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Diffstat (limited to 'trunk/qpid/cpp/src/qpid/framing/TemplateVisitor.h')
-rw-r--r-- | trunk/qpid/cpp/src/qpid/framing/TemplateVisitor.h | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/trunk/qpid/cpp/src/qpid/framing/TemplateVisitor.h b/trunk/qpid/cpp/src/qpid/framing/TemplateVisitor.h deleted file mode 100644 index d6d59603f7..0000000000 --- a/trunk/qpid/cpp/src/qpid/framing/TemplateVisitor.h +++ /dev/null @@ -1,89 +0,0 @@ -#ifndef QPID_FRAMING_TEMPLATEVISITOR_H -#define QPID_FRAMING_TEMPLATEVISITOR_H - -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - * - */ -#include <boost/mpl/fold.hpp> -#include <boost/utility/value_init.hpp> - -namespace qpid { -namespace framing { - -/** - * Metafunction to generate a visitor class derived from Base, with a - * visit for each type in TypeList calling functor F. TypeList may be - * any boost::mpl type collection e.g. mpl::list. - * - * Generated class is: TemplateVisitor<Base, F, TypeList>::type - * - * @see make_visitor - */ -template <class VisitTemplate, class TypeList, class F> -class TemplateVisitor -{ - struct Base : public VisitorBase { - F action; - Base(F f) : action(f) {} - using VisitorBase::visit; - }; - - template <class B, class T> struct Visit : public B { - Visit(F action) : B(action) {} - using B::visit; - void visit(const T& body) { action(body); } - }; - - typedef typename boost::mpl::fold< - TypeList, Base, Visit<boost::mpl::placeholders::_1, - boost::mpl::placeholders::_2> - >::type type; -}; - -/** - * Construct a TemplateVisitor to perform the given action, - * for example: - * @code - */ -template <class VisitorBase, class TypeList, class F> -TemplateVisitor<VisitorBase,TypeList,F>::type make_visitor(F action) { - return TemplateVisitor<VisitorBase,TypeList,F>::type(action); -}; - -/** - * For method body classes in TypeList, invoke the corresponding function - * on Target and return true. For other body types return false. - */ -template <class TypeList, class Target> -bool invoke(const AMQBody& body, Target& target) { - typename InvokeVisitor<TypeList, Target>::type v(target); - body.accept(v); - return v.target; -} - -}} // namespace qpid::framing - - -#endif /*!QPID_FRAMING_INVOKEVISITOR_H*/ - -}} // namespace qpid::framing - - - -#endif /*!QPID_FRAMING_TEMPLATEVISITOR_H*/ |