pdf.js/systemjs.config.js
Rob Wu d253889d97 __non_webpack_require__ -> require in SystemJS
When running browser tests, e.g. via `gulp unittest`, the test files are not
processed by babel, and neither by the "unittestcli" gulp target.

This commit copies the babelPluginReplaceNonWebPackRequire plugin from the
unittestcli target to the SystemJS config so that `__non_webpack_require__` is
replaced with `require` for all build targets, and adds a unit test to ensure
that this indeed works as expected.
2017-08-15 12:14:30 +02:00

91 lines
3.1 KiB
JavaScript

/* Copyright 2017 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
(function () {
var baseLocation;
if (typeof document !== 'undefined') {
baseLocation = new URL('./', document.currentScript.src);
} else if (typeof location !== 'undefined') {
// Probably worker -- walking subfolders until we will reach root.
baseLocation = location;
while (baseLocation.href.includes('/src/')) {
baseLocation = new URL('..', baseLocation);
}
} else {
throw new Error('Cannot configure SystemJS');
}
var PluginBabelPath = 'node_modules/systemjs-plugin-babel/plugin-babel.js';
var SystemJSPluginBabelPath =
'node_modules/systemjs-plugin-babel/systemjs-babel-browser.js';
var PluginBabelCachePath = 'external/systemjs/plugin-babel-cached.js';
var isCachingPossible = typeof indexedDB !== 'undefined' &&
typeof TextEncoder !== 'undefined' &&
typeof crypto !== 'undefined' &&
typeof crypto.subtle !== 'undefined';
// When we create a bundle, webpack is run on the source and it will replace
// require with __webpack_require__. When we want to use the real require,
// __non_webpack_require__ has to be used.
// In this target, we don't create a bundle, so we have to replace the
// occurences of __non_webpack_require__ ourselves.
function babelPluginReplaceNonWebPackRequire(babel) {
return {
visitor: {
Identifier(path, state) {
if (path.node.name === '__non_webpack_require__') {
path.replaceWith(babel.types.identifier('require'));
}
},
},
};
}
SystemJS.config({
packages: {
'': {
defaultExtension: 'js',
},
},
paths: {
'pdfjs': new URL('src', baseLocation).href,
'pdfjs-web': new URL('web', baseLocation).href,
'pdfjs-test': new URL('test', baseLocation).href,
'pdfjs-lib': new URL('src/pdf', baseLocation).href,
'core-js': new URL('node_modules/core-js', baseLocation).href,
},
meta: {
'*': {
scriptLoad: false,
esModule: true,
babelOptions: {
es2015: false,
plugins: [babelPluginReplaceNonWebPackRequire],
},
},
},
map: {
'plugin-babel': new URL(PluginBabelPath, baseLocation).href,
'systemjs-babel-build':
new URL(SystemJSPluginBabelPath, baseLocation).href,
'plugin-babel-cached': new URL(PluginBabelCachePath, baseLocation).href,
},
transpiler: isCachingPossible ? 'plugin-babel-cached' : 'plugin-babel',
});
})();