49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
/**
|
|
* Copyright (c) 2015-present, 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.
|
|
*
|
|
* @providesModule loadSourceMap
|
|
* @flow
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
var Promise = require('Promise');
|
|
var RCTSourceCode = require('NativeModules').SourceCode;
|
|
var SourceMapConsumer = require('SourceMap').SourceMapConsumer;
|
|
var SourceMapURL = require('./source-map-url');
|
|
|
|
var fetch = require('fetch');
|
|
|
|
function loadSourceMap(): Promise {
|
|
return fetchSourceMap()
|
|
.then(map => new SourceMapConsumer(map));
|
|
}
|
|
|
|
function fetchSourceMap(): Promise {
|
|
if (global.RAW_SOURCE_MAP) {
|
|
return Promise.resolve(global.RAW_SOURCE_MAP);
|
|
}
|
|
|
|
if (!RCTSourceCode) {
|
|
return Promise.reject(new Error('RCTSourceCode module is not available'));
|
|
}
|
|
|
|
return new Promise(RCTSourceCode.getScriptText)
|
|
.then(extractSourceMapURL)
|
|
.then(fetch)
|
|
.then(response => response.text())
|
|
}
|
|
|
|
function extractSourceMapURL({url, text}): string {
|
|
var mapURL = SourceMapURL.getFrom(text);
|
|
var baseURL = url.match(/(.+:\/\/.*?)\//)[1];
|
|
return baseURL + mapURL;
|
|
}
|
|
|
|
module.exports = loadSourceMap;
|