Mercurial > cpython-lru_cache-weakref

annotate Python/symtable.c @ 86913:8c9769b17171 3.2

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Backout 7d399099334d.
author Georg Brandl <georg@python.org>
date Mon, 04 Nov 2013 07:44:29 +0100
parents 99ab7006e466
children 5b64fefbc16b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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22 #define RETURN_VAL_IN_GENERATOR \
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23 "'return' with argument inside generator"
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25
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26 static PySTEntryObject *
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27 ste_new(struct symtable *st, identifier name, _Py_block_ty block,
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28 void *key, int lineno, int col_offset)
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29 {
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30 PySTEntryObject *ste = NULL;
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31 PyObject *k = NULL;
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32
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33 k = PyLong_FromVoidPtr(key);
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34 if (k == NULL)
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35 goto fail;
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36 ste = PyObject_New(PySTEntryObject, &PySTEntry_Type);
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37 if (ste == NULL) {
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38 Py_DECREF(k);
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39 goto fail;
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40 }
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41 ste->ste_table = st;
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42 ste->ste_id = k; /* ste owns reference to k */
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43
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44 ste->ste_name = name;
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45 Py_INCREF(name);
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46
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47 ste->ste_symbols = NULL;
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48 ste->ste_varnames = NULL;
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49 ste->ste_children = NULL;
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50
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51 ste->ste_symbols = PyDict_New();
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52 if (ste->ste_symbols == NULL)
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53 goto fail;
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54
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55 ste->ste_varnames = PyList_New(0);
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56 if (ste->ste_varnames == NULL)
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57 goto fail;
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58
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59 ste->ste_children = PyList_New(0);
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60 if (ste->ste_children == NULL)
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61 goto fail;
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62
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63 ste->ste_type = block;
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64 ste->ste_unoptimized = 0;
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65 ste->ste_nested = 0;
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66 ste->ste_free = 0;
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67 ste->ste_varargs = 0;
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68 ste->ste_varkeywords = 0;
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69 ste->ste_opt_lineno = 0;
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70 ste->ste_opt_col_offset = 0;
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71 ste->ste_tmpname = 0;
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72 ste->ste_lineno = lineno;
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73 ste->ste_col_offset = col_offset;
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74
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75 if (st->st_cur != NULL &&
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76 (st->st_cur->ste_nested ||
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77 st->st_cur->ste_type == FunctionBlock))
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78 ste->ste_nested = 1;
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79 ste->ste_child_free = 0;
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80 ste->ste_generator = 0;
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81 ste->ste_returns_value = 0;
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82
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83 if (PyDict_SetItem(st->st_blocks, ste->ste_id, (PyObject *)ste) < 0)
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84 goto fail;
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85
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86 return ste;
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87 fail:
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88 Py_XDECREF(ste);
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89 return NULL;
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90 }
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91
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92 static PyObject *
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93 ste_repr(PySTEntryObject *ste)
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94 {
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95 return PyUnicode_FromFormat("<symtable entry %U(%ld), line %d>",
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96 ste->ste_name,
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97 PyLong_AS_LONG(ste->ste_id), ste->ste_lineno);
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98 }
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99
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100 static void
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101 ste_dealloc(PySTEntryObject *ste)
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102 {
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103 ste->ste_table = NULL;
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104 Py_XDECREF(ste->ste_id);
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105 Py_XDECREF(ste->ste_name);
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106 Py_XDECREF(ste->ste_symbols);
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107 Py_XDECREF(ste->ste_varnames);
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108 Py_XDECREF(ste->ste_children);
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109 PyObject_Del(ste);
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110 }
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111
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112 #define OFF(x) offsetof(PySTEntryObject, x)
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113
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114 static PyMemberDef ste_memberlist[] = {
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115 {"id", T_OBJECT, OFF(ste_id), READONLY},
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116 {"name", T_OBJECT, OFF(ste_name), READONLY},
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117 {"symbols", T_OBJECT, OFF(ste_symbols), READONLY},
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118 {"varnames", T_OBJECT, OFF(ste_varnames), READONLY},
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119 {"children", T_OBJECT, OFF(ste_children), READONLY},
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120 {"optimized",T_INT, OFF(ste_unoptimized), READONLY},
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121 {"nested", T_INT, OFF(ste_nested), READONLY},
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122 {"type", T_INT, OFF(ste_type), READONLY},
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123 {"lineno", T_INT, OFF(ste_lineno), READONLY},
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124 {NULL}
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125 };
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126
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127 PyTypeObject PySTEntry_Type = {
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128 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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129 "symtable entry",
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130 sizeof(PySTEntryObject),
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131 0,
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132 (destructor)ste_dealloc, /* tp_dealloc */
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133 0, /* tp_print */
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134 0, /* tp_getattr */
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135 0, /* tp_setattr */
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136 0, /* tp_reserved */
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137 (reprfunc)ste_repr, /* tp_repr */
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138 0, /* tp_as_number */
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139 0, /* tp_as_sequence */
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140 0, /* tp_as_mapping */
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141 0, /* tp_hash */
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142 0, /* tp_call */
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143 0, /* tp_str */
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144 PyObject_GenericGetAttr, /* tp_getattro */
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145 0, /* tp_setattro */
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146 0, /* tp_as_buffer */
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147 Py_TPFLAGS_DEFAULT, /* tp_flags */
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148 0, /* tp_doc */
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149 0, /* tp_traverse */
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150 0, /* tp_clear */
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151 0, /* tp_richcompare */
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152 0, /* tp_weaklistoffset */
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153 0, /* tp_iter */
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154 0, /* tp_iternext */
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155 0, /* tp_methods */
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156 ste_memberlist, /* tp_members */
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157 0, /* tp_getset */
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158 0, /* tp_base */
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159 0, /* tp_dict */
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160 0, /* tp_descr_get */
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161 0, /* tp_descr_set */
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162 0, /* tp_dictoffset */
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163 0, /* tp_init */
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164 0, /* tp_alloc */
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165 0, /* tp_new */
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166 };
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167
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168 static int symtable_analyze(struct symtable *st);
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169 static int symtable_warn(struct symtable *st, char *msg, int lineno);
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170 static int symtable_enter_block(struct symtable *st, identifier name,
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171 _Py_block_ty block, void *ast, int lineno,
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172 int col_offset);
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173 static int symtable_exit_block(struct symtable *st, void *ast);
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174 static int symtable_visit_stmt(struct symtable *st, stmt_ty s);
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175 static int symtable_visit_expr(struct symtable *st, expr_ty s);
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176 static int symtable_visit_genexp(struct symtable *st, expr_ty s);
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177 static int symtable_visit_listcomp(struct symtable *st, expr_ty s);
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178 static int symtable_visit_setcomp(struct symtable *st, expr_ty s);
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179 static int symtable_visit_dictcomp(struct symtable *st, expr_ty s);
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180 static int symtable_visit_arguments(struct symtable *st, arguments_ty);
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181 static int symtable_visit_excepthandler(struct symtable *st, excepthandler_ty);
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182 static int symtable_visit_alias(struct symtable *st, alias_ty);
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183 static int symtable_visit_comprehension(struct symtable *st, comprehension_ty);
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184 static int symtable_visit_keyword(struct symtable *st, keyword_ty);
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185 static int symtable_visit_slice(struct symtable *st, slice_ty);
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186 static int symtable_visit_params(struct symtable *st, asdl_seq *args);
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187 static int symtable_visit_argannotations(struct symtable *st, asdl_seq *args);
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188 static int symtable_implicit_arg(struct symtable *st, int pos);
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189 static int symtable_visit_annotations(struct symtable *st, stmt_ty s);
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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
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326 /* Analyze raw symbol information to determine scope of each name.
