Method _find_var_recursive

python/paddle/base/framework.py:4528–4562

Get a Variable by name from this block recursively. Args: name(str): the Variable's name. Returns: Variable: the Variable with the giving name. Or None if not found.

(self, name)

        return v

    def _find_var_recursive(self, name):
        """
        Get a Variable by name from this block recursively.

        Args:
            name(str): the Variable's name.

        Returns:
            Variable: the Variable with the giving name. Or None if not found.
        """
        frontier = []
        visited = set()

        frontier.append(self)

        prog = self.program

        while len(frontier) != 0:  # BFS
            cur = frontier[0]
            frontier = frontier[1:]

            if id(cur) in visited:
                continue

            if cur.has_var(name):
                return cur.var(name)

            if cur.parent_idx != -1:
                frontier.append(prog.block(cur.parent_idx))

            if cur.forward_block_idx != -1:
                frontier.append(prog.block(cur.forward_block_idx))

            visited.add(id(cur))
        return None

    def _var_recursive(self, name):
        """