Update rust-wasm-bindgen monorepo

[ki7dk]

This PR contains the following updates:

Package	Type	Update	Change
js-sys (source)	dependencies	patch	0.3.104 → 0.3.106
wasm-bindgen (source)	dependencies	patch	0.2.127 → 0.2.129
wasm-bindgen-futures (source)	dependencies	patch	0.4.77 → 0.4.79

---

Release Notes

wasm-bindgen/wasm-bindgen (wasm-bindgen)

v0.2.129

Compare Source

Added

• Added the WebGL extension interface EXT_polygon_offset_clamp.
  #​5336

• Added the texture-compression-unaligned variant to GpuFeatureName,
  matching the WebGPU specification.
  #​5335

• Added an Emscripten Target page to the guide covering the
  wasm32-unknown-emscripten build flow, including the experimental
  #[wasm_bindgen(experimental_tokio)] attribute for driving an exported
  async function on a Tokio event-loop runtime there, gated behind
  --cfg wasm_bindgen_unstable_tokio.
  #​5334

• Added experimental JSPI support on the wasm32-unknown-emscripten target,
  gated behind --cfg wasm_bindgen_unstable_jspi: #[wasm_bindgen(jspi)],
  #[wasm_bindgen(suspending)], jspi_block_on_promise and the JSPI context
  inheritance of spawn_local work when linking with -sJSPI and
  -sJSPI_HOOKS (or -sREENTRANT_JSPI). The fibers belong to Emscripten's
  JSPI runtime, which wasm-bindgen integrates with through its lifecycle hook
  exports instead of its own shadow stack management. jspi combines with
  experimental_tokio into a parked runtime: the export is a promising
  activation running its future with block_on on a Tokio runtime whose
  waits are JSPI suspensions, so invocations interleave at every wait.
  #​5333

Changed

• Library MSRV bumped from 1.77 to 1.81, per the 2-year MSRV policy.
  #​5257

Fixed

• The wasm_bindgen, wasm_bindgen_futures and js_sys crate-path options
  on a #[wasm_bindgen] impl block now apply to its methods; previously they
  were ignored there.
  #​5333

• Struct field getters no longer trigger the unsafe_op_in_unsafe_fn lint
  (warn by default in edition 2024) when the field name comes from a
  macro_rules! body, for example through paste!.
  #​4465

• The headless test runner now keeps the path of a remote WebDriver URL set
  with variables like CHROMEDRIVER_REMOTE. A driver at
  http://host/wd/hub/ now gets http://host/wd/hub/session instead of
  http://host/session.
  #​2841

• The bundler entry module no longer re-exports #[wasm_bindgen(private)]
  items from *_bg.js, which does not export them.
  #​5343

• web-sys: WebGL extension interfaces declared with LegacyNoInterfaceObject
  (OVR_multiview2, WEBGL_multi_draw, EXT_polygon_offset_clamp) now
  generate is_type_of = |_| false like their NoInterfaceObject counterparts.
  #​5336

• The blanket From<E: Error> for JsError impl is now available without the
  std feature, using core::error::Error, so ? works in no_std crates.
  #​5029

• Emscripten output no longer emits the instance reinit machinery, which
  Emscripten's JS compiler rejected (unescaped multi-line __postset, and
  var reinit_scheduled = let ...): schedule_reinit() is a no-op there since
  Emscripten owns instantiation. The closure finalization __postset is now
  emitted as an escaped string literal.
  #​5332

• Updated walrus to 0.27.2, fixing --keep-debug output that wasm-opt -g
  could not process: .debug_loc entries for removed code were unparseable
  (debug_loc error), and DW_AT_high_pc was re-encoded as variable-width
  udata (compile unit size was incorrect).
  #​5328

• The headless test runner no longer hangs on a WebDriver that never answers, or on
  a browser holding the driver's stdio pipes open.
  #​5338

• The CLI's schema version mismatch error now names the input Wasm file and
  the path of the running wasm-bindgen binary.
  #​4430

• #[wasm_bindgen(inspectable)] on a tuple struct no longer generates invalid
  JavaScript. The generated toJSON now reads the 0, 1, ... fields as
  this["0"] instead of this.0.
  #​2573

v0.2.128

Compare Source

Added

• Added OffscreenCanvas overloads for the WebGL texImage2D, texSubImage2D,
  texImage3D and texSubImage3D functions, matching the TexImageSource
  typedef in the WebGL specification.
  #​5312

• Added --split-debug-info to the CLI. This option extracts the DWARF debug
  info to a separate *_bg.debug.wasm file. Use --debug-info-url to set
  the recorded URL for the debug info. #​5279

• Added #[wasm_bindgen(experimental_generic_mono)] for imported functions,
  which binds a generic import once per monomorphisation instead of erasing
  its type parameters to JsValue. It can be applied to an individual import
  or to a whole extern "C" block, which every generic function in the block
  then inherits. Each instantiation gets its own descriptor, so arguments and
  return values are marshalled at their concrete types (a u32 crosses as a
  number, a String as a string) rather than being boxed. Trait bounds,
  where predicates (including higher-ranked ones), associated-type
  projections, lifetime parameters, argument-position impl Trait, raw
  callbacks with owned generic inputs and returns, async, catch, and
  slice_to_array are all supported; see
  the guide
  for the supported surface and the shapes that are rejected. The attribute
  is experimental and may change as it stabilizes.
  #​5230
  #​5272
  #​5314

• Added the experimental, sealed JsStringLike marker trait — implemented for
  String/&str (and js_sys::JsString/&js_sys::JsString in js-sys) —
  as a bound for experimental_generic_mono imports that accept any string
  shape at its native wire format.

