Prior to this CL the CFE verifier would update the type of the variable in Let expressions from `dynamic` to the computed static type of the initializer. This CL removes the type update, making the .expect files reflect the CFE output more accurately. Additionally, a verification check is added to make sure the static type of the initializer is assignable to the type of the Let variable. Change-Id: I0b7b8f175bcb319678c323eb6440d93f1f384a85 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425500 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Chloe Stefantsova <cstefantsova@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.