREF(temp_free);
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parents: 57378
diff changeset
865 Py_XDECREF(temp_global);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
866 return 0;
52528
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parents: 51959
diff changeset
867 }
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
868
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
869 static int
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
870 symtable_analyze(struct symtable *st)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
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871 {
61467
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parents: 57378
diff changeset
872 PyObject *free, *global;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
873 int r;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
874
61467
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diff changeset
875 free = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
876 if (!free)
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parents: 57378
diff changeset
877 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
878 global = PySet_New(NULL);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
879 if (!global) {
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
880 Py_DECREF(free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
881 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
882 }
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parents: 57378
diff changeset
883 r = analyze_block(st->st_top, NULL, free, global);
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parents: 57378
diff changeset
884 Py_DECREF(free);
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parents: 57378
diff changeset
885 Py_DECREF(global);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
886 return r;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
887 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
888
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
889
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
890 static int
36089
4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35939
diff changeset
891 symtable_warn(struct symtable *st, char *msg, int lineno)
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
892 {
61467
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diff changeset
893 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, st->st_filename,
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diff changeset
894 lineno, NULL, NULL) < 0) {
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parents: 57378
diff changeset
895 if (PyErr_ExceptionMatches(PyExc_SyntaxWarning)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
896 PyErr_SetString(PyExc_SyntaxError, msg);
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
897 PyErr_SyntaxLocationEx(st->st_filename, st->st_cur->ste_lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
898 st->st_cur->ste_col_offset);
61467
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parents: 57378
diff changeset
899 }
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parents: 57378
diff changeset
900 return 0;
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parents: 57378
diff changeset
901 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
902 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
903 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
904
48725
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parents: 48660
diff changeset
905 /* symtable_enter_block() gets a reference via ste_new.
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
906 This reference is released when the block is exited, via the DECREF
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
907 in symtable_exit_block().
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
908 */
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
909
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parents: 32121
diff changeset
910 static int
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parents: 32121
diff changeset
911 symtable_exit_block(struct symtable *st, void *ast)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
912 {
71087
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
913 Py_ssize_t size;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
914
71087
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
915 st->st_cur = NULL;
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
916 size = PyList_GET_SIZE(st->st_stack);
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
917 if (size) {
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
918 if (PyList_SetSlice(st->st_stack, size - 1, size, NULL) < 0)
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
919 return 0;
71129
6b3872a11299 fix possibily uninitialized memory usage (closes #12474)
Benjamin Peterson <benjamin@python.org>
parents: 71087
diff changeset
920 if (--size)
6b3872a11299 fix possibily uninitialized memory usage (closes #12474)
Benjamin Peterson <benjamin@python.org>
parents: 71087
diff changeset
921 st->st_cur = (PySTEntryObject *)PyList_GET_ITEM(st->st_stack, size - 1);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
922 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
923 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
924 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
925
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
926 static int
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
927 symtable_enter_block(struct symtable *st, identifier name, _Py_block_ty block,
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
928 void *ast, int lineno, int col_offset)
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
929 {
71087
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
930 PySTEntryObject *prev = NULL, *ste;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
931
71087
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
932 ste = ste_new(st, name, block, ast, lineno, col_offset);
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
933 if (ste == NULL)
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
934 return 0;
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
935 if (PyList_Append(st->st_stack, (PyObject *)ste) < 0) {
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
936 Py_DECREF(ste);
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
937 return 0;
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
938 }
71087
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
939 prev = st->st_cur;
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
940 /* The entry is owned by the stack. Borrow it for st_cur. */
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
941 Py_DECREF(ste);
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
942 st->st_cur = ste;
65393
3618d9d7902d Merged revisions 85562 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 61467
diff changeset
943 if (block == ModuleBlock)
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
944 st->st_global = st->st_cur->ste_symbols;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
945 if (prev) {
71087
151142c0c5b1 store the current scope on the stack right away
Benjamin Peterson <benjamin@python.org>
parents: 71082
diff changeset
946 if (PyList_Append(prev->ste_children, (PyObject *)ste) < 0) {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
947 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
948 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
949 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
950 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
951 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
952
36231
d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits
Neal Norwitz <nnorwitz@gmail.com>
parents: 36226
diff changeset
953 static long
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
954 symtable_lookup(struct symtable *st, PyObject *name)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
955 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
956 PyObject *o;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
957 PyObject *mangled = _Py_Mangle(st->st_private, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
958 if (!mangled)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
959 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
960 o = PyDict_GetItem(st->st_cur->ste_symbols, mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
961 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
962 if (!o)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
963 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
964 return PyLong_AsLong(o);
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
965 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
966
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
967 static int
