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Sprout/sprout/weed/context/parse_context_fwd.hpp
2016-02-25 18:48:28 +09:00

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/*=============================================================================
Copyright (c) 2011-2016 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_WEED_CONTEXT_PARSE_CONTEXT_FWD_HPP
#define SPROUT_WEED_CONTEXT_PARSE_CONTEXT_FWD_HPP
#include <sprout/config.hpp>
namespace sprout {
namespace weed {
//
// parse_context
//
template<typename Iterator>
class parse_context {
public:
template<typename Expr, typename = void>
struct eval;
private:
Iterator first_;
Iterator last_;
public:
SPROUT_CONSTEXPR parse_context(Iterator first, Iterator last)
: first_(first)
, last_(last)
{}
SPROUT_CONSTEXPR parse_context(parse_context const& other, Iterator current)
: first_(current)
, last_(other.last_)
{}
SPROUT_CONSTEXPR Iterator begin() const {
return first_;
}
SPROUT_CONSTEXPR Iterator end() const {
return last_;
}
SPROUT_CONSTEXPR bool empty() const {
return first_ == last_;
}
};
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_CONTEXT_PARSE_CONTEXT_FWD_HPP