Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* op.c |
79072805 | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "You see: Mr. Drogo, he married poor Miss Primula Brandybuck. She was | |
12 | * our Mr. Bilbo's first cousin on the mother's side (her mother being the | |
13 | * youngest of the Old Took's daughters); and Mr. Drogo was his second | |
14 | * cousin. So Mr. Frodo is his first *and* second cousin, once removed | |
15 | * either way, as the saying is, if you follow me." --the Gaffer | |
79072805 LW |
16 | */ |
17 | ||
18 | #include "EXTERN.h" | |
864dbfa3 | 19 | #define PERL_IN_OP_C |
79072805 | 20 | #include "perl.h" |
77ca0c92 | 21 | #include "keywords.h" |
79072805 | 22 | |
b7dc083c | 23 | /* #define PL_OP_SLAB_ALLOC */ |
7934575e | 24 | |
b7dc083c NIS |
25 | #ifdef PL_OP_SLAB_ALLOC |
26 | #define SLAB_SIZE 8192 | |
27 | static char *PL_OpPtr = NULL; | |
28 | static int PL_OpSpace = 0; | |
29 | #define NewOp(m,var,c,type) do { if ((PL_OpSpace -= c*sizeof(type)) >= 0) \ | |
30 | var = (type *)(PL_OpPtr -= c*sizeof(type)); \ | |
31 | else \ | |
32 | var = (type *) Slab_Alloc(m,c*sizeof(type)); \ | |
33 | } while (0) | |
34 | ||
864dbfa3 | 35 | STATIC void * |
cea2e8a9 | 36 | S_Slab_Alloc(pTHX_ int m, size_t sz) |
b7dc083c NIS |
37 | { |
38 | Newz(m,PL_OpPtr,SLAB_SIZE,char); | |
39 | PL_OpSpace = SLAB_SIZE - sz; | |
40 | return PL_OpPtr += PL_OpSpace; | |
41 | } | |
76e3520e | 42 | |
b7dc083c NIS |
43 | #else |
44 | #define NewOp(m, var, c, type) Newz(m, var, c, type) | |
45 | #endif | |
e50aee73 | 46 | /* |
5dc0d613 | 47 | * In the following definition, the ", Nullop" is just to make the compiler |
a5f75d66 | 48 | * think the expression is of the right type: croak actually does a Siglongjmp. |
e50aee73 | 49 | */ |
11343788 | 50 | #define CHECKOP(type,o) \ |
3280af22 | 51 | ((PL_op_mask && PL_op_mask[type]) \ |
5dc0d613 | 52 | ? ( op_free((OP*)o), \ |
cea2e8a9 | 53 | Perl_croak(aTHX_ "%s trapped by operation mask", PL_op_desc[type]), \ |
28757baa | 54 | Nullop ) \ |
fc0dc3b3 | 55 | : CALL_FPTR(PL_check[type])(aTHX_ (OP*)o)) |
e50aee73 | 56 | |
c53d7c7d HS |
57 | #define PAD_MAX 999999999 |
58 | ||
76e3520e | 59 | STATIC char* |
cea2e8a9 | 60 | S_gv_ename(pTHX_ GV *gv) |
4633a7c4 | 61 | { |
2d8e6c8d | 62 | STRLEN n_a; |
4633a7c4 | 63 | SV* tmpsv = sv_newmortal(); |
46fc3d4c | 64 | gv_efullname3(tmpsv, gv, Nullch); |
2d8e6c8d | 65 | return SvPV(tmpsv,n_a); |
4633a7c4 LW |
66 | } |
67 | ||
76e3520e | 68 | STATIC OP * |
cea2e8a9 | 69 | S_no_fh_allowed(pTHX_ OP *o) |
79072805 | 70 | { |
cea2e8a9 | 71 | yyerror(Perl_form(aTHX_ "Missing comma after first argument to %s function", |
22c35a8c | 72 | PL_op_desc[o->op_type])); |
11343788 | 73 | return o; |
79072805 LW |
74 | } |
75 | ||
76e3520e | 76 | STATIC OP * |
cea2e8a9 | 77 | S_too_few_arguments(pTHX_ OP *o, char *name) |
79072805 | 78 | { |
cea2e8a9 | 79 | yyerror(Perl_form(aTHX_ "Not enough arguments for %s", name)); |
11343788 | 80 | return o; |
79072805 LW |
81 | } |
82 | ||
76e3520e | 83 | STATIC OP * |
cea2e8a9 | 84 | S_too_many_arguments(pTHX_ OP *o, char *name) |
79072805 | 85 | { |
cea2e8a9 | 86 | yyerror(Perl_form(aTHX_ "Too many arguments for %s", name)); |
11343788 | 87 | return o; |
79072805 LW |
88 | } |
89 | ||
76e3520e | 90 | STATIC void |
cea2e8a9 | 91 | S_bad_type(pTHX_ I32 n, char *t, char *name, OP *kid) |
8990e307 | 92 | { |
cea2e8a9 | 93 | yyerror(Perl_form(aTHX_ "Type of arg %d to %s must be %s (not %s)", |
22c35a8c | 94 | (int)n, name, t, PL_op_desc[kid->op_type])); |
8990e307 LW |
95 | } |
96 | ||
7a52d87a | 97 | STATIC void |
cea2e8a9 | 98 | S_no_bareword_allowed(pTHX_ OP *o) |
7a52d87a | 99 | { |
5a844595 GS |
100 | qerror(Perl_mess(aTHX_ |
101 | "Bareword \"%s\" not allowed while \"strict subs\" in use", | |
7766f137 | 102 | SvPV_nolen(cSVOPo_sv))); |
7a52d87a GS |
103 | } |
104 | ||
79072805 LW |
105 | /* "register" allocation */ |
106 | ||
107 | PADOFFSET | |
864dbfa3 | 108 | Perl_pad_allocmy(pTHX_ char *name) |
93a17b20 | 109 | { |
11343788 | 110 | dTHR; |
a0d0e21e LW |
111 | PADOFFSET off; |
112 | SV *sv; | |
113 | ||
155aba94 GS |
114 | if (!(PL_in_my == KEY_our || |
115 | isALPHA(name[1]) || | |
116 | (PL_hints & HINT_UTF8 && (name[1] & 0xc0) == 0xc0) || | |
117 | (name[1] == '_' && (int)strlen(name) > 2))) | |
834a4ddd | 118 | { |
c4d0567e | 119 | if (!isPRINT(name[1]) || strchr("\t\n\r\f", name[1])) { |
2b92dfce GS |
120 | /* 1999-02-27 mjd@plover.com */ |
121 | char *p; | |
122 | p = strchr(name, '\0'); | |
123 | /* The next block assumes the buffer is at least 205 chars | |
124 | long. At present, it's always at least 256 chars. */ | |
125 | if (p-name > 200) { | |
126 | strcpy(name+200, "..."); | |
127 | p = name+199; | |
128 | } | |
129 | else { | |
130 | p[1] = '\0'; | |
131 | } | |
132 | /* Move everything else down one character */ | |
133 | for (; p-name > 2; p--) | |
134 | *p = *(p-1); | |
46fc3d4c | 135 | name[2] = toCTRL(name[1]); |
136 | name[1] = '^'; | |
137 | } | |
cea2e8a9 | 138 | yyerror(Perl_form(aTHX_ "Can't use global %s in \"my\"",name)); |
a0d0e21e | 139 | } |
e476b1b5 | 140 | if (ckWARN(WARN_MISC) && AvFILLp(PL_comppad_name) >= 0) { |
3280af22 | 141 | SV **svp = AvARRAY(PL_comppad_name); |
33633739 GS |
142 | HV *ourstash = (PL_curstash ? PL_curstash : PL_defstash); |
143 | PADOFFSET top = AvFILLp(PL_comppad_name); | |
144 | for (off = top; off > PL_comppad_name_floor; off--) { | |
b1cb66bf | 145 | if ((sv = svp[off]) |
3280af22 | 146 | && sv != &PL_sv_undef |
c53d7c7d | 147 | && (SvIVX(sv) == PAD_MAX || SvIVX(sv) == 0) |
33633739 GS |
148 | && (PL_in_my != KEY_our |
149 | || ((SvFLAGS(sv) & SVpad_OUR) && GvSTASH(sv) == ourstash)) | |
b1cb66bf | 150 | && strEQ(name, SvPVX(sv))) |
151 | { | |
e476b1b5 | 152 | Perl_warner(aTHX_ WARN_MISC, |
33633739 GS |
153 | "\"%s\" variable %s masks earlier declaration in same %s", |
154 | (PL_in_my == KEY_our ? "our" : "my"), | |
155 | name, | |
156 | (SvIVX(sv) == PAD_MAX ? "scope" : "statement")); | |
157 | --off; | |
158 | break; | |
159 | } | |
160 | } | |
161 | if (PL_in_my == KEY_our) { | |
635bab04 | 162 | do { |
33633739 GS |
163 | if ((sv = svp[off]) |
164 | && sv != &PL_sv_undef | |
165 | && ((SvFLAGS(sv) & SVpad_OUR) && GvSTASH(sv) == ourstash) | |
166 | && strEQ(name, SvPVX(sv))) | |
f472eb5c | 167 | { |
e476b1b5 | 168 | Perl_warner(aTHX_ WARN_MISC, |
33633739 | 169 | "\"our\" variable %s redeclared", name); |
e476b1b5 | 170 | Perl_warner(aTHX_ WARN_MISC, |
cc507455 | 171 | "\t(Did you mean \"local\" instead of \"our\"?)\n"); |
33633739 | 172 | break; |
f472eb5c | 173 | } |
635bab04 | 174 | } while ( off-- > 0 ); |
b1cb66bf | 175 | } |
176 | } | |
a0d0e21e LW |
177 | off = pad_alloc(OP_PADSV, SVs_PADMY); |
178 | sv = NEWSV(1102,0); | |
93a17b20 LW |
179 | sv_upgrade(sv, SVt_PVNV); |
180 | sv_setpv(sv, name); | |
3280af22 | 181 | if (PL_in_my_stash) { |
c750a3ec | 182 | if (*name != '$') |
eb64745e GS |
183 | yyerror(Perl_form(aTHX_ "Can't declare class for non-scalar %s in \"%s\"", |
184 | name, PL_in_my == KEY_our ? "our" : "my")); | |
c750a3ec MB |
185 | SvOBJECT_on(sv); |
186 | (void)SvUPGRADE(sv, SVt_PVMG); | |
3280af22 NIS |
187 | SvSTASH(sv) = (HV*)SvREFCNT_inc(PL_in_my_stash); |
188 | PL_sv_objcount++; | |
c750a3ec | 189 | } |
f472eb5c GS |
190 | if (PL_in_my == KEY_our) { |
191 | (void)SvUPGRADE(sv, SVt_PVGV); | |
ef75a179 | 192 | GvSTASH(sv) = (HV*)SvREFCNT_inc(PL_curstash ? (SV*)PL_curstash : (SV*)PL_defstash); |
77ca0c92 | 193 | SvFLAGS(sv) |= SVpad_OUR; |
f472eb5c | 194 | } |
3280af22 | 195 | av_store(PL_comppad_name, off, sv); |
65202027 | 196 | SvNVX(sv) = (NV)PAD_MAX; |
8990e307 | 197 | SvIVX(sv) = 0; /* Not yet introduced--see newSTATEOP */ |
3280af22 NIS |
198 | if (!PL_min_intro_pending) |
199 | PL_min_intro_pending = off; | |
200 | PL_max_intro_pending = off; | |
93a17b20 | 201 | if (*name == '@') |
3280af22 | 202 | av_store(PL_comppad, off, (SV*)newAV()); |
93a17b20 | 203 | else if (*name == '%') |
3280af22 NIS |
204 | av_store(PL_comppad, off, (SV*)newHV()); |
205 | SvPADMY_on(PL_curpad[off]); | |
93a17b20 LW |
206 | return off; |
207 | } | |
208 | ||
94f23f41 GS |
209 | STATIC PADOFFSET |
210 | S_pad_addlex(pTHX_ SV *proto_namesv) | |
211 | { | |
212 | SV *namesv = NEWSV(1103,0); | |
213 | PADOFFSET newoff = pad_alloc(OP_PADSV, SVs_PADMY); | |
214 | sv_upgrade(namesv, SVt_PVNV); | |
215 | sv_setpv(namesv, SvPVX(proto_namesv)); | |
216 | av_store(PL_comppad_name, newoff, namesv); | |
217 | SvNVX(namesv) = (NV)PL_curcop->cop_seq; | |
218 | SvIVX(namesv) = PAD_MAX; /* A ref, intro immediately */ | |
219 | SvFAKE_on(namesv); /* A ref, not a real var */ | |
220 | if (SvFLAGS(proto_namesv) & SVpad_OUR) { /* An "our" variable */ | |
221 | SvFLAGS(namesv) |= SVpad_OUR; | |
222 | (void)SvUPGRADE(namesv, SVt_PVGV); | |
223 | GvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)GvSTASH(proto_namesv)); | |
224 | } | |
225 | if (SvOBJECT(proto_namesv)) { /* A typed var */ | |
226 | SvOBJECT_on(namesv); | |
227 | (void)SvUPGRADE(namesv, SVt_PVMG); | |
228 | SvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)SvSTASH(proto_namesv)); | |
229 | PL_sv_objcount++; | |
230 | } | |
231 | return newoff; | |
232 | } | |
233 | ||
2680586e GS |
234 | #define FINDLEX_NOSEARCH 1 /* don't search outer contexts */ |
235 | ||
76e3520e | 236 | STATIC PADOFFSET |
cea2e8a9 | 237 | S_pad_findlex(pTHX_ char *name, PADOFFSET newoff, U32 seq, CV* startcv, |
864dbfa3 | 238 | I32 cx_ix, I32 saweval, U32 flags) |
93a17b20 | 239 | { |
11343788 | 240 | dTHR; |
748a9306 | 241 | CV *cv; |
93a17b20 LW |
242 | I32 off; |
243 | SV *sv; | |
93a17b20 | 244 | register I32 i; |
c09156bb | 245 | register PERL_CONTEXT *cx; |
93a17b20 | 246 | |
748a9306 | 247 | for (cv = startcv; cv; cv = CvOUTSIDE(cv)) { |
4fdae800 | 248 | AV *curlist = CvPADLIST(cv); |
249 | SV **svp = av_fetch(curlist, 0, FALSE); | |
748a9306 | 250 | AV *curname; |
4fdae800 | 251 | |
3280af22 | 252 | if (!svp || *svp == &PL_sv_undef) |
4633a7c4 | 253 | continue; |
748a9306 LW |
254 | curname = (AV*)*svp; |
255 | svp = AvARRAY(curname); | |
93965878 | 256 | for (off = AvFILLp(curname); off > 0; off--) { |
748a9306 | 257 | if ((sv = svp[off]) && |
3280af22 | 258 | sv != &PL_sv_undef && |
748a9306 | 259 | seq <= SvIVX(sv) && |
13826f2c | 260 | seq > I_32(SvNVX(sv)) && |
748a9306 LW |
261 | strEQ(SvPVX(sv), name)) |
262 | { | |
5f05dabc | 263 | I32 depth; |
264 | AV *oldpad; | |
265 | SV *oldsv; | |
266 | ||
267 | depth = CvDEPTH(cv); | |
268 | if (!depth) { | |
9607fc9c | 269 | if (newoff) { |
270 | if (SvFAKE(sv)) | |
271 | continue; | |
4fdae800 | 272 | return 0; /* don't clone from inactive stack frame */ |
9607fc9c | 273 | } |
5f05dabc | 274 | depth = 1; |
275 | } | |
94f23f41 | 276 | oldpad = (AV*)AvARRAY(curlist)[depth]; |
5f05dabc | 277 | oldsv = *av_fetch(oldpad, off, TRUE); |
748a9306 | 278 | if (!newoff) { /* Not a mere clone operation. */ |
94f23f41 | 279 | newoff = pad_addlex(sv); |
3280af22 | 280 | if (CvANON(PL_compcv) || SvTYPE(PL_compcv) == SVt_PVFM) { |
28757baa | 281 | /* "It's closures all the way down." */ |
3280af22 | 282 | CvCLONE_on(PL_compcv); |
54310121 | 283 | if (cv == startcv) { |
3280af22 | 284 | if (CvANON(PL_compcv)) |
54310121 | 285 | oldsv = Nullsv; /* no need to keep ref */ |
286 | } | |
287 | else { | |
28757baa | 288 | CV *bcv; |
289 | for (bcv = startcv; | |
290 | bcv && bcv != cv && !CvCLONE(bcv); | |
6b35e009 GS |
291 | bcv = CvOUTSIDE(bcv)) |
292 | { | |
94f23f41 GS |
293 | if (CvANON(bcv)) { |
294 | /* install the missing pad entry in intervening | |
295 | * nested subs and mark them cloneable. | |
296 | * XXX fix pad_foo() to not use globals */ | |
297 | AV *ocomppad_name = PL_comppad_name; | |
298 | AV *ocomppad = PL_comppad; | |
299 | SV **ocurpad = PL_curpad; | |
300 | AV *padlist = CvPADLIST(bcv); | |
301 | PL_comppad_name = (AV*)AvARRAY(padlist)[0]; | |
302 | PL_comppad = (AV*)AvARRAY(padlist)[1]; | |
303 | PL_curpad = AvARRAY(PL_comppad); | |
304 | pad_addlex(sv); | |
305 | PL_comppad_name = ocomppad_name; | |
306 | PL_comppad = ocomppad; | |
307 | PL_curpad = ocurpad; | |
28757baa | 308 | CvCLONE_on(bcv); |
94f23f41 | 309 | } |
28757baa | 310 | else { |
6b35e009 GS |
311 | if (ckWARN(WARN_CLOSURE) |
312 | && !CvUNIQUE(bcv) && !CvUNIQUE(cv)) | |
313 | { | |
cea2e8a9 | 314 | Perl_warner(aTHX_ WARN_CLOSURE, |
44a8e56a | 315 | "Variable \"%s\" may be unavailable", |
28757baa | 316 | name); |
6b35e009 | 317 | } |
28757baa | 318 | break; |
319 | } | |
320 | } | |
321 | } | |
322 | } | |
3280af22 | 323 | else if (!CvUNIQUE(PL_compcv)) { |
741b6338 GS |
324 | if (ckWARN(WARN_CLOSURE) && !SvFAKE(sv) && !CvUNIQUE(cv) |
325 | && !(SvFLAGS(sv) & SVpad_OUR)) | |
326 | { | |
cea2e8a9 | 327 | Perl_warner(aTHX_ WARN_CLOSURE, |
599cee73 | 328 | "Variable \"%s\" will not stay shared", name); |
741b6338 | 329 | } |
5f05dabc | 330 | } |
748a9306 | 331 | } |
3280af22 | 332 | av_store(PL_comppad, newoff, SvREFCNT_inc(oldsv)); |
748a9306 LW |
333 | return newoff; |
334 | } | |
93a17b20 LW |
335 | } |
336 | } | |
337 | ||
2680586e GS |
338 | if (flags & FINDLEX_NOSEARCH) |
339 | return 0; | |
340 | ||
93a17b20 LW |
341 | /* Nothing in current lexical context--try eval's context, if any. |
342 | * This is necessary to let the perldb get at lexically scoped variables. | |
343 | * XXX This will also probably interact badly with eval tree caching. | |
344 | */ | |
345 | ||
748a9306 | 346 | for (i = cx_ix; i >= 0; i--) { |
93a17b20 | 347 | cx = &cxstack[i]; |
6b35e009 | 348 | switch (CxTYPE(cx)) { |
93a17b20 | 349 | default: |
748a9306 LW |
350 | if (i == 0 && saweval) { |
351 | seq = cxstack[saweval].blk_oldcop->cop_seq; | |
2680586e | 352 | return pad_findlex(name, newoff, seq, PL_main_cv, -1, saweval, 0); |
748a9306 | 353 | } |
93a17b20 LW |
354 | break; |
355 | case CXt_EVAL: | |
44a8e56a | 356 | switch (cx->blk_eval.old_op_type) { |
357 | case OP_ENTEREVAL: | |
6b35e009 GS |
358 | if (CxREALEVAL(cx)) |
359 | saweval = i; | |
44a8e56a | 360 | break; |
faa7e5bb | 361 | case OP_DOFILE: |
44a8e56a | 362 | case OP_REQUIRE: |
faa7e5bb | 363 | /* require/do must have their own scope */ |
44a8e56a | 364 | return 0; |
365 | } | |
93a17b20 | 366 | break; |
7766f137 | 367 | case CXt_FORMAT: |
93a17b20 LW |
368 | case CXt_SUB: |
369 | if (!saweval) | |
370 | return 0; | |
371 | cv = cx->blk_sub.cv; | |
3280af22 | 372 | if (PL_debstash && CvSTASH(cv) == PL_debstash) { /* ignore DB'* scope */ |
748a9306 | 373 | saweval = i; /* so we know where we were called from */ |
93a17b20 | 374 | continue; |
93a17b20 | 375 | } |
748a9306 | 376 | seq = cxstack[saweval].blk_oldcop->cop_seq; |
2680586e | 377 | return pad_findlex(name, newoff, seq, cv, i-1, saweval,FINDLEX_NOSEARCH); |
93a17b20 LW |
378 | } |
379 | } | |
380 | ||
748a9306 LW |
381 | return 0; |
382 | } | |
a0d0e21e | 383 | |
748a9306 | 384 | PADOFFSET |
864dbfa3 | 385 | Perl_pad_findmy(pTHX_ char *name) |
748a9306 | 386 | { |
11343788 | 387 | dTHR; |
748a9306 | 388 | I32 off; |
54310121 | 389 | I32 pendoff = 0; |
748a9306 | 390 | SV *sv; |
3280af22 NIS |
391 | SV **svp = AvARRAY(PL_comppad_name); |
392 | U32 seq = PL_cop_seqmax; | |
6b35e009 | 393 | PERL_CONTEXT *cx; |
33b8ce05 | 394 | CV *outside; |
748a9306 | 395 | |
11343788 MB |
396 | #ifdef USE_THREADS |
397 | /* | |
398 | * Special case to get lexical (and hence per-thread) @_. | |
399 | * XXX I need to find out how to tell at parse-time whether use | |
400 | * of @_ should refer to a lexical (from a sub) or defgv (global | |
401 | * scope and maybe weird sub-ish things like formats). See | |
402 | * startsub in perly.y. It's possible that @_ could be lexical | |
403 | * (at least from subs) even in non-threaded perl. | |
404 | */ | |
405 | if (strEQ(name, "@_")) | |
406 | return 0; /* success. (NOT_IN_PAD indicates failure) */ | |
407 | #endif /* USE_THREADS */ | |
408 | ||
748a9306 | 409 | /* The one we're looking for is probably just before comppad_name_fill. */ |
3280af22 | 410 | for (off = AvFILLp(PL_comppad_name); off > 0; off--) { |
a0d0e21e | 411 | if ((sv = svp[off]) && |
3280af22 | 412 | sv != &PL_sv_undef && |
54310121 | 413 | (!SvIVX(sv) || |
414 | (seq <= SvIVX(sv) && | |
415 | seq > I_32(SvNVX(sv)))) && | |
a0d0e21e LW |
416 | strEQ(SvPVX(sv), name)) |
417 | { | |
77ca0c92 | 418 | if (SvIVX(sv) || SvFLAGS(sv) & SVpad_OUR) |
54310121 | 419 | return (PADOFFSET)off; |
420 | pendoff = off; /* this pending def. will override import */ | |
a0d0e21e LW |
421 | } |
422 | } | |
748a9306 | 423 | |
33b8ce05 GS |
424 | outside = CvOUTSIDE(PL_compcv); |
425 | ||
426 | /* Check if if we're compiling an eval'', and adjust seq to be the | |
427 | * eval's seq number. This depends on eval'' having a non-null | |
428 | * CvOUTSIDE() while it is being compiled. The eval'' itself is | |
1aff0e91 GS |
429 | * identified by CvEVAL being true and CvGV being null. */ |
430 | if (outside && CvEVAL(PL_compcv) && !CvGV(PL_compcv) && cxstack_ix >= 0) { | |
6b35e009 GS |
431 | cx = &cxstack[cxstack_ix]; |
432 | if (CxREALEVAL(cx)) | |
433 | seq = cx->blk_oldcop->cop_seq; | |
434 | } | |
435 | ||
748a9306 | 436 | /* See if it's in a nested scope */ |
2680586e | 437 | off = pad_findlex(name, 0, seq, outside, cxstack_ix, 0, 0); |
54310121 | 438 | if (off) { |
439 | /* If there is a pending local definition, this new alias must die */ | |
440 | if (pendoff) | |
3280af22 | 441 | SvIVX(AvARRAY(PL_comppad_name)[off]) = seq; |
11343788 | 442 | return off; /* pad_findlex returns 0 for failure...*/ |
54310121 | 443 | } |
11343788 | 444 | return NOT_IN_PAD; /* ...but we return NOT_IN_PAD for failure */ |
93a17b20 LW |
445 | } |
446 | ||
447 | void | |
864dbfa3 | 448 | Perl_pad_leavemy(pTHX_ I32 fill) |
93a17b20 | 449 | { |
0453d815 | 450 | dTHR; |
93a17b20 | 451 | I32 off; |
3280af22 | 452 | SV **svp = AvARRAY(PL_comppad_name); |
93a17b20 | 453 | SV *sv; |
3280af22 NIS |
454 | if (PL_min_intro_pending && fill < PL_min_intro_pending) { |
455 | for (off = PL_max_intro_pending; off >= PL_min_intro_pending; off--) { | |
0453d815 PM |
456 | if ((sv = svp[off]) && sv != &PL_sv_undef && ckWARN_d(WARN_INTERNAL)) |
457 | Perl_warner(aTHX_ WARN_INTERNAL, "%s never introduced", SvPVX(sv)); | |
8990e307 LW |
458 | } |
459 | } | |
460 | /* "Deintroduce" my variables that are leaving with this scope. */ | |
3280af22 | 461 | for (off = AvFILLp(PL_comppad_name); off > fill; off--) { |
c53d7c7d | 462 | if ((sv = svp[off]) && sv != &PL_sv_undef && SvIVX(sv) == PAD_MAX) |
3280af22 | 463 | SvIVX(sv) = PL_cop_seqmax; |
93a17b20 LW |
464 | } |
465 | } | |
466 | ||
467 | PADOFFSET | |
864dbfa3 | 468 | Perl_pad_alloc(pTHX_ I32 optype, U32 tmptype) |
79072805 | 469 | { |
11343788 | 470 | dTHR; |
79072805 LW |
471 | SV *sv; |
472 | I32 retval; | |
473 | ||
3280af22 | 474 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 475 | Perl_croak(aTHX_ "panic: pad_alloc"); |
3280af22 | 476 | if (PL_pad_reset_pending) |
a0d0e21e | 477 | pad_reset(); |
ed6116ce | 478 | if (tmptype & SVs_PADMY) { |
79072805 | 479 | do { |
3280af22 | 480 | sv = *av_fetch(PL_comppad, AvFILLp(PL_comppad) + 1, TRUE); |
ed6116ce | 481 | } while (SvPADBUSY(sv)); /* need a fresh one */ |
3280af22 | 482 | retval = AvFILLp(PL_comppad); |
79072805 LW |
483 | } |
484 | else { | |
3280af22 NIS |
485 | SV **names = AvARRAY(PL_comppad_name); |
486 | SSize_t names_fill = AvFILLp(PL_comppad_name); | |
bbce6d69 | 487 | for (;;) { |
488 | /* | |
489 | * "foreach" index vars temporarily become aliases to non-"my" | |
490 | * values. Thus we must skip, not just pad values that are | |
491 | * marked as current pad values, but also those with names. | |
492 | */ | |
3280af22 NIS |
493 | if (++PL_padix <= names_fill && |
494 | (sv = names[PL_padix]) && sv != &PL_sv_undef) | |
bbce6d69 | 495 | continue; |
3280af22 | 496 | sv = *av_fetch(PL_comppad, PL_padix, TRUE); |
743e66e6 | 497 | if (!(SvFLAGS(sv) & (SVs_PADTMP|SVs_PADMY)) && !IS_PADGV(sv)) |
bbce6d69 | 498 | break; |
499 | } | |
3280af22 | 500 | retval = PL_padix; |
79072805 | 501 | } |
8990e307 | 502 | SvFLAGS(sv) |= tmptype; |
3280af22 | 503 | PL_curpad = AvARRAY(PL_comppad); |
11343788 | 504 | #ifdef USE_THREADS |
b900a521 JH |
505 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
506 | "0x%"UVxf" Pad 0x%"UVxf" alloc %ld for %s\n", | |
507 | PTR2UV(thr), PTR2UV(PL_curpad), | |
22c35a8c | 508 | (long) retval, PL_op_name[optype])); |
11343788 | 509 | #else |
b900a521 JH |
510 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
511 | "Pad 0x%"UVxf" alloc %ld for %s\n", | |
512 | PTR2UV(PL_curpad), | |
22c35a8c | 513 | (long) retval, PL_op_name[optype])); |
11343788 | 514 | #endif /* USE_THREADS */ |
79072805 LW |
515 | return (PADOFFSET)retval; |
516 | } | |
517 | ||
518 | SV * | |
864dbfa3 | 519 | Perl_pad_sv(pTHX_ PADOFFSET po) |
79072805 | 520 | { |
11343788 MB |
521 | dTHR; |
522 | #ifdef USE_THREADS | |
b900a521 | 523 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
f1dbda3d JH |
524 | "0x%"UVxf" Pad 0x%"UVxf" sv %"IVdf"\n", |
525 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 526 | #else |
79072805 | 527 | if (!po) |
cea2e8a9 | 528 | Perl_croak(aTHX_ "panic: pad_sv po"); |
97835f67 JH |
529 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" sv %"IVdf"\n", |
530 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 531 | #endif /* USE_THREADS */ |
3280af22 | 532 | return PL_curpad[po]; /* eventually we'll turn this into a macro */ |
79072805 LW |
533 | } |
534 | ||
535 | void | |
864dbfa3 | 536 | Perl_pad_free(pTHX_ PADOFFSET po) |
79072805 | 537 | { |
11343788 | 538 | dTHR; |
3280af22 | 539 | if (!PL_curpad) |
a0d0e21e | 540 | return; |
3280af22 | 541 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 542 | Perl_croak(aTHX_ "panic: pad_free curpad"); |
79072805 | 543 | if (!po) |
cea2e8a9 | 544 | Perl_croak(aTHX_ "panic: pad_free po"); |
11343788 | 545 | #ifdef USE_THREADS |
b900a521 | 546 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
7766f137 | 547 | "0x%"UVxf" Pad 0x%"UVxf" free %"IVdf"\n", |
f1dbda3d | 548 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); |
11343788 | 549 | #else |
97835f67 JH |
550 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" free %"IVdf"\n", |
551 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 552 | #endif /* USE_THREADS */ |
2aa1bedc | 553 | if (PL_curpad[po] && PL_curpad[po] != &PL_sv_undef) { |
3280af22 | 554 | SvPADTMP_off(PL_curpad[po]); |
2aa1bedc GS |
555 | #ifdef USE_ITHREADS |
556 | SvREADONLY_off(PL_curpad[po]); /* could be a freed constant */ | |
557 | #endif | |
558 | } | |
3280af22 NIS |
559 | if ((I32)po < PL_padix) |
560 | PL_padix = po - 1; | |
79072805 LW |
561 | } |
562 | ||
563 | void | |
864dbfa3 | 564 | Perl_pad_swipe(pTHX_ PADOFFSET po) |
79072805 | 565 | { |
11343788 | 566 | dTHR; |
3280af22 | 567 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 568 | Perl_croak(aTHX_ "panic: pad_swipe curpad"); |
79072805 | 569 | if (!po) |
cea2e8a9 | 570 | Perl_croak(aTHX_ "panic: pad_swipe po"); |
11343788 | 571 | #ifdef USE_THREADS |
b900a521 | 572 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
f1dbda3d JH |
573 | "0x%"UVxf" Pad 0x%"UVxf" swipe %"IVdf"\n", |
574 | PTR2UV(thr), PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 575 | #else |
97835f67 JH |
576 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" swipe %"IVdf"\n", |
577 | PTR2UV(PL_curpad), (IV)po)); | |
11343788 | 578 | #endif /* USE_THREADS */ |
3280af22 NIS |
579 | SvPADTMP_off(PL_curpad[po]); |
580 | PL_curpad[po] = NEWSV(1107,0); | |
581 | SvPADTMP_on(PL_curpad[po]); | |
582 | if ((I32)po < PL_padix) | |
583 | PL_padix = po - 1; | |
79072805 LW |
584 | } |
585 | ||
d9bb4600 GS |
586 | /* XXX pad_reset() is currently disabled because it results in serious bugs. |
587 | * It causes pad temp TARGs to be shared between OPs. Since TARGs are pushed | |
588 | * on the stack by OPs that use them, there are several ways to get an alias | |
589 | * to a shared TARG. Such an alias will change randomly and unpredictably. | |
590 | * We avoid doing this until we can think of a Better Way. | |
591 | * GSAR 97-10-29 */ | |
79072805 | 592 | void |
864dbfa3 | 593 | Perl_pad_reset(pTHX) |
79072805 | 594 | { |
d9bb4600 | 595 | #ifdef USE_BROKEN_PAD_RESET |
11343788 | 596 | dTHR; |
79072805 LW |
597 | register I32 po; |
598 | ||
6b88bc9c | 599 | if (AvARRAY(PL_comppad) != PL_curpad) |
cea2e8a9 | 600 | Perl_croak(aTHX_ "panic: pad_reset curpad"); |
11343788 | 601 | #ifdef USE_THREADS |
b900a521 JH |
602 | DEBUG_X(PerlIO_printf(Perl_debug_log, |
603 | "0x%"UVxf" Pad 0x%"UVxf" reset\n", | |
604 | PTR2UV(thr), PTR2UV(PL_curpad))); | |
11343788 | 605 | #else |
b900a521 JH |
606 | DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" reset\n", |
607 | PTR2UV(PL_curpad))); | |
11343788 | 608 | #endif /* USE_THREADS */ |
6b88bc9c GS |
609 | if (!PL_tainting) { /* Can't mix tainted and non-tainted temporaries. */ |
610 | for (po = AvMAX(PL_comppad); po > PL_padix_floor; po--) { | |
611 | if (PL_curpad[po] && !SvIMMORTAL(PL_curpad[po])) | |
612 | SvPADTMP_off(PL_curpad[po]); | |
748a9306 | 613 | } |
6b88bc9c | 614 | PL_padix = PL_padix_floor; |
79072805 | 615 | } |
d9bb4600 | 616 | #endif |
3280af22 | 617 | PL_pad_reset_pending = FALSE; |
79072805 LW |
618 | } |
619 | ||
a863c7d1 | 620 | #ifdef USE_THREADS |
54b9620d | 621 | /* find_threadsv is not reentrant */ |
a863c7d1 | 622 | PADOFFSET |
864dbfa3 | 623 | Perl_find_threadsv(pTHX_ const char *name) |
a863c7d1 MB |
624 | { |
625 | dTHR; | |
626 | char *p; | |
627 | PADOFFSET key; | |
554b3eca | 628 | SV **svp; |
54b9620d | 629 | /* We currently only handle names of a single character */ |
533c011a | 630 | p = strchr(PL_threadsv_names, *name); |
a863c7d1 MB |
631 | if (!p) |
632 | return NOT_IN_PAD; | |
533c011a | 633 | key = p - PL_threadsv_names; |
2d8e6c8d | 634 | MUTEX_LOCK(&thr->mutex); |
54b9620d | 635 | svp = av_fetch(thr->threadsv, key, FALSE); |
2d8e6c8d GS |
636 | if (svp) |
637 | MUTEX_UNLOCK(&thr->mutex); | |
638 | else { | |
554b3eca | 639 | SV *sv = NEWSV(0, 0); |
54b9620d | 640 | av_store(thr->threadsv, key, sv); |
940cb80d | 641 | thr->threadsvp = AvARRAY(thr->threadsv); |
2d8e6c8d | 642 | MUTEX_UNLOCK(&thr->mutex); |
554b3eca MB |
643 | /* |
644 | * Some magic variables used to be automagically initialised | |
645 | * in gv_fetchpv. Those which are now per-thread magicals get | |
646 | * initialised here instead. | |
647 | */ | |
648 | switch (*name) { | |
54b9620d MB |
649 | case '_': |
650 | break; | |
554b3eca MB |
651 | case ';': |
652 | sv_setpv(sv, "\034"); | |
54b9620d | 653 | sv_magic(sv, 0, 0, name, 1); |
554b3eca | 654 | break; |
c277df42 IZ |
655 | case '&': |
656 | case '`': | |
657 | case '\'': | |
533c011a | 658 | PL_sawampersand = TRUE; |
a3f914c5 GS |
659 | /* FALL THROUGH */ |
660 | case '1': | |
661 | case '2': | |
662 | case '3': | |
663 | case '4': | |
664 | case '5': | |
665 | case '6': | |
666 | case '7': | |
667 | case '8': | |
668 | case '9': | |
c277df42 | 669 | SvREADONLY_on(sv); |
d8b5173a | 670 | /* FALL THROUGH */ |
067391ea GS |
671 | |
672 | /* XXX %! tied to Errno.pm needs to be added here. | |
673 | * See gv_fetchpv(). */ | |
674 | /* case '!': */ | |
675 | ||
54b9620d MB |
676 | default: |
677 | sv_magic(sv, 0, 0, name, 1); | |
554b3eca | 678 | } |
bf49b057 | 679 | DEBUG_S(PerlIO_printf(Perl_error_log, |
54b9620d | 680 | "find_threadsv: new SV %p for $%s%c\n", |
554b3eca MB |
681 | sv, (*name < 32) ? "^" : "", |
682 | (*name < 32) ? toCTRL(*name) : *name)); | |
a863c7d1 MB |
683 | } |
684 | return key; | |
685 | } | |
686 | #endif /* USE_THREADS */ | |
687 | ||
79072805 LW |
688 | /* Destructor */ |
689 | ||
690 | void | |
864dbfa3 | 691 | Perl_op_free(pTHX_ OP *o) |
79072805 | 692 | { |
85e6fe83 | 693 | register OP *kid, *nextkid; |
acb36ea4 | 694 | OPCODE type; |
79072805 | 695 | |
5dc0d613 | 696 | if (!o || o->op_seq == (U16)-1) |
79072805 LW |
697 | return; |
698 | ||
7934575e GS |
699 | if (o->op_private & OPpREFCOUNTED) { |
700 | switch (o->op_type) { | |
701 | case OP_LEAVESUB: | |
702 | case OP_LEAVESUBLV: | |
703 | case OP_LEAVEEVAL: | |
704 | case OP_LEAVE: | |
705 | case OP_SCOPE: | |
706 | case OP_LEAVEWRITE: | |
707 | OP_REFCNT_LOCK; | |
708 | if (OpREFCNT_dec(o)) { | |
709 | OP_REFCNT_UNLOCK; | |
710 | return; | |
711 | } | |
712 | OP_REFCNT_UNLOCK; | |
713 | break; | |
714 | default: | |
715 | break; | |
716 | } | |
717 | } | |
718 | ||
11343788 MB |
719 | if (o->op_flags & OPf_KIDS) { |
720 | for (kid = cUNOPo->op_first; kid; kid = nextkid) { | |
85e6fe83 | 721 | nextkid = kid->op_sibling; /* Get before next freeing kid */ |
79072805 | 722 | op_free(kid); |
85e6fe83 | 723 | } |
79072805 | 724 | } |
acb36ea4 GS |
725 | type = o->op_type; |
726 | if (type == OP_NULL) | |
727 | type = o->op_targ; | |
728 | ||
729 | /* COP* is not cleared by op_clear() so that we may track line | |
730 | * numbers etc even after null() */ | |
731 | if (type == OP_NEXTSTATE || type == OP_SETSTATE || type == OP_DBSTATE) | |
732 | cop_free((COP*)o); | |
733 | ||
734 | op_clear(o); | |
735 | ||
736 | #ifdef PL_OP_SLAB_ALLOC | |
737 | if ((char *) o == PL_OpPtr) | |
738 | { | |
739 | } | |
740 | #else | |
741 | Safefree(o); | |
742 | #endif | |
743 | } | |
79072805 | 744 | |
acb36ea4 GS |
745 | STATIC void |
746 | S_op_clear(pTHX_ OP *o) | |
747 | { | |
11343788 | 748 | switch (o->op_type) { |
acb36ea4 GS |
749 | case OP_NULL: /* Was holding old type, if any. */ |
750 | case OP_ENTEREVAL: /* Was holding hints. */ | |
751 | #ifdef USE_THREADS | |
752 | case OP_THREADSV: /* Was holding index into thr->threadsv AV. */ | |
753 | #endif | |
754 | o->op_targ = 0; | |
a0d0e21e | 755 | break; |
554b3eca | 756 | #ifdef USE_THREADS |
8dd3ba40 SM |
757 | case OP_ENTERITER: |
758 | if (!(o->op_flags & OPf_SPECIAL)) | |
759 | break; | |
760 | /* FALL THROUGH */ | |
554b3eca | 761 | #endif /* USE_THREADS */ |
a6006777 | 762 | default: |
ac4c12e7 | 763 | if (!(o->op_flags & OPf_REF) |
0b94c7bb | 764 | || (PL_check[o->op_type] != MEMBER_TO_FPTR(Perl_ck_ftst))) |
a6006777 | 765 | break; |
766 | /* FALL THROUGH */ | |
463ee0b2 | 767 | case OP_GVSV: |
79072805 | 768 | case OP_GV: |
a6006777 | 769 | case OP_AELEMFAST: |
350de78d | 770 | #ifdef USE_ITHREADS |
971a9dd3 GS |
771 | if (cPADOPo->op_padix > 0) { |
772 | if (PL_curpad) { | |
638eceb6 | 773 | GV *gv = cGVOPo_gv; |
971a9dd3 GS |
774 | pad_swipe(cPADOPo->op_padix); |
775 | /* No GvIN_PAD_off(gv) here, because other references may still | |
776 | * exist on the pad */ | |
777 | SvREFCNT_dec(gv); | |
778 | } | |
779 | cPADOPo->op_padix = 0; | |
780 | } | |
350de78d | 781 | #else |
971a9dd3 | 782 | SvREFCNT_dec(cSVOPo->op_sv); |
7934575e | 783 | cSVOPo->op_sv = Nullsv; |
350de78d | 784 | #endif |
79072805 LW |
785 | break; |
786 | case OP_CONST: | |
11343788 | 787 | SvREFCNT_dec(cSVOPo->op_sv); |
acb36ea4 | 788 | cSVOPo->op_sv = Nullsv; |
79072805 | 789 | break; |
748a9306 LW |
790 | case OP_GOTO: |
791 | case OP_NEXT: | |
792 | case OP_LAST: | |
793 | case OP_REDO: | |
11343788 | 794 | if (o->op_flags & (OPf_SPECIAL|OPf_STACKED|OPf_KIDS)) |
748a9306 LW |
795 | break; |
796 | /* FALL THROUGH */ | |
a0d0e21e | 797 | case OP_TRANS: |
acb36ea4 | 798 | if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { |
a0ed51b3 | 799 | SvREFCNT_dec(cSVOPo->op_sv); |
acb36ea4 GS |
800 | cSVOPo->op_sv = Nullsv; |
801 | } | |
802 | else { | |
a0ed51b3 | 803 | Safefree(cPVOPo->op_pv); |
acb36ea4 GS |
