microsoft / microsoft/TypeScript

Expand when `isNewIdentifierLocation` is set in the syntax server

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Description

In https://github.com/microsoft/TypeScript/issues/37713, we might not have a full picture of the world, so it might overly restrictive to only suggest identifiers in the current file. We should consider being more permissive so that editors don't aggressively auto-complete on identifiers in these contexts.


Aside: if we do this, we should make sure that the work done in https://github.com/microsoft/TypeScript/issues/38836 doesn't cause conflicts.

For example, let's say you have an empty file like

thing/**/

and completions get triggered at /**/. A user should not get completions for thing at that point.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the linked issues 37713 and 38836 to understand when isNewIdentifierLocation is set and how the existing completion restrictions work. Reproduce the empty-file example with thing/**/, then define the expanded completion cases while ensuring thing itself is not suggested.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
developer-experience, devtools
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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