From 2d589fdf8e114b0a04568ebfeace4d7b4ae767e3 Mon Sep 17 00:00:00 2001
From: Brendan Dahl <brendan.dahl@gmail.com>
Date: Wed, 6 Mar 2024 19:13:55 +0000
Subject: [PATCH 1/2] [JSPI] - Assert that JSPI is supported by the
 environment.

---
 src/library_async.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/library_async.js b/src/library_async.js
index c9bda2cc97c93..fd4fbf5c17cf6 100644
--- a/src/library_async.js
+++ b/src/library_async.js
@@ -40,6 +40,9 @@ addToLibrary({
     instrumentWasmImports(imports) {
 #if ASYNCIFY_DEBUG
       dbg('asyncify instrumenting imports');
+#endif
+#if ASSERTIONS && ASYNCIFY == 2
+      assert('Suspender' in WebAssembly, 'JSPI not support by current environment. Perhaps it needs to be enabled via flags?');
 #endif
       var importPattern = {{{ new RegExp(`^(${ASYNCIFY_IMPORTS_EXCEPT_JS_LIBS.map(x => x.split('.')[1]).join('|').replace(/\*/g, '.*')})$`) }}};
 

From eb6f0beee20792a8928610d8ca016d0d53c78088 Mon Sep 17 00:00:00 2001
From: Brendan Dahl <brendan.dahl@gmail.com>
Date: Thu, 7 Mar 2024 10:40:41 -0800
Subject: [PATCH 2/2] Update library_async.js

---
 src/library_async.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/library_async.js b/src/library_async.js
index fd4fbf5c17cf6..8121a4cc8e732 100644
--- a/src/library_async.js
+++ b/src/library_async.js
@@ -42,7 +42,7 @@ addToLibrary({
       dbg('asyncify instrumenting imports');
 #endif
 #if ASSERTIONS && ASYNCIFY == 2
-      assert('Suspender' in WebAssembly, 'JSPI not support by current environment. Perhaps it needs to be enabled via flags?');
+      assert('Suspender' in WebAssembly, 'JSPI not supported by current environment. Perhaps it needs to be enabled via flags?');
 #endif
       var importPattern = {{{ new RegExp(`^(${ASYNCIFY_IMPORTS_EXCEPT_JS_LIBS.map(x => x.split('.')[1]).join('|').replace(/\*/g, '.*')})$`) }}};