Martin Kustermann
2d78883f27
Right now a JS interop callback works like this: * Each wasm module that gets instantiated will be given it's module instance (JS calls Dart to set it) via `setThisModule` * When Dart code calls JS and gives it a callback to invoke, it gave it this module instance. It will also make the callback wasm function weakly exported. * The JS trampoline code, when invoked, would then call the weakly exported wasm function from the module instance. We simplify this now by making the Dart code simply give the wasm function reference to JS, then JS can later on invoke it. No need to weakly export a function and call back via `module.exports.<weaklyExportedCallback>` To ensure binaryen is aware that the wasm function may be called from JS, we annotate it via the `(@binaryen.js.called)` annotation. Change-Id: I828dd0cf8d3b36db338792c4e277a4bb94c76faf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/511080 Commit-Queue: Martin Kustermann <kustermann@google.com> Reviewed-by: Srujan Gaddam <srujzs@google.com>
Dart
An approachable, portable, and productive language for high-quality apps on any platform
Dart is:
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Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.
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Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.
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Productive: Make changes iteratively: use hot reload to see the result instantly in your running app. Diagnose app issues using DevTools.
Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:
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Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.
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Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).
License & patents
Dart is free and open source.
See LICENSE and PATENT_GRANT.
Using Dart
Visit dart.dev to learn more about the language, tools, and to find codelabs.
Browse pub.dev for more packages and libraries contributed by the community and the Dart team.
Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).
Building Dart
If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.
There are more documents in our repo at docs.
Contributing to Dart
The easiest way to contribute to Dart is to file issues.
You can also contribute patches, as described in Contributing.
Roadmap
Future plans for Dart are included in the combined Dart and Flutter roadmap on the Flutter wiki.