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66 lines
1.6 KiB
66 lines
1.6 KiB
/*============================================================================= |
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Copyright (c) 2005-2007 Dan Marsden |
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Copyright (c) 2005-2007 Joel de Guzman |
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Distributed under the Boost Software License, Version 1.0. (See accompanying |
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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==============================================================================*/ |
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#ifndef PHOENIX_STATEMENT_THROW_HPP |
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#define PHOENIX_STATEMENT_THROW_HPP |
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#include <boost/spirit/home/phoenix/core/actor.hpp> |
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#include <boost/spirit/home/phoenix/core/composite.hpp> |
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#include <boost/spirit/home/phoenix/core/compose.hpp> |
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#include <boost/mpl/bool.hpp> |
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namespace boost { namespace phoenix { |
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struct throw_new_eval |
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{ |
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template<typename Env, typename ThrowExpr> |
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struct result |
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{ |
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typedef void type; |
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}; |
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template<typename Rt, typename Env, typename ThrowExpr> |
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static void |
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eval(const Env& env, ThrowExpr& throwExpr) |
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{ |
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throw throwExpr.eval(env); |
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} |
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}; |
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struct throw_again_eval |
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{ |
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typedef mpl::false_ no_nullary; |
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template<typename Env> |
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struct result |
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{ |
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typedef void type; |
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}; |
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template<typename Env> |
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void eval(const Env&) const |
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{ |
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throw; |
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} |
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}; |
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inline actor<throw_again_eval> throw_() |
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{ |
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return throw_again_eval(); |
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} |
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template<typename Actor> |
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actor<typename as_composite<throw_new_eval, Actor>::type> |
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throw_(const Actor& a) |
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{ |
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return compose<throw_new_eval>(a); |
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} |
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}} |
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#endif
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