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"use strict";
function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } function _next(value) { step("next", value); } function _throw(err) { step("throw", err); } _next(); }); }; }
const babel = require("@babel/core");
const pkg = require("../package.json");
const cache = require("./cache");
const transform = require("./transform");
const relative = require("./utils/relative");
const loaderUtils = require("loader-utils");
function subscribe(subscriber, metadata, context) {
if (context[subscriber]) {
context[subscriber](metadata);
}
}
module.exports = makeLoader();
module.exports.custom = makeLoader;
function makeLoader(callback) {
const overrides = callback ? callback(babel) : undefined;
return function (source, inputSourceMap) {
// Make the loader async
const callback = this.async();
loader.call(this, source, inputSourceMap, overrides).then(args => callback(null, ...args), err => callback(err));
};
}
function loader(_x, _x2, _x3) {
return _loader.apply(this, arguments);
}
function _loader() {
_loader = _asyncToGenerator(function* (source, inputSourceMap, overrides) {
const filename = this.resourcePath;
let loaderOptions = loaderUtils.getOptions(this) || {};
let customOptions;
if (overrides && overrides.customOptions) {
const result = yield overrides.customOptions.call(this, loaderOptions);
customOptions = result.custom;
loaderOptions = result.loader;
} // Deprecation handling
if ("forceEnv" in loaderOptions) {
console.warn("The option `forceEnv` has been removed in favor of `envName` in Babel 7.");
}
if (typeof loaderOptions.babelrc === "string") {
console.warn("The option `babelrc` should not be set to a string anymore in the babel-loader config. " + "Please update your configuration and set `babelrc` to true or false.\n" + "If you want to specify a specific babel config file to inherit config from " + "please use the `extends` option.\nFor more information about this options see " + "https://babeljs.io/docs/core-packages/#options");
} // Set babel-loader's default options.
const {
sourceRoot = process.cwd(),
sourceMap = this.sourceMap,
sourceFileName = relative(sourceRoot, filename)
} = loaderOptions;
const programmaticOptions = Object.assign({}, loaderOptions, {
filename,
inputSourceMap: inputSourceMap || undefined,
sourceRoot,
sourceMap,
sourceFileName
}); // Remove loader related options
delete programmaticOptions.cacheDirectory;
delete programmaticOptions.cacheIdentifier;
delete programmaticOptions.metadataSubscribers;
if (!babel.loadPartialConfig) {
throw new Error(`babel-loader ^8.0.0-beta.3 requires @babel/core@7.0.0-beta.41, but ` + `you appear to be using "${babel.version}". Either update your ` + `@babel/core version, or pin you babel-loader version to 8.0.0-beta.2`);
}
const config = babel.loadPartialConfig(programmaticOptions);
if (config) {
let options = config.options;
if (overrides && overrides.config) {
options = yield overrides.config.call(this, config, {
source,
customOptions
});
}
const {
cacheDirectory = null,
cacheIdentifier = JSON.stringify({
options,
"@babel/core": transform.version,
"@babel/loader": pkg.version
}),
metadataSubscribers = []
} = loaderOptions;
let result;
if (cacheDirectory) {
result = yield cache({
source,
options,
transform,
cacheDirectory,
cacheIdentifier
});
} else {
result = yield transform(source, options);
} // TODO: Babel should really provide the full list of config files that
// were used so that this can also handle files loaded with 'extends'.
if (typeof config.babelrc === "string") {
this.addDependency(config.babelrc);
}
if (result) {
if (overrides && overrides.result) {
result = yield overrides.result.call(this, result, {
source,
customOptions,
config,
options
});
}
const {
code,
map,
metadata
} = result;
metadataSubscribers.forEach(subscriber => {
subscribe(subscriber, metadata, this);
});
return [code, map];
}
} // If the file was ignored, pass through the original content.
return [source, inputSourceMap];
});
return _loader.apply(this, arguments);
}
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