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dart / sdk / base
commit0507f059ee3cfabb4dae28a90e7f5970d653995e[log] [tgz]
authorNate Biggs <natebiggs@google.com>Thu Nov 06 20:49:28 2025 -0800
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Nov 06 20:49:28 2025 -0800
tree4115c97f087c10e69d9498bde9c113563397a85b
parente94ccebe8aee6b3eb910e5c884bc8626084014d8 [diff]
[dart2js] Fix error when comparing constants referenced across deferred import boundaries.

Constant folding was considering strings (or other primitives) unequal if one of them was a DeferredGlobalConstantValue and the other was not. This was producing incorrect results in the cases where the underlying constants were in fact equal.

For the purposes of constant folding equality checks, we should just ignore the deferred boundary and compare the constants themselves.

Fixes: https://github.com/dart-lang/sdk/issues/61833
Change-Id: Ibbd950ae910ee2377353f5fae8d9bea5c64d9d84
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/460020
Commit-Queue: Nate Biggs <natebiggs@google.com>
Reviewed-by: Mayank Patke <fishythefish@google.com>
3 files changed
tree: 4115c97f087c10e69d9498bde9c113563397a85b
  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.