In Perl_sv_compile_2op(), remove a suggestion to merge code with pp_entersub.

Add a comment explaining the problems with this function.

1 files changed, 8 insertions, 1 deletions

diff --git a/pp_ctl.c b/pp_ctl.c
index 742bc3df26..de3487998f 100644
--- a/pp_ctl.c
+++ b/pp_ctl.c
@@ -2896,13 +2896,20 @@ S_docatch(pTHX_ OP *o)
     return NULL;
 }
 
+/* James Bond: Do you expect me to talk?
+   Auric Goldfinger: No, Mr. Bond. I expect you to die.
+
+   This code is an ugly hack, doesn't work with lexicals in subroutines that are
+   called more than once, and is only used by regcomp.c, for (?{}) blocks.
+
+   Currently it is not used outside the core code. Best if it stays that way.
+*/
 OP *
 Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp)
 /* sv Text to convert to OP tree. */
 /* startop op_free() this to undo. */
 /* code Short string id of the caller. */
 {
-    /* FIXME - how much of this code is common with pp_entereval?  */
     dVAR; dSP;				/* Make POPBLOCK work. */
     PERL_CONTEXT *cx;
     SV **newsp;