Files
sdk/pkg/kernel
Johnni Winther 2b79d2b747 [cfe] Refactor TypeBuilders
Various cleanups to the TypeBuilder classes:

TypeBuilder:
* Remove `origin` parameter from TypeBuilder.build and instead make
  FunctionType.typedefType mutable and set if after creation.
* Remove `charOffset` and `fileUri` parameters from
  TypeBuilder.buildSupertype/buildMixedInType
* Remove `bind`, `resolveIn`, and `check` from TypeBuilder so that
  these are only present on NamedTypeBuilder
* Remove TypeBuilder.buildTypeLiteralType and instead pass an
  argument to NamedTypeBuilder that determines what type to create
  on `build`.

NamedTypeBuilder:
* Make NamedTypeBuilder.instanceTypeVariableAccess private
* Add NamedTypeBuilder.forDartType for prebuilt types
* Add NamedTypeBuilder.forInvalidType for types created for errors
* Make NamedTypeBuilder.declaration private and corresponding getter
* Check most type use errors on NamedTypeBuilder.bind
* Make NamedTypeBuilder helper methods private
* Add `TypeVariableBuilder.isClassParameter` to support checking for
  valid type variable use through the `NamedTypeBuilder.bind` method.
* Remove checking of type variable in static context from BodyBuilder
  since it is now checking on `NamedTypeBuilder.bind`.

FunctionTypeBuilder:
* Cache result of FunctionTypeBuilder.build

TypeBuilderComputer:
* Cache "constant" type declarations in TypeBuilderComputer
Change-Id: Ibaedcb255487eecc5efe70b84e5cbd5a118c1e0b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/239023
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-03-28 18:22:50 +00:00
..
2021-09-02 13:54:15 +00:00
2022-03-28 18:22:50 +00:00
2021-04-07 10:28:38 +00:00
2022-02-14 14:06:34 +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.