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1 | // Copyright 2008 Christophe Henry |
2 | // henry UNDERSCORE christophe AT hotmail DOT com | |
3 | // This is an extended version of the state machine available in the boost::mpl library | |
4 | // Distributed under the same license as the original. | |
5 | // Copyright for the original version: | |
6 | // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed | |
7 | // under the Boost Software License, Version 1.0. (See accompanying | |
8 | // file LICENSE_1_0.txt or copy at | |
9 | // http://www.boost.org/LICENSE_1_0.txt) | |
10 | ||
11 | #ifndef BOOST_MSM_INTERNAL_ROW_HPP | |
12 | #define BOOST_MSM_INTERNAL_ROW_HPP | |
13 | ||
14 | #include <boost/type_traits/is_base_of.hpp> | |
15 | #include <boost/mpl/bool.hpp> | |
16 | #include <boost/fusion/include/at_key.hpp> | |
17 | #include <boost/msm/back/common_types.hpp> | |
18 | #include <boost/msm/row_tags.hpp> | |
19 | #include <boost/msm/front/detail/row2_helper.hpp> | |
20 | ||
21 | namespace boost { namespace msm { namespace front | |
22 | { | |
23 | template< | |
24 | class Event | |
25 | , typename CalledForAction | |
26 | , void (CalledForAction::*action)(Event const&) | |
27 | > | |
28 | struct a_internal | |
29 | { | |
30 | typedef sm_a_i_row_tag row_type_tag; | |
31 | typedef Event Evt; | |
32 | template <class FSM,class SourceState,class TargetState,class AllStates> | |
33 | static ::boost::msm::back::HandledEnum action_call(FSM& fsm,Event const& evt,SourceState& src,TargetState& tgt, | |
34 | AllStates& all_states) | |
35 | { | |
36 | // in this front-end, we don't need to know source and target states | |
37 | ::boost::msm::front::detail::row2_action_helper<CalledForAction,Event,action>::call_helper | |
38 | (fsm,evt,src,tgt,all_states, | |
39 | ::boost::mpl::bool_< ::boost::is_base_of<CalledForAction,FSM>::type::value>()); | |
40 | return ::boost::msm::back::HANDLED_TRUE; | |
41 | } | |
42 | }; | |
43 | ||
44 | template< | |
45 | class Event | |
46 | , typename CalledForAction | |
47 | , void (CalledForAction::*action)(Event const&) | |
48 | , typename CalledForGuard | |
49 | , bool (CalledForGuard::*guard)(Event const&) | |
50 | > | |
51 | struct internal | |
52 | { | |
53 | typedef sm_i_row_tag row_type_tag; | |
54 | typedef Event Evt; | |
55 | template <class FSM,class SourceState,class TargetState,class AllStates> | |
56 | static ::boost::msm::back::HandledEnum action_call(FSM& fsm,Event const& evt,SourceState& src,TargetState& tgt, | |
57 | AllStates& all_states) | |
58 | { | |
59 | // in this front-end, we don't need to know source and target states | |
60 | ::boost::msm::front::detail::row2_action_helper<CalledForAction,Event,action>::call_helper | |
61 | (fsm,evt,src,tgt,all_states, | |
62 | ::boost::mpl::bool_< ::boost::is_base_of<CalledForAction,FSM>::type::value>()); | |
63 | return ::boost::msm::back::HANDLED_TRUE; | |
64 | } | |
65 | template <class FSM,class SourceState,class TargetState,class AllStates> | |
66 | static bool guard_call(FSM& fsm,Event const& evt,SourceState& src,TargetState& tgt, | |
67 | AllStates& all_states) | |
68 | { | |
69 | // in this front-end, we don't need to know source and target states | |
70 | return ::boost::msm::front::detail::row2_guard_helper<CalledForGuard,Event,guard>::call_helper | |
71 | (fsm,evt,src,tgt,all_states, | |
72 | ::boost::mpl::bool_< ::boost::is_base_of<CalledForGuard,FSM>::type::value>()); | |
73 | } | |
74 | }; | |
75 | template< | |
76 | class Event | |
77 | , typename CalledForGuard | |
78 | , bool (CalledForGuard::*guard)(Event const&) | |
79 | > | |
80 | struct g_internal | |
81 | { | |
82 | typedef sm_g_i_row_tag row_type_tag; | |
83 | typedef Event Evt; | |
84 | template <class FSM,class SourceState,class TargetState,class AllStates> | |
85 | static bool guard_call(FSM& fsm,Event const& evt,SourceState& src,TargetState& tgt, | |
86 | AllStates& all_states) | |
87 | { | |
88 | // in this front-end, we don't need to know source and target states | |
89 | return ::boost::msm::front::detail::row2_guard_helper<CalledForGuard,Event,guard>::call_helper | |
90 | (fsm,evt,src,tgt,all_states, | |
91 | ::boost::mpl::bool_< ::boost::is_base_of<CalledForGuard,FSM>::type::value>()); | |
92 | } | |
93 | }; | |
94 | template< | |
95 | class Event | |
96 | > | |
97 | struct _internal | |
98 | { | |
99 | typedef sm__i_row_tag row_type_tag; | |
100 | typedef Event Evt; | |
101 | }; | |
102 | }}} | |
103 | ||
104 | #endif //BOOST_MSM_INTERNAL_ROW_HPP | |
105 |