System.Xml.Serialization.XmlCodeExporter.ExportMetadata C# (CSharp) Method

        void ExportMetadata(CodeAttributeDeclarationCollection metadata, Type attributeType, string name, string ns, TypeDesc typeDesc, TypeDesc dataTypeDesc, object isNullable, XmlSchemaForm form, int nestingLevel, int sequenceId) {
            CodeAttributeDeclaration attribute = new CodeAttributeDeclaration(attributeType.FullName);
            if (name != null) {
                attribute.Arguments.Add(new CodeAttributeArgument(new CodePrimitiveExpression(name)));
            }
            if (typeDesc != null) {
                if (isNullable != null && (bool)isNullable && typeDesc.IsValueType && !typeDesc.IsMappedType && CodeProvider.Supports(GeneratorSupport.GenericTypeReference)) {
                    attribute.Arguments.Add(new CodeAttributeArgument(new CodeTypeOfExpression("System.Nullable`1[" + typeDesc.FullName + "]")));
                    isNullable = null;
                }
                else {
                    attribute.Arguments.Add(new CodeAttributeArgument(new CodeTypeOfExpression(typeDesc.FullName)));
                }
            }
            if (form != XmlSchemaForm.None) {
                attribute.Arguments.Add(new CodeAttributeArgument("Form", new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(typeof(XmlSchemaForm).FullName), Enum.Format(typeof(XmlSchemaForm), form, "G"))));

                if (form == XmlSchemaForm.Unqualified && ns != null && ns.Length == 0) {
                    ns = null;
                }
            }
            if (ns != null ) {
                attribute.Arguments.Add(new CodeAttributeArgument("Namespace", new CodePrimitiveExpression(ns)));
            }
            if (dataTypeDesc != null && dataTypeDesc.IsAmbiguousDataType && !dataTypeDesc.IsMappedType) {
                attribute.Arguments.Add(new CodeAttributeArgument("DataType", new CodePrimitiveExpression(dataTypeDesc.DataType.Name)));
            }
            if (isNullable != null) {
                attribute.Arguments.Add(new CodeAttributeArgument("IsNullable", new CodePrimitiveExpression((bool)isNullable)));
            }
            if (nestingLevel > 0) {
                attribute.Arguments.Add(new CodeAttributeArgument("NestingLevel", new CodePrimitiveExpression(nestingLevel)));
            }
            if (sequenceId >= 0) {
                attribute.Arguments.Add(new CodeAttributeArgument("Order", new CodePrimitiveExpression(sequenceId)));
            }
            if (attribute.Arguments.Count == 0 && attributeType == typeof(XmlElementAttribute)) return;
            metadata.Add(attribute);
        }