public void Expand(Profile.ProfileStructureComponent structure)
{
if (structure.Differential == null) throw Error.Argument("structure", "structure does not contain a differential specification");
var differential = structure.Differential;
var baseStructure = _loader.LocateBaseStructure(structure.TypeElement);
if (baseStructure == null) throw Error.InvalidOperation("Could not locate the base profile for type {0}", structure.TypeElement.ToString());
if(baseStructure.Snapshot == null) throw Error.InvalidOperation("Base definition to use for expansion lacks a snapshot representation");
// var baseUri = StructureLoader.BuildBaseStructureUri(structure.TypeElement).ToString();
var snapshot = (Profile.ConstraintComponent)baseStructure.Snapshot.DeepCopy();
//DSTU1
//snapshot.SetStructureForm(StructureForm.Snapshot);
//snapshot.SetStructureBaseUri(baseUri.ToString());
//mergeStructure(snapshot, differential);
var fullDifferential = new DifferentialTreeConstructor(differential).MakeTree();
var snapNav = new ElementNavigator(snapshot);
snapNav.MoveToFirstChild();
var diffNav = new ElementNavigator(fullDifferential);
diffNav.MoveToFirstChild();
merge(snapNav, diffNav);
//TODO: Merge search params?
snapNav.CommitChanges();
structure.Snapshot = snapNav.Elements;
}