microsoft / microsoft/TypeScript
importModuleSpecifier "shortest" does not choose shortest result among multiple matching paths aliases
Personne n'a encore pris cette issue.
- Langage dominant
- Go
- Étoiles
- 111k
- Forks
- 14.3k
- Merge moyen
- 2 j 4 h
- PR mergées (30 j)
- 132
Description
### 🔎 Search Terms
importModuleSpecifier shortest paths multiple aliases, auto import paths overlapping alias, tryGetModuleNameFromPaths shortest
### 🕗 Version & Regression Information
- This is the behavior in every version I tried, and I reviewed the FAQ for entries about auto-import and paths
### ⏯ Playground Link
N/A — this is a language service auto-import behavior that requires a multi-file project with jsconfig/tsconfig `paths`
### 💻 Code
```json
// jsconfig.json
{
"compilerOptions": {
"paths": {
"@@/*": ["./*"],
"@/*": ["./src/*"]
}
}
}
```
```js
// src/services/foo.js
export function foo() {}
// src/index.js — trigger auto-import for `foo`
```
### 🙁 Actual behavior
Auto-import suggests `@@/src/services/foo`. The `importModuleSpecifier: "shortest"` preference does not influence the choice between two matching `paths` aliases. `tryGetModuleNameFromPaths` returns on the first matching key in iteration order without comparing alternatives.
### 🙂 Expected behavior
With `importModuleSpecifier` set to `"shortest"`, auto-import should compare all matching aliases and suggest `@/services/foo` since it is shorter than `@@/src/services/foo`.
### Additional information about the issue
Workaround is to reorder `paths` entries so the more specific alias appears first, relying on object key insertion order. This is fragile and undocumented.
Guide de contribution
Ouvrir le guide de contribution
Par où commencer
- Lisez l'issue en entier, puis le guide de contribution du projet.
- Signalez en commentaire que vous la prenez — cela évite que deux personnes fassent le même travail.
- Forkez le dépôt et travaillez sur une branche.
- Ouvrez une pull request qui référence le numéro de l'issue.
Piste de recherche
Start at the mentioned tryGetModuleNameFromPaths entry point and reproduce the multi-file auto-import case using the jsconfig/tsconfig paths configuration. Trace how matching aliases are selected, then verify that the shortest preference produces the shorter alias rather than depending on object key order.
Rédigé par le modèle d'indexation à partir du texte de l'issue.
Évaluation
- Stack technique
- javascript, typescript
- Domaine
- developer-experience, tooling
- Type d'issue
- Bug
- Difficulté
- 4/5
- Temps estimé
- 3-5 jours
- Activité
- Calme
- Clarté
- Clairement spécifiée
- Accessibilité débutants
- 52/100