From 428617f87abf2d9cf92723f3a2287b575d7c6180 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Thu, 26 Jun 2025 18:43:01 +0300
Subject: [PATCH] gstreamer: Add debug assertions to ensure `&mut StructureRef`
 is only created from mutable structures

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1743>
---
 gstreamer/src/structure.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gstreamer/src/structure.rs b/gstreamer/src/structure.rs
index cf657bd1c..7602bb08a 100644
--- a/gstreamer/src/structure.rs
+++ b/gstreamer/src/structure.rs
@@ -483,6 +483,8 @@ impl StructureRef {
     #[inline]
     pub unsafe fn from_glib_borrow_mut<'a>(ptr: *mut ffi::GstStructure) -> &'a mut StructureRef {
         debug_assert!(!ptr.is_null());
+        #[cfg(feature = "v1_28")]
+        debug_assert_ne!(ffi::gst_structure_is_writable(ptr), glib::ffi::GFALSE,);
 
         &mut *(ptr as *mut StructureRef)
     }