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a0d0e21e 1/* pp.h
79072805 2 *
1129b882
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3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
79072805 5 *
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LW
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
79072805 8 *
a0d0e21e 9 */
79072805 10
cea2e8a9 11#define PP(s) OP * Perl_##s(pTHX)
79072805 12
954c1994 13/*
ccfc67b7
JH
14=head1 Stack Manipulation Macros
15
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16=for apidoc AmU||SP
17Stack pointer. This is usually handled by C<xsubpp>. See C<dSP> and
18C<SPAGAIN>.
19
20=for apidoc AmU||MARK
21Stack marker variable for the XSUB. See C<dMARK>.
22
c578083c 23=for apidoc Am|void|PUSHMARK|SP
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24Opening bracket for arguments on a callback. See C<PUTBACK> and
25L<perlcall>.
26
27=for apidoc Ams||dSP
28Declares a local copy of perl's stack pointer for the XSUB, available via
29the C<SP> macro. See C<SP>.
30
fac3506f
MS
31=for apidoc ms||djSP
32
33Declare Just C<SP>. This is actually identical to C<dSP>, and declares
34a local copy of perl's stack pointer, available via the C<SP> macro.
35See C<SP>. (Available for backward source code compatibility with the
36old (Perl 5.005) thread model.)
37
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38=for apidoc Ams||dMARK
39Declare a stack marker variable, C<mark>, for the XSUB. See C<MARK> and
40C<dORIGMARK>.
41
42=for apidoc Ams||dORIGMARK
43Saves the original stack mark for the XSUB. See C<ORIGMARK>.
44
45=for apidoc AmU||ORIGMARK
46The original stack mark for the XSUB. See C<dORIGMARK>.
47
48=for apidoc Ams||SPAGAIN
49Refetch the stack pointer. Used after a callback. See L<perlcall>.
50
fac3506f 51=cut */
954c1994 52
ac634a9a 53#undef SP /* Solaris 2.7 i386 has this in /usr/include/sys/reg.h */
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54#define SP sp
55#define MARK mark
56#define TARG targ
57
16e7e110
TH
58#define PUSHMARK(p) \
59 STMT_START { \
60 if (++PL_markstack_ptr == PL_markstack_max) \
61 markstack_grow(); \
514696af 62 *PL_markstack_ptr = (I32)((p) - PL_stack_base);\
16e7e110 63 } STMT_END
a0d0e21e 64
3280af22
NIS
65#define TOPMARK (*PL_markstack_ptr)
66#define POPMARK (*PL_markstack_ptr--)
a0d0e21e 67
bc0d193f 68#define dSP SV **sp = PL_stack_sp
39644a26 69#define djSP dSP
5aaab254 70#define dMARK SV **mark = PL_stack_base + POPMARK
514696af 71#define dORIGMARK const I32 origmark = (I32)(mark - PL_stack_base)
3280af22 72#define ORIGMARK (PL_stack_base + origmark)
79072805 73
3280af22 74#define SPAGAIN sp = PL_stack_sp
16e7e110 75#define MSPAGAIN STMT_START { sp = PL_stack_sp; mark = ORIGMARK; } STMT_END
79072805 76
533c011a 77#define GETTARGETSTACKED targ = (PL_op->op_flags & OPf_STACKED ? POPs : PAD_SV(PL_op->op_targ))
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78#define dTARGETSTACKED SV * GETTARGETSTACKED
79
533c011a 80#define GETTARGET targ = PAD_SV(PL_op->op_targ)
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81#define dTARGET SV * GETTARGET
82
533c011a 83#define GETATARGET targ = (PL_op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(PL_op->op_targ))
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84#define dATARGET SV * GETATARGET
85
86#define dTARG SV *targ
87
533c011a 88#define NORMAL PL_op->op_next
9fed9930 89#define DIE return Perl_die
79072805 90
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91/*
92=for apidoc Ams||PUTBACK
93Closing bracket for XSUB arguments. This is usually handled by C<xsubpp>.
94See C<PUSHMARK> and L<perlcall> for other uses.
95
96=for apidoc Amn|SV*|POPs
97Pops an SV off the stack.
