v0.0.19

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Other Changes

• Csskit-acceptance: Never skip tests (#​916) (#​916)
• Chore(deps): update dependencies (patch) (#​919) (#​919)
• Chore(deps): update dependencies (patch) (#​929) (#​929)
• Chore(deps): update dependencies (patch) (#​935) (#​935)

Chromashift

• chromashift: Add in_gamut_of(ColorSpace) to help guard minifying OOG. (#​915) (#​915)
• chromashift/csskit_transform/css_ast: Implement colour mixing & minification (#​924) (#​924)

Css_ast

• Regenerate css_ast/src/values from csswg drafts (#​911) (#​911)
• Regenerate css_ast/src/values from csswg drafts (#​918) (#​918)

Csskit

• chore(deps): update dependencies (patch) (#​912) (#​912)

Csskit_transform

• Update css-minify-tests (#​923) (#​923)

Csskit_vscode

• chore(deps): update dependency @​types/node to v24.11.0 (#​913) (#​913)
• chore(deps): update dependency @​types/node to v24.12.0 (#​921) (#​921)
• chore(deps): update dependencies to v1.50.0 (minor) (#​920) (#​920)
• chore(deps): update dependency @​types/vscode to v1.110.0 (#​930) (#​930)
• chore(deps): update dependency oxlint to v1.51.0 (#​938) (#​938)
• chore(deps): update dependency typescript to v6 (#​940) (#​940)

v0.2.115

Compare Source

Added

• console.debug/log/info/warn/error output from user-spawned Worker and
  SharedWorker instances is now forwarded to the CLI test runner during
  headless browser tests, just like output from the main thread. Works for
  blob URL workers, module workers, URL-based workers (importScripts), nested
  workers, and shared workers (including logs emitted before the first port
  connection). Non-cloneable arguments are serialized via String() rather
  than crashing the worker. The --nocapture flag is respected.
  #​5037

• js_sys::Promise<T> now implements IntoFuture, enabling direct .await on
  any JS promise without a wrapper type. The wasm-bindgen-futures implementation
  has been moved into js-sys behind an optional futures feature, which is
  activated automatically when wasm-bindgen-futures is a dependency. All
  existing wasm_bindgen_futures::* import paths continue to work unchanged via
  re-exports. js_sys::futures is also available directly for users who want
  promise.await without depending on wasm-bindgen-futures.
  #​5049

• Added --target emscripten support, generating a library_bindgen.js file
  for consumption by Emscripten at link time. Includes support for futures,
  JS closures, and TypeScript output. A new Emscripten-specific test runner is
  also included, along with CI integration.
  #​4443

• Added VideoFrame, VideoColorSpace, and related WebCodecs dictionaries/enums to web-sys.
  #​5008

• Added wasm_bindgen::handler module with set_on_abort and set_on_reinit
  hooks for panic=unwind builds. set_on_abort registers a callback invoked
  after the instance is terminated (hard abort, OOM, stack overflow).
  set_on_reinit registers a callback invoked after reinit() resets the
  WebAssembly instance via --experimental-reset-state-function. Handlers are
  stored as Wasm indirect-function-table indices so dispatch is safe even when
  linear memory is corrupt.

Changed

• Replaced per-closure generic destructors with a single __wbindgen_destroy_closure
  export.
  #​5019

• Refactored the headless browser test runner logging pipeline for dramatically improved
  performance (>400x faster on Chrome, >10x on Firefox, ~5x on Safari). Switched to
  incremental DOM scraping with textContent.slice(offset), append-only output semantics,
  unified log capture across all log levels on failure, and browser-specific invisible-div
  optimizations (display:none for Chrome/Firefox, visibility:hidden for Safari).
  #​4960

• TTY-gated status/clear output in the test runner shell to avoid \r control-character
  artifacts in non-interactive (CI) environments.
  #​4960

• Added bench_console_log_10mb benchmark alongside the existing 1MB benchmark for the
  headless test runner. The main branch cannot complete this benchmark at any volume.
  #​4960

• Updated to Walrus 0.26
  #​5057

Fixed

• Fixed argument order when calling multi-parameter functions in the
  wasm-bindgen interpreter by reversing the args collected from the stack.
  #​5047

• Added support for per-operation [WbgGeneric] in WebIDL, restoring typed
  generic return types (e.g. Promise<ImageBitmap>) for createImageBitmap on
  Window and WorkerGlobalScope that were lost after the VideoFrame
  stabilization.
  #​5026

• Fixed missing #[cfg(feature = "...")] gates on deprecated dictionary builder
  methods and getters for union-typed fields (e.g. {Open,Save,Directory}FilePickerOptions::start_in()),
  and fixed per-setter doc requirements to list each setter's own required features.
  #​5039

• Fixed JsOption::new() to use undefined instead of null, to be compatible with Option::None and JS default parameters.
  #​5023

• Fixed unsound unsafe transmutes in JsOption<T>::wrap, as_option, and into_option
  by replacing transmute_copy with unchecked_into(). Also tightened the JsGeneric
  trait bound and JsOption<T> impl block to require T: JsGeneric (which implies JsCast),
  preventing use with arbitrary non-JS types.
  #​5030

• Fixed headless test runner emitting \r carriage-return sequences in non-TTY environments,
  which polluted captured logs in CI and complicated output-matching tests.
  #​4960

• Fixed headless test runner printing incomplete and out-of-order log output on test failures
  by merging all five log levels into a single unified output div.
  #​4960

• Fixed large test outputs (10MB+) causing oversized WebDriver responses that were either
  extremely slow or crashed completely, by switching to incremental streaming output collection.
  #​4960

• Fixed a duplciate wasm export in node ESM atomics, when compiled in debug mode
  #​5028

• Fixed a type inference regression (E0283: type annotations needed) introduced
  in v0.2.109 where the stable FromIterator and Extend impls on js_sys::Array
  were changed from A: AsRef<JsValue> to A: AsRef<T>. Because #[wasm_bindgen]
  generates multiple AsRef impls per type, the compiler could not uniquely resolve
  T, breaking code like Array::from_iter([my_wasm_value]) without explicit
  annotations. The stable impls are restored to A: AsRef<JsValue> (returning
  Array<JsValue>); the generic A: AsRef<T> forms remain available under
  js_sys_unstable_apis.
  #​5052

• Fixed skip_typescript not being respected when using reexport, causing
  TypeScript definitions to be incorrectly emitted for re-exported items marked
  with #[wasm_bindgen(skip_typescript)].
  #​5051

Removed