Doppio is a double shot of espresso. In this case it's also a JVM written in Coffeescript.
It began life as a Mid-term project for CS 691ST, Spring 2012 at UMass Amherst.
To try Doppio now, head to the live demo page.
git clone https://github.com/int3/doppio.git
cd doppio
tools/setup.sh
To run Doppio on localhost:
make dev
tools/webrick.rb --dev
To get the optimized release version:
make release
tools/webrick.rb --release
Then point your browser to http://localhost:8000/.
The code can also be run from the console. For example:
make dev-cli
node build/dev/console/disassembler.js classes/demo/Fib
# doppio-dev -> node build/dev/console/runner.js
./doppio-dev classes/demo/Fib
./doppio-dev classes/demo/Fib --java 7 # passes an argument to the JVM
./doppio-dev --jar my_application.jar # extracts and runs a JAR
To get the optimized version, use make release-cli. The build products can be
found in build/release, and the runtime can be invoked via ./doppio.
bundle exec guard -i -g release # automates `make release-cli`
bundle exec guard -i -g dev # automates `make dev-cli`
The front-end currently lacks an auto-rebuild system.
Run all tests:
make test -j4
Run a specific test, or test with different options:
console/test_runner.coffee -h
console/test_runner.coffee classes/test/Strings