doppio is a double shot of espresso. In this case it's also a JVM written in TypeScript.
To try doppio now, head to the live demo page.
To learn more, head to the doppio wiki.
You can also get in touch via our mailing list or via the IRC channel #plasma-umass on Freenode.
Before attempting to build doppio, you must have the following installed:
- Node v0.10 or higher
- NPM packages
npm install -g grunt-cli bower
- Java 6 JDK
If you are on Windows, you will need the following installed:
- Git (must be on your PATH)
- Python (must be on your PATH)
- A version of Visual Studio
Run the following commands to build doppio. Note that your first time building may take some time, as the build script will download the entire Java Class Library.
git clone https://github.com/int3/doppio.git cd doppio npm install bower install grunt release
To run doppio on localhost:
grunt dev tools/server.coffee --dev
To get the optimized release version:
grunt release tools/server.coffee --release
Then point your browser to http://localhost:8000/.
To include your own code in the browser without manually uploading each file,
.class files in a directory under
grunt dev or
grunt release to re-generate
#in shell cp -ivR /path/to/my/class/files/ classes/my-classes/ #in browser java -cp /sys/classes/my-classes my/package/MyClass
You can also run JAR files in the browser, e.g.:
java -jar /path/to/jar.jar # Or if you don't want to run the JAR file's main class... java -cp /path/to/jar.jar package.MyClass
doppio can also be run from the console. For example:
grunt dev-cli node build/dev-cli/console/disassembler.js classes/demo/Fib # doppio-dev -> node build/dev/console/runner.js ./doppio-dev classes/demo/Fib ./doppio-dev classes/demo/Fib 7 # pass an argument to the JVM ./doppio-dev -jar my_application.jar # extract and run a JAR
To get the optimized version, use
grunt release-cli. The build products can be
build/release-cli, and the runtime can be invoked via
To automatically rebuild doppio while you modify files, run the following command:
grunt release watch
This will perform a complete build of doppio, and then will watch files to trigger partial rebuilds.
Run all tests:
Run a specific test, or test with different options:
node build/dev-cli/console/test_runner.js -h node build/dev-cli/console/test_runner.js classes/test/Strings