microsoft / microsoft/TypeScript

The ability to refactor implicit types to explicit types in typescript

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Description

export type SomethingComplex = ReturnType<typeof GetSomethingComplex>

I like to rely on implicit return types, especially in the beginning when I'm exploring what I'm creating. But when you have implicit models and your idea has become more defined, it might be wise to have your logic follow explicit models rather than implicit models emerging from logic.

So I propose a refactoring tool that allows you to convert implicit types to explicit types.

Contributor guide

Open the contributing guide

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

The issue names no files, tests, or entry points. Start by reviewing existing TypeScript refactoring support and defining which implicit types should be converted, how generated annotations should appear, and what cases must be covered; done means the behavior is specified and verified across representative examples.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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