Bug 1966355 - Part 18: Add structured clone support. r=spidermonkey-reviewers,sfink

Spec PR: <whatwg/html#11033>

Differential Revision: https://phabricator.services.mozilla.com/D249411

UltraBlame original commit: da0c4055945e2adeb6d7e5d24bc34e0f114364a7

Author: marco-c

js/src/jit-test/tests/structured-clone/immutable-array-buffers-transferable.js

@@ -0,0 +1,224 @@
+/
+/
+|
+jit
+-
+test
+|
+-
+-
+enable
+-
+arraybuffer
+-
+immutable
+;
+skip
+-
+if
+:
+!
+ArrayBuffer
+.
+prototype
+.
+transferToImmutable
+load
+(
+libdir
++
+"
+asserts
+.
+js
+"
+)
+;
+const
+scopes
+=
+[
+"
+SameProcess
+"
+"
+DifferentProcess
+"
+"
+DifferentProcessForIndexedDB
+"
+]
+;
+function
+testArrayBufferTransferable
+(
+scope
+)
+{
+var
+length
+=
+4
+;
+var
+byteLength
+=
+length
+*
+Uint8Array
+.
+BYTES_PER_ELEMENT
+;
+var
+ab
+=
+new
+ArrayBuffer
+(
+byteLength
+)
+;
+assertEq
+(
+ab
+.
+immutable
+false
+)
+;
+assertEq
+(
+ab
+.
+byteLength
+byteLength
+)
+;
+var
+ta
+=
+new
+Uint8Array
+(
+ab
+)
+;
+ta
+.
+set
+(
+[
+33
+44
+55
+66
+]
+)
+;
+var
+iab
+=
+ab
+.
+transferToImmutable
+(
+)
+;
+var
+ita
+=
+new
+Uint8Array
+(
+iab
+)
+;
+assertEq
+(
+ab
+.
+detached
+true
+)
+;
+assertEq
+(
+iab
+.
+detached
+false
+)
+;
+assertEq
+(
+ita
+.
+toString
+(
+)
+"
+33
+44
+55
+66
+"
+)
+;
+assertThrowsInstanceOf
+(
+(
+)
+=
+>
+serialize
+(
+iab
+[
+iab
+]
+{
+scope
+}
+)
+TypeError
+)
+;
+assertEq
+(
+ab
+.
+detached
+true
+)
+;
+assertEq
+(
+iab
+.
+detached
+false
+)
+;
+assertEq
+(
+ita
+.
+toString
+(
+)
+"
+33
+44
+55
+66
+"
+)
+;
+}
+scopes
+.
+forEach
+(
+testArrayBufferTransferable
+)
+;