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Programming language: Crystal
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README

Crystal

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born-and-raised

Crystal is a programming language with the following goals:

  • Have a syntax similar to Ruby (but compatibility with it is not a goal)
  • Statically type-checked but without having to specify the type of variables or method arguments.
  • Be able to call C code by writing bindings to it in Crystal.
  • Have compile-time evaluation and generation of code, to avoid boilerplate code.
  • Compile to efficient native code.

Why?

We love Ruby's efficiency for writing code.

We love C's efficiency for running code.

We want the best of both worlds.

We want the compiler to understand what we mean without having to specify types everywhere.

We want full OOP.

Oh, and we don't want to write C code to make the code run faster.

Project Status

Crystal is still under heavy development. There can be breaking changes but we're trying to keep them as minimum as possible.

The development is possible thanks to the community's effort, 84codes' support, and every BountySource supporter.

Installing

Follow these instructions

Try it online

play.crystal-lang.org

Documentation

Community

Questions or suggestions? Ask on the Crystal Forum, on our Gitter channel or IRC channel #crystal-lang at chat.freenode.net, or on Stack Overflow under the crystal-lang tag. There is also an archived Google Group.

Contributing

Read the general Contributing guide, and then:

  1. Fork it (https://github.com/crystal-lang/crystal/fork)
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request