Re: [whatwg/webidl] Introduce a "detachable" algorithm for BufferSource (PR #1419)

@inexorabletash commented on this pull request.



> @@ -9054,6 +9054,21 @@ a reference to the same object that the IDL value represents.
     1.  Return [$IsDetachedBuffer$](|jsArrayBuffer|).
 </div>
 
+<div algorithm>
+    A [=buffer source type=] instance |bufferSource| is
+    <dfn for="BufferSource" export>detachable</dfn> if the following steps return true:
+
+    1.  Let |jsArrayBuffer| be the result of [=converted to a JavaScript value|converting=]
+        |bufferSource| to a JavaScript value.
+    1.  If |jsArrayBuffer| has a \[[ViewedArrayBuffer]] internal slot, then set |jsArrayBuffer| to
+        |jsArrayBuffer|.\[[ViewedArrayBuffer]].
+    1.  If [$IsSharedArrayBuffer$](|jsArrayBuffer|) is true, then return false.
+    1.  If [$IsDetachedBuffer$](|jsArrayBuffer|) is true, then return false.

Okay - updated algorithm name to "transferable". 

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