98
99=for apidoc Amn|char*|POPp
4b7c0884 100Pops a string off the stack.
595ae481
NIS
101
102=for apidoc Amn|char*|POPpx
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103Pops a string off the stack. Identical to POPp. There are two names for
104historical reasons.
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NIS
105
106=for apidoc Amn|char*|POPpbytex
107Pops a string off the stack which must consist of bytes i.e. characters < 256.
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108
109=for apidoc Amn|NV|POPn
110Pops a double off the stack.
111
112=for apidoc Amn|IV|POPi
113Pops an integer off the stack.
114
115=for apidoc Amn|long|POPl
116Pops a long off the stack.
117
118=cut
119*/
120
3280af22 121#define PUTBACK PL_stack_sp = sp
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122#define RETURN return (PUTBACK, NORMAL)
123#define RETURNOP(o) return (PUTBACK, o)
124#define RETURNX(x) return (x, PUTBACK, NORMAL)
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125
126#define POPs (*sp--)
4b7c0884 127#define POPp POPpx
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128#define POPpx (SvPVx_nolen(POPs))
129#define POPpconstx (SvPVx_nolen_const(POPs))
130#define POPpbytex (SvPVbytex_nolen(POPs))
463ee0b2 131#define POPn (SvNVx(POPs))
a0d0e21e 132#define POPi ((IV)SvIVx(POPs))
ff68c719 133#define POPu ((UV)SvUVx(POPs))
463ee0b2 134#define POPl ((long)SvIVx(POPs))
d9b3e12d 135#define POPul ((unsigned long)SvIVx(POPs))
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136
137#define TOPs (*sp)
56370e9f 138#define TOPm1s (*(sp-1))
7dca457a 139#define TOPp1s (*(sp+1))
4b7c0884 140#define TOPp TOPpx
95fad918 141#define TOPpx (SvPV_nolen(TOPs))
463ee0b2 142#define TOPn (SvNV(TOPs))
a0d0e21e 143#define TOPi ((IV)SvIV(TOPs))
ff68c719 144#define TOPu ((UV)SvUV(TOPs))
463ee0b2 145#define TOPl ((long)SvIV(TOPs))
c5a0f51a 146#define TOPul ((unsigned long)SvUV(TOPs))
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147
148/* Go to some pains in the rare event that we must extend the stack. */
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149
150/*
fc16c392 151=for apidoc Am|void|EXTEND|SP|SSize_t nitems
954c1994 152Used to extend the argument stack for an XSUB's return values. Once
4375e838 153used, guarantees that there is room for at least C<nitems> to be pushed
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154onto the stack.
155
156=for apidoc Am|void|PUSHs|SV* sv
aacdac46 157Push an SV onto the stack. The stack must have room for this element.
d82b684c
SH
158Does not handle 'set' magic. Does not use C<TARG>. See also C<PUSHmortal>,
159C<XPUSHs> and C<XPUSHmortal>.
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160
161=for apidoc Am|void|PUSHp|char* str|STRLEN len
162Push a string onto the stack. The stack must have room for this element.
d82b684c
SH
163The C<len> indicates the length of the string. Handles 'set' magic. Uses
164C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to declare it. Do not
165call multiple C<TARG>-oriented macros to return lists from XSUB's - see
166C<mPUSHp> instead. See also C<XPUSHp> and C<mXPUSHp>.
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167
168=for apidoc Am|void|PUSHn|NV nv
169Push a double onto the stack. The stack must have room for this element.
d82b684c
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170Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
171called to declare it. Do not call multiple C<TARG>-oriented macros to
172return lists from XSUB's - see C<mPUSHn> instead. See also C<XPUSHn> and
173C<mXPUSHn>.
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174
175=for apidoc Am|void|PUSHi|IV iv
176Push an integer onto the stack. The stack must have room for this element.
d82b684c
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177Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
178called to declare it. Do not call multiple C<TARG>-oriented macros to
179return lists from XSUB's - see C<mPUSHi> instead. See also C<XPUSHi> and
180C<mXPUSHi>.
