Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* op.c |
79072805 | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, 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 | 20 | #include "perl.h" |
77ca0c92 | 21 | #include "keywords.h" |
79072805 | 22 | |
b7dc083c | 23 | /* #define PL_OP_SLAB_ALLOC */ |
7934575e | 24 | |
b7dc083c NIS |
25 | #ifdef PL_OP_SLAB_ALLOC |
26 | #define SLAB_SIZE 8192 | |
27 | static char *PL_OpPtr = NULL; | |
28 | static int PL_OpSpace = 0; | |
29 | #define NewOp(m,var,c,type) do { if ((PL_OpSpace -= c*sizeof(type)) >= 0) \ | |
30 | var = (type *)(PL_OpPtr -= c*sizeof(type)); \ | |
31 | else \ | |
32 | var = (type *) Slab_Alloc(m,c*sizeof(type)); \ | |
33 | } while (0) | |
34 | ||
864dbfa3 | 35 | STATIC void * |
cea2e8a9 | 36 | S_Slab_Alloc(pTHX_ int m, size_t sz) |
b7dc083c NIS |
37 | { |
38 | Newz(m,PL_OpPtr,SLAB_SIZE,char); | |
39 | PL_OpSpace = SLAB_SIZE - sz; | |
40 | return PL_OpPtr += PL_OpSpace; | |
41 | } | |
76e3520e | 42 | |
b7dc083c NIS |
43 | #else |
44 | #define NewOp(m, var, c, type) Newz(m, var, c, type) | |
45 | #endif | |
e50aee73 | 46 | /* |
5dc0d613 | 47 | * In the following definition, the ", Nullop" is just to make the compiler |
a5f75d66 | 48 | * think the expression is of the right type: croak actually does a Siglongjmp. |
e50aee73 | 49 | */ |
11343788 | 50 | #define CHECKOP(type,o) \ |
3280af22 | 51 | ((PL_op_mask && PL_op_mask[type]) \ |
5dc0d613 | 52 | ? ( op_free((OP*)o), \ |
cea2e8a9 | 53 | Perl_croak(aTHX_ "%s trapped by operation mask", PL_op_desc[type]), \ |
28757baa | 54 | Nullop ) \ |
fc0dc3b3 | 55 | : CALL_FPTR(PL_check[type])(aTHX_ (OP*)o)) |
e50aee73 | 56 | |
c53d7c7d HS |
57 | #define PAD_MAX 999999999 |
58 | ||
76e3520e | 59 | STATIC char* |
cea2e8a9 | 60 | S_gv_ename(pTHX_ GV *gv) |
4633a7c4 | 61 | { |
2d8e6c8d | 62 | STRLEN n_a; |
4633a7c4 | 63 | SV* tmpsv = sv_newmortal(); |
46fc3d4c | 64 | gv_efullname3(tmpsv, gv, Nullch); |
2d8e6c8d | 65 | return SvPV(tmpsv,n_a); |
4633a7c4 LW |
66 | } |
67 | ||
76e3520e | 68 | STATIC OP * |
cea2e8a9 | 69 | S_no_fh_allowed(pTHX_ OP *o) |
79072805 | 70 | { |
cea2e8a9 | 71 | yyerror(Perl_form(aTHX_ "Missing comma after first argument to %s function", |
22c35a8c | 72 | PL_op_desc[o->op_type])); |
11343788 | 73 | return o; |
79072805 LW |
74 | } |
75 | ||
76e3520e | 76 | STATIC OP * |
cea2e8a9 | 77 | S_too_few_arguments(pTHX_ OP *o, char *name) |
79072805 | 78 | { |
cea2e8a9 | 79 | yyerror(Perl_form(aTHX_ "Not enough arguments for %s", name)); |
11343788 | 80 | return o; |
79072805 LW |
81 | } |
82 | ||
76e3520e | 83 | STATIC OP * |
cea2e8a9 | 84 | S_too_many_arguments(pTHX_ OP *o, char *name) |
79072805 | 85 | { |
cea2e8a9 | 86 | yyerror(Perl_form(aTHX_ "Too many arguments for %s", name)); |
11343788 | 87 | return o; |
79072805 LW |
88 | } |
89 | ||
76e3520e | 90 | STATIC void |
cea2e8a9 | 91 | S_bad_type(pTHX_ I32 n, char *t, char *name, OP *kid) |
8990e307 | 92 | { |
cea2e8a9 | 93 | yyerror(Perl_form(aTHX_ "Type of arg %d to %s must be %s (not %s)", |
22c35a8c | 94 | (int)n, name, t, PL_op_desc[kid->op_type])); |
8990e307 LW |
95 | } |
96 | ||
7a52d87a | 97 | STATIC void |
cea2e8a9 | 98 | S_no_bareword_allowed(pTHX_ OP *o) |
7a52d87a | 99 | { |
5a844595 GS |
100 | qerror(Perl_mess(aTHX_ |
101 | "Bareword \"%s\" not allowed while \"strict subs\" in use", | |
7766f137 | 102 | SvPV_nolen(cSVOPo_sv))); |
7a52d87a GS |
103 | } |
104 | ||
79072805 LW |
105 | /* "register" allocation */ |
106 | ||
107 | PADOFFSET | |
864dbfa3 | 108 | Perl_pad_allocmy(pTHX_ char *name) |
93a17b20 | 109 | { |
11343788 | 110 | dTHR; |
a0d0e21e LW |
111 | PADOFFSET off; |
112 | SV *sv; | |
113 | ||
155aba94 GS |
114 | if (!(PL_in_my == KEY_our || |
115 | isALPHA(name[1]) || | |
116 | (PL_hints & HINT_UTF8 && (name[1] & 0xc0) == 0xc0) || | |
117 | (name[1] == '_' && (int)strlen(name) > 2))) | |
834a4ddd | 118 | { |
c4d0567e | 119 | if (!isPRINT(name[1]) || strchr("\t\n\r\f", name[1])) { |
2b92dfce GS |
120 | /* 1999-02-27 mjd@plover.com */ |
121 | char *p; | |
122 | p = strchr(name, '\0'); | |
123 | /* The next block assumes the buffer is at least 205 chars | |
124 | long. At present, it's always at least 256 chars. */ | |
125 | if (p-name > 200) { | |
126 | strcpy(name+200, "..."); | |
127 | p = name+199; | |
128 | } | |
129 | else { | |
130 | p[1] = '\0'; | |
131 | } | |
132 | /* Move everything else down one character */ | |
133 | for (; p-name > 2; p--) | |
134 | *p = *(p-1); | |
46fc3d4c | 135 | name[2] = toCTRL(name[1]); |
136 | name[1] = '^'; | |
137 | } | |
cea2e8a9 | 138 | yyerror(Perl_form(aTHX_ "Can't use global %s in \"my\"",name)); |
a0d0e21e | 139 | } |
e476b1b5 | 140 | if (ckWARN(WARN_MISC) && AvFILLp(PL_comppad_name) >= 0) { |
3280af22 | 141 | SV **svp = AvARRAY(PL_comppad_name); |
33633739 GS |
142 | HV *ourstash = (PL_curstash ? PL_curstash : PL_defstash); |
143 | PADOFFSET top = AvFILLp(PL_comppad_name); | |
144 | for (off = top; off > PL_comppad_name_floor; off--) { | |
b1cb66bf | 145 | if ((sv = svp[off]) |
3280af22 | 146 | && sv != &PL_sv_undef |
c53d7c7d | 147 | && (SvIVX(sv) == PAD_MAX || SvIVX(sv) == 0) |
33633739 GS |
148 | && (PL_in_my != KEY_our |
149 | || ((SvFLAGS(sv) & SVpad_OUR) && GvSTASH(sv) == ourstash)) | |
b1cb66bf | 150 | && strEQ(name, SvPVX(sv))) |
151 | { | |
e476b1b5 | 152 | Perl_warner(aTHX_ WARN_MISC, |
33633739 GS |
153 | "\"%s\" variable %s masks earlier declaration in same %s", |
154 | (PL_in_my == KEY_our ? "our" : "my"), | |
155 | name, | |
156 | (SvIVX(sv) == PAD_MAX ? "scope" : "statement")); | |
157 | --off; | |
158 | break; | |
159 | } | |
160 | } | |
161 | if (PL_in_my == KEY_our) { | |
635bab04 | 162 | do { |
33633739 GS |
163 | if ((sv = svp[off]) |
164 | && sv != &PL_sv_undef | |
165 | && ((SvFLAGS(sv) & SVpad_OUR) && GvSTASH(sv) == ourstash) | |
166 | && strEQ(name, SvPVX(sv))) | |
f472eb5c | 167 | { |
e476b1b5 | 168 | Perl_warner(aTHX_ WARN_MISC, |
33633739 | 169 | "\"our\" variable %s redeclared", name); |
e476b1b5 | 170 | Perl_warner(aTHX_ WARN_MISC, |
33633739 GS |
171 | "(Did you mean \"local\" instead of \"our\"?)\n"); |
172 | break; | |
f472eb5c | 173 | } |
635bab04 | 174 | } while ( off-- > 0 ); |
b1cb66bf | 175 | } |
176 | } | |
a0d0e21e LW |
177 | off = pad_alloc(OP_PADSV, SVs_PADMY); |
178 | sv = NEWSV(1102,0); | |
93a17b20 LW |
179 | sv_upgrade(sv, SVt_PVNV); |
180 | sv_setpv(sv, name); | |
3280af22 | 181 | if (PL_in_my_stash) { |
c750a3ec | 182 | if (*name != '$') |
eb64745e GS |
183 | yyerror(Perl_form(aTHX_ "Can't declare class for non-scalar %s in \"%s\"", |
184 | name, PL_in_my == KEY_our ? "our" : "my")); | |
c750a3ec MB |
185 | SvOBJECT_on(sv); |
186 | (void)SvUPGRADE(sv, SVt_PVMG); | |
3280af22 NIS |
187 | SvSTASH(sv) = (HV*)SvREFCNT_inc(PL_in_my_stash); |
188 | PL_sv_objcount++; | |
c750a3ec | 189 | } |
f472eb5c GS |
190 | if (PL_in_my == KEY_our) { |
191 | (void)SvUPGRADE(sv, SVt_PVGV); | |
ef75a179 | 192 | GvSTASH(sv) = (HV*)SvREFCNT_inc(PL_curstash ? (SV*)PL_curstash : (SV*)PL_defstash); |
77ca0c92 | 193 | SvFLAGS(sv) |= SVpad_OUR; |
f472eb5c | 194 | } |
3280af22 | 195 | av_store(PL_comppad_name, off, sv); |
65202027 | 196 | SvNVX(sv) = (NV)PAD_MAX; |
8990e307 | 197 | SvIVX(sv) = 0; /* Not yet introduced--see newSTATEOP */ |
3280af22 NIS |
198 | if (!PL_min_intro_pending) |
199 | PL_min_intro_pending = off; | |
200 | PL_max_intro_pending = off; | |
93a17b20 | 201 | if (*name == '@') |
3280af22 | 202 | av_store(PL_comppad, off, (SV*)newAV()); |
93a17b20 | 203 | else if (*name == '%') |
3280af22 NIS |
204 | av_store(PL_comppad, off, (SV*)newHV()); |
205 | SvPADMY_on(PL_curpad[off]); | |
93a17b20 LW |
206 | return off; |
207 | } | |
208 | ||
94f23f41 GS |
209 | STATIC PADOFFSET |
210 | S_pad_addlex(pTHX_ SV *proto_namesv) | |
211 | { | |
212 | SV *namesv = NEWSV(1103,0); | |
213 | PADOFFSET newoff = pad_alloc(OP_PADSV, SVs_PADMY); | |
214 | sv_upgrade(namesv, SVt_PVNV); | |
215 | sv_setpv(namesv, SvPVX(proto_namesv)); | |
216 | av_store(PL_comppad_name, newoff, namesv); | |
217 | SvNVX(namesv) = (NV)PL_curcop->cop_seq; | |
218 | SvIVX(namesv) = PAD_MAX; /* A ref, intro immediately */ | |
219 | SvFAKE_on(namesv); /* A ref, not a real var */ | |
220 | if (SvFLAGS(proto_namesv) & SVpad_OUR) { /* An "our" variable */ | |
221 | SvFLAGS(namesv) |= SVpad_OUR; | |
222 | (void)SvUPGRADE(namesv, SVt_PVGV); | |
223 | GvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)GvSTASH(proto_namesv)); | |
224 | } | |
225 | if (SvOBJECT(proto_namesv)) { /* A typed var */ | |
226 | SvOBJECT_on(namesv); | |
227 | (void)SvUPGRADE(namesv, SVt_PVMG); | |
228 | SvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)SvSTASH(proto_namesv)); | |
229 | PL_sv_objcount++; | |
230 | } | |
231 | return newoff; | |
232 | } | |
233 | ||
2680586e GS |
234 | #define FINDLEX_NOSEARCH 1 /* don't search outer contexts */ |
235 | ||
76e3520e | 236 | STATIC PADOFFSET |
cea2e8a9 | 237 | S_pad_findlex(pTHX_ char *name, PADOFFSET newoff, U32 seq, CV* startcv, |
864dbfa3 | 238 | I32 cx_ix, I32 saweval, U32 flags) |
93a17b20 | 239 | { |
11343788 | 240 | dTHR; |
748a9306 | 241 | CV *cv; |
93a17b20 LW |
242 | I32 off; |
243 | SV *sv; | |
93a17b20 | 244 | register I32 i; |
c09156bb | 245 | register PERL_CONTEXT *cx; |
93a17b20 | 246 | |
748a9306 | 247 | for (cv = startcv; cv; cv = CvOUTSIDE(cv)) { |
4fdae800 | 248 | AV *curlist = CvPADLIST(cv); |
249 | SV **svp = av_fetch(curlist, 0, FALSE); | |
748a9306 | 250 | AV *curname; |
4fdae800 | 251 | |
3280af22 | 252 | if (!svp || *svp == &PL_sv_undef) |
4633a7c4 | 253 | continue; |
748a9306 LW |
254 | curname = (AV*)*svp; |
255 | svp = AvARRAY(curname); | |
93965878 | 256 | for (off = AvFILLp(curname); off > 0; off--) { |
748a9306 | 257 | if ((sv = svp[off]) && |
3280af22 | 258 | sv != &PL_sv_undef && |
748a9306 | 259 | seq <= SvIVX(sv) && |
13826f2c | 260 | seq > I_32(SvNVX(sv)) && |
748a9306 LW |
261 | strEQ(SvPVX(sv), name)) |
262 | { | |
5f05dabc | 263 | I32 depth; |
264 | AV *oldpad; | |
265 | SV *oldsv; | |
266 | ||
267 | depth = CvDEPTH(cv); | |
268 | if (!depth) { | |
9607fc9c | 269 | if (newoff) { |
270 | if (SvFAKE(sv)) | |
271 | continue; | |
4fdae800 | 272 | return 0; /* don't clone from inactive stack frame */ |
9607fc9c | 273 | } |
5f05dabc | 274 | depth = 1; |
275 | } | |
94f23f41 | 276 | oldpad = (AV*)AvARRAY(curlist)[depth]; |
5f05dabc | 277 | oldsv = *av_fetch(oldpad, off, TRUE); |
748a9306 | 278 | if (!newoff) { /* Not a mere clone operation. */ |
94f23f41 | 279 | newoff = pad_addlex(sv); |
3280af22 | 280 | if (CvANON(PL_compcv) || SvTYPE(PL_compcv) == SVt_PVFM) { |
28757baa | 281 | /* "It's closures all the way down." */ |
3280af22 | 282 | CvCLONE_on(PL_compcv); |
54310121 | 283 | if (cv == startcv) { |
3280af22 | 284 | if (CvANON(PL_compcv)) |
54310121 | 285 | oldsv = Nullsv; /* no need to keep ref */ |
286 | } | |
287 | else { | |
28757baa | 288 | CV *bcv; |
289 | for (bcv = startcv; | |
290 | bcv && bcv != cv && !CvCLONE(bcv); | |
6b35e009 GS |
291 | bcv = CvOUTSIDE(bcv)) |
292 | { | |
94f23f41 GS |
293 | if (CvANON(bcv)) { |
294 | /* install the missing pad entry in intervening | |
295 | * nested subs and mark them cloneable. | |
296 | * XXX fix pad_foo() to not use globals */ | |
297 | AV *ocomppad_name = PL_comppad_name; | |
298 | AV *ocomppad = PL_comppad; | |
299 | SV **ocurpad = PL_curpad; | |
300 | AV *padlist = CvPADLIST(bcv); | |
301 | PL_comppad_name = (AV*)AvARRAY(padlist)[0]; | |
302 | PL_comppad = (AV*)AvARRAY(padlist)[1]; | |
303 | PL_curpad = AvARRAY(PL_comppad); | |
304 | pad_addlex(sv); | |
305 | PL_comppad_name = ocomppad_name; | |
306 | PL_comppad = ocomppad; | |
307 | PL_curpad = ocurpad; | |
28757baa | 308 | CvCLONE_on(bcv); |
94f23f41 | 309 | } |
28757baa | 310 | else { |
6b35e009 GS |
311 | if (ckWARN(WARN_CLOSURE) |
312 | && !CvUNIQUE(bcv) && !CvUNIQUE(cv)) | |
313 | { | |
cea2e8a9 | 314 | Perl_warner(aTHX_ WARN_CLOSURE, |
44a8e56a | 315 | "Variable \"%s\" may be unavailable", |
28757baa | 316 | name); |
6b35e009 | 317 | } |
28757baa | 318 | break; |
319 | } | |
320 | } | |
321 | } | |
322 | } | |
3280af22 | 323 | else if (!CvUNIQUE(PL_compcv)) { |
599cee73 | 324 | if (ckWARN(WARN_CLOSURE) && !SvFAKE(sv) && !CvUNIQUE(cv)) |
cea2e8a9 | 325 | Perl_warner(aTHX_ WARN_CLOSURE, |
599cee73 | 326 | "Variable \"%s\" will not stay shared", name); |
5f05dabc | 327 | } |
748a9306 | 328 | } |
3280af22 | 329 | av_store(PL_comppad, newoff, SvREFCNT_inc(oldsv)); |
748a9306 LW |
330 | return newoff; |
331 | } | |
93a17b20 LW |
332 | } |
333 | } | |
334 | ||
2680586e GS |
335 | if (flags & FINDLEX_NOSEARCH) |
336 | return 0; | |
337 | ||
93a17b20 LW |
338 | /* Nothing in current lexical context--try eval's context, if any. |
339 | * This is necessary to let the perldb get at lexically scoped variables. | |
340 | * XXX This will also probably interact badly with eval tree caching. | |
341 | */ | |
342 | ||
748a9306 | 343 | for (i = cx_ix; i >= 0; i--) { |
93a17b20 | 344 | cx = &cxstack[i]; |
6b35e009 | 345 | switch (CxTYPE(cx)) { |
93a17b20 | 346 | default: |
748a9306 LW |
347 | if (i == 0 && saweval) { |
348 | seq = cxstack[saweval].blk_oldcop->cop_seq; | |
2680586e | 349 | return pad_findlex(name, newoff, seq, PL_main_cv, -1, saweval, 0); |
748a9306 | 350 | } |
93a17b20 LW |
351 | break; |
352 | case CXt_EVAL: | |
44a8e56a | 353 | switch (cx->blk_eval.old_op_type) { |
354 | case OP_ENTEREVAL: | |
6b35e009 GS |
355 | if (CxREALEVAL(cx)) |
356 | saweval = i; | |
44a8e56a | 357 | break; |
faa7e5bb | 358 | case OP_DOFILE: |
44a8e56a | 359 | case OP_REQUIRE: |
faa7e5bb | 360 | /* require/do must have their own scope */ |
44a8e56a | 361 | return 0; |
362 | } | |
93a17b20 | 363 | break; |
7766f137 | 364 | case CXt_FORMAT: |
93a17b20 LW |
365 | case CXt_SUB: |
366 | if (!saweval) | |
367 | return 0; | |
368 | cv = cx->blk_sub.cv; | |
3280af22 | 369 | if (PL_debstash && CvSTASH(cv) == PL_debstash) { /* ignore DB'* scope */ |
748a9306 | 370 | saweval = i; /* so we know where we were called from */ |
93a17b20 | 371 | continue; |
93a17b20 | 372 | } |
748a9306 | 373 | seq = cxstack[saweval].blk_oldcop->cop_seq; |
2680586e | 374 | return pad_findlex(name, newoff, seq, cv, i-1, saweval,FINDLEX_NOSEARCH); |
93a17b20 LW |
375 | } |
376 | } | |
377 | ||
748a9306 LW |
378 | return 0; |
379 | } | |
a0d0e21e | 380 | |
748a9306 | 381 | PADOFFSET |
864dbfa3 | 382 | Perl_pad_findmy(pTHX_ char *name) |
748a9306 | 383 | { |
11343788 | 384 | dTHR; |
748a9306 | 385 | I32 off; |
54310121 | 386 | I32 pendoff = 0; |
748a9306 | 387 | SV *sv; |
3280af22 NIS |
388 | SV **svp = AvARRAY(PL_comppad_name); |
389 | U32 seq = PL_cop_seqmax; | |
6b35e009 | 390 | PERL_CONTEXT *cx; |
33b8ce05 | 391 | CV *outside; |
748a9306 | 392 | |
11343788 MB |
393 | #ifdef USE_THREADS |
394 | /* | |
395 | * Special case to get lexical (and hence per-thread) @_. | |
396 | * XXX I need to find out how to tell at parse-time whether use | |
397 | * of @_ should refer to a lexical (from a sub) or defgv (global | |
398 | * scope and maybe weird sub-ish things like formats). See | |
399 | * startsub in perly.y. It's possible that @_ could be lexical | |
400 | * (at least from subs) even in non-threaded perl. | |
401 | */ | |
402 | if (strEQ(name, "@_")) | |
403 | return 0; /* success. (NOT_IN_PAD indicates failure) */ | |
404 | #endif /* USE_THREADS */ | |
405 | ||
748a9306 | 406 | /* The one we're looking for is probably just before comppad_name_fill. */ |
3280af22 | 407 | for (off = AvFILLp(PL_comppad_name); off > 0; off--) { |
a0d0e21e | 408 | if ((sv = svp[off]) && |
3280af22 | 409 | sv != &PL_sv_undef && |
54310121 | 410 | (!SvIVX(sv) || |
411 | (seq <= SvIVX(sv) && | |
412 | seq > I_32(SvNVX(sv)))) && | |
a0d0e21e LW |
413 | strEQ(SvPVX(sv), name)) |
414 | { | |
77ca0c92 | 415 | if (SvIVX(sv) || SvFLAGS(sv) & SVpad_OUR) |
54310121 | 416 | return (PADOFFSET)off; |
417 | pendoff = off; /* this pending def. will override import */ | |
a0d0e21e LW |
418 | } |
419 | } | |
748a9306 | 420 | |
33b8ce05 GS |
421 | outside = CvOUTSIDE(PL_compcv); |
422 | ||
423 | /* Check if if we're compiling an eval'', and adjust seq to be the | |
424 | * eval's seq number. This depends on eval'' having a non-null | |
425 | * CvOUTSIDE() while it is being compiled. The eval'' itself is | |
1aff0e91 GS |
426 | * identified by CvEVAL being true and CvGV being null. */ |
427 | if (outside && CvEVAL(PL_compcv) && !CvGV(PL_compcv) && cxstack_ix >= 0) { | |
6b35e009 GS |
428 | cx = &cxstack[cxstack_ix]; |
429 | if (CxREALEVAL(cx)) | |
430 | seq = cx->blk_oldcop->cop_seq; | |
431 | } | |
432 | ||
748a9306 | 433 | /* See if it's in a nested scope */ |
2680586e | 434 | off = pad_findlex(name, 0, seq, outside, cxstack_ix, 0, 0); |
54310121 | 435 | if (off) { |
436 | /* If there is a pending local definition, this new alias must die */ | |
437 | if (pendoff) | |
3280af22 | 438 | SvIVX(AvARRAY(PL_comppad_name)[off]) = seq; |
11343788 | 439 | return off; /* pad_findlex returns 0 for failure...*/ |
54310121 | 440 | } |
11343788 | 441 | return NOT_IN_PAD; /* ...but we return NOT_IN_PAD for failure */ |
93a17b20 LW |
442 | } |
443 | ||
444 | void | |
864dbfa3 | 445 | Perl_pad_leavemy(pTHX_ I32 fill) |
93a17b20 | 446 | { |
0453d815 | 447 | dTHR; |
93a17b20 | 448 | I32 off; |
3280af22 | 449 | SV **svp = AvARRAY(PL_comppad_name); |
93a17b20 | 450 | SV *sv; |
3280af22 NIS |
451 | if (PL_min_intro_pending && fill < PL_min_intro_pending) { |
452 | for (off = PL_max_intro_pending; off >= PL_min_intro_pending; off--) { | |
0453d815 PM |
453 | if ((sv = svp[off]) && sv != &PL_sv_undef && ckWARN_d(WARN_INTERNAL)) |
454 | Perl_warner(aTHX_ WARN_INTERNAL, "%s never introduced", SvPVX(sv)); | |
8990e307 LW |
455 | } |
456 | } | |
457 | /* "Deintroduce" my variables that are leaving with this scope. */ | |
3280af22 | 458 | for (off = AvFILLp(PL_comppad_name); off > fill; off--) { |
c53d7c7d | 459 | if ((sv = svp[off]) && sv != &PL_sv_undef && SvIVX(sv) == PAD_MAX) |
3280af22 | 460 | SvIVX(sv) = PL_cop_seqmax; |
93a17b20 LW |
461 | } |
462 | } | |
463 | ||
464 | PADOFFSET | |
864dbfa3 | 465 | Perl_pad_alloc(pTHX_ I32 optype, U32 tmptype) |
79072805 | 466 | { |
11343788 | 467 | dTHR; |
79072805 LW |
468 | SV *sv; |
469 | I32 retval; | |
470 | ||
3280af22 | 471 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 472 | Perl_croak(aTHX_ "panic: pad_alloc"); |
3280af22 | 473 | if (PL_pad_reset_pending) |
a0d0e21e | 474 | pad_reset(); |
ed6116ce | 475 | if (tmptype & SVs_PADMY) { |
79072805 | 476 | do { |
3280af22 | 477 | sv = *av_fetch(PL_comppad, AvFILLp(PL_comppad) + 1, TRUE); |
ed6116ce | 478 | } while (SvPADBUSY(sv)); /* need a fresh one */ |
3280af22 | 479 | retval = AvFILLp(PL_comppad); |
79072805 LW |
480 | } |
481 | else { | |
3280af22 NIS |
482 | SV **names = AvARRAY(PL_comppad_name); |
483 | SSize_t names_fill = AvFILLp(PL_comppad_name); | |
bbce6d69 | 484 | for (;;) { |
485 | /* | |
486 | * "foreach" index vars temporarily become aliases to non-"my" | |
487 | * values. Thus we must skip, not just pad values that are | |
488 | * marked as current pad values, but also those with names. | |
489 | */ | |
3280af22 NIS |
490 | if (++PL_padix <= names_fill && |
491 | (sv = names[PL_padix]) && sv != &PL_sv_undef) | |
bbce6d69 | 492 | continue; |
3280af22 | 493 | sv = *av_fetch(PL_comppad, PL_padix, TRUE); |
743e66e6 | 494 | if (!(SvFLAGS(sv) & (SVs_PADTMP|SVs_PADMY)) && !IS_PADGV(sv)) |
bbce6d69 | 495 | break; |
496 | } | |
3280af22 | 497 | retval = PL_padix; |
79072805 | 498 | } |
8990e307 | 499 | SvFLAGS(sv) |= tmptype; |
3280af22 | 500 | PL_curpad = AvARRAY(PL_comppad); |
11343788 | 501 | #ifdef USE_THREADS |
b900a521 JH |
502 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
503 | "0x%"UVxf" Pad 0x%"UVxf" alloc %ld for %s\n", | |
504 | PTR2UV(thr), PTR2UV(PL_curpad), | |
22c35a8c | 505 | (long) retval, PL_op_name[optype])); |
11343788 | 506 | #else |
b900a521 JH |
507 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
508 | "Pad 0x%"UVxf" alloc %ld for %s\n", | |
509 | PTR2UV(PL_curpad), | |
22c35a8c | 510 | (long) retval, PL_op_name[optype])); |
11343788 | 511 | #endif /* USE_THREADS */ |
79072805 LW |
512 | return (PADOFFSET)retval; |
513 | } | |
514 | ||
515 | SV * | |
864dbfa3 | 516 | Perl_pad_sv(pTHX_ PADOFFSET po) |
79072805 | 517 | { |
11343788 MB |
518 | dTHR; |
519 | #ifdef USE_THREADS | |
b900a521 | 520 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
f1dbda3d JH |
521 | "0x%"UVxf" Pad 0x%"UVxf" sv %"IVdf"\n", |
522 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 523 | #else |
79072805 | 524 | if (!po) |
cea2e8a9 | 525 | Perl_croak(aTHX_ "panic: pad_sv po"); |
97835f67 JH |
526 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" sv %"IVdf"\n", |
527 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 528 | #endif /* USE_THREADS */ |
3280af22 | 529 | return PL_curpad[po]; /* eventually we'll turn this into a macro */ |
79072805 LW |
530 | } |
531 | ||
532 | void | |
864dbfa3 | 533 | Perl_pad_free(pTHX_ PADOFFSET po) |
79072805 | 534 | { |
11343788 | 535 | dTHR; |
3280af22 | 536 | if (!PL_curpad) |
a0d0e21e | 537 | return; |
3280af22 | 538 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 539 | Perl_croak(aTHX_ "panic: pad_free curpad"); |
79072805 | 540 | if (!po) |
cea2e8a9 | 541 | Perl_croak(aTHX_ "panic: pad_free po"); |
11343788 | 542 | #ifdef USE_THREADS |
b900a521 | 543 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
7766f137 | 544 | "0x%"UVxf" Pad 0x%"UVxf" free %"IVdf"\n", |
f1dbda3d | 545 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); |
11343788 | 546 | #else |
97835f67 JH |
547 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" free %"IVdf"\n", |
548 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 549 | #endif /* USE_THREADS */ |
2aa1bedc | 550 | if (PL_curpad[po] && PL_curpad[po] != &PL_sv_undef) { |
3280af22 | 551 | SvPADTMP_off(PL_curpad[po]); |
2aa1bedc GS |
552 | #ifdef USE_ITHREADS |
553 | SvREADONLY_off(PL_curpad[po]); /* could be a freed constant */ | |
554 | #endif | |
555 | } | |
3280af22 NIS |
556 | if ((I32)po < PL_padix) |
557 | PL_padix = po - 1; | |
79072805 LW |
558 | } |
559 | ||
560 | void | |
864dbfa3 | 561 | Perl_pad_swipe(pTHX_ PADOFFSET po) |
79072805 | 562 | { |
11343788 | 563 | dTHR; |
3280af22 | 564 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 565 | Perl_croak(aTHX_ "panic: pad_swipe curpad"); |
79072805 | 566 | if (!po) |
cea2e8a9 | 567 | Perl_croak(aTHX_ "panic: pad_swipe po"); |
11343788 | 568 | #ifdef USE_THREADS |
b900a521 | 569 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
f1dbda3d JH |
570 | "0x%"UVxf" Pad 0x%"UVxf" swipe %"IVdf"\n", |
571 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 572 | #else |
97835f67 JH |
573 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" swipe %"IVdf"\n", |
574 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 575 | #endif /* USE_THREADS */ |
3280af22 NIS |
576 | SvPADTMP_off(PL_curpad[po]); |
577 | PL_curpad[po] = NEWSV(1107,0); | |
578 | SvPADTMP_on(PL_curpad[po]); | |
579 | if ((I32)po < PL_padix) | |
580 | PL_padix = po - 1; | |
79072805 LW |
581 | } |
582 | ||
d9bb4600 GS |
583 | /* XXX pad_reset() is currently disabled because it results in serious bugs. |
584 | * It causes pad temp TARGs to be shared between OPs. Since TARGs are pushed | |
585 | * on the stack by OPs that use them, there are several ways to get an alias | |
586 | * to a shared TARG. Such an alias will change randomly and unpredictably. | |
587 | * We avoid doing this until we can think of a Better Way. | |
588 | * GSAR 97-10-29 */ | |
79072805 | 589 | void |
864dbfa3 | 590 | Perl_pad_reset(pTHX) |
79072805 | 591 | { |
d9bb4600 | 592 | #ifdef USE_BROKEN_PAD_RESET |
11343788 | 593 | dTHR; |
79072805 LW |
594 | register I32 po; |
595 | ||
6b88bc9c | 596 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 597 | Perl_croak(aTHX_ "panic: pad_reset curpad"); |
11343788 | 598 | #ifdef USE_THREADS |
b900a521 JH |
599 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
600 | "0x%"UVxf" Pad 0x%"UVxf" reset\n", | |
601 | PTR2UV(thr), PTR2UV(PL_curpad))); | |
11343788 | 602 | #else |
b900a521 JH |
603 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" reset\n", |
604 | PTR2UV(PL_curpad))); | |
11343788 | 605 | #endif /* USE_THREADS */ |
6b88bc9c GS |
606 | if (!PL_tainting) { /* Can't mix tainted and non-tainted temporaries. */ |
607 | for (po = AvMAX(PL_comppad); po > PL_padix_floor; po--) { | |
608 | if (PL_curpad[po] && !SvIMMORTAL(PL_curpad[po])) | |
609 | SvPADTMP_off(PL_curpad[po]); | |
748a9306 | 610 | } |
6b88bc9c | 611 | PL_padix = PL_padix_floor; |
79072805 | 612 | } |
d9bb4600 | 613 | #endif |
3280af22 | 614 | PL_pad_reset_pending = FALSE; |
79072805 LW |
615 | } |
616 | ||
a863c7d1 | 617 | #ifdef USE_THREADS |
54b9620d | 618 | /* find_threadsv is not reentrant */ |
a863c7d1 | 619 | PADOFFSET |
864dbfa3 | 620 | Perl_find_threadsv(pTHX_ const char *name) |
a863c7d1 MB |
621 | { |
622 | dTHR; | |
623 | char *p; | |
624 | PADOFFSET key; | |
554b3eca | 625 | SV **svp; |
54b9620d | 626 | /* We currently only handle names of a single character */ |
533c011a | 627 | p = strchr(PL_threadsv_names, *name); |
a863c7d1 MB |
628 | if (!p) |
629 | return NOT_IN_PAD; | |
533c011a | 630 | key = p - PL_threadsv_names; |
2d8e6c8d | 631 | MUTEX_LOCK(&thr->mutex); |
54b9620d | 632 | svp = av_fetch(thr->threadsv, key, FALSE); |
2d8e6c8d GS |
633 | if (svp) |
634 | MUTEX_UNLOCK(&thr->mutex); | |
635 | else { | |
554b3eca | 636 | SV *sv = NEWSV(0, 0); |
54b9620d | 637 | av_store(thr->threadsv, key, sv); |
940cb80d | 638 | thr->threadsvp = AvARRAY(thr->threadsv); |
2d8e6c8d | 639 | MUTEX_UNLOCK(&thr->mutex); |
554b3eca MB |
640 | /* |
641 | * Some magic variables used to be automagically initialised | |
642 | * in gv_fetchpv. Those which are now per-thread magicals get | |
643 | * initialised here instead. | |
644 | */ | |
645 | switch (*name) { | |
54b9620d MB |
646 | case '_': |
647 | break; | |
554b3eca MB |
648 | case ';': |
649 | sv_setpv(sv, "\034"); | |
54b9620d | 650 | sv_magic(sv, 0, 0, name, 1); |
554b3eca | 651 | break; |
c277df42 IZ |
652 | case '&': |
653 | case '`': | |
654 | case '\'': | |
533c011a | 655 | PL_sawampersand = TRUE; |
a3f914c5 GS |
656 | /* FALL THROUGH */ |
657 | case '1': | |
658 | case '2': | |
659 | case '3': | |
660 | case '4': | |
661 | case '5': | |
662 | case '6': | |
663 | case '7': | |
664 | case '8': | |
665 | case '9': | |
c277df42 | 666 | SvREADONLY_on(sv); |
d8b5173a | 667 | /* FALL THROUGH */ |
067391ea GS |
668 | |
669 | /* XXX %! tied to Errno.pm needs to be added here. | |
670 | * See gv_fetchpv(). */ | |
671 | /* case '!': */ | |
672 | ||
54b9620d MB |
673 | default: |
674 | sv_magic(sv, 0, 0, name, 1); | |
554b3eca | 675 | } |
bf49b057 | 676 | DEBUG_S(PerlIO_printf(Perl_error_log, |
54b9620d | 677 | "find_threadsv: new SV %p for $%s%c\n", |
554b3eca MB |
678 | sv, (*name < 32) ? "^" : "", |
679 | (*name < 32) ? toCTRL(*name) : *name)); | |
a863c7d1 MB |
680 | } |
681 | return key; | |
682 | } | |
683 | #endif /* USE_THREADS */ | |
684 | ||
79072805 LW |
685 | /* Destructor */ |
686 | ||
687 | void | |
864dbfa3 | 688 | Perl_op_free(pTHX_ OP *o) |
79072805 | 689 | { |
85e6fe83 | 690 | register OP *kid, *nextkid; |
acb36ea4 | 691 | OPCODE type; |
79072805 | 692 | |
5dc0d613 | 693 | if (!o || o->op_seq == (U16)-1) |
79072805 LW |
694 | return; |
695 | ||
7934575e GS |
696 | if (o->op_private & OPpREFCOUNTED) { |
697 | switch (o->op_type) { | |
698 | case OP_LEAVESUB: | |
699 | case OP_LEAVESUBLV: | |
700 | case OP_LEAVEEVAL: | |
701 | case OP_LEAVE: | |
702 | case OP_SCOPE: | |
703 | case OP_LEAVEWRITE: | |
704 | OP_REFCNT_LOCK; | |
705 | if (OpREFCNT_dec(o)) { | |
706 | OP_REFCNT_UNLOCK; | |
707 | return; | |
708 | } | |
709 | OP_REFCNT_UNLOCK; | |
710 | break; | |
711 | default: | |
712 | break; | |
713 | } | |
714 | } | |
715 | ||
11343788 MB |
716 | if (o->op_flags & OPf_KIDS) { |
717 | for (kid = cUNOPo->op_first; kid; kid = nextkid) { | |
85e6fe83 | 718 | nextkid = kid->op_sibling; /* Get before next freeing kid */ |
79072805 | 719 | op_free(kid); |
85e6fe83 | 720 | } |
79072805 | 721 | } |
acb36ea4 GS |
722 | type = o->op_type; |
723 | if (type == OP_NULL) | |
724 | type = o->op_targ; | |
725 | ||
726 | /* COP* is not cleared by op_clear() so that we may track line | |
727 | * numbers etc even after null() */ | |
728 | if (type == OP_NEXTSTATE || type == OP_SETSTATE || type == OP_DBSTATE) | |
729 | cop_free((COP*)o); | |
730 | ||
731 | op_clear(o); | |
732 | ||
733 | #ifdef PL_OP_SLAB_ALLOC | |
734 | if ((char *) o == PL_OpPtr) | |
735 | { | |
736 | } | |
737 | #else | |
738 | Safefree(o); | |
739 | #endif | |
740 | } | |
79072805 | 741 | |
acb36ea4 GS |
742 | STATIC void |
743 | S_op_clear(pTHX_ OP *o) | |
744 | { | |
11343788 | 745 | switch (o->op_type) { |
acb36ea4 GS |
746 | case OP_NULL: /* Was holding old type, if any. */ |
747 | case OP_ENTEREVAL: /* Was holding hints. */ | |
748 | #ifdef USE_THREADS | |
749 | case OP_THREADSV: /* Was holding index into thr->threadsv AV. */ | |
750 | #endif | |
751 | o->op_targ = 0; | |
a0d0e21e | 752 | break; |
554b3eca | 753 | #ifdef USE_THREADS |
8dd3ba40 SM |
754 | case OP_ENTERITER: |
755 | if (!(o->op_flags & OPf_SPECIAL)) | |
756 | break; | |
757 | /* FALL THROUGH */ | |
554b3eca | 758 | #endif /* USE_THREADS */ |
a6006777 | 759 | default: |
ac4c12e7 | 760 | if (!(o->op_flags & OPf_REF) |
0b94c7bb | 761 | || (PL_check[o->op_type] != MEMBER_TO_FPTR(Perl_ck_ftst))) |
a6006777 | 762 | break; |
763 | /* FALL THROUGH */ | |
463ee0b2 | 764 | case OP_GVSV: |
79072805 | 765 | case OP_GV: |
a6006777 | 766 | case OP_AELEMFAST: |
350de78d | 767 | #ifdef USE_ITHREADS |
971a9dd3 GS |
768 | if (cPADOPo->op_padix > 0) { |
769 | if (PL_curpad) { | |
638eceb6 | 770 | GV *gv = cGVOPo_gv; |
971a9dd3 GS |
771 | pad_swipe(cPADOPo->op_padix); |
772 | /* No GvIN_PAD_off(gv) here, because other references may still | |
773 | * exist on the pad */ | |
774 | SvREFCNT_dec(gv); | |
775 | } | |
776 | cPADOPo->op_padix = 0; | |
777 | } | |
350de78d | 778 | #else |
971a9dd3 | 779 | SvREFCNT_dec(cSVOPo->op_sv); |
7934575e | 780 | cSVOPo->op_sv = Nullsv; |
350de78d | 781 | #endif |
79072805 LW |
782 | break; |
783 | case OP_CONST: | |
11343788 | 784 | SvREFCNT_dec(cSVOPo->op_sv); |
acb36ea4 | 785 | cSVOPo->op_sv = Nullsv; |
79072805 | 786 | break; |
748a9306 LW |
787 | case OP_GOTO: |
788 | case OP_NEXT: | |
789 | case OP_LAST: | |
790 | case OP_REDO: | |
11343788 | 791 | if (o->op_flags & (OPf_SPECIAL|OPf_STACKED|OPf_KIDS)) |
748a9306 LW |
792 | break; |
793 | /* FALL THROUGH */ | |
a0d0e21e | 794 | case OP_TRANS: |
acb36ea4 | 795 | if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { |
a0ed51b3 | 796 | SvREFCNT_dec(cSVOPo->op_sv); |
acb36ea4 GS |
797 | cSVOPo->op_sv = Nullsv; |
798 | } | |
799 | else { | |
a0ed51b3 | 800 | Safefree(cPVOPo->op_pv); |
acb36ea4 GS |
801 | cPVOPo->op_pv = Nullch; |
802 | } | |
a0d0e21e LW |
803 | break; |
804 | case OP_SUBST: | |
11343788 | 805 | op_free(cPMOPo->op_pmreplroot); |
971a9dd3 | 806 | goto clear_pmop; |
748a9306 | 807 | case OP_PUSHRE: |
971a9dd3 GS |
