[co19] Roll co19 to a9baeb708434b8a96502a62ba7fd2ec7c67b408f 2026-02-06 sgrekhov22@gmail.com Fixes dart-lang/co19#3604. Update expected errors locations for CFE (dart-lang/co19#3605) 2026-02-05 sgrekhov22@gmail.com dart-lang/co19#3595. Add dot-shorthands tests for private members (dart-lang/co19#3600) 2026-02-05 sgrekhov22@gmail.com dart-lang/co19#3595. Add tests for private class-like declarations (dart-lang/co19#3599) 2026-02-05 sgrekhov22@gmail.com dart-lang/co19#3182. Add tests checking that typedef cannot be augmented (dart-lang/co19#3601) 2026-02-04 sgrekhov22@gmail.com Fixes dart-lang/co19#3597. Fix typos in `static_processing_A10_t0*.dart` (dart-lang/co19#3598) 2026-02-04 sgrekhov22@gmail.com Fixes dart-lang/co19#3574. Update expected error location in `static_processing_A03_t02.dart` (dart-lang/co19#3596) 2026-02-03 sgrekhov22@gmail.com dart-lang/co19#3182. Update/add augmentations tests (dart-lang/co19#3592) 2026-02-03 sgrekhov22@gmail.com Fixes dart-lang/co19#3593. Update expected result in `static_processing_A06_t02.dart` (dart-lang/co19#3594) 2026-02-03 sgrekhov22@gmail.com Fixes dart-lang/co19#3590. Update expected result in `static_processing_A19_t02.dart` (dart-lang/co19#3591) 2026-02-02 sgrekhov22@gmail.com dart-lang/co19#3182. Update `metadata_*`, add missing cases (dart-lang/co19#3589) 2026-02-02 sgrekhov22@gmail.com Fixes dart-lang/co19#3583. Update expected error location in semantics_A03_t06.dart (dart-lang/co19#3586) 2026-02-02 sgrekhov22@gmail.com Fixes dart-lang/co19#3581. Fix typos in private_named_parameters_t01.dart (dart-lang/co19#3584) 2026-02-02 sgrekhov22@gmail.com Fixes dart-lang/co19#3582. Fix typo in private_named_parameters_t02.dart (dart-lang/co19#3585) 2026-02-02 sgrekhov22@gmail.com dart-lang/co19#3182. Update `augmenting_constructors_*` tests (dart-lang/co19#3588) 2026-02-01 49699333+dependabot[bot]@users.noreply.github.com Bump the github-actions group with 2 updates (dart-lang/co19#3587) 2026-01-30 sgrekhov22@gmail.com dart-lang/co19#3182. Fix typos in `augmenting_enums_A05_t*`, add new test (dart-lang/co19#3580) R=athom@google.com, eernst@google.com Cq-Include-Trybots: luci.dart.try:analyzer-linux-release-try,dart2js-minified-linux-d8-try Change-Id: Ifd976ff37ad6747758633a8a172198b69bb89c68 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/478662 Commit-Queue: Alexander Thomas <athom@google.com> Auto-Submit: Sergey Grekhov <sgrekhov22@gmail.com> Reviewed-by: Erik Ernst <eernst@google.com> Reviewed-by: Alexander Thomas <athom@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.