804 | cPVOPo->op_pv = Nullch; |
805 | } | |
a0d0e21e LW |
806 | break; |
807 | case OP_SUBST: | |
11343788 | 808 | op_free(cPMOPo->op_pmreplroot); |
971a9dd3 | 809 | goto clear_pmop; |
748a9306 | 810 | case OP_PUSHRE: |
971a9dd3 GS |
811 | #ifdef USE_ITHREADS |
812 | if ((PADOFFSET)cPMOPo->op_pmreplroot) { | |
813 | if (PL_curpad) { | |
814 | GV *gv = (GV*)PL_curpad[(PADOFFSET)cPMOPo->op_pmreplroot]; | |
815 | pad_swipe((PADOFFSET)cPMOPo->op_pmreplroot); | |
816 | /* No GvIN_PAD_off(gv) here, because other references may still | |
817 | * exist on the pad */ | |
818 | SvREFCNT_dec(gv); | |
819 | } | |
820 | } | |
821 | #else | |
822 | SvREFCNT_dec((SV*)cPMOPo->op_pmreplroot); | |
823 | #endif | |
824 | /* FALL THROUGH */ | |
a0d0e21e | 825 | case OP_MATCH: |
8782bef2 | 826 | case OP_QR: |
971a9dd3 GS |
827 | clear_pmop: |
828 | cPMOPo->op_pmreplroot = Nullop; | |
c277df42 | 829 | ReREFCNT_dec(cPMOPo->op_pmregexp); |
acb36ea4 | 830 | cPMOPo->op_pmregexp = (REGEXP*)NULL; |
a0d0e21e | 831 | break; |
79072805 LW |
832 | } |
833 | ||
743e66e6 | 834 | if (o->op_targ > 0) { |
11343788 | 835 | pad_free(o->op_targ); |
743e66e6 GS |
836 | o->op_targ = 0; |
837 | } | |
79072805 LW |
838 | } |
839 | ||
76e3520e | 840 | STATIC void |
3eb57f73 HS |
841 | S_cop_free(pTHX_ COP* cop) |
842 | { | |
843 | Safefree(cop->cop_label); | |
57843af0 GS |
844 | #ifdef USE_ITHREADS |
845 | Safefree(CopFILE(cop)); /* XXXXX share in a pvtable? */ | |
11faa288 | 846 | Safefree(CopSTASHPV(cop)); /* XXXXX share in a pvtable? */ |
57843af0 | 847 | #else |
11faa288 | 848 | /* NOTE: COP.cop_stash is not refcounted */ |
cc49e20b | 849 | SvREFCNT_dec(CopFILEGV(cop)); |
57843af0 | 850 | #endif |
0453d815 | 851 | if (! specialWARN(cop->cop_warnings)) |
3eb57f73 HS |
852 | SvREFCNT_dec(cop->cop_warnings); |
853 | } | |
854 | ||
855 | STATIC void | |
cea2e8a9 | 856 | S_null(pTHX_ OP *o) |
8990e307 | 857 | { |
acb36ea4 GS |
858 | if (o->op_type == OP_NULL) |
859 | return; | |
860 | op_clear(o); | |
11343788 MB |
861 | o->op_targ = o->op_type; |
862 | o->op_type = OP_NULL; | |
22c35a8c | 863 | o->op_ppaddr = PL_ppaddr[OP_NULL]; |
8990e307 LW |
864 | } |
865 | ||
79072805 LW |
866 | /* Contextualizers */ |
867 | ||
463ee0b2 | 868 | #define LINKLIST(o) ((o)->op_next ? (o)->op_next : linklist((OP*)o)) |
79072805 LW |
869 | |
870 | OP * | |
864dbfa3 | 871 | Perl_linklist(pTHX_ OP *o) |
79072805 LW |
872 | { |
873 | register OP *kid; | |
874 | ||
11343788 MB |
875 | if (o->op_next) |
876 | return o->op_next; | |
79072805 LW |
877 | |
878 | /* establish postfix order */ | |
11343788 MB |
879 | if (cUNOPo->op_first) { |
880 | o->op_next = LINKLIST(cUNOPo->op_first); | |
881 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { | |
79072805 LW |
882 | if (kid->op_sibling) |
883 | kid->op_next = LINKLIST(kid->op_sibling); | |
884 | else | |
11343788 | 885 | kid->op_next = o; |
79072805 LW |
886 | } |
887 | } | |
888 | else | |
11343788 | 889 | o->op_next = o; |
79072805 | 890 | |
11343788 | 891 | return o->op_next; |
79072805 LW |
892 | } |
893 | ||
894 | OP * | |
864dbfa3 | 895 | Perl_scalarkids(pTHX_ OP *o) |
79072805 LW |
896 | { |
897 | OP *kid; | |
11343788 MB |
898 | if (o && o->op_flags & OPf_KIDS) { |
899 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
79072805 LW |
900 | scalar(kid); |
901 | } | |
11343788 | 902 | return o; |
79072805 LW |
903 | } |
904 | ||
76e3520e | 905 | STATIC OP * |
cea2e8a9 | 906 | S_scalarboolean(pTHX_ OP *o) |
8990e307 | 907 | { |
d008e5eb | 908 | if (o->op_type == OP_SASSIGN && cBINOPo->op_first->op_type == OP_CONST) { |
0f15f207 | 909 | dTHR; |
d008e5eb | 910 | if (ckWARN(WARN_SYNTAX)) { |
57843af0 | 911 | line_t oldline = CopLINE(PL_curcop); |
a0d0e21e | 912 | |
d008e5eb | 913 | if (PL_copline != NOLINE) |
57843af0 | 914 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 915 | Perl_warner(aTHX_ WARN_SYNTAX, "Found = in conditional, should be =="); |
57843af0 | 916 | CopLINE_set(PL_curcop, oldline); |
d008e5eb | 917 | } |
a0d0e21e | 918 | } |
11343788 | 919 | return scalar(o); |
8990e307 LW |
920 | } |
921 | ||
922 | OP * | |
864dbfa3 | 923 | Perl_scalar(pTHX_ OP *o) |
79072805 LW |
924 | { |
925 | OP *kid; | |
926 | ||
a0d0e21e | 927 | /* assumes no premature commitment */ |
3280af22 | 928 | if (!o || (o->op_flags & OPf_WANT) || PL_error_count |
5dc0d613 | 929 | || o->op_type == OP_RETURN) |
7e363e51 | 930 | { |
11343788 | 931 | return o; |
7e363e51 | 932 | } |
79072805 | 933 | |
5dc0d613 | 934 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_SCALAR; |
79072805 | 935 | |
11343788 | 936 | switch (o->op_type) { |
79072805 | 937 | case OP_REPEAT: |
11343788 MB |
938 | if (o->op_private & OPpREPEAT_DOLIST) |
939 | null(((LISTOP*)cBINOPo->op_first)->op_first); | |
940 | scalar(cBINOPo->op_first); | |
8990e307 | 941 | break; |
79072805 LW |
942 | case OP_OR: |
943 | case OP_AND: | |
944 | case OP_COND_EXPR: | |
11343788 | 945 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
8990e307 | 946 | scalar(kid); |
79072805 | 947 | break; |
a0d0e21e | 948 | case OP_SPLIT: |
11343788 | 949 | if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) { |
a0d0e21e LW |
950 | if (!kPMOP->op_pmreplroot) |
951 | deprecate("implicit split to @_"); | |
952 | } | |
953 | /* FALL THROUGH */ | |
79072805 | 954 | case OP_MATCH: |
8782bef2 | 955 | case OP_QR: |
79072805 LW |
956 | case OP_SUBST: |
957 | case OP_NULL: | |
8990e307 | 958 | default: |
11343788 MB |
959 | if (o->op_flags & OPf_KIDS) { |
960 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) | |
8990e307 LW |
961 | scalar(kid); |
962 | } | |
79072805 LW |
963 | break; |
964 | case OP_LEAVE: | |
965 | case OP_LEAVETRY: | |
5dc0d613 | 966 | kid = cLISTOPo->op_first; |
54310121 | 967 | scalar(kid); |
155aba94 | 968 | while ((kid = kid->op_sibling)) { |
54310121 | 969 | if (kid->op_sibling) |
970 | scalarvoid(kid); | |
971 | else | |
972 | scalar(kid); | |
973 | } | |
3280af22 | 974 | WITH_THR(PL_curcop = &PL_compiling); |
54310121 | 975 | break; |
748a9306 | 976 | case OP_SCOPE: |
79072805 | 977 | case OP_LINESEQ: |
8990e307 | 978 | case OP_LIST: |
11343788 | 979 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
79072805 LW |
980 | if (kid->op_sibling) |
981 | scalarvoid(kid); | |
982 | else | |
983 | scalar(kid); | |
984 | } | |
3280af22 | 985 | WITH_THR(PL_curcop = &PL_compiling); |
79072805 LW |
986 | break; |
987 | } | |
11343788 | 988 | return o; |
79072805 LW |
989 | } |
990 | ||
991 | OP * | |
864dbfa3 | 992 | Perl_scalarvoid(pTHX_ OP *o) |
79072805 LW |
993 | { |
994 | OP *kid; | |
8990e307 LW |
995 | char* useless = 0; |
996 | SV* sv; | |
2ebea0a1 GS |
997 | U8 want; |
998 | ||
acb36ea4 GS |
999 | if (o->op_type == OP_NEXTSTATE |
1000 | || o->op_type == OP_SETSTATE | |
1001 | || o->op_type == OP_DBSTATE | |
1002 | || (o->op_type == OP_NULL && (o->op_targ == OP_NEXTSTATE | |
1003 | || o->op_targ == OP_SETSTATE | |
1004 | || o->op_targ == OP_DBSTATE))) | |
2ebea0a1 GS |
1005 | { |
1006 | dTHR; | |
1007 | PL_curcop = (COP*)o; /* for warning below */ | |
1008 | } | |
79072805 | 1009 | |
54310121 | 1010 | /* assumes no premature commitment */ |
2ebea0a1 GS |
1011 | want = o->op_flags & OPf_WANT; |
1012 | if ((want && want != OPf_WANT_SCALAR) || PL_error_count | |
5dc0d613 | 1013 | || o->op_type == OP_RETURN) |
7e363e51 | 1014 | { |
11343788 | 1015 | return o; |
7e363e51 | 1016 | } |
79072805 | 1017 | |
b162f9ea | 1018 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1019 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1020 | { | |
b162f9ea | 1021 | return scalar(o); /* As if inside SASSIGN */ |
7e363e51 | 1022 | } |
b162f9ea | 1023 | |
5dc0d613 | 1024 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_VOID; |
79072805 | 1025 | |
11343788 | 1026 | switch (o->op_type) { |
79072805 | 1027 | default: |
22c35a8c | 1028 | if (!(PL_opargs[o->op_type] & OA_FOLDCONST)) |
8990e307 | 1029 | break; |
36477c24 | 1030 | /* FALL THROUGH */ |
1031 | case OP_REPEAT: | |
11343788 | 1032 | if (o->op_flags & OPf_STACKED) |
8990e307 | 1033 | break; |
5d82c453 GA |
1034 | goto func_ops; |
1035 | case OP_SUBSTR: | |
1036 | if (o->op_private == 4) | |
1037 | break; | |
8990e307 LW |
1038 | /* FALL THROUGH */ |
1039 | case OP_GVSV: | |
1040 | case OP_WANTARRAY: | |
1041 | case OP_GV: | |
1042 | case OP_PADSV: | |
1043 | case OP_PADAV: | |
1044 | case OP_PADHV: | |
1045 | case OP_PADANY: | |
1046 | case OP_AV2ARYLEN: | |
8990e307 | 1047 | case OP_REF: |
a0d0e21e LW |
1048 | case OP_REFGEN: |
1049 | case OP_SREFGEN: | |
8990e307 LW |
1050 | case OP_DEFINED: |
1051 | case OP_HEX: | |
1052 | case OP_OCT: | |
1053 | case OP_LENGTH: | |
8990e307 LW |
1054 | case OP_VEC: |
1055 | case OP_INDEX: | |
1056 | case OP_RINDEX: | |
1057 | case OP_SPRINTF: | |
1058 | case OP_AELEM: | |
1059 | case OP_AELEMFAST: | |
1060 | case OP_ASLICE: | |
8990e307 LW |
1061 | case OP_HELEM: |
1062 | case OP_HSLICE: | |
1063 | case OP_UNPACK: | |
1064 | case OP_PACK: | |
8990e307 LW |
1065 | case OP_JOIN: |
1066 | case OP_LSLICE: | |
1067 | case OP_ANONLIST: | |
1068 | case OP_ANONHASH: | |
1069 | case OP_SORT: | |
1070 | case OP_REVERSE: | |
1071 | case OP_RANGE: | |
1072 | case OP_FLIP: | |
1073 | case OP_FLOP: | |
1074 | case OP_CALLER: | |
1075 | case OP_FILENO: | |
1076 | case OP_EOF: | |
1077 | case OP_TELL: | |
1078 | case OP_GETSOCKNAME: | |
1079 | case OP_GETPEERNAME: | |
1080 | case OP_READLINK: | |
1081 | case OP_TELLDIR: | |
1082 | case OP_GETPPID: | |
1083 | case OP_GETPGRP: | |
1084 | case OP_GETPRIORITY: | |
1085 | case OP_TIME: | |
1086 | case OP_TMS: | |
1087 | case OP_LOCALTIME: | |
1088 | case OP_GMTIME: | |
1089 | case OP_GHBYNAME: | |
1090 | case OP_GHBYADDR: | |
1091 | case OP_GHOSTENT: | |
1092 | case OP_GNBYNAME: | |
1093 | case OP_GNBYADDR: | |
1094 | case OP_GNETENT: | |
1095 | case OP_GPBYNAME: | |
1096 | case OP_GPBYNUMBER: | |
1097 | case OP_GPROTOENT: | |
1098 | case OP_GSBYNAME: | |
1099 | case OP_GSBYPORT: | |
1100 | case OP_GSERVENT: | |
1101 | case OP_GPWNAM: | |
1102 | case OP_GPWUID: | |
1103 | case OP_GGRNAM: | |
1104 | case OP_GGRGID: | |
1105 | case OP_GETLOGIN: | |
5d82c453 | 1106 | func_ops: |
64aac5a9 | 1107 | if (!(o->op_private & (OPpLVAL_INTRO|OPpOUR_INTRO))) |
22c35a8c | 1108 | useless = PL_op_desc[o->op_type]; |
8990e307 LW |
1109 | break; |
1110 | ||
1111 | case OP_RV2GV: | |
1112 | case OP_RV2SV: | |
1113 | case OP_RV2AV: | |
1114 | case OP_RV2HV: | |
192587c2 | 1115 | if (!(o->op_private & (OPpLVAL_INTRO|OPpOUR_INTRO)) && |
11343788 | 1116 | (!o->op_sibling || o->op_sibling->op_type != OP_READLINE)) |
8990e307 LW |
1117 | useless = "a variable"; |
1118 | break; | |
79072805 LW |
1119 | |
1120 | case OP_CONST: | |
7766f137 | 1121 | sv = cSVOPo_sv; |
7a52d87a GS |
1122 | if (cSVOPo->op_private & OPpCONST_STRICT) |
1123 | no_bareword_allowed(o); | |
1124 | else { | |
d008e5eb GS |
1125 | dTHR; |
1126 | if (ckWARN(WARN_VOID)) { | |
1127 | useless = "a constant"; | |
1128 | if (SvNIOK(sv) && (SvNV(sv) == 0.0 || SvNV(sv) == 1.0)) | |
1129 | useless = 0; | |
1130 | else if (SvPOK(sv)) { | |
1131 | if (strnEQ(SvPVX(sv), "di", 2) || | |
1132 | strnEQ(SvPVX(sv), "ds", 2) || | |
1133 | strnEQ(SvPVX(sv), "ig", 2)) | |
1134 | useless = 0; | |
1135 | } | |
8990e307 LW |
1136 | } |
1137 | } | |
acb36ea4 | 1138 | null(o); /* don't execute or even remember it */ |
79072805 LW |
1139 | break; |
1140 | ||
1141 | case OP_POSTINC: | |
11343788 | 1142 | o->op_type = OP_PREINC; /* pre-increment is faster */ |
22c35a8c | 1143 | o->op_ppaddr = PL_ppaddr[OP_PREINC]; |
79072805 LW |
1144 | break; |
1145 | ||
1146 | case OP_POSTDEC: | |
11343788 | 1147 | o->op_type = OP_PREDEC; /* pre-decrement is faster */ |
22c35a8c | 1148 | o->op_ppaddr = PL_ppaddr[OP_PREDEC]; |
79072805 LW |
1149 | break; |
1150 | ||
79072805 LW |
1151 | case OP_OR: |
1152 | case OP_AND: | |
1153 | case OP_COND_EXPR: | |
11343788 | 1154 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
79072805 LW |
1155 | scalarvoid(kid); |
1156 | break; | |
5aabfad6 | 1157 | |
a0d0e21e | 1158 | case OP_NULL: |
11343788 | 1159 | if (o->op_flags & OPf_STACKED) |
a0d0e21e | 1160 | break; |
5aabfad6 | 1161 | /* FALL THROUGH */ |
2ebea0a1 GS |
1162 | case OP_NEXTSTATE: |
1163 | case OP_DBSTATE: | |
79072805 LW |
1164 | case OP_ENTERTRY: |
1165 | case OP_ENTER: | |
1166 | case OP_SCALAR: | |
11343788 | 1167 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1168 | break; |
54310121 | 1169 | /* FALL THROUGH */ |
463ee0b2 | 1170 | case OP_SCOPE: |
79072805 LW |
1171 | case OP_LEAVE: |
1172 | case OP_LEAVETRY: | |
a0d0e21e | 1173 | case OP_LEAVELOOP: |
79072805 | 1174 | case OP_LINESEQ: |
79072805 | 1175 | case OP_LIST: |
11343788 | 1176 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
79072805 LW |
1177 | scalarvoid(kid); |
1178 | break; | |
c90c0ff4 | 1179 | case OP_ENTEREVAL: |
5196be3e | 1180 | scalarkids(o); |
c90c0ff4 | 1181 | break; |
5aabfad6 | 1182 | case OP_REQUIRE: |
c90c0ff4 | 1183 | /* all requires must return a boolean value */ |
5196be3e MB |
1184 | o->op_flags &= ~OPf_WANT; |
1185 | return scalar(o); | |
a0d0e21e | 1186 | case OP_SPLIT: |
11343788 | 1187 | if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) { |
a0d0e21e LW |
1188 | if (!kPMOP->op_pmreplroot) |
1189 | deprecate("implicit split to @_"); | |
1190 | } | |
1191 | break; | |
79072805 | 1192 | } |
d008e5eb GS |
1193 | if (useless) { |
1194 | dTHR; | |
1195 | if (ckWARN(WARN_VOID)) | |
cea2e8a9 | 1196 | Perl_warner(aTHX_ WARN_VOID, "Useless use of %s in void context", useless); |
d008e5eb | 1197 | } |
11343788 | 1198 | return o; |
79072805 LW |
1199 | } |
1200 | ||
1201 | OP * | |
864dbfa3 | 1202 | Perl_listkids(pTHX_ OP *o) |
79072805 LW |
1203 | { |
1204 | OP *kid; | |
11343788 MB |
1205 | if (o && o->op_flags & OPf_KIDS) { |
1206 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
79072805 LW |
1207 | list(kid); |
1208 | } | |
11343788 | 1209 | return o; |
79072805 LW |
1210 | } |
1211 | ||
1212 | OP * | |
864dbfa3 | 1213 | Perl_list(pTHX_ OP *o) |
79072805 LW |
1214 | { |
1215 | OP *kid; | |
1216 | ||
a0d0e21e | 1217 | /* assumes no premature commitment */ |
3280af22 | 1218 | if (!o || (o->op_flags & OPf_WANT) || PL_error_count |
5dc0d613 | 1219 | || o->op_type == OP_RETURN) |
7e363e51 | 1220 | { |
11343788 | 1221 | return o; |
7e363e51 | 1222 | } |
79072805 | 1223 | |
b162f9ea | 1224 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1225 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1226 | { | |
b162f9ea | 1227 | return o; /* As if inside SASSIGN */ |
7e363e51 | 1228 | } |
b162f9ea | 1229 | |
5dc0d613 | 1230 | o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_LIST; |
79072805 | 1231 | |
11343788 | 1232 | switch (o->op_type) { |
79072805 LW |
1233 | case OP_FLOP: |
1234 | case OP_REPEAT: | |
11343788 | 1235 | list(cBINOPo->op_first); |
79072805 LW |
1236 | break; |
1237 | case OP_OR: | |
1238 | case OP_AND: | |
1239 | case OP_COND_EXPR: | |
11343788 | 1240 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
79072805 LW |
1241 | list(kid); |
1242 | break; | |
1243 | default: | |
1244 | case OP_MATCH: | |
8782bef2 | 1245 | case OP_QR: |
79072805 LW |
1246 | case OP_SUBST: |
1247 | case OP_NULL: | |
11343788 | 1248 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1249 | break; |
11343788 MB |
1250 | if (!o->op_next && cUNOPo->op_first->op_type == OP_FLOP) { |
1251 | list(cBINOPo->op_first); | |
1252 | return gen_constant_list(o); | |
79072805 LW |
1253 | } |
1254 | case OP_LIST: | |
11343788 | 1255 | listkids(o); |
79072805 LW |
1256 | break; |
1257 | case OP_LEAVE: | |
1258 | case OP_LEAVETRY: | |
5dc0d613 | 1259 | kid = cLISTOPo->op_first; |
54310121 | 1260 | list(kid); |
155aba94 | 1261 | while ((kid = kid->op_sibling)) { |
54310121 | 1262 | if (kid->op_sibling) |
1263 | scalarvoid(kid); | |
1264 | else | |
1265 | list(kid); | |
1266 | } | |
3280af22 | 1267 | WITH_THR(PL_curcop = &PL_compiling); |
54310121 | 1268 | break; |
748a9306 | 1269 | case OP_SCOPE: |
79072805 | 1270 | case OP_LINESEQ: |
11343788 | 1271 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
79072805 LW |
1272 | if (kid->op_sibling) |
1273 | scalarvoid(kid); | |
1274 | else | |
1275 | list(kid); | |
1276 | } | |
3280af22 | 1277 | WITH_THR(PL_curcop = &PL_compiling); |
79072805 | 1278 | break; |
c90c0ff4 | 1279 | case OP_REQUIRE: |
1280 | /* all requires must return a boolean value */ | |
5196be3e MB |
1281 | o->op_flags &= ~OPf_WANT; |
1282 | return scalar(o); | |
79072805 | 1283 | } |
11343788 | 1284 | return o; |
79072805 LW |
1285 | } |
1286 | ||
1287 | OP * | |
864dbfa3 | 1288 | Perl_scalarseq(pTHX_ OP *o) |
79072805 LW |
1289 | { |
1290 | OP *kid; | |
1291 | ||
11343788 MB |
1292 | if (o) { |
1293 | if (o->op_type == OP_LINESEQ || | |
1294 | o->op_type == OP_SCOPE || | |
1295 | o->op_type == OP_LEAVE || | |
1296 | o->op_type == OP_LEAVETRY) | |
463ee0b2 | 1297 | { |
0f15f207 | 1298 | dTHR; |
11343788 | 1299 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) { |
ed6116ce | 1300 | if (kid->op_sibling) { |
463ee0b2 | 1301 | scalarvoid(kid); |
ed6116ce | 1302 | } |
463ee0b2 | 1303 | } |
3280af22 | 1304 | PL_curcop = &PL_compiling; |
79072805 | 1305 | } |
11343788 | 1306 | o->op_flags &= ~OPf_PARENS; |
3280af22 | 1307 | if (PL_hints & HINT_BLOCK_SCOPE) |
11343788 | 1308 | o->op_flags |= OPf_PARENS; |
79072805 | 1309 | } |
8990e307 | 1310 | else |
11343788 MB |
1311 | o = newOP(OP_STUB, 0); |
1312 | return o; | |
79072805 LW |
1313 | } |
1314 | ||
76e3520e | 1315 | STATIC OP * |
cea2e8a9 | 1316 | S_modkids(pTHX_ OP *o, I32 type) |
79072805 LW |
1317 | { |
1318 | OP *kid; | |
11343788 MB |
1319 | if (o && o->op_flags & OPf_KIDS) { |
1320 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
463ee0b2 | 1321 | mod(kid, type); |
79072805 | 1322 | } |
11343788 | 1323 | return o; |
79072805 LW |
1324 | } |
1325 | ||
79072805 | 1326 | OP * |
864dbfa3 | 1327 | Perl_mod(pTHX_ OP *o, I32 type) |
79072805 | 1328 | { |
11343788 | 1329 | dTHR; |
79072805 | 1330 | OP *kid; |
2d8e6c8d | 1331 | STRLEN n_a; |
79072805 | 1332 | |
3280af22 | 1333 | if (!o || PL_error_count) |
11343788 | 1334 | return o; |
79072805 | 1335 | |
b162f9ea | 1336 | if ((o->op_private & OPpTARGET_MY) |
7e363e51 GS |
1337 | && (PL_opargs[o->op_type] & OA_TARGLEX))/* OPp share the meaning */ |
1338 | { | |
b162f9ea | 1339 | return o; |
7e363e51 | 1340 | } |
b162f9ea | 1341 | |
11343788 | 1342 | switch (o->op_type) { |
68dc0745 | 1343 | case OP_UNDEF: |
3280af22 | 1344 | PL_modcount++; |
5dc0d613 | 1345 | return o; |
a0d0e21e | 1346 | case OP_CONST: |
11343788 | 1347 | if (!(o->op_private & (OPpCONST_ARYBASE))) |
a0d0e21e | 1348 | goto nomod; |
3280af22 | 1349 | if (PL_eval_start && PL_eval_start->op_type == OP_CONST) { |
7766f137 | 1350 | PL_compiling.cop_arybase = (I32)SvIV(cSVOPx(PL_eval_start)->op_sv); |
3280af22 | 1351 | PL_eval_start = 0; |
a0d0e21e LW |
1352 | } |
1353 | else if (!type) { | |
3280af22 NIS |
1354 | SAVEI32(PL_compiling.cop_arybase); |
1355 | PL_compiling.cop_arybase = 0; | |
a0d0e21e LW |
1356 | } |
1357 | else if (type == OP_REFGEN) | |
1358 | goto nomod; | |
1359 | else | |
cea2e8a9 | 1360 | Perl_croak(aTHX_ "That use of $[ is unsupported"); |
a0d0e21e | 1361 | break; |
5f05dabc | 1362 | case OP_STUB: |
5196be3e | 1363 | if (o->op_flags & OPf_PARENS) |
5f05dabc | 1364 | break; |
1365 | goto nomod; | |
a0d0e21e LW |
1366 | case OP_ENTERSUB: |
1367 | if ((type == OP_UNDEF || type == OP_REFGEN) && | |
11343788 MB |
1368 | !(o->op_flags & OPf_STACKED)) { |
1369 | o->op_type = OP_RV2CV; /* entersub => rv2cv */ | |
22c35a8c | 1370 | o->op_ppaddr = PL_ppaddr[OP_RV2CV]; |
11343788 MB |
1371 | assert(cUNOPo->op_first->op_type == OP_NULL); |
1372 | null(((LISTOP*)cUNOPo->op_first)->op_first);/* disable pushmark */ | |
79072805 LW |
1373 | break; |
1374 | } | |
cd06dffe GS |
1375 | else { /* lvalue subroutine call */ |
1376 | o->op_private |= OPpLVAL_INTRO; | |
4978d6d9 | 1377 | if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN) { |
cd06dffe GS |
1378 | /* Backward compatibility mode: */ |
1379 | o->op_private |= OPpENTERSUB_INARGS; | |
1380 | break; | |
1381 | } | |
1382 | else { /* Compile-time error message: */ | |
1383 | OP *kid = cUNOPo->op_first; | |
1384 | CV *cv; | |
1385 | OP *okid; | |
1386 | ||
1387 | if (kid->op_type == OP_PUSHMARK) | |
1388 | goto skip_kids; | |
1389 | if (kid->op_type != OP_NULL || kid->op_targ != OP_LIST) | |
1390 | Perl_croak(aTHX_ | |
1391 | "panic: unexpected lvalue entersub " | |
1392 | "args: type/targ %ld:%ld", | |
1393 | (long)kid->op_type,kid->op_targ); | |
1394 | kid = kLISTOP->op_first; | |
1395 | skip_kids: | |
1396 | while (kid->op_sibling) | |
1397 | kid = kid->op_sibling; | |
1398 | if (!(kid->op_type == OP_NULL && kid->op_targ == OP_RV2CV)) { | |
1399 | /* Indirect call */ | |
1400 | if (kid->op_type == OP_METHOD_NAMED | |
1401 | || kid->op_type == OP_METHOD) | |
1402 | { | |
87d7fd28 | 1403 | UNOP *newop; |
cd06dffe GS |
1404 | |
1405 | if (kid->op_sibling || kid->op_next != kid) { | |
1406 | yyerror("panic: unexpected optree near method call"); | |
1407 | break; | |
1408 | } | |
1409 | ||
87d7fd28 | 1410 | NewOp(1101, newop, 1, UNOP); |
349fd7b7 GS |
1411 | newop->op_type = OP_RV2CV; |
1412 | newop->op_ppaddr = PL_ppaddr[OP_RV2CV]; | |
87d7fd28 GS |
1413 | newop->op_first = Nullop; |
1414 | newop->op_next = (OP*)newop; | |
1415 | kid->op_sibling = (OP*)newop; | |
349fd7b7 | 1416 | newop->op_private |= OPpLVAL_INTRO; |
cd06dffe GS |
1417 | break; |
1418 | } | |
1419 | ||
1420 | if (kid->op_type != OP_RV2CV) | |
1421 | Perl_croak(aTHX_ | |
1422 | "panic: unexpected lvalue entersub " | |
1423 | "entry via type/targ %ld:%ld", | |
1424 | (long)kid->op_type,kid->op_targ); | |
1425 | kid->op_private |= OPpLVAL_INTRO; | |
1426 | break; /* Postpone until runtime */ | |
1427 | } | |
1428 | ||
1429 | okid = kid; | |
1430 | kid = kUNOP->op_first; | |
1431 | if (kid->op_type == OP_NULL && kid->op_targ == OP_RV2SV) | |
1432 | kid = kUNOP->op_first; | |
1433 | if (kid->op_type == OP_NULL) | |
1434 | Perl_croak(aTHX_ | |
1435 | "Unexpected constant lvalue entersub " | |
1436 | "entry via type/targ %ld:%ld", | |
1437 | (long)kid->op_type,kid->op_targ); | |
1438 | if (kid->op_type != OP_GV) { | |
1439 | /* Restore RV2CV to check lvalueness */ | |
1440 | restore_2cv: | |
1441 | if (kid->op_next && kid->op_next != kid) { /* Happens? */ | |
1442 | okid->op_next = kid->op_next; | |
1443 | kid->op_next = okid; | |
1444 | } | |
1445 | else | |
1446 | okid->op_next = Nullop; | |
1447 | okid->op_type = OP_RV2CV; | |
1448 | okid->op_targ = 0; | |
1449 | okid->op_ppaddr = PL_ppaddr[OP_RV2CV]; | |
1450 | okid->op_private |= OPpLVAL_INTRO; | |
1451 | break; | |
1452 | } | |
1453 | ||
638eceb6 | 1454 | cv = GvCV(kGVOP_gv); |
cd06dffe GS |
1455 | if (!cv) |
1456 | goto restore_2cv; | |
1457 | if (CvLVALUE(cv)) | |
1458 | break; | |
1459 | } | |
1460 | } | |
79072805 LW |
1461 | /* FALL THROUGH */ |
1462 | default: | |
a0d0e21e LW |
1463 | nomod: |
1464 | /* grep, foreach, subcalls, refgen */ | |
1465 | if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN) | |
1466 | break; | |
cea2e8a9 | 1467 | yyerror(Perl_form(aTHX_ "Can't modify %s in %s", |
638bc118 | 1468 | (o->op_type == OP_NULL && (o->op_flags & OPf_SPECIAL) |
cd06dffe GS |
1469 | ? "do block" |
1470 | : (o->op_type == OP_ENTERSUB | |
1471 | ? "non-lvalue subroutine call" | |
1472 | : PL_op_desc[o->op_type])), | |
22c35a8c | 1473 | type ? PL_op_desc[type] : "local")); |
11343788 | 1474 | return o; |
79072805 | 1475 | |
a0d0e21e LW |
1476 | case OP_PREINC: |
1477 | case OP_PREDEC: | |
1478 | case OP_POW: | |
1479 | case OP_MULTIPLY: | |
1480 | case OP_DIVIDE: | |
1481 | case OP_MODULO: | |
1482 | case OP_REPEAT: | |
1483 | case OP_ADD: | |
1484 | case OP_SUBTRACT: | |
1485 | case OP_CONCAT: | |
1486 | case OP_LEFT_SHIFT: | |
1487 | case OP_RIGHT_SHIFT: | |
1488 | case OP_BIT_AND: | |
1489 | case OP_BIT_XOR: | |
1490 | case OP_BIT_OR: | |
1491 | case OP_I_MULTIPLY: | |
1492 | case OP_I_DIVIDE: | |
1493 | case OP_I_MODULO: | |
1494 | case OP_I_ADD: | |
1495 | case OP_I_SUBTRACT: | |
11343788 | 1496 | if (!(o->op_flags & OPf_STACKED)) |
a0d0e21e | 1497 | goto nomod; |
3280af22 | 1498 | PL_modcount++; |
a0d0e21e LW |
1499 | break; |
1500 | ||
79072805 | 1501 | case OP_COND_EXPR: |
11343788 | 1502 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
463ee0b2 | 1503 | mod(kid, type); |
79072805 LW |
1504 | break; |
1505 | ||
1506 | case OP_RV2AV: | |
1507 | case OP_RV2HV: | |
93af7a87 | 1508 | if (!type && cUNOPo->op_first->op_type != OP_GV) |
cea2e8a9 | 1509 | Perl_croak(aTHX_ "Can't localize through a reference"); |
11343788 | 1510 | if (type == OP_REFGEN && o->op_flags & OPf_PARENS) { |
3280af22 | 1511 | PL_modcount = 10000; |
11343788 | 1512 | return o; /* Treat \(@foo) like ordinary list. */ |
748a9306 LW |
1513 | } |
1514 | /* FALL THROUGH */ | |
79072805 | 1515 | case OP_RV2GV: |
5dc0d613 | 1516 | if (scalar_mod_type(o, type)) |
3fe9a6f1 | 1517 | goto nomod; |
11343788 | 1518 | ref(cUNOPo->op_first, o->op_type); |
79072805 LW |
1519 | /* FALL THROUGH */ |
1520 | case OP_AASSIGN: | |
1521 | case OP_ASLICE: | |
1522 | case OP_HSLICE: | |
93a17b20 LW |
1523 | case OP_NEXTSTATE: |
1524 | case OP_DBSTATE: | |
a0d0e21e LW |
1525 | case OP_REFGEN: |
1526 | case OP_CHOMP: | |
3280af22 | 1527 | PL_modcount = 10000; |
79072805 | 1528 | break; |
463ee0b2 | 1529 | case OP_RV2SV: |
11343788 | 1530 | if (!type && cUNOPo->op_first->op_type != OP_GV) |
cea2e8a9 | 1531 | Perl_croak(aTHX_ "Can't localize through a reference"); |
aeea060c | 1532 | ref(cUNOPo->op_first, o->op_type); |
463ee0b2 | 1533 | /* FALL THROUGH */ |
79072805 | 1534 | case OP_GV: |
463ee0b2 | 1535 | case OP_AV2ARYLEN: |
3280af22 | 1536 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 1537 | case OP_SASSIGN: |
bf4b1e52 GS |
1538 | case OP_ANDASSIGN: |
1539 | case OP_ORASSIGN: | |
8990e307 | 1540 | case OP_AELEMFAST: |
3280af22 | 1541 | PL_modcount++; |
8990e307 LW |
1542 | break; |
1543 | ||
748a9306 LW |
1544 | case OP_PADAV: |
1545 | case OP_PADHV: | |
3280af22 | 1546 | PL_modcount = 10000; |
5196be3e MB |
1547 | if (type == OP_REFGEN && o->op_flags & OPf_PARENS) |
1548 | return o; /* Treat \(@foo) like ordinary list. */ | |
1549 | if (scalar_mod_type(o, type)) | |
3fe9a6f1 | 1550 | goto nomod; |
748a9306 LW |
1551 | /* FALL THROUGH */ |
1552 | case OP_PADSV: | |
3280af22 | 1553 | PL_modcount++; |
748a9306 | 1554 | if (!type) |
cea2e8a9 | 1555 | Perl_croak(aTHX_ "Can't localize lexical variable %s", |
2d8e6c8d | 1556 | SvPV(*av_fetch(PL_comppad_name, o->op_targ, 4), n_a)); |
463ee0b2 LW |
1557 | break; |
1558 | ||
554b3eca | 1559 | #ifdef USE_THREADS |
2faa37cc | 1560 | case OP_THREADSV: |
533c011a | 1561 | PL_modcount++; /* XXX ??? */ |
554b3eca MB |
1562 | break; |
1563 | #endif /* USE_THREADS */ | |
1564 | ||
748a9306 LW |
1565 | case OP_PUSHMARK: |
1566 | break; | |
a0d0e21e | 1567 | |
69969c6f SB |
1568 | case OP_KEYS: |
1569 | if (type != OP_SASSIGN) | |
1570 | goto nomod; | |
5d82c453 GA |
1571 | goto lvalue_func; |
1572 | case OP_SUBSTR: | |
1573 | if (o->op_private == 4) /* don't allow 4 arg substr as lvalue */ | |
1574 | goto nomod; | |
5f05dabc | 1575 | /* FALL THROUGH */ |
a0d0e21e | 1576 | case OP_POS: |
463ee0b2 | 1577 | case OP_VEC: |
5d82c453 | 1578 | lvalue_func: |
11343788 MB |
1579 | pad_free(o->op_targ); |
1580 | o->op_targ = pad_alloc(o->op_type, SVs_PADMY); | |
5dc0d613 | 1581 | assert(SvTYPE(PAD_SV(o->op_targ)) == SVt_NULL); |
11343788 MB |
1582 | if (o->op_flags & OPf_KIDS) |
1583 | mod(cBINOPo->op_first->op_sibling, type); | |
463ee0b2 | 1584 | break; |
a0d0e21e | 1585 | |
463ee0b2 LW |
1586 | case OP_AELEM: |
1587 | case OP_HELEM: | |
11343788 | 1588 | ref(cBINOPo->op_first, o->op_type); |
68dc0745 | 1589 | if (type == OP_ENTERSUB && |
5dc0d613 MB |
1590 | !(o->op_private & (OPpLVAL_INTRO | OPpDEREF))) |
1591 | o->op_private |= OPpLVAL_DEFER; | |
3280af22 | 1592 | PL_modcount++; |
463ee0b2 LW |
1593 | break; |
1594 | ||
1595 | case OP_SCOPE: | |
1596 | case OP_LEAVE: | |
1597 | case OP_ENTER: | |
11343788 MB |
1598 | if (o->op_flags & OPf_KIDS) |
1599 | mod(cLISTOPo->op_last, type); | |
a0d0e21e LW |
1600 | break; |
1601 | ||
1602 | case OP_NULL: | |
638bc118 GS |
1603 | if (o->op_flags & OPf_SPECIAL) /* do BLOCK */ |
1604 | goto nomod; | |
1605 | else if (!(o->op_flags & OPf_KIDS)) | |
463ee0b2 | 1606 | break; |
11343788 MB |
1607 | if (o->op_targ != OP_LIST) { |
1608 | mod(cBINOPo->op_first, type); | |
a0d0e21e LW |
1609 | break; |
1610 | } | |
1611 | /* FALL THROUGH */ | |
463ee0b2 | 1612 | case OP_LIST: |
11343788 | 1613 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
463ee0b2 LW |
1614 | mod(kid, type); |
1615 | break; | |
1616 | } | |
11343788 | 1617 | o->op_flags |= OPf_MOD; |
a0d0e21e LW |
1618 | |
1619 | if (type == OP_AASSIGN || type == OP_SASSIGN) | |
11343788 | 1620 | o->op_flags |= OPf_SPECIAL|OPf_REF; |
a0d0e21e | 1621 | else if (!type) { |
11343788 MB |
1622 | o->op_private |= OPpLVAL_INTRO; |
1623 | o->op_flags &= ~OPf_SPECIAL; | |
3280af22 | 1624 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 1625 | } |
a0d0e21e | 1626 | else if (type != OP_GREPSTART && type != OP_ENTERSUB) |
11343788 MB |
1627 | o->op_flags |= OPf_REF; |
1628 | return o; | |
463ee0b2 LW |
1629 | } |
1630 | ||
864dbfa3 | 1631 | STATIC bool |
cea2e8a9 | 1632 | S_scalar_mod_type(pTHX_ OP *o, I32 type) |
3fe9a6f1 | 1633 | { |
1634 | switch (type) { | |
1635 | case OP_SASSIGN: | |
5196be3e | 1636 | if (o->op_type == OP_RV2GV) |
3fe9a6f1 | 1637 | return FALSE; |
1638 | /* FALL THROUGH */ | |
1639 | case OP_PREINC: | |
1640 | case OP_PREDEC: | |
1641 | case OP_POSTINC: | |
1642 | case OP_POSTDEC: | |
1643 | case OP_I_PREINC: | |
1644 | case OP_I_PREDEC: | |
1645 | case OP_I_POSTINC: | |
1646 | case OP_I_POSTDEC: | |
1647 | case OP_POW: | |
1648 | case OP_MULTIPLY: | |
1649 | case OP_DIVIDE: | |
1650 | case OP_MODULO: | |
1651 | case OP_REPEAT: | |
1652 | case OP_ADD: | |
1653 | case OP_SUBTRACT: | |
1654 | case OP_I_MULTIPLY: | |
1655 | case OP_I_DIVIDE: | |
1656 | case OP_I_MODULO: | |
1657 | case OP_I_ADD: | |
1658 | case OP_I_SUBTRACT: | |
1659 | case OP_LEFT_SHIFT: | |
1660 | case OP_RIGHT_SHIFT: | |
1661 | case OP_BIT_AND: | |
1662 | case OP_BIT_XOR: | |
1663 | case OP_BIT_OR: | |
1664 | case OP_CONCAT: | |
1665 | case OP_SUBST: | |
1666 | case OP_TRANS: | |
49e9fbe6 GS |
1667 | case OP_READ: |
1668 | case OP_SYSREAD: | |
1669 | case OP_RECV: | |
bf4b1e52 GS |
1670 | case OP_ANDASSIGN: |
1671 | case OP_ORASSIGN: | |
3fe9a6f1 | 1672 | return TRUE; |
1673 | default: | |
1674 | return FALSE; | |
1675 | } | |
1676 | } | |
1677 | ||
35cd451c | 1678 | STATIC bool |
cea2e8a9 | 1679 | S_is_handle_constructor(pTHX_ OP *o, I32 argnum) |
35cd451c GS |
1680 | { |
1681 | switch (o->op_type) { | |
1682 | case OP_PIPE_OP: | |
1683 | case OP_SOCKPAIR: | |
1684 | if (argnum == 2) | |
1685 | return TRUE; | |
1686 | /* FALL THROUGH */ | |
1687 | case OP_SYSOPEN: | |
1688 | case OP_OPEN: | |
ded8aa31 | 1689 | case OP_SELECT: /* XXX c.f. SelectSaver.pm */ |
35cd451c GS |
1690 | case OP_SOCKET: |
1691 | case OP_OPEN_DIR: | |
1692 | case OP_ACCEPT: | |
1693 | if (argnum == 1) | |
1694 | return TRUE; | |
1695 | /* FALL THROUGH */ | |
1696 | default: | |
1697 | return FALSE; | |
1698 | } | |
1699 | } | |
1700 | ||
463ee0b2 | 1701 | OP * |
864dbfa3 | 1702 | Perl_refkids(pTHX_ OP *o, I32 type) |