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327
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328 The next several functions are helpers for symtable_analyze(),
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329 which determines whether a name is local, global, or free. In addition,
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330 it determines which local variables are cell variables; they provide
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331 bindings that are used for free variables in enclosed blocks.
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332
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333 There are also two kinds of global variables, implicit and explicit. An
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334 explicit global is declared with the global statement. An implicit
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335 global is a free variable for which the compiler has found no binding
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336 in an enclosing function scope. The implicit global is either a global
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337 or a builtin. Python's module and class blocks use the xxx_NAME opcodes
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338 to handle these names to implement slightly odd semantics. In such a
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339 block, the name is treated as global until it is assigned to; then it
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340 is treated as a local.
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341
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342 The symbol table requires two passes to determine the scope of each name.
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343 The first pass collects raw facts from the AST via the symtable_visit_*
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344 functions: the name is a parameter here, the name is used but not defined
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345 here, etc. The second pass analyzes these facts during a pass over the
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346 PySTEntryObjects created during pass 1.
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347
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348 When a function is entered during the second pass, the parent passes
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349 the set of all name bindings visible to its children. These bindings
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350 are used to determine if non-local variables are free or implicit globals.
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351 Names which are explicitly declared nonlocal must exist in this set of
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352 visible names - if they do not, a syntax error is raised. After doing
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353 the local analysis, it analyzes each of its child blocks using an
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354 updated set of name bindings.
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355
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356 The children update the free variable set. If a local variable is added to
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357 the free variable set by the child, the variable is marked as a cell. The
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358 function object being defined must provide runtime storage for the variable
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359 that may outlive the function's frame. Cell variables are removed from the
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360 free set before the analyze function returns to its parent.
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361
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362 During analysis, the names are:
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363 symbols: dict mapping from symbol names to flag values (including offset scope values)
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364 scopes: dict mapping from symbol names to scope values (no offset)
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365 local: set of all symbol names local to the current scope
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366 bound: set of all symbol names local to a containing function scope
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367 free: set of all symbol names referenced but not bound in child scopes
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368 global: set of all symbol names explicitly declared as global
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369 */
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370
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371 #define SET_SCOPE(DICT, NAME, I) { \
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372 PyObject *o = PyLong_FromLong(I); \
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373 if (!o) \
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374 return 0; \
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375 if (PyDict_SetItem((DICT), (NAME), o) < 0) { \
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376 Py_DECREF(o); \
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377 return 0; \
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378 } \
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379 Py_DECREF(o); \
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380 }
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381
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382 /* Decide on scope of name, given flags.
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383
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384 The namespace dictionaries may be modified to record information
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385 about the new name. For example, a new global will add an entry to
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386 global. A name that was global can be changed to local.
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387 */
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388
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389 static int
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390 analyze_name(PySTEntryObject *ste, PyObject *scopes, PyObject *name, long flags,
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391 PyObject *bound, PyObject *local, PyObject *free,
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392 PyObject *global)
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393 {
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394 if (flags & DEF_GLOBAL) {
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395 if (flags & DEF_PARAM) {
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396 PyErr_Format(PyExc_SyntaxError,
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397 "name '%U' is parameter and global",
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398 name);
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399 PyErr_SyntaxLocationEx(ste->ste_table->st_filename,
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400 ste->ste_lineno, ste->ste_col_offset);
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401
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402 return 0;
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403 }
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404 if (flags & DEF_NONLOCAL) {
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405 PyErr_Format(PyExc_SyntaxError,
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406 "name '%U' is nonlocal and global",
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407 name);
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408 return 0;
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409 }
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410 SET_SCOPE(scopes, name, GLOBAL_EXPLICIT);
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411 if (PySet_Add(global, name) < 0)
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412 return 0;
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413 if (bound && (PySet_Discard(bound, name) < 0))
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414 return 0;
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415 return 1;
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416 }
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417 if (flags & DEF_NONLOCAL) {
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418 if (flags & DEF_PARAM) {
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419 PyErr_Format(PyExc_SyntaxError,
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420 "name '%U' is parameter and nonlocal",
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421 name);
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422 return 0;
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423 }
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424 if (!bound) {
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425 PyErr_Format(PyExc_SyntaxError,
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426 "nonlocal declaration not allowed at module level");
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427 return 0;
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428 }
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429 if (!PySet_Contains(bound, name)) {
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430 PyErr_Format(PyExc_SyntaxError,
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431 "no binding for nonlocal '%U' found",
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432 name);
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433
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434 return 0;
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435 }
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436 SET_SCOPE(scopes, name, FREE);
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437 ste->ste_free = 1;
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438 return PySet_Add(free, name) >= 0;
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439 }
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440 if (flags & DEF_BOUND) {
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441 SET_SCOPE(scopes, name, LOCAL);
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442 if (PySet_Add(local, name) < 0)
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443 return 0;
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444 if (PySet_Discard(global, name) < 0)
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445 return 0;
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446 return 1;
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447 }
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448 /* If an enclosing block has a binding for this name, it
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449 is a free variable rather than a global variable.
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450 Note that having a non-NULL bound implies that the block
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451 is nested.
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452 */
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453 if (bound && PySet_Contains(bound, name)) {
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454 SET_SCOPE(scopes, name, FREE);
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455 ste->ste_free = 1;
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456 return PySet_Add(free, name) >= 0;
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457 }
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458 /* If a parent has a global statement, then call it global
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459 explicit? It could also be global implicit.
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460 */
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461 if (global && PySet_Contains(global, name)) {
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462 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
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463 return 1;
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464 }
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465 if (ste->ste_nested)
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466 ste->ste_free = 1;
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467 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
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468 return 1;
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469 }
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470
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471 #undef SET_SCOPE
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472
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473 /* If a name is defined in free and also in locals, then this block
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474 provides the binding for the free variable. The name should be
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475 marked CELL in this block and removed from the free list.
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476
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477 Note that the current block's free variables are included in free.
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478 That's safe because no name can be free and local in the same scope.
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479
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480 The 'restricted' argument may be set to a string to restrict the analysis
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481 to the one variable whose name equals that string (e.g. "__class__").
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482 */
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483
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484 static int
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485 analyze_cells(PyObject *scopes, PyObject *free, const char *restricted)
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486 {
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487 PyObject *name, *v, *v_cell;
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488 int success = 0;
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489 Py_ssize_t pos = 0;
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490
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491 v_cell = PyLong_FromLong(CELL);
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492 if (!v_cell)
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493 return 0;
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494 while (PyDict_Next(scopes, &pos, &name, &v)) {
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495 long scope;
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496 assert(PyLong_Check(v));
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497 scope = PyLong_AS_LONG(v);
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498 if (scope != LOCAL)
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499 continue;
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500 if (!PySet_Contains(free, name))
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501 continue;
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502 if (restricted != NULL &&
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503 PyUnicode_CompareWithASCIIString(name, restricted))
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504 continue;
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505 /* Replace LOCAL with CELL for this name, and remove
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506 from free. It is safe to replace the value of name
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507 in the dict, because it will not cause a resize.
