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Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/classic/core/non_terminal/parser_id.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/spirit/home/classic/core/non_terminal/parser_id.hpp | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/classic/core/non_terminal/parser_id.hpp b/3rdParty/Boost/src/boost/spirit/home/classic/core/non_terminal/parser_id.hpp new file mode 100644 index 0000000..bc465dc --- /dev/null +++ b/3rdParty/Boost/src/boost/spirit/home/classic/core/non_terminal/parser_id.hpp @@ -0,0 +1,122 @@ +/*============================================================================= + Copyright (c) 2001-2003 Joel de Guzman + Copyright (c) 2001 Daniel Nuffer + http://spirit.sourceforge.net/ + + 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) +=============================================================================*/ +#if !defined(BOOST_SPIRIT_PARSER_ID_HPP) +#define BOOST_SPIRIT_PARSER_ID_HPP + +#if defined(BOOST_SPIRIT_DEBUG) +# include <ostream> +#endif +#include <boost/spirit/home/classic/namespace.hpp> + +/////////////////////////////////////////////////////////////////////////////// +namespace boost { namespace spirit { + +BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN + + /////////////////////////////////////////////////////////////////////////// + // + // parser_id class + // + /////////////////////////////////////////////////////////////////////////// + class parser_id + { + public: + parser_id() : p(0) {} + explicit parser_id(void const* prule) : p(prule) {} + parser_id(std::size_t l_) : l(l_) {} + + bool operator==(parser_id const& x) const { return p == x.p; } + bool operator!=(parser_id const& x) const { return !(*this == x); } + bool operator<(parser_id const& x) const { return p < x.p; } + std::size_t to_long() const { return l; } + + private: + + union + { + void const* p; + std::size_t l; + }; + }; + + #if defined(BOOST_SPIRIT_DEBUG) + inline std::ostream& + operator<<(std::ostream& out, parser_id const& rid) + { + out << (unsigned int)rid.to_long(); + return out; + } + #endif + + /////////////////////////////////////////////////////////////////////////// + // + // parser_tag_base class: base class of all parser tags + // + /////////////////////////////////////////////////////////////////////////// + struct parser_tag_base {}; + + /////////////////////////////////////////////////////////////////////////// + // + // parser_address_tag class: tags a parser with its address + // + /////////////////////////////////////////////////////////////////////////// + struct parser_address_tag : parser_tag_base + { + parser_id id() const + { return parser_id(reinterpret_cast<std::size_t>(this)); } + }; + + /////////////////////////////////////////////////////////////////////////// + // + // parser_tag class: tags a parser with an integer ID + // + /////////////////////////////////////////////////////////////////////////// + template <int N> + struct parser_tag : parser_tag_base + { + static parser_id id() + { return parser_id(std::size_t(N)); } + }; + + /////////////////////////////////////////////////////////////////////////// + // + // dynamic_parser_tag class: tags a parser with a dynamically changeable + // integer ID + // + /////////////////////////////////////////////////////////////////////////// + class dynamic_parser_tag : public parser_tag_base + { + public: + + dynamic_parser_tag() + : tag(std::size_t(0)) {} + + parser_id + id() const + { + return + tag.to_long() + ? tag + : parser_id(reinterpret_cast<std::size_t>(this)); + } + + void set_id(parser_id id_) { tag = id_; } + + private: + + parser_id tag; + }; + +/////////////////////////////////////////////////////////////////////////////// +BOOST_SPIRIT_CLASSIC_NAMESPACE_END + +}} // namespace BOOST_SPIRIT_CLASSIC_NS + +#endif + |