https://github.com/p-x9/keypathvalue

🔑 Structure for assigning values using keypath
https://github.com/p-x9/keypathvalue

swift swiftpackage

Last synced: 8 months ago
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🔑 Structure for assigning values using keypath

• Host: GitHub
• URL: https://github.com/p-x9/keypathvalue
• Owner: p-x9
• License: mit
• Created: 2022-11-14T13:06:16.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2024-04-01T14:25:22.000Z (about 2 years ago)
• Last Synced: 2024-10-08T04:31:09.343Z (over 1 year ago)
• Topics: swift, swiftpackage
• Language: Swift
• Homepage:
• Size: 14.6 KB
• Stars: 4
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# KeyPathValue

Structure for assigning values using keypath

## Example

### ReferenceWritableKeyPathValueApplier

Suppose we have the following model.

```swift

struct CALayerModel {

    var bounds: CGRect?

    var position: CGPoint?

    var frame: CGRect?

    var backgroundColor: CGColor?

    var cornerRadius: CGFloat?

    var borderWidth: CGFloat?

    var borderColor: CGColor?

}

```

Define propertyMap using `ReferenceWritableKeyPathValueApplier`

```swift

let propertyMap: [PartialKeyPath: ReferenceWritableKeyPathValueApplier] = [

        \.bounds: .init(\.bounds),

         \.position: .init(\.position),

         \.frame: .init(\.frame),

         \.backgroundColor: .init(\.backgroundColor),

         \.cornerRadius: .init(\.cornerRadius),

         \.borderWidth: .init(\.borderWidth),

         \.borderColor: .init(\.borderColor)

    ]

```

Can be assigned to an object using propertyMap.

```swift

extension CALayerModel {

    public func applyProperties(to target: CALayer) {

        Self.propertyMap.forEach { keyPath, applier in

            let value = self[keyPath: keyPath]

            applier.apply(value, target)

        }

    }

}

```