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Remove a now un-needed goto from Perl_peep().
[p5sagit/p5-mst-13.2.git] / op.h
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a0d0e21e 1/* op.h
79072805 2 *
4bb101f2 3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
699a97de 4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006 by Larry Wall and others
79072805 5 *
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.
8 *
79072805 9 */
10
11/*
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.
2814eb74 20 * op_opt Whether or not the op has been optimised by the
21 * peephole optimiser.
22 * op_static Whether or not the op is statically defined.
23 * This flag is used by the B::C compiler backend
24 * and indicates that the op should not be freed.
7e5d8ed2 25 *
26 * See the comments in S_clear_yystack() for more
27 * details on the following three flags:
28
670f3923 29 * op_latefree tell op_free() to clear this op (and free any kids)
30 * but not yet deallocate the struct. This means that
31 * the op may be safely op_free()d multiple times
32 * op_latefreed an op_latefree op has been op_free()d
7e5d8ed2 33 * op_attached this op (sub)tree has been attached to a CV
34 *
35 * op_spare two spare bits!
79072805 36 * op_flags Flags common to all operations. See OPf_* below.
37 * op_private Flags peculiar to a particular operation (BUT,
38 * by default, set to the number of children until
39 * the operation is privatized by a check routine,
40 * which may or may not check number of children).
41 */
42
4633a7c4 43#ifdef DEBUGGING_OPS
79072805 44#define OPCODE opcode
45#else
46#define OPCODE U16
47#endif
48
598921a7 49#ifdef PERL_MAD
50# define MADPROP_IN_BASEOP MADPROP* op_madprop;
51#else
52# define MADPROP_IN_BASEOP
53#endif
54
0f4eea8f 55#ifdef BASEOP_DEFINITION
56#define BASEOP BASEOP_DEFINITION
57#else
79072805 58#define BASEOP \
59 OP* op_next; \
60 OP* op_sibling; \
4f63d024 61 OP* (CPERLscope(*op_ppaddr))(pTHX); \
598921a7 62 MADPROP_IN_BASEOP \
79072805 63 PADOFFSET op_targ; \
2814eb74 64 unsigned op_type:9; \
65 unsigned op_opt:1; \
66 unsigned op_static:1; \
670f3923 67 unsigned op_latefree:1; \
68 unsigned op_latefreed:1; \
7e5d8ed2 69 unsigned op_attached:1; \
70 unsigned op_spare:2; \
a0d0e21e 71 U8 op_flags; \
72 U8 op_private;
0f4eea8f 73#endif
79072805 74
54310121 75#define OP_GIMME(op,dfl) \
76 (((op)->op_flags & OPf_WANT) == OPf_WANT_VOID ? G_VOID : \
77 ((op)->op_flags & OPf_WANT) == OPf_WANT_SCALAR ? G_SCALAR : \
78 ((op)->op_flags & OPf_WANT) == OPf_WANT_LIST ? G_ARRAY : \
79 dfl)
80
954c1994 81/*
ccfc67b7 82=head1 "Gimme" Values
83
954c1994 84=for apidoc Amn|U32|GIMME_V
85The XSUB-writer's equivalent to Perl's C<wantarray>. Returns C<G_VOID>,
91e74348 86C<G_SCALAR> or C<G_ARRAY> for void, scalar or list context,
954c1994 87respectively.
88
89=for apidoc Amn|U32|GIMME
90A backward-compatible version of C<GIMME_V> which can only return
91C<G_SCALAR> or C<G_ARRAY>; in a void context, it returns C<G_SCALAR>.
92Deprecated. Use C<GIMME_V> instead.
