0b6a182c
 Hu Chunming
添加无鉴权注册和注销
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/*=============================================================================
Copyright (c) 2005-2011 Joel de Guzman
Copyright (c) 2011 Thomas Heller
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
==============================================================================*/
#ifndef BOOST_PHOENIX_SCOPE_THIS_HPP
#define BOOST_PHOENIX_SCOPE_THIS_HPP
#include <boost/phoenix/core/limits.hpp>
#include <boost/phoenix/core/actor.hpp>
#include <boost/phoenix/core/environment.hpp>
#include <boost/phoenix/core/expression.hpp>
#include <boost/phoenix/core/meta_grammar.hpp>
#include <boost/phoenix/core/terminal.hpp>
#include <boost/phoenix/scope/lambda.hpp>
#include <boost/type_traits/remove_pointer.hpp>
BOOST_PHOENIX_DEFINE_EXPRESSION_VARARG(
(boost)(phoenix)(this_)
, (meta_grammar)(meta_grammar)
, BOOST_PHOENIX_LIMIT
)
namespace boost { namespace phoenix {
namespace detail
{
/*
struct infinite_recursion_detected {};
struct last_non_this_actor
: proto::or_<
proto::when<
proto::nary_expr<
proto::_
, proto::_
, proto::_
>
, proto::_child_c<1>
>
, proto::when<
proto::nary_expr<
proto::_
, proto::_
, proto::_
, proto::_
>
, proto::_child_c<2>
>
>
{};
*/
}
struct this_eval
{
BOOST_PROTO_CALLABLE()
template <typename Sig>
struct result;
template <typename This, typename A0, typename Context>
struct result<This(A0, Context)>
{
typedef
typename proto::detail::uncvref<
typename result_of::env<
Context
>::type
>::type
outer_env_type;
typedef
typename remove_pointer<
typename remove_reference<
typename fusion::result_of::at_c<
outer_env_type
, 0
>::type
>::type
>::type
actor_type;
typedef
typename result_of::eval<
A0 const &
, Context const &
>::type
a0_type;
typedef
vector2<actor_type const *, a0_type>
inner_env_type;
typedef
scoped_environment<
inner_env_type
, outer_env_type
, vector0<>
, detail::map_local_index_to_tuple<>
>
env_type;
typedef
typename result_of::eval<
actor_type const &
, typename result_of::context<
inner_env_type
, typename result_of::actions<
Context
>::type
>::type
>::type
type;
};
template <typename A0, typename Context>
typename result<this_eval(A0 const&, Context const &)>::type
operator()(A0 const & a0, Context const & ctx) const
{
//std::cout << typeid(checker).name() << "\n";
//std::cout << typeid(checker).name() << "\n";
typedef
typename proto::detail::uncvref<
typename result_of::env<
Context
>::type
>::type
outer_env_type;
typedef
typename remove_pointer<
typename remove_reference<
typename fusion::result_of::at_c<
outer_env_type
, 0
>::type
>::type
>::type
actor_type;
typedef
typename result_of::eval<
A0 const &
, Context const &
>::type
a0_type;
typedef
vector2<actor_type const *, a0_type>
inner_env_type;
typedef
scoped_environment<
inner_env_type
, outer_env_type
, vector0<>
, detail::map_local_index_to_tuple<>
>
env_type;
inner_env_type inner_env = {fusion::at_c<0>(phoenix::env(ctx)), phoenix::eval(a0, ctx)};
vector0<> locals;
env_type env(inner_env, phoenix::env(ctx), locals);
return phoenix::eval(*fusion::at_c<0>(phoenix::env(ctx)), phoenix::context(inner_env, phoenix::actions(ctx)));
//return (*fusion::at_c<0>(phoenix::env(ctx)))(eval(a0, ctx));
}
};
template <typename Dummy>
struct default_actions::when<rule::this_, Dummy>
: call<this_eval>
{};
template <typename Dummy>
struct is_nullary::when<rule::this_, Dummy>
: proto::make<mpl::false_()>
{};
template <typename A0>
typename expression::this_<A0>::type const
this_(A0 const & a0)
{
return expression::this_<A0>::make(a0);
}
}}
#endif
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