Asger Feldthaus
2e718613aa
Some of the kernel unit tests can now be run using: tools/test.py -cdartk -rself_check language co19 This will search the pkg/ folder for files matching *_self_check.dart and run each program with the compiled output as argument. If there is no compiler, the test case itself is given as argument. These testers are always run in batch-mode. This type of test has no expected output, but is intended to check itself by testing that certain invariants are not violated while processing the given data set. The 'self_check' runtime is not specifically tied to kernel, although only kernel is using it at the moment. There is also a new option --skip-compilation which skips the compiler step. It doesn't interact nicely with the status files, but can still be useful for a quick offline test. Current limitations: - All self-check tests are treated as the same test case. If one fails, the remaining self-check testers don't run for that input. - There is no way to run a subset of the self-check tests, or filter them based on what compiler was used. - Tests that are expected to fail in the compiler show up as errors when skipping compilation. BUG= R=kustermann@google.com, whesse@google.com Review-Url: https://codereview.chromium.org/2549793002 .
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.