This should enable strong mode tests to be fully NNBD opted in. At the same time, legacy tests when run with the experiment off should hopefully be able to still consume these libraries because they don't actually use any NNBD features. To do this, I changed the script that generates the SDK repo's package config to not put in a language version for any package whose pubspec has no SDK version. According to language versioning, that means the package should be considered to be at the "current" version of the SDK running the code. In NNBD, that's opted in. With the experiment off, that is (presumably) "opted out" in the sense that NNBD doesn't exist. In order to *not* opt in some of the other packages that currently lack SDK constraints, I put those in and pinned them to "^2.7.0" which was what the package config script used to implicitly fill in for them. I see a bunch of other changes in the generated package config too. The update script probably hasn't been run in a while. Change-Id: I55193d42eac0696a6b0105546551efa45a1f3252 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144305 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Leaf Petersen <leafp@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
Dart
A client-optimized language for fast apps on any platform
Dart is:
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Optimized for UI: Develop with a programming language specialized around the needs of user interface creation
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Productive: Make changes iteratively: use hot reload to see the result instantly in your running app
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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:
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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 Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).
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.