Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* op.c |
79072805 | 2 | * |
4eb8286e | 3 | * Copyright (c) 1991-1999, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "You see: Mr. Drogo, he married poor Miss Primula Brandybuck. She was | |
12 | * our Mr. Bilbo's first cousin on the mother's side (her mother being the | |
13 | * youngest of the Old Took's daughters); and Mr. Drogo was his second | |
14 | * cousin. So Mr. Frodo is his first *and* second cousin, once removed | |
15 | * either way, as the saying is, if you follow me." --the Gaffer | |
79072805 LW |
16 | */ |
17 | ||
18 | #include "EXTERN.h" | |
864dbfa3 | 19 | #define PERL_IN_OP_C |
79072805 LW |
20 | #include "perl.h" |
21 | ||
76e3520e | 22 | #ifdef PERL_OBJECT |
22c35a8c | 23 | #define CHECKCALL this->*PL_check |
76e3520e | 24 | #else |
22c35a8c | 25 | #define CHECKCALL *PL_check |
b7dc083c NIS |
26 | #endif |
27 | ||
28 | /* #define PL_OP_SLAB_ALLOC */ | |
29 | ||
30 | #ifdef PL_OP_SLAB_ALLOC | |
31 | #define SLAB_SIZE 8192 | |
32 | static char *PL_OpPtr = NULL; | |
33 | static int PL_OpSpace = 0; | |
34 | #define NewOp(m,var,c,type) do { if ((PL_OpSpace -= c*sizeof(type)) >= 0) \ | |
35 | var = (type *)(PL_OpPtr -= c*sizeof(type)); \ | |
36 | else \ | |
37 | var = (type *) Slab_Alloc(m,c*sizeof(type)); \ | |
38 | } while (0) | |
39 | ||
864dbfa3 | 40 | STATIC void * |
cea2e8a9 | 41 | S_Slab_Alloc(pTHX_ int m, size_t sz) |
b7dc083c NIS |
42 | { |
43 | Newz(m,PL_OpPtr,SLAB_SIZE,char); | |
44 | PL_OpSpace = SLAB_SIZE - sz; | |
45 | return PL_OpPtr += PL_OpSpace; | |
46 | } | |
76e3520e | 47 | |
b7dc083c NIS |
48 | #else |
49 | #define NewOp(m, var, c, type) Newz(m, var, c, type) | |
50 | #endif | |
e50aee73 | 51 | /* |
5dc0d613 | 52 | * In the following definition, the ", Nullop" is just to make the compiler |
a5f75d66 | 53 | * think the expression is of the right type: croak actually does a Siglongjmp. |
e50aee73 | 54 | */ |
11343788 | 55 | #define CHECKOP(type,o) \ |
3280af22 | 56 | ((PL_op_mask && PL_op_mask[type]) \ |
5dc0d613 | 57 | ? ( op_free((OP*)o), \ |
cea2e8a9 | 58 | Perl_croak(aTHX_ "%s trapped by operation mask", PL_op_desc[type]), \ |
28757baa | 59 | Nullop ) \ |
cea2e8a9 | 60 | : (CHECKCALL[type])(aTHX_ (OP*)o)) |
e50aee73 | 61 | |
c53d7c7d HS |
62 | #define PAD_MAX 999999999 |
63 | ||
76e3520e | 64 | STATIC char* |
cea2e8a9 | 65 | S_gv_ename(pTHX_ GV *gv) |
4633a7c4 | 66 | { |
2d8e6c8d | 67 | STRLEN n_a; |
4633a7c4 | 68 | SV* tmpsv = sv_newmortal(); |
46fc3d4c | 69 | gv_efullname3(tmpsv, gv, Nullch); |
2d8e6c8d | 70 | return SvPV(tmpsv,n_a); |
4633a7c4 LW |
71 | } |
72 | ||
76e3520e | 73 | STATIC OP * |
cea2e8a9 | 74 | S_no_fh_allowed(pTHX_ OP *o) |
79072805 | 75 | { |
cea2e8a9 | 76 | yyerror(Perl_form(aTHX_ "Missing comma after first argument to %s function", |
22c35a8c | 77 | PL_op_desc[o->op_type])); |
11343788 | 78 | return o; |
79072805 LW |
79 | } |
80 | ||
76e3520e | 81 | STATIC OP * |
cea2e8a9 | 82 | S_too_few_arguments(pTHX_ OP *o, char *name) |
79072805 | 83 | { |
cea2e8a9 | 84 | yyerror(Perl_form(aTHX_ "Not enough arguments for %s", name)); |
11343788 | 85 | return o; |
79072805 LW |
86 | } |
87 | ||
76e3520e | 88 | STATIC OP * |
cea2e8a9 | 89 | S_too_many_arguments(pTHX_ OP *o, char *name) |
79072805 | 90 | { |
cea2e8a9 | 91 | yyerror(Perl_form(aTHX_ "Too many arguments for %s", name)); |
11343788 | 92 | return o; |
79072805 LW |
93 | } |
94 | ||
76e3520e | 95 | STATIC void |
cea2e8a9 | 96 | S_bad_type(pTHX_ I32 n, char *t, char *name, OP *kid) |
8990e307 | 97 | { |
cea2e8a9 | 98 | yyerror(Perl_form(aTHX_ "Type of arg %d to %s must be %s (not %s)", |
22c35a8c | 99 | (int)n, name, t, PL_op_desc[kid->op_type])); |
8990e307 LW |
100 | } |
101 | ||
7a52d87a | 102 | STATIC void |
cea2e8a9 | 103 | S_no_bareword_allowed(pTHX_ OP *o) |
7a52d87a | 104 | { |
cea2e8a9 | 105 | Perl_warn(aTHX_ "Bareword \"%s\" not allowed while \"strict subs\" in use", |
7a52d87a GS |
106 | SvPV_nolen(cSVOPo->op_sv)); |
107 | ++PL_error_count; | |
108 | } | |
109 | ||
79072805 LW |
110 | /* "register" allocation */ |
111 | ||
112 | PADOFFSET | |
864dbfa3 | 113 | Perl_pad_allocmy(pTHX_ char *name) |
93a17b20 | 114 | { |
11343788 | 115 | dTHR; |
a0d0e21e LW |
116 | PADOFFSET off; |
117 | SV *sv; | |
118 | ||
834a4ddd LW |
119 | if (!( |
120 | isALPHA(name[1]) || | |
121 | (PL_hints & HINT_UTF8 && (name[1] & 0xc0) == 0xc0) || | |
122 | name[1] == '_' && (int)strlen(name) > 2)) | |
123 | { | |
c4d0567e | 124 | if (!isPRINT(name[1]) || strchr("\t\n\r\f", name[1])) { |
2b92dfce GS |
125 | /* 1999-02-27 mjd@plover.com */ |
126 | char *p; | |
127 | p = strchr(name, '\0'); | |
128 | /* The next block assumes the buffer is at least 205 chars | |
129 | long. At present, it's always at least 256 chars. */ | |
130 | if (p-name > 200) { | |
131 | strcpy(name+200, "..."); | |
132 | p = name+199; | |
133 | } | |
134 | else { | |
135 | p[1] = '\0'; | |
136 | } | |
137 | /* Move everything else down one character */ | |
138 | for (; p-name > 2; p--) | |
139 | *p = *(p-1); | |
46fc3d4c | 140 | name[2] = toCTRL(name[1]); |
141 | name[1] = '^'; | |
142 | } | |
cea2e8a9 | 143 | yyerror(Perl_form(aTHX_ "Can't use global %s in \"my\"",name)); |
a0d0e21e | 144 | } |
599cee73 | 145 | if (ckWARN(WARN_UNSAFE) && AvFILLp(PL_comppad_name) >= 0) { |
3280af22 NIS |
146 | SV **svp = AvARRAY(PL_comppad_name); |
147 | for (off = AvFILLp(PL_comppad_name); off > PL_comppad_name_floor; off--) { | |
b1cb66bf | 148 | if ((sv = svp[off]) |
3280af22 | 149 | && sv != &PL_sv_undef |
c53d7c7d | 150 | && (SvIVX(sv) == PAD_MAX || SvIVX(sv) == 0) |
b1cb66bf | 151 | && strEQ(name, SvPVX(sv))) |
152 | { | |
cea2e8a9 | 153 | Perl_warner(aTHX_ WARN_UNSAFE, |
9fbbe825 | 154 | "\"my\" variable %s masks earlier declaration in same %s", |
c53d7c7d | 155 | name, (SvIVX(sv) == PAD_MAX ? "scope" : "statement")); |
b1cb66bf | 156 | break; |
157 | } | |
158 | } | |
159 | } | |
a0d0e21e LW |
160 | off = pad_alloc(OP_PADSV, SVs_PADMY); |
161 | sv = NEWSV(1102,0); | |
93a17b20 LW |
162 | sv_upgrade(sv, SVt_PVNV); |
163 | sv_setpv(sv, name); | |
3280af22 | 164 | if (PL_in_my_stash) { |
c750a3ec | 165 | if (*name != '$') |
cea2e8a9 | 166 | yyerror(Perl_form(aTHX_ "Can't declare class for non-scalar %s in \"my\"", |
dce40276 | 167 | name)); |
c750a3ec MB |
168 | SvOBJECT_on(sv); |
169 | (void)SvUPGRADE(sv, SVt_PVMG); | |
3280af22 NIS |
170 | SvSTASH(sv) = (HV*)SvREFCNT_inc(PL_in_my_stash); |
171 | PL_sv_objcount++; | |
c750a3ec | 172 | } |
3280af22 | 173 | av_store(PL_comppad_name, off, sv); |
65202027 | 174 | SvNVX(sv) = (NV)PAD_MAX; |
8990e307 | 175 | SvIVX(sv) = 0; /* Not yet introduced--see newSTATEOP */ |
3280af22 NIS |
176 | if (!PL_min_intro_pending) |
177 | PL_min_intro_pending = off; | |
178 | PL_max_intro_pending = off; | |
93a17b20 | 179 | if (*name == '@') |
3280af22 | 180 | av_store(PL_comppad, off, (SV*)newAV()); |
93a17b20 | 181 | else if (*name == '%') |
3280af22 NIS |
182 | av_store(PL_comppad, off, (SV*)newHV()); |
183 | SvPADMY_on(PL_curpad[off]); | |
93a17b20 LW |
184 | return off; |
185 | } | |
186 | ||
2680586e GS |
187 | #define FINDLEX_NOSEARCH 1 /* don't search outer contexts */ |
188 | ||
76e3520e | 189 | STATIC PADOFFSET |
cea2e8a9 | 190 | S_pad_findlex(pTHX_ char *name, PADOFFSET newoff, U32 seq, CV* startcv, |
864dbfa3 | 191 | I32 cx_ix, I32 saweval, U32 flags) |
93a17b20 | 192 | { |
11343788 | 193 | dTHR; |
748a9306 | 194 | CV *cv; |
93a17b20 LW |
195 | I32 off; |
196 | SV *sv; | |
93a17b20 | 197 | register I32 i; |
c09156bb | 198 | register PERL_CONTEXT *cx; |
93a17b20 | 199 | |
748a9306 | 200 | for (cv = startcv; cv; cv = CvOUTSIDE(cv)) { |
4fdae800 | 201 | AV *curlist = CvPADLIST(cv); |
202 | SV **svp = av_fetch(curlist, 0, FALSE); | |
748a9306 | 203 | AV *curname; |
4fdae800 | 204 | |
3280af22 | 205 | if (!svp || *svp == &PL_sv_undef) |
4633a7c4 | 206 | continue; |
748a9306 LW |
207 | curname = (AV*)*svp; |
208 | svp = AvARRAY(curname); | |
93965878 | 209 | for (off = AvFILLp(curname); off > 0; off--) { |
748a9306 | 210 | if ((sv = svp[off]) && |
3280af22 | 211 | sv != &PL_sv_undef && |
748a9306 | 212 | seq <= SvIVX(sv) && |
13826f2c | 213 | seq > I_32(SvNVX(sv)) && |
748a9306 LW |
214 | strEQ(SvPVX(sv), name)) |
215 | { | |
5f05dabc | 216 | I32 depth; |
217 | AV *oldpad; | |
218 | SV *oldsv; | |
219 | ||
220 | depth = CvDEPTH(cv); | |
221 | if (!depth) { | |
9607fc9c | 222 | if (newoff) { |
223 | if (SvFAKE(sv)) | |
224 | continue; | |
4fdae800 | 225 | return 0; /* don't clone from inactive stack frame */ |
9607fc9c | 226 | } |
5f05dabc | 227 | depth = 1; |
228 | } | |
229 | oldpad = (AV*)*av_fetch(curlist, depth, FALSE); | |
230 | oldsv = *av_fetch(oldpad, off, TRUE); | |
748a9306 | 231 | if (!newoff) { /* Not a mere clone operation. */ |
9607fc9c | 232 | SV *namesv = NEWSV(1103,0); |
748a9306 | 233 | newoff = pad_alloc(OP_PADSV, SVs_PADMY); |
9607fc9c | 234 | sv_upgrade(namesv, SVt_PVNV); |
235 | sv_setpv(namesv, name); | |
3280af22 | 236 | av_store(PL_comppad_name, newoff, namesv); |
65202027 | 237 | SvNVX(namesv) = (NV)PL_curcop->cop_seq; |
c53d7c7d | 238 | SvIVX(namesv) = PAD_MAX; /* A ref, intro immediately */ |
9607fc9c | 239 | SvFAKE_on(namesv); /* A ref, not a real var */ |
87671ffc | 240 | if (SvOBJECT(sv)) { /* A typed var */ |
3d93dc8b GS |
241 | SvOBJECT_on(namesv); |
242 | (void)SvUPGRADE(namesv, SVt_PVMG); | |
87671ffc | 243 | SvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)SvSTASH(sv)); |
3d93dc8b GS |
244 | PL_sv_objcount++; |
245 | } | |
3280af22 | 246 | if (CvANON(PL_compcv) || SvTYPE(PL_compcv) == SVt_PVFM) { |
28757baa | 247 | /* "It's closures all the way down." */ |
3280af22 | 248 | CvCLONE_on(PL_compcv); |
54310121 | 249 | if (cv == startcv) { |
3280af22 | 250 | if (CvANON(PL_compcv)) |
54310121 | 251 | oldsv = Nullsv; /* no need to keep ref */ |
252 | } | |
253 | else { | |
28757baa | 254 | CV *bcv; |
255 | for (bcv = startcv; | |
256 | bcv && bcv != cv && !CvCLONE(bcv); | |
6b35e009 GS |
257 | bcv = CvOUTSIDE(bcv)) |
258 | { | |
28757baa | 259 | if (CvANON(bcv)) |
260 | CvCLONE_on(bcv); | |
261 | else { | |
6b35e009 GS |
262 | if (ckWARN(WARN_CLOSURE) |
263 | && !CvUNIQUE(bcv) && !CvUNIQUE(cv)) | |
264 | { | |
cea2e8a9 | 265 | Perl_warner(aTHX_ WARN_CLOSURE, |
44a8e56a | 266 | "Variable \"%s\" may be unavailable", |
28757baa | 267 | name); |
6b35e009 | 268 | } |
28757baa | 269 | break; |
270 | } | |
271 | } | |
272 | } | |
273 | } | |
3280af22 | 274 | else if (!CvUNIQUE(PL_compcv)) { |
599cee73 | 275 | if (ckWARN(WARN_CLOSURE) && !SvFAKE(sv) && !CvUNIQUE(cv)) |
cea2e8a9 | 276 | Perl_warner(aTHX_ WARN_CLOSURE, |
599cee73 | 277 | "Variable \"%s\" will not stay shared", name); |
5f05dabc | 278 | } |
748a9306 | 279 | } |
3280af22 | 280 | av_store(PL_comppad, newoff, SvREFCNT_inc(oldsv)); |
748a9306 LW |
281 | return newoff; |
282 | } | |
93a17b20 LW |
283 | } |
284 | } | |
285 | ||
2680586e GS |
286 | if (flags & FINDLEX_NOSEARCH) |
287 | return 0; | |
288 | ||
93a17b20 LW |
289 | /* Nothing in current lexical context--try eval's context, if any. |
290 | * This is necessary to let the perldb get at lexically scoped variables. | |
291 | * XXX This will also probably interact badly with eval tree caching. | |
292 | */ | |
293 | ||
748a9306 | 294 | for (i = cx_ix; i >= 0; i--) { |
93a17b20 | 295 | cx = &cxstack[i]; |
6b35e009 | 296 | switch (CxTYPE(cx)) { |
93a17b20 | 297 | default: |
748a9306 LW |
298 | if (i == 0 && saweval) { |
299 | seq = cxstack[saweval].blk_oldcop->cop_seq; | |
2680586e | 300 | return pad_findlex(name, newoff, seq, PL_main_cv, -1, saweval, 0); |
748a9306 | 301 | } |
93a17b20 LW |
302 | break; |
303 | case CXt_EVAL: | |
44a8e56a | 304 | switch (cx->blk_eval.old_op_type) { |
305 | case OP_ENTEREVAL: | |
6b35e009 GS |
306 | if (CxREALEVAL(cx)) |
307 | saweval = i; | |
44a8e56a | 308 | break; |
309 | case OP_REQUIRE: | |
310 | /* require must have its own scope */ | |
311 | return 0; | |
312 | } | |
93a17b20 LW |
313 | break; |
314 | case CXt_SUB: | |
315 | if (!saweval) | |
316 | return 0; | |
317 | cv = cx->blk_sub.cv; | |
3280af22 | 318 | if (PL_debstash && CvSTASH(cv) == PL_debstash) { /* ignore DB'* scope */ |
748a9306 | 319 | saweval = i; /* so we know where we were called from */ |
93a17b20 | 320 | continue; |
93a17b20 | 321 | } |
748a9306 | 322 | seq = cxstack[saweval].blk_oldcop->cop_seq; |
2680586e | 323 | return pad_findlex(name, newoff, seq, cv, i-1, saweval,FINDLEX_NOSEARCH); |
93a17b20 LW |
324 | } |
325 | } | |
326 | ||
748a9306 LW |
327 | return 0; |
328 | } | |
a0d0e21e | 329 | |
748a9306 | 330 | PADOFFSET |
864dbfa3 | 331 | Perl_pad_findmy(pTHX_ char *name) |
748a9306 | 332 | { |
11343788 | 333 | dTHR; |
748a9306 | 334 | I32 off; |
54310121 | 335 | I32 pendoff = 0; |
748a9306 | 336 | SV *sv; |
3280af22 NIS |
337 | SV **svp = AvARRAY(PL_comppad_name); |
338 | U32 seq = PL_cop_seqmax; | |
6b35e009 | 339 | PERL_CONTEXT *cx; |
33b8ce05 | 340 | CV *outside; |
748a9306 | 341 | |
11343788 MB |
342 | #ifdef USE_THREADS |
343 | /* | |
344 | * Special case to get lexical (and hence per-thread) @_. | |
345 | * XXX I need to find out how to tell at parse-time whether use | |
346 | * of @_ should refer to a lexical (from a sub) or defgv (global | |
347 | * scope and maybe weird sub-ish things like formats). See | |
348 | * startsub in perly.y. It's possible that @_ could be lexical | |
349 | * (at least from subs) even in non-threaded perl. | |
350 | */ | |
351 | if (strEQ(name, "@_")) | |
352 | return 0; /* success. (NOT_IN_PAD indicates failure) */ | |
353 | #endif /* USE_THREADS */ | |
354 | ||
748a9306 | 355 | /* The one we're looking for is probably just before comppad_name_fill. */ |
3280af22 | 356 | for (off = AvFILLp(PL_comppad_name); off > 0; off--) { |
a0d0e21e | 357 | if ((sv = svp[off]) && |
3280af22 | 358 | sv != &PL_sv_undef && |
54310121 | 359 | (!SvIVX(sv) || |
360 | (seq <= SvIVX(sv) && | |
361 | seq > I_32(SvNVX(sv)))) && | |
a0d0e21e LW |
362 | strEQ(SvPVX(sv), name)) |
363 | { | |
54310121 | 364 | if (SvIVX(sv)) |
365 | return (PADOFFSET)off; | |
366 | pendoff = off; /* this pending def. will override import */ | |
a0d0e21e LW |
367 | } |
368 | } | |
748a9306 | 369 | |
33b8ce05 GS |
370 | outside = CvOUTSIDE(PL_compcv); |
371 | ||
372 | /* Check if if we're compiling an eval'', and adjust seq to be the | |
373 | * eval's seq number. This depends on eval'' having a non-null | |
374 | * CvOUTSIDE() while it is being compiled. The eval'' itself is | |
1aff0e91 GS |
375 | * identified by CvEVAL being true and CvGV being null. */ |
376 | if (outside && CvEVAL(PL_compcv) && !CvGV(PL_compcv) && cxstack_ix >= 0) { | |
6b35e009 GS |
377 | cx = &cxstack[cxstack_ix]; |
378 | if (CxREALEVAL(cx)) | |
379 | seq = cx->blk_oldcop->cop_seq; | |
380 | } | |
381 | ||
748a9306 | 382 | /* See if it's in a nested scope */ |
2680586e | 383 | off = pad_findlex(name, 0, seq, outside, cxstack_ix, 0, 0); |
54310121 | 384 | if (off) { |
385 | /* If there is a pending local definition, this new alias must die */ | |
386 | if (pendoff) | |
3280af22 | 387 | SvIVX(AvARRAY(PL_comppad_name)[off]) = seq; |
11343788 | 388 | return off; /* pad_findlex returns 0 for failure...*/ |
54310121 | 389 | } |
11343788 | 390 | return NOT_IN_PAD; /* ...but we return NOT_IN_PAD for failure */ |
93a17b20 LW |
391 | } |
392 | ||
393 | void | |
864dbfa3 | 394 | Perl_pad_leavemy(pTHX_ I32 fill) |
93a17b20 | 395 | { |
0453d815 | 396 | dTHR; |
93a17b20 | 397 | I32 off; |
3280af22 | 398 | SV **svp = AvARRAY(PL_comppad_name); |
93a17b20 | 399 | SV *sv; |
3280af22 NIS |
400 | if (PL_min_intro_pending && fill < PL_min_intro_pending) { |
401 | for (off = PL_max_intro_pending; off >= PL_min_intro_pending; off--) { | |
0453d815 PM |
402 | if ((sv = svp[off]) && sv != &PL_sv_undef && ckWARN_d(WARN_INTERNAL)) |
403 | Perl_warner(aTHX_ WARN_INTERNAL, "%s never introduced", SvPVX(sv)); | |
8990e307 LW |
404 | } |
405 | } | |
406 | /* "Deintroduce" my variables that are leaving with this scope. */ | |
3280af22 | 407 | for (off = AvFILLp(PL_comppad_name); off > fill; off--) { |
c53d7c7d | 408 | if ((sv = svp[off]) && sv != &PL_sv_undef && SvIVX(sv) == PAD_MAX) |
3280af22 | 409 | SvIVX(sv) = PL_cop_seqmax; |
93a17b20 LW |
410 | } |
411 | } | |
412 | ||
413 | PADOFFSET | |
864dbfa3 | 414 | Perl_pad_alloc(pTHX_ I32 optype, U32 tmptype) |
79072805 | 415 | { |
11343788 | 416 | dTHR; |
79072805 LW |
417 | SV *sv; |
418 | I32 retval; | |
419 | ||
3280af22 | 420 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 421 | Perl_croak(aTHX_ "panic: pad_alloc"); |
3280af22 | 422 | if (PL_pad_reset_pending) |
a0d0e21e | 423 | pad_reset(); |
ed6116ce | 424 | if (tmptype & SVs_PADMY) { |
79072805 | 425 | do { |
3280af22 | 426 | sv = *av_fetch(PL_comppad, AvFILLp(PL_comppad) + 1, TRUE); |
ed6116ce | 427 | } while (SvPADBUSY(sv)); /* need a fresh one */ |
3280af22 | 428 | retval = AvFILLp(PL_comppad); |
79072805 LW |
429 | } |
430 | else { | |
3280af22 NIS |
431 | SV **names = AvARRAY(PL_comppad_name); |
432 | SSize_t names_fill = AvFILLp(PL_comppad_name); | |
bbce6d69 | 433 | for (;;) { |
434 | /* | |
435 | * "foreach" index vars temporarily become aliases to non-"my" | |
436 | * values. Thus we must skip, not just pad values that are | |
437 | * marked as current pad values, but also those with names. | |
438 | */ | |
3280af22 NIS |
439 | if (++PL_padix <= names_fill && |
440 | (sv = names[PL_padix]) && sv != &PL_sv_undef) | |
bbce6d69 | 441 | continue; |
3280af22 | 442 | sv = *av_fetch(PL_comppad, PL_padix, TRUE); |
bbce6d69 | 443 | if (!(SvFLAGS(sv) & (SVs_PADTMP|SVs_PADMY))) |
444 | break; | |
445 | } | |
3280af22 | 446 | retval = PL_padix; |
79072805 | 447 | } |
8990e307 | 448 | SvFLAGS(sv) |= tmptype; |
3280af22 | 449 | PL_curpad = AvARRAY(PL_comppad); |
11343788 | 450 | #ifdef USE_THREADS |
5dc0d613 | 451 | DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx alloc %ld for %s\n", |
533c011a | 452 | (unsigned long) thr, (unsigned long) PL_curpad, |
22c35a8c | 453 | (long) retval, PL_op_name[optype])); |
11343788 | 454 | #else |
d9bb4600 | 455 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx alloc %ld for %s\n", |
3280af22 | 456 | (unsigned long) PL_curpad, |
22c35a8c | 457 | (long) retval, PL_op_name[optype])); |
11343788 | 458 | #endif /* USE_THREADS */ |
79072805 LW |
459 | return (PADOFFSET)retval; |
460 | } | |
461 | ||
462 | SV * | |
864dbfa3 | 463 | Perl_pad_sv(pTHX_ PADOFFSET po) |
79072805 | 464 | { |
11343788 MB |
465 | dTHR; |
466 | #ifdef USE_THREADS | |
5dc0d613 | 467 | DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx sv %d\n", |
533c011a | 468 | (unsigned long) thr, (unsigned long) PL_curpad, po)); |
11343788 | 469 | #else |
79072805 | 470 | if (!po) |
cea2e8a9 | 471 | Perl_croak(aTHX_ "panic: pad_sv po"); |
d9bb4600 | 472 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx sv %d\n", |
3280af22 | 473 | (unsigned long) PL_curpad, po)); |
11343788 | 474 | #endif /* USE_THREADS */ |
3280af22 | 475 | return PL_curpad[po]; /* eventually we'll turn this into a macro */ |
79072805 LW |
476 | } |
477 | ||
478 | void | |
864dbfa3 | 479 | Perl_pad_free(pTHX_ PADOFFSET po) |
79072805 | 480 | { |
11343788 | 481 | dTHR; |
3280af22 | 482 | if (!PL_curpad) |
a0d0e21e | 483 | return; |
3280af22 | 484 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 485 | Perl_croak(aTHX_ "panic: pad_free curpad"); |
79072805 | 486 | if (!po) |
cea2e8a9 | 487 | Perl_croak(aTHX_ "panic: pad_free po"); |
11343788 | 488 | #ifdef USE_THREADS |
5dc0d613 | 489 | DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx free %d\n", |
533c011a | 490 | (unsigned long) thr, (unsigned long) PL_curpad, po)); |
11343788 | 491 | #else |
d9bb4600 | 492 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx free %d\n", |
3280af22 | 493 | (unsigned long) PL_curpad, po)); |
11343788 | 494 | #endif /* USE_THREADS */ |
3280af22 NIS |
495 | if (PL_curpad[po] && PL_curpad[po] != &PL_sv_undef) |
496 | SvPADTMP_off(PL_curpad[po]); | |
497 | if ((I32)po < PL_padix) | |
498 | PL_padix = po - 1; | |
79072805 LW |
499 | } |
500 | ||
501 | void | |
864dbfa3 | 502 | Perl_pad_swipe(pTHX_ PADOFFSET po) |
79072805 | 503 | { |
11343788 | 504 | dTHR; |
3280af22 | 505 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 506 | Perl_croak(aTHX_ "panic: pad_swipe curpad"); |
79072805 | 507 | if (!po) |
cea2e8a9 | 508 | Perl_croak(aTHX_ "panic: pad_swipe po"); |
11343788 | 509 | #ifdef USE_THREADS |
5dc0d613 | 510 | DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx swipe %d\n", |
533c011a | 511 | (unsigned long) thr, (unsigned long) PL_curpad, po)); |
11343788 | 512 | #else |
d9bb4600 | 513 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx swipe %d\n", |
3280af22 | 514 | (unsigned long) PL_curpad, po)); |
11343788 | 515 | #endif /* USE_THREADS */ |
3280af22 NIS |
516 | SvPADTMP_off(PL_curpad[po]); |
517 | PL_curpad[po] = NEWSV(1107,0); | |
518 | SvPADTMP_on(PL_curpad[po]); | |
519 | if ((I32)po < PL_padix) | |
520 | PL_padix = po - 1; | |
79072805 LW |
521 | } |
522 | ||
d9bb4600 GS |
523 | /* XXX pad_reset() is currently disabled because it results in serious bugs. |
524 | * It causes pad temp TARGs to be shared between OPs. Since TARGs are pushed | |
525 | * on the stack by OPs that use them, there are several ways to get an alias | |
526 | * to a shared TARG. Such an alias will change randomly and unpredictably. | |
527 | * We avoid doing this until we can think of a Better Way. | |
528 | * GSAR 97-10-29 */ | |
79072805 | 529 | void |
864dbfa3 | 530 | Perl_pad_reset(pTHX) |
79072805 | 531 | { |
d9bb4600 | 532 | #ifdef USE_BROKEN_PAD_RESET |
11343788 | 533 | dTHR; |
79072805 LW |
534 | register I32 po; |
535 | ||
6b88bc9c | 536 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 537 | Perl_croak(aTHX_ "panic: pad_reset curpad"); |
11343788 | 538 | #ifdef USE_THREADS |
5dc0d613 | 539 | DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx reset\n", |
6b88bc9c | 540 | (unsigned long) thr, (unsigned long) PL_curpad)); |
11343788 | 541 | #else |
d9bb4600 | 542 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx reset\n", |
6b88bc9c | 543 | (unsigned long) PL_curpad)); |
11343788 | 544 | #endif /* USE_THREADS */ |
6b88bc9c GS |
545 | if (!PL_tainting) { /* Can't mix tainted and non-tainted temporaries. */ |
546 | for (po = AvMAX(PL_comppad); po > PL_padix_floor; po--) { | |
547 | if (PL_curpad[po] && !SvIMMORTAL(PL_curpad[po])) | |
548 | SvPADTMP_off(PL_curpad[po]); | |
748a9306 | 549 | } |
6b88bc9c | 550 | PL_padix = PL_padix_floor; |
79072805 | 551 | } |
d9bb4600 | 552 | #endif |
3280af22 | 553 | PL_pad_reset_pending = FALSE; |
79072805 LW |
554 | } |
555 | ||
a863c7d1 | 556 | #ifdef USE_THREADS |
54b9620d | 557 | /* find_threadsv is not reentrant */ |
a863c7d1 | 558 | PADOFFSET |
864dbfa3 | 559 | Perl_find_threadsv(pTHX_ const char *name) |
a863c7d1 MB |
560 | { |
561 | dTHR; | |
562 | char *p; | |
563 | PADOFFSET key; | |
554b3eca | 564 | SV **svp; |
54b9620d | 565 | /* We currently only handle names of a single character */ |
533c011a | 566 | p = strchr(PL_threadsv_names, *name); |
a863c7d1 MB |
567 | if (!p) |
568 | return NOT_IN_PAD; | |
533c011a | 569 | key = p - PL_threadsv_names; |
2d8e6c8d | 570 | MUTEX_LOCK(&thr->mutex); |
54b9620d | 571 | svp = av_fetch(thr->threadsv, key, FALSE); |
2d8e6c8d GS |
572 | if (svp) |
573 | MUTEX_UNLOCK(&thr->mutex); | |
574 | else { | |
554b3eca | 575 | SV *sv = NEWSV(0, 0); |
54b9620d | 576 | av_store(thr->threadsv, key, sv); |
940cb80d | 577 | thr->threadsvp = AvARRAY(thr->threadsv); |
2d8e6c8d | 578 | MUTEX_UNLOCK(&thr->mutex); |
554b3eca MB |
579 | /* |
580 | * Some magic variables used to be automagically initialised | |
581 | * in gv_fetchpv. Those which are now per-thread magicals get | |
582 | * initialised here instead. | |
583 | */ | |
584 | switch (*name) { | |
54b9620d MB |
585 | case '_': |
586 | break; | |
554b3eca MB |
587 | case ';': |
588 | sv_setpv(sv, "\034"); | |
54b9620d | 589 | sv_magic(sv, 0, 0, name, 1); |
554b3eca | 590 | break; |
c277df42 IZ |
591 | case '&': |
592 | case '`': | |
593 | case '\'': | |
533c011a | 594 | PL_sawampersand = TRUE; |
a3f914c5 GS |
595 | /* FALL THROUGH */ |
596 | case '1': | |
597 | case '2': | |
598 | case '3': | |
599 | case '4': | |
600 | case '5': | |
601 | case '6': | |
602 | case '7': | |
603 | case '8': | |
604 | case '9': | |
c277df42 | 605 | SvREADONLY_on(sv); |
d8b5173a | 606 | /* FALL THROUGH */ |
067391ea GS |
607 | |
608 | /* XXX %! tied to Errno.pm needs to be added here. | |
609 | * See gv_fetchpv(). */ | |
610 | /* case '!': */ | |
611 | ||
54b9620d MB |
612 | default: |
613 | sv_magic(sv, 0, 0, name, 1); | |
554b3eca | 614 | } |
8b73bbec | 615 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
54b9620d | 616 | "find_threadsv: new SV %p for $%s%c\n", |
554b3eca MB |
617 | sv, (*name < 32) ? "^" : "", |
618 | (*name < 32) ? toCTRL(*name) : *name)); | |
a863c7d1 MB |
619 | } |
620 | return key; | |
621 | } | |
622 | #endif /* USE_THREADS */ | |
623 | ||
79072805 LW |
624 | /* Destructor */ |
625 | ||
626 | void | |
864dbfa3 | 627 | Perl_op_free(pTHX_ OP *o) |
79072805 | 628 | { |
85e6fe83 | 629 | register OP *kid, *nextkid; |
acb36ea4 | 630 | OPCODE type; |
79072805 | 631 | |
5dc0d613 | 632 | if (!o || o->op_seq == (U16)-1) |
79072805 LW |
633 | return; |
634 | ||
11343788 MB |
635 | if (o->op_flags & OPf_KIDS) { |
636 | for (kid = cUNOPo->op_first; kid; kid = nextkid) { | |
85e6fe83 | 637 | nextkid = kid->op_sibling; /* Get before next freeing kid */ |
79072805 | 638 | op_free(kid); |
85e6fe83 | 639 | } |
79072805 | 640 | } |
acb36ea4 GS |
641 | type = o->op_type; |
642 | if (type == OP_NULL) | |
643 | type = o->op_targ; | |
644 | ||
645 | /* COP* is not cleared by op_clear() so that we may track line | |
646 | * numbers etc even after null() */ | |
647 | if (type == OP_NEXTSTATE || type == OP_SETSTATE || type == OP_DBSTATE) | |
648 | cop_free((COP*)o); | |
649 | ||
650 | op_clear(o); | |
651 | ||
652 | #ifdef PL_OP_SLAB_ALLOC | |
653 | if ((char *) o == PL_OpPtr) | |
654 | { | |
655 | } | |
656 | #else | |
657 | Safefree(o); | |
658 | #endif | |
659 | } | |
79072805 | 660 | |
acb36ea4 GS |
661 | STATIC void |
662 | S_op_clear(pTHX_ OP *o) | |
663 | { | |
11343788 | 664 | switch (o->op_type) { |
acb36ea4 GS |
665 | case OP_NULL: /* Was holding old type, if any. */ |
666 | case OP_ENTEREVAL: /* Was holding hints. */ | |
667 | #ifdef USE_THREADS | |
668 | case OP_THREADSV: /* Was holding index into thr->threadsv AV. */ | |
669 | #endif | |
670 | o->op_targ = 0; | |
a0d0e21e | 671 | break; |
554b3eca | 672 | #ifdef USE_THREADS |
8dd3ba40 SM |
673 | case OP_ENTERITER: |
674 | if (!(o->op_flags & OPf_SPECIAL)) | |
675 | break; | |
676 | /* FALL THROUGH */ | |
554b3eca | 677 | #endif /* USE_THREADS */ |
a6006777 | 678 | default: |
ac4c12e7 | 679 | if (!(o->op_flags & OPf_REF) |
0b94c7bb | 680 | || (PL_check[o->op_type] != MEMBER_TO_FPTR(Perl_ck_ftst))) |
a6006777 | 681 | break; |
682 | /* FALL THROUGH */ | |
463ee0b2 | 683 | case OP_GVSV: |
79072805 | 684 | case OP_GV: |
a6006777 | 685 | case OP_AELEMFAST: |
11343788 | 686 | SvREFCNT_dec(cGVOPo->op_gv); |
acb36ea4 | 687 | cGVOPo->op_gv = Nullgv; |
79072805 LW |
688 | break; |
689 | case OP_CONST: | |
11343788 | 690 | SvREFCNT_dec(cSVOPo->op_sv); |
acb36ea4 | 691 | cSVOPo->op_sv = Nullsv; |
79072805 | 692 | break; |
748a9306 LW |
