[vm] Support redirecting external const factories

This CL introduces the first combination of `external const factory`
with `@patch const factory (.*) = (.*)`. This specific combination was
never used in the core libraries, and did not work.

Half of the fix is a missing flag from the CFE:
https://dart-review.googlesource.com/c/sdk/+/187440

The other half of the fix is matching on the
kRedirectingFactoryConstructor tag, and allowing constructor names
in procedure targets (even though we never compile those expressions
because they are invalid).

Bug: https://github.com/dart-lang/sdk/issues/45101

TEST=Using redirecting const factory in patch file in core lib.
TEST=tests/ffi(_2)/*

Change-Id: I5524bde928290bf32aaea9170eda1f2d03127fa6
Cq-Include-Trybots: luci.dart.try:benchmark-linux-try,front-end-linux-release-x64-try,vm-kernel-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/187003
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
8 files changed
tree: 807d9b685fc4d3c2c81cf88f587af51a6be913da
  1. .clang-format
  2. .dart_tool/
  3. .gitattributes
  4. .gitconfig
  5. .github/
  6. .gitignore
  7. .gn
  8. .mailmap
  9. .packages
  10. .style.yapf
  11. .vpython
  12. AUTHORS
  13. BUILD.gn
  14. CHANGELOG.md
  15. CONTRIBUTING.md
  16. DEPS
  17. LICENSE
  18. PATENT_GRANT
  19. PRESUBMIT.py
  20. README.dart-sdk
  21. README.md
  22. WATCHLISTS
  23. benchmarks/
  24. build/
  25. client/
  26. codereview.settings
  27. docs/
  28. pkg/
  29. runtime/
  30. samples-dev/
  31. samples/
  32. samples_2/
  33. sdk/
  34. sdk_args.gni
  35. tests/
  36. third_party/
  37. tools/
  38. utils/
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.