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 | ||
54310121 | 37 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 38 | |
94fcd414 NC |
39 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
40 | ||
a0d0e21e LW |
41 | PP(pp_wantarray) |
42 | { | |
97aff369 | 43 | dVAR; |
39644a26 | 44 | dSP; |
a0d0e21e | 45 | I32 cxix; |
93f0bc49 | 46 | const PERL_CONTEXT *cx; |
a0d0e21e LW |
47 | EXTEND(SP, 1); |
48 | ||
93f0bc49 FC |
49 | if (PL_op->op_private & OPpOFFBYONE) { |
50 | if (!(cx = caller_cx(1,NULL))) RETPUSHUNDEF; | |
51 | } | |
52 | else { | |
53 | cxix = dopoptosub(cxstack_ix); | |
54 | if (cxix < 0) | |
a0d0e21e | 55 | RETPUSHUNDEF; |
93f0bc49 FC |
56 | cx = &cxstack[cxix]; |
57 | } | |
a0d0e21e | 58 | |
93f0bc49 | 59 | switch (cx->blk_gimme) { |
54310121 | 60 | case G_ARRAY: |
a0d0e21e | 61 | RETPUSHYES; |
54310121 | 62 | case G_SCALAR: |
a0d0e21e | 63 | RETPUSHNO; |
54310121 | 64 | default: |
65 | RETPUSHUNDEF; | |
66 | } | |
a0d0e21e LW |
67 | } |
68 | ||
2cd61cdb IZ |
69 | PP(pp_regcreset) |
70 | { | |
97aff369 | 71 | dVAR; |
0b4182de | 72 | TAINT_NOT; |
2cd61cdb IZ |
73 | return NORMAL; |
74 | } | |
75 | ||
b3eb6a9b GS |
76 | PP(pp_regcomp) |
77 | { | |
97aff369 | 78 | dVAR; |
39644a26 | 79 | dSP; |
eb578fdb | 80 | PMOP *pm = (PMOP*)cLOGOP->op_other; |
9f141731 | 81 | SV **args; |
df787a7b | 82 | int nargs; |
84679df5 | 83 | REGEXP *re = NULL; |
9f141731 DM |
84 | REGEXP *new_re; |
85 | const regexp_engine *eng; | |
76ac488f | 86 | bool is_bare_re; |
bfed75c6 | 87 | |
df787a7b DM |
88 | if (PL_op->op_flags & OPf_STACKED) { |
89 | dMARK; | |
90 | nargs = SP - MARK; | |
91 | args = ++MARK; | |
92 | } | |
93 | else { | |
94 | nargs = 1; | |
95 | args = SP; | |
96 | } | |
97 | ||
4b5a0d1c | 98 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 99 | #if defined(USE_ITHREADS) |
131b3ad0 | 100 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
df787a7b | 101 | SP = args-1; |
131b3ad0 DM |
102 | RETURN; |
103 | } | |
513629ba | 104 | #endif |
d4b87e75 | 105 | |
9f141731 DM |
106 | re = PM_GETRE(pm); |
107 | assert (re != (REGEXP*) &PL_sv_undef); | |
108 | eng = re ? RX_ENGINE(re) : current_re_engine(); | |
109 | ||
3c13cae6 DM |
110 | new_re = (eng->op_comp |
111 | ? eng->op_comp | |
112 | : &Perl_re_op_compile | |
113 | )(aTHX_ args, nargs, pm->op_code_list, eng, re, | |
346d3070 | 114 | &is_bare_re, |
514a91f1 | 115 | (pm->op_pmflags & RXf_PMf_COMPILETIME), |
a5ae69f0 DM |
116 | pm->op_pmflags | |
117 | (PL_op->op_flags & OPf_SPECIAL ? PMf_USE_RE_EVAL : 0)); | |
346d3070 | 118 | if (pm->op_pmflags & PMf_HAS_CV) |
9ef2bcf6 | 119 | ((struct regexp *)SvANY(new_re))->qr_anoncv |
9fe3265f | 120 | = (CV*) SvREFCNT_inc(PAD_SV(PL_op->op_targ)); |
9f141731 DM |
121 | |
122 | if (is_bare_re) { | |
123 | REGEXP *tmp; | |
124 | /* The match's LHS's get-magic might need to access this op's regexp | |
125 | (e.g. $' =~ /$re/ while foo; see bug 70764). So we must call | |
126 | get-magic now before we replace the regexp. Hopefully this hack can | |
127 | be replaced with the approach described at | |
128 | http://www.nntp.perl.org/group/perl.perl5.porters/2007/03/msg122415.html | |
129 | some day. */ | |
130 | if (pm->op_type == OP_MATCH) { | |
131 | SV *lhs; | |
132 | const bool was_tainted = PL_tainted; | |
133 | if (pm->op_flags & OPf_STACKED) | |
134 | lhs = args[-1]; | |
135 | else if (pm->op_private & OPpTARGET_MY) | |
136 | lhs = PAD_SV(pm->op_targ); | |
137 | else lhs = DEFSV; | |
138 | SvGETMAGIC(lhs); | |
139 | /* Restore the previous value of PL_tainted (which may have been | |
140 | modified by get-magic), to avoid incorrectly setting the | |
141 | RXf_TAINTED flag further down. */ | |
