crystal - 1.14.0+dfsg-1 main

The Crystal's language syntax is inspired by Ruby, the language is statically
type-checked but does not require that the type of variables or method
arguments be specified.
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The language has the following goals: (1) have the same syntax as Ruby, or at
least as similar as possible; (2) statically type-checked but without having
to specify the type of variables or method arguments; (3) be able to call C
code by writing bindings to it in Crystal; (4) have compile-time evaluation
and generation of code, to avoid boilerplate code; (5) compile to efficient
native code.