microsoft / microsoft/TypeScript
No related error spans return for type assignment mismatch
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Domain: Related Error Spans
Experience Enhancement
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Description
TypeScript Version: 3.1.0-dev.20180802
Search Terms:
- relatedInformation
- related diagnostics
Code
For the ts:
let b: number = 1
b = ''
Expected behavior:
relatedInformation is returned on the assignment of b = '' (#25030)
Actual behavior:
No relatedInformation
Playground Link:
Related Issues:
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 by reproducing the issue with the TypeScript snippet let b: number = 1; b = '' and inspect how the assignment diagnostic populates relatedInformation. Use the reported TypeScript version and compare the returned diagnostics with the expected behavior from #25030. Done means the assignment mismatch returns the related error spans described in the issue.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100