PVIOs don't use the SvIVX slot.

diff --git a/dump.c b/dump.c
index 70efde4..54999ad 100644 (file)
--- a/dump.c
+++ b/dump.c
@@ -1587,7 +1587,8 @@ Perl_do_sv_dump(pTHX_ I32 level, PerlIO *file, SV *sv, I32 nest, I32 maxnest, bo
        return;
     }
     if ((type >= SVt_PVIV && type != SVt_PVAV && type != SVt_PVHV
-        && type != SVt_PVCV && !isGV_with_GP(sv) && type != SVt_PVFM)
+        && type != SVt_PVCV && !isGV_with_GP(sv) && type != SVt_PVFM
+        && type != SVt_PVIO)
        || (type == SVt_IV && !SvROK(sv))) {
        if (SvIsUV(sv)
 #ifdef PERL_OLD_COPY_ON_WRITE

diff --git a/ext/Devel-Peek/t/Peek.t b/ext/Devel-Peek/t/Peek.t
index 4a4d274..aeb36d0 100644 (file)
--- a/ext/Devel-Peek/t/Peek.t
+++ b/ext/Devel-Peek/t/Peek.t
@@ -616,7 +616,7 @@ do_test(25,
   SV = PVIO\\($ADDR\\) at $ADDR
     REFCNT = 3
     FLAGS = \\(OBJECT\\)
-    IV = 0
+    IV = 0                                     # $] < 5.011
     NV = 0                                     # $] < 5.011
     STASH = $ADDR\s+"IO::Handle"
     IFP = $ADDR

diff --git a/sv.h b/sv.h
index 0146de4..a5c568c 100644 (file)
--- a/sv.h
+++ b/sv.h
@@ -1071,6 +1071,7 @@ the scalar's value cannot change unless written to.
            assert(SvTYPE(_svivx) != SVt_PVHV);                         \
            assert(SvTYPE(_svivx) != SVt_PVCV);                         \
            assert(SvTYPE(_svivx) != SVt_PVFM);                         \
+           assert(SvTYPE(_svivx) != SVt_PVIO);                         \
            assert(!isGV_with_GP(_svivx));                              \
            &(((XPVIV*) MUTABLE_PTR(SvANY(_svivx)))->xiv_iv);           \
         }))
@@ -1081,6 +1082,7 @@ the scalar's value cannot change unless written to.
            assert(SvTYPE(_svuvx) != SVt_PVHV);                         \
            assert(SvTYPE(_svuvx) != SVt_PVCV);                         \
            assert(SvTYPE(_svuvx) != SVt_PVFM);                         \
+           assert(SvTYPE(_svuvx) != SVt_PVIO);                         \
            assert(!isGV_with_GP(_svuvx));                              \
            &(((XPVUV*) MUTABLE_PTR(SvANY(_svuvx)))->xuv_uv);           \
         }))