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508 */
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509 if (PyDict_SetItem(scopes, name, v_cell) < 0)
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510 goto error;
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511 if (PySet_Discard(free, name) < 0)
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512 goto error;
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513 }
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514 success = 1;
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515 error:
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516 Py_DECREF(v_cell);
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517 return success;
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518 }
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519
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520 /* Check for illegal statements in unoptimized namespaces */
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521 static int
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522 check_unoptimized(const PySTEntryObject* ste) {
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523 const char* trailer;
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524
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525 if (ste->ste_type != FunctionBlock || !ste->ste_unoptimized
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526 || !(ste->ste_free || ste->ste_child_free))
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527 return 1;
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528
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529 trailer = (ste->ste_child_free ?
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530 "contains a nested function with free variables" :
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531 "is a nested function");
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532
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533 switch (ste->ste_unoptimized) {
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534 case OPT_TOPLEVEL: /* import * at top-level is fine */
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535 return 1;
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536 case OPT_IMPORT_STAR:
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537 PyErr_Format(PyExc_SyntaxError,
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538 "import * is not allowed in function '%U' because it %s",
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539 ste->ste_name, trailer);
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540 break;
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541 }
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542
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543 PyErr_SyntaxLocationEx(ste->ste_table->st_filename, ste->ste_opt_lineno,
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544 ste->ste_opt_col_offset);
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545 return 0;
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546 }
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547
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548 /* Enter the final scope information into the ste_symbols dict.
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549 *
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550 * All arguments are dicts. Modifies symbols, others are read-only.
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551 */
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552 static int
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553 update_symbols(PyObject *symbols, PyObject *scopes,
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diff changeset
554 PyObject *bound, PyObject *free, int classflag)
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555 {
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556 PyObject *name = NULL, *itr = NULL;
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557 PyObject *v = NULL, *v_scope = NULL, *v_new = NULL, *v_free = NULL;
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558 Py_ssize_t pos = 0;
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559
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560 /* Update scope information for all symbols in this scope */
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561 while (PyDict_Next(symbols, &pos, &name, &v)) {
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562 long scope, flags;
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563 assert(PyLong_Check(v));
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564 flags = PyLong_AS_LONG(v);
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565 v_scope = PyDict_GetItem(scopes, name);
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566 assert(v_scope && PyLong_Check(v_scope));
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567 scope = PyLong_AS_LONG(v_scope);
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568 flags |= (scope << SCOPE_OFFSET);
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569 v_new = PyLong_FromLong(flags);
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570 if (!v_new)
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571 return 0;
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572 if (PyDict_SetItem(symbols, name, v_new) < 0) {
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573 Py_DECREF(v_new);
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574 return 0;
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575 }
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576 Py_DECREF(v_new);
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577 }
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578
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579 /* Record not yet resolved free variables from children (if any) */
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580 v_free = PyLong_FromLong(FREE << SCOPE_OFFSET);
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581 if (!v_free)
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582 return 0;
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583
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584 itr = PyObject_GetIter(free);
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585 if (!itr)
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586 goto error;
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587
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588 while ((name = PyIter_Next(itr))) {
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589 v = PyDict_GetItem(symbols, name);
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590
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591 /* Handle symbol that already exists in this scope */
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592 if (v) {
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593 /* Handle a free variable in a method of
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594 the class that has the same name as a local
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595 or global in the class scope.
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596 */
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597 if (classflag &&
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598 PyLong_AS_LONG(v) & (DEF_BOUND | DEF_GLOBAL)) {
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599 long flags = PyLong_AS_LONG(v) | DEF_FREE_CLASS;
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600 v_new = PyLong_FromLong(flags);
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601 if (!v_new) {
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602 goto error;
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603 }
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604 if (PyDict_SetItem(symbols, name, v_new) < 0) {
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605 Py_DECREF(v_new);
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606 goto error;
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607 }
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608 Py_DECREF(v_new);
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609 }
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610 /* It's a cell, or already free in this scope */
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diff changeset
611 Py_DECREF(name);
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612 continue;
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613 }
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614 /* Handle global symbol */
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615 if (!PySet_Contains(bound, name)) {
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616 Py_DECREF(name);
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617 continue; /* it's a global */
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618 }
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619 /* Propagate new free symbol up the lexical stack */
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620 if (PyDict_SetItem(symbols, name, v_free) < 0) {
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621 goto error;
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622 }
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623 Py_DECREF(name);
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624 }
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625 Py_DECREF(itr);
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626 Py_DECREF(v_free);
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627 return 1;
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628 error:
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629 Py_XDECREF(v_free);
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630 Py_XDECREF(itr);
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631 Py_XDECREF(name);
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632 return 0;
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633 }
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634
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635 /* Make final symbol table decisions for block of ste.
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636
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637 Arguments:
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638 ste -- current symtable entry (input/output)
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639 bound -- set of variables bound in enclosing scopes (input). bound
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640 is NULL for module blocks.
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641 free -- set of free variables in enclosed scopes (output)
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642 globals -- set of declared global variables in enclosing scopes (input)
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643
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644 The implementation uses two mutually recursive functions,
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645 analyze_block() and analyze_child_block(). analyze_block() is
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646 responsible for analyzing the individual names defined in a block.
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647 analyze_child_block() prepares temporary namespace dictionaries
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648 used to evaluated nested blocks.
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649
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650 The two functions exist because a child block should see the name
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parents: 51959
diff changeset
651 bindings of its enclosing blocks, but those bindings should not
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
652 propagate back to a parent block.
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parents: 32121
diff changeset
653 */
1c4d192f1568 Merge ast-branch to head
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diff changeset
654
1c4d192f1568 Merge ast-branch to head
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diff changeset
655 static int
61467
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diff changeset
656 analyze_child_block(PySTEntryObject *entry, PyObject *bound, PyObject *free,
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
657 PyObject *global, PyObject* child_free);
52528
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Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
658
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
659 static int
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
660 analyze_block(PySTEntryObject *ste, PyObject *bound, PyObject *free,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
661 PyObject *global)
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1c4d192f1568 Merge ast-branch to head
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diff changeset
662 {
61467
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
663 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
664 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
665 PyObject *temp;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
666 int i, success = 0;
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parents: 57378
diff changeset
667 Py_ssize_t pos = 0;
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diff changeset
668
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
669 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
670 if (!local)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
671 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
672 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
673 if (!scopes)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
674 goto error;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
675
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
676 /* 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
677 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
678 ClassBlocks, the bound and global names are initialized
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
679 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
680 visible in methods. For other blocks, they are initialized
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
681 after names are analyzed.
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parents: 57378
diff changeset
682 */
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
683
61467
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parents: 57378
diff changeset
684 /* 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
685 can write reasonable helper functions?
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
686 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
687 newglobal = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
688 if (!newglobal)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
689 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
690 newfree = PySet_New(NULL);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
691 if (!newfree)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
692 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
693 newbound = PySet_New(NULL);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
694 if (!newbound)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
695 goto error;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
696
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
697 /* 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
698 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
699 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
700 this one.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
701 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
702 if (ste->ste_type == ClassBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
703 /* Pass down known globals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
704 temp = PyNumber_InPlaceOr(newglobal, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
705 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
706 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
707 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
708 /* Pass down previously bound symbols */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
709 if (bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
710 temp = PyNumber_InPlaceOr(newbound, bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
711 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
712 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
713 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
714 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
715 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
716
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
717 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
718 long flags = PyLong_AS_LONG(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
719 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
720 bound, local, free, global))
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 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
723
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
724 /* 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
725 if (ste->ste_type != ClassBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
726 /* Add function locals to bound set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
727 if (ste->ste_type == FunctionBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
728 temp = PyNumber_InPlaceOr(newbound, local);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
729 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
730 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
731 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
732 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
733 /* Pass down previously bound symbols */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
734 if (bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
735 temp = PyNumber_InPlaceOr(newbound, bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
736 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
737 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
738 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
739 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
740 /* Pass down known globals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
741 temp = PyNumber_InPlaceOr(newglobal, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
742 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
743 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
744 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
745 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
746 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
747 /* Special-case __class__ */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
748 if (!GET_IDENTIFIER(__class__))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
749 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
750 assert(PySet_Contains(local, __class__) == 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
751 if (PySet_Add(newbound, __class__) < 0)
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 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
754
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
755 /* Recursively call analyze_block() on each child block.
