[co19] Roll co19 to ffd6f44bfcbed7ff58a6b204d5ba33fe4394f274 2026-03-20 sgrekhov22@gmail.com Fixes dart-lang/co19#3682. Fix roll failures (dart-lang/co19#3683) 2026-03-20 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 19. (dart-lang/co19#3680) 2026-03-19 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 18. (dart-lang/co19#3679) 2026-03-19 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 17. (dart-lang/co19#3678) 2026-03-19 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 16. (dart-lang/co19#3677) 2026-03-19 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 15. (dart-lang/co19#3676) 2026-03-19 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 12. (dart-lang/co19#3673) 2026-03-19 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 13. (dart-lang/co19#3674) 2026-03-19 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 14. (dart-lang/co19#3675) 2026-03-18 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 11. (dart-lang/co19#3672) 2026-03-18 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 10. (dart-lang/co19#3671) 2026-03-17 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 9. (dart-lang/co19#3670) 2026-03-17 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 8. (dart-lang/co19#3669) 2026-03-17 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 7. (dart-lang/co19#3668) 2026-03-17 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 6. (dart-lang/co19#3667) 2026-03-17 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 5. (dart-lang/co19#3666) 2026-03-16 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 4. (dart-lang/co19#3665) 2026-03-16 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 2. (dart-lang/co19#3663) 2026-03-16 sgrekhov22@gmail.com dart-lang/co19#3182. Add tests for augmenting of `new` and `factory` constructors (dart-lang/co19#3634) 2026-03-16 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 3. (dart-lang/co19#3664) 2026-03-16 sgrekhov22@gmail.com dart-lang/co19#3315. Fix tests that use obsolete `var` syntax. Part 1. (dart-lang/co19#3662) 2026-03-16 sgrekhov22@gmail.com dart-lang/co19#3182. Add tests for static abstract declarations. Part 2. (dart-lang/co19#3642) 2026-03-16 sgrekhov22@gmail.com dart-lang/co19#3641. Add more tests for permitted use of type `void`. Part 3. (dart-lang/co19#3655) 2026-03-14 sgrekhov22@gmail.com dart-lang/co19#3203. Add tests for a primary constructor with a body (dart-lang/co19#3660) 2026-03-13 sgrekhov22@gmail.com dart-lang/co19#3315. Add some missing cases to primary constructors tests (dart-lang/co19#3661) 2026-03-13 sgrekhov22@gmail.com dart-lang/co19#3641. Add more tests for permitted use of type `void` (dart-lang/co19#3647) R=athom@google.com, eernst@google.com Cq-Include-Trybots: luci.dart.try:analyzer-linux-release-try,dart2js-minified-linux-d8-try Change-Id: If777a9880b4f7413b0815da684b7c92258b819b6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/489860 Reviewed-by: Erik Ernst <eernst@google.com> Commit-Queue: Alexander Thomas <athom@google.com> Auto-Submit: Sergey Grekhov <sgrekhov22@gmail.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.