mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
ac7664357a
This wasn't possible when the SIL cloner was first written, but subclass existentials can involve generic classes, so you can have an opened archetype type with a superclass constraint involving a type constraint.
22 lines
691 B
Swift
22 lines
691 B
Swift
// RUN: %target-swift-frontend -emit-sil -primary-file %s | %FileCheck %s
|
|
|
|
class C<T> {}
|
|
protocol P {
|
|
func f()
|
|
}
|
|
|
|
// CHECK-LABEL: sil hidden [transparent] @$s27inline_subclass_existential3fooyyAA1P_AA1CCyxGXclF : $@convention(thin) <T> (@guaranteed C<T> & P) -> () {
|
|
// CHECK: open_existential_ref %0 : $C<T> & P to $@opened("{{.*}}") C<T> & P
|
|
// CHECK: return
|
|
@_transparent
|
|
func foo<T>(_ x: C<T> & P) {
|
|
x.f()
|
|
}
|
|
|
|
// CHECK-LABEL: sil hidden @$s27inline_subclass_existential3baryyAA1P_AA1CCySiGXcF : $@convention(thin) (@guaranteed C<Int> & P) -> () {
|
|
// CHECK: open_existential_ref %0 : $C<Int> & P to $@opened("{{.*}}") C<Int> & P
|
|
// CHECK: return
|
|
func bar(_ x: C<Int> & P) {
|
|
foo(x)
|
|
}
|