Bunny - A Haskell compiler for Android

Bunny is a Haskell compiler to build applications for Android. The current release of the prototype (version 0.9.0) is far from complete, however, it is planned to meet the specification of Haskell 2010 language report.

For more information visit the project webpage.

Build environment requirements

Bunny can be built on Windows (MINGW) or Linux with GHC (Haskell Platform). In addition to what is included in the Haskell Platform, the following tools and libraries must be installed beforehand.

• Tools
  • GNU Make
  • HLint
  • Alex
  • Happy
• Libraries
  • ansi-wl-pprint
  • optparse-applicative

To make Android applications with Bunny, Android Studio and Android SDK Platform Tools are needed.

After installing Android Studio, you have to create at least one project on your system because Bunny needs local.properties file of it.

And you need to add jre/bin of the Android Studio and platform-tools of the Android SDK Platform Tools into your PATH environment variable. By doing this, javac, java and adb can be found in the PATH like the following example.

# On Windows (MINGW)
$ which javac
/c/Program Files/Android/Android Studio/jre/bin/javac
$ which java
/c/Program Files/Android/Android Studio/jre/bin/java
$ which adb
/c/Users/<user name>/android/platform-tools/adb

# On Linux
$ which javac
/home/<user name>/android-studio/jre/bin/javac
$ which java
/home/<user name>/android-studio/jre/bin/java
$ which adb
/home/<user name>/Android/Sdk/platform-tools/adb

Building

The Bunny project is built with GNU Make.

cd compiler
make

When succeeded, you can run the sample program on the same system you build Bunny.

bin/bunny testrun Hello.hs

This will print the following message.

Hello, World!

Installing

Before installing Bunny to your system, you have to import local.properties from an Android Studio project. This can be done like the following. MyFirstApp is just an example, and please use the name of the project that you created by the Android Studio.

cp ~/AndroidStudioProjects/MyFirstApp/local.properties AndroidProjectPrototype/

Then you can install Bunny with ./install.sh. The installation directory will be $HOME/bunny/0.9.0 by default. If you want to change this, specify the path as an argument of ./install.sh.

./install.sh

As the ./install.sh will not change your PATH environment variable, the directory should be added manually to your PATH.

Usage

bunny android <source-file>

bunny android sample/Hello.hs
cd ~/BunnyProjects/Hello
./gradlew assembleDebug

License

Bunny (except the Typing module) is distributed under the terms of the MIT License, see LICENSE.txt.

The Typing module (Typing module) is based on `Typing Haskell in Haskell', and distributed under the terms in the file License-Thih.txt.