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
756
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
757 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
758 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
759 be collected in allfree.
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 allfree = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
762 if (!allfree)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
763 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
764 for (i = 0; i < PyList_GET_SIZE(ste->ste_children); ++i) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
765 PyObject *c = PyList_GET_ITEM(ste->ste_children, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
766 PySTEntryObject* entry;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
767 assert(c && PySTEntry_Check(c));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
768 entry = (PySTEntryObject*)c;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
769 if (!analyze_child_block(entry, newbound, newfree, newglobal,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
770 allfree))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
771 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
772 /* Check if any children have free variables */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
773 if (entry->ste_free || entry->ste_child_free)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
774 ste->ste_child_free = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
775 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
776
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
777 temp = PyNumber_InPlaceOr(newfree, allfree);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
778 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
779 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
780 Py_DECREF(temp);
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
781
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
782 /* Check if any local variables must be converted to cell variables */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
783 if (ste->ste_type == FunctionBlock && !analyze_cells(scopes, newfree,
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parents: 57378
diff changeset
784 NULL))
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
785 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
786 else if (ste->ste_type == ClassBlock && !analyze_cells(scopes, newfree,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
787 "__class__"))
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
788 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
789 /* Records the results of the analysis in the symbol table entry */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
790 if (!update_symbols(ste->ste_symbols, scopes, bound, newfree,
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parents: 57378
diff changeset
791 ste->ste_type == ClassBlock))
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
792 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
793 if (!check_unoptimized(ste))
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parents: 57378
diff changeset
794 goto error;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
795
61467
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diff changeset
796 temp = PyNumber_InPlaceOr(free, newfree);
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diff changeset
797 if (!temp)
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parents: 57378
diff changeset
798 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
799 Py_DECREF(temp);
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diff changeset
800 success = 1;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
801 error:
61467
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diff changeset
802 Py_XDECREF(scopes);
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parents: 57378
diff changeset
803 Py_XDECREF(local);
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parents: 57378
diff changeset
804 Py_XDECREF(newbound);
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parents: 57378
diff changeset
805 Py_XDECREF(newglobal);
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parents: 57378
diff changeset
806 Py_XDECREF(newfree);
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parents: 57378
diff changeset
807 Py_XDECREF(allfree);
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parents: 57378
diff changeset
808 if (!success)
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parents: 57378
diff changeset
809 assert(PyErr_Occurred());
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parents: 57378
diff changeset
810 return success;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
811 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
812
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
813 static int
61467
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diff changeset
814 analyze_child_block(PySTEntryObject *entry, PyObject *bound, PyObject *free,
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parents: 57378
diff changeset
815 PyObject *global, PyObject* child_free)
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
816 {
61467
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diff changeset
817 PyObject *temp_bound = NULL, *temp_global = NULL, *temp_free = NULL;
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diff changeset
818 PyObject *temp;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
819
61467
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diff changeset
820 /* Copy the bound and global dictionaries.
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
821
61467
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parents: 57378
diff changeset
822 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
823 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
824 dictionaries.
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
825
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
826 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
827 temp_bound = PySet_New(bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
828 if (!temp_bound)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
829 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
830 temp_free = PySet_New(free);
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parents: 57378
diff changeset
831 if (!temp_free)
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parents: 57378
diff changeset
832 goto error;
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parents: 57378
diff changeset
833 temp_global = PySet_New(global);
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parents: 57378
diff changeset
834 if (!temp_global)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
835 goto error;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
836
61467
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diff changeset
837 if (!analyze_block(entry, temp_bound, temp_free, temp_global))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
838 goto error;
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diff changeset
839 temp = PyNumber_InPlaceOr(child_free, temp_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
840 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
841 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
842 Py_DECREF(temp);
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diff changeset
843 Py_DECREF(temp_bound);
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diff changeset
844 Py_DECREF(temp_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
845 Py_DECREF(temp_global);
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diff changeset
846 return 1;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
847 error:
61467
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diff changeset
848 Py_XDECREF(temp_bound);
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diff changeset
849 Py_XDECREF(temp_free);
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diff changeset
850 Py_XDECREF(temp_global);
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parents: 57378
diff changeset
851 return 0;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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diff changeset
852 }
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
853
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
854 static int
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
855 symtable_analyze(struct symtable *st)
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diff changeset
856 {
61467
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parents: 57378
diff changeset
857 PyObject *free, *global;
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parents: 57378
diff changeset
858 int r;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
859
61467
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parents: 57378
diff changeset
860 free = PySet_New(NULL);
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parents: 57378
diff changeset
861 if (!free)
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parents: 57378
diff changeset
862 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
863 global = PySet_New(NULL);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
864 if (!global) {
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parents: 57378
diff changeset
865 Py_DECREF(free);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
866 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
867 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
868 r = analyze_block(st->st_top, NULL, free, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
869 Py_DECREF(free);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
870 Py_DECREF(global);
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parents: 57378
diff changeset
871 return r;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
872 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
873
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
874
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
875 static int
36089
4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35939
diff changeset
876 symtable_warn(struct symtable *st, char *msg, int lineno)
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
877 {
61467
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diff changeset
878 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, st->st_filename,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
879 lineno, NULL, NULL) < 0) {
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parents: 57378
diff changeset
880 if (PyErr_ExceptionMatches(PyExc_SyntaxWarning)) {
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parents: 57378
diff changeset
881 PyErr_SetString(PyExc_SyntaxError, msg);
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
882 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
883 st->st_cur->ste_col_offset);
61467
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diff changeset
884 }
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parents: 57378
diff changeset
885 return 0;
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parents: 57378
diff changeset
886 }
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parents: 57378
diff changeset
887 return 1;
35742
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
48725
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parents: 48660
diff changeset
890 /* symtable_enter_block() gets a reference via ste_new.
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
891 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
892 in symtable_exit_block().
