Make the implementation .cc files go away, instead have the authors give us a...

ipc/ipc_message_generated.cc

+// Copyright (c) 2010 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.
+
+#include "chrome/common/common_param_traits.h"
+
+#define IPC_MESSAGE_IMPL
+#include "ipc/ipc_message_tree.h"
+
+// Null out all the macros that need nulling.
+#include "ipc/ipc_message_null_macros.h"
+
+// Generate constructors.
+#undef IPC_STRUCT_FIRST
+#undef IPC_STRUCT_NEXT
+#undef IPC_STRUCT_LAST
+#define IPC_STRUCT_FIRST(type, name, init) IPC_STRUCT_FIRST_##init(type,name)
+#define IPC_STRUCT_NEXT(type, name, init)  IPC_STRUCT_NEXT_##init(type, name)
+#define IPC_STRUCT_LAST(type, name, init)  IPC_STRUCT_LAST_##init(type, name)
+#define IPC_STRUCT_FIRST_INIT(type, name) \
+  IPC_STRUCT_NAME::IPC_STRUCT_NAME () : name(0)
+#define IPC_STRUCT_NEXT_INIT(type, name) , name(0)
+#define IPC_STRUCT_LAST_INIT(type, name) , name(0) {}
+#define IPC_STRUCT_FIRST_NOINIT(type, name) \
+  error "first member must be initialized"
+#define IPC_STRUCT_NEXT_NOINIT(type, name)
+#define IPC_STRUCT_LAST_NOINIT(type, name) {}
+#include "ipc/ipc_message_tree.h"
+
+// Generate destructors.
+#undef IPC_STRUCT_FIRST
+#undef IPC_STRUCT_NEXT
+#undef IPC_STRUCT_LAST
+#define IPC_STRUCT_FIRST(type, name, init) \
+  IPC_STRUCT_NAME::~IPC_STRUCT_NAME () {}
+#define IPC_STRUCT_NEXT(type, name, init)
+#define IPC_STRUCT_LAST(type, name, init)
+#include "ipc/ipc_message_tree.h"
+
+namespace IPC {
+
+// Generate param traits write methods.
+#undef IPC_STRUCT_FIRST
+#undef IPC_STRUCT_NEXT
+#undef IPC_STRUCT_LAST
+#undef IPC_STRUCT_MEMBER
+#define IPC_STRUCT_FIRST(type, name, init) \
+  void ParamTraits<IPC_STRUCT_NAME>:: \
+      Write(Message* m, const param_type& p) { \
+    IPC_STRUCT_MEMBER(type, name)
+#define IPC_STRUCT_NEXT(type, name, init) IPC_STRUCT_MEMBER(type, name) 
+#define IPC_STRUCT_LAST(type, name, init) IPC_STRUCT_MEMBER(type, name) }
+#define IPC_STRUCT_MEMBER(type, name) WriteParam(m, p.name);
+#include "ipc/ipc_message_tree.h"
+
+// Generate param traits read methods.
+#undef IPC_STRUCT_FIRST
+#undef IPC_STRUCT_NEXT
+#undef IPC_STRUCT_LAST
+#undef IPC_STRUCT_MEMBER
+#define IPC_STRUCT_FIRST(type, name, init) \
+  bool ParamTraits<IPC_STRUCT_NAME>:: \
+      Read(const Message* m, void** iter, param_type* p) { \
+    return IPC_STRUCT_MEMBER(type, name)
+#define IPC_STRUCT_NEXT(type, name, init) && IPC_STRUCT_MEMBER(type, name)
+#define IPC_STRUCT_LAST(type, name, init) && IPC_STRUCT_MEMBER(type, name); }
+#define IPC_STRUCT_MEMBER(type, name) ReadParam(m, iter, &p->name)
+#include "ipc/ipc_message_tree.h"
+
+// Generate param traits log methods.
+#undef IPC_STRUCT_FIRST
+#undef IPC_STRUCT_NEXT
+#undef IPC_STRUCT_LAST
+#undef IPC_STRUCT_MEMBER
+#define IPC_STRUCT_FIRST(type, name, init) \
+  void ParamTraits<IPC_STRUCT_NAME>:: \
+      Log(const param_type& p, std::string* l) { \
+  l->append("("); IPC_STRUCT_MEMBER(type, name)
+#define IPC_STRUCT_NEXT(type, name, init) \
+  l->append(", "); IPC_STRUCT_MEMBER(type, name)
+#define IPC_STRUCT_LAST(type, name, init) \
+  IPC_STRUCT_NEXT(type, name, init) l->append(")"); }
+#define IPC_STRUCT_MEMBER(type, name) LogParam(p.name, l);
+#include "ipc/ipc_message_tree.h"
+
+}  // namespace IPC