Google Git
Sign in
dart / sdk / eb7dc8494a88f479a752531dda0104a3339092a7
commiteb7dc8494a88f479a752531dda0104a3339092a7[log] [tgz]
authorNate Biggs <natebiggs@google.com>Thu Jun 15 21:58:34 2023 +0000
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Jun 15 21:58:34 2023 +0000
tree5f3b147d4048a860f292fd595fb5bed515efa72b
parentbe125afc180e7fb28ff7cba9108d0a359d771d60 [diff]
[dart2js] Fix event log init logic.

The bug can be occur when 2 Dart2JS apps load on the same page but 1 uses a version of the Dart2JS runtime prior to https://dart-review.googlesource.com/c/sdk/+/309361 and the other uses the runtime from after 309361. If the one from before 309361 loads onto the page first, the `$__dart_deferred_initializers__` will be initialized without `eventLog`. Then the second app will load and see that `$__dart_deferred_initializers__` is present and try to add to `eventLog`, but `eventLog` will not be present.

This would cause an exception in the Dart2JS runtime and probably prevent the page form loading correctly.

Change-Id: I05b17867e24ae80cb4d7cdc615c8b985321912f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/309761
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Nate Biggs <natebiggs@google.com>
3 files changed
tree: 5f3b147d4048a860f292fd595fb5bed515efa72b
  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.