microsoft / microsoft/TypeScript
Can you provide a configuration in tsconfig that prohibits throwing not Error subtypes
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Suggestion
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Description
🔍 Search Terms
Error, throw
✅ Viability Checklist
- This wouldn't be a breaking change in existing TypeScript/JavaScript code
- This wouldn't change the runtime behavior of existing JavaScript code
- This could be implemented without emitting different JS based on the types of the expressions
- This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, new syntax sugar for JS, etc.)
- This isn't a request to add a new utility type: https://github.com/microsoft/TypeScript/wiki/No-New-Utility-Types
- This feature would agree with the rest of our Design Goals: https://github.com/Microsoft/TypeScript/wiki/TypeScript-Design-Goals
⭐ Suggestion
The writing method of throw 3/throw "aaa" can be prohibited in the TS configuration, requiring throw Error and its subtypes to be mandatory
📃 Motivating Example
like title
💻 Use Cases
- What do you want to use this for?
- What shortcomings exist with current approaches?
- What workarounds are you using in the meantime?
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 names no files, tests, or entry points. Start by clarifying the intended type-checking scope and configuration behavior, including how Error subtypes and non-Error expressions should be handled. Done means the requested configuration is specified well enough to implement and verify.
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
- 25/100