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author | Vlad Voicu <vladv@rosedu.org> | 2012-03-02 10:01:11 (GMT) |
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committer | Kevin Smith <git@kismith.co.uk> | 2012-03-09 15:04:05 (GMT) |
commit | 1c8cd160b79b6bbcec72042bdb104ba530508a93 (patch) | |
tree | cff302b81e74c557fbc9e30fd43144d981b613d0 /3rdParty/Boost/src/boost/spirit/home/lex/lexer/action.hpp | |
parent | 2944711aefec9a9dd66052440bc4f921910dd780 (diff) | |
download | swift-contrib-1c8cd160b79b6bbcec72042bdb104ba530508a93.zip swift-contrib-1c8cd160b79b6bbcec72042bdb104ba530508a93.tar.bz2 |
Added spirit to bundled boost
Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/lex/lexer/action.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/spirit/home/lex/lexer/action.hpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/lex/lexer/action.hpp b/3rdParty/Boost/src/boost/spirit/home/lex/lexer/action.hpp new file mode 100644 index 0000000..8de0c87 --- /dev/null +++ b/3rdParty/Boost/src/boost/spirit/home/lex/lexer/action.hpp @@ -0,0 +1,97 @@ +// Copyright (c) 2001-2011 Hartmut Kaiser +// +// 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(SPIRIT_LEX_ACTION_NOV_18_2007_0743PM) +#define SPIRIT_LEX_ACTION_NOV_18_2007_0743PM + +#if defined(_MSC_VER) +#pragma once +#endif + +#include <boost/spirit/home/lex/meta_compiler.hpp> +#include <boost/spirit/home/lex/lexer_type.hpp> +#include <boost/spirit/home/lex/argument.hpp> +#include <boost/spirit/home/lex/lexer/support_functions.hpp> +#include <boost/mpl/if.hpp> +#include <boost/type_traits/remove_const.hpp> +#include <boost/type_traits/is_same.hpp> + +/////////////////////////////////////////////////////////////////////////////// +namespace boost { namespace spirit { namespace lex +{ + /////////////////////////////////////////////////////////////////////////// + template <typename Subject, typename Action> + struct action : unary_lexer<action<Subject, Action> > + { + action(Subject const& subject, Action f) + : subject(subject), f(f) {} + + template <typename LexerDef, typename String> + void collect(LexerDef& lexdef, String const& state + , String const& targetstate) const + { + // collect the token definition information for the token_def + // this action is attached to + subject.collect(lexdef, state, targetstate); + } + + template <typename LexerDef> + void add_actions(LexerDef& lexdef) const + { + // call to add all actions attached further down the hierarchy + subject.add_actions(lexdef); + + // retrieve the id of the associated token_def and register the + // given semantic action with the lexer instance + lexdef.add_action(subject.unique_id(), subject.state(), f); + } + + Subject subject; + Action f; + + private: + // silence MSVC warning C4512: assignment operator could not be generated + action& operator= (action const&); + }; + +}}} + +/////////////////////////////////////////////////////////////////////////////// +namespace boost { namespace spirit +{ + /////////////////////////////////////////////////////////////////////////// + // Karma action meta-compiler + template <> + struct make_component<lex::domain, tag::action> + { + template <typename Sig> + struct result; + + template <typename This, typename Elements, typename Modifiers> + struct result<This(Elements, Modifiers)> + { + typedef typename + remove_const<typename Elements::car_type>::type + subject_type; + + typedef typename + remove_const<typename Elements::cdr_type::car_type>::type + action_type; + + typedef lex::action<subject_type, action_type> type; + }; + + template <typename Elements> + typename result<make_component(Elements, unused_type)>::type + operator()(Elements const& elements, unused_type) const + { + typename result<make_component(Elements, unused_type)>::type + result(elements.car, elements.cdr.car); + return result; + } + }; +}} + +#endif |