A collection of handy result builders.
Foundation not required for most builder types. Requires Swift 5.4+
Returns true if all elements are nil.
Elements are not required to be homogenous.
struct Element {
var title: String?
var description: String?
var child: Self?
@AllNil var isEmpty: Bool {
title
description
child
}
}Total of true boolean values
struct FooBar {
var foo: Int?
var bar: Bool?
@Count var nonOptionalCount: Int {
foo != nil
bar != nil
}
}Avoid some punctuation while building Set properties.
struct FooBar {
var foo: Int
var bar: Int
@SetResult var fooAndBar: Set<Int> {
foo
bar
}
}Returns a single element. Useful to avoid typing a few return keywords.
extension Bool {
@SingleResult var enEspañol: String {
switch self {
case true: "Sí"
case false: "No""
}
}
}Convienence formatter for specifying UUID properties. (Requires Foundation)
protocol UUIDIdentifiable: Identifiable where ID == UUID {
@UUIDResult var id: UUID { get }
}
struct Element: UUIDIdentifiable {
var id: UUID {
(194, 210, 39, 207, 170, 13, 68, 151, 190, 189, 41, 237, 240, 95, 174, 248)
}
}Convienence formatter to specify URLs by strings for urls you know to be valid. URL strings are unsafely unwrapped. (Requires Foundation)
protocol Website {
@URLResult var url: URL
}
struct Wikipedia: Website {
var url: URL {
"https://wikipedia.org"
}
}