



Enter "Juby". Juby is intended to be basically like Duby, in that it uses Java's types and Ruby's syntax. But it takes advantage of the new invokedynamic opcode to be 100% dynamic. Juby is a dynamic Duby, or perhaps a dynamic Java with Ruby syntax. It's not hard to comprehend.





But the name was a problem. Juby sounds like "Jewbie", a pejorative term for a Jewish person. So I sent out a call for names to the Twitterverse, ultimately ending up with far more names than I could choose from.





Syringa vulgaris. The genus "Syringa" is derived from New Latin, based on a Greek word "surinx" meaning "shepherd's pipe" from the use of the Syringa plant's hollow stems to make pipes. Perhaps Surinx is building on the "hollow stem" of the JVM to produce something you can smoke (other dynamic languages) with. Combined with its cousin "Duby", we have quite a pair. The name I have chosen, Surinx , has a simple story attached. You see, when James Gosling created Java, he originally named it "Oak", after the tree outside his window. So I followed his lead; the tree (a bush, really) outside my window is a lilac,. The genus "Syringa" is derived from New Latin, based on a Greek word "surinx" meaning "shepherd's pipe" from the use of theplant's hollow stems to make pipes. Perhaps Surinx is building on the "hollow stem" of the JVM to produce something you can smoke (other dynamic languages) with. Combined with its cousin "Duby", we have quite a pair.





And in other news, the simple Surinx implementation of "fib" below (identical to Ruby) manages to run fib(40) in only 7 seconds on current MLVM (OpenJDK7 + invokedynamic and other tidbits), a five-fold improvement over JRuby's fastest mode (jruby --fast).

def fib(a)

if a < 2

a

else

fib(a - 1) + fib(a - 2)

end

end

In June of this year, I spent a few hours formulating a dynamic cousin to Duby . Duby, if you don't remember, is a static-typed language with Ruby's syntax and Java's type system. Duby supports all Ruby's literals, uses local type inference (only argument types *must* be declared), and runs as fast as Java (because it produces nearly identical bytecode). But with the advent of invokedynamic, Duby needed a playmate.Given that JRuby has started to support invokedynamic, the solid performance of Surinx bodes very well for JRuby's future.Please welcome Surinx to your language repertoire!