The case with 'int32' does not work yet, but the rest looks good. (And I groked how to test multiline input to the REPL).
$ perl6-m --version This is perl6 version 2015.02-151-g669f482 built on MoarVM version 2015.02-17-g86d0c68 $ (echo 'my int $t=4'; echo '$t') | perl6-m 4 4 $ (echo 'my int64 $t=4'; echo '$t') | perl6-m 4 4 $ (echo 'my int32 $t=4'; echo '$t') | perl6-m 4 Unhandled lexical type in lexprimspec for '$t'