refactor(ops): remove variadic buffers (#9944)

1 files changed, 4 insertions, 3 deletions

diff --git a/runtime/ops/web_worker.rs b/runtime/ops/web_worker.rs
index 17561882e..7918b97ea 100644
--- a/runtime/ops/web_worker.rs
+++ b/runtime/ops/web_worker.rs
@@ -2,6 +2,7 @@
 
 use crate::web_worker::WebWorkerHandle;
 use crate::web_worker::WorkerEvent;
+use deno_core::error::null_opbuf;
 use deno_core::futures::channel::mpsc;
 use deno_core::serde_json::{json, Value};
 
@@ -15,9 +16,9 @@ pub fn init(
   super::reg_json_sync(
     rt,
     "op_worker_post_message",
-    move |_state, _args: Value, bufs| {
-      assert_eq!(bufs.len(), 1, "Invalid number of arguments");
-      let msg_buf: Box<[u8]> = (*bufs[0]).into();
+    move |_state, _args: Value, buf| {
+      let buf = buf.ok_or_else(null_opbuf)?;
+      let msg_buf: Box<[u8]> = (*buf).into();
       sender_
         .clone()
         .try_send(WorkerEvent::Message(msg_buf))