Paul Berry
c67a80f3f5
The getter `SharedType.nullabilitySuffix` is replaced by `SharedType.isQuestionType`, which returns a boolean. The method `TypeAnalyzerOperations.withNullabilitySuffixInternal` is replaced by `SharedType.setNullabilitySuffix`, which accepts a boolean. Support for `*` types has been removed from `mini_types.dart`. A few test cases in `flow_analysis_test.dart` previously used `*` types as a way of exercising corner cases involving types that were mutual subtypes of each other. These tests have been changed to take advantage of the fact that `dynamic` and `Object?` are mutual subtypes. Change-Id: Id9904f9570fc738b388192db8536848204af03e9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/414581 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: 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.