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 | 56 | switch (cxstack[cxix].blk_gimme) { |
57 | case G_ARRAY: | |
a0d0e21e | 58 | RETPUSHYES; |
54310121 | 59 | case G_SCALAR: |
a0d0e21e | 60 | RETPUSHNO; |
54310121 | 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 | 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 | 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 | 466 | } |
467 | } | |
468 | ||
9c105995 NC |
469 | static void |
470 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 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 | 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 | 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 | 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 | 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; |
cbbf8932 | 550 | OP * parseres = NULL; |
bfed75c6 | 551 | const char *fmt; |
a0d0e21e | 552 | |
76e3520e | 553 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
554 | if (SvREADONLY(tmpForm)) { |
555 | SvREADONLY_off(tmpForm); | |
a1b95068 | 556 | parseres = doparseform(tmpForm); |
445b3f51 GS |
557 | SvREADONLY_on(tmpForm); |
558 | } | |
559 | else | |
a1b95068 WL |
560 | parseres = doparseform(tmpForm); |
561 | if (parseres) | |
562 | return parseres; | |
a0d0e21e | 563 | } |
3280af22 | 564 | SvPV_force(PL_formtarget, len); |
125b9982 NT |
565 | if (SvTAINTED(tmpForm)) |
566 | SvTAINTED_on(PL_formtarget); | |
1bd51a4c IH |
567 | if (DO_UTF8(PL_formtarget)) |
568 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 569 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 570 | t += len; |
245d4a47 | 571 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 572 | /* need to jump to the next word */ |
245d4a47 | 573 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
574 | |
575 | for (;;) { | |
576 | DEBUG_f( { | |
bfed75c6 | 577 | const char *name = "???"; |
a0d0e21e LW |
578 | arg = -1; |
579 | switch (*fpc) { | |
580 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
581 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
582 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
583 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
584 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
585 | ||
586 | case FF_CHECKNL: name = "CHECKNL"; break; | |
587 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
588 | case FF_SPACE: name = "SPACE"; break; | |
589 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
590 | case FF_ITEM: name = "ITEM"; break; | |
591 | case FF_CHOP: name = "CHOP"; break; | |
592 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
593 | case FF_NEWLINE: name = "NEWLINE"; break; | |
594 | case FF_MORE: name = "MORE"; break; | |
595 | case FF_LINEMARK: name = "LINEMARK"; break; | |
596 | case FF_END: name = "END"; break; | |
bfed75c6 | 597 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 598 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
599 | } |
600 | if (arg >= 0) | |
bf49b057 | 601 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 602 | else |
bf49b057 | 603 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 604 | } ); |
a0d0e21e LW |
605 | switch (*fpc++) { |
606 | case FF_LINEMARK: | |
607 | linemark = t; | |
a0d0e21e LW |
608 | lines++; |
609 | gotsome = FALSE; | |
610 | break; | |
611 | ||
612 | case FF_LITERAL: | |
613 | arg = *fpc++; | |
1bd51a4c | 614 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 615 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
616 | *t = '\0'; |
617 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
618 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 619 | f += arg; |
1bd51a4c IH |
620 | break; |
621 | } | |
622 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 623 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 624 | *t = '\0'; |
7bf79863 | 625 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
626 | t = SvEND(PL_formtarget); |
627 | targ_is_utf8 = TRUE; | |
628 | } | |
a0d0e21e LW |
629 | while (arg--) |
630 | *t++ = *f++; | |
631 | break; | |
632 | ||
633 | case FF_SKIP: | |
634 | f += *fpc++; | |
635 | break; | |
636 | ||
637 | case FF_FETCH: | |
638 | arg = *fpc++; | |
639 | f += arg; | |
640 | fieldsize = arg; | |
641 | ||
642 | if (MARK < SP) | |
643 | sv = *++MARK; | |
644 | else { | |
3280af22 | 645 | sv = &PL_sv_no; |
a2a5de95 | 646 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e | 647 | } |
125b9982 NT |
648 | if (SvTAINTED(sv)) |
649 | SvTAINTED_on(PL_formtarget); | |
a0d0e21e LW |
650 | break; |
651 | ||
652 | case FF_CHECKNL: | |
5a34cab7 NC |
653 | { |
654 | const char *send; | |
655 | const char *s = item = SvPV_const(sv, len); | |
656 | itemsize = len; | |
657 | if (DO_UTF8(sv)) { | |
658 | itemsize = sv_len_utf8(sv); | |
659 | if (itemsize != (I32)len) { | |
660 | I32 itembytes; | |
661 | if (itemsize > fieldsize) { | |
662 | itemsize = fieldsize; | |
663 | itembytes = itemsize; | |
664 | sv_pos_u2b(sv, &itembytes, 0); | |
665 | } | |
666 | else | |
667 | itembytes = len; | |
668 | send = chophere = s + itembytes; | |
669 | while (s < send) { | |
670 | if (*s & ~31) | |
671 | gotsome = TRUE; | |
672 | else if (*s == '\n') | |
673 | break; | |
674 | s++; | |
675 | } | |
676 | item_is_utf8 = TRUE; | |
677 | itemsize = s - item; | |
678 | sv_pos_b2u(sv, &itemsize); | |
679 | break; | |
a0ed51b3 | 680 | } |
a0ed51b3 | 681 | } |
5a34cab7 NC |
682 | item_is_utf8 = FALSE; |
683 | if (itemsize > fieldsize) | |
684 | itemsize = fieldsize; | |
685 | send = chophere = s + itemsize; | |
686 | while (s < send) { | |
687 | if (*s & ~31) | |
688 | gotsome = TRUE; | |
689 | else if (*s == '\n') | |
690 | break; | |
691 | s++; | |
692 | } | |
693 | itemsize = s - item; | |
694 | break; | |
a0ed51b3 | 695 | } |
a0d0e21e LW |
696 | |
697 | case FF_CHECKCHOP: | |
5a34cab7 NC |
698 | { |
699 | const char *s = item = SvPV_const(sv, len); | |
700 | itemsize = len; | |
701 | if (DO_UTF8(sv)) { | |
702 | itemsize = sv_len_utf8(sv); | |
703 | if (itemsize != (I32)len) { | |
704 | I32 itembytes; | |
705 | if (itemsize <= fieldsize) { | |
706 | const char *send = chophere = s + itemsize; | |
707 | while (s < send) { | |
708 | if (*s == '\r') { | |
709 | itemsize = s - item; | |
a0ed51b3 | 710 | chophere = s; |
a0ed51b3 | 711 | break; |
5a34cab7 NC |
712 | } |
713 | if (*s++ & ~31) | |
a0ed51b3 | 714 | gotsome = TRUE; |
a0ed51b3 | 715 | } |
a0ed51b3 | 716 | } |
5a34cab7 NC |
717 | else { |
718 | const char *send; | |
719 | itemsize = fieldsize; | |
720 | itembytes = itemsize; | |
721 | sv_pos_u2b(sv, &itembytes, 0); | |
722 | send = chophere = s + itembytes; | |
723 | while (s < send || (s == send && isSPACE(*s))) { | |
724 | if (isSPACE(*s)) { | |
725 | if (chopspace) | |
726 | chophere = s; | |
727 | if (*s == '\r') | |
728 | break; | |
729 | } | |
730 | else { | |
731 | if (*s & ~31) | |
732 | gotsome = TRUE; | |
733 | if (strchr(PL_chopset, *s)) | |
734 | chophere = s + 1; | |
735 | } | |
736 | s++; | |
737 | } | |
738 | itemsize = chophere - item; | |
739 | sv_pos_b2u(sv, &itemsize); | |
740 | } | |
741 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
742 | break; |
743 | } | |
a0d0e21e | 744 | } |
5a34cab7 NC |
745 | item_is_utf8 = FALSE; |
746 | if (itemsize <= fieldsize) { | |
747 | const char *const send = chophere = s + itemsize; | |
748 | while (s < send) { | |
749 | if (*s == '\r') { | |
750 | itemsize = s - item; | |
a0d0e21e | 751 | chophere = s; |
a0d0e21e | 752 | break; |
5a34cab7 NC |
753 | } |
754 | if (*s++ & ~31) | |
a0d0e21e | 755 | gotsome = TRUE; |
a0d0e21e | 756 | } |
a0d0e21e | 757 | } |
5a34cab7 NC |
758 | else { |
759 | const char *send; | |
760 | itemsize = fieldsize; | |
761 | send = chophere = s + itemsize; | |
762 | while (s < send || (s == send && isSPACE(*s))) { | |
763 | if (isSPACE(*s)) { | |
764 | if (chopspace) | |
765 | chophere = s; | |
766 | if (*s == '\r') | |
767 | break; | |
768 | } | |
769 | else { | |
770 | if (*s & ~31) | |
771 | gotsome = TRUE; | |
772 | if (strchr(PL_chopset, *s)) | |
773 | chophere = s + 1; | |
774 | } | |
775 | s++; | |
776 | } | |
777 | itemsize = chophere - item; | |
778 | } | |
779 | break; | |
a0d0e21e | 780 | } |
a0d0e21e LW |
781 | |
782 | case FF_SPACE: | |
783 | arg = fieldsize - itemsize; | |
784 | if (arg) { | |
785 | fieldsize -= arg; | |
786 | while (arg-- > 0) | |
787 | *t++ = ' '; | |
788 | } | |
789 | break; | |
790 | ||
791 | case FF_HALFSPACE: | |
792 | arg = fieldsize - itemsize; | |
793 | if (arg) { | |
794 | arg /= 2; | |
795 | fieldsize -= arg; | |
796 | while (arg-- > 0) | |
797 | *t++ = ' '; | |
798 | } | |
799 | break; | |
800 | ||
801 | case FF_ITEM: | |
5a34cab7 NC |
802 | { |
803 | const char *s = item; | |
804 | arg = itemsize; | |
805 | if (item_is_utf8) { | |
806 | if (!targ_is_utf8) { | |
807 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
808 | *t = '\0'; | |
7bf79863 KW |
809 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
810 | fudge + 1); | |
5a34cab7 NC |
811 | t = SvEND(PL_formtarget); |
812 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 813 | } |
5a34cab7 NC |
814 | while (arg--) { |
815 | if (UTF8_IS_CONTINUED(*s)) { | |
816 | STRLEN skip = UTF8SKIP(s); | |
817 | switch (skip) { | |
818 | default: | |
819 | Move(s,t,skip,char); | |
820 | s += skip; | |
821 | t += skip; | |
822 | break; | |
823 | case 7: *t++ = *s++; | |
824 | case 6: *t++ = *s++; | |
825 | case 5: *t++ = *s++; | |
826 | case 4: *t++ = *s++; | |
827 | case 3: *t++ = *s++; | |
828 | case 2: *t++ = *s++; | |
829 | case 1: *t++ = *s++; | |
830 | } | |
831 | } | |
832 | else { | |
833 | if ( !((*t++ = *s++) & ~31) ) | |
834 | t[-1] = ' '; | |
835 | } | |
a0ed51b3 | 836 | } |
5a34cab7 | 837 | break; |
a0ed51b3 | 838 | } |
5a34cab7 NC |
839 | if (targ_is_utf8 && !item_is_utf8) { |
840 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
841 | *t = '\0'; | |
842 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
843 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 844 | #ifdef EBCDIC |
901017d6 | 845 | const int ch = *t; |
5a34cab7 | 846 | if (iscntrl(ch)) |
78da4d13 | 847 | #else |
5a34cab7 | 848 | if (!(*t & ~31)) |
78da4d13 | 849 | #endif |
5a34cab7 NC |
850 | *t = ' '; |
851 | } | |
852 | break; | |
78da4d13 | 853 | } |
5a34cab7 | 854 | while (arg--) { |
9d116dd7 | 855 | #ifdef EBCDIC |
901017d6 | 856 | const int ch = *t++ = *s++; |
5a34cab7 | 857 | if (iscntrl(ch)) |
a0d0e21e | 858 | #else |
5a34cab7 | 859 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 860 | #endif |
5a34cab7 NC |
861 | t[-1] = ' '; |
862 | } | |
863 | break; | |
a0d0e21e | 864 | } |
a0d0e21e LW |
865 | |
866 | case FF_CHOP: | |
5a34cab7 NC |
867 | { |
868 | const char *s = chophere; | |
869 | if (chopspace) { | |
af68e756 | 870 | while (isSPACE(*s)) |
5a34cab7 NC |
871 | s++; |
872 | } | |
873 | sv_chop(sv,s); | |
874 | SvSETMAGIC(sv); | |
875 | break; | |
a0d0e21e | 876 | } |
a0d0e21e | 877 | |
a1b95068 WL |
878 | case FF_LINESNGL: |
879 | chopspace = 0; | |
a0d0e21e | 880 | case FF_LINEGLOB: |
5a34cab7 | 881 | { |
e32383e2 | 882 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 883 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 884 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 885 | itemsize = len; |
5a34cab7 | 886 | if (itemsize) { |
e8e72d41 | 887 | STRLEN to_copy = itemsize; |
5a34cab7 | 888 | const char *const send = s + len; |
35c6393c | 889 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
890 | U8 *tmp = NULL; |
891 | ||
5a34cab7 NC |
892 | gotsome = TRUE; |
893 | chophere = s + itemsize; | |
894 | while (s < send) { | |
895 | if (*s++ == '\n') { | |
896 | if (oneline) { | |
e8e72d41 | 897 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
898 | chophere = s; |
899 | break; | |
900 | } else { | |
901 | if (s == send) { | |
902 | itemsize--; | |
e8e72d41 | 903 | to_copy--; |
5a34cab7 NC |
904 | } else |
905 | lines++; | |
906 | } | |
1bd51a4c | 907 | } |
a0d0e21e | 908 | } |
e8e72d41 | 909 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 910 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
911 | SvCUR_set(PL_formtarget, |
912 | t - SvPVX_const(PL_formtarget)); | |
913 | } else { | |
914 | if (item_is_utf8 && !targ_is_utf8) { | |
915 | /* Upgrade targ to UTF8, and then we reduce it to | |
916 | a problem we have a simple solution for. */ | |
917 | SvCUR_set(PL_formtarget, | |
918 | t - SvPVX_const(PL_formtarget)); | |
919 | targ_is_utf8 = TRUE; | |
920 | /* Don't need get magic. */ | |
7bf79863 | 921 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
922 | } else { |
923 | SvCUR_set(PL_formtarget, | |
924 | t - SvPVX_const(PL_formtarget)); | |
925 | } | |
e8e72d41 NC |
926 | |
927 | /* Easy. They agree. */ | |
928 | assert (item_is_utf8 == targ_is_utf8); | |
929 | } | |
930 | SvGROW(PL_formtarget, | |
931 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 932 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
933 | |
934 | Copy(source, t, to_copy, char); | |
935 | t += to_copy; | |
936 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 937 | if (item_is_utf8) { |
e8e72d41 NC |
938 | if (SvGMAGICAL(sv)) { |
939 | /* Mustn't call sv_pos_b2u() as it does a second | |
940 | mg_get(). Is this a bug? Do we need a _flags() | |
941 | variant? */ | |
942 | itemsize = utf8_length(source, source + itemsize); | |
943 | } else { | |
944 | sv_pos_b2u(sv, &itemsize); | |
945 | } | |
946 | assert(!tmp); | |
947 | } else if (tmp) { | |
948 | Safefree(tmp); | |
f3f2f1a3 | 949 | } |
a0d0e21e | 950 | } |
5a34cab7 | 951 | break; |
a0d0e21e | 952 | } |
a0d0e21e | 953 | |
a1b95068 WL |
954 | case FF_0DECIMAL: |
955 | arg = *fpc++; | |
956 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
957 | fmt = (const char *) |
958 | ((arg & 256) ? | |
959 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 960 | #else |
10edeb5d JH |
961 | fmt = (const char *) |
962 | ((arg & 256) ? | |
963 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
964 | #endif |
965 | goto ff_dec; | |
a0d0e21e | 966 | case FF_DECIMAL: |
a0d0e21e | 967 | arg = *fpc++; |
65202027 | 968 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
969 | fmt = (const char *) |
970 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 971 | #else |
10edeb5d JH |
972 | fmt = (const char *) |
973 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 974 | #endif |
a1b95068 | 975 | ff_dec: |
784707d5 JP |
976 | /* If the field is marked with ^ and the value is undefined, |
977 | blank it out. */ | |
784707d5 JP |
978 | if ((arg & 512) && !SvOK(sv)) { |
979 | arg = fieldsize; | |
980 | while (arg--) | |
981 | *t++ = ' '; | |
982 | break; | |
983 | } | |
984 | gotsome = TRUE; | |
985 | value = SvNV(sv); | |
a1b95068 | 986 | /* overflow evidence */ |
bfed75c6 | 987 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
988 | arg = fieldsize; |
989 | while (arg--) | |
990 | *t++ = '#'; | |
991 | break; | |
992 | } | |
784707d5 JP |
993 | /* Formats aren't yet marked for locales, so assume "yes". */ |
994 | { | |
995 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 996 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
997 | RESTORE_NUMERIC_STANDARD(); |
998 | } | |
999 | t += fieldsize; | |
1000 | break; | |
a1b95068 | 1001 | |
a0d0e21e LW |
1002 | case FF_NEWLINE: |
1003 | f++; | |
1004 | while (t-- > linemark && *t == ' ') ; | |
1005 | t++; | |
1006 | *t++ = '\n'; | |
1007 | break; | |
1008 | ||
1009 | case FF_BLANK: | |
1010 | arg = *fpc++; | |
1011 | if (gotsome) { | |
1012 | if (arg) { /* repeat until fields exhausted? */ | |
1013 | *t = '\0'; | |
b15aece3 | 1014 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 1015 | lines += FmLINES(PL_formtarget); |
1bd51a4c IH |
1016 | if (targ_is_utf8) |
1017 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1018 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
1019 | SP = ORIGMARK; |
1020 | RETURNOP(cLISTOP->op_first); | |
1021 | } | |
1022 | } | |
1023 | else { | |
1024 | t = linemark; | |
1025 | lines--; | |
1026 | } | |
1027 | break; | |
1028 | ||
1029 | case FF_MORE: | |
5a34cab7 NC |
1030 | { |
1031 | const char *s = chophere; | |
1032 | const char *send = item + len; | |
1033 | if (chopspace) { | |
af68e756 | 1034 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 1035 | s++; |
a0d0e21e | 1036 | } |
5a34cab7 NC |
1037 | if (s < send) { |
1038 | char *s1; | |
1039 | arg = fieldsize - itemsize; | |
1040 | if (arg) { | |
1041 | fieldsize -= arg; | |
1042 | while (arg-- > 0) | |
1043 | *t++ = ' '; | |
1044 | } | |
1045 | s1 = t - 3; | |
1046 | if (strnEQ(s1," ",3)) { | |
1047 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
1048 | s1--; | |
1049 | } | |
1050 | *s1++ = '.'; | |
1051 | *s1++ = '.'; | |
1052 | *s1++ = '.'; | |
a0d0e21e | 1053 | } |
5a34cab7 | 1054 | break; |
a0d0e21e | 1055 | } |
a0d0e21e LW |
1056 | case FF_END: |
1057 | *t = '\0'; | |
b15aece3 | 1058 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
1059 | if (targ_is_utf8) |
1060 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1061 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
1062 | SP = ORIGMARK; |
1063 | RETPUSHYES; | |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | ||
1068 | PP(pp_grepstart) | |
1069 | { | |
27da23d5 | 1070 | dVAR; dSP; |
a0d0e21e LW |
1071 | SV *src; |
1072 | ||
3280af22 | 1073 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 1074 | (void)POPMARK; |
54310121 | 1075 | if (GIMME_V == G_SCALAR) |
6e449a3a | 1076 | mXPUSHi(0); |
533c011a | 1077 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 1078 | } |
3280af22 | 1079 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
897d3989 NC |
1080 | Perl_pp_pushmark(aTHX); /* push dst */ |
1081 | Perl_pp_pushmark(aTHX); /* push src */ | |
d343c3ef | 1082 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
1083 | |
1084 | SAVETMPS; | |
59f00321 RGS |
1085 | if (PL_op->op_private & OPpGREP_LEX) |
1086 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1087 | else | |
1088 | SAVE_DEFSV; | |
d343c3ef | 1089 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1090 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1091 | |
3280af22 | 1092 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1093 | SvTEMP_off(src); |
59f00321 RGS |
1094 | if (PL_op->op_private & OPpGREP_LEX) |
1095 | PAD_SVl(PL_op->op_targ) = src; | |
1096 | else | |
414bf5ae | 1097 | DEFSV_set(src); |
a0d0e21e LW |
1098 | |
1099 | PUTBACK; | |
533c011a | 1100 | if (PL_op->op_type == OP_MAPSTART) |
897d3989 | 1101 | Perl_pp_pushmark(aTHX); /* push top */ |
533c011a | 1102 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1103 | } |
1104 | ||
a0d0e21e LW |
1105 | PP(pp_mapwhile) |
1106 | { | |
27da23d5 | 1107 | dVAR; dSP; |
f54cb97a | 1108 | const I32 gimme = GIMME_V; |
544f3153 | 1109 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1110 | I32 count; |
1111 | I32 shift; | |
1112 | SV** src; | |
ac27b0f5 | 1113 | SV** dst; |
a0d0e21e | 1114 | |
544f3153 | 1115 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1116 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1117 | |
1118 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1119 | if (items && gimme != G_VOID) { |
544f3153 GS |
1120 | /* might need to make room back there first */ |
1121 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1122 | /* XXX this implementation is very pessimal because the stack | |
1123 | * is repeatedly extended for every set of items. Is possible | |
1124 | * to do this without any stack extension or copying at all | |
1125 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1126 | * (like foreach does). --gsar */ |
544f3153 GS |
1127 | |
1128 | /* everything in the stack after the destination list moves | |
1129 | * towards the end the stack by the amount of room needed */ | |
1130 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1131 | ||
1132 | /* items to shift up (accounting for the moved source pointer) */ | |
1133 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1134 | |
1135 | /* This optimization is by Ben Tilly and it does | |
1136 | * things differently from what Sarathy (gsar) | |
1137 | * is describing. The downside of this optimization is | |
1138 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1139 | * to the Perl stack, but on the other hand this | |
1140 | * shouldn't be a problem. If Sarathy's idea gets | |
1141 | * implemented, this optimization should become | |
1142 | * irrelevant. --jhi */ | |
1143 | if (shift < count) | |
1144 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1145 | |
924508f0 GS |
1146 | EXTEND(SP,shift); |
1147 | src = SP; | |
1148 | dst = (SP += shift); | |
3280af22 NIS |
1149 | PL_markstack_ptr[-1] += shift; |
1150 | *PL_markstack_ptr += shift; | |
544f3153 | 1151 | while (count--) |
a0d0e21e LW |
1152 | *dst-- = *src--; |
1153 | } | |
544f3153 | 1154 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1155 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 | 1156 | if (gimme == G_ARRAY) { |
b2a2a901 DM |
1157 | /* add returned items to the collection (making mortal copies |
1158 | * if necessary), then clear the current temps stack frame | |
1159 | * *except* for those items. We do this splicing the items | |
1160 | * into the start of the tmps frame (so some items may be on | |
59d53fd6 | 1161 | * the tmps stack twice), then moving PL_tmps_floor above |
b2a2a901 DM |
1162 | * them, then freeing the frame. That way, the only tmps that |
1163 | * accumulate over iterations are the return values for map. | |
1164 | * We have to do to this way so that everything gets correctly | |
1165 | * freed if we die during the map. | |
1166 | */ | |
1167 | I32 tmpsbase; | |
1168 | I32 i = items; | |
1169 | /* make space for the slice */ | |
1170 | EXTEND_MORTAL(items); | |
1171 | tmpsbase = PL_tmps_floor + 1; | |
1172 | Move(PL_tmps_stack + tmpsbase, | |
1173 | PL_tmps_stack + tmpsbase + items, | |
