Ömer Sinan Ağacan
af2bea8162
Make the `value` fields of `BoxedInt`, `BoxedDouble` and `BoxedBool` `final`, to generate immutable Wasm fields for them. Immutable fields can potentially generate better code, as loads from the same object will always generate the same value. To allow making the `value` fields `final`, add a constructor. To allow adding a constructor, "implement` base classes instead of extending them. With `extends` the front-end wants us to call the superclass constructors, even though they don't have any constructors. Implementing `bool` (instead of extending) causes issues in TFA as it currently assumes bool literals are compiled as the `bool` class. Update TFA to treat bool literals the same way as `int` and `double` literals. Tested: existing tests Change-Id: I3282e188d784fa7a22421edc79ed47f9d85faf19 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/393320 Commit-Queue: Ömer Ağacan <omersa@google.com> Reviewed-by: 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.