/* pp_ctl.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
* And whither then? I cannot say.
*/
+/* This file contains control-oriented pp ("push/pop") functions that
+ * execute the opcodes that make up a perl program. A typical pp function
+ * expects to find its arguments on the stack, and usually pushes its
+ * results onto the stack, hence the 'pp' terminology. Each OP structure
+ * contains a pointer to the relevant pp_foo() function.
+ *
+ * Control-oriented means things like pp_enteriter() and pp_next(), which
+ * alter the flow of control of the program.
+ */
+
+
#include "EXTERN.h"
#define PERL_IN_PP_CTL_C
#include "perl.h"
{
dSP;
register PMOP *pm = (PMOP*)cLOGOP->op_other;
- register char *t;
SV *tmpstr;
- STRLEN len;
MAGIC *mg = Null(MAGIC*);
-
- tmpstr = POPs;
/* prevent recompiling under /o and ithreads. */
#if defined(USE_ITHREADS)
- if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm))
- RETURN;
+ if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) {
+ if (PL_op->op_flags & OPf_STACKED) {
+ dMARK;
+ SP = MARK;
+ }
+ else
+ (void)POPs;
+ RETURN;
+ }
#endif
+ if (PL_op->op_flags & OPf_STACKED) {
+ /* multiple args; concatentate them */
+ dMARK; dORIGMARK;
+ tmpstr = PAD_SV(ARGTARG);
+ sv_setpvn(tmpstr, "", 0);
+ while (++MARK <= SP) {
+ if (PL_amagic_generation) {
+ SV *sv;
+ if ((SvAMAGIC(tmpstr) || SvAMAGIC(*MARK)) &&
+ (sv = amagic_call(tmpstr, *MARK, concat_amg, AMGf_assign)))
+ {
+ sv_setsv(tmpstr, sv);
+ continue;
+ }
+ }
+ sv_catsv(tmpstr, *MARK);
+ }
+ SvSETMAGIC(tmpstr);
+ SP = ORIGMARK;
+ }
+ else
+ tmpstr = POPs;
if (SvROK(tmpstr)) {
SV *sv = SvRV(tmpstr);
mg = mg_find(sv, PERL_MAGIC_qr);
}
if (mg) {
- regexp *re = (regexp *)mg->mg_obj;
+ regexp * const re = (regexp *)mg->mg_obj;
ReREFCNT_dec(PM_GETRE(pm));
PM_SETRE(pm, ReREFCNT_inc(re));
}
else {
- t = SvPV(tmpstr, len);
+ STRLEN len;
+ const char *t = SvPV_const(tmpstr, len);
/* Check against the last compiled regexp. */
if (!PM_GETRE(pm) || !PM_GETRE(pm)->precomp ||
if (pm->op_pmdynflags & PMdf_UTF8)
t = (char*)bytes_to_utf8((U8*)t, &len);
}
- PM_SETRE(pm, CALLREGCOMP(aTHX_ t, t + len, pm));
+ PM_SETRE(pm, CALLREGCOMP(aTHX_ (char *)t, (char *)t + len, pm));
if (!DO_UTF8(tmpstr) && (pm->op_pmdynflags & PMdf_UTF8))
Safefree(t);
PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed
PP(pp_substcont)
{
dSP;
- register PMOP *pm = (PMOP*) cLOGOP->op_other;
register PERL_CONTEXT *cx = &cxstack[cxstack_ix];
- register SV *dstr = cx->sb_dstr;
+ register PMOP * const pm = (PMOP*) cLOGOP->op_other;
+ register SV * const dstr = cx->sb_dstr;
register char *s = cx->sb_s;
register char *m = cx->sb_m;
char *orig = cx->sb_orig;
- register REGEXP *rx = cx->sb_rx;
+ register REGEXP * const rx = cx->sb_rx;
SV *nsv = Nullsv;
REGEXP *old = PM_GETRE(pm);
if(old != rx) {
- if(old)
+ if(old)
ReREFCNT_dec(old);
PM_SETRE(pm,rx);
}
rxres_restore(&cx->sb_rxres, rx);
- RX_MATCH_UTF8_set(rx, SvUTF8(cx->sb_targ));
+ RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ));
if (cx->sb_iters++) {
- I32 saviters = cx->sb_iters;
+ const I32 saviters = cx->sb_iters;
if (cx->sb_iters > cx->sb_maxiters)
DIE(aTHX_ "Substitution loop");
? (REXEC_IGNOREPOS|REXEC_NOT_FIRST)
: (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST))))
{
- SV *targ = cx->sb_targ;
+ SV * const targ = cx->sb_targ;
- if (DO_UTF8(dstr) && !SvUTF8(targ))
- sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv);
- else
- sv_catpvn(dstr, s, cx->sb_strend - s);
+ assert(cx->sb_strend >= s);
+ if(cx->sb_strend > s) {
+ if (DO_UTF8(dstr) && !SvUTF8(targ))
+ sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv);
+ else
+ sv_catpvn(dstr, s, cx->sb_strend - s);
+ }
cx->sb_rxtainted |= RX_MATCH_TAINTED(rx);
-#ifdef PERL_COPY_ON_WRITE
+#ifdef PERL_OLD_COPY_ON_WRITE
if (SvIsCOW(targ)) {
sv_force_normal_flags(targ, SV_COW_DROP_PV);
} else
#endif
{
- (void)SvOOK_off(targ);
- if (SvLEN(targ))
- Safefree(SvPVX(targ));
+ SvPV_free(targ);
}
- SvPVX(targ) = SvPVX(dstr);
+ SvPV_set(targ, SvPVX(dstr));
SvCUR_set(targ, SvCUR(dstr));
SvLEN_set(targ, SvLEN(dstr));
if (DO_UTF8(dstr))
SvUTF8_on(targ);
- SvPVX(dstr) = 0;
+ SvPV_set(dstr, (char*)0);
sv_free(dstr);
TAINT_IF(cx->sb_rxtainted & 1);
}
cx->sb_m = m = rx->startp[0] + orig;
if (m > s) {
- if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ))
+ if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ))
sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv);
else
sv_catpvn(dstr, s, m-s);
}
cx->sb_s = rx->endp[0] + orig;
{ /* Update the pos() information. */
- SV *sv = cx->sb_targ;
+ SV * const sv = cx->sb_targ;
MAGIC *mg;
I32 i;
if (SvTYPE(sv) < SVt_PVMG)
- (void)SvUPGRADE(sv, SVt_PVMG);
+ SvUPGRADE(sv, SVt_PVMG);
if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) {
sv_magic(sv, Nullsv, PERL_MAGIC_regex_global, Nullch, 0);
mg = mg_find(sv, PERL_MAGIC_regex_global);
mg->mg_len = i;
}
if (old != rx)
- ReREFCNT_inc(rx);
+ (void)ReREFCNT_inc(rx);
cx->sb_rxtainted |= RX_MATCH_TAINTED(rx);
rxres_save(&cx->sb_rxres, rx);
RETURNOP(pm->op_pmreplstart);
U32 i;
if (!p || p[1] < rx->nparens) {
-#ifdef PERL_COPY_ON_WRITE
+#ifdef PERL_OLD_COPY_ON_WRITE
i = 7 + rx->nparens * 2;
#else
i = 6 + rx->nparens * 2;
#endif
if (!p)
- New(501, p, i, UV);
+ Newx(p, i, UV);
else
Renew(p, i, UV);
*rsp = (void*)p;
*p++ = PTR2UV(RX_MATCH_COPIED(rx) ? rx->subbeg : Nullch);
RX_MATCH_COPIED_off(rx);
-#ifdef PERL_COPY_ON_WRITE
+#ifdef PERL_OLD_COPY_ON_WRITE
*p++ = PTR2UV(rx->saved_copy);
rx->saved_copy = Nullsv;
#endif
RX_MATCH_COPIED_set(rx, *p);
*p++ = 0;
-#ifdef PERL_COPY_ON_WRITE
+#ifdef PERL_OLD_COPY_ON_WRITE
if (rx->saved_copy)
SvREFCNT_dec (rx->saved_copy);
rx->saved_copy = INT2PTR(SV*,*p);
void
Perl_rxres_free(pTHX_ void **rsp)
{
- UV *p = (UV*)*rsp;
+ UV * const p = (UV*)*rsp;
if (p) {
+#ifdef PERL_POISON
+ void *tmp = INT2PTR(char*,*p);
+ Safefree(tmp);
+ if (*p)
+ Poison(*p, 1, sizeof(*p));
+#else
Safefree(INT2PTR(char*,*p));
-#ifdef PERL_COPY_ON_WRITE
+#endif
+#ifdef PERL_OLD_COPY_ON_WRITE
if (p[1]) {
SvREFCNT_dec (INT2PTR(SV*,p[1]));
}
PP(pp_formline)
{
dSP; dMARK; dORIGMARK;
- register SV *tmpForm = *++MARK;
+ register SV * const tmpForm = *++MARK;
register U32 *fpc;
register char *t;
- register char *f;
- register char *s;
- register char *send;
+ const char *f;
register I32 arg;
register SV *sv = Nullsv;
- char *item = Nullch;
+ const char *item = Nullch;
I32 itemsize = 0;
I32 fieldsize = 0;
I32 lines = 0;
bool chopspace = (strchr(PL_chopset, ' ') != Nullch);
- char *chophere = Nullch;
+ const char *chophere = Nullch;
char *linemark = Nullch;
NV value;
bool gotsome = FALSE;
STRLEN len;
- STRLEN fudge = SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1;
+ const STRLEN fudge = SvPOK(tmpForm)
+ ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0;
bool item_is_utf8 = FALSE;
bool targ_is_utf8 = FALSE;
SV * nsv = Nullsv;
OP * parseres = 0;
- char *fmt;
+ const char *fmt;
bool oneline;
if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) {
targ_is_utf8 = TRUE;
t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */
t += len;
- f = SvPV(tmpForm, len);
+ f = SvPV_const(tmpForm, len);
/* need to jump to the next word */
- s = f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN;
-
- fpc = (U32*)s;
+ fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN);
for (;;) {
DEBUG_f( {
- char *name = "???";
+ const char *name = "???";
arg = -1;
switch (*fpc) {
case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break;