1174 | PL_tmps_ix - PL_tmps_floor, | |
1175 | SV*); | |
1176 | PL_tmps_ix += items; | |
1177 | ||
1178 | while (i-- > 0) { | |
1179 | SV *sv = POPs; | |
1180 | if (!SvTEMP(sv)) | |
1181 | sv = sv_mortalcopy(sv); | |
1182 | *dst-- = sv; | |
1183 | PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv); | |
1184 | } | |
1185 | /* clear the stack frame except for the items */ | |
1186 | PL_tmps_floor += items; | |
1187 | FREETMPS; | |
1188 | /* FREETMPS may have cleared the TEMP flag on some of the items */ | |
1189 | i = items; | |
1190 | while (i-- > 0) | |
1191 | SvTEMP_on(PL_tmps_stack[--tmpsbase]); | |
22023b26 | 1192 | } |
bfed75c6 | 1193 | else { |
22023b26 TP |
1194 | /* scalar context: we don't care about which values map returns |
1195 | * (we use undef here). And so we certainly don't want to do mortal | |
1196 | * copies of meaningless values. */ | |
1197 | while (items-- > 0) { | |
b988aa42 | 1198 | (void)POPs; |
22023b26 TP |
1199 | *dst-- = &PL_sv_undef; |
1200 | } | |
b2a2a901 | 1201 | FREETMPS; |
22023b26 | 1202 | } |
a0d0e21e | 1203 | } |
b2a2a901 DM |
1204 | else { |
1205 | FREETMPS; | |
1206 | } | |
d343c3ef | 1207 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1208 | |
1209 | /* All done yet? */ | |
3280af22 | 1210 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1211 | |
1212 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1213 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1214 | (void)POPMARK; /* pop src */ |
3280af22 | 1215 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1216 | (void)POPMARK; /* pop dst */ |
3280af22 | 1217 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1218 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1219 | if (PL_op->op_private & OPpGREP_LEX) { |
1220 | SV* sv = sv_newmortal(); | |
1221 | sv_setiv(sv, items); | |
1222 | PUSHs(sv); | |
1223 | } | |
1224 | else { | |
1225 | dTARGET; | |
1226 | XPUSHi(items); | |
1227 | } | |
a0d0e21e | 1228 | } |
54310121 | 1229 | else if (gimme == G_ARRAY) |
1230 | SP += items; | |
a0d0e21e LW |
1231 | RETURN; |
1232 | } | |
1233 | else { | |
1234 | SV *src; | |
1235 | ||
d343c3ef | 1236 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1237 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1238 | |
544f3153 | 1239 | /* set $_ to the new source item */ |
3280af22 | 1240 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1241 | SvTEMP_off(src); |
59f00321 RGS |
1242 | if (PL_op->op_private & OPpGREP_LEX) |
1243 | PAD_SVl(PL_op->op_targ) = src; | |
1244 | else | |
414bf5ae | 1245 | DEFSV_set(src); |
a0d0e21e LW |
1246 | |
1247 | RETURNOP(cLOGOP->op_other); | |
1248 | } | |
1249 | } | |
1250 | ||
a0d0e21e LW |
1251 | /* Range stuff. */ |
1252 | ||
1253 | PP(pp_range) | |
1254 | { | |
97aff369 | 1255 | dVAR; |
a0d0e21e | 1256 | if (GIMME == G_ARRAY) |
1a67a97c | 1257 | return NORMAL; |
538573f7 | 1258 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1259 | return cLOGOP->op_other; |
538573f7 | 1260 | else |
1a67a97c | 1261 | return NORMAL; |
a0d0e21e LW |
1262 | } |
1263 | ||
1264 | PP(pp_flip) | |
1265 | { | |
97aff369 | 1266 | dVAR; |
39644a26 | 1267 | dSP; |
a0d0e21e LW |
1268 | |
1269 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1270 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1271 | } |
1272 | else { | |
1273 | dTOPss; | |
44f8325f | 1274 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1275 | int flip = 0; |
790090df | 1276 | |
bfed75c6 | 1277 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1278 | if (GvIO(PL_last_in_gv)) { |
1279 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1280 | } | |
1281 | else { | |
fafc274c | 1282 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1283 | if (gv && GvSV(gv)) |
1284 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1285 | } |
bfed75c6 AL |
1286 | } else { |
1287 | flip = SvTRUE(sv); | |
1288 | } | |
1289 | if (flip) { | |
a0d0e21e | 1290 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1291 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1292 | sv_setiv(targ, 1); |
3e3baf6d | 1293 | SETs(targ); |
a0d0e21e LW |
1294 | RETURN; |
1295 | } | |
1296 | else { | |
1297 | sv_setiv(targ, 0); | |
924508f0 | 1298 | SP--; |
1a67a97c | 1299 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1300 | } |
1301 | } | |
76f68e9b | 1302 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1303 | SETs(targ); |
1304 | RETURN; | |
1305 | } | |
1306 | } | |
1307 | ||
8e9bbdb9 RGS |
1308 | /* This code tries to decide if "$left .. $right" should use the |
1309 | magical string increment, or if the range is numeric (we make | |
1310 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1311 | ||
1312 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1313 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1314 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1315 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1316 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1317 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1318 | |
a0d0e21e LW |
1319 | PP(pp_flop) |
1320 | { | |
97aff369 | 1321 | dVAR; dSP; |
a0d0e21e LW |
1322 | |
1323 | if (GIMME == G_ARRAY) { | |
1324 | dPOPPOPssrl; | |
86cb7173 | 1325 | |
5b295bef RD |
1326 | SvGETMAGIC(left); |
1327 | SvGETMAGIC(right); | |
a0d0e21e | 1328 | |
8e9bbdb9 | 1329 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1330 | register IV i, j; |
1331 | IV max; | |
4fe3f0fa MHM |
1332 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1333 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1334 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1335 | i = SvIV(left); |
1336 | max = SvIV(right); | |
bbce6d69 | 1337 | if (max >= i) { |
c1ab3db2 AK |
1338 | j = max - i + 1; |
1339 | EXTEND_MORTAL(j); | |
1340 | EXTEND(SP, j); | |
bbce6d69 | 1341 | } |
c1ab3db2 AK |
1342 | else |
1343 | j = 0; | |
1344 | while (j--) { | |
901017d6 | 1345 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1346 | PUSHs(sv); |
1347 | } | |
1348 | } | |
1349 | else { | |
44f8325f | 1350 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1351 | STRLEN len; |
823a54a3 | 1352 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1353 | |
901017d6 | 1354 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1355 | SvPV_force_nolen(sv); |
89ea2908 | 1356 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1357 | XPUSHs(sv); |
b15aece3 | 1358 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1359 | break; |
a0d0e21e LW |
1360 | sv = sv_2mortal(newSVsv(sv)); |
1361 | sv_inc(sv); | |
1362 | } | |
a0d0e21e LW |
1363 | } |
1364 | } | |
1365 | else { | |
1366 | dTOPss; | |
901017d6 | 1367 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1368 | int flop = 0; |
a0d0e21e | 1369 | sv_inc(targ); |
4e3399f9 YST |
1370 | |
1371 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1372 | if (GvIO(PL_last_in_gv)) { | |
1373 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1374 | } | |
1375 | else { | |
fafc274c | 1376 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1377 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1378 | } | |
1379 | } | |
1380 | else { | |
1381 | flop = SvTRUE(sv); | |
1382 | } | |
1383 | ||
1384 | if (flop) { | |
a0d0e21e | 1385 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1386 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1387 | } |
1388 | SETs(targ); | |
1389 | } | |
1390 | ||
1391 | RETURN; | |
1392 | } | |
1393 | ||
1394 | /* Control. */ | |
1395 | ||
27da23d5 | 1396 | static const char * const context_name[] = { |
515afda2 | 1397 | "pseudo-block", |
f31522f3 | 1398 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1399 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1400 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1401 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1402 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1403 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1404 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1405 | "subroutine", |
76753e7f | 1406 | "format", |
515afda2 | 1407 | "eval", |
515afda2 | 1408 | "substitution", |
515afda2 NC |
1409 | }; |
1410 | ||
76e3520e | 1411 | STATIC I32 |
06b5626a | 1412 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1413 | { |
97aff369 | 1414 | dVAR; |
a0d0e21e | 1415 | register I32 i; |
a0d0e21e | 1416 | |
7918f24d NC |
1417 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1418 | ||
a0d0e21e | 1419 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1420 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1421 | switch (CxTYPE(cx)) { |
a0d0e21e | 1422 | case CXt_SUBST: |
a0d0e21e | 1423 | case CXt_SUB: |
7766f137 | 1424 | case CXt_FORMAT: |
a0d0e21e | 1425 | case CXt_EVAL: |
0a753a76 | 1426 | case CXt_NULL: |
a2a5de95 NC |
1427 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1428 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1429 | if (CxTYPE(cx) == CXt_NULL) |
1430 | return -1; | |
1431 | break; | |
c6fdafd0 | 1432 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1433 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1434 | case CXt_LOOP_FOR: |
1435 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1436 | { |
1437 | const char *cx_label = CxLABEL(cx); | |
1438 | if (!cx_label || strNE(label, cx_label) ) { | |
1c98cc53 | 1439 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1440 | (long)i, cx_label)); |
a0d0e21e LW |
1441 | continue; |
1442 | } | |
1c98cc53 | 1443 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1444 | return i; |
7e8f1eac | 1445 | } |
a0d0e21e LW |
1446 | } |
1447 | } | |
1448 | return i; | |
1449 | } | |
1450 | ||
0d863452 RH |
1451 | |
1452 | ||
e50aee73 | 1453 | I32 |
864dbfa3 | 1454 | Perl_dowantarray(pTHX) |
e50aee73 | 1455 | { |
97aff369 | 1456 | dVAR; |
f54cb97a | 1457 | const I32 gimme = block_gimme(); |
54310121 | 1458 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1459 | } | |
1460 | ||
1461 | I32 | |
864dbfa3 | 1462 | Perl_block_gimme(pTHX) |
54310121 | 1463 | { |
97aff369 | 1464 | dVAR; |
06b5626a | 1465 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1466 | if (cxix < 0) |
46fc3d4c | 1467 | return G_VOID; |
e50aee73 | 1468 | |
54310121 | 1469 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1470 | case G_VOID: |
1471 | return G_VOID; | |
54310121 | 1472 | case G_SCALAR: |
e50aee73 | 1473 | return G_SCALAR; |
54310121 | 1474 | case G_ARRAY: |
1475 | return G_ARRAY; | |
1476 | default: | |
cea2e8a9 | 1477 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1478 | /* NOTREACHED */ |
1479 | return 0; | |
54310121 | 1480 | } |
e50aee73 AD |
1481 | } |
1482 | ||
78f9721b SM |
1483 | I32 |
1484 | Perl_is_lvalue_sub(pTHX) | |
1485 | { | |
97aff369 | 1486 | dVAR; |
06b5626a | 1487 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1488 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1489 | ||
bafb2adc NC |
1490 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1491 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1492 | else |
1493 | return 0; | |
1494 | } | |
1495 | ||
76e3520e | 1496 | STATIC I32 |
901017d6 | 1497 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1498 | { |
97aff369 | 1499 | dVAR; |
a0d0e21e | 1500 | I32 i; |
7918f24d NC |
1501 | |
1502 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1503 | ||
a0d0e21e | 1504 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1505 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1506 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1507 | default: |
1508 | continue; | |
1509 | case CXt_EVAL: | |
1510 | case CXt_SUB: | |
7766f137 | 1511 | case CXt_FORMAT: |
1c98cc53 | 1512 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1513 | return i; |
1514 | } | |
1515 | } | |
1516 | return i; | |
1517 | } | |
1518 | ||
76e3520e | 1519 | STATIC I32 |
cea2e8a9 | 1520 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1521 | { |
97aff369 | 1522 | dVAR; |
a0d0e21e | 1523 | I32 i; |
a0d0e21e | 1524 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1525 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1526 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1527 | default: |
1528 | continue; | |
1529 | case CXt_EVAL: | |
1c98cc53 | 1530 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1531 | return i; |
1532 | } | |
1533 | } | |
1534 | return i; | |
1535 | } | |
1536 | ||
76e3520e | 1537 | STATIC I32 |
cea2e8a9 | 1538 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1539 | { |
97aff369 | 1540 | dVAR; |
a0d0e21e | 1541 | I32 i; |
a0d0e21e | 1542 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1543 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1544 | switch (CxTYPE(cx)) { |
a0d0e21e | 1545 | case CXt_SUBST: |
a0d0e21e | 1546 | case CXt_SUB: |
7766f137 | 1547 | case CXt_FORMAT: |
a0d0e21e | 1548 | case CXt_EVAL: |
0a753a76 | 1549 | case CXt_NULL: |
a2a5de95 NC |
1550 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1551 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1552 | if ((CxTYPE(cx)) == CXt_NULL) |
1553 | return -1; | |
1554 | break; | |
c6fdafd0 | 1555 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1556 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1557 | case CXt_LOOP_FOR: |
1558 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1559 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1560 | return i; |
1561 | } | |
1562 | } | |
1563 | return i; | |
1564 | } | |
1565 | ||
0d863452 RH |
1566 | STATIC I32 |
1567 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1568 | { | |
97aff369 | 1569 | dVAR; |
0d863452 RH |
1570 | I32 i; |
1571 | for (i = startingblock; i >= 0; i--) { | |
1572 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1573 | switch (CxTYPE(cx)) { | |
1574 | default: | |
1575 | continue; | |
1576 | case CXt_GIVEN: | |
1c98cc53 | 1577 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1578 | return i; |
3b719c58 NC |
1579 | case CXt_LOOP_PLAIN: |
1580 | assert(!CxFOREACHDEF(cx)); | |
1581 | break; | |
c6fdafd0 | 1582 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1583 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1584 | case CXt_LOOP_FOR: |
0d863452 | 1585 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1586 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1587 | return i; |
1588 | } | |
1589 | } | |
1590 | } | |
1591 | return i; | |
1592 | } | |
1593 | ||
1594 | STATIC I32 | |
1595 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1596 | { | |
97aff369 | 1597 | dVAR; |
0d863452 RH |
1598 | I32 i; |
1599 | for (i = startingblock; i >= 0; i--) { | |
1600 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1601 | switch (CxTYPE(cx)) { | |
1602 | default: | |
1603 | continue; | |
1604 | case CXt_WHEN: | |
1c98cc53 | 1605 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1606 | return i; |
1607 | } | |
1608 | } | |
1609 | return i; | |
1610 | } | |
1611 | ||
a0d0e21e | 1612 | void |
864dbfa3 | 1613 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1614 | { |
97aff369 | 1615 | dVAR; |
a0d0e21e LW |
1616 | I32 optype; |
1617 | ||
1618 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1619 | SV *sv; |
06b5626a | 1620 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1621 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1622 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1623 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1624 | case CXt_SUBST: |
1625 | POPSUBST(cx); | |
1626 | continue; /* not break */ | |
a0d0e21e | 1627 | case CXt_SUB: |
b0d9ce38 GS |
1628 | POPSUB(cx,sv); |
1629 | LEAVESUB(sv); | |
a0d0e21e LW |
1630 | break; |
1631 | case CXt_EVAL: | |
1632 | POPEVAL(cx); | |
1633 | break; | |
c6fdafd0 | 1634 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1635 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1636 | case CXt_LOOP_FOR: |
1637 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1638 | POPLOOP(cx); |
1639 | break; | |
0a753a76 | 1640 | case CXt_NULL: |
a0d0e21e | 1641 | break; |
7766f137 GS |
1642 | case CXt_FORMAT: |
1643 | POPFORMAT(cx); | |
1644 | break; | |
a0d0e21e | 1645 | } |
c90c0ff4 | 1646 | cxstack_ix--; |
a0d0e21e | 1647 | } |
1b6737cc | 1648 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1649 | } |
1650 | ||
5a844595 GS |
1651 | void |
1652 | Perl_qerror(pTHX_ SV *err) | |
1653 | { | |
97aff369 | 1654 | dVAR; |
7918f24d NC |
1655 | |
1656 | PERL_ARGS_ASSERT_QERROR; | |
1657 | ||
6b2fb389 DM |
1658 | if (PL_in_eval) { |
1659 | if (PL_in_eval & EVAL_KEEPERR) { | |
1660 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", | |
1661 | SvPV_nolen_const(err)); | |
1662 | } | |
1663 | else | |
1664 | sv_catsv(ERRSV, err); | |
1665 | } | |
5a844595 GS |
1666 | else if (PL_errors) |
1667 | sv_catsv(PL_errors, err); | |
1668 | else | |
be2597df | 1669 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1670 | if (PL_parser) |
1671 | ++PL_parser->error_count; | |
5a844595 GS |
1672 | } |
1673 | ||
bb4c52e0 | 1674 | void |
c5df3096 | 1675 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1676 | { |
27da23d5 | 1677 | dVAR; |
c5df3096 | 1678 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1679 | U8 in_eval = PL_in_eval; |
c5df3096 | 1680 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1681 | |
96d9b9cd | 1682 | if (in_eval) { |
a0d0e21e | 1683 | I32 cxix; |
a0d0e21e | 1684 | I32 gimme; |
a0d0e21e | 1685 | |
22a30693 Z |
1686 | /* |
1687 | * Historically, perl used to set ERRSV ($@) early in the die | |
1688 | * process and rely on it not getting clobbered during unwinding. | |
1689 | * That sucked, because it was liable to get clobbered, so the | |
1690 | * setting of ERRSV used to emit the exception from eval{} has | |
1691 | * been moved to much later, after unwinding (see just before | |
1692 | * JMPENV_JUMP below). However, some modules were relying on the | |
1693 | * early setting, by examining $@ during unwinding to use it as | |
1694 | * a flag indicating whether the current unwinding was caused by | |
1695 | * an exception. It was never a reliable flag for that purpose, | |
1696 | * being totally open to false positives even without actual | |
1697 | * clobberage, but was useful enough for production code to | |
1698 | * semantically rely on it. | |
1699 | * | |
1700 | * We'd like to have a proper introspective interface that | |
1701 | * explicitly describes the reason for whatever unwinding | |
1702 | * operations are currently in progress, so that those modules | |
1703 | * work reliably and $@ isn't further overloaded. But we don't | |
1704 | * have one yet. In its absence, as a stopgap measure, ERRSV is | |
1705 | * now *additionally* set here, before unwinding, to serve as the | |
1706 | * (unreliable) flag that it used to. | |
1707 | * | |
1708 | * This behaviour is temporary, and should be removed when a | |
1709 | * proper way to detect exceptional unwinding has been developed. | |
1710 | * As of 2010-12, the authors of modules relying on the hack | |
1711 | * are aware of the issue, because the modules failed on | |
1712 | * perls 5.13.{1..7} which had late setting of $@ without this | |
1713 | * early-setting hack. | |
1714 | */ | |
1715 | if (!(in_eval & EVAL_KEEPERR)) { | |
1716 | SvTEMP_off(exceptsv); | |
1717 | sv_setsv(ERRSV, exceptsv); | |
1718 | } | |
1719 | ||
5a844595 GS |
1720 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1721 | && PL_curstackinfo->si_prev) | |
1722 | { | |
bac4b2ad | 1723 | dounwind(-1); |
d3acc0f7 | 1724 | POPSTACK; |
bac4b2ad | 1725 | } |
e336de0d | 1726 | |
a0d0e21e LW |
1727 | if (cxix >= 0) { |
1728 | I32 optype; | |
b6494f15 | 1729 | SV *namesv; |
35a4481c | 1730 | register PERL_CONTEXT *cx; |
901017d6 | 1731 | SV **newsp; |
8f89e5a9 Z |
1732 | COP *oldcop; |
1733 | JMPENV *restartjmpenv; | |
1734 | OP *restartop; | |
a0d0e21e LW |
1735 | |
1736 | if (cxix < cxstack_ix) | |
1737 | dounwind(cxix); | |
1738 | ||
3280af22 | 1739 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1740 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1741 | STRLEN msglen; |
96d9b9cd | 1742 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1743 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1744 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1745 | my_exit(1); |
1746 | } | |
1747 | POPEVAL(cx); | |
b6494f15 | 1748 | namesv = cx->blk_eval.old_namesv; |
8f89e5a9 Z |
1749 | oldcop = cx->blk_oldcop; |
1750 | restartjmpenv = cx->blk_eval.cur_top_env; | |
1751 | restartop = cx->blk_eval.retop; | |
a0d0e21e LW |
1752 | |
1753 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1754 | *++newsp = &PL_sv_undef; |
1755 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1756 | |
1757 | LEAVE; | |
748a9306 | 1758 | |
7fb6a879 GS |
1759 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1760 | * XXX it might be better to find a way to avoid messing with | |
1761 | * PL_curcop in save_re_context() instead, but this is a more | |
1762 | * minimal fix --GSAR */ | |
8f89e5a9 | 1763 | PL_curcop = oldcop; |
7fb6a879 | 1764 | |
7a2e2cd6 | 1765 | if (optype == OP_REQUIRE) { |
96d9b9cd | 1766 | const char* const msg = SvPVx_nolen_const(exceptsv); |
b6494f15 VP |
1767 | (void)hv_store(GvHVn(PL_incgv), |
1768 | SvPVX_const(namesv), SvCUR(namesv), | |
27bcc0a7 | 1769 | &PL_sv_undef, 0); |
27e90453 DM |
1770 | /* note that unlike pp_entereval, pp_require isn't |
1771 | * supposed to trap errors. So now that we've popped the | |
1772 | * EVAL that pp_require pushed, and processed the error | |
1773 | * message, rethrow the error */ | |
9fed9930 NC |
1774 | Perl_croak(aTHX_ "%sCompilation failed in require", |
1775 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1776 | } |
c5df3096 | 1777 | if (in_eval & EVAL_KEEPERR) { |
7ce09284 Z |
1778 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", |
1779 | SvPV_nolen_const(exceptsv)); | |
96d9b9cd Z |
1780 | } |
1781 | else { | |
1782 | sv_setsv(ERRSV, exceptsv); | |
