src/Error.js

const STRIP_FILENAME_RE = /^[^:]+: /;

const format = err => {
  if (err instanceof SyntaxError) {
    err.name = "SyntaxError";
    err.message = err.message.replace(STRIP_FILENAME_RE, "");

    err.hideStack = true;
  } else if (err instanceof TypeError) {
    err.name = null;
    err.message = err.message.replace(STRIP_FILENAME_RE, "");

    err.hideStack = true;
  }

  return err;
};

class LoaderError extends Error {
  constructor(err) {
    super();

    const { name, message, codeFrame, hideStack } = format(err);

    this.name = "BabelLoaderError";

    this.message = `${name ? `${name}: ` : ""}${message}\n\n${codeFrame}\n`;

    this.hideStack = hideStack;

    Error.captureStackTrace(this, this.constructor);
  }
}

module.exports = LoaderError;