private IEnumerable <Change> GetChanges(Change change)
{
// ReSharper disable once SwitchStatementMissingSomeEnumCasesNoDefault
switch (change.Operation)
{
case Operation.Modify:
return(_differ.GetChanges(
ToComponents(change.PreviousValue),
ToComponents(change.NewValue)));
case Operation.Delete:
return(ToComponents(change.PreviousValue)
.Select((p, index) => new Change()
{
Index = index,
Operation = Operation.Delete,
PreviousValue = p,
NewValue = null
}));
case Operation.Insert:
return(ToComponents(change.NewValue)
.Select((p, index) => new Change()
{
Index = index,
Operation = Operation.Insert,
PreviousValue = null,
NewValue = p
}));
}
return(null);
}
