[perl5.git] / pp.h

/*    pp.h
 *
 *    Copyright (c) 1991-1999, 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.
 *
 */

#ifdef USE_THREADS
#define ARGS thr
#define dARGS struct perl_thread *thr;
#else
#define ARGS
#define dARGS
#endif /* USE_THREADS */

#define PP(s) OP * Perl_##s(pTHX)

#define SP sp
#define MARK mark
#define TARG targ

#define PUSHMARK(p) if (++PL_markstack_ptr == PL_markstack_max)	\
			markstack_grow();			\
		    *PL_markstack_ptr = (p) - PL_stack_base

#define TOPMARK		(*PL_markstack_ptr)
#define POPMARK		(*PL_markstack_ptr--)

#define djSP		register SV **sp = PL_stack_sp
#define dSP		dTHR; djSP
#define dMARK		register SV **mark = PL_stack_base + POPMARK
#define dORIGMARK	I32 origmark = mark - PL_stack_base
#define SETORIGMARK	origmark = mark - PL_stack_base
#define ORIGMARK	(PL_stack_base + origmark)

#define SPAGAIN		sp = PL_stack_sp
#define MSPAGAIN	sp = PL_stack_sp; mark = ORIGMARK

#define GETTARGETSTACKED targ = (PL_op->op_flags & OPf_STACKED ? POPs : PAD_SV(PL_op->op_targ))
#define dTARGETSTACKED SV * GETTARGETSTACKED

#define GETTARGET targ = PAD_SV(PL_op->op_targ)
#define dTARGET SV * GETTARGET

#define GETATARGET targ = (PL_op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(PL_op->op_targ))
#define dATARGET SV * GETATARGET

#define dTARG SV *targ

#define dXS_TARGET SV * targ = (PL_op->op_private & OPpENTERSUB_HASTARG ? PAD_SV(PL_op->op_targ) : sv_newmortal())

#define NORMAL PL_op->op_next
#define DIE return Perl_die

#define PUTBACK		PL_stack_sp = sp
#define RETURN		return PUTBACK, NORMAL
#define RETURNOP(o)	return PUTBACK, o
#define RETURNX(x)	return x, PUTBACK, NORMAL

#define POPs		(*sp--)
#define POPp		(SvPVx(POPs, PL_na))		/* deprecated */
#define POPpx		(SvPVx(POPs, n_a))
#define POPn		(SvNVx(POPs))
#define POPi		((IV)SvIVx(POPs))
#define POPu		((UV)SvUVx(POPs))
#define POPl		((long)SvIVx(POPs))
#define POPul		((unsigned long)SvIVx(POPs))
#ifdef HAS_QUAD
#define POPq		((Quad_t)SvIVx(POPs))
#define POPuq		((Uquad_t)SvUVx(POPs))
#endif

#define TOPs		(*sp)
#define TOPp		(SvPV(TOPs, PL_na))		/* deprecated */
#define TOPpx		(SvPV(TOPs, n_a))
#define TOPn		(SvNV(TOPs))
#define TOPi		((IV)SvIV(TOPs))
#define TOPu		((UV)SvUV(TOPs))
#define TOPl		((long)SvIV(TOPs))
#define TOPul		((unsigned long)SvUV(TOPs))
#ifdef HAS_QUAD
#define TOPq		((Quad_t)SvIV(TOPs))
#define TOPuq		((Uquad_t)SvUV(TOPs))
#endif

/* Go to some pains in the rare event that we must extend the stack. */
#define EXTEND(p,n)	STMT_START { if (PL_stack_max - p < (n)) {		\
			    sp = stack_grow(sp,p, (int) (n));		\
			} } STMT_END

/* Same thing, but update mark register too. */
#define MEXTEND(p,n)	STMT_START {if (PL_stack_max - p < (n)) {		\
			    int markoff = mark - PL_stack_base;		\
			    sp = stack_grow(sp,p,(int) (n));		\
			    mark = PL_stack_base + markoff;		\
			} } STMT_END

