Use Transferable type

[MattiasBuelens]

TypeScript comes with a built-in type definition for transferable objects. Let's use it! 🙂

This changes the following types in Comlink's public API (dist/umd/comlink.d.ts):

 export interface TransferHandler {
     canHandle(obj: any): boolean;
-    serialize(obj: any): [any, any[]];
+    serialize(obj: any): [any, Transferable[]];
     deserialize(obj: any): any;
 }
-export declare function transfer(obj: any, transfers: any[]): any;
+export declare function transfer(obj: any, transfers: Transferable[]): any;

[surma]

Brilliant. Thank you :)

[MattiasBuelens]

I'm not entirely sure what to do with the NodeEndpoint interface:

export interface NodeEndpoint {
  postMessage(message: any, transfer?: any[]): void;
}

We could change it to transfer?: Transferable[] as well, but then the endpoint would also have to accept ImageBitmap objects, which don't exist on Node. I guess we could define our own type instead?

export type NodeTransferable = ArrayBuffer | MessagePort;

Thoughts?

[surma]

I'll leave any in Node for now. Needs more field testing anyways :)

[MattiasBuelens]

Sounds good to me!

Thanks for the (insanely) fast merge! 😁