private static (DeserializableMember?Member, ImmutableArray <Diagnostic> Diagnostics) MakeMember( Location?location, DeserializerTypes types, string name, Setter setter, Parser?parser, Reset?reset, bool isRequired, int?order, ImmutableArray <Diagnostic> diags ) { if (diags.IsEmpty) { if (parser == null && !Parser.TryGetDefault(types, setter.ValueType, out parser)) { var diag = Diagnostics.NoBuiltInParser(location, setter.ValueType); diags = diags.Add(diag); return(null, diags); } parser = Utils.NonNull(parser); return(new DeserializableMember(name, setter, parser, reset, isRequired, order), ImmutableArray <Diagnostic> .Empty); } return(null, diags); }
internal static (DeserializableMember?Member, ImmutableArray <Diagnostic> Diagnostics) ForField( Compilation compilation, AttributedMembers attrMembers, DeserializerTypes types, INamedTypeSymbol deserializingType, IFieldSymbol field, ImmutableArray <AttributeSyntax> attrs ) { var diags = ImmutableArray <Diagnostic> .Empty; var fieldLoc = field.Locations.FirstOrDefault(); var attrName = Utils.GetNameFromAttributes(attrMembers, fieldLoc, attrs, ref diags); var name = attrName ?? field.Name; var setter = new Setter(field); int?order = Utils.GetOrderFromAttributes(attrMembers, fieldLoc, types.Framework, types.OurTypes.DeserializerMemberAttribute, attrs, ref diags); var isRequired = false; var attrIsRequiredValue = GetMemberRequiredFromAttributes(attrMembers, fieldLoc, attrs, ref diags); isRequired = attrIsRequiredValue ?? isRequired; var reset = GetReset(compilation, attrMembers, types, deserializingType, fieldLoc, attrs, ref diags); var parser = GetParser(compilation, attrMembers, types, setter.ValueType, fieldLoc, attrs, ref diags); return(MakeMember(fieldLoc, types, name, setter, parser, reset, isRequired, order, diags)); }
internal static (DeserializableMember?Member, ImmutableArray <Diagnostic> Diagnostics) ForConstructorParameter( Compilation compilation, AttributedMembers attrMembers, DeserializerTypes types, INamedTypeSymbol deserializingType, IParameterSymbol parameter, ImmutableArray <AttributeSyntax> attrs ) { var diags = ImmutableArray <Diagnostic> .Empty; var parameterLoc = parameter.Locations.FirstOrDefault(); var attrName = Utils.GetNameFromAttributes(attrMembers, parameterLoc, attrs, ref diags); var name = attrName ?? parameter.Name; var setter = new Setter(parameter); int?order = Utils.GetOrderFromAttributes(attrMembers, parameterLoc, types.Framework, types.OurTypes.DeserializerMemberAttribute, attrs, ref diags); // note that this defaults to TRUE var isRequired = true; var attrIsRequiredValue = GetMemberRequiredFromAttributes(attrMembers, parameterLoc, attrs, ref diags); isRequired = attrIsRequiredValue ?? isRequired; if (!isRequired) { var diag = Diagnostics.ParametersMustBeRequired(parameterLoc, deserializingType, parameter); diags = diags.Add(diag); return(null, diags); } var reset = GetReset(compilation, attrMembers, types, deserializingType, parameterLoc, attrs, ref diags); if (reset != null && !reset.IsStatic) { var diag = Diagnostics.BadReset_MustBeStaticForParameters(parameterLoc, deserializingType, parameter, reset.Method); diags = diags.Add(diag); return(null, diags); } var parser = GetParser(compilation, attrMembers, types, setter.ValueType, parameterLoc, attrs, ref diags); return(MakeMember(parameterLoc, types, name, setter, parser, reset, isRequired, order, diags)); }
