Revert "[cfe] Use `void` for let-expressions for extension property set"

This reverts commit a5fda592195b0bc42cadf1669df04502912c053c.

Reason for revert: breaks calling extension setters with `?.`, see b/241059207

Original change's description:
> [cfe] Use `void` for let-expressions for extension property set
>
> This pipes the expression type for a generated property setter, such
> that synthesized variables in let expressions created for the generated
> setter expression are typed correctly.
>
> Before this change a let variable created for an extension property set
> would use the value type even though the extension property setter is
> method with a void return type.
>
> Change-Id: I1e7d31eaf1410bb06d55e2845403865e0c7af452
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/252742
> Commit-Queue: Johnni Winther <johnniwinther@google.com>
> Reviewed-by: Aske Simon Christensen <askesc@google.com>

TBR=johnniwinther@google.com,askesc@google.com

Change-Id: Iaafd12833939cbd38e09787fcdb5a4c78a964656
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/253440
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Ilya Yanok <yanok@google.com>
Reviewed-by: Ilya Yanok <yanok@google.com>
80 files changed
tree: e4e05bfa28f498dc53a3860562220321dded479c
  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. .style.yapf
  23. .vpython
  24. AUTHORS
  25. BUILD.gn
  26. CHANGELOG.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. DEPS
  30. LICENSE
  31. OWNERS
  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.