| commit | ac6588ba603278d0e69b58253120c1b76a573a71 | [log] [tgz] |
|---|---|---|
| author | Srujan Gaddam <srujzs@google.com> | Thu Aug 08 16:12:17 2024 +0000 |
| committer | Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> | Thu Aug 08 16:12:17 2024 +0000 |
| tree | 8415985d1fab5598cb6aaf44b87ebd79483a2a04 | |
| parent | d8a8e2cb03c9fef4a3016333b15ea1a1f895b9d2 [diff] |
[dart2wasm] Optimize dartify type-checks dartifyRaw type-checks are currently a bunch of if cases where the check is done in JS. Instead of going back and forth between runtimes, we can do the checks in JS and return an enum value. - Replaces the if cases with a externRefType method that returns an integer that maps to some static const values. Dart enums are slower so consts are preferred. Speeds up type-checks by 4-5x and dartifyRaw by 1.1-1.8x for common types using some quick local benchmarks. Also moves the array check up as it's more common and groups the typed array checks together. - Reuses the externRefType helper in dartify so we don't type-check the same value twice. - Moves some tests from basic_test.dart to jsify_dartify_test.dart and adds more type-checks, casts to assert types, cleans up property getters, and adds a few missing cases. Change-Id: Ia5fb9bfef6f9e212ea8da27362b0b4efb4cbf2fa Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/379144 Commit-Queue: Srujan Gaddam <srujzs@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
Dart is:
Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.
Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.
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:
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.
Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).
Dart is free and open source.
See LICENSE and PATENT_GRANT.
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).
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.
The easiest way to contribute to Dart is to file issues.
You can also contribute patches, as described in Contributing.
Future plans for Dart are included in the combined Dart and Flutter roadmap on the Flutter wiki.