93
94=cut
95*/
96
533c011a 97#define GIMME_V OP_GIMME(PL_op, block_gimme())
79072805 98
99/* Public flags */
54310121 100
101#define OPf_WANT 3 /* Mask for "want" bits: */
102#define OPf_WANT_VOID 1 /* Want nothing */
103#define OPf_WANT_SCALAR 2 /* Want single value */
104#define OPf_WANT_LIST 3 /* Want list of any length */
79072805 105#define OPf_KIDS 4 /* There is a firstborn child. */
106#define OPf_PARENS 8 /* This operator was parenthesized. */
463ee0b2 107 /* (Or block needs explicit scope entry.) */
a0d0e21e 108#define OPf_REF 16 /* Certified reference. */
109 /* (Return container, not containee). */
110#define OPf_MOD 32 /* Will modify (lvalue). */
111#define OPf_STACKED 64 /* Some arg is arriving on the stack. */
79072805 112#define OPf_SPECIAL 128 /* Do something weird for this op: */
113 /* On local LVAL, don't init local value. */
0282be92 114 /* On OP_CONST, value is the hints hash for
115 eval, so return a copy from pp_const() */
79072805 116 /* On OP_SORT, subroutine is inlined. */
117 /* On OP_NOT, inversion was implicit. */
a0d0e21e 118 /* On OP_LEAVE, don't restore curpm. */
79072805 119 /* On truncate, we truncate filehandle */
120 /* On control verbs, we saw no label */
121 /* On flipflop, we saw ... instead of .. */
122 /* On UNOPs, saw bare parens, e.g. eof(). */
a0d0e21e 123 /* On OP_ENTERSUB || OP_NULL, saw a "do". */
afebc493 124 /* On OP_EXISTS, treat av as av, not avhv. */
f2ec2afd 125 /* On OP_(ENTER|LEAVE)EVAL, don't clear $@ */
54b9620d 126 /* On OP_ENTERITER, loop var is per-thread */
497711e7 127 /* On pushre, re is /\s+/ imp. by split " " */
128 /* On regcomp, "use re 'eval'" was in scope */
7c6fadd6 129 /* On OP_READLINE, was <$filehandle> */
17fda545 130 /* On RV2[ACGHS]V, don't create GV--in
131 defined()*/
5df8de69 132 /* On OP_DBSTATE, indicates breakpoint
133 * (runtime property) */
6a077020 134 /* On OP_AELEMFAST, indiciates pad var */
6b514a0d 135 /* On OP_REQUIRE, was seen as CORE::require */
0d863452 136 /* On OP_ENTERWHEN, there's no condition */
137 /* On OP_BREAK, an implicit break */
138 /* On OP_SMARTMATCH, an implicit smartmatch */
78c72037 139 /* On OP_ANONHASH and OP_ANONLIST, create a
140 reference to the new anon hash or array */
79072805 141
54310121 142/* old names; don't use in new code, but don't break them, either */
d91ab173 143#define OPf_LIST OPf_WANT_LIST
144#define OPf_KNOW OPf_WANT
954c1994 145
54310121 146#define GIMME \
62a559b8 147 (PL_op->op_flags & OPf_WANT \
148 ? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \
d91ab173 149 ? G_ARRAY \
150 : G_SCALAR) \
151 : dowantarray())
54310121 152
d41ff1b8 153/* NOTE: OP_NEXTSTATE, OP_DBSTATE, and OP_SETSTATE (i.e. COPs) carry lower
154 * bits of PL_hints in op_private */
155
a0d0e21e 156/* Private for lvalues */
cd06dffe 157#define OPpLVAL_INTRO 128 /* Lvalue must be localized or lvalue sub */
a0d0e21e 158
7934575e 159/* Private for OP_LEAVE, OP_LEAVESUB, OP_LEAVESUBLV and OP_LEAVEWRITE */
160#define OPpREFCOUNTED 64 /* op_targ carries a refcount */
161
a0d0e21e 162/* Private for OP_AASSIGN */
163#define OPpASSIGN_COMMON 64 /* Left & right have syms in common. */
164
165/* Private for OP_SASSIGN */
166#define OPpASSIGN_BACKWARDS 64 /* Left & right switched. */
e26df76a 167#define OPpASSIGN_CV_TO_GV 128 /* Possible optimisation for constants. */
79072805 168
952306ac 169/* Private for OP_[AS]ASSIGN */
170#define OPpASSIGN_STATE 32 /* Assign to a "state" variable */
171
c90c0ff4 172/* Private for OP_MATCH and OP_SUBST{,CONST} */
173#define OPpRUNTIME 64 /* Pattern coming in on the stack */
174
79072805 175/* Private for OP_TRANS */
4757a243 176#define OPpTRANS_FROM_UTF 1
177#define OPpTRANS_TO_UTF 2
