WIP

nestedError.ts

export class NestedError<ErrorLike extends Error> extends Error {
  private nestedError: ErrorLike;

  constructor(config: { message?: string; nestedError: ErrorLike }) {
    const { message = "", nestedError } = config;

    super(message);

    this.nestedError = nestedError;

    Error.captureStackTrace(this, this.constructor);

    const oldStackDecriptor = Object.getOwnPropertyDescriptor(this, "stack");
  }

  buildCominedStacks(stack: string, nestedError?: ErrorLike) {
    if (nestedError) {
      stack = `\nCaused bt ${nestedError.stack}`;
    }

    return stack;
  }

  buildStackDecriptor(
    oldStackDecriptor: PropertyDescriptor,
    nestedStack: PropertyDescriptor
  ) {
    if (oldStackDecriptor.get) {
      const stack = oldStackDecriptor.get.call(this);
      const result = this.buildCominedStacks(stack, this.nestedError);

      return {
        get() {
          return result;
        },
      };
    }

    const stack = oldStackDecriptor.value;
    const value = this.buildCominedStacks(stack, nestedStack);

    return { value };
  }
}