[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;
{
    dTHR;
    stack_sp = sp;
    av_extend(curstack, (p - stack_base) + (n) + 128);
    return stack_sp;
}

I32
cxinc()
{
    dTHR;
    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;
{
    dTHR;
    if (retstack_ix == retstack_max) {
	retstack_max = retstack_max * 3 / 2;
	Renew(retstack, retstack_max, OP*);
    }
    retstack[retstack_ix++] = retop;
}

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

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

}

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

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

void
free_tmps()
{
    dTHR;
    /* 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;
{
    dTHR;
    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;
{
    dTHR;
    SSCHECK(3);
    SSPUSHPTR(gv);
    SSPUSHPTR(GvSV(gv));
    SSPUSHINT(SAVEt_SV);
    return save_scalar_at(&GvSV(gv));
}

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

void
save_gp(gv, empty)
GV *gv;
I32 empty;
{
    dTHR;
    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;
{
    dTHR;
    SSCHECK(3);
    SSPUSHPTR(gv);
    SSPUSHPTR(GvAVn(gv));
    SSPUSHINT(SAVEt_AV);

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

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

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

void
save_item(item)
register SV *item;
{
    dTHR;
    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;
{
    dTHR;
    SSCHECK(3);
    SSPUSHINT(*intp);
    SSPUSHPTR(intp);
    SSPUSHINT(SAVEt_INT);
}

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

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

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

void
save_iv(ivp)
IV *ivp;
{
    dTHR;
    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;
{
    dTHR;
    SSCHECK(3);
    SSPUSHPTR(*pptr);
    SSPUSHPTR(pptr);
    SSPUSHINT(SAVEt_PPTR);
}

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

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

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

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

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

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

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

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

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

void
save_list(sarg,maxsarg)
register SV **sarg;
I32 maxsarg;
{
    dTHR;
    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;
{
    dTHR;
    SSCHECK(3);
    SSPUSHDPTR(f);
    SSPUSHPTR(p);
    SSPUSHINT(SAVEt_DESTRUCTOR);
}