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
968 symtable_add_def(struct symtable *st, PyObject *name, int flag)
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
969 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
970 PyObject *o;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
971 PyObject *dict;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
972 long val;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
973 PyObject *mangled = _Py_Mangle(st->st_private, name);
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
974
40965
30e5cb3a55ac Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 40898
diff changeset
975
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
976 if (!mangled)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
977 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
978 dict = st->st_cur->ste_symbols;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
979 if ((o = PyDict_GetItem(dict, mangled))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
980 val = PyLong_AS_LONG(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
981 if ((flag & DEF_PARAM) && (val & DEF_PARAM)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
982 /* Is it better to use 'mangled' or 'name' here? */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
983 PyErr_Format(PyExc_SyntaxError, DUPLICATE_ARGUMENT, name);
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
984 PyErr_SyntaxLocationEx(st->st_filename,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
985 st->st_cur->ste_lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
986 st->st_cur->ste_col_offset);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
987 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
988 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
989 val |= flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
990 } else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
991 val = flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
992 o = PyLong_FromLong(val);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
993 if (o == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
994 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
995 if (PyDict_SetItem(dict, mangled, o) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
996 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
997 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
998 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
999 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1000
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1001 if (flag & DEF_PARAM) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1002 if (PyList_Append(st->st_cur->ste_varnames, mangled) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1003 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1004 } else if (flag & DEF_GLOBAL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1005 /* XXX need to update DEF_GLOBAL for other flags too;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1006 perhaps only DEF_FREE_GLOBAL */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1007 val = flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1008 if ((o = PyDict_GetItem(st->st_global, mangled))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1009 val |= PyLong_AS_LONG(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1010 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1011 o = PyLong_FromLong(val);
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1012 if (o == NULL)
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1013 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1014 if (PyDict_SetItem(st->st_global, mangled, o) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1015 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1016 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1017 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1018 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1019 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1020 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1021 return 1;
35779
19d796bd740f Fix private name mangling. The symtable also must do mangles so that
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 35766
diff changeset
1022
19d796bd740f Fix private name mangling. The symtable also must do mangles so that
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 35766
diff changeset
1023 error:
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1024 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1025 return 0;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1026 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1027
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1028 /* VISIT, VISIT_SEQ and VIST_SEQ_TAIL take an ASDL type as their second argument.
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1029 They use the ASDL name to synthesize the name of the C type and the visit
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1030 function.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1031
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1032 VISIT_SEQ_TAIL permits the start of an ASDL sequence to be skipped, which is
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1033 useful if the first node in the sequence requires special treatment.
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1034 */
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1035
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1036 #define VISIT(ST, TYPE, V) \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1037 if (!symtable_visit_ ## TYPE((ST), (V))) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1038 return 0;
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1039
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1040 #define VISIT_SEQ(ST, TYPE, SEQ) { \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1041 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1042 asdl_seq *seq = (SEQ); /* avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1043 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1044 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1045 if (!symtable_visit_ ## TYPE((ST), elt)) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1046 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1047 } \
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1048 }
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1049
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1050 #define VISIT_SEQ_TAIL(ST, TYPE, SEQ, START) { \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1051 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1052 asdl_seq *seq = (SEQ); /* avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1053 for (i = (START); i < asdl_seq_LEN(seq); i++) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1054 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1055 if (!symtable_visit_ ## TYPE((ST), elt)) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1056 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1057 } \
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1058 }
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1059
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1060 #define VISIT_KWONLYDEFAULTS(ST, KW_DEFAULTS) { \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1061 int i = 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1062 asdl_seq *seq = (KW_DEFAULTS); /* avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1063 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1064 expr_ty elt = (expr_ty)asdl_seq_GET(seq, i); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1065 if (!elt) continue; /* can be NULL */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1066 if (!symtable_visit_expr((ST), elt)) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1067 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1068 } \
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1069 }
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1070
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1071 static int
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1072 symtable_new_tmpname(struct symtable *st)
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1073 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1074 char tmpname[256];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1075 identifier tmp;
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1076
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1077 PyOS_snprintf(tmpname, sizeof(tmpname), "_[%d]",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1078 ++st->st_cur->ste_tmpname);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1079 tmp = PyUnicode_InternFromString(tmpname);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1080 if (!tmp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1081 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1082 if (!symtable_add_def(st, tmp, DEF_LOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1083 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1084 Py_DECREF(tmp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1085 return 1;
