Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
mocha - ESNext Transpliler の紹介
Search
Taketoshi Aono(青野健利 a.k.a brn)
December 14, 2017
Programming
1
270
mocha - ESNext Transpliler の紹介
古のEcmascript Harmony時代のTransplilerを自作していたので供養します。
Taketoshi Aono(青野健利 a.k.a brn)
December 14, 2017
Tweet
Share
More Decks by Taketoshi Aono(青野健利 a.k.a brn)
See All by Taketoshi Aono(青野健利 a.k.a brn)
document.write再考
brn
6
3k
Parsing Javascript
brn
13
9.1k
JSON & Object Tips
brn
1
430
CA 1Day Youth Bootcamp for Frontend LT
brn
0
860
Modern TypeScript
brn
2
770
javascript - behind the scene
brn
3
710
tc39 proposals
brn
0
820
プロダクト開発とTypeScript
brn
8
2.8k
React-Springでリッチなアニメーション
brn
1
640
Other Decks in Programming
See All in Programming
TokyoR116_BeginnersSession1_環境構築
kotatyamtema
0
100
[JAWS-UG横浜 #79] re:Invent 2024 の DB アップデートは Multi-Region!
maroon1st
1
140
Flutter × Firebase Genkit で加速する生成 AI アプリ開発
coborinai
0
130
SRE、開発、QAが協業して挑んだリリースプロセス改革@SRE Kaigi 2025
nealle
3
4k
JavaScriptツール群「UnJS」を5分で一気に駆け巡る!
k1tikurisu
10
1.8k
ecspresso, ecschedule, lambroll を PipeCDプラグインとして動かしてみた (プロトタイプ) / Running ecspresso, ecschedule, and lambroll as PipeCD Plugins (prototype)
tkikuc
2
3.6k
Amazon ECS とマイクロサービスから考えるシステム構成
hiyanger
3
470
GitHub Actions × RAGでコードレビューの検証の結果
sho_000
0
220
functionalなアプローチで動的要素を排除する
ryopeko
1
1.2k
最近のVS Codeで気になるニュース 2025/01
74th
1
250
Lottieアニメーションをカスタマイズしてみた
tahia910
0
100
AHC041解説
terryu16
0
570
Featured
See All Featured
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
44
9.4k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
365
25k
Art, The Web, and Tiny UX
lynnandtonic
298
20k
Code Review Best Practice
trishagee
66
17k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
29
4.5k
Building Applications with DynamoDB
mza
93
6.2k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
29
2.2k
Optimizing for Happiness
mojombo
376
70k
Six Lessons from altMBA
skipperchong
27
3.6k
KATA
mclloyd
29
14k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
33
2.8k
Fashionably flexible responsive web design (full day workshop)
