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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Diagnostics.CodeAnalysis;
using Mono.Linker.Tests.Cases.Expectations.Assertions;
using Mono.Linker.Tests.Cases.Expectations.Helpers;
using Mono.Linker.Tests.Cases.Expectations.Metadata;
namespace Mono.Linker.Tests.Cases.DataFlow
{
[SkipKeptItemsValidation]
[ExpectedNoWarnings]
public class MethodByRefReturnDataFlow
{
public static void Main ()
{
ReturnAnnotatedTypeReferenceAsUnannotated ();
AssignToAnnotatedTypeReference ();
}
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)]
static Type _annotatedField;
// This should warn, as assiging to the return ref Type will assign value to the annotated field
// but the annotation is not propagated
// https://github.com/dotnet/linker/issues/2158
// [ExpectedWarning("IL????")]
static ref Type ReturnAnnotatedTypeReferenceAsUnannotated () { return ref _annotatedField; }
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)]
static ref Type ReturnAnnotatedTypeReferenceAsAnnotated () { return ref _annotatedField; }
// https://github.com/dotnet/linker/issues/2158
// [ExpectedWarning("IL2026", "Message for --TestType.Requires--")]
static void AssignToAnnotatedTypeReference ()
{
ref Type typeShouldHaveAllMethods = ref ReturnAnnotatedTypeReferenceAsAnnotated ();
typeShouldHaveAllMethods = typeof (TestTypeWithRequires); // This should apply the annotation -> cause IL2026 due to RUC method
_annotatedField.GetMethods (); // Doesn't warn, but now contains typeof(TestType) - no warning here is correct
}
public class TestTypeWithRequires
{
[RequiresUnreferencedCode ("Message for --TestType.Requires--")]
public static void Requires () { }
}
}
}
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