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#ifndef BOOST_PHOENIX_SCOPE_LAMBDA_HPP
#define BOOST_PHOENIX_SCOPE_LAMBDA_HPP
#include <boost/phoenix/core/limits.hpp>
#include <boost/fusion/include/transform.hpp>
#include <boost/fusion/include/as_vector.hpp>
#include <boost/mpl/int.hpp>
#include <boost/phoenix/core/call.hpp>
#include <boost/phoenix/core/expression.hpp>
#include <boost/phoenix/core/meta_grammar.hpp>
#include <boost/phoenix/scope/local_variable.hpp>
#include <boost/phoenix/scope/scoped_environment.hpp>
#if !defined(BOOST_PHOENIX_DONT_USE_PREPROCESSED_FILES)
#include <boost/phoenix/scope/preprocessed/lambda.hpp>
#else
#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
#pragma wave option(preserve: 2, line: 0, output: "preprocessed/lambda_" BOOST_PHOENIX_LIMIT_STR ".hpp")
#endif
/*==============================================================================
Copyright (c) 2001-2010 Joel de Guzman
Copyright (c) 2004 Daniel Wallin
Copyright (c) 2010 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)
==============================================================================*/
#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
#pragma wave option(preserve: 1)
#endif
BOOST_PHOENIX_DEFINE_EXPRESSION(
(boost)(phoenix)(lambda_actor)
, (proto::terminal<proto::_>) // Locals
(proto::terminal<proto::_>) // Map
(meta_grammar) // Lambda
)
BOOST_PHOENIX_DEFINE_EXPRESSION(
(boost)(phoenix)(lambda)
, (proto::terminal<proto::_>) // OuterEnv
(proto::terminal<proto::_>) // Locals
(proto::terminal<proto::_>) // Map
(meta_grammar) // Lambda
)
namespace boost { namespace phoenix
{
struct lambda_eval
{
BOOST_PROTO_CALLABLE()
template <typename Sig>
struct result;
template <
typename This
, typename OuterEnv
, typename Locals
, typename Map
, typename Lambda
, typename Context
>
struct result<This(OuterEnv, Locals, Map, Lambda, Context)>
{
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<
OuterEnv
>::type
>::type
outer_env_type;
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<
Locals
>::type
>::type
locals_type;
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<
Map
>::type
>::type
map_type;
typedef
typename proto::detail::uncvref<
typename result_of::env<Context>::type
>::type
env_type;
typedef
typename result_of::eval<
Lambda
, typename result_of::context<
scoped_environment<
env_type
, outer_env_type
, locals_type
, map_type
>
, typename result_of::actions<
Context
>::type
>::type
>::type
type;
};
template <typename OuterEnv, typename Locals, typename Map, typename Lambda, typename Context>
typename result<lambda_eval(OuterEnv const &, Locals const &, Map const &, Lambda const &, Context const &)>::type
operator()(OuterEnv const & outer_env, Locals const & locals, Map const &, Lambda const & lambda, Context const & ctx) const
{
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<
OuterEnv
>::type
>::type
outer_env_type;
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<
Locals
>::type
>::type
locals_type;
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<
Map
>::type
>::type
map_type;
typedef
typename proto::detail::uncvref<
typename result_of::env<Context>::type
>::type
env_type;
scoped_environment<
env_type
, outer_env_type
, locals_type
, map_type
>
env(phoenix::env(ctx), proto::value(outer_env), proto::value(locals));
return eval(lambda, phoenix::context(env, phoenix::actions(ctx)));
}
};
template <typename Dummy>
struct default_actions::when<rule::lambda, Dummy>
: call<lambda_eval, Dummy>
{};
template <typename Dummy>
struct is_nullary::when<rule::lambda, Dummy>
: proto::call<
evaluator(
proto::_child_c<3>
, proto::call<
functional::context(
proto::make<
mpl::true_()
>
, proto::make<
detail::scope_is_nullary_actions()
>
)
>
, proto::make<
proto::empty_env()
>
)
>
{};
template <typename Dummy>
struct is_nullary::when<rule::lambda_actor, Dummy>
: proto::or_<
