Cannot read properties of undefined (reading 'length')
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Description
To Reproduce
Steps to reproduce the behavior:
- Sorry, the bug suddenly happened and I do not know what triggered it.
VSCodeVim version: 1.24.3
Stack trace
TypeError: Cannot read properties of undefined (reading 'length')
at E.x (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:93:1723)
at E.w (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:93:1361)
at E.s (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:93:509)
at Object.getText (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:92:61998)
at I.updateView (/Users/dhkim/.vscode/extensions/vscodevim.vim-1.24.3/src/mode/modeHandler.ts:1647:44)
at M (/Users/dhkim/.vscode/extensions/vscodevim.vim-1.24.3/extensionBase.ts:54:22)
at process.mh (node:internal/process/task_queues:96:5)
at /Users/dhkim/.vscode/extensions/vscodevim.vim-1.24.3/extensionBase.ts:251:15
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
Start at src/mode/modeHandler.ts:1647, where updateView calls getText, and trace the call path through extensionBase.ts:54 and :251. The report provides no reproduction trigger, so first investigate when the document text can be undefined. Done means the reported TypeError no longer occurs in that path, with the behavior verified against the stack trace scenario.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript, vscode
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100