Johnni Winther
d59c8bc4fd
The CloneVisitorNotMembers contains a mapping from variables to their corresponding clones. The ListFactorySpecializer special cased access to this mapping to support conditional cloning. When dart2js switchted to used the new method invocation encoding, this left the LocalFunctionInvocation unhandled, leading to null check error when local functions where invoked in the closure passed to List.generate. This CL makes this mapping private and adds getter/setter methods for lookup and registration. The ListFactorySpecializer now instead overrides the getter to support conditional cloning instead of handling each use case. Bug: b/183083319 Change-Id: I2fd3b79137c51a424f17127b502e6a945c6796a9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191901 Reviewed-by: Jens Johansen <jensj@google.com> Commit-Queue: 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.