Files
sdk/pkg/kernel
Paul Berry 7fa49a285a Update the minimum SDK constraint to 2.2.2 for kernel and front_end packages.
This allows us to use ui-as-code and set literal features in these
packages.

This should be safe because (a) when these packages are used within
the SDK itself, they are used with the most recent SDK (whose version
is greater than 2.2.2), and (b) the only significant dependency on
these packages in pub is from the analyzer, which already has a
minimum SDK version of 2.2.2.

Change-Id: I4f7d4c9506904ee3016db95297b45e5bcf7989b7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/110060
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
2019-07-23 12:55:11 +00:00
..

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.