Update rust-wasm-bindgen monorepo

[ki7dk]

This PR contains the following updates:

Package	Type	Update	Change
js-sys (source)	dependencies	patch	0.3.103 → 0.3.104
wasm-bindgen (source)	dependencies	patch	0.2.126 → 0.2.127
wasm-bindgen-futures (source)	dependencies	patch	0.4.76 → 0.4.77

---

Release Notes

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

v0.2.127

Compare Source

Added

• Navigation API
  to web-sys #​5247

• Added #[wasm_bindgen(generic_per_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 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, async, catch, and slice_to_array are
  all supported; see the guide
  for the supported surface and the shapes that are rejected.

• Added riscv64gc-unknown-linux-gnu release artifacts.
  #​5265

• Added JsNullable<T>, modeling WebIDL nullable types (T | null). Both
  null and undefined are treated as absent, per WebIDL's ECMAScript
  conversion rules; the canonical empty value produced from Rust is null.
  web-sys now uses JsNullable<T> instead of JsOption<T> for nullable
  types nested inside generics (e.g. Promise<GpuError?> from
  GPUDevice.popErrorScope()), fixing spec-defined null resolutions being
  treated as present values under JsOption<T>'s strict undefined-only
  semantics. JsNullable<T> participates in the same upcast lattice as
  JsOption<T> (including contravariant closure argument casts), and
  additionally upcasts from Null and from JsOption<T> itself. Imported
  extern types now also upcast into JsOption<JsValue> and
  JsNullable<JsValue>, so catch-all nullable closures can be used where a
  typed callback is expected.
  #​5234

• 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

Changed

• Emscripten output now marks public exports (free functions, classes, enums,
  and namespace roots) with the __export: true and __force: true symbol
  attributes on their addToLibrary entries, instead of mutating
  EXPORTED_FUNCTIONS and pushing to extraLibraryFuncs at library-load time.
  The $initBindgen init closure is kept via __force: true, and private
  symbols (including namespace leaves) carry neither attribute — they remain
  reachable through __deps. Requires an emscripten with __export/__force
  symbol-attribute support.

• Updated WebGPU bindings to the August 2026 spec, including the new
  GPUCommandEncoder::copy_buffer_to_buffer overloads and setImmediates.
  #​5246

• Unstable API overload names now elide name tokens shared by every overload
  variant: LockManager::request_with_callback is now request, and
  request_with_options_and_callback is now request_with_options.
  #​5246

Fixed

• The name property of the JS error thrown for panic=unwind is now set from
  a string literal instead of PanicError.name, so it survives minification.
  #​5260

• Fixed Emscripten builds using pthreads failing to link.
  #​5254

• __wbg_load in web targets now throws a clear error including the HTTP
  status and URL when given a non-ok fetch Response, instead of surfacing a
  misleading MIME-type or Wasm-magic-number error.
  #​5256

• Restored __stack_pointer when an exception unwinds out of a wasm export,
  preventing repeated panic = "unwind" calls from leaking shadow-stack frames
  until the shadow stack is exhausted and calls trap. Node reports
  memory access out of bounds; poisoned instances can instead report
  Module terminated.
  #​5244

• slice_to_array on a &mut slice (which silently discarded JS's writes) or
  on a slice with a generic element type is now a compile error, and strings
  and arrays received by JS (e.g. a Vec<String> return value) no longer make
  a redundant copy of the freshly built value.
  #​5261

• Fixed async imports with non-JS-handle resolved types (e.g.
  async fn f() -> u32;) silently producing garbage since 0.2.109: the
  descriptor named the resolved type instead of the Promise handle that
  actually crosses the ABI.
  #5249

• Fixed catch imports returning i64/u64 throwing a TypeError (and
  panicking in __wbindgen_exn_store) when the JS import throws, since the
  handleError catch path returned undefined which cannot be converted to
  a Wasm i64.
  #​5238

• js_namespace is now part of an imported function's and imported static's
  generated shim name. Two imports with identical Rust signatures that differed
  only in their js_namespace hashed to the same __wbg_<name>_<hash>
  symbol, so they were treated as one binding and one of the two call sites
  silently invoked the wrong JS value.
  #​5250

• Macro hygiene fixes - slice_to_array now works in #![no_std] crates.
  Generated code no longer names core or std unqualified.
  #​5251

• Fixed length prefixes in descriptor strings to count chars rather than
  UTF-8 bytes, so non-ASCII names in js_name/typescript_type no longer
  panic the CLI or mis-bind the generated bindings.
  #​5248

• Fixed threaded Wasm memory layout to reserve wasm-bindgen's internal thread
  page after the module's original initial memory instead of at __heap_base,
  avoiding overlap with allocators that resolve __heap_base/__heap_end at
  link time and treat that range as preexisting heap space.
  #​5225

• Emscripten output now reaches wasm exports through emscripten's wasmExports
  object using bracket (string-literal) access (wasmExports['__wbindgen_start'])
  instead of a local wasm alias with dot access. wasmExports['name'] is the
  form emcc's DCE graph roots and its import/export minifier renames in the JS
  and the wasm together, so the glue now survives and stays consistent under
  -O3/-Os (previously the export names were minified without updating the JS
  call sites, e.g. __wbindgen_start is not defined).

• The emscripten detection marker static is no longer leaked as public API.
  #​5220
  #​5222

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[ki7dk]

⚠️ Artifact update problem

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The artifact failure details are included below:

File name: rust-analyst/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path rust-analyst/Cargo.toml --package js-sys@0.3.103 --precise 0.3.104
    Updating crates.io index
error: failed to select a version for the requirement `js-sys = "=0.3.103"`
candidate versions found which didn't match: 0.3.104
location searched: crates.io index
required by package `wasm-bindgen-futures v0.4.76`
    ... which satisfies dependency `wasm-bindgen-futures = "^0.4"` (locked to 0.4.76) of package `wasm-analyst v0.1.0 (/tmp/renovate/repos/github/tissue-systems/tissue-examples/rust-analyst)`

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

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path rust-g7-store/Cargo.toml --package js-sys@0.3.103 --precise 0.3.104
    Updating crates.io index
error: failed to select a version for the requirement `js-sys = "=0.3.103"`
candidate versions found which didn't match: 0.3.104
location searched: crates.io index
required by package `wasm-bindgen-futures v0.4.76`
    ... which satisfies dependency `wasm-bindgen-futures = "^0.4"` (locked to 0.4.76) 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

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path rust-phonebook/Cargo.toml --package js-sys@0.3.103 --precise 0.3.104
    Updating crates.io index
error: failed to select a version for the requirement `js-sys = "=0.3.103"`
candidate versions found which didn't match: 0.3.104
location searched: crates.io index
required by package `wasm-bindgen-futures v0.4.76`
    ... which satisfies dependency `wasm-bindgen-futures = "^0.4"` (locked to 0.4.76) of package `wasm-phonebook v0.1.0 (/tmp/renovate/repos/github/tissue-systems/tissue-examples/rust-phonebook)`

File name: rust-primes/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path rust-primes/Cargo.toml --package js-sys@0.3.103 --precise 0.3.104
    Updating crates.io index
error: failed to select a version for the requirement `js-sys = "=0.3.103"`
candidate versions found which didn't match: 0.3.104
location searched: crates.io index
required by package `wasm-bindgen-futures v0.4.76`
    ... which satisfies dependency `wasm-bindgen-futures = "^0.4"` (locked to 0.4.76) of package `wasm-primes v0.1.0 (/tmp/renovate/repos/github/tissue-systems/tissue-examples/rust-primes)`