Randomly blocking UI thread when intellisense suggestion popup try to appear
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- Dominant language
- TypeScript
- Stars
- 15.2k
- Forks
- 1.5k
- Avg merge
- 3d 18h
- Merged PRs (30d)
- 6
Description
Describe the bug
Insert mode, when intellisense try to make suggestion model it randomly blocks UI thread, so input takes several hundreds of lag to appear or input order being confused.
To Reproduce
Steps to reproduce the behavior:
- change to insert mode
- try to make some suggestion-able text input, for example
const a = {
dummy: (test: string //try to type `stri...`
}
Issue occurs randomly, so no concrete repro steps.
Expected behavior
Screenshots
WITHOUT vim plugin
WITH vim plugin
See green highlighted blocking keyeventhandler only appears with vim plugin
Environment (please complete the following information):
- Extension (VsCodeVim) version: latest
- VSCode version: latest
- OS: Windows 10
Additional context
Add any other context about the problem here.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source files, tests, or entry points are named in the report. Reproduce in insert mode while typing suggestion-triggering TypeScript text on Windows 10, comparing behavior with and without the Vim plugin. Done means the suggestion popup no longer blocks the UI thread or causes input lag and ordering problems.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript, vscode
- Domain
- developer-experience, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100