Commit | Line | Data |
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a0d0e21e | 1 | /* op.h |
79072805 | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
79072805 LW |
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 LW |
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 PJ |
20 | * op_opt Whether or not the op has been optimised by the |
21 | * peephole optimiser. | |
7e5d8ed2 DM |
22 | * |
23 | * See the comments in S_clear_yystack() for more | |
24 | * details on the following three flags: | |
85594c31 | 25 | * |
670f3923 DM |
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 | |
7e5d8ed2 DM |
30 | * op_attached this op (sub)tree has been attached to a CV |
31 | * | |
85594c31 | 32 | * op_spare three spare bits! |
79072805 LW |
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). | |
38 | */ | |
1850c8f9 | 39 | #include "op_reg_common.h" |
79072805 | 40 | |
79072805 | 41 | #define OPCODE U16 |
79072805 | 42 | |
598921a7 NC |
43 | #ifdef PERL_MAD |
44 | # define MADPROP_IN_BASEOP MADPROP* op_madprop; | |
45 | #else | |
46 | # define MADPROP_IN_BASEOP | |
47 | #endif | |
48 | ||
61a59f30 | 49 | typedef PERL_BITFIELD16 Optype; |
0053d415 | 50 | |
0f4eea8f DL |
51 | #ifdef BASEOP_DEFINITION |
52 | #define BASEOP BASEOP_DEFINITION | |
53 | #else | |
79072805 LW |
54 | #define BASEOP \ |
55 | OP* op_next; \ | |
56 | OP* op_sibling; \ | |
16c91539 | 57 | OP* (*op_ppaddr)(pTHX); \ |
598921a7 | 58 | MADPROP_IN_BASEOP \ |
79072805 | 59 | PADOFFSET op_targ; \ |
654eccd5 JD |
60 | PERL_BITFIELD16 op_type:9; \ |
61 | PERL_BITFIELD16 op_opt:1; \ | |
62 | PERL_BITFIELD16 op_latefree:1; \ | |
63 | PERL_BITFIELD16 op_latefreed:1; \ | |
64 | PERL_BITFIELD16 op_attached:1; \ | |
65 | PERL_BITFIELD16 op_spare:3; \ | |
a0d0e21e LW |
66 | U8 op_flags; \ |
67 | U8 op_private; | |
0f4eea8f | 68 | #endif |
79072805 | 69 | |
0053d415 JD |
70 | /* If op_type:9 is changed to :10, also change PUSHEVAL in cop.h. |
71 | Also, if the type of op_type is ever changed (e.g. to PERL_BITFIELD32) | |
72 | then all the other bit-fields before/after it should change their | |
73 | types too to let VC pack them into the same 4 byte integer.*/ | |
17347a51 | 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 | ||
2f8edad0 | 81 | #define OP_GIMME_REVERSE(flags) ((flags) & G_WANT) |
4f911530 | 82 | |
954c1994 | 83 | /* |
ccfc67b7 JH |
84 | =head1 "Gimme" Values |
85 | ||
954c1994 GS |
86 | =for apidoc Amn|U32|GIMME_V |
87 | The XSUB-writer's equivalent to Perl's C<wantarray>. Returns C<G_VOID>, | |
91e74348 | 88 | C<G_SCALAR> or C<G_ARRAY> for void, scalar or list context, |
683d9ad1 | 89 | respectively. See L<perlcall> for a usage example. |
954c1994 GS |
90 | |
91 | =for apidoc Amn|U32|GIMME | |
92 | A backward-compatible version of C<GIMME_V> which can only return | |
93 | C<G_SCALAR> or C<G_ARRAY>; in a void context, it returns C<G_SCALAR>. | |
94 | Deprecated. Use C<GIMME_V> instead. | |
95 | ||
96 | =cut | |
97 | */ | |
98 | ||
533c011a | 99 | #define GIMME_V OP_GIMME(PL_op, block_gimme()) |
79072805 LW |
100 | |
101 | /* Public flags */ | |
54310121 | 102 | |
103 | #define OPf_WANT 3 /* Mask for "want" bits: */ | |
104 | #define OPf_WANT_VOID 1 /* Want nothing */ | |
105 | #define OPf_WANT_SCALAR 2 /* Want single value */ | |
106 | #define OPf_WANT_LIST 3 /* Want list of any length */ | |
79072805 LW |
107 | #define OPf_KIDS 4 /* There is a firstborn child. */ |
108 | #define OPf_PARENS 8 /* This operator was parenthesized. */ | |
463ee0b2 | 109 | /* (Or block needs explicit scope entry.) */ |
a0d0e21e LW |
110 | #define OPf_REF 16 /* Certified reference. */ |
111 | /* (Return container, not containee). */ | |
112 | #define OPf_MOD 32 /* Will modify (lvalue). */ | |
113 | #define OPf_STACKED 64 /* Some arg is arriving on the stack. */ | |
79072805 LW |
114 | #define OPf_SPECIAL 128 /* Do something weird for this op: */ |
115 | /* On local LVAL, don't init local value. */ | |
116 | /* On OP_SORT, subroutine is inlined. */ | |
117 | /* On OP_NOT, inversion was implicit. */ | |
a0d0e21e | 118 | /* On OP_LEAVE, don't restore curpm. */ |
79072805 LW |
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 $@ */ |
0ac6acae | 126 | /* On pushre, rx is used as part of split, e.g. split " " */ |
497711e7 | 127 | /* On regcomp, "use re 'eval'" was in scope */ |
7c6fadd6 | 128 | /* On OP_READLINE, was <$filehandle> */ |
17fda545 NC |
129 | /* On RV2[ACGHS]V, don't create GV--in |
130 | defined()*/ | |
5df8de69 DM |
131 | /* On OP_DBSTATE, indicates breakpoint |
132 | * (runtime property) */ | |
6b514a0d | 133 | /* On OP_REQUIRE, was seen as CORE::require */ |
0d863452 | 134 | /* On OP_ENTERWHEN, there's no condition */ |
0d863452 | 135 | /* On OP_SMARTMATCH, an implicit smartmatch */ |
78c72037 NC |
136 | /* On OP_ANONHASH and OP_ANONLIST, create a |
137 | reference to the new anon hash or array */ | |
9711599e CS |
138 | /* On OP_HELEM and OP_HSLICE, localization will be followed |
139 | by assignment, so do not wipe the target if it is special | |
140 | (e.g. a glob or a magic SV) */ | |
2474a784 FC |
