/** {@inheritDoc} */
public final Object evaluate() {
Object result = null;
// if the function returns another function, execute it. stop executing
// when the result is not of the expected type.
while (true) {
result = function.evaluate();
if (functionType.isInstance(result)) {
function = (NullaryFunction<?>) result;
continue;
} else {
break;
}
}
return result;
}
/** {@inheritDoc} */
@Override
public int hashCode() {
return "RecursiveEvaluation".hashCode() << 2 ^ function.hashCode();
}
/**
* Get the class of the specified object, or <code>null</code> if <code>o</code> is <code>null
* </code>.
*
* @param f Object to check
* @return Class found
*/
private static Class<?> getClass(NullaryFunction<?> f) {
return f == null ? null : f.getClass();
}