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181
182=for apidoc Am|void|PUSHu|UV uv
183Push an unsigned integer onto the stack. The stack must have room for this
d82b684c
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184element. Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG>
185should be called to declare it. Do not call multiple C<TARG>-oriented
186macros to return lists from XSUB's - see C<mPUSHu> instead. See also
187C<XPUSHu> and C<mXPUSHu>.
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188
189=for apidoc Am|void|XPUSHs|SV* sv
190Push an SV onto the stack, extending the stack if necessary. Does not
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191handle 'set' magic. Does not use C<TARG>. See also C<XPUSHmortal>,
192C<PUSHs> and C<PUSHmortal>.
954c1994
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193
194=for apidoc Am|void|XPUSHp|char* str|STRLEN len
195Push a string onto the stack, extending the stack if necessary. The C<len>
d82b684c
SH
196indicates the length of the string. Handles 'set' magic. Uses C<TARG>, so
197C<dTARGET> or C<dXSTARG> should be called to declare it. Do not call
198multiple C<TARG>-oriented macros to return lists from XSUB's - see
199C<mXPUSHp> instead. See also C<PUSHp> and C<mPUSHp>.
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200
201=for apidoc Am|void|XPUSHn|NV nv
202Push a double onto the stack, extending the stack if necessary. Handles
d82b684c
SH
203'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to
204declare it. Do not call multiple C<TARG>-oriented macros to return lists
205from XSUB's - see C<mXPUSHn> instead. See also C<PUSHn> and C<mPUSHn>.
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206
207=for apidoc Am|void|XPUSHi|IV iv
208Push an integer onto the stack, extending the stack if necessary. Handles
d82b684c
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209'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to
210declare it. Do not call multiple C<TARG>-oriented macros to return lists
211from XSUB's - see C<mXPUSHi> instead. See also C<PUSHi> and C<mPUSHi>.
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212
213=for apidoc Am|void|XPUSHu|UV uv
aacdac46 214Push an unsigned integer onto the stack, extending the stack if necessary.
d82b684c
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215Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
216called to declare it. Do not call multiple C<TARG>-oriented macros to
217return lists from XSUB's - see C<mXPUSHu> instead. See also C<PUSHu> and
218C<mPUSHu>.
219
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MHM
220=for apidoc Am|void|mPUSHs|SV* sv
221Push an SV onto the stack and mortalizes the SV. The stack must have room
121b7712 222for this element. Does not use C<TARG>. See also C<PUSHs> and C<mXPUSHs>.
6e449a3a 223
d82b684c
SH
224=for apidoc Am|void|PUSHmortal
225Push a new mortal SV onto the stack. The stack must have room for this
121b7712 226element. Does not use C<TARG>. See also C<PUSHs>, C<XPUSHmortal> and C<XPUSHs>.
d82b684c
SH
227
228=for apidoc Am|void|mPUSHp|char* str|STRLEN len
229Push a string onto the stack. The stack must have room for this element.
121b7712
MHM
230The C<len> indicates the length of the string. Does not use C<TARG>.
231See also C<PUSHp>, C<mXPUSHp> and C<XPUSHp>.
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232
233=for apidoc Am|void|mPUSHn|NV nv
234Push a double onto the stack. The stack must have room for this element.
121b7712 235Does not use C<TARG>. See also C<PUSHn>, C<mXPUSHn> and C<XPUSHn>.
d82b684c
SH
236
237=for apidoc Am|void|mPUSHi|IV iv
238Push an integer onto the stack. The stack must have room for this element.
121b7712 239Does not use C<TARG>. See also C<PUSHi>, C<mXPUSHi> and C<XPUSHi>.
d82b684c
SH
240
241=for apidoc Am|void|mPUSHu|UV uv
242Push an unsigned integer onto the stack. The stack must have room for this
121b7712 243element. Does not use C<TARG>. See also C<PUSHu>, C<mXPUSHu> and C<XPUSHu>.
d82b684c 244
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MHM
245=for apidoc Am|void|mXPUSHs|SV* sv
246Push an SV onto the stack, extending the stack if necessary and mortalizes
121b7712 247the SV. Does not use C<TARG>. See also C<XPUSHs> and C<mPUSHs>.