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
893 */
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
894
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
895 static int
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
896 symtable_exit_block(struct symtable *st, void *ast)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
897 {
61467
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parents: 57378
diff changeset
898 Py_ssize_t end;
35742
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diff changeset
899
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diff changeset
900 Py_CLEAR(st->st_cur);
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parents: 57378
diff changeset
901 end = PyList_GET_SIZE(st->st_stack) - 1;
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parents: 57378
diff changeset
902 if (end >= 0) {
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parents: 57378
diff changeset
903 st->st_cur = (PySTEntryObject *)PyList_GET_ITEM(st->st_stack,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
904 end);
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parents: 57378
diff changeset
905 if (st->st_cur == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
906 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
907 Py_INCREF(st->st_cur);
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diff changeset
908 if (PySequence_DelItem(st->st_stack, end) < 0)
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parents: 57378
diff changeset
909 return 0;
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parents: 57378
diff changeset
910 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
911 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
912 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
913
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
914 static int
61467
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diff changeset
915 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
916 void *ast, int lineno, int col_offset)
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
917 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
918 PySTEntryObject *prev = NULL;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
919
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
920 if (st->st_cur) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
921 prev = st->st_cur;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
922 if (PyList_Append(st->st_stack, (PyObject *)st->st_cur) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
923 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
924 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
925 Py_DECREF(st->st_cur);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
926 }
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
927 st->st_cur = ste_new(st, name, block, ast, lineno, col_offset);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
928 if (st->st_cur == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
929 return 0;
65393
3618d9d7902d Merged revisions 85562 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 61467
diff changeset
930 if (block == ModuleBlock)
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
931 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
932 if (prev) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
933 if (PyList_Append(prev->ste_children,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
934 (PyObject *)st->st_cur) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
935 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
936 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
937 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
938 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
939 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
940
36231
d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits
Neal Norwitz <nnorwitz@gmail.com>
parents: 36226
diff changeset
941 static long
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
942 symtable_lookup(struct symtable *st, PyObject *name)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
943 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
944 PyObject *o;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
945 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
946 if (!mangled)
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 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
949 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
950 if (!o)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
951 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
952 return PyLong_AsLong(o);
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
953 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
954
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
955 static int
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
956 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
957 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
958 PyObject *o;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
959 PyObject *dict;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
960 long val;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
961 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
962
40965
30e5cb3a55ac Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 40898
diff changeset
963
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
964 if (!mangled)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
965 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
966 dict = st->st_cur->ste_symbols;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
967 if ((o = PyDict_GetItem(dict, mangled))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
968 val = PyLong_AS_LONG(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
969 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
970 /* 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
971 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
972 PyErr_SyntaxLocationEx(st->st_filename,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
973 st->st_cur->ste_lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
974 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
975 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
976 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
977 val |= flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
978 } else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
979 val = flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
980 o = PyLong_FromLong(val);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
981 if (o == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
982 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
983 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
984 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
985 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
986 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
987 Py_DECREF(o);
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
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parents: 57378
diff changeset
989 if (flag & DEF_PARAM) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
990 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
991 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
992 } else if (flag & DEF_GLOBAL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
993 /* 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
994 perhaps only DEF_FREE_GLOBAL */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
995 val = flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
996 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
997 val |= PyLong_AS_LONG(o);
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 o = PyLong_FromLong(val);
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1000 if (o == NULL)
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1001 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1002 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
1003 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1004 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1005 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1006 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1007 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1008 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1009 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
1010
19d796bd740f Fix private name mangling. The symtable also must do mangles so that
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 35766
diff changeset
1011 error:
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1012 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1013 return 0;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1014 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1015
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1016 /* 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
1017 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
1018 function.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1019
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1020 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
1021 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
1022 */
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1023
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1024 #define VISIT(ST, TYPE, V) \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1025 if (!symtable_visit_ ## TYPE((ST), (V))) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1026 return 0;
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1027
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1028 #define VISIT_IN_BLOCK(ST, TYPE, V, S) \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1029 if (!symtable_visit_ ## TYPE((ST), (V))) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1030 symtable_exit_block((ST), (S)); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1031 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1032 }
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1033
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1034 #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
1035 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1036 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
1037 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
1038 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
1039 if (!symtable_visit_ ## TYPE((ST), elt)) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1040 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1041 } \
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1042 }
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1043
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1044 #define VISIT_SEQ_IN_BLOCK(ST, TYPE, SEQ, S) { \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1045 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1046 asdl_seq *seq = (SEQ); /* avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1047 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1048 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1049 if (!symtable_visit_ ## TYPE((ST), elt)) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1050 symtable_exit_block((ST), (S)); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1051 return 0; \
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parents: 57378
diff changeset
1052 } \
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parents: 57378
diff changeset
1053 } \
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1054 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1055
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1056 #define VISIT_SEQ_TAIL(ST, TYPE, SEQ, START) { \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1057 int i; \
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parents: 57378
diff changeset
1058 asdl_seq *seq = (SEQ); /* avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1059 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
1060 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
1061 if (!symtable_visit_ ## TYPE((ST), elt)) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1062 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1063 } \
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1064 }
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1065
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1066 #define VISIT_SEQ_TAIL_IN_BLOCK(ST, TYPE, SEQ, START, S) { \
61467
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diff changeset
1067 int i; \
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diff changeset
1068 asdl_seq *seq = (SEQ); /* avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1069 for (i = (START); i < asdl_seq_LEN(seq); i++) { \
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diff changeset
1070 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
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diff changeset
1071 if (!symtable_visit_ ## TYPE((ST), elt)) { \
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diff changeset
1072 symtable_exit_block((ST), (S)); \
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diff changeset
1073 return 0; \
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diff changeset
1074 } \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1075 } \
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1076 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1077
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1078 #define VISIT_KWONLYDEFAULTS(ST, KW_DEFAULTS) { \
61467
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diff changeset
1079 int i = 0; \
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parents: 57378
diff changeset
1080 asdl_seq *seq = (KW_DEFAULTS); /* avoid variable capture */ \
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diff changeset
1081 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
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diff changeset
1082 expr_ty elt = (expr_ty)asdl_seq_GET(seq, i); \
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diff changeset
1083 if (!elt) continue; /* can be NULL */ \
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diff changeset
1084 if (!symtable_visit_expr((ST), elt)) \
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diff changeset
1085 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1086 } \
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1087 }
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1088
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1089 static int
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1090 symtable_new_tmpname(struct symtable *st)
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1091 {
61467
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diff changeset
1092 char tmpname[256];
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diff changeset
1093 identifier tmp;
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1094
61467
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diff changeset
1095 PyOS_snprintf(tmpname, sizeof(tmpname), "_[%d]",
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diff changeset
1096 ++st->st_cur->ste_tmpname);
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diff changeset
1097 tmp = PyUnicode_InternFromString(tmpname);
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diff changeset
1098 if (!tmp)
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diff changeset
1099 return 0;
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1100 if (!symtable_add_def(st, tmp, DEF_LOCAL))
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diff changeset
1101 return 0;
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diff changeset
