Mercurial > cpython-lru_cache-weakref

annotate Python/symtable.c @ 79006:2888356cdd4e 3.2

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Partly revert ad3824a90261 and add comment about reference ownership
author Christian Heimes <christian@cheimes.de>
date Wed, 12 Sep 2012 17:52:46 +0200
parents ad3824a90261
children 99ab7006e466 c1b950541e46
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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24
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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 goto fail;
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39 ste->ste_table = st;
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40 ste->ste_id = k; /* ste owns reference to k */
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41
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42 ste->ste_name = name;
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43 Py_INCREF(name);
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44
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45 ste->ste_symbols = NULL;
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46 ste->ste_varnames = NULL;
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47 ste->ste_children = NULL;
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48
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49 ste->ste_symbols = PyDict_New();
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50 if (ste->ste_symbols == NULL)
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51 goto fail;
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52
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53 ste->ste_varnames = PyList_New(0);
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54 if (ste->ste_varnames == NULL)
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55 goto fail;
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56
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57 ste->ste_children = PyList_New(0);
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58 if (ste->ste_children == NULL)
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59 goto fail;
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60
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61 ste->ste_type = block;
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62 ste->ste_unoptimized = 0;
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63 ste->ste_nested = 0;
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64 ste->ste_free = 0;
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65 ste->ste_varargs = 0;
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66 ste->ste_varkeywords = 0;
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67 ste->ste_opt_lineno = 0;
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68 ste->ste_opt_col_offset = 0;
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69 ste->ste_tmpname = 0;
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70 ste->ste_lineno = lineno;
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71 ste->ste_col_offset = col_offset;
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72
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73 if (st->st_cur != NULL &&
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74 (st->st_cur->ste_nested ||
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75 st->st_cur->ste_type == FunctionBlock))
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76 ste->ste_nested = 1;
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77 ste->ste_child_free = 0;
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78 ste->ste_generator = 0;
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79 ste->ste_returns_value = 0;
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80
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81 if (PyDict_SetItem(st->st_blocks, ste->ste_id, (PyObject *)ste) < 0)
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82 goto fail;
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83
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84 return ste;
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85 fail:
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86 Py_XDECREF(ste);
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87 return NULL;
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88 }
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89
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90 static PyObject *
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91 ste_repr(PySTEntryObject *ste)
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92 {
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93 return PyUnicode_FromFormat("<symtable entry %U(%ld), line %d>",
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94 ste->ste_name,
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95 PyLong_AS_LONG(ste->ste_id), ste->ste_lineno);
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96 }
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97
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98 static void
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99 ste_dealloc(PySTEntryObject *ste)
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100 {
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101 ste->ste_table = NULL;
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102 Py_XDECREF(ste->ste_id);
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103 Py_XDECREF(ste->ste_name);
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104 Py_XDECREF(ste->ste_symbols);
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105 Py_XDECREF(ste->ste_varnames);
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106 Py_XDECREF(ste->ste_children);
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107 PyObject_Del(ste);
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108 }
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109
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110 #define OFF(x) offsetof(PySTEntryObject, x)
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111
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112 static PyMemberDef ste_memberlist[] = {
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113 {"id", T_OBJECT, OFF(ste_id), READONLY},
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114 {"name", T_OBJECT, OFF(ste_name), READONLY},
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115 {"symbols", T_OBJECT, OFF(ste_symbols), READONLY},
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116 {"varnames", T_OBJECT, OFF(ste_varnames), READONLY},
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117 {"children", T_OBJECT, OFF(ste_children), READONLY},
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118 {"optimized",T_INT, OFF(ste_unoptimized), READONLY},
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119 {"nested", T_INT, OFF(ste_nested), READONLY},
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120 {"type", T_INT, OFF(ste_type), READONLY},
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121 {"lineno", T_INT, OFF(ste_lineno), READONLY},
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122 {NULL}
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123 };
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124
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125 PyTypeObject PySTEntry_Type = {
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126 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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127 "symtable entry",
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128 sizeof(PySTEntryObject),
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129 0,
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130 (destructor)ste_dealloc, /* tp_dealloc */
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131 0, /* tp_print */
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132 0, /* tp_getattr */
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133 0, /* tp_setattr */
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134 0, /* tp_reserved */
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135 (reprfunc)ste_repr, /* tp_repr */
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136 0, /* tp_as_number */
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137 0, /* tp_as_sequence */
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138 0, /* tp_as_mapping */
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139 0, /* tp_hash */
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140 0, /* tp_call */
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141 0, /* tp_str */
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142 PyObject_GenericGetAttr, /* tp_getattro */
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143 0, /* tp_setattro */
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144 0, /* tp_as_buffer */
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145 Py_TPFLAGS_DEFAULT, /* tp_flags */
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146 0, /* tp_doc */
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147 0, /* tp_traverse */
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148 0, /* tp_clear */
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149 0, /* tp_richcompare */
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150 0, /* tp_weaklistoffset */
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151 0, /* tp_iter */
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152 0, /* tp_iternext */
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153 0, /* tp_methods */
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154 ste_memberlist, /* tp_members */
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155 0, /* tp_getset */
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156 0, /* tp_base */
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157 0, /* tp_dict */
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158 0, /* tp_descr_get */
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159 0, /* tp_descr_set */
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160 0, /* tp_dictoffset */
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161 0, /* tp_init */
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162 0, /* tp_alloc */
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163 0, /* tp_new */
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164 };
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165
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166 static int symtable_analyze(struct symtable *st);
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167 static int symtable_warn(struct symtable *st, char *msg, int lineno);
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168 static int symtable_enter_block(struct symtable *st, identifier name,
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169 _Py_block_ty block, void *ast, int lineno,
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170 int col_offset);
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171 static int symtable_exit_block(struct symtable *st, void *ast);
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172 static int symtable_visit_stmt(struct symtable *st, stmt_ty s);
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173 static int symtable_visit_expr(struct symtable *st, expr_ty s);
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174 static int symtable_visit_genexp(struct symtable *st, expr_ty s);
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175 static int symtable_visit_listcomp(struct symtable *st, expr_ty s);
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176 static int symtable_visit_setcomp(struct symtable *st, expr_ty s);
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177 static int symtable_visit_dictcomp(struct symtable *st, expr_ty s);
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178 static int symtable_visit_arguments(struct symtable *st, arguments_ty);
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179 static int symtable_visit_excepthandler(struct symtable *st, excepthandler_ty);
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180 static int symtable_visit_alias(struct symtable *st, alias_ty);
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181 static int symtable_visit_comprehension(struct symtable *st, comprehension_ty);
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182 static int symtable_visit_keyword(struct symtable *st, keyword_ty);
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183 static int symtable_visit_slice(struct symtable *st, slice_ty);
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184 static int symtable_visit_params(struct symtable *st, asdl_seq *args);
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185 static int symtable_visit_argannotations(struct symtable *st, asdl_seq *args);
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186 static int symtable_implicit_arg(struct symtable *st, int pos);
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187 static int symtable_visit_annotations(struct symtable *st, stmt_ty s);
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188
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189
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190 static identifier top = NULL, lambda = NULL, genexpr = NULL,
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191 listcomp = NULL, setcomp = NULL, dictcomp = NULL,
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192 __class__ = NULL, __locals__ = NULL;
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193
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194 #define GET_IDENTIFIER(VAR) \
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195 ((VAR) ? (VAR) : ((VAR) = PyUnicode_InternFromString(# VAR)))
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196
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197 #define DUPLICATE_ARGUMENT \
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198 "duplicate argument '%U' in function definition"
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199
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200 static struct symtable *
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201 symtable_new(void)
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202 {
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203 struct symtable *st;
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204
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205 st = (struct symtable *)PyMem_Malloc(sizeof(struct symtable));
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206 if (st == NULL)
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207 return NULL;
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208
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209 st->st_filename = NULL;
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210 st->st_blocks = NULL;
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211
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212 if ((st->st_stack = PyList_New(0)) == NULL)
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213 goto fail;
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214 if ((st->st_blocks = PyDict_New()) == NULL)
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215 goto fail;
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216 st->st_cur = NULL;
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217 st->st_private = NULL;
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218 return st;
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219 fail:
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220 PySymtable_Free(st);
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221 return NULL;
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222 }
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223
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224 struct symtable *
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225 PySymtable_Build(mod_ty mod, const char *filename, PyFutureFeatures *future)
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226 {
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227 struct symtable *st = symtable_new();
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228 asdl_seq *seq;
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229 int i;
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230
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231 if (st == NULL)
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232 return st;
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233 st->st_filename = filename;
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234 st->st_future = future;
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235 /* Make the initial symbol information gathering pass */
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236 if (!GET_IDENTIFIER(top) ||
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237 !symtable_enter_block(st, top, ModuleBlock, (void *)mod, 0, 0)) {
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238 PySymtable_Free(st);
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239 return NULL;
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240 }
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241
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242 st->st_top = st->st_cur;
