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// RUN: %target-swift-frontend -emit-sil %s -module-name test -swift-version 5 -sil-verify-all | %FileCheck %s
// REQUIRES: concurrency
@available(SwiftStdlib 5.1, *)
func f(isolatedTo actor: isolated (any Actor)?) async -> Int { 0 }
@available(SwiftStdlib 5.1, *)
actor A {
let number: Int
// CHECK-LABEL: sil hidden{{.*}}@$s4test1ACACyYacfc : $@convention(method) @async (@sil_isolated @owned A) -> @owned A
init() async {
// First use of #isolation, which is replaced by 'nil'.
// CHECK: [[ISOLATION_1:%.*]] = enum $Optional<any Actor>, #Optional.none!enumelt
// CHECK: [[F_1:%.*]] = function_ref @$s4test1f10isolatedToSiScA_pSgYi_tYaF
// CHECK-NEXT: [[F_RESULT:%.*]] = apply [[F_1]]([[ISOLATION_1]])
// Assignment to "number" of the result.
// CHECK: [[NUMBER:%.*]] = ref_element_addr {{%.*}} : $A, #A.number
// CHECK: store [[F_RESULT]] to [[NUMBER]]
self.number = await f(isolatedTo: #isolation)
// Second use of #isolation, which uses 'self' injected into (any Actor)?.
// CHECK: [[ACTOR_COPY:%.*]] = end_init_let_ref %0 : $A
// CHECK: strong_retain [[ACTOR_COPY]] : $A
// CHECK: [[ACTOR_EXISTENTIAL:%.*]] = init_existential_ref [[ACTOR_COPY]] : $A : $A, $any Actor
// CHECK: [[ISOLATION_2:%.*]] = enum $Optional<any Actor>, #Optional.some!enumelt, [[ACTOR_EXISTENTIAL]]
// CHECK: [[F_2:%.*]] = function_ref @$s4test1f10isolatedToSiScA_pSgYi_tYaF
// CHECK-NEXT: apply [[F_2]]([[ISOLATION_2]])
_ = await f(isolatedTo: #isolation)
}
}
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