diagnostics/mojo/nullable_primitives.mojom

// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// This file contains Mojo structs representing nullable primitives - since Mojo
// doesn't support these natively, when we want a primitive parameter or return
// value to be optional, we need to wrap it in a nullable struct.
// TODO(crbug/657632): Remove this file if Mojo adds support for nullable
// primitives.

// NOTE: This mojom should be kept in sync with the copy in Chromium's repo in
// src/chrome/services/cros_healthd/public/mojom/nullable_primitives.mojom.

module chromeos.cros_healthd.mojom;

// Optional uint32 field.
struct NullableUint32 {
  // The value of the uint32.
  uint32 value;
};

// Optional uint64 field.
struct NullableUint64 {
  // The value of the uint64.
  uint64 value;
};