threads 🚀🚀🚀

src/thread/thread.ts

@@ -0,0 +1,46 @@
+import { rewriteJs } from "../shared/rewriters/js";
+
+
+
+// @ts-ignore
+onconnect = (e) => {
+  const port = e.ports[0];
+
+
+  console.log("thread: connected to port", port)
+  port.postMessage("ready");
+
+  let syncToken = 0;
+  port.onmessage = ({ data }) => {
+    console.log("thread: received message", data)
+    const [task, ...args] = data;
+    let token = syncToken++;
+
+    try {
+      let res = tasks[task](...args);
+      console.log("thread: task", task, "completed with token", token)
+      port.postMessage({
+        token,
+        result: res
+      })
+    } catch (e) {
+      port.postMessage({
+        token,
+        error: e.message
+      })
+    }
+
+
+    port.postMessage("idle");
+  }
+}
+
+
+const tasks = {
+  "rewriteJs": taskRewriteJs,
+}
+
+
+function taskRewriteJs(js: ArrayBuffer, origin: string): string {
+  return rewriteJs(js, new URL(origin));
+}