3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others
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.
12 * The fields of BASEOP are:
13 * op_next Pointer to next ppcode to execute after this one.
14 * (Top level pre-grafted op points to first op,
15 * but this is replaced when op is grafted in, when
16 * this op will point to the real next op, and the new
17 * parent takes over role of remembering starting op.)
18 * op_ppaddr Pointer to current ppcode's function.
19 * op_type The type of the operation.
20 * op_opt Whether or not the op has been optimised by the
23 * See the comments in S_clear_yystack() for more
24 * details on the following three flags:
26 * op_latefree tell op_free() to clear this op (and free any kids)
27 * but not yet deallocate the struct. This means that
28 * the op may be safely op_free()d multiple times
29 * op_latefreed an op_latefree op has been op_free()d
30 * op_attached this op (sub)tree has been attached to a CV
32 * op_spare three spare bits!
33 * op_flags Flags common to all operations. See OPf_* below.
34 * op_private Flags peculiar to a particular operation (BUT,
35 * by default, set to the number of children until
36 * the operation is privatized by a check routine,
37 * which may or may not check number of children).
43 # define MADPROP_IN_BASEOP MADPROP* op_madprop;
45 # define MADPROP_IN_BASEOP
48 #ifdef BASEOP_DEFINITION
49 #define BASEOP BASEOP_DEFINITION
54 OP* (CPERLscope(*op_ppaddr))(pTHX); \
59 unsigned op_latefree:1; \
60 unsigned op_latefreed:1; \
61 unsigned op_attached:1; \
62 unsigned op_spare:3; \
67 #define OP_GIMME(op,dfl) \
68 (((op)->op_flags & OPf_WANT) == OPf_WANT_VOID ? G_VOID : \
69 ((op)->op_flags & OPf_WANT) == OPf_WANT_SCALAR ? G_SCALAR : \
70 ((op)->op_flags & OPf_WANT) == OPf_WANT_LIST ? G_ARRAY : \
73 #define OP_GIMME_REVERSE(flags) \
74 ((flags & G_VOID) ? OPf_WANT_VOID : \
75 (flags & G_ARRAY) ? OPf_WANT_LIST : \
81 =for apidoc Amn|U32|GIMME_V
82 The XSUB-writer's equivalent to Perl's C<wantarray>. Returns C<G_VOID>,
83 C<G_SCALAR> or C<G_ARRAY> for void, scalar or list context,
86 =for apidoc Amn|U32|GIMME
87 A backward-compatible version of C<GIMME_V> which can only return
88 C<G_SCALAR> or C<G_ARRAY>; in a void context, it returns C<G_SCALAR>.
89 Deprecated. Use C<GIMME_V> instead.
94 #define GIMME_V OP_GIMME(PL_op, block_gimme())
98 #define OPf_WANT 3 /* Mask for "want" bits: */
99 #define OPf_WANT_VOID 1 /* Want nothing */
100 #define OPf_WANT_SCALAR 2 /* Want single value */
101 #define OPf_WANT_LIST 3 /* Want list of any length */
102 #define OPf_KIDS 4 /* There is a firstborn child. */
103 #define OPf_PARENS 8 /* This operator was parenthesized. */
104 /* (Or block needs explicit scope entry.) */
105 #define OPf_REF 16 /* Certified reference. */
106 /* (Return container, not containee). */
107 #define OPf_MOD 32 /* Will modify (lvalue). */
108 #define OPf_STACKED 64 /* Some arg is arriving on the stack. */
109 #define OPf_SPECIAL 128 /* Do something weird for this op: */
110 /* On local LVAL, don't init local value. */