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1086 }
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1087
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1088
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1089 static int
80147
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1090 symtable_record_directive(struct symtable *st, identifier name, stmt_ty s)
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1091 {
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1092 PyObject *data;
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1093 int res;
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1094 if (!st->st_cur->ste_directives) {
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1095 st->st_cur->ste_directives = PyList_New(0);
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1096 if (!st->st_cur->ste_directives)
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1097 return 0;
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1098 }
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1099 data = Py_BuildValue("(Oii)", name, s->lineno, s->col_offset);
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1100 if (!data)
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1101 return 0;
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1102 res = PyList_Append(st->st_cur->ste_directives, data);
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1103 Py_DECREF(data);
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1104 return res == 0;
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1105 }
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1106
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1107
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1108 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1109 symtable_visit_stmt(struct symtable *st, stmt_ty s)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1110 {
61467
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parents: 57378
diff changeset
1111 switch (s->kind) {
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parents: 57378
diff changeset
1112 case FunctionDef_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1113 if (!symtable_add_def(st, s->v.FunctionDef.name, DEF_LOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1114 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1115 if (s->v.FunctionDef.args->defaults)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1116 VISIT_SEQ(st, expr, s->v.FunctionDef.args->defaults);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1117 if (s->v.FunctionDef.args->kw_defaults)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1118 VISIT_KWONLYDEFAULTS(st,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1119 s->v.FunctionDef.args->kw_defaults);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1120 if (!symtable_visit_annotations(st, s))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1121 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1122 if (s->v.FunctionDef.decorator_list)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1123 VISIT_SEQ(st, expr, s->v.FunctionDef.decorator_list);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1124 if (!symtable_enter_block(st, s->v.FunctionDef.name,
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1125 FunctionBlock, (void *)s, s->lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1126 s->col_offset))
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1127 return 0;
71082
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1128 VISIT(st, arguments, s->v.FunctionDef.args);
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1129 VISIT_SEQ(st, stmt, s->v.FunctionDef.body);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1130 if (!symtable_exit_block(st, s))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1131 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1132 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1133 case ClassDef_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1134 PyObject *tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1135 if (!symtable_add_def(st, s->v.ClassDef.name, DEF_LOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1136 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1137 VISIT_SEQ(st, expr, s->v.ClassDef.bases);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1138 VISIT_SEQ(st, keyword, s->v.ClassDef.keywords);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1139 if (s->v.ClassDef.starargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1140 VISIT(st, expr, s->v.ClassDef.starargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1141 if (s->v.ClassDef.kwargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1142 VISIT(st, expr, s->v.ClassDef.kwargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1143 if (s->v.ClassDef.decorator_list)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1144 VISIT_SEQ(st, expr, s->v.ClassDef.decorator_list);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1145 if (!symtable_enter_block(st, s->v.ClassDef.name, ClassBlock,
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1146 (void *)s, s->lineno, s->col_offset))
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1147 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1148 if (!GET_IDENTIFIER(__class__) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1149 !symtable_add_def(st, __class__, DEF_LOCAL) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1150 !GET_IDENTIFIER(__locals__) ||
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1151 !symtable_add_def(st, __locals__, DEF_PARAM)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1152 symtable_exit_block(st, s);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1153 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1154 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1155 tmp = st->st_private;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1156 st->st_private = s->v.ClassDef.name;
71082
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1157 VISIT_SEQ(st, stmt, s->v.ClassDef.body);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1158 st->st_private = tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1159 if (!symtable_exit_block(st, s))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1160 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1161 break;
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parents: 57378
diff changeset
1162 }
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parents: 57378
diff changeset
1163 case Return_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1164 if (s->v.Return.value) {
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parents: 57378
diff changeset
1165 VISIT(st, expr, s->v.Return.value);
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parents: 57378
diff changeset
1166 st->st_cur->ste_returns_value = 1;
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parents: 57378
diff changeset
1167 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1168 break;
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parents: 57378
diff changeset
1169 case Delete_kind:
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parents: 57378
diff changeset
1170 VISIT_SEQ(st, expr, s->v.Delete.targets);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1171 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1172 case Assign_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1173 VISIT_SEQ(st, expr, s->v.Assign.targets);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1174 VISIT(st, expr, s->v.Assign.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1175 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1176 case AugAssign_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1177 VISIT(st, expr, s->v.AugAssign.target);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1178 VISIT(st, expr, s->v.AugAssign.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1179 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1180 case For_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1181 VISIT(st, expr, s->v.For.target);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1182 VISIT(st, expr, s->v.For.iter);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1183 VISIT_SEQ(st, stmt, s->v.For.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1184 if (s->v.For.orelse)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1185 VISIT_SEQ(st, stmt, s->v.For.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1186 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1187 case While_kind:
