/* pp.h
*
- * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999,
- * 2000, 2001, by Larry Wall and others
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+ * 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
STMT_START { \
if (++PL_markstack_ptr == PL_markstack_max) \
markstack_grow(); \
- *PL_markstack_ptr = (p) - PL_stack_base; \
+ *PL_markstack_ptr = (I32)((p) - PL_stack_base);\
} STMT_END
#define TOPMARK (*PL_markstack_ptr)
#define POPMARK (*PL_markstack_ptr--)
-#define dSP register SV **sp = PL_stack_sp
+#define dSP 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 dORIGMARK const I32 origmark = (I32)(mark - PL_stack_base)
#define ORIGMARK (PL_stack_base + origmark)
#define SPAGAIN sp = PL_stack_sp
#define NORMAL PL_op->op_next
#define DIE return Perl_die
-#define DIE_NULL return DieNull
/*
=for apidoc Ams||PUTBACK
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.
+Pops a string off the stack. Deprecated. New code should 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.
*/
#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 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 POPpbytex (SvPVbytex(POPs, n_a))
+#define POPpx (SvPVx_nolen(POPs))
+#define POPpconstx (SvPVx_nolen_const(POPs))
+#define POPpbytex (SvPVbytex_nolen(POPs))
#define POPn (SvNVx(POPs))
#define POPi ((IV)SvIVx(POPs))
#define POPu ((UV)SvUVx(POPs))
#define TOPm1s (*(sp-1))
#define TOPp1s (*(sp+1))
#define TOPp (SvPV(TOPs, PL_na)) /* deprecated */
-#define TOPpx (SvPV(TOPs, n_a))
+#define TOPpx (SvPV_nolen(TOPs))
#define TOPn (SvNV(TOPs))
#define TOPi ((IV)SvIV(TOPs))
#define TOPu ((UV)SvUV(TOPs))
return lists from XSUB's - see C<mXPUSHu> instead. See also C<PUSHu> and
C<mPUSHu>.
+=for apidoc Am|void|mPUSHs|SV* sv
+Push an SV onto the stack and mortalizes the SV. The stack must have room
+for this element. Does not use C<TARG>. See also C<PUSHs> and C<mXPUSHs>.
+
=for apidoc Am|void|PUSHmortal
Push a new mortal SV onto the stack. The stack must have room for this
-element. Does not handle 'set' magic. Does not use C<TARG>. See also
-C<PUSHs>, C<XPUSHmortal> and C<XPUSHs>.
+element. Does not use C<TARG>. See also C<PUSHs>, C<XPUSHmortal> and C<XPUSHs>.
=for apidoc Am|void|mPUSHp|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. Does
-
not use C<TARG>. See also C<PUSHp>, C<mXPUSHp> and C<XPUSHp>.
+The C<len> indicates the length of the string. Does not use C<TARG>.
+See also C<PUSHp>, C<mXPUSHp> and C<XPUSHp>.
=for apidoc Am|void|mPUSHn|NV nv
Push a double onto the stack. The stack must have room for this element.
-Handles 'set' magic. Does not use C<TARG>. See also C<PUSHn>, C<mXPUSHn>
-and C<XPUSHn>.
+Does not use C<TARG>. See also C<PUSHn>, C<mXPUSHn> and C<XPUSHn>.
=for apidoc Am|void|mPUSHi|IV iv
Push an integer onto the stack. The stack must have room for this element.
-Handles 'set' magic. Does not use C<TARG>. See also C<PUSHi>, C<mXPUSHi>
-and C<XPUSHi>.
+Does not use C<TARG>. See also C<PUSHi>, C<mXPUSHi> and C<XPUSHi>.
=for apidoc Am|void|mPUSHu|UV uv
Push an unsigned integer onto the stack. The stack must have room for this
-element. Handles 'set' magic. Does not use C<TARG>. See also C<PUSHu>,
-C<mXPUSHu> and C<XPUSHu>.
+element. Does not use C<TARG>. See also C<PUSHu>, C<mXPUSHu> and C<XPUSHu>.
+
+=for apidoc Am|void|mXPUSHs|SV* sv
+Push an SV onto the stack, extending the stack if necessary and mortalizes
+the SV. Does not use C<TARG>. See also C<XPUSHs> and C<mPUSHs>.
=for apidoc Am|void|XPUSHmortal
-Push a new mortal SV onto the stack, extending the stack if necessary. Does
-not handle 'set' magic. Does not use C<TARG>. See also C<XPUSHs>,
-C<PUSHmortal> and C<PUSHs>.
