Ceylon – language for writing large programs in teams

Ceylon is an open source language for writing large programs in teams that is influenced by Java. It is a “higher-order” language partly because functions, classes, methods, and attributes are typed values, and provides a typesafe metamodel.

It has a powerful static type system that prevents many bugs while letting you express more, more easily: union types, intersection types, higherorder functions, mixin inheritance, and enumerated types.

It is a whole platform with a modern SDK designed from scratch. It runs on both Java and JavaScript virtual machines, bridging the gap between client and server. Ceylon is fully interoperable with Java and the Java SDK.

Features include:

• Prioritizes readability, via a highly regular syntax which is derived from C.
• Support for Java and JavaScript virtual machines.
• Powerful static type system that prevents many bugs.
• Declarative syntax for treelike structures.
• Union types, intersection types, higher order functions, mixin inheritance, and enumerated types.
• Polymorphic attributes.
• Type aliases and type inference.
• Higher-order functions.
• Tuples – a kind of linked list, where the static type of the list encodes the static type of each element of the list.
• Declaration-site variance.
• Rich set of operators, including most of the operators supported by C and Java.
• Typesafe null and flow-dependent typing.
• Support for modules.
• Complete platform with a modern, modular SDK designed from scratch.
• Compiler produces module archives which are then distributed via a next-generation repository architecture with Ceylon Herd.
• Complete command line toolset, and a very complete Eclipse based IDE with searching, refactoring, quick fixes and assists, autocompletion, debugging, and more.
• Interoperability with Maven repositories, so that you can use Maven modules as if they were Ceylon modules.

Website: github.com/eclipse-archived/ceylon
Support:
Developer: Red Hat
License: Apache License v2

Return to New Programming Languages

Explore Linux
	Best Free and Open Source Software - A huge collection of recommended free and open source software covering every major category.
	In-depth Linux Software Reviews - Detailed assessments of Linux software covering features, usability and overall quality.
	The Big List of Active Linux Distros - An extensive collection of actively developed Linux distributions.
	Open Source Alternatives - Alternatives to software and services from Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle and others.
	Essential Linux System Tools - Indispensable utilities for monitoring, maintaining and managing Linux systems.
	Linux Productivity Tools - Useful utilities for improving productivity and streamlining everyday tasks.
	Alternatives to Popular CLI Tools - Modern alternatives to familiar command-line utilities supplied with Linux systems.
	Awesome Free Linux Game Tools - Tools, utilities and companion software that improve gaming on Linux.
	Machine Learning on Linux - Machine learning and deep learning software, self-hosted applications and practical tools.
	Saving Money with Linux - Practical ways to reduce electricity consumption and lower computing costs with Linux.
	Linux Candy - Fun, entertaining and sometimes delightfully quirky software from the lighter side of Linux.