142 | PL_tainted = was_tainted; | |
df787a7b | 143 | } |
9f141731 DM |
144 | tmp = reg_temp_copy(NULL, new_re); |
145 | ReREFCNT_dec(new_re); | |
146 | new_re = tmp; | |
df787a7b | 147 | } |
9f141731 DM |
148 | if (re != new_re) { |
149 | ReREFCNT_dec(re); | |
150 | PM_SETRE(pm, new_re); | |
c277df42 | 151 | } |
d4b87e75 | 152 | |
72311751 | 153 | #ifndef INCOMPLETE_TAINTS |
9f141731 DM |
154 | if (PL_tainting && PL_tainted) { |
155 | SvTAINTED_on((SV*)new_re); | |
156 | RX_EXTFLAGS(new_re) |= RXf_TAINTED; | |
72311751 GS |
157 | } |
158 | #endif | |
159 | ||
c737faaf YO |
160 | #if !defined(USE_ITHREADS) |
161 | /* can't change the optree at runtime either */ | |
162 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
9f141731 DM |
163 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
164 | pm = PL_curpm; | |
a0d0e21e | 165 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 166 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 167 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 168 | } |
c737faaf | 169 | #endif |
9f141731 | 170 | |
df787a7b | 171 | SP = args-1; |
a0d0e21e LW |
172 | RETURN; |
173 | } | |
174 | ||
9f141731 | 175 | |
a0d0e21e LW |
176 | PP(pp_substcont) |
177 | { | |
97aff369 | 178 | dVAR; |
39644a26 | 179 | dSP; |
eb578fdb KW |
180 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
181 | PMOP * const pm = (PMOP*) cLOGOP->op_other; | |
182 | SV * const dstr = cx->sb_dstr; | |
183 | char *s = cx->sb_s; | |
184 | char *m = cx->sb_m; | |
a0d0e21e | 185 | char *orig = cx->sb_orig; |
eb578fdb | 186 | REGEXP * const rx = cx->sb_rx; |
c445ea15 | 187 | SV *nsv = NULL; |
988e6e7e | 188 | REGEXP *old = PM_GETRE(pm); |
f410a211 NC |
189 | |
190 | PERL_ASYNC_CHECK(); | |
191 | ||
988e6e7e | 192 | if(old != rx) { |
bfed75c6 | 193 | if(old) |
988e6e7e | 194 | ReREFCNT_dec(old); |
d6106309 | 195 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
196 | } |
197 | ||
d9f97599 | 198 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 199 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 200 | |
a0d0e21e | 201 | if (cx->sb_iters++) { |
a3b680e6 | 202 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 203 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 204 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 205 | |
447ee134 DM |
206 | SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */ |
207 | ||
ef07e810 | 208 | /* See "how taint works" above pp_subst() */ |
20be6587 DM |
209 | if (SvTAINTED(TOPs)) |
210 | cx->sb_rxtainted |= SUBST_TAINT_REPL; | |
447ee134 | 211 | sv_catsv_nomg(dstr, POPs); |
2c296965 YO |
212 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
213 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
214 | |
215 | /* Are we done */ | |
2c296965 YO |
216 | if (CxONCE(cx) || s < orig || |
217 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
218 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
219 | ((cx->sb_rflags & REXEC_COPY_STR) | |
220 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) | |
221 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 222 | { |
8ca8a454 | 223 | SV *targ = cx->sb_targ; |
748a9306 | 224 | |
078c425b JH |
225 | assert(cx->sb_strend >= s); |
226 | if(cx->sb_strend > s) { | |
227 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
4bac9ae4 | 228 | sv_catpvn_nomg_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); |
078c425b | 229 | else |
4bac9ae4 | 230 | sv_catpvn_nomg(dstr, s, cx->sb_strend - s); |
078c425b | 231 | } |
20be6587 DM |
232 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ |
233 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
9212bbba | 234 | |
8ca8a454 NC |
235 | if (pm->op_pmflags & PMf_NONDESTRUCT) { |
