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Paul Berry b5a3292260 Abstract field support: add a notion of abstract fields to the AST and element model.
In a follow-up CL I will update error reporting logic.

Change-Id: I6fd2916c24a531b1f41bd2872301ffec1fdb8722
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/157382
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
2020-08-06 02:19:46 +00:00
.dart_tool Add tests for inconsistent language markers in part files. 2020-07-24 12:58:35 +00:00
.github Update new issue template. 2019-04-30 18:14:21 +00:00
benchmarks [benchmarks] Migrate Utf8Decode benchmark. 2020-07-01 16:53:11 +00:00
build Revert "[vm] Fix some Fuchsia tests" 2020-08-05 23:46:56 +00:00
client Remove old annotated_steps buildbot scripts and dispatcher 2017-05-23 16:17:02 +02:00
docs process docs: Add link to experimental flags yaml file 2020-05-30 02:28:22 +00:00
pkg Abstract field support: add a notion of abstract fields to the AST and element model. 2020-08-06 02:19:46 +00:00
runtime Revert "[vm] Fix some Fuchsia tests" 2020-08-05 23:46:56 +00:00
samples [vm] Native API: Introduce Dart_FinalizableHandle 2020-07-23 11:30:39 +00:00
samples-dev/swarm [cfe] Check overrides on operators 2020-07-08 08:45:34 +00:00
sdk [ddc] Null check parameter to num.toStringAsFixed 2020-08-05 23:48:35 +00:00
tests Revert "[vm] Fix some Fuchsia tests" 2020-08-05 23:46:56 +00:00
third_party Add README.google and change browser-compat-data DEPS 2020-05-29 18:59:34 +00:00
tools Add DartSdk.languageVersion 2020-08-04 21:01:09 +00:00
utils [SDK] Fix VM/kernel version mix in build. 2020-08-05 11:46:28 +00:00
.clang-format VM: Re-format to use at most one newline between functions 2017-07-13 08:08:37 -07:00
.gitattributes Migrate language_2/string to null safety. 2020-06-17 21:14:43 +00:00
.gitconfig [infra] Add documentation to .gitconfig 2018-06-11 18:24:16 +00:00
.gitignore Add internal benchmarks to .gitignore. 2020-06-26 11:57:22 +00:00
.gn Starting work on full GN build 2016-09-23 07:47:36 -07:00
.mailmap fix my name in .mailmap 2018-09-11 01:45:52 +00:00
.packages [ package:dds ] Add server-sent event (SSE) support to DDS 2020-07-15 21:30:09 +00:00
.style.yapf Mass format python with yapf 2019-08-05 20:34:31 +00:00
.vpython [infra] Add .vpython spec to fix gsutil on the bots (#31065) 2018-10-11 15:11:35 +00:00
AUTHORS [runtime/vm] ARM64: Support unaligned memory accesses for regex. 2019-10-15 20:11:40 +00:00
BUILD.gn Revert "[vm] Fix some Fuchsia tests" 2020-08-05 23:46:56 +00:00
CHANGELOG.md Update CHANGELOG.md 2020-08-05 18:26:11 +00:00
codereview.settings Update codereview.settings to Gerrit (dart-review.googlesource.com) 2017-09-04 12:52:09 +00:00
CONTRIBUTING.md Fix a number of outdated URLs across a number of markdown files 2020-05-29 09:23:45 +00:00
DEPS [co19] Roll co19 to a9bd47e85862b4af9006c24ea0cb626850bc5de7 2020-08-04 10:30:22 +00:00
LICENSE Remove third_party licenses from LICENSE 2019-08-21 07:43:34 +00:00
PATENT_GRANT Rename patent file 2019-08-16 12:03:17 +00:00
PRESUBMIT.py [Core Libraries] Eliminate the fork in the core libraries. 2020-06-16 23:37:36 +00:00
README.dart-sdk Add dart2native to sdk README 2020-01-20 09:32:58 +00:00
README.md Fix a number of outdated URLs across a number of markdown files 2020-05-29 09:23:45 +00:00
sdk_args.gni [build] Automatically rebuild sdk_hash when the Git commit changes. 2020-07-09 21:12:15 +00:00
WATCHLISTS [dart2js] 20 dart2js tests ported to nnbd #1. 2020-06-26 15:21:42 +00:00

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 the dart.dev to learn more about the language, tools, getting started, and more.

Browse pub.dev for more packages and libraries contributed by the community and the Dart team.

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.