{"height":"190","categories":["OCaml","\u578b\u7406\u8ad6","\u8a00\u8a9e\u51e6\u7406\u7cfb"],"author_name":"zehnpaard","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fzehnpaard.hatenablog.com%2Fentry%2F2022%2F11%2F16%2F210859\" title=\"Hindley Milner\u578b\u63a8\u8ad6\u306b\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u3066\u3044\u304f\uff11\uff13 List\u306e\u8ffd\u52a0\uff08\u5f8c\u7de8\uff09 - Arantium Maestum\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://zehnpaard.hatenablog.com/entry/2022/11/16/210859","title":"Hindley Milner\u578b\u63a8\u8ad6\u306b\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u3066\u3044\u304f\uff11\uff13 List\u306e\u8ffd\u52a0\uff08\u5f8c\u7de8\uff09","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/zehnpaard/","published":"2022-11-16 21:08:59","blog_title":"Arantium Maestum","provider_url":"https://hatena.blog","type":"rich","image_url":null,"width":"100%","version":"1.0","description":"\u524d\u56de\u306b\u7d9a\u3044\u3066List\u8ffd\u52a0\u306e\u5b9f\u88c5\u3092\u898b\u3066\u3044\u304f\u3002\u4eca\u56de\u306ftypeof\u3067\u4f7f\u308f\u308c\u308b\u30d8\u30eb\u30d1\u95a2\u6570\u306b\u3064\u3044\u3066\u3002 match_list_ty \u524d\u56de\u898b\u3066\u3044\u3063\u305ftypeof\u95a2\u6570\u3067\u65b0\u3057\u304f\u4f7f\u308f\u308c\u305fmatch_list_ty\u306f\u300cty\u3092\u3068\u308a\u30ea\u30b9\u30c8\u578b\u3068\u5358\u4e00\u5316\u3055\u305b\u305f\u4e0a\u3067\u305d\u306e\u30ea\u30b9\u30c8\u578b\u304c\u4fdd\u6301\u3057\u3066\u3044\u308b\u578b\u3092\u8fd4\u3059\u300d\u3068\u3044\u3046\u95a2\u6570\u3002EHead\u306e\u30b1\u30fc\u30b9\u304c\u4e00\u756a\u308f\u304b\u308a\u3084\u3059\u3044\uff1a typeof env level = function ... | EHead e -> match_list_ty (typeof env level e) \u4ed6\u306ematch...ty\u95a2\u6570\u3068\u540c\u3058\u304f\u3001\u5f15\u6570\u306b\u3068\u3063\u305fty\u306b\u5bfe\u3057\u3066\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3057\u3066\u3044\u308b\uff1a let rec match_li\u2026","blog_url":"https://zehnpaard.hatenablog.com/"}