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dart / sdk / 6cea1790bd80ab8c4568939371b14b0c7e64e9c4
commit6cea1790bd80ab8c4568939371b14b0c7e64e9c4[log] [tgz]
authorPaul Berry <paulberry@google.com>Tue May 13 06:10:25 2025 -0700
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue May 13 06:10:25 2025 -0700
tree0947f88a16b81e126a781a65d537a5e99a7a495c
parent3b553b3c4b5d8e79c6cd8d2f57b7a53cc5f06038 [diff]
[flow analysis] Fix invalid type of interest promotion.

This change closes a loophole whereby it was possible for "type of
interest" promotion to promote to a type that was not a subtype of the
declared type.

I've gone ahead and included more extensive tests (both in unit test
and language test form) of demotion and type of interest promotion, to
try to make sure there aren't other loopholes.

Fixes https://github.com/dart-lang/sdk/issues/60620.

Bug: https://github.com/dart-lang/sdk/issues/60620
Change-Id: Ifef04cde6fda2aee80ec002c7ca04f2be6cff987
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/427920
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
3 files changed
tree: 0947f88a16b81e126a781a65d537a5e99a7a495c
  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. pubspec.yaml
  32. README.dart-sdk
  33. README.md
  34. sdk.code-workspace
  35. sdk_args.gni
  36. sdk_packages.yaml
  37. SECURITY.md
  38. 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 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.