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243 st->st_cur->ste_unoptimized = OPT_TOPLEVEL;
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244 switch (mod->kind) {
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245 case Module_kind:
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246 seq = mod->v.Module.body;
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247 for (i = 0; i < asdl_seq_LEN(seq); i++)
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248 if (!symtable_visit_stmt(st,
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249 (stmt_ty)asdl_seq_GET(seq, i)))
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250 goto error;
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251 break;
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252 case Expression_kind:
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253 if (!symtable_visit_expr(st, mod->v.Expression.body))
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254 goto error;
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255 break;
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256 case Interactive_kind:
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257 seq = mod->v.Interactive.body;
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258 for (i = 0; i < asdl_seq_LEN(seq); i++)
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259 if (!symtable_visit_stmt(st,
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260 (stmt_ty)asdl_seq_GET(seq, i)))
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261 goto error;
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262 break;
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263 case Suite_kind:
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264 PyErr_SetString(PyExc_RuntimeError,
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265 "this compiler does not handle Suites");
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266 goto error;
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267 }
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268 if (!symtable_exit_block(st, (void *)mod)) {
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269 PySymtable_Free(st);
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270 return NULL;
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271 }
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272 /* Make the second symbol analysis pass */
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273 if (symtable_analyze(st))
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274 return st;
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275 PySymtable_Free(st);
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276 return NULL;
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277 error:
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278 (void) symtable_exit_block(st, (void *)mod);
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279 PySymtable_Free(st);
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280 return NULL;
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281 }
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282
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283 void
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284 PySymtable_Free(struct symtable *st)
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285 {
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286 Py_XDECREF(st->st_blocks);
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287 Py_XDECREF(st->st_stack);
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288 PyMem_Free((void *)st);
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289 }
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290
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291 PySTEntryObject *
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292 PySymtable_Lookup(struct symtable *st, void *key)
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293 {
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294 PyObject *k, *v;
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295
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296 k = PyLong_FromVoidPtr(key);
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297 if (k == NULL)
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298 return NULL;
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299 v = PyDict_GetItem(st->st_blocks, k);
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300 if (v) {
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301 assert(PySTEntry_Check(v));
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302 Py_INCREF(v);
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303 }
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304 else {
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305 PyErr_SetString(PyExc_KeyError,
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306 "unknown symbol table entry");
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307 }
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308
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309 Py_DECREF(k);
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310 return (PySTEntryObject *)v;
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311 }
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312
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313 int
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314 PyST_GetScope(PySTEntryObject *ste, PyObject *name)
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315 {
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316 PyObject *v = PyDict_GetItem(ste->ste_symbols, name);
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317 if (!v)
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318 return 0;
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319 assert(PyLong_Check(v));
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320 return (PyLong_AS_LONG(v) >> SCOPE_OFFSET) & SCOPE_MASK;
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321 }
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322
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323
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324 /* Analyze raw symbol information to determine scope of each name.
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325
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326 The next several functions are helpers for symtable_analyze(),
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327 which determines whether a name is local, global, or free. In addition,
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328 it determines which local variables are cell variables; they provide
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329 bindings that are used for free variables in enclosed blocks.
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330
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331 There are also two kinds of global variables, implicit and explicit. An
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332 explicit global is declared with the global statement. An implicit
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333 global is a free variable for which the compiler has found no binding
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334 in an enclosing function scope. The implicit global is either a global
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335 or a builtin. Python's module and class blocks use the xxx_NAME opcodes
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336 to handle these names to implement slightly odd semantics. In such a
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337 block, the name is treated as global until it is assigned to; then it
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338 is treated as a local.
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339
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340 The symbol table requires two passes to determine the scope of each name.
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341 The first pass collects raw facts from the AST via the symtable_visit_*
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342 functions: the name is a parameter here, the name is used but not defined
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343 here, etc. The second pass analyzes these facts during a pass over the
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344 PySTEntryObjects created during pass 1.
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345
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346 When a function is entered during the second pass, the parent passes
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347 the set of all name bindings visible to its children. These bindings
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348 are used to determine if non-local variables are free or implicit globals.
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349 Names which are explicitly declared nonlocal must exist in this set of
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350 visible names - if they do not, a syntax error is raised. After doing
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351 the local analysis, it analyzes each of its child blocks using an
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352 updated set of name bindings.
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353
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354 The children update the free variable set. If a local variable is added to
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355 the free variable set by the child, the variable is marked as a cell. The
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356 function object being defined must provide runtime storage for the variable
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357 that may outlive the function's frame. Cell variables are removed from the
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358 free set before the analyze function returns to its parent.
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359
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360 During analysis, the names are:
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361 symbols: dict mapping from symbol names to flag values (including offset scope values)
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362 scopes: dict mapping from symbol names to scope values (no offset)
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363 local: set of all symbol names local to the current scope
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364 bound: set of all symbol names local to a containing function scope
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365 free: set of all symbol names referenced but not bound in child scopes
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366 global: set of all symbol names explicitly declared as global
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367 */
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368
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369 #define SET_SCOPE(DICT, NAME, I) { \
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370 PyObject *o = PyLong_FromLong(I); \
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371 if (!o) \
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372 return 0; \
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373 if (PyDict_SetItem((DICT), (NAME), o) < 0) { \
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374 Py_DECREF(o); \
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375 return 0; \
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376 } \
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377 Py_DECREF(o); \
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378 }
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379
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380 /* Decide on scope of name, given flags.
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381
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382 The namespace dictionaries may be modified to record information
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383 about the new name. For example, a new global will add an entry to
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384 global. A name that was global can be changed to local.
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385 */
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386
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387 static int
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388 analyze_name(PySTEntryObject *ste, PyObject *scopes, PyObject *name, long flags,
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389 PyObject *bound, PyObject *local, PyObject *free,
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390 PyObject *global)
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391 {
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392 if (flags & DEF_GLOBAL) {
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393 if (flags & DEF_PARAM) {
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394 PyErr_Format(PyExc_SyntaxError,
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395 "name '%U' is parameter and global",
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396 name);
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397 PyErr_SyntaxLocationEx(ste->ste_table->st_filename,
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398 ste->ste_lineno, ste->ste_col_offset);
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399
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400 return 0;
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401 }
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402 if (flags & DEF_NONLOCAL) {
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403 PyErr_Format(PyExc_SyntaxError,
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404 "name '%U' is nonlocal and global",
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405 name);
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406 return 0;
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407 }
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408 SET_SCOPE(scopes, name, GLOBAL_EXPLICIT);
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409 if (PySet_Add(global, name) < 0)
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410 return 0;
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411 if (bound && (PySet_Discard(bound, name) < 0))
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412 return 0;
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413 return 1;
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414 }
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415 if (flags & DEF_NONLOCAL) {
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416 if (flags & DEF_PARAM) {
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417 PyErr_Format(PyExc_SyntaxError,
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418 "name '%U' is parameter and nonlocal",
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419 name);
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420 return 0;
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421 }
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422 if (!bound) {
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423 PyErr_Format(PyExc_SyntaxError,
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424 "nonlocal declaration not allowed at module level");
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425 return 0;
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426 }
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427 if (!PySet_Contains(bound, name)) {
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428 PyErr_Format(PyExc_SyntaxError,
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429 "no binding for nonlocal '%U' found",
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430 name);
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431
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432 return 0;
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433 }
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434 SET_SCOPE(scopes, name, FREE);
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435 ste->ste_free = 1;
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436 return PySet_Add(free, name) >= 0;
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437 }
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438 if (flags & DEF_BOUND) {
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439 SET_SCOPE(scopes, name, LOCAL);
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440 if (PySet_Add(local, name) < 0)
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441 return 0;
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442 if (PySet_Discard(global, name) < 0)
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443 return 0;
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444 return 1;
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445 }
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446 /* If an enclosing block has a binding for this name, it
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447 is a free variable rather than a global variable.
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448 Note that having a non-NULL bound implies that the block
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449 is nested.
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450 */
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451 if (bound && PySet_Contains(bound, name)) {
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452 SET_SCOPE(scopes, name, FREE);
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453 ste->ste_free = 1;
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454 return PySet_Add(free, name) >= 0;
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455 }
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456 /* If a parent has a global statement, then call it global
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457 explicit? It could also be global implicit.
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458 */
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459 if (global && PySet_Contains(global, name)) {
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460 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
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461 return 1;
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462 }
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463 if (ste->ste_nested)
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464 ste->ste_free = 1;
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465 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
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466 return 1;
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467 }
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468
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469 #undef SET_SCOPE
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470
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471 /* If a name is defined in free and also in locals, then this block
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472 provides the binding for the free variable. The name should be
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473 marked CELL in this block and removed from the free list.
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474
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475 Note that the current block's free variables are included in free.
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476 That's safe because no name can be free and local in the same scope.
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477
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478 The 'restricted' argument may be set to a string to restrict the analysis
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479 to the one variable whose name equals that string (e.g. "__class__").
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480 */
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481
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482 static int
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483 analyze_cells(PyObject *scopes, PyObject *free, const char *restricted)
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484 {
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485 PyObject *name, *v, *v_cell;
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486 int success = 0;
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487 Py_ssize_t pos = 0;
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488
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489 v_cell = PyLong_FromLong(CELL);
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490 if (!v_cell)
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491 return 0;
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492 while (PyDict_Next(scopes, &pos, &name, &v)) {
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493 long scope;
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494 assert(PyLong_Check(v));
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495 scope = PyLong_AS_LONG(v);
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496 if (scope != LOCAL)
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497 continue;
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498 if (!PySet_Contains(free, name))
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499 continue;
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500 if (restricted != NULL &&
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501 PyUnicode_CompareWithASCIIString(name, restricted))
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502 continue;
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503 /* Replace LOCAL with CELL for this name, and remove
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504 from free. It is safe to replace the value of name
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505 in the dict, because it will not cause a resize.
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506 */
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507 if (PyDict_SetItem(scopes, name, v_cell) < 0)
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508 goto error;
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509 if (PySet_Discard(free, name) < 0)
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510 goto error;
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511 }
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512 success = 1;
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513 error:
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514 Py_DECREF(v_cell);
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515 return success;
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516 }
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517
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518 /* Check for illegal statements in unoptimized namespaces */
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519 static int
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520 check_unoptimized(const PySTEntryObject* ste) {
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521 const char* trailer;
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522
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523 if (ste->ste_type != FunctionBlock || !ste->ste_unoptimized
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524 || !(ste->ste_free || ste->ste_child_free))
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525 return 1;
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526
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527 trailer = (ste->ste_child_free ?
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528 "contains a nested function with free variables" :
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529 "is a nested function");
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530
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531 switch (ste->ste_unoptimized) {
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532 case OPT_TOPLEVEL: /* import * at top-level is fine */
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533 return 1;
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534 case OPT_IMPORT_STAR:
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535 PyErr_Format(PyExc_SyntaxError,
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536 "import * is not allowed in function '%U' because it %s",
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537 ste->ste_name, trailer);
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538 break;
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539 }
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540
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diff changeset
541 PyErr_SyntaxLocationEx(ste->ste_table->st_filename, ste->ste_opt_lineno,
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542 ste->ste_opt_col_offset);
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543 return 0;
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544 }
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545
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546 /* Enter the final scope information into the ste_symbols dict.
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547 *
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548 * All arguments are dicts. Modifies symbols, others are read-only.
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549 */
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550 static int
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551 update_symbols(PyObject *symbols, PyObject *scopes,
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552 PyObject *bound, PyObject *free, int classflag)
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553 {
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554 PyObject *name = NULL, *itr = NULL;
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555 PyObject *v = NULL, *v_scope = NULL, *v_new = NULL, *v_free = NULL;
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556 Py_ssize_t pos = 0;
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557
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558 /* Update scope information for all symbols in this scope */
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559 while (PyDict_Next(symbols, &pos, &name, &v)) {
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560 long scope, flags;
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561 assert(PyLong_Check(v));
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562 flags = PyLong_AS_LONG(v);
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563 v_scope = PyDict_GetItem(scopes, name);
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564 assert(v_scope && PyLong_Check(v_scope));
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565 scope = PyLong_AS_LONG(v_scope);
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566 flags |= (scope << SCOPE_OFFSET);
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567 v_new = PyLong_FromLong(flags);
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568 if (!v_new)
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569 return 0;
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570 if (PyDict_SetItem(symbols, name, v_new) < 0) {
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571 Py_DECREF(v_new);
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572 return 0;
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573 }
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574 Py_DECREF(v_new);
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575 }
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576
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577 /* Record not yet resolved free variables from children (if any) */
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578 v_free = PyLong_FromLong(FREE << SCOPE_OFFSET);
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579 if (!v_free)
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580 return 0;
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581
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582 itr = PyObject_GetIter(free);
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583 if (!itr)
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584 goto error;
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585
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586 while ((name = PyIter_Next(itr))) {
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587 v = PyDict_GetItem(symbols, name);
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588
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589 /* Handle symbol that already exists in this scope */
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590 if (v) {
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591 /* Handle a free variable in a method of
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592 the class that has the same name as a local
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593 or global in the class scope.
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594 */
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595 if (classflag &&
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596 PyLong_AS_LONG(v) & (DEF_BOUND | DEF_GLOBAL)) {
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597 long flags = PyLong_AS_LONG(v) | DEF_FREE_CLASS;
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598 v_new = PyLong_FromLong(flags);
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599 if (!v_new) {
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600 goto error;
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601 }
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602 if (PyDict_SetItem(symbols, name, v_new) < 0) {
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603 Py_DECREF(v_new);
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604 goto error;
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605 }
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606 Py_DECREF(v_new);
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607 }
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608 /* It's a cell, or already free in this scope */
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609 Py_DECREF(name);
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610 continue;
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611 }
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612 /* Handle global symbol */
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diff changeset
613 if (!PySet_Contains(bound, name)) {
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614 Py_DECREF(name);
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615 continue; /* it's a global */
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616 }
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617 /* Propagate new free symbol up the lexical stack */
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618 if (PyDict_SetItem(symbols, name, v_free) < 0) {
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619 goto error;
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620 }
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621 Py_DECREF(name);
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622 }
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623 Py_DECREF(itr);
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624 Py_DECREF(v_free);
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625 return 1;
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626 error:
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627 Py_XDECREF(v_free);
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628 Py_XDECREF(itr);
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629 Py_XDECREF(name);
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630 return 0;
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631 }
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632
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633 /* Make final symbol table decisions for block of ste.
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634
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635 Arguments:
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636 ste -- current symtable entry (input/output)
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637 bound -- set of variables bound in enclosing scopes (input). bound
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638 is NULL for module blocks.
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639 free -- set of free variables in enclosed scopes (output)
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640 globals -- set of declared global variables in enclosing scopes (input)
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641
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642 The implementation uses two mutually recursive functions,
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643 analyze_block() and analyze_child_block(). analyze_block() is
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644 responsible for analyzing the individual names defined in a block.
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645 analyze_child_block() prepares temporary namespace dictionaries
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646 used to evaluated nested blocks.
