# New Ticket Created by Stephane Payrard # Please include the string: [perl #54478] # in the subject line of all future correspondence about this issue. # <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=54478 >
Request for enhancement: At the PIR level, trace should be a number that can be decremented and incremented with two new opcodes inc_trace and dec_trace. trace mode would be active when the trace variable is strictly positive. This is useful for tracing recursive calls. A :trace flag should be implemented for routine and methods to prepend inc_trace and append dec_trace. A the Perl6 level, this could be a trait 'is :pirtrace' and and 'is :pirtrace<rec>. for functions and methods. :pirtrace would cause subcalls to be wrapped: trace 0; subcall(); trace 1. :pirtrace would cause a whole method function PIR code wrapped by inc_trace and dec_trace. -- cognominal stef
