public override bool IsDerivedFrom(XmlSchemaDatatype datatype)
{
if (datatype == null)
{
return(false);
}
for (DatatypeImplementation implementation = this; implementation != null; implementation = implementation.baseType)
{
if (implementation == datatype)
{
return(true);
}
}
if (((DatatypeImplementation)datatype).baseType == null)
{
Type type = base.GetType();
Type c = datatype.GetType();
if (!(c == type))
{
return(type.IsSubclassOf(c));
}
return(true);
}
if (((datatype.Variety == XmlSchemaDatatypeVariety.Union) && !datatype.HasLexicalFacets) && (!datatype.HasValueFacets && (this.variety != XmlSchemaDatatypeVariety.Union)))
{
return(((Datatype_union)datatype).IsUnionBaseOf(this));
}
return((((this.variety == XmlSchemaDatatypeVariety.Union) || (this.variety == XmlSchemaDatatypeVariety.List)) && (this.restriction == null)) && (datatype == anySimpleType.Datatype));
}
