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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_READ_MACROS_H_
6 #define IPC_PARAM_TRAITS_READ_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 read 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   bool ParamTraits<struct_name>::Read(                                    \
27       const base::Pickle* m, base::PickleIterator* iter, param_type* p) { \
28   return
29 #define IPC_STRUCT_TRAITS_MEMBER(name) ReadParam(m, iter, &p->name) &&
30 #define IPC_STRUCT_TRAITS_PARENT(type) ParamTraits<type>::Read(m, iter, p) &&
31 #define IPC_STRUCT_TRAITS_END() 1; }
32 
33 #undef IPC_ENUM_TRAITS_VALIDATE
34 #define IPC_ENUM_TRAITS_VALIDATE(enum_name, validation_expression)        \
35   bool ParamTraits<enum_name>::Read(                                      \
36       const base::Pickle* m, base::PickleIterator* iter, param_type* p) { \
37     int value;                                                            \
38     if (!iter->ReadInt(&value))                                           \
39       return false;                                                       \
40     if (!(validation_expression))                                         \
41       return false;                                                       \
42     *p = static_cast<param_type>(value);                                  \
43     return true;                                                          \
44   }
45 
46 #endif  // IPC_PARAM_TRAITS_READ_MACROS_H_
47 
48