}
                  );

                  $liEle.css("padding", "2px");

                  $olEle.append($liEle);
                  listNum++;
                }
              }

              if (listNum > 0 && $textArea.val().length >= settingMinTerm) {
                $boxElement.html("");
                $boxElement.append($olEle);
                $boxElement.css("display", "block");

}

var listCache sync.Map // map[string]listImports, keyed by contextName

// listSem is a semaphore restricting concurrent invocations of 'go list'. 'go
// list' has its own internal concurrency, so we use a hard-coded constant (to
// allow the I/O-intensive phases of 'go list' to overlap) instead of scaling
// all the way up to GOMAXPROCS.
var listSem = make(chan semToken, 2)

type semToken struct{}