leanprover / leanprover/vscode-lean4
Popups for huge expressions are shown outside of viewport
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- Dominant language
- TypeScript
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- 313
- Forks
- 104
- Avg merge
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- Merged PRs (30d)
- 1
Description
def N : Nat := Nat.add 37 50
example : N ≠ N := by
simp (config := {decide := false}) only [N, Nat.add]
/- Put cursor on `≠` in infoview -/
sorry
When highlighting a subterm that is multiple pages long, the popup gets shown at the beginning of the subterm, which is outside of the viewport.

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Research direction
Reproduce the issue using the Lean example and the infoview cursor placement described in the report. Inspect the popup positioning entry point in the VS Code extension, then verify that highlighting a multi-page subterm keeps the popup within the visible viewport.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100