693 | case OP_GOTO: |
694 | case OP_NEXT: | |
695 | case OP_LAST: | |
696 | case OP_REDO: | |
11343788 | 697 | if (o->op_flags & (OPf_SPECIAL|OPf_STACKED|OPf_KIDS)) |
748a9306 LW |
698 | break; |
699 | /* FALL THROUGH */ | |
a0d0e21e | 700 | case OP_TRANS: |
acb36ea4 | 701 | if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { |
a0ed51b3 | 702 | SvREFCNT_dec(cSVOPo->op_sv); |
acb36ea4 GS |
703 | cSVOPo->op_sv = Nullsv; |
704 | } | |
705 | else { | |
a0ed51b3 | 706 | Safefree(cPVOPo->op_pv); |
acb36ea4 GS |
707 | cPVOPo->op_pv = Nullch; |
708 | } | |
a0d0e21e LW |
709 | break; |
710 | case OP_SUBST: | |
11343788 | 711 | op_free(cPMOPo->op_pmreplroot); |
acb36ea4 | 712 | cPMOPo->op_pmreplroot = Nullop; |
a0d0e21e | 713 | /* FALL THROUGH */ |
748a9306 | 714 | case OP_PUSHRE: |
a0d0e21e | 715 | case OP_MATCH: |
8782bef2 | 716 | case OP_QR: |
c277df42 | 717 | ReREFCNT_dec(cPMOPo->op_pmregexp); |
acb36ea4 | 718 | cPMOPo->op_pmregexp = (REGEXP*)NULL; |
a0d0e21e | 719 | break; |
79072805 LW |
720 | } |
721 | ||
11343788 MB |
722 | if (o->op_targ > 0) |
723 | pad_free(o->op_targ); | |
79072805 LW |
724 | } |
725 | ||
76e3520e | 726 | STATIC void |
3eb57f73 HS |
727 | S_cop_free(pTHX_ COP* cop) |
728 | { | |
729 | Safefree(cop->cop_label); | |
730 | SvREFCNT_dec(cop->cop_filegv); | |
0453d815 | 731 | if (! specialWARN(cop->cop_warnings)) |
3eb57f73 HS |
732 | SvREFCNT_dec(cop->cop_warnings); |
733 | } | |
734 | ||
735 | STATIC void | |
cea2e8a9 | 736 | S_null(pTHX_ OP *o) |
8990e307 | 737 | { |
acb36ea4 GS |
738 | if (o->op_type == OP_NULL) |
739 | return; | |
740 | op_clear(o); | |
11343788 MB |
741 | o->op_targ = o->op_type; |
742 | o->op_type = OP_NULL; | |
22c35a8c | 743 | o->op_ppaddr = PL_ppaddr[OP_NULL]; |
8990e307 LW |
744 | } |
745 | ||
79072805 LW |
746 | /* Contextualizers */ |
747 | ||
463ee0b2 | 748 | #define LINKLIST(o) ((o)->op_next ? (o)->op_next : linklist((OP*)o)) |
79072805 LW |
749 | |
750 | OP * | |
864dbfa3 | 751 | Perl_linklist(pTHX_ OP *o) |
79072805 LW |
752 | { |
753 | register OP *kid; | |
754 | ||
11343788 MB |
755 | if (o->op_next) |
756 | return o->op_next; | |
79072805 LW |
757 | |
758 | /* establish postfix order */ | |
11343788 MB |
759 | if (cUNOPo->op_first) { |
760 | o->op_next = LINKLIST(cUNOPo->op_first); | |
761 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { | |
79072805 LW |
762 | if (kid->op_sibling) |
763 | kid->op_next = LINKLIST(kid->op_sibling); | |
764 | else | |
11343788 | 765 | kid->op_next = o; |
79072805 LW |
766 | } |
767 | } | |
768 | else | |
11343788 | 769 | o->op_next = o; |
79072805 | 770 | |
11343788 | 771 | return o->op_next; |
79072805 LW |
772 | } |
773 | ||
774 | OP * | |
864dbfa3 | 775 | Perl_scalarkids(pTHX_ OP *o) |
79072805 LW |
776 | { |
777 | OP *kid; | |
11343788 MB |
778 | if (o && o->op_flags & OPf_KIDS) { |
779 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
79072805 LW |
780 | scalar(kid); |
781 | } | |
11343788 | 782 | return o; |
79072805 LW |
783 | } |
784 | ||
76e3520e | 785 | STATIC OP * |
cea2e8a9 | 786 | S_scalarboolean(pTHX_ OP *o) |
8990e307 | 787 | { |
d008e5eb | 788 | if (o->op_type == OP_SASSIGN && cBINOPo->op_first->op_type == OP_CONST) { |
0f15f207 | 789 | dTHR; |
d008e5eb GS |
790 | if (ckWARN(WARN_SYNTAX)) { |
791 | line_t oldline = PL_curcop->cop_line; | |
a0d0e21e | 792 | |
d008e5eb GS |
793 | if (PL_copline != NOLINE) |
794 | PL_curcop->cop_line = PL_copline; | |
cea2e8a9 | 795 | Perl_warner(aTHX_ WARN_SYNTAX, "Found = in conditional, should be =="); |
d008e5eb GS |
796 | PL_curcop->cop_line = oldline; |
797 | } | |
a0d0e21e | 798 | } |
11343788 | 799 | return scalar(o); |
8990e307 LW |
800 | } |
801 | ||
802 | OP * | |
864dbfa3 | 803 | Perl_scalar(pTHX_ OP *o) |
79072805 LW |
804 | { |
805 | OP *kid; | |
806 | ||
a0d0e21e | 807 | /* assumes no premature commitment */ |
3280af22 | 808 | if (!o || (o->op_flags & OPf_WANT) || PL_error_count |
5dc0d613 | 809 | || o->op_type == OP_RETURN) |
11343788 | 810 | return o; |
79072805 | 811 | |
b162f9ea IZ |
812 | if ((o->op_private & OPpTARGET_MY) |
813 | && (PL_opargs[o->op_type] & OA_TARGLEX)) /* OPp share the meaning */ | |
814 | return scalar(o); /* As if inside SASSIGN */ | |
815 | ||
5dc0d613 | 816 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_SCALAR; |
79072805 | 817 | |
11343788 | 818 | switch (o->op_type) { |
79072805 | 819 | case OP_REPEAT: |
11343788 MB |
820 | if (o->op_private & OPpREPEAT_DOLIST) |
821 | null(((LISTOP*)cBINOPo->op_first)->op_first); | |
822 | scalar(cBINOPo->op_first); | |
8990e307 | 823 | break; |
79072805 LW |
824 | case OP_OR: |
825 | case OP_AND: | |
826 | case OP_COND_EXPR: | |
11343788 | 827 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
8990e307 | 828 | scalar(kid); |
79072805 | 829 | break; |
a0d0e21e | 830 | case OP_SPLIT: |
11343788 | 831 | if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) { |
a0d0e21e LW |
832 | if (!kPMOP->op_pmreplroot) |
833 | deprecate("implicit split to @_"); | |
834 | } | |
835 | /* FALL THROUGH */ | |
79072805 | 836 | case OP_MATCH: |
8782bef2 | 837 | case OP_QR: |
79072805 LW |
838 | case OP_SUBST: |
839 | case OP_NULL: | |
8990e307 | 840 | default: |
11343788 MB |
841 | if (o->op_flags & OPf_KIDS) { |
842 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) | |
8990e307 LW |
843 | scalar(kid); |
844 | } | |
79072805 LW |
845 | break; |
846 | case OP_LEAVE: | |
847 | case OP_LEAVETRY: | |
5dc0d613 | 848 | kid = cLISTOPo->op_first; |
54310121 | 849 | scalar(kid); |
850 | while (kid = kid->op_sibling) { | |
851 | if (kid->op_sibling) | |
852 | scalarvoid(kid); | |
853 | else | |
854 | scalar(kid); | |
855 | } | |
3280af22 | 856 | WITH_THR(PL_curcop = &PL_compiling); |
54310121 | 857 | break; |
748a9306 | 858 | case OP_SCOPE: |
79072805 | 859 | case OP_LINESEQ: |
8990e307 | 860 | case OP_LIST: |
11343788 | 861 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
79072805 LW |
862 | if (kid->op_sibling) |
863 | scalarvoid(kid); | |
864 | else | |
865 | scalar(kid); | |
866 | } | |
3280af22 | 867 | WITH_THR(PL_curcop = &PL_compiling); |
79072805 LW |
868 | break; |
869 | } | |
11343788 | 870 | return o; |
79072805 LW |
871 | } |
872 | ||
873 | OP * | |
864dbfa3 | 874 | Perl_scalarvoid(pTHX_ OP *o) |
79072805 LW |
875 | { |
876 | OP *kid; | |
8990e307 LW |
877 | char* useless = 0; |
878 | SV* sv; | |
2ebea0a1 GS |
879 | U8 want; |
880 | ||
acb36ea4 GS |
881 | if (o->op_type == OP_NEXTSTATE |
882 | || o->op_type == OP_SETSTATE | |
883 | || o->op_type == OP_DBSTATE | |
884 | || (o->op_type == OP_NULL && (o->op_targ == OP_NEXTSTATE | |
885 | || o->op_targ == OP_SETSTATE | |
886 | || o->op_targ == OP_DBSTATE))) | |
2ebea0a1 GS |
887 | { |
888 | dTHR; | |
889 | PL_curcop = (COP*)o; /* for warning below */ | |
890 | } | |
79072805 | 891 | |
54310121 | 892 | /* assumes no premature commitment */ |
2ebea0a1 GS |
893 | want = o->op_flags & OPf_WANT; |
894 | if ((want && want != OPf_WANT_SCALAR) || PL_error_count | |
5dc0d613 | 895 | || o->op_type == OP_RETURN) |
11343788 | 896 | return o; |
79072805 | 897 | |
b162f9ea IZ |
898 | if ((o->op_private & OPpTARGET_MY) |
899 | && (PL_opargs[o->op_type] & OA_TARGLEX)) /* OPp share the meaning */ | |
900 | return scalar(o); /* As if inside SASSIGN */ | |
901 | ||
5dc0d613 | 902 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_VOID; |
79072805 | 903 | |
11343788 | 904 | switch (o->op_type) { |
79072805 | 905 | default: |
22c35a8c | 906 | if (!(PL_opargs[o->op_type] & OA_FOLDCONST)) |
8990e307 | 907 | break; |
36477c24 | 908 | /* FALL THROUGH */ |
909 | case OP_REPEAT: | |
11343788 | 910 | if (o->op_flags & OPf_STACKED) |
8990e307 | 911 | break; |
5d82c453 GA |
912 | goto func_ops; |
913 | case OP_SUBSTR: | |
914 | if (o->op_private == 4) | |
915 | break; | |
8990e307 LW |
916 | /* FALL THROUGH */ |
917 | case OP_GVSV: | |
918 | case OP_WANTARRAY: | |
919 | case OP_GV: | |
920 | case OP_PADSV: | |
921 | case OP_PADAV: | |
922 | case OP_PADHV: | |
923 | case OP_PADANY: | |
924 | case OP_AV2ARYLEN: | |
8990e307 | 925 | case OP_REF: |
a0d0e21e LW |
926 | case OP_REFGEN: |
927 | case OP_SREFGEN: | |
8990e307 LW |
928 | case OP_DEFINED: |
929 | case OP_HEX: | |
930 | case OP_OCT: | |
931 | case OP_LENGTH: | |
8990e307 LW |
932 | case OP_VEC: |
933 | case OP_INDEX: | |
934 | case OP_RINDEX: | |
935 | case OP_SPRINTF: | |
936 | case OP_AELEM: | |
937 | case OP_AELEMFAST: | |
938 | case OP_ASLICE: | |
8990e307 LW |
939 | case OP_HELEM: |
940 | case OP_HSLICE: | |
941 | case OP_UNPACK: | |
942 | case OP_PACK: | |
8990e307 LW |
943 | case OP_JOIN: |
944 | case OP_LSLICE: | |
945 | case OP_ANONLIST: | |
946 | case OP_ANONHASH: | |
947 | case OP_SORT: | |
948 | case OP_REVERSE: | |
949 | case OP_RANGE: | |
950 | case OP_FLIP: | |
951 | case OP_FLOP: | |
952 | case OP_CALLER: | |
953 | case OP_FILENO: | |
954 | case OP_EOF: | |
955 | case OP_TELL: | |
956 | case OP_GETSOCKNAME: | |
957 | case OP_GETPEERNAME: | |
958 | case OP_READLINK: | |
959 | case OP_TELLDIR: | |
960 | case OP_GETPPID: | |
961 | case OP_GETPGRP: | |
962 | case OP_GETPRIORITY: | |
963 | case OP_TIME: | |
964 | case OP_TMS: | |
965 | case OP_LOCALTIME: | |
966 | case OP_GMTIME: | |
967 | case OP_GHBYNAME: | |
968 | case OP_GHBYADDR: | |
969 | case OP_GHOSTENT: | |
970 | case OP_GNBYNAME: | |
971 | case OP_GNBYADDR: | |
972 | case OP_GNETENT: | |
973 | case OP_GPBYNAME: | |
974 | case OP_GPBYNUMBER: | |
975 | case OP_GPROTOENT: | |
976 | case OP_GSBYNAME: | |
977 | case OP_GSBYPORT: | |
978 | case OP_GSERVENT: | |
979 | case OP_GPWNAM: | |
980 | case OP_GPWUID: | |
981 | case OP_GGRNAM: | |
982 | case OP_GGRGID: | |
983 | case OP_GETLOGIN: | |
5d82c453 | 984 | func_ops: |
11343788 | 985 | if (!(o->op_private & OPpLVAL_INTRO)) |
22c35a8c | 986 | useless = PL_op_desc[o->op_type]; |
8990e307 LW |
987 | break; |
988 | ||
989 | case OP_RV2GV: | |
990 | case OP_RV2SV: | |
991 | case OP_RV2AV: | |
992 | case OP_RV2HV: | |
11343788 MB |
993 | if (!(o->op_private & OPpLVAL_INTRO) && |
994 | (!o->op_sibling || o->op_sibling->op_type != OP_READLINE)) | |
8990e307 LW |
995 | useless = "a variable"; |
996 | break; | |
79072805 LW |
997 | |
998 | case OP_CONST: | |
11343788 | 999 | sv = cSVOPo->op_sv; |
7a52d87a GS |
1000 | if (cSVOPo->op_private & OPpCONST_STRICT) |
1001 | no_bareword_allowed(o); | |
1002 | else { | |
d008e5eb GS |
1003 | dTHR; |
1004 | if (ckWARN(WARN_VOID)) { | |
1005 | useless = "a constant"; | |
1006 | if (SvNIOK(sv) && (SvNV(sv) == 0.0 || SvNV(sv) == 1.0)) | |
1007 | useless = 0; | |
1008 | else if (SvPOK(sv)) { | |
1009 | if (strnEQ(SvPVX(sv), "di", 2) || | |
1010 | strnEQ(SvPVX(sv), "ds", 2) || | |
1011 | strnEQ(SvPVX(sv), "ig", 2)) | |
1012 | useless = 0; | |
1013 | } | |
8990e307 LW |
1014 | } |
1015 | } | |
acb36ea4 | 1016 | null(o); /* don't execute or even remember it */ |
79072805 LW |
1017 | break; |
1018 | ||
1019 | case OP_POSTINC: | |
11343788 | 1020 | o->op_type = OP_PREINC; /* pre-increment is faster */ |
22c35a8c | 1021 | o->op_ppaddr = PL_ppaddr[OP_PREINC]; |
79072805 LW |
1022 | break; |
1023 | ||
1024 | case OP_POSTDEC: | |
11343788 | 1025 | o->op_type = OP_PREDEC; /* pre-decrement is faster */ |
22c35a8c | 1026 | o->op_ppaddr = PL_ppaddr[OP_PREDEC]; |
79072805 LW |
1027 | break; |
1028 | ||
79072805 LW |
1029 | case OP_OR: |
1030 | case OP_AND: | |
1031 | case OP_COND_EXPR: | |
11343788 | 1032 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
79072805 LW |
1033 | scalarvoid(kid); |
1034 | break; | |
5aabfad6 | 1035 | |
a0d0e21e | 1036 | case OP_NULL: |
11343788 | 1037 | if (o->op_flags & OPf_STACKED) |
a0d0e21e | 1038 | break; |
5aabfad6 | 1039 | /* FALL THROUGH */ |
2ebea0a1 GS |
1040 | case OP_NEXTSTATE: |
1041 | case OP_DBSTATE: | |
79072805 LW |
1042 | case OP_ENTERTRY: |
1043 | case OP_ENTER: | |
1044 | case OP_SCALAR: | |
11343788 | 1045 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1046 | break; |
54310121 | 1047 | /* FALL THROUGH */ |
463ee0b2 | 1048 | case OP_SCOPE: |
79072805 LW |
1049 | case OP_LEAVE: |
1050 | case OP_LEAVETRY: | |
a0d0e21e | 1051 | case OP_LEAVELOOP: |
79072805 | 1052 | case OP_LINESEQ: |
79072805 | 1053 | case OP_LIST: |
11343788 | 1054 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
79072805 LW |
1055 | scalarvoid(kid); |
1056 | break; | |
c90c0ff4 | 1057 | case OP_ENTEREVAL: |
5196be3e | 1058 | scalarkids(o); |
c90c0ff4 | 1059 | break; |
5aabfad6 | 1060 | case OP_REQUIRE: |
c90c0ff4 | 1061 | /* all requires must return a boolean value */ |
5196be3e MB |
1062 | o->op_flags &= ~OPf_WANT; |
1063 | return scalar(o); | |
a0d0e21e | 1064 | case OP_SPLIT: |
11343788 | 1065 | if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) { |
a0d0e21e LW |
1066 | if (!kPMOP->op_pmreplroot) |
1067 | deprecate("implicit split to @_"); | |
1068 | } | |
1069 | break; | |
79072805 | 1070 | } |
d008e5eb GS |
1071 | if (useless) { |
1072 | dTHR; | |
1073 | if (ckWARN(WARN_VOID)) | |
cea2e8a9 | 1074 | Perl_warner(aTHX_ WARN_VOID, "Useless use of %s in void context", useless); |
d008e5eb | 1075 | } |
11343788 | 1076 | return o; |
79072805 LW |
1077 | } |
1078 | ||
1079 | OP * | |
864dbfa3 | 1080 | Perl_listkids(pTHX_ OP *o) |
79072805 LW |
1081 | { |
1082 | OP *kid; | |
11343788 MB |
1083 | if (o && o->op_flags & OPf_KIDS) { |
1084 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
79072805 LW |
1085 | list(kid); |
1086 | } | |
11343788 | 1087 | return o; |
79072805 LW |
1088 | } |
1089 | ||
1090 | OP * | |
864dbfa3 | 1091 | Perl_list(pTHX_ OP *o) |
79072805 LW |
1092 | { |
1093 | OP *kid; | |
1094 | ||
a0d0e21e | 1095 | /* assumes no premature commitment */ |
3280af22 | 1096 | if (!o || (o->op_flags & OPf_WANT) || PL_error_count |
5dc0d613 | 1097 | || o->op_type == OP_RETURN) |
11343788 | 1098 | return o; |
79072805 | 1099 | |
b162f9ea IZ |
1100 | if ((o->op_private & OPpTARGET_MY) |
1101 | && (PL_opargs[o->op_type] & OA_TARGLEX)) /* OPp share the meaning */ | |
1102 | return o; /* As if inside SASSIGN */ | |
1103 | ||
5dc0d613 | 1104 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_LIST; |
79072805 | 1105 | |
11343788 | 1106 | switch (o->op_type) { |
79072805 LW |
1107 | case OP_FLOP: |
1108 | case OP_REPEAT: | |
11343788 | 1109 | list(cBINOPo->op_first); |
79072805 LW |
1110 | break; |
1111 | case OP_OR: | |
1112 | case OP_AND: | |
1113 | case OP_COND_EXPR: | |
11343788 | 1114 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
79072805 LW |
1115 | list(kid); |
1116 | break; | |
1117 | default: | |
1118 | case OP_MATCH: | |
8782bef2 | 1119 | case OP_QR: |
79072805 LW |
1120 | case OP_SUBST: |
1121 | case OP_NULL: | |
11343788 | 1122 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1123 | break; |
11343788 MB |
1124 | if (!o->op_next && cUNOPo->op_first->op_type == OP_FLOP) { |
1125 | list(cBINOPo->op_first); | |
1126 | return gen_constant_list(o); | |
79072805 LW |
1127 | } |
1128 | case OP_LIST: | |
11343788 | 1129 | listkids(o); |
79072805 LW |
1130 | break; |
1131 | case OP_LEAVE: | |
1132 | case OP_LEAVETRY: | |
5dc0d613 | 1133 | kid = cLISTOPo->op_first; |
54310121 | 1134 | list(kid); |
1135 | while (kid = kid->op_sibling) { | |
1136 | if (kid->op_sibling) | |
1137 | scalarvoid(kid); | |
1138 | else | |
1139 | list(kid); | |
1140 | } | |
3280af22 | 1141 | WITH_THR(PL_curcop = &PL_compiling); |
54310121 | 1142 | break; |
748a9306 | 1143 | case OP_SCOPE: |
79072805 | 1144 | case OP_LINESEQ: |
11343788 | 1145 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
79072805 LW |
1146 | if (kid->op_sibling) |
1147 | scalarvoid(kid); | |
1148 | else | |
1149 | list(kid); | |
1150 | } | |
3280af22 | 1151 | WITH_THR(PL_curcop = &PL_compiling); |
79072805 | 1152 | break; |
c90c0ff4 | 1153 | case OP_REQUIRE: |
1154 | /* all requires must return a boolean value */ | |
5196be3e MB |
1155 | o->op_flags &= ~OPf_WANT; |
1156 | return scalar(o); | |
79072805 | 1157 | } |
11343788 | 1158 | return o; |
79072805 LW |
1159 | } |
1160 | ||
1161 | OP * | |
864dbfa3 | 1162 | Perl_scalarseq(pTHX_ OP *o) |
79072805 LW |
1163 | { |
1164 | OP *kid; | |
1165 | ||
11343788 MB |
1166 | if (o) { |
1167 | if (o->op_type == OP_LINESEQ || | |
1168 | o->op_type == OP_SCOPE || | |
1169 | o->op_type == OP_LEAVE || | |
1170 | o->op_type == OP_LEAVETRY) | |
463ee0b2 | 1171 | { |
0f15f207 | 1172 | dTHR; |
11343788 | 1173 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
ed6116ce | 1174 | if (kid->op_sibling) { |
463ee0b2 | 1175 | scalarvoid(kid); |
ed6116ce | 1176 | } |
463ee0b2 | 1177 | } |
3280af22 | 1178 | PL_curcop = &PL_compiling; |
79072805 | 1179 | } |
11343788 | 1180 | o->op_flags &= ~OPf_PARENS; |
3280af22 | 1181 | if (PL_hints & HINT_BLOCK_SCOPE) |
11343788 | 1182 | o->op_flags |= OPf_PARENS; |
79072805 | 1183 | } |
8990e307 | 1184 | else |
11343788 MB |
1185 | o = newOP(OP_STUB, 0); |
1186 | return o; | |
79072805 LW |
1187 | } |
1188 | ||
76e3520e | 1189 | STATIC OP * |
cea2e8a9 | 1190 | S_modkids(pTHX_ OP *o, I32 type) |
79072805 LW |
1191 | { |
1192 | OP *kid; | |
11343788 MB |
1193 | if (o && o->op_flags & OPf_KIDS) { |
1194 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
463ee0b2 | 1195 | mod(kid, type); |
79072805 | 1196 | } |
11343788 | 1197 | return o; |
79072805 LW |
1198 | } |
1199 | ||
79072805 | 1200 | OP * |
864dbfa3 | 1201 | Perl_mod(pTHX_ OP *o, I32 type) |
79072805 | 1202 | { |
11343788 | 1203 | dTHR; |
79072805 LW |
1204 | OP *kid; |
1205 | SV *sv; | |
2d8e6c8d | 1206 | STRLEN n_a; |
79072805 | 1207 | |
3280af22 | 1208 | if (!o || PL_error_count) |
11343788 | 1209 | return o; |
79072805 | 1210 | |
b162f9ea IZ |
1211 | if ((o->op_private & OPpTARGET_MY) |
1212 | && (PL_opargs[o->op_type] & OA_TARGLEX)) /* OPp share the meaning */ | |
1213 | return o; | |
1214 | ||
11343788 | 1215 | switch (o->op_type) { |
68dc0745 | 1216 | case OP_UNDEF: |
3280af22 | 1217 | PL_modcount++; |
5dc0d613 | 1218 | return o; |
a0d0e21e | 1219 | case OP_CONST: |
11343788 | 1220 | if (!(o->op_private & (OPpCONST_ARYBASE))) |
a0d0e21e | 1221 | goto nomod; |
3280af22 NIS |
1222 | if (PL_eval_start && PL_eval_start->op_type == OP_CONST) { |
1223 | PL_compiling.cop_arybase = (I32)SvIV(((SVOP*)PL_eval_start)->op_sv); | |
1224 | PL_eval_start = 0; | |
a0d0e21e LW |
1225 | } |
1226 | else if (!type) { | |
3280af22 NIS |
1227 | SAVEI32(PL_compiling.cop_arybase); |
1228 | PL_compiling.cop_arybase = 0; | |
a0d0e21e LW |
1229 | } |
1230 | else if (type == OP_REFGEN) | |
1231 | goto nomod; | |
1232 | else | |
cea2e8a9 | 1233 | Perl_croak(aTHX_ "That use of $[ is unsupported"); |
a0d0e21e | 1234 | break; |
5f05dabc | 1235 | case OP_STUB: |
5196be3e | 1236 | if (o->op_flags & OPf_PARENS) |
5f05dabc | 1237 | break; |
1238 | goto nomod; | |
a0d0e21e LW |
1239 | case OP_ENTERSUB: |
1240 | if ((type == OP_UNDEF || type == OP_REFGEN) && | |
11343788 MB |
1241 | !(o->op_flags & OPf_STACKED)) { |
1242 | o->op_type = OP_RV2CV; /* entersub => rv2cv */ | |
22c35a8c | 1243 | o->op_ppaddr = PL_ppaddr[OP_RV2CV]; |
11343788 MB |
1244 | assert(cUNOPo->op_first->op_type == OP_NULL); |
1245 | null(((LISTOP*)cUNOPo->op_first)->op_first);/* disable pushmark */ | |
79072805 LW |
1246 | break; |
1247 | } | |
1248 | /* FALL THROUGH */ | |
1249 | default: | |
a0d0e21e LW |
1250 | nomod: |
1251 | /* grep, foreach, subcalls, refgen */ | |
1252 | if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN) | |
1253 | break; | |
cea2e8a9 | 1254 | yyerror(Perl_form(aTHX_ "Can't modify %s in %s", |
638bc118 | 1255 | (o->op_type == OP_NULL && (o->op_flags & OPf_SPECIAL) |
22c35a8c GS |
1256 | ? "do block" : PL_op_desc[o->op_type]), |
1257 | type ? PL_op_desc[type] : "local")); | |
11343788 | 1258 | return o; |
79072805 | 1259 | |
a0d0e21e LW |
1260 | case OP_PREINC: |
1261 | case OP_PREDEC: | |
1262 | case OP_POW: | |
1263 | case OP_MULTIPLY: | |
1264 | case OP_DIVIDE: | |
1265 | case OP_MODULO: | |
1266 | case OP_REPEAT: | |
1267 | case OP_ADD: | |
1268 | case OP_SUBTRACT: | |
1269 | case OP_CONCAT: | |
1270 | case OP_LEFT_SHIFT: | |
1271 | case OP_RIGHT_SHIFT: | |
1272 | case OP_BIT_AND: | |
1273 | case OP_BIT_XOR: | |
1274 | case OP_BIT_OR: | |
1275 | case OP_I_MULTIPLY: | |
1276 | case OP_I_DIVIDE: | |
1277 | case OP_I_MODULO: | |
1278 | case OP_I_ADD: | |
1279 | case OP_I_SUBTRACT: | |
11343788 | 1280 | if (!(o->op_flags & OPf_STACKED)) |
a0d0e21e | 1281 | goto nomod; |
3280af22 | 1282 | PL_modcount++; |
a0d0e21e LW |
1283 | break; |
1284 | ||
79072805 | 1285 | case OP_COND_EXPR: |
11343788 | 1286 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
463ee0b2 | 1287 | mod(kid, type); |
79072805 LW |
1288 | break; |
1289 | ||
1290 | case OP_RV2AV: | |
1291 | case OP_RV2HV: | |
93af7a87 | 1292 | if (!type && cUNOPo->op_first->op_type != OP_GV) |
cea2e8a9 | 1293 | Perl_croak(aTHX_ "Can't localize through a reference"); |
11343788 | 1294 | if (type == OP_REFGEN && o->op_flags & OPf_PARENS) { |
3280af22 | 1295 | PL_modcount = 10000; |
11343788 | 1296 | return o; /* Treat \(@foo) like ordinary list. */ |
748a9306 LW |
1297 | } |
1298 | /* FALL THROUGH */ | |
79072805 | 1299 | case OP_RV2GV: |
5dc0d613 | 1300 | if (scalar_mod_type(o, type)) |
3fe9a6f1 | 1301 | goto nomod; |
11343788 | 1302 | ref(cUNOPo->op_first, o->op_type); |
79072805 LW |
1303 | /* FALL THROUGH */ |
1304 | case OP_AASSIGN: | |
1305 | case OP_ASLICE: | |
1306 | case OP_HSLICE: | |
93a17b20 LW |
1307 | case OP_NEXTSTATE: |
1308 | case OP_DBSTATE: | |
a0d0e21e LW |
1309 | case OP_REFGEN: |
1310 | case OP_CHOMP: | |
3280af22 | 1311 | PL_modcount = 10000; |
79072805 | 1312 | break; |
463ee0b2 | 1313 | case OP_RV2SV: |
11343788 | 1314 | if (!type && cUNOPo->op_first->op_type != OP_GV) |
cea2e8a9 | 1315 | Perl_croak(aTHX_ "Can't localize through a reference"); |
aeea060c | 1316 | ref(cUNOPo->op_first, o->op_type); |
463ee0b2 | 1317 | /* FALL THROUGH */ |
79072805 | 1318 | case OP_GV: |
463ee0b2 | 1319 | case OP_AV2ARYLEN: |
3280af22 | 1320 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 1321 | case OP_SASSIGN: |
bf4b1e52 GS |
1322 | case OP_ANDASSIGN: |
1323 | case OP_ORASSIGN: | |
8990e307 | 1324 | case OP_AELEMFAST: |
3280af22 | 1325 | PL_modcount++; |
8990e307 LW |
1326 | break; |
1327 | ||
748a9306 LW |
1328 | case OP_PADAV: |
1329 | case OP_PADHV: | |
3280af22 | 1330 | PL_modcount = 10000; |
5196be3e MB |
1331 | if (type == OP_REFGEN && o->op_flags & OPf_PARENS) |
1332 | return o; /* Treat \(@foo) like ordinary list. */ | |
1333 | if (scalar_mod_type(o, type)) | |
3fe9a6f1 | 1334 | goto nomod; |
748a9306 LW |
1335 | /* FALL THROUGH */ |
1336 | case OP_PADSV: | |
3280af22 | 1337 | PL_modcount++; |
748a9306 | 1338 | if (!type) |
cea2e8a9 | 1339 | Perl_croak(aTHX_ "Can't localize lexical variable %s", |
2d8e6c8d | 1340 | SvPV(*av_fetch(PL_comppad_name, o->op_targ, 4), n_a)); |
463ee0b2 LW |
1341 | break; |
1342 | ||
554b3eca | 1343 | #ifdef USE_THREADS |
2faa37cc | 1344 | case OP_THREADSV: |
533c011a | 1345 | PL_modcount++; /* XXX ??? */ |
554b3eca MB |
1346 | break; |
1347 | #endif /* USE_THREADS */ | |
1348 | ||
748a9306 LW |
1349 | case OP_PUSHMARK: |
1350 | break; | |
a0d0e21e | 1351 | |
69969c6f SB |
1352 | case OP_KEYS: |
1353 | if (type != OP_SASSIGN) | |
1354 | goto nomod; | |
5d82c453 GA |
1355 | goto lvalue_func; |
1356 | case OP_SUBSTR: | |
1357 | if (o->op_private == 4) /* don't allow 4 arg substr as lvalue */ | |
1358 | goto nomod; | |
5f05dabc | 1359 | /* FALL THROUGH */ |
a0d0e21e | 1360 | case OP_POS: |
463ee0b2 | 1361 | case OP_VEC: |
5d82c453 | 1362 | lvalue_func: |
11343788 MB |
1363 | pad_free(o->op_targ); |
1364 | o->op_targ = pad_alloc(o->op_type, SVs_PADMY); | |
5dc0d613 | 1365 | assert(SvTYPE(PAD_SV(o->op_targ)) == SVt_NULL); |
11343788 MB |
1366 | if (o->op_flags & OPf_KIDS) |
1367 | mod(cBINOPo->op_first->op_sibling, type); | |
463ee0b2 | 1368 | break; |
a0d0e21e | 1369 | |
463ee0b2 LW |
1370 | case OP_AELEM: |
1371 | case OP_HELEM: | |
11343788 | 1372 | ref(cBINOPo->op_first, o->op_type); |
68dc0745 | 1373 | if (type == OP_ENTERSUB && |
5dc0d613 MB |
1374 | !(o->op_private & (OPpLVAL_INTRO | OPpDEREF))) |
1375 | o->op_private |= OPpLVAL_DEFER; | |
3280af22 | 1376 | PL_modcount++; |
463ee0b2 LW |
1377 | break; |
1378 | ||
1379 | case OP_SCOPE: | |
1380 | case OP_LEAVE: | |
1381 | case OP_ENTER: | |
11343788 MB |
1382 | if (o->op_flags & OPf_KIDS) |
1383 | mod(cLISTOPo->op_last, type); | |
a0d0e21e LW |
1384 | break; |
1385 | ||
1386 | case OP_NULL: | |
638bc118 GS |
1387 | if (o->op_flags & OPf_SPECIAL) /* do BLOCK */ |
1388 | goto nomod; | |
1389 | else if (!(o->op_flags & OPf_KIDS)) | |
463ee0b2 | 1390 | break; |
11343788 MB |
1391 | if (o->op_targ != OP_LIST) { |
1392 | mod(cBINOPo->op_first, type); | |
a0d0e21e LW |
1393 | break; |
1394 | } | |
1395 | /* FALL THROUGH */ | |
463ee0b2 | 1396 | case OP_LIST: |
11343788 | 1397 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
463ee0b2 LW |
1398 | mod(kid, type); |
1399 | break; | |
1400 | } | |
11343788 | 1401 | o->op_flags |= OPf_MOD; |
a0d0e21e LW |
1402 | |
1403 | if (type == OP_AASSIGN || type == OP_SASSIGN) | |
11343788 | 1404 | o->op_flags |= OPf_SPECIAL|OPf_REF; |
a0d0e21e | 1405 | else if (!type) { |
11343788 MB |
1406 | o->op_private |= OPpLVAL_INTRO; |
1407 | o->op_flags &= ~OPf_SPECIAL; | |
3280af22 | 1408 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 1409 | } |
a0d0e21e | 1410 | else if (type != OP_GREPSTART && type != OP_ENTERSUB) |
11343788 MB |
1411 | o->op_flags |= OPf_REF; |
1412 | return o; | |
463ee0b2 LW |
1413 | } |
1414 | ||
864dbfa3 | 1415 | STATIC bool |
cea2e8a9 | 1416 | S_scalar_mod_type(pTHX_ OP *o, I32 type) |
3fe9a6f1 | 1417 | { |
1418 | switch (type) { | |
1419 | case OP_SASSIGN: | |
5196be3e | 1420 | if (o->op_type == OP_RV2GV) |
3fe9a6f1 | 1421 | return FALSE; |
1422 | /* FALL THROUGH */ | |
1423 | case OP_PREINC: | |
1424 | case OP_PREDEC: | |
1425 | case OP_POSTINC: | |
1426 | case OP_POSTDEC: | |
1427 | case OP_I_PREINC: | |
1428 | case OP_I_PREDEC: | |
1429 | case OP_I_POSTINC: | |
1430 | case OP_I_POSTDEC: | |
1431 | case OP_POW: | |
1432 | case OP_MULTIPLY: | |
1433 | case OP_DIVIDE: | |
1434 | case OP_MODULO: | |
1435 | case OP_REPEAT: | |
1436 | case OP_ADD: | |
1437 | case OP_SUBTRACT: | |
1438 | case OP_I_MULTIPLY: | |
1439 | case OP_I_DIVIDE: | |
1440 | case OP_I_MODULO: | |
1441 | case OP_I_ADD: | |
1442 | case OP_I_SUBTRACT: | |
1443 | case OP_LEFT_SHIFT: | |
1444 | case OP_RIGHT_SHIFT: | |
1445 | case OP_BIT_AND: | |
1446 | case OP_BIT_XOR: | |
1447 | case OP_BIT_OR: | |
1448 | case OP_CONCAT: | |
1449 | case OP_SUBST: | |
1450 | case OP_TRANS: | |
49e9fbe6 GS |
1451 | case OP_READ: |
1452 | case OP_SYSREAD: | |
1453 | case OP_RECV: | |
bf4b1e52 GS |
1454 | case OP_ANDASSIGN: |
1455 | case OP_ORASSIGN: | |
3fe9a6f1 | 1456 | return TRUE; |
1457 | default: | |
1458 | return FALSE; | |
1459 | } | |
1460 | } | |
1461 | ||
35cd451c | 1462 | STATIC bool |
cea2e8a9 | 1463 | S_is_handle_constructor(pTHX_ OP *o, I32 argnum) |
35cd451c GS |
1464 | { |
1465 | switch (o->op_type) { | |
1466 | case OP_PIPE_OP: | |
1467 | case OP_SOCKPAIR: | |
1468 | if (argnum == 2) | |
1469 | return TRUE; | |
1470 | /* FALL THROUGH */ | |
1471 | case OP_SYSOPEN: | |
1472 | case OP_OPEN: | |
ded8aa31 | 1473 | case OP_SELECT: /* XXX c.f. SelectSaver.pm */ |
35cd451c GS |
1474 | case OP_SOCKET: |
1475 | case OP_OPEN_DIR: | |
1476 | case OP_ACCEPT: | |
1477 | if (argnum == 1) | |
1478 | return TRUE; | |
1479 | /* FALL THROUGH */ | |
