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  <author_name>gfx</author_name>
  <author_url>https://blog.hatena.ne.jp/gfx/</author_url>
  <blog_title>Islands in the byte stream (legacy)</blog_title>
  <blog_url>https://gfx.hatenadiary.org/</blog_url>
  <categories>
    <anon>Perl</anon>
  </categories>
  <description>id:tokuhiromの示唆を得て，Native traits/AttributeHelpersについて考えてみた。 現在MooseではMX::AttributeHelpersが&quot;Native traits&quot;として組み込みになっているが，それにもかかわらずhas()の時点でtraits =&gt; ['Array']などとしないと使用できない。これは冗長だ。 use Any::Moose; has foo =&gt; ( is =&gt; 'ro', isa =&gt; 'ArrayRef', traits =&gt; ['Array'], # 冗長 handles =&gt; { # ... }, ); &quot;isa&quot;でArra…</description>
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  <image_url></image_url>
  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2009-10-14 14:09:42</published>
  <title>Yet another native traits in Moose</title>
  <type>rich</type>
  <url>https://gfx.hatenadiary.org/entry/20091014/1255496982</url>
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