1102 Py_DECREF(tmp);
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diff changeset
1103 return 1;
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1104 }
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1105
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1106
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1107 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1108 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
1109 {
61467
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diff changeset
1110 switch (s->kind) {
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diff changeset
1111 case FunctionDef_kind:
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1112 if (!symtable_add_def(st, s->v.FunctionDef.name, DEF_LOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1113 return 0;
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diff changeset
1114 if (s->v.FunctionDef.args->defaults)
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diff changeset
1115 VISIT_SEQ(st, expr, s->v.FunctionDef.args->defaults);
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diff changeset
1116 if (s->v.FunctionDef.args->kw_defaults)
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diff changeset
1117 VISIT_KWONLYDEFAULTS(st,
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diff changeset
1118 s->v.FunctionDef.args->kw_defaults);
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diff changeset
1119 if (!symtable_visit_annotations(st, s))
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diff changeset
1120 return 0;
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diff changeset
1121 if (s->v.FunctionDef.decorator_list)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1122 VISIT_SEQ(st, expr, s->v.FunctionDef.decorator_list);
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diff changeset
1123 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
1124 FunctionBlock, (void *)s, s->lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1125 s->col_offset))
61467
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diff changeset
1126 return 0;
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diff changeset
1127 VISIT_IN_BLOCK(st, arguments, s->v.FunctionDef.args, s);
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diff changeset
1128 VISIT_SEQ_IN_BLOCK(st, stmt, s->v.FunctionDef.body, s);
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diff changeset
1129 if (!symtable_exit_block(st, s))
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diff changeset
1130 return 0;
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diff changeset
1131 break;
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diff changeset
1132 case ClassDef_kind: {
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diff changeset
1133 PyObject *tmp;
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diff changeset
1134 if (!symtable_add_def(st, s->v.ClassDef.name, DEF_LOCAL))
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parents: 57378
diff changeset
1135 return 0;
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diff changeset
1136 VISIT_SEQ(st, expr, s->v.ClassDef.bases);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1137 VISIT_SEQ(st, keyword, s->v.ClassDef.keywords);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1138 if (s->v.ClassDef.starargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1139 VISIT(st, expr, s->v.ClassDef.starargs);
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parents: 57378
diff changeset
1140 if (s->v.ClassDef.kwargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1141 VISIT(st, expr, s->v.ClassDef.kwargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1142 if (s->v.ClassDef.decorator_list)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1143 VISIT_SEQ(st, expr, s->v.ClassDef.decorator_list);
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diff changeset
1144 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
1145 (void *)s, s->lineno, s->col_offset))
61467
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diff changeset
1146 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1147 if (!GET_IDENTIFIER(__class__) ||
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diff changeset
1148 !symtable_add_def(st, __class__, DEF_LOCAL) ||
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diff changeset
1149 !GET_IDENTIFIER(__locals__) ||
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diff changeset
1150 !symtable_add_def(st, __locals__, DEF_PARAM)) {
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diff changeset
1151 symtable_exit_block(st, s);
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diff changeset
1152 return 0;
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parents: 57378
diff changeset
1153 }
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parents: 57378
diff changeset
1154 tmp = st->st_private;
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parents: 57378
diff changeset
1155 st->st_private = s->v.ClassDef.name;
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parents: 57378
diff changeset
1156 VISIT_SEQ_IN_BLOCK(st, stmt, s->v.ClassDef.body, s);
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diff changeset
1157 st->st_private = tmp;
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diff changeset
1158 if (!symtable_exit_block(st, s))
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diff changeset
1159 return 0;
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diff changeset
1160 break;
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diff changeset
1161 }
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parents: 57378
diff changeset
1162 case Return_kind:
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diff changeset
1163 if (s->v.Return.value) {
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diff changeset
1164 VISIT(st, expr, s->v.Return.value);
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diff changeset
1165 st->st_cur->ste_returns_value = 1;
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diff changeset
1166 if (st->st_cur->ste_generator) {
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diff changeset
1167 PyErr_SetString(PyExc_SyntaxError,
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diff changeset
1168 RETURN_VAL_IN_GENERATOR);
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Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1169 PyErr_SyntaxLocationEx(st->st_filename,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1170 s->lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1171 s->col_offset);
61467
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diff changeset
1172 return 0;
43102
981ecc526703 Issue #1066: implement PEP 3109, 2/3 of PEP 3134.
Collin Winter <collinw@gmail.com>
parents: 42801
diff changeset
1173 }
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1174 }
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 Delete_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1177 VISIT_SEQ(st, expr, s->v.Delete.targets);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1178 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1179 case Assign_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1180 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
1181 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
1182 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1183 case AugAssign_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1184 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
1185 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
1186 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1187 case For_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1188 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
1189 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
1190 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
1191 if (s->v.For.orelse)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1192 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
1193 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1194 case While_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1195 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
1196 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
1197 if (s->v.While.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.While.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 If_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1201 /* 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
1202 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
1203 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
1204 if (s->v.If.orelse)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1205 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
1206 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1207 case Raise_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1208 if (s->v.Raise.exc) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1209 VISIT(st, expr, s->v.Raise.exc);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1210 if (s->v.Raise.cause) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1211 VISIT(st, expr, s->v.Raise.cause);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1212 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1213 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1214 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1215 case TryExcept_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1216 VISIT_SEQ(st, stmt, s->v.TryExcept.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1217 VISIT_SEQ(st, stmt, s->v.TryExcept.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1218 VISIT_SEQ(st, excepthandler, s->v.TryExcept.handlers);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1219 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1220 case TryFinally_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1221 VISIT_SEQ(st, stmt, s->v.TryFinally.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1222 VISIT_SEQ(st, stmt, s->v.TryFinally.finalbody);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1223 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1224 case Assert_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1225 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
1226 if (s->v.Assert.msg)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1227 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
1228 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1229 case Import_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1230 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
1231 /* 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
1232 visit_alias */
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1233 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
1234 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
1235 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
1236 }
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1237 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1238 case ImportFrom_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1239 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
1240 /* 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
1241 visit_alias */
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1242 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
1243 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
1244 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
1245 }
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1246 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1247 case Global_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1248 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1249 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
1250 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
1251 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
1252 char *c_name = _PyUnicode_AsString(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1253 long cur = symtable_lookup(st, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1254 if (cur < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1255 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1256 if (cur & (DEF_LOCAL | USE)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1257 char buf[256];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1258 if (cur & DEF_LOCAL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1259 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1260 GLOBAL_AFTER_ASSIGN,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1261 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1262 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1263 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1264 GLOBAL_AFTER_USE,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1265 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1266 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
1267 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1268 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1269 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
1270 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1271 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1272 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1273 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1274 case Nonlocal_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1275 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1276 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
1277 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
1278 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
1279 char *c_name = _PyUnicode_AsString(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1280 long cur = symtable_lookup(st, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1281 if (cur < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1282 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1283 if (cur & (DEF_LOCAL | USE)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1284 char buf[256];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1285 if (cur & DEF_LOCAL)
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_ASSIGN,
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 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1290 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1291 NONLOCAL_AFTER_USE,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1292 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1293 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
1294 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1295 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1296 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
1297 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1298 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1299 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1300 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1301 case Expr_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1302 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
1303 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1304 case Pass_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1305 case Break_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1306 case Continue_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1307 /* nothing to do here */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1308 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1309 case With_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1310 VISIT(st, expr, s->v.With.context_expr);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1311 if (s->v.With.optional_vars) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1312 VISIT(st, expr, s->v.With.optional_vars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1313 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1314 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
