diff options
Diffstat (limited to 'contrib/perl5/pp.h')
| -rw-r--r-- | contrib/perl5/pp.h | 213 |
1 files changed, 173 insertions, 40 deletions
diff --git a/contrib/perl5/pp.h b/contrib/perl5/pp.h index c0cebcc..bdc0b1a 100644 --- a/contrib/perl5/pp.h +++ b/contrib/perl5/pp.h @@ -1,6 +1,6 @@ /* pp.h * - * Copyright (c) 1991-1999, Larry Wall + * Copyright (c) 1991-2000, 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. @@ -14,11 +14,40 @@ #define ARGS #define dARGS #endif /* USE_THREADS */ -#ifdef PERL_OBJECT -#define PP(s) OP * CPerlObj::s(ARGSproto) -#else -#define PP(s) OP * s(ARGSproto) -#endif + +#define PP(s) OP * Perl_##s(pTHX) + +/* +=for apidoc AmU||SP +Stack pointer. This is usually handled by C<xsubpp>. See C<dSP> and +C<SPAGAIN>. + +=for apidoc AmU||MARK +Stack marker variable for the XSUB. See C<dMARK>. + +=for apidoc Ams||PUSHMARK +Opening bracket for arguments on a callback. See C<PUTBACK> and +L<perlcall>. + +=for apidoc Ams||dSP +Declares a local copy of perl's stack pointer for the XSUB, available via +the C<SP> macro. See C<SP>. + +=for apidoc Ams||dMARK +Declare a stack marker variable, C<mark>, for the XSUB. See C<MARK> and +C<dORIGMARK>. + +=for apidoc Ams||dORIGMARK +Saves the original stack mark for the XSUB. See C<ORIGMARK>. + +=for apidoc AmU||ORIGMARK +The original stack mark for the XSUB. See C<dORIGMARK>. + +=for apidoc Ams||SPAGAIN +Refetch the stack pointer. Used after a callback. See L<perlcall>. + +=cut +*/ #define SP sp #define MARK mark @@ -53,7 +82,30 @@ #define dTARG SV *targ #define NORMAL PL_op->op_next -#define DIE return die +#define DIE return Perl_die + +/* +=for apidoc Ams||PUTBACK +Closing bracket for XSUB arguments. This is usually handled by C<xsubpp>. +See C<PUSHMARK> and L<perlcall> for other uses. + +=for apidoc Amn|SV*|POPs +Pops an SV off the stack. + +=for apidoc Amn|char*|POPp +Pops a string off the stack. + +=for apidoc Amn|NV|POPn +Pops a double off the stack. + +=for apidoc Amn|IV|POPi +Pops an integer off the stack. + +=for apidoc Amn|long|POPl +Pops a long off the stack. + +=cut +*/ #define PUTBACK PL_stack_sp = sp #define RETURN return PUTBACK, NORMAL @@ -67,6 +119,11 @@ #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 */ @@ -75,8 +132,65 @@ #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. */ + +/* +=for apidoc Am|void|EXTEND|SP|int nitems +Used to extend the argument stack for an XSUB's return values. Once +used, guarrantees that there is room for at least C<nitems> to be pushed +onto the stack. + +=for apidoc Am|void|PUSHs|SV* sv +Push an SV onto the stack. The stack must have room for this element. +Does not handle 'set' magic. See C<XPUSHs>. + +=for apidoc Am|void|PUSHp|char* str|STRLEN len +Push a string onto the stack. The stack must have room for this element. +The C<len> indicates the length of the string. Handles 'set' magic. See +C<XPUSHp>. + +=for apidoc Am|void|PUSHn|NV nv +Push a double onto the stack. The stack must have room for this element. +Handles 'set' magic. See C<XPUSHn>. + +=for apidoc Am|void|PUSHi|IV iv +Push an integer onto the stack. The stack must have room for this element. +Handles 'set' magic. See C<XPUSHi>. + +=for apidoc Am|void|PUSHu|UV uv +Push an unsigned integer onto the stack. The stack must have room for this +element. See C<XPUSHu>. + +=for apidoc