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338 lines
10 KiB
Markdown
338 lines
10 KiB
Markdown
# `wasm-bindgen` Change Log
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## Unreleased
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Released YYYY-MM-DD.
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### Added
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* TODO (or remove section if none)
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### Changed
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* TODO (or remove section if none)
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### Deprecated
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* TODO (or remove section if none)
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### Removed
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* TODO (or remove section if none)
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### Fixed
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* TODO (or remove section if none)
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### Security
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* TODO (or remove section if none)
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--------------------------------------------------------------------------------
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## 0.2.23
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Released 2018-09-26.
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### Added
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* [This is the first release of the `web-sys`
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crate!](https://rustwasm.github.io/2018/09/26/announcing-web-sys.html)
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* Added support for unions of interfaces and non-interfaces in the WebIDL
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frontend.
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* Added a policy for inclusion of new ECMAScript features in `js-sys`: the
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feature must be in stage 4 or greater for us to support it.
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* Added some documentation about size profiling and optimization with
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`wasm-bindgen` to the guide.
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* Added the `Clamped<T>` type for generating JavaScript `Uint8ClampedArray`s.
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* CI is now running on beta! Can't wait for the `rustc` release trains to roll
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over, so we can run CI on stable too!
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* Added the `js_sys::try_iter` function, which checks arbitrary JS values for
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compliance with the JS iteration protocol, and if they are iterable, converts
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them into an iterator over the JS values that they yield.
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### Changed
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* We now only generate null checks on methods on the JS side when in debug
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mode. For safety we will always null check on the Rust side, however.
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* Improved error messages when defining setters that don't start with `set_` and
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don't use `js_name = ...`.
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* Improved generated code for classes in a way that avoids an unnecessary
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allocation with static methods that return `Self` but are not the "main"
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constructor.
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* **BREAKING:** `js_sys::Reflect` APIs are all fallible now. This is because
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reflecting on `Proxy`s whose trap handlers throw an exception can cause any of
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the reflection APIs to throw. Accordingly, `js_sys` has been bumped from
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`0.2.X` to `0.3.X`.
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### Fixed
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* The method of ensuring that `__wbindgen_malloc` and `__wbindgen_free` are
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always emitted in the `.wasm` binary, regardless of seeming reachability is
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now zero-overhead.
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--------------------------------------------------------------------------------
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## 0.2.22
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Released 2018-09-21
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### Added
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* The `IntoIterator` trait is now implemented for JS `Iterator` types
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* A number of variadic methods in `js-sys` have had explicit arities added.
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* The guide has been improved quite a bit as well as enhanced with more examples
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* The `js-sys` crate is now complete! Thanks so much to everyone involved to
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help fill out all the APIs.
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* Exported Rust functions with `#[wasm_bindgen]` can now return a `Result` where
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the `Err` payload is raised as an exception in JS.
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### Fixed
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* An issue with running `wasm-bindgen` on crates that have been compiled with
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LTO has been resolved.
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--------------------------------------------------------------------------------
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## 0.2.21
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Released 2018-09-07
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### Added
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* Added many more bindings for `WebAssembly` in the `js-sys` crate.
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### Fixed
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* The "names" section of the wasm binary is now correctly preserved by
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wasm-bindgen.
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--------------------------------------------------------------------------------
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## 0.2.20
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Released 2018-09-06
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### Added
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* All of `wasm-bindgen` is configured to compile on stable Rust as of the
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upcoming 1.30.0 release, scheduled for October 25, 2018.
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* The underlying `JsValue` of a `Closure<T>` type can now be extracted at any
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time.
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* Initial and experimental support was added for modules that have shared memory
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(use atomic instructions).
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### Removed
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* The `--wasm2asm` flag of `wasm2es6js` was removed because the `wasm2asm` tool
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has been removed from upstream Binaryen. This is replaced with the new
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`wasm2js` tool from Binaryen.
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### Fixed
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* The "schema" version for wasm-bindgen now changes on all publishes, meaning we
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can't forget to update it. This means that the crate version and CLI version
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must exactly match.
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* The `wasm-bindgen` crate now has a `links` key which forbids multiple versions
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of `wasm-bindgen` from being linked into a dependency graph, fixing obscure
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linking errors with a more first-class error message.
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* Binary releases for Windows has been fixed.
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--------------------------------------------------------------------------------
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## 0.2.19 (and 0.2.18)
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Released 2018-08-27.
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### Added
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* Added bindings to `js-sys` for some `WebAssembly` types.
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* Added bindings to `js-sys` for some `Intl` types.
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* Added bindings to `js-sys` for some `String` methods.
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* Added an example of using the WebAudio APIs.
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* Added an example of using the `fetch` API.
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* Added more `extends` annotations for types in `js-sys`.
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* Experimental support for `WeakRef` was added to automatically deallocate Rust
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objects when gc'd.
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* Added support for executing `wasm-bindgen` over modules that import their
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memory.
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* Added a global `memory()` function in the `wasm-bindgen` crate for accessing
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the JS object that represent wasm's own memory.
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### Removed
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* Removed `AsMut` implementations for imported objects.