141 | /* On OP_MATCH, OP_SUBST & OP_TRANS, the |
142 | operand of a logical or conditional | |
143 | that was optimised away, so it should | |
144 | not be bound via =~ */ | |
6b7c6d95 | 145 | /* On OP_CONST, from a constant CV */ |
d1bea3d8 | 146 | /* On OP_GLOB, use Perl glob function */ |
79072805 | 147 | |
54310121 | 148 | /* old names; don't use in new code, but don't break them, either */ |
d91ab173 GS |
149 | #define OPf_LIST OPf_WANT_LIST |
150 | #define OPf_KNOW OPf_WANT | |
954c1994 | 151 | |
54310121 | 152 | #define GIMME \ |
62a559b8 NIS |
153 | (PL_op->op_flags & OPf_WANT \ |
154 | ? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \ | |
d91ab173 GS |
155 | ? G_ARRAY \ |
156 | : G_SCALAR) \ | |
157 | : dowantarray()) | |
54310121 | 158 | |
1dafeec8 GG |
159 | /* Lower bits of op_private often carry the number of arguments, as |
160 | * set by newBINOP, newUNOP and ck_fun */ | |
161 | ||
51a68671 | 162 | /* NOTE: OP_NEXTSTATE and OP_DBSTATE (i.e. COPs) carry lower |
d41ff1b8 GS |
163 | * bits of PL_hints in op_private */ |
164 | ||
a0d0e21e | 165 | /* Private for lvalues */ |
cd06dffe | 166 | #define OPpLVAL_INTRO 128 /* Lvalue must be localized or lvalue sub */ |
a0d0e21e | 167 | |
1dafeec8 GG |
168 | /* Private for OPs with TARGLEX */ |
169 | /* (lower bits may carry MAXARG) */ | |
170 | #define OPpTARGET_MY 16 /* Target is PADMY. */ | |
171 | ||
7934575e GS |
172 | /* Private for OP_LEAVE, OP_LEAVESUB, OP_LEAVESUBLV and OP_LEAVEWRITE */ |
173 | #define OPpREFCOUNTED 64 /* op_targ carries a refcount */ | |
174 | ||
a0d0e21e LW |
175 | /* Private for OP_AASSIGN */ |
176 | #define OPpASSIGN_COMMON 64 /* Left & right have syms in common. */ | |
177 | ||
178 | /* Private for OP_SASSIGN */ | |
179 | #define OPpASSIGN_BACKWARDS 64 /* Left & right switched. */ | |
e26df76a | 180 | #define OPpASSIGN_CV_TO_GV 128 /* Possible optimisation for constants. */ |
79072805 | 181 | |
c90c0ff4 | 182 | /* Private for OP_MATCH and OP_SUBST{,CONST} */ |
183 | #define OPpRUNTIME 64 /* Pattern coming in on the stack */ | |
184 | ||
79072805 | 185 | /* Private for OP_TRANS */ |
4757a243 LW |
186 | #define OPpTRANS_FROM_UTF 1 |
187 | #define OPpTRANS_TO_UTF 2 | |
383e7cdd | 188 | #define OPpTRANS_IDENTICAL 4 /* right side is same as left */ |
4757a243 | 189 | #define OPpTRANS_SQUASH 8 |
59f00321 | 190 | /* 16 is used for OPpTARGET_MY */ |
4757a243 LW |
191 | #define OPpTRANS_COMPLEMENT 32 |
192 | #define OPpTRANS_GROWS 64 | |
59f00321 RGS |
193 | #define OPpTRANS_DELETE 128 |
194 | #define OPpTRANS_ALL (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|OPpTRANS_SQUASH|OPpTRANS_COMPLEMENT|OPpTRANS_GROWS|OPpTRANS_DELETE) | |
79072805 LW |
195 | |
196 | /* Private for OP_REPEAT */ | |
a0d0e21e | 197 | #define OPpREPEAT_DOLIST 64 /* List replication. */ |
79072805 | 198 | |
cf2dc985 | 199 | /* Private for OP_RV2GV, OP_RV2SV, OP_AELEM, OP_HELEM, OP_PADSV */ |
314d4778 | 200 | #define OPpDEREF (32|64) /* autovivify: Want ref to something: */ |
5f05dabc | 201 | #define OPpDEREF_AV 32 /* Want ref to AV. */ |
202 | #define OPpDEREF_HV 64 /* Want ref to HV. */ | |
203 | #define OPpDEREF_SV (32|64) /* Want ref to SV. */ | |
777d9014 | 204 | |
68dc0745 | 205 | /* OP_ENTERSUB only */ |
206 | #define OPpENTERSUB_DB 16 /* Debug subroutine. */ | |
6c5d4499 GG |
207 | #define OPpENTERSUB_HASTARG 4 /* Called from OP tree. */ |
208 | #define OPpENTERSUB_INARGS 1 /* Lval used as arg to a sub. */ | |
0e9700df | 209 | /* used by OPpDEREF (32|64) */ |
1dafeec8 | 210 | /* used by HINT_STRICT_SUBS 2 */ |
777d9014 FC |
211 | /* Mask for OP_ENTERSUB flags, the absence of which must be propagated |
212 | in dynamic context */ | |
213 | #define OPpENTERSUB_LVAL_MASK (OPpLVAL_INTRO|OPpENTERSUB_INARGS) | |
214 | ||
d4ddbae8 | 215 | /* OP_RV2CV only */ |
68dc0745 | 216 | #define OPpENTERSUB_AMPER 8 /* Used & form to call. */ |
9675f7ac | 217 | #define OPpENTERSUB_NOPAREN 128 /* bare sub call (without parens) */ |
d4ddbae8 FC |
218 | #define OPpMAY_RETURN_CONSTANT 1 /* If a constant sub, return the constant */ |
219 | ||
76cd736e GS |
220 | /* OP_GV only */ |
221 | #define OPpEARLY_CV 32 /* foo() called before sub foo was parsed */ | |
68dc0745 | 222 | /* OP_?ELEM only */ |
223 | #define OPpLVAL_DEFER 16 /* Defer creation of array/hash elem */ | |
241416b8 | 224 | /* OP_RV2?V, OP_GVSV, OP_ENTERITER only */ |
78f9721b | 225 | #define OPpOUR_INTRO 16 /* Variable was in an our() */ |
6a8709a6 FC |
226 | /* OP_RV2[AGH]V, OP_PAD[AH]V, OP_[AH]ELEM, OP_[AH]SLICE OP_AV2ARYLEN, |
227 | OP_R?KEYS, OP_SUBSTR, OP_POS, OP_VEC */ | |
78f9721b | 228 | #define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */ |
952306ac RGS |
229 | /* OP_PADSV only */ |
230 | #define OPpPAD_STATE 16 /* is a "state" pad */ | |
192587c2 | 231 | /* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */ |
79072805 | 232 | |
e26df76a | 233 | /* OP_RV2GV only */ |
cb0d96b9 | 234 | #define OPpDONT_INIT_GV 4 /* Call gv_fetchpv with GV_NOINIT */ |
e26df76a NC |
235 | /* (Therefore will return whatever is currently in the symbol table, not |
236 | guaranteed to be a PVGV) */ | |
