Confidently cover all static members. Like CaseIterable, this macro creates an array of all the static members of a type. This is useful when a type has a few examples as static members.
Here, we have a Chili type so that we can discuss the heat level and names of various chilis. So far, we have two: jalapeño and habenero. For testing or for displaying in the UI, we want to confidently list both the jalapeño & the habenero. With @StaticMemberIterable, we can finally do si.
@StaticMemberIterable
struct Chili {
let name: String
let heatLevel: Int
static let jalapeño = Chili(name: "jalapeño", heatLevel: 2)
static let habenero = Chili(name: "habenero", heatLevel: 5)
}
expands to
struct Chili {
let name: String
let heatLevel: Int
static let jalapeño = Chili(name: "jalapeño", heatLevel: 2)
static let habenero = Chili(name: "habenero", heatLevel: 5)
static let allStaticMembers = [jalapeño, habenero]
}
In Package.swift, add the package to your dependencies.
.package(url: "https://github.com/FullQueueDeveloper/StaticMemberIterable.git", from: "1.0.0"),
And add "StaticMemberIterable" to the list of your target's dependencies.
When prompted by Xcode, trust the macro.
Introduced at WWDC '23, requiring Swift 5.9