Loglan'82
Loglan'82
(language)Supported object-oriented programming features includeclasses, objects, coroutines, processes (in Loglan'82processes are objects which are able to act in parallel),inheritance, exception handling, and dynamic arrays.
Loglan'82 is apparently unrelated to Loglan.
http://univ-pau.fr/~salwicki/loghome.html.
A cross-compiler to C is here.