1783 | } | |
8f89e5a9 Z |
1784 | PL_restartjmpenv = restartjmpenv; |
1785 | PL_restartop = restartop; | |
bb4c52e0 GG |
1786 | JMPENV_JUMP(3); |
1787 | /* NOTREACHED */ | |
a0d0e21e LW |
1788 | } |
1789 | } | |
87582a92 | 1790 | |
96d9b9cd | 1791 | write_to_stderr(exceptsv); |
f86702cc | 1792 | my_failure_exit(); |
1793 | /* NOTREACHED */ | |
a0d0e21e LW |
1794 | } |
1795 | ||
1796 | PP(pp_xor) | |
1797 | { | |
97aff369 | 1798 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1799 | if (SvTRUE(left) != SvTRUE(right)) |
1800 | RETSETYES; | |
1801 | else | |
1802 | RETSETNO; | |
1803 | } | |
1804 | ||
8dff4fc5 BM |
1805 | /* |
1806 | =for apidoc caller_cx | |
1807 | ||
1808 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1809 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1810 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1811 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1812 | immediately-surrounding Perl code. | |
1813 | ||
1814 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1815 | behalf of the debugger. If the stack frame requested was a sub called by | |
1816 | C<DB::sub>, the return value will be the frame for the call to | |
1817 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1818 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1819 | frame for the sub call itself. | |
1820 | ||
1821 | =cut | |
1822 | */ | |
1823 | ||
1824 | const PERL_CONTEXT * | |
1825 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1826 | { |
a0d0e21e | 1827 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1828 | register const PERL_CONTEXT *cx; |
1829 | register const PERL_CONTEXT *ccstack = cxstack; | |
1830 | const PERL_SI *top_si = PL_curstackinfo; | |
27d41816 | 1831 | |
a0d0e21e | 1832 | for (;;) { |
2c375eb9 GS |
1833 | /* we may be in a higher stacklevel, so dig down deeper */ |
1834 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1835 | top_si = top_si->si_prev; | |
1836 | ccstack = top_si->si_cxstack; | |
1837 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1838 | } | |
8dff4fc5 BM |
1839 | if (cxix < 0) |
1840 | return NULL; | |
f2a7f298 DG |
1841 | /* caller() should not report the automatic calls to &DB::sub */ |
1842 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1843 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1844 | count++; |
1845 | if (!count--) | |
1846 | break; | |
2c375eb9 | 1847 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1848 | } |
2c375eb9 GS |
1849 | |
1850 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1851 | if (dbcxp) *dbcxp = cx; |
1852 | ||
7766f137 | 1853 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1854 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1855 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1856 | field below is defined for any cx. */ |
f2a7f298 DG |
1857 | /* caller() should not report the automatic calls to &DB::sub */ |
1858 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1859 | cx = &ccstack[dbcxix]; |
06a5b730 | 1860 | } |
1861 | ||
8dff4fc5 BM |
1862 | return cx; |
1863 | } | |
1864 | ||
1865 | PP(pp_caller) | |
1866 | { | |
1867 | dVAR; | |
1868 | dSP; | |
1869 | register const PERL_CONTEXT *cx; | |
1870 | const PERL_CONTEXT *dbcx; | |
1871 | I32 gimme; | |
1872 | const char *stashname; | |
1873 | I32 count = 0; | |
1874 | ||
1875 | if (MAXARG) | |
1876 | count = POPi; | |
1877 | ||
1878 | cx = caller_cx(count, &dbcx); | |
1879 | if (!cx) { | |
1880 | if (GIMME != G_ARRAY) { | |
1881 | EXTEND(SP, 1); | |
1882 | RETPUSHUNDEF; | |
1883 | } | |
1884 | RETURN; | |
1885 | } | |
1886 | ||
ed094faf | 1887 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1888 | if (GIMME != G_ARRAY) { |
27d41816 | 1889 | EXTEND(SP, 1); |
ed094faf | 1890 | if (!stashname) |
3280af22 | 1891 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1892 | else { |
1893 | dTARGET; | |
ed094faf | 1894 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1895 | PUSHs(TARG); |
1896 | } | |
a0d0e21e LW |
1897 | RETURN; |
1898 | } | |
a0d0e21e | 1899 | |
b3ca2e83 | 1900 | EXTEND(SP, 11); |
27d41816 | 1901 | |
ed094faf | 1902 | if (!stashname) |
3280af22 | 1903 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1904 | else |
6e449a3a MHM |
1905 | mPUSHs(newSVpv(stashname, 0)); |
1906 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1907 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1908 | if (!MAXARG) |
1909 | RETURN; | |
7766f137 | 1910 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1911 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1912 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1913 | if (isGV(cvgv)) { |
561b68a9 | 1914 | SV * const sv = newSV(0); |
c445ea15 | 1915 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1916 | mPUSHs(sv); |
bf38a478 | 1917 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1918 | } |
1919 | else { | |
84bafc02 | 1920 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1921 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1922 | } |
a0d0e21e LW |
1923 | } |
1924 | else { | |
84bafc02 | 1925 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1926 | mPUSHi(0); |
a0d0e21e | 1927 | } |
54310121 | 1928 | gimme = (I32)cx->blk_gimme; |
1929 | if (gimme == G_VOID) | |
3280af22 | 1930 | PUSHs(&PL_sv_undef); |
54310121 | 1931 | else |
98625aca | 1932 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1933 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1934 | /* eval STRING */ |
85a64632 | 1935 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1936 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1937 | PUSHs(&PL_sv_no); |
0f79a09d | 1938 | } |
811a4de9 | 1939 | /* require */ |
0f79a09d | 1940 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1941 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1942 | PUSHs(&PL_sv_yes); |
06a5b730 | 1943 | } |
811a4de9 GS |
1944 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1945 | else { | |
1946 | PUSHs(&PL_sv_undef); | |
1947 | PUSHs(&PL_sv_undef); | |
1948 | } | |
4633a7c4 | 1949 | } |
a682de96 GS |
1950 | else { |
1951 | PUSHs(&PL_sv_undef); | |
1952 | PUSHs(&PL_sv_undef); | |
1953 | } | |
bafb2adc | 1954 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1955 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1956 | { |
66a1b24b AL |
1957 | AV * const ary = cx->blk_sub.argarray; |
1958 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1959 | |
5b235299 NC |
1960 | if (!PL_dbargs) |
1961 | Perl_init_dbargs(aTHX); | |
a0d0e21e | 1962 | |
3280af22 NIS |
1963 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1964 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1965 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1966 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1967 | } |
f3aa04c2 GS |
1968 | /* XXX only hints propagated via op_private are currently |
1969 | * visible (others are not easily accessible, since they | |
1970 | * use the global PL_hints) */ | |
6e449a3a | 1971 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1972 | { |
1973 | SV * mask ; | |
72dc9ed5 | 1974 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1975 | |
ac27b0f5 | 1976 | if (old_warnings == pWARN_NONE || |
114bafba | 1977 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1978 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1979 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1980 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1981 | /* Get the bit mask for $warnings::Bits{all}, because | |
1982 | * it could have been extended by warnings::register */ | |
1983 | SV **bits_all; | |
6673a63c | 1984 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1985 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1986 | mask = newSVsv(*bits_all); |
1987 | } | |
1988 | else { | |
1989 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1990 | } | |
1991 | } | |
e476b1b5 | 1992 | else |
72dc9ed5 | 1993 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1994 | mPUSHs(mask); |
e476b1b5 | 1995 | } |
b3ca2e83 | 1996 | |
c28fe1ec | 1997 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
20439bc7 | 1998 | sv_2mortal(newRV_noinc(MUTABLE_SV(cop_hints_2hv(cx->blk_oldcop, 0)))) |
b3ca2e83 | 1999 | : &PL_sv_undef); |
a0d0e21e LW |
2000 | RETURN; |
2001 | } | |
2002 | ||
a0d0e21e LW |
2003 | PP(pp_reset) |
2004 | { | |
97aff369 | 2005 | dVAR; |
39644a26 | 2006 | dSP; |
10edeb5d | 2007 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 2008 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 2009 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
2010 | RETURN; |
2011 | } | |
2012 | ||
dd2155a4 DM |
2013 | /* like pp_nextstate, but used instead when the debugger is active */ |
2014 | ||
a0d0e21e LW |
2015 | PP(pp_dbstate) |
2016 | { | |
27da23d5 | 2017 | dVAR; |
533c011a | 2018 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 2019 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 2020 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
2021 | FREETMPS; |
2022 | ||
f410a211 NC |
2023 | PERL_ASYNC_CHECK(); |
2024 | ||
5df8de69 DM |
2025 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
2026 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 2027 | { |
39644a26 | 2028 | dSP; |
c09156bb | 2029 | register PERL_CONTEXT *cx; |
f54cb97a | 2030 | const I32 gimme = G_ARRAY; |
eb160463 | 2031 | U8 hasargs; |
0bd48802 AL |
2032 | GV * const gv = PL_DBgv; |
2033 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 2034 | |
a0d0e21e | 2035 | if (!cv) |
cea2e8a9 | 2036 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 2037 | |
aea4f609 DM |
2038 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
2039 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 2040 | return NORMAL; |
748a9306 | 2041 | |
a57c6685 | 2042 | ENTER; |
4633a7c4 LW |
2043 | SAVETMPS; |
2044 | ||
3280af22 | 2045 | SAVEI32(PL_debug); |
55497cff | 2046 | SAVESTACK_POS(); |
3280af22 | 2047 | PL_debug = 0; |
748a9306 | 2048 | hasargs = 0; |
924508f0 | 2049 | SPAGAIN; |
748a9306 | 2050 | |
aed2304a | 2051 | if (CvISXSUB(cv)) { |
c127bd3a SF |
2052 | CvDEPTH(cv)++; |
2053 | PUSHMARK(SP); | |
2054 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
2055 | CvDEPTH(cv)--; | |
2056 | FREETMPS; | |
a57c6685 | 2057 | LEAVE; |
c127bd3a SF |
2058 | return NORMAL; |
2059 | } | |
2060 | else { | |
2061 | PUSHBLOCK(cx, CXt_SUB, SP); | |
2062 | PUSHSUB_DB(cx); | |
2063 | cx->blk_sub.retop = PL_op->op_next; | |
2064 | CvDEPTH(cv)++; | |
2065 | SAVECOMPPAD(); | |
2066 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
2067 | RETURNOP(CvSTART(cv)); | |
2068 | } | |
a0d0e21e LW |
2069 | } |
2070 | else | |
2071 | return NORMAL; | |
2072 | } | |
2073 | ||
a0d0e21e LW |
2074 | PP(pp_enteriter) |
2075 | { | |
27da23d5 | 2076 | dVAR; dSP; dMARK; |
c09156bb | 2077 | register PERL_CONTEXT *cx; |
f54cb97a | 2078 | const I32 gimme = GIMME_V; |
df530c37 | 2079 | void *itervar; /* location of the iteration variable */ |
840fe433 | 2080 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 2081 | |
d343c3ef | 2082 | ENTER_with_name("loop1"); |
4633a7c4 LW |
2083 | SAVETMPS; |
2084 | ||
aafca525 DM |
2085 | if (PL_op->op_targ) { /* "my" variable */ |
2086 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
2087 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
2088 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
2089 | SVs_PADSTALE, SVs_PADSTALE); | |
2090 | } | |
09edbca0 | 2091 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 2092 | #ifdef USE_ITHREADS |
df530c37 | 2093 | itervar = PL_comppad; |
89e00a7c | 2094 | #else |
aafca525 | 2095 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 2096 | #endif |
54b9620d | 2097 | } |
aafca525 | 2098 | else { /* symbol table variable */ |
159b6efe | 2099 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
2100 | SV** svp = &GvSV(gv); |
2101 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 2102 | *svp = newSV(0); |
df530c37 | 2103 | itervar = (void *)gv; |
54b9620d | 2104 | } |
4633a7c4 | 2105 | |
0d863452 RH |
2106 | if (PL_op->op_private & OPpITER_DEF) |
2107 | cxtype |= CXp_FOR_DEF; | |
2108 | ||
d343c3ef | 2109 | ENTER_with_name("loop2"); |
a0d0e21e | 2110 | |
7766f137 | 2111 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 2112 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 2113 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
2114 | SV *maybe_ary = POPs; |
2115 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 2116 | dPOPss; |
d01136d6 | 2117 | SV * const right = maybe_ary; |
984a4bea RD |
2118 | SvGETMAGIC(sv); |
2119 | SvGETMAGIC(right); | |
4fe3f0fa | 2120 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2121 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2122 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2123 | /* Make sure that no-one re-orders cop.h and breaks our | |
2124 | assumptions */ | |
2125 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
2126 | #ifdef NV_PRESERVES_UV |
2127 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
2128 | (SvNV(sv) > (NV)IV_MAX))) | |
2129 | || | |
2130 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
2131 | (SvNV(right) < (NV)IV_MIN)))) | |
2132 | #else | |
2133 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
2134 | || | |
2135 | ((SvNV(sv) > 0) && | |
2136 | ((SvUV(sv) > (UV)IV_MAX) || | |
2137 | (SvNV(sv) > (NV)UV_MAX))))) | |
2138 | || | |
2139 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
2140 | || | |
2141 | ((SvNV(right) > 0) && | |
2142 | ((SvUV(right) > (UV)IV_MAX) || | |
2143 | (SvNV(right) > (NV)UV_MAX)))))) | |
2144 | #endif | |
076d9a11 | 2145 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
2146 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
2147 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
2148 | #ifdef DEBUGGING |
2149 | /* for correct -Dstv display */ | |
2150 | cx->blk_oldsp = sp - PL_stack_base; | |
2151 | #endif | |
89ea2908 | 2152 | } |
3f63a782 | 2153 | else { |
d01136d6 BS |
2154 | cx->cx_type &= ~CXTYPEMASK; |
2155 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2156 | /* Make sure that no-one re-orders cop.h and breaks our | |
2157 | assumptions */ | |
2158 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2159 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2160 | cx->blk_loop.state_u.lazysv.end = right; | |
2161 | SvREFCNT_inc(right); | |
2162 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2163 | /* This will do the upgrade to SVt_PV, and warn if the value |
2164 | is uninitialised. */ | |
10516c54 | 2165 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2166 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2167 | to replace !SvOK() with a pointer to "". */ | |
2168 | if (!SvOK(right)) { | |
2169 | SvREFCNT_dec(right); | |
d01136d6 | 2170 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2171 | } |
3f63a782 | 2172 | } |
89ea2908 | 2173 | } |
d01136d6 | 2174 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2175 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2176 | SvREFCNT_inc(maybe_ary); |
2177 | cx->blk_loop.state_u.ary.ix = | |
2178 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2179 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2180 | -1; | |
ef3e5ea9 | 2181 | } |
89ea2908 | 2182 | } |
d01136d6 BS |
2183 | else { /* iterating over items on the stack */ |
2184 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2185 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2186 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2187 | } |
2188 | else { | |
d01136d6 | 2189 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2190 | } |
4633a7c4 | 2191 | } |
a0d0e21e LW |
2192 | |
2193 | RETURN; | |
2194 | } | |
2195 | ||
2196 | PP(pp_enterloop) | |
2197 | { | |
27da23d5 | 2198 | dVAR; dSP; |
c09156bb | 2199 | register PERL_CONTEXT *cx; |
f54cb97a | 2200 | const I32 gimme = GIMME_V; |
a0d0e21e | 2201 | |
d343c3ef | 2202 | ENTER_with_name("loop1"); |
a0d0e21e | 2203 | SAVETMPS; |
d343c3ef | 2204 | ENTER_with_name("loop2"); |
a0d0e21e | 2205 | |
3b719c58 NC |
2206 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2207 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2208 | |
2209 | RETURN; | |
2210 | } | |
2211 | ||
2212 | PP(pp_leaveloop) | |
2213 | { | |
27da23d5 | 2214 | dVAR; dSP; |
c09156bb | 2215 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2216 | I32 gimme; |
2217 | SV **newsp; | |
2218 | PMOP *newpm; | |
2219 | SV **mark; | |
2220 | ||
2221 | POPBLOCK(cx,newpm); | |
3b719c58 | 2222 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2223 | mark = newsp; |
a8bba7fa | 2224 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2225 | |
a1f49e72 | 2226 | TAINT_NOT; |
54310121 | 2227 | if (gimme == G_VOID) |
6f207bd3 | 2228 | NOOP; |
54310121 | 2229 | else if (gimme == G_SCALAR) { |
2230 | if (mark < SP) | |
2231 | *++newsp = sv_mortalcopy(*SP); | |
2232 | else | |
3280af22 | 2233 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2234 | } |
2235 | else { | |
a1f49e72 | 2236 | while (mark < SP) { |
a0d0e21e | 2237 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2238 | TAINT_NOT; /* Each item is independent */ |
2239 | } | |
a0d0e21e | 2240 | } |
f86702cc | 2241 | SP = newsp; |
2242 | PUTBACK; | |
2243 | ||
a8bba7fa | 2244 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2245 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2246 | |
d343c3ef GG |
2247 | LEAVE_with_name("loop2"); |
2248 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2249 | |
f86702cc | 2250 | return NORMAL; |
a0d0e21e LW |
2251 | } |
2252 | ||
2253 | PP(pp_return) | |
2254 | { | |
27da23d5 | 2255 | dVAR; dSP; dMARK; |
c09156bb | 2256 | register PERL_CONTEXT *cx; |
f86702cc | 2257 | bool popsub2 = FALSE; |
b45de488 | 2258 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2259 | I32 gimme; |
2260 | SV **newsp; | |
2261 | PMOP *newpm; | |
2262 | I32 optype = 0; | |
b6494f15 | 2263 | SV *namesv; |
b0d9ce38 | 2264 | SV *sv; |
b263a1ad | 2265 | OP *retop = NULL; |
a0d0e21e | 2266 | |
0bd48802 AL |
2267 | const I32 cxix = dopoptosub(cxstack_ix); |
2268 | ||
9850bf21 RH |
2269 | if (cxix < 0) { |
2270 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2271 | * sort block, which is a CXt_NULL | |
2272 | * not a CXt_SUB */ | |
2273 | dounwind(0); | |
d7507f74 RH |
2274 | PL_stack_base[1] = *PL_stack_sp; |
2275 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2276 | return 0; |
2277 | } | |
9850bf21 RH |
2278 | else |
2279 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2280 | } |
a0d0e21e LW |
2281 | if (cxix < cxstack_ix) |
2282 | dounwind(cxix); | |
2283 | ||
d7507f74 RH |
2284 | if (CxMULTICALL(&cxstack[cxix])) { |
2285 | gimme = cxstack[cxix].blk_gimme; | |
2286 | if (gimme == G_VOID) | |
2287 | PL_stack_sp = PL_stack_base; | |
2288 | else if (gimme == G_SCALAR) { | |
2289 | PL_stack_base[1] = *PL_stack_sp; | |
2290 | PL_stack_sp = PL_stack_base + 1; | |
2291 | } | |
9850bf21 | 2292 | return 0; |
d7507f74 | 2293 | } |
9850bf21 | 2294 | |
a0d0e21e | 2295 | POPBLOCK(cx,newpm); |
6b35e009 | 2296 | switch (CxTYPE(cx)) { |
a0d0e21e | 2297 | case CXt_SUB: |
f86702cc | 2298 | popsub2 = TRUE; |
f39bc417 | 2299 | retop = cx->blk_sub.retop; |
5dd42e15 | 2300 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2301 | break; |
2302 | case CXt_EVAL: | |
b45de488 GS |
2303 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2304 | clear_errsv = TRUE; | |
a0d0e21e | 2305 | POPEVAL(cx); |
b6494f15 | 2306 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2307 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2308 | if (CxTRYBLOCK(cx)) |
2309 | break; | |
748a9306 LW |
2310 | if (optype == OP_REQUIRE && |
2311 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2312 | { | |
54310121 | 2313 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
2314 | (void)hv_delete(GvHVn(PL_incgv), |
2315 | SvPVX_const(namesv), SvCUR(namesv), | |
2316 | G_DISCARD); | |
2317 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2318 | } |
a0d0e21e | 2319 | break; |
7766f137 GS |
2320 | case CXt_FORMAT: |
2321 | POPFORMAT(cx); | |
f39bc417 | 2322 | retop = cx->blk_sub.retop; |
7766f137 | 2323 | break; |
a0d0e21e | 2324 | default: |
cea2e8a9 | 2325 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2326 | } |
2327 | ||
a1f49e72 | 2328 | TAINT_NOT; |
a0d0e21e | 2329 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2330 | if (MARK < SP) { |
2331 | if (popsub2) { | |
a8bba7fa | 2332 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2333 | if (SvTEMP(TOPs)) { |
2334 | *++newsp = SvREFCNT_inc(*SP); | |
2335 | FREETMPS; | |
2336 | sv_2mortal(*newsp); | |
959e3673 GS |
2337 | } |
2338 | else { | |
2339 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2340 | FREETMPS; |
959e3673 GS |
2341 | *++newsp = sv_mortalcopy(sv); |
2342 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2343 | } |
959e3673 GS |
2344 | } |
2345 | else | |
a29cdaf0 | 2346 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2347 | } |
2348 | else | |
a29cdaf0 | 2349 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2350 | } |
2351 | else | |
3280af22 | 2352 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2353 | } |
54310121 | 2354 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2355 | while (++MARK <= SP) { |
f86702cc | 2356 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2357 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2358 | TAINT_NOT; /* Each item is independent */ |
2359 | } | |
a0d0e21e | 2360 | } |
3280af22 | 2361 | PL_stack_sp = newsp; |
a0d0e21e | 2362 | |
5dd42e15 | 2363 | LEAVE; |
f86702cc | 2364 | /* Stack values are safe: */ |
2365 | if (popsub2) { | |
5dd42e15 | 2366 | cxstack_ix--; |
b0d9ce38 | 2367 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2368 | } |
b0d9ce38 | 2369 | else |
c445ea15 | 2370 | sv = NULL; |