Am|void|XPUSHs|SV* sv +Push an SV onto the stack, extending the stack if necessary. Does not +handle 'set' magic. See C<PUSHs>. + +=for apidoc Am|void|XPUSHp|char* str|STRLEN len +Push a string onto the stack, extending the stack if necessary. The C<len> +indicates the length of the string. Handles 'set' magic. See +C<PUSHp>. + +=for apidoc Am|void|XPUSHn|NV nv +Push a double onto the stack, extending the stack if necessary. Handles +'set' magic. See C<PUSHn>. + +=for apidoc Am|void|XPUSHi|IV iv +Push an integer onto the stack, extending the stack if necessary. Handles +'set' magic. See C<PUSHi>. + +=for apidoc Am|void|XPUSHu|UV uv +Push an unsigned integer onto the stack, extending the stack if necessary. +See C<PUSHu>. + +=cut +*/ + #define EXTEND(p,n) STMT_START { if (PL_stack_max - p < (n)) { \ sp = stack_grow(sp,p, (int) (n)); \ } } STMT_END @@ -91,43 +205,50 @@ #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 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, (double)(n)); 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, (double)(n)); 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 double value = TOPn -#define dPOPnv double value = POPn +#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) double right = POPn; double left = CAT2(X,n) +#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) \ - double right = POPn; \ + NV right = POPn; \ SV *leftsv = CAT2(X,s); \ - double left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0 + NV left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0 #define dPOPXiirl_ul(X) \ IV right = POPi; \ SV *leftsv = CAT2(X,s); \ @@ -154,24 +275,24 @@ #define RETSETUNDEF RETURNX(SETs(&PL_sv_undef)) #define ARGTARG PL_op->op_targ -#define MAXARG PL_op->op_private + + /* See OPpTARGET_MY: */ +#define MAXARG (PL_op->op_private & 15) #define SWITCHSTACK(f,t) \ STMT_START { \ - AvFILLp(f) = sp - PL_stack_base; \ + AvFILLp(f) = sp - PL_stack_base; \ PL_stack_base = AvARRAY(t); \ - PL_stack_max = PL_stack_base + AvMAX(t); \ + PL_stack_max = PL_stack_base + AvMAX(t); \ sp = PL_stack_sp = PL_stack_base + AvFILLp(t); \ - PL_curstack = t; \ + PL_curstack = t; \ } STMT_END #define EXTEND_MORTAL(n) \ - STMT_START { \ - if (PL_tmps_ix + (n) >= PL_tmps_max) \ - Renew(PL_tmps_stack, PL_tmps_max = PL_tmps_ix + (n) + 1, SV*); \ - } STMT_END - -#ifdef OVERLOAD + STMT_START { \ + if (PL_tmps_ix + (n) >= PL_tmps_max) \ + tmps_grow(n); \ + } STMT_END #define AMGf_noright 1 #define AMGf_noleft 2 @@ -200,23 +321,43 @@ #define AMG_CALLbinL(left,right,meth) \ amagic_call(left,right,CAT2(meth,_amg),AMGf_noright) -#define tryAMAGICunW(meth,set) STMT_START { \ +#define tryAMAGICunW(meth,set,shift,ret) STMT_START { \ if (PL_amagic_generation) { \ SV* tmpsv; \ - SV* arg= *(sp); \ + SV* arg= sp[shift]; \ + am_again: \ if ((SvAMAGIC(arg))&&\ (tmpsv=AMG_CALLun(arg,meth))) {\ - SPAGAIN; \ - set(tmpsv); RETURN; } \ + SPAGAIN; if (shift) sp += shift; \ + set(tmpsv); ret; } \ } \ } STMT_END -#define tryAMAGICun tryAMAGICunSET -#define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs) +#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) { sv_setsv(TARG, (sv)); SETTARG; } \ + 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 @@ -229,11 +370,3 @@ SvREFCNT_dec(tmpRef); \ 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 */ |
