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The Dart2JS team has agreed that this mode of compilation is no longer worth investing in at this time and its existence adds some overhead to other feature work so it is worth fully removing. In the future we may revisit this mode of compilation. Below is some more context for any future exploration in this space. What didn't work with modular analysis: - current modular analysis was computing impacts, which were dense (50% of the size of kernel) - using it moved work to a modular phase, and cut Phase1 in half however end-to-end time was not better - data overhead was very high - it made it much harder to maintain invariants throughout the pipeline: the data is tightly coupled with the kernel AST, making it hard to make late modifications to the AST. How to potentially make it better: - make the data much more sparse - make the data more independent from the kernel AST so that transformations are not breaking - reduce the critical path in a more substantial way. Note: We retain and ignore the commandline flags used for modular analysis in order to avoid breaking build pipelines that were passing them. We may remove these at a later date. Change-Id: If574ce2358280ab5fedd89c62665328601e72e22 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/333360 Reviewed-by: Mayank Patke <fishythefish@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com> Commit-Queue: Nate Biggs <natebiggs@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, 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.