Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a0d0e21e LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * Now far ahead the Road has gone, |
13 | * And I must follow, if I can, | |
14 | * Pursuing it with eager feet, | |
15 | * Until it joins some larger way | |
16 | * Where many paths and errands meet. | |
17 | * And whither then? I cannot say. | |
18 | * | |
19 | * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"] | |
a0d0e21e LW |
20 | */ |
21 | ||
166f8a29 DM |
22 | /* This file contains control-oriented pp ("push/pop") functions that |
23 | * execute the opcodes that make up a perl program. A typical pp function | |
24 | * expects to find its arguments on the stack, and usually pushes its | |
25 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
26 | * contains a pointer to the relevant pp_foo() function. | |
27 | * | |
28 | * Control-oriented means things like pp_enteriter() and pp_next(), which | |
29 | * alter the flow of control of the program. | |
30 | */ | |
31 | ||
32 | ||
a0d0e21e | 33 | #include "EXTERN.h" |
864dbfa3 | 34 | #define PERL_IN_PP_CTL_C |
a0d0e21e LW |
35 | #include "perl.h" |
36 | ||
37 | #ifndef WORD_ALIGN | |
dea28490 | 38 | #define WORD_ALIGN sizeof(U32) |
a0d0e21e LW |
39 | #endif |
40 | ||
54310121 | 41 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 42 | |
94fcd414 NC |
43 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
44 | ||
a0d0e21e LW |
45 | PP(pp_wantarray) |
46 | { | |
97aff369 | 47 | dVAR; |
39644a26 | 48 | dSP; |
a0d0e21e LW |
49 | I32 cxix; |
50 | EXTEND(SP, 1); | |
51 | ||
52 | cxix = dopoptosub(cxstack_ix); | |
53 | if (cxix < 0) | |
54 | RETPUSHUNDEF; | |
55 | ||
54310121 PP |
56 | switch (cxstack[cxix].blk_gimme) { |
57 | case G_ARRAY: | |
a0d0e21e | 58 | RETPUSHYES; |
54310121 | 59 | case G_SCALAR: |
a0d0e21e | 60 | RETPUSHNO; |
54310121 PP |
61 | default: |
62 | RETPUSHUNDEF; | |
63 | } | |
a0d0e21e LW |
64 | } |
65 | ||
2cd61cdb IZ |
66 | PP(pp_regcreset) |
67 | { | |
97aff369 | 68 | dVAR; |
2cd61cdb IZ |
69 | /* XXXX Should store the old value to allow for tie/overload - and |
70 | restore in regcomp, where marked with XXXX. */ | |
3280af22 | 71 | PL_reginterp_cnt = 0; |
0b4182de | 72 | TAINT_NOT; |
2cd61cdb IZ |
73 | return NORMAL; |
74 | } | |
75 | ||
b3eb6a9b GS |
76 | PP(pp_regcomp) |
77 | { | |
97aff369 | 78 | dVAR; |
39644a26 | 79 | dSP; |
a0d0e21e | 80 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
a0d0e21e | 81 | SV *tmpstr; |
84679df5 | 82 | REGEXP *re = NULL; |
bfed75c6 | 83 | |
4b5a0d1c | 84 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 85 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
86 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
87 | if (PL_op->op_flags & OPf_STACKED) { | |
88 | dMARK; | |
89 | SP = MARK; | |
90 | } | |
91 | else | |
92 | (void)POPs; | |
93 | RETURN; | |
94 | } | |
513629ba | 95 | #endif |
d4b87e75 BM |
96 | |
97 | #define tryAMAGICregexp(rx) \ | |
98 | STMT_START { \ | |
6f1401dc | 99 | SvGETMAGIC(rx); \ |
d4b87e75 BM |
100 | if (SvROK(rx) && SvAMAGIC(rx)) { \ |
101 | SV *sv = AMG_CALLun(rx, regexp); \ | |
102 | if (sv) { \ | |
103 | if (SvROK(sv)) \ | |
104 | sv = SvRV(sv); \ | |
105 | if (SvTYPE(sv) != SVt_REGEXP) \ | |
106 | Perl_croak(aTHX_ "Overloaded qr did not return a REGEXP"); \ | |
107 | rx = sv; \ | |
108 | } \ | |
109 | } \ | |
110 | } STMT_END | |
111 | ||
112 | ||
131b3ad0 DM |
113 | if (PL_op->op_flags & OPf_STACKED) { |
114 | /* multiple args; concatentate them */ | |
115 | dMARK; dORIGMARK; | |
116 | tmpstr = PAD_SV(ARGTARG); | |
76f68e9b | 117 | sv_setpvs(tmpstr, ""); |
131b3ad0 | 118 | while (++MARK <= SP) { |
d4b87e75 | 119 | SV *msv = *MARK; |
79a8d529 | 120 | SV *sv; |
d4b87e75 | 121 | |
79a8d529 | 122 | tryAMAGICregexp(msv); |
d4b87e75 | 123 | |
79a8d529 DM |
124 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(msv)) && |
125 | (sv = amagic_call(tmpstr, msv, concat_amg, AMGf_assign))) | |
126 | { | |
127 | sv_setsv(tmpstr, sv); | |
128 | continue; | |
131b3ad0 | 129 | } |
d4b87e75 | 130 | sv_catsv(tmpstr, msv); |
131b3ad0 DM |
131 | } |
132 | SvSETMAGIC(tmpstr); | |
133 | SP = ORIGMARK; | |
134 | } | |
d4b87e75 | 135 | else { |
131b3ad0 | 136 | tmpstr = POPs; |
d4b87e75 BM |
137 | tryAMAGICregexp(tmpstr); |
138 | } | |
139 | ||
140 | #undef tryAMAGICregexp | |
513629ba | 141 | |
b3eb6a9b | 142 | if (SvROK(tmpstr)) { |
d8f6592e | 143 | SV * const sv = SvRV(tmpstr); |
5c35adbb | 144 | if (SvTYPE(sv) == SVt_REGEXP) |
d2f13c59 | 145 | re = (REGEXP*) sv; |
c277df42 | 146 | } |
d4b87e75 BM |
147 | else if (SvTYPE(tmpstr) == SVt_REGEXP) |
148 | re = (REGEXP*) tmpstr; | |
149 | ||
5c35adbb | 150 | if (re) { |
69dc4b30 FC |
151 | /* The match's LHS's get-magic might need to access this op's reg- |
152 | exp (as is sometimes the case with $'; see bug 70764). So we | |
153 | must call get-magic now before we replace the regexp. Hopeful- | |
154 | ly this hack can be replaced with the approach described at | |
155 | http://www.nntp.perl.org/group/perl.perl5.porters/2007/03 | |
156 | /msg122415.html some day. */ | |
455d9033 FC |
157 | if(pm->op_type == OP_MATCH) { |
158 | SV *lhs; | |
159 | const bool was_tainted = PL_tainted; | |
160 | if (pm->op_flags & OPf_STACKED) | |
69dc4b30 | 161 | lhs = TOPs; |
455d9033 FC |
162 | else if (pm->op_private & OPpTARGET_MY) |
163 | lhs = PAD_SV(pm->op_targ); | |
164 | else lhs = DEFSV; | |
165 | SvGETMAGIC(lhs); | |
166 | /* Restore the previous value of PL_tainted (which may have been | |
167 | modified by get-magic), to avoid incorrectly setting the | |
168 | RXf_TAINTED flag further down. */ | |
169 | PL_tainted = was_tainted; | |
170 | } | |
69dc4b30 | 171 | |
f0826785 | 172 | re = reg_temp_copy(NULL, re); |
aaa362c4 | 173 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 174 | PM_SETRE(pm, re); |
c277df42 IZ |
175 | } |
176 | else { | |
f3ec07c7 DM |
177 | STRLEN len = 0; |
178 | const char *t = SvOK(tmpstr) ? SvPV_nomg_const(tmpstr, len) : ""; | |
179 | ||
c737faaf | 180 | re = PM_GETRE(pm); |
14a49a24 | 181 | assert (re != (REGEXP*) &PL_sv_undef); |
c277df42 | 182 | |
20408e3c | 183 | /* Check against the last compiled regexp. */ |
a11c8683 | 184 | if (!re || !RX_PRECOMP(re) || RX_PRELEN(re) != len || |
220fc49f | 185 | memNE(RX_PRECOMP(re), t, len)) |
85aff577 | 186 | { |
07bc277f | 187 | const regexp_engine *eng = re ? RX_ENGINE(re) : NULL; |
c737faaf | 188 | U32 pm_flags = pm->op_pmflags & PMf_COMPILETIME; |
d8f6592e AL |
189 | if (re) { |
190 | ReREFCNT_dec(re); | |
14a49a24 NC |
191 | #ifdef USE_ITHREADS |
192 | PM_SETRE(pm, (REGEXP*) &PL_sv_undef); | |
193 | #else | |
4608196e | 194 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
14a49a24 | 195 | #endif |
1e2e3d02 YO |
196 | } else if (PL_curcop->cop_hints_hash) { |
197 | SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0, | |
198 | "regcomp", 7, 0, 0); | |
199 | if (ptr && SvIOK(ptr) && SvIV(ptr)) | |
200 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 201 | } |
664e119d | 202 | |
533c011a | 203 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 204 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 205 | |
b9ad30b4 NC |
206 | if (DO_UTF8(tmpstr)) { |
207 | assert (SvUTF8(tmpstr)); | |
208 | } else if (SvUTF8(tmpstr)) { | |
209 | /* Not doing UTF-8, despite what the SV says. Is this only if | |
210 | we're trapped in use 'bytes'? */ | |
211 | /* Make a copy of the octet sequence, but without the flag on, | |
212 | as the compiler now honours the SvUTF8 flag on tmpstr. */ | |
213 | STRLEN len; | |
214 | const char *const p = SvPV(tmpstr, len); | |
215 | tmpstr = newSVpvn_flags(p, len, SVs_TEMP); | |
216 | } | |
f3ec07c7 DM |
217 | else if (SvAMAGIC(tmpstr)) { |
218 | /* make a copy to avoid extra stringifies */ | |
0479a84a | 219 | tmpstr = newSVpvn_flags(t, len, SVs_TEMP | SvUTF8(tmpstr)); |
f3ec07c7 | 220 | } |
c737faaf | 221 | |
5a8697a7 | 222 | if (eng) |
3ab4a224 | 223 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); |
5a8697a7 | 224 | else |
3ab4a224 | 225 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); |
c737faaf | 226 | |
f86aaa29 | 227 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 228 | inside tie/overload accessors. */ |
c277df42 | 229 | } |
4633a7c4 | 230 | } |
c737faaf YO |
231 | |
232 | re = PM_GETRE(pm); | |
a0d0e21e | 233 | |
72311751 | 234 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
235 | if (PL_tainting) { |
236 | if (PL_tainted) | |
07bc277f | 237 | RX_EXTFLAGS(re) |= RXf_TAINTED; |
72311751 | 238 | else |
07bc277f | 239 | RX_EXTFLAGS(re) &= ~RXf_TAINTED; |
72311751 GS |
240 | } |
241 | #endif | |
242 | ||
220fc49f | 243 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
3280af22 | 244 | pm = PL_curpm; |
a0d0e21e | 245 | |
c737faaf YO |
246 | |
247 | #if !defined(USE_ITHREADS) | |
248 | /* can't change the optree at runtime either */ | |
249 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 250 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 251 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 252 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 253 | } |
c737faaf | 254 | #endif |
a0d0e21e LW |
255 | RETURN; |
256 | } | |
257 | ||
258 | PP(pp_substcont) | |
259 | { | |
97aff369 | 260 | dVAR; |
39644a26 | 261 | dSP; |
c09156bb | 262 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
263 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
264 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
265 | register char *s = cx->sb_s; |
266 | register char *m = cx->sb_m; | |
267 | char *orig = cx->sb_orig; | |
901017d6 | 268 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 269 | SV *nsv = NULL; |
988e6e7e | 270 | REGEXP *old = PM_GETRE(pm); |
f410a211 NC |
271 | |
272 | PERL_ASYNC_CHECK(); | |
273 | ||
988e6e7e | 274 | if(old != rx) { |
bfed75c6 | 275 | if(old) |
988e6e7e | 276 | ReREFCNT_dec(old); |
d6106309 | 277 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
278 | } |
279 | ||
d9f97599 | 280 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 281 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 282 | |
a0d0e21e | 283 | if (cx->sb_iters++) { |
a3b680e6 | 284 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 285 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 286 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 287 | |
447ee134 DM |
288 | SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */ |
289 | ||
48c036b1 GS |
290 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
291 | cx->sb_rxtainted |= 2; | |
447ee134 | 292 | sv_catsv_nomg(dstr, POPs); |
2c296965 YO |
293 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
294 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
295 | |
296 | /* Are we done */ | |
2c296965 YO |
297 | if (CxONCE(cx) || s < orig || |
298 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
299 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
300 | ((cx->sb_rflags & REXEC_COPY_STR) | |
301 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) | |
302 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 303 | { |
823a54a3 | 304 | SV * const targ = cx->sb_targ; |
748a9306 | 305 | |
078c425b JH |
306 | assert(cx->sb_strend >= s); |
307 | if(cx->sb_strend > s) { | |
308 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
309 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
310 | else | |
311 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
312 | } | |
48c036b1 | 313 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 314 | |
f8c7b90f | 315 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
316 | if (SvIsCOW(targ)) { |
317 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
318 | } else | |
319 | #endif | |
320 | { | |
8bd4d4c5 | 321 | SvPV_free(targ); |
ed252734 | 322 | } |
f880fe2f | 323 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
324 | SvCUR_set(targ, SvCUR(dstr)); |
325 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
326 | if (DO_UTF8(dstr)) |
327 | SvUTF8_on(targ); | |
6136c704 | 328 | SvPV_set(dstr, NULL); |
48c036b1 GS |
329 | |
330 | TAINT_IF(cx->sb_rxtainted & 1); | |
4f4d7508 DC |
331 | if (pm->op_pmflags & PMf_NONDESTRUCT) |
332 | PUSHs(targ); | |
333 | else | |
334 | mPUSHi(saviters - 1); | |
48c036b1 | 335 | |
ffc61ed2 | 336 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 337 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 338 | SvSETMAGIC(targ); |
9212bbba | 339 | SvTAINT(targ); |
5cd24f17 | 340 | |
4633a7c4 | 341 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
342 | POPSUBST(cx); |
343 | RETURNOP(pm->op_next); | |
344 | } | |
8e5e9ebe | 345 | cx->sb_iters = saviters; |
a0d0e21e | 346 | } |
07bc277f | 347 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
348 | m = s; |
349 | s = orig; | |
07bc277f | 350 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
351 | s = orig + (m - s); |
352 | cx->sb_strend = s + (cx->sb_strend - m); | |
353 | } | |
07bc277f | 354 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 355 | if (m > s) { |
bfed75c6 | 356 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
357 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
358 | else | |
359 | sv_catpvn(dstr, s, m-s); | |
360 | } | |
07bc277f | 361 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 362 | { /* Update the pos() information. */ |
44f8325f | 363 | SV * const sv = cx->sb_targ; |
084916e3 | 364 | MAGIC *mg; |
7a7f3e45 | 365 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 366 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 367 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 368 | if (SvIsCOW(sv)) |
d83f0a82 NC |
369 | sv_force_normal_flags(sv, 0); |
370 | #endif | |
371 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
372 | NULL, 0); | |
084916e3 | 373 | } |
ce474962 | 374 | mg->mg_len = m - orig; |
084916e3 | 375 | } |
988e6e7e | 376 | if (old != rx) |
d6106309 | 377 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
378 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
379 | rxres_save(&cx->sb_rxres, rx); | |
29f2e912 | 380 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
381 | } |
382 | ||
c90c0ff4 | 383 | void |
864dbfa3 | 384 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 PP |
385 | { |
386 | UV *p = (UV*)*rsp; | |
387 | U32 i; | |
7918f24d NC |
388 | |
389 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 390 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 391 | |
07bc277f | 392 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 393 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 394 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 395 | #else |
07bc277f | 396 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 397 | #endif |
c90c0ff4 | 398 | if (!p) |
a02a5408 | 399 | Newx(p, i, UV); |
c90c0ff4 PP |
400 | else |
401 | Renew(p, i, UV); | |
402 | *rsp = (void*)p; | |
403 | } | |
404 | ||
07bc277f | 405 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 406 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 407 | |
f8c7b90f | 408 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
409 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
410 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
411 | #endif |
412 | ||
07bc277f | 413 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 414 | |
07bc277f NC |
415 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
416 | *p++ = (UV)RX_SUBLEN(rx); | |
