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149 lines
7.9 KiB
Swift
149 lines
7.9 KiB
Swift
// RUN: %empty-directory(%t)
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// A swift 5 module /without/ concurrency checking
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// RUN: %target-swift-frontend -emit-module -emit-module-path %t/PreconcurrencyUnchecked.swiftmodule -module-name PreconcurrencyUnchecked %S/Inputs/transfernonsendable_preconcurrency_unchecked.swift -disable-availability-checking -swift-version 5
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// A swift 5 module /with/ concurrency checking
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// RUN: %target-swift-frontend -emit-module -emit-module-path %t/PreconcurrencyChecked.swiftmodule -module-name PreconcurrencyChecked %S/Inputs/transfernonsendable_preconcurrency_checked.swift -disable-availability-checking -swift-version 5 -strict-concurrency=complete
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// Test swift 5 with strict concurrency
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// RUN: %target-swift-frontend -swift-version 5 %s -emit-sil -o /dev/null -verify -verify-additional-prefix swift-5- -parse-as-library -I %t -strict-concurrency=complete -disable-availability-checking
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// Test swift 6
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// RUN: %target-swift-frontend -swift-version 6 %s -emit-sil -o /dev/null -verify -verify-additional-prefix swift-6- -parse-as-library -I %t -disable-availability-checking
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// REQUIRES: concurrency
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// REQUIRES: asserts
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// README: This test is meant to test the interaction of transfernonsendable and
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// preconcurrency. Please only keep such tests in this file.
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////////////////////////
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// MARK: Declarations //
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////////////////////////
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@preconcurrency import PreconcurrencyUnchecked
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import PreconcurrencyChecked
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typealias PreCUncheckedNonSendableKlass = PreconcurrencyUnchecked.NonSendableKlass
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typealias PreCUncheckedExplicitlyNonSendableKlass = PreconcurrencyUnchecked.ExplicitlyNonSendableKlass
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typealias PostCUncheckedNonSendableKlass = PreconcurrencyChecked.NonSendableKlass
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actor CustomActorInstance {}
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@globalActor
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struct CustomActor {
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static let shared = CustomActorInstance()
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}
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func transferToNonIsolated<T>(_ t: T) async {}
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@MainActor func transferToMain<T>(_ t: T) async {}
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@CustomActor func transferToCustom<T>(_ t: T) async {}
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func useValue<T>(_ t: T) {}
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func useValueAsync<T>(_ t: T) async {}
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@MainActor func useValueMain<T>(_ t: T) {}
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@MainActor func mainActorFunction() {}
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////////////////////////////////////
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// MARK: Use After Transfer Tests //
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////////////////////////////////////
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// In swift 5, this should be squelched and should emit a warning in swift 6.
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func testPreconcurrencyImplicitlyNonSendable() async {
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let x = PreCUncheckedNonSendableKlass()
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await transferToMain(x)
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useValue(x)
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}
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// In swift 5 and swift 6, this should be a warning.
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func testPreconcurrencyExplicitlyNonSendable() async {
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let x = PreCUncheckedExplicitlyNonSendableKlass()
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await transferToMain(x)
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// expected-swift-5-warning @-1 {{sending 'x' risks causing data races}}
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// expected-swift-5-note @-2 {{sending 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and local nonisolated uses}}
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// expected-swift-6-warning @-3 {{sending 'x' risks causing data races}}
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// expected-swift-6-note @-4 {{sending 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and local nonisolated uses}}
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useValue(x)
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// expected-swift-5-note @-1 {{access can happen concurrently}}
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// expected-swift-6-note @-2 {{access can happen concurrently}}
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}
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// In swift 5 this is a warning and in swift 6 this is an error.
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func testNormal() async {
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let x = PostCUncheckedNonSendableKlass()
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await transferToMain(x)
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// expected-swift-5-warning @-1 {{sending 'x' risks causing data races}}
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// expected-swift-6-error @-2 {{sending 'x' risks causing data races}}
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// expected-swift-5-note @-3 {{sending 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and local nonisolated uses}}
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// expected-swift-6-note @-4 {{sending 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and local nonisolated uses}}
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useValue(x) // expected-swift-5-note {{access can happen concurrently}}
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// expected-swift-6-note @-1 {{access can happen concurrently}}
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}
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func testOnlyErrorOnExactValue() async {
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let x = PreCUncheckedNonSendableKlass()
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let y = (x, x)
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// We would squelch this if we transferred it directly. Also we error even
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// though we use x later.
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await transferToMain(y)
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// expected-swift-5-warning @-1 {{sending 'y' risks causing data races}}
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// expected-swift-5-note @-2 {{sending 'y' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and local nonisolated uses}}
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// expected-swift-6-error @-3 {{sending 'y' risks causing data races}}
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// expected-swift-6-note @-4 {{sending 'y' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and local nonisolated uses}}
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useValue(x)
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// expected-swift-5-note @-1 {{access can happen concurrently}}
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// expected-swift-6-note @-2 {{access can happen concurrently}}
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}
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func testNoErrorIfUseInSameRegionLater() async {
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let x = PreCUncheckedNonSendableKlass()
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let y = (x, x)
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// We squelch since we are sending x.
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await transferToMain(x)
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useValue(y)
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}
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////////////////////////////////
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// MARK: Never Transfer Tests //
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////////////////////////////////
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func testNeverTransfer(_ x: PreCUncheckedNonSendableKlass) async {
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await transferToMain(x)
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}
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func testNeverTransferExplicit(_ x: PreCUncheckedExplicitlyNonSendableKlass) async {
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await transferToMain(x)
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// expected-swift-5-warning @-1 {{sending 'x' risks causing data races}}
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// expected-swift-5-note @-2 {{sending task-isolated 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and task-isolated uses}}
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// expected-swift-6-warning @-3 {{sending 'x' risks causing data races}}
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// expected-swift-6-note @-4 {{sending task-isolated 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and task-isolated uses}}
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}
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func testNeverTransferNormal(_ x: PostCUncheckedNonSendableKlass) async {
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await transferToMain(x)
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// expected-swift-5-warning @-1 {{sending 'x' risks causing data races}}
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// expected-swift-5-note @-2 {{sending task-isolated 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and task-isolated uses}}
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// expected-swift-6-error @-3 {{sending 'x' risks causing data races}}
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// expected-swift-6-note @-4 {{sending task-isolated 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and task-isolated uses}}
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}
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// Inexact match => normal behavior.
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func testNeverTransferInexactMatch(_ x: (PreCUncheckedNonSendableKlass, PreCUncheckedNonSendableKlass)) async {
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await transferToMain(x)
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// expected-swift-5-warning @-1 {{sending 'x' risks causing data races}}
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// expected-swift-5-note @-2 {{sending task-isolated 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and task-isolated uses}}
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// expected-swift-6-error @-3 {{sending 'x' risks causing data races}}
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// expected-swift-6-note @-4 {{sending task-isolated 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and task-isolated uses}}
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}
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// Inexact match => normal behavior.
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func testNeverTransferInexactMatchExplicit(_ x: (PreCUncheckedExplicitlyNonSendableKlass, PreCUncheckedExplicitlyNonSendableKlass)) async {
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await transferToMain(x)
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// expected-swift-5-warning @-1 {{sending 'x' risks causing data races}}
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// expected-swift-5-note @-2 {{sending task-isolated 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and task-isolated uses}}
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// expected-swift-6-error @-3 {{sending 'x' risks causing data races}}
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// expected-swift-6-note @-4 {{sending task-isolated 'x' to main actor-isolated global function 'transferToMain' risks causing data races between main actor-isolated and task-isolated uses}}
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}
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