808 | #ifdef USE_ITHREADS |
809 | if ((PADOFFSET)cPMOPo->op_pmreplroot) { | |
810 | if (PL_curpad) { | |
811 | GV *gv = (GV*)PL_curpad[(PADOFFSET)cPMOPo->op_pmreplroot]; | |
812 | pad_swipe((PADOFFSET)cPMOPo->op_pmreplroot); | |
813 | /* No GvIN_PAD_off(gv) here, because other references may still | |
814 | * exist on the pad */ | |
815 | SvREFCNT_dec(gv); | |
816 | } | |
817 | } | |
818 | #else | |
819 | SvREFCNT_dec((SV*)cPMOPo->op_pmreplroot); | |
820 | #endif | |
821 | /* FALL THROUGH */ | |
a0d0e21e | 822 | case OP_MATCH: |
8782bef2 | 823 | case OP_QR: |
971a9dd3 GS |
824 | clear_pmop: |
825 | cPMOPo->op_pmreplroot = Nullop; | |
c277df42 | 826 | ReREFCNT_dec(cPMOPo->op_pmregexp); |
acb36ea4 | 827 | cPMOPo->op_pmregexp = (REGEXP*)NULL; |
a0d0e21e | 828 | break; |
79072805 LW |
829 | } |
830 | ||
743e66e6 | 831 | if (o->op_targ > 0) { |
11343788 | 832 | pad_free(o->op_targ); |
743e66e6 GS |
833 | o->op_targ = 0; |
834 | } | |
79072805 LW |
835 | } |
836 | ||
76e3520e | 837 | STATIC void |
3eb57f73 HS |
838 | S_cop_free(pTHX_ COP* cop) |
839 | { | |
840 | Safefree(cop->cop_label); | |
57843af0 GS |
841 | #ifdef USE_ITHREADS |
842 | Safefree(CopFILE(cop)); /* XXXXX share in a pvtable? */ | |
11faa288 | 843 | Safefree(CopSTASHPV(cop)); /* XXXXX share in a pvtable? */ |
57843af0 | 844 | #else |
11faa288 | 845 | /* NOTE: COP.cop_stash is not refcounted */ |
cc49e20b | 846 | SvREFCNT_dec(CopFILEGV(cop)); |
57843af0 | 847 | #endif |
0453d815 | 848 | if (! specialWARN(cop->cop_warnings)) |
3eb57f73 HS |
849 | SvREFCNT_dec(cop->cop_warnings); |
850 | } | |
851 | ||
852 | STATIC void | |
cea2e8a9 | 853 | S_null(pTHX_ OP *o) |
8990e307 | 854 | { |
acb36ea4 GS |
855 | if (o->op_type == OP_NULL) |
856 | return; | |
857 | op_clear(o); | |
11343788 MB |
858 | o->op_targ = o->op_type; |
859 | o->op_type = OP_NULL; | |
22c35a8c | 860 | o->op_ppaddr = PL_ppaddr[OP_NULL]; |
8990e307 LW |
861 | } |
862 | ||
79072805 LW |
863 | /* Contextualizers */ |
864 | ||
463ee0b2 | 865 | #define LINKLIST(o) ((o)->op_next ? (o)->op_next : linklist((OP*)o)) |
79072805 LW |
866 | |
867 | OP * | |
864dbfa3 | 868 | Perl_linklist(pTHX_ OP *o) |
79072805 LW |
869 | { |
870 | register OP *kid; | |
871 | ||
11343788 MB |
872 | if (o->op_next) |
873 | return o->op_next; | |
79072805 LW |
874 | |
875 | /* establish postfix order */ | |
11343788 MB |
876 | if (cUNOPo->op_first) { |
877 | o->op_next = LINKLIST(cUNOPo->op_first); | |
878 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { | |
79072805 LW |
879 | if (kid->op_sibling) |
880 | kid->op_next = LINKLIST(kid->op_sibling); | |
881 | else | |
11343788 | 882 | kid->op_next = o; |
79072805 LW |
883 | } |
884 | } | |
885 | else | |
11343788 | 886 | o->op_next = o; |
79072805 | 887 | |
11343788 | 888 | return o->op_next; |
79072805 LW |
889 | } |
890 | ||
891 | OP * | |
864dbfa3 | 892 | Perl_scalarkids(pTHX_ OP *o) |
79072805 LW |
893 | { |
894 | OP *kid; | |
11343788 MB |
895 | if (o && o->op_flags & OPf_KIDS) { |
896 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
79072805 LW |
897 | scalar(kid); |
898 | } | |
11343788 | 899 | return o; |
79072805 LW |
900 | } |
901 | ||
76e3520e | 902 | STATIC OP * |
cea2e8a9 | 903 | S_scalarboolean(pTHX_ OP *o) |
8990e307 | 904 | { |
d008e5eb | 905 | if (o->op_type == OP_SASSIGN && cBINOPo->op_first->op_type == OP_CONST) { |
0f15f207 | 906 | dTHR; |
d008e5eb | 907 | if (ckWARN(WARN_SYNTAX)) { |
57843af0 | 908 | line_t oldline = CopLINE(PL_curcop); |
a0d0e21e | 909 | |
d008e5eb | 910 | if (PL_copline != NOLINE) |
57843af0 | 911 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 912 | Perl_warner(aTHX_ WARN_SYNTAX, "Found = in conditional, should be =="); |
57843af0 | 913 | CopLINE_set(PL_curcop, oldline); |
d008e5eb | 914 | } |
a0d0e21e | 915 | } |
11343788 | 916 | return scalar(o); |
8990e307 LW |
917 | } |
918 | ||
919 | OP * | |
864dbfa3 | 920 | Perl_scalar(pTHX_ OP *o) |
79072805 LW |
921 | { |
922 | OP *kid; | |
923 | ||
a0d0e21e | 924 | /* assumes no premature commitment */ |
3280af22 | 925 | if (!o || (o->op_flags & OPf_WANT) || PL_error_count |
5dc0d613 | 926 | || o->op_type == OP_RETURN) |
7e363e51 | 927 | { |
11343788 | 928 | return o; |
7e363e51 | 929 | } |
79072805 | 930 | |
5dc0d613 | 931 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_SCALAR; |
79072805 | 932 | |
11343788 | 933 | switch (o->op_type) { |
79072805 | 934 | case OP_REPEAT: |
11343788 MB |
935 | if (o->op_private & OPpREPEAT_DOLIST) |
936 | null(((LISTOP*)cBINOPo->op_first)->op_first); | |
937 | scalar(cBINOPo->op_first); | |
8990e307 | 938 | break; |
79072805 LW |
939 | case OP_OR: |
940 | case OP_AND: | |
941 | case OP_COND_EXPR: | |
11343788 | 942 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
8990e307 | 943 | scalar(kid); |
79072805 | 944 | break; |
a0d0e21e | 945 | case OP_SPLIT: |
11343788 | 946 | if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) { |
a0d0e21e LW |
947 | if (!kPMOP->op_pmreplroot) |
948 | deprecate("implicit split to @_"); | |
949 | } | |
950 | /* FALL THROUGH */ | |
79072805 | 951 | case OP_MATCH: |
8782bef2 | 952 | case OP_QR: |
79072805 LW |
953 | case OP_SUBST: |
954 | case OP_NULL: | |
8990e307 | 955 | default: |
11343788 MB |
956 | if (o->op_flags & OPf_KIDS) { |
957 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) | |
8990e307 LW |
958 | scalar(kid); |
959 | } | |
79072805 LW |
960 | break; |
961 | case OP_LEAVE: | |
962 | case OP_LEAVETRY: | |
5dc0d613 | 963 | kid = cLISTOPo->op_first; |
54310121 | 964 | scalar(kid); |
155aba94 | 965 | while ((kid = kid->op_sibling)) { |
54310121 | 966 | if (kid->op_sibling) |
967 | scalarvoid(kid); | |
968 | else | |
969 | scalar(kid); | |
970 | } | |
3280af22 | 971 | WITH_THR(PL_curcop = &PL_compiling); |
54310121 | 972 | break; |
748a9306 | 973 | case OP_SCOPE: |
79072805 | 974 | case OP_LINESEQ: |
8990e307 | 975 | case OP_LIST: |
11343788 | 976 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
79072805 LW |
977 | if (kid->op_sibling) |
978 | scalarvoid(kid); | |
979 | else | |
980 | scalar(kid); | |
981 | } | |
3280af22 | 982 | WITH_THR(PL_curcop = &PL_compiling); |
79072805 LW |
983 | break; |
984 | } | |
11343788 | 985 | return o; |
79072805 LW |
986 | } |
987 | ||
988 | OP * | |
864dbfa3 | 989 | Perl_scalarvoid(pTHX_ OP *o) |
79072805 LW |
990 | { |
991 | OP *kid; | |
8990e307 LW |
992 | char* useless = 0; |
993 | SV* sv; | |
2ebea0a1 GS |
994 | U8 want; |
995 | ||
acb36ea4 GS |
996 | if (o->op_type == OP_NEXTSTATE |
997 | || o->op_type == OP_SETSTATE | |
998 | || o->op_type == OP_DBSTATE | |
999 | || (o->op_type == OP_NULL && (o->op_targ == OP_NEXTSTATE | |
1000 | || o->op_targ == OP_SETSTATE | |
1001 | || o->op_targ == OP_DBSTATE))) | |
2ebea0a1 GS |
1002 | { |
1003 | dTHR; | |
1004 | PL_curcop = (COP*)o; /* for warning below */ | |
1005 | } | |
79072805 | 1006 | |
54310121 | 1007 | /* assumes no premature commitment */ |
2ebea0a1 GS |
1008 | want = o->op_flags & OPf_WANT; |
1009 | if ((want && want != OPf_WANT_SCALAR) || PL_error_count | |
5dc0d613 | 1010 | || o->op_type == OP_RETURN) |
7e363e51 | 1011 | { |
11343788 | 1012 | return o; |
7e363e51 | 1013 | } |
79072805 | 1014 | |
b162f9ea | 1015 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1016 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1017 | { | |
b162f9ea | 1018 | return scalar(o); /* As if inside SASSIGN */ |
7e363e51 | 1019 | } |
b162f9ea | 1020 | |
5dc0d613 | 1021 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_VOID; |
79072805 | 1022 | |
11343788 | 1023 | switch (o->op_type) { |
79072805 | 1024 | default: |
22c35a8c | 1025 | if (!(PL_opargs[o->op_type] & OA_FOLDCONST)) |
8990e307 | 1026 | break; |
36477c24 | 1027 | /* FALL THROUGH */ |
1028 | case OP_REPEAT: | |
11343788 | 1029 | if (o->op_flags & OPf_STACKED) |
8990e307 | 1030 | break; |
5d82c453 GA |
1031 | goto func_ops; |
1032 | case OP_SUBSTR: | |
1033 | if (o->op_private == 4) | |
1034 | break; | |
8990e307 LW |
1035 | /* FALL THROUGH */ |
1036 | case OP_GVSV: | |
1037 | case OP_WANTARRAY: | |
1038 | case OP_GV: | |
1039 | case OP_PADSV: | |
1040 | case OP_PADAV: | |
1041 | case OP_PADHV: | |
1042 | case OP_PADANY: | |
1043 | case OP_AV2ARYLEN: | |
8990e307 | 1044 | case OP_REF: |
a0d0e21e LW |
1045 | case OP_REFGEN: |
1046 | case OP_SREFGEN: | |
8990e307 LW |
1047 | case OP_DEFINED: |
1048 | case OP_HEX: | |
1049 | case OP_OCT: | |
1050 | case OP_LENGTH: | |
8990e307 LW |
1051 | case OP_VEC: |
1052 | case OP_INDEX: | |
1053 | case OP_RINDEX: | |
1054 | case OP_SPRINTF: | |
1055 | case OP_AELEM: | |
1056 | case OP_AELEMFAST: | |
1057 | case OP_ASLICE: | |
8990e307 LW |
1058 | case OP_HELEM: |
1059 | case OP_HSLICE: | |
1060 | case OP_UNPACK: | |
1061 | case OP_PACK: | |
8990e307 LW |
1062 | case OP_JOIN: |
1063 | case OP_LSLICE: | |
1064 | case OP_ANONLIST: | |
1065 | case OP_ANONHASH: | |
1066 | case OP_SORT: | |
1067 | case OP_REVERSE: | |
1068 | case OP_RANGE: | |
1069 | case OP_FLIP: | |
1070 | case OP_FLOP: | |
1071 | case OP_CALLER: | |
1072 | case OP_FILENO: | |
1073 | case OP_EOF: | |
1074 | case OP_TELL: | |
1075 | case OP_GETSOCKNAME: | |
1076 | case OP_GETPEERNAME: | |
1077 | case OP_READLINK: | |
1078 | case OP_TELLDIR: | |
1079 | case OP_GETPPID: | |
1080 | case OP_GETPGRP: | |
1081 | case OP_GETPRIORITY: | |
1082 | case OP_TIME: | |
1083 | case OP_TMS: | |
1084 | case OP_LOCALTIME: | |
1085 | case OP_GMTIME: | |
1086 | case OP_GHBYNAME: | |
1087 | case OP_GHBYADDR: | |
1088 | case OP_GHOSTENT: | |
1089 | case OP_GNBYNAME: | |
1090 | case OP_GNBYADDR: | |
1091 | case OP_GNETENT: | |
1092 | case OP_GPBYNAME: | |
1093 | case OP_GPBYNUMBER: | |
1094 | case OP_GPROTOENT: | |
1095 | case OP_GSBYNAME: | |
1096 | case OP_GSBYPORT: | |
1097 | case OP_GSERVENT: | |
1098 | case OP_GPWNAM: | |
1099 | case OP_GPWUID: | |
1100 | case OP_GGRNAM: | |
1101 | case OP_GGRGID: | |
1102 | case OP_GETLOGIN: | |
5d82c453 | 1103 | func_ops: |
64aac5a9 | 1104 | if (!(o->op_private & (OPpLVAL_INTRO|OPpOUR_INTRO))) |
22c35a8c | 1105 | useless = PL_op_desc[o->op_type]; |
8990e307 LW |
1106 | break; |
1107 | ||
1108 | case OP_RV2GV: | |
1109 | case OP_RV2SV: | |
1110 | case OP_RV2AV: | |
1111 | case OP_RV2HV: | |
192587c2 | 1112 | if (!(o->op_private & (OPpLVAL_INTRO|OPpOUR_INTRO)) && |
11343788 | 1113 | (!o->op_sibling || o->op_sibling->op_type != OP_READLINE)) |
8990e307 LW |
1114 | useless = "a variable"; |
1115 | break; | |
79072805 LW |
1116 | |
1117 | case OP_CONST: | |
7766f137 | 1118 | sv = cSVOPo_sv; |
7a52d87a GS |
1119 | if (cSVOPo->op_private & OPpCONST_STRICT) |
1120 | no_bareword_allowed(o); | |
1121 | else { | |
d008e5eb GS |
1122 | dTHR; |
1123 | if (ckWARN(WARN_VOID)) { | |
1124 | useless = "a constant"; | |
1125 | if (SvNIOK(sv) && (SvNV(sv) == 0.0 || SvNV(sv) == 1.0)) | |
1126 | useless = 0; | |
1127 | else if (SvPOK(sv)) { | |
1128 | if (strnEQ(SvPVX(sv), "di", 2) || | |
1129 | strnEQ(SvPVX(sv), "ds", 2) || | |
1130 | strnEQ(SvPVX(sv), "ig", 2)) | |
1131 | useless = 0; | |
1132 | } | |
8990e307 LW |
1133 | } |
1134 | } | |
acb36ea4 | 1135 | null(o); /* don't execute or even remember it */ |
79072805 LW |
1136 | break; |
1137 | ||
1138 | case OP_POSTINC: | |
11343788 | 1139 | o->op_type = OP_PREINC; /* pre-increment is faster */ |
22c35a8c | 1140 | o->op_ppaddr = PL_ppaddr[OP_PREINC]; |
79072805 LW |
1141 | break; |
1142 | ||
1143 | case OP_POSTDEC: | |
11343788 | 1144 | o->op_type = OP_PREDEC; /* pre-decrement is faster */ |
22c35a8c | 1145 | o->op_ppaddr = PL_ppaddr[OP_PREDEC]; |
79072805 LW |
1146 | break; |
1147 | ||
79072805 LW |
1148 | case OP_OR: |
1149 | case OP_AND: | |
1150 | case OP_COND_EXPR: | |
11343788 | 1151 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
79072805 LW |
1152 | scalarvoid(kid); |
1153 | break; | |
5aabfad6 | 1154 | |
a0d0e21e | 1155 | case OP_NULL: |
11343788 | 1156 | if (o->op_flags & OPf_STACKED) |
a0d0e21e | 1157 | break; |
5aabfad6 | 1158 | /* FALL THROUGH */ |
2ebea0a1 GS |
1159 | case OP_NEXTSTATE: |
1160 | case OP_DBSTATE: | |
79072805 LW |
1161 | case OP_ENTERTRY: |
1162 | case OP_ENTER: | |
1163 | case OP_SCALAR: | |
11343788 | 1164 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1165 | break; |
54310121 | 1166 | /* FALL THROUGH */ |
463ee0b2 | 1167 | case OP_SCOPE: |
79072805 LW |
1168 | case OP_LEAVE: |
1169 | case OP_LEAVETRY: | |
a0d0e21e | 1170 | case OP_LEAVELOOP: |
79072805 | 1171 | case OP_LINESEQ: |
79072805 | 1172 | case OP_LIST: |
11343788 | 1173 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
79072805 LW |
1174 | scalarvoid(kid); |
1175 | break; | |
c90c0ff4 | 1176 | case OP_ENTEREVAL: |
5196be3e | 1177 | scalarkids(o); |
c90c0ff4 | 1178 | break; |
5aabfad6 | 1179 | case OP_REQUIRE: |
c90c0ff4 | 1180 | /* all requires must return a boolean value */ |
5196be3e MB |
1181 | o->op_flags &= ~OPf_WANT; |
1182 | return scalar(o); | |
a0d0e21e | 1183 | case OP_SPLIT: |
11343788 | 1184 | if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) { |
a0d0e21e LW |
1185 | if (!kPMOP->op_pmreplroot) |
1186 | deprecate("implicit split to @_"); | |
1187 | } | |
1188 | break; | |
79072805 | 1189 | } |
d008e5eb GS |
1190 | if (useless) { |
1191 | dTHR; | |
1192 | if (ckWARN(WARN_VOID)) | |
cea2e8a9 | 1193 | Perl_warner(aTHX_ WARN_VOID, "Useless use of %s in void context", useless); |
d008e5eb | 1194 | } |
11343788 | 1195 | return o; |
79072805 LW |
1196 | } |
1197 | ||
1198 | OP * | |
864dbfa3 | 1199 | Perl_listkids(pTHX_ OP *o) |
79072805 LW |
1200 | { |
1201 | OP *kid; | |
11343788 MB |
1202 | if (o && o->op_flags & OPf_KIDS) { |
1203 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
79072805 LW |
1204 | list(kid); |
1205 | } | |
11343788 | 1206 | return o; |
79072805 LW |
1207 | } |
1208 | ||
1209 | OP * | |
864dbfa3 | 1210 | Perl_list(pTHX_ OP *o) |
79072805 LW |
1211 | { |
1212 | OP *kid; | |
1213 | ||
a0d0e21e | 1214 | /* assumes no premature commitment */ |
3280af22 | 1215 | if (!o || (o->op_flags & OPf_WANT) || PL_error_count |
5dc0d613 | 1216 | || o->op_type == OP_RETURN) |
7e363e51 | 1217 | { |
11343788 | 1218 | return o; |
7e363e51 | 1219 | } |
79072805 | 1220 | |
b162f9ea | 1221 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1222 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1223 | { | |
b162f9ea | 1224 | return o; /* As if inside SASSIGN */ |
7e363e51 | 1225 | } |
b162f9ea | 1226 | |
5dc0d613 | 1227 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_LIST; |
79072805 | 1228 | |
11343788 | 1229 | switch (o->op_type) { |
79072805 LW |
1230 | case OP_FLOP: |
1231 | case OP_REPEAT: | |
11343788 | 1232 | list(cBINOPo->op_first); |
79072805 LW |
1233 | break; |
1234 | case OP_OR: | |
1235 | case OP_AND: | |
1236 | case OP_COND_EXPR: | |
11343788 | 1237 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
79072805 LW |
1238 | list(kid); |
1239 | break; | |
1240 | default: | |
1241 | case OP_MATCH: | |
8782bef2 | 1242 | case OP_QR: |
79072805 LW |
1243 | case OP_SUBST: |
1244 | case OP_NULL: | |
11343788 | 1245 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1246 | break; |
11343788 MB |
1247 | if (!o->op_next && cUNOPo->op_first->op_type == OP_FLOP) { |
1248 | list(cBINOPo->op_first); | |
1249 | return gen_constant_list(o); | |
79072805 LW |
1250 | } |
1251 | case OP_LIST: | |
11343788 | 1252 | listkids(o); |
79072805 LW |
1253 | break; |
1254 | case OP_LEAVE: | |
1255 | case OP_LEAVETRY: | |
5dc0d613 | 1256 | kid = cLISTOPo->op_first; |
54310121 | 1257 | list(kid); |
155aba94 | 1258 | while ((kid = kid->op_sibling)) { |
54310121 | 1259 | if (kid->op_sibling) |
1260 | scalarvoid(kid); | |
1261 | else | |
1262 | list(kid); | |
1263 | } | |
3280af22 | 1264 | WITH_THR(PL_curcop = &PL_compiling); |
54310121 | 1265 | break; |
748a9306 | 1266 | case OP_SCOPE: |
79072805 | 1267 | case OP_LINESEQ: |
11343788 | 1268 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
79072805 LW |
1269 | if (kid->op_sibling) |
1270 | scalarvoid(kid); | |
1271 | else | |
1272 | list(kid); | |
1273 | } | |
3280af22 | 1274 | WITH_THR(PL_curcop = &PL_compiling); |
79072805 | 1275 | break; |
c90c0ff4 | 1276 | case OP_REQUIRE: |
1277 | /* all requires must return a boolean value */ | |
5196be3e MB |
1278 | o->op_flags &= ~OPf_WANT; |
1279 | return scalar(o); | |
79072805 | 1280 | } |
11343788 | 1281 | return o; |
79072805 LW |
1282 | } |
1283 | ||
1284 | OP * | |
864dbfa3 | 1285 | Perl_scalarseq(pTHX_ OP *o) |
79072805 LW |
1286 | { |
1287 | OP *kid; | |
1288 | ||
11343788 MB |
1289 | if (o) { |
1290 | if (o->op_type == OP_LINESEQ || | |
1291 | o->op_type == OP_SCOPE || | |
1292 | o->op_type == OP_LEAVE || | |
1293 | o->op_type == OP_LEAVETRY) | |
463ee0b2 | 1294 | { |
0f15f207 | 1295 | dTHR; |
11343788 | 1296 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
ed6116ce | 1297 | if (kid->op_sibling) { |
463ee0b2 | 1298 | scalarvoid(kid); |
ed6116ce | 1299 | } |
463ee0b2 | 1300 | } |
3280af22 | 1301 | PL_curcop = &PL_compiling; |
79072805 | 1302 | } |
11343788 | 1303 | o->op_flags &= ~OPf_PARENS; |
3280af22 | 1304 | if (PL_hints & HINT_BLOCK_SCOPE) |
11343788 | 1305 | o->op_flags |= OPf_PARENS; |
79072805 | 1306 | } |
8990e307 | 1307 | else |
11343788 MB |
1308 | o = newOP(OP_STUB, 0); |
1309 | return o; | |
79072805 LW |
1310 | } |
1311 | ||
76e3520e | 1312 | STATIC OP * |
cea2e8a9 | 1313 | S_modkids(pTHX_ OP *o, I32 type) |
79072805 LW |
1314 | { |
1315 | OP *kid; | |
11343788 MB |
1316 | if (o && o->op_flags & OPf_KIDS) { |
1317 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
463ee0b2 | 1318 | mod(kid, type); |
79072805 | 1319 | } |
11343788 | 1320 | return o; |
79072805 LW |
1321 | } |
1322 | ||
79072805 | 1323 | OP * |
864dbfa3 | 1324 | Perl_mod(pTHX_ OP *o, I32 type) |
79072805 | 1325 | { |
11343788 | 1326 | dTHR; |
79072805 | 1327 | OP *kid; |
2d8e6c8d | 1328 | STRLEN n_a; |
79072805 | 1329 | |
3280af22 | 1330 | if (!o || PL_error_count) |
11343788 | 1331 | return o; |
79072805 | 1332 | |
b162f9ea | 1333 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1334 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1335 | { | |
b162f9ea | 1336 | return o; |
7e363e51 | 1337 | } |
b162f9ea | 1338 | |
11343788 | 1339 | switch (o->op_type) { |
68dc0745 | 1340 | case OP_UNDEF: |
3280af22 | 1341 | PL_modcount++; |
5dc0d613 | 1342 | return o; |
a0d0e21e | 1343 | case OP_CONST: |
11343788 | 1344 | if (!(o->op_private & (OPpCONST_ARYBASE))) |
a0d0e21e | 1345 | goto nomod; |
3280af22 | 1346 | if (PL_eval_start && PL_eval_start->op_type == OP_CONST) { |
7766f137 | 1347 | PL_compiling.cop_arybase = (I32)SvIV(cSVOPx(PL_eval_start)->op_sv); |
3280af22 | 1348 | PL_eval_start = 0; |
a0d0e21e LW |
1349 | } |
1350 | else if (!type) { | |
3280af22 NIS |
1351 | SAVEI32(PL_compiling.cop_arybase); |
1352 | PL_compiling.cop_arybase = 0; | |
a0d0e21e LW |
1353 | } |
1354 | else if (type == OP_REFGEN) | |
1355 | goto nomod; | |
1356 | else | |
cea2e8a9 | 1357 | Perl_croak(aTHX_ "That use of $[ is unsupported"); |
a0d0e21e | 1358 | break; |
5f05dabc | 1359 | case OP_STUB: |
5196be3e | 1360 | if (o->op_flags & OPf_PARENS) |
5f05dabc | 1361 | break; |
1362 | goto nomod; | |
a0d0e21e LW |
1363 | case OP_ENTERSUB: |
1364 | if ((type == OP_UNDEF || type == OP_REFGEN) && | |
11343788 MB |
1365 | !(o->op_flags & OPf_STACKED)) { |
1366 | o->op_type = OP_RV2CV; /* entersub => rv2cv */ | |
22c35a8c | 1367 | o->op_ppaddr = PL_ppaddr[OP_RV2CV]; |
11343788 MB |
1368 | assert(cUNOPo->op_first->op_type == OP_NULL); |
1369 | null(((LISTOP*)cUNOPo->op_first)->op_first);/* disable pushmark */ | |
79072805 LW |
1370 | break; |
1371 | } | |
cd06dffe GS |
1372 | else { /* lvalue subroutine call */ |
1373 | o->op_private |= OPpLVAL_INTRO; | |
4978d6d9 | 1374 | if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN) { |
cd06dffe GS |
1375 | /* Backward compatibility mode: */ |
1376 | o->op_private |= OPpENTERSUB_INARGS; | |
1377 | break; | |
1378 | } | |
1379 | else { /* Compile-time error message: */ | |
1380 | OP *kid = cUNOPo->op_first; | |
1381 | CV *cv; | |
1382 | OP *okid; | |
1383 | ||
1384 | if (kid->op_type == OP_PUSHMARK) | |
1385 | goto skip_kids; | |
1386 | if (kid->op_type != OP_NULL || kid->op_targ != OP_LIST) | |
1387 | Perl_croak(aTHX_ | |
1388 | "panic: unexpected lvalue entersub " | |
1389 | "args: type/targ %ld:%ld", | |
1390 | (long)kid->op_type,kid->op_targ); | |
1391 | kid = kLISTOP->op_first; | |
1392 | skip_kids: | |
1393 | while (kid->op_sibling) | |
1394 | kid = kid->op_sibling; | |
1395 | if (!(kid->op_type == OP_NULL && kid->op_targ == OP_RV2CV)) { | |
1396 | /* Indirect call */ | |
1397 | if (kid->op_type == OP_METHOD_NAMED | |
1398 | || kid->op_type == OP_METHOD) | |
1399 | { | |
87d7fd28 | 1400 | UNOP *newop; |
cd06dffe GS |
1401 | |
1402 | if (kid->op_sibling || kid->op_next != kid) { | |
1403 | yyerror("panic: unexpected optree near method call"); | |
1404 | break; | |
1405 | } | |
1406 | ||
87d7fd28 | 1407 | NewOp(1101, newop, 1, UNOP); |
349fd7b7 GS |
1408 | newop->op_type = OP_RV2CV; |
1409 | newop->op_ppaddr = PL_ppaddr[OP_RV2CV]; | |
87d7fd28 GS |
1410 | newop->op_first = Nullop; |
1411 | newop->op_next = (OP*)newop; | |
1412 | kid->op_sibling = (OP*)newop; | |
349fd7b7 | 1413 | newop->op_private |= OPpLVAL_INTRO; |
cd06dffe GS |
1414 | break; |
1415 | } | |
1416 | ||
1417 | if (kid->op_type != OP_RV2CV) | |
1418 | Perl_croak(aTHX_ | |
1419 | "panic: unexpected lvalue entersub " | |
1420 | "entry via type/targ %ld:%ld", | |
1421 | (long)kid->op_type,kid->op_targ); | |
1422 | kid->op_private |= OPpLVAL_INTRO; | |
1423 | break; /* Postpone until runtime */ | |
1424 | } | |
1425 | ||
1426 | okid = kid; | |
1427 | kid = kUNOP->op_first; | |
1428 | if (kid->op_type == OP_NULL && kid->op_targ == OP_RV2SV) | |
1429 | kid = kUNOP->op_first; | |
1430 | if (kid->op_type == OP_NULL) | |
1431 | Perl_croak(aTHX_ | |
1432 | "Unexpected constant lvalue entersub " | |
1433 | "entry via type/targ %ld:%ld", | |
1434 | (long)kid->op_type,kid->op_targ); | |
1435 | if (kid->op_type != OP_GV) { | |
1436 | /* Restore RV2CV to check lvalueness */ | |
1437 | restore_2cv: | |
1438 | if (kid->op_next && kid->op_next != kid) { /* Happens? */ | |
1439 | okid->op_next = kid->op_next; | |
1440 | kid->op_next = okid; | |
1441 | } | |
1442 | else | |
1443 | okid->op_next = Nullop; | |
1444 | okid->op_type = OP_RV2CV; | |
1445 | okid->op_targ = 0; | |
1446 | okid->op_ppaddr = PL_ppaddr[OP_RV2CV]; | |
1447 | okid->op_private |= OPpLVAL_INTRO; | |
1448 | break; | |
1449 | } | |
1450 | ||
638eceb6 | 1451 | cv = GvCV(kGVOP_gv); |
cd06dffe GS |
1452 | if (!cv) |
1453 | goto restore_2cv; | |
1454 | if (CvLVALUE(cv)) | |
1455 | break; | |
1456 | } | |
1457 | } | |
79072805 LW |
1458 | /* FALL THROUGH */ |
1459 | default: | |
a0d0e21e LW |
1460 | nomod: |
1461 | /* grep, foreach, subcalls, refgen */ | |
1462 | if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN) | |
1463 | break; | |
cea2e8a9 | 1464 | yyerror(Perl_form(aTHX_ "Can't modify %s in %s", |
638bc118 | 1465 | (o->op_type == OP_NULL && (o->op_flags & OPf_SPECIAL) |
cd06dffe GS |
1466 | ? "do block" |
1467 | : (o->op_type == OP_ENTERSUB | |
1468 | ? "non-lvalue subroutine call" | |
1469 | : PL_op_desc[o->op_type])), | |
22c35a8c | 1470 | type ? PL_op_desc[type] : "local")); |
11343788 | 1471 | return o; |
79072805 | 1472 | |
a0d0e21e LW |
1473 | case OP_PREINC: |
1474 | case OP_PREDEC: | |
1475 | case OP_POW: | |
1476 | case OP_MULTIPLY: | |
1477 | case OP_DIVIDE: | |
1478 | case OP_MODULO: | |
1479 | case OP_REPEAT: | |
1480 | case OP_ADD: | |
1481 | case OP_SUBTRACT: | |
1482 | case OP_CONCAT: | |
1483 | case OP_LEFT_SHIFT: | |
1484 | case OP_RIGHT_SHIFT: | |
1485 | case OP_BIT_AND: | |
1486 | case OP_BIT_XOR: | |
1487 | case OP_BIT_OR: | |
1488 | case OP_I_MULTIPLY: | |
1489 | case OP_I_DIVIDE: | |
1490 | case OP_I_MODULO: | |
1491 | case OP_I_ADD: | |
1492 | case OP_I_SUBTRACT: | |
11343788 | 1493 | if (!(o->op_flags & OPf_STACKED)) |
a0d0e21e | 1494 | goto nomod; |
3280af22 | 1495 | PL_modcount++; |
a0d0e21e LW |
1496 | break; |
1497 | ||
79072805 | 1498 | case OP_COND_EXPR: |
11343788 | 1499 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
463ee0b2 | 1500 | mod(kid, type); |
79072805 LW |
1501 | break; |
1502 | ||
1503 | case OP_RV2AV: | |
1504 | case OP_RV2HV: | |
93af7a87 | 1505 | if (!type && cUNOPo->op_first->op_type != OP_GV) |
cea2e8a9 | 1506 | Perl_croak(aTHX_ "Can't localize through a reference"); |
11343788 | 1507 | if (type == OP_REFGEN && o->op_flags & OPf_PARENS) { |
3280af22 | 1508 | PL_modcount = 10000; |
11343788 | 1509 | return o; /* Treat \(@foo) like ordinary list. */ |
748a9306 LW |
1510 | } |
1511 | /* FALL THROUGH */ | |
79072805 | 1512 | case OP_RV2GV: |
5dc0d613 | 1513 | if (scalar_mod_type(o, type)) |
3fe9a6f1 | 1514 | goto nomod; |
11343788 | 1515 | ref(cUNOPo->op_first, o->op_type); |
79072805 LW |
1516 | /* FALL THROUGH */ |
1517 | case OP_AASSIGN: | |
1518 | case OP_ASLICE: | |
1519 | case OP_HSLICE: | |
93a17b20 LW |
1520 | case OP_NEXTSTATE: |
1521 | case OP_DBSTATE: | |
a0d0e21e LW |
1522 | case OP_REFGEN: |
1523 | case OP_CHOMP: | |
3280af22 | 1524 | PL_modcount = 10000; |
79072805 | 1525 | break; |
463ee0b2 | 1526 | case OP_RV2SV: |
11343788 | 1527 | if (!type && cUNOPo->op_first->op_type != OP_GV) |
cea2e8a9 | 1528 | Perl_croak(aTHX_ "Can't localize through a reference"); |
aeea060c | 1529 | ref(cUNOPo->op_first, o->op_type); |
463ee0b2 | 1530 | /* FALL THROUGH */ |
79072805 | 1531 | case OP_GV: |
463ee0b2 | 1532 | case OP_AV2ARYLEN: |
3280af22 | 1533 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 1534 | case OP_SASSIGN: |
bf4b1e52 GS |
1535 | case OP_ANDASSIGN: |
1536 | case OP_ORASSIGN: | |
8990e307 | 1537 | case OP_AELEMFAST: |
3280af22 | 1538 | PL_modcount++; |
8990e307 LW |
1539 | break; |
1540 | ||
748a9306 LW |
1541 | case OP_PADAV: |
1542 | case OP_PADHV: | |
3280af22 | 1543 | PL_modcount = 10000; |
5196be3e MB |
1544 | if (type == OP_REFGEN && o->op_flags & OPf_PARENS) |
1545 | return o; /* Treat \(@foo) like ordinary list. */ | |
1546 | if (scalar_mod_type(o, type)) | |
3fe9a6f1 | 1547 | goto nomod; |
748a9306 LW |
1548 | /* FALL THROUGH */ |
1549 | case OP_PADSV: | |
3280af22 | 1550 | PL_modcount++; |
748a9306 | 1551 | if (!type) |
cea2e8a9 | 1552 | Perl_croak(aTHX_ "Can't localize lexical variable %s", |
2d8e6c8d | 1553 | SvPV(*av_fetch(PL_comppad_name, o->op_targ, 4), n_a)); |
463ee0b2 LW |
1554 | break; |
1555 | ||
554b3eca | 1556 | #ifdef USE_THREADS |
2faa37cc | 1557 | case OP_THREADSV: |
533c011a | 1558 | PL_modcount++; /* XXX ??? */ |
554b3eca MB |
1559 | break; |
1560 | #endif /* USE_THREADS */ | |
1561 | ||
748a9306 LW |
1562 | case OP_PUSHMARK: |
1563 | break; | |
a0d0e21e | 1564 | |
69969c6f SB |
1565 | case OP_KEYS: |
1566 | if (type != OP_SASSIGN) | |
1567 | goto nomod; | |
5d82c453 GA |
1568 | goto lvalue_func; |
1569 | case OP_SUBSTR: | |
1570 | if (o->op_private == 4) /* don't allow 4 arg substr as lvalue */ | |
1571 | goto nomod; | |
5f05dabc | 1572 | /* FALL THROUGH */ |
a0d0e21e | 1573 | case OP_POS: |
463ee0b2 | 1574 | case OP_VEC: |
5d82c453 | 1575 | lvalue_func: |
11343788 MB |
1576 | pad_free(o->op_targ); |
1577 | o->op_targ = pad_alloc(o->op_type, SVs_PADMY); | |
5dc0d613 | 1578 | assert(SvTYPE(PAD_SV(o->op_targ)) == SVt_NULL); |
11343788 MB |
1579 | if (o->op_flags & OPf_KIDS) |
1580 | mod(cBINOPo->op_first->op_sibling, type); | |
463ee0b2 | 1581 | break; |
a0d0e21e | 1582 | |
463ee0b2 LW |
1583 | case OP_AELEM: |
1584 | case OP_HELEM: | |
11343788 | 1585 | ref(cBINOPo->op_first, o->op_type); |
68dc0745 | 1586 | if (type == OP_ENTERSUB && |
5dc0d613 MB |
1587 | !(o->op_private & (OPpLVAL_INTRO | OPpDEREF))) |
1588 | o->op_private |= OPpLVAL_DEFER; | |
3280af22 | 1589 | PL_modcount++; |
463ee0b2 LW |
1590 | break; |
1591 | ||
1592 | case OP_SCOPE: | |
1593 | case OP_LEAVE: | |
1594 | case OP_ENTER: | |
11343788 MB |
1595 | if (o->op_flags & OPf_KIDS) |
1596 | mod(cLISTOPo->op_last, type); | |
a0d0e21e LW |
1597 | break; |
1598 | ||
1599 | case OP_NULL: | |
638bc118 GS |
1600 | if (o->op_flags & OPf_SPECIAL) /* do BLOCK */ |
1601 | goto nomod; | |
1602 | else if (!(o->op_flags & OPf_KIDS)) | |
463ee0b2 | 1603 | break; |
11343788 MB |
1604 | if (o->op_targ != OP_LIST) { |
1605 | mod(cBINOPo->op_first, type); | |
a0d0e21e LW |
1606 | break; |
1607 | } | |
1608 | /* FALL THROUGH */ | |
463ee0b2 | 1609 | case OP_LIST: |
11343788 | 1610 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
463ee0b2 LW |
1611 | mod(kid, type); |
1612 | break; | |
1613 | } | |
11343788 | 1614 | o->op_flags |= OPf_MOD; |
a0d0e21e LW |
1615 | |
1616 | if (type == OP_AASSIGN || type == OP_SASSIGN) | |
11343788 | 1617 | o->op_flags |= OPf_SPECIAL|OPf_REF; |
a0d0e21e | 1618 | else if (!type) { |
11343788 MB |
1619 | o->op_private |= OPpLVAL_INTRO; |
1620 | o->op_flags &= ~OPf_SPECIAL; | |
3280af22 | 1621 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 1622 | } |
a0d0e21e | 1623 | else if (type != OP_GREPSTART && type != OP_ENTERSUB) |
11343788 MB |
1624 | o->op_flags |= OPf_REF; |
1625 | return o; | |
463ee0b2 LW |
1626 | } |
1627 | ||
864dbfa3 | 1628 | STATIC bool |
cea2e8a9 | 1629 | S_scalar_mod_type(pTHX_ OP *o, I32 type) |
3fe9a6f1 | 1630 | { |
1631 | switch (type) { | |
1632 | case OP_SASSIGN: | |
5196be3e | 1633 | if (o->op_type == OP_RV2GV) |
3fe9a6f1 | 1634 | return FALSE; |
1635 | /* FALL THROUGH */ | |
1636 | case OP_PREINC: | |
1637 | case OP_PREDEC: | |
1638 | case OP_POSTINC: | |
1639 | case OP_POSTDEC: | |
1640 | case OP_I_PREINC: | |
1641 | case OP_I_PREDEC: | |
1642 | case OP_I_POSTINC: | |
1643 | case OP_I_POSTDEC: | |
1644 | case OP_POW: | |
1645 | case OP_MULTIPLY: | |
1646 | case OP_DIVIDE: | |
1647 | case OP_MODULO: | |
1648 | case OP_REPEAT: | |
1649 | case OP_ADD: | |
1650 | case OP_SUBTRACT: | |
1651 | case OP_I_MULTIPLY: | |
1652 | case OP_I_DIVIDE: | |
1653 | case OP_I_MODULO: | |
1654 | case OP_I_ADD: | |
1655 | case OP_I_SUBTRACT: | |
1656 | case OP_LEFT_SHIFT: | |
1657 | case OP_RIGHT_SHIFT: | |
1658 | case OP_BIT_AND: | |
1659 | case OP_BIT_XOR: | |
1660 | case OP_BIT_OR: | |
1661 | case OP_CONCAT: | |
1662 | case OP_SUBST: | |
1663 | case OP_TRANS: | |
49e9fbe6 GS |
1664 | case OP_READ: |
1665 | case OP_SYSREAD: | |
1666 | case OP_RECV: | |
bf4b1e52 GS |
1667 | case OP_ANDASSIGN: |
1668 | case OP_ORASSIGN: | |
3fe9a6f1 | 1669 | return TRUE; |
1670 | default: | |
1671 | return FALSE; | |
1672 | } | |
1673 | } | |
1674 | ||
35cd451c | 1675 | STATIC bool |
cea2e8a9 | 1676 | S_is_handle_constructor(pTHX_ OP *o, I32 argnum) |
35cd451c GS |
1677 | { |
1678 | switch (o->op_type) { | |
1679 | case OP_PIPE_OP: | |
1680 | case OP_SOCKPAIR: | |
1681 | if (argnum == 2) | |
1682 | return TRUE; | |
1683 | /* FALL THROUGH */ | |
1684 | case OP_SYSOPEN: | |
1685 | case OP_OPEN: | |
ded8aa31 | 1686 | case OP_SELECT: /* XXX c.f. SelectSaver.pm */ |
35cd451c GS |
1687 | case OP_SOCKET: |
1688 | case OP_OPEN_DIR: | |
1689 | case OP_ACCEPT: | |
1690 | if (argnum == 1) | |
1691 | return TRUE; | |
1692 | /* FALL THROUGH */ | |
1693 | default: | |
1694 | return FALSE; | |
1695 | } | |
1696 | } | |
1697 | ||
463ee0b2 | 1698 | OP * |
