Upgrading wasm-bindgen 0.1 to 0.2
Breaking0.1.0 → 0.2.130Breaking13Platform4New146Changed79Fixed154
Fetching 129 releases from GitHub…35 / 129
BreakingUpgrade verdict
13 breaking changes and 4 platform requirement changes.
In plain terms
- Two unstable method names changed, so code calling the old names must be updated.
- Some previously accepted slice_to_array uses now fail to compile, and some values are no longer copied needlessly.
- JsOption now only considers undefined to mean no value; null is treated as a real value. Code that expected null to become None must change.
- Removed ImmediateClosure type introduced in 0.2.109.
Must act Top 5 of 17 that need code or config changes
Requires Rust 1.81 from 0.2.129 (none stated before).
Adds cfg-if ^1.0.0, paste ^1, rustversion ^1.0.6, serde ^1.0, serde_derive ^1.0, serde_json ^1.0, tokio ^1, wasm-bindgen-shared =0.2.130.
Installs 20 packages in all (was 17).
Also installs bumpalo, pin-project-lite, wasm-bindgen-macro-support.
No longer installs fnv, unicode-xid.
Moves proc-macro2 0.2.3, 1.0.107 → 1.0.107, quote 0.4.2, 1.0.47 → 1.0.47, syn 0.12.15, 2.0.56 → 2.0.56, 3.0.9, wasm-bindgen-macro 0.1.1 → 0.2.130, wasm-bindgen-shared 0.1.1 → 0.2.130. Your build may pick other versions.
What you must change
Breaking13
Renames unstable overload APIs to elide shared name tokens: LockManager::request_with_callback becomes request and request_with_options_and_callback becomes request_with_options.
LockManager::request_with_callbackLockManager::requestLockManager::request_with_options_and_callbackLockManager::request_with_optionsMakes slice_to_array on &mut slices or generic element types a compile error and removes a redundant copy for strings and arrays received by JS.
slice_to_arrayVec<String>JsOption<T> now treats only undefined as empty, making JS null a distinct present value and removing the UpcastFrom<Null> impl.
JsOptionis_emptyas_optioninto_optionunwrapexpectunwrap_or_defaultunwrap_or_elseRemoved ImmediateClosure type introduced in 0.2.109.
ImmediateClosureScopedClosure::immediateSetting js_namespace on both an extern "C" block and an item inside it is now a hard error; nested paths must use a single attribute.
js_namespaceextern "C"Changes WebGPU setImmediates APIs to take an immutable u8 slice.
setImmediatesChanges Web Bluetooth writeValue variants and WebUSB controlTransferOut, transferOut and isochronousTransferOut APIs to take immutable u8 slices.
writeValuewriteValueWithResponsewriteValueWithoutResponsecontrolTransferOuttransferOutisochronousTransferOutFixes incorrect variance in &mut reference upcasting by making mutable references invariant in their pointee.
UpcastFromExported structs using js_namespace now require the namespace to be repeated on every impl block.
js_namespacewasm_bindgenInternal crate wasm-bindgen-backend will no longer be published.
wasm-bindgen-backendCrates intended purely for internal consumption by the wasm-bindgen CLI will no longer be published.
wasm-bindgen-externref-xformwasm-bindgen-multi-value-xformwasm-bindgen-threads-xformwasm-bindgen-wasm-conventionswasm-bindgen-wasm-interpreterRemoved Gecko-only InstallTriggerData and Gecko-internal FlexLineGrowthState, GridDeclaration, GridTrackState, RtcLifecycleEvent and WebrtcGlobalStatisticsReport features.
InstallTriggerDataFlexLineGrowthStateGridDeclarationGridTrackStateRtcLifecycleEventWebrtcGlobalStatisticsReportRemoved Gecko-internal dictionary bindings Csp, CspPolicies, CspReport and CspReportProperties.
CspCspPoliciesCspReportCspReportPropertiesPlatform4
Bumps the library MSRV from 1.77 to 1.81, per the 2-year MSRV policy.
-Cpanic=unwind on wasm now emits modern exnref exception handling by default and requires Node.js 22.22.3+.
WebAssembly.JSTag-Cpanic=unwind-Cllvm-args=-wasm-use-legacy-ehMSRV bump from 1.71 to 1.76 for the CLI, and 1.82 to 1.86 for the API.
New MSRV policy, and bump of the MSRV fo 1.71.