introduce StorageItem trait

wgpu-core/src/binding_model.rs

@@ -493,10 +493,9 @@ impl<A: HalApi> Drop for BindGroupLayout<A> {
 }
 
 crate::impl_resource_type!(BindGroupLayout);
+crate::impl_storage_item!(BindGroupLayout);
 
 impl<A: HalApi> Resource for BindGroupLayout<A> {
-    type Marker = crate::id::markers::BindGroupLayout;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -722,10 +721,9 @@ impl<A: HalApi> PipelineLayout<A> {
 }
 
 crate::impl_resource_type!(PipelineLayout);
+crate::impl_storage_item!(PipelineLayout);
 
 impl<A: HalApi> Resource for PipelineLayout<A> {
-    type Marker = crate::id::markers::PipelineLayout;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -936,10 +934,9 @@ impl<A: HalApi> BindGroup<A> {
 }
 
 crate::impl_resource_type!(BindGroup);
+crate::impl_storage_item!(BindGroup);
 
 impl<A: HalApi> Resource for BindGroup<A> {
-    type Marker = crate::id::markers::BindGroup;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }

wgpu-core/src/command/bundle.rs

@@ -1181,10 +1181,9 @@ impl<A: HalApi> RenderBundle<A> {
 }
 
 crate::impl_resource_type!(RenderBundle);
+crate::impl_storage_item!(RenderBundle);
 
 impl<A: HalApi> Resource for RenderBundle<A> {
-    type Marker = id::markers::RenderBundle;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }

wgpu-core/src/command/mod.rs

@@ -528,10 +528,9 @@ impl<A: HalApi> CommandBuffer<A> {
 }
 
 crate::impl_resource_type!(CommandBuffer);
+crate::impl_storage_item!(CommandBuffer);
 
 impl<A: HalApi> Resource for CommandBuffer<A> {
-    type Marker = id::markers::CommandBuffer;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }

wgpu-core/src/device/queue.rs

@@ -43,10 +43,9 @@ pub struct Queue<A: HalApi> {
 }
 
 crate::impl_resource_type!(Queue);
+crate::impl_storage_item!(Queue);
 
 impl<A: HalApi> Resource for Queue<A> {
-    type Marker = id::markers::Queue;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }

wgpu-core/src/device/resource.rs

@@ -3668,10 +3668,9 @@ impl<A: HalApi> Device<A> {
 }
 
 crate::impl_resource_type!(Device);
+crate::impl_storage_item!(Device);
 
 impl<A: HalApi> Resource for Device<A> {
-    type Marker = id::markers::Device;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }

wgpu-core/src/instance.rs

@@ -148,10 +148,11 @@ pub struct Surface {
 impl ResourceType for Surface {
     const TYPE: &'static str = "Surface";
 }
+impl crate::storage::StorageItem for Surface {
+    type Marker = markers::Surface;
+}
 
 impl Resource for Surface {
-    type Marker = markers::Surface;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -371,10 +372,9 @@ impl<A: HalApi> Adapter<A> {
 }
 
 crate::impl_resource_type!(Adapter);
+crate::impl_storage_item!(Adapter);
 
 impl<A: HalApi> Resource for Adapter<A> {
-    type Marker = markers::Adapter;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }

wgpu-core/src/pipeline.rs

@@ -66,10 +66,9 @@ impl<A: HalApi> Drop for ShaderModule<A> {
 }
 
 crate::impl_resource_type!(ShaderModule);
+crate::impl_storage_item!(ShaderModule);
 
 impl<A: HalApi> Resource for ShaderModule<A> {
-    type Marker = crate::id::markers::ShaderModule;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -230,10 +229,9 @@ impl<A: HalApi> Drop for ComputePipeline<A> {
 }
 
 crate::impl_resource_type!(ComputePipeline);
+crate::impl_storage_item!(ComputePipeline);
 
 impl<A: HalApi> Resource for ComputePipeline<A> {
-    type Marker = crate::id::markers::ComputePipeline;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -294,10 +292,9 @@ impl<A: HalApi> Drop for PipelineCache<A> {
 }
 
