Function loader

src/index.js:25–106

* The sass-loader makes dart-sass and sass-embedded available to webpack modules. * @this {LoaderContext} * @param {string} content content * @returns {Promise } loader result

(content)

 * @returns {Promise<void>} loader result
 */
async function loader(content) {
  const options = this.getOptions(/** @type {Schema} */ (schema));
  const callback = this.async();

  let implementation;

  try {
    implementation = await getSassImplementation(options.implementation);
  } catch (error) {
    callback(/** @type {Error} */ (error));

    return;
  }

  const useSourceMap =
    typeof options.sourceMap === "boolean"
      ? options.sourceMap
      : this.sourceMap === true;
  const sassOptions = await getSassOptions(
    this,
    options,
    content,
    useSourceMap,
  );

  const shouldUseWebpackImporter =
    typeof options.webpackImporter === "boolean"
      ? options.webpackImporter
      : true;

  if (shouldUseWebpackImporter) {
    sassOptions.importers.push(getModernWebpackImporter(this));
  }

  let compile;

  try {
    compile = getCompileFn(this, implementation, options.api);
  } catch (error) {
    callback(/** @type {Error} */ (error));
    return;
  }

  let result;

  try {
    result = await compile(sassOptions);
  } catch (error) {
    const sassError = /** @type {SassError} */ (error);

    // There are situations when the `span.url` property does not exist
    if (sassError.span && typeof sassError.span.url !== "undefined") {
      this.addDependency(url.fileURLToPath(sassError.span.url));
    }

    callback(errorFactory(sassError));

    return;