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Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/support/meta_compiler.hpp')
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diff --git a/3rdParty/Boost/src/boost/spirit/home/support/meta_compiler.hpp b/3rdParty/Boost/src/boost/spirit/home/support/meta_compiler.hpp
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+++ b/3rdParty/Boost/src/boost/spirit/home/support/meta_compiler.hpp
@@ -0,0 +1,320 @@
+/*=============================================================================
+ Copyright (c) 2001-2011 Joel de Guzman
+ 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)
+=============================================================================*/
+#ifndef BOOST_SPIRIT_META_COMPILER_OCTOBER_16_2008_1258PM
+#define BOOST_SPIRIT_META_COMPILER_OCTOBER_16_2008_1258PM
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <boost/spirit/include/phoenix_limits.hpp>
+#include <boost/detail/workaround.hpp>
+#include <boost/spirit/include/phoenix_limits.hpp> // needs to be included before proto
+#include <boost/proto/proto.hpp>
+#include <boost/spirit/home/support/make_component.hpp>
+#include <boost/spirit/home/support/modify.hpp>
+#include <boost/spirit/home/support/detail/make_cons.hpp>
+#include <boost/spirit/home/support/unused.hpp>
+#include <boost/spirit/home/support/assert_msg.hpp>
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+
+namespace boost { namespace spirit
+{
+ // Some defaults...
+
+ template <typename Domain, typename Tag, typename Enable = void>
+ struct use_operator : mpl::false_ {};
+
+ template <typename Domain, typename T, typename Enable = void>
+ struct use_function : mpl::false_ {};
+
+ template <typename Domain, typename T, typename Enable = void>
+ struct use_directive : mpl::false_ {};
+
+ template <typename Domain, typename T, typename Enable /* = void */>
+ struct is_modifier_directive : mpl::false_ {};
+
+ template <typename Domain, typename T, typename Enable = void>
+ struct use_terminal : mpl::false_ {};
+
+ template <typename Domain, typename T, typename Enable /*= void*/>
+ struct flatten_tree : mpl::false_ {};
+
+ // Our meta-compiler. This is the main engine that hooks Spirit
+ // to the proto expression template engine.
+
+ template <typename Domain>
+ struct meta_compiler
+ {
+ struct meta_grammar;
+
+ BOOST_SPIRIT_ASSERT_MSG((
+ !use_operator<Domain, proto::tag::subscript>::value
+ ), error_proto_tag_subscript_cannot_be_used, ());
+
+#if !BOOST_WORKAROUND(BOOST_MSVC, < 1400)
+ // this is the non-broken part for compilers properly supporting
+ // partial template specialization (VC7.1 does not)
+ struct cases
+ {
+ template <typename Tag, typename Enable = void>
+ struct case_
+ : proto::not_<proto::_>
+ {};
+
+ ///////////////////////////////////////////////////////////////////
+ // terminals
+ ///////////////////////////////////////////////////////////////////
+ template <typename Enable>
+ struct case_<proto::tag::terminal, Enable>
+ : proto::when<
+ proto::if_<use_terminal<Domain, proto::_value>()>,
+ detail::make_terminal<Domain>
+ >
+ {};
+
+ template <typename Tag>
+ struct case_<Tag, typename enable_if<use_operator<Domain, Tag> >::type>
+ : proto::or_<
+ ///////////////////////////////////////////////////////////////////
+ // binary operators
+ ///////////////////////////////////////////////////////////////////
+ proto::when<proto::binary_expr<Tag, meta_grammar, meta_grammar>,
+ detail::make_binary<Domain, Tag, meta_grammar>
+ >,
+ ///////////////////////////////////////////////////////////////////
+ // unary operators
+ ///////////////////////////////////////////////////////////////////
+ proto::when<proto::unary_expr<Tag, meta_grammar>,
+ detail::make_unary<Domain, Tag, meta_grammar>
+ >
+ >
+ {};
+
+ template <typename Enable>
+ struct case_<proto::tag::subscript, Enable>
+ : proto::or_<
+ ///////////////////////////////////////////////////////////////////
+ // directives
+ ///////////////////////////////////////////////////////////////////
+ proto::when<proto::binary_expr<proto::tag::subscript
+ , proto::and_<
+ proto::terminal<proto::_>
+ , proto::if_<use_directive<Domain, proto::_value >()> >
+ , meta_grammar>,
+ detail::make_directive<Domain, meta_grammar>
+ >,
+ ///////////////////////////////////////////////////////////////////
+ // semantic actions
+ ///////////////////////////////////////////////////////////////////
+ proto::when<proto::binary_expr<proto::tag::subscript
+ , meta_grammar, proto::_>,
+ detail::make_action<Domain, meta_grammar>
+ >
+ >
+ {};
+ };
+#else
+ // this part actually constitutes invalid C++ code, but it allows us to
+ // convince VC7.1 to do what we want
+ struct cases
+ {
+ template <typename Tag, typename Enable = void>
+ struct case_
+ : proto::not_<proto::_>
+ {};
+
+ ///////////////////////////////////////////////////////////////////
+ // terminals
+ ///////////////////////////////////////////////////////////////////
+ template <>
+ struct case_<proto::tag::terminal>
+ : proto::when<
+ proto::if_<use_terminal<Domain, proto::_value>()>,
+ detail::make_terminal<Domain>
+ >
+ {};
+
+ template <typename Tag>
+ struct case_<Tag>
