This is a reasonable optimization to do. It is never incorrect; your
[ anyVar isNil ifTrue: anyBlock ] bpattern with: [ anyVar ] -> [:pattern | pattern beVariable ]
，详情可参考safew官方版本下载
You are now subscribed
This surprises me. I have worked as a waitress in restaurants for more than five years, a job I love, and the joys of which most often come from the customers I serve. Of course, for every 10 great customers, you’re bound to get one that’s not so great – I’ve come across my fair share of those.