1*1c78a5d6SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*1c78a5d6SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*1c78a5d6SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*1c78a5d6SAndrew Rist * distributed with this work for additional information 6*1c78a5d6SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*1c78a5d6SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*1c78a5d6SAndrew Rist * "License"); you may not use this file except in compliance 9*1c78a5d6SAndrew Rist * with the License. You may obtain a copy of the License at 10cdf0e10cSrcweir * 11*1c78a5d6SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12cdf0e10cSrcweir * 13*1c78a5d6SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*1c78a5d6SAndrew Rist * software distributed under the License is distributed on an 15*1c78a5d6SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*1c78a5d6SAndrew Rist * KIND, either express or implied. See the License for the 17*1c78a5d6SAndrew Rist * specific language governing permissions and limitations 18*1c78a5d6SAndrew Rist * under the License. 19cdf0e10cSrcweir * 20*1c78a5d6SAndrew Rist *************************************************************/ 21*1c78a5d6SAndrew Rist 22*1c78a5d6SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef ADC_CPP_SUB_PE_HXX 25cdf0e10cSrcweir #define ADC_CPP_SUB_PE_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir 28cdf0e10cSrcweir 29cdf0e10cSrcweir // USED SERVICES 30cdf0e10cSrcweir // BASE CLASSES 31cdf0e10cSrcweir // COMPONENTS 32cdf0e10cSrcweir // PARAMETERS 33cdf0e10cSrcweir 34cdf0e10cSrcweir 35cdf0e10cSrcweir class ParseEnvironment; 36cdf0e10cSrcweir 37cdf0e10cSrcweir template <class PE, class SUB> 38cdf0e10cSrcweir class SubPe 39cdf0e10cSrcweir { 40cdf0e10cSrcweir public: 41cdf0e10cSrcweir typedef SubPe< PE, SUB > self; 42cdf0e10cSrcweir 43cdf0e10cSrcweir SubPe( 44cdf0e10cSrcweir PE & i_rParent ); 45cdf0e10cSrcweir PE & Parent() const; 46cdf0e10cSrcweir SUB & Child() const; 47cdf0e10cSrcweir 48cdf0e10cSrcweir ParseEnvironment & Get() const; 49cdf0e10cSrcweir 50cdf0e10cSrcweir private: 51cdf0e10cSrcweir SUB & CreateChild() const; 52cdf0e10cSrcweir 53cdf0e10cSrcweir PE & rParent; 54cdf0e10cSrcweir Dyn<SUB> pChild; 55cdf0e10cSrcweir }; 56cdf0e10cSrcweir 57cdf0e10cSrcweir 58cdf0e10cSrcweir 59cdf0e10cSrcweir // IMPLEMENTATION 60cdf0e10cSrcweir 61cdf0e10cSrcweir 62cdf0e10cSrcweir // SubPe 63cdf0e10cSrcweir 64cdf0e10cSrcweir template <class PE, class SUB> 65cdf0e10cSrcweir SubPe<PE,SUB>::SubPe( PE & i_rParent ) 66cdf0e10cSrcweir : rParent(i_rParent) 67cdf0e10cSrcweir { 68cdf0e10cSrcweir } 69cdf0e10cSrcweir 70cdf0e10cSrcweir template <class PE, class SUB> 71cdf0e10cSrcweir PE & 72cdf0e10cSrcweir SubPe<PE,SUB>::Parent() const 73cdf0e10cSrcweir { 74cdf0e10cSrcweir return rParent; 75cdf0e10cSrcweir } 76cdf0e10cSrcweir 77cdf0e10cSrcweir template <class PE, class SUB> 78cdf0e10cSrcweir inline SUB & 79cdf0e10cSrcweir SubPe<PE,SUB>::Child() const 80cdf0e10cSrcweir { 81cdf0e10cSrcweir return pChild ? *pChild.MutablePtr() : CreateChild(); 82cdf0e10cSrcweir } 83cdf0e10cSrcweir 84cdf0e10cSrcweir template <class PE, class SUB> 85cdf0e10cSrcweir ParseEnvironment & 86cdf0e10cSrcweir SubPe<PE,SUB>::Get() const 87cdf0e10cSrcweir { 88cdf0e10cSrcweir return Child(); 89cdf0e10cSrcweir } 90cdf0e10cSrcweir 91cdf0e10cSrcweir template <class PE, class SUB> 92cdf0e10cSrcweir SUB & 93cdf0e10cSrcweir SubPe<PE,SUB>::CreateChild() const 94cdf0e10cSrcweir { 95cdf0e10cSrcweir self * pThis = const_cast< self* >(this); 96cdf0e10cSrcweir 97cdf0e10cSrcweir SUB * pNewChild = new SUB( &rParent); 98cdf0e10cSrcweir 99cdf0e10cSrcweir pThis->pChild = pNewChild; 100cdf0e10cSrcweir 101cdf0e10cSrcweir return *pChild.MutablePtr(); 102cdf0e10cSrcweir } 103cdf0e10cSrcweir 104cdf0e10cSrcweir 105cdf0e10cSrcweir 106cdf0e10cSrcweir 107cdf0e10cSrcweir #endif 108cdf0e10cSrcweir 109