Fantom (programming language). Fantom is a general-purpose object-oriented programming language, created by Brian Frank and Andy Frank. It runs on the Java Runtime Environment (JRE), JavaScript, and the .NET Common Language Runtime (CLR) (.NET support is considered "prototype" status). Its stated goal is to provide a standard library API. Fantom uses a curly brace syntax, supports functional programming through closures and concurrency through the Actor model, and blends aspects of both static and dynamic typing.

The original name of the Fantom programming language was Fan, named after the neighborhood in which the creators live in Richmond, Virginia. In November 2009, the name of the project was officially changed from Fan to Fantom due to searchability concerns raised by its community.

Fantom is open source under Academic Free License 3.0 and is available for Windows and Unix-like platforms (including Mac OS X).

Features and systems 
All variables in Fantom are statically typed, as it does not have generic types, but it does have a set of built-in generic types: List, Map, and Func. Fantom also supports dynamic calls and automatic downcasting. Fantom has a reflection API and metaprogramming capabilities.

Fantom supports imports of Java Classes and modules with some limitations. Its integer is 64-bit. Unlike Java and C#, Fantom does not have Long or Short integer types. Fantom also does not support tuples.

In Fantom, the unit of deployment is called a pod. Pods take on the role of namespaces, packages, and modules. They are stored as .pod files, which are zip files containing the FCode (the Fantom bytecode), the documentation, and resource files necessary to run the pod. The Fantom build system can package a set of pods into a JAR archive through build::JarDist.

Integrated development environment 
F4 is the main publicly available IDE for the Fantom language, officially supported by one of the main open-source contributors to the language, Steve Eynon. The F4 IDE is available on GitHub.

Fantom Widget Toolkit 
Fantom ships with a standard windowing toolkit called the Fantom Widget Toolkit, or FWT for short. FWT was designed to be portable across several platforms. It is currently implemented on the JVM using the Standard Widget Toolkit as a backend. The JavaScript implementation is backed by the canvas element and JavaFX, allowing FWT applications to be run in a web browser. There are plans for a CLR implementation using Windows Forms.

Usage 
Escape the Mainframe is a browser game (just like the Google t-rex dinosaur) completely written in Fantom by Steve Eynon.

See also 

 Boo
 Ceylon
 Gosu
 Apache Groovy
 Kotlin
 Ruby

References

Further reading

External links 
 
 Open source website: https://fantom-lang.org/download
 Open source repository for Fantom libraries https://eggbox.fantomfactory.org/
 Fantom portfolio https://fantom-lang.org/portfolio
 Not a Fan of Scala? An Evolutionary Approach | Ajaxonomy  - blog post discussing Fan
 Fan of a New Language | SD Times
 Re: Fan Programming Language (jvm-languages@googlegroups.com mailing list) a forum post by one of Fantom's authors.
 The Next Big JVM Language, a conversation with Stephen Colebourne by Bill Venners.
 Language reference page at LangRef.org

Object-oriented programming languages
Statically typed programming languages
JVM programming languages
.NET programming languages
Programming languages created in 2005
Software using the Academic Free License