417 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
418 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
419 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 PP |
420 | } |
421 | } | |
422 | ||
9c105995 NC |
423 | static void |
424 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 PP |
425 | { |
426 | UV *p = (UV*)*rsp; | |
427 | U32 i; | |
7918f24d NC |
428 | |
429 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 430 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 431 | |
ed252734 | 432 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 433 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 PP |
434 | *p++ = 0; |
435 | ||
f8c7b90f | 436 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
437 | if (RX_SAVED_COPY(rx)) |
438 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
439 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
440 | *p++ = 0; |
441 | #endif | |
442 | ||
07bc277f | 443 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 444 | |
07bc277f NC |
445 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
446 | RX_SUBLEN(rx) = (I32)(*p++); | |
447 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
448 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
449 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 PP |
450 | } |
451 | } | |
452 | ||
9c105995 NC |
453 | static void |
454 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 455 | { |
44f8325f | 456 | UV * const p = (UV*)*rsp; |
7918f24d NC |
457 | |
458 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 459 | PERL_UNUSED_CONTEXT; |
c90c0ff4 PP |
460 | |
461 | if (p) { | |
94010e71 NC |
462 | #ifdef PERL_POISON |
463 | void *tmp = INT2PTR(char*,*p); | |
464 | Safefree(tmp); | |
465 | if (*p) | |
7e337ee0 | 466 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 467 | #else |
56431972 | 468 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 469 | #endif |
f8c7b90f | 470 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
471 | if (p[1]) { |
472 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
473 | } | |
474 | #endif | |
c90c0ff4 | 475 | Safefree(p); |
4608196e | 476 | *rsp = NULL; |
c90c0ff4 PP |
477 | } |
478 | } | |
479 | ||
a0d0e21e LW |
480 | PP(pp_formline) |
481 | { | |
97aff369 | 482 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 483 | register SV * const tmpForm = *++MARK; |
dea28490 | 484 | register U32 *fpc; |
a0d0e21e | 485 | register char *t; |
245d4a47 | 486 | const char *f; |
a0d0e21e | 487 | register I32 arg; |
c445ea15 AL |
488 | register SV *sv = NULL; |
489 | const char *item = NULL; | |
9c5ffd7c JH |
490 | I32 itemsize = 0; |
491 | I32 fieldsize = 0; | |
a0d0e21e | 492 | I32 lines = 0; |
c445ea15 AL |
493 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
494 | const char *chophere = NULL; | |
495 | char *linemark = NULL; | |
65202027 | 496 | NV value; |
9c5ffd7c | 497 | bool gotsome = FALSE; |
a0d0e21e | 498 | STRLEN len; |
823a54a3 | 499 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 500 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
501 | bool item_is_utf8 = FALSE; |
502 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 503 | SV * nsv = NULL; |
cbbf8932 | 504 | OP * parseres = NULL; |
bfed75c6 | 505 | const char *fmt; |
a0d0e21e | 506 | |
76e3520e | 507 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
508 | if (SvREADONLY(tmpForm)) { |
509 | SvREADONLY_off(tmpForm); | |
a1b95068 | 510 | parseres = doparseform(tmpForm); |
445b3f51 GS |
511 | SvREADONLY_on(tmpForm); |
512 | } | |
513 | else | |
a1b95068 LW |
514 | parseres = doparseform(tmpForm); |
515 | if (parseres) | |
516 | return parseres; | |
a0d0e21e | 517 | } |
3280af22 | 518 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
519 | if (DO_UTF8(PL_formtarget)) |
520 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 521 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 522 | t += len; |
245d4a47 | 523 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 524 | /* need to jump to the next word */ |
245d4a47 | 525 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
526 | |
527 | for (;;) { | |
528 | DEBUG_f( { | |
bfed75c6 | 529 | const char *name = "???"; |
a0d0e21e LW |
530 | arg = -1; |
531 | switch (*fpc) { | |
532 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
533 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
534 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
535 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
536 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
537 | ||
538 | case FF_CHECKNL: name = "CHECKNL"; break; | |
539 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
540 | case FF_SPACE: name = "SPACE"; break; | |
541 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
542 | case FF_ITEM: name = "ITEM"; break; | |
543 | case FF_CHOP: name = "CHOP"; break; | |
544 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
545 | case FF_NEWLINE: name = "NEWLINE"; break; | |
546 | case FF_MORE: name = "MORE"; break; | |
547 | case FF_LINEMARK: name = "LINEMARK"; break; | |
548 | case FF_END: name = "END"; break; | |
bfed75c6 | 549 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 550 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
551 | } |
552 | if (arg >= 0) | |
bf49b057 | 553 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 554 | else |
bf49b057 | 555 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 556 | } ); |
a0d0e21e LW |
557 | switch (*fpc++) { |
558 | case FF_LINEMARK: | |
559 | linemark = t; | |
a0d0e21e LW |
560 | lines++; |
561 | gotsome = FALSE; | |
562 | break; | |
563 | ||
564 | case FF_LITERAL: | |
565 | arg = *fpc++; | |
1bd51a4c | 566 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 567 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
568 | *t = '\0'; |
569 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
570 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 571 | f += arg; |
1bd51a4c IH |
572 | break; |
573 | } | |
574 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 575 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 576 | *t = '\0'; |
7bf79863 | 577 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
578 | t = SvEND(PL_formtarget); |
579 | targ_is_utf8 = TRUE; | |
580 | } | |
a0d0e21e LW |
581 | while (arg--) |
582 | *t++ = *f++; | |
583 | break; | |
584 | ||
585 | case FF_SKIP: | |
586 | f += *fpc++; | |
587 | break; | |
588 | ||
589 | case FF_FETCH: | |
590 | arg = *fpc++; | |
591 | f += arg; | |
592 | fieldsize = arg; | |
593 | ||
594 | if (MARK < SP) | |
595 | sv = *++MARK; | |
596 | else { | |
3280af22 | 597 | sv = &PL_sv_no; |
a2a5de95 | 598 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
599 | } |
600 | break; | |
601 | ||
602 | case FF_CHECKNL: | |
5a34cab7 NC |
603 | { |
604 | const char *send; | |
605 | const char *s = item = SvPV_const(sv, len); | |
606 | itemsize = len; | |
607 | if (DO_UTF8(sv)) { | |
608 | itemsize = sv_len_utf8(sv); | |
609 | if (itemsize != (I32)len) { | |
610 | I32 itembytes; | |
611 | if (itemsize > fieldsize) { | |
612 | itemsize = fieldsize; | |
613 | itembytes = itemsize; | |
614 | sv_pos_u2b(sv, &itembytes, 0); | |
615 | } | |
616 | else | |
617 | itembytes = len; | |
618 | send = chophere = s + itembytes; | |
619 | while (s < send) { | |
620 | if (*s & ~31) | |
621 | gotsome = TRUE; | |
622 | else if (*s == '\n') | |
623 | break; | |
624 | s++; | |
625 | } | |
626 | item_is_utf8 = TRUE; | |
627 | itemsize = s - item; | |
628 | sv_pos_b2u(sv, &itemsize); | |
629 | break; | |
a0ed51b3 | 630 | } |
a0ed51b3 | 631 | } |
5a34cab7 NC |
632 | item_is_utf8 = FALSE; |
633 | if (itemsize > fieldsize) | |
634 | itemsize = fieldsize; | |
635 | send = chophere = s + itemsize; | |
636 | while (s < send) { | |
637 | if (*s & ~31) | |
638 | gotsome = TRUE; | |
639 | else if (*s == '\n') | |
640 | break; | |
641 | s++; | |
642 | } | |
643 | itemsize = s - item; | |
644 | break; | |
a0ed51b3 | 645 | } |
a0d0e21e LW |
646 | |
647 | case FF_CHECKCHOP: | |
5a34cab7 NC |
648 | { |
649 | const char *s = item = SvPV_const(sv, len); | |
650 | itemsize = len; | |
651 | if (DO_UTF8(sv)) { | |
652 | itemsize = sv_len_utf8(sv); | |
653 | if (itemsize != (I32)len) { | |
654 | I32 itembytes; | |
655 | if (itemsize <= fieldsize) { | |
656 | const char *send = chophere = s + itemsize; | |
657 | while (s < send) { | |
658 | if (*s == '\r') { | |
659 | itemsize = s - item; | |
a0ed51b3 | 660 | chophere = s; |
a0ed51b3 | 661 | break; |
5a34cab7 NC |
662 | } |
663 | if (*s++ & ~31) | |
a0ed51b3 | 664 | gotsome = TRUE; |
a0ed51b3 | 665 | } |
a0ed51b3 | 666 | } |
5a34cab7 NC |
667 | else { |
668 | const char *send; | |
669 | itemsize = fieldsize; | |
670 | itembytes = itemsize; | |
671 | sv_pos_u2b(sv, &itembytes, 0); | |
672 | send = chophere = s + itembytes; | |
673 | while (s < send || (s == send && isSPACE(*s))) { | |
674 | if (isSPACE(*s)) { | |
675 | if (chopspace) | |
676 | chophere = s; | |
677 | if (*s == '\r') | |
678 | break; | |
679 | } | |
680 | else { | |
681 | if (*s & ~31) | |
682 | gotsome = TRUE; | |
683 | if (strchr(PL_chopset, *s)) | |
684 | chophere = s + 1; | |
685 | } | |
686 | s++; | |
687 | } | |
688 | itemsize = chophere - item; | |
689 | sv_pos_b2u(sv, &itemsize); | |
690 | } | |
691 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
692 | break; |
693 | } | |
a0d0e21e | 694 | } |
5a34cab7 NC |
695 | item_is_utf8 = FALSE; |
696 | if (itemsize <= fieldsize) { | |
697 | const char *const send = chophere = s + itemsize; | |
698 | while (s < send) { | |
699 | if (*s == '\r') { | |
700 | itemsize = s - item; | |
a0d0e21e | 701 | chophere = s; |
a0d0e21e | 702 | break; |
5a34cab7 NC |
703 | } |
704 | if (*s++ & ~31) | |
a0d0e21e | 705 | gotsome = TRUE; |
a0d0e21e | 706 | } |
a0d0e21e | 707 | } |
5a34cab7 NC |
708 | else { |
709 | const char *send; | |
710 | itemsize = fieldsize; | |
711 | send = chophere = s + itemsize; | |
712 | while (s < send || (s == send && isSPACE(*s))) { | |
713 | if (isSPACE(*s)) { | |
714 | if (chopspace) | |
715 | chophere = s; | |
716 | if (*s == '\r') | |
717 | break; | |
718 | } | |
719 | else { | |
720 | if (*s & ~31) | |
721 | gotsome = TRUE; | |
722 | if (strchr(PL_chopset, *s)) | |
723 | chophere = s + 1; | |
724 | } | |
725 | s++; | |
726 | } | |
727 | itemsize = chophere - item; | |
728 | } | |
729 | break; | |
a0d0e21e | 730 | } |
a0d0e21e LW |
731 | |
732 | case FF_SPACE: | |
733 | arg = fieldsize - itemsize; | |
734 | if (arg) { | |
735 | fieldsize -= arg; | |
736 | while (arg-- > 0) | |
737 | *t++ = ' '; | |
738 | } | |
739 | break; | |
740 | ||
741 | case FF_HALFSPACE: | |
742 | arg = fieldsize - itemsize; | |
743 | if (arg) { | |
744 | arg /= 2; | |
745 | fieldsize -= arg; | |
746 | while (arg-- > 0) | |
747 | *t++ = ' '; | |
748 | } | |
749 | break; | |
750 | ||
751 | case FF_ITEM: | |
5a34cab7 NC |
752 | { |
753 | const char *s = item; | |
754 | arg = itemsize; | |
755 | if (item_is_utf8) { | |
756 | if (!targ_is_utf8) { | |
757 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
758 | *t = '\0'; | |
7bf79863 KW |
759 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
760 | fudge + 1); | |
5a34cab7 NC |
761 | t = SvEND(PL_formtarget); |
762 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 763 | } |
5a34cab7 NC |
764 | while (arg--) { |
765 | if (UTF8_IS_CONTINUED(*s)) { | |
766 | STRLEN skip = UTF8SKIP(s); | |
767 | switch (skip) { | |
768 | default: | |
769 | Move(s,t,skip,char); | |
770 | s += skip; | |
771 | t += skip; | |
772 | break; | |
773 | case 7: *t++ = *s++; | |
774 | case 6: *t++ = *s++; | |
775 | case 5: *t++ = *s++; | |
776 | case 4: *t++ = *s++; | |
777 | case 3: *t++ = *s++; | |
778 | case 2: *t++ = *s++; | |
779 | case 1: *t++ = *s++; | |
780 | } | |
781 | } | |
782 | else { | |
783 | if ( !((*t++ = *s++) & ~31) ) | |
784 | t[-1] = ' '; | |
785 | } | |
a0ed51b3 | 786 | } |
5a34cab7 | 787 | break; |
a0ed51b3 | 788 | } |
5a34cab7 NC |
789 | if (targ_is_utf8 && !item_is_utf8) { |
790 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
791 | *t = '\0'; | |
792 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
793 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 794 | #ifdef EBCDIC |
901017d6 | 795 | const int ch = *t; |
5a34cab7 | 796 | if (iscntrl(ch)) |
78da4d13 | 797 | #else |
5a34cab7 | 798 | if (!(*t & ~31)) |
78da4d13 | 799 | #endif |
5a34cab7 NC |
800 | *t = ' '; |
801 | } | |
802 | break; | |
78da4d13 | 803 | } |
5a34cab7 | 804 | while (arg--) { |
9d116dd7 | 805 | #ifdef EBCDIC |
901017d6 | 806 | const int ch = *t++ = *s++; |
5a34cab7 | 807 | if (iscntrl(ch)) |
a0d0e21e | 808 | #else |
5a34cab7 | 809 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 810 | #endif |
5a34cab7 NC |
811 | t[-1] = ' '; |
812 | } | |
813 | break; | |
a0d0e21e | 814 | } |
a0d0e21e LW |
815 | |
816 | case FF_CHOP: | |
5a34cab7 NC |
817 | { |
818 | const char *s = chophere; | |
819 | if (chopspace) { | |
af68e756 | 820 | while (isSPACE(*s)) |
5a34cab7 NC |
821 | s++; |
822 | } | |
823 | sv_chop(sv,s); | |
824 | SvSETMAGIC(sv); | |
825 | break; | |
a0d0e21e | 826 | } |
a0d0e21e | 827 | |
a1b95068 LW |
828 | case FF_LINESNGL: |
829 | chopspace = 0; | |
a0d0e21e | 830 | case FF_LINEGLOB: |
5a34cab7 | 831 | { |
e32383e2 | 832 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 833 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 834 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 835 | itemsize = len; |
5a34cab7 | 836 | if (itemsize) { |
e8e72d41 | 837 | STRLEN to_copy = itemsize; |
5a34cab7 | 838 | const char *const send = s + len; |
35c6393c | 839 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
840 | U8 *tmp = NULL; |
841 | ||
5a34cab7 NC |
842 | gotsome = TRUE; |
843 | chophere = s + itemsize; | |
844 | while (s < send) { | |
845 | if (*s++ == '\n') { | |
846 | if (oneline) { | |
e8e72d41 | 847 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
848 | chophere = s; |
849 | break; | |
850 | } else { | |
851 | if (s == send) { | |
852 | itemsize--; | |
e8e72d41 | 853 | to_copy--; |
5a34cab7 NC |
854 | } else |
855 | lines++; | |
856 | } | |
1bd51a4c | 857 | } |
a0d0e21e | 858 | } |
e8e72d41 | 859 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 860 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
861 | SvCUR_set(PL_formtarget, |
862 | t - SvPVX_const(PL_formtarget)); | |
863 | } else { | |
864 | if (item_is_utf8 && !targ_is_utf8) { | |
865 | /* Upgrade targ to UTF8, and then we reduce it to | |
866 | a problem we have a simple solution for. */ | |
867 | SvCUR_set(PL_formtarget, | |
868 | t - SvPVX_const(PL_formtarget)); | |
869 | targ_is_utf8 = TRUE; | |
870 | /* Don't need get magic. */ | |
7bf79863 | 871 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
872 | } else { |
873 | SvCUR_set(PL_formtarget, | |
874 | t - SvPVX_const(PL_formtarget)); | |
875 | } | |
e8e72d41 NC |
876 | |
877 | /* Easy. They agree. */ | |
878 | assert (item_is_utf8 == targ_is_utf8); | |
879 | } | |
880 | SvGROW(PL_formtarget, | |
881 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 882 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
883 | |
884 | Copy(source, t, to_copy, char); | |
885 | t += to_copy; | |
886 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 887 | if (item_is_utf8) { |
e8e72d41 NC |
888 | if (SvGMAGICAL(sv)) { |
889 | /* Mustn't call sv_pos_b2u() as it does a second | |
890 | mg_get(). Is this a bug? Do we need a _flags() | |
