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Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/lex/meta_compiler.hpp')
-rw-r--r--3rdParty/Boost/src/boost/spirit/home/lex/meta_compiler.hpp104
1 files changed, 104 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/lex/meta_compiler.hpp b/3rdParty/Boost/src/boost/spirit/home/lex/meta_compiler.hpp
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index 0000000..6e13d37
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+++ b/3rdParty/Boost/src/boost/spirit/home/lex/meta_compiler.hpp
@@ -0,0 +1,104 @@
+// Copyright (c) 2001-2011 Hartmut Kaiser
+// Copyright (c) 2001-2011 Joel de Guzman
+//
+// 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_LEX_META_COMPILER_APR_20_2009_0756PM)
+#define BOOST_SPIRIT_LEX_META_COMPILER_APR_20_2009_0756PM
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/spirit/home/support/meta_compiler.hpp>
+#include <boost/spirit/home/lex/domain.hpp>
+#include <boost/spirit/home/lex/lexer_type.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/utility/enable_if.hpp>
+
+namespace boost { namespace spirit
+{
+ template <typename T>
+ struct use_terminal<lex::domain, T
+ , typename enable_if<traits::is_lexer<T> >::type> // enables lexers
+ : mpl::true_ {};
+
+ namespace lex
+ {
+ template <typename T, typename Modifiers, typename Enable = void>
+ struct make_primitive // by default, return it as-is
+ {
+ typedef T result_type;
+
+ template <typename T_>
+ T_& operator()(T_& val, unused_type) const
+ {
+ return val;
+ }
+
+ template <typename T_>
+ T_ const& operator()(T_ const& val, unused_type) const
+ {
+ return val;
+ }
+ };
+
+ template <typename Tag, typename Elements
+ , typename Modifiers, typename Enable = void>
+ struct make_composite;
+ }
+
+ // Lex primitive meta-compiler
+ template <>
+ struct make_component<lex::domain, proto::tag::terminal>
+ {
+ template <typename Sig>
+ struct result;
+
+ template <typename This, typename Elements, typename Modifiers>
+ struct result<This(Elements, Modifiers)>
+ {
+ typedef typename lex::make_primitive<
+ typename remove_const<typename Elements::car_type>::type,
+ typename remove_reference<Modifiers>::type>::result_type
+ type;
+ };
+
+ template <typename Elements, typename Modifiers>
+ typename result<make_component(Elements, Modifiers)>::type
+ operator()(Elements const& elements, Modifiers const& modifiers) const
+ {
+ typedef typename remove_const<typename Elements::car_type>::type term;
+ return lex::make_primitive<term, Modifiers>()(elements.car, modifiers);
+ }
+ };
+
+ // Lex composite meta-compiler
+ template <typename Tag>
+ struct make_component<lex::domain, Tag>
+ {
+ template <typename Sig>
+ struct result;
+
+ template <typename This, typename Elements, typename Modifiers>
+ struct result<This(Elements, Modifiers)>
+ {
+ typedef typename
+ lex::make_composite<Tag, Elements
+ , typename remove_reference<Modifiers>::type>::result_type
+ type;
+ };
+
+ template <typename Elements, typename Modifiers>
+ typename result<make_component(Elements, Modifiers)>::type
+ operator()(Elements const& elements, Modifiers const& modifiers) const
+ {
+ return lex::make_composite<Tag, Elements, Modifiers>()(
+ elements, modifiers);
+ }
+ };
+
+}}
+
+#endif