public static bool ExpandElement(this ElementNavigator nav, ArtifactResolver source)
{
if (source == null)
{
throw Error.ArgumentNull("source");
}
if (nav.Current == null)
{
throw Error.ArgumentNull("Navigator is not positioned on an element");
}
if (nav.HasChildren)
{
return(true); // already has children, we're not doing anything extra
}
var defn = nav.Current;
if (!String.IsNullOrEmpty(defn.NameReference))
{
var sourceNav = new ElementNavigator(nav);
var success = sourceNav.JumpToNameReference(defn.NameReference);
if (!success)
{
throw Error.InvalidOperation("Trying to navigate down a node that has a nameReference of '{0}', which cannot be found in the StructureDefinition".FormatWith(defn.NameReference));
}
nav.CopyChildren(sourceNav);
}
else if (defn.Type != null && defn.Type.Count > 0)
{
if (defn.Type.Count > 1)
{
throw new NotSupportedException("Element at path {0} has a choice of types, cannot expand".FormatWith(nav.Path));
}
else
{
var coreType = source.GetStructureDefinitionForCoreType(defn.Type[0].Code);
if (coreType == null)
{
throw Error.NotSupported("Trying to navigate down a node that has a declared base type of '{0}', which is unknown".FormatWith(defn.Type[0].Code));
}
if (coreType.Snapshot == null)
{
throw Error.NotSupported("Found definition of base type '{0}', but is does not contain a snapshot representation".FormatWith(defn.Type[0].Code));
}
var sourceNav = new ElementNavigator(coreType.Snapshot.Element);
sourceNav.MoveToFirstChild();
nav.CopyChildren(sourceNav);
}
}
return(true);
}
internal static bool ExpandElement(ElementNavigator nav, ArtifactResolver resolver)
{
if (resolver == null) throw Error.ArgumentNull("source");
if (nav.Current == null) throw Error.ArgumentNull("Navigator is not positioned on an element");
if (nav.HasChildren) return true; // already has children, we're not doing anything extra
var defn = nav.Current;
if (!String.IsNullOrEmpty(defn.NameReference))
{
var sourceNav = new ElementNavigator(nav);
var success = sourceNav.JumpToNameReference(defn.NameReference);
if (!success)
throw Error.InvalidOperation("Trying to navigate down a node that has a nameReference of '{0}', which cannot be found in the StructureDefinition".FormatWith(defn.NameReference));
nav.CopyChildren(sourceNav);
}
else if (defn.Type != null && defn.Type.Count > 0)
{
if (defn.Type.Count > 1)
throw new NotSupportedException("Element at path {0} has a choice of types, cannot expand".FormatWith(nav.Path));
else
{
var coreType = resolver.GetStructureDefinitionForCoreType(defn.Type[0].Code.ToString());
if (coreType == null) throw Error.NotSupported("Trying to navigate down a node that has a declared base type of '{0}', which is unknown".FormatWith(defn.Type[0].Code));
if (coreType.Snapshot == null) throw Error.NotSupported("Found definition of base type '{0}', but is does not contain a snapshot representation".FormatWith(defn.Type[0].Code));
generateBaseElements(coreType.Snapshot.Element);
var sourceNav = new ElementNavigator(coreType.Snapshot.Element);
sourceNav.MoveToFirstChild();
nav.CopyChildren(sourceNav);
}
}
return true;
}