case FF_MORE: name = "MORE"; break;
case FF_LINEMARK: name = "LINEMARK"; break;
case FF_END: name = "END"; break;
- case FF_0DECIMAL: name = "0DECIMAL"; break;
+ case FF_0DECIMAL: name = "0DECIMAL"; break;
case FF_LINESNGL: name = "LINESNGL"; break;
}
if (arg >= 0)
case FF_LITERAL:
arg = *fpc++;
if (targ_is_utf8 && !SvUTF8(tmpForm)) {
- SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
+ SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget));
*t = '\0';
sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv);
t = SvEND(PL_formtarget);
break;
}
if (!targ_is_utf8 && DO_UTF8(tmpForm)) {
- SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
+ SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget));
*t = '\0';
sv_utf8_upgrade(PL_formtarget);
SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1);
break;
case FF_CHECKNL:
- item = s = SvPV(sv, len);
- itemsize = len;
- if (DO_UTF8(sv)) {
- itemsize = sv_len_utf8(sv);
- if (itemsize != (I32)len) {
- I32 itembytes;
- if (itemsize > fieldsize) {
- itemsize = fieldsize;
- itembytes = itemsize;
- sv_pos_u2b(sv, &itembytes, 0);
- }
- else
- itembytes = len;
- send = chophere = s + itembytes;
- while (s < send) {
- if (*s & ~31)
- gotsome = TRUE;
- else if (*s == '\n')
- break;
- s++;
+ {
+ const char *send;
+ const char *s = item = SvPV_const(sv, len);
+ itemsize = len;
+ if (DO_UTF8(sv)) {
+ itemsize = sv_len_utf8(sv);
+ if (itemsize != (I32)len) {
+ I32 itembytes;
+ if (itemsize > fieldsize) {
+ itemsize = fieldsize;
+ itembytes = itemsize;
+ sv_pos_u2b(sv, &itembytes, 0);
+ }
+ else
+ itembytes = len;
+ send = chophere = s + itembytes;
+ while (s < send) {
+ if (*s & ~31)
+ gotsome = TRUE;
+ else if (*s == '\n')
+ break;
+ s++;
+ }
+ item_is_utf8 = TRUE;
+ itemsize = s - item;
+ sv_pos_b2u(sv, &itemsize);
+ break;
}
- item_is_utf8 = TRUE;
- itemsize = s - item;
- sv_pos_b2u(sv, &itemsize);
- break;
}
+ item_is_utf8 = FALSE;
+ if (itemsize > fieldsize)
+ itemsize = fieldsize;
+ send = chophere = s + itemsize;
+ while (s < send) {
+ if (*s & ~31)
+ gotsome = TRUE;
+ else if (*s == '\n')
+ break;
+ s++;
+ }
+ itemsize = s - item;
+ break;
}
- item_is_utf8 = FALSE;
- if (itemsize > fieldsize)
- itemsize = fieldsize;
- send = chophere = s + itemsize;
- while (s < send) {
- if (*s & ~31)
- gotsome = TRUE;
- else if (*s == '\n')
- break;
- s++;
- }
- itemsize = s - item;
- break;
case FF_CHECKCHOP:
- item = s = SvPV(sv, len);
- itemsize = len;
- if (DO_UTF8(sv)) {
- itemsize = sv_len_utf8(sv);
- if (itemsize != (I32)len) {
- I32 itembytes;
- if (itemsize <= fieldsize) {
- send = chophere = s + itemsize;
- while (s < send) {
- if (*s == '\r') {
- itemsize = s - item;
- chophere = s;
- break;
- }
- if (*s++ & ~31)
- gotsome = TRUE;
- }
- }
- else {
- itemsize = fieldsize;
- itembytes = itemsize;
- sv_pos_u2b(sv, &itembytes, 0);
- send = chophere = s + itembytes;
- while (s < send || (s == send && isSPACE(*s))) {
- if (isSPACE(*s)) {
- if (chopspace)
+ {
+ const char *s = item = SvPV_const(sv, len);
+ itemsize = len;
+ if (DO_UTF8(sv)) {
+ itemsize = sv_len_utf8(sv);
+ if (itemsize != (I32)len) {
+ I32 itembytes;
+ if (itemsize <= fieldsize) {
+ const char *send = chophere = s + itemsize;
+ while (s < send) {
+ if (*s == '\r') {
+ itemsize = s - item;
chophere = s;
- if (*s == '\r')
break;
- }
- else {
- if (*s & ~31)
+ }
+ if (*s++ & ~31)
gotsome = TRUE;
- if (strchr(PL_chopset, *s))
- chophere = s + 1;
}
- s++;
}
- itemsize = chophere - item;
- sv_pos_b2u(sv, &itemsize);
- }
- item_is_utf8 = TRUE;
- break;
- }
- }
- item_is_utf8 = FALSE;
- if (itemsize <= fieldsize) {
- send = chophere = s + itemsize;
- while (s < send) {
- if (*s == '\r') {
- itemsize = s - item;
- chophere = s;
+ else {
+ const char *send;
+ itemsize = fieldsize;
+ itembytes = itemsize;
+ sv_pos_u2b(sv, &itembytes, 0);
+ send = chophere = s + itembytes;
+ while (s < send || (s == send && isSPACE(*s))) {
+ if (isSPACE(*s)) {
+ if (chopspace)
+ chophere = s;
+ if (*s == '\r')
+ break;
+ }
+ else {
+ if (*s & ~31)
+ gotsome = TRUE;
+ if (strchr(PL_chopset, *s))
+ chophere = s + 1;
+ }
+ s++;
+ }
+ itemsize = chophere - item;
+ sv_pos_b2u(sv, &itemsize);
+ }
+ item_is_utf8 = TRUE;
break;
}
- if (*s++ & ~31)
- gotsome = TRUE;
}
- }
- else {
- itemsize = fieldsize;
- send = chophere = s + itemsize;
- while (s < send || (s == send && isSPACE(*s))) {
- if (isSPACE(*s)) {
- if (chopspace)
+ item_is_utf8 = FALSE;
+ if (itemsize <= fieldsize) {
+ const char *const send = chophere = s + itemsize;
+ while (s < send) {
+ if (*s == '\r') {
+ itemsize = s - item;
chophere = s;
- if (*s == '\r')
break;
- }
- else {
- if (*s & ~31)
+ }
+ if (*s++ & ~31)
gotsome = TRUE;
- if (strchr(PL_chopset, *s))
- chophere = s + 1;
}
- s++;
}
- itemsize = chophere - item;
+ else {
+ const char *send;
+ itemsize = fieldsize;
+ send = chophere = s + itemsize;
+ while (s < send || (s == send && isSPACE(*s))) {
+ if (isSPACE(*s)) {
+ if (chopspace)
+ chophere = s;
+ if (*s == '\r')
+ break;
+ }
+ else {
+ if (*s & ~31)
+ gotsome = TRUE;
+ if (strchr(PL_chopset, *s))
+ chophere = s + 1;
+ }
+ s++;
+ }
+ itemsize = chophere - item;
+ }
+ break;
}
- break;
case FF_SPACE:
arg = fieldsize - itemsize;
break;
case FF_ITEM:
- arg = itemsize;
- s = item;
- if (item_is_utf8) {
- if (!targ_is_utf8) {
- SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
- *t = '\0';
- sv_utf8_upgrade(PL_formtarget);
- SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1);
- t = SvEND(PL_formtarget);
- targ_is_utf8 = TRUE;
- }
- while (arg--) {
- if (UTF8_IS_CONTINUED(*s)) {
- STRLEN skip = UTF8SKIP(s);
- switch (skip) {
- default:
- Move(s,t,skip,char);
- s += skip;
- t += skip;
- break;
- case 7: *t++ = *s++;
- case 6: *t++ = *s++;
- case 5: *t++ = *s++;
- case 4: *t++ = *s++;
- case 3: *t++ = *s++;
- case 2: *t++ = *s++;
- case 1: *t++ = *s++;
- }
+ {
+ const char *s = item;
+ arg = itemsize;
+ if (item_is_utf8) {
+ if (!targ_is_utf8) {
+ SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget));
+ *t = '\0';
+ sv_utf8_upgrade(PL_formtarget);
+ SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1);
+ t = SvEND(PL_formtarget);
+ targ_is_utf8 = TRUE;
}
- else {
- if ( !((*t++ = *s++) & ~31) )
- t[-1] = ' ';
+ while (arg--) {
+ if (UTF8_IS_CONTINUED(*s)) {
+ STRLEN skip = UTF8SKIP(s);
+ switch (skip) {
+ default:
+ Move(s,t,skip,char);
+ s += skip;
+ t += skip;
+ break;
+ case 7: *t++ = *s++;
+ case 6: *t++ = *s++;
+ case 5: *t++ = *s++;
+ case 4: *t++ = *s++;
+ case 3: *t++ = *s++;
+ case 2: *t++ = *s++;
+ case 1: *t++ = *s++;
+ }
+ }
+ else {
+ if ( !((*t++ = *s++) & ~31) )
+ t[-1] = ' ';
+ }
}
+ break;
}
- break;
- }
- if (targ_is_utf8 && !item_is_utf8) {
- SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
- *t = '\0';
- sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv);
- for (; t < SvEND(PL_formtarget); t++) {
+ if (targ_is_utf8 && !item_is_utf8) {
+ SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget));
+ *t = '\0';
+ sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv);
+ for (; t < SvEND(PL_formtarget); t++) {
#ifdef EBCDIC
- int ch = *t;
- if (iscntrl(ch))
+ const int ch = *t;
+ if (iscntrl(ch))
#else
- if (!(*t & ~31))
+ if (!(*t & ~31))
#endif
- *t = ' ';
+ *t = ' ';
+ }
+ break;
}
- break;
- }
- while (arg--) {
+ while (arg--) {
#ifdef EBCDIC
- int ch = *t++ = *s++;
- if (iscntrl(ch))
+ const int ch = *t++ = *s++;
+ if (iscntrl(ch))
#else
