Swift Builder Pattern way to write AutoLayout code

AutoLayoutBuilder.swift

/**
Builder Pattern way to write AutoLayout code

Example:
```swift
AutoLayoutBuilder(button)
	.bottomTo(view.layoutMarginsGuide.bottomAnchor)
	.centerXTo(view.centerXAnchor)
	.width(value: button.width)
	.height(value: button.height)
	.build()
```
*/
struct AutoLayoutBuilder {
	
	let view: UIView
	
	init(_ view: UIView) {
		self.view = view
	}
	
	@discardableResult
	func topTo(_ anchor: NSLayoutYAxisAnchor, value: CGFloat = 0) -> AutoLayoutBuilder {
		view.topAnchor.constraint(equalTo: anchor, constant: value).isActive = true
		return self
	}
	
	@discardableResult
	func bottomTo(_ anchor: NSLayoutYAxisAnchor, value: CGFloat = 0) -> AutoLayoutBuilder {
		view.bottomAnchor.constraint(equalTo: anchor, constant: -value).isActive = true
		return self
	}
	
	@discardableResult
	func leadingTo(_ anchor: NSLayoutXAxisAnchor, value: CGFloat = 0) -> AutoLayoutBuilder {
		view.leadingAnchor.constraint(equalTo: anchor, constant: value).isActive = true
		return self
	}
	
	@discardableResult
	func trailingTo(_ anchor: NSLayoutXAxisAnchor, value: CGFloat = 0) -> AutoLayoutBuilder {
		view.trailingAnchor.constraint(equalTo: anchor, constant: -value).isActive = true
		return self
	}
	
	@discardableResult
	func centerXTo(_ anchor: NSLayoutXAxisAnchor, value: CGFloat = 0) -> AutoLayoutBuilder {
		view.centerXAnchor.constraint(equalTo: anchor, constant: value).isActive = true
		return self
	}
	
	@discardableResult
	func centerYTo(_ anchor: NSLayoutYAxisAnchor, value: CGFloat = 0) -> AutoLayoutBuilder {
		view.centerYAnchor.constraint(equalTo: anchor, constant: value).isActive = true
		return self
	}
	
	@discardableResult
	func centerInParent(_ view: UIView) -> AutoLayoutBuilder {
		centerXTo(view.centerXAnchor)
		centerYTo(view.centerYAnchor)
		return self
	}
	
	@discardableResult
	func width(value: CGFloat) -> AutoLayoutBuilder {
		view.widthAnchor.constraint(equalToConstant: value).isActive = true
		return self
	}
	
	@discardableResult
	func height(value: CGFloat) -> AutoLayoutBuilder {
		view.heightAnchor.constraint(equalToConstant: value).isActive = true
		return self
	}
	
	func build() {
		view.translatesAutoresizingMaskIntoConstraints = false
	}
	
}