void
leave_scope(base)
I32 base;
{
    dTHR;
    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;
{
    dTHR;
    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_RXRES = 0x%lx\n",
		(long)cx->sb_rxres);
	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	{
11343788	24	dTHR;
a0d0e21e	25	stack_sp = sp;
1f96a9ed	26	av_extend(curstack, (p - stack_base) + (n) + 128);
a0d0e21e LW	27	return stack_sp;
	28	}
	29
79072805 LW	30	I32
	31	cxinc()
	32	{
11343788	33	dTHR;
79072805	34	cxstack_max = cxstack_max * 3 / 2;
a38d6535	35	Renew(cxstack, cxstack_max + 1, CONTEXT); /* XXX should fix CXINC macro */
79072805 LW	36	return cxstack_ix + 1;
	37	}
	38
	39	void
	40	push_return(retop)
	41	OP *retop;
	42	{
11343788	43	dTHR;
79072805 LW	44	if (retstack_ix == retstack_max) {
	45	retstack_max = retstack_max * 3 / 2;
	46	Renew(retstack, retstack_max, OP*);
	47	}
	48	retstack[retstack_ix++] = retop;
	49	}
	50
	51	OP *
	52	pop_return()
	53	{
11343788	54	dTHR;
79072805 LW	55	if (retstack_ix > 0)
	56	return retstack[--retstack_ix];
	57	else
	58	return Nullop;
	59	}
	60
	61	void
	62	push_scope()
	63	{
11343788	64	dTHR;
79072805 LW	65	if (scopestack_ix == scopestack_max) {
	66	scopestack_max = scopestack_max * 3 / 2;
	67	Renew(scopestack, scopestack_max, I32);
	68	}
	69	scopestack[scopestack_ix++] = savestack_ix;
	70
	71	}
	72
	73	void
	74	pop_scope()
	75	{
11343788	76	dTHR;
79072805	77	I32 oldsave = scopestack[--scopestack_ix];
8990e307	78	LEAVE_SCOPE(oldsave);
79072805 LW	79	}
	80
	81	void
a0d0e21e LW	82	markstack_grow()
a0d0e21e LW	83	{
11343788	84	dTHR;
a0d0e21e LW	85	I32 oldmax = markstack_max - markstack;
	86	I32 newmax = oldmax * 3 / 2;
	87
	88	Renew(markstack, newmax, I32);
	89	markstack_ptr = markstack + oldmax;
	90	markstack_max = markstack + newmax;
	91	}
	92
	93	void
79072805 LW	94	savestack_grow()
79072805 LW	95	{
11343788	96	dTHR;
79072805 LW	97	savestack_max = savestack_max * 3 / 2;
	98	Renew(savestack, savestack_max, ANY);
	99	}
	100
	101	void
	102	free_tmps()
	103	{
11343788	104	dTHR;
79072805 LW	105	/* XXX should tmps_floor live in cxstack? */
	106	I32 myfloor = tmps_floor;
	107	while (tmps_ix > myfloor) { /* clean up after last statement */
	108	SV* sv = tmps_stack[tmps_ix];
	109	tmps_stack[tmps_ix--] = Nullsv;
463ee0b2 LW	110	if (sv) {
	111	#ifdef DEBUGGING
	112	SvTEMP_off(sv);
	113	#endif
8990e307	114	SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
463ee0b2	115	}
79072805 LW	116	}
	117	}
	118
7a4c00b4	119	static SV *
	120	save_scalar_at(sptr)
	121	SV **sptr;
79072805	122	{
11343788	123	dTHR;
79072805	124	register SV *sv;
7a4c00b4	125	SV osv = sptr;
79072805	126
7a4c00b4	127	sv = *sptr = NEWSV(0,0);
a0d0e21e	128	if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
79072805	129	sv_upgrade(sv, SvTYPE(osv));
a0d0e21e	130	if (SvGMAGICAL(osv)) {
748a9306 LW	131	MAGIC* mg;
748a9306 LW	132	bool oldtainted = tainted;
a0d0e21e	133	mg_get(osv);
748a9306 LW	134	if (tainting && tainted && (mg = mg_find(osv, 't'))) {
	135	SAVESPTR(mg->mg_obj);
	136	mg->mg_obj = osv;
	137	}
a0d0e21e LW	138	SvFLAGS(osv) \|= (SvFLAGS(osv) &
a0d0e21e LW	139	(SVp_IOK\|SVp_NOK\|SVp_POK)) >> PRIVSHIFT;
748a9306	140	tainted = oldtainted;
a0d0e21e	141	}