• #[wasm_bindgen(experimental_generic_mono)] now supports class-level generic
  parameters: an imported type that is itself generic (type Holder<T>),
  used as a method receiver (this: &Holder<T>), or as the return type of a
  constructor or self-returning static method (fn new<T>(value: T) -> Holder<T>). See Class-level generics
  in the guide.
  #​5290

• A generic imported type used as a method receiver or a constructor's return
  type may now carry concrete generic arguments (this: &Holder<u32>,
  this: &Holder<u32, T>). The arguments are re-emitted as written, so the
  generated method hangs off impl Holder<u32> rather than the class's own
  parameter defaults.
  #​5290

• Added experimental JSPI (JS Promise Integration) support: using it emits a
  compiler warning noting the experimental status.
  Supports #[wasm_bindgen(jspi)] on exports (sync or async), within which
  a #[wasm_bindgen(suspending)] import call can suspend to the JS event
  loop until its Promise settles. js_sys::futures::jspi_block_on_promise
  also suspends on any Promise inside a synchronous function, while
  spawn_local is context-aware: tasks spawned from within a JSPI context
  support synchronous JSPI suspensions throughout their call trees.
  Compatible with catch (rejections as Err), async, and
  panic=unwind.
  #​5193

• Added a --ts-typed-array-buffers CLI flag to declare owned typed-array
  return values (e.g. Vec<u8>) as Uint8Array<ArrayBuffer> in generated
  TypeScript, since they are always copied into a fresh, non-shared
  ArrayBuffer. Requires TypeScript 5.7+.
  #​5263

Changed

• Export shim symbols are now mangled with a per-crate hash, so identically
  named exports from different crates (or two versions of one crate) no
  longer fail the link with duplicate-symbol errors; the CLI restores the
  canonical names in the final module. Same-named #[wasm_bindgen(private)]
  structs/enums now coexist (numbered Name, Name2, ... internally in the
  generated bindings), while genuinely conflicting public exports are
  reported as a wasm-bindgen error instead of a wasm-ld failure. Requires
  matching wasm-bindgen and CLI versions (schema bump).
  #​2247

• Setting js_namespace on both an extern "C" block and an item inside it
  is now a hard error. Nested paths must be written in a single attribute,
  e.g. js_namespace = ["a", "b"]. The previous behavior silently dropped
  the block-level namespace.
  #​4324

• Changed WebGPU setImmediates APIs to take immutable u8 slice.
  #​5289

• Changed Web Bluetooth writeValue / writeValueWithResponse /
  writeValueWithoutResponse and WebUSB controlTransferOut / transferOut
  / isochronousTransferOut APIs to take immutable u8 slices.
  #​5309

• Emscripten glue no longer reads wasmExports['name'] inline inside inner
  functions. It now references the asmjs-mangled identifiers emcc's own
  top-level assignWasmExports receiving code binds for every wasm export
  (e.g. ___wbindgen_malloc, ___wbindgen_externrefs), which are the
  canonical DCE-graph pairs: wasm-metadce keeps exactly the exports the
  included glue uses (previously internal exports and the externref table
  could be stripped or left unrenamed by the import/export minifier at -O2,
  breaking at runtime). Hoisted classes are now emitted as =-prefixed
  string value snippets so jsifier declares them as
  export var Class = class Class {...} instead of an export class
  declaration, which crashes emcc's acorn-optimizer under
  -sMODULARIZE=instance.

Fixed

• C-style #[wasm_bindgen] enums in Vec<T> / Box<[T]> now generate
  TypeScript and JSDoc as EnumName[] instead of any[].
  #​5321

• Fixed js-sys failing to compile with no_std and the
  futures-core-03-stream feature enabled, since the feature unconditionally
  pulled in futures-util/std. The std feature of futures-util is now only
  enabled by the js-sys std feature.
  #​5322

• The thread-bootstrap transform is now skipped in Emscripten mode, where the
  Emscripten runtime owns pthread startup and TLS. It previously ran on any
  module with shared memory and aborted the build (failed to find __wasm_init_tls), since Emscripten's linker had already consumed the
  synthetic symbols it looks for.
  #​5315