 crate::impl_resource_type!(PipelineCache);
+crate::impl_storage_item!(PipelineCache);
 
 impl<A: HalApi> Resource for PipelineCache<A> {
-    type Marker = crate::id::markers::PipelineCache;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -549,10 +546,9 @@ impl<A: HalApi> Drop for RenderPipeline<A> {
 }
 
 crate::impl_resource_type!(RenderPipeline);
+crate::impl_storage_item!(RenderPipeline);
 
 impl<A: HalApi> Resource for RenderPipeline<A> {
-    type Marker = crate::id::markers::RenderPipeline;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }

wgpu-core/src/registry.rs

@@ -6,8 +6,7 @@ use crate::{
     id::Id,
     identity::IdentityManager,
     lock::{rank, RwLock, RwLockReadGuard, RwLockWriteGuard},
-    resource::Resource,
-    storage::{Element, InvalidId, Storage},
+    storage::{Element, InvalidId, Storage, StorageItem},
 };
 
 #[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
@@ -37,14 +36,14 @@ impl RegistryReport {
 /// any other dependent resource
 ///
 #[derive(Debug)]
-pub(crate) struct Registry<T: Resource> {
+pub(crate) struct Registry<T: StorageItem> {
     // Must only contain an id which has either never been used or has been released from `storage`
     identity: Arc<IdentityManager<T::Marker>>,
     storage: RwLock<Storage<T>>,
     backend: Backend,
 }
 
-impl<T: Resource> Registry<T> {
+impl<T: StorageItem> Registry<T> {
     pub(crate) fn new(backend: Backend) -> Self {
         Self {
             identity: Arc::new(IdentityManager::new()),
@@ -59,12 +58,12 @@ impl<T: Resource> Registry<T> {
 }
 
 #[must_use]
-pub(crate) struct FutureId<'a, T: Resource> {
+pub(crate) struct FutureId<'a, T: StorageItem> {
     id: Id<T::Marker>,
     data: &'a RwLock<Storage<T>>,
 }
 
-impl<T: Resource> FutureId<'_, T> {
+impl<T: StorageItem> FutureId<'_, T> {
     #[allow(dead_code)]
     pub fn id(&self) -> Id<T::Marker> {
         self.id
@@ -99,7 +98,7 @@ impl<T: Resource> FutureId<'_, T> {
     }
 }
 
-impl<T: Resource> Registry<T> {
+impl<T: StorageItem> Registry<T> {
     pub(crate) fn prepare(&self, id_in: Option<Id<T::Marker>>) -> FutureId<T> {
         FutureId {
             id: match id_in {
@@ -204,6 +203,7 @@ mod tests {
     use crate::{
         id::Marker,
         resource::{Resource, ResourceInfo, ResourceType},
+        storage::StorageItem,
     };
 
     use super::Registry;
@@ -217,9 +217,11 @@ mod tests {
         const TYPE: &'static str = "TestData";
     }
 
-    impl Resource for TestData {
+    impl StorageItem for TestData {
         type Marker = TestDataId;
+    }
 
+    impl Resource for TestData {
         fn as_info(&self) -> &ResourceInfo {
             &self.info
         }

wgpu-core/src/resource.rs

@@ -8,10 +8,7 @@ use crate::{
     },
     global::Global,
     hal_api::HalApi,
-    id::{
-        AdapterId, BufferId, CommandEncoderId, DeviceId, Marker, SurfaceId, TextureId,
-        TextureViewId,
-    },
+    id::{AdapterId, BufferId, CommandEncoderId, DeviceId, SurfaceId, TextureId, TextureViewId},
     init_tracker::{BufferInitTracker, TextureInitTracker},
     lock::{Mutex, RwLock},
     resource_log,
@@ -174,8 +171,6 @@ macro_rules! impl_resource_type {
 }
 
 pub(crate) trait Resource: 'static + Sized + WasmNotSendSync + ResourceType {
-    type Marker: Marker;
-
     fn as_info(&self) -> &ResourceInfo;
 
