Google Git
Sign in
dart / sdk.git / 7cc005ea1a4ca2b7d245023d15f3e5055e6ae314
commit7cc005ea1a4ca2b7d245023d15f3e5055e6ae314[log] [tgz]
authorTess Strickland <sstrickl@google.com>Mon Jul 03 14:52:19 2023 +0000
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Mon Jul 03 14:52:19 2023 +0000
treece92bfeb2000b728550c3b1c3dc6739e58af25b7
parenta3e84160ec317c692ae90f1c6f7150be6385aca6 [diff]
[vm] Make Class::RareType() the instantiated to bounds type.

Previously, Class::RareType() returned a Type where the type arguments
were null (e.g., all dynamic). However, this is an invalid type for
classes that have at least one type parameter with a bound that is not a
top type, and could mean that comparisons (such as subtyping) against
the "rare" type could return incorrect answers.

Instead, use TypeParameters::defaults() to get the canonicalized
instantiated to bounds type argument vector and use that instead.

TEST=ci

Cq-Include-Trybots: luci.dart.try:vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-linux-debug-x64-try,vm-linux-release-x64-try
Change-Id: Iea591e93102f53713265b481476f9670cfb81c93
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/312261
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
3 files changed
tree: ce92bfeb2000b728550c3b1c3dc6739e58af25b7
  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. .vpython
  22. AUTHORS
  23. BUILD.gn
  24. CHANGELOG.md
  25. codereview.settings
  26. CONTRIBUTING.md
  27. DEPS
  28. LICENSE
  29. OWNERS
  30. PATENT_GRANT
  31. PRESUBMIT.py
  32. README.dart-sdk
  33. README.md
  34. sdk.code-workspace
  35. sdk_args.gni
  36. SECURITY.md
  37. 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 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.