- if ( !((*t++ = *s++) & ~31) )
+ if ( !((*t++ = *s++) & ~31) )
#endif
- t[-1] = ' ';
+ t[-1] = ' ';
+ }
+ break;
}
- break;
case FF_CHOP:
- s = chophere;
- if (chopspace) {
- while (*s && isSPACE(*s))
- s++;
+ {
+ const char *s = chophere;
+ if (chopspace) {
+ while (*s && isSPACE(*s))
+ s++;
+ }
+ sv_chop(sv,s);
+ SvSETMAGIC(sv);
+ break;
}
- sv_chop(sv,s);
- SvSETMAGIC(sv);
- break;
case FF_LINESNGL:
chopspace = 0;
case FF_LINEGLOB:
oneline = FALSE;
ff_line:
- item = s = SvPV(sv, len);
- itemsize = len;
- if ((item_is_utf8 = DO_UTF8(sv)))
- itemsize = sv_len_utf8(sv);
- if (itemsize) {
- bool chopped = FALSE;
- gotsome = TRUE;
- send = s + len;
- chophere = s + itemsize;
- while (s < send) {
- if (*s++ == '\n') {
- if (oneline) {
- chopped = TRUE;
- chophere = s;
- break;
- } else {
- if (s == send) {
- itemsize--;
- chopped = TRUE;
- } else
- lines++;
+ {
+ const char *s = item = SvPV_const(sv, len);
+ itemsize = len;
+ if ((item_is_utf8 = DO_UTF8(sv)))
+ itemsize = sv_len_utf8(sv);
+ if (itemsize) {
+ bool chopped = FALSE;
+ const char *const send = s + len;
+ gotsome = TRUE;
+ chophere = s + itemsize;
+ while (s < send) {
+ if (*s++ == '\n') {
+ if (oneline) {
+ chopped = TRUE;
+ chophere = s;
+ break;
+ } else {
+ if (s == send) {
+ itemsize--;
+ chopped = TRUE;
+ } else
+ lines++;
+ }
}
}
+ SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget));
+ if (targ_is_utf8)
+ SvUTF8_on(PL_formtarget);
+ if (oneline) {
+ SvCUR_set(sv, chophere - item);
+ sv_catsv(PL_formtarget, sv);
+ SvCUR_set(sv, itemsize);
+ } else
+ sv_catsv(PL_formtarget, sv);
+ if (chopped)
+ SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) - 1);
+ SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1);
+ t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget);
+ if (item_is_utf8)
+ targ_is_utf8 = TRUE;
}
- SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
- if (targ_is_utf8)
- SvUTF8_on(PL_formtarget);
- if (oneline) {
- SvCUR_set(sv, chophere - item);
- sv_catsv(PL_formtarget, sv);
- SvCUR_set(sv, itemsize);
- } else
- sv_catsv(PL_formtarget, sv);
- if (chopped)
- SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) - 1);
- SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1);
- t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget);
- if (item_is_utf8)
- targ_is_utf8 = TRUE;
+ break;
}
- break;
case FF_0DECIMAL:
arg = *fpc++;
gotsome = TRUE;
value = SvNV(sv);
/* overflow evidence */
- if (num_overflow(value, fieldsize, arg)) {
+ if (num_overflow(value, fieldsize, arg)) {
arg = fieldsize;
while (arg--)
*t++ = '#';
if (gotsome) {
if (arg) { /* repeat until fields exhausted? */
*t = '\0';
- SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
+ SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget));
lines += FmLINES(PL_formtarget);
if (lines == 200) {
arg = t - linemark;
break;
case FF_MORE:
- s = chophere;
- send = item + len;
- if (chopspace) {
- while (*s && isSPACE(*s) && s < send)
- s++;
- }
- if (s < send) {
- arg = fieldsize - itemsize;
- if (arg) {
- fieldsize -= arg;
- while (arg-- > 0)
- *t++ = ' ';
+ {
+ const char *s = chophere;
+ const char *send = item + len;
+ if (chopspace) {
+ while (*s && isSPACE(*s) && s < send)
+ s++;
}
- s = t - 3;
- if (strnEQ(s," ",3)) {
- while (s > SvPVX(PL_formtarget) && isSPACE(s[-1]))
- s--;
+ if (s < send) {
+ char *s1;
+ arg = fieldsize - itemsize;
+ if (arg) {
+ fieldsize -= arg;
+ while (arg-- > 0)
+ *t++ = ' ';
+ }
+ s1 = t - 3;
+ if (strnEQ(s1," ",3)) {
+ while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1]))
+ s1--;
+ }
+ *s1++ = '.';
+ *s1++ = '.';
+ *s1++ = '.';
}
- *s++ = '.';
- *s++ = '.';
- *s++ = '.';
+ break;
}
- break;
-
case FF_END:
*t = '\0';
- SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
+ SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget));
if (targ_is_utf8)
SvUTF8_on(PL_formtarget);
FmLINES(PL_formtarget) += lines;
PP(pp_grepstart)
{
- dSP;
+ dVAR; dSP;
SV *src;
if (PL_stack_base + *PL_markstack_ptr == SP) {
PP(pp_mapwhile)
{
- dSP;
- I32 gimme = GIMME_V;
+ dVAR; dSP;
+ const I32 gimme = GIMME_V;
I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */
I32 count;
I32 shift;
* irrelevant. --jhi */
if (shift < count)
shift = count; /* Avoid shifting too often --Ben Tilly */
-
+
EXTEND(SP,shift);
src = SP;
dst = (SP += shift);
while (items-- > 0)
*dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs);
}
- else {
+ else {
/* scalar context: we don't care about which values map returns
* (we use undef here). And so we certainly don't want to do mortal
* copies of meaningless values. */
}
else {
dTOPss;
- SV *targ = PAD_SV(PL_op->op_targ);
- int flip = 0;
+ SV * const targ = PAD_SV(PL_op->op_targ);
+ int flip = 0;
- if (PL_op->op_private & OPpFLIP_LINENUM) {
+ if (PL_op->op_private & OPpFLIP_LINENUM) {
if (GvIO(PL_last_in_gv)) {
flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv));
}
else {
- GV *gv = gv_fetchpv(".", TRUE, SVt_PV);
- if (gv && GvSV(gv)) flip = SvIV(sv) == SvIV(GvSV(gv));
+ GV * const gv = gv_fetchpv(".", TRUE, SVt_PV);
+ if (gv && GvSV(gv))
+ flip = SvIV(sv) == SvIV(GvSV(gv));
}
- } else {
- flip = SvTRUE(sv);
- }
- if (flip) {
+ } else {
+ flip = SvTRUE(sv);
+ }
+ if (flip) {
sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1);
if (PL_op->op_flags & OPf_SPECIAL) {
sv_setiv(targ, 1);
RETURNOP(((LOGOP*)cUNOP->op_first)->op_other);
}
}
- sv_setpv(TARG, "");
+ sv_setpvn(TARG, "", 0);
SETs(targ);
RETURN;
}
#define RANGE_IS_NUMERIC(left,right) ( \
SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \
SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \
- (((!SvOK(left) && SvOK(right)) || (looks_like_number(left) && \
- SvPOKp(left) && *SvPVX(left) != '0')) && looks_like_number(right)))
+ (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \
+ looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \
+ && (!SvOK(right) || looks_like_number(right))))
PP(pp_flop)
{
if (GIMME == G_ARRAY) {
dPOPPOPssrl;
- register I32 i, j;
- register SV *sv;
- I32 max;
- if (SvGMAGICAL(left))
- mg_get(left);
- if (SvGMAGICAL(right))
- mg_get(right);
+ SvGETMAGIC(left);
+ SvGETMAGIC(right);
if (RANGE_IS_NUMERIC(left,right)) {
- if (SvNV(left) < IV_MIN || SvNV(right) > IV_MAX)
+ register IV i, j;
+ IV max;
+ if ((SvOK(left) && SvNV(left) < IV_MIN) ||
+ (SvOK(right) && SvNV(right) > IV_MAX))
DIE(aTHX_ "Range iterator outside integer range");
i = SvIV(left);
max = SvIV(right);
else
j = 0;
while (j--) {
- sv = sv_2mortal(newSViv(i++));
+ SV * const sv = sv_2mortal(newSViv(i++));
PUSHs(sv);
}
}
else {
- SV *final = sv_mortalcopy(right);
- STRLEN len, n_a;
- char *tmps = SvPV(final, len);
+ SV * const final = sv_mortalcopy(right);
+ STRLEN len;
+ const char * const tmps = SvPV_const(final, len);
- sv = sv_mortalcopy(left);
- SvPV_force(sv,n_a);
+ SV *sv = sv_mortalcopy(left);
+ SvPV_force_nolen(sv);
while (!SvNIOKp(sv) && SvCUR(sv) <= len) {
XPUSHs(sv);
- if (strEQ(SvPVX(sv),tmps))
+ if (strEQ(SvPVX_const(sv),tmps))
break;
sv = sv_2mortal(newSVsv(sv));
sv_inc(sv);
}
else {
dTOPss;
- SV *targ = PAD_SV(cUNOP->op_first->op_targ);
+ SV * const targ = PAD_SV(cUNOP->op_first->op_targ);
int flop = 0;
sv_inc(targ);
flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv));
}
else {
- GV *gv = gv_fetchpv(".", TRUE, SVt_PV);
+ GV * const gv = gv_fetchpv(".", TRUE, SVt_PV);
if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv));
}
}
if (flop) {
sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0);