891 | variant? */ | |
892 | itemsize = utf8_length(source, source + itemsize); | |
893 | } else { | |
894 | sv_pos_b2u(sv, &itemsize); | |
895 | } | |
896 | assert(!tmp); | |
897 | } else if (tmp) { | |
898 | Safefree(tmp); | |
f3f2f1a3 | 899 | } |
a0d0e21e | 900 | } |
5a34cab7 | 901 | break; |
a0d0e21e | 902 | } |
a0d0e21e | 903 | |
a1b95068 LW |
904 | case FF_0DECIMAL: |
905 | arg = *fpc++; | |
906 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
907 | fmt = (const char *) |
908 | ((arg & 256) ? | |
909 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 910 | #else |
10edeb5d JH |
911 | fmt = (const char *) |
912 | ((arg & 256) ? | |
913 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 LW |
914 | #endif |
915 | goto ff_dec; | |
a0d0e21e | 916 | case FF_DECIMAL: |
a0d0e21e | 917 | arg = *fpc++; |
65202027 | 918 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
919 | fmt = (const char *) |
920 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 921 | #else |
10edeb5d JH |
922 | fmt = (const char *) |
923 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 924 | #endif |
a1b95068 | 925 | ff_dec: |
784707d5 JP |
926 | /* If the field is marked with ^ and the value is undefined, |
927 | blank it out. */ | |
784707d5 JP |
928 | if ((arg & 512) && !SvOK(sv)) { |
929 | arg = fieldsize; | |
930 | while (arg--) | |
931 | *t++ = ' '; | |
932 | break; | |
933 | } | |
934 | gotsome = TRUE; | |
935 | value = SvNV(sv); | |
a1b95068 | 936 | /* overflow evidence */ |
bfed75c6 | 937 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 LW |
938 | arg = fieldsize; |
939 | while (arg--) | |
940 | *t++ = '#'; | |
941 | break; | |
942 | } | |
784707d5 JP |
943 | /* Formats aren't yet marked for locales, so assume "yes". */ |
944 | { | |
945 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 946 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
947 | RESTORE_NUMERIC_STANDARD(); |
948 | } | |
949 | t += fieldsize; | |
950 | break; | |
a1b95068 | 951 | |
a0d0e21e LW |
952 | case FF_NEWLINE: |
953 | f++; | |
954 | while (t-- > linemark && *t == ' ') ; | |
955 | t++; | |
956 | *t++ = '\n'; | |
957 | break; | |
958 | ||
959 | case FF_BLANK: | |
960 | arg = *fpc++; | |
961 | if (gotsome) { | |
962 | if (arg) { /* repeat until fields exhausted? */ | |
963 | *t = '\0'; | |
b15aece3 | 964 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 965 | lines += FmLINES(PL_formtarget); |
1bd51a4c IH |
966 | if (targ_is_utf8) |
967 | SvUTF8_on(PL_formtarget); | |
3280af22 | 968 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
969 | SP = ORIGMARK; |
970 | RETURNOP(cLISTOP->op_first); | |
971 | } | |
972 | } | |
973 | else { | |
974 | t = linemark; | |
975 | lines--; | |
976 | } | |
977 | break; | |
978 | ||
979 | case FF_MORE: | |
5a34cab7 NC |
980 | { |
981 | const char *s = chophere; | |
982 | const char *send = item + len; | |
983 | if (chopspace) { | |
af68e756 | 984 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 985 | s++; |
a0d0e21e | 986 | } |
5a34cab7 NC |
987 | if (s < send) { |
988 | char *s1; | |
989 | arg = fieldsize - itemsize; | |
990 | if (arg) { | |
991 | fieldsize -= arg; | |
992 | while (arg-- > 0) | |
993 | *t++ = ' '; | |
994 | } | |
995 | s1 = t - 3; | |
996 | if (strnEQ(s1," ",3)) { | |
997 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
998 | s1--; | |
999 | } | |
1000 | *s1++ = '.'; | |
1001 | *s1++ = '.'; | |
1002 | *s1++ = '.'; | |
a0d0e21e | 1003 | } |
5a34cab7 | 1004 | break; |
a0d0e21e | 1005 | } |
a0d0e21e LW |
1006 | case FF_END: |
1007 | *t = '\0'; | |
b15aece3 | 1008 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
1009 | if (targ_is_utf8) |
1010 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1011 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
1012 | SP = ORIGMARK; |
1013 | RETPUSHYES; | |
1014 | } | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | PP(pp_grepstart) | |
1019 | { | |
27da23d5 | 1020 | dVAR; dSP; |
a0d0e21e LW |
1021 | SV *src; |
1022 | ||
3280af22 | 1023 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 1024 | (void)POPMARK; |
54310121 | 1025 | if (GIMME_V == G_SCALAR) |
6e449a3a | 1026 | mXPUSHi(0); |
533c011a | 1027 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 1028 | } |
3280af22 | 1029 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
1030 | pp_pushmark(); /* push dst */ |
1031 | pp_pushmark(); /* push src */ | |
d343c3ef | 1032 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
1033 | |
1034 | SAVETMPS; | |
59f00321 RGS |
1035 | if (PL_op->op_private & OPpGREP_LEX) |
1036 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1037 | else | |
1038 | SAVE_DEFSV; | |
d343c3ef | 1039 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1040 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1041 | |
3280af22 | 1042 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1043 | SvTEMP_off(src); |
59f00321 RGS |
1044 | if (PL_op->op_private & OPpGREP_LEX) |
1045 | PAD_SVl(PL_op->op_targ) = src; | |
1046 | else | |
414bf5ae | 1047 | DEFSV_set(src); |
a0d0e21e LW |
1048 | |
1049 | PUTBACK; | |
533c011a | 1050 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 1051 | pp_pushmark(); /* push top */ |
533c011a | 1052 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1053 | } |
1054 | ||
a0d0e21e LW |
1055 | PP(pp_mapwhile) |
1056 | { | |
27da23d5 | 1057 | dVAR; dSP; |
f54cb97a | 1058 | const I32 gimme = GIMME_V; |
544f3153 | 1059 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1060 | I32 count; |
1061 | I32 shift; | |
1062 | SV** src; | |
ac27b0f5 | 1063 | SV** dst; |
a0d0e21e | 1064 | |
544f3153 | 1065 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1066 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1067 | |
1068 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1069 | if (items && gimme != G_VOID) { |
544f3153 GS |
1070 | /* might need to make room back there first */ |
1071 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1072 | /* XXX this implementation is very pessimal because the stack | |
1073 | * is repeatedly extended for every set of items. Is possible | |
1074 | * to do this without any stack extension or copying at all | |
1075 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1076 | * (like foreach does). --gsar */ |
544f3153 GS |
1077 | |
1078 | /* everything in the stack after the destination list moves | |
1079 | * towards the end the stack by the amount of room needed */ | |
1080 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1081 | ||
1082 | /* items to shift up (accounting for the moved source pointer) */ | |
1083 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1084 | |
1085 | /* This optimization is by Ben Tilly and it does | |
1086 | * things differently from what Sarathy (gsar) | |
1087 | * is describing. The downside of this optimization is | |
1088 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1089 | * to the Perl stack, but on the other hand this | |
1090 | * shouldn't be a problem. If Sarathy's idea gets | |
1091 | * implemented, this optimization should become | |
1092 | * irrelevant. --jhi */ | |
1093 | if (shift < count) | |
1094 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1095 | |
924508f0 GS |
1096 | EXTEND(SP,shift); |
1097 | src = SP; | |
1098 | dst = (SP += shift); | |
3280af22 NIS |
1099 | PL_markstack_ptr[-1] += shift; |
1100 | *PL_markstack_ptr += shift; | |
544f3153 | 1101 | while (count--) |
a0d0e21e LW |
1102 | *dst-- = *src--; |
1103 | } | |
544f3153 | 1104 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1105 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1106 | if (gimme == G_ARRAY) { |
1107 | while (items-- > 0) | |
1108 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1109 | } | |
bfed75c6 | 1110 | else { |
22023b26 TP |
1111 | /* scalar context: we don't care about which values map returns |
1112 | * (we use undef here). And so we certainly don't want to do mortal | |
1113 | * copies of meaningless values. */ | |
1114 | while (items-- > 0) { | |
b988aa42 | 1115 | (void)POPs; |
22023b26 TP |
1116 | *dst-- = &PL_sv_undef; |
1117 | } | |
1118 | } | |
a0d0e21e | 1119 | } |
d343c3ef | 1120 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1121 | |
1122 | /* All done yet? */ | |
3280af22 | 1123 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1124 | |
1125 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1126 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1127 | (void)POPMARK; /* pop src */ |
3280af22 | 1128 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1129 | (void)POPMARK; /* pop dst */ |
3280af22 | 1130 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1131 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1132 | if (PL_op->op_private & OPpGREP_LEX) { |
1133 | SV* sv = sv_newmortal(); | |
1134 | sv_setiv(sv, items); | |
1135 | PUSHs(sv); | |
1136 | } | |
1137 | else { | |
1138 | dTARGET; | |
1139 | XPUSHi(items); | |
1140 | } | |
a0d0e21e | 1141 | } |
54310121 PP |
1142 | else if (gimme == G_ARRAY) |
1143 | SP += items; | |
a0d0e21e LW |
1144 | RETURN; |
1145 | } | |
1146 | else { | |
1147 | SV *src; | |
1148 | ||
d343c3ef | 1149 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1150 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1151 | |
544f3153 | 1152 | /* set $_ to the new source item */ |
3280af22 | 1153 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1154 | SvTEMP_off(src); |
59f00321 RGS |
1155 | if (PL_op->op_private & OPpGREP_LEX) |
1156 | PAD_SVl(PL_op->op_targ) = src; | |
1157 | else | |
414bf5ae | 1158 | DEFSV_set(src); |
a0d0e21e LW |
1159 | |
1160 | RETURNOP(cLOGOP->op_other); | |
1161 | } | |
1162 | } | |
1163 | ||
a0d0e21e LW |
1164 | /* Range stuff. */ |
1165 | ||
1166 | PP(pp_range) | |
1167 | { | |
97aff369 | 1168 | dVAR; |
a0d0e21e | 1169 | if (GIMME == G_ARRAY) |
1a67a97c | 1170 | return NORMAL; |
538573f7 | 1171 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1172 | return cLOGOP->op_other; |
538573f7 | 1173 | else |
1a67a97c | 1174 | return NORMAL; |
a0d0e21e LW |
1175 | } |
1176 | ||
1177 | PP(pp_flip) | |
1178 | { | |
97aff369 | 1179 | dVAR; |
39644a26 | 1180 | dSP; |
a0d0e21e LW |
1181 | |
1182 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1183 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1184 | } |
1185 | else { | |
1186 | dTOPss; | |
44f8325f | 1187 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1188 | int flip = 0; |
790090df | 1189 | |
bfed75c6 | 1190 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1191 | if (GvIO(PL_last_in_gv)) { |
1192 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1193 | } | |
1194 | else { | |
fafc274c | 1195 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1196 | if (gv && GvSV(gv)) |
1197 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1198 | } |
bfed75c6 AL |
1199 | } else { |
1200 | flip = SvTRUE(sv); | |
1201 | } | |
1202 | if (flip) { | |
a0d0e21e | 1203 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1204 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1205 | sv_setiv(targ, 1); |
3e3baf6d | 1206 | SETs(targ); |
a0d0e21e LW |
1207 | RETURN; |
1208 | } | |
1209 | else { | |
1210 | sv_setiv(targ, 0); | |
924508f0 | 1211 | SP--; |
1a67a97c | 1212 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1213 | } |
1214 | } | |
76f68e9b | 1215 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1216 | SETs(targ); |
1217 | RETURN; | |
1218 | } | |
1219 | } | |
1220 | ||
8e9bbdb9 RGS |
1221 | /* This code tries to decide if "$left .. $right" should use the |
1222 | magical string increment, or if the range is numeric (we make | |
1223 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1224 | ||
1225 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1226 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1227 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1228 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1229 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1230 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1231 | |
a0d0e21e LW |
1232 | PP(pp_flop) |
1233 | { | |
97aff369 | 1234 | dVAR; dSP; |
a0d0e21e LW |
1235 | |
1236 | if (GIMME == G_ARRAY) { | |
1237 | dPOPPOPssrl; | |
86cb7173 | 1238 | |
5b295bef RD |
1239 | SvGETMAGIC(left); |
1240 | SvGETMAGIC(right); | |
a0d0e21e | 1241 | |
8e9bbdb9 | 1242 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1243 | register IV i, j; |
1244 | IV max; | |
4fe3f0fa MHM |
1245 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1246 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1247 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1248 | i = SvIV(left); |
1249 | max = SvIV(right); | |
bbce6d69 | 1250 | if (max >= i) { |
c1ab3db2 AK |
1251 | j = max - i + 1; |
1252 | EXTEND_MORTAL(j); | |
1253 | EXTEND(SP, j); | |
bbce6d69 | 1254 | } |
c1ab3db2 AK |
1255 | else |
1256 | j = 0; | |
1257 | while (j--) { | |
901017d6 | 1258 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1259 | PUSHs(sv); |
1260 | } | |
1261 | } | |
1262 | else { | |
44f8325f | 1263 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1264 | STRLEN len; |
823a54a3 | 1265 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1266 | |
901017d6 | 1267 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1268 | SvPV_force_nolen(sv); |
89ea2908 | 1269 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1270 | XPUSHs(sv); |
b15aece3 | 1271 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1272 | break; |
a0d0e21e LW |
1273 | sv = sv_2mortal(newSVsv(sv)); |
1274 | sv_inc(sv); | |
1275 | } | |
a0d0e21e LW |
1276 | } |
1277 | } | |
1278 | else { | |
1279 | dTOPss; | |
901017d6 | 1280 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1281 | int flop = 0; |
a0d0e21e | 1282 | sv_inc(targ); |
4e3399f9 YST |
1283 | |
1284 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1285 | if (GvIO(PL_last_in_gv)) { | |
1286 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1287 | } | |
1288 | else { | |
fafc274c | 1289 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1290 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1291 | } | |
1292 | } | |
1293 | else { | |
1294 | flop = SvTRUE(sv); | |
1295 | } | |
1296 | ||
1297 | if (flop) { | |
a0d0e21e | 1298 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1299 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1300 | } |
1301 | SETs(targ); | |
1302 | } | |
1303 | ||
1304 | RETURN; | |
1305 | } | |
1306 | ||
1307 | /* Control. */ | |
1308 | ||
27da23d5 | 1309 | static const char * const context_name[] = { |
515afda2 | 1310 | "pseudo-block", |
f31522f3 | 1311 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1312 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1313 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1314 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1315 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1316 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1317 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1318 | "subroutine", |
76753e7f | 1319 | "format", |
515afda2 | 1320 | "eval", |
515afda2 | 1321 | "substitution", |
515afda2 NC |
1322 | }; |
1323 | ||
76e3520e | 1324 | STATIC I32 |
06b5626a | 1325 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1326 | { |
97aff369 | 1327 | dVAR; |
a0d0e21e | 1328 | register I32 i; |
a0d0e21e | 1329 | |
7918f24d NC |
