[perl5.git] / scope.c

/*    scope.c
 *
 *    Copyright (c) 1991-1997, Larry Wall
 *
 *    You may distribute under the terms of either the GNU General Public
 *    License or the Artistic License, as specified in the README file.
 *
 */

/*
 * "For the fashion of Minas Tirith was such that it was built on seven
 * levels..."
 */

#include "EXTERN.h"
#include "perl.h"

SV**
stack_grow(sp, p, n)
SV** sp;
SV** p;
int n;
{
    stack_sp = sp;
    av_extend(curstack, (p - stack_base) + (n) + 128);
    return stack_sp;
}

I32
cxinc()
{
    cxstack_max = cxstack_max * 3 / 2;
    Renew(cxstack, cxstack_max + 1, CONTEXT);	/* XXX should fix CXINC macro */
    return cxstack_ix + 1;
}

void
push_return(retop)
OP *retop;
{
    if (retstack_ix == retstack_max) {
	retstack_max = retstack_max * 3 / 2;
	Renew(retstack, retstack_max, OP*);
    }
    retstack[retstack_ix++] = retop;
}

OP *
pop_return()
{
    if (retstack_ix > 0)
	return retstack[--retstack_ix];
    else
	return Nullop;
}

void
push_scope()
{
    if (scopestack_ix == scopestack_max) {
	scopestack_max = scopestack_max * 3 / 2;
	Renew(scopestack, scopestack_max, I32);
    }
    scopestack[scopestack_ix++] = savestack_ix;

}

void
pop_scope()
{
    I32 oldsave = scopestack[--scopestack_ix];
    LEAVE_SCOPE(oldsave);
}

void
markstack_grow()
{
    I32 oldmax = markstack_max - markstack;
    I32 newmax = oldmax * 3 / 2;

    Renew(markstack, newmax, I32);
    markstack_ptr = markstack + oldmax;
    markstack_max = markstack + newmax;
}

void
savestack_grow()
{
    savestack_max = savestack_max * 3 / 2;
    Renew(savestack, savestack_max, ANY);
}

void
free_tmps()
{
    /* XXX should tmps_floor live in cxstack? */
    I32 myfloor = tmps_floor;
    while (tmps_ix > myfloor) {      /* clean up after last statement */
	SV* sv = tmps_stack[tmps_ix];
	tmps_stack[tmps_ix--] = Nullsv;
	if (sv) {
#ifdef DEBUGGING
	    SvTEMP_off(sv);
#endif
	    SvREFCNT_dec(sv);		/* note, can modify tmps_ix!!! */
	}
    }
}

static SV *
save_scalar_at(sptr)
SV **sptr;
{
    register SV *sv;
    SV *osv = *sptr;

    sv = *sptr = NEWSV(0,0);
    if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
	sv_upgrade(sv, SvTYPE(osv));
	if (SvGMAGICAL(osv)) {
	    MAGIC* mg;
	    bool oldtainted = tainted;
	    mg_get(osv);
	    if (tainting && tainted && (mg = mg_find(osv, 't'))) {
		SAVESPTR(mg->mg_obj);
		mg->mg_obj = osv;
	    }
	    SvFLAGS(osv) |= (SvFLAGS(osv) &
		(SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
	    tainted = oldtainted;
	}
	SvMAGIC(sv) = SvMAGIC(osv);
	SvFLAGS(sv) |= SvMAGICAL(osv);
	localizing = 1;
	SvSETMAGIC(sv);
	localizing = 0;
    }
    return sv;
}

SV *
save_scalar(gv)
GV *gv;
{
    SSCHECK(3);
    SSPUSHPTR(gv);
    SSPUSHPTR(GvSV(gv));
    SSPUSHINT(SAVEt_SV);
    return save_scalar_at(&GvSV(gv));
}

SV*
save_svref(sptr)
SV **sptr;
{
    SSCHECK(3);
    SSPUSHPTR(sptr);
    SSPUSHPTR(*sptr);
    SSPUSHINT(SAVEt_SVREF);
    return save_scalar_at(sptr);
}

void
save_gp(gv, empty)
GV *gv;
I32 empty;
{
    SSCHECK(3);
    SSPUSHPTR(SvREFCNT_inc(gv));
    SSPUSHPTR(GvGP(gv));
    SSPUSHINT(SAVEt_GP);

    if (empty) {
	register GP *gp;
	Newz(602, gp, 1, GP);
	GvGP(gv) = gp_ref(gp);
	GvSV(gv) = NEWSV(72,0);
	GvLINE(gv) = curcop->cop_line;
	GvEGV(gv) = gv;
    }
    else {
	gp_ref(GvGP(gv));
	GvINTRO_on(gv);
    }
}

AV *
save_ary(gv)
GV *gv;
{
    SSCHECK(3);
    SSPUSHPTR(gv);
    SSPUSHPTR(GvAVn(gv));
    SSPUSHINT(SAVEt_AV);

    GvAV(gv) = Null(AV*);
    return GvAVn(gv);
}

HV *
save_hash(gv)
GV *gv;
{
    SSCHECK(3);
    SSPUSHPTR(gv);
    SSPUSHPTR(GvHVn(gv));
    SSPUSHINT(SAVEt_HV);

    GvHV(gv) = Null(HV*);
    return GvHVn(gv);
}

void
save_item(item)
register SV *item;
{
    register SV *sv;