236 | PUSHs(dstr); | |
237 | /* From here on down we're using the copy, and leaving the | |
238 | original untouched. */ | |
239 | targ = dstr; | |
240 | } | |
241 | else { | |
8ca8a454 NC |
242 | if (SvIsCOW(targ)) { |
243 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
244 | } else | |
8ca8a454 NC |
245 | { |
246 | SvPV_free(targ); | |
247 | } | |
248 | SvPV_set(targ, SvPVX(dstr)); | |
249 | SvCUR_set(targ, SvCUR(dstr)); | |
250 | SvLEN_set(targ, SvLEN(dstr)); | |
251 | if (DO_UTF8(dstr)) | |
252 | SvUTF8_on(targ); | |
253 | SvPV_set(dstr, NULL); | |
254 | ||
4f4d7508 | 255 | mPUSHi(saviters - 1); |
48c036b1 | 256 | |
8ca8a454 NC |
257 | (void)SvPOK_only_UTF8(targ); |
258 | } | |
5cd24f17 | 259 | |
20be6587 | 260 | /* update the taint state of various various variables in |
ef07e810 DM |
261 | * preparation for final exit. |
262 | * See "how taint works" above pp_subst() */ | |
20be6587 DM |
263 | if (PL_tainting) { |
264 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || | |
265 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
266 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
267 | ) | |
268 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
269 | ||
270 | if (!(cx->sb_rxtainted & SUBST_TAINT_BOOLRET) | |
271 | && (cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_PAT)) | |
272 | ) | |
273 | SvTAINTED_on(TOPs); /* taint return value */ | |
274 | /* needed for mg_set below */ | |
275 | PL_tainted = cBOOL(cx->sb_rxtainted & | |
276 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL)); | |
277 | SvTAINT(TARG); | |
278 | } | |
279 | /* PL_tainted must be correctly set for this mg_set */ | |
280 | SvSETMAGIC(TARG); | |
281 | TAINT_NOT; | |
4633a7c4 | 282 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
283 | POPSUBST(cx); |
284 | RETURNOP(pm->op_next); | |
118e2215 | 285 | assert(0); /* NOTREACHED */ |
a0d0e21e | 286 | } |
8e5e9ebe | 287 | cx->sb_iters = saviters; |
a0d0e21e | 288 | } |
07bc277f | 289 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
290 | m = s; |
291 | s = orig; | |
07bc277f | 292 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
293 | s = orig + (m - s); |
294 | cx->sb_strend = s + (cx->sb_strend - m); | |
295 | } | |
07bc277f | 296 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 297 | if (m > s) { |
bfed75c6 | 298 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
4bac9ae4 | 299 | sv_catpvn_nomg_utf8_upgrade(dstr, s, m - s, nsv); |
db79b45b | 300 | else |
4bac9ae4 | 301 | sv_catpvn_nomg(dstr, s, m-s); |
db79b45b | 302 | } |
07bc277f | 303 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 304 | { /* Update the pos() information. */ |
8ca8a454 NC |
305 | SV * const sv |
306 | = (pm->op_pmflags & PMf_NONDESTRUCT) ? cx->sb_dstr : cx->sb_targ; | |
084916e3 | 307 | MAGIC *mg; |
7a7f3e45 | 308 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 309 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 310 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 311 | if (SvIsCOW(sv)) |
d83f0a82 NC |
312 | sv_force_normal_flags(sv, 0); |
313 | #endif | |
314 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
315 | NULL, 0); | |
084916e3 | 316 | } |
ce474962 | 317 | mg->mg_len = m - orig; |
084916e3 | 318 | } |
988e6e7e | 319 | if (old != rx) |
d6106309 | 320 | (void)ReREFCNT_inc(rx); |
20be6587 | 321 | /* update the taint state of various various variables in preparation |
ef07e810 DM |
322 | * for calling the code block. |
323 | * See "how taint works" above pp_subst() */ | |
20be6587 DM |
324 | if (PL_tainting) { |
325 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ | |
326 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
