GopherCon 2019 Report Talk

#gopherdojo で話したGopherCon 2019報告会での発表です

Transcript

1. © - BASE, Inc. X
   GopherCon 報告会
   . “On the Road to Go ”
   . Recommendation to Lightning Talk Speaker
   #gopherdojo
   . . - @hgsgtk
   Kazuki Higashiguchi
   

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2. © - BASE, Inc.
   Agenda
   “On the Road to Go ” by Russ Cox
   GopherCon
   Recommendation to Lightning Talk Speaker
   

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3. © - BASE, Inc.
   : @hgsgtk
   Who am I?
   東⼝ 和暉 ( Higashiguchi Kazuki )
   BASE BANK, Inc. (BASE, Inc.)
   業務としてGopherCon に
   参加
   

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4. © - BASE, Inc.
   Agenda
   “On the Road to Go ” by Russ Cox
   GopherCon
   Recommendation to Lightning Talk Speaker
   

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5. © - BASE, Inc.
   GopherCon
   • 毎年⾏われるアメリカのサンディエゴで
   ⾏われたGoの世界最⼤のカンファレン
   ス
   • https://www.gophercon.com
   

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9. © - BASE, Inc.
   GopherCon
   • DAY Pre-Conference Workshop
   • DAY Sessions & Welcome Party
   • DAY Sessions
   • DAY LT / Community Day
   

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13. © - BASE, Inc.
    Session情報
    • Liveblog (sourcegraph)
    • https://about.sourcegraph.com/go/
    • Talk slide
    • https://github.com/gophercon/
    -talks
    

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14. © - BASE, Inc.
    聴講したSession
    • On the Road to Go
    • How Uber "Go"es
    • Portable, Immediate Mode GUI Programs for Mobile and Desktop
    in % Go
    • Go, pls stop breaking my editor
    • Handling Go Errors
    • Optimization for Number of goroutines Using Feedback Control
    • Contributing to the os Package: How Deep Do You Go?
    • The Athens Project - A Proxy Server for Go Modules
    • Generics in Go
    • You Can't Go Your Own Way: The Standardization of Go at GitHub
    • Small is Going Big: Go on Microcontrollers
    

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15. © - BASE, Inc.
    聴講したSession
    • On the Road to Go
    • How Uber "Go"es
    • Portable, Immediate Mode GUI Programs for Mobile and Desktop
    in % Go
    • Go, pls stop breaking my editor
    • Handling Go Errors
    • Optimization for Number of goroutines Using Feedback Control
    • Contributing to the os Package: How Deep Do You Go?
    • The Athens Project - A Proxy Server for Go Modules
    • Generics in Go
    • You Can't Go Your Own Way: The Standardization of Go at GitHub
    • Small is Going Big: Go on Microcontrollers
    

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16. © - BASE, Inc.
    Agenda
    “On the Road to Go ” by Russ Cox
    GopherCon
    Recommendation to Lightning Talk Speaker
    

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17. © - BASE, Inc.
    “On the Road to Go ”
    

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19. © - BASE, Inc.
    Live Blog
    https://about.sourcegraph.com/go/gophercon- -on-the-road-to-go-
    

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20. © - BASE, Inc.
    https://blog.golang.org/experiment
    

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21. © - BASE, Inc.
    概要
    • Go⾔語開発の考え⽅
    • Experiment/Simplify/Ship
    • Go
    • Error Handling
    • Generics
    • Dependencies Management
    • Go tools
    

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22. © - BASE, Inc.
    Go初期の開発ループ
    • 2つのステージ
    • experimentから学び、
    simplifyする
    https://blog.golang.org/experiment
    

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23. © - BASE, Inc.
    Simplifyのための4つのR
    .Reshaping
    .Redefining
    .Removing
    .Restricting
    

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24. © - BASE, Inc.
    Rs
    Reshaping 再形成 Redefine 再定義
    https://blog.golang.org/experiment
    Removing 削除 Restricting 制約
    • 有⽤性 or 重要性が低いものを
    削除
    • ソースファイル UTF-
    • gofmt
    

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25. © - BASE, Inc.
    Go開発ループ
    • Ship（Goコードの出
    荷）の追加
    • ユーザーが試せるよう
    に
    https://blog.golang.org/experiment
    

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26. © - BASE, Inc.
    Go
    • Error Handling
    • Generics
    • Dependencies Management
    • Go tools
    

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27. © - BASE, Inc.
    Error Value History
    - 2008年 syscall errorはint型で定義
    - `errno int `
    - 2008年 ↑の2時間後error typeが⽣まれる
    - type Error struct、Print()‧String()という２つのシグネ
    チャを持っていた
    - 2009年 Error interface
    - Print()が取り除かれ現在の形へ
    - pkg/errorsなどError experimentsが⾊々
    - experimentの結果が溜まってくる
    

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28. © - BASE, Inc.
    Go Error Handling
    • Error Value Handling
    • Unwrap interface
    • errors.Is
    • errors.As
    • Error syntax
    • check? try? (abandoned)
    

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29. © - BASE, Inc.
    Unwrap interface
    https://blog.golang.org/experiment
    • Optional なinterface
    • くるんだcontext內部のエラーを返す
    

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30. © - BASE, Inc.
    errors.Is
    https://blog.golang.org/experiment
    

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31. © - BASE, Inc.
    errors.As
    https://blog.golang.org/experiment
    

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32. © - BASE, Inc.
    try/check
    • proposal “check”
    • proposal “try”
    • https://go.googlesource.com/
    proposal/+/master/design/ -
    try-builtin.md
    • abandoned.
    

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33. © - BASE, Inc.
    Generics
    https://speakerdeck.com/linyows/learn-about-generics-again
    

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34. © - BASE, Inc.
    https://blog.golang.org/why-generics
    

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35. © - BASE, Inc.
    Dependencies Management
    https://gopherdojo.connpass.com/event/ /
    

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36. © - BASE, Inc.
    Go Tools
    • gopls(“go, please”)
    • https://github.com/golang/go/wiki/
    gopls
    • LSPの実装
    

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37. © - BASE, Inc.
    Agenda
    “On the Road to Go ” by Russ Cox
    GopherCon
    Recommendation to Lightning Talk Speaker
    

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38. https://speakerdeck.com/hgsgtk/building-api-server-side-architecture-for-beginners
    

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39. © - BASE, Inc.
    GopherConでLTはデキる
    • !「英語話せないしな…」
    • !「USAだから⾼度な内容がいるので
    は…」
    

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40. © - BASE, Inc.
    Blog GopherCon に参加、海外カンファレンスで
    LT登壇した経験を振り返る
    https://devblog.thebase.in/entry/ / / /
    

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41. © - BASE, Inc.
    Next LT speaker!
    

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42. © - BASE, Inc.
    聴講したSession⾃分的分類分け
    • Go⾔語⾃体
    • On the Road to Go
    • Go, pls stop breaking my editor
    • Generics in Go
    • Microservice‧⼤規模開発
    • How Uber “Go"es
    • You Can't Go Your Own Way: The Standardization of Go at GitHub
    • Web以外の利⽤
    • Portable, Immediate Mode GUI Programs for Mobile and
    Desktop in % Go
    • Small is Going Big: Go on Microcontrollers
    • （※ 量が多いのでさらにピックアップしてます）
    

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43. © - BASE, Inc.
    国内カンファレンスとの感覚的な違い
    • 規模が⼤きい（会場‧設備）
    • ⾔語Committerや原著の著者が参加し
    てたりする
    • twitterしてる⼈が少ない。交流、アイ
    デアや境遇の交換に重点
    

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