1330 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1331 | ||
a0d0e21e | 1332 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1333 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1334 | switch (CxTYPE(cx)) { |
a0d0e21e | 1335 | case CXt_SUBST: |
a0d0e21e | 1336 | case CXt_SUB: |
7766f137 | 1337 | case CXt_FORMAT: |
a0d0e21e | 1338 | case CXt_EVAL: |
0a753a76 | 1339 | case CXt_NULL: |
a2a5de95 NC |
1340 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1341 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1342 | if (CxTYPE(cx) == CXt_NULL) |
1343 | return -1; | |
1344 | break; | |
c6fdafd0 | 1345 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1346 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1347 | case CXt_LOOP_FOR: |
1348 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1349 | { |
1350 | const char *cx_label = CxLABEL(cx); | |
1351 | if (!cx_label || strNE(label, cx_label) ) { | |
1c98cc53 | 1352 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1353 | (long)i, cx_label)); |
a0d0e21e LW |
1354 | continue; |
1355 | } | |
1c98cc53 | 1356 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1357 | return i; |
7e8f1eac | 1358 | } |
a0d0e21e LW |
1359 | } |
1360 | } | |
1361 | return i; | |
1362 | } | |
1363 | ||
0d863452 RH |
1364 | |
1365 | ||
e50aee73 | 1366 | I32 |
864dbfa3 | 1367 | Perl_dowantarray(pTHX) |
e50aee73 | 1368 | { |
97aff369 | 1369 | dVAR; |
f54cb97a | 1370 | const I32 gimme = block_gimme(); |
54310121 PP |
1371 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1372 | } | |
1373 | ||
1374 | I32 | |
864dbfa3 | 1375 | Perl_block_gimme(pTHX) |
54310121 | 1376 | { |
97aff369 | 1377 | dVAR; |
06b5626a | 1378 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1379 | if (cxix < 0) |
46fc3d4c | 1380 | return G_VOID; |
e50aee73 | 1381 | |
54310121 | 1382 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1383 | case G_VOID: |
1384 | return G_VOID; | |
54310121 | 1385 | case G_SCALAR: |
e50aee73 | 1386 | return G_SCALAR; |
54310121 PP |
1387 | case G_ARRAY: |
1388 | return G_ARRAY; | |
1389 | default: | |
cea2e8a9 | 1390 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1391 | /* NOTREACHED */ |
1392 | return 0; | |
54310121 | 1393 | } |
e50aee73 AD |
1394 | } |
1395 | ||
78f9721b SM |
1396 | I32 |
1397 | Perl_is_lvalue_sub(pTHX) | |
1398 | { | |
97aff369 | 1399 | dVAR; |
06b5626a | 1400 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1401 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1402 | ||
bafb2adc NC |
1403 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1404 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1405 | else |
1406 | return 0; | |
1407 | } | |
1408 | ||
76e3520e | 1409 | STATIC I32 |
901017d6 | 1410 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1411 | { |
97aff369 | 1412 | dVAR; |
a0d0e21e | 1413 | I32 i; |
7918f24d NC |
1414 | |
1415 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1416 | ||
a0d0e21e | 1417 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1418 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1419 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1420 | default: |
1421 | continue; | |
1422 | case CXt_EVAL: | |
1423 | case CXt_SUB: | |
7766f137 | 1424 | case CXt_FORMAT: |
1c98cc53 | 1425 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1426 | return i; |
1427 | } | |
1428 | } | |
1429 | return i; | |
1430 | } | |
1431 | ||
76e3520e | 1432 | STATIC I32 |
cea2e8a9 | 1433 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1434 | { |
97aff369 | 1435 | dVAR; |
a0d0e21e | 1436 | I32 i; |
a0d0e21e | 1437 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1438 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1439 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1440 | default: |
1441 | continue; | |
1442 | case CXt_EVAL: | |
1c98cc53 | 1443 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1444 | return i; |
1445 | } | |
1446 | } | |
1447 | return i; | |
1448 | } | |
1449 | ||
76e3520e | 1450 | STATIC I32 |
cea2e8a9 | 1451 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1452 | { |
97aff369 | 1453 | dVAR; |
a0d0e21e | 1454 | I32 i; |
a0d0e21e | 1455 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1456 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1457 | switch (CxTYPE(cx)) { |
a0d0e21e | 1458 | case CXt_SUBST: |
a0d0e21e | 1459 | case CXt_SUB: |
7766f137 | 1460 | case CXt_FORMAT: |
a0d0e21e | 1461 | case CXt_EVAL: |
0a753a76 | 1462 | case CXt_NULL: |
a2a5de95 NC |
1463 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1464 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1465 | if ((CxTYPE(cx)) == CXt_NULL) |
1466 | return -1; | |
1467 | break; | |
c6fdafd0 | 1468 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1469 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1470 | case CXt_LOOP_FOR: |
1471 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1472 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1473 | return i; |
1474 | } | |
1475 | } | |
1476 | return i; | |
1477 | } | |
1478 | ||
0d863452 RH |
1479 | STATIC I32 |
1480 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1481 | { | |
97aff369 | 1482 | dVAR; |
0d863452 RH |
1483 | I32 i; |
1484 | for (i = startingblock; i >= 0; i--) { | |
1485 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1486 | switch (CxTYPE(cx)) { | |
1487 | default: | |
1488 | continue; | |
1489 | case CXt_GIVEN: | |
1c98cc53 | 1490 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1491 | return i; |
3b719c58 NC |
1492 | case CXt_LOOP_PLAIN: |
1493 | assert(!CxFOREACHDEF(cx)); | |
1494 | break; | |
c6fdafd0 | 1495 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1496 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1497 | case CXt_LOOP_FOR: |
0d863452 | 1498 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1499 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1500 | return i; |
1501 | } | |
1502 | } | |
1503 | } | |
1504 | return i; | |
1505 | } | |
1506 | ||
1507 | STATIC I32 | |
1508 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1509 | { | |
97aff369 | 1510 | dVAR; |
0d863452 RH |
1511 | I32 i; |
1512 | for (i = startingblock; i >= 0; i--) { | |
1513 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1514 | switch (CxTYPE(cx)) { | |
1515 | default: | |
1516 | continue; | |
1517 | case CXt_WHEN: | |
1c98cc53 | 1518 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1519 | return i; |
1520 | } | |
1521 | } | |
1522 | return i; | |
1523 | } | |
1524 | ||
a0d0e21e | 1525 | void |
864dbfa3 | 1526 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1527 | { |
97aff369 | 1528 | dVAR; |
a0d0e21e LW |
1529 | I32 optype; |
1530 | ||
1531 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1532 | SV *sv; |
06b5626a | 1533 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1534 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1535 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1536 | switch (CxTYPE(cx)) { |
c90c0ff4 PP |
1537 | case CXt_SUBST: |
1538 | POPSUBST(cx); | |
1539 | continue; /* not break */ | |
a0d0e21e | 1540 | case CXt_SUB: |
b0d9ce38 GS |
1541 | POPSUB(cx,sv); |
1542 | LEAVESUB(sv); | |
a0d0e21e LW |
1543 | break; |
1544 | case CXt_EVAL: | |
1545 | POPEVAL(cx); | |
1546 | break; | |
c6fdafd0 | 1547 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1548 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1549 | case CXt_LOOP_FOR: |
1550 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1551 | POPLOOP(cx); |
1552 | break; | |
0a753a76 | 1553 | case CXt_NULL: |
a0d0e21e | 1554 | break; |
7766f137 GS |
1555 | case CXt_FORMAT: |
1556 | POPFORMAT(cx); | |
1557 | break; | |
a0d0e21e | 1558 | } |
c90c0ff4 | 1559 | cxstack_ix--; |
a0d0e21e | 1560 | } |
1b6737cc | 1561 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1562 | } |
1563 | ||
5a844595 GS |
1564 | void |
1565 | Perl_qerror(pTHX_ SV *err) | |
1566 | { | |
97aff369 | 1567 | dVAR; |
7918f24d NC |
1568 | |
1569 | PERL_ARGS_ASSERT_QERROR; | |
1570 | ||
5a844595 GS |
1571 | if (PL_in_eval) |
1572 | sv_catsv(ERRSV, err); | |
1573 | else if (PL_errors) | |
1574 | sv_catsv(PL_errors, err); | |
1575 | else | |
be2597df | 1576 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1577 | if (PL_parser) |
1578 | ++PL_parser->error_count; | |
5a844595 GS |
1579 | } |
1580 | ||
bb4c52e0 | 1581 | void |
c5df3096 | 1582 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1583 | { |
27da23d5 | 1584 | dVAR; |
c5df3096 | 1585 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1586 | U8 in_eval = PL_in_eval; |
c5df3096 | 1587 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1588 | |
96d9b9cd | 1589 | if (in_eval) { |
a0d0e21e | 1590 | I32 cxix; |
a0d0e21e | 1591 | I32 gimme; |
a0d0e21e | 1592 | |
5a844595 GS |
1593 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1594 | && PL_curstackinfo->si_prev) | |
1595 | { | |
bac4b2ad | 1596 | dounwind(-1); |
d3acc0f7 | 1597 | POPSTACK; |
bac4b2ad | 1598 | } |
e336de0d | 1599 | |
a0d0e21e LW |
1600 | if (cxix >= 0) { |
1601 | I32 optype; | |
b6494f15 | 1602 | SV *namesv; |
35a4481c | 1603 | register PERL_CONTEXT *cx; |
901017d6 | 1604 | SV **newsp; |
a0d0e21e LW |
1605 | |
1606 | if (cxix < cxstack_ix) | |
1607 | dounwind(cxix); | |
1608 | ||
3280af22 | 1609 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1610 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1611 | STRLEN msglen; |
96d9b9cd | 1612 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1613 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1614 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1615 | my_exit(1); |
1616 | } | |
1617 | POPEVAL(cx); | |
b6494f15 | 1618 | namesv = cx->blk_eval.old_namesv; |
a0d0e21e LW |
1619 | |
1620 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1621 | *++newsp = &PL_sv_undef; |
1622 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1623 | |
1624 | LEAVE; | |
748a9306 | 1625 | |
7fb6a879 GS |
1626 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1627 | * XXX it might be better to find a way to avoid messing with | |
1628 | * PL_curcop in save_re_context() instead, but this is a more | |
1629 | * minimal fix --GSAR */ | |
1630 | PL_curcop = cx->blk_oldcop; | |
1631 | ||
7a2e2cd6 | 1632 | if (optype == OP_REQUIRE) { |
96d9b9cd | 1633 | const char* const msg = SvPVx_nolen_const(exceptsv); |
b6494f15 VP |
1634 | (void)hv_store(GvHVn(PL_incgv), |
1635 | SvPVX_const(namesv), SvCUR(namesv), | |
27bcc0a7 | 1636 | &PL_sv_undef, 0); |
27e90453 DM |
1637 | /* note that unlike pp_entereval, pp_require isn't |
1638 | * supposed to trap errors. So now that we've popped the | |
1639 | * EVAL that pp_require pushed, and processed the error | |
1640 | * message, rethrow the error */ | |
9fed9930 NC |
1641 | Perl_croak(aTHX_ "%sCompilation failed in require", |
1642 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1643 | } |
c5df3096 | 1644 | if (in_eval & EVAL_KEEPERR) { |
7ce09284 Z |
1645 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", |
1646 | SvPV_nolen_const(exceptsv)); | |
96d9b9cd Z |
1647 | } |
1648 | else { | |
1649 | sv_setsv(ERRSV, exceptsv); | |
1650 | } | |
f39bc417 | 1651 | assert(CxTYPE(cx) == CXt_EVAL); |
febb3a6d | 1652 | PL_restartjmpenv = cx->blk_eval.cur_top_env; |
bb4c52e0 GG |
1653 | PL_restartop = cx->blk_eval.retop; |
1654 | JMPENV_JUMP(3); | |
1655 | /* NOTREACHED */ | |
a0d0e21e LW |
1656 | } |
1657 | } | |
87582a92 | 1658 | |
96d9b9cd | 1659 | write_to_stderr(exceptsv); |
f86702cc PP |
1660 | my_failure_exit(); |
1661 | /* NOTREACHED */ | |
a0d0e21e LW |
1662 | } |
1663 | ||
1664 | PP(pp_xor) | |
1665 | { | |
97aff369 | 1666 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1667 | if (SvTRUE(left) != SvTRUE(right)) |
1668 | RETSETYES; | |
1669 | else | |
1670 | RETSETNO; | |
1671 | } | |
1672 | ||
8dff4fc5 BM |
1673 | /* |
1674 | =for apidoc caller_cx | |
1675 | ||
1676 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1677 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1678 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1679 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1680 | immediately-surrounding Perl code. | |
1681 | ||
1682 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1683 | behalf of the debugger. If the stack frame requested was a sub called by | |
1684 | C<DB::sub>, the return value will be the frame for the call to | |
1685 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1686 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1687 | frame for the sub call itself. | |
1688 | ||
1689 | =cut | |
1690 | */ | |
1691 | ||
1692 | const PERL_CONTEXT * | |
1693 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1694 | { |
a0d0e21e | 1695 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1696 | register const PERL_CONTEXT *cx; |
1697 | register const PERL_CONTEXT *ccstack = cxstack; | |
1698 | const PERL_SI *top_si = PL_curstackinfo; | |
27d41816 | 1699 | |
a0d0e21e | 1700 | for (;;) { |
2c375eb9 GS |
1701 | /* we may be in a higher stacklevel, so dig down deeper */ |
1702 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1703 | top_si = top_si->si_prev; | |
1704 | ccstack = top_si->si_cxstack; | |
1705 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1706 | } | |
8dff4fc5 BM |
1707 | if (cxix < 0) |
1708 | return NULL; | |
f2a7f298 | 1709 | /* caller() should not report the automatic calls to &DB::sub */ |
1710 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1711 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1712 | count++; |
1713 | if (!count--) | |
1714 | break; | |
2c375eb9 | 1715 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1716 | } |
2c375eb9 GS |
1717 | |
1718 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1719 | if (dbcxp) *dbcxp = cx; |
1720 | ||
7766f137 | 1721 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1722 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1723 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1724 | field below is defined for any cx. */ |
f2a7f298 | 1725 | /* caller() should not report the automatic calls to &DB::sub */ |
1726 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1727 | cx = &ccstack[dbcxix]; |
06a5b730 PP |
1728 | } |
1729 | ||
8dff4fc5 BM |
1730 | return cx; |
1731 | } | |
1732 | ||
1733 | PP(pp_caller) | |
1734 | { | |
1735 | dVAR; | |
1736 | dSP; | |
1737 | register const PERL_CONTEXT *cx; | |
1738 | const PERL_CONTEXT *dbcx; | |
1739 | I32 gimme; | |
1740 | const char *stashname; | |
1741 | I32 count = 0; | |
1742 | ||
1743 | if (MAXARG) | |
1744 | count = POPi; | |
1745 | ||
1746 | cx = caller_cx(count, &dbcx); | |
1747 | if (!cx) { | |
1748 | if (GIMME != G_ARRAY) { | |
1749 | EXTEND(SP, 1); | |
1750 | RETPUSHUNDEF; | |
1751 | } | |
1752 | RETURN; | |
1753 | } | |
1754 | ||
ed094faf | 1755 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1756 | if (GIMME != G_ARRAY) { |
27d41816 | 1757 | EXTEND(SP, 1); |
ed094faf | 1758 | if (!stashname) |
3280af22 | 1759 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1760 | else { |
1761 | dTARGET; | |
ed094faf | 1762 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1763 | PUSHs(TARG); |
1764 | } | |
a0d0e21e LW |
1765 | RETURN; |
1766 | } | |
a0d0e21e | 1767 | |
b3ca2e83 | 1768 | EXTEND(SP, 11); |
27d41816 | 1769 | |
ed094faf | 1770 | if (!stashname) |
3280af22 | 1771 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1772 | else |