1480 | default: | |
1481 | return FALSE; | |
1482 | } | |
1483 | } | |
1484 | ||
463ee0b2 | 1485 | OP * |
864dbfa3 | 1486 | Perl_refkids(pTHX_ OP *o, I32 type) |
463ee0b2 LW |
1487 | { |
1488 | OP *kid; | |
11343788 MB |
1489 | if (o && o->op_flags & OPf_KIDS) { |
1490 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
463ee0b2 LW |
1491 | ref(kid, type); |
1492 | } | |
11343788 | 1493 | return o; |
463ee0b2 LW |
1494 | } |
1495 | ||
1496 | OP * | |
864dbfa3 | 1497 | Perl_ref(pTHX_ OP *o, I32 type) |
463ee0b2 LW |
1498 | { |
1499 | OP *kid; | |
463ee0b2 | 1500 | |
3280af22 | 1501 | if (!o || PL_error_count) |
11343788 | 1502 | return o; |
463ee0b2 | 1503 | |
11343788 | 1504 | switch (o->op_type) { |
a0d0e21e | 1505 | case OP_ENTERSUB: |
e55aaa0e | 1506 | if ((type == OP_DEFINED || type == OP_LOCK) && |
11343788 MB |
1507 | !(o->op_flags & OPf_STACKED)) { |
1508 | o->op_type = OP_RV2CV; /* entersub => rv2cv */ | |
22c35a8c | 1509 | o->op_ppaddr = PL_ppaddr[OP_RV2CV]; |
11343788 MB |
1510 | assert(cUNOPo->op_first->op_type == OP_NULL); |
1511 | null(((LISTOP*)cUNOPo->op_first)->op_first); /* disable pushmark */ | |
1512 | o->op_flags |= OPf_SPECIAL; | |
8990e307 LW |
1513 | } |
1514 | break; | |
aeea060c | 1515 | |
463ee0b2 | 1516 | case OP_COND_EXPR: |
11343788 | 1517 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
463ee0b2 LW |
1518 | ref(kid, type); |
1519 | break; | |
8990e307 | 1520 | case OP_RV2SV: |
35cd451c GS |
1521 | if (type == OP_DEFINED) |
1522 | o->op_flags |= OPf_SPECIAL; /* don't create GV */ | |
11343788 | 1523 | ref(cUNOPo->op_first, o->op_type); |
4633a7c4 LW |
1524 | /* FALL THROUGH */ |
1525 | case OP_PADSV: | |
5f05dabc | 1526 | if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) { |
5dc0d613 MB |
1527 | o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV |
1528 | : type == OP_RV2HV ? OPpDEREF_HV | |
1529 | : OPpDEREF_SV); | |
11343788 | 1530 | o->op_flags |= OPf_MOD; |
a0d0e21e | 1531 | } |
8990e307 LW |
1532 | break; |
1533 | ||
2faa37cc | 1534 | case OP_THREADSV: |
a863c7d1 MB |
1535 | o->op_flags |= OPf_MOD; /* XXX ??? */ |
1536 | break; | |
1537 | ||
463ee0b2 LW |
1538 | case OP_RV2AV: |
1539 | case OP_RV2HV: | |
aeea060c | 1540 | o->op_flags |= OPf_REF; |
8990e307 | 1541 | /* FALL THROUGH */ |
463ee0b2 | 1542 | case OP_RV2GV: |
35cd451c GS |
1543 | if (type == OP_DEFINED) |
1544 | o->op_flags |= OPf_SPECIAL; /* don't create GV */ | |
11343788 | 1545 | ref(cUNOPo->op_first, o->op_type); |
463ee0b2 | 1546 | break; |
8990e307 | 1547 | |
463ee0b2 LW |
1548 | case OP_PADAV: |
1549 | case OP_PADHV: | |
aeea060c | 1550 | o->op_flags |= OPf_REF; |
79072805 | 1551 | break; |
aeea060c | 1552 | |
8990e307 | 1553 | case OP_SCALAR: |
79072805 | 1554 | case OP_NULL: |
11343788 | 1555 | if (!(o->op_flags & OPf_KIDS)) |
463ee0b2 | 1556 | break; |
11343788 | 1557 | ref(cBINOPo->op_first, type); |
79072805 LW |
1558 | break; |
1559 | case OP_AELEM: | |
1560 | case OP_HELEM: | |
11343788 | 1561 | ref(cBINOPo->op_first, o->op_type); |
5f05dabc | 1562 | if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) { |
5dc0d613 MB |
1563 | o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV |
1564 | : type == OP_RV2HV ? OPpDEREF_HV | |
1565 | : OPpDEREF_SV); | |
11343788 | 1566 | o->op_flags |= OPf_MOD; |
8990e307 | 1567 | } |
79072805 LW |
1568 | break; |
1569 | ||
463ee0b2 | 1570 | case OP_SCOPE: |
79072805 LW |
1571 | case OP_LEAVE: |
1572 | case OP_ENTER: | |
8990e307 | 1573 | case OP_LIST: |
11343788 | 1574 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1575 | break; |
11343788 | 1576 | ref(cLISTOPo->op_last, type); |
79072805 | 1577 | break; |
a0d0e21e LW |
1578 | default: |
1579 | break; | |
79072805 | 1580 | } |
11343788 | 1581 | return scalar(o); |
8990e307 | 1582 | |
79072805 LW |
1583 | } |
1584 | ||
1585 | OP * | |
864dbfa3 | 1586 | Perl_my(pTHX_ OP *o) |
93a17b20 LW |
1587 | { |
1588 | OP *kid; | |
93a17b20 LW |
1589 | I32 type; |
1590 | ||
3280af22 | 1591 | if (!o || PL_error_count) |
11343788 | 1592 | return o; |
93a17b20 | 1593 | |
11343788 | 1594 | type = o->op_type; |
93a17b20 | 1595 | if (type == OP_LIST) { |
11343788 | 1596 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
93a17b20 | 1597 | my(kid); |
dab48698 | 1598 | } else if (type == OP_UNDEF) { |
7766148a | 1599 | return o; |
dab48698 | 1600 | } else if (type != OP_PADSV && |
93a17b20 LW |
1601 | type != OP_PADAV && |
1602 | type != OP_PADHV && | |
1603 | type != OP_PUSHMARK) | |
1604 | { | |
cea2e8a9 | 1605 | yyerror(Perl_form(aTHX_ "Can't declare %s in my", PL_op_desc[o->op_type])); |
11343788 | 1606 | return o; |
93a17b20 | 1607 | } |
11343788 MB |
1608 | o->op_flags |= OPf_MOD; |
1609 | o->op_private |= OPpLVAL_INTRO; | |
1610 | return o; | |
93a17b20 LW |
1611 | } |
1612 | ||
1613 | OP * | |
864dbfa3 | 1614 | Perl_sawparens(pTHX_ OP *o) |
79072805 LW |
1615 | { |
1616 | if (o) | |
1617 | o->op_flags |= OPf_PARENS; | |
1618 | return o; | |
1619 | } | |
1620 | ||
1621 | OP * | |
864dbfa3 | 1622 | Perl_bind_match(pTHX_ I32 type, OP *left, OP *right) |
79072805 | 1623 | { |
d008e5eb | 1624 | dTHR; |
11343788 | 1625 | OP *o; |
79072805 | 1626 | |
599cee73 PM |
1627 | if (ckWARN(WARN_UNSAFE) && |
1628 | (left->op_type == OP_RV2AV || | |
1629 | left->op_type == OP_RV2HV || | |
1630 | left->op_type == OP_PADAV || | |
1631 | left->op_type == OP_PADHV)) { | |
22c35a8c | 1632 | char *desc = PL_op_desc[(right->op_type == OP_SUBST || |
599cee73 PM |
1633 | right->op_type == OP_TRANS) |
1634 | ? right->op_type : OP_MATCH]; | |
1635 | char *sample = ((left->op_type == OP_RV2AV || | |
1636 | left->op_type == OP_PADAV) | |
1637 | ? "@array" : "%hash"); | |
cea2e8a9 | 1638 | Perl_warner(aTHX_ WARN_UNSAFE, |
599cee73 PM |
1639 | "Applying %s to %s will act on scalar(%s)", |
1640 | desc, sample, sample); | |
2ae324a7 | 1641 | } |
1642 | ||
79072805 LW |
1643 | if (right->op_type == OP_MATCH || |
1644 | right->op_type == OP_SUBST || | |
1645 | right->op_type == OP_TRANS) { | |
1646 | right->op_flags |= OPf_STACKED; | |
1647 | if (right->op_type != OP_MATCH) | |
463ee0b2 | 1648 | left = mod(left, right->op_type); |
79072805 | 1649 | if (right->op_type == OP_TRANS) |
11343788 | 1650 | o = newBINOP(OP_NULL, OPf_STACKED, scalar(left), right); |
79072805 | 1651 | else |
11343788 | 1652 | o = prepend_elem(right->op_type, scalar(left), right); |
79072805 | 1653 | if (type == OP_NOT) |
11343788 MB |
1654 | return newUNOP(OP_NOT, 0, scalar(o)); |
1655 | return o; | |
79072805 LW |
1656 | } |
1657 | else | |
1658 | return bind_match(type, left, | |
1659 | pmruntime(newPMOP(OP_MATCH, 0), right, Nullop)); | |
1660 | } | |
1661 | ||
1662 | OP * | |
864dbfa3 | 1663 | Perl_invert(pTHX_ OP *o) |
79072805 | 1664 | { |
11343788 MB |
1665 | if (!o) |
1666 | return o; | |
79072805 | 1667 | /* XXX need to optimize away NOT NOT here? Or do we let optimizer do it? */ |
11343788 | 1668 | return newUNOP(OP_NOT, OPf_SPECIAL, scalar(o)); |
79072805 LW |
1669 | } |
1670 | ||
1671 | OP * | |
864dbfa3 | 1672 | Perl_scope(pTHX_ OP *o) |
79072805 LW |
1673 | { |
1674 | if (o) { | |
3280af22 | 1675 | if (o->op_flags & OPf_PARENS || PERLDB_NOOPT || PL_tainting) { |
463ee0b2 LW |
1676 | o = prepend_elem(OP_LINESEQ, newOP(OP_ENTER, 0), o); |
1677 | o->op_type = OP_LEAVE; | |
22c35a8c | 1678 | o->op_ppaddr = PL_ppaddr[OP_LEAVE]; |
463ee0b2 LW |
1679 | } |
1680 | else { | |
1681 | if (o->op_type == OP_LINESEQ) { | |
1682 | OP *kid; | |
1683 | o->op_type = OP_SCOPE; | |
22c35a8c | 1684 | o->op_ppaddr = PL_ppaddr[OP_SCOPE]; |
463ee0b2 | 1685 | kid = ((LISTOP*)o)->op_first; |
748a9306 | 1686 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE){ |
7399586d HS |
1687 | kid->op_type = OP_SETSTATE; |
1688 | kid->op_ppaddr = PL_ppaddr[OP_SETSTATE]; | |
748a9306 | 1689 | } |
463ee0b2 LW |
1690 | } |
1691 | else | |
748a9306 | 1692 | o = newLISTOP(OP_SCOPE, 0, o, Nullop); |
463ee0b2 | 1693 | } |
79072805 LW |
1694 | } |
1695 | return o; | |
1696 | } | |
1697 | ||
b3ac6de7 | 1698 | void |
864dbfa3 | 1699 | Perl_save_hints(pTHX) |
b3ac6de7 | 1700 | { |
3280af22 NIS |
1701 | SAVEI32(PL_hints); |
1702 | SAVESPTR(GvHV(PL_hintgv)); | |
1703 | GvHV(PL_hintgv) = newHVhv(GvHV(PL_hintgv)); | |
1704 | SAVEFREESV(GvHV(PL_hintgv)); | |
b3ac6de7 IZ |
1705 | } |
1706 | ||
a0d0e21e | 1707 | int |
864dbfa3 | 1708 | Perl_block_start(pTHX_ int full) |
79072805 | 1709 | { |
11343788 | 1710 | dTHR; |
3280af22 | 1711 | int retval = PL_savestack_ix; |
b3ac6de7 | 1712 | |
3280af22 | 1713 | SAVEI32(PL_comppad_name_floor); |
55497cff | 1714 | if (full) { |
3280af22 NIS |
1715 | if ((PL_comppad_name_fill = AvFILLp(PL_comppad_name)) > 0) |
1716 | PL_comppad_name_floor = PL_comppad_name_fill; | |
55497cff | 1717 | else |
3280af22 NIS |
1718 | PL_comppad_name_floor = 0; |
1719 | } | |
1720 | SAVEI32(PL_min_intro_pending); | |
1721 | SAVEI32(PL_max_intro_pending); | |
1722 | PL_min_intro_pending = 0; | |
1723 | SAVEI32(PL_comppad_name_fill); | |
1724 | SAVEI32(PL_padix_floor); | |
1725 | PL_padix_floor = PL_padix; | |
1726 | PL_pad_reset_pending = FALSE; | |
b3ac6de7 | 1727 | SAVEHINTS(); |
3280af22 | 1728 | PL_hints &= ~HINT_BLOCK_SCOPE; |
e24b16f9 | 1729 | SAVEPPTR(PL_compiling.cop_warnings); |
0453d815 | 1730 | if (! specialWARN(PL_compiling.cop_warnings)) { |
599cee73 PM |
1731 | PL_compiling.cop_warnings = newSVsv(PL_compiling.cop_warnings) ; |
1732 | SAVEFREESV(PL_compiling.cop_warnings) ; | |
1733 | } | |
1734 | ||
1735 | ||
a0d0e21e LW |
1736 | return retval; |
1737 | } | |
1738 | ||
1739 | OP* | |
864dbfa3 | 1740 | Perl_block_end(pTHX_ I32 floor, OP *seq) |
a0d0e21e | 1741 | { |
11343788 | 1742 | dTHR; |
3280af22 | 1743 | int needblockscope = PL_hints & HINT_BLOCK_SCOPE; |
a0d0e21e | 1744 | OP* retval = scalarseq(seq); |
a0d0e21e | 1745 | LEAVE_SCOPE(floor); |
3280af22 | 1746 | PL_pad_reset_pending = FALSE; |
e24b16f9 | 1747 | PL_compiling.op_private = PL_hints; |
a0d0e21e | 1748 | if (needblockscope) |
3280af22 NIS |
1749 | PL_hints |= HINT_BLOCK_SCOPE; /* propagate out */ |
1750 | pad_leavemy(PL_comppad_name_fill); | |
1751 | PL_cop_seqmax++; | |
a0d0e21e LW |
1752 | return retval; |
1753 | } | |
1754 | ||
76e3520e | 1755 | STATIC OP * |
cea2e8a9 | 1756 | S_newDEFSVOP(pTHX) |
54b9620d MB |
1757 | { |
1758 | #ifdef USE_THREADS | |
1759 | OP *o = newOP(OP_THREADSV, 0); | |
1760 | o->op_targ = find_threadsv("_"); | |
1761 | return o; | |
1762 | #else | |
3280af22 | 1763 | return newSVREF(newGVOP(OP_GV, 0, PL_defgv)); |
54b9620d MB |
1764 | #endif /* USE_THREADS */ |
1765 | } | |
1766 | ||
a0d0e21e | 1767 | void |
864dbfa3 | 1768 | Perl_newPROG(pTHX_ OP *o) |
a0d0e21e | 1769 | { |
11343788 | 1770 | dTHR; |
3280af22 | 1771 | if (PL_in_eval) { |
b295d113 TH |
1772 | if (PL_eval_root) |
1773 | return; | |
faef0170 HS |
1774 | PL_eval_root = newUNOP(OP_LEAVEEVAL, |
1775 | ((PL_in_eval & EVAL_KEEPERR) | |
1776 | ? OPf_SPECIAL : 0), o); | |
3280af22 NIS |
1777 | PL_eval_start = linklist(PL_eval_root); |
1778 | PL_eval_root->op_next = 0; | |
1779 | peep(PL_eval_start); | |
a0d0e21e LW |
1780 | } |
1781 | else { | |
5dc0d613 | 1782 | if (!o) |
a0d0e21e | 1783 | return; |
3280af22 NIS |
1784 | PL_main_root = scope(sawparens(scalarvoid(o))); |
1785 | PL_curcop = &PL_compiling; | |
1786 | PL_main_start = LINKLIST(PL_main_root); | |
1787 | PL_main_root->op_next = 0; | |
1788 | peep(PL_main_start); | |
1789 | PL_compcv = 0; | |
3841441e | 1790 | |
4fdae800 | 1791 | /* Register with debugger */ |
84902520 | 1792 | if (PERLDB_INTER) { |
864dbfa3 | 1793 | CV *cv = get_cv("DB::postponed", FALSE); |
3841441e CS |
1794 | if (cv) { |
1795 | dSP; | |
924508f0 | 1796 | PUSHMARK(SP); |
3280af22 | 1797 | XPUSHs((SV*)PL_compiling.cop_filegv); |
3841441e | 1798 | PUTBACK; |
864dbfa3 | 1799 | call_sv((SV*)cv, G_DISCARD); |
3841441e CS |
1800 | } |
1801 | } | |
79072805 | 1802 | } |
79072805 LW |
1803 | } |
1804 | ||
1805 | OP * | |
864dbfa3 | 1806 | Perl_localize(pTHX_ OP *o, I32 lex) |
79072805 LW |
1807 | { |
1808 | if (o->op_flags & OPf_PARENS) | |
1809 | list(o); | |
8990e307 | 1810 | else { |
d008e5eb | 1811 | dTHR; |
599cee73 | 1812 | if (ckWARN(WARN_PARENTHESIS) && PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == ',') { |
8990e307 | 1813 | char *s; |
834a4ddd | 1814 | for (s = PL_bufptr; *s && (isALNUM(*s) || (*s & 0x80) || strchr("@$%, ",*s)); s++) ; |
a0d0e21e | 1815 | if (*s == ';' || *s == '=') |
cea2e8a9 | 1816 | Perl_warner(aTHX_ WARN_PARENTHESIS, "Parentheses missing around \"%s\" list", |
599cee73 | 1817 | lex ? "my" : "local"); |
8990e307 LW |
1818 | } |
1819 | } | |
3280af22 NIS |
1820 | PL_in_my = FALSE; |
1821 | PL_in_my_stash = Nullhv; | |
93a17b20 LW |
1822 | if (lex) |
1823 | return my(o); | |
1824 | else | |
463ee0b2 | 1825 | return mod(o, OP_NULL); /* a bit kludgey */ |
79072805 LW |
1826 | } |
1827 | ||
1828 | OP * | |
864dbfa3 | 1829 | Perl_jmaybe(pTHX_ OP *o) |
79072805 LW |
1830 | { |
1831 | if (o->op_type == OP_LIST) { | |
554b3eca MB |
1832 | OP *o2; |
1833 | #ifdef USE_THREADS | |
2faa37cc | 1834 | o2 = newOP(OP_THREADSV, 0); |
54b9620d | 1835 | o2->op_targ = find_threadsv(";"); |
554b3eca MB |
1836 | #else |
1837 | o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))), | |
1838 | #endif /* USE_THREADS */ | |
1839 | o = convert(OP_JOIN, 0, prepend_elem(OP_LIST, o2, o)); | |
79072805 LW |
1840 | } |
1841 | return o; | |
1842 | } | |
1843 | ||
1844 | OP * | |
864dbfa3 | 1845 | Perl_fold_constants(pTHX_ register OP *o) |
79072805 | 1846 | { |
11343788 | 1847 | dTHR; |
79072805 LW |
1848 | register OP *curop; |
1849 | I32 type = o->op_type; | |
748a9306 | 1850 | SV *sv; |
79072805 | 1851 | |
22c35a8c | 1852 | if (PL_opargs[type] & OA_RETSCALAR) |
79072805 | 1853 | scalar(o); |
b162f9ea | 1854 | if (PL_opargs[type] & OA_TARGET && !o->op_targ) |
ed6116ce | 1855 | o->op_targ = pad_alloc(type, SVs_PADTMP); |
79072805 | 1856 | |
eac055e9 GS |
1857 | /* integerize op, unless it happens to be C<-foo>. |
1858 | * XXX should pp_i_negate() do magic string negation instead? */ | |
1859 | if ((PL_opargs[type] & OA_OTHERINT) && (PL_hints & HINT_INTEGER) | |
1860 | && !(type == OP_NEGATE && cUNOPo->op_first->op_type == OP_CONST | |
1861 | && (cUNOPo->op_first->op_private & OPpCONST_BARE))) | |
1862 | { | |
22c35a8c | 1863 | o->op_ppaddr = PL_ppaddr[type = ++(o->op_type)]; |
eac055e9 | 1864 | } |
85e6fe83 | 1865 | |
22c35a8c | 1866 | if (!(PL_opargs[type] & OA_FOLDCONST)) |
79072805 LW |
1867 | goto nope; |
1868 | ||
de939608 | 1869 | switch (type) { |
7a52d87a GS |
1870 | case OP_NEGATE: |
1871 | /* XXX might want a ck_negate() for this */ | |
1872 | cUNOPo->op_first->op_private &= ~OPpCONST_STRICT; | |
1873 | break; | |
de939608 CS |
1874 | case OP_SPRINTF: |
1875 | case OP_UCFIRST: | |
1876 | case OP_LCFIRST: | |
1877 | case OP_UC: | |
1878 | case OP_LC: | |
69dcf70c MB |
1879 | case OP_SLT: |
1880 | case OP_SGT: | |
1881 | case OP_SLE: | |
1882 | case OP_SGE: | |
1883 | case OP_SCMP: | |
1884 | ||
de939608 CS |
1885 | if (o->op_private & OPpLOCALE) |
1886 | goto nope; | |
1887 | } | |
1888 | ||
3280af22 | 1889 | if (PL_error_count) |
a0d0e21e LW |
1890 | goto nope; /* Don't try to run w/ errors */ |
1891 | ||
79072805 | 1892 | for (curop = LINKLIST(o); curop != o; curop = LINKLIST(curop)) { |
93a17b20 | 1893 | if (curop->op_type != OP_CONST && |
7a52d87a GS |
1894 | curop->op_type != OP_LIST && |
1895 | curop->op_type != OP_SCALAR && | |
1896 | curop->op_type != OP_NULL && | |
1897 | curop->op_type != OP_PUSHMARK) | |
1898 | { | |
79072805 LW |
1899 | goto nope; |
1900 | } | |
1901 | } | |
1902 | ||
1903 | curop = LINKLIST(o); | |
1904 | o->op_next = 0; | |
533c011a | 1905 | PL_op = curop; |
cea2e8a9 | 1906 | CALLRUNOPS(aTHX); |
3280af22 | 1907 | sv = *(PL_stack_sp--); |
748a9306 | 1908 | if (o->op_targ && sv == PAD_SV(o->op_targ)) /* grab pad temp? */ |
79072805 | 1909 | pad_swipe(o->op_targ); |
748a9306 LW |
1910 | else if (SvTEMP(sv)) { /* grab mortal temp? */ |
1911 | (void)SvREFCNT_inc(sv); | |
1912 | SvTEMP_off(sv); | |
85e6fe83 | 1913 | } |
79072805 LW |
1914 | op_free(o); |
1915 | if (type == OP_RV2GV) | |
b1cb66bf | 1916 | return newGVOP(OP_GV, 0, (GV*)sv); |
748a9306 | 1917 | else { |
ee580363 GS |
1918 | /* try to smush double to int, but don't smush -2.0 to -2 */ |
1919 | if ((SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK)) == SVf_NOK && | |
1920 | type != OP_NEGATE) | |
1921 | { | |
748a9306 | 1922 | IV iv = SvIV(sv); |
65202027 | 1923 | if ((NV)iv == SvNV(sv)) { |
748a9306 LW |
1924 | SvREFCNT_dec(sv); |
1925 | sv = newSViv(iv); | |
1926 | } | |
b1cb66bf | 1927 | else |
1928 | SvIOK_off(sv); /* undo SvIV() damage */ | |
748a9306 LW |
1929 | } |
1930 | return newSVOP(OP_CONST, 0, sv); | |
1931 | } | |
aeea060c | 1932 | |
79072805 | 1933 | nope: |
22c35a8c | 1934 | if (!(PL_opargs[type] & OA_OTHERINT)) |
79072805 | 1935 | return o; |
79072805 | 1936 | |
3280af22 | 1937 | if (!(PL_hints & HINT_INTEGER)) { |
a0d0e21e | 1938 | if (type == OP_DIVIDE || !(o->op_flags & OPf_KIDS)) |
85e6fe83 LW |
1939 | return o; |
1940 | ||
1941 | for (curop = ((UNOP*)o)->op_first; curop; curop = curop->op_sibling) { | |
1942 | if (curop->op_type == OP_CONST) { | |
b1cb66bf | 1943 | if (SvIOK(((SVOP*)curop)->op_sv)) |
85e6fe83 LW |
1944 | continue; |
1945 | return o; | |
1946 | } | |
22c35a8c | 1947 | if (PL_opargs[curop->op_type] & OA_RETINTEGER) |
79072805 LW |
1948 | continue; |
1949 | return o; | |
1950 | } | |
22c35a8c | 1951 | o->op_ppaddr = PL_ppaddr[++(o->op_type)]; |
79072805 LW |
1952 | } |
1953 | ||
79072805 LW |
1954 | return o; |
1955 | } | |
1956 | ||
1957 | OP * | |
864dbfa3 | 1958 | Perl_gen_constant_list(pTHX_ register OP *o) |
79072805 | 1959 | { |
11343788 | 1960 | dTHR; |
79072805 | 1961 | register OP *curop; |
3280af22 | 1962 | I32 oldtmps_floor = PL_tmps_floor; |
79072805 | 1963 | |
a0d0e21e | 1964 | list(o); |
3280af22 | 1965 | if (PL_error_count) |
a0d0e21e LW |
1966 | return o; /* Don't attempt to run with errors */ |
1967 | ||
533c011a | 1968 | PL_op = curop = LINKLIST(o); |
a0d0e21e | 1969 | o->op_next = 0; |
cea2e8a9 GS |
1970 | pp_pushmark(); |
1971 | CALLRUNOPS(aTHX); | |
533c011a | 1972 | PL_op = curop; |
cea2e8a9 | 1973 | pp_anonlist(); |
3280af22 | 1974 | PL_tmps_floor = oldtmps_floor; |
79072805 LW |
1975 | |
1976 | o->op_type = OP_RV2AV; | |
22c35a8c | 1977 | o->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
79072805 | 1978 | curop = ((UNOP*)o)->op_first; |
3280af22 | 1979 | ((UNOP*)o)->op_first = newSVOP(OP_CONST, 0, SvREFCNT_inc(*PL_stack_sp--)); |
79072805 | 1980 | op_free(curop); |
79072805 LW |
1981 | linklist(o); |
1982 | return list(o); | |
1983 | } | |
1984 | ||
1985 | OP * | |
864dbfa3 | 1986 | Perl_convert(pTHX_ I32 type, I32 flags, OP *o) |
79072805 LW |
1987 | { |
1988 | OP *kid; | |
a0d0e21e | 1989 | OP *last = 0; |
79072805 | 1990 | |
11343788 MB |
1991 | if (!o || o->op_type != OP_LIST) |
1992 | o = newLISTOP(OP_LIST, 0, o, Nullop); | |
748a9306 | 1993 | else |
5dc0d613 | 1994 | o->op_flags &= ~OPf_WANT; |
79072805 | 1995 | |
22c35a8c | 1996 | if (!(PL_opargs[type] & OA_MARK)) |
11343788 | 1997 | null(cLISTOPo->op_first); |
8990e307 | 1998 | |
11343788 | 1999 | o->op_type = type; |
22c35a8c | 2000 | o->op_ppaddr = PL_ppaddr[type]; |
11343788 | 2001 | o->op_flags |= flags; |
79072805 | 2002 | |
11343788 MB |
2003 | o = CHECKOP(type, o); |
2004 | if (o->op_type != type) | |
2005 | return o; | |
79072805 | 2006 | |
11343788 | 2007 | if (cLISTOPo->op_children < 7) { |
79072805 | 2008 | /* XXX do we really need to do this if we're done appending?? */ |
11343788 | 2009 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
79072805 | 2010 | last = kid; |
11343788 | 2011 | cLISTOPo->op_last = last; /* in case check substituted last arg */ |
79072805 LW |
2012 | } |
2013 | ||
11343788 | 2014 | return fold_constants(o); |
79072805 LW |
2015 | } |
2016 | ||
2017 | /* List constructors */ | |
2018 | ||
2019 | OP * | |
864dbfa3 | 2020 | Perl_append_elem(pTHX_ I32 type, OP *first, OP *last) |
79072805 LW |
2021 | { |
2022 | if (!first) | |
2023 | return last; | |
8990e307 LW |
2024 | |
2025 | if (!last) | |
79072805 | 2026 | return first; |
8990e307 | 2027 | |
a0d0e21e LW |
2028 | if (first->op_type != type || type==OP_LIST && first->op_flags & OPf_PARENS) |
2029 | return newLISTOP(type, 0, first, last); | |
79072805 | 2030 | |
a0d0e21e LW |
2031 | if (first->op_flags & OPf_KIDS) |
2032 | ((LISTOP*)first)->op_last->op_sibling = last; | |
2033 | else { | |
2034 | first->op_flags |= OPf_KIDS; | |
2035 | ((LISTOP*)first)->op_first = last; | |
2036 | } | |
2037 | ((LISTOP*)first)->op_last = last; | |
2038 | ((LISTOP*)first)->op_children++; | |
2039 | return first; | |
79072805 LW |
2040 | } |
2041 | ||
2042 | OP * | |
864dbfa3 | 2043 | Perl_append_list(pTHX_ I32 type, LISTOP *first, LISTOP *last) |
79072805 LW |
2044 | { |
2045 | if (!first) | |
2046 | return (OP*)last; | |
8990e307 LW |
2047 | |
2048 | if (!last) | |
79072805 | 2049 | return (OP*)first; |
8990e307 LW |
2050 | |
2051 | if (first->op_type != type) | |
79072805 | 2052 | return prepend_elem(type, (OP*)first, (OP*)last); |
8990e307 LW |
2053 | |
2054 | if (last->op_type != type) | |
79072805 LW |
2055 | return append_elem(type, (OP*)first, (OP*)last); |
2056 | ||
2057 | first->op_last->op_sibling = last->op_first; | |
2058 | first->op_last = last->op_last; | |
2059 | first->op_children += last->op_children; | |
2060 | if (first->op_children) | |
acb74605 | 2061 | first->op_flags |= OPf_KIDS; |
b7dc083c NIS |
2062 | |
2063 | #ifdef PL_OP_SLAB_ALLOC | |
2064 | #else | |
2065 | Safefree(last); | |
2066 | #endif | |
79072805 LW |
2067 | return (OP*)first; |
2068 | } | |
2069 | ||
2070 | OP * | |
864dbfa3 | 2071 | Perl_prepend_elem(pTHX_ I32 type, OP *first, OP *last) |
79072805 LW |
2072 | { |
2073 | if (!first) | |
2074 | return last; | |
8990e307 LW |
2075 | |
2076 | if (!last) | |
79072805 | 2077 | return first; |
8990e307 LW |
2078 | |
2079 | if (last->op_type == type) { | |
2080 | if (type == OP_LIST) { /* already a PUSHMARK there */ | |
2081 | first->op_sibling = ((LISTOP*)last)->op_first->op_sibling; | |
2082 | ((LISTOP*)last)->op_first->op_sibling = first; | |
2083 | } | |
2084 | else { | |
2085 | if (!(last->op_flags & OPf_KIDS)) { | |
2086 | ((LISTOP*)last)->op_last = first; | |
2087 | last->op_flags |= OPf_KIDS; | |
2088 | } | |
2089 | first->op_sibling = ((LISTOP*)last)->op_first; | |
2090 | ((LISTOP*)last)->op_first = first; | |
79072805 | 2091 | } |
79072805 LW |
2092 | ((LISTOP*)last)->op_children++; |
2093 | return last; | |
2094 | } | |
2095 | ||
2096 | return newLISTOP(type, 0, first, last); | |
2097 | } | |
2098 | ||
2099 | /* Constructors */ | |
2100 | ||
2101 | OP * | |
864dbfa3 | 2102 | Perl_newNULLLIST(pTHX) |
79072805 | 2103 | { |
8990e307 LW |
2104 | return newOP(OP_STUB, 0); |
2105 | } | |
2106 | ||
2107 | OP * | |
864dbfa3 | 2108 | Perl_force_list(pTHX_ OP *o) |
8990e307 | 2109 | { |
11343788 MB |
2110 | if (!o || o->op_type != OP_LIST) |
2111 | o = newLISTOP(OP_LIST, 0, o, Nullop); | |
2112 | null(o); | |
2113 | return o; | |
79072805 LW |
2114 | } |
2115 | ||
2116 | OP * | |
864dbfa3 | 2117 | Perl_newLISTOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) |
79072805 LW |
2118 | { |
2119 | LISTOP *listop; | |
2120 | ||
b7dc083c | 2121 | NewOp(1101, listop, 1, LISTOP); |
79072805 LW |
2122 | |
2123 | listop->op_type = type; | |
22c35a8c | 2124 | listop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2125 | listop->op_children = (first != 0) + (last != 0); |
2126 | listop->op_flags = flags; | |
79072805 LW |
2127 | |
2128 | if (!last && first) | |
2129 | last = first; | |
2130 | else if (!first && last) | |
2131 | first = last; | |
8990e307 LW |
2132 | else if (first) |
2133 | first->op_sibling = last; | |
79072805 LW |
2134 | listop->op_first = first; |
2135 | listop->op_last = last; | |
8990e307 LW |
2136 | if (type == OP_LIST) { |
2137 | OP* pushop; | |
2138 | pushop = newOP(OP_PUSHMARK, 0); | |
2139 | pushop->op_sibling = first; | |
2140 | listop->op_first = pushop; | |
2141 | listop->op_flags |= OPf_KIDS; | |
2142 | if (!last) | |
2143 | listop->op_last = pushop; | |
2144 | } | |
2145 | else if (listop->op_children) | |
2146 | listop->op_flags |= OPf_KIDS; | |
79072805 LW |
2147 | |
2148 | return (OP*)listop; | |
2149 | } | |
2150 | ||
2151 | OP * | |
864dbfa3 | 2152 | Perl_newOP(pTHX_ I32 type, I32 flags) |
79072805 | 2153 | { |
11343788 | 2154 | OP *o; |
b7dc083c | 2155 | NewOp(1101, o, 1, OP); |
11343788 | 2156 | o->op_type = type; |
22c35a8c | 2157 | o->op_ppaddr = PL_ppaddr[type]; |
11343788 | 2158 | o->op_flags = flags; |
79072805 | 2159 | |
11343788 MB |
2160 | o->op_next = o; |
2161 | o->op_private = 0 + (flags >> 8); | |
22c35a8c | 2162 | if (PL_opargs[type] & OA_RETSCALAR) |
11343788 | 2163 | scalar(o); |
22c35a8c | 2164 | if (PL_opargs[type] & OA_TARGET) |
11343788 MB |
2165 | o->op_targ = pad_alloc(type, SVs_PADTMP); |
2166 | return CHECKOP(type, o); | |
79072805 LW |
2167 | } |
2168 | ||
2169 | OP * | |
864dbfa3 | 2170 | Perl_newUNOP(pTHX_ I32 type, I32 flags, OP *first) |
79072805 LW |
2171 | { |
2172 | UNOP *unop; | |
2173 | ||
93a17b20 | 2174 | if (!first) |
aeea060c | 2175 | first = newOP(OP_STUB, 0); |
22c35a8c | 2176 | if (PL_opargs[type] & OA_MARK) |
8990e307 | 2177 | first = force_list(first); |
93a17b20 | 2178 | |
b7dc083c | 2179 | NewOp(1101, unop, 1, UNOP); |
79072805 | 2180 | unop->op_type = type; |
22c35a8c | 2181 | unop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2182 | unop->op_first = first; |
2183 | unop->op_flags = flags | OPf_KIDS; | |
c07a80fd | 2184 | unop->op_private = 1 | (flags >> 8); |
e50aee73 | 2185 | unop = (UNOP*) CHECKOP(type, unop); |
79072805 LW |
2186 | if (unop->op_next) |
2187 | return (OP*)unop; | |
2188 | ||
a0d0e21e | 2189 | return fold_constants((OP *) unop); |
79072805 LW |
2190 | } |
2191 | ||
2192 | OP * | |
864dbfa3 | 2193 | Perl_newBINOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) |
79072805 LW |
2194 | { |
2195 | BINOP *binop; | |
b7dc083c | 2196 | NewOp(1101, binop, 1, BINOP); |
79072805 LW |
2197 | |
2198 | if (!first) | |
2199 | first = newOP(OP_NULL, 0); | |
2200 | ||
2201 | binop->op_type = type; | |
22c35a8c | 2202 | binop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2203 | binop->op_first = first; |
2204 | binop->op_flags = flags | OPf_KIDS; | |
2205 | if (!last) { | |
2206 | last = first; | |
c07a80fd | 2207 | binop->op_private = 1 | (flags >> 8); |
79072805 LW |
2208 | } |
2209 | else { | |
c07a80fd | 2210 | binop->op_private = 2 | (flags >> 8); |
79072805 LW |
2211 | first->op_sibling = last; |
2212 | } | |
2213 | ||
e50aee73 | 2214 | binop = (BINOP*)CHECKOP(type, binop); |
b162f9ea | 2215 | if (binop->op_next || binop->op_type != type) |
79072805 LW |
2216 | return (OP*)binop; |
2217 | ||
7284ab6f | 2218 | binop->op_last = binop->op_first->op_sibling; |
79072805 | 2219 | |
a0d0e21e | 2220 | return fold_constants((OP *)binop); |
79072805 LW |
2221 | } |
2222 | ||
a0ed51b3 LW |
2223 | static int |
2224 | utf8compare(const void *a, const void *b) | |
2225 | { | |
2226 | int i; | |
2227 | for (i = 0; i < 10; i++) { | |
2228 | if ((*(U8**)a)[i] < (*(U8**)b)[i]) | |
2229 | return -1; | |
2230 | if ((*(U8**)a)[i] > (*(U8**)b)[i]) | |
2231 | return 1; | |
2232 | } | |
2233 | return 0; | |
2234 | } | |
2235 | ||
79072805 | 2236 | OP * |
