From 535288dc558616c4668a8522965a7833c2c3c356 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Fri, 26 Sep 2025 11:01:34 +0200
Subject: [PATCH] Fix Valgrind warning

Initialize the JSPropertyDescriptor before calling JS_GetOwnProperty
because the latter doesn't fill in the former if the property isn't
found.

Fixes: https://github.com/quickjs-ng/quickjs/issues/1160
---
 quickjs.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/quickjs.c b/quickjs.c
index bd87b9625..f63b7df66 100644
--- a/quickjs.c
+++ b/quickjs.c
@@ -41499,6 +41499,11 @@ static JSValue js_iterator_concat_next(JSContext *ctx, JSValueConst this_val,
     // not done, construct { done: false, value: xxx } object
     // copy .value verbatim from source object, spec doesn't
     // allow dereferencing getters here
+    d = (JSPropertyDescriptor){
+        .value = JS_UNDEFINED,
+        .getter = JS_UNDEFINED,
+        .setter = JS_UNDEFINED,
+    };
     ret = JS_GetOwnProperty(ctx, &d, item, JS_ATOM_value);
     JS_FreeValue(ctx, item);
     if (ret < 0)