source file: /System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/opcode.py
file stats: 179 lines, 146 executed: 81.6% covered
   1. 
   2. """
   3. opcode module - potentially shared between dis and other modules which
   4. operate on bytecodes (e.g. peephole optimizers).
   5. """
   6. 
   7. __all__ = ["cmp_op", "hasconst", "hasname", "hasjrel", "hasjabs",
   8.            "haslocal", "hascompare", "hasfree", "opname", "opmap",
   9.            "HAVE_ARGUMENT", "EXTENDED_ARG"]
  10. 
  11. cmp_op = ('<', '<=', '==', '!=', '>', '>=', 'in', 'not in', 'is',
  12.         'is not', 'exception match', 'BAD')
  13. 
  14. hasconst = []
  15. hasname = []
  16. hasjrel = []
  17. hasjabs = []
  18. haslocal = []
  19. hascompare = []
  20. hasfree = []
  21. 
  22. opmap = {}
  23. opname = [''] * 256
  24. for op in range(256): opname[op] = '<' + `op` + '>'
  25. del op
  26. 
  27. def def_op(name, op):
  28.     opname[op] = name
  29.     opmap[name] = op
  30. 
  31. def name_op(name, op):
  32.     def_op(name, op)
  33.     hasname.append(op)
  34. 
  35. def jrel_op(name, op):
  36.     def_op(name, op)
  37.     hasjrel.append(op)
  38. 
  39. def jabs_op(name, op):
  40.     def_op(name, op)
  41.     hasjabs.append(op)
  42. 
  43. # Instruction opcodes for compiled code
  44. 
  45. def_op('STOP_CODE', 0)
  46. def_op('POP_TOP', 1)
  47. def_op('ROT_TWO', 2)
  48. def_op('ROT_THREE', 3)
  49. def_op('DUP_TOP', 4)
  50. def_op('ROT_FOUR', 5)
  51. 
  52. def_op('UNARY_POSITIVE', 10)
  53. def_op('UNARY_NEGATIVE', 11)
  54. def_op('UNARY_NOT', 12)
  55. def_op('UNARY_CONVERT', 13)
  56. 
  57. def_op('UNARY_INVERT', 15)
  58. 
  59. def_op('BINARY_POWER', 19)
  60. 
  61. def_op('BINARY_MULTIPLY', 20)
  62. def_op('BINARY_DIVIDE', 21)
  63. def_op('BINARY_MODULO', 22)
  64. def_op('BINARY_ADD', 23)
  65. def_op('BINARY_SUBTRACT', 24)
  66. def_op('BINARY_SUBSCR', 25)
  67. def_op('BINARY_FLOOR_DIVIDE', 26)
  68. def_op('BINARY_TRUE_DIVIDE', 27)
  69. def_op('INPLACE_FLOOR_DIVIDE', 28)
  70. def_op('INPLACE_TRUE_DIVIDE', 29)
  71. 
  72. def_op('SLICE+0', 30)
  73. def_op('SLICE+1', 31)
  74. def_op('SLICE+2', 32)
  75. def_op('SLICE+3', 33)
  76. 
  77. def_op('STORE_SLICE+0', 40)
  78. def_op('STORE_SLICE+1', 41)
  79. def_op('STORE_SLICE+2', 42)
  80. def_op('STORE_SLICE+3', 43)
  81. 
  82. def_op('DELETE_SLICE+0', 50)
  83. def_op('DELETE_SLICE+1', 51)
  84. def_op('DELETE_SLICE+2', 52)
  85. def_op('DELETE_SLICE+3', 53)
  86. 
  87. def_op('INPLACE_ADD', 55)
  88. def_op('INPLACE_SUBTRACT', 56)
  89. def_op('INPLACE_MULTIPLY', 57)
  90. def_op('INPLACE_DIVIDE', 58)
  91. def_op('INPLACE_MODULO', 59)
  92. def_op('STORE_SUBSCR', 60)
  93. def_op('DELETE_SUBSCR', 61)
  94. 
  95. def_op('BINARY_LSHIFT', 62)
  96. def_op('BINARY_RSHIFT', 63)
  97. def_op('BINARY_AND', 64)
  98. def_op('BINARY_XOR', 65)
  99. def_op('BINARY_OR', 66)
 100. def_op('INPLACE_POWER', 67)
 101. def_op('GET_ITER', 68)
 102. 