+Push a new mortal SV onto the stack, extending the stack if necessary.
+Does not use C<TARG>. See also C<XPUSHs>, C<PUSHmortal> and C<PUSHs>.
=for apidoc Am|void|mXPUSHp|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. Does not use
-C<
TARG>. See also C<XPUSHp>, C<mPUSHp> and C<PUSHp>.
+indicates the length of the string. Does not use C<TARG>. See also C<XPUSHp>,
+C<mPUSHp> and C<PUSHp>.
=for apidoc Am|void|mXPUSHn|NV nv
-Push a double onto the stack, extending the stack if necessary. Handles
-'set' magic. Does not use C<TARG>. See also C<XPUSHn>, C<mPUSHn> and
-C<PUSHn>.
+Push a double onto the stack, extending the stack if necessary.
+Does not use C<TARG>. See also C<XPUSHn>, C<mPUSHn> and C<PUSHn>.
=for apidoc Am|void|mXPUSHi|IV iv
-Push an integer onto the stack, extending the stack if necessary. Handles
-'set' magic. Does not use C<TARG>. See also C<XPUSHi>, C<mPUSHi> and
-C<PUSHi>.
+Push an integer onto the stack, extending the stack if necessary.
+Does not use C<TARG>. See also C<XPUSHi>, C<mPUSHi> and C<PUSHi>.
=for apidoc Am|void|mXPUSHu|UV uv
Push an unsigned integer onto the stack, extending the stack if necessary.
-Handles 'set' magic. Does not use C<TARG>. See also C<XPUSHu>, C<mPUSHu>
-and C<PUSHu>.
+Does not use C<TARG>. See also C<XPUSHu>, C<mPUSHu> and C<PUSHu>.
=cut
*/
} } STMT_END
/* Same thing, but update mark register too. */
-#define MEXTEND(p,n) STMT_START {if (PL_stack_max - p < (int)(n)) { \
- int markoff = mark - PL_stack_base; \
+#define MEXTEND(p,n) STMT_START {if (PL_stack_max - p < (int)(n)) { \
+ const int markoff = mark - PL_stack_base; \
sp = stack_grow(sp,p,(int) (n)); \
mark = PL_stack_base + markoff; \
} } 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 mPUSHs(s) PUSHs(sv_2mortal(s))
#define PUSHmortal PUSHs(sv_newmortal())
-#define mPUSHp(p,l) sv_setpvn_mg(PUSHmortal, (p), (l))
-#define mPUSHn(n) sv_setnv_mg(PUSHmortal, (NV)(n))
-#define mPUSHi(i) sv_setiv_mg(PUSHmortal, (IV)(i))
-#define mPUSHu(u) sv_setuv_mg(PUSHmortal, (UV)(u))
+#define mPUSHp(p,l) PUSHs(newSVpvn_flags((p), (l), SVs_TEMP))
+#define mPUSHn(n) sv_setnv(PUSHmortal, (NV)(n))
+#define mPUSHi(i) sv_setiv(PUSHmortal, (IV)(i))
+#define mPUSHu(u) sv_setuv(PUSHmortal, (UV)(u))
+#define mXPUSHs(s) XPUSHs(sv_2mortal(s))
#define XPUSHmortal XPUSHs(sv_newmortal())
-#define mXPUSHp(p,l) STMT_START { EXTEND(sp,1); sv_setpvn_mg(PUSHmortal, (p), (l)); } STMT_END
-#define mXPUSHn(n) STMT_START { EXTEND(sp,1); sv_setnv_mg(PUSHmortal, (NV)(n)); } STMT_END
-#define mXPUSHi(i) STMT_START { EXTEND(sp,1); sv_setiv_mg(PUSHmortal, (IV)(i)); } STMT_END
-#define mXPUSHu(u) STMT_START { EXTEND(sp,1); sv_setuv_mg(PUSHmortal, (UV)(u)); } STMT_END
+#define mXPUSHp(p,l) STMT_START { EXTEND(sp,1); mPUSHp((p), (l)); } STMT_END
+#define mXPUSHn(n) STMT_START { EXTEND(sp,1); sv_setnv(PUSHmortal, (NV)(n)); } STMT_END
+#define mXPUSHi(i) STMT_START { EXTEND(sp,1); sv_setiv(PUSHmortal, (IV)(i)); } STMT_END
