Chloe Stefantsova
09a156bb2d
Previously the getter VariableBase.context was redirecting to VariableBase.parent, effectively requiring a change of the ownership over the variable. This CL makes VariableBase.context a field of VariableBase, allowing for the previously existing ownership structure of the AST tree nodes. The change allows to avoid workarounds for the existing ownership-restoring logic, such as the assignments to the `parent` pointer made in the constructors of the AST nodes and their `transformChildren` and `transformOrRemoveChildren` methods. Part of https://github.com/dart-lang/sdk/issues/61572 Change-Id: I307c9d2b23c8201f8d7d2a100acf9fb8f3af2572 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/494441 Commit-Queue: Chloe Stefantsova <cstefantsova@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.