6e449a3a 248
d82b684c 249=for apidoc Am|void|XPUSHmortal
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MHM
250Push a new mortal SV onto the stack, extending the stack if necessary.
251Does not use C<TARG>. See also C<XPUSHs>, C<PUSHmortal> and C<PUSHs>.
d82b684c
SH
252
253=for apidoc Am|void|mXPUSHp|char* str|STRLEN len
254Push a string onto the stack, extending the stack if necessary. The C<len>
121b7712
MHM
255indicates the length of the string. Does not use C<TARG>. See also C<XPUSHp>,
256C<mPUSHp> and C<PUSHp>.
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SH
257
258=for apidoc Am|void|mXPUSHn|NV nv
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259Push a double onto the stack, extending the stack if necessary.
260Does not use C<TARG>. See also C<XPUSHn>, C<mPUSHn> and C<PUSHn>.
d82b684c
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261
262=for apidoc Am|void|mXPUSHi|IV iv
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263Push an integer onto the stack, extending the stack if necessary.
264Does not use C<TARG>. See also C<XPUSHi>, C<mPUSHi> and C<PUSHi>.
d82b684c
SH
265
266=for apidoc Am|void|mXPUSHu|UV uv
267Push an unsigned integer onto the stack, extending the stack if necessary.
121b7712 268Does not use C<TARG>. See also C<XPUSHu>, C<mPUSHu> and C<PUSHu>.
954c1994
GS
269
270=cut
271*/
272
fc16c392
FC
273#define EXTEND(p,n) (void)(UNLIKELY(PL_stack_max - p < (SSize_t)(n)) && \
274 (sp = stack_grow(sp,p, (SSize_t) (n))))
a0d0e21e 275
79072805 276/* Same thing, but update mark register too. */
2439e033
SM
277#define MEXTEND(p,n) STMT_START {if (UNLIKELY(PL_stack_max - p < (int)(n))) {\
278 const int markoff = mark - PL_stack_base; \
fc16c392 279 sp = stack_grow(sp,p,(SSize_t) (n)); \
2439e033
SM
280 mark = PL_stack_base + markoff; \
281 } } STMT_END
79072805
LW
282
283#define PUSHs(s) (*++sp = (s))
86547924
PP
284#define PUSHTARG STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END
285#define PUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END
65202027 286#define PUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); PUSHTARG; } STMT_END
86547924 287#define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END
55497cff 288#define PUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END
79072805 289
8d7906e1 290#define XPUSHs(s) (EXTEND(sp,1), *++sp = (s))
86547924
PP
291#define XPUSHTARG STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END
292#define XPUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END
65202027 293#define XPUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); XPUSHTARG; } STMT_END
86547924 294#define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END
55497cff 295#define XPUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END
b162f9ea 296#define XPUSHundef STMT_START { SvOK_off(TARG); XPUSHs(TARG); } STMT_END
79072805 297
6e449a3a 298#define mPUSHs(s) PUSHs(sv_2mortal(s))