+#define mXPUSHu(u) STMT_START { EXTEND(sp,1); sv_setuv(PUSHmortal, (UV)(u)); } STMT_END
#define SETs(s) (*sp = s)
#define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END
#define dPOPss SV *sv = POPs
#define dTOPnv NV value = TOPn
#define dPOPnv NV value = POPn
+#define dPOPnv_nomg NV value = (sp--, SvNV_nomg(TOPp1s))
#define dTOPiv IV value = TOPi
#define dPOPiv IV value = POPi
#define dTOPuv UV value = TOPu
IV right = POPi; \
SV *leftsv = CAT2(X,s); \
IV left = USE_LEFT(leftsv) ? SvIV(leftsv) : 0
+#define dPOPXiirl_ul_nomg(X) \
+ IV right = POPi; \
+ SV *leftsv = CAT2(X,s); \
+ IV left = USE_LEFT(leftsv) ? SvIV_nomg(leftsv) : 0
#define dPOPPOPssrl dPOPXssrl(POP)
#define dPOPPOPnnrl dPOPXnnrl(POP)
#define dPOPTOPssrl dPOPXssrl(TOP)
#define dPOPTOPnnrl dPOPXnnrl(TOP)
#define dPOPTOPnnrl_ul dPOPXnnrl_ul(TOP)
+#define dPOPTOPnnrl_nomg \
+ NV right = SvNV_nomg(TOPs); NV left = (sp--, SvNV_nomg(TOPs))
#define dPOPTOPiirl dPOPXiirl(TOP)
#define dPOPTOPiirl_ul dPOPXiirl_ul(TOP)
+#define dPOPTOPiirl_ul_nomg dPOPXiirl_ul_nomg(TOP)
+#define dPOPTOPiirl_nomg \
+ IV right = SvIV_nomg(TOPs); IV left = (sp--, SvIV_nomg(TOPs))
#define RETPUSHYES RETURNX(PUSHs(&PL_sv_yes))
#define RETPUSHNO RETURNX(PUSHs(&PL_sv_no))
#define AMGf_noleft 2
#define AMGf_assign 4
#define AMGf_unary 8
+#define AMGf_numeric 0x10 /* for Perl_try_amagic_bin */
+#define AMGf_set 0x20 /* for Perl_try_amagic_bin */
-#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, \
+
+/* do SvGETMAGIC on the stack args before checking for overload */
+
+#define tryAMAGICun_MG(method, flags) STMT_START { \
+ if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \
+ && Perl_try_amagic_un(aTHX_ method, flags)) \
+ return NORMAL; \
+ } STMT_END
+#define tryAMAGICbin_MG(method, flags) STMT_START { \
+ if ( ((SvFLAGS(TOPm1s)|SvFLAGS(TOPs)) & (SVf_ROK|SVs_GMG)) \
+ && Perl_try_amagic_bin(aTHX_ method, flags)) \
+ return NORMAL; \
+ } STMT_END
+
+/* these tryAMAGICun* tryAMAGICbin* macros are no longer used in core
+ * (except for tryAMAGICunDEREF*, tryAMAGICunTARGET),
+ * and are only here for backwards compatibility */
+
+#define tryAMAGICbinW_var(meth_enum,assign,set) STMT_START { \
+ SV* const left = *(sp-1); \
+ SV* const right = *(sp); \
+ if ((SvAMAGIC(left)||SvAMAGIC(right))) {\
+ SV * const tmpsv = amagic_call(left, \
right, \
- CAT2(meth,_amg), \
- (assign)? AMGf_assign: 0))) {\
- SPAGAIN; \
- (void)POPs; set(tmpsv); RETURN; } \
- } \
+ (meth_enum), \
+ (assign)? AMGf_assign: 0); \
+ if (tmpsv) { \
+ SPAGAIN; \
+ (void)POPs; set(tmpsv); RETURN; } \
+ } \
} STMT_END
-#define tryAMAGICbin(meth,assign) tryAMAGICbinW(meth,assign,SETsv)
+#define tryAMAGICbinW(meth,assign,set) \
+ tryAMAGICbinW_var(CAT2(meth,_amg),assign,set)
+
+#define tryAMAGICbin_var(meth_enum,assign) \
+ tryAMAGICbinW_var(meth_enum,assign,SETsv)
+#define tryAMAGICbin(meth,assign) \
+ tryAMAGICbin_var(CAT2(meth,_amg),assign)
+
#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 tryAMAGICbinSET_var(meth_enum,assign) \
