Function normalizeImportSpecifier

src/utils.js:97–107

* Convert a string `implementation` option into something the ECMAScript * `import()` expression actually accepts. Bare package specifiers and * `file:` URLs are passed through unchanged; absolute filesystem paths * (including Windows paths like `C:\\...`) are converted to `file:` URLs * — dynam

(specifier)

 * @returns {string} a valid dynamic import specifier
 */
function normalizeImportSpecifier(specifier) {
  if (specifier.startsWith("file:")) {
    return specifier;
  }

  if (path.isAbsolute(specifier)) {
    return url.pathToFileURL(specifier).href;
  }

  return specifier;
}

/**
 * This function is not Webpack-specific and can be used by tools wishing to mimic `sass-loader`'s behaviour, so its signature should not be changed.