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a0d0e21e 1/* op.h
79072805 2 *
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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
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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 *
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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.
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PJ
20 * op_opt Whether or not the op has been optimised by the
21 * peephole optimiser.
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22 *
23 * See the comments in S_clear_yystack() for more
24 * details on the following three flags:
85594c31 25 *
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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
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30 * op_attached this op (sub)tree has been attached to a CV
31 *
85594c31 32 * op_spare three spare bits!
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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
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43#ifdef PERL_MAD
44# define MADPROP_IN_BASEOP MADPROP* op_madprop;
45#else
46# define MADPROP_IN_BASEOP
47#endif
48
61a59f30 49typedef PERL_BITFIELD16 Optype;
0053d415 50
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51#ifdef BASEOP_DEFINITION
52#define BASEOP BASEOP_DEFINITION
53#else
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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; \
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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; \
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66 U8 op_flags; \
67 U8 op_private;
0f4eea8f 68#endif
79072805 69
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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
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PP
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/*
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84=head1 "Gimme" Values
85
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86=for apidoc Amn|U32|GIMME_V
87The XSUB-writer's equivalent to Perl's C<wantarray>. Returns C<G_VOID>,
91e74348 88C<G_SCALAR> or C<G_ARRAY> for void, scalar or list context,
683d9ad1 89respectively. See L<perlcall> for a usage example.
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90
91=for apidoc Amn|U32|GIMME
92A backward-compatible version of C<GIMME_V> which can only return
93C<G_SCALAR> or C<G_ARRAY>; in a void context, it returns C<G_SCALAR>.
94Deprecated. Use C<GIMME_V> instead.
95
96=cut
97*/
98
533c011a 99#define GIMME_V OP_GIMME(PL_op, block_gimme())
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100
101/* Public flags */
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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 */
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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.) */
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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. */
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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. */
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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> */
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129 /* On RV2[ACGHS]V, don't create GV--in
130 defined()*/
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131 /* On OP_DBSTATE, indicates breakpoint
132 * (runtime property) */
6b514a0d 133 /* On OP_REQUIRE, was seen as CORE::require */
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134 /* On OP_(ENTER|LEAVE)WHEN, there's
135 no condition */
0d863452 136 /* On OP_SMARTMATCH, an implicit smartmatch */
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137 /* On OP_ANONHASH and OP_ANONLIST, create a
138 reference to the new anon hash or array */
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139 /* On OP_HELEM and OP_HSLICE, localization will be followed
140 by assignment, so do not wipe the target if it is special
141 (e.g. a glob or a magic SV) */
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142 /* On OP_MATCH, OP_SUBST & OP_TRANS, the
143 operand of a logical or conditional
144 that was optimised away, so it should
145 not be bound via =~ */
6b7c6d95 146 /* On OP_CONST, from a constant CV */
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147 /* On OP_GLOB, two meanings:
148 - Before ck_glob, called as CORE::glob
149 - After ck_glob, use Perl glob function
150 */
79072805 151
54310121 152/* old names; don't use in new code, but don't break them, either */
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153#define OPf_LIST OPf_WANT_LIST
154#define OPf_KNOW OPf_WANT
954c1994 155
54310121 156#define GIMME \
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157 (PL_op->op_flags & OPf_WANT \
158 ? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \
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159 ? G_ARRAY \
160 : G_SCALAR) \
161 : dowantarray())
54310121 162
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163/* Lower bits of op_private often carry the number of arguments, as
164 * set by newBINOP, newUNOP and ck_fun */
165
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166/* NOTE: OP_NEXTSTATE and OP_DBSTATE (i.e. COPs) carry NATIVE_HINTS
167 * in op_private */
d41ff1b8 168
a0d0e21e 169/* Private for lvalues */
cd06dffe 170#define OPpLVAL_INTRO 128 /* Lvalue must be localized or lvalue sub */
a0d0e21e 171
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172/* Private for OPs with TARGLEX */
173 /* (lower bits may carry MAXARG) */
174#define OPpTARGET_MY 16 /* Target is PADMY. */
175
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176/* Private for OP_LEAVE, OP_LEAVESUB, OP_LEAVESUBLV and OP_LEAVEWRITE */
177#define OPpREFCOUNTED 64 /* op_targ carries a refcount */
178
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179/* Private for OP_AASSIGN */
180#define OPpASSIGN_COMMON 64 /* Left & right have syms in common. */
181
182/* Private for OP_SASSIGN */
183#define OPpASSIGN_BACKWARDS 64 /* Left & right switched. */
e26df76a 184#define OPpASSIGN_CV_TO_GV 128 /* Possible optimisation for constants. */
79072805 185
c657ea3a 186/* Private for OP_MATCH and OP_SUBST{,CONT} */
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187#define OPpRUNTIME 64 /* Pattern coming in on the stack */
188
79072805 189/* Private for OP_TRANS */
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190#define OPpTRANS_FROM_UTF 1
191#define OPpTRANS_TO_UTF 2
383e7cdd 192#define OPpTRANS_IDENTICAL 4 /* right side is same as left */
4757a243 193#define OPpTRANS_SQUASH 8
59f00321 194 /* 16 is used for OPpTARGET_MY */
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195#define OPpTRANS_COMPLEMENT 32
196#define OPpTRANS_GROWS 64
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197#define OPpTRANS_DELETE 128
