Gosu (programming language)

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Gosu

Developer	Guidewire and open source contributors
Stable release	1.18.1[1]  / 8 July 2024; 4 months ago (8 July 2024)
Typing discipline	static
Platform	Execute on the Java Virtual Machine, statically and dynamically compiles to bytecode
OS	any supporting JVM
License	Apache License 2.0
Filename extensions	.gs, .gsp, .gst, .gsx
Website	gosu-lang.github.io
Influenced by
Java, C#
Influenced
Kotlin

Gosu is a statically typed general-purpose programming language that runs on the Java Virtual Machine. Its influences include Java, C#, and ECMAScript. Development of Gosu began in 2002 internally for Guidewire Software, and the language saw its first community release in 2010 under the Apache 2 license.^[2]

Gosu can serve as a scripting language, having free-form Program types (.gsp files) for scripting as well as statically verified Template files (.gst files). Gosu can optionally execute these and all other types directly from source without precompilation, which also distinguishes it from other static languages.