Store compilation unit NNBD status in unlinked summary.

This is needed for two reasons:

1. Summary linking, because type inference needs to behave differently
for opted-in vs. opted-out libraries.

2. Summary resynthesis, because TypeParameterElement.type needs to
behave differently for opted-in vs. opted-out libraries.

Note that reason 1 won't apply to the summary2 mechanism, because it
has access to full ASTs when doing type inference.  But it will still
need to record compilation unit NNBD status for reason 2.

This CL merely stores the correct data in the summary; it doesn't
address resynthesis, linking, or summary2.

Change-Id: I1aa2226e5865ef76747267de6198223997d6ad0d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/101920
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
6 files changed
tree: 42be810749428a9d3a69f0b3582946d217fc8539
  1. .github/
  2. build/
  3. client/
  4. docs/
  5. pkg/
  6. runtime/
  7. samples/
  8. samples-dev/
  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. .packages
  21. .vpython
  22. AUTHORS
  23. BUILD.gn
  24. CHANGELOG.md
  25. codereview.settings
  26. CONTRIBUTING.md
  27. DEPS
  28. LICENSE
  29. PATENTS
  30. PRESUBMIT.py
  31. README.dart-sdk
  32. README.md
  33. WATCHLISTS
README.md

Dart

Dart is an open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps.

Using Dart

Visit the dartlang.org to learn more about the language, tools, getting started, and more.

Browse pub.dartlang.org for more packages and libraries contributed by the community and the Dart team.

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.

License & patents

See LICENSE and PATENTS.