79072805	142	SvMAGIC(sv) = SvMAGIC(osv);
a0d0e21e	143	SvFLAGS(sv) \|= SvMAGICAL(osv);
748a9306	144	localizing = 1;
79072805	145	SvSETMAGIC(sv);
748a9306	146	localizing = 0;
79072805 LW	147	}
	148	return sv;
	149	}
	150
7a4c00b4	151	SV *
	152	save_scalar(gv)
	153	GV *gv;
	154	{
11343788	155	dTHR;
7a4c00b4	156	SSCHECK(3);
	157	SSPUSHPTR(gv);
	158	SSPUSHPTR(GvSV(gv));
	159	SSPUSHINT(SAVEt_SV);
	160	return save_scalar_at(&GvSV(gv));
	161	}
	162
	163	SV*
	164	save_svref(sptr)
	165	SV **sptr;
	166	{
11343788	167	dTHR;
7a4c00b4	168	SSCHECK(3);
	169	SSPUSHPTR(sptr);
	170	SSPUSHPTR(*sptr);
	171	SSPUSHINT(SAVEt_SVREF);
	172	return save_scalar_at(sptr);
	173	}
	174
79072805	175	void
5f05dabc	176	save_gp(gv, empty)
79072805	177	GV *gv;
5f05dabc	178	I32 empty;
79072805	179	{
e858de61	180	dTHR;
79072805	181	SSCHECK(3);
4633a7c4	182	SSPUSHPTR(SvREFCNT_inc(gv));
5f05dabc	183	SSPUSHPTR(GvGP(gv));
79072805 LW	184	SSPUSHINT(SAVEt_GP);
79072805 LW	185
5f05dabc	186	if (empty) {
	187	register GP *gp;
	188	Newz(602, gp, 1, GP);
44a8e56a	189	GvGP(gv) = gp_ref(gp);
5f05dabc	190	GvSV(gv) = NEWSV(72,0);
	191	GvLINE(gv) = curcop->cop_line;
	192	GvEGV(gv) = gv;
	193	}
	194	else {
44a8e56a	195	gp_ref(GvGP(gv));
5f05dabc	196	GvINTRO_on(gv);
5f05dabc	197	}
79072805	198	}
79072805	199
79072805 LW	200	AV *
	201	save_ary(gv)
	202	GV *gv;
	203	{
11343788	204	dTHR;
79072805 LW	205	SSCHECK(3);
	206	SSPUSHPTR(gv);
	207	SSPUSHPTR(GvAVn(gv));
	208	SSPUSHINT(SAVEt_AV);
	209
	210	GvAV(gv) = Null(AV*);
	211	return GvAVn(gv);
	212	}
	213
	214	HV *
	215	save_hash(gv)
	216	GV *gv;
	217	{
11343788	218	dTHR;
79072805 LW	219	SSCHECK(3);
	220	SSPUSHPTR(gv);
	221	SSPUSHPTR(GvHVn(gv));
	222	SSPUSHINT(SAVEt_HV);
	223
	224	GvHV(gv) = Null(HV*);
	225	return GvHVn(gv);
	226	}
	227
	228	void
	229	save_item(item)
	230	register SV *item;
	231	{
11343788	232	dTHR;
79072805 LW	233	register SV *sv;
	234
	235	SSCHECK(3);
	236	SSPUSHPTR(item); /* remember the pointer */
	237	sv = NEWSV(0,0);
	238	sv_setsv(sv,item);
	239	SSPUSHPTR(sv); /* remember the value */
	240	SSPUSHINT(SAVEt_ITEM);
	241	}
	242
	243	void
	244	save_int(intp)
	245	int *intp;
	246	{
11343788	247	dTHR;
79072805 LW	248	SSCHECK(3);
	249	SSPUSHINT(*intp);
	250	SSPUSHPTR(intp);
	251	SSPUSHINT(SAVEt_INT);
	252	}
	253
	254	void
85e6fe83 LW	255	save_long(longp)
	256	long *longp;
	257	{
11343788	258	dTHR;
85e6fe83 LW	259	SSCHECK(3);
	260	SSPUSHLONG(*longp);
	261	SSPUSHPTR(longp);
	262	SSPUSHINT(SAVEt_LONG);
	263	}
	264
	265	void
79072805 LW	266	save_I32(intp)
	267	I32 *intp;
	268	{
11343788	269	dTHR;
79072805 LW	270	SSCHECK(3);
	271	SSPUSHINT(*intp);
	272	SSPUSHPTR(intp);
	273	SSPUSHINT(SAVEt_I32);
	274	}
	275
a0d0e21e	276	void
55497cff	277	save_I16(intp)
	278	I16 *intp;
	279	{
e858de61	280	dTHR;
55497cff	281	SSCHECK(3);
	282	SSPUSHINT(*intp);
	283	SSPUSHPTR(intp);
	284	SSPUSHINT(SAVEt_I16);
	285	}
	286
	287	void
a0d0e21e LW	288	save_iv(ivp)
	289	IV *ivp;
	290	{
11343788	291	dTHR;
a0d0e21e	292	SSCHECK(3);
4aa0a1f7	293	SSPUSHIV(*ivp);
a0d0e21e LW	294	SSPUSHPTR(ivp);
	295	SSPUSHINT(SAVEt_IV);
	296	}
	297
85e6fe83 LW	298	/* Cannot use save_sptr() to store a char* since the SV** cast will
	299	* force word-alignment and we'll miss the pointer.
	300	*/
	301	void
