Chloe Stefantsova
3acd125e44
This CL removes Type and TypeSchema type variables from the abstract classes with shared code between the CFE and the analyzer. Extension types SharedTypeView and SharedTypeSchemaView are declared to replace the type variables. The update propagates the discipline of distinguishing between types and type schemas into the clients of the shared code. Now the code in the CFE and the Analyzer that uses the shared code needs to statically specify the interpretation of their type objects as either types or type schemas. Another benefit of the update is SharedTypeView and SharedTypeSchemaView being less opaque than the Type and TypeSchema type variables, which removes the necessity for some code duplication in abstract methods for types and type schemas. Finally, the update enables some further changes in the shared code between the Analyzer and the CFE. Change-Id: I88e8cfcd47d4f721974b4f2612521e85bb54c30f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/379302 Commit-Queue: Chloe Stefantsova <cstefantsova@google.com> Reviewed-by: Paul Berry <paulberry@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.