864dbfa3 | 1699 | Perl_refkids(pTHX_ OP *o, I32 type) |
463ee0b2 LW |
1700 | { |
1701 | OP *kid; | |
11343788 MB |
1702 | if (o && o->op_flags & OPf_KIDS) { |
1703 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
463ee0b2 LW |
1704 | ref(kid, type); |
1705 | } | |
11343788 | 1706 | return o; |
463ee0b2 LW |
1707 | } |
1708 | ||
1709 | OP * | |
864dbfa3 | 1710 | Perl_ref(pTHX_ OP *o, I32 type) |
463ee0b2 LW |
1711 | { |
1712 | OP *kid; | |
463ee0b2 | 1713 | |
3280af22 | 1714 | if (!o || PL_error_count) |
11343788 | 1715 | return o; |
463ee0b2 | 1716 | |
11343788 | 1717 | switch (o->op_type) { |
a0d0e21e | 1718 | case OP_ENTERSUB: |
afebc493 | 1719 | if ((type == OP_EXISTS || type == OP_DEFINED || type == OP_LOCK) && |
11343788 MB |
1720 | !(o->op_flags & OPf_STACKED)) { |
1721 | o->op_type = OP_RV2CV; /* entersub => rv2cv */ | |
22c35a8c | 1722 | o->op_ppaddr = PL_ppaddr[OP_RV2CV]; |
11343788 MB |
1723 | assert(cUNOPo->op_first->op_type == OP_NULL); |
1724 | null(((LISTOP*)cUNOPo->op_first)->op_first); /* disable pushmark */ | |
1725 | o->op_flags |= OPf_SPECIAL; | |
8990e307 LW |
1726 | } |
1727 | break; | |
aeea060c | 1728 | |
463ee0b2 | 1729 | case OP_COND_EXPR: |
11343788 | 1730 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
463ee0b2 LW |
1731 | ref(kid, type); |
1732 | break; | |
8990e307 | 1733 | case OP_RV2SV: |
35cd451c GS |
1734 | if (type == OP_DEFINED) |
1735 | o->op_flags |= OPf_SPECIAL; /* don't create GV */ | |
11343788 | 1736 | ref(cUNOPo->op_first, o->op_type); |
4633a7c4 LW |
1737 | /* FALL THROUGH */ |
1738 | case OP_PADSV: | |
5f05dabc | 1739 | if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) { |
5dc0d613 MB |
1740 | o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV |
1741 | : type == OP_RV2HV ? OPpDEREF_HV | |
1742 | : OPpDEREF_SV); | |
11343788 | 1743 | o->op_flags |= OPf_MOD; |
a0d0e21e | 1744 | } |
8990e307 LW |
1745 | break; |
1746 | ||
2faa37cc | 1747 | case OP_THREADSV: |
a863c7d1 MB |
1748 | o->op_flags |= OPf_MOD; /* XXX ??? */ |
1749 | break; | |
1750 | ||
463ee0b2 LW |
1751 | case OP_RV2AV: |
1752 | case OP_RV2HV: | |
aeea060c | 1753 | o->op_flags |= OPf_REF; |
8990e307 | 1754 | /* FALL THROUGH */ |
463ee0b2 | 1755 | case OP_RV2GV: |
35cd451c GS |
1756 | if (type == OP_DEFINED) |
1757 | o->op_flags |= OPf_SPECIAL; /* don't create GV */ | |
11343788 | 1758 | ref(cUNOPo->op_first, o->op_type); |
463ee0b2 | 1759 | break; |
8990e307 | 1760 | |
463ee0b2 LW |
1761 | case OP_PADAV: |
1762 | case OP_PADHV: | |
aeea060c | 1763 | o->op_flags |= OPf_REF; |
79072805 | 1764 | break; |
aeea060c | 1765 | |
8990e307 | 1766 | case OP_SCALAR: |
79072805 | 1767 | case OP_NULL: |
11343788 | 1768 | if (!(o->op_flags & OPf_KIDS)) |
463ee0b2 | 1769 | break; |
11343788 | 1770 | ref(cBINOPo->op_first, type); |
79072805 LW |
1771 | break; |
1772 | case OP_AELEM: | |
1773 | case OP_HELEM: | |
11343788 | 1774 | ref(cBINOPo->op_first, o->op_type); |
5f05dabc | 1775 | if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) { |
5dc0d613 MB |
1776 | o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV |
1777 | : type == OP_RV2HV ? OPpDEREF_HV | |
1778 | : OPpDEREF_SV); | |
11343788 | 1779 | o->op_flags |= OPf_MOD; |
8990e307 | 1780 | } |
79072805 LW |
1781 | break; |
1782 | ||
463ee0b2 | 1783 | case OP_SCOPE: |
79072805 LW |
1784 | case OP_LEAVE: |
1785 | case OP_ENTER: | |
8990e307 | 1786 | case OP_LIST: |
11343788 | 1787 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1788 | break; |
11343788 | 1789 | ref(cLISTOPo->op_last, type); |
79072805 | 1790 | break; |
a0d0e21e LW |
1791 | default: |
1792 | break; | |
79072805 | 1793 | } |
11343788 | 1794 | return scalar(o); |
8990e307 | 1795 | |
79072805 LW |
1796 | } |
1797 | ||
09bef843 SB |
1798 | STATIC OP * |
1799 | S_dup_attrlist(pTHX_ OP *o) | |
1800 | { | |
1801 | OP *rop = Nullop; | |
1802 | ||
1803 | /* An attrlist is either a simple OP_CONST or an OP_LIST with kids, | |
1804 | * where the first kid is OP_PUSHMARK and the remaining ones | |
1805 | * are OP_CONST. We need to push the OP_CONST values. | |
1806 | */ | |
1807 | if (o->op_type == OP_CONST) | |
1808 | rop = newSVOP(OP_CONST, o->op_flags, SvREFCNT_inc(cSVOPo->op_sv)); | |
1809 | else { | |
1810 | assert((o->op_type == OP_LIST) && (o->op_flags & OPf_KIDS)); | |
1811 | for (o = cLISTOPo->op_first; o; o=o->op_sibling) { | |
1812 | if (o->op_type == OP_CONST) | |
1813 | rop = append_elem(OP_LIST, rop, | |
1814 | newSVOP(OP_CONST, o->op_flags, | |
1815 | SvREFCNT_inc(cSVOPo->op_sv))); | |
1816 | } | |
1817 | } | |
1818 | return rop; | |
1819 | } | |
1820 | ||
1821 | STATIC void | |
1822 | S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs) | |
1823 | { | |
09bef843 SB |
1824 | SV *stashsv; |
1825 | ||
1826 | /* fake up C<use attributes $pkg,$rv,@attrs> */ | |
1827 | ENTER; /* need to protect against side-effects of 'use' */ | |
1828 | SAVEINT(PL_expect); | |
1829 | if (stash && HvNAME(stash)) | |
1830 | stashsv = newSVpv(HvNAME(stash), 0); | |
1831 | else | |
1832 | stashsv = &PL_sv_no; | |
e4783991 | 1833 | |
09bef843 | 1834 | #define ATTRSMODULE "attributes" |
e4783991 GS |
1835 | |
1836 | Perl_load_module(aTHX_ PERL_LOADMOD_IMPORT_OPS, | |
1837 | newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1), | |
1838 | Nullsv, | |
1839 | prepend_elem(OP_LIST, | |
1840 | newSVOP(OP_CONST, 0, stashsv), | |
1841 | prepend_elem(OP_LIST, | |
1842 | newSVOP(OP_CONST, 0, | |
1843 | newRV(target)), | |
1844 | dup_attrlist(attrs)))); | |
09bef843 SB |
1845 | LEAVE; |
1846 | } | |
1847 | ||
1848 | STATIC OP * | |
1849 | S_my_kid(pTHX_ OP *o, OP *attrs) | |
93a17b20 LW |
1850 | { |
1851 | OP *kid; | |
93a17b20 LW |
1852 | I32 type; |
1853 | ||
3280af22 | 1854 | if (!o || PL_error_count) |
11343788 | 1855 | return o; |
93a17b20 | 1856 | |
11343788 | 1857 | type = o->op_type; |
93a17b20 | 1858 | if (type == OP_LIST) { |
11343788 | 1859 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
09bef843 | 1860 | my_kid(kid, attrs); |
dab48698 | 1861 | } else if (type == OP_UNDEF) { |
7766148a | 1862 | return o; |
77ca0c92 LW |
1863 | } else if (type == OP_RV2SV || /* "our" declaration */ |
1864 | type == OP_RV2AV || | |
1865 | type == OP_RV2HV) { /* XXX does this let anything illegal in? */ | |
192587c2 | 1866 | o->op_private |= OPpOUR_INTRO; |
77ca0c92 | 1867 | return o; |
dab48698 | 1868 | } else if (type != OP_PADSV && |
93a17b20 LW |
1869 | type != OP_PADAV && |
1870 | type != OP_PADHV && | |
1871 | type != OP_PUSHMARK) | |
1872 | { | |
eb64745e GS |
1873 | yyerror(Perl_form(aTHX_ "Can't declare %s in \"%s\"", |
1874 | PL_op_desc[o->op_type], | |
1875 | PL_in_my == KEY_our ? "our" : "my")); | |
11343788 | 1876 | return o; |
93a17b20 | 1877 | } |
09bef843 SB |
1878 | else if (attrs && type != OP_PUSHMARK) { |
1879 | HV *stash; | |
1880 | SV *padsv; | |
1881 | SV **namesvp; | |
1882 | ||
eb64745e GS |
1883 | PL_in_my = FALSE; |
1884 | PL_in_my_stash = Nullhv; | |
1885 | ||
09bef843 SB |
1886 | /* check for C<my Dog $spot> when deciding package */ |
1887 | namesvp = av_fetch(PL_comppad_name, o->op_targ, FALSE); | |
1888 | if (namesvp && *namesvp && SvOBJECT(*namesvp) && HvNAME(SvSTASH(*namesvp))) | |
1889 | stash = SvSTASH(*namesvp); | |
1890 | else | |
1891 | stash = PL_curstash; | |
1892 | padsv = PAD_SV(o->op_targ); | |
1893 | apply_attrs(stash, padsv, attrs); | |
1894 | } | |
11343788 MB |
1895 | o->op_flags |= OPf_MOD; |
1896 | o->op_private |= OPpLVAL_INTRO; | |
1897 | return o; | |
93a17b20 LW |
1898 | } |
1899 | ||
1900 | OP * | |
09bef843 SB |
1901 | Perl_my_attrs(pTHX_ OP *o, OP *attrs) |
1902 | { | |
1903 | if (o->op_flags & OPf_PARENS) | |
1904 | list(o); | |
09bef843 SB |
1905 | if (attrs) |
1906 | SAVEFREEOP(attrs); | |
eb64745e GS |
1907 | o = my_kid(o, attrs); |
1908 | PL_in_my = FALSE; | |
1909 | PL_in_my_stash = Nullhv; | |
1910 | return o; | |
09bef843 SB |
1911 | } |
1912 | ||
1913 | OP * | |
1914 | Perl_my(pTHX_ OP *o) | |
1915 | { | |
1916 | return my_kid(o, Nullop); | |
1917 | } | |
1918 | ||
1919 | OP * | |
864dbfa3 | 1920 | Perl_sawparens(pTHX_ OP *o) |
79072805 LW |
1921 | { |
1922 | if (o) | |
1923 | o->op_flags |= OPf_PARENS; | |
1924 | return o; | |
1925 | } | |
1926 | ||
1927 | OP * | |
864dbfa3 | 1928 | Perl_bind_match(pTHX_ I32 type, OP *left, OP *right) |
79072805 | 1929 | { |
d008e5eb | 1930 | dTHR; |
11343788 | 1931 | OP *o; |
79072805 | 1932 | |
e476b1b5 | 1933 | if (ckWARN(WARN_MISC) && |
599cee73 PM |
1934 | (left->op_type == OP_RV2AV || |
1935 | left->op_type == OP_RV2HV || | |
1936 | left->op_type == OP_PADAV || | |
1937 | left->op_type == OP_PADHV)) { | |
22c35a8c | 1938 | char *desc = PL_op_desc[(right->op_type == OP_SUBST || |
599cee73 PM |
1939 | right->op_type == OP_TRANS) |
1940 | ? right->op_type : OP_MATCH]; | |
dff6d3cd GS |
1941 | const char *sample = ((left->op_type == OP_RV2AV || |
1942 | left->op_type == OP_PADAV) | |
1943 | ? "@array" : "%hash"); | |
e476b1b5 | 1944 | Perl_warner(aTHX_ WARN_MISC, |
599cee73 PM |
1945 | "Applying %s to %s will act on scalar(%s)", |
1946 | desc, sample, sample); | |
2ae324a7 | 1947 | } |
1948 | ||
79072805 LW |
1949 | if (right->op_type == OP_MATCH || |
1950 | right->op_type == OP_SUBST || | |
1951 | right->op_type == OP_TRANS) { | |
1952 | right->op_flags |= OPf_STACKED; | |
1953 | if (right->op_type != OP_MATCH) | |
463ee0b2 | 1954 | left = mod(left, right->op_type); |
79072805 | 1955 | if (right->op_type == OP_TRANS) |
11343788 | 1956 | o = newBINOP(OP_NULL, OPf_STACKED, scalar(left), right); |
79072805 | 1957 | else |
11343788 | 1958 | o = prepend_elem(right->op_type, scalar(left), right); |
79072805 | 1959 | if (type == OP_NOT) |
11343788 MB |
1960 | return newUNOP(OP_NOT, 0, scalar(o)); |
1961 | return o; | |
79072805 LW |
1962 | } |
1963 | else | |
1964 | return bind_match(type, left, | |
1965 | pmruntime(newPMOP(OP_MATCH, 0), right, Nullop)); | |
1966 | } | |
1967 | ||
1968 | OP * | |
864dbfa3 | 1969 | Perl_invert(pTHX_ OP *o) |
79072805 | 1970 | { |
11343788 MB |
1971 | if (!o) |
1972 | return o; | |
79072805 | 1973 | /* XXX need to optimize away NOT NOT here? Or do we let optimizer do it? */ |
11343788 | 1974 | return newUNOP(OP_NOT, OPf_SPECIAL, scalar(o)); |
79072805 LW |
1975 | } |
1976 | ||
1977 | OP * | |
864dbfa3 | 1978 | Perl_scope(pTHX_ OP *o) |
79072805 LW |
1979 | { |
1980 | if (o) { | |
3280af22 | 1981 | if (o->op_flags & OPf_PARENS || PERLDB_NOOPT || PL_tainting) { |
463ee0b2 LW |
1982 | o = prepend_elem(OP_LINESEQ, newOP(OP_ENTER, 0), o); |
1983 | o->op_type = OP_LEAVE; | |
22c35a8c | 1984 | o->op_ppaddr = PL_ppaddr[OP_LEAVE]; |
463ee0b2 LW |
1985 | } |
1986 | else { | |
1987 | if (o->op_type == OP_LINESEQ) { | |
1988 | OP *kid; | |
1989 | o->op_type = OP_SCOPE; | |
22c35a8c | 1990 | o->op_ppaddr = PL_ppaddr[OP_SCOPE]; |
c3ed7a6a GS |
1991 | kid = ((LISTOP*)o)->op_first; |
1992 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) | |
1993 | null(kid); | |
463ee0b2 LW |
1994 | } |
1995 | else | |
748a9306 | 1996 | o = newLISTOP(OP_SCOPE, 0, o, Nullop); |
463ee0b2 | 1997 | } |
79072805 LW |
1998 | } |
1999 | return o; | |
2000 | } | |
2001 | ||
b3ac6de7 | 2002 | void |
864dbfa3 | 2003 | Perl_save_hints(pTHX) |
b3ac6de7 | 2004 | { |
3280af22 NIS |
2005 | SAVEI32(PL_hints); |
2006 | SAVESPTR(GvHV(PL_hintgv)); | |
2007 | GvHV(PL_hintgv) = newHVhv(GvHV(PL_hintgv)); | |
2008 | SAVEFREESV(GvHV(PL_hintgv)); | |
b3ac6de7 IZ |
2009 | } |
2010 | ||
a0d0e21e | 2011 | int |
864dbfa3 | 2012 | Perl_block_start(pTHX_ int full) |
79072805 | 2013 | { |
11343788 | 2014 | dTHR; |
3280af22 | 2015 | int retval = PL_savestack_ix; |
b3ac6de7 | 2016 | |
3280af22 | 2017 | SAVEI32(PL_comppad_name_floor); |
43d4d5c6 GS |
2018 | PL_comppad_name_floor = AvFILLp(PL_comppad_name); |
2019 | if (full) | |
2020 | PL_comppad_name_fill = PL_comppad_name_floor; | |
2021 | if (PL_comppad_name_floor < 0) | |
2022 | PL_comppad_name_floor = 0; | |
3280af22 NIS |
2023 | SAVEI32(PL_min_intro_pending); |
2024 | SAVEI32(PL_max_intro_pending); | |
2025 | PL_min_intro_pending = 0; | |
2026 | SAVEI32(PL_comppad_name_fill); | |
2027 | SAVEI32(PL_padix_floor); | |
2028 | PL_padix_floor = PL_padix; | |
2029 | PL_pad_reset_pending = FALSE; | |
b3ac6de7 | 2030 | SAVEHINTS(); |
3280af22 | 2031 | PL_hints &= ~HINT_BLOCK_SCOPE; |
7766f137 | 2032 | SAVESPTR(PL_compiling.cop_warnings); |
0453d815 | 2033 | if (! specialWARN(PL_compiling.cop_warnings)) { |
599cee73 PM |
2034 | PL_compiling.cop_warnings = newSVsv(PL_compiling.cop_warnings) ; |
2035 | SAVEFREESV(PL_compiling.cop_warnings) ; | |
2036 | } | |
a0d0e21e LW |
2037 | return retval; |
2038 | } | |
2039 | ||
2040 | OP* | |
864dbfa3 | 2041 | Perl_block_end(pTHX_ I32 floor, OP *seq) |
a0d0e21e | 2042 | { |
11343788 | 2043 | dTHR; |
3280af22 | 2044 | int needblockscope = PL_hints & HINT_BLOCK_SCOPE; |
a0d0e21e | 2045 | OP* retval = scalarseq(seq); |
a0d0e21e | 2046 | LEAVE_SCOPE(floor); |
3280af22 | 2047 | PL_pad_reset_pending = FALSE; |
e24b16f9 | 2048 | PL_compiling.op_private = PL_hints; |
a0d0e21e | 2049 | if (needblockscope) |
3280af22 NIS |
2050 | PL_hints |= HINT_BLOCK_SCOPE; /* propagate out */ |
2051 | pad_leavemy(PL_comppad_name_fill); | |
2052 | PL_cop_seqmax++; | |
a0d0e21e LW |
2053 | return retval; |
2054 | } | |
2055 | ||
76e3520e | 2056 | STATIC OP * |
cea2e8a9 | 2057 | S_newDEFSVOP(pTHX) |
54b9620d MB |
2058 | { |
2059 | #ifdef USE_THREADS | |
2060 | OP *o = newOP(OP_THREADSV, 0); | |
2061 | o->op_targ = find_threadsv("_"); | |
2062 | return o; | |
2063 | #else | |
3280af22 | 2064 | return newSVREF(newGVOP(OP_GV, 0, PL_defgv)); |
54b9620d MB |
2065 | #endif /* USE_THREADS */ |
2066 | } | |
2067 | ||
a0d0e21e | 2068 | void |
864dbfa3 | 2069 | Perl_newPROG(pTHX_ OP *o) |
a0d0e21e | 2070 | { |
11343788 | 2071 | dTHR; |
3280af22 | 2072 | if (PL_in_eval) { |
b295d113 TH |
2073 | if (PL_eval_root) |
2074 | return; | |
faef0170 HS |
2075 | PL_eval_root = newUNOP(OP_LEAVEEVAL, |
2076 | ((PL_in_eval & EVAL_KEEPERR) | |
2077 | ? OPf_SPECIAL : 0), o); | |
3280af22 | 2078 | PL_eval_start = linklist(PL_eval_root); |
7934575e GS |
2079 | PL_eval_root->op_private |= OPpREFCOUNTED; |
2080 | OpREFCNT_set(PL_eval_root, 1); | |
3280af22 NIS |
2081 | PL_eval_root->op_next = 0; |
2082 | peep(PL_eval_start); | |
a0d0e21e LW |
2083 | } |
2084 | else { | |
5dc0d613 | 2085 | if (!o) |
a0d0e21e | 2086 | return; |
3280af22 NIS |
2087 | PL_main_root = scope(sawparens(scalarvoid(o))); |
2088 | PL_curcop = &PL_compiling; | |
2089 | PL_main_start = LINKLIST(PL_main_root); | |
7934575e GS |
2090 | PL_main_root->op_private |= OPpREFCOUNTED; |
2091 | OpREFCNT_set(PL_main_root, 1); | |
3280af22 NIS |
2092 | PL_main_root->op_next = 0; |
2093 | peep(PL_main_start); | |
2094 | PL_compcv = 0; | |
3841441e | 2095 | |
4fdae800 | 2096 | /* Register with debugger */ |
84902520 | 2097 | if (PERLDB_INTER) { |
864dbfa3 | 2098 | CV *cv = get_cv("DB::postponed", FALSE); |
3841441e CS |
2099 | if (cv) { |
2100 | dSP; | |
924508f0 | 2101 | PUSHMARK(SP); |
cc49e20b | 2102 | XPUSHs((SV*)CopFILEGV(&PL_compiling)); |
3841441e | 2103 | PUTBACK; |
864dbfa3 | 2104 | call_sv((SV*)cv, G_DISCARD); |
3841441e CS |
2105 | } |
2106 | } | |
79072805 | 2107 | } |
79072805 LW |
2108 | } |
2109 | ||
2110 | OP * | |
864dbfa3 | 2111 | Perl_localize(pTHX_ OP *o, I32 lex) |
79072805 LW |
2112 | { |
2113 | if (o->op_flags & OPf_PARENS) | |
2114 | list(o); | |
8990e307 | 2115 | else { |
d008e5eb | 2116 | dTHR; |
599cee73 | 2117 | if (ckWARN(WARN_PARENTHESIS) && PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == ',') { |
8990e307 | 2118 | char *s; |
834a4ddd | 2119 | for (s = PL_bufptr; *s && (isALNUM(*s) || (*s & 0x80) || strchr("@$%, ",*s)); s++) ; |
a0d0e21e | 2120 | if (*s == ';' || *s == '=') |
eb64745e GS |
2121 | Perl_warner(aTHX_ WARN_PARENTHESIS, |
2122 | "Parentheses missing around \"%s\" list", | |
2123 | lex ? (PL_in_my == KEY_our ? "our" : "my") : "local"); | |
8990e307 LW |
2124 | } |
2125 | } | |
93a17b20 | 2126 | if (lex) |
eb64745e | 2127 | o = my(o); |
93a17b20 | 2128 | else |
eb64745e GS |
2129 | o = mod(o, OP_NULL); /* a bit kludgey */ |
2130 | PL_in_my = FALSE; | |
2131 | PL_in_my_stash = Nullhv; | |
2132 | return o; | |
79072805 LW |
2133 | } |
2134 | ||
2135 | OP * | |
864dbfa3 | 2136 | Perl_jmaybe(pTHX_ OP *o) |
79072805 LW |
2137 | { |
2138 | if (o->op_type == OP_LIST) { | |
554b3eca MB |
2139 | OP *o2; |
2140 | #ifdef USE_THREADS | |
2faa37cc | 2141 | o2 = newOP(OP_THREADSV, 0); |
54b9620d | 2142 | o2->op_targ = find_threadsv(";"); |
554b3eca MB |
2143 | #else |
2144 | o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))), | |
2145 | #endif /* USE_THREADS */ | |
2146 | o = convert(OP_JOIN, 0, prepend_elem(OP_LIST, o2, o)); | |
79072805 LW |
2147 | } |
2148 | return o; | |
2149 | } | |
2150 | ||
2151 | OP * | |
864dbfa3 | 2152 | Perl_fold_constants(pTHX_ register OP *o) |
79072805 | 2153 | { |
11343788 | 2154 | dTHR; |
79072805 LW |
2155 | register OP *curop; |
2156 | I32 type = o->op_type; | |
748a9306 | 2157 | SV *sv; |
79072805 | 2158 | |
22c35a8c | 2159 | if (PL_opargs[type] & OA_RETSCALAR) |
79072805 | 2160 | scalar(o); |
b162f9ea | 2161 | if (PL_opargs[type] & OA_TARGET && !o->op_targ) |
ed6116ce | 2162 | o->op_targ = pad_alloc(type, SVs_PADTMP); |
79072805 | 2163 | |
eac055e9 GS |
2164 | /* integerize op, unless it happens to be C<-foo>. |
2165 | * XXX should pp_i_negate() do magic string negation instead? */ | |
2166 | if ((PL_opargs[type] & OA_OTHERINT) && (PL_hints & HINT_INTEGER) | |
2167 | && !(type == OP_NEGATE && cUNOPo->op_first->op_type == OP_CONST | |
2168 | && (cUNOPo->op_first->op_private & OPpCONST_BARE))) | |
2169 | { | |
22c35a8c | 2170 | o->op_ppaddr = PL_ppaddr[type = ++(o->op_type)]; |
eac055e9 | 2171 | } |
85e6fe83 | 2172 | |
22c35a8c | 2173 | if (!(PL_opargs[type] & OA_FOLDCONST)) |
79072805 LW |
2174 | goto nope; |
2175 | ||
de939608 | 2176 | switch (type) { |
7a52d87a GS |
2177 | case OP_NEGATE: |
2178 | /* XXX might want a ck_negate() for this */ | |
2179 | cUNOPo->op_first->op_private &= ~OPpCONST_STRICT; | |
2180 | break; | |
de939608 CS |
2181 | case OP_SPRINTF: |
2182 | case OP_UCFIRST: | |
2183 | case OP_LCFIRST: | |
2184 | case OP_UC: | |
2185 | case OP_LC: | |
69dcf70c MB |
2186 | case OP_SLT: |
2187 | case OP_SGT: | |
2188 | case OP_SLE: | |
2189 | case OP_SGE: | |
2190 | case OP_SCMP: | |
2191 | ||
de939608 CS |
2192 | if (o->op_private & OPpLOCALE) |
2193 | goto nope; | |
2194 | } | |
2195 | ||
3280af22 | 2196 | if (PL_error_count) |
a0d0e21e LW |
2197 | goto nope; /* Don't try to run w/ errors */ |
2198 | ||
79072805 | 2199 | for (curop = LINKLIST(o); curop != o; curop = LINKLIST(curop)) { |
11fa937b GS |
2200 | if ((curop->op_type != OP_CONST || |
2201 | (curop->op_private & OPpCONST_BARE)) && | |
7a52d87a GS |
2202 | curop->op_type != OP_LIST && |
2203 | curop->op_type != OP_SCALAR && | |
2204 | curop->op_type != OP_NULL && | |
2205 | curop->op_type != OP_PUSHMARK) | |
2206 | { | |
79072805 LW |
2207 | goto nope; |
2208 | } | |
2209 | } | |
2210 | ||
2211 | curop = LINKLIST(o); | |
2212 | o->op_next = 0; | |
533c011a | 2213 | PL_op = curop; |
cea2e8a9 | 2214 | CALLRUNOPS(aTHX); |
3280af22 | 2215 | sv = *(PL_stack_sp--); |
748a9306 | 2216 | if (o->op_targ && sv == PAD_SV(o->op_targ)) /* grab pad temp? */ |
79072805 | 2217 | pad_swipe(o->op_targ); |
748a9306 LW |
2218 | else if (SvTEMP(sv)) { /* grab mortal temp? */ |
2219 | (void)SvREFCNT_inc(sv); | |
2220 | SvTEMP_off(sv); | |
85e6fe83 | 2221 | } |
79072805 LW |
2222 | op_free(o); |
2223 | if (type == OP_RV2GV) | |
b1cb66bf | 2224 | return newGVOP(OP_GV, 0, (GV*)sv); |
748a9306 | 2225 | else { |
ee580363 GS |
2226 | /* try to smush double to int, but don't smush -2.0 to -2 */ |
2227 | if ((SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK)) == SVf_NOK && | |
2228 | type != OP_NEGATE) | |
2229 | { | |
748a9306 | 2230 | IV iv = SvIV(sv); |
65202027 | 2231 | if ((NV)iv == SvNV(sv)) { |
748a9306 LW |
2232 | SvREFCNT_dec(sv); |
2233 | sv = newSViv(iv); | |
2234 | } | |
b1cb66bf | 2235 | else |
2236 | SvIOK_off(sv); /* undo SvIV() damage */ | |
748a9306 LW |
2237 | } |
2238 | return newSVOP(OP_CONST, 0, sv); | |
2239 | } | |
aeea060c | 2240 | |
79072805 | 2241 | nope: |
22c35a8c | 2242 | if (!(PL_opargs[type] & OA_OTHERINT)) |
79072805 | 2243 | return o; |
79072805 | 2244 | |
3280af22 | 2245 | if (!(PL_hints & HINT_INTEGER)) { |
4bb9f687 GS |
2246 | if (type == OP_MODULO |
2247 | || type == OP_DIVIDE | |
2248 | || !(o->op_flags & OPf_KIDS)) | |
2249 | { | |
85e6fe83 | 2250 | return o; |
4bb9f687 | 2251 | } |
85e6fe83 LW |
2252 | |
2253 | for (curop = ((UNOP*)o)->op_first; curop; curop = curop->op_sibling) { | |
2254 | if (curop->op_type == OP_CONST) { | |
b1cb66bf | 2255 | if (SvIOK(((SVOP*)curop)->op_sv)) |
85e6fe83 LW |
2256 | continue; |
2257 | return o; | |
2258 | } | |
22c35a8c | 2259 | if (PL_opargs[curop->op_type] & OA_RETINTEGER) |
79072805 LW |
2260 | continue; |
2261 | return o; | |
2262 | } | |
22c35a8c | 2263 | o->op_ppaddr = PL_ppaddr[++(o->op_type)]; |
79072805 LW |
2264 | } |
2265 | ||
79072805 LW |
2266 | return o; |
2267 | } | |
2268 | ||
2269 | OP * | |
864dbfa3 | 2270 | Perl_gen_constant_list(pTHX_ register OP *o) |
79072805 | 2271 | { |
11343788 | 2272 | dTHR; |
79072805 | 2273 | register OP *curop; |
3280af22 | 2274 | I32 oldtmps_floor = PL_tmps_floor; |
79072805 | 2275 | |
a0d0e21e | 2276 | list(o); |
3280af22 | 2277 | if (PL_error_count) |
a0d0e21e LW |
2278 | return o; /* Don't attempt to run with errors */ |
2279 | ||
533c011a | 2280 | PL_op = curop = LINKLIST(o); |
a0d0e21e | 2281 | o->op_next = 0; |
7d4045d4 | 2282 | peep(curop); |
cea2e8a9 GS |
2283 | pp_pushmark(); |
2284 | CALLRUNOPS(aTHX); | |
533c011a | 2285 | PL_op = curop; |
cea2e8a9 | 2286 | pp_anonlist(); |
3280af22 | 2287 | PL_tmps_floor = oldtmps_floor; |
79072805 LW |
2288 | |
2289 | o->op_type = OP_RV2AV; | |
22c35a8c | 2290 | o->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
79072805 | 2291 | curop = ((UNOP*)o)->op_first; |
3280af22 | 2292 | ((UNOP*)o)->op_first = newSVOP(OP_CONST, 0, SvREFCNT_inc(*PL_stack_sp--)); |
79072805 | 2293 | op_free(curop); |
79072805 LW |
2294 | linklist(o); |
2295 | return list(o); | |
2296 | } | |
2297 | ||
2298 | OP * | |
864dbfa3 | 2299 | Perl_convert(pTHX_ I32 type, I32 flags, OP *o) |
79072805 LW |
2300 | { |
2301 | OP *kid; | |
a0d0e21e | 2302 | OP *last = 0; |
79072805 | 2303 | |
11343788 MB |
2304 | if (!o || o->op_type != OP_LIST) |
2305 | o = newLISTOP(OP_LIST, 0, o, Nullop); | |
748a9306 | 2306 | else |
5dc0d613 | 2307 | o->op_flags &= ~OPf_WANT; |
79072805 | 2308 | |
22c35a8c | 2309 | if (!(PL_opargs[type] & OA_MARK)) |
11343788 | 2310 | null(cLISTOPo->op_first); |
8990e307 | 2311 | |
11343788 | 2312 | o->op_type = type; |
22c35a8c | 2313 | o->op_ppaddr = PL_ppaddr[type]; |
11343788 | 2314 | o->op_flags |= flags; |
79072805 | 2315 | |
11343788 MB |
2316 | o = CHECKOP(type, o); |
2317 | if (o->op_type != type) | |
2318 | return o; | |
79072805 | 2319 | |
11343788 | 2320 | if (cLISTOPo->op_children < 7) { |
79072805 | 2321 | /* XXX do we really need to do this if we're done appending?? */ |
11343788 | 2322 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
79072805 | 2323 | last = kid; |
11343788 | 2324 | cLISTOPo->op_last = last; /* in case check substituted last arg */ |
79072805 LW |
2325 | } |
2326 | ||
11343788 | 2327 | return fold_constants(o); |
79072805 LW |
2328 | } |
2329 | ||
2330 | /* List constructors */ | |
2331 | ||
2332 | OP * | |
864dbfa3 | 2333 | Perl_append_elem(pTHX_ I32 type, OP *first, OP *last) |
79072805 LW |
2334 | { |
2335 | if (!first) | |
2336 | return last; | |
8990e307 LW |
2337 | |
2338 | if (!last) | |
79072805 | 2339 | return first; |
8990e307 | 2340 | |
155aba94 GS |
2341 | if (first->op_type != type |
2342 | || (type == OP_LIST && (first->op_flags & OPf_PARENS))) | |
2343 | { | |
2344 | return newLISTOP(type, 0, first, last); | |
2345 | } | |
79072805 | 2346 | |
a0d0e21e LW |
2347 | if (first->op_flags & OPf_KIDS) |
2348 | ((LISTOP*)first)->op_last->op_sibling = last; | |
2349 | else { | |
2350 | first->op_flags |= OPf_KIDS; | |
2351 | ((LISTOP*)first)->op_first = last; | |
2352 | } | |
2353 | ((LISTOP*)first)->op_last = last; | |
2354 | ((LISTOP*)first)->op_children++; | |
2355 | return first; | |
79072805 LW |
2356 | } |
2357 | ||
2358 | OP * | |
864dbfa3 | 2359 | Perl_append_list(pTHX_ I32 type, LISTOP *first, LISTOP *last) |
79072805 LW |
2360 | { |
2361 | if (!first) | |
2362 | return (OP*)last; | |
8990e307 LW |
2363 | |
2364 | if (!last) | |
79072805 | 2365 | return (OP*)first; |
8990e307 LW |
2366 | |
2367 | if (first->op_type != type) | |
79072805 | 2368 | return prepend_elem(type, (OP*)first, (OP*)last); |
8990e307 LW |
2369 | |
2370 | if (last->op_type != type) | |
79072805 LW |
2371 | return append_elem(type, (OP*)first, (OP*)last); |
2372 | ||
2373 | first->op_last->op_sibling = last->op_first; | |
2374 | first->op_last = last->op_last; | |
2375 | first->op_children += last->op_children; | |
2376 | if (first->op_children) | |
acb74605 | 2377 | first->op_flags |= OPf_KIDS; |
b7dc083c NIS |
2378 | |
2379 | #ifdef PL_OP_SLAB_ALLOC | |
2380 | #else | |
2381 | Safefree(last); | |
2382 | #endif | |
79072805 LW |
2383 | return (OP*)first; |
2384 | } | |
2385 | ||
2386 | OP * | |
864dbfa3 | 2387 | Perl_prepend_elem(pTHX_ I32 type, OP *first, OP *last) |
79072805 LW |
2388 | { |
2389 | if (!first) | |
2390 | return last; | |
8990e307 LW |
2391 | |
2392 | if (!last) | |
79072805 | 2393 | return first; |
8990e307 LW |
2394 | |
2395 | if (last->op_type == type) { | |
2396 | if (type == OP_LIST) { /* already a PUSHMARK there */ | |
2397 | first->op_sibling = ((LISTOP*)last)->op_first->op_sibling; | |
2398 | ((LISTOP*)last)->op_first->op_sibling = first; | |
2399 | } | |
2400 | else { | |
2401 | if (!(last->op_flags & OPf_KIDS)) { | |
2402 | ((LISTOP*)last)->op_last = first; | |
2403 | last->op_flags |= OPf_KIDS; | |
2404 | } | |
2405 | first->op_sibling = ((LISTOP*)last)->op_first; | |
2406 | ((LISTOP*)last)->op_first = first; | |
79072805 | 2407 | } |
79072805 LW |
2408 | ((LISTOP*)last)->op_children++; |
2409 | return last; | |
2410 | } | |
2411 | ||
2412 | return newLISTOP(type, 0, first, last); | |
2413 | } | |
2414 | ||
2415 | /* Constructors */ | |
2416 | ||
2417 | OP * | |
864dbfa3 | 2418 | Perl_newNULLLIST(pTHX) |
79072805 | 2419 | { |
8990e307 LW |
2420 | return newOP(OP_STUB, 0); |
2421 | } | |
2422 | ||
2423 | OP * | |
864dbfa3 | 2424 | Perl_force_list(pTHX_ OP *o) |
8990e307 | 2425 | { |
11343788 MB |
2426 | if (!o || o->op_type != OP_LIST) |
2427 | o = newLISTOP(OP_LIST, 0, o, Nullop); | |
2428 | null(o); | |
2429 | return o; | |
79072805 LW |
2430 | } |
2431 | ||
2432 | OP * | |
864dbfa3 | 2433 | Perl_newLISTOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) |
79072805 LW |
2434 | { |
2435 | LISTOP *listop; | |
2436 | ||
b7dc083c | 2437 | NewOp(1101, listop, 1, LISTOP); |
79072805 LW |
2438 | |
2439 | listop->op_type = type; | |
22c35a8c | 2440 | listop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2441 | listop->op_children = (first != 0) + (last != 0); |
2442 | listop->op_flags = flags; | |
79072805 LW |
2443 | |
2444 | if (!last && first) | |
2445 | last = first; | |
2446 | else if (!first && last) | |
2447 | first = last; | |
8990e307 LW |
2448 | else if (first) |
2449 | first->op_sibling = last; | |
79072805 LW |
2450 | listop->op_first = first; |
2451 | listop->op_last = last; | |
8990e307 LW |
2452 | if (type == OP_LIST) { |
2453 | OP* pushop; | |
2454 | pushop = newOP(OP_PUSHMARK, 0); | |
2455 | pushop->op_sibling = first; | |
2456 | listop->op_first = pushop; | |
2457 | listop->op_flags |= OPf_KIDS; | |
2458 | if (!last) | |
2459 | listop->op_last = pushop; | |
2460 | } | |
2461 | else if (listop->op_children) | |
2462 | listop->op_flags |= OPf_KIDS; | |
79072805 LW |
2463 | |
2464 | return (OP*)listop; | |
2465 | } | |
2466 | ||
2467 | OP * | |
864dbfa3 | 2468 | Perl_newOP(pTHX_ I32 type, I32 flags) |
79072805 | 2469 | { |
11343788 | 2470 | OP *o; |
b7dc083c | 2471 | NewOp(1101, o, 1, OP); |
11343788 | 2472 | o->op_type = type; |
22c35a8c | 2473 | o->op_ppaddr = PL_ppaddr[type]; |
11343788 | 2474 | o->op_flags = flags; |
79072805 | 2475 | |
11343788 MB |
2476 | o->op_next = o; |
2477 | o->op_private = 0 + (flags >> 8); | |
22c35a8c | 2478 | if (PL_opargs[type] & OA_RETSCALAR) |
11343788 | 2479 | scalar(o); |
22c35a8c | 2480 | if (PL_opargs[type] & OA_TARGET) |
11343788 MB |
2481 | o->op_targ = pad_alloc(type, SVs_PADTMP); |
2482 | return CHECKOP(type, o); | |
79072805 LW |
2483 | } |
2484 | ||
2485 | OP * | |
864dbfa3 | 2486 | Perl_newUNOP(pTHX_ I32 type, I32 flags, OP *first) |
79072805 LW |
2487 | { |
2488 | UNOP *unop; | |
2489 | ||
93a17b20 | 2490 | if (!first) |
aeea060c | 2491 | first = newOP(OP_STUB, 0); |
22c35a8c | 2492 | if (PL_opargs[type] & OA_MARK) |
8990e307 | 2493 | first = force_list(first); |
93a17b20 | 2494 | |
b7dc083c | 2495 | NewOp(1101, unop, 1, UNOP); |
79072805 | 2496 | unop->op_type = type; |
22c35a8c | 2497 | unop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2498 | unop->op_first = first; |
2499 | unop->op_flags = flags | OPf_KIDS; | |
c07a80fd | 2500 | unop->op_private = 1 | (flags >> 8); |
e50aee73 | 2501 | unop = (UNOP*) CHECKOP(type, unop); |
79072805 LW |
2502 | if (unop->op_next) |
2503 | return (OP*)unop; | |
2504 | ||
a0d0e21e | 2505 | return fold_constants((OP *) unop); |
79072805 LW |
2506 | } |
2507 | ||
2508 | OP * | |
864dbfa3 | 2509 | Perl_newBINOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) |
79072805 LW |
2510 | { |
2511 | BINOP *binop; | |
b7dc083c | 2512 | NewOp(1101, binop, 1, BINOP); |
79072805 LW |
2513 | |
2514 | if (!first) | |
2515 | first = newOP(OP_NULL, 0); | |
2516 | ||
2517 | binop->op_type = type; | |
22c35a8c | 2518 | binop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2519 | binop->op_first = first; |
2520 | binop->op_flags = flags | OPf_KIDS; | |
2521 | if (!last) { | |
2522 | last = first; | |
c07a80fd | 2523 | binop->op_private = 1 | (flags >> 8); |
79072805 LW |
2524 | } |
2525 | else { | |
c07a80fd | 2526 | binop->op_private = 2 | (flags >> 8); |
79072805 LW |
2527 | first->op_sibling = last; |
2528 | } | |
2529 | ||
e50aee73 | 2530 | binop = (BINOP*)CHECKOP(type, binop); |
b162f9ea | 2531 | if (binop->op_next || binop->op_type != type) |
79072805 LW |
2532 | return (OP*)binop; |
2533 | ||
7284ab6f | 2534 | binop->op_last = binop->op_first->op_sibling; |
79072805 | 2535 | |
a0d0e21e | 2536 | return fold_constants((OP *)binop); |
79072805 LW |
2537 | } |
2538 | ||
a0ed51b3 LW |
2539 | static int |
2540 | utf8compare(const void *a, const void *b) | |
2541 | { | |
2542 | int i; | |
2543 | for (i = 0; i < 10; i++) { | |
2544 | if ((*(U8**)a)[i] < (*(U8**)b)[i]) | |
2545 | return -1; | |
2546 | if ((*(U8**)a)[i] > (*(U8**)b)[i]) | |
2547 | return 1; | |
2548 | } | |
2549 | return 0; | |
2550 | } | |
2551 | ||
79072805 | 2552 | OP * |
864dbfa3 | 2553 | Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) |
79072805 | 2554 | { |
79072805 LW |
2555 | SV *tstr = ((SVOP*)expr)->op_sv; |
