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