Add support for keeping parser diagnostic expectations in the source snippets they describe. Expectations are written as caret markers and diagnostic comments, and regenerated from the parser's actual diagnostics before comparison. This keeps parser recovery expectations close to the code under test and removes the need to maintain offset-based `assertErrors` lists by hand. The updater also removes existing expectation markers before writing the canonical form, so marked snippets can be refreshed in place. Migrate recovery parser and class parser tests to the new `assertExpectedDiagnostics` helper, including no-error cases where an unmarked snippet is the expected canonical form. Update `test_runner` to exclude `/pkg/analyzer/` from searching static error expectations. Bug: https://github.com/dart-lang/sdk/issues/63335 Change-Id: Ic9866da8cc601c6b360552ba576e8aa1646f89a5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/501340 Commit-Queue: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Bob Nystrom <rnystrom@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.