internal Evaluation Evaluate(Expression/*!*/ parent, out Expression/*!*/ expr)
{
if (HasValue)
{
expr = Expression;
return new Evaluation(parent, parent.Evaluate(Value));
}
expr = Literalize();
return new Evaluation(parent);
}
internal static Evaluation ReadOnlyEvaluate(Expression/*!*/ parent, Evaluation eval1, Evaluation eval2)
{
if (eval1.HasValue && eval2.HasValue)
return new Evaluation(parent, parent.Evaluate(eval1.Value, eval2.Value));
return new Evaluation(parent);
}
internal Evaluation ReadOnlyEvaluate(Expression/*!*/ parent)
{
if (HasValue)
return new Evaluation(parent, parent.Evaluate(Value));
return new Evaluation(parent);
}
internal static Evaluation Evaluate(Expression/*!*/ parent, Evaluation eval1, out Expression/*!*/ expr1,
Evaluation eval2, out Expression/*!*/ expr2)
{
if (eval1.HasValue && eval2.HasValue)
{
expr1 = eval1.Expression;
expr2 = eval2.Expression;
return new Evaluation(parent, parent.Evaluate(eval1.Value, eval2.Value));
}
expr1 = eval1.Literalize();
expr2 = eval2.Literalize();
return new Evaluation(parent);
}