Nate Biggs
a503edf481
We are experiencing diffs in Dart2JS source maps in `--test-mode` which does a serialization round trip. JS that should map to default parameters is instead mapping to the surrounding `Constructor` member since the FieldInitializer's offset is getting dropped. This is affecting any Dart2JS split action build since those all end of serialiaing and deserializing the kernel. Any other tools using this serialization would also be affected. TEST=Existing/will add in follow up. Bug: https://github.com/dart-lang/sdk/issues/53466 Change-Id: Ibeccf9153c78e6c358806c7ded4dbc2dea49d8e6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/325020 Commit-Queue: Nate Biggs <natebiggs@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com>
Dart Kernel
Dart Kernel is a small high-level language derived from Dart. It is designed for use as an intermediate format for whole-program analysis and transformations, and to be consumed by codegen and execution backends.
The kernel language has an in-memory representation in Dart and can be serialized as binary or text.
Both the kernel language and its implementations are unstable and are under development.
This package contains the Dart part of the implementation and contains:
- A transformable IR for the kernel language
- Serialization of kernel code
Note: The APIs in this package are in an early state; developers should be careful about depending on this package. In particular, there is no semver contract for release versions of this package. Please depend directly on individual versions.
See ast.dart for the in-memory IR, or binary.md for a description of the binary format. For now, the textual format is very ad-hoc and cannot be parsed back in.