111 /* On OP_CONST, value is the hints hash for
112 eval, so return a copy from pp_const() */
113 /* On OP_SORT, subroutine is inlined. */
114 /* On OP_NOT, inversion was implicit. */
115 /* On OP_LEAVE, don't restore curpm. */
116 /* On truncate, we truncate filehandle */
117 /* On control verbs, we saw no label */
118 /* On flipflop, we saw ... instead of .. */
119 /* On UNOPs, saw bare parens, e.g. eof(). */
120 /* On OP_ENTERSUB || OP_NULL, saw a "do". */
121 /* On OP_EXISTS, treat av as av, not avhv. */
122 /* On OP_(ENTER|LEAVE)EVAL, don't clear $@ */
123 /* On OP_ENTERITER, loop var is per-thread */
124 /* On pushre, rx is used as part of split, e.g. split " " */
125 /* On regcomp, "use re 'eval'" was in scope */
126 /* On OP_READLINE, was <$filehandle> */
127 /* On RV2[ACGHS]V, don't create GV--in
129 /* On OP_DBSTATE, indicates breakpoint
130 * (runtime property) */
131 /* On OP_AELEMFAST, indiciates pad var */
132 /* On OP_REQUIRE, was seen as CORE::require */
133 /* On OP_ENTERWHEN, there's no condition */
134 /* On OP_BREAK, an implicit break */
135 /* On OP_SMARTMATCH, an implicit smartmatch */
136 /* On OP_ANONHASH and OP_ANONLIST, create a
137 reference to the new anon hash or array */
139 /* old names; don't use in new code, but don't break them, either */
140 #define OPf_LIST OPf_WANT_LIST
141 #define OPf_KNOW OPf_WANT
144 (PL_op->op_flags & OPf_WANT \
145 ? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \
150 /* NOTE: OP_NEXTSTATE, OP_DBSTATE, and OP_SETSTATE (i.e. COPs) carry lower
151 * bits of PL_hints in op_private */
153 /* Private for lvalues */
154 #define OPpLVAL_INTRO 128 /* Lvalue must be localized or lvalue sub */
156 /* Private for OP_LEAVE, OP_LEAVESUB, OP_LEAVESUBLV and OP_LEAVEWRITE */
157 #define OPpREFCOUNTED 64 /* op_targ carries a refcount */
159 /* Private for OP_AASSIGN */
160 #define OPpASSIGN_COMMON 64 /* Left & right have syms in common. */
162 /* Private for OP_SASSIGN */
163 #define OPpASSIGN_BACKWARDS 64 /* Left & right switched. */
164 #define OPpASSIGN_CV_TO_GV 128 /* Possible optimisation for constants. */
166 /* Private for OP_MATCH and OP_SUBST{,CONST} */
167 #define OPpRUNTIME 64 /* Pattern coming in on the stack */
169 /* Private for OP_TRANS */
170 #define OPpTRANS_FROM_UTF 1
171 #define OPpTRANS_TO_UTF 2
172 #define OPpTRANS_IDENTICAL 4 /* right side is same as left */
173 #define OPpTRANS_SQUASH 8
174 /* 16 is used for OPpTARGET_MY */
175 #define OPpTRANS_COMPLEMENT 32
176 #define OPpTRANS_GROWS 64
177 #define OPpTRANS_DELETE 128
178 #define OPpTRANS_ALL (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|OPpTRANS_SQUASH|OPpTRANS_COMPLEMENT|OPpTRANS_GROWS|OPpTRANS_DELETE)
180 /* Private for OP_REPEAT */
181 #define OPpREPEAT_DOLIST 64 /* List replication. */
183 /* Private for OP_RV2GV, OP_RV2SV, OP_AELEM, OP_HELEM, OP_PADSV */
184 #define OPpDEREF (32|64) /* autovivify: Want ref to something: */
185 #define OPpDEREF_AV 32 /* Want ref to AV. */
186 #define OPpDEREF_HV 64 /* Want ref to HV. */
187 #define OPpDEREF_SV (32|64) /* Want ref to SV. */