+ tryAMAGICbinW_var(meth_enum,assign,SETs)
+
+#define AMG_CALLun_var(sv,meth_enum) amagic_call(sv,&PL_sv_undef, \
+ meth_enum,AMGf_noright | AMGf_unary)
+#define AMG_CALLun(sv,meth) AMG_CALLun_var(sv,CAT2(meth,_amg))
+
#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) { \
+#define tryAMAGICunW_var(meth_enum,set,shift,ret) STMT_START { \
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))) {\
+ (tmpsv=AMG_CALLun_var(arg,(meth_enum)))) {\
SPAGAIN; if (shift) sp += shift; \
set(tmpsv); ret; } \
- } \
} STMT_END
+#define tryAMAGICunW(meth,set,shift,ret) \
+ tryAMAGICunW_var(CAT2(meth,_amg),set,shift,ret)
#define FORCE_SETs(sv) STMT_START { sv_setsv(TARG, (sv)); SETTARG; } STMT_END
-#define tryAMAGICun(meth) tryAMAGICunW(meth,SETsvUN,0,RETURN)
+#define tryAMAGICun_var(meth_enum) tryAMAGICunW_var(meth_enum,SETsvUN,0,RETURN)
+#define tryAMAGICun(meth) tryAMAGICun_var(CAT2(meth,_amg))
+#define tryAMAGICunSET_var(meth_enum) tryAMAGICunW_var(meth_enum,SETs,0,RETURN)
#define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs,0,RETURN)
#define tryAMAGICunTARGET(meth, shift) \
STMT_START { dSP; sp--; /* get TARGET from below PL_stack_sp */ \
} STMT_END
#define tryAMAGICunDEREF(meth) tryAMAGICunW(meth,setAGAIN,0,(void)0)
+#define tryAMAGICunDEREF_var(meth_enum) \
+ tryAMAGICunW_var(meth_enum,setAGAIN,0,(void)0)
+
+/* this macro is obsolete and is only here for backwards compatibility */
+
+#define tryAMAGICftest(chr) \
+ STMT_START { \
+ assert(chr != '?'); \
+ SvGETMAGIC(TOPs); \
+ if ((PL_op->op_flags & OPf_KIDS) \
+ && SvAMAGIC(TOPs)) { \
+ const char tmpchr = (chr); \
+ SV * const tmpsv = amagic_call(TOPs, \
+ newSVpvn_flags(&tmpchr, 1, SVs_TEMP), \
+ ftest_amg, AMGf_unary); \
+ \
+ if (tmpsv) { \
+ const OP *next = PL_op->op_next; \
+ \
+ SPAGAIN; \
+ \
+ if (next->op_type >= OP_FTRREAD && \
+ next->op_type <= OP_FTBINARY && \
+ next->op_private & OPpFT_STACKED \
+ ) { \
+ if (SvTRUE(tmpsv)) \
+ /* leave the object alone */ \
+ RETURN; \
+ } \
+ \
+ SETs(tmpsv); \
+ RETURN; \
+ } \
+ } \
+ } STMT_END
+
#define opASSIGN (PL_op->op_flags & OPf_STACKED)
#define SETsv(sv) STMT_START { \
/* 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) { \
- SvRV(rv)=AMG_CALLun(rv,copy); \
+#define RvDEEPCP(rv) STMT_START { SV* tmpRef=SvRV(rv); SV* rv_copy; \
+ if (SvREFCNT(tmpRef)>1 && (rv_copy = AMG_CALLun(rv,copy))) { \
+ SvRV_set(rv, rv_copy); \
+ SvSETMAGIC(rv); \
SvREFCNT_dec(tmpRef); \
} } STMT_END
=cut */
#define LVRET ((PL_op->op_private & OPpMAYBE_LVSUB) && is_lvalue_sub())
+
+#define SvCANEXISTDELETE(sv) \
+ (!SvRMAGICAL(sv) \
+ || ((mg = mg_find((const SV *) sv, PERL_MAGIC_tied)) \
+ && (stash = SvSTASH(SvRV(SvTIED_obj(MUTABLE_SV(sv), mg)))) \
+ && gv_fetchmethod_autoload(stash, "EXISTS", TRUE) \
+ && gv_fetchmethod_autoload(stash, "DELETE", TRUE) \
+ ) \
+ )
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
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