Don't warn for RUC from DebuggerDisplayAttribute

Fixes dotnet#2122
sbomer · Jun 30, 2021 · cd7d310 · cd7d310
1 parent f549b4e
commit cd7d310
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/linker/Linker.Steps/MarkStep.cs b/src/linker/Linker.Steps/MarkStep.cs
@@ -2747,6 +2747,10 @@ void ProcessRequiresUnreferencedCode (MethodDefinition method, DependencyKind de
 
 			case DependencyKind.Custom:
 			case DependencyKind.Unspecified:
+
+			// Don't warn for methods kept due to non-understood DebuggerDisplayAttribute
+			// until https://github.com/mono/linker/issues/1873 is fixed.
+			case DependencyKind.KeptForSpecialAttribute:
 				return;
 
 			default:

diff --git a/test/Mono.Linker.Tests.Cases/RequiresCapability/RequiresUnreferencedCodeCapability.cs b/test/Mono.Linker.Tests.Cases/RequiresCapability/RequiresUnreferencedCodeCapability.cs
@@ -689,7 +689,8 @@ public static void Test ()
 
 		class AccessThroughSpecialAttribute
 		{
-			[ExpectedWarning ("IL2026", "--DebuggerProxyType.Method--")]
+			// https://github.com/mono/linker/issues/1873
+			// [ExpectedWarning ("IL2026", "--DebuggerProxyType.Method--")]
 			[DebuggerDisplay ("Some{*}value")]
 			class TypeWithDebuggerDisplay
 			{