2556 | SV *rstr = ((SVOP*)repl)->op_sv; | |
463ee0b2 LW |
2557 | STRLEN tlen; |
2558 | STRLEN rlen; | |
ec49126f | 2559 | register U8 *t = (U8*)SvPV(tstr, tlen); |
2560 | register U8 *r = (U8*)SvPV(rstr, rlen); | |
79072805 LW |
2561 | register I32 i; |
2562 | register I32 j; | |
a0ed51b3 | 2563 | I32 del; |
79072805 | 2564 | I32 complement; |
5d06d08e | 2565 | I32 squash; |
79072805 LW |
2566 | register short *tbl; |
2567 | ||
11343788 | 2568 | complement = o->op_private & OPpTRANS_COMPLEMENT; |
a0ed51b3 | 2569 | del = o->op_private & OPpTRANS_DELETE; |
5d06d08e | 2570 | squash = o->op_private & OPpTRANS_SQUASH; |
79072805 | 2571 | |
a0ed51b3 | 2572 | if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { |
79cb57f6 | 2573 | SV* listsv = newSVpvn("# comment\n",10); |
a0ed51b3 LW |
2574 | SV* transv = 0; |
2575 | U8* tend = t + tlen; | |
2576 | U8* rend = r + rlen; | |
2577 | I32 ulen; | |
2578 | U32 tfirst = 1; | |
2579 | U32 tlast = 0; | |
2580 | I32 tdiff; | |
2581 | U32 rfirst = 1; | |
2582 | U32 rlast = 0; | |
2583 | I32 rdiff; | |
2584 | I32 diff; | |
2585 | I32 none = 0; | |
2586 | U32 max = 0; | |
2587 | I32 bits; | |
2588 | I32 grows = 0; | |
2589 | I32 havefinal = 0; | |
2590 | U32 final; | |
a0ed51b3 LW |
2591 | I32 from_utf = o->op_private & OPpTRANS_FROM_UTF; |
2592 | I32 to_utf = o->op_private & OPpTRANS_TO_UTF; | |
2593 | ||
2594 | if (complement) { | |
806e7201 | 2595 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
2596 | U8** cp; |
2597 | UV nextmin = 0; | |
2598 | New(1109, cp, tlen, U8*); | |
2599 | i = 0; | |
79cb57f6 | 2600 | transv = newSVpvn("",0); |
a0ed51b3 LW |
2601 | while (t < tend) { |
2602 | cp[i++] = t; | |
2603 | t += UTF8SKIP(t); | |
2604 | if (*t == 0xff) { | |
2605 | t++; | |
2606 | t += UTF8SKIP(t); | |
2607 | } | |
2608 | } | |
2609 | qsort(cp, i, sizeof(U8*), utf8compare); | |
2610 | for (j = 0; j < i; j++) { | |
2611 | U8 *s = cp[j]; | |
2612 | UV val = utf8_to_uv(s, &ulen); | |
2613 | s += ulen; | |
2614 | diff = val - nextmin; | |
2615 | if (diff > 0) { | |
2616 | t = uv_to_utf8(tmpbuf,nextmin); | |
dfe13c55 | 2617 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2618 | if (diff > 1) { |
2619 | t = uv_to_utf8(tmpbuf, val - 1); | |
2620 | sv_catpvn(transv, "\377", 1); | |
dfe13c55 | 2621 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2622 | } |
2623 | } | |
2624 | if (*s == 0xff) | |
2625 | val = utf8_to_uv(s+1, &ulen); | |
2626 | if (val >= nextmin) | |
2627 | nextmin = val + 1; | |
2628 | } | |
2629 | t = uv_to_utf8(tmpbuf,nextmin); | |
dfe13c55 | 2630 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2631 | t = uv_to_utf8(tmpbuf, 0x7fffffff); |
2632 | sv_catpvn(transv, "\377", 1); | |
dfe13c55 GS |
2633 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
2634 | t = (U8*)SvPVX(transv); | |
a0ed51b3 LW |
2635 | tlen = SvCUR(transv); |
2636 | tend = t + tlen; | |
2637 | } | |
2638 | else if (!rlen && !del) { | |
2639 | r = t; rlen = tlen; rend = tend; | |
4757a243 LW |
2640 | } |
2641 | if (!squash) { | |
2642 | if (to_utf && from_utf) { /* only counting characters */ | |
2643 | if (t == r || (tlen == rlen && memEQ(t, r, tlen))) | |
2644 | o->op_private |= OPpTRANS_IDENTICAL; | |
2645 | } | |
2646 | else { /* straight latin-1 translation */ | |
2647 | if (tlen == 4 && memEQ(t, "\0\377\303\277", 4) && | |
2648 | rlen == 4 && memEQ(r, "\0\377\303\277", 4)) | |
2649 | o->op_private |= OPpTRANS_IDENTICAL; | |
2650 | } | |
a0ed51b3 LW |
2651 | } |
2652 | ||
2653 | while (t < tend || tfirst <= tlast) { | |
2654 | /* see if we need more "t" chars */ | |
2655 | if (tfirst > tlast) { | |
2656 | tfirst = (I32)utf8_to_uv(t, &ulen); | |
2657 | t += ulen; | |
2658 | if (t < tend && *t == 0xff) { /* illegal utf8 val indicates range */ | |
2659 | tlast = (I32)utf8_to_uv(++t, &ulen); | |
2660 | t += ulen; | |
2661 | } | |
2662 | else | |
2663 | tlast = tfirst; | |
2664 | } | |
2665 | ||
2666 | /* now see if we need more "r" chars */ | |
2667 | if (rfirst > rlast) { | |
2668 | if (r < rend) { | |
2669 | rfirst = (I32)utf8_to_uv(r, &ulen); | |
2670 | r += ulen; | |
2671 | if (r < rend && *r == 0xff) { /* illegal utf8 val indicates range */ | |
2672 | rlast = (I32)utf8_to_uv(++r, &ulen); | |
2673 | r += ulen; | |
2674 | } | |
2675 | else | |
2676 | rlast = rfirst; | |
2677 | } | |
2678 | else { | |
2679 | if (!havefinal++) | |
2680 | final = rlast; | |
2681 | rfirst = rlast = 0xffffffff; | |
2682 | } | |
2683 | } | |
2684 | ||
2685 | /* now see which range will peter our first, if either. */ | |
2686 | tdiff = tlast - tfirst; | |
2687 | rdiff = rlast - rfirst; | |
2688 | ||
2689 | if (tdiff <= rdiff) | |
2690 | diff = tdiff; | |
2691 | else | |
2692 | diff = rdiff; | |
2693 | ||
2694 | if (rfirst == 0xffffffff) { | |
2695 | diff = tdiff; /* oops, pretend rdiff is infinite */ | |
2696 | if (diff > 0) | |
894356b3 GS |
2697 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t%04lx\tXXXX\n", |
2698 | (long)tfirst, (long)tlast); | |
a0ed51b3 | 2699 | else |
894356b3 | 2700 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t\tXXXX\n", (long)tfirst); |
a0ed51b3 LW |
2701 | } |
2702 | else { | |
2703 | if (diff > 0) | |
894356b3 GS |
2704 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t%04lx\t%04lx\n", |
2705 | (long)tfirst, (long)(tfirst + diff), | |
2706 | (long)rfirst); | |
a0ed51b3 | 2707 | else |
894356b3 GS |
2708 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t\t%04lx\n", |
2709 | (long)tfirst, (long)rfirst); | |
a0ed51b3 LW |
2710 | |
2711 | if (rfirst + diff > max) | |
2712 | max = rfirst + diff; | |
2713 | rfirst += diff + 1; | |
2714 | if (!grows) { | |
2715 | if (rfirst <= 0x80) | |
2716 | ; | |
2717 | else if (rfirst <= 0x800) | |
2718 | grows |= (tfirst < 0x80); | |
2719 | else if (rfirst <= 0x10000) | |
2720 | grows |= (tfirst < 0x800); | |
2721 | else if (rfirst <= 0x200000) | |
2722 | grows |= (tfirst < 0x10000); | |
2723 | else if (rfirst <= 0x4000000) | |
2724 | grows |= (tfirst < 0x200000); | |
2725 | else if (rfirst <= 0x80000000) | |
2726 | grows |= (tfirst < 0x4000000); | |
2727 | } | |
2728 | } | |
2729 | tfirst += diff + 1; | |
2730 | } | |
2731 | ||
2732 | none = ++max; | |
2733 | if (del) | |
2734 | del = ++max; | |
2735 | ||
2736 | if (max > 0xffff) | |
2737 | bits = 32; | |
2738 | else if (max > 0xff) | |
2739 | bits = 16; | |
2740 | else | |
2741 | bits = 8; | |
2742 | ||
2743 | cSVOPo->op_sv = (SV*)swash_init("utf8", "", listsv, bits, none); | |
2744 | SvREFCNT_dec(listsv); | |
2745 | if (transv) | |
2746 | SvREFCNT_dec(transv); | |
2747 | ||
2748 | if (!del && havefinal) | |
2749 | (void)hv_store((HV*)SvRV((cSVOPo->op_sv)), "FINAL", 5, newSViv((IV)final), 0); | |
2750 | ||
2751 | if (grows && to_utf) | |
2752 | o->op_private |= OPpTRANS_GROWS; | |
2753 | ||
2754 | op_free(expr); | |
2755 | op_free(repl); | |
2756 | return o; | |
2757 | } | |
2758 | ||
2759 | tbl = (short*)cPVOPo->op_pv; | |
79072805 LW |
2760 | if (complement) { |
2761 | Zero(tbl, 256, short); | |
2762 | for (i = 0; i < tlen; i++) | |
ec49126f | 2763 | tbl[t[i]] = -1; |
79072805 LW |
2764 | for (i = 0, j = 0; i < 256; i++) { |
2765 | if (!tbl[i]) { | |
2766 | if (j >= rlen) { | |
a0ed51b3 | 2767 | if (del) |
79072805 LW |
2768 | tbl[i] = -2; |
2769 | else if (rlen) | |
ec49126f | 2770 | tbl[i] = r[j-1]; |
79072805 LW |
2771 | else |
2772 | tbl[i] = i; | |
2773 | } | |
2774 | else | |
ec49126f | 2775 | tbl[i] = r[j++]; |
79072805 LW |
2776 | } |
2777 | } | |
2778 | } | |
2779 | else { | |
a0ed51b3 | 2780 | if (!rlen && !del) { |
79072805 | 2781 | r = t; rlen = tlen; |
5d06d08e | 2782 | if (!squash) |
4757a243 | 2783 | o->op_private |= OPpTRANS_IDENTICAL; |
79072805 LW |
2784 | } |
2785 | for (i = 0; i < 256; i++) | |
2786 | tbl[i] = -1; | |
2787 | for (i = 0, j = 0; i < tlen; i++,j++) { | |
2788 | if (j >= rlen) { | |
a0ed51b3 | 2789 | if (del) { |
ec49126f | 2790 | if (tbl[t[i]] == -1) |
2791 | tbl[t[i]] = -2; | |
79072805 LW |
2792 | continue; |
2793 | } | |
2794 | --j; | |
2795 | } | |
ec49126f | 2796 | if (tbl[t[i]] == -1) |
2797 | tbl[t[i]] = r[j]; | |
79072805 LW |
2798 | } |
2799 | } | |
2800 | op_free(expr); | |
2801 | op_free(repl); | |
2802 | ||
11343788 | 2803 | return o; |
79072805 LW |
2804 | } |
2805 | ||
2806 | OP * | |
864dbfa3 | 2807 | Perl_newPMOP(pTHX_ I32 type, I32 flags) |
79072805 | 2808 | { |
11343788 | 2809 | dTHR; |
79072805 LW |
2810 | PMOP *pmop; |
2811 | ||
b7dc083c | 2812 | NewOp(1101, pmop, 1, PMOP); |
79072805 | 2813 | pmop->op_type = type; |
22c35a8c | 2814 | pmop->op_ppaddr = PL_ppaddr[type]; |
79072805 | 2815 | pmop->op_flags = flags; |
c07a80fd | 2816 | pmop->op_private = 0 | (flags >> 8); |
79072805 | 2817 | |
3280af22 | 2818 | if (PL_hints & HINT_RE_TAINT) |
b3eb6a9b | 2819 | pmop->op_pmpermflags |= PMf_RETAINT; |
3280af22 | 2820 | if (PL_hints & HINT_LOCALE) |
b3eb6a9b GS |
2821 | pmop->op_pmpermflags |= PMf_LOCALE; |
2822 | pmop->op_pmflags = pmop->op_pmpermflags; | |
36477c24 | 2823 | |
79072805 | 2824 | /* link into pm list */ |
3280af22 NIS |
2825 | if (type != OP_TRANS && PL_curstash) { |
2826 | pmop->op_pmnext = HvPMROOT(PL_curstash); | |
2827 | HvPMROOT(PL_curstash) = pmop; | |
79072805 LW |
2828 | } |
2829 | ||
2830 | return (OP*)pmop; | |
2831 | } | |
2832 | ||
2833 | OP * | |
864dbfa3 | 2834 | Perl_pmruntime(pTHX_ OP *o, OP *expr, OP *repl) |
79072805 | 2835 | { |
5c0ca799 | 2836 | dTHR; |
79072805 LW |
2837 | PMOP *pm; |
2838 | LOGOP *rcop; | |
ce862d02 | 2839 | I32 repl_has_vars = 0; |
79072805 | 2840 | |
11343788 MB |
2841 | if (o->op_type == OP_TRANS) |
2842 | return pmtrans(o, expr, repl); | |
79072805 | 2843 | |
3280af22 | 2844 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 | 2845 | pm = (PMOP*)o; |
79072805 LW |
2846 | |
2847 | if (expr->op_type == OP_CONST) { | |
463ee0b2 | 2848 | STRLEN plen; |
79072805 | 2849 | SV *pat = ((SVOP*)expr)->op_sv; |
463ee0b2 | 2850 | char *p = SvPV(pat, plen); |
11343788 | 2851 | if ((o->op_flags & OPf_SPECIAL) && strEQ(p, " ")) { |
93a17b20 | 2852 | sv_setpvn(pat, "\\s+", 3); |
463ee0b2 | 2853 | p = SvPV(pat, plen); |
79072805 LW |
2854 | pm->op_pmflags |= PMf_SKIPWHITE; |
2855 | } | |
393fec97 | 2856 | if ((PL_hints & HINT_UTF8) || (SvUTF8(pat) && !(PL_hints & HINT_BYTE))) |
7e2040f0 | 2857 | pm->op_pmdynflags |= PMdf_UTF8; |
cea2e8a9 | 2858 | pm->op_pmregexp = CALLREGCOMP(aTHX_ p, p + plen, pm); |
aeea060c | 2859 | if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
85e6fe83 | 2860 | pm->op_pmflags |= PMf_WHITE; |
79072805 LW |
2861 | op_free(expr); |
2862 | } | |
2863 | else { | |
393fec97 GS |
2864 | if (PL_hints & HINT_UTF8) |
2865 | pm->op_pmdynflags |= PMdf_UTF8; | |
3280af22 NIS |
2866 | if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) |
2867 | expr = newUNOP((!(PL_hints & HINT_RE_EVAL) | |
2cd61cdb IZ |
2868 | ? OP_REGCRESET |
2869 | : OP_REGCMAYBE),0,expr); | |
463ee0b2 | 2870 | |
b7dc083c | 2871 | NewOp(1101, rcop, 1, LOGOP); |
79072805 | 2872 | rcop->op_type = OP_REGCOMP; |
22c35a8c | 2873 | rcop->op_ppaddr = PL_ppaddr[OP_REGCOMP]; |
79072805 | 2874 | rcop->op_first = scalar(expr); |
3280af22 | 2875 | rcop->op_flags |= ((PL_hints & HINT_RE_EVAL) |
2cd61cdb IZ |
2876 | ? (OPf_SPECIAL | OPf_KIDS) |
2877 | : OPf_KIDS); | |
79072805 | 2878 | rcop->op_private = 1; |
11343788 | 2879 | rcop->op_other = o; |
79072805 LW |
2880 | |
2881 | /* establish postfix order */ | |
3280af22 | 2882 | if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) { |
463ee0b2 LW |
2883 | LINKLIST(expr); |
2884 | rcop->op_next = expr; | |
2885 | ((UNOP*)expr)->op_first->op_next = (OP*)rcop; | |
2886 | } | |
2887 | else { | |
2888 | rcop->op_next = LINKLIST(expr); | |
2889 | expr->op_next = (OP*)rcop; | |
2890 | } | |
79072805 | 2891 | |
11343788 | 2892 | prepend_elem(o->op_type, scalar((OP*)rcop), o); |
79072805 LW |
2893 | } |
2894 | ||
2895 | if (repl) { | |
748a9306 | 2896 | OP *curop; |
0244c3a4 | 2897 | if (pm->op_pmflags & PMf_EVAL) { |
748a9306 | 2898 | curop = 0; |
57843af0 GS |
2899 | if (CopLINE(PL_curcop) < PL_multi_end) |
2900 | CopLINE_set(PL_curcop, PL_multi_end); | |
0244c3a4 | 2901 | } |
554b3eca | 2902 | #ifdef USE_THREADS |
2faa37cc | 2903 | else if (repl->op_type == OP_THREADSV |
554b3eca | 2904 | && strchr("&`'123456789+", |
533c011a | 2905 | PL_threadsv_names[repl->op_targ])) |
554b3eca MB |
2906 | { |
2907 | curop = 0; | |
2908 | } | |
2909 | #endif /* USE_THREADS */ | |
748a9306 LW |
2910 | else if (repl->op_type == OP_CONST) |
2911 | curop = repl; | |
79072805 | 2912 | else { |
79072805 LW |
2913 | OP *lastop = 0; |
2914 | for (curop = LINKLIST(repl); curop!=repl; curop = LINKLIST(curop)) { | |
22c35a8c | 2915 | if (PL_opargs[curop->op_type] & OA_DANGEROUS) { |
554b3eca | 2916 | #ifdef USE_THREADS |
ce862d02 IZ |
2917 | if (curop->op_type == OP_THREADSV) { |
2918 | repl_has_vars = 1; | |
be949f6f | 2919 | if (strchr("&`'123456789+", curop->op_private)) |
ce862d02 | 2920 | break; |
554b3eca MB |
2921 | } |
2922 | #else | |
79072805 | 2923 | if (curop->op_type == OP_GV) { |
638eceb6 | 2924 | GV *gv = cGVOPx_gv(curop); |
ce862d02 | 2925 | repl_has_vars = 1; |
93a17b20 | 2926 | if (strchr("&`'123456789+", *GvENAME(gv))) |
79072805 LW |
2927 | break; |
2928 | } | |
554b3eca | 2929 | #endif /* USE_THREADS */ |
79072805 LW |
2930 | else if (curop->op_type == OP_RV2CV) |
2931 | break; | |
2932 | else if (curop->op_type == OP_RV2SV || | |
2933 | curop->op_type == OP_RV2AV || | |
2934 | curop->op_type == OP_RV2HV || | |
2935 | curop->op_type == OP_RV2GV) { | |
2936 | if (lastop && lastop->op_type != OP_GV) /*funny deref?*/ | |
2937 | break; | |
2938 | } | |
748a9306 LW |
2939 | else if (curop->op_type == OP_PADSV || |
2940 | curop->op_type == OP_PADAV || | |
2941 | curop->op_type == OP_PADHV || | |
554b3eca | 2942 | curop->op_type == OP_PADANY) { |
ce862d02 | 2943 | repl_has_vars = 1; |
748a9306 | 2944 | } |
1167e5da SM |
2945 | else if (curop->op_type == OP_PUSHRE) |
2946 | ; /* Okay here, dangerous in newASSIGNOP */ | |
79072805 LW |
2947 | else |
2948 | break; | |
2949 | } | |
2950 | lastop = curop; | |
2951 | } | |
748a9306 | 2952 | } |
ce862d02 IZ |
2953 | if (curop == repl |
2954 | && !(repl_has_vars | |
2955 | && (!pm->op_pmregexp | |
2956 | || pm->op_pmregexp->reganch & ROPT_EVAL_SEEN))) { | |
748a9306 | 2957 | pm->op_pmflags |= PMf_CONST; /* const for long enough */ |
4633a7c4 | 2958 | pm->op_pmpermflags |= PMf_CONST; /* const for long enough */ |
11343788 | 2959 | prepend_elem(o->op_type, scalar(repl), o); |
748a9306 LW |
2960 | } |
2961 | else { | |
ce862d02 IZ |
2962 | if (curop == repl && !pm->op_pmregexp) { /* Has variables. */ |
2963 | pm->op_pmflags |= PMf_MAYBE_CONST; | |
2964 | pm->op_pmpermflags |= PMf_MAYBE_CONST; | |
2965 | } | |
b7dc083c | 2966 | NewOp(1101, rcop, 1, LOGOP); |
748a9306 | 2967 | rcop->op_type = OP_SUBSTCONT; |
22c35a8c | 2968 | rcop->op_ppaddr = PL_ppaddr[OP_SUBSTCONT]; |
748a9306 LW |
2969 | rcop->op_first = scalar(repl); |
2970 | rcop->op_flags |= OPf_KIDS; | |
2971 | rcop->op_private = 1; | |
11343788 | 2972 | rcop->op_other = o; |
748a9306 LW |
2973 | |
2974 | /* establish postfix order */ | |
2975 | rcop->op_next = LINKLIST(repl); | |
2976 | repl->op_next = (OP*)rcop; | |
2977 | ||
2978 | pm->op_pmreplroot = scalar((OP*)rcop); | |
2979 | pm->op_pmreplstart = LINKLIST(rcop); | |
2980 | rcop->op_next = 0; | |
79072805 LW |
2981 | } |
2982 | } | |
2983 | ||
2984 | return (OP*)pm; | |
2985 | } | |
2986 | ||
2987 | OP * | |
864dbfa3 | 2988 | Perl_newSVOP(pTHX_ I32 type, I32 flags, SV *sv) |
79072805 LW |
2989 | { |
2990 | SVOP *svop; | |
b7dc083c | 2991 | NewOp(1101, svop, 1, SVOP); |
79072805 | 2992 | svop->op_type = type; |
22c35a8c | 2993 | svop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2994 | svop->op_sv = sv; |
2995 | svop->op_next = (OP*)svop; | |
2996 | svop->op_flags = flags; | |
22c35a8c | 2997 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 2998 | scalar((OP*)svop); |
22c35a8c | 2999 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 3000 | svop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 3001 | return CHECKOP(type, svop); |
79072805 LW |
3002 | } |
3003 | ||
3004 | OP * | |
350de78d GS |
3005 | Perl_newPADOP(pTHX_ I32 type, I32 flags, SV *sv) |
3006 | { | |
3007 | PADOP *padop; | |
3008 | NewOp(1101, padop, 1, PADOP); | |
3009 | padop->op_type = type; | |
3010 | padop->op_ppaddr = PL_ppaddr[type]; | |
3011 | padop->op_padix = pad_alloc(type, SVs_PADTMP); | |
7766f137 | 3012 | SvREFCNT_dec(PL_curpad[padop->op_padix]); |
350de78d | 3013 | PL_curpad[padop->op_padix] = sv; |
7766f137 | 3014 | SvPADTMP_on(sv); |
350de78d GS |
3015 | padop->op_next = (OP*)padop; |
3016 | padop->op_flags = flags; | |
3017 | if (PL_opargs[type] & OA_RETSCALAR) | |
3018 | scalar((OP*)padop); | |
3019 | if (PL_opargs[type] & OA_TARGET) | |
3020 | padop->op_targ = pad_alloc(type, SVs_PADTMP); | |
3021 | return CHECKOP(type, padop); | |
3022 | } | |
3023 | ||
3024 | OP * | |
864dbfa3 | 3025 | Perl_newGVOP(pTHX_ I32 type, I32 flags, GV *gv) |
79072805 | 3026 | { |
11343788 | 3027 | dTHR; |
350de78d | 3028 | #ifdef USE_ITHREADS |
743e66e6 | 3029 | GvIN_PAD_on(gv); |
350de78d GS |
3030 | return newPADOP(type, flags, SvREFCNT_inc(gv)); |
3031 | #else | |
7934575e | 3032 | return newSVOP(type, flags, SvREFCNT_inc(gv)); |
350de78d | 3033 | #endif |
79072805 LW |
3034 | } |
3035 | ||
3036 | OP * | |
864dbfa3 | 3037 | Perl_newPVOP(pTHX_ I32 type, I32 flags, char *pv) |
79072805 LW |
3038 | { |
3039 | PVOP *pvop; | |
b7dc083c | 3040 | NewOp(1101, pvop, 1, PVOP); |
79072805 | 3041 | pvop->op_type = type; |
22c35a8c | 3042 | pvop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
3043 | pvop->op_pv = pv; |
3044 | pvop->op_next = (OP*)pvop; | |
3045 | pvop->op_flags = flags; | |
22c35a8c | 3046 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 3047 | scalar((OP*)pvop); |
22c35a8c | 3048 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 3049 | pvop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 3050 | return CHECKOP(type, pvop); |
79072805 LW |
3051 | } |
3052 | ||
79072805 | 3053 | void |
864dbfa3 | 3054 | Perl_package(pTHX_ OP *o) |
79072805 | 3055 | { |
11343788 | 3056 | dTHR; |
93a17b20 | 3057 | SV *sv; |
79072805 | 3058 | |
3280af22 NIS |
3059 | save_hptr(&PL_curstash); |
3060 | save_item(PL_curstname); | |
11343788 | 3061 | if (o) { |
463ee0b2 LW |
3062 | STRLEN len; |
3063 | char *name; | |
11343788 | 3064 | sv = cSVOPo->op_sv; |
463ee0b2 | 3065 | name = SvPV(sv, len); |
3280af22 NIS |
3066 | PL_curstash = gv_stashpvn(name,len,TRUE); |
3067 | sv_setpvn(PL_curstname, name, len); | |
11343788 | 3068 | op_free(o); |
93a17b20 LW |
3069 | } |
3070 | else { | |
3280af22 NIS |
3071 | sv_setpv(PL_curstname,"<none>"); |
3072 | PL_curstash = Nullhv; | |
93a17b20 | 3073 | } |
7ad382f4 | 3074 | PL_hints |= HINT_BLOCK_SCOPE; |
3280af22 NIS |
3075 | PL_copline = NOLINE; |
3076 | PL_expect = XSTATE; | |
79072805 LW |
3077 | } |
3078 | ||
85e6fe83 | 3079 | void |
864dbfa3 | 3080 | Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *id, OP *arg) |
85e6fe83 | 3081 | { |
a0d0e21e | 3082 | OP *pack; |
a0d0e21e LW |
3083 | OP *rqop; |
3084 | OP *imop; | |
b1cb66bf | 3085 | OP *veop; |
78ca652e | 3086 | GV *gv; |
85e6fe83 | 3087 | |
a0d0e21e | 3088 | if (id->op_type != OP_CONST) |
cea2e8a9 | 3089 | Perl_croak(aTHX_ "Module name must be constant"); |
85e6fe83 | 3090 | |
b1cb66bf | 3091 | veop = Nullop; |
3092 | ||
0f79a09d | 3093 | if (version != Nullop) { |
b1cb66bf | 3094 | SV *vesv = ((SVOP*)version)->op_sv; |
3095 | ||
44dcb63b | 3096 | if (arg == Nullop && !SvNIOKp(vesv)) { |
b1cb66bf | 3097 | arg = version; |
3098 | } | |
3099 | else { | |
3100 | OP *pack; | |
0f79a09d | 3101 | SV *meth; |
b1cb66bf | 3102 | |
44dcb63b | 3103 | if (version->op_type != OP_CONST || !SvNIOKp(vesv)) |
cea2e8a9 | 3104 | Perl_croak(aTHX_ "Version number must be constant number"); |
b1cb66bf | 3105 | |
3106 | /* Make copy of id so we don't free it twice */ | |
3107 | pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv)); | |
3108 | ||
3109 | /* Fake up a method call to VERSION */ | |
0f79a09d GS |
3110 | meth = newSVpvn("VERSION",7); |
3111 | sv_upgrade(meth, SVt_PVIV); | |
155aba94 | 3112 | (void)SvIOK_on(meth); |
0f79a09d | 3113 | PERL_HASH(SvUVX(meth), SvPVX(meth), SvCUR(meth)); |
b1cb66bf | 3114 | veop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, |
3115 | append_elem(OP_LIST, | |
0f79a09d GS |
3116 | prepend_elem(OP_LIST, pack, list(version)), |
3117 | newSVOP(OP_METHOD_NAMED, 0, meth))); | |
b1cb66bf | 3118 | } |
3119 | } | |
aeea060c | 3120 | |
a0d0e21e | 3121 | /* Fake up an import/unimport */ |
4633a7c4 LW |
3122 | if (arg && arg->op_type == OP_STUB) |
3123 | imop = arg; /* no import on explicit () */ | |
44dcb63b | 3124 | else if (SvNIOKp(((SVOP*)id)->op_sv)) { |
b1cb66bf | 3125 | imop = Nullop; /* use 5.0; */ |
3126 | } | |
4633a7c4 | 3127 | else { |
0f79a09d GS |
3128 | SV *meth; |
3129 | ||
4633a7c4 LW |
3130 | /* Make copy of id so we don't free it twice */ |
3131 | pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv)); | |
0f79a09d GS |
3132 | |
3133 | /* Fake up a method call to import/unimport */ | |
3134 | meth = aver ? newSVpvn("import",6) : newSVpvn("unimport", 8);; | |
3135 | sv_upgrade(meth, SVt_PVIV); | |
155aba94 | 3136 | (void)SvIOK_on(meth); |
0f79a09d | 3137 | PERL_HASH(SvUVX(meth), SvPVX(meth), SvCUR(meth)); |
4633a7c4 | 3138 | imop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, |
0f79a09d GS |
3139 | append_elem(OP_LIST, |
3140 | prepend_elem(OP_LIST, pack, list(arg)), | |
3141 | newSVOP(OP_METHOD_NAMED, 0, meth))); | |
4633a7c4 LW |
3142 | } |
3143 | ||
78ca652e GS |
3144 | /* Fake up a require, handle override, if any */ |
3145 | gv = gv_fetchpv("require", FALSE, SVt_PVCV); | |
3146 | if (!(gv && GvIMPORTED_CV(gv))) | |
3147 | gv = gv_fetchpv("CORE::GLOBAL::require", FALSE, SVt_PVCV); | |
3148 | ||
3149 | if (gv && GvIMPORTED_CV(gv)) { | |
3150 | rqop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3151 | append_elem(OP_LIST, id, | |
3152 | scalar(newUNOP(OP_RV2CV, 0, | |
3153 | newGVOP(OP_GV, 0, | |
3154 | gv)))))); | |
3155 | } | |
3156 | else { | |
3157 | rqop = newUNOP(OP_REQUIRE, 0, id); | |
3158 | } | |
a0d0e21e LW |
3159 | |
3160 | /* Fake up the BEGIN {}, which does its thing immediately. */ | |
09bef843 | 3161 | newATTRSUB(floor, |
79cb57f6 | 3162 | newSVOP(OP_CONST, 0, newSVpvn("BEGIN", 5)), |
4633a7c4 | 3163 | Nullop, |
09bef843 | 3164 | Nullop, |
a0d0e21e | 3165 | append_elem(OP_LINESEQ, |
b1cb66bf | 3166 | append_elem(OP_LINESEQ, |
3167 | newSTATEOP(0, Nullch, rqop), | |
3168 | newSTATEOP(0, Nullch, veop)), | |
a0d0e21e | 3169 | newSTATEOP(0, Nullch, imop) )); |
85e6fe83 | 3170 | |
c305c6a0 | 3171 | PL_hints |= HINT_BLOCK_SCOPE; |
3280af22 NIS |
3172 | PL_copline = NOLINE; |
3173 | PL_expect = XSTATE; | |
85e6fe83 LW |
3174 | } |
3175 | ||
e4783991 GS |
3176 | void |
3177 | Perl_load_module(pTHX_ U32 flags, SV *name, SV *ver, ...) | |
3178 | { | |
3179 | va_list args; | |
3180 | va_start(args, ver); | |
3181 | vload_module(flags, name, ver, &args); | |
3182 | va_end(args); | |
3183 | } | |
3184 | ||
3185 | #ifdef PERL_IMPLICIT_CONTEXT | |
3186 | void | |
3187 | Perl_load_module_nocontext(U32 flags, SV *name, SV *ver, ...) | |
3188 | { | |
3189 | dTHX; | |
3190 | va_list args; | |
3191 | va_start(args, ver); | |
3192 | vload_module(flags, name, ver, &args); | |
3193 | va_end(args); | |
3194 | } | |
3195 | #endif | |
3196 | ||
3197 | void | |
3198 | Perl_vload_module(pTHX_ U32 flags, SV *name, SV *ver, va_list *args) | |
3199 | { | |
3200 | OP *modname, *veop, *imop; | |
3201 | ||
3202 | modname = newSVOP(OP_CONST, 0, name); | |
3203 | modname->op_private |= OPpCONST_BARE; | |
3204 | if (ver) { | |
3205 | veop = newSVOP(OP_CONST, 0, ver); | |
3206 | } | |
3207 | else | |
3208 | veop = Nullop; | |
3209 | if (flags & PERL_LOADMOD_NOIMPORT) { | |
3210 | imop = sawparens(newNULLLIST()); | |
3211 | } | |
3212 | else if (flags & PERL_LOADMOD_IMPORT_OPS) { | |
3213 | imop = va_arg(*args, OP*); | |
3214 | } | |
3215 | else { | |
3216 | SV *sv; | |
3217 | imop = Nullop; | |
3218 | sv = va_arg(*args, SV*); | |
3219 | while (sv) { | |
3220 | imop = append_elem(OP_LIST, imop, newSVOP(OP_CONST, 0, sv)); | |
3221 | sv = va_arg(*args, SV*); | |
3222 | } | |
3223 | } | |
3224 | utilize(!(flags & PERL_LOADMOD_DENY), start_subparse(FALSE, 0), | |
3225 | veop, modname, imop); | |
3226 | } | |
3227 | ||
79072805 | 3228 | OP * |
864dbfa3 | 3229 | Perl_dofile(pTHX_ OP *term) |
78ca652e GS |
3230 | { |
3231 | OP *doop; | |
3232 | GV *gv; | |
3233 | ||
3234 | gv = gv_fetchpv("do", FALSE, SVt_PVCV); | |
3235 | if (!(gv && GvIMPORTED_CV(gv))) | |
3236 | gv = gv_fetchpv("CORE::GLOBAL::do", FALSE, SVt_PVCV); | |
3237 | ||
3238 | if (gv && GvIMPORTED_CV(gv)) { | |
3239 | doop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3240 | append_elem(OP_LIST, term, | |
3241 | scalar(newUNOP(OP_RV2CV, 0, | |
3242 | newGVOP(OP_GV, 0, | |
3243 | gv)))))); | |
3244 | } | |
3245 | else { | |
3246 | doop = newUNOP(OP_DOFILE, 0, scalar(term)); | |
3247 | } | |
3248 | return doop; | |
3249 | } | |
3250 | ||
3251 | OP * | |
864dbfa3 | 3252 | Perl_newSLICEOP(pTHX_ I32 flags, OP *subscript, OP *listval) |
79072805 LW |
3253 | { |
3254 | return newBINOP(OP_LSLICE, flags, | |
8990e307 LW |
3255 | list(force_list(subscript)), |
3256 | list(force_list(listval)) ); | |
79072805 LW |
3257 | } |
3258 | ||
76e3520e | 3259 | STATIC I32 |
cea2e8a9 | 3260 | S_list_assignment(pTHX_ register OP *o) |
79072805 | 3261 | { |
11343788 | 3262 | if (!o) |
79072805 LW |
3263 | return TRUE; |
3264 | ||
11343788 MB |
3265 | if (o->op_type == OP_NULL && o->op_flags & OPf_KIDS) |
3266 | o = cUNOPo->op_first; | |
79072805 | 3267 | |
11343788 | 3268 | if (o->op_type == OP_COND_EXPR) { |
1a67a97c SM |
3269 | I32 t = list_assignment(cLOGOPo->op_first->op_sibling); |
3270 | I32 f = list_assignment(cLOGOPo->op_first->op_sibling->op_sibling); | |
79072805 LW |
3271 | |
3272 | if (t && f) | |
3273 | return TRUE; | |
3274 | if (t || f) | |
3275 | yyerror("Assignment to both a list and a scalar"); | |
3276 | return FALSE; | |
3277 | } | |
3278 | ||
11343788 MB |
3279 | if (o->op_type == OP_LIST || o->op_flags & OPf_PARENS || |
3280 | o->op_type == OP_RV2AV || o->op_type == OP_RV2HV || | |
3281 | o->op_type == OP_ASLICE || o->op_type == OP_HSLICE) | |
79072805 LW |
3282 | return TRUE; |
3283 | ||
11343788 | 3284 | if (o->op_type == OP_PADAV || o->op_type == OP_PADHV) |
93a17b20 LW |
3285 | return TRUE; |
3286 | ||
11343788 | 3287 | if (o->op_type == OP_RV2SV) |
79072805 LW |
3288 | return FALSE; |
3289 | ||
3290 | return FALSE; | |
3291 | } | |
3292 | ||
3293 | OP * | |
864dbfa3 | 3294 | Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) |
79072805 | 3295 | { |
11343788 | 3296 | OP *o; |
79072805 | 3297 | |
a0d0e21e LW |
3298 | if (optype) { |
3299 | if (optype == OP_ANDASSIGN || optype == OP_ORASSIGN) { | |
3300 | return newLOGOP(optype, 0, | |
3301 | mod(scalar(left), optype), | |
3302 | newUNOP(OP_SASSIGN, 0, scalar(right))); | |
3303 | } | |
3304 | else { | |
3305 | return newBINOP(optype, OPf_STACKED, | |
3306 | mod(scalar(left), optype), scalar(right)); | |
3307 | } | |
3308 | } | |
3309 | ||
79072805 | 3310 | if (list_assignment(left)) { |
6ee623d5 | 3311 | dTHR; |
10c8fecd GS |
3312 | OP *curop; |
3313 | ||
3280af22 NIS |
3314 | PL_modcount = 0; |
3315 | PL_eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/ | |
463ee0b2 | 3316 | left = mod(left, OP_AASSIGN); |
3280af22 NIS |
3317 | if (PL_eval_start) |
3318 | PL_eval_start = 0; | |
748a9306 | 3319 | else { |
a0d0e21e LW |
3320 | op_free(left); |
3321 | op_free(right); | |
3322 | return Nullop; | |
3323 | } | |
10c8fecd GS |
3324 | curop = list(force_list(left)); |
3325 | o = newBINOP(OP_AASSIGN, flags, list(force_list(right)), curop); | |
11343788 | 3326 | o->op_private = 0 | (flags >> 8); |
10c8fecd GS |
3327 | for (curop = ((LISTOP*)curop)->op_first; |
3328 | curop; curop = curop->op_sibling) | |
3329 | { | |
3330 | if (curop->op_type == OP_RV2HV && | |
3331 | ((UNOP*)curop)->op_first->op_type != OP_GV) { | |
3332 | o->op_private |= OPpASSIGN_HASH; | |
3333 | break; | |
3334 | } | |
3335 | } | |
a0d0e21e | 3336 | if (!(left->op_private & OPpLVAL_INTRO)) { |
11343788 | 3337 | OP *lastop = o; |
3280af22 | 3338 | PL_generation++; |
11343788 | 3339 | for (curop = LINKLIST(o); curop != o; curop = LINKLIST(curop)) { |
22c35a8c | 3340 | if (PL_opargs[curop->op_type] & OA_DANGEROUS) { |
79072805 | 3341 | if (curop->op_type == OP_GV) { |
638eceb6 | 3342 | GV *gv = cGVOPx_gv(curop); |
3280af22 | 3343 | if (gv == PL_defgv || SvCUR(gv) == PL_generation) |
79072805 | 3344 | break; |
3280af22 | 3345 | SvCUR(gv) = PL_generation; |
79072805 | 3346 | } |
748a9306 LW |
3347 | else if (curop->op_type == OP_PADSV || |
3348 | curop->op_type == OP_PADAV || | |
3349 | curop->op_type == OP_PADHV || | |
3350 | curop->op_type == OP_PADANY) { | |
3280af22 | 3351 | SV **svp = AvARRAY(PL_comppad_name); |
8e07c86e | 3352 | SV *sv = svp[curop->op_targ]; |
3280af22 | 3353 | if (SvCUR(sv) == PL_generation) |
748a9306 | 3354 | break; |
3280af22 | 3355 | SvCUR(sv) = PL_generation; /* (SvCUR not used any more) */ |
748a9306 | 3356 | } |
79072805 LW |
3357 | else if (curop->op_type == OP_RV2CV) |
3358 | break; | |
3359 | else if (curop->op_type == OP_RV2SV || | |
3360 | curop->op_type == OP_RV2AV || | |
3361 | curop->op_type == OP_RV2HV || | |
3362 | curop->op_type == OP_RV2GV) { | |
3363 | if (lastop->op_type != OP_GV) /* funny deref? */ | |
3364 | break; | |
3365 | } | |
1167e5da SM |
3366 | else if (curop->op_type == OP_PUSHRE) { |
3367 | if (((PMOP*)curop)->op_pmreplroot) { | |
3368 | GV *gv = (GV*)((PMOP*)curop)->op_pmreplroot; | |
3280af22 | 3369 | if (gv == PL_defgv || SvCUR(gv) == PL_generation) |
1167e5da | 3370 | break; |
3280af22 | 3371 | SvCUR(gv) = PL_generation; |
1167e5da SM |
3372 | } |
3373 | } | |
79072805 LW |
3374 | else |
3375 | break; | |
3376 | } | |
3377 | lastop = curop; | |
3378 | } | |
11343788 | 3379 | if (curop != o) |
10c8fecd | 3380 | o->op_private |= OPpASSIGN_COMMON; |
79072805 | 3381 | } |
c07a80fd | 3382 | if (right && right->op_type == OP_SPLIT) { |
3383 | OP* tmpop; | |
3384 | if ((tmpop = ((LISTOP*)right)->op_first) && | |
3385 | tmpop->op_type == OP_PUSHRE) | |
3386 | { | |
3387 | PMOP *pm = (PMOP*)tmpop; | |
3388 | if (left->op_type == OP_RV2AV && | |
3389 | !(left->op_private & OPpLVAL_INTRO) && | |
11343788 | 3390 | !(o->op_private & OPpASSIGN_COMMON) ) |
c07a80fd | 3391 | { |
3392 | tmpop = ((UNOP*)left)->op_first; | |
3393 | if (tmpop->op_type == OP_GV && !pm->op_pmreplroot) { | |
971a9dd3 GS |
3394 | #ifdef USE_ITHREADS |
3395 | pm->op_pmreplroot = (OP*)cPADOPx(tmpop)->op_padix; | |
3396 | cPADOPx(tmpop)->op_padix = 0; /* steal it */ | |
3397 | #else | |
3398 | pm->op_pmreplroot = (OP*)cSVOPx(tmpop)->op_sv; | |
3399 | cSVOPx(tmpop)->op_sv = Nullsv; /* steal it */ | |
3400 | #endif | |
c07a80fd | 3401 | pm->op_pmflags |= PMf_ONCE; |
11343788 | 3402 | tmpop = cUNOPo->op_first; /* to list (nulled) */ |
