2531   Opal.ivar = function(name) {  function
2899   Opal.return_ivar = function(ivar) {  argument
2901       if (this[ivar] == null) { return nil; }
2902       return this[ivar];
2905   Opal.assign_ivar = function(ivar) {  argument
2908       return this[ivar] = val;
2911   Opal.assign_ivar_val = function(ivar, static_val) {  argument
2914       return this[ivar] = static_val;
3264 …rn_ivar = Opal.return_ivar, $assign_ivar = Opal.assign_ivar, $ivar = Opal.ivar, $deny_frozen_acces…
3470             ivar = $ivar(name);
3472         var body = $return_ivar(ivar);
3475         Opal.prop(proto, ivar, nil);
3500             ivar = $ivar(name);
3502         var body = $assign_ivar(ivar)
3508         Opal.prop(proto, ivar, nil);
5038 … 'each', [], function $$8(i){var self = $$8.$$s == null ? this : $$8.$$s, ivar = nil, inspect = ni…
5042             ivar = self.$instance_variable_get(i);
5043             inspect = $$('Opal').$inspect(ivar);
5085       var ivar = self[Opal.ivar(name.substr(1))];
5087       return ivar == null ? nil : ivar;
5097       return self[Opal.ivar(name.substr(1))] = value;;
5106       var key = Opal.ivar(name.substr(1)),
5121       var result = [], ivar;
5126             ivar = name.slice(0, name.length - 1);
5128             ivar = name;
5130           result.push('@' + ivar);
15565 …se, true), 'instance_variables', [], $yield), 'reject', [], function $$56(ivar){var $ret_or_1 = ni…  argument
15568         if (ivar == null) ivar = nil;
15569         if ($truthy(($ret_or_1 = /^@\d+$/.test(ivar)))) {
15572           return ivar['$==']("@length")