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 as a frontend for codegen and execution backends.
The kernel language has in-memory representations in Dart and C++, 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:
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.
Checkout the repository and run pub get:
git clone https://github.com/dart-lang/kernel cd kernel pub get
tool/dartk.dart from the command-line to convert between .dart files
and the serialized binary and textual formats.
dartk expects the
.dill extension for files in the binary format.
The textual format has no preferred extension right now.
dartk foo.dart # print text IR for foo.dart dartk foo.dart -ofoo.dill # write binary IR for foo.dart to foo.dill dartk foo.dill # print text IR for binary file foo.dill
-l flag to link all transitive dependencies into one file:
dartk myapp.dart -ppackages -l -omyapp.dill # Bundle everything. dartk myapp.dill # Print it back out in a (very, very long) textual format.
If you plan to make changes to kernel, get a checkout of the Dartk SDK and run:
tool/regenerate_dill_files.dart --sdk <path to SDK checkout> pub run test
Linking from binary files is not yet implemented. In order to compile a whole program, currently everything must be compiled from source at once.
Add this to your package's pubspec.yaml file:
dependencies: kernel: "^0.3.0"
You can install packages from the command line:
$ pub get
$ flutter packages get
Alternatively, your editor might support
pub get or
flutter packages get.
Check the docs for your editor to learn more.
Now in your Dart code, you can use:
|0.3.0||May 14, 2018|
|0.2.0||Apr 21, 2017|
|0.1.0||Oct 20, 2016|
|0.3.0-alpha.12||Apr 30, 2018|
|0.3.0-alpha.11||Mar 22, 2018|
|0.3.0-alpha.10||Feb 14, 2018|
|0.3.0-alpha.9||Feb 9, 2018|
|0.3.0-alpha.5||Feb 2, 2018|
|0.3.0-alpha.4||Nov 28, 2017|
|0.3.0-alpha.3||Aug 25, 2017|
We analyzed this package on May 22, 2018, and provided a score, details, and suggestions below. Analysis was completed with status completed using:
Describes how popular the package is relative to other packages. [more]
Code health derived from static analysis. [more]
Reflects how tidy and up-to-date the package is. [more]
Weighted score of the above. [more]
Detected platforms: Flutter, other
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The description is too short.
Add more detail about the package, what it does and what is its target use case. Try to write at least 60 characters.
Package is pre-v1 release.
While there is nothing inherently wrong with versions of
0.*.*, it usually means that the author is still experimenting with the general direction API.
Fix analysis and formatting issues.
Analysis or formatting checks reported 7 hints.
Strong-mode analysis of
lib/ast.dartgave the following hint:
line: 4515 col: 17
Strong-mode analysis of
lib/class_hierarchy.dartgave the following hint:
line: 1297 col: 12
Invocation of Iterable<E>.contains with references of unrelated types.
Maintain an example.
Create a short demo in the
example/directory to show how to use this package. Common file name patterns include:
example.dartor you could also use
|Dart SDK||>=2.0.0-dev.48.0 <2.0.0|