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[swfinterp] Allow function patching
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@ -150,6 +150,7 @@ def _read_byte(reader):
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class SWFInterpreter(object):
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class SWFInterpreter(object):
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def __init__(self, file_contents):
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def __init__(self, file_contents):
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self._patched_functions = {}
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code_tag = next(tag
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code_tag = next(tag
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for tag_code, tag in _extract_tags(file_contents)
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for tag_code, tag in _extract_tags(file_contents)
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if tag_code == 82)
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if tag_code == 82)
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@ -354,6 +355,9 @@ def parse_traits_info():
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assert p + code_reader.tell() == len(code_tag)
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assert p + code_reader.tell() == len(code_tag)
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def patch_function(self, avm_class, func_name, f):
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self._patched_functions[(avm_class, func_name)] = f
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def extract_class(self, class_name):
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def extract_class(self, class_name):
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try:
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try:
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return self._classes_by_name[class_name]
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return self._classes_by_name[class_name]
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@ -361,6 +365,9 @@ def extract_class(self, class_name):
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raise ExtractorError('Class %r not found' % class_name)
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raise ExtractorError('Class %r not found' % class_name)
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def extract_function(self, avm_class, func_name):
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def extract_function(self, avm_class, func_name):
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p = self._patched_functions.get((avm_class, func_name))
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if p:
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return p
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if func_name in avm_class.method_pyfunctions:
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if func_name in avm_class.method_pyfunctions:
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return avm_class.method_pyfunctions[func_name]
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return avm_class.method_pyfunctions[func_name]
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if func_name in self._classes_by_name:
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if func_name in self._classes_by_name:
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