237 | ||
ef3e5ea9 NC |
238 | /* Private for OP_ENTERITER and OP_ITER */ |
239 | #define OPpITER_REVERSED 4 /* for (reverse ...) */ | |
0d863452 | 240 | #define OPpITER_DEF 8 /* for $_ or for my $_ */ |
ef3e5ea9 | 241 | |
79072805 | 242 | /* Private for OP_CONST */ |
468aa647 | 243 | #define OPpCONST_NOVER 2 /* no 6; */ |
e7fec78e | 244 | #define OPpCONST_SHORTCIRCUIT 4 /* eg the constant 5 in (5 || foo) */ |
486ec47a | 245 | #define OPpCONST_STRICT 8 /* bareword subject to strict 'subs' */ |
748a9306 LW |
246 | #define OPpCONST_ENTERED 16 /* Has been entered as symbol. */ |
247 | #define OPpCONST_ARYBASE 32 /* Was a $[ translated to constant. */ | |
a0d0e21e | 248 | #define OPpCONST_BARE 64 /* Was a bare word (filehandle?). */ |
599cee73 | 249 | #define OPpCONST_WARNING 128 /* Was a $^W translated to constant. */ |
79072805 LW |
250 | |
251 | /* Private for OP_FLIP/FLOP */ | |
a0d0e21e | 252 | #define OPpFLIP_LINENUM 64 /* Range arg potentially a line num. */ |
79072805 | 253 | |
ed6116ce | 254 | /* Private for OP_LIST */ |
a0d0e21e LW |
255 | #define OPpLIST_GUESSED 64 /* Guessed that pushmark was needed. */ |
256 | ||
5f05dabc | 257 | /* Private for OP_DELETE */ |
54310121 | 258 | #define OPpSLICE 64 /* Operating on a list of keys */ |
7332a6c4 | 259 | /* Also OPpLVAL_INTRO (128) */ |
5f05dabc | 260 | |
afebc493 GS |
261 | /* Private for OP_EXISTS */ |
262 | #define OPpEXISTS_SUB 64 /* Checking for &sub, not {} or []. */ | |
263 | ||
9c007264 JH |
264 | /* Private for OP_SORT */ |
265 | #define OPpSORT_NUMERIC 1 /* Optimized away { $a <=> $b } */ | |
266 | #define OPpSORT_INTEGER 2 /* Ditto while under "use integer" */ | |
eb209983 | 267 | #define OPpSORT_REVERSE 4 /* Reversed sort */ |
fe1bc4cf | 268 | #define OPpSORT_INPLACE 8 /* sort in-place; eg @a = sort @a */ |
eb209983 | 269 | #define OPpSORT_DESCEND 16 /* Descending sort */ |
7b9ef140 RH |
270 | #define OPpSORT_QSORT 32 /* Use quicksort (not mergesort) */ |
271 | #define OPpSORT_STABLE 64 /* Use a stable algorithm */ | |
272 | ||
484c818f VP |
273 | /* Private for OP_REVERSE */ |
274 | #define OPpREVERSE_INPLACE 8 /* reverse in-place (@a = reverse @a) */ | |
275 | ||
16fe6d59 GS |
276 | /* Private for OP_OPEN and OP_BACKTICK */ |
277 | #define OPpOPEN_IN_RAW 16 /* binmode(F,":raw") on input fh */ | |
278 | #define OPpOPEN_IN_CRLF 32 /* binmode(F,":crlf") on input fh */ | |
279 | #define OPpOPEN_OUT_RAW 64 /* binmode(F,":raw") on output fh */ | |
280 | #define OPpOPEN_OUT_CRLF 128 /* binmode(F,":crlf") on output fh */ | |
281 | ||
96e176bf CL |
282 | /* Private for OP_EXIT, HUSH also for OP_DIE */ |
283 | #define OPpHUSH_VMSISH 64 /* hush DCL exit msg vmsish mode*/ | |
d98f61e7 GS |
284 | #define OPpEXIT_VMSISH 128 /* exit(0) vs. exit(1) vmsish mode*/ |
285 | ||
0d863452 | 286 | /* Private for OP_FTXXX */ |
1af34c76 | 287 | #define OPpFT_ACCESS 2 /* use filetest 'access' */ |
bbd91306 GG |
288 | #define OPpFT_STACKED 4 /* stacked filetest, as "-f" in "-f -x $f" */ |
289 | #define OPpFT_STACKING 8 /* stacking filetest, as "-x" in "-f -x $f" */ | |
1af34c76 | 290 | |
59f00321 RGS |
291 | /* Private for OP_(MAP|GREP)(WHILE|START) */ |
292 | #define OPpGREP_LEX 2 /* iterate over lexical $_ */ | |
293 | ||
0d863452 RH |
294 | /* Private for OP_ENTEREVAL */ |
295 | #define OPpEVAL_HAS_HH 2 /* Does it have a copy of %^H */ | |
296 | ||
93f0bc49 FC |
297 | /* Private for OP_CALLER and OP_WANTARRAY */ |
298 | #define OPpOFFBYONE 128 /* Treat caller(1) as caller(2) */ | |
299 | ||
e664e0a4 FC |
300 | /* Private for OP_COREARGS */ |
301 | /* These must not conflict with OPpDONT_INIT_GV. See pp.c:S_rv2gv. */ | |
302 | #define OPpCOREARGS_DEREF1 1 /* Arg 1 is a handle constructor */ | |
303 | #define OPpCOREARGS_DEREF2 2 /* Arg 2 is a handle constructor */ | |
cb85b2db | 304 | #define OPpCOREARGS_SCALARMOD 64 /* \$ rather than \[$@%*] */ |
0b19d81a | 305 | #define OPpCOREARGS_PUSHMARK 128 /* Call pp_pushmark */ |
e664e0a4 | 306 | |
79072805 LW |
307 | struct op { |
308 | BASEOP | |
309 | }; | |
310 | ||
311 | struct unop { | |
312 | BASEOP | |
313 | OP * op_first; | |
314 | }; | |
315 | ||
316 | struct binop { | |
317 | BASEOP | |
318 | OP * op_first; | |
319 | OP * op_last; | |
320 | }; | |
321 | ||
322 | struct logop { | |
323 | BASEOP | |
324 | OP * op_first; | |
325 | OP * op_other; | |
326 | }; | |
327 | ||
79072805 LW |
328 | struct listop { |
329 | BASEOP | |
330 | OP * op_first; | |
331 | OP * op_last; | |
79072805 LW |
332 | }; |
333 | ||
334 | struct pmop { | |
335 | BASEOP | |
336 | OP * op_first; | |
337 | OP * op_last; | |
1fcf4c12 | 338 | #ifdef USE_ITHREADS |
fd1bc7eb | 339 | IV op_pmoffset; |
1fcf4c12 AB |
340 | #else |
341 | REGEXP * op_pmregexp; /* compiled expression */ | |
342 | #endif | |
69bdead3 | 343 | U32 op_pmflags; |
29f2e912 | 344 | union { |
20e98b0f NC |
345 | OP * op_pmreplroot; /* For OP_SUBST */ |
346 | #ifdef USE_ITHREADS | |
347 | PADOFFSET op_pmtargetoff; /* For OP_PUSHRE */ | |
348 | #else | |
349 | GV * op_pmtargetgv; | |
350 | #endif | |
351 | } op_pmreplrootu; | |
352 | union { | |
