&& !REMOVER.equals(stack.peek())) {
Object o = stack.pop();
if (node.ops.size() > 0) {
switch (((Integer) node.ops.get(0)).intValue()) {
case SpeedoQLConstants.MINUS:
o = new UMinus((Expression) o);
break;
case SpeedoQLConstants.BITWISECOMPL:
o = new Bitwize((Expression) o);
break;
case SpeedoQLConstants.NOT: