[vm/debugger] Fixes async CollectAwaiterReturn()

The async, off-stack part of DebuggerStackTrace::CollectAwaiterReturn's
stack unwinding incorrectly looked on the stack instead of following
the Closure's awaiter chain.
This caused the async stack traces to be truncated and missing any
async frames, in turn causing ShouldPauseOnException to incorrectly
conclude no handler frame existing.
This would affect any case where the exception handling was located
around any except for the inner most awaiter.

TEST=Added regression test to pause_on_unhandled_exceptions_catcherror_test

Closes: https://github.com/dart-lang/sdk/issues/37953
Bug: https://github.com/dart-lang/sdk/issues/37953
Change-Id: I34a2b5ce3c7532032b2ef3dfbc2af7294d13a4c7
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/187405
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
6 files changed
tree: 782ed93feb077a5f2cc109b4f60dfe5467001215
  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.