8c13fa841e
Simple calls to `List.generate` are expanded into a list allocation and a loop. This generates better code for several reasons: - There is no overhead for the function argument (closure allocation, closure type, closure class) - Global type inference is more precise since each List.generate list is tracked separately, and the assignments in the loop give better inference to the collection's element type. To get precise element type inference, there are two new JSArray constructors. Global type inference starts with the element type being bottom for these elements, avoiding spurious nulls in the inferred type. Change-Id: I5efb90651ae3f9eb2e81af556704960cdf0b75c5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168770 Commit-Queue: Stephen Adams <sra@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> |
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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, 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.