build method
Implementation
@override
String build(Context context, ParserResult? result) {
final fast = result == null;
final values = context.allocateLocals(['list', 'ok']);
final r1 = context.getResult(parser, !fast);
values.addAll({
'O': '$O',
'p1': parser.build(context, r1),
});
return render2(fast, _templateFast, _template, values, [result, r1]);
}