Johnni Winther
1da590fc3f
When the CFE compiles code for DDC or dart2wasm, it lowers late final fields to synthetic getters. In order to ensure that accesses to these fields can still be type promoted, a flag is added to the kernel `Procedure` class, to indicate that a getter was produced by lowering a late final field. When deciding whether a property access is promotable, the CFE checks this flag; if it's set, it treats the getter like a field. Includes a language test validating the fix. Fixes https://github.com/dart-lang/sdk/issues/53462. TEST=tests/language/inference_update_2/late_field_test.dart Change-Id: I98b81f04a3342d851060e5b2a7265323b93bb4e3 Bug: https://github.com/dart-lang/sdk/issues/53462 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/324767 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com> Reviewed-by: Paul Berry <paulberry@google.com> Commit-Queue: Paul Berry <paulberry@google.com> Reviewed-by: Johnni Winther <johnniwinther@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.