Dmitry Stefantsov
e53e5f2475
For some types it makes sense to distinguish between nullability as a property of including null and the declared nullability, such as for type-parameter types and FutureOr types. This CL introduces the separation between the two concepts. The plan is to use that when implementing FutureOrType. Bug: https://github.com/dart-lang/sdk/issues/40123 Change-Id: I90b45bea768e89c213d021d360a481d38377c682 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/147903 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Dmitry Stefantsov <dmitryas@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.