Microsoft/TypeScript

No completions for type parameters in generic function return type

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#59,419 opened on Jul 25, 2024

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Description

I feel like we must have an issue for this one, but I can't find it.

function invertKeysAndValues<K, V>(map: Map<K, V>): Map</**/

Request completions at /**/

Expected: The type parameter V is provided as a valid completion entry. Actual: VBArray is the first provided completion entry. This means that a commit character like , after typing in V will commit VBArray as a type argument.

Contributor guide

Research direction
Investigate the completion handler for type arguments in return types; trace how commit characters are processed in the language service to understand why 'VBArray' is prioritized over 'V'.
Tech stack
typescript
Domain
developer experiencecompilers
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
TypeScriptGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65