Changes to perlfaq8 "How do I find out if I'm running interactively

[p5sagit/p5-mst-13.2.git] / scope.c

diff --git a/scope.c b/scope.c
index 2c61424..33763a7 100644 (file)
--- a/scope.c
+++ b/scope.c
@@ -62,7 +62,7 @@ Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
     Newx(si->si_cxstack, cxitems, PERL_CONTEXT);
     /* Without any kind of initialising PUSHSUBST()
      * in pp_subst() will read uninitialised heap. */
-    Poison(si->si_cxstack, cxitems, PERL_CONTEXT);
+    PoisonNew(si->si_cxstack, cxitems, PERL_CONTEXT);
     return si;
 }
 
@@ -75,7 +75,7 @@ Perl_cxinc(pTHX)
     Renew(cxstack, cxstack_max + 1, PERL_CONTEXT);     /* XXX should fix CXINC macro */
     /* Without any kind of initialising deep enough recursion
      * will end up reading uninitialised PERL_CONTEXTs. */
-    Poison(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
+    PoisonNew(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
     return cxstack_ix + 1;
 }
 
@@ -166,6 +166,7 @@ S_save_scalar_at(pTHX_ SV **sptr)
     register SV * const sv = *sptr = newSV(0);
 
 #ifdef PERL_MAD
+    /* FIXME for MAD - this is causing ext/Safe/t/safeops.t to abort.  */
     if (PL_formfeed && sv == PL_formfeed)
        abort();
 #endif
@@ -225,8 +226,8 @@ Perl_save_generic_pvref(pTHX_ char **str)
 {
     dVAR;
     SSCHECK(3);
-    SSPUSHPTR(str);
     SSPUSHPTR(*str);
+    SSPUSHPTR(str);
     SSPUSHINT(SAVEt_GENERIC_PVREF);
 }
 
@@ -589,9 +590,7 @@ Perl_save_alloc(pTHX_ I32 size, I32 pad)
                                - (char*)PL_savestack);
     register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
 
-    /* SSCHECK may not be good enough */
-    while (PL_savestack_ix + elems + 2 > PL_savestack_max)
-       savestack_grow();
+    SSGROW(elems + 2);
 
     PL_savestack_ix += elems;
     SSPUSHINT(elems);
@@ -644,8 +643,8 @@ Perl_leave_scope(pTHX_ I32 base)
                SvREFCNT_dec(av);
            break;
        case SAVEt_GENERIC_PVREF:               /* generic pv */
-           str = (char*)SSPOPPTR;
            ptr = SSPOPPTR;
+           str = (char*)SSPOPPTR;
            if (*(char**)ptr != str) {
                Safefree(*(char**)ptr);
                *(char**)ptr = str;
@@ -825,7 +824,7 @@ Perl_leave_scope(pTHX_ I32 base)
            ptr = SSPOPPTR;
            hv = (HV*)ptr;
            ptr = SSPOPPTR;
-           (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
+           (void)hv_delete(hv, (char*)ptr, (I32)SSPOPINT, G_DISCARD);
            SvREFCNT_dec(hv);
            Safefree(ptr);
            break;
@@ -889,11 +888,33 @@ Perl_leave_scope(pTHX_ I32 base)
                GvHV(PL_hintgv) = NULL;
            }
            *(I32*)&PL_hints = (I32)SSPOPINT;
+           Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints);
+           PL_compiling.cop_hints = (struct refcounted_he *) SSPOPPTR;
            if (PL_hints & HINT_LOCALIZE_HH) {
                SvREFCNT_dec((SV*)GvHV(PL_hintgv));
                GvHV(PL_hintgv) = (HV*)SSPOPPTR;
+               assert(GvHV(PL_hintgv));
+           } else if (!GvHV(PL_hintgv)) {
+               /* Need to add a new one manually, else gv_fetchpv() can
+                  add one in this code:
+                  
+                  if (SvTYPE(gv) == SVt_PVGV) {
+                      if (add) {
+                      GvMULTI_on(gv);
+                      gv_init_sv(gv, sv_type);
+                      if (*name=='!' && sv_type == SVt_PVHV && len==1)
+                          require_errno(gv);
+                      }
+                      return gv;
+                  }
+
+                  and it won't have the magic set.  */
+
+               HV *const hv = newHV();
+               hv_magic(hv, NULL, PERL_MAGIC_hints);
+               GvHV(PL_hintgv) = hv;
            }
-                   
+           assert(GvHV(PL_hintgv));
            break;
        case SAVEt_COMPPAD:
            PL_comppad = (PAD*)SSPOPPTR;
@@ -958,6 +979,36 @@ Perl_leave_scope(pTHX_ I32 base)
            ptr = SSPOPPTR;
            (*SSPOPDPTR)(ptr);
            break;
+       case SAVEt_COP_ARYBASE:
+           ptr = SSPOPPTR;
+           i = SSPOPINT;
+           CopARYBASE_set((COP *)ptr, i);
+           break;
+       case SAVEt_COMPILE_WARNINGS:
+           ptr = SSPOPPTR;
+
+           if (!specialWARN(PL_compiling.cop_warnings))
+               PerlMemShared_free(PL_compiling.cop_warnings);
+
+           PL_compiling.cop_warnings = ptr;
+           break;
+       case SAVEt_RE_STATE:
+           {
+               const struct re_save_state *const state
+                   = (struct re_save_state *)
+                   (PL_savestack + PL_savestack_ix
+                    - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE);
+               PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE;
+
+               if (PL_reg_start_tmp != state->re_state_reg_start_tmp) {
+                   Safefree(PL_reg_start_tmp);
+               }
+               if (PL_reg_poscache != state->re_state_reg_poscache) {
+                   Safefree(PL_reg_poscache);
+               }
+               Copy(state, &PL_reg_state, 1, struct re_save_state);
+           }
+           break;
        default:
            Perl_croak(aTHX_ "panic: leave_scope inconsistency");
        }