sol2/sol/proxy.hpp

125 lines
3.3 KiB
C++

// The MIT License (MIT)
// Copyright (c) 2013 Danny Y., Rapptz
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "traits.hpp"
#include "object.hpp"
#include "function.hpp"
namespace sol {
template <typename Table, typename Key>
struct proxy {
private:
Table& tbl;
Key& key;
public:
template <typename T>
proxy( Table& table, T&& key ) : tbl( table ), key( std::forward<T>( key ) ) {
}
template<typename T>
T get( ) const {
return tbl.get<T>( key );
}
template<typename T>
proxy& set( T&& item ) {
tbl.set( key, std::forward<T>( item ) );
return *this;
}
template<typename... Args>
proxy& set_function( Args&&... args ) {
tbl.set_function( key, std::forward<Args>( args )... );
return *this;
}
template<typename U>
EnableIf<Function<Unqualified<U>>> operator=( U&& other ) {
tbl.set_function( key, std::forward<U>( other ) );
}
template<typename U>
DisableIf<Function<Unqualified<U>>> operator=( U&& other ) {
tbl.set( key, std::forward<U>( other ) );
}
operator nil_t ( ) {
return get<nil_t>( );
}
operator bool( ) {
return get<bool>( );
}
operator std::string( ) {
return get<std::string>( );
}
operator object( ) {
return get<object>( );
}
operator function( ) {
return get<function>( );
}
operator double( ) {
return get<double>( );
}
operator float( ) {
return get<float>( );
}
operator int( ) {
return get<int>( );
}
template<typename... Ret, typename... Args>
typename multi_return<Ret...>::type call( Args&&... args ) {
return tbl.get<function>(key)(types<Ret...>(), std::forward<Args>( args )...);
}
};
template <typename Table, typename Key, typename T>
bool operator== ( T&& left, const proxy<Table, Key>& right ) {
return right.get<Decay<T>>( ) == left;
}
template <typename Table, typename Key, typename T>
bool operator== ( const proxy<Table, Key>& right, T&& left ) {
return right.get<Decay<T>>( ) == left;
}
template <typename Table, typename Key, typename T>
bool operator!= ( T&& left, const proxy<Table, Key>& right ) {
return right.get<Decay<T>>( ) != left;
}
template <typename Table, typename Key, typename T>
bool operator!= ( const proxy<Table, Key>& right, T&& left ) {
return right.get<Decay<T>>( ) != left;
}
} // sol