v0.2.118

Compare Source

Added

• Added Error::stack_trace_limit() and Error::set_stack_trace_limit() bindings
  to js-sys for the non-standard V8 Error.stackTraceLimit property.
  #​5082

• Added support for multiple #[wasm_bindgen(start)] functions, which are
  chained together at initialization, as well as a new
  #[wasm_bindgen(start, private)] to register a start function without
  exporting it as a public export.
  #​5081

• Reinitialization is no longer automatically applied when using panic=unwind
  and --experimental-reset-state-function, instead it is triggered by any
  use of the handler::schedule_reinit() function under panic=unwind,
  which is supported from within the on_abort handler for reinit workflows.
  Renamed handler::reinit() to handler::schedule_reinit() and removed
  the set_on_reinit() handler. The __instance_terminated address
  is now always a simple boolean (0 = live, 1 = terminated).
  #​5083

• handler::schedule_reinit() now works under panic=abort builds. Previously
  it was a no-op; it now sets the JS-side reinit flag and the next export call
  transparently creates a fresh WebAssembly.Instance.
  #​5099

Changed

• MSRV bump from 1.71 to 1.76 for the CLI, and 1.82 to 1.86 for the API
  #​5102

Fixed

• ES module import statements are now hoisted to the top of generated JS
  files, placed right after the @ts-self-types directive. This ensures
  valid ES module output since import declarations must precede other
  statements.
  #​5103

• Fixed two CLI issues affecting WASM modules built by rustc 1.94+. First,
  a panic (failed to find N in function table) caused by lld emitting element
  segment offsets as global.get $__table_base or extended const expressions
  instead of plain i32.const N for large function tables; the fix adds a
  const-expression evaluator in get_function_table_entry and guards against
  integer underflow in multi-segment tables. Second, the descriptor interpreter
  now routes all global reads/writes through a single globals HashMap seeded
  from the module's own globals, and mirrors the module's actual linear memory
  rather than a fixed 32KB buffer, so the stack pointer's real value is valid
  without any override. This fixes panics like failed to find 32752 in function table caused by GOT.func.internal.* globals being misidentified as the
  stack pointer.
  #​5076
  #​5080
  #​5093
  #​5095

v0.2.117

Compare Source

Fixed

• Fixed a regression introduced in #​5026 where stable web-sys methods that
  accept a union type containing a [WbgGeneric] interface (e.g.
  ImageBitmapSource, which includes VideoFrame) incorrectly applied typed
  generics to all union expansions rather than only those whose argument type
  is itself [WbgGeneric]. In practice this caused Window::create_image_bitmap_with_*
  and the corresponding WorkerGlobalScope overloads to return
  Promise<ImageBitmap> instead of Promise<JsValue> for the stable
  (non-VideoFrame) call sites, breaking JsFuture::from(promise).await?.
  #​5064
  #​5073

• Fixed handling logic for environment variable WASM_BINDGEN_TEST_ADDRESS in
  the test runner, when running tests in headless mode.
  #​5087

v0.2.116

Compare Source

Added

• Added js_sys::Float16Array bindings, DataView float16 accessors using
  f32, and raw [u16] helper APIs for interoperability with binary16
  representations such as half::f16.
  #​5033

Changed

• Updated to Walrus 0.26.1 for deterministic type section ordering.
  #​5069

• The #[wasm_bindgen] macro now emits &mut (impl FnMut(...) + MaybeUnwindSafe)
  / &(impl Fn(...) + MaybeUnwindSafe) for raw &mut dyn FnMut / &dyn Fn
  import arguments instead of a hidden generic parameter and where-clause. The
  generated signature is cleaner and the MaybeUnwindSafe bound is visible
  directly in the argument position. The ABI and wire format are unchanged.
  When building with panic=unwind, closures that capture non-UnwindSafe
  values (e.g. &mut T, Cell<T>) must wrap them in AssertUnwindSafe before
  capture; on all other targets MaybeUnwindSafe is a no-op blanket impl.
  #​5056