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 | |
5ce0178e | 165 | && (SvIVX(sv) == PAD_MAX || SvIVX(sv) == 0) |
33633739 GS |
166 | && ((SvFLAGS(sv) & SVpad_OUR) && GvSTASH(sv) == ourstash) |
167 | && strEQ(name, SvPVX(sv))) | |
f472eb5c | 168 | { |
e476b1b5 | 169 | Perl_warner(aTHX_ WARN_MISC, |
33633739 | 170 | "\"our\" variable %s redeclared", name); |
e476b1b5 | 171 | Perl_warner(aTHX_ WARN_MISC, |
cc507455 | 172 | "\t(Did you mean \"local\" instead of \"our\"?)\n"); |
33633739 | 173 | break; |
f472eb5c | 174 | } |
635bab04 | 175 | } while ( off-- > 0 ); |
b1cb66bf | 176 | } |
177 | } | |
a0d0e21e LW |
178 | off = pad_alloc(OP_PADSV, SVs_PADMY); |
179 | sv = NEWSV(1102,0); | |
93a17b20 LW |
180 | sv_upgrade(sv, SVt_PVNV); |
181 | sv_setpv(sv, name); | |
3280af22 | 182 | if (PL_in_my_stash) { |
c750a3ec | 183 | if (*name != '$') |
eb64745e GS |
184 | yyerror(Perl_form(aTHX_ "Can't declare class for non-scalar %s in \"%s\"", |
185 | name, PL_in_my == KEY_our ? "our" : "my")); | |
c750a3ec MB |
186 | SvOBJECT_on(sv); |
187 | (void)SvUPGRADE(sv, SVt_PVMG); | |
3280af22 NIS |
188 | SvSTASH(sv) = (HV*)SvREFCNT_inc(PL_in_my_stash); |
189 | PL_sv_objcount++; | |
c750a3ec | 190 | } |
f472eb5c GS |
191 | if (PL_in_my == KEY_our) { |
192 | (void)SvUPGRADE(sv, SVt_PVGV); | |
ef75a179 | 193 | GvSTASH(sv) = (HV*)SvREFCNT_inc(PL_curstash ? (SV*)PL_curstash : (SV*)PL_defstash); |
77ca0c92 | 194 | SvFLAGS(sv) |= SVpad_OUR; |
f472eb5c | 195 | } |
3280af22 | 196 | av_store(PL_comppad_name, off, sv); |
65202027 | 197 | SvNVX(sv) = (NV)PAD_MAX; |
8990e307 | 198 | SvIVX(sv) = 0; /* Not yet introduced--see newSTATEOP */ |
3280af22 NIS |
199 | if (!PL_min_intro_pending) |
200 | PL_min_intro_pending = off; | |
201 | PL_max_intro_pending = off; | |
93a17b20 | 202 | if (*name == '@') |
3280af22 | 203 | av_store(PL_comppad, off, (SV*)newAV()); |
93a17b20 | 204 | else if (*name == '%') |
3280af22 NIS |
205 | av_store(PL_comppad, off, (SV*)newHV()); |
206 | SvPADMY_on(PL_curpad[off]); | |
93a17b20 LW |
207 | return off; |
208 | } | |
209 | ||
94f23f41 GS |
210 | STATIC PADOFFSET |
211 | S_pad_addlex(pTHX_ SV *proto_namesv) | |
212 | { | |
213 | SV *namesv = NEWSV(1103,0); | |
214 | PADOFFSET newoff = pad_alloc(OP_PADSV, SVs_PADMY); | |
215 | sv_upgrade(namesv, SVt_PVNV); | |
216 | sv_setpv(namesv, SvPVX(proto_namesv)); | |
217 | av_store(PL_comppad_name, newoff, namesv); | |
218 | SvNVX(namesv) = (NV)PL_curcop->cop_seq; | |
219 | SvIVX(namesv) = PAD_MAX; /* A ref, intro immediately */ | |
220 | SvFAKE_on(namesv); /* A ref, not a real var */ | |
221 | if (SvFLAGS(proto_namesv) & SVpad_OUR) { /* An "our" variable */ | |
222 | SvFLAGS(namesv) |= SVpad_OUR; | |
223 | (void)SvUPGRADE(namesv, SVt_PVGV); | |
224 | GvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)GvSTASH(proto_namesv)); | |
225 | } | |
226 | if (SvOBJECT(proto_namesv)) { /* A typed var */ | |
227 | SvOBJECT_on(namesv); | |
228 | (void)SvUPGRADE(namesv, SVt_PVMG); | |
229 | SvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)SvSTASH(proto_namesv)); | |
230 | PL_sv_objcount++; | |
231 | } | |
232 | return newoff; | |
233 | } | |
234 | ||
2680586e GS |
235 | #define FINDLEX_NOSEARCH 1 /* don't search outer contexts */ |
236 | ||
76e3520e | 237 | STATIC PADOFFSET |
cea2e8a9 | 238 | S_pad_findlex(pTHX_ char *name, PADOFFSET newoff, U32 seq, CV* startcv, |
864dbfa3 | 239 | I32 cx_ix, I32 saweval, U32 flags) |
93a17b20 | 240 | { |
11343788 | 241 | dTHR; |
748a9306 | 242 | CV *cv; |
93a17b20 LW |
243 | I32 off; |
244 | SV *sv; | |
93a17b20 | 245 | register I32 i; |
c09156bb | 246 | register PERL_CONTEXT *cx; |
93a17b20 | 247 | |
748a9306 | 248 | for (cv = startcv; cv; cv = CvOUTSIDE(cv)) { |
4fdae800 | 249 | AV *curlist = CvPADLIST(cv); |
250 | SV **svp = av_fetch(curlist, 0, FALSE); | |
748a9306 | 251 | AV *curname; |
4fdae800 | 252 | |
3280af22 | 253 | if (!svp || *svp == &PL_sv_undef) |
4633a7c4 | 254 | continue; |
748a9306 LW |
255 | curname = (AV*)*svp; |
256 | svp = AvARRAY(curname); | |
93965878 | 257 | for (off = AvFILLp(curname); off > 0; off--) { |
748a9306 | 258 | if ((sv = svp[off]) && |
3280af22 | 259 | sv != &PL_sv_undef && |
748a9306 | 260 | seq <= SvIVX(sv) && |
13826f2c | 261 | seq > I_32(SvNVX(sv)) && |
748a9306 LW |
262 | strEQ(SvPVX(sv), name)) |
263 | { | |
5f05dabc | 264 | I32 depth; |
265 | AV *oldpad; | |
266 | SV *oldsv; | |
267 | ||
268 | depth = CvDEPTH(cv); | |
269 | if (!depth) { | |
9607fc9c | 270 | if (newoff) { |
271 | if (SvFAKE(sv)) | |
272 | continue; | |
4fdae800 | 273 | return 0; /* don't clone from inactive stack frame */ |
9607fc9c | 274 | } |
5f05dabc | 275 | depth = 1; |
276 | } | |
94f23f41 | 277 | oldpad = (AV*)AvARRAY(curlist)[depth]; |
5f05dabc | 278 | oldsv = *av_fetch(oldpad, off, TRUE); |
748a9306 | 279 | if (!newoff) { /* Not a mere clone operation. */ |
94f23f41 | 280 | newoff = pad_addlex(sv); |
3280af22 | 281 | if (CvANON(PL_compcv) || SvTYPE(PL_compcv) == SVt_PVFM) { |
28757baa | 282 | /* "It's closures all the way down." */ |
3280af22 | 283 | CvCLONE_on(PL_compcv); |
54310121 | 284 | if (cv == startcv) { |
3280af22 | 285 | if (CvANON(PL_compcv)) |
54310121 | 286 | oldsv = Nullsv; /* no need to keep ref */ |
287 | } | |
288 | else { | |
28757baa | 289 | CV *bcv; |
290 | for (bcv = startcv; | |
291 | bcv && bcv != cv && !CvCLONE(bcv); | |
6b35e009 GS |
292 | bcv = CvOUTSIDE(bcv)) |
293 | { | |
94f23f41 GS |
294 | if (CvANON(bcv)) { |
295 | /* install the missing pad entry in intervening | |
296 | * nested subs and mark them cloneable. | |
297 | * XXX fix pad_foo() to not use globals */ | |
298 | AV *ocomppad_name = PL_comppad_name; | |
299 | AV *ocomppad = PL_comppad; | |
300 | SV **ocurpad = PL_curpad; | |
301 | AV *padlist = CvPADLIST(bcv); | |
302 | PL_comppad_name = (AV*)AvARRAY(padlist)[0]; | |
303 | PL_comppad = (AV*)AvARRAY(padlist)[1]; | |
304 | PL_curpad = AvARRAY(PL_comppad); | |
305 | pad_addlex(sv); | |
306 | PL_comppad_name = ocomppad_name; | |
307 | PL_comppad = ocomppad; | |
308 | PL_curpad = ocurpad; | |
28757baa | 309 | CvCLONE_on(bcv); |
94f23f41 | 310 | } |
28757baa | 311 | else { |
6b35e009 GS |
312 | if (ckWARN(WARN_CLOSURE) |
313 | && !CvUNIQUE(bcv) && !CvUNIQUE(cv)) | |
314 | { | |
cea2e8a9 | 315 | Perl_warner(aTHX_ WARN_CLOSURE, |
44a8e56a | 316 | "Variable \"%s\" may be unavailable", |
28757baa | 317 | name); |
6b35e009 | 318 | } |
28757baa | 319 | break; |
320 | } | |
321 | } | |
322 | } | |
323 | } | |
3280af22 | 324 | else if (!CvUNIQUE(PL_compcv)) { |
741b6338 GS |
325 | if (ckWARN(WARN_CLOSURE) && !SvFAKE(sv) && !CvUNIQUE(cv) |
326 | && !(SvFLAGS(sv) & SVpad_OUR)) | |
327 | { | |
cea2e8a9 | 328 | Perl_warner(aTHX_ WARN_CLOSURE, |
599cee73 | 329 | "Variable \"%s\" will not stay shared", name); |
741b6338 | 330 | } |
5f05dabc | 331 | } |
748a9306 | 332 | } |
3280af22 | 333 | av_store(PL_comppad, newoff, SvREFCNT_inc(oldsv)); |
748a9306 LW |
334 | return newoff; |
335 | } | |
93a17b20 LW |
336 | } |
337 | } | |
338 | ||
2680586e GS |
339 | if (flags & FINDLEX_NOSEARCH) |
340 | return 0; | |
341 | ||
93a17b20 LW |
342 | /* Nothing in current lexical context--try eval's context, if any. |
343 | * This is necessary to let the perldb get at lexically scoped variables. | |
344 | * XXX This will also probably interact badly with eval tree caching. | |
345 | */ | |
346 | ||
748a9306 | 347 | for (i = cx_ix; i >= 0; i--) { |
93a17b20 | 348 | cx = &cxstack[i]; |
6b35e009 | 349 | switch (CxTYPE(cx)) { |
93a17b20 | 350 | default: |
748a9306 LW |
351 | if (i == 0 && saweval) { |
352 | seq = cxstack[saweval].blk_oldcop->cop_seq; | |
2680586e | 353 | return pad_findlex(name, newoff, seq, PL_main_cv, -1, saweval, 0); |
748a9306 | 354 | } |
93a17b20 LW |
355 | break; |
356 | case CXt_EVAL: | |
44a8e56a | 357 | switch (cx->blk_eval.old_op_type) { |
358 | case OP_ENTEREVAL: | |
6b35e009 GS |
359 | if (CxREALEVAL(cx)) |
360 | saweval = i; | |
44a8e56a | 361 | break; |
faa7e5bb | 362 | case OP_DOFILE: |
44a8e56a | 363 | case OP_REQUIRE: |
faa7e5bb | 364 | /* require/do must have their own scope */ |
44a8e56a | 365 | return 0; |
366 | } | |
93a17b20 | 367 | break; |
7766f137 | 368 | case CXt_FORMAT: |
93a17b20 LW |
369 | case CXt_SUB: |
370 | if (!saweval) | |
371 | return 0; | |
372 | cv = cx->blk_sub.cv; | |
3280af22 | 373 | if (PL_debstash && CvSTASH(cv) == PL_debstash) { /* ignore DB'* scope */ |
748a9306 | 374 | saweval = i; /* so we know where we were called from */ |
93a17b20 | 375 | continue; |
93a17b20 | 376 | } |
748a9306 | 377 | seq = cxstack[saweval].blk_oldcop->cop_seq; |
2680586e | 378 | return pad_findlex(name, newoff, seq, cv, i-1, saweval,FINDLEX_NOSEARCH); |
93a17b20 LW |
379 | } |
380 | } | |
381 | ||
748a9306 LW |
382 | return 0; |
383 | } | |
a0d0e21e | 384 | |
748a9306 | 385 | PADOFFSET |
864dbfa3 | 386 | Perl_pad_findmy(pTHX_ char *name) |
748a9306 | 387 | { |
11343788 | 388 | dTHR; |
748a9306 | 389 | I32 off; |
54310121 | 390 | I32 pendoff = 0; |
748a9306 | 391 | SV *sv; |
3280af22 NIS |
392 | SV **svp = AvARRAY(PL_comppad_name); |
393 | U32 seq = PL_cop_seqmax; | |
6b35e009 | 394 | PERL_CONTEXT *cx; |
33b8ce05 | 395 | CV *outside; |
748a9306 | 396 | |
11343788 MB |
397 | #ifdef USE_THREADS |
398 | /* | |
399 | * Special case to get lexical (and hence per-thread) @_. | |
400 | * XXX I need to find out how to tell at parse-time whether use | |
401 | * of @_ should refer to a lexical (from a sub) or defgv (global | |
402 | * scope and maybe weird sub-ish things like formats). See | |
403 | * startsub in perly.y. It's possible that @_ could be lexical | |
404 | * (at least from subs) even in non-threaded perl. | |
405 | */ | |
406 | if (strEQ(name, "@_")) | |
407 | return 0; /* success. (NOT_IN_PAD indicates failure) */ | |
408 | #endif /* USE_THREADS */ | |
409 | ||
748a9306 | 410 | /* The one we're looking for is probably just before comppad_name_fill. */ |
3280af22 | 411 | for (off = AvFILLp(PL_comppad_name); off > 0; off--) { |
a0d0e21e | 412 | if ((sv = svp[off]) && |
3280af22 | 413 | sv != &PL_sv_undef && |
54310121 | 414 | (!SvIVX(sv) || |
415 | (seq <= SvIVX(sv) && | |
416 | seq > I_32(SvNVX(sv)))) && | |
a0d0e21e LW |
417 | strEQ(SvPVX(sv), name)) |
418 | { | |
77ca0c92 | 419 | if (SvIVX(sv) || SvFLAGS(sv) & SVpad_OUR) |
54310121 | 420 | return (PADOFFSET)off; |
421 | pendoff = off; /* this pending def. will override import */ | |
a0d0e21e LW |
422 | } |
423 | } | |
748a9306 | 424 | |
33b8ce05 GS |
425 | outside = CvOUTSIDE(PL_compcv); |
426 | ||
427 | /* Check if if we're compiling an eval'', and adjust seq to be the | |
428 | * eval's seq number. This depends on eval'' having a non-null | |
429 | * CvOUTSIDE() while it is being compiled. The eval'' itself is | |
1aff0e91 GS |
430 | * identified by CvEVAL being true and CvGV being null. */ |
431 | if (outside && CvEVAL(PL_compcv) && !CvGV(PL_compcv) && cxstack_ix >= 0) { | |
6b35e009 GS |
432 | cx = &cxstack[cxstack_ix]; |
433 | if (CxREALEVAL(cx)) | |
434 | seq = cx->blk_oldcop->cop_seq; | |
435 | } | |
436 | ||
748a9306 | 437 | /* See if it's in a nested scope */ |
2680586e | 438 | off = pad_findlex(name, 0, seq, outside, cxstack_ix, 0, 0); |
54310121 | 439 | if (off) { |
440 | /* If there is a pending local definition, this new alias must die */ | |
441 | if (pendoff) | |
3280af22 | 442 | SvIVX(AvARRAY(PL_comppad_name)[off]) = seq; |
11343788 | 443 | return off; /* pad_findlex returns 0 for failure...*/ |
54310121 | 444 | } |
11343788 | 445 | return NOT_IN_PAD; /* ...but we return NOT_IN_PAD for failure */ |
93a17b20 LW |
446 | } |
447 | ||
448 | void | |
864dbfa3 | 449 | Perl_pad_leavemy(pTHX_ I32 fill) |
93a17b20 | 450 | { |
0453d815 | 451 | dTHR; |
93a17b20 | 452 | I32 off; |
3280af22 | 453 | SV **svp = AvARRAY(PL_comppad_name); |
93a17b20 | 454 | SV *sv; |
3280af22 NIS |
455 | if (PL_min_intro_pending && fill < PL_min_intro_pending) { |
456 | for (off = PL_max_intro_pending; off >= PL_min_intro_pending; off--) { | |
0453d815 PM |
457 | if ((sv = svp[off]) && sv != &PL_sv_undef && ckWARN_d(WARN_INTERNAL)) |
458 | Perl_warner(aTHX_ WARN_INTERNAL, "%s never introduced", SvPVX(sv)); | |
8990e307 LW |
459 | } |
460 | } | |
461 | /* "Deintroduce" my variables that are leaving with this scope. */ | |
3280af22 | 462 | for (off = AvFILLp(PL_comppad_name); off > fill; off--) { |
c53d7c7d | 463 | if ((sv = svp[off]) && sv != &PL_sv_undef && SvIVX(sv) == PAD_MAX) |
3280af22 | 464 | SvIVX(sv) = PL_cop_seqmax; |
93a17b20 LW |
465 | } |
466 | } | |
467 | ||
468 | PADOFFSET | |
864dbfa3 | 469 | Perl_pad_alloc(pTHX_ I32 optype, U32 tmptype) |
79072805 | 470 | { |
11343788 | 471 | dTHR; |
79072805 LW |
472 | SV *sv; |
473 | I32 retval; | |
474 | ||
3280af22 | 475 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 476 | Perl_croak(aTHX_ "panic: pad_alloc"); |
3280af22 | 477 | if (PL_pad_reset_pending) |
a0d0e21e | 478 | pad_reset(); |
ed6116ce | 479 | if (tmptype & SVs_PADMY) { |
79072805 | 480 | do { |
3280af22 | 481 | sv = *av_fetch(PL_comppad, AvFILLp(PL_comppad) + 1, TRUE); |
ed6116ce | 482 | } while (SvPADBUSY(sv)); /* need a fresh one */ |
3280af22 | 483 | retval = AvFILLp(PL_comppad); |
79072805 LW |
484 | } |
485 | else { | |
3280af22 NIS |
486 | SV **names = AvARRAY(PL_comppad_name); |
487 | SSize_t names_fill = AvFILLp(PL_comppad_name); | |
bbce6d69 | 488 | for (;;) { |
489 | /* | |
490 | * "foreach" index vars temporarily become aliases to non-"my" | |
491 | * values. Thus we must skip, not just pad values that are | |
492 | * marked as current pad values, but also those with names. | |
493 | */ | |
3280af22 NIS |
494 | if (++PL_padix <= names_fill && |
495 | (sv = names[PL_padix]) && sv != &PL_sv_undef) | |
bbce6d69 | 496 | continue; |
3280af22 | 497 | sv = *av_fetch(PL_comppad, PL_padix, TRUE); |
743e66e6 | 498 | if (!(SvFLAGS(sv) & (SVs_PADTMP|SVs_PADMY)) && !IS_PADGV(sv)) |
bbce6d69 | 499 | break; |
500 | } | |
3280af22 | 501 | retval = PL_padix; |
79072805 | 502 | } |
8990e307 | 503 | SvFLAGS(sv) |= tmptype; |
3280af22 | 504 | PL_curpad = AvARRAY(PL_comppad); |
11343788 | 505 | #ifdef USE_THREADS |
b900a521 JH |
506 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
507 | "0x%"UVxf" Pad 0x%"UVxf" alloc %ld for %s\n", | |
508 | PTR2UV(thr), PTR2UV(PL_curpad), | |
22c35a8c | 509 | (long) retval, PL_op_name[optype])); |
11343788 | 510 | #else |
b900a521 JH |
511 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
512 | "Pad 0x%"UVxf" alloc %ld for %s\n", | |
513 | PTR2UV(PL_curpad), | |
22c35a8c | 514 | (long) retval, PL_op_name[optype])); |
11343788 | 515 | #endif /* USE_THREADS */ |
79072805 LW |
516 | return (PADOFFSET)retval; |
517 | } | |
518 | ||
519 | SV * | |
864dbfa3 | 520 | Perl_pad_sv(pTHX_ PADOFFSET po) |
79072805 | 521 | { |
11343788 MB |
522 | dTHR; |
523 | #ifdef USE_THREADS | |
b900a521 | 524 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
f1dbda3d JH |
525 | "0x%"UVxf" Pad 0x%"UVxf" sv %"IVdf"\n", |
526 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 527 | #else |
79072805 | 528 | if (!po) |
cea2e8a9 | 529 | Perl_croak(aTHX_ "panic: pad_sv po"); |
97835f67 JH |
530 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" sv %"IVdf"\n", |
531 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 532 | #endif /* USE_THREADS */ |
3280af22 | 533 | return PL_curpad[po]; /* eventually we'll turn this into a macro */ |
79072805 LW |
534 | } |
535 | ||
536 | void | |
864dbfa3 | 537 | Perl_pad_free(pTHX_ PADOFFSET po) |
79072805 | 538 | { |
11343788 | 539 | dTHR; |
3280af22 | 540 | if (!PL_curpad) |
a0d0e21e | 541 | return; |
3280af22 | 542 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 543 | Perl_croak(aTHX_ "panic: pad_free curpad"); |
79072805 | 544 | if (!po) |
cea2e8a9 | 545 | Perl_croak(aTHX_ "panic: pad_free po"); |
11343788 | 546 | #ifdef USE_THREADS |
b900a521 | 547 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
7766f137 | 548 | "0x%"UVxf" Pad 0x%"UVxf" free %"IVdf"\n", |
f1dbda3d | 549 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); |
11343788 | 550 | #else |
97835f67 JH |
551 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" free %"IVdf"\n", |
552 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 553 | #endif /* USE_THREADS */ |
2aa1bedc | 554 | if (PL_curpad[po] && PL_curpad[po] != &PL_sv_undef) { |
3280af22 | 555 | SvPADTMP_off(PL_curpad[po]); |
2aa1bedc GS |
556 | #ifdef USE_ITHREADS |
557 | SvREADONLY_off(PL_curpad[po]); /* could be a freed constant */ | |
558 | #endif | |
559 | } | |
3280af22 NIS |
560 | if ((I32)po < PL_padix) |
561 | PL_padix = po - 1; | |
79072805 LW |
562 | } |
563 | ||
564 | void | |
864dbfa3 | 565 | Perl_pad_swipe(pTHX_ PADOFFSET po) |
79072805 | 566 | { |
11343788 | 567 | dTHR; |
3280af22 | 568 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 569 | Perl_croak(aTHX_ "panic: pad_swipe curpad"); |
79072805 | 570 | if (!po) |
cea2e8a9 | 571 | Perl_croak(aTHX_ "panic: pad_swipe po"); |
11343788 | 572 | #ifdef USE_THREADS |
b900a521 | 573 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
f1dbda3d JH |
574 | "0x%"UVxf" Pad 0x%"UVxf" swipe %"IVdf"\n", |
575 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 576 | #else |
97835f67 JH |
577 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" swipe %"IVdf"\n", |
578 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 579 | #endif /* USE_THREADS */ |
3280af22 NIS |
580 | SvPADTMP_off(PL_curpad[po]); |
581 | PL_curpad[po] = NEWSV(1107,0); | |
582 | SvPADTMP_on(PL_curpad[po]); | |
583 | if ((I32)po < PL_padix) | |
584 | PL_padix = po - 1; | |
79072805 LW |
585 | } |
586 | ||
d9bb4600 GS |
587 | /* XXX pad_reset() is currently disabled because it results in serious bugs. |
588 | * It causes pad temp TARGs to be shared between OPs. Since TARGs are pushed | |
589 | * on the stack by OPs that use them, there are several ways to get an alias | |
590 | * to a shared TARG. Such an alias will change randomly and unpredictably. | |
591 | * We avoid doing this until we can think of a Better Way. | |
592 | * GSAR 97-10-29 */ | |
79072805 | 593 | void |
864dbfa3 | 594 | Perl_pad_reset(pTHX) |
79072805 | 595 | { |
d9bb4600 | 596 | #ifdef USE_BROKEN_PAD_RESET |
11343788 | 597 | dTHR; |
79072805 LW |
598 | register I32 po; |
599 | ||
6b88bc9c | 600 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 601 | Perl_croak(aTHX_ "panic: pad_reset curpad"); |
11343788 | 602 | #ifdef USE_THREADS |
b900a521 JH |
603 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
604 | "0x%"UVxf" Pad 0x%"UVxf" reset\n", | |
605 | PTR2UV(thr), PTR2UV(PL_curpad))); | |
11343788 | 606 | #else |
b900a521 JH |
607 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" reset\n", |
608 | PTR2UV(PL_curpad))); | |
11343788 | 609 | #endif /* USE_THREADS */ |
6b88bc9c GS |
610 | if (!PL_tainting) { /* Can't mix tainted and non-tainted temporaries. */ |
611 | for (po = AvMAX(PL_comppad); po > PL_padix_floor; po--) { | |
612 | if (PL_curpad[po] && !SvIMMORTAL(PL_curpad[po])) | |
613 | SvPADTMP_off(PL_curpad[po]); | |
748a9306 | 614 | } |
6b88bc9c | 615 | PL_padix = PL_padix_floor; |
79072805 | 616 | } |
d9bb4600 | 617 | #endif |
3280af22 | 618 | PL_pad_reset_pending = FALSE; |
79072805 LW |
619 | } |
620 | ||
a863c7d1 | 621 | #ifdef USE_THREADS |
54b9620d | 622 | /* find_threadsv is not reentrant */ |
a863c7d1 | 623 | PADOFFSET |
864dbfa3 | 624 | Perl_find_threadsv(pTHX_ const char *name) |
a863c7d1 MB |
625 | { |
626 | dTHR; | |
627 | char *p; | |
628 | PADOFFSET key; | |
554b3eca | 629 | SV **svp; |
54b9620d | 630 | /* We currently only handle names of a single character */ |
533c011a | 631 | p = strchr(PL_threadsv_names, *name); |
a863c7d1 MB |
632 | if (!p) |
633 | return NOT_IN_PAD; | |
533c011a | 634 | key = p - PL_threadsv_names; |
2d8e6c8d | 635 | MUTEX_LOCK(&thr->mutex); |
54b9620d | 636 | svp = av_fetch(thr->threadsv, key, FALSE); |
2d8e6c8d GS |
637 | if (svp) |
638 | MUTEX_UNLOCK(&thr->mutex); | |
639 | else { | |
554b3eca | 640 | SV *sv = NEWSV(0, 0); |
54b9620d | 641 | av_store(thr->threadsv, key, sv); |
940cb80d | 642 | thr->threadsvp = AvARRAY(thr->threadsv); |
2d8e6c8d | 643 | MUTEX_UNLOCK(&thr->mutex); |
554b3eca MB |
644 | /* |
645 | * Some magic variables used to be automagically initialised | |
646 | * in gv_fetchpv. Those which are now per-thread magicals get | |
647 | * initialised here instead. | |
648 | */ | |
649 | switch (*name) { | |
54b9620d MB |
650 | case '_': |
651 | break; | |
554b3eca MB |
652 | case ';': |
653 | sv_setpv(sv, "\034"); | |
54b9620d | 654 | sv_magic(sv, 0, 0, name, 1); |
554b3eca | 655 | break; |
c277df42 IZ |
656 | case '&': |
657 | case '`': | |
658 | case '\'': | |
533c011a | 659 | PL_sawampersand = TRUE; |
a3f914c5 GS |
660 | /* FALL THROUGH */ |
661 | case '1': | |
662 | case '2': | |
663 | case '3': | |
664 | case '4': | |
665 | case '5': | |
666 | case '6': | |
667 | case '7': | |
668 | case '8': | |
669 | case '9': | |
c277df42 | 670 | SvREADONLY_on(sv); |
d8b5173a | 671 | /* FALL THROUGH */ |
067391ea GS |
672 | |
673 | /* XXX %! tied to Errno.pm needs to be added here. | |
674 | * See gv_fetchpv(). */ | |
675 | /* case '!': */ | |
676 | ||
54b9620d MB |
677 | default: |
678 | sv_magic(sv, 0, 0, name, 1); | |
554b3eca | 679 | } |
bf49b057 | 680 | DEBUG_S(PerlIO_printf(Perl_error_log, |
54b9620d | 681 | "find_threadsv: new SV %p for $%s%c\n", |
554b3eca MB |
682 | sv, (*name < 32) ? "^" : "", |
683 | (*name < 32) ? toCTRL(*name) : *name)); | |
a863c7d1 MB |
684 | } |
685 | return key; | |
686 | } | |
687 | #endif /* USE_THREADS */ | |
688 | ||
79072805 LW |
689 | /* Destructor */ |
690 | ||
691 | void | |
864dbfa3 | 692 | Perl_op_free(pTHX_ OP *o) |
79072805 | 693 | { |
85e6fe83 | 694 | register OP *kid, *nextkid; |
acb36ea4 | 695 | OPCODE type; |
79072805 | 696 | |
5dc0d613 | 697 | if (!o || o->op_seq == (U16)-1) |
79072805 LW |
698 | return; |
699 | ||
7934575e GS |
700 | if (o->op_private & OPpREFCOUNTED) { |
701 | switch (o->op_type) { | |
702 | case OP_LEAVESUB: | |
703 | case OP_LEAVESUBLV: | |
704 | case OP_LEAVEEVAL: | |
705 | case OP_LEAVE: | |
706 | case OP_SCOPE: | |
707 | case OP_LEAVEWRITE: | |
708 | OP_REFCNT_LOCK; | |
709 | if (OpREFCNT_dec(o)) { | |
710 | OP_REFCNT_UNLOCK; | |
711 | return; | |
712 | } | |
713 | OP_REFCNT_UNLOCK; | |
714 | break; | |
715 | default: | |
716 | break; | |
717 | } | |
718 | } | |
719 | ||
11343788 MB |
720 | if (o->op_flags & OPf_KIDS) { |
721 | for (kid = cUNOPo->op_first; kid; kid = nextkid) { | |
85e6fe83 | 722 | nextkid = kid->op_sibling; /* Get before next freeing kid */ |
79072805 | 723 | op_free(kid); |
85e6fe83 | 724 | } |
79072805 | 725 | } |
acb36ea4 GS |
726 | type = o->op_type; |
727 | if (type == OP_NULL) | |
728 | type = o->op_targ; | |
729 | ||
730 | /* COP* is not cleared by op_clear() so that we may track line | |
731 | * numbers etc even after null() */ | |
732 | if (type == OP_NEXTSTATE || type == OP_SETSTATE || type == OP_DBSTATE) | |
733 | cop_free((COP*)o); | |
734 | ||
735 | op_clear(o); | |
736 | ||
737 | #ifdef PL_OP_SLAB_ALLOC | |
738 | if ((char *) o == PL_OpPtr) | |
739 | { | |
740 | } | |
741 | #else | |
742 | Safefree(o); | |
743 | #endif | |
744 | } | |
79072805 | 745 | |
acb36ea4 GS |
746 | STATIC void |
747 | S_op_clear(pTHX_ OP *o) | |
748 | { | |
11343788 | 749 | switch (o->op_type) { |
acb36ea4 GS |
750 | case OP_NULL: /* Was holding old type, if any. */ |
751 | case OP_ENTEREVAL: /* Was holding hints. */ | |
752 | #ifdef USE_THREADS | |
753 | case OP_THREADSV: /* Was holding index into thr->threadsv AV. */ | |
754 | #endif | |
755 | o->op_targ = 0; | |
a0d0e21e | 756 | break; |
554b3eca | 757 | #ifdef USE_THREADS |
8dd3ba40 SM |
758 | case OP_ENTERITER: |
759 | if (!(o->op_flags & OPf_SPECIAL)) | |
760 | break; | |
761 | /* FALL THROUGH */ | |
554b3eca | 762 | #endif /* USE_THREADS */ |
a6006777 | 763 | default: |
ac4c12e7 | 764 | if (!(o->op_flags & OPf_REF) |
0b94c7bb | 765 | || (PL_check[o->op_type] != MEMBER_TO_FPTR(Perl_ck_ftst))) |
a6006777 | 766 | break; |
767 | /* FALL THROUGH */ | |
463ee0b2 | 768 | case OP_GVSV: |
79072805 | 769 | case OP_GV: |
a6006777 | 770 | case OP_AELEMFAST: |
350de78d | 771 | #ifdef USE_ITHREADS |
971a9dd3 GS |
772 | if (cPADOPo->op_padix > 0) { |
773 | if (PL_curpad) { | |
638eceb6 | 774 | GV *gv = cGVOPo_gv; |
971a9dd3 GS |
775 | pad_swipe(cPADOPo->op_padix); |
776 | /* No GvIN_PAD_off(gv) here, because other references may still | |
777 | * exist on the pad */ | |
778 | SvREFCNT_dec(gv); | |
779 | } | |
780 | cPADOPo->op_padix = 0; | |
781 | } | |
350de78d | 782 | #else |
971a9dd3 | 783 | SvREFCNT_dec(cSVOPo->op_sv); |
7934575e | 784 | cSVOPo->op_sv = Nullsv; |
350de78d | 785 | #endif |
79072805 | 786 | break; |
a1ae71d2 | 787 | case OP_METHOD_NAMED: |
79072805 | 788 | case OP_CONST: |
11343788 | 789 | SvREFCNT_dec(cSVOPo->op_sv); |
acb36ea4 | 790 | cSVOPo->op_sv = Nullsv; |
79072805 | 791 | break; |
748a9306 LW |
792 | case OP_GOTO: |
793 | case OP_NEXT: | |
794 | case OP_LAST: | |
795 | case OP_REDO: | |
11343788 | 796 | if (o->op_flags & (OPf_SPECIAL|OPf_STACKED|OPf_KIDS)) |
748a9306 LW |
797 | break; |
798 | /* FALL THROUGH */ | |
a0d0e21e | 799 | case OP_TRANS: |
acb36ea4 | 800 | if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { |
a0ed51b3 | 801 | SvREFCNT_dec(cSVOPo->op_sv); |
acb36ea4 GS |
802 | cSVOPo->op_sv = Nullsv; |
803 | } | |
804 | else { | |
a0ed51b3 | 805 | Safefree(cPVOPo->op_pv); |
acb36ea4 GS |
806 | cPVOPo->op_pv = Nullch; |
807 | } | |
a0d0e21e LW |
808 | break; |
809 | case OP_SUBST: | |
11343788 | 810 | op_free(cPMOPo->op_pmreplroot); |
971a9dd3 | 811 | goto clear_pmop; |
748a9306 | 812 | case OP_PUSHRE: |
971a9dd3 GS |
813 | #ifdef USE_ITHREADS |
814 | if ((PADOFFSET)cPMOPo->op_pmreplroot) { | |
815 | if (PL_curpad) { | |
816 | GV *gv = (GV*)PL_curpad[(PADOFFSET)cPMOPo->op_pmreplroot]; | |
817 | pad_swipe((PADOFFSET)cPMOPo->op_pmreplroot); | |
818 | /* No GvIN_PAD_off(gv) here, because other references may still | |
819 | * exist on the pad */ | |
820 | SvREFCNT_dec(gv); | |
821 | } | |
822 | } | |
823 | #else | |
824 | SvREFCNT_dec((SV*)cPMOPo->op_pmreplroot); | |
825 | #endif | |
826 | /* FALL THROUGH */ | |
a0d0e21e | 827 | case OP_MATCH: |
8782bef2 | 828 | case OP_QR: |
971a9dd3 GS |
829 | clear_pmop: |
830 | cPMOPo->op_pmreplroot = Nullop; | |
c277df42 | 831 | ReREFCNT_dec(cPMOPo->op_pmregexp); |
acb36ea4 | 832 | cPMOPo->op_pmregexp = (REGEXP*)NULL; |
a0d0e21e | 833 | break; |
79072805 LW |
834 | } |
835 | ||
743e66e6 | 836 | if (o->op_targ > 0) { |
11343788 | 837 | pad_free(o->op_targ); |
743e66e6 GS |
838 | o->op_targ = 0; |
839 | } | |
79072805 LW |
840 | } |
841 | ||
76e3520e | 842 | STATIC void |
3eb57f73 HS |
843 | S_cop_free(pTHX_ COP* cop) |
844 | { | |
845 | Safefree(cop->cop_label); | |
57843af0 | 846 | #ifdef USE_ITHREADS |
f4dd75d9 GS |
847 | Safefree(CopFILE(cop)); /* XXX share in a pvtable? */ |
848 | Safefree(CopSTASHPV(cop)); /* XXX share in a pvtable? */ | |
57843af0 | 849 | #else |
11faa288 | 850 | /* NOTE: COP.cop_stash is not refcounted */ |
cc49e20b | 851 | SvREFCNT_dec(CopFILEGV(cop)); |
57843af0 | 852 | #endif |
0453d815 | 853 | if (! specialWARN(cop->cop_warnings)) |
3eb57f73 HS |
854 | SvREFCNT_dec(cop->cop_warnings); |
855 | } | |
856 | ||
857 | STATIC void | |
cea2e8a9 | 858 | S_null(pTHX_ OP *o) |
8990e307 | 859 | { |
acb36ea4 GS |
860 | if (o->op_type == OP_NULL) |
861 | return; | |
862 | op_clear(o); | |
11343788 MB |
863 | o->op_targ = o->op_type; |
864 | o->op_type = OP_NULL; | |
22c35a8c | 865 | o->op_ppaddr = PL_ppaddr[OP_NULL]; |
8990e307 LW |
866 | } |
867 | ||
79072805 LW |
868 | /* Contextualizers */ |
869 | ||
463ee0b2 | 870 | #define LINKLIST(o) ((o)->op_next ? (o)->op_next : linklist((OP*)o)) |
79072805 LW |
871 | |
872 | OP * | |
864dbfa3 | 873 | Perl_linklist(pTHX_ OP *o) |
79072805 LW |
874 | { |
875 | register OP *kid; | |
876 | ||
11343788 MB |
877 | if (o->op_next) |
878 | return o->op_next; | |
79072805 LW |
879 | |
880 | /* establish postfix order */ | |
11343788 MB |
881 | if (cUNOPo->op_first) { |
882 | o->op_next = LINKLIST(cUNOPo->op_first); | |
883 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { | |
79072805 LW |
884 | if (kid->op_sibling) |
885 | kid->op_next = LINKLIST(kid->op_sibling); | |
886 | else | |
11343788 | 887 | kid->op_next = o; |
79072805 LW |
888 | } |
889 | } | |
890 | else | |
11343788 | 891 | o->op_next = o; |
79072805 | 892 | |
11343788 | 893 | return o->op_next; |
79072805 LW |
894 | } |
895 | ||
896 | OP * | |
864dbfa3 | 897 | Perl_scalarkids(pTHX_ OP *o) |
79072805 LW |
898 | { |
899 | OP *kid; | |
11343788 MB |
900 | if (o && o->op_flags & OPf_KIDS) { |
901 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
79072805 LW |
902 | scalar(kid); |
903 | } | |
11343788 | 904 | return o; |
79072805 LW |
905 | } |
906 | ||
76e3520e | 907 | STATIC OP * |
cea2e8a9 | 908 | S_scalarboolean(pTHX_ OP *o) |
8990e307 | 909 | { |
d008e5eb | 910 | if (o->op_type == OP_SASSIGN && cBINOPo->op_first->op_type == OP_CONST) { |
0f15f207 | 911 | dTHR; |
d008e5eb | 912 | if (ckWARN(WARN_SYNTAX)) { |
57843af0 | 913 | line_t oldline = CopLINE(PL_curcop); |
a0d0e21e | 914 | |
d008e5eb | 915 | if (PL_copline != NOLINE) |
57843af0 | 916 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 917 | Perl_warner(aTHX_ WARN_SYNTAX, "Found = in conditional, should be =="); |
57843af0 | 918 | CopLINE_set(PL_curcop, oldline); |
d008e5eb | 919 | } |
a0d0e21e | 920 | } |
11343788 | 921 | return scalar(o); |
8990e307 LW |
922 | } |
923 | ||
924 | OP * | |
864dbfa3 | 925 | Perl_scalar(pTHX_ OP *o) |
79072805 LW |
926 | { |
927 | OP *kid; | |
928 | ||
a0d0e21e | 929 | /* assumes no premature commitment */ |
3280af22 | 930 | if (!o || (o->op_flags & OPf_WANT) || PL_error_count |
5dc0d613 | 931 | || o->op_type == OP_RETURN) |
7e363e51 | 932 | { |
11343788 | 933 | return o; |
7e363e51 | 934 | } |
79072805 | 935 | |
5dc0d613 | 936 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_SCALAR; |
79072805 | 937 | |
11343788 | 938 | switch (o->op_type) { |
79072805 | 939 | case OP_REPEAT: |
11343788 MB |
940 | if (o->op_private & OPpREPEAT_DOLIST) |
941 | null(((LISTOP*)cBINOPo->op_first)->op_first); | |
942 | scalar(cBINOPo->op_first); | |
8990e307 | 943 | break; |
79072805 LW |
944 | case OP_OR: |
945 | case OP_AND: | |
946 | case OP_COND_EXPR: | |
11343788 | 947 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
8990e307 | 948 | scalar(kid); |
79072805 | 949 | break; |
a0d0e21e | 950 | case OP_SPLIT: |
11343788 | 951 | if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) { |
a0d0e21e LW |
952 | if (!kPMOP->op_pmreplroot) |
953 | deprecate("implicit split to @_"); | |
954 | } | |
955 | /* FALL THROUGH */ | |
79072805 | 956 | case OP_MATCH: |
8782bef2 | 957 | case OP_QR: |
79072805 LW |
958 | case OP_SUBST: |
959 | case OP_NULL: | |
8990e307 | 960 | default: |
11343788 MB |
961 | if (o->op_flags & OPf_KIDS) { |
