Add descriptor write checks

vulkan-rs/src/descriptorpool.rs

@@ -72,7 +72,7 @@ impl DescriptorPoolBuilder {
 pub struct DescriptorPool {
     device: Arc<Device>,
     descriptor_pool: VkDescriptorPool,
-    descriptor_set_layout: Arc<DescriptorSetLayout>,
+    pub(crate) descriptor_set_layout: Arc<DescriptorSetLayout>,
 }
 
 impl DescriptorPool {

vulkan-rs/src/descriptorset.rs

@@ -266,6 +266,22 @@ impl DescriptorSet {
     pub fn update(&self, writes: &[DescriptorWrite]) -> Result<()> {
         debug_assert!(!writes.is_empty());
 
+        #[cfg(debug_assertions)]
+        {
+            for (i, binding) in self
+                .pool
+                .descriptor_set_layout
+                .bindings()
+                .iter()
+                .enumerate()
+            {
+                if let Some(write) = writes.get(i) {
+                    assert_eq!(write.binding, binding.binding);
+                    assert_eq!(write.descriptor_type, binding.desc_type);
+                }
+            }
+        }
+
         let mut vk_writes = Vec::new();
         let mut handles_lock = self.handles.lock().unwrap();