microsoft / microsoft/TypeScript
Better ownership lint to eliminate ownership chaos for generated code
Nessuno ha ancora preso questa issue.
- Lingua principale
- Go
- Stelle
- 111k
- Fork
- 14.3k
- Merge medio
- 2g 4h
- PR unite (30g)
- 132
Descrizione
### 🔍 Search Terms
- proposal-explicit-resource-management
- ownership
- lifetime
### ✅ Viability Checklist
- [x] This wouldn't be a breaking change in existing TypeScript/JavaScript code
- [x] This wouldn't change the runtime behavior of existing JavaScript code
- [x] This could be implemented without emitting different JS based on the types of the expressions
- [x] This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, new syntax sugar for JS, etc.)
- [x] This isn't a request to add a new utility type: https://github.com/microsoft/TypeScript/wiki/No-New-Utility-Types
- [x] This feature would agree with the rest of our Design Goals: https://github.com/Microsoft/TypeScript/wiki/TypeScript-Design-Goals
### ⭐ Suggestion
Better ownership lint to kill ownership chaos.
Maybe rust lifetime?
### 📃 Motivating Example
See
https://github.com/denoland/deno/issues/34953
Typescript should lint below code will crash due to ownership
```js
Deno.serve({}, async (_req) => {
using file = await Deno.open(new URL(import.meta.url).pathname);
return new Response(file.readable);
});
```
https://github.com/denoland/deno/issues/34953#issuecomment-4636526241
Some think
> `file.readable` carries ownership of the file
https://github.com/denoland/deno/issues/34953#issuecomment-4636588109
Some think `file.readable` does not carries ownership of the file
```js
> file.readable[Symbol.dispose]
undefined
```
### 💻 Use Cases
1. What do you want to use this for?
Better ownership type
2. What shortcomings exist with current approaches?
TBD
3. What workarounds are you using in the meantime?
No way.
## related
https://github.com/denoland/deno/issues/34931
Simple code leads to server crash due to ownership
Genered by AI.
Simplified for reproduce.
```ts
Deno.serve({}, async (_req) => {
using file = await Deno.open(new URL(import.meta.url).pathname);
return new Response(file.readable);
});
```
---
https://github.com/denoland/deno/issues/34953
How to easy stream file within deno server?
---
https://github.com/tc39/proposal-explicit-resource-management/issues/274
How does proposal-explicit-resource-management suggest how to easy extend stream file lifetime within server?
---
https://github.com/microsoft/TypeScript/issues/63540
Better ownership lint to kill ownership chaos
Guida per i contributori
Apri la guida per i contributori
Come iniziare
- Leggi tutta la issue e poi la guida ai contributi del progetto.
- Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
- Fai un fork del repository e lavora su un branch.
- Apri una pull request che faccia riferimento al numero della issue.
Direzione di ricerca
Inizia con gli esempi di ownership in questa issue e confronta le issue di Deno collegate con la issue 274 di TC39 proposal-explicit-resource-management. La richiesta non identifica file TypeScript, test o una lint rule concreta, e le sezioni sulle sue carenze e sul workaround sono ancora TBD. Una proposta completa dovrebbe definire il modello di ownership, la diagnostica e il comportamento previsto prima che possa iniziare l’implementazione.
Scritto dal modello di indicizzazione a partire dal testo della issue.
Valutazione
- Stack tecnologico
- javascript, typescript
- Ambito
- compilers
- Tipo di issue
- Funzionalità
- Difficoltà
- 5/5
- Tempo stimato
- Più di una settimana
- Stato di attività
- Tranquilla
- Chiarezza
- Da chiarire
- Idoneità per principianti
- 18/100