-/***********************************************************
+/* pp.h
*
- * $Header: /usr/src/local/lwall/perl5/RCS/pp.h,v 4.1 92/08/07 18:26:20 lwall Exp Locker: lwall $
+ * Copyright (c) 1991-2001, Larry Wall
*
- * Description:
- * Push/Pop code defs.
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
*
- * Standards:
- *
- * Created:
- * Mon Jun 15 16:47:20 1992
- *
- * Author:
- * Larry Wall <lwall@netlabs.com>
- *
- * $Log: pp.h,v $
- * Revision 4.1 92/08/07 18:26:20 lwall
- *
- *
- **********************************************************/
+ */
+#ifdef USE_THREADS
+#define ARGS thr
+#define dARGS struct perl_thread *thr;
+#else
#define ARGS
-#define ARGSproto void
#define dARGS
-#define PP(s) OP* s(ARGS) dARGS
+#endif /* USE_THREADS */
+
+#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 ms||djSP
+
+Declare Just C<SP>. This is actually identical to C<dSP>, and declares
+a local copy of perl's stack pointer, available via the C<SP> macro.
+See C<SP>. (Available for backward source code compatibility with the
+old (Perl 5.005) thread model.)
+
+=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 */
+
+#undef SP /* Solaris 2.7 i386 has this in /usr/include/sys/reg.h */
#define SP sp
#define MARK mark
#define TARG targ
-#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 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 SPAGAIN sp = stack_sp
-#define MSPAGAIN sp = stack_sp; mark = ORIGMARK
+#define dSP register SV **sp = PL_stack_sp
+#define djSP dSP
+#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 GETTARGETSTACKED targ = (op->op_flags & OPf_STACKED ? POPs : PAD_SV(op->op_targ))
+#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(op->op_targ)
+#define GETTARGET targ = PAD_SV(PL_op->op_targ)
#define dTARGET SV * GETTARGET
-#define GETATARGET targ = (op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(op->op_targ))
+#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 GETavn(a,g,st) \
- a = sv_2av(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 1)
-#define GEThvn(h,g,st) \
- h = sv_2hv(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 1)
-#define GETav(a,g,st) \
- a = sv_2av(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 0)
-#define GEThv(h,g,st) \
- h = sv_2hv(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 0)
-#define GETcv(r,g,st) \
- r = sv_2cv(POPs, &st, &g, 0)
-
-#define NORMAL op->op_next
-#define DIE return die
-#define PROP if (dying) return die("%s", dying);
-
-#define PUTBACK stack_sp = sp
+#define NORMAL PL_op->op_next
+#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. Deprecated. New code should provide
+a STRLEN n_a and use POPpx.
+
+=for apidoc Amn|char*|POPpx
+Pops a string off the stack.
+Requires a variable STRLEN n_a in scope.
+
+=for apidoc Amn|char*|POPpbytex
+Pops a string off the stack which must consist of bytes i.e. characters < 256.
+Requires a variable STRLEN n_a in scope.
+
+=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
#define RETURNOP(o) return PUTBACK, o
#define RETURNX(x) return x, PUTBACK, NORMAL
#define POPs (*sp--)
-#define POPp (SvPVx(POPs, na))
+#define POPp (SvPVx(POPs, PL_na)) /* deprecated */
+#define POPpx (SvPVx(POPs, n_a))
+#define POPpbytex (SvPVbytex(POPs, n_a))
#define POPn (SvNVx(POPs))
-#define POPi ((int)SvIVx(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, na))
+#define TOPm1s (*(sp-1))
+#define TOPp1s (*(sp+1))
+#define TOPp (SvPV(TOPs, PL_na)) /* deprecated */
+#define TOPpx (SvPV(TOPs, n_a))
#define TOPn (SvNV(TOPs))
-#define TOPi ((int)SvIV(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) do { if (stack_max - p < (n)) { \
- av_fill(stack, (p - stack_base) + (n) + 128); \
- sp = AvARRAY(stack) + (sp - stack_base); \
- stack_base = AvARRAY(stack); \
- stack_max = stack_base + AvMAX(stack) - 1; \
- } } while (0)
+
+/*
+=for apidoc Am|void|EXTEND|SP|int nitems
+Used to extend the argument stack for an XSUB's return values. Once
