From 57a9ffc9d598838e136f187d7ab158e9b5c6e311 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Thu, 3 Sep 2026 20:43:44 +0200
Subject: feat(engine): improve object & resource error messages in opengl
 rendering backend

---
 engine/src/rendering/backend/opengl.rs | 52 ++++++++++++++++++----------------
 engine/src/rendering/object.rs         | 14 +++++++++
 2 files changed, 41 insertions(+), 25 deletions(-)

diff --git a/engine/src/rendering/backend/opengl.rs b/engine/src/rendering/backend/opengl.rs
index cd53bc5..32afd8f 100644
--- a/engine/src/rendering/backend/opengl.rs
+++ b/engine/src/rendering/backend/opengl.rs
@@ -223,6 +223,7 @@ impl BackendResourceStore
             cold_path();
             tracing::error!(
                 ?object_id,
+                %object_kind,
                 "Object does not exist in the rendering object store"
             );
             return None;
@@ -232,9 +233,9 @@ impl BackendResourceStore
             cold_path();
             tracing::error!(
                 ?object_id,
-                expected_object_kind = ?object_kind,
-                found_object_kind = ?object.kind(),
-                "Unexpected object kind"
+                expected_object_kind = %object_kind,
+                found_object_kind = %object.kind(),
+                "Unexpected object kind of object in object store"
             );
             return None;
         }
@@ -242,20 +243,17 @@ impl BackendResourceStore
         let resource_id = BackendResourceId(object.as_raw());
 
         let Some(resource) = self.inner.get(resource_id) else {
-            cold_path();
-            tracing::error!(?object_id, ?resource_id, "Backend resource does not exist");
-            return None;
-        };
-
-        if resource.object_kind() != object_kind {
             cold_path();
             tracing::error!(
                 ?object_id,
+                %object_kind,
                 ?resource_id,
-                "Backend resource has wrong associated object kind"
+                "Backend resource does not exist"
             );
             return None;
-        }
+        };
+
+        debug_assert_eq!(resource.object_kind(), object_kind);
 
         Some(resource)
     }
@@ -271,6 +269,7 @@ impl BackendResourceStore
             cold_path();
             tracing::error!(
                 ?object_id,
+                %object_kind,
                 "Object does not exist in the rendering object store"
             );
             return None;
@@ -280,9 +279,9 @@ impl BackendResourceStore
             cold_path();
             tracing::error!(
                 ?object_id,
-                expected_object_kind = ?object_kind,
-                found_object_kind = ?object.kind(),
-                "Unexpected object kind"
+                expected_object_kind = %object_kind,
+                found_object_kind = %object.kind(),
+                "Unexpected object kind of object in object store"
             );
             return None;
         }
@@ -290,20 +289,17 @@ impl BackendResourceStore
         let resource_id = BackendResourceId(object.as_raw());
 
         let Some(resource) = self.inner.get_mut(resource_id) else {
-            cold_path();
-            tracing::error!(?object_id, ?resource_id, "Backend resource does not exist");
-            return None;
-        };
-
-        if resource.object_kind() != object_kind {
             cold_path();
             tracing::error!(
                 ?object_id,
+                %object_kind,
                 ?resource_id,
-                "Backend resource has wrong associated object kind"
+                "Backend resource does not exist"
             );
             return None;
-        }
+        };
+
+        debug_assert_eq!(resource.object_kind(), object_kind);
 
         Some(resource)
     }
@@ -321,8 +317,8 @@ impl BackendResourceStore
                 cold_path();
                 tracing::error!(
                     ?object_id,
-                    expected_object_kind = ?object_kind,
-                    found_object_kind = ?object.kind(),
+                    expected_object_kind = %object_kind,
+                    found_object_kind = %object.kind(),
                     "Unexpected object kind"
                 );
                 return;
@@ -332,6 +328,7 @@ impl BackendResourceStore
         let Some(object) = object_store.remove(&object_id).flatten() else {
             tracing::error!(
                 ?object_id,
+                %object_kind,
                 "Object does not exist in the rendering object store"
             );
             return;
@@ -341,7 +338,12 @@ impl BackendResourceStore
 
         let Some(resource) = self.inner.remove(resource_id) else {
             cold_path();
-            tracing::error!(?object_id, ?resource_id, "Backend resource does not exist");
+            tracing::error!(
+                ?object_id,
+                %object_kind,
+                ?resource_id,
+                "Backend resource does not exist"
+            );
             return;
         };
 
diff --git a/engine/src/rendering/object.rs b/engine/src/rendering/object.rs
index c26b945..61e7ed5 100644
--- a/engine/src/rendering/object.rs
+++ b/engine/src/rendering/object.rs
@@ -1,4 +1,5 @@
 use std::collections::HashMap;
+use std::fmt::Display;
 use std::sync::atomic::{AtomicU64, Ordering};
 
 use crate::asset::Id as AssetId;
@@ -121,3 +122,16 @@ pub enum Kind
     Mesh,
     Framebuffer,
 }
+
+impl Display for Kind
+{
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
+    {
+        formatter.write_str(match self {
+            Self::Texture => "texture",
+            Self::ShaderProgram => "shader program",
+            Self::Mesh => "mesh",
+            Self::Framebuffer => "framebuffer",
+        })
+    }
+}
-- 
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