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alexmarkov and [vm/nnbd] Type testing stubs in NNBD strong mode
Issue: #38845
Change-Id: I82e7a1b3c4220abdd2a215529230fbb158adbe9e
Commit-Queue: Alexander Markov <>
Reviewed-by: Martin Kustermann <>
Reviewed-by: Régis Crelier <>
Latest commit 77e1c72 Feb 26, 2020


Type Name Latest commit message Commit time
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.github Update new issue template. Apr 30, 2019
benchmarks [benchmarks] Add typed data copy benchmark Jan 24, 2020
build [build] Update clang and gn to match Fuchsia. Feb 24, 2020
client Remove old annotated_steps buildbot scripts and dispatcher May 23, 2017
docs Update platforms diagram Feb 21, 2020
pkg [vm] Fix incorrect inference of non-nullability from 'is' checks Feb 27, 2020
runtime [vm/nnbd] Type testing stubs in NNBD strong mode Feb 27, 2020
samples-dev Mass format python with yapf Aug 5, 2019
samples [samples/ffi] Sample for asynchronous native port calls Feb 18, 2020
sdk [vm/vmservice] Validate getIsolate response before attempting to retr… Feb 25, 2020
sdk_nnbd [dartdevc] Fix analysis error in dart:collection patch file Feb 27, 2020
tests [vm/nnbd] Type testing stubs in NNBD strong mode Feb 27, 2020
third_party [build] Update clang and gn to match Fuchsia. Feb 24, 2020
tools [dart2js] switch bot to use hostaserts once again Feb 26, 2020
utils Remove workaround introduced for issue #40486, that issue Feb 26, 2020
.clang-format VM: Re-format to use at most one newline between functions Jul 13, 2017
.gitattributes [test] Fork mirrors tests. Jan 22, 2020
.gitconfig [infra] Add documentation to .gitconfig Jun 11, 2018
.gitignore Cleanup- remove the Dart Editor directories from the .gitignore file Jan 10, 2020
.gn Starting work on full GN build Sep 23, 2016
.mailmap fix my name in .mailmap Sep 11, 2018
.packages Change SDK to use package_config v1.9 (unreleased). Feb 18, 2020
.style.yapf Mass format python with yapf Aug 5, 2019
.vpython [infra] Add .vpython spec to fix gsutil on the bots (#31065) Oct 11, 2018
AUTHORS [runtime/vm] ARM64: Support unaligned memory accesses for regex. Oct 15, 2019 Add a script and target to run dartfix Oct 14, 2019 linter 0.1.111+1 Feb 26, 2020 Link from CONTRIBUTING to the code of conduct. Jan 10, 2020
DEPS linter 0.1.111+1 Feb 26, 2020
LICENSE Remove third_party licenses from LICENSE Aug 21, 2019
PATENT_GRANT Rename patent file Aug 16, 2019 Add some minimal presubmit checks to keep forked SDK tests in sync. Jan 16, 2020
README.dart-sdk Add dart2native to sdk README Jan 20, 2020 Update platforms diagram Feb 21, 2020
WATCHLISTS Auto-CC dart2js on changes to the js_runtime sdk. Sep 12, 2019
codereview.settings Update codereview.settings to Gerrit ( Sep 4, 2017
sdk_args.gni Support building under git-worktree Dec 19, 2019


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.


Using Dart

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

Browse 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.

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