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dart / sdk / bb15e60295b373c400cbd630643e9faed801376d
commitbb15e60295b373c400cbd630643e9faed801376d[log] [tgz]
authorMartin Kustermann <kustermann@google.com>Thu Feb 13 07:01:28 2025 -0800
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Feb 13 07:01:28 2025 -0800
treeb14e4c63162f66dd5bb4136173ee804a1bdf038f
parentc55454813e4f9e5e2792912947a884585526f732 [diff]
[dart2wasm] Make json parser calculate string hash of keys while processing the json object key bytes

The json parser parses string literals in the json. If those string
literals are used as keys in json objects we'll later on construct a
hash map for the json object and have to calculate the hash of all the
string keys.

Since we process the bytes of the string key while scanning, we may as
well eagerly calculate the hash there while we already processed the
bytes, to avoid going over the bytes again when creating the hash map.

Change-Id: If998be31394594a64cc6c352edc6e9d805720356
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/409661
Reviewed-by: Ömer Ağacan <omersa@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
1 file changed
tree: b14e4c63162f66dd5bb4136173ee804a1bdf038f
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  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. .style.yapf
  21. AUTHORS
  22. BUILD.gn
  23. CHANGELOG.md
  24. codereview.settings
  25. CONTRIBUTING.md
  26. DEPS
  27. LICENSE
  28. OWNERS
  29. PATENT_GRANT
  30. PRESUBMIT.py
  31. README.dart-sdk
  32. README.md
  33. sdk.code-workspace
  34. sdk_args.gni
  35. sdk_packages.yaml
  36. SECURITY.md
  37. 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).

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.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.

Roadmap

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