private ExecutionPath(IEnumerable <IExpression> path)
{
#if DEBUG
this.DebugId = new DebugId(this.GetType());
#endif
this.path = path.StoreReadOnly();
}
protected EntityInstanceSet(IEnumerable <IEntityInstance> instances)
{
#if DEBUG
DebugId = new DebugId(this.GetType());
#endif
// we won't match against jokers here so we can use reference comparison
// since all entity instances are singletons
this.elements = instances.ToHashSet(EntityInstance.ComparerI);
this.NameOf = NameReferenceUnion.Create(this.elements.Select(it => it.NameOf));
this.PureNameOf = NameReferenceUnion.Create(this.elements.Select(it => it.PureNameOf));
if (this.elements.Count <= 1)
{
throw new ArgumentOutOfRangeException();
}
foreach (IEntityInstance elem in elements)
{
this.Lifetime = elem.Lifetime.Shorter(this.Lifetime);
}
}
protected Node()
{
#if DEBUG
DebugId = new DebugId(this.GetType());
#endif
}