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/* Protocol for Objective-C objects holding (keyElement,contentElement) pairs.
Copyright (C) 1993 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@cs.rochester.edu>
Dept. of Computer Science, U. of Rochester, Rochester, NY 14627
This file is part of the GNU Objective-C Collection library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* The <KeyedCollecting> protocol inherits from the <Collecting> protocol.
The <KeyedCollecting> protocol defines the interface to a
collection of elements that are accessible by a key, where the key is
some unique element. Pairs of (key element, content element) may be
added, removed and replaced. The keys and contents may be tested,
enumerated and copied.
*/
#ifndef __KeyedCollecting_h_GNU_INCLUDE
#define __KeyedCollecting_h_GNU_INCLUDE
#include <coll/Collecting.h>
@protocol KeyedCollecting <Collecting>
// ADDING;
- insertObject: newContentObject atKey: (elt)aKey;
// REPLACING AND SWAPPING;
- replaceObjectAtKey: (elt)aKey with: newContentObject;
- swapAtKeys: (elt)key1 : (elt)key2;
// REMOVING;
- removeObjectAtKey: (elt)aKey;
// GETTING ELEMENTS AND KEYS;
- objectAtKey: (elt)aKey;
- keyObjectOfObject: aContentObject; /* modeled on 'indexOfObject:' */
// TESTING;
- (BOOL) includesKey: (elt)aKey;
// ENUMERATIONS;
- withKeyObjectsCall: (void(*)(id))aFunc;
- withKeyObjectsAndContentObjectsCall: (void(*)(id,id))aFunc;
- withKeyObjectsAndContentObjectsCall: (void(*)(id,id))aFunc
whileTrue: (BOOL *)flag;
// ENUMERATING WHILE CHANGING CONTENTS;
- safeWithKeyObjectsCall: (void(*)(id))aFunc;
- safeWithKeyObjectsAndContentObjectsCall: (void(*)(id,id))aFunc;
- safeWithKeyObjectsAndContentObjectsCall: (void(*)(id,id))aFunc
whileTrue: (BOOL *)flag;
// NON-OBJECT ELEMENT METHOD NAMES;
// INITIALIZING;
- initEncoding: (const char *)contentsEncoding
keyEncoding: (const char *)keyEncoding;
- initKeyEncoding: (const char *)keyEncoding;
// ADDING;
- insertElement: (elt)newContentElement atKey: (elt)aKey;
// REPLACING;
- (elt) replaceElementAtKey: (elt)aKey with: (elt)newContentElement;
- (elt) replaceElementAtKey: (elt)aKey with: (elt)newContentElement
ifAbsentCall: (elt(*)(arglist_t))excFunc;
// REMOVING;
- (elt) removeElementAtKey: (elt)aKey;
- (elt) removeElementAtKey: (elt)aKey ifAbsentCall: (elt(*)(arglist_t))excFunc;
// GETTING ELEMENTS AND KEYS;
- (elt) elementAtKey: (elt)aKey;
- (elt) elementAtKey: (elt)aKey ifAbsentCall: (elt(*)(arglist_t))excFunc;
- (elt) keyElementOfElement: (elt)aContentObject;
- (elt) keyElementOfElement: (elt)aContentObject
ifAbsentCall: (elt(*)(arglist_t))excFunc;
// TESTING;
- (const char *) keyEncoding;
// ENUMERATING;
- (BOOL) getNextKey: (elt*)aKeyPtr content: (elt*)anElementPtr
withEnumState: (void**)enumState;
- withKeyElementsCall: (void(*)(elt))aFunc;
- withKeyElementsAndContentElementsCall: (void(*)(elt,elt))aFunc;
- withKeyElementsAndContentElementsCall: (void(*)(elt,elt))aFunc
whileTrue: (BOOL *)flag;
// ENUMERATING WHILE CHANGING CONTENTS;
- safeWithKeyElementsCall: (void(*)(elt))aFunc;
- safeWithKeyElementsAndContentElementsCall: (void(*)(elt,elt))aFunc;
- safeWithKeyElementsAndContentElementsCall: (void(*)(elt,elt))aFunc
whileTrue: (BOOL *)flag;
@end
#endif /* __KeyedCollecting_h_GNU_INCLUDE */
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