327 | ||
328 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || | |
329 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
330 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
331 | ) | |
332 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
333 | ||
334 | if (cx->sb_iters > 1 && (cx->sb_rxtainted & | |
335 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL))) | |
8ca8a454 NC |
336 | SvTAINTED_on((pm->op_pmflags & PMf_NONDESTRUCT) |
337 | ? cx->sb_dstr : cx->sb_targ); | |
20be6587 DM |
338 | TAINT_NOT; |
339 | } | |
d9f97599 | 340 | rxres_save(&cx->sb_rxres, rx); |
af9838cc | 341 | PL_curpm = pm; |
29f2e912 | 342 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
343 | } |
344 | ||
c90c0ff4 | 345 | void |
864dbfa3 | 346 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 347 | { |
348 | UV *p = (UV*)*rsp; | |
349 | U32 i; | |
7918f24d NC |
350 | |
351 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 352 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 353 | |
07bc277f | 354 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 355 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 356 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 357 | #else |
07bc277f | 358 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 359 | #endif |
c90c0ff4 | 360 | if (!p) |
a02a5408 | 361 | Newx(p, i, UV); |
c90c0ff4 | 362 | else |
363 | Renew(p, i, UV); | |
364 | *rsp = (void*)p; | |
365 | } | |
366 | ||
07bc277f | 367 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 368 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 369 | |
f8c7b90f | 370 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
371 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
372 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
373 | #endif |
374 | ||
07bc277f | 375 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 376 | |
07bc277f NC |
377 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
378 | *p++ = (UV)RX_SUBLEN(rx); | |
379 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
380 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
381 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 382 | } |
383 | } | |
384 | ||
9c105995 NC |
385 | static void |
386 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 387 | { |
388 | UV *p = (UV*)*rsp; | |
389 | U32 i; | |
7918f24d NC |
390 | |
391 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 392 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 393 | |
ed252734 | 394 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 395 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 396 | *p++ = 0; |
397 | ||
f8c7b90f | 398 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
399 | if (RX_SAVED_COPY(rx)) |
400 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
401 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
402 | *p++ = 0; |
403 | #endif | |
404 | ||
07bc277f | 405 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 406 | |
07bc277f NC |
407 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
408 | RX_SUBLEN(rx) = (I32)(*p++); | |
409 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
410 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
411 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 412 | } |
413 | } | |
414 | ||
9c105995 NC |
415 | static void |
416 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 417 | { |
44f8325f | 418 | UV * const p = (UV*)*rsp; |
7918f24d NC |
419 | |
420 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 421 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 422 | |
423 | if (p) { | |
94010e71 NC |
424 | #ifdef PERL_POISON |