188 /* OP_ENTERSUB only */
189 #define OPpENTERSUB_DB 16 /* Debug subroutine. */
190 #define OPpENTERSUB_HASTARG 32 /* Called from OP tree. */
191 #define OPpENTERSUB_NOMOD 64 /* Immune to mod() for :attrlist. */
193 #define OPpENTERSUB_AMPER 8 /* Used & form to call. */
194 #define OPpENTERSUB_NOPAREN 128 /* bare sub call (without parens) */
195 #define OPpENTERSUB_INARGS 4 /* Lval used as arg to a sub. */
197 #define OPpEARLY_CV 32 /* foo() called before sub foo was parsed */
199 #define OPpLVAL_DEFER 16 /* Defer creation of array/hash elem */
200 /* OP_RV2?V, OP_GVSV, OP_ENTERITER only */
201 #define OPpOUR_INTRO 16 /* Variable was in an our() */
202 /* OP_RV2[AGH]V, OP_PAD[AH]V, OP_[AH]ELEM */
203 #define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */
205 #define OPpPAD_STATE 16 /* is a "state" pad */
206 /* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */
209 #define OPpDONT_INIT_GV 4 /* Call gv_fetchpv with GV_NOINIT */
210 /* (Therefore will return whatever is currently in the symbol table, not
211 guaranteed to be a PVGV) */
214 #define OPpMAY_RETURN_CONSTANT 1 /* If a constant sub, return the constant */
216 /* Private for OPs with TARGLEX */
217 /* (lower bits may carry MAXARG) */
218 #define OPpTARGET_MY 16 /* Target is PADMY. */
220 /* Private for OP_ENTERITER and OP_ITER */
221 #define OPpITER_REVERSED 4 /* for (reverse ...) */
222 #define OPpITER_DEF 8 /* for $_ or for my $_ */
224 /* Private for OP_CONST */
225 #define OPpCONST_NOVER 2 /* no 6; */
226 #define OPpCONST_SHORTCIRCUIT 4 /* eg the constant 5 in (5 || foo) */
227 #define OPpCONST_STRICT 8 /* bearword subject to strict 'subs' */
228 #define OPpCONST_ENTERED 16 /* Has been entered as symbol. */
229 #define OPpCONST_ARYBASE 32 /* Was a $[ translated to constant. */
230 #define OPpCONST_BARE 64 /* Was a bare word (filehandle?). */
231 #define OPpCONST_WARNING 128 /* Was a $^W translated to constant. */
233 /* Private for OP_FLIP/FLOP */
234 #define OPpFLIP_LINENUM 64 /* Range arg potentially a line num. */
236 /* Private for OP_LIST */
237 #define OPpLIST_GUESSED 64 /* Guessed that pushmark was needed. */
239 /* Private for OP_DELETE */
240 #define OPpSLICE 64 /* Operating on a list of keys */
242 /* Private for OP_EXISTS */
243 #define OPpEXISTS_SUB 64 /* Checking for &sub, not {} or []. */
245 /* Private for OP_SORT */
246 #define OPpSORT_NUMERIC 1 /* Optimized away { $a <=> $b } */
247 #define OPpSORT_INTEGER 2 /* Ditto while under "use integer" */
248 #define OPpSORT_REVERSE 4 /* Reversed sort */
249 #define OPpSORT_INPLACE 8 /* sort in-place; eg @a = sort @a */
250 #define OPpSORT_DESCEND 16 /* Descending sort */
251 #define OPpSORT_QSORT 32 /* Use quicksort (not mergesort) */
252 #define OPpSORT_STABLE 64 /* Use a stable algorithm */
254 /* Private for OP_OPEN and OP_BACKTICK */
255 #define OPpOPEN_IN_RAW 16 /* binmode(F,":raw") on input fh */
256 #define OPpOPEN_IN_CRLF 32 /* binmode(F,":crlf") on input fh */
257 #define OPpOPEN_OUT_RAW 64 /* binmode(F,":raw") on output fh */