383e7cdd 178#define OPpTRANS_IDENTICAL 4 /* right side is same as left */
4757a243 179#define OPpTRANS_SQUASH 8
59f00321 180 /* 16 is used for OPpTARGET_MY */
4757a243 181#define OPpTRANS_COMPLEMENT 32
182#define OPpTRANS_GROWS 64
59f00321 183#define OPpTRANS_DELETE 128
184#define OPpTRANS_ALL (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|OPpTRANS_SQUASH|OPpTRANS_COMPLEMENT|OPpTRANS_GROWS|OPpTRANS_DELETE)
79072805 185
186/* Private for OP_REPEAT */
a0d0e21e 187#define OPpREPEAT_DOLIST 64 /* List replication. */
79072805 188
cf2dc985 189/* Private for OP_RV2GV, OP_RV2SV, OP_AELEM, OP_HELEM, OP_PADSV */
314d4778 190#define OPpDEREF (32|64) /* autovivify: Want ref to something: */
5f05dabc 191#define OPpDEREF_AV 32 /* Want ref to AV. */
192#define OPpDEREF_HV 64 /* Want ref to HV. */
193#define OPpDEREF_SV (32|64) /* Want ref to SV. */
68dc0745 194 /* OP_ENTERSUB only */
195#define OPpENTERSUB_DB 16 /* Debug subroutine. */
d3011074 196#define OPpENTERSUB_HASTARG 32 /* Called from OP tree. */
95f0a2f1 197#define OPpENTERSUB_NOMOD 64 /* Immune to mod() for :attrlist. */
7a52d87a 198 /* OP_RV2CV only */
68dc0745 199#define OPpENTERSUB_AMPER 8 /* Used & form to call. */
9675f7ac 200#define OPpENTERSUB_NOPAREN 128 /* bare sub call (without parens) */
cd06dffe 201#define OPpENTERSUB_INARGS 4 /* Lval used as arg to a sub. */
76cd736e 202 /* OP_GV only */
203#define OPpEARLY_CV 32 /* foo() called before sub foo was parsed */
68dc0745 204 /* OP_?ELEM only */
205#define OPpLVAL_DEFER 16 /* Defer creation of array/hash elem */
241416b8 206 /* OP_RV2?V, OP_GVSV, OP_ENTERITER only */
78f9721b 207#define OPpOUR_INTRO 16 /* Variable was in an our() */
cb0d96b9 208 /* OP_RV2[AGH]V, OP_PAD[AH]V, OP_[AH]ELEM */
78f9721b 209#define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */
952306ac 210 /* OP_PADSV only */
211#define OPpPAD_STATE 16 /* is a "state" pad */
192587c2 212 /* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */
79072805 213
e26df76a 214 /* OP_RV2GV only */
cb0d96b9 215#define OPpDONT_INIT_GV 4 /* Call gv_fetchpv with GV_NOINIT */
e26df76a 216/* (Therefore will return whatever is currently in the symbol table, not
217 guaranteed to be a PVGV) */
218
219 /* OP_RV2CV only */
220#define OPpMAY_RETURN_CONSTANT 1 /* If a constant sub, return the constant */
221
b162f9ea 222/* Private for OPs with TARGLEX */
223 /* (lower bits may carry MAXARG) */
224#define OPpTARGET_MY 16 /* Target is PADMY. */
225
ef3e5ea9 226/* Private for OP_ENTERITER and OP_ITER */
227#define OPpITER_REVERSED 4 /* for (reverse ...) */
0d863452 228#define OPpITER_DEF 8 /* for $_ or for my $_ */
ef3e5ea9 229
79072805 230/* Private for OP_CONST */
468aa647 231#define OPpCONST_NOVER 2 /* no 6; */
e7fec78e 232#define OPpCONST_SHORTCIRCUIT 4 /* eg the constant 5 in (5 || foo) */
7a52d87a 233#define OPpCONST_STRICT 8 /* bearword subject to strict 'subs' */
748a9306 234#define OPpCONST_ENTERED 16 /* Has been entered as symbol. */
235#define OPpCONST_ARYBASE 32 /* Was a $[ translated to constant. */
a0d0e21e 236#define OPpCONST_BARE 64 /* Was a bare word (filehandle?). */
599cee73 237#define OPpCONST_WARNING 128 /* Was a $^W translated to constant. */
79072805 238
239/* Private for OP_FLIP/FLOP */
a0d0e21e 240#define OPpFLIP_LINENUM 64 /* Range arg potentially a line num. */
79072805 241
ed6116ce 242/* Private for OP_LIST */
a0d0e21e 243#define OPpLIST_GUESSED 64 /* Guessed that pushmark was needed. */
244
5f05dabc 245/* Private for OP_DELETE */
54310121 246#define OPpSLICE 64 /* Operating on a list of keys */
5f05dabc 247
afebc493 248/* Private for OP_EXISTS */
249#define OPpEXISTS_SUB 64 /* Checking for &sub, not {} or []. */
250