425 | void *tmp = INT2PTR(char*,*p); | |
426 | Safefree(tmp); | |
427 | if (*p) | |
7e337ee0 | 428 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 429 | #else |
56431972 | 430 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 431 | #endif |
f8c7b90f | 432 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
433 | if (p[1]) { |
434 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
435 | } | |
436 | #endif | |
c90c0ff4 | 437 | Safefree(p); |
4608196e | 438 | *rsp = NULL; |
c90c0ff4 | 439 | } |
440 | } | |
441 | ||
a701009a DM |
442 | #define FORM_NUM_BLANK (1<<30) |
443 | #define FORM_NUM_POINT (1<<29) | |
444 | ||
a0d0e21e LW |
445 | PP(pp_formline) |
446 | { | |
97aff369 | 447 | dVAR; dSP; dMARK; dORIGMARK; |
eb578fdb | 448 | SV * const tmpForm = *++MARK; |
086b26f3 | 449 | SV *formsv; /* contains text of original format */ |
eb578fdb KW |
450 | U32 *fpc; /* format ops program counter */ |
451 | char *t; /* current append position in target string */ | |
086b26f3 | 452 | const char *f; /* current position in format string */ |
eb578fdb KW |
453 | I32 arg; |
454 | SV *sv = NULL; /* current item */ | |
086b26f3 DM |
455 | const char *item = NULL;/* string value of current item */ |
456 | I32 itemsize = 0; /* length of current item, possibly truncated */ | |
457 | I32 fieldsize = 0; /* width of current field */ | |
458 | I32 lines = 0; /* number of lines that have been output */ | |
459 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); /* does $: have space */ | |
460 | const char *chophere = NULL; /* where to chop current item */ | |
f5ada144 | 461 | STRLEN linemark = 0; /* pos of start of line in output */ |
65202027 | 462 | NV value; |
086b26f3 | 463 | bool gotsome = FALSE; /* seen at least one non-blank item on this line */ |
a0d0e21e | 464 | STRLEN len; |
26e935cf | 465 | STRLEN linemax; /* estimate of output size in bytes */ |
1bd51a4c IH |
466 | bool item_is_utf8 = FALSE; |
467 | bool targ_is_utf8 = FALSE; | |
bfed75c6 | 468 | const char *fmt; |
74e0ddf7 | 469 | MAGIC *mg = NULL; |
4ff700b9 DM |
470 | U8 *source; /* source of bytes to append */ |
471 | STRLEN to_copy; /* how may bytes to append */ | |
ea60cfe8 | 472 | char trans; /* what chars to translate */ |
74e0ddf7 | 473 | |
3808a683 | 474 | mg = doparseform(tmpForm); |
a0d0e21e | 475 | |
74e0ddf7 | 476 | fpc = (U32*)mg->mg_ptr; |
3808a683 DM |
477 | /* the actual string the format was compiled from. |
478 | * with overload etc, this may not match tmpForm */ | |
479 | formsv = mg->mg_obj; | |
480 | ||
74e0ddf7 | 481 | |
3280af22 | 482 | SvPV_force(PL_formtarget, len); |
3808a683 | 483 | if (SvTAINTED(tmpForm) || SvTAINTED(formsv)) |
125b9982 | 484 | SvTAINTED_on(PL_formtarget); |
1bd51a4c IH |
485 | if (DO_UTF8(PL_formtarget)) |
486 | targ_is_utf8 = TRUE; | |
26e935cf DM |
487 | linemax = (SvCUR(formsv) * (IN_BYTES ? 1 : 3) + 1); |
488 | t = SvGROW(PL_formtarget, len + linemax + 1); | |
489 | /* XXX from now onwards, SvCUR(PL_formtarget) is invalid */ | |
a0d0e21e | 490 | t += len; |
3808a683 | 491 | f = SvPV_const(formsv, len); |
a0d0e21e LW |
492 | |
493 | for (;;) { | |
494 | DEBUG_f( { | |
bfed75c6 | 495 | const char *name = "???"; |
a0d0e21e LW |
496 | arg = -1; |
497 | switch (*fpc) { | |
498 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
499 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
500 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
501 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
502 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
503 | ||
504 | case FF_CHECKNL: name = "CHECKNL"; break; | |
505 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
506 | case FF_SPACE: name = "SPACE"; break; | |