    SSCHECK(3);
    SSPUSHPTR(item);		/* remember the pointer */
    sv = NEWSV(0,0);
    sv_setsv(sv,item);
    SSPUSHPTR(sv);		/* remember the value */
    SSPUSHINT(SAVEt_ITEM);
}

void
save_int(intp)
int *intp;
{
    SSCHECK(3);
    SSPUSHINT(*intp);
    SSPUSHPTR(intp);
    SSPUSHINT(SAVEt_INT);
}

void
save_long(longp)
long *longp;
{
    SSCHECK(3);
    SSPUSHLONG(*longp);
    SSPUSHPTR(longp);
    SSPUSHINT(SAVEt_LONG);
}

void
save_I32(intp)
I32 *intp;
{
    SSCHECK(3);
    SSPUSHINT(*intp);
    SSPUSHPTR(intp);
    SSPUSHINT(SAVEt_I32);
}

void
save_I16(intp)
I16 *intp;
{
    SSCHECK(3);
    SSPUSHINT(*intp);
    SSPUSHPTR(intp);
    SSPUSHINT(SAVEt_I16);
}

void
save_iv(ivp)
IV *ivp;
{
    SSCHECK(3);
    SSPUSHIV(*ivp);
    SSPUSHPTR(ivp);
    SSPUSHINT(SAVEt_IV);
}

/* Cannot use save_sptr() to store a char* since the SV** cast will
 * force word-alignment and we'll miss the pointer.
 */
void
save_pptr(pptr)
char **pptr;
{
    SSCHECK(3);
    SSPUSHPTR(*pptr);
    SSPUSHPTR(pptr);
    SSPUSHINT(SAVEt_PPTR);
}

void
save_sptr(sptr)
SV **sptr;
{
    SSCHECK(3);
    SSPUSHPTR(*sptr);
    SSPUSHPTR(sptr);
    SSPUSHINT(SAVEt_SPTR);
}

void
save_nogv(gv)
GV *gv;
{
    SSCHECK(2);
    SSPUSHPTR(gv);
    SSPUSHINT(SAVEt_NSTAB);
}

void
save_hptr(hptr)
HV **hptr;
{
    SSCHECK(3);
    SSPUSHPTR(*hptr);
    SSPUSHPTR(hptr);
    SSPUSHINT(SAVEt_HPTR);
}

void
save_aptr(aptr)
AV **aptr;
{
    SSCHECK(3);
    SSPUSHPTR(*aptr);
    SSPUSHPTR(aptr);
    SSPUSHINT(SAVEt_APTR);
}

void
save_freesv(sv)
SV *sv;
{
    SSCHECK(2);
    SSPUSHPTR(sv);
    SSPUSHINT(SAVEt_FREESV);
}

void
save_freeop(op)
OP *op;
{
    SSCHECK(2);
    SSPUSHPTR(op);
    SSPUSHINT(SAVEt_FREEOP);
}

void
save_freepv(pv)
char *pv;
{
    SSCHECK(2);
    SSPUSHPTR(pv);
    SSPUSHINT(SAVEt_FREEPV);
}

void
save_clearsv(svp)
SV** svp;
{
    SSCHECK(2);
    SSPUSHLONG((long)(svp-curpad));
    SSPUSHINT(SAVEt_CLEARSV);
}

void
save_delete(hv,key,klen)
HV *hv;
char *key;
I32 klen;
{
    SSCHECK(4);
    SSPUSHINT(klen);
    SSPUSHPTR(key);
    SSPUSHPTR(hv);
    SSPUSHINT(SAVEt_DELETE);
}

void
save_list(sarg,maxsarg)
register SV **sarg;
I32 maxsarg;
{
    register SV *sv;
    register I32 i;

    SSCHECK(3 * maxsarg);
    for (i = 1; i <= maxsarg; i++) {
	SSPUSHPTR(sarg[i]);		/* remember the pointer */
	sv = NEWSV(0,0);
	sv_setsv(sv,sarg[i]);
	SSPUSHPTR(sv);			/* remember the value */
	SSPUSHINT(SAVEt_ITEM);
    }
}

void
save_destructor(f,p)
void (*f) _((void*));
void* p;
{
    SSCHECK(3);
    SSPUSHDPTR(f);
    SSPUSHPTR(p);
    SSPUSHINT(SAVEt_DESTRUCTOR);
}

void
leave_scope(base)
I32 base;
{
    register SV *sv;
    register SV *value;
    register GV *gv;
    register AV *av;
    register HV *hv;
    register void* ptr;

