Updates to perlfunc.pod

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

diff --git a/hv.c b/hv.c
index b25c2e2..1ae7ad9 100644 (file)
--- a/hv.c
+++ b/hv.c
@@ -127,7 +127,7 @@ I32 lval;
            continue;
        if (HeKLEN(entry) != klen)
            continue;
-       if (memcmp(HeKEY(entry),key,klen))      /* is this it? */
+       if (memNE(HeKEY(entry),key,klen))       /* is this it? */
            continue;
        return &HeVAL(entry);
     }
@@ -135,7 +135,7 @@ I32 lval;
     if (HvNAME(hv) && strEQ(HvNAME(hv),ENV_HV_NAME)) {
       char *gotenv;
 
-      gotenv = my_getenv(key);
+      gotenv = ENV_getenv(key);
       if (gotenv != NULL) {
         sv = newSVpv(gotenv,strlen(gotenv));
         return hv_store(hv,key,klen,sv,hash);
@@ -168,20 +168,20 @@ register U32 hash;
        return 0;
 
     if (SvRMAGICAL(hv) && mg_find((SV*)hv,'P')) {
-       char *k;
-       HEK *hek;
+       static HE mh;
 
-       New(54, k, HEK_BASESIZE + sizeof(SV*), char);
-       hek = (HEK*)k;
        sv = sv_newmortal();
        keysv = sv_2mortal(newSVsv(keysv));
        mg_copy((SV*)hv, sv, (char*)keysv, HEf_SVKEY);
-       entry = &He;
-       HeVAL(entry) = sv;
-       HeKEY_hek(entry) = hek;
-       HeSVKEY_set(entry, keysv);
-       HeKLEN(entry) = HEf_SVKEY;      /* hent_key is holding an SV* */
-       return entry;
+       if (!HeKEY_hek(&mh)) {
+           char *k;
+           New(54, k, HEK_BASESIZE + sizeof(SV*), char);
+           HeKEY_hek(&mh) = (HEK*)k;
+           HeKLEN(&mh) = HEf_SVKEY;    /* key will always hold an SV* */
+       }
+       HeSVKEY_set(&mh, keysv);
+       HeVAL(&mh) = sv;
+       return &mh;
     }
 
     xhv = (XPVHV*)SvANY(hv);
@@ -207,7 +207,7 @@ register U32 hash;
            continue;
        if (HeKLEN(entry) != klen)
            continue;
-       if (memcmp(HeKEY(entry),key,klen))      /* is this it? */
+       if (memNE(HeKEY(entry),key,klen))       /* is this it? */
            continue;
        return entry;
     }
@@ -215,7 +215,7 @@ register U32 hash;
     if (HvNAME(hv) && strEQ(HvNAME(hv),ENV_HV_NAME)) {
       char *gotenv;
 
-      gotenv = my_getenv(key);
+      gotenv = ENV_getenv(key);
       if (gotenv != NULL) {
         sv = newSVpv(gotenv,strlen(gotenv));
         return hv_store_ent(hv,keysv,sv,hash);
@@ -248,14 +248,14 @@ register U32 hash;
     xhv = (XPVHV*)SvANY(hv);
     if (SvMAGICAL(hv)) {
        mg_copy((SV*)hv, val, key, klen);
-#ifndef OVERLOAD
-       if (!xhv->xhv_array)
-           return 0;
-#else
-       if (!xhv->xhv_array && (SvMAGIC(hv)->mg_type != 'A'
-                               || SvMAGIC(hv)->mg_moremagic))
-         return 0;
+       if (!xhv->xhv_array
+           && (SvMAGIC(hv)->mg_moremagic
+               || (SvMAGIC(hv)->mg_type != 'E'
+#ifdef OVERLOAD
+                   && SvMAGIC(hv)->mg_type != 'A'
 #endif /* OVERLOAD */
+                   )))
+           return 0;
     }
     if (!hash)
        PERL_HASH(hash, key, klen);
@@ -271,7 +271,7 @@ register U32 hash;
            continue;
        if (HeKLEN(entry) != klen)
            continue;
-       if (memcmp(HeKEY(entry),key,klen))      /* is this it? */
+       if (memNE(HeKEY(entry),key,klen))       /* is this it? */
            continue;
        SvREFCNT_dec(HeVAL(entry));
        HeVAL(entry) = val;
@@ -318,14 +318,14 @@ register U32 hash;
     if (SvMAGICAL(hv)) {
        keysv = sv_2mortal(newSVsv(keysv));
        mg_copy((SV*)hv, val, (char*)keysv, HEf_SVKEY);
-#ifndef OVERLOAD
-       if (!xhv->xhv_array)
-           return Nullhe;
-#else
-       if (!xhv->xhv_array && (SvMAGIC(hv)->mg_type != 'A'
-                               || SvMAGIC(hv)->mg_moremagic))
-         return Nullhe;
+       if (!xhv->xhv_array
+           && (SvMAGIC(hv)->mg_moremagic
+               || (SvMAGIC(hv)->mg_type != 'E'
+#ifdef OVERLOAD
+                   && SvMAGIC(hv)->mg_type != 'A'
 #endif /* OVERLOAD */
+                   )))
+         return Nullhe;
     }
 