463ee0b2 LW |
1703 | { |
1704 | OP *kid; | |
11343788 MB |
1705 | if (o && o->op_flags & OPf_KIDS) { |
1706 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) | |
463ee0b2 LW |
1707 | ref(kid, type); |
1708 | } | |
11343788 | 1709 | return o; |
463ee0b2 LW |
1710 | } |
1711 | ||
1712 | OP * | |
864dbfa3 | 1713 | Perl_ref(pTHX_ OP *o, I32 type) |
463ee0b2 LW |
1714 | { |
1715 | OP *kid; | |
463ee0b2 | 1716 | |
3280af22 | 1717 | if (!o || PL_error_count) |
11343788 | 1718 | return o; |
463ee0b2 | 1719 | |
11343788 | 1720 | switch (o->op_type) { |
a0d0e21e | 1721 | case OP_ENTERSUB: |
afebc493 | 1722 | if ((type == OP_EXISTS || type == OP_DEFINED || type == OP_LOCK) && |
11343788 MB |
1723 | !(o->op_flags & OPf_STACKED)) { |
1724 | o->op_type = OP_RV2CV; /* entersub => rv2cv */ | |
22c35a8c | 1725 | o->op_ppaddr = PL_ppaddr[OP_RV2CV]; |
11343788 MB |
1726 | assert(cUNOPo->op_first->op_type == OP_NULL); |
1727 | null(((LISTOP*)cUNOPo->op_first)->op_first); /* disable pushmark */ | |
1728 | o->op_flags |= OPf_SPECIAL; | |
8990e307 LW |
1729 | } |
1730 | break; | |
aeea060c | 1731 | |
463ee0b2 | 1732 | case OP_COND_EXPR: |
11343788 | 1733 | for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) |
463ee0b2 LW |
1734 | ref(kid, type); |
1735 | break; | |
8990e307 | 1736 | case OP_RV2SV: |
35cd451c GS |
1737 | if (type == OP_DEFINED) |
1738 | o->op_flags |= OPf_SPECIAL; /* don't create GV */ | |
11343788 | 1739 | ref(cUNOPo->op_first, o->op_type); |
4633a7c4 LW |
1740 | /* FALL THROUGH */ |
1741 | case OP_PADSV: | |
5f05dabc | 1742 | if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) { |
5dc0d613 MB |
1743 | o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV |
1744 | : type == OP_RV2HV ? OPpDEREF_HV | |
1745 | : OPpDEREF_SV); | |
11343788 | 1746 | o->op_flags |= OPf_MOD; |
a0d0e21e | 1747 | } |
8990e307 LW |
1748 | break; |
1749 | ||
2faa37cc | 1750 | case OP_THREADSV: |
a863c7d1 MB |
1751 | o->op_flags |= OPf_MOD; /* XXX ??? */ |
1752 | break; | |
1753 | ||
463ee0b2 LW |
1754 | case OP_RV2AV: |
1755 | case OP_RV2HV: | |
aeea060c | 1756 | o->op_flags |= OPf_REF; |
8990e307 | 1757 | /* FALL THROUGH */ |
463ee0b2 | 1758 | case OP_RV2GV: |
35cd451c GS |
1759 | if (type == OP_DEFINED) |
1760 | o->op_flags |= OPf_SPECIAL; /* don't create GV */ | |
11343788 | 1761 | ref(cUNOPo->op_first, o->op_type); |
463ee0b2 | 1762 | break; |
8990e307 | 1763 | |
463ee0b2 LW |
1764 | case OP_PADAV: |
1765 | case OP_PADHV: | |
aeea060c | 1766 | o->op_flags |= OPf_REF; |
79072805 | 1767 | break; |
aeea060c | 1768 | |
8990e307 | 1769 | case OP_SCALAR: |
79072805 | 1770 | case OP_NULL: |
11343788 | 1771 | if (!(o->op_flags & OPf_KIDS)) |
463ee0b2 | 1772 | break; |
11343788 | 1773 | ref(cBINOPo->op_first, type); |
79072805 LW |
1774 | break; |
1775 | case OP_AELEM: | |
1776 | case OP_HELEM: | |
11343788 | 1777 | ref(cBINOPo->op_first, o->op_type); |
5f05dabc | 1778 | if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) { |
5dc0d613 MB |
1779 | o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV |
1780 | : type == OP_RV2HV ? OPpDEREF_HV | |
1781 | : OPpDEREF_SV); | |
11343788 | 1782 | o->op_flags |= OPf_MOD; |
8990e307 | 1783 | } |
79072805 LW |
1784 | break; |
1785 | ||
463ee0b2 | 1786 | case OP_SCOPE: |
79072805 LW |
1787 | case OP_LEAVE: |
1788 | case OP_ENTER: | |
8990e307 | 1789 | case OP_LIST: |
11343788 | 1790 | if (!(o->op_flags & OPf_KIDS)) |
79072805 | 1791 | break; |
11343788 | 1792 | ref(cLISTOPo->op_last, type); |
79072805 | 1793 | break; |
a0d0e21e LW |
1794 | default: |
1795 | break; | |
79072805 | 1796 | } |
11343788 | 1797 | return scalar(o); |
8990e307 | 1798 | |
79072805 LW |
1799 | } |
1800 | ||
09bef843 SB |
1801 | STATIC OP * |
1802 | S_dup_attrlist(pTHX_ OP *o) | |
1803 | { | |
1804 | OP *rop = Nullop; | |
1805 | ||
1806 | /* An attrlist is either a simple OP_CONST or an OP_LIST with kids, | |
1807 | * where the first kid is OP_PUSHMARK and the remaining ones | |
1808 | * are OP_CONST. We need to push the OP_CONST values. | |
1809 | */ | |
1810 | if (o->op_type == OP_CONST) | |
1811 | rop = newSVOP(OP_CONST, o->op_flags, SvREFCNT_inc(cSVOPo->op_sv)); | |
1812 | else { | |
1813 | assert((o->op_type == OP_LIST) && (o->op_flags & OPf_KIDS)); | |
1814 | for (o = cLISTOPo->op_first; o; o=o->op_sibling) { | |
1815 | if (o->op_type == OP_CONST) | |
1816 | rop = append_elem(OP_LIST, rop, | |
1817 | newSVOP(OP_CONST, o->op_flags, | |
1818 | SvREFCNT_inc(cSVOPo->op_sv))); | |
1819 | } | |
1820 | } | |
1821 | return rop; | |
1822 | } | |
1823 | ||
1824 | STATIC void | |
1825 | S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs) | |
1826 | { | |
09bef843 SB |
1827 | SV *stashsv; |
1828 | ||
1829 | /* fake up C<use attributes $pkg,$rv,@attrs> */ | |
1830 | ENTER; /* need to protect against side-effects of 'use' */ | |
1831 | SAVEINT(PL_expect); | |
1832 | if (stash && HvNAME(stash)) | |
1833 | stashsv = newSVpv(HvNAME(stash), 0); | |
1834 | else | |
1835 | stashsv = &PL_sv_no; | |
e4783991 | 1836 | |
09bef843 | 1837 | #define ATTRSMODULE "attributes" |
e4783991 GS |
1838 | |
1839 | Perl_load_module(aTHX_ PERL_LOADMOD_IMPORT_OPS, | |
1840 | newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1), | |
1841 | Nullsv, | |
1842 | prepend_elem(OP_LIST, | |
1843 | newSVOP(OP_CONST, 0, stashsv), | |
1844 | prepend_elem(OP_LIST, | |
1845 | newSVOP(OP_CONST, 0, | |
1846 | newRV(target)), | |
1847 | dup_attrlist(attrs)))); | |
09bef843 SB |
1848 | LEAVE; |
1849 | } | |
1850 | ||
1851 | STATIC OP * | |
1852 | S_my_kid(pTHX_ OP *o, OP *attrs) | |
93a17b20 LW |
1853 | { |
1854 | OP *kid; | |
93a17b20 LW |
1855 | I32 type; |
1856 | ||
3280af22 | 1857 | if (!o || PL_error_count) |
11343788 | 1858 | return o; |
93a17b20 | 1859 | |
11343788 | 1860 | type = o->op_type; |
93a17b20 | 1861 | if (type == OP_LIST) { |
11343788 | 1862 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
09bef843 | 1863 | my_kid(kid, attrs); |
dab48698 | 1864 | } else if (type == OP_UNDEF) { |
7766148a | 1865 | return o; |
77ca0c92 LW |
1866 | } else if (type == OP_RV2SV || /* "our" declaration */ |
1867 | type == OP_RV2AV || | |
1868 | type == OP_RV2HV) { /* XXX does this let anything illegal in? */ | |
192587c2 | 1869 | o->op_private |= OPpOUR_INTRO; |
77ca0c92 | 1870 | return o; |
dab48698 | 1871 | } else if (type != OP_PADSV && |
93a17b20 LW |
1872 | type != OP_PADAV && |
1873 | type != OP_PADHV && | |
1874 | type != OP_PUSHMARK) | |
1875 | { | |
eb64745e GS |
1876 | yyerror(Perl_form(aTHX_ "Can't declare %s in \"%s\"", |
1877 | PL_op_desc[o->op_type], | |
1878 | PL_in_my == KEY_our ? "our" : "my")); | |
11343788 | 1879 | return o; |
93a17b20 | 1880 | } |
09bef843 SB |
1881 | else if (attrs && type != OP_PUSHMARK) { |
1882 | HV *stash; | |
1883 | SV *padsv; | |
1884 | SV **namesvp; | |
1885 | ||
eb64745e GS |
1886 | PL_in_my = FALSE; |
1887 | PL_in_my_stash = Nullhv; | |
1888 | ||
09bef843 SB |
1889 | /* check for C<my Dog $spot> when deciding package */ |
1890 | namesvp = av_fetch(PL_comppad_name, o->op_targ, FALSE); | |
1891 | if (namesvp && *namesvp && SvOBJECT(*namesvp) && HvNAME(SvSTASH(*namesvp))) | |
1892 | stash = SvSTASH(*namesvp); | |
1893 | else | |
1894 | stash = PL_curstash; | |
1895 | padsv = PAD_SV(o->op_targ); | |
1896 | apply_attrs(stash, padsv, attrs); | |
1897 | } | |
11343788 MB |
1898 | o->op_flags |= OPf_MOD; |
1899 | o->op_private |= OPpLVAL_INTRO; | |
1900 | return o; | |
93a17b20 LW |
1901 | } |
1902 | ||
1903 | OP * | |
09bef843 SB |
1904 | Perl_my_attrs(pTHX_ OP *o, OP *attrs) |
1905 | { | |
1906 | if (o->op_flags & OPf_PARENS) | |
1907 | list(o); | |
09bef843 SB |
1908 | if (attrs) |
1909 | SAVEFREEOP(attrs); | |
eb64745e GS |
1910 | o = my_kid(o, attrs); |
1911 | PL_in_my = FALSE; | |
1912 | PL_in_my_stash = Nullhv; | |
1913 | return o; | |
09bef843 SB |
1914 | } |
1915 | ||
1916 | OP * | |
1917 | Perl_my(pTHX_ OP *o) | |
1918 | { | |
1919 | return my_kid(o, Nullop); | |
1920 | } | |
1921 | ||
1922 | OP * | |
864dbfa3 | 1923 | Perl_sawparens(pTHX_ OP *o) |
79072805 LW |
1924 | { |
1925 | if (o) | |
1926 | o->op_flags |= OPf_PARENS; | |
1927 | return o; | |
1928 | } | |
1929 | ||
1930 | OP * | |
864dbfa3 | 1931 | Perl_bind_match(pTHX_ I32 type, OP *left, OP *right) |
79072805 | 1932 | { |
d008e5eb | 1933 | dTHR; |
11343788 | 1934 | OP *o; |
79072805 | 1935 | |
e476b1b5 | 1936 | if (ckWARN(WARN_MISC) && |
599cee73 PM |
1937 | (left->op_type == OP_RV2AV || |
1938 | left->op_type == OP_RV2HV || | |
1939 | left->op_type == OP_PADAV || | |
1940 | left->op_type == OP_PADHV)) { | |
22c35a8c | 1941 | char *desc = PL_op_desc[(right->op_type == OP_SUBST || |
599cee73 PM |
1942 | right->op_type == OP_TRANS) |
1943 | ? right->op_type : OP_MATCH]; | |
dff6d3cd GS |
1944 | const char *sample = ((left->op_type == OP_RV2AV || |
1945 | left->op_type == OP_PADAV) | |
1946 | ? "@array" : "%hash"); | |
e476b1b5 | 1947 | Perl_warner(aTHX_ WARN_MISC, |
599cee73 PM |
1948 | "Applying %s to %s will act on scalar(%s)", |
1949 | desc, sample, sample); | |
2ae324a7 | 1950 | } |
1951 | ||
79072805 LW |
1952 | if (right->op_type == OP_MATCH || |
1953 | right->op_type == OP_SUBST || | |
1954 | right->op_type == OP_TRANS) { | |
1955 | right->op_flags |= OPf_STACKED; | |
1956 | if (right->op_type != OP_MATCH) | |
463ee0b2 | 1957 | left = mod(left, right->op_type); |
79072805 | 1958 | if (right->op_type == OP_TRANS) |
11343788 | 1959 | o = newBINOP(OP_NULL, OPf_STACKED, scalar(left), right); |
79072805 | 1960 | else |
11343788 | 1961 | o = prepend_elem(right->op_type, scalar(left), right); |
79072805 | 1962 | if (type == OP_NOT) |
11343788 MB |
1963 | return newUNOP(OP_NOT, 0, scalar(o)); |
1964 | return o; | |
79072805 LW |
1965 | } |
1966 | else | |
1967 | return bind_match(type, left, | |
1968 | pmruntime(newPMOP(OP_MATCH, 0), right, Nullop)); | |
1969 | } | |
1970 | ||
1971 | OP * | |
864dbfa3 | 1972 | Perl_invert(pTHX_ OP *o) |
79072805 | 1973 | { |
11343788 MB |
1974 | if (!o) |
1975 | return o; | |
79072805 | 1976 | /* XXX need to optimize away NOT NOT here? Or do we let optimizer do it? */ |
11343788 | 1977 | return newUNOP(OP_NOT, OPf_SPECIAL, scalar(o)); |
79072805 LW |
1978 | } |
1979 | ||
1980 | OP * | |
864dbfa3 | 1981 | Perl_scope(pTHX_ OP *o) |
79072805 LW |
1982 | { |
1983 | if (o) { | |
3280af22 | 1984 | if (o->op_flags & OPf_PARENS || PERLDB_NOOPT || PL_tainting) { |
463ee0b2 LW |
1985 | o = prepend_elem(OP_LINESEQ, newOP(OP_ENTER, 0), o); |
1986 | o->op_type = OP_LEAVE; | |
22c35a8c | 1987 | o->op_ppaddr = PL_ppaddr[OP_LEAVE]; |
463ee0b2 LW |
1988 | } |
1989 | else { | |
1990 | if (o->op_type == OP_LINESEQ) { | |
1991 | OP *kid; | |
1992 | o->op_type = OP_SCOPE; | |
22c35a8c | 1993 | o->op_ppaddr = PL_ppaddr[OP_SCOPE]; |
c3ed7a6a GS |
1994 | kid = ((LISTOP*)o)->op_first; |
1995 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) | |
1996 | null(kid); | |
463ee0b2 LW |
1997 | } |
1998 | else | |
748a9306 | 1999 | o = newLISTOP(OP_SCOPE, 0, o, Nullop); |
463ee0b2 | 2000 | } |
79072805 LW |
2001 | } |
2002 | return o; | |
2003 | } | |
2004 | ||
b3ac6de7 | 2005 | void |
864dbfa3 | 2006 | Perl_save_hints(pTHX) |
b3ac6de7 | 2007 | { |
3280af22 NIS |
2008 | SAVEI32(PL_hints); |
2009 | SAVESPTR(GvHV(PL_hintgv)); | |
2010 | GvHV(PL_hintgv) = newHVhv(GvHV(PL_hintgv)); | |
2011 | SAVEFREESV(GvHV(PL_hintgv)); | |
b3ac6de7 IZ |
2012 | } |
2013 | ||
a0d0e21e | 2014 | int |
864dbfa3 | 2015 | Perl_block_start(pTHX_ int full) |
79072805 | 2016 | { |
11343788 | 2017 | dTHR; |
3280af22 | 2018 | int retval = PL_savestack_ix; |
b3ac6de7 | 2019 | |
3280af22 | 2020 | SAVEI32(PL_comppad_name_floor); |
43d4d5c6 GS |
2021 | PL_comppad_name_floor = AvFILLp(PL_comppad_name); |
2022 | if (full) | |
2023 | PL_comppad_name_fill = PL_comppad_name_floor; | |
2024 | if (PL_comppad_name_floor < 0) | |
2025 | PL_comppad_name_floor = 0; | |
3280af22 NIS |
2026 | SAVEI32(PL_min_intro_pending); |
2027 | SAVEI32(PL_max_intro_pending); | |
2028 | PL_min_intro_pending = 0; | |
2029 | SAVEI32(PL_comppad_name_fill); | |
2030 | SAVEI32(PL_padix_floor); | |
2031 | PL_padix_floor = PL_padix; | |
2032 | PL_pad_reset_pending = FALSE; | |
b3ac6de7 | 2033 | SAVEHINTS(); |
3280af22 | 2034 | PL_hints &= ~HINT_BLOCK_SCOPE; |
7766f137 | 2035 | SAVESPTR(PL_compiling.cop_warnings); |
0453d815 | 2036 | if (! specialWARN(PL_compiling.cop_warnings)) { |
599cee73 PM |
2037 | PL_compiling.cop_warnings = newSVsv(PL_compiling.cop_warnings) ; |
2038 | SAVEFREESV(PL_compiling.cop_warnings) ; | |
2039 | } | |
a0d0e21e LW |
2040 | return retval; |
2041 | } | |
2042 | ||
2043 | OP* | |
864dbfa3 | 2044 | Perl_block_end(pTHX_ I32 floor, OP *seq) |
a0d0e21e | 2045 | { |
11343788 | 2046 | dTHR; |
3280af22 | 2047 | int needblockscope = PL_hints & HINT_BLOCK_SCOPE; |
a0d0e21e | 2048 | OP* retval = scalarseq(seq); |
a0d0e21e | 2049 | LEAVE_SCOPE(floor); |
3280af22 | 2050 | PL_pad_reset_pending = FALSE; |
e24b16f9 | 2051 | PL_compiling.op_private = PL_hints; |
a0d0e21e | 2052 | if (needblockscope) |
3280af22 NIS |
2053 | PL_hints |= HINT_BLOCK_SCOPE; /* propagate out */ |
2054 | pad_leavemy(PL_comppad_name_fill); | |
2055 | PL_cop_seqmax++; | |
a0d0e21e LW |
2056 | return retval; |
2057 | } | |
2058 | ||
76e3520e | 2059 | STATIC OP * |
cea2e8a9 | 2060 | S_newDEFSVOP(pTHX) |
54b9620d MB |
2061 | { |
2062 | #ifdef USE_THREADS | |
2063 | OP *o = newOP(OP_THREADSV, 0); | |
2064 | o->op_targ = find_threadsv("_"); | |
2065 | return o; | |
2066 | #else | |
3280af22 | 2067 | return newSVREF(newGVOP(OP_GV, 0, PL_defgv)); |
54b9620d MB |
2068 | #endif /* USE_THREADS */ |
2069 | } | |
2070 | ||
a0d0e21e | 2071 | void |
864dbfa3 | 2072 | Perl_newPROG(pTHX_ OP *o) |
a0d0e21e | 2073 | { |
11343788 | 2074 | dTHR; |
3280af22 | 2075 | if (PL_in_eval) { |
b295d113 TH |
2076 | if (PL_eval_root) |
2077 | return; | |
faef0170 HS |
2078 | PL_eval_root = newUNOP(OP_LEAVEEVAL, |
2079 | ((PL_in_eval & EVAL_KEEPERR) | |
2080 | ? OPf_SPECIAL : 0), o); | |
3280af22 | 2081 | PL_eval_start = linklist(PL_eval_root); |
7934575e GS |
2082 | PL_eval_root->op_private |= OPpREFCOUNTED; |
2083 | OpREFCNT_set(PL_eval_root, 1); | |
3280af22 NIS |
2084 | PL_eval_root->op_next = 0; |
2085 | peep(PL_eval_start); | |
a0d0e21e LW |
2086 | } |
2087 | else { | |
5dc0d613 | 2088 | if (!o) |
a0d0e21e | 2089 | return; |
3280af22 NIS |
2090 | PL_main_root = scope(sawparens(scalarvoid(o))); |
2091 | PL_curcop = &PL_compiling; | |
2092 | PL_main_start = LINKLIST(PL_main_root); | |
7934575e GS |
2093 | PL_main_root->op_private |= OPpREFCOUNTED; |
2094 | OpREFCNT_set(PL_main_root, 1); | |
3280af22 NIS |
2095 | PL_main_root->op_next = 0; |
2096 | peep(PL_main_start); | |
2097 | PL_compcv = 0; | |
3841441e | 2098 | |
4fdae800 | 2099 | /* Register with debugger */ |
84902520 | 2100 | if (PERLDB_INTER) { |
864dbfa3 | 2101 | CV *cv = get_cv("DB::postponed", FALSE); |
3841441e CS |
2102 | if (cv) { |
2103 | dSP; | |
924508f0 | 2104 | PUSHMARK(SP); |
cc49e20b | 2105 | XPUSHs((SV*)CopFILEGV(&PL_compiling)); |
3841441e | 2106 | PUTBACK; |
864dbfa3 | 2107 | call_sv((SV*)cv, G_DISCARD); |
3841441e CS |
2108 | } |
2109 | } | |
79072805 | 2110 | } |
79072805 LW |
2111 | } |
2112 | ||
2113 | OP * | |
864dbfa3 | 2114 | Perl_localize(pTHX_ OP *o, I32 lex) |
79072805 LW |
2115 | { |
2116 | if (o->op_flags & OPf_PARENS) | |
2117 | list(o); | |
8990e307 | 2118 | else { |
d008e5eb | 2119 | dTHR; |
599cee73 | 2120 | if (ckWARN(WARN_PARENTHESIS) && PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == ',') { |
8990e307 | 2121 | char *s; |
834a4ddd | 2122 | for (s = PL_bufptr; *s && (isALNUM(*s) || (*s & 0x80) || strchr("@$%, ",*s)); s++) ; |
a0d0e21e | 2123 | if (*s == ';' || *s == '=') |
eb64745e GS |
2124 | Perl_warner(aTHX_ WARN_PARENTHESIS, |
2125 | "Parentheses missing around \"%s\" list", | |
2126 | lex ? (PL_in_my == KEY_our ? "our" : "my") : "local"); | |
8990e307 LW |
2127 | } |
2128 | } | |
93a17b20 | 2129 | if (lex) |
eb64745e | 2130 | o = my(o); |
93a17b20 | 2131 | else |
eb64745e GS |
2132 | o = mod(o, OP_NULL); /* a bit kludgey */ |
2133 | PL_in_my = FALSE; | |
2134 | PL_in_my_stash = Nullhv; | |
2135 | return o; | |
79072805 LW |
2136 | } |
2137 | ||
2138 | OP * | |
864dbfa3 | 2139 | Perl_jmaybe(pTHX_ OP *o) |
79072805 LW |
2140 | { |
2141 | if (o->op_type == OP_LIST) { | |
554b3eca MB |
2142 | OP *o2; |
2143 | #ifdef USE_THREADS | |
2faa37cc | 2144 | o2 = newOP(OP_THREADSV, 0); |
54b9620d | 2145 | o2->op_targ = find_threadsv(";"); |
554b3eca MB |
2146 | #else |
2147 | o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))), | |
2148 | #endif /* USE_THREADS */ | |
2149 | o = convert(OP_JOIN, 0, prepend_elem(OP_LIST, o2, o)); | |
79072805 LW |
2150 | } |
2151 | return o; | |
2152 | } | |
2153 | ||
2154 | OP * | |
864dbfa3 | 2155 | Perl_fold_constants(pTHX_ register OP *o) |
79072805 | 2156 | { |
11343788 | 2157 | dTHR; |
79072805 LW |
2158 | register OP *curop; |
2159 | I32 type = o->op_type; | |
748a9306 | 2160 | SV *sv; |
79072805 | 2161 | |
22c35a8c | 2162 | if (PL_opargs[type] & OA_RETSCALAR) |
79072805 | 2163 | scalar(o); |
b162f9ea | 2164 | if (PL_opargs[type] & OA_TARGET && !o->op_targ) |
ed6116ce | 2165 | o->op_targ = pad_alloc(type, SVs_PADTMP); |
79072805 | 2166 | |
eac055e9 GS |
2167 | /* integerize op, unless it happens to be C<-foo>. |
2168 | * XXX should pp_i_negate() do magic string negation instead? */ | |
2169 | if ((PL_opargs[type] & OA_OTHERINT) && (PL_hints & HINT_INTEGER) | |
2170 | && !(type == OP_NEGATE && cUNOPo->op_first->op_type == OP_CONST | |
2171 | && (cUNOPo->op_first->op_private & OPpCONST_BARE))) | |
2172 | { | |
22c35a8c | 2173 | o->op_ppaddr = PL_ppaddr[type = ++(o->op_type)]; |
eac055e9 | 2174 | } |
85e6fe83 | 2175 | |
22c35a8c | 2176 | if (!(PL_opargs[type] & OA_FOLDCONST)) |
79072805 LW |
2177 | goto nope; |
2178 | ||
de939608 | 2179 | switch (type) { |
7a52d87a GS |
2180 | case OP_NEGATE: |
2181 | /* XXX might want a ck_negate() for this */ | |
2182 | cUNOPo->op_first->op_private &= ~OPpCONST_STRICT; | |
2183 | break; | |
de939608 CS |
2184 | case OP_SPRINTF: |
2185 | case OP_UCFIRST: | |
2186 | case OP_LCFIRST: | |
2187 | case OP_UC: | |
2188 | case OP_LC: | |
69dcf70c MB |
2189 | case OP_SLT: |
2190 | case OP_SGT: | |
2191 | case OP_SLE: | |
2192 | case OP_SGE: | |
2193 | case OP_SCMP: | |
2194 | ||
de939608 CS |
2195 | if (o->op_private & OPpLOCALE) |
2196 | goto nope; | |
2197 | } | |
2198 | ||
3280af22 | 2199 | if (PL_error_count) |
a0d0e21e LW |
2200 | goto nope; /* Don't try to run w/ errors */ |
2201 | ||
79072805 | 2202 | for (curop = LINKLIST(o); curop != o; curop = LINKLIST(curop)) { |
11fa937b GS |
2203 | if ((curop->op_type != OP_CONST || |
2204 | (curop->op_private & OPpCONST_BARE)) && | |
7a52d87a GS |
2205 | curop->op_type != OP_LIST && |
2206 | curop->op_type != OP_SCALAR && | |
2207 | curop->op_type != OP_NULL && | |
2208 | curop->op_type != OP_PUSHMARK) | |
2209 | { | |
79072805 LW |
2210 | goto nope; |
2211 | } | |
2212 | } | |
2213 | ||
2214 | curop = LINKLIST(o); | |
2215 | o->op_next = 0; | |
533c011a | 2216 | PL_op = curop; |
cea2e8a9 | 2217 | CALLRUNOPS(aTHX); |
3280af22 | 2218 | sv = *(PL_stack_sp--); |
748a9306 | 2219 | if (o->op_targ && sv == PAD_SV(o->op_targ)) /* grab pad temp? */ |
79072805 | 2220 | pad_swipe(o->op_targ); |
748a9306 LW |
2221 | else if (SvTEMP(sv)) { /* grab mortal temp? */ |
2222 | (void)SvREFCNT_inc(sv); | |
2223 | SvTEMP_off(sv); | |
85e6fe83 | 2224 | } |
79072805 LW |
2225 | op_free(o); |
2226 | if (type == OP_RV2GV) | |
b1cb66bf | 2227 | return newGVOP(OP_GV, 0, (GV*)sv); |
748a9306 | 2228 | else { |
ee580363 GS |
2229 | /* try to smush double to int, but don't smush -2.0 to -2 */ |
2230 | if ((SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK)) == SVf_NOK && | |
2231 | type != OP_NEGATE) | |
2232 | { | |
748a9306 | 2233 | IV iv = SvIV(sv); |
65202027 | 2234 | if ((NV)iv == SvNV(sv)) { |
748a9306 LW |
2235 | SvREFCNT_dec(sv); |
2236 | sv = newSViv(iv); | |
2237 | } | |
b1cb66bf | 2238 | else |
2239 | SvIOK_off(sv); /* undo SvIV() damage */ | |
748a9306 LW |
2240 | } |
2241 | return newSVOP(OP_CONST, 0, sv); | |
2242 | } | |
aeea060c | 2243 | |
79072805 | 2244 | nope: |
22c35a8c | 2245 | if (!(PL_opargs[type] & OA_OTHERINT)) |
79072805 | 2246 | return o; |
79072805 | 2247 | |
3280af22 | 2248 | if (!(PL_hints & HINT_INTEGER)) { |
4bb9f687 GS |
2249 | if (type == OP_MODULO |
2250 | || type == OP_DIVIDE | |
2251 | || !(o->op_flags & OPf_KIDS)) | |
2252 | { | |
85e6fe83 | 2253 | return o; |
4bb9f687 | 2254 | } |
85e6fe83 LW |
2255 | |
2256 | for (curop = ((UNOP*)o)->op_first; curop; curop = curop->op_sibling) { | |
2257 | if (curop->op_type == OP_CONST) { | |
b1cb66bf | 2258 | if (SvIOK(((SVOP*)curop)->op_sv)) |
85e6fe83 LW |
2259 | continue; |
2260 | return o; | |
2261 | } | |
22c35a8c | 2262 | if (PL_opargs[curop->op_type] & OA_RETINTEGER) |
79072805 LW |
2263 | continue; |
2264 | return o; | |
2265 | } | |
22c35a8c | 2266 | o->op_ppaddr = PL_ppaddr[++(o->op_type)]; |
79072805 LW |
2267 | } |
2268 | ||
79072805 LW |
2269 | return o; |
2270 | } | |
2271 | ||
2272 | OP * | |
864dbfa3 | 2273 | Perl_gen_constant_list(pTHX_ register OP *o) |
79072805 | 2274 | { |
11343788 | 2275 | dTHR; |
79072805 | 2276 | register OP *curop; |
3280af22 | 2277 | I32 oldtmps_floor = PL_tmps_floor; |
79072805 | 2278 | |
a0d0e21e | 2279 | list(o); |
3280af22 | 2280 | if (PL_error_count) |
a0d0e21e LW |
2281 | return o; /* Don't attempt to run with errors */ |
2282 | ||
533c011a | 2283 | PL_op = curop = LINKLIST(o); |
a0d0e21e | 2284 | o->op_next = 0; |
7d4045d4 | 2285 | peep(curop); |
cea2e8a9 GS |
2286 | pp_pushmark(); |
2287 | CALLRUNOPS(aTHX); | |
533c011a | 2288 | PL_op = curop; |
cea2e8a9 | 2289 | pp_anonlist(); |
3280af22 | 2290 | PL_tmps_floor = oldtmps_floor; |
79072805 LW |
2291 | |
2292 | o->op_type = OP_RV2AV; | |
22c35a8c | 2293 | o->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
79072805 | 2294 | curop = ((UNOP*)o)->op_first; |
3280af22 | 2295 | ((UNOP*)o)->op_first = newSVOP(OP_CONST, 0, SvREFCNT_inc(*PL_stack_sp--)); |
79072805 | 2296 | op_free(curop); |
79072805 LW |
2297 | linklist(o); |
2298 | return list(o); | |
2299 | } | |
2300 | ||
2301 | OP * | |
864dbfa3 | 2302 | Perl_convert(pTHX_ I32 type, I32 flags, OP *o) |
79072805 LW |
2303 | { |
2304 | OP *kid; | |
a0d0e21e | 2305 | OP *last = 0; |
79072805 | 2306 | |
11343788 MB |
2307 | if (!o || o->op_type != OP_LIST) |
2308 | o = newLISTOP(OP_LIST, 0, o, Nullop); | |
748a9306 | 2309 | else |
5dc0d613 | 2310 | o->op_flags &= ~OPf_WANT; |
79072805 | 2311 | |
22c35a8c | 2312 | if (!(PL_opargs[type] & OA_MARK)) |
11343788 | 2313 | null(cLISTOPo->op_first); |
8990e307 | 2314 | |
11343788 | 2315 | o->op_type = type; |
22c35a8c | 2316 | o->op_ppaddr = PL_ppaddr[type]; |
11343788 | 2317 | o->op_flags |= flags; |
79072805 | 2318 | |
11343788 MB |
2319 | o = CHECKOP(type, o); |
2320 | if (o->op_type != type) | |
2321 | return o; | |
79072805 | 2322 | |
11343788 | 2323 | if (cLISTOPo->op_children < 7) { |
79072805 | 2324 | /* XXX do we really need to do this if we're done appending?? */ |
11343788 | 2325 | for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) |
79072805 | 2326 | last = kid; |
11343788 | 2327 | cLISTOPo->op_last = last; /* in case check substituted last arg */ |
79072805 LW |
2328 | } |
2329 | ||
11343788 | 2330 | return fold_constants(o); |
79072805 LW |
2331 | } |
2332 | ||
2333 | /* List constructors */ | |
2334 | ||
2335 | OP * | |
864dbfa3 | 2336 | Perl_append_elem(pTHX_ I32 type, OP *first, OP *last) |
79072805 LW |
2337 | { |
2338 | if (!first) | |
2339 | return last; | |
8990e307 LW |
2340 | |
2341 | if (!last) | |
79072805 | 2342 | return first; |
8990e307 | 2343 | |
155aba94 GS |
2344 | if (first->op_type != type |
2345 | || (type == OP_LIST && (first->op_flags & OPf_PARENS))) | |
2346 | { | |
2347 | return newLISTOP(type, 0, first, last); | |
2348 | } | |
79072805 | 2349 | |
a0d0e21e LW |
2350 | if (first->op_flags & OPf_KIDS) |
2351 | ((LISTOP*)first)->op_last->op_sibling = last; | |
2352 | else { | |
2353 | first->op_flags |= OPf_KIDS; | |
2354 | ((LISTOP*)first)->op_first = last; | |
2355 | } | |
2356 | ((LISTOP*)first)->op_last = last; | |
2357 | ((LISTOP*)first)->op_children++; | |
2358 | return first; | |
79072805 LW |
2359 | } |
2360 | ||
2361 | OP * | |
864dbfa3 | 2362 | Perl_append_list(pTHX_ I32 type, LISTOP *first, LISTOP *last) |
79072805 LW |
2363 | { |
2364 | if (!first) | |
2365 | return (OP*)last; | |
8990e307 LW |
2366 | |
2367 | if (!last) | |
79072805 | 2368 | return (OP*)first; |
8990e307 LW |
2369 | |
2370 | if (first->op_type != type) | |
79072805 | 2371 | return prepend_elem(type, (OP*)first, (OP*)last); |
8990e307 LW |
2372 | |
2373 | if (last->op_type != type) | |
79072805 LW |
2374 | return append_elem(type, (OP*)first, (OP*)last); |
2375 | ||
2376 | first->op_last->op_sibling = last->op_first; | |
2377 | first->op_last = last->op_last; | |
2378 | first->op_children += last->op_children; | |
2379 | if (first->op_children) | |
acb74605 | 2380 | first->op_flags |= OPf_KIDS; |
b7dc083c NIS |
2381 | |
2382 | #ifdef PL_OP_SLAB_ALLOC | |
2383 | #else | |
2384 | Safefree(last); | |
2385 | #endif | |
79072805 LW |
2386 | return (OP*)first; |
2387 | } | |
2388 | ||
2389 | OP * | |
864dbfa3 | 2390 | Perl_prepend_elem(pTHX_ I32 type, OP *first, OP *last) |
79072805 LW |
2391 | { |
2392 | if (!first) | |
2393 | return last; | |
8990e307 LW |
2394 | |
2395 | if (!last) | |
79072805 | 2396 | return first; |
8990e307 LW |
2397 | |
2398 | if (last->op_type == type) { | |
2399 | if (type == OP_LIST) { /* already a PUSHMARK there */ | |
2400 | first->op_sibling = ((LISTOP*)last)->op_first->op_sibling; | |
2401 | ((LISTOP*)last)->op_first->op_sibling = first; | |
2402 | } | |
2403 | else { | |
2404 | if (!(last->op_flags & OPf_KIDS)) { | |
2405 | ((LISTOP*)last)->op_last = first; | |
2406 | last->op_flags |= OPf_KIDS; | |
2407 | } | |
2408 | first->op_sibling = ((LISTOP*)last)->op_first; | |
2409 | ((LISTOP*)last)->op_first = first; | |
79072805 | 2410 | } |
79072805 LW |
2411 | ((LISTOP*)last)->op_children++; |
2412 | return last; | |
2413 | } | |
2414 | ||
2415 | return newLISTOP(type, 0, first, last); | |
2416 | } | |
2417 | ||
2418 | /* Constructors */ | |
2419 | ||
2420 | OP * | |
864dbfa3 | 2421 | Perl_newNULLLIST(pTHX) |
79072805 | 2422 | { |
8990e307 LW |
2423 | return newOP(OP_STUB, 0); |
2424 | } | |
2425 | ||
2426 | OP * | |
864dbfa3 | 2427 | Perl_force_list(pTHX_ OP *o) |
8990e307 | 2428 | { |
11343788 MB |
2429 | if (!o || o->op_type != OP_LIST) |
2430 | o = newLISTOP(OP_LIST, 0, o, Nullop); | |
2431 | null(o); | |
2432 | return o; | |
79072805 LW |
2433 | } |
2434 | ||
2435 | OP * | |
864dbfa3 | 2436 | Perl_newLISTOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) |
79072805 LW |
2437 | { |
2438 | LISTOP *listop; | |
2439 | ||
b7dc083c | 2440 | NewOp(1101, listop, 1, LISTOP); |
79072805 LW |
2441 | |
2442 | listop->op_type = type; | |
22c35a8c | 2443 | listop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2444 | listop->op_children = (first != 0) + (last != 0); |
2445 | listop->op_flags = flags; | |
79072805 LW |
2446 | |
2447 | if (!last && first) | |
2448 | last = first; | |
2449 | else if (!first && last) | |
2450 | first = last; | |
8990e307 LW |
2451 | else if (first) |
2452 | first->op_sibling = last; | |
79072805 LW |
2453 | listop->op_first = first; |
2454 | listop->op_last = last; | |
8990e307 LW |
2455 | if (type == OP_LIST) { |
2456 | OP* pushop; | |
2457 | pushop = newOP(OP_PUSHMARK, 0); | |
2458 | pushop->op_sibling = first; | |
2459 | listop->op_first = pushop; | |
2460 | listop->op_flags |= OPf_KIDS; | |
2461 | if (!last) | |
2462 | listop->op_last = pushop; | |
2463 | } | |
2464 | else if (listop->op_children) | |
2465 | listop->op_flags |= OPf_KIDS; | |
79072805 LW |
2466 | |
2467 | return (OP*)listop; | |
2468 | } | |
2469 | ||
2470 | OP * | |
864dbfa3 | 2471 | Perl_newOP(pTHX_ I32 type, I32 flags) |
79072805 | 2472 | { |
11343788 | 2473 | OP *o; |
b7dc083c | 2474 | NewOp(1101, o, 1, OP); |
11343788 | 2475 | o->op_type = type; |
22c35a8c | 2476 | o->op_ppaddr = PL_ppaddr[type]; |
11343788 | 2477 | o->op_flags = flags; |
79072805 | 2478 | |
11343788 MB |
2479 | o->op_next = o; |
2480 | o->op_private = 0 + (flags >> 8); | |
22c35a8c | 2481 | if (PL_opargs[type] & OA_RETSCALAR) |
11343788 | 2482 | scalar(o); |
22c35a8c | 2483 | if (PL_opargs[type] & OA_TARGET) |
11343788 MB |
2484 | o->op_targ = pad_alloc(type, SVs_PADTMP); |
2485 | return CHECKOP(type, o); | |
79072805 LW |
2486 | } |
2487 | ||
2488 | OP * | |
864dbfa3 | 2489 | Perl_newUNOP(pTHX_ I32 type, I32 flags, OP *first) |
79072805 LW |
2490 | { |
2491 | UNOP *unop; | |
2492 | ||
93a17b20 | 2493 | if (!first) |
aeea060c | 2494 | first = newOP(OP_STUB, 0); |
22c35a8c | 2495 | if (PL_opargs[type] & OA_MARK) |
8990e307 | 2496 | first = force_list(first); |
93a17b20 | 2497 | |
b7dc083c | 2498 | NewOp(1101, unop, 1, UNOP); |
79072805 | 2499 | unop->op_type = type; |
22c35a8c | 2500 | unop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2501 | unop->op_first = first; |
2502 | unop->op_flags = flags | OPf_KIDS; | |
c07a80fd | 2503 | unop->op_private = 1 | (flags >> 8); |
e50aee73 | 2504 | unop = (UNOP*) CHECKOP(type, unop); |
79072805 LW |
2505 | if (unop->op_next) |
2506 | return (OP*)unop; | |
2507 | ||
a0d0e21e | 2508 | return fold_constants((OP *) unop); |
79072805 LW |
2509 | } |
2510 | ||
2511 | OP * | |
864dbfa3 | 2512 | Perl_newBINOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) |
79072805 LW |
2513 | { |
2514 | BINOP *binop; | |
b7dc083c | 2515 | NewOp(1101, binop, 1, BINOP); |
79072805 LW |
2516 | |
2517 | if (!first) | |
2518 | first = newOP(OP_NULL, 0); | |
2519 | ||
2520 | binop->op_type = type; | |
22c35a8c | 2521 | binop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2522 | binop->op_first = first; |
2523 | binop->op_flags = flags | OPf_KIDS; | |
2524 | if (!last) { | |
2525 | last = first; | |
c07a80fd | 2526 | binop->op_private = 1 | (flags >> 8); |
79072805 LW |
2527 | } |
2528 | else { | |
c07a80fd | 2529 | binop->op_private = 2 | (flags >> 8); |
79072805 LW |
2530 | first->op_sibling = last; |
2531 | } | |
2532 | ||
e50aee73 | 2533 | binop = (BINOP*)CHECKOP(type, binop); |
b162f9ea | 2534 | if (binop->op_next || binop->op_type != type) |
79072805 LW |
2535 | return (OP*)binop; |
2536 | ||
7284ab6f | 2537 | binop->op_last = binop->op_first->op_sibling; |
79072805 | 2538 | |
a0d0e21e | 2539 | return fold_constants((OP *)binop); |
79072805 LW |
2540 | } |
2541 | ||
a0ed51b3 LW |
2542 | static int |
2543 | utf8compare(const void *a, const void *b) | |
2544 | { | |
2545 | int i; | |
2546 | for (i = 0; i < 10; i++) { | |
2547 | if ((*(U8**)a)[i] < (*(U8**)b)[i]) | |
2548 | return -1; | |
2549 | if ((*(U8**)a)[i] > (*(U8**)b)[i]) | |
2550 | return 1; | |
2551 | } | |
2552 | return 0; | |
2553 | } | |
2554 | ||
79072805 | 2555 | OP * |
864dbfa3 | 2556 | Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) |
79072805 | 2557 | { |
79072805 LW |
2558 | SV *tstr = ((SVOP*)expr)->op_sv; |
2559 | SV *rstr = ((SVOP*)repl)->op_sv; | |
463ee0b2 LW |
2560 | STRLEN tlen; |
2561 | STRLEN rlen; | |
ec49126f | 2562 | register U8 *t = (U8*)SvPV(tstr, tlen); |
2563 | register U8 *r = (U8*)SvPV(rstr, rlen); | |
79072805 LW |
2564 | register I32 i; |
2565 | register I32 j; | |
a0ed51b3 | 2566 | I32 del; |
