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62 lines
1.6 KiB
62 lines
1.6 KiB
/*============================================================================= |
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Copyright (c) 2001-2007 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_DO_WHILE_HPP |
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#define PHOENIX_STATEMENT_DO_WHILE_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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namespace boost { namespace phoenix |
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{ |
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struct do_while_eval |
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{ |
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template <typename Env, typename Cond, typename Do> |
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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 Cond, typename Do> |
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static void |
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eval(Env const& env, Cond& cond, Do& do_) |
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{ |
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do |
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do_.eval(env); |
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while (cond.eval(env)); |
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} |
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}; |
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template <typename Do> |
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struct do_while_gen |
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{ |
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do_while_gen(Do const& do_) |
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: do_(do_) {} |
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template <typename Cond> |
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actor<typename as_composite<do_while_eval, Cond, Do>::type> |
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while_(Cond const& cond) const |
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{ |
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return compose<do_while_eval>(cond, do_); |
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} |
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Do do_; |
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}; |
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struct do_gen |
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{ |
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template <typename Do> |
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do_while_gen<Do> |
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operator[](Do const& do_) const |
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{ |
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return do_while_gen<Do>(do_); |
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} |
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}; |
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do_gen const do_ = do_gen(); |
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}} |
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#endif
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