198#define OPpTRANS_ALL (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|OPpTRANS_SQUASH|OPpTRANS_COMPLEMENT|OPpTRANS_GROWS|OPpTRANS_DELETE)
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199
200/* Private for OP_REPEAT */
a0d0e21e 201#define OPpREPEAT_DOLIST 64 /* List replication. */
79072805 202
cf2dc985 203/* Private for OP_RV2GV, OP_RV2SV, OP_AELEM, OP_HELEM, OP_PADSV */
314d4778 204#define OPpDEREF (32|64) /* autovivify: Want ref to something: */
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PP
205#define OPpDEREF_AV 32 /* Want ref to AV. */
206#define OPpDEREF_HV 64 /* Want ref to HV. */
207#define OPpDEREF_SV (32|64) /* Want ref to SV. */
777d9014 208
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209 /* OP_ENTERSUB only */
210#define OPpENTERSUB_DB 16 /* Debug subroutine. */
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211#define OPpENTERSUB_HASTARG 4 /* Called from OP tree. */
212#define OPpENTERSUB_INARGS 1 /* Lval used as arg to a sub. */
0e9700df 213/* used by OPpDEREF (32|64) */
1dafeec8 214/* used by HINT_STRICT_SUBS 2 */
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215 /* Mask for OP_ENTERSUB flags, the absence of which must be propagated
216 in dynamic context */
217#define OPpENTERSUB_LVAL_MASK (OPpLVAL_INTRO|OPpENTERSUB_INARGS)
218
d4ddbae8 219 /* OP_RV2CV only */
68dc0745 220#define OPpENTERSUB_AMPER 8 /* Used & form to call. */
9675f7ac 221#define OPpENTERSUB_NOPAREN 128 /* bare sub call (without parens) */
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222#define OPpMAY_RETURN_CONSTANT 1 /* If a constant sub, return the constant */
223
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224 /* OP_GV only */
225#define OPpEARLY_CV 32 /* foo() called before sub foo was parsed */
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226 /* OP_?ELEM only */
227#define OPpLVAL_DEFER 16 /* Defer creation of array/hash elem */
8dc99089 228 /* OP_RV2[SAH]V, OP_GVSV, OP_ENTERITER only */
78f9721b 229#define OPpOUR_INTRO 16 /* Variable was in an our() */
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230 /* OP_RV2[AGH]V, OP_PAD[AH]V, OP_[AH]ELEM, OP_[AH]SLICE OP_AV2ARYLEN,
231 OP_R?KEYS, OP_SUBSTR, OP_POS, OP_VEC */
78f9721b 232#define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */
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233
234 /* OP_SUBSTR only */
235#define OPpSUBSTR_REPL_FIRST 16 /* 1st arg is replacement string */
236
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237 /* OP_PADSV only */
238#define OPpPAD_STATE 16 /* is a "state" pad */
192587c2 239 /* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */
79072805 240
e26df76a 241 /* OP_RV2GV only */
cb0d96b9 242#define OPpDONT_INIT_GV 4 /* Call gv_fetchpv with GV_NOINIT */
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243/* (Therefore will return whatever is currently in the symbol table, not
244 guaranteed to be a PVGV) */
8dc99089 245#define OPpALLOW_FAKE 16 /* OK to return fake glob */
e26df76a 246
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247/* Private for OP_ENTERITER and OP_ITER */
248#define OPpITER_REVERSED 4 /* for (reverse ...) */
0d863452 249#define OPpITER_DEF 8 /* for $_ or for my $_ */
ef3e5ea9 250
79072805 251/* Private for OP_CONST */
468aa647 252#define OPpCONST_NOVER 2 /* no 6; */
e7fec78e 253#define OPpCONST_SHORTCIRCUIT 4 /* eg the constant 5 in (5 || foo) */
486ec47a 254#define OPpCONST_STRICT 8 /* bareword subject to strict 'subs' */
748a9306 255#define OPpCONST_ENTERED 16 /* Has been entered as symbol. */
a0d0e21e 256#define OPpCONST_BARE 64 /* Was a bare word (filehandle?). */
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257
258/* Private for OP_FLIP/FLOP */
a0d0e21e 259#define OPpFLIP_LINENUM 64 /* Range arg potentially a line num. */
79072805 260
ed6116ce 261/* Private for OP_LIST */
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262#define OPpLIST_GUESSED 64 /* Guessed that pushmark was needed. */
263
5f05dabc 264/* Private for OP_DELETE */
54310121 265#define OPpSLICE 64 /* Operating on a list of keys */
7332a6c4 266/* Also OPpLVAL_INTRO (128) */
5f05dabc 267
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268/* Private for OP_EXISTS */
269#define OPpEXISTS_SUB 64 /* Checking for &sub, not {} or []. */
270
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271/* Private for OP_SORT */
272#define OPpSORT_NUMERIC 1 /* Optimized away { $a <=> $b } */
273#define OPpSORT_INTEGER 2 /* Ditto while under "use integer" */
eb209983 274#define OPpSORT_REVERSE 4 /* Reversed sort */
fe1bc4cf 275#define OPpSORT_INPLACE 8 /* sort in-place; eg @a = sort @a */
eb209983 276#define OPpSORT_DESCEND 16 /* Descending sort */
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277#define OPpSORT_QSORT 32 /* Use quicksort (not mergesort) */
278#define OPpSORT_STABLE 64 /* Use a stable algorithm */
279
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280/* Private for OP_REVERSE */
281#define OPpREVERSE_INPLACE 8 /* reverse in-place (@a = reverse @a) */
282
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283/* Private for OP_OPEN and OP_BACKTICK */
284#define OPpOPEN_IN_RAW 16 /* binmode(F,":raw") on input fh */
285#define OPpOPEN_IN_CRLF 32 /* binmode(F,":crlf") on input fh */
286#define OPpOPEN_OUT_RAW 64 /* binmode(F,":raw") on output fh */
287#define OPpOPEN_OUT_CRLF 128 /* binmode(F,":crlf") on output fh */
288
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289/* Private for OP_EXIT, HUSH also for OP_DIE */
290#define OPpHUSH_VMSISH 64 /* hush DCL exit msg vmsish mode*/
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291#define OPpEXIT_VMSISH 128 /* exit(0) vs. exit(1) vmsish mode*/
292
0d863452 293/* Private for OP_FTXXX */
1af34c76 294#define OPpFT_ACCESS 2 /* use filetest 'access' */
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295#define OPpFT_STACKED 4 /* stacked filetest, as "-f" in "-f -x $f" */
296#define OPpFT_STACKING 8 /* stacking filetest, as "-x" in "-f -x $f" */
8db8f6b6 297#define OPpFT_AFTER_t 16 /* previous op was -t */
1af34c76 298
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299/* Private for OP_(MAP|GREP)(WHILE|START) */
300#define OPpGREP_LEX 2 /* iterate over lexical $_ */
301
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302/* Private for OP_ENTEREVAL */
303#define OPpEVAL_HAS_HH 2 /* Does it have a copy of %^H */
802a15e9 304#define OPpEVAL_UNICODE 4
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FC
305#define OPpEVAL_BYTES 8
306#define OPpEVAL_COPHH 16 /* Construct %^H from cop hints */
0d863452 307
84ed0108 308/* Private for OP_CALLER, OP_WANTARRAY and OP_RUNCV */
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FC
309#define OPpOFFBYONE 128 /* Treat caller(1) as caller(2) */
310
e664e0a4 311/* Private for OP_COREARGS */
8dc99089
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312/* These must not conflict with OPpDONT_INIT_GV or OPpALLOW_FAKE.
