Doesn't change anything in `front_end/*testcases/primary_constructors/`. (Would have skipped any other file with `test` in its path and an explicit language version marker, but there weren't any outside of those `front_end` directories). Almost no files used as test input were affected, and none testing the actual syntax changed. The `.../nnbd/required_2.dart` test case was split into a legacy version retaining the `var`/`final` with a language marker, and a new version without the `var`/`final` cases. The `pkg/analyzer/` tests, and any other tests that have source code in strings, are not migrated by this CL. Tested: No change to behavior. One test split into legacy and new. Change-Id: I7f5aa4cc98001a9adecacd106c0b3be14f96be1c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/480542 Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Nate Bosch <nbosch@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Lasse Nielsen <lrn@google.com> Reviewed-by: Nicholas Shahan <nshahan@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.