9c007264 251/* Private for OP_SORT */
252#define OPpSORT_NUMERIC 1 /* Optimized away { $a <=> $b } */
253#define OPpSORT_INTEGER 2 /* Ditto while under "use integer" */
eb209983 254#define OPpSORT_REVERSE 4 /* Reversed sort */
fe1bc4cf 255#define OPpSORT_INPLACE 8 /* sort in-place; eg @a = sort @a */
eb209983 256#define OPpSORT_DESCEND 16 /* Descending sort */
7b9ef140 257#define OPpSORT_QSORT 32 /* Use quicksort (not mergesort) */
258#define OPpSORT_STABLE 64 /* Use a stable algorithm */
259
224a4551 260/* Private for OP_THREADSV */
261#define OPpDONE_SVREF 64 /* Been through newSVREF once */
554b3eca 262
16fe6d59 263/* Private for OP_OPEN and OP_BACKTICK */
264#define OPpOPEN_IN_RAW 16 /* binmode(F,":raw") on input fh */
265#define OPpOPEN_IN_CRLF 32 /* binmode(F,":crlf") on input fh */
266#define OPpOPEN_OUT_RAW 64 /* binmode(F,":raw") on output fh */
267#define OPpOPEN_OUT_CRLF 128 /* binmode(F,":crlf") on output fh */
268
96e176bf 269/* Private for OP_EXIT, HUSH also for OP_DIE */
270#define OPpHUSH_VMSISH 64 /* hush DCL exit msg vmsish mode*/
d98f61e7 271#define OPpEXIT_VMSISH 128 /* exit(0) vs. exit(1) vmsish mode*/
272
0d863452 273/* Private for OP_FTXXX */
1af34c76 274#define OPpFT_ACCESS 2 /* use filetest 'access' */
fbb0b3b3 275#define OPpFT_STACKED 4 /* stacked filetest, as in "-f -x $f" */
1af34c76 276#define OP_IS_FILETEST_ACCESS(op) \
277 (((op)->op_type) == OP_FTRREAD || \
278 ((op)->op_type) == OP_FTRWRITE || \
279 ((op)->op_type) == OP_FTREXEC || \
280 ((op)->op_type) == OP_FTEREAD || \
281 ((op)->op_type) == OP_FTEWRITE || \
282 ((op)->op_type) == OP_FTEEXEC)
283
59f00321 284/* Private for OP_(MAP|GREP)(WHILE|START) */
285#define OPpGREP_LEX 2 /* iterate over lexical $_ */
286
0d863452 287/* Private for OP_ENTEREVAL */
288#define OPpEVAL_HAS_HH 2 /* Does it have a copy of %^H */
289
79072805 290struct op {
291 BASEOP
292};
293
294struct unop {
295 BASEOP
296 OP * op_first;
297};
298
299struct binop {
300 BASEOP
301 OP * op_first;
302 OP * op_last;
303};
304
305struct logop {
306 BASEOP
307 OP * op_first;
308 OP * op_other;
309};
310
79072805 311struct listop {
312 BASEOP
313 OP * op_first;
314 OP * op_last;
79072805 315};
316
317struct pmop {
318 BASEOP
319 OP * op_first;
320 OP * op_last;
5464c149 321 OP * op_pmreplroot; /* (type is really union {OP*,GV*,PADOFFSET}) */
1fcf4c12 322#ifdef USE_ITHREADS
fd1bc7eb 323 IV op_pmoffset;
1fcf4c12 324#else
325 REGEXP * op_pmregexp; /* compiled expression */
326#endif
699a3330 327 U32 op_pmflags;
29f2e912 328 union {
329 OP * op_pmreplstart; /* Only used in OP_SUBST */
cb55de95 330#ifdef USE_ITHREADS
29f2e912 331 char * op_pmstashpv; /* Only used in OP_MATCH, with PMf_ONCE set */
cb55de95 332#else
29f2e912 333 HV * op_pmstash;
cb55de95 334#endif
29f2e912 335 } op_pmstashstartu;
79072805 336};
a0d0e21e 337
1fcf4c12 338#ifdef USE_ITHREADS
ba89bb6e 339#define PM_GETRE(o) (INT2PTR(REGEXP*,SvIVX(PL_regex_pad[(o)->op_pmoffset])))
0bd48802 340#define PM_SETRE(o,r) STMT_START { \
341 SV* const sv = PL_regex_pad[(o)->op_pmoffset]; \
342 sv_setiv(sv, PTR2IV(r)); \
343 } STMT_END
5f8cb046 344#define PM_GETRE_SAFE(o) (PL_regex_pad ? PM_GETRE(o) : (REGEXP*)0)
345#define PM_SETRE_SAFE(o,r) if (PL_regex_pad) PM_SETRE(o,r)
1fcf4c12 346#else
b9ed2502 347#define PM_GETRE(o) ((o)->op_pmregexp)
348#define PM_SETRE(o,r) ((o)->op_pmregexp = (r))
5f8cb046 349#define PM_GETRE_SAFE PM_GETRE
350#define PM_SETRE_SAFE PM_SETRE
1fcf4c12 351#endif
4825b64b 352
48c036b1 353
b3eb6a9b 354#define PMf_RETAINT 0x0001 /* taint $1 etc. if target tainted */
c737faaf 355#define PMf_ONCE 0x0002 /* match successfully only once per
356 reset, with related flag RXf_USED
29f2e912 357 in re->extflags holding state.