962 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) | |
8990e307 LW |
963 | scalar(kid); |
964 | } | |
79072805 LW |
965 | break; |
966 | case OP_LEAVE: | |
967 | case OP_LEAVETRY: | |
5dc0d613 | 968 | kid = cLISTOPo->op_first; |
54310121 | 969 | scalar(kid); |
155aba94 | 970 | while ((kid = kid->op_sibling)) { |
54310121 | 971 | if (kid->op_sibling) |
972 | scalarvoid(kid); | |
973 | else | |
974 | scalar(kid); | |
975 | } | |
3280af22 | 976 | WITH_THR(PL_curcop = &PL_compiling); |
54310121 | 977 | break; |
748a9306 | 978 | case OP_SCOPE: |
79072805 | 979 | case OP_LINESEQ: |
8990e307 | 980 | case OP_LIST: |
11343788 | 981 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
79072805 LW |
982 | if (kid->op_sibling) |
983 | scalarvoid(kid); | |
984 | else | |
985 | scalar(kid); | |
986 | } | |
3280af22 | 987 | WITH_THR(PL_curcop = &PL_compiling); |
79072805 LW |
988 | break; |
989 | } | |
11343788 | 990 | return o; |
79072805 LW |
991 | } |
992 | ||
993 | OP * | |
864dbfa3 | 994 | Perl_scalarvoid(pTHX_ OP *o) |
79072805 LW |
995 | { |
996 | OP *kid; | |
8990e307 LW |
997 | char* useless = 0; |
998 | SV* sv; | |
2ebea0a1 GS |
999 | U8 want; |
1000 | ||
acb36ea4 GS |
1001 | if (o->op_type == OP_NEXTSTATE |
1002 | || o->op_type == OP_SETSTATE | |
1003 | || o->op_type == OP_DBSTATE | |
1004 | || (o->op_type == OP_NULL && (o->op_targ == OP_NEXTSTATE | |
1005 | || o->op_targ == OP_SETSTATE | |
1006 | || o->op_targ == OP_DBSTATE))) | |
2ebea0a1 GS |
1007 | { |
1008 | dTHR; | |
1009 | PL_curcop = (COP*)o; /* for warning below */ | |
1010 | } | |
79072805 | 1011 | |
54310121 | 1012 | /* assumes no premature commitment */ |
2ebea0a1 GS |
1013 | want = o->op_flags & OPf_WANT; |
1014 | if ((want && want != OPf_WANT_SCALAR) || PL_error_count | |
5dc0d613 | 1015 | || o->op_type == OP_RETURN) |
7e363e51 | 1016 | { |
11343788 | 1017 | return o; |
7e363e51 | 1018 | } |
79072805 | 1019 | |
b162f9ea | 1020 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1021 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1022 | { | |
b162f9ea | 1023 | return scalar(o); /* As if inside SASSIGN */ |
7e363e51 | 1024 | } |
b162f9ea | 1025 | |
5dc0d613 | 1026 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_VOID; |
79072805 | 1027 | |
11343788 | 1028 | switch (o->op_type) { |
79072805 | 1029 | default: |
22c35a8c | 1030 | if (!(PL_opargs[o->op_type] & OA_FOLDCONST)) |
8990e307 | 1031 | break; |
36477c24 | 1032 | /* FALL THROUGH */ |
1033 | case OP_REPEAT: | |
11343788 | 1034 | if (o->op_flags & OPf_STACKED) |
8990e307 | 1035 | break; |
5d82c453 GA |
1036 | goto func_ops; |
1037 | case OP_SUBSTR: | |
1038 | if (o->op_private == 4) | |
1039 | break; | |
8990e307 LW |
1040 | /* FALL THROUGH */ |
1041 | case OP_GVSV: | |
1042 | case OP_WANTARRAY: | |
1043 | case OP_GV: | |
1044 | case OP_PADSV: | |
1045 | case OP_PADAV: | |
1046 | case OP_PADHV: | |
1047 | case OP_PADANY: | |
1048 | case OP_AV2ARYLEN: | |
8990e307 | 1049 | case OP_REF: |
a0d0e21e LW |
1050 | case OP_REFGEN: |
1051 | case OP_SREFGEN: | |
8990e307 LW |
1052 | case OP_DEFINED: |
1053 | case OP_HEX: | |
1054 | case OP_OCT: | |
1055 | case OP_LENGTH: | |
8990e307 LW |
1056 | case OP_VEC: |
1057 | case OP_INDEX: | |
1058 | case OP_RINDEX: | |
1059 | case OP_SPRINTF: | |
1060 | case OP_AELEM: | |
1061 | case OP_AELEMFAST: | |
1062 | case OP_ASLICE: | |
8990e307 LW |
1063 | case OP_HELEM: |
1064 | case OP_HSLICE: | |
1065 | case OP_UNPACK: | |
1066 | case OP_PACK: | |
8990e307 LW |
1067 | case OP_JOIN: |
1068 | case OP_LSLICE: | |
1069 | case OP_ANONLIST: | |
1070 | case OP_ANONHASH: | |
1071 | case OP_SORT: | |
1072 | case OP_REVERSE: | |
1073 | case OP_RANGE: | |
1074 | case OP_FLIP: | |
1075 | case OP_FLOP: | |
1076 | case OP_CALLER: | |
1077 | case OP_FILENO: | |
1078 | case OP_EOF: | |
1079 | case OP_TELL: | |
1080 | case OP_GETSOCKNAME: | |
1081 | case OP_GETPEERNAME: | |
1082 | case OP_READLINK: | |
1083 | case OP_TELLDIR: | |
1084 | case OP_GETPPID: | |
1085 | case OP_GETPGRP: | |
1086 | case OP_GETPRIORITY: | |
1087 | case OP_TIME: | |
1088 | case OP_TMS: | |
1089 | case OP_LOCALTIME: | |
1090 | case OP_GMTIME: | |
1091 | case OP_GHBYNAME: | |
1092 | case OP_GHBYADDR: | |
1093 | case OP_GHOSTENT: | |
1094 | case OP_GNBYNAME: | |
1095 | case OP_GNBYADDR: | |
1096 | case OP_GNETENT: | |
1097 | case OP_GPBYNAME: | |
1098 | case OP_GPBYNUMBER: | |
1099 | case OP_GPROTOENT: | |
1100 | case OP_GSBYNAME: | |
1101 | case OP_GSBYPORT: | |
1102 | case OP_GSERVENT: | |
1103 | case OP_GPWNAM: | |
1104 | case OP_GPWUID: | |
1105 | case OP_GGRNAM: | |
1106 | case OP_GGRGID: | |
1107 | case OP_GETLOGIN: | |
5d82c453 | 1108 | func_ops: |
64aac5a9 | 1109 | if (!(o->op_private & (OPpLVAL_INTRO|OPpOUR_INTRO))) |
22c35a8c | 1110 | useless = PL_op_desc[o->op_type]; |
8990e307 LW |
1111 | break; |
1112 | ||
1113 | case OP_RV2GV: | |
1114 | case OP_RV2SV: | |
1115 | case OP_RV2AV: | |
1116 | case OP_RV2HV: | |
192587c2 | 1117 | if (!(o->op_private & (OPpLVAL_INTRO|OPpOUR_INTRO)) && |
11343788 | 1118 | (!o->op_sibling || o->op_sibling->op_type != OP_READLINE)) |
8990e307 LW |
1119 | useless = "a variable"; |
1120 | break; | |
79072805 LW |
1121 | |
1122 | case OP_CONST: | |
7766f137 | 1123 | sv = cSVOPo_sv; |
7a52d87a GS |
1124 | if (cSVOPo->op_private & OPpCONST_STRICT) |
1125 | no_bareword_allowed(o); | |
1126 | else { | |
d008e5eb GS |
1127 | dTHR; |
1128 | if (ckWARN(WARN_VOID)) { | |
1129 | useless = "a constant"; | |
1130 | if (SvNIOK(sv) && (SvNV(sv) == 0.0 || SvNV(sv) == 1.0)) | |
1131 | useless = 0; | |
1132 | else if (SvPOK(sv)) { | |
1133 | if (strnEQ(SvPVX(sv), "di", 2) || | |
1134 | strnEQ(SvPVX(sv), "ds", 2) || | |
1135 | strnEQ(SvPVX(sv), "ig", 2)) | |
1136 | useless = 0; | |
1137 | } | |
8990e307 LW |
1138 | } |
1139 | } | |
acb36ea4 | 1140 | null(o); /* don't execute or even remember it */ |
79072805 LW |
1141 | break; |
1142 | ||
1143 | case OP_POSTINC: | |
11343788 | 1144 | o->op_type = OP_PREINC; /* pre-increment is faster */ |
22c35a8c | 1145 | o->op_ppaddr = PL_ppaddr[OP_PREINC]; |
79072805 LW |
1146 | break; |
1147 | ||
1148 | case OP_POSTDEC: | |
11343788 | 1149 | o->op_type = OP_PREDEC; /* pre-decrement is faster */ |
22c35a8c | 1150 | o->op_ppaddr = PL_ppaddr[OP_PREDEC]; |
79072805 LW |
1151 | break; |
1152 | ||
79072805 LW |
1153 | case OP_OR: |
1154 | case OP_AND: | |
1155 | case OP_COND_EXPR: | |
11343788 | 1156 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
79072805 LW |
1157 | scalarvoid(kid); |
1158 | break; | |
5aabfad6 | 1159 | |
a0d0e21e | 1160 | case OP_NULL: |
11343788 | 1161 | if (o->op_flags & OPf_STACKED) |
a0d0e21e | 1162 | break; |
5aabfad6 | 1163 | /* FALL THROUGH */ |
2ebea0a1 GS |
1164 | case OP_NEXTSTATE: |
1165 | case OP_DBSTATE: | |
79072805 LW |
1166 | case OP_ENTERTRY: |
1167 | case OP_ENTER: | |
11343788 | 1168 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1169 | break; |
54310121 | 1170 | /* FALL THROUGH */ |
463ee0b2 | 1171 | case OP_SCOPE: |
79072805 LW |
1172 | case OP_LEAVE: |
1173 | case OP_LEAVETRY: | |
a0d0e21e | 1174 | case OP_LEAVELOOP: |
79072805 | 1175 | case OP_LINESEQ: |
79072805 | 1176 | case OP_LIST: |
11343788 | 1177 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
79072805 LW |
1178 | scalarvoid(kid); |
1179 | break; | |
c90c0ff4 | 1180 | case OP_ENTEREVAL: |
5196be3e | 1181 | scalarkids(o); |
c90c0ff4 | 1182 | break; |
5aabfad6 | 1183 | case OP_REQUIRE: |
c90c0ff4 | 1184 | /* all requires must return a boolean value */ |
5196be3e | 1185 | o->op_flags &= ~OPf_WANT; |
d6483035 GS |
1186 | /* FALL THROUGH */ |
1187 | case OP_SCALAR: | |
5196be3e | 1188 | return scalar(o); |
a0d0e21e | 1189 | case OP_SPLIT: |
11343788 | 1190 | if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) { |
a0d0e21e LW |
1191 | if (!kPMOP->op_pmreplroot) |
1192 | deprecate("implicit split to @_"); | |
1193 | } | |
1194 | break; | |
79072805 | 1195 | } |
d008e5eb GS |
1196 | if (useless) { |
1197 | dTHR; | |
1198 | if (ckWARN(WARN_VOID)) | |
cea2e8a9 | 1199 | Perl_warner(aTHX_ WARN_VOID, "Useless use of %s in void context", useless); |
d008e5eb | 1200 | } |
11343788 | 1201 | return o; |
79072805 LW |
1202 | } |
1203 | ||
1204 | OP * | |
864dbfa3 | 1205 | Perl_listkids(pTHX_ OP *o) |
79072805 LW |
1206 | { |
1207 | OP *kid; | |
11343788 MB |
1208 | if (o && o->op_flags & OPf_KIDS) { |
1209 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
79072805 LW |
1210 | list(kid); |
1211 | } | |
11343788 | 1212 | return o; |
79072805 LW |
1213 | } |
1214 | ||
1215 | OP * | |
864dbfa3 | 1216 | Perl_list(pTHX_ OP *o) |
79072805 LW |
1217 | { |
1218 | OP *kid; | |
1219 | ||
a0d0e21e | 1220 | /* assumes no premature commitment */ |
3280af22 | 1221 | if (!o || (o->op_flags & OPf_WANT) || PL_error_count |
5dc0d613 | 1222 | || o->op_type == OP_RETURN) |
7e363e51 | 1223 | { |
11343788 | 1224 | return o; |
7e363e51 | 1225 | } |
79072805 | 1226 | |
b162f9ea | 1227 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1228 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1229 | { | |
b162f9ea | 1230 | return o; /* As if inside SASSIGN */ |
7e363e51 | 1231 | } |
b162f9ea | 1232 | |
5dc0d613 | 1233 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_LIST; |
79072805 | 1234 | |
11343788 | 1235 | switch (o->op_type) { |
79072805 LW |
1236 | case OP_FLOP: |
1237 | case OP_REPEAT: | |
11343788 | 1238 | list(cBINOPo->op_first); |
79072805 LW |
1239 | break; |
1240 | case OP_OR: | |
1241 | case OP_AND: | |
1242 | case OP_COND_EXPR: | |
11343788 | 1243 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
79072805 LW |
1244 | list(kid); |
1245 | break; | |
1246 | default: | |
1247 | case OP_MATCH: | |
8782bef2 | 1248 | case OP_QR: |
79072805 LW |
1249 | case OP_SUBST: |
1250 | case OP_NULL: | |
11343788 | 1251 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1252 | break; |
11343788 MB |
1253 | if (!o->op_next && cUNOPo->op_first->op_type == OP_FLOP) { |
1254 | list(cBINOPo->op_first); | |
1255 | return gen_constant_list(o); | |
79072805 LW |
1256 | } |
1257 | case OP_LIST: | |
11343788 | 1258 | listkids(o); |
79072805 LW |
1259 | break; |
1260 | case OP_LEAVE: | |
1261 | case OP_LEAVETRY: | |
5dc0d613 | 1262 | kid = cLISTOPo->op_first; |
54310121 | 1263 | list(kid); |
155aba94 | 1264 | while ((kid = kid->op_sibling)) { |
54310121 | 1265 | if (kid->op_sibling) |
1266 | scalarvoid(kid); | |
1267 | else | |
1268 | list(kid); | |
1269 | } | |
3280af22 | 1270 | WITH_THR(PL_curcop = &PL_compiling); |
54310121 | 1271 | break; |
748a9306 | 1272 | case OP_SCOPE: |
79072805 | 1273 | case OP_LINESEQ: |
11343788 | 1274 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
79072805 LW |
1275 | if (kid->op_sibling) |
1276 | scalarvoid(kid); | |
1277 | else | |
1278 | list(kid); | |
1279 | } | |
3280af22 | 1280 | WITH_THR(PL_curcop = &PL_compiling); |
79072805 | 1281 | break; |
c90c0ff4 | 1282 | case OP_REQUIRE: |
1283 | /* all requires must return a boolean value */ | |
5196be3e MB |
1284 | o->op_flags &= ~OPf_WANT; |
1285 | return scalar(o); | |
79072805 | 1286 | } |
11343788 | 1287 | return o; |
79072805 LW |
1288 | } |
1289 | ||
1290 | OP * | |
864dbfa3 | 1291 | Perl_scalarseq(pTHX_ OP *o) |
79072805 LW |
1292 | { |
1293 | OP *kid; | |
1294 | ||
11343788 MB |
1295 | if (o) { |
1296 | if (o->op_type == OP_LINESEQ || | |
1297 | o->op_type == OP_SCOPE || | |
1298 | o->op_type == OP_LEAVE || | |
1299 | o->op_type == OP_LEAVETRY) | |
463ee0b2 | 1300 | { |
0f15f207 | 1301 | dTHR; |
11343788 | 1302 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
ed6116ce | 1303 | if (kid->op_sibling) { |
463ee0b2 | 1304 | scalarvoid(kid); |
ed6116ce | 1305 | } |
463ee0b2 | 1306 | } |
3280af22 | 1307 | PL_curcop = &PL_compiling; |
79072805 | 1308 | } |
11343788 | 1309 | o->op_flags &= ~OPf_PARENS; |
3280af22 | 1310 | if (PL_hints & HINT_BLOCK_SCOPE) |
11343788 | 1311 | o->op_flags |= OPf_PARENS; |
79072805 | 1312 | } |
8990e307 | 1313 | else |
11343788 MB |
1314 | o = newOP(OP_STUB, 0); |
1315 | return o; | |
79072805 LW |
1316 | } |
1317 | ||
76e3520e | 1318 | STATIC OP * |
cea2e8a9 | 1319 | S_modkids(pTHX_ OP *o, I32 type) |
79072805 LW |
1320 | { |
1321 | OP *kid; | |
11343788 MB |
1322 | if (o && o->op_flags & OPf_KIDS) { |
1323 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
463ee0b2 | 1324 | mod(kid, type); |
79072805 | 1325 | } |
11343788 | 1326 | return o; |
79072805 LW |
1327 | } |
1328 | ||
79072805 | 1329 | OP * |
864dbfa3 | 1330 | Perl_mod(pTHX_ OP *o, I32 type) |
79072805 | 1331 | { |
11343788 | 1332 | dTHR; |
79072805 | 1333 | OP *kid; |
2d8e6c8d | 1334 | STRLEN n_a; |
79072805 | 1335 | |
3280af22 | 1336 | if (!o || PL_error_count) |
11343788 | 1337 | return o; |
79072805 | 1338 | |
b162f9ea | 1339 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1340 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1341 | { | |
b162f9ea | 1342 | return o; |
7e363e51 | 1343 | } |
b162f9ea | 1344 | |
11343788 | 1345 | switch (o->op_type) { |
68dc0745 | 1346 | case OP_UNDEF: |
3280af22 | 1347 | PL_modcount++; |
5dc0d613 | 1348 | return o; |
a0d0e21e | 1349 | case OP_CONST: |
11343788 | 1350 | if (!(o->op_private & (OPpCONST_ARYBASE))) |
a0d0e21e | 1351 | goto nomod; |
3280af22 | 1352 | if (PL_eval_start && PL_eval_start->op_type == OP_CONST) { |
7766f137 | 1353 | PL_compiling.cop_arybase = (I32)SvIV(cSVOPx(PL_eval_start)->op_sv); |
3280af22 | 1354 | PL_eval_start = 0; |
a0d0e21e LW |
1355 | } |
1356 | else if (!type) { | |
3280af22 NIS |
1357 | SAVEI32(PL_compiling.cop_arybase); |
1358 | PL_compiling.cop_arybase = 0; | |
a0d0e21e LW |
1359 | } |
1360 | else if (type == OP_REFGEN) | |
1361 | goto nomod; | |
1362 | else | |
cea2e8a9 | 1363 | Perl_croak(aTHX_ "That use of $[ is unsupported"); |
a0d0e21e | 1364 | break; |
5f05dabc | 1365 | case OP_STUB: |
5196be3e | 1366 | if (o->op_flags & OPf_PARENS) |
5f05dabc | 1367 | break; |
1368 | goto nomod; | |
a0d0e21e LW |
1369 | case OP_ENTERSUB: |
1370 | if ((type == OP_UNDEF || type == OP_REFGEN) && | |
11343788 MB |
1371 | !(o->op_flags & OPf_STACKED)) { |
1372 | o->op_type = OP_RV2CV; /* entersub => rv2cv */ | |
22c35a8c | 1373 | o->op_ppaddr = PL_ppaddr[OP_RV2CV]; |
11343788 MB |
1374 | assert(cUNOPo->op_first->op_type == OP_NULL); |
1375 | null(((LISTOP*)cUNOPo->op_first)->op_first);/* disable pushmark */ | |
79072805 LW |
1376 | break; |
1377 | } | |
cd06dffe GS |
1378 | else { /* lvalue subroutine call */ |
1379 | o->op_private |= OPpLVAL_INTRO; | |
4978d6d9 | 1380 | if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN) { |
cd06dffe GS |
1381 | /* Backward compatibility mode: */ |
1382 | o->op_private |= OPpENTERSUB_INARGS; | |
1383 | break; | |
1384 | } | |
1385 | else { /* Compile-time error message: */ | |
1386 | OP *kid = cUNOPo->op_first; | |
1387 | CV *cv; | |
1388 | OP *okid; | |
1389 | ||
1390 | if (kid->op_type == OP_PUSHMARK) | |
1391 | goto skip_kids; | |
1392 | if (kid->op_type != OP_NULL || kid->op_targ != OP_LIST) | |
1393 | Perl_croak(aTHX_ | |
1394 | "panic: unexpected lvalue entersub " | |
1395 | "args: type/targ %ld:%ld", | |
1396 | (long)kid->op_type,kid->op_targ); | |
1397 | kid = kLISTOP->op_first; | |
1398 | skip_kids: | |
1399 | while (kid->op_sibling) | |
1400 | kid = kid->op_sibling; | |
1401 | if (!(kid->op_type == OP_NULL && kid->op_targ == OP_RV2CV)) { | |
1402 | /* Indirect call */ | |
1403 | if (kid->op_type == OP_METHOD_NAMED | |
1404 | || kid->op_type == OP_METHOD) | |
1405 | { | |
87d7fd28 | 1406 | UNOP *newop; |
cd06dffe GS |
1407 | |
1408 | if (kid->op_sibling || kid->op_next != kid) { | |
1409 | yyerror("panic: unexpected optree near method call"); | |
1410 | break; | |
1411 | } | |
1412 | ||
87d7fd28 | 1413 | NewOp(1101, newop, 1, UNOP); |
349fd7b7 GS |
1414 | newop->op_type = OP_RV2CV; |
1415 | newop->op_ppaddr = PL_ppaddr[OP_RV2CV]; | |
87d7fd28 GS |
1416 | newop->op_first = Nullop; |
1417 | newop->op_next = (OP*)newop; | |
1418 | kid->op_sibling = (OP*)newop; | |
349fd7b7 | 1419 | newop->op_private |= OPpLVAL_INTRO; |
cd06dffe GS |
1420 | break; |
1421 | } | |
1422 | ||
1423 | if (kid->op_type != OP_RV2CV) | |
1424 | Perl_croak(aTHX_ | |
1425 | "panic: unexpected lvalue entersub " | |
1426 | "entry via type/targ %ld:%ld", | |
1427 | (long)kid->op_type,kid->op_targ); | |
1428 | kid->op_private |= OPpLVAL_INTRO; | |
1429 | break; /* Postpone until runtime */ | |
1430 | } | |
1431 | ||
1432 | okid = kid; | |
1433 | kid = kUNOP->op_first; | |
1434 | if (kid->op_type == OP_NULL && kid->op_targ == OP_RV2SV) | |
1435 | kid = kUNOP->op_first; | |
1436 | if (kid->op_type == OP_NULL) | |
1437 | Perl_croak(aTHX_ | |
1438 | "Unexpected constant lvalue entersub " | |
1439 | "entry via type/targ %ld:%ld", | |
1440 | (long)kid->op_type,kid->op_targ); | |
1441 | if (kid->op_type != OP_GV) { | |
1442 | /* Restore RV2CV to check lvalueness */ | |
1443 | restore_2cv: | |
1444 | if (kid->op_next && kid->op_next != kid) { /* Happens? */ | |
1445 | okid->op_next = kid->op_next; | |
1446 | kid->op_next = okid; | |
1447 | } | |
1448 | else | |
1449 | okid->op_next = Nullop; | |
1450 | okid->op_type = OP_RV2CV; | |
1451 | okid->op_targ = 0; | |
1452 | okid->op_ppaddr = PL_ppaddr[OP_RV2CV]; | |
1453 | okid->op_private |= OPpLVAL_INTRO; | |
1454 | break; | |
1455 | } | |
1456 | ||
638eceb6 | 1457 | cv = GvCV(kGVOP_gv); |
cd06dffe GS |
1458 | if (!cv) |
1459 | goto restore_2cv; | |
1460 | if (CvLVALUE(cv)) | |
1461 | break; | |
1462 | } | |
1463 | } | |
79072805 LW |
1464 | /* FALL THROUGH */ |
1465 | default: | |
a0d0e21e LW |
1466 | nomod: |
1467 | /* grep, foreach, subcalls, refgen */ | |
1468 | if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN) | |
1469 | break; | |
cea2e8a9 | 1470 | yyerror(Perl_form(aTHX_ "Can't modify %s in %s", |
638bc118 | 1471 | (o->op_type == OP_NULL && (o->op_flags & OPf_SPECIAL) |
cd06dffe GS |
1472 | ? "do block" |
1473 | : (o->op_type == OP_ENTERSUB | |
1474 | ? "non-lvalue subroutine call" | |
1475 | : PL_op_desc[o->op_type])), | |
22c35a8c | 1476 | type ? PL_op_desc[type] : "local")); |
11343788 | 1477 | return o; |
79072805 | 1478 | |
a0d0e21e LW |
1479 | case OP_PREINC: |
1480 | case OP_PREDEC: | |
1481 | case OP_POW: | |
1482 | case OP_MULTIPLY: | |
1483 | case OP_DIVIDE: | |
1484 | case OP_MODULO: | |
1485 | case OP_REPEAT: | |
1486 | case OP_ADD: | |
1487 | case OP_SUBTRACT: | |
1488 | case OP_CONCAT: | |
1489 | case OP_LEFT_SHIFT: | |
1490 | case OP_RIGHT_SHIFT: | |
1491 | case OP_BIT_AND: | |
1492 | case OP_BIT_XOR: | |
1493 | case OP_BIT_OR: | |
1494 | case OP_I_MULTIPLY: | |
1495 | case OP_I_DIVIDE: | |
1496 | case OP_I_MODULO: | |
1497 | case OP_I_ADD: | |
1498 | case OP_I_SUBTRACT: | |
11343788 | 1499 | if (!(o->op_flags & OPf_STACKED)) |
a0d0e21e | 1500 | goto nomod; |
3280af22 | 1501 | PL_modcount++; |
a0d0e21e LW |
1502 | break; |
1503 | ||
79072805 | 1504 | case OP_COND_EXPR: |
11343788 | 1505 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
463ee0b2 | 1506 | mod(kid, type); |
79072805 LW |
1507 | break; |
1508 | ||
1509 | case OP_RV2AV: | |
1510 | case OP_RV2HV: | |
93af7a87 | 1511 | if (!type && cUNOPo->op_first->op_type != OP_GV) |
cea2e8a9 | 1512 | Perl_croak(aTHX_ "Can't localize through a reference"); |
11343788 | 1513 | if (type == OP_REFGEN && o->op_flags & OPf_PARENS) { |
3280af22 | 1514 | PL_modcount = 10000; |
11343788 | 1515 | return o; /* Treat \(@foo) like ordinary list. */ |
748a9306 LW |
1516 | } |
1517 | /* FALL THROUGH */ | |
79072805 | 1518 | case OP_RV2GV: |
5dc0d613 | 1519 | if (scalar_mod_type(o, type)) |
3fe9a6f1 | 1520 | goto nomod; |
11343788 | 1521 | ref(cUNOPo->op_first, o->op_type); |
79072805 LW |
1522 | /* FALL THROUGH */ |
1523 | case OP_AASSIGN: | |
1524 | case OP_ASLICE: | |
1525 | case OP_HSLICE: | |
93a17b20 LW |
1526 | case OP_NEXTSTATE: |
1527 | case OP_DBSTATE: | |
a0d0e21e LW |
1528 | case OP_REFGEN: |
1529 | case OP_CHOMP: | |
3280af22 | 1530 | PL_modcount = 10000; |
79072805 | 1531 | break; |
463ee0b2 | 1532 | case OP_RV2SV: |
11343788 | 1533 | if (!type && cUNOPo->op_first->op_type != OP_GV) |
cea2e8a9 | 1534 | Perl_croak(aTHX_ "Can't localize through a reference"); |
aeea060c | 1535 | ref(cUNOPo->op_first, o->op_type); |
463ee0b2 | 1536 | /* FALL THROUGH */ |
79072805 | 1537 | case OP_GV: |
463ee0b2 | 1538 | case OP_AV2ARYLEN: |
3280af22 | 1539 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 1540 | case OP_SASSIGN: |
bf4b1e52 GS |
1541 | case OP_ANDASSIGN: |
1542 | case OP_ORASSIGN: | |
8990e307 | 1543 | case OP_AELEMFAST: |
3280af22 | 1544 | PL_modcount++; |
8990e307 LW |
1545 | break; |
1546 | ||
748a9306 LW |
1547 | case OP_PADAV: |
1548 | case OP_PADHV: | |
3280af22 | 1549 | PL_modcount = 10000; |
5196be3e MB |
1550 | if (type == OP_REFGEN && o->op_flags & OPf_PARENS) |
1551 | return o; /* Treat \(@foo) like ordinary list. */ | |
1552 | if (scalar_mod_type(o, type)) | |
3fe9a6f1 | 1553 | goto nomod; |
748a9306 LW |
1554 | /* FALL THROUGH */ |
1555 | case OP_PADSV: | |
3280af22 | 1556 | PL_modcount++; |
748a9306 | 1557 | if (!type) |
cea2e8a9 | 1558 | Perl_croak(aTHX_ "Can't localize lexical variable %s", |
2d8e6c8d | 1559 | SvPV(*av_fetch(PL_comppad_name, o->op_targ, 4), n_a)); |
463ee0b2 LW |
1560 | break; |
1561 | ||
554b3eca | 1562 | #ifdef USE_THREADS |
2faa37cc | 1563 | case OP_THREADSV: |
533c011a | 1564 | PL_modcount++; /* XXX ??? */ |
554b3eca MB |
1565 | break; |
1566 | #endif /* USE_THREADS */ | |
1567 | ||
748a9306 LW |
1568 | case OP_PUSHMARK: |
1569 | break; | |
a0d0e21e | 1570 | |
69969c6f SB |
1571 | case OP_KEYS: |
1572 | if (type != OP_SASSIGN) | |
1573 | goto nomod; | |
5d82c453 GA |
1574 | goto lvalue_func; |
1575 | case OP_SUBSTR: | |
1576 | if (o->op_private == 4) /* don't allow 4 arg substr as lvalue */ | |
1577 | goto nomod; | |
5f05dabc | 1578 | /* FALL THROUGH */ |
a0d0e21e | 1579 | case OP_POS: |
463ee0b2 | 1580 | case OP_VEC: |
5d82c453 | 1581 | lvalue_func: |
11343788 MB |
1582 | pad_free(o->op_targ); |
1583 | o->op_targ = pad_alloc(o->op_type, SVs_PADMY); | |
5dc0d613 | 1584 | assert(SvTYPE(PAD_SV(o->op_targ)) == SVt_NULL); |
11343788 MB |
1585 | if (o->op_flags & OPf_KIDS) |
1586 | mod(cBINOPo->op_first->op_sibling, type); | |
463ee0b2 | 1587 | break; |
a0d0e21e | 1588 | |
463ee0b2 LW |
1589 | case OP_AELEM: |
1590 | case OP_HELEM: | |
11343788 | 1591 | ref(cBINOPo->op_first, o->op_type); |
68dc0745 | 1592 | if (type == OP_ENTERSUB && |
5dc0d613 MB |
1593 | !(o->op_private & (OPpLVAL_INTRO | OPpDEREF))) |
1594 | o->op_private |= OPpLVAL_DEFER; | |
3280af22 | 1595 | PL_modcount++; |
463ee0b2 LW |
1596 | break; |
1597 | ||
1598 | case OP_SCOPE: | |
1599 | case OP_LEAVE: | |
1600 | case OP_ENTER: | |
11343788 MB |
1601 | if (o->op_flags & OPf_KIDS) |
1602 | mod(cLISTOPo->op_last, type); | |
a0d0e21e LW |
1603 | break; |
1604 | ||
1605 | case OP_NULL: | |
638bc118 GS |
1606 | if (o->op_flags & OPf_SPECIAL) /* do BLOCK */ |
1607 | goto nomod; | |
1608 | else if (!(o->op_flags & OPf_KIDS)) | |
463ee0b2 | 1609 | break; |
11343788 MB |
1610 | if (o->op_targ != OP_LIST) { |
1611 | mod(cBINOPo->op_first, type); | |
a0d0e21e LW |
1612 | break; |
1613 | } | |
1614 | /* FALL THROUGH */ | |
463ee0b2 | 1615 | case OP_LIST: |
11343788 | 1616 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
463ee0b2 LW |
1617 | mod(kid, type); |
1618 | break; | |
1619 | } | |
11343788 | 1620 | o->op_flags |= OPf_MOD; |
a0d0e21e LW |
1621 | |
1622 | if (type == OP_AASSIGN || type == OP_SASSIGN) | |
11343788 | 1623 | o->op_flags |= OPf_SPECIAL|OPf_REF; |
a0d0e21e | 1624 | else if (!type) { |
11343788 MB |
1625 | o->op_private |= OPpLVAL_INTRO; |
1626 | o->op_flags &= ~OPf_SPECIAL; | |
3280af22 | 1627 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 1628 | } |
a0d0e21e | 1629 | else if (type != OP_GREPSTART && type != OP_ENTERSUB) |
11343788 MB |
1630 | o->op_flags |= OPf_REF; |
1631 | return o; | |
463ee0b2 LW |
1632 | } |
1633 | ||
864dbfa3 | 1634 | STATIC bool |
cea2e8a9 | 1635 | S_scalar_mod_type(pTHX_ OP *o, I32 type) |
3fe9a6f1 | 1636 | { |
1637 | switch (type) { | |
1638 | case OP_SASSIGN: | |
5196be3e | 1639 | if (o->op_type == OP_RV2GV) |
3fe9a6f1 | 1640 | return FALSE; |
1641 | /* FALL THROUGH */ | |
1642 | case OP_PREINC: | |
1643 | case OP_PREDEC: | |
1644 | case OP_POSTINC: | |
1645 | case OP_POSTDEC: | |
1646 | case OP_I_PREINC: | |
1647 | case OP_I_PREDEC: | |
1648 | case OP_I_POSTINC: | |
1649 | case OP_I_POSTDEC: | |
1650 | case OP_POW: | |
1651 | case OP_MULTIPLY: | |
1652 | case OP_DIVIDE: | |
1653 | case OP_MODULO: | |
1654 | case OP_REPEAT: | |
1655 | case OP_ADD: | |
1656 | case OP_SUBTRACT: | |
1657 | case OP_I_MULTIPLY: | |
1658 | case OP_I_DIVIDE: | |
1659 | case OP_I_MODULO: | |
1660 | case OP_I_ADD: | |
1661 | case OP_I_SUBTRACT: | |
1662 | case OP_LEFT_SHIFT: | |
1663 | case OP_RIGHT_SHIFT: | |
1664 | case OP_BIT_AND: | |
1665 | case OP_BIT_XOR: | |
1666 | case OP_BIT_OR: | |
1667 | case OP_CONCAT: | |
1668 | case OP_SUBST: | |
1669 | case OP_TRANS: | |
49e9fbe6 GS |
1670 | case OP_READ: |
1671 | case OP_SYSREAD: | |
1672 | case OP_RECV: | |
bf4b1e52 GS |
1673 | case OP_ANDASSIGN: |
1674 | case OP_ORASSIGN: | |
3fe9a6f1 | 1675 | return TRUE; |
1676 | default: | |
1677 | return FALSE; | |
1678 | } | |
1679 | } | |
1680 | ||
35cd451c | 1681 | STATIC bool |
cea2e8a9 | 1682 | S_is_handle_constructor(pTHX_ OP *o, I32 argnum) |
35cd451c GS |
1683 | { |
1684 | switch (o->op_type) { | |
1685 | case OP_PIPE_OP: | |
1686 | case OP_SOCKPAIR: | |
1687 | if (argnum == 2) | |
1688 | return TRUE; | |
1689 | /* FALL THROUGH */ | |
1690 | case OP_SYSOPEN: | |
1691 | case OP_OPEN: | |
ded8aa31 | 1692 | case OP_SELECT: /* XXX c.f. SelectSaver.pm */ |
35cd451c GS |
1693 | case OP_SOCKET: |
1694 | case OP_OPEN_DIR: | |
1695 | case OP_ACCEPT: | |
1696 | if (argnum == 1) | |
1697 | return TRUE; | |
1698 | /* FALL THROUGH */ | |
1699 | default: | |
1700 | return FALSE; | |
1701 | } | |
1702 | } | |
1703 | ||
463ee0b2 | 1704 | OP * |
864dbfa3 | 1705 | Perl_refkids(pTHX_ OP *o, I32 type) |
463ee0b2 LW |
1706 | { |
1707 | OP *kid; | |
11343788 MB |
1708 | if (o && o->op_flags & OPf_KIDS) { |
1709 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
463ee0b2 LW |
1710 | ref(kid, type); |
1711 | } | |
11343788 | 1712 | return o; |
463ee0b2 LW |
1713 | } |
1714 | ||
1715 | OP * | |
864dbfa3 | 1716 | Perl_ref(pTHX_ OP *o, I32 type) |
463ee0b2 LW |
1717 | { |
1718 | OP *kid; | |
463ee0b2 | 1719 | |
3280af22 | 1720 | if (!o || PL_error_count) |
11343788 | 1721 | return o; |
463ee0b2 | 1722 | |
11343788 | 1723 | switch (o->op_type) { |
a0d0e21e | 1724 | case OP_ENTERSUB: |
afebc493 | 1725 | if ((type == OP_EXISTS || type == OP_DEFINED || type == OP_LOCK) && |
11343788 MB |
1726 | !(o->op_flags & OPf_STACKED)) { |
1727 | o->op_type = OP_RV2CV; /* entersub => rv2cv */ | |
22c35a8c | 1728 | o->op_ppaddr = PL_ppaddr[OP_RV2CV]; |
11343788 MB |
1729 | assert(cUNOPo->op_first->op_type == OP_NULL); |
1730 | null(((LISTOP*)cUNOPo->op_first)->op_first); /* disable pushmark */ | |
1731 | o->op_flags |= OPf_SPECIAL; | |
8990e307 LW |
1732 | } |
1733 | break; | |
aeea060c | 1734 | |
463ee0b2 | 1735 | case OP_COND_EXPR: |
11343788 | 1736 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
463ee0b2 LW |
1737 | ref(kid, type); |
1738 | break; | |
8990e307 | 1739 | case OP_RV2SV: |
35cd451c GS |
1740 | if (type == OP_DEFINED) |
1741 | o->op_flags |= OPf_SPECIAL; /* don't create GV */ | |
11343788 | 1742 | ref(cUNOPo->op_first, o->op_type); |
4633a7c4 LW |
1743 | /* FALL THROUGH */ |
1744 | case OP_PADSV: | |
5f05dabc | 1745 | if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) { |
5dc0d613 MB |
1746 | o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV |
1747 | : type == OP_RV2HV ? OPpDEREF_HV | |
1748 | : OPpDEREF_SV); | |
11343788 | 1749 | o->op_flags |= OPf_MOD; |
a0d0e21e | 1750 | } |
8990e307 LW |
1751 | break; |
1752 | ||
2faa37cc | 1753 | case OP_THREADSV: |
a863c7d1 MB |
1754 | o->op_flags |= OPf_MOD; /* XXX ??? */ |
1755 | break; | |
1756 | ||
463ee0b2 LW |
1757 | case OP_RV2AV: |
1758 | case OP_RV2HV: | |
aeea060c | 1759 | o->op_flags |= OPf_REF; |
8990e307 | 1760 | /* FALL THROUGH */ |
463ee0b2 | 1761 | case OP_RV2GV: |
35cd451c GS |
1762 | if (type == OP_DEFINED) |
1763 | o->op_flags |= OPf_SPECIAL; /* don't create GV */ | |
11343788 | 1764 | ref(cUNOPo->op_first, o->op_type); |
463ee0b2 | 1765 | break; |
8990e307 | 1766 | |
463ee0b2 LW |
1767 | case OP_PADAV: |
1768 | case OP_PADHV: | |
aeea060c | 1769 | o->op_flags |= OPf_REF; |
79072805 | 1770 | break; |
aeea060c | 1771 | |
8990e307 | 1772 | case OP_SCALAR: |
79072805 | 1773 | case OP_NULL: |
11343788 | 1774 | if (!(o->op_flags & OPf_KIDS)) |
463ee0b2 | 1775 | break; |
11343788 | 1776 | ref(cBINOPo->op_first, type); |
79072805 LW |
1777 | break; |
1778 | case OP_AELEM: | |
1779 | case OP_HELEM: | |
11343788 | 1780 | ref(cBINOPo->op_first, o->op_type); |
5f05dabc | 1781 | if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) { |
5dc0d613 MB |
1782 | o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV |
1783 | : type == OP_RV2HV ? OPpDEREF_HV | |
1784 | : OPpDEREF_SV); | |
11343788 | 1785 | o->op_flags |= OPf_MOD; |
8990e307 | 1786 | } |
79072805 LW |
1787 | break; |
1788 | ||
463ee0b2 | 1789 | case OP_SCOPE: |
79072805 LW |
1790 | case OP_LEAVE: |
1791 | case OP_ENTER: | |
8990e307 | 1792 | case OP_LIST: |
11343788 | 1793 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1794 | break; |
11343788 | 1795 | ref(cLISTOPo->op_last, type); |
79072805 | 1796 | break; |
a0d0e21e LW |
1797 | default: |
1798 | break; | |
79072805 | 1799 | } |
11343788 | 1800 | return scalar(o); |
8990e307 | 1801 | |
79072805 LW |
1802 | } |
1803 | ||
09bef843 SB |
1804 | STATIC OP * |
1805 | S_dup_attrlist(pTHX_ OP *o) | |
1806 | { | |
1807 | OP *rop = Nullop; | |
1808 | ||
1809 | /* An attrlist is either a simple OP_CONST or an OP_LIST with kids, | |
1810 | * where the first kid is OP_PUSHMARK and the remaining ones | |
1811 | * are OP_CONST. We need to push the OP_CONST values. | |
1812 | */ | |
1813 | if (o->op_type == OP_CONST) | |
1814 | rop = newSVOP(OP_CONST, o->op_flags, SvREFCNT_inc(cSVOPo->op_sv)); | |
1815 | else { | |
1816 | assert((o->op_type == OP_LIST) && (o->op_flags & OPf_KIDS)); | |
1817 | for (o = cLISTOPo->op_first; o; o=o->op_sibling) { | |
1818 | if (o->op_type == OP_CONST) | |
1819 | rop = append_elem(OP_LIST, rop, | |
1820 | newSVOP(OP_CONST, o->op_flags, | |
1821 | SvREFCNT_inc(cSVOPo->op_sv))); | |
1822 | } | |
1823 | } | |
1824 | return rop; | |
1825 | } | |
1826 | ||
1827 | STATIC void | |
1828 | S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs) | |
1829 | { | |
09bef843 SB |
1830 | SV *stashsv; |
1831 | ||
1832 | /* fake up C<use attributes $pkg,$rv,@attrs> */ | |
1833 | ENTER; /* need to protect against side-effects of 'use' */ | |
1834 | SAVEINT(PL_expect); | |
1835 | if (stash && HvNAME(stash)) | |
1836 | stashsv = newSVpv(HvNAME(stash), 0); | |
