private boolean requiresExpression(int n) {
if (n < 1) {
return false;
}
final Object parent = stack.get(n - 1);
if (parent instanceof Formula) {
return ((Formula) parent).isMember();
} else if (parent instanceof ResolvedFunCall) {
final ResolvedFunCall funCall = (ResolvedFunCall) parent;
if (funCall.getFunDef().getSyntax() == Syntax.Parentheses) {
return requiresExpression(n - 1);
} else {
int k = whichArg(funCall, (Exp) stack.get(n));
if (k < 0) {
// Arguments of call have mutated since call was placed
// on stack. Presumably the call has already been
// resolved correctly, so the answer we give here is
// irrelevant.
return false;
}
final FunDef funDef = funCall.getFunDef();
final int[] parameterTypes = funDef.getParameterCategories();
return parameterTypes[k] != Category.Set;
}
} else if (parent instanceof UnresolvedFunCall) {
final UnresolvedFunCall funCall = (UnresolvedFunCall) parent;
if (funCall.getSyntax() == Syntax.Parentheses || funCall.getFunName().equals("*")) {
return requiresExpression(n - 1);
} else {
int k = whichArg(funCall, (Exp) stack.get(n));
if (k < 0) {
// Arguments of call have mutated since call was placed
// on stack. Presumably the call has already been
// resolved correctly, so the answer we give here is
// irrelevant.
return false;
}
return requiresExpression(funCall, k);
}
} else {
return false;
}
}
/**
* Returns the scenario inside a calculated member in the scenario dimension. For example, applied
* to [Scenario].[1], returns the Scenario object representing scenario #1.
*
* @param member Wrapper member
* @return Wrapped scenario
*/
static Scenario forMember(final RolapMember member) {
if (isScenario(member.getHierarchy())) {
final Formula formula = ((RolapCalculatedMember) member).getFormula();
final ResolvedFunCall resolvedFunCall = (ResolvedFunCall) formula.getExpression();
final Calc calc = resolvedFunCall.getFunDef().compileCall(null, null);
return ((ScenarioCalc) calc).getScenario();
} else {
return null;
}
}