Siegfried Pammer 2291586659 Classify C# 14 user-defined compound assignment operators in the type system ...

C# 14 lets a type declare "void operator +=(T)" and friends: void-returning
instance methods under the op_*Assignment metadata names. Only that exact shape
becomes SymbolKind.Operator, and only while the new setting is on, because other
languages use the same names for unrelated methods: F# mangles
"static member (+=)" to a static, value-returning op_AdditionAssignment, and
C++/CLI emits value-returning instance operators. Those, and every method when
the setting is off, stay plain methods with a surfaced [SpecialName].

Assisted-by: Claude:claude-opus-5:Claude Code

2026-08-29 09:37:40 +02:00

..

Implementation

Classify C# 14 user-defined compound assignment operators in the type system

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Accessibility.cs

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ApplyAttributeTypeVisitor.cs

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ArrayType.cs

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AssemblyQualifiedTypeName.cs

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ByReferenceType.cs

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ComHelper.cs

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DecompilerTypeSystem.cs

Classify C# 14 user-defined compound assignment operators in the type system

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ExtensionInfo.cs

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FullTypeName.cs

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FunctionPointerType.cs

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GenericContext.cs

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IAssembly.cs

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IAttribute.cs

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ICodeContext.cs

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ICompilation.cs

Add support for C# 14 first-class span types in the type system.

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IDecompilerTypeSystem.cs

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IEntity.cs

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IEvent.cs

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IField.cs

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IFreezable.cs

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IInterningProvider.cs

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IMember.cs

Remove the now-unused IMemberReference interface

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IMethod.cs

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INamedElement.cs

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INamespace.cs

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InheritanceHelper.cs

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IntersectionType.cs

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IParameter.cs

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IParameterizedMember.cs

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IProperty.cs

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ISupportsInterning.cs

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ISymbol.cs

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IType.cs

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ITypeDefinition.cs

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ITypeDefinitionOrUnknown.cs

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ITypeParameter.cs

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ITypeReference.cs

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IVariable.cs

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KnownTypeReference.cs

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MetadataModule.cs

Model scoped parameter lifetimes

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ModifiedType.cs

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NormalizeTypeVisitor.cs

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Nullability.cs

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NullableType.cs

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ParameterizedType.cs

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ParameterListComparer.cs

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PointerType.cs

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ReferenceResolvingException.cs

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ReflectionHelper.cs

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ReflectionNameParseException.cs

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SimpleTypeResolveContext.cs

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SpecialType.cs

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TaskType.cs

Handle non-Task task-likes (ValueTask, custom AsyncMethodBuilder) in ILReader async return-type unpacking.

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TopLevelTypeName.cs

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TupleType.cs

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TypeKind.cs

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TypeParameterSubstitution.cs

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TypeProvider.cs

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TypeSystemExtensions.cs

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TypeUtils.cs

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TypeVisitor.cs

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UsingScope.cs

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VarArgInstanceMethod.cs

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