diff options
author | Jackson Schuster <36744439+jtschuster@users.noreply.github.com> | 2022-11-02 18:37:46 +0300 |
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committer | GitHub <noreply@github.com> | 2022-11-02 18:37:46 +0300 |
commit | 391ac60bbfb2c618b82f08af728d2d4d259d584e (patch) | |
tree | 94147f3fec3c7d8a0ef09fb0a07cc137ce632d3e | |
parent | e502e7255030dde029e984e397924338485d1079 (diff) |
Don't mark override of abstract base if the override's declaring type is not marked (#3098)
* Don't mark an override every time the base is abstract, only if the declaring type is also marked
Adds a condition to ShouldMarkOverrideForBase to exit early if the declaring type of the method is not marked.
3 files changed, 105 insertions, 0 deletions
diff --git a/src/linker/Linker.Steps/MarkStep.cs b/src/linker/Linker.Steps/MarkStep.cs index 646e2e6bd..67a3c42b3 100644 --- a/src/linker/Linker.Steps/MarkStep.cs +++ b/src/linker/Linker.Steps/MarkStep.cs @@ -715,6 +715,8 @@ namespace Mono.Linker.Steps // TODO: Move interface method marking logic here https://github.com/dotnet/linker/issues/3090 bool ShouldMarkOverrideForBase (OverrideInformation overrideInformation) { + if (!Annotations.IsMarked (overrideInformation.Override.DeclaringType)) + return false; if (overrideInformation.IsOverrideOfInterfaceMember) { _interfaceOverrides.Add ((overrideInformation, ScopeStack.CurrentScope)); return false; diff --git a/test/ILLink.RoslynAnalyzer.Tests/generated/ILLink.RoslynAnalyzer.Tests.Generator/ILLink.RoslynAnalyzer.Tests.TestCaseGenerator/Inheritance.VirtualMethodsTests.g.cs b/test/ILLink.RoslynAnalyzer.Tests/generated/ILLink.RoslynAnalyzer.Tests.Generator/ILLink.RoslynAnalyzer.Tests.TestCaseGenerator/Inheritance.VirtualMethodsTests.g.cs index a7cadcdb3..5ddfcf4f3 100644 --- a/test/ILLink.RoslynAnalyzer.Tests/generated/ILLink.RoslynAnalyzer.Tests.Generator/ILLink.RoslynAnalyzer.Tests.TestCaseGenerator/Inheritance.VirtualMethodsTests.g.cs +++ b/test/ILLink.RoslynAnalyzer.Tests/generated/ILLink.RoslynAnalyzer.Tests.Generator/ILLink.RoslynAnalyzer.Tests.TestCaseGenerator/Inheritance.VirtualMethodsTests.g.cs @@ -28,6 +28,12 @@ namespace ILLink.RoslynAnalyzer.Tests.Inheritance } [Fact] + public Task OverrideInUnmarkedClassIsRemoved () + { + return RunTest (allowMissingWarnings: true); + } + + [Fact] public Task UnusedTypeWithOverrideOfVirtualMethodIsRemoved () { return RunTest (allowMissingWarnings: true); diff --git a/test/Mono.Linker.Tests.Cases/Inheritance.VirtualMethods/OverrideOfAbstractInUnmarkedClassIsRemoved.cs b/test/Mono.Linker.Tests.Cases/Inheritance.VirtualMethods/OverrideOfAbstractInUnmarkedClassIsRemoved.cs new file mode 100644 index 000000000..366fd6a3f --- /dev/null +++ b/test/Mono.Linker.Tests.Cases/Inheritance.VirtualMethods/OverrideOfAbstractInUnmarkedClassIsRemoved.cs @@ -0,0 +1,97 @@ +// 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.Linq; +using System.Text; +using System.Threading.Tasks; +using Mono.Linker.Tests.Cases.Expectations.Assertions; +using Mono.Linker.Tests.Cases.Expectations.Metadata; + +namespace Mono.Linker.Tests.Cases.Inheritance.VirtualMethods +{ + public class OverrideOfAbstractInUnmarkedClassIsRemoved + { + [Kept] + public static void Main () + { + MarkedBase x = new MarkedDerived (); + x.Method (); + + UsedSecondLevelTypeWithAbstractBase y = new (); + y.Method (); + + UsedSecondLevelType z = new (); + z.Method (); + } + + [Kept] + [KeptMember (".ctor()")] + abstract class MarkedBase + { + [Kept] + public abstract int Method (); + } + + [Kept] + [KeptMember (".ctor()")] + [KeptBaseType (typeof (MarkedBase))] + class MarkedDerived : MarkedBase + { + [Kept] + public override int Method () => 1; + } + + class UnmarkedDerived : MarkedBase + { + public override int Method () => 1; + } + + [Kept] + [KeptMember (".ctor()")] + [KeptBaseType (typeof (MarkedBase))] + class UnusedIntermediateType : MarkedBase + { + [Kept] + public override int Method () => 1; + } + + [Kept] + [KeptMember (".ctor()")] + [KeptBaseType (typeof (UnusedIntermediateType))] + class UsedSecondLevelType : UnusedIntermediateType + { + [Kept] + public override int Method () => 1; + } + + [Kept] + [KeptMember (".ctor()")] + [KeptBaseType (typeof (MarkedBase))] + abstract class UnusedIntermediateTypeWithAbstractOverride : MarkedBase + { + [Kept] + public abstract override int Method (); + } + + [Kept] + [KeptMember (".ctor()")] + [KeptBaseType (typeof (UnusedIntermediateTypeWithAbstractOverride))] + class UsedSecondLevelTypeWithAbstractBase : UnusedIntermediateTypeWithAbstractOverride + { + [Kept] + public override int Method () => 1; + } + + class UnusedSecondLevelTypeWithAbstractBase : UnusedIntermediateTypeWithAbstractOverride + { + public override int Method () => 1; + } + + class UnusedSecondLevelType : UnusedIntermediateType + { + public override int Method () => 1; + } + } +} |