313 See pp.c:S_rv2gv. */
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314#define OPpCOREARGS_DEREF1 1 /* Arg 1 is a handle constructor */
315#define OPpCOREARGS_DEREF2 2 /* Arg 2 is a handle constructor */
cb85b2db 316#define OPpCOREARGS_SCALARMOD 64 /* \$ rather than \[$@%*] */
0b19d81a 317#define OPpCOREARGS_PUSHMARK 128 /* Call pp_pushmark */
e664e0a4 318
5db1eb8d
BF
319/* Private for OP_(LAST|REDO|NEXT|GOTO|DUMP) */
320#define OPpPV_IS_UTF8 128 /* label is in UTF8 */
321
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322struct op {
323 BASEOP
324};
325
326struct unop {
327 BASEOP
328 OP * op_first;
329};
330
331struct binop {
332 BASEOP
333 OP * op_first;
334 OP * op_last;
335};
336
337struct logop {
338 BASEOP
339 OP * op_first;
340 OP * op_other;
341};
342
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343struct listop {
344 BASEOP
345 OP * op_first;
346 OP * op_last;
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347};
348
349struct pmop {
350 BASEOP
351 OP * op_first;
352 OP * op_last;
1fcf4c12 353#ifdef USE_ITHREADS
fd1bc7eb 354 IV op_pmoffset;
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AB
355#else
356 REGEXP * op_pmregexp; /* compiled expression */
357#endif
69bdead3 358 U32 op_pmflags;
29f2e912 359 union {
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NC
360 OP * op_pmreplroot; /* For OP_SUBST */
361#ifdef USE_ITHREADS
362 PADOFFSET op_pmtargetoff; /* For OP_PUSHRE */
363#else
364 GV * op_pmtargetgv;
365#endif
366 } op_pmreplrootu;
367 union {
29f2e912 368 OP * op_pmreplstart; /* Only used in OP_SUBST */
cb55de95 369#ifdef USE_ITHREADS
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BF
370 struct {
371 char * op_pmstashpv; /* Only used in OP_MATCH, with PMf_ONCE set */
372 U32 op_pmstashflags; /* currently only SVf_UTF8 or 0 */
373 } op_pmstashthr;
cb55de95 374#else
29f2e912 375 HV * op_pmstash;
cb55de95 376#endif
29f2e912 377 } op_pmstashstartu;
68e2671b 378 OP * op_code_list; /* list of (?{}) code blocks */
79072805 379};
a0d0e21e 380
1fcf4c12 381#ifdef USE_ITHREADS
14a49a24
NC
382#define PM_GETRE(o) (SvTYPE(PL_regex_pad[(o)->op_pmoffset]) == SVt_REGEXP \
383 ? (REGEXP*)(PL_regex_pad[(o)->op_pmoffset]) : NULL)
ede1273d
NC
384/* The assignment is just to enforce type safety (or at least get a warning).
