code: function link(linkSet) {
  
        var loader = linkSet.loader;
  
        // console.log('linking {' + logloads(loads) + '}');
        // snapshot(loader);
  
        // 15.2.5.3.1 LinkageGroups alternative implementation
  
        // build all the groups
        // because the first load represents the top of the tree
        // for a given linkset, we can work down from there
        var groups = [];
        var startingLoad = linkSet.loads[0];
        startingLoad.groupIndex = 0;
        buildLinkageGroups(startingLoad, linkSet.loads, groups, loader);
  
        // determine the kind of the bottom group
        var curGroupDeclarative = (startingLoad.kind == 'declarative') == groups.length % 2;
  
        // run through the groups from bottom to top
        for (var i = groups.length - 1; i >= 0; i--) {
          var group = groups[i];
          for (var j = 0; j < group.length; j++) {
            var load = group[j];
  
            // 15.2.5.5 LinkDeclarativeModules adjusted
            if (curGroupDeclarative) {
              linkDeclarativeModule(load, linkSet.loads, loader);
            }
            // 15.2.5.6 LinkDynamicModules adjusted
            else {
              var module = load.execute();
              if (!(module.__esModule))
                throw new TypeError('Execution must define a Module instance');
              load.module = {
                module: module
              };
              load.status = 'linked';
            }
            finishLoad(loader, load);
          }
  
          // alternative current kind for next loop
          curGroupDeclarative = !curGroupDeclarative;
        }
      }
docs: 15.2.5.4