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dart / sdk / af4da780be986e9aad22ab18395f1548ac1d1937
commitaf4da780be986e9aad22ab18395f1548ac1d1937[log] [tgz]
authorAlexander Markov <alexmarkov@google.com>Thu Jun 02 23:39:45 2022 +0000
committerCommit Bot <commit-bot@chromium.org>Thu Jun 02 23:39:45 2022 +0000
treeaced7dfcba2076a6092ce9006b706e2e11e97b0f
parent8f9e40b8157285da4af5a792561dd649e673194a [diff]
[vm] New async/async* implementation in JIT mode

The new implementation is based on suspend/resume stubs and doesn't
use desugaring of async functions on kernel AST.

Previously, new implementation of async/async* was only supported in
AOT mode. This change adds all necessary bits for the JIT mode:

 * Suspending variable-length frames (for unoptimized code).
 * Handling of Code and pool pointers in Dart stack frames.
 * OSR.
 * Deoptimization.
 * Hot reload.
 * Debugger.

The new implementation is not enabled in JIT mode yet.

Design doc: go/compact-async-await.
TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I477d6684bdce7cbc1edb179ae2271ff598b7dcc5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246081
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
61 files changed
tree: aced7dfcba2076a6092ce9006b706e2e11e97b0f
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  9. samples-dev/
  10. samples_2/
  11. sdk/
  12. tests/
  13. third_party/
  14. tools/
  15. utils/
  16. .clang-format
  17. .gitattributes
  18. .gitconfig
  19. .gitignore
  20. .gn
  21. .mailmap
  22. .style.yapf
  23. .vpython
  24. AUTHORS
  25. BUILD.gn
  26. CHANGELOG.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. DEPS
  30. LICENSE
  31. OWNERS
  32. PATENT_GRANT
  33. PRESUBMIT.py
  34. README.dart-sdk
  35. README.md
  36. sdk_args.gni
  37. SECURITY.md
  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 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.