ralph hypothesized:
My imagination suggests to me that in a typical short perl 6 script, between 20% and 50% of all sub defs would use the upscope topic... ;>
That's some imagination you've got there! ;-)
My estimate (based on the -- not inconsiderable -- code base of my own modules) is closer to 5%. But that's beside the point. The two factors that nix this idea IMHO are that: * Putting a non-parameter in the parameter list is Just Plain Wrong * Using a single character to denote the use of an upscope topic is insufficiently obvious (regardless of which character is used for the purpose) Damian