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40 lines
1.4 KiB
Swift
40 lines
1.4 KiB
Swift
// RUN: %target-swift-emit-silgen %s -enable-objc-interop -enable-upcoming-feature WeakLet | %FileCheck %s
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// REQUIRES: swift_feature_WeakLet
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protocol ClassProtocol: AnyObject {}
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class BaseClass {}
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func makeGenericClosureWithUnknownClass<T>(t: T) where T : ClassProtocol {
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_ = { [unowned t] in _ = t }
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}
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// CHECK-LABEL: sil private [ossa] @$s4main34makeGenericClosureWithUnknownClass1tyx_tAA0G8ProtocolRzlFyycfU_ : $@convention(thin) <T where T : ClassProtocol> (@in_guaranteed @sil_unowned T) -> () {
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func makeGenericClosureWithNativeClass1<T>(t: T) where T : BaseClass {
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_ = { [unowned t] in _ = t }
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}
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// CHECK-LABEL: sil private [ossa] @$s4main34makeGenericClosureWithNativeClass11tyx_tAA9BaseClassCRbzlFyycfU_ : $@convention(thin) <T where T : BaseClass> (@guaranteed @sil_unowned T) -> () {
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func makeGenericClosureWithNativeClass2<T>(t: T) where T : ClassProtocol, T : BaseClass {
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_ = { [unowned t] in _ = t }
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}
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// CHECK-LABEL: sil private [ossa] @$s4main34makeGenericClosureWithNativeClass21tyx_tAA9BaseClassCRbzAA0I8ProtocolRzlFyycfU_ : $@convention(thin) <T where T : BaseClass, T : ClassProtocol> (@guaranteed @sil_unowned T) -> () {
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// https://github.com/swiftlang/swift/issues/79244
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struct Wrapper<T: AnyObject> {
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unowned var t: T
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}
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func f1<T: AnyObject>(t: T) {
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_ = { Wrapper(t: t) }
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}
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func f2<T: AnyObject, U: AnyObject>(u: U, tt: Array<Wrapper<T>>) {
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_ = tt.map { _ in Wrapper(t: u) }
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}
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