Ha. Is there a high performance, compiled, and concurrent friendly language that looks like Ruby? Please share. :)
I think better advice for you is to just stay away from opinionated languages. I don't think Rust falls into that category, but I'm not sure.
Sorry, but the C syntax is dominating the native-compiled world. You could try Pascal, they have "end". Or use C with preprocessor magic:
#define END ;}
If you mean Ruby like terse, generic code, then try Rust, Go, and D.https://github.com/manastech/crystal
It is still an ongoing development, though.