Jens Johansen
cb7aee58ca
On a flutter dill extracted via the mentioned bug I get these timings when (once, i.e. I haven't done extra statistics) running ``` out/ReleaseX64/dart pkg/kernel/test/binary_bench2.dart --warmups=10 \ --iterations=5 --metadata AstFromBinaryEager <dill from flutter> ``` (and without `--metadata` for without metadata): Without reading metadata: ~378 ms With reading metadata before this CL: ~627 ms With reading metadata with this CL: ~435 ms Bug: https://github.com/flutter/flutter/issues/156713 Change-Id: Id6cb27bc00526ff61c48eeb66ebb86dff1b971a2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/391761 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.