41 lines
1 KiB
JavaScript
Executable file
41 lines
1 KiB
JavaScript
Executable file
'use strict';
|
|
|
|
var path = require('path');
|
|
|
|
var loaderUtils = require('loader-utils');
|
|
|
|
var process = require('./process');
|
|
|
|
/**
|
|
* Webpack loader that manipulates the source-map of a preceding loader.
|
|
* @this {object} The loader context
|
|
* @param {string} content The content
|
|
* @param {object} sourceMap The source-map
|
|
* @returns {string|String}
|
|
*/
|
|
function loader(content, sourceMap) {
|
|
/* jshint validthis:true */
|
|
|
|
// loader result is cacheable
|
|
this.cacheable();
|
|
|
|
// webpack 1: prefer loader query, else options object
|
|
// webpack 2: prefer loader options
|
|
// webpack 3: deprecate loader.options object
|
|
// webpack 4: loader.options no longer defined
|
|
var options = Object.assign(
|
|
{},
|
|
this.options && this.options.adjustSourcemapLoader,
|
|
loaderUtils.getOptions(this),
|
|
{sep: path.sep}
|
|
);
|
|
|
|
// process the source-map
|
|
var outputMap = process(this, options, sourceMap);
|
|
|
|
// need to use callback when there are multiple arguments
|
|
this.callback(null, content, outputMap);
|
|
}
|
|
|
|
module.exports = loader;
|