private IEnumerable <ICountingStrategy> ForArray()
{
if (values is Array)
{
yield return(CountingStrategy.ByLengthGetter((Array)values));
}
}
private IEnumerable <ICountingStrategy> ForGenericCollection()
{
var collection = values as ICollection;
if (!ReferenceEquals(null, collection))
{
yield return(CountingStrategy.ByCountGetter(() => collection.Count));
yield return(CountingStrategy.ByEnumeratingElements(values));
}
}
private IEnumerable <ICountingStrategy> ForNonGenericCollection()
{
foreach (Type type in values.GetType().GetInterfaces())
{
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(ICollection <>))
{
yield return(CountingStrategy.ByCountGetter(() => (int)type.GetProperty("Count").GetValue(values, null)));
yield return(CountingStrategy.ByEnumeratingElements(values));
}
}
}
private IEnumerable <ICountingStrategy> ForSimpleEnumerable()
{
var type = values.GetType();
var property = type.GetProperty("Count", BindingFlags.Instance | BindingFlags.Public, null, typeof(int), EmptyArray <Type> .Instance, null);
if (property != null)
{
yield return(CountingStrategy.ByReflectedCountGetter(() => (int)property.GetValue(values, null)));
}
yield return(CountingStrategy.ByEnumeratingElements(values));
}
