Welcome to refcount hell. Fix the leaks reported by #57024

along with a bunch other named capture related leaks.

p4raw-id: //depot/perl@34151

diff --git a/regcomp.c b/regcomp.c
index 73fce85..f461fea 100644 (file)
--- a/regcomp.c
+++ b/regcomp.c
@@ -4985,13 +4985,11 @@ Perl_reg_named_buff_fetch(pTHX_ REGEXP * const r, SV * const namesv,
                 } else {
                     ret = newSVsv(&PL_sv_undef);
                 }
-                if (retarray) {
-                    SvREFCNT_inc_simple_void(ret);
+                if (retarray)
                     av_push(retarray, ret);
-                }
             }
             if (retarray)
-                return newRV((SV*)retarray);
+                return newRV_noinc((SV*)retarray);
         }
     }
     return NULL;
@@ -5088,6 +5086,7 @@ Perl_reg_named_buff_scalar(pTHX_ REGEXP * const r, const U32 flags)
             ret = CALLREG_NAMED_BUFF_ALL(r, (flags | RXapif_REGNAMES));
             av = (AV*)SvRV(ret);
             length = av_len(av);
+           SvREFCNT_dec(ret);
             return newSViv(length + 1);
         } else {
             Perl_croak(aTHX_ "panic: Unknown flags %d in named_buff_scalar", (int)flags);
@@ -5129,7 +5128,7 @@ Perl_reg_named_buff_all(pTHX_ REGEXP * const r, const U32 flags)
         }
     }
 
-    return newRV((SV*)av);
+    return newRV_noinc((SV*)av);
 }
 
 void

diff --git a/universal.c b/universal.c
index 84d13fc..be58760 100644 (file)
--- a/universal.c
+++ b/universal.c
@@ -1116,7 +1116,7 @@ XS(XS_re_regnames_count)
     SPAGAIN;
 
     if (ret) {
-        XPUSHs(ret);
+        mXPUSHs(ret);
         PUTBACK;
         return;
     } else {
@@ -1150,10 +1150,7 @@ XS(XS_re_regname)
     ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME));
 
     if (ret) {
-        if (SvROK(ret))
-            XPUSHs(ret);
-        else
-            XPUSHs(SvREFCNT_inc(ret));
+        mXPUSHs(ret);
         XSRETURN(1);
     }
     XSRETURN_UNDEF;    
@@ -1206,8 +1203,11 @@ XS(XS_re_regnames)
         if (!entry)
             Perl_croak(aTHX_ "NULL array element in re::regnames()");
 
-        XPUSHs(*entry);
+        mXPUSHs(SvREFCNT_inc_simple_NN(*entry));
     }
+
+    SvREFCNT_dec(ret);
+
     PUTBACK;
     return;
 }
@@ -1326,10 +1326,7 @@ XS(XS_Tie_Hash_NamedCapture_FETCH)
     SPAGAIN;
 
     if (ret) {
-        if (SvROK(ret))
-            XPUSHs(ret);
-        else
-            XPUSHs(SvREFCNT_inc(ret));
+        mXPUSHs(ret);
         PUTBACK;
         return;
     }
@@ -1453,7 +1450,7 @@ XS(XS_Tie_Hash_NamedCapture_FIRSTK)
     SPAGAIN;
 
     if (ret) {
-        XPUSHs(SvREFCNT_inc(ret));
+        mXPUSHs(ret);
         PUTBACK;
     } else {
         XSRETURN_UNDEF;
@@ -1485,7 +1482,7 @@ XS(XS_Tie_Hash_NamedCapture_NEXTK)
     SPAGAIN;
 
     if (ret) {
-        XPUSHs(ret);
+        mXPUSHs(ret);
     } else {
         XSRETURN_UNDEF;
     }  
@@ -1516,7 +1513,7 @@ XS(XS_Tie_Hash_NamedCapture_SCALAR)
     SPAGAIN;
 
     if (ret) {
-        XPUSHs(ret);
+        mXPUSHs(ret);
         PUTBACK;
         return;
     } else {