- sv_catpv(targ, "E0");
+ sv_catpvn(targ, "E0", 2);
}
SETs(targ);
}
/* Control. */
-static char *context_name[] = {
+static const char * const context_name[] = {
"pseudo-block",
"subroutine",
"eval",
};
STATIC I32
-S_dopoptolabel(pTHX_ char *label)
+S_dopoptolabel(pTHX_ const char *label)
{
register I32 i;
- register PERL_CONTEXT *cx;
for (i = cxstack_ix; i >= 0; i--) {
- cx = &cxstack[i];
+ register const PERL_CONTEXT * const cx = &cxstack[i];
switch (CxTYPE(cx)) {
case CXt_SUBST:
case CXt_SUB:
return -1;
break;
case CXt_LOOP:
- if (!cx->blk_loop.label ||
- strNE(label, cx->blk_loop.label) ) {
+ if ( !cx->blk_loop.label || strNE(label, cx->blk_loop.label) ) {
DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n",
(long)i, cx->blk_loop.label));
continue;
I32
Perl_dowantarray(pTHX)
{
- I32 gimme = block_gimme();
+ const I32 gimme = block_gimme();
return (gimme == G_VOID) ? G_SCALAR : gimme;
}
I32
Perl_block_gimme(pTHX)
{
- I32 cxix;
-
- cxix = dopoptosub(cxstack_ix);
+ const I32 cxix = dopoptosub(cxstack_ix);
if (cxix < 0)
return G_VOID;
I32
Perl_is_lvalue_sub(pTHX)
{
- I32 cxix;
-
- cxix = dopoptosub(cxstack_ix);
+ const I32 cxix = dopoptosub(cxstack_ix);
assert(cxix >= 0); /* We should only be called from inside subs */
if (cxstack[cxix].blk_sub.lval && CvLVALUE(cxstack[cxix].blk_sub.cv))
}
STATIC I32
-S_dopoptosub_at(pTHX_ PERL_CONTEXT *cxstk, I32 startingblock)
+S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock)
{
I32 i;
- register PERL_CONTEXT *cx;
for (i = startingblock; i >= 0; i--) {
- cx = &cxstk[i];
+ register const PERL_CONTEXT * const cx = &cxstk[i];
switch (CxTYPE(cx)) {
default:
continue;
S_dopoptoeval(pTHX_ I32 startingblock)
{
I32 i;
- register PERL_CONTEXT *cx;
for (i = startingblock; i >= 0; i--) {
- cx = &cxstack[i];
+ register const PERL_CONTEXT *cx = &cxstack[i];
switch (CxTYPE(cx)) {
default:
continue;
S_dopoptoloop(pTHX_ I32 startingblock)
{
I32 i;
- register PERL_CONTEXT *cx;
for (i = startingblock; i >= 0; i--) {
- cx = &cxstack[i];
+ register const PERL_CONTEXT * const cx = &cxstack[i];
switch (CxTYPE(cx)) {
case CXt_SUBST:
case CXt_SUB:
void
Perl_dounwind(pTHX_ I32 cxix)
{
- register PERL_CONTEXT *cx;
I32 optype;
while (cxstack_ix > cxix) {
SV *sv;
- cx = &cxstack[cxstack_ix];
+ register PERL_CONTEXT *cx = &cxstack[cxstack_ix];
DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n",
(long) cxstack_ix, PL_block_type[CxTYPE(cx)]));
/* Note: we don't need to restore the base context info till the end. */
}
cxstack_ix--;
}
+ PERL_UNUSED_VAR(optype);
}
void
}
OP *
-Perl_die_where(pTHX_ char *message, STRLEN msglen)
+Perl_die_where(pTHX_ const char *message, STRLEN msglen)
{
- STRLEN n_a;
+ dVAR;
if (PL_in_eval) {
I32 cxix;
- register PERL_CONTEXT *cx;
I32 gimme;
- SV **newsp;
if (message) {
if (PL_in_eval & EVAL_KEEPERR) {
- static char prefix[] = "\t(in cleanup) ";
- SV *err = ERRSV;
- char *e = Nullch;
+ static const char prefix[] = "\t(in cleanup) ";
+ SV * const err = ERRSV;
+ const char *e = Nullch;
if (!SvPOK(err))
- sv_setpv(err,"");
+ sv_setpvn(err,"",0);
else if (SvCUR(err) >= sizeof(prefix)+msglen-1) {
- e = SvPV(err, n_a);
- e += n_a - msglen;
+ STRLEN len;
+ e = SvPV_const(err, len);
+ e += len - msglen;
if (*e != *message || strNE(e,message))
e = Nullch;
}
sv_catpvn(err, prefix, sizeof(prefix)-1);
sv_catpvn(err, message, msglen);
if (ckWARN(WARN_MISC)) {
- STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1;
- Perl_warner(aTHX_ packWARN(WARN_MISC), SvPVX(err)+start);
+ const STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1;
+ Perl_warner(aTHX_ packWARN(WARN_MISC), SvPVX_const(err)+start);
}
}
}
if (cxix >= 0) {
I32 optype;
+ register PERL_CONTEXT *cx;
+ SV **newsp;
if (cxix < cxstack_ix)
dounwind(cxix);
POPBLOCK(cx,PL_curpm);
if (CxTYPE(cx) != CXt_EVAL) {
if (!message)
- message = SvPVx(ERRSV, msglen);
+ message = SvPVx_const(ERRSV, msglen);
PerlIO_write(Perl_error_log, "panic: die ", 11);
PerlIO_write(Perl_error_log, message, msglen);
my_exit(1);
PL_curcop = cx->blk_oldcop;
if (optype == OP_REQUIRE) {
- char* msg = SvPVx(ERRSV, n_a);
- SV *nsv = cx->blk_eval.old_namesv;
- (void)hv_store(GvHVn(PL_incgv), SvPVX(nsv), SvCUR(nsv),
+ const char* const msg = SvPVx_nolen_const(ERRSV);
+ SV * const nsv = cx->blk_eval.old_namesv;
+ (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv),
&PL_sv_undef, 0);
DIE(aTHX_ "%sCompilation failed in require",
*msg ? msg : "Unknown error\n");
}
- return pop_return();
+ assert(CxTYPE(cx) == CXt_EVAL);
+ return cx->blk_eval.retop;
}
}
if (!message)
- message = SvPVx(ERRSV, msglen);
+ message = SvPVx_const(ERRSV, msglen);
write_to_stderr(message, msglen);
my_failure_exit();
RETURN;
break;
default:
- if (SvGMAGICAL(sv))
- mg_get(sv);
+ SvGETMAGIC(sv);
if (SvOK(sv))
RETURN;
}
{
dSP;
register I32 cxix = dopoptosub(cxstack_ix);
- register PERL_CONTEXT *cx;
- register PERL_CONTEXT *ccstack = cxstack;
- PERL_SI *top_si = PL_curstackinfo;
- I32 dbcxix;
+ register const PERL_CONTEXT *cx;
+ register const PERL_CONTEXT *ccstack = cxstack;
+ const PERL_SI *top_si = PL_curstackinfo;
I32 gimme;
- char *stashname;
- SV *sv;
+ const char *stashname;
I32 count = 0;
if (MAXARG)
}
RETURN;
}
- if (PL_DBsub && cxix >= 0 &&
+ /* caller() should not report the automatic calls to &DB::sub */
+ if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 &&
ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub))
count++;
if (!count--)
cx = &ccstack[cxix];
if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) {
- dbcxix = dopoptosub_at(ccstack, cxix - 1);
+ const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1);
/* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the
field below is defined for any cx. */
- if (PL_DBsub && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub))
+ /* caller() should not report the automatic calls to &DB::sub */
+ if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub))
cx = &ccstack[dbcxix];
}
GV *cvgv = CvGV(ccstack[cxix].blk_sub.cv);
/* So is ccstack[dbcxix]. */
if (isGV(cvgv)) {
- sv = NEWSV(49, 0);
+ SV * const sv = NEWSV(49, 0);
gv_efullname3(sv, cvgv, Nullch);
PUSHs(sv_2mortal(sv));
PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs)));
if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs
&& CopSTASH_eq(PL_curcop, PL_debstash))
{
- AV *ary = cx->blk_sub.argarray;
- int off = AvARRAY(ary) - AvALLOC(ary);
+ AV * const ary = cx->blk_sub.argarray;
+ const int off = AvARRAY(ary) - AvALLOC(ary);
if (!PL_dbargs) {
GV* tmpgv;
PP(pp_reset)
{
dSP;
- char *tmps;
- STRLEN n_a;
+ const char *tmps;
if (MAXARG < 1)
tmps = "";
else
- tmps = POPpx;
+ tmps = POPpconstx;
sv_reset(tmps, CopSTASH(PL_curcop));
PUSHs(&PL_sv_yes);
RETURN;
PP(pp_dbstate)
{
+ dVAR;
PL_curcop = (COP*)PL_op;
TAINT_NOT; /* Each statement is presumed innocent */
PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp;
dSP;
register CV *cv;
register PERL_CONTEXT *cx;
- I32 gimme = G_ARRAY;
+ const I32 gimme = G_ARRAY;
U8 hasargs;
GV *gv;
hasargs = 0;
SPAGAIN;
- push_return(PL_op->op_next);
- PUSHBLOCK(cx, CXt_SUB, SP);
- PUSHSUB_DB(cx);
- CvDEPTH(cv)++;
- PAD_SET_CUR(CvPADLIST(cv),1);
- RETURNOP(CvSTART(cv));
+ if (CvXSUB(cv)) {
+ CvDEPTH(cv)++;
+ PUSHMARK(SP);
+ (void)(*CvXSUB(cv))(aTHX_ cv);
+ CvDEPTH(cv)--;
+ FREETMPS;
+ LEAVE;
+ return NORMAL;
+ }
+ else {
+ PUSHBLOCK(cx, CXt_SUB, SP);
+ PUSHSUB_DB(cx);
+ cx->blk_sub.retop = PL_op->op_next;
+ CvDEPTH(cv)++;
+ SAVECOMPPAD();
+ PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
+ RETURNOP(CvSTART(cv));
+ }
}
else
return NORMAL;
PP(pp_enteriter)
{
- dSP; dMARK;
+ dVAR; dSP; dMARK;
register PERL_CONTEXT *cx;
- I32 gimme = GIMME_V;
+ const I32 gimme = GIMME_V;
SV **svp;
U32 cxtype = CXt_LOOP;
#ifdef USE_ITHREADS
cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs);
if (SvTYPE(cx->blk_loop.iterary) != SVt_PVAV) {
dPOPss;
- if (RANGE_IS_NUMERIC(sv,(SV*)cx->blk_loop.iterary)) {
- if (SvNV(sv) < IV_MIN ||
- SvNV((SV*)cx->blk_loop.iterary) >= IV_MAX)
+ SV *right = (SV*)cx->blk_loop.iterary;
+ SvGETMAGIC(sv);
+ SvGETMAGIC(right);
+ if (RANGE_IS_NUMERIC(sv,right)) {
+ if ((SvOK(sv) && SvNV(sv) < IV_MIN) ||
+ (SvOK(right) && SvNV(right) >= IV_MAX))
DIE(aTHX_ "Range iterator outside integer range");
cx->blk_loop.iterix = SvIV(sv);
- cx->blk_loop.itermax = SvIV((SV*)cx->blk_loop.iterary);
+ cx->blk_loop.itermax = SvIV(right);
+#ifdef DEBUGGING
+ /* for correct -Dstv display */
+ cx->blk_oldsp = sp - PL_stack_base;
+#endif
}
else {
- STRLEN n_a;
cx->blk_loop.iterlval = newSVsv(sv);
- SvPV_force(cx->blk_loop.iterlval,n_a);
+ (void) SvPV_force_nolen(cx->blk_loop.iterlval);
+ (void) SvPV_nolen_const(right);
}
}
+ else if (PL_op->op_private & OPpITER_REVERSED) {
+ cx->blk_loop.itermax = -1;
+ cx->blk_loop.iterix = AvFILL(cx->blk_loop.iterary);
+
+ }
}
else {
cx->blk_loop.iterary = PL_curstack;
AvFILLp(PL_curstack) = SP - PL_stack_base;
- cx->blk_loop.iterix = MARK - PL_stack_base;
+ if (PL_op->op_private & OPpITER_REVERSED) {
+ cx->blk_loop.itermax = MARK - PL_stack_base;
+ cx->blk_loop.iterix = cx->blk_oldsp;
+ }
+ else {
+ cx->blk_loop.iterix = MARK - PL_stack_base;
+ }
}
RETURN;
PP(pp_enterloop)
{
- dSP;
+ dVAR; dSP;
register PERL_CONTEXT *cx;
- I32 gimme = GIMME_V;
+ const I32 gimme = GIMME_V;
ENTER;
SAVETMPS;
PP(pp_leaveloop)
{
- dSP;
+ dVAR; dSP;
register PERL_CONTEXT *cx;
I32 gimme;
SV **newsp;
SV **mark;
POPBLOCK(cx,newpm);
+ assert(CxTYPE(cx) == CXt_LOOP);
mark = newsp;
newsp = PL_stack_base + cx->blk_loop.resetsp;
PP(pp_return)
{
- dSP; dMARK;
+ dVAR; dSP; dMARK;
I32 cxix;
register PERL_CONTEXT *cx;
bool popsub2 = FALSE;
PMOP *newpm;
I32 optype = 0;
SV *sv;
+ OP *retop;
if (PL_curstackinfo->si_type == PERLSI_SORT) {
if (cxstack_ix == PL_sortcxix
switch (CxTYPE(cx)) {
case CXt_SUB:
popsub2 = TRUE;
+ retop = cx->blk_sub.retop;
cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */
break;
case CXt_EVAL:
if (!(PL_in_eval & EVAL_KEEPERR))
clear_errsv = TRUE;
POPEVAL(cx);
+ retop = cx->blk_eval.retop;
if (CxTRYBLOCK(cx))
break;
lex_end();
(MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) )
{
/* Unassume the success we assumed earlier. */
- SV *nsv = cx->blk_eval.old_namesv;
- (void)hv_delete(GvHVn(PL_incgv), SvPVX(nsv), SvCUR(nsv), G_DISCARD);
+ SV * const nsv = cx->blk_eval.old_namesv;
+ (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD);
DIE(aTHX_ "%"SVf" did not return a true value", nsv);
}
break;
case CXt_FORMAT:
POPFORMAT(cx);
+ retop = cx->blk_sub.retop;
break;
default:
DIE(aTHX_ "panic: return");
LEAVESUB(sv);
if (clear_errsv)
- sv_setpv(ERRSV,"");
- return pop_return();
+ sv_setpvn(ERRSV,"",0);
+ return retop;
}
PP(pp_last)
{
- dSP;
+ dVAR; dSP;
I32 cxix;
register PERL_CONTEXT *cx;
I32 pop2 = 0;
SV **mark;
SV *sv = Nullsv;
+
if (PL_op->op_flags & OPf_SPECIAL) {
cxix = dopoptoloop(cxstack_ix);
if (cxix < 0)
break;
case CXt_SUB:
pop2 = CXt_SUB;
- nextop = pop_return();
+ nextop = cx->blk_sub.retop;
break;
case CXt_EVAL:
POPEVAL(cx);
- nextop = pop_return();
+ nextop = cx->blk_eval.retop;
break;
case CXt_FORMAT:
POPFORMAT(cx);
- nextop = pop_return();
+ nextop = cx->blk_sub.retop;
break;
default:
DIE(aTHX_ "panic: last");
PL_curpm = newpm; /* ... and pop $1 et al */
LEAVESUB(sv);
+ PERL_UNUSED_VAR(optype);
+ PERL_UNUSED_VAR(gimme);
return nextop;
}
PP(pp_next)
{
+ dVAR;
I32 cxix;
register PERL_CONTEXT *cx;
I32 inner;
TOPBLOCK(cx);
if (PL_scopestack_ix < inner)
leave_scope(PL_scopestack[PL_scopestack_ix]);
+ PL_curcop = cx->blk_oldcop;
return cx->blk_loop.next_op;
}
PP(pp_redo)
{
+ dVAR;
I32 cxix;
register PERL_CONTEXT *cx;
I32 oldsave;
+ OP* redo_op;
if (PL_op->op_flags & OPf_SPECIAL) {
cxix = dopoptoloop(cxstack_ix);
if (cxix < cxstack_ix)
dounwind(cxix);
+ redo_op = cxstack[cxix].blk_loop.redo_op;
+ if (redo_op->op_type == OP_ENTER) {
+ /* pop one less context to avoid $x being freed in while (my $x..) */
+ cxstack_ix++;
+ assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK);
+ redo_op = redo_op->op_next;
+ }
+
TOPBLOCK(cx);
oldsave = PL_scopestack[PL_scopestack_ix - 1];
LEAVE_SCOPE(oldsave);
FREETMPS;
- return cx->blk_loop.redo_op;
+ PL_curcop = cx->blk_oldcop;
+ return redo_op;
}
STATIC OP *
-S_dofindlabel(pTHX_ OP *o, char *label, OP **opstack, OP **oplimit)
+S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit)
{
- OP *kid = Nullop;
OP **ops = opstack;
- static char too_deep[] = "Target of goto is too deeply nested";
+ static const char too_deep[] = "Target of goto is too deeply nested";
if (ops >= oplimit)
Perl_croak(aTHX_ too_deep);
}
*ops = 0;
if (o->op_flags & OPf_KIDS) {
+ OP *kid;
/* First try all the kids at this level, since that's likeliest. */
for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) {
if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) &&
PP(pp_goto)
{
- dSP;
+ dVAR; dSP;
OP *retop = 0;
I32 ix;
register PERL_CONTEXT *cx;
#define GOTO_DEPTH 64
OP *enterops[GOTO_DEPTH];
- char *label;
- int do_dump = (PL_op->op_type == OP_DUMP);
- static char must_have_label[] = "goto must have label";
- AV *oldav = Nullav;
+ const char *label = 0;
+ const bool do_dump = (PL_op->op_type == OP_DUMP);
+ static const char must_have_label[] = "goto must have label";
- label = 0;
if (PL_op->op_flags & OPf_STACKED) {
- SV *sv = POPs;
- STRLEN n_a;
+ SV * const sv = POPs;
/* This egregious kludge implements goto &subroutine */
if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) {
SV** mark;
I32 items = 0;
I32 oldsave;
+ bool reified = 0;
retry:
if (!CvROOT(cv) && !CvXSUB(cv)) {
- GV *gv = CvGV(cv);
- GV *autogv;
+ const GV * const gv = CvGV(cv);
if (gv) {
+ GV *autogv;
SV *tmpstr;
/* autoloaded stub? */
if (cv != GvCV(gv) && (cv = GvCV(gv)))
}
/* First do some returnish stuff. */
- SvREFCNT_inc(cv); /* avoid premature free during unwind */
+ (void)SvREFCNT_inc(cv); /* avoid premature free during unwind */
FREETMPS;
cxix = dopoptosub(cxstack_ix);
if (cxix < 0)
if (cxix < cxstack_ix)
dounwind(cxix);
TOPBLOCK(cx);
- if (CxREALEVAL(cx))
- DIE(aTHX_ "Can't goto subroutine from an eval-string");
- mark = PL_stack_sp;
+ SPAGAIN;
+ /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */
+ if (CxTYPE(cx) == CXt_EVAL) {
+ if (CxREALEVAL(cx))
+ DIE(aTHX_ "Can't goto subroutine from an eval-string");
+ else
+ DIE(aTHX_ "Can't goto subroutine from an eval-block");
+ }
if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs) {
/* put @_ back onto stack */
AV* av = cx->blk_sub.argarray;
-
+
items = AvFILLp(av) + 1;
- PL_stack_sp++;
- EXTEND(PL_stack_sp, items); /* @_ could have been extended. */
- Copy(AvARRAY(av), PL_stack_sp, items, SV*);
- PL_stack_sp += items;
+ EXTEND(SP, items+1); /* @_ could have been extended. */
+ Copy(AvARRAY(av), SP + 1, items, SV*);
SvREFCNT_dec(GvAV(PL_defgv));
GvAV(PL_defgv) = cx->blk_sub.savearray;
+ CLEAR_ARGARRAY(av);
/* abandon @_ if it got reified */
if (AvREAL(av)) {
- oldav = av; /* delay until return */
+ reified = 1;
