react-native/Libraries/Utilities/JSDevSupportModule.js

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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow strict-local
*/
'use strict';
const JSDevSupport = require('NativeModules').JSDevSupport;
const ReactNative = require('ReactNative');
const JSDevSupportModule = {
getJSHierarchy: function(tag: number) {
try {
const {
computeComponentStackForErrorReporting,
} = ReactNative.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
const componentStack = computeComponentStackForErrorReporting(tag);
if (!componentStack) {
JSDevSupport.onFailure(
JSDevSupport.ERROR_CODE_VIEW_NOT_FOUND,
"Component stack doesn't exist for tag " + tag,
);
} else {
JSDevSupport.onSuccess(componentStack);
}
} catch (e) {
JSDevSupport.onFailure(JSDevSupport.ERROR_CODE_EXCEPTION, e.message);
}
},
};
module.exports = JSDevSupportModule;