1*635a8641SAndroid Build Coastguard Worker // Copyright (c) 2010 The Chromium Authors. All rights reserved. 2*635a8641SAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be 3*635a8641SAndroid Build Coastguard Worker // found in the LICENSE file. 4*635a8641SAndroid Build Coastguard Worker 5*635a8641SAndroid Build Coastguard Worker #ifndef IPC_IPC_PARAM_TRAITS_H_ 6*635a8641SAndroid Build Coastguard Worker #define IPC_IPC_PARAM_TRAITS_H_ 7*635a8641SAndroid Build Coastguard Worker 8*635a8641SAndroid Build Coastguard Worker // Our IPC system uses the following partially specialized header to define how 9*635a8641SAndroid Build Coastguard Worker // a data type is read, written and logged in the IPC system. 10*635a8641SAndroid Build Coastguard Worker 11*635a8641SAndroid Build Coastguard Worker namespace IPC { 12*635a8641SAndroid Build Coastguard Worker namespace internal { 13*635a8641SAndroid Build Coastguard Worker 14*635a8641SAndroid Build Coastguard Worker template <typename T> 15*635a8641SAndroid Build Coastguard Worker struct AlwaysFalse { 16*635a8641SAndroid Build Coastguard Worker static const bool value = false; 17*635a8641SAndroid Build Coastguard Worker }; 18*635a8641SAndroid Build Coastguard Worker 19*635a8641SAndroid Build Coastguard Worker } // namespace internal 20*635a8641SAndroid Build Coastguard Worker 21*635a8641SAndroid Build Coastguard Worker template <class P> struct ParamTraits { 22*635a8641SAndroid Build Coastguard Worker static_assert(internal::AlwaysFalse<P>::value, 23*635a8641SAndroid Build Coastguard Worker "Cannot find the IPC::ParamTraits specialization. Did you " 24*635a8641SAndroid Build Coastguard Worker "forget to include the corresponding header file?"); 25*635a8641SAndroid Build Coastguard Worker }; 26*635a8641SAndroid Build Coastguard Worker 27*635a8641SAndroid Build Coastguard Worker template <class P> 28*635a8641SAndroid Build Coastguard Worker struct SimilarTypeTraits { 29*635a8641SAndroid Build Coastguard Worker typedef P Type; 30*635a8641SAndroid Build Coastguard Worker }; 31*635a8641SAndroid Build Coastguard Worker 32*635a8641SAndroid Build Coastguard Worker } // namespace IPC 33*635a8641SAndroid Build Coastguard Worker 34*635a8641SAndroid Build Coastguard Worker #endif // IPC_IPC_PARAM_TRAITS_H_ 35