40     update(top, bottom) {  argument
48         if (top !== null)
49             startline = top.endline + 1;
60         this.matcher.onAjax (top, bottom, startline, endline);
71             const top = editor.getLineRect(match.startline).top;
73             match.scroll = {top:top, bottom:bottom};  property
103                         shift = editor.getLineRect(match.startline).top - match.scroll.top;
104                     match.scroll.top += shift;
151             const top = editor.getLineRect(match.startline).top;
153             match.scroll = {top:top, bottom:bottom};  property
165             const top = editor.getLineRect(match.startline).top;
168             element.style.top =  match.scroll.top+'px';
169             element.style.height = (match.scroll.bottom - match.scroll.top)+'px';