| // |
| // MTLValueTransformer.h |
| // Mantle |
| // |
| // Created by Justin Spahr-Summers on 2012-09-11. |
| // Copyright (c) 2012 GitHub. All rights reserved. |
| // |
| |
| #import <Foundation/Foundation.h> |
| |
| typedef id (^MTLValueTransformerBlock)(id); |
| |
| // |
| // A value transformer supporting block-based transformation. |
| // |
| @interface MTLValueTransformer : NSValueTransformer |
| |
| // Returns a transformer which transforms values using the given block. Reverse |
| // transformations will not be allowed. |
| + (instancetype)transformerWithBlock:(MTLValueTransformerBlock)transformationBlock; |
| |
| // Returns a transformer which transforms values using the given block, for |
| // forward or reverse transformations. |
| + (instancetype)reversibleTransformerWithBlock:(MTLValueTransformerBlock)transformationBlock; |
| |
| // Returns a transformer which transforms values using the given blocks. |
| + (instancetype)reversibleTransformerWithForwardBlock:(MTLValueTransformerBlock)forwardBlock reverseBlock:(MTLValueTransformerBlock)reverseBlock; |
| |
| @end |