    if (base < -1)
	croak("panic: corrupt saved stack index");
    while (savestack_ix > base) {
	switch (SSPOPINT) {
	case SAVEt_ITEM:			/* normal string */
	    value = (SV*)SSPOPPTR;
	    sv = (SV*)SSPOPPTR;
	    sv_replace(sv,value);
	    localizing = 2;
	    SvSETMAGIC(sv);
	    localizing = 0;
	    break;
        case SAVEt_SV:				/* scalar reference */
	    value = (SV*)SSPOPPTR;
	    gv = (GV*)SSPOPPTR;
	    ptr = &GvSV(gv);
	    goto restore_sv;
        case SAVEt_SVREF:			/* scalar reference */
	    value = (SV*)SSPOPPTR;
	    ptr = SSPOPPTR;
	restore_sv:
	    sv = *(SV**)ptr;
	    if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) &&
		SvTYPE(sv) != SVt_PVGV)
	    {
		(void)SvUPGRADE(value, SvTYPE(sv));
		SvMAGIC(value) = SvMAGIC(sv);
		SvFLAGS(value) |= SvMAGICAL(sv);
		SvMAGICAL_off(sv);
		SvMAGIC(sv) = 0;
	    }
	    else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) &&
		     SvTYPE(value) != SVt_PVGV)
	    {
		SvFLAGS(value) |= (SvFLAGS(value) &
				   (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
		SvMAGICAL_off(value);
		SvMAGIC(value) = 0;
	    }
            SvREFCNT_dec(sv);
	    *(SV**)ptr = value;
	    localizing = 2;
	    SvSETMAGIC(value);
	    localizing = 0;
            break;
        case SAVEt_AV:				/* array reference */
	    av = (AV*)SSPOPPTR;
	    gv = (GV*)SSPOPPTR;
            SvREFCNT_dec(GvAV(gv));
            GvAV(gv) = av;
            break;
        case SAVEt_HV:				/* hash reference */
	    hv = (HV*)SSPOPPTR;
	    gv = (GV*)SSPOPPTR;
            SvREFCNT_dec(GvHV(gv));
            GvHV(gv) = hv;
            break;
	case SAVEt_INT:				/* int reference */
	    ptr = SSPOPPTR;
	    *(int*)ptr = (int)SSPOPINT;
	    break;
	case SAVEt_LONG:			/* long reference */
	    ptr = SSPOPPTR;
	    *(long*)ptr = (long)SSPOPLONG;
	    break;
	case SAVEt_I32:				/* I32 reference */
	    ptr = SSPOPPTR;
	    *(I32*)ptr = (I32)SSPOPINT;
	    break;
	case SAVEt_I16:				/* I16 reference */
	    ptr = SSPOPPTR;
	    *(I16*)ptr = (I16)SSPOPINT;
	    break;
	case SAVEt_IV:				/* IV reference */
	    ptr = SSPOPPTR;
	    *(IV*)ptr = (IV)SSPOPIV;
	    break;
	case SAVEt_SPTR:			/* SV* reference */
	    ptr = SSPOPPTR;
	    *(SV**)ptr = (SV*)SSPOPPTR;
	    break;
	case SAVEt_PPTR:			/* char* reference */
	    ptr = SSPOPPTR;
	    *(char**)ptr = (char*)SSPOPPTR;
	    break;
	case SAVEt_HPTR:			/* HV* reference */
	    ptr = SSPOPPTR;
	    *(HV**)ptr = (HV*)SSPOPPTR;
	    break;
	case SAVEt_APTR:			/* AV* reference */
	    ptr = SSPOPPTR;
	    *(AV**)ptr = (AV*)SSPOPPTR;
	    break;
	case SAVEt_NSTAB:
	    gv = (GV*)SSPOPPTR;
	    (void)sv_clear((SV*)gv);
	    break;
        case SAVEt_GP:				/* scalar reference */
	    ptr = SSPOPPTR;
	    gv = (GV*)SSPOPPTR;
            gp_free(gv);
            GvGP(gv) = (GP*)ptr;
	    SvREFCNT_dec(gv);
            break;
	case SAVEt_FREESV:
	    ptr = SSPOPPTR;
	    SvREFCNT_dec((SV*)ptr);
	    break;
	case SAVEt_FREEOP:
	    ptr = SSPOPPTR;
	    if (comppad)
		curpad = AvARRAY(comppad);
	    op_free((OP*)ptr);
	    break;
	case SAVEt_FREEPV:
	    ptr = SSPOPPTR;
	    Safefree((char*)ptr);
	    break;
	case SAVEt_CLEARSV:
	    ptr = (void*)&curpad[SSPOPLONG];
	    sv = *(SV**)ptr;
	    if (SvREFCNT(sv) <= 1) { /* Can clear pad variable in place. */
		if (SvTHINKFIRST(sv)) {
		    if (SvREADONLY(sv))
			croak("panic: leave_scope clearsv");
		    if (SvROK(sv))
			sv_unref(sv);
		}
		if (SvMAGICAL(sv))
		    mg_free(sv);

		switch (SvTYPE(sv)) {
		case SVt_NULL:
		    break;
		case SVt_PVAV:
		    av_clear((AV*)sv);
		    break;
		case SVt_PVHV:
		    hv_clear((HV*)sv);
		    break;
		case SVt_PVCV:
		    croak("panic: leave_scope pad code");
		case SVt_RV:
		case SVt_IV:
		case SVt_NV:
		    (void)SvOK_off(sv);
		    break;
		default:
		    (void)SvOK_off(sv);
		    (void)SvOOK_off(sv);
		    break;
		}
	    }
	    else {	/* Someone has a claim on this, so abandon it. */
		U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY|SVs_PADMY|SVs_PADTMP);
		SvREFCNT_dec(sv);	/* Cast current value to the winds. */
		switch (SvTYPE(sv)) {	/* Console ourselves with a new value */
		case SVt_PVAV:	*(SV**)ptr = (SV*)newAV();	break;
		case SVt_PVHV:	*(SV**)ptr = (SV*)newHV();	break;
		default:	*(SV**)ptr = NEWSV(0,0);	break;
		}
		SvFLAGS(*(SV**)ptr) |= padflags; /* preserve pad nature */
	    }
	    break;
	case SAVEt_DELETE:
	    ptr = SSPOPPTR;
	    hv = (HV*)ptr;
	    ptr = SSPOPPTR;
	    (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
	    Safefree(ptr);
	    break;
	case SAVEt_DESTRUCTOR:
	    ptr = SSPOPPTR;
	    (*SSPOPDPTR)(ptr);
	    break;
	case SAVEt_REGCONTEXT:
	    {
		I32 delta = SSPOPINT;
		savestack_ix -= delta;	/* regexp must have croaked */
	    }
	    break;
	case SAVEt_STACK_POS:		/* Position on Perl stack */
	    {
		I32 delta = SSPOPINT;
		stack_sp = stack_base + delta;
	    }
	    break;
	default:
	    croak("panic: leave_scope inconsistency");
	}
    }
}