3280af22 | 2371 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2372 | |
b0d9ce38 | 2373 | LEAVESUB(sv); |
8433848b | 2374 | if (clear_errsv) { |
ab69dbc2 | 2375 | CLEAR_ERRSV(); |
8433848b | 2376 | } |
f39bc417 | 2377 | return retop; |
a0d0e21e LW |
2378 | } |
2379 | ||
2380 | PP(pp_last) | |
2381 | { | |
27da23d5 | 2382 | dVAR; dSP; |
a0d0e21e | 2383 | I32 cxix; |
c09156bb | 2384 | register PERL_CONTEXT *cx; |
f86702cc | 2385 | I32 pop2 = 0; |
a0d0e21e | 2386 | I32 gimme; |
8772537c | 2387 | I32 optype; |
b263a1ad | 2388 | OP *nextop = NULL; |
a0d0e21e LW |
2389 | SV **newsp; |
2390 | PMOP *newpm; | |
a8bba7fa | 2391 | SV **mark; |
c445ea15 | 2392 | SV *sv = NULL; |
9d4ba2ae | 2393 | |
a0d0e21e | 2394 | |
533c011a | 2395 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2396 | cxix = dopoptoloop(cxstack_ix); |
2397 | if (cxix < 0) | |
a651a37d | 2398 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2399 | } |
2400 | else { | |
2401 | cxix = dopoptolabel(cPVOP->op_pv); | |
2402 | if (cxix < 0) | |
cea2e8a9 | 2403 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2404 | } |
2405 | if (cxix < cxstack_ix) | |
2406 | dounwind(cxix); | |
2407 | ||
2408 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2409 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2410 | mark = newsp; |
6b35e009 | 2411 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2412 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2413 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2414 | case CXt_LOOP_FOR: |
2415 | case CXt_LOOP_PLAIN: | |
2416 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2417 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2418 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2419 | break; |
f86702cc | 2420 | case CXt_SUB: |
f86702cc | 2421 | pop2 = CXt_SUB; |
f39bc417 | 2422 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2423 | break; |
f86702cc | 2424 | case CXt_EVAL: |
2425 | POPEVAL(cx); | |
f39bc417 | 2426 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2427 | break; |
7766f137 GS |
2428 | case CXt_FORMAT: |
2429 | POPFORMAT(cx); | |
f39bc417 | 2430 | nextop = cx->blk_sub.retop; |
7766f137 | 2431 | break; |
a0d0e21e | 2432 | default: |
cea2e8a9 | 2433 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2434 | } |
2435 | ||
a1f49e72 | 2436 | TAINT_NOT; |
a0d0e21e | 2437 | if (gimme == G_SCALAR) { |
f86702cc | 2438 | if (MARK < SP) |
2439 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2440 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2441 | else |
3280af22 | 2442 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2443 | } |
54310121 | 2444 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2445 | while (++MARK <= SP) { |
f86702cc | 2446 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2447 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2448 | TAINT_NOT; /* Each item is independent */ |
2449 | } | |
f86702cc | 2450 | } |
2451 | SP = newsp; | |
2452 | PUTBACK; | |
2453 | ||
5dd42e15 DM |
2454 | LEAVE; |
2455 | cxstack_ix--; | |
f86702cc | 2456 | /* Stack values are safe: */ |
2457 | switch (pop2) { | |
c6fdafd0 | 2458 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2459 | case CXt_LOOP_PLAIN: |
d01136d6 | 2460 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2461 | case CXt_LOOP_FOR: |
a8bba7fa | 2462 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2463 | LEAVE; |
f86702cc | 2464 | break; |
2465 | case CXt_SUB: | |
b0d9ce38 | 2466 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2467 | break; |
a0d0e21e | 2468 | } |
3280af22 | 2469 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2470 | |
b0d9ce38 | 2471 | LEAVESUB(sv); |
9d4ba2ae AL |
2472 | PERL_UNUSED_VAR(optype); |
2473 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2474 | return nextop; |
a0d0e21e LW |
2475 | } |
2476 | ||
2477 | PP(pp_next) | |
2478 | { | |
27da23d5 | 2479 | dVAR; |
a0d0e21e | 2480 | I32 cxix; |
c09156bb | 2481 | register PERL_CONTEXT *cx; |
85538317 | 2482 | I32 inner; |
a0d0e21e | 2483 | |
533c011a | 2484 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2485 | cxix = dopoptoloop(cxstack_ix); |
2486 | if (cxix < 0) | |
a651a37d | 2487 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2488 | } |
2489 | else { | |
2490 | cxix = dopoptolabel(cPVOP->op_pv); | |
2491 | if (cxix < 0) | |
cea2e8a9 | 2492 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2493 | } |
2494 | if (cxix < cxstack_ix) | |
2495 | dounwind(cxix); | |
2496 | ||
85538317 GS |
2497 | /* clear off anything above the scope we're re-entering, but |
2498 | * save the rest until after a possible continue block */ | |
2499 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2500 | TOPBLOCK(cx); |
85538317 GS |
2501 | if (PL_scopestack_ix < inner) |
2502 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2503 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2504 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2505 | } |
2506 | ||
2507 | PP(pp_redo) | |
2508 | { | |
27da23d5 | 2509 | dVAR; |
a0d0e21e | 2510 | I32 cxix; |
c09156bb | 2511 | register PERL_CONTEXT *cx; |
a0d0e21e | 2512 | I32 oldsave; |
a034e688 | 2513 | OP* redo_op; |
a0d0e21e | 2514 | |
533c011a | 2515 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2516 | cxix = dopoptoloop(cxstack_ix); |
2517 | if (cxix < 0) | |
a651a37d | 2518 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2519 | } |
2520 | else { | |
2521 | cxix = dopoptolabel(cPVOP->op_pv); | |
2522 | if (cxix < 0) | |
cea2e8a9 | 2523 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2524 | } |
2525 | if (cxix < cxstack_ix) | |
2526 | dounwind(cxix); | |
2527 | ||
022eaa24 | 2528 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2529 | if (redo_op->op_type == OP_ENTER) { |
2530 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2531 | cxstack_ix++; | |
2532 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2533 | redo_op = redo_op->op_next; | |
2534 | } | |
2535 | ||
a0d0e21e | 2536 | TOPBLOCK(cx); |
3280af22 | 2537 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2538 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2539 | FREETMPS; |
3a1b2b9e | 2540 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2541 | return redo_op; |
a0d0e21e LW |
2542 | } |
2543 | ||
0824fdcb | 2544 | STATIC OP * |
bfed75c6 | 2545 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2546 | { |
97aff369 | 2547 | dVAR; |
a0d0e21e | 2548 | OP **ops = opstack; |
bfed75c6 | 2549 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2550 | |
7918f24d NC |
2551 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2552 | ||
fc36a67e | 2553 | if (ops >= oplimit) |
cea2e8a9 | 2554 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2555 | if (o->op_type == OP_LEAVE || |
2556 | o->op_type == OP_SCOPE || | |
2557 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2558 | o->op_type == OP_LEAVESUB || |
11343788 | 2559 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2560 | { |
5dc0d613 | 2561 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2562 | if (ops >= oplimit) |
cea2e8a9 | 2563 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2564 | } |
c4aa4e48 | 2565 | *ops = 0; |
11343788 | 2566 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2567 | OP *kid; |
a0d0e21e | 2568 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2569 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2570 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2571 | const char *kid_label = CopLABEL(kCOP); | |
2572 | if (kid_label && strEQ(kid_label, label)) | |
2573 | return kid; | |
2574 | } | |
a0d0e21e | 2575 | } |
11343788 | 2576 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2577 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2578 | continue; |
ed8d0fe2 SM |
2579 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2580 | if (ops == opstack) | |
2581 | *ops++ = kid; | |
2582 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2583 | ops[-1]->op_type == OP_DBSTATE) | |
2584 | ops[-1] = kid; | |
2585 | else | |
2586 | *ops++ = kid; | |
2587 | } | |
155aba94 | 2588 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2589 | return o; |
a0d0e21e LW |
2590 | } |
2591 | } | |
c4aa4e48 | 2592 | *ops = 0; |
a0d0e21e LW |
2593 | return 0; |
2594 | } | |
2595 | ||
a0d0e21e LW |
2596 | PP(pp_goto) |
2597 | { | |
27da23d5 | 2598 | dVAR; dSP; |
cbbf8932 | 2599 | OP *retop = NULL; |
a0d0e21e | 2600 | I32 ix; |
c09156bb | 2601 | register PERL_CONTEXT *cx; |
fc36a67e | 2602 | #define GOTO_DEPTH 64 |
2603 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2604 | const char *label = NULL; |
bfed75c6 AL |
2605 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2606 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2607 | |
533c011a | 2608 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2609 | SV * const sv = POPs; |
a0d0e21e LW |
2610 | |
2611 | /* This egregious kludge implements goto &subroutine */ | |
2612 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2613 | I32 cxix; | |
c09156bb | 2614 | register PERL_CONTEXT *cx; |
ea726b52 | 2615 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2616 | SV** mark; |
2617 | I32 items = 0; | |
2618 | I32 oldsave; | |
b1464ded | 2619 | bool reified = 0; |
a0d0e21e | 2620 | |
e8f7dd13 | 2621 | retry: |
4aa0a1f7 | 2622 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2623 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2624 | if (gv) { |
7fc63493 | 2625 | GV *autogv; |
e8f7dd13 GS |
2626 | SV *tmpstr; |
2627 | /* autoloaded stub? */ | |
2628 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2629 | goto retry; | |
2630 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2631 | GvNAMELEN(gv), FALSE); | |
2632 | if (autogv && (cv = GvCV(autogv))) | |
2633 | goto retry; | |
2634 | tmpstr = sv_newmortal(); | |
c445ea15 | 2635 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2636 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2637 | } |
cea2e8a9 | 2638 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2639 | } |
2640 | ||
a0d0e21e | 2641 | /* First do some returnish stuff. */ |
b37c2d43 | 2642 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2643 | FREETMPS; |
a0d0e21e LW |
2644 | cxix = dopoptosub(cxstack_ix); |
2645 | if (cxix < 0) | |
cea2e8a9 | 2646 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2647 | if (cxix < cxstack_ix) |
2648 | dounwind(cxix); | |
2649 | TOPBLOCK(cx); | |
2d43a17f | 2650 | SPAGAIN; |
564abe23 | 2651 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2652 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2653 | if (CxREALEVAL(cx)) |
2654 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2655 | else | |
2656 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2657 | } |
9850bf21 RH |
2658 | else if (CxMULTICALL(cx)) |
2659 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2660 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2661 | /* put @_ back onto stack */ |
a0d0e21e | 2662 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2663 | |
93965878 | 2664 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2665 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2666 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2667 | SvREFCNT_dec(GvAV(PL_defgv)); |
2668 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2669 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2670 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2671 | if (AvREAL(av)) { |
b1464ded DM |
2672 | reified = 1; |
2673 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2674 | av = newAV(); |
2675 | av_extend(av, items-1); | |
11ca45c0 | 2676 | AvREIFY_only(av); |
ad64d0ec | 2677 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2678 | } |
a0d0e21e | 2679 | } |
aed2304a | 2680 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2681 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2682 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2683 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2684 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2685 | } |
a45cdc79 DM |
2686 | mark = SP; |
2687 | SP += items; | |
6b35e009 | 2688 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2689 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2690 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2691 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2692 | LEAVE_SCOPE(oldsave); |
2693 | ||
2694 | /* Now do some callish stuff. */ | |
2695 | SAVETMPS; | |
5023d17a | 2696 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2697 | if (CvISXSUB(cv)) { |
b37c2d43 | 2698 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2699 | SV **newsp; |
2700 | I32 gimme; | |
b1464ded DM |
2701 | if (reified) { |
2702 | I32 index; | |
2703 | for (index=0; index<items; index++) | |
2704 | sv_2mortal(SP[-index]); | |
2705 | } | |
1fa4e549 | 2706 | |
b37c2d43 AL |
2707 | /* XS subs don't have a CxSUB, so pop it */ |
2708 | POPBLOCK(cx, PL_curpm); | |
2709 | /* Push a mark for the start of arglist */ | |
2710 | PUSHMARK(mark); | |
2711 | PUTBACK; | |
2712 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2713 | LEAVE; |
5eff7df7 | 2714 | return retop; |
a0d0e21e LW |
2715 | } |
2716 | else { | |
b37c2d43 | 2717 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2718 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2719 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2720 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2721 | cx->cx_type = CXt_SUB; |
b150fb22 | 2722 | } |
a0d0e21e | 2723 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2724 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2725 | |
a0d0e21e LW |
2726 | CvDEPTH(cv)++; |
2727 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2728 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2729 | else { |
2b9dff67 | 2730 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2731 | sub_crush_depth(cv); |
26019298 | 2732 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2733 | } |
fd617465 DM |
2734 | SAVECOMPPAD(); |
2735 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2736 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2737 | { |
502c6561 | 2738 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2739 | |
3280af22 | 2740 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2741 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2742 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2743 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2744 | |
2745 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2746 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2747 | if (AvARRAY(av) != ary) { |
2748 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2749 | AvARRAY(av) = ary; |
a0d0e21e LW |
2750 | } |
2751 | if (items >= AvMAX(av) + 1) { | |
2752 | AvMAX(av) = items - 1; | |
2753 | Renew(ary,items+1,SV*); | |
2754 | AvALLOC(av) = ary; | |
9c6bc640 | 2755 | AvARRAY(av) = ary; |
a0d0e21e LW |
2756 | } |
2757 | } | |
a45cdc79 | 2758 | ++mark; |
a0d0e21e | 2759 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2760 | AvFILLp(av) = items - 1; |
d8b46c1b | 2761 | assert(!AvREAL(av)); |
b1464ded DM |
2762 | if (reified) { |
2763 | /* transfer 'ownership' of refcnts to new @_ */ | |
2764 | AvREAL_on(av); | |
2765 | AvREIFY_off(av); | |
2766 | } | |
a0d0e21e LW |
2767 | while (items--) { |
2768 | if (*mark) | |
2769 | SvTEMP_off(*mark); | |
2770 | mark++; | |
2771 | } | |
2772 | } | |
491527d0 | 2773 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2774 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2775 | if (PERLDB_GOTO) { |
b96d8cd9 | 2776 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2777 | if (gotocv) { |
2778 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2779 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2780 | PL_stack_sp--; |
2781 | } | |
491527d0 | 2782 | } |
1ce6579f | 2783 | } |
a0d0e21e LW |
2784 | RETURNOP(CvSTART(cv)); |
2785 | } | |
2786 | } | |
1614b0e3 | 2787 | else { |
0510663f | 2788 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2789 | if (!(do_dump || *label)) |
cea2e8a9 | 2790 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2791 | } |
a0d0e21e | 2792 | } |
533c011a | 2793 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2794 | if (! do_dump) |
cea2e8a9 | 2795 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2796 | } |
2797 | else | |
2798 | label = cPVOP->op_pv; | |
2799 | ||
f410a211 NC |
2800 | PERL_ASYNC_CHECK(); |
2801 | ||
a0d0e21e | 2802 | if (label && *label) { |
cbbf8932 | 2803 | OP *gotoprobe = NULL; |
3b2447bc | 2804 | bool leaving_eval = FALSE; |
33d34e4c | 2805 | bool in_block = FALSE; |
cbbf8932 | 2806 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2807 | |
2808 | /* find label */ | |
2809 | ||
d4c19fe8 | 2810 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2811 | *enterops = 0; |
2812 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2813 | cx = &cxstack[ix]; | |
6b35e009 | 2814 | switch (CxTYPE(cx)) { |
a0d0e21e | 2815 | case CXt_EVAL: |
3b2447bc | 2816 | leaving_eval = TRUE; |
971ecbe6 | 2817 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2818 | gotoprobe = (last_eval_cx ? |
2819 | last_eval_cx->blk_eval.old_eval_root : | |
2820 | PL_eval_root); | |
2821 | last_eval_cx = cx; | |
9c5794fe RH |
2822 | break; |
2823 | } | |
2824 | /* else fall through */ | |
c6fdafd0 | 2825 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2826 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2827 | case CXt_LOOP_FOR: |
2828 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2829 | case CXt_GIVEN: |
2830 | case CXt_WHEN: | |
a0d0e21e LW |
2831 | gotoprobe = cx->blk_oldcop->op_sibling; |
2832 | break; | |
2833 | case CXt_SUBST: | |
2834 | continue; | |
2835 | case CXt_BLOCK: | |
33d34e4c | 2836 | if (ix) { |
a0d0e21e | 2837 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2838 | in_block = TRUE; |
2839 | } else | |
3280af22 | 2840 | gotoprobe = PL_main_root; |
a0d0e21e | 2841 | break; |
b3933176 | 2842 | case CXt_SUB: |
9850bf21 | 2843 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2844 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2845 | break; | |
2846 | } | |
2847 | /* FALL THROUGH */ | |
7766f137 | 2848 | case CXt_FORMAT: |
0a753a76 | 2849 | case CXt_NULL: |
a651a37d | 2850 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2851 | default: |
2852 | if (ix) | |
cea2e8a9 | 2853 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2854 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2855 | break; |
2856 | } | |
2b597662 GS |
2857 | if (gotoprobe) { |
2858 | retop = dofindlabel(gotoprobe, label, | |
2859 | enterops, enterops + GOTO_DEPTH); | |
2860 | if (retop) | |
2861 | break; | |
eae48c89 Z |
2862 | if (gotoprobe->op_sibling && |
2863 | gotoprobe->op_sibling->op_type == OP_UNSTACK && | |
2864 | gotoprobe->op_sibling->op_sibling) { | |
2865 | retop = dofindlabel(gotoprobe->op_sibling->op_sibling, | |
2866 | label, enterops, enterops + GOTO_DEPTH); | |
2867 | if (retop) | |
2868 | break; | |
2869 | } | |
2b597662 | 2870 | } |
3280af22 | 2871 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2872 | } |
2873 | if (!retop) | |
cea2e8a9 | 2874 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2875 | |
3b2447bc RH |
2876 | /* if we're leaving an eval, check before we pop any frames |
2877 | that we're not going to punt, otherwise the error | |
2878 | won't be caught */ | |
2879 | ||
2880 | if (leaving_eval && *enterops && enterops[1]) { | |
2881 | I32 i; | |
2882 | for (i = 1; enterops[i]; i++) | |
2883 | if (enterops[i]->op_type == OP_ENTERITER) | |
2884 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2885 | } | |
2886 | ||
b500e03b GG |
2887 | if (*enterops && enterops[1]) { |
2888 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2889 | if (enterops[i]) | |
2890 | deprecate("\"goto\" to jump into a construct"); | |
2891 | } | |
2892 | ||
a0d0e21e LW |
2893 | /* pop unwanted frames */ |
2894 | ||
2895 | if (ix < cxstack_ix) { | |
2896 | I32 oldsave; | |
2897 | ||
2898 | if (ix < 0) | |
2899 | ix = 0; | |
2900 | dounwind(ix); | |
2901 | TOPBLOCK(cx); | |
3280af22 | 2902 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2903 | LEAVE_SCOPE(oldsave); |
2904 | } | |
2905 | ||
2906 | /* push wanted frames */ | |
2907 | ||
748a9306 | 2908 | if (*enterops && enterops[1]) { |
0bd48802 | 2909 | OP * const oldop = PL_op; |
33d34e4c AE |
2910 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2911 | for (; enterops[ix]; ix++) { | |
533c011a | 2912 | PL_op = enterops[ix]; |
84902520 TB |
2913 | /* Eventually we may want to stack the needed arguments |
2914 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2915 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2916 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 2917 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 2918 | } |
533c011a | 2919 | PL_op = oldop; |
a0d0e21e LW |
2920 | } |
2921 | } | |
2922 | ||
2923 | if (do_dump) { | |
a5f75d66 | 2924 | #ifdef VMS |
6b88bc9c | 2925 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2926 | #endif |
3280af22 NIS |
2927 | PL_restartop = retop; |
2928 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2929 | |
2930 | my_unexec(); | |
2931 | ||
3280af22 NIS |
2932 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2933 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2934 | } |
2935 | ||
2936 | RETURNOP(retop); | |
2937 | } | |
2938 | ||
2939 | PP(pp_exit) | |
2940 | { | |
97aff369 | 2941 | dVAR; |
39644a26 | 2942 | dSP; |
a0d0e21e LW |
2943 | I32 anum; |
2944 | ||
2945 | if (MAXARG < 1) | |
2946 | anum = 0; | |
ff0cee69 | 2947 | else { |
a0d0e21e | 2948 | anum = SvIVx(POPs); |
d98f61e7 GS |
2949 | #ifdef VMS |
2950 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2951 | anum = 0; |
96e176bf | 2952 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2953 | #endif |
