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 | 100 | if (SvROK(rx) && SvAMAGIC(rx)) { \ |
31d632c3 | 101 | SV *sv = AMG_CALLunary(rx, regexp_amg); \ |
d4b87e75 BM |
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 | 113 | if (PL_op->op_flags & OPf_STACKED) { |
486ec47a | 114 | /* multiple args; concatenate them */ |
131b3ad0 DM |
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 | } |
a9984b10 | 130 | sv_catsv_nomg(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; |
73134a2e | 188 | U32 pm_flags = pm->op_pmflags & RXf_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 | 196 | } else if (PL_curcop->cop_hints_hash) { |
20439bc7 | 197 | SV *ptr = cop_hints_fetch_pvs(PL_curcop, "regcomp", 0); |
1e2e3d02 YO |
198 | if (ptr && SvIOK(ptr) && SvIV(ptr)) |
199 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 200 | } |
664e119d | 201 | |
533c011a | 202 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 203 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 204 | |
b9ad30b4 NC |
205 | if (DO_UTF8(tmpstr)) { |
206 | assert (SvUTF8(tmpstr)); | |
207 | } else if (SvUTF8(tmpstr)) { | |
208 | /* Not doing UTF-8, despite what the SV says. Is this only if | |
209 | we're trapped in use 'bytes'? */ | |
210 | /* Make a copy of the octet sequence, but without the flag on, | |
211 | as the compiler now honours the SvUTF8 flag on tmpstr. */ | |
212 | STRLEN len; | |
213 | const char *const p = SvPV(tmpstr, len); | |
214 | tmpstr = newSVpvn_flags(p, len, SVs_TEMP); | |
215 | } | |
f3ec07c7 DM |
216 | else if (SvAMAGIC(tmpstr)) { |
217 | /* make a copy to avoid extra stringifies */ | |
0479a84a | 218 | tmpstr = newSVpvn_flags(t, len, SVs_TEMP | SvUTF8(tmpstr)); |
f3ec07c7 | 219 | } |
c737faaf | 220 | |
a9984b10 FC |
221 | /* If it is gmagical, create a mortal copy, but without calling |
222 | get-magic, as we have already done that. */ | |
223 | if(SvGMAGICAL(tmpstr)) { | |
224 | SV *mortalcopy = sv_newmortal(); | |
225 | sv_setsv_flags(mortalcopy, tmpstr, 0); | |
226 | tmpstr = mortalcopy; | |
227 | } | |
228 | ||
5a8697a7 | 229 | if (eng) |
3ab4a224 | 230 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); |
5a8697a7 | 231 | else |
3ab4a224 | 232 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); |
c737faaf | 233 | |
f86aaa29 | 234 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 235 | inside tie/overload accessors. */ |
c277df42 | 236 | } |
4633a7c4 | 237 | } |
c737faaf YO |
238 | |
239 | re = PM_GETRE(pm); | |
a0d0e21e | 240 | |
72311751 | 241 | #ifndef INCOMPLETE_TAINTS |
3280af22 | 242 | if (PL_tainting) { |
9274aefd DM |
243 | if (PL_tainted) { |
244 | SvTAINTED_on((SV*)re); | |
07bc277f | 245 | RX_EXTFLAGS(re) |= RXf_TAINTED; |
9274aefd | 246 | } |
72311751 GS |
247 | } |
248 | #endif | |
249 | ||
220fc49f | 250 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
3280af22 | 251 | pm = PL_curpm; |
a0d0e21e | 252 | |
c737faaf YO |
253 | |
254 | #if !defined(USE_ITHREADS) | |
255 | /* can't change the optree at runtime either */ | |
256 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 257 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 258 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 259 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 260 | } |
c737faaf | 261 | #endif |
a0d0e21e LW |
262 | RETURN; |
263 | } | |
264 | ||
265 | PP(pp_substcont) | |
266 | { | |
97aff369 | 267 | dVAR; |
39644a26 | 268 | dSP; |
c09156bb | 269 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
270 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
271 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
272 | register char *s = cx->sb_s; |
273 | register char *m = cx->sb_m; | |
274 | char *orig = cx->sb_orig; | |
901017d6 | 275 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 276 | SV *nsv = NULL; |
988e6e7e | 277 | REGEXP *old = PM_GETRE(pm); |
f410a211 NC |
278 | |
279 | PERL_ASYNC_CHECK(); | |
280 | ||
988e6e7e | 281 | if(old != rx) { |
bfed75c6 | 282 | if(old) |
988e6e7e | 283 | ReREFCNT_dec(old); |
d6106309 | 284 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
285 | } |
286 | ||
d9f97599 | 287 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 288 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 289 | |
a0d0e21e | 290 | if (cx->sb_iters++) { |
a3b680e6 | 291 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 292 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 293 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 294 | |
447ee134 DM |
295 | SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */ |
296 | ||
ef07e810 | 297 | /* See "how taint works" above pp_subst() */ |
20be6587 DM |
298 | if (SvTAINTED(TOPs)) |
299 | cx->sb_rxtainted |= SUBST_TAINT_REPL; | |
447ee134 | 300 | sv_catsv_nomg(dstr, POPs); |
2c296965 YO |
301 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
302 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
303 | |
304 | /* Are we done */ | |
2c296965 YO |
305 | if (CxONCE(cx) || s < orig || |
306 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
307 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
308 | ((cx->sb_rflags & REXEC_COPY_STR) | |
309 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) | |
310 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 311 | { |
823a54a3 | 312 | SV * const targ = cx->sb_targ; |
748a9306 | 313 | |
078c425b JH |
314 | assert(cx->sb_strend >= s); |
315 | if(cx->sb_strend > s) { | |
316 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
317 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
318 | else | |
319 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
320 | } | |
20be6587 DM |
321 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ |
322 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
9212bbba | 323 | |
f8c7b90f | 324 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
325 | if (SvIsCOW(targ)) { |
326 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
327 | } else | |
328 | #endif | |
329 | { | |
8bd4d4c5 | 330 | SvPV_free(targ); |
ed252734 | 331 | } |
f880fe2f | 332 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
333 | SvCUR_set(targ, SvCUR(dstr)); |
334 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
335 | if (DO_UTF8(dstr)) |
336 | SvUTF8_on(targ); | |
6136c704 | 337 | SvPV_set(dstr, NULL); |
48c036b1 | 338 | |
4f4d7508 DC |
339 | if (pm->op_pmflags & PMf_NONDESTRUCT) |
340 | PUSHs(targ); | |
341 | else | |
342 | mPUSHi(saviters - 1); | |
48c036b1 | 343 | |
ffc61ed2 | 344 | (void)SvPOK_only_UTF8(targ); |
5cd24f17 | 345 | |
20be6587 | 346 | /* update the taint state of various various variables in |
ef07e810 DM |
347 | * preparation for final exit. |
348 | * See "how taint works" above pp_subst() */ | |
20be6587 DM |
349 | if (PL_tainting) { |
350 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || | |
351 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
352 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
353 | ) | |
354 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
355 | ||
356 | if (!(cx->sb_rxtainted & SUBST_TAINT_BOOLRET) | |
357 | && (cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_PAT)) | |
358 | ) | |
359 | SvTAINTED_on(TOPs); /* taint return value */ | |
360 | /* needed for mg_set below */ | |
361 | PL_tainted = cBOOL(cx->sb_rxtainted & | |
362 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL)); | |
363 | SvTAINT(TARG); | |
364 | } | |
365 | /* PL_tainted must be correctly set for this mg_set */ | |
366 | SvSETMAGIC(TARG); | |
367 | TAINT_NOT; | |
4633a7c4 | 368 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
369 | POPSUBST(cx); |
370 | RETURNOP(pm->op_next); | |
20be6587 | 371 | /* NOTREACHED */ |
a0d0e21e | 372 | } |
8e5e9ebe | 373 | cx->sb_iters = saviters; |
a0d0e21e | 374 | } |
07bc277f | 375 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
376 | m = s; |
377 | s = orig; | |
07bc277f | 378 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
379 | s = orig + (m - s); |
380 | cx->sb_strend = s + (cx->sb_strend - m); | |
381 | } | |
07bc277f | 382 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 383 | if (m > s) { |
bfed75c6 | 384 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
385 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
386 | else | |
387 | sv_catpvn(dstr, s, m-s); | |
388 | } | |
07bc277f | 389 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 390 | { /* Update the pos() information. */ |
44f8325f | 391 | SV * const sv = cx->sb_targ; |
084916e3 | 392 | MAGIC *mg; |
7a7f3e45 | 393 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 394 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 395 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 396 | if (SvIsCOW(sv)) |
d83f0a82 NC |
397 | sv_force_normal_flags(sv, 0); |
398 | #endif | |
399 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
400 | NULL, 0); | |
084916e3 | 401 | } |
ce474962 | 402 | mg->mg_len = m - orig; |
084916e3 | 403 | } |
988e6e7e | 404 | if (old != rx) |
d6106309 | 405 | (void)ReREFCNT_inc(rx); |
20be6587 | 406 | /* update the taint state of various various variables in preparation |
ef07e810 DM |
407 | * for calling the code block. |
408 | * See "how taint works" above pp_subst() */ | |
20be6587 DM |
409 | if (PL_tainting) { |
410 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ | |
411 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
412 | ||
413 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || | |
414 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
415 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
416 | ) | |
417 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
418 | ||
419 | if (cx->sb_iters > 1 && (cx->sb_rxtainted & | |
420 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL))) | |
421 | SvTAINTED_on(cx->sb_targ); | |
422 | TAINT_NOT; | |
423 | } | |
d9f97599 | 424 | rxres_save(&cx->sb_rxres, rx); |
af9838cc | 425 | PL_curpm = pm; |
29f2e912 | 426 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
427 | } |
428 | ||
c90c0ff4 | 429 | void |
864dbfa3 | 430 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 PP |
431 | { |
432 | UV *p = (UV*)*rsp; | |
433 | U32 i; | |
7918f24d NC |
434 | |
435 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 436 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 437 | |
07bc277f | 438 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 439 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 440 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 441 | #else |
07bc277f | 442 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 443 | #endif |
c90c0ff4 | 444 | if (!p) |
a02a5408 | 445 | Newx(p, i, UV); |
c90c0ff4 PP |
446 | else |
447 | Renew(p, i, UV); | |
448 | *rsp = (void*)p; | |
449 | } | |
450 | ||
07bc277f | 451 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 452 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 453 | |
f8c7b90f | 454 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
455 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
456 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
457 | #endif |
458 | ||
07bc277f | 459 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 460 | |
07bc277f NC |
461 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
462 | *p++ = (UV)RX_SUBLEN(rx); | |
463 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
464 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
465 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 PP |
466 | } |
467 | } | |
468 | ||
9c105995 NC |
469 | static void |
470 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 PP |
471 | { |
472 | UV *p = (UV*)*rsp; | |
473 | U32 i; | |
7918f24d NC |
474 | |
475 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 476 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 477 | |
ed252734 | 478 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 479 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 PP |
480 | *p++ = 0; |
481 | ||
f8c7b90f | 482 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
483 | if (RX_SAVED_COPY(rx)) |
484 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
485 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
486 | *p++ = 0; |
487 | #endif | |
488 | ||
07bc277f | 489 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 490 | |
07bc277f NC |
491 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
492 | RX_SUBLEN(rx) = (I32)(*p++); | |
493 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
494 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
495 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 PP |
496 | } |
497 | } | |
498 | ||
9c105995 NC |
499 | static void |
500 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 501 | { |
44f8325f | 502 | UV * const p = (UV*)*rsp; |
7918f24d NC |
503 | |
504 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 505 | PERL_UNUSED_CONTEXT; |
c90c0ff4 PP |
506 | |
507 | if (p) { | |
94010e71 NC |
508 | #ifdef PERL_POISON |
509 | void *tmp = INT2PTR(char*,*p); | |
510 | Safefree(tmp); | |
511 | if (*p) | |
7e337ee0 | 512 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 513 | #else |
56431972 | 514 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 515 | #endif |
f8c7b90f | 516 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
517 | if (p[1]) { |
518 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
519 | } | |
520 | #endif | |
c90c0ff4 | 521 | Safefree(p); |
4608196e | 522 | *rsp = NULL; |
c90c0ff4 PP |
523 | } |
524 | } | |
525 | ||
a0d0e21e LW |
526 | PP(pp_formline) |
527 | { | |
97aff369 | 528 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 529 | register SV * const tmpForm = *++MARK; |
dea28490 | 530 | register U32 *fpc; |
a0d0e21e | 531 | register char *t; |
245d4a47 | 532 | const char *f; |
a0d0e21e | 533 | register I32 arg; |
c445ea15 AL |
534 | register SV *sv = NULL; |
535 | const char *item = NULL; | |
9c5ffd7c JH |
536 | I32 itemsize = 0; |
537 | I32 fieldsize = 0; | |
a0d0e21e | 538 | I32 lines = 0; |
c445ea15 AL |
539 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
540 | const char *chophere = NULL; | |
541 | char *linemark = NULL; | |
65202027 | 542 | NV value; |
9c5ffd7c | 543 | bool gotsome = FALSE; |
a0d0e21e | 544 | STRLEN len; |
7e6078c6 | 545 | const STRLEN fudge = SvPOKp(tmpForm) |
24c89738 | 546 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
547 | bool item_is_utf8 = FALSE; |
548 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 549 | SV * nsv = NULL; |
bfed75c6 | 550 | const char *fmt; |
a0d0e21e | 551 | |
76e3520e | 552 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
553 | if (SvREADONLY(tmpForm)) { |
554 | SvREADONLY_off(tmpForm); | |
75f63940 | 555 | doparseform(tmpForm); |
445b3f51 GS |
556 | SvREADONLY_on(tmpForm); |
557 | } | |
558 | else | |
75f63940 | 559 | doparseform(tmpForm); |
a0d0e21e | 560 | } |
3280af22 | 561 | SvPV_force(PL_formtarget, len); |
125b9982 NT |
562 | if (SvTAINTED(tmpForm)) |
