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82 lines
2.2 KiB
Python
82 lines
2.2 KiB
Python
# (C) Copyright 2016 by Rocky Bernstein
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"""
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CPython 3.5 bytecode opcodes
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used in scanner (bytecode disassembly) and parser (Python grammar)
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This is a superset of Python 3.5's opcode.py with some opcodes that simplify
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parsing and semantic interpretation.
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"""
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from copy import deepcopy
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import uncompyle6.opcodes.opcode_3x as opcode_3x
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from uncompyle6.opcodes.opcode_3x import fields2copy, hasfree, rm_op
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# FIXME: can we DRY this even more?
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opmap = {}
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opname = [''] * 256
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hasconst = []
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hasjrel = []
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hasjabs = []
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def def_op(name, op):
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opname[op] = name
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opmap[name] = op
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for object in fields2copy:
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globals()[object] = deepcopy(getattr(opcode_3x, object))
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# Below are opcodes changes since Python 3.2
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rm_op(opname, opmap, 'STOP_CODE', 0)
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rm_op(opname, opmap, 'STORE_LOCALS', 69)
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# These are new since Python 3.3
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def_op('YIELD_FROM', 72)
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def_op('LOAD_CLASSDEREF', 148)
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# These are new since Python 3.4
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def_op('BINARY_MATRIX_MULTIPLY', 16)
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def_op('INPLACE_MATRIX_MULTIPLY', 17)
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def_op('GET_AITER', 50)
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def_op('GET_ANEXT', 51)
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def_op('BEFORE_ASYNC_WITH', 52)
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def_op('GET_YIELD_FROM_ITER', 69)
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def_op('GET_AWAITABLE', 73)
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def_op('WITH_CLEANUP_START', 81)
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def_op('WITH_CLEANUP_FINISH', 82)
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def_op('BUILD_LIST_UNPACK', 149)
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def_op('BUILD_MAP_UNPACK', 150)
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def_op('BUILD_MAP_UNPACK_WITH_CALL', 151)
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def_op('BUILD_TUPLE_UNPACK', 152)
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def_op('BUILD_SET_UNPACK', 153)
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def_op('SETUP_ASYNC_WITH', 154)
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hasfree.append(148)
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def updateGlobal():
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# JUMP_OPs are used in verification are set in the scanner
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# and used in the parser grammar
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globals().update({'PJIF': opmap['POP_JUMP_IF_FALSE']})
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globals().update({'PJIT': opmap['POP_JUMP_IF_TRUE']})
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globals().update({'JA': opmap['JUMP_ABSOLUTE']})
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globals().update({'JF': opmap['JUMP_FORWARD']})
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globals().update(dict([(k.replace('+', '_'), v) for (k, v) in opmap.items()]))
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globals().update({'JUMP_OPs': map(lambda op: opname[op], hasjrel + hasjabs)})
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updateGlobal()
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# FIXME: turn into pytest test
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from uncompyle6 import PYTHON_VERSION
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if PYTHON_VERSION == 3.5:
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import dis
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for item in dis.opmap.items():
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if item not in opmap.items():
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print(item)
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assert all(item in opmap.items() for item in dis.opmap.items())
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# opcode_3x.dump_opcodes(opmap)
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