Function inputValueFn

packages/core/src/authoring/input/input_signal.ts:127–141

()

  node.transformFn = options?.transform;

  function inputValueFn() {
    // Record that someone looked at this signal.
    producerAccessed(node);

    if (node.value === REQUIRED_UNSET_VALUE) {
      let message: string | null = null;
      if (ngDevMode) {
        const name = options?.debugName ?? options?.alias;
        message = `Input${name ? ` "${name}"` : ''} is required but no value is available yet.`;
      }
      throw new RuntimeError(RuntimeErrorCode.REQUIRED_INPUT_NO_VALUE, message);
    }

    return node.value;
  }

  (inputValueFn as any)[SIGNAL] = node;