reorg: move JS ops implementations to cli/js/ops/, part 2 (#4283)

Following JS ops were moved to separate files in cli/js/ops directory:
- io
- process
- worker_host
- web_worker
- plugins
- timers
- signal
- permissions

1 files changed, 29 insertions, 0 deletions

diff --git a/cli/js/ops/worker_host.ts b/cli/js/ops/worker_host.ts
new file mode 100644
index 000000000..a409d2c77
--- /dev/null
+++ b/cli/js/ops/worker_host.ts
@@ -0,0 +1,29 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+/* eslint-disable @typescript-eslint/no-explicit-any */
+import { sendAsync, sendSync } from "./dispatch_json.ts";
+
+export function createWorker(
+  specifier: string,
+  hasSourceCode: boolean,
+  sourceCode: string,
+  name?: string
+): { id: number } {
+  return sendSync("op_create_worker", {
+    specifier,
+    hasSourceCode,
+    sourceCode,
+    name
+  });
+}
+
+export function hostTerminateWorker(id: number): void {
+  sendSync("op_host_terminate_worker", { id });
+}
+
+export function hostPostMessage(id: number, data: Uint8Array): void {
+  sendSync("op_host_post_message", { id }, data);
+}
+
+export async function hostGetMessage(id: number): Promise<any> {
+  return await sendAsync("op_host_get_message", { id });
+}