| /*============================================================================= | |
| Copyright (c) 2003 Jonathan de Halleux (dehalleux@pelikhan.com) | |
| http://spirit.sourceforge.net/ | |
| 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_SPIRIT_ACTOR_ASSIGN_ACTOR_HPP | |
| #define BOOST_SPIRIT_ACTOR_ASSIGN_ACTOR_HPP | |
| #include <boost/spirit/home/classic/namespace.hpp> | |
| #include <boost/spirit/home/classic/actor/ref_value_actor.hpp> | |
| #include <boost/spirit/home/classic/actor/ref_const_ref_actor.hpp> | |
| namespace boost { namespace spirit { | |
| BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN | |
| /////////////////////////////////////////////////////////////////////////// | |
| // Summary: | |
| // A semantic action policy that applies the assignement operator. | |
| // (This doc uses convention available in actors.hpp) | |
| // | |
| // Actions (what it does): | |
| // ref = value; | |
| // ref = T(first,last); | |
| // ref = value_ref; | |
| // | |
| // Policy name: | |
| // assign_action | |
| // | |
| // Policy holder, corresponding helper method: | |
| // ref_value_actor, assign_a( ref ); | |
| // ref_const_ref_actor, assign_a( ref, value_ref ); | |
| // | |
| // () operators: both | |
| // | |
| // See also ref_value_actor and ref_const_ref_actor for more details. | |
| /////////////////////////////////////////////////////////////////////////// | |
| struct assign_action | |
| { | |
| template< | |
| typename T, | |
| typename ValueT | |
| > | |
| void act(T& ref_, ValueT const& value_) const | |
| { | |
| ref_ = value_; | |
| } | |
| template< | |
| typename T, | |
| typename IteratorT | |
| > | |
| void act( | |
| T& ref_, | |
| IteratorT const& first_, | |
| IteratorT const& last_ | |
| ) const | |
| { | |
| typedef T value_type; | |
| #ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS | |
| value_type value(first_,last_); | |
| #else | |
| value_type value; | |
| std::copy(first_, last_, std::inserter(value, value.end())); | |
| #endif | |
| ref_ = value; | |
| } | |
| }; | |
| // Deprecated. Please use assign_a | |
| template<typename T> | |
| inline ref_value_actor<T,assign_action> assign(T& ref_) | |
| { | |
| return ref_value_actor<T,assign_action>(ref_); | |
| } | |
| template<typename T> | |
| inline ref_value_actor<T,assign_action> assign_a(T& ref_) | |
| { | |
| return ref_value_actor<T,assign_action>(ref_); | |
| } | |
| template< | |
| typename T, | |
| typename ValueT | |
| > | |
| inline ref_const_ref_actor<T,ValueT,assign_action> assign_a( | |
| T& ref_, | |
| ValueT const& value_ | |
| ) | |
| { | |
| return ref_const_ref_actor<T,ValueT,assign_action>(ref_,value_); | |
| } | |
| BOOST_SPIRIT_CLASSIC_NAMESPACE_END | |
| }} | |
| #endif |