2cc7004b 299#define PUSHmortal PUSHs(sv_newmortal())
8f14ea01 300#define mPUSHp(p,l) PUSHs(newSVpvn_flags((p), (l), SVs_TEMP))
121b7712
MHM
301#define mPUSHn(n) sv_setnv(PUSHmortal, (NV)(n))
302#define mPUSHi(i) sv_setiv(PUSHmortal, (IV)(i))
303#define mPUSHu(u) sv_setuv(PUSHmortal, (UV)(u))
2cc7004b 304
6e449a3a 305#define mXPUSHs(s) XPUSHs(sv_2mortal(s))
2cc7004b 306#define XPUSHmortal XPUSHs(sv_newmortal())
8f14ea01 307#define mXPUSHp(p,l) STMT_START { EXTEND(sp,1); mPUSHp((p), (l)); } STMT_END
121b7712
MHM
308#define mXPUSHn(n) STMT_START { EXTEND(sp,1); sv_setnv(PUSHmortal, (NV)(n)); } STMT_END
309#define mXPUSHi(i) STMT_START { EXTEND(sp,1); sv_setiv(PUSHmortal, (IV)(i)); } STMT_END
310#define mXPUSHu(u) STMT_START { EXTEND(sp,1); sv_setuv(PUSHmortal, (UV)(u)); } STMT_END
d82b684c 311
79072805 312#define SETs(s) (*sp = s)
86547924
PP
313#define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END
314#define SETp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END
65202027 315#define SETn(n) STMT_START { sv_setnv(TARG, (NV)(n)); SETTARG; } STMT_END
86547924 316#define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END
55497cff 317#define SETu(u) STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END
a0d0e21e 318
79072805
LW
319#define dTOPss SV *sv = TOPs
320#define dPOPss SV *sv = POPs
65202027
DS
321#define dTOPnv NV value = TOPn
322#define dPOPnv NV value = POPn
6f1401dc 323#define dPOPnv_nomg NV value = (sp--, SvNV_nomg(TOPp1s))
a0d0e21e
LW
324#define dTOPiv IV value = TOPi
325#define dPOPiv IV value = POPi
55497cff
PP
326#define dTOPuv UV value = TOPu
327#define dPOPuv UV value = POPu
79072805 328
7a4c00b4 329#define dPOPXssrl(X) SV *right = POPs; SV *left = CAT2(X,s)
65202027 330#define dPOPXnnrl(X) NV right = POPn; NV left = CAT2(X,n)
7a4c00b4
PP
331#define dPOPXiirl(X) IV right = POPi; IV left = CAT2(X,i)
332
333#define USE_LEFT(sv) \
6b349a5c 334 (SvOK(sv) || !(PL_op->op_flags & OPf_STACKED))
6f1401dc 335#define dPOPXiirl_ul_nomg(X) \
096c060c 336 IV right = (sp--, SvIV_nomg(TOPp1s)); \
6f1401dc 337 SV *leftsv = CAT2(X,s); \
096c060c 338 IV left = USE_LEFT(leftsv) ? SvIV_nomg(leftsv) : 0
7a4c00b4
PP
339
340#define dPOPPOPssrl dPOPXssrl(POP)
341#define dPOPPOPnnrl dPOPXnnrl(POP)
7a4c00b4 342#define dPOPPOPiirl dPOPXiirl(POP)
7a4c00b4
PP
343
344#define dPOPTOPssrl dPOPXssrl(TOP)
345#define dPOPTOPnnrl dPOPXnnrl(TOP)
6f1401dc
DM
346#define dPOPTOPnnrl_nomg \
347 NV right = SvNV_nomg(TOPs); NV left = (sp--, SvNV_nomg(TOPs))
7a4c00b4 348#define dPOPTOPiirl dPOPXiirl(TOP)
6f1401dc
DM
349#define dPOPTOPiirl_ul_nomg dPOPXiirl_ul_nomg(TOP)
350#define dPOPTOPiirl_nomg \
096c060c 351 IV right = SvIV_nomg(TOPs); IV left = (sp--, SvIV_nomg(TOPs))
79072805 352
3280af22
NIS
353#define RETPUSHYES RETURNX(PUSHs(&PL_sv_yes))
354#define RETPUSHNO RETURNX(PUSHs(&PL_sv_no))
355#define RETPUSHUNDEF RETURNX(PUSHs(&PL_sv_undef))
79072805 356
3280af22
NIS
357#define RETSETYES RETURNX(SETs(&PL_sv_yes))