2954 | } | |
cc3604b1 | 2955 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2956 | #ifdef PERL_MAD |
2957 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2958 | if (anum || !(PL_minus_c && PL_madskills)) | |
2959 | my_exit(anum); | |
2960 | #else | |
a0d0e21e | 2961 | my_exit(anum); |
81d86705 | 2962 | #endif |
3280af22 | 2963 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2964 | RETURN; |
2965 | } | |
2966 | ||
a0d0e21e LW |
2967 | /* Eval. */ |
2968 | ||
0824fdcb | 2969 | STATIC void |
cea2e8a9 | 2970 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2971 | { |
504618e9 | 2972 | const char *s = SvPVX_const(sv); |
890ce7af | 2973 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2974 | I32 line = 1; |
a0d0e21e | 2975 | |
7918f24d NC |
2976 | PERL_ARGS_ASSERT_SAVE_LINES; |
2977 | ||
a0d0e21e | 2978 | while (s && s < send) { |
f54cb97a | 2979 | const char *t; |
b9f83d2f | 2980 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2981 | |
1d963ff3 | 2982 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2983 | if (t) |
2984 | t++; | |
2985 | else | |
2986 | t = send; | |
2987 | ||
2988 | sv_setpvn(tmpstr, s, t - s); | |
2989 | av_store(array, line++, tmpstr); | |
2990 | s = t; | |
2991 | } | |
2992 | } | |
2993 | ||
22f16304 RU |
2994 | /* |
2995 | =for apidoc docatch | |
2996 | ||
2997 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
2998 | ||
2999 | 0 is used as continue inside eval, | |
3000 | ||
3001 | 3 is used for a die caught by an inner eval - continue inner loop | |
3002 | ||
3003 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
3004 | establish a local jmpenv to handle exception traps. | |
3005 | ||
3006 | =cut | |
3007 | */ | |
0824fdcb | 3008 | STATIC OP * |
cea2e8a9 | 3009 | S_docatch(pTHX_ OP *o) |
1e422769 | 3010 | { |
97aff369 | 3011 | dVAR; |
6224f72b | 3012 | int ret; |
06b5626a | 3013 | OP * const oldop = PL_op; |
db36c5a1 | 3014 | dJMPENV; |
1e422769 | 3015 | |
1e422769 | 3016 | #ifdef DEBUGGING |
54310121 | 3017 | assert(CATCH_GET == TRUE); |
1e422769 | 3018 | #endif |
312caa8e | 3019 | PL_op = o; |
8bffa5f8 | 3020 | |
14dd3ad8 | 3021 | JMPENV_PUSH(ret); |
6224f72b | 3022 | switch (ret) { |
312caa8e | 3023 | case 0: |
abd70938 DM |
3024 | assert(cxstack_ix >= 0); |
3025 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3026 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 3027 | redo_body: |
85aaa934 | 3028 | CALLRUNOPS(aTHX); |
312caa8e CS |
3029 | break; |
3030 | case 3: | |
8bffa5f8 | 3031 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
3032 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
3033 | PL_restartjmpenv = NULL; | |
312caa8e CS |
3034 | PL_op = PL_restartop; |
3035 | PL_restartop = 0; | |
3036 | goto redo_body; | |
3037 | } | |
3038 | /* FALL THROUGH */ | |
3039 | default: | |
14dd3ad8 | 3040 | JMPENV_POP; |
533c011a | 3041 | PL_op = oldop; |
6224f72b | 3042 | JMPENV_JUMP(ret); |
1e422769 | 3043 | /* NOTREACHED */ |
1e422769 | 3044 | } |
14dd3ad8 | 3045 | JMPENV_POP; |
533c011a | 3046 | PL_op = oldop; |
5f66b61c | 3047 | return NULL; |
1e422769 | 3048 | } |
3049 | ||
ee23ad3b NC |
3050 | /* James Bond: Do you expect me to talk? |
3051 | Auric Goldfinger: No, Mr. Bond. I expect you to die. | |
3052 | ||
3053 | This code is an ugly hack, doesn't work with lexicals in subroutines that are | |
3054 | called more than once, and is only used by regcomp.c, for (?{}) blocks. | |
3055 | ||
3056 | Currently it is not used outside the core code. Best if it stays that way. | |
d59a8b3e NC |
3057 | |
3058 | Hence it's now deprecated, and will be removed. | |
ee23ad3b | 3059 | */ |
c277df42 | 3060 | OP * |
bfed75c6 | 3061 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
3062 | /* sv Text to convert to OP tree. */ |
3063 | /* startop op_free() this to undo. */ | |
3064 | /* code Short string id of the caller. */ | |
3065 | { | |
d59a8b3e NC |
3066 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
3067 | return Perl_sv_compile_2op_is_broken(aTHX_ sv, startop, code, padp); | |
3068 | } | |
3069 | ||
3070 | /* Don't use this. It will go away without warning once the regexp engine is | |
3071 | refactored not to use it. */ | |
3072 | OP * | |
3073 | Perl_sv_compile_2op_is_broken(pTHX_ SV *sv, OP **startop, const char *code, | |
3074 | PAD **padp) | |
3075 | { | |
27da23d5 | 3076 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
3077 | PERL_CONTEXT *cx; |
3078 | SV **newsp; | |
b094c71d | 3079 | I32 gimme = G_VOID; |
c277df42 IZ |
3080 | I32 optype; |
3081 | OP dummy; | |
83ee9e09 GS |
3082 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
3083 | char *tmpbuf = tbuf; | |
c277df42 | 3084 | char *safestr; |
a3985cdc | 3085 | int runtime; |
601f1833 | 3086 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 3087 | STRLEN len; |
634d6919 | 3088 | bool need_catch; |
c277df42 | 3089 | |
d59a8b3e | 3090 | PERL_ARGS_ASSERT_SV_COMPILE_2OP_IS_BROKEN; |
7918f24d | 3091 | |
d343c3ef | 3092 | ENTER_with_name("eval"); |
8eaa0acf | 3093 | lex_start(sv, NULL, 0); |
c277df42 IZ |
3094 | SAVETMPS; |
3095 | /* switch to eval mode */ | |
3096 | ||
923e4eb5 | 3097 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 3098 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 3099 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 3100 | } |
83ee9e09 | 3101 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 3102 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
3103 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
3104 | code, (unsigned long)++PL_evalseq, | |
3105 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
3106 | tmpbuf = SvPVX(sv); | |
fc009855 | 3107 | len = SvCUR(sv); |
83ee9e09 GS |
3108 | } |
3109 | else | |
d9fad198 JH |
3110 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
3111 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 3112 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3113 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3114 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3115 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
3116 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3117 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3118 | (i.e. before run-time proper). To work around the coredump that | |
3119 | ensues, we always turn GvMULTI_on for any globals that were | |
3120 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3121 | safestr = savepvn(tmpbuf, len); |
3122 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3123 | SAVEHINTS(); |
d1ca3daa | 3124 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3125 | PL_opsave = op; |
d1ca3daa | 3126 | #else |
7766f137 | 3127 | SAVEVPTR(PL_op); |
d1ca3daa | 3128 | #endif |
c277df42 | 3129 | |
a3985cdc | 3130 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 3131 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 3132 | if (runtime) |
558b4424 | 3133 | { |
d819b83a | 3134 | runcv = find_runcv(NULL); |
a3985cdc | 3135 | |
558b4424 FC |
3136 | /* At run time, we have to fetch the hints from PL_curcop. */ |
3137 | PL_hints = PL_curcop->cop_hints; | |
3138 | if (PL_hints & HINT_LOCALIZE_HH) { | |
3139 | /* SAVEHINTS created a new HV in PL_hintgv, which we | |
3140 | need to GC */ | |
3141 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
3142 | GvHV(PL_hintgv) = | |
3143 | refcounted_he_chain_2hv(PL_curcop->cop_hints_hash, 0); | |
3144 | hv_magic(GvHV(PL_hintgv), NULL, PERL_MAGIC_hints); | |
3145 | } | |
3146 | SAVECOMPILEWARNINGS(); | |
3147 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); | |
3148 | cophh_free(CopHINTHASH_get(&PL_compiling)); | |
3149 | /* XXX Does this need to avoid copying a label? */ | |
3150 | PL_compiling.cop_hints_hash | |
3151 | = cophh_copy(PL_curcop->cop_hints_hash); | |
3152 | } | |
3153 | ||
533c011a | 3154 | PL_op = &dummy; |
13b51b79 | 3155 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 3156 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 3157 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 3158 | PUSHEVAL(cx, 0); |
634d6919 GG |
3159 | need_catch = CATCH_GET; |
3160 | CATCH_SET(TRUE); | |
a3985cdc DM |
3161 | |
3162 | if (runtime) | |
410be5db | 3163 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 3164 | else |
410be5db | 3165 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
634d6919 | 3166 | CATCH_SET(need_catch); |
13b51b79 | 3167 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 3168 | POPEVAL(cx); |
c277df42 IZ |
3169 | |
3170 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 3171 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
f3548bdc | 3172 | /* XXX DAPM do this properly one year */ |
502c6561 | 3173 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 3174 | LEAVE_with_name("eval"); |
923e4eb5 | 3175 | if (IN_PERL_COMPILETIME) |
623e6609 | 3176 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 3177 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3178 | op = PL_opsave; |
d1ca3daa | 3179 | #endif |
9d4ba2ae AL |
3180 | PERL_UNUSED_VAR(newsp); |
3181 | PERL_UNUSED_VAR(optype); | |
3182 | ||
410be5db | 3183 | return PL_eval_start; |
c277df42 IZ |
3184 | } |
3185 | ||
a3985cdc DM |
3186 | |
3187 | /* | |
3188 | =for apidoc find_runcv | |
3189 | ||
3190 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3191 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3192 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3193 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3194 | than in the scope of the debugger itself). |
a3985cdc DM |
3195 | |
3196 | =cut | |
3197 | */ | |
3198 | ||
3199 | CV* | |
d819b83a | 3200 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3201 | { |
97aff369 | 3202 | dVAR; |
a3985cdc | 3203 | PERL_SI *si; |
a3985cdc | 3204 | |
d819b83a DM |
3205 | if (db_seqp) |
3206 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3207 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3208 | I32 ix; |
a3985cdc | 3209 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3210 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3211 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3212 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3213 | /* skip DB:: code */ |
3214 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3215 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3216 | continue; | |
3217 | } | |
3218 | return cv; | |
3219 | } | |
a3985cdc DM |
3220 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3221 | return PL_compcv; | |
3222 | } | |
3223 | } | |
3224 | return PL_main_cv; | |
3225 | } | |
3226 | ||
3227 | ||
27e90453 DM |
3228 | /* Run yyparse() in a setjmp wrapper. Returns: |
3229 | * 0: yyparse() successful | |
3230 | * 1: yyparse() failed | |
3231 | * 3: yyparse() died | |
3232 | */ | |
3233 | STATIC int | |
28ac2b49 | 3234 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3235 | { |
3236 | int ret; | |
3237 | dJMPENV; | |
3238 | ||
3239 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3240 | JMPENV_PUSH(ret); | |
3241 | switch (ret) { | |
3242 | case 0: | |
28ac2b49 | 3243 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3244 | break; |
3245 | case 3: | |
3246 | break; | |
3247 | default: | |
3248 | JMPENV_POP; | |
3249 | JMPENV_JUMP(ret); | |
3250 | /* NOTREACHED */ | |
3251 | } | |
3252 | JMPENV_POP; | |
3253 | return ret; | |
3254 | } | |
3255 | ||
3256 | ||
a3985cdc DM |
3257 | /* Compile a require/do, an eval '', or a /(?{...})/. |
3258 | * In the last case, startop is non-null, and contains the address of | |
3259 | * a pointer that should be set to the just-compiled code. | |
3260 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3261 | * Returns a bool indicating whether the compile was successful; if so, |
3262 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3263 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3264 | */ |
3265 | ||
410be5db | 3266 | STATIC bool |
a3985cdc | 3267 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3268 | { |
27da23d5 | 3269 | dVAR; dSP; |
46c461b5 | 3270 | OP * const saveop = PL_op; |
27e90453 DM |
3271 | bool in_require = (saveop && saveop->op_type == OP_REQUIRE); |
3272 | int yystatus; | |
a0d0e21e | 3273 | |
27e90453 | 3274 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3275 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3276 | : EVAL_INEVAL); | |
a0d0e21e | 3277 | |
1ce6579f | 3278 | PUSHMARK(SP); |
3279 | ||
3280af22 | 3280 | SAVESPTR(PL_compcv); |
ea726b52 | 3281 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3282 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3283 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3284 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3285 | ||
a3985cdc | 3286 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3287 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3288 | |
dd2155a4 | 3289 | /* set up a scratch pad */ |
a0d0e21e | 3290 | |
dd2155a4 | 3291 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3292 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3293 | |
07055b4c | 3294 | |
81d86705 NC |
3295 | if (!PL_madskills) |
3296 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3297 | |
a0d0e21e LW |
3298 | /* make sure we compile in the right package */ |
3299 | ||
ed094faf | 3300 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3301 | SAVESPTR(PL_curstash); |
ed094faf | 3302 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3303 | } |
3c10abe3 | 3304 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3305 | SAVESPTR(PL_beginav); |
3306 | PL_beginav = newAV(); | |
3307 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3308 | SAVESPTR(PL_unitcheckav); |
3309 | PL_unitcheckav = newAV(); | |
3310 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3311 | |
81d86705 | 3312 | #ifdef PERL_MAD |
9da243ce | 3313 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3314 | PL_madskills = 0; |
3315 | #endif | |
3316 | ||
a0d0e21e LW |
3317 | /* try to compile it */ |
3318 | ||
5f66b61c | 3319 | PL_eval_root = NULL; |
3280af22 | 3320 | PL_curcop = &PL_compiling; |
fc15ae8f | 3321 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3322 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3323 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3324 | else |
3325 | CLEAR_ERRSV(); | |
27e90453 | 3326 | |
a88d97bf | 3327 | CALL_BLOCK_HOOKS(bhk_eval, saveop); |
52db365a | 3328 | |
27e90453 DM |
3329 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3330 | * so honour CATCH_GET and trap it here if necessary */ | |
3331 | ||
28ac2b49 | 3332 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3333 | |
3334 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3335 | SV **newsp; /* Used by POPBLOCK. */ |
b6494f15 | 3336 | PERL_CONTEXT *cx = NULL; |
27e90453 | 3337 | I32 optype; /* Used by POPEVAL. */ |
b6494f15 | 3338 | SV *namesv = NULL; |
9d4ba2ae | 3339 | const char *msg; |
bfed75c6 | 3340 | |
27e90453 DM |
3341 | PERL_UNUSED_VAR(newsp); |
3342 | PERL_UNUSED_VAR(optype); | |
3343 | ||
c86ffc32 DM |
3344 | /* note that if yystatus == 3, then the EVAL CX block has already |
3345 | * been popped, and various vars restored */ | |
533c011a | 3346 | PL_op = saveop; |
27e90453 | 3347 | if (yystatus != 3) { |
c86ffc32 DM |
3348 | if (PL_eval_root) { |
3349 | op_free(PL_eval_root); | |
3350 | PL_eval_root = NULL; | |
3351 | } | |
27e90453 DM |
3352 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
3353 | if (!startop) { | |
3354 | POPBLOCK(cx,PL_curpm); | |
3355 | POPEVAL(cx); | |
b6494f15 | 3356 | namesv = cx->blk_eval.old_namesv; |
27e90453 | 3357 | } |
c277df42 | 3358 | } |
27e90453 DM |
3359 | if (yystatus != 3) |
3360 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ | |
9d4ba2ae AL |
3361 | |
3362 | msg = SvPVx_nolen_const(ERRSV); | |
27e90453 | 3363 | if (in_require) { |
b6494f15 VP |
3364 | if (!cx) { |
3365 | /* If cx is still NULL, it means that we didn't go in the | |
3366 | * POPEVAL branch. */ | |
3367 | cx = &cxstack[cxstack_ix]; | |
3368 | assert(CxTYPE(cx) == CXt_EVAL); | |
3369 | namesv = cx->blk_eval.old_namesv; | |
3370 | } | |
3371 | (void)hv_store(GvHVn(PL_incgv), | |
3372 | SvPVX_const(namesv), SvCUR(namesv), | |
3373 | &PL_sv_undef, 0); | |
58d3fd3b SH |
3374 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3375 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3376 | } |
3377 | else if (startop) { | |
27e90453 DM |
3378 | if (yystatus != 3) { |
3379 | POPBLOCK(cx,PL_curpm); | |
3380 | POPEVAL(cx); | |
3381 | } | |
5a844595 GS |
3382 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3383 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3384 | } |
9d7f88dd | 3385 | else { |
9d7f88dd | 3386 | if (!*msg) { |
6502358f | 3387 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3388 | } |
3389 | } | |
410be5db DM |
3390 | PUSHs(&PL_sv_undef); |
3391 | PUTBACK; | |
3392 | return FALSE; | |
a0d0e21e | 3393 | } |
57843af0 | 3394 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3395 | if (startop) { |
3280af22 | 3396 | *startop = PL_eval_root; |
c277df42 | 3397 | } else |
3280af22 | 3398 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3399 | |
3400 | /* Set the context for this new optree. | |
021f53de GG |
3401 | * Propagate the context from the eval(). */ |
3402 | if ((gimme & G_WANT) == G_VOID) | |
3280af22 | 3403 | scalarvoid(PL_eval_root); |
7df0357e | 3404 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3405 | list(PL_eval_root); |
a0d0e21e | 3406 | else |
3280af22 | 3407 | scalar(PL_eval_root); |
a0d0e21e LW |
3408 | |
3409 | DEBUG_x(dump_eval()); | |
3410 | ||
55497cff | 3411 | /* Register with debugger: */ |
6482a30d | 3412 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3413 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3414 | if (cv) { |
3415 | dSP; | |
924508f0 | 3416 | PUSHMARK(SP); |
ad64d0ec | 3417 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3418 | PUTBACK; |
ad64d0ec | 3419 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3420 | } |
3421 | } | |
3422 | ||
8ed49485 FC |
3423 | if (PL_unitcheckav) { |
3424 | OP *es = PL_eval_start; | |
3c10abe3 | 3425 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3426 | PL_eval_start = es; |
3427 | } | |
3c10abe3 | 3428 | |
a0d0e21e LW |
3429 | /* compiled okay, so do it */ |
3430 | ||
3280af22 NIS |
3431 | CvDEPTH(PL_compcv) = 1; |
3432 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3433 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3434 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3435 | |
410be5db DM |
3436 | PUTBACK; |
3437 | return TRUE; | |
a0d0e21e LW |
3438 | } |
3439 | ||
a6c40364 | 3440 | STATIC PerlIO * |
282b29ee | 3441 | S_check_type_and_open(pTHX_ SV *name) |
ce8abf5f SP |
3442 | { |
3443 | Stat_t st; | |
282b29ee NC |
3444 | const char *p = SvPV_nolen_const(name); |
3445 | const int st_rc = PerlLIO_stat(p, &st); | |
df528165 | 3446 | |
7918f24d NC |
3447 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3448 | ||
6b845e56 | 3449 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3450 | return NULL; |
ce8abf5f SP |
3451 | } |
3452 | ||
ccb84406 NC |
3453 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
3454 | return PerlIO_openn(aTHX_ NULL, PERL_SCRIPT_MODE, -1, 0, 0, NULL, 1, &name); | |
3455 | #else | |
282b29ee | 3456 | return PerlIO_open(p, PERL_SCRIPT_MODE); |
ccb84406 | 3457 | #endif |
ce8abf5f SP |
3458 | } |
3459 | ||
75c20bac | 3460 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3461 | STATIC PerlIO * |
282b29ee | 3462 | S_doopen_pm(pTHX_ SV *name) |
b295d113 | 3463 | { |
282b29ee NC |
3464 | STRLEN namelen; |
3465 | const char *p = SvPV_const(name, namelen); | |
b295d113 | 3466 | |
7918f24d NC |
3467 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3468 | ||
282b29ee NC |
3469 | if (namelen > 3 && memEQs(p + namelen - 3, 3, ".pm")) { |
3470 | SV *const pmcsv = sv_mortalcopy(name); | |
a6c40364 | 3471 | Stat_t pmcstat; |
50b8ed39 | 3472 | |
282b29ee | 3473 | sv_catpvn(pmcsv, "c", 1); |
50b8ed39 | 3474 | |
282b29ee NC |
3475 | if (PerlLIO_stat(SvPV_nolen_const(pmcsv), &pmcstat) >= 0) |
3476 | return check_type_and_open(pmcsv); | |
a6c40364 | 3477 | } |
282b29ee | 3478 | return check_type_and_open(name); |
75c20bac | 3479 | } |
7925835c | 3480 | #else |
282b29ee | 3481 | # define doopen_pm(name) check_type_and_open(name) |
7925835c | 3482 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3483 | |
a0d0e21e LW |
3484 | PP(pp_require) |
3485 | { | |
27da23d5 | 3486 | dVAR; dSP; |
c09156bb | 3487 | register PERL_CONTEXT *cx; |
a0d0e21e | 3488 | SV *sv; |
5c144d81 | 3489 | const char *name; |
6132ea6c | 3490 | STRLEN len; |
4492be7a JM |
3491 | char * unixname; |
3492 | STRLEN unixlen; | |
62f5ad7a | 3493 | #ifdef VMS |
4492be7a | 3494 | int vms_unixname = 0; |
62f5ad7a | 3495 | #endif |
c445ea15 AL |
3496 | const char *tryname = NULL; |
3497 | SV *namesv = NULL; | |
f54cb97a | 3498 | const I32 gimme = GIMME_V; |
bbed91b5 | 3499 | int filter_has_file = 0; |
c445ea15 | 3500 | PerlIO *tryrsfp = NULL; |
34113e50 | 3501 | SV *filter_cache = NULL; |
c445ea15 AL |
3502 | SV *filter_state = NULL; |
3503 | SV *filter_sub = NULL; | |
3504 | SV *hook_sv = NULL; | |
6ec9efec JH |
3505 | SV *encoding; |
3506 | OP *op; | |
a0d0e21e LW |
3507 | |
3508 | sv = POPs; | |
d7aa5382 | 3509 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d086148c | 3510 | sv = sv_2mortal(new_version(sv)); |
d7aa5382 | 3511 | if (!sv_derived_from(PL_patchlevel, "version")) |
ac0e6a2f | 3512 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3513 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3514 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3515 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
e753e3b1 FC |
3516 | SVfARG(sv_2mortal(vnormal(sv))), |
3517 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3518 | ); | |
468aa647 RGS |
