| /* |
| * 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. |
| */ |
| |
| /* |
| * $Id$ |
| */ |
| |
| #if !defined(XERCESC_INCLUDE_GUARD_DOMCASTS_HPP) |
| #define XERCESC_INCLUDE_GUARD_DOMCASTS_HPP |
| |
| // |
| // This file is part of the internal implementation of the C++ XML DOM. |
| // It should NOT be included or used directly by application programs. |
| // |
| // Applications should include the file <xercesc/dom/DOM.hpp> for the entire |
| // DOM API, or xercesc/dom/DOM*.hpp for individual DOM classes, where the class |
| // name is substituded for the *. |
| // |
| |
| // |
| // Define inline casting functions to convert from |
| // (DOMNode*) to the embedded instances of DOMNodeImpl, |
| // DOMParentNode, and DOMChildNode. |
| // |
| // Each type of embedded object corresponds to a HasXXX virtual |
| // interface class that a given DOM implementation class will |
| // support to expose its embedded object(s) to other implementation |
| // classes. |
| // |
| // This replaces the previous implementation that relied upon unsafe |
| // casts and member offsets that rely on unspecified behavior in C++, |
| // with a hopefully small cost in memory and performance. |
| // |
| |
| #include <xercesc/dom/DOMException.hpp> |
| #include "DOMNodeBase.hpp" |
| #include "DOMElementImpl.hpp" |
| #include "DOMTextImpl.hpp" |
| |
| namespace XERCES_CPP_NAMESPACE { |
| |
| |
| static inline const DOMNodeImpl *castToNodeImpl(const DOMNode *p) |
| { |
| const HasDOMNodeImpl* pE = dynamic_cast<const HasDOMNodeImpl*>(p); |
| if (!pE || !pE->getNodeImpl()) { |
| throw DOMException(DOMException::INVALID_STATE_ERR, 0, XMLPlatformUtils::fgMemoryManager); |
| } |
| return pE->getNodeImpl(); |
| } |
| |
| static inline DOMNodeImpl *castToNodeImpl(DOMNode *p) |
| { |
| HasDOMNodeImpl *pE = dynamic_cast<HasDOMNodeImpl*>(p); |
| if (!pE || !pE->getNodeImpl()) { |
| throw DOMException(DOMException::INVALID_STATE_ERR, 0, XMLPlatformUtils::fgMemoryManager); |
| } |
| return pE->getNodeImpl(); |
| } |
| |
| static inline const DOMParentNode *castToParentImpl(const DOMNode *p) { |
| const HasDOMParentImpl *pE = dynamic_cast<const HasDOMParentImpl*>(p); |
| if (!pE || !pE->getParentNodeImpl()) { |
| throw DOMException(DOMException::INVALID_STATE_ERR, 0, XMLPlatformUtils::fgMemoryManager); |
| } |
| return pE->getParentNodeImpl(); |
| } |
| |
| static inline DOMParentNode *castToParentImpl(DOMNode *p) { |
| HasDOMParentImpl *pE = dynamic_cast<HasDOMParentImpl*>(p); |
| if (!pE || !pE->getParentNodeImpl()) { |
| throw DOMException(DOMException::INVALID_STATE_ERR, 0, XMLPlatformUtils::fgMemoryManager); |
| } |
| return pE->getParentNodeImpl(); |
| } |
| |
| static inline const DOMChildNode *castToChildImpl(const DOMNode *p) { |
| const HasDOMChildImpl *pE = dynamic_cast<const HasDOMChildImpl*>(p); |
| if (!pE || !pE->getChildNodeImpl()) { |
| throw DOMException(DOMException::INVALID_STATE_ERR, 0, XMLPlatformUtils::fgMemoryManager); |
| } |
| return pE->getChildNodeImpl(); |
| } |
| |
| static inline DOMChildNode *castToChildImpl(DOMNode *p) { |
| HasDOMChildImpl *pE = dynamic_cast<HasDOMChildImpl*>(p); |
| if (!pE || !pE->getChildNodeImpl()) { |
| throw DOMException(DOMException::INVALID_STATE_ERR, 0, XMLPlatformUtils::fgMemoryManager); |
| } |
| return pE->getChildNodeImpl(); |
| } |
| |
| } |
| |
| #endif |