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==Description==
Although resembling the Ruby programming language in syntax, Crystal compiles to much more efficient native code using an [[LLVM]] backend, at the cost of disallowing the dynamic aspects of Ruby. However, the advanced global type inference used by the Crystal compiler, combined with the usage of [[union type]]s, give Crystal the feel of a higher-level scripting language than many other comparable programming languages. Recent benchmarks have demonstrated that Crystal has a performance broadly similar to [[C (programming language)|C]] for a wide range of computing tasks.<ref>[https://github.com/kostya/benchmarks Some benchmarks of different languages]</ref><ref>[https://github.com/kostya/crystal-benchmarks-game Crystal implementations for The Computer Language Benchmarks Game]</ref><ref>[https://github.com/smarr/are-we-fast-yet/tree/master/benchmarks/Crystal Are We Fast Yet?]</ref> The language has automated garbage collection and currently offers a [[Boehm garbage collector|Boehm collector]]. Crystal possesses a macro system and supports generics and method and operator overloading. Crystal's concurrency model is inspired by [[communicating sequential processes]] (CSP), and implements light-weight fibers and channels (for communicating between fibers) inspired by the [[Go (programming language)|Go programming language]].
== Examples ==
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