864dbfa3 | 2237 | Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) |
79072805 | 2238 | { |
79072805 LW |
2239 | SV *tstr = ((SVOP*)expr)->op_sv; |
2240 | SV *rstr = ((SVOP*)repl)->op_sv; | |
463ee0b2 LW |
2241 | STRLEN tlen; |
2242 | STRLEN rlen; | |
ec49126f | 2243 | register U8 *t = (U8*)SvPV(tstr, tlen); |
2244 | register U8 *r = (U8*)SvPV(rstr, rlen); | |
79072805 LW |
2245 | register I32 i; |
2246 | register I32 j; | |
a0ed51b3 | 2247 | I32 del; |
79072805 | 2248 | I32 complement; |
5d06d08e | 2249 | I32 squash; |
79072805 LW |
2250 | register short *tbl; |
2251 | ||
11343788 | 2252 | complement = o->op_private & OPpTRANS_COMPLEMENT; |
a0ed51b3 | 2253 | del = o->op_private & OPpTRANS_DELETE; |
5d06d08e | 2254 | squash = o->op_private & OPpTRANS_SQUASH; |
79072805 | 2255 | |
a0ed51b3 | 2256 | if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { |
79cb57f6 | 2257 | SV* listsv = newSVpvn("# comment\n",10); |
a0ed51b3 LW |
2258 | SV* transv = 0; |
2259 | U8* tend = t + tlen; | |
2260 | U8* rend = r + rlen; | |
2261 | I32 ulen; | |
2262 | U32 tfirst = 1; | |
2263 | U32 tlast = 0; | |
2264 | I32 tdiff; | |
2265 | U32 rfirst = 1; | |
2266 | U32 rlast = 0; | |
2267 | I32 rdiff; | |
2268 | I32 diff; | |
2269 | I32 none = 0; | |
2270 | U32 max = 0; | |
2271 | I32 bits; | |
2272 | I32 grows = 0; | |
2273 | I32 havefinal = 0; | |
2274 | U32 final; | |
2275 | HV *hv; | |
2276 | I32 from_utf = o->op_private & OPpTRANS_FROM_UTF; | |
2277 | I32 to_utf = o->op_private & OPpTRANS_TO_UTF; | |
2278 | ||
2279 | if (complement) { | |
2280 | U8 tmpbuf[10]; | |
2281 | U8** cp; | |
2282 | UV nextmin = 0; | |
2283 | New(1109, cp, tlen, U8*); | |
2284 | i = 0; | |
79cb57f6 | 2285 | transv = newSVpvn("",0); |
a0ed51b3 LW |
2286 | while (t < tend) { |
2287 | cp[i++] = t; | |
2288 | t += UTF8SKIP(t); | |
2289 | if (*t == 0xff) { | |
2290 | t++; | |
2291 | t += UTF8SKIP(t); | |
2292 | } | |
2293 | } | |
2294 | qsort(cp, i, sizeof(U8*), utf8compare); | |
2295 | for (j = 0; j < i; j++) { | |
2296 | U8 *s = cp[j]; | |
2297 | UV val = utf8_to_uv(s, &ulen); | |
2298 | s += ulen; | |
2299 | diff = val - nextmin; | |
2300 | if (diff > 0) { | |
2301 | t = uv_to_utf8(tmpbuf,nextmin); | |
dfe13c55 | 2302 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2303 | if (diff > 1) { |
2304 | t = uv_to_utf8(tmpbuf, val - 1); | |
2305 | sv_catpvn(transv, "\377", 1); | |
dfe13c55 | 2306 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2307 | } |
2308 | } | |
2309 | if (*s == 0xff) | |
2310 | val = utf8_to_uv(s+1, &ulen); | |
2311 | if (val >= nextmin) | |
2312 | nextmin = val + 1; | |
2313 | } | |
2314 | t = uv_to_utf8(tmpbuf,nextmin); | |
dfe13c55 | 2315 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2316 | t = uv_to_utf8(tmpbuf, 0x7fffffff); |
2317 | sv_catpvn(transv, "\377", 1); | |
dfe13c55 GS |
2318 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
2319 | t = (U8*)SvPVX(transv); | |
a0ed51b3 LW |
2320 | tlen = SvCUR(transv); |
2321 | tend = t + tlen; | |
2322 | } | |
2323 | else if (!rlen && !del) { | |
2324 | r = t; rlen = tlen; rend = tend; | |
4757a243 LW |
2325 | } |
2326 | if (!squash) { | |
2327 | if (to_utf && from_utf) { /* only counting characters */ | |
2328 | if (t == r || (tlen == rlen && memEQ(t, r, tlen))) | |
2329 | o->op_private |= OPpTRANS_IDENTICAL; | |
2330 | } | |
2331 | else { /* straight latin-1 translation */ | |
2332 | if (tlen == 4 && memEQ(t, "\0\377\303\277", 4) && | |
2333 | rlen == 4 && memEQ(r, "\0\377\303\277", 4)) | |
2334 | o->op_private |= OPpTRANS_IDENTICAL; | |
2335 | } | |
a0ed51b3 LW |
2336 | } |
2337 | ||
2338 | while (t < tend || tfirst <= tlast) { | |
2339 | /* see if we need more "t" chars */ | |
2340 | if (tfirst > tlast) { | |
2341 | tfirst = (I32)utf8_to_uv(t, &ulen); | |
2342 | t += ulen; | |
2343 | if (t < tend && *t == 0xff) { /* illegal utf8 val indicates range */ | |
2344 | tlast = (I32)utf8_to_uv(++t, &ulen); | |
2345 | t += ulen; | |
2346 | } | |
2347 | else | |
2348 | tlast = tfirst; | |
2349 | } | |
2350 | ||
2351 | /* now see if we need more "r" chars */ | |
2352 | if (rfirst > rlast) { | |
2353 | if (r < rend) { | |
2354 | rfirst = (I32)utf8_to_uv(r, &ulen); | |
2355 | r += ulen; | |
2356 | if (r < rend && *r == 0xff) { /* illegal utf8 val indicates range */ | |
2357 | rlast = (I32)utf8_to_uv(++r, &ulen); | |
2358 | r += ulen; | |
2359 | } | |
2360 | else | |
2361 | rlast = rfirst; | |
2362 | } | |
2363 | else { | |
2364 | if (!havefinal++) | |
2365 | final = rlast; | |
2366 | rfirst = rlast = 0xffffffff; | |
2367 | } | |
2368 | } | |
2369 | ||
2370 | /* now see which range will peter our first, if either. */ | |
2371 | tdiff = tlast - tfirst; | |
2372 | rdiff = rlast - rfirst; | |
2373 | ||
2374 | if (tdiff <= rdiff) | |
2375 | diff = tdiff; | |
2376 | else | |
2377 | diff = rdiff; | |
2378 | ||
2379 | if (rfirst == 0xffffffff) { | |
2380 | diff = tdiff; /* oops, pretend rdiff is infinite */ | |
2381 | if (diff > 0) | |
cea2e8a9 | 2382 | Perl_sv_catpvf(aTHX_ listsv, "%04x\t%04x\tXXXX\n", tfirst, tlast); |
a0ed51b3 | 2383 | else |
cea2e8a9 | 2384 | Perl_sv_catpvf(aTHX_ listsv, "%04x\t\tXXXX\n", tfirst); |
a0ed51b3 LW |
2385 | } |
2386 | else { | |
2387 | if (diff > 0) | |
cea2e8a9 | 2388 | Perl_sv_catpvf(aTHX_ listsv, "%04x\t%04x\t%04x\n", tfirst, tfirst + diff, rfirst); |
a0ed51b3 | 2389 | else |
cea2e8a9 | 2390 | Perl_sv_catpvf(aTHX_ listsv, "%04x\t\t%04x\n", tfirst, rfirst); |
a0ed51b3 LW |
2391 | |
2392 | if (rfirst + diff > max) | |
2393 | max = rfirst + diff; | |
2394 | rfirst += diff + 1; | |
2395 | if (!grows) { | |
2396 | if (rfirst <= 0x80) | |
2397 | ; | |
2398 | else if (rfirst <= 0x800) | |
2399 | grows |= (tfirst < 0x80); | |
2400 | else if (rfirst <= 0x10000) | |
2401 | grows |= (tfirst < 0x800); | |
2402 | else if (rfirst <= 0x200000) | |
2403 | grows |= (tfirst < 0x10000); | |
2404 | else if (rfirst <= 0x4000000) | |
2405 | grows |= (tfirst < 0x200000); | |
2406 | else if (rfirst <= 0x80000000) | |
2407 | grows |= (tfirst < 0x4000000); | |
2408 | } | |
2409 | } | |
2410 | tfirst += diff + 1; | |
2411 | } | |
2412 | ||
2413 | none = ++max; | |
2414 | if (del) | |
2415 | del = ++max; | |
2416 | ||
2417 | if (max > 0xffff) | |
2418 | bits = 32; | |
2419 | else if (max > 0xff) | |
2420 | bits = 16; | |
2421 | else | |
2422 | bits = 8; | |
2423 | ||
2424 | cSVOPo->op_sv = (SV*)swash_init("utf8", "", listsv, bits, none); | |
2425 | SvREFCNT_dec(listsv); | |
2426 | if (transv) | |
2427 | SvREFCNT_dec(transv); | |
2428 | ||
2429 | if (!del && havefinal) | |
2430 | (void)hv_store((HV*)SvRV((cSVOPo->op_sv)), "FINAL", 5, newSViv((IV)final), 0); | |
2431 | ||
2432 | if (grows && to_utf) | |
2433 | o->op_private |= OPpTRANS_GROWS; | |
2434 | ||
2435 | op_free(expr); | |
2436 | op_free(repl); | |
2437 | return o; | |
2438 | } | |
2439 | ||
2440 | tbl = (short*)cPVOPo->op_pv; | |
79072805 LW |
2441 | if (complement) { |
2442 | Zero(tbl, 256, short); | |
2443 | for (i = 0; i < tlen; i++) | |
ec49126f | 2444 | tbl[t[i]] = -1; |
79072805 LW |
2445 | for (i = 0, j = 0; i < 256; i++) { |
2446 | if (!tbl[i]) { | |
2447 | if (j >= rlen) { | |
a0ed51b3 | 2448 | if (del) |
79072805 LW |
2449 | tbl[i] = -2; |
2450 | else if (rlen) | |
ec49126f | 2451 | tbl[i] = r[j-1]; |
79072805 LW |
2452 | else |
2453 | tbl[i] = i; | |
2454 | } | |
2455 | else | |
ec49126f | 2456 | tbl[i] = r[j++]; |
79072805 LW |
2457 | } |
2458 | } | |
2459 | } | |
2460 | else { | |
a0ed51b3 | 2461 | if (!rlen && !del) { |
79072805 | 2462 | r = t; rlen = tlen; |
5d06d08e | 2463 | if (!squash) |
4757a243 | 2464 | o->op_private |= OPpTRANS_IDENTICAL; |
79072805 LW |
2465 | } |
2466 | for (i = 0; i < 256; i++) | |
2467 | tbl[i] = -1; | |
2468 | for (i = 0, j = 0; i < tlen; i++,j++) { | |
2469 | if (j >= rlen) { | |
a0ed51b3 | 2470 | if (del) { |
ec49126f | 2471 | if (tbl[t[i]] == -1) |
2472 | tbl[t[i]] = -2; | |
79072805 LW |
2473 | continue; |
2474 | } | |
2475 | --j; | |
2476 | } | |
ec49126f | 2477 | if (tbl[t[i]] == -1) |
2478 | tbl[t[i]] = r[j]; | |
79072805 LW |
2479 | } |
2480 | } | |
2481 | op_free(expr); | |
2482 | op_free(repl); | |
2483 | ||
11343788 | 2484 | return o; |
79072805 LW |
2485 | } |
2486 | ||
2487 | OP * | |
864dbfa3 | 2488 | Perl_newPMOP(pTHX_ I32 type, I32 flags) |
79072805 | 2489 | { |
11343788 | 2490 | dTHR; |
79072805 LW |
2491 | PMOP *pmop; |
2492 | ||
b7dc083c | 2493 | NewOp(1101, pmop, 1, PMOP); |
79072805 | 2494 | pmop->op_type = type; |
22c35a8c | 2495 | pmop->op_ppaddr = PL_ppaddr[type]; |
79072805 | 2496 | pmop->op_flags = flags; |
c07a80fd | 2497 | pmop->op_private = 0 | (flags >> 8); |
79072805 | 2498 | |
3280af22 | 2499 | if (PL_hints & HINT_RE_TAINT) |
b3eb6a9b | 2500 | pmop->op_pmpermflags |= PMf_RETAINT; |
3280af22 | 2501 | if (PL_hints & HINT_LOCALE) |
b3eb6a9b GS |
2502 | pmop->op_pmpermflags |= PMf_LOCALE; |
2503 | pmop->op_pmflags = pmop->op_pmpermflags; | |
36477c24 | 2504 | |
79072805 | 2505 | /* link into pm list */ |
3280af22 NIS |
2506 | if (type != OP_TRANS && PL_curstash) { |
2507 | pmop->op_pmnext = HvPMROOT(PL_curstash); | |
2508 | HvPMROOT(PL_curstash) = pmop; | |
79072805 LW |
2509 | } |
2510 | ||
2511 | return (OP*)pmop; | |
2512 | } | |
2513 | ||
2514 | OP * | |
864dbfa3 | 2515 | Perl_pmruntime(pTHX_ OP *o, OP *expr, OP *repl) |
79072805 | 2516 | { |
5c0ca799 | 2517 | dTHR; |
79072805 LW |
2518 | PMOP *pm; |
2519 | LOGOP *rcop; | |
ce862d02 | 2520 | I32 repl_has_vars = 0; |
79072805 | 2521 | |
11343788 MB |
2522 | if (o->op_type == OP_TRANS) |
2523 | return pmtrans(o, expr, repl); | |
79072805 | 2524 | |
3280af22 | 2525 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 | 2526 | pm = (PMOP*)o; |
79072805 LW |
2527 | |
2528 | if (expr->op_type == OP_CONST) { | |
463ee0b2 | 2529 | STRLEN plen; |
79072805 | 2530 | SV *pat = ((SVOP*)expr)->op_sv; |
463ee0b2 | 2531 | char *p = SvPV(pat, plen); |
11343788 | 2532 | if ((o->op_flags & OPf_SPECIAL) && strEQ(p, " ")) { |
93a17b20 | 2533 | sv_setpvn(pat, "\\s+", 3); |
463ee0b2 | 2534 | p = SvPV(pat, plen); |
79072805 LW |
2535 | pm->op_pmflags |= PMf_SKIPWHITE; |
2536 | } | |
cea2e8a9 | 2537 | pm->op_pmregexp = CALLREGCOMP(aTHX_ p, p + plen, pm); |
aeea060c | 2538 | if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
85e6fe83 | 2539 | pm->op_pmflags |= PMf_WHITE; |
79072805 LW |
2540 | op_free(expr); |
2541 | } | |
2542 | else { | |
3280af22 NIS |
2543 | if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) |
2544 | expr = newUNOP((!(PL_hints & HINT_RE_EVAL) | |
2cd61cdb IZ |
2545 | ? OP_REGCRESET |
2546 | : OP_REGCMAYBE),0,expr); | |
463ee0b2 | 2547 | |
b7dc083c | 2548 | NewOp(1101, rcop, 1, LOGOP); |
79072805 | 2549 | rcop->op_type = OP_REGCOMP; |
22c35a8c | 2550 | rcop->op_ppaddr = PL_ppaddr[OP_REGCOMP]; |
79072805 | 2551 | rcop->op_first = scalar(expr); |
3280af22 | 2552 | rcop->op_flags |= ((PL_hints & HINT_RE_EVAL) |
2cd61cdb IZ |
2553 | ? (OPf_SPECIAL | OPf_KIDS) |
2554 | : OPf_KIDS); | |
79072805 | 2555 | rcop->op_private = 1; |
11343788 | 2556 | rcop->op_other = o; |
79072805 LW |
2557 | |
2558 | /* establish postfix order */ | |
3280af22 | 2559 | if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) { |
463ee0b2 LW |
2560 | LINKLIST(expr); |
2561 | rcop->op_next = expr; | |
2562 | ((UNOP*)expr)->op_first->op_next = (OP*)rcop; | |
2563 | } | |
2564 | else { | |
2565 | rcop->op_next = LINKLIST(expr); | |
2566 | expr->op_next = (OP*)rcop; | |
2567 | } | |
79072805 | 2568 | |
11343788 | 2569 | prepend_elem(o->op_type, scalar((OP*)rcop), o); |
79072805 LW |
2570 | } |
2571 | ||
2572 | if (repl) { | |
748a9306 | 2573 | OP *curop; |
0244c3a4 | 2574 | if (pm->op_pmflags & PMf_EVAL) { |
748a9306 | 2575 | curop = 0; |
0244c3a4 GS |
2576 | if (PL_curcop->cop_line < PL_multi_end) |
2577 | PL_curcop->cop_line = PL_multi_end; | |
2578 | } | |
554b3eca | 2579 | #ifdef USE_THREADS |
2faa37cc | 2580 | else if (repl->op_type == OP_THREADSV |
554b3eca | 2581 | && strchr("&`'123456789+", |
533c011a | 2582 | PL_threadsv_names[repl->op_targ])) |
554b3eca MB |
2583 | { |
2584 | curop = 0; | |
2585 | } | |
2586 | #endif /* USE_THREADS */ | |
748a9306 LW |
2587 | else if (repl->op_type == OP_CONST) |
2588 | curop = repl; | |
79072805 | 2589 | else { |
79072805 LW |
2590 | OP *lastop = 0; |
2591 | for (curop = LINKLIST(repl); curop!=repl; curop = LINKLIST(curop)) { | |
22c35a8c | 2592 | if (PL_opargs[curop->op_type] & OA_DANGEROUS) { |
554b3eca | 2593 | #ifdef USE_THREADS |
ce862d02 IZ |
2594 | if (curop->op_type == OP_THREADSV) { |
2595 | repl_has_vars = 1; | |
be949f6f | 2596 | if (strchr("&`'123456789+", curop->op_private)) |
ce862d02 | 2597 | break; |
554b3eca MB |
2598 | } |
2599 | #else | |
79072805 LW |
2600 | if (curop->op_type == OP_GV) { |
2601 | GV *gv = ((GVOP*)curop)->op_gv; | |
ce862d02 | 2602 | repl_has_vars = 1; |
93a17b20 | 2603 | if (strchr("&`'123456789+", *GvENAME(gv))) |
79072805 LW |
2604 | break; |
2605 | } | |
554b3eca | 2606 | #endif /* USE_THREADS */ |
79072805 LW |
2607 | else if (curop->op_type == OP_RV2CV) |
2608 | break; | |
2609 | else if (curop->op_type == OP_RV2SV || | |
2610 | curop->op_type == OP_RV2AV || | |
2611 | curop->op_type == OP_RV2HV || | |
2612 | curop->op_type == OP_RV2GV) { | |
2613 | if (lastop && lastop->op_type != OP_GV) /*funny deref?*/ | |
2614 | break; | |
2615 | } | |
748a9306 LW |
2616 | else if (curop->op_type == OP_PADSV || |
2617 | curop->op_type == OP_PADAV || | |
2618 | curop->op_type == OP_PADHV || | |
554b3eca | 2619 | curop->op_type == OP_PADANY) { |
ce862d02 | 2620 | repl_has_vars = 1; |
748a9306 | 2621 | } |
1167e5da SM |
2622 | else if (curop->op_type == OP_PUSHRE) |
2623 | ; /* Okay here, dangerous in newASSIGNOP */ | |
79072805 LW |
2624 | else |
2625 | break; | |
2626 | } | |
2627 | lastop = curop; | |
2628 | } | |
748a9306 | 2629 | } |
ce862d02 IZ |
2630 | if (curop == repl |
2631 | && !(repl_has_vars | |
2632 | && (!pm->op_pmregexp | |
2633 | || pm->op_pmregexp->reganch & ROPT_EVAL_SEEN))) { | |
748a9306 | 2634 | pm->op_pmflags |= PMf_CONST; /* const for long enough */ |
4633a7c4 | 2635 | pm->op_pmpermflags |= PMf_CONST; /* const for long enough */ |
11343788 | 2636 | prepend_elem(o->op_type, scalar(repl), o); |
748a9306 LW |
2637 | } |
2638 | else { | |
ce862d02 IZ |
2639 | if (curop == repl && !pm->op_pmregexp) { /* Has variables. */ |
2640 | pm->op_pmflags |= PMf_MAYBE_CONST; | |
2641 | pm->op_pmpermflags |= PMf_MAYBE_CONST; | |
2642 | } | |
b7dc083c | 2643 | NewOp(1101, rcop, 1, LOGOP); |
748a9306 | 2644 | rcop->op_type = OP_SUBSTCONT; |
22c35a8c | 2645 | rcop->op_ppaddr = PL_ppaddr[OP_SUBSTCONT]; |
748a9306 LW |
2646 | rcop->op_first = scalar(repl); |
2647 | rcop->op_flags |= OPf_KIDS; | |
2648 | rcop->op_private = 1; | |
11343788 | 2649 | rcop->op_other = o; |
748a9306 LW |
2650 | |
2651 | /* establish postfix order */ | |
2652 | rcop->op_next = LINKLIST(repl); | |
2653 | repl->op_next = (OP*)rcop; | |
2654 | ||
2655 | pm->op_pmreplroot = scalar((OP*)rcop); | |
2656 | pm->op_pmreplstart = LINKLIST(rcop); | |
2657 | rcop->op_next = 0; | |
79072805 LW |
2658 | } |
2659 | } | |
2660 | ||
2661 | return (OP*)pm; | |
2662 | } | |
2663 | ||
2664 | OP * | |
864dbfa3 | 2665 | Perl_newSVOP(pTHX_ I32 type, I32 flags, SV *sv) |
79072805 LW |
2666 | { |
2667 | SVOP *svop; | |
b7dc083c | 2668 | NewOp(1101, svop, 1, SVOP); |
79072805 | 2669 | svop->op_type = type; |
22c35a8c | 2670 | svop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2671 | svop->op_sv = sv; |
2672 | svop->op_next = (OP*)svop; | |
2673 | svop->op_flags = flags; | |
22c35a8c | 2674 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 2675 | scalar((OP*)svop); |
22c35a8c | 2676 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 2677 | svop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 2678 | return CHECKOP(type, svop); |
79072805 LW |
2679 | } |
2680 | ||
2681 | OP * | |
864dbfa3 | 2682 | Perl_newGVOP(pTHX_ I32 type, I32 flags, GV *gv) |
79072805 | 2683 | { |
11343788 | 2684 | dTHR; |
79072805 | 2685 | GVOP *gvop; |
b7dc083c | 2686 | NewOp(1101, gvop, 1, GVOP); |
79072805 | 2687 | gvop->op_type = type; |
22c35a8c | 2688 | gvop->op_ppaddr = PL_ppaddr[type]; |
8990e307 | 2689 | gvop->op_gv = (GV*)SvREFCNT_inc(gv); |
79072805 LW |
2690 | gvop->op_next = (OP*)gvop; |
2691 | gvop->op_flags = flags; | |
22c35a8c | 2692 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 2693 | scalar((OP*)gvop); |
22c35a8c | 2694 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 2695 | gvop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 2696 | return CHECKOP(type, gvop); |
79072805 LW |
2697 | } |
2698 | ||
2699 | OP * | |
864dbfa3 | 2700 | Perl_newPVOP(pTHX_ I32 type, I32 flags, char *pv) |
79072805 LW |
2701 | { |
2702 | PVOP *pvop; | |
b7dc083c | 2703 | NewOp(1101, pvop, 1, PVOP); |
79072805 | 2704 | pvop->op_type = type; |
22c35a8c | 2705 | pvop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2706 | pvop->op_pv = pv; |
2707 | pvop->op_next = (OP*)pvop; | |
2708 | pvop->op_flags = flags; | |
22c35a8c | 2709 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 2710 | scalar((OP*)pvop); |
22c35a8c | 2711 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 2712 | pvop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 2713 | return CHECKOP(type, pvop); |
79072805 LW |
2714 | } |
2715 | ||
79072805 | 2716 | void |
864dbfa3 | 2717 | Perl_package(pTHX_ OP *o) |
79072805 | 2718 | { |
11343788 | 2719 | dTHR; |
93a17b20 | 2720 | SV *sv; |
79072805 | 2721 | |
3280af22 NIS |
2722 | save_hptr(&PL_curstash); |
2723 | save_item(PL_curstname); | |
11343788 | 2724 | if (o) { |
463ee0b2 LW |
2725 | STRLEN len; |
2726 | char *name; | |
11343788 | 2727 | sv = cSVOPo->op_sv; |
463ee0b2 | 2728 | name = SvPV(sv, len); |
3280af22 NIS |
2729 | PL_curstash = gv_stashpvn(name,len,TRUE); |
2730 | sv_setpvn(PL_curstname, name, len); | |
11343788 | 2731 | op_free(o); |
93a17b20 LW |
2732 | } |
2733 | else { | |
3280af22 NIS |
2734 | sv_setpv(PL_curstname,"<none>"); |
2735 | PL_curstash = Nullhv; | |
93a17b20 | 2736 | } |
7ad382f4 | 2737 | PL_hints |= HINT_BLOCK_SCOPE; |
3280af22 NIS |
2738 | PL_copline = NOLINE; |
2739 | PL_expect = XSTATE; | |
79072805 LW |
2740 | } |
2741 | ||
85e6fe83 | 2742 | void |
864dbfa3 | 2743 | Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *id, OP *arg) |
85e6fe83 | 2744 | { |
a0d0e21e LW |
2745 | OP *pack; |
2746 | OP *meth; | |
2747 | OP *rqop; | |
2748 | OP *imop; | |
b1cb66bf | 2749 | OP *veop; |
78ca652e | 2750 | GV *gv; |
85e6fe83 | 2751 | |
a0d0e21e | 2752 | if (id->op_type != OP_CONST) |
cea2e8a9 | 2753 | Perl_croak(aTHX_ "Module name must be constant"); |
85e6fe83 | 2754 | |
b1cb66bf | 2755 | veop = Nullop; |
2756 | ||
2757 | if(version != Nullop) { | |
2758 | SV *vesv = ((SVOP*)version)->op_sv; | |
2759 | ||
2760 | if (arg == Nullop && !SvNIOK(vesv)) { | |
2761 | arg = version; | |
2762 | } | |
2763 | else { | |
2764 | OP *pack; | |
b1cb66bf | 2765 | |
2766 | if (version->op_type != OP_CONST || !SvNIOK(vesv)) | |
cea2e8a9 | 2767 | Perl_croak(aTHX_ "Version number must be constant number"); |
b1cb66bf | 2768 | |
2769 | /* Make copy of id so we don't free it twice */ | |
2770 | pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv)); | |
2771 | ||
2772 | /* Fake up a method call to VERSION */ | |
b1cb66bf | 2773 | veop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, |
2774 | append_elem(OP_LIST, | |
2775 | prepend_elem(OP_LIST, pack, list(version)), | |
f5d5a27c CS |
2776 | newSVOP(OP_METHOD_NAMED, 0, |
2777 | newSVpvn("VERSION", 7)))); | |
b1cb66bf | 2778 | } |
2779 | } | |
aeea060c | 2780 | |
a0d0e21e | 2781 | /* Fake up an import/unimport */ |
4633a7c4 LW |
2782 | if (arg && arg->op_type == OP_STUB) |
2783 | imop = arg; /* no import on explicit () */ | |
b1cb66bf | 2784 | else if(SvNIOK(((SVOP*)id)->op_sv)) { |
2785 | imop = Nullop; /* use 5.0; */ | |
2786 | } | |
4633a7c4 LW |
2787 | else { |
2788 | /* Make copy of id so we don't free it twice */ | |
2789 | pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv)); | |
4633a7c4 | 2790 | imop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, |
a0d0e21e LW |
2791 | append_elem(OP_LIST, |
2792 | prepend_elem(OP_LIST, pack, list(arg)), | |
f5d5a27c CS |
2793 | newSVOP(OP_METHOD_NAMED, 0, |
2794 | aver ? newSVpvn("import", 6) | |
2795 | : newSVpvn("unimport", 8)))); | |
4633a7c4 LW |
2796 | } |
2797 | ||
78ca652e GS |
2798 | /* Fake up a require, handle override, if any */ |
2799 | gv = gv_fetchpv("require", FALSE, SVt_PVCV); | |
2800 | if (!(gv && GvIMPORTED_CV(gv))) | |
2801 | gv = gv_fetchpv("CORE::GLOBAL::require", FALSE, SVt_PVCV); | |
2802 | ||
2803 | if (gv && GvIMPORTED_CV(gv)) { | |
2804 | rqop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2805 | append_elem(OP_LIST, id, | |
2806 | scalar(newUNOP(OP_RV2CV, 0, | |
2807 | newGVOP(OP_GV, 0, | |
2808 | gv)))))); | |
2809 | } | |
2810 | else { | |
2811 | rqop = newUNOP(OP_REQUIRE, 0, id); | |
2812 | } | |
a0d0e21e LW |
2813 | |
2814 | /* Fake up the BEGIN {}, which does its thing immediately. */ | |
c07a80fd | 2815 | newSUB(floor, |
79cb57f6 | 2816 | newSVOP(OP_CONST, 0, newSVpvn("BEGIN", 5)), |
4633a7c4 | 2817 | Nullop, |
a0d0e21e | 2818 | append_elem(OP_LINESEQ, |
b1cb66bf | 2819 | append_elem(OP_LINESEQ, |
2820 | newSTATEOP(0, Nullch, rqop), | |
2821 | newSTATEOP(0, Nullch, veop)), | |
a0d0e21e | 2822 | newSTATEOP(0, Nullch, imop) )); |
85e6fe83 | 2823 | |
3280af22 NIS |
2824 | PL_copline = NOLINE; |
2825 | PL_expect = XSTATE; | |
85e6fe83 LW |
2826 | } |
2827 | ||
79072805 | 2828 | OP * |
864dbfa3 | 2829 | Perl_dofile(pTHX_ OP *term) |
78ca652e GS |
2830 | { |
2831 | OP *doop; | |
2832 | GV *gv; | |
2833 | ||
2834 | gv = gv_fetchpv("do", FALSE, SVt_PVCV); | |
2835 | if (!(gv && GvIMPORTED_CV(gv))) | |
2836 | gv = gv_fetchpv("CORE::GLOBAL::do", FALSE, SVt_PVCV); | |
2837 | ||
2838 | if (gv && GvIMPORTED_CV(gv)) { | |
2839 | doop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2840 | append_elem(OP_LIST, term, | |
2841 | scalar(newUNOP(OP_RV2CV, 0, | |
2842 | newGVOP(OP_GV, 0, | |
2843 | gv)))))); | |
2844 | } | |
2845 | else { | |
2846 | doop = newUNOP(OP_DOFILE, 0, scalar(term)); | |
2847 | } | |
2848 | return doop; | |
2849 | } | |
2850 | ||
2851 | OP * | |
864dbfa3 | 2852 | Perl_newSLICEOP(pTHX_ I32 flags, OP *subscript, OP *listval) |
79072805 LW |
2853 | { |
2854 | return newBINOP(OP_LSLICE, flags, | |
8990e307 LW |
2855 | list(force_list(subscript)), |
2856 | list(force_list(listval)) ); | |
79072805 LW |
2857 | } |
2858 | ||
76e3520e | 2859 | STATIC I32 |
cea2e8a9 | 2860 | S_list_assignment(pTHX_ register OP *o) |
79072805 | 2861 | { |
11343788 | 2862 | if (!o) |
79072805 LW |
2863 | return TRUE; |
2864 | ||
11343788 MB |
2865 | if (o->op_type == OP_NULL && o->op_flags & OPf_KIDS) |
2866 | o = cUNOPo->op_first; | |
79072805 | 2867 | |
11343788 | 2868 | if (o->op_type == OP_COND_EXPR) { |
1a67a97c SM |
2869 | I32 t = list_assignment(cLOGOPo->op_first->op_sibling); |
2870 | I32 f = list_assignment(cLOGOPo->op_first->op_sibling->op_sibling); | |
79072805 LW |
2871 | |
2872 | if (t && f) | |
2873 | return TRUE; | |
2874 | if (t || f) | |
2875 | yyerror("Assignment to both a list and a scalar"); | |
2876 | return FALSE; | |
2877 | } | |
2878 | ||
11343788 MB |
2879 | if (o->op_type == OP_LIST || o->op_flags & OPf_PARENS || |
2880 | o->op_type == OP_RV2AV || o->op_type == OP_RV2HV || | |
2881 | o->op_type == OP_ASLICE || o->op_type == OP_HSLICE) | |
79072805 LW |
2882 | return TRUE; |
2883 | ||
11343788 | 2884 | if (o->op_type == OP_PADAV || o->op_type == OP_PADHV) |
93a17b20 LW |
2885 | return TRUE; |
2886 | ||
11343788 | 2887 | if (o->op_type == OP_RV2SV) |
79072805 LW |
2888 | return FALSE; |
2889 | ||
2890 | return FALSE; | |
2891 | } | |
2892 | ||
2893 | OP * | |
864dbfa3 | 2894 | Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) |
79072805 | 2895 | { |
11343788 | 2896 | OP *o; |
79072805 | 2897 | |
a0d0e21e LW |
2898 | if (optype) { |
2899 | if (optype == OP_ANDASSIGN || optype == OP_ORASSIGN) { | |
2900 | return newLOGOP(optype, 0, | |
2901 | mod(scalar(left), optype), | |
2902 | newUNOP(OP_SASSIGN, 0, scalar(right))); | |
2903 | } | |
2904 | else { | |
2905 | return newBINOP(optype, OPf_STACKED, | |
2906 | mod(scalar(left), optype), scalar(right)); | |
2907 | } | |
2908 | } | |
2909 | ||
79072805 | 2910 | if (list_assignment(left)) { |
6ee623d5 | 2911 | dTHR; |
3280af22 NIS |
2912 | PL_modcount = 0; |
2913 | PL_eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/ | |
463ee0b2 | 2914 | left = mod(left, OP_AASSIGN); |
3280af22 NIS |
2915 | if (PL_eval_start) |
2916 | PL_eval_start = 0; | |
748a9306 | 2917 | else { |
a0d0e21e LW |
2918 | op_free(left); |
2919 | op_free(right); | |
2920 | return Nullop; | |
2921 | } | |
11343788 | 2922 | o = newBINOP(OP_AASSIGN, flags, |
8990e307 LW |
2923 | list(force_list(right)), |
2924 | list(force_list(left)) ); | |
11343788 | 2925 | o->op_private = 0 | (flags >> 8); |
a0d0e21e | 2926 | if (!(left->op_private & OPpLVAL_INTRO)) { |
79072805 | 2927 | OP *curop; |
11343788 | 2928 | OP *lastop = o; |
3280af22 | 2929 | PL_generation++; |
11343788 | 2930 | for (curop = LINKLIST(o); curop != o; curop = LINKLIST(curop)) { |
22c35a8c | 2931 | if (PL_opargs[curop->op_type] & OA_DANGEROUS) { |
79072805 LW |
2932 | if (curop->op_type == OP_GV) { |
2933 | GV *gv = ((GVOP*)curop)->op_gv; | |
3280af22 | 2934 | if (gv == PL_defgv || SvCUR(gv) == PL_generation) |
79072805 | 2935 | break; |
3280af22 | 2936 | SvCUR(gv) = PL_generation; |
79072805 | 2937 | } |
748a9306 LW |
2938 | else if (curop->op_type == OP_PADSV || |
2939 | curop->op_type == OP_PADAV || | |
2940 | curop->op_type == OP_PADHV || | |
2941 | curop->op_type == OP_PADANY) { | |
3280af22 | 2942 | SV **svp = AvARRAY(PL_comppad_name); |
8e07c86e | 2943 | SV *sv = svp[curop->op_targ]; |
3280af22 | 2944 | if (SvCUR(sv) == PL_generation) |
748a9306 | 2945 | break; |
3280af22 | 2946 | SvCUR(sv) = PL_generation; /* (SvCUR not used any more) */ |
748a9306 | 2947 | } |
79072805 LW |
2948 | else if (curop->op_type == OP_RV2CV) |
2949 | break; | |
2950 | else if (curop->op_type == OP_RV2SV || | |
2951 | curop->op_type == OP_RV2AV || | |
2952 | curop->op_type == OP_RV2HV || | |
2953 | curop->op_type == OP_RV2GV) { | |
2954 | if (lastop->op_type != OP_GV) /* funny deref? */ | |
2955 | break; | |
2956 | } | |
1167e5da SM |
2957 | else if (curop->op_type == OP_PUSHRE) { |
2958 | if (((PMOP*)curop)->op_pmreplroot) { | |
2959 | GV *gv = (GV*)((PMOP*)curop)->op_pmreplroot; | |
3280af22 | 2960 | if (gv == PL_defgv || SvCUR(gv) == PL_generation) |
1167e5da | 2961 | break; |
3280af22 | 2962 | SvCUR(gv) = PL_generation; |
1167e5da SM |
2963 | } |
2964 | } | |
79072805 LW |
2965 | else |
2966 | break; | |
2967 | } | |
2968 | lastop = curop; | |
2969 | } | |
11343788 MB |
2970 | if (curop != o) |
2971 | o->op_private = OPpASSIGN_COMMON; | |
79072805 | 2972 | } |
c07a80fd | 2973 | if (right && right->op_type == OP_SPLIT) { |
2974 | OP* tmpop; | |
2975 | if ((tmpop = ((LISTOP*)right)->op_first) && | |
2976 | tmpop->op_type == OP_PUSHRE) | |
2977 | { | |
2978 | PMOP *pm = (PMOP*)tmpop; | |
2979 | if (left->op_type == OP_RV2AV && | |
2980 | !(left->op_private & OPpLVAL_INTRO) && | |
11343788 | 2981 | !(o->op_private & OPpASSIGN_COMMON) ) |
c07a80fd | 2982 | { |
2983 | tmpop = ((UNOP*)left)->op_first; | |
2984 | if (tmpop->op_type == OP_GV && !pm->op_pmreplroot) { | |