     key = SvPV(keysv, klen);
@@ -344,7 +344,7 @@ register U32 hash;
            continue;
        if (HeKLEN(entry) != klen)
            continue;
-       if (memcmp(HeKEY(entry),key,klen))      /* is this it? */
+       if (memNE(HeKEY(entry),key,klen))       /* is this it? */
            continue;
        SvREFCNT_dec(HeVAL(entry));
        HeVAL(entry) = val;
@@ -411,7 +411,7 @@ I32 flags;
            continue;
        if (HeKLEN(entry) != klen)
            continue;
-       if (memcmp(HeKEY(entry),key,klen))      /* is this it? */
+       if (memNE(HeKEY(entry),key,klen))       /* is this it? */
            continue;
        *oentry = HeNEXT(entry);
        if (i && !*oentry)
@@ -423,7 +423,7 @@ I32 flags;
        if (entry == xhv->xhv_eiter)
            HvLAZYDEL_on(hv);
        else
-           he_free(entry, HvSHAREKEYS(hv));
+           he_free(hv, entry);
        --xhv->xhv_keys;
        return sv;
     }
@@ -473,7 +473,7 @@ U32 hash;
            continue;
        if (HeKLEN(entry) != klen)
            continue;
-       if (memcmp(HeKEY(entry),key,klen))      /* is this it? */
+       if (memNE(HeKEY(entry),key,klen))       /* is this it? */
            continue;
        *oentry = HeNEXT(entry);
        if (i && !*oentry)
@@ -485,7 +485,7 @@ U32 hash;
        if (entry == xhv->xhv_eiter)
            HvLAZYDEL_on(hv);
        else
-           he_free(entry, HvSHAREKEYS(hv));
+           he_free(hv, entry);
        --xhv->xhv_keys;
        return sv;
     }
@@ -527,7 +527,7 @@ U32 klen;
            continue;
        if (HeKLEN(entry) != klen)
            continue;
-       if (memcmp(HeKEY(entry),key,klen))      /* is this it? */
+       if (memNE(HeKEY(entry),key,klen))       /* is this it? */
            continue;
        return TRUE;
     }
@@ -574,7 +574,7 @@ U32 hash;
            continue;
        if (HeKLEN(entry) != klen)
            continue;
-       if (memcmp(HeKEY(entry),key,klen))      /* is this it? */
+       if (memNE(HeKEY(entry),key,klen))       /* is this it? */
            continue;
        return TRUE;
     }
@@ -746,17 +746,20 @@ newHV()
 }
 
 void
-he_free(hent, shared)
+he_free(hv, hent)
+HV *hv;
 register HE *hent;
-I32 shared;
 {
     if (!hent)
        return;
+    if (isGV(HeVAL(hent)) && GvCVu(HeVAL(hent)) && HvNAME(hv))
+       sub_generation++;       /* may be deletion of method from stash */
     SvREFCNT_dec(HeVAL(hent));
     if (HeKLEN(hent) == HEf_SVKEY) {
        SvREFCNT_dec(HeKEY_sv(hent));
         Safefree(HeKEY_hek(hent));
-    } else if (shared)
+    }
+    else if (HvSHAREKEYS(hv))
        unshare_hek(HeKEY_hek(hent));
     else
        Safefree(HeKEY_hek(hent));
@@ -764,17 +767,20 @@ I32 shared;
 }
 