258 #define OPpOPEN_OUT_CRLF 128 /* binmode(F,":crlf") on output fh */
260 /* Private for OP_EXIT, HUSH also for OP_DIE */
261 #define OPpHUSH_VMSISH 64 /* hush DCL exit msg vmsish mode*/
262 #define OPpEXIT_VMSISH 128 /* exit(0) vs. exit(1) vmsish mode*/
264 /* Private for OP_FTXXX */
265 #define OPpFT_ACCESS 2 /* use filetest 'access' */
266 #define OPpFT_STACKED 4 /* stacked filetest, as in "-f -x $f" */
267 #define OP_IS_FILETEST_ACCESS(op) \
268 (((op)->op_type) == OP_FTRREAD || \
269 ((op)->op_type) == OP_FTRWRITE || \
270 ((op)->op_type) == OP_FTREXEC || \
271 ((op)->op_type) == OP_FTEREAD || \
272 ((op)->op_type) == OP_FTEWRITE || \
273 ((op)->op_type) == OP_FTEEXEC)
275 /* Private for OP_(MAP|GREP)(WHILE|START) */
276 #define OPpGREP_LEX 2 /* iterate over lexical $_ */
278 /* Private for OP_ENTEREVAL */
279 #define OPpEVAL_HAS_HH 2 /* Does it have a copy of %^H */
315 REGEXP * op_pmregexp; /* compiled expression */
319 OP * op_pmreplroot; /* For OP_SUBST */
321 PADOFFSET op_pmtargetoff; /* For OP_PUSHRE */
327 OP * op_pmreplstart; /* Only used in OP_SUBST */
329 char * op_pmstashpv; /* Only used in OP_MATCH, with PMf_ONCE set */
337 #define PM_GETRE(o) (SvTYPE(PL_regex_pad[(o)->op_pmoffset]) == SVt_REGEXP \
338 ? (REGEXP*)(PL_regex_pad[(o)->op_pmoffset]) : NULL)
339 /* The assignment is just to enforce type safety (or at least get a warning).
341 /* With first class regexps not via a reference one needs to assign
342 &PL_sv_undef under ithreads. (This would probably work unthreaded, but NULL
343 is cheaper. I guess we could allow NULL, but the check above would get
344 more complex, and we'd have an AV with (SV*)NULL in it, which feels bad */
345 /* BEWARE - something that calls this macro passes (r) which has a side
347 #define PM_SETRE(o,r) STMT_START { \
348 const REGEXP *const whap = (r); \
350 PL_regex_pad[(o)->op_pmoffset] = (SV*)whap; \
353 #define PM_GETRE(o) ((o)->op_pmregexp)
354 #define PM_SETRE(o,r) ((o)->op_pmregexp = (r))
358 #define PMf_RETAINT 0x00000040 /* taint $1 etc. if target tainted */
359 #define PMf_ONCE 0x00000080 /* match successfully only once per
360 reset, with related flag RXf_USED
361 in re->extflags holding state.
362 This is used only for ?? matches,
363 and only on OP_MATCH and OP_QR */
365 #define PMf_UNUSED 0x00000100 /* free for use */
366 #define PMf_MAYBE_CONST 0x00000200 /* replacement contains variables */
368 #define PMf_USED 0x00000400 /* PMf_ONCE has matched successfully.
369 Not used under threading. */
371 #define PMf_CONST 0x00000800 /* subst replacement is constant */
372 #define PMf_KEEP 0x00001000 /* keep 1st runtime pattern forever */
373 #define PMf_GLOBAL 0x00002000 /* pattern had a g modifier */
374 #define PMf_CONTINUE 0x00004000 /* don't reset pos() if //g fails */
375 #define PMf_EVAL 0x00008000 /* evaluating replacement as expr */
377 /* The following flags have exact equivalents in regcomp.h with the prefix RXf_
378 * which are stored in the regexp->extflags member. If you change them here,
379 * you have to change them there, and vice versa.
