[feature request] destructured type assignment

Search Terms

typescript destructuring types

Suggestion

We can currently do:

type Lane = import('../Lane').Lane

But it would be nifty to be able to do:

type {Lane} = import('../Lane')

And taking it further, grab more things at once:

type {Lane, LaneColor, LaneSize} = import('../Lane')

instead of having to write

type Lane = import('../Lane').Lane
type LaneColor = import('../Lane').LaneColor
type LaneSize = import('../Lane').LaneSize

Use Cases

convenience

Examples

see above

Checklist

My suggestion meets these guidelines:

• 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, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

まず既存の import type 構文とこの issue の例を確認し、次に、分割代入された型の代入に関する制約について TypeScript の設計ディスカッションを確認してください。完了条件は、JavaScript のランタイム出力を変更せずに、単一および複数のインポートされた型名の両方をサポートし、示されている形式をカバーすることです。