563 | SvTAINTED_on(PL_formtarget); | |
1bd51a4c IH |
564 | if (DO_UTF8(PL_formtarget)) |
565 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 566 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 567 | t += len; |
245d4a47 | 568 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 569 | /* need to jump to the next word */ |
245d4a47 | 570 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
571 | |
572 | for (;;) { | |
573 | DEBUG_f( { | |
bfed75c6 | 574 | const char *name = "???"; |
a0d0e21e LW |
575 | arg = -1; |
576 | switch (*fpc) { | |
577 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
578 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
579 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
580 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
581 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
582 | ||
583 | case FF_CHECKNL: name = "CHECKNL"; break; | |
584 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
585 | case FF_SPACE: name = "SPACE"; break; | |
586 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
587 | case FF_ITEM: name = "ITEM"; break; | |
588 | case FF_CHOP: name = "CHOP"; break; | |
589 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
590 | case FF_NEWLINE: name = "NEWLINE"; break; | |
591 | case FF_MORE: name = "MORE"; break; | |
592 | case FF_LINEMARK: name = "LINEMARK"; break; | |
593 | case FF_END: name = "END"; break; | |
bfed75c6 | 594 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 595 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
596 | } |
597 | if (arg >= 0) | |
bf49b057 | 598 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 599 | else |
bf49b057 | 600 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 601 | } ); |
a0d0e21e LW |
602 | switch (*fpc++) { |
603 | case FF_LINEMARK: | |
604 | linemark = t; | |
a0d0e21e LW |
605 | lines++; |
606 | gotsome = FALSE; | |
607 | break; | |
608 | ||
609 | case FF_LITERAL: | |
610 | arg = *fpc++; | |
1bd51a4c | 611 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 612 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
613 | *t = '\0'; |
614 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
615 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 616 | f += arg; |
1bd51a4c IH |
617 | break; |
618 | } | |
619 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 620 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 621 | *t = '\0'; |
7bf79863 | 622 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
623 | t = SvEND(PL_formtarget); |
624 | targ_is_utf8 = TRUE; | |
625 | } | |
a0d0e21e LW |
626 | while (arg--) |
627 | *t++ = *f++; | |
628 | break; | |
629 | ||
630 | case FF_SKIP: | |
631 | f += *fpc++; | |
632 | break; | |
633 | ||
634 | case FF_FETCH: | |
635 | arg = *fpc++; | |
636 | f += arg; | |
637 | fieldsize = arg; | |
638 | ||
639 | if (MARK < SP) | |
640 | sv = *++MARK; | |
641 | else { | |
3280af22 | 642 | sv = &PL_sv_no; |
a2a5de95 | 643 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e | 644 | } |
125b9982 NT |
645 | if (SvTAINTED(sv)) |
646 | SvTAINTED_on(PL_formtarget); | |
a0d0e21e LW |
647 | break; |
648 | ||
649 | case FF_CHECKNL: | |
5a34cab7 NC |
650 | { |
651 | const char *send; | |
652 | const char *s = item = SvPV_const(sv, len); | |
653 | itemsize = len; | |
654 | if (DO_UTF8(sv)) { | |
655 | itemsize = sv_len_utf8(sv); | |
656 | if (itemsize != (I32)len) { | |
657 | I32 itembytes; | |
658 | if (itemsize > fieldsize) { | |
659 | itemsize = fieldsize; | |
660 | itembytes = itemsize; | |
661 | sv_pos_u2b(sv, &itembytes, 0); | |
662 | } | |
663 | else | |
664 | itembytes = len; | |
665 | send = chophere = s + itembytes; | |
666 | while (s < send) { | |
667 | if (*s & ~31) | |
668 | gotsome = TRUE; | |
669 | else if (*s == '\n') | |
670 | break; | |
671 | s++; | |
672 | } | |
673 | item_is_utf8 = TRUE; | |
674 | itemsize = s - item; | |
675 | sv_pos_b2u(sv, &itemsize); | |
676 | break; | |
a0ed51b3 | 677 | } |
a0ed51b3 | 678 | } |
5a34cab7 NC |
679 | item_is_utf8 = FALSE; |
680 | if (itemsize > fieldsize) | |
681 | itemsize = fieldsize; | |
682 | send = chophere = s + itemsize; | |
683 | while (s < send) { | |
684 | if (*s & ~31) | |
685 | gotsome = TRUE; | |
686 | else if (*s == '\n') | |
687 | break; | |
688 | s++; | |
689 | } | |
690 | itemsize = s - item; | |
691 | break; | |
a0ed51b3 | 692 | } |
a0d0e21e LW |
693 | |
694 | case FF_CHECKCHOP: | |
5a34cab7 NC |
695 | { |
696 | const char *s = item = SvPV_const(sv, len); | |
697 | itemsize = len; | |
698 | if (DO_UTF8(sv)) { | |
699 | itemsize = sv_len_utf8(sv); | |
700 | if (itemsize != (I32)len) { | |
701 | I32 itembytes; | |
702 | if (itemsize <= fieldsize) { | |
703 | const char *send = chophere = s + itemsize; | |
704 | while (s < send) { | |
705 | if (*s == '\r') { | |
706 | itemsize = s - item; | |
a0ed51b3 | 707 | chophere = s; |
a0ed51b3 | 708 | break; |
5a34cab7 NC |
709 | } |
710 | if (*s++ & ~31) | |
a0ed51b3 | 711 | gotsome = TRUE; |
a0ed51b3 | 712 | } |
a0ed51b3 | 713 | } |
5a34cab7 NC |
714 | else { |
715 | const char *send; | |
716 | itemsize = fieldsize; | |
717 | itembytes = itemsize; | |
718 | sv_pos_u2b(sv, &itembytes, 0); | |
719 | send = chophere = s + itembytes; | |
720 | while (s < send || (s == send && isSPACE(*s))) { | |
721 | if (isSPACE(*s)) { | |
722 | if (chopspace) | |
723 | chophere = s; | |
724 | if (*s == '\r') | |
725 | break; | |
726 | } | |
727 | else { | |
728 | if (*s & ~31) | |
729 | gotsome = TRUE; | |
730 | if (strchr(PL_chopset, *s)) | |
731 | chophere = s + 1; | |
732 | } | |
733 | s++; | |
734 | } | |
735 | itemsize = chophere - item; | |
736 | sv_pos_b2u(sv, &itemsize); | |
737 | } | |
738 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
739 | break; |
740 | } | |
a0d0e21e | 741 | } |
5a34cab7 NC |
742 | item_is_utf8 = FALSE; |
743 | if (itemsize <= fieldsize) { | |
744 | const char *const send = chophere = s + itemsize; | |
745 | while (s < send) { | |
746 | if (*s == '\r') { | |
747 | itemsize = s - item; | |
a0d0e21e | 748 | chophere = s; |
a0d0e21e | 749 | break; |
5a34cab7 NC |
750 | } |
751 | if (*s++ & ~31) | |
a0d0e21e | 752 | gotsome = TRUE; |
a0d0e21e | 753 | } |
a0d0e21e | 754 | } |
5a34cab7 NC |
755 | else { |
756 | const char *send; | |
757 | itemsize = fieldsize; | |
758 | send = chophere = s + itemsize; | |
759 | while (s < send || (s == send && isSPACE(*s))) { | |
760 | if (isSPACE(*s)) { | |
761 | if (chopspace) | |
762 | chophere = s; | |
763 | if (*s == '\r') | |
764 | break; | |
765 | } | |
766 | else { | |
767 | if (*s & ~31) | |
768 | gotsome = TRUE; | |
769 | if (strchr(PL_chopset, *s)) | |
770 | chophere = s + 1; | |
771 | } | |
772 | s++; | |
773 | } | |
774 | itemsize = chophere - item; | |
775 | } | |
776 | break; | |
a0d0e21e | 777 | } |
a0d0e21e LW |
778 | |
779 | case FF_SPACE: | |
780 | arg = fieldsize - itemsize; | |
781 | if (arg) { | |
782 | fieldsize -= arg; | |
783 | while (arg-- > 0) | |
784 | *t++ = ' '; | |
785 | } | |
786 | break; | |
787 | ||
788 | case FF_HALFSPACE: | |
789 | arg = fieldsize - itemsize; | |
790 | if (arg) { | |
791 | arg /= 2; | |
792 | fieldsize -= arg; | |
793 | while (arg-- > 0) | |
794 | *t++ = ' '; | |
795 | } | |
796 | break; | |
797 | ||
798 | case FF_ITEM: | |
5a34cab7 NC |
799 | { |
800 | const char *s = item; | |
801 | arg = itemsize; | |
802 | if (item_is_utf8) { | |
803 | if (!targ_is_utf8) { | |
804 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
805 | *t = '\0'; | |
7bf79863 KW |
806 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
807 | fudge + 1); | |
5a34cab7 NC |
808 | t = SvEND(PL_formtarget); |
809 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 810 | } |
5a34cab7 NC |
811 | while (arg--) { |
812 | if (UTF8_IS_CONTINUED(*s)) { | |
813 | STRLEN skip = UTF8SKIP(s); | |
814 | switch (skip) { | |
815 | default: | |
816 | Move(s,t,skip,char); | |
817 | s += skip; | |
818 | t += skip; | |
819 | break; | |
820 | case 7: *t++ = *s++; | |
821 | case 6: *t++ = *s++; | |
822 | case 5: *t++ = *s++; | |
823 | case 4: *t++ = *s++; | |
824 | case 3: *t++ = *s++; | |
825 | case 2: *t++ = *s++; | |
826 | case 1: *t++ = *s++; | |
827 | } | |
828 | } | |
829 | else { | |
830 | if ( !((*t++ = *s++) & ~31) ) | |
831 | t[-1] = ' '; | |
832 | } | |
a0ed51b3 | 833 | } |
5a34cab7 | 834 | break; |
a0ed51b3 | 835 | } |
5a34cab7 NC |
836 | if (targ_is_utf8 && !item_is_utf8) { |
837 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
838 | *t = '\0'; | |
839 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
840 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 841 | #ifdef EBCDIC |
901017d6 | 842 | const int ch = *t; |
5a34cab7 | 843 | if (iscntrl(ch)) |
78da4d13 | 844 | #else |
5a34cab7 | 845 | if (!(*t & ~31)) |
78da4d13 | 846 | #endif |
5a34cab7 NC |
847 | *t = ' '; |
848 | } | |
849 | break; | |
78da4d13 | 850 | } |
5a34cab7 | 851 | while (arg--) { |
9d116dd7 | 852 | #ifdef EBCDIC |
901017d6 | 853 | const int ch = *t++ = *s++; |
5a34cab7 | 854 | if (iscntrl(ch)) |
a0d0e21e | 855 | #else |
5a34cab7 | 856 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 857 | #endif |
5a34cab7 NC |
858 | t[-1] = ' '; |
859 | } | |
860 | break; | |
a0d0e21e | 861 | } |
a0d0e21e LW |
862 | |
863 | case FF_CHOP: | |
5a34cab7 NC |
864 | { |
865 | const char *s = chophere; | |
866 | if (chopspace) { | |
af68e756 | 867 | while (isSPACE(*s)) |
5a34cab7 NC |
868 | s++; |
869 | } | |
870 | sv_chop(sv,s); | |
871 | SvSETMAGIC(sv); | |
872 | break; | |
a0d0e21e | 873 | } |
a0d0e21e | 874 | |
a1b95068 LW |
875 | case FF_LINESNGL: |
876 | chopspace = 0; | |
a0d0e21e | 877 | case FF_LINEGLOB: |
5a34cab7 | 878 | { |
e32383e2 | 879 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 880 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 881 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 882 | itemsize = len; |
5a34cab7 | 883 | if (itemsize) { |
e8e72d41 | 884 | STRLEN to_copy = itemsize; |
5a34cab7 | 885 | const char *const send = s + len; |
35c6393c | 886 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
887 | U8 *tmp = NULL; |
888 | ||
5a34cab7 NC |
889 | gotsome = TRUE; |
890 | chophere = s + itemsize; | |
891 | while (s < send) { | |
892 | if (*s++ == '\n') { | |
893 | if (oneline) { | |
e8e72d41 | 894 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
895 | chophere = s; |
896 | break; | |
897 | } else { | |
898 | if (s == send) { | |
899 | itemsize--; | |
e8e72d41 | 900 | to_copy--; |
5a34cab7 NC |
901 | } else |
902 | lines++; | |
903 | } | |
1bd51a4c | 904 | } |
a0d0e21e | 905 | } |
e8e72d41 | 906 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 907 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
908 | SvCUR_set(PL_formtarget, |
909 | t - SvPVX_const(PL_formtarget)); | |
910 | } else { | |
911 | if (item_is_utf8 && !targ_is_utf8) { | |
912 | /* Upgrade targ to UTF8, and then we reduce it to | |
913 | a problem we have a simple solution for. */ | |
914 | SvCUR_set(PL_formtarget, | |
915 | t - SvPVX_const(PL_formtarget)); | |
916 | targ_is_utf8 = TRUE; | |
917 | /* Don't need get magic. */ | |
7bf79863 | 918 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
919 | } else { |
920 | SvCUR_set(PL_formtarget, | |
921 | t - SvPVX_const(PL_formtarget)); | |
922 | } | |
e8e72d41 NC |
923 | |
924 | /* Easy. They agree. */ | |
925 | assert (item_is_utf8 == targ_is_utf8); | |
926 | } | |
927 | SvGROW(PL_formtarget, | |
928 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 929 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
930 | |
931 | Copy(source, t, to_copy, char); | |
932 | t += to_copy; | |
933 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 934 | if (item_is_utf8) { |
e8e72d41 NC |
935 | if (SvGMAGICAL(sv)) { |
936 | /* Mustn't call sv_pos_b2u() as it does a second | |
937 | mg_get(). Is this a bug? Do we need a _flags() | |
938 | variant? */ | |
939 | itemsize = utf8_length(source, source + itemsize); | |
940 | } else { | |
941 | sv_pos_b2u(sv, &itemsize); | |
942 | } | |
943 | assert(!tmp); | |
944 | } else if (tmp) { | |
945 | Safefree(tmp); | |
f3f2f1a3 | 946 | } |
a0d0e21e | 947 | } |
5a34cab7 | 948 | break; |
a0d0e21e | 949 | } |
a0d0e21e | 950 | |
a1b95068 LW |
951 | case FF_0DECIMAL: |
952 | arg = *fpc++; | |
953 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
954 | fmt = (const char *) |
955 | ((arg & 256) ? | |
956 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 957 | #else |
10edeb5d JH |
958 | fmt = (const char *) |
959 | ((arg & 256) ? | |
960 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 LW |
961 | #endif |
962 | goto ff_dec; | |
a0d0e21e | 963 | case FF_DECIMAL: |
a0d0e21e | 964 | arg = *fpc++; |
65202027 | 965 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
966 | fmt = (const char *) |
967 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 968 | #else |
10edeb5d JH |
969 | fmt = (const char *) |
970 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 971 | #endif |
a1b95068 | 972 | ff_dec: |
784707d5 JP |
973 | /* If the field is marked with ^ and the value is undefined, |
974 | blank it out. */ | |
784707d5 JP |
975 | if ((arg & 512) && !SvOK(sv)) { |
976 | arg = fieldsize; | |
977 | while (arg--) | |
978 | *t++ = ' '; | |
979 | break; | |
980 | } | |
981 | gotsome = TRUE; | |
982 | value = SvNV(sv); | |
a1b95068 | 983 | /* overflow evidence */ |
bfed75c6 | 984 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 LW |
985 | arg = fieldsize; |
986 | while (arg--) | |
987 | *t++ = '#'; | |
988 | break; | |
989 | } | |
784707d5 JP |
990 | /* Formats aren't yet marked for locales, so assume "yes". */ |
991 | { | |
992 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 993 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
994 | RESTORE_NUMERIC_STANDARD(); |
995 | } | |
996 | t += fieldsize; | |
997 | break; | |
a1b95068 | 998 | |
a0d0e21e LW |
999 | case FF_NEWLINE: |
1000 | f++; | |
1001 | while (t-- > linemark && *t == ' ') ; | |
1002 | t++; | |
1003 | *t++ = '\n'; | |
1004 | break; | |
1005 | ||
1006 | case FF_BLANK: | |
1007 | arg = *fpc++; | |
1008 | if (gotsome) { | |
1009 | if (arg) { /* repeat until fields exhausted? */ | |
1010 | *t = '\0'; | |
b15aece3 | 1011 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 1012 | lines += FmLINES(PL_formtarget); |
1bd51a4c IH |
1013 | if (targ_is_utf8) |
1014 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1015 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
1016 | SP = ORIGMARK; |
1017 | RETURNOP(cLISTOP->op_first); | |
1018 | } | |
1019 | } | |
1020 | else { | |
1021 | t = linemark; | |
1022 | lines--; | |
1023 | } | |
1024 | break; | |
1025 | ||
1026 | case FF_MORE: | |
5a34cab7 NC |
1027 | { |
1028 | const char *s = chophere; | |
1029 | const char *send = item + len; | |
1030 | if (chopspace) { | |
af68e756 | 1031 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 1032 | s++; |
a0d0e21e | 1033 | } |
5a34cab7 NC |
1034 | if (s < send) { |
