public static boolean unary_operation(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "unary_operation")) return false;
    if (!nextTokenIsSmart(b, MINUS, PLUS)) return false;
    boolean r, p;
    Marker m = enter_section_(b, l, _NONE_, null);
    r = unary_operation_0(b, l + 1);
    p = r;
    r = p && operation(b, l, 15);
    exit_section_(b, l, m, UNARY_OPERATION, r, p, null);
    return r || p;
  }
public static boolean unary_operation(PsiBuilder b, int l)