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647
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648 The two functions exist because a child block should see the name
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649 bindings of its enclosing blocks, but those bindings should not
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650 propagate back to a parent block.
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651 */
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652
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diff changeset
653 static int
61467
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diff changeset
654 analyze_child_block(PySTEntryObject *entry, PyObject *bound, PyObject *free,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
655 PyObject *global, PyObject* child_free);
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parents: 51959
diff changeset
656
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
657 static int
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
658 analyze_block(PySTEntryObject *ste, PyObject *bound, PyObject *free,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
659 PyObject *global)
35742
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parents: 32121
diff changeset
660 {
61467
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diff changeset
661 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
662 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
663 PyObject *temp;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
664 int i, success = 0;
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parents: 57378
diff changeset
665 Py_ssize_t pos = 0;
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
666
61467
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
667 local = PySet_New(NULL); /* collect new names bound in block */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
668 if (!local)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
669 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
670 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
671 if (!scopes)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
672 goto error;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
673
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
674 /* Allocate new global and bound variable dictionaries. These
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
675 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
676 ClassBlocks, the bound and global names are initialized
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
677 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
678 visible in methods. For other blocks, they are initialized
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
679 after names are analyzed.
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parents: 57378
diff changeset
680 */
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parents: 51959
diff changeset
681
61467
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parents: 57378
diff changeset
682 /* TODO(jhylton): Package these dicts in a struct so that we
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
683 can write reasonable helper functions?
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
684 */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
685 newglobal = PySet_New(NULL);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
686 if (!newglobal)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
687 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
688 newfree = PySet_New(NULL);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
689 if (!newfree)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
690 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
691 newbound = PySet_New(NULL);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
692 if (!newbound)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
693 goto error;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
694
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
695 /* 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
696 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
697 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
698 this one.
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
699 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
700 if (ste->ste_type == ClassBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
701 /* Pass down known globals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
702 temp = PyNumber_InPlaceOr(newglobal, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
703 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
704 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
705 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
706 /* Pass down previously bound symbols */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
707 if (bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
708 temp = PyNumber_InPlaceOr(newbound, bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
709 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
710 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
711 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
712 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
713 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
714
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
715 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
716 long flags = PyLong_AS_LONG(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
717 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
718 bound, local, free, global))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
719 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
720 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
721
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
722 /* 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
723 if (ste->ste_type != ClassBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
724 /* Add function locals to bound set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
725 if (ste->ste_type == FunctionBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
726 temp = PyNumber_InPlaceOr(newbound, local);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
727 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
728 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
729 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
730 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
731 /* Pass down previously bound symbols */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
732 if (bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
733 temp = PyNumber_InPlaceOr(newbound, bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
734 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
735 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
736 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
737 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
738 /* Pass down known globals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
739 temp = PyNumber_InPlaceOr(newglobal, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
740 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
741 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
742 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
743 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
744 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
745 /* Special-case __class__ */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
746 if (!GET_IDENTIFIER(__class__))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
747 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
748 assert(PySet_Contains(local, __class__) == 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
749 if (PySet_Add(newbound, __class__) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
750 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
751 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
752
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
753 /* 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
754
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
755 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
756 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
757 be collected in allfree.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
758 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
759 allfree = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
760 if (!allfree)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
761 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
762 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
763 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
764 PySTEntryObject* entry;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
765 assert(c && PySTEntry_Check(c));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
766 entry = (PySTEntryObject*)c;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
767 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
768 allfree))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
769 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
770 /* 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
771 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
772 ste->ste_child_free = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
773 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
774
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
775 temp = PyNumber_InPlaceOr(newfree, allfree);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
776 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
777 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
778 Py_DECREF(temp);
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
779
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
780 /* 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
781 if (ste->ste_type == FunctionBlock && !analyze_cells(scopes, newfree,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
782 NULL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
783 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
784 else if (ste->ste_type == ClassBlock && !analyze_cells(scopes, newfree,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
785 "__class__"))
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parents: 57378
diff changeset
786 goto error;
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parents: 57378
diff changeset
787 /* Records the results of the analysis in the symbol table entry */
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diff changeset
788 if (!update_symbols(ste->ste_symbols, scopes, bound, newfree,
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diff changeset
789 ste->ste_type == ClassBlock))
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parents: 57378
diff changeset
790 goto error;
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parents: 57378
diff changeset
791 if (!check_unoptimized(ste))
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diff changeset
792 goto error;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
793
61467
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diff changeset
794 temp = PyNumber_InPlaceOr(free, newfree);
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diff changeset
795 if (!temp)
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diff changeset
796 goto error;
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diff changeset
797 Py_DECREF(temp);
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diff changeset
798 success = 1;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
799 error:
61467
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diff changeset
800 Py_XDECREF(scopes);
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diff changeset
801 Py_XDECREF(local);
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diff changeset
802 Py_XDECREF(newbound);
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parents: 57378
diff changeset
803 Py_XDECREF(newglobal);
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diff changeset
804 Py_XDECREF(newfree);
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parents: 57378
diff changeset
805 Py_XDECREF(allfree);
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parents: 57378
diff changeset
806 if (!success)
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diff changeset
807 assert(PyErr_Occurred());
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diff changeset
808 return success;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
809 }
1c4d192f1568 Merge ast-branch to head
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diff changeset
810
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
811 static int
61467
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diff changeset
812 analyze_child_block(PySTEntryObject *entry, PyObject *bound, PyObject *free,
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diff changeset
813 PyObject *global, PyObject* child_free)
52528
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Jeremy Hylton <jeremy@alum.mit.edu>
parents: 51959
diff changeset
814 {
61467
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815 PyObject *temp_bound = NULL, *temp_global = NULL, *temp_free = NULL;
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diff changeset
816 PyObject *temp;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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diff changeset
817
61467
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diff changeset
818 /* Copy the bound and global dictionaries.
52528
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diff changeset
819
61467
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diff changeset
820 These dictionary are used by all blocks enclosed by the
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diff changeset
821 current block. The analyze_block() call modifies these
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diff changeset
822 dictionaries.
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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parents: 51959
diff changeset
823
61467
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diff changeset
824 */
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diff changeset
825 temp_bound = PySet_New(bound);
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parents: 57378
diff changeset
826 if (!temp_bound)
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parents: 57378
diff changeset
827 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
828 temp_free = PySet_New(free);
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diff changeset
829 if (!temp_free)
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diff changeset
830 goto error;
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diff changeset
831 temp_global = PySet_New(global);
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diff changeset
832 if (!temp_global)
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diff changeset
833 goto error;
52528
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diff changeset
834
61467
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diff changeset
835 if (!analyze_block(entry, temp_bound, temp_free, temp_global))
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diff changeset
836 goto error;
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diff changeset
837 temp = PyNumber_InPlaceOr(child_free, temp_free);
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diff changeset
838 if (!temp)
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diff changeset
839 goto error;
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diff changeset
840 Py_DECREF(temp);
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diff changeset
841 Py_DECREF(temp_bound);
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diff changeset
842 Py_DECREF(temp_free);
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diff changeset
843 Py_DECREF(temp_global);
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diff changeset
844 return 1;
52528
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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diff changeset
845 error:
61467
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846 Py_XDECREF(temp_bound);
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diff changeset
847 Py_XDECREF(temp_free);
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diff changeset
848 Py_XDECREF(temp_global);
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parents: 57378
diff changeset
849 return 0;
52528
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diff changeset
850 }
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diff changeset
851
2b436310fc8b Merged revisions 70801,70809 via svnmerge from
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diff changeset
852 static int
35742
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parents: 32121
diff changeset
853 symtable_analyze(struct symtable *st)
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diff changeset
854 {
61467
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diff changeset
855 PyObject *free, *global;
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diff changeset
856 int r;
35742
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857
61467
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diff changeset
858 free = PySet_New(NULL);
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parents: 57378
diff changeset
859 if (!free)
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parents: 57378
diff changeset
860 return 0;
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parents: 57378
diff changeset
861 global = PySet_New(NULL);
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parents: 57378
diff changeset
862 if (!global) {
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parents: 57378
diff changeset
863 Py_DECREF(free);
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parents: 57378
diff changeset
864 return 0;
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parents: 57378
diff changeset
865 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
866 r = analyze_block(st->st_top, NULL, free, global);
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parents: 57378
diff changeset
867 Py_DECREF(free);
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parents: 57378
diff changeset
868 Py_DECREF(global);
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parents: 57378
diff changeset
869 return r;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
870 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
871
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
872
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
873 static int
36089
4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35939
diff changeset
874 symtable_warn(struct symtable *st, char *msg, int lineno)
35742
1c4d192f1568 Merge ast-branch to head
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875 {
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876 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, st->st_filename,
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diff changeset
877 lineno, NULL, NULL) < 0) {
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878 if (PyErr_ExceptionMatches(PyExc_SyntaxWarning)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
879 PyErr_SetString(PyExc_SyntaxError, msg);
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
880 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
881 st->st_cur->ste_col_offset);
61467
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diff changeset
882 }
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diff changeset
883 return 0;
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parents: 57378
diff changeset
884 }
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diff changeset
885 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
886 }
1c4d192f1568 Merge ast-branch to head
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887
48725
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parents: 48660
diff changeset
888 /* symtable_enter_block() gets a reference via ste_new.
