worker: remove undocumented .onclose property

Remove setting of a 'close' event handler on MessagePort through the use of an `.onclose` property. We don't use this convention anywhere else in our codebase for 'close' events, this feature is undocumented, and we don't test it. PR-URL: #25904 Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: Yuta Hiroto <[email protected]> Reviewed-By: Ujjwal Sharma <[email protected]>
nodejs · Feb 6, 2019 · 52d4b7a · 52d4b7a
1 parent 0b302e4
commit 52d4b7a
Showing 1 changed file with 0 additions and 6 deletions.
diff --git a/lib/internal/worker/io.js b/lib/internal/worker/io.js
@@ -102,12 +102,6 @@ Object.defineProperty(MessagePort.prototype, onInitSymbol, {
 
 // This is called after the underlying `uv_async_t` has been closed.
 function onclose() {
-  if (typeof this.onclose === 'function') {
-    // Not part of the Web standard yet, but there aren't many reasonable
-    // alternatives in a non-EventEmitter usage setting.
-    // Refs: https://github.com/whatwg/html/issues/1766
-    this.onclose();
-  }
   this.emit('close');
 }