381 #define PMf_MULTILINE 0x00000001 /* assume multiple lines */
382 #define PMf_SINGLELINE 0x00000002 /* assume single line */
383 #define PMf_FOLD 0x00000004 /* case insensitivity */
384 #define PMf_EXTENDED 0x00000008 /* chuck embedded whitespace */
385 #define PMf_KEEPCOPY 0x00000010 /* copy the string when matching */
386 #define PMf_LOCALE 0x00000020 /* use locale for character types */
388 /* mask of bits that need to be transfered to re->extflags */
389 #define PMf_COMPILETIME (PMf_MULTILINE|PMf_SINGLELINE|PMf_LOCALE|PMf_FOLD|PMf_EXTENDED|PMf_KEEPCOPY)
393 # define PmopSTASHPV(o) \
394 (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstashpv : NULL)
395 # if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
396 # define PmopSTASHPV_set(o,pv) ({ \
397 assert((o)->op_pmflags & PMf_ONCE); \
398 ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv)); \
401 # define PmopSTASHPV_set(o,pv) \
402 ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv))
404 # define PmopSTASH(o) (PmopSTASHPV(o) \
405 ? gv_stashpv((o)->op_pmstashstartu.op_pmstashpv,GV_ADD) : NULL)
406 # define PmopSTASH_set(o,hv) PmopSTASHPV_set(o, ((hv) ? HvNAME_get(hv) : NULL))
407 # define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o))
410 # define PmopSTASH(o) \
411 (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstash : NULL)
412 # if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
413 # define PmopSTASH_set(o,hv) ({ \
414 assert((o)->op_pmflags & PMf_ONCE); \
415 ((o)->op_pmstashstartu.op_pmstash = (hv)); \
418 # define PmopSTASH_set(o,hv) ((o)->op_pmstashstartu.op_pmstash = (hv))
420 # define PmopSTASHPV(o) (PmopSTASH(o) ? HvNAME_get(PmopSTASH(o)) : NULL)
421 /* op_pmstashstartu.op_pmstash is not refcounted */
422 # define PmopSTASHPV_set(o,pv) PmopSTASH_set((o), gv_stashpv(pv,GV_ADD))
423 /* Note that if this becomes non-empty, then S_forget_pmop in op.c will need
425 # define PmopSTASH_free(o)
452 #define cUNOPx(o) ((UNOP*)o)
453 #define cBINOPx(o) ((BINOP*)o)
454 #define cLISTOPx(o) ((LISTOP*)o)
455 #define cLOGOPx(o) ((LOGOP*)o)
456 #define cPMOPx(o) ((PMOP*)o)
457 #define cSVOPx(o) ((SVOP*)o)
458 #define cPADOPx(o) ((PADOP*)o)
459 #define cPVOPx(o) ((PVOP*)o)
460 #define cCOPx(o) ((COP*)o)
461 #define cLOOPx(o) ((LOOP*)o)
463 #define cUNOP cUNOPx(PL_op)
464 #define cBINOP cBINOPx(PL_op)
465 #define cLISTOP cLISTOPx(PL_op)
466 #define cLOGOP cLOGOPx(PL_op)
467 #define cPMOP cPMOPx(PL_op)
468 #define cSVOP cSVOPx(PL_op)
469 #define cPADOP cPADOPx(PL_op)
470 #define cPVOP cPVOPx(PL_op)
471 #define cCOP cCOPx(PL_op)
472 #define cLOOP cLOOPx(PL_op)
474 #define cUNOPo cUNOPx(o)
475 #define cBINOPo cBINOPx(o)
476 #define cLISTOPo cLISTOPx(o)
477 #define cLOGOPo cLOGOPx(o)
478 #define cPMOPo cPMOPx(o)
479 #define cSVOPo cSVOPx(o)
