Bug #97782 for Kavorka: Kavorka signature bug

The "--" part is taken to be a post-decrement operator on the "1". When you supply a default value for a parameter, you can use operators in that default; e.g. fun blah ($a=1, $b=2+2) { ... } The expression is parsed as an "arithexpr". If you look at the list of operators under "Operator Precedence and Associativity" in perlop, that's everything up to and including the bitshift operators "<<" and ">>". An arithexpr needs to be terminated by something like a comma or a closing bracketing character. So a workaround could be something like: fun test(Num $a, :$b = 1, ... --> Num ){} This means you sacrifice argument count checking though. :-(