The VM target no longer supports the `foo() native "foo";` syntax. See final removal in [0]. Dart2Wasm has never really been using it. * In the sdk dart2wasm uses `external` functions with recognizion in the compiler based on the name of the method. * JS interop is using `@JS` based mechanism. * Wasm to Wasm interop is based on `@Native<>()` annotations. This means that only dart2js/ddc are remaining users of the `foo() native;` syntax (without following string). So we can clean up some code. [0] https://dart-review.googlesource.com/c/sdk/+/266387 Issue https://github.com/dart-lang/sdk/issues/28791 TEST=ci Change-Id: I929789f7a1ea5ed5423b0db0c6a306406e2db2af Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/351083 Reviewed-by: Jens Johansen <jensj@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com> Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Martin Kustermann <kustermann@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.