react-docgen/dist/utils/getMemberExpressionRoot.js

A CLI and toolkit to extract information from React components for documentation generation.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = getMemberExpressionRoot;

var _recast = _interopRequireDefault(require("recast"));

/*
 * Copyright (c) 2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * 
 */
const types = _recast.default.types.namedTypes;
/**
 * Returns the path to the first part of the MemberExpression. I.e. given a
 * path representing
 *
 * foo.bar.baz
 *
 * it returns the path of/to `foo`.
 */

function getMemberExpressionRoot(memberExpressionPath) {
  do {
    memberExpressionPath = memberExpressionPath.get('object');
  } while (types.MemberExpression.check(memberExpressionPath.node));

  return memberExpressionPath;
}