Google Git
Sign in
dart / sdk / 770f44d4e9ffe2abf4c27bc0969c6708c54a9b65
commit770f44d4e9ffe2abf4c27bc0969c6708c54a9b65[log] [tgz]
authorBrian Quinlan <bquinlan@google.com>Fri Feb 16 20:06:03 2024 +0000
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Feb 16 20:06:03 2024 +0000
treefb55bd621ff59a91e52f69eb981d66797b2247a9
parent7b63c20fba83668401aedda0045a5aa2ab952882 [diff]
[io] Make it possible to change the line ending output by `stdout` and `stderr`.

There is a performance impact in:
`stdout.lineTerminator = "\r\n";`

For small writes (<100 chars), the performance loss is lost in the noise of the `write` system call.

For writes of ~500 chars, the performance is about half of that without line terminator translation. But, on a M2 Mac laptop, ~80M characters can be written per second.

Bug: https://github.com/dart-lang/sdk/issues/53161
Change-Id: Icfa0f981dcf6edb856d8aac5e0e270bc0148d498
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/326761
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Lasse Nielsen <lrn@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Ömer Ağacan <omersa@google.com>
Reviewed-by: Brian Quinlan <bquinlan@google.com>
Commit-Queue: Brian Quinlan <bquinlan@google.com>
5 files changed
tree: fb55bd621ff59a91e52f69eb981d66797b2247a9
  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. README.dart-sdk
  32. README.md
  33. sdk.code-workspace
  34. sdk_args.gni
  35. SECURITY.md
  36. 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 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.