29f2e912 | 353 | OP * op_pmreplstart; /* Only used in OP_SUBST */ |
cb55de95 | 354 | #ifdef USE_ITHREADS |
29f2e912 | 355 | char * op_pmstashpv; /* Only used in OP_MATCH, with PMf_ONCE set */ |
cb55de95 | 356 | #else |
29f2e912 | 357 | HV * op_pmstash; |
cb55de95 | 358 | #endif |
29f2e912 | 359 | } op_pmstashstartu; |
79072805 | 360 | }; |
a0d0e21e | 361 | |
1fcf4c12 | 362 | #ifdef USE_ITHREADS |
14a49a24 NC |
363 | #define PM_GETRE(o) (SvTYPE(PL_regex_pad[(o)->op_pmoffset]) == SVt_REGEXP \ |
364 | ? (REGEXP*)(PL_regex_pad[(o)->op_pmoffset]) : NULL) | |
ede1273d NC |
365 | /* The assignment is just to enforce type safety (or at least get a warning). |
366 | */ | |
14a49a24 NC |
367 | /* With first class regexps not via a reference one needs to assign |
368 | &PL_sv_undef under ithreads. (This would probably work unthreaded, but NULL | |
369 | is cheaper. I guess we could allow NULL, but the check above would get | |
370 | more complex, and we'd have an AV with (SV*)NULL in it, which feels bad */ | |
371 | /* BEWARE - something that calls this macro passes (r) which has a side | |
372 | effect. */ | |
ede1273d | 373 | #define PM_SETRE(o,r) STMT_START { \ |
b1bc3f34 | 374 | REGEXP *const _pm_setre = (r); \ |
7948fc08 | 375 | assert(_pm_setre); \ |
b1bc3f34 | 376 | PL_regex_pad[(o)->op_pmoffset] = MUTABLE_SV(_pm_setre); \ |
ede1273d | 377 | } STMT_END |
1fcf4c12 | 378 | #else |
b9ed2502 AB |
379 | #define PM_GETRE(o) ((o)->op_pmregexp) |
380 | #define PM_SETRE(o,r) ((o)->op_pmregexp = (r)) | |
1fcf4c12 | 381 | #endif |
4825b64b | 382 | |
beae72ee KW |
383 | /* Leave some space, so future bit allocations can go either in the shared or |
384 | * unshared area without affecting binary compatibility */ | |
df7a8460 | 385 | #define PMf_BASE_SHIFT (_RXf_PMf_SHIFT_NEXT+6) |
f4a4cecb | 386 | |
ef07e810 | 387 | /* 'use re "taint"' in scope: taint $1 etc. if target tainted */ |
1ad4ec54 | 388 | #define PMf_RETAINT (1<<(PMf_BASE_SHIFT+0)) |
c737faaf | 389 | |
c0f1c194 KW |
390 | /* match successfully only once per reset, with related flag RXf_USED in |
391 | * re->extflags holding state. This is used only for ?? matches, and only on | |
392 | * OP_MATCH and OP_QR */ | |
1ad4ec54 | 393 | #define PMf_ONCE (1<<(PMf_BASE_SHIFT+1)) |
1850c8f9 KW |
394 | |
395 | /* replacement contains variables */ | |
1ad4ec54 | 396 | #define PMf_MAYBE_CONST (1<<(PMf_BASE_SHIFT+2)) |
1850c8f9 KW |
397 | |
398 | /* PMf_ONCE has matched successfully. Not used under threading. */ | |
1ad4ec54 | 399 | #define PMf_USED (1<<(PMf_BASE_SHIFT+3)) |
1850c8f9 KW |
400 | |
401 | /* subst replacement is constant */ | |
1ad4ec54 | 402 | #define PMf_CONST (1<<(PMf_BASE_SHIFT+4)) |
c737faaf | 403 | |
1850c8f9 | 404 | /* keep 1st runtime pattern forever */ |
1ad4ec54 | 405 | #define PMf_KEEP (1<<(PMf_BASE_SHIFT+5)) |
4da3eb8b | 406 | |
1ad4ec54 | 407 | #define PMf_GLOBAL (1<<(PMf_BASE_SHIFT+6)) /* pattern had a g modifier */ |
c737faaf | 408 | |
1850c8f9 | 409 | /* don't reset pos() if //g fails */ |
1ad4ec54 | 410 | #define PMf_CONTINUE (1<<(PMf_BASE_SHIFT+7)) |
1850c8f9 KW |
411 | |
412 | /* evaluating replacement as expr */ | |
1ad4ec54 | 413 | #define PMf_EVAL (1<<(PMf_BASE_SHIFT+8)) |
c0f1c194 KW |
414 | |
415 | /* Return substituted string instead of modifying it. */ | |
1ad4ec54 | 416 | #define PMf_NONDESTRUCT (1<<(PMf_BASE_SHIFT+9)) |
e357fc67 | 417 | |
1ad4ec54 | 418 | #if PMf_BASE_SHIFT+9 > 31 |
32cdcf9d | 419 | # error Too many PMf_ bits used. See above and regnodes.h for any spare in middle |
1850c8f9 | 420 | #endif |
79072805 | 421 | |
cb55de95 | 422 | #ifdef USE_ITHREADS |
05ec9bb3 | 423 | |
29f2e912 NC |
424 | # define PmopSTASHPV(o) \ |
425 | (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstashpv : NULL) | |
426 | # if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) | |
427 | # define PmopSTASHPV_set(o,pv) ({ \ | |
428 | assert((o)->op_pmflags & PMf_ONCE); \ | |
429 | ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv)); \ | |
430 | }) | |
431 | # else | |
432 | # define PmopSTASHPV_set(o,pv) \ | |
433 | ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv)) | |
434 | # endif | |
cb55de95 | 435 | # define PmopSTASH(o) (PmopSTASHPV(o) \ |
29f2e912 | 436 | ? gv_stashpv((o)->op_pmstashstartu.op_pmstashpv,GV_ADD) : NULL) |
bd61b366 | 437 | # define PmopSTASH_set(o,hv) PmopSTASHPV_set(o, ((hv) ? HvNAME_get(hv) : NULL)) |
05ec9bb3 NIS |
438 | # define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o)) |
439 | ||
cb55de95 | 440 | #else |
29f2e912 NC |
441 | # define PmopSTASH(o) \ |
442 | (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstash : NULL) | |
443 | # if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) | |
444 | # define PmopSTASH_set(o,hv) ({ \ | |
445 | assert((o)->op_pmflags & PMf_ONCE); \ | |
446 | ((o)->op_pmstashstartu.op_pmstash = (hv)); \ | |
447 | }) | |
448 | # else | |
449 | # define PmopSTASH_set(o,hv) ((o)->op_pmstashstartu.op_pmstash = (hv)) | |
450 | # endif | |
bd61b366 | 451 | # define PmopSTASHPV(o) (PmopSTASH(o) ? HvNAME_get(PmopSTASH(o)) : NULL) |
29f2e912 | 452 | /* op_pmstashstartu.op_pmstash is not refcounted */ |
