IInteractiveWindow.WriteErrorLine can throw NRE when VS is closing

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
38/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
csharp
Domain
desktop-dev, devtools

Research direction

Start with the InteractiveWindow.UIThread methods, especially IInteractiveWindow.WriteErrorLine, and read the linked RTVS issue for the closing-Visual-Studio scenario. Verify how Dispatcher.HasShutdownStarted is available there and reproduce or review the shutdown path; done means WriteErrorLine no longer throws a NullReferenceException while Visual Studio is closing.

Written by the indexing model from the issue text.

Description

Bug

https://github.com/Microsoft/RTVS/issues/2637
It needs to check Dispatcher.HasShutdownStarted inside InteractiveWindow.UIThread methods

Dominant language
C#
Stars
78
Forks
44
No merged PRs in 30d

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  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.

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