ddcd028cde
The `_FutureListener.callback` field is used for multiple purposes (possibly to save memory by avoiding additional fields) so it cannot have a specific function type. This causes the `Function?` typed `_FutureListener.callback` field to be casted to proper function types such as `T Function(S)`. => Those runtime type checks are very expensive. To avoid introducing more fields we use an `unsafeCast<T>()` for those casts, since the implementation guarantees they are going to suceed. Issue https://github.com/dart-lang/sdk/issues/48225 TEST=ci Change-Id: I6f0cc87600462c8ca5baceeb511ce8a06c61237e Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/230240 Reviewed-by: Nicholas Shahan <nshahan@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com>
Front end for Dart
This package provides a low-level API for use by compiler back ends that wish to implement the Dart language. It is intended for eventual use by dev_compiler, dart2js, and the Dart VM. In addition, it will share implementation details with the analyzer package--this will be accomplished by having the analyzer package import (and re-export) parts of this package's private implementation.
End-users should use the dart analyze
command-line tool to analyze their Dart code.
Integrators that want to write tools that analyze Dart code should use the analyzer package.
Note: A previous version of this package was published on pub.dev. It has now been marked DISCONTINUED as it is not intended for direct consumption, as per the notes above.