79072805 | 2567 | I32 complement; |
5d06d08e | 2568 | I32 squash; |
79072805 LW |
2569 | register short *tbl; |
2570 | ||
11343788 | 2571 | complement = o->op_private & OPpTRANS_COMPLEMENT; |
a0ed51b3 | 2572 | del = o->op_private & OPpTRANS_DELETE; |
5d06d08e | 2573 | squash = o->op_private & OPpTRANS_SQUASH; |
79072805 | 2574 | |
a0ed51b3 | 2575 | if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { |
79cb57f6 | 2576 | SV* listsv = newSVpvn("# comment\n",10); |
a0ed51b3 LW |
2577 | SV* transv = 0; |
2578 | U8* tend = t + tlen; | |
2579 | U8* rend = r + rlen; | |
2580 | I32 ulen; | |
2581 | U32 tfirst = 1; | |
2582 | U32 tlast = 0; | |
2583 | I32 tdiff; | |
2584 | U32 rfirst = 1; | |
2585 | U32 rlast = 0; | |
2586 | I32 rdiff; | |
2587 | I32 diff; | |
2588 | I32 none = 0; | |
2589 | U32 max = 0; | |
2590 | I32 bits; | |
2591 | I32 grows = 0; | |
2592 | I32 havefinal = 0; | |
2593 | U32 final; | |
a0ed51b3 LW |
2594 | I32 from_utf = o->op_private & OPpTRANS_FROM_UTF; |
2595 | I32 to_utf = o->op_private & OPpTRANS_TO_UTF; | |
2596 | ||
2597 | if (complement) { | |
806e7201 | 2598 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
2599 | U8** cp; |
2600 | UV nextmin = 0; | |
2601 | New(1109, cp, tlen, U8*); | |
2602 | i = 0; | |
79cb57f6 | 2603 | transv = newSVpvn("",0); |
a0ed51b3 LW |
2604 | while (t < tend) { |
2605 | cp[i++] = t; | |
2606 | t += UTF8SKIP(t); | |
2607 | if (*t == 0xff) { | |
2608 | t++; | |
2609 | t += UTF8SKIP(t); | |
2610 | } | |
2611 | } | |
2612 | qsort(cp, i, sizeof(U8*), utf8compare); | |
2613 | for (j = 0; j < i; j++) { | |
2614 | U8 *s = cp[j]; | |
2615 | UV val = utf8_to_uv(s, &ulen); | |
2616 | s += ulen; | |
2617 | diff = val - nextmin; | |
2618 | if (diff > 0) { | |
2619 | t = uv_to_utf8(tmpbuf,nextmin); | |
dfe13c55 | 2620 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2621 | if (diff > 1) { |
2622 | t = uv_to_utf8(tmpbuf, val - 1); | |
2623 | sv_catpvn(transv, "\377", 1); | |
dfe13c55 | 2624 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2625 | } |
2626 | } | |
2627 | if (*s == 0xff) | |
2628 | val = utf8_to_uv(s+1, &ulen); | |
2629 | if (val >= nextmin) | |
2630 | nextmin = val + 1; | |
2631 | } | |
2632 | t = uv_to_utf8(tmpbuf,nextmin); | |
dfe13c55 | 2633 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
a0ed51b3 LW |
2634 | t = uv_to_utf8(tmpbuf, 0x7fffffff); |
2635 | sv_catpvn(transv, "\377", 1); | |
dfe13c55 GS |
2636 | sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf); |
2637 | t = (U8*)SvPVX(transv); | |
a0ed51b3 LW |
2638 | tlen = SvCUR(transv); |
2639 | tend = t + tlen; | |
2640 | } | |
2641 | else if (!rlen && !del) { | |
2642 | r = t; rlen = tlen; rend = tend; | |
4757a243 LW |
2643 | } |
2644 | if (!squash) { | |
2645 | if (to_utf && from_utf) { /* only counting characters */ | |
2646 | if (t == r || (tlen == rlen && memEQ(t, r, tlen))) | |
2647 | o->op_private |= OPpTRANS_IDENTICAL; | |
2648 | } | |
2649 | else { /* straight latin-1 translation */ | |
2650 | if (tlen == 4 && memEQ(t, "\0\377\303\277", 4) && | |
2651 | rlen == 4 && memEQ(r, "\0\377\303\277", 4)) | |
2652 | o->op_private |= OPpTRANS_IDENTICAL; | |
2653 | } | |
a0ed51b3 LW |
2654 | } |
2655 | ||
2656 | while (t < tend || tfirst <= tlast) { | |
2657 | /* see if we need more "t" chars */ | |
2658 | if (tfirst > tlast) { | |
2659 | tfirst = (I32)utf8_to_uv(t, &ulen); | |
2660 | t += ulen; | |
2661 | if (t < tend && *t == 0xff) { /* illegal utf8 val indicates range */ | |
2662 | tlast = (I32)utf8_to_uv(++t, &ulen); | |
2663 | t += ulen; | |
2664 | } | |
2665 | else | |
2666 | tlast = tfirst; | |
2667 | } | |
2668 | ||
2669 | /* now see if we need more "r" chars */ | |
2670 | if (rfirst > rlast) { | |
2671 | if (r < rend) { | |
2672 | rfirst = (I32)utf8_to_uv(r, &ulen); | |
2673 | r += ulen; | |
2674 | if (r < rend && *r == 0xff) { /* illegal utf8 val indicates range */ | |
2675 | rlast = (I32)utf8_to_uv(++r, &ulen); | |
2676 | r += ulen; | |
2677 | } | |
2678 | else | |
2679 | rlast = rfirst; | |
2680 | } | |
2681 | else { | |
2682 | if (!havefinal++) | |
2683 | final = rlast; | |
2684 | rfirst = rlast = 0xffffffff; | |
2685 | } | |
2686 | } | |
2687 | ||
2688 | /* now see which range will peter our first, if either. */ | |
2689 | tdiff = tlast - tfirst; | |
2690 | rdiff = rlast - rfirst; | |
2691 | ||
2692 | if (tdiff <= rdiff) | |
2693 | diff = tdiff; | |
2694 | else | |
2695 | diff = rdiff; | |
2696 | ||
2697 | if (rfirst == 0xffffffff) { | |
2698 | diff = tdiff; /* oops, pretend rdiff is infinite */ | |
2699 | if (diff > 0) | |
894356b3 GS |
2700 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t%04lx\tXXXX\n", |
2701 | (long)tfirst, (long)tlast); | |
a0ed51b3 | 2702 | else |
894356b3 | 2703 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t\tXXXX\n", (long)tfirst); |
a0ed51b3 LW |
2704 | } |
2705 | else { | |
2706 | if (diff > 0) | |
894356b3 GS |
2707 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t%04lx\t%04lx\n", |
2708 | (long)tfirst, (long)(tfirst + diff), | |
2709 | (long)rfirst); | |
a0ed51b3 | 2710 | else |
894356b3 GS |
2711 | Perl_sv_catpvf(aTHX_ listsv, "%04lx\t\t%04lx\n", |
2712 | (long)tfirst, (long)rfirst); | |
a0ed51b3 LW |
2713 | |
2714 | if (rfirst + diff > max) | |
2715 | max = rfirst + diff; | |
2716 | rfirst += diff + 1; | |
2717 | if (!grows) { | |
2718 | if (rfirst <= 0x80) | |
2719 | ; | |
2720 | else if (rfirst <= 0x800) | |
2721 | grows |= (tfirst < 0x80); | |
2722 | else if (rfirst <= 0x10000) | |
2723 | grows |= (tfirst < 0x800); | |
2724 | else if (rfirst <= 0x200000) | |
2725 | grows |= (tfirst < 0x10000); | |
2726 | else if (rfirst <= 0x4000000) | |
2727 | grows |= (tfirst < 0x200000); | |
2728 | else if (rfirst <= 0x80000000) | |
2729 | grows |= (tfirst < 0x4000000); | |
2730 | } | |
2731 | } | |
2732 | tfirst += diff + 1; | |
2733 | } | |
2734 | ||
2735 | none = ++max; | |
2736 | if (del) | |
2737 | del = ++max; | |
2738 | ||
2739 | if (max > 0xffff) | |
2740 | bits = 32; | |
2741 | else if (max > 0xff) | |
2742 | bits = 16; | |
2743 | else | |
2744 | bits = 8; | |
2745 | ||
2746 | cSVOPo->op_sv = (SV*)swash_init("utf8", "", listsv, bits, none); | |
2747 | SvREFCNT_dec(listsv); | |
2748 | if (transv) | |
2749 | SvREFCNT_dec(transv); | |
2750 | ||
2751 | if (!del && havefinal) | |
b448e4fe JH |
2752 | (void)hv_store((HV*)SvRV((cSVOPo->op_sv)), "FINAL", 5, |
2753 | newSVuv((UV)final), 0); | |
a0ed51b3 LW |
2754 | |
2755 | if (grows && to_utf) | |
2756 | o->op_private |= OPpTRANS_GROWS; | |
2757 | ||
2758 | op_free(expr); | |
2759 | op_free(repl); | |
2760 | return o; | |
2761 | } | |
2762 | ||
2763 | tbl = (short*)cPVOPo->op_pv; | |
79072805 LW |
2764 | if (complement) { |
2765 | Zero(tbl, 256, short); | |
2766 | for (i = 0; i < tlen; i++) | |
ec49126f | 2767 | tbl[t[i]] = -1; |
79072805 LW |
2768 | for (i = 0, j = 0; i < 256; i++) { |
2769 | if (!tbl[i]) { | |
2770 | if (j >= rlen) { | |
a0ed51b3 | 2771 | if (del) |
79072805 LW |
2772 | tbl[i] = -2; |
2773 | else if (rlen) | |
ec49126f | 2774 | tbl[i] = r[j-1]; |
79072805 LW |
2775 | else |
2776 | tbl[i] = i; | |
2777 | } | |
2778 | else | |
ec49126f | 2779 | tbl[i] = r[j++]; |
79072805 LW |
2780 | } |
2781 | } | |
2782 | } | |
2783 | else { | |
a0ed51b3 | 2784 | if (!rlen && !del) { |
79072805 | 2785 | r = t; rlen = tlen; |
5d06d08e | 2786 | if (!squash) |
4757a243 | 2787 | o->op_private |= OPpTRANS_IDENTICAL; |
79072805 LW |
2788 | } |
2789 | for (i = 0; i < 256; i++) | |
2790 | tbl[i] = -1; | |
2791 | for (i = 0, j = 0; i < tlen; i++,j++) { | |
2792 | if (j >= rlen) { | |
a0ed51b3 | 2793 | if (del) { |
ec49126f | 2794 | if (tbl[t[i]] == -1) |
2795 | tbl[t[i]] = -2; | |
79072805 LW |
2796 | continue; |
2797 | } | |
2798 | --j; | |
2799 | } | |
ec49126f | 2800 | if (tbl[t[i]] == -1) |
2801 | tbl[t[i]] = r[j]; | |
79072805 LW |
2802 | } |
2803 | } | |
2804 | op_free(expr); | |
2805 | op_free(repl); | |
2806 | ||
11343788 | 2807 | return o; |
79072805 LW |
2808 | } |
2809 | ||
2810 | OP * | |
864dbfa3 | 2811 | Perl_newPMOP(pTHX_ I32 type, I32 flags) |
79072805 | 2812 | { |
11343788 | 2813 | dTHR; |
79072805 LW |
2814 | PMOP *pmop; |
2815 | ||
b7dc083c | 2816 | NewOp(1101, pmop, 1, PMOP); |
79072805 | 2817 | pmop->op_type = type; |
22c35a8c | 2818 | pmop->op_ppaddr = PL_ppaddr[type]; |
79072805 | 2819 | pmop->op_flags = flags; |
c07a80fd | 2820 | pmop->op_private = 0 | (flags >> 8); |
79072805 | 2821 | |
3280af22 | 2822 | if (PL_hints & HINT_RE_TAINT) |
b3eb6a9b | 2823 | pmop->op_pmpermflags |= PMf_RETAINT; |
3280af22 | 2824 | if (PL_hints & HINT_LOCALE) |
b3eb6a9b GS |
2825 | pmop->op_pmpermflags |= PMf_LOCALE; |
2826 | pmop->op_pmflags = pmop->op_pmpermflags; | |
36477c24 | 2827 | |
79072805 | 2828 | /* link into pm list */ |
3280af22 NIS |
2829 | if (type != OP_TRANS && PL_curstash) { |
2830 | pmop->op_pmnext = HvPMROOT(PL_curstash); | |
2831 | HvPMROOT(PL_curstash) = pmop; | |
79072805 LW |
2832 | } |
2833 | ||
2834 | return (OP*)pmop; | |
2835 | } | |
2836 | ||
2837 | OP * | |
864dbfa3 | 2838 | Perl_pmruntime(pTHX_ OP *o, OP *expr, OP *repl) |
79072805 | 2839 | { |
5c0ca799 | 2840 | dTHR; |
79072805 LW |
2841 | PMOP *pm; |
2842 | LOGOP *rcop; | |
ce862d02 | 2843 | I32 repl_has_vars = 0; |
79072805 | 2844 | |
11343788 MB |
2845 | if (o->op_type == OP_TRANS) |
2846 | return pmtrans(o, expr, repl); | |
79072805 | 2847 | |
3280af22 | 2848 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 | 2849 | pm = (PMOP*)o; |
79072805 LW |
2850 | |
2851 | if (expr->op_type == OP_CONST) { | |
463ee0b2 | 2852 | STRLEN plen; |
79072805 | 2853 | SV *pat = ((SVOP*)expr)->op_sv; |
463ee0b2 | 2854 | char *p = SvPV(pat, plen); |
11343788 | 2855 | if ((o->op_flags & OPf_SPECIAL) && strEQ(p, " ")) { |
93a17b20 | 2856 | sv_setpvn(pat, "\\s+", 3); |
463ee0b2 | 2857 | p = SvPV(pat, plen); |
79072805 LW |
2858 | pm->op_pmflags |= PMf_SKIPWHITE; |
2859 | } | |
393fec97 | 2860 | if ((PL_hints & HINT_UTF8) || (SvUTF8(pat) && !(PL_hints & HINT_BYTE))) |
7e2040f0 | 2861 | pm->op_pmdynflags |= PMdf_UTF8; |
cea2e8a9 | 2862 | pm->op_pmregexp = CALLREGCOMP(aTHX_ p, p + plen, pm); |
aeea060c | 2863 | if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
85e6fe83 | 2864 | pm->op_pmflags |= PMf_WHITE; |
79072805 LW |
2865 | op_free(expr); |
2866 | } | |
2867 | else { | |
393fec97 GS |
2868 | if (PL_hints & HINT_UTF8) |
2869 | pm->op_pmdynflags |= PMdf_UTF8; | |
3280af22 NIS |
2870 | if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) |
2871 | expr = newUNOP((!(PL_hints & HINT_RE_EVAL) | |
2cd61cdb IZ |
2872 | ? OP_REGCRESET |
2873 | : OP_REGCMAYBE),0,expr); | |
463ee0b2 | 2874 | |
b7dc083c | 2875 | NewOp(1101, rcop, 1, LOGOP); |
79072805 | 2876 | rcop->op_type = OP_REGCOMP; |
22c35a8c | 2877 | rcop->op_ppaddr = PL_ppaddr[OP_REGCOMP]; |
79072805 | 2878 | rcop->op_first = scalar(expr); |
3280af22 | 2879 | rcop->op_flags |= ((PL_hints & HINT_RE_EVAL) |
2cd61cdb IZ |
2880 | ? (OPf_SPECIAL | OPf_KIDS) |
2881 | : OPf_KIDS); | |
79072805 | 2882 | rcop->op_private = 1; |
11343788 | 2883 | rcop->op_other = o; |
79072805 LW |
2884 | |
2885 | /* establish postfix order */ | |
3280af22 | 2886 | if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) { |
463ee0b2 LW |
2887 | LINKLIST(expr); |
2888 | rcop->op_next = expr; | |
2889 | ((UNOP*)expr)->op_first->op_next = (OP*)rcop; | |
2890 | } | |
2891 | else { | |
2892 | rcop->op_next = LINKLIST(expr); | |
2893 | expr->op_next = (OP*)rcop; | |
2894 | } | |
79072805 | 2895 | |
11343788 | 2896 | prepend_elem(o->op_type, scalar((OP*)rcop), o); |
79072805 LW |
2897 | } |
2898 | ||
2899 | if (repl) { | |
748a9306 | 2900 | OP *curop; |
0244c3a4 | 2901 | if (pm->op_pmflags & PMf_EVAL) { |
748a9306 | 2902 | curop = 0; |
57843af0 GS |
2903 | if (CopLINE(PL_curcop) < PL_multi_end) |
2904 | CopLINE_set(PL_curcop, PL_multi_end); | |
0244c3a4 | 2905 | } |
554b3eca | 2906 | #ifdef USE_THREADS |
2faa37cc | 2907 | else if (repl->op_type == OP_THREADSV |
554b3eca | 2908 | && strchr("&`'123456789+", |
533c011a | 2909 | PL_threadsv_names[repl->op_targ])) |
554b3eca MB |
2910 | { |
2911 | curop = 0; | |
2912 | } | |
2913 | #endif /* USE_THREADS */ | |
748a9306 LW |
2914 | else if (repl->op_type == OP_CONST) |
2915 | curop = repl; | |
79072805 | 2916 | else { |
79072805 LW |
2917 | OP *lastop = 0; |
2918 | for (curop = LINKLIST(repl); curop!=repl; curop = LINKLIST(curop)) { | |
22c35a8c | 2919 | if (PL_opargs[curop->op_type] & OA_DANGEROUS) { |
554b3eca | 2920 | #ifdef USE_THREADS |
ce862d02 IZ |
2921 | if (curop->op_type == OP_THREADSV) { |
2922 | repl_has_vars = 1; | |
be949f6f | 2923 | if (strchr("&`'123456789+", curop->op_private)) |
ce862d02 | 2924 | break; |
554b3eca MB |
2925 | } |
2926 | #else | |
79072805 | 2927 | if (curop->op_type == OP_GV) { |
638eceb6 | 2928 | GV *gv = cGVOPx_gv(curop); |
ce862d02 | 2929 | repl_has_vars = 1; |
93a17b20 | 2930 | if (strchr("&`'123456789+", *GvENAME(gv))) |
79072805 LW |
2931 | break; |
2932 | } | |
554b3eca | 2933 | #endif /* USE_THREADS */ |
79072805 LW |
2934 | else if (curop->op_type == OP_RV2CV) |
2935 | break; | |
2936 | else if (curop->op_type == OP_RV2SV || | |
2937 | curop->op_type == OP_RV2AV || | |
2938 | curop->op_type == OP_RV2HV || | |
2939 | curop->op_type == OP_RV2GV) { | |
2940 | if (lastop && lastop->op_type != OP_GV) /*funny deref?*/ | |
2941 | break; | |
2942 | } | |
748a9306 LW |
2943 | else if (curop->op_type == OP_PADSV || |
2944 | curop->op_type == OP_PADAV || | |
2945 | curop->op_type == OP_PADHV || | |
554b3eca | 2946 | curop->op_type == OP_PADANY) { |
ce862d02 | 2947 | repl_has_vars = 1; |
748a9306 | 2948 | } |
1167e5da SM |
2949 | else if (curop->op_type == OP_PUSHRE) |
2950 | ; /* Okay here, dangerous in newASSIGNOP */ | |
79072805 LW |
2951 | else |
2952 | break; | |
2953 | } | |
2954 | lastop = curop; | |
2955 | } | |
748a9306 | 2956 | } |
ce862d02 IZ |
2957 | if (curop == repl |
2958 | && !(repl_has_vars | |
2959 | && (!pm->op_pmregexp | |
2960 | || pm->op_pmregexp->reganch & ROPT_EVAL_SEEN))) { | |
748a9306 | 2961 | pm->op_pmflags |= PMf_CONST; /* const for long enough */ |
4633a7c4 | 2962 | pm->op_pmpermflags |= PMf_CONST; /* const for long enough */ |
11343788 | 2963 | prepend_elem(o->op_type, scalar(repl), o); |
748a9306 LW |
2964 | } |
2965 | else { | |
ce862d02 IZ |
2966 | if (curop == repl && !pm->op_pmregexp) { /* Has variables. */ |
2967 | pm->op_pmflags |= PMf_MAYBE_CONST; | |
2968 | pm->op_pmpermflags |= PMf_MAYBE_CONST; | |
2969 | } | |
b7dc083c | 2970 | NewOp(1101, rcop, 1, LOGOP); |
748a9306 | 2971 | rcop->op_type = OP_SUBSTCONT; |
22c35a8c | 2972 | rcop->op_ppaddr = PL_ppaddr[OP_SUBSTCONT]; |
748a9306 LW |
2973 | rcop->op_first = scalar(repl); |
2974 | rcop->op_flags |= OPf_KIDS; | |
2975 | rcop->op_private = 1; | |
11343788 | 2976 | rcop->op_other = o; |
748a9306 LW |
2977 | |
2978 | /* establish postfix order */ | |
2979 | rcop->op_next = LINKLIST(repl); | |
2980 | repl->op_next = (OP*)rcop; | |
2981 | ||
2982 | pm->op_pmreplroot = scalar((OP*)rcop); | |
2983 | pm->op_pmreplstart = LINKLIST(rcop); | |
2984 | rcop->op_next = 0; | |
79072805 LW |
2985 | } |
2986 | } | |
2987 | ||
2988 | return (OP*)pm; | |
2989 | } | |
2990 | ||
2991 | OP * | |
864dbfa3 | 2992 | Perl_newSVOP(pTHX_ I32 type, I32 flags, SV *sv) |
79072805 LW |
2993 | { |
2994 | SVOP *svop; | |
b7dc083c | 2995 | NewOp(1101, svop, 1, SVOP); |
79072805 | 2996 | svop->op_type = type; |
22c35a8c | 2997 | svop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
2998 | svop->op_sv = sv; |
2999 | svop->op_next = (OP*)svop; | |
3000 | svop->op_flags = flags; | |
22c35a8c | 3001 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 3002 | scalar((OP*)svop); |
22c35a8c | 3003 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 3004 | svop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 3005 | return CHECKOP(type, svop); |
79072805 LW |
3006 | } |
3007 | ||
3008 | OP * | |
350de78d GS |
3009 | Perl_newPADOP(pTHX_ I32 type, I32 flags, SV *sv) |
3010 | { | |
3011 | PADOP *padop; | |
3012 | NewOp(1101, padop, 1, PADOP); | |
3013 | padop->op_type = type; | |
3014 | padop->op_ppaddr = PL_ppaddr[type]; | |
3015 | padop->op_padix = pad_alloc(type, SVs_PADTMP); | |
7766f137 | 3016 | SvREFCNT_dec(PL_curpad[padop->op_padix]); |
350de78d | 3017 | PL_curpad[padop->op_padix] = sv; |
7766f137 | 3018 | SvPADTMP_on(sv); |
350de78d GS |
3019 | padop->op_next = (OP*)padop; |
3020 | padop->op_flags = flags; | |
3021 | if (PL_opargs[type] & OA_RETSCALAR) | |
3022 | scalar((OP*)padop); | |
3023 | if (PL_opargs[type] & OA_TARGET) | |
3024 | padop->op_targ = pad_alloc(type, SVs_PADTMP); | |
3025 | return CHECKOP(type, padop); | |
3026 | } | |
3027 | ||
3028 | OP * | |
864dbfa3 | 3029 | Perl_newGVOP(pTHX_ I32 type, I32 flags, GV *gv) |
79072805 | 3030 | { |
11343788 | 3031 | dTHR; |
350de78d | 3032 | #ifdef USE_ITHREADS |
743e66e6 | 3033 | GvIN_PAD_on(gv); |
350de78d GS |
3034 | return newPADOP(type, flags, SvREFCNT_inc(gv)); |
3035 | #else | |
7934575e | 3036 | return newSVOP(type, flags, SvREFCNT_inc(gv)); |
350de78d | 3037 | #endif |
79072805 LW |
3038 | } |
3039 | ||
3040 | OP * | |
864dbfa3 | 3041 | Perl_newPVOP(pTHX_ I32 type, I32 flags, char *pv) |
79072805 LW |
3042 | { |
3043 | PVOP *pvop; | |
b7dc083c | 3044 | NewOp(1101, pvop, 1, PVOP); |
79072805 | 3045 | pvop->op_type = type; |
22c35a8c | 3046 | pvop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
3047 | pvop->op_pv = pv; |
3048 | pvop->op_next = (OP*)pvop; | |
3049 | pvop->op_flags = flags; | |
22c35a8c | 3050 | if (PL_opargs[type] & OA_RETSCALAR) |
463ee0b2 | 3051 | scalar((OP*)pvop); |
22c35a8c | 3052 | if (PL_opargs[type] & OA_TARGET) |
ed6116ce | 3053 | pvop->op_targ = pad_alloc(type, SVs_PADTMP); |
e50aee73 | 3054 | return CHECKOP(type, pvop); |
79072805 LW |
3055 | } |
3056 | ||
79072805 | 3057 | void |
864dbfa3 | 3058 | Perl_package(pTHX_ OP *o) |
79072805 | 3059 | { |
11343788 | 3060 | dTHR; |
93a17b20 | 3061 | SV *sv; |
79072805 | 3062 | |
3280af22 NIS |
3063 | save_hptr(&PL_curstash); |
3064 | save_item(PL_curstname); | |
11343788 | 3065 | if (o) { |
463ee0b2 LW |
3066 | STRLEN len; |
3067 | char *name; | |
11343788 | 3068 | sv = cSVOPo->op_sv; |
463ee0b2 | 3069 | name = SvPV(sv, len); |
3280af22 NIS |
3070 | PL_curstash = gv_stashpvn(name,len,TRUE); |
3071 | sv_setpvn(PL_curstname, name, len); | |
11343788 | 3072 | op_free(o); |
93a17b20 LW |
3073 | } |
3074 | else { | |
3280af22 NIS |
3075 | sv_setpv(PL_curstname,"<none>"); |
3076 | PL_curstash = Nullhv; | |
93a17b20 | 3077 | } |
7ad382f4 | 3078 | PL_hints |= HINT_BLOCK_SCOPE; |
3280af22 NIS |
3079 | PL_copline = NOLINE; |
3080 | PL_expect = XSTATE; | |
79072805 LW |
3081 | } |
3082 | ||
85e6fe83 | 3083 | void |
864dbfa3 | 3084 | Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *id, OP *arg) |
85e6fe83 | 3085 | { |
a0d0e21e | 3086 | OP *pack; |
a0d0e21e LW |
3087 | OP *rqop; |
3088 | OP *imop; | |
b1cb66bf | 3089 | OP *veop; |
78ca652e | 3090 | GV *gv; |
85e6fe83 | 3091 | |
a0d0e21e | 3092 | if (id->op_type != OP_CONST) |
cea2e8a9 | 3093 | Perl_croak(aTHX_ "Module name must be constant"); |
85e6fe83 | 3094 | |
b1cb66bf | 3095 | veop = Nullop; |
3096 | ||
0f79a09d | 3097 | if (version != Nullop) { |
b1cb66bf | 3098 | SV *vesv = ((SVOP*)version)->op_sv; |
3099 | ||
44dcb63b | 3100 | if (arg == Nullop && !SvNIOKp(vesv)) { |
b1cb66bf | 3101 | arg = version; |
3102 | } | |
3103 | else { | |
3104 | OP *pack; | |
0f79a09d | 3105 | SV *meth; |
b1cb66bf | 3106 | |
44dcb63b | 3107 | if (version->op_type != OP_CONST || !SvNIOKp(vesv)) |
cea2e8a9 | 3108 | Perl_croak(aTHX_ "Version number must be constant number"); |
b1cb66bf | 3109 | |
3110 | /* Make copy of id so we don't free it twice */ | |
3111 | pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv)); | |
3112 | ||
3113 | /* Fake up a method call to VERSION */ | |
0f79a09d GS |
3114 | meth = newSVpvn("VERSION",7); |
3115 | sv_upgrade(meth, SVt_PVIV); | |
155aba94 | 3116 | (void)SvIOK_on(meth); |
0f79a09d | 3117 | PERL_HASH(SvUVX(meth), SvPVX(meth), SvCUR(meth)); |
b1cb66bf | 3118 | veop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, |
3119 | append_elem(OP_LIST, | |
0f79a09d GS |
3120 | prepend_elem(OP_LIST, pack, list(version)), |
3121 | newSVOP(OP_METHOD_NAMED, 0, meth))); | |
b1cb66bf | 3122 | } |
3123 | } | |
aeea060c | 3124 | |
a0d0e21e | 3125 | /* Fake up an import/unimport */ |
4633a7c4 LW |
3126 | if (arg && arg->op_type == OP_STUB) |
3127 | imop = arg; /* no import on explicit () */ | |
44dcb63b | 3128 | else if (SvNIOKp(((SVOP*)id)->op_sv)) { |
b1cb66bf | 3129 | imop = Nullop; /* use 5.0; */ |
3130 | } | |
4633a7c4 | 3131 | else { |
0f79a09d GS |
3132 | SV *meth; |
3133 | ||
4633a7c4 LW |
3134 | /* Make copy of id so we don't free it twice */ |
3135 | pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv)); | |
0f79a09d GS |
3136 | |
3137 | /* Fake up a method call to import/unimport */ | |
3138 | meth = aver ? newSVpvn("import",6) : newSVpvn("unimport", 8);; | |
3139 | sv_upgrade(meth, SVt_PVIV); | |
155aba94 | 3140 | (void)SvIOK_on(meth); |
0f79a09d | 3141 | PERL_HASH(SvUVX(meth), SvPVX(meth), SvCUR(meth)); |
4633a7c4 | 3142 | imop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, |
0f79a09d GS |
3143 | append_elem(OP_LIST, |
3144 | prepend_elem(OP_LIST, pack, list(arg)), | |
3145 | newSVOP(OP_METHOD_NAMED, 0, meth))); | |
4633a7c4 LW |
3146 | } |
3147 | ||
78ca652e GS |
3148 | /* Fake up a require, handle override, if any */ |
3149 | gv = gv_fetchpv("require", FALSE, SVt_PVCV); | |
3150 | if (!(gv && GvIMPORTED_CV(gv))) | |
3151 | gv = gv_fetchpv("CORE::GLOBAL::require", FALSE, SVt_PVCV); | |
3152 | ||
3153 | if (gv && GvIMPORTED_CV(gv)) { | |
3154 | rqop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3155 | append_elem(OP_LIST, id, | |
3156 | scalar(newUNOP(OP_RV2CV, 0, | |
3157 | newGVOP(OP_GV, 0, | |
3158 | gv)))))); | |
3159 | } | |
3160 | else { | |
3161 | rqop = newUNOP(OP_REQUIRE, 0, id); | |
3162 | } | |
a0d0e21e LW |
3163 | |
3164 | /* Fake up the BEGIN {}, which does its thing immediately. */ | |
09bef843 | 3165 | newATTRSUB(floor, |
79cb57f6 | 3166 | newSVOP(OP_CONST, 0, newSVpvn("BEGIN", 5)), |
4633a7c4 | 3167 | Nullop, |
09bef843 | 3168 | Nullop, |
a0d0e21e | 3169 | append_elem(OP_LINESEQ, |
b1cb66bf | 3170 | append_elem(OP_LINESEQ, |
3171 | newSTATEOP(0, Nullch, rqop), | |
3172 | newSTATEOP(0, Nullch, veop)), | |
a0d0e21e | 3173 | newSTATEOP(0, Nullch, imop) )); |
85e6fe83 | 3174 | |
c305c6a0 | 3175 | PL_hints |= HINT_BLOCK_SCOPE; |
3280af22 NIS |
3176 | PL_copline = NOLINE; |
3177 | PL_expect = XSTATE; | |
85e6fe83 LW |
3178 | } |
3179 | ||
e4783991 GS |
3180 | void |
3181 | Perl_load_module(pTHX_ U32 flags, SV *name, SV *ver, ...) | |
3182 | { | |
3183 | va_list args; | |
3184 | va_start(args, ver); | |
3185 | vload_module(flags, name, ver, &args); | |
3186 | va_end(args); | |
3187 | } | |
3188 | ||
3189 | #ifdef PERL_IMPLICIT_CONTEXT | |
3190 | void | |
3191 | Perl_load_module_nocontext(U32 flags, SV *name, SV *ver, ...) | |
3192 | { | |
3193 | dTHX; | |
3194 | va_list args; | |
3195 | va_start(args, ver); | |
3196 | vload_module(flags, name, ver, &args); | |
3197 | va_end(args); | |
3198 | } | |
3199 | #endif | |
3200 | ||
3201 | void | |
3202 | Perl_vload_module(pTHX_ U32 flags, SV *name, SV *ver, va_list *args) | |
3203 | { | |
3204 | OP *modname, *veop, *imop; | |
3205 | ||
3206 | modname = newSVOP(OP_CONST, 0, name); | |
3207 | modname->op_private |= OPpCONST_BARE; | |
3208 | if (ver) { | |
3209 | veop = newSVOP(OP_CONST, 0, ver); | |
3210 | } | |
3211 | else | |
3212 | veop = Nullop; | |
3213 | if (flags & PERL_LOADMOD_NOIMPORT) { | |
3214 | imop = sawparens(newNULLLIST()); | |
3215 | } | |
3216 | else if (flags & PERL_LOADMOD_IMPORT_OPS) { | |
3217 | imop = va_arg(*args, OP*); | |
3218 | } | |
3219 | else { | |
3220 | SV *sv; | |
3221 | imop = Nullop; | |
3222 | sv = va_arg(*args, SV*); | |
3223 | while (sv) { | |
3224 | imop = append_elem(OP_LIST, imop, newSVOP(OP_CONST, 0, sv)); | |
3225 | sv = va_arg(*args, SV*); | |
3226 | } | |
3227 | } | |
81885997 GS |
3228 | { |
3229 | line_t ocopline = PL_copline; | |
3230 | int oexpect = PL_expect; | |
3231 | ||
3232 | utilize(!(flags & PERL_LOADMOD_DENY), start_subparse(FALSE, 0), | |
3233 | veop, modname, imop); | |
3234 | PL_expect = oexpect; | |
3235 | PL_copline = ocopline; | |
3236 | } | |
e4783991 GS |
3237 | } |
3238 | ||
79072805 | 3239 | OP * |
864dbfa3 | 3240 | Perl_dofile(pTHX_ OP *term) |
78ca652e GS |
3241 | { |
3242 | OP *doop; | |
3243 | GV *gv; | |
3244 | ||
3245 | gv = gv_fetchpv("do", FALSE, SVt_PVCV); | |
3246 | if (!(gv && GvIMPORTED_CV(gv))) | |
3247 | gv = gv_fetchpv("CORE::GLOBAL::do", FALSE, SVt_PVCV); | |
3248 | ||
3249 | if (gv && GvIMPORTED_CV(gv)) { | |
3250 | doop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3251 | append_elem(OP_LIST, term, | |
3252 | scalar(newUNOP(OP_RV2CV, 0, | |
3253 | newGVOP(OP_GV, 0, | |
3254 | gv)))))); | |
3255 | } | |
3256 | else { | |
3257 | doop = newUNOP(OP_DOFILE, 0, scalar(term)); | |
3258 | } | |
3259 | return doop; | |
3260 | } | |
3261 | ||
3262 | OP * | |
864dbfa3 | 3263 | Perl_newSLICEOP(pTHX_ I32 flags, OP *subscript, OP *listval) |
79072805 LW |
3264 | { |
3265 | return newBINOP(OP_LSLICE, flags, | |
8990e307 LW |
3266 | list(force_list(subscript)), |
3267 | list(force_list(listval)) ); | |
79072805 LW |
3268 | } |
3269 | ||
76e3520e | 3270 | STATIC I32 |
cea2e8a9 | 3271 | S_list_assignment(pTHX_ register OP *o) |
79072805 | 3272 | { |
11343788 | 3273 | if (!o) |
79072805 LW |
3274 | return TRUE; |
3275 | ||
11343788 MB |
3276 | if (o->op_type == OP_NULL && o->op_flags & OPf_KIDS) |
3277 | o = cUNOPo->op_first; | |
79072805 | 3278 | |
11343788 | 3279 | if (o->op_type == OP_COND_EXPR) { |
1a67a97c SM |
3280 | I32 t = list_assignment(cLOGOPo->op_first->op_sibling); |
3281 | I32 f = list_assignment(cLOGOPo->op_first->op_sibling->op_sibling); | |
79072805 LW |
3282 | |
3283 | if (t && f) | |
3284 | return TRUE; | |
3285 | if (t || f) | |
3286 | yyerror("Assignment to both a list and a scalar"); | |
3287 | return FALSE; | |
3288 | } | |
3289 | ||
11343788 MB |
3290 | if (o->op_type == OP_LIST || o->op_flags & OPf_PARENS || |
3291 | o->op_type == OP_RV2AV || o->op_type == OP_RV2HV || | |
3292 | o->op_type == OP_ASLICE || o->op_type == OP_HSLICE) | |
79072805 LW |
3293 | return TRUE; |
3294 | ||
11343788 | 3295 | if (o->op_type == OP_PADAV || o->op_type == OP_PADHV) |
93a17b20 LW |
3296 | return TRUE; |
3297 | ||
11343788 | 3298 | if (o->op_type == OP_RV2SV) |
79072805 LW |
3299 | return FALSE; |
3300 | ||
3301 | return FALSE; | |
3302 | } | |
3303 | ||
3304 | OP * | |
864dbfa3 | 3305 | Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) |
79072805 | 3306 | { |
11343788 | 3307 | OP *o; |
79072805 | 3308 | |
a0d0e21e LW |
3309 | if (optype) { |
3310 | if (optype == OP_ANDASSIGN || optype == OP_ORASSIGN) { | |
3311 | return newLOGOP(optype, 0, | |
3312 | mod(scalar(left), optype), | |
3313 | newUNOP(OP_SASSIGN, 0, scalar(right))); | |
3314 | } | |
3315 | else { | |
3316 | return newBINOP(optype, OPf_STACKED, | |
3317 | mod(scalar(left), optype), scalar(right)); | |
3318 | } | |
3319 | } | |
3320 | ||
79072805 | 3321 | if (list_assignment(left)) { |
6ee623d5 | 3322 | dTHR; |
10c8fecd GS |
3323 | OP *curop; |
3324 | ||
3280af22 NIS |
3325 | PL_modcount = 0; |
3326 | PL_eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/ | |
463ee0b2 | 3327 | left = mod(left, OP_AASSIGN); |
3280af22 NIS |
3328 | if (PL_eval_start) |
3329 | PL_eval_start = 0; | |
748a9306 | 3330 | else { |
a0d0e21e LW |
3331 | op_free(left); |
3332 | op_free(right); | |
3333 | return Nullop; | |
3334 | } | |
10c8fecd GS |
3335 | curop = list(force_list(left)); |
3336 | o = newBINOP(OP_AASSIGN, flags, list(force_list(right)), curop); | |
11343788 | 3337 | o->op_private = 0 | (flags >> 8); |
10c8fecd GS |
3338 | for (curop = ((LISTOP*)curop)->op_first; |
3339 | curop; curop = curop->op_sibling) | |
3340 | { | |
3341 | if (curop->op_type == OP_RV2HV && | |
3342 | ((UNOP*)curop)->op_first->op_type != OP_GV) { | |
3343 | o->op_private |= OPpASSIGN_HASH; | |
3344 | break; | |
3345 | } | |
3346 | } | |
a0d0e21e | 3347 | if (!(left->op_private & OPpLVAL_INTRO)) { |
11343788 | 3348 | OP *lastop = o; |
3280af22 | 3349 | PL_generation++; |
11343788 | 3350 | for (curop = LINKLIST(o); curop != o; curop = LINKLIST(curop)) { |
22c35a8c | 3351 | if (PL_opargs[curop->op_type] & OA_DANGEROUS) { |
79072805 | 3352 | if (curop->op_type == OP_GV) { |
638eceb6 | 3353 | GV *gv = cGVOPx_gv(curop); |
3280af22 | 3354 | if (gv == PL_defgv || SvCUR(gv) == PL_generation) |
79072805 | 3355 | break; |
3280af22 | 3356 | SvCUR(gv) = PL_generation; |
79072805 | 3357 | } |
748a9306 LW |
3358 | else if (curop->op_type == OP_PADSV || |
3359 | curop->op_type == OP_PADAV || | |
3360 | curop->op_type == OP_PADHV || | |
3361 | curop->op_type == OP_PADANY) { | |
3280af22 | 3362 | SV **svp = AvARRAY(PL_comppad_name); |
8e07c86e | 3363 | SV *sv = svp[curop->op_targ]; |
3280af22 | 3364 | if (SvCUR(sv) == PL_generation) |
748a9306 | 3365 | break; |
3280af22 | 3366 | SvCUR(sv) = PL_generation; /* (SvCUR not used any more) */ |
748a9306 | 3367 | } |
79072805 LW |
3368 | else if (curop->op_type == OP_RV2CV) |
3369 | break; | |
3370 | else if (curop->op_type == OP_RV2SV || | |
3371 | curop->op_type == OP_RV2AV || | |
3372 | curop->op_type == OP_RV2HV || | |
3373 | curop->op_type == OP_RV2GV) { | |
3374 | if (lastop->op_type != OP_GV) /* funny deref? */ | |
3375 | break; | |
3376 | } | |
1167e5da SM |
3377 | else if (curop->op_type == OP_PUSHRE) { |
3378 | if (((PMOP*)curop)->op_pmreplroot) { | |
3379 | GV *gv = (GV*)((PMOP*)curop)->op_pmreplroot; | |
3280af22 | 3380 | if (gv == PL_defgv || SvCUR(gv) == PL_generation) |
1167e5da | 3381 | break; |
3280af22 | 3382 | SvCUR(gv) = PL_generation; |
1167e5da SM |
3383 | } |
3384 | } | |
79072805 LW |
3385 | else |
3386 | break; | |
3387 | } | |
3388 | lastop = curop; | |
3389 | } | |
11343788 | 3390 | if (curop != o) |
10c8fecd | 3391 | o->op_private |= OPpASSIGN_COMMON; |
79072805 | 3392 | } |
c07a80fd | 3393 | if (right && right->op_type == OP_SPLIT) { |
3394 | OP* tmpop; | |
3395 | if ((tmpop = ((LISTOP*)right)->op_first) && | |
3396 | tmpop->op_type == OP_PUSHRE) | |
3397 | { | |
3398 | PMOP *pm = (PMOP*)tmpop; | |
3399 | if (left->op_type == OP_RV2AV && | |
3400 | !(left->op_private & OPpLVAL_INTRO) && | |
11343788 | 3401 | !(o->op_private & OPpASSIGN_COMMON) ) |
c07a80fd | 3402 | { |
3403 | tmpop = ((UNOP*)left)->op_first; | |
3404 | if (tmpop->op_type == OP_GV && !pm->op_pmreplroot) { | |
971a9dd3 GS |
3405 | #ifdef USE_ITHREADS |
3406 | pm->op_pmreplroot = (OP*)cPADOPx(tmpop)->op_padix; | |
3407 | cPADOPx(tmpop)->op_padix = 0; /* steal it */ | |
3408 | #else | |
3409 | pm->op_pmreplroot = (OP*)cSVOPx(tmpop)->op_sv; | |
3410 | cSVOPx(tmpop)->op_sv = Nullsv; /* steal it */ | |
3411 | #endif | |
c07a80fd | 3412 | pm->op_pmflags |= PMf_ONCE; |
11343788 | 3413 | tmpop = cUNOPo->op_first; /* to list (nulled) */ |
c07a80fd | 3414 | tmpop = ((UNOP*)tmpop)->op_first; /* to pushmark */ |
3415 | tmpop->op_sibling = Nullop; /* don't free split */ | |
3416 | right->op_next = tmpop->op_next; /* fix starting loc */ | |
11343788 | 3417 | op_free(o); /* blow off assign */ |
54310121 | 3418 | right->op_flags &= ~OPf_WANT; |
a5f75d66 | 3419 | /* "I don't know and I don't care." */ |
c07a80fd | 3420 | return right; |
