{"categories":["perl"],"width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fgfx.hatenadiary.org%2Fentry%2F20080709%2F1215589748\" title=\"OP\u30b3\u30fc\u30c9\u30d5\u30a3\u30eb\u30bf\u3067\u9ad8\u901f\u306a\u30a2\u30af\u30bb\u30b5\uff08\u3068\u3044\u3046\u30a2\u30a4\u30c7\u30a2\uff09 - Islands in the byte stream (legacy)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","blog_url":"https://gfx.hatenadiary.org/","author_url":"https://blog.hatena.ne.jp/gfx/","published":"2008-07-09 16:49:08","type":"rich","version":"1.0","image_url":null,"url":"https://gfx.hatenadiary.org/entry/20080709/1215589748","height":"190","author_name":"gfx","provider_url":"https://hatena.blog","blog_title":"Islands in the byte stream (legacy)","title":"OP\u30b3\u30fc\u30c9\u30d5\u30a3\u30eb\u30bf\u3067\u9ad8\u901f\u306a\u30a2\u30af\u30bb\u30b5\uff08\u3068\u3044\u3046\u30a2\u30a4\u30c7\u30a2\uff09","description":"perl - no accessor; # \u3060\u3063\u3066\u9045\u3044\u3093\u3060\u3082\u3093\u6700\u8fd1\u6d41\u884c\u306ePL_check\u30cf\u30c3\u30af\u3067\uff0c$o->foo\u3092$o->{foo}\u306b\u66f8\u304d\u63db\u3048\u308bOP\u30b3\u30fc\u30c9\u30d5\u30a3\u30eb\u30bf\u3092\u4f5c\u308c\u306a\u3044\u3082\u306e\u304b\u3068\u601d\u3063\u305f\u3002 $ perl -MO=Concise -e '$o->foo' # \u3053\u308c\u304c 7 <@> leave[1 ref] vKP/REFC ->(end) 1 <0> enter ->2 2 <;> nextstate(main 1 -e:1) v:{ ->3 6 <1> entersub[t2] vKS/TARG ->7 3 <0> pushmark s ->4 - <1> ex-rv2sv sKM/1 ->5 \u2026"}