Paul Berry bd0b10802b Bump infra packages to language version 3.12.
This CL is part of an effort to bump the SDK requirement to `3.12.0-0`
for all the packages in `pkg` that are not published to `pub`, so that
we can get better testing of the "private named parameters" feature.

(Packages that *are* published to `pub` can't be safely bumped yet,
because SDK 3.12 hasn't been released, and I don't want to block those
packages' ability to publish useful updates to customers.)

This change covers the following packages, which are owned by
OWNERS_INFRA:
- pkg/smith
- pkg/status_file
- pkg/test_runner

Changes to `pubspec.yaml` files were made manually.

Changes to `.dart` files were made automatically (with some
exceptions), using `dart fix` to migrate to using private named
parameters where it is possible to do so without changing
semantics. Note that this migration is conservative; see
https://github.com/dart-lang/sdk/issues/58607 for details.

The exceptions are:
- pkg/test_runner/lib/src/compiler_configuration.dart
- pkg/test_runner/lib/src/path.dart

These files contained code that triggered the
`use_null_aware_elements` lint, so I manually fixed the instances of
the lint. (The lint didn't previously fire because the test runner
used to be on language version 3.5.0, which was before the "null aware
elements" feature existed.)

Change-Id: Ia5d99ba5fc2d5aacbec5b091348be1d26a6a6964
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/487882
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2026-03-16 10:32:47 -07:00
2026-02-19 13:25:23 -08:00
2026-03-10 13:37:52 -07:00
2026-02-20 05:35:13 -08:00
2023-11-10 19:23:11 +00:00
2026-03-04 18:41:25 -08:00
2025-03-10 03:22:36 -07:00

Dart

An approachable, portable, and productive language for high-quality apps on any platform

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 platforms illustration

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.

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