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Stephen Adams fb057ea4e0 [js_runtime, js_dev_runtime] Implement microsecond field of DataTime
- Move DateTime implementation for dart2js and DDC into a shared place to reduce duplication.

- Add a _microsecond field to the web DateTime to track microseconds outside of the JavaScript Date.

- The cute dart2js optimization whereby `DateTime.now().millisecondsSinceEpoch` is compiled to `Date.now()` still works.

- Both implementations report better errors.

- Fixed VM bug with in-range sentinel.


Change-Id: I9156255bdb6ecc195500ae9bc88f91fb315b6297
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/366963
Reviewed-by: Alexander Aprelev <aam@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Lasse Nielsen <lrn@google.com>
Commit-Queue: Stephen Adams <sra@google.com>
2024-05-22 05:18:52 +00:00
.dart_tool [infra] re-land work to auto-generate .dart_tool/package_config.json 2022-04-12 17:21:02 +00:00
.github Bump github/codeql-action from 2.13.4 to 3.25.5 2024-05-21 10:44:50 +00:00
benchmarks Roll benchmark_harness to version 2.3.0, add new benchmark. 2024-04-23 15:19:49 +00:00
build Reland "[infra] RBE all the things." 2024-04-12 22:06:32 +00:00
docs [docs] remove older pages 2024-05-21 21:10:29 +00:00
pkg [js_runtime, js_dev_runtime] Implement microsecond field of DataTime 2024-05-22 05:18:52 +00:00
runtime [vm, service] Treat the object id ring as strong during major GC. 2024-05-21 21:29:49 +00:00
samples [infra] Expand sanitizer test coverage. 2024-05-02 23:31:48 +00:00
sdk [js_runtime, js_dev_runtime] Implement microsecond field of DataTime 2024-05-22 05:18:52 +00:00
tests [js_runtime, js_dev_runtime] Implement microsecond field of DataTime 2024-05-22 05:18:52 +00:00
third_party [gardening] Fix SDK build 2024-05-07 14:56:10 +00:00
tools Update Dart.g to clarify the association of metadata and its target AST 2024-05-21 09:07:23 +00:00
utils [build] Don't make kernel generating depend on training run inputs. 2024-04-10 23:34:14 +00:00
.clang-format
.gitattributes Fix allowing Windows newlines in sh files. 2024-03-19 11:27:14 +00:00
.gitconfig
.gitignore [infra] Support testing with RBE on Windows. 2024-02-29 10:33:09 +00:00
.gn [build] Switch to Fuchsia core SDK. 2023-11-10 19:23:11 +00:00
.mailmap Fixed various typos in a lot of files 2022-07-25 12:21:59 +00:00
.style.yapf
AUTHORS Simplify the license situation 2022-09-14 21:06:22 +00:00
BUILD.gn [vm/build] Ensure relevant artifacts are built for precompiled target 2024-05-10 15:23:56 +00:00
CHANGELOG.md [js_runtime, js_dev_runtime] Implement microsecond field of DataTime 2024-05-22 05:18:52 +00:00
codereview.settings
CONTRIBUTING.md [wiki] move the https://github.com/dart-lang/sdk/wiki to the docs/ dir 2024-05-16 18:19:40 +00:00
DEPS [deps] rev args, http, mockito, web_socket_channel 2024-05-20 18:56:43 +00:00
LICENSE
OWNERS add package:_macros (SDK vendored) and package:macros (pub published) 2024-03-26 18:40:00 +00:00
PATENT_GRANT
PRESUBMIT.py [infra] Add clang-format to PRESUBMIT.py 2024-04-19 15:45:16 +00:00
README.dart-sdk Update README.dart-sdk for inclusion of AOT snapshots 2023-11-21 10:33:22 +00:00
README.md [wiki] move the https://github.com/dart-lang/sdk/wiki to the docs/ dir 2024-05-16 18:19:40 +00:00
sdk.code-workspace [cleanup] Remove co19_2 and other references to _2 suites 2023-11-22 11:15:57 +00:00
sdk_args.gni [gn] Add an option to specify the sdk_hash 2024-03-07 04:11:48 +00:00
sdk_packages.yaml add package:_macros (SDK vendored) and package:macros (pub published) 2024-03-26 18:40:00 +00:00
SECURITY.md
WATCHLISTS [analyzer] Properly close analyzer WATCHLISTS entry 2023-12-10 18:02:25 +00:00

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.