How to conditionally apply modifier in SwiftUI

Issue #633

Use autoclosure and AnyView

@available(iOS 13.0, OSX 10.15, tvOS 13.0, watchOS 6.0, *)
public extension View {
    func applyIf<T: View>(_ condition: @autoclosure () -> Bool, apply: (Self) -> T) -> AnyView {
        if condition() {
            return apply(self).erase()
        } else {
            return self.erase()
        }
    }
}

Button(action: onSearch) {
    Image("search")
        .resizable()
        .styleButton()
        .overlay(ToolTip("Search"))
}
.buttonStyle(BorderlessButtonStyle())
.applyIf(showsSearch, apply: {
    $0.foregroundColor(Color.orange)
})