VSCodeVim / VSCodeVim/Vim

Failed to handle key=H. Cannot read property 'active' of undefined

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Dominant language
TypeScript
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Description

To Reproduce
Steps to reproduce the behavior:

  1. Go to '...'
  2. Click on '....'
  3. Scroll down to '....'
  4. See error

VSCodeVim version: 1.20.0

Stack trace
TypeError: Failed to handle key=H. Cannot read property 'active' of undefined
    at Be.execActionWithCount (/Users/jailangoju/.vscode/extensions/vscodevim.vim-1.20.0/src/actions/motion.ts:90:59)
    at I.executeMovement (/Users/jailangoju/.vscode/extensions/vscodevim.vim-1.20.0/src/mode/modeHandler.ts:952:37)
    at runMicrotasks (<anonymous>)
    at process.recordedState (internal/process/task_queues.js:97:5)
    at I.actionToRecord [as runAction] (/Users/jailangoju/.vscode/extensions/vscodevim.vim-1.20.0/src/mode/modeHandler.ts:718:7)
    at I.handledAsAction [as handleKeyAsAnAction] (/Users/jailangoju/.vscode/extensions/vscodevim.vim-1.20.0/src/mode/modeHandler.ts:651:43)
    at I.text [as handleKeyEvent] (/Users/jailangoju/.vscode/extensions/vscodevim.vim-1.20.0/src/mode/modeHandler.ts:471:11)
    at Object.promise (/Users/jailangoju/.vscode/extensions/vscodevim.vim-1.20.0/extensionBase.ts:373:73)
    at Object.runTasks (/Users/jailangoju/.vscode/extensions/vscodevim.vim-1.20.0/src/taskQueue.ts:36:26)

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First steps

  1. Read the whole issue, then the project's contributing guide.
  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.

Research direction

Start in src/actions/motion.ts at execActionWithCount, then trace key H through src/mode/modeHandler.ts at executeMovement. Reproduce the TypeError with VSCodeVim 1.20.0 and identify why the accessed value is undefined; done means handling H without the reported 'active' error.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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