$obj.?method returns Nil, not undef.

rakudo · Jun 26, 2010 · d401972 · d401972
1 parent fd5e2e7
commit d401972
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/core/List.pm b/src/core/List.pm
@@ -61,7 +61,7 @@ augment class List does Positional {
 
         # If &by.arity < 2, then it represents a block to be applied
         # to the elements to obtain the values for sorting.
-        if (&by.?arity // 2) < 2 {
+        if (&by.?count || 2) < 2 {
             my $list = self.map(&by).eager;
             self[$index_rpa.sort(
                 -> $a, $b { $list[$a] cmp $list[$b] || $a <=> $b }