1035 | char *s1; | |
1036 | arg = fieldsize - itemsize; | |
1037 | if (arg) { | |
1038 | fieldsize -= arg; | |
1039 | while (arg-- > 0) | |
1040 | *t++ = ' '; | |
1041 | } | |
1042 | s1 = t - 3; | |
1043 | if (strnEQ(s1," ",3)) { | |
1044 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
1045 | s1--; | |
1046 | } | |
1047 | *s1++ = '.'; | |
1048 | *s1++ = '.'; | |
1049 | *s1++ = '.'; | |
a0d0e21e | 1050 | } |
5a34cab7 | 1051 | break; |
a0d0e21e | 1052 | } |
a0d0e21e LW |
1053 | case FF_END: |
1054 | *t = '\0'; | |
b15aece3 | 1055 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
1056 | if (targ_is_utf8) |
1057 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1058 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
1059 | SP = ORIGMARK; |
1060 | RETPUSHYES; | |
1061 | } | |
1062 | } | |
1063 | } | |
1064 | ||
1065 | PP(pp_grepstart) | |
1066 | { | |
27da23d5 | 1067 | dVAR; dSP; |
a0d0e21e LW |
1068 | SV *src; |
1069 | ||
3280af22 | 1070 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 1071 | (void)POPMARK; |
54310121 | 1072 | if (GIMME_V == G_SCALAR) |
6e449a3a | 1073 | mXPUSHi(0); |
533c011a | 1074 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 1075 | } |
3280af22 | 1076 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
897d3989 NC |
1077 | Perl_pp_pushmark(aTHX); /* push dst */ |
1078 | Perl_pp_pushmark(aTHX); /* push src */ | |
d343c3ef | 1079 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
1080 | |
1081 | SAVETMPS; | |
59f00321 RGS |
1082 | if (PL_op->op_private & OPpGREP_LEX) |
1083 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1084 | else | |
1085 | SAVE_DEFSV; | |
d343c3ef | 1086 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1087 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1088 | |
3280af22 | 1089 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1090 | SvTEMP_off(src); |
59f00321 RGS |
1091 | if (PL_op->op_private & OPpGREP_LEX) |
1092 | PAD_SVl(PL_op->op_targ) = src; | |
1093 | else | |
414bf5ae | 1094 | DEFSV_set(src); |
a0d0e21e LW |
1095 | |
1096 | PUTBACK; | |
533c011a | 1097 | if (PL_op->op_type == OP_MAPSTART) |
897d3989 | 1098 | Perl_pp_pushmark(aTHX); /* push top */ |
533c011a | 1099 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1100 | } |
1101 | ||
a0d0e21e LW |
1102 | PP(pp_mapwhile) |
1103 | { | |
27da23d5 | 1104 | dVAR; dSP; |
f54cb97a | 1105 | const I32 gimme = GIMME_V; |
544f3153 | 1106 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1107 | I32 count; |
1108 | I32 shift; | |
1109 | SV** src; | |
ac27b0f5 | 1110 | SV** dst; |
a0d0e21e | 1111 | |
544f3153 | 1112 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1113 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1114 | |
1115 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1116 | if (items && gimme != G_VOID) { |
544f3153 GS |
1117 | /* might need to make room back there first */ |
1118 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1119 | /* XXX this implementation is very pessimal because the stack | |
1120 | * is repeatedly extended for every set of items. Is possible | |
1121 | * to do this without any stack extension or copying at all | |
1122 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1123 | * (like foreach does). --gsar */ |
544f3153 GS |
1124 | |
1125 | /* everything in the stack after the destination list moves | |
1126 | * towards the end the stack by the amount of room needed */ | |
1127 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1128 | ||
1129 | /* items to shift up (accounting for the moved source pointer) */ | |
1130 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1131 | |
1132 | /* This optimization is by Ben Tilly and it does | |
1133 | * things differently from what Sarathy (gsar) | |
1134 | * is describing. The downside of this optimization is | |
1135 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1136 | * to the Perl stack, but on the other hand this | |
1137 | * shouldn't be a problem. If Sarathy's idea gets | |
1138 | * implemented, this optimization should become | |
1139 | * irrelevant. --jhi */ | |
1140 | if (shift < count) | |
1141 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1142 | |
924508f0 GS |
1143 | EXTEND(SP,shift); |
1144 | src = SP; | |
1145 | dst = (SP += shift); | |
3280af22 NIS |
1146 | PL_markstack_ptr[-1] += shift; |
1147 | *PL_markstack_ptr += shift; | |
544f3153 | 1148 | while (count--) |
a0d0e21e LW |
1149 | *dst-- = *src--; |
1150 | } | |
544f3153 | 1151 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1152 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 | 1153 | if (gimme == G_ARRAY) { |
b2a2a901 DM |
1154 | /* add returned items to the collection (making mortal copies |
1155 | * if necessary), then clear the current temps stack frame | |
1156 | * *except* for those items. We do this splicing the items | |
1157 | * into the start of the tmps frame (so some items may be on | |
59d53fd6 | 1158 | * the tmps stack twice), then moving PL_tmps_floor above |
b2a2a901 DM |
1159 | * them, then freeing the frame. That way, the only tmps that |
1160 | * accumulate over iterations are the return values for map. | |
1161 | * We have to do to this way so that everything gets correctly | |
1162 | * freed if we die during the map. | |
1163 | */ | |
1164 | I32 tmpsbase; | |
1165 | I32 i = items; | |
1166 | /* make space for the slice */ | |
1167 | EXTEND_MORTAL(items); | |
1168 | tmpsbase = PL_tmps_floor + 1; | |
1169 | Move(PL_tmps_stack + tmpsbase, | |
1170 | PL_tmps_stack + tmpsbase + items, | |
1171 | PL_tmps_ix - PL_tmps_floor, | |
1172 | SV*); | |
1173 | PL_tmps_ix += items; | |
1174 | ||
1175 | while (i-- > 0) { | |
1176 | SV *sv = POPs; | |
1177 | if (!SvTEMP(sv)) | |
1178 | sv = sv_mortalcopy(sv); | |
1179 | *dst-- = sv; | |
1180 | PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv); | |
1181 | } | |
1182 | /* clear the stack frame except for the items */ | |
1183 | PL_tmps_floor += items; | |
1184 | FREETMPS; | |
1185 | /* FREETMPS may have cleared the TEMP flag on some of the items */ | |
1186 | i = items; | |
1187 | while (i-- > 0) | |
1188 | SvTEMP_on(PL_tmps_stack[--tmpsbase]); | |
22023b26 | 1189 | } |
bfed75c6 | 1190 | else { |
22023b26 TP |
1191 | /* scalar context: we don't care about which values map returns |
1192 | * (we use undef here). And so we certainly don't want to do mortal | |
1193 | * copies of meaningless values. */ | |
1194 | while (items-- > 0) { | |
b988aa42 | 1195 | (void)POPs; |
22023b26 TP |
1196 | *dst-- = &PL_sv_undef; |
1197 | } | |
b2a2a901 | 1198 | FREETMPS; |
22023b26 | 1199 | } |
a0d0e21e | 1200 | } |
b2a2a901 DM |
1201 | else { |
1202 | FREETMPS; | |
1203 | } | |
d343c3ef | 1204 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1205 | |
1206 | /* All done yet? */ | |
3280af22 | 1207 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1208 | |
1209 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1210 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1211 | (void)POPMARK; /* pop src */ |
3280af22 | 1212 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1213 | (void)POPMARK; /* pop dst */ |
3280af22 | 1214 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1215 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1216 | if (PL_op->op_private & OPpGREP_LEX) { |
1217 | SV* sv = sv_newmortal(); | |
1218 | sv_setiv(sv, items); | |
1219 | PUSHs(sv); | |
1220 | } | |
1221 | else { | |
1222 | dTARGET; | |
1223 | XPUSHi(items); | |
1224 | } | |
a0d0e21e | 1225 | } |
54310121 PP |
1226 | else if (gimme == G_ARRAY) |
1227 | SP += items; | |
a0d0e21e LW |
1228 | RETURN; |
1229 | } | |
1230 | else { | |
1231 | SV *src; | |
1232 | ||
d343c3ef | 1233 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1234 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1235 | |
544f3153 | 1236 | /* set $_ to the new source item */ |
3280af22 | 1237 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1238 | SvTEMP_off(src); |
59f00321 RGS |
1239 | if (PL_op->op_private & OPpGREP_LEX) |
1240 | PAD_SVl(PL_op->op_targ) = src; | |
1241 | else | |
414bf5ae | 1242 | DEFSV_set(src); |
a0d0e21e LW |
1243 | |
1244 | RETURNOP(cLOGOP->op_other); | |
1245 | } | |
1246 | } | |
1247 | ||
a0d0e21e LW |
1248 | /* Range stuff. */ |
1249 | ||
1250 | PP(pp_range) | |
1251 | { | |
97aff369 | 1252 | dVAR; |
a0d0e21e | 1253 | if (GIMME == G_ARRAY) |
1a67a97c | 1254 | return NORMAL; |
538573f7 | 1255 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1256 | return cLOGOP->op_other; |
538573f7 | 1257 | else |
1a67a97c | 1258 | return NORMAL; |
a0d0e21e LW |
1259 | } |
1260 | ||
1261 | PP(pp_flip) | |
1262 | { | |
97aff369 | 1263 | dVAR; |
39644a26 | 1264 | dSP; |
a0d0e21e LW |
1265 | |
1266 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1267 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1268 | } |
1269 | else { | |
1270 | dTOPss; | |
44f8325f | 1271 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1272 | int flip = 0; |
790090df | 1273 | |
bfed75c6 | 1274 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1275 | if (GvIO(PL_last_in_gv)) { |
1276 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1277 | } | |
1278 | else { | |
fafc274c | 1279 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1280 | if (gv && GvSV(gv)) |
1281 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1282 | } |
bfed75c6 AL |
1283 | } else { |
1284 | flip = SvTRUE(sv); | |
1285 | } | |
1286 | if (flip) { | |
a0d0e21e | 1287 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1288 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1289 | sv_setiv(targ, 1); |
3e3baf6d | 1290 | SETs(targ); |
a0d0e21e LW |
1291 | RETURN; |
1292 | } | |
1293 | else { | |
1294 | sv_setiv(targ, 0); | |
924508f0 | 1295 | SP--; |
1a67a97c | 1296 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1297 | } |
1298 | } | |
76f68e9b | 1299 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1300 | SETs(targ); |
1301 | RETURN; | |
1302 | } | |
1303 | } | |
1304 | ||
8e9bbdb9 RGS |
1305 | /* This code tries to decide if "$left .. $right" should use the |
1306 | magical string increment, or if the range is numeric (we make | |
1307 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1308 | ||
1309 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1310 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1311 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1312 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1313 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1314 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1315 | |
a0d0e21e LW |
1316 | PP(pp_flop) |
1317 | { | |
97aff369 | 1318 | dVAR; dSP; |
a0d0e21e LW |
1319 | |
1320 | if (GIMME == G_ARRAY) { | |
1321 | dPOPPOPssrl; | |
86cb7173 | 1322 | |
5b295bef RD |
1323 | SvGETMAGIC(left); |
1324 | SvGETMAGIC(right); | |
a0d0e21e | 1325 | |
8e9bbdb9 | 1326 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1327 | register IV i, j; |
1328 | IV max; | |
4fe3f0fa MHM |
1329 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1330 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1331 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1332 | i = SvIV(left); |
1333 | max = SvIV(right); | |
bbce6d69 | 1334 | if (max >= i) { |
c1ab3db2 AK |
1335 | j = max - i + 1; |
1336 | EXTEND_MORTAL(j); | |
1337 | EXTEND(SP, j); | |
bbce6d69 | 1338 | } |
c1ab3db2 AK |
1339 | else |
1340 | j = 0; | |
1341 | while (j--) { | |
901017d6 | 1342 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1343 | PUSHs(sv); |
1344 | } | |
1345 | } | |
1346 | else { | |
44f8325f | 1347 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1348 | STRLEN len; |
823a54a3 | 1349 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1350 | |
901017d6 | 1351 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1352 | SvPV_force_nolen(sv); |
89ea2908 | 1353 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1354 | XPUSHs(sv); |
b15aece3 | 1355 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1356 | break; |
a0d0e21e LW |
1357 | sv = sv_2mortal(newSVsv(sv)); |
1358 | sv_inc(sv); | |
1359 | } | |
a0d0e21e LW |
1360 | } |
1361 | } | |
1362 | else { | |
1363 | dTOPss; | |
901017d6 | 1364 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1365 | int flop = 0; |
a0d0e21e | 1366 | sv_inc(targ); |
4e3399f9 YST |
1367 | |
1368 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1369 | if (GvIO(PL_last_in_gv)) { | |
1370 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1371 | } | |
1372 | else { | |
fafc274c | 1373 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1374 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1375 | } | |
1376 | } | |
1377 | else { | |
1378 | flop = SvTRUE(sv); | |
1379 | } | |
1380 | ||
1381 | if (flop) { | |
a0d0e21e | 1382 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1383 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1384 | } |
1385 | SETs(targ); | |
1386 | } | |
1387 | ||
1388 | RETURN; | |
1389 | } | |
1390 | ||
1391 | /* Control. */ | |
1392 | ||
27da23d5 | 1393 | static const char * const context_name[] = { |
515afda2 | 1394 | "pseudo-block", |
f31522f3 | 1395 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1396 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1397 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1398 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1399 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1400 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1401 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1402 | "subroutine", |
76753e7f | 1403 | "format", |
515afda2 | 1404 | "eval", |
515afda2 | 1405 | "substitution", |
515afda2 NC |
1406 | }; |
1407 | ||
76e3520e | 1408 | STATIC I32 |
06b5626a | 1409 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1410 | { |
97aff369 | 1411 | dVAR; |
a0d0e21e | 1412 | register I32 i; |
a0d0e21e | 1413 | |
7918f24d NC |
1414 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1415 | ||
a0d0e21e | 1416 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1417 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1418 | switch (CxTYPE(cx)) { |
a0d0e21e | 1419 | case CXt_SUBST: |
a0d0e21e | 1420 | case CXt_SUB: |
7766f137 | 1421 | case CXt_FORMAT: |
a0d0e21e | 1422 | case CXt_EVAL: |
0a753a76 | 1423 | case CXt_NULL: |
a2a5de95 NC |
1424 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1425 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1426 | if (CxTYPE(cx) == CXt_NULL) |
1427 | return -1; | |
1428 | break; | |
c6fdafd0 | 1429 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1430 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1431 | case CXt_LOOP_FOR: |
1432 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1433 | { |
1434 | const char *cx_label = CxLABEL(cx); | |
1435 | if (!cx_label || strNE(label, cx_label) ) { | |
1c98cc53 | 1436 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1437 | (long)i, cx_label)); |
a0d0e21e LW |
