130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun/* 230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Copyright 2011 Google Inc. All Rights Reserved. 330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Licensed under the Apache License, Version 2.0 (the "License"); 530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * you may not use this file except in compliance with the License. 630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * You may obtain a copy of the License at 730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * http://www.apache.org/licenses/LICENSE-2.0 930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 1030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Unless required by applicable law or agreed to in writing, software 1130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * distributed under the License is distributed on an "AS IS" BASIS, 1230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * See the License for the specific language governing permissions and 1430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * limitations under the License. 1530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun */ 1630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 1730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#ifndef SFNTLY_CPP_SRC_SFNTLY_PORT_JAVA_ITERATOR_H_ 1830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#define SFNTLY_CPP_SRC_SFNTLY_PORT_JAVA_ITERATOR_H_ 1930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#include "sfntly/port/refcount.h" 2130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun// Interface of Java iterator. 2330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun// This is a forward read-only iterator that represents java.util.Iterator<E> 2430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurunnamespace sfntly { 2630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntemplate <typename ReturnType, typename ContainerBase> 2830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurunclass Iterator : public virtual RefCount { 2930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public: 3030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ~Iterator() {} 3130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ContainerBase* container_base() = 0; 3230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 3330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun protected: 3430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Iterator() {} 3530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun NO_COPY_AND_ASSIGN(Iterator); 3630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun}; 3730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 3830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntemplate <typename ReturnType, typename Container, 3930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun typename ContainerBase = Container> 4030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurunclass PODIterator : public Iterator<ReturnType, ContainerBase>, 4130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public RefCounted< PODIterator<ReturnType, Container> > { 4230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public: 4330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun explicit PODIterator(Container* container) : container_(container) {} 4430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ~PODIterator() {} 4530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ContainerBase* container_base() { 4630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun return static_cast<ContainerBase*>(container_); 4730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun } 4830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 4930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual bool HasNext() = 0; 5030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ReturnType Next() = 0; 5130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual void Remove() { 5230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#if !defined (SFNTLY_NO_EXCEPTION) 5330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Default to no support. 5430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun throw UnsupportedOperationException(); 5530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#endif 5630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun } 5730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 5830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun protected: 5930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Container* container() { return container_; } 6030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 6130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun private: 6230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Container* container_; // Dumb pointer is used to avoid circular ref-counting 6330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun}; 6430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 6530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntemplate <typename ReturnType, typename Container, 6630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun typename ContainerBase = Container> 6730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurunclass RefIterator : public Iterator<ReturnType, ContainerBase>, 6830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public RefCounted< RefIterator<ReturnType, Container> > { 6930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public: 7030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun explicit RefIterator(Container* container) : container_(container) {} 7130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ~RefIterator() {} 7230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ContainerBase* container_base() { 7330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun return static_cast<ContainerBase*>(container_); 7430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun } 7530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 7630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual bool HasNext() = 0; 7730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun CALLER_ATTACH virtual ReturnType* Next() = 0; 7830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual void Remove() { 7930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#if !defined (SFNTLY_NO_EXCEPTION) 8030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Default to no support. 8130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun throw UnsupportedOperationException(); 8230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#endif 8330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun } 8430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 8530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun protected: 8630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Container* container() { return container_; } 8730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 8830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun private: 8930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Container* container_; // Dumb pointer is used to avoid circular ref-counting 9030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun}; 9130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 9230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun} // namespace sfntly 9330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 9430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#endif // SFNTLY_CPP_SRC_SFNTLY_PORT_JAVA_ITERATOR_H_ 95