Porting/sync-with-cpan: 5.12 compatibility

[perl5.git] / dump.c

diff --git a/dump.c b/dump.c
index c4bb3ce..a2c0bbc 100644 (file)
--- a/dump.c
+++ b/dump.c
@@ -369,7 +369,9 @@ Perl_sv_peek(pTHX_ SV *sv)
        sv_catpv(t, "WILD");
        goto finish;
     }
-    else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes || sv == &PL_sv_placeholder) {
+    else if (  sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes
+            || sv == &PL_sv_zero || sv == &PL_sv_placeholder)
+    {
        if (sv == &PL_sv_undef) {
            sv_catpv(t, "SV_UNDEF");
            if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
@@ -398,6 +400,17 @@ Perl_sv_peek(pTHX_ SV *sv)
                SvNVX(sv) == 1.0)
                goto finish;
        }
+       else if (sv == &PL_sv_zero) {
+           sv_catpv(t, "SV_ZERO");
+           if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
+                                SVs_GMG|SVs_SMG|SVs_RMG)) &&
+               !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
+                                 SVp_POK|SVp_NOK)) &&
+               SvCUR(sv) == 1 &&
+               SvPVX_const(sv) && *SvPVX_const(sv) == '0' &&
+               SvNVX(sv) == 0.0)
+               goto finish;
+       }
        else {
            sv_catpv(t, "SV_PLACEHOLDER");
            if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
@@ -565,7 +578,10 @@ S_opdump_indent(pTHX_ const OP *o, I32 level, UV bar, PerlIO *file,
         /* output preceding blank line */
         PerlIO_puts(file, "     ");
         for (i = level-1; i >= 0; i--)
-            PerlIO_puts(file,  i == 0 || (bar & (1 << i)) ?  "|   " : "    ");
+            PerlIO_puts(file,  (   i == 0
+                                || (i < UVSIZE*8 && (bar & ((UV)1 << i)))
+                               )
+                                    ?  "|   " : "    ");
         PerlIO_puts(file, "\n");
 
         /* output sequence number */
@@ -1823,7 +1839,12 @@ Perl_do_sv_dump(pTHX_ I32 level, PerlIO *file, SV *sv, I32 nest, I32 maxnest, bo
                 PerlIO_printf(file, "\n");
             }
            Perl_dump_indent(aTHX_ level, file, "  CUR = %" IVdf "\n", (IV)SvCUR(sv));
-           if (!re)
+           if (re && type == SVt_PVLV)
+                /* LV-as-REGEXP usurps len field to store pointer to
+                 * regexp struct */
+               Perl_dump_indent(aTHX_ level, file, "  REGEXP = 0x%" UVxf "\n",
+                   PTR2UV(((XPV*)SvANY(sv))->xpv_len_u.xpvlenu_rx));
+            else
                Perl_dump_indent(aTHX_ level, file, "  LEN = %" IVdf "\n",
                                       (IV)SvLEN(sv));
 #ifdef PERL_COPY_ON_WRITE