internal static (DeserializableMember?Member, ImmutableArray <Diagnostic> Diagnostics) ForProperty( Compilation compilation, AttributedMembers attrMembers, DeserializerTypes types, INamedTypeSymbol deserializingType, IPropertySymbol prop, ImmutableArray <AttributeSyntax> attrs ) { var diags = ImmutableArray <Diagnostic> .Empty; var propLoc = prop.Locations.FirstOrDefault(); if (prop.SetMethod == null) { var diag = Diagnostics.NoSetterOnDeserializableProperty(propLoc); diags = diags.Add(diag); } if (prop.Parameters.Any()) { var diag = Diagnostics.DeserializablePropertyCannotHaveParameters(propLoc); diags = diags.Add(diag); } var attrName = Utils.GetNameFromAttributes(attrMembers, propLoc, attrs, ref diags); var name = attrName ?? prop.Name; var setter = new Setter(prop); int?order = Utils.GetOrderFromAttributes(attrMembers, propLoc, types.Framework, types.OurTypes.DeserializerMemberAttribute, attrs, ref diags); var isRequired = false; var attrIsRequiredValue = GetMemberRequiredFromAttributes(attrMembers, propLoc, attrs, ref diags); isRequired = attrIsRequiredValue ?? isRequired; var reset = GetReset(compilation, attrMembers, types, deserializingType, propLoc, attrs, ref diags); var parser = GetParser(compilation, attrMembers, types, setter.ValueType, propLoc, attrs, ref diags); // only do this for properties reset ??= InferDefaultReset(attrMembers, types, deserializingType, prop.Name, attrs, propLoc, ref diags); return(MakeMember(propLoc, types, name, setter, parser, reset, isRequired, order, diags)); }
internal static (DeserializableMember?Member, ImmutableArray <Diagnostic> Diagnostics) ForMethod( Compilation compilation, AttributedMembers attrMembers, DeserializerTypes types, INamedTypeSymbol deserializingType, IMethodSymbol mtd, ImmutableArray <AttributeSyntax> attrs ) { var diags = ImmutableArray <Diagnostic> .Empty; var mtdLoc = mtd.Locations.FirstOrDefault(); var attrName = Utils.GetNameFromAttributes(attrMembers, mtdLoc, attrs, ref diags); if (attrName == null) { var diag = Diagnostics.DeserializableMemberMustHaveNameSetForMethod(mtdLoc, mtd); diags = diags.Add(diag); attrName = "--UNKNOWN--"; } var setter = GetSetterForMethod(compilation, types, deserializingType, mtd, mtdLoc, ref diags); int?order = Utils.GetOrderFromAttributes(attrMembers, mtdLoc, types.Framework, types.OurTypes.DeserializerMemberAttribute, attrs, ref diags); var isRequired = false; var attrIsRequiredValue = GetMemberRequiredFromAttributes(attrMembers, mtdLoc, attrs, ref diags); isRequired = attrIsRequiredValue ?? isRequired; var reset = GetReset(compilation, attrMembers, types, deserializingType, mtdLoc, attrs, ref diags); // after this point, we need to know what we're working with if (setter == null) { return(null, diags); } var parser = GetParser(compilation, attrMembers, types, setter.ValueType, mtdLoc, attrs, ref diags); return(MakeMember(mtdLoc, types, attrName, setter, parser, reset, isRequired, order, diags)); }
internal static bool TryGetDefault(DeserializerTypes types, ITypeSymbol forType, out Parser?parser) { if (forType.TypeKind == TypeKind.Enum) { return(TryCreateDefaultEnumParser(types.Framework, forType, out parser)); } if (forType.TypeKind == TypeKind.Struct && forType is INamedTypeSymbol maybeNullableEnum && maybeNullableEnum.Arity == 1) { var typeDecl = maybeNullableEnum.ConstructedFrom; if (typeDecl.Equals(types.BuiltIn.NullableOfT, SymbolEqualityComparer.Default)) { var arg = maybeNullableEnum.TypeArguments.Single(); if (arg.TypeKind == TypeKind.Enum) { return(TryCreateNullableEnumParser(types.Framework, arg, out parser)); } } } var key = forType.ToFullyQualifiedName(); return(DefaultLookup.TryGetValue(key, out parser)); }
private static Parser?GetParser( Compilation compilation, AttributedMembers attrMembers, DeserializerTypes types, ITypeSymbol toParseType, Location?location, ImmutableArray <AttributeSyntax> attrs, ref ImmutableArray <Diagnostic> diags ) { var parser = Utils.GetMethodFromAttribute( attrMembers, "ParserType", Diagnostics.ParserTypeSpecifiedMultipleTimes, "ParserMethodName", Diagnostics.ParserMethodNameSpecifiedMultipleTimes, Diagnostics.ParserBothMustBeSet, location, attrs, ref diags ); if (parser == null) { return(null); } var(type, name) = parser.Value; var parserMtd = Utils.GetMethod(type, name, location, ref diags); if (parserMtd == null) { return(null); } var