Add unstable bindings for the Compression Streams API (#3752)

CHANGELOG.md

@@ -19,6 +19,9 @@
 * Add bindings for `UserActivation`.
   [#3719](https://github.com/rustwasm/wasm-bindgen/pull/3719)
 
+* Add unstable bindings for the Compression Streams API.
+  [#3752](https://github.com/rustwasm/wasm-bindgen/pull/3752)
+
 ### Changed
 
 * Stabilize File System API.

crates/web-sys/Cargo.toml

@@ -203,6 +203,8 @@ Comment = ["CharacterData", "EventTarget", "Node"]
 CompositeOperation = []
 CompositionEvent = ["Event", "UiEvent"]
 CompositionEventInit = []
+CompressionFormat = []
+CompressionStream = []
 ComputedEffectTiming = []
 ConnStatusDict = []
 ConnectionType = []
@@ -268,6 +270,7 @@ DataTransferItemList = []
 DateTimeValue = []
 DecoderDoctorNotification = []
 DecoderDoctorNotificationType = []
+DecompressionStream = []
 DedicatedWorkerGlobalScope = ["EventTarget", "WorkerGlobalScope"]
 DelayNode = ["AudioNode", "EventTarget"]
 DelayOptions = []

crates/web-sys/src/features/gen_CompressionFormat.rs

@@ -0,0 +1,17 @@
+#![allow(unused_imports)]
+#![allow(clippy::all)]
+use wasm_bindgen::prelude::*;
+#[cfg(web_sys_unstable_apis)]
+#[wasm_bindgen]
+#[doc = "The `CompressionFormat` enum."]
+#[doc = ""]
+#[doc = "*This API requires the following crate features to be activated: `CompressionFormat`*"]
+#[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)*"]
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum CompressionFormat {
+    Deflate = "deflate",
+    DeflateRaw = "deflate-raw",
+    Gzip = "gzip",
+}

crates/web-sys/src/features/gen_CompressionStream.rs

@@ -0,0 +1,55 @@
+#![allow(unused_imports)]
+#![allow(clippy::all)]
+use super::*;
+use wasm_bindgen::prelude::*;
+#[cfg(web_sys_unstable_apis)]
+#[wasm_bindgen]
+extern "C" {
+    # [wasm_bindgen (extends = :: js_sys :: Object , js_name = CompressionStream , typescript_type = "CompressionStream")]
+    #[derive(Debug, Clone, PartialEq, Eq)]
+    #[doc = "The `CompressionStream` class."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/CompressionStream)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `CompressionStream`*"]
+    #[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 type CompressionStream;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "ReadableStream")]
+    # [wasm_bindgen (structural , method , getter , js_class = "CompressionStream" , js_name = readable)]
+    #[doc = "Getter for the `readable` field of this object."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/CompressionStream/readable)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `CompressionStream`, `ReadableStream`*"]
+    #[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 readable(this: &CompressionStream) -> ReadableStream;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "WritableStream")]
+    # [wasm_bindgen (structural , method , getter , js_class = "CompressionStream" , js_name = writable)]
+    #[doc = "Getter for the `writable` field of this object."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/CompressionStream/writable)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `CompressionStream`, `WritableStream`*"]
+    #[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 writable(this: &CompressionStream) -> WritableStream;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "CompressionFormat")]
+    #[wasm_bindgen(catch, constructor, js_class = "CompressionStream")]
+    #[doc = "The `new CompressionStream(..)` constructor, creating a new instance of `CompressionStream`."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/CompressionStream/CompressionStream)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `CompressionFormat`, `CompressionStream`*"]
+    #[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 new(format: CompressionFormat) -> Result<CompressionStream, JsValue>;
+}

crates/web-sys/src/features/gen_DecompressionStream.rs

@@ -0,0 +1,55 @@
+#![allow(unused_imports)]
+#![allow(clippy::all)]
+use super::*;
+use wasm_bindgen::prelude::*;
+#[cfg(web_sys_unstable_apis)]
+#[wasm_bindgen]
+extern "C" {
+    # [wasm_bindgen (extends = :: js_sys :: Object , js_name = DecompressionStream , typescript_type = "DecompressionStream")]
+    #[derive(Debug, Clone, PartialEq, Eq)]
+    #[doc = "The `DecompressionStream` class."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/DecompressionStream)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `DecompressionStream`*"]
+    #[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 type DecompressionStream;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "ReadableStream")]
+    # [wasm_bindgen (structural , method , getter , js_class = "DecompressionStream" , js_name = readable)]
+    #[doc = "Getter for the `readable` field of this object."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/DecompressionStream/readable)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `DecompressionStream`, `ReadableStream`*"]
+    #[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 readable(this: &DecompressionStream) -> ReadableStream;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "WritableStream")]
+    # [wasm_bindgen (structural , method , getter , js_class = "DecompressionStream" , js_name = writable)]
+    #[doc = "Getter for the `writable` field of this object."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/DecompressionStream/writable)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `DecompressionStream`, `WritableStream`*"]
+    #[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 writable(this: &DecompressionStream) -> WritableStream;
+    #[cfg(web_sys_unstable_apis)]
+    #[cfg(feature = "CompressionFormat")]
+    #[wasm_bindgen(catch, constructor, js_class = "DecompressionStream")]
+    #[doc = "The `new DecompressionStream(..)` constructor, creating a new instance of `DecompressionStream`."]
+    #[doc = ""]
+    #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/DecompressionStream/DecompressionStream)"]
+    #[doc = ""]
+    #[doc = "*This API requires the following crate features to be activated: `CompressionFormat`, `DecompressionStream`*"]
+    #[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 new(format: CompressionFormat) -> Result<DecompressionStream, JsValue>;
+}

crates/web-sys/src/features/mod.rs

@@ -1030,6 +1030,18 @@ mod gen_CompositionEventInit;
 #[cfg(feature = "CompositionEventInit")]
 pub use gen_CompositionEventInit::*;
 
+#[cfg(feature = "CompressionFormat")]
+#[allow(non_snake_case)]
+mod gen_CompressionFormat;
+#[cfg(feature = "CompressionFormat")]
+pub use gen_CompressionFormat::*;
+
+#[cfg(feature = "CompressionStream")]
+#[allow(non_snake_case)]
+mod gen_CompressionStream;
+#[cfg(feature = "CompressionStream")]
+pub use gen_CompressionStream::*;
+
 #[cfg(feature = "ComputedEffectTiming")]
 #[allow(non_snake_case)]
 mod gen_ComputedEffectTiming;
@@ -1420,6 +1432,12 @@ mod gen_DecoderDoctorNotificationType;
 #[cfg(feature = "DecoderDoctorNotificationType")]
 pub use gen_DecoderDoctorNotificationType::*;
 
+#[cfg(feature = "DecompressionStream")]
+#[allow(non_snake_case)]
+mod gen_DecompressionStream;
+#[cfg(feature = "DecompressionStream")]
+pub use gen_DecompressionStream::*;
+
 #[cfg(feature = "DedicatedWorkerGlobalScope")]
 #[allow(non_snake_case)]
 mod gen_DedicatedWorkerGlobalScope;

crates/web-sys/webidls/unstable/Compression.webidl

@@ -0,0 +1,17 @@
+enum CompressionFormat {
+  "deflate",
+  "deflate-raw",
+  "gzip",
+};
+
+[Exposed=*]
+interface CompressionStream {
+  constructor(CompressionFormat format);
+};
+CompressionStream includes GenericTransformStream;
+
+[Exposed=*]
+interface DecompressionStream {
+  constructor(CompressionFormat format);
+};
+DecompressionStream includes GenericTransformStream;