protected override FieldSymbol FindFieldSymbolInType(TypeSymbol typeSymbol, FieldDefinitionHandle fieldDef) { Debug.Assert(typeSymbol is PENamedTypeSymbol || typeSymbol is ErrorTypeSymbol); foreach (Symbol member in typeSymbol.GetMembersUnordered()) { PEFieldSymbol field = member as PEFieldSymbol; if ((object)field != null && field.Handle == fieldDef) { return(field); } } return(null); }
internal PEEventSymbol( PEModuleSymbol moduleSymbol, PENamedTypeSymbol containingType, EventDefinitionHandle handle, PEMethodSymbol addMethod, PEMethodSymbol removeMethod, MultiDictionary <string, PEFieldSymbol> privateFieldNameToSymbols) { Debug.Assert((object)moduleSymbol != null); Debug.Assert((object)containingType != null); Debug.Assert(!handle.IsNil); Debug.Assert((object)addMethod != null); Debug.Assert((object)removeMethod != null); _addMethod = addMethod; _removeMethod = removeMethod; _handle = handle; _containingType = containingType; EventAttributes mdFlags = 0; EntityHandle eventType = default(EntityHandle); try { var module = moduleSymbol.Module; module.GetEventDefPropsOrThrow(handle, out _name, out mdFlags, out eventType); } catch (BadImageFormatException mrEx) { if ((object)_name == null) { _name = string.Empty; } _lazyUseSiteDiagnostic = new CSDiagnosticInfo(ErrorCode.ERR_BindToBogus, this); if (eventType.IsNil) { _eventType = TypeSymbolWithAnnotations.Create(new UnsupportedMetadataTypeSymbol(mrEx)); } } TypeSymbol originalEventType = _eventType.TypeSymbol; if (_eventType.IsNull) { var metadataDecoder = new MetadataDecoder(moduleSymbol, containingType); originalEventType = metadataDecoder.GetTypeOfToken(eventType); var typeSymbol = originalEventType; // We start without annotation (they will be decoded below) var type = TypeSymbolWithAnnotations.Create(typeSymbol); // Decode nullable before tuple types to avoid converting between // NamedTypeSymbol and TupleTypeSymbol unnecessarily. type = NullableTypeDecoder.TransformType(type, handle, moduleSymbol); type = TupleTypeDecoder.DecodeTupleTypesIfApplicable(type, handle, moduleSymbol); _eventType = type; } bool callMethodsDirectly = !DoSignaturesMatch(moduleSymbol, originalEventType, _addMethod, _removeMethod); if (callMethodsDirectly) { _flags |= Flags.CallMethodsDirectly; } else { _addMethod.SetAssociatedEvent(this, MethodKind.EventAdd); _removeMethod.SetAssociatedEvent(this, MethodKind.EventRemove); PEFieldSymbol associatedField = GetAssociatedField(privateFieldNameToSymbols); if ((object)associatedField != null) { _associatedFieldOpt = associatedField; associatedField.SetAssociatedEvent(this); } } if ((mdFlags & EventAttributes.SpecialName) != 0) { _flags |= Flags.IsSpecialName; } if ((mdFlags & EventAttributes.RTSpecialName) != 0) { _flags |= Flags.IsRuntimeSpecialName; } }