internal static object GetComparer(RuntimeTypeHandle t)
{
RuntimeTypeHandle comparerType;
RuntimeTypeHandle openComparerType = default(RuntimeTypeHandle);
RuntimeTypeHandle comparerTypeArgument = default(RuntimeTypeHandle);
if (RuntimeAugments.IsNullable(t))
{
RuntimeTypeHandle nullableType = RuntimeAugments.GetNullableType(t);
if (ImplementsIComparable(nullableType))
{
openComparerType = typeof(NullableComparer <>).TypeHandle;
comparerTypeArgument = nullableType;
}
}
if (EqualityComparerHelpers.IsEnum(t))
{
openComparerType = typeof(EnumComparer <>).TypeHandle;
comparerTypeArgument = t;
}
if (openComparerType.Equals(default(RuntimeTypeHandle)))
{
if (ImplementsIComparable(t))
{
openComparerType = typeof(GenericComparer <>).TypeHandle;
comparerTypeArgument = t;
}
else
{
openComparerType = typeof(ObjectComparer <>).TypeHandle;
comparerTypeArgument = t;
}
}
bool success = RuntimeAugments.TypeLoaderCallbacks.TryGetConstructedGenericTypeForComponents(openComparerType, new RuntimeTypeHandle[] { comparerTypeArgument }, out comparerType);
if (!success)
{
Environment.FailFast("Unable to create comparer");
}
return(RuntimeAugments.NewObject(comparerType));
}
public sealed override bool Equals(T x, T y)
{
return(EqualityComparerHelpers.EnumOnlyEquals(x, y));
}