6e449a3a MHM |
1773 | mPUSHs(newSVpv(stashname, 0)); |
1774 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1775 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1776 | if (!MAXARG) |
1777 | RETURN; | |
7766f137 | 1778 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1779 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1780 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1781 | if (isGV(cvgv)) { |
561b68a9 | 1782 | SV * const sv = newSV(0); |
c445ea15 | 1783 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1784 | mPUSHs(sv); |
bf38a478 | 1785 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1786 | } |
1787 | else { | |
84bafc02 | 1788 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1789 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1790 | } |
a0d0e21e LW |
1791 | } |
1792 | else { | |
84bafc02 | 1793 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1794 | mPUSHi(0); |
a0d0e21e | 1795 | } |
54310121 PP |
1796 | gimme = (I32)cx->blk_gimme; |
1797 | if (gimme == G_VOID) | |
3280af22 | 1798 | PUSHs(&PL_sv_undef); |
54310121 | 1799 | else |
98625aca | 1800 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1801 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1802 | /* eval STRING */ |
85a64632 | 1803 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1804 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1805 | PUSHs(&PL_sv_no); |
0f79a09d | 1806 | } |
811a4de9 | 1807 | /* require */ |
0f79a09d | 1808 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1809 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1810 | PUSHs(&PL_sv_yes); |
06a5b730 | 1811 | } |
811a4de9 GS |
1812 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1813 | else { | |
1814 | PUSHs(&PL_sv_undef); | |
1815 | PUSHs(&PL_sv_undef); | |
1816 | } | |
4633a7c4 | 1817 | } |
a682de96 GS |
1818 | else { |
1819 | PUSHs(&PL_sv_undef); | |
1820 | PUSHs(&PL_sv_undef); | |
1821 | } | |
bafb2adc | 1822 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1823 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1824 | { |
66a1b24b AL |
1825 | AV * const ary = cx->blk_sub.argarray; |
1826 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1827 | |
5b235299 NC |
1828 | if (!PL_dbargs) |
1829 | Perl_init_dbargs(aTHX); | |
a0d0e21e | 1830 | |
3280af22 NIS |
1831 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1832 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1833 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1834 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1835 | } |
f3aa04c2 GS |
1836 | /* XXX only hints propagated via op_private are currently |
1837 | * visible (others are not easily accessible, since they | |
1838 | * use the global PL_hints) */ | |
6e449a3a | 1839 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1840 | { |
1841 | SV * mask ; | |
72dc9ed5 | 1842 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1843 | |
ac27b0f5 | 1844 | if (old_warnings == pWARN_NONE || |
114bafba | 1845 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1846 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1847 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1848 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1849 | /* Get the bit mask for $warnings::Bits{all}, because | |
1850 | * it could have been extended by warnings::register */ | |
1851 | SV **bits_all; | |
6673a63c | 1852 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1853 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1854 | mask = newSVsv(*bits_all); |
1855 | } | |
1856 | else { | |
1857 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1858 | } | |
1859 | } | |
e476b1b5 | 1860 | else |
72dc9ed5 | 1861 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1862 | mPUSHs(mask); |
e476b1b5 | 1863 | } |
b3ca2e83 | 1864 | |
c28fe1ec | 1865 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1866 | sv_2mortal(newRV_noinc( |
ad64d0ec NC |
1867 | MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_ |
1868 | cx->blk_oldcop->cop_hints_hash)))) | |
b3ca2e83 | 1869 | : &PL_sv_undef); |
a0d0e21e LW |
1870 | RETURN; |
1871 | } | |
1872 | ||
a0d0e21e LW |
1873 | PP(pp_reset) |
1874 | { | |
97aff369 | 1875 | dVAR; |
39644a26 | 1876 | dSP; |
10edeb5d | 1877 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1878 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1879 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1880 | RETURN; |
1881 | } | |
1882 | ||
dd2155a4 DM |
1883 | /* like pp_nextstate, but used instead when the debugger is active */ |
1884 | ||
a0d0e21e LW |
1885 | PP(pp_dbstate) |
1886 | { | |
27da23d5 | 1887 | dVAR; |
533c011a | 1888 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1889 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1890 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1891 | FREETMPS; |
1892 | ||
f410a211 NC |
1893 | PERL_ASYNC_CHECK(); |
1894 | ||
5df8de69 DM |
1895 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1896 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1897 | { |
39644a26 | 1898 | dSP; |
c09156bb | 1899 | register PERL_CONTEXT *cx; |
f54cb97a | 1900 | const I32 gimme = G_ARRAY; |
eb160463 | 1901 | U8 hasargs; |
0bd48802 AL |
1902 | GV * const gv = PL_DBgv; |
1903 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1904 | |
a0d0e21e | 1905 | if (!cv) |
cea2e8a9 | 1906 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1907 | |
aea4f609 DM |
1908 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1909 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1910 | return NORMAL; |
748a9306 | 1911 | |
a57c6685 | 1912 | ENTER; |
4633a7c4 LW |
1913 | SAVETMPS; |
1914 | ||
3280af22 | 1915 | SAVEI32(PL_debug); |
55497cff | 1916 | SAVESTACK_POS(); |
3280af22 | 1917 | PL_debug = 0; |
748a9306 | 1918 | hasargs = 0; |
924508f0 | 1919 | SPAGAIN; |
748a9306 | 1920 | |
aed2304a | 1921 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1922 | CvDEPTH(cv)++; |
1923 | PUSHMARK(SP); | |
1924 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1925 | CvDEPTH(cv)--; | |
1926 | FREETMPS; | |
a57c6685 | 1927 | LEAVE; |
c127bd3a SF |
1928 | return NORMAL; |
1929 | } | |
1930 | else { | |
1931 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1932 | PUSHSUB_DB(cx); | |
1933 | cx->blk_sub.retop = PL_op->op_next; | |
1934 | CvDEPTH(cv)++; | |
1935 | SAVECOMPPAD(); | |
1936 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1937 | RETURNOP(CvSTART(cv)); | |
1938 | } | |
a0d0e21e LW |
1939 | } |
1940 | else | |
1941 | return NORMAL; | |
1942 | } | |
1943 | ||
a0d0e21e LW |
1944 | PP(pp_enteriter) |
1945 | { | |
27da23d5 | 1946 | dVAR; dSP; dMARK; |
c09156bb | 1947 | register PERL_CONTEXT *cx; |
f54cb97a | 1948 | const I32 gimme = GIMME_V; |
df530c37 | 1949 | void *itervar; /* location of the iteration variable */ |
840fe433 | 1950 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 1951 | |
d343c3ef | 1952 | ENTER_with_name("loop1"); |
4633a7c4 LW |
1953 | SAVETMPS; |
1954 | ||
aafca525 DM |
1955 | if (PL_op->op_targ) { /* "my" variable */ |
1956 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
1957 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
1958 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1959 | SVs_PADSTALE, SVs_PADSTALE); | |
1960 | } | |
09edbca0 | 1961 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 1962 | #ifdef USE_ITHREADS |
df530c37 | 1963 | itervar = PL_comppad; |
89e00a7c | 1964 | #else |
aafca525 | 1965 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 1966 | #endif |
54b9620d | 1967 | } |
aafca525 | 1968 | else { /* symbol table variable */ |
159b6efe | 1969 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
1970 | SV** svp = &GvSV(gv); |
1971 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 1972 | *svp = newSV(0); |
df530c37 | 1973 | itervar = (void *)gv; |
54b9620d | 1974 | } |
4633a7c4 | 1975 | |
0d863452 RH |
1976 | if (PL_op->op_private & OPpITER_DEF) |
1977 | cxtype |= CXp_FOR_DEF; | |
1978 | ||
d343c3ef | 1979 | ENTER_with_name("loop2"); |
a0d0e21e | 1980 | |
7766f137 | 1981 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 1982 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 1983 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
1984 | SV *maybe_ary = POPs; |
1985 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 1986 | dPOPss; |
d01136d6 | 1987 | SV * const right = maybe_ary; |
984a4bea RD |
1988 | SvGETMAGIC(sv); |
1989 | SvGETMAGIC(right); | |
4fe3f0fa | 1990 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 1991 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
1992 | cx->cx_type |= CXt_LOOP_LAZYIV; |
1993 | /* Make sure that no-one re-orders cop.h and breaks our | |
1994 | assumptions */ | |
1995 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
1996 | #ifdef NV_PRESERVES_UV |
1997 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
1998 | (SvNV(sv) > (NV)IV_MAX))) | |
1999 | || | |
2000 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
2001 | (SvNV(right) < (NV)IV_MIN)))) | |
2002 | #else | |
2003 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
2004 | || | |
2005 | ((SvNV(sv) > 0) && | |
2006 | ((SvUV(sv) > (UV)IV_MAX) || | |
2007 | (SvNV(sv) > (NV)UV_MAX))))) | |
2008 | || | |
2009 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
2010 | || | |
2011 | ((SvNV(right) > 0) && | |
2012 | ((SvUV(right) > (UV)IV_MAX) || | |
2013 | (SvNV(right) > (NV)UV_MAX)))))) | |
2014 | #endif | |
076d9a11 | 2015 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
2016 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
2017 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
2018 | #ifdef DEBUGGING |
2019 | /* for correct -Dstv display */ | |
2020 | cx->blk_oldsp = sp - PL_stack_base; | |
2021 | #endif | |
89ea2908 | 2022 | } |
3f63a782 | 2023 | else { |
d01136d6 BS |
2024 | cx->cx_type &= ~CXTYPEMASK; |
2025 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2026 | /* Make sure that no-one re-orders cop.h and breaks our | |
2027 | assumptions */ | |
2028 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2029 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2030 | cx->blk_loop.state_u.lazysv.end = right; | |
2031 | SvREFCNT_inc(right); | |
2032 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2033 | /* This will do the upgrade to SVt_PV, and warn if the value |
2034 | is uninitialised. */ | |
10516c54 | 2035 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2036 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2037 | to replace !SvOK() with a pointer to "". */ | |
2038 | if (!SvOK(right)) { | |
2039 | SvREFCNT_dec(right); | |
d01136d6 | 2040 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2041 | } |
3f63a782 | 2042 | } |
89ea2908 | 2043 | } |
d01136d6 | 2044 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2045 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2046 | SvREFCNT_inc(maybe_ary); |
2047 | cx->blk_loop.state_u.ary.ix = | |
2048 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2049 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2050 | -1; | |
ef3e5ea9 | 2051 | } |
89ea2908 | 2052 | } |
d01136d6 BS |
2053 | else { /* iterating over items on the stack */ |
2054 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2055 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2056 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2057 | } |
2058 | else { | |
d01136d6 | 2059 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2060 | } |
4633a7c4 | 2061 | } |
a0d0e21e LW |
2062 | |
2063 | RETURN; | |
2064 | } | |
2065 | ||
2066 | PP(pp_enterloop) | |
2067 | { | |
27da23d5 | 2068 | dVAR; dSP; |
c09156bb | 2069 | register PERL_CONTEXT *cx; |
f54cb97a | 2070 | const I32 gimme = GIMME_V; |
a0d0e21e | 2071 | |
d343c3ef | 2072 | ENTER_with_name("loop1"); |
a0d0e21e | 2073 | SAVETMPS; |
d343c3ef | 2074 | ENTER_with_name("loop2"); |
a0d0e21e | 2075 | |
3b719c58 NC |
2076 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2077 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2078 | |
2079 | RETURN; | |
2080 | } | |
2081 | ||
2082 | PP(pp_leaveloop) | |
2083 | { | |
27da23d5 | 2084 | dVAR; dSP; |
c09156bb | 2085 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2086 | I32 gimme; |
2087 | SV **newsp; | |
2088 | PMOP *newpm; | |
2089 | SV **mark; | |
2090 | ||
2091 | POPBLOCK(cx,newpm); | |
3b719c58 | 2092 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2093 | mark = newsp; |
a8bba7fa | 2094 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2095 | |
a1f49e72 | 2096 | TAINT_NOT; |
54310121 | 2097 | if (gimme == G_VOID) |
6f207bd3 | 2098 | NOOP; |
54310121 PP |
2099 | else if (gimme == G_SCALAR) { |
2100 | if (mark < SP) | |
2101 | *++newsp = sv_mortalcopy(*SP); | |
2102 | else | |
3280af22 | 2103 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2104 | } |
2105 | else { | |
a1f49e72 | 2106 | while (mark < SP) { |
a0d0e21e | 2107 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2108 | TAINT_NOT; /* Each item is independent */ |
2109 | } | |
a0d0e21e | 2110 | } |
f86702cc PP |
2111 | SP = newsp; |
2112 | PUTBACK; | |
2113 | ||
a8bba7fa | 2114 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2115 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2116 | |
d343c3ef GG |
2117 | LEAVE_with_name("loop2"); |
2118 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2119 | |
f86702cc | 2120 | return NORMAL; |
a0d0e21e LW |
2121 | } |
2122 | ||
2123 | PP(pp_return) | |
2124 | { | |
27da23d5 | 2125 | dVAR; dSP; dMARK; |
c09156bb | 2126 | register PERL_CONTEXT *cx; |
f86702cc | 2127 | bool popsub2 = FALSE; |
b45de488 | 2128 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2129 | I32 gimme; |
2130 | SV **newsp; | |
2131 | PMOP *newpm; | |
2132 | I32 optype = 0; | |
b6494f15 | 2133 | SV *namesv; |
b0d9ce38 | 2134 | SV *sv; |
b263a1ad | 2135 | OP *retop = NULL; |
a0d0e21e | 2136 | |
0bd48802 AL |
2137 | const I32 cxix = dopoptosub(cxstack_ix); |
2138 | ||
9850bf21 RH |
2139 | if (cxix < 0) { |
2140 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2141 | * sort block, which is a CXt_NULL | |
2142 | * not a CXt_SUB */ | |
2143 | dounwind(0); | |
d7507f74 RH |
2144 | PL_stack_base[1] = *PL_stack_sp; |
2145 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2146 | return 0; |
2147 | } | |
9850bf21 RH |
2148 | else |
2149 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2150 | } |
a0d0e21e LW |
2151 | if (cxix < cxstack_ix) |
2152 | dounwind(cxix); | |
2153 | ||
d7507f74 RH |
2154 | if (CxMULTICALL(&cxstack[cxix])) { |
2155 | gimme = cxstack[cxix].blk_gimme; | |
2156 | if (gimme == G_VOID) | |
2157 | PL_stack_sp = PL_stack_base; | |
2158 | else if (gimme == G_SCALAR) { | |
2159 | PL_stack_base[1] = *PL_stack_sp; | |
2160 | PL_stack_sp = PL_stack_base + 1; | |
2161 | } | |
9850bf21 | 2162 | return 0; |
d7507f74 | 2163 | } |
9850bf21 | 2164 | |
a0d0e21e | 2165 | POPBLOCK(cx,newpm); |
6b35e009 | 2166 | switch (CxTYPE(cx)) { |
a0d0e21e | 2167 | case CXt_SUB: |
f86702cc | 2168 | popsub2 = TRUE; |
f39bc417 | 2169 | retop = cx->blk_sub.retop; |
5dd42e15 | 2170 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2171 | break; |
2172 | case CXt_EVAL: | |
b45de488 GS |
2173 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2174 | clear_errsv = TRUE; | |
a0d0e21e | 2175 | POPEVAL(cx); |
b6494f15 | 2176 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2177 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2178 | if (CxTRYBLOCK(cx)) |
