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// -*- mode: ObjC -*-
// This file is part of class-dump, a utility for examining the Objective-C segment of Mach-O files.
// Copyright (C) 1997-1998, 2000-2001, 2004-2009 Steve Nygard.
#import "NSArray-Extensions.h"
#import <Foundation/Foundation.h>
#import "CDTopoSortNode.h"
@implementation NSArray (CDExtensions)
- (NSArray *)reversedArray;
return [[self reverseObjectEnumerator] allObjects];
- (NSArray *)arrayByMappingSelector:(SEL)aSelector;
NSMutableArray *newArray;
newArray = [NSMutableArray array];
for (id object in self) {
id value = [object performSelector:aSelector];
if (value != nil)
[newArray addObject:value];
// TODO (2004-01-28): Or we could add NSNull.
return newArray;
@implementation NSArray (CDTopoSort)
- (NSArray *)topologicallySortedArray;
NSMutableDictionary *nodesByName;
NSMutableArray *sortedArray;
NSArray *allNodes;
nodesByName = [[NSMutableDictionary alloc] init];
for (id <CDTopologicalSort> anObject in self) {
NSString *identifier;
CDTopoSortNode *aNode;
aNode = [[CDTopoSortNode alloc] initWithObject:anObject];
[aNode addDependanciesFromArray:[anObject dependancies]];
identifier = [aNode identifier];
if ([nodesByName objectForKey:identifier] != nil)
NSLog(@"Warning: Duplicate identifier (%@) in %s", identifier, _cmd);
[nodesByName setObject:aNode forKey:identifier];
[aNode release];
sortedArray = [NSMutableArray array];
allNodes = [[nodesByName allValues] sortedArrayUsingSelector:@selector(ascendingCompareByIdentifier:)];
for (CDTopoSortNode *aNode in allNodes) {
if ([aNode color] == CDWhiteNodeColor)
[aNode topologicallySortNodes:nodesByName intoArray:sortedArray];
[nodesByName release];
return sortedArray;
@implementation NSMutableArray (CDTopoSort)
- (void)sortTopologically;
NSArray *sortedArray;
sortedArray = [self topologicallySortedArray];
assert([self count] == [sortedArray count]);
[self removeAllObjects];
[self addObjectsFromArray:sortedArray];