3421 | } | |
3422 | } | |
3423 | else { | |
3280af22 | 3424 | if (PL_modcount < 10000 && |
c07a80fd | 3425 | ((LISTOP*)right)->op_last->op_type == OP_CONST) |
3426 | { | |
3427 | SV *sv = ((SVOP*)((LISTOP*)right)->op_last)->op_sv; | |
3428 | if (SvIVX(sv) == 0) | |
3280af22 | 3429 | sv_setiv(sv, PL_modcount+1); |
c07a80fd | 3430 | } |
3431 | } | |
3432 | } | |
3433 | } | |
11343788 | 3434 | return o; |
79072805 LW |
3435 | } |
3436 | if (!right) | |
3437 | right = newOP(OP_UNDEF, 0); | |
3438 | if (right->op_type == OP_READLINE) { | |
3439 | right->op_flags |= OPf_STACKED; | |
463ee0b2 | 3440 | return newBINOP(OP_NULL, flags, mod(scalar(left), OP_SASSIGN), scalar(right)); |
79072805 | 3441 | } |
a0d0e21e | 3442 | else { |
3280af22 | 3443 | PL_eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/ |
11343788 | 3444 | o = newBINOP(OP_SASSIGN, flags, |
463ee0b2 | 3445 | scalar(right), mod(scalar(left), OP_SASSIGN) ); |
3280af22 NIS |
3446 | if (PL_eval_start) |
3447 | PL_eval_start = 0; | |
748a9306 | 3448 | else { |
11343788 | 3449 | op_free(o); |
a0d0e21e LW |
3450 | return Nullop; |
3451 | } | |
3452 | } | |
11343788 | 3453 | return o; |
79072805 LW |
3454 | } |
3455 | ||
3456 | OP * | |
864dbfa3 | 3457 | Perl_newSTATEOP(pTHX_ I32 flags, char *label, OP *o) |
79072805 | 3458 | { |
11343788 | 3459 | dTHR; |
bbce6d69 | 3460 | U32 seq = intro_my(); |
79072805 LW |
3461 | register COP *cop; |
3462 | ||
b7dc083c | 3463 | NewOp(1101, cop, 1, COP); |
57843af0 | 3464 | if (PERLDB_LINE && CopLINE(PL_curcop) && PL_curstash != PL_debstash) { |
8990e307 | 3465 | cop->op_type = OP_DBSTATE; |
22c35a8c | 3466 | cop->op_ppaddr = PL_ppaddr[ OP_DBSTATE ]; |
8990e307 LW |
3467 | } |
3468 | else { | |
3469 | cop->op_type = OP_NEXTSTATE; | |
22c35a8c | 3470 | cop->op_ppaddr = PL_ppaddr[ OP_NEXTSTATE ]; |
8990e307 | 3471 | } |
79072805 | 3472 | cop->op_flags = flags; |
393fec97 | 3473 | cop->op_private = (PL_hints & HINT_BYTE); |
ff0cee69 | 3474 | #ifdef NATIVE_HINTS |
3475 | cop->op_private |= NATIVE_HINTS; | |
3476 | #endif | |
e24b16f9 | 3477 | PL_compiling.op_private = cop->op_private; |
79072805 LW |
3478 | cop->op_next = (OP*)cop; |
3479 | ||
463ee0b2 LW |
3480 | if (label) { |
3481 | cop->cop_label = label; | |
3280af22 | 3482 | PL_hints |= HINT_BLOCK_SCOPE; |
463ee0b2 | 3483 | } |
bbce6d69 | 3484 | cop->cop_seq = seq; |
3280af22 | 3485 | cop->cop_arybase = PL_curcop->cop_arybase; |
0453d815 | 3486 | if (specialWARN(PL_curcop->cop_warnings)) |
599cee73 PM |
3487 | cop->cop_warnings = PL_curcop->cop_warnings ; |
3488 | else | |
3489 | cop->cop_warnings = newSVsv(PL_curcop->cop_warnings) ; | |
3490 | ||
79072805 | 3491 | |
3280af22 | 3492 | if (PL_copline == NOLINE) |
57843af0 | 3493 | CopLINE_set(cop, CopLINE(PL_curcop)); |
79072805 | 3494 | else { |
57843af0 | 3495 | CopLINE_set(cop, PL_copline); |
3280af22 | 3496 | PL_copline = NOLINE; |
79072805 | 3497 | } |
57843af0 GS |
3498 | #ifdef USE_ITHREADS |
3499 | CopFILE_set(cop, CopFILE(PL_curcop)); /* XXXXX share in a pvtable? */ | |
3500 | #else | |
cc49e20b | 3501 | CopFILEGV_set(cop, (GV*)SvREFCNT_inc(CopFILEGV(PL_curcop))); |
57843af0 | 3502 | #endif |
11faa288 | 3503 | CopSTASH_set(cop, PL_curstash); |
79072805 | 3504 | |
3280af22 | 3505 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
cc49e20b | 3506 | SV **svp = av_fetch(CopFILEAV(PL_curcop), (I32)CopLINE(cop), FALSE); |
3280af22 | 3507 | if (svp && *svp != &PL_sv_undef && !SvIOK(*svp)) { |
a0d0e21e | 3508 | (void)SvIOK_on(*svp); |
57b2e452 | 3509 | SvIVX(*svp) = PTR2IV(cop); |
93a17b20 LW |
3510 | } |
3511 | } | |
3512 | ||
11343788 | 3513 | return prepend_elem(OP_LINESEQ, (OP*)cop, o); |
79072805 LW |
3514 | } |
3515 | ||
bbce6d69 | 3516 | /* "Introduce" my variables to visible status. */ |
3517 | U32 | |
864dbfa3 | 3518 | Perl_intro_my(pTHX) |
bbce6d69 | 3519 | { |
3520 | SV **svp; | |
3521 | SV *sv; | |
3522 | I32 i; | |
3523 | ||
3280af22 NIS |
3524 | if (! PL_min_intro_pending) |
3525 | return PL_cop_seqmax; | |
bbce6d69 | 3526 | |
3280af22 NIS |
3527 | svp = AvARRAY(PL_comppad_name); |
3528 | for (i = PL_min_intro_pending; i <= PL_max_intro_pending; i++) { | |
3529 | if ((sv = svp[i]) && sv != &PL_sv_undef && !SvIVX(sv)) { | |
c53d7c7d | 3530 | SvIVX(sv) = PAD_MAX; /* Don't know scope end yet. */ |
65202027 | 3531 | SvNVX(sv) = (NV)PL_cop_seqmax; |
bbce6d69 | 3532 | } |
3533 | } | |
3280af22 NIS |
3534 | PL_min_intro_pending = 0; |
3535 | PL_comppad_name_fill = PL_max_intro_pending; /* Needn't search higher */ | |
3536 | return PL_cop_seqmax++; | |
bbce6d69 | 3537 | } |
3538 | ||
79072805 | 3539 | OP * |
864dbfa3 | 3540 | Perl_newLOGOP(pTHX_ I32 type, I32 flags, OP *first, OP *other) |
79072805 | 3541 | { |
883ffac3 CS |
3542 | return new_logop(type, flags, &first, &other); |
3543 | } | |
3544 | ||
3bd495df | 3545 | STATIC OP * |
cea2e8a9 | 3546 | S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp) |
883ffac3 | 3547 | { |
11343788 | 3548 | dTHR; |
79072805 | 3549 | LOGOP *logop; |
11343788 | 3550 | OP *o; |
883ffac3 CS |
3551 | OP *first = *firstp; |
3552 | OP *other = *otherp; | |
79072805 | 3553 | |
a0d0e21e LW |
3554 | if (type == OP_XOR) /* Not short circuit, but here by precedence. */ |
3555 | return newBINOP(type, flags, scalar(first), scalar(other)); | |
3556 | ||
8990e307 | 3557 | scalarboolean(first); |
79072805 LW |
3558 | /* optimize "!a && b" to "a || b", and "!a || b" to "a && b" */ |
3559 | if (first->op_type == OP_NOT && (first->op_flags & OPf_SPECIAL)) { | |
3560 | if (type == OP_AND || type == OP_OR) { | |
3561 | if (type == OP_AND) | |
3562 | type = OP_OR; | |
3563 | else | |
3564 | type = OP_AND; | |
11343788 | 3565 | o = first; |
883ffac3 | 3566 | first = *firstp = cUNOPo->op_first; |
11343788 MB |
3567 | if (o->op_next) |
3568 | first->op_next = o->op_next; | |
3569 | cUNOPo->op_first = Nullop; | |
3570 | op_free(o); | |
79072805 LW |
3571 | } |
3572 | } | |
3573 | if (first->op_type == OP_CONST) { | |
4673fc70 | 3574 | if (ckWARN(WARN_BAREWORD) && (first->op_private & OPpCONST_BARE)) |
e476b1b5 | 3575 | Perl_warner(aTHX_ WARN_BAREWORD, "Bareword found in conditional"); |
79072805 LW |
3576 | if ((type == OP_AND) == (SvTRUE(((SVOP*)first)->op_sv))) { |
3577 | op_free(first); | |
883ffac3 | 3578 | *firstp = Nullop; |
79072805 LW |
3579 | return other; |
3580 | } | |
3581 | else { | |
3582 | op_free(other); | |
883ffac3 | 3583 | *otherp = Nullop; |
79072805 LW |
3584 | return first; |
3585 | } | |
3586 | } | |
3587 | else if (first->op_type == OP_WANTARRAY) { | |
3588 | if (type == OP_AND) | |
3589 | list(other); | |
3590 | else | |
3591 | scalar(other); | |
3592 | } | |
e476b1b5 | 3593 | else if (ckWARN(WARN_MISC) && (first->op_flags & OPf_KIDS)) { |
a6006777 | 3594 | OP *k1 = ((UNOP*)first)->op_first; |
3595 | OP *k2 = k1->op_sibling; | |
3596 | OPCODE warnop = 0; | |
3597 | switch (first->op_type) | |
3598 | { | |
3599 | case OP_NULL: | |
3600 | if (k2 && k2->op_type == OP_READLINE | |
3601 | && (k2->op_flags & OPf_STACKED) | |
55d729e4 | 3602 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) |
72b16652 | 3603 | { |
a6006777 | 3604 | warnop = k2->op_type; |
72b16652 | 3605 | } |
a6006777 | 3606 | break; |
3607 | ||
3608 | case OP_SASSIGN: | |
68dc0745 | 3609 | if (k1->op_type == OP_READDIR |
3610 | || k1->op_type == OP_GLOB | |
72b16652 | 3611 | || (k1->op_type == OP_NULL && k1->op_targ == OP_GLOB) |
68dc0745 | 3612 | || k1->op_type == OP_EACH) |
72b16652 GS |
3613 | { |
3614 | warnop = ((k1->op_type == OP_NULL) | |
3615 | ? k1->op_targ : k1->op_type); | |
3616 | } | |
a6006777 | 3617 | break; |
3618 | } | |
8ebc5c01 | 3619 | if (warnop) { |
57843af0 GS |
3620 | line_t oldline = CopLINE(PL_curcop); |
3621 | CopLINE_set(PL_curcop, PL_copline); | |
e476b1b5 | 3622 | Perl_warner(aTHX_ WARN_MISC, |
599cee73 | 3623 | "Value of %s%s can be \"0\"; test with defined()", |
22c35a8c | 3624 | PL_op_desc[warnop], |
68dc0745 | 3625 | ((warnop == OP_READLINE || warnop == OP_GLOB) |
3626 | ? " construct" : "() operator")); | |
57843af0 | 3627 | CopLINE_set(PL_curcop, oldline); |
8ebc5c01 | 3628 | } |
a6006777 | 3629 | } |
79072805 LW |
3630 | |
3631 | if (!other) | |
3632 | return first; | |
3633 | ||
a0d0e21e LW |
3634 | if (type == OP_ANDASSIGN || type == OP_ORASSIGN) |
3635 | other->op_private |= OPpASSIGN_BACKWARDS; /* other is an OP_SASSIGN */ | |
3636 | ||
b7dc083c | 3637 | NewOp(1101, logop, 1, LOGOP); |
79072805 LW |
3638 | |
3639 | logop->op_type = type; | |
22c35a8c | 3640 | logop->op_ppaddr = PL_ppaddr[type]; |
79072805 LW |
3641 | logop->op_first = first; |
3642 | logop->op_flags = flags | OPf_KIDS; | |
3643 | logop->op_other = LINKLIST(other); | |
c07a80fd | 3644 | logop->op_private = 1 | (flags >> 8); |
79072805 LW |
3645 | |
3646 | /* establish postfix order */ | |
3647 | logop->op_next = LINKLIST(first); | |
3648 | first->op_next = (OP*)logop; | |
3649 | first->op_sibling = other; | |
3650 | ||
11343788 MB |
3651 | o = newUNOP(OP_NULL, 0, (OP*)logop); |
3652 | other->op_next = o; | |
79072805 | 3653 | |
11343788 | 3654 | return o; |
79072805 LW |
3655 | } |
3656 | ||
3657 | OP * | |
864dbfa3 | 3658 | Perl_newCONDOP(pTHX_ I32 flags, OP *first, OP *trueop, OP *falseop) |
79072805 | 3659 | { |
11343788 | 3660 | dTHR; |
1a67a97c SM |
3661 | LOGOP *logop; |
3662 | OP *start; | |
11343788 | 3663 | OP *o; |
79072805 | 3664 | |
b1cb66bf | 3665 | if (!falseop) |
3666 | return newLOGOP(OP_AND, 0, first, trueop); | |
3667 | if (!trueop) | |
3668 | return newLOGOP(OP_OR, 0, first, falseop); | |
79072805 | 3669 | |
8990e307 | 3670 | scalarboolean(first); |
79072805 LW |
3671 | if (first->op_type == OP_CONST) { |
3672 | if (SvTRUE(((SVOP*)first)->op_sv)) { | |
3673 | op_free(first); | |
b1cb66bf | 3674 | op_free(falseop); |
3675 | return trueop; | |
79072805 LW |
3676 | } |
3677 | else { | |
3678 | op_free(first); | |
b1cb66bf | 3679 | op_free(trueop); |
3680 | return falseop; | |
79072805 LW |
3681 | } |
3682 | } | |
3683 | else if (first->op_type == OP_WANTARRAY) { | |
b1cb66bf | 3684 | list(trueop); |
3685 | scalar(falseop); | |
79072805 | 3686 | } |
1a67a97c SM |
3687 | NewOp(1101, logop, 1, LOGOP); |
3688 | logop->op_type = OP_COND_EXPR; | |
3689 | logop->op_ppaddr = PL_ppaddr[OP_COND_EXPR]; | |
3690 | logop->op_first = first; | |
3691 | logop->op_flags = flags | OPf_KIDS; | |
3692 | logop->op_private = 1 | (flags >> 8); | |
3693 | logop->op_other = LINKLIST(trueop); | |
3694 | logop->op_next = LINKLIST(falseop); | |
79072805 | 3695 | |
79072805 LW |
3696 | |
3697 | /* establish postfix order */ | |
1a67a97c SM |
3698 | start = LINKLIST(first); |
3699 | first->op_next = (OP*)logop; | |
79072805 | 3700 | |
b1cb66bf | 3701 | first->op_sibling = trueop; |
3702 | trueop->op_sibling = falseop; | |
1a67a97c | 3703 | o = newUNOP(OP_NULL, 0, (OP*)logop); |
79072805 | 3704 | |
1a67a97c | 3705 | trueop->op_next = falseop->op_next = o; |
79072805 | 3706 | |
1a67a97c | 3707 | o->op_next = start; |
11343788 | 3708 | return o; |
79072805 LW |
3709 | } |
3710 | ||
3711 | OP * | |
864dbfa3 | 3712 | Perl_newRANGE(pTHX_ I32 flags, OP *left, OP *right) |
79072805 | 3713 | { |
b35b2403 | 3714 | dTHR; |
1a67a97c | 3715 | LOGOP *range; |
79072805 LW |
3716 | OP *flip; |
3717 | OP *flop; | |
1a67a97c | 3718 | OP *leftstart; |
11343788 | 3719 | OP *o; |
79072805 | 3720 | |
1a67a97c | 3721 | NewOp(1101, range, 1, LOGOP); |
79072805 | 3722 | |
1a67a97c SM |
3723 | range->op_type = OP_RANGE; |
3724 | range->op_ppaddr = PL_ppaddr[OP_RANGE]; | |
3725 | range->op_first = left; | |
3726 | range->op_flags = OPf_KIDS; | |
3727 | leftstart = LINKLIST(left); | |
3728 | range->op_other = LINKLIST(right); | |
3729 | range->op_private = 1 | (flags >> 8); | |
79072805 LW |
3730 | |
3731 | left->op_sibling = right; | |
3732 | ||
1a67a97c SM |
3733 | range->op_next = (OP*)range; |
3734 | flip = newUNOP(OP_FLIP, flags, (OP*)range); | |
79072805 | 3735 | flop = newUNOP(OP_FLOP, 0, flip); |
11343788 | 3736 | o = newUNOP(OP_NULL, 0, flop); |
79072805 | 3737 | linklist(flop); |
1a67a97c | 3738 | range->op_next = leftstart; |
79072805 LW |
3739 | |
3740 | left->op_next = flip; | |
3741 | right->op_next = flop; | |
3742 | ||
1a67a97c SM |
3743 | range->op_targ = pad_alloc(OP_RANGE, SVs_PADMY); |
3744 | sv_upgrade(PAD_SV(range->op_targ), SVt_PVNV); | |
ed6116ce | 3745 | flip->op_targ = pad_alloc(OP_RANGE, SVs_PADMY); |
79072805 LW |
3746 | sv_upgrade(PAD_SV(flip->op_targ), SVt_PVNV); |
3747 | ||
3748 | flip->op_private = left->op_type == OP_CONST ? OPpFLIP_LINENUM : 0; | |
3749 | flop->op_private = right->op_type == OP_CONST ? OPpFLIP_LINENUM : 0; | |
3750 | ||
11343788 | 3751 | flip->op_next = o; |
79072805 | 3752 | if (!flip->op_private || !flop->op_private) |
11343788 | 3753 | linklist(o); /* blow off optimizer unless constant */ |
79072805 | 3754 | |
11343788 | 3755 | return o; |
79072805 LW |
3756 | } |
3757 | ||
3758 | OP * | |
864dbfa3 | 3759 | Perl_newLOOPOP(pTHX_ I32 flags, I32 debuggable, OP *expr, OP *block) |
79072805 | 3760 | { |
11343788 | 3761 | dTHR; |
463ee0b2 | 3762 | OP* listop; |
11343788 | 3763 | OP* o; |
463ee0b2 | 3764 | int once = block && block->op_flags & OPf_SPECIAL && |
a0d0e21e | 3765 | (block->op_type == OP_ENTERSUB || block->op_type == OP_NULL); |
93a17b20 | 3766 | |
463ee0b2 LW |
3767 | if (expr) { |
3768 | if (once && expr->op_type == OP_CONST && !SvTRUE(((SVOP*)expr)->op_sv)) | |
3769 | return block; /* do {} while 0 does once */ | |
fb73857a | 3770 | if (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB |
3771 | || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB)) { | |
774d564b | 3772 | expr = newUNOP(OP_DEFINED, 0, |
54b9620d | 3773 | newASSIGNOP(0, newDEFSVOP(), 0, expr) ); |
55d729e4 GS |
3774 | } else if (expr->op_flags & OPf_KIDS) { |
3775 | OP *k1 = ((UNOP*)expr)->op_first; | |
3776 | OP *k2 = (k1) ? k1->op_sibling : NULL; | |
3777 | switch (expr->op_type) { | |
3778 | case OP_NULL: | |
3779 | if (k2 && k2->op_type == OP_READLINE | |
3780 | && (k2->op_flags & OPf_STACKED) | |
3781 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) | |
3782 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3783 | break; | |
3784 | ||
3785 | case OP_SASSIGN: | |
3786 | if (k1->op_type == OP_READDIR | |
3787 | || k1->op_type == OP_GLOB | |
72b16652 | 3788 | || (k1->op_type == OP_NULL && k1->op_targ == OP_NULL) |
55d729e4 GS |
3789 | || k1->op_type == OP_EACH) |
3790 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3791 | break; | |
3792 | } | |
774d564b | 3793 | } |
463ee0b2 | 3794 | } |
93a17b20 | 3795 | |
8990e307 | 3796 | listop = append_elem(OP_LINESEQ, block, newOP(OP_UNSTACK, 0)); |
883ffac3 | 3797 | o = new_logop(OP_AND, 0, &expr, &listop); |
463ee0b2 | 3798 | |
883ffac3 CS |
3799 | if (listop) |
3800 | ((LISTOP*)listop)->op_last->op_next = LINKLIST(o); | |
79072805 | 3801 | |
11343788 MB |
3802 | if (once && o != listop) |
3803 | o->op_next = ((LOGOP*)cUNOPo->op_first)->op_other; | |
79072805 | 3804 | |
11343788 MB |
3805 | if (o == listop) |
3806 | o = newUNOP(OP_NULL, 0, o); /* or do {} while 1 loses outer block */ | |
748a9306 | 3807 | |
11343788 MB |
3808 | o->op_flags |= flags; |
3809 | o = scope(o); | |
3810 | o->op_flags |= OPf_SPECIAL; /* suppress POPBLOCK curpm restoration*/ | |
3811 | return o; | |
79072805 LW |
3812 | } |
3813 | ||
3814 | OP * | |
864dbfa3 | 3815 | Perl_newWHILEOP(pTHX_ I32 flags, I32 debuggable, LOOP *loop, I32 whileline, OP *expr, OP *block, OP *cont) |
79072805 | 3816 | { |
11343788 | 3817 | dTHR; |
79072805 LW |
3818 | OP *redo; |
3819 | OP *next = 0; | |
3820 | OP *listop; | |
11343788 | 3821 | OP *o; |
79072805 | 3822 | OP *condop; |
1ba6ee2b | 3823 | U8 loopflags = 0; |
79072805 | 3824 | |
fb73857a | 3825 | if (expr && (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB |
3826 | || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB))) { | |
748a9306 | 3827 | expr = newUNOP(OP_DEFINED, 0, |
54b9620d | 3828 | newASSIGNOP(0, newDEFSVOP(), 0, expr) ); |
55d729e4 GS |
3829 | } else if (expr && (expr->op_flags & OPf_KIDS)) { |
3830 | OP *k1 = ((UNOP*)expr)->op_first; | |
3831 | OP *k2 = (k1) ? k1->op_sibling : NULL; | |
3832 | switch (expr->op_type) { | |
3833 | case OP_NULL: | |
3834 | if (k2 && k2->op_type == OP_READLINE | |
3835 | && (k2->op_flags & OPf_STACKED) | |
3836 | && ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR)) | |
3837 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3838 | break; | |
3839 | ||
3840 | case OP_SASSIGN: | |
3841 | if (k1->op_type == OP_READDIR | |
3842 | || k1->op_type == OP_GLOB | |
72b16652 | 3843 | || (k1->op_type == OP_NULL && k1->op_targ == OP_GLOB) |
55d729e4 GS |
3844 | || k1->op_type == OP_EACH) |
3845 | expr = newUNOP(OP_DEFINED, 0, expr); | |
3846 | break; | |
3847 | } | |
748a9306 | 3848 | } |
79072805 LW |
3849 | |
3850 | if (!block) | |
3851 | block = newOP(OP_NULL, 0); | |
87246558 GS |
3852 | else if (cont) { |
3853 | block = scope(block); | |
3854 | } | |
79072805 | 3855 | |
1ba6ee2b | 3856 | if (cont) { |
79072805 | 3857 | next = LINKLIST(cont); |
1ba6ee2b GS |
3858 | loopflags |= OPpLOOP_CONTINUE; |
3859 | } | |
fb73857a | 3860 | if (expr) { |
85538317 GS |
3861 | OP *unstack = newOP(OP_UNSTACK, 0); |
3862 | if (!next) | |
3863 | next = unstack; | |
3864 | cont = append_elem(OP_LINESEQ, cont, unstack); | |
fb73857a | 3865 | if ((line_t)whileline != NOLINE) { |
3280af22 | 3866 | PL_copline = whileline; |
fb73857a | 3867 | cont = append_elem(OP_LINESEQ, cont, |
3868 | newSTATEOP(0, Nullch, Nullop)); | |
3869 | } | |
3870 | } | |
79072805 | 3871 | |
463ee0b2 | 3872 | listop = append_list(OP_LINESEQ, (LISTOP*)block, (LISTOP*)cont); |
79072805 LW |
3873 | redo = LINKLIST(listop); |
3874 | ||
3875 | if (expr) { | |
3280af22 | 3876 | PL_copline = whileline; |
883ffac3 CS |
3877 | scalar(listop); |
3878 | o = new_logop(OP_AND, 0, &expr, &listop); | |
11343788 | 3879 | if (o == expr && o->op_type == OP_CONST && !SvTRUE(cSVOPo->op_sv)) { |
85e6fe83 | 3880 | op_free(expr); /* oops, it's a while (0) */ |
463ee0b2 | 3881 | op_free((OP*)loop); |
883ffac3 | 3882 | return Nullop; /* listop already freed by new_logop */ |
463ee0b2 | 3883 | } |
883ffac3 CS |
3884 | if (listop) |
3885 | ((LISTOP*)listop)->op_last->op_next = condop = | |
3886 | (o == listop ? redo : LINKLIST(o)); | |
79072805 LW |
3887 | } |
3888 | else | |
11343788 | 3889 | o = listop; |
79072805 LW |
3890 | |
3891 | if (!loop) { | |
b7dc083c | 3892 | NewOp(1101,loop,1,LOOP); |
79072805 | 3893 | loop->op_type = OP_ENTERLOOP; |
22c35a8c | 3894 | loop->op_ppaddr = PL_ppaddr[OP_ENTERLOOP]; |
79072805 LW |
3895 | loop->op_private = 0; |
3896 | loop->op_next = (OP*)loop; | |
3897 | } | |
3898 | ||
11343788 | 3899 | o = newBINOP(OP_LEAVELOOP, 0, (OP*)loop, o); |
79072805 LW |
3900 | |
3901 | loop->op_redoop = redo; | |
11343788 | 3902 | loop->op_lastop = o; |
1ba6ee2b | 3903 | o->op_private |= loopflags; |
79072805 LW |
3904 | |
3905 | if (next) | |
3906 | loop->op_nextop = next; | |
3907 | else | |
11343788 | 3908 | loop->op_nextop = o; |
79072805 | 3909 | |
11343788 MB |
3910 | o->op_flags |= flags; |
3911 | o->op_private |= (flags >> 8); | |
3912 | return o; | |
79072805 LW |
3913 | } |
3914 | ||
3915 | OP * | |
864dbfa3 | 3916 | Perl_newFOROP(pTHX_ I32 flags,char *label,line_t forline,OP *sv,OP *expr,OP *block,OP *cont) |
79072805 LW |
3917 | { |
3918 | LOOP *loop; | |
fb73857a | 3919 | OP *wop; |
85e6fe83 | 3920 | int padoff = 0; |
4633a7c4 | 3921 | I32 iterflags = 0; |
79072805 | 3922 | |
79072805 | 3923 | if (sv) { |
85e6fe83 | 3924 | if (sv->op_type == OP_RV2SV) { /* symbol table variable */ |
748a9306 | 3925 | sv->op_type = OP_RV2GV; |
22c35a8c | 3926 | sv->op_ppaddr = PL_ppaddr[OP_RV2GV]; |
79072805 | 3927 | } |
85e6fe83 LW |
3928 | else if (sv->op_type == OP_PADSV) { /* private variable */ |
3929 | padoff = sv->op_targ; | |
743e66e6 | 3930 | sv->op_targ = 0; |
85e6fe83 LW |
3931 | op_free(sv); |
3932 | sv = Nullop; | |
3933 | } | |
54b9620d MB |
3934 | else if (sv->op_type == OP_THREADSV) { /* per-thread variable */ |
3935 | padoff = sv->op_targ; | |
743e66e6 | 3936 | sv->op_targ = 0; |
54b9620d MB |
3937 | iterflags |= OPf_SPECIAL; |
3938 | op_free(sv); | |
3939 | sv = Nullop; | |
3940 | } | |
79072805 | 3941 | else |
cea2e8a9 | 3942 | Perl_croak(aTHX_ "Can't use %s for loop variable", PL_op_desc[sv->op_type]); |
79072805 LW |
3943 | } |
3944 | else { | |
54b9620d MB |
3945 | #ifdef USE_THREADS |
3946 | padoff = find_threadsv("_"); | |
3947 | iterflags |= OPf_SPECIAL; | |
3948 | #else | |
3280af22 | 3949 | sv = newGVOP(OP_GV, 0, PL_defgv); |
54b9620d | 3950 | #endif |
79072805 | 3951 | } |
5f05dabc | 3952 | if (expr->op_type == OP_RV2AV || expr->op_type == OP_PADAV) { |
89ea2908 | 3953 | expr = mod(force_list(scalar(ref(expr, OP_ITER))), OP_GREPSTART); |
4633a7c4 LW |
3954 | iterflags |= OPf_STACKED; |
3955 | } | |
89ea2908 GA |
3956 | else if (expr->op_type == OP_NULL && |
3957 | (expr->op_flags & OPf_KIDS) && | |
3958 | ((BINOP*)expr)->op_first->op_type == OP_FLOP) | |
3959 | { | |
3960 | /* Basically turn for($x..$y) into the same as for($x,$y), but we | |
3961 | * set the STACKED flag to indicate that these values are to be | |
3962 | * treated as min/max values by 'pp_iterinit'. | |
3963 | */ | |
3964 | UNOP* flip = (UNOP*)((UNOP*)((BINOP*)expr)->op_first)->op_first; | |
1a67a97c | 3965 | LOGOP* range = (LOGOP*) flip->op_first; |
89ea2908 GA |
3966 | OP* left = range->op_first; |
3967 | OP* right = left->op_sibling; | |
5152d7c7 | 3968 | LISTOP* listop; |
89ea2908 GA |
3969 | |
3970 | range->op_flags &= ~OPf_KIDS; | |
3971 | range->op_first = Nullop; | |
3972 | ||
5152d7c7 | 3973 | listop = (LISTOP*)newLISTOP(OP_LIST, 0, left, right); |
1a67a97c SM |
3974 | listop->op_first->op_next = range->op_next; |
3975 | left->op_next = range->op_other; | |
5152d7c7 GS |
3976 | right->op_next = (OP*)listop; |
3977 | listop->op_next = listop->op_first; | |
89ea2908 GA |
3978 | |
3979 | op_free(expr); | |
5152d7c7 | 3980 | expr = (OP*)(listop); |
89ea2908 GA |
3981 | null(expr); |
3982 | iterflags |= OPf_STACKED; | |
3983 | } | |
3984 | else { | |
3985 | expr = mod(force_list(expr), OP_GREPSTART); | |
3986 | } | |
3987 | ||
3988 | ||
4633a7c4 | 3989 | loop = (LOOP*)list(convert(OP_ENTERITER, iterflags, |
89ea2908 | 3990 | append_elem(OP_LIST, expr, scalar(sv)))); |
85e6fe83 | 3991 | assert(!loop->op_next); |
b7dc083c | 3992 | #ifdef PL_OP_SLAB_ALLOC |
155aba94 GS |
3993 | { |
3994 | LOOP *tmp; | |
3995 | NewOp(1234,tmp,1,LOOP); | |
3996 | Copy(loop,tmp,1,LOOP); | |
3997 | loop = tmp; | |
3998 | } | |
b7dc083c | 3999 | #else |
85e6fe83 | 4000 | Renew(loop, 1, LOOP); |
b7dc083c | 4001 | #endif |
85e6fe83 | 4002 | loop->op_targ = padoff; |
fb73857a | 4003 | wop = newWHILEOP(flags, 1, loop, forline, newOP(OP_ITER, 0), block, cont); |
3280af22 | 4004 | PL_copline = forline; |
fb73857a | 4005 | return newSTATEOP(0, label, wop); |
79072805 LW |
4006 | } |
4007 | ||
8990e307 | 4008 | OP* |
864dbfa3 | 4009 | Perl_newLOOPEX(pTHX_ I32 type, OP *label) |
8990e307 | 4010 | { |
11343788 MB |
4011 | dTHR; |
4012 | OP *o; | |
2d8e6c8d GS |
4013 | STRLEN n_a; |
4014 | ||
8990e307 | 4015 | if (type != OP_GOTO || label->op_type == OP_CONST) { |
cdaebead MB |
4016 | /* "last()" means "last" */ |
4017 | if (label->op_type == OP_STUB && (label->op_flags & OPf_PARENS)) | |
4018 | o = newOP(type, OPf_SPECIAL); | |
4019 | else { | |
4020 | o = newPVOP(type, 0, savepv(label->op_type == OP_CONST | |
2d8e6c8d | 4021 | ? SvPVx(((SVOP*)label)->op_sv, n_a) |
cdaebead MB |
4022 | : "")); |
4023 | } | |
8990e307 LW |
4024 | op_free(label); |
4025 | } | |
4026 | else { | |
a0d0e21e LW |
4027 | if (label->op_type == OP_ENTERSUB) |
4028 | label = newUNOP(OP_REFGEN, 0, mod(label, OP_REFGEN)); | |
11343788 | 4029 | o = newUNOP(type, OPf_STACKED, label); |
8990e307 | 4030 | } |
3280af22 | 4031 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 | 4032 | return o; |
8990e307 LW |
4033 | } |
4034 | ||
79072805 | 4035 | void |
864dbfa3 | 4036 | Perl_cv_undef(pTHX_ CV *cv) |
79072805 | 4037 | { |
11343788 MB |
4038 | dTHR; |
4039 | #ifdef USE_THREADS | |
e858de61 MB |
4040 | if (CvMUTEXP(cv)) { |
4041 | MUTEX_DESTROY(CvMUTEXP(cv)); | |
4042 | Safefree(CvMUTEXP(cv)); | |
4043 | CvMUTEXP(cv) = 0; | |
4044 | } | |
11343788 MB |
4045 | #endif /* USE_THREADS */ |
4046 | ||
a0d0e21e | 4047 | if (!CvXSUB(cv) && CvROOT(cv)) { |
11343788 MB |
4048 | #ifdef USE_THREADS |
4049 | if (CvDEPTH(cv) || (CvOWNER(cv) && CvOWNER(cv) != thr)) | |
cea2e8a9 | 4050 | Perl_croak(aTHX_ "Can't undef active subroutine"); |
11343788 | 4051 | #else |
a0d0e21e | 4052 | if (CvDEPTH(cv)) |
cea2e8a9 | 4053 | Perl_croak(aTHX_ "Can't undef active subroutine"); |
11343788 | 4054 | #endif /* USE_THREADS */ |
8990e307 | 4055 | ENTER; |
a0d0e21e | 4056 | |
7766f137 | 4057 | SAVEVPTR(PL_curpad); |
3280af22 | 4058 | PL_curpad = 0; |
a0d0e21e | 4059 | |
a5f75d66 | 4060 | if (!CvCLONED(cv)) |
748a9306 | 4061 | op_free(CvROOT(cv)); |
79072805 | 4062 | CvROOT(cv) = Nullop; |
8990e307 | 4063 | LEAVE; |
79072805 | 4064 | } |
1d5db326 | 4065 | SvPOK_off((SV*)cv); /* forget prototype */ |
44a8e56a | 4066 | CvFLAGS(cv) = 0; |
8e07c86e AD |
4067 | SvREFCNT_dec(CvGV(cv)); |
4068 | CvGV(cv) = Nullgv; | |
4069 | SvREFCNT_dec(CvOUTSIDE(cv)); | |
4070 | CvOUTSIDE(cv) = Nullcv; | |
4071 | if (CvPADLIST(cv)) { | |
8ebc5c01 | 4072 | /* may be during global destruction */ |
4073 | if (SvREFCNT(CvPADLIST(cv))) { | |
93965878 | 4074 | I32 i = AvFILLp(CvPADLIST(cv)); |
8ebc5c01 | 4075 | while (i >= 0) { |
4076 | SV** svp = av_fetch(CvPADLIST(cv), i--, FALSE); | |
46fc3d4c | 4077 | SV* sv = svp ? *svp : Nullsv; |
4078 | if (!sv) | |
4079 | continue; | |
3280af22 NIS |
4080 | if (sv == (SV*)PL_comppad_name) |
4081 | PL_comppad_name = Nullav; | |
4082 | else if (sv == (SV*)PL_comppad) { | |
4083 | PL_comppad = Nullav; | |
4084 | PL_curpad = Null(SV**); | |
46fc3d4c | 4085 | } |
4086 | SvREFCNT_dec(sv); | |
8ebc5c01 | 4087 | } |
4088 | SvREFCNT_dec((SV*)CvPADLIST(cv)); | |
8e07c86e | 4089 | } |
8e07c86e AD |
4090 | CvPADLIST(cv) = Nullav; |
4091 | } | |
79072805 LW |
4092 | } |
4093 | ||
76e3520e | 4094 | STATIC void |
743e66e6 | 4095 | S_cv_dump(pTHX_ CV *cv) |
5f05dabc | 4096 | { |
62fde642 | 4097 | #ifdef DEBUGGING |
5f05dabc | 4098 | CV *outside = CvOUTSIDE(cv); |
4099 | AV* padlist = CvPADLIST(cv); | |
4fdae800 | 4100 | AV* pad_name; |
4101 | AV* pad; | |
4102 | SV** pname; | |
4103 | SV** ppad; | |
5f05dabc | 4104 | I32 ix; |
4105 | ||
b900a521 JH |
4106 | PerlIO_printf(Perl_debug_log, |
4107 | "\tCV=0x%"UVxf" (%s), OUTSIDE=0x%"UVxf" (%s)\n", | |
4108 | PTR2UV(cv), | |
ab50184a | 4109 | (CvANON(cv) ? "ANON" |
6b88bc9c | 4110 | : (cv == PL_main_cv) ? "MAIN" |
33b8ce05 | 4111 | : CvUNIQUE(cv) ? "UNIQUE" |
44a8e56a | 4112 | : CvGV(cv) ? GvNAME(CvGV(cv)) : "UNDEFINED"), |
b900a521 | 4113 | PTR2UV(outside), |
ab50184a CS |
4114 | (!outside ? "null" |
4115 | : CvANON(outside) ? "ANON" | |
6b88bc9c | 4116 | : (outside == PL_main_cv) ? "MAIN" |
07055b4c | 4117 | : CvUNIQUE(outside) ? "UNIQUE" |
44a8e56a | 4118 | : CvGV(outside) ? GvNAME(CvGV(outside)) : "UNDEFINED")); |
5f05dabc | 4119 | |
4fdae800 | 4120 | if (!padlist) |
4121 | return; | |
4122 | ||
4123 | pad_name = (AV*)*av_fetch(padlist, 0, FALSE); | |
4124 | pad = (AV*)*av_fetch(padlist, 1, FALSE); | |
4125 | pname = AvARRAY(pad_name); | |
4126 | ppad = AvARRAY(pad); | |
4127 | ||
93965878 | 4128 | for (ix = 1; ix <= AvFILLp(pad_name); ix++) { |
5f05dabc | 4129 | if (SvPOK(pname[ix])) |
b900a521 JH |
4130 | PerlIO_printf(Perl_debug_log, |
4131 | "\t%4d. 0x%"UVxf" (%s\"%s\" %"IVdf"-%"IVdf")\n", | |
894356b3 | 4132 | (int)ix, PTR2UV(ppad[ix]), |
4fdae800 | 4133 | SvFAKE(pname[ix]) ? "FAKE " : "", |
4134 | SvPVX(pname[ix]), | |
b900a521 JH |
4135 | (IV)I_32(SvNVX(pname[ix])), |
4136 | SvIVX(pname[ix])); | |
5f05dabc | 4137 | } |
743e66e6 | 4138 | #endif /* DEBUGGING */ |
62fde642 | 4139 | } |
5f05dabc | 4140 | |
76e3520e | 4141 | STATIC CV * |
cea2e8a9 | 4142 | S_cv_clone2(pTHX_ CV *proto, CV *outside) |
748a9306 | 4143 | { |
11343788 | 4144 | dTHR; |
748a9306 LW |
4145 | AV* av; |
4146 | I32 ix; | |
4147 | AV* protopadlist = CvPADLIST(proto); | |
4148 | AV* protopad_name = (AV*)*av_fetch(protopadlist, 0, FALSE); | |
4149 | AV* protopad = (AV*)*av_fetch(protopadlist, 1, FALSE); | |
5f05dabc | 4150 | SV** pname = AvARRAY(protopad_name); |
4151 | SV** ppad = AvARRAY(protopad); | |
93965878 NIS |
4152 | I32 fname = AvFILLp(protopad_name); |
4153 | I32 fpad = AvFILLp(protopad); | |
748a9306 LW |
4154 | AV* comppadlist; |
4155 | CV* cv; | |
4156 | ||
07055b4c CS |
4157 | assert(!CvUNIQUE(proto)); |
4158 | ||
748a9306 | 4159 | ENTER; |
354992b1 | 4160 | SAVECOMPPAD(); |
3280af22 NIS |
4161 | SAVESPTR(PL_comppad_name); |
4162 | SAVESPTR(PL_compcv); | |
748a9306 | 4163 | |
3280af22 | 4164 | cv = PL_compcv = (CV*)NEWSV(1104,0); |
fa83b5b6 | 4165 | sv_upgrade((SV *)cv, SvTYPE(proto)); |
a57ec3bd | 4166 | CvFLAGS(cv) = CvFLAGS(proto) & ~CVf_CLONE; |
a5f75d66 | 4167 | CvCLONED_on(cv); |
748a9306 | 4168 | |
11343788 | 4169 | #ifdef USE_THREADS |
12ca11f6 | 4170 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
11343788 | 4171 | MUTEX_INIT(CvMUTEXP(cv)); |
11343788 MB |
4172 | CvOWNER(cv) = 0; |
4173 | #endif /* USE_THREADS */ | |
57843af0 | 4174 | CvFILE(cv) = CvFILE(proto); |
44a8e56a | 4175 | CvGV(cv) = (GV*)SvREFCNT_inc(CvGV(proto)); |
748a9306 LW |
4176 | CvSTASH(cv) = CvSTASH(proto); |
4177 | CvROOT(cv) = CvROOT(proto); | |
4178 | CvSTART(cv) = CvSTART(proto); | |
5f05dabc | 4179 | if (outside) |
4180 | CvOUTSIDE(cv) = (CV*)SvREFCNT_inc(outside); | |
748a9306 | 4181 | |
68dc0745 | 4182 | if (SvPOK(proto)) |
4183 | sv_setpvn((SV*)cv, SvPVX(proto), SvCUR(proto)); | |
4184 | ||
3280af22 | 4185 | PL_comppad_name = newAV(); |
46fc3d4c | 4186 | for (ix = fname; ix >= 0; ix--) |
3280af22 | 4187 | av_store(PL_comppad_name, ix, SvREFCNT_inc(pname[ix])); |
748a9306 | 4188 | |
3280af22 | 4189 | PL_comppad = newAV(); |
748a9306 LW |
4190 | |
4191 | comppadlist = newAV(); | |
4192 | AvREAL_off(comppadlist); | |
3280af22 NIS |
4193 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
4194 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
748a9306 | 4195 | CvPADLIST(cv) = comppadlist; |
3280af22 NIS |
4196 | av_fill(PL_comppad, AvFILLp(protopad)); |
4197 | PL_curpad = AvARRAY(PL_comppad); | |
748a9306 LW |
4198 | |
4199 | av = newAV(); /* will be @_ */ | |
4200 | av_extend(av, 0); | |
3280af22 | 4201 | av_store(PL_comppad, 0, (SV*)av); |
748a9306 LW |
4202 | AvFLAGS(av) = AVf_REIFY; |
4203 | ||
9607fc9c | 4204 | for (ix = fpad; ix > 0; ix--) { |
4205 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; | |
3280af22 | 4206 | if (namesv && namesv != &PL_sv_undef) { |
aa689395 | 4207 | char *name = SvPVX(namesv); /* XXX */ |
4208 | if (SvFLAGS(namesv) & SVf_FAKE) { /* lexical from outside? */ | |
4209 | I32 off = pad_findlex(name, ix, SvIVX(namesv), | |
2680586e | 4210 | CvOUTSIDE(cv), cxstack_ix, 0, 0); |
5f05dabc | 4211 | if (!off) |
3280af22 | 4212 | PL_curpad[ix] = SvREFCNT_inc(ppad[ix]); |
5f05dabc | 4213 | else if (off != ix) |
cea2e8a9 | 4214 | Perl_croak(aTHX_ "panic: cv_clone: %s", name); |
748a9306 LW |
4215 | } |
4216 | else { /* our own lexical */ | |
aa689395 | 4217 | SV* sv; |
5f05dabc | 4218 | if (*name == '&') { |
4219 | /* anon code -- we'll come back for it */ | |
4220 | sv = SvREFCNT_inc(ppad[ix]); | |
4221 | } | |
