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Ceylon 1.3.2 is now available

Ceylon 1.3.2 is a significant minor release of the Ceylon language, with over 100 issues closed. This release introduces Ceylon assemblies, allows you toexport Ceylon modules as Maven repositories, makes it even easier than before to have a mixed Java and Ceylon project in Maven, allows string interpolation in assertions, and introduces lazy initialization for attributes. This release of Ceylon ...

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Ceylon 1.3.1 is now available

Ceylon 1.3.1 is a significant minor release of the Ceylon language, with over 140 issues closed. This is the first release of Ceylon which supports interoperation with Java 8 lambdas and streams, with RxJava, and with Spring Boot. This release also introduces support for static members. This release of Ceylon has been tested with a wide variety of Java libraries ...

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Ceylon 1.3.0 is now available

Ceylon 1.3.0 is a major release of the Ceylon language, with over 330 issues closed. This is the first release of Ceylon which supports Android development, the Node Package Manager (npm), and Wildfly Swarm. For the JVM, this release is backwards-compatible with all releases of Ceylon 1.2 (1.2.0 to 1.2.2). For JavaScript, this release is backwards-compatible only with the previous release ...

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Ceylon: Ceylon Bootstrap

Ceylon 1.2.2 was released back in March, and at the time it shipped with a new feature that did not make a lot of noise, but I think it’s worth explaining it a bit more in this blog. In general Ceylon developers have to download the Ceylon distribution in order to compile Ceylon code, and so do Ceylon users. When ...

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Status Report: Ceylon TypeScript Loader GSoC project

TL;DR: coming along, won’t be done in time for official GSoC deadline, I’ll just keep working. For this year’s Google Summer of Code, I am working on adding TypeScript support to the Ceylon JavaScript backend. The goal is to have a tool that, given a TypeScript module (one or more files), produces a Ceylon module for the JavaScript backend. The ...

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Modularity Changes

TL;DR: This article describes the modularity changes in the Ceylon run-time and distribution, in order to make them lighter at run-time. Skip to the Final runtime dependencies section if you just want the outcome. Ceylon has featured a modular architecture from the start. Not just for Ceylon users who write modules, but also within the Ceylon distribution. Historically we used ...

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Ceylon on Android

In my last post, I explained how you can use Ceylon in Apache Cordova to write applications for every mobile platform, including iOS and Android. This time, with many apologies for writing it late (“next week” turned into next month), I will explain how to use the Ceylon IntelliJ plugin to write native Android applications in Ceylon in Android Studio. ...

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Ceylon on mobile devices

Ceylon already runs on the JVM, whether bare-bones, via JBoss Modules, Vert.x, Java EE Servlet containers such as WildFly, or OSGi containers, as well as on JavaScript VMs such as Node.js and the browser. But today we’re going to explain how to run Ceylon on mobile devices, not just in the browser (though it does play a part in it), ...

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Ceylon: Object construction and validation

When porting Java code to Ceylon, I sometimes run into Java classes where the constructor mixes validation with initialization. Let’s illustrate what I mean with a simple but very contrived example. Some bad code Consider this Java class. (Try not to write code like this at home, kiddies!) public class Period { private final Date startDate; private final Date endDate; ...

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