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85 lines
3.2 KiB
Python
85 lines
3.2 KiB
Python
# Copyright (c) 2018 by Rocky Bernstein
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from uncompyle6.semantics.pysource import SourceWalker, deparse_code
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import uncompyle6.semantics.fragments as fragments
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# FIXME: does this handle nested code, and lambda properly
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class LineMapWalker(SourceWalker):
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def __init__(self, *args, **kwargs):
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super(LineMapWalker, self).__init__(*args, **kwargs)
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self.source_linemap = {}
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self.current_line_number = 0
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def write(self, *data):
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"""Augment write routine to keep track of current line"""
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for l in data:
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for i in str(l):
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if i == '\n':
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self.current_line_number += 1
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pass
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pass
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pass
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return super(LineMapWalker, self).write(*data)
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def default(self, node):
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"""Augment write default routine to record line number changes"""
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if hasattr(node, 'linestart'):
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if node.linestart:
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self.source_linemap[self.current_line_number] = node.linestart
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return super(LineMapWalker, self).default(node)
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def n_LOAD_CONST(self, node):
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if hasattr(node, 'linestart'):
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if node.linestart:
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self.source_linemap[self.current_line_number] = node.linestart
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return super(LineMapWalker, self).n_LOAD_CONST(node)
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class LineMapFragmentWalker(fragments.FragmentsWalker, LineMapWalker):
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def __init__(self, *args, **kwargs):
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super(LineMapFragmentWalker, self).__init__(*args, **kwargs)
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self.source_linemap = {}
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self.current_line_number = 0
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def deparse_code_with_map(*args, **kwargs):
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"""
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Like deparse_code but saves line number correspondences.
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"""
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kwargs['walker'] = LineMapWalker
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return deparse_code(*args, **kwargs)
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def deparse_code_with_fragments_and_map(*args, **kwargs):
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"""
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Like deparse_code_with_map but saves fragments.
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"""
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kwargs['walker'] = LineMapFragmentWalker
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return fragments.deparse_code(*args, **kwargs)
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if __name__ == '__main__':
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def deparse_test(co):
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"This is a docstring"
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import sys
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sys_version = float(sys.version[0:3])
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# deparsed = deparse_code(sys_version, co, showasm=True, showast=True)
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deparsed = deparse_code_with_map(sys_version, co, showasm=False,
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showast=False,
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showgrammar=False)
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a = 1; b = 2
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print("\n")
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linemap = [(line_no, deparsed.source_linemap[line_no])
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for line_no in
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sorted(deparsed.source_linemap.keys())]
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print(linemap)
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deparsed = deparse_code_with_fragments_and_map(sys_version,
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co, showasm=False,
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showast=False,
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showgrammar=False)
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a = 1; b = 2
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print("\n")
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linemap2 = [(line_no, deparsed.source_linemap[line_no])
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for line_no in
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sorted(deparsed.source_linemap.keys())]
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print(linemap2)
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assert linemap == linemap2
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return
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deparse_test(deparse_test.__code__)
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