/// <summary>
/// Fast count all objects of a given class, or in a RealmResults after casting.
/// </summary>
/// <remarks>
/// Resolves to this method instead of the LINQ static extension <c>Count<T>(this IEnumerable<T>)</c>, when used directly on Realm.All.
/// <br>
/// if someone CASTS a RealmResults<T> variable from a Where call to
/// a RealmResults<T> they change its compile-time type from IQueryable<blah> (which invokes LINQ)
/// to RealmResults<T> and thus ends up here.
/// </remarks>
/// <returns>Count of all objects in a class or in the results of a search, without instantiating them.</returns>
public int Count()
{
if (_allRecords)
{
// use the type captured at build based on generic T
var tableHandle = _realm.Metadata [ObjectSchema.Name].Table;
return((int)NativeTable.CountAll(tableHandle));
}
// normally we would be in RealmQRealmResultsr.VisitMethodCall, not here
// however, casting as described in the remarks above can cause this method to be invoked.
// as in the unit test CountFoundWithCasting
return((int)ResultsHandle.Count());
}