methodReturnType = parserMtd.ReturnType; if (methodReturnType.SpecialType != SpecialType.System_Boolean) { var diag = Diagnostics.MethodMustReturnBool(location, parserMtd); diags = diags.Add(diag); return(null); } if (!parserMtd.IsStatic) { var diag = Diagnostics.MethodNotStatic(location, parserMtd); diags = diags.Add(diag); return(null); } var accessible = parserMtd.IsAccessible(attrMembers); if (!accessible) { var diag = Diagnostics.MethodNotPublicOrInternal(location, parserMtd); diags = diags.Add(diag); return(null); } var ps = parserMtd.Parameters; if (ps.Length != 3) { var diag = Diagnostics.BadParserParameters(location, parserMtd); diags = diags.Add(diag); return(null); } // Parameters // * ReadOnlySpan(char) // * in ReadContext, // * out assignable to outputType var p0 = ps[0]; if (!p0.IsNormalParameterOfType(compilation, types.Framework.ReadOnlySpanOfChar)) { var diag = Diagnostics.BadParserParameters(location, parserMtd); diags = diags.Add(diag); return(null); } var p1 = ps[1]; if (!p1.IsInReadContext(types.OurTypes)) { var diag = Diagnostics.BadParserParameters(location, parserMtd); diags = diags.Add(diag); return(null); } var p2 = ps[2]; if (p2.RefKind != RefKind.Out) { var diag = Diagnostics.BadParserParameters(location, parserMtd); diags = diags.Add(diag); return(null); } var conversion = compilation.ClassifyConversion(p2.Type, toParseType); var canConvert = conversion.IsImplicit || conversion.IsIdentity; if (!canConvert) { var diag = Diagnostics.BadParserParameters(location, parserMtd); diags = diags.Add(diag); return(null); } return(new Parser(parserMtd, p2.Type)); }
internal static Reset?InferDefaultReset( AttributedMembers attrMembers, DeserializerTypes types, ITypeSymbol declaringType, string propertyName, ImmutableArray <AttributeSyntax> attrs, Location?location, ref ImmutableArray <Diagnostic> diags ) { var ignoredDiags = ImmutableArray <Diagnostic> .Empty; var resetType = Utils.GetTypeConstantWithName(attrMembers, attrs, "ResetType", ref ignoredDiags); var resetMethod = Utils.GetConstantsWithName <string>(attrMembers, attrs, "ResetMethodName", ref ignoredDiags); // if anything _tried_ to set a non-default, don't include any defaults if (!resetType.IsEmpty || !resetMethod.IsEmpty) { return(null); } foreach (var candidate in declaringType.GetMembers("Reset" + propertyName)) { var mtd = candidate as IMethodSymbol; if (mtd == null) { continue; } if (mtd.ReturnType.SpecialType != SpecialType.System_Void) { continue; } bool isStatic, takesContext; var ps = mtd.Parameters; if (mtd.IsStatic) { isStatic = true; if (ps.Length == 0) { takesContext = false; } else if (ps.Length == 1) { takesContext = ps[0].IsInReadContext(types.OurTypes); if (!takesContext && !ps[0].Equals(declaringType, SymbolEqualityComparer.Default)) { var diag = Diagnostics.BadResetParameters_StaticOne(location, mtd, ps[0].Type); diags = diags.Add(diag); return(null); } } else { continue; } } else { isStatic = false; takesContext = false; if (ps.Length != 0) { continue; } } return(new Reset(mtd, isStatic, false, false, takesContext)); } return(null); }
private static Reset?GetReset( Compilation compilation, AttributedMembers attrMembers, DeserializerTypes types, INamedTypeSymbol rowType, Location?location, ImmutableArray <AttributeSyntax> attrs, ref ImmutableArray <Diagnostic> diags ) { var reset = Utils.GetMethodFromAttribute( attrMembers, "ResetType", Diagnostics.ResetTypeSpecifiedMultipleTimes, "ResetMethodName", Diagnostics.ResetMethodNameSpecifiedMultipleTimes, Diagnostics.ResetBothMustBeSet, location, attrs, ref diags ); if (reset == null) { return(null); } var(type, name) = reset.Value; var resetMtd = Utils.GetMethod(type, name, location, ref diags); if (resetMtd == null) { return(null); } var methodReturnType = resetMtd.ReturnType; if (methodReturnType.SpecialType != SpecialType.System_Void) { var diag = Diagnostics.MethodMustReturnVoid(location, resetMtd); diags = diags.Add(diag); return(null); } if (resetMtd.IsGenericMethod) { var diag = Diagnostics.MethodCannotBeGeneric(location, resetMtd); diags = diags.Add(diag); return(null); } var accessible = resetMtd.IsAccessible(attrMembers); if (!accessible) { var diag = Diagnostics.MethodNotPublicOrInternal(location, resetMtd); diags = diags.Add(diag); return(null); } var ps = resetMtd.Parameters; bool isStatic; bool takesRow; bool takesRowByRef; bool takesContext; if (resetMtd.IsStatic) { isStatic = true; // Options: // - zero parameters or // - a single parameter of the row type or // - a single parameter of `in ReadContext` or // - two parameters, the first of the row type (which may be by ref) and the second of `in ReadContext` if (ps.Length == 0) { // zero parameters takesRow = false; takesRowByRef = false; takesContext = false; } else if (ps.Length == 1) { var p0 = ps[0]; if (p0.RefKind == RefKind.In) { // a single parameter of `in ReadContext` if (!p0.IsInReadContext(types.OurTypes)) { var diag = Diagnostics.BadResetParameters_StaticOne(location, resetMtd, rowType); diags = diags.Add(diag); return(null); } takesRow = false; takesRowByRef = false; takesContext = true; } else if (p0.RefKind == RefKind.None) { // a single parameter of the row type if (!p0.IsNormalParameterOfType(compilation, rowType)) { var diag = Diagnostics.BadResetParameters_StaticOne(location, resetMtd, rowType); diags = diags.Add(diag); return(null); } takesRow = true; takesRowByRef = false; takesContext = false; } else { var diag = Diagnostics.BadResetParameters_StaticOne(location, resetMtd, rowType); diags = diags.Add(diag); return(null); } } else if (ps.Length == 2) { // two parameters, the first of the row type (which may be by ref) and the second of `in ReadContext` var p0 = ps[0]; if (!p0.RefKind.IsNormalOrByRef()) { var diag = Diagnostics.BadResetParameters_StaticTwo(location, resetMtd, rowType); diags = diags.Add(diag); return(null); } if (!p0.Type.Equals(rowType, SymbolEqualityComparer.Default)) { var diag = Diagnostics.BadResetParameters_StaticTwo(location, resetMtd, rowType); diags = diags.Add(diag); return(null); } var p1 = ps[1]; if (!p1.IsInReadContext(types.OurTypes)) { var diag = Diagnostics.BadResetParameters_StaticTwo(location, resetMtd, rowType); diags = diags.Add(diag); return(null); } takesRow = true; takesRowByRef = p0.RefKind == RefKind.Ref; takesContext = true; } else { var diag = Diagnostics.BadResetParameters_TooMany(location, resetMtd); diags = diags.Add(diag); return(null); } } else { isStatic = false; // be on the row type... var declaredOn = Utils.NonNull(resetMtd.ContainingType); var conversion = compilation.ClassifyConversion(rowType, declaredOn); var canConvert = conversion.IsImplicit || conversion.IsIdentity; if (!canConvert) { var diag = Diagnostics.BadReset_NotOnRow(location, resetMtd, rowType); diags = diags.Add(diag); return(null); } // Options: // - zero parameters or // - a single `in ReadContext` parameter. if (ps.Length == 0) { takesRow = true; takesRowByRef = false; takesContext = false; } else if (ps.Length == 1) { var p0 = ps[0]; if (!p0.IsInReadContext(types.OurTypes)) { var diag = Diagnostics.BadResetParameters_InstanceOne(location, resetMtd); diags = diags.Add(diag); return(null); } takesRow = true; takesRowByRef = false; takesContext = true; } else { var diag = Diagnostics.BadResetParameters_TooMany(location, resetMtd); diags = diags.Add(diag); return(null); } } return(new Reset(resetMtd, isStatic, takesRow, takesRowByRef, takesContext)); }