c07a80fd | 3403 | tmpop = ((UNOP*)tmpop)->op_first; /* to pushmark */ |
3404 | tmpop->op_sibling = Nullop; /* don't free split */ | |
3405 | right->op_next = tmpop->op_next; /* fix starting loc */ | |
11343788 | 3406 | op_free(o); /* blow off assign */ |
54310121 | 3407 | right->op_flags &= ~OPf_WANT; |
a5f75d66 | 3408 | /* "I don't know and I don't care." */ |
c07a80fd | 3409 | return right; |
3410 | } | |
3411 | } | |
3412 | else { | |
3280af22 | 3413 | if (PL_modcount < 10000 && |
c07a80fd | 3414 | ((LISTOP*)right)->op_last->op_type == OP_CONST) |
3415 | { | |
3416 | SV *sv = ((SVOP*)((LISTOP*)right)->op_last)->op_sv; | |
3417 | if (SvIVX(sv) == 0) | |
3280af22 | 3418 | sv_setiv(sv, PL_modcount+1); |
c07a80fd | 3419 | } |
3420 | } | |
3421 | } | |
3422 | } | |
11343788 | 3423 | return o; |
79072805 LW |
3424 | } |
3425 | if (!right) | |
3426 | right = newOP(OP_UNDEF, 0); | |
3427 | if (right->op_type == OP_READLINE) { | |
3428 | right->op_flags |= OPf_STACKED; | |
463ee0b2 | 3429 | return newBINOP(OP_NULL, flags, mod(scalar(left), OP_SASSIGN), scalar(right)); |
79072805 | 3430 | } |
a0d0e21e | 3431 | else { |
3280af22 | 3432 | PL_eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/ |
11343788 | 3433 | o = newBINOP(OP_SASSIGN, flags, |
463ee0b2 | 3434 | scalar(right), mod(scalar(left), OP_SASSIGN) ); |
3280af22 NIS |
3435 | if (PL_eval_start) |
3436 | PL_eval_start = 0; | |
748a9306 | 3437 | else { |
11343788 | 3438 | op_free(o); |
a0d0e21e LW |
3439 | return Nullop; |
3440 | } | |
3441 | } | |
11343788 | 3442 | return o; |
79072805 LW |
3443 | } |
3444 | ||
3445 | OP * | |
864dbfa3 | 3446 | Perl_newSTATEOP(pTHX_ I32 flags, char *label, OP *o) |
79072805 | 3447 | { |
11343788 | 3448 | dTHR; |
bbce6d69 | 3449 | U32 seq = intro_my(); |
79072805 LW |
3450 | register COP *cop; |
3451 | ||
b7dc083c | 3452 | NewOp(1101, cop, 1, COP); |
57843af0 | 3453 | if (PERLDB_LINE && CopLINE(PL_curcop) && PL_curstash != PL_debstash) { |
8990e307 | 3454 | cop->op_type = OP_DBSTATE; |
22c35a8c | 3455 | cop->op_ppaddr = PL_ppaddr[ OP_DBSTATE ]; |
8990e307 LW |
3456 | } |
3457 | else { | |
3458 | cop->op_type = OP_NEXTSTATE; | |
22c35a8c | 3459 | cop->op_ppaddr = PL_ppaddr[ OP_NEXTSTATE ]; |
8990e307 | 3460 | } |
79072805 | 3461 | cop->op_flags = flags; |
393fec97 | 3462 | cop->op_private = (PL_hints & HINT_BYTE); |
ff0cee69 | 3463 | #ifdef NATIVE_HINTS |
3464 | cop->op_private |= NATIVE_HINTS; | |
3465 | #endif | |
e24b16f9 | 3466 | PL_compiling.op_private = cop->op_private; |
79072805 LW |
3467 | cop->op_next = (OP*)cop; |
3468 | ||
463ee0b2 LW |
3469 | if (label) { |
3470 | cop->cop_label = label; | |
3280af22 | 3471 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 3472 | } |
bbce6d69 | 3473 | cop->cop_seq = seq; |
3280af22 | 3474 | cop->cop_arybase = PL_curcop->cop_arybase; |
0453d815 | 3475 | if (specialWARN(PL_curcop->cop_warnings)) |
599cee73 PM |
3476 | cop->cop_warnings = PL_curcop->cop_warnings ; |
3477 | else | |
3478 | cop->cop_warnings = newSVsv(PL_curcop->cop_warnings) ; | |
3479 | ||
79072805 | 3480 | |
3280af22 | 3481 | if (PL_copline == NOLINE) |
57843af0 | 3482 | CopLINE_set(cop, CopLINE(PL_curcop)); |
79072805 | 3483 | else { |
57843af0 | 3484 | CopLINE_set(cop, PL_copline); |
3280af22 | 3485 | PL_copline = NOLINE; |
79072805 | 3486 | } |
57843af0 GS |
3487 | #ifdef USE_ITHREADS |
3488 | CopFILE_set(cop, CopFILE(PL_curcop)); /* XXXXX share in a pvtable? */ | |
3489 | #else | |
cc49e20b | 3490 | CopFILEGV_set(cop, (GV*)SvREFCNT_inc(CopFILEGV(PL_curcop))); |
57843af0 | 3491 | #endif |
11faa288 | 3492 | CopSTASH_set(cop, PL_curstash); |
79072805 | 3493 | |
3280af22 | 3494 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
cc49e20b | 3495 | SV **svp = av_fetch(CopFILEAV(PL_curcop), (I32)CopLINE(cop), FALSE); |
3280af22 | 3496 | if (svp && *svp != &PL_sv_undef && !SvIOK(*svp)) { |
a0d0e21e | 3497 | (void)SvIOK_on(*svp); |
57b2e452 | 3498 | SvIVX(*svp) = PTR2IV(cop); |
93a17b20 LW |
3499 | } |
3500 | } | |
3501 | ||
11343788 | 3502 | return prepend_elem(OP_LINESEQ, (OP*)cop, o); |
79072805 LW |
3503 | } |
3504 | ||
bbce6d69 | 3505 | /* "Introduce" my variables to visible status. */ |
3506 | U32 | |
864dbfa3 | 3507 | Perl_intro_my(pTHX) |
bbce6d69 | 3508 | { |
3509 | SV **svp; | |
3510 | SV *sv; | |
3511 | I32 i; | |
3512 | ||
3280af22 NIS |
3513 | if (! PL_min_intro_pending) |
3514 | return PL_cop_seqmax; | |
bbce6d69 | 3515 | |
3280af22 NIS |
3516 | svp = AvARRAY(PL_comppad_name); |
3517 | for (i = PL_min_intro_pending; i <= PL_max_intro_pending; i++) { | |
3518 | if ((sv = svp[i]) && sv != &PL_sv_undef && !SvIVX(sv)) { | |
c53d7c7d | 3519 | SvIVX(sv) = PAD_MAX; /* Don't know scope end yet. */ |
65202027 | 3520 | SvNVX(sv) = (NV)PL_cop_seqmax; |
bbce6d69 | 3521 | } |
3522 | } | |
3280af22 NIS |
3523 | PL_min_intro_pending = 0; |
3524 | PL_comppad_name_fill = PL_max_intro_pending; /* Needn't search higher */ | |
3525 | return PL_cop_seqmax++; | |
bbce6d69 | 3526 | } |
3527 | ||
79072805 | 3528 | OP * |
864dbfa3 | 3529 | Perl_newLOGOP(pTHX_ I32 type, I32 flags, OP *first, OP *other) |
79072805 | 3530 | { |
883ffac3 CS |
3531 | return new_logop(type, flags, &first, &other); |
3532 | } | |
3533 | ||
3bd495df | 3534 | STATIC OP * |
cea2e8a9 | 3535 | S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp) |
883ffac3 | 3536 | { |
11343788 | 3537 | dTHR; |
79072805 | 3538 | LOGOP *logop; |
11343788 | 3539 | OP *o; |
883ffac3 CS |
3540 | OP *first = *firstp; |
3541 | OP *other = *otherp; | |
79072805 | 3542 | |
a0d0e21e LW |
3543 | if (type == OP_XOR) /* Not short circuit, but here by precedence. */ |
3544 | return newBINOP(type, flags, scalar(first), scalar(other)); | |
3545 | ||
8990e307 | 3546 | scalarboolean(first); |
79072805 LW |
3547 | /* optimize "!a && b" to "a || b", and "!a || b" to "a && b" */ |
3548 | if (first->op_type == OP_NOT && (first->op_flags & OPf_SPECIAL)) { | |
3549 | if (type == OP_AND || type == OP_OR) { | |
3550 | if (type == OP_AND) | |
3551 | type = OP_OR; | |
3552 | else | |
3553 | type = OP_AND; | |
11343788 | 3554 | o = first; |
883ffac3 | 3555 | first = *firstp = cUNOPo->op_first; |
11343788 MB |
3556 | if (o->op_next) |
3557 | first->op_next = o->op_next; | |
3558 | cUNOPo->op_first = Nullop; | |
3559 | op_free(o); | |
79072805 LW |
3560 | } |
3561 | } | |
3562 | if (first->op_type == OP_CONST) { | |
4673fc70 | 3563 | if (ckWARN(WARN_BAREWORD) && (first->op_private & OPpCONST_BARE)) |
e476b1b5 | 3564 | Perl_warner(aTHX_ WARN_BAREWORD, "Bareword found in conditional"); |
79072805 LW |
3565 | if ((type == OP_AND) == (SvTRUE(((SVOP*)first)->op_sv))) { |
3566 | op_free(first); | |
883ffac3 | 3567 | *firstp = Nullop; |
79072805 LW |
3568 | return other; |
3569 | } | |
3570 | else { | |
3571 | op_free(other); | |
883ffac3 | 3572 | *otherp = Nullop; |
79072805 LW |
3573 | return first; |
3574 | } | |
3575 | } | |
3576 | else if (first->op_type == OP_WANTARRAY) { | |
3577 | if (type == OP_AND) | |
3578 | list(other); | |
3579 | else | |
3580 | scalar(other); | |
3581 | } | |
e476b1b5 | 3582 | else if (ckWARN(WARN_MISC) && (first->op_flags & OPf_KIDS)) { |
a6006777 | 3583 | OP *k1 = ((UNOP*)first)->op_first; |
3584 | OP *k2 = k1->op_sibling; | |
3585 | OPCODE warnop = 0; | |
3586 | switch (first->op_type) | |
3587 | { | |
3588 | case OP_NULL: | |
3589 | if (k2 && k2->op_type == OP_READLINE | |
3590 | && (k2->op_flags & OPf_STACKED) | |
55d729e4 | 3591 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) |
72b16652 | 3592 | { |
a6006777 | 3593 | warnop = k2->op_type; |
72b16652 | 3594 | } |
a6006777 | 3595 | break; |
3596 | ||
3597 | case OP_SASSIGN: | |
68dc0745 | 3598 | if (k1->op_type == OP_READDIR |
3599 | || k1->op_type == OP_GLOB | |
72b16652 | 3600 | || (k1->op_type == OP_NULL && k1->op_targ == OP_GLOB) |
68dc0745 | 3601 | || k1->op_type == OP_EACH) |
72b16652 GS |
3602 | { |
3603 | warnop = ((k1->op_type == OP_NULL) | |
3604 | ? k1->op_targ : k1->op_type); | |
3605 | } | |
a6006777 | 3606 | break; |
3607 | } | |
8ebc5c01 | 3608 | if (warnop) { |
57843af0 GS |
3609 | line_t oldline = CopLINE(PL_curcop); |
3610 | CopLINE_set(PL_curcop, PL_copline); | |
e476b1b5 | 3611 | Perl_warner(aTHX_ WARN_MISC, |
599cee73 | 3612 | "Value of %s%s can be \"0\"; test with defined()", |
22c35a8c | 3613 | PL_op_desc[warnop], |
68dc0745 | 3614 | ((warnop == OP_READLINE || warnop == OP_GLOB) |
3615 | ? " construct" : "() operator")); | |
57843af0 | 3616 | CopLINE_set(PL_curcop, oldline); |
8ebc5c01 | 3617 | } |
a6006777 | 3618 | } |
79072805 LW |
3619 | |
3620 | if (!other) | |
3621 | return first; | |
3622 | ||
a0d0e21e LW |
3623 | if (type == OP_ANDASSIGN || type == OP_ORASSIGN) |
3624 | other->op_private |= OPpASSIGN_BACKWARDS; /* other is an OP_SASSIGN */ | |
3625 | ||
b7dc083c | 3626 | NewOp(1101, logop, 1, LOGOP); |
79072805 LW |
3627 | |
3628 | logop->op_type = type; | |
22c35a8c | 3629 | logop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
3630 | logop->op_first = first; |
3631 | logop->op_flags = flags | OPf_KIDS; | |
3632 | logop->op_other = LINKLIST(other); | |
c07a80fd | 3633 | logop->op_private = 1 | (flags >> 8); |
79072805 LW |
3634 | |
3635 | /* establish postfix order */ | |
3636 | logop->op_next = LINKLIST(first); | |
3637 | first->op_next = (OP*)logop; | |
3638 | first->op_sibling = other; | |
3639 | ||
11343788 MB |
3640 | o = newUNOP(OP_NULL, 0, (OP*)logop); |
3641 | other->op_next = o; | |
79072805 | 3642 | |
11343788 | 3643 | return o; |
79072805 LW |
3644 | } |
3645 | ||
3646 | OP * | |
864dbfa3 | 3647 | Perl_newCONDOP(pTHX_ I32 flags, OP *first, OP *trueop, OP *falseop) |
79072805 | 3648 | { |
11343788 | 3649 | dTHR; |
1a67a97c SM |
3650 | LOGOP *logop; |
3651 | OP *start; | |
11343788 | 3652 | OP *o; |
79072805 | 3653 | |
b1cb66bf | 3654 | if (!falseop) |
3655 | return newLOGOP(OP_AND, 0, first, trueop); | |
3656 | if (!trueop) | |
3657 | return newLOGOP(OP_OR, 0, first, falseop); | |
79072805 | 3658 | |
8990e307 | 3659 | scalarboolean(first); |
79072805 LW |
3660 | if (first->op_type == OP_CONST) { |
3661 | if (SvTRUE(((SVOP*)first)->op_sv)) { | |
3662 | op_free(first); | |
b1cb66bf | 3663 | op_free(falseop); |
3664 | return trueop; | |
79072805 LW |
3665 | } |
3666 | else { | |
3667 | op_free(first); | |
b1cb66bf | 3668 | op_free(trueop); |
3669 | return falseop; | |
79072805 LW |
3670 | } |
3671 | } | |
3672 | else if (first->op_type == OP_WANTARRAY) { | |
b1cb66bf | 3673 | list(trueop); |
3674 | scalar(falseop); | |
79072805 | 3675 | } |
1a67a97c SM |
3676 | NewOp(1101, logop, 1, LOGOP); |
3677 | logop->op_type = OP_COND_EXPR; | |
3678 | logop->op_ppaddr = PL_ppaddr[OP_COND_EXPR]; | |
3679 | logop->op_first = first; | |
3680 | logop->op_flags = flags | OPf_KIDS; | |
3681 | logop->op_private = 1 | (flags >> 8); | |
3682 | logop->op_other = LINKLIST(trueop); | |
3683 | logop->op_next = LINKLIST(falseop); | |
79072805 | 3684 | |
79072805 LW |
3685 | |
3686 | /* establish postfix order */ | |
1a67a97c SM |
3687 | start = LINKLIST(first); |
3688 | first->op_next = (OP*)logop; | |
79072805 | 3689 | |
b1cb66bf | 3690 | first->op_sibling = trueop; |
3691 | trueop->op_sibling = falseop; | |
1a67a97c | 3692 | o = newUNOP(OP_NULL, 0, (OP*)logop); |
79072805 | 3693 | |
1a67a97c | 3694 | trueop->op_next = falseop->op_next = o; |
79072805 | 3695 | |
1a67a97c | 3696 | o->op_next = start; |
11343788 | 3697 | return o; |
79072805 LW |
3698 | } |
3699 | ||
3700 | OP * | |
864dbfa3 | 3701 | Perl_newRANGE(pTHX_ I32 flags, OP *left, OP *right) |
79072805 | 3702 | { |
b35b2403 | 3703 | dTHR; |
1a67a97c | 3704 | LOGOP *range; |
79072805 LW |
3705 | OP *flip; |
3706 | OP *flop; | |
1a67a97c | 3707 | OP *leftstart; |
11343788 | 3708 | OP *o; |
79072805 | 3709 | |
1a67a97c | 3710 | NewOp(1101, range, 1, LOGOP); |
79072805 | 3711 | |
1a67a97c SM |
3712 | range->op_type = OP_RANGE; |
3713 | range->op_ppaddr = PL_ppaddr[OP_RANGE]; | |
3714 | range->op_first = left; | |
3715 | range->op_flags = OPf_KIDS; | |
3716 | leftstart = LINKLIST(left); | |
3717 | range->op_other = LINKLIST(right); | |
3718 | range->op_private = 1 | (flags >> 8); | |
79072805 LW |
3719 | |
3720 | left->op_sibling = right; | |
3721 | ||
1a67a97c SM |
3722 | range->op_next = (OP*)range; |
3723 | flip = newUNOP(OP_FLIP, flags, (OP*)range); | |
79072805 | 3724 | flop = newUNOP(OP_FLOP, 0, flip); |
11343788 | 3725 | o = newUNOP(OP_NULL, 0, flop); |
79072805 | 3726 | linklist(flop); |
1a67a97c | 3727 | range->op_next = leftstart; |
79072805 LW |
3728 | |
3729 | left->op_next = flip; | |
3730 | right->op_next = flop; | |
3731 | ||
1a67a97c SM |
3732 | range->op_targ = pad_alloc(OP_RANGE, SVs_PADMY); |
3733 | sv_upgrade(PAD_SV(range->op_targ), SVt_PVNV); | |
ed6116ce | 3734 | flip->op_targ = pad_alloc(OP_RANGE, SVs_PADMY); |
79072805 LW |
3735 | sv_upgrade(PAD_SV(flip->op_targ), SVt_PVNV); |
3736 | ||
3737 | flip->op_private = left->op_type == OP_CONST ? OPpFLIP_LINENUM : 0; | |
3738 | flop->op_private = right->op_type == OP_CONST ? OPpFLIP_LINENUM : 0; | |
3739 | ||
11343788 | 3740 | flip->op_next = o; |
79072805 | 3741 | if (!flip->op_private || !flop->op_private) |
11343788 | 3742 | linklist(o); /* blow off optimizer unless constant */ |
79072805 | 3743 | |
11343788 | 3744 | return o; |
79072805 LW |
3745 | } |
3746 | ||
3747 | OP * | |
864dbfa3 | 3748 | Perl_newLOOPOP(pTHX_ I32 flags, I32 debuggable, OP *expr, OP *block) |
79072805 | 3749 | { |
11343788 | 3750 | dTHR; |
463ee0b2 | 3751 | OP* listop; |
11343788 | 3752 | OP* o; |
463ee0b2 | 3753 | int once = block && block->op_flags & OPf_SPECIAL && |
a0d0e21e | 3754 | (block->op_type == OP_ENTERSUB || block->op_type == OP_NULL); |
93a17b20 | 3755 | |
463ee0b2 LW |
3756 | if (expr) { |
3757 | if (once && expr->op_type == OP_CONST && !SvTRUE(((SVOP*)expr)->op_sv)) | |
3758 | return block; /* do {} while 0 does once */ | |
fb73857a | 3759 | if (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB |
3760 | || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB)) { | |
774d564b | 3761 | expr = newUNOP(OP_DEFINED, 0, |
54b9620d | 3762 | newASSIGNOP(0, newDEFSVOP(), 0, expr) ); |
55d729e4 GS |
3763 | } else if (expr->op_flags & OPf_KIDS) { |
3764 | OP *k1 = ((UNOP*)expr)->op_first; | |
3765 | OP *k2 = (k1) ? k1->op_sibling : NULL; | |
3766 | switch (expr->op_type) { | |
3767 | case OP_NULL: | |
3768 | if (k2 && k2->op_type == OP_READLINE | |
3769 | && (k2->op_flags & OPf_STACKED) | |
3770 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) | |
3771 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3772 | break; | |
3773 | ||
3774 | case OP_SASSIGN: | |
3775 | if (k1->op_type == OP_READDIR | |
3776 | || k1->op_type == OP_GLOB | |
72b16652 | 3777 | || (k1->op_type == OP_NULL && k1->op_targ == OP_NULL) |
55d729e4 GS |
3778 | || k1->op_type == OP_EACH) |
3779 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3780 | break; | |
3781 | } | |
774d564b | 3782 | } |
463ee0b2 | 3783 | } |
93a17b20 | 3784 | |
8990e307 | 3785 | listop = append_elem(OP_LINESEQ, block, newOP(OP_UNSTACK, 0)); |
883ffac3 | 3786 | o = new_logop(OP_AND, 0, &expr, &listop); |
463ee0b2 | 3787 | |
883ffac3 CS |
3788 | if (listop) |
3789 | ((LISTOP*)listop)->op_last->op_next = LINKLIST(o); | |
79072805 | 3790 | |
11343788 MB |
3791 | if (once && o != listop) |
3792 | o->op_next = ((LOGOP*)cUNOPo->op_first)->op_other; | |
79072805 | 3793 | |
11343788 MB |
3794 | if (o == listop) |
3795 | o = newUNOP(OP_NULL, 0, o); /* or do {} while 1 loses outer block */ | |
748a9306 | 3796 | |
11343788 MB |
3797 | o->op_flags |= flags; |
3798 | o = scope(o); | |
3799 | o->op_flags |= OPf_SPECIAL; /* suppress POPBLOCK curpm restoration*/ | |
3800 | return o; | |
79072805 LW |
3801 | } |
3802 | ||
3803 | OP * | |
864dbfa3 | 3804 | Perl_newWHILEOP(pTHX_ I32 flags, I32 debuggable, LOOP *loop, I32 whileline, OP *expr, OP *block, OP *cont) |
79072805 | 3805 | { |
11343788 | 3806 | dTHR; |
79072805 LW |
3807 | OP *redo; |
3808 | OP *next = 0; | |
3809 | OP *listop; | |
11343788 | 3810 | OP *o; |
79072805 | 3811 | OP *condop; |
1ba6ee2b | 3812 | U8 loopflags = 0; |
79072805 | 3813 | |
fb73857a | 3814 | if (expr && (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB |
3815 | || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB))) { | |
748a9306 | 3816 | expr = newUNOP(OP_DEFINED, 0, |
54b9620d | 3817 | newASSIGNOP(0, newDEFSVOP(), 0, expr) ); |
55d729e4 GS |
3818 | } else if (expr && (expr->op_flags & OPf_KIDS)) { |
3819 | OP *k1 = ((UNOP*)expr)->op_first; | |
3820 | OP *k2 = (k1) ? k1->op_sibling : NULL; | |
3821 | switch (expr->op_type) { | |
3822 | case OP_NULL: | |
3823 | if (k2 && k2->op_type == OP_READLINE | |
3824 | && (k2->op_flags & OPf_STACKED) | |
3825 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) | |
3826 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3827 | break; | |
3828 | ||
3829 | case OP_SASSIGN: | |
3830 | if (k1->op_type == OP_READDIR | |
3831 | || k1->op_type == OP_GLOB | |
72b16652 | 3832 | || (k1->op_type == OP_NULL && k1->op_targ == OP_GLOB) |
55d729e4 GS |
3833 | || k1->op_type == OP_EACH) |
3834 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3835 | break; | |
3836 | } | |
748a9306 | 3837 | } |
79072805 LW |
3838 | |
3839 | if (!block) | |
3840 | block = newOP(OP_NULL, 0); | |
87246558 GS |
3841 | else if (cont) { |
3842 | block = scope(block); | |
3843 | } | |
79072805 | 3844 | |
1ba6ee2b | 3845 | if (cont) { |
79072805 | 3846 | next = LINKLIST(cont); |
1ba6ee2b GS |
3847 | loopflags |= OPpLOOP_CONTINUE; |
3848 | } | |
fb73857a | 3849 | if (expr) { |
79072805 | 3850 | cont = append_elem(OP_LINESEQ, cont, newOP(OP_UNSTACK, 0)); |
fb73857a | 3851 | if ((line_t)whileline != NOLINE) { |
3280af22 | 3852 | PL_copline = whileline; |
fb73857a | 3853 | cont = append_elem(OP_LINESEQ, cont, |
3854 | newSTATEOP(0, Nullch, Nullop)); | |
3855 | } | |
3856 | } | |
79072805 | 3857 | |
463ee0b2 | 3858 | listop = append_list(OP_LINESEQ, (LISTOP*)block, (LISTOP*)cont); |
79072805 LW |
3859 | redo = LINKLIST(listop); |
3860 | ||
3861 | if (expr) { | |
3280af22 | 3862 | PL_copline = whileline; |
883ffac3 CS |
3863 | scalar(listop); |
3864 | o = new_logop(OP_AND, 0, &expr, &listop); | |
11343788 | 3865 | if (o == expr && o->op_type == OP_CONST && !SvTRUE(cSVOPo->op_sv)) { |
85e6fe83 | 3866 | op_free(expr); /* oops, it's a while (0) */ |
463ee0b2 | 3867 | op_free((OP*)loop); |
883ffac3 | 3868 | return Nullop; /* listop already freed by new_logop */ |
463ee0b2 | 3869 | } |
883ffac3 CS |
3870 | if (listop) |
3871 | ((LISTOP*)listop)->op_last->op_next = condop = | |
3872 | (o == listop ? redo : LINKLIST(o)); | |
79072805 LW |
3873 | if (!next) |
3874 | next = condop; | |
3875 | } | |
3876 | else | |
11343788 | 3877 | o = listop; |
79072805 LW |
3878 | |
3879 | if (!loop) { | |
b7dc083c | 3880 | NewOp(1101,loop,1,LOOP); |
79072805 | 3881 | loop->op_type = OP_ENTERLOOP; |
22c35a8c | 3882 | loop->op_ppaddr = PL_ppaddr[OP_ENTERLOOP]; |
79072805 LW |
3883 | loop->op_private = 0; |
3884 | loop->op_next = (OP*)loop; | |
3885 | } | |
3886 | ||
11343788 | 3887 | o = newBINOP(OP_LEAVELOOP, 0, (OP*)loop, o); |
79072805 LW |
3888 | |
3889 | loop->op_redoop = redo; | |
11343788 | 3890 | loop->op_lastop = o; |
1ba6ee2b | 3891 | o->op_private |= loopflags; |
79072805 LW |
3892 | |
3893 | if (next) | |
3894 | loop->op_nextop = next; | |
3895 | else | |
11343788 | 3896 | loop->op_nextop = o; |
79072805 | 3897 | |
11343788 MB |
3898 | o->op_flags |= flags; |
3899 | o->op_private |= (flags >> 8); | |
3900 | return o; | |
79072805 LW |
3901 | } |
3902 | ||
3903 | OP * | |
864dbfa3 | 3904 | Perl_newFOROP(pTHX_ I32 flags,char *label,line_t forline,OP *sv,OP *expr,OP *block,OP *cont) |
79072805 LW |
3905 | { |
3906 | LOOP *loop; | |
fb73857a | 3907 | OP *wop; |
85e6fe83 | 3908 | int padoff = 0; |
4633a7c4 | 3909 | I32 iterflags = 0; |
79072805 | 3910 | |
79072805 | 3911 | if (sv) { |
85e6fe83 | 3912 | if (sv->op_type == OP_RV2SV) { /* symbol table variable */ |
748a9306 | 3913 | sv->op_type = OP_RV2GV; |
22c35a8c | 3914 | sv->op_ppaddr = PL_ppaddr[OP_RV2GV]; |
79072805 | 3915 | } |
85e6fe83 LW |
3916 | else if (sv->op_type == OP_PADSV) { /* private variable */ |
3917 | padoff = sv->op_targ; | |
743e66e6 | 3918 | sv->op_targ = 0; |
85e6fe83 LW |
3919 | op_free(sv); |
3920 | sv = Nullop; | |
3921 | } | |
54b9620d MB |
3922 | else if (sv->op_type == OP_THREADSV) { /* per-thread variable */ |
3923 | padoff = sv->op_targ; | |
743e66e6 | 3924 | sv->op_targ = 0; |
54b9620d MB |
3925 | iterflags |= OPf_SPECIAL; |
3926 | op_free(sv); | |
3927 | sv = Nullop; | |
3928 | } | |
79072805 | 3929 | else |
cea2e8a9 | 3930 | Perl_croak(aTHX_ "Can't use %s for loop variable", PL_op_desc[sv->op_type]); |
79072805 LW |
3931 | } |
3932 | else { | |
54b9620d MB |
3933 | #ifdef USE_THREADS |
3934 | padoff = find_threadsv("_"); | |
3935 | iterflags |= OPf_SPECIAL; | |
3936 | #else | |
3280af22 | 3937 | sv = newGVOP(OP_GV, 0, PL_defgv); |
54b9620d | 3938 | #endif |
79072805 | 3939 | } |
5f05dabc | 3940 | if (expr->op_type == OP_RV2AV || expr->op_type == OP_PADAV) { |
89ea2908 | 3941 | expr = mod(force_list(scalar(ref(expr, OP_ITER))), OP_GREPSTART); |
4633a7c4 LW |
3942 | iterflags |= OPf_STACKED; |
3943 | } | |
89ea2908 GA |
3944 | else if (expr->op_type == OP_NULL && |
3945 | (expr->op_flags & OPf_KIDS) && | |
3946 | ((BINOP*)expr)->op_first->op_type == OP_FLOP) | |
3947 | { | |
3948 | /* Basically turn for($x..$y) into the same as for($x,$y), but we | |
3949 | * set the STACKED flag to indicate that these values are to be | |
3950 | * treated as min/max values by 'pp_iterinit'. | |
3951 | */ | |
3952 | UNOP* flip = (UNOP*)((UNOP*)((BINOP*)expr)->op_first)->op_first; | |
1a67a97c | 3953 | LOGOP* range = (LOGOP*) flip->op_first; |
89ea2908 GA |
3954 | OP* left = range->op_first; |
3955 | OP* right = left->op_sibling; | |
5152d7c7 | 3956 | LISTOP* listop; |
89ea2908 GA |
3957 | |
3958 | range->op_flags &= ~OPf_KIDS; | |
3959 | range->op_first = Nullop; | |
3960 | ||
5152d7c7 | 3961 | listop = (LISTOP*)newLISTOP(OP_LIST, 0, left, right); |
1a67a97c SM |
3962 | listop->op_first->op_next = range->op_next; |
3963 | left->op_next = range->op_other; | |
5152d7c7 GS |
3964 | right->op_next = (OP*)listop; |
3965 | listop->op_next = listop->op_first; | |
89ea2908 GA |
3966 | |
3967 | op_free(expr); | |
5152d7c7 | 3968 | expr = (OP*)(listop); |
89ea2908 GA |
3969 | null(expr); |
3970 | iterflags |= OPf_STACKED; | |
3971 | } | |
3972 | else { | |
3973 | expr = mod(force_list(expr), OP_GREPSTART); | |
3974 | } | |
3975 | ||
3976 | ||
4633a7c4 | 3977 | loop = (LOOP*)list(convert(OP_ENTERITER, iterflags, |
89ea2908 | 3978 | append_elem(OP_LIST, expr, scalar(sv)))); |
85e6fe83 | 3979 | assert(!loop->op_next); |
b7dc083c | 3980 | #ifdef PL_OP_SLAB_ALLOC |
155aba94 GS |
3981 | { |
3982 | LOOP *tmp; | |
3983 | NewOp(1234,tmp,1,LOOP); | |
3984 | Copy(loop,tmp,1,LOOP); | |
3985 | loop = tmp; | |
3986 | } | |
b7dc083c | 3987 | #else |
85e6fe83 | 3988 | Renew(loop, 1, LOOP); |
b7dc083c | 3989 | #endif |
85e6fe83 | 3990 | loop->op_targ = padoff; |
fb73857a | 3991 | wop = newWHILEOP(flags, 1, loop, forline, newOP(OP_ITER, 0), block, cont); |
3280af22 | 3992 | PL_copline = forline; |
fb73857a | 3993 | return newSTATEOP(0, label, wop); |
79072805 LW |
3994 | } |
3995 | ||
8990e307 | 3996 | OP* |
864dbfa3 | 3997 | Perl_newLOOPEX(pTHX_ I32 type, OP *label) |
8990e307 | 3998 | { |
11343788 MB |
3999 | dTHR; |
4000 | OP *o; | |
2d8e6c8d GS |
4001 | STRLEN n_a; |
4002 | ||
8990e307 | 4003 | if (type != OP_GOTO || label->op_type == OP_CONST) { |
cdaebead MB |
4004 | /* "last()" means "last" */ |
4005 | if (label->op_type == OP_STUB && (label->op_flags & OPf_PARENS)) | |
4006 | o = newOP(type, OPf_SPECIAL); | |
4007 | else { | |
4008 | o = newPVOP(type, 0, savepv(label->op_type == OP_CONST | |
2d8e6c8d | 4009 | ? SvPVx(((SVOP*)label)->op_sv, n_a) |
cdaebead MB |
4010 | : "")); |
4011 | } | |
8990e307 LW |
4012 | op_free(label); |
4013 | } | |
4014 | else { | |
a0d0e21e LW |
4015 | if (label->op_type == OP_ENTERSUB) |
4016 | label = newUNOP(OP_REFGEN, 0, mod(label, OP_REFGEN)); | |
11343788 | 4017 | o = newUNOP(type, OPf_STACKED, label); |
8990e307 | 4018 | } |
3280af22 | 4019 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 | 4020 | return o; |
8990e307 LW |
4021 | } |
4022 | ||
79072805 | 4023 | void |
864dbfa3 | 4024 | Perl_cv_undef(pTHX_ CV *cv) |
79072805 | 4025 | { |
11343788 MB |
4026 | dTHR; |
4027 | #ifdef USE_THREADS | |
e858de61 MB |
4028 | if (CvMUTEXP(cv)) { |
4029 | MUTEX_DESTROY(CvMUTEXP(cv)); | |
4030 | Safefree(CvMUTEXP(cv)); | |
4031 | CvMUTEXP(cv) = 0; | |
4032 | } | |
11343788 MB |
4033 | #endif /* USE_THREADS */ |
4034 | ||
a0d0e21e | 4035 | if (!CvXSUB(cv) && CvROOT(cv)) { |
11343788 MB |
4036 | #ifdef USE_THREADS |
4037 | if (CvDEPTH(cv) || (CvOWNER(cv) && CvOWNER(cv) != thr)) | |
cea2e8a9 | 4038 | Perl_croak(aTHX_ "Can't undef active subroutine"); |
11343788 | 4039 | #else |
a0d0e21e | 4040 | if (CvDEPTH(cv)) |
cea2e8a9 | 4041 | Perl_croak(aTHX_ "Can't undef active subroutine"); |
11343788 | 4042 | #endif /* USE_THREADS */ |
8990e307 | 4043 | ENTER; |
a0d0e21e | 4044 | |
7766f137 | 4045 | SAVEVPTR(PL_curpad); |
3280af22 | 4046 | PL_curpad = 0; |
a0d0e21e | 4047 | |
a5f75d66 | 4048 | if (!CvCLONED(cv)) |
748a9306 | 4049 | op_free(CvROOT(cv)); |
79072805 | 4050 | CvROOT(cv) = Nullop; |
8990e307 | 4051 | LEAVE; |
79072805 | 4052 | } |
1d5db326 | 4053 | SvPOK_off((SV*)cv); /* forget prototype */ |
44a8e56a | 4054 | CvFLAGS(cv) = 0; |
8e07c86e AD |
4055 | SvREFCNT_dec(CvGV(cv)); |
4056 | CvGV(cv) = Nullgv; | |
4057 | SvREFCNT_dec(CvOUTSIDE(cv)); | |
4058 | CvOUTSIDE(cv) = Nullcv; | |
4059 | if (CvPADLIST(cv)) { | |
8ebc5c01 | 4060 | /* may be during global destruction */ |
4061 | if (SvREFCNT(CvPADLIST(cv))) { | |
93965878 | 4062 | I32 i = AvFILLp(CvPADLIST(cv)); |
8ebc5c01 | 4063 | while (i >= 0) { |
4064 | SV** svp = av_fetch(CvPADLIST(cv), i--, FALSE); | |
46fc3d4c | 4065 | SV* sv = svp ? *svp : Nullsv; |
4066 | if (!sv) | |
4067 | continue; | |
3280af22 NIS |
4068 | if (sv == (SV*)PL_comppad_name) |
4069 | PL_comppad_name = Nullav; | |
4070 | else if (sv == (SV*)PL_comppad) { | |
4071 | PL_comppad = Nullav; | |
4072 | PL_curpad = Null(SV**); | |
46fc3d4c | 4073 | } |
4074 | SvREFCNT_dec(sv); | |
8ebc5c01 | 4075 | } |
4076 | SvREFCNT_dec((SV*)CvPADLIST(cv)); | |
8e07c86e | 4077 | } |
8e07c86e AD |
4078 | CvPADLIST(cv) = Nullav; |
4079 | } | |
79072805 LW |
4080 | } |
4081 | ||
76e3520e | 4082 | STATIC void |
743e66e6 | 4083 | S_cv_dump(pTHX_ CV *cv) |
5f05dabc | 4084 | { |
62fde642 | 4085 | #ifdef DEBUGGING |
5f05dabc | 4086 | CV *outside = CvOUTSIDE(cv); |
4087 | AV* padlist = CvPADLIST(cv); | |
4fdae800 | 4088 | AV* pad_name; |
4089 | AV* pad; | |
4090 | SV** pname; | |
4091 | SV** ppad; | |
5f05dabc | 4092 | I32 ix; |
4093 | ||
b900a521 JH |
4094 | PerlIO_printf(Perl_debug_log, |
4095 | "\tCV=0x%"UVxf" (%s), OUTSIDE=0x%"UVxf" (%s)\n", | |
4096 | PTR2UV(cv), | |
ab50184a | 4097 | (CvANON(cv) ? "ANON" |
6b88bc9c | 4098 | : (cv == PL_main_cv) ? "MAIN" |
33b8ce05 | 4099 | : CvUNIQUE(cv) ? "UNIQUE" |
44a8e56a | 4100 | : CvGV(cv) ? GvNAME(CvGV(cv)) : "UNDEFINED"), |
b900a521 | 4101 | PTR2UV(outside), |
ab50184a CS |
4102 | (!outside ? "null" |
4103 | : CvANON(outside) ? "ANON" | |
6b88bc9c | 4104 | : (outside == PL_main_cv) ? "MAIN" |
07055b4c | 4105 | : CvUNIQUE(outside) ? "UNIQUE" |
44a8e56a | 4106 | : CvGV(outside) ? GvNAME(CvGV(outside)) : "UNDEFINED")); |
5f05dabc | 4107 | |
4fdae800 | 4108 | if (!padlist) |
4109 | return; | |
4110 | ||
4111 | pad_name = (AV*)*av_fetch(padlist, 0, FALSE); | |
4112 | pad = (AV*)*av_fetch(padlist, 1, FALSE); | |
4113 | pname = AvARRAY(pad_name); | |
4114 | ppad = AvARRAY(pad); | |
4115 | ||
93965878 | 4116 | for (ix = 1; ix <= AvFILLp(pad_name); ix++) { |
5f05dabc | 4117 | if (SvPOK(pname[ix])) |
b900a521 JH |
4118 | PerlIO_printf(Perl_debug_log, |
4119 | "\t%4d. 0x%"UVxf" (%s\"%s\" %"IVdf"-%"IVdf")\n", | |
894356b3 | 4120 | (int)ix, PTR2UV(ppad[ix]), |
4fdae800 | 4121 | SvFAKE(pname[ix]) ? "FAKE " : "", |
4122 | SvPVX(pname[ix]), | |
b900a521 JH |
4123 | (IV)I_32(SvNVX(pname[ix])), |
4124 | SvIVX(pname[ix])); | |
5f05dabc | 4125 | } |
743e66e6 | 4126 | #endif /* DEBUGGING */ |
62fde642 | 4127 | } |
5f05dabc | 4128 | |
76e3520e | 4129 | STATIC CV * |
cea2e8a9 | 4130 | S_cv_clone2(pTHX_ CV *proto, CV *outside) |
748a9306 | 4131 | { |
11343788 | 4132 | dTHR; |
748a9306 LW |
4133 | AV* av; |
4134 | I32 ix; | |
4135 | AV* protopadlist = CvPADLIST(proto); | |
4136 | AV* protopad_name = (AV*)*av_fetch(protopadlist, 0, FALSE); | |
4137 | AV* protopad = (AV*)*av_fetch(protopadlist, 1, FALSE); | |
5f05dabc | 4138 | SV** pname = AvARRAY(protopad_name); |
4139 | SV** ppad = AvARRAY(protopad); | |
93965878 NIS |
4140 | I32 fname = AvFILLp(protopad_name); |
4141 | I32 fpad = AvFILLp(protopad); | |
748a9306 LW |
4142 | AV* comppadlist; |
4143 | CV* cv; | |
4144 | ||
07055b4c CS |
4145 | assert(!CvUNIQUE(proto)); |
4146 | ||
748a9306 | 4147 | ENTER; |
354992b1 | 4148 | SAVECOMPPAD(); |
3280af22 NIS |
4149 | SAVESPTR(PL_comppad_name); |
4150 | SAVESPTR(PL_compcv); | |
748a9306 | 4151 | |
3280af22 | 4152 | cv = PL_compcv = (CV*)NEWSV(1104,0); |
fa83b5b6 | 4153 | sv_upgrade((SV *)cv, SvTYPE(proto)); |
a57ec3bd | 4154 | CvFLAGS(cv) = CvFLAGS(proto) & ~CVf_CLONE; |
a5f75d66 | 4155 | CvCLONED_on(cv); |
748a9306 | 4156 | |
11343788 | 4157 | #ifdef USE_THREADS |
12ca11f6 | 4158 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
11343788 | 4159 | MUTEX_INIT(CvMUTEXP(cv)); |
11343788 MB |
4160 | CvOWNER(cv) = 0; |
4161 | #endif /* USE_THREADS */ | |
57843af0 | 4162 | CvFILE(cv) = CvFILE(proto); |
44a8e56a | 4163 | CvGV(cv) = (GV*)SvREFCNT_inc(CvGV(proto)); |
748a9306 LW |
4164 | CvSTASH(cv) = CvSTASH(proto); |
4165 | CvROOT(cv) = CvROOT(proto); | |
4166 | CvSTART(cv) = CvSTART(proto); | |
5f05dabc | 4167 | if (outside) |
4168 | CvOUTSIDE(cv) = (CV*)SvREFCNT_inc(outside); | |
748a9306 | 4169 | |
68dc0745 | 4170 | if (SvPOK(proto)) |
4171 | sv_setpvn((SV*)cv, SvPVX(proto), SvCUR(proto)); | |
4172 | ||
3280af22 | 4173 | PL_comppad_name = newAV(); |
46fc3d4c | 4174 | for (ix = fname; ix >= 0; ix--) |
3280af22 | 4175 | av_store(PL_comppad_name, ix, SvREFCNT_inc(pname[ix])); |
748a9306 | 4176 | |
3280af22 | 4177 | PL_comppad = newAV(); |
748a9306 LW |
4178 | |
4179 | comppadlist = newAV(); | |
4180 | AvREAL_off(comppadlist); | |
3280af22 NIS |
4181 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
4182 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
748a9306 | 4183 | CvPADLIST(cv) = comppadlist; |
3280af22 NIS |
4184 | av_fill(PL_comppad, AvFILLp(protopad)); |
4185 | PL_curpad = AvARRAY(PL_comppad); | |
748a9306 LW |
4186 | |
4187 | av = newAV(); /* will be @_ */ | |
4188 | av_extend(av, 0); | |
3280af22 | 4189 | av_store(PL_comppad, 0, (SV*)av); |
748a9306 LW |
4190 | AvFLAGS(av) = AVf_REIFY; |
4191 | ||
9607fc9c | 4192 | for (ix = fpad; ix > 0; ix--) { |
4193 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; | |
3280af22 | 4194 | if (namesv && namesv != &PL_sv_undef) { |
aa689395 | 4195 | char *name = SvPVX(namesv); /* XXX */ |