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parents: 57378
diff changeset
1188 VISIT(st, expr, s->v.While.test);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1189 VISIT_SEQ(st, stmt, s->v.While.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1190 if (s->v.While.orelse)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1191 VISIT_SEQ(st, stmt, s->v.While.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1192 break;
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parents: 57378
diff changeset
1193 case If_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1194 /* XXX if 0: and lookup_yield() hacks */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1195 VISIT(st, expr, s->v.If.test);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1196 VISIT_SEQ(st, stmt, s->v.If.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1197 if (s->v.If.orelse)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1198 VISIT_SEQ(st, stmt, s->v.If.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1199 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1200 case Raise_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1201 if (s->v.Raise.exc) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1202 VISIT(st, expr, s->v.Raise.exc);
69231
b6fe63c914e4 Issue #9904: fix and clarify some comments + fix indentation in symtable code
Eli Bendersky <eliben@gmail.com>
parents: 68257
diff changeset
1203 if (s->v.Raise.cause) {
b6fe63c914e4 Issue #9904: fix and clarify some comments + fix indentation in symtable code
Eli Bendersky <eliben@gmail.com>
parents: 68257
diff changeset
1204 VISIT(st, expr, s->v.Raise.cause);
b6fe63c914e4 Issue #9904: fix and clarify some comments + fix indentation in symtable code
Eli Bendersky <eliben@gmail.com>
parents: 68257
diff changeset
1205 }
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1206 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1207 break;
70499
e0e663132363 unify TryExcept and TryFinally (closes #12199)
Benjamin Peterson <benjamin@python.org>
parents: 70438
diff changeset
1208 case Try_kind:
e0e663132363 unify TryExcept and TryFinally (closes #12199)
Benjamin Peterson <benjamin@python.org>
parents: 70438
diff changeset
1209 VISIT_SEQ(st, stmt, s->v.Try.body);
e0e663132363 unify TryExcept and TryFinally (closes #12199)
Benjamin Peterson <benjamin@python.org>
parents: 70438
diff changeset
1210 VISIT_SEQ(st, stmt, s->v.Try.orelse);
e0e663132363 unify TryExcept and TryFinally (closes #12199)
Benjamin Peterson <benjamin@python.org>
parents: 70438
diff changeset
1211 VISIT_SEQ(st, excepthandler, s->v.Try.handlers);
e0e663132363 unify TryExcept and TryFinally (closes #12199)
Benjamin Peterson <benjamin@python.org>
parents: 70438
diff changeset
1212 VISIT_SEQ(st, stmt, s->v.Try.finalbody);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1213 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1214 case Assert_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1215 VISIT(st, expr, s->v.Assert.test);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1216 if (s->v.Assert.msg)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1217 VISIT(st, expr, s->v.Assert.msg);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1218 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1219 case Import_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1220 VISIT_SEQ(st, alias, s->v.Import.names);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1221 /* XXX Don't have the lineno available inside
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1222 visit_alias */
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1223 if (st->st_cur->ste_unoptimized && !st->st_cur->ste_opt_lineno) {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1224 st->st_cur->ste_opt_lineno = s->lineno;
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1225 st->st_cur->ste_opt_col_offset = s->col_offset;
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1226 }
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1227 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1228 case ImportFrom_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1229 VISIT_SEQ(st, alias, s->v.ImportFrom.names);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1230 /* XXX Don't have the lineno available inside
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1231 visit_alias */
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1232 if (st->st_cur->ste_unoptimized && !st->st_cur->ste_opt_lineno) {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1233 st->st_cur->ste_opt_lineno = s->lineno;
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1234 st->st_cur->ste_opt_col_offset = s->col_offset;
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1235 }
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1236 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1237 case Global_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1238 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1239 asdl_seq *seq = s->v.Global.names;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1240 for (i = 0; i < asdl_seq_LEN(seq); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1241 identifier name = (identifier)asdl_seq_GET(seq, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1242 long cur = symtable_lookup(st, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1243 if (cur < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1244 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1245 if (cur & (DEF_LOCAL | USE)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1246 char buf[256];
80141
6964a9b6c1ea check return value of _PyUnicode_AsString
Benjamin Peterson <benjamin@python.org>
parents: 79010
diff changeset
1247 char *c_name = _PyUnicode_AsString(name);
6964a9b6c1ea check return value of _PyUnicode_AsString
Benjamin Peterson <benjamin@python.org>
parents: 79010
diff changeset
1248 if (!c_name)
6964a9b6c1ea check return value of _PyUnicode_AsString
Benjamin Peterson <benjamin@python.org>
parents: 79010
diff changeset
1249 return 0;
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1250 if (cur & DEF_LOCAL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1251 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1252 GLOBAL_AFTER_ASSIGN,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1253 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1254 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1255 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1256 GLOBAL_AFTER_USE,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1257 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1258 if (!symtable_warn(st, buf, s->lineno))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1259 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1260 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1261 if (!symtable_add_def(st, name, DEF_GLOBAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1262 return 0;
80147
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1263 if (!symtable_record_directive(st, name, s))
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1264 return 0;
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1265 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1266 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1267 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1268 case Nonlocal_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1269 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1270 asdl_seq *seq = s->v.Nonlocal.names;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1271 for (i = 0; i < asdl_seq_LEN(seq); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1272 identifier name = (identifier)asdl_seq_GET(seq, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1273 long cur = symtable_lookup(st, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1274 if (cur < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1275 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1276 if (cur & (DEF_LOCAL | USE)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1277 char buf[256];
80141
6964a9b6c1ea check return value of _PyUnicode_AsString
Benjamin Peterson <benjamin@python.org>
parents: 79010
diff changeset
1278 char *c_name = _PyUnicode_AsString(name);
6964a9b6c1ea check return value of _PyUnicode_AsString
Benjamin Peterson <benjamin@python.org>
parents: 79010
diff changeset
1279 if (!c_name)
6964a9b6c1ea check return value of _PyUnicode_AsString
Benjamin Peterson <benjamin@python.org>
parents: 79010
diff changeset
1280 return 0;