385 */
14a49a24
NC
386/* With first class regexps not via a reference one needs to assign
387 &PL_sv_undef under ithreads. (This would probably work unthreaded, but NULL
388 is cheaper. I guess we could allow NULL, but the check above would get
389 more complex, and we'd have an AV with (SV*)NULL in it, which feels bad */
390/* BEWARE - something that calls this macro passes (r) which has a side
391 effect. */
ede1273d 392#define PM_SETRE(o,r) STMT_START { \
b1bc3f34 393 REGEXP *const _pm_setre = (r); \
7948fc08 394 assert(_pm_setre); \
b1bc3f34 395 PL_regex_pad[(o)->op_pmoffset] = MUTABLE_SV(_pm_setre); \
ede1273d 396 } STMT_END
1fcf4c12 397#else
b9ed2502
AB
398#define PM_GETRE(o) ((o)->op_pmregexp)
399#define PM_SETRE(o,r) ((o)->op_pmregexp = (r))
1fcf4c12 400#endif
4825b64b 401
beae72ee
KW
402/* Leave some space, so future bit allocations can go either in the shared or
403 * unshared area without affecting binary compatibility */
df7a8460 404#define PMf_BASE_SHIFT (_RXf_PMf_SHIFT_NEXT+6)
f4a4cecb 405
ef07e810 406/* 'use re "taint"' in scope: taint $1 etc. if target tainted */
1ad4ec54 407#define PMf_RETAINT (1<<(PMf_BASE_SHIFT+0))
c737faaf 408
c0f1c194
KW
409/* match successfully only once per reset, with related flag RXf_USED in
410 * re->extflags holding state. This is used only for ?? matches, and only on
411 * OP_MATCH and OP_QR */
1ad4ec54 412#define PMf_ONCE (1<<(PMf_BASE_SHIFT+1))
1850c8f9
KW
413
414/* replacement contains variables */
1ad4ec54 415#define PMf_MAYBE_CONST (1<<(PMf_BASE_SHIFT+2))
1850c8f9
KW
416
417/* PMf_ONCE has matched successfully. Not used under threading. */
1ad4ec54 418#define PMf_USED (1<<(PMf_BASE_SHIFT+3))
1850c8f9
KW
419
420/* subst replacement is constant */
1ad4ec54 421#define PMf_CONST (1<<(PMf_BASE_SHIFT+4))
c737faaf 422
1850c8f9 423/* keep 1st runtime pattern forever */
1ad4ec54 424#define PMf_KEEP (1<<(PMf_BASE_SHIFT+5))
4da3eb8b 425
1ad4ec54 426#define PMf_GLOBAL (1<<(PMf_BASE_SHIFT+6)) /* pattern had a g modifier */
c737faaf 427
1850c8f9 428/* don't reset pos() if //g fails */
1ad4ec54 429#define PMf_CONTINUE (1<<(PMf_BASE_SHIFT+7))
1850c8f9
KW
430
431/* evaluating replacement as expr */
1ad4ec54 432#define PMf_EVAL (1<<(PMf_BASE_SHIFT+8))
c0f1c194
KW
433
434/* Return substituted string instead of modifying it. */
1ad4ec54 435#define PMf_NONDESTRUCT (1<<(PMf_BASE_SHIFT+9))
e357fc67 436
1ad4ec54 437#if PMf_BASE_SHIFT+9 > 31
32cdcf9d 438# error Too many PMf_ bits used. See above and regnodes.h for any spare in middle
1850c8f9 439#endif
79072805 440
cb55de95 441#ifdef USE_ITHREADS
05ec9bb3 442
29f2e912 443# define PmopSTASHPV(o) \
0eaf81c5 444 (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstashthr.op_pmstashpv : NULL)
29f2e912
NC
445# if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
446# define PmopSTASHPV_set(o,pv) ({ \
447 assert((o)->op_pmflags & PMf_ONCE); \
0eaf81c5 448 ((o)->op_pmstashstartu.op_pmstashthr.op_pmstashpv = savesharedpv(pv)); \
29f2e912
NC
449 })
450# else
451# define PmopSTASHPV_set(o,pv) \
0eaf81c5 452 ((o)->op_pmstashstartu.op_pmstashthr.op_pmstashpv = savesharedpv(pv))
29f2e912 453# endif
0eaf81c5
BF
454# define PmopSTASH_flags(o) ((o)->op_pmstashstartu.op_pmstashthr.op_pmstashflags)
455# define PmopSTASH_flags_set(o,flags) ((o)->op_pmstashstartu.op_pmstashthr.op_pmstashflags = flags)
456# define PmopSTASH(o) (PmopSTASHPV(o) \
457 ? gv_stashpv((o)->op_pmstashstartu.op_pmstashthr.op_pmstashpv, \
458 GV_ADD | PmopSTASH_flags(o)) : NULL)
459# define PmopSTASH_set(o,hv) (PmopSTASHPV_set(o, (hv) ? HvNAME_get(hv) : NULL), \
460 PmopSTASH_flags_set(o, \
461 ((hv) && HvNAME_HEK(hv) && \
462 HvNAMEUTF8(hv)) \
463 ? SVf_UTF8 \
464 : 0))
05ec9bb3
NIS
465# define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o))
466
cb55de95 467#else
29f2e912
NC
468# define PmopSTASH(o) \
469 (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstash : NULL)
470# if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
471# define PmopSTASH_set(o,hv) ({ \
472 assert((o)->op_pmflags & PMf_ONCE); \
473 ((o)->op_pmstashstartu.op_pmstash = (hv)); \
474 })
475# else
476# define PmopSTASH_set(o,hv) ((o)->op_pmstashstartu.op_pmstash = (hv))
477# endif
bd61b366 478# define PmopSTASHPV(o) (PmopSTASH(o) ? HvNAME_get(PmopSTASH(o)) : NULL)
29f2e912 479 /* op_pmstashstartu.op_pmstash is not refcounted */
cb55de95 480# define PmopSTASHPV_set(o,pv) PmopSTASH_set((o), gv_stashpv(pv,GV_ADD))
c4bd3ae5
NC