358 This is used only for ?? matches,
359 and only on OP_MATCH and OP_QR */
c737faaf 360
699a3330 361#define PMf_UNUSED 0x0004 /* free for use */
ce862d02 362#define PMf_MAYBE_CONST 0x0008 /* replacement contains variables */
c737faaf 363
364#define PMf_USED 0x0010 /* PMf_ONCE has matched successfully.
365 Not used under threading. */
366
a0d0e21e 367#define PMf_CONST 0x0040 /* subst replacement is constant */
368#define PMf_KEEP 0x0080 /* keep 1st runtime pattern forever */
369#define PMf_GLOBAL 0x0100 /* pattern had a g modifier */
c90c0ff4 370#define PMf_CONTINUE 0x0200 /* don't reset pos() if //g fails */
a0d0e21e 371#define PMf_EVAL 0x0400 /* evaluating replacement as expr */
e357fc67 372
373/* The following flags have exact equivalents in regcomp.h with the prefix RXf_
374 * which are stored in the regexp->extflags member.
375 */
cde0cee5 376#define PMf_LOCALE 0x00800 /* use locale for character types */
377#define PMf_MULTILINE 0x01000 /* assume multiple lines */
378#define PMf_SINGLELINE 0x02000 /* assume single line */
379#define PMf_FOLD 0x04000 /* case insensitivity */
380#define PMf_EXTENDED 0x08000 /* chuck embedded whitespace */
381#define PMf_KEEPCOPY 0x10000 /* copy the string when matching */
79072805 382
e357fc67 383/* mask of bits that need to be transfered to re->extflags */
cde0cee5 384#define PMf_COMPILETIME (PMf_MULTILINE|PMf_SINGLELINE|PMf_LOCALE|PMf_FOLD|PMf_EXTENDED|PMf_KEEPCOPY)
8782bef2 385
cb55de95 386#ifdef USE_ITHREADS
05ec9bb3 387
29f2e912 388# define PmopSTASHPV(o) \
389 (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstashpv : NULL)
390# if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
391# define PmopSTASHPV_set(o,pv) ({ \
392 assert((o)->op_pmflags & PMf_ONCE); \
393 ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv)); \
394 })
395# else
396# define PmopSTASHPV_set(o,pv) \
397 ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv))
398# endif
cb55de95 399# define PmopSTASH(o) (PmopSTASHPV(o) \
29f2e912 400 ? gv_stashpv((o)->op_pmstashstartu.op_pmstashpv,GV_ADD) : NULL)
bd61b366 401# define PmopSTASH_set(o,hv) PmopSTASHPV_set(o, ((hv) ? HvNAME_get(hv) : NULL))
05ec9bb3 402# define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o))
403
cb55de95 404#else
29f2e912 405# define PmopSTASH(o) \
406 (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstash : NULL)
407# if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
408# define PmopSTASH_set(o,hv) ({ \
409 assert((o)->op_pmflags & PMf_ONCE); \
410 ((o)->op_pmstashstartu.op_pmstash = (hv)); \
411 })
412# else
413# define PmopSTASH_set(o,hv) ((o)->op_pmstashstartu.op_pmstash = (hv))
414# endif
bd61b366 415# define PmopSTASHPV(o) (PmopSTASH(o) ? HvNAME_get(PmopSTASH(o)) : NULL)
29f2e912 416 /* op_pmstashstartu.op_pmstash is not refcounted */
cb55de95 417# define PmopSTASHPV_set(o,pv) PmopSTASH_set((o), gv_stashpv(pv,GV_ADD))
05ec9bb3 418# define PmopSTASH_free(o)
cb55de95 419#endif
420
79072805 421struct svop {
422 BASEOP
