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dart / sdk / acd2ad41b66187564b65d93cd70538c01727c720
commitacd2ad41b66187564b65d93cd70538c01727c720[log] [tgz]
authorNate Biggs <natebiggs@google.com>Fri Jul 14 20:46:17 2023 +0000
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Jul 14 20:46:17 2023 +0000
treefb6321396102cbeb631ee0205f6b8ff347271f2e
parent34f0e26d45360a80430441ee8e3d60336c059717 [diff]
[dart2js] Union old and new type when refining in type inference.

This change doesn't seem to have a significant impact on most compilation results:
- Golem results show no significant difference in microbenchmarks.
- For a medium and large app tested, while we see a small change in the actual inference results, the generated code is identical before/after this change.
- Timing and memory usage on internal compilations seem comparable before/after this change.

Note: This replaces the need for any notion of "invalid" refines so I will clean up that code in a follow up change.

Change-Id: I2a293eacd944fc17ee2dab97d3d947c042b4038f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/313720
Commit-Queue: Nate Biggs <natebiggs@google.com>
Reviewed-by: Mayank Patke <fishythefish@google.com>
3 files changed
tree: fb6321396102cbeb631ee0205f6b8ff347271f2e
  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.