1438 | continue; |
1439 | } | |
1c98cc53 | 1440 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1441 | return i; |
7e8f1eac | 1442 | } |
a0d0e21e LW |
1443 | } |
1444 | } | |
1445 | return i; | |
1446 | } | |
1447 | ||
0d863452 RH |
1448 | |
1449 | ||
e50aee73 | 1450 | I32 |
864dbfa3 | 1451 | Perl_dowantarray(pTHX) |
e50aee73 | 1452 | { |
97aff369 | 1453 | dVAR; |
f54cb97a | 1454 | const I32 gimme = block_gimme(); |
54310121 PP |
1455 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1456 | } | |
1457 | ||
1458 | I32 | |
864dbfa3 | 1459 | Perl_block_gimme(pTHX) |
54310121 | 1460 | { |
97aff369 | 1461 | dVAR; |
06b5626a | 1462 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1463 | if (cxix < 0) |
46fc3d4c | 1464 | return G_VOID; |
e50aee73 | 1465 | |
54310121 | 1466 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1467 | case G_VOID: |
1468 | return G_VOID; | |
54310121 | 1469 | case G_SCALAR: |
e50aee73 | 1470 | return G_SCALAR; |
54310121 PP |
1471 | case G_ARRAY: |
1472 | return G_ARRAY; | |
1473 | default: | |
cea2e8a9 | 1474 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1475 | /* NOTREACHED */ |
1476 | return 0; | |
54310121 | 1477 | } |
e50aee73 AD |
1478 | } |
1479 | ||
78f9721b SM |
1480 | I32 |
1481 | Perl_is_lvalue_sub(pTHX) | |
1482 | { | |
97aff369 | 1483 | dVAR; |
06b5626a | 1484 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1485 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1486 | ||
bafb2adc NC |
1487 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1488 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1489 | else |
1490 | return 0; | |
1491 | } | |
1492 | ||
76e3520e | 1493 | STATIC I32 |
901017d6 | 1494 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1495 | { |
97aff369 | 1496 | dVAR; |
a0d0e21e | 1497 | I32 i; |
7918f24d NC |
1498 | |
1499 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1500 | ||
a0d0e21e | 1501 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1502 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1503 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1504 | default: |
1505 | continue; | |
1506 | case CXt_EVAL: | |
1507 | case CXt_SUB: | |
7766f137 | 1508 | case CXt_FORMAT: |
1c98cc53 | 1509 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1510 | return i; |
1511 | } | |
1512 | } | |
1513 | return i; | |
1514 | } | |
1515 | ||
76e3520e | 1516 | STATIC I32 |
cea2e8a9 | 1517 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1518 | { |
97aff369 | 1519 | dVAR; |
a0d0e21e | 1520 | I32 i; |
a0d0e21e | 1521 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1522 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1523 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1524 | default: |
1525 | continue; | |
1526 | case CXt_EVAL: | |
1c98cc53 | 1527 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1528 | return i; |
1529 | } | |
1530 | } | |
1531 | return i; | |
1532 | } | |
1533 | ||
76e3520e | 1534 | STATIC I32 |
cea2e8a9 | 1535 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1536 | { |
97aff369 | 1537 | dVAR; |
a0d0e21e | 1538 | I32 i; |
a0d0e21e | 1539 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1540 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1541 | switch (CxTYPE(cx)) { |
a0d0e21e | 1542 | case CXt_SUBST: |
a0d0e21e | 1543 | case CXt_SUB: |
7766f137 | 1544 | case CXt_FORMAT: |
a0d0e21e | 1545 | case CXt_EVAL: |
0a753a76 | 1546 | case CXt_NULL: |
a2a5de95 NC |
1547 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1548 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1549 | if ((CxTYPE(cx)) == CXt_NULL) |
1550 | return -1; | |
1551 | break; | |
c6fdafd0 | 1552 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1553 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1554 | case CXt_LOOP_FOR: |
1555 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1556 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1557 | return i; |
1558 | } | |
1559 | } | |
1560 | return i; | |
1561 | } | |
1562 | ||
0d863452 RH |
1563 | STATIC I32 |
1564 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1565 | { | |
97aff369 | 1566 | dVAR; |
0d863452 RH |
1567 | I32 i; |
1568 | for (i = startingblock; i >= 0; i--) { | |
1569 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1570 | switch (CxTYPE(cx)) { | |
1571 | default: | |
1572 | continue; | |
1573 | case CXt_GIVEN: | |
1c98cc53 | 1574 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1575 | return i; |
3b719c58 NC |
1576 | case CXt_LOOP_PLAIN: |
1577 | assert(!CxFOREACHDEF(cx)); | |
1578 | break; | |
c6fdafd0 | 1579 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1580 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1581 | case CXt_LOOP_FOR: |
0d863452 | 1582 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1583 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1584 | return i; |
1585 | } | |
1586 | } | |
1587 | } | |
1588 | return i; | |
1589 | } | |
1590 | ||
1591 | STATIC I32 | |
1592 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1593 | { | |
97aff369 | 1594 | dVAR; |
0d863452 RH |
1595 | I32 i; |
1596 | for (i = startingblock; i >= 0; i--) { | |
1597 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1598 | switch (CxTYPE(cx)) { | |
1599 | default: | |
1600 | continue; | |
1601 | case CXt_WHEN: | |
1c98cc53 | 1602 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1603 | return i; |
1604 | } | |
1605 | } | |
1606 | return i; | |
1607 | } | |
1608 | ||
a0d0e21e | 1609 | void |
864dbfa3 | 1610 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1611 | { |
97aff369 | 1612 | dVAR; |
a0d0e21e LW |
1613 | I32 optype; |
1614 | ||
1615 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1616 | SV *sv; |
06b5626a | 1617 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1618 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1619 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1620 | switch (CxTYPE(cx)) { |
c90c0ff4 PP |
1621 | case CXt_SUBST: |
1622 | POPSUBST(cx); | |
1623 | continue; /* not break */ | |
a0d0e21e | 1624 | case CXt_SUB: |
b0d9ce38 GS |
1625 | POPSUB(cx,sv); |
1626 | LEAVESUB(sv); | |
a0d0e21e LW |
1627 | break; |
1628 | case CXt_EVAL: | |
1629 | POPEVAL(cx); | |
1630 | break; | |
c6fdafd0 | 1631 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1632 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1633 | case CXt_LOOP_FOR: |
1634 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1635 | POPLOOP(cx); |
1636 | break; | |
0a753a76 | 1637 | case CXt_NULL: |
a0d0e21e | 1638 | break; |
7766f137 GS |
1639 | case CXt_FORMAT: |
1640 | POPFORMAT(cx); | |
1641 | break; | |
a0d0e21e | 1642 | } |
c90c0ff4 | 1643 | cxstack_ix--; |
a0d0e21e | 1644 | } |
1b6737cc | 1645 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1646 | } |
1647 | ||
5a844595 GS |
1648 | void |
1649 | Perl_qerror(pTHX_ SV *err) | |
1650 | { | |
97aff369 | 1651 | dVAR; |
7918f24d NC |
1652 | |
1653 | PERL_ARGS_ASSERT_QERROR; | |
1654 | ||
6b2fb389 DM |
1655 | if (PL_in_eval) { |
1656 | if (PL_in_eval & EVAL_KEEPERR) { | |
1657 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", | |
1658 | SvPV_nolen_const(err)); | |
1659 | } | |
1660 | else | |
1661 | sv_catsv(ERRSV, err); | |
1662 | } | |
5a844595 GS |
1663 | else if (PL_errors) |
1664 | sv_catsv(PL_errors, err); | |
1665 | else | |
be2597df | 1666 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1667 | if (PL_parser) |
1668 | ++PL_parser->error_count; | |
5a844595 GS |
1669 | } |
1670 | ||
bb4c52e0 | 1671 | void |
c5df3096 | 1672 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1673 | { |
27da23d5 | 1674 | dVAR; |
c5df3096 | 1675 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1676 | U8 in_eval = PL_in_eval; |
c5df3096 | 1677 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1678 | |
96d9b9cd | 1679 | if (in_eval) { |
a0d0e21e | 1680 | I32 cxix; |
a0d0e21e | 1681 | I32 gimme; |
a0d0e21e | 1682 | |
22a30693 Z |
1683 | /* |
1684 | * Historically, perl used to set ERRSV ($@) early in the die | |
1685 | * process and rely on it not getting clobbered during unwinding. | |
1686 | * That sucked, because it was liable to get clobbered, so the | |
1687 | * setting of ERRSV used to emit the exception from eval{} has | |
1688 | * been moved to much later, after unwinding (see just before | |
1689 | * JMPENV_JUMP below). However, some modules were relying on the | |
1690 | * early setting, by examining $@ during unwinding to use it as | |
1691 | * a flag indicating whether the current unwinding was caused by | |
1692 | * an exception. It was never a reliable flag for that purpose, | |
1693 | * being totally open to false positives even without actual | |
1694 | * clobberage, but was useful enough for production code to | |
1695 | * semantically rely on it. | |
1696 | * | |
1697 | * We'd like to have a proper introspective interface that | |
1698 | * explicitly describes the reason for whatever unwinding | |
1699 | * operations are currently in progress, so that those modules | |
1700 | * work reliably and $@ isn't further overloaded. But we don't | |
1701 | * have one yet. In its absence, as a stopgap measure, ERRSV is | |
1702 | * now *additionally* set here, before unwinding, to serve as the | |
1703 | * (unreliable) flag that it used to. | |
1704 | * | |
1705 | * This behaviour is temporary, and should be removed when a | |
1706 | * proper way to detect exceptional unwinding has been developed. | |
1707 | * As of 2010-12, the authors of modules relying on the hack | |
1708 | * are aware of the issue, because the modules failed on | |
1709 | * perls 5.13.{1..7} which had late setting of $@ without this | |
1710 | * early-setting hack. | |
1711 | */ | |
1712 | if (!(in_eval & EVAL_KEEPERR)) { | |
1713 | SvTEMP_off(exceptsv); | |
1714 | sv_setsv(ERRSV, exceptsv); | |
1715 | } | |
1716 | ||
5a844595 GS |
1717 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1718 | && PL_curstackinfo->si_prev) | |
1719 | { | |
bac4b2ad | 1720 | dounwind(-1); |
d3acc0f7 | 1721 | POPSTACK; |
bac4b2ad | 1722 | } |
e336de0d | 1723 | |
a0d0e21e LW |
1724 | if (cxix >= 0) { |
1725 | I32 optype; | |
b6494f15 | 1726 | SV *namesv; |
35a4481c | 1727 | register PERL_CONTEXT *cx; |
901017d6 | 1728 | SV **newsp; |
8f89e5a9 Z |
1729 | COP *oldcop; |
1730 | JMPENV *restartjmpenv; | |
1731 | OP *restartop; | |
a0d0e21e LW |
1732 | |
1733 | if (cxix < cxstack_ix) | |
1734 | dounwind(cxix); | |
1735 | ||
3280af22 | 1736 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1737 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1738 | STRLEN msglen; |
96d9b9cd | 1739 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1740 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1741 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1742 | my_exit(1); |
1743 | } | |
1744 | POPEVAL(cx); | |
b6494f15 | 1745 | namesv = cx->blk_eval.old_namesv; |
8f89e5a9 Z |
1746 | oldcop = cx->blk_oldcop; |
1747 | restartjmpenv = cx->blk_eval.cur_top_env; | |
1748 | restartop = cx->blk_eval.retop; | |
a0d0e21e LW |
1749 | |
1750 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1751 | *++newsp = &PL_sv_undef; |
1752 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1753 | |
1754 | LEAVE; | |
748a9306 | 1755 | |
7fb6a879 GS |
1756 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1757 | * XXX it might be better to find a way to avoid messing with | |
1758 | * PL_curcop in save_re_context() instead, but this is a more | |
1759 | * minimal fix --GSAR */ | |
8f89e5a9 | 1760 | PL_curcop = oldcop; |
7fb6a879 | 1761 | |
7a2e2cd6 | 1762 | if (optype == OP_REQUIRE) { |
96d9b9cd | 1763 | const char* const msg = SvPVx_nolen_const(exceptsv); |
b6494f15 VP |
1764 | (void)hv_store(GvHVn(PL_incgv), |
1765 | SvPVX_const(namesv), SvCUR(namesv), | |
27bcc0a7 | 1766 | &PL_sv_undef, 0); |
27e90453 DM |
1767 | /* note that unlike pp_entereval, pp_require isn't |
1768 | * supposed to trap errors. So now that we've popped the | |
1769 | * EVAL that pp_require pushed, and processed the error | |
1770 | * message, rethrow the error */ | |
9fed9930 NC |
1771 | Perl_croak(aTHX_ "%sCompilation failed in require", |
1772 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1773 | } |
c5df3096 | 1774 | if (in_eval & EVAL_KEEPERR) { |
7ce09284 Z |
1775 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", |
1776 | SvPV_nolen_const(exceptsv)); | |
96d9b9cd Z |
1777 | } |
1778 | else { | |
1779 | sv_setsv(ERRSV, exceptsv); | |
1780 | } | |
8f89e5a9 Z |
1781 | PL_restartjmpenv = restartjmpenv; |
1782 | PL_restartop = restartop; | |
bb4c52e0 GG |
1783 | JMPENV_JUMP(3); |
1784 | /* NOTREACHED */ | |
a0d0e21e LW |
1785 | } |
1786 | } | |
87582a92 | 1787 | |
96d9b9cd | 1788 | write_to_stderr(exceptsv); |
f86702cc PP |
1789 | my_failure_exit(); |
1790 | /* NOTREACHED */ | |
a0d0e21e LW |
1791 | } |
1792 | ||
1793 | PP(pp_xor) | |
1794 | { | |
97aff369 | 1795 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1796 | if (SvTRUE(left) != SvTRUE(right)) |
1797 | RETSETYES; | |
1798 | else | |
1799 | RETSETNO; | |
1800 | } | |
1801 | ||
8dff4fc5 BM |
1802 | /* |
1803 | =for apidoc caller_cx | |
1804 | ||
1805 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1806 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1807 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1808 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1809 | immediately-surrounding Perl code. | |
1810 | ||
1811 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1812 | behalf of the debugger. If the stack frame requested was a sub called by | |
1813 | C<DB::sub>, the return value will be the frame for the call to | |
1814 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1815 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1816 | frame for the sub call itself. | |
1817 | ||
1818 | =cut | |
1819 | */ | |
1820 | ||
1821 | const PERL_CONTEXT * | |
1822 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1823 | { |
a0d0e21e | 1824 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1825 | register const PERL_CONTEXT *cx; |
1826 | register const PERL_CONTEXT *ccstack = cxstack; | |
1827 | const PERL_SI *top_si = PL_curstackinfo; | |
27d41816 | 1828 | |
a0d0e21e | 1829 | for (;;) { |
2c375eb9 GS |
1830 | /* we may be in a higher stacklevel, so dig down deeper */ |
1831 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1832 | top_si = top_si->si_prev; | |
1833 | ccstack = top_si->si_cxstack; | |
1834 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1835 | } | |
8dff4fc5 BM |
1836 | if (cxix < 0) |
1837 | return NULL; | |
f2a7f298 | 1838 | /* caller() should not report the automatic calls to &DB::sub */ |
1839 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1840 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1841 | count++; |
1842 | if (!count--) | |
1843 | break; | |
2c375eb9 | 1844 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1845 | } |
2c375eb9 GS |
1846 | |
