Beispiel #1
0
        protected void SetChildByRole <T> (Role <T> role, T newChild) where T : AstNode
        {
            AstNode oldChild = GetChildByRole(role);

            if (oldChild.IsNull)
            {
                AddChild(newChild, role);
            }
            else
            {
                oldChild.ReplaceWith(newChild);
            }
        }