#ifdef DEBUGGING

void
cx_dump(cx)
CONTEXT* cx;
{
    PerlIO_printf(Perl_debug_log, "CX %d = %s\n", cx - cxstack, block_type[cx->cx_type]);
    if (cx->cx_type != CXt_SUBST) {
	PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
	PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop);
	PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
	PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
	PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp);
	PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm);
	PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
    }
    switch (cx->cx_type) {
    case CXt_NULL:
    case CXt_BLOCK:
	break;
    case CXt_SUB:
	PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n",
		(long)cx->blk_sub.cv);
	PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n",
		(long)cx->blk_sub.gv);
	PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n",
		(long)cx->blk_sub.dfoutgv);
	PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
		(long)cx->blk_sub.olddepth);
	PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
		(int)cx->blk_sub.hasargs);
	break;
    case CXt_EVAL:
	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
		(long)cx->blk_eval.old_in_eval);
	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
		op_name[cx->blk_eval.old_op_type],
		op_desc[cx->blk_eval.old_op_type]);
	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
		cx->blk_eval.old_name);
	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n",
		(long)cx->blk_eval.old_eval_root);
	break;

    case CXt_LOOP:
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
		cx->blk_loop.label);
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
		(long)cx->blk_loop.resetsp);
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%lx\n",
		(long)cx->blk_loop.redo_op);
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n",
		(long)cx->blk_loop.next_op);
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n",
		(long)cx->blk_loop.last_op);
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
		(long)cx->blk_loop.iterix);
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n",
		(long)cx->blk_loop.iterary);
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n",
		(long)cx->blk_loop.itervar);
	if (cx->blk_loop.itervar)
	    PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n",
		(long)cx->blk_loop.itersave);
	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n",
		(long)cx->blk_loop.iterlval);
	break;

