1 files changed, 39 insertions, 0 deletions
diff --git a/ipc/param_traits_macros.h b/ipc/param_traits_macros.h
new file mode 100644
index 000000000000..df57adfb32e0
--- /dev/null
+++ b/ipc/param_traits_macros.h
@@ -0,0 +1,39 @@
+// Copyright (c) 2011 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.
+
+#ifndef IPC_PARAM_TRAITS_MACROS_H_
+#define IPC_PARAM_TRAITS_MACROS_H_
+
+#include <string>
+
+// Traits generation for structs.
+#define IPC_STRUCT_TRAITS_BEGIN(struct_name) \
+  namespace IPC { \
+    template <> \
+    struct ParamTraits<struct_name> { \
+      typedef struct_name param_type; \
+      static void Write(Message* m, const param_type& p); \
+      static bool Read(const Message* m, void** iter, param_type* p); \
+      static void Log(const param_type& p, std::string* l); \
+    }; \
+  }
+
+#define IPC_STRUCT_TRAITS_MEMBER(name)
+#define IPC_STRUCT_TRAITS_PARENT(type)
+#define IPC_STRUCT_TRAITS_END()
+
+// Traits generation for enums.
+#define IPC_ENUM_TRAITS(enum_name) \
+  namespace IPC { \
+    template <> \
+    struct ParamTraits<enum_name> { \
+      typedef enum_name param_type; \
+      static void Write(Message* m, const param_type& p); \
+      static bool Read(const Message* m, void** iter, param_type* p); \
+      static void Log(const param_type& p, std::string* l); \
+    }; \
+  }
+
+#endif  // IPC_PARAM_TRAITS_MACROS_H_
+