+used, guarantees 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
+
/* Same thing, but update mark register too. */
-#define MEXTEND(p,n) do {if (stack_max - p < (n)) { \
- av_fill(stack, (p - stack_base) + (n) + 128); \
- sp = AvARRAY(stack) + (sp - stack_base); \
- mark = AvARRAY(stack) + (mark - stack_base); \
- stack_base = AvARRAY(stack); \
- stack_max = stack_base + AvMAX(stack) - 1; \
- } } while (0)
+#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 do { SvSETMAGIC(TARG); PUSHs(TARG); } while (0)
-#define PUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); PUSHTARG; } while (0)
-#define PUSHn(n) do { sv_setnv(TARG, (n)); PUSHTARG; } while (0)
-#define PUSHi(i) do { sv_setiv(TARG, (i)); PUSHTARG; } while (0)
-
-#define XPUSHs(s) do { EXTEND(sp,1); (*++sp = (s)); } while (0)
-#define XPUSHTARG do { SvSETMAGIC(TARG); XPUSHs(TARG); } while (0)
-#define XPUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } while (0)
-#define XPUSHn(n) do { sv_setnv(TARG, (n)); XPUSHTARG; } while (0)
-#define XPUSHi(i) do { sv_setiv(TARG, (i)); XPUSHTARG; } while (0)
-
-#define MXPUSHs(s) do { MEXTEND(sp,1); (*++sp = (s)); } while (0)
-#define MXPUSHTARG do { SvSETMAGIC(TARG); XPUSHs(TARG); } while (0)
-#define MXPUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } while (0)
-#define MXPUSHn(n) do { sv_setnv(TARG, (n)); XPUSHTARG; } while (0)
-#define MXPUSHi(i) do { sv_setiv(TARG, (i)); XPUSHTARG; } while (0)
+#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 do { SvSETMAGIC(TARG); SETs(TARG); } while (0)
-#define SETp(p,l) do { sv_setpvn(TARG, (p), (l)); SETTARG; } while (0)
-#define SETn(n) do { sv_setnv(TARG, (n)); SETTARG; } while (0)
-#define SETi(i) do { sv_setiv(TARG, (i)); SETTARG; } while (0)
+#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 double value = TOPn
-#define dPOPnv double value = POPn
-#define dTOPiv I32 value = TOPi
-#define dPOPiv I32 value = POPi
-
-#define dPOPPOPssrl SV *rstr = POPs; SV *lstr = POPs
-#define dPOPPOPnnrl double right = POPn; double left = POPn
-#define dPOPPOPiirl I32 right = POPi; I32 left = POPi
-
-#define dPOPTOPssrl SV *rstr = POPs; SV *lstr = TOPs
-#define dPOPTOPnnrl double right = POPn; double left = TOPn
-#define dPOPTOPiirl I32 right = POPi; I32 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_base + AvFILL(t); \
- stack = t;
-
-/* XXX need to diffentiate on marked operators? */
-#define FETCH_GV(s) PUTBACK, s = fetch_gv(op,1), SPAGAIN
-#define FETCH_GV1(s) PUTBACK, s = fetch_gv(op,1), SPAGAIN
-#define FETCH_GV2(s) PUTBACK, s = fetch_gv(op,2), SPAGAIN
-#define FETCH_IO(s) PUTBACK, s = fetch_io(op,1), SPAGAIN
-#define FETCH_IO1(s) PUTBACK, s = fetch_io(op,1), SPAGAIN
-#define FETCH_IO2(s) PUTBACK, s = fetch_io(op,2), SPAGAIN
-
-#define ENTER push_scope()
-#define LEAVE pop_scope()
-
-#define SAVEINT(i) save_int((int*)(&i));
-#define SAVEI32(i) save_int((I32*)(&i));
-#define SAVELONG(l) save_int((long*)(&l));
-#define SAVESPTR(s) save_sptr((SV**)(&s))
-#define SAVETMPS save_int(&tmps_floor), tmps_floor = tmps_ix
-#define SAVEFREESV(s) save_freesv((SV*)(s))
-#define SAVEFREEOP(o) save_freeop((OP*)(o))
-#define SAVEFREEPV(p) save_freepv((char*)(p))
-#define SAVECLEARSV(sv) save_clearsv((SV**)(&sv))
-#define SAVEDELETE(h,k,l) save_delete((HV*)(h), (char*)(k), (I32)l)
+#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]; \
+ if(0) goto am_again; /* shut up unused warning */ \
+ 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 = ref; \
+ if (!SvROK(ref)) \
+ Perl_croak(aTHX_ "Overloaded dereference did not return a reference"); \
+ if (ref != arg && SvRV(ref) != SvRV(arg)) { \
+ arg = ref; \
+ 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
+
+/*
+=for apidoc mU||LVRET
+True if this op will be the return value of an lvalue subroutine
+
+=cut */
+#define LVRET ((PL_op->op_private & OPpMAYBE_LVSUB) && is_lvalue_sub())
https://perl5.git.perl.org / perl5.git / blobdiff