microsoft / microsoft/TypeScript
Suggestion: allow instantiation of type aliases
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Needs Proposal
Suggestion
- Dominant language
- Go
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Description
Currently a type aliased class cannot be instantiated. Also there is no way to alias a type with type parameters. Please consider making type aliases as capable as the types that they represent, basically capturing the type expression under a different name.
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
No files, tests, or entry points are named. Start by reading the linked issues and tracing the TypeScript typechecker’s handling of type aliases; done means aliases can be instantiated and can represent types with type parameters as described in the request.
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
- Mostly clear
- Newbie friendliness
- 25/100