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[ruby-dev:28879] Re: when *a: msg#00203

lang.ruby.devel

Subject: [ruby-dev:28879] Re: when *a

なかだです。

At Wed, 28 Jun 2006 00:52:05 +0900,
Yukihiro Matsumoto wrote in [ruby-dev:28871]:
> |これだと when /b/, *[/a/] のような場合に動作してませんでした。
> |現状ではargsをそのまま使うようになっていますが、「ひとつひとつ
> |評価してはマッチさせる」という動作には不向きです。when_argsを復
> |活させたほうがいいような気がします。
>
> when_argsを復活させてもいいですけど、その場合にはmulti splat
> に対応させる必要があると思います。それが面倒でargsをそのまま
> 使ってるわけですが。

[ruby-dev:28844]は対応してるはずですが。というのはともかく、

case "b" when *[/a/], /b/; end

がunknown node typeになります。


Index: eval.c
===================================================================
RCS file: /cvs/ruby/src/ruby/eval.c,v
retrieving revision 1.909
diff -p -U2 -r1.909 eval.c
--- eval.c 27 Jun 2006 23:13:19 -0000 1.909
+++ eval.c 28 Jun 2006 03:55:00 -0000
@@ -2712,5 +2712,6 @@ when_check(NODE *tag, VALUE val, VALUE s
return when_check(tag->nd_body, val, self);
default:
- unknown_node(tag);
+ if (when_cond(val, rb_eval(self, tag))) return Qtrue;
+ break;
}
return Qfalse;


--
--- 僕の前にBugはない。
--- 僕の後ろにBugはできる。
中田 伸悦




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