    case CXt_SUBST:
	PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
		(long)cx->sb_iters);
	PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
		(long)cx->sb_maxiters);
	PerlIO_printf(Perl_debug_log, "SB_SAFEBASE = %ld\n",
		(long)cx->sb_safebase);
	PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
		(long)cx->sb_once);
	PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
		cx->sb_orig);
	PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n",
		(long)cx->sb_dstr);
	PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n",
		(long)cx->sb_targ);
	PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n",
		(long)cx->sb_s);
	PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n",
		(long)cx->sb_m);
	PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n",
		(long)cx->sb_strend);
	PerlIO_printf(Perl_debug_log, "SB_SUBBASE = 0x%lx\n",
		(long)cx->sb_subbase);
	break;
    }
}
#endif
Commit	Line	Data
a0d0e21e	1	/* scope.c
79072805	2	*
9607fc9c	3	* Copyright (c) 1991-1997, Larry Wall
79072805 LW	4	*
	5	* You may distribute under the terms of either the GNU General Public
	6	* License or the Artistic License, as specified in the README file.
	7	*
a0d0e21e LW	8	*/
	9
	10	/*
	11	* "For the fashion of Minas Tirith was such that it was built on seven
	12	* levels..."
79072805 LW	13	*/
	14
	15	#include "EXTERN.h"
	16	#include "perl.h"
	17
a0d0e21e LW	18	SV**
	19	stack_grow(sp, p, n)
	20	SV** sp;
	21	SV** p;
	22	int n;
	23	{
	24	stack_sp = sp;
1f96a9ed	25	av_extend(curstack, (p - stack_base) + (n) + 128);
a0d0e21e LW	26	return stack_sp;
	27	}
	28
79072805 LW	29	I32
	30	cxinc()
	31	{
	32	cxstack_max = cxstack_max * 3 / 2;
a38d6535	33	Renew(cxstack, cxstack_max + 1, CONTEXT); /* XXX should fix CXINC macro */
79072805 LW	34	return cxstack_ix + 1;
	35	}
	36
	37	void
	38	push_return(retop)
	39	OP *retop;
	40	{
	41	if (retstack_ix == retstack_max) {
	42	retstack_max = retstack_max * 3 / 2;
	43	Renew(retstack, retstack_max, OP*);
	44	}
	45	retstack[retstack_ix++] = retop;
	46	}
	47
	48	OP *
	49	pop_return()
	50	{
	51	if (retstack_ix > 0)
	52	return retstack[--retstack_ix];
	53	else
	54	return Nullop;
	55	}
	56
	57	void
	58	push_scope()
	59	{
	60	if (scopestack_ix == scopestack_max) {
	61	scopestack_max = scopestack_max * 3 / 2;
	62	Renew(scopestack, scopestack_max, I32);
	63	}
	64	scopestack[scopestack_ix++] = savestack_ix;
	65
	66	}
	67
	68	void
	69	pop_scope()
	70	{
	71	I32 oldsave = scopestack[--scopestack_ix];
8990e307	72	LEAVE_SCOPE(oldsave);
79072805 LW	73	}
	74
	75	void
a0d0e21e LW	76	markstack_grow()
	77	{
	78	I32 oldmax = markstack_max - markstack;
	79	I32 newmax = oldmax * 3 / 2;
	80
	81	Renew(markstack, newmax, I32);
	82	markstack_ptr = markstack + oldmax;
	83	markstack_max = markstack + newmax;
	84	}
	85
	86	void
79072805 LW	87	savestack_grow()
	88	{
	89	savestack_max = savestack_max * 3 / 2;
	90	Renew(savestack, savestack_max, ANY);
	91	}
	92
	93	void
	94	free_tmps()
	95	{
	96	/* XXX should tmps_floor live in cxstack? */
	97	I32 myfloor = tmps_floor;
	98	while (tmps_ix > myfloor) { /* clean up after last statement */
	99	SV* sv = tmps_stack[tmps_ix];
	100	tmps_stack[tmps_ix--] = Nullsv;
463ee0b2 LW	101	if (sv) {
	102	#ifdef DEBUGGING
	103	SvTEMP_off(sv);
	104	#endif
8990e307	105	SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
463ee0b2	106	}
79072805 LW	107	}
	108	}
	109
7a4c00b4	110	static SV *
	111	save_scalar_at(sptr)
	112	SV **sptr;
79072805 LW	113	{
79072805 LW	114	register SV *sv;
7a4c00b4	115	SV osv = sptr;
79072805	116
7a4c00b4	117	sv = *sptr = NEWSV(0,0);
a0d0e21e	118	if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
79072805	119	sv_upgrade(sv, SvTYPE(osv));
a0d0e21e	120	if (SvGMAGICAL(osv)) {
748a9306 LW	121	MAGIC* mg;
748a9306 LW	122	bool oldtainted = tainted;
a0d0e21e	123	mg_get(osv);
748a9306 LW	124	if (tainting && tainted && (mg = mg_find(osv, 't'))) {
	125	SAVESPTR(mg->mg_obj);
	126	mg->mg_obj = osv;
	127	}
a0d0e21e LW	128	SvFLAGS(osv) \|= (SvFLAGS(osv) &
a0d0e21e LW	129	(SVp_IOK\|SVp_NOK\|SVp_POK)) >> PRIVSHIFT;
748a9306	130	tainted = oldtainted;
a0d0e21e	131	}
79072805	132	SvMAGIC(sv) = SvMAGIC(osv);
a0d0e21e	133	SvFLAGS(sv) \|= SvMAGICAL(osv);
748a9306	134	localizing = 1;
79072805	135	SvSETMAGIC(sv);
748a9306	136	localizing = 0;
79072805 LW	137	}
	138	return sv;
	139	}
	140
7a4c00b4	141	SV *
	142	save_scalar(gv)
	143	GV *gv;
	144	{
	145	SSCHECK(3);
	146	SSPUSHPTR(gv);
	147	SSPUSHPTR(GvSV(gv));
	148	SSPUSHINT(SAVEt_SV);
	149	return save_scalar_at(&GvSV(gv));
	150	}
	151
	152	SV*
	153	save_svref(sptr)
	154	SV **sptr;
	155	{
	156	SSCHECK(3);
	157	SSPUSHPTR(sptr);
	158	SSPUSHPTR(*sptr);
	159	SSPUSHINT(SAVEt_SVREF);
	160	return save_scalar_at(sptr);
	161	}
	162
79072805	163	void
5f05dabc	164	save_gp(gv, empty)
79072805	165	GV *gv;
5f05dabc	166	I32 empty;
79072805	167	{
79072805	168	SSCHECK(3);