3519 | } |
3520 | else { | |
d1029faa JP |
3521 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3522 | I32 first = 0; | |
3523 | AV *lav; | |
3524 | SV * const req = SvRV(sv); | |
85fbaab2 | 3525 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3526 | |
3527 | /* get the left hand term */ | |
502c6561 | 3528 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3529 | |
3530 | first = SvIV(*av_fetch(lav,0,0)); | |
3531 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3532 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3533 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3534 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3535 | ) { | |
3536 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
9d056fb0 FC |
3537 | "%"SVf", stopped", |
3538 | SVfARG(sv_2mortal(vnormal(req))), | |
3539 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3540 | ); | |
d1029faa JP |
3541 | } |
3542 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3543 | SV *hintsv; |
d1029faa JP |
3544 | I32 second = 0; |
3545 | ||
3546 | if (av_len(lav)>=1) | |
3547 | second = SvIV(*av_fetch(lav,1,0)); | |
3548 | ||
3549 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3550 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3551 | (int)first, (int)second); | |
d1029faa JP |
3552 | upg_version(hintsv, TRUE); |
3553 | ||
3554 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3555 | "--this is only %"SVf", stopped", | |
1be7d6f3 FC |
3556 | SVfARG(sv_2mortal(vnormal(req))), |
3557 | SVfARG(sv_2mortal(vnormal(sv_2mortal(hintsv)))), | |
3558 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3559 | ); | |
d1029faa JP |
3560 | } |
3561 | } | |
468aa647 | 3562 | } |
d7aa5382 | 3563 | |
7dfde25d | 3564 | RETPUSHYES; |
a0d0e21e | 3565 | } |
5c144d81 | 3566 | name = SvPV_const(sv, len); |
6132ea6c | 3567 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3568 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3569 | TAINT_PROPER("require"); |
4492be7a JM |
3570 | |
3571 | ||
3572 | #ifdef VMS | |
3573 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3574 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3575 | * can result in a module being pulled in more than once. | |
3576 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3577 | * name can be translated to UNIX. | |
3578 | */ | |
3579 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3580 | unixlen = strlen(unixname); | |
3581 | vms_unixname = 1; | |
3582 | } | |
3583 | else | |
3584 | #endif | |
3585 | { | |
3586 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3587 | * through. | |
3588 | */ | |
3589 | unixname = (char *) name; | |
3590 | unixlen = len; | |
3591 | } | |
44f8325f | 3592 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3593 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3594 | unixname, unixlen, 0); | |
44f8325f AL |
3595 | if ( svp ) { |
3596 | if (*svp != &PL_sv_undef) | |
3597 | RETPUSHYES; | |
3598 | else | |
087b5369 RD |
3599 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3600 | "Compilation failed in require", unixname); | |
44f8325f | 3601 | } |
4d8b06f1 | 3602 | } |
a0d0e21e LW |
3603 | |
3604 | /* prepare to compile file */ | |
3605 | ||
be4b629d | 3606 | if (path_is_absolute(name)) { |
282b29ee | 3607 | /* At this point, name is SvPVX(sv) */ |
46fc3d4c | 3608 | tryname = name; |
282b29ee | 3609 | tryrsfp = doopen_pm(sv); |
bf4acbe4 | 3610 | } |
be4b629d | 3611 | if (!tryrsfp) { |
44f8325f | 3612 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3613 | I32 i; |
748a9306 | 3614 | #ifdef VMS |
4492be7a | 3615 | if (vms_unixname) |
46fc3d4c | 3616 | #endif |
3617 | { | |
d0328fd7 | 3618 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3619 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3620 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3621 | |
ad64d0ec | 3622 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3623 | mg_get(dirsv); |
bbed91b5 KF |
3624 | if (SvROK(dirsv)) { |
3625 | int count; | |
a3b58a99 | 3626 | SV **svp; |
bbed91b5 KF |
3627 | SV *loader = dirsv; |
3628 | ||
e14e2dc8 NC |
3629 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3630 | && !sv_isobject(loader)) | |
3631 | { | |
502c6561 | 3632 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3633 | } |
3634 | ||
b900a521 | 3635 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3636 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3637 | tryname = SvPVX_const(namesv); |
c445ea15 | 3638 | tryrsfp = NULL; |
bbed91b5 | 3639 | |
d343c3ef | 3640 | ENTER_with_name("call_INC"); |
bbed91b5 KF |
3641 | SAVETMPS; |
3642 | EXTEND(SP, 2); | |
3643 | ||
3644 | PUSHMARK(SP); | |
3645 | PUSHs(dirsv); | |
3646 | PUSHs(sv); | |
3647 | PUTBACK; | |
e982885c NC |
3648 | if (sv_isobject(loader)) |
3649 | count = call_method("INC", G_ARRAY); | |
3650 | else | |
3651 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3652 | SPAGAIN; |
3653 | ||
3654 | if (count > 0) { | |
3655 | int i = 0; | |
3656 | SV *arg; | |
3657 | ||
3658 | SP -= count - 1; | |
3659 | arg = SP[i++]; | |
3660 | ||
34113e50 NC |
3661 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3662 | && !isGV_with_GP(SvRV(arg))) { | |
3663 | filter_cache = SvRV(arg); | |
74c765eb | 3664 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3665 | |
3666 | if (i < count) { | |
3667 | arg = SP[i++]; | |
3668 | } | |
3669 | } | |
3670 | ||
6e592b3a | 3671 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3672 | arg = SvRV(arg); |
3673 | } | |
3674 | ||
6e592b3a | 3675 | if (isGV_with_GP(arg)) { |
159b6efe | 3676 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3677 | |
3678 | ++filter_has_file; | |
3679 | ||
3680 | if (io) { | |
3681 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3682 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3683 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3684 | } |
0f7de14d NC |
3685 | IoIFP(io) = NULL; |
3686 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3687 | } |
3688 | ||
3689 | if (i < count) { | |
3690 | arg = SP[i++]; | |
3691 | } | |
3692 | } | |
3693 | ||
3694 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3695 | filter_sub = arg; | |
74c765eb | 3696 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3697 | |
3698 | if (i < count) { | |
3699 | filter_state = SP[i]; | |
b37c2d43 | 3700 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3701 | } |
34113e50 | 3702 | } |
bbed91b5 | 3703 | |
34113e50 NC |
3704 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3705 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3706 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3707 | } |
1d06aecd | 3708 | SP--; |
bbed91b5 KF |
3709 | } |
3710 | ||
3711 | PUTBACK; | |
3712 | FREETMPS; | |
d343c3ef | 3713 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3714 | |
c5f55552 NC |
3715 | /* Adjust file name if the hook has set an %INC entry. |
3716 | This needs to happen after the FREETMPS above. */ | |
3717 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3718 | if (svp) | |
3719 | tryname = SvPV_nolen_const(*svp); | |
3720 | ||
bbed91b5 | 3721 | if (tryrsfp) { |
89ccab8c | 3722 | hook_sv = dirsv; |
bbed91b5 KF |
3723 | break; |
3724 | } | |
3725 | ||
3726 | filter_has_file = 0; | |
34113e50 NC |
3727 | if (filter_cache) { |
3728 | SvREFCNT_dec(filter_cache); | |
3729 | filter_cache = NULL; | |
3730 | } | |
bbed91b5 KF |
3731 | if (filter_state) { |
3732 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3733 | filter_state = NULL; |
bbed91b5 KF |
3734 | } |
3735 | if (filter_sub) { | |
3736 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3737 | filter_sub = NULL; |
bbed91b5 KF |
3738 | } |
3739 | } | |
3740 | else { | |
be4b629d | 3741 | if (!path_is_absolute(name) |
be4b629d | 3742 | ) { |
b640a14a NC |
3743 | const char *dir; |
3744 | STRLEN dirlen; | |
3745 | ||
3746 | if (SvOK(dirsv)) { | |
3747 | dir = SvPV_const(dirsv, dirlen); | |
3748 | } else { | |
3749 | dir = ""; | |
3750 | dirlen = 0; | |
3751 | } | |
3752 | ||
e37778c2 | 3753 | #ifdef VMS |
bbed91b5 | 3754 | char *unixdir; |
c445ea15 | 3755 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3756 | continue; |
3757 | sv_setpv(namesv, unixdir); | |
3758 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3759 | #else |
3760 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3761 | if (PL_origfilename[0] && |
3762 | PL_origfilename[1] == ':' && | |
3763 | !(dir[0] && dir[1] == ':')) | |
3764 | Perl_sv_setpvf(aTHX_ namesv, | |
3765 | "%c:%s\\%s", | |
3766 | PL_origfilename[0], | |
3767 | dir, name); | |
3768 | else | |
3769 | Perl_sv_setpvf(aTHX_ namesv, | |
3770 | "%s\\%s", | |
3771 | dir, name); | |
e37778c2 | 3772 | # else |
b640a14a NC |
3773 | /* The equivalent of |
3774 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3775 | but without the need to parse the format string, or | |
3776 | call strlen on either pointer, and with the correct | |
3777 | allocation up front. */ | |
3778 | { | |
3779 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3780 | ||
3781 | memcpy(tmp, dir, dirlen); | |
3782 | tmp +=dirlen; | |
3783 | *tmp++ = '/'; | |
3784 | /* name came from an SV, so it will have a '\0' at the | |
3785 | end that we can copy as part of this memcpy(). */ | |
3786 | memcpy(tmp, name, len + 1); | |
3787 | ||
3788 | SvCUR_set(namesv, dirlen + len + 1); | |
282b29ee | 3789 | SvPOK_on(namesv); |
b640a14a | 3790 | } |
27da23d5 | 3791 | # endif |
bf4acbe4 | 3792 | #endif |
bbed91b5 | 3793 | TAINT_PROPER("require"); |
349d4f2f | 3794 | tryname = SvPVX_const(namesv); |
282b29ee | 3795 | tryrsfp = doopen_pm(namesv); |
bbed91b5 | 3796 | if (tryrsfp) { |
e63be746 RGS |
3797 | if (tryname[0] == '.' && tryname[1] == '/') { |
3798 | ++tryname; | |
3799 | while (*++tryname == '/'); | |
3800 | } | |
bbed91b5 KF |
3801 | break; |
3802 | } | |
ff806af2 DM |
3803 | else if (errno == EMFILE) |
3804 | /* no point in trying other paths if out of handles */ | |
3805 | break; | |
be4b629d | 3806 | } |
46fc3d4c | 3807 | } |
a0d0e21e LW |
3808 | } |
3809 | } | |
3810 | } | |
b2ef6d44 | 3811 | sv_2mortal(namesv); |
a0d0e21e | 3812 | if (!tryrsfp) { |
533c011a | 3813 | if (PL_op->op_type == OP_REQUIRE) { |
e31de809 | 3814 | if(errno == EMFILE) { |
c9d5e35e NC |
3815 | /* diag_listed_as: Can't locate %s */ |
3816 | DIE(aTHX_ "Can't locate %s: %s", name, Strerror(errno)); | |
e31de809 SP |
3817 | } else { |
3818 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3819 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3820 | I32 i; |
c9d5e35e NC |
3821 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
3822 | for (i = 0; i <= AvFILL(ar); i++) { | |
3823 | sv_catpvs(inc, " "); | |
3824 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
3825 | } | |
3826 | ||
3827 | /* diag_listed_as: Can't locate %s */ | |
3828 | DIE(aTHX_ | |
3829 | "Can't locate %s in @INC%s%s (@INC contains:%" SVf ")", | |
3830 | name, | |
686c4ca0 NC |
3831 | (memEQ(name + len - 2, ".h", 3) |
3832 | ? " (change .h to .ph maybe?) (did you run h2ph?)" : ""), | |
3833 | (memEQ(name + len - 3, ".ph", 4) | |
c9d5e35e NC |
3834 | ? " (did you run h2ph?)" : ""), |
3835 | inc | |
3836 | ); | |
3837 | } | |
2683423c | 3838 | } |
c9d5e35e | 3839 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
3840 | } |
3841 | ||
3842 | RETPUSHUNDEF; | |
3843 | } | |
d8bfb8bd | 3844 | else |
93189314 | 3845 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3846 | |
3847 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3848 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3849 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3850 | if (!hook_sv) { |
4492be7a | 3851 | (void)hv_store(GvHVn(PL_incgv), |
b2ef6d44 | 3852 | unixname, unixlen, newSVpv(tryname,0),0); |
44f8325f | 3853 | } else { |
4492be7a | 3854 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3855 | if (!svp) |
4492be7a JM |
3856 | (void)hv_store(GvHVn(PL_incgv), |
3857 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3858 | } |
a0d0e21e | 3859 | |
d343c3ef | 3860 | ENTER_with_name("eval"); |
a0d0e21e | 3861 | SAVETMPS; |
b2ef6d44 FC |
3862 | SAVECOPFILE_FREE(&PL_compiling); |
3863 | CopFILE_set(&PL_compiling, tryname); | |
8eaa0acf | 3864 | lex_start(NULL, tryrsfp, 0); |
e50aee73 | 3865 | |
b3ac6de7 | 3866 | SAVEHINTS(); |
3280af22 | 3867 | PL_hints = 0; |
f747ebd6 | 3868 | hv_clear(GvHV(PL_hintgv)); |
27eaf14c | 3869 | |
68da3b2f | 3870 | SAVECOMPILEWARNINGS(); |
0453d815 | 3871 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3872 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3873 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3874 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3875 | else |
d3a7d8c7 | 3876 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3877 | |
34113e50 | 3878 | if (filter_sub || filter_cache) { |
4464f08e NC |
3879 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
3880 | than hanging another SV from it. In turn, filter_add() optionally | |
3881 | takes the SV to use as the filter (or creates a new SV if passed | |
3882 | NULL), so simply pass in whatever value filter_cache has. */ | |
3883 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 3884 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
3885 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
3886 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
3887 | } |
3888 | ||
3889 | /* switch to eval mode */ | |
a0d0e21e | 3890 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 3891 | PUSHEVAL(cx, name); |
f39bc417 | 3892 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3893 | |
57843af0 GS |
3894 | SAVECOPLINE(&PL_compiling); |
3895 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3896 | |
3897 | PUTBACK; | |
6ec9efec JH |
3898 | |
3899 | /* Store and reset encoding. */ | |
3900 | encoding = PL_encoding; | |
c445ea15 | 3901 | PL_encoding = NULL; |
6ec9efec | 3902 | |
410be5db DM |
3903 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
3904 | op = DOCATCH(PL_eval_start); | |
3905 | else | |
3906 | op = PL_op->op_next; | |
bfed75c6 | 3907 | |
6ec9efec JH |
3908 | /* Restore encoding. */ |
3909 | PL_encoding = encoding; | |
3910 | ||
3911 | return op; | |
a0d0e21e LW |
3912 | } |
3913 | ||
996c9baa VP |
3914 | /* This is a op added to hold the hints hash for |
3915 | pp_entereval. The hash can be modified by the code | |
3916 | being eval'ed, so we return a copy instead. */ | |
3917 | ||
3918 | PP(pp_hintseval) | |
3919 | { | |
3920 | dVAR; | |
3921 | dSP; | |
defdfed5 | 3922 | mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
3923 | RETURN; |
3924 | } | |
3925 | ||
3926 | ||
a0d0e21e LW |
3927 | PP(pp_entereval) |
3928 | { | |
27da23d5 | 3929 | dVAR; dSP; |
c09156bb | 3930 | register PERL_CONTEXT *cx; |
0d863452 | 3931 | SV *sv; |
890ce7af | 3932 | const I32 gimme = GIMME_V; |
fd06b02c | 3933 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 | 3934 | char tbuf[TYPE_DIGITS(long) + 12]; |
78da7625 | 3935 | bool saved_delete = FALSE; |
83ee9e09 | 3936 | char *tmpbuf = tbuf; |
a0d0e21e | 3937 | STRLEN len; |
a3985cdc | 3938 | CV* runcv; |
d819b83a | 3939 | U32 seq; |
c445ea15 | 3940 | HV *saved_hh = NULL; |
e389bba9 | 3941 | |
0d863452 | 3942 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 3943 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 RH |
3944 | } |
3945 | sv = POPs; | |
895b760f DM |
3946 | if (!SvPOK(sv)) { |
3947 | /* make sure we've got a plain PV (no overload etc) before testing | |
3948 | * for taint. Making a copy here is probably overkill, but better | |
3949 | * safe than sorry */ | |
0479a84a NC |
3950 | STRLEN len; |
3951 | const char * const p = SvPV_const(sv, len); | |
3952 | ||
3953 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
895b760f | 3954 | } |
a0d0e21e | 3955 | |
af2d3def | 3956 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3957 | TAINT_PROPER("eval"); |
a0d0e21e | 3958 | |
d343c3ef | 3959 | ENTER_with_name("eval"); |
8eaa0acf | 3960 | lex_start(sv, NULL, 0); |
748a9306 | 3961 | SAVETMPS; |
ac27b0f5 | 3962 | |
a0d0e21e LW |
3963 | /* switch to eval mode */ |
3964 | ||
83ee9e09 | 3965 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3966 | SV * const temp_sv = sv_newmortal(); |
3967 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3968 | (unsigned long)++PL_evalseq, |
3969 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3970 | tmpbuf = SvPVX(temp_sv); |
3971 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3972 | } |
3973 | else | |
d9fad198 | 3974 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3975 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3976 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3977 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3978 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3979 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3980 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3981 | (i.e. before run-time proper). To work around the coredump that | |
3982 | ensues, we always turn GvMULTI_on for any globals that were | |
3983 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
b3ac6de7 | 3984 | SAVEHINTS(); |
533c011a | 3985 | PL_hints = PL_op->op_targ; |
cda55376 AV |
3986 | if (saved_hh) { |
3987 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3988 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
0d863452 | 3989 | GvHV(PL_hintgv) = saved_hh; |
cda55376 | 3990 | } |
68da3b2f | 3991 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3992 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
20439bc7 | 3993 | cophh_free(CopHINTHASH_get(&PL_compiling)); |
d6747b7a | 3994 | if (Perl_fetch_cop_label(aTHX_ PL_curcop, NULL, NULL)) { |
47550813 NC |
3995 | /* The label, if present, is the first entry on the chain. So rather |
3996 | than writing a blank label in front of it (which involves an | |
3997 | allocation), just use the next entry in the chain. */ | |
3998 | PL_compiling.cop_hints_hash | |
20439bc7 | 3999 | = cophh_copy(PL_curcop->cop_hints_hash->refcounted_he_next); |
47550813 | 4000 | /* Check the assumption that this removed the label. */ |
d6747b7a | 4001 | assert(Perl_fetch_cop_label(aTHX_ &PL_compiling, NULL, NULL) == NULL); |
47550813 NC |
4002 | } |
4003 | else | |
20439bc7 | 4004 | PL_compiling.cop_hints_hash = cophh_copy(PL_curcop->cop_hints_hash); |
d819b83a DM |
4005 | /* special case: an eval '' executed within the DB package gets lexically |
4006 | * placed in the first non-DB CV rather than the current CV - this | |
4007 | * allows the debugger to execute code, find lexicals etc, in the | |
4008 | * scope of the code being debugged. Passing &seq gets find_runcv | |
4009 | * to do the dirty work for us */ | |
4010 | runcv = find_runcv(&seq); | |
a0d0e21e | 4011 | |
6b35e009 | 4012 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 4013 | PUSHEVAL(cx, 0); |
f39bc417 | 4014 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
4015 | |
4016 | /* prepare to compile string */ | |
4017 | ||
a44e3ce2 | 4018 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 4019 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
78da7625 FC |
4020 | else { |
4021 | char *const safestr = savepvn(tmpbuf, len); | |
4022 | SAVEDELETE(PL_defstash, safestr, len); | |
4023 | saved_delete = TRUE; | |
4024 | } | |
4025 | ||
a0d0e21e | 4026 | PUTBACK; |
f9bddea7 NC |
4027 | |
4028 | if (doeval(gimme, NULL, runcv, seq)) { | |
4029 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ | |
4030 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4031 | : PERLDB_SAVESRC_NOSUBS) { | |
4032 | /* Retain the filegv we created. */ | |
78da7625 | 4033 | } else if (!saved_delete) { |
f9bddea7 NC |
4034 | char *const safestr = savepvn(tmpbuf, len); |
4035 | SAVEDELETE(PL_defstash, safestr, len); | |
4036 | } | |
4037 | return DOCATCH(PL_eval_start); | |
4038 | } else { | |
486ec47a | 4039 | /* We have already left the scope set up earlier thanks to the LEAVE |
f9bddea7 | 4040 | in doeval(). */ |
eb044b10 NC |
4041 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4042 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4043 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 | 4044 | /* Retain the filegv we created. */ |
7857f360 | 4045 | } else if (!saved_delete) { |
f9bddea7 NC |
4046 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); |
4047 | } | |
4048 | return PL_op->op_next; | |
4049 | } | |
a0d0e21e LW |
4050 | } |
4051 | ||
4052 | PP(pp_leaveeval) | |
4053 | { | |
27da23d5 | 4054 | dVAR; dSP; |
a0d0e21e LW |
4055 | register SV **mark; |
4056 | SV **newsp; | |
4057 | PMOP *newpm; | |
4058 | I32 gimme; | |
c09156bb | 4059 | register PERL_CONTEXT *cx; |
a0d0e21e | 4060 | OP *retop; |
06b5626a | 4061 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e | 4062 | I32 optype; |
b6494f15 | 4063 | SV *namesv; |
a0d0e21e LW |
4064 | |
4065 | POPBLOCK(cx,newpm); | |
4066 | POPEVAL(cx); | |
b6494f15 | 4067 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 4068 | retop = cx->blk_eval.retop; |
a0d0e21e | 4069 | |
a1f49e72 | 4070 | TAINT_NOT; |
54310121 | 4071 | if (gimme == G_VOID) |
4072 | MARK = newsp; | |
4073 | else if (gimme == G_SCALAR) { | |
4074 | MARK = newsp + 1; | |
4075 | if (MARK <= SP) { | |
4076 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
4077 | *MARK = TOPs; | |
4078 | else | |
4079 | *MARK = sv_mortalcopy(TOPs); | |
4080 | } | |
a0d0e21e | 4081 | else { |
54310121 | 4082 | MEXTEND(mark,0); |
3280af22 | 4083 | *MARK = &PL_sv_undef; |
a0d0e21e | 4084 | } |
a7ec2b44 | 4085 | SP = MARK; |
a0d0e21e LW |
4086 | } |
4087 | else { | |
a1f49e72 CS |
4088 | /* in case LEAVE wipes old return values */ |
4089 | for (mark = newsp + 1; mark <= SP; mark++) { | |
4090 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 4091 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
4092 | TAINT_NOT; /* Each item is independent */ |