1847 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1848 | if (dbcxp) *dbcxp = cx; |
1849 | ||
7766f137 | 1850 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1851 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1852 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1853 | field below is defined for any cx. */ |
f2a7f298 | 1854 | /* caller() should not report the automatic calls to &DB::sub */ |
1855 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1856 | cx = &ccstack[dbcxix]; |
06a5b730 PP |
1857 | } |
1858 | ||
8dff4fc5 BM |
1859 | return cx; |
1860 | } | |
1861 | ||
1862 | PP(pp_caller) | |
1863 | { | |
1864 | dVAR; | |
1865 | dSP; | |
1866 | register const PERL_CONTEXT *cx; | |
1867 | const PERL_CONTEXT *dbcx; | |
1868 | I32 gimme; | |
1869 | const char *stashname; | |
1870 | I32 count = 0; | |
1871 | ||
1872 | if (MAXARG) | |
1873 | count = POPi; | |
1874 | ||
1875 | cx = caller_cx(count, &dbcx); | |
1876 | if (!cx) { | |
1877 | if (GIMME != G_ARRAY) { | |
1878 | EXTEND(SP, 1); | |
1879 | RETPUSHUNDEF; | |
1880 | } | |
1881 | RETURN; | |
1882 | } | |
1883 | ||
ed094faf | 1884 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1885 | if (GIMME != G_ARRAY) { |
27d41816 | 1886 | EXTEND(SP, 1); |
ed094faf | 1887 | if (!stashname) |
3280af22 | 1888 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1889 | else { |
1890 | dTARGET; | |
ed094faf | 1891 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1892 | PUSHs(TARG); |
1893 | } | |
a0d0e21e LW |
1894 | RETURN; |
1895 | } | |
a0d0e21e | 1896 | |
b3ca2e83 | 1897 | EXTEND(SP, 11); |
27d41816 | 1898 | |
ed094faf | 1899 | if (!stashname) |
3280af22 | 1900 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1901 | else |
6e449a3a MHM |
1902 | mPUSHs(newSVpv(stashname, 0)); |
1903 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1904 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1905 | if (!MAXARG) |
1906 | RETURN; | |
7766f137 | 1907 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1908 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1909 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1910 | if (isGV(cvgv)) { |
561b68a9 | 1911 | SV * const sv = newSV(0); |
c445ea15 | 1912 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1913 | mPUSHs(sv); |
bf38a478 | 1914 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1915 | } |
1916 | else { | |
84bafc02 | 1917 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1918 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1919 | } |
a0d0e21e LW |
1920 | } |
1921 | else { | |
84bafc02 | 1922 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1923 | mPUSHi(0); |
a0d0e21e | 1924 | } |
54310121 PP |
1925 | gimme = (I32)cx->blk_gimme; |
1926 | if (gimme == G_VOID) | |
3280af22 | 1927 | PUSHs(&PL_sv_undef); |
54310121 | 1928 | else |
98625aca | 1929 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1930 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1931 | /* eval STRING */ |
85a64632 | 1932 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1933 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1934 | PUSHs(&PL_sv_no); |
0f79a09d | 1935 | } |
811a4de9 | 1936 | /* require */ |
0f79a09d | 1937 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1938 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1939 | PUSHs(&PL_sv_yes); |
06a5b730 | 1940 | } |
811a4de9 GS |
1941 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1942 | else { | |
1943 | PUSHs(&PL_sv_undef); | |
1944 | PUSHs(&PL_sv_undef); | |
1945 | } | |
4633a7c4 | 1946 | } |
a682de96 GS |
1947 | else { |
1948 | PUSHs(&PL_sv_undef); | |
1949 | PUSHs(&PL_sv_undef); | |
1950 | } | |
bafb2adc | 1951 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1952 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1953 | { |
66a1b24b AL |
1954 | AV * const ary = cx->blk_sub.argarray; |
1955 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1956 | |
5b235299 NC |
1957 | if (!PL_dbargs) |
1958 | Perl_init_dbargs(aTHX); | |
a0d0e21e | 1959 | |
3280af22 NIS |
1960 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1961 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1962 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1963 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1964 | } |
f3aa04c2 GS |
1965 | /* XXX only hints propagated via op_private are currently |
1966 | * visible (others are not easily accessible, since they | |
1967 | * use the global PL_hints) */ | |
6e449a3a | 1968 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1969 | { |
1970 | SV * mask ; | |
72dc9ed5 | 1971 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1972 | |
ac27b0f5 | 1973 | if (old_warnings == pWARN_NONE || |
114bafba | 1974 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1975 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1976 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1977 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1978 | /* Get the bit mask for $warnings::Bits{all}, because | |
1979 | * it could have been extended by warnings::register */ | |
1980 | SV **bits_all; | |
6673a63c | 1981 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1982 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1983 | mask = newSVsv(*bits_all); |
1984 | } | |
1985 | else { | |
1986 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1987 | } | |
1988 | } | |
e476b1b5 | 1989 | else |
72dc9ed5 | 1990 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1991 | mPUSHs(mask); |
e476b1b5 | 1992 | } |
b3ca2e83 | 1993 | |
c28fe1ec | 1994 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
20439bc7 | 1995 | sv_2mortal(newRV_noinc(MUTABLE_SV(cop_hints_2hv(cx->blk_oldcop, 0)))) |
b3ca2e83 | 1996 | : &PL_sv_undef); |
a0d0e21e LW |
1997 | RETURN; |
1998 | } | |
1999 | ||
a0d0e21e LW |
2000 | PP(pp_reset) |
2001 | { | |
97aff369 | 2002 | dVAR; |
39644a26 | 2003 | dSP; |
10edeb5d | 2004 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 2005 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 2006 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
2007 | RETURN; |
2008 | } | |
2009 | ||
dd2155a4 DM |
2010 | /* like pp_nextstate, but used instead when the debugger is active */ |
2011 | ||
a0d0e21e LW |
2012 | PP(pp_dbstate) |
2013 | { | |
27da23d5 | 2014 | dVAR; |
533c011a | 2015 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 2016 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 2017 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
2018 | FREETMPS; |
2019 | ||
f410a211 NC |
2020 | PERL_ASYNC_CHECK(); |
2021 | ||
5df8de69 DM |
2022 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
2023 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 2024 | { |
39644a26 | 2025 | dSP; |
c09156bb | 2026 | register PERL_CONTEXT *cx; |
f54cb97a | 2027 | const I32 gimme = G_ARRAY; |
eb160463 | 2028 | U8 hasargs; |
0bd48802 AL |
2029 | GV * const gv = PL_DBgv; |
2030 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 2031 | |
a0d0e21e | 2032 | if (!cv) |
cea2e8a9 | 2033 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 2034 | |
aea4f609 DM |
2035 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
2036 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 2037 | return NORMAL; |
748a9306 | 2038 | |
a57c6685 | 2039 | ENTER; |
4633a7c4 LW |
2040 | SAVETMPS; |
2041 | ||
3280af22 | 2042 | SAVEI32(PL_debug); |
55497cff | 2043 | SAVESTACK_POS(); |
3280af22 | 2044 | PL_debug = 0; |
748a9306 | 2045 | hasargs = 0; |
924508f0 | 2046 | SPAGAIN; |
748a9306 | 2047 | |
aed2304a | 2048 | if (CvISXSUB(cv)) { |
c127bd3a SF |
2049 | CvDEPTH(cv)++; |
2050 | PUSHMARK(SP); | |
2051 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
2052 | CvDEPTH(cv)--; | |
2053 | FREETMPS; | |
a57c6685 | 2054 | LEAVE; |
c127bd3a SF |
2055 | return NORMAL; |
2056 | } | |
2057 | else { | |
2058 | PUSHBLOCK(cx, CXt_SUB, SP); | |
2059 | PUSHSUB_DB(cx); | |
2060 | cx->blk_sub.retop = PL_op->op_next; | |
2061 | CvDEPTH(cv)++; | |
2062 | SAVECOMPPAD(); | |
2063 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
2064 | RETURNOP(CvSTART(cv)); | |
2065 | } | |
a0d0e21e LW |
2066 | } |
2067 | else | |
2068 | return NORMAL; | |
2069 | } | |
2070 | ||
a0d0e21e LW |
2071 | PP(pp_enteriter) |
2072 | { | |
27da23d5 | 2073 | dVAR; dSP; dMARK; |
c09156bb | 2074 | register PERL_CONTEXT *cx; |
f54cb97a | 2075 | const I32 gimme = GIMME_V; |
df530c37 | 2076 | void *itervar; /* location of the iteration variable */ |
840fe433 | 2077 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 2078 | |
d343c3ef | 2079 | ENTER_with_name("loop1"); |
4633a7c4 LW |
2080 | SAVETMPS; |
2081 | ||
aafca525 DM |
2082 | if (PL_op->op_targ) { /* "my" variable */ |
2083 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
2084 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
2085 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
2086 | SVs_PADSTALE, SVs_PADSTALE); | |
2087 | } | |
09edbca0 | 2088 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 2089 | #ifdef USE_ITHREADS |
df530c37 | 2090 | itervar = PL_comppad; |
89e00a7c | 2091 | #else |
aafca525 | 2092 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 2093 | #endif |
54b9620d | 2094 | } |
aafca525 | 2095 | else { /* symbol table variable */ |
159b6efe | 2096 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
2097 | SV** svp = &GvSV(gv); |
2098 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 2099 | *svp = newSV(0); |
df530c37 | 2100 | itervar = (void *)gv; |
54b9620d | 2101 | } |
4633a7c4 | 2102 | |
0d863452 RH |
2103 | if (PL_op->op_private & OPpITER_DEF) |
2104 | cxtype |= CXp_FOR_DEF; | |
2105 | ||
d343c3ef | 2106 | ENTER_with_name("loop2"); |
a0d0e21e | 2107 | |
7766f137 | 2108 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 2109 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 2110 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
2111 | SV *maybe_ary = POPs; |
2112 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 2113 | dPOPss; |
d01136d6 | 2114 | SV * const right = maybe_ary; |
984a4bea RD |
2115 | SvGETMAGIC(sv); |
2116 | SvGETMAGIC(right); | |
4fe3f0fa | 2117 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2118 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2119 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2120 | /* Make sure that no-one re-orders cop.h and breaks our | |
2121 | assumptions */ | |
2122 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
2123 | #ifdef NV_PRESERVES_UV |
2124 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
2125 | (SvNV(sv) > (NV)IV_MAX))) | |
2126 | || | |
2127 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
2128 | (SvNV(right) < (NV)IV_MIN)))) | |
2129 | #else | |
2130 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
2131 | || | |
2132 | ((SvNV(sv) > 0) && | |
2133 | ((SvUV(sv) > (UV)IV_MAX) || | |
2134 | (SvNV(sv) > (NV)UV_MAX))))) | |
2135 | || | |
2136 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
2137 | || | |
2138 | ((SvNV(right) > 0) && | |
2139 | ((SvUV(right) > (UV)IV_MAX) || | |
2140 | (SvNV(right) > (NV)UV_MAX)))))) | |
2141 | #endif | |
076d9a11 | 2142 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
2143 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
2144 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
2145 | #ifdef DEBUGGING |
2146 | /* for correct -Dstv display */ | |
2147 | cx->blk_oldsp = sp - PL_stack_base; | |
2148 | #endif | |
89ea2908 | 2149 | } |
3f63a782 | 2150 | else { |
d01136d6 BS |
2151 | cx->cx_type &= ~CXTYPEMASK; |
2152 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2153 | /* Make sure that no-one re-orders cop.h and breaks our | |
2154 | assumptions */ | |
2155 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2156 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2157 | cx->blk_loop.state_u.lazysv.end = right; | |
2158 | SvREFCNT_inc(right); | |
2159 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2160 | /* This will do the upgrade to SVt_PV, and warn if the value |
2161 | is uninitialised. */ | |
10516c54 | 2162 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2163 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2164 | to replace !SvOK() with a pointer to "". */ | |
2165 | if (!SvOK(right)) { | |
2166 | SvREFCNT_dec(right); | |
d01136d6 | 2167 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2168 | } |
3f63a782 | 2169 | } |
89ea2908 | 2170 | } |
d01136d6 | 2171 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2172 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2173 | SvREFCNT_inc(maybe_ary); |
2174 | cx->blk_loop.state_u.ary.ix = | |
2175 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2176 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2177 | -1; | |
ef3e5ea9 | 2178 | } |
89ea2908 | 2179 | } |
d01136d6 BS |
2180 | else { /* iterating over items on the stack */ |
2181 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2182 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2183 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2184 | } |
2185 | else { | |
d01136d6 | 2186 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2187 | } |
4633a7c4 | 2188 | } |
a0d0e21e LW |
2189 | |
2190 | RETURN; | |
2191 | } | |
2192 | ||
2193 | PP(pp_enterloop) | |
2194 | { | |
27da23d5 | 2195 | dVAR; dSP; |
c09156bb | 2196 | register PERL_CONTEXT *cx; |
f54cb97a | 2197 | const I32 gimme = GIMME_V; |
a0d0e21e | 2198 | |
d343c3ef | 2199 | ENTER_with_name("loop1"); |
a0d0e21e | 2200 | SAVETMPS; |
d343c3ef | 2201 | ENTER_with_name("loop2"); |
a0d0e21e | 2202 | |
3b719c58 NC |
2203 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2204 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2205 | |
2206 | RETURN; | |
2207 | } | |
2208 | ||
2209 | PP(pp_leaveloop) | |
2210 | { | |
27da23d5 | 2211 | dVAR; dSP; |
c09156bb | 2212 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2213 | I32 gimme; |
2214 | SV **newsp; | |
2215 | PMOP *newpm; | |
2216 | SV **mark; | |
2217 | ||
2218 | POPBLOCK(cx,newpm); | |
3b719c58 | 2219 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2220 | mark = newsp; |
a8bba7fa | 2221 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2222 | |
a1f49e72 | 2223 | TAINT_NOT; |
54310121 | 2224 | if (gimme == G_VOID) |
6f207bd3 | 2225 | NOOP; |
54310121 PP |
2226 | else if (gimme == G_SCALAR) { |
2227 | if (mark < SP) | |
2228 | *++newsp = sv_mortalcopy(*SP); | |
2229 | else | |
3280af22 | 2230 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2231 | } |
2232 | else { | |
a1f49e72 | 2233 | while (mark < SP) { |
a0d0e21e | 2234 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2235 | TAINT_NOT; /* Each item is independent */ |
2236 | } | |
a0d0e21e | 2237 | } |
f86702cc PP |
2238 | SP = newsp; |
2239 | PUTBACK; | |
2240 | ||
a8bba7fa | 2241 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2242 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2243 | |
d343c3ef GG |
