From e95b6a0c49382856fa5b71bebbe99b909fb9f4f9 Mon Sep 17 00:00:00 2001
From: Richard Gibson <richard.gibson@gmail.com>
Date: Fri, 2 May 2025 12:32:49 -0400
Subject: [PATCH] Normative: Reject SharedArrayBuffer receiver in
 ArrayBuffer.prototype.immutable getter

Fixes #49
---
 spec.emu | 1 +
 1 file changed, 1 insertion(+)

diff --git a/spec.emu b/spec.emu
index 7a76f8d..d2b3cc9 100644
--- a/spec.emu
+++ b/spec.emu
@@ -830,6 +830,7 @@ contributors: Mark S. Miller, Richard Gibson
           <emu-alg>
             1. Let _O_ be the *this* value.
             1. Perform ? RequireInternalSlot(_O_, [[ArrayBufferData]]).
+            1. If IsSharedArrayBuffer(_O_) is *true*, throw a *TypeError* exception.
             1. Return IsImmutableBuffer(_O_).
           </emu-alg>
         </emu-clause>