[dart:js_interop] Fix comparison operator return types

Fixes https://github.com/dart-lang/sdk/issues/55024

The patch files for these operators return a bool, whereas
the public API returns a JSBoolean. Since there's only one
possible return type, we should make them return bool for
convenience. Boolean conversion is also inexpensive on
dart2wasm, so that shouldn't be an issue.

Also adds helpers to operator_test to make sure any JS values
are converted before they're compared, adding additional type
checking through the conversion.

CoreLibraryReviewExempt: Fixes type mismatch in backend-specific library.
Change-Id: I7ff2e334e817e6e7d7d8d5091a4e5d570a496b03
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/354702
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Srujan Gaddam <srujzs@google.com>
3 files changed
tree: 82f1725561a267bf778c7b47dc0e2187ae8433bc
  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. SECURITY.md
  36. 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.

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Dart platforms illustration

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