481/* Note that if this becomes non-empty, then S_forget_pmop in op.c will need
482 changing */
05ec9bb3 483# define PmopSTASH_free(o)
cb55de95
JH
484#endif
485
79072805
LW
486struct svop {
487 BASEOP
488 SV * op_sv;
489};
490
7934575e 491struct padop {
79072805 492 BASEOP
7934575e 493 PADOFFSET op_padix;
79072805
LW
494};
495
496struct pvop {
497 BASEOP
498 char * op_pv;
499};
500
79072805
LW
501struct loop {
502 BASEOP
503 OP * op_first;
504 OP * op_last;
79072805
LW
505 OP * op_redoop;
506 OP * op_nextop;
507 OP * op_lastop;
508};
509
350de78d
GS
510#define cUNOPx(o) ((UNOP*)o)
511#define cBINOPx(o) ((BINOP*)o)
512#define cLISTOPx(o) ((LISTOP*)o)
513#define cLOGOPx(o) ((LOGOP*)o)
514#define cPMOPx(o) ((PMOP*)o)
515#define cSVOPx(o) ((SVOP*)o)
516#define cPADOPx(o) ((PADOP*)o)
517#define cPVOPx(o) ((PVOP*)o)
518#define cCOPx(o) ((COP*)o)
519#define cLOOPx(o) ((LOOP*)o)
520
521#define cUNOP cUNOPx(PL_op)
522#define cBINOP cBINOPx(PL_op)
523#define cLISTOP cLISTOPx(PL_op)
524#define cLOGOP cLOGOPx(PL_op)
525#define cPMOP cPMOPx(PL_op)
526#define cSVOP cSVOPx(PL_op)
527#define cPADOP cPADOPx(PL_op)
528#define cPVOP cPVOPx(PL_op)
529#define cCOP cCOPx(PL_op)
530#define cLOOP cLOOPx(PL_op)
531
532#define cUNOPo cUNOPx(o)
533#define cBINOPo cBINOPx(o)
534#define cLISTOPo cLISTOPx(o)
535#define cLOGOPo cLOGOPx(o)
536#define cPMOPo cPMOPx(o)
537#define cSVOPo cSVOPx(o)
538#define cPADOPo cPADOPx(o)
539#define cPVOPo cPVOPx(o)
540#define cCOPo cCOPx(o)
541#define cLOOPo cLOOPx(o)
542
543#define kUNOP cUNOPx(kid)
544#define kBINOP cBINOPx(kid)
545#define kLISTOP cLISTOPx(kid)
546#define kLOGOP cLOGOPx(kid)
547#define kPMOP cPMOPx(kid)
548#define kSVOP cSVOPx(kid)
549#define kPADOP cPADOPx(kid)
550#define kPVOP cPVOPx(kid)
551#define kCOP cCOPx(kid)
552#define kLOOP cLOOPx(kid)
553
554
555#ifdef USE_ITHREADS
dd2155a4 556# define cGVOPx_gv(o) ((GV*)PAD_SVl(cPADOPx(o)->op_padix))
cecf5685
NC
557# define IS_PADGV(v) (v && SvTYPE(v) == SVt_PVGV && isGV_with_GP(v) \
558 && GvIN_PAD(v))
7766f137
GS
559# define IS_PADCONST(v) (v && SvREADONLY(v))
560# define cSVOPx_sv(v) (cSVOPx(v)->op_sv \
dd2155a4 561 ? cSVOPx(v)->op_sv : PAD_SVl((v)->op_targ))
638eceb6 562# define cSVOPx_svp(v) (cSVOPx(v)->op_sv \
dd2155a4 563 ? &cSVOPx(v)->op_sv : &PAD_SVl((v)->op_targ))
350de78d 564#else
638eceb6 565# define cGVOPx_gv(o) ((GV*)cSVOPx(o)->op_sv)
743e66e6 566# define IS_PADGV(v) FALSE
7766f137
GS
567# define IS_PADCONST(v) FALSE
568# define cSVOPx_sv(v) (cSVOPx(v)->op_sv)
638eceb6 569# define cSVOPx_svp(v) (&cSVOPx(v)->op_sv)
350de78d 570#endif
79072805 571
638eceb6
GS
572#define cGVOP_gv cGVOPx_gv(PL_op)
573#define cGVOPo_gv cGVOPx_gv(o)
574#define kGVOP_gv cGVOPx_gv(kid)
575#define cSVOP_sv cSVOPx_sv(PL_op)
576#define cSVOPo_sv cSVOPx_sv(o)
577#define kSVOP_sv cSVOPx_sv(kid)
7766f137 578
bcabcc50
NC
579#ifndef PERL_CORE
580# define Nullop ((OP*)NULL)
581#endif
79072805 582
cee4176c 583/* Lowest byte of PL_opargs */
a0d0e21e
LW
584#define OA_MARK 1
585#define OA_FOLDCONST 2
586#define OA_RETSCALAR 4
587#define OA_TARGET 8
903fd87c 588#define OA_TARGLEX 16
a0d0e21e
LW
589#define OA_OTHERINT 32
590#define OA_DANGEROUS 64
591#define OA_DEFGV 128
592
db173bac 593/* The next 4 bits encode op class information */
903fd87c 594#define OCSHIFT 8
b162f9ea
IZ
595
596#define OA_CLASS_MASK (15 << OCSHIFT)
597
598#define OA_BASEOP (0 << OCSHIFT)
599#define OA_UNOP (1 << OCSHIFT)
600#define OA_BINOP (2 << OCSHIFT)
601#define OA_LOGOP (3 << OCSHIFT)
1a67a97c
SM
602#define OA_LISTOP (4 << OCSHIFT)
603#define OA_PMOP (5 << OCSHIFT)
604#define OA_SVOP (6 << OCSHIFT)
7934575e 605#define OA_PADOP (7 << OCSHIFT)
1a67a97c
SM
606#define OA_PVOP_OR_SVOP (8 << OCSHIFT)
607#define OA_LOOP (9 << OCSHIFT)
608#define OA_COP (10 << OCSHIFT)
609#define OA_BASEOP_OR_UNOP (11 << OCSHIFT)
610#define OA_FILESTATOP (12 << OCSHIFT)
611#define OA_LOOPEXOP (13 << OCSHIFT)
b162f9ea 612
903fd87c 613#define OASHIFT 12
a0d0e21e 614
4369b173 615/* Remaining nybbles of PL_opargs */
a0d0e21e
LW
616#define OA_SCALAR 1
617#define OA_LIST 2
618#define OA_AVREF 3
619#define OA_HVREF 4
620#define OA_CVREF 5
621#define OA_FILEREF 6
622#define OA_SCALARREF 7
623#define OA_OPTIONAL 8
624
d3c72c2a
DM
625/* Op_REFCNT is a reference count at the head of each op tree: needed
626 * since the tree is shared between threads, and between cloned closure
627 * copies in the same thread. OP_REFCNT_LOCK/UNLOCK is used when modifying
628 * this count.
