/Lib/opcode.py

http://unladen-swallow.googlecode.com/ · Python · 195 lines · 150 code · 28 blank · 17 comment · 1 complexity · 0b280fef8564336c2857621f42f15d7d MD5 · raw file

  1. """
  2. opcode module - potentially shared between dis and other modules which
  3. operate on bytecodes (e.g. peephole optimizers).
  4. """
  5. __all__ = ["cmp_op", "hasconst", "hasname", "hasjrel", "hasjabs",
  6. "haslocal", "hascompare", "hasfree", "opname", "opmap",
  7. "HAVE_ARGUMENT", "EXTENDED_ARG"]
  8. cmp_op = ('<', '<=', '==', '!=', '>', '>=', 'in', 'not in', 'is',
  9. 'is not', 'exception match', 'BAD')
  10. hasconst = []
  11. hasname = []
  12. hasjrel = []
  13. hasjabs = []
  14. haslocal = []
  15. hascompare = []
  16. hasfree = []
  17. opmap = {}
  18. opname = [''] * 256
  19. for op in range(256): opname[op] = '<%r>' % (op,)
  20. del op
  21. def def_op(name, op):
  22. opname[op] = name
  23. opmap[name] = op
  24. def name_op(name, op):
  25. def_op(name, op)
  26. hasname.append(op)
  27. def jrel_op(name, op):
  28. def_op(name, op)
  29. hasjrel.append(op)
  30. def jabs_op(name, op):
  31. def_op(name, op)
  32. hasjabs.append(op)
  33. # Instruction opcodes for compiled code
  34. # Blank lines correspond to available opcodes
  35. def_op('STOP_CODE', 0)
  36. def_op('POP_TOP', 1)
  37. def_op('ROT_TWO', 2)
  38. def_op('ROT_THREE', 3)
  39. def_op('DUP_TOP', 4)
  40. def_op('ROT_FOUR', 5)
  41. def_op('NOP', 9)
  42. def_op('UNARY_POSITIVE', 10)
  43. def_op('UNARY_NEGATIVE', 11)
  44. def_op('UNARY_NOT', 12)
  45. def_op('UNARY_CONVERT', 13)
  46. def_op('UNARY_INVERT', 15)
  47. def_op('DUP_TOP_TWO', 16)
  48. def_op('DUP_TOP_THREE', 17)
  49. def_op('LIST_APPEND', 18)
  50. def_op('BINARY_POWER', 19)
  51. def_op('BINARY_MULTIPLY', 20)
  52. def_op('BINARY_DIVIDE', 21)
  53. def_op('BINARY_MODULO', 22)
  54. def_op('BINARY_ADD', 23)
  55. def_op('BINARY_SUBTRACT', 24)
  56. def_op('BINARY_SUBSCR', 25)
  57. def_op('BINARY_FLOOR_DIVIDE', 26)
  58. def_op('BINARY_TRUE_DIVIDE', 27)
  59. def_op('INPLACE_FLOOR_DIVIDE', 28)
  60. def_op('INPLACE_TRUE_DIVIDE', 29)
  61. def_op('SLICE_NONE', 30)
  62. def_op('SLICE_LEFT', 31)
  63. def_op('SLICE_RIGHT', 32)
  64. def_op('SLICE_BOTH', 33)
  65. def_op('RAISE_VARARGS_ZERO', 34)
  66. def_op('RAISE_VARARGS_ONE', 35)
  67. def_op('RAISE_VARARGS_TWO', 36)
  68. def_op('RAISE_VARARGS_THREE', 37)
  69. def_op('BUILD_SLICE_TWO', 38)
  70. def_op('BUILD_SLICE_THREE', 39)
  71. def_op('STORE_SLICE_NONE', 40)
  72. def_op('STORE_SLICE_LEFT', 41)
  73. def_op('STORE_SLICE_RIGHT', 42)
  74. def_op('STORE_SLICE_BOTH', 43)
  75. def_op('DELETE_SLICE_NONE', 50)
  76. def_op('DELETE_SLICE_LEFT', 51)
  77. def_op('DELETE_SLICE_RIGHT', 52)
  78. def_op('DELETE_SLICE_BOTH', 53)
  79. def_op('STORE_MAP', 54)
  80. def_op('INPLACE_ADD', 55)
  81. def_op('INPLACE_SUBTRACT', 56)
  82. def_op('INPLACE_MULTIPLY', 57)
  83. def_op('INPLACE_DIVIDE', 58)
  84. def_op('INPLACE_MODULO', 59)
  85. def_op('STORE_SUBSCR', 60)
  86. def_op('DELETE_SUBSCR', 61)
  87. def_op('BINARY_LSHIFT', 62)
  88. def_op('BINARY_RSHIFT', 63)
  89. def_op('BINARY_AND', 64)
  90. def_op('BINARY_XOR', 65)
  91. def_op('BINARY_OR', 66)
  92. def_op('INPLACE_POWER', 67)
  93. def_op('GET_ITER', 68)
  94. # def_op('PRINT_EXPR', 70) Replaced with the #@displayhook function.