malarkey
406
66k
Transcript
Mocha ES Harmony Traspiler
Name @brn (ꫬꅿ⨳ⵃ) Occupation ؿٗٝزؒٝسؒٝآص،٥ط؎ذ؍ـؒٝآص، Company Cyberagent ،سذؙأةآؔ AI Messenger
Blog http://abcdef.gets.b6n.ch/ Twitter https://twitter.com/brn227 GitHub https://github.com/brn
剑ⴱח闐זֽלזזְֿהָ֮תׅկ ״ֻ罋ִֿכ⳿ؔث単ךדכ 兛鸐ך単⢪גְׅתׇ
הְֲֽד㢳ⴓ耀ְג ⡦חזזְ涪邌דׅ ׃ַ⡲ך2011/04דׅ ְׅתׇ וֲ׃ג⣘균׃ַׄׯ…
Ecmascript 2017 Ecmascript 2016 Ecmascript 6/2015 E Ec cm ma
as sc cr ri ip pt t h ha ar rm mo on ny y Ecmascript 5 Ecmascript 3
Harmony鋙ִגתַׅ
Ecmascript 4갽䮲ך穗꿀ַծ ぐكٝت٦װⰕד倜ז鎉铂堣腉ך 瘻㹀ח《穈꧊ת
䔲儗ES wikiהְֲل٦آָ㶷㖈׃גֶծ ֿחproposalהstrawmanהְֲ✳珏겲ך 堣腉فٗه٦ؠٕل٦آָ֮
鋅䔲儗ך猘כ չزٓٝأػ؎ٓ⡲պ הזךד֮ Babelזגתזְ
せכ؝٦ؼ٦אזָד Mochaח寸㹀װ mochaכ猘ךקֲָ⯓חㄏせ׃דׅ ذأزخ٦ٕךmocha״⯓ח ת֮⚅ח⳿׃גזְַ䠐זְֽו
Mocha C++ד剅ְEcmascript3ַEcmascript harmonyפךزٓٝأػ ؎ٓ V8䵧鯹׃גְךדreplד㹋ꥷח㢌䳔׃זָ㹋遤〳腉
Debuggable SourceMapָ㶷㖈׃גְזְ儗➿ךד ♧遤♧遤ח遤侧הtry-catch䮠ֿהדرغحؚ〳腉ח
function fibonacci(num) {! var a = 1, b = 0,
temp;! ! while (num >= 0){! temp = a;! a = a + b;! b = temp;! num--;! }! ! return b;! }!
function fibonacci(num) {! try {! __LINE__ = 2;! var a
= 1,! b = 0,! temp;! ! __LINE__ = 4;! while (num >= 0){! ! __LINE__ = 5;! temp = a;! ! __LINE__ = 6;! a = a+b;! ! __LINE__ = 7;! b = temp;! ! __LINE__ = 8;! num -- ;! }! __LINE__ = 11;! return b;! } catch(__mocha_error){! __Runtime.exceptionHandler(__LINE__, __FILE__, __mocha_error);! }! }!
Runtime harmonyך葿ղז㢌䳔遤ֲחRuntime欽䠐 Runtimeכⴓⶴׁגֶ䗳銲ח䘔ׄגappendׁ ׁח؝ٝػ؎ٕ儗חASTתד㢌䳔ׁךדծ鷄⸇ךزٓٝأ ؿؓ٦ي؝أزכקרئٗ
Transofrm Harmonyך圓俑הStrawmanח֮劢䱰欽ך،؎ر؍،ך⚕倯 䱰欽
وصُ،ٕכֿֿח http://brn.github.io/mocha/ja/
Ideas 㛇劤涸חכ䩛דػ٦؟剅ְג AST穈甧גגծַֿAST㢌䕎׃גְֻ 剑䖓כתAST鴬גؿ؋؎ٕח剅ֹ⳿׃
Hard to solve ،ٗ٦ꟼ侧ָ⦜ זח׃ػة٦ָٝ㢳ְ
// thisを束縛しない関数宣言 foo(x, y, z) -> console.log(this);! // thisを束縛しない関数式 var
foo = (x, y, z) -> console.log(this);! // thisを束縛する関数宣言 var foo = (x, y, z) => console.log(this);! // thisを束縛する関数式 foo(x,y,z) => console.log(this);!
File watcher ؿ؋؎ٕ湊鋔堣腉㣐㢌 windowծlinuxծmacדAPIָ麩ֲ… 㧅⼿׃גlinuxכInotifyծ⟃㢩כٕ٦فח׃
V8 V8ך⢪ְ倯项俱ָ㼰זֻג㣐㢌 أٖحسָ窃ה閯ךAbort鸬涪ׅ׃… ا٦أ铣纷湡ח…
libuv ׃ַ閯חLibuvתד䵧鯹׃גְגNode.JSךؙٗ٦ְٝז朐䡾 ח…
תה ⡲ך㣐㢌ֽו䖤ךכ㢳ַ ֿד䧭➣דֹתׅ ֿֿח㟌ָ֮ https://github.com/brn/mocha