35742
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parents: 32121
diff changeset
889 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
890 in symtable_exit_block().
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
891 */
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diff changeset
892
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diff changeset
893 static int
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diff changeset
894 symtable_exit_block(struct symtable *st, void *ast)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
895 {
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diff changeset
896 Py_ssize_t end;
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897
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diff changeset
898 Py_CLEAR(st->st_cur);
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diff changeset
899 end = PyList_GET_SIZE(st->st_stack) - 1;
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diff changeset
900 if (end >= 0) {
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901 st->st_cur = (PySTEntryObject *)PyList_GET_ITEM(st->st_stack,
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diff changeset
902 end);
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903 if (st->st_cur == NULL)
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parents: 57378
diff changeset
904 return 0;
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parents: 57378
diff changeset
905 Py_INCREF(st->st_cur);
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diff changeset
906 if (PySequence_DelItem(st->st_stack, end) < 0)
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parents: 57378
diff changeset
907 return 0;
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parents: 57378
diff changeset
908 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
909 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
910 }
1c4d192f1568 Merge ast-branch to head
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diff changeset
911
1c4d192f1568 Merge ast-branch to head
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diff changeset
912 static int
61467
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diff changeset
913 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
914 void *ast, int lineno, int col_offset)
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
915 {
61467
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diff changeset
916 PySTEntryObject *prev = NULL;
35742
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diff changeset
917
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
918 if (st->st_cur) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
919 prev = st->st_cur;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
920 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
921 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
922 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
923 Py_DECREF(st->st_cur);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
924 }
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
925 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
926 if (st->st_cur == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
927 return 0;
65393
3618d9d7902d Merged revisions 85562 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 61467
diff changeset
928 if (block == ModuleBlock)
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
929 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
930 if (prev) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
931 if (PyList_Append(prev->ste_children,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
932 (PyObject *)st->st_cur) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
933 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
934 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
935 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
936 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
937 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
938
36231
d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits
Neal Norwitz <nnorwitz@gmail.com>
parents: 36226
diff changeset
939 static long
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
940 symtable_lookup(struct symtable *st, PyObject *name)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
941 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
942 PyObject *o;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
943 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
944 if (!mangled)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
945 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
946 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
947 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
948 if (!o)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
949 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
950 return PyLong_AsLong(o);
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
951 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
952
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
953 static int
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
954 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
955 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
956 PyObject *o;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
957 PyObject *dict;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
958 long val;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
959 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
960
40965
30e5cb3a55ac Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 40898
diff changeset
961
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
962 if (!mangled)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
963 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
964 dict = st->st_cur->ste_symbols;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
965 if ((o = PyDict_GetItem(dict, mangled))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
966 val = PyLong_AS_LONG(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
967 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
968 /* 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
969 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
970 PyErr_SyntaxLocationEx(st->st_filename,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
971 st->st_cur->ste_lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
972 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
973 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
974 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
975 val |= flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
976 } else
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 o = PyLong_FromLong(val);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
979 if (o == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
980 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
981 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
982 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
983 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
984 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
985 Py_DECREF(o);
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
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parents: 57378
diff changeset
987 if (flag & DEF_PARAM) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
988 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
989 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
990 } else if (flag & DEF_GLOBAL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
991 /* 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
992 perhaps only DEF_FREE_GLOBAL */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
993 val = flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
994 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
995 val |= PyLong_AS_LONG(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
996 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
997 o = PyLong_FromLong(val);
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
998 if (o == NULL)
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
999 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1000 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
1001 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1002 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1003 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1004 Py_DECREF(o);
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(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1007 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
1008
19d796bd740f Fix private name mangling. The symtable also must do mangles so that
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 35766
diff changeset
1009 error:
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1010 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1011 return 0;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1012 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1013
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1014 /* 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
1015 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
1016 function.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1017
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1018 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
1019 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
1020 */
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1021
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1022 #define VISIT(ST, TYPE, V) \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1023 if (!symtable_visit_ ## TYPE((ST), (V))) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1024 return 0;
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1025
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1026 #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
1027 if (!symtable_visit_ ## TYPE((ST), (V))) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1028 symtable_exit_block((ST), (S)); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1029 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1030 }
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1031
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1032 #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
1033 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1034 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
1035 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
1036 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
1037 if (!symtable_visit_ ## TYPE((ST), elt)) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1038 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1039 } \
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1040 }
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1041
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1042 #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
1043 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1044 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
1045 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
1046 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
1047 if (!symtable_visit_ ## TYPE((ST), elt)) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1048 symtable_exit_block((ST), (S)); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1049 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1050 } \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1051 } \
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1052 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1053
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1054 #define VISIT_SEQ_TAIL(ST, TYPE, SEQ, START) { \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1055 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1056 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
1057 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
1058 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
1059 if (!symtable_visit_ ## TYPE((ST), elt)) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1060 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1061 } \
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1062 }
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1063
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1064 #define VISIT_SEQ_TAIL_IN_BLOCK(ST, TYPE, SEQ, START, S) { \
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1065 int i; \
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parents: 57378
diff changeset
1066 asdl_seq *seq = (SEQ); /* avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1067 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
1068 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
1069 if (!symtable_visit_ ## TYPE((ST), elt)) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1070 symtable_exit_block((ST), (S)); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1071 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1072 } \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1073 } \
35863
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1074 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35793
diff changeset
1075
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1076 #define VISIT_KWONLYDEFAULTS(ST, KW_DEFAULTS) { \
61467
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parents: 57378
diff changeset
1077 int i = 0; \
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parents: 57378
diff changeset
1078 asdl_seq *seq = (KW_DEFAULTS); /* avoid variable capture */ \
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parents: 57378
diff changeset
1079 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
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diff changeset
1080 expr_ty elt = (expr_ty)asdl_seq_GET(seq, i); \
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diff changeset
1081 if (!elt) continue; /* can be NULL */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1082 if (!symtable_visit_expr((ST), elt)) \
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parents: 57378
diff changeset
1083 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1084 } \
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1085 }
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1086
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1087 static int
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1088 symtable_new_tmpname(struct symtable *st)
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1089 {
61467
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diff changeset
1090 char tmpname[256];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1091 identifier tmp;
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1092
61467
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diff changeset
1093 PyOS_snprintf(tmpname, sizeof(tmpname), "_[%d]",
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parents: 57378
diff changeset
1094 ++st->st_cur->ste_tmpname);
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diff changeset
1095 tmp = PyUnicode_InternFromString(tmpname);
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diff changeset
1096 if (!tmp)
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diff changeset
1097 return 0;
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diff changeset
1098 if (!symtable_add_def(st, tmp, DEF_LOCAL))
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diff changeset
1099 return 0;
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diff changeset
1100 Py_DECREF(tmp);
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diff changeset
1101 return 1;
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1102 }
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1103
40215
