44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
//* Copyright 2017 The NXT 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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#ifndef NXTCPP_TRAITS_H
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#define NXTCPP_TRAITS_H
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#include "nxtcpp.h"
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#include <type_traits>
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namespace nxt {
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template<typename Builder>
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using BuiltObject = decltype(std::declval<Builder>().GetResult());
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template<typename BuiltObject>
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struct BuiltObjectTrait {
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};
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{% for type in by_category["object"] if type.is_builder %}
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template<>
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struct BuiltObjectTrait<BuiltObject<{{as_cppType(type.name)}}>> {
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using Builder = {{as_cppType(type.name)}};
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};
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{% endfor %}
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template<typename BuiltObject>
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using Builder = typename BuiltObjectTrait<BuiltObject>::Builder;
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}
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#endif // NXTCPP_TRAITS_H
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