Mercurial > cpython-lru_cache-weakref

annotate Lib/opcode.py @ 49955:878d40468c4e legacy-trunk

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Issue #4384: Added logging integration with warnings module using captureWarnings(). This change includes a NullHandler which does nothing; it will be of use to library developers who want to avoid the "No handlers could be found for logger XXX" message which can appear if the library user doesn't configure logging.
author Vinay Sajip <vinay_sajip@yahoo.co.uk>
date Wed, 03 Dec 2008 23:22:58 +0000
parents 7ac117b3be37
children 94e79d78dff0
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1
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2 """
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3 opcode module - potentially shared between dis and other modules which
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4 operate on bytecodes (e.g. peephole optimizers).
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5 """
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6
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7 __all__ = ["cmp_op", "hasconst", "hasname", "hasjrel", "hasjabs",
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8 "haslocal", "hascompare", "hasfree", "opname", "opmap",
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9 "HAVE_ARGUMENT", "EXTENDED_ARG"]
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10
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11 cmp_op = ('<', '<=', '==', '!=', '>', '>=', 'in', 'not in', 'is',
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12 'is not', 'exception match', 'BAD')
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13
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14 hasconst = []
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15 hasname = []
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16 hasjrel = []
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17 hasjabs = []
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18 haslocal = []
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19 hascompare = []
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20 hasfree = []
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21
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22 opmap = {}
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23 opname = [''] * 256
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24 for op in range(256): opname[op] = '<%r>' % (op,)
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25 del op
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27 def def_op(name, op):
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28 opname[op] = name
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29 opmap[name] = op
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31 def name_op(name, op):
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32 def_op(name, op)
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33 hasname.append(op)
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34
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35 def jrel_op(name, op):
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36 def_op(name, op)
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37 hasjrel.append(op)
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39 def jabs_op(name, op):
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40 def_op(name, op)
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41 hasjabs.append(op)
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42
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43 # Instruction opcodes for compiled code
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44 # Blank lines correspond to available opcodes
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45
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46 def_op('STOP_CODE', 0)
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47 def_op('POP_TOP', 1)
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48 def_op('ROT_TWO', 2)
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49 def_op('ROT_THREE', 3)
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50 def_op('DUP_TOP', 4)
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51 def_op('ROT_FOUR', 5)
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52
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53 def_op('NOP', 9)
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54 def_op('UNARY_POSITIVE', 10)
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55 def_op('UNARY_NEGATIVE', 11)
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56 def_op('UNARY_NOT', 12)
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57 def_op('UNARY_CONVERT', 13)
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58
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59 def_op('UNARY_INVERT', 15)
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60
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61 def_op('LIST_APPEND', 18)
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62 def_op('BINARY_POWER', 19)
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63 def_op('BINARY_MULTIPLY', 20)
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64 def_op('BINARY_DIVIDE', 21)
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65 def_op('BINARY_MODULO', 22)
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66 def_op('BINARY_ADD', 23)
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67 def_op('BINARY_SUBTRACT', 24)
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68 def_op('BINARY_SUBSCR', 25)
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69 def_op('BINARY_FLOOR_DIVIDE', 26)
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70 def_op('BINARY_TRUE_DIVIDE', 27)
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71 def_op('INPLACE_FLOOR_DIVIDE', 28)
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72 def_op('INPLACE_TRUE_DIVIDE', 29)
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73 def_op('SLICE+0', 30)
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74 def_op('SLICE+1', 31)
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75 def_op('SLICE+2', 32)
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76 def_op('SLICE+3', 33)
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77
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78 def_op('STORE_SLICE+0', 40)
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79 def_op('STORE_SLICE+1', 41)
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80 def_op('STORE_SLICE+2', 42)
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81 def_op('STORE_SLICE+3', 43)
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82
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83 def_op('DELETE_SLICE+0', 50)
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84 def_op('DELETE_SLICE+1', 51)
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85 def_op('DELETE_SLICE+2', 52)
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86 def_op('DELETE_SLICE+3', 53)
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87
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88 def_op('STORE_MAP', 54)
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89 def_op('INPLACE_ADD', 55)
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90 def_op('INPLACE_SUBTRACT', 56)
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91 def_op('INPLACE_MULTIPLY', 57)
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92 def_op('INPLACE_DIVIDE', 58)
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93 def_op('INPLACE_MODULO', 59)
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94 def_op('STORE_SUBSCR', 60)
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95 def_op('DELETE_SUBSCR', 61)
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96 def_op('BINARY_LSHIFT', 62)
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97 def_op('BINARY_RSHIFT', 63)
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98 def_op('BINARY_AND', 64)
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99 def_op('BINARY_XOR', 65)
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100 def_op('BINARY_OR', 66)