proto::when<
expression::lambda_actor<
proto::terminal<vector0<> >
, proto::terminal<proto::_>
, meta_grammar
>
, mpl::true_()
>
, proto::when<
expression::lambda_actor<
proto::terminal<proto::_>
, proto::terminal<proto::_>
, meta_grammar
>
, proto::fold<
proto::call<proto::_value(proto::_child_c<0>)>
, proto::make<mpl::true_()>
, proto::make<
mpl::and_<
proto::_state
, proto::call<
evaluator(
proto::_
, _context
, proto::make<proto::empty_env()>
)
>
>()
>
>
>
>
{};
struct lambda_actor_eval
{
template <typename Sig>
struct result;
template <typename This, typename Vars, typename Map, typename Lambda, typename Context>
struct result<This(Vars, Map, Lambda, Context)>
{
typedef
typename proto::detail::uncvref<
typename result_of::env<Context>::type
>::type
env_type;
typedef
typename proto::detail::uncvref<
typename result_of::actions<Context>::type
>::type
actions_type;
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<Vars>::type
>::type
vars_type;
typedef typename
detail::result_of::initialize_locals<
vars_type
, Context
>::type
locals_type;
typedef
typename expression::lambda<
env_type
, locals_type
, Map
, Lambda
>::type const
type;
};
template <
typename Vars
, typename Map
, typename Lambda
, typename Context
>
typename result<
lambda_actor_eval(Vars const&, Map const &, Lambda const&, Context const &)
>::type const
operator()(Vars const& vars, Map const& map, Lambda const& lambda, Context const & ctx) const
{
typedef
typename proto::detail::uncvref<
typename result_of::env<Context>::type
>::type
env_type;
typedef
typename proto::detail::uncvref<
typename result_of::actions<Context>::type
>::type
actions_type;
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<Vars>::type
>::type
vars_type;
typedef
typename proto::detail::uncvref<
typename proto::result_of::value<Map>::type
>::type
map_type;
typedef typename
detail::result_of::initialize_locals<
vars_type
, Context
>::type
locals_type;
locals_type locals = initialize_locals(proto::value(vars), ctx);
return
expression::
lambda<env_type, locals_type, Map, Lambda>::
make(phoenix::env(ctx), locals, map, lambda);
}
};
template <typename Dummy>
struct default_actions::when<rule::lambda_actor, Dummy>
: call<lambda_actor_eval, Dummy>
{};
template <typename Locals = void, typename Map = void, typename Dummy = void>
struct lambda_actor_gen;
template <>
struct lambda_actor_gen<void, void, void>
{
template <typename Expr>
typename expression::lambda_actor<vector0<>, detail::map_local_index_to_tuple<>, Expr>::type const
operator[](Expr const & expr) const
{
typedef vector0<> locals_type;
typedef detail::map_local_index_to_tuple<> map_type;
return expression::lambda_actor<locals_type, map_type, Expr>::make(locals_type(), map_type(), expr);
}
};
template <typename Locals, typename Map>
struct lambda_actor_gen<Locals, Map>
{
lambda_actor_gen(Locals const & locals)
: locals(locals)
{}
lambda_actor_gen(lambda_actor_gen const & o)
: locals(o.locals)
{};
template <typename Expr>
typename expression::lambda_actor<
Locals
, Map
, Expr
>::type const
operator[](Expr const & expr) const
{
return expression::lambda_actor<Locals, Map, Expr>::make(locals, Map(), expr);
}
Locals locals;
};
struct lambda_local_gen
: lambda_actor_gen<>
{
lambda_actor_gen<> const
operator()() const
{
return lambda_actor_gen<>();
}
#define BOOST_PHOENIX_SCOPE_ACTOR_GEN_NAME lambda_actor_gen
#define BOOST_PHOENIX_SCOPE_ACTOR_GEN_FUNCTION operator()
#define BOOST_PHOENIX_SCOPE_ACTOR_GEN_CONST const
#include <boost/phoenix/scope/detail/local_gen.hpp>
#undef BOOST_PHOENIX_SCOPE_ACTOR_GEN_NAME
#undef BOOST_PHOENIX_SCOPE_ACTOR_GEN_FUNCTION
#undef BOOST_PHOENIX_SCOPE_ACTOR_GEN_CONST
};
typedef lambda_local_gen lambda_type;
lambda_local_gen const lambda = lambda_local_gen();
}}
#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
#pragma wave option(output: null)
#endif
#endif
#endif
|
Swift