@angular-devkit/build-angular
Version:
Angular Webpack Build Facade
44 lines • 7.68 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
const sass_1 = require("sass");
const worker_threads_1 = require("worker_threads");
if (!worker_threads_1.parentPort || !worker_threads_1.workerData) {
throw new Error('Sass worker must be executed as a Worker.');
}
// The importer variables are used to proxy import requests to the main thread
const { workerImporterPort, importerSignal } = worker_threads_1.workerData;
worker_threads_1.parentPort.on('message', ({ id, hasImporter, options }) => {
try {
if (hasImporter) {
// When a custom importer function is present, the importer request must be proxied
// back to the main thread where it can be executed.
// This process must be synchronous from the perspective of dart-sass. The `Atomics`
// functions combined with the shared memory `importSignal` and the Node.js
// `receiveMessageOnPort` function are used to ensure synchronous behavior.
options.importer = function (url, prev) {
Atomics.store(importerSignal, 0, 0);
const { fromImport } = this;
workerImporterPort.postMessage({ id, url, prev, fromImport });
Atomics.wait(importerSignal, 0, 0);
return (0, worker_threads_1.receiveMessageOnPort)(workerImporterPort)?.message;
};
}
// The synchronous Sass render function can be up to two times faster than the async variant
const result = (0, sass_1.renderSync)(options);
worker_threads_1.parentPort?.postMessage({ id, result });
// eslint-disable-next-line @typescript-eslint/no-explicit-any
}
catch (error) {
// Needed because V8 will only serialize the message and stack properties of an Error instance.
const { formatted, file, line, column, message, stack } = error;
worker_threads_1.parentPort?.postMessage({ id, error: { formatted, file, line, column, message, stack } });
}
});
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NyaXB0LWVzbGludC9uby1leHBsaWNpdC1hbnlcbiAgfSBjYXRjaCAoZXJyb3I6IGFueSkge1xuICAgIC8vIE5lZWRlZCBiZWNhdXNlIFY4IHdpbGwgb25seSBzZXJpYWxpemUgdGhlIG1lc3NhZ2UgYW5kIHN0YWNrIHByb3BlcnRpZXMgb2YgYW4gRXJyb3IgaW5zdGFuY2UuXG4gICAgY29uc3QgeyBmb3JtYXR0ZWQsIGZpbGUsIGxpbmUsIGNvbHVtbiwgbWVzc2FnZSwgc3RhY2sgfSA9IGVycm9yO1xuICAgIHBhcmVudFBvcnQ/LnBvc3RNZXNzYWdlKHsgaWQsIGVycm9yOiB7IGZvcm1hdHRlZCwgZmlsZSwgbGluZSwgY29sdW1uLCBtZXNzYWdlLCBzdGFjayB9IH0pO1xuICB9XG59KTtcbiJdfQ==