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minor tweaks

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[SVN r63800]
This commit is contained in:
Thomas Heller
2010-07-09 22:18:20 +00:00
parent 4f0d6249a9
commit c0e3b93b20
2 changed files with 25 additions and 10 deletions
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2
include/boost/phoenix/statement/detail/switch.hpp
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@@ -22,12 +22,10 @@
result_type
operator()(Env& env, Cond const& cond, Case0 const& case0) const
{
/*
switch(eval(cond, env))
{
case A0::value: eval(case0, env); break;
}
*/
}
};

33
include/boost/phoenix/statement/switch.hpp
View File

@@ -56,17 +56,27 @@ namespace boost { namespace phoenix
struct result;
template <typename This, typename Expr, typename State>
struct result<This(Expr, State)>
: fusion::result_of::push_front<typename remove_reference<State>::type const, Expr>
struct result<This(Expr const&, State&)>
: fusion::result_of::push_front<State, Expr>
{};
template <typename This, typename Expr, typename State>
struct result<This(Expr&, State&)>
: fusion::result_of::push_front<State, Expr>
{};
template <typename This, typename Expr, typename State>
struct result<This(Expr, State&)>
: fusion::result_of::push_front<State, Expr>
{};
template <typename Expr, typename State>
typename fusion::result_of::push_front<State const, Expr>::type
operator()(Expr const& expr, State const& state)
typename fusion::result_of::push_front<State, Expr>::type
operator()(Expr const& expr, State& state)
{
return fusion::push_front(state, expr);
}
};
template <typename Case>
@@ -106,11 +116,18 @@ namespace boost { namespace phoenix
>
, proto::when<
proto::binary_expr<switch_case_tag, proto::_, eval_grammar>
, detail::push_front(switch_case<proto::_value(proto::_left), proto::_right>(proto::_right), proto::_state)
, detail::push_front(
switch_case<
proto::_value(proto::_left)
, proto::_right
>(proto::_right)
, proto::_state)
>
, proto::when<
proto::unary_expr<switch_default_tag, eval_grammar>
, detail::push_front(switch_default<proto::_child>(proto::_child), proto::_state)
, detail::push_front(
switch_default<proto::_child>(proto::_child)
, proto::_state)
>
>
//>
@@ -194,7 +211,7 @@ namespace boost { namespace phoenix
typedef
typename fusion::result_of::as_vector<
typename boost::result_of<
switch_grammar(Cases const&, fusion::vector0<> const&)
switch_grammar(Cases const&, fusion::vector0<>&)
>::type
>::type
cases_type;