2244 | LEAVE_with_name("loop2"); |
2245 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2246 | |
f86702cc | 2247 | return NORMAL; |
a0d0e21e LW |
2248 | } |
2249 | ||
2250 | PP(pp_return) | |
2251 | { | |
27da23d5 | 2252 | dVAR; dSP; dMARK; |
c09156bb | 2253 | register PERL_CONTEXT *cx; |
f86702cc | 2254 | bool popsub2 = FALSE; |
b45de488 | 2255 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2256 | I32 gimme; |
2257 | SV **newsp; | |
2258 | PMOP *newpm; | |
2259 | I32 optype = 0; | |
b6494f15 | 2260 | SV *namesv; |
b0d9ce38 | 2261 | SV *sv; |
b263a1ad | 2262 | OP *retop = NULL; |
a0d0e21e | 2263 | |
0bd48802 AL |
2264 | const I32 cxix = dopoptosub(cxstack_ix); |
2265 | ||
9850bf21 RH |
2266 | if (cxix < 0) { |
2267 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2268 | * sort block, which is a CXt_NULL | |
2269 | * not a CXt_SUB */ | |
2270 | dounwind(0); | |
d7507f74 RH |
2271 | PL_stack_base[1] = *PL_stack_sp; |
2272 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2273 | return 0; |
2274 | } | |
9850bf21 RH |
2275 | else |
2276 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2277 | } |
a0d0e21e LW |
2278 | if (cxix < cxstack_ix) |
2279 | dounwind(cxix); | |
2280 | ||
d7507f74 RH |
2281 | if (CxMULTICALL(&cxstack[cxix])) { |
2282 | gimme = cxstack[cxix].blk_gimme; | |
2283 | if (gimme == G_VOID) | |
2284 | PL_stack_sp = PL_stack_base; | |
2285 | else if (gimme == G_SCALAR) { | |
2286 | PL_stack_base[1] = *PL_stack_sp; | |
2287 | PL_stack_sp = PL_stack_base + 1; | |
2288 | } | |
9850bf21 | 2289 | return 0; |
d7507f74 | 2290 | } |
9850bf21 | 2291 | |
a0d0e21e | 2292 | POPBLOCK(cx,newpm); |
6b35e009 | 2293 | switch (CxTYPE(cx)) { |
a0d0e21e | 2294 | case CXt_SUB: |
f86702cc | 2295 | popsub2 = TRUE; |
f39bc417 | 2296 | retop = cx->blk_sub.retop; |
5dd42e15 | 2297 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2298 | break; |
2299 | case CXt_EVAL: | |
b45de488 GS |
2300 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2301 | clear_errsv = TRUE; | |
a0d0e21e | 2302 | POPEVAL(cx); |
b6494f15 | 2303 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2304 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2305 | if (CxTRYBLOCK(cx)) |
2306 | break; | |
748a9306 LW |
2307 | if (optype == OP_REQUIRE && |
2308 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2309 | { | |
54310121 | 2310 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
2311 | (void)hv_delete(GvHVn(PL_incgv), |
2312 | SvPVX_const(namesv), SvCUR(namesv), | |
2313 | G_DISCARD); | |
2314 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2315 | } |
a0d0e21e | 2316 | break; |
7766f137 GS |
2317 | case CXt_FORMAT: |
2318 | POPFORMAT(cx); | |
f39bc417 | 2319 | retop = cx->blk_sub.retop; |
7766f137 | 2320 | break; |
a0d0e21e | 2321 | default: |
cea2e8a9 | 2322 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2323 | } |
2324 | ||
a1f49e72 | 2325 | TAINT_NOT; |
a0d0e21e | 2326 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2327 | if (MARK < SP) { |
2328 | if (popsub2) { | |
a8bba7fa | 2329 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2330 | if (SvTEMP(TOPs)) { |
2331 | *++newsp = SvREFCNT_inc(*SP); | |
2332 | FREETMPS; | |
2333 | sv_2mortal(*newsp); | |
959e3673 GS |
2334 | } |
2335 | else { | |
2336 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2337 | FREETMPS; |
959e3673 GS |
2338 | *++newsp = sv_mortalcopy(sv); |
2339 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2340 | } |
959e3673 GS |
2341 | } |
2342 | else | |
a29cdaf0 | 2343 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2344 | } |
2345 | else | |
a29cdaf0 | 2346 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2347 | } |
2348 | else | |
3280af22 | 2349 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2350 | } |
54310121 | 2351 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2352 | while (++MARK <= SP) { |
f86702cc PP |
2353 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2354 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2355 | TAINT_NOT; /* Each item is independent */ |
2356 | } | |
a0d0e21e | 2357 | } |
3280af22 | 2358 | PL_stack_sp = newsp; |
a0d0e21e | 2359 | |
5dd42e15 | 2360 | LEAVE; |
f86702cc PP |
2361 | /* Stack values are safe: */ |
2362 | if (popsub2) { | |
5dd42e15 | 2363 | cxstack_ix--; |
b0d9ce38 | 2364 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2365 | } |
b0d9ce38 | 2366 | else |
c445ea15 | 2367 | sv = NULL; |
3280af22 | 2368 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2369 | |
b0d9ce38 | 2370 | LEAVESUB(sv); |
8433848b | 2371 | if (clear_errsv) { |
ab69dbc2 | 2372 | CLEAR_ERRSV(); |
8433848b | 2373 | } |
f39bc417 | 2374 | return retop; |
a0d0e21e LW |
2375 | } |
2376 | ||
2377 | PP(pp_last) | |
2378 | { | |
27da23d5 | 2379 | dVAR; dSP; |
a0d0e21e | 2380 | I32 cxix; |
c09156bb | 2381 | register PERL_CONTEXT *cx; |
f86702cc | 2382 | I32 pop2 = 0; |
a0d0e21e | 2383 | I32 gimme; |
8772537c | 2384 | I32 optype; |
b263a1ad | 2385 | OP *nextop = NULL; |
a0d0e21e LW |
2386 | SV **newsp; |
2387 | PMOP *newpm; | |
a8bba7fa | 2388 | SV **mark; |
c445ea15 | 2389 | SV *sv = NULL; |
9d4ba2ae | 2390 | |
a0d0e21e | 2391 | |
533c011a | 2392 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2393 | cxix = dopoptoloop(cxstack_ix); |
2394 | if (cxix < 0) | |
a651a37d | 2395 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2396 | } |
2397 | else { | |
2398 | cxix = dopoptolabel(cPVOP->op_pv); | |
2399 | if (cxix < 0) | |
cea2e8a9 | 2400 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2401 | } |
2402 | if (cxix < cxstack_ix) | |
2403 | dounwind(cxix); | |
2404 | ||
2405 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2406 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2407 | mark = newsp; |
6b35e009 | 2408 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2409 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2410 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2411 | case CXt_LOOP_FOR: |
2412 | case CXt_LOOP_PLAIN: | |
2413 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2414 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2415 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2416 | break; |
f86702cc | 2417 | case CXt_SUB: |
f86702cc | 2418 | pop2 = CXt_SUB; |
f39bc417 | 2419 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2420 | break; |
f86702cc PP |
2421 | case CXt_EVAL: |
2422 | POPEVAL(cx); | |
f39bc417 | 2423 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2424 | break; |
7766f137 GS |
2425 | case CXt_FORMAT: |
2426 | POPFORMAT(cx); | |
f39bc417 | 2427 | nextop = cx->blk_sub.retop; |
7766f137 | 2428 | break; |
a0d0e21e | 2429 | default: |
cea2e8a9 | 2430 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2431 | } |
2432 | ||
a1f49e72 | 2433 | TAINT_NOT; |
a0d0e21e | 2434 | if (gimme == G_SCALAR) { |
f86702cc PP |
2435 | if (MARK < SP) |
2436 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2437 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2438 | else |
3280af22 | 2439 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2440 | } |
54310121 | 2441 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2442 | while (++MARK <= SP) { |
f86702cc PP |
2443 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2444 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2445 | TAINT_NOT; /* Each item is independent */ |
2446 | } | |
f86702cc PP |
2447 | } |
2448 | SP = newsp; | |
2449 | PUTBACK; | |
2450 | ||
5dd42e15 DM |
2451 | LEAVE; |
2452 | cxstack_ix--; | |
f86702cc PP |
2453 | /* Stack values are safe: */ |
2454 | switch (pop2) { | |
c6fdafd0 | 2455 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2456 | case CXt_LOOP_PLAIN: |
d01136d6 | 2457 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2458 | case CXt_LOOP_FOR: |
a8bba7fa | 2459 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2460 | LEAVE; |
f86702cc PP |
2461 | break; |
2462 | case CXt_SUB: | |
b0d9ce38 | 2463 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2464 | break; |
a0d0e21e | 2465 | } |
3280af22 | 2466 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2467 | |
b0d9ce38 | 2468 | LEAVESUB(sv); |
9d4ba2ae AL |
2469 | PERL_UNUSED_VAR(optype); |
2470 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2471 | return nextop; |
a0d0e21e LW |
2472 | } |
2473 | ||
2474 | PP(pp_next) | |
2475 | { | |
27da23d5 | 2476 | dVAR; |
a0d0e21e | 2477 | I32 cxix; |
c09156bb | 2478 | register PERL_CONTEXT *cx; |
85538317 | 2479 | I32 inner; |
a0d0e21e | 2480 | |
533c011a | 2481 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2482 | cxix = dopoptoloop(cxstack_ix); |
2483 | if (cxix < 0) | |
a651a37d | 2484 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2485 | } |
2486 | else { | |
2487 | cxix = dopoptolabel(cPVOP->op_pv); | |
2488 | if (cxix < 0) | |
cea2e8a9 | 2489 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2490 | } |
2491 | if (cxix < cxstack_ix) | |
2492 | dounwind(cxix); | |
2493 | ||
85538317 GS |
2494 | /* clear off anything above the scope we're re-entering, but |
2495 | * save the rest until after a possible continue block */ | |
2496 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2497 | TOPBLOCK(cx); |
85538317 GS |
2498 | if (PL_scopestack_ix < inner) |
2499 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2500 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2501 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2502 | } |
2503 | ||
2504 | PP(pp_redo) | |
2505 | { | |
27da23d5 | 2506 | dVAR; |
a0d0e21e | 2507 | I32 cxix; |
c09156bb | 2508 | register PERL_CONTEXT *cx; |
a0d0e21e | 2509 | I32 oldsave; |
a034e688 | 2510 | OP* redo_op; |
a0d0e21e | 2511 | |
533c011a | 2512 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2513 | cxix = dopoptoloop(cxstack_ix); |
2514 | if (cxix < 0) | |
a651a37d | 2515 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2516 | } |
2517 | else { | |
2518 | cxix = dopoptolabel(cPVOP->op_pv); | |
2519 | if (cxix < 0) | |
cea2e8a9 | 2520 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2521 | } |
2522 | if (cxix < cxstack_ix) | |
2523 | dounwind(cxix); | |
2524 | ||
022eaa24 | 2525 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2526 | if (redo_op->op_type == OP_ENTER) { |
2527 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2528 | cxstack_ix++; | |
2529 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2530 | redo_op = redo_op->op_next; | |
2531 | } | |
2532 | ||
a0d0e21e | 2533 | TOPBLOCK(cx); |
3280af22 | 2534 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2535 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2536 | FREETMPS; |
3a1b2b9e | 2537 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2538 | return redo_op; |
a0d0e21e LW |
2539 | } |
2540 | ||
0824fdcb | 2541 | STATIC OP * |
bfed75c6 | 2542 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2543 | { |
97aff369 | 2544 | dVAR; |
a0d0e21e | 2545 | OP **ops = opstack; |
bfed75c6 | 2546 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2547 | |
7918f24d NC |
2548 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2549 | ||
fc36a67e | 2550 | if (ops >= oplimit) |
cea2e8a9 | 2551 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2552 | if (o->op_type == OP_LEAVE || |
2553 | o->op_type == OP_SCOPE || | |
2554 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2555 | o->op_type == OP_LEAVESUB || |
11343788 | 2556 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2557 | { |
5dc0d613 | 2558 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2559 | if (ops >= oplimit) |
cea2e8a9 | 2560 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2561 | } |
c4aa4e48 | 2562 | *ops = 0; |
11343788 | 2563 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2564 | OP *kid; |
a0d0e21e | 2565 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2566 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2567 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2568 | const char *kid_label = CopLABEL(kCOP); | |
2569 | if (kid_label && strEQ(kid_label, label)) | |
2570 | return kid; | |
2571 | } | |
a0d0e21e | 2572 | } |
11343788 | 2573 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2574 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2575 | continue; |
ed8d0fe2 SM |
2576 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2577 | if (ops == opstack) | |
2578 | *ops++ = kid; | |
2579 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2580 | ops[-1]->op_type == OP_DBSTATE) | |
2581 | ops[-1] = kid; | |
2582 | else | |
2583 | *ops++ = kid; | |
2584 | } | |
155aba94 | 2585 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2586 | return o; |
a0d0e21e LW |
2587 | } |
2588 | } | |
c4aa4e48 | 2589 | *ops = 0; |
a0d0e21e LW |
2590 | return 0; |
2591 | } | |
2592 | ||
a0d0e21e LW |
2593 | PP(pp_goto) |
2594 | { | |
27da23d5 | 2595 | dVAR; dSP; |
cbbf8932 | 2596 | OP *retop = NULL; |
a0d0e21e | 2597 | I32 ix; |
c09156bb | 2598 | register PERL_CONTEXT *cx; |
fc36a67e PP |
2599 | #define GOTO_DEPTH 64 |
2600 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2601 | const char *label = NULL; |
bfed75c6 AL |
2602 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2603 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2604 | |
533c011a | 2605 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2606 | SV * const sv = POPs; |
a0d0e21e LW |
2607 | |
2608 | /* This egregious kludge implements goto &subroutine */ | |
2609 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2610 | I32 cxix; | |
c09156bb | 2611 | register PERL_CONTEXT *cx; |
ea726b52 | 2612 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2613 | SV** mark; |
2614 | I32 items = 0; | |
2615 | I32 oldsave; | |
b1464ded | 2616 | bool reified = 0; |
a0d0e21e | 2617 | |
e8f7dd13 | 2618 | retry: |
4aa0a1f7 | 2619 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2620 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2621 | if (gv) { |
7fc63493 | 2622 | GV *autogv; |
e8f7dd13 GS |
2623 | SV *tmpstr; |
2624 | /* autoloaded stub? */ | |
2625 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2626 | goto retry; | |
2627 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2628 | GvNAMELEN(gv), FALSE); | |
2629 | if (autogv && (cv = GvCV(autogv))) | |
2630 | goto retry; | |
2631 | tmpstr = sv_newmortal(); | |
c445ea15 | 2632 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2633 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2634 | } |
cea2e8a9 | 2635 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2636 | } |
2637 | ||
a0d0e21e | 2638 | /* First do some returnish stuff. */ |
b37c2d43 | 2639 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2640 | FREETMPS; |
a0d0e21e LW |
2641 | cxix = dopoptosub(cxstack_ix); |
2642 | if (cxix < 0) | |
cea2e8a9 | 2643 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2644 | if (cxix < cxstack_ix) |
2645 | dounwind(cxix); | |
2646 | TOPBLOCK(cx); | |
2d43a17f | 2647 | SPAGAIN; |
