[vm,dyn_modules] Handle re-resolving implicit closures after reload.

In compiled code, calls to implicit closures after reload are
re-resolved when the code for the implicit closure function is
recompiled. However, there is no recompilation step for bytecode.

Instead, mark any old implicit closure functions and check for this
mark in the interpreter when executing one of the internal implicit
closure bytecodes. If marked, the interpreter calls the runtime to
perform the re-resolution. If the new implicit closure function is
compatible with the arguments of the old one, it is used instead,
otherwise the runtime call returns an array of arguments that the
interpreter can use to throw an appropriate NoSuchMethod error.

TEST=vm/cc/IsolateReload_TearOff

Cq-Include-Trybots: luci.dart.try:vm-dyn-linux-debug-x64-try,vm-dyn-mac-debug-arm64-try
Change-Id: Ib016cf6a7ca7388d7e20062c212148a5f69fadec
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/558860
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
10 files changed
tree: bd5823b62d39d30ea115763a6e39b5cd95f2e4f9
  1. .agents/
  2. .dart_tool/
  3. .github/
  4. benchmarks/
  5. build/
  6. docs/
  7. pkg/
  8. runtime/
  9. samples/
  10. sdk/
  11. tests/
  12. third_party/
  13. tools/
  14. utils/
  15. .clang-format
  16. .gitattributes
  17. .gitconfig
  18. .gitignore
  19. .gn
  20. .mailmap
  21. .style.yapf
  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. pubspec.yaml
  33. README.dart-sdk
  34. README.md
  35. sdk.code-workspace
  36. sdk_args.gni
  37. sdk_packages.yaml
  38. SECURITY.md
  39. WATCHLISTS
README.md

Dart

An approachable, portable, and productive language for high-quality apps on any platform

Dart is:

  • Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.

  • Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app. Diagnose app issues using DevTools.

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).

Contributing to Dart

See the contribution guide for details.

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 in our repo at docs.

Roadmap

Future plans for Dart are included in the combined Dart and Flutter roadmap on the Flutter wiki.