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents: 39783
diff changeset
1104
36695
b6d2f6fd3e11 PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents: 36666
diff changeset
1105 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1106 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
1107 {
61467
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diff changeset
1108 switch (s->kind) {
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parents: 57378
diff changeset
1109 case FunctionDef_kind:
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diff changeset
1110 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
1111 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1112 if (s->v.FunctionDef.args->defaults)
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diff changeset
1113 VISIT_SEQ(st, expr, s->v.FunctionDef.args->defaults);
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diff changeset
1114 if (s->v.FunctionDef.args->kw_defaults)
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diff changeset
1115 VISIT_KWONLYDEFAULTS(st,
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diff changeset
1116 s->v.FunctionDef.args->kw_defaults);
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diff changeset
1117 if (!symtable_visit_annotations(st, s))
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diff changeset
1118 return 0;
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diff changeset
1119 if (s->v.FunctionDef.decorator_list)
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diff changeset
1120 VISIT_SEQ(st, expr, s->v.FunctionDef.decorator_list);
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diff changeset
1121 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
1122 FunctionBlock, (void *)s, s->lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1123 s->col_offset))
61467
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diff changeset
1124 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1125 VISIT_IN_BLOCK(st, arguments, s->v.FunctionDef.args, s);
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diff changeset
1126 VISIT_SEQ_IN_BLOCK(st, stmt, s->v.FunctionDef.body, s);
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diff changeset
1127 if (!symtable_exit_block(st, s))
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diff changeset
1128 return 0;
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diff changeset
1129 break;
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parents: 57378
diff changeset
1130 case ClassDef_kind: {
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parents: 57378
diff changeset
1131 PyObject *tmp;
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diff changeset
1132 if (!symtable_add_def(st, s->v.ClassDef.name, DEF_LOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1133 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1134 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
1135 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
1136 if (s->v.ClassDef.starargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1137 VISIT(st, expr, s->v.ClassDef.starargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1138 if (s->v.ClassDef.kwargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1139 VISIT(st, expr, s->v.ClassDef.kwargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1140 if (s->v.ClassDef.decorator_list)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1141 VISIT_SEQ(st, expr, s->v.ClassDef.decorator_list);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1142 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
1143 (void *)s, s->lineno, s->col_offset))
61467
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diff changeset
1144 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1145 if (!GET_IDENTIFIER(__class__) ||
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diff changeset
1146 !symtable_add_def(st, __class__, DEF_LOCAL) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1147 !GET_IDENTIFIER(__locals__) ||
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diff changeset
1148 !symtable_add_def(st, __locals__, DEF_PARAM)) {
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parents: 57378
diff changeset
1149 symtable_exit_block(st, s);
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diff changeset
1150 return 0;
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diff changeset
1151 }
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parents: 57378
diff changeset
1152 tmp = st->st_private;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1153 st->st_private = s->v.ClassDef.name;
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parents: 57378
diff changeset
1154 VISIT_SEQ_IN_BLOCK(st, stmt, s->v.ClassDef.body, s);
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diff changeset
1155 st->st_private = tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1156 if (!symtable_exit_block(st, s))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1157 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1158 break;
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parents: 57378
diff changeset
1159 }
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parents: 57378
diff changeset
1160 case Return_kind:
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diff changeset
1161 if (s->v.Return.value) {
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diff changeset
1162 VISIT(st, expr, s->v.Return.value);
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diff changeset
1163 st->st_cur->ste_returns_value = 1;
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parents: 57378
diff changeset
1164 if (st->st_cur->ste_generator) {
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diff changeset
1165 PyErr_SetString(PyExc_SyntaxError,
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diff changeset
1166 RETURN_VAL_IN_GENERATOR);
64861
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Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1167 PyErr_SyntaxLocationEx(st->st_filename,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1168 s->lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1169 s->col_offset);
61467
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diff changeset
1170 return 0;
43102
981ecc526703 Issue #1066: implement PEP 3109, 2/3 of PEP 3134.
Collin Winter <collinw@gmail.com>
parents: 42801
diff changeset
1171 }
61467
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diff changeset
1172 }
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diff changeset
1173 break;
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diff changeset
1174 case Delete_kind:
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diff changeset
1175 VISIT_SEQ(st, expr, s->v.Delete.targets);
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diff changeset
1176 break;
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parents: 57378
diff changeset
1177 case Assign_kind:
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diff changeset
1178 VISIT_SEQ(st, expr, s->v.Assign.targets);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1179 VISIT(st, expr, s->v.Assign.value);
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diff changeset
1180 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1181 case AugAssign_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1182 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
1183 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
1184 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1185 case For_kind:
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parents: 57378
diff changeset
1186 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
1187 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
1188 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
1189 if (s->v.For.orelse)
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.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1191 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1192 case While_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1193 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
1194 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
1195 if (s->v.While.orelse)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1196 VISIT_SEQ(st, stmt, s->v.While.orelse);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1197 break;
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parents: 57378
diff changeset
1198 case If_kind:
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parents: 57378
diff changeset
1199 /* XXX if 0: and lookup_yield() hacks */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1200 VISIT(st, expr, s->v.If.test);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1201 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
1202 if (s->v.If.orelse)
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.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1204 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1205 case Raise_kind:
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parents: 57378
diff changeset
1206 if (s->v.Raise.exc) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1207 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
1208 if (s->v.Raise.cause) {
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.cause);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1210 }
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parents: 57378
diff changeset
1211 }
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parents: 57378
diff changeset
1212 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1213 case TryExcept_kind:
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parents: 57378
diff changeset
1214 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
1215 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
1216 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
1217 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1218 case TryFinally_kind:
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parents: 57378
diff changeset
1219 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
1220 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
1221 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1222 case Assert_kind:
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parents: 57378
diff changeset
1223 VISIT(st, expr, s->v.Assert.test);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1224 if (s->v.Assert.msg)
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.msg);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1226 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1227 case Import_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1228 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
1229 /* 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
1230 visit_alias */
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1231 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
1232 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
1233 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
1234 }
61467
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parents: 57378
diff changeset
1235 break;
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parents: 57378
diff changeset
1236 case ImportFrom_kind:
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parents: 57378
diff changeset
1237 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
1238 /* 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
1239 visit_alias */
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1240 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
1241 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
1242 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
1243 }
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1244 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1245 case Global_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1246 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1247 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
1248 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
1249 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
1250 char *c_name = _PyUnicode_AsString(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1251 long cur = symtable_lookup(st, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1252 if (cur < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1253 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1254 if (cur & (DEF_LOCAL | USE)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1255 char buf[256];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1256 if (cur & DEF_LOCAL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1257 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1258 GLOBAL_AFTER_ASSIGN,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1259 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1260 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1261 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1262 GLOBAL_AFTER_USE,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1263 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1264 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
1265 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1266 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1267 if (!symtable_add_def(st, name, DEF_GLOBAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1268 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1269 }
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parents: 57378
diff changeset
1270 break;
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parents: 57378
diff changeset
1271 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1272 case Nonlocal_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1273 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1274 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
1275 for (i = 0; i < asdl_seq_LEN(seq); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1276 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
1277 char *c_name = _PyUnicode_AsString(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1278 long cur = symtable_lookup(st, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1279 if (cur < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1280 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1281 if (cur & (DEF_LOCAL | USE)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1282 char buf[256];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1283 if (cur & DEF_LOCAL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1284 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1285 NONLOCAL_AFTER_ASSIGN,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1286 c_name);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1287 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1288 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1289 NONLOCAL_AFTER_USE,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1290 c_name);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1291 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
1292 return 0;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1293 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1294 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
1295 return 0;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1296 }
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parents: 57378
diff changeset
1297 break;
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parents: 57378
diff changeset
1298 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1299 case Expr_kind:
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parents: 57378
diff changeset
1300 VISIT(st, expr, s->v.Expr.value);
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parents: 57378