358#define RETSETNO RETURNX(SETs(&PL_sv_no))
359#define RETSETUNDEF RETURNX(SETs(&PL_sv_undef))
79072805 360
533c011a 361#define ARGTARG PL_op->op_targ
b162f9ea
IZ
362
363 /* See OPpTARGET_MY: */
364#define MAXARG (PL_op->op_private & 15)
79072805 365
e336de0d
GS
366#define SWITCHSTACK(f,t) \
367 STMT_START { \
677b06e3 368 AvFILLp(f) = sp - PL_stack_base; \
3280af22 369 PL_stack_base = AvARRAY(t); \
677b06e3 370 PL_stack_max = PL_stack_base + AvMAX(t); \
3280af22 371 sp = PL_stack_sp = PL_stack_base + AvFILLp(t); \
677b06e3 372 PL_curstack = t; \
e336de0d 373 } STMT_END
79072805 374
bbce6d69 375#define EXTEND_MORTAL(n) \
677b06e3 376 STMT_START { \
2439e033 377 if (UNLIKELY(PL_tmps_ix + (n) >= PL_tmps_max)) \
677b06e3
GS
378 tmps_grow(n); \
379 } STMT_END
bbce6d69 380
a0d0e21e
LW
381#define AMGf_noright 1
382#define AMGf_noleft 2
383#define AMGf_assign 4
384#define AMGf_unary 8
6f1401dc
DM
385#define AMGf_numeric 0x10 /* for Perl_try_amagic_bin */
386#define AMGf_set 0x20 /* for Perl_try_amagic_bin */
67288365 387#define AMGf_want_list 0x40
6f1401dc
DM
388
389
390/* do SvGETMAGIC on the stack args before checking for overload */
391
392#define tryAMAGICun_MG(method, flags) STMT_START { \
393 if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \
394 && Perl_try_amagic_un(aTHX_ method, flags)) \
395 return NORMAL; \
396 } STMT_END
397#define tryAMAGICbin_MG(method, flags) STMT_START { \
398 if ( ((SvFLAGS(TOPm1s)|SvFLAGS(TOPs)) & (SVf_ROK|SVs_GMG)) \
399 && Perl_try_amagic_bin(aTHX_ method, flags)) \
400 return NORMAL; \
401 } STMT_END
402
31d632c3
DM
403#define AMG_CALLunary(sv,meth) \
404 amagic_call(sv,&PL_sv_undef, meth, AMGf_noright | AMGf_unary)
405
406/* No longer used in core. Use AMG_CALLunary instead */
407#define AMG_CALLun(sv,meth) AMG_CALLunary(sv, CAT2(meth,_amg))
a0d0e21e 408
fc99edcf 409#define tryAMAGICunTARGETlist(meth, jump) \
9f39b4f1 410 STMT_START { \
b5c08826
DM
411 dSP; \
412 SV *tmpsv; \
fc99edcf 413 SV *arg= *sp; \
67288365 414 int gimme = GIMME_V; \
b5c08826
DM
415 if (SvAMAGIC(arg) && \
416 (tmpsv = amagic_call(arg, &PL_sv_undef, meth, \
05fbd38d
FC
417 AMGf_want_list | AMGf_noright \
418 |AMGf_unary))) { \
b5c08826 419 SPAGAIN; \
67288365
JL
420 if (gimme == G_VOID) { \
421 (void)POPs; /* XXX ??? */ \
422 } \
05fbd38d 423 else if (gimme == G_ARRAY) { \
c70927a6
FC
424 SSize_t i; \
425 SSize_t len; \
67288365
JL
426 assert(SvTYPE(tmpsv) == SVt_PVAV); \
427 len = av_len((AV *)tmpsv) + 1; \
428 (void)POPs; /* get rid of the arg */ \
429 EXTEND(sp, len); \
430 for (i = 0; i < len; ++i) \
431 PUSHs(av_shift((AV *)tmpsv)); \
432 } \
433 else { /* AMGf_want_scalar */ \
434 dATARGET; /* just use the arg's location */ \
435 sv_setsv(TARG, tmpsv); \
436 if (opASSIGN) \
437 sp--; \
438 SETTARG; \
439 } \
b5c08826
DM
440 PUTBACK; \
441 if (jump) { \
86e5639b
GG
442 OP *jump_o = NORMAL->op_next; \
443 while (jump_o->op_type == OP_NULL) \
444 jump_o = jump_o->op_next; \