4222 | else if (*name == '@') | |
4223 | sv = (SV*)newAV(); | |
748a9306 | 4224 | else if (*name == '%') |
5f05dabc | 4225 | sv = (SV*)newHV(); |
748a9306 | 4226 | else |
5f05dabc | 4227 | sv = NEWSV(0,0); |
4228 | if (!SvPADBUSY(sv)) | |
4229 | SvPADMY_on(sv); | |
3280af22 | 4230 | PL_curpad[ix] = sv; |
748a9306 LW |
4231 | } |
4232 | } | |
7766f137 | 4233 | else if (IS_PADGV(ppad[ix]) || IS_PADCONST(ppad[ix])) { |
743e66e6 GS |
4234 | PL_curpad[ix] = SvREFCNT_inc(ppad[ix]); |
4235 | } | |
748a9306 | 4236 | else { |
aa689395 | 4237 | SV* sv = NEWSV(0,0); |
748a9306 | 4238 | SvPADTMP_on(sv); |
3280af22 | 4239 | PL_curpad[ix] = sv; |
748a9306 LW |
4240 | } |
4241 | } | |
4242 | ||
5f05dabc | 4243 | /* Now that vars are all in place, clone nested closures. */ |
4244 | ||
9607fc9c | 4245 | for (ix = fpad; ix > 0; ix--) { |
4246 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; | |
aa689395 | 4247 | if (namesv |
3280af22 | 4248 | && namesv != &PL_sv_undef |
aa689395 | 4249 | && !(SvFLAGS(namesv) & SVf_FAKE) |
4250 | && *SvPVX(namesv) == '&' | |
5f05dabc | 4251 | && CvCLONE(ppad[ix])) |
4252 | { | |
4253 | CV *kid = cv_clone2((CV*)ppad[ix], cv); | |
4254 | SvREFCNT_dec(ppad[ix]); | |
4255 | CvCLONE_on(kid); | |
4256 | SvPADMY_on(kid); | |
3280af22 | 4257 | PL_curpad[ix] = (SV*)kid; |
748a9306 LW |
4258 | } |
4259 | } | |
4260 | ||
5f05dabc | 4261 | #ifdef DEBUG_CLOSURES |
ab50184a CS |
4262 | PerlIO_printf(Perl_debug_log, "Cloned inside:\n"); |
4263 | cv_dump(outside); | |
4264 | PerlIO_printf(Perl_debug_log, " from:\n"); | |
5f05dabc | 4265 | cv_dump(proto); |
ab50184a | 4266 | PerlIO_printf(Perl_debug_log, " to:\n"); |
5f05dabc | 4267 | cv_dump(cv); |
4268 | #endif | |
4269 | ||
748a9306 LW |
4270 | LEAVE; |
4271 | return cv; | |
4272 | } | |
4273 | ||
4274 | CV * | |
864dbfa3 | 4275 | Perl_cv_clone(pTHX_ CV *proto) |
5f05dabc | 4276 | { |
b099ddc0 | 4277 | CV *cv; |
1feb2720 | 4278 | LOCK_CRED_MUTEX; /* XXX create separate mutex */ |
b099ddc0 | 4279 | cv = cv_clone2(proto, CvOUTSIDE(proto)); |
1feb2720 | 4280 | UNLOCK_CRED_MUTEX; /* XXX create separate mutex */ |
b099ddc0 | 4281 | return cv; |
5f05dabc | 4282 | } |
4283 | ||
3fe9a6f1 | 4284 | void |
864dbfa3 | 4285 | Perl_cv_ckproto(pTHX_ CV *cv, GV *gv, char *p) |
3fe9a6f1 | 4286 | { |
0453d815 PM |
4287 | dTHR; |
4288 | ||
e476b1b5 | 4289 | if (((!p != !SvPOK(cv)) || (p && strNE(p, SvPVX(cv)))) && ckWARN_d(WARN_PROTOTYPE)) { |
46fc3d4c | 4290 | SV* msg = sv_newmortal(); |
3fe9a6f1 | 4291 | SV* name = Nullsv; |
4292 | ||
4293 | if (gv) | |
46fc3d4c | 4294 | gv_efullname3(name = sv_newmortal(), gv, Nullch); |
4295 | sv_setpv(msg, "Prototype mismatch:"); | |
4296 | if (name) | |
894356b3 | 4297 | Perl_sv_catpvf(aTHX_ msg, " sub %"SVf, name); |
3fe9a6f1 | 4298 | if (SvPOK(cv)) |
cea2e8a9 | 4299 | Perl_sv_catpvf(aTHX_ msg, " (%s)", SvPVX(cv)); |
46fc3d4c | 4300 | sv_catpv(msg, " vs "); |
4301 | if (p) | |
cea2e8a9 | 4302 | Perl_sv_catpvf(aTHX_ msg, "(%s)", p); |
46fc3d4c | 4303 | else |
4304 | sv_catpv(msg, "none"); | |
e476b1b5 | 4305 | Perl_warner(aTHX_ WARN_PROTOTYPE, "%"SVf, msg); |
3fe9a6f1 | 4306 | } |
4307 | } | |
4308 | ||
760ac839 | 4309 | SV * |
864dbfa3 | 4310 | Perl_cv_const_sv(pTHX_ CV *cv) |
760ac839 | 4311 | { |
54310121 | 4312 | if (!cv || !SvPOK(cv) || SvCUR(cv)) |
4313 | return Nullsv; | |
fe5e78ed GS |
4314 | return op_const_sv(CvSTART(cv), cv); |
4315 | } | |
760ac839 | 4316 | |
fe5e78ed | 4317 | SV * |
864dbfa3 | 4318 | Perl_op_const_sv(pTHX_ OP *o, CV *cv) |
fe5e78ed GS |
4319 | { |
4320 | SV *sv = Nullsv; | |
4321 | ||
0f79a09d | 4322 | if (!o) |
fe5e78ed GS |
4323 | return Nullsv; |
4324 | ||
0f79a09d | 4325 | if (o->op_type == OP_LINESEQ && cLISTOPo->op_first) |
fe5e78ed GS |
4326 | o = cLISTOPo->op_first->op_sibling; |
4327 | ||
4328 | for (; o; o = o->op_next) { | |
54310121 | 4329 | OPCODE type = o->op_type; |
fe5e78ed | 4330 | |
acb36ea4 | 4331 | if (sv && o->op_next == o) |
fe5e78ed | 4332 | return sv; |
54310121 | 4333 | if (type == OP_NEXTSTATE || type == OP_NULL || type == OP_PUSHMARK) |
4334 | continue; | |
4335 | if (type == OP_LEAVESUB || type == OP_RETURN) | |
4336 | break; | |
4337 | if (sv) | |
4338 | return Nullsv; | |
7766f137 | 4339 | if (type == OP_CONST && cSVOPo->op_sv) |
5dc0d613 | 4340 | sv = cSVOPo->op_sv; |
7766f137 | 4341 | else if ((type == OP_PADSV || type == OP_CONST) && cv) { |
e858de61 MB |
4342 | AV* padav = (AV*)(AvARRAY(CvPADLIST(cv))[1]); |
4343 | sv = padav ? AvARRAY(padav)[o->op_targ] : Nullsv; | |
5aabfad6 | 4344 | if (!sv || (!SvREADONLY(sv) && SvREFCNT(sv) > 1)) |
54310121 | 4345 | return Nullsv; |
760ac839 | 4346 | } |
54310121 | 4347 | else |
4348 | return Nullsv; | |
760ac839 | 4349 | } |
5aabfad6 | 4350 | if (sv) |
4351 | SvREADONLY_on(sv); | |
760ac839 LW |
4352 | return sv; |
4353 | } | |
4354 | ||
09bef843 SB |
4355 | void |
4356 | Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) | |
4357 | { | |
4358 | if (o) | |
4359 | SAVEFREEOP(o); | |
4360 | if (proto) | |
4361 | SAVEFREEOP(proto); | |
4362 | if (attrs) | |
4363 | SAVEFREEOP(attrs); | |
4364 | if (block) | |
4365 | SAVEFREEOP(block); | |
4366 | Perl_croak(aTHX_ "\"my sub\" not yet implemented"); | |
4367 | } | |
4368 | ||
748a9306 | 4369 | CV * |
864dbfa3 | 4370 | Perl_newSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *block) |
79072805 | 4371 | { |
09bef843 SB |
4372 | return Perl_newATTRSUB(aTHX_ floor, o, proto, Nullop, block); |
4373 | } | |
4374 | ||
4375 | CV * | |
4376 | Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) | |
4377 | { | |
11343788 | 4378 | dTHR; |
2d8e6c8d | 4379 | STRLEN n_a; |
83ee9e09 GS |
4380 | char *name; |
4381 | char *aname; | |
4382 | GV *gv; | |
2d8e6c8d | 4383 | char *ps = proto ? SvPVx(((SVOP*)proto)->op_sv, n_a) : Nullch; |
a2008d6d | 4384 | register CV *cv=0; |
a0d0e21e | 4385 | I32 ix; |
79072805 | 4386 | |
83ee9e09 GS |
4387 | name = o ? SvPVx(cSVOPo->op_sv, n_a) : Nullch; |
4388 | if (!name && PERLDB_NAMEANON && CopLINE(PL_curcop)) { | |
4389 | SV *sv = sv_newmortal(); | |
4390 | Perl_sv_setpvf(aTHX_ sv, "__ANON__[%s:%"IVdf"]", | |
4391 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
4392 | aname = SvPVX(sv); | |
4393 | } | |
4394 | else | |
4395 | aname = Nullch; | |
4396 | gv = gv_fetchpv(name ? name : (aname ? aname : "__ANON__"), | |
4397 | GV_ADDMULTI | ((block || attrs) ? 0 : GV_NOINIT), | |
4398 | SVt_PVCV); | |
4399 | ||
11343788 | 4400 | if (o) |
5dc0d613 | 4401 | SAVEFREEOP(o); |
3fe9a6f1 | 4402 | if (proto) |
4403 | SAVEFREEOP(proto); | |
09bef843 SB |
4404 | if (attrs) |
4405 | SAVEFREEOP(attrs); | |
3fe9a6f1 | 4406 | |
09bef843 | 4407 | if (SvTYPE(gv) != SVt_PVGV) { /* Maybe prototype now, and had at |
55d729e4 GS |
4408 | maximum a prototype before. */ |
4409 | if (SvTYPE(gv) > SVt_NULL) { | |
0453d815 | 4410 | if (!SvPOK((SV*)gv) && !(SvIOK((SV*)gv) && SvIVX((SV*)gv) == -1) |
e476b1b5 | 4411 | && ckWARN_d(WARN_PROTOTYPE)) |
f248d071 | 4412 | { |
e476b1b5 | 4413 | Perl_warner(aTHX_ WARN_PROTOTYPE, "Runaway prototype"); |
f248d071 | 4414 | } |
55d729e4 GS |
4415 | cv_ckproto((CV*)gv, NULL, ps); |
4416 | } | |
4417 | if (ps) | |
4418 | sv_setpv((SV*)gv, ps); | |
4419 | else | |
4420 | sv_setiv((SV*)gv, -1); | |
3280af22 NIS |
4421 | SvREFCNT_dec(PL_compcv); |
4422 | cv = PL_compcv = NULL; | |
4423 | PL_sub_generation++; | |
55d729e4 GS |
4424 | goto noblock; |
4425 | } | |
4426 | ||
68dc0745 | 4427 | if (!name || GvCVGEN(gv)) |
4428 | cv = Nullcv; | |
155aba94 | 4429 | else if ((cv = GvCV(gv))) { |
3fe9a6f1 | 4430 | cv_ckproto(cv, gv, ps); |
68dc0745 | 4431 | /* already defined (or promised)? */ |
4432 | if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) { | |
4433 | SV* const_sv; | |
fe5e78ed | 4434 | bool const_changed = TRUE; |
09bef843 | 4435 | if (!block && !attrs) { |
aa689395 | 4436 | /* just a "sub foo;" when &foo is already defined */ |
3280af22 | 4437 | SAVEFREESV(PL_compcv); |
aa689395 | 4438 | goto done; |
4439 | } | |
7bac28a0 | 4440 | /* ahem, death to those who redefine active sort subs */ |
3280af22 | 4441 | if (PL_curstackinfo->si_type == PERLSI_SORT && PL_sortcop == CvSTART(cv)) |
cea2e8a9 | 4442 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", name); |
09bef843 SB |
4443 | if (!block) |
4444 | goto withattrs; | |
155aba94 | 4445 | if ((const_sv = cv_const_sv(cv))) |
fe5e78ed | 4446 | const_changed = sv_cmp(const_sv, op_const_sv(block, Nullcv)); |
e476b1b5 | 4447 | if ((const_sv || const_changed) && ckWARN(WARN_REDEFINE)) |
83ee9e09 | 4448 | { |
57843af0 GS |
4449 | line_t oldline = CopLINE(PL_curcop); |
4450 | CopLINE_set(PL_curcop, PL_copline); | |
cea2e8a9 | 4451 | Perl_warner(aTHX_ WARN_REDEFINE, |
599cee73 | 4452 | const_sv ? "Constant subroutine %s redefined" |
09bef843 | 4453 | : "Subroutine %s redefined", name); |
57843af0 | 4454 | CopLINE_set(PL_curcop, oldline); |
79072805 | 4455 | } |
8990e307 | 4456 | SvREFCNT_dec(cv); |
68dc0745 | 4457 | cv = Nullcv; |
79072805 LW |
4458 | } |
4459 | } | |
09bef843 SB |
4460 | withattrs: |
4461 | if (attrs) { | |
4462 | HV *stash; | |
4463 | SV *rcv; | |
4464 | ||
4465 | /* Need to do a C<use attributes $stash_of_cv,\&cv,@attrs> | |
4466 | * before we clobber PL_compcv. | |
4467 | */ | |
4468 | if (cv && !block) { | |
4469 | rcv = (SV*)cv; | |
4470 | if (CvGV(cv) && GvSTASH(CvGV(cv)) && HvNAME(GvSTASH(CvGV(cv)))) | |
4471 | stash = GvSTASH(CvGV(cv)); | |
4472 | else if (CvSTASH(cv) && HvNAME(CvSTASH(cv))) | |
4473 | stash = CvSTASH(cv); | |
4474 | else | |
4475 | stash = PL_curstash; | |
4476 | } | |
4477 | else { | |
4478 | /* possibly about to re-define existing subr -- ignore old cv */ | |
4479 | rcv = (SV*)PL_compcv; | |
4480 | if (name && GvSTASH(gv) && HvNAME(GvSTASH(gv))) | |
4481 | stash = GvSTASH(gv); | |
4482 | else | |
4483 | stash = PL_curstash; | |
4484 | } | |
4485 | apply_attrs(stash, rcv, attrs); | |
4486 | } | |
a0d0e21e | 4487 | if (cv) { /* must reuse cv if autoloaded */ |
09bef843 SB |
4488 | if (!block) { |
4489 | /* got here with just attrs -- work done, so bug out */ | |
4490 | SAVEFREESV(PL_compcv); | |
4491 | goto done; | |
4492 | } | |
4633a7c4 | 4493 | cv_undef(cv); |
3280af22 NIS |
4494 | CvFLAGS(cv) = CvFLAGS(PL_compcv); |
4495 | CvOUTSIDE(cv) = CvOUTSIDE(PL_compcv); | |
4496 | CvOUTSIDE(PL_compcv) = 0; | |
4497 | CvPADLIST(cv) = CvPADLIST(PL_compcv); | |
4498 | CvPADLIST(PL_compcv) = 0; | |
4499 | if (SvREFCNT(PL_compcv) > 1) /* XXX Make closures transit through stub. */ | |
4500 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc((SV*)cv); | |
4501 | SvREFCNT_dec(PL_compcv); | |
a0d0e21e LW |
4502 | } |
4503 | else { | |
3280af22 | 4504 | cv = PL_compcv; |
44a8e56a | 4505 | if (name) { |
4506 | GvCV(gv) = cv; | |
4507 | GvCVGEN(gv) = 0; | |
3280af22 | 4508 | PL_sub_generation++; |
44a8e56a | 4509 | } |
a0d0e21e | 4510 | } |
44a8e56a | 4511 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
57843af0 | 4512 | CvFILE(cv) = CopFILE(PL_curcop); |
3280af22 | 4513 | CvSTASH(cv) = PL_curstash; |
11343788 MB |
4514 | #ifdef USE_THREADS |
4515 | CvOWNER(cv) = 0; | |
1cfa4ec7 | 4516 | if (!CvMUTEXP(cv)) { |
f6aaf501 | 4517 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
1cfa4ec7 GS |
4518 | MUTEX_INIT(CvMUTEXP(cv)); |
4519 | } | |
11343788 | 4520 | #endif /* USE_THREADS */ |
8990e307 | 4521 | |
3fe9a6f1 | 4522 | if (ps) |
4523 | sv_setpv((SV*)cv, ps); | |
4633a7c4 | 4524 | |
3280af22 | 4525 | if (PL_error_count) { |
c07a80fd | 4526 | op_free(block); |
4527 | block = Nullop; | |
68dc0745 | 4528 | if (name) { |
4529 | char *s = strrchr(name, ':'); | |
4530 | s = s ? s+1 : name; | |
6d4c2119 CS |
4531 | if (strEQ(s, "BEGIN")) { |
4532 | char *not_safe = | |
4533 | "BEGIN not safe after errors--compilation aborted"; | |
faef0170 | 4534 | if (PL_in_eval & EVAL_KEEPERR) |
cea2e8a9 | 4535 | Perl_croak(aTHX_ not_safe); |
6d4c2119 CS |
4536 | else { |
4537 | /* force display of errors found but not reported */ | |
38a03e6e | 4538 | sv_catpv(ERRSV, not_safe); |
cea2e8a9 | 4539 | Perl_croak(aTHX_ "%s", SvPVx(ERRSV, n_a)); |
6d4c2119 CS |
4540 | } |
4541 | } | |
68dc0745 | 4542 | } |
c07a80fd | 4543 | } |
a0d0e21e | 4544 | if (!block) { |
55d729e4 | 4545 | noblock: |
3280af22 | 4546 | PL_copline = NOLINE; |
a0d0e21e LW |
4547 | LEAVE_SCOPE(floor); |
4548 | return cv; | |
4549 | } | |
4550 | ||
3280af22 NIS |
4551 | if (AvFILLp(PL_comppad_name) < AvFILLp(PL_comppad)) |
4552 | av_store(PL_comppad_name, AvFILLp(PL_comppad), Nullsv); | |
a0d0e21e | 4553 | |
7766f137 GS |
4554 | if (CvLVALUE(cv)) { |
4555 | CvROOT(cv) = newUNOP(OP_LEAVESUBLV, 0, scalarseq(block)); | |
4556 | } | |
4557 | else { | |
4558 | CvROOT(cv) = newUNOP(OP_LEAVESUB, 0, scalarseq(block)); | |
4559 | } | |
4560 | CvROOT(cv)->op_private |= OPpREFCOUNTED; | |
4561 | OpREFCNT_set(CvROOT(cv), 1); | |
4562 | CvSTART(cv) = LINKLIST(CvROOT(cv)); | |
4563 | CvROOT(cv)->op_next = 0; | |
4564 | peep(CvSTART(cv)); | |
4565 | ||
4566 | /* now that optimizer has done its work, adjust pad values */ | |
54310121 | 4567 | if (CvCLONE(cv)) { |
3280af22 NIS |
4568 | SV **namep = AvARRAY(PL_comppad_name); |
4569 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { | |
54310121 | 4570 | SV *namesv; |
4571 | ||
7766f137 | 4572 | if (SvIMMORTAL(PL_curpad[ix]) || IS_PADGV(PL_curpad[ix]) || IS_PADCONST(PL_curpad[ix])) |
54310121 | 4573 | continue; |
4574 | /* | |
4575 | * The only things that a clonable function needs in its | |
4576 | * pad are references to outer lexicals and anonymous subs. | |
4577 | * The rest are created anew during cloning. | |
4578 | */ | |
4579 | if (!((namesv = namep[ix]) != Nullsv && | |
3280af22 | 4580 | namesv != &PL_sv_undef && |
54310121 | 4581 | (SvFAKE(namesv) || |
4582 | *SvPVX(namesv) == '&'))) | |
4583 | { | |
3280af22 NIS |
4584 | SvREFCNT_dec(PL_curpad[ix]); |
4585 | PL_curpad[ix] = Nullsv; | |
54310121 | 4586 | } |
4587 | } | |
a0d0e21e | 4588 | } |
54310121 | 4589 | else { |
4590 | AV *av = newAV(); /* Will be @_ */ | |
4591 | av_extend(av, 0); | |
3280af22 | 4592 | av_store(PL_comppad, 0, (SV*)av); |
54310121 | 4593 | AvFLAGS(av) = AVf_REIFY; |
79072805 | 4594 | |
3280af22 | 4595 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { |
7766f137 | 4596 | if (SvIMMORTAL(PL_curpad[ix]) || IS_PADGV(PL_curpad[ix]) || IS_PADCONST(PL_curpad[ix])) |
54310121 | 4597 | continue; |
3280af22 NIS |
4598 | if (!SvPADMY(PL_curpad[ix])) |
4599 | SvPADTMP_on(PL_curpad[ix]); | |
54310121 | 4600 | } |
4601 | } | |
79072805 | 4602 | |
83ee9e09 | 4603 | if (name || aname) { |
44a8e56a | 4604 | char *s; |
83ee9e09 | 4605 | char *tname = (name ? name : aname); |
44a8e56a | 4606 | |
3280af22 | 4607 | if (PERLDB_SUBLINE && PL_curstash != PL_debstash) { |
46fc3d4c | 4608 | SV *sv = NEWSV(0,0); |
44a8e56a | 4609 | SV *tmpstr = sv_newmortal(); |
549bb64a | 4610 | GV *db_postponed = gv_fetchpv("DB::postponed", GV_ADDMULTI, SVt_PVHV); |
83ee9e09 | 4611 | CV *pcv; |
44a8e56a | 4612 | HV *hv; |
4613 | ||
ed094faf GS |
4614 | Perl_sv_setpvf(aTHX_ sv, "%s:%ld-%ld", |
4615 | CopFILE(PL_curcop), | |
cc49e20b | 4616 | (long)PL_subline, (long)CopLINE(PL_curcop)); |
44a8e56a | 4617 | gv_efullname3(tmpstr, gv, Nullch); |
3280af22 | 4618 | hv_store(GvHV(PL_DBsub), SvPVX(tmpstr), SvCUR(tmpstr), sv, 0); |
44a8e56a | 4619 | hv = GvHVn(db_postponed); |
9607fc9c | 4620 | if (HvFILL(hv) > 0 && hv_exists(hv, SvPVX(tmpstr), SvCUR(tmpstr)) |
83ee9e09 GS |
4621 | && (pcv = GvCV(db_postponed))) |
4622 | { | |
44a8e56a | 4623 | dSP; |
924508f0 | 4624 | PUSHMARK(SP); |
44a8e56a | 4625 | XPUSHs(tmpstr); |
4626 | PUTBACK; | |
83ee9e09 | 4627 | call_sv((SV*)pcv, G_DISCARD); |
44a8e56a | 4628 | } |
4629 | } | |
79072805 | 4630 | |
83ee9e09 | 4631 | if ((s = strrchr(tname,':'))) |
28757baa | 4632 | s++; |
4633 | else | |
83ee9e09 | 4634 | s = tname; |
ed094faf | 4635 | |
7d30b5c4 | 4636 | if (*s != 'B' && *s != 'E' && *s != 'C' && *s != 'I') |
ed094faf GS |
4637 | goto done; |
4638 | ||
68dc0745 | 4639 | if (strEQ(s, "BEGIN")) { |
3280af22 | 4640 | I32 oldscope = PL_scopestack_ix; |
28757baa | 4641 | ENTER; |
57843af0 GS |
4642 | SAVECOPFILE(&PL_compiling); |
4643 | SAVECOPLINE(&PL_compiling); | |
3280af22 NIS |
4644 | save_svref(&PL_rs); |
4645 | sv_setsv(PL_rs, PL_nrs); | |
28757baa | 4646 | |
3280af22 NIS |
4647 | if (!PL_beginav) |
4648 | PL_beginav = newAV(); | |
28757baa | 4649 | DEBUG_x( dump_sub(gv) ); |
ed094faf | 4650 | av_push(PL_beginav, SvREFCNT_inc(cv)); |
28757baa | 4651 | GvCV(gv) = 0; |
3280af22 | 4652 | call_list(oldscope, PL_beginav); |
a6006777 | 4653 | |
3280af22 | 4654 | PL_curcop = &PL_compiling; |
a0ed51b3 | 4655 | PL_compiling.op_private = PL_hints; |
28757baa | 4656 | LEAVE; |
4657 | } | |
3280af22 NIS |
4658 | else if (strEQ(s, "END") && !PL_error_count) { |
4659 | if (!PL_endav) | |
4660 | PL_endav = newAV(); | |
ed094faf | 4661 | DEBUG_x( dump_sub(gv) ); |
3280af22 | 4662 | av_unshift(PL_endav, 1); |
ed094faf | 4663 | av_store(PL_endav, 0, SvREFCNT_inc(cv)); |
28757baa | 4664 | GvCV(gv) = 0; |
4665 | } | |
7d30b5c4 GS |
4666 | else if (strEQ(s, "CHECK") && !PL_error_count) { |
4667 | if (!PL_checkav) | |
4668 | PL_checkav = newAV(); | |
ed094faf | 4669 | DEBUG_x( dump_sub(gv) ); |
ddda08b7 GS |
4670 | if (PL_main_start && ckWARN(WARN_VOID)) |
4671 | Perl_warner(aTHX_ WARN_VOID, "Too late to run CHECK block"); | |
7d30b5c4 GS |
4672 | av_unshift(PL_checkav, 1); |
4673 | av_store(PL_checkav, 0, SvREFCNT_inc(cv)); | |
4f25aa18 GS |
4674 | GvCV(gv) = 0; |
4675 | } | |
3280af22 NIS |
4676 | else if (strEQ(s, "INIT") && !PL_error_count) { |
4677 | if (!PL_initav) | |
4678 | PL_initav = newAV(); | |
ed094faf | 4679 | DEBUG_x( dump_sub(gv) ); |
ddda08b7 GS |
4680 | if (PL_main_start && ckWARN(WARN_VOID)) |
4681 | Perl_warner(aTHX_ WARN_VOID, "Too late to run INIT block"); | |
3280af22 | 4682 | av_push(PL_initav, SvREFCNT_inc(cv)); |
b7aad4fe | 4683 | GvCV(gv) = 0; |
ae77835f | 4684 | } |
79072805 | 4685 | } |
a6006777 | 4686 | |
aa689395 | 4687 | done: |
3280af22 | 4688 | PL_copline = NOLINE; |
8990e307 | 4689 | LEAVE_SCOPE(floor); |
a0d0e21e | 4690 | return cv; |
79072805 LW |
4691 | } |
4692 | ||
b099ddc0 | 4693 | /* XXX unsafe for threads if eval_owner isn't held */ |
954c1994 GS |
4694 | /* |
4695 | =for apidoc newCONSTSUB | |
4696 | ||
4697 | Creates a constant sub equivalent to Perl C<sub FOO () { 123 }> which is | |
4698 | eligible for inlining at compile-time. | |
4699 | ||
4700 | =cut | |
4701 | */ | |
4702 | ||
5476c433 | 4703 | void |
864dbfa3 | 4704 | Perl_newCONSTSUB(pTHX_ HV *stash, char *name, SV *sv) |
5476c433 JD |
4705 | { |
4706 | dTHR; | |
5476c433 | 4707 | |
11faa288 GS |
4708 | ENTER; |
4709 | SAVECOPLINE(PL_curcop); | |
4710 | SAVEHINTS(); | |
4711 | ||
4712 | CopLINE_set(PL_curcop, PL_copline); | |
3280af22 | 4713 | PL_hints &= ~HINT_BLOCK_SCOPE; |
11faa288 GS |
4714 | |
4715 | if (stash) { | |
4716 | SAVESPTR(PL_curstash); | |
4717 | SAVECOPSTASH(PL_curcop); | |
4718 | PL_curstash = stash; | |
4719 | #ifdef USE_ITHREADS | |
4720 | CopSTASHPV(PL_curcop) = stash ? HvNAME(stash) : Nullch; | |
4721 | #else | |
4722 | CopSTASH(PL_curcop) = stash; | |
4723 | #endif | |
4724 | } | |
5476c433 | 4725 | |
09bef843 | 4726 | newATTRSUB( |
be24f278 | 4727 | start_subparse(FALSE, 0), |
5476c433 | 4728 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
6b88bc9c | 4729 | newSVOP(OP_CONST, 0, &PL_sv_no), /* SvPV(&PL_sv_no) == "" -- GMB */ |
09bef843 | 4730 | Nullop, |
5476c433 JD |
4731 | newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv)) |
4732 | ); | |
4733 | ||
11faa288 | 4734 | LEAVE; |
5476c433 JD |
4735 | } |
4736 | ||
954c1994 GS |
4737 | /* |
4738 | =for apidoc U||newXS | |
4739 | ||
4740 | Used by C<xsubpp> to hook up XSUBs as Perl subs. | |
4741 | ||
4742 | =cut | |
4743 | */ | |
4744 | ||
57d3b86d | 4745 | CV * |
864dbfa3 | 4746 | Perl_newXS(pTHX_ char *name, XSUBADDR_t subaddr, char *filename) |
a0d0e21e | 4747 | { |
11343788 | 4748 | dTHR; |
44a8e56a | 4749 | GV *gv = gv_fetchpv(name ? name : "__ANON__", GV_ADDMULTI, SVt_PVCV); |
79072805 | 4750 | register CV *cv; |
44a8e56a | 4751 | |
155aba94 | 4752 | if ((cv = (name ? GvCV(gv) : Nullcv))) { |
44a8e56a | 4753 | if (GvCVGEN(gv)) { |
4754 | /* just a cached method */ | |
4755 | SvREFCNT_dec(cv); | |
4756 | cv = 0; | |
4757 | } | |
4758 | else if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) { | |
4759 | /* already defined (or promised) */ | |
599cee73 | 4760 | if (ckWARN(WARN_REDEFINE) && !(CvGV(cv) && GvSTASH(CvGV(cv)) |
2f34f9d4 IZ |
4761 | && HvNAME(GvSTASH(CvGV(cv))) |
4762 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), "autouse"))) { | |
57843af0 | 4763 | line_t oldline = CopLINE(PL_curcop); |
51f6edd3 | 4764 | if (PL_copline != NOLINE) |
57843af0 | 4765 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 4766 | Perl_warner(aTHX_ WARN_REDEFINE, "Subroutine %s redefined",name); |
57843af0 | 4767 | CopLINE_set(PL_curcop, oldline); |
a0d0e21e LW |
4768 | } |
4769 | SvREFCNT_dec(cv); | |
4770 | cv = 0; | |
79072805 | 4771 | } |
79072805 | 4772 | } |
44a8e56a | 4773 | |
4774 | if (cv) /* must reuse cv if autoloaded */ | |
4775 | cv_undef(cv); | |
a0d0e21e LW |
4776 | else { |
4777 | cv = (CV*)NEWSV(1105,0); | |
4778 | sv_upgrade((SV *)cv, SVt_PVCV); | |
44a8e56a | 4779 | if (name) { |
4780 | GvCV(gv) = cv; | |
4781 | GvCVGEN(gv) = 0; | |
3280af22 | 4782 | PL_sub_generation++; |
44a8e56a | 4783 | } |
a0d0e21e | 4784 | } |
5196be3e | 4785 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
11343788 | 4786 | #ifdef USE_THREADS |
12ca11f6 | 4787 | New(666, CvMUTEXP(cv), 1, perl_mutex); |
11343788 | 4788 | MUTEX_INIT(CvMUTEXP(cv)); |
11343788 MB |
4789 | CvOWNER(cv) = 0; |
4790 | #endif /* USE_THREADS */ | |
b195d487 | 4791 | (void)gv_fetchfile(filename); |
57843af0 GS |
4792 | CvFILE(cv) = filename; /* NOTE: not copied, as it is expected to be |
4793 | an external constant string */ | |
a0d0e21e | 4794 | CvXSUB(cv) = subaddr; |
44a8e56a | 4795 | |
28757baa | 4796 | if (name) { |
4797 | char *s = strrchr(name,':'); | |
4798 | if (s) | |
4799 | s++; | |
4800 | else | |
4801 | s = name; | |
ed094faf | 4802 | |
7d30b5c4 | 4803 | if (*s != 'B' && *s != 'E' && *s != 'C' && *s != 'I') |
ed094faf GS |
4804 | goto done; |
4805 | ||
28757baa | 4806 | if (strEQ(s, "BEGIN")) { |
3280af22 NIS |
4807 | if (!PL_beginav) |
4808 | PL_beginav = newAV(); | |
ed094faf | 4809 | av_push(PL_beginav, SvREFCNT_inc(cv)); |
44a8e56a | 4810 | GvCV(gv) = 0; |
28757baa | 4811 | } |
4812 | else if (strEQ(s, "END")) { | |
3280af22 NIS |
4813 | if (!PL_endav) |
4814 | PL_endav = newAV(); | |
4815 | av_unshift(PL_endav, 1); | |
ed094faf | 4816 | av_store(PL_endav, 0, SvREFCNT_inc(cv)); |
44a8e56a | 4817 | GvCV(gv) = 0; |
28757baa | 4818 | } |
7d30b5c4 GS |
4819 | else if (strEQ(s, "CHECK")) { |
4820 | if (!PL_checkav) | |
4821 | PL_checkav = newAV(); | |
ddda08b7 GS |
4822 | if (PL_main_start && ckWARN(WARN_VOID)) |
4823 | Perl_warner(aTHX_ WARN_VOID, "Too late to run CHECK block"); | |
7d30b5c4 GS |
4824 | av_unshift(PL_checkav, 1); |
4825 | av_store(PL_checkav, 0, SvREFCNT_inc(cv)); | |
4f25aa18 GS |
4826 | GvCV(gv) = 0; |
4827 | } | |
7d07dbc2 | 4828 | else if (strEQ(s, "INIT")) { |
3280af22 NIS |
4829 | if (!PL_initav) |
4830 | PL_initav = newAV(); | |
ddda08b7 GS |
4831 | if (PL_main_start && ckWARN(WARN_VOID)) |
4832 | Perl_warner(aTHX_ WARN_VOID, "Too late to run INIT block"); | |
ed094faf | 4833 | av_push(PL_initav, SvREFCNT_inc(cv)); |
f8f842e4 | 4834 | GvCV(gv) = 0; |
ae77835f | 4835 | } |
28757baa | 4836 | } |
8990e307 | 4837 | else |
a5f75d66 | 4838 | CvANON_on(cv); |
44a8e56a | 4839 | |
ed094faf | 4840 | done: |
a0d0e21e | 4841 | return cv; |
79072805 LW |
4842 | } |
4843 | ||
4844 | void | |
864dbfa3 | 4845 | Perl_newFORM(pTHX_ I32 floor, OP *o, OP *block) |
79072805 | 4846 | { |
11343788 | 4847 | dTHR; |
79072805 LW |
4848 | register CV *cv; |
4849 | char *name; | |
4850 | GV *gv; | |
a0d0e21e | 4851 | I32 ix; |
2d8e6c8d | 4852 | STRLEN n_a; |
79072805 | 4853 | |
11343788 | 4854 | if (o) |
2d8e6c8d | 4855 | name = SvPVx(cSVOPo->op_sv, n_a); |
79072805 LW |
4856 | else |
4857 | name = "STDOUT"; | |
85e6fe83 | 4858 | gv = gv_fetchpv(name,TRUE, SVt_PVFM); |
a5f75d66 | 4859 | GvMULTI_on(gv); |
155aba94 | 4860 | if ((cv = GvFORM(gv))) { |
599cee73 | 4861 | if (ckWARN(WARN_REDEFINE)) { |
57843af0 | 4862 | line_t oldline = CopLINE(PL_curcop); |
79072805 | 4863 | |
57843af0 | 4864 | CopLINE_set(PL_curcop, PL_copline); |
cea2e8a9 | 4865 | Perl_warner(aTHX_ WARN_REDEFINE, "Format %s redefined",name); |
57843af0 | 4866 | CopLINE_set(PL_curcop, oldline); |
79072805 | 4867 | } |
8990e307 | 4868 | SvREFCNT_dec(cv); |
79072805 | 4869 | } |
3280af22 | 4870 | cv = PL_compcv; |
79072805 | 4871 | GvFORM(gv) = cv; |
44a8e56a | 4872 | CvGV(cv) = (GV*)SvREFCNT_inc(gv); |
57843af0 | 4873 | CvFILE(cv) = CopFILE(PL_curcop); |
79072805 | 4874 | |
3280af22 NIS |
4875 | for (ix = AvFILLp(PL_comppad); ix > 0; ix--) { |
4876 | if (!SvPADMY(PL_curpad[ix]) && !SvIMMORTAL(PL_curpad[ix])) | |
4877 | SvPADTMP_on(PL_curpad[ix]); | |
a0d0e21e LW |
4878 | } |
4879 | ||
79072805 | 4880 | CvROOT(cv) = newUNOP(OP_LEAVEWRITE, 0, scalarseq(block)); |
7934575e GS |
4881 | CvROOT(cv)->op_private |= OPpREFCOUNTED; |
4882 | OpREFCNT_set(CvROOT(cv), 1); | |
79072805 LW |
4883 | CvSTART(cv) = LINKLIST(CvROOT(cv)); |
4884 | CvROOT(cv)->op_next = 0; | |
4885 | peep(CvSTART(cv)); | |
11343788 | 4886 | op_free(o); |
3280af22 | 4887 | PL_copline = NOLINE; |
8990e307 | 4888 | LEAVE_SCOPE(floor); |
79072805 LW |
4889 | } |
4890 | ||
4891 | OP * | |
864dbfa3 | 4892 | Perl_newANONLIST(pTHX_ OP *o) |
79072805 | 4893 | { |
93a17b20 | 4894 | return newUNOP(OP_REFGEN, 0, |
11343788 | 4895 | mod(list(convert(OP_ANONLIST, 0, o)), OP_REFGEN)); |
79072805 LW |
4896 | } |
4897 | ||
4898 | OP * | |
864dbfa3 | 4899 | Perl_newANONHASH(pTHX_ OP *o) |
79072805 | 4900 | { |
93a17b20 | 4901 | return newUNOP(OP_REFGEN, 0, |
11343788 | 4902 | mod(list(convert(OP_ANONHASH, 0, o)), OP_REFGEN)); |
a0d0e21e LW |
4903 | } |
4904 | ||
4905 | OP * | |
864dbfa3 | 4906 | Perl_newANONSUB(pTHX_ I32 floor, OP *proto, OP *block) |
a0d0e21e | 4907 | { |
09bef843 SB |
4908 | return newANONATTRSUB(floor, proto, Nullop, block); |
4909 | } | |
4910 | ||
4911 | OP * | |
4912 | Perl_newANONATTRSUB(pTHX_ I32 floor, OP *proto, OP *attrs, OP *block) | |
4913 | { | |
a0d0e21e | 4914 | return newUNOP(OP_REFGEN, 0, |
09bef843 SB |
4915 | newSVOP(OP_ANONCODE, 0, |
4916 | (SV*)newATTRSUB(floor, 0, proto, attrs, block))); | |
79072805 LW |
4917 | } |
4918 | ||
4919 | OP * | |
864dbfa3 | 4920 | Perl_oopsAV(pTHX_ OP *o) |
79072805 | 4921 | { |
ed6116ce LW |
4922 | switch (o->op_type) { |
4923 | case OP_PADSV: | |
4924 | o->op_type = OP_PADAV; | |
22c35a8c | 4925 | o->op_ppaddr = PL_ppaddr[OP_PADAV]; |
51e247a3 | 4926 | return ref(o, OP_RV2AV); |
ed6116ce LW |
4927 | |
4928 | case OP_RV2SV: | |
79072805 | 4929 | o->op_type = OP_RV2AV; |
22c35a8c | 4930 | o->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
79072805 | 4931 | ref(o, OP_RV2AV); |
ed6116ce LW |
4932 | break; |
4933 | ||
4934 | default: | |
0453d815 PM |
4935 | if (ckWARN_d(WARN_INTERNAL)) |
4936 | Perl_warner(aTHX_ WARN_INTERNAL, "oops: oopsAV"); | |
ed6116ce LW |
4937 | break; |
4938 | } | |
79072805 LW |
4939 | return o; |
4940 | } | |
4941 | ||
4942 | OP * | |
864dbfa3 | 4943 | Perl_oopsHV(pTHX_ OP *o) |
79072805 | 4944 | { |
0453d815 | 4945 | dTHR; |
0453d815 | 4946 | |
ed6116ce LW |
4947 | switch (o->op_type) { |
4948 | case OP_PADSV: | |
4949 | case OP_PADAV: | |
4950 | o->op_type = OP_PADHV; | |
22c35a8c | 4951 | o->op_ppaddr = PL_ppaddr[OP_PADHV]; |
51e247a3 | 4952 | return ref(o, OP_RV2HV); |
ed6116ce LW |
4953 | |
4954 | case OP_RV2SV: | |
4955 | case OP_RV2AV: | |
79072805 | 4956 | o->op_type = OP_RV2HV; |
22c35a8c | 4957 | o->op_ppaddr = PL_ppaddr[OP_RV2HV]; |
79072805 | 4958 | ref(o, OP_RV2HV); |
ed6116ce LW |
4959 | break; |
4960 | ||
4961 | default: | |
0453d815 PM |
4962 | if (ckWARN_d(WARN_INTERNAL)) |
4963 | Perl_warner(aTHX_ WARN_INTERNAL, "oops: oopsHV"); | |
ed6116ce LW |
4964 | break; |
4965 | } | |
79072805 LW |
4966 | return o; |
4967 | } | |
4968 | ||
4969 | OP * | |
864dbfa3 | 4970 | Perl_newAVREF(pTHX_ OP *o) |
79072805 | 4971 | { |
ed6116ce LW |
4972 | if (o->op_type == OP_PADANY) { |
4973 | o->op_type = OP_PADAV; | |
22c35a8c | 4974 | o->op_ppaddr = PL_ppaddr[OP_PADAV]; |
93a17b20 | 4975 | return o; |
ed6116ce | 4976 | } |
79072805 LW |
4977 | return newUNOP(OP_RV2AV, 0, scalar(o)); |
4978 | } | |
4979 | ||
4980 | OP * | |
864dbfa3 | 4981 | Perl_newGVREF(pTHX_ I32 type, OP *o) |
79072805 | 4982 | { |
82092f1d | 4983 | if (type == OP_MAPSTART || type == OP_GREPSTART || type == OP_SORT) |
a0d0e21e | 4984 | return newUNOP(OP_NULL, 0, o); |
748a9306 | 4985 | return ref(newUNOP(OP_RV2GV, OPf_REF, o), type); |
79072805 LW |
4986 | } |
4987 | ||
4988 | OP * | |
864dbfa3 | 4989 | Perl_newHVREF(pTHX_ OP *o) |
79072805 | 4990 | { |
ed6116ce LW |
4991 | if (o->op_type == OP_PADANY) { |
4992 | o->op_type = OP_PADHV; | |
22c35a8c | 4993 | o->op_ppaddr = PL_ppaddr[OP_PADHV]; |
93a17b20 | 4994 | return o; |
ed6116ce | 4995 | } |
79072805 LW |
4996 | return newUNOP(OP_RV2HV, 0, scalar(o)); |
4997 | } | |
4998 | ||
4999 | OP * | |
864dbfa3 | 5000 | Perl_oopsCV(pTHX_ OP *o) |
79072805 | 5001 | { |
cea2e8a9 | 5002 | Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__); |
79072805 LW |
5003 | /* STUB */ |
5004 | return o; | |
5005 | } | |
5006 | ||
5007 | OP * | |
864dbfa3 | 5008 | Perl_newCVREF(pTHX_ I32 flags, OP *o) |
79072805 | 5009 | { |
c07a80fd | 5010 | return newUNOP(OP_RV2CV, flags, scalar(o)); |
79072805 LW |
5011 | } |
5012 | ||
5013 | OP * | |
864dbfa3 | 5014 | Perl_newSVREF(pTHX_ OP *o) |
79072805 | 5015 | { |
ed6116ce LW |
5016 | if (o->op_type == OP_PADANY) { |
5017 | o->op_type = OP_PADSV; | |
22c35a8c | 5018 | o->op_ppaddr = PL_ppaddr[OP_PADSV]; |
93a17b20 | 5019 | return o; |
ed6116ce | 5020 | } |
224a4551 MB |
5021 | else if (o->op_type == OP_THREADSV && !(o->op_flags & OPpDONE_SVREF)) { |
5022 | o->op_flags |= OPpDONE_SVREF; | |
a863c7d1 | 5023 | return o; |
224a4551 | 5024 | } |
79072805 LW |
5025 | return newUNOP(OP_RV2SV, 0, scalar(o)); |
5026 | } | |
5027 | ||
5028 | /* Check routines. */ | |
5029 | ||
5030 | OP * | |
cea2e8a9 | 5031 | Perl_ck_anoncode(pTHX_ OP *o) |
5f05dabc | 5032 | { |
178c6305 CS |
5033 | PADOFFSET ix; |
5034 | SV* name; | |
5035 | ||
5036 | name = NEWSV(1106,0); | |
5037 | sv_upgrade(name, SVt_PVNV); | |
5038 | sv_setpvn(name, "&", 1); | |
5039 | SvIVX(name) = -1; | |
5040 | SvNVX(name) = 1; | |
5dc0d613 | 5041 | ix = pad_alloc(o->op_type, SVs_PADMY); |
3280af22 NIS |
5042 | av_store(PL_comppad_name, ix, name); |
5043 | av_store(PL_comppad, ix, cSVOPo->op_sv); | |
5dc0d613 MB |
5044 | SvPADMY_on(cSVOPo->op_sv); |
5045 | cSVOPo->op_sv = Nullsv; | |
5046 | cSVOPo->op_targ = ix; | |
5047 | return o; | |
5f05dabc | 5048 | } |
5049 | ||
5050 | OP * | |
cea2e8a9 | 5051 | Perl_ck_bitop(pTHX_ OP *o) |
55497cff | 5052 | { |
3280af22 | 5053 | o->op_private = PL_hints; |
5dc0d613 | 5054 | return o; |
55497cff | 5055 | } |
5056 | ||
5057 | OP * | |
cea2e8a9 | 5058 | Perl_ck_concat(pTHX_ OP *o) |
79072805 | 5059 | { |
11343788 MB |
5060 | if (cUNOPo->op_first->op_type == OP_CONCAT) |
5061 | o->op_flags |= OPf_STACKED; | |
5062 | return o; | |
79072805 LW |
5063 | } |
5064 | ||
5065 | OP * | |
cea2e8a9 | 5066 | Perl_ck_spair(pTHX_ OP *o) |
79072805 | 5067 | { |
