/// <summary>
/// Gets an evaluator delegate for the specified <paramref name="member"/>.
/// </summary>
/// <param name="member">The member to get an evaluator delegate for.</param>
/// <returns>An evaluator delegate for the specified <paramref name="member"/>.</returns>
public override Delegate GetEvaluator(MemberInfo member)
{
if (ShouldCache(member))
{
return(_getEvaluator.Delegate(member));
}
else
{
return(base.GetEvaluator(member));
}
}
public T Intern(T value)
{
var weakRef = _delegate.Delegate(value);
if (!weakRef.TryGetTarget(out T res))
{
res = _clone(value);
weakRef.SetTarget(res);
}
return(res);
}
// NB: Hashing of members is independent of any context. This assumption would change in case members
// could have references to generic parameters of defining types. However, we don't deal with open
// generic declaring types for members in the context of expression trees, so we can memoize just
// fine over here.
public override int Visit(MemberInfoSlim member) => _visitCache.Delegate(member);