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1281 if (cur & DEF_LOCAL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1282 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1283 NONLOCAL_AFTER_ASSIGN,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1284 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1285 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1286 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1287 NONLOCAL_AFTER_USE,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1288 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1289 if (!symtable_warn(st, buf, s->lineno))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1290 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1291 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1292 if (!symtable_add_def(st, name, DEF_NONLOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1293 return 0;
80147
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1294 if (!symtable_record_directive(st, name, s))
fbfaef0a9c00 point errors related to nonlocals and globals to the statement declaring them (closes #10189)
Benjamin Peterson <benjamin@python.org>
parents: 80141
diff changeset
1295 return 0;
61467
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diff changeset
1296 }
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parents: 57378
diff changeset
1297 break;
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parents: 57378
diff changeset
1298 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1299 case Expr_kind:
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parents: 57378
diff changeset
1300 VISIT(st, expr, s->v.Expr.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1301 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1302 case Pass_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1303 case Break_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1304 case Continue_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1305 /* nothing to do here */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1306 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1307 case With_kind:
70438
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1308 VISIT_SEQ(st, withitem, s->v.With.items);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1309 VISIT_SEQ(st, stmt, s->v.With.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1310 break;
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parents: 57378
diff changeset
1311 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1312 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1313 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1314
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1315 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1316 symtable_visit_expr(struct symtable *st, expr_ty e)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1317 {
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1318 switch (e->kind) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1319 case BoolOp_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1320 VISIT_SEQ(st, expr, e->v.BoolOp.values);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1321 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1322 case BinOp_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1323 VISIT(st, expr, e->v.BinOp.left);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1324 VISIT(st, expr, e->v.BinOp.right);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1325 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1326 case UnaryOp_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1327 VISIT(st, expr, e->v.UnaryOp.operand);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1328 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1329 case Lambda_kind: {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57376
diff changeset
1330 if (!GET_IDENTIFIER(lambda))
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1331 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1332 if (e->v.Lambda.args->defaults)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1333 VISIT_SEQ(st, expr, e->v.Lambda.args->defaults);
73366
1e0e821d2626 Issue #13343: Fix a SystemError when a lambda expression uses a global
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 70919
diff changeset
1334 if (e->v.Lambda.args->kw_defaults)
1e0e821d2626 Issue #13343: Fix a SystemError when a lambda expression uses a global
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 70919
diff changeset
1335 VISIT_KWONLYDEFAULTS(st,
1e0e821d2626 Issue #13343: Fix a SystemError when a lambda expression uses a global
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 70919
diff changeset
1336 e->v.Lambda.args->kw_defaults);
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1337 if (!symtable_enter_block(st, lambda,
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1338 FunctionBlock, (void *)e, e->lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1339 e->col_offset))
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1340 return 0;
71082
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1341 VISIT(st, arguments, e->v.Lambda.args);
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1342 VISIT(st, expr, e->v.Lambda.body);
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1343 if (!symtable_exit_block(st, (void *)e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1344 return 0;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1345 break;
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parents: 57378
diff changeset
1346 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1347 case IfExp_kind:
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parents: 57378
diff changeset
1348 VISIT(st, expr, e->v.IfExp.test);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1349 VISIT(st, expr, e->v.IfExp.body);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1350 VISIT(st, expr, e->v.IfExp.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1351 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1352 case Dict_kind:
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parents: 57378
diff changeset
1353 VISIT_SEQ(st, expr, e->v.Dict.keys);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1354 VISIT_SEQ(st, expr, e->v.Dict.values);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1355 break;
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parents: 57378
diff changeset
1356 case Set_kind:
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parents: 57378
diff changeset
1357 VISIT_SEQ(st, expr, e->v.Set.elts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1358 break;
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parents: 57378
diff changeset
1359 case GeneratorExp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1360 if (!symtable_visit_genexp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1361 return 0;
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parents: 57378
diff changeset
1362 break;
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parents: 57378
diff changeset
1363 case ListComp_kind:
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parents: 57378
diff changeset
1364 if (!symtable_visit_listcomp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1365 return 0;
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parents: 57378
diff changeset
1366 break;
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parents: 57378
diff changeset
1367 case SetComp_kind:
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diff changeset
1368 if (!symtable_visit_setcomp(st, e))
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1369 return 0;
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parents: 57378
diff changeset
1370 break;
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parents: 57378
diff changeset
1371 case DictComp_kind:
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parents: 57378
diff changeset
1372 if (!symtable_visit_dictcomp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1373 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1374 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1375 case Yield_kind:
74391
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780)
Benjamin Peterson <benjamin@python.org>
parents: 74356
diff changeset
1376 case YieldFrom_kind: {
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780)
Benjamin Peterson <benjamin@python.org>
parents: 74356
diff changeset
1377 expr_ty value;
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780)
Benjamin Peterson <benjamin@python.org>
parents: 74356
diff changeset
1378 value = (e->kind == YieldFrom_kind) ? e->v.YieldFrom.value : e->v.Yield.value;
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780)
Benjamin Peterson <benjamin@python.org>
parents: 74356
diff changeset
1379 if (value)
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780)
Benjamin Peterson <benjamin@python.org>
parents: 74356
diff changeset
1380 VISIT(st, expr, value);
61467
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parents: 57378
diff changeset
1381 st->st_cur->ste_generator = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1382 break;
