This CL changes the code generation for `dart2js` (and not for any other backend) such that the variable holding the receiver of an anonymous method invocation is declared as a normal local variable rather than being a `Let` variable. This is needed because `dart2js` supports capturing the former, but not the latter. Change-Id: I054805f7006306186f2c6dfe36d7162b42293ae1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/503420 Reviewed-by: Stephen Adams <sra@google.com> Commit-Queue: Erik Ernst <eernst@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> SLSA-Policy-Verified: SLSA Policy Verification Service <devtools-gerritcodereview-exitgate@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.