	302	save_pptr(pptr)
	303	char **pptr;
	304	{
11343788	305	dTHR;
85e6fe83 LW	306	SSCHECK(3);
	307	SSPUSHPTR(*pptr);
	308	SSPUSHPTR(pptr);
	309	SSPUSHINT(SAVEt_PPTR);
	310	}
	311
79072805 LW	312	void
	313	save_sptr(sptr)
	314	SV **sptr;
	315	{
11343788	316	dTHR;
79072805 LW	317	SSCHECK(3);
	318	SSPUSHPTR(*sptr);
	319	SSPUSHPTR(sptr);
	320	SSPUSHINT(SAVEt_SPTR);
	321	}
	322
	323	void
	324	save_nogv(gv)
	325	GV *gv;
	326	{
11343788	327	dTHR;
79072805 LW	328	SSCHECK(2);
	329	SSPUSHPTR(gv);
	330	SSPUSHINT(SAVEt_NSTAB);
	331	}
	332
	333	void
	334	save_hptr(hptr)
	335	HV **hptr;
	336	{
11343788	337	dTHR;
79072805	338	SSCHECK(3);
85e6fe83	339	SSPUSHPTR(*hptr);
79072805 LW	340	SSPUSHPTR(hptr);
	341	SSPUSHINT(SAVEt_HPTR);
	342	}
	343
	344	void
	345	save_aptr(aptr)
	346	AV **aptr;
	347	{
11343788	348	dTHR;
79072805	349	SSCHECK(3);
85e6fe83	350	SSPUSHPTR(*aptr);
79072805 LW	351	SSPUSHPTR(aptr);
	352	SSPUSHINT(SAVEt_APTR);
	353	}
	354
	355	void
8990e307 LW	356	save_freesv(sv)
	357	SV *sv;
	358	{
11343788	359	dTHR;
8990e307 LW	360	SSCHECK(2);
	361	SSPUSHPTR(sv);
	362	SSPUSHINT(SAVEt_FREESV);
	363	}
	364
	365	void
11343788 MB	366	save_freeop(o)
11343788 MB	367	OP *o;
8990e307	368	{
11343788	369	dTHR;
8990e307	370	SSCHECK(2);
11343788	371	SSPUSHPTR(o);
8990e307 LW	372	SSPUSHINT(SAVEt_FREEOP);
	373	}
	374
	375	void
	376	save_freepv(pv)
	377	char *pv;
	378	{
11343788	379	dTHR;
8990e307 LW	380	SSCHECK(2);
	381	SSPUSHPTR(pv);
	382	SSPUSHINT(SAVEt_FREEPV);
	383	}
	384
	385	void
	386	save_clearsv(svp)
	387	SV** svp;
	388	{
11343788	389	dTHR;
8990e307	390	SSCHECK(2);
4aa0a1f7	391	SSPUSHLONG((long)(svp-curpad));
8990e307 LW	392	SSPUSHINT(SAVEt_CLEARSV);
	393	}
	394
	395	void
	396	save_delete(hv,key,klen)
	397	HV *hv;
	398	char *key;
	399	I32 klen;
	400	{
11343788	401	dTHR;
8990e307 LW	402	SSCHECK(4);
	403	SSPUSHINT(klen);
	404	SSPUSHPTR(key);
	405	SSPUSHPTR(hv);
	406	SSPUSHINT(SAVEt_DELETE);
	407	}
	408
	409	void
79072805 LW	410	save_list(sarg,maxsarg)
	411	register SV **sarg;
	412	I32 maxsarg;
	413	{
11343788	414	dTHR;
79072805 LW	415	register SV *sv;
	416	register I32 i;
	417
	418	SSCHECK(3 * maxsarg);
	419	for (i = 1; i <= maxsarg; i++) {
	420	SSPUSHPTR(sarg[i]); /* remember the pointer */
	421	sv = NEWSV(0,0);
	422	sv_setsv(sv,sarg[i]);
	423	SSPUSHPTR(sv); /* remember the value */
	424	SSPUSHINT(SAVEt_ITEM);
	425	}
	426	}
	427
	428	void
a0d0e21e LW	429	save_destructor(f,p)
	430	void (f) _((void));
	431	void* p;
	432	{
11343788	433	dTHR;
a0d0e21e LW	434	SSCHECK(3);
	435	SSPUSHDPTR(f);
	436	SSPUSHPTR(p);
	437	SSPUSHINT(SAVEt_DESTRUCTOR);
	438	}
	439
	440	void
79072805 LW	441	leave_scope(base)
	442	I32 base;
	443	{
11343788	444	dTHR;
79072805 LW	445	register SV *sv;
	446	register SV *value;
	447	register GV *gv;
	448	register AV *av;
	449	register HV *hv;
	450	register void* ptr;
	451
	452	if (base < -1)
463ee0b2	453	croak("panic: corrupt saved stack index");
79072805 LW	454	while (savestack_ix > base) {
	455	switch (SSPOPINT) {
	456	case SAVEt_ITEM: /* normal string */
	457	value = (SV*)SSPOPPTR;
	458	sv = (SV*)SSPOPPTR;
	459	sv_replace(sv,value);
748a9306	460	localizing = 2;
79072805	461	SvSETMAGIC(sv);
748a9306	462	localizing = 0;
79072805 LW	463	break;
	464	case SAVEt_SV: /* scalar reference */