2985 | pm->op_pmreplroot = (OP*)((GVOP*)tmpop)->op_gv; | |
2986 | pm->op_pmflags |= PMf_ONCE; | |
11343788 | 2987 | tmpop = cUNOPo->op_first; /* to list (nulled) */ |
c07a80fd | 2988 | tmpop = ((UNOP*)tmpop)->op_first; /* to pushmark */ |
2989 | tmpop->op_sibling = Nullop; /* don't free split */ | |
2990 | right->op_next = tmpop->op_next; /* fix starting loc */ | |
11343788 | 2991 | op_free(o); /* blow off assign */ |
54310121 | 2992 | right->op_flags &= ~OPf_WANT; |
a5f75d66 | 2993 | /* "I don't know and I don't care." */ |
c07a80fd | 2994 | return right; |
2995 | } | |
2996 | } | |
2997 | else { | |
3280af22 | 2998 | if (PL_modcount < 10000 && |
c07a80fd | 2999 | ((LISTOP*)right)->op_last->op_type == OP_CONST) |
3000 | { | |
3001 | SV *sv = ((SVOP*)((LISTOP*)right)->op_last)->op_sv; | |
3002 | if (SvIVX(sv) == 0) | |
3280af22 | 3003 | sv_setiv(sv, PL_modcount+1); |
c07a80fd | 3004 | } |
3005 | } | |
3006 | } | |
3007 | } | |
11343788 | 3008 | return o; |
79072805 LW |
3009 | } |
3010 | if (!right) | |
3011 | right = newOP(OP_UNDEF, 0); | |
3012 | if (right->op_type == OP_READLINE) { | |
3013 | right->op_flags |= OPf_STACKED; | |
463ee0b2 | 3014 | return newBINOP(OP_NULL, flags, mod(scalar(left), OP_SASSIGN), scalar(right)); |
79072805 | 3015 | } |
a0d0e21e | 3016 | else { |
3280af22 | 3017 | PL_eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/ |
11343788 | 3018 | o = newBINOP(OP_SASSIGN, flags, |
463ee0b2 | 3019 | scalar(right), mod(scalar(left), OP_SASSIGN) ); |
3280af22 NIS |
3020 | if (PL_eval_start) |
3021 | PL_eval_start = 0; | |
748a9306 | 3022 | else { |
11343788 | 3023 | op_free(o); |
a0d0e21e LW |
3024 | return Nullop; |
3025 | } | |
3026 | } | |
11343788 | 3027 | return o; |
79072805 LW |
3028 | } |
3029 | ||
3030 | OP * | |
864dbfa3 | 3031 | Perl_newSTATEOP(pTHX_ I32 flags, char *label, OP *o) |
79072805 | 3032 | { |
11343788 | 3033 | dTHR; |
bbce6d69 | 3034 | U32 seq = intro_my(); |
79072805 LW |
3035 | register COP *cop; |
3036 | ||
b7dc083c | 3037 | NewOp(1101, cop, 1, COP); |
3280af22 | 3038 | if (PERLDB_LINE && PL_curcop->cop_line && PL_curstash != PL_debstash) { |
8990e307 | 3039 | cop->op_type = OP_DBSTATE; |
22c35a8c | 3040 | cop->op_ppaddr = PL_ppaddr[ OP_DBSTATE ]; |
8990e307 LW |
3041 | } |
3042 | else { | |
3043 | cop->op_type = OP_NEXTSTATE; | |
22c35a8c | 3044 | cop->op_ppaddr = PL_ppaddr[ OP_NEXTSTATE ]; |
8990e307 | 3045 | } |
79072805 | 3046 | cop->op_flags = flags; |
a0ed51b3 | 3047 | cop->op_private = (PL_hints & HINT_UTF8); |
ff0cee69 | 3048 | #ifdef NATIVE_HINTS |
3049 | cop->op_private |= NATIVE_HINTS; | |
3050 | #endif | |
e24b16f9 | 3051 | PL_compiling.op_private = cop->op_private; |
79072805 LW |
3052 | cop->op_next = (OP*)cop; |
3053 | ||
463ee0b2 LW |
3054 | if (label) { |
3055 | cop->cop_label = label; | |
3280af22 | 3056 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 3057 | } |
bbce6d69 | 3058 | cop->cop_seq = seq; |
3280af22 | 3059 | cop->cop_arybase = PL_curcop->cop_arybase; |
0453d815 | 3060 | if (specialWARN(PL_curcop->cop_warnings)) |
599cee73 PM |
3061 | cop->cop_warnings = PL_curcop->cop_warnings ; |
3062 | else | |
3063 | cop->cop_warnings = newSVsv(PL_curcop->cop_warnings) ; | |
3064 | ||
79072805 | 3065 | |
3280af22 NIS |
3066 | if (PL_copline == NOLINE) |
3067 | cop->cop_line = PL_curcop->cop_line; | |
79072805 | 3068 | else { |
3280af22 NIS |
3069 | cop->cop_line = PL_copline; |
3070 | PL_copline = NOLINE; | |
79072805 | 3071 | } |
3280af22 NIS |
3072 | cop->cop_filegv = (GV*)SvREFCNT_inc(PL_curcop->cop_filegv); |
3073 | cop->cop_stash = PL_curstash; | |
79072805 | 3074 | |
3280af22 NIS |
3075 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
3076 | SV **svp = av_fetch(GvAV(PL_curcop->cop_filegv),(I32)cop->cop_line, FALSE); | |
3077 | if (svp && *svp != &PL_sv_undef && !SvIOK(*svp)) { | |
a0d0e21e | 3078 | (void)SvIOK_on(*svp); |
a5f75d66 | 3079 | SvIVX(*svp) = 1; |
93a17b20 LW |
3080 | SvSTASH(*svp) = (HV*)cop; |
3081 | } | |
3082 | } | |
3083 | ||
11343788 | 3084 | return prepend_elem(OP_LINESEQ, (OP*)cop, o); |
79072805 LW |
3085 | } |
3086 | ||
bbce6d69 | 3087 | /* "Introduce" my variables to visible status. */ |
3088 | U32 | |
864dbfa3 | 3089 | Perl_intro_my(pTHX) |
bbce6d69 | 3090 | { |
3091 | SV **svp; | |
3092 | SV *sv; | |
3093 | I32 i; | |
3094 | ||
3280af22 NIS |
3095 | if (! PL_min_intro_pending) |
3096 | return PL_cop_seqmax; | |
bbce6d69 | 3097 | |
3280af22 NIS |
3098 | svp = AvARRAY(PL_comppad_name); |
3099 | for (i = PL_min_intro_pending; i <= PL_max_intro_pending; i++) { | |
3100 | if ((sv = svp[i]) && sv != &PL_sv_undef && !SvIVX(sv)) { | |
c53d7c7d | 3101 | SvIVX(sv) = PAD_MAX; /* Don't know scope end yet. */ |
65202027 | 3102 | SvNVX(sv) = (NV)PL_cop_seqmax; |
bbce6d69 | 3103 | } |
3104 | } | |
3280af22 NIS |
3105 | PL_min_intro_pending = 0; |
3106 | PL_comppad_name_fill = PL_max_intro_pending; /* Needn't search higher */ | |
3107 | return PL_cop_seqmax++; | |
bbce6d69 | 3108 | } |
3109 | ||
79072805 | 3110 | OP * |
864dbfa3 | 3111 | Perl_newLOGOP(pTHX_ I32 type, I32 flags, OP *first, OP *other) |
79072805 | 3112 | { |
883ffac3 CS |
3113 | return new_logop(type, flags, &first, &other); |
3114 | } | |
3115 | ||
3bd495df | 3116 | STATIC OP * |
cea2e8a9 | 3117 | S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp) |
883ffac3 | 3118 | { |
11343788 | 3119 | dTHR; |
79072805 | 3120 | LOGOP *logop; |
11343788 | 3121 | OP *o; |
883ffac3 CS |
3122 | OP *first = *firstp; |
3123 | OP *other = *otherp; | |
79072805 | 3124 | |
a0d0e21e LW |
3125 | if (type == OP_XOR) /* Not short circuit, but here by precedence. */ |
3126 | return newBINOP(type, flags, scalar(first), scalar(other)); | |
3127 | ||
8990e307 | 3128 | scalarboolean(first); |
79072805 LW |
3129 | /* optimize "!a && b" to "a || b", and "!a || b" to "a && b" */ |
3130 | if (first->op_type == OP_NOT && (first->op_flags & OPf_SPECIAL)) { | |
3131 | if (type == OP_AND || type == OP_OR) { | |
3132 | if (type == OP_AND) | |
3133 | type = OP_OR; | |
3134 | else | |
3135 | type = OP_AND; | |
11343788 | 3136 | o = first; |
883ffac3 | 3137 | first = *firstp = cUNOPo->op_first; |
11343788 MB |
3138 | if (o->op_next) |
3139 | first->op_next = o->op_next; | |
3140 | cUNOPo->op_first = Nullop; | |
3141 | op_free(o); | |
79072805 LW |
3142 | } |
3143 | } | |
3144 | if (first->op_type == OP_CONST) { | |
599cee73 | 3145 | if (ckWARN(WARN_PRECEDENCE) && (first->op_private & OPpCONST_BARE)) |
cea2e8a9 | 3146 | Perl_warner(aTHX_ WARN_PRECEDENCE, "Probable precedence problem on %s", |
22c35a8c | 3147 | PL_op_desc[type]); |
79072805 LW |
3148 | if ((type == OP_AND) == (SvTRUE(((SVOP*)first)->op_sv))) { |
3149 | op_free(first); | |
883ffac3 | 3150 | *firstp = Nullop; |
79072805 LW |
3151 | return other; |
3152 | } | |
3153 | else { | |
3154 | op_free(other); | |
883ffac3 | 3155 | *otherp = Nullop; |
79072805 LW |
3156 | return first; |
3157 | } | |
3158 | } | |
3159 | else if (first->op_type == OP_WANTARRAY) { | |
3160 | if (type == OP_AND) | |
3161 | list(other); | |
3162 | else | |
3163 | scalar(other); | |
3164 | } | |
599cee73 | 3165 | else if (ckWARN(WARN_UNSAFE) && (first->op_flags & OPf_KIDS)) { |
a6006777 | 3166 | OP *k1 = ((UNOP*)first)->op_first; |
3167 | OP *k2 = k1->op_sibling; | |
3168 | OPCODE warnop = 0; | |
3169 | switch (first->op_type) | |
3170 | { | |
3171 | case OP_NULL: | |
3172 | if (k2 && k2->op_type == OP_READLINE | |
3173 | && (k2->op_flags & OPf_STACKED) | |
55d729e4 | 3174 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) |
a6006777 | 3175 | warnop = k2->op_type; |
3176 | break; | |
3177 | ||
3178 | case OP_SASSIGN: | |
68dc0745 | 3179 | if (k1->op_type == OP_READDIR |
3180 | || k1->op_type == OP_GLOB | |
3181 | || k1->op_type == OP_EACH) | |
a6006777 | 3182 | warnop = k1->op_type; |
3183 | break; | |
3184 | } | |
8ebc5c01 | 3185 | if (warnop) { |
3280af22 NIS |
3186 | line_t oldline = PL_curcop->cop_line; |
3187 | PL_curcop->cop_line = PL_copline; | |
cea2e8a9 | 3188 | Perl_warner(aTHX_ WARN_UNSAFE, |
599cee73 | 3189 | "Value of %s%s can be \"0\"; test with defined()", |
22c35a8c | 3190 | PL_op_desc[warnop], |
68dc0745 | 3191 | ((warnop == OP_READLINE || warnop == OP_GLOB) |
3192 | ? " construct" : "() operator")); | |
3280af22 | 3193 | PL_curcop->cop_line = oldline; |
8ebc5c01 | 3194 | } |
a6006777 | 3195 | } |
79072805 LW |
3196 | |
3197 | if (!other) | |
3198 | return first; | |
3199 | ||
a0d0e21e LW |
3200 | if (type == OP_ANDASSIGN || type == OP_ORASSIGN) |
3201 | other->op_private |= OPpASSIGN_BACKWARDS; /* other is an OP_SASSIGN */ | |
3202 | ||
b7dc083c | 3203 | NewOp(1101, logop, 1, LOGOP); |
79072805 LW |
3204 | |
3205 | logop->op_type = type; | |
22c35a8c | 3206 | logop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
3207 | logop->op_first = first; |
3208 | logop->op_flags = flags | OPf_KIDS; | |
3209 | logop->op_other = LINKLIST(other); | |
c07a80fd | 3210 | logop->op_private = 1 | (flags >> 8); |
79072805 LW |
3211 | |
3212 | /* establish postfix order */ | |
3213 | logop->op_next = LINKLIST(first); | |
3214 | first->op_next = (OP*)logop; | |
3215 | first->op_sibling = other; | |
3216 | ||
11343788 MB |
3217 | o = newUNOP(OP_NULL, 0, (OP*)logop); |
3218 | other->op_next = o; | |
79072805 | 3219 | |
11343788 | 3220 | return o; |
79072805 LW |
3221 | } |
3222 | ||
3223 | OP * | |
864dbfa3 | 3224 | Perl_newCONDOP(pTHX_ I32 flags, OP *first, OP *trueop, OP *falseop) |
79072805 | 3225 | { |
11343788 | 3226 | dTHR; |
1a67a97c SM |
3227 | LOGOP *logop; |
3228 | OP *start; | |
11343788 | 3229 | OP *o; |
79072805 | 3230 | |
b1cb66bf | 3231 | if (!falseop) |
3232 | return newLOGOP(OP_AND, 0, first, trueop); | |
3233 | if (!trueop) | |
3234 | return newLOGOP(OP_OR, 0, first, falseop); | |
79072805 | 3235 | |
8990e307 | 3236 | scalarboolean(first); |
79072805 LW |
3237 | if (first->op_type == OP_CONST) { |
3238 | if (SvTRUE(((SVOP*)first)->op_sv)) { | |
3239 | op_free(first); | |
b1cb66bf | 3240 | op_free(falseop); |
3241 | return trueop; | |
79072805 LW |
3242 | } |
3243 | else { | |
3244 | op_free(first); | |
b1cb66bf | 3245 | op_free(trueop); |
3246 | return falseop; | |
79072805 LW |
3247 | } |
3248 | } | |
3249 | else if (first->op_type == OP_WANTARRAY) { | |
b1cb66bf | 3250 | list(trueop); |
3251 | scalar(falseop); | |
79072805 | 3252 | } |
1a67a97c SM |
3253 | NewOp(1101, logop, 1, LOGOP); |
3254 | logop->op_type = OP_COND_EXPR; | |
3255 | logop->op_ppaddr = PL_ppaddr[OP_COND_EXPR]; | |
3256 | logop->op_first = first; | |
3257 | logop->op_flags = flags | OPf_KIDS; | |
3258 | logop->op_private = 1 | (flags >> 8); | |
3259 | logop->op_other = LINKLIST(trueop); | |
3260 | logop->op_next = LINKLIST(falseop); | |
79072805 | 3261 | |
79072805 LW |
3262 | |
3263 | /* establish postfix order */ | |
1a67a97c SM |
3264 | start = LINKLIST(first); |
3265 | first->op_next = (OP*)logop; | |
79072805 | 3266 | |
b1cb66bf | 3267 | first->op_sibling = trueop; |
3268 | trueop->op_sibling = falseop; | |
1a67a97c | 3269 | o = newUNOP(OP_NULL, 0, (OP*)logop); |
79072805 | 3270 | |
1a67a97c | 3271 | trueop->op_next = falseop->op_next = o; |
79072805 | 3272 | |
1a67a97c | 3273 | o->op_next = start; |
11343788 | 3274 | return o; |
79072805 LW |
3275 | } |
3276 | ||
3277 | OP * | |
864dbfa3 | 3278 | Perl_newRANGE(pTHX_ I32 flags, OP *left, OP *right) |
79072805 | 3279 | { |
b35b2403 | 3280 | dTHR; |
1a67a97c | 3281 | LOGOP *range; |
79072805 LW |
3282 | OP *flip; |
3283 | OP *flop; | |
1a67a97c | 3284 | OP *leftstart; |
11343788 | 3285 | OP *o; |
79072805 | 3286 | |
1a67a97c | 3287 | NewOp(1101, range, 1, LOGOP); |
79072805 | 3288 | |
1a67a97c SM |
3289 | range->op_type = OP_RANGE; |
3290 | range->op_ppaddr = PL_ppaddr[OP_RANGE]; | |
3291 | range->op_first = left; | |
3292 | range->op_flags = OPf_KIDS; | |
3293 | leftstart = LINKLIST(left); | |
3294 | range->op_other = LINKLIST(right); | |
3295 | range->op_private = 1 | (flags >> 8); | |
79072805 LW |
3296 | |
3297 | left->op_sibling = right; | |
3298 | ||
1a67a97c SM |
3299 | range->op_next = (OP*)range; |
3300 | flip = newUNOP(OP_FLIP, flags, (OP*)range); | |
79072805 | 3301 | flop = newUNOP(OP_FLOP, 0, flip); |
11343788 | 3302 | o = newUNOP(OP_NULL, 0, flop); |
79072805 | 3303 | linklist(flop); |
1a67a97c | 3304 | range->op_next = leftstart; |
79072805 LW |
3305 | |
3306 | left->op_next = flip; | |
3307 | right->op_next = flop; | |
3308 | ||
1a67a97c SM |
3309 | range->op_targ = pad_alloc(OP_RANGE, SVs_PADMY); |
3310 | sv_upgrade(PAD_SV(range->op_targ), SVt_PVNV); | |
ed6116ce | 3311 | flip->op_targ = pad_alloc(OP_RANGE, SVs_PADMY); |
79072805 LW |
3312 | sv_upgrade(PAD_SV(flip->op_targ), SVt_PVNV); |
3313 | ||
3314 | flip->op_private = left->op_type == OP_CONST ? OPpFLIP_LINENUM : 0; | |
3315 | flop->op_private = right->op_type == OP_CONST ? OPpFLIP_LINENUM : 0; | |
3316 | ||
11343788 | 3317 | flip->op_next = o; |
79072805 | 3318 | if (!flip->op_private || !flop->op_private) |
11343788 | 3319 | linklist(o); /* blow off optimizer unless constant */ |
79072805 | 3320 | |
11343788 | 3321 | return o; |
79072805 LW |
3322 | } |
3323 | ||
3324 | OP * | |
864dbfa3 | 3325 | Perl_newLOOPOP(pTHX_ I32 flags, I32 debuggable, OP *expr, OP *block) |
79072805 | 3326 | { |
11343788 | 3327 | dTHR; |
463ee0b2 | 3328 | OP* listop; |
11343788 | 3329 | OP* o; |
463ee0b2 | 3330 | int once = block && block->op_flags & OPf_SPECIAL && |
a0d0e21e | 3331 | (block->op_type == OP_ENTERSUB || block->op_type == OP_NULL); |
93a17b20 | 3332 | |
463ee0b2 LW |
3333 | if (expr) { |
3334 | if (once && expr->op_type == OP_CONST && !SvTRUE(((SVOP*)expr)->op_sv)) | |
3335 | return block; /* do {} while 0 does once */ | |
fb73857a | 3336 | if (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB |
3337 | || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB)) { | |
774d564b | 3338 | expr = newUNOP(OP_DEFINED, 0, |
54b9620d | 3339 | newASSIGNOP(0, newDEFSVOP(), 0, expr) ); |
55d729e4 GS |
3340 | } else if (expr->op_flags & OPf_KIDS) { |
3341 | OP *k1 = ((UNOP*)expr)->op_first; | |
3342 | OP *k2 = (k1) ? k1->op_sibling : NULL; | |
3343 | switch (expr->op_type) { | |
3344 | case OP_NULL: | |
3345 | if (k2 && k2->op_type == OP_READLINE | |
3346 | && (k2->op_flags & OPf_STACKED) | |
3347 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) | |
3348 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3349 | break; | |
3350 | ||
3351 | case OP_SASSIGN: | |
3352 | if (k1->op_type == OP_READDIR | |
3353 | || k1->op_type == OP_GLOB | |
3354 | || k1->op_type == OP_EACH) | |
3355 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3356 | break; | |
3357 | } | |
774d564b | 3358 | } |
463ee0b2 | 3359 | } |
93a17b20 | 3360 | |
8990e307 | 3361 | listop = append_elem(OP_LINESEQ, block, newOP(OP_UNSTACK, 0)); |
883ffac3 | 3362 | o = new_logop(OP_AND, 0, &expr, &listop); |
463ee0b2 | 3363 | |
883ffac3 CS |
3364 | if (listop) |
3365 | ((LISTOP*)listop)->op_last->op_next = LINKLIST(o); | |
79072805 | 3366 | |
11343788 MB |
3367 | if (once && o != listop) |
3368 | o->op_next = ((LOGOP*)cUNOPo->op_first)->op_other; | |
79072805 | 3369 | |
11343788 MB |
3370 | if (o == listop) |
3371 | o = newUNOP(OP_NULL, 0, o); /* or do {} while 1 loses outer block */ | |
748a9306 | 3372 | |
11343788 MB |
3373 | o->op_flags |= flags; |
3374 | o = scope(o); | |
3375 | o->op_flags |= OPf_SPECIAL; /* suppress POPBLOCK curpm restoration*/ | |
3376 | return o; | |
79072805 LW |
3377 | } |
3378 | ||
3379 | OP * | |
864dbfa3 | 3380 | Perl_newWHILEOP(pTHX_ I32 flags, I32 debuggable, LOOP *loop, I32 whileline, OP *expr, OP *block, OP *cont) |
79072805 | 3381 | { |
11343788 | 3382 | dTHR; |
79072805 LW |
3383 | OP *redo; |
3384 | OP *next = 0; | |
3385 | OP *listop; | |
11343788 | 3386 | OP *o; |
79072805 LW |
3387 | OP *condop; |
3388 | ||
fb73857a | 3389 | if (expr && (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB |
3390 | || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB))) { | |
748a9306 | 3391 | expr = newUNOP(OP_DEFINED, 0, |
54b9620d | 3392 | newASSIGNOP(0, newDEFSVOP(), 0, expr) ); |
55d729e4 GS |
3393 | } else if (expr && (expr->op_flags & OPf_KIDS)) { |
3394 | OP *k1 = ((UNOP*)expr)->op_first; | |
3395 | OP *k2 = (k1) ? k1->op_sibling : NULL; | |
3396 | switch (expr->op_type) { | |
3397 | case OP_NULL: | |
3398 | if (k2 && k2->op_type == OP_READLINE | |
3399 | && (k2->op_flags & OPf_STACKED) | |
3400 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) | |
3401 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3402 | break; | |
3403 | ||
3404 | case OP_SASSIGN: | |
3405 | if (k1->op_type == OP_READDIR | |
3406 | || k1->op_type == OP_GLOB | |
3407 | || k1->op_type == OP_EACH) | |
3408 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3409 | break; | |
3410 | } | |
748a9306 | 3411 | } |
79072805 LW |
3412 | |
3413 | if (!block) | |
3414 | block = newOP(OP_NULL, 0); | |
3415 | ||
3416 | if (cont) | |
3417 | next = LINKLIST(cont); | |
fb73857a | 3418 | if (expr) { |
79072805 | 3419 | cont = append_elem(OP_LINESEQ, cont, newOP(OP_UNSTACK, 0)); |
fb73857a | 3420 | if ((line_t)whileline != NOLINE) { |
3280af22 | 3421 | PL_copline = whileline; |
fb73857a | 3422 | cont = append_elem(OP_LINESEQ, cont, |
3423 | newSTATEOP(0, Nullch, Nullop)); | |
3424 | } | |
3425 | } | |
79072805 | 3426 | |
463ee0b2 | 3427 | listop = append_list(OP_LINESEQ, (LISTOP*)block, (LISTOP*)cont); |
79072805 LW |
3428 | redo = LINKLIST(listop); |
3429 | ||
3430 | if (expr) { | |
3280af22 | 3431 | PL_copline = whileline; |
883ffac3 CS |
3432 | scalar(listop); |
3433 | o = new_logop(OP_AND, 0, &expr, &listop); | |
11343788 | 3434 | if (o == expr && o->op_type == OP_CONST && !SvTRUE(cSVOPo->op_sv)) { |
85e6fe83 | 3435 | op_free(expr); /* oops, it's a while (0) */ |
463ee0b2 | 3436 | op_free((OP*)loop); |
883ffac3 | 3437 | return Nullop; /* listop already freed by new_logop */ |
463ee0b2 | 3438 | } |
883ffac3 CS |
3439 | if (listop) |
3440 | ((LISTOP*)listop)->op_last->op_next = condop = | |
3441 | (o == listop ? redo : LINKLIST(o)); | |
79072805 LW |
3442 | if (!next) |
3443 | next = condop; | |
3444 | } | |
3445 | else | |
11343788 | 3446 | o = listop; |
79072805 LW |
3447 | |
3448 | if (!loop) { | |
b7dc083c | 3449 | NewOp(1101,loop,1,LOOP); |
79072805 | 3450 | loop->op_type = OP_ENTERLOOP; |
22c35a8c | 3451 | loop->op_ppaddr = PL_ppaddr[OP_ENTERLOOP]; |
79072805 LW |
3452 | loop->op_private = 0; |
3453 | loop->op_next = (OP*)loop; | |
3454 | } | |
3455 | ||
11343788 | 3456 | o = newBINOP(OP_LEAVELOOP, 0, (OP*)loop, o); |
79072805 LW |
3457 | |
3458 | loop->op_redoop = redo; | |
11343788 | 3459 | loop->op_lastop = o; |
79072805 LW |
3460 | |
3461 | if (next) | |
3462 | loop->op_nextop = next; | |
3463 | else | |
11343788 | 3464 | loop->op_nextop = o; |
79072805 | 3465 | |
11343788 MB |
3466 | o->op_flags |= flags; |
3467 | o->op_private |= (flags >> 8); | |
3468 | return o; | |
79072805 LW |
3469 | } |
3470 | ||
3471 | OP * | |
864dbfa3 | 3472 | Perl_newFOROP(pTHX_ I32 flags,char *label,line_t forline,OP *sv,OP *expr,OP *block,OP *cont) |
79072805 LW |
3473 | { |
3474 | LOOP *loop; | |
b7dc083c | 3475 | LOOP *tmp; |
fb73857a | 3476 | OP *wop; |
85e6fe83 | 3477 | int padoff = 0; |
4633a7c4 | 3478 | I32 iterflags = 0; |
79072805 | 3479 | |
79072805 | 3480 | if (sv) { |
85e6fe83 | 3481 | if (sv->op_type == OP_RV2SV) { /* symbol table variable */ |
748a9306 | 3482 | sv->op_type = OP_RV2GV; |
22c35a8c | 3483 | sv->op_ppaddr = PL_ppaddr[OP_RV2GV]; |
79072805 | 3484 | } |
85e6fe83 LW |
3485 | else if (sv->op_type == OP_PADSV) { /* private variable */ |
3486 | padoff = sv->op_targ; | |
3487 | op_free(sv); | |
3488 | sv = Nullop; | |
3489 | } | |
54b9620d MB |
3490 | else if (sv->op_type == OP_THREADSV) { /* per-thread variable */ |
3491 | padoff = sv->op_targ; | |
3492 | iterflags |= OPf_SPECIAL; | |
3493 | op_free(sv); | |
3494 | sv = Nullop; | |
3495 | } | |
79072805 | 3496 | else |
cea2e8a9 | 3497 | Perl_croak(aTHX_ "Can't use %s for loop variable", PL_op_desc[sv->op_type]); |
79072805 LW |
3498 | } |
3499 | else { | |
54b9620d MB |
3500 | #ifdef USE_THREADS |
3501 | padoff = find_threadsv("_"); | |
3502 | iterflags |= OPf_SPECIAL; | |
3503 | #else | |
3280af22 | 3504 | sv = newGVOP(OP_GV, 0, PL_defgv); |
54b9620d | 3505 | #endif |
79072805 | 3506 | } |
5f05dabc | 3507 | if (expr->op_type == OP_RV2AV || expr->op_type == OP_PADAV) { |
89ea2908 | 3508 | expr = mod(force_list(scalar(ref(expr, OP_ITER))), OP_GREPSTART); |
4633a7c4 LW |
3509 | iterflags |= OPf_STACKED; |
3510 | } | |
89ea2908 GA |
3511 | else if (expr->op_type == OP_NULL && |
3512 | (expr->op_flags & OPf_KIDS) && | |
3513 | ((BINOP*)expr)->op_first->op_type == OP_FLOP) | |
3514 | { | |
3515 | /* Basically turn for($x..$y) into the same as for($x,$y), but we | |
3516 | * set the STACKED flag to indicate that these values are to be | |
3517 | * treated as min/max values by 'pp_iterinit'. | |
3518 | */ | |
3519 | UNOP* flip = (UNOP*)((UNOP*)((BINOP*)expr)->op_first)->op_first; | |
1a67a97c | 3520 | LOGOP* range = (LOGOP*) flip->op_first; |
89ea2908 GA |
3521 | OP* left = range->op_first; |
3522 | OP* right = left->op_sibling; | |
5152d7c7 | 3523 | LISTOP* listop; |
89ea2908 GA |
3524 | |
3525 | range->op_flags &= ~OPf_KIDS; | |
3526 | range->op_first = Nullop; | |
3527 | ||
5152d7c7 | 3528 | listop = (LISTOP*)newLISTOP(OP_LIST, 0, left, right); |
1a67a97c SM |
3529 | listop->op_first->op_next = range->op_next; |
3530 | left->op_next = range->op_other; | |
5152d7c7 GS |
3531 | right->op_next = (OP*)listop; |
3532 | listop->op_next = listop->op_first; | |
89ea2908 GA |
3533 | |
3534 | op_free(expr); | |
5152d7c7 | 3535 | expr = (OP*)(listop); |
89ea2908 GA |
3536 | null(expr); |
3537 | iterflags |= OPf_STACKED; | |
3538 | } | |
3539 | else { | |
3540 | expr = mod(force_list(expr), OP_GREPSTART); | |
3541 | } | |
3542 | ||
3543 | ||
4633a7c4 | 3544 | loop = (LOOP*)list(convert(OP_ENTERITER, iterflags, |
89ea2908 | 3545 | append_elem(OP_LIST, expr, scalar(sv)))); |
85e6fe83 | 3546 | assert(!loop->op_next); |
b7dc083c NIS |
3547 | #ifdef PL_OP_SLAB_ALLOC |
3548 | NewOp(1234,tmp,1,LOOP); | |
3549 | Copy(loop,tmp,1,LOOP); | |
3550 | loop = tmp; | |
3551 | #else | |
85e6fe83 | 3552 | Renew(loop, 1, LOOP); |
b7dc083c | 3553 | #endif |
85e6fe83 | 3554 | loop->op_targ = padoff; |
fb73857a | 3555 | wop = newWHILEOP(flags, 1, loop, forline, newOP(OP_ITER, 0), block, cont); |
3280af22 | 3556 | PL_copline = forline; |
fb73857a | 3557 | return newSTATEOP(0, label, wop); |
79072805 LW |
3558 | } |
3559 | ||
8990e307 | 3560 | OP* |
864dbfa3 | 3561 | Perl_newLOOPEX(pTHX_ I32 type, OP *label) |
8990e307 | 3562 | { |
11343788 MB |
3563 | dTHR; |
3564 | OP *o; | |
2d8e6c8d GS |
3565 | STRLEN n_a; |
3566 | ||
8990e307 | 3567 | if (type != OP_GOTO || label->op_type == OP_CONST) { |
cdaebead MB |
3568 | /* "last()" means "last" */ |
3569 | if (label->op_type == OP_STUB && (label->op_flags & OPf_PARENS)) | |
3570 | o = newOP(type, OPf_SPECIAL); | |
3571 | else { | |
3572 | o = newPVOP(type, 0, savepv(label->op_type == OP_CONST | |
2d8e6c8d | 3573 | ? SvPVx(((SVOP*)label)->op_sv, n_a) |
cdaebead MB |
3574 | : "")); |
3575 | } | |
8990e307 LW |
3576 | op_free(label); |
3577 | } | |
3578 | else { | |
a0d0e21e LW |
3579 | if (label->op_type == OP_ENTERSUB) |
3580 | label = newUNOP(OP_REFGEN, 0, mod(label, OP_REFGEN)); | |
11343788 | 3581 | o = newUNOP(type, OPf_STACKED, label); |
8990e307 | 3582 | } |
3280af22 | 3583 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 | 3584 | return o; |
8990e307 LW |
3585 | } |
3586 | ||
79072805 | 3587 | void |
864dbfa3 | 3588 | Perl_cv_undef(pTHX_ CV *cv) |
79072805 | 3589 | { |
11343788 MB |
3590 | dTHR; |
3591 | #ifdef USE_THREADS | |
e858de61 MB |
3592 | if (CvMUTEXP(cv)) { |
3593 | MUTEX_DESTROY(CvMUTEXP(cv)); | |
3594 | Safefree(CvMUTEXP(cv)); | |
3595 | CvMUTEXP(cv) = 0; | |
3596 | } | |
11343788 MB |
3597 | #endif /* USE_THREADS */ |
3598 | ||
a0d0e21e | 3599 | if (!CvXSUB(cv) && CvROOT(cv)) { |
11343788 MB |
3600 | #ifdef USE_THREADS |
3601 | if (CvDEPTH(cv) || (CvOWNER(cv) && CvOWNER(cv) != thr)) | |
cea2e8a9 | 3602 | Perl_croak(aTHX_ "Can't undef active subroutine"); |
11343788 | 3603 | #else |
a0d0e21e | 3604 | if (CvDEPTH(cv)) |
cea2e8a9 | 3605 | Perl_croak(aTHX_ "Can't undef active subroutine"); |
11343788 | 3606 | #endif /* USE_THREADS */ |
8990e307 | 3607 | ENTER; |
a0d0e21e | 3608 | |
3280af22 NIS |
3609 | SAVESPTR(PL_curpad); |
3610 | PL_curpad = 0; | |
a0d0e21e | 3611 | |
a5f75d66 | 3612 | if (!CvCLONED(cv)) |
748a9306 | 3613 | op_free(CvROOT(cv)); |
79072805 | 3614 | CvROOT(cv) = Nullop; |
8990e307 | 3615 | LEAVE; |
79072805 | 3616 | } |
1d5db326 | 3617 | SvPOK_off((SV*)cv); /* forget prototype */ |
44a8e56a | 3618 | CvFLAGS(cv) = 0; |
8e07c86e AD |
3619 | SvREFCNT_dec(CvGV(cv)); |
3620 | CvGV(cv) = Nullgv; | |
3621 | SvREFCNT_dec(CvOUTSIDE(cv)); | |
3622 | CvOUTSIDE(cv) = Nullcv; | |
3623 | if (CvPADLIST(cv)) { | |
8ebc5c01 | 3624 | /* may be during global destruction */ |
3625 | if (SvREFCNT(CvPADLIST(cv))) { | |
93965878 | 3626 | I32 i = AvFILLp(CvPADLIST(cv)); |
8ebc5c01 | 3627 | while (i >= 0) { |
3628 | SV** svp = av_fetch(CvPADLIST(cv), i--, FALSE); | |
46fc3d4c | 3629 | SV* sv = svp ? *svp : Nullsv; |
3630 | if (!sv) | |
3631 | continue; | |
3280af22 NIS |
3632 | if (sv == (SV*)PL_comppad_name) |
3633 | PL_comppad_name = Nullav; | |
3634 | else if (sv == (SV*)PL_comppad) { | |
3635 | PL_comppad = Nullav; | |
3636 | PL_curpad = Null(SV**); | |
46fc3d4c | 3637 | } |
3638 | SvREFCNT_dec(sv); | |
8ebc5c01 | 3639 | } |
3640 | SvREFCNT_dec((SV*)CvPADLIST(cv)); | |
8e07c86e | 3641 | } |
8e07c86e AD |
3642 | CvPADLIST(cv) = Nullav; |
3643 | } | |
79072805 LW |
3644 | } |
3645 | ||
5f05dabc | 3646 | #ifdef DEBUG_CLOSURES |
76e3520e | 3647 | STATIC void |
ba106d47 | 3648 | cv_dump(CV *cv) |
5f05dabc | 3649 | { |
3650 | CV *outside = CvOUTSIDE(cv); | |
3651 | AV* padlist = CvPADLIST(cv); | |
4fdae800 | 3652 | AV* pad_name; |
3653 | AV* pad; | |
3654 | SV** pname; | |
3655 | SV** ppad; | |
5f05dabc | 3656 | I32 ix; |
3657 | ||
fb73857a | 3658 | PerlIO_printf(Perl_debug_log, "\tCV=0x%lx (%s), OUTSIDE=0x%lx (%s)\n", |
ab50184a CS |
3659 | cv, |
3660 | (CvANON(cv) ? "ANON" | |
6b88bc9c | 3661 | : (cv == PL_main_cv) ? "MAIN" |
33b8ce05 | 3662 | : CvUNIQUE(cv) ? "UNIQUE" |
44a8e56a | 3663 | : CvGV(cv) ? GvNAME(CvGV(cv)) : "UNDEFINED"), |
ab50184a CS |
3664 | outside, |
3665 | (!outside ? "null" | |
3666 | : CvANON(outside) ? "ANON" | |
6b88bc9c | 3667 | : (outside == PL_main_cv) ? "MAIN" |
07055b4c | 3668 | : CvUNIQUE(outside) ? "UNIQUE" |
44a8e56a | 3669 | : CvGV(outside) ? GvNAME(CvGV(outside)) : "UNDEFINED")); |
5f05dabc | 3670 | |
4fdae800 | 3671 | if (!padlist) |
3672 | return; | |
3673 | ||
3674 | pad_name = (AV*)*av_fetch(padlist, 0, FALSE); | |
3675 | pad = (AV*)*av_fetch(padlist, 1, FALSE); | |
3676 | pname = AvARRAY(pad_name); | |
3677 | ppad = AvARRAY(pad); | |
3678 | ||
93965878 | 3679 | for (ix = 1; ix <= AvFILLp(pad_name); ix++) { |
5f05dabc | 3680 | if (SvPOK(pname[ix])) |
fb73857a | 3681 | PerlIO_printf(Perl_debug_log, "\t%4d. 0x%lx (%s\"%s\" %ld-%ld)\n", |
4fdae800 | 3682 | ix, ppad[ix], |
3683 | SvFAKE(pname[ix]) ? "FAKE " : "", | |
3684 | SvPVX(pname[ix]), | |
ab50184a CS |
3685 | (long)I_32(SvNVX(pname[ix])), |
3686 | (long)SvIVX(pname[ix])); | |
5f05dabc | 3687 | } |
3688 | } | |