1315 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1316 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1317 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1318 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1319
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1320 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1321 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
1322 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1323 switch (e->kind) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1324 case BoolOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1325 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
1326 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1327 case BinOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1328 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
1329 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
1330 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1331 case UnaryOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1332 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
1333 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1334 case Lambda_kind: {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57376
diff changeset
1335 if (!GET_IDENTIFIER(lambda))
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1336 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1337 if (e->v.Lambda.args->defaults)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1338 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
1339 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
1340 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
1341 e->v.Lambda.args->kw_defaults);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1342 if (!symtable_enter_block(st, lambda,
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1343 FunctionBlock, (void *)e, e->lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1344 e->col_offset))
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1345 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1346 VISIT_IN_BLOCK(st, arguments, e->v.Lambda.args, (void*)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1347 VISIT_IN_BLOCK(st, expr, e->v.Lambda.body, (void*)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1348 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
1349 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1350 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1351 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1352 case IfExp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1353 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
1354 VISIT(st, expr, e->v.IfExp.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1355 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
1356 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1357 case Dict_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1358 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
1359 VISIT_SEQ(st, expr, e->v.Dict.values);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1360 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1361 case Set_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1362 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
1363 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1364 case GeneratorExp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1365 if (!symtable_visit_genexp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1366 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1367 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1368 case ListComp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1369 if (!symtable_visit_listcomp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1370 return 0;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1371 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1372 case SetComp_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1373 if (!symtable_visit_setcomp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1374 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1375 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1376 case DictComp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1377 if (!symtable_visit_dictcomp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1378 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1379 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1380 case Yield_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1381 if (e->v.Yield.value)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1382 VISIT(st, expr, e->v.Yield.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1383 st->st_cur->ste_generator = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1384 if (st->st_cur->ste_returns_value) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1385 PyErr_SetString(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1386 RETURN_VAL_IN_GENERATOR);
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1387 PyErr_SyntaxLocationEx(st->st_filename,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1388 e->lineno, e->col_offset);
61467
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parents: 57378
diff changeset
1389 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1390 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1391 break;
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parents: 57378
diff changeset
1392 case Compare_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1393 VISIT(st, expr, e->v.Compare.left);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1394 VISIT_SEQ(st, expr, e->v.Compare.comparators);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1395 break;
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parents: 57378
diff changeset
1396 case Call_kind:
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parents: 57378
diff changeset
1397 VISIT(st, expr, e->v.Call.func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1398 VISIT_SEQ(st, expr, e->v.Call.args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1399 VISIT_SEQ(st, keyword, e->v.Call.keywords);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1400 if (e->v.Call.starargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1401 VISIT(st, expr, e->v.Call.starargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1402 if (e->v.Call.kwargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1403 VISIT(st, expr, e->v.Call.kwargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1404 break;
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parents: 57378
diff changeset
1405 case Num_kind:
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parents: 57378
diff changeset
1406 case Str_kind:
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parents: 57378
diff changeset
1407 case Bytes_kind:
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parents: 57378
diff changeset
1408 case Ellipsis_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1409 /* Nothing to do here. */
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diff changeset
1410 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1411 /* The following exprs can be assignment targets. */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1412 case Attribute_kind:
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parents: 57378
diff changeset
1413 VISIT(st, expr, e->v.Attribute.value);
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parents: 57378
diff changeset
1414 break;
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parents: 57378
diff changeset
1415 case Subscript_kind:
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parents: 57378
diff changeset
1416 VISIT(st, expr, e->v.Subscript.value);
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parents: 57378
diff changeset
1417 VISIT(st, slice, e->v.Subscript.slice);
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parents: 57378
diff changeset
1418 break;
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parents: 57378
diff changeset
1419 case Starred_kind:
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parents: 57378
diff changeset
1420 VISIT(st, expr, e->v.Starred.value);
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parents: 57378
diff changeset
1421 break;
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parents: 57378
diff changeset
1422 case Name_kind:
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parents: 57378
diff changeset
1423 if (!symtable_add_def(st, e->v.Name.id,
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parents: 57378
diff changeset
1424 e->v.Name.ctx == Load ? USE : DEF_LOCAL))
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parents: 57378
diff changeset
1425 return 0;
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parents: 57378
diff changeset
1426 /* Special-case super: it counts as a use of __class__ */
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parents: 57378
diff changeset
1427 if (e->v.Name.ctx == Load &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1428 st->st_cur->ste_type == FunctionBlock &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1429 !PyUnicode_CompareWithASCIIString(e->v.Name.id, "super")) {
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parents: 57378
diff changeset
1430 if (!GET_IDENTIFIER(__class__) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1431 !symtable_add_def(st, __class__, USE))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1432 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1433 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1434 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1435 /* 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
1436 case List_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1437 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
1438 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1439 case Tuple_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1440 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
1441 break;
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parents: 57378
diff changeset
1442 }
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parents: 57378
diff changeset
1443 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1444 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1445
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1446 static int
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1447 symtable_implicit_arg(struct symtable *st, int pos)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1448 {
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1449 PyObject *id = PyUnicode_FromFormat(".%d", pos);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1450 if (id == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1451 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1452 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
1453 Py_DECREF(id);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1454 return 0;
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parents: 57378
diff changeset
1455 }
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parents: 57378
diff changeset
1456 Py_DECREF(id);
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diff changeset
1457 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1458 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1459
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1460 static int
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1461 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
1462 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1463 int i;
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parents: 57378
diff changeset
1464
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parents: 57378
diff changeset
1465 if (!args)
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parents: 57378
diff changeset
1466 return -1;
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1467
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1468 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
1469 arg_ty arg = (arg_ty)asdl_seq_GET(args, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1470 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
1471 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1472 }
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1473
61467
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diff changeset
1474 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1475 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1476
61467
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parents: 57378
diff changeset
1477 static int
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1478 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
1479 {
61467
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parents: 57378
diff changeset
1480 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1481
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1482 if (!args)
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parents: 57378
diff changeset
1483 return -1;
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1484
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1485 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
1486 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
1487 if (arg->annotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1488 VISIT(st, expr, arg->annotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1489 }
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1490
61467
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parents: 57378
diff changeset
1491 return 1;
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1492 }
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1493
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1494 static int
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1495 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
1496 {
61467
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diff changeset
1497 arguments_ty a = s->v.FunctionDef.args;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1498
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1499 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
1500 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1501 if (a->varargannotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1502 VISIT(st, expr, a->varargannotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1503 if (a->kwargannotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1504 VISIT(st, expr, a->kwargannotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1505 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
1506 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1507 if (s->v.FunctionDef.returns)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1508 VISIT(st, expr, s->v.FunctionDef.returns);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1509 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
1510 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1511
61467
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diff changeset
1512 static int
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1513 symtable_visit_arguments(struct symtable *st, arguments_ty a)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1514 {
61467
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parents: 57378
diff changeset
1515 /* skip default arguments inside function block
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1516 XXX should ast be different?