4196 | if (SvFLAGS(namesv) & SVf_FAKE) { /* lexical from outside? */ | |
4197 | I32 off = pad_findlex(name, ix, SvIVX(namesv), | |
2680586e | 4198 | CvOUTSIDE(cv), cxstack_ix, 0, 0); |
5f05dabc | 4199 | if (!off) |
3280af22 | 4200 | PL_curpad[ix] = SvREFCNT_inc(ppad[ix]); |
5f05dabc | 4201 | else if (off != ix) |
cea2e8a9 | 4202 | Perl_croak(aTHX_ "panic: cv_clone: %s", name); |
748a9306 LW |
4203 | } |
4204 | else { /* our own lexical */ | |
aa689395 | 4205 | SV* sv; |
5f05dabc | 4206 | if (*name == '&') { |
4207 | /* anon code -- we'll come back for it */ | |
4208 | sv = SvREFCNT_inc(ppad[ix]); | |
4209 | } | |
4210 | else if (*name == '@') | |
4211 | sv = (SV*)newAV(); | |
748a9306 | 4212 | else if (*name == '%') |
5f05dabc | 4213 | sv = (SV*)newHV(); |
748a9306 | 4214 | else |
5f05dabc | 4215 | sv = NEWSV(0,0); |
4216 | if (!SvPADBUSY(sv)) | |
4217 | SvPADMY_on(sv); | |
3280af22 | 4218 | PL_curpad[ix] = sv; |
748a9306 LW |
4219 | } |
4220 | } | |
7766f137 | 4221 | else if (IS_PADGV(ppad[ix]) || IS_PADCONST(ppad[ix])) { |
743e66e6 GS |
4222 | PL_curpad[ix] = SvREFCNT_inc(ppad[ix]); |
4223 | } | |
748a9306 | 4224 | else { |
aa689395 | 4225 | SV* sv = NEWSV(0,0); |
748a9306 | 4226 | SvPADTMP_on(sv); |
3280af22 | 4227 | PL_curpad[ix] = sv; |
748a9306 LW |
4228 | } |
4229 | } | |
4230 | ||
5f05dabc | 4231 | /* Now that vars are all in place, clone nested closures. */ |
4232 | ||
9607fc9c | 4233 | for (ix = fpad; ix > 0; ix--) { |
4234 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; | |
aa689395 | 4235 | if (namesv |
3280af22 | 4236 | && namesv != &PL_sv_undef |
aa689395 | 4237 | && !(SvFLAGS(namesv) & SVf_FAKE) |
4238 | && *SvPVX(namesv) == '&' | |
5f05dabc | 4239 | && CvCLONE(ppad[ix])) |
4240 | { | |
4241 | CV *kid = cv_clone2((CV*)ppad[ix], cv); | |
4242 | SvREFCNT_dec(ppad[ix]); | |
4243 | CvCLONE_on(kid); | |
4244 | SvPADMY_on(kid); | |
3280af22 | 4245 | PL_curpad[ix] = (SV*)kid; |
748a9306 LW |
4246 | } |
4247 | } | |
4248 | ||
5f05dabc | 4249 | #ifdef DEBUG_CLOSURES |
ab50184a CS |
4250 | PerlIO_printf(Perl_debug_log, "Cloned inside:\n"); |
4251 | cv_dump(outside); | |
4252 | PerlIO_printf(Perl_debug_log, " from:\n"); | |
5f05dabc | 4253 | cv_dump(proto); |
ab50184a | 4254 | PerlIO_printf(Perl_debug_log, " to:\n"); |
5f05dabc | 4255 | cv_dump(cv); |
4256 | #endif | |
4257 | ||
748a9306 LW |
4258 | LEAVE; |
4259 | return cv; | |
4260 | } | |
4261 | ||
4262 | CV * | |
864dbfa3 | 4263 | Perl_cv_clone(pTHX_ CV *proto) |
5f05dabc | 4264 | { |
b099ddc0 | 4265 | CV *cv; |
1feb2720 | 4266 | LOCK_CRED_MUTEX; /* XXX create separate mutex */ |
b099ddc0 | 4267 | cv = cv_clone2(proto, CvOUTSIDE(proto)); |
1feb2720 | 4268 | UNLOCK_CRED_MUTEX; /* XXX create separate mutex */ |
b099ddc0 | 4269 | return cv; |
5f05dabc | 4270 | } |
4271 | ||
3fe9a6f1 | 4272 | void |
864dbfa3 | 4273 | Perl_cv_ckproto(pTHX_ CV *cv, GV *gv, char *p) |
3fe9a6f1 | 4274 | { |
0453d815 PM |
4275 | dTHR; |
4276 | ||
e476b1b5 | 4277 | if (((!p != !SvPOK(cv)) || (p && strNE(p, SvPVX(cv)))) && ckWARN_d(WARN_PROTOTYPE)) { |
46fc3d4c | 4278 | SV* msg = sv_newmortal(); |
3fe9a6f1 | 4279 | SV* name = Nullsv; |
4280 | ||
4281 | if (gv) | |
46fc3d4c | 4282 | gv_efullname3(name = sv_newmortal(), gv, Nullch); |
4283 | sv_setpv(msg, "Prototype mismatch:"); | |
4284 | if (name) | |
894356b3 | 4285 | Perl_sv_catpvf(aTHX_ msg, " sub %"SVf, name); |
3fe9a6f1 | 4286 | if (SvPOK(cv)) |
cea2e8a9 | 4287 | Perl_sv_catpvf(aTHX_ msg, " (%s)", SvPVX(cv)); |
46fc3d4c | 4288 | sv_catpv(msg, " vs "); |
4289 | if (p) | |
cea2e8a9 | 4290 | Perl_sv_catpvf(aTHX_ msg, "(%s)", p); |
46fc3d4c | 4291 | else |
4292 | sv_catpv(msg, "none"); | |
e476b1b5 | 4293 | Perl_warner(aTHX_ WARN_PROTOTYPE, "%"SVf, msg); |
3fe9a6f1 | 4294 | } |
4295 | } | |
4296 | ||
760ac839 | 4297 | SV * |
864dbfa3 | 4298 | Perl_cv_const_sv(pTHX_ CV *cv) |
760ac839 | 4299 | { |
54310121 | 4300 | if (!cv || !SvPOK(cv) || SvCUR(cv)) |
4301 | return Nullsv; | |
fe5e78ed GS |
4302 | return op_const_sv(CvSTART(cv), cv); |
4303 | } | |
760ac839 | 4304 | |
fe5e78ed | 4305 | SV * |
864dbfa3 | 4306 | Perl_op_const_sv(pTHX_ OP *o, CV *cv) |
fe5e78ed GS |
4307 | { |
4308 | SV *sv = Nullsv; | |
4309 | ||
0f79a09d | 4310 | if (!o) |
fe5e78ed GS |
4311 | return Nullsv; |
4312 | ||
0f79a09d | 4313 | if (o->op_type == OP_LINESEQ && cLISTOPo->op_first) |
fe5e78ed GS |
4314 | o = cLISTOPo->op_first->op_sibling; |
4315 | ||
4316 | for (; o; o = o->op_next) { | |
54310121 | 4317 | OPCODE type = o->op_type; |
fe5e78ed | 4318 | |
acb36ea4 | 4319 | if (sv && o->op_next == o) |
fe5e78ed | 4320 | return sv; |
54310121 | 4321 | if (type == OP_NEXTSTATE || type == OP_NULL || type == OP_PUSHMARK) |
4322 | continue; | |
4323 | if (type == OP_LEAVESUB || type == OP_RETURN) | |
4324 | break; | |
4325 | if (sv) | |
4326 | return Nullsv; | |
7766f137 | 4327 | if (type == OP_CONST && cSVOPo->op_sv) |
5dc0d613 | 4328 | sv = cSVOPo->op_sv; |
7766f137 | 4329 | else if ((type == OP_PADSV || type == OP_CONST) && cv) { |
e858de61 MB |
4330 | AV* padav = (AV*)(AvARRAY(CvPADLIST(cv))[1]); |
4331 | sv = padav ? AvARRAY(padav)[o->op_targ] : Nullsv; | |
5aabfad6 | 4332 | if (!sv || (!SvREADONLY(sv) && SvREFCNT(sv) > 1)) |
54310121 | 4333 | return Nullsv; |
760ac839 | 4334 | } |
54310121 | 4335 | else |
4336 | return Nullsv; | |
760ac839 | 4337 | } |
5aabfad6 | 4338 | if (sv) |
4339 | SvREADONLY_on(sv); | |
760ac839 LW |
4340 | return sv; |
4341 | } | |
4342 | ||
09bef843 SB |
4343 | void |
4344 | Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) | |
4345 | { | |
4346 | if (o) | |
4347 | SAVEFREEOP(o); | |
4348 | if (proto) | |
4349 | SAVEFREEOP(proto); | |
4350 | if (attrs) | |
4351 | SAVEFREEOP(attrs); | |
4352 | if (block) | |
4353 | SAVEFREEOP(block); | |
4354 | Perl_croak(aTHX_ "\"my sub\" not yet implemented"); | |
4355 | } | |
4356 | ||
748a9306 | 4357 | CV * |
864dbfa3 | 4358 | Perl_newSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *block) |
79072805 | 4359 | { |
09bef843 SB |
4360 | return Perl_newATTRSUB(aTHX_ floor, o, proto, Nullop, block); |
4361 | } | |
4362 | ||
4363 | CV * | |
4364 | Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) | |
4365 | { | |
11343788 | 4366 | dTHR; |
2d8e6c8d | 4367 | STRLEN n_a; |
83ee9e09 GS |
4368 | char *name; |
4369 | char *aname; | |
4370 | GV *gv; | |
2d8e6c8d | 4371 | char *ps = proto ? SvPVx(((SVOP*)proto)->op_sv, n_a) : Nullch; |
a2008d6d | 4372 | register CV *cv=0; |
a0d0e21e | 4373 | I32 ix; |
79072805 | 4374 | |
83ee9e09 GS |
4375 | name = o ? SvPVx(cSVOPo->op_sv, n_a) : Nullch; |
4376 | if (!name && PERLDB_NAMEANON && CopLINE(PL_curcop)) { | |
4377 | SV *sv = sv_newmortal(); | |
4378 | Perl_sv_setpvf(aTHX_ sv, "__ANON__[%s:%"IVdf"]", | |
4379 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
4380 | aname = SvPVX(sv); | |
4381 | } | |
4382 | else | |
4383 | aname = Nullch; | |
4384 | gv = gv_fetchpv(name ? name : (aname ? aname : "__ANON__"), | |
4385 | GV_ADDMULTI | ((block || attrs) ? 0 : GV_NOINIT), | |
4386 | SVt_PVCV); | |
4387 | ||
11343788 | 4388 | if (o) |
5dc0d613 | 4389 | SAVEFREEOP(o); |
3fe9a6f1 | 4390 | if (proto) |
4391 | SAVEFREEOP(proto); | |
09bef843 SB |
4392 | if (attrs) |
4393 | SAVEFREEOP(attrs); | |
3fe9a6f1 | 4394 | |
09bef843 | 4395 | if (SvTYPE(gv) != SVt_PVGV) { /* Maybe prototype now, and had at |
55d729e4 GS |
4396 | maximum a prototype before. */ |
4397 | if (SvTYPE(gv) > SVt_NULL) { | |
0453d815 | 4398 | if (!SvPOK((SV*)gv) && !(SvIOK((SV*)gv) && SvIVX((SV*)gv) == -1) |
e476b1b5 | 4399 | && ckWARN_d(WARN_PROTOTYPE)) |
f248d071 | 4400 | { |
e476b1b5 | 4401 | Perl_warner(aTHX_ WARN_PROTOTYPE, "Runaway prototype"); |
f248d071 | 4402 | } |
55d729e4 GS |
4403 | cv_ckproto((CV*)gv, NULL, ps); |
4404 | } | |
4405 | if (ps) | |
4406 | sv_setpv((SV*)gv, ps); | |
4407 | else | |
4408 | sv_setiv((SV*)gv, -1); | |
3280af22 NIS |
4409 | SvREFCNT_dec(PL_compcv); |
4410 | cv = PL_compcv = NULL; | |
4411 | PL_sub_generation++; | |
55d729e4 GS |
4412 | goto noblock; |
4413 | } | |
4414 | ||
68dc0745 | 4415 | if (!name || GvCVGEN(gv)) |
4416 | cv = Nullcv; | |
155aba94 | 4417 | else if ((cv = GvCV(gv))) { |
3fe9a6f1 | 4418 | cv_ckproto(cv, gv, ps); |
68dc0745 | 4419 | /* already defined (or promised)? */ |
4420 | if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) { | |
4421 | SV* const_sv; | |
fe5e78ed | 4422 | bool const_changed = TRUE; |
09bef843 | 4423 | if (!block && !attrs) { |
aa689395 | 4424 | /* just a "sub foo;" when &foo is already defined */ |
3280af22 | 4425 | SAVEFREESV(PL_compcv); |
aa689395 | 4426 | goto done; |
4427 | } | |
7bac28a0 | 4428 | /* ahem, death to those who redefine active sort subs */ |
3280af22 | 4429 | if (PL_curstackinfo->si_type == PERLSI_SORT && PL_sortcop == CvSTART(cv)) |
cea2e8a9 | 4430 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", name); |
09bef843 SB |
4431 | if (!block) |
4432 | goto withattrs; | |
155aba94 | 4433 | if ((const_sv = cv_const_sv(cv))) |
fe5e78ed | 4434 | const_changed = sv_cmp(const_sv, op_const_sv(block, Nullcv)); |
e476b1b5 | 4435 | if ((const_sv || const_changed) && ckWARN(WARN_REDEFINE)) |
83ee9e09 | 4436 | { |
57843af0 GS |
4437 | line_t oldline = CopLINE(PL_curcop); |
4438 | CopLINE_set(PL_curcop, PL_copline); | |
cea2e8a9 | 4439 | Perl_warner(aTHX_ WARN_REDEFINE, |
599cee73 | 4440 | const_sv ? "Constant subroutine %s redefined" |
09bef843 | 4441 | : "Subroutine %s redefined", name); |
57843af0 | 4442 | CopLINE_set(PL_curcop, oldline); |
79072805 | 4443 | } |
8990e307 | 4444 | SvREFCNT_dec(cv); |
68dc0745 | 4445 | cv = Nullcv; |
79072805 LW |
4446 | } |
4447 | } | |
09bef843 SB |
4448 | withattrs: |
4449 | if (attrs) { | |
4450 | HV *stash; | |
4451 | SV *rcv; | |
4452 | ||
4453 | /* Need to do a C<use attributes $stash_of_cv,\&cv,@attrs> | |
4454 | * before we clobber PL_compcv. | |
4455 | */ | |
4456 | if (cv && !block) { | |
4457 | rcv = (SV*)cv; | |
4458 | if (CvGV(cv) && GvSTASH(CvGV(cv)) && HvNAME(GvSTASH(CvGV(cv)))) | |
4459 | stash = GvSTASH(CvGV(cv)); | |
4460 | else if (CvSTASH(cv) && HvNAME(CvSTASH(cv))) | |
4461 | stash = CvSTASH(cv); | |
4462 | else | |
4463 | stash = PL_curstash; | |
4464 | } | |
4465 | else { | |
4466 | /* possibly about to re-define existing subr -- ignore old cv */ | |
4467 | rcv = (SV*)PL_compcv; | |
4468 | if (name && GvSTASH(gv) && HvNAME(GvSTASH(gv))) | |
4469 | stash = GvSTASH(gv); | |
4470 | else | |
4471 | stash = PL_curstash; | |
4472 | } | |
4473 | apply_attrs(stash, rcv, attrs); | |
4474 | } | |
a0d0e21e | 4475 | if (cv) { /* must reuse cv if autoloaded */ |
09bef843 SB |
4476 | if (!block) { |
4477 | /* got here with just attrs -- work done, so bug out */ | |
4478 | SAVEFREESV(PL_compcv); | |
4479 | goto done; | |
4480 | } | |
4633a7c4 | 4481 | cv_undef(cv); |
3280af22 NIS |
4482 | CvFLAGS(cv) = CvFLAGS(PL_compcv); |
4483 | CvOUTSIDE(cv) = CvOUTSIDE(PL_compcv); | |
4484 | CvOUTSIDE(PL_compcv) = 0; | |
4485 | CvPADLIST(cv) = CvPADLIST(PL_compcv); | |
4486 | CvPADLIST(PL_compcv) = 0; | |
4487 | if (SvREFCNT(PL_compcv) > 1) /* XXX Make closures transit through stub. */ | |
4488 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc((SV*)cv); | |
4489 | SvREFCNT_dec(PL_compcv); | |
a0d0e21e LW |
4490 | } |
4491 | else { | |
3280af22 | 4492 | cv = PL_compcv; |
44a8e56a | 4493 | if (name) { |
4494 | GvCV(gv) = cv; | |
4495 | GvCVGEN(gv) = 0; | |
3280af22 | 4496 | PL_sub_generation++; |
44a8e56a | 4497 | } |
a0d0e21e | 4498 | } |
44a8e56a | 4499 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
57843af0 | 4500 | CvFILE(cv) = CopFILE(PL_curcop); |
3280af22 | 4501 | CvSTASH(cv) = PL_curstash; |
11343788 MB |
4502 | #ifdef USE_THREADS |
4503 | CvOWNER(cv) = 0; | |
1cfa4ec7 | 4504 | if (!CvMUTEXP(cv)) { |
f6aaf501 | 4505 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
1cfa4ec7 GS |
4506 | MUTEX_INIT(CvMUTEXP(cv)); |
4507 | } | |
11343788 | 4508 | #endif /* USE_THREADS */ |
8990e307 | 4509 | |
3fe9a6f1 | 4510 | if (ps) |
4511 | sv_setpv((SV*)cv, ps); | |
4633a7c4 | 4512 | |
3280af22 | 4513 | if (PL_error_count) { |
c07a80fd | 4514 | op_free(block); |
4515 | block = Nullop; | |
68dc0745 | 4516 | if (name) { |
4517 | char *s = strrchr(name, ':'); | |
4518 | s = s ? s+1 : name; | |
6d4c2119 CS |
4519 | if (strEQ(s, "BEGIN")) { |
4520 | char *not_safe = | |
4521 | "BEGIN not safe after errors--compilation aborted"; | |
faef0170 | 4522 | if (PL_in_eval & EVAL_KEEPERR) |
cea2e8a9 | 4523 | Perl_croak(aTHX_ not_safe); |
6d4c2119 CS |
4524 | else { |
4525 | /* force display of errors found but not reported */ | |
38a03e6e | 4526 | sv_catpv(ERRSV, not_safe); |
cea2e8a9 | 4527 | Perl_croak(aTHX_ "%s", SvPVx(ERRSV, n_a)); |
6d4c2119 CS |
4528 | } |
4529 | } | |
68dc0745 | 4530 | } |
c07a80fd | 4531 | } |
a0d0e21e | 4532 | if (!block) { |
55d729e4 | 4533 | noblock: |
3280af22 | 4534 | PL_copline = NOLINE; |
a0d0e21e LW |
4535 | LEAVE_SCOPE(floor); |
4536 | return cv; | |
4537 | } | |
4538 | ||
3280af22 NIS |
4539 | if (AvFILLp(PL_comppad_name) < AvFILLp(PL_comppad)) |
4540 | av_store(PL_comppad_name, AvFILLp(PL_comppad), Nullsv); | |
a0d0e21e | 4541 | |
7766f137 GS |
4542 | if (CvLVALUE(cv)) { |
4543 | CvROOT(cv) = newUNOP(OP_LEAVESUBLV, 0, scalarseq(block)); | |
4544 | } | |
4545 | else { | |
4546 | CvROOT(cv) = newUNOP(OP_LEAVESUB, 0, scalarseq(block)); | |
4547 | } | |
4548 | CvROOT(cv)->op_private |= OPpREFCOUNTED; | |
4549 | OpREFCNT_set(CvROOT(cv), 1); | |
4550 | CvSTART(cv) = LINKLIST(CvROOT(cv)); | |
4551 | CvROOT(cv)->op_next = 0; | |
4552 | peep(CvSTART(cv)); | |
4553 | ||
4554 | /* now that optimizer has done its work, adjust pad values */ | |
54310121 | 4555 | if (CvCLONE(cv)) { |
3280af22 NIS |
4556 | SV **namep = AvARRAY(PL_comppad_name); |
4557 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { | |
54310121 | 4558 | SV *namesv; |
4559 | ||
7766f137 | 4560 | if (SvIMMORTAL(PL_curpad[ix]) || IS_PADGV(PL_curpad[ix]) || IS_PADCONST(PL_curpad[ix])) |
54310121 | 4561 | continue; |
4562 | /* | |
4563 | * The only things that a clonable function needs in its | |
4564 | * pad are references to outer lexicals and anonymous subs. | |
4565 | * The rest are created anew during cloning. | |
4566 | */ | |
4567 | if (!((namesv = namep[ix]) != Nullsv && | |
3280af22 | 4568 | namesv != &PL_sv_undef && |
54310121 | 4569 | (SvFAKE(namesv) || |
4570 | *SvPVX(namesv) == '&'))) | |
4571 | { | |
3280af22 NIS |
4572 | SvREFCNT_dec(PL_curpad[ix]); |
4573 | PL_curpad[ix] = Nullsv; | |
54310121 | 4574 | } |
4575 | } | |
a0d0e21e | 4576 | } |
54310121 | 4577 | else { |
4578 | AV *av = newAV(); /* Will be @_ */ | |
4579 | av_extend(av, 0); | |
3280af22 | 4580 | av_store(PL_comppad, 0, (SV*)av); |
54310121 | 4581 | AvFLAGS(av) = AVf_REIFY; |
79072805 | 4582 | |
3280af22 | 4583 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { |
7766f137 | 4584 | if (SvIMMORTAL(PL_curpad[ix]) || IS_PADGV(PL_curpad[ix]) || IS_PADCONST(PL_curpad[ix])) |
54310121 | 4585 | continue; |
3280af22 NIS |
4586 | if (!SvPADMY(PL_curpad[ix])) |
4587 | SvPADTMP_on(PL_curpad[ix]); | |
54310121 | 4588 | } |
4589 | } | |
79072805 | 4590 | |
83ee9e09 | 4591 | if (name || aname) { |
44a8e56a | 4592 | char *s; |
83ee9e09 | 4593 | char *tname = (name ? name : aname); |
44a8e56a | 4594 | |
3280af22 | 4595 | if (PERLDB_SUBLINE && PL_curstash != PL_debstash) { |
46fc3d4c | 4596 | SV *sv = NEWSV(0,0); |
44a8e56a | 4597 | SV *tmpstr = sv_newmortal(); |
549bb64a | 4598 | GV *db_postponed = gv_fetchpv("DB::postponed", GV_ADDMULTI, SVt_PVHV); |
83ee9e09 | 4599 | CV *pcv; |
44a8e56a | 4600 | HV *hv; |
4601 | ||
ed094faf GS |
4602 | Perl_sv_setpvf(aTHX_ sv, "%s:%ld-%ld", |
4603 | CopFILE(PL_curcop), | |
cc49e20b | 4604 | (long)PL_subline, (long)CopLINE(PL_curcop)); |
44a8e56a | 4605 | gv_efullname3(tmpstr, gv, Nullch); |
3280af22 | 4606 | hv_store(GvHV(PL_DBsub), SvPVX(tmpstr), SvCUR(tmpstr), sv, 0); |
44a8e56a | 4607 | hv = GvHVn(db_postponed); |
9607fc9c | 4608 | if (HvFILL(hv) > 0 && hv_exists(hv, SvPVX(tmpstr), SvCUR(tmpstr)) |
83ee9e09 GS |
4609 | && (pcv = GvCV(db_postponed))) |
4610 | { | |
44a8e56a | 4611 | dSP; |
924508f0 | 4612 | PUSHMARK(SP); |
44a8e56a | 4613 | XPUSHs(tmpstr); |
4614 | PUTBACK; | |
83ee9e09 | 4615 | call_sv((SV*)pcv, G_DISCARD); |
44a8e56a | 4616 | } |
4617 | } | |
79072805 | 4618 | |
83ee9e09 | 4619 | if ((s = strrchr(tname,':'))) |
28757baa | 4620 | s++; |
4621 | else | |
83ee9e09 | 4622 | s = tname; |
ed094faf | 4623 | |
7d30b5c4 | 4624 | if (*s != 'B' && *s != 'E' && *s != 'C' && *s != 'I') |
ed094faf GS |
4625 | goto done; |
4626 | ||
68dc0745 | 4627 | if (strEQ(s, "BEGIN")) { |
3280af22 | 4628 | I32 oldscope = PL_scopestack_ix; |
28757baa | 4629 | ENTER; |
57843af0 GS |
4630 | SAVECOPFILE(&PL_compiling); |
4631 | SAVECOPLINE(&PL_compiling); | |
3280af22 NIS |
4632 | save_svref(&PL_rs); |
4633 | sv_setsv(PL_rs, PL_nrs); | |
28757baa | 4634 | |
3280af22 NIS |
4635 | if (!PL_beginav) |
4636 | PL_beginav = newAV(); | |
28757baa | 4637 | DEBUG_x( dump_sub(gv) ); |
ed094faf | 4638 | av_push(PL_beginav, SvREFCNT_inc(cv)); |
28757baa | 4639 | GvCV(gv) = 0; |
3280af22 | 4640 | call_list(oldscope, PL_beginav); |
a6006777 | 4641 | |
3280af22 | 4642 | PL_curcop = &PL_compiling; |
a0ed51b3 | 4643 | PL_compiling.op_private = PL_hints; |
28757baa | 4644 | LEAVE; |
4645 | } | |
3280af22 NIS |
4646 | else if (strEQ(s, "END") && !PL_error_count) { |
4647 | if (!PL_endav) | |
4648 | PL_endav = newAV(); | |
ed094faf | 4649 | DEBUG_x( dump_sub(gv) ); |
3280af22 | 4650 | av_unshift(PL_endav, 1); |
ed094faf | 4651 | av_store(PL_endav, 0, SvREFCNT_inc(cv)); |
28757baa | 4652 | GvCV(gv) = 0; |
4653 | } | |
7d30b5c4 GS |
4654 | else if (strEQ(s, "CHECK") && !PL_error_count) { |
4655 | if (!PL_checkav) | |
4656 | PL_checkav = newAV(); | |
ed094faf | 4657 | DEBUG_x( dump_sub(gv) ); |
ddda08b7 GS |
4658 | if (PL_main_start && ckWARN(WARN_VOID)) |
4659 | Perl_warner(aTHX_ WARN_VOID, "Too late to run CHECK block"); | |
7d30b5c4 GS |
4660 | av_unshift(PL_checkav, 1); |
4661 | av_store(PL_checkav, 0, SvREFCNT_inc(cv)); | |
4f25aa18 GS |
4662 | GvCV(gv) = 0; |
4663 | } | |
3280af22 NIS |
4664 | else if (strEQ(s, "INIT") && !PL_error_count) { |
4665 | if (!PL_initav) | |
4666 | PL_initav = newAV(); | |
ed094faf | 4667 | DEBUG_x( dump_sub(gv) ); |
ddda08b7 GS |
4668 | if (PL_main_start && ckWARN(WARN_VOID)) |
4669 | Perl_warner(aTHX_ WARN_VOID, "Too late to run INIT block"); | |
3280af22 | 4670 | av_push(PL_initav, SvREFCNT_inc(cv)); |
b7aad4fe | 4671 | GvCV(gv) = 0; |
ae77835f | 4672 | } |
79072805 | 4673 | } |
a6006777 | 4674 | |
aa689395 | 4675 | done: |
3280af22 | 4676 | PL_copline = NOLINE; |
8990e307 | 4677 | LEAVE_SCOPE(floor); |
a0d0e21e | 4678 | return cv; |
79072805 LW |
4679 | } |
4680 | ||
b099ddc0 | 4681 | /* XXX unsafe for threads if eval_owner isn't held */ |
954c1994 GS |
4682 | /* |
4683 | =for apidoc newCONSTSUB | |
4684 | ||
4685 | Creates a constant sub equivalent to Perl C<sub FOO () { 123 }> which is | |
4686 | eligible for inlining at compile-time. | |
4687 | ||
4688 | =cut | |
4689 | */ | |
4690 | ||
5476c433 | 4691 | void |
864dbfa3 | 4692 | Perl_newCONSTSUB(pTHX_ HV *stash, char *name, SV *sv) |
5476c433 JD |
4693 | { |
4694 | dTHR; | |
5476c433 | 4695 | |
11faa288 GS |
4696 | ENTER; |
4697 | SAVECOPLINE(PL_curcop); | |
4698 | SAVEHINTS(); | |
4699 | ||
4700 | CopLINE_set(PL_curcop, PL_copline); | |
3280af22 | 4701 | PL_hints &= ~HINT_BLOCK_SCOPE; |
11faa288 GS |
4702 | |
4703 | if (stash) { | |
4704 | SAVESPTR(PL_curstash); | |
4705 | SAVECOPSTASH(PL_curcop); | |
4706 | PL_curstash = stash; | |
4707 | #ifdef USE_ITHREADS | |
4708 | CopSTASHPV(PL_curcop) = stash ? HvNAME(stash) : Nullch; | |
4709 | #else | |
4710 | CopSTASH(PL_curcop) = stash; | |
4711 | #endif | |
4712 | } | |
5476c433 | 4713 | |
09bef843 | 4714 | newATTRSUB( |
be24f278 | 4715 | start_subparse(FALSE, 0), |
5476c433 | 4716 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
6b88bc9c | 4717 | newSVOP(OP_CONST, 0, &PL_sv_no), /* SvPV(&PL_sv_no) == "" -- GMB */ |
09bef843 | 4718 | Nullop, |
5476c433 JD |
4719 | newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv)) |
4720 | ); | |
4721 | ||
11faa288 | 4722 | LEAVE; |
5476c433 JD |
4723 | } |
4724 | ||
954c1994 GS |
4725 | /* |
4726 | =for apidoc U||newXS | |
4727 | ||
4728 | Used by C<xsubpp> to hook up XSUBs as Perl subs. | |
4729 | ||
4730 | =cut | |
4731 | */ | |
4732 | ||
57d3b86d | 4733 | CV * |
864dbfa3 | 4734 | Perl_newXS(pTHX_ char *name, XSUBADDR_t subaddr, char *filename) |
a0d0e21e | 4735 | { |
11343788 | 4736 | dTHR; |
44a8e56a | 4737 | GV *gv = gv_fetchpv(name ? name : "__ANON__", GV_ADDMULTI, SVt_PVCV); |
79072805 | 4738 | register CV *cv; |
44a8e56a | 4739 | |
155aba94 | 4740 | if ((cv = (name ? GvCV(gv) : Nullcv))) { |
44a8e56a | 4741 | if (GvCVGEN(gv)) { |
4742 | /* just a cached method */ | |
4743 | SvREFCNT_dec(cv); | |
4744 | cv = 0; | |
4745 | } | |
4746 | else if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) { | |
4747 | /* already defined (or promised) */ | |
599cee73 | 4748 | if (ckWARN(WARN_REDEFINE) && !(CvGV(cv) && GvSTASH(CvGV(cv)) |
2f34f9d4 IZ |
4749 | && HvNAME(GvSTASH(CvGV(cv))) |
4750 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), "autouse"))) { | |
57843af0 | 4751 | line_t oldline = CopLINE(PL_curcop); |
51f6edd3 | 4752 | if (PL_copline != NOLINE) |
57843af0 | 4753 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 4754 | Perl_warner(aTHX_ WARN_REDEFINE, "Subroutine %s redefined",name); |
57843af0 | 4755 | CopLINE_set(PL_curcop, oldline); |
a0d0e21e LW |
4756 | } |
4757 | SvREFCNT_dec(cv); | |
4758 | cv = 0; | |
79072805 | 4759 | } |
79072805 | 4760 | } |
44a8e56a | 4761 | |
4762 | if (cv) /* must reuse cv if autoloaded */ | |
4763 | cv_undef(cv); | |
a0d0e21e LW |
4764 | else { |
4765 | cv = (CV*)NEWSV(1105,0); | |
4766 | sv_upgrade((SV *)cv, SVt_PVCV); | |
44a8e56a | 4767 | if (name) { |
4768 | GvCV(gv) = cv; | |
4769 | GvCVGEN(gv) = 0; | |
3280af22 | 4770 | PL_sub_generation++; |
44a8e56a | 4771 | } |
a0d0e21e | 4772 | } |
5196be3e | 4773 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
11343788 | 4774 | #ifdef USE_THREADS |
12ca11f6 | 4775 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
11343788 | 4776 | MUTEX_INIT(CvMUTEXP(cv)); |
11343788 MB |
4777 | CvOWNER(cv) = 0; |
4778 | #endif /* USE_THREADS */ | |
b195d487 | 4779 | (void)gv_fetchfile(filename); |
57843af0 GS |
4780 | CvFILE(cv) = filename; /* NOTE: not copied, as it is expected to be |
4781 | an external constant string */ | |
a0d0e21e | 4782 | CvXSUB(cv) = subaddr; |
44a8e56a | 4783 | |
28757baa | 4784 | if (name) { |
4785 | char *s = strrchr(name,':'); | |
4786 | if (s) | |
4787 | s++; | |
4788 | else | |
4789 | s = name; | |
ed094faf | 4790 | |
7d30b5c4 | 4791 | if (*s != 'B' && *s != 'E' && *s != 'C' && *s != 'I') |
ed094faf GS |
4792 | goto done; |
4793 | ||
28757baa | 4794 | if (strEQ(s, "BEGIN")) { |
3280af22 NIS |
4795 | if (!PL_beginav) |
4796 | PL_beginav = newAV(); | |
ed094faf | 4797 | av_push(PL_beginav, SvREFCNT_inc(cv)); |
44a8e56a | 4798 | GvCV(gv) = 0; |
28757baa | 4799 | } |
4800 | else if (strEQ(s, "END")) { | |
3280af22 NIS |
4801 | if (!PL_endav) |
4802 | PL_endav = newAV(); | |
4803 | av_unshift(PL_endav, 1); | |
ed094faf | 4804 | av_store(PL_endav, 0, SvREFCNT_inc(cv)); |
44a8e56a | 4805 | GvCV(gv) = 0; |
28757baa | 4806 | } |
7d30b5c4 GS |
4807 | else if (strEQ(s, "CHECK")) { |
4808 | if (!PL_checkav) | |
4809 | PL_checkav = newAV(); | |
ddda08b7 GS |
4810 | if (PL_main_start && ckWARN(WARN_VOID)) |
4811 | Perl_warner(aTHX_ WARN_VOID, "Too late to run CHECK block"); | |
7d30b5c4 GS |
4812 | av_unshift(PL_checkav, 1); |
4813 | av_store(PL_checkav, 0, SvREFCNT_inc(cv)); | |
4f25aa18 GS |
4814 | GvCV(gv) = 0; |
4815 | } | |
7d07dbc2 | 4816 | else if (strEQ(s, "INIT")) { |
3280af22 NIS |
4817 | if (!PL_initav) |
4818 | PL_initav = newAV(); | |
ddda08b7 GS |
4819 | if (PL_main_start && ckWARN(WARN_VOID)) |
4820 | Perl_warner(aTHX_ WARN_VOID, "Too late to run INIT block"); | |
ed094faf | 4821 | av_push(PL_initav, SvREFCNT_inc(cv)); |
f8f842e4 | 4822 | GvCV(gv) = 0; |
ae77835f | 4823 | } |
28757baa | 4824 | } |
8990e307 | 4825 | else |
a5f75d66 | 4826 | CvANON_on(cv); |
44a8e56a | 4827 | |
ed094faf | 4828 | done: |
a0d0e21e | 4829 | return cv; |
79072805 LW |
4830 | } |
4831 | ||
4832 | void | |
864dbfa3 | 4833 | Perl_newFORM(pTHX_ I32 floor, OP *o, OP *block) |
79072805 | 4834 | { |
11343788 | 4835 | dTHR; |
79072805 LW |
4836 | register CV *cv; |
4837 | char *name; | |
4838 | GV *gv; | |
a0d0e21e | 4839 | I32 ix; |
2d8e6c8d | 4840 | STRLEN n_a; |
79072805 | 4841 | |
11343788 | 4842 | if (o) |
2d8e6c8d | 4843 | name = SvPVx(cSVOPo->op_sv, n_a); |
79072805 LW |
4844 | else |
4845 | name = "STDOUT"; | |
85e6fe83 | 4846 | gv = gv_fetchpv(name,TRUE, SVt_PVFM); |
a5f75d66 | 4847 | GvMULTI_on(gv); |
155aba94 | 4848 | if ((cv = GvFORM(gv))) { |
599cee73 | 4849 | if (ckWARN(WARN_REDEFINE)) { |
57843af0 | 4850 | line_t oldline = CopLINE(PL_curcop); |
79072805 | 4851 | |
57843af0 | 4852 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 4853 | Perl_warner(aTHX_ WARN_REDEFINE, "Format %s redefined",name); |
57843af0 | 4854 | CopLINE_set(PL_curcop, oldline); |
79072805 | 4855 | } |
8990e307 | 4856 | SvREFCNT_dec(cv); |
79072805 | 4857 | } |
3280af22 | 4858 | cv = PL_compcv; |
79072805 | 4859 | GvFORM(gv) = cv; |
44a8e56a | 4860 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
57843af0 | 4861 | CvFILE(cv) = CopFILE(PL_curcop); |
79072805 | 4862 | |
3280af22 NIS |
4863 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { |
4864 | if (!SvPADMY(PL_curpad[ix]) && !SvIMMORTAL(PL_curpad[ix])) | |
4865 | SvPADTMP_on(PL_curpad[ix]); | |
a0d0e21e LW |
4866 | } |
4867 | ||
79072805 | 4868 | CvROOT(cv) = newUNOP(OP_LEAVEWRITE, 0, scalarseq(block)); |
7934575e GS |
4869 | CvROOT(cv)->op_private |= OPpREFCOUNTED; |
4870 | OpREFCNT_set(CvROOT(cv), 1); | |
79072805 LW |
4871 | CvSTART(cv) = LINKLIST(CvROOT(cv)); |
4872 | CvROOT(cv)->op_next = 0; | |
4873 | peep(CvSTART(cv)); | |
11343788 | 4874 | op_free(o); |
3280af22 | 4875 | PL_copline = NOLINE; |
8990e307 | 4876 | LEAVE_SCOPE(floor); |
79072805 LW |
4877 | } |
4878 | ||
4879 | OP * | |
864dbfa3 | 4880 | Perl_newANONLIST(pTHX_ OP *o) |
79072805 | 4881 | { |
93a17b20 | 4882 | return newUNOP(OP_REFGEN, 0, |
11343788 | 4883 | mod(list(convert(OP_ANONLIST, 0, o)), OP_REFGEN)); |
79072805 LW |
4884 | } |
4885 | ||
4886 | OP * | |
864dbfa3 | 4887 | Perl_newANONHASH(pTHX_ OP *o) |
79072805 | 4888 | { |
93a17b20 | 4889 | return newUNOP(OP_REFGEN, 0, |
11343788 | 4890 | mod(list(convert(OP_ANONHASH, 0, o)), OP_REFGEN)); |
a0d0e21e LW |
4891 | } |
4892 | ||
4893 | OP * | |
864dbfa3 | 4894 | Perl_newANONSUB(pTHX_ I32 floor, OP *proto, OP *block) |
a0d0e21e | 4895 | { |
09bef843 SB |
4896 | return newANONATTRSUB(floor, proto, Nullop, block); |
4897 | } | |
4898 | ||
4899 | OP * | |
4900 | Perl_newANONATTRSUB(pTHX_ I32 floor, OP *proto, OP *attrs, OP *block) | |
4901 | { | |
a0d0e21e | 4902 | return newUNOP(OP_REFGEN, 0, |
09bef843 SB |
4903 | newSVOP(OP_ANONCODE, 0, |
4904 | (SV*)newATTRSUB(floor, 0, proto, attrs, block))); | |
79072805 LW |
4905 | } |
4906 | ||
4907 | OP * | |
864dbfa3 | 4908 | Perl_oopsAV(pTHX_ OP *o) |
79072805 | 4909 | { |
ed6116ce LW |
4910 | switch (o->op_type) { |
4911 | case OP_PADSV: | |
4912 | o->op_type = OP_PADAV; | |
22c35a8c | 4913 | o->op_ppaddr = PL_ppaddr[OP_PADAV]; |
51e247a3 | 4914 | return ref(o, OP_RV2AV); |
ed6116ce LW |
4915 | |
4916 | case OP_RV2SV: | |
79072805 | 4917 | o->op_type = OP_RV2AV; |
22c35a8c | 4918 | o->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
79072805 | 4919 | ref(o, OP_RV2AV); |
ed6116ce LW |
4920 | break; |
4921 | ||
4922 | default: | |
0453d815 PM |
4923 | if (ckWARN_d(WARN_INTERNAL)) |
4924 | Perl_warner(aTHX_ WARN_INTERNAL, "oops: oopsAV"); | |
ed6116ce LW |
4925 | break; |
4926 | } | |
79072805 LW |
4927 | return o; |
4928 | } | |
4929 | ||
4930 | OP * | |
864dbfa3 | 4931 | Perl_oopsHV(pTHX_ OP *o) |
79072805 | 4932 | { |
0453d815 | 4933 | dTHR; |
0453d815 | 4934 | |
ed6116ce LW |
4935 | switch (o->op_type) { |
4936 | case OP_PADSV: | |
4937 | case OP_PADAV: | |
4938 | o->op_type = OP_PADHV; | |
22c35a8c | 4939 | o->op_ppaddr = PL_ppaddr[OP_PADHV]; |
51e247a3 | 4940 | return ref(o, OP_RV2HV); |
ed6116ce LW |
4941 | |
4942 | case OP_RV2SV: | |
4943 | case OP_RV2AV: | |
79072805 | 4944 | o->op_type = OP_RV2HV; |
22c35a8c | 4945 | o->op_ppaddr = PL_ppaddr[OP_RV2HV]; |
79072805 | 4946 | ref(o, OP_RV2HV); |
ed6116ce LW |
4947 | break; |
4948 | ||
4949 | default: | |
0453d815 PM |
4950 | if (ckWARN_d(WARN_INTERNAL)) |
4951 | Perl_warner(aTHX_ WARN_INTERNAL, "oops: oopsHV"); | |
ed6116ce LW |
4952 | break; |
4953 | } | |
79072805 LW |
4954 | return o; |
4955 | } | |
4956 | ||
4957 | OP * | |
864dbfa3 | 4958 | Perl_newAVREF(pTHX_ OP *o) |
79072805 | 4959 | { |
ed6116ce LW |
4960 | if (o->op_type == OP_PADANY) { |
4961 | o->op_type = OP_PADAV; | |
22c35a8c | 4962 | o->op_ppaddr = PL_ppaddr[OP_PADAV]; |
93a17b20 | 4963 | return o; |
ed6116ce | 4964 | } |
79072805 LW |
4965 | return newUNOP(OP_RV2AV, 0, scalar(o)); |
4966 | } | |
4967 | ||
4968 | OP * | |
864dbfa3 | 4969 | Perl_newGVREF(pTHX_ I32 type, OP *o) |
79072805 | 4970 | { |
82092f1d | 4971 | if (type == OP_MAPSTART || type == OP_GREPSTART || type == OP_SORT) |
a0d0e21e | 4972 | return newUNOP(OP_NULL, 0, o); |
748a9306 | 4973 | return ref(newUNOP(OP_RV2GV, OPf_REF, o), type); |
79072805 LW |
4974 | } |
4975 | ||
4976 | OP * | |
864dbfa3 | 4977 | Perl_newHVREF(pTHX_ OP *o) |
79072805 | 4978 | { |
ed6116ce LW |
4979 | if (o->op_type == OP_PADANY) { |
4980 | o->op_type = OP_PADHV; | |
22c35a8c | 4981 | o->op_ppaddr = PL_ppaddr[OP_PADHV]; |
93a17b20 | 4982 | return o; |
ed6116ce | 4983 | } |
79072805 LW |
4984 | return newUNOP(OP_RV2HV, 0, scalar(o)); |
4985 | } | |
4986 | ||
4987 | OP * | |
864dbfa3 | 4988 | Perl_oopsCV(pTHX_ OP *o) |
79072805 | 4989 | { |
cea2e8a9 | 4990 | Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__); |
79072805 LW |
4991 | /* STUB */ |
4992 | return o; | |
4993 | } | |
4994 | ||
4995 | OP * | |
864dbfa3 | 4996 | Perl_newCVREF(pTHX_ I32 flags, OP *o) |
79072805 | 4997 | { |
c07a80fd | 4998 | return newUNOP(OP_RV2CV, flags, scalar(o)); |
79072805 LW |
4999 | } |
5000 | ||
5001 | OP * | |
864dbfa3 | 5002 | Perl_newSVREF(pTHX_ OP *o) |
79072805 | 5003 | { |
ed6116ce LW |
5004 | if (o->op_type == OP_PADANY) { |
5005 | o->op_type = OP_PADSV; | |
22c35a8c | 5006 | o->op_ppaddr = PL_ppaddr[OP_PADSV]; |
93a17b20 | 5007 | return o; |
ed6116ce | 5008 | } |
224a4551 MB |
5009 | else if (o->op_type == OP_THREADSV && !(o->op_flags & OPpDONE_SVREF)) { |
5010 | o->op_flags |= OPpDONE_SVREF; | |
a863c7d1 | 5011 | return o; |
224a4551 | 5012 | } |
79072805 LW |
5013 | return newUNOP(OP_RV2SV, 0, scalar(o)); |
5014 | } | |
5015 | ||
5016 | /* Check routines. */ | |
5017 | ||
5018 | OP * | |
cea2e8a9 | 5019 | Perl_ck_anoncode(pTHX_ OP *o) |
5f05dabc | 5020 | { |
178c6305 CS |
5021 | PADOFFSET ix; |
5022 | SV* name; | |
5023 | ||
5024 | name = NEWSV(1106,0); | |
5025 | sv_upgrade(name, SVt_PVNV); | |