  95. # def_op('PRINT_ITEM', 71) Other PRINT_* opcodes replaced by #@print_stmt().
  96. # def_op('PRINT_NEWLINE', 72)
  97. # def_op('PRINT_ITEM_TO', 73)
  98. # def_op('PRINT_NEWLINE_TO', 74)
  99. def_op('INPLACE_LSHIFT', 75)
  100. def_op('INPLACE_RSHIFT', 76)
  101. def_op('INPLACE_AND', 77)
  102. def_op('INPLACE_XOR', 78)
  103. def_op('INPLACE_OR', 79)
  104. def_op('BREAK_LOOP', 80)
  105. def_op('WITH_CLEANUP', 81)
  106. # def_op('LOAD_LOCALS', 82) Replaced with a function call to #@locals.
  107. def_op('RETURN_VALUE', 83)
  108. # def_op('IMPORT_STAR', 84) Replaced with a function call to #@import_star.
  109. # def_op('EXEC_STMT', 85) Replaced with a function call to #@exec.
  110. def_op('YIELD_VALUE', 86)
  111. def_op('POP_BLOCK', 87)
  112. def_op('END_FINALLY', 88)
  113. # def_op('BUILD_CLASS', xxx) Replaced with a function call to #@buildclass.
  114. def_op('IMPORT_NAME', 89)
  115. HAVE_ARGUMENT = 90 # Opcodes from here have an argument:
  116. name_op('STORE_NAME', 90) # Index in name list
  117. name_op('DELETE_NAME', 91) # ""
  118. def_op('UNPACK_SEQUENCE', 92) # Number of tuple items
  119. jrel_op('FOR_ITER', 93)
  120. name_op('STORE_ATTR', 95) # Index in name list
  121. name_op('DELETE_ATTR', 96) # ""
  122. name_op('STORE_GLOBAL', 97) # ""
  123. name_op('DELETE_GLOBAL', 98) # ""
  124. def_op('LOAD_CONST', 100) # Index in const list
  125. hasconst.append(100)
  126. name_op('LOAD_NAME', 101) # Index in name list
  127. def_op('BUILD_TUPLE', 102) # Number of tuple items
  128. def_op('BUILD_LIST', 103) # Number of list items
  129. def_op('BUILD_MAP', 104) # Number of dict entries (upto 255)
  130. name_op('LOAD_ATTR', 105) # Index in name list
  131. def_op('COMPARE_OP', 106) # Comparison operator
  132. hascompare.append(106)
  133. # name_op('IMPORT_FROM', 108) # Replaced by #@import_from.
  134. name_op('LOAD_METHOD', 109) # Index in name list
  135. jrel_op('JUMP_FORWARD', 110) # Number of bytes to skip
  136. jabs_op('JUMP_IF_FALSE_OR_POP', 111) # Target byte offset from beginning of code
  137. jabs_op('JUMP_IF_TRUE_OR_POP', 112) # ""
  138. jabs_op('JUMP_ABSOLUTE', 113) # ""
  139. jabs_op('POP_JUMP_IF_FALSE', 114) # ""
  140. jabs_op('POP_JUMP_IF_TRUE', 115) # ""
  141. name_op('LOAD_GLOBAL', 116) # Index in name list
  142. jabs_op('CONTINUE_LOOP', 119) # Target address
  143. jrel_op('SETUP_LOOP', 120) # Distance to target address
  144. jrel_op('SETUP_EXCEPT', 121) # ""
  145. jrel_op('SETUP_FINALLY', 122) # ""
  146. def_op('LOAD_FAST', 124) # Local variable number
  147. haslocal.append(124)
  148. def_op('STORE_FAST', 125) # Local variable number
  149. haslocal.append(125)
  150. def_op('DELETE_FAST', 126) # Local variable number
  151. haslocal.append(126)
  152. def_op('CALL_FUNCTION', 131) # #args + (#kwargs << 8)
  153. # def_op('MAKE_FUNCTION', 132) Replaced by #@make_function calls.
  154. def_op('CALL_METHOD', 133) # #args + (#kwargs << 8)
  155. def_op('MAKE_CLOSURE', 134)
  156. def_op('LOAD_CLOSURE', 135)
  157. hasfree.append(135)
  158. def_op('LOAD_DEREF', 136)
  159. hasfree.append(136)
  160. def_op('STORE_DEREF', 137)
  161. hasfree.append(137)
  162. def_op('CALL_FUNCTION_VAR', 140) # #args + (#kwargs << 8)
  163. def_op('CALL_FUNCTION_KW', 141) # #args + (#kwargs << 8)
  164. def_op('CALL_FUNCTION_VAR_KW', 142) # #args + (#kwargs << 8)
  165. def_op('EXTENDED_ARG', 143)
  166. EXTENDED_ARG = 143
  167. del def_op, name_op, jrel_op, jabs_op