1837 | else | |
1838 | stashsv = &PL_sv_no; | |
e4783991 | 1839 | |
09bef843 | 1840 | #define ATTRSMODULE "attributes" |
e4783991 GS |
1841 | |
1842 | Perl_load_module(aTHX_ PERL_LOADMOD_IMPORT_OPS, | |
1843 | newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1), | |
1844 | Nullsv, | |
1845 | prepend_elem(OP_LIST, | |
1846 | newSVOP(OP_CONST, 0, stashsv), | |
1847 | prepend_elem(OP_LIST, | |
1848 | newSVOP(OP_CONST, 0, | |
1849 | newRV(target)), | |
1850 | dup_attrlist(attrs)))); | |
09bef843 SB |
1851 | LEAVE; |
1852 | } | |
1853 | ||
be3174d2 GS |
1854 | void |
1855 | Perl_apply_attrs_string(pTHX_ char *stashpv, CV *cv, | |
1856 | char *attrstr, STRLEN len) | |
1857 | { | |
1858 | OP *attrs = Nullop; | |
1859 | ||
1860 | if (!len) { | |
1861 | len = strlen(attrstr); | |
1862 | } | |
1863 | ||
1864 | while (len) { | |
1865 | for (; isSPACE(*attrstr) && len; --len, ++attrstr) ; | |
1866 | if (len) { | |
1867 | char *sstr = attrstr; | |
1868 | for (; !isSPACE(*attrstr) && len; --len, ++attrstr) ; | |
1869 | attrs = append_elem(OP_LIST, attrs, | |
1870 | newSVOP(OP_CONST, 0, | |
1871 | newSVpvn(sstr, attrstr-sstr))); | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | Perl_load_module(aTHX_ PERL_LOADMOD_IMPORT_OPS, | |
1876 | newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1), | |
1877 | Nullsv, prepend_elem(OP_LIST, | |
1878 | newSVOP(OP_CONST, 0, newSVpv(stashpv,0)), | |
1879 | prepend_elem(OP_LIST, | |
1880 | newSVOP(OP_CONST, 0, | |
1881 | newRV((SV*)cv)), | |
1882 | attrs))); | |
1883 | } | |
1884 | ||
09bef843 SB |
1885 | STATIC OP * |
1886 | S_my_kid(pTHX_ OP *o, OP *attrs) | |
93a17b20 LW |
1887 | { |
1888 | OP *kid; | |
93a17b20 LW |
1889 | I32 type; |
1890 | ||
3280af22 | 1891 | if (!o || PL_error_count) |
11343788 | 1892 | return o; |
93a17b20 | 1893 | |
11343788 | 1894 | type = o->op_type; |
93a17b20 | 1895 | if (type == OP_LIST) { |
11343788 | 1896 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
09bef843 | 1897 | my_kid(kid, attrs); |
dab48698 | 1898 | } else if (type == OP_UNDEF) { |
7766148a | 1899 | return o; |
77ca0c92 LW |
1900 | } else if (type == OP_RV2SV || /* "our" declaration */ |
1901 | type == OP_RV2AV || | |
1902 | type == OP_RV2HV) { /* XXX does this let anything illegal in? */ | |
192587c2 | 1903 | o->op_private |= OPpOUR_INTRO; |
77ca0c92 | 1904 | return o; |
dab48698 | 1905 | } else if (type != OP_PADSV && |
93a17b20 LW |
1906 | type != OP_PADAV && |
1907 | type != OP_PADHV && | |
1908 | type != OP_PUSHMARK) | |
1909 | { | |
eb64745e GS |
1910 | yyerror(Perl_form(aTHX_ "Can't declare %s in \"%s\"", |
1911 | PL_op_desc[o->op_type], | |
1912 | PL_in_my == KEY_our ? "our" : "my")); | |
11343788 | 1913 | return o; |
93a17b20 | 1914 | } |
09bef843 SB |
1915 | else if (attrs && type != OP_PUSHMARK) { |
1916 | HV *stash; | |
1917 | SV *padsv; | |
1918 | SV **namesvp; | |
1919 | ||
eb64745e GS |
1920 | PL_in_my = FALSE; |
1921 | PL_in_my_stash = Nullhv; | |
1922 | ||
09bef843 SB |
1923 | /* check for C<my Dog $spot> when deciding package */ |
1924 | namesvp = av_fetch(PL_comppad_name, o->op_targ, FALSE); | |
1925 | if (namesvp && *namesvp && SvOBJECT(*namesvp) && HvNAME(SvSTASH(*namesvp))) | |
1926 | stash = SvSTASH(*namesvp); | |
1927 | else | |
1928 | stash = PL_curstash; | |
1929 | padsv = PAD_SV(o->op_targ); | |
1930 | apply_attrs(stash, padsv, attrs); | |
1931 | } | |
11343788 MB |
1932 | o->op_flags |= OPf_MOD; |
1933 | o->op_private |= OPpLVAL_INTRO; | |
1934 | return o; | |
93a17b20 LW |
1935 | } |
1936 | ||
1937 | OP * | |
09bef843 SB |
1938 | Perl_my_attrs(pTHX_ OP *o, OP *attrs) |
1939 | { | |
1940 | if (o->op_flags & OPf_PARENS) | |
1941 | list(o); | |
09bef843 SB |
1942 | if (attrs) |
1943 | SAVEFREEOP(attrs); | |
eb64745e GS |
1944 | o = my_kid(o, attrs); |
1945 | PL_in_my = FALSE; | |
1946 | PL_in_my_stash = Nullhv; | |
1947 | return o; | |
09bef843 SB |
1948 | } |
1949 | ||
1950 | OP * | |
1951 | Perl_my(pTHX_ OP *o) | |
1952 | { | |
1953 | return my_kid(o, Nullop); | |
1954 | } | |
1955 | ||
1956 | OP * | |
864dbfa3 | 1957 | Perl_sawparens(pTHX_ OP *o) |
79072805 LW |
1958 | { |
1959 | if (o) | |
1960 | o->op_flags |= OPf_PARENS; | |
1961 | return o; | |
1962 | } | |
1963 | ||
1964 | OP * | |
864dbfa3 | 1965 | Perl_bind_match(pTHX_ I32 type, OP *left, OP *right) |
79072805 | 1966 | { |
d008e5eb | 1967 | dTHR; |
11343788 | 1968 | OP *o; |
79072805 | 1969 | |
e476b1b5 | 1970 | if (ckWARN(WARN_MISC) && |
599cee73 PM |
1971 | (left->op_type == OP_RV2AV || |
1972 | left->op_type == OP_RV2HV || | |
1973 | left->op_type == OP_PADAV || | |
1974 | left->op_type == OP_PADHV)) { | |
22c35a8c | 1975 | char *desc = PL_op_desc[(right->op_type == OP_SUBST || |
599cee73 PM |
1976 | right->op_type == OP_TRANS) |
1977 | ? right->op_type : OP_MATCH]; | |
dff6d3cd GS |
1978 | const char *sample = ((left->op_type == OP_RV2AV || |
1979 | left->op_type == OP_PADAV) | |
1980 | ? "@array" : "%hash"); | |
e476b1b5 | 1981 | Perl_warner(aTHX_ WARN_MISC, |
599cee73 PM |
1982 | "Applying %s to %s will act on scalar(%s)", |
1983 | desc, sample, sample); | |
2ae324a7 | 1984 | } |
1985 | ||
de4bf5b3 MG |
1986 | if (!(right->op_flags & OPf_STACKED) && |
1987 | (right->op_type == OP_MATCH || | |
79072805 | 1988 | right->op_type == OP_SUBST || |
de4bf5b3 | 1989 | right->op_type == OP_TRANS)) { |
79072805 | 1990 | right->op_flags |= OPf_STACKED; |
d897a58d MG |
1991 | if (right->op_type != OP_MATCH && |
1992 | ! (right->op_type == OP_TRANS && | |
1993 | right->op_private & OPpTRANS_IDENTICAL)) | |
463ee0b2 | 1994 | left = mod(left, right->op_type); |
79072805 | 1995 | if (right->op_type == OP_TRANS) |
11343788 | 1996 | o = newBINOP(OP_NULL, OPf_STACKED, scalar(left), right); |
79072805 | 1997 | else |
11343788 | 1998 | o = prepend_elem(right->op_type, scalar(left), right); |
79072805 | 1999 | if (type == OP_NOT) |
11343788 MB |
2000 | return newUNOP(OP_NOT, 0, scalar(o)); |
2001 | return o; | |
79072805 LW |
2002 | } |
2003 | else | |
2004 | return bind_match(type, left, | |
2005 | pmruntime(newPMOP(OP_MATCH, 0), right, Nullop)); | |
2006 | } | |
2007 | ||
2008 | OP * | |
864dbfa3 | 2009 | Perl_invert(pTHX_ OP *o) |
79072805 | 2010 | { |
11343788 MB |
2011 | if (!o) |
2012 | return o; | |
79072805 | 2013 | /* XXX need to optimize away NOT NOT here? Or do we let optimizer do it? */ |
11343788 | 2014 | return newUNOP(OP_NOT, OPf_SPECIAL, scalar(o)); |
79072805 LW |
2015 | } |
2016 | ||
2017 | OP * | |
864dbfa3 | 2018 | Perl_scope(pTHX_ OP *o) |
79072805 LW |
2019 | { |
2020 | if (o) { | |
3280af22 | 2021 | if (o->op_flags & OPf_PARENS || PERLDB_NOOPT || PL_tainting) { |
463ee0b2 LW |
2022 | o = prepend_elem(OP_LINESEQ, newOP(OP_ENTER, 0), o); |
2023 | o->op_type = OP_LEAVE; | |
22c35a8c | 2024 | o->op_ppaddr = PL_ppaddr[OP_LEAVE]; |
463ee0b2 LW |
2025 | } |
2026 | else { | |
2027 | if (o->op_type == OP_LINESEQ) { | |
2028 | OP *kid; | |
2029 | o->op_type = OP_SCOPE; | |
22c35a8c | 2030 | o->op_ppaddr = PL_ppaddr[OP_SCOPE]; |
c3ed7a6a GS |
2031 | kid = ((LISTOP*)o)->op_first; |
2032 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) | |
2033 | null(kid); | |
463ee0b2 LW |
2034 | } |
2035 | else | |
748a9306 | 2036 | o = newLISTOP(OP_SCOPE, 0, o, Nullop); |
463ee0b2 | 2037 | } |
79072805 LW |
2038 | } |
2039 | return o; | |
2040 | } | |
2041 | ||
b3ac6de7 | 2042 | void |
864dbfa3 | 2043 | Perl_save_hints(pTHX) |
b3ac6de7 | 2044 | { |
3280af22 NIS |
2045 | SAVEI32(PL_hints); |
2046 | SAVESPTR(GvHV(PL_hintgv)); | |
2047 | GvHV(PL_hintgv) = newHVhv(GvHV(PL_hintgv)); | |
2048 | SAVEFREESV(GvHV(PL_hintgv)); | |
b3ac6de7 IZ |
2049 | } |
2050 | ||
a0d0e21e | 2051 | int |
864dbfa3 | 2052 | Perl_block_start(pTHX_ int full) |
79072805 | 2053 | { |
11343788 | 2054 | dTHR; |
3280af22 | 2055 | int retval = PL_savestack_ix; |
b3ac6de7 | 2056 | |
3280af22 | 2057 | SAVEI32(PL_comppad_name_floor); |
43d4d5c6 GS |
2058 | PL_comppad_name_floor = AvFILLp(PL_comppad_name); |
2059 | if (full) | |
2060 | PL_comppad_name_fill = PL_comppad_name_floor; | |
2061 | if (PL_comppad_name_floor < 0) | |
2062 | PL_comppad_name_floor = 0; | |
3280af22 NIS |
2063 | SAVEI32(PL_min_intro_pending); |
2064 | SAVEI32(PL_max_intro_pending); | |
2065 | PL_min_intro_pending = 0; | |
2066 | SAVEI32(PL_comppad_name_fill); | |
2067 | SAVEI32(PL_padix_floor); | |
2068 | PL_padix_floor = PL_padix; | |
2069 | PL_pad_reset_pending = FALSE; | |
b3ac6de7 | 2070 | SAVEHINTS(); |
3280af22 | 2071 | PL_hints &= ~HINT_BLOCK_SCOPE; |
7766f137 | 2072 | SAVESPTR(PL_compiling.cop_warnings); |
0453d815 | 2073 | if (! specialWARN(PL_compiling.cop_warnings)) { |
599cee73 PM |
2074 | PL_compiling.cop_warnings = newSVsv(PL_compiling.cop_warnings) ; |
2075 | SAVEFREESV(PL_compiling.cop_warnings) ; | |
2076 | } | |
a0d0e21e LW |
2077 | return retval; |
2078 | } | |
2079 | ||
2080 | OP* | |
864dbfa3 | 2081 | Perl_block_end(pTHX_ I32 floor, OP *seq) |
a0d0e21e | 2082 | { |
11343788 | 2083 | dTHR; |
3280af22 | 2084 | int needblockscope = PL_hints & HINT_BLOCK_SCOPE; |
a0d0e21e | 2085 | OP* retval = scalarseq(seq); |
a0d0e21e | 2086 | LEAVE_SCOPE(floor); |
3280af22 | 2087 | PL_pad_reset_pending = FALSE; |
e24b16f9 | 2088 | PL_compiling.op_private = PL_hints; |
a0d0e21e | 2089 | if (needblockscope) |
3280af22 NIS |
2090 | PL_hints |= HINT_BLOCK_SCOPE; /* propagate out */ |
2091 | pad_leavemy(PL_comppad_name_fill); | |
2092 | PL_cop_seqmax++; | |
a0d0e21e LW |
2093 | return retval; |
2094 | } | |
2095 | ||
76e3520e | 2096 | STATIC OP * |
cea2e8a9 | 2097 | S_newDEFSVOP(pTHX) |
54b9620d MB |
2098 | { |
2099 | #ifdef USE_THREADS | |
2100 | OP *o = newOP(OP_THREADSV, 0); | |
2101 | o->op_targ = find_threadsv("_"); | |
2102 | return o; | |
2103 | #else | |
3280af22 | 2104 | return newSVREF(newGVOP(OP_GV, 0, PL_defgv)); |
54b9620d MB |
2105 | #endif /* USE_THREADS */ |
2106 | } | |
2107 | ||
a0d0e21e | 2108 | void |
864dbfa3 | 2109 | Perl_newPROG(pTHX_ OP *o) |
a0d0e21e | 2110 | { |
11343788 | 2111 | dTHR; |
3280af22 | 2112 | if (PL_in_eval) { |
b295d113 TH |
2113 | if (PL_eval_root) |
2114 | return; | |
faef0170 HS |
2115 | PL_eval_root = newUNOP(OP_LEAVEEVAL, |
2116 | ((PL_in_eval & EVAL_KEEPERR) | |
2117 | ? OPf_SPECIAL : 0), o); | |
3280af22 | 2118 | PL_eval_start = linklist(PL_eval_root); |
7934575e GS |
2119 | PL_eval_root->op_private |= OPpREFCOUNTED; |
2120 | OpREFCNT_set(PL_eval_root, 1); | |
3280af22 NIS |
2121 | PL_eval_root->op_next = 0; |
2122 | peep(PL_eval_start); | |
a0d0e21e LW |
2123 | } |
2124 | else { | |
5dc0d613 | 2125 | if (!o) |
a0d0e21e | 2126 | return; |
3280af22 NIS |
2127 | PL_main_root = scope(sawparens(scalarvoid(o))); |
2128 | PL_curcop = &PL_compiling; | |
2129 | PL_main_start = LINKLIST(PL_main_root); | |
7934575e GS |
2130 | PL_main_root->op_private |= OPpREFCOUNTED; |
2131 | OpREFCNT_set(PL_main_root, 1); | |
3280af22 NIS |
2132 | PL_main_root->op_next = 0; |
2133 | peep(PL_main_start); | |
2134 | PL_compcv = 0; | |
3841441e | 2135 | |
4fdae800 | 2136 | /* Register with debugger */ |
84902520 | 2137 | if (PERLDB_INTER) { |
864dbfa3 | 2138 | CV *cv = get_cv("DB::postponed", FALSE); |
3841441e CS |
2139 | if (cv) { |
2140 | dSP; | |
924508f0 | 2141 | PUSHMARK(SP); |
cc49e20b | 2142 | XPUSHs((SV*)CopFILEGV(&PL_compiling)); |
3841441e | 2143 | PUTBACK; |
864dbfa3 | 2144 | call_sv((SV*)cv, G_DISCARD); |
3841441e CS |
2145 | } |
2146 | } | |
79072805 | 2147 | } |
79072805 LW |
2148 | } |
2149 | ||
2150 | OP * | |
864dbfa3 | 2151 | Perl_localize(pTHX_ OP *o, I32 lex) |
79072805 LW |
2152 | { |
2153 | if (o->op_flags & OPf_PARENS) | |
2154 | list(o); | |
8990e307 | 2155 | else { |
d008e5eb | 2156 | dTHR; |
599cee73 | 2157 | if (ckWARN(WARN_PARENTHESIS) && PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == ',') { |
8990e307 | 2158 | char *s; |
834a4ddd | 2159 | for (s = PL_bufptr; *s && (isALNUM(*s) || (*s & 0x80) || strchr("@$%, ",*s)); s++) ; |
a0d0e21e | 2160 | if (*s == ';' || *s == '=') |
eb64745e GS |
2161 | Perl_warner(aTHX_ WARN_PARENTHESIS, |
2162 | "Parentheses missing around \"%s\" list", | |
2163 | lex ? (PL_in_my == KEY_our ? "our" : "my") : "local"); | |
8990e307 LW |
2164 | } |
2165 | } | |
93a17b20 | 2166 | if (lex) |
eb64745e | 2167 | o = my(o); |
93a17b20 | 2168 | else |
eb64745e GS |
2169 | o = mod(o, OP_NULL); /* a bit kludgey */ |
2170 | PL_in_my = FALSE; | |
2171 | PL_in_my_stash = Nullhv; | |
2172 | return o; | |
79072805 LW |
2173 | } |
2174 | ||
2175 | OP * | |
864dbfa3 | 2176 | Perl_jmaybe(pTHX_ OP *o) |
79072805 LW |
2177 | { |
2178 | if (o->op_type == OP_LIST) { | |
554b3eca MB |
2179 | OP *o2; |
2180 | #ifdef USE_THREADS | |
2faa37cc | 2181 | o2 = newOP(OP_THREADSV, 0); |
54b9620d | 2182 | o2->op_targ = find_threadsv(";"); |
554b3eca MB |
2183 | #else |
2184 | o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))), | |
2185 | #endif /* USE_THREADS */ | |
2186 | o = convert(OP_JOIN, 0, prepend_elem(OP_LIST, o2, o)); | |
79072805 LW |
2187 | } |
2188 | return o; | |
2189 | } | |
2190 | ||
2191 | OP * | |
864dbfa3 | 2192 | Perl_fold_constants(pTHX_ register OP *o) |
79072805 | 2193 | { |
11343788 | 2194 | dTHR; |
79072805 LW |
2195 | register OP *curop; |
2196 | I32 type = o->op_type; | |
748a9306 | 2197 | SV *sv; |
79072805 | 2198 | |
22c35a8c | 2199 | if (PL_opargs[type] & OA_RETSCALAR) |
79072805 | 2200 | scalar(o); |
b162f9ea | 2201 | if (PL_opargs[type] & OA_TARGET && !o->op_targ) |
ed6116ce | 2202 | o->op_targ = pad_alloc(type, SVs_PADTMP); |
79072805 | 2203 | |
eac055e9 GS |
2204 | /* integerize op, unless it happens to be C<-foo>. |
2205 | * XXX should pp_i_negate() do magic string negation instead? */ | |
2206 | if ((PL_opargs[type] & OA_OTHERINT) && (PL_hints & HINT_INTEGER) | |
2207 | && !(type == OP_NEGATE && cUNOPo->op_first->op_type == OP_CONST | |
2208 | && (cUNOPo->op_first->op_private & OPpCONST_BARE))) | |
2209 | { | |
22c35a8c | 2210 | o->op_ppaddr = PL_ppaddr[type = ++(o->op_type)]; |
eac055e9 | 2211 | } |
85e6fe83 | 2212 | |
22c35a8c | 2213 | if (!(PL_opargs[type] & OA_FOLDCONST)) |
79072805 LW |
2214 | goto nope; |
2215 | ||
de939608 | 2216 | switch (type) { |
7a52d87a GS |
2217 | case OP_NEGATE: |
2218 | /* XXX might want a ck_negate() for this */ | |
2219 | cUNOPo->op_first->op_private &= ~OPpCONST_STRICT; | |
2220 | break; | |
de939608 CS |
2221 | case OP_SPRINTF: |
2222 | case OP_UCFIRST: | |
2223 | case OP_LCFIRST: | |
2224 | case OP_UC: | |
2225 | case OP_LC: | |
69dcf70c MB |
2226 | case OP_SLT: |
2227 | case OP_SGT: | |
2228 | case OP_SLE: | |
2229 | case OP_SGE: | |
2230 | case OP_SCMP: | |
2231 | ||
de939608 CS |
2232 | if (o->op_private & OPpLOCALE) |
2233 | goto nope; | |
2234 | } | |
2235 | ||
3280af22 | 2236 | if (PL_error_count) |
a0d0e21e LW |
2237 | goto nope; /* Don't try to run w/ errors */ |
2238 | ||
79072805 | 2239 | for (curop = LINKLIST(o); curop != o; curop = LINKLIST(curop)) { |
11fa937b GS |
2240 | if ((curop->op_type != OP_CONST || |
2241 | (curop->op_private & OPpCONST_BARE)) && | |
7a52d87a GS |
2242 | curop->op_type != OP_LIST && |
2243 | curop->op_type != OP_SCALAR && | |
2244 | curop->op_type != OP_NULL && | |
2245 | curop->op_type != OP_PUSHMARK) | |
2246 | { | |
79072805 LW |
2247 | goto nope; |
2248 | } | |
2249 | } | |
2250 | ||
2251 | curop = LINKLIST(o); | |
2252 | o->op_next = 0; | |
533c011a | 2253 | PL_op = curop; |
cea2e8a9 | 2254 | CALLRUNOPS(aTHX); |
3280af22 | 2255 | sv = *(PL_stack_sp--); |
748a9306 | 2256 | if (o->op_targ && sv == PAD_SV(o->op_targ)) /* grab pad temp? */ |
79072805 | 2257 | pad_swipe(o->op_targ); |
748a9306 LW |
2258 | else if (SvTEMP(sv)) { /* grab mortal temp? */ |
2259 | (void)SvREFCNT_inc(sv); | |
2260 | SvTEMP_off(sv); | |
85e6fe83 | 2261 | } |
79072805 LW |
2262 | op_free(o); |
2263 | if (type == OP_RV2GV) | |
b1cb66bf | 2264 | return newGVOP(OP_GV, 0, (GV*)sv); |
748a9306 | 2265 | else { |
ee580363 GS |
2266 | /* try to smush double to int, but don't smush -2.0 to -2 */ |
2267 | if ((SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK)) == SVf_NOK && | |
2268 | type != OP_NEGATE) | |
2269 | { | |
748a9306 | 2270 | IV iv = SvIV(sv); |
65202027 | 2271 | if ((NV)iv == SvNV(sv)) { |
748a9306 LW |
2272 | SvREFCNT_dec(sv); |
2273 | sv = newSViv(iv); | |
2274 | } | |
b1cb66bf | 2275 | else |
2276 | SvIOK_off(sv); /* undo SvIV() damage */ | |
748a9306 LW |
2277 | } |
2278 | return newSVOP(OP_CONST, 0, sv); | |
2279 | } | |
aeea060c | 2280 | |
79072805 | 2281 | nope: |
22c35a8c | 2282 | if (!(PL_opargs[type] & OA_OTHERINT)) |
79072805 | 2283 | return o; |
79072805 | 2284 | |
3280af22 | 2285 | if (!(PL_hints & HINT_INTEGER)) { |
4bb9f687 GS |
2286 | if (type == OP_MODULO |
2287 | || type == OP_DIVIDE | |
2288 | || !(o->op_flags & OPf_KIDS)) | |
2289 | { | |
85e6fe83 | 2290 | return o; |
4bb9f687 | 2291 | } |
85e6fe83 LW |
2292 | |
2293 | for (curop = ((UNOP*)o)->op_first; curop; curop = curop->op_sibling) { | |
2294 | if (curop->op_type == OP_CONST) { | |
b1cb66bf | 2295 | if (SvIOK(((SVOP*)curop)->op_sv)) |
85e6fe83 LW |
2296 | continue; |
2297 | return o; | |
2298 | } | |
22c35a8c | 2299 | if (PL_opargs[curop->op_type] & OA_RETINTEGER) |
79072805 LW |
2300 | continue; |
2301 | return o; | |
2302 | } | |
22c35a8c | 2303 | o->op_ppaddr = PL_ppaddr[++(o->op_type)]; |
79072805 LW |
2304 | } |
2305 | ||
79072805 LW |
2306 | return o; |
2307 | } | |
2308 | ||
2309 | OP * | |
864dbfa3 | 2310 | Perl_gen_constant_list(pTHX_ register OP *o) |
79072805 | 2311 | { |
11343788 | 2312 | dTHR; |
79072805 | 2313 | register OP *curop; |
3280af22 | 2314 | I32 oldtmps_floor = PL_tmps_floor; |
79072805 | 2315 | |
a0d0e21e | 2316 | list(o); |
3280af22 | 2317 | if (PL_error_count) |
a0d0e21e LW |
2318 | return o; /* Don't attempt to run with errors */ |
2319 | ||
533c011a | 2320 | PL_op = curop = LINKLIST(o); |
a0d0e21e | 2321 | o->op_next = 0; |
7d4045d4 | 2322 | peep(curop); |
cea2e8a9 GS |
2323 | pp_pushmark(); |
2324 | CALLRUNOPS(aTHX); | |
533c011a | 2325 | PL_op = curop; |
cea2e8a9 | 2326 | pp_anonlist(); |
3280af22 | 2327 | PL_tmps_floor = oldtmps_floor; |
79072805 LW |
2328 | |
2329 | o->op_type = OP_RV2AV; | |
22c35a8c | 2330 | o->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
79072805 | 2331 | curop = ((UNOP*)o)->op_first; |
3280af22 | 2332 | ((UNOP*)o)->op_first = newSVOP(OP_CONST, 0, SvREFCNT_inc(*PL_stack_sp--)); |
79072805 | 2333 | op_free(curop); |
79072805 LW |
2334 | linklist(o); |
2335 | return list(o); | |
2336 | } | |
2337 | ||
2338 | OP * | |
864dbfa3 | 2339 | Perl_convert(pTHX_ I32 type, I32 flags, OP *o) |
79072805 LW |
2340 | { |
2341 | OP *kid; | |
a0d0e21e | 2342 | OP *last = 0; |
79072805 | 2343 | |
11343788 MB |
2344 | if (!o || o->op_type != OP_LIST) |
2345 | o = newLISTOP(OP_LIST, 0, o, Nullop); | |
748a9306 | 2346 | else |
5dc0d613 | 2347 | o->op_flags &= ~OPf_WANT; |
79072805 | 2348 | |
22c35a8c | 2349 | if (!(PL_opargs[type] & OA_MARK)) |
11343788 | 2350 | null(cLISTOPo->op_first); |
8990e307 | 2351 | |
11343788 | 2352 | o->op_type = type; |
22c35a8c | 2353 | o->op_ppaddr = PL_ppaddr[type]; |
11343788 | 2354 | o->op_flags |= flags; |
79072805 | 2355 | |
11343788 MB |
2356 | o = CHECKOP(type, o); |
2357 | if (o->op_type != type) | |
2358 | return o; | |
79072805 | 2359 | |
11343788 | 2360 | if (cLISTOPo->op_children < 7) { |
79072805 | 2361 | /* XXX do we really need to do this if we're done appending?? */ |
11343788 | 2362 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
79072805 | 2363 | last = kid; |
11343788 | 2364 | cLISTOPo->op_last = last; /* in case check substituted last arg */ |
79072805 LW |
2365 | } |
2366 | ||
11343788 | 2367 | return fold_constants(o); |
79072805 LW |
2368 | } |
2369 | ||
2370 | /* List constructors */ | |
2371 | ||
2372 | OP * | |
864dbfa3 | 2373 | Perl_append_elem(pTHX_ I32 type, OP *first, OP *last) |
79072805 LW |
2374 | { |
2375 | if (!first) | |
2376 | return last; | |
8990e307 LW |
2377 | |
2378 | if (!last) | |
79072805 | 2379 | return first; |
8990e307 | 2380 | |
155aba94 GS |
2381 | if (first->op_type != type |
2382 | || (type == OP_LIST && (first->op_flags & OPf_PARENS))) | |
2383 | { | |
2384 | return newLISTOP(type, 0, first, last); | |
2385 | } | |
79072805 | 2386 | |
a0d0e21e LW |
2387 | if (first->op_flags & OPf_KIDS) |
2388 | ((LISTOP*)first)->op_last->op_sibling = last; | |
2389 | else { | |
2390 | first->op_flags |= OPf_KIDS; | |
2391 | ((LISTOP*)first)->op_first = last; | |
2392 | } | |
2393 | ((LISTOP*)first)->op_last = last; | |
2394 | ((LISTOP*)first)->op_children++; | |
2395 | return first; | |
79072805 LW |
2396 | } |
2397 | ||
2398 | OP * | |
864dbfa3 | 2399 | Perl_append_list(pTHX_ I32 type, LISTOP *first, LISTOP *last) |
79072805 LW |
2400 | { |
2401 | if (!first) | |
2402 | return (OP*)last; | |
8990e307 LW |
2403 | |
2404 | if (!last) | |
79072805 | 2405 | return (OP*)first; |
8990e307 LW |
2406 | |
2407 | if (first->op_type != type) | |
79072805 | 2408 | return prepend_elem(type, (OP*)first, (OP*)last); |
8990e307 LW |
2409 | |
2410 | if (last->op_type != type) | |
79072805 LW |
2411 | return append_elem(type, (OP*)first, (OP*)last); |
2412 | ||
2413 | first->op_last->op_sibling = last->op_first; | |
2414 | first->op_last = last->op_last; | |
2415 | first->op_children += last->op_children; | |
2416 | if (first->op_children) | |
acb74605 | 2417 | first->op_flags |= OPf_KIDS; |
b7dc083c NIS |
2418 | |
2419 | #ifdef PL_OP_SLAB_ALLOC | |
2420 | #else | |
2421 | Safefree(last); | |
2422 | #endif | |
79072805 LW |
2423 | return (OP*)first; |
2424 | } | |
2425 | ||
2426 | OP * | |
864dbfa3 | 2427 | Perl_prepend_elem(pTHX_ I32 type, OP *first, OP *last) |
79072805 LW |
2428 | { |
2429 | if (!first) | |
2430 | return last; | |
8990e307 LW |
2431 | |
2432 | if (!last) | |
79072805 | 2433 | return first; |
8990e307 LW |
2434 | |
2435 | if (last->op_type == type) { | |
2436 | if (type == OP_LIST) { /* already a PUSHMARK there */ | |
2437 | first->op_sibling = ((LISTOP*)last)->op_first->op_sibling; | |
2438 | ((LISTOP*)last)->op_first->op_sibling = first; | |
2439 | } | |
2440 | else { | |
2441 | if (!(last->op_flags & OPf_KIDS)) { | |
2442 | ((LISTOP*)last)->op_last = first; | |
2443 | last->op_flags |= OPf_KIDS; | |
2444 | } | |
2445 | first->op_sibling = ((LISTOP*)last)->op_first; | |
2446 | ((LISTOP*)last)->op_first = first; | |
79072805 | 2447 | } |
79072805 LW |
2448 | ((LISTOP*)last)->op_children++; |
2449 | return last; | |
2450 | } | |
2451 | ||
2452 | return newLISTOP(type, 0, first, last); | |
2453 | } | |
2454 | ||
2455 | /* Constructors */ | |
2456 | ||
2457 | OP * | |
864dbfa3 | 2458 | Perl_newNULLLIST(pTHX) |
79072805 | 2459 | { |
8990e307 LW |
2460 | return newOP(OP_STUB, 0); |
2461 | } | |
2462 | ||
2463 | OP * | |
864dbfa3 | 2464 | Perl_force_list(pTHX_ OP *o) |
8990e307 | 2465 | { |
11343788 MB |
2466 | if (!o || o->op_type != OP_LIST) |
2467 | o = newLISTOP(OP_LIST, 0, o, Nullop); | |
2468 | null(o); | |
2469 | return o; | |
79072805 LW |
2470 | } |
2471 | ||
2472 | OP * | |
864dbfa3 | 2473 | Perl_newLISTOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) |
79072805 LW |
2474 | { |
2475 | LISTOP *listop; | |
2476 | ||
b7dc083c | 2477 | NewOp(1101, listop, 1, LISTOP); |
79072805 LW |
2478 | |
2479 | listop->op_type = type; | |
22c35a8c | 2480 | listop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2481 | listop->op_children = (first != 0) + (last != 0); |
2482 | listop->op_flags = flags; | |
79072805 LW |
2483 | |
2484 | if (!last && first) | |
2485 | last = first; | |
2486 | else if (!first && last) | |
2487 | first = last; | |
8990e307 LW |
2488 | else if (first) |
2489 | first->op_sibling = last; | |
79072805 LW |
2490 | listop->op_first = first; |
2491 | listop->op_last = last; | |
8990e307 LW |
2492 | if (type == OP_LIST) { |
2493 | OP* pushop; | |
2494 | pushop = newOP(OP_PUSHMARK, 0); | |
2495 | pushop->op_sibling = first; | |
2496 | listop->op_first = pushop; | |
2497 | listop->op_flags |= OPf_KIDS; | |
2498 | if (!last) | |
2499 | listop->op_last = pushop; | |
2500 | } | |
2501 | else if (listop->op_children) | |
2502 | listop->op_flags |= OPf_KIDS; | |
79072805 LW |
2503 | |
2504 | return (OP*)listop; | |
2505 | } | |
2506 | ||
2507 | OP * | |
864dbfa3 | 2508 | Perl_newOP(pTHX_ I32 type, I32 flags) |
79072805 | 2509 | { |
11343788 | 2510 | OP *o; |
b7dc083c | 2511 | NewOp(1101, o, 1, OP); |
11343788 | 2512 | o->op_type = type; |
22c35a8c | 2513 | o->op_ppaddr = PL_ppaddr[type]; |
11343788 | 2514 | o->op_flags = flags; |
79072805 | 2515 | |
11343788 MB |
2516 | o->op_next = o; |
2517 | o->op_private = 0 + (flags >> 8); | |
22c35a8c | 2518 | if (PL_opargs[type] & OA_RETSCALAR) |
11343788 | 2519 | scalar(o); |
22c35a8c | 2520 | if (PL_opargs[type] & OA_TARGET) |
11343788 MB |
2521 | o->op_targ = pad_alloc(type, SVs_PADTMP); |
2522 | return CHECKOP(type, o); | |
79072805 LW |
2523 | } |
2524 | ||
2525 | OP * | |
864dbfa3 | 2526 | Perl_newUNOP(pTHX_ I32 type, I32 flags, OP *first) |
79072805 LW |
2527 | { |
2528 | UNOP *unop; | |
2529 | ||
93a17b20 | 2530 | if (!first) |
aeea060c | 2531 | first = newOP(OP_STUB, 0); |
22c35a8c | 2532 | if (PL_opargs[type] & OA_MARK) |
8990e307 | 2533 | first = force_list(first); |
93a17b20 | 2534 | |
b7dc083c | 2535 | NewOp(1101, unop, 1, UNOP); |
79072805 | 2536 | unop->op_type = type; |
22c35a8c | 2537 | unop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2538 | unop->op_first = first; |
2539 | unop->op_flags = flags | OPf_KIDS; | |
c07a80fd | 2540 | unop->op_private = 1 | (flags >> 8); |
e50aee73 | 2541 | unop = (UNOP*) CHECKOP(type, unop); |
79072805 LW |
2542 | if (unop->op_next) |
2543 | return (OP*)unop; | |
2544 | ||
a0d0e21e | 2545 | return fold_constants((OP *) unop); |
79072805 LW |
2546 | } |
2547 | ||
2548 | OP * | |
864dbfa3 | 2549 | Perl_newBINOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) |
79072805 LW |
2550 | { |
2551 | BINOP *binop; | |
b7dc083c | 2552 | NewOp(1101, binop, 1, BINOP); |
79072805 LW |
2553 | |
2554 | if (!first) | |
2555 | first = newOP(OP_NULL, 0); | |
2556 | ||
2557 | binop->op_type = type; | |
22c35a8c | 2558 | binop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2559 | binop->op_first = first; |
2560 | binop->op_flags = flags | OPf_KIDS; | |
2561 | if (!last) { | |
2562 | last = first; | |
c07a80fd | 2563 | binop->op_private = 1 | (flags >> 8); |
79072805 LW |
2564 | } |
2565 | else { | |
c07a80fd | 2566 | binop->op_private = 2 | (flags >> 8); |
79072805 LW |
2567 | first->op_sibling = last; |
2568 | } | |
2569 | ||
e50aee73 | 2570 | binop = (BINOP*)CHECKOP(type, binop); |
b162f9ea | 2571 | if (binop->op_next || binop->op_type != type) |
79072805 LW |
2572 | return (OP*)binop; |
2573 | ||
7284ab6f | 2574 | binop->op_last = binop->op_first->op_sibling; |
79072805 | 2575 | |
a0d0e21e | 2576 | return fold_constants((OP *)binop); |
79072805 LW |
2577 | } |
2578 | ||
a0ed51b3 LW |
2579 | static int |
2580 | utf8compare(const void *a, const void *b) | |
2581 | { | |
2582 | int i; | |
2583 | for (i = 0; i < 10; i++) { | |
2584 | if ((*(U8**)a)[i] < (*(U8**)b)[i]) | |
2585 | return -1; | |
2586 | if ((*(U8**)a)[i] > (*(U8**)b)[i]) | |
2587 | return 1; | |
2588 | } | |
2589 | return 0; | |
2590 | } | |
2591 | ||
79072805 | 2592 | OP * |
864dbfa3 | 2593 | Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) |
79072805 | 2594 | { |
79072805 LW |
2595 | SV *tstr = ((SVOP*)expr)->op_sv; |
2596 | SV *rstr = ((SVOP*)repl)->op_sv; | |
463ee0b2 LW |
2597 | STRLEN tlen; |
2598 | STRLEN rlen; | |
ec49126f | 2599 | register U8 *t = (U8*)SvPV(tstr, tlen); |
2600 | register U8 *r = (U8*)SvPV(rstr, rlen); | |
79072805 LW |
2601 | register I32 i; |
2602 | register I32 j; | |
a0ed51b3 | 2603 | I32 del; |
79072805 | 2604 | I32 complement; |
5d06d08e | 2605 | I32 squash; |
79072805 LW |
2606 | register short *tbl; |
2607 | ||
11343788 | 2608 | complement = o->op_private & OPpTRANS_COMPLEMENT; |
a0ed51b3 | 2609 | del = o->op_private & OPpTRANS_DELETE; |
5d06d08e | 2610 | squash = o->op_private & OPpTRANS_SQUASH; |
036b4402 GS |
2611 | |
2612 | if (SvUTF8(tstr)) | |
2613 | o->op_private |= OPpTRANS_FROM_UTF; | |
2614 | ||
2615 | if (SvUTF8(rstr)) | |
2616 | o->op_private |= OPpTRANS_TO_UTF; | |
79072805 | 2617 | |
a0ed51b3 | 2618 | if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { |
79cb57f6 | 2619 | SV* listsv = newSVpvn("# comment\n",10); |
a0ed51b3 LW |
2620 | SV* transv = 0; |
2621 | U8* tend = t + tlen; | |
2622 | U8* rend = r + rlen; | |
2623 | I32 ulen; | |
2624 | U32 tfirst = 1; | |
2625 | U32 tlast = 0; | |
2626 | I32 tdiff; | |
2627 | U32 rfirst = 1; | |
2628 | U32 rlast = 0; | |
2629 | I32 rdiff; | |
2630 | I32 diff; | |
2631 | I32 none = 0; | |
2632 | U32 max = 0; | |
2633 | I32 bits; | |
2634 | I32 grows = 0; | |
2635 | I32 havefinal = 0; | |
2636 | U32 final; | |
a0ed51b3 LW |
2637 | I32 from_utf = o->op_private & OPpTRANS_FROM_UTF; |
2638 | I32 to_utf = o->op_private & OPpTRANS_TO_UTF; | |
2639 | ||
2640 | if (complement) { | |
806e7201 | 2641 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
2642 | U8** cp; |
2643 | UV nextmin = 0; | |
2644 | New(1109, cp, tlen, U8*); | |
2645 | i = 0; | |
79cb57f6 | 2646 | transv = newSVpvn("",0); |
a0ed51b3 LW |
2647 | while (t < tend) { |
2648 | cp[i++] = t; | |
2649 | t += UTF8SKIP(t); | |
2650 | if (*t == 0xff) { | |
2651 | t++; | |
2652 | t += UTF8SKIP(t); | |
2653 | } | |
2654 | } | |
2655 | qsort(cp, i, sizeof(U8*), utf8compare); | |
2656 | for (j = 0; j < i; j++) { | |
2657 | U8 *s = cp[j]; | |
2658 | UV val = utf8_to_uv(s, &ulen); | |
2659 | s += ulen; | |
2660 | diff = val - nextmin; | |
2661 | if (diff > 0) { | |
2662 | t = uv_to_utf8(tmpbuf,nextmin); | |
dfe13c55 | 2663 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2664 | if (diff > 1) { |
2665 | t = uv_to_utf8(tmpbuf, val - 1); | |
2666 | sv_catpvn(transv, "\377", 1); | |
dfe13c55 | 2667 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2668 | } |
2669 | } | |
2670 | if (*s == 0xff) | |
2671 | val = utf8_to_uv(s+1, &ulen); | |
2672 | if (val >= nextmin) | |
2673 | nextmin = val + 1; | |
2674 | } | |
2675 | t = uv_to_utf8(tmpbuf,nextmin); | |
dfe13c55 | 2676 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2677 | t = uv_to_utf8(tmpbuf, 0x7fffffff); |
2678 | sv_catpvn(transv, "\377", 1); | |
dfe13c55 GS |
2679 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
2680 | t = (U8*)SvPVX(transv); | |
a0ed51b3 LW |
2681 | tlen = SvCUR(transv); |
2682 | tend = t + tlen; | |
2683 | } | |
2684 | else if (!rlen && !del) { | |
2685 | r = t; rlen = tlen; rend = tend; | |
4757a243 LW |
2686 | } |
2687 | if (!squash) { | |
12ae5dfc JH |
2688 | if (t == r || |
2689 | (tlen == rlen && memEQ((char *)t, (char *)r, tlen))) | |
01ec43d0 | 2690 | { |
4757a243 | 2691 | o->op_private |= OPpTRANS_IDENTICAL; |
01ec43d0 | 2692 | } |
a0ed51b3 LW |
2693 | } |
2694 | ||
2695 | while (t < tend || tfirst <= tlast) { | |
2696 | /* see if we need more "t" chars */ | |