480 #define cPADOPo cPADOPx(o)
481 #define cPVOPo cPVOPx(o)
482 #define cCOPo cCOPx(o)
483 #define cLOOPo cLOOPx(o)
485 #define kUNOP cUNOPx(kid)
486 #define kBINOP cBINOPx(kid)
487 #define kLISTOP cLISTOPx(kid)
488 #define kLOGOP cLOGOPx(kid)
489 #define kPMOP cPMOPx(kid)
490 #define kSVOP cSVOPx(kid)
491 #define kPADOP cPADOPx(kid)
492 #define kPVOP cPVOPx(kid)
493 #define kCOP cCOPx(kid)
494 #define kLOOP cLOOPx(kid)
498 # define cGVOPx_gv(o) ((GV*)PAD_SVl(cPADOPx(o)->op_padix))
499 # define IS_PADGV(v) (v && SvTYPE(v) == SVt_PVGV && isGV_with_GP(v) \
501 # define IS_PADCONST(v) (v && SvREADONLY(v))
502 # define cSVOPx_sv(v) (cSVOPx(v)->op_sv \
503 ? cSVOPx(v)->op_sv : PAD_SVl((v)->op_targ))
504 # define cSVOPx_svp(v) (cSVOPx(v)->op_sv \
505 ? &cSVOPx(v)->op_sv : &PAD_SVl((v)->op_targ))
507 # define cGVOPx_gv(o) ((GV*)cSVOPx(o)->op_sv)
508 # define IS_PADGV(v) FALSE
509 # define IS_PADCONST(v) FALSE
510 # define cSVOPx_sv(v) (cSVOPx(v)->op_sv)
511 # define cSVOPx_svp(v) (&cSVOPx(v)->op_sv)
514 #define cGVOP_gv cGVOPx_gv(PL_op)
515 #define cGVOPo_gv cGVOPx_gv(o)
516 #define kGVOP_gv cGVOPx_gv(kid)
517 #define cSVOP_sv cSVOPx_sv(PL_op)
518 #define cSVOPo_sv cSVOPx_sv(o)
519 #define kSVOP_sv cSVOPx_sv(kid)
521 #define Nullop ((OP*)NULL)
523 /* Lowest byte-and-a-bit of PL_opargs */
525 #define OA_FOLDCONST 2
526 #define OA_RETSCALAR 4
528 #define OA_RETINTEGER 16
529 #define OA_OTHERINT 32
530 #define OA_DANGEROUS 64
532 #define OA_TARGLEX 256
534 /* The next 4 bits encode op class information */
537 #define OA_CLASS_MASK (15 << OCSHIFT)
539 #define OA_BASEOP (0 << OCSHIFT)
540 #define OA_UNOP (1 << OCSHIFT)
541 #define OA_BINOP (2 << OCSHIFT)
542 #define OA_LOGOP (3 << OCSHIFT)
543 #define OA_LISTOP (4 << OCSHIFT)
544 #define OA_PMOP (5 << OCSHIFT)
545 #define OA_SVOP (6 << OCSHIFT)
546 #define OA_PADOP (7 << OCSHIFT)
547 #define OA_PVOP_OR_SVOP (8 << OCSHIFT)
548 #define OA_LOOP (9 << OCSHIFT)
549 #define OA_COP (10 << OCSHIFT)
550 #define OA_BASEOP_OR_UNOP (11 << OCSHIFT)
551 #define OA_FILESTATOP (12 << OCSHIFT)
552 #define OA_LOOPEXOP (13 << OCSHIFT)
556 /* Remaining nybbles of PL_opargs */
563 #define OA_SCALARREF 7
564 #define OA_OPTIONAL 8
566 /* Op_REFCNT is a reference count at the head of each op tree: needed
567 * since the tree is shared between threads, and between cloned closure
568 * copies in the same thread. OP_REFCNT_LOCK/UNLOCK is used when modifying
570 * The same mutex is used to protect the refcounts of the reg_trie_data
571 * and reg_ac_data structures, which are shared between duplicated
576 # define OP_REFCNT_INIT MUTEX_INIT(&PL_op_mutex)
578 # define OP_REFCNT_LOCK MUTEX_LOCK(&PL_op_mutex)
579 # define OP_REFCNT_UNLOCK MUTEX_UNLOCK(&PL_op_mutex)
581 # define OP_REFCNT_LOCK op_refcnt_lock()
582 # define OP_REFCNT_UNLOCK op_refcnt_unlock()
