Upgrade dependencies.

Cargo.toml

@@ -14,7 +14,7 @@ version = "0.8.19"
 [dependencies]
 ahash = "0.8"
 anyhow = "1.0"
-bytemuck = { version = "1.13", features = ["extern_crate_alloc"] }
+bytemuck = { version = "1.19", features = ["extern_crate_alloc"] }
 derive-getters = "0.5"
 document-features = "0.2.8"
 flume = "0.11.0"
@@ -24,20 +24,20 @@ half = { version = "2.2", features = ["bytemuck", "serde"] }
 instant = { version = "0.1", features = ["inaccurate", "wasm-bindgen"] }
 itertools = "0.13"
 log = "0.4"
-regex = "1.10"
+regex = "1.11"
 rustc-hash = "2.0.0"
 safetensors = "0.4"
-serde = { version = "1.0", features = ["derive", "rc"] }
+serde = { version = "1.0.210", features = ["derive", "rc"] }
 serde_bytes = "0.11.14"
 serde_json = "1.0"
-thiserror = "1.0"
+thiserror = "2.0"
 tracing = { version = "0.1.40", optional = true }
 tracing-subscriber = { version = "0.3.18", optional = true }
 tracing-tracy = { version = "0.11.0", optional = true }
 trait-variant = "0.1"
 uid = "0.1"
 wasm-bindgen = "0.2"
-wgpu = "22.1.0"
+wgpu = "23.0.0"
 
 [dependencies.web-rwkv-derive]
 path = "crates/web-rwkv-derive"
@@ -46,19 +46,19 @@ version = "0.2.5"
 [dependencies.tokio]
 default-features = false
 features = ["macros", "rt", "sync", "time"]
-version = "1.40"
+version = "1.41"
 
 [dev-dependencies]
 cbor4ii = { version = "0.3.2", features = ["half-f16", "serde1"] }
-fastrand = "2.0"
+fastrand = "2.2"
 memmap2 = "0.9"
 tokio = { version = "1.37", features = ["full"] }
 # wgpu-profiler = "0.14.1"
-clap = { version = "4.3", features = ["derive"] }
+clap = { version = "4.5", features = ["derive"] }
 crossterm = "0.28"
 dialoguer = "0.11.0"
-pollster = "0.3.0"
-ratatui = { version = "0.28", features = ["all-widgets"] }
+pollster = "0.4.0"
+ratatui = { version = "0.29", features = ["all-widgets"] }
 simple_logger = { version = "5.0.0", features = ["stderr"] }
 
 [features]

src/context.rs

@@ -285,7 +285,7 @@ impl ContextInternal {
                         label: Some(name),
                         layout: layout.as_ref(),
                         module,
-                        entry_point,
+                        entry_point: Some(entry_point),
                         compilation_options: Default::default(),
                         cache: None,
                     });

src/tensor/mod.rs

@@ -477,6 +477,14 @@ impl<T: Scalar, K: Kind> TensorGpu<T, K> {
     pub fn back_in_place(&self) -> TensorCpu<T> {
         use crate::context::ContextEvent;
 
+        if self.is_empty() {
+            return TensorCpu {
+                shape: self.shape,
+                data: Arc::new([]),
+                phantom: PhantomData,
+            };
+        }
+
         let context = &self.context;
         let size = self.buffer.size();
         let buffer = context.checkout_buffer(
@@ -510,6 +518,14 @@ impl<T: Scalar, K: Kind> TensorGpu<T, K> {
     pub async fn back(&self) -> TensorCpu<T> {
         use crate::context::ContextEvent;
 
+        if self.is_empty() {
+            return TensorCpu {
+                shape: self.shape,
+                data: Arc::new([]),
+                phantom: PhantomData,
+            };
+        }
+
         let context = &self.context;
         let size = self.buffer.size();
         let buffer = context.checkout_buffer(
@@ -541,6 +557,14 @@ impl<T: Scalar, K: Kind> TensorGpu<T, K> {
 
     #[cfg(target_arch = "wasm32")]
     pub async fn back(self) -> TensorCpu<T> {
+        if self.is_empty() {
+            return TensorCpu {
+                shape: self.shape,
+                data: Arc::new([]),
+                phantom: PhantomData,
+            };
+        }
+
         let context = &self.context;
         let size = self.buffer.size();
         let buffer = context.checkout_buffer(