3689 | #endif /* DEBUG_CLOSURES */ | |
3690 | ||
76e3520e | 3691 | STATIC CV * |
cea2e8a9 | 3692 | S_cv_clone2(pTHX_ CV *proto, CV *outside) |
748a9306 | 3693 | { |
11343788 | 3694 | dTHR; |
748a9306 LW |
3695 | AV* av; |
3696 | I32 ix; | |
3697 | AV* protopadlist = CvPADLIST(proto); | |
3698 | AV* protopad_name = (AV*)*av_fetch(protopadlist, 0, FALSE); | |
3699 | AV* protopad = (AV*)*av_fetch(protopadlist, 1, FALSE); | |
5f05dabc | 3700 | SV** pname = AvARRAY(protopad_name); |
3701 | SV** ppad = AvARRAY(protopad); | |
93965878 NIS |
3702 | I32 fname = AvFILLp(protopad_name); |
3703 | I32 fpad = AvFILLp(protopad); | |
748a9306 LW |
3704 | AV* comppadlist; |
3705 | CV* cv; | |
3706 | ||
07055b4c CS |
3707 | assert(!CvUNIQUE(proto)); |
3708 | ||
748a9306 | 3709 | ENTER; |
3280af22 NIS |
3710 | SAVESPTR(PL_curpad); |
3711 | SAVESPTR(PL_comppad); | |
3712 | SAVESPTR(PL_comppad_name); | |
3713 | SAVESPTR(PL_compcv); | |
748a9306 | 3714 | |
3280af22 | 3715 | cv = PL_compcv = (CV*)NEWSV(1104,0); |
fa83b5b6 | 3716 | sv_upgrade((SV *)cv, SvTYPE(proto)); |
a5f75d66 | 3717 | CvCLONED_on(cv); |
5f05dabc | 3718 | if (CvANON(proto)) |
3719 | CvANON_on(cv); | |
748a9306 | 3720 | |
11343788 | 3721 | #ifdef USE_THREADS |
12ca11f6 | 3722 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
11343788 | 3723 | MUTEX_INIT(CvMUTEXP(cv)); |
11343788 MB |
3724 | CvOWNER(cv) = 0; |
3725 | #endif /* USE_THREADS */ | |
748a9306 | 3726 | CvFILEGV(cv) = CvFILEGV(proto); |
44a8e56a | 3727 | CvGV(cv) = (GV*)SvREFCNT_inc(CvGV(proto)); |
748a9306 LW |
3728 | CvSTASH(cv) = CvSTASH(proto); |
3729 | CvROOT(cv) = CvROOT(proto); | |
3730 | CvSTART(cv) = CvSTART(proto); | |
5f05dabc | 3731 | if (outside) |
3732 | CvOUTSIDE(cv) = (CV*)SvREFCNT_inc(outside); | |
748a9306 | 3733 | |
68dc0745 | 3734 | if (SvPOK(proto)) |
3735 | sv_setpvn((SV*)cv, SvPVX(proto), SvCUR(proto)); | |
3736 | ||
3280af22 | 3737 | PL_comppad_name = newAV(); |
46fc3d4c | 3738 | for (ix = fname; ix >= 0; ix--) |
3280af22 | 3739 | av_store(PL_comppad_name, ix, SvREFCNT_inc(pname[ix])); |
748a9306 | 3740 | |
3280af22 | 3741 | PL_comppad = newAV(); |
748a9306 LW |
3742 | |
3743 | comppadlist = newAV(); | |
3744 | AvREAL_off(comppadlist); | |
3280af22 NIS |
3745 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
3746 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
748a9306 | 3747 | CvPADLIST(cv) = comppadlist; |
3280af22 NIS |
3748 | av_fill(PL_comppad, AvFILLp(protopad)); |
3749 | PL_curpad = AvARRAY(PL_comppad); | |
748a9306 LW |
3750 | |
3751 | av = newAV(); /* will be @_ */ | |
3752 | av_extend(av, 0); | |
3280af22 | 3753 | av_store(PL_comppad, 0, (SV*)av); |
748a9306 LW |
3754 | AvFLAGS(av) = AVf_REIFY; |
3755 | ||
9607fc9c | 3756 | for (ix = fpad; ix > 0; ix--) { |
3757 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; | |
3280af22 | 3758 | if (namesv && namesv != &PL_sv_undef) { |
aa689395 | 3759 | char *name = SvPVX(namesv); /* XXX */ |
3760 | if (SvFLAGS(namesv) & SVf_FAKE) { /* lexical from outside? */ | |
3761 | I32 off = pad_findlex(name, ix, SvIVX(namesv), | |
2680586e | 3762 | CvOUTSIDE(cv), cxstack_ix, 0, 0); |
5f05dabc | 3763 | if (!off) |
3280af22 | 3764 | PL_curpad[ix] = SvREFCNT_inc(ppad[ix]); |
5f05dabc | 3765 | else if (off != ix) |
cea2e8a9 | 3766 | Perl_croak(aTHX_ "panic: cv_clone: %s", name); |
748a9306 LW |
3767 | } |
3768 | else { /* our own lexical */ | |
aa689395 | 3769 | SV* sv; |
5f05dabc | 3770 | if (*name == '&') { |
3771 | /* anon code -- we'll come back for it */ | |
3772 | sv = SvREFCNT_inc(ppad[ix]); | |
3773 | } | |
3774 | else if (*name == '@') | |
3775 | sv = (SV*)newAV(); | |
748a9306 | 3776 | else if (*name == '%') |
5f05dabc | 3777 | sv = (SV*)newHV(); |
748a9306 | 3778 | else |
5f05dabc | 3779 | sv = NEWSV(0,0); |
3780 | if (!SvPADBUSY(sv)) | |
3781 | SvPADMY_on(sv); | |
3280af22 | 3782 | PL_curpad[ix] = sv; |
748a9306 LW |
3783 | } |
3784 | } | |
3785 | else { | |
aa689395 | 3786 | SV* sv = NEWSV(0,0); |
748a9306 | 3787 | SvPADTMP_on(sv); |
3280af22 | 3788 | PL_curpad[ix] = sv; |
748a9306 LW |
3789 | } |
3790 | } | |
3791 | ||
5f05dabc | 3792 | /* Now that vars are all in place, clone nested closures. */ |
3793 | ||
9607fc9c | 3794 | for (ix = fpad; ix > 0; ix--) { |
3795 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; | |
aa689395 | 3796 | if (namesv |
3280af22 | 3797 | && namesv != &PL_sv_undef |
aa689395 | 3798 | && !(SvFLAGS(namesv) & SVf_FAKE) |
3799 | && *SvPVX(namesv) == '&' | |
5f05dabc | 3800 | && CvCLONE(ppad[ix])) |
3801 | { | |
3802 | CV *kid = cv_clone2((CV*)ppad[ix], cv); | |
3803 | SvREFCNT_dec(ppad[ix]); | |
3804 | CvCLONE_on(kid); | |
3805 | SvPADMY_on(kid); | |
3280af22 | 3806 | PL_curpad[ix] = (SV*)kid; |
748a9306 LW |
3807 | } |
3808 | } | |
3809 | ||
5f05dabc | 3810 | #ifdef DEBUG_CLOSURES |
ab50184a CS |
3811 | PerlIO_printf(Perl_debug_log, "Cloned inside:\n"); |
3812 | cv_dump(outside); | |
3813 | PerlIO_printf(Perl_debug_log, " from:\n"); | |
5f05dabc | 3814 | cv_dump(proto); |
ab50184a | 3815 | PerlIO_printf(Perl_debug_log, " to:\n"); |
5f05dabc | 3816 | cv_dump(cv); |
3817 | #endif | |
3818 | ||
748a9306 LW |
3819 | LEAVE; |
3820 | return cv; | |
3821 | } | |
3822 | ||
3823 | CV * | |
864dbfa3 | 3824 | Perl_cv_clone(pTHX_ CV *proto) |
5f05dabc | 3825 | { |
b099ddc0 GS |
3826 | CV *cv; |
3827 | MUTEX_LOCK(&PL_cred_mutex); /* XXX create separate mutex */ | |
3828 | cv = cv_clone2(proto, CvOUTSIDE(proto)); | |
3829 | MUTEX_UNLOCK(&PL_cred_mutex); /* XXX create separate mutex */ | |
3830 | return cv; | |
5f05dabc | 3831 | } |
3832 | ||
3fe9a6f1 | 3833 | void |
864dbfa3 | 3834 | Perl_cv_ckproto(pTHX_ CV *cv, GV *gv, char *p) |
3fe9a6f1 | 3835 | { |
0453d815 PM |
3836 | dTHR; |
3837 | ||
f248d071 | 3838 | if (((!p != !SvPOK(cv)) || (p && strNE(p, SvPVX(cv)))) && ckWARN_d(WARN_UNSAFE)) { |
46fc3d4c | 3839 | SV* msg = sv_newmortal(); |
3fe9a6f1 | 3840 | SV* name = Nullsv; |
3841 | ||
3842 | if (gv) | |
46fc3d4c | 3843 | gv_efullname3(name = sv_newmortal(), gv, Nullch); |
3844 | sv_setpv(msg, "Prototype mismatch:"); | |
3845 | if (name) | |
cea2e8a9 | 3846 | Perl_sv_catpvf(aTHX_ msg, " sub %_", name); |
3fe9a6f1 | 3847 | if (SvPOK(cv)) |
cea2e8a9 | 3848 | Perl_sv_catpvf(aTHX_ msg, " (%s)", SvPVX(cv)); |
46fc3d4c | 3849 | sv_catpv(msg, " vs "); |
3850 | if (p) | |
cea2e8a9 | 3851 | Perl_sv_catpvf(aTHX_ msg, "(%s)", p); |
46fc3d4c | 3852 | else |
3853 | sv_catpv(msg, "none"); | |
0453d815 | 3854 | Perl_warner(aTHX_ WARN_UNSAFE, "%_", msg); |
3fe9a6f1 | 3855 | } |
3856 | } | |
3857 | ||
760ac839 | 3858 | SV * |
864dbfa3 | 3859 | Perl_cv_const_sv(pTHX_ CV *cv) |
760ac839 | 3860 | { |
54310121 | 3861 | if (!cv || !SvPOK(cv) || SvCUR(cv)) |
3862 | return Nullsv; | |
fe5e78ed GS |
3863 | return op_const_sv(CvSTART(cv), cv); |
3864 | } | |
760ac839 | 3865 | |
fe5e78ed | 3866 | SV * |
864dbfa3 | 3867 | Perl_op_const_sv(pTHX_ OP *o, CV *cv) |
fe5e78ed GS |
3868 | { |
3869 | SV *sv = Nullsv; | |
3870 | ||
3871 | if(!o) | |
3872 | return Nullsv; | |
3873 | ||
3874 | if(o->op_type == OP_LINESEQ && cLISTOPo->op_first) | |
3875 | o = cLISTOPo->op_first->op_sibling; | |
3876 | ||
3877 | for (; o; o = o->op_next) { | |
54310121 | 3878 | OPCODE type = o->op_type; |
fe5e78ed | 3879 | |
acb36ea4 | 3880 | if (sv && o->op_next == o) |
fe5e78ed | 3881 | return sv; |
54310121 | 3882 | if (type == OP_NEXTSTATE || type == OP_NULL || type == OP_PUSHMARK) |
3883 | continue; | |
3884 | if (type == OP_LEAVESUB || type == OP_RETURN) | |
3885 | break; | |
3886 | if (sv) | |
3887 | return Nullsv; | |
3888 | if (type == OP_CONST) | |
5dc0d613 | 3889 | sv = cSVOPo->op_sv; |
fe5e78ed | 3890 | else if (type == OP_PADSV && cv) { |
e858de61 MB |
3891 | AV* padav = (AV*)(AvARRAY(CvPADLIST(cv))[1]); |
3892 | sv = padav ? AvARRAY(padav)[o->op_targ] : Nullsv; | |
5aabfad6 | 3893 | if (!sv || (!SvREADONLY(sv) && SvREFCNT(sv) > 1)) |
54310121 | 3894 | return Nullsv; |
760ac839 | 3895 | } |
54310121 | 3896 | else |
3897 | return Nullsv; | |
760ac839 | 3898 | } |
5aabfad6 | 3899 | if (sv) |
3900 | SvREADONLY_on(sv); | |
760ac839 LW |
3901 | return sv; |
3902 | } | |
3903 | ||
748a9306 | 3904 | CV * |
864dbfa3 | 3905 | Perl_newSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *block) |
79072805 | 3906 | { |
11343788 | 3907 | dTHR; |
2d8e6c8d GS |
3908 | STRLEN n_a; |
3909 | char *name = o ? SvPVx(cSVOPo->op_sv, n_a) : Nullch; | |
55d729e4 GS |
3910 | GV *gv = gv_fetchpv(name ? name : "__ANON__", |
3911 | GV_ADDMULTI | (block ? 0 : GV_NOINIT), SVt_PVCV); | |
2d8e6c8d | 3912 | char *ps = proto ? SvPVx(((SVOP*)proto)->op_sv, n_a) : Nullch; |
a2008d6d | 3913 | register CV *cv=0; |
a0d0e21e | 3914 | I32 ix; |
79072805 | 3915 | |
11343788 | 3916 | if (o) |
5dc0d613 | 3917 | SAVEFREEOP(o); |
3fe9a6f1 | 3918 | if (proto) |
3919 | SAVEFREEOP(proto); | |
3920 | ||
55d729e4 GS |
3921 | if (SvTYPE(gv) != SVt_PVGV) { /* Prototype now, and had |
3922 | maximum a prototype before. */ | |
3923 | if (SvTYPE(gv) > SVt_NULL) { | |
0453d815 | 3924 | if (!SvPOK((SV*)gv) && !(SvIOK((SV*)gv) && SvIVX((SV*)gv) == -1) |
f248d071 GS |
3925 | && ckWARN_d(WARN_UNSAFE)) |
3926 | { | |
0453d815 | 3927 | Perl_warner(aTHX_ WARN_UNSAFE, "Runaway prototype"); |
f248d071 | 3928 | } |
55d729e4 GS |
3929 | cv_ckproto((CV*)gv, NULL, ps); |
3930 | } | |
3931 | if (ps) | |
3932 | sv_setpv((SV*)gv, ps); | |
3933 | else | |
3934 | sv_setiv((SV*)gv, -1); | |
3280af22 NIS |
3935 | SvREFCNT_dec(PL_compcv); |
3936 | cv = PL_compcv = NULL; | |
3937 | PL_sub_generation++; | |
55d729e4 GS |
3938 | goto noblock; |
3939 | } | |
3940 | ||
68dc0745 | 3941 | if (!name || GvCVGEN(gv)) |
3942 | cv = Nullcv; | |
3943 | else if (cv = GvCV(gv)) { | |
3fe9a6f1 | 3944 | cv_ckproto(cv, gv, ps); |
68dc0745 | 3945 | /* already defined (or promised)? */ |
3946 | if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) { | |
3947 | SV* const_sv; | |
fe5e78ed | 3948 | bool const_changed = TRUE; |
aa689395 | 3949 | if (!block) { |
3950 | /* just a "sub foo;" when &foo is already defined */ | |
3280af22 | 3951 | SAVEFREESV(PL_compcv); |
aa689395 | 3952 | goto done; |
3953 | } | |
7bac28a0 | 3954 | /* ahem, death to those who redefine active sort subs */ |
3280af22 | 3955 | if (PL_curstackinfo->si_type == PERLSI_SORT && PL_sortcop == CvSTART(cv)) |
cea2e8a9 | 3956 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", name); |
fe5e78ed GS |
3957 | if(const_sv = cv_const_sv(cv)) |
3958 | const_changed = sv_cmp(const_sv, op_const_sv(block, Nullcv)); | |
599cee73 PM |
3959 | if ((const_sv && const_changed) || ckWARN(WARN_REDEFINE) |
3960 | && !(CvGV(cv) && GvSTASH(CvGV(cv)) | |
2f34f9d4 IZ |
3961 | && HvNAME(GvSTASH(CvGV(cv))) |
3962 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), | |
3963 | "autouse"))) { | |
3280af22 NIS |
3964 | line_t oldline = PL_curcop->cop_line; |
3965 | PL_curcop->cop_line = PL_copline; | |
cea2e8a9 | 3966 | Perl_warner(aTHX_ WARN_REDEFINE, |
599cee73 PM |
3967 | const_sv ? "Constant subroutine %s redefined" |
3968 | : "Subroutine %s redefined", name); | |
3280af22 | 3969 | PL_curcop->cop_line = oldline; |
79072805 | 3970 | } |
8990e307 | 3971 | SvREFCNT_dec(cv); |
68dc0745 | 3972 | cv = Nullcv; |
79072805 LW |
3973 | } |
3974 | } | |
a0d0e21e | 3975 | if (cv) { /* must reuse cv if autoloaded */ |
4633a7c4 | 3976 | cv_undef(cv); |
3280af22 NIS |
3977 | CvFLAGS(cv) = CvFLAGS(PL_compcv); |
3978 | CvOUTSIDE(cv) = CvOUTSIDE(PL_compcv); | |
3979 | CvOUTSIDE(PL_compcv) = 0; | |
3980 | CvPADLIST(cv) = CvPADLIST(PL_compcv); | |
3981 | CvPADLIST(PL_compcv) = 0; | |
3982 | if (SvREFCNT(PL_compcv) > 1) /* XXX Make closures transit through stub. */ | |
3983 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc((SV*)cv); | |
3984 | SvREFCNT_dec(PL_compcv); | |
a0d0e21e LW |
3985 | } |
3986 | else { | |
3280af22 | 3987 | cv = PL_compcv; |
44a8e56a | 3988 | if (name) { |
3989 | GvCV(gv) = cv; | |
3990 | GvCVGEN(gv) = 0; | |
3280af22 | 3991 | PL_sub_generation++; |
44a8e56a | 3992 | } |
a0d0e21e | 3993 | } |
44a8e56a | 3994 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
3280af22 NIS |
3995 | CvFILEGV(cv) = PL_curcop->cop_filegv; |
3996 | CvSTASH(cv) = PL_curstash; | |
11343788 MB |
3997 | #ifdef USE_THREADS |
3998 | CvOWNER(cv) = 0; | |
1cfa4ec7 | 3999 | if (!CvMUTEXP(cv)) { |
f6aaf501 | 4000 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
1cfa4ec7 GS |
4001 | MUTEX_INIT(CvMUTEXP(cv)); |
4002 | } | |
11343788 | 4003 | #endif /* USE_THREADS */ |
8990e307 | 4004 | |
3fe9a6f1 | 4005 | if (ps) |
4006 | sv_setpv((SV*)cv, ps); | |
4633a7c4 | 4007 | |
3280af22 | 4008 | if (PL_error_count) { |
c07a80fd | 4009 | op_free(block); |
4010 | block = Nullop; | |
68dc0745 | 4011 | if (name) { |
4012 | char *s = strrchr(name, ':'); | |
4013 | s = s ? s+1 : name; | |
6d4c2119 CS |
4014 | if (strEQ(s, "BEGIN")) { |
4015 | char *not_safe = | |
4016 | "BEGIN not safe after errors--compilation aborted"; | |
faef0170 | 4017 | if (PL_in_eval & EVAL_KEEPERR) |
cea2e8a9 | 4018 | Perl_croak(aTHX_ not_safe); |
6d4c2119 CS |
4019 | else { |
4020 | /* force display of errors found but not reported */ | |
38a03e6e | 4021 | sv_catpv(ERRSV, not_safe); |
cea2e8a9 | 4022 | Perl_croak(aTHX_ "%s", SvPVx(ERRSV, n_a)); |
6d4c2119 CS |
4023 | } |
4024 | } | |
68dc0745 | 4025 | } |
c07a80fd | 4026 | } |
a0d0e21e | 4027 | if (!block) { |
55d729e4 | 4028 | noblock: |
3280af22 | 4029 | PL_copline = NOLINE; |
a0d0e21e LW |
4030 | LEAVE_SCOPE(floor); |
4031 | return cv; | |
4032 | } | |
4033 | ||
3280af22 NIS |
4034 | if (AvFILLp(PL_comppad_name) < AvFILLp(PL_comppad)) |
4035 | av_store(PL_comppad_name, AvFILLp(PL_comppad), Nullsv); | |
a0d0e21e | 4036 | |
54310121 | 4037 | if (CvCLONE(cv)) { |
3280af22 NIS |
4038 | SV **namep = AvARRAY(PL_comppad_name); |
4039 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { | |
54310121 | 4040 | SV *namesv; |
4041 | ||
3280af22 | 4042 | if (SvIMMORTAL(PL_curpad[ix])) |
54310121 | 4043 | continue; |
4044 | /* | |
4045 | * The only things that a clonable function needs in its | |
4046 | * pad are references to outer lexicals and anonymous subs. | |
4047 | * The rest are created anew during cloning. | |
4048 | */ | |
4049 | if (!((namesv = namep[ix]) != Nullsv && | |
3280af22 | 4050 | namesv != &PL_sv_undef && |
54310121 | 4051 | (SvFAKE(namesv) || |
4052 | *SvPVX(namesv) == '&'))) | |
4053 | { | |
3280af22 NIS |
4054 | SvREFCNT_dec(PL_curpad[ix]); |
4055 | PL_curpad[ix] = Nullsv; | |
54310121 | 4056 | } |
4057 | } | |
a0d0e21e | 4058 | } |
54310121 | 4059 | else { |
4060 | AV *av = newAV(); /* Will be @_ */ | |
4061 | av_extend(av, 0); | |
3280af22 | 4062 | av_store(PL_comppad, 0, (SV*)av); |
54310121 | 4063 | AvFLAGS(av) = AVf_REIFY; |
79072805 | 4064 | |
3280af22 NIS |
4065 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { |
4066 | if (SvIMMORTAL(PL_curpad[ix])) | |
54310121 | 4067 | continue; |
3280af22 NIS |
4068 | if (!SvPADMY(PL_curpad[ix])) |
4069 | SvPADTMP_on(PL_curpad[ix]); | |
54310121 | 4070 | } |
4071 | } | |
79072805 | 4072 | |
a0d0e21e | 4073 | CvROOT(cv) = newUNOP(OP_LEAVESUB, 0, scalarseq(block)); |
79072805 LW |
4074 | CvSTART(cv) = LINKLIST(CvROOT(cv)); |
4075 | CvROOT(cv)->op_next = 0; | |
4076 | peep(CvSTART(cv)); | |
93a17b20 | 4077 | |
44a8e56a | 4078 | if (name) { |
4079 | char *s; | |
4080 | ||
3280af22 | 4081 | if (PERLDB_SUBLINE && PL_curstash != PL_debstash) { |
46fc3d4c | 4082 | SV *sv = NEWSV(0,0); |
44a8e56a | 4083 | SV *tmpstr = sv_newmortal(); |
549bb64a | 4084 | GV *db_postponed = gv_fetchpv("DB::postponed", GV_ADDMULTI, SVt_PVHV); |
44a8e56a | 4085 | CV *cv; |
4086 | HV *hv; | |
4087 | ||
cea2e8a9 | 4088 | Perl_sv_setpvf(aTHX_ sv, "%_:%ld-%ld", |
3280af22 NIS |
4089 | GvSV(PL_curcop->cop_filegv), |
4090 | (long)PL_subline, (long)PL_curcop->cop_line); | |
44a8e56a | 4091 | gv_efullname3(tmpstr, gv, Nullch); |
3280af22 | 4092 | hv_store(GvHV(PL_DBsub), SvPVX(tmpstr), SvCUR(tmpstr), sv, 0); |
44a8e56a | 4093 | hv = GvHVn(db_postponed); |
9607fc9c | 4094 | if (HvFILL(hv) > 0 && hv_exists(hv, SvPVX(tmpstr), SvCUR(tmpstr)) |
4095 | && (cv = GvCV(db_postponed))) { | |
44a8e56a | 4096 | dSP; |
924508f0 | 4097 | PUSHMARK(SP); |
44a8e56a | 4098 | XPUSHs(tmpstr); |
4099 | PUTBACK; | |
864dbfa3 | 4100 | call_sv((SV*)cv, G_DISCARD); |
44a8e56a | 4101 | } |
4102 | } | |
79072805 | 4103 | |
44a8e56a | 4104 | if ((s = strrchr(name,':'))) |
28757baa | 4105 | s++; |
4106 | else | |
4107 | s = name; | |
68dc0745 | 4108 | if (strEQ(s, "BEGIN")) { |
3280af22 | 4109 | I32 oldscope = PL_scopestack_ix; |
28757baa | 4110 | ENTER; |
3280af22 NIS |
4111 | SAVESPTR(PL_compiling.cop_filegv); |
4112 | SAVEI16(PL_compiling.cop_line); | |
4113 | save_svref(&PL_rs); | |
4114 | sv_setsv(PL_rs, PL_nrs); | |
28757baa | 4115 | |
3280af22 NIS |
4116 | if (!PL_beginav) |
4117 | PL_beginav = newAV(); | |
28757baa | 4118 | DEBUG_x( dump_sub(gv) ); |
3280af22 | 4119 | av_push(PL_beginav, (SV *)cv); |
28757baa | 4120 | GvCV(gv) = 0; |
3280af22 | 4121 | call_list(oldscope, PL_beginav); |
a6006777 | 4122 | |
3280af22 | 4123 | PL_curcop = &PL_compiling; |
a0ed51b3 | 4124 | PL_compiling.op_private = PL_hints; |
28757baa | 4125 | LEAVE; |
4126 | } | |
3280af22 NIS |
4127 | else if (strEQ(s, "END") && !PL_error_count) { |
4128 | if (!PL_endav) | |
4129 | PL_endav = newAV(); | |
4130 | av_unshift(PL_endav, 1); | |
4131 | av_store(PL_endav, 0, (SV *)cv); | |
28757baa | 4132 | GvCV(gv) = 0; |
4133 | } | |
3280af22 NIS |
4134 | else if (strEQ(s, "INIT") && !PL_error_count) { |
4135 | if (!PL_initav) | |
4136 | PL_initav = newAV(); | |
4137 | av_push(PL_initav, SvREFCNT_inc(cv)); | |
b7aad4fe | 4138 | GvCV(gv) = 0; |
ae77835f | 4139 | } |
79072805 | 4140 | } |
a6006777 | 4141 | |
aa689395 | 4142 | done: |
3280af22 | 4143 | PL_copline = NOLINE; |
8990e307 | 4144 | LEAVE_SCOPE(floor); |
a0d0e21e | 4145 | return cv; |
79072805 LW |
4146 | } |
4147 | ||
b099ddc0 | 4148 | /* XXX unsafe for threads if eval_owner isn't held */ |
5476c433 | 4149 | void |
864dbfa3 | 4150 | Perl_newCONSTSUB(pTHX_ HV *stash, char *name, SV *sv) |
5476c433 JD |
4151 | { |
4152 | dTHR; | |
3280af22 NIS |
4153 | U32 oldhints = PL_hints; |
4154 | HV *old_cop_stash = PL_curcop->cop_stash; | |
4155 | HV *old_curstash = PL_curstash; | |
4156 | line_t oldline = PL_curcop->cop_line; | |
4157 | PL_curcop->cop_line = PL_copline; | |
5476c433 | 4158 | |
3280af22 | 4159 | PL_hints &= ~HINT_BLOCK_SCOPE; |
5476c433 | 4160 | if(stash) |
3280af22 | 4161 | PL_curstash = PL_curcop->cop_stash = stash; |
5476c433 JD |
4162 | |
4163 | newSUB( | |
be24f278 | 4164 | start_subparse(FALSE, 0), |
5476c433 | 4165 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
6b88bc9c | 4166 | newSVOP(OP_CONST, 0, &PL_sv_no), /* SvPV(&PL_sv_no) == "" -- GMB */ |
5476c433 JD |
4167 | newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv)) |
4168 | ); | |
4169 | ||
3280af22 NIS |
4170 | PL_hints = oldhints; |
4171 | PL_curcop->cop_stash = old_cop_stash; | |
4172 | PL_curstash = old_curstash; | |
4173 | PL_curcop->cop_line = oldline; | |
5476c433 JD |
4174 | } |
4175 | ||
57d3b86d | 4176 | CV * |
864dbfa3 | 4177 | Perl_newXS(pTHX_ char *name, XSUBADDR_t subaddr, char *filename) |
a0d0e21e | 4178 | { |
11343788 | 4179 | dTHR; |
44a8e56a | 4180 | GV *gv = gv_fetchpv(name ? name : "__ANON__", GV_ADDMULTI, SVt_PVCV); |
79072805 | 4181 | register CV *cv; |
44a8e56a | 4182 | |
4183 | if (cv = (name ? GvCV(gv) : Nullcv)) { | |
4184 | if (GvCVGEN(gv)) { | |
4185 | /* just a cached method */ | |
4186 | SvREFCNT_dec(cv); | |
4187 | cv = 0; | |
4188 | } | |
4189 | else if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) { | |
4190 | /* already defined (or promised) */ | |
599cee73 | 4191 | if (ckWARN(WARN_REDEFINE) && !(CvGV(cv) && GvSTASH(CvGV(cv)) |
2f34f9d4 IZ |
4192 | && HvNAME(GvSTASH(CvGV(cv))) |
4193 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), "autouse"))) { | |
3280af22 | 4194 | line_t oldline = PL_curcop->cop_line; |
51f6edd3 GS |
4195 | if (PL_copline != NOLINE) |
4196 | PL_curcop->cop_line = PL_copline; | |
cea2e8a9 | 4197 | Perl_warner(aTHX_ WARN_REDEFINE, "Subroutine %s redefined",name); |
3280af22 | 4198 | PL_curcop->cop_line = oldline; |
a0d0e21e LW |
4199 | } |
4200 | SvREFCNT_dec(cv); | |
4201 | cv = 0; | |
79072805 | 4202 | } |
79072805 | 4203 | } |
44a8e56a | 4204 | |
4205 | if (cv) /* must reuse cv if autoloaded */ | |
4206 | cv_undef(cv); | |
a0d0e21e LW |
4207 | else { |
4208 | cv = (CV*)NEWSV(1105,0); | |
4209 | sv_upgrade((SV *)cv, SVt_PVCV); | |
44a8e56a | 4210 | if (name) { |
4211 | GvCV(gv) = cv; | |
4212 | GvCVGEN(gv) = 0; | |
3280af22 | 4213 | PL_sub_generation++; |
44a8e56a | 4214 | } |
a0d0e21e | 4215 | } |
5196be3e | 4216 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
11343788 | 4217 | #ifdef USE_THREADS |
12ca11f6 | 4218 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
11343788 | 4219 | MUTEX_INIT(CvMUTEXP(cv)); |
11343788 MB |
4220 | CvOWNER(cv) = 0; |
4221 | #endif /* USE_THREADS */ | |
79072805 | 4222 | CvFILEGV(cv) = gv_fetchfile(filename); |
a0d0e21e | 4223 | CvXSUB(cv) = subaddr; |
44a8e56a | 4224 | |
28757baa | 4225 | if (name) { |
4226 | char *s = strrchr(name,':'); | |
4227 | if (s) | |
4228 | s++; | |
4229 | else | |
4230 | s = name; | |
4231 | if (strEQ(s, "BEGIN")) { | |
3280af22 NIS |
4232 | if (!PL_beginav) |
4233 | PL_beginav = newAV(); | |
4234 | av_push(PL_beginav, (SV *)cv); | |
44a8e56a | 4235 | GvCV(gv) = 0; |
28757baa | 4236 | } |
4237 | else if (strEQ(s, "END")) { | |
3280af22 NIS |
4238 | if (!PL_endav) |
4239 | PL_endav = newAV(); | |
4240 | av_unshift(PL_endav, 1); | |
4241 | av_store(PL_endav, 0, (SV *)cv); | |
44a8e56a | 4242 | GvCV(gv) = 0; |
28757baa | 4243 | } |
7d07dbc2 | 4244 | else if (strEQ(s, "INIT")) { |
3280af22 NIS |
4245 | if (!PL_initav) |
4246 | PL_initav = newAV(); | |
4247 | av_push(PL_initav, (SV *)cv); | |
f8f842e4 | 4248 | GvCV(gv) = 0; |
ae77835f | 4249 | } |
28757baa | 4250 | } |
8990e307 | 4251 | else |
a5f75d66 | 4252 | CvANON_on(cv); |
44a8e56a | 4253 | |
a0d0e21e | 4254 | return cv; |
79072805 LW |
4255 | } |
4256 | ||
4257 | void | |
864dbfa3 | 4258 | Perl_newFORM(pTHX_ I32 floor, OP *o, OP *block) |
79072805 | 4259 | { |
11343788 | 4260 | dTHR; |
79072805 LW |
4261 | register CV *cv; |
4262 | char *name; | |
4263 | GV *gv; | |
a0d0e21e | 4264 | I32 ix; |
2d8e6c8d | 4265 | STRLEN n_a; |
79072805 | 4266 | |
11343788 | 4267 | if (o) |
2d8e6c8d | 4268 | name = SvPVx(cSVOPo->op_sv, n_a); |
79072805 LW |
4269 | else |
4270 | name = "STDOUT"; | |
85e6fe83 | 4271 | gv = gv_fetchpv(name,TRUE, SVt_PVFM); |
a5f75d66 | 4272 | GvMULTI_on(gv); |
79072805 | 4273 | if (cv = GvFORM(gv)) { |
599cee73 | 4274 | if (ckWARN(WARN_REDEFINE)) { |
3280af22 | 4275 | line_t oldline = PL_curcop->cop_line; |
79072805 | 4276 | |
3280af22 | 4277 | PL_curcop->cop_line = PL_copline; |
cea2e8a9 | 4278 | Perl_warner(aTHX_ WARN_REDEFINE, "Format %s redefined",name); |
3280af22 | 4279 | PL_curcop->cop_line = oldline; |
79072805 | 4280 | } |
8990e307 | 4281 | SvREFCNT_dec(cv); |
79072805 | 4282 | } |
3280af22 | 4283 | cv = PL_compcv; |
79072805 | 4284 | GvFORM(gv) = cv; |
44a8e56a | 4285 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
3280af22 | 4286 | CvFILEGV(cv) = PL_curcop->cop_filegv; |
79072805 | 4287 | |
3280af22 NIS |
4288 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { |
4289 | if (!SvPADMY(PL_curpad[ix]) && !SvIMMORTAL(PL_curpad[ix])) | |
4290 | SvPADTMP_on(PL_curpad[ix]); | |
a0d0e21e LW |
4291 | } |
4292 | ||
79072805 LW |
4293 | CvROOT(cv) = newUNOP(OP_LEAVEWRITE, 0, scalarseq(block)); |
4294 | CvSTART(cv) = LINKLIST(CvROOT(cv)); | |
4295 | CvROOT(cv)->op_next = 0; | |
4296 | peep(CvSTART(cv)); | |
11343788 | 4297 | op_free(o); |
3280af22 | 4298 | PL_copline = NOLINE; |
8990e307 | 4299 | LEAVE_SCOPE(floor); |
79072805 LW |
4300 | } |
4301 | ||
4302 | OP * | |
864dbfa3 | 4303 | Perl_newANONLIST(pTHX_ OP *o) |
79072805 | 4304 | { |
93a17b20 | 4305 | return newUNOP(OP_REFGEN, 0, |
11343788 | 4306 | mod(list(convert(OP_ANONLIST, 0, o)), OP_REFGEN)); |
79072805 LW |
4307 | } |
4308 | ||
4309 | OP * | |
864dbfa3 | 4310 | Perl_newANONHASH(pTHX_ OP *o) |
79072805 | 4311 | { |
93a17b20 | 4312 | return newUNOP(OP_REFGEN, 0, |
11343788 | 4313 | mod(list(convert(OP_ANONHASH, 0, o)), OP_REFGEN)); |
a0d0e21e LW |
4314 | } |
4315 | ||
4316 | OP * | |
864dbfa3 | 4317 | Perl_newANONSUB(pTHX_ I32 floor, OP *proto, OP *block) |
a0d0e21e LW |
4318 | { |
4319 | return newUNOP(OP_REFGEN, 0, | |
4633a7c4 | 4320 | newSVOP(OP_ANONCODE, 0, (SV*)newSUB(floor, 0, proto, block))); |
79072805 LW |
4321 | } |
4322 | ||
4323 | OP * | |
864dbfa3 | 4324 | Perl_oopsAV(pTHX_ OP *o) |
79072805 | 4325 | { |
ed6116ce LW |
4326 | switch (o->op_type) { |
4327 | case OP_PADSV: | |
4328 | o->op_type = OP_PADAV; | |
22c35a8c | 4329 | o->op_ppaddr = PL_ppaddr[OP_PADAV]; |
51e247a3 | 4330 | return ref(o, OP_RV2AV); |
ed6116ce LW |
4331 | |
4332 | case OP_RV2SV: | |
79072805 | 4333 | o->op_type = OP_RV2AV; |
22c35a8c | 4334 | o->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
79072805 | 4335 | ref(o, OP_RV2AV); |
ed6116ce LW |
4336 | break; |
4337 | ||
4338 | default: | |
0453d815 PM |
4339 | if (ckWARN_d(WARN_INTERNAL)) |
4340 | Perl_warner(aTHX_ WARN_INTERNAL, "oops: oopsAV"); | |
ed6116ce LW |
4341 | break; |
4342 | } | |
79072805 LW |
4343 | return o; |
4344 | } | |
4345 | ||
4346 | OP * | |
864dbfa3 | 4347 | Perl_oopsHV(pTHX_ OP *o) |
79072805 | 4348 | { |
0453d815 | 4349 | dTHR; |
0453d815 | 4350 | |
ed6116ce LW |
4351 | switch (o->op_type) { |
4352 | case OP_PADSV: | |
4353 | case OP_PADAV: | |
4354 | o->op_type = OP_PADHV; | |
22c35a8c | 4355 | o->op_ppaddr = PL_ppaddr[OP_PADHV]; |
51e247a3 | 4356 | return ref(o, OP_RV2HV); |
ed6116ce LW |
4357 | |
4358 | case OP_RV2SV: | |
4359 | case OP_RV2AV: | |
79072805 | 4360 | o->op_type = OP_RV2HV; |
22c35a8c | 4361 | o->op_ppaddr = PL_ppaddr[OP_RV2HV]; |
79072805 | 4362 | ref(o, OP_RV2HV); |
ed6116ce LW |
4363 | break; |
4364 | ||
4365 | default: | |
0453d815 PM |
4366 | if (ckWARN_d(WARN_INTERNAL)) |
4367 | Perl_warner(aTHX_ WARN_INTERNAL, "oops: oopsHV"); | |
ed6116ce LW |
4368 | break; |
4369 | } | |
79072805 LW |
4370 | return o; |
4371 | } | |
4372 | ||
4373 | OP * | |
864dbfa3 | 4374 | Perl_newAVREF(pTHX_ OP *o) |
79072805 | 4375 | { |
ed6116ce LW |
4376 | if (o->op_type == OP_PADANY) { |
4377 | o->op_type = OP_PADAV; | |
22c35a8c | 4378 | o->op_ppaddr = PL_ppaddr[OP_PADAV]; |
93a17b20 | 4379 | return o; |
ed6116ce | 4380 | } |
79072805 LW |
4381 | return newUNOP(OP_RV2AV, 0, scalar(o)); |
4382 | } | |
4383 | ||
4384 | OP * | |
864dbfa3 | 4385 | Perl_newGVREF(pTHX_ I32 type, OP *o) |
79072805 | 4386 | { |
82092f1d | 4387 | if (type == OP_MAPSTART || type == OP_GREPSTART || type == OP_SORT) |
a0d0e21e | 4388 | return newUNOP(OP_NULL, 0, o); |
748a9306 | 4389 | return ref(newUNOP(OP_RV2GV, OPf_REF, o), type); |
79072805 LW |
4390 | } |
4391 | ||
4392 | OP * | |
864dbfa3 | 4393 | Perl_newHVREF(pTHX_ OP *o) |
79072805 | 4394 | { |
ed6116ce LW |
4395 | if (o->op_type == OP_PADANY) { |
4396 | o->op_type = OP_PADHV; | |
22c35a8c | 4397 | o->op_ppaddr = PL_ppaddr[OP_PADHV]; |
93a17b20 | 4398 | return o; |
ed6116ce | 4399 | } |
79072805 LW |
4400 | return newUNOP(OP_RV2HV, 0, scalar(o)); |
4401 | } | |
4402 | ||
4403 | OP * | |
864dbfa3 | 4404 | Perl_oopsCV(pTHX_ OP *o) |
79072805 | 4405 | { |
cea2e8a9 | 4406 | Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__); |
