react-native/Libraries/Utilities/JSDevSupportModule.js

26 lines
738 B
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @providesModule JSDevSupportModule
* @flow
*/
'use strict';
var JSDevSupportModule = {
getJSHierarchy: function (tag: string) {
const hook = window.__REACT_DEVTOOLS_GLOBAL_HOOK__;
const renderers = hook._renderers;
const keys = Object.keys(renderers);
const renderer = renderers[keys[0]];
var result = renderer.getInspectorDataForViewTag(tag);
var path = result.hierarchy.map( (item) => item.name).join(' -> ');
require('NativeModules').JSDevSupport.setResult(path, null);
},
};
module.exports = JSDevSupportModule;