4633a7c4	169	SSPUSHPTR(SvREFCNT_inc(gv));
5f05dabc	170	SSPUSHPTR(GvGP(gv));
79072805 LW	171	SSPUSHINT(SAVEt_GP);
79072805 LW	172
5f05dabc	173	if (empty) {
	174	register GP *gp;
	175	Newz(602, gp, 1, GP);
44a8e56a	176	GvGP(gv) = gp_ref(gp);
5f05dabc	177	GvSV(gv) = NEWSV(72,0);
	178	GvLINE(gv) = curcop->cop_line;
	179	GvEGV(gv) = gv;
	180	}
	181	else {
44a8e56a	182	gp_ref(GvGP(gv));
5f05dabc	183	GvINTRO_on(gv);
5f05dabc	184	}
79072805	185	}
79072805	186
79072805 LW	187	AV *
	188	save_ary(gv)
	189	GV *gv;
	190	{
	191	SSCHECK(3);
	192	SSPUSHPTR(gv);
	193	SSPUSHPTR(GvAVn(gv));
	194	SSPUSHINT(SAVEt_AV);
	195
	196	GvAV(gv) = Null(AV*);
	197	return GvAVn(gv);
	198	}
	199
	200	HV *
	201	save_hash(gv)
	202	GV *gv;
	203	{
	204	SSCHECK(3);
	205	SSPUSHPTR(gv);
	206	SSPUSHPTR(GvHVn(gv));
	207	SSPUSHINT(SAVEt_HV);
	208
	209	GvHV(gv) = Null(HV*);
	210	return GvHVn(gv);
	211	}
	212
	213	void
	214	save_item(item)
	215	register SV *item;
	216	{
	217	register SV *sv;
	218
	219	SSCHECK(3);
	220	SSPUSHPTR(item); /* remember the pointer */
	221	sv = NEWSV(0,0);
	222	sv_setsv(sv,item);
	223	SSPUSHPTR(sv); /* remember the value */
	224	SSPUSHINT(SAVEt_ITEM);
	225	}
	226
	227	void
	228	save_int(intp)
	229	int *intp;
	230	{
	231	SSCHECK(3);
	232	SSPUSHINT(*intp);
	233	SSPUSHPTR(intp);
	234	SSPUSHINT(SAVEt_INT);
	235	}
	236
	237	void
85e6fe83 LW	238	save_long(longp)
	239	long *longp;
	240	{
	241	SSCHECK(3);
	242	SSPUSHLONG(*longp);
	243	SSPUSHPTR(longp);
	244	SSPUSHINT(SAVEt_LONG);
	245	}
	246
	247	void
79072805 LW	248	save_I32(intp)
	249	I32 *intp;
	250	{
	251	SSCHECK(3);
	252	SSPUSHINT(*intp);
	253	SSPUSHPTR(intp);
	254	SSPUSHINT(SAVEt_I32);
	255	}
	256
a0d0e21e	257	void
55497cff	258	save_I16(intp)
	259	I16 *intp;
	260	{
	261	SSCHECK(3);
	262	SSPUSHINT(*intp);
	263	SSPUSHPTR(intp);
	264	SSPUSHINT(SAVEt_I16);
	265	}
	266
	267	void
a0d0e21e LW	268	save_iv(ivp)
	269	IV *ivp;
	270	{
	271	SSCHECK(3);
4aa0a1f7	272	SSPUSHIV(*ivp);
a0d0e21e LW	273	SSPUSHPTR(ivp);
	274	SSPUSHINT(SAVEt_IV);
	275	}
	276
85e6fe83 LW	277	/* Cannot use save_sptr() to store a char* since the SV** cast will
	278	* force word-alignment and we'll miss the pointer.
	279	*/
	280	void
	281	save_pptr(pptr)
	282	char **pptr;
	283	{
	284	SSCHECK(3);
	285	SSPUSHPTR(*pptr);
	286	SSPUSHPTR(pptr);
	287	SSPUSHINT(SAVEt_PPTR);
	288	}
	289
79072805 LW	290	void
	291	save_sptr(sptr)
	292	SV **sptr;
	293	{
	294	SSCHECK(3);
	295	SSPUSHPTR(*sptr);
	296	SSPUSHPTR(sptr);
	297	SSPUSHINT(SAVEt_SPTR);
	298	}
	299
	300	void
	301	save_nogv(gv)
	302	GV *gv;
	303	{
	304	SSCHECK(2);
	305	SSPUSHPTR(gv);
	306	SSPUSHINT(SAVEt_NSTAB);
	307	}
	308
	309	void
	310	save_hptr(hptr)
	311	HV **hptr;
	312	{
	313	SSCHECK(3);
85e6fe83	314	SSPUSHPTR(*hptr);
79072805 LW	315	SSPUSHPTR(hptr);
	316	SSPUSHINT(SAVEt_HPTR);
	317	}
	318
	319	void
	320	save_aptr(aptr)
	321	AV **aptr;
	322	{
	323	SSCHECK(3);
85e6fe83	324	SSPUSHPTR(*aptr);
79072805 LW	325	SSPUSHPTR(aptr);
	326	SSPUSHINT(SAVEt_APTR);
	327	}
	328
	329	void
8990e307 LW	330	save_freesv(sv)
	331	SV *sv;
	332	{
	333	SSCHECK(2);
	334	SSPUSHPTR(sv);
	335	SSPUSHINT(SAVEt_FREESV);
	336	}
	337
	338	void
	339	save_freeop(op)
	340	OP *op;
	341	{
	342	SSCHECK(2);
	343	SSPUSHPTR(op);
	344	SSPUSHINT(SAVEt_FREEOP);
	345	}
	346
	347	void
	348	save_freepv(pv)
	349	char *pv;
	350	{
	351	SSCHECK(2);
	352	SSPUSHPTR(pv);
	353	SSPUSHINT(SAVEt_FREEPV);
	354	}
	355
	356	void
	357	save_clearsv(svp)
	358	SV** svp;
	359	{
	360	SSCHECK(2);
4aa0a1f7	361	SSPUSHLONG((long)(svp-curpad));
8990e307 LW	362	SSPUSHINT(SAVEt_CLEARSV);
	363	}
	364
	365	void
	366	save_delete(hv,key,klen)
	367	HV *hv;
	368	char *key;
	369	I32 klen;
	370	{
	371	SSCHECK(4);
	372	SSPUSHINT(klen);
	373	SSPUSHPTR(key);
	374	SSPUSHPTR(hv);
	375	SSPUSHINT(SAVEt_DELETE);
	376	}
	377
	378	void
79072805 LW	379	save_list(sarg,maxsarg)
	380	register SV **sarg;
	381	I32 maxsarg;
	382	{
	383	register SV *sv;
	384	register I32 i;
	385
	386	SSCHECK(3 * maxsarg);
	387	for (i = 1; i <= maxsarg; i++) {
	388	SSPUSHPTR(sarg[i]); /* remember the pointer */
	389	sv = NEWSV(0,0);
	390	sv_setsv(sv,sarg[i]);
	391	SSPUSHPTR(sv); /* remember the value */
	392	SSPUSHINT(SAVEt_ITEM);
	393	}
	394	}
	395
	396	void
a0d0e21e LW	397	save_destructor(f,p)
	398	void (f) _((void));
	399	void* p;
	400	{
	401	SSCHECK(3);
	402	SSPUSHDPTR(f);
	403	SSPUSHPTR(p);
	404	SSPUSHINT(SAVEt_DESTRUCTOR);
	405	}
	406
	407	void
79072805 LW	408	leave_scope(base)
	409	I32 base;
	410	{
	411	register SV *sv;
	412	register SV *value;
	413	register GV *gv;
	414	register AV *av;
	415	register HV *hv;
	416	register void* ptr;
	417
	418	if (base < -1)
463ee0b2	419	croak("panic: corrupt saved stack index");
79072805 LW	420	while (savestack_ix > base) {
	421	switch (SSPOPINT) {
	422	case SAVEt_ITEM: /* normal string */
	423	value = (SV*)SSPOPPTR;
	424	sv = (SV*)SSPOPPTR;
	425	sv_replace(sv,value);
748a9306	426	localizing = 2;