+ SvREFCNT_dec(av);
av = newAV();
av_extend(av, items-1);
- AvFLAGS(av) = AVf_REIFY;
+ AvREIFY_only(av);
PAD_SVl(0) = (SV*)(cx->blk_sub.argarray = av);
}
- else
- CLEAR_ARGARRAY(av);
}
else if (CvXSUB(cv)) { /* put GvAV(defgv) back onto stack */
- AV* av;
- av = GvAV(PL_defgv);
+ AV* const av = GvAV(PL_defgv);
items = AvFILLp(av) + 1;
- PL_stack_sp++;
- EXTEND(PL_stack_sp, items); /* @_ could have been extended. */
- Copy(AvARRAY(av), PL_stack_sp, items, SV*);
- PL_stack_sp += items;
+ EXTEND(SP, items+1); /* @_ could have been extended. */
+ Copy(AvARRAY(av), SP + 1, items, SV*);
}
+ mark = SP;
+ SP += items;
if (CxTYPE(cx) == CXt_SUB &&
!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth))
SvREFCNT_dec(cx->blk_sub.cv);
/* Now do some callish stuff. */
SAVETMPS;
- /* For reified @_, delay freeing till return from new sub */
- if (oldav)
- SAVEFREESV((SV*)oldav);
SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */
if (CvXSUB(cv)) {
+ OP* retop = cx->blk_sub.retop;
+ if (reified) {
+ I32 index;
+ for (index=0; index<items; index++)
+ sv_2mortal(SP[-index]);
+ }
#ifdef PERL_XSUB_OLDSTYLE
if (CvOLDSTYLE(cv)) {
I32 (*fp3)(int,int,int);
SV **newsp;
I32 gimme;
- PL_stack_sp--; /* There is no cv arg. */
+ /* XS subs don't have a CxSUB, so pop it */
+ POPBLOCK(cx, PL_curpm);
/* Push a mark for the start of arglist */
PUSHMARK(mark);
+ PUTBACK;
(void)(*CvXSUB(cv))(aTHX_ cv);
- /* Pop the current context like a decent sub should */
- POPBLOCK(cx, PL_curpm);
- /* Do _not_ use PUTBACK, keep the XSUB's return stack! */
+ /* Put these at the bottom since the vars are set but not used */
+ PERL_UNUSED_VAR(newsp);
+ PERL_UNUSED_VAR(gimme);
}
LEAVE;
- return pop_return();
+ return retop;
}
else {
AV* padlist = CvPADLIST(cv);
else {
if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION))
sub_crush_depth(cv);
- pad_push(padlist, CvDEPTH(cv), cx->blk_sub.hasargs);
+ pad_push(padlist, CvDEPTH(cv));
}
- PAD_SET_CUR(padlist, CvDEPTH(cv));
+ SAVECOMPPAD();
+ PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv));
if (cx->blk_sub.hasargs)
{
AV* av = (AV*)PAD_SVl(0);
GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av);
CX_CURPAD_SAVE(cx->blk_sub);
cx->blk_sub.argarray = av;
- ++mark;
if (items >= AvMAX(av) + 1) {
ary = AvALLOC(av);
if (AvARRAY(av) != ary) {
AvMAX(av) += AvARRAY(av) - AvALLOC(av);
- SvPVX(av) = (char*)ary;
+ SvPV_set(av, (char*)ary);
}
if (items >= AvMAX(av) + 1) {
AvMAX(av) = items - 1;
Renew(ary,items+1,SV*);
AvALLOC(av) = ary;
- SvPVX(av) = (char*)ary;
+ SvPV_set(av, (char*)ary);
}
}
+ ++mark;
Copy(mark,AvARRAY(av),items,SV*);
AvFILLp(av) = items - 1;
assert(!AvREAL(av));
+ if (reified) {
+ /* transfer 'ownership' of refcnts to new @_ */
+ AvREAL_on(av);
+ AvREIFY_off(av);
+ }
while (items--) {
if (*mark)
SvTEMP_off(*mark);
* We do not care about using sv to call CV;
* it's for informational purposes only.
*/
- SV *sv = GvSV(PL_DBsub);
+ SV * const sv = GvSV(PL_DBsub);
CV *gotocv;
-
+
+ save_item(sv);
if (PERLDB_SUB_NN) {
- (void)SvUPGRADE(sv, SVt_PVIV);
+ const int type = SvTYPE(sv);
+ if (type < SVt_PVIV && type != SVt_IV)
+ sv_upgrade(sv, SVt_PVIV);
(void)SvIOK_on(sv);
- SAVEIV(SvIVX(sv));
- SvIVX(sv) = PTR2IV(cv); /* Do it the quickest way */
+ SvIV_set(sv, PTR2IV(cv)); /* Do it the quickest way */
} else {
- save_item(sv);
gv_efullname3(sv, CvGV(cv), Nullch);
}
if ( PERLDB_GOTO
}
}
else {
- label = SvPV(sv,n_a);
+ label = SvPV_nolen_const(sv);
if (!(do_dump || *label))
DIE(aTHX_ must_have_label);
}
PP(pp_nswitch)
{
dSP;
- NV value = SvNVx(GvSV(cCOP->cop_gv));
+ const NV value = SvNVx(GvSV(cCOP->cop_gv));
register I32 match = I_32(value);
if (value < 0.0) {
if (PL_multiline)
PL_op = PL_op->op_next; /* can't assume anything */
else {
- STRLEN n_a;
- match = *(SvPVx(GvSV(cCOP->cop_gv), n_a)) & 255;
+ match = *(SvPVx_nolen_const(GvSV(cCOP->cop_gv))) & 255;
match -= cCOP->uop.scop.scop_offset;
if (match < 0)
match = 0;
STATIC void
S_save_lines(pTHX_ AV *array, SV *sv)
{
- register char *s = SvPVX(sv);
- register char *send = SvPVX(sv) + SvCUR(sv);
- register char *t;
- register I32 line = 1;
+ const char *s = SvPVX_const(sv);
+ const char * const send = SvPVX_const(sv) + SvCUR(sv);
+ I32 line = 1;
while (s && s < send) {
- SV *tmpstr = NEWSV(85,0);
+ const char *t;
+ SV * const tmpstr = NEWSV(85,0);
sv_upgrade(tmpstr, SVt_PVMG);
t = strchr(s, '\n');
}
}
-#ifdef PERL_FLEXIBLE_EXCEPTIONS
-STATIC void *
-S_docatch_body(pTHX_ va_list args)
-{
- return docatch_body();
-}
-#endif
-
-STATIC void *
+STATIC void
S_docatch_body(pTHX)
{
CALLRUNOPS(aTHX);
- return NULL;
+ return;
}
STATIC OP *
S_docatch(pTHX_ OP *o)
{
int ret;
- OP *oldop = PL_op;
- OP *retop;
- volatile PERL_SI *cursi = PL_curstackinfo;
+ OP * const oldop = PL_op;
dJMPENV;
#ifdef DEBUGGING
#endif
PL_op = o;
- /* Normally, the leavetry at the end of this block of ops will
- * pop an op off the return stack and continue there. By setting
- * the op to Nullop, we force an exit from the inner runops()
- * loop. DAPM.
- */
- retop = pop_return();
- push_return(Nullop);
-
-#ifdef PERL_FLEXIBLE_EXCEPTIONS
- redo_body:
- CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_docatch_body));
-#else
JMPENV_PUSH(ret);
-#endif
switch (ret) {
case 0:
-#ifndef PERL_FLEXIBLE_EXCEPTIONS
+ assert(cxstack_ix >= 0);
+ assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL);
+ cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env;
redo_body:
docatch_body();
-#endif
break;
case 3:
/* die caught by an inner eval - continue inner loop */
- if (PL_restartop && cursi == PL_curstackinfo) {
+
+ /* NB XXX we rely on the old popped CxEVAL still being at the top
+ * of the stack; the way die_where() currently works, this
+ * assumption is valid. In theory The cur_top_env value should be
+ * returned in another global, the way retop (aka PL_restartop)
+ * is. */
+ assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL);
+
+ if (PL_restartop
+ && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env)
+ {
PL_op = PL_restartop;
PL_restartop = 0;
goto redo_body;
}
- /* a die in this eval - continue in outer loop */
- if (!PL_restartop)
- break;
/* FALL THROUGH */
default:
JMPENV_POP;
}
JMPENV_POP;
PL_op = oldop;
- return retop;
+ return Nullop;
}
OP *
-Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, char *code, PAD** padp)
+Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp)
/* sv Text to convert to OP tree. */
/* startop op_free() this to undo. */
/* code Short string id of the caller. */
{
- dSP; /* Make POPBLOCK work. */
+ dVAR; dSP; /* Make POPBLOCK work. */
PERL_CONTEXT *cx;
SV **newsp;
- I32 gimme = 0; /* SUSPECT - INITIALZE TO WHAT? NI-S */
+ I32 gimme = G_VOID;
I32 optype;
OP dummy;
OP *rop;
CopSTASH_set(&PL_compiling, PL_curstash);
}
if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) {
- SV *sv = sv_newmortal();
+ SV * const sv = sv_newmortal();
Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]",
code, (unsigned long)++PL_evalseq,
CopFILE(PL_curcop), (IV)CopLINE(PL_curcop));
#ifdef OP_IN_REGISTER
op = PL_opsave;
#endif
+ PERL_UNUSED_VAR(newsp);
+ PERL_UNUSED_VAR(optype);
+
return rop;
}
If db_seqp is non_null, skip CVs that are in the DB package and populate
*db_seqp with the cop sequence number at the point that the DB:: code was
entered. (allows debuggers to eval in the scope of the breakpoint rather
-than in in the scope of the debuger itself).
+than in the scope of the debugger itself).
