This is a reland of commit4cd9c9c666This will be relanded without changes because we discussed the .proto definition package name clashing problem with the Dart in google3 team, and we have decided that the best solution is to ignore the checked in .proto files in google3 builds. TEST=Recorded traces with the Perfetto file recorder and explored them in Perfetto's trace viewer, CI Original change's description: > Reland "[VM] Begin supporting Perfetto file recorder" > > This is a reland of commit7424295ce9> > The differences between this reland and the original CL are: now the > Perfetto file recorder does not get built in PRODUCT builds, and it does > not get built unless the SUPPORT_PERFETTO macro is defined. > > TEST=Recorded traces with the Perfetto file recorder and explored them > in Perfetto's trace viewer, CI > > Original change's description: > > [VM] Begin supporting Perfetto file recorder > > > > This CL adds the `TimelineEventPerfettoFileRecorder` class, which is a > > timeline recorder that writes a trace to file in Perfetto's proto > > format. This CL supports the recording of all types of timeline events > > except flow events. Support for flow events will be added in a future > > CL. > > > > TEST=Recorded traces with the Perfetto file recorder and explored them > > in Perfetto's trace viewer, CI > > > > Change-Id: Iaa2051e536589a473c5e15f9de9bb9c251f13d38 > > Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/278942 > > Reviewed-by: Ben Konyi <bkonyi@google.com> > > Commit-Queue: Derek Xu <derekx@google.com> > > Change-Id: I8713f704b5fbeed5f1231012bce8a32aaf566ae4 > Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/286020 > Reviewed-by: Ben Konyi <bkonyi@google.com> > Commit-Queue: Derek Xu <derekx@google.com> Change-Id: Ia97ef1f0fe73e76c7022623b9ae7e21a4ea73a46 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/295804 Commit-Queue: Derek Xu <derekx@google.com> Reviewed-by: Ben Konyi <bkonyi@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.