4093 | } | |
4094 | } | |
a0d0e21e | 4095 | } |
3280af22 | 4096 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4097 | |
4fdae800 | 4098 | #ifdef DEBUGGING |
3280af22 | 4099 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 4100 | #endif |
3280af22 | 4101 | CvDEPTH(PL_compcv) = 0; |
4fdae800 | 4102 | |
1ce6579f | 4103 | if (optype == OP_REQUIRE && |
924508f0 | 4104 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 4105 | { |
1ce6579f | 4106 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
4107 | (void)hv_delete(GvHVn(PL_incgv), |
4108 | SvPVX_const(namesv), SvCUR(namesv), | |
4109 | G_DISCARD); | |
4110 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", | |
4111 | SVfARG(namesv)); | |
c5df3096 | 4112 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
4113 | } |
4114 | else { | |
d343c3ef | 4115 | LEAVE_with_name("eval"); |
8433848b | 4116 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 4117 | CLEAR_ERRSV(); |
8433848b | 4118 | } |
a0d0e21e | 4119 | } |
a0d0e21e LW |
4120 | |
4121 | RETURNOP(retop); | |
4122 | } | |
4123 | ||
edb2152a NC |
4124 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
4125 | close to the related Perl_create_eval_scope. */ | |
4126 | void | |
4127 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 4128 | { |
edb2152a NC |
4129 | SV **newsp; |
4130 | PMOP *newpm; | |
4131 | I32 gimme; | |
c09156bb | 4132 | register PERL_CONTEXT *cx; |
edb2152a NC |
4133 | I32 optype; |
4134 | ||
4135 | POPBLOCK(cx,newpm); | |
4136 | POPEVAL(cx); | |
4137 | PL_curpm = newpm; | |
d343c3ef | 4138 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
4139 | PERL_UNUSED_VAR(newsp); |
4140 | PERL_UNUSED_VAR(gimme); | |
4141 | PERL_UNUSED_VAR(optype); | |
4142 | } | |
a0d0e21e | 4143 | |
edb2152a NC |
4144 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
4145 | also needed by Perl_fold_constants. */ | |
4146 | PERL_CONTEXT * | |
4147 | Perl_create_eval_scope(pTHX_ U32 flags) | |
4148 | { | |
4149 | PERL_CONTEXT *cx; | |
4150 | const I32 gimme = GIMME_V; | |
4151 | ||
d343c3ef | 4152 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
4153 | SAVETMPS; |
4154 | ||
edb2152a | 4155 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 4156 | PUSHEVAL(cx, 0); |
a0d0e21e | 4157 | |
faef0170 | 4158 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
4159 | if (flags & G_KEEPERR) |
4160 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
4161 | else |
4162 | CLEAR_ERRSV(); | |
edb2152a NC |
4163 | if (flags & G_FAKINGEVAL) { |
4164 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
4165 | } | |
4166 | return cx; | |
4167 | } | |
4168 | ||
4169 | PP(pp_entertry) | |
4170 | { | |
4171 | dVAR; | |
df528165 | 4172 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4173 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4174 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4175 | } |
4176 | ||
4177 | PP(pp_leavetry) | |
4178 | { | |
27da23d5 | 4179 | dVAR; dSP; |
a0d0e21e LW |
4180 | SV **newsp; |
4181 | PMOP *newpm; | |
4182 | I32 gimme; | |
c09156bb | 4183 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
4184 | I32 optype; |
4185 | ||
4186 | POPBLOCK(cx,newpm); | |
4187 | POPEVAL(cx); | |
9d4ba2ae | 4188 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4189 | |
a1f49e72 | 4190 | TAINT_NOT; |
54310121 | 4191 | if (gimme == G_VOID) |
4192 | SP = newsp; | |
4193 | else if (gimme == G_SCALAR) { | |
c445ea15 | 4194 | register SV **mark; |
54310121 | 4195 | MARK = newsp + 1; |
4196 | if (MARK <= SP) { | |
4197 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
4198 | *MARK = TOPs; | |
4199 | else | |
4200 | *MARK = sv_mortalcopy(TOPs); | |
4201 | } | |
a0d0e21e | 4202 | else { |
54310121 | 4203 | MEXTEND(mark,0); |
3280af22 | 4204 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
4205 | } |
4206 | SP = MARK; | |
4207 | } | |
4208 | else { | |
a1f49e72 | 4209 | /* in case LEAVE wipes old return values */ |
c445ea15 | 4210 | register SV **mark; |
a1f49e72 CS |
4211 | for (mark = newsp + 1; mark <= SP; mark++) { |
4212 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 4213 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
4214 | TAINT_NOT; /* Each item is independent */ |
4215 | } | |
4216 | } | |
a0d0e21e | 4217 | } |
3280af22 | 4218 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4219 | |
d343c3ef | 4220 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4221 | CLEAR_ERRSV(); |
745cf2ff | 4222 | RETURN; |
a0d0e21e LW |
4223 | } |
4224 | ||
0d863452 RH |
4225 | PP(pp_entergiven) |
4226 | { | |
4227 | dVAR; dSP; | |
4228 | register PERL_CONTEXT *cx; | |
4229 | const I32 gimme = GIMME_V; | |
4230 | ||
d343c3ef | 4231 | ENTER_with_name("given"); |
0d863452 RH |
4232 | SAVETMPS; |
4233 | ||
bb74b0ee | 4234 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); |
0d863452 RH |
4235 | |
4236 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4237 | PUSHGIVEN(cx); | |
4238 | ||
4239 | RETURN; | |
4240 | } | |
4241 | ||
4242 | PP(pp_leavegiven) | |
4243 | { | |
4244 | dVAR; dSP; | |
4245 | register PERL_CONTEXT *cx; | |
4246 | I32 gimme; | |
4247 | SV **newsp; | |
4248 | PMOP *newpm; | |
96a5add6 | 4249 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4250 | |
4251 | POPBLOCK(cx,newpm); | |
4252 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4253 | |
25b991bf VP |
4254 | TAINT_NOT; |
4255 | if (gimme == G_VOID) | |
4256 | SP = newsp; | |
4257 | else if (gimme == G_SCALAR) { | |
4258 | register SV **mark; | |
4259 | MARK = newsp + 1; | |
4260 | if (MARK <= SP) { | |
4261 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
4262 | *MARK = TOPs; | |
4263 | else | |
4264 | *MARK = sv_mortalcopy(TOPs); | |
4265 | } | |
4266 | else { | |
4267 | MEXTEND(mark,0); | |
4268 | *MARK = &PL_sv_undef; | |
4269 | } | |
4270 | SP = MARK; | |
4271 | } | |
4272 | else { | |
4273 | /* in case LEAVE wipes old return values */ | |
4274 | register SV **mark; | |
4275 | for (mark = newsp + 1; mark <= SP; mark++) { | |
4276 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
4277 | *mark = sv_mortalcopy(*mark); | |
4278 | TAINT_NOT; /* Each item is independent */ | |
4279 | } | |
4280 | } | |
4281 | } | |
4282 | PL_curpm = newpm; /* Don't pop $1 et al till now */ | |
0d863452 | 4283 | |
d343c3ef | 4284 | LEAVE_with_name("given"); |
25b991bf | 4285 | RETURN; |
0d863452 RH |
4286 | } |
4287 | ||
4288 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4289 | STATIC PMOP * |
84679df5 | 4290 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 4291 | { |
97aff369 | 4292 | dVAR; |
0d863452 | 4293 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
4294 | |
4295 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4296 | ||
d6106309 | 4297 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4298 | |
0d863452 | 4299 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4300 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4301 | SAVEOP(); |
4302 | return matcher; | |
4303 | } | |
4304 | ||
4136a0f7 | 4305 | STATIC bool |
0d863452 RH |
4306 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4307 | { | |
97aff369 | 4308 | dVAR; |
0d863452 | 4309 | dSP; |
7918f24d NC |
4310 | |
4311 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4312 | |
4313 | PL_op = (OP *) matcher; | |
4314 | XPUSHs(sv); | |
4315 | PUTBACK; | |
897d3989 | 4316 | (void) Perl_pp_match(aTHX); |
0d863452 RH |
4317 | SPAGAIN; |
4318 | return (SvTRUEx(POPs)); | |
4319 | } | |
4320 | ||
4136a0f7 | 4321 | STATIC void |
0d863452 RH |
4322 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4323 | { | |
97aff369 | 4324 | dVAR; |
7918f24d NC |
4325 | |
4326 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4327 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4328 | |
0d863452 | 4329 | FREETMPS; |
d343c3ef | 4330 | LEAVE_with_name("matcher"); |
0d863452 RH |
4331 | } |
4332 | ||
4333 | /* Do a smart match */ | |
4334 | PP(pp_smartmatch) | |
4335 | { | |
d7c0d282 | 4336 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
a0714e2c | 4337 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
4338 | } |
4339 | ||
4b021f5f RGS |
4340 | /* This version of do_smartmatch() implements the |
4341 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4342 | */ |
4136a0f7 | 4343 | STATIC OP * |
0d863452 RH |
4344 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
4345 | { | |
97aff369 | 4346 | dVAR; |
0d863452 RH |
4347 | dSP; |
4348 | ||
41e726ac | 4349 | bool object_on_left = FALSE; |
0d863452 RH |
4350 | SV *e = TOPs; /* e is for 'expression' */ |
4351 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4352 | |
6f1401dc DM |
4353 | /* Take care only to invoke mg_get() once for each argument. |
4354 | * Currently we do this by copying the SV if it's magical. */ | |
4355 | if (d) { | |
4356 | if (SvGMAGICAL(d)) | |
4357 | d = sv_mortalcopy(d); | |
4358 | } | |
4359 | else | |
4360 | d = &PL_sv_undef; | |
4361 | ||
4362 | assert(e); | |
4363 | if (SvGMAGICAL(e)) | |
4364 | e = sv_mortalcopy(e); | |
4365 | ||
2c9d2554 | 4366 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4367 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4368 | SV * tmpsv; |
4369 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4370 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4371 | ||
4372 | tmpsv = amagic_call(d, e, smart_amg, 0); | |
7c41e62e RGS |
4373 | if (tmpsv) { |
4374 | SPAGAIN; | |
4375 | (void)POPs; | |
4376 | SETs(tmpsv); | |
4377 | RETURN; | |
4378 | } | |
d7c0d282 | 4379 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4380 | } |
62ec5f58 | 4381 | |
0d863452 RH |
4382 | SP -= 2; /* Pop the values */ |
4383 | ||
0d863452 | 4384 | |
b0138e99 | 4385 | /* ~~ undef */ |
62ec5f58 | 4386 | if (!SvOK(e)) { |
d7c0d282 | 4387 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4388 | if (SvOK(d)) |
33570f8b RGS |
4389 | RETPUSHNO; |
4390 | else | |
62ec5f58 | 4391 | RETPUSHYES; |
33570f8b | 4392 | } |
e67b97bd | 4393 | |
d7c0d282 DM |
4394 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4395 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4396 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4397 | } |
41e726ac RGS |
4398 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4399 | object_on_left = TRUE; | |
62ec5f58 | 4400 | |
b0138e99 | 4401 | /* ~~ sub */ |
a4a197da | 4402 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4403 | I32 c; |
41e726ac RGS |
4404 | if (object_on_left) { |
4405 | goto sm_any_sub; /* Treat objects like scalars */ | |
4406 | } | |
4407 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4408 | /* Test sub truth for each key */ |
4409 | HE *he; | |
4410 | bool andedresults = TRUE; | |
4411 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4412 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4413 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4414 | if (numkeys == 0) |
07edf497 | 4415 | RETPUSHYES; |
a4a197da | 4416 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4417 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4418 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4419 | SAVETMPS; |
4420 | PUSHMARK(SP); | |
4421 | PUSHs(hv_iterkeysv(he)); | |
4422 | PUTBACK; | |
4423 | c = call_sv(e, G_SCALAR); | |
4424 | SPAGAIN; | |
4425 | if (c == 0) | |
4426 | andedresults = FALSE; | |
4427 | else | |
4428 | andedresults = SvTRUEx(POPs) && andedresults; | |
4429 | FREETMPS; | |
d343c3ef | 4430 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4431 | } |
4432 | if (andedresults) | |
4433 | RETPUSHYES; | |
4434 | else | |
4435 | RETPUSHNO; | |
4436 | } | |
4437 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4438 | /* Test sub truth for each element */ | |
4439 | I32 i; | |
4440 | bool andedresults = TRUE; | |
4441 | AV *av = (AV*) SvRV(d); | |
4442 | const I32 len = av_len(av); | |
d7c0d282 | 4443 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4444 | if (len == -1) |
07edf497 | 4445 | RETPUSHYES; |
a4a197da RGS |
4446 | for (i = 0; i <= len; ++i) { |
4447 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4448 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4449 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4450 | SAVETMPS; |
4451 | PUSHMARK(SP); | |
4452 | if (svp) | |
4453 | PUSHs(*svp); | |
4454 | PUTBACK; | |
4455 | c = call_sv(e, G_SCALAR); | |
4456 | SPAGAIN; | |
4457 | if (c == 0) | |
4458 | andedresults = FALSE; | |
4459 | else | |
4460 | andedresults = SvTRUEx(POPs) && andedresults; | |
4461 | FREETMPS; | |
d343c3ef | 4462 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4463 | } |
4464 | if (andedresults) | |
4465 | RETPUSHYES; | |
4466 | else | |
4467 | RETPUSHNO; | |
4468 | } | |
4469 | else { | |
41e726ac | 4470 | sm_any_sub: |
d7c0d282 | 4471 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4472 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4473 | SAVETMPS; |
4474 | PUSHMARK(SP); | |
4475 | PUSHs(d); | |
4476 | PUTBACK; | |
4477 | c = call_sv(e, G_SCALAR); | |
4478 | SPAGAIN; | |
4479 | if (c == 0) | |
4480 | PUSHs(&PL_sv_no); | |
4481 | else if (SvTEMP(TOPs)) | |
4482 | SvREFCNT_inc_void(TOPs); | |
4483 | FREETMPS; | |
d343c3ef | 4484 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4485 | RETURN; |
4486 | } | |
0d863452 | 4487 | } |
b0138e99 | 4488 | /* ~~ %hash */ |
61a621c6 | 4489 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4490 | if (object_on_left) { |
4491 | goto sm_any_hash; /* Treat objects like scalars */ | |
4492 | } | |
4493 | else if (!SvOK(d)) { | |
d7c0d282 | 4494 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4495 | RETPUSHNO; |
4496 | } | |
4497 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4498 | /* Check that the key-sets are identical */ |
4499 | HE *he; | |
61a621c6 | 4500 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4501 | bool tied = FALSE; |
4502 | bool other_tied = FALSE; | |
4503 | U32 this_key_count = 0, | |
4504 | other_key_count = 0; | |
33ed63a2 | 4505 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4506 | |
4507 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4508 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4509 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4510 | tied = TRUE; |
4511 | } | |
ad64d0ec | 4512 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4513 | HV * const temp = other_hv; |
33ed63a2 RGS |
4514 | other_hv = hv; |
4515 | hv = temp; | |
0d863452 RH |
4516 | tied = TRUE; |
4517 | } | |
ad64d0ec | 4518 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4519 | other_tied = TRUE; |
4520 | ||
33ed63a2 | 4521 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4522 | RETPUSHNO; |
4523 | ||
4524 | /* The hashes have the same number of keys, so it suffices | |
4525 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4526 | (void) hv_iterinit(hv); |
4527 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4528 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4529 | |
4530 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4531 | ++ this_key_count; |
4532 | ||
b15feb55 | 4533 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4534 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4535 | RETPUSHNO; |
4536 | } | |
4537 | } | |
4538 | ||
4539 | if (other_tied) { | |
4540 | (void) hv_iterinit(other_hv); | |
4541 | while ( hv_iternext(other_hv) ) | |
4542 | ++other_key_count; | |
4543 | } | |
4544 | else | |
4545 | other_key_count = HvUSEDKEYS(other_hv); | |
4546 | ||
4547 | if (this_key_count != other_key_count) | |
4548 | RETPUSHNO; | |
4549 | else | |
4550 | RETPUSHYES; | |
4551 | } | |
61a621c6 RGS |
4552 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4553 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4554 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4555 | I32 i; |
33ed63a2 | 4556 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4557 | |
d7c0d282 | 4558 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4559 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4560 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4561 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4562 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4563 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4564 | RETPUSHYES; |
4565 | } | |
0d863452 | 4566 | } |
71b0fb34 | 4567 | RETPUSHNO; |
0d863452 | 4568 | } |
a566f585 | 4569 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4570 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4571 | sm_regex_hash: |
4572 | { | |
4573 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4574 | HE *he; | |
4575 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4576 | ||
4577 | (void) hv_iterinit(hv); | |
4578 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4579 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4580 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4581 | (void) hv_iterinit(hv); | |
4582 | destroy_matcher(matcher); | |
4583 | RETPUSHYES; | |
4584 | } | |
0d863452 | 4585 | } |
ea0c2dbd RGS |
4586 | destroy_matcher(matcher); |
4587 | RETPUSHNO; | |
0d863452 | 4588 | } |
0d863452 RH |
4589 | } |
4590 | else { | |
41e726ac | 4591 | sm_any_hash: |
d7c0d282 | 4592 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4593 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4594 | RETPUSHYES; |
4595 | else | |
4596 | RETPUSHNO; | |
4597 | } | |
4598 | } | |
b0138e99 RGS |
4599 | /* ~~ @array */ |
4600 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4601 | if (object_on_left) { |
4602 | goto sm_any_array; /* Treat objects like scalars */ | |
4603 | } | |
4604 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4605 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4606 | const I32 other_len = av_len(other_av) + 1; | |
4607 | I32 i; | |
4608 | ||
d7c0d282 | 4609 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4610 | for (i = 0; i < other_len; ++i) { |
4611 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4612 | |
4613 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4614 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4615 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4616 | RETPUSHYES; |
4617 | } | |
4618 | } | |
4619 | RETPUSHNO; | |
4620 | } | |
4621 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4622 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4623 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4624 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4625 | RETPUSHNO; |
4626 | else { | |
4627 | I32 i; | |
c445ea15 | 4628 | const I32 other_len = av_len(other_av); |
0d863452 | 4629 | |
a0714e2c | 4630 | if (NULL == seen_this) { |
0d863452 | 4631 | seen_this = newHV(); |
ad64d0ec | 4632 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4633 | } |
a0714e2c | 4634 | if (NULL == seen_other) { |
6bc991bf | 4635 | seen_other = newHV(); |
ad64d0ec | 4636 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4637 | } |
4638 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4639 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4640 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4641 | ||
0d863452 | 4642 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4643 | if ((this_elem && SvOK(*this_elem)) |
4644 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4645 | RETPUSHNO; |
4646 | } | |
365c4e3d RGS |
4647 | else if (hv_exists_ent(seen_this, |
4648 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4649 | hv_exists_ent(seen_other, | |
4650 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4651 | { |
4652 | if (*this_elem != *other_elem) | |
4653 | RETPUSHNO; | |
4654 | } | |
4655 | else { | |
04fe65b0 RGS |
4656 | (void)hv_store_ent(seen_this, |
4657 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4658 | &PL_sv_undef, 0); | |
4659 | (void)hv_store_ent(seen_other, | |
4660 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4661 | &PL_sv_undef, 0); | |
0d863452 | 4662 | PUSHs(*other_elem); |
a566f585 | 4663 | PUSHs(*this_elem); |
0d863452 RH |
4664 | |
4665 | PUTBACK; | |
d7c0d282 | 4666 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
0d863452 RH |
4667 | (void) do_smartmatch(seen_this, seen_other); |
4668 | SPAGAIN; | |
d7c0d282 | 4669 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4670 | |
4671 | if (!SvTRUEx(POPs)) | |
4672 | RETPUSHNO; | |
4673 | } | |
4674 | } | |
4675 | RETPUSHYES; | |
4676 | } | |
4677 | } | |
a566f585 | 4678 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4679 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4680 | sm_regex_array: |
4681 | { | |
4682 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4683 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4684 | I32 i; | |
0d863452 | 4685 | |
ea0c2dbd RGS |
4686 | for(i = 0; i <= this_len; ++i) { |
4687 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4688 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4689 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4690 | destroy_matcher(matcher); | |
4691 | RETPUSHYES; | |
4692 | } | |
0d863452 | 4693 | } |
ea0c2dbd RGS |
4694 | destroy_matcher(matcher); |
4695 | RETPUSHNO; | |
0d863452 | 4696 | } |
0d863452 | 4697 | } |
015eb7b9 RGS |
4698 | else if (!SvOK(d)) { |
4699 | /* undef ~~ array */ | |
4700 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4701 | I32 i; |
4702 | ||
d7c0d282 | 4703 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4704 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4705 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4706 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4707 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4708 | RETPUSHYES; |
4709 | } | |
4710 | RETPUSHNO; | |
4711 | } | |
015eb7b9 | 4712 | else { |
41e726ac RGS |
4713 | sm_any_array: |
4714 | { | |
4715 | I32 i; | |
4716 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4717 | |