#define PUSHs(s)	(*++sp = (s))
#define PUSHTARG	STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END
#define PUSHp(p,l)	STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END
#define PUSHn(n)	STMT_START { sv_setnv(TARG, (NV)(n)); PUSHTARG; } STMT_END
#define PUSHi(i)	STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END
#define PUSHu(u)	STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END

#define XPUSHs(s)	STMT_START { EXTEND(sp,1); (*++sp = (s)); } STMT_END
#define XPUSHTARG	STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END
#define XPUSHp(p,l)	STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END
#define XPUSHn(n)	STMT_START { sv_setnv(TARG, (NV)(n)); XPUSHTARG; } STMT_END
#define XPUSHi(i)	STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END
#define XPUSHu(u)	STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END
#define XPUSHundef	STMT_START { SvOK_off(TARG); XPUSHs(TARG); } STMT_END

#define SETs(s)		(*sp = s)
#define SETTARG		STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END
#define SETp(p,l)	STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END
#define SETn(n)		STMT_START { sv_setnv(TARG, (NV)(n)); SETTARG; } STMT_END
#define SETi(i)		STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END
#define SETu(u)		STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END

#define dTOPss		SV *sv = TOPs
#define dPOPss		SV *sv = POPs
#define dTOPnv		NV value = TOPn
#define dPOPnv		NV value = POPn
#define dTOPiv		IV value = TOPi
#define dPOPiv		IV value = POPi
#define dTOPuv		UV value = TOPu
#define dPOPuv		UV value = POPu
#ifdef HAS_QUAD
#define dTOPqv		Quad_t value = TOPu
#define dPOPqv		Quad_t value = POPu
#define dTOPuqv		Uquad_t value = TOPuq
#define dPOPuqv		Uquad_t value = POPuq
#endif

#define dPOPXssrl(X)	SV *right = POPs; SV *left = CAT2(X,s)
#define dPOPXnnrl(X)	NV right = POPn; NV left = CAT2(X,n)
#define dPOPXiirl(X)	IV right = POPi; IV left = CAT2(X,i)

#define USE_LEFT(sv) \
	(SvOK(sv) || SvGMAGICAL(sv) || !(PL_op->op_flags & OPf_STACKED))
#define dPOPXnnrl_ul(X)	\
    NV right = POPn;				\
    SV *leftsv = CAT2(X,s);				\
    NV left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0
#define dPOPXiirl_ul(X) \
    IV right = POPi;					\
    SV *leftsv = CAT2(X,s);				\
    IV left = USE_LEFT(leftsv) ? SvIV(leftsv) : 0

#define dPOPPOPssrl	dPOPXssrl(POP)
#define dPOPPOPnnrl	dPOPXnnrl(POP)
#define dPOPPOPnnrl_ul	dPOPXnnrl_ul(POP)
#define dPOPPOPiirl	dPOPXiirl(POP)
#define dPOPPOPiirl_ul	dPOPXiirl_ul(POP)

#define dPOPTOPssrl	dPOPXssrl(TOP)
#define dPOPTOPnnrl	dPOPXnnrl(TOP)
#define dPOPTOPnnrl_ul	dPOPXnnrl_ul(TOP)
#define dPOPTOPiirl	dPOPXiirl(TOP)
#define dPOPTOPiirl_ul	dPOPXiirl_ul(TOP)

#define RETPUSHYES	RETURNX(PUSHs(&PL_sv_yes))
#define RETPUSHNO	RETURNX(PUSHs(&PL_sv_no))
#define RETPUSHUNDEF	RETURNX(PUSHs(&PL_sv_undef))

#define RETSETYES	RETURNX(SETs(&PL_sv_yes))
#define RETSETNO	RETURNX(SETs(&PL_sv_no))
#define RETSETUNDEF	RETURNX(SETs(&PL_sv_undef))

#define ARGTARG		PL_op->op_targ

    /* See OPpTARGET_MY: */
#define MAXARG		(PL_op->op_private & 15)

