From 84dc6757327ea4dd94e1db7a1d23df1245a650dc Mon Sep 17 00:00:00 2001
From: Guy Bedford <gbedford@cloudflare.com>
Date: Thu, 10 Jul 2025 16:55:15 -0700
Subject: [PATCH] fix: namespaceInstance ModuleNamespace IDL refactoring

---
 document/js-api/index.bs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/document/js-api/index.bs b/document/js-api/index.bs
index 316d22415..6eb35a2a0 100644
--- a/document/js-api/index.bs
+++ b/document/js-api/index.bs
@@ -321,7 +321,7 @@ namespace WebAssembly {
     Promise&lt;Instance> instantiate(
         Module moduleObject, optional object importObject);
 
-    Instance namespaceInstance(ModuleNamespace moduleNamespace);
+    Instance namespaceInstance(object moduleNamespace);
 };
 </pre>
 
@@ -543,7 +543,7 @@ Note: A follow-on streaming API is documented in the <a href="https://webassembl
 
 <div algorithm>
     The <dfn method for="WebAssembly">namespaceInstance(|namespace|)</dfn> method, when invoked, performs the following steps:
-    1. Assert: |namespace| is a [=Module Namespace exotic object=].
+    1. If |namespace| is not a [=Module Namespace exotic object=] with a \[[Module]] internal slot, [=throw=] a {{TypeError}} exception.
     1. If |namespace|.\[[Module]] is not a [=WebAssembly Module Record=], [=throw=] a {{TypeError}} exception.
     1. Let |module| be |namespace|.\[[Module]].
     1. Return |module|.\[[Instance]].