408 lines
13 KiB
Plaintext
408 lines
13 KiB
Plaintext
///////////////////////////////////////////////////////////////////////////////
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/// \file lazy.hpp
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/// Contains definition of the lazy<> transform.
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//
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// Copyright 2008 Eric Niebler. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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template<typename Object >
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struct lazy<Object()>
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: transform<lazy<Object()> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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()
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0>
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struct lazy<Object(A0)>
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: transform<lazy<Object(A0)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0>
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struct lazy<Object(A0...)>
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: transform<lazy<Object(A0...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A0
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, detail::expand_pattern_rest_0<
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Object
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1>
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struct lazy<Object(A0 , A1)>
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: transform<lazy<Object(A0 , A1)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1>
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struct lazy<Object(A0 , A1...)>
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: transform<lazy<Object(A0 , A1...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A1
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, detail::expand_pattern_rest_1<
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Object
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, A0
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2>
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struct lazy<Object(A0 , A1 , A2)>
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: transform<lazy<Object(A0 , A1 , A2)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1 , A2)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2>
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struct lazy<Object(A0 , A1 , A2...)>
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: transform<lazy<Object(A0 , A1 , A2...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A2
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, detail::expand_pattern_rest_2<
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Object
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, A0 , A1
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3>
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struct lazy<Object(A0 , A1 , A2 , A3)>
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: transform<lazy<Object(A0 , A1 , A2 , A3)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1 , A2 , A3)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3>
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struct lazy<Object(A0 , A1 , A2 , A3...)>
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: transform<lazy<Object(A0 , A1 , A2 , A3...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A3
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, detail::expand_pattern_rest_3<
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Object
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, A0 , A1 , A2
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1 , A2 , A3 , A4)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4...)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A4
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, detail::expand_pattern_rest_4<
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Object
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, A0 , A1 , A2 , A3
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1 , A2 , A3 , A4 , A5)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5...)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A5
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, detail::expand_pattern_rest_5<
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Object
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, A0 , A1 , A2 , A3 , A4
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1 , A2 , A3 , A4 , A5 , A6)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6...)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A6
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, detail::expand_pattern_rest_6<
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Object
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, A0 , A1 , A2 , A3 , A4 , A5
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7...)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A7
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, detail::expand_pattern_rest_7<
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Object
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, A0 , A1 , A2 , A3 , A4 , A5 , A6
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8...)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A8
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, detail::expand_pattern_rest_8<
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Object
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, A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8 , A9)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8 , A9)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: call<
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typename make<Object>::template impl<Expr, State, Data>::result_type
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(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8 , A9)
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>::template impl<Expr, State, Data>
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{};
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};
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template<typename Object , typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
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struct lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8 , A9...)>
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: transform<lazy<Object(A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8 , A9...)> >
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{
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template<typename Expr, typename State, typename Data>
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struct impl
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: lazy<
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typename detail::expand_pattern<
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proto::arity_of<Expr>::value
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, A9
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, detail::expand_pattern_rest_9<
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Object
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, A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8
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>
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>::type
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>::template impl<Expr, State, Data>
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{};
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};
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