This reverts commit a07a0333c3.
Reason for revert: Seems to increase AOT build times significantly (see b/251787563).
Original change's description:
> [kernel] Create Source.sourceCode as view of the binary bytes
>
> This saves about 400MB heap when loading a 900MB .dill file.
>
> Change-Id: I5a09b06764cb493aab8dade2afb4665e12688133
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/255802
> Reviewed-by: Jens Johansen <jensj@google.com>
> Commit-Queue: Stephen Adams <sra@google.com>
# Not skipping CQ checks because original CL landed > 1 day ago.
Change-Id: Ia7edd7d5e711a33bd037f6edbe52ba2fb561709c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/263101
Reviewed-by: Ivan Inozemtsev <iinozemtsev@google.com>
Reviewed-by: Morgan :) <davidmorgan@google.com>
Commit-Queue: Ilya Yanok <yanok@google.com>
Reviewed-by: Stephen Adams <sra@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
Reviewed-by: Ilya Yanok <yanok@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.