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dart / sdk / 278815b192e6cb986ee9ef77c99788819a43e02f
commit278815b192e6cb986ee9ef77c99788819a43e02f[log] [tgz]
authorMayank Patke <fishythefish@google.com>Tue Oct 25 19:24:19 2022 +0000
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Oct 25 19:24:19 2022 +0000
tree192785a4078412ea8021485d6a29d2fc15231007
parent053c633d0b281e24f38ebd9100a32781ab986180 [diff]
[dart2js] Add abstract value domain to distinguish uncomputed values.

Normal dart2js invocations will continue using the existing abstract
value domains with `emptyType` as the initial type for type graph nodes.

When an appropriate debug flag is passed, all abstract values will be
wrapped so that the underlying empty type is only used when a value is
known to be empty. Abstract values which have not yet been computed will
print as "[uncomputed]" in order to aid in debugging but will otherwise
behave like the empty type during type graph construction.

Change-Id: I1ec41e42e8b566a0a6bfe969c2ff96f4e53d5f4e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/243844
Commit-Queue: Mayank Patke <fishythefish@google.com>
Reviewed-by: Stephen Adams <sra@google.com>
13 files changed
tree: 192785a4078412ea8021485d6a29d2fc15231007
  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_args.gni
  35. SECURITY.md
  36. 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.