[857] | 1 | /*=============================================================================
|
---|
| 2 | Copyright (c) 2003 Jonathan de Halleux (dehalleux@pelikhan.com)
|
---|
| 3 | http://spirit.sourceforge.net/
|
---|
| 4 |
|
---|
| 5 | Use, modification and distribution is subject to the Boost Software
|
---|
| 6 | License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
---|
| 7 | http://www.boost.org/LICENSE_1_0.txt)
|
---|
| 8 | =============================================================================*/
|
---|
| 9 | #ifndef BOOST_SPIRIT_ACTOR_CLEAR_ACTOR_HPP
|
---|
| 10 | #define BOOST_SPIRIT_ACTOR_CLEAR_ACTOR_HPP
|
---|
| 11 |
|
---|
| 12 | #include <boost/spirit/actor/ref_actor.hpp>
|
---|
| 13 |
|
---|
| 14 | namespace boost { namespace spirit {
|
---|
| 15 |
|
---|
| 16 | ///////////////////////////////////////////////////////////////////////////
|
---|
| 17 | // Summary:
|
---|
| 18 | // A semantic action policy that calls clear method.
|
---|
| 19 | // (This doc uses convention available in actors.hpp)
|
---|
| 20 | //
|
---|
| 21 | // Actions (what it does):
|
---|
| 22 | // ref.clear();
|
---|
| 23 | //
|
---|
| 24 | // Policy name:
|
---|
| 25 | // clear_action
|
---|
| 26 | //
|
---|
| 27 | // Policy holder, corresponding helper method:
|
---|
| 28 | // ref_actor, clear_a( ref );
|
---|
| 29 | //
|
---|
| 30 | // () operators: both.
|
---|
| 31 | //
|
---|
| 32 | // See also ref_actor for more details.
|
---|
| 33 | ///////////////////////////////////////////////////////////////////////////
|
---|
| 34 | struct clear_action
|
---|
| 35 | {
|
---|
| 36 | template<
|
---|
| 37 | typename T
|
---|
| 38 | >
|
---|
| 39 | void act(T& ref_) const
|
---|
| 40 | {
|
---|
| 41 | ref_.clear();
|
---|
| 42 | }
|
---|
| 43 | };
|
---|
| 44 |
|
---|
| 45 | ///////////////////////////////////////////////////////////////////////////
|
---|
| 46 | // helper method that creates a and_assign_actor.
|
---|
| 47 | ///////////////////////////////////////////////////////////////////////////
|
---|
| 48 | template<typename T>
|
---|
| 49 | inline ref_actor<T,clear_action> clear_a(T& ref_)
|
---|
| 50 | {
|
---|
| 51 | return ref_actor<T,clear_action>(ref_);
|
---|
| 52 | }
|
---|
| 53 |
|
---|
| 54 |
|
---|
| 55 | }}
|
---|
| 56 |
|
---|
| 57 | #endif
|
---|
| 58 |
|
---|