74391
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780)
Benjamin Peterson <benjamin@python.org>
parents: 74356
diff changeset
1383 }
61467
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parents: 57378
diff changeset
1384 case Compare_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1385 VISIT(st, expr, e->v.Compare.left);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1386 VISIT_SEQ(st, expr, e->v.Compare.comparators);
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parents: 57378
diff changeset
1387 break;
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parents: 57378
diff changeset
1388 case Call_kind:
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parents: 57378
diff changeset
1389 VISIT(st, expr, e->v.Call.func);
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parents: 57378
diff changeset
1390 VISIT_SEQ(st, expr, e->v.Call.args);
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diff changeset
1391 VISIT_SEQ(st, keyword, e->v.Call.keywords);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1392 if (e->v.Call.starargs)
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parents: 57378
diff changeset
1393 VISIT(st, expr, e->v.Call.starargs);
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parents: 57378
diff changeset
1394 if (e->v.Call.kwargs)
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parents: 57378
diff changeset
1395 VISIT(st, expr, e->v.Call.kwargs);
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diff changeset
1396 break;
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diff changeset
1397 case Num_kind:
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diff changeset
1398 case Str_kind:
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diff changeset
1399 case Bytes_kind:
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parents: 57378
diff changeset
1400 case Ellipsis_kind:
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diff changeset
1401 /* Nothing to do here. */
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diff changeset
1402 break;
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diff changeset
1403 /* The following exprs can be assignment targets. */
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parents: 57378
diff changeset
1404 case Attribute_kind:
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diff changeset
1405 VISIT(st, expr, e->v.Attribute.value);
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diff changeset
1406 break;
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diff changeset
1407 case Subscript_kind:
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diff changeset
1408 VISIT(st, expr, e->v.Subscript.value);
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parents: 57378
diff changeset
1409 VISIT(st, slice, e->v.Subscript.slice);
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parents: 57378
diff changeset
1410 break;
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parents: 57378
diff changeset
1411 case Starred_kind:
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diff changeset
1412 VISIT(st, expr, e->v.Starred.value);
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diff changeset
1413 break;
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parents: 57378
diff changeset
1414 case Name_kind:
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diff changeset
1415 if (!symtable_add_def(st, e->v.Name.id,
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parents: 57378
diff changeset
1416 e->v.Name.ctx == Load ? USE : DEF_LOCAL))
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diff changeset
1417 return 0;
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diff changeset
1418 /* Special-case super: it counts as a use of __class__ */
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diff changeset
1419 if (e->v.Name.ctx == Load &&
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diff changeset
1420 st->st_cur->ste_type == FunctionBlock &&
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diff changeset
1421 !PyUnicode_CompareWithASCIIString(e->v.Name.id, "super")) {
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diff changeset
1422 if (!GET_IDENTIFIER(__class__) ||
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diff changeset
1423 !symtable_add_def(st, __class__, USE))
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diff changeset
1424 return 0;
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parents: 57378
diff changeset
1425 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1426 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1427 /* child nodes of List and Tuple will have expr_context set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1428 case List_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1429 VISIT_SEQ(st, expr, e->v.List.elts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1430 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1431 case Tuple_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1432 VISIT_SEQ(st, expr, e->v.Tuple.elts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1433 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1434 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1435 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1436 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1437
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1438 static int
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1439 symtable_implicit_arg(struct symtable *st, int pos)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1440 {
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1441 PyObject *id = PyUnicode_FromFormat(".%d", pos);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1442 if (id == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1443 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1444 if (!symtable_add_def(st, id, DEF_PARAM)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1445 Py_DECREF(id);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1446 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1447 }
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parents: 57378
diff changeset
1448 Py_DECREF(id);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1449 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1450 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1451
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1452 static int
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1453 symtable_visit_params(struct symtable *st, asdl_seq *args)
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1454 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1455 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1456
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1457 if (!args)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1458 return -1;
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1459
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1460 for (i = 0; i < asdl_seq_LEN(args); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1461 arg_ty arg = (arg_ty)asdl_seq_GET(args, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1462 if (!symtable_add_def(st, arg->arg, DEF_PARAM))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1463 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1464 }
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1465
61467
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diff changeset
1466 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1467 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1468
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1469 static int
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1470 symtable_visit_argannotations(struct symtable *st, asdl_seq *args)
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1471 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1472 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1473
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1474 if (!args)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1475 return -1;
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1476
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1477 for (i = 0; i < asdl_seq_LEN(args); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1478 arg_ty arg = (arg_ty)asdl_seq_GET(args, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1479 if (arg->annotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1480 VISIT(st, expr, arg->annotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1481 }
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1482
61467
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parents: 57378
diff changeset
1483 return 1;
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1484 }
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1485
