react-router-ga/example/node_modules/babel-loader/lib/Error.js

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"use strict";

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;