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Ceylon compiler (ceylonc: Java backend), Ceylon documentation generator (ceylond) and Ceylon ant tasks.
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.ceylon utf8
.externalToolBuilders Array types now get their underlyingTpye set when their component typ…
bin bin/ceylon: switch to use System.console() rather than istty #1506
doc Issue #882: Let's start some kind of documentation of the optimizatio…
langtools Issue #2047: langtools: Change Gen to attribute method invocations an…
lib Updated to latest version of txtmark
src Improved info tool reporting a bit
test Issue #1928: Enable the tests because it is now passing.
.classpath Harmonized naming of Ceylon test suite files and updated Eclipse
.gitattributes Added `.gitattributes` to make sure everybody uses LF line endings
.gitignore utf8
.project .project: removed allSources since I still have no idea what that's for Add Java code and document discussing Issue #299
LICENSE Adding GPLv2 + classpath exception license from OpenJDK
NOTICE Updated NOTICE for #500
README.eclipse README.eclipse: fix #1497: add instructions to install ceylon-runtime Fixed README to point to the correct Ceylon distribution build instru…
README.tests Fixed README files Changes becasue of the update to a newer version of "sardine" and its…
build.xml Fixed errors when compiling using Java 8 (#1690)

Ceylon compiler and tools


The content of this repository is released under the GPL v2 + Classpath Exception as provided in the LICENSE file that accompanied this code.

By submitting a "pull request" or otherwise contributing to this repository, you agree to license your contribution under the license mentioned above.

License terms for 3rd Party Works

This software uses a number of other works, the license terms of which are documented in the NOTICE file that accompanied this code.

Directory structure

  • bin - the Ceylon tools binaries
  • lib - compile/runtime dependencies
  • src - the Ceylon compiler backend sources
  • langtools - the OpenJDK Javac compiler sources
  • test - the Ceylon compiler backend unit tests

Build the compiler and tools

For setting up the development environment and compiling and building the distribution take a look at ceylon-dist.

If after having built the distribution you want to build and test the compiler return to ceylon-compiler and run

ant clean publish

To run the tests type

ant test

Note that some of the tests currently fail. See more info in README.tests.

Once built, the compiler lives in this jar:


If you want to build and run the Ceylon compiler in Eclipse then please see README.eclipse for setup instructions.

Running the compiler

For help on the usage of the ceylon compiler you can either type

ceylon help compile

or you can go to the online documentation for ceylon compile

Building the project on Mac with JDK7

1) Download JDK7:

2) Unpack .dmg

3) export JAVA_HOME

Skywalker:ceylon-compiler alesj$ export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_08.jdk/Contents/Home/

Skywalker:ceylon-compiler alesj$ java -version
java version "1.7.0_06-ea"
Java(TM) SE Runtime Environment (build 1.7.0_06-ea-b12)
Java HotSpot(TM) 64-Bit Server VM (build 23.2-b03, mixed mode)

4) Build it (ant clean publish)

    [copy] Copying 2 files to /Users/alesj/.ceylon/repo/com/redhat/ceylon/compiler/java/0.6
    [copy] Copying 2 files to /Users/alesj/.ceylon/repo/com/redhat/ceylon/ant/0.6


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