#define SWITCHSTACK(f,t) \
    STMT_START {							\
	AvFILLp(f) = sp - PL_stack_base;				\
	PL_stack_base = AvARRAY(t);					\
	PL_stack_max = PL_stack_base + AvMAX(t);			\
	sp = PL_stack_sp = PL_stack_base + AvFILLp(t);			\
	PL_curstack = t;						\
    } STMT_END

#define EXTEND_MORTAL(n) \
    STMT_START {							\
	if (PL_tmps_ix + (n) >= PL_tmps_max)				\
	    tmps_grow(n);						\
    } STMT_END

#define AMGf_noright	1
#define AMGf_noleft	2
#define AMGf_assign	4
#define AMGf_unary	8

#define tryAMAGICbinW(meth,assign,set) STMT_START { \
          if (PL_amagic_generation) { \
	    SV* tmpsv; \
	    SV* right= *(sp); SV* left= *(sp-1);\
	    if ((SvAMAGIC(left)||SvAMAGIC(right))&&\
		(tmpsv=amagic_call(left, \
				   right, \
				   CAT2(meth,_amg), \
				   (assign)? AMGf_assign: 0))) {\
	       SPAGAIN;	\
	       (void)POPs; set(tmpsv); RETURN; } \
	  } \
	} STMT_END

#define tryAMAGICbin(meth,assign) tryAMAGICbinW(meth,assign,SETsv)
#define tryAMAGICbinSET(meth,assign) tryAMAGICbinW(meth,assign,SETs)

#define AMG_CALLun(sv,meth) amagic_call(sv,&PL_sv_undef,  \
					CAT2(meth,_amg),AMGf_noright | AMGf_unary)
#define AMG_CALLbinL(left,right,meth) \
            amagic_call(left,right,CAT2(meth,_amg),AMGf_noright)

#define tryAMAGICunW(meth,set,shift,ret) STMT_START { \
          if (PL_amagic_generation) { \
	    SV* tmpsv; \
	    SV* arg= sp[shift]; \
	  am_again: \
	    if ((SvAMAGIC(arg))&&\
		(tmpsv=AMG_CALLun(arg,meth))) {\
	       SPAGAIN; if (shift) sp += shift; \
	       set(tmpsv); ret; } \
	  } \
	} STMT_END

#define FORCE_SETs(sv) STMT_START { sv_setsv(TARG, (sv)); SETTARG; } STMT_END

#define tryAMAGICun(meth)	tryAMAGICunW(meth,SETsvUN,0,RETURN)
#define tryAMAGICunSET(meth)	tryAMAGICunW(meth,SETs,0,RETURN)
#define tryAMAGICunTARGET(meth, shift)					\
	{ dSP; sp--; 	/* get TARGET from below PL_stack_sp */		\
	    { dTARGETSTACKED; 						\
		{ dSP; tryAMAGICunW(meth,FORCE_SETs,shift,RETURN);}}}

#define setAGAIN(ref) sv = arg = ref;					\
  if (!SvROK(ref))							\
      Perl_croak(aTHX_ "Overloaded dereference did not return a reference");	\
  goto am_again;

#define tryAMAGICunDEREF(meth) tryAMAGICunW(meth,setAGAIN,0,(void)0)

#define opASSIGN (PL_op->op_flags & OPf_STACKED)
#define SETsv(sv)	STMT_START {					\
		if (opASSIGN || (SvFLAGS(TARG) & SVs_PADMY))		\
		   { sv_setsv(TARG, (sv)); SETTARG; }			\
		else SETs(sv); } STMT_END

#define SETsvUN(sv)	STMT_START {					\
		if (SvFLAGS(TARG) & SVs_PADMY)		\
		   { sv_setsv(TARG, (sv)); SETTARG; }			\
		else SETs(sv); } STMT_END

/* newSVsv does not behave as advertised, so we copy missing
 * information by hand */

