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dart / sdk / 43206b1d9a1fd3b019d6da1638d7651eb642339a
commit43206b1d9a1fd3b019d6da1638d7651eb642339a[log] [tgz]
authorPaul Berry <paulberry@google.com>Sat Jan 22 17:05:18 2022 +0000
committerCommit Bot <commit-bot@chromium.org>Sat Jan 22 17:05:18 2022 +0000
tree258d8ac513da6ce31d74173495baa7946e67ecc8
parentae7cfcf99dbba7a89716181b45ef00196837ee0d [diff]
Stop calling InferenceContext.getContext() from migration tool.

In a follow CL, I'm planning to try to pass inference contexts around
on the stack rather than using static calls to InferenceContext.  This
should be both more performant (since it will use less memory and
won't require map lookups) and easier to debug.  To prepare for this I
want to get rid of migration engine's use of
InferenceContext.getContext().

It turns out that the only contexts needed by the migration engine
were (a) the context of an expression passed to
modifyExpressionType(), and (b) the context of any binary `??`
expressions that are its parent.  I've addressed (a) by passing the
context as a parameter to modifyExpressionType(), and I've addressed
(b) by creating an additional hook that records the context of any
binary expression at the time it is entered.

Change-Id: Ic844d40b5323fcee2ec8bde052449cbe9d878cc4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/229361
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
4 files changed
tree: 258d8ac513da6ce31d74173495baa7946e67ecc8
  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. .packages
  23. .style.yapf
  24. .vpython
  25. AUTHORS
  26. BUILD.gn
  27. CHANGELOG.md
  28. codereview.settings
  29. CONTRIBUTING.md
  30. DEPS
  31. LICENSE
  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.