=cut
*/
CV*
Perl_find_runcv(pTHX_ U32 *db_seqp)
{
- I32 ix;
PERL_SI *si;
- PERL_CONTEXT *cx;
if (db_seqp)
*db_seqp = PL_curcop->cop_seq;
for (si = PL_curstackinfo; si; si = si->si_prev) {
+ I32 ix;
for (ix = si->si_cxix; ix >= 0; ix--) {
- cx = &(si->si_cxstack[ix]);
+ const PERL_CONTEXT *cx = &(si->si_cxstack[ix]);
if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) {
- CV *cv = cx->blk_sub.cv;
+ CV * const cv = cx->blk_sub.cv;
/* skip DB:: code */
if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) {
*db_seqp = cx->blk_oldcop->cop_seq;
STATIC OP *
S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq)
{
- dSP;
- OP *saveop = PL_op;
+ dVAR; dSP;
+ OP * const saveop = PL_op;
PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE)
? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL))
if (saveop && saveop->op_flags & OPf_SPECIAL)
PL_in_eval |= EVAL_KEEPERR;
else
- sv_setpv(ERRSV,"");
+ sv_setpvn(ERRSV,"",0);
if (yyparse() || PL_error_count || !PL_eval_root) {
SV **newsp; /* Used by POPBLOCK. */
- PERL_CONTEXT *cx = &cxstack[cxstack_ix];
+ PERL_CONTEXT *cx = &cxstack[cxstack_ix];
I32 optype = 0; /* Might be reset by POPEVAL. */
- STRLEN n_a;
-
+ const char *msg;
+
PL_op = saveop;
if (PL_eval_root) {
op_free(PL_eval_root);
if (!startop) {
POPBLOCK(cx,PL_curpm);
POPEVAL(cx);
- pop_return();
}
lex_end();
LEAVE;
+
+ msg = SvPVx_nolen_const(ERRSV);
if (optype == OP_REQUIRE) {
- char* msg = SvPVx(ERRSV, n_a);
- SV *nsv = cx->blk_eval.old_namesv;
- (void)hv_store(GvHVn(PL_incgv), SvPVX(nsv), SvCUR(nsv),
+ const SV * const nsv = cx->blk_eval.old_namesv;
+ (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv),
&PL_sv_undef, 0);
DIE(aTHX_ "%sCompilation failed in require",
*msg ? msg : "Unknown error\n");
}
else if (startop) {
- char* msg = SvPVx(ERRSV, n_a);
-
POPBLOCK(cx,PL_curpm);
POPEVAL(cx);
Perl_croak(aTHX_ "%sCompilation failed in regexp",
(*msg ? msg : "Unknown error\n"));
}
else {
- char* msg = SvPVx(ERRSV, n_a);
if (!*msg) {
sv_setpv(ERRSV, "Compilation error");
}
}
+ PERL_UNUSED_VAR(newsp);
RETPUSHUNDEF;
}
CopLINE_set(&PL_compiling, 0);
/* Register with debugger: */
if (PERLDB_INTER && saveop->op_type == OP_REQUIRE) {
- CV *cv = get_cv("DB::postponed", FALSE);
+ CV * const cv = get_cv("DB::postponed", FALSE);
if (cv) {
dSP;
PUSHMARK(SP);
S_doopen_pm(pTHX_ const char *name, const char *mode)
{
#ifndef PERL_DISABLE_PMC
- STRLEN namelen = strlen(name);
+ const STRLEN namelen = strlen(name);
PerlIO *fp;
if (namelen > 3 && strEQ(name + namelen - 3, ".pm")) {
- SV *pmcsv = Perl_newSVpvf(aTHX_ "%s%c", name, 'c');
- char *pmc = SvPV_nolen(pmcsv);
- Stat_t pmstat;
+ SV * const pmcsv = Perl_newSVpvf(aTHX_ "%s%c", name, 'c');
+ const char * const pmc = SvPV_nolen_const(pmcsv);
Stat_t pmcstat;
if (PerlLIO_stat(pmc, &pmcstat) < 0) {
fp = PerlIO_open(name, mode);
}
else {
+ Stat_t pmstat;
if (PerlLIO_stat(name, &pmstat) < 0 ||
pmstat.st_mtime < pmcstat.st_mtime)
{
PP(pp_require)
{
- dSP;
+ dVAR; dSP;
register PERL_CONTEXT *cx;
SV *sv;
- char *name;
+ const char *name;
STRLEN len;
- char *tryname = Nullch;
+ const char *tryname = Nullch;
SV *namesv = Nullsv;
- SV** svp;
- I32 gimme = GIMME_V;
+ const I32 gimme = GIMME_V;
PerlIO *tryrsfp = 0;
- STRLEN n_a;
int filter_has_file = 0;
GV *filter_child_proc = 0;
SV *filter_state = 0;
OP *op;
sv = POPs;
- if (SvNIOKp(sv) && PL_op->op_type != OP_DOFILE) {
- if (SvPOK(sv) && SvNOK(sv) && SvNV(sv)) { /* require v5.6.1 */
- UV rev = 0, ver = 0, sver = 0;
- STRLEN len;
- U8 *s = (U8*)SvPVX(sv);
- U8 *end = (U8*)SvPVX(sv) + SvCUR(sv);
- if (s < end) {
- rev = utf8n_to_uvchr(s, end - s, &len, 0);
- s += len;
- if (s < end) {
- ver = utf8n_to_uvchr(s, end - s, &len, 0);
- s += len;
- if (s < end)
- sver = utf8n_to_uvchr(s, end - s, &len, 0);
- }
- }
- if (PERL_REVISION < rev
- || (PERL_REVISION == rev
- && (PERL_VERSION < ver
- || (PERL_VERSION == ver
- && PERL_SUBVERSION < sver))))
- {
- DIE(aTHX_ "Perl v%"UVuf".%"UVuf".%"UVuf" required--this is only "
- "v%d.%d.%d, stopped", rev, ver, sver, PERL_REVISION,
- PERL_VERSION, PERL_SUBVERSION);
- }
- if (ckWARN(WARN_PORTABLE))
+ if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) {
+ if ( SvVOK(sv) && ckWARN(WARN_PORTABLE) ) /* require v5.6.1 */
Perl_warner(aTHX_ packWARN(WARN_PORTABLE),
"v-string in use/require non-portable");
- RETPUSHYES;
+
+ sv = new_version(sv);
+ if (!sv_derived_from(PL_patchlevel, "version"))
+ (void *)upg_version(PL_patchlevel);
+ if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) {
+ if ( vcmp(sv,PL_patchlevel) < 0 )
+ DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped",
+ vnormal(sv), vnormal(PL_patchlevel));
}
- else if (!SvPOKp(sv)) { /* require 5.005_03 */
- if ((NV)PERL_REVISION + ((NV)PERL_VERSION/(NV)1000)
- + ((NV)PERL_SUBVERSION/(NV)1000000)
- + 0.00000099 < SvNV(sv))
- {
- NV nrev = SvNV(sv);
- UV rev = (UV)nrev;
- NV nver = (nrev - rev) * 1000;
- UV ver = (UV)(nver + 0.0009);
- NV nsver = (nver - ver) * 1000;
- UV sver = (UV)(nsver + 0.0009);
-
- /* help out with the "use 5.6" confusion */
- if (sver == 0 && (rev > 5 || (rev == 5 && ver >= 100))) {
- DIE(aTHX_ "Perl v%"UVuf".%"UVuf".%"UVuf" required"
- " (did you mean v%"UVuf".%03"UVuf"?)--"
- "this is only v%d.%d.%d, stopped",
- rev, ver, sver, rev, ver/100,
- PERL_REVISION, PERL_VERSION, PERL_SUBVERSION);
- }
- else {
- DIE(aTHX_ "Perl v%"UVuf".%"UVuf".%"UVuf" required--"
- "this is only v%d.%d.%d, stopped",
- rev, ver, sver, PERL_REVISION, PERL_VERSION,
- PERL_SUBVERSION);
- }
- }
- RETPUSHYES;
+ else {
+ if ( vcmp(sv,PL_patchlevel) > 0 )
+ DIE(aTHX_ "Perl %"SVf" required--this is only %"SVf", stopped",
+ vnormal(sv), vnormal(PL_patchlevel));
}
+
+ RETPUSHYES;
}
- name = SvPV(sv, len);
+ name = SvPV_const(sv, len);
if (!(name && len > 0 && *name))
DIE(aTHX_ "Null filename used");
TAINT_PROPER("require");
- if (PL_op->op_type == OP_REQUIRE &&
- (svp = hv_fetch(GvHVn(PL_incgv), name, len, 0))) {
- if (*svp != &PL_sv_undef)
- RETPUSHYES;
- else
- DIE(aTHX_ "Compilation failed in require");
+ if (PL_op->op_type == OP_REQUIRE) {
+ SV ** const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0);
+ if ( svp ) {
+ if (*svp != &PL_sv_undef)
+ RETPUSHYES;
+ else
+ DIE(aTHX_ "Compilation failed in require");
+ }
}
/* prepare to compile file */
}
#endif
if (!tryrsfp) {
- AV *ar = GvAVn(PL_incgv);
+ AV * const ar = GvAVn(PL_incgv);
I32 i;
#ifdef VMS
char *unixname;
Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s",
PTR2UV(SvRV(dirsv)), name);
- tryname = SvPVX(namesv);
+ tryname = SvPVX_const(namesv);
tryrsfp = 0;
ENTER;
|| (*name == ':' && name[1] != ':' && strchr(name+2, ':'))
#endif
) {
- char *dir = SvPVx(dirsv, n_a);
+ const char *dir = SvPVx_nolen_const(dirsv);
#ifdef MACOS_TRADITIONAL
char buf1[256];
char buf2[256];
MacPerl_CanonDir(name, buf2, 1);
Perl_sv_setpvf(aTHX_ namesv, "%s%s", MacPerl_CanonDir(dir, buf1, 0), buf2+(buf2[0] == ':'));
#else
-#ifdef VMS
+# ifdef VMS
char *unixdir;
if ((unixdir = tounixpath(dir, Nullch)) == Nullch)
continue;
sv_setpv(namesv, unixdir);
sv_catpv(namesv, unixname);
-#else
+# else
+# ifdef __SYMBIAN32__
+ if (PL_origfilename[0] &&
+ PL_origfilename[1] == ':' &&
+ !(dir[0] && dir[1] == ':'))
+ Perl_sv_setpvf(aTHX_ namesv,
+ "%c:%s\\%s",
