begin messageport, transferable objects, impl

Accept transfer argument for StructuredCloneData::write

Allow structured clone reads to return a boolean

Add Transferable trait

Add basic skeletons to MessagePort

Implement transfer and transfer-receiving steps on MessagePort

Use transfer and transfer_receive in StructuredClone callbacks

Implement MessageChannel

Freeze the array object for the MessageEvent ports attribute

Implement transfer argument on window.postMessage

Use ReentrantMutex instead for MessagePortInternal

Accept origin as a parameter in dispatch_jsval

Fix BorrowMut crash with pending_port_message

Detach port on closure and check for detached during transfer

Enable webmessaging tests

fix webidl

fix

1 files changed, 4 insertions, 2 deletions

diff --git a/components/script/dom/webidls/MessageEvent.webidl b/components/script/dom/webidls/MessageEvent.webidl
index e5b91a043f3..63dd9019cc9 100644
--- a/components/script/dom/webidls/MessageEvent.webidl
+++ b/components/script/dom/webidls/MessageEvent.webidl
@@ -12,7 +12,7 @@ interface MessageEvent : Event {
   // FIXME(#22617): WindowProxy is not exposed in Worker globals
   readonly attribute object? source;
   //readonly attribute (WindowProxy or MessagePort)? source;
-  //readonly attribute MessagePort[]? ports;
+  readonly attribute /*FrozenArray<MessagePort>*/any ports;
 };
 
 dictionary MessageEventInit : EventInit {
@@ -22,5 +22,7 @@ dictionary MessageEventInit : EventInit {
   //DOMString channel;
   Window? source;
   //(WindowProxy or MessagePort)? source;
-  //sequence<MessagePort> ports;
+  sequence<MessagePort> ports;
 };
+
+typedef (/*WindowProxy or */MessagePort or ServiceWorker) MessageEventSource;