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dart / sdk.git / 1b075fb407a71b97b0659128b8ca0d09d07dfd02
commit1b075fb407a71b97b0659128b8ca0d09d07dfd02[log] [tgz]
authorPaul Berry <paulberry@google.com>Fri May 10 15:42:51 2024 +0000
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri May 10 15:42:51 2024 +0000
tree3f559e899a3d982e5cd08c530df0ee4feba107e9
parent3a35eeac889d8f29518660a7d0bdf172e1b49909 [diff]
Mini_types: rework representation of nullability to match analyzer.

The "mini_types" representation (used for unit testing of shared flow
analysis and type analysis code) is reworked so that it represents
nullabilities in the same way as the analyzer (and in a more similar
way to the CFE), namely: each type has a field `nullabilitySuffix`
indicating whether the type is followed by `?`, `*`, or neither.

This change ensures that `is` and `as` tests using the mini_types
representation (e.g. `is FunctionType`) will behave the same way as
they ehave in the analyzer and CFE; this in turn should lead to
additional opportunities to share code between the analyzer and CFE.

Change-Id: Ia5d963eb96e225e62df71a406d4024053311df88
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/365700
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
3 files changed
tree: 3f559e899a3d982e5cd08c530df0ee4feba107e9
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  9. sdk/
  10. tests/
  11. third_party/
  12. tools/
  13. utils/
  14. .clang-format
  15. .gitattributes
  16. .gitconfig
  17. .gitignore
  18. .gn
  19. .mailmap
  20. .style.yapf
  21. AUTHORS
  22. BUILD.gn
  23. CHANGELOG.md
  24. codereview.settings
  25. CONTRIBUTING.md
  26. DEPS
  27. LICENSE
  28. OWNERS
  29. PATENT_GRANT
  30. PRESUBMIT.py
  31. README.dart-sdk
  32. README.md
  33. sdk.code-workspace
  34. sdk_args.gni
  35. sdk_packages.yaml
  36. SECURITY.md
  37. WATCHLISTS
README.md

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 on our wiki.

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.