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TEST=language/static_weak_reference_test TEST=language/static_weak_reference_error_test Bug: b/269223463 Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-nnbd-linux-release-x64-try Change-Id: I760476a7c81751f6c302f21251b525cb5c916c02 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284489 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com> Reviewed-by: Stephen Adams <sra@google.com>
125 lines
3.4 KiB
Dart
125 lines
3.4 KiB
Dart
// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Test errors for incorrect usage of 'weak-tearoff-reference' pragma.
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@pragma('weak-tearoff-reference')
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Function? validWeakRef(Function? x) => x;
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@pragma('weak-tearoff-reference')
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Function? weakRef1({Function? x}) => x;
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// ^
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// [cfe] Weak reference should take one required positional argument.
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@pragma('weak-tearoff-reference')
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Function? weakRef2({required Function? x}) => x;
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// ^
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// [cfe] Weak reference should take one required positional argument.
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@pragma('weak-tearoff-reference')
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Function? weakRef3([Function? x]) => x;
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// ^
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// [cfe] Weak reference should take one required positional argument.
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@pragma('weak-tearoff-reference')
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Function? weakRef4(Function? x, int y) => x;
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// ^
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// [cfe] Weak reference should take one required positional argument.
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@pragma('weak-tearoff-reference')
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Function? weakRef5(Function? x, {int? y}) => x;
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// ^
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// [cfe] Weak reference should take one required positional argument.
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@pragma('weak-tearoff-reference')
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Function weakRef6(Function x) => x;
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// ^
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// [cfe] Return type of a weak reference should be nullable.
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@pragma('weak-tearoff-reference')
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Function weakRef7(Function x) => x;
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// ^
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// [cfe] Return type of a weak reference should be nullable.
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@pragma('weak-tearoff-reference')
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dynamic validWeakRef8(dynamic x) => x;
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@pragma('weak-tearoff-reference')
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Function? weakRef9(void Function() x) => x;
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// ^
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// [cfe] Return and argument types of a weak reference should match.
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@pragma('weak-tearoff-reference')
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Function? weakRef10(Function x) => x;
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// ^
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// [cfe] Return and argument types of a weak reference should match.
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class A {
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@pragma('weak-tearoff-reference')
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external static T Function()? validWeakReference11<T>(T Function()? x);
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@pragma('weak-tearoff-reference')
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external T Function()? weakReference12<T>(T Function()? x);
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// ^
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// [cfe] Weak reference pragma can be used on a static method only.
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}
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class B {
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static int validTarget() => 42;
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B();
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B.bar();
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factory B.baz() => B();
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int instanceMethod() => 42;
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static int arg1(int x) => 42;
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static int arg2([int? x]) => 42;
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static int arg3({int? x}) => 42;
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static int arg4<T>() => 42;
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}
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void main() {
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validWeakRef(B.validTarget); // OK
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validWeakRef(B.new);
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//^
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// [cfe] The target of weak reference should be a tearoff of a static method.
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validWeakRef(B.bar);
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//^
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// [cfe] The target of weak reference should be a tearoff of a static method.
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validWeakRef(B.baz);
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//^
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// [cfe] The target of weak reference should be a tearoff of a static method.
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validWeakRef(B().instanceMethod);
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//^
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// [cfe] The target of weak reference should be a tearoff of a static method.
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final x = B.validTarget;
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validWeakRef(x);
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//^
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// [cfe] The target of weak reference should be a tearoff of a static method.
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const y = B.validTarget;
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validWeakRef(y); // OK
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validWeakRef(B.arg1);
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//^
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// [cfe] The target of weak reference should not take parameters.
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validWeakRef(B.arg2);
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//^
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// [cfe] The target of weak reference should not take parameters.
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validWeakRef(B.arg3);
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//^
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// [cfe] The target of weak reference should not take parameters.
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validWeakRef(B.arg4);
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//^
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// [cfe] The target of weak reference should not take parameters.
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}
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