/* SV* ref causes confusion with the member variable
   changed SV* ref to SV* tmpRef */
#define RvDEEPCP(rv) STMT_START { SV* tmpRef=SvRV(rv);      \
  if (SvREFCNT(tmpRef)>1) {                 \
    SvREFCNT_dec(tmpRef);                   \
    SvRV(rv)=AMG_CALLun(rv,copy);        \
  } } STMT_END
Commit	Line	Data
a0d0e21e	1	/* pp.h
79072805	2	*
4eb8286e	3	* Copyright (c) 1991-1999, Larry Wall
79072805	4	*
a0d0e21e LW	5	* You may distribute under the terms of either the GNU General Public
a0d0e21e LW	6	* License or the Artistic License, as specified in the README file.
79072805	7	*
a0d0e21e	8	*/
79072805	9
11343788 MB	10	#ifdef USE_THREADS
11343788 MB	11	#define ARGS thr
52e1cb5e	12	#define dARGS struct perl_thread *thr;
11343788	13	#else
79072805	14	#define ARGS
79072805	15	#define dARGS
11343788	16	#endif /* USE_THREADS */
22c35a8c	17
cea2e8a9	18	#define PP(s) OP * Perl_##s(pTHX)
79072805 LW	19
	20	#define SP sp
	21	#define MARK mark
	22	#define TARG targ
	23
3280af22	24	#define PUSHMARK(p) if (++PL_markstack_ptr == PL_markstack_max) \
a0d0e21e	25	markstack_grow(); \
3280af22	26	*PL_markstack_ptr = (p) - PL_stack_base
a0d0e21e	27
3280af22 NIS	28	#define TOPMARK (*PL_markstack_ptr)
3280af22 NIS	29	#define POPMARK (*PL_markstack_ptr--)
a0d0e21e	30
3280af22	31	#define djSP register SV **sp = PL_stack_sp
4e35701f	32	#define dSP dTHR; djSP
3280af22 NIS	33	#define dMARK register SV **mark = PL_stack_base + POPMARK
	34	#define dORIGMARK I32 origmark = mark - PL_stack_base
	35	#define SETORIGMARK origmark = mark - PL_stack_base
	36	#define ORIGMARK (PL_stack_base + origmark)
79072805	37
3280af22 NIS	38	#define SPAGAIN sp = PL_stack_sp
3280af22 NIS	39	#define MSPAGAIN sp = PL_stack_sp; mark = ORIGMARK
79072805	40
533c011a	41	#define GETTARGETSTACKED targ = (PL_op->op_flags & OPf_STACKED ? POPs : PAD_SV(PL_op->op_targ))
79072805 LW	42	#define dTARGETSTACKED SV * GETTARGETSTACKED
79072805 LW	43
533c011a	44	#define GETTARGET targ = PAD_SV(PL_op->op_targ)
79072805 LW	45	#define dTARGET SV * GETTARGET
79072805 LW	46
533c011a	47	#define GETATARGET targ = (PL_op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(PL_op->op_targ))
79072805 LW	48	#define dATARGET SV * GETATARGET
	49
	50	#define dTARG SV *targ
	51
d3011074 IZ	52	#define dXS_TARGET SV * targ = (PL_op->op_private & OPpENTERSUB_HASTARG ? PAD_SV(PL_op->op_targ) : sv_newmortal())
d3011074 IZ	53
533c011a	54	#define NORMAL PL_op->op_next
cea2e8a9	55	#define DIE return Perl_die
79072805	56
3280af22	57	#define PUTBACK PL_stack_sp = sp
79072805 LW	58	#define RETURN return PUTBACK, NORMAL
	59	#define RETURNOP(o) return PUTBACK, o
	60	#define RETURNX(x) return x, PUTBACK, NORMAL
	61
	62	#define POPs (*sp--)
2d8e6c8d GS	63	#define POPp (SvPVx(POPs, PL_na)) /* deprecated */
2d8e6c8d GS	64	#define POPpx (SvPVx(POPs, n_a))
463ee0b2	65	#define POPn (SvNVx(POPs))
a0d0e21e	66	#define POPi ((IV)SvIVx(POPs))
