[io/file_watcher] Unregister watched pathId when handle is closed. When file watching stream reports an error, it will close the handle too after sending "closed" event out to the listeners. Listener should not attempt to do anything with that handle(kept as pathId in the listener). In particular it should not attempt to call that handle to unwatch when user of the listener requested to cancel the listener. Further fixes for https://github.com/flutter/flutter/issues/46616 Change-Id: Iccc100e294b11d3999ad68e775ef1ceb1d7a5efb Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/133180 Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Zichang Guo <zichangguo@google.com>
Dart is:
Optimized for UI: Develop with a programming language specialized around the needs of user interface creation
Productive: Make changes iteratively: use hot reload to see the result instantly in your running app
Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web
Dart has flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:
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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