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1486 static int
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1487 symtable_visit_annotations(struct symtable *st, stmt_ty s)
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1488 {
61467
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parents: 57378
diff changeset
1489 arguments_ty a = s->v.FunctionDef.args;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1490
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1491 if (a->args && !symtable_visit_argannotations(st, a->args))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1492 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1493 if (a->varargannotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1494 VISIT(st, expr, a->varargannotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1495 if (a->kwargannotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1496 VISIT(st, expr, a->kwargannotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1497 if (a->kwonlyargs && !symtable_visit_argannotations(st, a->kwonlyargs))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1498 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1499 if (s->v.FunctionDef.returns)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1500 VISIT(st, expr, s->v.FunctionDef.returns);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1501 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
1502 }
1c4d192f1568 Merge ast-branch to head
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diff changeset
1503
61467
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diff changeset
1504 static int
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1505 symtable_visit_arguments(struct symtable *st, arguments_ty a)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1506 {
61467
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parents: 57378
diff changeset
1507 /* skip default arguments inside function block
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1508 XXX should ast be different?
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1509 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1510 if (a->args && !symtable_visit_params(st, a->args))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1511 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1512 if (a->kwonlyargs && !symtable_visit_params(st, a->kwonlyargs))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1513 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1514 if (a->vararg) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1515 if (!symtable_add_def(st, a->vararg, DEF_PARAM))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1516 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1517 st->st_cur->ste_varargs = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1518 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1519 if (a->kwarg) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1520 if (!symtable_add_def(st, a->kwarg, DEF_PARAM))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1521 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1522 st->st_cur->ste_varkeywords = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1523 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1524 return 1;
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1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1525 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1526
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1527
61467
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diff changeset
1528 static int
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1529 symtable_visit_excepthandler(struct symtable *st, excepthandler_ty eh)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1530 {
61467
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diff changeset
1531 if (eh->v.ExceptHandler.type)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1532 VISIT(st, expr, eh->v.ExceptHandler.type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1533 if (eh->v.ExceptHandler.name)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1534 if (!symtable_add_def(st, eh->v.ExceptHandler.name, DEF_LOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1535 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1536 VISIT_SEQ(st, stmt, eh->v.ExceptHandler.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1537 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
1538 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1539
70438
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1540 static int
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1541 symtable_visit_withitem(struct symtable *st, withitem_ty item)
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1542 {
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1543 VISIT(st, expr, item->context_expr);
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1544 if (item->optional_vars) {
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1545 VISIT(st, expr, item->optional_vars);
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1546 }
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1547 return 1;
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1548 }
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106)
Benjamin Peterson <benjamin@python.org>
parents: 69231
diff changeset
1549
35742
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diff changeset
1550
61467
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diff changeset
1551 static int
35742
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diff changeset
1552 symtable_visit_alias(struct symtable *st, alias_ty a)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1553 {
61467
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diff changeset
1554 /* Compute store_name, the name actually bound by the import
62260
44dc98502ac3 Merged revisions 81906 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 61466
diff changeset
1555 operation. It is different than a->name when a->name is a
61467
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diff changeset
1556 dotted package name (e.g. spam.eggs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1557 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1558 PyObject *store_name;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1559 PyObject *name = (a->asname == NULL) ? a->name : a->asname;
72475
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71129
diff changeset
1560 Py_ssize_t dot = PyUnicode_FindChar(name, '.', 0,
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71129
diff changeset
1561 PyUnicode_GET_LENGTH(name), 1);
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71129
diff changeset
1562 if (dot != -1) {
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71129
diff changeset
1563 store_name = PyUnicode_Substring(name, 0, dot);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1564 if (!store_name)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1565 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1566 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1567 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1568 store_name = name;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1569 Py_INCREF(store_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1570 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1571 if (PyUnicode_CompareWithASCIIString(name, "*")) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1572 int r = symtable_add_def(st, store_name, DEF_IMPORT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1573 Py_DECREF(store_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1574 return r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1575 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1576 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1577 if (st->st_cur->ste_type != ModuleBlock) {
70919
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1578 int lineno = st->st_cur->ste_lineno;
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1579 int col_offset = st->st_cur->ste_col_offset;
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1580 PyErr_SetString(PyExc_SyntaxError, IMPORT_STAR_WARNING);
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1581 PyErr_SyntaxLocationEx(st->st_filename, lineno, col_offset);
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1582 Py_DECREF(store_name);
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1583 return 0;
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1584 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1585 st->st_cur->ste_unoptimized |= OPT_IMPORT_STAR;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1586 Py_DECREF(store_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1587 return 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1588 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1589 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1590