cb55de95 | 453 | # define PmopSTASHPV_set(o,pv) PmopSTASH_set((o), gv_stashpv(pv,GV_ADD)) |
c4bd3ae5 NC |
454 | /* Note that if this becomes non-empty, then S_forget_pmop in op.c will need |
455 | changing */ | |
05ec9bb3 | 456 | # define PmopSTASH_free(o) |
cb55de95 JH |
457 | #endif |
458 | ||
79072805 LW |
459 | struct svop { |
460 | BASEOP | |
461 | SV * op_sv; | |
462 | }; | |
463 | ||
7934575e | 464 | struct padop { |
79072805 | 465 | BASEOP |
7934575e | 466 | PADOFFSET op_padix; |
79072805 LW |
467 | }; |
468 | ||
469 | struct pvop { | |
470 | BASEOP | |
471 | char * op_pv; | |
472 | }; | |
473 | ||
79072805 LW |
474 | struct loop { |
475 | BASEOP | |
476 | OP * op_first; | |
477 | OP * op_last; | |
79072805 LW |
478 | OP * op_redoop; |
479 | OP * op_nextop; | |
480 | OP * op_lastop; | |
481 | }; | |
482 | ||
350de78d GS |
483 | #define cUNOPx(o) ((UNOP*)o) |
484 | #define cBINOPx(o) ((BINOP*)o) | |
485 | #define cLISTOPx(o) ((LISTOP*)o) | |
486 | #define cLOGOPx(o) ((LOGOP*)o) | |
487 | #define cPMOPx(o) ((PMOP*)o) | |
488 | #define cSVOPx(o) ((SVOP*)o) | |
489 | #define cPADOPx(o) ((PADOP*)o) | |
490 | #define cPVOPx(o) ((PVOP*)o) | |
491 | #define cCOPx(o) ((COP*)o) | |
492 | #define cLOOPx(o) ((LOOP*)o) | |
493 | ||
494 | #define cUNOP cUNOPx(PL_op) | |
495 | #define cBINOP cBINOPx(PL_op) | |
496 | #define cLISTOP cLISTOPx(PL_op) | |
497 | #define cLOGOP cLOGOPx(PL_op) | |
498 | #define cPMOP cPMOPx(PL_op) | |
499 | #define cSVOP cSVOPx(PL_op) | |
500 | #define cPADOP cPADOPx(PL_op) | |
501 | #define cPVOP cPVOPx(PL_op) | |
502 | #define cCOP cCOPx(PL_op) | |
503 | #define cLOOP cLOOPx(PL_op) | |
504 | ||
505 | #define cUNOPo cUNOPx(o) | |
506 | #define cBINOPo cBINOPx(o) | |
507 | #define cLISTOPo cLISTOPx(o) | |
508 | #define cLOGOPo cLOGOPx(o) | |
509 | #define cPMOPo cPMOPx(o) | |
510 | #define cSVOPo cSVOPx(o) | |
511 | #define cPADOPo cPADOPx(o) | |
512 | #define cPVOPo cPVOPx(o) | |
513 | #define cCOPo cCOPx(o) | |
514 | #define cLOOPo cLOOPx(o) | |
515 | ||
516 | #define kUNOP cUNOPx(kid) | |
517 | #define kBINOP cBINOPx(kid) | |
518 | #define kLISTOP cLISTOPx(kid) | |
519 | #define kLOGOP cLOGOPx(kid) | |
520 | #define kPMOP cPMOPx(kid) | |
521 | #define kSVOP cSVOPx(kid) | |
522 | #define kPADOP cPADOPx(kid) | |
523 | #define kPVOP cPVOPx(kid) | |
524 | #define kCOP cCOPx(kid) | |
525 | #define kLOOP cLOOPx(kid) | |
526 | ||
527 | ||
528 | #ifdef USE_ITHREADS | |
dd2155a4 | 529 | # define cGVOPx_gv(o) ((GV*)PAD_SVl(cPADOPx(o)->op_padix)) |
cecf5685 NC |
530 | # define IS_PADGV(v) (v && SvTYPE(v) == SVt_PVGV && isGV_with_GP(v) \ |
531 | && GvIN_PAD(v)) | |
7766f137 GS |
532 | # define IS_PADCONST(v) (v && SvREADONLY(v)) |
533 | # define cSVOPx_sv(v) (cSVOPx(v)->op_sv \ | |
dd2155a4 | 534 | ? cSVOPx(v)->op_sv : PAD_SVl((v)->op_targ)) |
638eceb6 | 535 | # define cSVOPx_svp(v) (cSVOPx(v)->op_sv \ |
dd2155a4 | 536 | ? &cSVOPx(v)->op_sv : &PAD_SVl((v)->op_targ)) |
350de78d | 537 | #else |
638eceb6 | 538 | # define cGVOPx_gv(o) ((GV*)cSVOPx(o)->op_sv) |
743e66e6 | 539 | # define IS_PADGV(v) FALSE |
7766f137 GS |
540 | # define IS_PADCONST(v) FALSE |
541 | # define cSVOPx_sv(v) (cSVOPx(v)->op_sv) | |
638eceb6 | 542 | # define cSVOPx_svp(v) (&cSVOPx(v)->op_sv) |
350de78d | 543 | #endif |
79072805 | 544 | |
638eceb6 GS |
545 | #define cGVOP_gv cGVOPx_gv(PL_op) |
546 | #define cGVOPo_gv cGVOPx_gv(o) | |
547 | #define kGVOP_gv cGVOPx_gv(kid) | |
548 | #define cSVOP_sv cSVOPx_sv(PL_op) | |
549 | #define cSVOPo_sv cSVOPx_sv(o) | |
550 | #define kSVOP_sv cSVOPx_sv(kid) | |
7766f137 | 551 | |
bcabcc50 NC |
552 | #ifndef PERL_CORE |
553 | # define Nullop ((OP*)NULL) | |
554 | #endif | |
79072805 | 555 | |
cee4176c | 556 | /* Lowest byte of PL_opargs */ |
a0d0e21e LW |
557 | #define OA_MARK 1 |
558 | #define OA_FOLDCONST 2 | |
559 | #define OA_RETSCALAR 4 | |
560 | #define OA_TARGET 8 | |
903fd87c | 561 | #define OA_TARGLEX 16 |
a0d0e21e LW |
562 | #define OA_OTHERINT 32 |
563 | #define OA_DANGEROUS 64 | |
564 | #define OA_DEFGV 128 | |
565 | ||
db173bac | 566 | /* The next 4 bits encode op class information */ |
903fd87c | 567 | #define OCSHIFT 8 |
b162f9ea IZ |
568 | |
569 | #define OA_CLASS_MASK (15 << OCSHIFT) | |
570 | ||
571 | #define OA_BASEOP (0 << OCSHIFT) | |
572 | #define OA_UNOP (1 << OCSHIFT) | |
573 | #define OA_BINOP (2 << OCSHIFT) | |
574 | #define OA_LOGOP (3 << OCSHIFT) | |
1a67a97c SM |
575 | #define OA_LISTOP (4 << OCSHIFT) |
576 | #define OA_PMOP (5 << OCSHIFT) | |
577 | #define OA_SVOP (6 << OCSHIFT) | |
7934575e | 578 | #define OA_PADOP (7 << OCSHIFT) |
1a67a97c SM |
579 | #define OA_PVOP_OR_SVOP (8 << OCSHIFT) |
580 | #define OA_LOOP (9 << OCSHIFT) | |
581 | #define OA_COP (10 << OCSHIFT) | |
582 | #define OA_BASEOP_OR_UNOP (11 << OCSHIFT) | |
583 | #define OA_FILESTATOP (12 << OCSHIFT) | |
584 | #define OA_LOOPEXOP (13 << OCSHIFT) | |
b162f9ea | 585 | |
903fd87c | 586 | #define OASHIFT 12 |
a0d0e21e | 587 | |
4369b173 | 588 | /* Remaining nybbles of PL_opargs */ |
a0d0e21e LW |
589 | #define OA_SCALAR 1 |
590 | #define OA_LIST 2 | |
591 | #define OA_AVREF 3 | |
