Function createErrorProxy

src/shared/Util.ts:345–356

(title: string)

 * @param title Title to use in the error, usually the name of the variable the error proxy will be set for
 */
export function createErrorProxy(title: string): any {
  return new Proxy({}, {
    // @TODO Make it throw errors for all(?) cases (delete, construct etc.)
    get: (target, p) => {
      if (p === errorProxySymbol) { return errorProxyValue; }
      throw new Error(`You must not get a value from ${title} before it is initialized (property: "${p.toString()}").`);
    },
    set: (target, p) => {
      throw new Error(`You must not set a value from ${title} before it is initialized (property: "${p.toString()}").`);
    },
  });
}

/**
 * Convert a size (in bytes) to a more human readable format.