Jens Johansen
43b499cf9a
When compiling compile.dart: 148,192 FunctionType are created via `computeThisFunctionType`. 133,085 of them have no named parameters; 141,507 of them have no type parameters; 128,357 of them have neither. This CL makes it not create new lists when not needed (or create empty iterators and sort empty lists), and makes the lists it do create not growable. Change-Id: Ibd5fef458b8a1254aa2f1fab80d0449a2f0bfd94 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/298541 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.