Re: RFC 118 (v1) lvalue subs: parameters, explicit assignment, andwantarray() changes

[Damian Conway]

   > DC> However, I have given thought to allowing conditions to be grouped,
   > DC> and de-activated by group. This would probably meet your need.
   > 
   > DC>        pre mymethod : group("safe-coding practice") { @_ > 0 }
   > DC>        pre mymethod : group("debugging") { print @_, "\n"; }
   > 
   > Makes it difficult to specify on the command line. Unless you have
   > another way of matching them to higherarchy or perhaps a cost level?

There would be a 'contract' pragma:

        use contract qw("safe-coding practice");

        no contract qw("debugging");

        no contract;    # turn everything off (production code)

Damian