2179 | break; | |
067f92a0 | 2180 | lex_end(); |
748a9306 LW |
2181 | if (optype == OP_REQUIRE && |
2182 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2183 | { | |
54310121 | 2184 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
2185 | (void)hv_delete(GvHVn(PL_incgv), |
2186 | SvPVX_const(namesv), SvCUR(namesv), | |
2187 | G_DISCARD); | |
2188 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2189 | } |
a0d0e21e | 2190 | break; |
7766f137 GS |
2191 | case CXt_FORMAT: |
2192 | POPFORMAT(cx); | |
f39bc417 | 2193 | retop = cx->blk_sub.retop; |
7766f137 | 2194 | break; |
a0d0e21e | 2195 | default: |
cea2e8a9 | 2196 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2197 | } |
2198 | ||
a1f49e72 | 2199 | TAINT_NOT; |
a0d0e21e | 2200 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2201 | if (MARK < SP) { |
2202 | if (popsub2) { | |
a8bba7fa | 2203 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2204 | if (SvTEMP(TOPs)) { |
2205 | *++newsp = SvREFCNT_inc(*SP); | |
2206 | FREETMPS; | |
2207 | sv_2mortal(*newsp); | |
959e3673 GS |
2208 | } |
2209 | else { | |
2210 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2211 | FREETMPS; |
959e3673 GS |
2212 | *++newsp = sv_mortalcopy(sv); |
2213 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2214 | } |
959e3673 GS |
2215 | } |
2216 | else | |
a29cdaf0 | 2217 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2218 | } |
2219 | else | |
a29cdaf0 | 2220 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2221 | } |
2222 | else | |
3280af22 | 2223 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2224 | } |
54310121 | 2225 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2226 | while (++MARK <= SP) { |
f86702cc PP |
2227 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2228 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2229 | TAINT_NOT; /* Each item is independent */ |
2230 | } | |
a0d0e21e | 2231 | } |
3280af22 | 2232 | PL_stack_sp = newsp; |
a0d0e21e | 2233 | |
5dd42e15 | 2234 | LEAVE; |
f86702cc PP |
2235 | /* Stack values are safe: */ |
2236 | if (popsub2) { | |
5dd42e15 | 2237 | cxstack_ix--; |
b0d9ce38 | 2238 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2239 | } |
b0d9ce38 | 2240 | else |
c445ea15 | 2241 | sv = NULL; |
3280af22 | 2242 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2243 | |
b0d9ce38 | 2244 | LEAVESUB(sv); |
8433848b | 2245 | if (clear_errsv) { |
ab69dbc2 | 2246 | CLEAR_ERRSV(); |
8433848b | 2247 | } |
f39bc417 | 2248 | return retop; |
a0d0e21e LW |
2249 | } |
2250 | ||
2251 | PP(pp_last) | |
2252 | { | |
27da23d5 | 2253 | dVAR; dSP; |
a0d0e21e | 2254 | I32 cxix; |
c09156bb | 2255 | register PERL_CONTEXT *cx; |
f86702cc | 2256 | I32 pop2 = 0; |
a0d0e21e | 2257 | I32 gimme; |
8772537c | 2258 | I32 optype; |
b263a1ad | 2259 | OP *nextop = NULL; |
a0d0e21e LW |
2260 | SV **newsp; |
2261 | PMOP *newpm; | |
a8bba7fa | 2262 | SV **mark; |
c445ea15 | 2263 | SV *sv = NULL; |
9d4ba2ae | 2264 | |
a0d0e21e | 2265 | |
533c011a | 2266 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2267 | cxix = dopoptoloop(cxstack_ix); |
2268 | if (cxix < 0) | |
a651a37d | 2269 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2270 | } |
2271 | else { | |
2272 | cxix = dopoptolabel(cPVOP->op_pv); | |
2273 | if (cxix < 0) | |
cea2e8a9 | 2274 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2275 | } |
2276 | if (cxix < cxstack_ix) | |
2277 | dounwind(cxix); | |
2278 | ||
2279 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2280 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2281 | mark = newsp; |
6b35e009 | 2282 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2283 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2284 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2285 | case CXt_LOOP_FOR: |
2286 | case CXt_LOOP_PLAIN: | |
2287 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2288 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2289 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2290 | break; |
f86702cc | 2291 | case CXt_SUB: |
f86702cc | 2292 | pop2 = CXt_SUB; |
f39bc417 | 2293 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2294 | break; |
f86702cc PP |
2295 | case CXt_EVAL: |
2296 | POPEVAL(cx); | |
f39bc417 | 2297 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2298 | break; |
7766f137 GS |
2299 | case CXt_FORMAT: |
2300 | POPFORMAT(cx); | |
f39bc417 | 2301 | nextop = cx->blk_sub.retop; |
7766f137 | 2302 | break; |
a0d0e21e | 2303 | default: |
cea2e8a9 | 2304 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2305 | } |
2306 | ||
a1f49e72 | 2307 | TAINT_NOT; |
a0d0e21e | 2308 | if (gimme == G_SCALAR) { |
f86702cc PP |
2309 | if (MARK < SP) |
2310 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2311 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2312 | else |
3280af22 | 2313 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2314 | } |
54310121 | 2315 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2316 | while (++MARK <= SP) { |
f86702cc PP |
2317 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2318 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2319 | TAINT_NOT; /* Each item is independent */ |
2320 | } | |
f86702cc PP |
2321 | } |
2322 | SP = newsp; | |
2323 | PUTBACK; | |
2324 | ||
5dd42e15 DM |
2325 | LEAVE; |
2326 | cxstack_ix--; | |
f86702cc PP |
2327 | /* Stack values are safe: */ |
2328 | switch (pop2) { | |
c6fdafd0 | 2329 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2330 | case CXt_LOOP_PLAIN: |
d01136d6 | 2331 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2332 | case CXt_LOOP_FOR: |
a8bba7fa | 2333 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2334 | LEAVE; |
f86702cc PP |
2335 | break; |
2336 | case CXt_SUB: | |
b0d9ce38 | 2337 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2338 | break; |
a0d0e21e | 2339 | } |
3280af22 | 2340 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2341 | |
b0d9ce38 | 2342 | LEAVESUB(sv); |
9d4ba2ae AL |
2343 | PERL_UNUSED_VAR(optype); |
2344 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2345 | return nextop; |
a0d0e21e LW |
2346 | } |
2347 | ||
2348 | PP(pp_next) | |
2349 | { | |
27da23d5 | 2350 | dVAR; |
a0d0e21e | 2351 | I32 cxix; |
c09156bb | 2352 | register PERL_CONTEXT *cx; |
85538317 | 2353 | I32 inner; |
a0d0e21e | 2354 | |
533c011a | 2355 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2356 | cxix = dopoptoloop(cxstack_ix); |
2357 | if (cxix < 0) | |
a651a37d | 2358 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2359 | } |
2360 | else { | |
2361 | cxix = dopoptolabel(cPVOP->op_pv); | |
2362 | if (cxix < 0) | |
cea2e8a9 | 2363 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2364 | } |
2365 | if (cxix < cxstack_ix) | |
2366 | dounwind(cxix); | |
2367 | ||
85538317 GS |
2368 | /* clear off anything above the scope we're re-entering, but |
2369 | * save the rest until after a possible continue block */ | |
2370 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2371 | TOPBLOCK(cx); |
85538317 GS |
2372 | if (PL_scopestack_ix < inner) |
2373 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2374 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2375 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2376 | } |
2377 | ||
2378 | PP(pp_redo) | |
2379 | { | |
27da23d5 | 2380 | dVAR; |
a0d0e21e | 2381 | I32 cxix; |
c09156bb | 2382 | register PERL_CONTEXT *cx; |
a0d0e21e | 2383 | I32 oldsave; |
a034e688 | 2384 | OP* redo_op; |
a0d0e21e | 2385 | |
533c011a | 2386 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2387 | cxix = dopoptoloop(cxstack_ix); |
2388 | if (cxix < 0) | |
a651a37d | 2389 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2390 | } |
2391 | else { | |
2392 | cxix = dopoptolabel(cPVOP->op_pv); | |
2393 | if (cxix < 0) | |
cea2e8a9 | 2394 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2395 | } |
2396 | if (cxix < cxstack_ix) | |
2397 | dounwind(cxix); | |
2398 | ||
022eaa24 | 2399 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2400 | if (redo_op->op_type == OP_ENTER) { |
2401 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2402 | cxstack_ix++; | |
2403 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2404 | redo_op = redo_op->op_next; | |
2405 | } | |
2406 | ||
a0d0e21e | 2407 | TOPBLOCK(cx); |
3280af22 | 2408 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2409 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2410 | FREETMPS; |
3a1b2b9e | 2411 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2412 | return redo_op; |
a0d0e21e LW |
2413 | } |
2414 | ||
0824fdcb | 2415 | STATIC OP * |
bfed75c6 | 2416 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2417 | { |
97aff369 | 2418 | dVAR; |
a0d0e21e | 2419 | OP **ops = opstack; |
bfed75c6 | 2420 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2421 | |
7918f24d NC |
2422 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2423 | ||
fc36a67e | 2424 | if (ops >= oplimit) |
cea2e8a9 | 2425 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2426 | if (o->op_type == OP_LEAVE || |
2427 | o->op_type == OP_SCOPE || | |
2428 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2429 | o->op_type == OP_LEAVESUB || |
11343788 | 2430 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2431 | { |
5dc0d613 | 2432 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2433 | if (ops >= oplimit) |
cea2e8a9 | 2434 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2435 | } |
c4aa4e48 | 2436 | *ops = 0; |
11343788 | 2437 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2438 | OP *kid; |
a0d0e21e | 2439 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2440 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2441 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2442 | const char *kid_label = CopLABEL(kCOP); | |
2443 | if (kid_label && strEQ(kid_label, label)) | |
2444 | return kid; | |
2445 | } | |
a0d0e21e | 2446 | } |
11343788 | 2447 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2448 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2449 | continue; |
ed8d0fe2 SM |
2450 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2451 | if (ops == opstack) | |
2452 | *ops++ = kid; | |
2453 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2454 | ops[-1]->op_type == OP_DBSTATE) | |
2455 | ops[-1] = kid; | |
2456 | else | |
2457 | *ops++ = kid; | |
2458 | } | |
155aba94 | 2459 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2460 | return o; |
a0d0e21e LW |
2461 | } |
2462 | } | |
c4aa4e48 | 2463 | *ops = 0; |
a0d0e21e LW |
2464 | return 0; |
2465 | } | |
2466 | ||
a0d0e21e LW |
2467 | PP(pp_goto) |
2468 | { | |
27da23d5 | 2469 | dVAR; dSP; |
cbbf8932 | 2470 | OP *retop = NULL; |
a0d0e21e | 2471 | I32 ix; |
c09156bb | 2472 | register PERL_CONTEXT *cx; |
fc36a67e PP |
2473 | #define GOTO_DEPTH 64 |
2474 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2475 | const char *label = NULL; |
bfed75c6 AL |
2476 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2477 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2478 | |
533c011a | 2479 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2480 | SV * const sv = POPs; |
a0d0e21e LW |
2481 | |
2482 | /* This egregious kludge implements goto &subroutine */ | |
2483 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2484 | I32 cxix; | |
c09156bb | 2485 | register PERL_CONTEXT *cx; |
ea726b52 | 2486 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2487 | SV** mark; |
2488 | I32 items = 0; | |
2489 | I32 oldsave; | |
b1464ded | 2490 | bool reified = 0; |
a0d0e21e | 2491 | |
e8f7dd13 | 2492 | retry: |
4aa0a1f7 | 2493 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2494 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2495 | if (gv) { |
7fc63493 | 2496 | GV *autogv; |
e8f7dd13 GS |
2497 | SV *tmpstr; |
2498 | /* autoloaded stub? */ | |
2499 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2500 | goto retry; | |
2501 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2502 | GvNAMELEN(gv), FALSE); | |
2503 | if (autogv && (cv = GvCV(autogv))) | |
2504 | goto retry; | |
2505 | tmpstr = sv_newmortal(); | |
c445ea15 | 2506 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2507 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2508 | } |
cea2e8a9 | 2509 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2510 | } |
2511 | ||
a0d0e21e | 2512 | /* First do some returnish stuff. */ |
b37c2d43 | 2513 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2514 | FREETMPS; |
a0d0e21e LW |
2515 | cxix = dopoptosub(cxstack_ix); |
2516 | if (cxix < 0) | |
cea2e8a9 | 2517 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2518 | if (cxix < cxstack_ix) |
2519 | dounwind(cxix); | |
2520 | TOPBLOCK(cx); | |
2d43a17f | 2521 | SPAGAIN; |
564abe23 | 2522 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2523 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2524 | if (CxREALEVAL(cx)) |
2525 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2526 | else | |
2527 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2528 | } |
9850bf21 RH |
2529 | else if (CxMULTICALL(cx)) |
2530 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2531 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2532 | /* put @_ back onto stack */ |
a0d0e21e | 2533 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2534 | |
93965878 | 2535 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2536 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2537 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2538 | SvREFCNT_dec(GvAV(PL_defgv)); |
2539 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2540 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2541 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2542 | if (AvREAL(av)) { |
b1464ded DM |
2543 | reified = 1; |
2544 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2545 | av = newAV(); |
2546 | av_extend(av, items-1); | |
11ca45c0 | 2547 | AvREIFY_only(av); |
ad64d0ec | 2548 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2549 | } |
a0d0e21e | 2550 | } |
aed2304a | 2551 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2552 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2553 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2554 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2555 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2556 | } |
a45cdc79 DM |
2557 | mark = SP; |
2558 | SP += items; | |
6b35e009 | 2559 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2560 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2561 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2562 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2563 | LEAVE_SCOPE(oldsave); |
2564 | ||
2565 | /* Now do some callish stuff. */ | |
2566 | SAVETMPS; | |
5023d17a | 2567 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2568 | if (CvISXSUB(cv)) { |
b37c2d43 | 2569 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2570 | SV **newsp; |
2571 | I32 gimme; | |
b1464ded DM |
2572 | if (reified) { |
2573 | I32 index; | |
2574 | for (index=0; index<items; index++) | |
2575 | sv_2mortal(SP[-index]); | |
2576 | } | |
1fa4e549 | 2577 | |
b37c2d43 AL |
2578 | /* XS subs don't have a CxSUB, so pop it */ |
2579 | POPBLOCK(cx, PL_curpm); | |
2580 | /* Push a mark for the start of arglist */ | |
2581 | PUSHMARK(mark); | |
