microsoft / microsoft/TypeScript
Give better errors comparing massive singleton union types
Open
Nobody has claimed this yet.
Domain: Error Messages
Needs Proposal
Suggestion
- Dominant language
- Go
- Stars
- 111k
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- Avg merge
- 2d 4h
- Merged PRs (30d)
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Description

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
The issue body contains only a screenshot and does not identify files, tests, or an entry point. Begin by interpreting the example in the attached image and locating the TypeScript compiler code that compares large singleton union types. Done should mean the compiler produces more useful diagnostics for that comparison, with tests covering the reported case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100