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1591
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1592 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1593 symtable_visit_comprehension(struct symtable *st, comprehension_ty lc)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1594 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1595 VISIT(st, expr, lc->target);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1596 VISIT(st, expr, lc->iter);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1597 VISIT_SEQ(st, expr, lc->ifs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1598 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1599 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1600
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1601
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1602 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1603 symtable_visit_keyword(struct symtable *st, keyword_ty k)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1604 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1605 VISIT(st, expr, k->value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1606 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1607 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1608
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1609
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1610 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1611 symtable_visit_slice(struct symtable *st, slice_ty s)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1612 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1613 switch (s->kind) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1614 case Slice_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1615 if (s->v.Slice.lower)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1616 VISIT(st, expr, s->v.Slice.lower)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1617 if (s->v.Slice.upper)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1618 VISIT(st, expr, s->v.Slice.upper)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1619 if (s->v.Slice.step)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1620 VISIT(st, expr, s->v.Slice.step)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1621 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1622 case ExtSlice_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1623 VISIT_SEQ(st, slice, s->v.ExtSlice.dims)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1624 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1625 case Index_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1626 VISIT(st, expr, s->v.Index.value)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1627 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1628 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1629 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1630 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1631
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1632 static int
41464
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1633 symtable_handle_comprehension(struct symtable *st, expr_ty e,
42193
090588a17490 Merged revisions 56154-56264 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42084
diff changeset
1634 identifier scope_name, asdl_seq *generators,
090588a17490 Merged revisions 56154-56264 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42084
diff changeset
1635 expr_ty elt, expr_ty value)
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1636 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1637 int is_generator = (e->kind == GeneratorExp_kind);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1638 int needs_tmp = !is_generator;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1639 comprehension_ty outermost = ((comprehension_ty)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1640 asdl_seq_GET(generators, 0));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1641 /* Outermost iterator is evaluated in current scope */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1642 VISIT(st, expr, outermost->iter);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1643 /* Create comprehension scope for the rest */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1644 if (!scope_name ||
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1645 !symtable_enter_block(st, scope_name, FunctionBlock, (void *)e,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1646 e->lineno, e->col_offset)) {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1647 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1648 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1649 st->st_cur->ste_generator = is_generator;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1650 /* Outermost iter is received as an argument */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1651 if (!symtable_implicit_arg(st, 0)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1652 symtable_exit_block(st, (void *)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1653 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1654 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1655 /* Allocate temporary name if needed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1656 if (needs_tmp && !symtable_new_tmpname(st)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1657 symtable_exit_block(st, (void *)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1658 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1659 }
71082
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1660 VISIT(st, expr, outermost->target);
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1661 VISIT_SEQ(st, expr, outermost->ifs);
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1662 VISIT_SEQ_TAIL(st, comprehension, generators, 1);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1663 if (value)
71082
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1664 VISIT(st, expr, value);
099c7b0f24a6 remove VISIT_*_IN_BLOCK macros
Benjamin Peterson <benjamin@python.org>
parents: 70920
diff changeset
1665 VISIT(st, expr, elt);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1666 return symtable_exit_block(st, (void *)e);
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1667 }
41464
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1668
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1669 static int
41464
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1670 symtable_visit_genexp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1671 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1672 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(genexpr),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1673 e->v.GeneratorExp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1674 e->v.GeneratorExp.elt, NULL);
41464
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1675 }
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1676
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1677 static int
41464
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1678 symtable_visit_listcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1679 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1680 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(listcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1681 e->v.ListComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1682 e->v.ListComp.elt, NULL);
41464
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1683 }
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1684
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1685 static int
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1686 symtable_visit_setcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1687 {
61467
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1688 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(setcomp),
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1689 e->v.SetComp.generators,
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1690 e->v.SetComp.elt, NULL);
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1691 }
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1692
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1693 static int
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1694 symtable_visit_dictcomp(struct symtable *st, expr_ty e)
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1695 {
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1696 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(dictcomp),
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1697 e->v.DictComp.generators,
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1698 e->v.DictComp.key,
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1699 e->v.DictComp.value);
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1700 }