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// RUN: %target-typecheck-verify-swift
protocol Initable {
init()
}
struct ConcreteType {
let c: [Int]
// Generic index type
subscript<C : Collection>(indices: C) -> [Int]
where C.Iterator.Element == Int {
return indices.map { c[$0] }
}
// Generic element type
subscript<I : Initable>(factory: I.Type) -> I {
return factory.init()
}
}
struct GenericType<T : Collection> {
let c: T
// Generic index type
subscript<C : Collection>(indices: C) -> [T.Iterator.Element]
where C.Iterator.Element == T.Index {
return indices.map { c[$0] }
}
// Generic element type
subscript<I : Initable>(factory: I.Type) -> I {
return factory.init()
}
}
struct StaticConcreteType {
static let c: [Int] = []
// Generic index type
static subscript<C : Collection>(indices: C) -> [Int]
where C.Iterator.Element == Int {
return indices.map { c[$0] }
}
// Generic element type
static subscript<I : Initable>(factory: I.Type) -> I {
return factory.init()
}
}
struct StaticGenericType<T : Collection> {
static var c: T { fatalError() }
// Generic index type
static subscript<C : Collection>(indices: C) -> [T.Iterator.Element]
where C.Iterator.Element == T.Index {
return indices.map { c[$0] }
}
// Generic element type
static subscript<I : Initable>(factory: I.Type) -> I {
return factory.init()
}
}
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