79072805 LW |
4407 | /* STUB */ |
4408 | return o; | |
4409 | } | |
4410 | ||
4411 | OP * | |
864dbfa3 | 4412 | Perl_newCVREF(pTHX_ I32 flags, OP *o) |
79072805 | 4413 | { |
c07a80fd | 4414 | return newUNOP(OP_RV2CV, flags, scalar(o)); |
79072805 LW |
4415 | } |
4416 | ||
4417 | OP * | |
864dbfa3 | 4418 | Perl_newSVREF(pTHX_ OP *o) |
79072805 | 4419 | { |
ed6116ce LW |
4420 | if (o->op_type == OP_PADANY) { |
4421 | o->op_type = OP_PADSV; | |
22c35a8c | 4422 | o->op_ppaddr = PL_ppaddr[OP_PADSV]; |
93a17b20 | 4423 | return o; |
ed6116ce | 4424 | } |
224a4551 MB |
4425 | else if (o->op_type == OP_THREADSV && !(o->op_flags & OPpDONE_SVREF)) { |
4426 | o->op_flags |= OPpDONE_SVREF; | |
a863c7d1 | 4427 | return o; |
224a4551 | 4428 | } |
79072805 LW |
4429 | return newUNOP(OP_RV2SV, 0, scalar(o)); |
4430 | } | |
4431 | ||
4432 | /* Check routines. */ | |
4433 | ||
4434 | OP * | |
cea2e8a9 | 4435 | Perl_ck_anoncode(pTHX_ OP *o) |
5f05dabc | 4436 | { |
178c6305 CS |
4437 | PADOFFSET ix; |
4438 | SV* name; | |
4439 | ||
4440 | name = NEWSV(1106,0); | |
4441 | sv_upgrade(name, SVt_PVNV); | |
4442 | sv_setpvn(name, "&", 1); | |
4443 | SvIVX(name) = -1; | |
4444 | SvNVX(name) = 1; | |
5dc0d613 | 4445 | ix = pad_alloc(o->op_type, SVs_PADMY); |
3280af22 NIS |
4446 | av_store(PL_comppad_name, ix, name); |
4447 | av_store(PL_comppad, ix, cSVOPo->op_sv); | |
5dc0d613 MB |
4448 | SvPADMY_on(cSVOPo->op_sv); |
4449 | cSVOPo->op_sv = Nullsv; | |
4450 | cSVOPo->op_targ = ix; | |
4451 | return o; | |
5f05dabc | 4452 | } |
4453 | ||
4454 | OP * | |
cea2e8a9 | 4455 | Perl_ck_bitop(pTHX_ OP *o) |
55497cff | 4456 | { |
3280af22 | 4457 | o->op_private = PL_hints; |
5dc0d613 | 4458 | return o; |
55497cff | 4459 | } |
4460 | ||
4461 | OP * | |
cea2e8a9 | 4462 | Perl_ck_concat(pTHX_ OP *o) |
79072805 | 4463 | { |
11343788 MB |
4464 | if (cUNOPo->op_first->op_type == OP_CONCAT) |
4465 | o->op_flags |= OPf_STACKED; | |
4466 | return o; | |
79072805 LW |
4467 | } |
4468 | ||
4469 | OP * | |
cea2e8a9 | 4470 | Perl_ck_spair(pTHX_ OP *o) |
79072805 | 4471 | { |
11343788 | 4472 | if (o->op_flags & OPf_KIDS) { |
79072805 | 4473 | OP* newop; |
a0d0e21e | 4474 | OP* kid; |
5dc0d613 MB |
4475 | OPCODE type = o->op_type; |
4476 | o = modkids(ck_fun(o), type); | |
11343788 | 4477 | kid = cUNOPo->op_first; |
a0d0e21e LW |
4478 | newop = kUNOP->op_first->op_sibling; |
4479 | if (newop && | |
4480 | (newop->op_sibling || | |
22c35a8c | 4481 | !(PL_opargs[newop->op_type] & OA_RETSCALAR) || |
a0d0e21e LW |
4482 | newop->op_type == OP_PADAV || newop->op_type == OP_PADHV || |
4483 | newop->op_type == OP_RV2AV || newop->op_type == OP_RV2HV)) { | |
aeea060c | 4484 | |
11343788 | 4485 | return o; |
a0d0e21e LW |
4486 | } |
4487 | op_free(kUNOP->op_first); | |
4488 | kUNOP->op_first = newop; | |
4489 | } | |
22c35a8c | 4490 | o->op_ppaddr = PL_ppaddr[++o->op_type]; |
11343788 | 4491 | return ck_fun(o); |
a0d0e21e LW |
4492 | } |
4493 | ||
4494 | OP * | |
cea2e8a9 | 4495 | Perl_ck_delete(pTHX_ OP *o) |
a0d0e21e | 4496 | { |
11343788 | 4497 | o = ck_fun(o); |
5dc0d613 | 4498 | o->op_private = 0; |
11343788 MB |
4499 | if (o->op_flags & OPf_KIDS) { |
4500 | OP *kid = cUNOPo->op_first; | |
5f05dabc | 4501 | if (kid->op_type == OP_HSLICE) |
5dc0d613 | 4502 | o->op_private |= OPpSLICE; |
5f05dabc | 4503 | else if (kid->op_type != OP_HELEM) |
cea2e8a9 | 4504 | Perl_croak(aTHX_ "%s argument is not a HASH element or slice", |
22c35a8c | 4505 | PL_op_desc[o->op_type]); |
a0d0e21e | 4506 | null(kid); |
79072805 | 4507 | } |
11343788 | 4508 | return o; |
79072805 LW |
4509 | } |
4510 | ||
4511 | OP * | |
cea2e8a9 | 4512 | Perl_ck_eof(pTHX_ OP *o) |
79072805 | 4513 | { |
11343788 | 4514 | I32 type = o->op_type; |
79072805 | 4515 | |
11343788 MB |
4516 | if (o->op_flags & OPf_KIDS) { |
4517 | if (cLISTOPo->op_first->op_type == OP_STUB) { | |
4518 | op_free(o); | |
4519 | o = newUNOP(type, OPf_SPECIAL, | |
d58bf5aa | 4520 | newGVOP(OP_GV, 0, gv_fetchpv("main::ARGV", TRUE, SVt_PVAV))); |
8990e307 | 4521 | } |
11343788 | 4522 | return ck_fun(o); |
79072805 | 4523 | } |
11343788 | 4524 | return o; |
79072805 LW |
4525 | } |
4526 | ||
4527 | OP * | |
cea2e8a9 | 4528 | Perl_ck_eval(pTHX_ OP *o) |
79072805 | 4529 | { |
3280af22 | 4530 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 MB |
4531 | if (o->op_flags & OPf_KIDS) { |
4532 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
79072805 | 4533 | |
93a17b20 | 4534 | if (!kid) { |
11343788 MB |
4535 | o->op_flags &= ~OPf_KIDS; |
4536 | null(o); | |
79072805 LW |
4537 | } |
4538 | else if (kid->op_type == OP_LINESEQ) { | |
4539 | LOGOP *enter; | |
4540 | ||
11343788 MB |
4541 | kid->op_next = o->op_next; |
4542 | cUNOPo->op_first = 0; | |
4543 | op_free(o); | |
79072805 | 4544 | |
b7dc083c | 4545 | NewOp(1101, enter, 1, LOGOP); |
79072805 | 4546 | enter->op_type = OP_ENTERTRY; |
22c35a8c | 4547 | enter->op_ppaddr = PL_ppaddr[OP_ENTERTRY]; |
79072805 LW |
4548 | enter->op_private = 0; |
4549 | ||
4550 | /* establish postfix order */ | |
4551 | enter->op_next = (OP*)enter; | |
4552 | ||
11343788 MB |
4553 | o = prepend_elem(OP_LINESEQ, (OP*)enter, (OP*)kid); |
4554 | o->op_type = OP_LEAVETRY; | |
22c35a8c | 4555 | o->op_ppaddr = PL_ppaddr[OP_LEAVETRY]; |
11343788 MB |
4556 | enter->op_other = o; |
4557 | return o; | |
79072805 | 4558 | } |
c7cc6f1c | 4559 | else |
473986ff | 4560 | scalar((OP*)kid); |
79072805 LW |
4561 | } |
4562 | else { | |
11343788 | 4563 | op_free(o); |
54b9620d | 4564 | o = newUNOP(OP_ENTEREVAL, 0, newDEFSVOP()); |
79072805 | 4565 | } |
3280af22 | 4566 | o->op_targ = (PADOFFSET)PL_hints; |
11343788 | 4567 | return o; |
79072805 LW |
4568 | } |
4569 | ||
4570 | OP * | |
cea2e8a9 | 4571 | Perl_ck_exec(pTHX_ OP *o) |
79072805 LW |
4572 | { |
4573 | OP *kid; | |
11343788 MB |
4574 | if (o->op_flags & OPf_STACKED) { |
4575 | o = ck_fun(o); | |
4576 | kid = cUNOPo->op_first->op_sibling; | |
8990e307 LW |
4577 | if (kid->op_type == OP_RV2GV) |
4578 | null(kid); | |
79072805 | 4579 | } |
463ee0b2 | 4580 | else |
11343788 MB |
4581 | o = listkids(o); |
4582 | return o; | |
79072805 LW |
4583 | } |
4584 | ||
4585 | OP * | |
cea2e8a9 | 4586 | Perl_ck_exists(pTHX_ OP *o) |
5f05dabc | 4587 | { |
5196be3e MB |
4588 | o = ck_fun(o); |
4589 | if (o->op_flags & OPf_KIDS) { | |
4590 | OP *kid = cUNOPo->op_first; | |
5f05dabc | 4591 | if (kid->op_type != OP_HELEM) |
cea2e8a9 | 4592 | Perl_croak(aTHX_ "%s argument is not a HASH element", PL_op_desc[o->op_type]); |
5f05dabc | 4593 | null(kid); |
4594 | } | |
5196be3e | 4595 | return o; |
5f05dabc | 4596 | } |
4597 | ||
22c35a8c | 4598 | #if 0 |
5f05dabc | 4599 | OP * |
cea2e8a9 | 4600 | Perl_ck_gvconst(pTHX_ register OP *o) |
79072805 LW |
4601 | { |
4602 | o = fold_constants(o); | |
4603 | if (o->op_type == OP_CONST) | |
4604 | o->op_type = OP_GV; | |
4605 | return o; | |
4606 | } | |
22c35a8c | 4607 | #endif |
79072805 LW |
4608 | |
4609 | OP * | |
cea2e8a9 | 4610 | Perl_ck_rvconst(pTHX_ register OP *o) |
79072805 | 4611 | { |
11343788 MB |
4612 | dTHR; |
4613 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
85e6fe83 | 4614 | |
3280af22 | 4615 | o->op_private |= (PL_hints & HINT_STRICT_REFS); |
79072805 | 4616 | if (kid->op_type == OP_CONST) { |
44a8e56a | 4617 | char *name; |
4618 | int iscv; | |
4619 | GV *gv; | |
779c5bc9 | 4620 | SV *kidsv = kid->op_sv; |
2d8e6c8d | 4621 | STRLEN n_a; |
44a8e56a | 4622 | |
779c5bc9 GS |
4623 | /* Is it a constant from cv_const_sv()? */ |
4624 | if (SvROK(kidsv) && SvREADONLY(kidsv)) { | |
4625 | SV *rsv = SvRV(kidsv); | |
4626 | int svtype = SvTYPE(rsv); | |
4627 | char *badtype = Nullch; | |
4628 | ||
4629 | switch (o->op_type) { | |
4630 | case OP_RV2SV: | |
4631 | if (svtype > SVt_PVMG) | |
4632 | badtype = "a SCALAR"; | |
4633 | break; | |
4634 | case OP_RV2AV: | |
4635 | if (svtype != SVt_PVAV) | |
4636 | badtype = "an ARRAY"; | |
4637 | break; | |
4638 | case OP_RV2HV: | |
4639 | if (svtype != SVt_PVHV) { | |
4640 | if (svtype == SVt_PVAV) { /* pseudohash? */ | |
4641 | SV **ksv = av_fetch((AV*)rsv, 0, FALSE); | |
4642 | if (ksv && SvROK(*ksv) | |
4643 | && SvTYPE(SvRV(*ksv)) == SVt_PVHV) | |
4644 | { | |
4645 | break; | |
4646 | } | |
4647 | } | |
4648 | badtype = "a HASH"; | |
4649 | } | |
4650 | break; | |
4651 | case OP_RV2CV: | |
4652 | if (svtype != SVt_PVCV) | |
4653 | badtype = "a CODE"; | |
4654 | break; | |
4655 | } | |
4656 | if (badtype) | |
cea2e8a9 | 4657 | Perl_croak(aTHX_ "Constant is not %s reference", badtype); |
779c5bc9 GS |
4658 | return o; |
4659 | } | |
2d8e6c8d | 4660 | name = SvPV(kidsv, n_a); |
3280af22 | 4661 | if ((PL_hints & HINT_STRICT_REFS) && (kid->op_private & OPpCONST_BARE)) { |
44a8e56a | 4662 | char *badthing = Nullch; |
5dc0d613 | 4663 | switch (o->op_type) { |
44a8e56a | 4664 | case OP_RV2SV: |
4665 | badthing = "a SCALAR"; | |
4666 | break; | |
4667 | case OP_RV2AV: | |
4668 | badthing = "an ARRAY"; | |
4669 | break; | |
4670 | case OP_RV2HV: | |
4671 | badthing = "a HASH"; | |
4672 | break; | |
4673 | } | |
4674 | if (badthing) | |
cea2e8a9 | 4675 | Perl_croak(aTHX_ |
44a8e56a | 4676 | "Can't use bareword (\"%s\") as %s ref while \"strict refs\" in use", |
4677 | name, badthing); | |
4678 | } | |
93233ece CS |
4679 | /* |
4680 | * This is a little tricky. We only want to add the symbol if we | |
4681 | * didn't add it in the lexer. Otherwise we get duplicate strict | |
4682 | * warnings. But if we didn't add it in the lexer, we must at | |
4683 | * least pretend like we wanted to add it even if it existed before, | |
4684 | * or we get possible typo warnings. OPpCONST_ENTERED says | |
4685 | * whether the lexer already added THIS instance of this symbol. | |
4686 | */ | |
5196be3e | 4687 | iscv = (o->op_type == OP_RV2CV) * 2; |
93233ece | 4688 | do { |
44a8e56a | 4689 | gv = gv_fetchpv(name, |
748a9306 | 4690 | iscv | !(kid->op_private & OPpCONST_ENTERED), |
a0d0e21e LW |
4691 | iscv |
4692 | ? SVt_PVCV | |
11343788 | 4693 | : o->op_type == OP_RV2SV |
a0d0e21e | 4694 | ? SVt_PV |
11343788 | 4695 | : o->op_type == OP_RV2AV |
a0d0e21e | 4696 | ? SVt_PVAV |
11343788 | 4697 | : o->op_type == OP_RV2HV |
a0d0e21e LW |
4698 | ? SVt_PVHV |
4699 | : SVt_PVGV); | |
93233ece CS |
4700 | } while (!gv && !(kid->op_private & OPpCONST_ENTERED) && !iscv++); |
4701 | if (gv) { | |
4702 | kid->op_type = OP_GV; | |
4703 | SvREFCNT_dec(kid->op_sv); | |
4704 | kid->op_sv = SvREFCNT_inc(gv); | |
76cd736e | 4705 | kid->op_ppaddr = PL_ppaddr[OP_GV]; |
a0d0e21e | 4706 | } |
79072805 | 4707 | } |
11343788 | 4708 | return o; |
79072805 LW |
4709 | } |
4710 | ||
4711 | OP * | |
cea2e8a9 | 4712 | Perl_ck_ftst(pTHX_ OP *o) |
79072805 | 4713 | { |
11343788 MB |
4714 | dTHR; |
4715 | I32 type = o->op_type; | |
79072805 | 4716 | |
11343788 MB |
4717 | if (o->op_flags & OPf_REF) |
4718 | return o; | |
79072805 | 4719 | |
108ed793 | 4720 | if (o->op_flags & OPf_KIDS && cUNOPo->op_first->op_type != OP_STUB) { |
11343788 | 4721 | SVOP *kid = (SVOP*)cUNOPo->op_first; |
79072805 LW |
4722 | |
4723 | if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { | |
2d8e6c8d | 4724 | STRLEN n_a; |
a0d0e21e | 4725 | OP *newop = newGVOP(type, OPf_REF, |
2d8e6c8d | 4726 | gv_fetchpv(SvPVx(kid->op_sv, n_a), TRUE, SVt_PVIO)); |
11343788 | 4727 | op_free(o); |
79072805 LW |
4728 | return newop; |
4729 | } | |
4730 | } | |
4731 | else { | |
11343788 | 4732 | op_free(o); |
79072805 | 4733 | if (type == OP_FTTTY) |
fb73857a | 4734 | return newGVOP(type, OPf_REF, gv_fetchpv("main::STDIN", TRUE, |
85e6fe83 | 4735 | SVt_PVIO)); |
79072805 | 4736 | else |
54b9620d | 4737 | return newUNOP(type, 0, newDEFSVOP()); |
79072805 | 4738 | } |
11343788 | 4739 | return o; |
79072805 LW |
4740 | } |
4741 | ||
4742 | OP * | |
cea2e8a9 | 4743 | Perl_ck_fun(pTHX_ OP *o) |
79072805 | 4744 | { |
11343788 | 4745 | dTHR; |
79072805 LW |
4746 | register OP *kid; |
4747 | OP **tokid; | |
4748 | OP *sibl; | |
4749 | I32 numargs = 0; | |
11343788 | 4750 | int type = o->op_type; |
22c35a8c | 4751 | register I32 oa = PL_opargs[type] >> OASHIFT; |
aeea060c | 4752 | |
11343788 | 4753 | if (o->op_flags & OPf_STACKED) { |
79072805 LW |
4754 | if ((oa & OA_OPTIONAL) && (oa >> 4) && !((oa >> 4) & OA_OPTIONAL)) |
4755 | oa &= ~OA_OPTIONAL; | |
4756 | else | |
11343788 | 4757 | return no_fh_allowed(o); |
79072805 LW |
4758 | } |
4759 | ||
11343788 | 4760 | if (o->op_flags & OPf_KIDS) { |
2d8e6c8d | 4761 | STRLEN n_a; |
11343788 MB |
4762 | tokid = &cLISTOPo->op_first; |
4763 | kid = cLISTOPo->op_first; | |
8990e307 LW |
4764 | if (kid->op_type == OP_PUSHMARK || |
4765 | kid->op_type == OP_NULL && kid->op_targ == OP_PUSHMARK) | |
4766 | { | |
79072805 LW |
4767 | tokid = &kid->op_sibling; |
4768 | kid = kid->op_sibling; | |
4769 | } | |
22c35a8c | 4770 | if (!kid && PL_opargs[type] & OA_DEFGV) |
54b9620d | 4771 | *tokid = kid = newDEFSVOP(); |
79072805 LW |
4772 | |
4773 | while (oa && kid) { | |
4774 | numargs++; | |
4775 | sibl = kid->op_sibling; | |
4776 | switch (oa & 7) { | |
4777 | case OA_SCALAR: | |
62c18ce2 GS |
4778 | /* list seen where single (scalar) arg expected? */ |
4779 | if (numargs == 1 && !(oa >> 4) | |
4780 | && kid->op_type == OP_LIST && type != OP_SCALAR) | |
4781 | { | |
4782 | return too_many_arguments(o,PL_op_desc[type]); | |
4783 | } | |
79072805 LW |
4784 | scalar(kid); |
4785 | break; | |
4786 | case OA_LIST: | |
4787 | if (oa < 16) { | |
4788 | kid = 0; | |
4789 | continue; | |
4790 | } | |
4791 | else | |
4792 | list(kid); | |
4793 | break; | |
4794 | case OA_AVREF: | |
4795 | if (kid->op_type == OP_CONST && | |
62c18ce2 GS |
4796 | (kid->op_private & OPpCONST_BARE)) |
4797 | { | |
2d8e6c8d | 4798 | char *name = SvPVx(((SVOP*)kid)->op_sv, n_a); |
79072805 | 4799 | OP *newop = newAVREF(newGVOP(OP_GV, 0, |
85e6fe83 | 4800 | gv_fetchpv(name, TRUE, SVt_PVAV) )); |
599cee73 | 4801 | if (ckWARN(WARN_SYNTAX)) |
cf2093f6 JH |
4802 | #ifdef IV_IS_QUAD |
4803 | Perl_warner(aTHX_ WARN_SYNTAX, | |
4804 | "Array @%s missing the @ in argument %" PERL_PRId64 " of %s()", | |
4805 | name, (IV)numargs, PL_op_desc[type]); | |
4806 | #else | |
cea2e8a9 | 4807 | Perl_warner(aTHX_ WARN_SYNTAX, |
599cee73 | 4808 | "Array @%s missing the @ in argument %ld of %s()", |
22c35a8c | 4809 | name, (long)numargs, PL_op_desc[type]); |
cf2093f6 | 4810 | #endif |
79072805 LW |
4811 | op_free(kid); |
4812 | kid = newop; | |
4813 | kid->op_sibling = sibl; | |
4814 | *tokid = kid; | |
4815 | } | |
8990e307 | 4816 | else if (kid->op_type != OP_RV2AV && kid->op_type != OP_PADAV) |
35cd451c | 4817 | bad_type(numargs, "array", PL_op_desc[type], kid); |
a0d0e21e | 4818 | mod(kid, type); |
79072805 LW |
4819 | break; |
4820 | case OA_HVREF: | |
4821 | if (kid->op_type == OP_CONST && | |
62c18ce2 GS |
4822 | (kid->op_private & OPpCONST_BARE)) |
4823 | { | |
2d8e6c8d | 4824 | char *name = SvPVx(((SVOP*)kid)->op_sv, n_a); |
79072805 | 4825 | OP *newop = newHVREF(newGVOP(OP_GV, 0, |
85e6fe83 | 4826 | gv_fetchpv(name, TRUE, SVt_PVHV) )); |
599cee73 | 4827 | if (ckWARN(WARN_SYNTAX)) |
cf2093f6 JH |
4828 | #ifdef IV_IS_QUAD |
4829 | Perl_warner(aTHX_ WARN_SYNTAX, | |
4830 | "Hash %%%s missing the %% in argument %" PERL_PRId64 " of %s()", | |
4831 | name, (IV)numargs, PL_op_desc[type]); | |
4832 | #else | |
cea2e8a9 | 4833 | Perl_warner(aTHX_ WARN_SYNTAX, |
599cee73 | 4834 | "Hash %%%s missing the %% in argument %ld of %s()", |
22c35a8c | 4835 | name, (long)numargs, PL_op_desc[type]); |
cf2093f6 | 4836 | #endif |
79072805 LW |
4837 | op_free(kid); |
4838 | kid = newop; | |
4839 | kid->op_sibling = sibl; | |
4840 | *tokid = kid; | |
4841 | } | |
8990e307 | 4842 | else if (kid->op_type != OP_RV2HV && kid->op_type != OP_PADHV) |
35cd451c | 4843 | bad_type(numargs, "hash", PL_op_desc[type], kid); |
a0d0e21e | 4844 | mod(kid, type); |
79072805 LW |
4845 | break; |
4846 | case OA_CVREF: | |
4847 | { | |
a0d0e21e | 4848 | OP *newop = newUNOP(OP_NULL, 0, kid); |
79072805 LW |
4849 | kid->op_sibling = 0; |
4850 | linklist(kid); | |
4851 | newop->op_next = newop; | |
4852 | kid = newop; | |
4853 | kid->op_sibling = sibl; | |
4854 | *tokid = kid; | |
4855 | } | |
4856 | break; | |
4857 | case OA_FILEREF: | |
c340be78 | 4858 | if (kid->op_type != OP_GV && kid->op_type != OP_RV2GV) { |
79072805 | 4859 | if (kid->op_type == OP_CONST && |
62c18ce2 GS |
4860 | (kid->op_private & OPpCONST_BARE)) |
4861 | { | |
79072805 | 4862 | OP *newop = newGVOP(OP_GV, 0, |
2d8e6c8d | 4863 | gv_fetchpv(SvPVx(((SVOP*)kid)->op_sv, n_a), TRUE, |
85e6fe83 | 4864 | SVt_PVIO) ); |
79072805 LW |
4865 | op_free(kid); |
4866 | kid = newop; | |
4867 | } | |
1ea32a52 GS |
4868 | else if (kid->op_type == OP_READLINE) { |
4869 | /* neophyte patrol: open(<FH>), close(<FH>) etc. */ | |
4870 | bad_type(numargs, "HANDLE", PL_op_desc[o->op_type], kid); | |
4871 | } | |
79072805 | 4872 | else { |
35cd451c | 4873 | I32 flags = OPf_SPECIAL; |
a6c40364 | 4874 | I32 priv = 0; |
35cd451c | 4875 | /* is this op a FH constructor? */ |
853846ea | 4876 | if (is_handle_constructor(o,numargs)) { |
1d8d4d2a | 4877 | flags = 0; |
853846ea NIS |
4878 | /* Set a flag to tell rv2gv to vivify |
4879 | * need to "prove" flag does not mean something | |
4880 | * else already - NI-S 1999/05/07 | |
4881 | */ | |
a6c40364 | 4882 | priv = OPpDEREF; |
1d8d4d2a NIS |
4883 | #if 0 |
4884 | /* Helps with open($array[$n],...) | |
4885 | but is too simplistic - need to do selectively | |
4886 | */ | |
4887 | mod(kid,type); | |
4888 | #endif | |
853846ea | 4889 | } |
79072805 | 4890 | kid->op_sibling = 0; |
35cd451c | 4891 | kid = newUNOP(OP_RV2GV, flags, scalar(kid)); |
a6c40364 GS |
4892 | if (priv) { |
4893 | kid->op_private |= priv; | |
1d8d4d2a | 4894 | } |
79072805 LW |
4895 | } |
4896 | kid->op_sibling = sibl; | |
4897 | *tokid = kid; | |
4898 | } | |
4899 | scalar(kid); | |
4900 | break; | |
4901 | case OA_SCALARREF: | |
a0d0e21e | 4902 | mod(scalar(kid), type); |
79072805 LW |
4903 | break; |
4904 | } | |
4905 | oa >>= 4; | |
4906 | tokid = &kid->op_sibling; | |
4907 | kid = kid->op_sibling; | |
4908 | } | |
11343788 | 4909 | o->op_private |= numargs; |
79072805 | 4910 | if (kid) |
22c35a8c | 4911 | return too_many_arguments(o,PL_op_desc[o->op_type]); |
11343788 | 4912 | listkids(o); |
79072805 | 4913 | } |
22c35a8c | 4914 | else if (PL_opargs[type] & OA_DEFGV) { |
11343788 | 4915 | op_free(o); |
54b9620d | 4916 | return newUNOP(type, 0, newDEFSVOP()); |
a0d0e21e LW |
4917 | } |
4918 | ||
79072805 LW |
4919 | if (oa) { |
4920 | while (oa & OA_OPTIONAL) | |
4921 | oa >>= 4; | |
4922 | if (oa && oa != OA_LIST) | |
22c35a8c | 4923 | return too_few_arguments(o,PL_op_desc[o->op_type]); |
79072805 | 4924 | } |
11343788 | 4925 | return o; |
79072805 LW |
4926 | } |
4927 | ||
4928 | OP * | |
cea2e8a9 | 4929 | Perl_ck_glob(pTHX_ OP *o) |
79072805 | 4930 | { |
fb73857a | 4931 | GV *gv; |
4932 | ||
1f2bfc8a | 4933 | if ((o->op_flags & OPf_KIDS) && !cLISTOPo->op_first->op_sibling) |
54b9620d | 4934 | append_elem(OP_GLOB, o, newDEFSVOP()); |
fb73857a | 4935 | |
4936 | if (!((gv = gv_fetchpv("glob", FALSE, SVt_PVCV)) && GvIMPORTED_CV(gv))) | |
4937 | gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); | |
b1cb66bf | 4938 | |
4939 | if (gv && GvIMPORTED_CV(gv)) { | |
5196be3e | 4940 | append_elem(OP_GLOB, o, |
80252599 | 4941 | newSVOP(OP_CONST, 0, newSViv(PL_glob_index++))); |
1f2bfc8a | 4942 | o->op_type = OP_LIST; |
22c35a8c | 4943 | o->op_ppaddr = PL_ppaddr[OP_LIST]; |
1f2bfc8a | 4944 | cLISTOPo->op_first->op_type = OP_PUSHMARK; |
22c35a8c | 4945 | cLISTOPo->op_first->op_ppaddr = PL_ppaddr[OP_PUSHMARK]; |
1f2bfc8a | 4946 | o = newUNOP(OP_ENTERSUB, OPf_STACKED, |
aeea060c | 4947 | append_elem(OP_LIST, o, |
1f2bfc8a MB |
4948 | scalar(newUNOP(OP_RV2CV, 0, |
4949 | newGVOP(OP_GV, 0, gv))))); | |
d58bf5aa MB |
4950 | o = newUNOP(OP_NULL, 0, ck_subr(o)); |
4951 | o->op_targ = OP_GLOB; /* hint at what it used to be */ | |
4952 | return o; | |
b1cb66bf | 4953 | } |
4954 | gv = newGVgen("main"); | |
a0d0e21e | 4955 | gv_IOadd(gv); |
11343788 MB |
4956 | append_elem(OP_GLOB, o, newGVOP(OP_GV, 0, gv)); |
4957 | scalarkids(o); | |
4958 | return ck_fun(o); | |
79072805 LW |
4959 | } |
4960 | ||
4961 | OP * | |
cea2e8a9 | 4962 | Perl_ck_grep(pTHX_ OP *o) |
79072805 LW |
4963 | { |
4964 | LOGOP *gwop; | |
4965 | OP *kid; | |
11343788 | 4966 | OPCODE type = o->op_type == OP_GREPSTART ? OP_GREPWHILE : OP_MAPWHILE; |
79072805 | 4967 | |
22c35a8c | 4968 | o->op_ppaddr = PL_ppaddr[OP_GREPSTART]; |
b7dc083c | 4969 | NewOp(1101, gwop, 1, LOGOP); |
aeea060c | 4970 | |
11343788 | 4971 | if (o->op_flags & OPf_STACKED) { |
a0d0e21e | 4972 | OP* k; |
11343788 MB |
4973 | o = ck_sort(o); |
4974 | kid = cLISTOPo->op_first->op_sibling; | |
4975 | for (k = cLISTOPo->op_first->op_sibling->op_next; k; k = k->op_next) { | |
a0d0e21e LW |
4976 | kid = k; |
4977 | } | |
4978 | kid->op_next = (OP*)gwop; | |
11343788 | 4979 | o->op_flags &= ~OPf_STACKED; |
93a17b20 | 4980 | } |
11343788 | 4981 | kid = cLISTOPo->op_first->op_sibling; |
a0d0e21e LW |
4982 | if (type == OP_MAPWHILE) |
4983 | list(kid); | |
4984 | else | |
4985 | scalar(kid); | |
11343788 | 4986 | o = ck_fun(o); |
3280af22 | 4987 | if (PL_error_count) |
11343788 | 4988 | return o; |
aeea060c | 4989 | kid = cLISTOPo->op_first->op_sibling; |
79072805 | 4990 | if (kid->op_type != OP_NULL) |
cea2e8a9 | 4991 | Perl_croak(aTHX_ "panic: ck_grep"); |
79072805 LW |
4992 | kid = kUNOP->op_first; |
4993 | ||
a0d0e21e | 4994 | gwop->op_type = type; |
22c35a8c | 4995 | gwop->op_ppaddr = PL_ppaddr[type]; |
11343788 | 4996 | gwop->op_first = listkids(o); |
79072805 LW |
4997 | gwop->op_flags |= OPf_KIDS; |
4998 | gwop->op_private = 1; | |
4999 | gwop->op_other = LINKLIST(kid); | |
a0d0e21e | 5000 | gwop->op_targ = pad_alloc(type, SVs_PADTMP); |
79072805 LW |
5001 | kid->op_next = (OP*)gwop; |
5002 | ||
11343788 | 5003 | kid = cLISTOPo->op_first->op_sibling; |
a0d0e21e | 5004 | if (!kid || !kid->op_sibling) |
22c35a8c | 5005 | return too_few_arguments(o,PL_op_desc[o->op_type]); |
a0d0e21e LW |
5006 | for (kid = kid->op_sibling; kid; kid = kid->op_sibling) |
5007 | mod(kid, OP_GREPSTART); | |
5008 | ||
79072805 LW |
5009 | return (OP*)gwop; |
5010 | } | |
5011 | ||
5012 | OP * | |
cea2e8a9 | 5013 | Perl_ck_index(pTHX_ OP *o) |
79072805 | 5014 | { |
11343788 MB |
5015 | if (o->op_flags & OPf_KIDS) { |
5016 | OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
0b71040e LW |
5017 | if (kid) |
5018 | kid = kid->op_sibling; /* get past "big" */ | |
79072805 | 5019 | if (kid && kid->op_type == OP_CONST) |
2779dcf1 | 5020 | fbm_compile(((SVOP*)kid)->op_sv, 0); |
79072805 | 5021 | } |
11343788 | 5022 | return ck_fun(o); |
79072805 LW |
5023 | } |
5024 | ||
5025 | OP * | |
cea2e8a9 | 5026 | Perl_ck_lengthconst(pTHX_ OP *o) |
79072805 LW |
5027 | { |
5028 | /* XXX length optimization goes here */ | |
11343788 | 5029 | return ck_fun(o); |
79072805 LW |
5030 | } |
5031 | ||
5032 | OP * | |
cea2e8a9 | 5033 | Perl_ck_lfun(pTHX_ OP *o) |
79072805 | 5034 | { |
5dc0d613 MB |
5035 | OPCODE type = o->op_type; |
5036 | return modkids(ck_fun(o), type); | |
79072805 LW |
5037 | } |
5038 | ||
5039 | OP * | |
cea2e8a9 | 5040 | Perl_ck_defined(pTHX_ OP *o) /* 19990527 MJD */ |
69794302 | 5041 | { |
20ce7b12 | 5042 | dTHR; |
d0334bed GS |
5043 | if ((o->op_flags & OPf_KIDS) && ckWARN(WARN_DEPRECATED)) { |
5044 | switch (cUNOPo->op_first->op_type) { | |
5045 | case OP_RV2AV: | |
5046 | case OP_PADAV: | |
5047 | case OP_AASSIGN: /* Is this a good idea? */ | |
5048 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
f10b0346 | 5049 | "defined(@array) is deprecated"); |
d0334bed GS |
5050 | Perl_warner(aTHX_ WARN_DEPRECATED, |
5051 | "(Maybe you should just omit the defined()?)\n"); | |
69794302 | 5052 | break; |
d0334bed GS |
5053 | case OP_RV2HV: |
5054 | case OP_PADHV: | |
5055 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
f10b0346 | 5056 | "defined(%hash) is deprecated"); |
d0334bed GS |
5057 | Perl_warner(aTHX_ WARN_DEPRECATED, |
5058 | "(Maybe you should just omit the defined()?)\n"); | |
5059 | break; | |
5060 | default: | |
5061 | /* no warning */ | |
5062 | break; | |
5063 | } | |
69794302 MJD |
5064 | } |
5065 | return ck_rfun(o); | |
5066 | } | |
5067 | ||
5068 | OP * | |
cea2e8a9 | 5069 | Perl_ck_rfun(pTHX_ OP *o) |
8990e307 | 5070 | { |
5dc0d613 MB |
5071 | OPCODE type = o->op_type; |
5072 | return refkids(ck_fun(o), type); | |
8990e307 LW |
5073 | } |
5074 | ||
5075 | OP * | |
cea2e8a9 | 5076 | Perl_ck_listiob(pTHX_ OP *o) |
79072805 LW |
5077 | { |
5078 | register OP *kid; | |
aeea060c | 5079 | |
11343788 | 5080 | kid = cLISTOPo->op_first; |
79072805 | 5081 | if (!kid) { |
11343788 MB |
5082 | o = force_list(o); |
5083 | kid = cLISTOPo->op_first; | |
79072805 LW |
5084 | } |
5085 | if (kid->op_type == OP_PUSHMARK) | |
5086 | kid = kid->op_sibling; | |
11343788 | 5087 | if (kid && o->op_flags & OPf_STACKED) |
79072805 LW |
5088 | kid = kid->op_sibling; |
5089 | else if (kid && !kid->op_sibling) { /* print HANDLE; */ | |
5090 | if (kid->op_type == OP_CONST && kid->op_private & OPpCONST_BARE) { | |
11343788 | 5091 | o->op_flags |= OPf_STACKED; /* make it a filehandle */ |
748a9306 | 5092 | kid = newUNOP(OP_RV2GV, OPf_REF, scalar(kid)); |
11343788 MB |
5093 | cLISTOPo->op_first->op_sibling = kid; |
5094 | cLISTOPo->op_last = kid; | |
79072805 LW |
5095 | kid = kid->op_sibling; |
5096 | } | |
5097 | } | |
5098 | ||
5099 | if (!kid) | |
54b9620d | 5100 | append_elem(o->op_type, o, newDEFSVOP()); |
79072805 | 5101 | |
5dc0d613 | 5102 | o = listkids(o); |
bbce6d69 | 5103 | |
5dc0d613 | 5104 | o->op_private = 0; |
36477c24 | 5105 | #ifdef USE_LOCALE |
3280af22 | 5106 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5107 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5108 | #endif |
5109 | ||
5dc0d613 | 5110 | return o; |
bbce6d69 | 5111 | } |
5112 | ||
5113 | OP * | |
cea2e8a9 | 5114 | Perl_ck_fun_locale(pTHX_ OP *o) |
bbce6d69 | 5115 | { |
5dc0d613 | 5116 | o = ck_fun(o); |
bbce6d69 | 5117 | |
5dc0d613 | 5118 | o->op_private = 0; |
36477c24 | 5119 | #ifdef USE_LOCALE |
3280af22 | 5120 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5121 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5122 | #endif |
5123 | ||
5dc0d613 | 5124 | return o; |
bbce6d69 | 5125 | } |
5126 | ||
5127 | OP * | |
b162f9ea IZ |
5128 | Perl_ck_sassign(pTHX_ OP *o) |
5129 | { | |
5130 | OP *kid = cLISTOPo->op_first; | |
5131 | /* has a disposable target? */ | |
5132 | if ((PL_opargs[kid->op_type] & OA_TARGLEX) | |
5133 | && !(kid->op_flags & OPf_STACKED)) | |
5134 | { | |
5135 | OP *kkid = kid->op_sibling; | |
5136 | ||
5137 | /* Can just relocate the target. */ | |
5138 | if (kkid && kkid->op_type == OP_PADSV) { | |
5139 | /* Concat has problems if target is equal to right arg. */ | |
5140 | if (kid->op_type == OP_CONCAT | |
5141 | && kLISTOP->op_first->op_sibling->op_type == OP_PADSV | |
5142 | && kLISTOP->op_first->op_sibling->op_targ == kkid->op_targ) | |
5143 | { | |
5144 | return o; | |
5145 | } | |
5146 | kid->op_targ = kkid->op_targ; | |
5147 | /* Now we do not need PADSV and SASSIGN. */ | |
5148 | kid->op_sibling = o->op_sibling; /* NULL */ | |
5149 | cLISTOPo->op_first = NULL; | |
5150 | op_free(o); | |
5151 | op_free(kkid); | |
5152 | kid->op_private |= OPpTARGET_MY; /* Used for context settings */ | |
5153 | return kid; | |
5154 | } | |
5155 | } | |