ff68c719	67	#define POPu ((UV)SvUVx(POPs))
463ee0b2	68	#define POPl ((long)SvIVx(POPs))
d9b3e12d JH	69	#define POPul ((unsigned long)SvIVx(POPs))
	70	#ifdef HAS_QUAD
	71	#define POPq ((Quad_t)SvIVx(POPs))
c5a0f51a	72	#define POPuq ((Uquad_t)SvUVx(POPs))
d9b3e12d	73	#endif
79072805 LW	74
79072805 LW	75	#define TOPs (*sp)
2d8e6c8d GS	76	#define TOPp (SvPV(TOPs, PL_na)) /* deprecated */
2d8e6c8d GS	77	#define TOPpx (SvPV(TOPs, n_a))
463ee0b2	78	#define TOPn (SvNV(TOPs))
a0d0e21e	79	#define TOPi ((IV)SvIV(TOPs))
ff68c719	80	#define TOPu ((UV)SvUV(TOPs))
463ee0b2	81	#define TOPl ((long)SvIV(TOPs))
c5a0f51a	82	#define TOPul ((unsigned long)SvUV(TOPs))
d9b3e12d JH	83	#ifdef HAS_QUAD
d9b3e12d JH	84	#define TOPq ((Quad_t)SvIV(TOPs))
c5a0f51a	85	#define TOPuq ((Uquad_t)SvUV(TOPs))
d9b3e12d	86	#endif
79072805 LW	87
79072805 LW	88	/* Go to some pains in the rare event that we must extend the stack. */
3280af22	89	#define EXTEND(p,n) STMT_START { if (PL_stack_max - p < (n)) { \
bbce6d69	90	sp = stack_grow(sp,p, (int) (n)); \
86547924	91	} } STMT_END
a0d0e21e	92
79072805	93	/* Same thing, but update mark register too. */
3280af22 NIS	94	#define MEXTEND(p,n) STMT_START {if (PL_stack_max - p < (n)) { \
3280af22 NIS	95	int markoff = mark - PL_stack_base; \
bbce6d69	96	sp = stack_grow(sp,p,(int) (n)); \
3280af22	97	mark = PL_stack_base + markoff; \
86547924	98	} } STMT_END
79072805 LW	99
79072805 LW	100	#define PUSHs(s) (*++sp = (s))
86547924	101	#define PUSHTARG STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END
86547924	102	#define PUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END
65202027	103	#define PUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); PUSHTARG; } STMT_END
86547924	104	#define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END
55497cff	105	#define PUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END
79072805	106
86547924	107	#define XPUSHs(s) STMT_START { EXTEND(sp,1); (*++sp = (s)); } STMT_END
	108	#define XPUSHTARG STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END
	109	#define XPUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END
65202027	110	#define XPUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); XPUSHTARG; } STMT_END
86547924	111	#define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END
55497cff	112	#define XPUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END
b162f9ea	113	#define XPUSHundef STMT_START { SvOK_off(TARG); XPUSHs(TARG); } STMT_END
79072805 LW	114
79072805 LW	115	#define SETs(s) (*sp = s)
86547924	116	#define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END
86547924	117	#define SETp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END
65202027	118	#define SETn(n) STMT_START { sv_setnv(TARG, (NV)(n)); SETTARG; } STMT_END
86547924	119	#define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END