2697 | if (tfirst > tlast) { | |
2698 | tfirst = (I32)utf8_to_uv(t, &ulen); | |
2699 | t += ulen; | |
2700 | if (t < tend && *t == 0xff) { /* illegal utf8 val indicates range */ | |
2701 | tlast = (I32)utf8_to_uv(++t, &ulen); | |
2702 | t += ulen; | |
2703 | } | |
2704 | else | |
2705 | tlast = tfirst; | |
2706 | } | |
2707 | ||
2708 | /* now see if we need more "r" chars */ | |
2709 | if (rfirst > rlast) { | |
2710 | if (r < rend) { | |
2711 | rfirst = (I32)utf8_to_uv(r, &ulen); | |
2712 | r += ulen; | |
2713 | if (r < rend && *r == 0xff) { /* illegal utf8 val indicates range */ | |
2714 | rlast = (I32)utf8_to_uv(++r, &ulen); | |
2715 | r += ulen; | |
2716 | } | |
2717 | else | |
2718 | rlast = rfirst; | |
2719 | } | |
2720 | else { | |
2721 | if (!havefinal++) | |
2722 | final = rlast; | |
2723 | rfirst = rlast = 0xffffffff; | |
2724 | } | |
2725 | } | |
2726 | ||
2727 | /* now see which range will peter our first, if either. */ | |
2728 | tdiff = tlast - tfirst; | |
2729 | rdiff = rlast - rfirst; | |
2730 | ||
2731 | if (tdiff <= rdiff) | |
2732 | diff = tdiff; | |
2733 | else | |
2734 | diff = rdiff; | |
2735 | ||
2736 | if (rfirst == 0xffffffff) { | |
2737 | diff = tdiff; /* oops, pretend rdiff is infinite */ | |
2738 | if (diff > 0) | |
894356b3 GS |
2739 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t%04lx\tXXXX\n", |
2740 | (long)tfirst, (long)tlast); | |
a0ed51b3 | 2741 | else |
894356b3 | 2742 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t\tXXXX\n", (long)tfirst); |
a0ed51b3 LW |
2743 | } |
2744 | else { | |
2745 | if (diff > 0) | |
894356b3 GS |
2746 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t%04lx\t%04lx\n", |
2747 | (long)tfirst, (long)(tfirst + diff), | |
2748 | (long)rfirst); | |
a0ed51b3 | 2749 | else |
894356b3 GS |
2750 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t\t%04lx\n", |
2751 | (long)tfirst, (long)rfirst); | |
a0ed51b3 LW |
2752 | |
2753 | if (rfirst + diff > max) | |
2754 | max = rfirst + diff; | |
2755 | rfirst += diff + 1; | |
2756 | if (!grows) { | |
2757 | if (rfirst <= 0x80) | |
2758 | ; | |
2759 | else if (rfirst <= 0x800) | |
2760 | grows |= (tfirst < 0x80); | |
2761 | else if (rfirst <= 0x10000) | |
2762 | grows |= (tfirst < 0x800); | |
2763 | else if (rfirst <= 0x200000) | |
2764 | grows |= (tfirst < 0x10000); | |
2765 | else if (rfirst <= 0x4000000) | |
2766 | grows |= (tfirst < 0x200000); | |
2767 | else if (rfirst <= 0x80000000) | |
2768 | grows |= (tfirst < 0x4000000); | |
2769 | } | |
2770 | } | |
2771 | tfirst += diff + 1; | |
2772 | } | |
2773 | ||
2774 | none = ++max; | |
2775 | if (del) | |
2776 | del = ++max; | |
2777 | ||
2778 | if (max > 0xffff) | |
2779 | bits = 32; | |
2780 | else if (max > 0xff) | |
2781 | bits = 16; | |
2782 | else | |
2783 | bits = 8; | |
2784 | ||
2785 | cSVOPo->op_sv = (SV*)swash_init("utf8", "", listsv, bits, none); | |
2786 | SvREFCNT_dec(listsv); | |
2787 | if (transv) | |
2788 | SvREFCNT_dec(transv); | |
2789 | ||
2790 | if (!del && havefinal) | |
b448e4fe JH |
2791 | (void)hv_store((HV*)SvRV((cSVOPo->op_sv)), "FINAL", 5, |
2792 | newSVuv((UV)final), 0); | |
a0ed51b3 LW |
2793 | |
2794 | if (grows && to_utf) | |
2795 | o->op_private |= OPpTRANS_GROWS; | |
2796 | ||
2797 | op_free(expr); | |
2798 | op_free(repl); | |
2799 | return o; | |
2800 | } | |
2801 | ||
2802 | tbl = (short*)cPVOPo->op_pv; | |
79072805 LW |
2803 | if (complement) { |
2804 | Zero(tbl, 256, short); | |
2805 | for (i = 0; i < tlen; i++) | |
ec49126f | 2806 | tbl[t[i]] = -1; |
79072805 LW |
2807 | for (i = 0, j = 0; i < 256; i++) { |
2808 | if (!tbl[i]) { | |
2809 | if (j >= rlen) { | |
a0ed51b3 | 2810 | if (del) |
79072805 LW |
2811 | tbl[i] = -2; |
2812 | else if (rlen) | |
ec49126f | 2813 | tbl[i] = r[j-1]; |
79072805 LW |
2814 | else |
2815 | tbl[i] = i; | |
2816 | } | |
2817 | else | |
ec49126f | 2818 | tbl[i] = r[j++]; |
79072805 LW |
2819 | } |
2820 | } | |
2821 | } | |
2822 | else { | |
a0ed51b3 | 2823 | if (!rlen && !del) { |
79072805 | 2824 | r = t; rlen = tlen; |
5d06d08e | 2825 | if (!squash) |
4757a243 | 2826 | o->op_private |= OPpTRANS_IDENTICAL; |
79072805 LW |
2827 | } |
2828 | for (i = 0; i < 256; i++) | |
2829 | tbl[i] = -1; | |
2830 | for (i = 0, j = 0; i < tlen; i++,j++) { | |
2831 | if (j >= rlen) { | |
a0ed51b3 | 2832 | if (del) { |
ec49126f | 2833 | if (tbl[t[i]] == -1) |
2834 | tbl[t[i]] = -2; | |
79072805 LW |
2835 | continue; |
2836 | } | |
2837 | --j; | |
2838 | } | |
ec49126f | 2839 | if (tbl[t[i]] == -1) |
2840 | tbl[t[i]] = r[j]; | |
79072805 LW |
2841 | } |
2842 | } | |
2843 | op_free(expr); | |
2844 | op_free(repl); | |
2845 | ||
11343788 | 2846 | return o; |
79072805 LW |
2847 | } |
2848 | ||
2849 | OP * | |
864dbfa3 | 2850 | Perl_newPMOP(pTHX_ I32 type, I32 flags) |
79072805 | 2851 | { |
11343788 | 2852 | dTHR; |
79072805 LW |
2853 | PMOP *pmop; |
2854 | ||
b7dc083c | 2855 | NewOp(1101, pmop, 1, PMOP); |
79072805 | 2856 | pmop->op_type = type; |
22c35a8c | 2857 | pmop->op_ppaddr = PL_ppaddr[type]; |
79072805 | 2858 | pmop->op_flags = flags; |
c07a80fd | 2859 | pmop->op_private = 0 | (flags >> 8); |
79072805 | 2860 | |
3280af22 | 2861 | if (PL_hints & HINT_RE_TAINT) |
b3eb6a9b | 2862 | pmop->op_pmpermflags |= PMf_RETAINT; |
3280af22 | 2863 | if (PL_hints & HINT_LOCALE) |
b3eb6a9b GS |
2864 | pmop->op_pmpermflags |= PMf_LOCALE; |
2865 | pmop->op_pmflags = pmop->op_pmpermflags; | |
36477c24 | 2866 | |
79072805 | 2867 | /* link into pm list */ |
3280af22 NIS |
2868 | if (type != OP_TRANS && PL_curstash) { |
2869 | pmop->op_pmnext = HvPMROOT(PL_curstash); | |
2870 | HvPMROOT(PL_curstash) = pmop; | |
79072805 LW |
2871 | } |
2872 | ||
2873 | return (OP*)pmop; | |
2874 | } | |
2875 | ||
2876 | OP * | |
864dbfa3 | 2877 | Perl_pmruntime(pTHX_ OP *o, OP *expr, OP *repl) |
79072805 | 2878 | { |
5c0ca799 | 2879 | dTHR; |
79072805 LW |
2880 | PMOP *pm; |
2881 | LOGOP *rcop; | |
ce862d02 | 2882 | I32 repl_has_vars = 0; |
79072805 | 2883 | |
11343788 MB |
2884 | if (o->op_type == OP_TRANS) |
2885 | return pmtrans(o, expr, repl); | |
79072805 | 2886 | |
3280af22 | 2887 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 | 2888 | pm = (PMOP*)o; |
79072805 LW |
2889 | |
2890 | if (expr->op_type == OP_CONST) { | |
463ee0b2 | 2891 | STRLEN plen; |
79072805 | 2892 | SV *pat = ((SVOP*)expr)->op_sv; |
463ee0b2 | 2893 | char *p = SvPV(pat, plen); |
11343788 | 2894 | if ((o->op_flags & OPf_SPECIAL) && strEQ(p, " ")) { |
93a17b20 | 2895 | sv_setpvn(pat, "\\s+", 3); |
463ee0b2 | 2896 | p = SvPV(pat, plen); |
79072805 LW |
2897 | pm->op_pmflags |= PMf_SKIPWHITE; |
2898 | } | |
393fec97 | 2899 | if ((PL_hints & HINT_UTF8) || (SvUTF8(pat) && !(PL_hints & HINT_BYTE))) |
7e2040f0 | 2900 | pm->op_pmdynflags |= PMdf_UTF8; |
cea2e8a9 | 2901 | pm->op_pmregexp = CALLREGCOMP(aTHX_ p, p + plen, pm); |
aeea060c | 2902 | if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
85e6fe83 | 2903 | pm->op_pmflags |= PMf_WHITE; |
79072805 LW |
2904 | op_free(expr); |
2905 | } | |
2906 | else { | |
393fec97 GS |
2907 | if (PL_hints & HINT_UTF8) |
2908 | pm->op_pmdynflags |= PMdf_UTF8; | |
3280af22 NIS |
2909 | if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) |
2910 | expr = newUNOP((!(PL_hints & HINT_RE_EVAL) | |
2cd61cdb IZ |
2911 | ? OP_REGCRESET |
2912 | : OP_REGCMAYBE),0,expr); | |
463ee0b2 | 2913 | |
b7dc083c | 2914 | NewOp(1101, rcop, 1, LOGOP); |
79072805 | 2915 | rcop->op_type = OP_REGCOMP; |
22c35a8c | 2916 | rcop->op_ppaddr = PL_ppaddr[OP_REGCOMP]; |
79072805 | 2917 | rcop->op_first = scalar(expr); |
3280af22 | 2918 | rcop->op_flags |= ((PL_hints & HINT_RE_EVAL) |
2cd61cdb IZ |
2919 | ? (OPf_SPECIAL | OPf_KIDS) |
2920 | : OPf_KIDS); | |
79072805 | 2921 | rcop->op_private = 1; |
11343788 | 2922 | rcop->op_other = o; |
79072805 LW |
2923 | |
2924 | /* establish postfix order */ | |
3280af22 | 2925 | if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) { |
463ee0b2 LW |
2926 | LINKLIST(expr); |
2927 | rcop->op_next = expr; | |
2928 | ((UNOP*)expr)->op_first->op_next = (OP*)rcop; | |
2929 | } | |
2930 | else { | |
2931 | rcop->op_next = LINKLIST(expr); | |
2932 | expr->op_next = (OP*)rcop; | |
2933 | } | |
79072805 | 2934 | |
11343788 | 2935 | prepend_elem(o->op_type, scalar((OP*)rcop), o); |
79072805 LW |
2936 | } |
2937 | ||
2938 | if (repl) { | |
748a9306 | 2939 | OP *curop; |
0244c3a4 | 2940 | if (pm->op_pmflags & PMf_EVAL) { |
748a9306 | 2941 | curop = 0; |
57843af0 GS |
2942 | if (CopLINE(PL_curcop) < PL_multi_end) |
2943 | CopLINE_set(PL_curcop, PL_multi_end); | |
0244c3a4 | 2944 | } |
554b3eca | 2945 | #ifdef USE_THREADS |
2faa37cc | 2946 | else if (repl->op_type == OP_THREADSV |
554b3eca | 2947 | && strchr("&`'123456789+", |
533c011a | 2948 | PL_threadsv_names[repl->op_targ])) |
554b3eca MB |
2949 | { |
2950 | curop = 0; | |
2951 | } | |
2952 | #endif /* USE_THREADS */ | |
748a9306 LW |
2953 | else if (repl->op_type == OP_CONST) |
2954 | curop = repl; | |
79072805 | 2955 | else { |
79072805 LW |
2956 | OP *lastop = 0; |
2957 | for (curop = LINKLIST(repl); curop!=repl; curop = LINKLIST(curop)) { | |
22c35a8c | 2958 | if (PL_opargs[curop->op_type] & OA_DANGEROUS) { |
554b3eca | 2959 | #ifdef USE_THREADS |
ce862d02 IZ |
2960 | if (curop->op_type == OP_THREADSV) { |
2961 | repl_has_vars = 1; | |
be949f6f | 2962 | if (strchr("&`'123456789+", curop->op_private)) |
ce862d02 | 2963 | break; |
554b3eca MB |
2964 | } |
2965 | #else | |
79072805 | 2966 | if (curop->op_type == OP_GV) { |
638eceb6 | 2967 | GV *gv = cGVOPx_gv(curop); |
ce862d02 | 2968 | repl_has_vars = 1; |
93a17b20 | 2969 | if (strchr("&`'123456789+", *GvENAME(gv))) |
79072805 LW |
2970 | break; |
2971 | } | |
554b3eca | 2972 | #endif /* USE_THREADS */ |
79072805 LW |
2973 | else if (curop->op_type == OP_RV2CV) |
2974 | break; | |
2975 | else if (curop->op_type == OP_RV2SV || | |
2976 | curop->op_type == OP_RV2AV || | |
2977 | curop->op_type == OP_RV2HV || | |
2978 | curop->op_type == OP_RV2GV) { | |
2979 | if (lastop && lastop->op_type != OP_GV) /*funny deref?*/ | |
2980 | break; | |
2981 | } | |
748a9306 LW |
2982 | else if (curop->op_type == OP_PADSV || |
2983 | curop->op_type == OP_PADAV || | |
2984 | curop->op_type == OP_PADHV || | |
554b3eca | 2985 | curop->op_type == OP_PADANY) { |
ce862d02 | 2986 | repl_has_vars = 1; |
748a9306 | 2987 | } |
1167e5da SM |
2988 | else if (curop->op_type == OP_PUSHRE) |
2989 | ; /* Okay here, dangerous in newASSIGNOP */ | |
79072805 LW |
2990 | else |
2991 | break; | |
2992 | } | |
2993 | lastop = curop; | |
2994 | } | |
748a9306 | 2995 | } |
ce862d02 IZ |
2996 | if (curop == repl |
2997 | && !(repl_has_vars | |
2998 | && (!pm->op_pmregexp | |
2999 | || pm->op_pmregexp->reganch & ROPT_EVAL_SEEN))) { | |
748a9306 | 3000 | pm->op_pmflags |= PMf_CONST; /* const for long enough */ |
4633a7c4 | 3001 | pm->op_pmpermflags |= PMf_CONST; /* const for long enough */ |
11343788 | 3002 | prepend_elem(o->op_type, scalar(repl), o); |
748a9306 LW |
3003 | } |
3004 | else { | |
ce862d02 IZ |
3005 | if (curop == repl && !pm->op_pmregexp) { /* Has variables. */ |
3006 | pm->op_pmflags |= PMf_MAYBE_CONST; | |
3007 | pm->op_pmpermflags |= PMf_MAYBE_CONST; | |
3008 | } | |
b7dc083c | 3009 | NewOp(1101, rcop, 1, LOGOP); |
748a9306 | 3010 | rcop->op_type = OP_SUBSTCONT; |
22c35a8c | 3011 | rcop->op_ppaddr = PL_ppaddr[OP_SUBSTCONT]; |
748a9306 LW |
3012 | rcop->op_first = scalar(repl); |
3013 | rcop->op_flags |= OPf_KIDS; | |
3014 | rcop->op_private = 1; | |
11343788 | 3015 | rcop->op_other = o; |
748a9306 LW |
3016 | |
3017 | /* establish postfix order */ | |
3018 | rcop->op_next = LINKLIST(repl); | |
3019 | repl->op_next = (OP*)rcop; | |
3020 | ||
3021 | pm->op_pmreplroot = scalar((OP*)rcop); | |
3022 | pm->op_pmreplstart = LINKLIST(rcop); | |
3023 | rcop->op_next = 0; | |
79072805 LW |
3024 | } |
3025 | } | |
3026 | ||
3027 | return (OP*)pm; | |
3028 | } | |
3029 | ||
3030 | OP * | |
864dbfa3 | 3031 | Perl_newSVOP(pTHX_ I32 type, I32 flags, SV *sv) |
79072805 LW |
3032 | { |
3033 | SVOP *svop; | |
b7dc083c | 3034 | NewOp(1101, svop, 1, SVOP); |
79072805 | 3035 | svop->op_type = type; |
22c35a8c | 3036 | svop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
3037 | svop->op_sv = sv; |
3038 | svop->op_next = (OP*)svop; | |
3039 | svop->op_flags = flags; | |
22c35a8c | 3040 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 3041 | scalar((OP*)svop); |
22c35a8c | 3042 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 3043 | svop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 3044 | return CHECKOP(type, svop); |
79072805 LW |
3045 | } |
3046 | ||
3047 | OP * | |
350de78d GS |
3048 | Perl_newPADOP(pTHX_ I32 type, I32 flags, SV *sv) |
3049 | { | |
3050 | PADOP *padop; | |
3051 | NewOp(1101, padop, 1, PADOP); | |
3052 | padop->op_type = type; | |
3053 | padop->op_ppaddr = PL_ppaddr[type]; | |
3054 | padop->op_padix = pad_alloc(type, SVs_PADTMP); | |
7766f137 | 3055 | SvREFCNT_dec(PL_curpad[padop->op_padix]); |
350de78d | 3056 | PL_curpad[padop->op_padix] = sv; |
7766f137 | 3057 | SvPADTMP_on(sv); |
350de78d GS |
3058 | padop->op_next = (OP*)padop; |
3059 | padop->op_flags = flags; | |
3060 | if (PL_opargs[type] & OA_RETSCALAR) | |
3061 | scalar((OP*)padop); | |
3062 | if (PL_opargs[type] & OA_TARGET) | |
3063 | padop->op_targ = pad_alloc(type, SVs_PADTMP); | |
3064 | return CHECKOP(type, padop); | |
3065 | } | |
3066 | ||
3067 | OP * | |
864dbfa3 | 3068 | Perl_newGVOP(pTHX_ I32 type, I32 flags, GV *gv) |
79072805 | 3069 | { |
11343788 | 3070 | dTHR; |
350de78d | 3071 | #ifdef USE_ITHREADS |
743e66e6 | 3072 | GvIN_PAD_on(gv); |
350de78d GS |
3073 | return newPADOP(type, flags, SvREFCNT_inc(gv)); |
3074 | #else | |
7934575e | 3075 | return newSVOP(type, flags, SvREFCNT_inc(gv)); |
350de78d | 3076 | #endif |
79072805 LW |
3077 | } |
3078 | ||
3079 | OP * | |
864dbfa3 | 3080 | Perl_newPVOP(pTHX_ I32 type, I32 flags, char *pv) |
79072805 LW |
3081 | { |
3082 | PVOP *pvop; | |
b7dc083c | 3083 | NewOp(1101, pvop, 1, PVOP); |
79072805 | 3084 | pvop->op_type = type; |
22c35a8c | 3085 | pvop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
3086 | pvop->op_pv = pv; |
3087 | pvop->op_next = (OP*)pvop; | |
3088 | pvop->op_flags = flags; | |
22c35a8c | 3089 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 3090 | scalar((OP*)pvop); |
22c35a8c | 3091 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 3092 | pvop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 3093 | return CHECKOP(type, pvop); |
79072805 LW |
3094 | } |
3095 | ||
79072805 | 3096 | void |
864dbfa3 | 3097 | Perl_package(pTHX_ OP *o) |
79072805 | 3098 | { |
11343788 | 3099 | dTHR; |
93a17b20 | 3100 | SV *sv; |
79072805 | 3101 | |
3280af22 NIS |
3102 | save_hptr(&PL_curstash); |
3103 | save_item(PL_curstname); | |
11343788 | 3104 | if (o) { |
463ee0b2 LW |
3105 | STRLEN len; |
3106 | char *name; | |
11343788 | 3107 | sv = cSVOPo->op_sv; |
463ee0b2 | 3108 | name = SvPV(sv, len); |
3280af22 NIS |
3109 | PL_curstash = gv_stashpvn(name,len,TRUE); |
3110 | sv_setpvn(PL_curstname, name, len); | |
11343788 | 3111 | op_free(o); |
93a17b20 LW |
3112 | } |
3113 | else { | |
3280af22 NIS |
3114 | sv_setpv(PL_curstname,"<none>"); |
3115 | PL_curstash = Nullhv; | |
93a17b20 | 3116 | } |
7ad382f4 | 3117 | PL_hints |= HINT_BLOCK_SCOPE; |
3280af22 NIS |
3118 | PL_copline = NOLINE; |
3119 | PL_expect = XSTATE; | |
79072805 LW |
3120 | } |
3121 | ||
85e6fe83 | 3122 | void |
864dbfa3 | 3123 | Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *id, OP *arg) |
85e6fe83 | 3124 | { |
a0d0e21e | 3125 | OP *pack; |
a0d0e21e LW |
3126 | OP *rqop; |
3127 | OP *imop; | |
b1cb66bf | 3128 | OP *veop; |
78ca652e | 3129 | GV *gv; |
85e6fe83 | 3130 | |
a0d0e21e | 3131 | if (id->op_type != OP_CONST) |
cea2e8a9 | 3132 | Perl_croak(aTHX_ "Module name must be constant"); |
85e6fe83 | 3133 | |
b1cb66bf | 3134 | veop = Nullop; |
3135 | ||
0f79a09d | 3136 | if (version != Nullop) { |
b1cb66bf | 3137 | SV *vesv = ((SVOP*)version)->op_sv; |
3138 | ||
44dcb63b | 3139 | if (arg == Nullop && !SvNIOKp(vesv)) { |
b1cb66bf | 3140 | arg = version; |
3141 | } | |
3142 | else { | |
3143 | OP *pack; | |
0f79a09d | 3144 | SV *meth; |
b1cb66bf | 3145 | |
44dcb63b | 3146 | if (version->op_type != OP_CONST || !SvNIOKp(vesv)) |
cea2e8a9 | 3147 | Perl_croak(aTHX_ "Version number must be constant number"); |
b1cb66bf | 3148 | |
3149 | /* Make copy of id so we don't free it twice */ | |
3150 | pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv)); | |
3151 | ||
3152 | /* Fake up a method call to VERSION */ | |
0f79a09d GS |
3153 | meth = newSVpvn("VERSION",7); |
3154 | sv_upgrade(meth, SVt_PVIV); | |
155aba94 | 3155 | (void)SvIOK_on(meth); |
0f79a09d | 3156 | PERL_HASH(SvUVX(meth), SvPVX(meth), SvCUR(meth)); |
b1cb66bf | 3157 | veop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, |
3158 | append_elem(OP_LIST, | |
0f79a09d GS |
3159 | prepend_elem(OP_LIST, pack, list(version)), |
3160 | newSVOP(OP_METHOD_NAMED, 0, meth))); | |
b1cb66bf | 3161 | } |
3162 | } | |
aeea060c | 3163 | |
a0d0e21e | 3164 | /* Fake up an import/unimport */ |
4633a7c4 LW |
3165 | if (arg && arg->op_type == OP_STUB) |
3166 | imop = arg; /* no import on explicit () */ | |
44dcb63b | 3167 | else if (SvNIOKp(((SVOP*)id)->op_sv)) { |
b1cb66bf | 3168 | imop = Nullop; /* use 5.0; */ |
3169 | } | |
4633a7c4 | 3170 | else { |
0f79a09d GS |
3171 | SV *meth; |
3172 | ||
4633a7c4 LW |
3173 | /* Make copy of id so we don't free it twice */ |
3174 | pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv)); | |
0f79a09d GS |
3175 | |
3176 | /* Fake up a method call to import/unimport */ | |
3177 | meth = aver ? newSVpvn("import",6) : newSVpvn("unimport", 8);; | |
3178 | sv_upgrade(meth, SVt_PVIV); | |
155aba94 | 3179 | (void)SvIOK_on(meth); |
0f79a09d | 3180 | PERL_HASH(SvUVX(meth), SvPVX(meth), SvCUR(meth)); |
4633a7c4 | 3181 | imop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, |
0f79a09d GS |
3182 | append_elem(OP_LIST, |
3183 | prepend_elem(OP_LIST, pack, list(arg)), | |
3184 | newSVOP(OP_METHOD_NAMED, 0, meth))); | |
4633a7c4 LW |
3185 | } |
3186 | ||
78ca652e GS |
3187 | /* Fake up a require, handle override, if any */ |
3188 | gv = gv_fetchpv("require", FALSE, SVt_PVCV); | |
3189 | if (!(gv && GvIMPORTED_CV(gv))) | |
3190 | gv = gv_fetchpv("CORE::GLOBAL::require", FALSE, SVt_PVCV); | |
3191 | ||
3192 | if (gv && GvIMPORTED_CV(gv)) { | |
3193 | rqop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3194 | append_elem(OP_LIST, id, | |
3195 | scalar(newUNOP(OP_RV2CV, 0, | |
3196 | newGVOP(OP_GV, 0, | |
3197 | gv)))))); | |
3198 | } | |
3199 | else { | |
3200 | rqop = newUNOP(OP_REQUIRE, 0, id); | |
3201 | } | |
a0d0e21e LW |
3202 | |
3203 | /* Fake up the BEGIN {}, which does its thing immediately. */ | |
09bef843 | 3204 | newATTRSUB(floor, |
79cb57f6 | 3205 | newSVOP(OP_CONST, 0, newSVpvn("BEGIN", 5)), |
4633a7c4 | 3206 | Nullop, |
09bef843 | 3207 | Nullop, |
a0d0e21e | 3208 | append_elem(OP_LINESEQ, |
b1cb66bf | 3209 | append_elem(OP_LINESEQ, |
3210 | newSTATEOP(0, Nullch, rqop), | |
3211 | newSTATEOP(0, Nullch, veop)), | |
a0d0e21e | 3212 | newSTATEOP(0, Nullch, imop) )); |
85e6fe83 | 3213 | |
c305c6a0 | 3214 | PL_hints |= HINT_BLOCK_SCOPE; |
3280af22 NIS |
3215 | PL_copline = NOLINE; |
3216 | PL_expect = XSTATE; | |
85e6fe83 LW |
3217 | } |
3218 | ||
e4783991 GS |
3219 | void |
3220 | Perl_load_module(pTHX_ U32 flags, SV *name, SV *ver, ...) | |
3221 | { | |
3222 | va_list args; | |
3223 | va_start(args, ver); | |
3224 | vload_module(flags, name, ver, &args); | |
3225 | va_end(args); | |
3226 | } | |
3227 | ||
3228 | #ifdef PERL_IMPLICIT_CONTEXT | |
3229 | void | |
3230 | Perl_load_module_nocontext(U32 flags, SV *name, SV *ver, ...) | |
3231 | { | |
3232 | dTHX; | |
3233 | va_list args; | |
3234 | va_start(args, ver); | |
3235 | vload_module(flags, name, ver, &args); | |
3236 | va_end(args); | |
3237 | } | |
3238 | #endif | |
3239 | ||
3240 | void | |
3241 | Perl_vload_module(pTHX_ U32 flags, SV *name, SV *ver, va_list *args) | |
3242 | { | |
3243 | OP *modname, *veop, *imop; | |
3244 | ||
3245 | modname = newSVOP(OP_CONST, 0, name); | |
3246 | modname->op_private |= OPpCONST_BARE; | |
3247 | if (ver) { | |
3248 | veop = newSVOP(OP_CONST, 0, ver); | |
3249 | } | |
3250 | else | |
3251 | veop = Nullop; | |
3252 | if (flags & PERL_LOADMOD_NOIMPORT) { | |
3253 | imop = sawparens(newNULLLIST()); | |
3254 | } | |
3255 | else if (flags & PERL_LOADMOD_IMPORT_OPS) { | |
3256 | imop = va_arg(*args, OP*); | |
3257 | } | |
3258 | else { | |
3259 | SV *sv; | |
3260 | imop = Nullop; | |
3261 | sv = va_arg(*args, SV*); | |
3262 | while (sv) { | |
3263 | imop = append_elem(OP_LIST, imop, newSVOP(OP_CONST, 0, sv)); | |
3264 | sv = va_arg(*args, SV*); | |
3265 | } | |
3266 | } | |
81885997 GS |
3267 | { |
3268 | line_t ocopline = PL_copline; | |
3269 | int oexpect = PL_expect; | |
3270 | ||
3271 | utilize(!(flags & PERL_LOADMOD_DENY), start_subparse(FALSE, 0), | |
3272 | veop, modname, imop); | |
3273 | PL_expect = oexpect; | |
3274 | PL_copline = ocopline; | |
3275 | } | |
e4783991 GS |
3276 | } |
3277 | ||
79072805 | 3278 | OP * |
864dbfa3 | 3279 | Perl_dofile(pTHX_ OP *term) |
78ca652e GS |
3280 | { |
3281 | OP *doop; | |
3282 | GV *gv; | |
3283 | ||
3284 | gv = gv_fetchpv("do", FALSE, SVt_PVCV); | |
3285 | if (!(gv && GvIMPORTED_CV(gv))) | |
3286 | gv = gv_fetchpv("CORE::GLOBAL::do", FALSE, SVt_PVCV); | |
3287 | ||
3288 | if (gv && GvIMPORTED_CV(gv)) { | |
3289 | doop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3290 | append_elem(OP_LIST, term, | |
3291 | scalar(newUNOP(OP_RV2CV, 0, | |
3292 | newGVOP(OP_GV, 0, | |
3293 | gv)))))); | |
3294 | } | |
3295 | else { | |
3296 | doop = newUNOP(OP_DOFILE, 0, scalar(term)); | |
3297 | } | |
3298 | return doop; | |
3299 | } | |
3300 | ||
3301 | OP * | |
864dbfa3 | 3302 | Perl_newSLICEOP(pTHX_ I32 flags, OP *subscript, OP *listval) |
79072805 LW |
3303 | { |
3304 | return newBINOP(OP_LSLICE, flags, | |
8990e307 LW |
3305 | list(force_list(subscript)), |
3306 | list(force_list(listval)) ); | |
79072805 LW |
3307 | } |
3308 | ||
76e3520e | 3309 | STATIC I32 |
cea2e8a9 | 3310 | S_list_assignment(pTHX_ register OP *o) |
79072805 | 3311 | { |
11343788 | 3312 | if (!o) |
79072805 LW |
3313 | return TRUE; |
3314 | ||
11343788 MB |
3315 | if (o->op_type == OP_NULL && o->op_flags & OPf_KIDS) |
3316 | o = cUNOPo->op_first; | |
79072805 | 3317 | |
11343788 | 3318 | if (o->op_type == OP_COND_EXPR) { |
1a67a97c SM |
3319 | I32 t = list_assignment(cLOGOPo->op_first->op_sibling); |
3320 | I32 f = list_assignment(cLOGOPo->op_first->op_sibling->op_sibling); | |
79072805 LW |
3321 | |
3322 | if (t && f) | |
3323 | return TRUE; | |
3324 | if (t || f) | |
3325 | yyerror("Assignment to both a list and a scalar"); | |
3326 | return FALSE; | |
3327 | } | |
3328 | ||
11343788 MB |
3329 | if (o->op_type == OP_LIST || o->op_flags & OPf_PARENS || |
3330 | o->op_type == OP_RV2AV || o->op_type == OP_RV2HV || | |
3331 | o->op_type == OP_ASLICE || o->op_type == OP_HSLICE) | |
79072805 LW |
3332 | return TRUE; |
3333 | ||
11343788 | 3334 | if (o->op_type == OP_PADAV || o->op_type == OP_PADHV) |
93a17b20 LW |
3335 | return TRUE; |
3336 | ||
11343788 | 3337 | if (o->op_type == OP_RV2SV) |
79072805 LW |
3338 | return FALSE; |
3339 | ||
3340 | return FALSE; | |
3341 | } | |
3342 | ||
3343 | OP * | |
864dbfa3 | 3344 | Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) |
79072805 | 3345 | { |
11343788 | 3346 | OP *o; |
79072805 | 3347 | |
a0d0e21e LW |
3348 | if (optype) { |
3349 | if (optype == OP_ANDASSIGN || optype == OP_ORASSIGN) { | |
3350 | return newLOGOP(optype, 0, | |
3351 | mod(scalar(left), optype), | |
3352 | newUNOP(OP_SASSIGN, 0, scalar(right))); | |
3353 | } | |
3354 | else { | |
3355 | return newBINOP(optype, OPf_STACKED, | |
3356 | mod(scalar(left), optype), scalar(right)); | |
3357 | } | |
3358 | } | |
3359 | ||
79072805 | 3360 | if (list_assignment(left)) { |
6ee623d5 | 3361 | dTHR; |
10c8fecd GS |
3362 | OP *curop; |
3363 | ||
3280af22 NIS |
3364 | PL_modcount = 0; |
3365 | PL_eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/ | |
463ee0b2 | 3366 | left = mod(left, OP_AASSIGN); |
3280af22 NIS |
3367 | if (PL_eval_start) |
3368 | PL_eval_start = 0; | |
748a9306 | 3369 | else { |
a0d0e21e LW |
3370 | op_free(left); |
3371 | op_free(right); | |
3372 | return Nullop; | |
3373 | } | |
10c8fecd GS |
3374 | curop = list(force_list(left)); |
3375 | o = newBINOP(OP_AASSIGN, flags, list(force_list(right)), curop); | |
11343788 | 3376 | o->op_private = 0 | (flags >> 8); |
10c8fecd GS |
3377 | for (curop = ((LISTOP*)curop)->op_first; |
3378 | curop; curop = curop->op_sibling) | |
3379 | { | |
3380 | if (curop->op_type == OP_RV2HV && | |
3381 | ((UNOP*)curop)->op_first->op_type != OP_GV) { | |
3382 | o->op_private |= OPpASSIGN_HASH; | |
3383 | break; | |
3384 | } | |
3385 | } | |
a0d0e21e | 3386 | if (!(left->op_private & OPpLVAL_INTRO)) { |
11343788 | 3387 | OP *lastop = o; |
3280af22 | 3388 | PL_generation++; |
11343788 | 3389 | for (curop = LINKLIST(o); curop != o; curop = LINKLIST(curop)) { |
22c35a8c | 3390 | if (PL_opargs[curop->op_type] & OA_DANGEROUS) { |
79072805 | 3391 | if (curop->op_type == OP_GV) { |
638eceb6 | 3392 | GV *gv = cGVOPx_gv(curop); |
3280af22 | 3393 | if (gv == PL_defgv || SvCUR(gv) == PL_generation) |
79072805 | 3394 | break; |
3280af22 | 3395 | SvCUR(gv) = PL_generation; |
79072805 | 3396 | } |
748a9306 LW |
3397 | else if (curop->op_type == OP_PADSV || |
3398 | curop->op_type == OP_PADAV || | |
3399 | curop->op_type == OP_PADHV || | |
3400 | curop->op_type == OP_PADANY) { | |
3280af22 | 3401 | SV **svp = AvARRAY(PL_comppad_name); |
8e07c86e | 3402 | SV *sv = svp[curop->op_targ]; |
3280af22 | 3403 | if (SvCUR(sv) == PL_generation) |
748a9306 | 3404 | break; |
3280af22 | 3405 | SvCUR(sv) = PL_generation; /* (SvCUR not used any more) */ |
748a9306 | 3406 | } |
79072805 LW |
3407 | else if (curop->op_type == OP_RV2CV) |
3408 | break; | |
3409 | else if (curop->op_type == OP_RV2SV || | |
3410 | curop->op_type == OP_RV2AV || | |
3411 | curop->op_type == OP_RV2HV || | |
3412 | curop->op_type == OP_RV2GV) { | |
3413 | if (lastop->op_type != OP_GV) /* funny deref? */ | |
3414 | break; | |
3415 | } | |
1167e5da SM |
3416 | else if (curop->op_type == OP_PUSHRE) { |
3417 | if (((PMOP*)curop)->op_pmreplroot) { | |
3418 | GV *gv = (GV*)((PMOP*)curop)->op_pmreplroot; | |
3280af22 | 3419 | if (gv == PL_defgv || SvCUR(gv) == PL_generation) |
1167e5da | 3420 | break; |
3280af22 | 3421 | SvCUR(gv) = PL_generation; |
1167e5da SM |
3422 | } |
3423 | } | |
79072805 LW |
3424 | else |
3425 | break; | |
3426 | } | |
3427 | lastop = curop; | |
3428 | } | |
11343788 | 3429 | if (curop != o) |
10c8fecd | 3430 | o->op_private |= OPpASSIGN_COMMON; |
79072805 | 3431 | } |
c07a80fd | 3432 | if (right && right->op_type == OP_SPLIT) { |
3433 | OP* tmpop; | |
3434 | if ((tmpop = ((LISTOP*)right)->op_first) && | |
3435 | tmpop->op_type == OP_PUSHRE) | |
3436 | { | |
3437 | PMOP *pm = (PMOP*)tmpop; | |
3438 | if (left->op_type == OP_RV2AV && | |
3439 | !(left->op_private & OPpLVAL_INTRO) && | |
11343788 | 3440 | !(o->op_private & OPpASSIGN_COMMON) ) |
c07a80fd | 3441 | { |
3442 | tmpop = ((UNOP*)left)->op_first; | |
3443 | if (tmpop->op_type == OP_GV && !pm->op_pmreplroot) { | |
971a9dd3 GS |
3444 | #ifdef USE_ITHREADS |
3445 | pm->op_pmreplroot = (OP*)cPADOPx(tmpop)->op_padix; | |
3446 | cPADOPx(tmpop)->op_padix = 0; /* steal it */ | |
3447 | #else | |
3448 | pm->op_pmreplroot = (OP*)cSVOPx(tmpop)->op_sv; | |
3449 | cSVOPx(tmpop)->op_sv = Nullsv; /* steal it */ | |
3450 | #endif | |
c07a80fd | 3451 | pm->op_pmflags |= PMf_ONCE; |
11343788 | 3452 | tmpop = cUNOPo->op_first; /* to list (nulled) */ |
c07a80fd | 3453 | tmpop = ((UNOP*)tmpop)->op_first; /* to pushmark */ |
3454 | tmpop->op_sibling = Nullop; /* don't free split */ | |
3455 | right->op_next = tmpop->op_next; /* fix starting loc */ | |
11343788 | 3456 | op_free(o); /* blow off assign */ |
54310121 | 3457 | right->op_flags &= ~OPf_WANT; |
a5f75d66 | 3458 | /* "I don't know and I don't care." */ |
c07a80fd | 3459 | return right; |
3460 | } | |
3461 | } | |
3462 | else { | |
3280af22 | 3463 | if (PL_modcount < 10000 && |
c07a80fd | 3464 | ((LISTOP*)right)->op_last->op_type == OP_CONST) |
3465 | { | |
3466 | SV *sv = ((SVOP*)((LISTOP*)right)->op_last)->op_sv; | |
3467 | if (SvIVX(sv) == 0) | |
3280af22 | 3468 | sv_setiv(sv, PL_modcount+1); |
c07a80fd | 3469 | } |
3470 | } | |
3471 | } | |
3472 | } | |
11343788 | 3473 | return o; |
79072805 LW |
3474 | } |
3475 | if (!right) | |
3476 | right = newOP(OP_UNDEF, 0); | |
3477 | if (right->op_type == OP_READLINE) { | |
3478 | right->op_flags |= OPf_STACKED; | |
463ee0b2 | 3479 | return newBINOP(OP_NULL, flags, mod(scalar(left), OP_SASSIGN), scalar(right)); |
79072805 | 3480 | } |
a0d0e21e | 3481 | else { |
3280af22 | 3482 | PL_eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/ |
11343788 | 3483 | o = newBINOP(OP_SASSIGN, flags, |
463ee0b2 | 3484 | scalar(right), mod(scalar(left), OP_SASSIGN) ); |
3280af22 NIS |
3485 | if (PL_eval_start) |
3486 | PL_eval_start = 0; | |
748a9306 | 3487 | else { |
11343788 | 3488 | op_free(o); |
a0d0e21e LW |
3489 | return Nullop; |
3490 | } | |
3491 | } | |
11343788 | 3492 | return o; |
79072805 LW |
3493 | } |
3494 | ||
3495 | OP * | |
864dbfa3 | 3496 | Perl_newSTATEOP(pTHX_ I32 flags, char *label, OP *o) |
79072805 | 3497 | { |
11343788 | 3498 | dTHR; |
bbce6d69 | 3499 | U32 seq = intro_my(); |
79072805 LW |
3500 | register COP *cop; |
3501 | ||
b7dc083c | 3502 | NewOp(1101, cop, 1, COP); |
57843af0 | 3503 | if (PERLDB_LINE && CopLINE(PL_curcop) && PL_curstash != PL_debstash) { |
8990e307 | 3504 | cop->op_type = OP_DBSTATE; |
22c35a8c | 3505 | cop->op_ppaddr = PL_ppaddr[ OP_DBSTATE ]; |
8990e307 LW |
3506 | } |
3507 | else { | |
3508 | cop->op_type = OP_NEXTSTATE; | |
22c35a8c | 3509 | cop->op_ppaddr = PL_ppaddr[ OP_NEXTSTATE ]; |
8990e307 | 3510 | } |
79072805 | 3511 | cop->op_flags = flags; |
393fec97 | 3512 | cop->op_private = (PL_hints & HINT_BYTE); |
ff0cee69 | 3513 | #ifdef NATIVE_HINTS |
3514 | cop->op_private |= NATIVE_HINTS; | |
3515 | #endif | |
e24b16f9 | 3516 | PL_compiling.op_private = cop->op_private; |
79072805 LW |
3517 | cop->op_next = (OP*)cop; |
3518 | ||
463ee0b2 LW |
3519 | if (label) { |
3520 | cop->cop_label = label; | |
3280af22 | 3521 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 3522 | } |
bbce6d69 | 3523 | cop->cop_seq = seq; |
3280af22 | 3524 | cop->cop_arybase = PL_curcop->cop_arybase; |
0453d815 | 3525 | if (specialWARN(PL_curcop->cop_warnings)) |
599cee73 PM |
3526 | cop->cop_warnings = PL_curcop->cop_warnings ; |
3527 | else | |
3528 | cop->cop_warnings = newSVsv(PL_curcop->cop_warnings) ; | |
3529 | ||
79072805 | 3530 | |
3280af22 | 3531 | if (PL_copline == NOLINE) |