+ PL_origfilename[0],
+ dir, name);
+ else
+ Perl_sv_setpvf(aTHX_ namesv,
+ "%s\\%s",
+ dir, name);
+# else
Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name);
-#endif
+# endif
+# endif
#endif
TAINT_PROPER("require");
- tryname = SvPVX(namesv);
+ tryname = SvPVX_const(namesv);
tryrsfp = doopen_pm(tryname, PERL_SCRIPT_MODE);
if (tryrsfp) {
if (tryname[0] == '.' && tryname[1] == '/')
SvREFCNT_dec(namesv);
if (!tryrsfp) {
if (PL_op->op_type == OP_REQUIRE) {
- char *msgstr = name;
- if (namesv) { /* did we lookup @INC? */
- SV *msg = sv_2mortal(newSVpv(msgstr,0));
- SV *dirmsgsv = NEWSV(0, 0);
- AV *ar = GvAVn(PL_incgv);
- I32 i;
- sv_catpvn(msg, " in @INC", 8);
- if (instr(SvPVX(msg), ".h "))
- sv_catpv(msg, " (change .h to .ph maybe?)");
- if (instr(SvPVX(msg), ".ph "))
- sv_catpv(msg, " (did you run h2ph?)");
- sv_catpv(msg, " (@INC contains:");
- for (i = 0; i <= AvFILL(ar); i++) {
- char *dir = SvPVx(*av_fetch(ar, i, TRUE), n_a);
- Perl_sv_setpvf(aTHX_ dirmsgsv, " %s", dir);
- sv_catsv(msg, dirmsgsv);
- }
- sv_catpvn(msg, ")", 1);
- SvREFCNT_dec(dirmsgsv);
- msgstr = SvPV_nolen(msg);
+ const char *msgstr = name;
+ if(errno == EMFILE) {
+ SV * const msg = sv_2mortal(newSVpv(msgstr,0));
+ sv_catpv(msg, ": ");
+ sv_catpv(msg, Strerror(errno));
+ msgstr = SvPV_nolen_const(msg);
+ } else {
+ if (namesv) { /* did we lookup @INC? */
+ SV * const msg = sv_2mortal(newSVpv(msgstr,0));
+ SV * const dirmsgsv = NEWSV(0, 0);
+ AV * const ar = GvAVn(PL_incgv);
+ I32 i;
+ sv_catpvn(msg, " in @INC", 8);
+ if (instr(SvPVX_const(msg), ".h "))
+ sv_catpv(msg, " (change .h to .ph maybe?)");
+ if (instr(SvPVX_const(msg), ".ph "))
+ sv_catpv(msg, " (did you run h2ph?)");
+ sv_catpv(msg, " (@INC contains:");
+ for (i = 0; i <= AvFILL(ar); i++) {
+ const char *dir = SvPVx_nolen_const(*av_fetch(ar, i, TRUE));
+ Perl_sv_setpvf(aTHX_ dirmsgsv, " %s", dir);
+ sv_catsv(msg, dirmsgsv);
+ }
+ sv_catpvn(msg, ")", 1);
+ SvREFCNT_dec(dirmsgsv);
+ msgstr = SvPV_nolen_const(msg);
+ }
}
DIE(aTHX_ "Can't locate %s", msgstr);
}
/* Assume success here to prevent recursive requirement. */
len = strlen(name);
/* Check whether a hook in @INC has already filled %INC */
- if (!hook_sv || !(svp = hv_fetch(GvHVn(PL_incgv), name, len, 0))) {
- (void)hv_store(GvHVn(PL_incgv), name, len,
- (hook_sv ? SvREFCNT_inc(hook_sv)
- : newSVpv(CopFILE(&PL_compiling), 0)),
- 0 );
+ if (!hook_sv) {
+ (void)hv_store(GvHVn(PL_incgv), name, len, newSVpv(CopFILE(&PL_compiling),0),0);
+ } else {
+ SV** const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0);
+ if (!svp)
+ (void)hv_store(GvHVn(PL_incgv), name, len, SvREFCNT_inc(hook_sv), 0 );
}
ENTER;
PL_compiling.cop_io = Nullsv;
if (filter_sub || filter_child_proc) {
- SV *datasv = filter_add(run_user_filter, Nullsv);
+ SV * const datasv = filter_add(run_user_filter, Nullsv);
IoLINES(datasv) = filter_has_file;
IoFMT_GV(datasv) = (GV *)filter_child_proc;
IoTOP_GV(datasv) = (GV *)filter_state;
}
/* switch to eval mode */
- push_return(PL_op->op_next);
PUSHBLOCK(cx, CXt_EVAL, SP);
PUSHEVAL(cx, name, Nullgv);
+ cx->blk_eval.retop = PL_op->op_next;
SAVECOPLINE(&PL_compiling);
CopLINE_set(&PL_compiling, 0);
PL_encoding = Nullsv;
op = DOCATCH(doeval(gimme, NULL, Nullcv, PL_curcop->cop_seq));
-
+
/* Restore encoding. */
PL_encoding = encoding;
PP(pp_entereval)
{
- dSP;
+ dVAR; dSP;
register PERL_CONTEXT *cx;
dPOPss;
- I32 gimme = GIMME_V, was = PL_sub_generation;
+ const I32 gimme = GIMME_V;
+ const I32 was = PL_sub_generation;
char tbuf[TYPE_DIGITS(long) + 12];
char *tmpbuf = tbuf;
char *safestr;
CV* runcv;
U32 seq;
- if (!SvPV(sv,len))
+ if (!SvPV_const(sv,len))
RETPUSHUNDEF;
TAINT_PROPER("eval");
/* switch to eval mode */
if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) {
- SV *sv = sv_newmortal();
+ SV * const sv = sv_newmortal();
Perl_sv_setpvf(aTHX_ sv, "_<(eval %lu)[%s:%"IVdf"]",
(unsigned long)++PL_evalseq,
CopFILE(PL_curcop), (IV)CopLINE(PL_curcop));
* to do the dirty work for us */
runcv = find_runcv(&seq);
- push_return(PL_op->op_next);
PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP);
PUSHEVAL(cx, 0, Nullgv);
+ cx->blk_eval.retop = PL_op->op_next;
/* prepare to compile string */
PP(pp_leaveeval)
{
- dSP;
+ dVAR; dSP;
register SV **mark;
SV **newsp;
PMOP *newpm;
I32 gimme;
register PERL_CONTEXT *cx;
OP *retop;
- U8 save_flags = PL_op -> op_flags;
+ const U8 save_flags = PL_op -> op_flags;
I32 optype;
POPBLOCK(cx,newpm);
POPEVAL(cx);
- retop = pop_return();
+ retop = cx->blk_eval.retop;
TAINT_NOT;
if (gimme == G_VOID)
!(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp))
{
/* Unassume the success we assumed earlier. */
- SV *nsv = cx->blk_eval.old_namesv;
- (void)hv_delete(GvHVn(PL_incgv), SvPVX(nsv), SvCUR(nsv), G_DISCARD);
+ SV * const nsv = cx->blk_eval.old_namesv;
+ (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD);
retop = Perl_die(aTHX_ "%"SVf" did not return a true value", nsv);
/* die_where() did LEAVE, or we won't be here */
}
else {
LEAVE;
if (!(save_flags & OPf_SPECIAL))
- sv_setpv(ERRSV,"");
+ sv_setpvn(ERRSV,"",0);
}
RETURNOP(retop);
PP(pp_entertry)
{
- dSP;
+ dVAR; dSP;
register PERL_CONTEXT *cx;
- I32 gimme = GIMME_V;
+ const I32 gimme = GIMME_V;
ENTER;
SAVETMPS;
- push_return(cLOGOP->op_other->op_next);
PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), SP);
PUSHEVAL(cx, 0, 0);
+ cx->blk_eval.retop = cLOGOP->op_other->op_next;
PL_in_eval = EVAL_INEVAL;
- sv_setpv(ERRSV,"");
+ sv_setpvn(ERRSV,"",0);
PUTBACK;
return DOCATCH(PL_op->op_next);
}
PP(pp_leavetry)
{
- dSP;
+ dVAR; dSP;
register SV **mark;
SV **newsp;
PMOP *newpm;
- OP* retop;
I32 gimme;
register PERL_CONTEXT *cx;
I32 optype;
POPBLOCK(cx,newpm);
POPEVAL(cx);
- retop = pop_return();
+ PERL_UNUSED_VAR(optype);
TAINT_NOT;
if (gimme == G_VOID)
PL_curpm = newpm; /* Don't pop $1 et al till now */
LEAVE;
- sv_setpv(ERRSV,"");
- RETURNOP(retop);
+ sv_setpvn(ERRSV,"",0);
+ RETURN;
}
STATIC OP *
s = base;
base = Nullch;
- New(804, fops, maxops, U32);
+ Newx(fops, maxops, U32);
fpc = fops;
if (s < send) {
while (*s == '#')
s++;
if (*s == '.') {
- char *f;
- s++;
- f = s;
+ const char * const f = ++s;
while (*s == '#')
s++;
arg |= 256 + (s - f);
while (*s == '#')
s++;
if (*s == '.') {
- char *f;
- s++;
- f = s;
+ const char * const f = ++s;
while (*s == '#')
s++;
arg |= 256 + (s - f);
sv_magic(sv, Nullsv, PERL_MAGIC_fm, Nullch, 0);
SvCOMPILED_on(sv);
- if (unchopnum && repeat)
+ if (unchopnum && repeat)
DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)");
return 0;
}
static I32
run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen)
{
+ dVAR;
SV *datasv = FILTER_DATA(idx);
- int filter_has_file = IoLINES(datasv);
+ const int filter_has_file = IoLINES(datasv);
GV *filter_child_proc = (GV *)IoFMT_GV(datasv);
SV *filter_state = (SV *)IoTOP_GV(datasv);
SV *filter_sub = (SV *)IoBOTTOM_GV(datasv);
/* perhaps someone can come up with a better name for
this? it is not really "absolute", per se ... */
static bool
-S_path_is_absolute(pTHX_ char *name)
+S_path_is_absolute(pTHX_ const char *name)
{
if (PERL_FILE_IS_ABSOLUTE(name)
#ifdef MACOS_TRADITIONAL
else
return FALSE;
}
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
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