55497cff	120	#define SETu(u) STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END
a0d0e21e	121
79072805 LW	122	#define dTOPss SV *sv = TOPs
79072805 LW	123	#define dPOPss SV *sv = POPs
65202027 DS	124	#define dTOPnv NV value = TOPn
65202027 DS	125	#define dPOPnv NV value = POPn
a0d0e21e LW	126	#define dTOPiv IV value = TOPi
a0d0e21e LW	127	#define dPOPiv IV value = POPi
55497cff	128	#define dTOPuv UV value = TOPu
55497cff	129	#define dPOPuv UV value = POPu
2d4389e4 JH	130	#ifdef HAS_QUAD
	131	#define dTOPqv Quad_t value = TOPu
	132	#define dPOPqv Quad_t value = POPu
	133	#define dTOPuqv Uquad_t value = TOPuq
	134	#define dPOPuqv Uquad_t value = POPuq
	135	#endif
79072805	136
7a4c00b4	137	#define dPOPXssrl(X) SV right = POPs; SV left = CAT2(X,s)
65202027	138	#define dPOPXnnrl(X) NV right = POPn; NV left = CAT2(X,n)
7a4c00b4	139	#define dPOPXiirl(X) IV right = POPi; IV left = CAT2(X,i)
	140
	141	#define USE_LEFT(sv) \
533c011a	142	(SvOK(sv) \|\| SvGMAGICAL(sv) \|\| !(PL_op->op_flags & OPf_STACKED))
7a4c00b4	143	#define dPOPXnnrl_ul(X) \
65202027	144	NV right = POPn; \
7a4c00b4	145	SV *leftsv = CAT2(X,s); \
65202027	146	NV left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0
7a4c00b4	147	#define dPOPXiirl_ul(X) \
	148	IV right = POPi; \
	149	SV *leftsv = CAT2(X,s); \
	150	IV left = USE_LEFT(leftsv) ? SvIV(leftsv) : 0
	151
	152	#define dPOPPOPssrl dPOPXssrl(POP)
	153	#define dPOPPOPnnrl dPOPXnnrl(POP)
	154	#define dPOPPOPnnrl_ul dPOPXnnrl_ul(POP)
	155	#define dPOPPOPiirl dPOPXiirl(POP)
	156	#define dPOPPOPiirl_ul dPOPXiirl_ul(POP)
	157
	158	#define dPOPTOPssrl dPOPXssrl(TOP)
	159	#define dPOPTOPnnrl dPOPXnnrl(TOP)
	160	#define dPOPTOPnnrl_ul dPOPXnnrl_ul(TOP)
	161	#define dPOPTOPiirl dPOPXiirl(TOP)
	162	#define dPOPTOPiirl_ul dPOPXiirl_ul(TOP)
79072805	163
3280af22 NIS	164	#define RETPUSHYES RETURNX(PUSHs(&PL_sv_yes))
	165	#define RETPUSHNO RETURNX(PUSHs(&PL_sv_no))
	166	#define RETPUSHUNDEF RETURNX(PUSHs(&PL_sv_undef))
79072805	167
3280af22 NIS	168	#define RETSETYES RETURNX(SETs(&PL_sv_yes))
	169	#define RETSETNO RETURNX(SETs(&PL_sv_no))
	170	#define RETSETUNDEF RETURNX(SETs(&PL_sv_undef))
79072805	171
533c011a	172	#define ARGTARG PL_op->op_targ
b162f9ea IZ	173
	174	/* See OPpTARGET_MY: */
	175	#define MAXARG (PL_op->op_private & 15)
79072805	176
e336de0d GS	177	#define SWITCHSTACK(f,t) \
e336de0d GS	178	STMT_START { \
677b06e3	179	AvFILLp(f) = sp - PL_stack_base; \
3280af22	180	PL_stack_base = AvARRAY(t); \
677b06e3	181	PL_stack_max = PL_stack_base + AvMAX(t); \
3280af22	182	sp = PL_stack_sp = PL_stack_base + AvFILLp(t); \
677b06e3	183	PL_curstack = t; \
e336de0d	184	} STMT_END
79072805	185
bbce6d69	186	#define EXTEND_MORTAL(n) \
677b06e3 GS	187	STMT_START { \
	188	if (PL_tmps_ix + (n) >= PL_tmps_max) \
	189	tmps_grow(n); \
	190	} STMT_END
bbce6d69	191
a0d0e21e LW	192	#define AMGf_noright 1
	193	#define AMGf_noleft 2
	194	#define AMGf_assign 4
	195	#define AMGf_unary 8