2582 | PUTBACK; | |
2583 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2584 | LEAVE; |
5eff7df7 | 2585 | return retop; |
a0d0e21e LW |
2586 | } |
2587 | else { | |
b37c2d43 | 2588 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2589 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2590 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2591 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2592 | cx->cx_type = CXt_SUB; |
b150fb22 | 2593 | } |
a0d0e21e | 2594 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2595 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2596 | |
a0d0e21e LW |
2597 | CvDEPTH(cv)++; |
2598 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2599 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2600 | else { |
2b9dff67 | 2601 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2602 | sub_crush_depth(cv); |
26019298 | 2603 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2604 | } |
fd617465 DM |
2605 | SAVECOMPPAD(); |
2606 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2607 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2608 | { |
502c6561 | 2609 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2610 | |
3280af22 | 2611 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2612 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2613 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2614 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2615 | |
2616 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2617 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2618 | if (AvARRAY(av) != ary) { |
2619 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2620 | AvARRAY(av) = ary; |
a0d0e21e LW |
2621 | } |
2622 | if (items >= AvMAX(av) + 1) { | |
2623 | AvMAX(av) = items - 1; | |
2624 | Renew(ary,items+1,SV*); | |
2625 | AvALLOC(av) = ary; | |
9c6bc640 | 2626 | AvARRAY(av) = ary; |
a0d0e21e LW |
2627 | } |
2628 | } | |
a45cdc79 | 2629 | ++mark; |
a0d0e21e | 2630 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2631 | AvFILLp(av) = items - 1; |
d8b46c1b | 2632 | assert(!AvREAL(av)); |
b1464ded DM |
2633 | if (reified) { |
2634 | /* transfer 'ownership' of refcnts to new @_ */ | |
2635 | AvREAL_on(av); | |
2636 | AvREIFY_off(av); | |
2637 | } | |
a0d0e21e LW |
2638 | while (items--) { |
2639 | if (*mark) | |
2640 | SvTEMP_off(*mark); | |
2641 | mark++; | |
2642 | } | |
2643 | } | |
491527d0 | 2644 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2645 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2646 | if (PERLDB_GOTO) { |
b96d8cd9 | 2647 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2648 | if (gotocv) { |
2649 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2650 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2651 | PL_stack_sp--; |
2652 | } | |
491527d0 | 2653 | } |
1ce6579f | 2654 | } |
a0d0e21e LW |
2655 | RETURNOP(CvSTART(cv)); |
2656 | } | |
2657 | } | |
1614b0e3 | 2658 | else { |
0510663f | 2659 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2660 | if (!(do_dump || *label)) |
cea2e8a9 | 2661 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2662 | } |
a0d0e21e | 2663 | } |
533c011a | 2664 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2665 | if (! do_dump) |
cea2e8a9 | 2666 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2667 | } |
2668 | else | |
2669 | label = cPVOP->op_pv; | |
2670 | ||
f410a211 NC |
2671 | PERL_ASYNC_CHECK(); |
2672 | ||
a0d0e21e | 2673 | if (label && *label) { |
cbbf8932 | 2674 | OP *gotoprobe = NULL; |
3b2447bc | 2675 | bool leaving_eval = FALSE; |
33d34e4c | 2676 | bool in_block = FALSE; |
cbbf8932 | 2677 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2678 | |
2679 | /* find label */ | |
2680 | ||
d4c19fe8 | 2681 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2682 | *enterops = 0; |
2683 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2684 | cx = &cxstack[ix]; | |
6b35e009 | 2685 | switch (CxTYPE(cx)) { |
a0d0e21e | 2686 | case CXt_EVAL: |
3b2447bc | 2687 | leaving_eval = TRUE; |
971ecbe6 | 2688 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2689 | gotoprobe = (last_eval_cx ? |
2690 | last_eval_cx->blk_eval.old_eval_root : | |
2691 | PL_eval_root); | |
2692 | last_eval_cx = cx; | |
9c5794fe RH |
2693 | break; |
2694 | } | |
2695 | /* else fall through */ | |
c6fdafd0 | 2696 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2697 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2698 | case CXt_LOOP_FOR: |
2699 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2700 | case CXt_GIVEN: |
2701 | case CXt_WHEN: | |
a0d0e21e LW |
2702 | gotoprobe = cx->blk_oldcop->op_sibling; |
2703 | break; | |
2704 | case CXt_SUBST: | |
2705 | continue; | |
2706 | case CXt_BLOCK: | |
33d34e4c | 2707 | if (ix) { |
a0d0e21e | 2708 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2709 | in_block = TRUE; |
2710 | } else | |
3280af22 | 2711 | gotoprobe = PL_main_root; |
a0d0e21e | 2712 | break; |
b3933176 | 2713 | case CXt_SUB: |
9850bf21 | 2714 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2715 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2716 | break; | |
2717 | } | |
2718 | /* FALL THROUGH */ | |
7766f137 | 2719 | case CXt_FORMAT: |
0a753a76 | 2720 | case CXt_NULL: |
a651a37d | 2721 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2722 | default: |
2723 | if (ix) | |
cea2e8a9 | 2724 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2725 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2726 | break; |
2727 | } | |
2b597662 GS |
2728 | if (gotoprobe) { |
2729 | retop = dofindlabel(gotoprobe, label, | |
2730 | enterops, enterops + GOTO_DEPTH); | |
2731 | if (retop) | |
2732 | break; | |
2733 | } | |
3280af22 | 2734 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2735 | } |
2736 | if (!retop) | |
cea2e8a9 | 2737 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2738 | |
3b2447bc RH |
2739 | /* if we're leaving an eval, check before we pop any frames |
2740 | that we're not going to punt, otherwise the error | |
2741 | won't be caught */ | |
2742 | ||
2743 | if (leaving_eval && *enterops && enterops[1]) { | |
2744 | I32 i; | |
2745 | for (i = 1; enterops[i]; i++) | |
2746 | if (enterops[i]->op_type == OP_ENTERITER) | |
2747 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2748 | } | |
2749 | ||
b500e03b GG |
2750 | if (*enterops && enterops[1]) { |
2751 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2752 | if (enterops[i]) | |
2753 | deprecate("\"goto\" to jump into a construct"); | |
2754 | } | |
2755 | ||
a0d0e21e LW |
2756 | /* pop unwanted frames */ |
2757 | ||
2758 | if (ix < cxstack_ix) { | |
2759 | I32 oldsave; | |
2760 | ||
2761 | if (ix < 0) | |
2762 | ix = 0; | |
2763 | dounwind(ix); | |
2764 | TOPBLOCK(cx); | |
3280af22 | 2765 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2766 | LEAVE_SCOPE(oldsave); |
2767 | } | |
2768 | ||
2769 | /* push wanted frames */ | |
2770 | ||
748a9306 | 2771 | if (*enterops && enterops[1]) { |
0bd48802 | 2772 | OP * const oldop = PL_op; |
33d34e4c AE |
2773 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2774 | for (; enterops[ix]; ix++) { | |
533c011a | 2775 | PL_op = enterops[ix]; |
84902520 TB |
2776 | /* Eventually we may want to stack the needed arguments |
2777 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2778 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2779 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 2780 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 2781 | } |
533c011a | 2782 | PL_op = oldop; |
a0d0e21e LW |
2783 | } |
2784 | } | |
2785 | ||
2786 | if (do_dump) { | |
a5f75d66 | 2787 | #ifdef VMS |
6b88bc9c | 2788 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2789 | #endif |
3280af22 NIS |
2790 | PL_restartop = retop; |
2791 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2792 | |
2793 | my_unexec(); | |
2794 | ||
3280af22 NIS |
2795 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2796 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2797 | } |
2798 | ||
2799 | RETURNOP(retop); | |
2800 | } | |
2801 | ||
2802 | PP(pp_exit) | |
2803 | { | |
97aff369 | 2804 | dVAR; |
39644a26 | 2805 | dSP; |
a0d0e21e LW |
2806 | I32 anum; |
2807 | ||
2808 | if (MAXARG < 1) | |
2809 | anum = 0; | |
ff0cee69 | 2810 | else { |
a0d0e21e | 2811 | anum = SvIVx(POPs); |
d98f61e7 GS |
2812 | #ifdef VMS |
2813 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2814 | anum = 0; |
96e176bf | 2815 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 PP |
2816 | #endif |
2817 | } | |
cc3604b1 | 2818 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2819 | #ifdef PERL_MAD |
2820 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2821 | if (anum || !(PL_minus_c && PL_madskills)) | |
2822 | my_exit(anum); | |
2823 | #else | |
a0d0e21e | 2824 | my_exit(anum); |
81d86705 | 2825 | #endif |
3280af22 | 2826 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2827 | RETURN; |
2828 | } | |
2829 | ||
a0d0e21e LW |
2830 | /* Eval. */ |
2831 | ||
0824fdcb | 2832 | STATIC void |
cea2e8a9 | 2833 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2834 | { |
504618e9 | 2835 | const char *s = SvPVX_const(sv); |
890ce7af | 2836 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2837 | I32 line = 1; |
a0d0e21e | 2838 | |
7918f24d NC |
2839 | PERL_ARGS_ASSERT_SAVE_LINES; |
2840 | ||
a0d0e21e | 2841 | while (s && s < send) { |
f54cb97a | 2842 | const char *t; |
b9f83d2f | 2843 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2844 | |
1d963ff3 | 2845 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2846 | if (t) |
2847 | t++; | |
2848 | else | |
2849 | t = send; | |
2850 | ||
2851 | sv_setpvn(tmpstr, s, t - s); | |
2852 | av_store(array, line++, tmpstr); | |
2853 | s = t; | |
2854 | } | |
2855 | } | |
2856 | ||
22f16304 RU |
2857 | /* |
2858 | =for apidoc docatch | |
2859 | ||
2860 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
2861 | ||
2862 | 0 is used as continue inside eval, | |
2863 | ||
2864 | 3 is used for a die caught by an inner eval - continue inner loop | |
2865 | ||
2866 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
2867 | establish a local jmpenv to handle exception traps. | |
2868 | ||
2869 | =cut | |
2870 | */ | |
0824fdcb | 2871 | STATIC OP * |
cea2e8a9 | 2872 | S_docatch(pTHX_ OP *o) |
1e422769 | 2873 | { |
97aff369 | 2874 | dVAR; |
6224f72b | 2875 | int ret; |
06b5626a | 2876 | OP * const oldop = PL_op; |
db36c5a1 | 2877 | dJMPENV; |
1e422769 | 2878 | |
1e422769 | 2879 | #ifdef DEBUGGING |
54310121 | 2880 | assert(CATCH_GET == TRUE); |
1e422769 | 2881 | #endif |
312caa8e | 2882 | PL_op = o; |
8bffa5f8 | 2883 | |
14dd3ad8 | 2884 | JMPENV_PUSH(ret); |
6224f72b | 2885 | switch (ret) { |
312caa8e | 2886 | case 0: |
abd70938 DM |
2887 | assert(cxstack_ix >= 0); |
2888 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2889 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2890 | redo_body: |
85aaa934 | 2891 | CALLRUNOPS(aTHX); |
312caa8e CS |
2892 | break; |
2893 | case 3: | |
8bffa5f8 | 2894 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
2895 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
2896 | PL_restartjmpenv = NULL; | |
312caa8e CS |
2897 | PL_op = PL_restartop; |
2898 | PL_restartop = 0; | |
2899 | goto redo_body; | |
2900 | } | |
2901 | /* FALL THROUGH */ | |
2902 | default: | |
14dd3ad8 | 2903 | JMPENV_POP; |
533c011a | 2904 | PL_op = oldop; |
6224f72b | 2905 | JMPENV_JUMP(ret); |
1e422769 | 2906 | /* NOTREACHED */ |
1e422769 | 2907 | } |
14dd3ad8 | 2908 | JMPENV_POP; |
533c011a | 2909 | PL_op = oldop; |
5f66b61c | 2910 | return NULL; |
1e422769 PP |
2911 | } |
2912 | ||
ee23ad3b NC |
2913 | /* James Bond: Do you expect me to talk? |
2914 | Auric Goldfinger: No, Mr. Bond. I expect you to die. | |
2915 | ||
2916 | This code is an ugly hack, doesn't work with lexicals in subroutines that are | |
2917 | called more than once, and is only used by regcomp.c, for (?{}) blocks. | |
2918 | ||
2919 | Currently it is not used outside the core code. Best if it stays that way. | |
2920 | */ | |
c277df42 | 2921 | OP * |
bfed75c6 | 2922 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2923 | /* sv Text to convert to OP tree. */ |
2924 | /* startop op_free() this to undo. */ | |
2925 | /* code Short string id of the caller. */ | |
2926 | { | |
27da23d5 | 2927 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2928 | PERL_CONTEXT *cx; |
2929 | SV **newsp; | |
b094c71d | 2930 | I32 gimme = G_VOID; |
c277df42 IZ |
2931 | I32 optype; |
2932 | OP dummy; | |
83ee9e09 GS |
2933 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2934 | char *tmpbuf = tbuf; | |
c277df42 | 2935 | char *safestr; |
a3985cdc | 2936 | int runtime; |
601f1833 | 2937 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2938 | STRLEN len; |
634d6919 | 2939 | bool need_catch; |
c277df42 | 2940 | |
7918f24d NC |
2941 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
2942 | ||
d343c3ef | 2943 | ENTER_with_name("eval"); |
5486870f | 2944 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2945 | SAVETMPS; |
2946 | /* switch to eval mode */ | |
2947 | ||
923e4eb5 | 2948 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2949 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2950 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2951 | } |
83ee9e09 | 2952 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2953 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2954 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2955 | code, (unsigned long)++PL_evalseq, | |
2956 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2957 | tmpbuf = SvPVX(sv); | |
fc009855 | 2958 | len = SvCUR(sv); |
83ee9e09 GS |
2959 | } |
2960 | else | |
d9fad198 JH |
2961 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2962 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2963 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2964 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2965 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2966 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2967 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2968 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2969 | (i.e. before run-time proper). To work around the coredump that | |
2970 | ensues, we always turn GvMULTI_on for any globals that were | |
2971 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2972 | safestr = savepvn(tmpbuf, len); |
2973 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2974 | SAVEHINTS(); |
d1ca3daa | 2975 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2976 | PL_opsave = op; |
d1ca3daa | 2977 | #else |
7766f137 | 2978 | SAVEVPTR(PL_op); |
d1ca3daa | 2979 | #endif |
c277df42 | 2980 | |
a3985cdc | 2981 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2982 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2983 | if (runtime) |
d819b83a | 2984 | runcv = find_runcv(NULL); |
a3985cdc | 2985 | |
533c011a | 2986 | PL_op = &dummy; |
13b51b79 | 2987 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2988 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2989 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 2990 | PUSHEVAL(cx, 0); |
634d6919 GG |
2991 | need_catch = CATCH_GET; |
2992 | CATCH_SET(TRUE); | |
a3985cdc DM |
2993 | |
2994 | if (runtime) | |
410be5db | 2995 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 2996 | else |
