[vm] Avoid duplicate entries in invocation dispatcher cache.

We would add function itself to the invocation dispatcher cache
if the function itself can handle dynamic invocation.

However GetInvocationDispatcher will never be able to find this
entry because it looks specifically for functions with
kDynamicInvocationForwarder kind.

This lead us to add many duplicated entries to the cache.

The logic in the resolver does not actually need the cache to contain
the function because it falls through to lookup using unmangled name.

For a large Flutter application: before this change invocation dispatcher caches were contributing 129244 bytes to the snapshot, after this change they contribute 7764 bytes.

Fixes https://github.com/dart-lang/sdk/issues/48914

TEST=ci

Change-Id: I639d268e75fd43d2f4f0b1ea5a7873ba169f9d66
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242862
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
1 file changed
tree: c78660d27bc570614f665e241ab9f57ca6934258
  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.