564abe23 | 2648 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2649 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2650 | if (CxREALEVAL(cx)) |
2651 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2652 | else | |
2653 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2654 | } |
9850bf21 RH |
2655 | else if (CxMULTICALL(cx)) |
2656 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2657 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2658 | /* put @_ back onto stack */ |
a0d0e21e | 2659 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2660 | |
93965878 | 2661 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2662 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2663 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2664 | SvREFCNT_dec(GvAV(PL_defgv)); |
2665 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2666 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2667 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2668 | if (AvREAL(av)) { |
b1464ded DM |
2669 | reified = 1; |
2670 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2671 | av = newAV(); |
2672 | av_extend(av, items-1); | |
11ca45c0 | 2673 | AvREIFY_only(av); |
ad64d0ec | 2674 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2675 | } |
a0d0e21e | 2676 | } |
aed2304a | 2677 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2678 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2679 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2680 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2681 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2682 | } |
a45cdc79 DM |
2683 | mark = SP; |
2684 | SP += items; | |
6b35e009 | 2685 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2686 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2687 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2688 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2689 | LEAVE_SCOPE(oldsave); |
2690 | ||
2691 | /* Now do some callish stuff. */ | |
2692 | SAVETMPS; | |
5023d17a | 2693 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2694 | if (CvISXSUB(cv)) { |
b37c2d43 | 2695 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2696 | SV **newsp; |
2697 | I32 gimme; | |
b1464ded DM |
2698 | if (reified) { |
2699 | I32 index; | |
2700 | for (index=0; index<items; index++) | |
2701 | sv_2mortal(SP[-index]); | |
2702 | } | |
1fa4e549 | 2703 | |
b37c2d43 AL |
2704 | /* XS subs don't have a CxSUB, so pop it */ |
2705 | POPBLOCK(cx, PL_curpm); | |
2706 | /* Push a mark for the start of arglist */ | |
2707 | PUSHMARK(mark); | |
2708 | PUTBACK; | |
2709 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2710 | LEAVE; |
5eff7df7 | 2711 | return retop; |
a0d0e21e LW |
2712 | } |
2713 | else { | |
b37c2d43 | 2714 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2715 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2716 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2717 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2718 | cx->cx_type = CXt_SUB; |
b150fb22 | 2719 | } |
a0d0e21e | 2720 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2721 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2722 | |
a0d0e21e LW |
2723 | CvDEPTH(cv)++; |
2724 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2725 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2726 | else { |
2b9dff67 | 2727 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2728 | sub_crush_depth(cv); |
26019298 | 2729 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2730 | } |
fd617465 DM |
2731 | SAVECOMPPAD(); |
2732 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2733 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2734 | { |
502c6561 | 2735 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2736 | |
3280af22 | 2737 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2738 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2739 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2740 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2741 | |
2742 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2743 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2744 | if (AvARRAY(av) != ary) { |
2745 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2746 | AvARRAY(av) = ary; |
a0d0e21e LW |
2747 | } |
2748 | if (items >= AvMAX(av) + 1) { | |
2749 | AvMAX(av) = items - 1; | |
2750 | Renew(ary,items+1,SV*); | |
2751 | AvALLOC(av) = ary; | |
9c6bc640 | 2752 | AvARRAY(av) = ary; |
a0d0e21e LW |
2753 | } |
2754 | } | |
a45cdc79 | 2755 | ++mark; |
a0d0e21e | 2756 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2757 | AvFILLp(av) = items - 1; |
d8b46c1b | 2758 | assert(!AvREAL(av)); |
b1464ded DM |
2759 | if (reified) { |
2760 | /* transfer 'ownership' of refcnts to new @_ */ | |
2761 | AvREAL_on(av); | |
2762 | AvREIFY_off(av); | |
2763 | } | |
a0d0e21e LW |
2764 | while (items--) { |
2765 | if (*mark) | |
2766 | SvTEMP_off(*mark); | |
2767 | mark++; | |
2768 | } | |
2769 | } | |
491527d0 | 2770 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2771 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2772 | if (PERLDB_GOTO) { |
b96d8cd9 | 2773 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2774 | if (gotocv) { |
2775 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2776 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2777 | PL_stack_sp--; |
2778 | } | |
491527d0 | 2779 | } |
1ce6579f | 2780 | } |
a0d0e21e LW |
2781 | RETURNOP(CvSTART(cv)); |
2782 | } | |
2783 | } | |
1614b0e3 | 2784 | else { |
0510663f | 2785 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2786 | if (!(do_dump || *label)) |
cea2e8a9 | 2787 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2788 | } |
a0d0e21e | 2789 | } |
533c011a | 2790 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2791 | if (! do_dump) |
cea2e8a9 | 2792 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2793 | } |
2794 | else | |
2795 | label = cPVOP->op_pv; | |
2796 | ||
f410a211 NC |
2797 | PERL_ASYNC_CHECK(); |
2798 | ||
a0d0e21e | 2799 | if (label && *label) { |
cbbf8932 | 2800 | OP *gotoprobe = NULL; |
3b2447bc | 2801 | bool leaving_eval = FALSE; |
33d34e4c | 2802 | bool in_block = FALSE; |
cbbf8932 | 2803 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2804 | |
2805 | /* find label */ | |
2806 | ||
d4c19fe8 | 2807 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2808 | *enterops = 0; |
2809 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2810 | cx = &cxstack[ix]; | |
6b35e009 | 2811 | switch (CxTYPE(cx)) { |
a0d0e21e | 2812 | case CXt_EVAL: |
3b2447bc | 2813 | leaving_eval = TRUE; |
971ecbe6 | 2814 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2815 | gotoprobe = (last_eval_cx ? |
2816 | last_eval_cx->blk_eval.old_eval_root : | |
2817 | PL_eval_root); | |
2818 | last_eval_cx = cx; | |
9c5794fe RH |
2819 | break; |
2820 | } | |
2821 | /* else fall through */ | |
c6fdafd0 | 2822 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2823 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2824 | case CXt_LOOP_FOR: |
2825 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2826 | case CXt_GIVEN: |
2827 | case CXt_WHEN: | |
a0d0e21e LW |
2828 | gotoprobe = cx->blk_oldcop->op_sibling; |
2829 | break; | |
2830 | case CXt_SUBST: | |
2831 | continue; | |
2832 | case CXt_BLOCK: | |
33d34e4c | 2833 | if (ix) { |
a0d0e21e | 2834 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2835 | in_block = TRUE; |
2836 | } else | |
3280af22 | 2837 | gotoprobe = PL_main_root; |
a0d0e21e | 2838 | break; |
b3933176 | 2839 | case CXt_SUB: |
9850bf21 | 2840 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2841 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2842 | break; | |
2843 | } | |
2844 | /* FALL THROUGH */ | |
7766f137 | 2845 | case CXt_FORMAT: |
0a753a76 | 2846 | case CXt_NULL: |
a651a37d | 2847 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2848 | default: |
2849 | if (ix) | |
cea2e8a9 | 2850 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2851 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2852 | break; |
2853 | } | |
2b597662 GS |
2854 | if (gotoprobe) { |
2855 | retop = dofindlabel(gotoprobe, label, | |
2856 | enterops, enterops + GOTO_DEPTH); | |
2857 | if (retop) | |
2858 | break; | |
eae48c89 Z |
2859 | if (gotoprobe->op_sibling && |
2860 | gotoprobe->op_sibling->op_type == OP_UNSTACK && | |
2861 | gotoprobe->op_sibling->op_sibling) { | |
2862 | retop = dofindlabel(gotoprobe->op_sibling->op_sibling, | |
2863 | label, enterops, enterops + GOTO_DEPTH); | |
2864 | if (retop) | |
2865 | break; | |
2866 | } | |
2b597662 | 2867 | } |
3280af22 | 2868 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2869 | } |
2870 | if (!retop) | |
cea2e8a9 | 2871 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2872 | |
3b2447bc RH |
2873 | /* if we're leaving an eval, check before we pop any frames |
2874 | that we're not going to punt, otherwise the error | |
2875 | won't be caught */ | |
2876 | ||
2877 | if (leaving_eval && *enterops && enterops[1]) { | |
2878 | I32 i; | |
2879 | for (i = 1; enterops[i]; i++) | |
2880 | if (enterops[i]->op_type == OP_ENTERITER) | |
2881 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2882 | } | |
2883 | ||
b500e03b GG |
2884 | if (*enterops && enterops[1]) { |
2885 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2886 | if (enterops[i]) | |
2887 | deprecate("\"goto\" to jump into a construct"); | |
2888 | } | |
2889 | ||
a0d0e21e LW |
2890 | /* pop unwanted frames */ |
2891 | ||
2892 | if (ix < cxstack_ix) { | |
2893 | I32 oldsave; | |
2894 | ||
2895 | if (ix < 0) | |
2896 | ix = 0; | |
2897 | dounwind(ix); | |
2898 | TOPBLOCK(cx); | |
3280af22 | 2899 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2900 | LEAVE_SCOPE(oldsave); |
2901 | } | |
2902 | ||
2903 | /* push wanted frames */ | |
2904 | ||
748a9306 | 2905 | if (*enterops && enterops[1]) { |
0bd48802 | 2906 | OP * const oldop = PL_op; |
33d34e4c AE |
2907 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2908 | for (; enterops[ix]; ix++) { | |
533c011a | 2909 | PL_op = enterops[ix]; |
84902520 TB |
2910 | /* Eventually we may want to stack the needed arguments |
2911 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2912 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2913 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 2914 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 2915 | } |
533c011a | 2916 | PL_op = oldop; |
a0d0e21e LW |
2917 | } |
2918 | } | |
2919 | ||
2920 | if (do_dump) { | |
a5f75d66 | 2921 | #ifdef VMS |
6b88bc9c | 2922 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2923 | #endif |
3280af22 NIS |
2924 | PL_restartop = retop; |
2925 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2926 | |
2927 | my_unexec(); | |
2928 | ||
3280af22 NIS |
2929 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2930 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2931 | } |
2932 | ||
2933 | RETURNOP(retop); | |
2934 | } | |
2935 | ||
2936 | PP(pp_exit) | |
2937 | { | |
97aff369 | 2938 | dVAR; |
39644a26 | 2939 | dSP; |
a0d0e21e LW |
2940 | I32 anum; |
2941 | ||
2942 | if (MAXARG < 1) | |
2943 | anum = 0; | |
ff0cee69 | 2944 | else { |
a0d0e21e | 2945 | anum = SvIVx(POPs); |
d98f61e7 GS |
2946 | #ifdef VMS |
2947 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2948 | anum = 0; |
96e176bf | 2949 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 PP |
2950 | #endif |
2951 | } | |
cc3604b1 | 2952 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2953 | #ifdef PERL_MAD |
2954 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2955 | if (anum || !(PL_minus_c && PL_madskills)) | |
2956 | my_exit(anum); | |
2957 | #else | |
a0d0e21e | 2958 | my_exit(anum); |
81d86705 | 2959 | #endif |
3280af22 | 2960 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2961 | RETURN; |
2962 | } | |
2963 | ||
a0d0e21e LW |
2964 | /* Eval. */ |
2965 | ||
0824fdcb | 2966 | STATIC void |
cea2e8a9 | 2967 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2968 | { |
504618e9 | 2969 | const char *s = SvPVX_const(sv); |
890ce7af | 2970 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2971 | I32 line = 1; |
a0d0e21e | 2972 | |
7918f24d NC |
2973 | PERL_ARGS_ASSERT_SAVE_LINES; |
2974 | ||
a0d0e21e | 2975 | while (s && s < send) { |
f54cb97a | 2976 | const char *t; |
b9f83d2f | 2977 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2978 | |
1d963ff3 | 2979 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2980 | if (t) |
2981 | t++; | |
2982 | else | |
2983 | t = send; | |
2984 | ||
2985 | sv_setpvn(tmpstr, s, t - s); | |
2986 | av_store(array, line++, tmpstr); | |
2987 | s = t; | |
2988 | } | |
2989 | } | |
2990 | ||
22f16304 RU |
2991 | /* |
2992 | =for apidoc docatch | |
2993 | ||
2994 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
2995 | ||
2996 | 0 is used as continue inside eval, | |
2997 | ||
2998 | 3 is used for a die caught by an inner eval - continue inner loop | |
2999 | ||
3000 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
3001 | establish a local jmpenv to handle exception traps. | |
3002 | ||
3003 | =cut | |
3004 | */ | |
0824fdcb | 3005 | STATIC OP * |
cea2e8a9 | 3006 | S_docatch(pTHX_ OP *o) |
1e422769 | 3007 | { |
97aff369 | 3008 | dVAR; |
6224f72b | 3009 | int ret; |
06b5626a | 3010 | OP * const oldop = PL_op; |
db36c5a1 | 3011 | dJMPENV; |
1e422769 | 3012 | |
1e422769 | 3013 | #ifdef DEBUGGING |
54310121 | 3014 | assert(CATCH_GET == TRUE); |
1e422769 | 3015 | #endif |
312caa8e | 3016 | PL_op = o; |
8bffa5f8 | 3017 | |
14dd3ad8 | 3018 | JMPENV_PUSH(ret); |
6224f72b | 3019 | switch (ret) { |
312caa8e | 3020 | case 0: |
abd70938 DM |
3021 | assert(cxstack_ix >= 0); |
3022 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3023 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 3024 | redo_body: |
85aaa934 | 3025 | CALLRUNOPS(aTHX); |
312caa8e CS |
3026 | break; |
3027 | case 3: | |
8bffa5f8 | 3028 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
3029 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
3030 | PL_restartjmpenv = NULL; | |
312caa8e CS |
3031 | PL_op = PL_restartop; |
3032 | PL_restartop = 0; | |
3033 | goto redo_body; | |
3034 | } | |
3035 | /* FALL THROUGH */ | |
3036 | default: | |
14dd3ad8 | 3037 | JMPENV_POP; |
533c011a | 3038 | PL_op = oldop; |
6224f72b | 3039 | JMPENV_JUMP(ret); |
1e422769 | 3040 | /* NOTREACHED */ |
1e422769 | 3041 | } |
14dd3ad8 | 3042 | JMPENV_POP; |
533c011a | 3043 | PL_op = oldop; |
5f66b61c | 3044 | return NULL; |
1e422769 PP |
3045 | } |
3046 | ||
ee23ad3b NC |
3047 | /* James Bond: Do you expect me to talk? |
3048 | Auric Goldfinger: No, Mr. Bond. I expect you to die. | |
3049 | ||
3050 | This code is an ugly hack, doesn't work with lexicals in subroutines that are | |
3051 | called more than once, and is only used by regcomp.c, for (?{}) blocks. | |
3052 | ||
3053 | Currently it is not used outside the core code. Best if it stays that way. | |
d59a8b3e NC |
