From 707bbc6a1fd2aa561976401602fc8fdb947cbb3f Mon Sep 17 00:00:00 2001
From: Andy Leiserson <aleiserson@mozilla.com>
Date: Tue, 6 May 2025 11:41:39 -0400
Subject: [PATCH] webidl: webgpu: make the `size` argument to
 `copyBufferToBuffer` optional

---
 .../src/features/gen_GpuCommandEncoder.rs     | 72 +++++++++++++++++++
 crates/web-sys/webidls/unstable/WebGPU.webidl |  2 +-
 2 files changed, 73 insertions(+), 1 deletion(-)

diff --git a/crates/web-sys/src/features/gen_GpuCommandEncoder.rs b/crates/web-sys/src/features/gen_GpuCommandEncoder.rs
index 426b59447fc..442bae2ff50 100644
--- a/crates/web-sys/src/features/gen_GpuCommandEncoder.rs
+++ b/crates/web-sys/src/features/gen_GpuCommandEncoder.rs
@@ -198,6 +198,78 @@ extern "C" {
     #[doc = ""]
     #[doc = "*This API is unstable and requires `--cfg=web_sys_unstable_apis` to be activated, as"]
     #[doc = "[described in the `wasm-bindgen` guide](https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html)*"]
+    pub fn copy_buffer_to_buffer_with_u32_and_u32(
+        this: &GpuCommandEncoder,
+        source: &GpuBuffer,
+        source_offset: u32,
+        destination: &GpuBuffer,
+        destination_offset: u32,
+    ) -> Result<(), JsValue>;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "GpuBuffer")]
+    # [wasm_bindgen (catch , method , structural , js_class = "GPUCommandEncoder" , js_name = copyBufferToBuffer)]
+    #[doc = "The `copyBufferToBuffer()` method."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/GPUCommandEncoder/copyBufferToBuffer)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `GpuBuffer`, `GpuCommandEncoder`*"]
+    #[doc = ""]
+    #[doc = "*This API is unstable and requires `--cfg=web_sys_unstable_apis` to be activated, as"]
+    #[doc = "[described in the `wasm-bindgen` guide](https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html)*"]
+    pub fn copy_buffer_to_buffer_with_f64_and_u32(
+        this: &GpuCommandEncoder,
+        source: &GpuBuffer,
+        source_offset: f64,
+        destination: &GpuBuffer,
+        destination_offset: u32,
+    ) -> Result<(), JsValue>;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "GpuBuffer")]
+    # [wasm_bindgen (catch , method , structural , js_class = "GPUCommandEncoder" , js_name = copyBufferToBuffer)]
+    #[doc = "The `copyBufferToBuffer()` method."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/GPUCommandEncoder/copyBufferToBuffer)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `GpuBuffer`, `GpuCommandEncoder`*"]
+    #[doc = ""]
+    #[doc = "*This API is unstable and requires `--cfg=web_sys_unstable_apis` to be activated, as"]
+    #[doc = "[described in the `wasm-bindgen` guide](https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html)*"]
+    pub fn copy_buffer_to_buffer_with_u32_and_f64(
+        this: &GpuCommandEncoder,
+        source: &GpuBuffer,
+        source_offset: u32,
+        destination: &GpuBuffer,
+        destination_offset: f64,
+    ) -> Result<(), JsValue>;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "GpuBuffer")]
+    # [wasm_bindgen (catch , method , structural , js_class = "GPUCommandEncoder" , js_name = copyBufferToBuffer)]
+    #[doc = "The `copyBufferToBuffer()` method."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/GPUCommandEncoder/copyBufferToBuffer)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `GpuBuffer`, `GpuCommandEncoder`*"]
+    #[doc = ""]
+    #[doc = "*This API is unstable and requires `--cfg=web_sys_unstable_apis` to be activated, as"]
+    #[doc = "[described in the `wasm-bindgen` guide](https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html)*"]
+    pub fn copy_buffer_to_buffer_with_f64_and_f64(
+        this: &GpuCommandEncoder,
+        source: &GpuBuffer,
+        source_offset: f64,
+        destination: &GpuBuffer,
+        destination_offset: f64,
+    ) -> Result<(), JsValue>;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "GpuBuffer")]
+    # [wasm_bindgen (catch , method , structural , js_class = "GPUCommandEncoder" , js_name = copyBufferToBuffer)]
+    #[doc = "The `copyBufferToBuffer()` method."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/GPUCommandEncoder/copyBufferToBuffer)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `GpuBuffer`, `GpuCommandEncoder`*"]
+    #[doc = ""]
+    #[doc = "*This API is unstable and requires `--cfg=web_sys_unstable_apis` to be activated, as"]
+    #[doc = "[described in the `wasm-bindgen` guide](https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html)*"]
     pub fn copy_buffer_to_buffer_with_u32_and_u32_and_u32(
         this: &GpuCommandEncoder,
         source: &GpuBuffer,
diff --git a/crates/web-sys/webidls/unstable/WebGPU.webidl b/crates/web-sys/webidls/unstable/WebGPU.webidl
index 56e8130ab1c..48b0ef09763 100644
--- a/crates/web-sys/webidls/unstable/WebGPU.webidl
+++ b/crates/web-sys/webidls/unstable/WebGPU.webidl
@@ -946,7 +946,7 @@ interface GPUCommandEncoder {
         GPUSize64 sourceOffset,
         GPUBuffer destination,
         GPUSize64 destinationOffset,
-        GPUSize64 size);
+        optional GPUSize64 size);
 
     [Throws]
     undefined copyBufferToTexture(