	465	value = (SV*)SSPOPPTR;
	466	gv = (GV*)SSPOPPTR;
7a4c00b4	467	ptr = &GvSV(gv);
7a4c00b4	468	goto restore_sv;
79072805	469	case SAVEt_SVREF: /* scalar reference */
7a4c00b4	470	value = (SV*)SSPOPPTR;
79072805	471	ptr = SSPOPPTR;
7a4c00b4	472	restore_sv:
79072805	473	sv = (SV*)ptr;
748a9306 LW	474	if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) &&
	475	SvTYPE(sv) != SVt_PVGV)
	476	{
a0d0e21e LW	477	(void)SvUPGRADE(value, SvTYPE(sv));
	478	SvMAGIC(value) = SvMAGIC(sv);
	479	SvFLAGS(value) \|= SvMAGICAL(sv);
	480	SvMAGICAL_off(sv);
79072805	481	SvMAGIC(sv) = 0;
a0d0e21e	482	}
7a4c00b4	483	else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) &&
	484	SvTYPE(value) != SVt_PVGV)
	485	{
	486	SvFLAGS(value) \|= (SvFLAGS(value) &
	487	(SVp_IOK\|SVp_NOK\|SVp_POK)) >> PRIVSHIFT;
	488	SvMAGICAL_off(value);
	489	SvMAGIC(value) = 0;
	490	}
8990e307	491	SvREFCNT_dec(sv);
a0d0e21e	492	(SV*)ptr = value;
748a9306	493	localizing = 2;
a0d0e21e	494	SvSETMAGIC(value);
748a9306	495	localizing = 0;
79072805 LW	496	break;
	497	case SAVEt_AV: /* array reference */
	498	av = (AV*)SSPOPPTR;
	499	gv = (GV*)SSPOPPTR;
8990e307	500	SvREFCNT_dec(GvAV(gv));
79072805 LW	501	GvAV(gv) = av;
	502	break;
	503	case SAVEt_HV: /* hash reference */
	504	hv = (HV*)SSPOPPTR;
	505	gv = (GV*)SSPOPPTR;
8990e307	506	SvREFCNT_dec(GvHV(gv));
79072805 LW	507	GvHV(gv) = hv;
	508	break;
	509	case SAVEt_INT: /* int reference */
	510	ptr = SSPOPPTR;
	511	(int)ptr = (int)SSPOPINT;
	512	break;
85e6fe83 LW	513	case SAVEt_LONG: /* long reference */
	514	ptr = SSPOPPTR;
	515	(long)ptr = (long)SSPOPLONG;
	516	break;
79072805 LW	517	case SAVEt_I32: /* I32 reference */
	518	ptr = SSPOPPTR;
	519	(I32)ptr = (I32)SSPOPINT;
	520	break;
55497cff	521	case SAVEt_I16: /* I16 reference */
	522	ptr = SSPOPPTR;
	523	(I16)ptr = (I16)SSPOPINT;
	524	break;
a0d0e21e LW	525	case SAVEt_IV: /* IV reference */
	526	ptr = SSPOPPTR;
	527	(IV)ptr = (IV)SSPOPIV;
	528	break;
79072805 LW	529	case SAVEt_SPTR: /* SV* reference */
	530	ptr = SSPOPPTR;
	531	(SV)ptr = (SV)SSPOPPTR;
	532	break;
85e6fe83 LW	533	case SAVEt_PPTR: /* char* reference */
	534	ptr = SSPOPPTR;
	535	(char)ptr = (char)SSPOPPTR;
	536	break;
79072805 LW	537	case SAVEt_HPTR: /* HV* reference */
	538	ptr = SSPOPPTR;
	539	(HV)ptr = (HV)SSPOPPTR;
	540	break;
	541	case SAVEt_APTR: /* AV* reference */
	542	ptr = SSPOPPTR;
	543	(AV)ptr = (AV)SSPOPPTR;
	544	break;
	545	case SAVEt_NSTAB:
	546	gv = (GV*)SSPOPPTR;
1f96a9ed	547	(void)sv_clear((SV*)gv);
79072805 LW	548	break;
	549	case SAVEt_GP: /* scalar reference */
	550	ptr = SSPOPPTR;
	551	gv = (GV*)SSPOPPTR;
	552	gp_free(gv);
	553	GvGP(gv) = (GP*)ptr;
4633a7c4	554	SvREFCNT_dec(gv);
79072805	555	break;
8990e307 LW	556	case SAVEt_FREESV:
	557	ptr = SSPOPPTR;
	558	SvREFCNT_dec((SV*)ptr);
	559	break;
	560	case SAVEt_FREEOP:
	561	ptr = SSPOPPTR;
46fc3d4c	562	if (comppad)
46fc3d4c	563	curpad = AvARRAY(comppad);
8990e307 LW	564	op_free((OP*)ptr);
	565	break;
	566	case SAVEt_FREEPV:
	567	ptr = SSPOPPTR;
	568	Safefree((char*)ptr);
	569	break;
	570	case SAVEt_CLEARSV:
4aa0a1f7	571	ptr = (void*)&curpad[SSPOPLONG];
8990e307	572	sv = (SV*)ptr;
a0d0e21e	573	if (SvREFCNT(sv) <= 1) { /* Can clear pad variable in place. */
