SmalltalkCollections

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Requirements

Installation

SmalltalkCollections is meant to be available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "SmalltalkCollections"

But I am not at all certain I have the pod manifest correct. So downloading and just adding the files to your project might be your best bet. Experienced pod builders that want to help - pull requests would be super welcome.

Available Methods

@interface NSArray (SmalltalkCollections)

- (instancetype)do:(ElementMutator)block;
- (instancetype)doWithIndex:(IndexedMutator)block;
- (instancetype)collect:(ElementTransformer)block;
- (instancetype)collectWithIndex:(IndexedTransformer)block;
- (id)detect:(ElementFilter)block;
- (id)detect:(ElementFilter)block ifNone:(ElementDefault)none;
- (id)inject:(id)initial into:(ElementInjector)block;
- (instancetype)reject:(ElementFilter)block;
- (instancetype)select:(ElementFilter)block;

-(instancetype)copyWithout:(id)object;
-(instancetype)copyWith:(id)object;

-(id)at:(NSUInteger)idx;
-(id)at:(NSUInteger)idx ifAbsent:(ElementDefault)block;

@end

@interface NSDictionary (SmalltalkCollections)

- (instancetype)keysAndValuesDo:(PairedMutator)block;
- (instancetype)do:(ElementMutator)block;
- (instancetype)keysDo:(ElementMutator)block;
- (instancetype)valuesDo:(ElementMutator)block;
- (instancetype)collect:(ElementTransformer)block;
- (id)inject:(id)initial into:(ElementInjector)block;
- (instancetype)reject:(ElementFilter)block;
- (instancetype)select:(ElementFilter)block;

-(id)at:(id)key;
-(id)at:(id)key ifAbsent:(ElementDefault)block;

@end

@interface NSSet (SmalltalkCollections)

- (instancetype)do:(ElementMutator)block;
- (instancetype)collect:(ElementTransformer)block;
- (id)inject:(id)initial into:(ElementInjector)block;
- (instancetype)reject:(ElementFilter)block;
- (instancetype)select:(ElementFilter)block;

-(instancetype)copyWithout:(id)object;
-(instancetype)copyWith:(id)object;

@end

@interface NSString (SmalltalkCollections)

-(NSString*)collect:(CharacterTransformer)block;
-(NSString*)select:(CharacterFilter)block;
-(NSString*)reject:(CharacterFilter)block;
-(NSString*)detect:(CharacterFilter)block;
-(void)do:(CharacterMutator)block;
-(void)linesDo:(StringMutator)block;

@end

@interface NSNumber (Collections)

-(void)timesRepeat:(ElementDefault)block;
-(void)to:(NSInteger)stop do:(ElementIterator)block;
-(void)to:(NSInteger)stop by:(NSInteger)step do:(ElementIterator)block;
-(NSArray*)to:(NSInteger)stop collect:(ElementIndexedMutator)block;
-(NSArray*)to:(NSInteger)stop by:(NSInteger)step collect:(ElementIndexedMutator)block;

@end

Examples

NSArray* colors = @[@"red", @"yellow", @"blue", @"orange", @"green", @"violet"];

// iteration
[colors do:^(NSString* s) { NSLog(@"%@",s); }];
// map or mutation
[colors collect:^(NSString* s) { return [s uppercaseString]; }];
// filtering
[colors select:^(NSString* s) { return [s isEqualToString: @"orange"] || [s isEqualToString: @"red"]; }];

Author

tblanchard, tblanchard@mac.com

License

SmalltalkCollections is available under the MIT license. See the LICENSE file for more info.