1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef IPC_PARAM_TRAITS_WRITE_MACROS_H_
6#define IPC_PARAM_TRAITS_WRITE_MACROS_H_
7
8// Null out all the macros that need nulling.
9#include "ipc/ipc_message_null_macros.h"
10
11// STRUCT declarations cause corresponding STRUCT_TRAITS declarations to occur.
12#undef IPC_STRUCT_BEGIN_WITH_PARENT
13#undef IPC_STRUCT_MEMBER
14#undef IPC_STRUCT_END
15#define IPC_STRUCT_BEGIN_WITH_PARENT(struct_name, parent) \
16  IPC_STRUCT_TRAITS_BEGIN(struct_name)
17#define IPC_STRUCT_MEMBER(type, name, ...) IPC_STRUCT_TRAITS_MEMBER(name)
18#define IPC_STRUCT_END() IPC_STRUCT_TRAITS_END()
19
20// Set up so next include will generate write methods.
21#undef IPC_STRUCT_TRAITS_BEGIN
22#undef IPC_STRUCT_TRAITS_MEMBER
23#undef IPC_STRUCT_TRAITS_PARENT
24#undef IPC_STRUCT_TRAITS_END
25#define IPC_STRUCT_TRAITS_BEGIN(struct_name) \
26  void ParamTraits<struct_name>::Write(Message* m, const param_type& p) {
27#define IPC_STRUCT_TRAITS_MEMBER(name) WriteParam(m, p.name);
28#define IPC_STRUCT_TRAITS_PARENT(type) ParamTraits<type>::Write(m, p);
29#define IPC_STRUCT_TRAITS_END() }
30
31#undef IPC_ENUM_TRAITS_VALIDATE
32#define IPC_ENUM_TRAITS_VALIDATE(enum_name, validation_expression) \
33  void ParamTraits<enum_name>::Write(Message* m, const param_type& value) { \
34    DCHECK(validation_expression); \
35    m->WriteInt(static_cast<int>(value)); \
36  }
37
38#endif  // IPC_PARAM_TRAITS_WRITE_MACROS_H_
39
40