8990e307 LW	574	if (SvTHINKFIRST(sv)) {
	575	if (SvREADONLY(sv))
	576	croak("panic: leave_scope clearsv");
	577	if (SvROK(sv))
	578	sv_unref(sv);
	579	}
a0d0e21e LW	580	if (SvMAGICAL(sv))
a0d0e21e LW	581	mg_free(sv);
8990e307 LW	582
	583	switch (SvTYPE(sv)) {
	584	case SVt_NULL:
	585	break;
	586	case SVt_PVAV:
44a8e56a	587	av_clear((AV*)sv);
8990e307 LW	588	break;
8990e307 LW	589	case SVt_PVHV:
44a8e56a	590	hv_clear((HV*)sv);
8990e307 LW	591	break;
8990e307 LW	592	case SVt_PVCV:
5377b701 CS	593	croak("panic: leave_scope pad code");
	594	case SVt_RV:
	595	case SVt_IV:
	596	case SVt_NV:
	597	(void)SvOK_off(sv);
8990e307 LW	598	break;
8990e307 LW	599	default:
a0d0e21e	600	(void)SvOK_off(sv);
5377b701	601	(void)SvOOK_off(sv);
8990e307 LW	602	break;
	603	}
	604	}
	605	else { /* Someone has a claim on this, so abandon it. */
4aa0a1f7	606	U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY\|SVs_PADMY\|SVs_PADTMP);
8990e307 LW	607	SvREFCNT_dec(sv); /* Cast current value to the winds. */
	608	switch (SvTYPE(sv)) { /* Console ourselves with a new value */
	609	case SVt_PVAV: (SV)ptr = (SV)newAV(); break;
	610	case SVt_PVHV: (SV)ptr = (SV)newHV(); break;
	611	default: (SV*)ptr = NEWSV(0,0); break;
	612	}
4aa0a1f7	613	SvFLAGS((SV)ptr) \|= padflags; / preserve pad nature */
8990e307 LW	614	}
	615	break;
	616	case SAVEt_DELETE:
	617	ptr = SSPOPPTR;
	618	hv = (HV*)ptr;
	619	ptr = SSPOPPTR;
748a9306	620	(void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
adbc6bb1	621	Safefree(ptr);
8990e307	622	break;
a0d0e21e LW	623	case SAVEt_DESTRUCTOR:
	624	ptr = SSPOPPTR;
	625	(*SSPOPDPTR)(ptr);
	626	break;
	627	case SAVEt_REGCONTEXT:
8e07c86e AD	628	{
	629	I32 delta = SSPOPINT;
	630	savestack_ix -= delta; /* regexp must have croaked */
	631	}
a0d0e21e	632	break;
55497cff	633	case SAVEt_STACK_POS: /* Position on Perl stack */
	634	{
	635	I32 delta = SSPOPINT;
	636	stack_sp = stack_base + delta;
	637	}
	638	break;
79072805	639	default:
463ee0b2	640	croak("panic: leave_scope inconsistency");
79072805 LW	641	}
	642	}
	643	}
8990e307 LW	644
8990e307 LW	645	#ifdef DEBUGGING
1f96a9ed	646
8990e307 LW	647	void
	648	cx_dump(cx)
	649	CONTEXT* cx;
	650	{
11343788	651	dTHR;
760ac839	652	PerlIO_printf(Perl_debug_log, "CX %d = %s\n", cx - cxstack, block_type[cx->cx_type]);
8990e307	653	if (cx->cx_type != CXt_SUBST) {
760ac839 LW	654	PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
	655	PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop);
	656	PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
	657	PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
	658	PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp);
	659	PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm);
	660	PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
8990e307 LW	661	}
	662	switch (cx->cx_type) {
	663	case CXt_NULL:
	664	case CXt_BLOCK:
	665	break;
	666	case CXt_SUB:
760ac839	667	PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n",
8990e307	668	(long)cx->blk_sub.cv);
760ac839	669	PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n",
8990e307	670	(long)cx->blk_sub.gv);
760ac839	671	PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n",