57843af0 | 3532 | CopLINE_set(cop, CopLINE(PL_curcop)); |
79072805 | 3533 | else { |
57843af0 | 3534 | CopLINE_set(cop, PL_copline); |
3280af22 | 3535 | PL_copline = NOLINE; |
79072805 | 3536 | } |
57843af0 | 3537 | #ifdef USE_ITHREADS |
f4dd75d9 | 3538 | CopFILE_set(cop, CopFILE(PL_curcop)); /* XXX share in a pvtable? */ |
57843af0 | 3539 | #else |
f4dd75d9 | 3540 | CopFILEGV_set(cop, CopFILEGV(PL_curcop)); |
57843af0 | 3541 | #endif |
11faa288 | 3542 | CopSTASH_set(cop, PL_curstash); |
79072805 | 3543 | |
3280af22 | 3544 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
cc49e20b | 3545 | SV **svp = av_fetch(CopFILEAV(PL_curcop), (I32)CopLINE(cop), FALSE); |
3280af22 | 3546 | if (svp && *svp != &PL_sv_undef && !SvIOK(*svp)) { |
a0d0e21e | 3547 | (void)SvIOK_on(*svp); |
57b2e452 | 3548 | SvIVX(*svp) = PTR2IV(cop); |
93a17b20 LW |
3549 | } |
3550 | } | |
3551 | ||
11343788 | 3552 | return prepend_elem(OP_LINESEQ, (OP*)cop, o); |
79072805 LW |
3553 | } |
3554 | ||
bbce6d69 | 3555 | /* "Introduce" my variables to visible status. */ |
3556 | U32 | |
864dbfa3 | 3557 | Perl_intro_my(pTHX) |
bbce6d69 | 3558 | { |
3559 | SV **svp; | |
3560 | SV *sv; | |
3561 | I32 i; | |
3562 | ||
3280af22 NIS |
3563 | if (! PL_min_intro_pending) |
3564 | return PL_cop_seqmax; | |
bbce6d69 | 3565 | |
3280af22 NIS |
3566 | svp = AvARRAY(PL_comppad_name); |
3567 | for (i = PL_min_intro_pending; i <= PL_max_intro_pending; i++) { | |
3568 | if ((sv = svp[i]) && sv != &PL_sv_undef && !SvIVX(sv)) { | |
c53d7c7d | 3569 | SvIVX(sv) = PAD_MAX; /* Don't know scope end yet. */ |
65202027 | 3570 | SvNVX(sv) = (NV)PL_cop_seqmax; |
bbce6d69 | 3571 | } |
3572 | } | |
3280af22 NIS |
3573 | PL_min_intro_pending = 0; |
3574 | PL_comppad_name_fill = PL_max_intro_pending; /* Needn't search higher */ | |
3575 | return PL_cop_seqmax++; | |
bbce6d69 | 3576 | } |
3577 | ||
79072805 | 3578 | OP * |
864dbfa3 | 3579 | Perl_newLOGOP(pTHX_ I32 type, I32 flags, OP *first, OP *other) |
79072805 | 3580 | { |
883ffac3 CS |
3581 | return new_logop(type, flags, &first, &other); |
3582 | } | |
3583 | ||
3bd495df | 3584 | STATIC OP * |
cea2e8a9 | 3585 | S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp) |
883ffac3 | 3586 | { |
11343788 | 3587 | dTHR; |
79072805 | 3588 | LOGOP *logop; |
11343788 | 3589 | OP *o; |
883ffac3 CS |
3590 | OP *first = *firstp; |
3591 | OP *other = *otherp; | |
79072805 | 3592 | |
a0d0e21e LW |
3593 | if (type == OP_XOR) /* Not short circuit, but here by precedence. */ |
3594 | return newBINOP(type, flags, scalar(first), scalar(other)); | |
3595 | ||
8990e307 | 3596 | scalarboolean(first); |
79072805 LW |
3597 | /* optimize "!a && b" to "a || b", and "!a || b" to "a && b" */ |
3598 | if (first->op_type == OP_NOT && (first->op_flags & OPf_SPECIAL)) { | |
3599 | if (type == OP_AND || type == OP_OR) { | |
3600 | if (type == OP_AND) | |
3601 | type = OP_OR; | |
3602 | else | |
3603 | type = OP_AND; | |
11343788 | 3604 | o = first; |
883ffac3 | 3605 | first = *firstp = cUNOPo->op_first; |
11343788 MB |
3606 | if (o->op_next) |
3607 | first->op_next = o->op_next; | |
3608 | cUNOPo->op_first = Nullop; | |
3609 | op_free(o); | |
79072805 LW |
3610 | } |
3611 | } | |
3612 | if (first->op_type == OP_CONST) { | |
4673fc70 | 3613 | if (ckWARN(WARN_BAREWORD) && (first->op_private & OPpCONST_BARE)) |
e476b1b5 | 3614 | Perl_warner(aTHX_ WARN_BAREWORD, "Bareword found in conditional"); |
79072805 LW |
3615 | if ((type == OP_AND) == (SvTRUE(((SVOP*)first)->op_sv))) { |
3616 | op_free(first); | |
883ffac3 | 3617 | *firstp = Nullop; |
79072805 LW |
3618 | return other; |
3619 | } | |
3620 | else { | |
3621 | op_free(other); | |
883ffac3 | 3622 | *otherp = Nullop; |
79072805 LW |
3623 | return first; |
3624 | } | |
3625 | } | |
3626 | else if (first->op_type == OP_WANTARRAY) { | |
3627 | if (type == OP_AND) | |
3628 | list(other); | |
3629 | else | |
3630 | scalar(other); | |
3631 | } | |
e476b1b5 | 3632 | else if (ckWARN(WARN_MISC) && (first->op_flags & OPf_KIDS)) { |
a6006777 | 3633 | OP *k1 = ((UNOP*)first)->op_first; |
3634 | OP *k2 = k1->op_sibling; | |
3635 | OPCODE warnop = 0; | |
3636 | switch (first->op_type) | |
3637 | { | |
3638 | case OP_NULL: | |
3639 | if (k2 && k2->op_type == OP_READLINE | |
3640 | && (k2->op_flags & OPf_STACKED) | |
55d729e4 | 3641 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) |
72b16652 | 3642 | { |
a6006777 | 3643 | warnop = k2->op_type; |
72b16652 | 3644 | } |
a6006777 | 3645 | break; |
3646 | ||
3647 | case OP_SASSIGN: | |
68dc0745 | 3648 | if (k1->op_type == OP_READDIR |
3649 | || k1->op_type == OP_GLOB | |
72b16652 | 3650 | || (k1->op_type == OP_NULL && k1->op_targ == OP_GLOB) |
68dc0745 | 3651 | || k1->op_type == OP_EACH) |
72b16652 GS |
3652 | { |
3653 | warnop = ((k1->op_type == OP_NULL) | |
3654 | ? k1->op_targ : k1->op_type); | |
3655 | } | |
a6006777 | 3656 | break; |
3657 | } | |
8ebc5c01 | 3658 | if (warnop) { |
57843af0 GS |
3659 | line_t oldline = CopLINE(PL_curcop); |
3660 | CopLINE_set(PL_curcop, PL_copline); | |
e476b1b5 | 3661 | Perl_warner(aTHX_ WARN_MISC, |
599cee73 | 3662 | "Value of %s%s can be \"0\"; test with defined()", |
22c35a8c | 3663 | PL_op_desc[warnop], |
68dc0745 | 3664 | ((warnop == OP_READLINE || warnop == OP_GLOB) |
3665 | ? " construct" : "() operator")); | |
57843af0 | 3666 | CopLINE_set(PL_curcop, oldline); |
8ebc5c01 | 3667 | } |
a6006777 | 3668 | } |
79072805 LW |
3669 | |
3670 | if (!other) | |
3671 | return first; | |
3672 | ||
a0d0e21e LW |
3673 | if (type == OP_ANDASSIGN || type == OP_ORASSIGN) |
3674 | other->op_private |= OPpASSIGN_BACKWARDS; /* other is an OP_SASSIGN */ | |
3675 | ||
b7dc083c | 3676 | NewOp(1101, logop, 1, LOGOP); |
79072805 LW |
3677 | |
3678 | logop->op_type = type; | |
22c35a8c | 3679 | logop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
3680 | logop->op_first = first; |
3681 | logop->op_flags = flags | OPf_KIDS; | |
3682 | logop->op_other = LINKLIST(other); | |
c07a80fd | 3683 | logop->op_private = 1 | (flags >> 8); |
79072805 LW |
3684 | |
3685 | /* establish postfix order */ | |
3686 | logop->op_next = LINKLIST(first); | |
3687 | first->op_next = (OP*)logop; | |
3688 | first->op_sibling = other; | |
3689 | ||
11343788 MB |
3690 | o = newUNOP(OP_NULL, 0, (OP*)logop); |
3691 | other->op_next = o; | |
79072805 | 3692 | |
11343788 | 3693 | return o; |
79072805 LW |
3694 | } |
3695 | ||
3696 | OP * | |
864dbfa3 | 3697 | Perl_newCONDOP(pTHX_ I32 flags, OP *first, OP *trueop, OP *falseop) |
79072805 | 3698 | { |
11343788 | 3699 | dTHR; |
1a67a97c SM |
3700 | LOGOP *logop; |
3701 | OP *start; | |
11343788 | 3702 | OP *o; |
79072805 | 3703 | |
b1cb66bf | 3704 | if (!falseop) |
3705 | return newLOGOP(OP_AND, 0, first, trueop); | |
3706 | if (!trueop) | |
3707 | return newLOGOP(OP_OR, 0, first, falseop); | |
79072805 | 3708 | |
8990e307 | 3709 | scalarboolean(first); |
79072805 LW |
3710 | if (first->op_type == OP_CONST) { |
3711 | if (SvTRUE(((SVOP*)first)->op_sv)) { | |
3712 | op_free(first); | |
b1cb66bf | 3713 | op_free(falseop); |
3714 | return trueop; | |
79072805 LW |
3715 | } |
3716 | else { | |
3717 | op_free(first); | |
b1cb66bf | 3718 | op_free(trueop); |
3719 | return falseop; | |
79072805 LW |
3720 | } |
3721 | } | |
3722 | else if (first->op_type == OP_WANTARRAY) { | |
b1cb66bf | 3723 | list(trueop); |
3724 | scalar(falseop); | |
79072805 | 3725 | } |
1a67a97c SM |
3726 | NewOp(1101, logop, 1, LOGOP); |
3727 | logop->op_type = OP_COND_EXPR; | |
3728 | logop->op_ppaddr = PL_ppaddr[OP_COND_EXPR]; | |
3729 | logop->op_first = first; | |
3730 | logop->op_flags = flags | OPf_KIDS; | |
3731 | logop->op_private = 1 | (flags >> 8); | |
3732 | logop->op_other = LINKLIST(trueop); | |
3733 | logop->op_next = LINKLIST(falseop); | |
79072805 | 3734 | |
79072805 LW |
3735 | |
3736 | /* establish postfix order */ | |
1a67a97c SM |
3737 | start = LINKLIST(first); |
3738 | first->op_next = (OP*)logop; | |
79072805 | 3739 | |
b1cb66bf | 3740 | first->op_sibling = trueop; |
3741 | trueop->op_sibling = falseop; | |
1a67a97c | 3742 | o = newUNOP(OP_NULL, 0, (OP*)logop); |
79072805 | 3743 | |
1a67a97c | 3744 | trueop->op_next = falseop->op_next = o; |
79072805 | 3745 | |
1a67a97c | 3746 | o->op_next = start; |
11343788 | 3747 | return o; |
79072805 LW |
3748 | } |
3749 | ||
3750 | OP * | |
864dbfa3 | 3751 | Perl_newRANGE(pTHX_ I32 flags, OP *left, OP *right) |
79072805 | 3752 | { |
b35b2403 | 3753 | dTHR; |
1a67a97c | 3754 | LOGOP *range; |
79072805 LW |
3755 | OP *flip; |
3756 | OP *flop; | |
1a67a97c | 3757 | OP *leftstart; |
11343788 | 3758 | OP *o; |
79072805 | 3759 | |
1a67a97c | 3760 | NewOp(1101, range, 1, LOGOP); |
79072805 | 3761 | |
1a67a97c SM |
3762 | range->op_type = OP_RANGE; |
3763 | range->op_ppaddr = PL_ppaddr[OP_RANGE]; | |
3764 | range->op_first = left; | |
3765 | range->op_flags = OPf_KIDS; | |
3766 | leftstart = LINKLIST(left); | |
3767 | range->op_other = LINKLIST(right); | |
3768 | range->op_private = 1 | (flags >> 8); | |
79072805 LW |
3769 | |
3770 | left->op_sibling = right; | |
3771 | ||
1a67a97c SM |
3772 | range->op_next = (OP*)range; |
3773 | flip = newUNOP(OP_FLIP, flags, (OP*)range); | |
79072805 | 3774 | flop = newUNOP(OP_FLOP, 0, flip); |
11343788 | 3775 | o = newUNOP(OP_NULL, 0, flop); |
79072805 | 3776 | linklist(flop); |
1a67a97c | 3777 | range->op_next = leftstart; |
79072805 LW |
3778 | |
3779 | left->op_next = flip; | |
3780 | right->op_next = flop; | |
3781 | ||
1a67a97c SM |
3782 | range->op_targ = pad_alloc(OP_RANGE, SVs_PADMY); |
3783 | sv_upgrade(PAD_SV(range->op_targ), SVt_PVNV); | |
ed6116ce | 3784 | flip->op_targ = pad_alloc(OP_RANGE, SVs_PADMY); |
79072805 LW |
3785 | sv_upgrade(PAD_SV(flip->op_targ), SVt_PVNV); |
3786 | ||
3787 | flip->op_private = left->op_type == OP_CONST ? OPpFLIP_LINENUM : 0; | |
3788 | flop->op_private = right->op_type == OP_CONST ? OPpFLIP_LINENUM : 0; | |
3789 | ||
11343788 | 3790 | flip->op_next = o; |
79072805 | 3791 | if (!flip->op_private || !flop->op_private) |
11343788 | 3792 | linklist(o); /* blow off optimizer unless constant */ |
79072805 | 3793 | |
11343788 | 3794 | return o; |
79072805 LW |
3795 | } |
3796 | ||
3797 | OP * | |
864dbfa3 | 3798 | Perl_newLOOPOP(pTHX_ I32 flags, I32 debuggable, OP *expr, OP *block) |
79072805 | 3799 | { |
11343788 | 3800 | dTHR; |
463ee0b2 | 3801 | OP* listop; |
11343788 | 3802 | OP* o; |
463ee0b2 | 3803 | int once = block && block->op_flags & OPf_SPECIAL && |
a0d0e21e | 3804 | (block->op_type == OP_ENTERSUB || block->op_type == OP_NULL); |
93a17b20 | 3805 | |
463ee0b2 LW |
3806 | if (expr) { |
3807 | if (once && expr->op_type == OP_CONST && !SvTRUE(((SVOP*)expr)->op_sv)) | |
3808 | return block; /* do {} while 0 does once */ | |
fb73857a | 3809 | if (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB |
3810 | || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB)) { | |
774d564b | 3811 | expr = newUNOP(OP_DEFINED, 0, |
54b9620d | 3812 | newASSIGNOP(0, newDEFSVOP(), 0, expr) ); |
55d729e4 GS |
3813 | } else if (expr->op_flags & OPf_KIDS) { |
3814 | OP *k1 = ((UNOP*)expr)->op_first; | |
3815 | OP *k2 = (k1) ? k1->op_sibling : NULL; | |
3816 | switch (expr->op_type) { | |
3817 | case OP_NULL: | |
3818 | if (k2 && k2->op_type == OP_READLINE | |
3819 | && (k2->op_flags & OPf_STACKED) | |
3820 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) | |
3821 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3822 | break; | |
3823 | ||
3824 | case OP_SASSIGN: | |
3825 | if (k1->op_type == OP_READDIR | |
3826 | || k1->op_type == OP_GLOB | |
72b16652 | 3827 | || (k1->op_type == OP_NULL && k1->op_targ == OP_NULL) |
55d729e4 GS |
3828 | || k1->op_type == OP_EACH) |
3829 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3830 | break; | |
3831 | } | |
774d564b | 3832 | } |
463ee0b2 | 3833 | } |
93a17b20 | 3834 | |
8990e307 | 3835 | listop = append_elem(OP_LINESEQ, block, newOP(OP_UNSTACK, 0)); |
883ffac3 | 3836 | o = new_logop(OP_AND, 0, &expr, &listop); |
463ee0b2 | 3837 | |
883ffac3 CS |
3838 | if (listop) |
3839 | ((LISTOP*)listop)->op_last->op_next = LINKLIST(o); | |
79072805 | 3840 | |
11343788 MB |
3841 | if (once && o != listop) |
3842 | o->op_next = ((LOGOP*)cUNOPo->op_first)->op_other; | |
79072805 | 3843 | |
11343788 MB |
3844 | if (o == listop) |
3845 | o = newUNOP(OP_NULL, 0, o); /* or do {} while 1 loses outer block */ | |
748a9306 | 3846 | |
11343788 MB |
3847 | o->op_flags |= flags; |
3848 | o = scope(o); | |
3849 | o->op_flags |= OPf_SPECIAL; /* suppress POPBLOCK curpm restoration*/ | |
3850 | return o; | |
79072805 LW |
3851 | } |
3852 | ||
3853 | OP * | |
864dbfa3 | 3854 | Perl_newWHILEOP(pTHX_ I32 flags, I32 debuggable, LOOP *loop, I32 whileline, OP *expr, OP *block, OP *cont) |
79072805 | 3855 | { |
11343788 | 3856 | dTHR; |
79072805 LW |
3857 | OP *redo; |
3858 | OP *next = 0; | |
3859 | OP *listop; | |
11343788 | 3860 | OP *o; |
79072805 | 3861 | OP *condop; |
1ba6ee2b | 3862 | U8 loopflags = 0; |
79072805 | 3863 | |
fb73857a | 3864 | if (expr && (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB |
3865 | || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB))) { | |
748a9306 | 3866 | expr = newUNOP(OP_DEFINED, 0, |
54b9620d | 3867 | newASSIGNOP(0, newDEFSVOP(), 0, expr) ); |
55d729e4 GS |
3868 | } else if (expr && (expr->op_flags & OPf_KIDS)) { |
3869 | OP *k1 = ((UNOP*)expr)->op_first; | |
3870 | OP *k2 = (k1) ? k1->op_sibling : NULL; | |
3871 | switch (expr->op_type) { | |
3872 | case OP_NULL: | |
3873 | if (k2 && k2->op_type == OP_READLINE | |
3874 | && (k2->op_flags & OPf_STACKED) | |
3875 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) | |
3876 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3877 | break; | |
3878 | ||
3879 | case OP_SASSIGN: | |
3880 | if (k1->op_type == OP_READDIR | |
3881 | || k1->op_type == OP_GLOB | |
72b16652 | 3882 | || (k1->op_type == OP_NULL && k1->op_targ == OP_GLOB) |
55d729e4 GS |
3883 | || k1->op_type == OP_EACH) |
3884 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3885 | break; | |
3886 | } | |
748a9306 | 3887 | } |
79072805 LW |
3888 | |
3889 | if (!block) | |
3890 | block = newOP(OP_NULL, 0); | |
87246558 GS |
3891 | else if (cont) { |
3892 | block = scope(block); | |
3893 | } | |
79072805 | 3894 | |
1ba6ee2b | 3895 | if (cont) { |
79072805 | 3896 | next = LINKLIST(cont); |
1ba6ee2b GS |
3897 | loopflags |= OPpLOOP_CONTINUE; |
3898 | } | |
fb73857a | 3899 | if (expr) { |
85538317 GS |
3900 | OP *unstack = newOP(OP_UNSTACK, 0); |
3901 | if (!next) | |
3902 | next = unstack; | |
3903 | cont = append_elem(OP_LINESEQ, cont, unstack); | |
fb73857a | 3904 | if ((line_t)whileline != NOLINE) { |
3280af22 | 3905 | PL_copline = whileline; |
fb73857a | 3906 | cont = append_elem(OP_LINESEQ, cont, |
3907 | newSTATEOP(0, Nullch, Nullop)); | |
3908 | } | |
3909 | } | |
79072805 | 3910 | |
463ee0b2 | 3911 | listop = append_list(OP_LINESEQ, (LISTOP*)block, (LISTOP*)cont); |
79072805 LW |
3912 | redo = LINKLIST(listop); |
3913 | ||
3914 | if (expr) { | |
3280af22 | 3915 | PL_copline = whileline; |
883ffac3 CS |
3916 | scalar(listop); |
3917 | o = new_logop(OP_AND, 0, &expr, &listop); | |
11343788 | 3918 | if (o == expr && o->op_type == OP_CONST && !SvTRUE(cSVOPo->op_sv)) { |
85e6fe83 | 3919 | op_free(expr); /* oops, it's a while (0) */ |
463ee0b2 | 3920 | op_free((OP*)loop); |
883ffac3 | 3921 | return Nullop; /* listop already freed by new_logop */ |
463ee0b2 | 3922 | } |
883ffac3 CS |
3923 | if (listop) |
3924 | ((LISTOP*)listop)->op_last->op_next = condop = | |
3925 | (o == listop ? redo : LINKLIST(o)); | |
79072805 LW |
3926 | } |
3927 | else | |
11343788 | 3928 | o = listop; |
79072805 LW |
3929 | |
3930 | if (!loop) { | |
b7dc083c | 3931 | NewOp(1101,loop,1,LOOP); |
79072805 | 3932 | loop->op_type = OP_ENTERLOOP; |
22c35a8c | 3933 | loop->op_ppaddr = PL_ppaddr[OP_ENTERLOOP]; |
79072805 LW |
3934 | loop->op_private = 0; |
3935 | loop->op_next = (OP*)loop; | |
3936 | } | |
3937 | ||
11343788 | 3938 | o = newBINOP(OP_LEAVELOOP, 0, (OP*)loop, o); |
79072805 LW |
3939 | |
3940 | loop->op_redoop = redo; | |
11343788 | 3941 | loop->op_lastop = o; |
1ba6ee2b | 3942 | o->op_private |= loopflags; |
79072805 LW |
3943 | |
3944 | if (next) | |
3945 | loop->op_nextop = next; | |
3946 | else | |
11343788 | 3947 | loop->op_nextop = o; |
79072805 | 3948 | |
11343788 MB |
3949 | o->op_flags |= flags; |
3950 | o->op_private |= (flags >> 8); | |
3951 | return o; | |
79072805 LW |
3952 | } |
3953 | ||
3954 | OP * | |
864dbfa3 | 3955 | Perl_newFOROP(pTHX_ I32 flags,char *label,line_t forline,OP *sv,OP *expr,OP *block,OP *cont) |
79072805 LW |
3956 | { |
3957 | LOOP *loop; | |
fb73857a | 3958 | OP *wop; |
85e6fe83 | 3959 | int padoff = 0; |
4633a7c4 | 3960 | I32 iterflags = 0; |
79072805 | 3961 | |
79072805 | 3962 | if (sv) { |
85e6fe83 | 3963 | if (sv->op_type == OP_RV2SV) { /* symbol table variable */ |
748a9306 | 3964 | sv->op_type = OP_RV2GV; |
22c35a8c | 3965 | sv->op_ppaddr = PL_ppaddr[OP_RV2GV]; |
79072805 | 3966 | } |
85e6fe83 LW |
3967 | else if (sv->op_type == OP_PADSV) { /* private variable */ |
3968 | padoff = sv->op_targ; | |
743e66e6 | 3969 | sv->op_targ = 0; |
85e6fe83 LW |
3970 | op_free(sv); |
3971 | sv = Nullop; | |
3972 | } | |
54b9620d MB |
3973 | else if (sv->op_type == OP_THREADSV) { /* per-thread variable */ |
3974 | padoff = sv->op_targ; | |
743e66e6 | 3975 | sv->op_targ = 0; |
54b9620d MB |
3976 | iterflags |= OPf_SPECIAL; |
3977 | op_free(sv); | |
3978 | sv = Nullop; | |
3979 | } | |
79072805 | 3980 | else |
cea2e8a9 | 3981 | Perl_croak(aTHX_ "Can't use %s for loop variable", PL_op_desc[sv->op_type]); |
79072805 LW |
3982 | } |
3983 | else { | |
54b9620d MB |
3984 | #ifdef USE_THREADS |
3985 | padoff = find_threadsv("_"); | |
3986 | iterflags |= OPf_SPECIAL; | |
3987 | #else | |
3280af22 | 3988 | sv = newGVOP(OP_GV, 0, PL_defgv); |
54b9620d | 3989 | #endif |
79072805 | 3990 | } |
5f05dabc | 3991 | if (expr->op_type == OP_RV2AV || expr->op_type == OP_PADAV) { |
89ea2908 | 3992 | expr = mod(force_list(scalar(ref(expr, OP_ITER))), OP_GREPSTART); |
4633a7c4 LW |
3993 | iterflags |= OPf_STACKED; |
3994 | } | |
89ea2908 GA |
3995 | else if (expr->op_type == OP_NULL && |
3996 | (expr->op_flags & OPf_KIDS) && | |
3997 | ((BINOP*)expr)->op_first->op_type == OP_FLOP) | |
3998 | { | |
3999 | /* Basically turn for($x..$y) into the same as for($x,$y), but we | |
4000 | * set the STACKED flag to indicate that these values are to be | |
4001 | * treated as min/max values by 'pp_iterinit'. | |
4002 | */ | |
4003 | UNOP* flip = (UNOP*)((UNOP*)((BINOP*)expr)->op_first)->op_first; | |
1a67a97c | 4004 | LOGOP* range = (LOGOP*) flip->op_first; |
89ea2908 GA |
4005 | OP* left = range->op_first; |
4006 | OP* right = left->op_sibling; | |
5152d7c7 | 4007 | LISTOP* listop; |
89ea2908 GA |
4008 | |
4009 | range->op_flags &= ~OPf_KIDS; | |
4010 | range->op_first = Nullop; | |
4011 | ||
5152d7c7 | 4012 | listop = (LISTOP*)newLISTOP(OP_LIST, 0, left, right); |
1a67a97c SM |
4013 | listop->op_first->op_next = range->op_next; |
4014 | left->op_next = range->op_other; | |
5152d7c7 GS |
4015 | right->op_next = (OP*)listop; |
4016 | listop->op_next = listop->op_first; | |
89ea2908 GA |
4017 | |
4018 | op_free(expr); | |
5152d7c7 | 4019 | expr = (OP*)(listop); |
89ea2908 GA |
4020 | null(expr); |
4021 | iterflags |= OPf_STACKED; | |
4022 | } | |
4023 | else { | |
4024 | expr = mod(force_list(expr), OP_GREPSTART); | |
4025 | } | |
4026 | ||
4027 | ||
4633a7c4 | 4028 | loop = (LOOP*)list(convert(OP_ENTERITER, iterflags, |
89ea2908 | 4029 | append_elem(OP_LIST, expr, scalar(sv)))); |
85e6fe83 | 4030 | assert(!loop->op_next); |
b7dc083c | 4031 | #ifdef PL_OP_SLAB_ALLOC |
155aba94 GS |
4032 | { |
4033 | LOOP *tmp; | |
4034 | NewOp(1234,tmp,1,LOOP); | |
4035 | Copy(loop,tmp,1,LOOP); | |
4036 | loop = tmp; | |
4037 | } | |
b7dc083c | 4038 | #else |
85e6fe83 | 4039 | Renew(loop, 1, LOOP); |
b7dc083c | 4040 | #endif |
85e6fe83 | 4041 | loop->op_targ = padoff; |
fb73857a | 4042 | wop = newWHILEOP(flags, 1, loop, forline, newOP(OP_ITER, 0), block, cont); |
3280af22 | 4043 | PL_copline = forline; |
fb73857a | 4044 | return newSTATEOP(0, label, wop); |
79072805 LW |
4045 | } |
4046 | ||
8990e307 | 4047 | OP* |
864dbfa3 | 4048 | Perl_newLOOPEX(pTHX_ I32 type, OP *label) |
8990e307 | 4049 | { |
11343788 MB |
4050 | dTHR; |
4051 | OP *o; | |
2d8e6c8d GS |
4052 | STRLEN n_a; |
4053 | ||
8990e307 | 4054 | if (type != OP_GOTO || label->op_type == OP_CONST) { |
cdaebead MB |
4055 | /* "last()" means "last" */ |
4056 | if (label->op_type == OP_STUB && (label->op_flags & OPf_PARENS)) | |
4057 | o = newOP(type, OPf_SPECIAL); | |
4058 | else { | |
4059 | o = newPVOP(type, 0, savepv(label->op_type == OP_CONST | |
2d8e6c8d | 4060 | ? SvPVx(((SVOP*)label)->op_sv, n_a) |
cdaebead MB |
4061 | : "")); |
4062 | } | |
8990e307 LW |
4063 | op_free(label); |
4064 | } | |
4065 | else { | |
a0d0e21e LW |
4066 | if (label->op_type == OP_ENTERSUB) |
4067 | label = newUNOP(OP_REFGEN, 0, mod(label, OP_REFGEN)); | |
11343788 | 4068 | o = newUNOP(type, OPf_STACKED, label); |
8990e307 | 4069 | } |
3280af22 | 4070 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 | 4071 | return o; |
8990e307 LW |
4072 | } |
4073 | ||
79072805 | 4074 | void |
864dbfa3 | 4075 | Perl_cv_undef(pTHX_ CV *cv) |
79072805 | 4076 | { |
11343788 MB |
4077 | dTHR; |
4078 | #ifdef USE_THREADS | |
e858de61 MB |
4079 | if (CvMUTEXP(cv)) { |
4080 | MUTEX_DESTROY(CvMUTEXP(cv)); | |
4081 | Safefree(CvMUTEXP(cv)); | |
4082 | CvMUTEXP(cv) = 0; | |
4083 | } | |
11343788 MB |
4084 | #endif /* USE_THREADS */ |
4085 | ||
a0d0e21e | 4086 | if (!CvXSUB(cv) && CvROOT(cv)) { |
11343788 MB |
4087 | #ifdef USE_THREADS |
4088 | if (CvDEPTH(cv) || (CvOWNER(cv) && CvOWNER(cv) != thr)) | |
cea2e8a9 | 4089 | Perl_croak(aTHX_ "Can't undef active subroutine"); |
11343788 | 4090 | #else |
a0d0e21e | 4091 | if (CvDEPTH(cv)) |
cea2e8a9 | 4092 | Perl_croak(aTHX_ "Can't undef active subroutine"); |
11343788 | 4093 | #endif /* USE_THREADS */ |
8990e307 | 4094 | ENTER; |
a0d0e21e | 4095 | |
7766f137 | 4096 | SAVEVPTR(PL_curpad); |
3280af22 | 4097 | PL_curpad = 0; |
a0d0e21e | 4098 | |
a5f75d66 | 4099 | if (!CvCLONED(cv)) |
748a9306 | 4100 | op_free(CvROOT(cv)); |
79072805 | 4101 | CvROOT(cv) = Nullop; |
8990e307 | 4102 | LEAVE; |
79072805 | 4103 | } |
1d5db326 | 4104 | SvPOK_off((SV*)cv); /* forget prototype */ |
44a8e56a | 4105 | CvFLAGS(cv) = 0; |
8e07c86e AD |
4106 | SvREFCNT_dec(CvGV(cv)); |
4107 | CvGV(cv) = Nullgv; | |
4108 | SvREFCNT_dec(CvOUTSIDE(cv)); | |
4109 | CvOUTSIDE(cv) = Nullcv; | |
4110 | if (CvPADLIST(cv)) { | |
8ebc5c01 | 4111 | /* may be during global destruction */ |
4112 | if (SvREFCNT(CvPADLIST(cv))) { | |
93965878 | 4113 | I32 i = AvFILLp(CvPADLIST(cv)); |
8ebc5c01 | 4114 | while (i >= 0) { |
4115 | SV** svp = av_fetch(CvPADLIST(cv), i--, FALSE); | |
46fc3d4c | 4116 | SV* sv = svp ? *svp : Nullsv; |
4117 | if (!sv) | |
4118 | continue; | |
3280af22 NIS |
4119 | if (sv == (SV*)PL_comppad_name) |
4120 | PL_comppad_name = Nullav; | |
4121 | else if (sv == (SV*)PL_comppad) { | |
4122 | PL_comppad = Nullav; | |
4123 | PL_curpad = Null(SV**); | |
46fc3d4c | 4124 | } |
4125 | SvREFCNT_dec(sv); | |
8ebc5c01 | 4126 | } |
4127 | SvREFCNT_dec((SV*)CvPADLIST(cv)); | |
8e07c86e | 4128 | } |
8e07c86e AD |
4129 | CvPADLIST(cv) = Nullav; |
4130 | } | |
79072805 LW |
4131 | } |
4132 | ||
76e3520e | 4133 | STATIC void |
743e66e6 | 4134 | S_cv_dump(pTHX_ CV *cv) |
5f05dabc | 4135 | { |
62fde642 | 4136 | #ifdef DEBUGGING |
5f05dabc | 4137 | CV *outside = CvOUTSIDE(cv); |
4138 | AV* padlist = CvPADLIST(cv); | |
4fdae800 | 4139 | AV* pad_name; |
4140 | AV* pad; | |
4141 | SV** pname; | |
4142 | SV** ppad; | |
5f05dabc | 4143 | I32 ix; |
4144 | ||
b900a521 JH |
4145 | PerlIO_printf(Perl_debug_log, |
4146 | "\tCV=0x%"UVxf" (%s), OUTSIDE=0x%"UVxf" (%s)\n", | |
4147 | PTR2UV(cv), | |
ab50184a | 4148 | (CvANON(cv) ? "ANON" |
6b88bc9c | 4149 | : (cv == PL_main_cv) ? "MAIN" |
33b8ce05 | 4150 | : CvUNIQUE(cv) ? "UNIQUE" |
44a8e56a | 4151 | : CvGV(cv) ? GvNAME(CvGV(cv)) : "UNDEFINED"), |
b900a521 | 4152 | PTR2UV(outside), |
ab50184a CS |
4153 | (!outside ? "null" |
4154 | : CvANON(outside) ? "ANON" | |
6b88bc9c | 4155 | : (outside == PL_main_cv) ? "MAIN" |
07055b4c | 4156 | : CvUNIQUE(outside) ? "UNIQUE" |
44a8e56a | 4157 | : CvGV(outside) ? GvNAME(CvGV(outside)) : "UNDEFINED")); |
5f05dabc | 4158 | |
4fdae800 | 4159 | if (!padlist) |
4160 | return; | |
4161 | ||
4162 | pad_name = (AV*)*av_fetch(padlist, 0, FALSE); | |
4163 | pad = (AV*)*av_fetch(padlist, 1, FALSE); | |
4164 | pname = AvARRAY(pad_name); | |
4165 | ppad = AvARRAY(pad); | |
4166 | ||
93965878 | 4167 | for (ix = 1; ix <= AvFILLp(pad_name); ix++) { |
5f05dabc | 4168 | if (SvPOK(pname[ix])) |
b900a521 JH |
4169 | PerlIO_printf(Perl_debug_log, |
4170 | "\t%4d. 0x%"UVxf" (%s\"%s\" %"IVdf"-%"IVdf")\n", | |
894356b3 | 4171 | (int)ix, PTR2UV(ppad[ix]), |
4fdae800 | 4172 | SvFAKE(pname[ix]) ? "FAKE " : "", |
4173 | SvPVX(pname[ix]), | |
b900a521 JH |
4174 | (IV)I_32(SvNVX(pname[ix])), |
4175 | SvIVX(pname[ix])); | |
5f05dabc | 4176 | } |
743e66e6 | 4177 | #endif /* DEBUGGING */ |
62fde642 | 4178 | } |
5f05dabc | 4179 | |
76e3520e | 4180 | STATIC CV * |
cea2e8a9 | 4181 | S_cv_clone2(pTHX_ CV *proto, CV *outside) |
748a9306 | 4182 | { |
11343788 | 4183 | dTHR; |
748a9306 LW |
4184 | AV* av; |
4185 | I32 ix; | |
4186 | AV* protopadlist = CvPADLIST(proto); | |
4187 | AV* protopad_name = (AV*)*av_fetch(protopadlist, 0, FALSE); | |
4188 | AV* protopad = (AV*)*av_fetch(protopadlist, 1, FALSE); | |
5f05dabc | 4189 | SV** pname = AvARRAY(protopad_name); |
4190 | SV** ppad = AvARRAY(protopad); | |
93965878 NIS |
4191 | I32 fname = AvFILLp(protopad_name); |
4192 | I32 fpad = AvFILLp(protopad); | |
748a9306 LW |
4193 | AV* comppadlist; |
4194 | CV* cv; | |
4195 | ||
07055b4c CS |
4196 | assert(!CvUNIQUE(proto)); |
4197 | ||
748a9306 | 4198 | ENTER; |
354992b1 | 4199 | SAVECOMPPAD(); |
3280af22 NIS |
4200 | SAVESPTR(PL_comppad_name); |
4201 | SAVESPTR(PL_compcv); | |
748a9306 | 4202 | |
3280af22 | 4203 | cv = PL_compcv = (CV*)NEWSV(1104,0); |
fa83b5b6 | 4204 | sv_upgrade((SV *)cv, SvTYPE(proto)); |
a57ec3bd | 4205 | CvFLAGS(cv) = CvFLAGS(proto) & ~CVf_CLONE; |
a5f75d66 | 4206 | CvCLONED_on(cv); |
748a9306 | 4207 | |
11343788 | 4208 | #ifdef USE_THREADS |
12ca11f6 | 4209 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
11343788 | 4210 | MUTEX_INIT(CvMUTEXP(cv)); |
11343788 MB |
4211 | CvOWNER(cv) = 0; |
4212 | #endif /* USE_THREADS */ | |
57843af0 | 4213 | CvFILE(cv) = CvFILE(proto); |
44a8e56a | 4214 | CvGV(cv) = (GV*)SvREFCNT_inc(CvGV(proto)); |
748a9306 LW |
4215 | CvSTASH(cv) = CvSTASH(proto); |
4216 | CvROOT(cv) = CvROOT(proto); | |
4217 | CvSTART(cv) = CvSTART(proto); | |
5f05dabc | 4218 | if (outside) |
4219 | CvOUTSIDE(cv) = (CV*)SvREFCNT_inc(outside); | |
748a9306 | 4220 | |
68dc0745 | 4221 | if (SvPOK(proto)) |
4222 | sv_setpvn((SV*)cv, SvPVX(proto), SvCUR(proto)); | |
4223 | ||
3280af22 | 4224 | PL_comppad_name = newAV(); |
46fc3d4c | 4225 | for (ix = fname; ix >= 0; ix--) |
3280af22 | 4226 | av_store(PL_comppad_name, ix, SvREFCNT_inc(pname[ix])); |
748a9306 | 4227 | |
3280af22 | 4228 | PL_comppad = newAV(); |
748a9306 LW |
4229 | |
4230 | comppadlist = newAV(); | |
4231 | AvREAL_off(comppadlist); | |
3280af22 NIS |
4232 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
4233 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
748a9306 | 4234 | CvPADLIST(cv) = comppadlist; |
3280af22 NIS |
4235 | av_fill(PL_comppad, AvFILLp(protopad)); |
4236 | PL_curpad = AvARRAY(PL_comppad); | |
748a9306 LW |
4237 | |
4238 | av = newAV(); /* will be @_ */ | |
4239 | av_extend(av, 0); | |
3280af22 | 4240 | av_store(PL_comppad, 0, (SV*)av); |
748a9306 LW |
4241 | AvFLAGS(av) = AVf_REIFY; |
4242 | ||
9607fc9c | 4243 | for (ix = fpad; ix > 0; ix--) { |
4244 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; | |
3280af22 | 4245 | if (namesv && namesv != &PL_sv_undef) { |
aa689395 | 4246 | char *name = SvPVX(namesv); /* XXX */ |
4247 | if (SvFLAGS(namesv) & SVf_FAKE) { /* lexical from outside? */ | |
4248 | I32 off = pad_findlex(name, ix, SvIVX(namesv), | |
2680586e | 4249 | CvOUTSIDE(cv), cxstack_ix, 0, 0); |
5f05dabc | 4250 | if (!off) |
3280af22 | 4251 | PL_curpad[ix] = SvREFCNT_inc(ppad[ix]); |
5f05dabc | 4252 | else if (off != ix) |
cea2e8a9 | 4253 | Perl_croak(aTHX_ "panic: cv_clone: %s", name); |
748a9306 LW |
4254 | } |
4255 | else { /* our own lexical */ | |
aa689395 | 4256 | SV* sv; |
5f05dabc | 4257 | if (*name == '&') { |
4258 | /* anon code -- we'll come back for it */ | |
4259 | sv = SvREFCNT_inc(ppad[ix]); | |
4260 | } | |
4261 | else if (*name == '@') | |
4262 | sv = (SV*)newAV(); | |
748a9306 | 4263 | else if (*name == '%') |
5f05dabc | 4264 | sv = (SV*)newHV(); |
748a9306 | 4265 | else |
5f05dabc | 4266 | sv = NEWSV(0,0); |
4267 | if (!SvPADBUSY(sv)) | |
4268 | SvPADMY_on(sv); | |
3280af22 | 4269 | PL_curpad[ix] = sv; |
748a9306 LW |
4270 | } |
4271 | } | |
7766f137 | 4272 | else if (IS_PADGV(ppad[ix]) || IS_PADCONST(ppad[ix])) { |
743e66e6 GS |
4273 | PL_curpad[ix] = SvREFCNT_inc(ppad[ix]); |
4274 | } | |
748a9306 | 4275 | else { |
aa689395 | 4276 | SV* sv = NEWSV(0,0); |
748a9306 | 4277 | SvPADTMP_on(sv); |
3280af22 | 4278 | PL_curpad[ix] = sv; |
748a9306 LW |
4279 | } |
4280 | } | |
4281 | ||
5f05dabc | 4282 | /* Now that vars are all in place, clone nested closures. */ |
4283 | ||
9607fc9c | 4284 | for (ix = fpad; ix > 0; ix--) { |
4285 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; | |
aa689395 | 4286 | if (namesv |
3280af22 | 4287 | && namesv != &PL_sv_undef |
aa689395 | 4288 | && !(SvFLAGS(namesv) & SVf_FAKE) |
4289 | && *SvPVX(namesv) == '&' | |
5f05dabc | 4290 | && CvCLONE(ppad[ix])) |
4291 | { | |
4292 | CV *kid = cv_clone2((CV*)ppad[ix], cv); | |
4293 | SvREFCNT_dec(ppad[ix]); | |
4294 | CvCLONE_on(kid); | |
4295 | SvPADMY_on(kid); | |
3280af22 | 4296 | PL_curpad[ix] = (SV*)kid; |
748a9306 LW |
4297 | } |
4298 | } | |
4299 | ||
5f05dabc | 4300 | #ifdef DEBUG_CLOSURES |
ab50184a CS |
4301 | PerlIO_printf(Perl_debug_log, "Cloned inside:\n"); |
4302 | cv_dump(outside); | |
4303 | PerlIO_printf(Perl_debug_log, " from:\n"); | |
5f05dabc | 4304 | cv_dump(proto); |
ab50184a | 4305 | PerlIO_printf(Perl_debug_log, " to:\n"); |
5f05dabc | 4306 | cv_dump(cv); |
4307 | #endif | |
4308 | ||
748a9306 LW |
4309 | LEAVE; |
4310 | return cv; | |
4311 | } | |
4312 | ||
4313 | CV * | |
864dbfa3 | 4314 | Perl_cv_clone(pTHX_ CV *proto) |
5f05dabc | 4315 | { |
b099ddc0 | 4316 | CV *cv; |
1feb2720 | 4317 | LOCK_CRED_MUTEX; /* XXX create separate mutex */ |
b099ddc0 | 4318 | cv = cv_clone2(proto, CvOUTSIDE(proto)); |
1feb2720 | 4319 | UNLOCK_CRED_MUTEX; /* XXX create separate mutex */ |
b099ddc0 | 4320 | return cv; |
5f05dabc | 4321 | } |
4322 | ||
3fe9a6f1 | 4323 | void |
