Paul Berry
0d8bb0e7e7
This commit builds on the work done in https://dart-review.googlesource.com/c/sdk/+/362481, which established the framework for sharing a class hierarchy between the analyzer and CFE to represent types. This commit introduces the following new classes: - `SharedDynamicType`, which represents the common interface between the `DynamicType` classes in the analyzer and the CFE. - `SharedInvalidType`, which represents the common interface between the `InvalidType` classes in the analyzer and the CFE. - `SharedVoidType`, which represents the common interface between the `VoidType` classes in the analyzer and the CFE. This allows 3 methods to be removed from the `FlowAnalysisTypeOperations` class: - `isDynamic`, which is no longer needed becasue `is SharedDynamicType` can be used instead. - `isError`, which is no longer needed because `is SharedInvalidType` can be used instead. - `isVoid`, which is no longer needed because `is SharedVoidType` can be used instead. In addition, `getDisplayString` is removed from the `TypeAnalyzerOperations` class, and replaced with a `getDisplayString` method in `SharedType`. This does not increase the API surface area of the analyzer, because the analyzer already has a `DartType.getDisplayString` method. Change-Id: Ib8d9d3a7699f3d1e8b9612ca9c8f4134fa19de77 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/365303 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Chloe Stefantsova <cstefantsova@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.