private static Setter?GetSetterForMethod( Compilation compilation, DeserializerTypes types, ITypeSymbol rowType, IMethodSymbol method, Location?location, ref ImmutableArray <Diagnostic> diags ) { var methodReturnType = method.ReturnType; if (methodReturnType.SpecialType != SpecialType.System_Void) { var diag = Diagnostics.MethodMustReturnVoid(location, method); diags = diags.Add(diag); return(null); } if (method.IsGenericMethod) { var diag = Diagnostics.MethodCannotBeGeneric(location, method); diags = diags.Add(diag); return(null); } ITypeSymbol takesValue; bool takesRow; bool takesRowByRef; bool takesContext; var ps = method.Parameters; if (method.IsStatic) { // Options: // - take 1 parameter (the result of the parser) or // - take 2 parameters, the result of the parser and an `in ReadContext` or // - take 2 parameters, the row type (which may be passed by ref), and the result of the parser or // - take 3 parameters, the row type (which may be passed by ref), the result of the parser, and `in ReadContext` if (ps.Length == 0) { var diag = Diagnostics.BadSetterParameters_TooFew(location, method); diags = diags.Add(diag); return(null); } else if (ps.Length == 1) { // take 1 parameter (the result of the parser) var p0 = ps[0]; if (p0.RefKind != RefKind.None) { var diag = Diagnostics.BadSetterParameters_StaticOne(location, method); diags = diags.Add(diag); return(null); } takesValue = p0.Type; takesRow = false; takesRowByRef = false; takesContext = false; } else if (ps.Length == 2) { var p1 = ps[1]; if (p1.IsInReadContext(types.OurTypes)) { // take 2 parameters, the result of the parser and an `in ReadContext` var p0 = ps[0]; if (p0.RefKind != RefKind.None) { var diag = Diagnostics.BadSetterParameters_StaticTwo(location, method, rowType); diags = diags.Add(diag); return(null); } takesValue = p0.Type; takesRow = false; takesRowByRef = false; takesContext = true; } else { // take 2 parameters, the row type (which may be passed by ref), and the result of the parser var p0 = ps[0]; if (!p0.Type.Equals(rowType, SymbolEqualityComparer.Default)) { var diag = Diagnostics.BadSetterParameters_StaticTwo(location, method, rowType); diags = diags.Add(diag); return(null); } var p0RefKind = p0.RefKind; if (!p0RefKind.IsNormalOrByRef()) { var diag = Diagnostics.BadSetterParameters_StaticTwo(location, method, rowType); diags = diags.Add(diag); return(null); } if (p1.RefKind != RefKind.None) { var diag = Diagnostics.BadSetterParameters_StaticTwo(location, method, rowType); diags = diags.Add(diag); return(null); } takesValue = p1.Type; takesRow = true; takesRowByRef = p0RefKind == RefKind.Ref; takesContext = false; } } else if (ps.Length == 3) { // take 3 parameters, the row type (which may be passed by ref), the result of the parser, and `in ReadContext` var p0 = ps[0]; if (!p0.RefKind.IsNormalOrByRef()) { var diag = Diagnostics.BadSetterParameters_StaticThree(location, method, rowType); diags = diags.Add(diag); return(null); } if (!p0.Type.Equals(rowType, SymbolEqualityComparer.Default)) { var diag = Diagnostics.BadSetterParameters_StaticThree(location, method, rowType); diags = diags.Add(diag); return(null); } var p1 = ps[1]; if (p1.RefKind != RefKind.None) { var diag = Diagnostics.BadSetterParameters_StaticThree(location, method, rowType); diags = diags.Add(diag); return(null); } var p2 = ps[2]; if (!p2.IsInReadContext(types.OurTypes)) { var diag = Diagnostics.BadSetterParameters_StaticThree(location, method, rowType); diags = diags.Add(diag); return(null); } takesValue = p1.Type; takesRow = true; takesRowByRef = p0.RefKind == RefKind.Ref; takesContext = true; } else { var diag = Diagnostics.BadSetterParameters_TooMany(location, method); diags = diags.Add(diag); return(null); } } else { takesRow = false; takesRowByRef = false; // Options: // - be on the row type, and take 1 parameter (the result of the parser) or // - be on the row type, and take 2 parameters, the result of the parser and an `in ReadContext` if (ps.Length == 0) { var diag = Diagnostics.BadSetterParameters_TooFew(location, method); diags = diags.Add(diag); return(null); } else if (ps.Length == 1) { // take 1 parameter (the result of the parser) or var p0 = ps[0]; if (p0.RefKind != RefKind.None) { var