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42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
# Copyright (c) 2019, 2021 by Rocky Bernstein
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"""
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Python 1.6 bytecode decompiler massaging.
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This massages tokenized 1.6 bytecode to make it more amenable for
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grammar parsing.
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"""
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import uncompyle6.scanners.scanner21 as scan
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# from uncompyle6.scanners.scanner26 import ingest as ingest26
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# bytecode verification, verify(), uses JUMP_OPs from here
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from xdis.opcodes import opcode_16
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JUMP_OPS = opcode_16.JUMP_OPS
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# We base this off of 2.2 instead of the other way around
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# because we cleaned things up this way.
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# The history is that 2.7 support is the cleanest,
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# then from that we got 2.6 and so on.
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class Scanner16(scan.Scanner21):
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def __init__(self, show_asm=False):
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scan.Scanner21.__init__(self, show_asm)
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self.opc = opcode_16
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self.opname = opcode_16.opname
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self.version = (1, 6)
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self.genexpr_name = '<generator expression>'
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return
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def ingest(self, co, classname=None, code_objects={}, show_asm=None):
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"""
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Pick out tokens from an uncompyle6 code object, and transform them,
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returning a list of uncompyle6 Token's.
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The transformations are made to assist the deparsing grammar.
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"""
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tokens, customize = scan.Scanner21.ingest(self, co, classname, code_objects, show_asm)
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for t in tokens:
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if t.op == self.opc.UNPACK_LIST:
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t.kind = 'UNPACK_LIST_%d' % t.attr
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pass
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return tokens, customize
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