Paul Berry
a8e19e2f56
I've been experimenting with using the Jj source control tool, and
since it's not natively supported by `depot_tools`, this means I have
to manually invoke `git cl presubmit`. `git cl presubmit` accepts a
single argument which is the name of the upstream branch.
The way this is intended to work is that the upstream branch name gets
passed into the `PRESUBMIT.py` scripts, and they use it rather than
making assumptions about what the upstream branch is.
Prior to this change, our presubmit scripts for _fe_analyzer_shared,
front_end, frontend_server, and kernel were ignoring the upstream
branch and instead using git's `@{u}` shorthand (see
https://git-scm.com/docs/git-rev-parse). This caused them to behave
strangely when no upstream branch is set, which sometimes happens when
running `git cl presubmit` manually.
This change avoids the strange behavior by getting the upstream branch
from the input to `PRESUBMIT.py`, as intended.
Change-Id: I6a6a696423221d7b945b083fd72585f1f5a7e312
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/447626
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@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.