Nate Biggs
2284e74d7e
Dart protobufs allow users to specify a mixin class that will get applied to a GeneratedMessage subclass's class hierarchy. Internal programs use these mixins for various purposes. But these classes can still benefit from tree shaking. This is controlled by a separate flag because it is technically unsafe to introduce this treeshaking to a new set of classes. The user must opt-in to verify these new classes are safe to tree-shake. We already have an analagous flag for tree shaking in dart2js (and some customers have turned it on). TEST=Treeshaker test and testcases updated. Change-Id: Id613078699af38b7ca36420fb2b41945d645b6a1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/462180 Reviewed-by: Jens Johansen <jensj@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Commit-Queue: Nate Biggs <natebiggs@google.com>
The frontend_server package is used by both the flutter command line tool and the frontend_server_client package (used by webdev and package:test).
API Stability
Changes to the command line API or behavior should be tested against the following test suites (in addition to normal HHH testing):
- flutter_tools: https://github.com/flutter/flutter/tree/master/packages/flutter_tools
- frontend_server_client: https://github.com/dart-lang/webdev/tree/master/frontend_server_client
Otherwise these changes will need to be carefully coordinated with the flutter tooling and frontend_server_client teams.
This API stability does not cover any of the source code APIs.
Stable subset
- The frontend_server kernel compilation and expression evaluation for kernel should be considered "stable".
- The frontend_server JavaScript compilation is semi-stable, but clients should anticipate coordinated breaking changes in the future.
- The frontend_server JavaScript expression evaluation is experimental and is expected to change significantly from Dec 2020 through the end of 2021.
- Specific flags may be added for experimentation and should not be considered stable.