class CommunityMatchExprEvaluator implements CommunityMatchExprVisitor<Boolean, Community> {

  @Override
  public @Nonnull Boolean visitCommunityNot(CommunityNot communityNot, Community arg) {
    return !communityNot.getExpr().accept(this, arg);
  }

  public  CommunityMatchExprEvaluator(CommunityContext ctx);

}