/// <summary>
/// Get Derivation enumeration .
/// </summary>
public static StructureDefinition.TypeDerivationRule GetDerivation(this ElementDefinition elementDefinition)
{
Extension ns = elementDefinition.GetExtension(DerivationExtensionUri);
if (ns == null)
{
throw new Exception("Missing Derivation extension element");
}
Code value = (Code)ns.Value;
switch (value.Value)
{
case "specialization": return(StructureDefinition.TypeDerivationRule.Specialization);
case "constraint": return(StructureDefinition.TypeDerivationRule.Constraint);
default: throw new Exception($"Unexpected value in Derivation code {value.Value}");
}
}
