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dart / sdk / 6e53ac6e4c7b3d94de5ee0370a538b03dafded1c
commit6e53ac6e4c7b3d94de5ee0370a538b03dafded1c[log] [tgz]
authorAlexander Markov <alexmarkov@google.com>Thu Apr 02 01:39:10 2020 +0000
committercommit-bot@chromium.org <commit-bot@chromium.org>Thu Apr 02 01:39:10 2020 +0000
treeff18af078691854401ccb85e56d18b61046541af
parent0e8ee2b668c27cee6708c4ab800acb0f2b598b44 [diff]
[vm/nnbd] Fix supertype check in GenerateSubtype1TestCacheLookup

Before calling Subtype1TestCache stub, there was a quick check if
supertype's class id matches tested class id.
Null extends Object, so supertype of Null matches Object.
However, in NNBD strong mode Null is not assignable to Object.

Fixes https://github.com/dart-lang/sdk/issues/41272

Change-Id: Icc3efaf90992b5083cbe086af81db7504724b855
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142085
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
6 files changed
tree: ff18af078691854401ccb85e56d18b61046541af
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. client/
  6. docs/
  7. pkg/
  8. runtime/
  9. samples/
  10. samples-dev/
  11. sdk/
  12. sdk_nnbd/
  13. tests/
  14. third_party/
  15. tools/
  16. utils/
  17. .clang-format
  18. .gitattributes
  19. .gitconfig
  20. .gitignore
  21. .gn
  22. .mailmap
  23. .packages
  24. .style.yapf
  25. .vpython
  26. AUTHORS
  27. BUILD.gn
  28. CHANGELOG.md
  29. codereview.settings
  30. CONTRIBUTING.md
  31. DEPS
  32. LICENSE
  33. PATENT_GRANT
  34. PRESUBMIT.py
  35. README.dart-sdk
  36. README.md
  37. sdk_args.gni
  38. WATCHLISTS
README.md

Dart

A client-optimized language for fast apps on any platform

Dart is:

  • Optimized for UI: Develop with a programming language specialized around the needs of user interface creation

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app

  • Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web

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 the dart.dev to learn more about the language, tools, getting started, and more.

Browse pub.dev for more packages and libraries contributed by the community and the Dart team.

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.