Return the value of this attribute for node t, always returning
u but only evaluating it once.
Return the value of this attribute for node t, always returning
u but only evaluating it once.
Report a cycle in the calculation of this attribute discovered when
evaluating the attribute on value t.
Report a cycle in the calculation of this attribute discovered when
evaluating the attribute on value t. Throws an IllegalStateException.
The attribute's string representation is its name.
The attribute's string representation is its name.
A constant attribute of a node type
Twith value of typeU. The value is given by the computationuwhich is evaluated at most once.