592 | #define OA_HVREF 4 | |
593 | #define OA_CVREF 5 | |
594 | #define OA_FILEREF 6 | |
595 | #define OA_SCALARREF 7 | |
596 | #define OA_OPTIONAL 8 | |
597 | ||
d3c72c2a DM |
598 | /* Op_REFCNT is a reference count at the head of each op tree: needed |
599 | * since the tree is shared between threads, and between cloned closure | |
600 | * copies in the same thread. OP_REFCNT_LOCK/UNLOCK is used when modifying | |
601 | * this count. | |
602 | * The same mutex is used to protect the refcounts of the reg_trie_data | |
603 | * and reg_ac_data structures, which are shared between duplicated | |
604 | * regexes. | |
605 | */ | |
606 | ||
534825c4 GS |
607 | #ifdef USE_ITHREADS |
608 | # define OP_REFCNT_INIT MUTEX_INIT(&PL_op_mutex) | |
4026c95a SH |
609 | # ifdef PERL_CORE |
610 | # define OP_REFCNT_LOCK MUTEX_LOCK(&PL_op_mutex) | |
611 | # define OP_REFCNT_UNLOCK MUTEX_UNLOCK(&PL_op_mutex) | |
612 | # else | |
613 | # define OP_REFCNT_LOCK op_refcnt_lock() | |
614 | # define OP_REFCNT_UNLOCK op_refcnt_unlock() | |
615 | # endif | |
534825c4 | 616 | # define OP_REFCNT_TERM MUTEX_DESTROY(&PL_op_mutex) |
534825c4 GS |
617 | #else |
618 | # define OP_REFCNT_INIT NOOP | |
619 | # define OP_REFCNT_LOCK NOOP | |
620 | # define OP_REFCNT_UNLOCK NOOP | |
621 | # define OP_REFCNT_TERM NOOP | |
534825c4 | 622 | #endif |
e4783991 | 623 | |
282f25c9 | 624 | #define OpREFCNT_set(o,n) ((o)->op_targ = (n)) |
fc97af9c NC |
625 | #ifdef PERL_DEBUG_READONLY_OPS |
626 | # define OpREFCNT_inc(o) Perl_op_refcnt_inc(aTHX_ o) | |
627 | # define OpREFCNT_dec(o) Perl_op_refcnt_dec(aTHX_ o) | |
628 | #else | |
629 | # define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : NULL) | |
630 | # define OpREFCNT_dec(o) (--(o)->op_targ) | |
631 | #endif | |
282f25c9 | 632 | |
e4783991 | 633 | /* flags used by Perl_load_module() */ |
ec6d81ab RGS |
634 | #define PERL_LOADMOD_DENY 0x1 /* no Module */ |
635 | #define PERL_LOADMOD_NOIMPORT 0x2 /* use Module () */ | |
636 | #define PERL_LOADMOD_IMPORT_OPS 0x4 /* use Module (...) */ | |
e5dd39fc | 637 | |
a0c21aa1 | 638 | #if defined(PERL_IN_PERLY_C) || defined(PERL_IN_OP_C) |
e4c5ccf3 | 639 | #define ref(o, type) doref(o, type, TRUE) |
a0c21aa1 | 640 | #endif |
e4c5ccf3 | 641 | |
5983a79d BM |
642 | /* |
643 | =head1 Optree Manipulation Functions | |
644 | ||
645 | =for apidoc Am|OP*|LINKLIST|OP *o | |
646 | Given the root of an optree, link the tree in execution order using the | |
647 | C<op_next> pointers and return the first op executed. If this has | |
648 | already been done, it will not be redone, and C<< o->op_next >> will be | |
649 | returned. If C<< o->op_next >> is not already set, I<o> should be at | |
650 | least an C<UNOP>. | |
651 | ||
652 | =cut | |
653 | */ | |
654 | ||
655 | #define LINKLIST(o) ((o)->op_next ? (o)->op_next : op_linklist((OP*)o)) | |
656 | ||
33f36c71 NC |
657 | /* no longer used anywhere in core */ |
658 | #ifndef PERL_CORE | |
46471bde NC |
659 | #define cv_ckproto(cv, gv, p) \ |
660 | cv_ckproto_len((cv), (gv), (p), (p) ? strlen(p) : 0) | |
33f36c71 NC |
661 | #endif |
662 | ||
7d0905b9 NC |
663 | #ifdef PERL_CORE |
664 | # define my(o) my_attrs((o), NULL) | |
665 | #endif | |
666 | ||
e5dd39fc | 667 | #ifdef USE_REENTRANT_API |
10bc17b6 | 668 | #include "reentr.h" |
e5dd39fc AB |
669 | #endif |
670 | ||
c7e45529 AE |
671 | #if defined(PL_OP_SLAB_ALLOC) |
672 | #define NewOp(m,var,c,type) \ | |
e91d68d5 | 673 | (var = (type *) Perl_Slab_Alloc(aTHX_ c*sizeof(type))) |
c7e45529 | 674 | #define NewOpSz(m,var,size) \ |
e91d68d5 | 675 | (var = (OP *) Perl_Slab_Alloc(aTHX_ size)) |
c7e45529 AE |
676 | #define FreeOp(p) Perl_Slab_Free(aTHX_ p) |
677 | #else | |
04e62e51 NC |
678 | #define NewOp(m, var, c, type) \ |
679 | (var = (MEM_WRAP_CHECK_(c,type) \ | |
680 | (type*)PerlMemShared_calloc(c, sizeof(type)))) | |
113b9ccf | 681 | #define NewOpSz(m, var, size) \ |
04e62e51 NC |
682 | (var = (OP*)PerlMemShared_calloc(1, size)) |
683 | #define FreeOp(p) PerlMemShared_free(p) | |
c7e45529 | 684 | #endif |
598921a7 | 685 | |
1930840b | 686 | struct block_hooks { |
52db365a | 687 | U32 bhk_flags; |
1930840b BM |
688 | void (*bhk_start) (pTHX_ int full); |
689 | void (*bhk_pre_end) (pTHX_ OP **seq); | |
690 | void (*bhk_post_end) (pTHX_ OP **seq); | |
52db365a | 691 | void (*bhk_eval) (pTHX_ OP *const saveop); |
1930840b BM |
692 | }; |
693 | ||
fd85fad2 BM |
694 | /* |
695 | =head1 Compile-time scope hooks | |
696 | ||
3e4ddde5 | 697 | =for apidoc mx|U32|BhkFLAGS|BHK *hk |
fd85fad2 BM |
698 | Return the BHK's flags. |
699 | ||
3e4ddde5 | 700 | =for apidoc mx|void *|BhkENTRY|BHK *hk|which |
fd85fad2 BM |
701 | Return an entry from the BHK structure. I<which> is a preprocessor token |
702 | indicating which entry to return. If the appropriate flag is not set | |
703 | this will return NULL. The type of the return value depends on which | |
704 | entry you ask for. | |
705 | ||
3e4ddde5 | 706 | =for apidoc Amx|void|BhkENTRY_set|BHK *hk|which|void *ptr |
fd85fad2 BM |
707 | Set an entry in the BHK structure, and set the flags to indicate it is |
