1 /* 2 * [The "BSD license"] 3 * Copyright (c) 2011 Terence Parr and Alan Condit 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 #import <Foundation/Foundation.h> 29 30 /** 31 * Iterator for an array so I don't have to copy the array to a List 32 * just to make it iteratable. 33 */ 34 35 /* 36 * this is the state structure for FastEnumeration 37 typedef struct { 38 unsigned long state; 39 id *itemsPtr; 40 unsigned long *mutationsPtr; 41 unsigned long extra[5]; 42 } NSFastEnumerationState; 43 */ 44 45 @interface ArrayIterator : NSObject { 46 47 __strong id peekObj; 48 /** 49 * NSArrays are fixed size; precompute count. 50 */ 51 NSInteger count; 52 NSInteger index; 53 __strong NSArray *anArray; 54 55 } 56 57 + (ArrayIterator *) newIterator:(NSArray *)array; 58 + (ArrayIterator *) newIteratorForDictKey:(NSDictionary *)dict; 59 + (ArrayIterator *) newIteratorForDictObj:(NSDictionary *)dict; 60 61 - (id) initWithArray:(NSArray *)array; 62 - (id) initWithDictKey:(NSDictionary *)dict; 63 - (id) initWithDictObj:(NSDictionary *)dict; 64 65 - (BOOL) hasNext; 66 - (id) nextObject; 67 - (NSArray *)allObjects; 68 - (void) removeObjectAtIndex:(NSInteger)idx; 69 - (NSInteger) count; 70 - (void) setCount:(NSInteger)cnt; 71 - (void) dealloc; 72 73 @property (retain) id peekObj; 74 @property (assign, getter=count, setter=setCount:) NSInteger count; 75 @property (assign) NSInteger index; 76 @property (retain) NSArray *anArray; 77 78 @end 79