Re^2: Perl_API get_sv and SvIV

Ah, you are completely correct and it works happily. However I wonder if you could answer another question. I am trying to find an op that gets called at the 'end' of every loop, just before the next iteration begins. Is there any such beast? The B module seems to imply that pp_redo is called, but in my tests it doesn't seem to be. Any ideas?

Comment on Re^2: Perl_API get_sv and SvIV_set

Replies are listed 'Best First'.
Re^3: Perl_API get_sv and SvIV_set by Util (Priest) on Apr 17, 2006 at 02:10 UTC
It sounds like you are looking for the opcode equivalent of the 'continue' statement. From a casual look at the differences in the output of these two commands: `perl -MO=Concise -e 'while ($z == 1) { $x=2;} continue {$y=3;}' perl -MO=Concise -e 'while ($z == 1) { $x=2;}'` [download] I would guess that the opcode is 'pp_next'.	[reply] [d/l]
Re^4: Perl_API get_sv and SvIV_set by BUU (Prior) on Apr 17, 2006 at 03:01 UTC
Well, I modified pp_next by adding a "DIE" call in the middle of it but no loop I tried could trigger it. Doesn't seem to be the one I want.	[reply]
Re^5: Perl_API get_sv and SvIV_set by diotalevi (Canon) on Apr 17, 2006 at 04:47 UTC
There is no such op. If you add a continue block, you'll notice that lineseq has three arguments/statements instead of just two. If you want to run something at the end of every loop, alter the optree to wire your op in. ⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊	[reply]
Re^6: Perl_API get_sv and SvIV_set by BUU (Prior) on Apr 17, 2006 at 09:41 UTC
Re^7: Perl_API get_sv and SvIV_set by diotalevi (Canon) on Apr 17, 2006 at 15:19 UTC
Re^7: Perl_API get_sv and SvIV_set by m.att (Pilgrim) on Apr 17, 2006 at 14:38 UTC


laziness, impatience, and hubris
	PerlMonks

Re^2: Perl_API get_sv and SvIV_set