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101 def_op('INPLACE_POWER', 67)
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102 def_op('GET_ITER', 68)
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103
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104 def_op('PRINT_EXPR', 70)
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105 def_op('PRINT_ITEM', 71)
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106 def_op('PRINT_NEWLINE', 72)
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107 def_op('PRINT_ITEM_TO', 73)
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108 def_op('PRINT_NEWLINE_TO', 74)
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109 def_op('INPLACE_LSHIFT', 75)
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110 def_op('INPLACE_RSHIFT', 76)
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111 def_op('INPLACE_AND', 77)
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112 def_op('INPLACE_XOR', 78)
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113 def_op('INPLACE_OR', 79)
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114 def_op('BREAK_LOOP', 80)
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115 def_op('WITH_CLEANUP', 81)
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116 def_op('LOAD_LOCALS', 82)
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117 def_op('RETURN_VALUE', 83)
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118 def_op('IMPORT_STAR', 84)
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119 def_op('EXEC_STMT', 85)
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120 def_op('YIELD_VALUE', 86)
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121 def_op('POP_BLOCK', 87)
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122 def_op('END_FINALLY', 88)
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123 def_op('BUILD_CLASS', 89)
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124
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125 HAVE_ARGUMENT = 90 # Opcodes from here have an argument:
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126
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127 name_op('STORE_NAME', 90) # Index in name list
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128 name_op('DELETE_NAME', 91) # ""
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129 def_op('UNPACK_SEQUENCE', 92) # Number of tuple items
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130 jrel_op('FOR_ITER', 93)
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131
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132 name_op('STORE_ATTR', 95) # Index in name list
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133 name_op('DELETE_ATTR', 96) # ""
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134 name_op('STORE_GLOBAL', 97) # ""
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135 name_op('DELETE_GLOBAL', 98) # ""
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136 def_op('DUP_TOPX', 99) # number of items to duplicate
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137 def_op('LOAD_CONST', 100) # Index in const list
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138 hasconst.append(100)
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139 name_op('LOAD_NAME', 101) # Index in name list
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140 def_op('BUILD_TUPLE', 102) # Number of tuple items
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141 def_op('BUILD_LIST', 103) # Number of list items
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7ac117b3be37 Give meaning to the oparg for BUILD_MAP: estimated size of the dictionary.
Raymond Hettinger <python@rcn.com>
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142 def_op('BUILD_MAP', 104) # Number of dict entries (upto 255)
28091
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143 name_op('LOAD_ATTR', 105) # Index in name list
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144 def_op('COMPARE_OP', 106) # Comparison operator
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Skip Montanaro <skip@pobox.com>
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145 hascompare.append(106)
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146 name_op('IMPORT_NAME', 107) # Index in name list
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147 name_op('IMPORT_FROM', 108) # Index in name list
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148
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149 jrel_op('JUMP_FORWARD', 110) # Number of bytes to skip
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150 jrel_op('JUMP_IF_FALSE', 111) # ""
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151 jrel_op('JUMP_IF_TRUE', 112) # ""
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152 jabs_op('JUMP_ABSOLUTE', 113) # Target byte offset from beginning of code
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153
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154 name_op('LOAD_GLOBAL', 116) # Index in name list
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155
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156 jabs_op('CONTINUE_LOOP', 119) # Target address
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157 jrel_op('SETUP_LOOP', 120) # Distance to target address
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158 jrel_op('SETUP_EXCEPT', 121) # ""
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159 jrel_op('SETUP_FINALLY', 122) # ""
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160
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161 def_op('LOAD_FAST', 124) # Local variable number
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162 haslocal.append(124)
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163 def_op('STORE_FAST', 125) # Local variable number
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164 haslocal.append(125)
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165 def_op('DELETE_FAST', 126) # Local variable number
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166 haslocal.append(126)
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167
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168 def_op('RAISE_VARARGS', 130) # Number of raise arguments (1, 2, or 3)
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169 def_op('CALL_FUNCTION', 131) # #args + (#kwargs << 8)
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170 def_op('MAKE_FUNCTION', 132) # Number of args with default values
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171 def_op('BUILD_SLICE', 133) # Number of items
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172 def_op('MAKE_CLOSURE', 134)
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Skip Montanaro <skip@pobox.com>
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173 def_op('LOAD_CLOSURE', 135)
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174 hasfree.append(135)
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175 def_op('LOAD_DEREF', 136)
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176 hasfree.append(136)
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177 def_op('STORE_DEREF', 137)
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178 hasfree.append(137)
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179
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180 def_op('CALL_FUNCTION_VAR', 140) # #args + (#kwargs << 8)
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181 def_op('CALL_FUNCTION_KW', 141) # #args + (#kwargs << 8)
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182 def_op('CALL_FUNCTION_VAR_KW', 142) # #args + (#kwargs << 8)
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Skip Montanaro <skip@pobox.com>
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183 def_op('EXTENDED_ARG', 143)
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Skip Montanaro <skip@pobox.com>
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184 EXTENDED_ARG = 143
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185
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186 del def_op, name_op, jrel_op, jabs_op