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### Fixed
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* Fixed the `constructor` and `catch` attributes combined on imported types.
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* Fixed importing the same-named static in two modules.
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--------------------------------------------------------------------------------
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## 0.2.17
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Released 2018-08-16.
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### Added
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* Greatly expanded documentation in the wasm-bindgen guide.
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* Added bindings to `js-sys` for `Intl.DateTimeFormat`
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* Added a number of `extends` attributes for types in `js-sys`
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### Fixed
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* Fixed compile on latest nightly with latest `proc-macro2`
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* Fixed compilation in some scenarios on Windows with paths in `module` paths
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--------------------------------------------------------------------------------
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## 0.2.16
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Released 2018-08-13.
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### Added
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* Added the `wasm_bindgen::JsCast` trait, as described in [RFC #2][rfc-2].
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* Added [the `#[wasm_bindgen(extends = ...)]` attribute][extends-attr] to
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describe inheritance relationships, as described in [RFC #2][rfc-2].
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* Added support for receiving `Option<&T>` parameters from JavaScript in
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exported Rust functions and methods.
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* Added support for receiving `Option<u32>` and other option-wrapped scalars.
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* Added reference documentation to the guide for every `#[wasm_bindgen]`
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attribute and how it affects the generated bindings.
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* Published the `wasm-bindgen-futures` crate for converting between JS
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`Promise`s and Rust `Future`s.
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### Changed
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* Overhauled the guide's documentation on passing JS closures to Rust, and Rust
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closures to JS.
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* Overhauled the guide's documentation on using serde to serialize complex data
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to `JsValue` and deserialize `JsValue`s back into complex data.
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* Static methods are now always bound to their JS class, as is required for
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`Promise`'s static methods.
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### Removed
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* Removed internal usage of `syn`'s `visit-mut` cargo feature, which should
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result in faster build times.
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### Fixed
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* Various usage errors for the `#[wasm_bindgen]` proc-macro are now properly
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reported with source span information, rather than `panic!()`s inside the
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proc-macro.
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* Fixed a bug where taking a struct by reference and returning a slice resulted
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in lexical variable redeclaration errors in the generated JS glue. [#662][]
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* The `#[wasm_bindgen(js_class = "....")]` attribute for binding methods to
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renamed imported JS classes now properly works with constructors.
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[rfc-2]: https://rustwasm.github.io/rfcs/002-wasm-bindgen-inheritance-casting.html
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[extends-attr]: https://rustwasm.github.io/wasm-bindgen/reference/attributes/on-js-imports/extends.html
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[#662]: https://github.com/rustwasm/wasm-bindgen/pull/662
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--------------------------------------------------------------------------------
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## 0.2.15
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Released 2018-07-26.
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### Fixed
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* Fixed `wasm-bindgen` CLI version mismatch checks that got broken in the last
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point release.
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--------------------------------------------------------------------------------
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## 0.2.14
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Released 2018-07-25.
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### Fixed
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* Fixed compilation errors on targets that use
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Mach-O. [#545](https://github.com/rustwasm/wasm-bindgen/issues/545)
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--------------------------------------------------------------------------------
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## 0.2.13
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Released 2018-07-22.
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### Added
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* Support the `#[wasm_bindgen(js_name = foo)]` attribute on exported functions
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and methods to allow renaming an export to JS. This allows JS to call it by
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one name and Rust to call it by another, for example using `camelCase` in JS
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and `snake_case` in Rust
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### Fixed
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* Compilation with the latest nightly compiler has been fixed (nightlies on and
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after 2018-07-21)
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--------------------------------------------------------------------------------
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## 0.2.12
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Released 2018-07-19.
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This release is mostly internal refactorings and minor improvements to the
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existing crates and functionality, but the bigs news is an upcoming `js-sys` and
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`web-sys` set of crates. The `js-sys` crate will expose [all global JS
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bindings][js-all] and the `web-sys` crate will be generated from WebIDL to
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expose all APIs browsers have. More info on this soon!
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[js-all]: https://github.com/rustwasm/wasm-bindgen/issues/275
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### Added
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* Support for `Option<T>` was added where `T` can be a number of slices or
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imported types.
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* Comments in Rust are now preserved in generated JS bindings, as well as
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comments being generated to indicate the types of arguments/return values.
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* The online documentation has been reorganized [into a book][book].
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* The generated JS is now formatted better by default for readability.
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* A `--keep-debug` flag has been added to the CLI to retain debug sections by
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default. This happens by default when `--debug` is passed.
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[book]: https://rustwasm.github.io/wasm-bindgen/
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### Fixed
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* Compilation with the latest nightly compiler has been fixed (nightlies on and
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after 2018-07-19)
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* Declarations of an imported function in multiple crates have been fixed to not
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conflict.
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* Compilation with `#![deny(missing_docs)]` has been fixed.
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--------------------------------------------------------------------------------
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## 0.2.11
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Released 2018-05-24.
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--------------------------------------------------------------------------------
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## 0.2.10
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Released 2018-05-17.
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--------------------------------------------------------------------------------
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## 0.2.9
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Released 2018-05-11.
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