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1517 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1518 if (a->args && !symtable_visit_params(st, a->args))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1519 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1520 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
1521 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1522 if (a->vararg) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1523 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
1524 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1525 st->st_cur->ste_varargs = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1526 }
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parents: 57378
diff changeset
1527 if (a->kwarg) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1528 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
1529 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1530 st->st_cur->ste_varkeywords = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1531 }
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diff changeset
1532 return 1;
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diff changeset
1533 }
1c4d192f1568 Merge ast-branch to head
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diff changeset
1534
1c4d192f1568 Merge ast-branch to head
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diff changeset
1535
61467
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diff changeset
1536 static int
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
1537 symtable_visit_excepthandler(struct symtable *st, excepthandler_ty eh)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1538 {
61467
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diff changeset
1539 if (eh->v.ExceptHandler.type)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1540 VISIT(st, expr, eh->v.ExceptHandler.type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1541 if (eh->v.ExceptHandler.name)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1542 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
1543 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1544 VISIT_SEQ(st, stmt, eh->v.ExceptHandler.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1545 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
1546 }
1c4d192f1568 Merge ast-branch to head
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diff changeset
1547
1c4d192f1568 Merge ast-branch to head
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diff changeset
1548
61467
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diff changeset
1549 static int
35742
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diff changeset
1550 symtable_visit_alias(struct symtable *st, alias_ty a)
1c4d192f1568 Merge ast-branch to head
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diff changeset
1551 {
61467
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diff changeset
1552 /* Compute store_name, the name actually bound by the import
62260
44dc98502ac3 Merged revisions 81906 via svnmerge from
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parents: 61466
diff changeset
1553 operation. It is different than a->name when a->name is a
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1554 dotted package name (e.g. spam.eggs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1555 */
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parents: 57378
diff changeset
1556 PyObject *store_name;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1557 PyObject *name = (a->asname == NULL) ? a->name : a->asname;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1558 const Py_UNICODE *base = PyUnicode_AS_UNICODE(name);
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parents: 57378
diff changeset
1559 Py_UNICODE *dot = Py_UNICODE_strchr(base, '.');
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parents: 57378
diff changeset
1560 if (dot) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1561 store_name = PyUnicode_FromUnicode(base, dot - base);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1562 if (!store_name)
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diff changeset
1563 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1564 }
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parents: 57378
diff changeset
1565 else {
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diff changeset
1566 store_name = name;
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parents: 57378
diff changeset
1567 Py_INCREF(store_name);
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diff changeset
1568 }
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diff changeset
1569 if (PyUnicode_CompareWithASCIIString(name, "*")) {
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diff changeset
1570 int r = symtable_add_def(st, store_name, DEF_IMPORT);
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diff changeset
1571 Py_DECREF(store_name);
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diff changeset
1572 return r;
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diff changeset
1573 }
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diff changeset
1574 else {
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diff changeset
1575 if (st->st_cur->ste_type != ModuleBlock) {
70919
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1576 int lineno = st->st_cur->ste_lineno;
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1577 int col_offset = st->st_cur->ste_col_offset;
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1578 PyErr_SetString(PyExc_SyntaxError, IMPORT_STAR_WARNING);
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1579 PyErr_SyntaxLocationEx(st->st_filename, lineno, col_offset);
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1580 Py_DECREF(store_name);
275862274567 fix indentation
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parents: 68257
diff changeset
1581 return 0;
61467
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diff changeset
1582 }
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diff changeset
1583 st->st_cur->ste_unoptimized |= OPT_IMPORT_STAR;
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diff changeset
1584 Py_DECREF(store_name);
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diff changeset
1585 return 1;
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1586 }
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1c4d192f1568 Merge ast-branch to head
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diff changeset
1587 }
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parents: 32121
diff changeset
1588
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1589
61467
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diff changeset
1590 static int
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
1591 symtable_visit_comprehension(struct symtable *st, comprehension_ty lc)
1c4d192f1568 Merge ast-branch to head
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diff changeset
1592 {
61467
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diff changeset
1593 VISIT(st, expr, lc->target);
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diff changeset
1594 VISIT(st, expr, lc->iter);
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diff changeset
1595 VISIT_SEQ(st, expr, lc->ifs);
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diff changeset
1596 return 1;
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1c4d192f1568 Merge ast-branch to head
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diff changeset
1597 }
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parents: 32121
diff changeset
1598
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1599
61467
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diff changeset
1600 static int
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parents: 32121
diff changeset
1601 symtable_visit_keyword(struct symtable *st, keyword_ty k)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1602 {
61467
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diff changeset
1603 VISIT(st, expr, k->value);
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diff changeset
1604 return 1;
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1c4d192f1568 Merge ast-branch to head
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diff changeset
1605 }
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diff changeset
1606
1c4d192f1568 Merge ast-branch to head
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diff changeset
1607
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diff changeset
1608 static int
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1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1609 symtable_visit_slice(struct symtable *st, slice_ty s)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1610 {
61467
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diff changeset
1611 switch (s->kind) {
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parents: 57378
diff changeset
1612 case Slice_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1613 if (s->v.Slice.lower)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1614 VISIT(st, expr, s->v.Slice.lower)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1615 if (s->v.Slice.upper)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1616 VISIT(st, expr, s->v.Slice.upper)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1617 if (s->v.Slice.step)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1618 VISIT(st, expr, s->v.Slice.step)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1619 break;
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parents: 57378
diff changeset
1620 case ExtSlice_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1621 VISIT_SEQ(st, slice, s->v.ExtSlice.dims)
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diff changeset
1622 break;
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diff changeset
1623 case Index_kind:
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diff changeset
1624 VISIT(st, expr, s->v.Index.value)
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diff changeset
1625 break;
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diff changeset
1626 }
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diff changeset
1627 return 1;
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1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1628 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1629
61467
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diff changeset
1630 static int
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1631 symtable_handle_comprehension(struct symtable *st, expr_ty e,
42193
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diff changeset
1632 identifier scope_name, asdl_seq *generators,
090588a17490 Merged revisions 56154-56264 via svnmerge from
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diff changeset
1633 expr_ty elt, expr_ty value)
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1c4d192f1568 Merge ast-branch to head
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diff changeset
1634 {
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diff changeset
1635 int is_generator = (e->kind == GeneratorExp_kind);
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diff changeset
1636 int needs_tmp = !is_generator;
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diff changeset
1637 comprehension_ty outermost = ((comprehension_ty)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1638 asdl_seq_GET(generators, 0));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1639 /* Outermost iterator is evaluated in current scope */
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diff changeset
1640 VISIT(st, expr, outermost->iter);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1641 /* Create comprehension scope for the rest */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1642 if (!scope_name ||
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1643 !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
1644 e->lineno, e->col_offset)) {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1645 return 0;
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parents: 57378
diff changeset
1646 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1647 st->st_cur->ste_generator = is_generator;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1648 /* Outermost iter is received as an argument */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1649 if (!symtable_implicit_arg(st, 0)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1650 symtable_exit_block(st, (void *)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1651 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1652 }
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diff changeset
1653 /* Allocate temporary name if needed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1654 if (needs_tmp && !symtable_new_tmpname(st)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1655 symtable_exit_block(st, (void *)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1656 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1657 }
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diff changeset
1658 VISIT_IN_BLOCK(st, expr, outermost->target, (void*)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1659 VISIT_SEQ_IN_BLOCK(st, expr, outermost->ifs, (void*)e);
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diff changeset
1660 VISIT_SEQ_TAIL_IN_BLOCK(st, comprehension,
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diff changeset
1661 generators, 1, (void*)e);
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parents: 57378
diff changeset
1662 if (value)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1663 VISIT_IN_BLOCK(st, expr, value, (void*)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1664 VISIT_IN_BLOCK(st, expr, elt, (void*)e);
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diff changeset
1665 return symtable_exit_block(st, (void *)e);
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1666 }
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parents: 41226
diff changeset
1667
61467
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diff changeset
1668 static int
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diff changeset
1669 symtable_visit_genexp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1670 {
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diff changeset
1671 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(genexpr),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1672 e->v.GeneratorExp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1673 e->v.GeneratorExp.elt, NULL);
41464
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parents: 41226
diff changeset
1674 }
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parents: 41226
diff changeset
1675
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diff changeset
1676 static int
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diff changeset
1677 symtable_visit_listcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1678 {
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diff changeset
1679 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(listcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1680 e->v.ListComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1681 e->v.ListComp.elt, NULL);
41464
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parents: 41226
diff changeset
1682 }
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1683
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1684 static int
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1685 symtable_visit_setcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1686 {
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diff changeset
1687 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(setcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1688 e->v.SetComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1689 e->v.SetComp.elt, NULL);
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diff changeset
1690 }
42193
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diff changeset
1691
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diff changeset
1692 static int
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1693 symtable_visit_dictcomp(struct symtable *st, expr_ty e)
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Guido van Rossum <guido@python.org>
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1694 {
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1695 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(dictcomp),
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1696 e->v.DictComp.generators,
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1697 e->v.DictComp.key,
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1698 e->v.DictComp.value);
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1699 }