d7c0d282 | 4718 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4719 | for (i = 0; i <= this_len; ++i) { |
4720 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4721 | if (!svp) | |
4722 | continue; | |
015eb7b9 | 4723 | |
41e726ac RGS |
4724 | PUSHs(d); |
4725 | PUSHs(*svp); | |
4726 | PUTBACK; | |
4727 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4728 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
41e726ac RGS |
4729 | (void) do_smartmatch(NULL, NULL); |
4730 | SPAGAIN; | |
d7c0d282 | 4731 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4732 | if (SvTRUEx(POPs)) |
4733 | RETPUSHYES; | |
4734 | } | |
4735 | RETPUSHNO; | |
0d863452 | 4736 | } |
0d863452 RH |
4737 | } |
4738 | } | |
b0138e99 | 4739 | /* ~~ qr// */ |
a566f585 | 4740 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4741 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4742 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4743 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4744 | goto sm_regex_hash; |
4745 | } | |
4746 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4747 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4748 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4749 | goto sm_regex_array; |
4750 | } | |
4751 | else { | |
4752 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4753 | |
d7c0d282 | 4754 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4755 | PUTBACK; |
4756 | PUSHs(matcher_matches_sv(matcher, d) | |
4757 | ? &PL_sv_yes | |
4758 | : &PL_sv_no); | |
4759 | destroy_matcher(matcher); | |
4760 | RETURN; | |
4761 | } | |
0d863452 | 4762 | } |
b0138e99 | 4763 | /* ~~ scalar */ |
2c9d2554 RGS |
4764 | /* See if there is overload magic on left */ |
4765 | else if (object_on_left && SvAMAGIC(d)) { | |
4766 | SV *tmpsv; | |
d7c0d282 DM |
4767 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4768 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4769 | PUSHs(d); PUSHs(e); |
4770 | PUTBACK; | |
4771 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4772 | if (tmpsv) { | |
4773 | SPAGAIN; | |
4774 | (void)POPs; | |
4775 | SETs(tmpsv); | |
4776 | RETURN; | |
4777 | } | |
4778 | SP -= 2; | |
d7c0d282 | 4779 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4780 | goto sm_any_scalar; |
4781 | } | |
fb51372e RGS |
4782 | else if (!SvOK(d)) { |
4783 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4784 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4785 | RETPUSHNO; |
4786 | } | |
2c9d2554 RGS |
4787 | else |
4788 | sm_any_scalar: | |
4789 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4790 | DEBUG_M(if (SvNIOK(e)) |
4791 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4792 | else | |
4793 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4794 | ); | |
33ed63a2 | 4795 | /* numeric comparison */ |
0d863452 RH |
4796 | PUSHs(d); PUSHs(e); |
4797 | PUTBACK; | |
a98fe34d | 4798 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
897d3989 | 4799 | (void) Perl_pp_i_eq(aTHX); |
0d863452 | 4800 | else |
897d3989 | 4801 | (void) Perl_pp_eq(aTHX); |
0d863452 RH |
4802 | SPAGAIN; |
4803 | if (SvTRUEx(POPs)) | |
4804 | RETPUSHYES; | |
4805 | else | |
4806 | RETPUSHNO; | |
4807 | } | |
4808 | ||
4809 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4810 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4811 | PUSHs(d); PUSHs(e); |
4812 | PUTBACK; | |
897d3989 | 4813 | return Perl_pp_seq(aTHX); |
0d863452 RH |
4814 | } |
4815 | ||
4816 | PP(pp_enterwhen) | |
4817 | { | |
4818 | dVAR; dSP; | |
4819 | register PERL_CONTEXT *cx; | |
4820 | const I32 gimme = GIMME_V; | |
4821 | ||
4822 | /* This is essentially an optimization: if the match | |
4823 | fails, we don't want to push a context and then | |
4824 | pop it again right away, so we skip straight | |
4825 | to the op that follows the leavewhen. | |
25b991bf | 4826 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4827 | */ |
4828 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4829 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4830 | |
d343c3ef | 4831 | ENTER_with_name("eval"); |
0d863452 RH |
4832 | SAVETMPS; |
4833 | ||
4834 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4835 | PUSHWHEN(cx); | |
4836 | ||
4837 | RETURN; | |
4838 | } | |
4839 | ||
4840 | PP(pp_leavewhen) | |
4841 | { | |
4842 | dVAR; dSP; | |
4843 | register PERL_CONTEXT *cx; | |
4844 | I32 gimme; | |
4845 | SV **newsp; | |
4846 | PMOP *newpm; | |
4847 | ||
4848 | POPBLOCK(cx,newpm); | |
4849 | assert(CxTYPE(cx) == CXt_WHEN); | |
4850 | ||
4851 | SP = newsp; | |
4852 | PUTBACK; | |
4853 | ||
4854 | PL_curpm = newpm; /* pop $1 et al */ | |
4855 | ||
d343c3ef | 4856 | LEAVE_with_name("eval"); |
0d863452 RH |
4857 | return NORMAL; |
4858 | } | |
4859 | ||
4860 | PP(pp_continue) | |
4861 | { | |
4862 | dVAR; | |
4863 | I32 cxix; | |
4864 | register PERL_CONTEXT *cx; | |
4865 | I32 inner; | |
4866 | ||
4867 | cxix = dopoptowhen(cxstack_ix); | |
4868 | if (cxix < 0) | |
4869 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4870 | if (cxix < cxstack_ix) | |
4871 | dounwind(cxix); | |
4872 | ||
4873 | /* clear off anything above the scope we're re-entering */ | |
4874 | inner = PL_scopestack_ix; | |
4875 | TOPBLOCK(cx); | |
4876 | if (PL_scopestack_ix < inner) | |
4877 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4878 | PL_curcop = cx->blk_oldcop; | |
4879 | return cx->blk_givwhen.leave_op; | |
4880 | } | |
4881 | ||
4882 | PP(pp_break) | |
4883 | { | |
4884 | dVAR; | |
4885 | I32 cxix; | |
4886 | register PERL_CONTEXT *cx; | |
4887 | I32 inner; | |
25b991bf VP |
4888 | dSP; |
4889 | ||
0d863452 RH |
4890 | cxix = dopoptogiven(cxstack_ix); |
4891 | if (cxix < 0) { | |
4892 | if (PL_op->op_flags & OPf_SPECIAL) | |
4893 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4894 | else | |
4895 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4896 | } | |
4897 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4898 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4899 | ||
4900 | if (cxix < cxstack_ix) | |
4901 | dounwind(cxix); | |
4902 | ||
4903 | /* clear off anything above the scope we're re-entering */ | |
4904 | inner = PL_scopestack_ix; | |
4905 | TOPBLOCK(cx); | |
4906 | if (PL_scopestack_ix < inner) | |
4907 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4908 | PL_curcop = cx->blk_oldcop; | |
4909 | ||
4910 | if (CxFOREACH(cx)) | |
d57ce4df | 4911 | return (cx)->blk_loop.my_op->op_nextop; |
0d863452 | 4912 | else |
25b991bf VP |
4913 | /* RETURNOP calls PUTBACK which restores the old old sp */ |
4914 | RETURNOP(cx->blk_givwhen.leave_op); | |
0d863452 RH |
4915 | } |
4916 | ||
a1b95068 | 4917 | STATIC OP * |
cea2e8a9 | 4918 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4919 | { |
4920 | STRLEN len; | |
4921 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4922 | register char * const send = s + len; |
4923 | register char *base = NULL; | |
a0d0e21e | 4924 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4925 | bool noblank = FALSE; |
4926 | bool repeat = FALSE; | |
a0d0e21e | 4927 | bool postspace = FALSE; |
dea28490 JJ |
4928 | U32 *fops; |
4929 | register U32 *fpc; | |
cbbf8932 | 4930 | U32 *linepc = NULL; |
a0d0e21e LW |
4931 | register I32 arg; |
4932 | bool ischop; | |
a1b95068 WL |
4933 | bool unchopnum = FALSE; |
4934 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4935 | |
7918f24d NC |
4936 | PERL_ARGS_ASSERT_DOPARSEFORM; |
4937 | ||
55497cff | 4938 | if (len == 0) |
cea2e8a9 | 4939 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4940 | |
815f25c6 DM |
4941 | /* estimate the buffer size needed */ |
4942 | for (base = s; s <= send; s++) { | |
a1b95068 | 4943 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4944 | maxops += 10; |
4945 | } | |
4946 | s = base; | |
c445ea15 | 4947 | base = NULL; |
815f25c6 | 4948 | |
a02a5408 | 4949 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4950 | fpc = fops; |
4951 | ||
4952 | if (s < send) { | |
4953 | linepc = fpc; | |
4954 | *fpc++ = FF_LINEMARK; | |
4955 | noblank = repeat = FALSE; | |
4956 | base = s; | |
4957 | } | |
4958 | ||
4959 | while (s <= send) { | |
4960 | switch (*s++) { | |
4961 | default: | |
4962 | skipspaces = 0; | |
4963 | continue; | |
4964 | ||
4965 | case '~': | |
4966 | if (*s == '~') { | |
4967 | repeat = TRUE; | |
4968 | *s = ' '; | |
4969 | } | |
4970 | noblank = TRUE; | |
4971 | s[-1] = ' '; | |
4972 | /* FALL THROUGH */ | |
4973 | case ' ': case '\t': | |
4974 | skipspaces++; | |
4975 | continue; | |
a1b95068 WL |
4976 | case 0: |
4977 | if (s < send) { | |
4978 | skipspaces = 0; | |
4979 | continue; | |
4980 | } /* else FALL THROUGH */ | |
4981 | case '\n': | |
a0d0e21e LW |
4982 | arg = s - base; |
4983 | skipspaces++; | |
4984 | arg -= skipspaces; | |
4985 | if (arg) { | |
5f05dabc | 4986 | if (postspace) |
a0d0e21e | 4987 | *fpc++ = FF_SPACE; |
a0d0e21e | 4988 | *fpc++ = FF_LITERAL; |
eb160463 | 4989 | *fpc++ = (U16)arg; |
a0d0e21e | 4990 | } |
5f05dabc | 4991 | postspace = FALSE; |
a0d0e21e LW |
4992 | if (s <= send) |
4993 | skipspaces--; | |
4994 | if (skipspaces) { | |
4995 | *fpc++ = FF_SKIP; | |
eb160463 | 4996 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4997 | } |
4998 | skipspaces = 0; | |
4999 | if (s <= send) | |
5000 | *fpc++ = FF_NEWLINE; | |
5001 | if (noblank) { | |
5002 | *fpc++ = FF_BLANK; | |
5003 | if (repeat) | |
5004 | arg = fpc - linepc + 1; | |
5005 | else | |
5006 | arg = 0; | |
eb160463 | 5007 | *fpc++ = (U16)arg; |
a0d0e21e LW |
5008 | } |
5009 | if (s < send) { | |
5010 | linepc = fpc; | |
5011 | *fpc++ = FF_LINEMARK; | |
5012 | noblank = repeat = FALSE; | |
5013 | base = s; | |
5014 | } | |
5015 | else | |
5016 | s++; | |
5017 | continue; | |
5018 | ||
5019 | case '@': | |
5020 | case '^': | |
5021 | ischop = s[-1] == '^'; | |
5022 | ||
5023 | if (postspace) { | |
5024 | *fpc++ = FF_SPACE; | |
5025 | postspace = FALSE; | |
5026 | } | |
5027 | arg = (s - base) - 1; | |
5028 | if (arg) { | |
5029 | *fpc++ = FF_LITERAL; | |
eb160463 | 5030 | *fpc++ = (U16)arg; |
a0d0e21e LW |
5031 | } |
5032 | ||
5033 | base = s - 1; | |
5034 | *fpc++ = FF_FETCH; | |
5035 | if (*s == '*') { | |
5036 | s++; | |
a1b95068 WL |
5037 | *fpc++ = 2; /* skip the @* or ^* */ |
5038 | if (ischop) { | |
5039 | *fpc++ = FF_LINESNGL; | |
5040 | *fpc++ = FF_CHOP; | |
5041 | } else | |
5042 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
5043 | } |
5044 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
5045 | arg = ischop ? 512 : 0; | |
5046 | base = s - 1; | |
5047 | while (*s == '#') | |
5048 | s++; | |
5049 | if (*s == '.') { | |
06b5626a | 5050 | const char * const f = ++s; |
a0d0e21e LW |
5051 | while (*s == '#') |
5052 | s++; | |
5053 | arg |= 256 + (s - f); | |
5054 | } | |
5055 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5056 | *fpc++ = FF_DECIMAL; | |
eb160463 | 5057 | *fpc++ = (U16)arg; |
a1b95068 | 5058 | unchopnum |= ! ischop; |
784707d5 JP |
5059 | } |
5060 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
5061 | arg = ischop ? 512 : 0; | |
5062 | base = s - 1; | |
5063 | s++; /* skip the '0' first */ | |
5064 | while (*s == '#') | |
5065 | s++; | |
5066 | if (*s == '.') { | |
06b5626a | 5067 | const char * const f = ++s; |
784707d5 JP |
5068 | while (*s == '#') |
5069 | s++; | |
5070 | arg |= 256 + (s - f); | |
5071 | } | |
5072 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5073 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 5074 | *fpc++ = (U16)arg; |
a1b95068 | 5075 | unchopnum |= ! ischop; |
a0d0e21e LW |
5076 | } |
5077 | else { | |
5078 | I32 prespace = 0; | |
5079 | bool ismore = FALSE; | |
5080 | ||
5081 | if (*s == '>') { | |
5082 | while (*++s == '>') ; | |
5083 | prespace = FF_SPACE; | |
5084 | } | |
5085 | else if (*s == '|') { | |
5086 | while (*++s == '|') ; | |
5087 | prespace = FF_HALFSPACE; | |
5088 | postspace = TRUE; | |
5089 | } | |
5090 | else { | |
5091 | if (*s == '<') | |
5092 | while (*++s == '<') ; | |
5093 | postspace = TRUE; | |
5094 | } | |
5095 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
5096 | s += 3; | |
5097 | ismore = TRUE; | |
5098 | } | |
5099 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5100 | ||
5101 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
5102 | ||
5103 | if (prespace) | |
eb160463 | 5104 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
5105 | *fpc++ = FF_ITEM; |
5106 | if (ismore) | |
5107 | *fpc++ = FF_MORE; | |
5108 | if (ischop) | |
5109 | *fpc++ = FF_CHOP; | |
5110 | } | |
5111 | base = s; | |
5112 | skipspaces = 0; | |
5113 | continue; | |
5114 | } | |
5115 | } | |
5116 | *fpc++ = FF_END; | |
5117 | ||
815f25c6 | 5118 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
5119 | arg = fpc - fops; |
5120 | { /* need to jump to the next word */ | |
5121 | int z; | |
5122 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 5123 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
5124 | s = SvPVX(sv) + SvCUR(sv) + z; |
5125 | } | |
dea28490 | 5126 | Copy(fops, s, arg, U32); |
a0d0e21e | 5127 | Safefree(fops); |
c445ea15 | 5128 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 5129 | SvCOMPILED_on(sv); |
a1b95068 | 5130 | |
bfed75c6 | 5131 | if (unchopnum && repeat) |
a1b95068 WL |
5132 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
5133 | return 0; | |
5134 | } | |
5135 | ||
5136 | ||
5137 | STATIC bool | |
5138 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
5139 | { | |
5140 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
5141 | NV pwr = 1; | |
5142 | NV eps = 0.5; | |
5143 | bool res = FALSE; | |
5144 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
5145 | ||
5146 | if (frcsize & 256) | |
5147 | intsize--; | |
5148 | frcsize &= 255; | |
5149 | intsize -= frcsize; | |
5150 | ||
5151 | while (intsize--) pwr *= 10.0; | |
5152 | while (frcsize--) eps /= 10.0; | |
5153 | ||
5154 | if( value >= 0 ){ | |
5155 | if (value + eps >= pwr) | |
5156 | res = TRUE; | |
5157 | } else { | |
5158 | if (value - eps <= -pwr) | |
5159 | res = TRUE; | |
5160 | } | |
5161 | return res; | |
a0d0e21e | 5162 | } |
4e35701f | 5163 | |
bbed91b5 | 5164 | static I32 |
0bd48802 | 5165 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 5166 | { |
27da23d5 | 5167 | dVAR; |
0bd48802 | 5168 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 5169 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
5170 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
5171 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5172 | int status = 0; |
ec0b63d7 | 5173 | SV *upstream; |
941a98a0 | 5174 | STRLEN got_len; |
162177c1 Z |
5175 | char *got_p = NULL; |
5176 | char *prune_from = NULL; | |
34113e50 | 5177 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
5178 | STRLEN umaxlen; |
5179 | ||
7918f24d NC |
5180 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5181 | ||
bb7a0f54 MHM |
5182 | assert(maxlen >= 0); |
5183 | umaxlen = maxlen; | |
5675696b | 5184 | |
bbed91b5 KF |
5185 | /* I was having segfault trouble under Linux 2.2.5 after a |
5186 | parse error occured. (Had to hack around it with a test | |
13765c85 | 5187 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5188 | not sure where the trouble is yet. XXX */ |
5189 | ||
4464f08e NC |
5190 | { |
5191 | SV *const cache = datasv; | |
937b367d NC |
5192 | if (SvOK(cache)) { |
5193 | STRLEN cache_len; | |
5194 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5195 | STRLEN take = 0; |
5196 | ||
bb7a0f54 | 5197 | if (umaxlen) { |
941a98a0 NC |
5198 | /* Running in block mode and we have some cached data already. |
5199 | */ | |
bb7a0f54 | 5200 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5201 | /* In fact, so much data we don't even need to call |
5202 | filter_read. */ | |
bb7a0f54 | 5203 | take = umaxlen; |
941a98a0 NC |
5204 | } |
5205 | } else { | |
10edeb5d JH |
5206 | const char *const first_nl = |
5207 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5208 | if (first_nl) { |
5209 | take = first_nl + 1 - cache_p; | |
5210 | } | |
5211 | } | |
5212 | if (take) { | |
5213 | sv_catpvn(buf_sv, cache_p, take); | |
5214 | sv_chop(cache, cache_p + take); | |
486ec47a | 5215 | /* Definitely not EOF */ |
937b367d NC |
5216 | return 1; |
5217 | } | |
941a98a0 | 5218 | |
937b367d | 5219 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5220 | if (umaxlen) { |
5221 | umaxlen -= cache_len; | |
941a98a0 | 5222 | } |
937b367d | 5223 | SvOK_off(cache); |
34113e50 | 5224 | read_from_cache = TRUE; |
937b367d NC |
5225 | } |
5226 | } | |
ec0b63d7 | 5227 | |
34113e50 NC |
5228 | /* Filter API says that the filter appends to the contents of the buffer. |
5229 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5230 | then clearly what it contains is already filtered by this filter, so we | |
5231 | don't want to pass it in a second time. | |
5232 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5233 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5234 | ? sv_newmortal() : buf_sv; | |
5235 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5236 | |
bbed91b5 | 5237 | if (filter_has_file) { |
67e70b33 | 5238 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5239 | } |
5240 | ||
34113e50 | 5241 | if (filter_sub && status >= 0) { |
39644a26 | 5242 | dSP; |
bbed91b5 KF |
5243 | int count; |
5244 | ||
d343c3ef | 5245 | ENTER_with_name("call_filter_sub"); |
bbed91b5 KF |
5246 | SAVE_DEFSV; |
5247 | SAVETMPS; | |
5248 | EXTEND(SP, 2); | |
5249 | ||
414bf5ae | 5250 | DEFSV_set(upstream); |
bbed91b5 | 5251 | PUSHMARK(SP); |
6e449a3a | 5252 | mPUSHi(0); |
bbed91b5 KF |
5253 | if (filter_state) { |
5254 | PUSHs(filter_state); | |
5255 | } | |
5256 | PUTBACK; | |
5257 | count = call_sv(filter_sub, G_SCALAR); | |
5258 | SPAGAIN; | |
5259 | ||
5260 | if (count > 0) { | |
5261 | SV *out = POPs; | |
5262 | if (SvOK(out)) { | |
941a98a0 | 5263 | status = SvIV(out); |
bbed91b5 KF |
5264 | } |
5265 | } | |
5266 | ||
5267 | PUTBACK; | |
5268 | FREETMPS; | |
d343c3ef | 5269 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5270 | } |
5271 | ||
941a98a0 NC |
5272 | if(SvOK(upstream)) { |
5273 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
5274 | if (umaxlen) { |
5275 | if (got_len > umaxlen) { | |
5276 | prune_from = got_p + umaxlen; | |
937b367d | 5277 | } |
941a98a0 | 5278 | } else { |
162177c1 | 5279 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5280 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5281 | /* There's a second line here... */ | |
5282 | prune_from = first_nl + 1; | |
937b367d | 5283 | } |
937b367d NC |
5284 | } |
5285 | } | |
941a98a0 NC |
5286 | if (prune_from) { |
5287 | /* Oh. Too long. Stuff some in our cache. */ | |
5288 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5289 | SV *const cache = datasv; |
941a98a0 | 5290 | |
4464f08e | 5291 | if (SvOK(cache)) { |
941a98a0 NC |
5292 | /* Cache should be empty. */ |
5293 | assert(!SvCUR(cache)); | |
5294 | } | |
5295 | ||
5296 | sv_setpvn(cache, prune_from, cached_len); | |
5297 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5298 | "If it breaks, you get to keep both parts" | |
5299 | (Your code is broken if you don't put them back together again | |
5300 | before something notices.) */ | |
5301 | if (SvUTF8(upstream)) { | |
5302 | SvUTF8_on(cache); | |
5303 | } | |
5304 | SvCUR_set(upstream, got_len - cached_len); | |
162177c1 | 5305 | *prune_from = 0; |
941a98a0 NC |
5306 | /* Can't yet be EOF */ |
5307 | if (status == 0) | |
5308 | status = 1; | |
5309 | } | |
937b367d | 5310 | |
34113e50 NC |
5311 | /* If they are at EOF but buf_sv has something in it, then they may never |
5312 | have touched the SV upstream, so it may be undefined. If we naively | |
5313 | concatenate it then we get a warning about use of uninitialised value. | |
5314 | */ | |
5315 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
5316 | sv_catsv(buf_sv, upstream); |
5317 | } | |
5318 | ||
941a98a0 | 5319 | if (status <= 0) { |
bbed91b5 | 5320 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5321 | if (filter_state) { |
5322 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5323 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5324 | } |
5325 | if (filter_sub) { | |
5326 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5327 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5328 | } |
0bd48802 | 5329 | filter_del(S_run_user_filter); |
bbed91b5 | 5330 | } |
34113e50 NC |
5331 | if (status == 0 && read_from_cache) { |
5332 | /* If we read some data from the cache (and by getting here it implies | |
5333 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5334 | report that to our caller. */ | |
5335 | return 1; | |
5336 | } | |
941a98a0 | 5337 | return status; |
bbed91b5 | 5338 | } |
84d4ea48 | 5339 | |
be4b629d CN |
5340 | /* perhaps someone can come up with a better name for |
5341 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5342 | static bool |
5f66b61c | 5343 | S_path_is_absolute(const char *name) |
be4b629d | 5344 | { |
7918f24d NC |
5345 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5346 | ||
be4b629d | 5347 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5348 | #ifdef WIN32 |
36f064bc CL |
5349 | || (*name == '.' && ((name[1] == '/' || |
5350 | (name[1] == '.' && name[2] == '/')) | |
5351 | || (name[1] == '\\' || | |
5352 | ( name[1] == '.' && name[2] == '\\'))) | |
5353 | ) | |
5354 | #else | |
be4b629d | 5355 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5356 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5357 | #endif |
0bd48802 | 5358 | ) |
be4b629d CN |
5359 | { |
5360 | return TRUE; | |
5361 | } | |
5362 | else | |
5363 | return FALSE; | |
5364 | } | |
241d1a3b NC |
5365 | |
5366 | /* | |
5367 | * Local variables: | |
5368 | * c-indentation-style: bsd | |
5369 | * c-basic-offset: 4 | |
5370 | * indent-tabs-mode: t | |
5371 | * End: | |
5372 | * | |
37442d52 RGS |
5373 | * ex: set ts=8 sts=4 sw=4 noet: |
5374 | */ |