TBD
ネットワーク応用通信研究所
Heroku
Rubyアソシエーション
@yukihiro_matz
Yukihiro "Matz" Matsumoto
まつもとゆきひろ
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TBD
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To Be Defined
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Toward Brain-aware Design
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まつもとゆきひろ
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プログラミング言語Ruby開発者
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プログラミング言語Ruby創始者
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YAPC
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Yet Another Perl Conference
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アウェイ感
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1997 Perl Conference Japan
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2000 Perl/Ruby Conference (京
都)
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2006 YAPC::Asia Tokyo
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2015 YAPC::Asia Tokyo Final
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Rubyの話は封印
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「Perlにelse ifを追加した話」
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Ruby創始者でない私
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言語デザイナー
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3D XPoint
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高速大容量不揮発性メモリ
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DRAMの速度と耐久性
SSDの容量と不揮発性
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CPU
↓
揮発性一次記憶
↓
不揮発性二次記憶
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CPU
↓
不揮発性一次記憶
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1TB不揮発性メインメモリ
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どんな言語が必要か
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と、思ったが
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１５分ぶんでネタ切れ
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ごめんなさい
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封印を解く
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FAQ
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今、新しい言語を設計したら
どんな言語にしますか？
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Rubyの反省点
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Rubyの悪口
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Perlの影響
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「$<変数>」
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状態を避ける
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「$=」
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Lispの影響
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Fixnum, Bignum
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String, Symbol
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Proc, Lambda
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「使い分け」を避ける
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20年前とのアーキテクチャの変化
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マルチコア
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スレッドセーフ性
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イミュータブルデータ
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GIL
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スレッドセーフ
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Cライブラリ
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コンカレンシーモデル
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アクター
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シェア・ボロー・モデル
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ストリーム
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Ruby 3.0
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「Rubyとは違う」言語
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２０年前とは違うアーキテクチャ
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マルチコア
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高レベル抽象 (DSL)
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関数型言語の影響
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温故知新
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アーキテクチャの振り子
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サーバー・クライアント
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パフォーマンス・生産性
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マルチコア時代のシェルスクリプト
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データベース→データフロー
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パイプライン→マルチコア
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プロセス→スレッド
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プログラミング言語としてのシェル
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新言語の余地
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Rubyに近いポリシー
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Rubyの反省を活かす設計
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Rubyと違う判断
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Streem
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Stream or Flow based language
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1. パイプラインを組み立てる手続き
型プログラム
2. パイプラインをデータが流れるイ
ベントループ
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stdin | stdout
cat pipeline
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# simple echo server on port 8007
tcp_server(8007) | {s ->
s | s
}
simple echo server
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# simple netcat on port 8007
s = tcp_socket("localhost", 8007)
stdin | s
s | stdout
simple netcat client
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1. パイプラインを組み立てる手続き
型プログラム
2. パイプラインをデータが流れるイ
ベントループ
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ピタゴラスイッチ・プログラミング
Rube Goldberg Programming
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OK Go
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Rubyと違う判断
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ブレース
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言語の区別
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イミュータブルデータ
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効率
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エラー処理
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明示的チェック(C, Go)
例外処理(Java, Ruby, etc)
Optional(Swift, OCaml, etc)
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デフォルト無視
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Rubyの反省を活かす設計
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大クラス主義
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「使い分け」を減らす
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より少ないデータ構造
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数値
文字列
配列
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数値
整数
浮動小数点数
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内部実装は切り替える
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文字列
文字列
シンボル
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「:foo」は文字列リテラル
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配列
配列
ハッシュ
オブジェクト
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[1, 2, 3]
Array expression
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[a: 1, b: 2, c: 3]
Array elements can be labeled
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[1, foo: 2, bar: 3]
Array can be partially labeled
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はじまり
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日経Linux
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「作りながら学ぶプログラミング言
語」
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2014年12月
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github.com/matz/streem
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200行のプロトタイプ
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HackerNews/Redditのトレンドに
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OSSの新たな知見
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Matz伝説
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現状
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github.com/matz/streem
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簡単なサンプルは動く
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Thanks @mattn
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パイプライン
イベントループ
基本的データ構造
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ファイルI/O
ソケットI/O
CSVパース
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関数定義なし
クラス定義なし
ライブラリなし
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遠い実用
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言語デザインの教材
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将来への期待
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未来
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小規模データ分析
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シンプルウェブサービス
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意外と広い応用範囲
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イベントドリブン
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フローベースプログラミング
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リアクティブプログラミング(もどき)
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まとめ
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新言語の余地はいつもある
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環境の変化は新言語を生む
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言語デザインは楽しい
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Streem面白い
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一緒に遊ぼうっ！
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