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dart / sdk.git / 6849d737a6c304b8de34fd34fa9fef49321d988b
commit6849d737a6c304b8de34fd34fa9fef49321d988b[log] [tgz]
authorJohnni Winther <johnniwinther@google.com>Sat Feb 06 08:11:16 2021 +0000
committercommit-bot@chromium.org <commit-bot@chromium.org>Sat Feb 06 08:11:16 2021 +0000
treedd5991eab264f83ba6e22e1032ec556d37de3acf
parent2e3ac0cf154ab0387fc6b8859480a0a27a67fcb3 [diff]
Reland: [dart2js] Refactor closure data to use AST nodes instead of locals

This CL avoids creating locals using KernelToLocalsMap when computing
closure data for the J-model. Instead the closure data uses
ir.VariableDeclaration, JTypeVariable, and internal locals (ThisLocal
and BoxLocal) internally, and the accessor function require passes
a KernelToLocalsMap to convert the internal model to a Locals upon use.
The converted Locals are cached internal for performance only.

This prepares for splitting the GlobalLocalsMap and KernelToLocalsMap
from the JClosedWorld.

Previously landed in https://dart-review.googlesource.com/c/sdk/+/180820
but reverted.

Change-Id: Ic6a2ab63de7cb31c89dd50ca2af3f205a792fd74
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/183000
Reviewed-by: Sigmund Cherem <sigmund@google.com>
16 files changed
tree: dd5991eab264f83ba6e22e1032ec556d37de3acf
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. client/
  6. docs/
  7. pkg/
  8. runtime/
  9. samples/
  10. samples-dev/
  11. samples_2/
  12. sdk/
  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 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.