FunctionMatrix.py 文件源码

python
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项目:IDAPython-Scripts 作者: razygon 项目源码 文件源码
def _feature_loopcount(self, f_ea):
        '''
        Generate a block graph, then get loopcount via DiGraph.number_of_selfloops()

        prior feature: Null
        '''
        DEBUG_PRINT( 'feature_loopcount' + hex(f_ea))
        loopcount = 0
        mloops = set()
#         loops = map(lambda loop: sorted(loop),nx.simple_cycles(self.ftable["dg"]))
#         sorted too slow, use min instead
        self.loops = {}
        self.loops = simple_cycles(self.ftable["dg"])
#         if loops is None:
#             return 0
# #         mloops = map(lambda loop : min(loop), loops)
# #         loopcount = len(sets(mloops))
#         for loop in loops:
#             mloop = min(loop)
#             mloops.add(mloop)
#         loopcount = len(mloops)
        loopcount = len(self.loops)
        return loopcount
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