445 assert(jump_o->op_type == OP_ENTERSUB); \
b5c08826 446 PL_markstack_ptr--; \
86e5639b 447 return jump_o->op_next; \
9f39b4f1 448 } \
b5c08826
DM
449 return NORMAL; \
450 } \
9f39b4f1
NC
451 } STMT_END
452
8897dcaa
NC
453/* This is no longer used anywhere in the core. You might wish to consider
454 calling amagic_deref_call() directly, as it has a cleaner interface. */
455#define tryAMAGICunDEREF(meth) \
9f39b4f1 456 STMT_START { \
e89bfaa6 457 sv = amagic_deref_call(*sp, CAT2(meth,_amg)); \
25a9ffce 458 SPAGAIN; \
16e7e110 459 } STMT_END
e8c20960 460
180b7b9b 461
533c011a 462#define opASSIGN (PL_op->op_flags & OPf_STACKED)
e9905555 463#define SETsv(sv) STMT_START { \
b162f9ea
IZ
464 if (opASSIGN || (SvFLAGS(TARG) & SVs_PADMY)) \
465 { sv_setsv(TARG, (sv)); SETTARG; } \
466 else SETs(sv); } STMT_END
467
468#define SETsvUN(sv) STMT_START { \
469 if (SvFLAGS(TARG) & SVs_PADMY) \
470 { sv_setsv(TARG, (sv)); SETTARG; } \
e9905555 471 else SETs(sv); } STMT_END
a0d0e21e 472
78f9721b
SM
473/*
474=for apidoc mU||LVRET
475True if this op will be the return value of an lvalue subroutine
476
477=cut */
9d96b2e7 478#define LVRET ((PL_op->op_private & OPpMAYBE_LVSUB) && is_lvalue_sub())
1b6737cc 479
d30e492c
VP
480#define SvCANEXISTDELETE(sv) \
481 (!SvRMAGICAL(sv) \
2c5f48c2
FC
482 || !(mg = mg_find((const SV *) sv, PERL_MAGIC_tied)) \
483 || ( (stash = SvSTASH(SvRV(SvTIED_obj(MUTABLE_SV(sv), mg)))) \
d30e492c
VP
484 && gv_fetchmethod_autoload(stash, "EXISTS", TRUE) \
485 && gv_fetchmethod_autoload(stash, "DELETE", TRUE) \
486 ) \
487 )
488
d682515d 489#ifdef PERL_CORE
557fbd17 490
d682515d
NC
491/* These are just for Perl_tied_method(), which is not part of the public API.
492 Use 0x04 rather than the next available bit, to help the compiler if the
493 architecture can generate more efficient instructions. */
494# define TIED_METHOD_MORTALIZE_NOT_NEEDED 0x04
495# define TIED_METHOD_ARGUMENTS_ON_STACK 0x08
94bc412f 496# define TIED_METHOD_SAY 0x10
557fbd17
FC
497
498/* Used in various places that need to dereference a glob or globref */
094a3eec 499# define MAYBE_DEREF_GV_flags(sv,phlags) \
557fbd17 500 ( \
094a3eec 501 (void)(phlags & SV_GMAGIC && (SvGETMAGIC(sv),0)), \
557fbd17 502 isGV_with_GP(sv) \
4e794a06 503 ? (GV *)(sv) \
f8afbfa6
FC
504 : SvROK(sv) && SvTYPE(SvRV(sv)) <= SVt_PVLV && \
505 (SvGETMAGIC(SvRV(sv)), isGV_with_GP(SvRV(sv))) \
557fbd17
FC
506 ? (GV *)SvRV(sv) \
507 : NULL \
508 )
094a3eec
FC
509# define MAYBE_DEREF_GV(sv) MAYBE_DEREF_GV_flags(sv,SV_GMAGIC)
510# define MAYBE_DEREF_GV_nomg(sv) MAYBE_DEREF_GV_flags(sv,0)
557fbd17 511
db4cf31d 512# define FIND_RUNCV_padid_eq 1
b4b0692a 513# define FIND_RUNCV_level_eq 2
70794f7b 514
d682515d
NC
515#endif
516
1b6737cc
AL
517/*
518 * Local variables:
519 * c-indentation-style: bsd
520 * c-basic-offset: 4
14d04a33 521 * indent-tabs-mode: nil
1b6737cc
AL
522 * End:
523 *
14d04a33 524 * ex: set ts=8 sts=4 sw=4 et:
1b6737cc 525 */