8990e307	672	(long)cx->blk_sub.dfoutgv);
760ac839	673	PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
8990e307	674	(long)cx->blk_sub.olddepth);
760ac839	675	PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
8990e307 LW	676	(int)cx->blk_sub.hasargs);
	677	break;
	678	case CXt_EVAL:
760ac839	679	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
8990e307	680	(long)cx->blk_eval.old_in_eval);
760ac839	681	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
c07a80fd	682	op_name[cx->blk_eval.old_op_type],
c07a80fd	683	op_desc[cx->blk_eval.old_op_type]);
760ac839	684	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
8990e307	685	cx->blk_eval.old_name);
760ac839	686	PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n",
8990e307 LW	687	(long)cx->blk_eval.old_eval_root);
	688	break;
	689
	690	case CXt_LOOP:
760ac839	691	PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
8990e307	692	cx->blk_loop.label);
760ac839	693	PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
8990e307	694	(long)cx->blk_loop.resetsp);
760ac839	695	PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%lx\n",
8990e307	696	(long)cx->blk_loop.redo_op);
760ac839	697	PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n",
8990e307	698	(long)cx->blk_loop.next_op);
760ac839	699	PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n",
8990e307	700	(long)cx->blk_loop.last_op);
760ac839	701	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
8990e307	702	(long)cx->blk_loop.iterix);
760ac839	703	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n",
8990e307	704	(long)cx->blk_loop.iterary);
760ac839	705	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n",
8990e307 LW	706	(long)cx->blk_loop.itervar);
8990e307 LW	707	if (cx->blk_loop.itervar)
760ac839	708	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n",
8990e307	709	(long)cx->blk_loop.itersave);
7a4c00b4	710	PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n",
7a4c00b4	711	(long)cx->blk_loop.iterlval);
8990e307 LW	712	break;
	713
	714	case CXt_SUBST:
760ac839	715	PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
8990e307	716	(long)cx->sb_iters);
760ac839	717	PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
8990e307	718	(long)cx->sb_maxiters);
760ac839	719	PerlIO_printf(Perl_debug_log, "SB_SAFEBASE = %ld\n",
8990e307	720	(long)cx->sb_safebase);
760ac839	721	PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
8990e307	722	(long)cx->sb_once);
760ac839	723	PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
8990e307	724	cx->sb_orig);
760ac839	725	PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n",
8990e307	726	(long)cx->sb_dstr);
760ac839	727	PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n",
8990e307	728	(long)cx->sb_targ);
760ac839	729	PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n",
8990e307	730	(long)cx->sb_s);
760ac839	731	PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n",
8990e307	732	(long)cx->sb_m);
760ac839	733	PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n",
8990e307	734	(long)cx->sb_strend);
c90c0ff4	735	PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%lx\n",
c90c0ff4	736	(long)cx->sb_rxres);
8990e307 LW	737	break;
	738	}
	739	}
	740	#endif