Structure for assigning values using keypath
Suppose we have the following model.
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
let propertyMap: [PartialKeyPath<CALayerModel>: ReferenceWritableKeyPathValueApplier<CALayer>] = [
\.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.
extension CALayerModel {
public func applyProperties(to target: CALayer) {
Self.propertyMap.forEach { keyPath, applier in
let value = self[keyPath: keyPath]
applier.apply(value, target)
}
}
}