+ : proto::or_<
+ ///////////////////////////////////////////////////////////////////
+ // binary operators
+ ///////////////////////////////////////////////////////////////////
+ proto::when<proto::binary_expr<
+ typename enable_if<use_operator<Domain, Tag>, Tag>::type
+ , meta_grammar, meta_grammar>
+ , detail::make_binary<Domain, Tag, meta_grammar>
+ >,
+ ///////////////////////////////////////////////////////////////////
+ // unary operators
+ ///////////////////////////////////////////////////////////////////
+ proto::when<proto::unary_expr<
+ typename enable_if<use_operator<Domain, Tag>, Tag>::type
+ , meta_grammar>
+ , detail::make_unary<Domain, Tag, meta_grammar>
+ >
+ >
+ {};
+
+ template <>
+ struct case_<proto::tag::subscript>
+ : proto::or_<
+ ///////////////////////////////////////////////////////////////////
+ // directives
+ ///////////////////////////////////////////////////////////////////
+ proto::when<proto::binary_expr<proto::tag::subscript
+ , proto::and_<
+ proto::terminal<proto::_>
+ , proto::if_<use_directive<Domain, proto::_value >()> >
+ , meta_grammar>,
+ detail::make_directive<Domain, meta_grammar>
+ >,
+ ///////////////////////////////////////////////////////////////////
+ // semantic actions
+ ///////////////////////////////////////////////////////////////////
+ proto::when<proto::binary_expr<proto::tag::subscript
+ , meta_grammar, proto::_>,
+ detail::make_action<Domain, meta_grammar>
+ >
+ >
+ {};
+ };
+#endif
+
+ struct meta_grammar
+ : proto::switch_<cases>
+ {};
+ };
+
+ namespace result_of
+ {
+ // Default case
+ template <typename Domain, typename Expr
+ , typename Modifiers = unused_type, typename Enable = void>
+ struct compile
+ {
+ typedef typename meta_compiler<Domain>::meta_grammar meta_grammar;
+ typedef typename meta_grammar::
+ template result<meta_grammar(Expr, mpl::void_, Modifiers)>::type
+ type;
+ };
+
+ // If Expr is not a proto expression, make it a terminal
+ template <typename Domain, typename Expr, typename Modifiers>
+ struct compile<Domain, Expr, Modifiers,
+ typename disable_if<proto::is_expr<Expr> >::type>
+ : compile<Domain, typename proto::terminal<Expr>::type, Modifiers> {};
+ }
+
+ namespace traits
+ {
+ // Check if Expr matches the domain's grammar
+ template <typename Domain, typename Expr>
+ struct matches :
+ proto::matches<
+ typename proto::result_of::as_expr<
+ typename remove_reference<Expr>::type>::type,
+ typename meta_compiler<Domain>::meta_grammar
+ >
+ {
+ };
+ }
+
+ namespace detail
+ {
+ template <typename Domain>
+ struct compiler
+ {
+ // Default case
+ template <typename Expr, typename Modifiers>
+ static typename spirit::result_of::compile<Domain, Expr, Modifiers>::type
+ compile(Expr const& expr, Modifiers modifiers, mpl::true_)
+ {
+ typename meta_compiler<Domain>::meta_grammar compiler;
+ return compiler(expr, mpl::void_(), modifiers);
+ }
+
+ // If Expr is not a proto expression, make it a terminal
+ template <typename Expr, typename Modifiers>
+ static typename spirit::result_of::compile<Domain, Expr, Modifiers>::type
+ compile(Expr const& expr, Modifiers modifiers, mpl::false_)
+ {
+ typename meta_compiler<Domain>::meta_grammar compiler;
+ typedef typename detail::as_meta_element<Expr>::type expr_;
+ typename proto::terminal<expr_>::type term = {expr};
+ return compiler(term, mpl::void_(), modifiers);
+ }
+ };
+ }
+
+ template <typename Domain, typename Expr>
+ inline typename result_of::compile<Domain, Expr, unused_type>::type
+ compile(Expr const& expr)
+ {
+ typedef typename proto::is_expr<Expr>::type is_expr;
+ return detail::compiler<Domain>::compile(expr, unused, is_expr());
+ }
+
+ template <typename Domain, typename Expr, typename Modifiers>
+ inline typename result_of::compile<Domain, Expr, Modifiers>::type
+ compile(Expr const& expr, Modifiers modifiers)
+ {
+ typedef typename proto::is_expr<Expr>::type is_expr;
+ return detail::compiler<Domain>::compile(expr, modifiers, is_expr());
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ template <typename Elements, template <typename Subject> class generator>
+ struct make_unary_composite
+ {
+ typedef typename
+ fusion::result_of::value_at_c<Elements, 0>::type
+ element_type;
+ typedef generator<element_type> result_type;
+ result_type operator()(Elements const& elements, unused_type) const
+ {
+ return result_type(fusion::at_c<0>(elements));
+ }
+ };
+
+ template <typename Elements, template <typename Left, typename Right> class generator>
+ struct make_binary_composite
+ {
+ typedef typename
+ fusion::result_of::value_at_c<Elements, 0>::type
+ left_type;
+ typedef typename
+ fusion::result_of::value_at_c<Elements, 1>::type
+ right_type;
+ typedef generator<left_type, right_type> result_type;
+
+ result_type operator()(Elements const& elements, unused_type) const
+ {
+ return result_type(
+ fusion::at_c<0>(elements)
+ , fusion::at_c<1>(elements)
+ );
+ }
+ };
+
+ template <typename Elements, template <typename Elements_> class generator>
+ struct make_nary_composite
+ {
+ typedef generator<Elements> result_type;
+ result_type operator()(Elements const& elements, unused_type) const
+ {
+ return result_type(elements);
+ }
+ };
+
+}}
+
+#endif