629 * The same mutex is used to protect the refcounts of the reg_trie_data
630 * and reg_ac_data structures, which are shared between duplicated
631 * regexes.
632 */
633
534825c4
GS
634#ifdef USE_ITHREADS
635# define OP_REFCNT_INIT MUTEX_INIT(&PL_op_mutex)
4026c95a
SH
636# ifdef PERL_CORE
637# define OP_REFCNT_LOCK MUTEX_LOCK(&PL_op_mutex)
638# define OP_REFCNT_UNLOCK MUTEX_UNLOCK(&PL_op_mutex)
639# else
640# define OP_REFCNT_LOCK op_refcnt_lock()
641# define OP_REFCNT_UNLOCK op_refcnt_unlock()
642# endif
534825c4 643# define OP_REFCNT_TERM MUTEX_DESTROY(&PL_op_mutex)
534825c4
GS
644#else
645# define OP_REFCNT_INIT NOOP
646# define OP_REFCNT_LOCK NOOP
647# define OP_REFCNT_UNLOCK NOOP
648# define OP_REFCNT_TERM NOOP
534825c4 649#endif
e4783991 650
282f25c9 651#define OpREFCNT_set(o,n) ((o)->op_targ = (n))
fc97af9c
NC
652#ifdef PERL_DEBUG_READONLY_OPS
653# define OpREFCNT_inc(o) Perl_op_refcnt_inc(aTHX_ o)
654# define OpREFCNT_dec(o) Perl_op_refcnt_dec(aTHX_ o)
655#else
656# define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : NULL)
657# define OpREFCNT_dec(o) (--(o)->op_targ)
658#endif
282f25c9 659
e4783991 660/* flags used by Perl_load_module() */
ec6d81ab
RGS
661#define PERL_LOADMOD_DENY 0x1 /* no Module */
662#define PERL_LOADMOD_NOIMPORT 0x2 /* use Module () */
663#define PERL_LOADMOD_IMPORT_OPS 0x4 /* use Module (...) */
e5dd39fc 664
a0c21aa1 665#if defined(PERL_IN_PERLY_C) || defined(PERL_IN_OP_C)
e4c5ccf3 666#define ref(o, type) doref(o, type, TRUE)
a0c21aa1 667#endif
e4c5ccf3 668
5983a79d
BM
669/*
670=head1 Optree Manipulation Functions
671
672=for apidoc Am|OP*|LINKLIST|OP *o
673Given the root of an optree, link the tree in execution order using the
674C<op_next> pointers and return the first op executed. If this has
675already been done, it will not be redone, and C<< o->op_next >> will be
676returned. If C<< o->op_next >> is not already set, I<o> should be at
677least an C<UNOP>.
678
679=cut
680*/
681
682#define LINKLIST(o) ((o)->op_next ? (o)->op_next : op_linklist((OP*)o))
683
33f36c71
NC
684/* no longer used anywhere in core */
685#ifndef PERL_CORE
46471bde 686#define cv_ckproto(cv, gv, p) \
f717afa7 687 cv_ckproto_len_flags((cv), (gv), (p), (p) ? strlen(p) : 0, 0)
33f36c71
NC
688#endif
689
7d0905b9
NC
690#ifdef PERL_CORE
691# define my(o) my_attrs((o), NULL)
692#endif
693
e5dd39fc 694#ifdef USE_REENTRANT_API
10bc17b6 695#include "reentr.h"
e5dd39fc
AB
696#endif
697
c7e45529
AE
698#if defined(PL_OP_SLAB_ALLOC)
699#define NewOp(m,var,c,type) \
e91d68d5 700 (var = (type *) Perl_Slab_Alloc(aTHX_ c*sizeof(type)))
c7e45529 701#define NewOpSz(m,var,size) \
e91d68d5 702 (var = (OP *) Perl_Slab_Alloc(aTHX_ size))
c7e45529
AE
703#define FreeOp(p) Perl_Slab_Free(aTHX_ p)
704#else
04e62e51
NC
705#define NewOp(m, var, c, type) \
706 (var = (MEM_WRAP_CHECK_(c,type) \
707 (type*)PerlMemShared_calloc(c, sizeof(type))))
113b9ccf 708#define NewOpSz(m, var, size) \
04e62e51
NC
709 (var = (OP*)PerlMemShared_calloc(1, size))
710#define FreeOp(p) PerlMemShared_free(p)
c7e45529 711#endif
598921a7 712
1930840b 713struct block_hooks {
52db365a 714 U32 bhk_flags;
1930840b
BM
715 void (*bhk_start) (pTHX_ int full);
716 void (*bhk_pre_end) (pTHX_ OP **seq);
717 void (*bhk_post_end) (pTHX_ OP **seq);
52db365a 718 void (*bhk_eval) (pTHX_ OP *const saveop);
1930840b
BM
719};
720
fd85fad2
BM
721/*
722=head1 Compile-time scope hooks
723
3e4ddde5 724=for apidoc mx|U32|BhkFLAGS|BHK *hk
fd85fad2
BM
725Return the BHK's flags.
726
3e4ddde5 727=for apidoc mx|void *|BhkENTRY|BHK *hk|which
fd85fad2
BM
728Return an entry from the BHK structure. I<which> is a preprocessor token
729indicating which entry to return. If the appropriate flag is not set
730this will return NULL. The type of the return value depends on which
731entry you ask for.
732
3e4ddde5 733=for apidoc Amx|void|BhkENTRY_set|BHK *hk|which|void *ptr
fd85fad2
BM
734Set an entry in the BHK structure, and set the flags to indicate it is
735valid. I<which> is a preprocessing token indicating which entry to set.
