Created
October 8, 2019 18:27
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This very useful to make the methods weak
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| // | |
| // Created by Douglas Mendes on 2019-10-08. | |
| // Copyright (c) 2019 Douglas Mendes. All rights reserved. | |
| // | |
| import Foundation | |
| func weakify<TargetType: AnyObject>(_ target: TargetType, | |
| _ targetMethod: @escaping (TargetType) -> () -> Void) -> (() -> Void) { | |
| return { [weak target] in | |
| if let strongReferenceTarget = target { | |
| targetMethod(strongReferenceTarget)() | |
| } | |
| } | |
| } | |
| // swiftlint:disable identifier_name | |
| func weakify<TargetType: AnyObject, U>(_ target: TargetType, | |
| _ targetMethod: @escaping (TargetType) -> (U) -> Void) -> ((U) -> Void) { | |
| return { [weak target] (u: U) in | |
| if let strongReferenceTarget = target { | |
| targetMethod(strongReferenceTarget)(u) | |
| } | |
| } | |
| } | |
| // swiftlint:disable identifier_name | |
| func weakify<TargetType: AnyObject, U>(_ target: TargetType, _ targetMethod: @escaping (TargetType) -> (U?) -> Void) | |
| -> ((U?) -> Void) { | |
| return { [weak target] (u: U?) in | |
| if let strongReferenceTarget = target { | |
| targetMethod(strongReferenceTarget)(u) | |
| } | |
| } | |
| } | |
| // swiftlint:disable identifier_name | |
| func weakify<TargetType: AnyObject, U, V>(_ target: TargetType, | |
| _ targetMethod: @escaping (TargetType) | |
| -> (U?, V) -> Void) -> ((U?, V) -> Void) { | |
| return { [weak target] (u: U?, v: V) in | |
| if let strongReferenceTarget = target { | |
| targetMethod(strongReferenceTarget)(u, v) | |
| } | |
| } | |
| } | |
| func weakify<TargetType: AnyObject, U, V>(_ valueForSelf: TargetType, | |
| _ targetMethod: @escaping (TargetType) -> (U, V) -> Void) | |
| -> ((U, V) -> Void) { | |
| return { [weak valueForSelf] (u: U, v: V) in | |
| if let valueForSelf = valueForSelf { | |
| targetMethod(valueForSelf)(u, v) | |
| } | |
| } | |
| } |
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