graph_visitor.py 文件源码

def visitAssign(self, node):
        nodes = self.visit(node.value)

        tsymols = get_symbols(node, _ast.Store)
        re_defined = tsymols.intersection(set(self.graph.nodes()))
        if re_defined:
            add_edges(self.graph, re_defined, re_defined)

        targets = set()
        for target in node.targets:
            targets.update(self.visit(target))

        add_edges(self.graph, targets, nodes)

        return targets | nodes