Chloe Stefantsova
3393befc99
In this CL methods StructuralParameterType.forAlphaRenaming, StructuralParameterType.forAlphaRenamingFromTypeParameter, TypeParameterType.forAlphaRenaming, and TypeParameterType.forAlphaRenamingFromStructuralParameter are removed, and their call sites are replaced with invocations of other constructors of StructuralParameterType and TypeParameterType. The reason for this change is call sites having more information for correct computing of type nullabilities. In addition to the primary update, the following related changes are made in this CL. * Method StructuralParameterType.computeDefaultNullabilityForLibrary is renamed into StructuralParameterType.computeDefaultNullability, and TypeParameterType.computeDefaultNullabilityForLibrary is renamed into TypeParameterType.computeDefaultNullability. The parameter `library` is removed from both methods, since it's no longer needed. * The static methods named `computeNullabilityFromBound` are removed from `StructuralParameterType` and `TypeParameterType` and re-introduced as instance members in classes `StructuralParameter` and `TestParameter` respectively TEST=existing Change-Id: I26cccf17ccc9bda1e8b750196f427325b544a7ac Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/402820 Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Mayank Patke <fishythefish@google.com> Reviewed-by: Alexander Markov <alexmarkov@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.