sketch.ts

interface CID {
  code: number
  version: number
  multihash: Uint8Array
  bytes: Uint8Array
}

type Future<T> =
  | T
  | Promise<T>

interface Block {
  cid():Future<CID>
  encode():Future<Uint8Array>
}

interface Codec<T> {
  code: number
  name: string
  encode(value:T):Uint8Array
  decode(bytes:Uint8Array):T
}

interface MultiHasher {
  code: number,
  name: string,
  digest(bytes:Uint8Array):Digest
}

type Digest = Uint8Array

interface BlockDecoder {
  encode <T>(value:T, codec:Codec<T>, hasher?:MultiHasher):Block
}

interface BlockDecoder {
  decode <T>(bytes:Uint8Array, codec:Codec<T>, hasher?:MultiHasher):Block
}