	196
86547924	197	#define tryAMAGICbinW(meth,assign,set) STMT_START { \
3280af22	198	if (PL_amagic_generation) { \
a0d0e21e LW	199	SV* tmpsv; \
	200	SV* right= (sp); SV left= *(sp-1);\
	201	if ((SvAMAGIC(left)\|\|SvAMAGIC(right))&&\
	202	(tmpsv=amagic_call(left, \
	203	right, \
	204	CAT2(meth,_amg), \
	205	(assign)? AMGf_assign: 0))) {\
	206	SPAGAIN; \
	207	(void)POPs; set(tmpsv); RETURN; } \
	208	} \
86547924	209	} STMT_END
a0d0e21e LW	210
	211	#define tryAMAGICbin(meth,assign) tryAMAGICbinW(meth,assign,SETsv)
	212	#define tryAMAGICbinSET(meth,assign) tryAMAGICbinW(meth,assign,SETs)
	213
3280af22	214	#define AMG_CALLun(sv,meth) amagic_call(sv,&PL_sv_undef, \
a0d0e21e LW	215	CAT2(meth,_amg),AMGf_noright \| AMGf_unary)
	216	#define AMG_CALLbinL(left,right,meth) \
	217	amagic_call(left,right,CAT2(meth,_amg),AMGf_noright)
	218
e8c20960	219	#define tryAMAGICunW(meth,set,shift,ret) STMT_START { \
3280af22	220	if (PL_amagic_generation) { \
a0d0e21e	221	SV* tmpsv; \
f5284f61 IZ	222	SV* arg= sp[shift]; \
f5284f61 IZ	223	am_again: \
a0d0e21e LW	224	if ((SvAMAGIC(arg))&&\
a0d0e21e LW	225	(tmpsv=AMG_CALLun(arg,meth))) {\
f5284f61	226	SPAGAIN; if (shift) sp += shift; \
e8c20960	227	set(tmpsv); ret; } \
a0d0e21e	228	} \
86547924	229	} STMT_END
a0d0e21e	230
f5284f61 IZ	231	#define FORCE_SETs(sv) STMT_START { sv_setsv(TARG, (sv)); SETTARG; } STMT_END
f5284f61 IZ	232
b162f9ea IZ	233	#define tryAMAGICun(meth) tryAMAGICunW(meth,SETsvUN,0,RETURN)
b162f9ea IZ	234	#define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs,0,RETURN)
f5284f61 IZ	235	#define tryAMAGICunTARGET(meth, shift) \
	236	{ dSP; sp--; /* get TARGET from below PL_stack_sp */ \
	237	{ dTARGETSTACKED; \
e8c20960 IZ	238	{ dSP; tryAMAGICunW(meth,FORCE_SETs,shift,RETURN);}}}
	239
	240	#define setAGAIN(ref) sv = arg = ref; \
	241	if (!SvROK(ref)) \
cea2e8a9	242	Perl_croak(aTHX_ "Overloaded dereference did not return a reference"); \
e8c20960 IZ	243	goto am_again;
e8c20960 IZ	244
0f4592ef	245	#define tryAMAGICunDEREF(meth) tryAMAGICunW(meth,setAGAIN,0,(void)0)
a0d0e21e	246
533c011a	247	#define opASSIGN (PL_op->op_flags & OPf_STACKED)
e9905555	248	#define SETsv(sv) STMT_START { \
b162f9ea IZ	249	if (opASSIGN \|\| (SvFLAGS(TARG) & SVs_PADMY)) \
	250	{ sv_setsv(TARG, (sv)); SETTARG; } \
	251	else SETs(sv); } STMT_END
	252
	253	#define SETsvUN(sv) STMT_START { \
	254	if (SvFLAGS(TARG) & SVs_PADMY) \
	255	{ sv_setsv(TARG, (sv)); SETTARG; } \
e9905555	256	else SETs(sv); } STMT_END
a0d0e21e LW	257
	258	/* newSVsv does not behave as advertised, so we copy missing
	259	* information by hand */
	260
76e3520e GS	261	/* SV* ref causes confusion with the member variable
	262	changed SV* ref to SV* tmpRef */
	263	#define RvDEEPCP(rv) STMT_START { SV* tmpRef=SvRV(rv); \
	264	if (SvREFCNT(tmpRef)>1) { \
	265	SvREFCNT_dec(tmpRef); \
748a9306	266	SvRV(rv)=AMG_CALLun(rv,copy); \
86547924	267	} } STMT_END