private static boolean conditional_operation_1(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "conditional_operation_1")) return false;
    boolean r;
    Marker m = enter_section_(b);
    r = consumeToken(b, COLON);
    r = r && operation(b, l + 1, -1);
    exit_section_(b, m, null, r);
    return r;
  }
private static boolean conditional_operation_1(PsiBuilder b, int l)