864dbfa3 | 4324 | Perl_cv_ckproto(pTHX_ CV *cv, GV *gv, char *p) |
3fe9a6f1 | 4325 | { |
0453d815 PM |
4326 | dTHR; |
4327 | ||
e476b1b5 | 4328 | if (((!p != !SvPOK(cv)) || (p && strNE(p, SvPVX(cv)))) && ckWARN_d(WARN_PROTOTYPE)) { |
46fc3d4c | 4329 | SV* msg = sv_newmortal(); |
3fe9a6f1 | 4330 | SV* name = Nullsv; |
4331 | ||
4332 | if (gv) | |
46fc3d4c | 4333 | gv_efullname3(name = sv_newmortal(), gv, Nullch); |
4334 | sv_setpv(msg, "Prototype mismatch:"); | |
4335 | if (name) | |
894356b3 | 4336 | Perl_sv_catpvf(aTHX_ msg, " sub %"SVf, name); |
3fe9a6f1 | 4337 | if (SvPOK(cv)) |
cea2e8a9 | 4338 | Perl_sv_catpvf(aTHX_ msg, " (%s)", SvPVX(cv)); |
46fc3d4c | 4339 | sv_catpv(msg, " vs "); |
4340 | if (p) | |
cea2e8a9 | 4341 | Perl_sv_catpvf(aTHX_ msg, "(%s)", p); |
46fc3d4c | 4342 | else |
4343 | sv_catpv(msg, "none"); | |
e476b1b5 | 4344 | Perl_warner(aTHX_ WARN_PROTOTYPE, "%"SVf, msg); |
3fe9a6f1 | 4345 | } |
4346 | } | |
4347 | ||
760ac839 | 4348 | SV * |
864dbfa3 | 4349 | Perl_cv_const_sv(pTHX_ CV *cv) |
760ac839 | 4350 | { |
54310121 | 4351 | if (!cv || !SvPOK(cv) || SvCUR(cv)) |
4352 | return Nullsv; | |
fe5e78ed GS |
4353 | return op_const_sv(CvSTART(cv), cv); |
4354 | } | |
760ac839 | 4355 | |
fe5e78ed | 4356 | SV * |
864dbfa3 | 4357 | Perl_op_const_sv(pTHX_ OP *o, CV *cv) |
fe5e78ed GS |
4358 | { |
4359 | SV *sv = Nullsv; | |
4360 | ||
0f79a09d | 4361 | if (!o) |
fe5e78ed GS |
4362 | return Nullsv; |
4363 | ||
0f79a09d | 4364 | if (o->op_type == OP_LINESEQ && cLISTOPo->op_first) |
fe5e78ed GS |
4365 | o = cLISTOPo->op_first->op_sibling; |
4366 | ||
4367 | for (; o; o = o->op_next) { | |
54310121 | 4368 | OPCODE type = o->op_type; |
fe5e78ed | 4369 | |
acb36ea4 | 4370 | if (sv && o->op_next == o) |
fe5e78ed | 4371 | return sv; |
54310121 | 4372 | if (type == OP_NEXTSTATE || type == OP_NULL || type == OP_PUSHMARK) |
4373 | continue; | |
4374 | if (type == OP_LEAVESUB || type == OP_RETURN) | |
4375 | break; | |
4376 | if (sv) | |
4377 | return Nullsv; | |
7766f137 | 4378 | if (type == OP_CONST && cSVOPo->op_sv) |
5dc0d613 | 4379 | sv = cSVOPo->op_sv; |
7766f137 | 4380 | else if ((type == OP_PADSV || type == OP_CONST) && cv) { |
e858de61 MB |
4381 | AV* padav = (AV*)(AvARRAY(CvPADLIST(cv))[1]); |
4382 | sv = padav ? AvARRAY(padav)[o->op_targ] : Nullsv; | |
5aabfad6 | 4383 | if (!sv || (!SvREADONLY(sv) && SvREFCNT(sv) > 1)) |
54310121 | 4384 | return Nullsv; |
760ac839 | 4385 | } |
54310121 | 4386 | else |
4387 | return Nullsv; | |
760ac839 | 4388 | } |
5aabfad6 | 4389 | if (sv) |
4390 | SvREADONLY_on(sv); | |
760ac839 LW |
4391 | return sv; |
4392 | } | |
4393 | ||
09bef843 SB |
4394 | void |
4395 | Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) | |
4396 | { | |
4397 | if (o) | |
4398 | SAVEFREEOP(o); | |
4399 | if (proto) | |
4400 | SAVEFREEOP(proto); | |
4401 | if (attrs) | |
4402 | SAVEFREEOP(attrs); | |
4403 | if (block) | |
4404 | SAVEFREEOP(block); | |
4405 | Perl_croak(aTHX_ "\"my sub\" not yet implemented"); | |
4406 | } | |
4407 | ||
748a9306 | 4408 | CV * |
864dbfa3 | 4409 | Perl_newSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *block) |
79072805 | 4410 | { |
09bef843 SB |
4411 | return Perl_newATTRSUB(aTHX_ floor, o, proto, Nullop, block); |
4412 | } | |
4413 | ||
4414 | CV * | |
4415 | Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) | |
4416 | { | |
11343788 | 4417 | dTHR; |
2d8e6c8d | 4418 | STRLEN n_a; |
83ee9e09 GS |
4419 | char *name; |
4420 | char *aname; | |
4421 | GV *gv; | |
2d8e6c8d | 4422 | char *ps = proto ? SvPVx(((SVOP*)proto)->op_sv, n_a) : Nullch; |
a2008d6d | 4423 | register CV *cv=0; |
a0d0e21e | 4424 | I32 ix; |
79072805 | 4425 | |
83ee9e09 GS |
4426 | name = o ? SvPVx(cSVOPo->op_sv, n_a) : Nullch; |
4427 | if (!name && PERLDB_NAMEANON && CopLINE(PL_curcop)) { | |
4428 | SV *sv = sv_newmortal(); | |
4429 | Perl_sv_setpvf(aTHX_ sv, "__ANON__[%s:%"IVdf"]", | |
4430 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
4431 | aname = SvPVX(sv); | |
4432 | } | |
4433 | else | |
4434 | aname = Nullch; | |
4435 | gv = gv_fetchpv(name ? name : (aname ? aname : "__ANON__"), | |
4436 | GV_ADDMULTI | ((block || attrs) ? 0 : GV_NOINIT), | |
4437 | SVt_PVCV); | |
4438 | ||
11343788 | 4439 | if (o) |
5dc0d613 | 4440 | SAVEFREEOP(o); |
3fe9a6f1 | 4441 | if (proto) |
4442 | SAVEFREEOP(proto); | |
09bef843 SB |
4443 | if (attrs) |
4444 | SAVEFREEOP(attrs); | |
3fe9a6f1 | 4445 | |
09bef843 | 4446 | if (SvTYPE(gv) != SVt_PVGV) { /* Maybe prototype now, and had at |
55d729e4 GS |
4447 | maximum a prototype before. */ |
4448 | if (SvTYPE(gv) > SVt_NULL) { | |
0453d815 | 4449 | if (!SvPOK((SV*)gv) && !(SvIOK((SV*)gv) && SvIVX((SV*)gv) == -1) |
e476b1b5 | 4450 | && ckWARN_d(WARN_PROTOTYPE)) |
f248d071 | 4451 | { |
e476b1b5 | 4452 | Perl_warner(aTHX_ WARN_PROTOTYPE, "Runaway prototype"); |
f248d071 | 4453 | } |
55d729e4 GS |
4454 | cv_ckproto((CV*)gv, NULL, ps); |
4455 | } | |
4456 | if (ps) | |
4457 | sv_setpv((SV*)gv, ps); | |
4458 | else | |
4459 | sv_setiv((SV*)gv, -1); | |
3280af22 NIS |
4460 | SvREFCNT_dec(PL_compcv); |
4461 | cv = PL_compcv = NULL; | |
4462 | PL_sub_generation++; | |
55d729e4 GS |
4463 | goto noblock; |
4464 | } | |
4465 | ||
68dc0745 | 4466 | if (!name || GvCVGEN(gv)) |
4467 | cv = Nullcv; | |
155aba94 | 4468 | else if ((cv = GvCV(gv))) { |
60ed1d8c GS |
4469 | bool exists = CvROOT(cv) || CvXSUB(cv); |
4470 | /* if the subroutine doesn't exist and wasn't pre-declared | |
4471 | * with a prototype, assume it will be AUTOLOADed, | |
4472 | * skipping the prototype check | |
4473 | */ | |
4474 | if (exists || SvPOK(cv)) | |
01ec43d0 | 4475 | cv_ckproto(cv, gv, ps); |
68dc0745 | 4476 | /* already defined (or promised)? */ |
60ed1d8c | 4477 | if (exists || GvASSUMECV(gv)) { |
68dc0745 | 4478 | SV* const_sv; |
fe5e78ed | 4479 | bool const_changed = TRUE; |
09bef843 | 4480 | if (!block && !attrs) { |
aa689395 | 4481 | /* just a "sub foo;" when &foo is already defined */ |
3280af22 | 4482 | SAVEFREESV(PL_compcv); |
aa689395 | 4483 | goto done; |
4484 | } | |
7bac28a0 | 4485 | /* ahem, death to those who redefine active sort subs */ |
3280af22 | 4486 | if (PL_curstackinfo->si_type == PERLSI_SORT && PL_sortcop == CvSTART(cv)) |
cea2e8a9 | 4487 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", name); |
09bef843 SB |
4488 | if (!block) |
4489 | goto withattrs; | |
155aba94 | 4490 | if ((const_sv = cv_const_sv(cv))) |
fe5e78ed | 4491 | const_changed = sv_cmp(const_sv, op_const_sv(block, Nullcv)); |
60ed1d8c | 4492 | if ((const_sv && const_changed) || ckWARN(WARN_REDEFINE)) |
83ee9e09 | 4493 | { |
57843af0 GS |
4494 | line_t oldline = CopLINE(PL_curcop); |
4495 | CopLINE_set(PL_curcop, PL_copline); | |
cea2e8a9 | 4496 | Perl_warner(aTHX_ WARN_REDEFINE, |
599cee73 | 4497 | const_sv ? "Constant subroutine %s redefined" |
09bef843 | 4498 | : "Subroutine %s redefined", name); |
57843af0 | 4499 | CopLINE_set(PL_curcop, oldline); |
79072805 | 4500 | } |
8990e307 | 4501 | SvREFCNT_dec(cv); |
68dc0745 | 4502 | cv = Nullcv; |
79072805 LW |
4503 | } |
4504 | } | |
09bef843 SB |
4505 | withattrs: |
4506 | if (attrs) { | |
4507 | HV *stash; | |
4508 | SV *rcv; | |
4509 | ||
4510 | /* Need to do a C<use attributes $stash_of_cv,\&cv,@attrs> | |
4511 | * before we clobber PL_compcv. | |
4512 | */ | |
4513 | if (cv && !block) { | |
4514 | rcv = (SV*)cv; | |
4515 | if (CvGV(cv) && GvSTASH(CvGV(cv)) && HvNAME(GvSTASH(CvGV(cv)))) | |
4516 | stash = GvSTASH(CvGV(cv)); | |
4517 | else if (CvSTASH(cv) && HvNAME(CvSTASH(cv))) | |
4518 | stash = CvSTASH(cv); | |
4519 | else | |
4520 | stash = PL_curstash; | |
4521 | } | |
4522 | else { | |
4523 | /* possibly about to re-define existing subr -- ignore old cv */ | |
4524 | rcv = (SV*)PL_compcv; | |
4525 | if (name && GvSTASH(gv) && HvNAME(GvSTASH(gv))) | |
4526 | stash = GvSTASH(gv); | |
4527 | else | |
4528 | stash = PL_curstash; | |
4529 | } | |
4530 | apply_attrs(stash, rcv, attrs); | |
4531 | } | |
a0d0e21e | 4532 | if (cv) { /* must reuse cv if autoloaded */ |
09bef843 SB |
4533 | if (!block) { |
4534 | /* got here with just attrs -- work done, so bug out */ | |
4535 | SAVEFREESV(PL_compcv); | |
4536 | goto done; | |
4537 | } | |
4633a7c4 | 4538 | cv_undef(cv); |
3280af22 NIS |
4539 | CvFLAGS(cv) = CvFLAGS(PL_compcv); |
4540 | CvOUTSIDE(cv) = CvOUTSIDE(PL_compcv); | |
4541 | CvOUTSIDE(PL_compcv) = 0; | |
4542 | CvPADLIST(cv) = CvPADLIST(PL_compcv); | |
4543 | CvPADLIST(PL_compcv) = 0; | |
4544 | if (SvREFCNT(PL_compcv) > 1) /* XXX Make closures transit through stub. */ | |
4545 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc((SV*)cv); | |
4546 | SvREFCNT_dec(PL_compcv); | |
a0d0e21e LW |
4547 | } |
4548 | else { | |
3280af22 | 4549 | cv = PL_compcv; |
44a8e56a | 4550 | if (name) { |
4551 | GvCV(gv) = cv; | |
4552 | GvCVGEN(gv) = 0; | |
3280af22 | 4553 | PL_sub_generation++; |
44a8e56a | 4554 | } |
a0d0e21e | 4555 | } |
44a8e56a | 4556 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
57843af0 | 4557 | CvFILE(cv) = CopFILE(PL_curcop); |
3280af22 | 4558 | CvSTASH(cv) = PL_curstash; |
11343788 MB |
4559 | #ifdef USE_THREADS |
4560 | CvOWNER(cv) = 0; | |
1cfa4ec7 | 4561 | if (!CvMUTEXP(cv)) { |
f6aaf501 | 4562 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
1cfa4ec7 GS |
4563 | MUTEX_INIT(CvMUTEXP(cv)); |
4564 | } | |
11343788 | 4565 | #endif /* USE_THREADS */ |
8990e307 | 4566 | |
3fe9a6f1 | 4567 | if (ps) |
4568 | sv_setpv((SV*)cv, ps); | |
4633a7c4 | 4569 | |
3280af22 | 4570 | if (PL_error_count) { |
c07a80fd | 4571 | op_free(block); |
4572 | block = Nullop; | |
68dc0745 | 4573 | if (name) { |
4574 | char *s = strrchr(name, ':'); | |
4575 | s = s ? s+1 : name; | |
6d4c2119 CS |
4576 | if (strEQ(s, "BEGIN")) { |
4577 | char *not_safe = | |
4578 | "BEGIN not safe after errors--compilation aborted"; | |
faef0170 | 4579 | if (PL_in_eval & EVAL_KEEPERR) |
cea2e8a9 | 4580 | Perl_croak(aTHX_ not_safe); |
6d4c2119 CS |
4581 | else { |
4582 | /* force display of errors found but not reported */ | |
38a03e6e | 4583 | sv_catpv(ERRSV, not_safe); |
cea2e8a9 | 4584 | Perl_croak(aTHX_ "%s", SvPVx(ERRSV, n_a)); |
6d4c2119 CS |
4585 | } |
4586 | } | |
68dc0745 | 4587 | } |
c07a80fd | 4588 | } |
a0d0e21e | 4589 | if (!block) { |
55d729e4 | 4590 | noblock: |
3280af22 | 4591 | PL_copline = NOLINE; |
a0d0e21e LW |
4592 | LEAVE_SCOPE(floor); |
4593 | return cv; | |
4594 | } | |
4595 | ||
3280af22 NIS |
4596 | if (AvFILLp(PL_comppad_name) < AvFILLp(PL_comppad)) |
4597 | av_store(PL_comppad_name, AvFILLp(PL_comppad), Nullsv); | |
a0d0e21e | 4598 | |
7766f137 GS |
4599 | if (CvLVALUE(cv)) { |
4600 | CvROOT(cv) = newUNOP(OP_LEAVESUBLV, 0, scalarseq(block)); | |
4601 | } | |
4602 | else { | |
4603 | CvROOT(cv) = newUNOP(OP_LEAVESUB, 0, scalarseq(block)); | |
4604 | } | |
4605 | CvROOT(cv)->op_private |= OPpREFCOUNTED; | |
4606 | OpREFCNT_set(CvROOT(cv), 1); | |
4607 | CvSTART(cv) = LINKLIST(CvROOT(cv)); | |
4608 | CvROOT(cv)->op_next = 0; | |
4609 | peep(CvSTART(cv)); | |
4610 | ||
4611 | /* now that optimizer has done its work, adjust pad values */ | |
54310121 | 4612 | if (CvCLONE(cv)) { |
3280af22 NIS |
4613 | SV **namep = AvARRAY(PL_comppad_name); |
4614 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { | |
54310121 | 4615 | SV *namesv; |
4616 | ||
7766f137 | 4617 | if (SvIMMORTAL(PL_curpad[ix]) || IS_PADGV(PL_curpad[ix]) || IS_PADCONST(PL_curpad[ix])) |
54310121 | 4618 | continue; |
4619 | /* | |
4620 | * The only things that a clonable function needs in its | |
4621 | * pad are references to outer lexicals and anonymous subs. | |
4622 | * The rest are created anew during cloning. | |
4623 | */ | |
4624 | if (!((namesv = namep[ix]) != Nullsv && | |
3280af22 | 4625 | namesv != &PL_sv_undef && |
54310121 | 4626 | (SvFAKE(namesv) || |
4627 | *SvPVX(namesv) == '&'))) | |
4628 | { | |
3280af22 NIS |
4629 | SvREFCNT_dec(PL_curpad[ix]); |
4630 | PL_curpad[ix] = Nullsv; | |
54310121 | 4631 | } |
4632 | } | |
a0d0e21e | 4633 | } |
54310121 | 4634 | else { |
4635 | AV *av = newAV(); /* Will be @_ */ | |
4636 | av_extend(av, 0); | |
3280af22 | 4637 | av_store(PL_comppad, 0, (SV*)av); |
54310121 | 4638 | AvFLAGS(av) = AVf_REIFY; |
79072805 | 4639 | |
3280af22 | 4640 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { |
7766f137 | 4641 | if (SvIMMORTAL(PL_curpad[ix]) || IS_PADGV(PL_curpad[ix]) || IS_PADCONST(PL_curpad[ix])) |
54310121 | 4642 | continue; |
3280af22 NIS |
4643 | if (!SvPADMY(PL_curpad[ix])) |
4644 | SvPADTMP_on(PL_curpad[ix]); | |
54310121 | 4645 | } |
4646 | } | |
79072805 | 4647 | |
83ee9e09 | 4648 | if (name || aname) { |
44a8e56a | 4649 | char *s; |
83ee9e09 | 4650 | char *tname = (name ? name : aname); |
44a8e56a | 4651 | |
3280af22 | 4652 | if (PERLDB_SUBLINE && PL_curstash != PL_debstash) { |
46fc3d4c | 4653 | SV *sv = NEWSV(0,0); |
44a8e56a | 4654 | SV *tmpstr = sv_newmortal(); |
549bb64a | 4655 | GV *db_postponed = gv_fetchpv("DB::postponed", GV_ADDMULTI, SVt_PVHV); |
83ee9e09 | 4656 | CV *pcv; |
44a8e56a | 4657 | HV *hv; |
4658 | ||
ed094faf GS |
4659 | Perl_sv_setpvf(aTHX_ sv, "%s:%ld-%ld", |
4660 | CopFILE(PL_curcop), | |
cc49e20b | 4661 | (long)PL_subline, (long)CopLINE(PL_curcop)); |
44a8e56a | 4662 | gv_efullname3(tmpstr, gv, Nullch); |
3280af22 | 4663 | hv_store(GvHV(PL_DBsub), SvPVX(tmpstr), SvCUR(tmpstr), sv, 0); |
44a8e56a | 4664 | hv = GvHVn(db_postponed); |
9607fc9c | 4665 | if (HvFILL(hv) > 0 && hv_exists(hv, SvPVX(tmpstr), SvCUR(tmpstr)) |
83ee9e09 GS |
4666 | && (pcv = GvCV(db_postponed))) |
4667 | { | |
44a8e56a | 4668 | dSP; |
924508f0 | 4669 | PUSHMARK(SP); |
44a8e56a | 4670 | XPUSHs(tmpstr); |
4671 | PUTBACK; | |
83ee9e09 | 4672 | call_sv((SV*)pcv, G_DISCARD); |
44a8e56a | 4673 | } |
4674 | } | |
79072805 | 4675 | |
83ee9e09 | 4676 | if ((s = strrchr(tname,':'))) |
28757baa | 4677 | s++; |
4678 | else | |
83ee9e09 | 4679 | s = tname; |
ed094faf | 4680 | |
7d30b5c4 | 4681 | if (*s != 'B' && *s != 'E' && *s != 'C' && *s != 'I') |
ed094faf GS |
4682 | goto done; |
4683 | ||
68dc0745 | 4684 | if (strEQ(s, "BEGIN")) { |
3280af22 | 4685 | I32 oldscope = PL_scopestack_ix; |
28757baa | 4686 | ENTER; |
57843af0 GS |
4687 | SAVECOPFILE(&PL_compiling); |
4688 | SAVECOPLINE(&PL_compiling); | |
3280af22 NIS |
4689 | save_svref(&PL_rs); |
4690 | sv_setsv(PL_rs, PL_nrs); | |
28757baa | 4691 | |
3280af22 NIS |
4692 | if (!PL_beginav) |
4693 | PL_beginav = newAV(); | |
28757baa | 4694 | DEBUG_x( dump_sub(gv) ); |
ea2f84a3 GS |
4695 | av_push(PL_beginav, (SV*)cv); |
4696 | GvCV(gv) = 0; /* cv has been hijacked */ | |
3280af22 | 4697 | call_list(oldscope, PL_beginav); |
a6006777 | 4698 | |
3280af22 | 4699 | PL_curcop = &PL_compiling; |
a0ed51b3 | 4700 | PL_compiling.op_private = PL_hints; |
28757baa | 4701 | LEAVE; |
4702 | } | |
3280af22 NIS |
4703 | else if (strEQ(s, "END") && !PL_error_count) { |
4704 | if (!PL_endav) | |
4705 | PL_endav = newAV(); | |
ed094faf | 4706 | DEBUG_x( dump_sub(gv) ); |
3280af22 | 4707 | av_unshift(PL_endav, 1); |
ea2f84a3 GS |
4708 | av_store(PL_endav, 0, (SV*)cv); |
4709 | GvCV(gv) = 0; /* cv has been hijacked */ | |
28757baa | 4710 | } |
7d30b5c4 GS |
4711 | else if (strEQ(s, "CHECK") && !PL_error_count) { |
4712 | if (!PL_checkav) | |
4713 | PL_checkav = newAV(); | |
ed094faf | 4714 | DEBUG_x( dump_sub(gv) ); |
ddda08b7 GS |
4715 | if (PL_main_start && ckWARN(WARN_VOID)) |
4716 | Perl_warner(aTHX_ WARN_VOID, "Too late to run CHECK block"); | |
7d30b5c4 | 4717 | av_unshift(PL_checkav, 1); |
ea2f84a3 GS |
4718 | av_store(PL_checkav, 0, (SV*)cv); |
4719 | GvCV(gv) = 0; /* cv has been hijacked */ | |
4f25aa18 | 4720 | } |
3280af22 NIS |
4721 | else if (strEQ(s, "INIT") && !PL_error_count) { |
4722 | if (!PL_initav) | |
4723 | PL_initav = newAV(); | |
ed094faf | 4724 | DEBUG_x( dump_sub(gv) ); |
ddda08b7 GS |
4725 | if (PL_main_start && ckWARN(WARN_VOID)) |
4726 | Perl_warner(aTHX_ WARN_VOID, "Too late to run INIT block"); | |
ea2f84a3 GS |
4727 | av_push(PL_initav, (SV*)cv); |
4728 | GvCV(gv) = 0; /* cv has been hijacked */ | |
ae77835f | 4729 | } |
79072805 | 4730 | } |
a6006777 | 4731 | |
aa689395 | 4732 | done: |
3280af22 | 4733 | PL_copline = NOLINE; |
8990e307 | 4734 | LEAVE_SCOPE(floor); |
a0d0e21e | 4735 | return cv; |
79072805 LW |
4736 | } |
4737 | ||
b099ddc0 | 4738 | /* XXX unsafe for threads if eval_owner isn't held */ |
954c1994 GS |
4739 | /* |
4740 | =for apidoc newCONSTSUB | |
4741 | ||
4742 | Creates a constant sub equivalent to Perl C<sub FOO () { 123 }> which is | |
4743 | eligible for inlining at compile-time. | |
4744 | ||
4745 | =cut | |
4746 | */ | |
4747 | ||
5476c433 | 4748 | void |
864dbfa3 | 4749 | Perl_newCONSTSUB(pTHX_ HV *stash, char *name, SV *sv) |
5476c433 JD |
4750 | { |
4751 | dTHR; | |
5476c433 | 4752 | |
11faa288 | 4753 | ENTER; |
11faa288 | 4754 | |
f4dd75d9 | 4755 | SAVECOPLINE(PL_curcop); |
11faa288 | 4756 | CopLINE_set(PL_curcop, PL_copline); |
f4dd75d9 GS |
4757 | |
4758 | SAVEHINTS(); | |
3280af22 | 4759 | PL_hints &= ~HINT_BLOCK_SCOPE; |
11faa288 GS |
4760 | |
4761 | if (stash) { | |
4762 | SAVESPTR(PL_curstash); | |
4763 | SAVECOPSTASH(PL_curcop); | |
4764 | PL_curstash = stash; | |
4765 | #ifdef USE_ITHREADS | |
4766 | CopSTASHPV(PL_curcop) = stash ? HvNAME(stash) : Nullch; | |
4767 | #else | |
4768 | CopSTASH(PL_curcop) = stash; | |
4769 | #endif | |
4770 | } | |
5476c433 | 4771 | |
09bef843 | 4772 | newATTRSUB( |
be24f278 | 4773 | start_subparse(FALSE, 0), |
5476c433 | 4774 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
6b88bc9c | 4775 | newSVOP(OP_CONST, 0, &PL_sv_no), /* SvPV(&PL_sv_no) == "" -- GMB */ |
09bef843 | 4776 | Nullop, |
5476c433 JD |
4777 | newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv)) |
4778 | ); | |
4779 | ||
11faa288 | 4780 | LEAVE; |
5476c433 JD |
4781 | } |
4782 | ||
954c1994 GS |
4783 | /* |
4784 | =for apidoc U||newXS | |
4785 | ||
4786 | Used by C<xsubpp> to hook up XSUBs as Perl subs. | |
4787 | ||
4788 | =cut | |
4789 | */ | |
4790 | ||
57d3b86d | 4791 | CV * |
864dbfa3 | 4792 | Perl_newXS(pTHX_ char *name, XSUBADDR_t subaddr, char *filename) |
a0d0e21e | 4793 | { |
11343788 | 4794 | dTHR; |
44a8e56a | 4795 | GV *gv = gv_fetchpv(name ? name : "__ANON__", GV_ADDMULTI, SVt_PVCV); |
79072805 | 4796 | register CV *cv; |
44a8e56a | 4797 | |
155aba94 | 4798 | if ((cv = (name ? GvCV(gv) : Nullcv))) { |
44a8e56a | 4799 | if (GvCVGEN(gv)) { |
4800 | /* just a cached method */ | |
4801 | SvREFCNT_dec(cv); | |
4802 | cv = 0; | |
4803 | } | |
4804 | else if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) { | |
4805 | /* already defined (or promised) */ | |
599cee73 | 4806 | if (ckWARN(WARN_REDEFINE) && !(CvGV(cv) && GvSTASH(CvGV(cv)) |
2f34f9d4 IZ |
4807 | && HvNAME(GvSTASH(CvGV(cv))) |
4808 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), "autouse"))) { | |
57843af0 | 4809 | line_t oldline = CopLINE(PL_curcop); |
51f6edd3 | 4810 | if (PL_copline != NOLINE) |
57843af0 | 4811 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 4812 | Perl_warner(aTHX_ WARN_REDEFINE, "Subroutine %s redefined",name); |
57843af0 | 4813 | CopLINE_set(PL_curcop, oldline); |
a0d0e21e LW |
4814 | } |
4815 | SvREFCNT_dec(cv); | |
4816 | cv = 0; | |
79072805 | 4817 | } |
79072805 | 4818 | } |
44a8e56a | 4819 | |
4820 | if (cv) /* must reuse cv if autoloaded */ | |
4821 | cv_undef(cv); | |
a0d0e21e LW |
4822 | else { |
4823 | cv = (CV*)NEWSV(1105,0); | |
4824 | sv_upgrade((SV *)cv, SVt_PVCV); | |
44a8e56a | 4825 | if (name) { |
4826 | GvCV(gv) = cv; | |
4827 | GvCVGEN(gv) = 0; | |
3280af22 | 4828 | PL_sub_generation++; |
44a8e56a | 4829 | } |
a0d0e21e | 4830 | } |
5196be3e | 4831 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
11343788 | 4832 | #ifdef USE_THREADS |
12ca11f6 | 4833 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
11343788 | 4834 | MUTEX_INIT(CvMUTEXP(cv)); |
11343788 MB |
4835 | CvOWNER(cv) = 0; |
4836 | #endif /* USE_THREADS */ | |
b195d487 | 4837 | (void)gv_fetchfile(filename); |
57843af0 GS |
4838 | CvFILE(cv) = filename; /* NOTE: not copied, as it is expected to be |
4839 | an external constant string */ | |
a0d0e21e | 4840 | CvXSUB(cv) = subaddr; |
44a8e56a | 4841 | |
28757baa | 4842 | if (name) { |
4843 | char *s = strrchr(name,':'); | |
4844 | if (s) | |
4845 | s++; | |
4846 | else | |
4847 | s = name; | |
ed094faf | 4848 | |
7d30b5c4 | 4849 | if (*s != 'B' && *s != 'E' && *s != 'C' && *s != 'I') |
ed094faf GS |
4850 | goto done; |
4851 | ||
28757baa | 4852 | if (strEQ(s, "BEGIN")) { |
3280af22 NIS |
4853 | if (!PL_beginav) |
4854 | PL_beginav = newAV(); | |
ea2f84a3 GS |
4855 | av_push(PL_beginav, (SV*)cv); |
4856 | GvCV(gv) = 0; /* cv has been hijacked */ | |
28757baa | 4857 | } |
4858 | else if (strEQ(s, "END")) { | |
3280af22 NIS |
4859 | if (!PL_endav) |
4860 | PL_endav = newAV(); | |
4861 | av_unshift(PL_endav, 1); | |
ea2f84a3 GS |
4862 | av_store(PL_endav, 0, (SV*)cv); |
4863 | GvCV(gv) = 0; /* cv has been hijacked */ | |
28757baa | 4864 | } |
7d30b5c4 GS |
4865 | else if (strEQ(s, "CHECK")) { |
4866 | if (!PL_checkav) | |
4867 | PL_checkav = newAV(); | |
ddda08b7 GS |
4868 | if (PL_main_start && ckWARN(WARN_VOID)) |
4869 | Perl_warner(aTHX_ WARN_VOID, "Too late to run CHECK block"); | |
7d30b5c4 | 4870 | av_unshift(PL_checkav, 1); |
ea2f84a3 GS |
4871 | av_store(PL_checkav, 0, (SV*)cv); |
4872 | GvCV(gv) = 0; /* cv has been hijacked */ | |
4f25aa18 | 4873 | } |
7d07dbc2 | 4874 | else if (strEQ(s, "INIT")) { |
3280af22 NIS |
4875 | if (!PL_initav) |
4876 | PL_initav = newAV(); | |
ddda08b7 GS |
4877 | if (PL_main_start && ckWARN(WARN_VOID)) |
4878 | Perl_warner(aTHX_ WARN_VOID, "Too late to run INIT block"); | |
ea2f84a3 GS |
4879 | av_push(PL_initav, (SV*)cv); |
4880 | GvCV(gv) = 0; /* cv has been hijacked */ | |
ae77835f | 4881 | } |
28757baa | 4882 | } |
8990e307 | 4883 | else |
a5f75d66 | 4884 | CvANON_on(cv); |
44a8e56a | 4885 | |
ed094faf | 4886 | done: |
a0d0e21e | 4887 | return cv; |
79072805 LW |
4888 | } |
4889 | ||
4890 | void | |
864dbfa3 | 4891 | Perl_newFORM(pTHX_ I32 floor, OP *o, OP *block) |
79072805 | 4892 | { |
11343788 | 4893 | dTHR; |
79072805 LW |
4894 | register CV *cv; |
4895 | char *name; | |
4896 | GV *gv; | |
a0d0e21e | 4897 | I32 ix; |
2d8e6c8d | 4898 | STRLEN n_a; |
79072805 | 4899 | |
11343788 | 4900 | if (o) |
2d8e6c8d | 4901 | name = SvPVx(cSVOPo->op_sv, n_a); |
79072805 LW |
4902 | else |
4903 | name = "STDOUT"; | |
85e6fe83 | 4904 | gv = gv_fetchpv(name,TRUE, SVt_PVFM); |
a5f75d66 | 4905 | GvMULTI_on(gv); |
155aba94 | 4906 | if ((cv = GvFORM(gv))) { |
599cee73 | 4907 | if (ckWARN(WARN_REDEFINE)) { |
57843af0 | 4908 | line_t oldline = CopLINE(PL_curcop); |
79072805 | 4909 | |
57843af0 | 4910 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 4911 | Perl_warner(aTHX_ WARN_REDEFINE, "Format %s redefined",name); |
57843af0 | 4912 | CopLINE_set(PL_curcop, oldline); |
79072805 | 4913 | } |
8990e307 | 4914 | SvREFCNT_dec(cv); |
79072805 | 4915 | } |
3280af22 | 4916 | cv = PL_compcv; |
79072805 | 4917 | GvFORM(gv) = cv; |
44a8e56a | 4918 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
57843af0 | 4919 | CvFILE(cv) = CopFILE(PL_curcop); |
79072805 | 4920 | |
3280af22 NIS |
4921 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { |
4922 | if (!SvPADMY(PL_curpad[ix]) && !SvIMMORTAL(PL_curpad[ix])) | |
4923 | SvPADTMP_on(PL_curpad[ix]); | |
a0d0e21e LW |
4924 | } |
4925 | ||
79072805 | 4926 | CvROOT(cv) = newUNOP(OP_LEAVEWRITE, 0, scalarseq(block)); |
7934575e GS |
4927 | CvROOT(cv)->op_private |= OPpREFCOUNTED; |
4928 | OpREFCNT_set(CvROOT(cv), 1); | |
79072805 LW |
4929 | CvSTART(cv) = LINKLIST(CvROOT(cv)); |
4930 | CvROOT(cv)->op_next = 0; | |
4931 | peep(CvSTART(cv)); | |
11343788 | 4932 | op_free(o); |
3280af22 | 4933 | PL_copline = NOLINE; |
8990e307 | 4934 | LEAVE_SCOPE(floor); |
79072805 LW |
4935 | } |
4936 | ||
4937 | OP * | |
864dbfa3 | 4938 | Perl_newANONLIST(pTHX_ OP *o) |
79072805 | 4939 | { |
93a17b20 | 4940 | return newUNOP(OP_REFGEN, 0, |
11343788 | 4941 | mod(list(convert(OP_ANONLIST, 0, o)), OP_REFGEN)); |
79072805 LW |
4942 | } |
4943 | ||
4944 | OP * | |
864dbfa3 | 4945 | Perl_newANONHASH(pTHX_ OP *o) |
79072805 | 4946 | { |
93a17b20 | 4947 | return newUNOP(OP_REFGEN, 0, |
11343788 | 4948 | mod(list(convert(OP_ANONHASH, 0, o)), OP_REFGEN)); |
a0d0e21e LW |
4949 | } |
4950 | ||
4951 | OP * | |
864dbfa3 | 4952 | Perl_newANONSUB(pTHX_ I32 floor, OP *proto, OP *block) |
a0d0e21e | 4953 | { |
09bef843 SB |
4954 | return newANONATTRSUB(floor, proto, Nullop, block); |
4955 | } | |
4956 | ||
4957 | OP * | |
4958 | Perl_newANONATTRSUB(pTHX_ I32 floor, OP *proto, OP *attrs, OP *block) | |
4959 | { | |
a0d0e21e | 4960 | return newUNOP(OP_REFGEN, 0, |
09bef843 SB |
4961 | newSVOP(OP_ANONCODE, 0, |
4962 | (SV*)newATTRSUB(floor, 0, proto, attrs, block))); | |
79072805 LW |
4963 | } |
4964 | ||
4965 | OP * | |
864dbfa3 | 4966 | Perl_oopsAV(pTHX_ OP *o) |
79072805 | 4967 | { |
ed6116ce LW |
4968 | switch (o->op_type) { |
4969 | case OP_PADSV: | |
4970 | o->op_type = OP_PADAV; | |
22c35a8c | 4971 | o->op_ppaddr = PL_ppaddr[OP_PADAV]; |
51e247a3 | 4972 | return ref(o, OP_RV2AV); |
ed6116ce LW |
4973 | |
4974 | case OP_RV2SV: | |
79072805 | 4975 | o->op_type = OP_RV2AV; |
22c35a8c | 4976 | o->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
79072805 | 4977 | ref(o, OP_RV2AV); |
ed6116ce LW |
4978 | break; |
4979 | ||
4980 | default: | |
0453d815 PM |
4981 | if (ckWARN_d(WARN_INTERNAL)) |
4982 | Perl_warner(aTHX_ WARN_INTERNAL, "oops: oopsAV"); | |
ed6116ce LW |
4983 | break; |
4984 | } | |
79072805 LW |
4985 | return o; |
4986 | } | |
4987 | ||
4988 | OP * | |
864dbfa3 | 4989 | Perl_oopsHV(pTHX_ OP *o) |
79072805 | 4990 | { |
0453d815 | 4991 | dTHR; |
0453d815 | 4992 | |
ed6116ce LW |
4993 | switch (o->op_type) { |
4994 | case OP_PADSV: | |
4995 | case OP_PADAV: | |
4996 | o->op_type = OP_PADHV; | |
22c35a8c | 4997 | o->op_ppaddr = PL_ppaddr[OP_PADHV]; |
51e247a3 | 4998 | return ref(o, OP_RV2HV); |
ed6116ce LW |
4999 | |
5000 | case OP_RV2SV: | |
5001 | case OP_RV2AV: | |
79072805 | 5002 | o->op_type = OP_RV2HV; |
22c35a8c | 5003 | o->op_ppaddr = PL_ppaddr[OP_RV2HV]; |
79072805 | 5004 | ref(o, OP_RV2HV); |
ed6116ce LW |
5005 | break; |
5006 | ||
5007 | default: | |
0453d815 PM |
5008 | if (ckWARN_d(WARN_INTERNAL)) |
5009 | Perl_warner(aTHX_ WARN_INTERNAL, "oops: oopsHV"); | |
ed6116ce LW |
5010 | break; |
5011 | } | |
79072805 LW |
5012 | return o; |
5013 | } | |
5014 | ||
5015 | OP * | |
864dbfa3 | 5016 | Perl_newAVREF(pTHX_ OP *o) |
79072805 | 5017 | { |
ed6116ce LW |
5018 | if (o->op_type == OP_PADANY) { |
5019 | o->op_type = OP_PADAV; | |
22c35a8c | 5020 | o->op_ppaddr = PL_ppaddr[OP_PADAV]; |
93a17b20 | 5021 | return o; |
ed6116ce | 5022 | } |
79072805 LW |
5023 | return newUNOP(OP_RV2AV, 0, scalar(o)); |
5024 | } | |
5025 | ||
5026 | OP * | |
864dbfa3 | 5027 | Perl_newGVREF(pTHX_ I32 type, OP *o) |
79072805 | 5028 | { |
82092f1d | 5029 | if (type == OP_MAPSTART || type == OP_GREPSTART || type == OP_SORT) |
a0d0e21e | 5030 | return newUNOP(OP_NULL, 0, o); |
748a9306 | 5031 | return ref(newUNOP(OP_RV2GV, OPf_REF, o), type); |
79072805 LW |
5032 | } |
5033 | ||
5034 | OP * | |
864dbfa3 | 5035 | Perl_newHVREF(pTHX_ OP *o) |
79072805 | 5036 | { |
ed6116ce LW |
5037 | if (o->op_type == OP_PADANY) { |
5038 | o->op_type = OP_PADHV; | |
22c35a8c | 5039 | o->op_ppaddr = PL_ppaddr[OP_PADHV]; |
93a17b20 | 5040 | return o; |
ed6116ce | 5041 | } |
79072805 LW |
5042 | return newUNOP(OP_RV2HV, 0, scalar(o)); |
5043 | } | |
5044 | ||
5045 | OP * | |
864dbfa3 | 5046 | Perl_oopsCV(pTHX_ OP *o) |
79072805 | 5047 | { |
cea2e8a9 | 5048 | Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__); |
79072805 LW |
5049 | /* STUB */ |
5050 | return o; | |
5051 | } | |
5052 | ||
5053 | OP * | |
864dbfa3 | 5054 | Perl_newCVREF(pTHX_ I32 flags, OP *o) |
79072805 | 5055 | { |
c07a80fd | 5056 | return newUNOP(OP_RV2CV, flags, scalar(o)); |
79072805 LW |
5057 | } |
5058 | ||
5059 | OP * | |
864dbfa3 | 5060 | Perl_newSVREF(pTHX_ OP *o) |
79072805 | 5061 | { |
ed6116ce LW |
5062 | if (o->op_type == OP_PADANY) { |
5063 | o->op_type = OP_PADSV; | |
22c35a8c | 5064 | o->op_ppaddr = PL_ppaddr[OP_PADSV]; |
93a17b20 | 5065 | return o; |
ed6116ce | 5066 | } |
224a4551 MB |
5067 | else if (o->op_type == OP_THREADSV && !(o->op_flags & OPpDONE_SVREF)) { |
5068 | o->op_flags |= OPpDONE_SVREF; | |
a863c7d1 | 5069 | return o; |
224a4551 | 5070 | } |
79072805 LW |
5071 | return newUNOP(OP_RV2SV, 0, scalar(o)); |
5072 | } | |
5073 | ||
5074 | /* Check routines. */ | |
5075 | ||
5076 | OP * | |
cea2e8a9 | 5077 | Perl_ck_anoncode(pTHX_ OP *o) |
5f05dabc | 5078 | { |
178c6305 CS |
5079 | PADOFFSET ix; |
5080 | SV* name; | |
5081 | ||
5082 | name = NEWSV(1106,0); | |
5083 | sv_upgrade(name, SVt_PVNV); | |
5084 | sv_setpvn(name, "&", 1); | |
5085 | SvIVX(name) = -1; | |
5086 | SvNVX(name) = 1; | |
5dc0d613 | 5087 | ix = pad_alloc(o->op_type, SVs_PADMY); |
3280af22 NIS |
5088 | av_store(PL_comppad_name, ix, name); |
5089 | av_store(PL_comppad, ix, cSVOPo->op_sv); | |
5dc0d613 MB |
5090 | SvPADMY_on(cSVOPo->op_sv); |
5091 | cSVOPo->op_sv = Nullsv; | |
5092 | cSVOPo->op_targ = ix; | |
5093 | return o; | |
5f05dabc | 5094 | } |
5095 | ||
5096 | OP * | |
cea2e8a9 | 5097 | Perl_ck_bitop(pTHX_ OP *o) |
55497cff | 5098 | { |
3280af22 | 5099 | o->op_private = PL_hints; |
5dc0d613 | 5100 | return o; |
55497cff | 5101 | } |
5102 | ||
5103 | OP * | |
cea2e8a9 | 5104 | Perl_ck_concat(pTHX_ OP *o) |
79072805 | 5105 | { |
11343788 MB |
5106 | if (cUNOPo->op_first->op_type == OP_CONCAT) |
5107 | o->op_flags |= OPf_STACKED; | |
5108 | return o; | |
79072805 LW |
5109 | } |
5110 | ||
5111 | OP * | |
cea2e8a9 | 5112 | Perl_ck_spair(pTHX_ OP *o) |
79072805 | 5113 | { |
11343788 | 5114 | if (o->op_flags & OPf_KIDS) { |
79072805 | 5115 | OP* newop; |
a0d0e21e | 5116 | OP* kid; |
5dc0d613 MB |
5117 | OPCODE type = o->op_type; |
5118 | o = modkids(ck_fun(o), type); | |
11343788 | 5119 | kid = cUNOPo->op_first; |
a0d0e21e LW |
5120 | newop = kUNOP->op_first->op_sibling; |
5121 | if (newop && | |
5122 | (newop->op_sibling || | |
22c35a8c | 5123 | !(PL_opargs[newop->op_type] & OA_RETSCALAR) || |
a0d0e21e LW |
5124 | newop->op_type == OP_PADAV || newop->op_type == OP_PADHV || |
5125 | newop->op_type == OP_RV2AV || newop->op_type == OP_RV2HV)) { | |
aeea060c | 5126 | |
11343788 | 5127 | return o; |
a0d0e21e LW |
5128 | } |
5129 | op_free(kUNOP->op_first); | |
5130 | kUNOP->op_first = newop; | |
5131 | } | |
22c35a8c | 5132 | o->op_ppaddr = PL_ppaddr[++o->op_type]; |
11343788 | 5133 | return ck_fun(o); |
a0d0e21e LW |
5134 | } |
5135 | ||
5136 | OP * | |
cea2e8a9 | 5137 | Perl_ck_delete(pTHX_ OP *o) |
a0d0e21e | 5138 | { |
11343788 | 5139 | o = ck_fun(o); |
5dc0d613 | 5140 | o->op_private = 0; |
11343788 MB |
5141 | if (o->op_flags & OPf_KIDS) { |
5142 | OP *kid = cUNOPo->op_first; | |
01020589 GS |
5143 | switch (kid->op_type) { |
5144 | case OP_ASLICE: | |
