This change addresses a corner case discovered during internal testing of the fix for https://github.com/dart-lang/language/issues/731 (improved inference for fold etc.): if there is no order dependency forcing us to do a round of horizontal inference between visiting non-closure arguments and closure arguments, then it's important that we *don't* do a round of horizontal inference before visiting the closure, because there is a risk of inferring too narrow a type. The new algorithm includes all the invocation arguments in dependency analysis, and the dependency rules are structured such that non-closure arguments always wind up in stage 1. If there is no dependency between non-closure arguments and closure arguments, then the closure arguments also wind up in stage 1, and no horizontal inference occurs. If there is a dependency, then closure arguments wind up in stage 2 or later, and horizontal inference occurs between stages. Change-Id: Ida0b28da211f63191c9c9c39e6004893617507bf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/240442 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Paul Berry <paulberry@google.com> Reviewed-by: Samuel Rawlins <srawlins@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 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.