584 # define OP_REFCNT_TERM MUTEX_DESTROY(&PL_op_mutex)
586 # define OP_REFCNT_INIT NOOP
587 # define OP_REFCNT_LOCK NOOP
588 # define OP_REFCNT_UNLOCK NOOP
589 # define OP_REFCNT_TERM NOOP
592 #define OpREFCNT_set(o,n) ((o)->op_targ = (n))
593 #ifdef PERL_DEBUG_READONLY_OPS
594 # define OpREFCNT_inc(o) Perl_op_refcnt_inc(aTHX_ o)
595 # define OpREFCNT_dec(o) Perl_op_refcnt_dec(aTHX_ o)
597 # define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : NULL)
598 # define OpREFCNT_dec(o) (--(o)->op_targ)
601 /* flags used by Perl_load_module() */
602 #define PERL_LOADMOD_DENY 0x1
603 #define PERL_LOADMOD_NOIMPORT 0x2
604 #define PERL_LOADMOD_IMPORT_OPS 0x4
606 #if defined(PERL_IN_PERLY_C) || defined(PERL_IN_OP_C)
607 #define ref(o, type) doref(o, type, TRUE)
610 /* no longer used anywhere in core */
612 #define cv_ckproto(cv, gv, p) \
613 cv_ckproto_len((cv), (gv), (p), (p) ? strlen(p) : 0)
616 #ifdef USE_REENTRANT_API
620 #if defined(PL_OP_SLAB_ALLOC)
621 #define NewOp(m,var,c,type) \
622 (var = (type *) Perl_Slab_Alloc(aTHX_ c*sizeof(type)))
623 #define NewOpSz(m,var,size) \
624 (var = (OP *) Perl_Slab_Alloc(aTHX_ size))
625 #define FreeOp(p) Perl_Slab_Free(aTHX_ p)
627 #define NewOp(m, var, c, type) \
628 (var = (MEM_WRAP_CHECK_(c,type) \
629 (type*)PerlMemShared_calloc(c, sizeof(type))))
630 #define NewOpSz(m, var, size) \
631 (var = (OP*)PerlMemShared_calloc(1, size))
632 #define FreeOp(p) PerlMemShared_free(p)
645 /* short mad_count; */
658 * Values that can be held by mad_key :
659 * ^ unfilled head spot
661 * ; literal ; (blank if implicit ; at end of block)
662 * : literal : from ?: or attr list
664 * ? literal ? from ?:
674 * ! use is source filtered
676 * # whitespace/comment following ; or }
678 * 1 1st ; from for(;;)
680 * 2 2nd ; from for(;;)
683 * a sub or var attributes
684 * a non-method arrow operator
685 * A method arrow operator
688 * B retired stub block
689 * C constant conditional op
692 * e unreached "else" (see C)
693 * e expression producing E
695 * f folded constant op
696 * F peg op for format
697 * g op was forced to be a word
698 * i if/unless modifier
699 * I if/elsif/unless statement
702 * l last index of array ($#foo)
704 * m modifier on regex
705 * n sub or format name
706 * o current operator/declarator name
708 * O generic optimized op
709 * p peg to hold extra whitespace at statement level
710 * P peg op for package declaration
715 * r expression producing R
718 * S use import stub (no import)
719 * S retired sort block
720 * t unreached "then" (see C)
722 * v private sv of for loop
724 * w while/until modifier
725 * W while/for statement
728 * _ whitespace/comments preceding anything else
734 * c-indentation-style: bsd
736 * indent-tabs-mode: t
739 * ex: set ts=8 sts=4 sw=4 noet: