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//
// MGOrderedDictionary.m
// MGOrderedDictionary
//
// Created by Matt Gallagher on 19/12/08.
// Modified by Gwynne Raskind on 31/12/12.
// Copyright 2008 Matt Gallagher. All rights reserved.
// Parts Copyright 2012 Gwynne Raskind. All rights reserved.
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software. Permission is granted to anyone to
// use this software for any purpose, including commercial applications, and to
// alter it and redistribute it freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source
// distribution.
//
#import "MGOrderedDictionary.h"
static NSString *DescriptionForObject(id object, id locale, NSUInteger indent)
{
if ([object respondsToSelector:@selector(descriptionWithLocale:indent:)])
return [object descriptionWithLocale:locale indent:indent];
else if ([object respondsToSelector:@selector(descriptionWithLocale:)])
return [object descriptionWithLocale:locale];
return [object description];
}
@implementation MGOrderedDictionary
- (instancetype)init
{
return [self initWithCapacity:0];
}
- (instancetype)initWithCapacity:(NSUInteger)capacity
{
self = [super init];
if (self != nil)
{
dictionary = [[NSMutableDictionary alloc] initWithCapacity:capacity];
array = [[NSMutableArray alloc] initWithCapacity:capacity];
}
return self;
}
- (instancetype)copy
{
return [self mutableCopy];
}
- (void)setObject:(id)anObject forKey:(id<NSCopying>)aKey
{
if (![dictionary objectForKey:aKey])
[array addObject:aKey];
[dictionary setObject:anObject forKey:aKey];
}
- (void)removeObjectForKey:(id)aKey
{
[dictionary removeObjectForKey:aKey];
[array removeObject:aKey];
}
- (NSUInteger)count
{
return [dictionary count];
}
- (id)objectForKey:(id)aKey
{
return [dictionary objectForKey:aKey];
}
- (NSEnumerator *)keyEnumerator
{
return [array objectEnumerator];
}
- (NSEnumerator *)reverseKeyEnumerator
{
return [array reverseObjectEnumerator];
}
- (void)insertObject:(id)anObject forKey:(id<NSCopying>)aKey atIndex:(NSUInteger)anIndex
{
[array insertObject:aKey atIndex:anIndex];
[dictionary setObject:anObject forKey:aKey];
}
- (id)keyAtIndex:(NSUInteger)anIndex
{
return [array objectAtIndex:anIndex];
}
- (id)objectAtIndexedSubscript:(NSUInteger)idx
{
return [self keyAtIndex:idx];
}
- (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)idx __attribute__((noreturn))
{
@throw [NSException exceptionWithName:NSInternalInconsistencyException reason:@"Can't set indexed object on ordered dictionary" userInfo:nil];
}
- (id)objectForKeyedSubscript:(id)key
{
return [self objectForKey:key];
}
- (void)setObject:(id)obj forKeyedSubscript:(id<NSCopying>)key
{
[self setObject:obj forKey:key];
}
- (NSUInteger)indexOfKey:(id)anObject
{
return [array indexOfObject:anObject];
}
- (NSUInteger)indexOfKey:(id)anObject inRange:(NSRange)range
{
return [array indexOfObject:anObject inRange:range];
}
- (NSUInteger)indexOfKeyIdenticalTo:(id)anObject
{
return [array indexOfObjectIdenticalTo:anObject];
}
- (NSUInteger)indexOfKeyIdenticalTo:(id)anObject inRange:(NSRange)range
{
return [array indexOfObjectIdenticalTo:anObject inRange:range];
}
- (id)lastKey
{
return [array lastObject];
}
- (void)sortUsingFunction:(NSInteger (*)(id, id, void *))compare context:(void *)context
{
[array sortUsingFunction:compare context:context];
}
- (void)sortUsingSelector:(SEL)comparator
{
[array sortUsingSelector:comparator];
}
#if NS_BLOCKS_AVAILABLE
- (void)sortUsingComparator:(NSComparator)cmptr
{
[array sortUsingComparator:cmptr];
}
- (void)sortWithOptions:(NSSortOptions)opts usingComparator:(NSComparator)cmptr
{
[array sortWithOptions:opts usingComparator:cmptr];
}
#endif
- (NSString *)descriptionWithLocale:(id)locale
{
return [self descriptionWithLocale:locale indent:0];
}
- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level
{
NSMutableString *indentString = [NSMutableString string];
for (NSUInteger i = 0; i < level; i++)
[indentString appendString:@"\t"];
NSMutableString *description = [NSMutableString stringWithFormat:@"%@{\n", indentString];
for (id key in array)
{
[description appendFormat:@"%@\t%@ = %@;\n",
indentString, DescriptionForObject(key, locale, level), DescriptionForObject(self[key], locale, level)];
}
[description appendFormat:@"%@}\n", indentString];
return description;
}
@end
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