423 SV * op_sv;
424};
425
7934575e 426struct padop {
79072805 427 BASEOP
7934575e 428 PADOFFSET op_padix;
79072805 429};
430
431struct pvop {
432 BASEOP
433 char * op_pv;
434};
435
79072805 436struct loop {
437 BASEOP
438 OP * op_first;
439 OP * op_last;
79072805 440 OP * op_redoop;
441 OP * op_nextop;
442 OP * op_lastop;
443};
444
350de78d 445#define cUNOPx(o) ((UNOP*)o)
446#define cBINOPx(o) ((BINOP*)o)
447#define cLISTOPx(o) ((LISTOP*)o)
448#define cLOGOPx(o) ((LOGOP*)o)
449#define cPMOPx(o) ((PMOP*)o)
450#define cSVOPx(o) ((SVOP*)o)
451#define cPADOPx(o) ((PADOP*)o)
452#define cPVOPx(o) ((PVOP*)o)
453#define cCOPx(o) ((COP*)o)
454#define cLOOPx(o) ((LOOP*)o)
455
456#define cUNOP cUNOPx(PL_op)
457#define cBINOP cBINOPx(PL_op)
458#define cLISTOP cLISTOPx(PL_op)
459#define cLOGOP cLOGOPx(PL_op)
460#define cPMOP cPMOPx(PL_op)
461#define cSVOP cSVOPx(PL_op)
462#define cPADOP cPADOPx(PL_op)
463#define cPVOP cPVOPx(PL_op)
464#define cCOP cCOPx(PL_op)
465#define cLOOP cLOOPx(PL_op)
466
467#define cUNOPo cUNOPx(o)
468#define cBINOPo cBINOPx(o)
469#define cLISTOPo cLISTOPx(o)
470#define cLOGOPo cLOGOPx(o)
471#define cPMOPo cPMOPx(o)
472#define cSVOPo cSVOPx(o)
473#define cPADOPo cPADOPx(o)
474#define cPVOPo cPVOPx(o)
475#define cCOPo cCOPx(o)
476#define cLOOPo cLOOPx(o)
477
478#define kUNOP cUNOPx(kid)
479#define kBINOP cBINOPx(kid)
480#define kLISTOP cLISTOPx(kid)
481#define kLOGOP cLOGOPx(kid)
482#define kPMOP cPMOPx(kid)
483#define kSVOP cSVOPx(kid)
484#define kPADOP cPADOPx(kid)
485#define kPVOP cPVOPx(kid)
486#define kCOP cCOPx(kid)
487#define kLOOP cLOOPx(kid)
488
489
490#ifdef USE_ITHREADS
dd2155a4 491# define cGVOPx_gv(o) ((GV*)PAD_SVl(cPADOPx(o)->op_padix))
cecf5685 492# define IS_PADGV(v) (v && SvTYPE(v) == SVt_PVGV && isGV_with_GP(v) \
493 && GvIN_PAD(v))
7766f137 494# define IS_PADCONST(v) (v && SvREADONLY(v))
495# define cSVOPx_sv(v) (cSVOPx(v)->op_sv \
dd2155a4 496 ? cSVOPx(v)->op_sv : PAD_SVl((v)->op_targ))
638eceb6 497# define cSVOPx_svp(v) (cSVOPx(v)->op_sv \
dd2155a4 498 ? &cSVOPx(v)->op_sv : &PAD_SVl((v)->op_targ))
350de78d 499#else
638eceb6 500# define cGVOPx_gv(o) ((GV*)cSVOPx(o)->op_sv)
743e66e6 501# define IS_PADGV(v) FALSE
7766f137 502# define IS_PADCONST(v) FALSE
503# define cSVOPx_sv(v) (cSVOPx(v)->op_sv)
638eceb6 504# define cSVOPx_svp(v) (&cSVOPx(v)->op_sv)
350de78d 505#endif
79072805 506
638eceb6 507#define cGVOP_gv cGVOPx_gv(PL_op)
508#define cGVOPo_gv cGVOPx_gv(o)
509#define kGVOP_gv cGVOPx_gv(kid)
510#define cSVOP_sv cSVOPx_sv(PL_op)
511#define cSVOPo_sv cSVOPx_sv(o)
512#define kSVOP_sv cSVOPx_sv(kid)
7766f137 513
79072805 514#define Nullop Null(OP*)
515
91135acb 516/* Lowest byte-and-a-bit of PL_opargs */
a0d0e21e 517#define OA_MARK 1
518#define OA_FOLDCONST 2
519#define OA_RETSCALAR 4
520#define OA_TARGET 8
521#define OA_RETINTEGER 16
522#define OA_OTHERINT 32
523#define OA_DANGEROUS 64
524#define OA_DEFGV 128
b162f9ea 525#define OA_TARGLEX 256
a0d0e21e 526
db173bac 527/* The next 4 bits encode op class information */