5156 | return o; | |
5157 | } | |
5158 | ||
5159 | OP * | |
cea2e8a9 | 5160 | Perl_ck_scmp(pTHX_ OP *o) |
bbce6d69 | 5161 | { |
5dc0d613 | 5162 | o->op_private = 0; |
36477c24 | 5163 | #ifdef USE_LOCALE |
3280af22 | 5164 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5165 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5166 | #endif |
36477c24 | 5167 | |
5dc0d613 | 5168 | return o; |
79072805 LW |
5169 | } |
5170 | ||
5171 | OP * | |
cea2e8a9 | 5172 | Perl_ck_match(pTHX_ OP *o) |
79072805 | 5173 | { |
5dc0d613 | 5174 | o->op_private |= OPpRUNTIME; |
11343788 | 5175 | return o; |
79072805 LW |
5176 | } |
5177 | ||
5178 | OP * | |
f5d5a27c CS |
5179 | Perl_ck_method(pTHX_ OP *o) |
5180 | { | |
5181 | OP *kid = cUNOPo->op_first; | |
5182 | if (kid->op_type == OP_CONST) { | |
5183 | SV* sv = kSVOP->op_sv; | |
5184 | if (!(strchr(SvPVX(sv), ':') || strchr(SvPVX(sv), '\''))) { | |
5185 | OP *cmop; | |
5186 | sv_upgrade(sv, SVt_PVIV); | |
5187 | SvIOK_on(sv); | |
5188 | PERL_HASH(SvUVX(sv), SvPVX(sv), SvCUR(sv)); | |
5189 | cmop = newSVOP(OP_METHOD_NAMED, 0, sv); | |
5190 | kSVOP->op_sv = Nullsv; | |
5191 | op_free(o); | |
5192 | return cmop; | |
5193 | } | |
5194 | } | |
5195 | return o; | |
5196 | } | |
5197 | ||
5198 | OP * | |
cea2e8a9 | 5199 | Perl_ck_null(pTHX_ OP *o) |
79072805 | 5200 | { |
11343788 | 5201 | return o; |
79072805 LW |
5202 | } |
5203 | ||
5204 | OP * | |
cea2e8a9 | 5205 | Perl_ck_repeat(pTHX_ OP *o) |
79072805 | 5206 | { |
11343788 MB |
5207 | if (cBINOPo->op_first->op_flags & OPf_PARENS) { |
5208 | o->op_private |= OPpREPEAT_DOLIST; | |
5209 | cBINOPo->op_first = force_list(cBINOPo->op_first); | |
79072805 LW |
5210 | } |
5211 | else | |
11343788 MB |
5212 | scalar(o); |
5213 | return o; | |
79072805 LW |
5214 | } |
5215 | ||
5216 | OP * | |
cea2e8a9 | 5217 | Perl_ck_require(pTHX_ OP *o) |
8990e307 | 5218 | { |
11343788 MB |
5219 | if (o->op_flags & OPf_KIDS) { /* Shall we supply missing .pm? */ |
5220 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
8990e307 LW |
5221 | |
5222 | if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { | |
8990e307 | 5223 | char *s; |
a0d0e21e LW |
5224 | for (s = SvPVX(kid->op_sv); *s; s++) { |
5225 | if (*s == ':' && s[1] == ':') { | |
5226 | *s = '/'; | |
1aef975c | 5227 | Move(s+2, s+1, strlen(s+2)+1, char); |
a0d0e21e LW |
5228 | --SvCUR(kid->op_sv); |
5229 | } | |
8990e307 | 5230 | } |
a0d0e21e | 5231 | sv_catpvn(kid->op_sv, ".pm", 3); |
8990e307 LW |
5232 | } |
5233 | } | |
11343788 | 5234 | return ck_fun(o); |
8990e307 LW |
5235 | } |
5236 | ||
22c35a8c | 5237 | #if 0 |
8990e307 | 5238 | OP * |
cea2e8a9 | 5239 | Perl_ck_retarget(pTHX_ OP *o) |
79072805 | 5240 | { |
cea2e8a9 | 5241 | Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__); |
79072805 | 5242 | /* STUB */ |
11343788 | 5243 | return o; |
79072805 | 5244 | } |
22c35a8c | 5245 | #endif |
79072805 LW |
5246 | |
5247 | OP * | |
cea2e8a9 | 5248 | Perl_ck_select(pTHX_ OP *o) |
79072805 | 5249 | { |
c07a80fd | 5250 | OP* kid; |
11343788 MB |
5251 | if (o->op_flags & OPf_KIDS) { |
5252 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
2304df62 | 5253 | if (kid && kid->op_sibling) { |
11343788 | 5254 | o->op_type = OP_SSELECT; |
22c35a8c | 5255 | o->op_ppaddr = PL_ppaddr[OP_SSELECT]; |
11343788 MB |
5256 | o = ck_fun(o); |
5257 | return fold_constants(o); | |
79072805 LW |
5258 | } |
5259 | } | |
11343788 MB |
5260 | o = ck_fun(o); |
5261 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
c07a80fd | 5262 | if (kid && kid->op_type == OP_RV2GV) |
5263 | kid->op_private &= ~HINT_STRICT_REFS; | |
11343788 | 5264 | return o; |
79072805 LW |
5265 | } |
5266 | ||
5267 | OP * | |
cea2e8a9 | 5268 | Perl_ck_shift(pTHX_ OP *o) |
79072805 | 5269 | { |
11343788 | 5270 | I32 type = o->op_type; |
79072805 | 5271 | |
11343788 | 5272 | if (!(o->op_flags & OPf_KIDS)) { |
6d4ff0d2 MB |
5273 | OP *argop; |
5274 | ||
11343788 | 5275 | op_free(o); |
6d4ff0d2 | 5276 | #ifdef USE_THREADS |
533c011a | 5277 | if (!CvUNIQUE(PL_compcv)) { |
6d4ff0d2 | 5278 | argop = newOP(OP_PADAV, OPf_REF); |
6b88bc9c | 5279 | argop->op_targ = 0; /* PL_curpad[0] is @_ */ |
6d4ff0d2 MB |
5280 | } |
5281 | else { | |
5282 | argop = newUNOP(OP_RV2AV, 0, | |
5283 | scalar(newGVOP(OP_GV, 0, | |
5284 | gv_fetchpv("ARGV", TRUE, SVt_PVAV)))); | |
5285 | } | |
5286 | #else | |
5287 | argop = newUNOP(OP_RV2AV, 0, | |
3280af22 NIS |
5288 | scalar(newGVOP(OP_GV, 0, !CvUNIQUE(PL_compcv) ? |
5289 | PL_defgv : gv_fetchpv("ARGV", TRUE, SVt_PVAV)))); | |
6d4ff0d2 MB |
5290 | #endif /* USE_THREADS */ |
5291 | return newUNOP(type, 0, scalar(argop)); | |
79072805 | 5292 | } |
11343788 | 5293 | return scalar(modkids(ck_fun(o), type)); |
79072805 LW |
5294 | } |
5295 | ||
5296 | OP * | |
cea2e8a9 | 5297 | Perl_ck_sort(pTHX_ OP *o) |
79072805 | 5298 | { |
5dc0d613 | 5299 | o->op_private = 0; |
36477c24 | 5300 | #ifdef USE_LOCALE |
3280af22 | 5301 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5302 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5303 | #endif |
5304 | ||
9ea6e965 | 5305 | if (o->op_type == OP_SORT && o->op_flags & OPf_STACKED) |
51a19bc0 | 5306 | simplify_sort(o); |
9c007264 | 5307 | if (o->op_flags & OPf_STACKED) { /* may have been cleared */ |
11343788 | 5308 | OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
463ee0b2 | 5309 | OP *k; |
82092f1d | 5310 | kid = kUNOP->op_first; /* get past null */ |
79072805 | 5311 | |
463ee0b2 | 5312 | if (kid->op_type == OP_SCOPE || kid->op_type == OP_LEAVE) { |
79072805 | 5313 | linklist(kid); |
463ee0b2 LW |
5314 | if (kid->op_type == OP_SCOPE) { |
5315 | k = kid->op_next; | |
5316 | kid->op_next = 0; | |
79072805 | 5317 | } |
463ee0b2 | 5318 | else if (kid->op_type == OP_LEAVE) { |
11343788 | 5319 | if (o->op_type == OP_SORT) { |
748a9306 LW |
5320 | null(kid); /* wipe out leave */ |
5321 | kid->op_next = kid; | |
463ee0b2 | 5322 | |
748a9306 LW |
5323 | for (k = kLISTOP->op_first->op_next; k; k = k->op_next) { |
5324 | if (k->op_next == kid) | |
5325 | k->op_next = 0; | |
5326 | } | |
463ee0b2 | 5327 | } |
748a9306 LW |
5328 | else |
5329 | kid->op_next = 0; /* just disconnect the leave */ | |
a0d0e21e | 5330 | k = kLISTOP->op_first; |
463ee0b2 | 5331 | } |
a0d0e21e LW |
5332 | peep(k); |
5333 | ||
11343788 | 5334 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
11343788 | 5335 | if (o->op_type == OP_SORT) |
a0d0e21e LW |
5336 | kid->op_next = kid; |
5337 | else | |
5338 | kid->op_next = k; | |
11343788 | 5339 | o->op_flags |= OPf_SPECIAL; |
79072805 | 5340 | } |
c6e96bcb GS |
5341 | else if (kid->op_type == OP_RV2SV || kid->op_type == OP_PADSV) |
5342 | null(cLISTOPo->op_first->op_sibling); | |
79072805 | 5343 | } |
bbce6d69 | 5344 | |
11343788 | 5345 | return o; |
79072805 | 5346 | } |
bda4119b GS |
5347 | |
5348 | STATIC void | |
cea2e8a9 | 5349 | S_simplify_sort(pTHX_ OP *o) |
9c007264 | 5350 | { |
51a19bc0 | 5351 | dTHR; |
9c007264 JH |
5352 | register OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
5353 | OP *k; | |
5354 | int reversed; | |
5355 | if (!(o->op_flags & OPf_STACKED)) | |
5356 | return; | |
9ea6e965 GS |
5357 | GvMULTI_on(gv_fetchpv("a", TRUE, SVt_PV)); |
5358 | GvMULTI_on(gv_fetchpv("b", TRUE, SVt_PV)); | |
82092f1d | 5359 | kid = kUNOP->op_first; /* get past null */ |
9c007264 JH |
5360 | if (kid->op_type != OP_SCOPE) |
5361 | return; | |
5362 | kid = kLISTOP->op_last; /* get past scope */ | |
5363 | switch(kid->op_type) { | |
5364 | case OP_NCMP: | |
5365 | case OP_I_NCMP: | |
5366 | case OP_SCMP: | |
5367 | break; | |
5368 | default: | |
5369 | return; | |
5370 | } | |
5371 | k = kid; /* remember this node*/ | |
5372 | if (kBINOP->op_first->op_type != OP_RV2SV) | |
5373 | return; | |
5374 | kid = kBINOP->op_first; /* get past cmp */ | |
5375 | if (kUNOP->op_first->op_type != OP_GV) | |
5376 | return; | |
5377 | kid = kUNOP->op_first; /* get past rv2sv */ | |
5378 | if (GvSTASH(kGVOP->op_gv) != PL_curstash) | |
5379 | return; | |
5380 | if (strEQ(GvNAME(kGVOP->op_gv), "a")) | |
5381 | reversed = 0; | |
5382 | else if(strEQ(GvNAME(kGVOP->op_gv), "b")) | |
5383 | reversed = 1; | |
5384 | else | |
5385 | return; | |
5386 | kid = k; /* back to cmp */ | |
5387 | if (kBINOP->op_last->op_type != OP_RV2SV) | |
5388 | return; | |
5389 | kid = kBINOP->op_last; /* down to 2nd arg */ | |
5390 | if (kUNOP->op_first->op_type != OP_GV) | |
5391 | return; | |
5392 | kid = kUNOP->op_first; /* get past rv2sv */ | |
5393 | if (GvSTASH(kGVOP->op_gv) != PL_curstash | |
5394 | || ( reversed | |
5395 | ? strNE(GvNAME(kGVOP->op_gv), "a") | |
5396 | : strNE(GvNAME(kGVOP->op_gv), "b"))) | |
5397 | return; | |
5398 | o->op_flags &= ~(OPf_STACKED | OPf_SPECIAL); | |
5399 | if (reversed) | |
5400 | o->op_private |= OPpSORT_REVERSE; | |
5401 | if (k->op_type == OP_NCMP) | |
5402 | o->op_private |= OPpSORT_NUMERIC; | |
5403 | if (k->op_type == OP_I_NCMP) | |
5404 | o->op_private |= OPpSORT_NUMERIC | OPpSORT_INTEGER; | |
5405 | op_free(cLISTOPo->op_first->op_sibling); /* delete comparison block */ | |
5406 | cLISTOPo->op_first->op_sibling = cLISTOPo->op_last; | |
5407 | cLISTOPo->op_children = 1; | |
5408 | } | |
79072805 LW |
5409 | |
5410 | OP * | |
cea2e8a9 | 5411 | Perl_ck_split(pTHX_ OP *o) |
79072805 LW |
5412 | { |
5413 | register OP *kid; | |
aeea060c | 5414 | |
11343788 MB |
5415 | if (o->op_flags & OPf_STACKED) |
5416 | return no_fh_allowed(o); | |
79072805 | 5417 | |
11343788 | 5418 | kid = cLISTOPo->op_first; |
8990e307 | 5419 | if (kid->op_type != OP_NULL) |
cea2e8a9 | 5420 | Perl_croak(aTHX_ "panic: ck_split"); |
8990e307 | 5421 | kid = kid->op_sibling; |
11343788 MB |
5422 | op_free(cLISTOPo->op_first); |
5423 | cLISTOPo->op_first = kid; | |
85e6fe83 | 5424 | if (!kid) { |
79cb57f6 | 5425 | cLISTOPo->op_first = kid = newSVOP(OP_CONST, 0, newSVpvn(" ", 1)); |
11343788 | 5426 | cLISTOPo->op_last = kid; /* There was only one element previously */ |
85e6fe83 | 5427 | } |
79072805 LW |
5428 | |
5429 | if (kid->op_type != OP_MATCH) { | |
5430 | OP *sibl = kid->op_sibling; | |
463ee0b2 | 5431 | kid->op_sibling = 0; |
79072805 | 5432 | kid = pmruntime( newPMOP(OP_MATCH, OPf_SPECIAL), kid, Nullop); |
11343788 MB |
5433 | if (cLISTOPo->op_first == cLISTOPo->op_last) |
5434 | cLISTOPo->op_last = kid; | |
5435 | cLISTOPo->op_first = kid; | |
79072805 LW |
5436 | kid->op_sibling = sibl; |
5437 | } | |
5438 | ||
5439 | kid->op_type = OP_PUSHRE; | |
22c35a8c | 5440 | kid->op_ppaddr = PL_ppaddr[OP_PUSHRE]; |
79072805 LW |
5441 | scalar(kid); |
5442 | ||
5443 | if (!kid->op_sibling) | |
54b9620d | 5444 | append_elem(OP_SPLIT, o, newDEFSVOP()); |
79072805 LW |
5445 | |
5446 | kid = kid->op_sibling; | |
5447 | scalar(kid); | |
5448 | ||
5449 | if (!kid->op_sibling) | |
11343788 | 5450 | append_elem(OP_SPLIT, o, newSVOP(OP_CONST, 0, newSViv(0))); |
79072805 LW |
5451 | |
5452 | kid = kid->op_sibling; | |
5453 | scalar(kid); | |
5454 | ||
5455 | if (kid->op_sibling) | |
22c35a8c | 5456 | return too_many_arguments(o,PL_op_desc[o->op_type]); |
79072805 | 5457 | |
11343788 | 5458 | return o; |
79072805 LW |
5459 | } |
5460 | ||
5461 | OP * | |
cea2e8a9 | 5462 | Perl_ck_subr(pTHX_ OP *o) |
79072805 | 5463 | { |
11343788 MB |
5464 | dTHR; |
5465 | OP *prev = ((cUNOPo->op_first->op_sibling) | |
5466 | ? cUNOPo : ((UNOP*)cUNOPo->op_first))->op_first; | |
5467 | OP *o2 = prev->op_sibling; | |
4633a7c4 LW |
5468 | OP *cvop; |
5469 | char *proto = 0; | |
5470 | CV *cv = 0; | |
46fc3d4c | 5471 | GV *namegv = 0; |
4633a7c4 LW |
5472 | int optional = 0; |
5473 | I32 arg = 0; | |
2d8e6c8d | 5474 | STRLEN n_a; |
4633a7c4 | 5475 | |
11343788 | 5476 | for (cvop = o2; cvop->op_sibling; cvop = cvop->op_sibling) ; |
4633a7c4 LW |
5477 | if (cvop->op_type == OP_RV2CV) { |
5478 | SVOP* tmpop; | |
11343788 | 5479 | o->op_private |= (cvop->op_private & OPpENTERSUB_AMPER); |
4633a7c4 LW |
5480 | null(cvop); /* disable rv2cv */ |
5481 | tmpop = (SVOP*)((UNOP*)cvop)->op_first; | |
76cd736e | 5482 | if (tmpop->op_type == OP_GV && !(o->op_private & OPpENTERSUB_AMPER)) { |
8ebc5c01 | 5483 | cv = GvCVu(tmpop->op_sv); |
76cd736e GS |
5484 | if (!cv) |
5485 | tmpop->op_private |= OPpEARLY_CV; | |
5486 | else if (SvPOK(cv)) { | |
46fc3d4c | 5487 | namegv = CvANON(cv) ? (GV*)tmpop->op_sv : CvGV(cv); |
2d8e6c8d | 5488 | proto = SvPV((SV*)cv, n_a); |
46fc3d4c | 5489 | } |
4633a7c4 LW |
5490 | } |
5491 | } | |
f5d5a27c | 5492 | else if (cvop->op_type == OP_METHOD || cvop->op_type == OP_METHOD_NAMED) { |
7a52d87a GS |
5493 | if (o2->op_type == OP_CONST) |
5494 | o2->op_private &= ~OPpCONST_STRICT; | |
58a40671 GS |
5495 | else if (o2->op_type == OP_LIST) { |
5496 | OP *o = ((UNOP*)o2)->op_first->op_sibling; | |
5497 | if (o && o->op_type == OP_CONST) | |
5498 | o->op_private &= ~OPpCONST_STRICT; | |
5499 | } | |
7a52d87a | 5500 | } |
3280af22 NIS |
5501 | o->op_private |= (PL_hints & HINT_STRICT_REFS); |
5502 | if (PERLDB_SUB && PL_curstash != PL_debstash) | |
11343788 MB |
5503 | o->op_private |= OPpENTERSUB_DB; |
5504 | while (o2 != cvop) { | |
4633a7c4 LW |
5505 | if (proto) { |
5506 | switch (*proto) { | |
5507 | case '\0': | |
5dc0d613 | 5508 | return too_many_arguments(o, gv_ename(namegv)); |
4633a7c4 LW |
5509 | case ';': |
5510 | optional = 1; | |
5511 | proto++; | |
5512 | continue; | |
5513 | case '$': | |
5514 | proto++; | |
5515 | arg++; | |
11343788 | 5516 | scalar(o2); |
4633a7c4 LW |
5517 | break; |
5518 | case '%': | |
5519 | case '@': | |
11343788 | 5520 | list(o2); |
4633a7c4 LW |
5521 | arg++; |
5522 | break; | |
5523 | case '&': | |
5524 | proto++; | |
5525 | arg++; | |
11343788 | 5526 | if (o2->op_type != OP_REFGEN && o2->op_type != OP_UNDEF) |
5dc0d613 | 5527 | bad_type(arg, "block", gv_ename(namegv), o2); |
4633a7c4 LW |
5528 | break; |
5529 | case '*': | |
2ba6ecf4 | 5530 | /* '*' allows any scalar type, including bareword */ |
4633a7c4 LW |
5531 | proto++; |
5532 | arg++; | |
11343788 | 5533 | if (o2->op_type == OP_RV2GV) |
2ba6ecf4 | 5534 | goto wrapref; /* autoconvert GLOB -> GLOBref */ |
7a52d87a GS |
5535 | else if (o2->op_type == OP_CONST) |
5536 | o2->op_private &= ~OPpCONST_STRICT; | |
9675f7ac GS |
5537 | else if (o2->op_type == OP_ENTERSUB) { |
5538 | /* accidental subroutine, revert to bareword */ | |
5539 | OP *gvop = ((UNOP*)o2)->op_first; | |
5540 | if (gvop && gvop->op_type == OP_NULL) { | |
5541 | gvop = ((UNOP*)gvop)->op_first; | |
5542 | if (gvop) { | |
5543 | for (; gvop->op_sibling; gvop = gvop->op_sibling) | |
5544 | ; | |
5545 | if (gvop && | |
5546 | (gvop->op_private & OPpENTERSUB_NOPAREN) && | |
5547 | (gvop = ((UNOP*)gvop)->op_first) && | |
5548 | gvop->op_type == OP_GV) | |
5549 | { | |
5550 | GV *gv = (GV*)((SVOP*)gvop)->op_sv; | |
5551 | OP *sibling = o2->op_sibling; | |
2692f720 | 5552 | SV *n = newSVpvn("",0); |
9675f7ac | 5553 | op_free(o2); |
2692f720 GS |
5554 | gv_fullname3(n, gv, ""); |
5555 | if (SvCUR(n)>6 && strnEQ(SvPVX(n),"main::",6)) | |
5556 | sv_chop(n, SvPVX(n)+6); | |
5557 | o2 = newSVOP(OP_CONST, 0, n); | |
9675f7ac GS |
5558 | prev->op_sibling = o2; |
5559 | o2->op_sibling = sibling; | |
5560 | } | |
5561 | } | |
5562 | } | |
5563 | } | |
2ba6ecf4 GS |
5564 | scalar(o2); |
5565 | break; | |
4633a7c4 LW |
5566 | case '\\': |
5567 | proto++; | |
5568 | arg++; | |
5569 | switch (*proto++) { | |
5570 | case '*': | |
11343788 | 5571 | if (o2->op_type != OP_RV2GV) |
5dc0d613 | 5572 | bad_type(arg, "symbol", gv_ename(namegv), o2); |
4633a7c4 LW |
5573 | goto wrapref; |
5574 | case '&': | |
11343788 | 5575 | if (o2->op_type != OP_RV2CV) |
5dc0d613 | 5576 | bad_type(arg, "sub", gv_ename(namegv), o2); |
4633a7c4 LW |
5577 | goto wrapref; |
5578 | case '$': | |
386acf99 GS |
5579 | if (o2->op_type != OP_RV2SV |
5580 | && o2->op_type != OP_PADSV | |
1c01eb51 GS |
5581 | && o2->op_type != OP_HELEM |
5582 | && o2->op_type != OP_AELEM | |
386acf99 GS |
5583 | && o2->op_type != OP_THREADSV) |
5584 | { | |
5dc0d613 | 5585 | bad_type(arg, "scalar", gv_ename(namegv), o2); |
386acf99 | 5586 | } |
4633a7c4 LW |
5587 | goto wrapref; |
5588 | case '@': | |
11343788 | 5589 | if (o2->op_type != OP_RV2AV && o2->op_type != OP_PADAV) |
5dc0d613 | 5590 | bad_type(arg, "array", gv_ename(namegv), o2); |
4633a7c4 LW |
5591 | goto wrapref; |
5592 | case '%': | |
11343788 | 5593 | if (o2->op_type != OP_RV2HV && o2->op_type != OP_PADHV) |
5dc0d613 | 5594 | bad_type(arg, "hash", gv_ename(namegv), o2); |
4633a7c4 LW |
5595 | wrapref: |
5596 | { | |
11343788 | 5597 | OP* kid = o2; |
6fa846a0 | 5598 | OP* sib = kid->op_sibling; |
4633a7c4 | 5599 | kid->op_sibling = 0; |
6fa846a0 GS |
5600 | o2 = newUNOP(OP_REFGEN, 0, kid); |
5601 | o2->op_sibling = sib; | |
e858de61 | 5602 | prev->op_sibling = o2; |
4633a7c4 LW |
5603 | } |
5604 | break; | |
5605 | default: goto oops; | |
5606 | } | |
5607 | break; | |
b1cb66bf | 5608 | case ' ': |
5609 | proto++; | |
5610 | continue; | |
4633a7c4 LW |
5611 | default: |
5612 | oops: | |
cea2e8a9 | 5613 | Perl_croak(aTHX_ "Malformed prototype for %s: %s", |
2d8e6c8d | 5614 | gv_ename(namegv), SvPV((SV*)cv, n_a)); |
4633a7c4 LW |
5615 | } |
5616 | } | |
5617 | else | |
11343788 MB |
5618 | list(o2); |
5619 | mod(o2, OP_ENTERSUB); | |
5620 | prev = o2; | |
5621 | o2 = o2->op_sibling; | |
4633a7c4 | 5622 | } |
fb73857a | 5623 | if (proto && !optional && |
5624 | (*proto && *proto != '@' && *proto != '%' && *proto != ';')) | |
5dc0d613 | 5625 | return too_few_arguments(o, gv_ename(namegv)); |
11343788 | 5626 | return o; |
79072805 LW |
5627 | } |
5628 | ||
5629 | OP * | |
cea2e8a9 | 5630 | Perl_ck_svconst(pTHX_ OP *o) |
8990e307 | 5631 | { |
11343788 MB |
5632 | SvREADONLY_on(cSVOPo->op_sv); |
5633 | return o; | |
8990e307 LW |
5634 | } |
5635 | ||
5636 | OP * | |
cea2e8a9 | 5637 | Perl_ck_trunc(pTHX_ OP *o) |
79072805 | 5638 | { |
11343788 MB |
5639 | if (o->op_flags & OPf_KIDS) { |
5640 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
79072805 | 5641 | |
a0d0e21e LW |
5642 | if (kid->op_type == OP_NULL) |
5643 | kid = (SVOP*)kid->op_sibling; | |
bb53490d GS |
5644 | if (kid && kid->op_type == OP_CONST && |
5645 | (kid->op_private & OPpCONST_BARE)) | |
5646 | { | |
11343788 | 5647 | o->op_flags |= OPf_SPECIAL; |
bb53490d GS |
5648 | kid->op_private &= ~OPpCONST_STRICT; |
5649 | } | |
79072805 | 5650 | } |
11343788 | 5651 | return ck_fun(o); |
79072805 LW |
5652 | } |
5653 | ||
463ee0b2 LW |
5654 | /* A peephole optimizer. We visit the ops in the order they're to execute. */ |
5655 | ||
79072805 | 5656 | void |
864dbfa3 | 5657 | Perl_peep(pTHX_ register OP *o) |
79072805 | 5658 | { |
11343788 | 5659 | dTHR; |
79072805 | 5660 | register OP* oldop = 0; |
2d8e6c8d GS |
5661 | STRLEN n_a; |
5662 | ||
a0d0e21e | 5663 | if (!o || o->op_seq) |
79072805 | 5664 | return; |
a0d0e21e | 5665 | ENTER; |
462e5cf6 | 5666 | SAVEOP(); |
3280af22 | 5667 | SAVESPTR(PL_curcop); |
a0d0e21e LW |
5668 | for (; o; o = o->op_next) { |
5669 | if (o->op_seq) | |
5670 | break; | |
3280af22 NIS |
5671 | if (!PL_op_seqmax) |
5672 | PL_op_seqmax++; | |
533c011a | 5673 | PL_op = o; |
a0d0e21e | 5674 | switch (o->op_type) { |
acb36ea4 | 5675 | case OP_SETSTATE: |
a0d0e21e LW |
5676 | case OP_NEXTSTATE: |
5677 | case OP_DBSTATE: | |
3280af22 NIS |
5678 | PL_curcop = ((COP*)o); /* for warnings */ |
5679 | o->op_seq = PL_op_seqmax++; | |
a0d0e21e LW |
5680 | break; |
5681 | ||
a0d0e21e | 5682 | case OP_CONST: |
7a52d87a GS |
5683 | if (cSVOPo->op_private & OPpCONST_STRICT) |
5684 | no_bareword_allowed(o); | |
5685 | /* FALL THROUGH */ | |
a0d0e21e LW |
5686 | case OP_UC: |
5687 | case OP_UCFIRST: | |
5688 | case OP_LC: | |
5689 | case OP_LCFIRST: | |
ed7ab888 GS |
5690 | if ( o->op_next && o->op_next->op_type == OP_STRINGIFY |
5691 | && !(o->op_next->op_private & OPpTARGET_MY) ) | |
5692 | null(o->op_next); | |
5693 | o->op_seq = PL_op_seqmax++; | |
5694 | break; | |
5695 | case OP_CONCAT: | |
5696 | case OP_JOIN: | |
a0d0e21e | 5697 | case OP_QUOTEMETA: |
b162f9ea IZ |
5698 | if (o->op_next && o->op_next->op_type == OP_STRINGIFY) { |
5699 | if (o->op_next->op_private & OPpTARGET_MY) { | |
ed7ab888 | 5700 | if ((o->op_flags & OPf_STACKED) /* chained concats */ |
b162f9ea IZ |
5701 | || (o->op_type == OP_CONCAT |
5702 | /* Concat has problems if target is equal to right arg. */ | |
5703 | && (((LISTOP*)o)->op_first->op_sibling->op_type | |
5704 | == OP_PADSV) | |
5705 | && (((LISTOP*)o)->op_first->op_sibling->op_targ | |
5706 | == o->op_next->op_targ))) { | |
5707 | goto ignore_optimization; | |
5708 | } else { | |
5709 | o->op_targ = o->op_next->op_targ; | |
5710 | } | |
5711 | } | |
a0d0e21e | 5712 | null(o->op_next); |
b162f9ea IZ |
5713 | } |
5714 | ignore_optimization: | |
3280af22 | 5715 | o->op_seq = PL_op_seqmax++; |
a0d0e21e | 5716 | break; |
8990e307 | 5717 | case OP_STUB: |
54310121 | 5718 | if ((o->op_flags & OPf_WANT) != OPf_WANT_LIST) { |
3280af22 | 5719 | o->op_seq = PL_op_seqmax++; |
54310121 | 5720 | break; /* Scalar stub must produce undef. List stub is noop */ |
8990e307 | 5721 | } |
748a9306 | 5722 | goto nothin; |
79072805 | 5723 | case OP_NULL: |
acb36ea4 GS |
5724 | if (o->op_targ == OP_NEXTSTATE |
5725 | || o->op_targ == OP_DBSTATE | |
5726 | || o->op_targ == OP_SETSTATE) | |
5727 | { | |
3280af22 | 5728 | PL_curcop = ((COP*)o); |
acb36ea4 | 5729 | } |
748a9306 | 5730 | goto nothin; |
79072805 | 5731 | case OP_SCALAR: |
93a17b20 | 5732 | case OP_LINESEQ: |
463ee0b2 | 5733 | case OP_SCOPE: |
748a9306 | 5734 | nothin: |
a0d0e21e LW |
5735 | if (oldop && o->op_next) { |
5736 | oldop->op_next = o->op_next; | |
79072805 LW |
5737 | continue; |
5738 | } | |
3280af22 | 5739 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
5740 | break; |
5741 | ||
5742 | case OP_GV: | |
a0d0e21e | 5743 | if (o->op_next->op_type == OP_RV2SV) { |
5f05dabc | 5744 | if (!(o->op_next->op_private & OPpDEREF)) { |
a0d0e21e LW |
5745 | null(o->op_next); |
5746 | o->op_private |= o->op_next->op_private & OPpLVAL_INTRO; | |
5747 | o->op_next = o->op_next->op_next; | |
5748 | o->op_type = OP_GVSV; | |
22c35a8c | 5749 | o->op_ppaddr = PL_ppaddr[OP_GVSV]; |
8990e307 LW |
5750 | } |
5751 | } | |
a0d0e21e LW |
5752 | else if (o->op_next->op_type == OP_RV2AV) { |
5753 | OP* pop = o->op_next->op_next; | |
5754 | IV i; | |
8990e307 | 5755 | if (pop->op_type == OP_CONST && |
533c011a | 5756 | (PL_op = pop->op_next) && |
8990e307 | 5757 | pop->op_next->op_type == OP_AELEM && |
a0d0e21e | 5758 | !(pop->op_next->op_private & |
68dc0745 | 5759 | (OPpLVAL_INTRO|OPpLVAL_DEFER|OPpDEREF)) && |
3280af22 | 5760 | (i = SvIV(((SVOP*)pop)->op_sv) - PL_compiling.cop_arybase) |
a0d0e21e | 5761 | <= 255 && |
8990e307 LW |
5762 | i >= 0) |
5763 | { | |
a0d0e21e | 5764 | null(o->op_next); |
8990e307 LW |
5765 | null(pop->op_next); |
5766 | null(pop); | |
a0d0e21e LW |
5767 | o->op_flags |= pop->op_next->op_flags & OPf_MOD; |
5768 | o->op_next = pop->op_next->op_next; | |
5769 | o->op_type = OP_AELEMFAST; | |
22c35a8c | 5770 | o->op_ppaddr = PL_ppaddr[OP_AELEMFAST]; |
a0d0e21e | 5771 | o->op_private = (U8)i; |
a6006777 | 5772 | GvAVn(((GVOP*)o)->op_gv); |
8990e307 | 5773 | } |
79072805 | 5774 | } |
76cd736e GS |
5775 | else if ((o->op_private & OPpEARLY_CV) && ckWARN(WARN_UNSAFE)) { |
5776 | GV *gv = cGVOPo->op_gv; | |
5777 | if (SvTYPE(gv) == SVt_PVGV && GvCV(gv) && SvPVX(GvCV(gv))) { | |
5778 | /* XXX could check prototype here instead of just carping */ | |
5779 | SV *sv = sv_newmortal(); | |
5780 | gv_efullname3(sv, gv, Nullch); | |
5781 | Perl_warner(aTHX_ WARN_UNSAFE, | |
5782 | "%s() called too early to check prototype", | |
5783 | SvPV_nolen(sv)); | |
5784 | } | |
5785 | } | |
5786 | ||
3280af22 | 5787 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
5788 | break; |
5789 | ||
a0d0e21e | 5790 | case OP_MAPWHILE: |
79072805 LW |
5791 | case OP_GREPWHILE: |
5792 | case OP_AND: | |
5793 | case OP_OR: | |
1a67a97c SM |
5794 | case OP_COND_EXPR: |
5795 | case OP_RANGE: | |
3280af22 | 5796 | o->op_seq = PL_op_seqmax++; |
fd4d1407 IZ |
5797 | while (cLOGOP->op_other->op_type == OP_NULL) |
5798 | cLOGOP->op_other = cLOGOP->op_other->op_next; | |
79072805 LW |
5799 | peep(cLOGOP->op_other); |
5800 | break; | |
5801 | ||
79072805 | 5802 | case OP_ENTERLOOP: |
3280af22 | 5803 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
5804 | peep(cLOOP->op_redoop); |
5805 | peep(cLOOP->op_nextop); | |
5806 | peep(cLOOP->op_lastop); | |
5807 | break; | |
5808 | ||
8782bef2 | 5809 | case OP_QR: |
79072805 LW |
5810 | case OP_MATCH: |
5811 | case OP_SUBST: | |
3280af22 | 5812 | o->op_seq = PL_op_seqmax++; |
a0d0e21e | 5813 | peep(cPMOP->op_pmreplstart); |
79072805 LW |
5814 | break; |
5815 | ||
a0d0e21e | 5816 | case OP_EXEC: |
3280af22 | 5817 | o->op_seq = PL_op_seqmax++; |
599cee73 PM |
5818 | if (ckWARN(WARN_SYNTAX) && o->op_next |
5819 | && o->op_next->op_type == OP_NEXTSTATE) { | |
a0d0e21e | 5820 | if (o->op_next->op_sibling && |
20408e3c GS |
5821 | o->op_next->op_sibling->op_type != OP_EXIT && |
5822 | o->op_next->op_sibling->op_type != OP_WARN && | |
a0d0e21e | 5823 | o->op_next->op_sibling->op_type != OP_DIE) { |
3280af22 | 5824 | line_t oldline = PL_curcop->cop_line; |
a0d0e21e | 5825 | |
3280af22 | 5826 | PL_curcop->cop_line = ((COP*)o->op_next)->cop_line; |
cea2e8a9 GS |
5827 | Perl_warner(aTHX_ WARN_SYNTAX, "Statement unlikely to be reached"); |
5828 | Perl_warner(aTHX_ WARN_SYNTAX, "(Maybe you meant system() when you said exec()?)\n"); | |
3280af22 | 5829 | PL_curcop->cop_line = oldline; |
a0d0e21e LW |
5830 | } |
5831 | } | |
5832 | break; | |
aeea060c | 5833 | |
c750a3ec MB |
5834 | case OP_HELEM: { |
5835 | UNOP *rop; | |
5836 | SV *lexname; | |
5837 | GV **fields; | |
5838 | SV **svp, **indsvp; | |
5839 | I32 ind; | |
5840 | char *key; | |
5841 | STRLEN keylen; | |
aeea060c | 5842 | |
377b21bb | 5843 | if ((o->op_private & (OPpLVAL_INTRO)) |
c750a3ec MB |
5844 | || ((BINOP*)o)->op_last->op_type != OP_CONST) |
5845 | break; | |
5846 | rop = (UNOP*)((BINOP*)o)->op_first; | |
5847 | if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV) | |
5848 | break; | |
3280af22 | 5849 | lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE); |
c750a3ec MB |
5850 | if (!SvOBJECT(lexname)) |
5851 | break; | |
5196be3e | 5852 | fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); |
c750a3ec MB |
5853 | if (!fields || !GvHV(*fields)) |
5854 | break; | |
5855 | svp = &((SVOP*)((BINOP*)o)->op_last)->op_sv; | |
5856 | key = SvPV(*svp, keylen); | |
5857 | indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE); | |
5858 | if (!indsvp) { | |
cea2e8a9 | 5859 | Perl_croak(aTHX_ "No such field \"%s\" in variable %s of type %s", |
2d8e6c8d | 5860 | key, SvPV(lexname, n_a), HvNAME(SvSTASH(lexname))); |
c750a3ec MB |
5861 | } |
5862 | ind = SvIV(*indsvp); | |
5863 | if (ind < 1) | |
cea2e8a9 | 5864 | Perl_croak(aTHX_ "Bad index while coercing array into hash"); |
c750a3ec | 5865 | rop->op_type = OP_RV2AV; |
22c35a8c | 5866 | rop->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
c750a3ec | 5867 | o->op_type = OP_AELEM; |
22c35a8c | 5868 | o->op_ppaddr = PL_ppaddr[OP_AELEM]; |
c750a3ec MB |
5869 | SvREFCNT_dec(*svp); |
5870 | *svp = newSViv(ind); | |
5871 | break; | |
5872 | } | |
5873 | ||
79072805 | 5874 | default: |
3280af22 | 5875 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
5876 | break; |
5877 | } | |
a0d0e21e | 5878 | oldop = o; |
79072805 | 5879 | } |
a0d0e21e | 5880 | LEAVE; |
79072805 | 5881 | } |