Function getCallSites

lib/util.js:555–585

* Returns the callSite * @param {number} frameCount * @param {CallSiteOptions} options * @returns {CallSite[]}

(frameCount = 10, options)

 * @returns {CallSite[]}
 */
function getCallSites(frameCount = 10, options) {
  // If options is not provided check if frameCount is an object
  if (options === undefined) {
    if (typeof frameCount === 'object') {
      // If frameCount is an object, it is the options object
      options = frameCount;
      validateObject(options, 'options');
      if (options.sourceMap !== undefined) {
        validateBoolean(options.sourceMap, 'options.sourceMap');
      }
      frameCount = 10;
    } else {
      // If options is not provided, set it to an empty object
      options = {};
    };
  } else {
    // If options is provided, validate it
    validateObject(options, 'options');
    if (options.sourceMap !== undefined) {
      validateBoolean(options.sourceMap, 'options.sourceMap');
    }
  }

  // Using kDefaultMaxCallStackSizeToCapture as reference
  validateInteger(frameCount, 'frameCount', 1, 200);
  // If options.sourceMaps is true or if sourceMaps are enabled but the option.sourceMaps is not set explicitly to false
  if (options.sourceMap === true || (getOptionValue('--enable-source-maps') && options.sourceMap !== false)) {
    return mapCallSite(binding.getCallSites(frameCount));
  }
  return binding.getCallSites(frameCount);
};

// Public util.deprecate API
function deprecate(fn, msg, code, { modifyPrototype } = kEmptyObject) {