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/* pp.h
*
* Copyright (c) 1991-1994, 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.
*
*/
#define ARGS
#define ARGSproto void
#define dARGS
#define PP(s) OP* s(ARGS) dARGS
#define SP sp
#define MARK mark
#define TARG targ
#define PUSHMARK(p) if (++markstack_ptr == markstack_max) \
markstack_grow(); \
*markstack_ptr = (p) - stack_base
#define TOPMARK (*markstack_ptr)
#define POPMARK (*markstack_ptr--)
#define dSP register SV **sp = stack_sp
#define dMARK register SV **mark = stack_base + POPMARK
#define dORIGMARK I32 origmark = mark - stack_base
#define SETORIGMARK origmark = mark - stack_base
#define ORIGMARK (stack_base + origmark)
#define SPAGAIN sp = stack_sp
#define MSPAGAIN sp = stack_sp; mark = ORIGMARK
#define GETTARGETSTACKED targ = (op->op_flags & OPf_STACKED ? POPs : PAD_SV(op->op_targ))
#define dTARGETSTACKED SV * GETTARGETSTACKED
#define GETTARGET targ = PAD_SV(op->op_targ)
#define dTARGET SV * GETTARGET
#define GETATARGET targ = (op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(op->op_targ))
#define dATARGET SV * GETATARGET
#define dTARG SV *targ
#define NORMAL op->op_next
#define DIE return die
#define PUTBACK 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, na))
#define POPn (SvNVx(POPs))
#define POPi ((IV)SvIVx(POPs))
#define POPl ((long)SvIVx(POPs))
#define TOPs (*sp)
#define TOPp (SvPV(TOPs, na))
#define TOPn (SvNV(TOPs))
#define TOPi ((IV)SvIV(TOPs))
#define TOPl ((long)SvIV(TOPs))
/* Go to some pains in the rare event that we must extend the stack. */
#define EXTEND(p,n) STMT_START { if (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 (stack_max - p < (n)) { \
int markoff = mark - stack_base; \
sp = stack_grow(sp,p,(int) (n)); \
mark = 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, (double)(n)); PUSHTARG; } STMT_END
#define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); 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, (double)(n)); XPUSHTARG; } STMT_END
#define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } 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, (double)(n)); SETTARG; } STMT_END
#define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END
#ifdef OVERLOAD
#define SETsv(sv) STMT_START { sv_setsv(TARG, (sv)); SETTARG; } STMT_END
#endif /* OVERLOAD */
#define dTOPss SV *sv = TOPs
#define dPOPss SV *sv = POPs
#define dTOPnv double value = TOPn
#define dPOPnv double value = POPn
#define dTOPiv IV value = TOPi
#define dPOPiv IV value = POPi
#define dPOPPOPssrl SV *right = POPs; SV *left = POPs
#define dPOPPOPnnrl double right = POPn; double left = POPn
#define dPOPPOPiirl IV right = POPi; IV left = POPi
#define dPOPTOPssrl SV *right = POPs; SV *left = TOPs
#define dPOPTOPnnrl double right = POPn; double left = TOPn
#define dPOPTOPiirl IV right = POPi; IV left = TOPi
#define RETPUSHYES RETURNX(PUSHs(&sv_yes))
#define RETPUSHNO RETURNX(PUSHs(&sv_no))
#define RETPUSHUNDEF RETURNX(PUSHs(&sv_undef))
#define RETSETYES RETURNX(SETs(&sv_yes))
#define RETSETNO RETURNX(SETs(&sv_no))
#define RETSETUNDEF RETURNX(SETs(&sv_undef))
#define ARGTARG op->op_targ
#define MAXARG op->op_private
#define SWITCHSTACK(f,t) AvFILL(f) = sp - stack_base; \
stack_base = AvARRAY(t); \
stack_max = stack_base + AvMAX(t); \
sp = stack_sp = stack_base + AvFILL(t); \
stack = t;
#ifdef OVERLOAD
#define AMGf_noright 1
#define AMGf_noleft 2
#define AMGf_assign 4
#define AMGf_unary 8
#define tryAMAGICbinW(meth,assign,set) STMT_START { \
if (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,&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) STMT_START { \
if (amagic_generation) { \
SV* tmpsv; \
SV* arg= *(sp); \
if ((SvAMAGIC(arg))&&\
(tmpsv=AMG_CALLun(arg,meth))) {\
SPAGAIN; \
set(tmpsv); RETURN; } \
} \
} STMT_END
#define tryAMAGICun(meth) tryAMAGICunW(meth,SETsv)
#define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs)
#define opASSIGN (op->op_flags & OPf_STACKED)
/* newSVsv does not behave as advertised, so we copy missing
* information by hand */
#define RvDEEPCP(rv) STMT_START { SV* ref=SvRV(rv); \
if (SvREFCNT(ref)>1) { \
SvREFCNT_dec(ref); \
SvRV(rv)=AMG_CALLun(rv,copy); \
} } STMT_END
#else
#define tryAMAGICbin(a,b)
#define tryAMAGICbinSET(a,b)
#define tryAMAGICun(a)
#define tryAMAGICunSET(a)
#endif /* OVERLOAD */
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