Method getHookForWritableStream

src/core.ts:875–907

(stream: WritableStream, parent: object | undefined,
                                  dupStubs: boolean = true)

  // Get the StubHook representing the given WritableStream found inside this payload.
  public getHookForWritableStream(stream: WritableStream, parent: object | undefined,
                                  dupStubs: boolean = true): StubHook {
    if (this.source === "params") {
      // For params, we always create a new hook. WritableStreams don't have a dup() method,
      // and it wouldn't really make sense anyway since we're locking the stream by calling
      // getWriter().
      return streamImpl.createWritableStreamHook(stream);
    } else if (this.source === "return") {
      // Similar logic to getHookForRpcTarget().
      let hook = this.rpcTargets?.get(stream);
      if (hook) {
        if (dupStubs) {
          return hook.dup();
        } else {
          this.rpcTargets?.delete(stream);
          return hook;
        }
      } else {
        hook = streamImpl.createWritableStreamHook(stream);
        if (dupStubs) {
          if (!this.rpcTargets) {
            this.rpcTargets = new Map;
          }
          this.rpcTargets.set(stream, hook);
          return hook.dup();
        } else {
          return hook;
        }
      }
    } else {
      throw new Error("owned payload shouldn't contain raw WritableStreams");
    }
  }

  // Get the StubHook representing the given ReadableStream found inside this payload.
  public getHookForReadableStream(stream: ReadableStream, parent: object | undefined,