_dagcircuit.py 文件源码

def remove_ancestors_of(self, node):
        """Remove all of the ancestor operation nodes of node."""
        anc = nx.ancestors(self.multi_graph, node)
        # TODO: probably better to do all at once using
        # multi_graph.remove_nodes_from; same for related functions ...
        for n in anc:
            nd = self.multi_graph.node[n]
            if nd["type"] == "op":
                self._remove_op_node(n)