Daco Harkes
40787d84fc
The VM can read native asset mappings from kernel. Previous CLs already added support to embed native asset mappings for one-shot compilation. This CL adds support for adding native assets mappings to kernel files created by the frontend_server with the incremental compiler. The frontend_server accepts a `--native-assets=<uri>` at startup and accepts a `native-assets <uri>` message on stdin as compilation command. The frontend_server caches the compiled native assets library. When a `reset` command is sent to request a full dill from the incremental compiler, the native assets mapping is taken from the cache and added to the final dill file. Split of DartSDK & flutter_tools prototype to land separately. TEST=pkg/frontend_server/test/native_assets_test.dart Bug: https://github.com/dart-lang/sdk/issues/49803 Bug: https://github.com/dart-lang/sdk/issues/50565 Change-Id: I6e15f177564b8a962e81261815e951e7c9525513 Cq-Include-Trybots: luci.dart.try:pkg-linux-debug-try,pkg-linux-release-try,pkg-mac-release-arm64-try,pkg-mac-release-try,pkg-win-release-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/282101 Reviewed-by: Jens Johansen <jensj@google.com> Commit-Queue: Daco Harkes <dacoharkes@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 like the --flutter-widget-cache may be added for experimentation and should not be considered stable.