 103. def_op('PRINT_EXPR', 70)
 104. def_op('PRINT_ITEM', 71)
 105. def_op('PRINT_NEWLINE', 72)
 106. def_op('PRINT_ITEM_TO', 73)
 107. def_op('PRINT_NEWLINE_TO', 74)
 108. def_op('INPLACE_LSHIFT', 75)
 109. def_op('INPLACE_RSHIFT', 76)
 110. def_op('INPLACE_AND', 77)
 111. def_op('INPLACE_XOR', 78)
 112. def_op('INPLACE_OR', 79)
 113. def_op('BREAK_LOOP', 80)
 114. 
 115. def_op('LOAD_LOCALS', 82)
 116. def_op('RETURN_VALUE', 83)
 117. def_op('IMPORT_STAR', 84)
 118. def_op('EXEC_STMT', 85)
 119. def_op('YIELD_VALUE', 86)
 120. 
 121. def_op('POP_BLOCK', 87)
 122. def_op('END_FINALLY', 88)
 123. def_op('BUILD_CLASS', 89)
 124. 
 125. HAVE_ARGUMENT = 90              # Opcodes from here have an argument:
 126. 
 127. name_op('STORE_NAME', 90)       # Index in name list
 128. name_op('DELETE_NAME', 91)      # ""
 129. def_op('UNPACK_SEQUENCE', 92)   # Number of tuple items
 130. jrel_op('FOR_ITER', 93)
 131. 
 132. name_op('STORE_ATTR', 95)       # Index in name list
 133. name_op('DELETE_ATTR', 96)      # ""
 134. name_op('STORE_GLOBAL', 97)     # ""
 135. name_op('DELETE_GLOBAL', 98)    # ""
 136. def_op('DUP_TOPX', 99)          # number of items to duplicate
 137. def_op('LOAD_CONST', 100)       # Index in const list
 138. hasconst.append(100)
 139. name_op('LOAD_NAME', 101)       # Index in name list
 140. def_op('BUILD_TUPLE', 102)      # Number of tuple items
 141. def_op('BUILD_LIST', 103)       # Number of list items
 142. def_op('BUILD_MAP', 104)        # Always zero for now
 143. name_op('LOAD_ATTR', 105)       # Index in name list
 144. def_op('COMPARE_OP', 106)       # Comparison operator
 145. hascompare.append(106)
 146. name_op('IMPORT_NAME', 107)     # Index in name list
 147. name_op('IMPORT_FROM', 108)     # Index in name list
 148. 
 149. jrel_op('JUMP_FORWARD', 110)    # Number of bytes to skip
 150. jrel_op('JUMP_IF_FALSE', 111)   # ""
 151. jrel_op('JUMP_IF_TRUE', 112)    # ""
 152. jabs_op('JUMP_ABSOLUTE', 113)   # Target byte offset from beginning of code
 153. 
 154. name_op('LOAD_GLOBAL', 116)     # Index in name list
 155. 
 156. jabs_op('CONTINUE_LOOP', 119)   # Target address
 157. jrel_op('SETUP_LOOP', 120)      # Distance to target address
 158. jrel_op('SETUP_EXCEPT', 121)    # ""
 159. jrel_op('SETUP_FINALLY', 122)   # ""
 160. 
 161. def_op('LOAD_FAST', 124)        # Local variable number
 162. haslocal.append(124)
 163. def_op('STORE_FAST', 125)       # Local variable number
 164. haslocal.append(125)
 165. def_op('DELETE_FAST', 126)      # Local variable number
 166. haslocal.append(126)
 167. 
 168. def_op('RAISE_VARARGS', 130)    # Number of raise arguments (1, 2, or 3)
 169. def_op('CALL_FUNCTION', 131)    # #args + (#kwargs << 8)
 170. def_op('MAKE_FUNCTION', 132)    # Number of args with default values
 171. def_op('BUILD_SLICE', 133)      # Number of items
 172. 
 173. def_op('MAKE_CLOSURE', 134)
 174. def_op('LOAD_CLOSURE', 135)
 175. hasfree.append(135)
 176. def_op('LOAD_DEREF', 136)
 177. hasfree.append(136)
 178. def_op('STORE_DEREF', 137)
 179. hasfree.append(137)
 180. 
 181. def_op('CALL_FUNCTION_VAR', 140)     # #args + (#kwargs << 8)
 182. def_op('CALL_FUNCTION_KW', 141)      # #args + (#kwargs << 8)
 183. def_op('CALL_FUNCTION_VAR_KW', 142)  # #args + (#kwargs << 8)
 184. 
 185. def_op('EXTENDED_ARG', 143)
 186. EXTENDED_ARG = 143
 187. 
 188. del def_op, name_op, jrel_op, jabs_op