410be5db | 2997 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
634d6919 | 2998 | CATCH_SET(need_catch); |
13b51b79 | 2999 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 3000 | POPEVAL(cx); |
c277df42 IZ |
3001 | |
3002 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 3003 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 3004 | lex_end(); |
f3548bdc | 3005 | /* XXX DAPM do this properly one year */ |
502c6561 | 3006 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 3007 | LEAVE_with_name("eval"); |
923e4eb5 | 3008 | if (IN_PERL_COMPILETIME) |
623e6609 | 3009 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 3010 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3011 | op = PL_opsave; |
d1ca3daa | 3012 | #endif |
9d4ba2ae AL |
3013 | PERL_UNUSED_VAR(newsp); |
3014 | PERL_UNUSED_VAR(optype); | |
3015 | ||
410be5db | 3016 | return PL_eval_start; |
c277df42 IZ |
3017 | } |
3018 | ||
a3985cdc DM |
3019 | |
3020 | /* | |
3021 | =for apidoc find_runcv | |
3022 | ||
3023 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3024 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3025 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3026 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3027 | than in the scope of the debugger itself). |
a3985cdc DM |
3028 | |
3029 | =cut | |
3030 | */ | |
3031 | ||
3032 | CV* | |
d819b83a | 3033 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3034 | { |
97aff369 | 3035 | dVAR; |
a3985cdc | 3036 | PERL_SI *si; |
a3985cdc | 3037 | |
d819b83a DM |
3038 | if (db_seqp) |
3039 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3040 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3041 | I32 ix; |
a3985cdc | 3042 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3043 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3044 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3045 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3046 | /* skip DB:: code */ |
3047 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3048 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3049 | continue; | |
3050 | } | |
3051 | return cv; | |
3052 | } | |
a3985cdc DM |
3053 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3054 | return PL_compcv; | |
3055 | } | |
3056 | } | |
3057 | return PL_main_cv; | |
3058 | } | |
3059 | ||
3060 | ||
27e90453 DM |
3061 | /* Run yyparse() in a setjmp wrapper. Returns: |
3062 | * 0: yyparse() successful | |
3063 | * 1: yyparse() failed | |
3064 | * 3: yyparse() died | |
3065 | */ | |
3066 | STATIC int | |
28ac2b49 | 3067 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3068 | { |
3069 | int ret; | |
3070 | dJMPENV; | |
3071 | ||
3072 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3073 | JMPENV_PUSH(ret); | |
3074 | switch (ret) { | |
3075 | case 0: | |
28ac2b49 | 3076 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3077 | break; |
3078 | case 3: | |
3079 | break; | |
3080 | default: | |
3081 | JMPENV_POP; | |
3082 | JMPENV_JUMP(ret); | |
3083 | /* NOTREACHED */ | |
3084 | } | |
3085 | JMPENV_POP; | |
3086 | return ret; | |
3087 | } | |
3088 | ||
3089 | ||
a3985cdc DM |
3090 | /* Compile a require/do, an eval '', or a /(?{...})/. |
3091 | * In the last case, startop is non-null, and contains the address of | |
3092 | * a pointer that should be set to the just-compiled code. | |
3093 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3094 | * Returns a bool indicating whether the compile was successful; if so, |
3095 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3096 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3097 | */ |
3098 | ||
410be5db | 3099 | STATIC bool |
a3985cdc | 3100 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3101 | { |
27da23d5 | 3102 | dVAR; dSP; |
46c461b5 | 3103 | OP * const saveop = PL_op; |
27e90453 DM |
3104 | bool in_require = (saveop && saveop->op_type == OP_REQUIRE); |
3105 | int yystatus; | |
a0d0e21e | 3106 | |
27e90453 | 3107 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3108 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3109 | : EVAL_INEVAL); | |
a0d0e21e | 3110 | |
1ce6579f PP |
3111 | PUSHMARK(SP); |
3112 | ||
3280af22 | 3113 | SAVESPTR(PL_compcv); |
ea726b52 | 3114 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3115 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3116 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3117 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3118 | ||
a3985cdc | 3119 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3120 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3121 | |
dd2155a4 | 3122 | /* set up a scratch pad */ |
a0d0e21e | 3123 | |
dd2155a4 | 3124 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3125 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3126 | |
07055b4c | 3127 | |
81d86705 NC |
3128 | if (!PL_madskills) |
3129 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3130 | |
a0d0e21e LW |
3131 | /* make sure we compile in the right package */ |
3132 | ||
ed094faf | 3133 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3134 | SAVESPTR(PL_curstash); |
ed094faf | 3135 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3136 | } |
3c10abe3 | 3137 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3138 | SAVESPTR(PL_beginav); |
3139 | PL_beginav = newAV(); | |
3140 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3141 | SAVESPTR(PL_unitcheckav); |
3142 | PL_unitcheckav = newAV(); | |
3143 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3144 | |
81d86705 | 3145 | #ifdef PERL_MAD |
9da243ce | 3146 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3147 | PL_madskills = 0; |
3148 | #endif | |
3149 | ||
a0d0e21e LW |
3150 | /* try to compile it */ |
3151 | ||
5f66b61c | 3152 | PL_eval_root = NULL; |
3280af22 | 3153 | PL_curcop = &PL_compiling; |
fc15ae8f | 3154 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3155 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3156 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3157 | else |
3158 | CLEAR_ERRSV(); | |
27e90453 | 3159 | |
52db365a BM |
3160 | CALL_BLOCK_HOOKS(eval, saveop); |
3161 | ||
27e90453 DM |
3162 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3163 | * so honour CATCH_GET and trap it here if necessary */ | |
3164 | ||
28ac2b49 | 3165 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3166 | |
3167 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3168 | SV **newsp; /* Used by POPBLOCK. */ |
b6494f15 | 3169 | PERL_CONTEXT *cx = NULL; |
27e90453 | 3170 | I32 optype; /* Used by POPEVAL. */ |
b6494f15 | 3171 | SV *namesv = NULL; |
9d4ba2ae | 3172 | const char *msg; |
bfed75c6 | 3173 | |
27e90453 DM |
3174 | PERL_UNUSED_VAR(newsp); |
3175 | PERL_UNUSED_VAR(optype); | |
3176 | ||
c86ffc32 DM |
3177 | /* note that if yystatus == 3, then the EVAL CX block has already |
3178 | * been popped, and various vars restored */ | |
533c011a | 3179 | PL_op = saveop; |
27e90453 | 3180 | if (yystatus != 3) { |
c86ffc32 DM |
3181 | if (PL_eval_root) { |
3182 | op_free(PL_eval_root); | |
3183 | PL_eval_root = NULL; | |
3184 | } | |
27e90453 DM |
3185 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
3186 | if (!startop) { | |
3187 | POPBLOCK(cx,PL_curpm); | |
3188 | POPEVAL(cx); | |
b6494f15 | 3189 | namesv = cx->blk_eval.old_namesv; |
27e90453 | 3190 | } |
c277df42 | 3191 | } |
a0d0e21e | 3192 | lex_end(); |
27e90453 DM |
3193 | if (yystatus != 3) |
3194 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ | |
9d4ba2ae AL |
3195 | |
3196 | msg = SvPVx_nolen_const(ERRSV); | |
27e90453 | 3197 | if (in_require) { |
b6494f15 VP |
3198 | if (!cx) { |
3199 | /* If cx is still NULL, it means that we didn't go in the | |
3200 | * POPEVAL branch. */ | |
3201 | cx = &cxstack[cxstack_ix]; | |
3202 | assert(CxTYPE(cx) == CXt_EVAL); | |
3203 | namesv = cx->blk_eval.old_namesv; | |
3204 | } | |
3205 | (void)hv_store(GvHVn(PL_incgv), | |
3206 | SvPVX_const(namesv), SvCUR(namesv), | |
3207 | &PL_sv_undef, 0); | |
58d3fd3b SH |
3208 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3209 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3210 | } |
3211 | else if (startop) { | |
27e90453 DM |
3212 | if (yystatus != 3) { |
3213 | POPBLOCK(cx,PL_curpm); | |
3214 | POPEVAL(cx); | |
3215 | } | |
5a844595 GS |
3216 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3217 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3218 | } |
9d7f88dd | 3219 | else { |
9d7f88dd | 3220 | if (!*msg) { |
6502358f | 3221 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3222 | } |
3223 | } | |
410be5db DM |
3224 | PUSHs(&PL_sv_undef); |
3225 | PUTBACK; | |
3226 | return FALSE; | |
a0d0e21e | 3227 | } |
57843af0 | 3228 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3229 | if (startop) { |
3280af22 | 3230 | *startop = PL_eval_root; |
c277df42 | 3231 | } else |
3280af22 | 3232 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3233 | |
3234 | /* Set the context for this new optree. | |
021f53de GG |
3235 | * Propagate the context from the eval(). */ |
3236 | if ((gimme & G_WANT) == G_VOID) | |
3280af22 | 3237 | scalarvoid(PL_eval_root); |
7df0357e | 3238 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3239 | list(PL_eval_root); |
a0d0e21e | 3240 | else |
3280af22 | 3241 | scalar(PL_eval_root); |
a0d0e21e LW |
3242 | |
3243 | DEBUG_x(dump_eval()); | |
3244 | ||
55497cff | 3245 | /* Register with debugger: */ |
6482a30d | 3246 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3247 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff PP |
3248 | if (cv) { |
3249 | dSP; | |
924508f0 | 3250 | PUSHMARK(SP); |
ad64d0ec | 3251 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3252 | PUTBACK; |
ad64d0ec | 3253 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff PP |
3254 | } |
3255 | } | |
3256 | ||
3c10abe3 AG |
3257 | if (PL_unitcheckav) |
3258 | call_list(PL_scopestack_ix, PL_unitcheckav); | |
3259 | ||
a0d0e21e LW |
3260 | /* compiled okay, so do it */ |
3261 | ||
3280af22 NIS |
3262 | CvDEPTH(PL_compcv) = 1; |
3263 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3264 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3265 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3266 | |
410be5db DM |
3267 | PUTBACK; |
3268 | return TRUE; | |
a0d0e21e LW |
3269 | } |
3270 | ||
a6c40364 | 3271 | STATIC PerlIO * |
0786552a | 3272 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3273 | { |
3274 | Stat_t st; | |
c445ea15 | 3275 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3276 | |
7918f24d NC |
3277 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3278 | ||
6b845e56 | 3279 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3280 | return NULL; |
ce8abf5f SP |
3281 | } |
3282 | ||
0786552a | 3283 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3284 | } |
3285 | ||
75c20bac | 3286 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3287 | STATIC PerlIO * |
0786552a | 3288 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3289 | { |
b295d113 TH |
3290 | PerlIO *fp; |
3291 | ||
7918f24d NC |
3292 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3293 | ||
ce9440c8 | 3294 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3295 | SV *const pmcsv = newSV(namelen + 2); |
3296 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3297 | Stat_t pmcstat; |
50b8ed39 NC |
3298 | |
3299 | memcpy(pmc, name, namelen); | |
3300 | pmc[namelen] = 'c'; | |
3301 | pmc[namelen + 1] = '\0'; | |
3302 | ||
a6c40364 | 3303 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3304 | fp = check_type_and_open(name); |
a6c40364 GS |
3305 | } |
3306 | else { | |
0786552a | 3307 | fp = check_type_and_open(pmc); |
b295d113 | 3308 | } |
a6c40364 GS |
3309 | SvREFCNT_dec(pmcsv); |
3310 | } | |
3311 | else { | |
0786552a | 3312 | fp = check_type_and_open(name); |
b295d113 | 3313 | } |
b295d113 | 3314 | return fp; |
75c20bac | 3315 | } |
7925835c | 3316 | #else |
75c20bac | 3317 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3318 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3319 | |
a0d0e21e LW |
3320 | PP(pp_require) |
3321 | { | |
27da23d5 | 3322 | dVAR; dSP; |
c09156bb | 3323 | register PERL_CONTEXT *cx; |
a0d0e21e | 3324 | SV *sv; |
5c144d81 | 3325 | const char *name; |
6132ea6c | 3326 | STRLEN len; |
4492be7a JM |
3327 | char * unixname; |
3328 | STRLEN unixlen; | |
62f5ad7a | 3329 | #ifdef VMS |
4492be7a | 3330 | int vms_unixname = 0; |
62f5ad7a | 3331 | #endif |
c445ea15 AL |
3332 | const char *tryname = NULL; |
3333 | SV *namesv = NULL; | |
f54cb97a | 3334 | const I32 gimme = GIMME_V; |
bbed91b5 | 3335 | int filter_has_file = 0; |
c445ea15 | 3336 | PerlIO *tryrsfp = NULL; |
34113e50 | 3337 | SV *filter_cache = NULL; |
c445ea15 AL |
3338 | SV *filter_state = NULL; |
3339 | SV *filter_sub = NULL; | |
3340 | SV *hook_sv = NULL; | |
6ec9efec JH |
3341 | SV *encoding; |
3342 | OP *op; | |
a0d0e21e LW |
3343 | |
3344 | sv = POPs; | |
d7aa5382 | 3345 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d7aa5382 JP |
3346 | sv = new_version(sv); |
3347 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3348 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3349 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3350 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3351 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3352 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3353 | } |
3354 | else { | |
d1029faa JP |
3355 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3356 | I32 first = 0; | |
3357 | AV *lav; | |
3358 | SV * const req = SvRV(sv); | |
85fbaab2 | 3359 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3360 | |
3361 | /* get the left hand term */ | |
502c6561 | 3362 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3363 | |
3364 | first = SvIV(*av_fetch(lav,0,0)); | |
3365 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3366 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3367 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3368 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3369 | ) { | |
3370 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3371 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3372 | SVfARG(vnormal(PL_patchlevel))); | |
3373 | } | |
3374 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3375 | SV *hintsv; |
d1029faa JP |
3376 | I32 second = 0; |
3377 | ||
3378 | if (av_len(lav)>=1) | |
3379 | second = SvIV(*av_fetch(lav,1,0)); | |
3380 | ||
3381 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3382 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3383 | (int)first, (int)second); | |
d1029faa JP |
3384 | upg_version(hintsv, TRUE); |
3385 | ||
3386 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3387 | "--this is only %"SVf", stopped", | |
3388 | SVfARG(vnormal(req)), | |
af61dbfd | 3389 | SVfARG(vnormal(sv_2mortal(hintsv))), |
d1029faa JP |
3390 | SVfARG(vnormal(PL_patchlevel))); |
3391 | } | |
3392 | } | |
468aa647 | 3393 | } |
d7aa5382 | 3394 | |
faee19b5 | 3395 | /* We do this only with "use", not "require" or "no". */ |
da8fb5d8 DG |
3396 | if (PL_compcv && !(cUNOP->op_first->op_private & OPpCONST_NOVER)) { |
3397 | /* If we request a version >= 5.9.5, load feature.pm with the | |
3398 | * feature bundle that corresponds to the required version. */ | |
3399 | if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { | |
3400 | SV *const importsv = vnormal(sv); | |