extrinsics.py 文件源码

def _walk(node, config, path, parameters):
    if is_ref(node) and node[node.keys()[0]] in parameters:
        node = parameters[node[node.keys()[0]]]

    if isinstance(node, list):
        return [apply_extrinsics(_walk(value, config, path + [i], parameters), config, path + [i], parameters)
                for i, value in enumerate(node)]

    if isinstance(node, collections.Mapping):
        return {key: apply_extrinsics(_walk(value, config, path + [key], parameters), config, path + [key], parameters)
                for key, value in node.iteritems()}

    if isinstance(node, int):
        return node

    if isinstance(node, unicode):
        return node

    raise UnexpectedNodeType(path, node)