On Thu, Oct 27, 2005 at 05:28:36PM +0200, Leopold Toetsch wrote: > Patrick R.Michaud (via RT) wrote: > > >.sub main :main > > $P0 = open "sf8-sub.pir", "<" > > $S0 = read $P0, 65535 > > > > $P1 = compreg "PIR" > > $P1($S0) > > The return result of the compilation (an Eval PMC) isn't stored anywhere > and get's GCed. This also kills the compiled subroutine. > > $P2 = $P1($S0) > register $P2 # or store_global ... > > This is maybe not the correct way to deal with compiled code, OTOH: > Parrot doesn't know anything about the planned life-time of the compiled > code and keeping it alive by default might be as undesriable.
FWIW, I think the "natural" expectation is that a compiled sub (and its associated Eval PMC) will both remain alive through the global symbol table entry until it's released -- either by removing the symbol table entry or replacing it with a different PMC. If a compiled sub is marked :anon, then it doesn't create an entry in the global symbol table and is therefore GCed as normal -- generally around the time the Eval PMC gets GCed (i.e., when there are no more live references to the Eval PMC). But now that I know what is happening, I can work with whatever gets decided. Many thanks for the quick fixes, Pm
