evalable6

query

say ㉗++

result

(exit code 1) 
Cannot resolve caller postfix:<++>(Int:D); the following candidates
match the type but require mutable arguments:
    (Mu:D $a is rw)
    (Int:D $a is rw --> Int:D)
    (int $a is rw --> int)
    (uint $a is rw --> uint)
    (num $a is rw --> num)

The following do not match for other reasons:
    (Bool:D $a is rw)
    (Bool:U $a is rw --> Bool::False)
    (Mu:U $a is rw)
    (Num:D $a is rw)
    (Num:U $a is rw --> 0e0)
  in block <unit> at /tmp/iohZqDXAGf line 1