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56 lines
1.4 KiB
56 lines
1.4 KiB
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_LIBARTBASE_BASE_DUMPABLE_H_
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#define ART_LIBARTBASE_BASE_DUMPABLE_H_
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#include <ostream>
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#include "macros.h"
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namespace art {
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// A convenience to allow any class with a "Dump(std::ostream& os)" member function
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// but without an operator<< to be used as if it had an operator<<. Use like this:
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//
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// os << Dumpable<MyType>(my_type_instance);
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//
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template<typename T>
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class Dumpable final {
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public:
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explicit Dumpable(const T& value) : value_(value) {
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}
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void Dump(std::ostream& os) const {
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value_.Dump(os);
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}
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private:
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const T& value_;
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DISALLOW_COPY_AND_ASSIGN(Dumpable);
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};
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template<typename T>
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std::ostream& operator<<(std::ostream& os, const Dumpable<T>& rhs) {
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rhs.Dump(os);
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return os;
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}
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} // namespace art
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#endif // ART_LIBARTBASE_BASE_DUMPABLE_H_
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