5026 | sv_setpvn(name, "&", 1); | |
5027 | SvIVX(name) = -1; | |
5028 | SvNVX(name) = 1; | |
5dc0d613 | 5029 | ix = pad_alloc(o->op_type, SVs_PADMY); |
3280af22 NIS |
5030 | av_store(PL_comppad_name, ix, name); |
5031 | av_store(PL_comppad, ix, cSVOPo->op_sv); | |
5dc0d613 MB |
5032 | SvPADMY_on(cSVOPo->op_sv); |
5033 | cSVOPo->op_sv = Nullsv; | |
5034 | cSVOPo->op_targ = ix; | |
5035 | return o; | |
5f05dabc | 5036 | } |
5037 | ||
5038 | OP * | |
cea2e8a9 | 5039 | Perl_ck_bitop(pTHX_ OP *o) |
55497cff | 5040 | { |
3280af22 | 5041 | o->op_private = PL_hints; |
5dc0d613 | 5042 | return o; |
55497cff | 5043 | } |
5044 | ||
5045 | OP * | |
cea2e8a9 | 5046 | Perl_ck_concat(pTHX_ OP *o) |
79072805 | 5047 | { |
11343788 MB |
5048 | if (cUNOPo->op_first->op_type == OP_CONCAT) |
5049 | o->op_flags |= OPf_STACKED; | |
5050 | return o; | |
79072805 LW |
5051 | } |
5052 | ||
5053 | OP * | |
cea2e8a9 | 5054 | Perl_ck_spair(pTHX_ OP *o) |
79072805 | 5055 | { |
11343788 | 5056 | if (o->op_flags & OPf_KIDS) { |
79072805 | 5057 | OP* newop; |
a0d0e21e | 5058 | OP* kid; |
5dc0d613 MB |
5059 | OPCODE type = o->op_type; |
5060 | o = modkids(ck_fun(o), type); | |
11343788 | 5061 | kid = cUNOPo->op_first; |
a0d0e21e LW |
5062 | newop = kUNOP->op_first->op_sibling; |
5063 | if (newop && | |
5064 | (newop->op_sibling || | |
22c35a8c | 5065 | !(PL_opargs[newop->op_type] & OA_RETSCALAR) || |
a0d0e21e LW |
5066 | newop->op_type == OP_PADAV || newop->op_type == OP_PADHV || |
5067 | newop->op_type == OP_RV2AV || newop->op_type == OP_RV2HV)) { | |
aeea060c | 5068 | |
11343788 | 5069 | return o; |
a0d0e21e LW |
5070 | } |
5071 | op_free(kUNOP->op_first); | |
5072 | kUNOP->op_first = newop; | |
5073 | } | |
22c35a8c | 5074 | o->op_ppaddr = PL_ppaddr[++o->op_type]; |
11343788 | 5075 | return ck_fun(o); |
a0d0e21e LW |
5076 | } |
5077 | ||
5078 | OP * | |
cea2e8a9 | 5079 | Perl_ck_delete(pTHX_ OP *o) |
a0d0e21e | 5080 | { |
11343788 | 5081 | o = ck_fun(o); |
5dc0d613 | 5082 | o->op_private = 0; |
11343788 MB |
5083 | if (o->op_flags & OPf_KIDS) { |
5084 | OP *kid = cUNOPo->op_first; | |
01020589 GS |
5085 | switch (kid->op_type) { |
5086 | case OP_ASLICE: | |
5087 | o->op_flags |= OPf_SPECIAL; | |
5088 | /* FALL THROUGH */ | |
5089 | case OP_HSLICE: | |
5dc0d613 | 5090 | o->op_private |= OPpSLICE; |
01020589 GS |
5091 | break; |
5092 | case OP_AELEM: | |
5093 | o->op_flags |= OPf_SPECIAL; | |
5094 | /* FALL THROUGH */ | |
5095 | case OP_HELEM: | |
5096 | break; | |
5097 | default: | |
5098 | Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element or slice", | |
22c35a8c | 5099 | PL_op_desc[o->op_type]); |
01020589 | 5100 | } |
a0d0e21e | 5101 | null(kid); |
79072805 | 5102 | } |
11343788 | 5103 | return o; |
79072805 LW |
5104 | } |
5105 | ||
5106 | OP * | |
cea2e8a9 | 5107 | Perl_ck_eof(pTHX_ OP *o) |
79072805 | 5108 | { |
11343788 | 5109 | I32 type = o->op_type; |
79072805 | 5110 | |
11343788 MB |
5111 | if (o->op_flags & OPf_KIDS) { |
5112 | if (cLISTOPo->op_first->op_type == OP_STUB) { | |
5113 | op_free(o); | |
5114 | o = newUNOP(type, OPf_SPECIAL, | |
d58bf5aa | 5115 | newGVOP(OP_GV, 0, gv_fetchpv("main::ARGV", TRUE, SVt_PVAV))); |
8990e307 | 5116 | } |
11343788 | 5117 | return ck_fun(o); |
79072805 | 5118 | } |
11343788 | 5119 | return o; |
79072805 LW |
5120 | } |
5121 | ||
5122 | OP * | |
cea2e8a9 | 5123 | Perl_ck_eval(pTHX_ OP *o) |
79072805 | 5124 | { |
3280af22 | 5125 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 MB |
5126 | if (o->op_flags & OPf_KIDS) { |
5127 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
79072805 | 5128 | |
93a17b20 | 5129 | if (!kid) { |
11343788 MB |
5130 | o->op_flags &= ~OPf_KIDS; |
5131 | null(o); | |
79072805 LW |
5132 | } |
5133 | else if (kid->op_type == OP_LINESEQ) { | |
5134 | LOGOP *enter; | |
5135 | ||
11343788 MB |
5136 | kid->op_next = o->op_next; |
5137 | cUNOPo->op_first = 0; | |
5138 | op_free(o); | |
79072805 | 5139 | |
b7dc083c | 5140 | NewOp(1101, enter, 1, LOGOP); |
79072805 | 5141 | enter->op_type = OP_ENTERTRY; |
22c35a8c | 5142 | enter->op_ppaddr = PL_ppaddr[OP_ENTERTRY]; |
79072805 LW |
5143 | enter->op_private = 0; |
5144 | ||
5145 | /* establish postfix order */ | |
5146 | enter->op_next = (OP*)enter; | |
5147 | ||
11343788 MB |
5148 | o = prepend_elem(OP_LINESEQ, (OP*)enter, (OP*)kid); |
5149 | o->op_type = OP_LEAVETRY; | |
22c35a8c | 5150 | o->op_ppaddr = PL_ppaddr[OP_LEAVETRY]; |
11343788 MB |
5151 | enter->op_other = o; |
5152 | return o; | |
79072805 | 5153 | } |
c7cc6f1c | 5154 | else |
473986ff | 5155 | scalar((OP*)kid); |
79072805 LW |
5156 | } |
5157 | else { | |
11343788 | 5158 | op_free(o); |
54b9620d | 5159 | o = newUNOP(OP_ENTEREVAL, 0, newDEFSVOP()); |
79072805 | 5160 | } |
3280af22 | 5161 | o->op_targ = (PADOFFSET)PL_hints; |
11343788 | 5162 | return o; |
79072805 LW |
5163 | } |
5164 | ||
5165 | OP * | |
cea2e8a9 | 5166 | Perl_ck_exec(pTHX_ OP *o) |
79072805 LW |
5167 | { |
5168 | OP *kid; | |
11343788 MB |
5169 | if (o->op_flags & OPf_STACKED) { |
5170 | o = ck_fun(o); | |
5171 | kid = cUNOPo->op_first->op_sibling; | |
8990e307 LW |
5172 | if (kid->op_type == OP_RV2GV) |
5173 | null(kid); | |
79072805 | 5174 | } |
463ee0b2 | 5175 | else |
11343788 MB |
5176 | o = listkids(o); |
5177 | return o; | |
79072805 LW |
5178 | } |
5179 | ||
5180 | OP * | |
cea2e8a9 | 5181 | Perl_ck_exists(pTHX_ OP *o) |
5f05dabc | 5182 | { |
5196be3e MB |
5183 | o = ck_fun(o); |
5184 | if (o->op_flags & OPf_KIDS) { | |
5185 | OP *kid = cUNOPo->op_first; | |
afebc493 GS |
5186 | if (kid->op_type == OP_ENTERSUB) { |
5187 | (void) ref(kid, o->op_type); | |
5188 | if (kid->op_type != OP_RV2CV && !PL_error_count) | |
5189 | Perl_croak(aTHX_ "%s argument is not a subroutine name", | |
5190 | PL_op_desc[o->op_type]); | |
5191 | o->op_private |= OPpEXISTS_SUB; | |
5192 | } | |
5193 | else if (kid->op_type == OP_AELEM) | |
01020589 GS |
5194 | o->op_flags |= OPf_SPECIAL; |
5195 | else if (kid->op_type != OP_HELEM) | |
5196 | Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element", | |
5197 | PL_op_desc[o->op_type]); | |
5f05dabc | 5198 | null(kid); |
5199 | } | |
5196be3e | 5200 | return o; |
5f05dabc | 5201 | } |
5202 | ||
22c35a8c | 5203 | #if 0 |
5f05dabc | 5204 | OP * |
cea2e8a9 | 5205 | Perl_ck_gvconst(pTHX_ register OP *o) |
79072805 LW |
5206 | { |
5207 | o = fold_constants(o); | |
5208 | if (o->op_type == OP_CONST) | |
5209 | o->op_type = OP_GV; | |
5210 | return o; | |
5211 | } | |
22c35a8c | 5212 | #endif |
79072805 LW |
5213 | |
5214 | OP * | |
cea2e8a9 | 5215 | Perl_ck_rvconst(pTHX_ register OP *o) |
79072805 | 5216 | { |
11343788 MB |
5217 | dTHR; |
5218 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
85e6fe83 | 5219 | |
3280af22 | 5220 | o->op_private |= (PL_hints & HINT_STRICT_REFS); |
79072805 | 5221 | if (kid->op_type == OP_CONST) { |
44a8e56a | 5222 | char *name; |
5223 | int iscv; | |
5224 | GV *gv; | |
779c5bc9 | 5225 | SV *kidsv = kid->op_sv; |
2d8e6c8d | 5226 | STRLEN n_a; |
44a8e56a | 5227 | |
779c5bc9 GS |
5228 | /* Is it a constant from cv_const_sv()? */ |
5229 | if (SvROK(kidsv) && SvREADONLY(kidsv)) { | |
5230 | SV *rsv = SvRV(kidsv); | |
5231 | int svtype = SvTYPE(rsv); | |
5232 | char *badtype = Nullch; | |
5233 | ||
5234 | switch (o->op_type) { | |
5235 | case OP_RV2SV: | |
5236 | if (svtype > SVt_PVMG) | |
5237 | badtype = "a SCALAR"; | |
5238 | break; | |
5239 | case OP_RV2AV: | |
5240 | if (svtype != SVt_PVAV) | |
5241 | badtype = "an ARRAY"; | |
5242 | break; | |
5243 | case OP_RV2HV: | |
5244 | if (svtype != SVt_PVHV) { | |
5245 | if (svtype == SVt_PVAV) { /* pseudohash? */ | |
5246 | SV **ksv = av_fetch((AV*)rsv, 0, FALSE); | |
5247 | if (ksv && SvROK(*ksv) | |
5248 | && SvTYPE(SvRV(*ksv)) == SVt_PVHV) | |
5249 | { | |
5250 | break; | |
5251 | } | |
5252 | } | |
5253 | badtype = "a HASH"; | |
5254 | } | |
5255 | break; | |
5256 | case OP_RV2CV: | |
5257 | if (svtype != SVt_PVCV) | |
5258 | badtype = "a CODE"; | |
5259 | break; | |
5260 | } | |
5261 | if (badtype) | |
cea2e8a9 | 5262 | Perl_croak(aTHX_ "Constant is not %s reference", badtype); |
779c5bc9 GS |
5263 | return o; |
5264 | } | |
2d8e6c8d | 5265 | name = SvPV(kidsv, n_a); |
3280af22 | 5266 | if ((PL_hints & HINT_STRICT_REFS) && (kid->op_private & OPpCONST_BARE)) { |
44a8e56a | 5267 | char *badthing = Nullch; |
5dc0d613 | 5268 | switch (o->op_type) { |
44a8e56a | 5269 | case OP_RV2SV: |
5270 | badthing = "a SCALAR"; | |
5271 | break; | |
5272 | case OP_RV2AV: | |
5273 | badthing = "an ARRAY"; | |
5274 | break; | |
5275 | case OP_RV2HV: | |
5276 | badthing = "a HASH"; | |
5277 | break; | |
5278 | } | |
5279 | if (badthing) | |
cea2e8a9 | 5280 | Perl_croak(aTHX_ |
44a8e56a | 5281 | "Can't use bareword (\"%s\") as %s ref while \"strict refs\" in use", |
5282 | name, badthing); | |
5283 | } | |
93233ece CS |
5284 | /* |
5285 | * This is a little tricky. We only want to add the symbol if we | |
5286 | * didn't add it in the lexer. Otherwise we get duplicate strict | |
5287 | * warnings. But if we didn't add it in the lexer, we must at | |
5288 | * least pretend like we wanted to add it even if it existed before, | |
5289 | * or we get possible typo warnings. OPpCONST_ENTERED says | |
5290 | * whether the lexer already added THIS instance of this symbol. | |
5291 | */ | |
5196be3e | 5292 | iscv = (o->op_type == OP_RV2CV) * 2; |
93233ece | 5293 | do { |
44a8e56a | 5294 | gv = gv_fetchpv(name, |
748a9306 | 5295 | iscv | !(kid->op_private & OPpCONST_ENTERED), |
a0d0e21e LW |
5296 | iscv |
5297 | ? SVt_PVCV | |
11343788 | 5298 | : o->op_type == OP_RV2SV |
a0d0e21e | 5299 | ? SVt_PV |
11343788 | 5300 | : o->op_type == OP_RV2AV |
a0d0e21e | 5301 | ? SVt_PVAV |
11343788 | 5302 | : o->op_type == OP_RV2HV |
a0d0e21e LW |
5303 | ? SVt_PVHV |
5304 | : SVt_PVGV); | |
93233ece CS |
5305 | } while (!gv && !(kid->op_private & OPpCONST_ENTERED) && !iscv++); |
5306 | if (gv) { | |
5307 | kid->op_type = OP_GV; | |
5308 | SvREFCNT_dec(kid->op_sv); | |
350de78d | 5309 | #ifdef USE_ITHREADS |
638eceb6 | 5310 | /* XXX hack: dependence on sizeof(PADOP) <= sizeof(SVOP) */ |
350de78d | 5311 | kPADOP->op_padix = pad_alloc(OP_GV, SVs_PADTMP); |
743e66e6 | 5312 | GvIN_PAD_on(gv); |
350de78d GS |
5313 | PL_curpad[kPADOP->op_padix] = SvREFCNT_inc(gv); |
5314 | #else | |
93233ece | 5315 | kid->op_sv = SvREFCNT_inc(gv); |
350de78d | 5316 | #endif |
76cd736e | 5317 | kid->op_ppaddr = PL_ppaddr[OP_GV]; |
a0d0e21e | 5318 | } |
79072805 | 5319 | } |
11343788 | 5320 | return o; |
79072805 LW |
5321 | } |
5322 | ||
5323 | OP * | |
cea2e8a9 | 5324 | Perl_ck_ftst(pTHX_ OP *o) |
79072805 | 5325 | { |
11343788 MB |
5326 | dTHR; |
5327 | I32 type = o->op_type; | |
79072805 | 5328 | |
d0dca557 JD |
5329 | if (o->op_flags & OPf_REF) { |
5330 | /* nothing */ | |
5331 | } | |
5332 | else if (o->op_flags & OPf_KIDS && cUNOPo->op_first->op_type != OP_STUB) { | |
11343788 | 5333 | SVOP *kid = (SVOP*)cUNOPo->op_first; |
79072805 LW |
5334 | |
5335 | if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { | |
2d8e6c8d | 5336 | STRLEN n_a; |
a0d0e21e | 5337 | OP *newop = newGVOP(type, OPf_REF, |
2d8e6c8d | 5338 | gv_fetchpv(SvPVx(kid->op_sv, n_a), TRUE, SVt_PVIO)); |
11343788 | 5339 | op_free(o); |
d0dca557 | 5340 | o = newop; |
79072805 LW |
5341 | } |
5342 | } | |
5343 | else { | |
11343788 | 5344 | op_free(o); |
79072805 | 5345 | if (type == OP_FTTTY) |
d0dca557 | 5346 | o = newGVOP(type, OPf_REF, gv_fetchpv("main::STDIN", TRUE, |
85e6fe83 | 5347 | SVt_PVIO)); |
79072805 | 5348 | else |
d0dca557 | 5349 | o = newUNOP(type, 0, newDEFSVOP()); |
79072805 | 5350 | } |
d0dca557 JD |
5351 | #ifdef USE_LOCALE |
5352 | if (type == OP_FTTEXT || type == OP_FTBINARY) { | |
5353 | o->op_private = 0; | |
5354 | if (PL_hints & HINT_LOCALE) | |
5355 | o->op_private |= OPpLOCALE; | |
5356 | } | |
5357 | #endif | |
11343788 | 5358 | return o; |
79072805 LW |
5359 | } |
5360 | ||
5361 | OP * | |
cea2e8a9 | 5362 | Perl_ck_fun(pTHX_ OP *o) |
79072805 | 5363 | { |
11343788 | 5364 | dTHR; |
79072805 LW |
5365 | register OP *kid; |
5366 | OP **tokid; | |
5367 | OP *sibl; | |
5368 | I32 numargs = 0; | |
11343788 | 5369 | int type = o->op_type; |
22c35a8c | 5370 | register I32 oa = PL_opargs[type] >> OASHIFT; |
aeea060c | 5371 | |
11343788 | 5372 | if (o->op_flags & OPf_STACKED) { |
79072805 LW |
5373 | if ((oa & OA_OPTIONAL) && (oa >> 4) && !((oa >> 4) & OA_OPTIONAL)) |
5374 | oa &= ~OA_OPTIONAL; | |
5375 | else | |
11343788 | 5376 | return no_fh_allowed(o); |
79072805 LW |
5377 | } |
5378 | ||
11343788 | 5379 | if (o->op_flags & OPf_KIDS) { |
2d8e6c8d | 5380 | STRLEN n_a; |
11343788 MB |
5381 | tokid = &cLISTOPo->op_first; |
5382 | kid = cLISTOPo->op_first; | |
8990e307 | 5383 | if (kid->op_type == OP_PUSHMARK || |
155aba94 | 5384 | (kid->op_type == OP_NULL && kid->op_targ == OP_PUSHMARK)) |
8990e307 | 5385 | { |
79072805 LW |
5386 | tokid = &kid->op_sibling; |
5387 | kid = kid->op_sibling; | |
5388 | } | |
22c35a8c | 5389 | if (!kid && PL_opargs[type] & OA_DEFGV) |
54b9620d | 5390 | *tokid = kid = newDEFSVOP(); |
79072805 LW |
5391 | |
5392 | while (oa && kid) { | |
5393 | numargs++; | |
5394 | sibl = kid->op_sibling; | |
5395 | switch (oa & 7) { | |
5396 | case OA_SCALAR: | |
62c18ce2 GS |
5397 | /* list seen where single (scalar) arg expected? */ |
5398 | if (numargs == 1 && !(oa >> 4) | |
5399 | && kid->op_type == OP_LIST && type != OP_SCALAR) | |
5400 | { | |
5401 | return too_many_arguments(o,PL_op_desc[type]); | |
5402 | } | |
79072805 LW |
5403 | scalar(kid); |
5404 | break; | |
5405 | case OA_LIST: | |
5406 | if (oa < 16) { | |
5407 | kid = 0; | |
5408 | continue; | |
5409 | } | |
5410 | else | |
5411 | list(kid); | |
5412 | break; | |
5413 | case OA_AVREF: | |
5414 | if (kid->op_type == OP_CONST && | |
62c18ce2 GS |
5415 | (kid->op_private & OPpCONST_BARE)) |
5416 | { | |
2d8e6c8d | 5417 | char *name = SvPVx(((SVOP*)kid)->op_sv, n_a); |
79072805 | 5418 | OP *newop = newAVREF(newGVOP(OP_GV, 0, |
85e6fe83 | 5419 | gv_fetchpv(name, TRUE, SVt_PVAV) )); |
e476b1b5 GS |
5420 | if (ckWARN(WARN_DEPRECATED)) |
5421 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
57def98f | 5422 | "Array @%s missing the @ in argument %"IVdf" of %s()", |
cf2093f6 | 5423 | name, (IV)numargs, PL_op_desc[type]); |
79072805 LW |
5424 | op_free(kid); |
5425 | kid = newop; | |
5426 | kid->op_sibling = sibl; | |
5427 | *tokid = kid; | |
5428 | } | |
8990e307 | 5429 | else if (kid->op_type != OP_RV2AV && kid->op_type != OP_PADAV) |
35cd451c | 5430 | bad_type(numargs, "array", PL_op_desc[type], kid); |
a0d0e21e | 5431 | mod(kid, type); |
79072805 LW |
5432 | break; |
5433 | case OA_HVREF: | |
5434 | if (kid->op_type == OP_CONST && | |
62c18ce2 GS |
5435 | (kid->op_private & OPpCONST_BARE)) |
5436 | { | |
2d8e6c8d | 5437 | char *name = SvPVx(((SVOP*)kid)->op_sv, n_a); |
79072805 | 5438 | OP *newop = newHVREF(newGVOP(OP_GV, 0, |
85e6fe83 | 5439 | gv_fetchpv(name, TRUE, SVt_PVHV) )); |
e476b1b5 GS |
5440 | if (ckWARN(WARN_DEPRECATED)) |
5441 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
57def98f | 5442 | "Hash %%%s missing the %% in argument %"IVdf" of %s()", |
cf2093f6 | 5443 | name, (IV)numargs, PL_op_desc[type]); |
79072805 LW |
5444 | op_free(kid); |
5445 | kid = newop; | |
5446 | kid->op_sibling = sibl; | |
5447 | *tokid = kid; | |
5448 | } | |
8990e307 | 5449 | else if (kid->op_type != OP_RV2HV && kid->op_type != OP_PADHV) |
35cd451c | 5450 | bad_type(numargs, "hash", PL_op_desc[type], kid); |
a0d0e21e | 5451 | mod(kid, type); |
79072805 LW |
5452 | break; |
5453 | case OA_CVREF: | |
5454 | { | |
a0d0e21e | 5455 | OP *newop = newUNOP(OP_NULL, 0, kid); |
79072805 LW |
5456 | kid->op_sibling = 0; |
5457 | linklist(kid); | |
5458 | newop->op_next = newop; | |
5459 | kid = newop; | |
5460 | kid->op_sibling = sibl; | |
5461 | *tokid = kid; | |
5462 | } | |
5463 | break; | |
5464 | case OA_FILEREF: | |
c340be78 | 5465 | if (kid->op_type != OP_GV && kid->op_type != OP_RV2GV) { |
79072805 | 5466 | if (kid->op_type == OP_CONST && |
62c18ce2 GS |
5467 | (kid->op_private & OPpCONST_BARE)) |
5468 | { | |
79072805 | 5469 | OP *newop = newGVOP(OP_GV, 0, |
2d8e6c8d | 5470 | gv_fetchpv(SvPVx(((SVOP*)kid)->op_sv, n_a), TRUE, |
85e6fe83 | 5471 | SVt_PVIO) ); |
79072805 LW |
5472 | op_free(kid); |
5473 | kid = newop; | |
5474 | } | |
1ea32a52 GS |
5475 | else if (kid->op_type == OP_READLINE) { |
5476 | /* neophyte patrol: open(<FH>), close(<FH>) etc. */ | |
5477 | bad_type(numargs, "HANDLE", PL_op_desc[o->op_type], kid); | |
5478 | } | |
79072805 | 5479 | else { |
35cd451c | 5480 | I32 flags = OPf_SPECIAL; |
a6c40364 | 5481 | I32 priv = 0; |
2c8ac474 GS |
5482 | PADOFFSET targ = 0; |
5483 | ||
35cd451c | 5484 | /* is this op a FH constructor? */ |
853846ea | 5485 | if (is_handle_constructor(o,numargs)) { |
2c8ac474 GS |
5486 | char *name = Nullch; |
5487 | STRLEN len; | |
5488 | ||
5489 | flags = 0; | |
5490 | /* Set a flag to tell rv2gv to vivify | |
853846ea NIS |
5491 | * need to "prove" flag does not mean something |
5492 | * else already - NI-S 1999/05/07 | |
2c8ac474 GS |
5493 | */ |
5494 | priv = OPpDEREF; | |
5495 | if (kid->op_type == OP_PADSV) { | |
5496 | SV **namep = av_fetch(PL_comppad_name, | |
5497 | kid->op_targ, 4); | |
5498 | if (namep && *namep) | |
5499 | name = SvPV(*namep, len); | |
5500 | } | |
5501 | else if (kid->op_type == OP_RV2SV | |
5502 | && kUNOP->op_first->op_type == OP_GV) | |
5503 | { | |
5504 | GV *gv = cGVOPx_gv(kUNOP->op_first); | |
5505 | name = GvNAME(gv); | |
5506 | len = GvNAMELEN(gv); | |
5507 | } | |
5508 | if (name) { | |
5509 | SV *namesv; | |
5510 | targ = pad_alloc(OP_RV2GV, SVs_PADTMP); | |
5511 | namesv = PL_curpad[targ]; | |
155aba94 | 5512 | (void)SvUPGRADE(namesv, SVt_PV); |
2c8ac474 GS |
5513 | if (*name != '$') |
5514 | sv_setpvn(namesv, "$", 1); | |
5515 | sv_catpvn(namesv, name, len); | |
5516 | } | |
853846ea | 5517 | } |
79072805 | 5518 | kid->op_sibling = 0; |
35cd451c | 5519 | kid = newUNOP(OP_RV2GV, flags, scalar(kid)); |
2c8ac474 GS |
5520 | kid->op_targ = targ; |
5521 | kid->op_private |= priv; | |
79072805 LW |
5522 | } |
5523 | kid->op_sibling = sibl; | |
5524 | *tokid = kid; | |
5525 | } | |
5526 | scalar(kid); | |
5527 | break; | |
5528 | case OA_SCALARREF: | |
a0d0e21e | 5529 | mod(scalar(kid), type); |
79072805 LW |
5530 | break; |
5531 | } | |
5532 | oa >>= 4; | |
5533 | tokid = &kid->op_sibling; | |
5534 | kid = kid->op_sibling; | |
5535 | } | |
11343788 | 5536 | o->op_private |= numargs; |
79072805 | 5537 | if (kid) |
22c35a8c | 5538 | return too_many_arguments(o,PL_op_desc[o->op_type]); |
11343788 | 5539 | listkids(o); |
79072805 | 5540 | } |
22c35a8c | 5541 | else if (PL_opargs[type] & OA_DEFGV) { |
11343788 | 5542 | op_free(o); |
54b9620d | 5543 | return newUNOP(type, 0, newDEFSVOP()); |
a0d0e21e LW |
5544 | } |
5545 | ||
79072805 LW |
5546 | if (oa) { |
5547 | while (oa & OA_OPTIONAL) | |
5548 | oa >>= 4; | |
5549 | if (oa && oa != OA_LIST) | |
22c35a8c | 5550 | return too_few_arguments(o,PL_op_desc[o->op_type]); |
79072805 | 5551 | } |
11343788 | 5552 | return o; |
79072805 LW |
5553 | } |
5554 | ||
5555 | OP * | |
cea2e8a9 | 5556 | Perl_ck_glob(pTHX_ OP *o) |
79072805 | 5557 | { |
fb73857a | 5558 | GV *gv; |
5559 | ||
649da076 | 5560 | o = ck_fun(o); |
1f2bfc8a | 5561 | if ((o->op_flags & OPf_KIDS) && !cLISTOPo->op_first->op_sibling) |
54b9620d | 5562 | append_elem(OP_GLOB, o, newDEFSVOP()); |
fb73857a | 5563 | |
5564 | if (!((gv = gv_fetchpv("glob", FALSE, SVt_PVCV)) && GvIMPORTED_CV(gv))) | |
5565 | gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); | |
b1cb66bf | 5566 | |
52bb0670 | 5567 | #if !defined(PERL_EXTERNAL_GLOB) |
72b16652 GS |
5568 | /* XXX this can be tightened up and made more failsafe. */ |
5569 | if (!gv) { | |
72b16652 | 5570 | ENTER; |
e4783991 GS |
5571 | Perl_load_module(aTHX_ 0, newSVpvn("File::Glob", 10), Nullsv, |
5572 | /* null-terminated import list */ | |
5573 | newSVpvn(":globally", 9), Nullsv); | |
72b16652 GS |
5574 | gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); |
5575 | LEAVE; | |
5576 | } | |
52bb0670 | 5577 | #endif /* PERL_EXTERNAL_GLOB */ |
72b16652 | 5578 | |
b1cb66bf | 5579 | if (gv && GvIMPORTED_CV(gv)) { |
5196be3e | 5580 | append_elem(OP_GLOB, o, |
80252599 | 5581 | newSVOP(OP_CONST, 0, newSViv(PL_glob_index++))); |
1f2bfc8a | 5582 | o->op_type = OP_LIST; |
22c35a8c | 5583 | o->op_ppaddr = PL_ppaddr[OP_LIST]; |
1f2bfc8a | 5584 | cLISTOPo->op_first->op_type = OP_PUSHMARK; |
22c35a8c | 5585 | cLISTOPo->op_first->op_ppaddr = PL_ppaddr[OP_PUSHMARK]; |
1f2bfc8a | 5586 | o = newUNOP(OP_ENTERSUB, OPf_STACKED, |
aeea060c | 5587 | append_elem(OP_LIST, o, |
1f2bfc8a MB |
5588 | scalar(newUNOP(OP_RV2CV, 0, |
5589 | newGVOP(OP_GV, 0, gv))))); | |
d58bf5aa MB |
5590 | o = newUNOP(OP_NULL, 0, ck_subr(o)); |
5591 | o->op_targ = OP_GLOB; /* hint at what it used to be */ | |
5592 | return o; | |
b1cb66bf | 5593 | } |
5594 | gv = newGVgen("main"); | |
a0d0e21e | 5595 | gv_IOadd(gv); |
11343788 MB |
5596 | append_elem(OP_GLOB, o, newGVOP(OP_GV, 0, gv)); |
5597 | scalarkids(o); | |
649da076 | 5598 | return o; |
79072805 LW |
5599 | } |
5600 | ||
5601 | OP * | |
cea2e8a9 | 5602 | Perl_ck_grep(pTHX_ OP *o) |
79072805 LW |
5603 | { |
5604 | LOGOP *gwop; | |
5605 | OP *kid; | |
11343788 | 5606 | OPCODE type = o->op_type == OP_GREPSTART ? OP_GREPWHILE : OP_MAPWHILE; |
79072805 | 5607 | |
22c35a8c | 5608 | o->op_ppaddr = PL_ppaddr[OP_GREPSTART]; |
b7dc083c | 5609 | NewOp(1101, gwop, 1, LOGOP); |
aeea060c | 5610 | |
11343788 | 5611 | if (o->op_flags & OPf_STACKED) { |
a0d0e21e | 5612 | OP* k; |
11343788 MB |
5613 | o = ck_sort(o); |
5614 | kid = cLISTOPo->op_first->op_sibling; | |
5615 | for (k = cLISTOPo->op_first->op_sibling->op_next; k; k = k->op_next) { | |
a0d0e21e LW |
5616 | kid = k; |
5617 | } | |
5618 | kid->op_next = (OP*)gwop; | |
11343788 | 5619 | o->op_flags &= ~OPf_STACKED; |
93a17b20 | 5620 | } |
11343788 | 5621 | kid = cLISTOPo->op_first->op_sibling; |
a0d0e21e LW |
5622 | if (type == OP_MAPWHILE) |
5623 | list(kid); | |
5624 | else | |
5625 | scalar(kid); | |
11343788 | 5626 | o = ck_fun(o); |
3280af22 | 5627 | if (PL_error_count) |
11343788 | 5628 | return o; |
aeea060c | 5629 | kid = cLISTOPo->op_first->op_sibling; |
79072805 | 5630 | if (kid->op_type != OP_NULL) |
cea2e8a9 | 5631 | Perl_croak(aTHX_ "panic: ck_grep"); |
79072805 LW |
5632 | kid = kUNOP->op_first; |
5633 | ||
a0d0e21e | 5634 | gwop->op_type = type; |
22c35a8c | 5635 | gwop->op_ppaddr = PL_ppaddr[type]; |
11343788 | 5636 | gwop->op_first = listkids(o); |
79072805 LW |
5637 | gwop->op_flags |= OPf_KIDS; |
5638 | gwop->op_private = 1; | |
5639 | gwop->op_other = LINKLIST(kid); | |
a0d0e21e | 5640 | gwop->op_targ = pad_alloc(type, SVs_PADTMP); |
79072805 LW |
5641 | kid->op_next = (OP*)gwop; |
5642 | ||
11343788 | 5643 | kid = cLISTOPo->op_first->op_sibling; |
a0d0e21e | 5644 | if (!kid || !kid->op_sibling) |
22c35a8c | 5645 | return too_few_arguments(o,PL_op_desc[o->op_type]); |
a0d0e21e LW |
5646 | for (kid = kid->op_sibling; kid; kid = kid->op_sibling) |
5647 | mod(kid, OP_GREPSTART); | |
5648 | ||
79072805 LW |
5649 | return (OP*)gwop; |
5650 | } | |
5651 | ||
5652 | OP * | |
cea2e8a9 | 5653 | Perl_ck_index(pTHX_ OP *o) |
79072805 | 5654 | { |
11343788 MB |
5655 | if (o->op_flags & OPf_KIDS) { |
5656 | OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
0b71040e LW |
5657 | if (kid) |
5658 | kid = kid->op_sibling; /* get past "big" */ | |
79072805 | 5659 | if (kid && kid->op_type == OP_CONST) |
2779dcf1 | 5660 | fbm_compile(((SVOP*)kid)->op_sv, 0); |
79072805 | 5661 | } |
11343788 | 5662 | return ck_fun(o); |
79072805 LW |
5663 | } |
5664 | ||
5665 | OP * | |
cea2e8a9 | 5666 | Perl_ck_lengthconst(pTHX_ OP *o) |
79072805 LW |
5667 | { |
5668 | /* XXX length optimization goes here */ | |
11343788 | 5669 | return ck_fun(o); |
79072805 LW |
5670 | } |
5671 | ||
5672 | OP * | |
cea2e8a9 | 5673 | Perl_ck_lfun(pTHX_ OP *o) |
79072805 | 5674 | { |
5dc0d613 MB |
5675 | OPCODE type = o->op_type; |
5676 | return modkids(ck_fun(o), type); | |
79072805 LW |
5677 | } |
5678 | ||
5679 | OP * | |
cea2e8a9 | 5680 | Perl_ck_defined(pTHX_ OP *o) /* 19990527 MJD */ |
69794302 | 5681 | { |
20ce7b12 | 5682 | dTHR; |
d0334bed GS |
5683 | if ((o->op_flags & OPf_KIDS) && ckWARN(WARN_DEPRECATED)) { |
5684 | switch (cUNOPo->op_first->op_type) { | |
5685 | case OP_RV2AV: | |
7e291ef1 | 5686 | break; /* Globals via GV can be undef */ |
d0334bed GS |
5687 | case OP_PADAV: |
5688 | case OP_AASSIGN: /* Is this a good idea? */ | |
5689 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
f10b0346 | 5690 | "defined(@array) is deprecated"); |
d0334bed GS |
5691 | Perl_warner(aTHX_ WARN_DEPRECATED, |
5692 | "(Maybe you should just omit the defined()?)\n"); | |
69794302 | 5693 | break; |
d0334bed | 5694 | case OP_RV2HV: |
7e291ef1 | 5695 | break; /* Globals via GV can be undef */ |
d0334bed GS |
5696 | case OP_PADHV: |
5697 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
894356b3 | 5698 | "defined(%%hash) is deprecated"); |
d0334bed GS |
5699 | Perl_warner(aTHX_ WARN_DEPRECATED, |
5700 | "(Maybe you should just omit the defined()?)\n"); | |
5701 | break; | |
5702 | default: | |
5703 | /* no warning */ | |
5704 | break; | |
5705 | } | |
69794302 MJD |
5706 | } |
5707 | return ck_rfun(o); | |
5708 | } | |
5709 | ||
5710 | OP * | |
cea2e8a9 | 5711 | Perl_ck_rfun(pTHX_ OP *o) |
8990e307 | 5712 | { |
5dc0d613 MB |
5713 | OPCODE type = o->op_type; |
5714 | return refkids(ck_fun(o), type); | |
8990e307 LW |
5715 | } |
5716 | ||
5717 | OP * | |
cea2e8a9 | 5718 | Perl_ck_listiob(pTHX_ OP *o) |
79072805 LW |
5719 | { |
5720 | register OP *kid; | |
aeea060c | 5721 | |
11343788 | 5722 | kid = cLISTOPo->op_first; |
79072805 | 5723 | if (!kid) { |
11343788 MB |
5724 | o = force_list(o); |
5725 | kid = cLISTOPo->op_first; | |
79072805 LW |
5726 | } |
5727 | if (kid->op_type == OP_PUSHMARK) | |
5728 | kid = kid->op_sibling; | |
11343788 | 5729 | if (kid && o->op_flags & OPf_STACKED) |
79072805 LW |
5730 | kid = kid->op_sibling; |
5731 | else if (kid && !kid->op_sibling) { /* print HANDLE; */ | |
5732 | if (kid->op_type == OP_CONST && kid->op_private & OPpCONST_BARE) { | |
11343788 | 5733 | o->op_flags |= OPf_STACKED; /* make it a filehandle */ |
748a9306 | 5734 | kid = newUNOP(OP_RV2GV, OPf_REF, scalar(kid)); |
11343788 MB |
5735 | cLISTOPo->op_first->op_sibling = kid; |
5736 | cLISTOPo->op_last = kid; | |
79072805 LW |
5737 | kid = kid->op_sibling; |
5738 | } | |
5739 | } | |
5740 | ||
5741 | if (!kid) | |
54b9620d | 5742 | append_elem(o->op_type, o, newDEFSVOP()); |
79072805 | 5743 | |
5dc0d613 | 5744 | o = listkids(o); |
bbce6d69 | 5745 | |
5dc0d613 | 5746 | o->op_private = 0; |
36477c24 | 5747 | #ifdef USE_LOCALE |
3280af22 | 5748 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5749 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5750 | #endif |
5751 | ||
5dc0d613 | 5752 | return o; |
bbce6d69 | 5753 | } |
5754 | ||
5755 | OP * | |
cea2e8a9 | 5756 | Perl_ck_fun_locale(pTHX_ OP *o) |
bbce6d69 | 5757 | { |
5dc0d613 | 5758 | o = ck_fun(o); |
bbce6d69 | 5759 | |
5dc0d613 | 5760 | o->op_private = 0; |
36477c24 | 5761 | #ifdef USE_LOCALE |
3280af22 | 5762 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5763 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5764 | #endif |
5765 | ||
5dc0d613 | 5766 | return o; |
bbce6d69 | 5767 | } |
5768 | ||
5769 | OP * | |
b162f9ea IZ |
5770 | Perl_ck_sassign(pTHX_ OP *o) |
5771 | { | |
5772 | OP *kid = cLISTOPo->op_first; | |
5773 | /* has a disposable target? */ | |
5774 | if ((PL_opargs[kid->op_type] & OA_TARGLEX) | |
6b66af17 GS |
5775 | && !(kid->op_flags & OPf_STACKED) |
5776 | /* Cannot steal the second time! */ | |
5777 | && !(kid->op_private & OPpTARGET_MY)) | |
b162f9ea IZ |
5778 | { |
5779 | OP *kkid = kid->op_sibling; | |
5780 | ||
5781 | /* Can just relocate the target. */ | |
2c2d71f5 JH |
5782 | if (kkid && kkid->op_type == OP_PADSV |
5783 | && !(kkid->op_private & OPpLVAL_INTRO)) | |
5784 | { | |
b162f9ea | 5785 | kid->op_targ = kkid->op_targ; |
743e66e6 | 5786 | kkid->op_targ = 0; |
b162f9ea IZ |
5787 | /* Now we do not need PADSV and SASSIGN. */ |
5788 | kid->op_sibling = o->op_sibling; /* NULL */ | |
5789 | cLISTOPo->op_first = NULL; | |
5790 | op_free(o); | |
5791 | op_free(kkid); | |
5792 | kid->op_private |= OPpTARGET_MY; /* Used for context settings */ | |
5793 | return kid; | |
5794 | } | |
5795 | } | |
5796 | return o; | |
5797 | } | |
5798 | ||
5799 | OP * | |
cea2e8a9 | 5800 | Perl_ck_scmp(pTHX_ OP *o) |
bbce6d69 | 5801 | { |
5dc0d613 | 5802 | o->op_private = 0; |
36477c24 | 5803 | #ifdef USE_LOCALE |
3280af22 | 5804 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5805 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5806 | #endif |
36477c24 | 5807 | |
5dc0d613 | 5808 | return o; |
79072805 LW |
5809 | } |
5810 | ||
5811 | OP * | |
cea2e8a9 | 5812 | Perl_ck_match(pTHX_ OP *o) |
79072805 | 5813 | { |
5dc0d613 | 5814 | o->op_private |= OPpRUNTIME; |
11343788 | 5815 | return o; |
79072805 LW |
5816 | } |
5817 | ||
5818 | OP * | |
f5d5a27c CS |
5819 | Perl_ck_method(pTHX_ OP *o) |
5820 | { | |
5821 | OP *kid = cUNOPo->op_first; | |
5822 | if (kid->op_type == OP_CONST) { | |
5823 | SV* sv = kSVOP->op_sv; | |
5824 | if (!(strchr(SvPVX(sv), ':') || strchr(SvPVX(sv), '\''))) { | |
5825 | OP *cmop; | |
155aba94 GS |
5826 | (void)SvUPGRADE(sv, SVt_PVIV); |
5827 | (void)SvIOK_on(sv); | |
f5d5a27c CS |
5828 | PERL_HASH(SvUVX(sv), SvPVX(sv), SvCUR(sv)); |
5829 | cmop = newSVOP(OP_METHOD_NAMED, 0, sv); | |
5830 | kSVOP->op_sv = Nullsv; | |
5831 | op_free(o); | |
5832 | return cmop; | |
5833 | } | |
5834 | } | |
5835 | return o; | |
5836 | } | |
5837 | ||
5838 | OP * | |
cea2e8a9 | 5839 | Perl_ck_null(pTHX_ OP *o) |
79072805 | 5840 | { |
11343788 | 5841 | return o; |
79072805 LW |
5842 | } |
5843 | ||
5844 | OP * | |
16fe6d59 GS |
5845 | Perl_ck_open(pTHX_ OP *o) |
5846 | { | |
5847 | HV *table = GvHV(PL_hintgv); | |
5848 | if (table) { | |
5849 | SV **svp; | |
5850 | I32 mode; | |
5851 | svp = hv_fetch(table, "open_IN", 7, FALSE); | |
5852 | if (svp && *svp) { | |
5853 | mode = mode_from_discipline(*svp); | |
5854 | if (mode & O_BINARY) | |
5855 | o->op_private |= OPpOPEN_IN_RAW; | |
5856 | else if (mode & O_TEXT) | |
5857 | o->op_private |= OPpOPEN_IN_CRLF; | |
5858 | } | |
5859 | ||
5860 | svp = hv_fetch(table, "open_OUT", 8, FALSE); | |
5861 | if (svp && *svp) { | |
5862 | mode = mode_from_discipline(*svp); | |
5863 | if (mode & O_BINARY) | |
5864 | o->op_private |= OPpOPEN_OUT_RAW; | |
5865 | else if (mode & O_TEXT) | |
5866 | o->op_private |= OPpOPEN_OUT_CRLF; | |
5867 | } | |
5868 | } | |
5869 | if (o->op_type == OP_BACKTICK) | |
5870 | return o; | |
5871 | return ck_fun(o); | |
5872 | } | |
5873 | ||
5874 | OP * | |
cea2e8a9 | 5875 | Perl_ck_repeat(pTHX_ OP *o) |
79072805 | 5876 | { |
11343788 MB |
5877 | if (cBINOPo->op_first->op_flags & OPf_PARENS) { |
5878 | o->op_private |= OPpREPEAT_DOLIST; | |
5879 | cBINOPo->op_first = force_list(cBINOPo->op_first); | |
79072805 LW |
5880 | } |
5881 | else | |
11343788 MB |