708 | valid. I<which> is a preprocessing token indicating which entry to set. | |
709 | The type of I<ptr> depends on the entry. | |
710 | ||
3e4ddde5 | 711 | =for apidoc Amx|void|BhkDISABLE|BHK *hk|which |
a3e07c87 BM |
712 | Temporarily disable an entry in this BHK structure, by clearing the |
713 | appropriate flag. I<which> is a preprocessor token indicating which | |
714 | entry to disable. | |
715 | ||
3e4ddde5 | 716 | =for apidoc Amx|void|BhkENABLE|BHK *hk|which |
a3e07c87 BM |
717 | Re-enable an entry in this BHK structure, by setting the appropriate |
718 | flag. I<which> is a preprocessor token indicating which entry to enable. | |
719 | This will assert (under -DDEBUGGING) if the entry doesn't contain a valid | |
720 | pointer. | |
721 | ||
3e4ddde5 | 722 | =for apidoc mx|void|CALL_BLOCK_HOOKS|which|arg |
fd85fad2 BM |
723 | Call all the registered block hooks for type I<which>. I<which> is a |
724 | preprocessing token; the type of I<arg> depends on I<which>. | |
725 | ||
726 | =cut | |
727 | */ | |
728 | ||
52db365a BM |
729 | #define BhkFLAGS(hk) ((hk)->bhk_flags) |
730 | ||
a88d97bf BM |
731 | #define BHKf_bhk_start 0x01 |
732 | #define BHKf_bhk_pre_end 0x02 | |
733 | #define BHKf_bhk_post_end 0x04 | |
734 | #define BHKf_bhk_eval 0x08 | |
52db365a BM |
735 | |
736 | #define BhkENTRY(hk, which) \ | |
a88d97bf | 737 | ((BhkFLAGS(hk) & BHKf_ ## which) ? ((hk)->which) : NULL) |
52db365a | 738 | |
a3e07c87 BM |
739 | #define BhkENABLE(hk, which) \ |
740 | STMT_START { \ | |
741 | BhkFLAGS(hk) |= BHKf_ ## which; \ | |
742 | assert(BhkENTRY(hk, which)); \ | |
743 | } STMT_END | |
744 | ||
745 | #define BhkDISABLE(hk, which) \ | |
746 | STMT_START { \ | |
747 | BhkFLAGS(hk) &= ~(BHKf_ ## which); \ | |
748 | } STMT_END | |
749 | ||
52db365a BM |
750 | #define BhkENTRY_set(hk, which, ptr) \ |
751 | STMT_START { \ | |
a88d97bf | 752 | (hk)->which = ptr; \ |
a3e07c87 | 753 | BhkENABLE(hk, which); \ |
52db365a BM |
754 | } STMT_END |
755 | ||
1930840b BM |
756 | #define CALL_BLOCK_HOOKS(which, arg) \ |
757 | STMT_START { \ | |
758 | if (PL_blockhooks) { \ | |
759 | I32 i; \ | |
760 | for (i = av_len(PL_blockhooks); i >= 0; i--) { \ | |
761 | SV *sv = AvARRAY(PL_blockhooks)[i]; \ | |
52db365a | 762 | BHK *hk; \ |
1930840b BM |
763 | \ |
764 | assert(SvIOK(sv)); \ | |
765 | if (SvUOK(sv)) \ | |
52db365a | 766 | hk = INT2PTR(BHK *, SvUVX(sv)); \ |
1930840b | 767 | else \ |
52db365a | 768 | hk = INT2PTR(BHK *, SvIVX(sv)); \ |
1930840b | 769 | \ |
52db365a | 770 | if (BhkENTRY(hk, which)) \ |
16c91539 | 771 | BhkENTRY(hk, which)(aTHX_ arg); \ |
1930840b BM |
772 | } \ |
773 | } \ | |
774 | } STMT_END | |
775 | ||
d9088386 Z |
776 | /* flags for rv2cv_op_cv */ |
777 | ||
778 | #define RV2CVOPCV_MARK_EARLY 0x00000001 | |
779 | #define RV2CVOPCV_RETURN_NAME_GV 0x00000002 | |
780 | ||
d3d7d28f FC |
781 | #define op_lvalue(op,t) Perl_op_lvalue_flags(aTHX_ op,t,0) |
782 | ||
f5d552b4 FC |
783 | /* flags for op_lvalue_flags */ |
784 | ||
785 | #define OP_LVALUE_NO_CROAK 1 | |
786 | ||
9733086d BM |
787 | /* |
788 | =head1 Custom Operators | |
789 | ||
790 | =for apidoc Am|U32|XopFLAGS|XOP *xop | |
791 | Return the XOP's flags. | |
792 | ||
793 | =for apidoc Am||XopENTRY|XOP *xop|which | |
794 | Return a member of the XOP structure. I<which> is a cpp token indicating | |
795 | which entry to return. If the member is not set this will return a | |
796 | default value. The return type depends on I<which>. | |
797 | ||
798 | =for apidoc Am|void|XopENTRY_set|XOP *xop|which|value | |
799 | Set a member of the XOP structure. I<which> is a cpp token indicating | |
800 | which entry to set. See L<perlguts/"Custom Operators"> for details about | |
801 | the available members and how they are used. | |
802 | ||
803 | =for apidoc Am|void|XopDISABLE|XOP *xop|which | |
804 | Temporarily disable a member of the XOP, by clearing the appropriate flag. | |
805 | ||
806 | =for apidoc Am|void|XopENABLE|XOP *xop|which | |
807 | Reenable a member of the XOP which has been disabled. | |
808 | ||
809 | =cut | |
810 | */ | |
811 | ||
1830b3d9 BM |
812 | struct custom_op { |
813 | U32 xop_flags; | |
814 | const char *xop_name; | |
815 | const char *xop_desc; | |
816 | U32 xop_class; | |
817 | void (*xop_peep)(pTHX_ OP *o, OP *oldop); | |
818 | }; | |
819 | ||
820 | #define XopFLAGS(xop) ((xop)->xop_flags) | |
821 | ||
822 | #define XOPf_xop_name 0x01 | |
823 | #define XOPf_xop_desc 0x02 | |
824 | #define XOPf_xop_class 0x04 | |
825 | #define XOPf_xop_peep 0x08 | |
826 | ||
827 | #define XOPd_xop_name PL_op_name[OP_CUSTOM] | |
828 | #define XOPd_xop_desc PL_op_desc[OP_CUSTOM] | |
829 | #define XOPd_xop_class OA_BASEOP | |
830 | #define XOPd_xop_peep ((Perl_cpeep_t)0) | |
831 | ||
832 | #define XopENTRY_set(xop, which, to) \ | |
833 | STMT_START { \ | |
834 | (xop)->which = (to); \ | |
835 | (xop)->xop_flags |= XOPf_ ## which; \ | |
836 | } STMT_END | |
837 | ||
838 | #define XopENTRY(xop, which) \ | |
839 | ((XopFLAGS(xop) & XOPf_ ## which) ? (xop)->which : XOPd_ ## which) | |
840 | ||
841 | #define XopDISABLE(xop, which) ((xop)->xop_flags &= ~XOPf_ ## which) | |
