Jens Johansen
00caf79873
I've sampled (eagerly) reading the VM platform, a compilation of dart2js, a compilation of "flutter gallery" and a compilation of a big internal app, and reordered switch cases accordingly. I can't measure any difference in runtime, but have a hard time thinking it's not better. I've included the tool that does the sampling. Change-Id: If61c5a95265229c238020264010553f281fec49c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/267362 Commit-Queue: Jens Johansen <jensj@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.