System.Xml.Schema.SchemaCollectionCompiler.IsElementFromElement C# (CSharp) Метод

        private bool IsElementFromElement(XmlSchemaElement derivedElement, XmlSchemaElement baseElement) {
            return  (derivedElement.QualifiedName == baseElement.QualifiedName) &&
                    (derivedElement.IsNillable == baseElement.IsNillable) &&
                    IsValidOccurrenceRangeRestriction(derivedElement, baseElement) &&
                    (baseElement.FixedValue == null || baseElement.FixedValue == derivedElement.FixedValue) &&
                    ((derivedElement.BlockResolved | baseElement.BlockResolved) ==  derivedElement.BlockResolved) &&
                    (derivedElement.ElementSchemaType != null) && (baseElement.ElementSchemaType != null) &&
                    XmlSchemaType.IsDerivedFrom(derivedElement.ElementSchemaType, baseElement.ElementSchemaType, ~XmlSchemaDerivationMethod.Restriction);
        }