842 | #define XopENABLE(xop, which) \ | |
843 | STMT_START { \ | |
844 | (xop)->xop_flags |= XOPf_ ## which; \ | |
845 | assert(XopENTRY(xop, which)); \ | |
846 | } STMT_END | |
847 | ||
9733086d BM |
848 | /* |
849 | =head1 Optree Manipulation Functions | |
850 | ||
851 | =for apidoc Am|const char *|OP_NAME|OP *o | |
852 | Return the name of the provided OP. For core ops this looks up the name | |
853 | from the op_type; for custom ops from the op_ppaddr. | |
854 | ||
855 | =for apidoc Am|const char *|OP_DESC|OP *o | |
856 | Return a short description of the provided OP. | |
857 | ||
858 | =for apidoc Am|U32|OP_CLASS|OP *o | |
859 | Return the class of the provided OP: that is, which of the *OP | |
860 | structures it uses. For core ops this currently gets the information out | |
861 | of PL_opargs, which does not always accurately reflect the type used. | |
862 | For custom ops the type is returned from the registration, and it is up | |
863 | to the registree to ensure it is accurate. The value returned will be | |
864 | one of the OA_* constants from op.h. | |
865 | ||
866 | =cut | |
867 | */ | |
868 | ||
1830b3d9 BM |
869 | #define OP_NAME(o) ((o)->op_type == OP_CUSTOM \ |
870 | ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_name) \ | |
871 | : PL_op_name[(o)->op_type]) | |
872 | #define OP_DESC(o) ((o)->op_type == OP_CUSTOM \ | |
873 | ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_desc) \ | |
874 | : PL_op_desc[(o)->op_type]) | |
875 | #define OP_CLASS(o) ((o)->op_type == OP_CUSTOM \ | |
876 | ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_class) \ | |
877 | : (PL_opargs[(o)->op_type] & OA_CLASS_MASK)) | |
878 | ||
7bff8c33 NC |
879 | #define newSUB(f, o, p, b) Perl_newATTRSUB(aTHX_ (f), (o), (p), NULL, (b)) |
880 | ||
598921a7 NC |
881 | #ifdef PERL_MAD |
882 | # define MAD_NULL 1 | |
883 | # define MAD_PV 2 | |
884 | # define MAD_OP 3 | |
885 | # define MAD_SV 4 | |
886 | ||
887 | struct madprop { | |
888 | MADPROP* mad_next; | |
d503a9ba | 889 | void *mad_val; |
598921a7 NC |
890 | U32 mad_vlen; |
891 | /* short mad_count; */ | |
892 | char mad_key; | |
893 | char mad_type; | |
894 | }; | |
895 | ||
896 | struct token { | |
897 | I32 tk_type; | |
898 | YYSTYPE tk_lval; | |
899 | MADPROP* tk_mad; | |
900 | }; | |
901 | #endif | |
2d910ff8 RGS |
902 | |
903 | /* | |
2b3def87 | 904 | * Values that can be held by mad_key : |
2d910ff8 RGS |
905 | * ^ unfilled head spot |
906 | * , literal , | |
907 | * ; literal ; (blank if implicit ; at end of block) | |
908 | * : literal : from ?: or attr list | |
909 | * + unary + | |
910 | * ? literal ? from ?: | |
911 | * ( literal ( | |
912 | * ) literal ) | |
913 | * [ literal [ | |
914 | * ] literal ] | |
915 | * { literal { | |
916 | * } literal } | |
917 | * @ literal @ sigil | |
918 | * $ literal $ sigil | |
919 | * * literal * sigil | |
920 | * ! use is source filtered | |
921 | * & & or sub | |
922 | * # whitespace/comment following ; or } | |
923 | * # $# sigil | |
924 | * 1 1st ; from for(;;) | |
925 | * 1 retired protasis | |
926 | * 2 2nd ; from for(;;) | |
927 | * 2 retired apodosis | |
928 | * 3 C-style for list | |
929 | * a sub or var attributes | |
930 | * a non-method arrow operator | |
931 | * A method arrow operator | |
932 | * A use import args | |
933 | * b format block | |
934 | * B retired stub block | |
935 | * C constant conditional op | |
936 | * d declarator | |
937 | * D do block | |
938 | * e unreached "else" (see C) | |
939 | * e expression producing E | |
940 | * E tr/E/R/, /E/ | |
941 | * f folded constant op | |
942 | * F peg op for format | |
63575281 | 943 | * g op was forced to be a word |
2d910ff8 RGS |
944 | * i if/unless modifier |
945 | * I if/elsif/unless statement | |
dde83331 | 946 | * k local declarator |
2d910ff8 RGS |
947 | * K retired kid op |
948 | * l last index of array ($#foo) | |
949 | * L label | |
950 | * m modifier on regex | |
2d910ff8 RGS |
951 | * n sub or format name |
952 | * o current operator/declarator name | |
953 | * o else/continue | |
954 | * O generic optimized op | |
955 | * p peg to hold extra whitespace at statement level | |
956 | * P peg op for package declaration | |
957 | * q opening quote | |
958 | * = quoted material | |
959 | * Q closing quote | |
960 | * Q optimized qw// | |
961 | * r expression producing R | |
962 | * R tr/E/R/ s/E/R/ | |
2d910ff8 RGS |
963 | * s sub signature |
964 | * S use import stub (no import) | |
965 | * S retired sort block | |
966 | * t unreached "then" (see C) | |
967 | * U use import op | |
968 | * v private sv of for loop | |
969 | * V use version | |
970 | * w while/until modifier | |
971 | * W while/for statement | |
972 | * x optimized qw | |
973 | * X random thing | |
974 | * _ whitespace/comments preceding anything else | |
975 | * ~ =~ operator | |
976 | */ | |
3f2908ec NC |
977 | |
978 | /* | |
979 | * Local variables: | |
980 | * c-indentation-style: bsd | |
981 | * c-basic-offset: 4 | |
982 | * indent-tabs-mode: t | |
983 | * End: | |
984 | * | |
985 | * ex: set ts=8 sts=4 sw=4 noet: | |
986 | */ |