3054 | |
3055 | Hence it's now deprecated, and will be removed. | |
ee23ad3b | 3056 | */ |
c277df42 | 3057 | OP * |
bfed75c6 | 3058 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
3059 | /* sv Text to convert to OP tree. */ |
3060 | /* startop op_free() this to undo. */ | |
3061 | /* code Short string id of the caller. */ | |
3062 | { | |
d59a8b3e NC |
3063 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
3064 | return Perl_sv_compile_2op_is_broken(aTHX_ sv, startop, code, padp); | |
3065 | } | |
3066 | ||
3067 | /* Don't use this. It will go away without warning once the regexp engine is | |
3068 | refactored not to use it. */ | |
3069 | OP * | |
3070 | Perl_sv_compile_2op_is_broken(pTHX_ SV *sv, OP **startop, const char *code, | |
3071 | PAD **padp) | |
3072 | { | |
27da23d5 | 3073 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
3074 | PERL_CONTEXT *cx; |
3075 | SV **newsp; | |
b094c71d | 3076 | I32 gimme = G_VOID; |
c277df42 IZ |
3077 | I32 optype; |
3078 | OP dummy; | |
83ee9e09 GS |
3079 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
3080 | char *tmpbuf = tbuf; | |
c277df42 | 3081 | char *safestr; |
a3985cdc | 3082 | int runtime; |
601f1833 | 3083 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 3084 | STRLEN len; |
634d6919 | 3085 | bool need_catch; |
c277df42 | 3086 | |
d59a8b3e | 3087 | PERL_ARGS_ASSERT_SV_COMPILE_2OP_IS_BROKEN; |
7918f24d | 3088 | |
d343c3ef | 3089 | ENTER_with_name("eval"); |
27fcb6ee | 3090 | lex_start(sv, NULL, LEX_START_SAME_FILTER); |
c277df42 IZ |
3091 | SAVETMPS; |
3092 | /* switch to eval mode */ | |
3093 | ||
923e4eb5 | 3094 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 3095 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 3096 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 3097 | } |
83ee9e09 | 3098 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 3099 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
3100 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
3101 | code, (unsigned long)++PL_evalseq, | |
3102 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
3103 | tmpbuf = SvPVX(sv); | |
fc009855 | 3104 | len = SvCUR(sv); |
83ee9e09 GS |
3105 | } |
3106 | else | |
d9fad198 JH |
3107 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
3108 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 3109 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3110 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3111 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3112 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
3113 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3114 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3115 | (i.e. before run-time proper). To work around the coredump that | |
3116 | ensues, we always turn GvMULTI_on for any globals that were | |
3117 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3118 | safestr = savepvn(tmpbuf, len); |
3119 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3120 | SAVEHINTS(); |
d1ca3daa | 3121 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3122 | PL_opsave = op; |
d1ca3daa | 3123 | #else |
7766f137 | 3124 | SAVEVPTR(PL_op); |
d1ca3daa | 3125 | #endif |
c277df42 | 3126 | |
a3985cdc | 3127 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 3128 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 3129 | if (runtime) |
558b4424 | 3130 | { |
d819b83a | 3131 | runcv = find_runcv(NULL); |
a3985cdc | 3132 | |
558b4424 FC |
3133 | /* At run time, we have to fetch the hints from PL_curcop. */ |
3134 | PL_hints = PL_curcop->cop_hints; | |
3135 | if (PL_hints & HINT_LOCALIZE_HH) { | |
3136 | /* SAVEHINTS created a new HV in PL_hintgv, which we | |
3137 | need to GC */ | |
3138 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
3139 | GvHV(PL_hintgv) = | |
3140 | refcounted_he_chain_2hv(PL_curcop->cop_hints_hash, 0); | |
3141 | hv_magic(GvHV(PL_hintgv), NULL, PERL_MAGIC_hints); | |
3142 | } | |
3143 | SAVECOMPILEWARNINGS(); | |
3144 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); | |
3145 | cophh_free(CopHINTHASH_get(&PL_compiling)); | |
3146 | /* XXX Does this need to avoid copying a label? */ | |
3147 | PL_compiling.cop_hints_hash | |
3148 | = cophh_copy(PL_curcop->cop_hints_hash); | |
3149 | } | |
3150 | ||
533c011a | 3151 | PL_op = &dummy; |
13b51b79 | 3152 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 3153 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 3154 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 3155 | PUSHEVAL(cx, 0); |
634d6919 GG |
3156 | need_catch = CATCH_GET; |
3157 | CATCH_SET(TRUE); | |
a3985cdc DM |
3158 | |
3159 | if (runtime) | |
410be5db | 3160 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 3161 | else |
410be5db | 3162 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
634d6919 | 3163 | CATCH_SET(need_catch); |
13b51b79 | 3164 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 3165 | POPEVAL(cx); |
c277df42 IZ |
3166 | |
3167 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 3168 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
f3548bdc | 3169 | /* XXX DAPM do this properly one year */ |
502c6561 | 3170 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 3171 | LEAVE_with_name("eval"); |
923e4eb5 | 3172 | if (IN_PERL_COMPILETIME) |
623e6609 | 3173 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 3174 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3175 | op = PL_opsave; |
d1ca3daa | 3176 | #endif |
9d4ba2ae AL |
3177 | PERL_UNUSED_VAR(newsp); |
3178 | PERL_UNUSED_VAR(optype); | |
3179 | ||
410be5db | 3180 | return PL_eval_start; |
c277df42 IZ |
3181 | } |
3182 | ||
a3985cdc DM |
3183 | |
3184 | /* | |
3185 | =for apidoc find_runcv | |
3186 | ||
3187 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3188 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3189 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3190 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3191 | than in the scope of the debugger itself). |
a3985cdc DM |
3192 | |
3193 | =cut | |
3194 | */ | |
3195 | ||
3196 | CV* | |
d819b83a | 3197 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3198 | { |
97aff369 | 3199 | dVAR; |
a3985cdc | 3200 | PERL_SI *si; |
a3985cdc | 3201 | |
d819b83a DM |
3202 | if (db_seqp) |
3203 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3204 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3205 | I32 ix; |
a3985cdc | 3206 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3207 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3208 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3209 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3210 | /* skip DB:: code */ |
3211 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3212 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3213 | continue; | |
3214 | } | |
3215 | return cv; | |
3216 | } | |
a3985cdc DM |
3217 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3218 | return PL_compcv; | |
3219 | } | |
3220 | } | |
3221 | return PL_main_cv; | |
3222 | } | |
3223 | ||
3224 | ||
27e90453 DM |
3225 | /* Run yyparse() in a setjmp wrapper. Returns: |
3226 | * 0: yyparse() successful | |
3227 | * 1: yyparse() failed | |
3228 | * 3: yyparse() died | |
3229 | */ | |
3230 | STATIC int | |
28ac2b49 | 3231 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3232 | { |
3233 | int ret; | |
3234 | dJMPENV; | |
3235 | ||
3236 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3237 | JMPENV_PUSH(ret); | |
3238 | switch (ret) { | |
3239 | case 0: | |
28ac2b49 | 3240 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3241 | break; |
3242 | case 3: | |
3243 | break; | |
3244 | default: | |
3245 | JMPENV_POP; | |
3246 | JMPENV_JUMP(ret); | |
3247 | /* NOTREACHED */ | |
3248 | } | |
3249 | JMPENV_POP; | |
3250 | return ret; | |
3251 | } | |
3252 | ||
3253 | ||
a3985cdc DM |
3254 | /* Compile a require/do, an eval '', or a /(?{...})/. |
3255 | * In the last case, startop is non-null, and contains the address of | |
3256 | * a pointer that should be set to the just-compiled code. | |
3257 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3258 | * Returns a bool indicating whether the compile was successful; if so, |
3259 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3260 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3261 | */ |
3262 | ||
410be5db | 3263 | STATIC bool |
a3985cdc | 3264 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3265 | { |
27da23d5 | 3266 | dVAR; dSP; |
46c461b5 | 3267 | OP * const saveop = PL_op; |
27e90453 DM |
3268 | bool in_require = (saveop && saveop->op_type == OP_REQUIRE); |
3269 | int yystatus; | |
a0d0e21e | 3270 | |
27e90453 | 3271 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3272 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3273 | : EVAL_INEVAL); | |
a0d0e21e | 3274 | |
1ce6579f PP |
3275 | PUSHMARK(SP); |
3276 | ||
3280af22 | 3277 | SAVESPTR(PL_compcv); |
ea726b52 | 3278 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3279 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3280 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3281 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3282 | ||
a3985cdc | 3283 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3284 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3285 | |
dd2155a4 | 3286 | /* set up a scratch pad */ |
a0d0e21e | 3287 | |
dd2155a4 | 3288 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3289 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3290 | |
07055b4c | 3291 | |
81d86705 NC |
3292 | if (!PL_madskills) |
3293 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3294 | |
a0d0e21e LW |
3295 | /* make sure we compile in the right package */ |
3296 | ||
ed094faf | 3297 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3298 | SAVESPTR(PL_curstash); |
ed094faf | 3299 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3300 | } |
3c10abe3 | 3301 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3302 | SAVESPTR(PL_beginav); |
3303 | PL_beginav = newAV(); | |
3304 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3305 | SAVESPTR(PL_unitcheckav); |
3306 | PL_unitcheckav = newAV(); | |
3307 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3308 | |
81d86705 | 3309 | #ifdef PERL_MAD |
9da243ce | 3310 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3311 | PL_madskills = 0; |
3312 | #endif | |
3313 | ||
a0d0e21e LW |
3314 | /* try to compile it */ |
3315 | ||
5f66b61c | 3316 | PL_eval_root = NULL; |
3280af22 | 3317 | PL_curcop = &PL_compiling; |
fc15ae8f | 3318 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3319 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3320 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3321 | else |
3322 | CLEAR_ERRSV(); | |
27e90453 | 3323 | |
a88d97bf | 3324 | CALL_BLOCK_HOOKS(bhk_eval, saveop); |
52db365a | 3325 | |
27e90453 DM |
3326 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3327 | * so honour CATCH_GET and trap it here if necessary */ | |
3328 | ||
28ac2b49 | 3329 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3330 | |
3331 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3332 | SV **newsp; /* Used by POPBLOCK. */ |
b6494f15 | 3333 | PERL_CONTEXT *cx = NULL; |
27e90453 | 3334 | I32 optype; /* Used by POPEVAL. */ |
b6494f15 | 3335 | SV *namesv = NULL; |
9d4ba2ae | 3336 | const char *msg; |
bfed75c6 | 3337 | |
27e90453 DM |
3338 | PERL_UNUSED_VAR(newsp); |
3339 | PERL_UNUSED_VAR(optype); | |
3340 | ||
c86ffc32 DM |
3341 | /* note that if yystatus == 3, then the EVAL CX block has already |
3342 | * been popped, and various vars restored */ | |
533c011a | 3343 | PL_op = saveop; |
27e90453 | 3344 | if (yystatus != 3) { |
c86ffc32 DM |
3345 | if (PL_eval_root) { |
3346 | op_free(PL_eval_root); | |
3347 | PL_eval_root = NULL; | |
3348 | } | |
27e90453 DM |
3349 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
3350 | if (!startop) { | |
3351 | POPBLOCK(cx,PL_curpm); | |
3352 | POPEVAL(cx); | |
b6494f15 | 3353 | namesv = cx->blk_eval.old_namesv; |
27e90453 | 3354 | } |
c277df42 | 3355 | } |
27e90453 DM |
3356 | if (yystatus != 3) |
3357 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ | |
9d4ba2ae AL |
3358 | |
3359 | msg = SvPVx_nolen_const(ERRSV); | |
27e90453 | 3360 | if (in_require) { |
b6494f15 VP |
3361 | if (!cx) { |
3362 | /* If cx is still NULL, it means that we didn't go in the | |
3363 | * POPEVAL branch. */ | |
3364 | cx = &cxstack[cxstack_ix]; | |
3365 | assert(CxTYPE(cx) == CXt_EVAL); | |
3366 | namesv = cx->blk_eval.old_namesv; | |
3367 | } | |
3368 | (void)hv_store(GvHVn(PL_incgv), | |
3369 | SvPVX_const(namesv), SvCUR(namesv), | |
3370 | &PL_sv_undef, 0); | |
58d3fd3b SH |
3371 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3372 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3373 | } |
3374 | else if (startop) { | |
27e90453 DM |
3375 | if (yystatus != 3) { |
3376 | POPBLOCK(cx,PL_curpm); | |
3377 | POPEVAL(cx); | |
3378 | } | |
5a844595 GS |
3379 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3380 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3381 | } |
9d7f88dd | 3382 | else { |
9d7f88dd | 3383 | if (!*msg) { |
6502358f | 3384 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3385 | } |
3386 | } | |
410be5db DM |
3387 | PUSHs(&PL_sv_undef); |
3388 | PUTBACK; | |
3389 | return FALSE; | |
a0d0e21e | 3390 | } |
57843af0 | 3391 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3392 | if (startop) { |
3280af22 | 3393 | *startop = PL_eval_root; |
c277df42 | 3394 | } else |
3280af22 | 3395 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3396 | |
3397 | /* Set the context for this new optree. | |
021f53de GG |
3398 | * Propagate the context from the eval(). */ |
3399 | if ((gimme & G_WANT) == G_VOID) | |
3280af22 | 3400 | scalarvoid(PL_eval_root); |
7df0357e | 3401 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3402 | list(PL_eval_root); |
a0d0e21e | 3403 | else |
3280af22 | 3404 | scalar(PL_eval_root); |
a0d0e21e LW |
3405 | |
3406 | DEBUG_x(dump_eval()); | |
3407 | ||
55497cff | 3408 | /* Register with debugger: */ |
6482a30d | 3409 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3410 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff PP |
3411 | if (cv) { |
3412 | dSP; | |
924508f0 | 3413 | PUSHMARK(SP); |
ad64d0ec | 3414 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3415 | PUTBACK; |
ad64d0ec | 3416 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff PP |
3417 | } |
3418 | } | |
3419 | ||
8ed49485 FC |
3420 | if (PL_unitcheckav) { |
3421 | OP *es = PL_eval_start; | |
3c10abe3 | 3422 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3423 | PL_eval_start = es; |
3424 | } | |
3c10abe3 | 3425 | |
a0d0e21e LW |
3426 | /* compiled okay, so do it */ |
3427 | ||
3280af22 NIS |
3428 | CvDEPTH(PL_compcv) = 1; |
3429 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3430 | PL_op = saveop; /* The caller may need it. */ |