Add a GV_NOADD_NOINIT flag to gv_fetch{pv,pvn,sv} that disables

addition of new typeglobs, and also disables initialisation of any
typeglob placeholders. Needed to make the new constant subroutine
proxy references work efficiently.

p4raw-id: //depot/perl@26425

1 files changed, 3 insertions, 2 deletions

diff --git a/gv.c b/gv.c
index 97c344809a..9e4dcad977 100644
--- a/gv.c
+++ b/gv.c
@@ -722,7 +722,8 @@ Perl_gv_fetchpvn_flags(pTHX_ const char *nambeg, STRLEN full_len, I32 flags,
     I32 len;
     register const char *namend;
     HV *stash = 0;
-    const I32 add = flags & ~SVf_UTF8;
+    const I32 no_init = flags & (GV_NOADD_NOINIT | GV_NOINIT);
+    const I32 add = flags & ~SVf_UTF8 & ~ GV_NOADD_NOINIT;
 
     PERL_UNUSED_ARG(full_len);
 
@@ -887,7 +888,7 @@ Perl_gv_fetchpvn_flags(pTHX_ const char *nambeg, STRLEN full_len, I32 flags,
 		require_errno(gv);
 	}
 	return gv;
-    } else if (add & GV_NOINIT) {
+    } else if (no_init) {
 	return gv;
     }