Function stripTypeScriptTypes

lib/internal/modules/typescript.js:91–115

* Performs type-stripping to TypeScript source code. * @param {string} code TypeScript code to parse. * @param {TransformOptions} options The configuration for type stripping. * @returns {string} The stripped TypeScript code.

(code, options = kEmptyObject)

 * @returns {string} The stripped TypeScript code.
 */
function stripTypeScriptTypes(code, options = kEmptyObject) {
  emitExperimentalWarning('stripTypeScriptTypes');
  validateString(code, 'code');
  validateObject(options, 'options');

  const {
    sourceMap = false,
    sourceUrl = '',
  } = options;
  let { mode = 'strip' } = options;
  validateOneOf(mode, 'options.mode', ['strip']);
  validateString(sourceUrl, 'options.sourceUrl');
  if (mode === 'strip') {
    validateOneOf(sourceMap, 'options.sourceMap', [false, undefined]);
    // Rename mode from 'strip' to 'strip-only'.
    // The reason is to match `process.features.typescript` which returns `strip`,
    // but the parser expects `strip-only`.
    mode = 'strip-only';
  }

  return processTypeScriptCode(code, {
    mode,
    filename: sourceUrl,
  });
}

/**
 * @typedef {object} TypeScriptOptions