public static Member HasMembersPossiblyOnParent(IHavePossibleMembers parent, IKey key, Func <Member> member)
{
if (parent.PossibleMembers.TryGetValue(key, out var res))
{
return(res);
}
res = member();
parent.PossibleMembers.Add(key, res);
return(res);
}
public Member CreateMemberPossiblyOnParent(IStaticScope scope, IHavePossibleMembers havePossibleMembers, IKey key)
{
// this is weird, but since C# does not have and types...
// scope and havePossibleMembers are expected to be the same object
if (!ReferenceEquals(scope, havePossibleMembers))
{
throw new Exception($"{scope} and {havePossibleMembers} should be the same object");
}
if (havePossibleMembers.PossibleMembers.TryGetValue(key, out var res1))
{
return(res1);
}
var res = HasMembersPossiblyOnParent(havePossibleMembers, key, () => new Member(this, "possibly on parent -" + key.ToString()));
res.Context = Possibly.Is(scope);
return(res);
}