11343788 | 5068 | if (o->op_flags & OPf_KIDS) { |
79072805 | 5069 | OP* newop; |
a0d0e21e | 5070 | OP* kid; |
5dc0d613 MB |
5071 | OPCODE type = o->op_type; |
5072 | o = modkids(ck_fun(o), type); | |
11343788 | 5073 | kid = cUNOPo->op_first; |
a0d0e21e LW |
5074 | newop = kUNOP->op_first->op_sibling; |
5075 | if (newop && | |
5076 | (newop->op_sibling || | |
22c35a8c | 5077 | !(PL_opargs[newop->op_type] & OA_RETSCALAR) || |
a0d0e21e LW |
5078 | newop->op_type == OP_PADAV || newop->op_type == OP_PADHV || |
5079 | newop->op_type == OP_RV2AV || newop->op_type == OP_RV2HV)) { | |
aeea060c | 5080 | |
11343788 | 5081 | return o; |
a0d0e21e LW |
5082 | } |
5083 | op_free(kUNOP->op_first); | |
5084 | kUNOP->op_first = newop; | |
5085 | } | |
22c35a8c | 5086 | o->op_ppaddr = PL_ppaddr[++o->op_type]; |
11343788 | 5087 | return ck_fun(o); |
a0d0e21e LW |
5088 | } |
5089 | ||
5090 | OP * | |
cea2e8a9 | 5091 | Perl_ck_delete(pTHX_ OP *o) |
a0d0e21e | 5092 | { |
11343788 | 5093 | o = ck_fun(o); |
5dc0d613 | 5094 | o->op_private = 0; |
11343788 MB |
5095 | if (o->op_flags & OPf_KIDS) { |
5096 | OP *kid = cUNOPo->op_first; | |
01020589 GS |
5097 | switch (kid->op_type) { |
5098 | case OP_ASLICE: | |
5099 | o->op_flags |= OPf_SPECIAL; | |
5100 | /* FALL THROUGH */ | |
5101 | case OP_HSLICE: | |
5dc0d613 | 5102 | o->op_private |= OPpSLICE; |
01020589 GS |
5103 | break; |
5104 | case OP_AELEM: | |
5105 | o->op_flags |= OPf_SPECIAL; | |
5106 | /* FALL THROUGH */ | |
5107 | case OP_HELEM: | |
5108 | break; | |
5109 | default: | |
5110 | Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element or slice", | |
22c35a8c | 5111 | PL_op_desc[o->op_type]); |
01020589 | 5112 | } |
a0d0e21e | 5113 | null(kid); |
79072805 | 5114 | } |
11343788 | 5115 | return o; |
79072805 LW |
5116 | } |
5117 | ||
5118 | OP * | |
cea2e8a9 | 5119 | Perl_ck_eof(pTHX_ OP *o) |
79072805 | 5120 | { |
11343788 | 5121 | I32 type = o->op_type; |
79072805 | 5122 | |
11343788 MB |
5123 | if (o->op_flags & OPf_KIDS) { |
5124 | if (cLISTOPo->op_first->op_type == OP_STUB) { | |
5125 | op_free(o); | |
5126 | o = newUNOP(type, OPf_SPECIAL, | |
d58bf5aa | 5127 | newGVOP(OP_GV, 0, gv_fetchpv("main::ARGV", TRUE, SVt_PVAV))); |
8990e307 | 5128 | } |
11343788 | 5129 | return ck_fun(o); |
79072805 | 5130 | } |
11343788 | 5131 | return o; |
79072805 LW |
5132 | } |
5133 | ||
5134 | OP * | |
cea2e8a9 | 5135 | Perl_ck_eval(pTHX_ OP *o) |
79072805 | 5136 | { |
3280af22 | 5137 | PL_hints |= HINT_BLOCK_SCOPE; |
11343788 MB |
5138 | if (o->op_flags & OPf_KIDS) { |
5139 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
79072805 | 5140 | |
93a17b20 | 5141 | if (!kid) { |
11343788 MB |
5142 | o->op_flags &= ~OPf_KIDS; |
5143 | null(o); | |
79072805 LW |
5144 | } |
5145 | else if (kid->op_type == OP_LINESEQ) { | |
5146 | LOGOP *enter; | |
5147 | ||
11343788 MB |
5148 | kid->op_next = o->op_next; |
5149 | cUNOPo->op_first = 0; | |
5150 | op_free(o); | |
79072805 | 5151 | |
b7dc083c | 5152 | NewOp(1101, enter, 1, LOGOP); |
79072805 | 5153 | enter->op_type = OP_ENTERTRY; |
22c35a8c | 5154 | enter->op_ppaddr = PL_ppaddr[OP_ENTERTRY]; |
79072805 LW |
5155 | enter->op_private = 0; |
5156 | ||
5157 | /* establish postfix order */ | |
5158 | enter->op_next = (OP*)enter; | |
5159 | ||
11343788 MB |
5160 | o = prepend_elem(OP_LINESEQ, (OP*)enter, (OP*)kid); |
5161 | o->op_type = OP_LEAVETRY; | |
22c35a8c | 5162 | o->op_ppaddr = PL_ppaddr[OP_LEAVETRY]; |
11343788 MB |
5163 | enter->op_other = o; |
5164 | return o; | |
79072805 | 5165 | } |
c7cc6f1c | 5166 | else |
473986ff | 5167 | scalar((OP*)kid); |
79072805 LW |
5168 | } |
5169 | else { | |
11343788 | 5170 | op_free(o); |
54b9620d | 5171 | o = newUNOP(OP_ENTEREVAL, 0, newDEFSVOP()); |
79072805 | 5172 | } |
3280af22 | 5173 | o->op_targ = (PADOFFSET)PL_hints; |
11343788 | 5174 | return o; |
79072805 LW |
5175 | } |
5176 | ||
5177 | OP * | |
d98f61e7 GS |
5178 | Perl_ck_exit(pTHX_ OP *o) |
5179 | { | |
5180 | #ifdef VMS | |
5181 | HV *table = GvHV(PL_hintgv); | |
5182 | if (table) { | |
5183 | SV **svp = hv_fetch(table, "vmsish_exit", 11, FALSE); | |
5184 | if (svp && *svp && SvTRUE(*svp)) | |
5185 | o->op_private |= OPpEXIT_VMSISH; | |
5186 | } | |
5187 | #endif | |
5188 | return ck_fun(o); | |
5189 | } | |
5190 | ||
5191 | OP * | |
cea2e8a9 | 5192 | Perl_ck_exec(pTHX_ OP *o) |
79072805 LW |
5193 | { |
5194 | OP *kid; | |
11343788 MB |
5195 | if (o->op_flags & OPf_STACKED) { |
5196 | o = ck_fun(o); | |
5197 | kid = cUNOPo->op_first->op_sibling; | |
8990e307 LW |
5198 | if (kid->op_type == OP_RV2GV) |
5199 | null(kid); | |
79072805 | 5200 | } |
463ee0b2 | 5201 | else |
11343788 MB |
5202 | o = listkids(o); |
5203 | return o; | |
79072805 LW |
5204 | } |
5205 | ||
5206 | OP * | |
cea2e8a9 | 5207 | Perl_ck_exists(pTHX_ OP *o) |
5f05dabc | 5208 | { |
5196be3e MB |
5209 | o = ck_fun(o); |
5210 | if (o->op_flags & OPf_KIDS) { | |
5211 | OP *kid = cUNOPo->op_first; | |
afebc493 GS |
5212 | if (kid->op_type == OP_ENTERSUB) { |
5213 | (void) ref(kid, o->op_type); | |
5214 | if (kid->op_type != OP_RV2CV && !PL_error_count) | |
5215 | Perl_croak(aTHX_ "%s argument is not a subroutine name", | |
5216 | PL_op_desc[o->op_type]); | |
5217 | o->op_private |= OPpEXISTS_SUB; | |
5218 | } | |
5219 | else if (kid->op_type == OP_AELEM) | |
01020589 GS |
5220 | o->op_flags |= OPf_SPECIAL; |
5221 | else if (kid->op_type != OP_HELEM) | |
5222 | Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element", | |
5223 | PL_op_desc[o->op_type]); | |
5f05dabc | 5224 | null(kid); |
5225 | } | |
5196be3e | 5226 | return o; |
5f05dabc | 5227 | } |
5228 | ||
22c35a8c | 5229 | #if 0 |
5f05dabc | 5230 | OP * |
cea2e8a9 | 5231 | Perl_ck_gvconst(pTHX_ register OP *o) |
79072805 LW |
5232 | { |
5233 | o = fold_constants(o); | |
5234 | if (o->op_type == OP_CONST) | |
5235 | o->op_type = OP_GV; | |
5236 | return o; | |
5237 | } | |
22c35a8c | 5238 | #endif |
79072805 LW |
5239 | |
5240 | OP * | |
cea2e8a9 | 5241 | Perl_ck_rvconst(pTHX_ register OP *o) |
79072805 | 5242 | { |
11343788 MB |
5243 | dTHR; |
5244 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
85e6fe83 | 5245 | |
3280af22 | 5246 | o->op_private |= (PL_hints & HINT_STRICT_REFS); |
79072805 | 5247 | if (kid->op_type == OP_CONST) { |
44a8e56a | 5248 | char *name; |
5249 | int iscv; | |
5250 | GV *gv; | |
779c5bc9 | 5251 | SV *kidsv = kid->op_sv; |
2d8e6c8d | 5252 | STRLEN n_a; |
44a8e56a | 5253 | |
779c5bc9 GS |
5254 | /* Is it a constant from cv_const_sv()? */ |
5255 | if (SvROK(kidsv) && SvREADONLY(kidsv)) { | |
5256 | SV *rsv = SvRV(kidsv); | |
5257 | int svtype = SvTYPE(rsv); | |
5258 | char *badtype = Nullch; | |
5259 | ||
5260 | switch (o->op_type) { | |
5261 | case OP_RV2SV: | |
5262 | if (svtype > SVt_PVMG) | |
5263 | badtype = "a SCALAR"; | |
5264 | break; | |
5265 | case OP_RV2AV: | |
5266 | if (svtype != SVt_PVAV) | |
5267 | badtype = "an ARRAY"; | |
5268 | break; | |
5269 | case OP_RV2HV: | |
5270 | if (svtype != SVt_PVHV) { | |
5271 | if (svtype == SVt_PVAV) { /* pseudohash? */ | |
5272 | SV **ksv = av_fetch((AV*)rsv, 0, FALSE); | |
5273 | if (ksv && SvROK(*ksv) | |
5274 | && SvTYPE(SvRV(*ksv)) == SVt_PVHV) | |
5275 | { | |
5276 | break; | |
5277 | } | |
5278 | } | |
5279 | badtype = "a HASH"; | |
5280 | } | |
5281 | break; | |
5282 | case OP_RV2CV: | |
5283 | if (svtype != SVt_PVCV) | |
5284 | badtype = "a CODE"; | |
5285 | break; | |
5286 | } | |
5287 | if (badtype) | |
cea2e8a9 | 5288 | Perl_croak(aTHX_ "Constant is not %s reference", badtype); |
779c5bc9 GS |
5289 | return o; |
5290 | } | |
2d8e6c8d | 5291 | name = SvPV(kidsv, n_a); |
3280af22 | 5292 | if ((PL_hints & HINT_STRICT_REFS) && (kid->op_private & OPpCONST_BARE)) { |
44a8e56a | 5293 | char *badthing = Nullch; |
5dc0d613 | 5294 | switch (o->op_type) { |
44a8e56a | 5295 | case OP_RV2SV: |
5296 | badthing = "a SCALAR"; | |
5297 | break; | |
5298 | case OP_RV2AV: | |
5299 | badthing = "an ARRAY"; | |
5300 | break; | |
5301 | case OP_RV2HV: | |
5302 | badthing = "a HASH"; | |
5303 | break; | |
5304 | } | |
5305 | if (badthing) | |
cea2e8a9 | 5306 | Perl_croak(aTHX_ |
44a8e56a | 5307 | "Can't use bareword (\"%s\") as %s ref while \"strict refs\" in use", |
5308 | name, badthing); | |
5309 | } | |
93233ece CS |
5310 | /* |
5311 | * This is a little tricky. We only want to add the symbol if we | |
5312 | * didn't add it in the lexer. Otherwise we get duplicate strict | |
5313 | * warnings. But if we didn't add it in the lexer, we must at | |
5314 | * least pretend like we wanted to add it even if it existed before, | |
5315 | * or we get possible typo warnings. OPpCONST_ENTERED says | |
5316 | * whether the lexer already added THIS instance of this symbol. | |
5317 | */ | |
5196be3e | 5318 | iscv = (o->op_type == OP_RV2CV) * 2; |
93233ece | 5319 | do { |
44a8e56a | 5320 | gv = gv_fetchpv(name, |
748a9306 | 5321 | iscv | !(kid->op_private & OPpCONST_ENTERED), |
a0d0e21e LW |
5322 | iscv |
5323 | ? SVt_PVCV | |
11343788 | 5324 | : o->op_type == OP_RV2SV |
a0d0e21e | 5325 | ? SVt_PV |
11343788 | 5326 | : o->op_type == OP_RV2AV |
a0d0e21e | 5327 | ? SVt_PVAV |
11343788 | 5328 | : o->op_type == OP_RV2HV |
a0d0e21e LW |
5329 | ? SVt_PVHV |
5330 | : SVt_PVGV); | |
93233ece CS |
5331 | } while (!gv && !(kid->op_private & OPpCONST_ENTERED) && !iscv++); |
5332 | if (gv) { | |
5333 | kid->op_type = OP_GV; | |
5334 | SvREFCNT_dec(kid->op_sv); | |
350de78d | 5335 | #ifdef USE_ITHREADS |
638eceb6 | 5336 | /* XXX hack: dependence on sizeof(PADOP) <= sizeof(SVOP) */ |
350de78d | 5337 | kPADOP->op_padix = pad_alloc(OP_GV, SVs_PADTMP); |
743e66e6 | 5338 | GvIN_PAD_on(gv); |
350de78d GS |
5339 | PL_curpad[kPADOP->op_padix] = SvREFCNT_inc(gv); |
5340 | #else | |
93233ece | 5341 | kid->op_sv = SvREFCNT_inc(gv); |
350de78d | 5342 | #endif |
76cd736e | 5343 | kid->op_ppaddr = PL_ppaddr[OP_GV]; |
a0d0e21e | 5344 | } |
79072805 | 5345 | } |
11343788 | 5346 | return o; |
79072805 LW |
5347 | } |
5348 | ||
5349 | OP * | |
cea2e8a9 | 5350 | Perl_ck_ftst(pTHX_ OP *o) |
79072805 | 5351 | { |
11343788 MB |
5352 | dTHR; |
5353 | I32 type = o->op_type; | |
79072805 | 5354 | |
d0dca557 JD |
5355 | if (o->op_flags & OPf_REF) { |
5356 | /* nothing */ | |
5357 | } | |
5358 | else if (o->op_flags & OPf_KIDS && cUNOPo->op_first->op_type != OP_STUB) { | |
11343788 | 5359 | SVOP *kid = (SVOP*)cUNOPo->op_first; |
79072805 LW |
5360 | |
5361 | if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { | |
2d8e6c8d | 5362 | STRLEN n_a; |
a0d0e21e | 5363 | OP *newop = newGVOP(type, OPf_REF, |
2d8e6c8d | 5364 | gv_fetchpv(SvPVx(kid->op_sv, n_a), TRUE, SVt_PVIO)); |
11343788 | 5365 | op_free(o); |
d0dca557 | 5366 | o = newop; |
79072805 LW |
5367 | } |
5368 | } | |
5369 | else { | |
11343788 | 5370 | op_free(o); |
79072805 | 5371 | if (type == OP_FTTTY) |
d0dca557 | 5372 | o = newGVOP(type, OPf_REF, gv_fetchpv("main::STDIN", TRUE, |
85e6fe83 | 5373 | SVt_PVIO)); |
79072805 | 5374 | else |
d0dca557 | 5375 | o = newUNOP(type, 0, newDEFSVOP()); |
79072805 | 5376 | } |
d0dca557 JD |
5377 | #ifdef USE_LOCALE |
5378 | if (type == OP_FTTEXT || type == OP_FTBINARY) { | |
5379 | o->op_private = 0; | |
5380 | if (PL_hints & HINT_LOCALE) | |
5381 | o->op_private |= OPpLOCALE; | |
5382 | } | |
5383 | #endif | |
11343788 | 5384 | return o; |
79072805 LW |
5385 | } |
5386 | ||
5387 | OP * | |
cea2e8a9 | 5388 | Perl_ck_fun(pTHX_ OP *o) |
79072805 | 5389 | { |
11343788 | 5390 | dTHR; |
79072805 LW |
5391 | register OP *kid; |
5392 | OP **tokid; | |
5393 | OP *sibl; | |
5394 | I32 numargs = 0; | |
11343788 | 5395 | int type = o->op_type; |
22c35a8c | 5396 | register I32 oa = PL_opargs[type] >> OASHIFT; |
aeea060c | 5397 | |
11343788 | 5398 | if (o->op_flags & OPf_STACKED) { |
79072805 LW |
5399 | if ((oa & OA_OPTIONAL) && (oa >> 4) && !((oa >> 4) & OA_OPTIONAL)) |
5400 | oa &= ~OA_OPTIONAL; | |
5401 | else | |
11343788 | 5402 | return no_fh_allowed(o); |
79072805 LW |
5403 | } |
5404 | ||
11343788 | 5405 | if (o->op_flags & OPf_KIDS) { |
2d8e6c8d | 5406 | STRLEN n_a; |
11343788 MB |
5407 | tokid = &cLISTOPo->op_first; |
5408 | kid = cLISTOPo->op_first; | |
8990e307 | 5409 | if (kid->op_type == OP_PUSHMARK || |
155aba94 | 5410 | (kid->op_type == OP_NULL && kid->op_targ == OP_PUSHMARK)) |
8990e307 | 5411 | { |
79072805 LW |
5412 | tokid = &kid->op_sibling; |
5413 | kid = kid->op_sibling; | |
5414 | } | |
22c35a8c | 5415 | if (!kid && PL_opargs[type] & OA_DEFGV) |
54b9620d | 5416 | *tokid = kid = newDEFSVOP(); |
79072805 LW |
5417 | |
5418 | while (oa && kid) { | |
5419 | numargs++; | |
5420 | sibl = kid->op_sibling; | |
5421 | switch (oa & 7) { | |
5422 | case OA_SCALAR: | |
62c18ce2 GS |
5423 | /* list seen where single (scalar) arg expected? */ |
5424 | if (numargs == 1 && !(oa >> 4) | |
5425 | && kid->op_type == OP_LIST && type != OP_SCALAR) | |
5426 | { | |
5427 | return too_many_arguments(o,PL_op_desc[type]); | |
5428 | } | |
79072805 LW |
5429 | scalar(kid); |
5430 | break; | |
5431 | case OA_LIST: | |
5432 | if (oa < 16) { | |
5433 | kid = 0; | |
5434 | continue; | |
5435 | } | |
5436 | else | |
5437 | list(kid); | |
5438 | break; | |
5439 | case OA_AVREF: | |
5440 | if (kid->op_type == OP_CONST && | |
62c18ce2 GS |
5441 | (kid->op_private & OPpCONST_BARE)) |
5442 | { | |
2d8e6c8d | 5443 | char *name = SvPVx(((SVOP*)kid)->op_sv, n_a); |
79072805 | 5444 | OP *newop = newAVREF(newGVOP(OP_GV, 0, |
85e6fe83 | 5445 | gv_fetchpv(name, TRUE, SVt_PVAV) )); |
e476b1b5 GS |
5446 | if (ckWARN(WARN_DEPRECATED)) |
5447 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
57def98f | 5448 | "Array @%s missing the @ in argument %"IVdf" of %s()", |
cf2093f6 | 5449 | name, (IV)numargs, PL_op_desc[type]); |
79072805 LW |
5450 | op_free(kid); |
5451 | kid = newop; | |
5452 | kid->op_sibling = sibl; | |
5453 | *tokid = kid; | |
5454 | } | |
8990e307 | 5455 | else if (kid->op_type != OP_RV2AV && kid->op_type != OP_PADAV) |
35cd451c | 5456 | bad_type(numargs, "array", PL_op_desc[type], kid); |
a0d0e21e | 5457 | mod(kid, type); |
79072805 LW |
5458 | break; |
5459 | case OA_HVREF: | |
5460 | if (kid->op_type == OP_CONST && | |
62c18ce2 GS |
5461 | (kid->op_private & OPpCONST_BARE)) |
5462 | { | |
2d8e6c8d | 5463 | char *name = SvPVx(((SVOP*)kid)->op_sv, n_a); |
79072805 | 5464 | OP *newop = newHVREF(newGVOP(OP_GV, 0, |
85e6fe83 | 5465 | gv_fetchpv(name, TRUE, SVt_PVHV) )); |
e476b1b5 GS |
5466 | if (ckWARN(WARN_DEPRECATED)) |
5467 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
57def98f | 5468 | "Hash %%%s missing the %% in argument %"IVdf" of %s()", |
cf2093f6 | 5469 | name, (IV)numargs, PL_op_desc[type]); |
79072805 LW |
5470 | op_free(kid); |
5471 | kid = newop; | |
5472 | kid->op_sibling = sibl; | |
5473 | *tokid = kid; | |
5474 | } | |
8990e307 | 5475 | else if (kid->op_type != OP_RV2HV && kid->op_type != OP_PADHV) |
35cd451c | 5476 | bad_type(numargs, "hash", PL_op_desc[type], kid); |
a0d0e21e | 5477 | mod(kid, type); |
79072805 LW |
5478 | break; |
5479 | case OA_CVREF: | |
5480 | { | |
a0d0e21e | 5481 | OP *newop = newUNOP(OP_NULL, 0, kid); |
79072805 LW |
5482 | kid->op_sibling = 0; |
5483 | linklist(kid); | |
5484 | newop->op_next = newop; | |
5485 | kid = newop; | |
5486 | kid->op_sibling = sibl; | |
5487 | *tokid = kid; | |
5488 | } | |
5489 | break; | |
5490 | case OA_FILEREF: | |
c340be78 | 5491 | if (kid->op_type != OP_GV && kid->op_type != OP_RV2GV) { |
79072805 | 5492 | if (kid->op_type == OP_CONST && |
62c18ce2 GS |
5493 | (kid->op_private & OPpCONST_BARE)) |
5494 | { | |
79072805 | 5495 | OP *newop = newGVOP(OP_GV, 0, |
2d8e6c8d | 5496 | gv_fetchpv(SvPVx(((SVOP*)kid)->op_sv, n_a), TRUE, |
85e6fe83 | 5497 | SVt_PVIO) ); |
79072805 LW |
5498 | op_free(kid); |
5499 | kid = newop; | |
5500 | } | |
1ea32a52 GS |
5501 | else if (kid->op_type == OP_READLINE) { |
5502 | /* neophyte patrol: open(<FH>), close(<FH>) etc. */ | |
5503 | bad_type(numargs, "HANDLE", PL_op_desc[o->op_type], kid); | |
5504 | } | |
79072805 | 5505 | else { |
35cd451c | 5506 | I32 flags = OPf_SPECIAL; |
a6c40364 | 5507 | I32 priv = 0; |
2c8ac474 GS |
5508 | PADOFFSET targ = 0; |
5509 | ||
35cd451c | 5510 | /* is this op a FH constructor? */ |
853846ea | 5511 | if (is_handle_constructor(o,numargs)) { |
2c8ac474 GS |
5512 | char *name = Nullch; |
5513 | STRLEN len; | |
5514 | ||
5515 | flags = 0; | |
5516 | /* Set a flag to tell rv2gv to vivify | |
853846ea NIS |
5517 | * need to "prove" flag does not mean something |
5518 | * else already - NI-S 1999/05/07 | |
2c8ac474 GS |
5519 | */ |
5520 | priv = OPpDEREF; | |
5521 | if (kid->op_type == OP_PADSV) { | |
5522 | SV **namep = av_fetch(PL_comppad_name, | |
5523 | kid->op_targ, 4); | |
5524 | if (namep && *namep) | |
5525 | name = SvPV(*namep, len); | |
5526 | } | |
5527 | else if (kid->op_type == OP_RV2SV | |
5528 | && kUNOP->op_first->op_type == OP_GV) | |
5529 | { | |
5530 | GV *gv = cGVOPx_gv(kUNOP->op_first); | |
5531 | name = GvNAME(gv); | |
5532 | len = GvNAMELEN(gv); | |
5533 | } | |
afd1915d GS |
5534 | else if (kid->op_type == OP_AELEM |
5535 | || kid->op_type == OP_HELEM) | |
5536 | { | |
5537 | name = "__ANONIO__"; | |
5538 | len = 10; | |
5539 | mod(kid,type); | |
5540 | } | |
2c8ac474 GS |
5541 | if (name) { |
5542 | SV *namesv; | |
5543 | targ = pad_alloc(OP_RV2GV, SVs_PADTMP); | |
5544 | namesv = PL_curpad[targ]; | |
155aba94 | 5545 | (void)SvUPGRADE(namesv, SVt_PV); |
2c8ac474 GS |
5546 | if (*name != '$') |
5547 | sv_setpvn(namesv, "$", 1); | |
5548 | sv_catpvn(namesv, name, len); | |
5549 | } | |
853846ea | 5550 | } |
79072805 | 5551 | kid->op_sibling = 0; |
35cd451c | 5552 | kid = newUNOP(OP_RV2GV, flags, scalar(kid)); |
2c8ac474 GS |
5553 | kid->op_targ = targ; |
5554 | kid->op_private |= priv; | |
79072805 LW |
5555 | } |
5556 | kid->op_sibling = sibl; | |
5557 | *tokid = kid; | |
5558 | } | |
5559 | scalar(kid); | |
5560 | break; | |
5561 | case OA_SCALARREF: | |
a0d0e21e | 5562 | mod(scalar(kid), type); |
79072805 LW |
5563 | break; |
5564 | } | |
5565 | oa >>= 4; | |
5566 | tokid = &kid->op_sibling; | |
5567 | kid = kid->op_sibling; | |
5568 | } | |
11343788 | 5569 | o->op_private |= numargs; |
79072805 | 5570 | if (kid) |
22c35a8c | 5571 | return too_many_arguments(o,PL_op_desc[o->op_type]); |
11343788 | 5572 | listkids(o); |
79072805 | 5573 | } |
22c35a8c | 5574 | else if (PL_opargs[type] & OA_DEFGV) { |
11343788 | 5575 | op_free(o); |
54b9620d | 5576 | return newUNOP(type, 0, newDEFSVOP()); |
a0d0e21e LW |
5577 | } |
5578 | ||
79072805 LW |
5579 | if (oa) { |
5580 | while (oa & OA_OPTIONAL) | |
5581 | oa >>= 4; | |
5582 | if (oa && oa != OA_LIST) | |
22c35a8c | 5583 | return too_few_arguments(o,PL_op_desc[o->op_type]); |
79072805 | 5584 | } |
11343788 | 5585 | return o; |
79072805 LW |
5586 | } |
5587 | ||
5588 | OP * | |
cea2e8a9 | 5589 | Perl_ck_glob(pTHX_ OP *o) |
79072805 | 5590 | { |
fb73857a | 5591 | GV *gv; |
5592 | ||
649da076 | 5593 | o = ck_fun(o); |
1f2bfc8a | 5594 | if ((o->op_flags & OPf_KIDS) && !cLISTOPo->op_first->op_sibling) |
54b9620d | 5595 | append_elem(OP_GLOB, o, newDEFSVOP()); |
fb73857a | 5596 | |
5597 | if (!((gv = gv_fetchpv("glob", FALSE, SVt_PVCV)) && GvIMPORTED_CV(gv))) | |
5598 | gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); | |
b1cb66bf | 5599 | |
52bb0670 | 5600 | #if !defined(PERL_EXTERNAL_GLOB) |
72b16652 GS |
5601 | /* XXX this can be tightened up and made more failsafe. */ |
5602 | if (!gv) { | |
72b16652 | 5603 | ENTER; |
e4783991 GS |
5604 | Perl_load_module(aTHX_ 0, newSVpvn("File::Glob", 10), Nullsv, |
5605 | /* null-terminated import list */ | |
5606 | newSVpvn(":globally", 9), Nullsv); | |
72b16652 GS |
5607 | gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); |
5608 | LEAVE; | |
5609 | } | |
52bb0670 | 5610 | #endif /* PERL_EXTERNAL_GLOB */ |
72b16652 | 5611 | |
b1cb66bf | 5612 | if (gv && GvIMPORTED_CV(gv)) { |
5196be3e | 5613 | append_elem(OP_GLOB, o, |
80252599 | 5614 | newSVOP(OP_CONST, 0, newSViv(PL_glob_index++))); |
1f2bfc8a | 5615 | o->op_type = OP_LIST; |
22c35a8c | 5616 | o->op_ppaddr = PL_ppaddr[OP_LIST]; |
1f2bfc8a | 5617 | cLISTOPo->op_first->op_type = OP_PUSHMARK; |
22c35a8c | 5618 | cLISTOPo->op_first->op_ppaddr = PL_ppaddr[OP_PUSHMARK]; |
1f2bfc8a | 5619 | o = newUNOP(OP_ENTERSUB, OPf_STACKED, |
aeea060c | 5620 | append_elem(OP_LIST, o, |
1f2bfc8a MB |
5621 | scalar(newUNOP(OP_RV2CV, 0, |
5622 | newGVOP(OP_GV, 0, gv))))); | |
d58bf5aa MB |
5623 | o = newUNOP(OP_NULL, 0, ck_subr(o)); |
5624 | o->op_targ = OP_GLOB; /* hint at what it used to be */ | |
5625 | return o; | |
b1cb66bf | 5626 | } |
5627 | gv = newGVgen("main"); | |
a0d0e21e | 5628 | gv_IOadd(gv); |
11343788 MB |
5629 | append_elem(OP_GLOB, o, newGVOP(OP_GV, 0, gv)); |
5630 | scalarkids(o); | |
649da076 | 5631 | return o; |
79072805 LW |
5632 | } |
5633 | ||
5634 | OP * | |
cea2e8a9 | 5635 | Perl_ck_grep(pTHX_ OP *o) |
79072805 LW |
5636 | { |
5637 | LOGOP *gwop; | |
5638 | OP *kid; | |
11343788 | 5639 | OPCODE type = o->op_type == OP_GREPSTART ? OP_GREPWHILE : OP_MAPWHILE; |
79072805 | 5640 | |
22c35a8c | 5641 | o->op_ppaddr = PL_ppaddr[OP_GREPSTART]; |
b7dc083c | 5642 | NewOp(1101, gwop, 1, LOGOP); |
aeea060c | 5643 | |
11343788 | 5644 | if (o->op_flags & OPf_STACKED) { |
a0d0e21e | 5645 | OP* k; |
11343788 MB |
5646 | o = ck_sort(o); |
5647 | kid = cLISTOPo->op_first->op_sibling; | |
5648 | for (k = cLISTOPo->op_first->op_sibling->op_next; k; k = k->op_next) { | |
a0d0e21e LW |
5649 | kid = k; |
5650 | } | |
5651 | kid->op_next = (OP*)gwop; | |
11343788 | 5652 | o->op_flags &= ~OPf_STACKED; |
93a17b20 | 5653 | } |
11343788 | 5654 | kid = cLISTOPo->op_first->op_sibling; |
a0d0e21e LW |
5655 | if (type == OP_MAPWHILE) |
5656 | list(kid); | |
5657 | else | |
5658 | scalar(kid); | |
11343788 | 5659 | o = ck_fun(o); |
3280af22 | 5660 | if (PL_error_count) |
11343788 | 5661 | return o; |
aeea060c | 5662 | kid = cLISTOPo->op_first->op_sibling; |
79072805 | 5663 | if (kid->op_type != OP_NULL) |
cea2e8a9 | 5664 | Perl_croak(aTHX_ "panic: ck_grep"); |
79072805 LW |
5665 | kid = kUNOP->op_first; |
5666 | ||
a0d0e21e | 5667 | gwop->op_type = type; |
22c35a8c | 5668 | gwop->op_ppaddr = PL_ppaddr[type]; |
11343788 | 5669 | gwop->op_first = listkids(o); |
79072805 LW |
5670 | gwop->op_flags |= OPf_KIDS; |
5671 | gwop->op_private = 1; | |
5672 | gwop->op_other = LINKLIST(kid); | |
a0d0e21e | 5673 | gwop->op_targ = pad_alloc(type, SVs_PADTMP); |
79072805 LW |
5674 | kid->op_next = (OP*)gwop; |
5675 | ||
11343788 | 5676 | kid = cLISTOPo->op_first->op_sibling; |
a0d0e21e | 5677 | if (!kid || !kid->op_sibling) |
22c35a8c | 5678 | return too_few_arguments(o,PL_op_desc[o->op_type]); |
a0d0e21e LW |
5679 | for (kid = kid->op_sibling; kid; kid = kid->op_sibling) |
5680 | mod(kid, OP_GREPSTART); | |
5681 | ||
79072805 LW |
5682 | return (OP*)gwop; |
5683 | } | |
5684 | ||
5685 | OP * | |
cea2e8a9 | 5686 | Perl_ck_index(pTHX_ OP *o) |
79072805 | 5687 | { |
11343788 MB |
5688 | if (o->op_flags & OPf_KIDS) { |
5689 | OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
0b71040e LW |
5690 | if (kid) |
5691 | kid = kid->op_sibling; /* get past "big" */ | |
79072805 | 5692 | if (kid && kid->op_type == OP_CONST) |
2779dcf1 | 5693 | fbm_compile(((SVOP*)kid)->op_sv, 0); |
79072805 | 5694 | } |
11343788 | 5695 | return ck_fun(o); |
79072805 LW |
5696 | } |
5697 | ||
5698 | OP * | |
cea2e8a9 | 5699 | Perl_ck_lengthconst(pTHX_ OP *o) |
79072805 LW |
5700 | { |
5701 | /* XXX length optimization goes here */ | |
11343788 | 5702 | return ck_fun(o); |
79072805 LW |
5703 | } |
5704 | ||
5705 | OP * | |
cea2e8a9 | 5706 | Perl_ck_lfun(pTHX_ OP *o) |
79072805 | 5707 | { |
5dc0d613 MB |
5708 | OPCODE type = o->op_type; |
5709 | return modkids(ck_fun(o), type); | |
79072805 LW |
5710 | } |
5711 | ||
5712 | OP * | |
cea2e8a9 | 5713 | Perl_ck_defined(pTHX_ OP *o) /* 19990527 MJD */ |
69794302 | 5714 | { |
20ce7b12 | 5715 | dTHR; |
d0334bed GS |
5716 | if ((o->op_flags & OPf_KIDS) && ckWARN(WARN_DEPRECATED)) { |
5717 | switch (cUNOPo->op_first->op_type) { | |
5718 | case OP_RV2AV: | |
7e291ef1 | 5719 | break; /* Globals via GV can be undef */ |
d0334bed GS |
5720 | case OP_PADAV: |
5721 | case OP_AASSIGN: /* Is this a good idea? */ | |
5722 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
f10b0346 | 5723 | "defined(@array) is deprecated"); |
d0334bed | 5724 | Perl_warner(aTHX_ WARN_DEPRECATED, |
cc507455 | 5725 | "\t(Maybe you should just omit the defined()?)\n"); |
69794302 | 5726 | break; |
d0334bed | 5727 | case OP_RV2HV: |
7e291ef1 | 5728 | break; /* Globals via GV can be undef */ |
d0334bed GS |
5729 | case OP_PADHV: |
5730 | Perl_warner(aTHX_ WARN_DEPRECATED, | |
894356b3 | 5731 | "defined(%%hash) is deprecated"); |
d0334bed | 5732 | Perl_warner(aTHX_ WARN_DEPRECATED, |
cc507455 | 5733 | "\t(Maybe you should just omit the defined()?)\n"); |
d0334bed GS |
5734 | break; |
5735 | default: | |
5736 | /* no warning */ | |
5737 | break; | |
5738 | } | |
69794302 MJD |
5739 | } |
5740 | return ck_rfun(o); | |
5741 | } | |
5742 | ||
5743 | OP * | |
cea2e8a9 | 5744 | Perl_ck_rfun(pTHX_ OP *o) |
8990e307 | 5745 | { |
5dc0d613 MB |
5746 | OPCODE type = o->op_type; |
5747 | return refkids(ck_fun(o), type); | |
8990e307 LW |
5748 | } |
5749 | ||
5750 | OP * | |
cea2e8a9 | 5751 | Perl_ck_listiob(pTHX_ OP *o) |
79072805 LW |
5752 | { |
5753 | register OP *kid; | |
aeea060c | 5754 | |
11343788 | 5755 | kid = cLISTOPo->op_first; |
79072805 | 5756 | if (!kid) { |
11343788 MB |
5757 | o = force_list(o); |
5758 | kid = cLISTOPo->op_first; | |
79072805 LW |
5759 | } |
5760 | if (kid->op_type == OP_PUSHMARK) | |
5761 | kid = kid->op_sibling; | |
11343788 | 5762 | if (kid && o->op_flags & OPf_STACKED) |
79072805 LW |
5763 | kid = kid->op_sibling; |
5764 | else if (kid && !kid->op_sibling) { /* print HANDLE; */ | |
5765 | if (kid->op_type == OP_CONST && kid->op_private & OPpCONST_BARE) { | |
11343788 | 5766 | o->op_flags |= OPf_STACKED; /* make it a filehandle */ |
748a9306 | 5767 | kid = newUNOP(OP_RV2GV, OPf_REF, scalar(kid)); |
11343788 MB |
5768 | cLISTOPo->op_first->op_sibling = kid; |
5769 | cLISTOPo->op_last = kid; | |
79072805 LW |
5770 | kid = kid->op_sibling; |
5771 | } | |
5772 | } | |
5773 | ||
5774 | if (!kid) | |
54b9620d | 5775 | append_elem(o->op_type, o, newDEFSVOP()); |
79072805 | 5776 | |
5dc0d613 | 5777 | o = listkids(o); |
bbce6d69 | 5778 | |
5dc0d613 | 5779 | o->op_private = 0; |
36477c24 | 5780 | #ifdef USE_LOCALE |
3280af22 | 5781 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5782 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5783 | #endif |
5784 | ||
5dc0d613 | 5785 | return o; |
bbce6d69 | 5786 | } |
5787 | ||
5788 | OP * | |
cea2e8a9 | 5789 | Perl_ck_fun_locale(pTHX_ OP *o) |
bbce6d69 | 5790 | { |
5dc0d613 | 5791 | o = ck_fun(o); |
bbce6d69 | 5792 | |
5dc0d613 | 5793 | o->op_private = 0; |
36477c24 | 5794 | #ifdef USE_LOCALE |
3280af22 | 5795 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5796 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5797 | #endif |
5798 | ||
5dc0d613 | 5799 | return o; |
bbce6d69 | 5800 | } |
5801 | ||
5802 | OP * | |
b162f9ea IZ |
5803 | Perl_ck_sassign(pTHX_ OP *o) |
5804 | { | |
5805 | OP *kid = cLISTOPo->op_first; | |
5806 | /* has a disposable target? */ | |
5807 | if ((PL_opargs[kid->op_type] & OA_TARGLEX) | |
6b66af17 GS |
5808 | && !(kid->op_flags & OPf_STACKED) |
5809 | /* Cannot steal the second time! */ | |
5810 | && !(kid->op_private & OPpTARGET_MY)) | |
b162f9ea IZ |
5811 | { |
5812 | OP *kkid = kid->op_sibling; | |
5813 | ||
5814 | /* Can just relocate the target. */ | |
2c2d71f5 JH |
5815 | if (kkid && kkid->op_type == OP_PADSV |
5816 | && !(kkid->op_private & OPpLVAL_INTRO)) | |
5817 | { | |
b162f9ea | 5818 | kid->op_targ = kkid->op_targ; |
743e66e6 | 5819 | kkid->op_targ = 0; |
b162f9ea IZ |
5820 | /* Now we do not need PADSV and SASSIGN. */ |
5821 | kid->op_sibling = o->op_sibling; /* NULL */ | |
5822 | cLISTOPo->op_first = NULL; | |
5823 | op_free(o); | |
5824 | op_free(kkid); | |
5825 | kid->op_private |= OPpTARGET_MY; /* Used for context settings */ | |
5826 | return kid; | |
5827 | } | |
5828 | } | |
5829 | return o; | |
5830 | } | |
5831 | ||
5832 | OP * | |
cea2e8a9 | 5833 | Perl_ck_scmp(pTHX_ OP *o) |
bbce6d69 | 5834 | { |
5dc0d613 | 5835 | o->op_private = 0; |
36477c24 | 5836 | #ifdef USE_LOCALE |
3280af22 | 5837 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 5838 | o->op_private |= OPpLOCALE; |
bbce6d69 | 5839 | #endif |
36477c24 | 5840 | |
5dc0d613 | 5841 | return o; |
79072805 LW |
5842 | } |
5843 | ||
5844 | OP * | |
cea2e8a9 | 5845 | Perl_ck_match(pTHX_ OP *o) |
79072805 | 5846 | { |
5dc0d613 | 5847 | o->op_private |= OPpRUNTIME; |
11343788 | 5848 | return o; |
79072805 LW |
5849 | } |
5850 | ||
5851 | OP * | |
f5d5a27c CS |
5852 | Perl_ck_method(pTHX_ OP *o) |
5853 | { | |
5854 | OP *kid = cUNOPo->op_first; | |
5855 | if (kid->op_type == OP_CONST) { | |
5856 | SV* sv = kSVOP->op_sv; | |
5857 | if (!(strchr(SvPVX(sv), ':') || strchr(SvPVX(sv), '\''))) { | |
5858 | OP *cmop; | |
155aba94 GS |
5859 | (void)SvUPGRADE(sv, SVt_PVIV); |
5860 | (void)SvIOK_on(sv); | |
f5d5a27c CS |
5861 | PERL_HASH(SvUVX(sv), SvPVX(sv), SvCUR(sv)); |
5862 | cmop = newSVOP(OP_METHOD_NAMED, 0, sv); | |
5863 | kSVOP->op_sv = Nullsv; | |
5864 | op_free(o); | |
5865 | return cmop; | |
5866 | } | |
5867 | } | |
5868 | return o; | |
5869 | } | |
5870 | ||
5871 | OP * | |
cea2e8a9 | 5872 | Perl_ck_null(pTHX_ OP *o) |
79072805 | 5873 | { |
11343788 | 5874 | return o; |
79072805 LW |
5875 | } |
5876 | ||
5877 | OP * | |
16fe6d59 GS |
5878 | Perl_ck_open(pTHX_ OP *o) |
5879 | { | |
5880 | HV *table = GvHV(PL_hintgv); | |
5881 | if (table) { | |
5882 | SV **svp; | |
5883 | I32 mode; | |
5884 | svp = hv_fetch(table, "open_IN", 7, FALSE); | |
5885 | if (svp && *svp) { | |
5886 | mode = mode_from_discipline(*svp); | |
5887 | if (mode & O_BINARY) | |
5888 | o->op_private |= OPpOPEN_IN_RAW; | |
5889 | else if (mode & O_TEXT) | |
5890 | o->op_private |= OPpOPEN_IN_CRLF; | |
5891 | } | |
5892 | ||
5893 | svp = hv_fetch(table, "open_OUT", 8, FALSE); | |
5894 | if (svp && *svp) { | |
5895 | mode = mode_from_discipline(*svp); | |
5896 | if (mode & O_BINARY) | |
5897 | o->op_private |= OPpOPEN_OUT_RAW; | |
5898 | else if (mode & O_TEXT) | |
5899 | o->op_private |= OPpOPEN_OUT_CRLF; | |
5900 | } | |
5901 | } | |
5902 | if (o->op_type == OP_BACKTICK) | |
5903 | return o; | |
5904 | return ck_fun(o); | |
5905 | } | |
5906 | ||
5907 | OP * | |
cea2e8a9 | 5908 | Perl_ck_repeat(pTHX_ OP *o) |
79072805 | 5909 | { |
11343788 MB |
5910 | if (cBINOPo->op_first->op_flags & OPf_PARENS) { |
5911 | o->op_private |= OPpREPEAT_DOLIST; | |
5912 | cBINOPo->op_first = force_list(cBINOPo->op_first); | |
79072805 LW |
5913 | } |
5914 | else | |
11343788 MB |
5915 | scalar(o); |
5916 | return o; | |
79072805 LW |
5917 | } |
5918 | ||
5919 | OP * | |
cea2e8a9 | 5920 | Perl_ck_require(pTHX_ OP *o) |
8990e307 | 5921 | { |
11343788 MB |
5922 | if (o->op_flags & OPf_KIDS) { /* Shall we supply missing .pm? */ |
5923 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
8990e307 LW |
5924 | |
5925 | if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { | |
8990e307 | 5926 | char *s; |
a0d0e21e LW |
5927 | for (s = SvPVX(kid->op_sv); *s; s++) { |
5928 | if (*s == ':' && s[1] == ':') { | |
5929 | *s = '/'; | |
1aef975c | 5930 | Move(s+2, s+1, strlen(s+2)+1, char); |
a0d0e21e LW |
