import { Joinpoint, Vardecl } from "../../../Joinpoints.js";
import Checker from "../Checker.js";
import CheckResult from "../CheckResult.js";

/**
 * Check for the presence of lambda objects using capture by reference
 */
export default class LambdaChecker extends Checker {
  private advice =
    " A lambda object must not outlive any of its reference captured objects." +
    "Make sure that variables contained in the lambda expression will not use an obsolete pointer.(CWE-416).\n\n";

  constructor() {
    super("lambda");
  }

  check($node: Joinpoint) {
    if (
      !$node.code.match(/.*\[&\]\s*\(.*\)\s*\{.*\}.*/) ||
      !($node instanceof Vardecl)
    ) {
      return;
    }

    return new CheckResult(this.name, $node, this.advice);
  }
}