[dart2wasm] Make implementation libraries part of core to hide internals

Previously we had started to move core patch files to libraries for
better code organization.

However moving implementation classes to separate libraries required
making the implementation types and internal members public.

This has two problems:

1. The members can be accessed by end users via `dynamic`.
2. More importantly, because those public internal members can impact
   TFA results.

We don't care about (1) too much, but (2) is important.

So in this CL we make the libraries part of `core` again, while keeping
the file structure the same when possible.

With implementation files listed as "patches" they can still have their
own imports, but hey won't be importing each other as they're all part
of the same library.

This is the first CL in series that merges `_boxed_int` and
`_boxed_double` libraries back to `core`, and `_typed_data` back to
`typed_data`. Follow-up CLs will merge the other libraries back to
`core`.

The conventions for files is:

- Files that patch core types are named `..._patch.dart`.

- Implementation classes are in separate files. Names of the
  implementation files is either the implementation class name (e.g.
  `boxed_double.dart` for `_BoxedDouble`), or when implementing multiple
  class, name of the library being implemented (e.g. `typed_data.dart`).

Following these conventions, `double.dart` is renamed to
`double_patch.dart`.

Because we lose namespacing for helpers, the helper intrinsics like
`double` `_toInt` are moved to class members, as before.

One problem in the current CL is that in `libraries.yaml`, when I
`include` a target, I can't add more `core` patches to the included
target, the patch section overrides the included patches. I don't know
if this is a bug yet. If it is, we can refactor `libraries.yaml` after
it's fixed.

Tested: Changes covered by existing tests.
Change-Id: Iba7d81d383deff61aad521000f0ca9cf9276dcfb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/319500
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>
Commit-Queue: Ömer Ağacan <omersa@google.com>
19 files changed
tree: a70a7a5e99b7f6d6f4dc4f2ff4b9b4664377e7b2
  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. .vpython
  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. README.dart-sdk
  33. README.md
  34. sdk.code-workspace
  35. sdk_args.gni
  36. SECURITY.md
  37. 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.