b162f9ea 528#define OCSHIFT 9
529
530#define OA_CLASS_MASK (15 << OCSHIFT)
531
532#define OA_BASEOP (0 << OCSHIFT)
533#define OA_UNOP (1 << OCSHIFT)
534#define OA_BINOP (2 << OCSHIFT)
535#define OA_LOGOP (3 << OCSHIFT)
1a67a97c 536#define OA_LISTOP (4 << OCSHIFT)
537#define OA_PMOP (5 << OCSHIFT)
538#define OA_SVOP (6 << OCSHIFT)
7934575e 539#define OA_PADOP (7 << OCSHIFT)
1a67a97c 540#define OA_PVOP_OR_SVOP (8 << OCSHIFT)
541#define OA_LOOP (9 << OCSHIFT)
542#define OA_COP (10 << OCSHIFT)
543#define OA_BASEOP_OR_UNOP (11 << OCSHIFT)
544#define OA_FILESTATOP (12 << OCSHIFT)
545#define OA_LOOPEXOP (13 << OCSHIFT)
b162f9ea 546
547#define OASHIFT 13
a0d0e21e 548
4369b173 549/* Remaining nybbles of PL_opargs */
a0d0e21e 550#define OA_SCALAR 1
551#define OA_LIST 2
552#define OA_AVREF 3
553#define OA_HVREF 4
554#define OA_CVREF 5
555#define OA_FILEREF 6
556#define OA_SCALARREF 7
557#define OA_OPTIONAL 8
558
d3c72c2a 559/* Op_REFCNT is a reference count at the head of each op tree: needed
560 * since the tree is shared between threads, and between cloned closure
561 * copies in the same thread. OP_REFCNT_LOCK/UNLOCK is used when modifying
562 * this count.
563 * The same mutex is used to protect the refcounts of the reg_trie_data
564 * and reg_ac_data structures, which are shared between duplicated
565 * regexes.
566 */
567
534825c4 568#ifdef USE_ITHREADS
569# define OP_REFCNT_INIT MUTEX_INIT(&PL_op_mutex)
4026c95a 570# ifdef PERL_CORE
571# define OP_REFCNT_LOCK MUTEX_LOCK(&PL_op_mutex)
572# define OP_REFCNT_UNLOCK MUTEX_UNLOCK(&PL_op_mutex)
573# else
574# define OP_REFCNT_LOCK op_refcnt_lock()
575# define OP_REFCNT_UNLOCK op_refcnt_unlock()
576# endif
534825c4 577# define OP_REFCNT_TERM MUTEX_DESTROY(&PL_op_mutex)
534825c4 578#else
579# define OP_REFCNT_INIT NOOP
580# define OP_REFCNT_LOCK NOOP
581# define OP_REFCNT_UNLOCK NOOP
582# define OP_REFCNT_TERM NOOP
534825c4 583#endif
e4783991 584
282f25c9 585#define OpREFCNT_set(o,n) ((o)->op_targ = (n))
5f66b61c 586#define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : NULL)
282f25c9 587#define OpREFCNT_dec(o) (--(o)->op_targ)
588
e4783991 589/* flags used by Perl_load_module() */
590#define PERL_LOADMOD_DENY 0x1
591#define PERL_LOADMOD_NOIMPORT 0x2
592#define PERL_LOADMOD_IMPORT_OPS 0x4
e5dd39fc 593
a0c21aa1 594#if defined(PERL_IN_PERLY_C) || defined(PERL_IN_OP_C)
e4c5ccf3 595#define ref(o, type) doref(o, type, TRUE)
a0c21aa1 596#endif
e4c5ccf3 597
33f36c71 598/* no longer used anywhere in core */
599#ifndef PERL_CORE
46471bde 600#define cv_ckproto(cv, gv, p) \
601 cv_ckproto_len((cv), (gv), (p), (p) ? strlen(p) : 0)
33f36c71 602#endif
603
e5dd39fc 604#ifdef USE_REENTRANT_API
10bc17b6 605#include "reentr.h"
e5dd39fc 606#endif
607
c7e45529 608#if defined(PL_OP_SLAB_ALLOC)
609#define NewOp(m,var,c,type) \
e91d68d5 610 (var = (type *) Perl_Slab_Alloc(aTHX_ c*sizeof(type)))
c7e45529 611#define NewOpSz(m,var,size) \
e91d68d5 612 (var = (OP *) Perl_Slab_Alloc(aTHX_ size))
