forked from enlightenment/efl
70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
/*
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* Copyright 2019 by its authors. See AUTHORS.
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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 EOLIAN_CXX_GENERATOR_HH
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#define EOLIAN_CXX_GENERATOR_HH
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#include <type_traits>
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// EXPERIMENTAL
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//#define USE_EOCXX_INHERIT_ONLY
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//#define USE_EOCXX_MANUAL_OVERRIDES
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namespace efl { namespace eolian { namespace grammar {
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template <typename T, typename Enable = void>
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struct is_generator : std::false_type {};
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template <typename T, typename Enable = void>
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struct is_eager_generator : std::false_type {};
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template <typename T>
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struct is_generator<T&> : is_generator<T> {};
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template <typename T>
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struct is_eager_generator<T&> : is_eager_generator<T> {};
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template <typename T>
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struct is_generator<T const&> : is_generator<T> {};
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template <typename T>
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struct is_eager_generator<T const&> : is_eager_generator<T> {};
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template <typename T>
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struct is_generator<T const> : is_generator<T> {};
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template <typename T>
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struct is_eager_generator<T const> : is_eager_generator<T> {};
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template <typename T>
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struct is_generator<T volatile> : is_generator<T> {};
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template <typename T>
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struct is_eager_generator<T volatile> : is_eager_generator<T> {};
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template <typename T>
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struct is_generator<T volatile&> : is_generator<T> {};
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template <typename T>
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struct is_eager_generator<T volatile&> : is_eager_generator<T> {};
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template <typename T>
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struct is_generator<T volatile const> : is_generator<T> {};
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template <typename T>
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struct is_eager_generator<T volatile const> : is_eager_generator<T> {};
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template <typename T>
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struct is_generator<T volatile const&> : is_generator<T> {};
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template <typename T>
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struct is_eager_generator<T volatile const&> : is_eager_generator<T> {};
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// template <typename T>
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// struct is_generator<T> : is_eager_generator<T> {};
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template <typename G, typename Enable = typename std::enable_if<is_eager_generator<G>::value>::type>
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G as_generator(G g) { return g; }
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} } }
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#endif
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