| /************************************************************** |
| * |
| * 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. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef ADC_CPP_SUB_PE_HXX |
| #define ADC_CPP_SUB_PE_HXX |
| |
| |
| |
| // USED SERVICES |
| // BASE CLASSES |
| // COMPONENTS |
| // PARAMETERS |
| |
| |
| class ParseEnvironment; |
| |
| template <class PE, class SUB> |
| class SubPe |
| { |
| public: |
| typedef SubPe< PE, SUB > self; |
| |
| SubPe( |
| PE & i_rParent ); |
| PE & Parent() const; |
| SUB & Child() const; |
| |
| ParseEnvironment & Get() const; |
| |
| private: |
| SUB & CreateChild() const; |
| |
| PE & rParent; |
| Dyn<SUB> pChild; |
| }; |
| |
| |
| |
| // IMPLEMENTATION |
| |
| |
| // SubPe |
| |
| template <class PE, class SUB> |
| SubPe<PE,SUB>::SubPe( PE & i_rParent ) |
| : rParent(i_rParent) |
| { |
| } |
| |
| template <class PE, class SUB> |
| PE & |
| SubPe<PE,SUB>::Parent() const |
| { |
| return rParent; |
| } |
| |
| template <class PE, class SUB> |
| inline SUB & |
| SubPe<PE,SUB>::Child() const |
| { |
| return pChild ? *pChild.MutablePtr() : CreateChild(); |
| } |
| |
| template <class PE, class SUB> |
| ParseEnvironment & |
| SubPe<PE,SUB>::Get() const |
| { |
| return Child(); |
| } |
| |
| template <class PE, class SUB> |
| SUB & |
| SubPe<PE,SUB>::CreateChild() const |
| { |
| self * pThis = const_cast< self* >(this); |
| |
| SUB * pNewChild = new SUB( &rParent); |
| |
| pThis->pChild = pNewChild; |
| |
| return *pChild.MutablePtr(); |
| } |
| |
| |
| |
| |
| #endif |
| |