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// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Text;
using Mono.Linker.Tests.Cases.Expectations.Assertions;
using Mono.Linker.Tests.Cases.Expectations.Metadata;
namespace Mono.Linker.Tests.Cases.DataFlow
{
[SetupCompileArgument ("/langversion:7.3")]
[Kept]
[ExpectedNoWarnings]
class ByRefDataflow
{
public static void Main ()
{
{
Type t = typeof (ClassPassedToMethodTakingTypeByRef);
MethodWithRefParameter (ref t);
}
{
Type t1 = typeof (ClassMaybePassedToMethodTakingTypeByRef);
Type t2 = typeof (OtherClassMaybePassedToMethodTakingTypeByRef);
ref Type t = ref t1;
if (string.Empty.Length == 0)
t = ref t2;
MethodWithRefParameter (ref t);
}
PassRefToField ();
PassRefToParameter (null);
}
[Kept]
[KeptAttributeAttribute (typeof (DynamicallyAccessedMembersAttribute))]
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
static Type s_typeWithPublicParameterlessConstructor;
[Kept]
// Trimmer and analyzer use different formats for ref parameters: https://github.com/dotnet/linker/issues/2406
[ExpectedWarning ("IL2077", nameof (ByRefDataflow) + "." + nameof (MethodWithRefParameter) + "(Type&)", ProducedBy = ProducedBy.Trimmer)]
[ExpectedWarning ("IL2077", nameof (ByRefDataflow) + "." + nameof (MethodWithRefParameter) + "(ref Type)", ProducedBy = ProducedBy.Analyzer)]
public static void PassRefToField ()
{
MethodWithRefParameter (ref s_typeWithPublicParameterlessConstructor);
}
[Kept]
// Trimmer and analyzer use different formats for ref parameters: https://github.com/dotnet/linker/issues/2406
[ExpectedWarning ("IL2067", nameof (ByRefDataflow) + "." + nameof (MethodWithRefParameter) + "(Type&)", ProducedBy = ProducedBy.Trimmer)]
[ExpectedWarning ("IL2067", nameof (ByRefDataflow) + "." + nameof (MethodWithRefParameter) + "(ref Type)", ProducedBy = ProducedBy.Analyzer)]
public static void PassRefToParameter (Type parameter)
{
MethodWithRefParameter (ref parameter);
}
[Kept]
public static void MethodWithRefParameter (
[KeptAttributeAttribute(typeof(DynamicallyAccessedMembersAttribute))]
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicMethods)]
ref Type type)
{
type = typeof (ClassReturnedAsRefFromMethodTakingTypeByRef);
}
[Kept]
class ClassPassedToMethodTakingTypeByRef
{
[Kept]
public static void KeptMethod () { }
internal static void RemovedMethod () { }
}
[Kept]
class ClassReturnedAsRefFromMethodTakingTypeByRef
{
[Kept]
public static void KeptMethod () { }
internal static void RemovedMethod () { }
}
[Kept]
class ClassMaybePassedToMethodTakingTypeByRef
{
[Kept]
public static void KeptMethod () { }
internal static void RemovedMethod () { }
}
[Kept]
class OtherClassMaybePassedToMethodTakingTypeByRef
{
[Kept]
public static void KeptMethod () { }
internal static void RemovedMethod () { }
}
}
}
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