diag = Diagnostics.BadSetterParameters_InstanceOne(location, method); diags = diags.Add(diag); return(null); } takesValue = p0.Type; takesContext = false; } else if (ps.Length == 2) { // take 2 parameters, the result of the parser and an `in ReadContext` var p0 = ps[0]; if (p0.RefKind != RefKind.None) { var diag = Diagnostics.BadSetterParameters_InstanceTwo(location, method); diags = diags.Add(diag); return(null); } var p1 = ps[1]; if (!p1.IsInReadContext(types.OurTypes)) { var diag = Diagnostics.BadSetterParameters_InstanceTwo(location, method); diags = diags.Add(diag); return(null); } takesValue = p0.Type; takesContext = true; } else { var diag = Diagnostics.BadSetterParameters_TooMany(location, method); diags = diags.Add(diag); return(null); } } return(new Setter(method, takesValue, takesRow, takesRowByRef, takesContext)); }
internal static InstanceProvider?ForMethod( Compilation compilation, AttributedMembers attrMembers, DeserializerTypes types, Location?loc, INamedTypeSymbol rowType, INamedTypeSymbol hostType, string mtdName, ref ImmutableArray <Diagnostic> diags ) { var instanceProviderMtd = Utils.GetMethod(hostType, mtdName, loc, ref diags); if (instanceProviderMtd == null) { return(null); } var instanceProviderLoc = instanceProviderMtd.Locations.FirstOrDefault(); var methodReturnType = instanceProviderMtd.ReturnType; if (methodReturnType.SpecialType != SpecialType.System_Boolean) { var diag = Diagnostics.MethodMustReturnBool(instanceProviderLoc, instanceProviderMtd); diags = diags.Add(diag); return(null); } if (!instanceProviderMtd.IsStatic) { var diag = Diagnostics.MethodNotStatic(instanceProviderLoc, instanceProviderMtd); diags = diags.Add(diag); return(null); } var accessible = instanceProviderMtd.IsAccessible(attrMembers); if (!accessible) { var diag = Diagnostics.MethodNotPublicOrInternal(instanceProviderLoc, instanceProviderMtd); diags = diags.Add(diag); return(null); } var ps = instanceProviderMtd.Parameters; if (ps.Length != 2) { var diag = Diagnostics.BadInstanceProviderParameters(instanceProviderLoc, instanceProviderMtd); diags = diags.Add(diag); return(null); } var p0 = ps[0]; if (!p0.IsInReadContext(types.OurTypes)) { var diag = Diagnostics.BadInstanceProviderParameters(instanceProviderLoc, instanceProviderMtd); diags = diags.Add(diag); return(null); } var p1 = ps[1]; if (p1.RefKind != RefKind.Out) { var diag = Diagnostics.BadInstanceProviderParameters(instanceProviderLoc, instanceProviderMtd); diags = diags.Add(diag); return(null); } var conversion = compilation.ClassifyConversion(p1.Type, rowType); var canConvert = conversion.IsImplicit || conversion.IsIdentity; if (!canConvert) { var diag = Diagnostics.BadInstanceProviderParameters(instanceProviderLoc, instanceProviderMtd); diags = diags.Add(diag); return(null); } return(new InstanceProvider(false, instanceProviderMtd, p1.Type)); }
internal static InstanceProvider?ForConstructorWithParameters(Compilation compilation, DeserializerTypes types, INamedTypeSymbol rowType, ConstructorDeclarationSyntax cons, ref ImmutableArray <Diagnostic> diags) { var model = compilation.GetSemanticModel(cons.SyntaxTree); var hasErrors = false; foreach (var p in cons.ParameterList.Parameters) { var pAttrs = p.AttributeLists; var foundMemberAttr = false; foreach (var attrList in pAttrs) { foreach (var pAttr in attrList.Attributes) { var attrTypeInfo = model.GetTypeInfo(pAttr); var attrType = attrTypeInfo.Type; if (attrType == null) { continue; } if (attrType.Equals(types.OurTypes.DeserializerMemberAttribute, SymbolEqualityComparer.Default)) { foundMemberAttr = true; break; } } if (foundMemberAttr) { break; } } if (!foundMemberAttr) { // no need to raise a diagnostic here, it'll be found elsewhere hasErrors = true; } } if (hasErrors) { return(null); } var decl = Utils.NonNull(model.GetDeclaredSymbol(cons)); return(new InstanceProvider(true, decl, rowType)); }