5145 | o->op_flags |= OPf_SPECIAL; | |
5146 | /* FALL THROUGH */ | |
5147 | case OP_HSLICE: | |
5dc0d613 | 5148 | o->op_private |= OPpSLICE; |
01020589 GS |
5149 | break; |
5150 | case OP_AELEM: | |
5151 | o->op_flags |= OPf_SPECIAL; | |
5152 | /* FALL THROUGH */ | |
5153 | case OP_HELEM: | |
5154 | break; | |
5155 | default: | |
5156 | Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element or slice", | |
22c35a8c | 5157 | PL_op_desc[o->op_type]); |
01020589 | 5158 | } |
a0d0e21e | 5159 | null(kid); |
79072805 | 5160 | } |
11343788 | 5161 | return o; |
79072805 LW |
5162 | } |
5163 | ||
5164 | OP * | |
cea2e8a9 | 5165 | Perl_ck_eof(pTHX_ OP *o) |
79072805 | 5166 | { |
11343788 | 5167 | I32 type = o->op_type; |
79072805 | 5168 | |
11343788 MB |
5169 | if (o->op_flags & OPf_KIDS) { |
5170 | if (cLISTOPo->op_first->op_type == OP_STUB) { | |
5171 | op_free(o); | |
5172 | o = newUNOP(type, OPf_SPECIAL, | |
d58bf5aa | 5173 | newGVOP(OP_GV, 0, gv_fetchpv("main::ARGV", TRUE, SVt_PVAV))); |
8990e307 | 5174 | } |
11343788 | 5175 | return ck_fun(o); |
79072805 | 5176 | } |
11343788 | 5177 | return o; |
79072805 LW |
5178 | } |
5179 | ||
5180 | OP * | |
cea2e8a9 | 5181 | Perl_ck_eval(pTHX_ OP *o) |
79072805 | 5182 | { |
3280af22 | 5183 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 MB |
5184 | if (o->op_flags & OPf_KIDS) { |
5185 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
79072805 | 5186 | |
93a17b20 | 5187 | if (!kid) { |
11343788 MB |
5188 | o->op_flags &= ~OPf_KIDS; |
5189 | null(o); | |
79072805 LW |
5190 | } |
5191 | else if (kid->op_type == OP_LINESEQ) { | |
5192 | LOGOP *enter; | |
5193 | ||
11343788 MB |
5194 | kid->op_next = o->op_next; |
5195 | cUNOPo->op_first = 0; | |
5196 | op_free(o); | |
79072805 | 5197 | |
b7dc083c | 5198 | NewOp(1101, enter, 1, LOGOP); |
79072805 | 5199 | enter->op_type = OP_ENTERTRY; |
22c35a8c | 5200 | enter->op_ppaddr = PL_ppaddr[OP_ENTERTRY]; |
79072805 LW |
5201 | enter->op_private = 0; |
5202 | ||
5203 | /* establish postfix order */ | |
5204 | enter->op_next = (OP*)enter; | |
5205 | ||
11343788 MB |
5206 | o = prepend_elem(OP_LINESEQ, (OP*)enter, (OP*)kid); |
5207 | o->op_type = OP_LEAVETRY; | |
22c35a8c | 5208 | o->op_ppaddr = PL_ppaddr[OP_LEAVETRY]; |
11343788 MB |
5209 | enter->op_other = o; |
5210 | return o; | |
79072805 | 5211 | } |
c7cc6f1c | 5212 | else |
473986ff | 5213 | scalar((OP*)kid); |
79072805 LW |
5214 | } |
5215 | else { | |
11343788 | 5216 | op_free(o); |
54b9620d | 5217 | o = newUNOP(OP_ENTEREVAL, 0, newDEFSVOP()); |
79072805 | 5218 | } |
3280af22 | 5219 | o->op_targ = (PADOFFSET)PL_hints; |
11343788 | 5220 | return o; |
79072805 LW |
5221 | } |
5222 | ||
5223 | OP * | |
d98f61e7 GS |
5224 | Perl_ck_exit(pTHX_ OP *o) |
5225 | { | |
5226 | #ifdef VMS | |
5227 | HV *table = GvHV(PL_hintgv); | |
5228 | if (table) { | |
5229 | SV **svp = hv_fetch(table, "vmsish_exit", 11, FALSE); | |
5230 | if (svp && *svp && SvTRUE(*svp)) | |
5231 | o->op_private |= OPpEXIT_VMSISH; | |
5232 | } | |
5233 | #endif | |
5234 | return ck_fun(o); | |
5235 | } | |
5236 | ||
5237 | OP * | |
cea2e8a9 | 5238 | Perl_ck_exec(pTHX_ OP *o) |
79072805 LW |
5239 | { |
5240 | OP *kid; | |
11343788 MB |
5241 | if (o->op_flags & OPf_STACKED) { |
5242 | o = ck_fun(o); | |
5243 | kid = cUNOPo->op_first->op_sibling; | |
8990e307 LW |
5244 | if (kid->op_type == OP_RV2GV) |
5245 | null(kid); | |
79072805 | 5246 | } |
463ee0b2 | 5247 | else |
11343788 MB |
5248 | o = listkids(o); |
5249 | return o; | |
79072805 LW |
5250 | } |
5251 | ||
5252 | OP * | |
cea2e8a9 | 5253 | Perl_ck_exists(pTHX_ OP *o) |
5f05dabc | 5254 | { |
5196be3e MB |
5255 | o = ck_fun(o); |
5256 | if (o->op_flags & OPf_KIDS) { | |
5257 | OP *kid = cUNOPo->op_first; | |
afebc493 GS |
5258 | if (kid->op_type == OP_ENTERSUB) { |
5259 | (void) ref(kid, o->op_type); | |
5260 | if (kid->op_type != OP_RV2CV && !PL_error_count) | |
5261 | Perl_croak(aTHX_ "%s argument is not a subroutine name", | |
5262 | PL_op_desc[o->op_type]); | |
5263 | o->op_private |= OPpEXISTS_SUB; | |
5264 | } | |
5265 | else if (kid->op_type == OP_AELEM) | |
01020589 GS |
5266 | o->op_flags |= OPf_SPECIAL; |
5267 | else if (kid->op_type != OP_HELEM) | |
5268 | Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element", | |
5269 | PL_op_desc[o->op_type]); | |
5f05dabc | 5270 | null(kid); |
5271 | } | |
5196be3e | 5272 | return o; |
5f05dabc | 5273 | } |
5274 | ||
22c35a8c | 5275 | #if 0 |
5f05dabc | 5276 | OP * |
cea2e8a9 | 5277 | Perl_ck_gvconst(pTHX_ register OP *o) |
79072805 LW |
5278 | { |
5279 | o = fold_constants(o); | |
5280 | if (o->op_type == OP_CONST) | |
5281 | o->op_type = OP_GV; | |
5282 | return o; | |
5283 | } | |
22c35a8c | 5284 | #endif |
79072805 LW |
5285 | |
5286 | OP * | |
cea2e8a9 | 5287 | Perl_ck_rvconst(pTHX_ register OP *o) |
79072805 | 5288 | { |
11343788 MB |
5289 | dTHR; |
5290 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
85e6fe83 | 5291 | |
3280af22 | 5292 | o->op_private |= (PL_hints & HINT_STRICT_REFS); |
79072805 | 5293 | if (kid->op_type == OP_CONST) { |
44a8e56a | 5294 | char *name; |
5295 | int iscv; | |
5296 | GV *gv; | |
779c5bc9 | 5297 | SV *kidsv = kid->op_sv; |
2d8e6c8d | 5298 | STRLEN n_a; |
44a8e56a | 5299 | |
779c5bc9 GS |
5300 | /* Is it a constant from cv_const_sv()? */ |
5301 | if (SvROK(kidsv) && SvREADONLY(kidsv)) { | |
5302 | SV *rsv = SvRV(kidsv); | |
5303 | int svtype = SvTYPE(rsv); | |
5304 | char *badtype = Nullch; | |
5305 | ||
5306 | switch (o->op_type) { | |
5307 | case OP_RV2SV: | |
5308 | if (svtype > SVt_PVMG) | |
5309 | badtype = "a SCALAR"; | |
5310 | break; | |
5311 | case OP_RV2AV: | |
5312 | if (svtype != SVt_PVAV) | |
5313 | badtype = "an ARRAY"; | |
5314 | break; | |
5315 | case OP_RV2HV: | |
5316 | if (svtype != SVt_PVHV) { | |
5317 | if (svtype == SVt_PVAV) { /* pseudohash? */ | |
5318 | SV **ksv = av_fetch((AV*)rsv, 0, FALSE); | |
5319 | if (ksv && SvROK(*ksv) | |
5320 | && SvTYPE(SvRV(*ksv)) == SVt_PVHV) | |
5321 | { | |
5322 | break; | |
5323 | } | |
5324 | } | |
5325 | badtype = "a HASH"; | |
5326 | } | |
5327 | break; | |
5328 | case OP_RV2CV: | |
5329 | if (svtype != SVt_PVCV) | |
5330 | badtype = "a CODE"; | |
5331 | break; | |
5332 | } | |
5333 | if (badtype) | |
cea2e8a9 | 5334 | Perl_croak(aTHX_ "Constant is not %s reference", badtype); |
779c5bc9 GS |
5335 | return o; |
5336 | } | |
2d8e6c8d | 5337 | name = SvPV(kidsv, n_a); |
3280af22 | 5338 | if ((PL_hints & HINT_STRICT_REFS) && (kid->op_private & OPpCONST_BARE)) { |
44a8e56a | 5339 | char *badthing = Nullch; |
5dc0d613 | 5340 | switch (o->op_type) { |
44a8e56a | 5341 | case OP_RV2SV: |
5342 | badthing = "a SCALAR"; | |
5343 | break; | |
5344 | case OP_RV2AV: | |
5345 | badthing = "an ARRAY"; | |
5346 | break; | |
5347 | case OP_RV2HV: | |
5348 | badthing = "a HASH"; | |
5349 | break; | |
5350 | } | |
5351 | if (badthing) | |
cea2e8a9 | 5352 | Perl_croak(aTHX_ |
44a8e56a | 5353 | "Can't use bareword (\"%s\") as %s ref while \"strict refs\" in use", |
5354 | name, badthing); | |
5355 | } | |
93233ece CS |
5356 | /* |
5357 | * This is a little tricky. We only want to add the symbol if we | |
5358 | * didn't add it in the lexer. Otherwise we get duplicate strict | |
5359 | * warnings. But if we didn't add it in the lexer, we must at | |
5360 | * least pretend like we wanted to add it even if it existed before, | |
5361 | * or we get possible typo warnings. OPpCONST_ENTERED says | |
5362 | * whether the lexer already added THIS instance of this symbol. | |
5363 | */ | |
5196be3e | 5364 | iscv = (o->op_type == OP_RV2CV) * 2; |
93233ece | 5365 | do { |
44a8e56a | 5366 | gv = gv_fetchpv(name, |
748a9306 | 5367 | iscv | !(kid->op_private & OPpCONST_ENTERED), |
a0d0e21e LW |
5368 | iscv |
5369 | ? SVt_PVCV | |
11343788 | 5370 | : o->op_type == OP_RV2SV |
a0d0e21e | 5371 | ? SVt_PV |
11343788 | 5372 | : o->op_type == OP_RV2AV |
a0d0e21e | 5373 | ? SVt_PVAV |
11343788 | 5374 | : o->op_type == OP_RV2HV |
a0d0e21e LW |
5375 | ? SVt_PVHV |
5376 | : SVt_PVGV); | |
93233ece CS |
5377 | } while (!gv && !(kid->op_private & OPpCONST_ENTERED) && !iscv++); |
5378 | if (gv) { | |
5379 | kid->op_type = OP_GV; | |
5380 | SvREFCNT_dec(kid->op_sv); | |
350de78d | 5381 | #ifdef USE_ITHREADS |
638eceb6 | 5382 | /* XXX hack: dependence on sizeof(PADOP) <= sizeof(SVOP) */ |
350de78d | 5383 | kPADOP->op_padix = pad_alloc(OP_GV, SVs_PADTMP); |
63caf608 | 5384 | SvREFCNT_dec(PL_curpad[kPADOP->op_padix]); |
743e66e6 | 5385 | GvIN_PAD_on(gv); |
350de78d GS |
5386 | PL_curpad[kPADOP->op_padix] = SvREFCNT_inc(gv); |
5387 | #else | |
93233ece | 5388 | kid->op_sv = SvREFCNT_inc(gv); |
350de78d | 5389 | #endif |
76cd736e | 5390 | kid->op_ppaddr = PL_ppaddr[OP_GV]; |
a0d0e21e | 5391 | } |
79072805 | 5392 | } |
11343788 | 5393 | return o; |
79072805 LW |
5394 | } |
5395 | ||
5396 | OP * | |
cea2e8a9 | 5397 | Perl_ck_ftst(pTHX_ OP *o) |
79072805 | 5398 | { |
11343788 MB |
5399 | dTHR; |
5400 | I32 type = o->op_type; | |
79072805 | 5401 | |
d0dca557 JD |
5402 | if (o->op_flags & OPf_REF) { |
5403 | /* nothing */ | |
5404 | } | |
5405 | else if (o->op_flags & OPf_KIDS && cUNOPo->op_first->op_type != OP_STUB) { | |
11343788 | 5406 | SVOP *kid = (SVOP*)cUNOPo->op_first; |
79072805 LW |
5407 | |
5408 | if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { | |
2d8e6c8d | 5409 | STRLEN n_a; |
a0d0e21e | 5410 | OP *newop = newGVOP(type, OPf_REF, |
2d8e6c8d | 5411 | gv_fetchpv(SvPVx(kid->op_sv, n_a), TRUE, SVt_PVIO)); |
11343788 | 5412 | op_free(o); |
d0dca557 | 5413 | o = newop; |
79072805 LW |
5414 | } |
5415 | } | |
5416 | else { | |
11343788 | 5417 | op_free(o); |
79072805 | 5418 | if (type == OP_FTTTY) |
d0dca557 | 5419 | o = newGVOP(type, OPf_REF, gv_fetchpv("main::STDIN", TRUE, |
85e6fe83 | 5420 | SVt_PVIO)); |
79072805 | 5421 | else |
d0dca557 | 5422 | o = newUNOP(type, 0, newDEFSVOP()); |
79072805 | 5423 | } |
d0dca557 JD |
5424 | #ifdef USE_LOCALE |
5425 | if (type == OP_FTTEXT || type == OP_FTBINARY) { | |
5426 | o->op_private = 0; | |
5427 | if (PL_hints & HINT_LOCALE) | |
5428 | o->op_private |= OPpLOCALE; | |
5429 | } | |
5430 | #endif | |
11343788 | 5431 | return o; |
79072805 LW |
5432 | } |
5433 | ||
5434 | OP * | |
cea2e8a9 | 5435 | Perl_ck_fun(pTHX_ OP *o) |
79072805 | 5436 | { |
11343788 | 5437 | dTHR; |
79072805 LW |
5438 | register OP *kid; |
5439 | OP **tokid; | |
5440 | OP *sibl; | |
5441 | I32 numargs = 0; | |
11343788 | 5442 | int type = o->op_type; |
22c35a8c | 5443 | register I32 oa = PL_opargs[type] >> OASHIFT; |
aeea060c | 5444 | |
11343788 | 5445 | if (o->op_flags & OPf_STACKED) { |
79072805 LW |
5446 | if ((oa & OA_OPTIONAL) && (oa >> 4) && !((oa >> 4) & OA_OPTIONAL)) |
5447 | oa &= ~OA_OPTIONAL; | |
5448 | else | |
11343788 | 5449 | return no_fh_allowed(o); |
79072805 LW |
5450 | } |
5451 | ||
11343788 | 5452 | if (o->op_flags & OPf_KIDS) { |
2d8e6c8d | 5453 | STRLEN n_a; |
11343788 MB |
5454 | tokid = &cLISTOPo->op_first; |
5455 | kid = cLISTOPo->op_first; | |
8990e307 | 5456 | if (kid->op_type == OP_PUSHMARK || |
155aba94 | 5457 | (kid->op_type == OP_NULL && kid->op_targ == OP_PUSHMARK)) |
8990e307 | 5458 | { |
79072805 LW |
5459 | tokid = &kid->op_sibling; |
5460 | kid = kid->op_sibling; | |
5461 | } | |
22c35a8c | 5462 | if (!kid && PL_opargs[type] & OA_DEFGV) |
54b9620d | 5463 | *tokid = kid = newDEFSVOP(); |
79072805 LW |
5464 | |
5465 | while (oa && kid) { | |
5466 | numargs++; | |
5467 | sibl = kid->op_sibling; | |
5468 | switch (oa & 7) { | |
5469 | case OA_SCALAR: | |
62c18ce2 GS |
5470 | /* list seen where single (scalar) arg expected? */ |
5471 | if (numargs == 1 && !(oa >> 4) | |
5472 | && kid->op_type == OP_LIST && type != OP_SCALAR) | |
5473 | { | |
5474 | return too_many_arguments(o,PL_op_desc[type]); | |
5475 | } | |
79072805 LW |
5476 | scalar(kid); |
5477 | break; | |
5478 | case OA_LIST: | |
5479 | if (oa < 16) { | |
5480 | kid = 0; | |
5481 | continue; | |
5482 | } | |
5483 | else | |
5484 | list(kid); | |
5485 | break; | |
5486 | case OA_AVREF: | |
5487 | if (kid->op_type == OP_CONST && | |
62c18ce2 GS |
5488 | (kid->op_private & OPpCONST_BARE)) |
5489 | { | |
2d8e6c8d | 5490 | char *name = SvPVx(((SVOP*)kid)->op_sv, n_a); |
79072805 | 5491 | OP *newop = newAVREF(newGVOP(OP_GV, 0, |
85e6fe83 | 5492 | gv_fetchpv(name, TRUE, SVt_PVAV) )); |
e476b1b5 GS |
5493 | if (ckWARN(WARN_DEPRECATED)) |
5494 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
57def98f | 5495 | "Array @%s missing the @ in argument %"IVdf" of %s()", |
cf2093f6 | 5496 | name, (IV)numargs, PL_op_desc[type]); |
79072805 LW |
5497 | op_free(kid); |
5498 | kid = newop; | |
5499 | kid->op_sibling = sibl; | |
5500 | *tokid = kid; | |
5501 | } | |
8990e307 | 5502 | else if (kid->op_type != OP_RV2AV && kid->op_type != OP_PADAV) |
35cd451c | 5503 | bad_type(numargs, "array", PL_op_desc[type], kid); |
a0d0e21e | 5504 | mod(kid, type); |
79072805 LW |
5505 | break; |
5506 | case OA_HVREF: | |
5507 | if (kid->op_type == OP_CONST && | |
62c18ce2 GS |
5508 | (kid->op_private & OPpCONST_BARE)) |
5509 | { | |
2d8e6c8d | 5510 | char *name = SvPVx(((SVOP*)kid)->op_sv, n_a); |
79072805 | 5511 | OP *newop = newHVREF(newGVOP(OP_GV, 0, |
85e6fe83 | 5512 | gv_fetchpv(name, TRUE, SVt_PVHV) )); |
e476b1b5 GS |
5513 | if (ckWARN(WARN_DEPRECATED)) |
5514 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
57def98f | 5515 | "Hash %%%s missing the %% in argument %"IVdf" of %s()", |
cf2093f6 | 5516 | name, (IV)numargs, PL_op_desc[type]); |
79072805 LW |
5517 | op_free(kid); |
5518 | kid = newop; | |
5519 | kid->op_sibling = sibl; | |
5520 | *tokid = kid; | |
5521 | } | |
8990e307 | 5522 | else if (kid->op_type != OP_RV2HV && kid->op_type != OP_PADHV) |
35cd451c | 5523 | bad_type(numargs, "hash", PL_op_desc[type], kid); |
a0d0e21e | 5524 | mod(kid, type); |
79072805 LW |
5525 | break; |
5526 | case OA_CVREF: | |
5527 | { | |
a0d0e21e | 5528 | OP *newop = newUNOP(OP_NULL, 0, kid); |
79072805 LW |
5529 | kid->op_sibling = 0; |
5530 | linklist(kid); | |
5531 | newop->op_next = newop; | |
5532 | kid = newop; | |
5533 | kid->op_sibling = sibl; | |
5534 | *tokid = kid; | |
5535 | } | |
5536 | break; | |
5537 | case OA_FILEREF: | |
c340be78 | 5538 | if (kid->op_type != OP_GV && kid->op_type != OP_RV2GV) { |
79072805 | 5539 | if (kid->op_type == OP_CONST && |
62c18ce2 GS |
5540 | (kid->op_private & OPpCONST_BARE)) |
5541 | { | |
79072805 | 5542 | OP *newop = newGVOP(OP_GV, 0, |
2d8e6c8d | 5543 | gv_fetchpv(SvPVx(((SVOP*)kid)->op_sv, n_a), TRUE, |
85e6fe83 | 5544 | SVt_PVIO) ); |
79072805 LW |
5545 | op_free(kid); |
5546 | kid = newop; | |
5547 | } | |
1ea32a52 GS |
5548 | else if (kid->op_type == OP_READLINE) { |
5549 | /* neophyte patrol: open(<FH>), close(<FH>) etc. */ | |
5550 | bad_type(numargs, "HANDLE", PL_op_desc[o->op_type], kid); | |
5551 | } | |
79072805 | 5552 | else { |
35cd451c | 5553 | I32 flags = OPf_SPECIAL; |
a6c40364 | 5554 | I32 priv = 0; |
2c8ac474 GS |
5555 | PADOFFSET targ = 0; |
5556 | ||
35cd451c | 5557 | /* is this op a FH constructor? */ |
853846ea | 5558 | if (is_handle_constructor(o,numargs)) { |
2c8ac474 GS |
5559 | char *name = Nullch; |
5560 | STRLEN len; | |
5561 | ||
5562 | flags = 0; | |
5563 | /* Set a flag to tell rv2gv to vivify | |
853846ea NIS |
5564 | * need to "prove" flag does not mean something |
5565 | * else already - NI-S 1999/05/07 | |
2c8ac474 GS |
5566 | */ |
5567 | priv = OPpDEREF; | |
5568 | if (kid->op_type == OP_PADSV) { | |
5569 | SV **namep = av_fetch(PL_comppad_name, | |
5570 | kid->op_targ, 4); | |
5571 | if (namep && *namep) | |
5572 | name = SvPV(*namep, len); | |
5573 | } | |
5574 | else if (kid->op_type == OP_RV2SV | |
5575 | && kUNOP->op_first->op_type == OP_GV) | |
5576 | { | |
5577 | GV *gv = cGVOPx_gv(kUNOP->op_first); | |
5578 | name = GvNAME(gv); | |
5579 | len = GvNAMELEN(gv); | |
5580 | } | |
afd1915d GS |
5581 | else if (kid->op_type == OP_AELEM |
5582 | || kid->op_type == OP_HELEM) | |
5583 | { | |
5584 | name = "__ANONIO__"; | |
5585 | len = 10; | |
5586 | mod(kid,type); | |
5587 | } | |
2c8ac474 GS |
5588 | if (name) { |
5589 | SV *namesv; | |
5590 | targ = pad_alloc(OP_RV2GV, SVs_PADTMP); | |
5591 | namesv = PL_curpad[targ]; | |
155aba94 | 5592 | (void)SvUPGRADE(namesv, SVt_PV); |
2c8ac474 GS |
5593 | if (*name != '$') |
5594 | sv_setpvn(namesv, "$", 1); | |
5595 | sv_catpvn(namesv, name, len); | |
5596 | } | |
853846ea | 5597 | } |
79072805 | 5598 | kid->op_sibling = 0; |
35cd451c | 5599 | kid = newUNOP(OP_RV2GV, flags, scalar(kid)); |
2c8ac474 GS |
5600 | kid->op_targ = targ; |
5601 | kid->op_private |= priv; | |
79072805 LW |
5602 | } |
5603 | kid->op_sibling = sibl; | |
5604 | *tokid = kid; | |
5605 | } | |
5606 | scalar(kid); | |
5607 | break; | |
5608 | case OA_SCALARREF: | |
a0d0e21e | 5609 | mod(scalar(kid), type); |
79072805 LW |
5610 | break; |
5611 | } | |
5612 | oa >>= 4; | |
5613 | tokid = &kid->op_sibling; | |
5614 | kid = kid->op_sibling; | |
5615 | } | |
11343788 | 5616 | o->op_private |= numargs; |
79072805 | 5617 | if (kid) |
22c35a8c | 5618 | return too_many_arguments(o,PL_op_desc[o->op_type]); |
11343788 | 5619 | listkids(o); |
79072805 | 5620 | } |
22c35a8c | 5621 | else if (PL_opargs[type] & OA_DEFGV) { |
11343788 | 5622 | op_free(o); |
54b9620d | 5623 | return newUNOP(type, 0, newDEFSVOP()); |
a0d0e21e LW |
5624 | } |
5625 | ||
79072805 LW |
5626 | if (oa) { |
5627 | while (oa & OA_OPTIONAL) | |
5628 | oa >>= 4; | |
5629 | if (oa && oa != OA_LIST) | |
22c35a8c | 5630 | return too_few_arguments(o,PL_op_desc[o->op_type]); |
79072805 | 5631 | } |
11343788 | 5632 | return o; |
79072805 LW |
5633 | } |
5634 | ||
5635 | OP * | |
cea2e8a9 | 5636 | Perl_ck_glob(pTHX_ OP *o) |
79072805 | 5637 | { |
fb73857a | 5638 | GV *gv; |
5639 | ||
649da076 | 5640 | o = ck_fun(o); |
1f2bfc8a | 5641 | if ((o->op_flags & OPf_KIDS) && !cLISTOPo->op_first->op_sibling) |
54b9620d | 5642 | append_elem(OP_GLOB, o, newDEFSVOP()); |
fb73857a | 5643 | |
5644 | if (!((gv = gv_fetchpv("glob", FALSE, SVt_PVCV)) && GvIMPORTED_CV(gv))) | |
5645 | gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); | |
b1cb66bf | 5646 | |
52bb0670 | 5647 | #if !defined(PERL_EXTERNAL_GLOB) |
72b16652 GS |
5648 | /* XXX this can be tightened up and made more failsafe. */ |
5649 | if (!gv) { | |
72b16652 | 5650 | ENTER; |
e4783991 GS |
5651 | Perl_load_module(aTHX_ 0, newSVpvn("File::Glob", 10), Nullsv, |
5652 | /* null-terminated import list */ | |
5653 | newSVpvn(":globally", 9), Nullsv); | |
72b16652 GS |
5654 | gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); |
5655 | LEAVE; | |
5656 | } | |
52bb0670 | 5657 | #endif /* PERL_EXTERNAL_GLOB */ |
72b16652 | 5658 | |
b1cb66bf | 5659 | if (gv && GvIMPORTED_CV(gv)) { |
5196be3e | 5660 | append_elem(OP_GLOB, o, |
80252599 | 5661 | newSVOP(OP_CONST, 0, newSViv(PL_glob_index++))); |
1f2bfc8a | 5662 | o->op_type = OP_LIST; |
22c35a8c | 5663 | o->op_ppaddr = PL_ppaddr[OP_LIST]; |
1f2bfc8a | 5664 | cLISTOPo->op_first->op_type = OP_PUSHMARK; |
22c35a8c | 5665 | cLISTOPo->op_first->op_ppaddr = PL_ppaddr[OP_PUSHMARK]; |
1f2bfc8a | 5666 | o = newUNOP(OP_ENTERSUB, OPf_STACKED, |
aeea060c | 5667 | append_elem(OP_LIST, o, |
1f2bfc8a MB |
5668 | scalar(newUNOP(OP_RV2CV, 0, |
5669 | newGVOP(OP_GV, 0, gv))))); | |
d58bf5aa MB |
5670 | o = newUNOP(OP_NULL, 0, ck_subr(o)); |
5671 | o->op_targ = OP_GLOB; /* hint at what it used to be */ | |
5672 | return o; | |
b1cb66bf | 5673 | } |
5674 | gv = newGVgen("main"); | |
a0d0e21e | 5675 | gv_IOadd(gv); |
11343788 MB |
5676 | append_elem(OP_GLOB, o, newGVOP(OP_GV, 0, gv)); |
5677 | scalarkids(o); | |
649da076 | 5678 | return o; |
79072805 LW |
5679 | } |
5680 | ||
5681 | OP * | |
cea2e8a9 | 5682 | Perl_ck_grep(pTHX_ OP *o) |
79072805 LW |
5683 | { |
5684 | LOGOP *gwop; | |
5685 | OP *kid; | |
11343788 | 5686 | OPCODE type = o->op_type == OP_GREPSTART ? OP_GREPWHILE : OP_MAPWHILE; |
79072805 | 5687 | |
22c35a8c | 5688 | o->op_ppaddr = PL_ppaddr[OP_GREPSTART]; |
b7dc083c | 5689 | NewOp(1101, gwop, 1, LOGOP); |
aeea060c | 5690 | |
11343788 | 5691 | if (o->op_flags & OPf_STACKED) { |
a0d0e21e | 5692 | OP* k; |
11343788 MB |
5693 | o = ck_sort(o); |
5694 | kid = cLISTOPo->op_first->op_sibling; | |
5695 | for (k = cLISTOPo->op_first->op_sibling->op_next; k; k = k->op_next) { | |
a0d0e21e LW |
5696 | kid = k; |
5697 | } | |
5698 | kid->op_next = (OP*)gwop; | |
11343788 | 5699 | o->op_flags &= ~OPf_STACKED; |
93a17b20 | 5700 | } |
11343788 | 5701 | kid = cLISTOPo->op_first->op_sibling; |
a0d0e21e LW |
5702 | if (type == OP_MAPWHILE) |
5703 | list(kid); | |
5704 | else | |
5705 | scalar(kid); | |
11343788 | 5706 | o = ck_fun(o); |
3280af22 | 5707 | if (PL_error_count) |
11343788 | 5708 | return o; |
aeea060c | 5709 | kid = cLISTOPo->op_first->op_sibling; |
79072805 | 5710 | if (kid->op_type != OP_NULL) |
cea2e8a9 | 5711 | Perl_croak(aTHX_ "panic: ck_grep"); |
79072805 LW |
5712 | kid = kUNOP->op_first; |
5713 | ||
a0d0e21e | 5714 | gwop->op_type = type; |
22c35a8c | 5715 | gwop->op_ppaddr = PL_ppaddr[type]; |
11343788 | 5716 | gwop->op_first = listkids(o); |
79072805 LW |
5717 | gwop->op_flags |= OPf_KIDS; |
5718 | gwop->op_private = 1; | |
5719 | gwop->op_other = LINKLIST(kid); | |
a0d0e21e | 5720 | gwop->op_targ = pad_alloc(type, SVs_PADTMP); |
79072805 LW |
5721 | kid->op_next = (OP*)gwop; |
5722 | ||
11343788 | 5723 | kid = cLISTOPo->op_first->op_sibling; |
a0d0e21e | 5724 | if (!kid || !kid->op_sibling) |
22c35a8c | 5725 | return too_few_arguments(o,PL_op_desc[o->op_type]); |
a0d0e21e LW |
5726 | for (kid = kid->op_sibling; kid; kid = kid->op_sibling) |
5727 | mod(kid, OP_GREPSTART); | |
5728 | ||
79072805 LW |
5729 | return (OP*)gwop; |
5730 | } | |
5731 | ||
5732 | OP * | |
cea2e8a9 | 5733 | Perl_ck_index(pTHX_ OP *o) |
79072805 | 5734 | { |
11343788 MB |
5735 | if (o->op_flags & OPf_KIDS) { |
5736 | OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
0b71040e LW |
5737 | if (kid) |
5738 | kid = kid->op_sibling; /* get past "big" */ | |
79072805 | 5739 | if (kid && kid->op_type == OP_CONST) |
2779dcf1 | 5740 | fbm_compile(((SVOP*)kid)->op_sv, 0); |
79072805 | 5741 | } |
11343788 | 5742 | return ck_fun(o); |
79072805 LW |
5743 | } |
5744 | ||
5745 | OP * | |
cea2e8a9 | 5746 | Perl_ck_lengthconst(pTHX_ OP *o) |
79072805 LW |
5747 | { |
5748 | /* XXX length optimization goes here */ | |
11343788 | 5749 | return ck_fun(o); |
79072805 LW |
5750 | } |
5751 | ||
5752 | OP * | |
cea2e8a9 | 5753 | Perl_ck_lfun(pTHX_ OP *o) |
79072805 | 5754 | { |
5dc0d613 MB |
5755 | OPCODE type = o->op_type; |
5756 | return modkids(ck_fun(o), type); | |
79072805 LW |
5757 | } |
5758 | ||
5759 | OP * | |
cea2e8a9 | 5760 | Perl_ck_defined(pTHX_ OP *o) /* 19990527 MJD */ |
69794302 | 5761 | { |
20ce7b12 | 5762 | dTHR; |
d0334bed GS |
5763 | if ((o->op_flags & OPf_KIDS) && ckWARN(WARN_DEPRECATED)) { |
5764 | switch (cUNOPo->op_first->op_type) { | |
5765 | case OP_RV2AV: | |
7e291ef1 | 5766 | break; /* Globals via GV can be undef */ |
d0334bed GS |
5767 | case OP_PADAV: |
5768 | case OP_AASSIGN: /* Is this a good idea? */ | |
5769 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
f10b0346 | 5770 | "defined(@array) is deprecated"); |
d0334bed | 5771 | Perl_warner(aTHX_ WARN_DEPRECATED, |
cc507455 | 5772 | "\t(Maybe you should just omit the defined()?)\n"); |
69794302 | 5773 | break; |
d0334bed | 5774 | case OP_RV2HV: |
7e291ef1 | 5775 | break; /* Globals via GV can be undef */ |
d0334bed GS |
5776 | case OP_PADHV: |
5777 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
894356b3 | 5778 | "defined(%%hash) is deprecated"); |
d0334bed | 5779 | Perl_warner(aTHX_ WARN_DEPRECATED, |
cc507455 | 5780 | "\t(Maybe you should just omit the defined()?)\n"); |
d0334bed GS |
5781 | break; |
5782 | default: | |
5783 | /* no warning */ | |
5784 | break; | |
5785 | } | |
69794302 MJD |
5786 | } |
5787 | return ck_rfun(o); | |
5788 | } | |
5789 | ||
5790 | OP * | |
cea2e8a9 | 5791 | Perl_ck_rfun(pTHX_ OP *o) |
8990e307 | 5792 | { |
5dc0d613 MB |
5793 | OPCODE type = o->op_type; |
5794 | return refkids(ck_fun(o), type); | |
8990e307 LW |
5795 | } |
5796 | ||
5797 | OP * | |
cea2e8a9 | 5798 | Perl_ck_listiob(pTHX_ OP *o) |
79072805 LW |
5799 | { |
5800 | register OP *kid; | |
aeea060c | 5801 | |
11343788 | 5802 | kid = cLISTOPo->op_first; |
79072805 | 5803 | if (!kid) { |
11343788 MB |
5804 | o = force_list(o); |
5805 | kid = cLISTOPo->op_first; | |
79072805 LW |
5806 | } |
5807 | if (kid->op_type == OP_PUSHMARK) | |
5808 | kid = kid->op_sibling; | |
11343788 | 5809 | if (kid && o->op_flags & OPf_STACKED) |
79072805 LW |
5810 | kid = kid->op_sibling; |
5811 | else if (kid && !kid->op_sibling) { /* print HANDLE; */ | |
5812 | if (kid->op_type == OP_CONST && kid->op_private & OPpCONST_BARE) { | |
11343788 | 5813 | o->op_flags |= OPf_STACKED; /* make it a filehandle */ |
748a9306 | 5814 | kid = newUNOP(OP_RV2GV, OPf_REF, scalar(kid)); |
11343788 MB |
5815 | cLISTOPo->op_first->op_sibling = kid; |
5816 | cLISTOPo->op_last = kid; | |
79072805 LW |
5817 | kid = kid->op_sibling; |
5818 | } | |
5819 | } | |
5820 | ||
5821 | if (!kid) | |
54b9620d | 5822 | append_elem(o->op_type, o, newDEFSVOP()); |
79072805 | 5823 | |
5dc0d613 | 5824 | o = listkids(o); |
bbce6d69 | 5825 | |
5dc0d613 | 5826 | o->op_private = 0; |
36477c24 | 5827 | #ifdef USE_LOCALE |
3280af22 | 5828 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5829 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5830 | #endif |
5831 | ||
5dc0d613 | 5832 | return o; |
bbce6d69 | 5833 | } |
5834 | ||
5835 | OP * | |
cea2e8a9 | 5836 | Perl_ck_fun_locale(pTHX_ OP *o) |
bbce6d69 | 5837 | { |
5dc0d613 | 5838 | o = ck_fun(o); |
bbce6d69 | 5839 | |
5dc0d613 | 5840 | o->op_private = 0; |
36477c24 | 5841 | #ifdef USE_LOCALE |
3280af22 | 5842 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5843 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5844 | #endif |
5845 | ||
5dc0d613 | 5846 | return o; |
bbce6d69 | 5847 | } |
5848 | ||
5849 | OP * | |
b162f9ea IZ |
5850 | Perl_ck_sassign(pTHX_ OP *o) |
5851 | { | |
5852 | OP *kid = cLISTOPo->op_first; | |
5853 | /* has a disposable target? */ | |
5854 | if ((PL_opargs[kid->op_type] & OA_TARGLEX) | |
6b66af17 GS |
5855 | && !(kid->op_flags & OPf_STACKED) |
5856 | /* Cannot steal the second time! */ | |
5857 | && !(kid->op_private & OPpTARGET_MY)) | |
b162f9ea IZ |
5858 | { |
5859 | OP *kkid = kid->op_sibling; | |
5860 | ||
5861 | /* Can just relocate the target. */ | |
2c2d71f5 JH |
5862 | if (kkid && kkid->op_type == OP_PADSV |
5863 | && !(kkid->op_private & OPpLVAL_INTRO)) | |
5864 | { | |
b162f9ea | 5865 | kid->op_targ = kkid->op_targ; |
743e66e6 | 5866 | kkid->op_targ = 0; |
b162f9ea IZ |
5867 | /* Now we do not need PADSV and SASSIGN. */ |
5868 | kid->op_sibling = o->op_sibling; /* NULL */ | |
5869 | cLISTOPo->op_first = NULL; | |
5870 | op_free(o); | |
5871 | op_free(kkid); | |
5872 | kid->op_private |= OPpTARGET_MY; /* Used for context settings */ | |
5873 | return kid; | |
5874 | } | |
5875 | } | |
5876 | return o; | |
5877 | } | |
5878 | ||
5879 | OP * | |
cea2e8a9 | 5880 | Perl_ck_scmp(pTHX_ OP *o) |
bbce6d69 | 5881 | { |
5dc0d613 | 5882 | o->op_private = 0; |
36477c24 | 5883 | #ifdef USE_LOCALE |
3280af22 | 5884 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5885 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5886 | #endif |
36477c24 | 5887 | |
5dc0d613 | 5888 | return o; |
79072805 LW |
5889 | } |
5890 | ||
5891 | OP * | |
cea2e8a9 | 5892 | Perl_ck_match(pTHX_ OP *o) |
79072805 | 5893 | { |
5dc0d613 | 5894 | o->op_private |= OPpRUNTIME; |
11343788 | 5895 | return o; |
79072805 LW |
5896 | } |
5897 | ||
5898 | OP * | |
f5d5a27c CS |
5899 | Perl_ck_method(pTHX_ OP *o) |
5900 | { | |
5901 | OP *kid = cUNOPo->op_first; | |
5902 | if (kid->op_type == OP_CONST) { | |
5903 | SV* sv = kSVOP->op_sv; | |
5904 | if (!(strchr(SvPVX(sv), ':') || strchr(SvPVX(sv), '\''))) { | |
5905 | OP *cmop; | |
155aba94 GS |
5906 | (void)SvUPGRADE(sv, SVt_PVIV); |
5907 | (void)SvIOK_on(sv); | |
f5d5a27c CS |
5908 | PERL_HASH(SvUVX(sv), SvPVX(sv), SvCUR(sv)); |
5909 | cmop = newSVOP(OP_METHOD_NAMED, 0, sv); | |
5910 | kSVOP->op_sv = Nullsv; | |
5911 | op_free(o); | |
5912 | return cmop; | |
5913 | } | |
5914 | } | |
5915 | return o; | |
5916 | } | |
5917 | ||
5918 | OP * | |
cea2e8a9 | 5919 | Perl_ck_null(pTHX_ OP *o) |
79072805 | 5920 | { |
11343788 | 5921 | return o; |
79072805 LW |
5922 | } |
5923 | ||
5924 | OP * | |
16fe6d59 GS |
5925 | Perl_ck_open(pTHX_ OP *o) |
5926 | { | |
5927 | HV *table = GvHV(PL_hintgv); | |
5928 | if (table) { | |
5929 | SV **svp; | |
5930 | I32 mode; | |
5931 | svp = hv_fetch(table, "open_IN", 7, FALSE); | |
5932 | if (svp && *svp) { | |
5933 | mode = mode_from_discipline(*svp); | |
5934 | if (mode & O_BINARY) | |
5935 | o->op_private |= OPpOPEN_IN_RAW; | |
5936 | else if (mode & O_TEXT) | |
5937 | o->op_private |= OPpOPEN_IN_CRLF; | |
5938 | } | |
5939 | ||
5940 | svp = hv_fetch(table, "open_OUT", 8, FALSE); | |
5941 | if (svp && *svp) { | |
5942 | mode = mode_from_discipline(*svp); | |
5943 | if (mode & O_BINARY) | |
5944 | o->op_private |= OPpOPEN_OUT_RAW; | |
5945 | else if (mode & O_TEXT) | |
5946 | o->op_private |= OPpOPEN_OUT_CRLF; | |
5947 | } | |
5948 | } | |
5949 | if (o->op_type == OP_BACKTICK) | |
5950 | return o; | |
5951 | return ck_fun(o); | |
5952 | } | |
5953 | ||
5954 | OP * | |
cea2e8a9 | 5955 | Perl_ck_repeat(pTHX_ OP *o) |
79072805 | 5956 | { |
11343788 MB |
5957 | if (cBINOPo->op_first->op_flags & OPf_PARENS) { |
5958 | o->op_private |= OPpREPEAT_DOLIST; | |
5959 | cBINOPo->op_first = force_list(cBINOPo->op_first); | |
79072805 LW |
5960 | } |
5961 | else | |
11343788 MB |
5962 | scalar(o); |
5963 | return o; | |
79072805 LW |
5964 | } |
5965 | ||
5966 | OP * | |
cea2e8a9 | 5967 | Perl_ck_require(pTHX_ OP *o) |
8990e307 | 5968 | { |
11343788 MB |
5969 | if (o->op_flags & OPf_KIDS) { /* Shall we supply missing .pm? */ |
5970 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
8990e307 LW |
5971 | |
5972 | if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { | |
8990e307 | 5973 | char *s; |
a0d0e21e LW |
5974 | for (s = SvPVX(kid->op_sv); *s; s++) { |
5975 | if (*s == ':' && s[1] == ':') { | |
5976 | *s = '/'; | |
1aef975c | 5977 | Move(s+2, s+1, strlen(s+2)+1, char); |
a0d0e21e LW |
5978 | --SvCUR(kid->op_sv); |
5979 | } | |
8990e307 | 5980 | } |
ce3b816e GS |
5981 | if (SvREADONLY(kid->op_sv)) { |
5982 | SvREADONLY_off(kid->op_sv); | |
5983 | sv_catpvn(kid->op_sv, ".pm", 3); | |
5984 | SvREADONLY_on(kid->op_sv); | |
5985 | } | |
5986 | else | |
5987 | sv_catpvn(kid->op_sv, ".pm", 3); | |
8990e307 LW |
5988 | } |
5989 | } | |
11343788 | 5990 | return ck_fun(o); |
8990e307 LW |
5991 | } |
5992 | ||
22c35a8c | 5993 | #if 0 |
8990e307 | 5994 | OP * |
cea2e8a9 | 5995 | Perl_ck_retarget(pTHX_ OP *o) |
79072805 | 5996 | { |
cea2e8a9 | 5997 | Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__); |
