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An Objective-C pattern for making sum types - ExampleFoo.h
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#import "Example.h" // https://gist.github.com/hborders/2af9b39e27b62ef9e68c65085126fe4a | |
@interface ExampleFoo : Example | |
@property (nonatomic, readonly) NSString * _Nonnull f; | |
@property (nonatomic, readonly) NSString * _Nonnull g; | |
+ (instancetype _Nonnull)new NS_UNAVAILABLE; | |
- (instancetype _Nonnull)init NS_UNAVAILABLE; | |
- (instancetype _Nonnull)initWithF:(NSString * _Nonnull)f | |
g:(NSString * _Nonnull)g NS_DESIGNATED_INITIALIZER; | |
@end |
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