5931 | --SvCUR(kid->op_sv); |
5932 | } | |
8990e307 | 5933 | } |
ce3b816e GS |
5934 | if (SvREADONLY(kid->op_sv)) { |
5935 | SvREADONLY_off(kid->op_sv); | |
5936 | sv_catpvn(kid->op_sv, ".pm", 3); | |
5937 | SvREADONLY_on(kid->op_sv); | |
5938 | } | |
5939 | else | |
5940 | sv_catpvn(kid->op_sv, ".pm", 3); | |
8990e307 LW |
5941 | } |
5942 | } | |
11343788 | 5943 | return ck_fun(o); |
8990e307 LW |
5944 | } |
5945 | ||
22c35a8c | 5946 | #if 0 |
8990e307 | 5947 | OP * |
cea2e8a9 | 5948 | Perl_ck_retarget(pTHX_ OP *o) |
79072805 | 5949 | { |
cea2e8a9 | 5950 | Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__); |
79072805 | 5951 | /* STUB */ |
11343788 | 5952 | return o; |
79072805 | 5953 | } |
22c35a8c | 5954 | #endif |
79072805 LW |
5955 | |
5956 | OP * | |
cea2e8a9 | 5957 | Perl_ck_select(pTHX_ OP *o) |
79072805 | 5958 | { |
c07a80fd | 5959 | OP* kid; |
11343788 MB |
5960 | if (o->op_flags & OPf_KIDS) { |
5961 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
2304df62 | 5962 | if (kid && kid->op_sibling) { |
11343788 | 5963 | o->op_type = OP_SSELECT; |
22c35a8c | 5964 | o->op_ppaddr = PL_ppaddr[OP_SSELECT]; |
11343788 MB |
5965 | o = ck_fun(o); |
5966 | return fold_constants(o); | |
79072805 LW |
5967 | } |
5968 | } | |
11343788 MB |
5969 | o = ck_fun(o); |
5970 | kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ | |
c07a80fd | 5971 | if (kid && kid->op_type == OP_RV2GV) |
5972 | kid->op_private &= ~HINT_STRICT_REFS; | |
11343788 | 5973 | return o; |
79072805 LW |
5974 | } |
5975 | ||
5976 | OP * | |
cea2e8a9 | 5977 | Perl_ck_shift(pTHX_ OP *o) |
79072805 | 5978 | { |
11343788 | 5979 | I32 type = o->op_type; |
79072805 | 5980 | |
11343788 | 5981 | if (!(o->op_flags & OPf_KIDS)) { |
6d4ff0d2 MB |
5982 | OP *argop; |
5983 | ||
11343788 | 5984 | op_free(o); |
6d4ff0d2 | 5985 | #ifdef USE_THREADS |
533c011a | 5986 | if (!CvUNIQUE(PL_compcv)) { |
6d4ff0d2 | 5987 | argop = newOP(OP_PADAV, OPf_REF); |
6b88bc9c | 5988 | argop->op_targ = 0; /* PL_curpad[0] is @_ */ |
6d4ff0d2 MB |
5989 | } |
5990 | else { | |
5991 | argop = newUNOP(OP_RV2AV, 0, | |
5992 | scalar(newGVOP(OP_GV, 0, | |
5993 | gv_fetchpv("ARGV", TRUE, SVt_PVAV)))); | |
5994 | } | |
5995 | #else | |
5996 | argop = newUNOP(OP_RV2AV, 0, | |
3280af22 NIS |
5997 | scalar(newGVOP(OP_GV, 0, !CvUNIQUE(PL_compcv) ? |
5998 | PL_defgv : gv_fetchpv("ARGV", TRUE, SVt_PVAV)))); | |
6d4ff0d2 MB |
5999 | #endif /* USE_THREADS */ |
6000 | return newUNOP(type, 0, scalar(argop)); | |
79072805 | 6001 | } |
11343788 | 6002 | return scalar(modkids(ck_fun(o), type)); |
79072805 LW |
6003 | } |
6004 | ||
6005 | OP * | |
cea2e8a9 | 6006 | Perl_ck_sort(pTHX_ OP *o) |
79072805 | 6007 | { |
8e3f9bdf | 6008 | OP *firstkid; |
5dc0d613 | 6009 | o->op_private = 0; |
36477c24 | 6010 | #ifdef USE_LOCALE |
3280af22 | 6011 | if (PL_hints & HINT_LOCALE) |
5dc0d613 | 6012 | o->op_private |= OPpLOCALE; |
bbce6d69 | 6013 | #endif |
6014 | ||
9ea6e965 | 6015 | if (o->op_type == OP_SORT && o->op_flags & OPf_STACKED) |
51a19bc0 | 6016 | simplify_sort(o); |
8e3f9bdf GS |
6017 | firstkid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
6018 | if (o->op_flags & OPf_STACKED) { /* may have been cleared */ | |
463ee0b2 | 6019 | OP *k; |
8e3f9bdf | 6020 | OP *kid = cUNOPx(firstkid)->op_first; /* get past null */ |
79072805 | 6021 | |
463ee0b2 | 6022 | if (kid->op_type == OP_SCOPE || kid->op_type == OP_LEAVE) { |
79072805 | 6023 | linklist(kid); |
463ee0b2 LW |
6024 | if (kid->op_type == OP_SCOPE) { |
6025 | k = kid->op_next; | |
6026 | kid->op_next = 0; | |
79072805 | 6027 | } |
463ee0b2 | 6028 | else if (kid->op_type == OP_LEAVE) { |
11343788 | 6029 | if (o->op_type == OP_SORT) { |
748a9306 LW |
6030 | null(kid); /* wipe out leave */ |
6031 | kid->op_next = kid; | |
463ee0b2 | 6032 | |
748a9306 LW |
6033 | for (k = kLISTOP->op_first->op_next; k; k = k->op_next) { |
6034 | if (k->op_next == kid) | |
6035 | k->op_next = 0; | |
71a29c3c GS |
6036 | /* don't descend into loops */ |
6037 | else if (k->op_type == OP_ENTERLOOP | |
6038 | || k->op_type == OP_ENTERITER) | |
6039 | { | |
6040 | k = cLOOPx(k)->op_lastop; | |
6041 | } | |
748a9306 | 6042 | } |
463ee0b2 | 6043 | } |
748a9306 LW |
6044 | else |
6045 | kid->op_next = 0; /* just disconnect the leave */ | |
a0d0e21e | 6046 | k = kLISTOP->op_first; |
463ee0b2 | 6047 | } |
a0d0e21e LW |
6048 | peep(k); |
6049 | ||
8e3f9bdf GS |
6050 | kid = firstkid; |
6051 | if (o->op_type == OP_SORT) { | |
6052 | /* provide scalar context for comparison function/block */ | |
6053 | kid = scalar(kid); | |
a0d0e21e | 6054 | kid->op_next = kid; |
8e3f9bdf | 6055 | } |
a0d0e21e LW |
6056 | else |
6057 | kid->op_next = k; | |
11343788 | 6058 | o->op_flags |= OPf_SPECIAL; |
79072805 | 6059 | } |
c6e96bcb | 6060 | else if (kid->op_type == OP_RV2SV || kid->op_type == OP_PADSV) |
8e3f9bdf GS |
6061 | null(firstkid); |
6062 | ||
6063 | firstkid = firstkid->op_sibling; | |
79072805 | 6064 | } |
bbce6d69 | 6065 | |
8e3f9bdf GS |
6066 | /* provide list context for arguments */ |
6067 | if (o->op_type == OP_SORT) | |
6068 | list(firstkid); | |
6069 | ||
11343788 | 6070 | return o; |
79072805 | 6071 | } |
bda4119b GS |
6072 | |
6073 | STATIC void | |
cea2e8a9 | 6074 | S_simplify_sort(pTHX_ OP *o) |
9c007264 | 6075 | { |
51a19bc0 | 6076 | dTHR; |
9c007264 JH |
6077 | register OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ |
6078 | OP *k; | |
6079 | int reversed; | |
350de78d | 6080 | GV *gv; |
9c007264 JH |
6081 | if (!(o->op_flags & OPf_STACKED)) |
6082 | return; | |
9ea6e965 GS |
6083 | GvMULTI_on(gv_fetchpv("a", TRUE, SVt_PV)); |
6084 | GvMULTI_on(gv_fetchpv("b", TRUE, SVt_PV)); | |
82092f1d | 6085 | kid = kUNOP->op_first; /* get past null */ |
9c007264 JH |
6086 | if (kid->op_type != OP_SCOPE) |
6087 | return; | |
6088 | kid = kLISTOP->op_last; /* get past scope */ | |
6089 | switch(kid->op_type) { | |
6090 | case OP_NCMP: | |
6091 | case OP_I_NCMP: | |
6092 | case OP_SCMP: | |
6093 | break; | |
6094 | default: | |
6095 | return; | |
6096 | } | |
6097 | k = kid; /* remember this node*/ | |
6098 | if (kBINOP->op_first->op_type != OP_RV2SV) | |
6099 | return; | |
6100 | kid = kBINOP->op_first; /* get past cmp */ | |
6101 | if (kUNOP->op_first->op_type != OP_GV) | |
6102 | return; | |
6103 | kid = kUNOP->op_first; /* get past rv2sv */ | |
638eceb6 | 6104 | gv = kGVOP_gv; |
350de78d | 6105 | if (GvSTASH(gv) != PL_curstash) |
9c007264 | 6106 | return; |
350de78d | 6107 | if (strEQ(GvNAME(gv), "a")) |
9c007264 | 6108 | reversed = 0; |
0f79a09d | 6109 | else if (strEQ(GvNAME(gv), "b")) |
9c007264 JH |
6110 | reversed = 1; |
6111 | else | |
6112 | return; | |
6113 | kid = k; /* back to cmp */ | |
6114 | if (kBINOP->op_last->op_type != OP_RV2SV) | |
6115 | return; | |
6116 | kid = kBINOP->op_last; /* down to 2nd arg */ | |
6117 | if (kUNOP->op_first->op_type != OP_GV) | |
6118 | return; | |
6119 | kid = kUNOP->op_first; /* get past rv2sv */ | |
638eceb6 | 6120 | gv = kGVOP_gv; |
350de78d | 6121 | if (GvSTASH(gv) != PL_curstash |
9c007264 | 6122 | || ( reversed |
350de78d GS |
6123 | ? strNE(GvNAME(gv), "a") |
6124 | : strNE(GvNAME(gv), "b"))) | |
9c007264 JH |
6125 | return; |
6126 | o->op_flags &= ~(OPf_STACKED | OPf_SPECIAL); | |
6127 | if (reversed) | |
6128 | o->op_private |= OPpSORT_REVERSE; | |
6129 | if (k->op_type == OP_NCMP) | |
6130 | o->op_private |= OPpSORT_NUMERIC; | |
6131 | if (k->op_type == OP_I_NCMP) | |
6132 | o->op_private |= OPpSORT_NUMERIC | OPpSORT_INTEGER; | |
e507f050 SM |
6133 | kid = cLISTOPo->op_first->op_sibling; |
6134 | cLISTOPo->op_first->op_sibling = kid->op_sibling; /* bypass old block */ | |
6135 | op_free(kid); /* then delete it */ | |
6136 | cLISTOPo->op_children--; | |
9c007264 | 6137 | } |
79072805 LW |
6138 | |
6139 | OP * | |
cea2e8a9 | 6140 | Perl_ck_split(pTHX_ OP *o) |
79072805 LW |
6141 | { |
6142 | register OP *kid; | |
aeea060c | 6143 | |
11343788 MB |
6144 | if (o->op_flags & OPf_STACKED) |
6145 | return no_fh_allowed(o); | |
79072805 | 6146 | |
11343788 | 6147 | kid = cLISTOPo->op_first; |
8990e307 | 6148 | if (kid->op_type != OP_NULL) |
cea2e8a9 | 6149 | Perl_croak(aTHX_ "panic: ck_split"); |
8990e307 | 6150 | kid = kid->op_sibling; |
11343788 MB |
6151 | op_free(cLISTOPo->op_first); |
6152 | cLISTOPo->op_first = kid; | |
85e6fe83 | 6153 | if (!kid) { |
79cb57f6 | 6154 | cLISTOPo->op_first = kid = newSVOP(OP_CONST, 0, newSVpvn(" ", 1)); |
11343788 | 6155 | cLISTOPo->op_last = kid; /* There was only one element previously */ |
85e6fe83 | 6156 | } |
79072805 LW |
6157 | |
6158 | if (kid->op_type != OP_MATCH) { | |
6159 | OP *sibl = kid->op_sibling; | |
463ee0b2 | 6160 | kid->op_sibling = 0; |
79072805 | 6161 | kid = pmruntime( newPMOP(OP_MATCH, OPf_SPECIAL), kid, Nullop); |
11343788 MB |
6162 | if (cLISTOPo->op_first == cLISTOPo->op_last) |
6163 | cLISTOPo->op_last = kid; | |
6164 | cLISTOPo->op_first = kid; | |
79072805 LW |
6165 | kid->op_sibling = sibl; |
6166 | } | |
6167 | ||
6168 | kid->op_type = OP_PUSHRE; | |
22c35a8c | 6169 | kid->op_ppaddr = PL_ppaddr[OP_PUSHRE]; |
79072805 LW |
6170 | scalar(kid); |
6171 | ||
6172 | if (!kid->op_sibling) | |
54b9620d | 6173 | append_elem(OP_SPLIT, o, newDEFSVOP()); |
79072805 LW |
6174 | |
6175 | kid = kid->op_sibling; | |
6176 | scalar(kid); | |
6177 | ||
6178 | if (!kid->op_sibling) | |
11343788 | 6179 | append_elem(OP_SPLIT, o, newSVOP(OP_CONST, 0, newSViv(0))); |
79072805 LW |
6180 | |
6181 | kid = kid->op_sibling; | |
6182 | scalar(kid); | |
6183 | ||
6184 | if (kid->op_sibling) | |
22c35a8c | 6185 | return too_many_arguments(o,PL_op_desc[o->op_type]); |
79072805 | 6186 | |
11343788 | 6187 | return o; |
79072805 LW |
6188 | } |
6189 | ||
6190 | OP * | |
eb6e2d6f GS |
6191 | Perl_ck_join(pTHX_ OP *o) |
6192 | { | |
6193 | if (ckWARN(WARN_SYNTAX)) { | |
6194 | OP *kid = cLISTOPo->op_first->op_sibling; | |
6195 | if (kid && kid->op_type == OP_MATCH) { | |
6196 | char *pmstr = "STRING"; | |
6197 | if (kPMOP->op_pmregexp) | |
6198 | pmstr = kPMOP->op_pmregexp->precomp; | |
6199 | Perl_warner(aTHX_ WARN_SYNTAX, | |
6200 | "/%s/ should probably be written as \"%s\"", | |
6201 | pmstr, pmstr); | |
6202 | } | |
6203 | } | |
6204 | return ck_fun(o); | |
6205 | } | |
6206 | ||
6207 | OP * | |
cea2e8a9 | 6208 | Perl_ck_subr(pTHX_ OP *o) |
79072805 | 6209 | { |
11343788 MB |
6210 | dTHR; |
6211 | OP *prev = ((cUNOPo->op_first->op_sibling) | |
6212 | ? cUNOPo : ((UNOP*)cUNOPo->op_first))->op_first; | |
6213 | OP *o2 = prev->op_sibling; | |
4633a7c4 LW |
6214 | OP *cvop; |
6215 | char *proto = 0; | |
6216 | CV *cv = 0; | |
46fc3d4c | 6217 | GV *namegv = 0; |
4633a7c4 LW |
6218 | int optional = 0; |
6219 | I32 arg = 0; | |
2d8e6c8d | 6220 | STRLEN n_a; |
4633a7c4 | 6221 | |
d3011074 | 6222 | o->op_private |= OPpENTERSUB_HASTARG; |
11343788 | 6223 | for (cvop = o2; cvop->op_sibling; cvop = cvop->op_sibling) ; |
4633a7c4 LW |
6224 | if (cvop->op_type == OP_RV2CV) { |
6225 | SVOP* tmpop; | |
11343788 | 6226 | o->op_private |= (cvop->op_private & OPpENTERSUB_AMPER); |
4633a7c4 LW |
6227 | null(cvop); /* disable rv2cv */ |
6228 | tmpop = (SVOP*)((UNOP*)cvop)->op_first; | |
76cd736e | 6229 | if (tmpop->op_type == OP_GV && !(o->op_private & OPpENTERSUB_AMPER)) { |
638eceb6 | 6230 | GV *gv = cGVOPx_gv(tmpop); |
350de78d | 6231 | cv = GvCVu(gv); |
76cd736e GS |
6232 | if (!cv) |
6233 | tmpop->op_private |= OPpEARLY_CV; | |
6234 | else if (SvPOK(cv)) { | |
350de78d | 6235 | namegv = CvANON(cv) ? gv : CvGV(cv); |
2d8e6c8d | 6236 | proto = SvPV((SV*)cv, n_a); |
46fc3d4c | 6237 | } |
4633a7c4 LW |
6238 | } |
6239 | } | |
f5d5a27c | 6240 | else if (cvop->op_type == OP_METHOD || cvop->op_type == OP_METHOD_NAMED) { |
7a52d87a GS |
6241 | if (o2->op_type == OP_CONST) |
6242 | o2->op_private &= ~OPpCONST_STRICT; | |
58a40671 GS |
6243 | else if (o2->op_type == OP_LIST) { |
6244 | OP *o = ((UNOP*)o2)->op_first->op_sibling; | |
6245 | if (o && o->op_type == OP_CONST) | |
6246 | o->op_private &= ~OPpCONST_STRICT; | |
6247 | } | |
7a52d87a | 6248 | } |
3280af22 NIS |
6249 | o->op_private |= (PL_hints & HINT_STRICT_REFS); |
6250 | if (PERLDB_SUB && PL_curstash != PL_debstash) | |
11343788 MB |
6251 | o->op_private |= OPpENTERSUB_DB; |
6252 | while (o2 != cvop) { | |
4633a7c4 LW |
6253 | if (proto) { |
6254 | switch (*proto) { | |
6255 | case '\0': | |
5dc0d613 | 6256 | return too_many_arguments(o, gv_ename(namegv)); |
4633a7c4 LW |
6257 | case ';': |
6258 | optional = 1; | |
6259 | proto++; | |
6260 | continue; | |
6261 | case '$': | |
6262 | proto++; | |
6263 | arg++; | |
11343788 | 6264 | scalar(o2); |
4633a7c4 LW |
6265 | break; |
6266 | case '%': | |
6267 | case '@': | |
11343788 | 6268 | list(o2); |
4633a7c4 LW |
6269 | arg++; |
6270 | break; | |
6271 | case '&': | |
6272 | proto++; | |
6273 | arg++; | |
11343788 | 6274 | if (o2->op_type != OP_REFGEN && o2->op_type != OP_UNDEF) |
75fc29ea GS |
6275 | bad_type(arg, |
6276 | arg == 1 ? "block or sub {}" : "sub {}", | |
6277 | gv_ename(namegv), o2); | |
4633a7c4 LW |
6278 | break; |
6279 | case '*': | |
2ba6ecf4 | 6280 | /* '*' allows any scalar type, including bareword */ |
4633a7c4 LW |
6281 | proto++; |
6282 | arg++; | |
11343788 | 6283 | if (o2->op_type == OP_RV2GV) |
2ba6ecf4 | 6284 | goto wrapref; /* autoconvert GLOB -> GLOBref */ |
7a52d87a GS |
6285 | else if (o2->op_type == OP_CONST) |
6286 | o2->op_private &= ~OPpCONST_STRICT; | |
9675f7ac GS |
6287 | else if (o2->op_type == OP_ENTERSUB) { |
6288 | /* accidental subroutine, revert to bareword */ | |
6289 | OP *gvop = ((UNOP*)o2)->op_first; | |
6290 | if (gvop && gvop->op_type == OP_NULL) { | |
6291 | gvop = ((UNOP*)gvop)->op_first; | |
6292 | if (gvop) { | |
6293 | for (; gvop->op_sibling; gvop = gvop->op_sibling) | |
6294 | ; | |
6295 | if (gvop && | |
6296 | (gvop->op_private & OPpENTERSUB_NOPAREN) && | |
6297 | (gvop = ((UNOP*)gvop)->op_first) && | |
6298 | gvop->op_type == OP_GV) | |
6299 | { | |
638eceb6 | 6300 | GV *gv = cGVOPx_gv(gvop); |
9675f7ac | 6301 | OP *sibling = o2->op_sibling; |
2692f720 | 6302 | SV *n = newSVpvn("",0); |
9675f7ac | 6303 | op_free(o2); |
2692f720 GS |
6304 | gv_fullname3(n, gv, ""); |
6305 | if (SvCUR(n)>6 && strnEQ(SvPVX(n),"main::",6)) | |
6306 | sv_chop(n, SvPVX(n)+6); | |
6307 | o2 = newSVOP(OP_CONST, 0, n); | |
9675f7ac GS |
6308 | prev->op_sibling = o2; |
6309 | o2->op_sibling = sibling; | |
6310 | } | |
6311 | } | |
6312 | } | |
6313 | } | |
2ba6ecf4 GS |
6314 | scalar(o2); |
6315 | break; | |
4633a7c4 LW |
6316 | case '\\': |
6317 | proto++; | |
6318 | arg++; | |
6319 | switch (*proto++) { | |
6320 | case '*': | |
11343788 | 6321 | if (o2->op_type != OP_RV2GV) |
5dc0d613 | 6322 | bad_type(arg, "symbol", gv_ename(namegv), o2); |
4633a7c4 LW |
6323 | goto wrapref; |
6324 | case '&': | |
75fc29ea GS |
6325 | if (o2->op_type != OP_ENTERSUB) |
6326 | bad_type(arg, "subroutine entry", gv_ename(namegv), o2); | |
4633a7c4 LW |
6327 | goto wrapref; |
6328 | case '$': | |
386acf99 GS |
6329 | if (o2->op_type != OP_RV2SV |
6330 | && o2->op_type != OP_PADSV | |
1c01eb51 GS |
6331 | && o2->op_type != OP_HELEM |
6332 | && o2->op_type != OP_AELEM | |
386acf99 GS |
6333 | && o2->op_type != OP_THREADSV) |
6334 | { | |
5dc0d613 | 6335 | bad_type(arg, "scalar", gv_ename(namegv), o2); |
386acf99 | 6336 | } |
4633a7c4 LW |
6337 | goto wrapref; |
6338 | case '@': | |
11343788 | 6339 | if (o2->op_type != OP_RV2AV && o2->op_type != OP_PADAV) |
5dc0d613 | 6340 | bad_type(arg, "array", gv_ename(namegv), o2); |
4633a7c4 LW |
6341 | goto wrapref; |
6342 | case '%': | |
11343788 | 6343 | if (o2->op_type != OP_RV2HV && o2->op_type != OP_PADHV) |
5dc0d613 | 6344 | bad_type(arg, "hash", gv_ename(namegv), o2); |
4633a7c4 LW |
6345 | wrapref: |
6346 | { | |
11343788 | 6347 | OP* kid = o2; |
6fa846a0 | 6348 | OP* sib = kid->op_sibling; |
4633a7c4 | 6349 | kid->op_sibling = 0; |
6fa846a0 GS |
6350 | o2 = newUNOP(OP_REFGEN, 0, kid); |
6351 | o2->op_sibling = sib; | |
e858de61 | 6352 | prev->op_sibling = o2; |
4633a7c4 LW |
6353 | } |
6354 | break; | |
6355 | default: goto oops; | |
6356 | } | |
6357 | break; | |
b1cb66bf | 6358 | case ' ': |
6359 | proto++; | |
6360 | continue; | |
4633a7c4 LW |
6361 | default: |
6362 | oops: | |
cea2e8a9 | 6363 | Perl_croak(aTHX_ "Malformed prototype for %s: %s", |
2d8e6c8d | 6364 | gv_ename(namegv), SvPV((SV*)cv, n_a)); |
4633a7c4 LW |
6365 | } |
6366 | } | |
6367 | else | |
11343788 MB |
6368 | list(o2); |
6369 | mod(o2, OP_ENTERSUB); | |
6370 | prev = o2; | |
6371 | o2 = o2->op_sibling; | |
4633a7c4 | 6372 | } |
fb73857a | 6373 | if (proto && !optional && |
6374 | (*proto && *proto != '@' && *proto != '%' && *proto != ';')) | |
5dc0d613 | 6375 | return too_few_arguments(o, gv_ename(namegv)); |
11343788 | 6376 | return o; |
79072805 LW |
6377 | } |
6378 | ||
6379 | OP * | |
cea2e8a9 | 6380 | Perl_ck_svconst(pTHX_ OP *o) |
8990e307 | 6381 | { |
11343788 MB |
6382 | SvREADONLY_on(cSVOPo->op_sv); |
6383 | return o; | |
8990e307 LW |
6384 | } |
6385 | ||
6386 | OP * | |
cea2e8a9 | 6387 | Perl_ck_trunc(pTHX_ OP *o) |
79072805 | 6388 | { |
11343788 MB |
6389 | if (o->op_flags & OPf_KIDS) { |
6390 | SVOP *kid = (SVOP*)cUNOPo->op_first; | |
79072805 | 6391 | |
a0d0e21e LW |
6392 | if (kid->op_type == OP_NULL) |
6393 | kid = (SVOP*)kid->op_sibling; | |
bb53490d GS |
6394 | if (kid && kid->op_type == OP_CONST && |
6395 | (kid->op_private & OPpCONST_BARE)) | |
6396 | { | |
11343788 | 6397 | o->op_flags |= OPf_SPECIAL; |
bb53490d GS |
6398 | kid->op_private &= ~OPpCONST_STRICT; |
6399 | } | |
79072805 | 6400 | } |
11343788 | 6401 | return ck_fun(o); |
79072805 LW |
6402 | } |
6403 | ||
463ee0b2 LW |
6404 | /* A peephole optimizer. We visit the ops in the order they're to execute. */ |
6405 | ||
79072805 | 6406 | void |
864dbfa3 | 6407 | Perl_peep(pTHX_ register OP *o) |
79072805 | 6408 | { |
11343788 | 6409 | dTHR; |
79072805 | 6410 | register OP* oldop = 0; |
2d8e6c8d | 6411 | STRLEN n_a; |
cd06dffe | 6412 | OP *last_composite = Nullop; |
2d8e6c8d | 6413 | |
a0d0e21e | 6414 | if (!o || o->op_seq) |
79072805 | 6415 | return; |
a0d0e21e | 6416 | ENTER; |
462e5cf6 | 6417 | SAVEOP(); |
7766f137 | 6418 | SAVEVPTR(PL_curcop); |
a0d0e21e LW |
6419 | for (; o; o = o->op_next) { |
6420 | if (o->op_seq) | |
6421 | break; | |
3280af22 NIS |
6422 | if (!PL_op_seqmax) |
6423 | PL_op_seqmax++; | |
533c011a | 6424 | PL_op = o; |
a0d0e21e | 6425 | switch (o->op_type) { |
acb36ea4 | 6426 | case OP_SETSTATE: |
a0d0e21e LW |
6427 | case OP_NEXTSTATE: |
6428 | case OP_DBSTATE: | |
3280af22 NIS |
6429 | PL_curcop = ((COP*)o); /* for warnings */ |
6430 | o->op_seq = PL_op_seqmax++; | |
cd06dffe | 6431 | last_composite = Nullop; |
a0d0e21e LW |
6432 | break; |
6433 | ||
a0d0e21e | 6434 | case OP_CONST: |
7a52d87a GS |
6435 | if (cSVOPo->op_private & OPpCONST_STRICT) |
6436 | no_bareword_allowed(o); | |
7766f137 GS |
6437 | #ifdef USE_ITHREADS |
6438 | /* Relocate sv to the pad for thread safety. | |
6439 | * Despite being a "constant", the SV is written to, | |
6440 | * for reference counts, sv_upgrade() etc. */ | |
6441 | if (cSVOP->op_sv) { | |
6442 | PADOFFSET ix = pad_alloc(OP_CONST, SVs_PADTMP); | |
6a7129a1 GS |
6443 | if (SvPADTMP(cSVOPo->op_sv)) { |
6444 | /* If op_sv is already a PADTMP then it is being used by | |
6445 | * another pad, so make a copy. */ | |
6446 | sv_setsv(PL_curpad[ix],cSVOPo->op_sv); | |
6447 | SvREADONLY_on(PL_curpad[ix]); | |
6448 | SvREFCNT_dec(cSVOPo->op_sv); | |
6449 | } | |
6450 | else { | |
6451 | SvREFCNT_dec(PL_curpad[ix]); | |
6452 | SvPADTMP_on(cSVOPo->op_sv); | |
6453 | PL_curpad[ix] = cSVOPo->op_sv; | |
6454 | } | |
7766f137 GS |
6455 | cSVOPo->op_sv = Nullsv; |
6456 | o->op_targ = ix; | |
6457 | } | |
6458 | #endif | |
07447971 GS |
6459 | o->op_seq = PL_op_seqmax++; |
6460 | break; | |
6461 | ||
ed7ab888 | 6462 | case OP_CONCAT: |
b162f9ea IZ |
6463 | if (o->op_next && o->op_next->op_type == OP_STRINGIFY) { |
6464 | if (o->op_next->op_private & OPpTARGET_MY) { | |
69b47968 | 6465 | if (o->op_flags & OPf_STACKED) /* chained concats */ |
b162f9ea | 6466 | goto ignore_optimization; |
cd06dffe | 6467 | else { |
07447971 | 6468 | /* assert(PL_opargs[o->op_type] & OA_TARGLEX); */ |
b162f9ea | 6469 | o->op_targ = o->op_next->op_targ; |
743e66e6 | 6470 | o->op_next->op_targ = 0; |
2c2d71f5 | 6471 | o->op_private |= OPpTARGET_MY; |
b162f9ea IZ |
6472 | } |
6473 | } | |
a0d0e21e | 6474 | null(o->op_next); |
b162f9ea IZ |
6475 | } |
6476 | ignore_optimization: | |
3280af22 | 6477 | o->op_seq = PL_op_seqmax++; |
a0d0e21e | 6478 | break; |
8990e307 | 6479 | case OP_STUB: |
54310121 | 6480 | if ((o->op_flags & OPf_WANT) != OPf_WANT_LIST) { |
3280af22 | 6481 | o->op_seq = PL_op_seqmax++; |
54310121 | 6482 | break; /* Scalar stub must produce undef. List stub is noop */ |
8990e307 | 6483 | } |
748a9306 | 6484 | goto nothin; |
79072805 | 6485 | case OP_NULL: |
acb36ea4 GS |
6486 | if (o->op_targ == OP_NEXTSTATE |
6487 | || o->op_targ == OP_DBSTATE | |
6488 | || o->op_targ == OP_SETSTATE) | |
6489 | { | |
3280af22 | 6490 | PL_curcop = ((COP*)o); |
acb36ea4 | 6491 | } |
748a9306 | 6492 | goto nothin; |
79072805 | 6493 | case OP_SCALAR: |
93a17b20 | 6494 | case OP_LINESEQ: |
463ee0b2 | 6495 | case OP_SCOPE: |
748a9306 | 6496 | nothin: |
a0d0e21e LW |
6497 | if (oldop && o->op_next) { |
6498 | oldop->op_next = o->op_next; | |
79072805 LW |
6499 | continue; |
6500 | } | |
3280af22 | 6501 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6502 | break; |
6503 | ||
6504 | case OP_GV: | |
a0d0e21e | 6505 | if (o->op_next->op_type == OP_RV2SV) { |
64aac5a9 | 6506 | if (!(o->op_next->op_private & OPpDEREF)) { |
ef8040b0 | 6507 | null(o->op_next); |
64aac5a9 GS |
6508 | o->op_private |= o->op_next->op_private & (OPpLVAL_INTRO |
6509 | | OPpOUR_INTRO); | |
a0d0e21e LW |
6510 | o->op_next = o->op_next->op_next; |
6511 | o->op_type = OP_GVSV; | |
22c35a8c | 6512 | o->op_ppaddr = PL_ppaddr[OP_GVSV]; |
8990e307 LW |
6513 | } |
6514 | } | |
a0d0e21e LW |
6515 | else if (o->op_next->op_type == OP_RV2AV) { |
6516 | OP* pop = o->op_next->op_next; | |
6517 | IV i; | |
8990e307 | 6518 | if (pop->op_type == OP_CONST && |
533c011a | 6519 | (PL_op = pop->op_next) && |
8990e307 | 6520 | pop->op_next->op_type == OP_AELEM && |
a0d0e21e | 6521 | !(pop->op_next->op_private & |
68dc0745 | 6522 | (OPpLVAL_INTRO|OPpLVAL_DEFER|OPpDEREF)) && |
3280af22 | 6523 | (i = SvIV(((SVOP*)pop)->op_sv) - PL_compiling.cop_arybase) |
a0d0e21e | 6524 | <= 255 && |
8990e307 LW |
6525 | i >= 0) |
6526 | { | |
350de78d | 6527 | GV *gv; |
a0d0e21e | 6528 | null(o->op_next); |
8990e307 LW |
6529 | null(pop->op_next); |
6530 | null(pop); | |
a0d0e21e LW |
6531 | o->op_flags |= pop->op_next->op_flags & OPf_MOD; |
6532 | o->op_next = pop->op_next->op_next; | |
6533 | o->op_type = OP_AELEMFAST; | |
22c35a8c | 6534 | o->op_ppaddr = PL_ppaddr[OP_AELEMFAST]; |
a0d0e21e | 6535 | o->op_private = (U8)i; |
638eceb6 | 6536 | gv = cGVOPo_gv; |
350de78d | 6537 | GvAVn(gv); |
8990e307 | 6538 | } |
79072805 | 6539 | } |
e476b1b5 | 6540 | else if ((o->op_private & OPpEARLY_CV) && ckWARN(WARN_PROTOTYPE)) { |
638eceb6 | 6541 | GV *gv = cGVOPo_gv; |
76cd736e GS |
6542 | if (SvTYPE(gv) == SVt_PVGV && GvCV(gv) && SvPVX(GvCV(gv))) { |
6543 | /* XXX could check prototype here instead of just carping */ | |
6544 | SV *sv = sv_newmortal(); | |
6545 | gv_efullname3(sv, gv, Nullch); | |
e476b1b5 | 6546 | Perl_warner(aTHX_ WARN_PROTOTYPE, |
76cd736e GS |
6547 | "%s() called too early to check prototype", |
6548 | SvPV_nolen(sv)); | |
6549 | } | |
6550 | } | |
6551 | ||
3280af22 | 6552 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6553 | break; |
6554 | ||
a0d0e21e | 6555 | case OP_MAPWHILE: |
79072805 LW |
6556 | case OP_GREPWHILE: |
6557 | case OP_AND: | |
6558 | case OP_OR: | |
2c2d71f5 JH |
6559 | case OP_ANDASSIGN: |
6560 | case OP_ORASSIGN: | |
1a67a97c SM |
6561 | case OP_COND_EXPR: |
6562 | case OP_RANGE: | |
3280af22 | 6563 | o->op_seq = PL_op_seqmax++; |
fd4d1407 IZ |
6564 | while (cLOGOP->op_other->op_type == OP_NULL) |
6565 | cLOGOP->op_other = cLOGOP->op_other->op_next; | |
79072805 LW |
6566 | peep(cLOGOP->op_other); |
6567 | break; | |
6568 | ||
79072805 | 6569 | case OP_ENTERLOOP: |
3280af22 | 6570 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6571 | peep(cLOOP->op_redoop); |
6572 | peep(cLOOP->op_nextop); | |
6573 | peep(cLOOP->op_lastop); | |
6574 | break; | |
6575 | ||
8782bef2 | 6576 | case OP_QR: |
79072805 LW |
6577 | case OP_MATCH: |
6578 | case OP_SUBST: | |
3280af22 | 6579 | o->op_seq = PL_op_seqmax++; |
a0d0e21e | 6580 | peep(cPMOP->op_pmreplstart); |
79072805 LW |
6581 | break; |
6582 | ||
a0d0e21e | 6583 | case OP_EXEC: |
3280af22 | 6584 | o->op_seq = PL_op_seqmax++; |
599cee73 PM |
6585 | if (ckWARN(WARN_SYNTAX) && o->op_next |
6586 | && o->op_next->op_type == OP_NEXTSTATE) { | |
a0d0e21e | 6587 | if (o->op_next->op_sibling && |
20408e3c GS |
6588 | o->op_next->op_sibling->op_type != OP_EXIT && |
6589 | o->op_next->op_sibling->op_type != OP_WARN && | |
a0d0e21e | 6590 | o->op_next->op_sibling->op_type != OP_DIE) { |
57843af0 | 6591 | line_t oldline = CopLINE(PL_curcop); |
a0d0e21e | 6592 | |
57843af0 | 6593 | CopLINE_set(PL_curcop, CopLINE((COP*)o->op_next)); |
eeb6a2c9 GS |
6594 | Perl_warner(aTHX_ WARN_EXEC, |
6595 | "Statement unlikely to be reached"); | |
6596 | Perl_warner(aTHX_ WARN_EXEC, | |
cc507455 | 6597 | "\t(Maybe you meant system() when you said exec()?)\n"); |
57843af0 | 6598 | CopLINE_set(PL_curcop, oldline); |
a0d0e21e LW |
6599 | } |
6600 | } | |
6601 | break; | |
aeea060c | 6602 | |
c750a3ec MB |
6603 | case OP_HELEM: { |
6604 | UNOP *rop; | |
6605 | SV *lexname; | |
6606 | GV **fields; | |
9615e741 | 6607 | SV **svp, **indsvp, *sv; |
c750a3ec MB |
6608 | I32 ind; |
6609 | char *key; | |
6610 | STRLEN keylen; | |
aeea060c | 6611 | |
9615e741 | 6612 | o->op_seq = PL_op_seqmax++; |
377b21bb | 6613 | if ((o->op_private & (OPpLVAL_INTRO)) |
c750a3ec MB |
6614 | || ((BINOP*)o)->op_last->op_type != OP_CONST) |
6615 | break; | |
6616 | rop = (UNOP*)((BINOP*)o)->op_first; | |
6617 | if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV) | |
6618 | break; | |
3280af22 | 6619 | lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE); |
c750a3ec MB |
6620 | if (!SvOBJECT(lexname)) |
6621 | break; | |
5196be3e | 6622 | fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); |
c750a3ec MB |
6623 | if (!fields || !GvHV(*fields)) |
6624 | break; | |
638eceb6 | 6625 | svp = cSVOPx_svp(((BINOP*)o)->op_last); |
c750a3ec MB |
6626 | key = SvPV(*svp, keylen); |
6627 | indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE); | |
6628 | if (!indsvp) { | |
88e9b055 | 6629 | Perl_croak(aTHX_ "No such pseudo-hash field \"%s\" in variable %s of type %s", |
2d8e6c8d | 6630 | key, SvPV(lexname, n_a), HvNAME(SvSTASH(lexname))); |
c750a3ec MB |
6631 | } |
6632 | ind = SvIV(*indsvp); | |
6633 | if (ind < 1) | |
cea2e8a9 | 6634 | Perl_croak(aTHX_ "Bad index while coercing array into hash"); |
c750a3ec | 6635 | rop->op_type = OP_RV2AV; |
22c35a8c | 6636 | rop->op_ppaddr = PL_ppaddr[OP_RV2AV]; |
c750a3ec | 6637 | o->op_type = OP_AELEM; |
22c35a8c | 6638 | o->op_ppaddr = PL_ppaddr[OP_AELEM]; |
9615e741 GS |
6639 | sv = newSViv(ind); |
6640 | if (SvREADONLY(*svp)) | |
6641 | SvREADONLY_on(sv); | |
6642 | SvFLAGS(sv) |= (SvFLAGS(*svp) | |
6643 | & (SVs_PADBUSY|SVs_PADTMP|SVs_PADMY)); | |
c750a3ec | 6644 | SvREFCNT_dec(*svp); |
9615e741 | 6645 | *svp = sv; |
c750a3ec MB |
6646 | break; |
6647 | } | |
345599ca GS |
6648 | |
6649 | case OP_HSLICE: { | |
6650 | UNOP *rop; | |
6651 | SV *lexname; | |
6652 | GV **fields; | |
9615e741 | 6653 | SV **svp, **indsvp, *sv; |
345599ca GS |
6654 | I32 ind; |
6655 | char *key; | |
6656 | STRLEN keylen; | |
6657 | SVOP *first_key_op, *key_op; | |
9615e741 GS |
6658 | |
6659 | o->op_seq = PL_op_seqmax++; | |
345599ca GS |
6660 | if ((o->op_private & (OPpLVAL_INTRO)) |
6661 | /* I bet there's always a pushmark... */ | |
6662 | || ((LISTOP*)o)->op_first->op_sibling->op_type != OP_LIST) | |
6663 | /* hmmm, no optimization if list contains only one key. */ | |
6664 | break; | |
6665 | rop = (UNOP*)((LISTOP*)o)->op_last; | |
6666 | if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV) | |
6667 | break; | |
6668 | lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE); | |
6669 | if (!SvOBJECT(lexname)) | |
6670 | break; | |
6671 | fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); | |
6672 | if (!fields || !GvHV(*fields)) | |
6673 | break; | |
6674 | /* Again guessing that the pushmark can be jumped over.... */ | |
6675 | first_key_op = (SVOP*)((LISTOP*)((LISTOP*)o)->op_first->op_sibling) | |
6676 | ->op_first->op_sibling; | |
6677 | /* Check that the key list contains only constants. */ | |
6678 | for (key_op = first_key_op; key_op; | |
6679 | key_op = (SVOP*)key_op->op_sibling) | |
6680 | if (key_op->op_type != OP_CONST) | |
6681 | break; | |
6682 | if (key_op) | |
6683 | break; | |
6684 | rop->op_type = OP_RV2AV; | |
6685 | rop->op_ppaddr = PL_ppaddr[OP_RV2AV]; | |
6686 | o->op_type = OP_ASLICE; | |
6687 | o->op_ppaddr = PL_ppaddr[OP_ASLICE]; | |
6688 | for (key_op = first_key_op; key_op; | |
6689 | key_op = (SVOP*)key_op->op_sibling) { | |
6690 | svp = cSVOPx_svp(key_op); | |
6691 | key = SvPV(*svp, keylen); | |
6692 | indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE); | |
6693 | if (!indsvp) { | |
9615e741 GS |
6694 | Perl_croak(aTHX_ "No such pseudo-hash field \"%s\" " |
6695 | "in variable %s of type %s", | |
345599ca GS |
6696 | key, SvPV(lexname, n_a), HvNAME(SvSTASH(lexname))); |
6697 | } | |
6698 | ind = SvIV(*indsvp); | |
6699 | if (ind < 1) | |
6700 | Perl_croak(aTHX_ "Bad index while coercing array into hash"); | |
9615e741 GS |
6701 | sv = newSViv(ind); |
6702 | if (SvREADONLY(*svp)) | |
6703 | SvREADONLY_on(sv); | |
6704 | SvFLAGS(sv) |= (SvFLAGS(*svp) | |
6705 | & (SVs_PADBUSY|SVs_PADTMP|SVs_PADMY)); | |
345599ca | 6706 | SvREFCNT_dec(*svp); |
9615e741 | 6707 | *svp = sv; |
345599ca GS |
6708 | } |
6709 | break; | |
6710 | } | |
c750a3ec | 6711 | |
cd06dffe GS |
6712 | case OP_RV2AV: |
6713 | case OP_RV2HV: | |
6714 | if (!(o->op_flags & OPf_WANT) | |
e1f15930 GS |
6715 | || (o->op_flags & OPf_WANT) == OPf_WANT_LIST) |
6716 | { | |
cd06dffe | 6717 | last_composite = o; |
e1f15930 | 6718 | } |
cd06dffe GS |
6719 | o->op_seq = PL_op_seqmax++; |
6720 | break; | |
6721 | ||
6722 | case OP_RETURN: | |
970c4905 | 6723 | if (o->op_next && o->op_next->op_type != OP_LEAVESUBLV) { |
cd06dffe GS |
6724 | o->op_seq = PL_op_seqmax++; |
6725 | break; | |
6726 | } | |
6727 | /* FALL THROUGH */ | |
6728 | ||
6729 | case OP_LEAVESUBLV: | |
6730 | if (last_composite) { | |
6731 | OP *r = last_composite; | |
6732 | ||
6733 | while (r->op_sibling) | |
6734 | r = r->op_sibling; | |
6735 | if (r->op_next == o | |
6736 | || (r->op_next->op_type == OP_LIST | |
6737 | && r->op_next->op_next == o)) | |
6738 | { | |
6739 | if (last_composite->op_type == OP_RV2AV) | |
6740 | yyerror("Lvalue subs returning arrays not implemented yet"); | |
6741 | else | |
6742 | yyerror("Lvalue subs returning hashes not implemented yet"); | |
6743 | ; | |
6744 | } | |
6745 | } | |
6746 | /* FALL THROUGH */ | |
6747 | ||
79072805 | 6748 | default: |
3280af22 | 6749 | o->op_seq = PL_op_seqmax++; |
79072805 LW |
6750 | break; |
6751 | } | |
a0d0e21e | 6752 | oldop = o; |
79072805 | 6753 | } |
a0d0e21e | 6754 | LEAVE; |
79072805 | 6755 | } |