dart-sdk/pkg/kernel
Kevin Millikin bda2c1d534 Update kernel/binary.md.
Update a few things that are out of date and consistently use List for
arrays preceded by a UInt length.

BUG=
R=asgerf@google.com

Review URL: https://codereview.chromium.org/2539063002 .
2016-11-30 12:26:03 +01:00
..
bin Store library paths relative to a given application root folder. 2016-11-30 10:39:48 +01:00
lib Store library paths relative to a given application root folder. 2016-11-30 10:39:48 +01:00
test Store library paths relative to a given application root folder. 2016-11-30 10:39:48 +01:00
testcases Update kernel testcase baseline. 2016-11-30 08:18:55 +01:00
.analysis_options Enable strong-mode for pkg/kernel and fix some strong-mode warnings. 2016-11-23 16:16:37 +01:00
.gitignore [kernel] Initial implementation of Dart Kernel. 2016-04-26 10:39:15 +02:00
AUTHORS [kernel] Initial implementation of Dart Kernel. 2016-04-26 10:39:15 +02:00
binary.md Update kernel/binary.md. 2016-11-30 12:26:03 +01:00
codereview.settings [kernel] Use public review server. 2016-10-18 11:37:37 +02:00
LICENSE [kernel] Initial implementation of Dart Kernel. 2016-04-26 10:39:15 +02:00
pubspec.yaml Fix the pubspec and warnings in pkg/kernel. 2016-11-23 14:36:22 +01:00
README.md [kernel] Remove obsolete part of readme 2016-10-20 13:12:41 +02:00

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 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:

  • A transformable IR for the kernel language
  • A frontend based on the analyzer
  • Serialization of kernel code

Getting Kernel

Checkout the repository and run pub get:

git clone https://github.com/dart-lang/kernel
cd kernel
pub get

Command-Line Tool

Run bin/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.

Example commands:

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

Pass the --link or -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.

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.

Testing

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

Linking from binary files is not yet implemented. In order to compile a whole program, currently everything must be compiled from source at once.