79072805	427	SvSETMAGIC(sv);
748a9306	428	localizing = 0;
79072805 LW	429	break;
	430	case SAVEt_SV: /* scalar reference */
	431	value = (SV*)SSPOPPTR;
	432	gv = (GV*)SSPOPPTR;
7a4c00b4	433	ptr = &GvSV(gv);
7a4c00b4	434	goto restore_sv;
79072805	435	case SAVEt_SVREF: /* scalar reference */
7a4c00b4	436	value = (SV*)SSPOPPTR;
79072805	437	ptr = SSPOPPTR;
7a4c00b4	438	restore_sv:
79072805	439	sv = (SV*)ptr;
748a9306 LW	440	if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) &&
	441	SvTYPE(sv) != SVt_PVGV)
	442	{
a0d0e21e LW	443	(void)SvUPGRADE(value, SvTYPE(sv));
	444	SvMAGIC(value) = SvMAGIC(sv);
	445	SvFLAGS(value) \|= SvMAGICAL(sv);
	446	SvMAGICAL_off(sv);
79072805	447	SvMAGIC(sv) = 0;
a0d0e21e	448	}
7a4c00b4	449	else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) &&
	450	SvTYPE(value) != SVt_PVGV)
	451	{
	452	SvFLAGS(value) \|= (SvFLAGS(value) &
	453	(SVp_IOK\|SVp_NOK\|SVp_POK)) >> PRIVSHIFT;
	454	SvMAGICAL_off(value);
	455	SvMAGIC(value) = 0;
	456	}
8990e307	457	SvREFCNT_dec(sv);
a0d0e21e	458	(SV*)ptr = value;
748a9306	459	localizing = 2;
a0d0e21e	460	SvSETMAGIC(value);
748a9306	461	localizing = 0;
79072805 LW	462	break;
	463	case SAVEt_AV: /* array reference */
	464	av = (AV*)SSPOPPTR;
	465	gv = (GV*)SSPOPPTR;
8990e307	466	SvREFCNT_dec(GvAV(gv));
79072805 LW	467	GvAV(gv) = av;
	468	break;
	469	case SAVEt_HV: /* hash reference */
	470	hv = (HV*)SSPOPPTR;
	471	gv = (GV*)SSPOPPTR;
8990e307	472	SvREFCNT_dec(GvHV(gv));
79072805 LW	473	GvHV(gv) = hv;
	474	break;
	475	case SAVEt_INT: /* int reference */
	476	ptr = SSPOPPTR;
	477	(int)ptr = (int)SSPOPINT;
	478	break;
85e6fe83 LW	479	case SAVEt_LONG: /* long reference */
	480	ptr = SSPOPPTR;
	481	(long)ptr = (long)SSPOPLONG;
	482	break;
79072805 LW	483	case SAVEt_I32: /* I32 reference */
	484	ptr = SSPOPPTR;
	485	(I32)ptr = (I32)SSPOPINT;
	486	break;
55497cff	487	case SAVEt_I16: /* I16 reference */
	488	ptr = SSPOPPTR;
	489	(I16)ptr = (I16)SSPOPINT;
	490	break;
a0d0e21e LW	491	case SAVEt_IV: /* IV reference */
	492	ptr = SSPOPPTR;
	493	(IV)ptr = (IV)SSPOPIV;
	494	break;
79072805 LW	495	case SAVEt_SPTR: /* SV* reference */
	496	ptr = SSPOPPTR;
	497	(SV)ptr = (SV)SSPOPPTR;
	498	break;
85e6fe83 LW	499	case SAVEt_PPTR: /* char* reference */
	500	ptr = SSPOPPTR;
	501	(char)ptr = (char)SSPOPPTR;
	502	break;
79072805 LW	503	case SAVEt_HPTR: /* HV* reference */
	504	ptr = SSPOPPTR;
	505	(HV)ptr = (HV)SSPOPPTR;
	506	break;
	507	case SAVEt_APTR: /* AV* reference */
	508	ptr = SSPOPPTR;
	509	(AV)ptr = (AV)SSPOPPTR;
	510	break;
	511	case SAVEt_NSTAB:
	512	gv = (GV*)SSPOPPTR;
1f96a9ed	513	(void)sv_clear((SV*)gv);
79072805 LW	514	break;
	515	case SAVEt_GP: /* scalar reference */
	516	ptr = SSPOPPTR;
	517	gv = (GV*)SSPOPPTR;
	518	gp_free(gv);
	519	GvGP(gv) = (GP*)ptr;
4633a7c4	520	SvREFCNT_dec(gv);
79072805	521	break;
8990e307 LW	522	case SAVEt_FREESV:
	523	ptr = SSPOPPTR;
	524	SvREFCNT_dec((SV*)ptr);
	525	break;
	526	case SAVEt_FREEOP:
	527	ptr = SSPOPPTR;
46fc3d4c	528	if (comppad)
46fc3d4c	529	curpad = AvARRAY(comppad);
8990e307 LW	530	op_free((OP*)ptr);
	531	break;
	532	case SAVEt_FREEPV:
	533	ptr = SSPOPPTR;
	534	Safefree((char*)ptr);
	535	break;
	536	case SAVEt_CLEARSV:
4aa0a1f7	537	ptr = (void*)&curpad[SSPOPLONG];
8990e307	538	sv = (SV*)ptr;
a0d0e21e	539	if (SvREFCNT(sv) <= 1) { /* Can clear pad variable in place. */
8990e307 LW	540	if (SvTHINKFIRST(sv)) {
	541	if (SvREADONLY(sv))
	542	croak("panic: leave_scope clearsv");
	543	if (SvROK(sv))
	544	sv_unref(sv);
	545	}
a0d0e21e LW	546	if (SvMAGICAL(sv))
a0d0e21e LW	547	mg_free(sv);
8990e307 LW	548
	549	switch (SvTYPE(sv)) {
	550	case SVt_NULL:
	551	break;
	552	case SVt_PVAV:
44a8e56a	553	av_clear((AV*)sv);
8990e307 LW	554	break;
8990e307 LW	555	case SVt_PVHV:
44a8e56a	556	hv_clear((HV*)sv);
8990e307 LW	557	break;
8990e307 LW	558	case SVt_PVCV:
5377b701 CS	559	croak("panic: leave_scope pad code");
	560	case SVt_RV:
	561	case SVt_IV:
	562	case SVt_NV:
	563	(void)SvOK_off(sv);
8990e307 LW	564	break;
8990e307 LW	565	default:
a0d0e21e	566	(void)SvOK_off(sv);
5377b701	567	(void)SvOOK_off(sv);
8990e307 LW	568	break;
	569	}
	570	}
	571	else { /* Someone has a claim on this, so abandon it. */
4aa0a1f7	572	U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY\|SVs_PADMY\|SVs_PADTMP);
8990e307 LW	573	SvREFCNT_dec(sv); /* Cast current value to the winds. */
	574	switch (SvTYPE(sv)) { /* Console ourselves with a new value */
	575	case SVt_PVAV: (SV)ptr = (SV)newAV(); break;
	576	case SVt_PVHV: (SV)ptr = (SV)newHV(); break;
	577	default: (SV*)ptr = NEWSV(0,0); break;
	578	}
4aa0a1f7	579	SvFLAGS((SV)ptr) \|= padflags; / preserve pad nature */
8990e307 LW	580	}
	581	break;
	582	case SAVEt_DELETE:
	583	ptr = SSPOPPTR;
	584	hv = (HV*)ptr;
	585	ptr = SSPOPPTR;
748a9306	586	(void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
adbc6bb1	587	Safefree(ptr);
8990e307	588	break;