diff changeset
1301 break;
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parents: 57378
diff changeset
1302 case Pass_kind:
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parents: 57378
diff changeset
1303 case Break_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1304 case Continue_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1305 /* nothing to do here */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1306 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1307 case With_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1308 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
1309 if (s->v.With.optional_vars) {
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.optional_vars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1311 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1312 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
1313 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1314 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1315 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1316 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1317
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1318 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1319 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
1320 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1321 switch (e->kind) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1322 case BoolOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1323 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
1324 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1325 case BinOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1326 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
1327 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
1328 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1329 case UnaryOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1330 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
1331 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1332 case Lambda_kind: {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57376
diff changeset
1333 if (!GET_IDENTIFIER(lambda))
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1334 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1335 if (e->v.Lambda.args->defaults)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1336 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
1337 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
1338 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
1339 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
1340 if (!symtable_enter_block(st, lambda,
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1341 FunctionBlock, (void *)e, e->lineno,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1342 e->col_offset))
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1343 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1344 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
1345 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
1346 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
1347 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1348 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1349 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1350 case IfExp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1351 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
1352 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
1353 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
1354 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1355 case Dict_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1356 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
1357 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
1358 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1359 case Set_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1360 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
1361 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1362 case GeneratorExp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1363 if (!symtable_visit_genexp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1364 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1365 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1366 case ListComp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1367 if (!symtable_visit_listcomp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1368 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1369 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1370 case SetComp_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1371 if (!symtable_visit_setcomp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1372 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1373 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1374 case DictComp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1375 if (!symtable_visit_dictcomp(st, e))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1376 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1377 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1378 case Yield_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1379 if (e->v.Yield.value)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1380 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
1381 st->st_cur->ste_generator = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1382 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
1383 PyErr_SetString(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1384 RETURN_VAL_IN_GENERATOR);
64861
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1385 PyErr_SyntaxLocationEx(st->st_filename,
861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1386 e->lineno, e->col_offset);
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1387 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1388 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1389 break;
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parents: 57378
diff changeset
1390 case Compare_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1391 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
1392 VISIT_SEQ(st, expr, e->v.Compare.comparators);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1393 break;
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parents: 57378
diff changeset
1394 case Call_kind:
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parents: 57378
diff changeset
1395 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
1396 VISIT_SEQ(st, expr, e->v.Call.args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1397 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
1398 if (e->v.Call.starargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1399 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
1400 if (e->v.Call.kwargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1401 VISIT(st, expr, e->v.Call.kwargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1402 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1403 case Num_kind:
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parents: 57378
diff changeset
1404 case Str_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1405 case Bytes_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1406 case Ellipsis_kind:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1407 /* Nothing to do here. */
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parents: 57378
diff changeset
1408 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1409 /* The following exprs can be assignment targets. */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1410 case Attribute_kind:
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parents: 57378
diff changeset
1411 VISIT(st, expr, e->v.Attribute.value);
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parents: 57378
diff changeset
1412 break;
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parents: 57378
diff changeset
1413 case Subscript_kind:
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parents: 57378
diff changeset
1414 VISIT(st, expr, e->v.Subscript.value);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1415 VISIT(st, slice, e->v.Subscript.slice);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1416 break;
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parents: 57378
diff changeset
1417 case Starred_kind:
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parents: 57378
diff changeset
1418 VISIT(st, expr, e->v.Starred.value);
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parents: 57378
diff changeset
1419 break;
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parents: 57378
diff changeset
1420 case Name_kind:
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parents: 57378
diff changeset
1421 if (!symtable_add_def(st, e->v.Name.id,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1422 e->v.Name.ctx == Load ? USE : DEF_LOCAL))
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parents: 57378
diff changeset
1423 return 0;
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parents: 57378
diff changeset
1424 /* Special-case super: it counts as a use of __class__ */
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parents: 57378
diff changeset
1425 if (e->v.Name.ctx == Load &&
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parents: 57378
diff changeset
1426 st->st_cur->ste_type == FunctionBlock &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1427 !PyUnicode_CompareWithASCIIString(e->v.Name.id, "super")) {
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parents: 57378
diff changeset
1428 if (!GET_IDENTIFIER(__class__) ||
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parents: 57378
diff changeset
1429 !symtable_add_def(st, __class__, USE))
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parents: 57378
diff changeset
1430 return 0;
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parents: 57378
diff changeset
1431 }
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parents: 57378
diff changeset
1432 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1433 /* 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
1434 case List_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1435 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
1436 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1437 case Tuple_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1438 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
1439 break;
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parents: 57378
diff changeset
1440 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1441 return 1;
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1442 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1443
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1444 static int
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1445 symtable_implicit_arg(struct symtable *st, int pos)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1446 {
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1447 PyObject *id = PyUnicode_FromFormat(".%d", pos);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1448 if (id == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1449 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1450 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
1451 Py_DECREF(id);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1452 return 0;
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parents: 57378
diff changeset
1453 }
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parents: 57378
diff changeset
1454 Py_DECREF(id);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1455 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1456 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1457
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1458 static int
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1459 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
1460 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1461 int i;
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parents: 57378
diff changeset
1462
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1463 if (!args)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1464 return -1;
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1465
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1466 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
1467 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
1468 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
1469 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1470 }
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1471
61467
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diff changeset
1472 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1473 }
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1474
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1475 static int
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1476 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
1477 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1478 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1479
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1480 if (!args)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1481 return -1;
41717
9ad84070b22d Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 41699
diff changeset
1482
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1483 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
1484 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
1485 if (arg->annotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1486 VISIT(st, expr, arg->annotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1487 }
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1488
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1489 return 1;
40529
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1490 }
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1491
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1492 static int
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents: 40215
diff changeset
1493 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
1494 {
61467
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parents: 57378
diff changeset
1495 arguments_ty a = s->v.FunctionDef.args;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1496
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1497 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
1498 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1499 if (a->varargannotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1500 VISIT(st, expr, a->varargannotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1501 if (a->kwargannotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1502 VISIT(st, expr, a->kwargannotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1503 if (a->kwonlyargs && !symtable_visit_argannotations(st, a->kwonlyargs))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1504 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1505 if (s->v.FunctionDef.returns)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1506 VISIT(st, expr, s->v.FunctionDef.returns);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1507 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1508 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1509
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1510 static int
35742
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1511 symtable_visit_arguments(struct symtable *st, arguments_ty a)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1512 {
61467
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parents: 57378
diff changeset
1513 /* skip default arguments inside function block
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1514 XXX should ast be different?
