1*6777b538SAndroid Build Coastguard Worker // Copyright 2010 The Chromium Authors 2*6777b538SAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be 3*6777b538SAndroid Build Coastguard Worker // found in the LICENSE file. 4*6777b538SAndroid Build Coastguard Worker 5*6777b538SAndroid Build Coastguard Worker #ifndef IPC_IPC_PARAM_TRAITS_H_ 6*6777b538SAndroid Build Coastguard Worker #define IPC_IPC_PARAM_TRAITS_H_ 7*6777b538SAndroid Build Coastguard Worker 8*6777b538SAndroid Build Coastguard Worker // Our IPC system uses the following partially specialized header to define how 9*6777b538SAndroid Build Coastguard Worker // a data type is read, written and logged in the IPC system. 10*6777b538SAndroid Build Coastguard Worker 11*6777b538SAndroid Build Coastguard Worker namespace IPC { 12*6777b538SAndroid Build Coastguard Worker namespace internal { 13*6777b538SAndroid Build Coastguard Worker 14*6777b538SAndroid Build Coastguard Worker template <typename T> 15*6777b538SAndroid Build Coastguard Worker struct AlwaysFalse { 16*6777b538SAndroid Build Coastguard Worker static const bool value = false; 17*6777b538SAndroid Build Coastguard Worker }; 18*6777b538SAndroid Build Coastguard Worker 19*6777b538SAndroid Build Coastguard Worker } // namespace internal 20*6777b538SAndroid Build Coastguard Worker 21*6777b538SAndroid Build Coastguard Worker template <class P> struct ParamTraits { 22*6777b538SAndroid Build Coastguard Worker static_assert(internal::AlwaysFalse<P>::value, 23*6777b538SAndroid Build Coastguard Worker "Cannot find the IPC::ParamTraits specialization. Did you " 24*6777b538SAndroid Build Coastguard Worker "forget to include the corresponding header file?"); 25*6777b538SAndroid Build Coastguard Worker }; 26*6777b538SAndroid Build Coastguard Worker 27*6777b538SAndroid Build Coastguard Worker template <class P> 28*6777b538SAndroid Build Coastguard Worker struct SimilarTypeTraits { 29*6777b538SAndroid Build Coastguard Worker typedef P Type; 30*6777b538SAndroid Build Coastguard Worker }; 31*6777b538SAndroid Build Coastguard Worker 32*6777b538SAndroid Build Coastguard Worker } // namespace IPC 33*6777b538SAndroid Build Coastguard Worker 34*6777b538SAndroid Build Coastguard Worker #endif // IPC_IPC_PARAM_TRAITS_H_ 35