uiwjs / uiwjs/react-codemirror
out of sync view state / uncatchable errors
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- TypeScript
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Description
in some cases, the view state seems to be out of sync. I am updating Decorations in an animation frame, and it can happen that the view dispatches from an old state, which can create errors. these errors also don't seem to be catchable with all I've tried.
I've made a minimal repro here:
https://codesandbox.io/s/react-codemirror-range-error-forked-pcpwtl?file=/src/App.js
I also wrote a post in the codemirror forum: https://discuss.codemirror.net/t/uncatchable-out-of-range-errors-when-document-changes/4864
This was all some time ago and I already found a workaround but today I ran into a similar problem again.
Not sure what to do about this..
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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
Start by reproducing the problem in the linked CodeSandbox, focusing on src/App.js and the animation-frame updates to Decorations. Read the linked CodeMirror forum discussion for the reported out-of-sync view state and uncatchable errors. Done means the minimal reproduction no longer produces the reported errors or the failure is made catchable.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- react, typescript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100