5882 | scalar(o); |
5883 | return o; | |
79072805 LW |
5884 | } |
5885 | ||
5886 | OP * | |
cea2e8a9 | 5887 | Perl_ck_require(pTHX_ OP *o) |
8990e307 | 5888 | { |
11343788 MB |
5889 | if (o->op_flags & OPf_KIDS) { /* Shall we supply missing .pm? */ |
5890 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
8990e307 LW |
5891 | |
5892 | if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { | |
8990e307 | 5893 | char *s; |
a0d0e21e LW |
5894 | for (s = SvPVX(kid->op_sv); *s; s++) { |
5895 | if (*s == ':' && s[1] == ':') { | |
5896 | *s = '/'; | |
1aef975c | 5897 | Move(s+2, s+1, strlen(s+2)+1, char); |
a0d0e21e LW |
5898 | --SvCUR(kid->op_sv); |
5899 | } | |
8990e307 | 5900 | } |
ce3b816e GS |
5901 | if (SvREADONLY(kid->op_sv)) { |
5902 | SvREADONLY_off(kid->op_sv); | |
5903 | sv_catpvn(kid->op_sv, ".pm", 3); | |
5904 | SvREADONLY_on(kid->op_sv); | |
5905 | } | |
5906 | else | |
5907 | sv_catpvn(kid->op_sv, ".pm", 3); | |
8990e307 LW |
5908 | } |
5909 | } | |
11343788 | 5910 | return ck_fun(o); |
8990e307 LW |
5911 | } |
5912 | ||
22c35a8c | 5913 | #if 0 |
8990e307 | 5914 | OP * |
cea2e8a9 | 5915 | Perl_ck_retarget(pTHX_ OP *o) |
79072805 | 5916 | { |
cea2e8a9 | 5917 | Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__); |
79072805 | 5918 | /* STUB */ |
11343788 | 5919 | return o; |
79072805 | 5920 | } |
22c35a8c | 5921 | #endif |
79072805 LW |
5922 | |
5923 | OP * | |
cea2e8a9 | 5924 | Perl_ck_select(pTHX_ OP *o) |
79072805 | 5925 | { |
c07a80fd | 5926 | OP* kid; |
11343788 MB |
5927 | if (o->op_flags & OPf_KIDS) { |
5928 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
2304df62 | 5929 | if (kid && kid->op_sibling) { |
11343788 | 5930 | o->op_type = OP_SSELECT; |
22c35a8c | 5931 | o->op_ppaddr = PL_ppaddr[OP_SSELECT]; |
11343788 MB |
5932 | o = ck_fun(o); |
5933 | return fold_constants(o); | |
79072805 LW |
5934 | } |
5935 | } | |
11343788 MB |
5936 | o = ck_fun(o); |
5937 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
c07a80fd | 5938 | if (kid && kid->op_type == OP_RV2GV) |
5939 | kid->op_private &= ~HINT_STRICT_REFS; | |
11343788 | 5940 | return o; |
79072805 LW |
5941 | } |
5942 | ||
5943 | OP * | |
cea2e8a9 | 5944 | Perl_ck_shift(pTHX_ OP *o) |
79072805 | 5945 | { |
11343788 | 5946 | I32 type = o->op_type; |
79072805 | 5947 | |
11343788 | 5948 | if (!(o->op_flags & OPf_KIDS)) { |
6d4ff0d2 MB |
5949 | OP *argop; |
5950 | ||
11343788 | 5951 | op_free(o); |
6d4ff0d2 | 5952 | #ifdef USE_THREADS |
533c011a | 5953 | if (!CvUNIQUE(PL_compcv)) { |
6d4ff0d2 | 5954 | argop = newOP(OP_PADAV, OPf_REF); |
6b88bc9c | 5955 | argop->op_targ = 0; /* PL_curpad[0] is @_ */ |
6d4ff0d2 MB |
5956 | } |
5957 | else { | |
5958 | argop = newUNOP(OP_RV2AV, 0, | |
5959 | scalar(newGVOP(OP_GV, 0, | |
5960 | gv_fetchpv("ARGV", TRUE, SVt_PVAV)))); | |
5961 | } | |
5962 | #else | |
5963 | argop = newUNOP(OP_RV2AV, 0, | |
3280af22 NIS |
5964 | scalar(newGVOP(OP_GV, 0, !CvUNIQUE(PL_compcv) ? |
5965 | PL_defgv : gv_fetchpv("ARGV", TRUE, SVt_PVAV)))); | |
6d4ff0d2 MB |
5966 | #endif /* USE_THREADS */ |
5967 | return newUNOP(type, 0, scalar(argop)); | |
79072805 | 5968 | } |
11343788 | 5969 | return scalar(modkids(ck_fun(o), type)); |
79072805 LW |
5970 | } |
5971 | ||
5972 | OP * | |
cea2e8a9 | 5973 | Perl_ck_sort(pTHX_ OP *o) |
79072805 | 5974 | { |
5dc0d613 | 5975 | o->op_private = 0; |
36477c24 | 5976 | #ifdef USE_LOCALE |
3280af22 | 5977 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5978 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5979 | #endif |
5980 | ||
9ea6e965 | 5981 | if (o->op_type == OP_SORT && o->op_flags & OPf_STACKED) |
51a19bc0 | 5982 | simplify_sort(o); |
9c007264 | 5983 | if (o->op_flags & OPf_STACKED) { /* may have been cleared */ |
11343788 | 5984 | OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
463ee0b2 | 5985 | OP *k; |
82092f1d | 5986 | kid = kUNOP->op_first; /* get past null */ |
79072805 | 5987 | |
463ee0b2 | 5988 | if (kid->op_type == OP_SCOPE || kid->op_type == OP_LEAVE) { |
79072805 | 5989 | linklist(kid); |
463ee0b2 LW |
5990 | if (kid->op_type == OP_SCOPE) { |
5991 | k = kid->op_next; | |
5992 | kid->op_next = 0; | |
79072805 | 5993 | } |
463ee0b2 | 5994 | else if (kid->op_type == OP_LEAVE) { |
11343788 | 5995 | if (o->op_type == OP_SORT) { |
748a9306 LW |
5996 | null(kid); /* wipe out leave */ |
5997 | kid->op_next = kid; | |
463ee0b2 | 5998 | |
748a9306 LW |
5999 | for (k = kLISTOP->op_first->op_next; k; k = k->op_next) { |
6000 | if (k->op_next == kid) | |
6001 | k->op_next = 0; | |
6002 | } | |
463ee0b2 | 6003 | } |
748a9306 LW |
6004 | else |
6005 | kid->op_next = 0; /* just disconnect the leave */ | |
a0d0e21e | 6006 | k = kLISTOP->op_first; |
463ee0b2 | 6007 | } |
a0d0e21e LW |
6008 | peep(k); |
6009 | ||
11343788 | 6010 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
11343788 | 6011 | if (o->op_type == OP_SORT) |
a0d0e21e LW |
6012 | kid->op_next = kid; |
6013 | else | |
6014 | kid->op_next = k; | |
11343788 | 6015 | o->op_flags |= OPf_SPECIAL; |
79072805 | 6016 | } |
c6e96bcb GS |
6017 | else if (kid->op_type == OP_RV2SV || kid->op_type == OP_PADSV) |
6018 | null(cLISTOPo->op_first->op_sibling); | |
79072805 | 6019 | } |
bbce6d69 | 6020 | |
11343788 | 6021 | return o; |
79072805 | 6022 | } |
bda4119b GS |
6023 | |
6024 | STATIC void | |
cea2e8a9 | 6025 | S_simplify_sort(pTHX_ OP *o) |
9c007264 | 6026 | { |
51a19bc0 | 6027 | dTHR; |
9c007264 JH |
6028 | register OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
6029 | OP *k; | |
6030 | int reversed; | |
350de78d | 6031 | GV *gv; |
9c007264 JH |
6032 | if (!(o->op_flags & OPf_STACKED)) |
6033 | return; | |
9ea6e965 GS |
6034 | GvMULTI_on(gv_fetchpv("a", TRUE, SVt_PV)); |
6035 | GvMULTI_on(gv_fetchpv("b", TRUE, SVt_PV)); | |
82092f1d | 6036 | kid = kUNOP->op_first; /* get past null */ |
9c007264 JH |
6037 | if (kid->op_type != OP_SCOPE) |
6038 | return; | |
6039 | kid = kLISTOP->op_last; /* get past scope */ | |
6040 | switch(kid->op_type) { | |
6041 | case OP_NCMP: | |
6042 | case OP_I_NCMP: | |
6043 | case OP_SCMP: | |
6044 | break; | |
6045 | default: | |
6046 | return; | |
6047 | } | |
6048 | k = kid; /* remember this node*/ | |
6049 | if (kBINOP->op_first->op_type != OP_RV2SV) | |
6050 | return; | |
6051 | kid = kBINOP->op_first; /* get past cmp */ | |
6052 | if (kUNOP->op_first->op_type != OP_GV) | |
6053 | return; | |
6054 | kid = kUNOP->op_first; /* get past rv2sv */ | |
638eceb6 | 6055 | gv = kGVOP_gv; |
350de78d | 6056 | if (GvSTASH(gv) != PL_curstash) |
9c007264 | 6057 | return; |
350de78d | 6058 | if (strEQ(GvNAME(gv), "a")) |
9c007264 | 6059 | reversed = 0; |
0f79a09d | 6060 | else if (strEQ(GvNAME(gv), "b")) |
9c007264 JH |
6061 | reversed = 1; |
6062 | else | |
6063 | return; | |
6064 | kid = k; /* back to cmp */ | |
6065 | if (kBINOP->op_last->op_type != OP_RV2SV) | |
6066 | return; | |
6067 | kid = kBINOP->op_last; /* down to 2nd arg */ | |
6068 | if (kUNOP->op_first->op_type != OP_GV) | |
6069 | return; | |
6070 | kid = kUNOP->op_first; /* get past rv2sv */ | |
638eceb6 | 6071 | gv = kGVOP_gv; |
350de78d | 6072 | if (GvSTASH(gv) != PL_curstash |
9c007264 | 6073 | || ( reversed |
350de78d GS |
6074 | ? strNE(GvNAME(gv), "a") |
6075 | : strNE(GvNAME(gv), "b"))) | |
9c007264 JH |
6076 | return; |
6077 | o->op_flags &= ~(OPf_STACKED | OPf_SPECIAL); | |
6078 | if (reversed) | |
6079 | o->op_private |= OPpSORT_REVERSE; | |
6080 | if (k->op_type == OP_NCMP) | |
6081 | o->op_private |= OPpSORT_NUMERIC; | |
6082 | if (k->op_type == OP_I_NCMP) | |
6083 | o->op_private |= OPpSORT_NUMERIC | OPpSORT_INTEGER; | |
e507f050 SM |
6084 | kid = cLISTOPo->op_first->op_sibling; |
6085 | cLISTOPo->op_first->op_sibling = kid->op_sibling; /* bypass old block */ | |
6086 | op_free(kid); /* then delete it */ | |
6087 | cLISTOPo->op_children--; | |
9c007264 | 6088 | } |
79072805 LW |
6089 | |
6090 | OP * | |
cea2e8a9 | 6091 | Perl_ck_split(pTHX_ OP *o) |
79072805 LW |
6092 | { |
6093 | register OP *kid; | |
aeea060c | 6094 | |
11343788 MB |
6095 | if (o->op_flags & OPf_STACKED) |
6096 | return no_fh_allowed(o); | |
79072805 | 6097 | |
11343788 | 6098 | kid = cLISTOPo->op_first; |
8990e307 | 6099 | if (kid->op_type != OP_NULL) |
cea2e8a9 | 6100 | Perl_croak(aTHX_ "panic: ck_split"); |
8990e307 | 6101 | kid = kid->op_sibling; |
11343788 MB |
6102 | op_free(cLISTOPo->op_first); |
6103 | cLISTOPo->op_first = kid; | |
85e6fe83 | 6104 | if (!kid) { |
79cb57f6 | 6105 | cLISTOPo->op_first = kid = newSVOP(OP_CONST, 0, newSVpvn(" ", 1)); |
11343788 | 6106 | cLISTOPo->op_last = kid; /* There was only one element previously */ |
85e6fe83 | 6107 | } |
79072805 LW |
6108 | |
6109 | if (kid->op_type != OP_MATCH) { | |
6110 | OP *sibl = kid->op_sibling; | |
463ee0b2 | 6111 | kid->op_sibling = 0; |
79072805 | 6112 | kid = pmruntime( newPMOP(OP_MATCH, OPf_SPECIAL), kid, Nullop); |
11343788 MB |
6113 | if (cLISTOPo->op_first == cLISTOPo->op_last) |
6114 | cLISTOPo->op_last = kid; | |
6115 | cLISTOPo->op_first = kid; | |
79072805 LW |
6116 | kid->op_sibling = sibl; |
6117 | } | |
6118 | ||
6119 | kid->op_type = OP_PUSHRE; | |
22c35a8c | 6120 | kid->op_ppaddr = PL_ppaddr[OP_PUSHRE]; |
79072805 LW |
6121 | scalar(kid); |
6122 | ||
6123 | if (!kid->op_sibling) | |
54b9620d | 6124 | append_elem(OP_SPLIT, o, newDEFSVOP()); |
79072805 LW |
6125 | |
6126 | kid = kid->op_sibling; | |
6127 | scalar(kid); | |
6128 | ||
6129 | if (!kid->op_sibling) | |
11343788 | 6130 | append_elem(OP_SPLIT, o, newSVOP(OP_CONST, 0, newSViv(0))); |
79072805 LW |
6131 | |
6132 | kid = kid->op_sibling; | |
6133 | scalar(kid); | |
6134 | ||
6135 | if (kid->op_sibling) | |
22c35a8c | 6136 | return too_many_arguments(o,PL_op_desc[o->op_type]); |
79072805 | 6137 | |
11343788 | 6138 | return o; |
79072805 LW |
6139 | } |
6140 | ||
6141 | OP * | |
eb6e2d6f GS |
6142 | Perl_ck_join(pTHX_ OP *o) |
6143 | { | |
6144 | if (ckWARN(WARN_SYNTAX)) { | |
6145 | OP *kid = cLISTOPo->op_first->op_sibling; | |
6146 | if (kid && kid->op_type == OP_MATCH) { | |
6147 | char *pmstr = "STRING"; | |
6148 | if (kPMOP->op_pmregexp) | |
6149 | pmstr = kPMOP->op_pmregexp->precomp; | |
6150 | Perl_warner(aTHX_ WARN_SYNTAX, | |
6151 | "/%s/ should probably be written as \"%s\"", | |
6152 | pmstr, pmstr); | |
6153 | } | |
6154 | } | |
6155 | return ck_fun(o); | |
6156 | } | |
6157 | ||
6158 | OP * | |
cea2e8a9 | 6159 | Perl_ck_subr(pTHX_ OP *o) |
79072805 | 6160 | { |
11343788 MB |
6161 | dTHR; |
6162 | OP *prev = ((cUNOPo->op_first->op_sibling) | |
6163 | ? cUNOPo : ((UNOP*)cUNOPo->op_first))->op_first; | |
6164 | OP *o2 = prev->op_sibling; | |
4633a7c4 LW |
6165 | OP *cvop; |
6166 | char *proto = 0; | |
6167 | CV *cv = 0; | |
46fc3d4c | 6168 | GV *namegv = 0; |
4633a7c4 LW |
6169 | int optional = 0; |
6170 | I32 arg = 0; | |
2d8e6c8d | 6171 | STRLEN n_a; |
4633a7c4 | 6172 | |
d3011074 | 6173 | o->op_private |= OPpENTERSUB_HASTARG; |
11343788 | 6174 | for (cvop = o2; cvop->op_sibling; cvop = cvop->op_sibling) ; |
4633a7c4 LW |
6175 | if (cvop->op_type == OP_RV2CV) { |
6176 | SVOP* tmpop; | |
11343788 | 6177 | o->op_private |= (cvop->op_private & OPpENTERSUB_AMPER); |
4633a7c4 LW |
6178 | null(cvop); /* disable rv2cv */ |
6179 | tmpop = (SVOP*)((UNOP*)cvop)->op_first; | |
76cd736e | 6180 | if (tmpop->op_type == OP_GV && !(o->op_private & OPpENTERSUB_AMPER)) { |
638eceb6 | 6181 | GV *gv = cGVOPx_gv(tmpop); |
350de78d | 6182 | cv = GvCVu(gv); |
76cd736e GS |
6183 | if (!cv) |
6184 | tmpop->op_private |= OPpEARLY_CV; | |
6185 | else if (SvPOK(cv)) { | |
350de78d | 6186 | namegv = CvANON(cv) ? gv : CvGV(cv); |
2d8e6c8d | 6187 | proto = SvPV((SV*)cv, n_a); |
46fc3d4c | 6188 | } |
4633a7c4 LW |
6189 | } |
6190 | } | |
f5d5a27c | 6191 | else if (cvop->op_type == OP_METHOD || cvop->op_type == OP_METHOD_NAMED) { |
7a52d87a GS |
6192 | if (o2->op_type == OP_CONST) |
6193 | o2->op_private &= ~OPpCONST_STRICT; | |
58a40671 GS |
6194 | else if (o2->op_type == OP_LIST) { |
6195 | OP *o = ((UNOP*)o2)->op_first->op_sibling; | |
6196 | if (o && o->op_type == OP_CONST) | |
6197 | o->op_private &= ~OPpCONST_STRICT; | |
6198 | } | |
7a52d87a | 6199 | } |
3280af22 NIS |
6200 | o->op_private |= (PL_hints & HINT_STRICT_REFS); |
6201 | if (PERLDB_SUB && PL_curstash != PL_debstash) | |
11343788 MB |
6202 | o->op_private |= OPpENTERSUB_DB; |
6203 | while (o2 != cvop) { | |
4633a7c4 LW |
6204 | if (proto) { |
6205 | switch (*proto) { | |
6206 | case '\0': | |
5dc0d613 | 6207 | return too_many_arguments(o, gv_ename(namegv)); |
4633a7c4 LW |
6208 | case ';': |
6209 | optional = 1; | |
6210 | proto++; | |
6211 | continue; | |
6212 | case '$': | |
6213 | proto++; | |
6214 | arg++; | |
11343788 | 6215 | scalar(o2); |
4633a7c4 LW |
6216 | break; |
6217 | case '%': | |
6218 | case '@': | |
11343788 | 6219 | list(o2); |
4633a7c4 LW |
6220 | arg++; |
6221 | break; | |
6222 | case '&': | |
6223 | proto++; | |
6224 | arg++; | |
11343788 | 6225 | if (o2->op_type != OP_REFGEN && o2->op_type != OP_UNDEF) |
5dc0d613 | 6226 | bad_type(arg, "block", gv_ename(namegv), o2); |
4633a7c4 LW |
6227 | break; |
6228 | case '*': | |
2ba6ecf4 | 6229 | /* '*' allows any scalar type, including bareword */ |
4633a7c4 LW |
6230 | proto++; |
6231 | arg++; | |
11343788 | 6232 | if (o2->op_type == OP_RV2GV) |
2ba6ecf4 | 6233 | goto wrapref; /* autoconvert GLOB -> GLOBref */ |
7a52d87a GS |
6234 | else if (o2->op_type == OP_CONST) |
6235 | o2->op_private &= ~OPpCONST_STRICT; | |
9675f7ac GS |
6236 | else if (o2->op_type == OP_ENTERSUB) { |
6237 | /* accidental subroutine, revert to bareword */ | |
6238 | OP *gvop = ((UNOP*)o2)->op_first; | |
6239 | if (gvop && gvop->op_type == OP_NULL) { | |
6240 | gvop = ((UNOP*)gvop)->op_first; | |
6241 | if (gvop) { | |
6242 | for (; gvop->op_sibling; gvop = gvop->op_sibling) | |
6243 | ; | |
6244 | if (gvop && | |
6245 | (gvop->op_private & OPpENTERSUB_NOPAREN) && | |
6246 | (gvop = ((UNOP*)gvop)->op_first) && | |
6247 | gvop->op_type == OP_GV) | |
6248 | { | |
638eceb6 | 6249 | GV *gv = cGVOPx_gv(gvop); |
9675f7ac | 6250 | OP *sibling = o2->op_sibling; |
2692f720 | 6251 | SV *n = newSVpvn("",0); |
9675f7ac | 6252 | op_free(o2); |
2692f720 GS |
6253 | gv_fullname3(n, gv, ""); |
6254 | if (SvCUR(n)>6 && strnEQ(SvPVX(n),"main::",6)) | |
6255 | sv_chop(n, SvPVX(n)+6); | |
6256 | o2 = newSVOP(OP_CONST, 0, n); | |
9675f7ac GS |
6257 | prev->op_sibling = o2; |
6258 | o2->op_sibling = sibling; | |
6259 | } | |
6260 | } | |
6261 | } | |
6262 | } | |
2ba6ecf4 GS |
6263 | scalar(o2); |
6264 | break; | |
4633a7c4 LW |
6265 | case '\\': |
6266 | proto++; | |
6267 | arg++; | |
6268 | switch (*proto++) { | |
6269 | case '*': | |
11343788 | 6270 | if (o2->op_type != OP_RV2GV) |
5dc0d613 | 6271 | bad_type(arg, "symbol", gv_ename(namegv), o2); |
4633a7c4 LW |
6272 | goto wrapref; |
6273 | case '&': | |
11343788 | 6274 | if (o2->op_type != OP_RV2CV) |
5dc0d613 | 6275 | bad_type(arg, "sub", gv_ename(namegv), o2); |
4633a7c4 LW |
6276 | goto wrapref; |
6277 | case '$': | |
386acf99 GS |
6278 | if (o2->op_type != OP_RV2SV |
6279 | && o2->op_type != OP_PADSV | |
1c01eb51 GS |
6280 | && o2->op_type != OP_HELEM |
6281 | && o2->op_type != OP_AELEM | |
386acf99 GS |
6282 | && o2->op_type != OP_THREADSV) |
6283 | { | |
5dc0d613 | 6284 | bad_type(arg, "scalar", gv_ename(namegv), o2); |
386acf99 | 6285 | } |
4633a7c4 LW |
6286 | goto wrapref; |
6287 | case '@': | |
11343788 | 6288 | if (o2->op_type != OP_RV2AV && o2->op_type != OP_PADAV) |
5dc0d613 | 6289 | bad_type(arg, "array", gv_ename(namegv), o2); |
4633a7c4 LW |
6290 | goto wrapref; |
6291 | case '%': | |
11343788 | 6292 | if (o2->op_type != OP_RV2HV && o2->op_type != OP_PADHV) |
5dc0d613 | 6293 | bad_type(arg, "hash", gv_ename(namegv), o2); |
4633a7c4 LW |
6294 | wrapref: |
6295 | { | |
11343788 | 6296 | OP* kid = o2; |
6fa846a0 | 6297 | OP* sib = kid->op_sibling; |
4633a7c4 | 6298 | kid->op_sibling = 0; |
6fa846a0 GS |
6299 | o2 = newUNOP(OP_REFGEN, 0, kid); |
6300 | o2->op_sibling = sib; | |
e858de61 | 6301 | prev->op_sibling = o2; |
4633a7c4 LW |
6302 | } |
6303 | break; | |
6304 | default: goto oops; | |
6305 | } | |
6306 | break; | |
b1cb66bf | 6307 | case ' ': |
6308 | proto++; | |
6309 | continue; | |
4633a7c4 LW |
6310 | default: |
6311 | oops: | |
cea2e8a9 | 6312 | Perl_croak(aTHX_ "Malformed prototype for %s: %s", |
2d8e6c8d | 6313 | gv_ename(namegv), SvPV((SV*)cv, n_a)); |
4633a7c4 LW |
6314 | } |
6315 | } | |
6316 | else | |
11343788 MB |
6317 | list(o2); |
6318 | mod(o2, OP_ENTERSUB); | |
6319 | prev = o2; | |
6320 | o2 = o2->op_sibling; | |
4633a7c4 | 6321 | } |
fb73857a | 6322 | if (proto && !optional && |
6323 | (*proto && *proto != '@' && *proto != '%' && *proto != ';')) | |
5dc0d613 | 6324 | return too_few_arguments(o, gv_ename(namegv)); |
11343788 | 6325 | return o; |
79072805 LW |
6326 | } |
6327 | ||
6328 | OP * | |
cea2e8a9 | 6329 | Perl_ck_svconst(pTHX_ OP *o) |
8990e307 | 6330 | { |
11343788 MB |
6331 | SvREADONLY_on(cSVOPo->op_sv); |
6332 | return o; | |
8990e307 LW |
6333 | } |
6334 | ||
6335 | OP * | |
cea2e8a9 | 6336 | Perl_ck_trunc(pTHX_ OP *o) |
79072805 | 6337 | { |
11343788 MB |
6338 | if (o->op_flags & OPf_KIDS) { |
6339 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
79072805 | 6340 | |
a0d0e21e LW |
6341 | if (kid->op_type == OP_NULL) |
6342 | kid = (SVOP*)kid->op_sibling; | |
bb53490d GS |
6343 | if (kid && kid->op_type == OP_CONST && |
6344 | (kid->op_private & OPpCONST_BARE)) | |
6345 | { | |
11343788 | 6346 | o->op_flags |= OPf_SPECIAL; |
bb53490d GS |
6347 | kid->op_private &= ~OPpCONST_STRICT; |
6348 | } | |
79072805 | 6349 | } |
11343788 | 6350 | return ck_fun(o); |
79072805 LW |
6351 | } |
6352 | ||
463ee0b2 LW |
6353 | /* A peephole optimizer. We visit the ops in the order they're to execute. */ |
6354 | ||
79072805 | 6355 | void |
864dbfa3 | 6356 | Perl_peep(pTHX_ register OP *o) |
79072805 | 6357 | { |
11343788 | 6358 | dTHR; |
79072805 | 6359 | register OP* oldop = 0; |
2d8e6c8d | 6360 | STRLEN n_a; |
cd06dffe | 6361 | OP *last_composite = Nullop; |
2d8e6c8d | 6362 | |
a0d0e21e | 6363 | if (!o || o->op_seq) |
79072805 | 6364 | return; |
a0d0e21e | 6365 | ENTER; |
462e5cf6 | 6366 | SAVEOP(); |
7766f137 | 6367 | SAVEVPTR(PL_curcop); |
a0d0e21e LW |
6368 | for (; o; o = o->op_next) { |
6369 | if (o->op_seq) | |
6370 | break; | |
3280af22 NIS |
6371 | if (!PL_op_seqmax) |
6372 | PL_op_seqmax++; | |
533c011a | 6373 | PL_op = o; |
a0d0e21e | 6374 | switch (o->op_type) { |
acb36ea4 | 6375 | case OP_SETSTATE: |
a0d0e21e LW |
6376 | case OP_NEXTSTATE: |
6377 | case OP_DBSTATE: | |
3280af22 NIS |
6378 | PL_curcop = ((COP*)o); /* for warnings */ |
6379 | o->op_seq = PL_op_seqmax++; | |
cd06dffe | 6380 | last_composite = Nullop; |
a0d0e21e LW |
6381 | break; |
6382 | ||
a0d0e21e | 6383 | case OP_CONST: |
7a52d87a GS |
6384 | if (cSVOPo->op_private & OPpCONST_STRICT) |
6385 | no_bareword_allowed(o); | |
7766f137 GS |
6386 | #ifdef USE_ITHREADS |
6387 | /* Relocate sv to the pad for thread safety. | |
6388 | * Despite being a "constant", the SV is written to, | |
6389 | * for reference counts, sv_upgrade() etc. */ | |
6390 | if (cSVOP->op_sv) { | |
6391 | PADOFFSET ix = pad_alloc(OP_CONST, SVs_PADTMP); | |
6392 | SvREFCNT_dec(PL_curpad[ix]); | |
6393 | SvPADTMP_on(cSVOPo->op_sv); | |
6394 | PL_curpad[ix] = cSVOPo->op_sv; | |
6395 | cSVOPo->op_sv = Nullsv; | |
6396 | o->op_targ = ix; | |
6397 | } | |
6398 | #endif | |
07447971 GS |
6399 | o->op_seq = PL_op_seqmax++; |
6400 | break; | |
6401 | ||
ed7ab888 | 6402 | case OP_CONCAT: |
b162f9ea IZ |
6403 | if (o->op_next && o->op_next->op_type == OP_STRINGIFY) { |
6404 | if (o->op_next->op_private & OPpTARGET_MY) { | |
69b47968 | 6405 | if (o->op_flags & OPf_STACKED) /* chained concats */ |
b162f9ea | 6406 | goto ignore_optimization; |
cd06dffe | 6407 | else { |
07447971 | 6408 | /* assert(PL_opargs[o->op_type] & OA_TARGLEX); */ |
b162f9ea | 6409 | o->op_targ = o->op_next->op_targ; |
743e66e6 | 6410 | o->op_next->op_targ = 0; |
2c2d71f5 | 6411 | o->op_private |= OPpTARGET_MY; |
b162f9ea IZ |
6412 | } |
6413 | } | |
a0d0e21e | 6414 | null(o->op_next); |
b162f9ea IZ |
6415 | } |
6416 | ignore_optimization: | |
3280af22 | 6417 | o->op_seq = PL_op_seqmax++; |
a0d0e21e | 6418 | break; |
8990e307 | 6419 | case OP_STUB: |
54310121 | 6420 | if ((o->op_flags & OPf_WANT) != OPf_WANT_LIST) { |
3280af22 | 6421 | o->op_seq = PL_op_seqmax++; |
54310121 | 6422 | break; /* Scalar stub must produce undef. List stub is noop */ |
8990e307 | 6423 | } |
748a9306 | 6424 | goto nothin; |
79072805 | 6425 | case OP_NULL: |
acb36ea4 GS |
6426 | if (o->op_targ == OP_NEXTSTATE |
6427 | || o->op_targ == OP_DBSTATE | |
6428 | || o->op_targ == OP_SETSTATE) | |
6429 | { | |
3280af22 | 6430 | PL_curcop = ((COP*)o); |
acb36ea4 | 6431 | } |
748a9306 | 6432 | goto nothin; |
79072805 | 6433 | case OP_SCALAR: |
93a17b20 | 6434 | case OP_LINESEQ: |
463ee0b2 | 6435 | case OP_SCOPE: |
748a9306 | 6436 | nothin: |
a0d0e21e LW |
6437 | if (oldop && o->op_next) { |
6438 | oldop->op_next = o->op_next; | |
79072805 LW |
6439 | continue; |
6440 | } | |
3280af22 | 6441 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6442 | break; |
6443 | ||
6444 | case OP_GV: | |
a0d0e21e | 6445 | if (o->op_next->op_type == OP_RV2SV) { |
64aac5a9 | 6446 | if (!(o->op_next->op_private & OPpDEREF)) { |
ef8040b0 | 6447 | null(o->op_next); |
64aac5a9 GS |
6448 | o->op_private |= o->op_next->op_private & (OPpLVAL_INTRO |
6449 | | OPpOUR_INTRO); | |
a0d0e21e LW |
6450 | o->op_next = o->op_next->op_next; |
6451 | o->op_type = OP_GVSV; | |
22c35a8c | 6452 | o->op_ppaddr = PL_ppaddr[OP_GVSV]; |
8990e307 LW |
6453 | } |
6454 | } | |
a0d0e21e LW |
6455 | else if (o->op_next->op_type == OP_RV2AV) { |
6456 | OP* pop = o->op_next->op_next; | |
6457 | IV i; | |
8990e307 | 6458 | if (pop->op_type == OP_CONST && |
533c011a | 6459 | (PL_op = pop->op_next) && |
8990e307 | 6460 | pop->op_next->op_type == OP_AELEM && |
a0d0e21e | 6461 | !(pop->op_next->op_private & |
68dc0745 | 6462 | (OPpLVAL_INTRO|OPpLVAL_DEFER|OPpDEREF)) && |
3280af22 | 6463 | (i = SvIV(((SVOP*)pop)->op_sv) - PL_compiling.cop_arybase) |
a0d0e21e | 6464 | <= 255 && |
8990e307 LW |
6465 | i >= 0) |
6466 | { | |
350de78d | 6467 | GV *gv; |
a0d0e21e | 6468 | null(o->op_next); |
8990e307 LW |
6469 | null(pop->op_next); |
6470 | null(pop); | |
a0d0e21e LW |
6471 | o->op_flags |= pop->op_next->op_flags & OPf_MOD; |
6472 | o->op_next = pop->op_next->op_next; | |
6473 | o->op_type = OP_AELEMFAST; | |
22c35a8c | 6474 | o->op_ppaddr = PL_ppaddr[OP_AELEMFAST]; |
a0d0e21e | 6475 | o->op_private = (U8)i; |
638eceb6 | 6476 | gv = cGVOPo_gv; |
350de78d | 6477 | GvAVn(gv); |
8990e307 | 6478 | } |
79072805 | 6479 | } |
e476b1b5 | 6480 | else if ((o->op_private & OPpEARLY_CV) && ckWARN(WARN_PROTOTYPE)) { |
638eceb6 | 6481 | GV *gv = cGVOPo_gv; |
76cd736e GS |
6482 | if (SvTYPE(gv) == SVt_PVGV && GvCV(gv) && SvPVX(GvCV(gv))) { |
6483 | /* XXX could check prototype here instead of just carping */ | |
6484 | SV *sv = sv_newmortal(); | |
6485 | gv_efullname3(sv, gv, Nullch); | |
e476b1b5 | 6486 | Perl_warner(aTHX_ WARN_PROTOTYPE, |
76cd736e GS |
6487 | "%s() called too early to check prototype", |
6488 | SvPV_nolen(sv)); | |
6489 | } | |
6490 | } | |
6491 | ||
3280af22 | 6492 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6493 | break; |
6494 | ||
a0d0e21e | 6495 | case OP_MAPWHILE: |
79072805 LW |
6496 | case OP_GREPWHILE: |
6497 | case OP_AND: | |
6498 | case OP_OR: | |
2c2d71f5 JH |
6499 | case OP_ANDASSIGN: |
6500 | case OP_ORASSIGN: | |
1a67a97c SM |
6501 | case OP_COND_EXPR: |
6502 | case OP_RANGE: | |
3280af22 | 6503 | o->op_seq = PL_op_seqmax++; |
fd4d1407 IZ |
6504 | while (cLOGOP->op_other->op_type == OP_NULL) |
6505 | cLOGOP->op_other = cLOGOP->op_other->op_next; | |
79072805 LW |
6506 | peep(cLOGOP->op_other); |
6507 | break; | |
6508 | ||
79072805 | 6509 | case OP_ENTERLOOP: |
3280af22 | 6510 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6511 | peep(cLOOP->op_redoop); |
6512 | peep(cLOOP->op_nextop); | |
6513 | peep(cLOOP->op_lastop); | |
6514 | break; | |
6515 | ||
8782bef2 | 6516 | case OP_QR: |
79072805 LW |
6517 | case OP_MATCH: |
6518 | case OP_SUBST: | |
3280af22 | 6519 | o->op_seq = PL_op_seqmax++; |
a0d0e21e | 6520 | peep(cPMOP->op_pmreplstart); |
79072805 LW |
6521 | break; |
6522 | ||
a0d0e21e | 6523 | case OP_EXEC: |
3280af22 | 6524 | o->op_seq = PL_op_seqmax++; |
599cee73 PM |
6525 | if (ckWARN(WARN_SYNTAX) && o->op_next |
6526 | && o->op_next->op_type == OP_NEXTSTATE) { | |
a0d0e21e | 6527 | if (o->op_next->op_sibling && |
20408e3c GS |
6528 | o->op_next->op_sibling->op_type != OP_EXIT && |
6529 | o->op_next->op_sibling->op_type != OP_WARN && | |
a0d0e21e | 6530 | o->op_next->op_sibling->op_type != OP_DIE) { |
57843af0 | 6531 | line_t oldline = CopLINE(PL_curcop); |
a0d0e21e | 6532 | |
57843af0 | 6533 | CopLINE_set(PL_curcop, CopLINE((COP*)o->op_next)); |
eeb6a2c9 GS |
6534 | Perl_warner(aTHX_ WARN_EXEC, |
6535 | "Statement unlikely to be reached"); | |
6536 | Perl_warner(aTHX_ WARN_EXEC, | |
6537 | "(Maybe you meant system() when you said exec()?)\n"); | |
57843af0 | 6538 | CopLINE_set(PL_curcop, oldline); |
a0d0e21e LW |
6539 | } |
6540 | } | |
6541 | break; | |
aeea060c | 6542 | |
c750a3ec MB |
6543 | case OP_HELEM: { |
6544 | UNOP *rop; | |
6545 | SV *lexname; | |
6546 | GV **fields; | |
9615e741 | 6547 | SV **svp, **indsvp, *sv; |
c750a3ec MB |
6548 | I32 ind; |
6549 | char *key; | |
6550 | STRLEN keylen; | |
aeea060c | 6551 | |
9615e741 | 6552 | o->op_seq = PL_op_seqmax++; |
377b21bb | 6553 | if ((o->op_private & (OPpLVAL_INTRO)) |
c750a3ec MB |
6554 | || ((BINOP*)o)->op_last->op_type != OP_CONST) |
6555 | break; | |
6556 | rop = (UNOP*)((BINOP*)o)->op_first; | |
6557 | if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV) | |
6558 | break; | |
3280af22 | 6559 | lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE); |
c750a3ec MB |
6560 | if (!SvOBJECT(lexname)) |
6561 | break; | |
5196be3e | 6562 | fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); |
c750a3ec MB |
6563 | if (!fields || !GvHV(*fields)) |
6564 | break; | |
638eceb6 | 6565 | svp = cSVOPx_svp(((BINOP*)o)->op_last); |
c750a3ec MB |
6566 | key = SvPV(*svp, keylen); |
6567 | indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE); | |
6568 | if (!indsvp) { | |
88e9b055 | 6569 | Perl_croak(aTHX_ "No such pseudo-hash field \"%s\" in variable %s of type %s", |
2d8e6c8d | 6570 | key, SvPV(lexname, n_a), HvNAME(SvSTASH(lexname))); |
c750a3ec MB |
6571 | } |
6572 | ind = SvIV(*indsvp); | |
6573 | if (ind < 1) | |
cea2e8a9 | 6574 | Perl_croak(aTHX_ "Bad index while coercing array into hash"); |
c750a3ec | 6575 | rop->op_type = OP_RV2AV; |
22c35a8c | 6576 | rop->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
c750a3ec | 6577 | o->op_type = OP_AELEM; |
22c35a8c | 6578 | o->op_ppaddr = PL_ppaddr[OP_AELEM]; |
9615e741 GS |
6579 | sv = newSViv(ind); |
6580 | if (SvREADONLY(*svp)) | |
6581 | SvREADONLY_on(sv); | |
6582 | SvFLAGS(sv) |= (SvFLAGS(*svp) | |
6583 | & (SVs_PADBUSY|SVs_PADTMP|SVs_PADMY)); | |
c750a3ec | 6584 | SvREFCNT_dec(*svp); |
9615e741 | 6585 | *svp = sv; |
c750a3ec MB |
6586 | break; |
6587 | } | |
345599ca GS |
6588 | |
6589 | case OP_HSLICE: { | |
6590 | UNOP *rop; | |
6591 | SV *lexname; | |
6592 | GV **fields; | |
9615e741 | 6593 | SV **svp, **indsvp, *sv; |
345599ca GS |
6594 | I32 ind; |
6595 | char *key; | |
6596 | STRLEN keylen; | |
6597 | SVOP *first_key_op, *key_op; | |
9615e741 GS |
6598 | |
6599 | o->op_seq = PL_op_seqmax++; | |
345599ca GS |
6600 | if ((o->op_private & (OPpLVAL_INTRO)) |
6601 | /* I bet there's always a pushmark... */ | |
6602 | || ((LISTOP*)o)->op_first->op_sibling->op_type != OP_LIST) | |
6603 | /* hmmm, no optimization if list contains only one key. */ | |
6604 | break; | |
6605 | rop = (UNOP*)((LISTOP*)o)->op_last; | |
6606 | if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV) | |
6607 | break; | |
6608 | lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE); | |
6609 | if (!SvOBJECT(lexname)) | |
6610 | break; | |
6611 | fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); | |
6612 | if (!fields || !GvHV(*fields)) | |
6613 | break; | |
6614 | /* Again guessing that the pushmark can be jumped over.... */ | |
6615 | first_key_op = (SVOP*)((LISTOP*)((LISTOP*)o)->op_first->op_sibling) | |
6616 | ->op_first->op_sibling; | |
6617 | /* Check that the key list contains only constants. */ | |
6618 | for (key_op = first_key_op; key_op; | |
6619 | key_op = (SVOP*)key_op->op_sibling) | |
6620 | if (key_op->op_type != OP_CONST) | |
6621 | break; | |
6622 | if (key_op) | |
6623 | break; | |
6624 | rop->op_type = OP_RV2AV; | |
6625 | rop->op_ppaddr = PL_ppaddr[OP_RV2AV]; | |
6626 | o->op_type = OP_ASLICE; | |
6627 | o->op_ppaddr = PL_ppaddr[OP_ASLICE]; | |
6628 | for (key_op = first_key_op; key_op; | |
6629 | key_op = (SVOP*)key_op->op_sibling) { | |
6630 | svp = cSVOPx_svp(key_op); | |
6631 | key = SvPV(*svp, keylen); | |
6632 | indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE); | |
6633 | if (!indsvp) { | |
9615e741 GS |
6634 | Perl_croak(aTHX_ "No such pseudo-hash field \"%s\" " |
6635 | "in variable %s of type %s", | |
345599ca GS |
6636 | key, SvPV(lexname, n_a), HvNAME(SvSTASH(lexname))); |
6637 | } | |
6638 | ind = SvIV(*indsvp); | |
6639 | if (ind < 1) | |
6640 | Perl_croak(aTHX_ "Bad index while coercing array into hash"); | |
9615e741 GS |
6641 | sv = newSViv(ind); |
6642 | if (SvREADONLY(*svp)) | |
6643 | SvREADONLY_on(sv); | |
6644 | SvFLAGS(sv) |= (SvFLAGS(*svp) | |
6645 | & (SVs_PADBUSY|SVs_PADTMP|SVs_PADMY)); | |
345599ca | 6646 | SvREFCNT_dec(*svp); |
9615e741 | 6647 | *svp = sv; |
345599ca GS |
6648 | } |
6649 | break; | |
6650 | } | |
c750a3ec | 6651 | |
cd06dffe GS |
6652 | case OP_RV2AV: |
6653 | case OP_RV2HV: | |
6654 | if (!(o->op_flags & OPf_WANT) | |
e1f15930 GS |
6655 | || (o->op_flags & OPf_WANT) == OPf_WANT_LIST) |
6656 | { | |
cd06dffe | 6657 | last_composite = o; |
e1f15930 | 6658 | } |
cd06dffe GS |
6659 | o->op_seq = PL_op_seqmax++; |
6660 | break; | |
6661 | ||
6662 | case OP_RETURN: | |
970c4905 | 6663 | if (o->op_next && o->op_next->op_type != OP_LEAVESUBLV) { |
cd06dffe GS |
6664 | o->op_seq = PL_op_seqmax++; |
6665 | break; | |
6666 | } | |
6667 | /* FALL THROUGH */ | |
6668 | ||
6669 | case OP_LEAVESUBLV: | |
6670 | if (last_composite) { | |
6671 | OP *r = last_composite; | |
6672 | ||
6673 | while (r->op_sibling) | |
6674 | r = r->op_sibling; | |
6675 | if (r->op_next == o | |
6676 | || (r->op_next->op_type == OP_LIST | |
6677 | && r->op_next->op_next == o)) | |
6678 | { | |
6679 | if (last_composite->op_type == OP_RV2AV) | |
6680 | yyerror("Lvalue subs returning arrays not implemented yet"); | |
6681 | else | |
6682 | yyerror("Lvalue subs returning hashes not implemented yet"); | |
6683 | ; | |
6684 | } | |
6685 | } | |
6686 | /* FALL THROUGH */ | |
6687 | ||
79072805 | 6688 | default: |
3280af22 | 6689 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6690 | break; |
6691 | } | |
a0d0e21e | 6692 | oldop = o; |
79072805 | 6693 | } |
a0d0e21e | 6694 | LEAVE; |
79072805 | 6695 | } |