5ae4448779
This is a breaking change. https://github.com/dart-lang/sdk/issues/40706 The dummy object returned if FileStat.stat() and FileStat.statSync() fail now contains Unix epoch timestamps instead of null for the accessed, changed, and modified getters. These timestamps are always non-null if the API succeeds and the timestamps are meaningless when the API fails and returns the FileSystemEntityType.notFound type. This change makes the timestamps always non-null, which avoids all legitimate accesses needing a needless null check when Dart becomes null safe. This change is consistent with the mode and size getters that are initialized to non-null dummy values when the API fail. The NNBD migration required making subtle changes to some dart:io semantics in order to provide a better API. This change backports one of these semantic changes to the unmigrated SDK so any issues can be discovered now instead of blocking the future SDK unfork. Change-Id: Iff6b34d04b60f4c9f4cf8d9dd0679f721d142ba4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/136585 Reviewed-by: Lasse R.H. Nielsen <lrn@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 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.