736The type of I<ptr> depends on the entry.
737
3e4ddde5 738=for apidoc Amx|void|BhkDISABLE|BHK *hk|which
a3e07c87
BM
739Temporarily disable an entry in this BHK structure, by clearing the
740appropriate flag. I<which> is a preprocessor token indicating which
741entry to disable.
742
3e4ddde5 743=for apidoc Amx|void|BhkENABLE|BHK *hk|which
a3e07c87
BM
744Re-enable an entry in this BHK structure, by setting the appropriate
745flag. I<which> is a preprocessor token indicating which entry to enable.
746This will assert (under -DDEBUGGING) if the entry doesn't contain a valid
747pointer.
748
3e4ddde5 749=for apidoc mx|void|CALL_BLOCK_HOOKS|which|arg
fd85fad2
BM
750Call all the registered block hooks for type I<which>. I<which> is a
751preprocessing token; the type of I<arg> depends on I<which>.
752
753=cut
754*/
755
52db365a
BM
756#define BhkFLAGS(hk) ((hk)->bhk_flags)
757
a88d97bf
BM
758#define BHKf_bhk_start 0x01
759#define BHKf_bhk_pre_end 0x02
760#define BHKf_bhk_post_end 0x04
761#define BHKf_bhk_eval 0x08
52db365a
BM
762
763#define BhkENTRY(hk, which) \
a88d97bf 764 ((BhkFLAGS(hk) & BHKf_ ## which) ? ((hk)->which) : NULL)
52db365a 765
a3e07c87
BM
766#define BhkENABLE(hk, which) \
767 STMT_START { \
768 BhkFLAGS(hk) |= BHKf_ ## which; \
769 assert(BhkENTRY(hk, which)); \
770 } STMT_END
771
772#define BhkDISABLE(hk, which) \
773 STMT_START { \
774 BhkFLAGS(hk) &= ~(BHKf_ ## which); \
775 } STMT_END
776
52db365a
BM
777#define BhkENTRY_set(hk, which, ptr) \
778 STMT_START { \
a88d97bf 779 (hk)->which = ptr; \
a3e07c87 780 BhkENABLE(hk, which); \
52db365a
BM
781 } STMT_END
782
1930840b
BM
783#define CALL_BLOCK_HOOKS(which, arg) \
784 STMT_START { \
785 if (PL_blockhooks) { \
786 I32 i; \
787 for (i = av_len(PL_blockhooks); i >= 0; i--) { \
788 SV *sv = AvARRAY(PL_blockhooks)[i]; \
52db365a 789 BHK *hk; \
1930840b
BM
790 \
791 assert(SvIOK(sv)); \
792 if (SvUOK(sv)) \
52db365a 793 hk = INT2PTR(BHK *, SvUVX(sv)); \
1930840b 794 else \
52db365a 795 hk = INT2PTR(BHK *, SvIVX(sv)); \
1930840b 796 \
52db365a 797 if (BhkENTRY(hk, which)) \
16c91539 798 BhkENTRY(hk, which)(aTHX_ arg); \
1930840b
BM
799 } \
800 } \
801 } STMT_END
802
d9088386
Z
803/* flags for rv2cv_op_cv */
804
805#define RV2CVOPCV_MARK_EARLY 0x00000001
806#define RV2CVOPCV_RETURN_NAME_GV 0x00000002
807
d3d7d28f
FC
808#define op_lvalue(op,t) Perl_op_lvalue_flags(aTHX_ op,t,0)
809
f5d552b4
FC
810/* flags for op_lvalue_flags */
811
812#define OP_LVALUE_NO_CROAK 1
813
9733086d
BM
814/*
815=head1 Custom Operators
816
817=for apidoc Am|U32|XopFLAGS|XOP *xop
818Return the XOP's flags.
819
820=for apidoc Am||XopENTRY|XOP *xop|which
821Return a member of the XOP structure. I<which> is a cpp token indicating
822which entry to return. If the member is not set this will return a
823default value. The return type depends on I<which>.
824
825=for apidoc Am|void|XopENTRY_set|XOP *xop|which|value
826Set a member of the XOP structure. I<which> is a cpp token indicating
827which entry to set. See L<perlguts/"Custom Operators"> for details about
828the available members and how they are used.
829
830=for apidoc Am|void|XopDISABLE|XOP *xop|which
831Temporarily disable a member of the XOP, by clearing the appropriate flag.
832
833=for apidoc Am|void|XopENABLE|XOP *xop|which
834Reenable a member of the XOP which has been disabled.
835
836=cut
837*/
838
1830b3d9
BM
839struct custom_op {
840 U32 xop_flags;
841 const char *xop_name;
842 const char *xop_desc;
843 U32 xop_class;
844 void (*xop_peep)(pTHX_ OP *o, OP *oldop);
845};
846
847#define XopFLAGS(xop) ((xop)->xop_flags)
848
849#define XOPf_xop_name 0x01
850#define XOPf_xop_desc 0x02
851#define XOPf_xop_class 0x04
852#define XOPf_xop_peep 0x08
853
854#define XOPd_xop_name PL_op_name[OP_CUSTOM]
855#define XOPd_xop_desc PL_op_desc[OP_CUSTOM]
856#define XOPd_xop_class OA_BASEOP
857#define XOPd_xop_peep ((Perl_cpeep_t)0)
858
859#define XopENTRY_set(xop, which, to) \
860 STMT_START { \
861 (xop)->which = (to); \
862 (xop)->xop_flags |= XOPf_ ## which; \
863 } STMT_END
864
865#define XopENTRY(xop, which) \
866 ((XopFLAGS(xop) & XOPf_ ## which) ? (xop)->which : XOPd_ ## which)
867
868#define XopDISABLE(xop, which) ((xop)->xop_flags &= ~XOPf_ ## which)
869#define XopENABLE(xop, which) \
870 STMT_START { \
871 (xop)->xop_flags |= XOPf_ ## which; \
872 assert(XopENTRY(xop, which)); \
873 } STMT_END
874
9733086d
BM
875/*
876=head1 Optree Manipulation Functions
877
878=for apidoc Am|const char *|OP_NAME|OP *o
879Return the name of the provided OP. For core ops this looks up the name
880from the op_type; for custom ops from the op_ppaddr.