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1515 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1516 if (a->args && !symtable_visit_params(st, a->args))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1517 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1518 if (a->kwonlyargs && !symtable_visit_params(st, a->kwonlyargs))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1519 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1520 if (a->vararg) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1521 if (!symtable_add_def(st, a->vararg, DEF_PARAM))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1522 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1523 st->st_cur->ste_varargs = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1524 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1525 if (a->kwarg) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1526 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
1527 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1528 st->st_cur->ste_varkeywords = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1529 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1530 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1531 }
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1532
1c4d192f1568 Merge ast-branch to head
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diff changeset
1533
61467
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diff changeset
1534 static int
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1535 symtable_visit_excepthandler(struct symtable *st, excepthandler_ty eh)
1c4d192f1568 Merge ast-branch to head
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 32121
diff changeset
1536 {
61467
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diff changeset
1537 if (eh->v.ExceptHandler.type)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1538 VISIT(st, expr, eh->v.ExceptHandler.type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1539 if (eh->v.ExceptHandler.name)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
diff changeset
1540 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
1541 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1542 VISIT_SEQ(st, stmt, eh->v.ExceptHandler.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1543 return 1;
35742
1c4d192f1568 Merge ast-branch to head
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diff changeset
1544 }
1c4d192f1568 Merge ast-branch to head
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diff changeset
1545
1c4d192f1568 Merge ast-branch to head
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diff changeset
1546
61467
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diff changeset
1547 static int
35742
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1548 symtable_visit_alias(struct symtable *st, alias_ty a)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1549 {
61467
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diff changeset
1550 /* 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
1551 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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parents: 57378
diff changeset
1552 dotted package name (e.g. spam.eggs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1553 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1554 PyObject *store_name;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1555 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
1556 const Py_UNICODE *base = PyUnicode_AS_UNICODE(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1557 Py_UNICODE *dot = Py_UNICODE_strchr(base, '.');
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1558 if (dot) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1559 store_name = PyUnicode_FromUnicode(base, dot - base);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1560 if (!store_name)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1561 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1562 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1563 else {
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diff changeset
1564 store_name = name;
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diff changeset
1565 Py_INCREF(store_name);
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diff changeset
1566 }
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parents: 57378
diff changeset
1567 if (PyUnicode_CompareWithASCIIString(name, "*")) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1568 int r = symtable_add_def(st, store_name, DEF_IMPORT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1569 Py_DECREF(store_name);
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diff changeset
1570 return r;
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diff changeset
1571 }
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diff changeset
1572 else {
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diff changeset
1573 if (st->st_cur->ste_type != ModuleBlock) {
70919
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Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1574 int lineno = st->st_cur->ste_lineno;
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1575 int col_offset = st->st_cur->ste_col_offset;
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1576 PyErr_SetString(PyExc_SyntaxError, IMPORT_STAR_WARNING);
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1577 PyErr_SyntaxLocationEx(st->st_filename, lineno, col_offset);
275862274567 fix indentation
Benjamin Peterson <benjamin@python.org>
parents: 68257
diff changeset
1578 Py_DECREF(store_name);
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parents: 68257
diff changeset
1579 return 0;
61467
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diff changeset
1580 }
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diff changeset
1581 st->st_cur->ste_unoptimized |= OPT_IMPORT_STAR;
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diff changeset
1582 Py_DECREF(store_name);
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diff changeset
1583 return 1;
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1584 }
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1c4d192f1568 Merge ast-branch to head
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diff changeset
1585 }
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diff changeset
1586
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diff changeset
1587
61467
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diff changeset
1588 static int
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diff changeset
1589 symtable_visit_comprehension(struct symtable *st, comprehension_ty lc)
1c4d192f1568 Merge ast-branch to head
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diff changeset
1590 {
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1591 VISIT(st, expr, lc->target);
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diff changeset
1592 VISIT(st, expr, lc->iter);
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diff changeset
1593 VISIT_SEQ(st, expr, lc->ifs);
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diff changeset
1594 return 1;
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1595 }
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diff changeset
1596
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diff changeset
1597
61467
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diff changeset
1598 static int
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diff changeset
1599 symtable_visit_keyword(struct symtable *st, keyword_ty k)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1600 {
61467
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diff changeset
1601 VISIT(st, expr, k->value);
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diff changeset
1602 return 1;
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1c4d192f1568 Merge ast-branch to head
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1603 }
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diff changeset
1604
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diff changeset
1605
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diff changeset
1606 static int
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diff changeset
1607 symtable_visit_slice(struct symtable *st, slice_ty s)
1c4d192f1568 Merge ast-branch to head
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parents: 32121
diff changeset
1608 {
61467
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diff changeset
1609 switch (s->kind) {
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parents: 57378
diff changeset
1610 case Slice_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1611 if (s->v.Slice.lower)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1612 VISIT(st, expr, s->v.Slice.lower)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1613 if (s->v.Slice.upper)
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diff changeset
1614 VISIT(st, expr, s->v.Slice.upper)
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parents: 57378
diff changeset
1615 if (s->v.Slice.step)
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parents: 57378
diff changeset
1616 VISIT(st, expr, s->v.Slice.step)
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diff changeset
1617 break;
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parents: 57378
diff changeset
1618 case ExtSlice_kind:
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diff changeset
1619 VISIT_SEQ(st, slice, s->v.ExtSlice.dims)
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parents: 57378
diff changeset
1620 break;
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diff changeset
1621 case Index_kind:
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diff changeset
1622 VISIT(st, expr, s->v.Index.value)
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diff changeset
1623 break;
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diff changeset
1624 }
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diff changeset
1625 return 1;
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1c4d192f1568 Merge ast-branch to head
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diff changeset
1626 }
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parents: 32121
diff changeset
1627
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diff changeset
1628 static int
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diff changeset
1629 symtable_handle_comprehension(struct symtable *st, expr_ty e,
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diff changeset
1630 identifier scope_name, asdl_seq *generators,
090588a17490 Merged revisions 56154-56264 via svnmerge from
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diff changeset
1631 expr_ty elt, expr_ty value)
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1c4d192f1568 Merge ast-branch to head
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diff changeset
1632 {
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diff changeset
1633 int is_generator = (e->kind == GeneratorExp_kind);
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diff changeset
1634 int needs_tmp = !is_generator;
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diff changeset
1635 comprehension_ty outermost = ((comprehension_ty)
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diff changeset
1636 asdl_seq_GET(generators, 0));
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diff changeset
1637 /* Outermost iterator is evaluated in current scope */
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diff changeset
1638 VISIT(st, expr, outermost->iter);
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diff changeset
1639 /* Create comprehension scope for the rest */
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diff changeset
1640 if (!scope_name ||
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861c35cef7aa add column offset to all syntax errors
Benjamin Peterson <benjamin@python.org>
parents: 63114
diff changeset
1641 !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
1642 e->lineno, e->col_offset)) {
61467
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diff changeset
1643 return 0;
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parents: 57378
diff changeset
1644 }
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diff changeset
1645 st->st_cur->ste_generator = is_generator;
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parents: 57378
diff changeset
1646 /* Outermost iter is received as an argument */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1647 if (!symtable_implicit_arg(st, 0)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1648 symtable_exit_block(st, (void *)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1649 return 0;
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parents: 57378
diff changeset
1650 }
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parents: 57378
diff changeset
1651 /* Allocate temporary name if needed */
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parents: 57378
diff changeset
1652 if (needs_tmp && !symtable_new_tmpname(st)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1653 symtable_exit_block(st, (void *)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57378
diff changeset
1654 return 0;
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parents: 57378
diff changeset
1655 }
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diff changeset
1656 VISIT_IN_BLOCK(st, expr, outermost->target, (void*)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1657 VISIT_SEQ_IN_BLOCK(st, expr, outermost->ifs, (void*)e);
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diff changeset
1658 VISIT_SEQ_TAIL_IN_BLOCK(st, comprehension,
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diff changeset
1659 generators, 1, (void*)e);
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parents: 57378
diff changeset
1660 if (value)
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parents: 57378
diff changeset
1661 VISIT_IN_BLOCK(st, expr, value, (void*)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1662 VISIT_IN_BLOCK(st, expr, elt, (void*)e);
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diff changeset
1663 return symtable_exit_block(st, (void *)e);
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1c4d192f1568 Merge ast-branch to head
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1664 }
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parents: 41226
diff changeset
1665
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diff changeset
1666 static int
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diff changeset
1667 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
1668 {
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diff changeset
1669 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(genexpr),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1670 e->v.GeneratorExp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1671 e->v.GeneratorExp.elt, NULL);
41464
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parents: 41226
diff changeset
1672 }
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parents: 41226
diff changeset
1673
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diff changeset
1674 static int
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diff changeset
1675 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
1676 {
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diff changeset
1677 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(listcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1678 e->v.ListComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1679 e->v.ListComp.elt, NULL);
41464
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1680 }
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1681
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1682 static int
060c79f6d919 Hide list comp variables and support set comprehensions
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parents: 41226
diff changeset
1683 symtable_visit_setcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents: 41226
diff changeset
1684 {
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diff changeset
1685 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(setcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1686 e->v.SetComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1687 e->v.SetComp.elt, NULL);
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diff changeset
1688 }
42193
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diff changeset
1689
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diff changeset
1690 static int
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diff changeset
1691 symtable_visit_dictcomp(struct symtable *st, expr_ty e)
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diff changeset
1692 {
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1693 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(dictcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1694 e->v.DictComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
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1695 e->v.DictComp.key,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57378
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1696 e->v.DictComp.value);
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Guido van Rossum <guido@python.org>
parents: 42084
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1697 }