a0d0e21e LW	589	case SAVEt_DESTRUCTOR:
	590	ptr = SSPOPPTR;
	591	(*SSPOPDPTR)(ptr);
	592	break;
	593	case SAVEt_REGCONTEXT:
8e07c86e AD	594	{
	595	I32 delta = SSPOPINT;
	596	savestack_ix -= delta; /* regexp must have croaked */
	597	}
a0d0e21e	598	break;
55497cff	599	case SAVEt_STACK_POS: /* Position on Perl stack */
	600	{
	601	I32 delta = SSPOPINT;
	602	stack_sp = stack_base + delta;
	603	}
	604	break;
79072805	605	default:
463ee0b2	606	croak("panic: leave_scope inconsistency");
79072805 LW	607	}
	608	}
	609	}
8990e307 LW	610
8990e307 LW	611	#ifdef DEBUGGING
1f96a9ed	612
8990e307 LW	613	void
	614	cx_dump(cx)
	615	CONTEXT* cx;
	616	{
760ac839	617	PerlIO_printf(Perl_debug_log, "CX %d = %s\n", cx - cxstack, block_type[cx->cx_type]);
8990e307	618	if (cx->cx_type != CXt_SUBST) {
760ac839 LW	619	PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
	620	PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop);
	621	PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
	622	PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
	623	PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp);
	624	PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm);
	625	PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
8990e307 LW	626	}
	627	switch (cx->cx_type) {
	628	case CXt_NULL:
	629	case CXt_BLOCK:
	630	break;
	631	case CXt_SUB:
760ac839	632	PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n",
8990e307	633	(long)cx->blk_sub.cv);
760ac839	634	PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n",
8990e307	635	(long)cx->blk_sub.gv);
760ac839	636	PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n",
8990e307	637	(long)cx->blk_sub.dfoutgv);
760ac839	638	PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
8990e307	639	(long)cx->blk_sub.olddepth);
760ac839	640	PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
8990e307 LW	641	(int)cx->blk_sub.hasargs);
	642	break;
	643	case CXt_EVAL:
760ac839	644	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
8990e307	645	(long)cx->blk_eval.old_in_eval);
760ac839	646	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
c07a80fd	647	op_name[cx->blk_eval.old_op_type],
c07a80fd	648	op_desc[cx->blk_eval.old_op_type]);
760ac839	649	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
8990e307	650	cx->blk_eval.old_name);
760ac839	651	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n",
8990e307 LW	652	(long)cx->blk_eval.old_eval_root);
	653	break;
	654
	655	case CXt_LOOP:
760ac839	656	PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
8990e307	657	cx->blk_loop.label);
760ac839	658	PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
8990e307	659	(long)cx->blk_loop.resetsp);
760ac839	660	PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%lx\n",
8990e307	661	(long)cx->blk_loop.redo_op);
760ac839	662	PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n",
8990e307	663	(long)cx->blk_loop.next_op);
760ac839	664	PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n",
8990e307	665	(long)cx->blk_loop.last_op);
760ac839	666	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
8990e307	667	(long)cx->blk_loop.iterix);
760ac839	668	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n",
8990e307	669	(long)cx->blk_loop.iterary);
760ac839	670	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n",
8990e307 LW	671	(long)cx->blk_loop.itervar);
8990e307 LW	672	if (cx->blk_loop.itervar)
760ac839	673	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n",
8990e307	674	(long)cx->blk_loop.itersave);
7a4c00b4	675	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n",
7a4c00b4	676	(long)cx->blk_loop.iterlval);
8990e307 LW	677	break;
	678
	679	case CXt_SUBST:
760ac839	680	PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
8990e307	681	(long)cx->sb_iters);
760ac839	682	PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
8990e307	683	(long)cx->sb_maxiters);
760ac839	684	PerlIO_printf(Perl_debug_log, "SB_SAFEBASE = %ld\n",
8990e307	685	(long)cx->sb_safebase);
760ac839	686	PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
8990e307	687	(long)cx->sb_once);
760ac839	688	PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
8990e307	689	cx->sb_orig);
760ac839	690	PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n",
8990e307	691	(long)cx->sb_dstr);
760ac839	692	PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n",
8990e307	693	(long)cx->sb_targ);
760ac839	694	PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n",
8990e307	695	(long)cx->sb_s);
760ac839	696	PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n",
8990e307	697	(long)cx->sb_m);
760ac839	698	PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n",
8990e307	699	(long)cx->sb_strend);
760ac839	700	PerlIO_printf(Perl_debug_log, "SB_SUBBASE = 0x%lx\n",
8990e307 LW	701	(long)cx->sb_subbase);
	702	break;
	703	}
	704	}
	705	#endif