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1 | /*============================================================================= |
2 | Copyright (c) 2011 Thomas Heller | |
3 | ||
4 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | ==============================================================================*/ | |
7 | #ifndef BOOST_PHOENIX_CORE_V2_EVAL_HPP | |
8 | #define BOOST_PHOENIX_CORE_V2_EVAL_HPP | |
9 | ||
10 | #include <boost/phoenix/core/limits.hpp> | |
11 | #include <boost/phoenix/core/environment.hpp> | |
12 | #include <boost/phoenix/core/is_actor.hpp> | |
13 | #include <boost/phoenix/core/meta_grammar.hpp> | |
14 | #include <boost/phoenix/core/terminal_fwd.hpp> | |
15 | #include <boost/phoenix/support/vector.hpp> | |
16 | #include <boost/proto/transform/fold.hpp> | |
17 | #include <boost/proto/transform/lazy.hpp> | |
18 | ||
19 | namespace boost { namespace phoenix | |
20 | { | |
21 | struct v2_eval | |
22 | : proto::callable | |
23 | { | |
24 | template <typename Sig> | |
25 | struct result; | |
26 | ||
27 | template <typename This, typename Eval, typename Env> | |
28 | struct result<This(Eval, Env)> | |
29 | : Eval::template result<typename proto::detail::uncvref<Env>::type> | |
30 | {}; | |
31 | ||
32 | template <typename This, typename Eval, typename Env> | |
33 | struct result<This(Eval &, Env)> | |
34 | : Eval::template result<typename proto::detail::uncvref<Env>::type> | |
35 | {}; | |
36 | ||
37 | template <typename This, typename Eval, typename Env> | |
38 | struct result<This(Eval const &, Env)> | |
39 | : Eval::template result<typename proto::detail::uncvref<Env>::type> | |
40 | {}; | |
41 | ||
42 | template <typename Eval, typename Env> | |
43 | typename result<v2_eval(Eval const&, Env)>::type | |
44 | operator()(Eval const & e, Env const & env) const | |
45 | { | |
46 | return e.eval(env); | |
47 | } | |
48 | }; | |
49 | }} | |
50 | ||
51 | #endif |