 void
-he_delayfree(hent, shared)
+he_delayfree(hv, hent)
+HV *hv;
 register HE *hent;
-I32 shared;
 {
     if (!hent)
        return;
+    if (isGV(HeVAL(hent)) && GvCVu(HeVAL(hent)) && HvNAME(hv))
+       sub_generation++;       /* may be deletion of method from stash */
     sv_2mortal(HeVAL(hent));   /* free between statements */
     if (HeKLEN(hent) == HEf_SVKEY) {
        sv_2mortal(HeKEY_sv(hent));
        Safefree(HeKEY_hek(hent));
-    } else if (shared)
+    }
+    else if (HvSHAREKEYS(hv))
        unshare_hek(HeKEY_hek(hent));
     else
        Safefree(HeKEY_hek(hent));
@@ -808,7 +814,6 @@ HV *hv;
     register HE *ohent = Null(HE*);
     I32 riter;
     I32 max;
-    I32 shared;
 
     if (!hv)
        return;
@@ -819,12 +824,11 @@ HV *hv;
     max = HvMAX(hv);
     array = HvARRAY(hv);
     hent = array[0];
-    shared = HvSHAREKEYS(hv);
     for (;;) {
        if (hent) {
            ohent = hent;
            hent = HeNEXT(hent);
-           he_free(ohent, shared);
+           he_free(hv, ohent);
        }
        if (!hent) {
            if (++riter > max)
@@ -850,7 +854,7 @@ HV *hv;
        HvNAME(hv) = 0;
     }
     xhv->xhv_array = 0;
-    xhv->xhv_max = 7;          /* it's a normal associative array */
+    xhv->xhv_max = 7;          /* it's a normal hash */
     xhv->xhv_fill = 0;
     xhv->xhv_keys = 0;
 
@@ -862,14 +866,20 @@ I32
 hv_iterinit(hv)
 HV *hv;
 {
-    register XPVHV* xhv = (XPVHV*)SvANY(hv);
-    HE *entry = xhv->xhv_eiter;
+    register XPVHV* xhv;
+    HE *entry;
+
+    if (!hv)
+       croak("Bad hash");
+    xhv = (XPVHV*)SvANY(hv);
+    entry = xhv->xhv_eiter;
 #ifdef DYNAMIC_ENV_FETCH  /* set up %ENV for iteration */
-    if (HvNAME(hv) && strEQ(HvNAME(hv),ENV_HV_NAME)) prime_env_iter();
+    if (HvNAME(hv) && strEQ(HvNAME(hv), ENV_HV_NAME))
+       prime_env_iter();
 #endif
     if (entry && HvLAZYDEL(hv)) {      /* was deleted earlier? */
        HvLAZYDEL_off(hv);
-       he_free(entry, HvSHAREKEYS(hv));
+       he_free(hv, entry);
     }
     xhv->xhv_riter = -1;
     xhv->xhv_eiter = Null(HE*);
@@ -886,7 +896,7 @@ HV *hv;
     MAGIC* mg;
 
     if (!hv)
-       croak("Bad associative array");
+       croak("Bad hash");
     xhv = (XPVHV*)SvANY(hv);
     oldentry = entry = xhv->xhv_eiter;
 
@@ -936,7 +946,7 @@ HV *hv;
 
     if (oldentry && HvLAZYDEL(hv)) {           /* was deleted earlier? */
        HvLAZYDEL_off(hv);
-       he_free(oldentry, HvSHAREKEYS(hv));
+       he_free(hv, oldentry);
     }
 
     xhv->xhv_eiter = entry;
@@ -1045,7 +1055,7 @@ U32 hash;
            continue;
        if (HeKLEN(entry) != len)
            continue;
-       if (memcmp(HeKEY(entry),str,len))               /* is this it? */
+       if (memNE(HeKEY(entry),str,len))        /* is this it? */
            continue;
        found = 1;
        if (--HeVAL(entry) == Nullsv) {
@@ -1092,7 +1102,7 @@ register U32 hash;
            continue;
        if (HeKLEN(entry) != len)
            continue;
-       if (memcmp(HeKEY(entry),str,len))               /* is this it? */
+       if (memNE(HeKEY(entry),str,len))        /* is this it? */
            continue;
        found = 1;
        break;