c7e45529 613#define FreeOp(p) Perl_Slab_Free(aTHX_ p)
614#else
04e62e51 615#define NewOp(m, var, c, type) \
616 (var = (MEM_WRAP_CHECK_(c,type) \
617 (type*)PerlMemShared_calloc(c, sizeof(type))))
113b9ccf 618#define NewOpSz(m, var, size) \
04e62e51 619 (var = (OP*)PerlMemShared_calloc(1, size))
620#define FreeOp(p) PerlMemShared_free(p)
c7e45529 621#endif
598921a7 622
623#ifdef PERL_MAD
624# define MAD_NULL 1
625# define MAD_PV 2
626# define MAD_OP 3
627# define MAD_SV 4
628
629struct madprop {
630 MADPROP* mad_next;
631 void *mad_val;
632 U32 mad_vlen;
633/* short mad_count; */
634 char mad_key;
635 char mad_type;
636};
637
638struct token {
639 I32 tk_type;
640 YYSTYPE tk_lval;
641 MADPROP* tk_mad;
642};
643#endif
2d910ff8 644
645/*
646 * Values that can be hold by mad_key :
647 * ^ unfilled head spot
648 * , literal ,
649 * ; literal ; (blank if implicit ; at end of block)
650 * : literal : from ?: or attr list
651 * + unary +
652 * ? literal ? from ?:
653 * ( literal (
654 * ) literal )
655 * [ literal [
656 * ] literal ]
657 * { literal {
658 * } literal }
659 * @ literal @ sigil
660 * $ literal $ sigil
661 * * literal * sigil
662 * ! use is source filtered
663 * & & or sub
664 * # whitespace/comment following ; or }
665 * # $# sigil
666 * 1 1st ; from for(;;)
667 * 1 retired protasis
668 * 2 2nd ; from for(;;)
669 * 2 retired apodosis
670 * 3 C-style for list
671 * a sub or var attributes
672 * a non-method arrow operator
673 * A method arrow operator
674 * A use import args
675 * b format block
676 * B retired stub block
677 * C constant conditional op
678 * d declarator
679 * D do block
680 * e unreached "else" (see C)
681 * e expression producing E
682 * E tr/E/R/, /E/
683 * f folded constant op
684 * F peg op for format
685 * i if/unless modifier
686 * I if/elsif/unless statement
687 * K retired kid op
688 * l last index of array ($#foo)
689 * L label
690 * m modifier on regex
691 * M my assignment slurped into some other operator's target
692 * n sub or format name
693 * o current operator/declarator name
694 * o else/continue
695 * O generic optimized op
696 * p peg to hold extra whitespace at statement level
697 * P peg op for package declaration
698 * q opening quote
699 * = quoted material
700 * Q closing quote
701 * Q optimized qw//
702 * r expression producing R
703 * R tr/E/R/ s/E/R/
704 * R assign slurped by split
705 * s sub signature
706 * S use import stub (no import)
707 * S retired sort block
708 * t unreached "then" (see C)
709 * U use import op
710 * v private sv of for loop
711 * V use version
712 * w while/until modifier
713 * W while/for statement
714 * x optimized qw
715 * X random thing
716 * _ whitespace/comments preceding anything else
717 * ~ =~ operator
718 */
3f2908ec 719
720/*
721 * Local variables:
722 * c-indentation-style: bsd
723 * c-basic-offset: 4
724 * indent-tabs-mode: t
725 * End:
726 *
727 * ex: set ts=8 sts=4 sw=4 noet:
728 */
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