Golo is computer

software Software is a set of computer programs and associated software documentation, documentation and data (computing), data. This is in contrast to Computer hardware, hardware, from which the system is built and which actually performs the work. ...

, a

programming language A programming language is a system of notation for writing computer programs. Most programming languages are text-based formal languages, but they may also be graphical. They are a kind of computer language. The description of a programming ...

for the Java virtual machine (JVM). It is simple, with

dynamic Dynamics (from Greek δυναμικός ''dynamikos'' "powerful", from δύναμις ''dynamis'' "power") or dynamic may refer to: Physics and engineering * Dynamics (mechanics) ** Aerodynamics, the study of the motion of air ** Analytical dyna ...

, weak typing. It was created in 2012 as part of the research activities of the DynaMid group of the Centre of Innovation in Telecommunications and Integration of service (CITI) Laboratory at

Institut national des sciences appliquées de Lyon An institute is an organisational body created for a certain purpose. They are often research organisations (research institutes) created to do research on specific topics, or can also be a professional body. In some countries, institutes can ...

(INSA). It is distributed as free and open-source software under the

Eclipse Public License The Eclipse Public License (EPL) is a free and open source software license most notably used for the Eclipse IDE and other projects by the Eclipse Foundation. It replaces the Common Public License (CPL) and removes certain terms relating to ...

2.0.

History

It has been built as a showcase on how to build a language runtime with invokedynamic. Golo is largely interoperable with the programming language

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's mos ...

and other

JVM languages This list of JVM Languages comprises notable computer programming languages that are used to produce computer software that runs on the Java virtual machine (JVM). Some of these languages are interpreted by a Java program, and some are compiled ...

(e.g., numeric types are boxing classes from java.lang, and collection literals leverage java.util classes), that runs on the JVM. In June 2015, Golo became an official

Eclipse Foundation The Eclipse Foundation AISBL is an independent, Europe-based not-for-profit corporation that acts as a steward of the Eclipse open source software development community, with legal jurisdiction in the European Union. It is an organization suppo ...

project. The project was terminated in September 2022.

Technical details

The language features have been initially designed around the abilities of invokedynamic – JSR 292 that appeared in Java SE 7. Golo uses ahead-of-time compilation of

bytecode Bytecode (also called portable code or p-code) is a form of instruction set designed for efficient execution by a software interpreter. Unlike human-readable source code, bytecodes are compact numeric codes, constants, and references (norma ...

. While the bytecode remains stable over a program execution, the invokedynamic-based reconfigurable call sites support the adaptive dispatch mechanisms put in place for helping the HotSpot

just-in-time compiler In computing, just-in-time (JIT) compilation (also dynamic translation or run-time compilations) is a way of executing computer code that involves compilation during execution of a program (at run time) rather than before execution. This may cons ...

(JIT) to extract reasonable performance.

Publications

* Baptiste Maingret, Frédéric Le Mouël, Julien Ponge, Nicolas Stouls, Jian Cia and Yannick Loiseau. Towards a Decoupled Context-Oriented Programming Language for the Internet of Things. To appear in th
7th International Workshop on Context-Oriented Programming
hosted at ECOOP 2015. Prague, Czech Republic. July 2015. * Julien Ponge, Frédéric Le Mouël, Nicolas Stouls, Yannick Loiseau. Opportunities for a Truffle-based Golo Interpreter. Technical report''
arXiv:1505.06003 (cs.PL)
an
HAL-INRIA deposit
* Julien Ponge, Frédéric Le Mouël and Nicolas Stouls. Golo, a Dynamic, Light and Efficient Language for Post-Invokedynamic JVM. In Procs. o

Stuttgart, Germany. September 2013
DOI linkHAL-INRIA depositSlides

References

* * * * ]

External links

* {{Official website, golo-lang.org
Golo at GitHub repository

Golo incubation page at Eclipse.org

Eclipse integration for Golo

Netbeans module to support Golo
Programming languages JVM programming languages Software using the Eclipse license

History

Technical details

Publications

See also

References

External links