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// RUN: %target-typecheck-verify-swift -swift-version 5
// RUN: %target-typecheck-verify-swift -swift-version 5 -strict-concurrency=complete -verify-additional-prefix complete-
class NonSendable {} // expected-complete-note 3{{class 'NonSendable' does not conform to the 'Sendable' protocol}}
func callee(_: @Sendable () -> NonSendable) {}
var testLocalCaptures: Int {
let ns = NonSendable()
@Sendable func localFunc() -> NonSendable {
return ns // expected-complete-warning {{capture of 'ns' with non-sendable type 'NonSendable' in a '@Sendable' local function}}
}
callee { return ns } // expected-complete-warning {{capture of 'ns' with non-sendable type 'NonSendable' in a '@Sendable' closure}}
return 3
}
struct Bad {
var c: Int = {
let ns = NonSendable()
callee { return ns } // expected-complete-warning {{capture of 'ns' with non-sendable type 'NonSendable' in a '@Sendable' closure}}
return 3
}()
}
do {
class Test { // expected-complete-note 2 {{class 'Test' does not conform to the 'Sendable' protocol}}
func update() {}
}
func sendable(_: @Sendable () -> Void) {}
@preconcurrency
func sendable_preconcurrency(_: @Sendable () -> Void) {}
func withMutable(_: (inout Test) -> Void) {}
withMutable { test in
sendable {
test.update()
// expected-complete-warning@-1 {{capture of 'test' with non-sendable type 'Test' in a '@Sendable' closure}}
// expected-warning@-2 {{mutable capture of 'inout' parameter 'test' is not allowed in concurrently-executing code}}
}
sendable_preconcurrency {
test.update()
// expected-complete-warning@-1 {{capture of 'test' with non-sendable type 'Test' in a '@Sendable' closure}}
// expected-complete-warning@-2 {{mutable capture of 'inout' parameter 'test' is not allowed in concurrently-executing code}}
}
}
}
class NotSendable {} // expected-complete-note {{class 'NotSendable' does not conform to the 'Sendable' protocol}}
@available(*, unavailable)
extension NotSendable : @unchecked Sendable {}
@preconcurrency func withSendableClosure(_: @Sendable () -> Void) {}
func testPreconcurrencyDowngrade(ns: NotSendable) {
var x = 0
withSendableClosure {
_ = ns
// expected-complete-warning@-1 {{capture of 'ns' with non-sendable type 'NotSendable' in a '@Sendable' closure}}
x += 1
// expected-complete-warning@-1 {{mutation of captured var 'x' in concurrently-executing code}}
}
}
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