881
882=for apidoc Am|const char *|OP_DESC|OP *o
883Return a short description of the provided OP.
884
885=for apidoc Am|U32|OP_CLASS|OP *o
886Return the class of the provided OP: that is, which of the *OP
887structures it uses. For core ops this currently gets the information out
888of PL_opargs, which does not always accurately reflect the type used.
889For custom ops the type is returned from the registration, and it is up
890to the registree to ensure it is accurate. The value returned will be
891one of the OA_* constants from op.h.
892
893=cut
894*/
895
1830b3d9
BM
896#define OP_NAME(o) ((o)->op_type == OP_CUSTOM \
897 ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_name) \
898 : PL_op_name[(o)->op_type])
899#define OP_DESC(o) ((o)->op_type == OP_CUSTOM \
900 ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_desc) \
901 : PL_op_desc[(o)->op_type])
902#define OP_CLASS(o) ((o)->op_type == OP_CUSTOM \
903 ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_class) \
904 : (PL_opargs[(o)->op_type] & OA_CLASS_MASK))
905
7bff8c33
NC
906#define newSUB(f, o, p, b) Perl_newATTRSUB(aTHX_ (f), (o), (p), NULL, (b))
907
598921a7
NC
908#ifdef PERL_MAD
909# define MAD_NULL 1
910# define MAD_PV 2
911# define MAD_OP 3
912# define MAD_SV 4
913
914struct madprop {
915 MADPROP* mad_next;
d503a9ba 916 void *mad_val;
598921a7
NC
917 U32 mad_vlen;
918/* short mad_count; */
919 char mad_key;
920 char mad_type;
921};
922
923struct token {
924 I32 tk_type;
925 YYSTYPE tk_lval;
926 MADPROP* tk_mad;
927};
928#endif
2d910ff8
RGS
929
930/*
2b3def87 931 * Values that can be held by mad_key :
2d910ff8
RGS
932 * ^ unfilled head spot
933 * , literal ,
934 * ; literal ; (blank if implicit ; at end of block)
935 * : literal : from ?: or attr list
936 * + unary +
937 * ? literal ? from ?:
938 * ( literal (
939 * ) literal )
940 * [ literal [
941 * ] literal ]
942 * { literal {
943 * } literal }
944 * @ literal @ sigil
945 * $ literal $ sigil
946 * * literal * sigil
947 * ! use is source filtered
948 * & & or sub
949 * # whitespace/comment following ; or }
950 * # $# sigil
951 * 1 1st ; from for(;;)
952 * 1 retired protasis
953 * 2 2nd ; from for(;;)
954 * 2 retired apodosis
955 * 3 C-style for list
956 * a sub or var attributes
957 * a non-method arrow operator
958 * A method arrow operator
959 * A use import args
960 * b format block
961 * B retired stub block
962 * C constant conditional op
963 * d declarator
964 * D do block
965 * e unreached "else" (see C)
966 * e expression producing E
967 * E tr/E/R/, /E/
968 * f folded constant op
969 * F peg op for format
63575281 970 * g op was forced to be a word
2d910ff8
RGS
971 * i if/unless modifier
972 * I if/elsif/unless statement
dde83331 973 * k local declarator
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RGS
974 * K retired kid op
975 * l last index of array ($#foo)
976 * L label
977 * m modifier on regex
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RGS
978 * n sub or format name
979 * o current operator/declarator name
980 * o else/continue
981 * O generic optimized op
982 * p peg to hold extra whitespace at statement level
983 * P peg op for package declaration
984 * q opening quote
985 * = quoted material
986 * Q closing quote
987 * Q optimized qw//
988 * r expression producing R
989 * R tr/E/R/ s/E/R/
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990 * s sub signature
991 * S use import stub (no import)
992 * S retired sort block
993 * t unreached "then" (see C)
994 * U use import op
995 * v private sv of for loop
996 * V use version
997 * w while/until modifier
998 * W while/for statement
999 * x optimized qw
1000 * X random thing
1001 * _ whitespace/comments preceding anything else
1002 * ~ =~ operator
1003 */
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NC
1004
1005/*
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Z
1006=head1 Hook manipulation
1007*/
1008
1009#ifdef USE_ITHREADS
1010# define OP_CHECK_MUTEX_INIT MUTEX_INIT(&PL_check_mutex)
1011# define OP_CHECK_MUTEX_LOCK MUTEX_LOCK(&PL_check_mutex)
1012# define OP_CHECK_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_check_mutex)
1013# define OP_CHECK_MUTEX_TERM MUTEX_DESTROY(&PL_check_mutex)
1014#else
1015# define OP_CHECK_MUTEX_INIT NOOP
1016# define OP_CHECK_MUTEX_LOCK NOOP
1017# define OP_CHECK_MUTEX_UNLOCK NOOP
1018# define OP_CHECK_MUTEX_TERM NOOP
1019#endif
1020
1021/*
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1022 * Local variables:
1023 * c-indentation-style: bsd
1024 * c-basic-offset: 4
14d04a33 1025 * indent-tabs-mode: nil
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1026 * End:
1027 *
14d04a33 1028 * ex: set ts=8 sts=4 sw=4 et:
3f2908ec 1029 */