• Fixed conflicting deprecation messages on web-sys dictionary fields that
  are themselves deprecated: the deprecated builder-style method no longer
  points at an equally-deprecated setter, and the WebAuthn fields removed from
  the specification (such as PublicKeyCredentialRpEntity's icon) now state
  why they are deprecated.
  #​5302

• #[wasm_bindgen] on a struct now reports an actionable error when the path
  to the wasm_bindgen crate cannot be resolved (e.g. when wasm-bindgen is
  only a transitive dependency through web-sys), instead of a confusing
  recursion limit error.
  #​5295

• Fixed js_namespace exports missing from the bundler target's entry module
  re-export list, making namespaces unreachable when importing the package.
  #​5267

• The CLI now reports an actionable error when the __wasm_bindgen_unstable
  custom section is missing from a module that still contains wasm-bindgen
  shims (e.g. stripped by llvm-objcopy --strip-all, which removes all custom
  sections since LLVM 23), instead of the confusing
  import of `X` doesn't have an adapter listed.
  #​5268

• The generated &T handle conversions (IntoWasmAbi/OptionIntoWasmAbi) for
  an imported type with lifetime parameters (type Holder<'a, T>) no longer
  reuse 'a for the reference itself. Previously the impl header declared only
  a fresh 'a plus the type's type parameters, so a type whose lifetime was
  not literally named 'a failed with E0261 against generated code, and one
  that was named 'a had its lifetime forced to unify with the borrow of
  &self — surfacing as E0521 whenever a generic method also had to resolve
  through the same impl.
  #​5290

• An inline lifetime bound on a generic import (fn f<'a: 'b, 'b, T>(..)) is no
  longer dropped from the generated wrapper. Previously the bound was lost while
  the generated shim still declared it, so calling the import failed with
  "lifetime may not live long enough" reported against generated code.
  #​5290

• A type-parameter default on a #[wasm_bindgen(experimental_generic_mono)] import is no
  longer silently ignored. It has no meaning there (every instantiation gets its
  own shim, so there is no single one to default) and rustc's own
  invalid_type_param_default lint cannot see it, since nothing of the original
  signature survives expansion; it is now rejected with the same
  defaults for generic parameters are not allowed here diagnostic rustc gives.
  Defaults on the type-erasure generic path are unaffected, where they remain
  meaningful.
  #​5290

• Fix js-sys wasm64 build with atomics feature.
  #​5274

• Declare initSync in the generated TypeScript definitions for
  --target no-modules, matching the wasm_bindgen.initSync function that
  the JS output already exposes.
  #​5284

• Removed the last panicking code paths from externref table management:
  RefCell::borrow_mut() embedded panic location data (including the source
  path string) in .rodata of optimized builds, which not even wasm-opt
  could remove.
  #​5292

• Fix --no-modules-global being ignored: the custom global name is now used
  for the generated JS binding and TypeScript declarations, and the name is
  validated as a JS identifier.
  #​5286

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The artifact failure details are included below:

File name: rust-analyst/Cargo.lock

    Updating crates.io index
error: failed to select a version for the requirement `js-sys = "=0.3.104"`
candidate versions found which didn't match: 0.3.106
location searched: crates.io index
required by package `wasm-bindgen-futures v0.4.77`
    ... which satisfies dependency `wasm-bindgen-futures = "^0.4"` (locked to 0.4.77) of package `wasm-analyst v0.1.0 (/tmp/renovate/repos/github/tissue-systems/tissue-examples/rust-analyst)`

File name: rust-g7-store/Cargo.lock

    Updating crates.io index
error: failed to select a version for the requirement `js-sys = "=0.3.104"`
candidate versions found which didn't match: 0.3.106
location searched: crates.io index
required by package `wasm-bindgen-futures v0.4.77`
    ... which satisfies dependency `wasm-bindgen-futures = "^0.4"` (locked to 0.4.77) of package `rust-g7-store v0.1.0 (/tmp/renovate/repos/github/tissue-systems/tissue-examples/rust-g7-store)`

File name: rust-phonebook/Cargo.lock

    Updating crates.io index
error: failed to select a version for the requirement `js-sys = "=0.3.104"`
candidate versions found which didn't match: 0.3.106
location searched: crates.io index
required by package `wasm-bindgen-futures v0.4.77`
    ... which satisfies dependency `wasm-bindgen-futures = "^0.4"` (locked to 0.4.77) of package `wasm-phonebook v0.1.0 (/tmp/renovate/repos/github/tissue-systems/tissue-examples/rust-phonebook)`

File name: rust-primes/Cargo.lock

    Updating crates.io index
error: failed to select a version for the requirement `js-sys = "=0.3.104"`
candidate versions found which didn't match: 0.3.106
location searched: crates.io index
required by package `wasm-bindgen-futures v0.4.77`
    ... which satisfies dependency `wasm-bindgen-futures = "^0.4"` (locked to 0.4.77) of package `wasm-primes v0.1.0 (/tmp/renovate/repos/github/tissue-systems/tissue-examples/rust-primes)`