public PrivateIdSpaceMatcher(DynamicUpdateMapBuilder.NestedIdSpaceFinalizer nestedFinalizer, IdSpace originalPrivateIdSpace, IdSpace updatedPrivateIdSpace)
{
this.privateMap = new DynamicUpdateMap()
{
IsForImplementation = true,
NewDefinitionMemberCount = updatedPrivateIdSpace.MemberCount
};
this.nestedFinalizer = nestedFinalizer;
this.argumentChangeDetected = false;
this.originalPrivateIdSpace = originalPrivateIdSpace;
this.updatedPrivateIdSpace = updatedPrivateIdSpace;
this.matchedActivities = new Queue <Tuple <Activity, Activity> >();
}
public static bool HasPrivateMemberOtherThanArgumentsChanged(DynamicUpdateMapBuilder.NestedIdSpaceFinalizer nestedFinalizer, Activity currentElement, Activity originalElement, bool isMemberOfUpdatedIdSpace, out DynamicUpdateMap argumentChangesMap)
{
Fx.Assert(currentElement != null && originalElement != null, "Both activities must be non-null.");
argumentChangesMap = null;
IdSpace currentPrivateIdSpace = currentElement.ParentOf;
IdSpace originalPrivateIdSpace = originalElement.ParentOf;
// for the implementation of an activity in the IdSpace being updated--but not anywhere deeper
// in the tree--we allow adding, removing or rearranging named private variables.
// We don't support matching unnamed private variables, and we don't support declaring new
// default variable expressions. (That would would offset the private IdSpace, which will be caught by the subsquent checks.)
if ((!isMemberOfUpdatedIdSpace || IsAnyNameless(currentElement.ImplementationVariables) || IsAnyNameless(originalElement.ImplementationVariables)) &&
!ListEquals(currentElement.ImplementationVariables, originalElement.ImplementationVariables, CompareVariableEquality))
{
return(true);
}
if (currentPrivateIdSpace == null && originalPrivateIdSpace == null)
{
return(false);
}
else if ((currentPrivateIdSpace != null && originalPrivateIdSpace == null) || (currentPrivateIdSpace == null && originalPrivateIdSpace != null))
{
return(true);
}
if (!ListEquals <ActivityDelegate>(currentElement.ImplementationDelegates, originalElement.ImplementationDelegates, CompareDelegateEquality))
{
return(true);
}
// compare structural equality of members in the private IdSpaces
PrivateIdSpaceMatcher privateIdSpaceMatcher = new PrivateIdSpaceMatcher(nestedFinalizer, originalPrivateIdSpace, currentPrivateIdSpace);
return(!privateIdSpaceMatcher.Match(out argumentChangesMap));
}