     /// Returns a string identifying this resource for logging and errors.
@@ -791,10 +786,9 @@ pub enum CreateBufferError {
 }
 
 crate::impl_resource_type!(Buffer);
+crate::impl_storage_item!(Buffer);
 
 impl<A: HalApi> Resource for Buffer<A> {
-    type Marker = crate::id::markers::Buffer;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -883,10 +877,9 @@ impl<A: HalApi> Drop for StagingBuffer<A> {
 }
 
 crate::impl_resource_type!(StagingBuffer);
+crate::impl_storage_item!(StagingBuffer);
 
 impl<A: HalApi> Resource for StagingBuffer<A> {
-    type Marker = crate::id::markers::StagingBuffer;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -1419,10 +1412,9 @@ pub enum CreateTextureError {
 }
 
 crate::impl_resource_type!(Texture);
+crate::impl_storage_item!(Texture);
 
 impl<A: HalApi> Resource for Texture<A> {
-    type Marker = crate::id::markers::Texture;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -1590,10 +1582,9 @@ pub enum CreateTextureViewError {
 pub enum TextureViewDestroyError {}
 
 crate::impl_resource_type!(TextureView);
+crate::impl_storage_item!(TextureView);
 
 impl<A: HalApi> Resource for TextureView<A> {
-    type Marker = crate::id::markers::TextureView;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -1708,10 +1699,9 @@ pub enum CreateSamplerError {
 }
 
 crate::impl_resource_type!(Sampler);
+crate::impl_storage_item!(Sampler);
 
 impl<A: HalApi> Resource for Sampler<A> {
-    type Marker = crate::id::markers::Sampler;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }
@@ -1765,10 +1755,9 @@ impl<A: HalApi> ParentDevice<A> for QuerySet<A> {
 }
 
 crate::impl_resource_type!(QuerySet);
+crate::impl_storage_item!(QuerySet);
 
 impl<A: HalApi> Resource for QuerySet<A> {
-    type Marker = crate::id::markers::QuerySet;
-
     fn as_info(&self) -> &ResourceInfo {
         &self.info
     }

wgpu-core/src/storage.rs

@@ -3,8 +3,8 @@ use std::sync::Arc;
 
 use wgt::Backend;
 
-use crate::id::Id;
-use crate::resource::Resource;
+use crate::id::{Id, Marker};
+use crate::resource::{Resource, ResourceType};
 use crate::{Epoch, Index};
 
 /// An entry in a `Storage::map` table.
@@ -27,6 +27,20 @@ pub(crate) enum Element<T> {
 #[derive(Clone, Debug)]
 pub(crate) struct InvalidId;
 
+// The Resource bound is still needed because of label_for_resource
+pub(crate) trait StorageItem: ResourceType + Resource {
+    type Marker: Marker;
+}
+
+#[macro_export]
+macro_rules! impl_storage_item {
+    ($ty:ident) => {
+        impl<A: HalApi> $crate::storage::StorageItem for $ty<A> {
+            type Marker = $crate::id::markers::$ty;
+        }
+    };
+}
+
 /// A table of `T` values indexed by the id type `I`.
 ///
 /// `Storage` implements [`std::ops::Index`], accepting `Id` values as
@@ -38,7 +52,7 @@ pub(crate) struct InvalidId;
 #[derive(Debug)]
 pub(crate) struct Storage<T>
 where
-    T: Resource,
+    T: StorageItem,
 {
     pub(crate) map: Vec<Element<T>>,
     kind: &'static str,
@@ -46,7 +60,7 @@ where
 
 impl<T> ops::Index<Id<T::Marker>> for Storage<T>
 where
-    T: Resource,
+    T: StorageItem,
 {
     type Output = Arc<T>;
     fn index(&self, id: Id<T::Marker>) -> &Arc<T> {
@@ -55,7 +69,7 @@ where
 }
 impl<T> Storage<T>
 where
-    T: Resource,
+    T: StorageItem,
 {
     pub(crate) fn new() -> Self {
         Self {
@@ -67,7 +81,7 @@ where
 
 impl<T> Storage<T>
 where
-    T: Resource,
+    T: StorageItem,
 {
     #[allow(dead_code)]
     pub(crate) fn contains(&self, id: Id<T::Marker>) -> bool {