/// <summary>
/// Registers in the Store for later use the IEqualityComparer specified.
/// </summary>
public void Add <T>(IEqualityComparer <T> comparer)
{
if (comparer == null)
{
throw new ArgumentNullException(nameof(comparer), "An IEqualityComparer instance is required.");
}
Type typeKey = typeof(T);
EqualityComparerWrapper <T> comparerWrapper = new EqualityComparerWrapper <T>(comparer);
//Adds or replaces the old comparer
comparerWrappers[typeKey] = comparerWrapper;
}
/// <summary>
/// Returns the IEqualityComparer instance for the type specified or default comparer if none was registered.
/// </summary>
public IEqualityComparerWrapper Get <T>()
{
Type typeKey = typeof(T);
bool foundSomething = comparerWrappers.TryGetValue(typeKey, out IEqualityComparerWrapper maybeWrapper);
EqualityComparerWrapper <T> maybeWrapperForType = maybeWrapper as EqualityComparerWrapper <T>;
if (maybeWrapperForType == null)
{
return(EqualityComparerWrapper <T> .Default);
}
return(maybeWrapperForType);
}