79072805 | 5998 | /* STUB */ |
11343788 | 5999 | return o; |
79072805 | 6000 | } |
22c35a8c | 6001 | #endif |
79072805 LW |
6002 | |
6003 | OP * | |
cea2e8a9 | 6004 | Perl_ck_select(pTHX_ OP *o) |
79072805 | 6005 | { |
c07a80fd | 6006 | OP* kid; |
11343788 MB |
6007 | if (o->op_flags & OPf_KIDS) { |
6008 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
2304df62 | 6009 | if (kid && kid->op_sibling) { |
11343788 | 6010 | o->op_type = OP_SSELECT; |
22c35a8c | 6011 | o->op_ppaddr = PL_ppaddr[OP_SSELECT]; |
11343788 MB |
6012 | o = ck_fun(o); |
6013 | return fold_constants(o); | |
79072805 LW |
6014 | } |
6015 | } | |
11343788 MB |
6016 | o = ck_fun(o); |
6017 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
c07a80fd | 6018 | if (kid && kid->op_type == OP_RV2GV) |
6019 | kid->op_private &= ~HINT_STRICT_REFS; | |
11343788 | 6020 | return o; |
79072805 LW |
6021 | } |
6022 | ||
6023 | OP * | |
cea2e8a9 | 6024 | Perl_ck_shift(pTHX_ OP *o) |
79072805 | 6025 | { |
11343788 | 6026 | I32 type = o->op_type; |
79072805 | 6027 | |
11343788 | 6028 | if (!(o->op_flags & OPf_KIDS)) { |
6d4ff0d2 MB |
6029 | OP *argop; |
6030 | ||
11343788 | 6031 | op_free(o); |
6d4ff0d2 | 6032 | #ifdef USE_THREADS |
533c011a | 6033 | if (!CvUNIQUE(PL_compcv)) { |
6d4ff0d2 | 6034 | argop = newOP(OP_PADAV, OPf_REF); |
6b88bc9c | 6035 | argop->op_targ = 0; /* PL_curpad[0] is @_ */ |
6d4ff0d2 MB |
6036 | } |
6037 | else { | |
6038 | argop = newUNOP(OP_RV2AV, 0, | |
6039 | scalar(newGVOP(OP_GV, 0, | |
6040 | gv_fetchpv("ARGV", TRUE, SVt_PVAV)))); | |
6041 | } | |
6042 | #else | |
6043 | argop = newUNOP(OP_RV2AV, 0, | |
3280af22 NIS |
6044 | scalar(newGVOP(OP_GV, 0, !CvUNIQUE(PL_compcv) ? |
6045 | PL_defgv : gv_fetchpv("ARGV", TRUE, SVt_PVAV)))); | |
6d4ff0d2 MB |
6046 | #endif /* USE_THREADS */ |
6047 | return newUNOP(type, 0, scalar(argop)); | |
79072805 | 6048 | } |
11343788 | 6049 | return scalar(modkids(ck_fun(o), type)); |
79072805 LW |
6050 | } |
6051 | ||
6052 | OP * | |
cea2e8a9 | 6053 | Perl_ck_sort(pTHX_ OP *o) |
79072805 | 6054 | { |
8e3f9bdf | 6055 | OP *firstkid; |
5dc0d613 | 6056 | o->op_private = 0; |
36477c24 | 6057 | #ifdef USE_LOCALE |
3280af22 | 6058 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 6059 | o->op_private |= OPpLOCALE; |
bbce6d69 | 6060 | #endif |
6061 | ||
9ea6e965 | 6062 | if (o->op_type == OP_SORT && o->op_flags & OPf_STACKED) |
51a19bc0 | 6063 | simplify_sort(o); |
8e3f9bdf GS |
6064 | firstkid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
6065 | if (o->op_flags & OPf_STACKED) { /* may have been cleared */ | |
463ee0b2 | 6066 | OP *k; |
8e3f9bdf | 6067 | OP *kid = cUNOPx(firstkid)->op_first; /* get past null */ |
79072805 | 6068 | |
463ee0b2 | 6069 | if (kid->op_type == OP_SCOPE || kid->op_type == OP_LEAVE) { |
79072805 | 6070 | linklist(kid); |
463ee0b2 LW |
6071 | if (kid->op_type == OP_SCOPE) { |
6072 | k = kid->op_next; | |
6073 | kid->op_next = 0; | |
79072805 | 6074 | } |
463ee0b2 | 6075 | else if (kid->op_type == OP_LEAVE) { |
11343788 | 6076 | if (o->op_type == OP_SORT) { |
748a9306 LW |
6077 | null(kid); /* wipe out leave */ |
6078 | kid->op_next = kid; | |
463ee0b2 | 6079 | |
748a9306 LW |
6080 | for (k = kLISTOP->op_first->op_next; k; k = k->op_next) { |
6081 | if (k->op_next == kid) | |
6082 | k->op_next = 0; | |
71a29c3c GS |
6083 | /* don't descend into loops */ |
6084 | else if (k->op_type == OP_ENTERLOOP | |
6085 | || k->op_type == OP_ENTERITER) | |
6086 | { | |
6087 | k = cLOOPx(k)->op_lastop; | |
6088 | } | |
748a9306 | 6089 | } |
463ee0b2 | 6090 | } |
748a9306 LW |
6091 | else |
6092 | kid->op_next = 0; /* just disconnect the leave */ | |
a0d0e21e | 6093 | k = kLISTOP->op_first; |
463ee0b2 | 6094 | } |
a0d0e21e LW |
6095 | peep(k); |
6096 | ||
8e3f9bdf GS |
6097 | kid = firstkid; |
6098 | if (o->op_type == OP_SORT) { | |
6099 | /* provide scalar context for comparison function/block */ | |
6100 | kid = scalar(kid); | |
a0d0e21e | 6101 | kid->op_next = kid; |
8e3f9bdf | 6102 | } |
a0d0e21e LW |
6103 | else |
6104 | kid->op_next = k; | |
11343788 | 6105 | o->op_flags |= OPf_SPECIAL; |
79072805 | 6106 | } |
c6e96bcb | 6107 | else if (kid->op_type == OP_RV2SV || kid->op_type == OP_PADSV) |
8e3f9bdf GS |
6108 | null(firstkid); |
6109 | ||
6110 | firstkid = firstkid->op_sibling; | |
79072805 | 6111 | } |
bbce6d69 | 6112 | |
8e3f9bdf GS |
6113 | /* provide list context for arguments */ |
6114 | if (o->op_type == OP_SORT) | |
6115 | list(firstkid); | |
6116 | ||
11343788 | 6117 | return o; |
79072805 | 6118 | } |
bda4119b GS |
6119 | |
6120 | STATIC void | |
cea2e8a9 | 6121 | S_simplify_sort(pTHX_ OP *o) |
9c007264 | 6122 | { |
51a19bc0 | 6123 | dTHR; |
9c007264 JH |
6124 | register OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
6125 | OP *k; | |
6126 | int reversed; | |
350de78d | 6127 | GV *gv; |
9c007264 JH |
6128 | if (!(o->op_flags & OPf_STACKED)) |
6129 | return; | |
9ea6e965 GS |
6130 | GvMULTI_on(gv_fetchpv("a", TRUE, SVt_PV)); |
6131 | GvMULTI_on(gv_fetchpv("b", TRUE, SVt_PV)); | |
82092f1d | 6132 | kid = kUNOP->op_first; /* get past null */ |
9c007264 JH |
6133 | if (kid->op_type != OP_SCOPE) |
6134 | return; | |
6135 | kid = kLISTOP->op_last; /* get past scope */ | |
6136 | switch(kid->op_type) { | |
6137 | case OP_NCMP: | |
6138 | case OP_I_NCMP: | |
6139 | case OP_SCMP: | |
6140 | break; | |
6141 | default: | |
6142 | return; | |
6143 | } | |
6144 | k = kid; /* remember this node*/ | |
6145 | if (kBINOP->op_first->op_type != OP_RV2SV) | |
6146 | return; | |
6147 | kid = kBINOP->op_first; /* get past cmp */ | |
6148 | if (kUNOP->op_first->op_type != OP_GV) | |
6149 | return; | |
6150 | kid = kUNOP->op_first; /* get past rv2sv */ | |
638eceb6 | 6151 | gv = kGVOP_gv; |
350de78d | 6152 | if (GvSTASH(gv) != PL_curstash) |
9c007264 | 6153 | return; |
350de78d | 6154 | if (strEQ(GvNAME(gv), "a")) |
9c007264 | 6155 | reversed = 0; |
0f79a09d | 6156 | else if (strEQ(GvNAME(gv), "b")) |
9c007264 JH |
6157 | reversed = 1; |
6158 | else | |
6159 | return; | |
6160 | kid = k; /* back to cmp */ | |
6161 | if (kBINOP->op_last->op_type != OP_RV2SV) | |
6162 | return; | |
6163 | kid = kBINOP->op_last; /* down to 2nd arg */ | |
6164 | if (kUNOP->op_first->op_type != OP_GV) | |
6165 | return; | |
6166 | kid = kUNOP->op_first; /* get past rv2sv */ | |
638eceb6 | 6167 | gv = kGVOP_gv; |
350de78d | 6168 | if (GvSTASH(gv) != PL_curstash |
9c007264 | 6169 | || ( reversed |
350de78d GS |
6170 | ? strNE(GvNAME(gv), "a") |
6171 | : strNE(GvNAME(gv), "b"))) | |
9c007264 JH |
6172 | return; |
6173 | o->op_flags &= ~(OPf_STACKED | OPf_SPECIAL); | |
6174 | if (reversed) | |
6175 | o->op_private |= OPpSORT_REVERSE; | |
6176 | if (k->op_type == OP_NCMP) | |
6177 | o->op_private |= OPpSORT_NUMERIC; | |
6178 | if (k->op_type == OP_I_NCMP) | |
6179 | o->op_private |= OPpSORT_NUMERIC | OPpSORT_INTEGER; | |
e507f050 SM |
6180 | kid = cLISTOPo->op_first->op_sibling; |
6181 | cLISTOPo->op_first->op_sibling = kid->op_sibling; /* bypass old block */ | |
6182 | op_free(kid); /* then delete it */ | |
6183 | cLISTOPo->op_children--; | |
9c007264 | 6184 | } |
79072805 LW |
6185 | |
6186 | OP * | |
cea2e8a9 | 6187 | Perl_ck_split(pTHX_ OP *o) |
79072805 LW |
6188 | { |
6189 | register OP *kid; | |
aeea060c | 6190 | |
11343788 MB |
6191 | if (o->op_flags & OPf_STACKED) |
6192 | return no_fh_allowed(o); | |
79072805 | 6193 | |
11343788 | 6194 | kid = cLISTOPo->op_first; |
8990e307 | 6195 | if (kid->op_type != OP_NULL) |
cea2e8a9 | 6196 | Perl_croak(aTHX_ "panic: ck_split"); |
8990e307 | 6197 | kid = kid->op_sibling; |
11343788 MB |
6198 | op_free(cLISTOPo->op_first); |
6199 | cLISTOPo->op_first = kid; | |
85e6fe83 | 6200 | if (!kid) { |
79cb57f6 | 6201 | cLISTOPo->op_first = kid = newSVOP(OP_CONST, 0, newSVpvn(" ", 1)); |
11343788 | 6202 | cLISTOPo->op_last = kid; /* There was only one element previously */ |
85e6fe83 | 6203 | } |
79072805 | 6204 | |
de4bf5b3 | 6205 | if (kid->op_type != OP_MATCH || kid->op_flags & OPf_STACKED) { |
79072805 | 6206 | OP *sibl = kid->op_sibling; |
463ee0b2 | 6207 | kid->op_sibling = 0; |
79072805 | 6208 | kid = pmruntime( newPMOP(OP_MATCH, OPf_SPECIAL), kid, Nullop); |
11343788 MB |
6209 | if (cLISTOPo->op_first == cLISTOPo->op_last) |
6210 | cLISTOPo->op_last = kid; | |
6211 | cLISTOPo->op_first = kid; | |
79072805 LW |
6212 | kid->op_sibling = sibl; |
6213 | } | |
6214 | ||
6215 | kid->op_type = OP_PUSHRE; | |
22c35a8c | 6216 | kid->op_ppaddr = PL_ppaddr[OP_PUSHRE]; |
79072805 LW |
6217 | scalar(kid); |
6218 | ||
6219 | if (!kid->op_sibling) | |
54b9620d | 6220 | append_elem(OP_SPLIT, o, newDEFSVOP()); |
79072805 LW |
6221 | |
6222 | kid = kid->op_sibling; | |
6223 | scalar(kid); | |
6224 | ||
6225 | if (!kid->op_sibling) | |
11343788 | 6226 | append_elem(OP_SPLIT, o, newSVOP(OP_CONST, 0, newSViv(0))); |
79072805 LW |
6227 | |
6228 | kid = kid->op_sibling; | |
6229 | scalar(kid); | |
6230 | ||
6231 | if (kid->op_sibling) | |
22c35a8c | 6232 | return too_many_arguments(o,PL_op_desc[o->op_type]); |
79072805 | 6233 | |
11343788 | 6234 | return o; |
79072805 LW |
6235 | } |
6236 | ||
6237 | OP * | |
eb6e2d6f GS |
6238 | Perl_ck_join(pTHX_ OP *o) |
6239 | { | |
6240 | if (ckWARN(WARN_SYNTAX)) { | |
6241 | OP *kid = cLISTOPo->op_first->op_sibling; | |
6242 | if (kid && kid->op_type == OP_MATCH) { | |
6243 | char *pmstr = "STRING"; | |
6244 | if (kPMOP->op_pmregexp) | |
6245 | pmstr = kPMOP->op_pmregexp->precomp; | |
6246 | Perl_warner(aTHX_ WARN_SYNTAX, | |
6247 | "/%s/ should probably be written as \"%s\"", | |
6248 | pmstr, pmstr); | |
6249 | } | |
6250 | } | |
6251 | return ck_fun(o); | |
6252 | } | |
6253 | ||
6254 | OP * | |
cea2e8a9 | 6255 | Perl_ck_subr(pTHX_ OP *o) |
79072805 | 6256 | { |
11343788 MB |
6257 | dTHR; |
6258 | OP *prev = ((cUNOPo->op_first->op_sibling) | |
6259 | ? cUNOPo : ((UNOP*)cUNOPo->op_first))->op_first; | |
6260 | OP *o2 = prev->op_sibling; | |
4633a7c4 LW |
6261 | OP *cvop; |
6262 | char *proto = 0; | |
6263 | CV *cv = 0; | |
46fc3d4c | 6264 | GV *namegv = 0; |
4633a7c4 LW |
6265 | int optional = 0; |
6266 | I32 arg = 0; | |
2d8e6c8d | 6267 | STRLEN n_a; |
4633a7c4 | 6268 | |
d3011074 | 6269 | o->op_private |= OPpENTERSUB_HASTARG; |
11343788 | 6270 | for (cvop = o2; cvop->op_sibling; cvop = cvop->op_sibling) ; |
4633a7c4 LW |
6271 | if (cvop->op_type == OP_RV2CV) { |
6272 | SVOP* tmpop; | |
11343788 | 6273 | o->op_private |= (cvop->op_private & OPpENTERSUB_AMPER); |
4633a7c4 LW |
6274 | null(cvop); /* disable rv2cv */ |
6275 | tmpop = (SVOP*)((UNOP*)cvop)->op_first; | |
76cd736e | 6276 | if (tmpop->op_type == OP_GV && !(o->op_private & OPpENTERSUB_AMPER)) { |
638eceb6 | 6277 | GV *gv = cGVOPx_gv(tmpop); |
350de78d | 6278 | cv = GvCVu(gv); |
76cd736e GS |
6279 | if (!cv) |
6280 | tmpop->op_private |= OPpEARLY_CV; | |
6281 | else if (SvPOK(cv)) { | |
350de78d | 6282 | namegv = CvANON(cv) ? gv : CvGV(cv); |
2d8e6c8d | 6283 | proto = SvPV((SV*)cv, n_a); |
46fc3d4c | 6284 | } |
4633a7c4 LW |
6285 | } |
6286 | } | |
f5d5a27c | 6287 | else if (cvop->op_type == OP_METHOD || cvop->op_type == OP_METHOD_NAMED) { |
7a52d87a GS |
6288 | if (o2->op_type == OP_CONST) |
6289 | o2->op_private &= ~OPpCONST_STRICT; | |
58a40671 GS |
6290 | else if (o2->op_type == OP_LIST) { |
6291 | OP *o = ((UNOP*)o2)->op_first->op_sibling; | |
6292 | if (o && o->op_type == OP_CONST) | |
6293 | o->op_private &= ~OPpCONST_STRICT; | |
6294 | } | |
7a52d87a | 6295 | } |
3280af22 NIS |
6296 | o->op_private |= (PL_hints & HINT_STRICT_REFS); |
6297 | if (PERLDB_SUB && PL_curstash != PL_debstash) | |
11343788 MB |
6298 | o->op_private |= OPpENTERSUB_DB; |
6299 | while (o2 != cvop) { | |
4633a7c4 LW |
6300 | if (proto) { |
6301 | switch (*proto) { | |
6302 | case '\0': | |
5dc0d613 | 6303 | return too_many_arguments(o, gv_ename(namegv)); |
4633a7c4 LW |
6304 | case ';': |
6305 | optional = 1; | |
6306 | proto++; | |
6307 | continue; | |
6308 | case '$': | |
6309 | proto++; | |
6310 | arg++; | |
11343788 | 6311 | scalar(o2); |
4633a7c4 LW |
6312 | break; |
6313 | case '%': | |
6314 | case '@': | |
11343788 | 6315 | list(o2); |
4633a7c4 LW |
6316 | arg++; |
6317 | break; | |
6318 | case '&': | |
6319 | proto++; | |
6320 | arg++; | |
11343788 | 6321 | if (o2->op_type != OP_REFGEN && o2->op_type != OP_UNDEF) |
75fc29ea GS |
6322 | bad_type(arg, |
6323 | arg == 1 ? "block or sub {}" : "sub {}", | |
6324 | gv_ename(namegv), o2); | |
4633a7c4 LW |
6325 | break; |
6326 | case '*': | |
2ba6ecf4 | 6327 | /* '*' allows any scalar type, including bareword */ |
4633a7c4 LW |
6328 | proto++; |
6329 | arg++; | |
11343788 | 6330 | if (o2->op_type == OP_RV2GV) |
2ba6ecf4 | 6331 | goto wrapref; /* autoconvert GLOB -> GLOBref */ |
7a52d87a GS |
6332 | else if (o2->op_type == OP_CONST) |
6333 | o2->op_private &= ~OPpCONST_STRICT; | |
9675f7ac GS |
6334 | else if (o2->op_type == OP_ENTERSUB) { |
6335 | /* accidental subroutine, revert to bareword */ | |
6336 | OP *gvop = ((UNOP*)o2)->op_first; | |
6337 | if (gvop && gvop->op_type == OP_NULL) { | |
6338 | gvop = ((UNOP*)gvop)->op_first; | |
6339 | if (gvop) { | |
6340 | for (; gvop->op_sibling; gvop = gvop->op_sibling) | |
6341 | ; | |
6342 | if (gvop && | |
6343 | (gvop->op_private & OPpENTERSUB_NOPAREN) && | |
6344 | (gvop = ((UNOP*)gvop)->op_first) && | |
6345 | gvop->op_type == OP_GV) | |
6346 | { | |
638eceb6 | 6347 | GV *gv = cGVOPx_gv(gvop); |
9675f7ac | 6348 | OP *sibling = o2->op_sibling; |
2692f720 | 6349 | SV *n = newSVpvn("",0); |
9675f7ac | 6350 | op_free(o2); |
2692f720 GS |
6351 | gv_fullname3(n, gv, ""); |
6352 | if (SvCUR(n)>6 && strnEQ(SvPVX(n),"main::",6)) | |
6353 | sv_chop(n, SvPVX(n)+6); | |
6354 | o2 = newSVOP(OP_CONST, 0, n); | |
9675f7ac GS |
6355 | prev->op_sibling = o2; |
6356 | o2->op_sibling = sibling; | |
6357 | } | |
6358 | } | |
6359 | } | |
6360 | } | |
2ba6ecf4 GS |
6361 | scalar(o2); |
6362 | break; | |
4633a7c4 LW |
6363 | case '\\': |
6364 | proto++; | |
6365 | arg++; | |
6366 | switch (*proto++) { | |
6367 | case '*': | |
11343788 | 6368 | if (o2->op_type != OP_RV2GV) |
5dc0d613 | 6369 | bad_type(arg, "symbol", gv_ename(namegv), o2); |
4633a7c4 LW |
6370 | goto wrapref; |
6371 | case '&': | |
75fc29ea GS |
6372 | if (o2->op_type != OP_ENTERSUB) |
6373 | bad_type(arg, "subroutine entry", gv_ename(namegv), o2); | |
4633a7c4 LW |
6374 | goto wrapref; |
6375 | case '$': | |
386acf99 GS |
6376 | if (o2->op_type != OP_RV2SV |
6377 | && o2->op_type != OP_PADSV | |
1c01eb51 GS |
6378 | && o2->op_type != OP_HELEM |
6379 | && o2->op_type != OP_AELEM | |
386acf99 GS |
6380 | && o2->op_type != OP_THREADSV) |
6381 | { | |
5dc0d613 | 6382 | bad_type(arg, "scalar", gv_ename(namegv), o2); |
386acf99 | 6383 | } |
4633a7c4 LW |
6384 | goto wrapref; |
6385 | case '@': | |
11343788 | 6386 | if (o2->op_type != OP_RV2AV && o2->op_type != OP_PADAV) |
5dc0d613 | 6387 | bad_type(arg, "array", gv_ename(namegv), o2); |
4633a7c4 LW |
6388 | goto wrapref; |
6389 | case '%': | |
11343788 | 6390 | if (o2->op_type != OP_RV2HV && o2->op_type != OP_PADHV) |
5dc0d613 | 6391 | bad_type(arg, "hash", gv_ename(namegv), o2); |
4633a7c4 LW |
6392 | wrapref: |
6393 | { | |
11343788 | 6394 | OP* kid = o2; |
6fa846a0 | 6395 | OP* sib = kid->op_sibling; |
4633a7c4 | 6396 | kid->op_sibling = 0; |
6fa846a0 GS |
6397 | o2 = newUNOP(OP_REFGEN, 0, kid); |
6398 | o2->op_sibling = sib; | |
e858de61 | 6399 | prev->op_sibling = o2; |
4633a7c4 LW |
6400 | } |
6401 | break; | |
6402 | default: goto oops; | |
6403 | } | |
6404 | break; | |
b1cb66bf | 6405 | case ' ': |
6406 | proto++; | |
6407 | continue; | |
4633a7c4 LW |
6408 | default: |
6409 | oops: | |
cea2e8a9 | 6410 | Perl_croak(aTHX_ "Malformed prototype for %s: %s", |
2d8e6c8d | 6411 | gv_ename(namegv), SvPV((SV*)cv, n_a)); |
4633a7c4 LW |
6412 | } |
6413 | } | |
6414 | else | |
11343788 MB |
6415 | list(o2); |
6416 | mod(o2, OP_ENTERSUB); | |
6417 | prev = o2; | |
6418 | o2 = o2->op_sibling; | |
4633a7c4 | 6419 | } |
fb73857a | 6420 | if (proto && !optional && |
6421 | (*proto && *proto != '@' && *proto != '%' && *proto != ';')) | |
5dc0d613 | 6422 | return too_few_arguments(o, gv_ename(namegv)); |
11343788 | 6423 | return o; |
79072805 LW |
6424 | } |
6425 | ||
6426 | OP * | |
cea2e8a9 | 6427 | Perl_ck_svconst(pTHX_ OP *o) |
8990e307 | 6428 | { |
11343788 MB |
6429 | SvREADONLY_on(cSVOPo->op_sv); |
6430 | return o; | |
8990e307 LW |
6431 | } |
6432 | ||
6433 | OP * | |
cea2e8a9 | 6434 | Perl_ck_trunc(pTHX_ OP *o) |
79072805 | 6435 | { |
11343788 MB |
6436 | if (o->op_flags & OPf_KIDS) { |
6437 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
79072805 | 6438 | |
a0d0e21e LW |
6439 | if (kid->op_type == OP_NULL) |
6440 | kid = (SVOP*)kid->op_sibling; | |
bb53490d GS |
6441 | if (kid && kid->op_type == OP_CONST && |
6442 | (kid->op_private & OPpCONST_BARE)) | |
6443 | { | |
11343788 | 6444 | o->op_flags |= OPf_SPECIAL; |
bb53490d GS |
6445 | kid->op_private &= ~OPpCONST_STRICT; |
6446 | } | |
79072805 | 6447 | } |
11343788 | 6448 | return ck_fun(o); |
79072805 LW |
6449 | } |
6450 | ||
463ee0b2 LW |
6451 | /* A peephole optimizer. We visit the ops in the order they're to execute. */ |
6452 | ||
79072805 | 6453 | void |
864dbfa3 | 6454 | Perl_peep(pTHX_ register OP *o) |
79072805 | 6455 | { |
11343788 | 6456 | dTHR; |
79072805 | 6457 | register OP* oldop = 0; |
2d8e6c8d | 6458 | STRLEN n_a; |
cd06dffe | 6459 | OP *last_composite = Nullop; |
2d8e6c8d | 6460 | |
a0d0e21e | 6461 | if (!o || o->op_seq) |
79072805 | 6462 | return; |
a0d0e21e | 6463 | ENTER; |
462e5cf6 | 6464 | SAVEOP(); |
7766f137 | 6465 | SAVEVPTR(PL_curcop); |
a0d0e21e LW |
6466 | for (; o; o = o->op_next) { |
6467 | if (o->op_seq) | |
6468 | break; | |
3280af22 NIS |
6469 | if (!PL_op_seqmax) |
6470 | PL_op_seqmax++; | |
533c011a | 6471 | PL_op = o; |
a0d0e21e | 6472 | switch (o->op_type) { |
acb36ea4 | 6473 | case OP_SETSTATE: |
a0d0e21e LW |
6474 | case OP_NEXTSTATE: |
6475 | case OP_DBSTATE: | |
3280af22 NIS |
6476 | PL_curcop = ((COP*)o); /* for warnings */ |
6477 | o->op_seq = PL_op_seqmax++; | |
cd06dffe | 6478 | last_composite = Nullop; |
a0d0e21e LW |
6479 | break; |
6480 | ||
a0d0e21e | 6481 | case OP_CONST: |
7a52d87a GS |
6482 | if (cSVOPo->op_private & OPpCONST_STRICT) |
6483 | no_bareword_allowed(o); | |
7766f137 GS |
6484 | #ifdef USE_ITHREADS |
6485 | /* Relocate sv to the pad for thread safety. | |
6486 | * Despite being a "constant", the SV is written to, | |
6487 | * for reference counts, sv_upgrade() etc. */ | |
6488 | if (cSVOP->op_sv) { | |
6489 | PADOFFSET ix = pad_alloc(OP_CONST, SVs_PADTMP); | |
6a7129a1 GS |
6490 | if (SvPADTMP(cSVOPo->op_sv)) { |
6491 | /* If op_sv is already a PADTMP then it is being used by | |
6492 | * another pad, so make a copy. */ | |
6493 | sv_setsv(PL_curpad[ix],cSVOPo->op_sv); | |
6494 | SvREADONLY_on(PL_curpad[ix]); | |
6495 | SvREFCNT_dec(cSVOPo->op_sv); | |
6496 | } | |
6497 | else { | |
6498 | SvREFCNT_dec(PL_curpad[ix]); | |
6499 | SvPADTMP_on(cSVOPo->op_sv); | |
6500 | PL_curpad[ix] = cSVOPo->op_sv; | |
6501 | } | |
7766f137 GS |
6502 | cSVOPo->op_sv = Nullsv; |
6503 | o->op_targ = ix; | |
6504 | } | |
6505 | #endif | |
07447971 GS |
6506 | o->op_seq = PL_op_seqmax++; |
6507 | break; | |
6508 | ||
ed7ab888 | 6509 | case OP_CONCAT: |
b162f9ea IZ |
6510 | if (o->op_next && o->op_next->op_type == OP_STRINGIFY) { |
6511 | if (o->op_next->op_private & OPpTARGET_MY) { | |
69b47968 | 6512 | if (o->op_flags & OPf_STACKED) /* chained concats */ |
b162f9ea | 6513 | goto ignore_optimization; |
cd06dffe | 6514 | else { |
07447971 | 6515 | /* assert(PL_opargs[o->op_type] & OA_TARGLEX); */ |
b162f9ea | 6516 | o->op_targ = o->op_next->op_targ; |
743e66e6 | 6517 | o->op_next->op_targ = 0; |
2c2d71f5 | 6518 | o->op_private |= OPpTARGET_MY; |
b162f9ea IZ |
6519 | } |
6520 | } | |
a0d0e21e | 6521 | null(o->op_next); |
b162f9ea IZ |
6522 | } |
6523 | ignore_optimization: | |
3280af22 | 6524 | o->op_seq = PL_op_seqmax++; |
a0d0e21e | 6525 | break; |
8990e307 | 6526 | case OP_STUB: |
54310121 | 6527 | if ((o->op_flags & OPf_WANT) != OPf_WANT_LIST) { |
3280af22 | 6528 | o->op_seq = PL_op_seqmax++; |
54310121 | 6529 | break; /* Scalar stub must produce undef. List stub is noop */ |
8990e307 | 6530 | } |
748a9306 | 6531 | goto nothin; |
79072805 | 6532 | case OP_NULL: |
acb36ea4 GS |
6533 | if (o->op_targ == OP_NEXTSTATE |
6534 | || o->op_targ == OP_DBSTATE | |
6535 | || o->op_targ == OP_SETSTATE) | |
6536 | { | |
3280af22 | 6537 | PL_curcop = ((COP*)o); |
acb36ea4 | 6538 | } |
748a9306 | 6539 | goto nothin; |
79072805 | 6540 | case OP_SCALAR: |
93a17b20 | 6541 | case OP_LINESEQ: |
463ee0b2 | 6542 | case OP_SCOPE: |
748a9306 | 6543 | nothin: |
a0d0e21e LW |
6544 | if (oldop && o->op_next) { |
6545 | oldop->op_next = o->op_next; | |
79072805 LW |
6546 | continue; |
6547 | } | |
3280af22 | 6548 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6549 | break; |
6550 | ||
6551 | case OP_GV: | |
a0d0e21e | 6552 | if (o->op_next->op_type == OP_RV2SV) { |
64aac5a9 | 6553 | if (!(o->op_next->op_private & OPpDEREF)) { |
ef8040b0 | 6554 | null(o->op_next); |
64aac5a9 GS |
6555 | o->op_private |= o->op_next->op_private & (OPpLVAL_INTRO |
6556 | | OPpOUR_INTRO); | |
a0d0e21e LW |
6557 | o->op_next = o->op_next->op_next; |
6558 | o->op_type = OP_GVSV; | |
22c35a8c | 6559 | o->op_ppaddr = PL_ppaddr[OP_GVSV]; |
8990e307 LW |
6560 | } |
6561 | } | |
a0d0e21e LW |
6562 | else if (o->op_next->op_type == OP_RV2AV) { |
6563 | OP* pop = o->op_next->op_next; | |
6564 | IV i; | |
8990e307 | 6565 | if (pop->op_type == OP_CONST && |
533c011a | 6566 | (PL_op = pop->op_next) && |
8990e307 | 6567 | pop->op_next->op_type == OP_AELEM && |
a0d0e21e | 6568 | !(pop->op_next->op_private & |
68dc0745 | 6569 | (OPpLVAL_INTRO|OPpLVAL_DEFER|OPpDEREF)) && |
3280af22 | 6570 | (i = SvIV(((SVOP*)pop)->op_sv) - PL_compiling.cop_arybase) |
a0d0e21e | 6571 | <= 255 && |
8990e307 LW |
6572 | i >= 0) |
6573 | { | |
350de78d | 6574 | GV *gv; |
a0d0e21e | 6575 | null(o->op_next); |
8990e307 LW |
6576 | null(pop->op_next); |
6577 | null(pop); | |
a0d0e21e LW |
6578 | o->op_flags |= pop->op_next->op_flags & OPf_MOD; |
6579 | o->op_next = pop->op_next->op_next; | |
6580 | o->op_type = OP_AELEMFAST; | |
22c35a8c | 6581 | o->op_ppaddr = PL_ppaddr[OP_AELEMFAST]; |
a0d0e21e | 6582 | o->op_private = (U8)i; |
638eceb6 | 6583 | gv = cGVOPo_gv; |
350de78d | 6584 | GvAVn(gv); |
8990e307 | 6585 | } |
79072805 | 6586 | } |
e476b1b5 | 6587 | else if ((o->op_private & OPpEARLY_CV) && ckWARN(WARN_PROTOTYPE)) { |
638eceb6 | 6588 | GV *gv = cGVOPo_gv; |
76cd736e GS |
6589 | if (SvTYPE(gv) == SVt_PVGV && GvCV(gv) && SvPVX(GvCV(gv))) { |
6590 | /* XXX could check prototype here instead of just carping */ | |
6591 | SV *sv = sv_newmortal(); | |
6592 | gv_efullname3(sv, gv, Nullch); | |
e476b1b5 | 6593 | Perl_warner(aTHX_ WARN_PROTOTYPE, |
76cd736e GS |
6594 | "%s() called too early to check prototype", |
6595 | SvPV_nolen(sv)); | |
6596 | } | |
6597 | } | |
6598 | ||
3280af22 | 6599 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6600 | break; |
6601 | ||
a0d0e21e | 6602 | case OP_MAPWHILE: |
79072805 LW |
6603 | case OP_GREPWHILE: |
6604 | case OP_AND: | |
6605 | case OP_OR: | |
2c2d71f5 JH |
6606 | case OP_ANDASSIGN: |
6607 | case OP_ORASSIGN: | |
1a67a97c SM |
6608 | case OP_COND_EXPR: |
6609 | case OP_RANGE: | |
3280af22 | 6610 | o->op_seq = PL_op_seqmax++; |
fd4d1407 IZ |
6611 | while (cLOGOP->op_other->op_type == OP_NULL) |
6612 | cLOGOP->op_other = cLOGOP->op_other->op_next; | |
79072805 LW |
6613 | peep(cLOGOP->op_other); |
6614 | break; | |
6615 | ||
79072805 | 6616 | case OP_ENTERLOOP: |
3280af22 | 6617 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6618 | peep(cLOOP->op_redoop); |
6619 | peep(cLOOP->op_nextop); | |
6620 | peep(cLOOP->op_lastop); | |
6621 | break; | |
6622 | ||
8782bef2 | 6623 | case OP_QR: |
79072805 LW |
6624 | case OP_MATCH: |
6625 | case OP_SUBST: | |
3280af22 | 6626 | o->op_seq = PL_op_seqmax++; |
a0d0e21e | 6627 | peep(cPMOP->op_pmreplstart); |
79072805 LW |
6628 | break; |
6629 | ||
a0d0e21e | 6630 | case OP_EXEC: |
3280af22 | 6631 | o->op_seq = PL_op_seqmax++; |
599cee73 PM |
6632 | if (ckWARN(WARN_SYNTAX) && o->op_next |
6633 | && o->op_next->op_type == OP_NEXTSTATE) { | |
a0d0e21e | 6634 | if (o->op_next->op_sibling && |
20408e3c GS |
6635 | o->op_next->op_sibling->op_type != OP_EXIT && |
6636 | o->op_next->op_sibling->op_type != OP_WARN && | |
a0d0e21e | 6637 | o->op_next->op_sibling->op_type != OP_DIE) { |
57843af0 | 6638 | line_t oldline = CopLINE(PL_curcop); |
a0d0e21e | 6639 | |
57843af0 | 6640 | CopLINE_set(PL_curcop, CopLINE((COP*)o->op_next)); |
eeb6a2c9 GS |
6641 | Perl_warner(aTHX_ WARN_EXEC, |
6642 | "Statement unlikely to be reached"); | |
6643 | Perl_warner(aTHX_ WARN_EXEC, | |
cc507455 | 6644 | "\t(Maybe you meant system() when you said exec()?)\n"); |
57843af0 | 6645 | CopLINE_set(PL_curcop, oldline); |
a0d0e21e LW |
6646 | } |
6647 | } | |
6648 | break; | |
aeea060c | 6649 | |
c750a3ec MB |
6650 | case OP_HELEM: { |
6651 | UNOP *rop; | |
6652 | SV *lexname; | |
6653 | GV **fields; | |
9615e741 | 6654 | SV **svp, **indsvp, *sv; |
c750a3ec MB |
6655 | I32 ind; |
6656 | char *key; | |
6657 | STRLEN keylen; | |
aeea060c | 6658 | |
9615e741 | 6659 | o->op_seq = PL_op_seqmax++; |
377b21bb | 6660 | if ((o->op_private & (OPpLVAL_INTRO)) |
c750a3ec MB |
6661 | || ((BINOP*)o)->op_last->op_type != OP_CONST) |
6662 | break; | |
6663 | rop = (UNOP*)((BINOP*)o)->op_first; | |
6664 | if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV) | |
6665 | break; | |
3280af22 | 6666 | lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE); |
c750a3ec MB |
6667 | if (!SvOBJECT(lexname)) |
6668 | break; | |
5196be3e | 6669 | fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); |
c750a3ec MB |
6670 | if (!fields || !GvHV(*fields)) |
6671 | break; | |
638eceb6 | 6672 | svp = cSVOPx_svp(((BINOP*)o)->op_last); |
c750a3ec MB |
6673 | key = SvPV(*svp, keylen); |
6674 | indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE); | |
6675 | if (!indsvp) { | |
88e9b055 | 6676 | Perl_croak(aTHX_ "No such pseudo-hash field \"%s\" in variable %s of type %s", |
2d8e6c8d | 6677 | key, SvPV(lexname, n_a), HvNAME(SvSTASH(lexname))); |
c750a3ec MB |
6678 | } |
6679 | ind = SvIV(*indsvp); | |
6680 | if (ind < 1) | |
cea2e8a9 | 6681 | Perl_croak(aTHX_ "Bad index while coercing array into hash"); |
c750a3ec | 6682 | rop->op_type = OP_RV2AV; |
22c35a8c | 6683 | rop->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
c750a3ec | 6684 | o->op_type = OP_AELEM; |
22c35a8c | 6685 | o->op_ppaddr = PL_ppaddr[OP_AELEM]; |
9615e741 GS |
6686 | sv = newSViv(ind); |
6687 | if (SvREADONLY(*svp)) | |
6688 | SvREADONLY_on(sv); | |
6689 | SvFLAGS(sv) |= (SvFLAGS(*svp) | |
6690 | & (SVs_PADBUSY|SVs_PADTMP|SVs_PADMY)); | |
c750a3ec | 6691 | SvREFCNT_dec(*svp); |
9615e741 | 6692 | *svp = sv; |
c750a3ec MB |
6693 | break; |
6694 | } | |
345599ca GS |
6695 | |
6696 | case OP_HSLICE: { | |
6697 | UNOP *rop; | |
6698 | SV *lexname; | |
6699 | GV **fields; | |
9615e741 | 6700 | SV **svp, **indsvp, *sv; |
345599ca GS |
6701 | I32 ind; |
6702 | char *key; | |
6703 | STRLEN keylen; | |
6704 | SVOP *first_key_op, *key_op; | |
9615e741 GS |
6705 | |
6706 | o->op_seq = PL_op_seqmax++; | |
345599ca GS |
6707 | if ((o->op_private & (OPpLVAL_INTRO)) |
6708 | /* I bet there's always a pushmark... */ | |
6709 | || ((LISTOP*)o)->op_first->op_sibling->op_type != OP_LIST) | |
6710 | /* hmmm, no optimization if list contains only one key. */ | |
6711 | break; | |
6712 | rop = (UNOP*)((LISTOP*)o)->op_last; | |
6713 | if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV) | |
6714 | break; | |
6715 | lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE); | |
6716 | if (!SvOBJECT(lexname)) | |
6717 | break; | |
6718 | fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); | |
6719 | if (!fields || !GvHV(*fields)) | |
6720 | break; | |
6721 | /* Again guessing that the pushmark can be jumped over.... */ | |
6722 | first_key_op = (SVOP*)((LISTOP*)((LISTOP*)o)->op_first->op_sibling) | |
6723 | ->op_first->op_sibling; | |
6724 | /* Check that the key list contains only constants. */ | |
6725 | for (key_op = first_key_op; key_op; | |
6726 | key_op = (SVOP*)key_op->op_sibling) | |
6727 | if (key_op->op_type != OP_CONST) | |
6728 | break; | |
6729 | if (key_op) | |
6730 | break; | |
6731 | rop->op_type = OP_RV2AV; | |
6732 | rop->op_ppaddr = PL_ppaddr[OP_RV2AV]; | |
6733 | o->op_type = OP_ASLICE; | |
6734 | o->op_ppaddr = PL_ppaddr[OP_ASLICE]; | |
6735 | for (key_op = first_key_op; key_op; | |
6736 | key_op = (SVOP*)key_op->op_sibling) { | |
6737 | svp = cSVOPx_svp(key_op); | |
6738 | key = SvPV(*svp, keylen); | |
6739 | indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE); | |
6740 | if (!indsvp) { | |
9615e741 GS |
6741 | Perl_croak(aTHX_ "No such pseudo-hash field \"%s\" " |
6742 | "in variable %s of type %s", | |
345599ca GS |
6743 | key, SvPV(lexname, n_a), HvNAME(SvSTASH(lexname))); |
6744 | } | |
6745 | ind = SvIV(*indsvp); | |
6746 | if (ind < 1) | |
6747 | Perl_croak(aTHX_ "Bad index while coercing array into hash"); | |
9615e741 GS |
6748 | sv = newSViv(ind); |
6749 | if (SvREADONLY(*svp)) | |
6750 | SvREADONLY_on(sv); | |
6751 | SvFLAGS(sv) |= (SvFLAGS(*svp) | |
6752 | & (SVs_PADBUSY|SVs_PADTMP|SVs_PADMY)); | |
345599ca | 6753 | SvREFCNT_dec(*svp); |
9615e741 | 6754 | *svp = sv; |
345599ca GS |
6755 | } |
6756 | break; | |
6757 | } | |
c750a3ec | 6758 | |
cd06dffe GS |
6759 | case OP_RV2AV: |
6760 | case OP_RV2HV: | |
6761 | if (!(o->op_flags & OPf_WANT) | |
e1f15930 GS |
6762 | || (o->op_flags & OPf_WANT) == OPf_WANT_LIST) |
6763 | { | |
cd06dffe | 6764 | last_composite = o; |
e1f15930 | 6765 | } |
cd06dffe GS |
6766 | o->op_seq = PL_op_seqmax++; |
6767 | break; | |
6768 | ||
6769 | case OP_RETURN: | |
970c4905 | 6770 | if (o->op_next && o->op_next->op_type != OP_LEAVESUBLV) { |
cd06dffe GS |
6771 | o->op_seq = PL_op_seqmax++; |
6772 | break; | |
6773 | } | |
6774 | /* FALL THROUGH */ | |
6775 | ||
6776 | case OP_LEAVESUBLV: | |
6777 | if (last_composite) { | |
6778 | OP *r = last_composite; | |
6779 | ||
6780 | while (r->op_sibling) | |
6781 | r = r->op_sibling; | |
6782 | if (r->op_next == o | |
6783 | || (r->op_next->op_type == OP_LIST | |
6784 | && r->op_next->op_next == o)) | |
6785 | { | |
6786 | if (last_composite->op_type == OP_RV2AV) | |
6787 | yyerror("Lvalue subs returning arrays not implemented yet"); | |
6788 | else | |
6789 | yyerror("Lvalue subs returning hashes not implemented yet"); | |
6790 | ; | |
6791 | } | |
6792 | } | |
6793 | /* FALL THROUGH */ | |
6794 | ||
79072805 | 6795 | default: |
3280af22 | 6796 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6797 | break; |
6798 | } | |
a0d0e21e | 6799 | oldop = o; |
79072805 | 6800 | } |
a0d0e21e | 6801 | LEAVE; |
79072805 | 6802 | } |