こういう感じでTypeScriptのPickみたいな型操作を使えるのはちょっと面白いかも。 https://swiftwasm.org/JavaScriptKit/PlayBridgeJS/?code=H4sIAAAAAAAAE13PPQ6CQBAF4KtMptKEyhJ%2FGjwAIZTb4DLghHWWsCNi1LtbuEak%2Fd685M0Dw40bxRQxwVoDpkhT7wcFvfcEWSVjFTIvSpPCHnK23c4IAMSoIKlpYGnjzeaYfOInGAw6%2BI4Ksmrwpw07t7QTtSx5pec5XvxIpZ%2BLY1mIdT7Qt3gwEsc3V7HKXqAljctW6%2FT%2FnS2%2B3tFJ%2FIv%2BAAAA&enc=gzip-b64

3:22 PM

export type CanvasContext = Pick< CanvasRenderingContext2D, | "strokeRect" | "fillRect" | "beginPath" | "moveTo" | "lineTo" | "closePath" >

3:23 PM

あとJSDocからSwiftのドックコメントへの変換もついてるのが地味に便利