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dart / sdk / 0687036cb9cc295ab74fad4f2de8547ca4b2cac1
commit0687036cb9cc295ab74fad4f2de8547ca4b2cac1[log] [tgz]
authorChloe Stefantsova <cstefantsova@google.com>Thu Jul 24 05:51:00 2025 -0700
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Jul 24 05:51:00 2025 -0700
treebc63d207a6ee23a0c469194b09dc5236eae66c72
parentb1af1bdd0a245fa4b5787c6ada3eba6e6bd825eb [diff]
[model] Share greatest and lowest closure of type schema

The algorithms for computing the greatest and lowest closures of a
type schema are shared between the Analyzer and the CFE. As a
work-around for the discrepancy between the behavior of the tools, the
interface of the greatest closure computation accepts the top type to
be used as one of its parameters.

Part of https://github.com/dart-lang/sdk/issues/54902

Change-Id: I378c562c39078b20c48015cdf44eb652c8d4c000
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/438660
Reviewed-by: Paul Berry <paulberry@google.com>
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
13 files changed
tree: bc63d207a6ee23a0c469194b09dc5236eae66c72
  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.