507 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
508 | case FF_ITEM: name = "ITEM"; break; | |
509 | case FF_CHOP: name = "CHOP"; break; | |
510 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
511 | case FF_NEWLINE: name = "NEWLINE"; break; | |
512 | case FF_MORE: name = "MORE"; break; | |
513 | case FF_LINEMARK: name = "LINEMARK"; break; | |
514 | case FF_END: name = "END"; break; | |
bfed75c6 | 515 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 516 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
517 | } |
518 | if (arg >= 0) | |
bf49b057 | 519 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 520 | else |
bf49b057 | 521 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 522 | } ); |
a0d0e21e LW |
523 | switch (*fpc++) { |
524 | case FF_LINEMARK: | |
f5ada144 | 525 | linemark = t - SvPVX(PL_formtarget); |
a0d0e21e LW |
526 | lines++; |
527 | gotsome = FALSE; | |
528 | break; | |
529 | ||
530 | case FF_LITERAL: | |
ea60cfe8 DM |
531 | to_copy = *fpc++; |
532 | source = (U8 *)f; | |
533 | f += to_copy; | |
534 | trans = '~'; | |
75645721 | 535 | item_is_utf8 = targ_is_utf8 ? !!DO_UTF8(formsv) : !!SvUTF8(formsv); |
ea60cfe8 | 536 | goto append; |
a0d0e21e LW |
537 | |
538 | case FF_SKIP: | |
539 | f += *fpc++; | |
540 | break; | |
541 | ||
542 | case FF_FETCH: | |
543 | arg = *fpc++; | |
544 | f += arg; | |
545 | fieldsize = arg; | |
546 | ||
547 | if (MARK < SP) | |
548 | sv = *++MARK; | |
549 | else { | |
3280af22 | 550 | sv = &PL_sv_no; |
a2a5de95 | 551 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e | 552 | } |
125b9982 NT |
553 | if (SvTAINTED(sv)) |
554 | SvTAINTED_on(PL_formtarget); | |
a0d0e21e LW |
555 | break; |
556 | ||
557 | case FF_CHECKNL: | |
5a34cab7 NC |
558 | { |
559 | const char *send; | |
560 | const char *s = item = SvPV_const(sv, len); | |
561 | itemsize = len; | |
562 | if (DO_UTF8(sv)) { | |
563 | itemsize = sv_len_utf8(sv); | |
564 | if (itemsize != (I32)len) { | |
565 | I32 itembytes; | |
566 | if (itemsize > fieldsize) { | |
567 | itemsize = fieldsize; | |
568 | itembytes = itemsize; | |
569 | sv_pos_u2b(sv, &itembytes, 0); | |
570 | } | |
571 | else | |
572 | itembytes = len; | |
573 | send = chophere = s + itembytes; | |
574 | while (s < send) { | |
575 | if (*s & ~31) | |
576 | gotsome = TRUE; | |
577 | else if (*s == '\n') | |
578 | break; | |
579 | s++; | |
580 | } | |
581 | item_is_utf8 = TRUE; | |
582 | itemsize = s - item; | |
583 | sv_pos_b2u(sv, &itemsize); | |
584 | break; | |
a0ed51b3 | 585 | } |
a0ed51b3 | 586 | } |
5a34cab7 NC |
587 | item_is_utf8 = FALSE; |
588 | if (itemsize > fieldsize) | |
589 | itemsize = fieldsize; | |
590 | send = chophere = s + itemsize; | |
591 | while (s < send) { | |
592 | if (*s & ~31) | |
593 | gotsome = TRUE; | |
594 | else if (*s == '\n') | |
595 | break; | |
596 | s++; | |
597 | } | |
598 | itemsize = s - item; | |
599 | break; | |
a0ed51b3 | 600 | } |
a0d0e21e LW |
601 | |
602 | case FF_CHECKCHOP: | |
5a34cab7 NC |
603 | { |
604 | const char *s = item = SvPV_const(sv, len); | |
605 | itemsize = len; | |
606 | if (DO_UTF8(sv)) { | |
607 | itemsize = sv_len_utf8(sv); | |
608 | if (itemsize != (I32)len) { | |
609 | I32 itembytes; | |
610 | if (itemsize <= fieldsize) { | |
611 | const char *send = chophere = s + itemsize; | |
612 | while (s < send) { | |
613 | if (*s == '\r') { | |
614 | itemsize = s - item; | |
a0ed51b3 | 615 | chophere = s; |
a0ed51b3 | 616 | break; |
5a34cab7 NC |
617 | } |
618 | if (*s++ & ~31) | |
a0ed51b3 | 619 | gotsome = TRUE; |
a0ed51b3 | 620 | } |
a0ed51b3 | 621 | } |
5a34cab7 NC |
622 | else { |
623 | const char *send; | |
624 | itemsize = fieldsize; | |
625 | itembytes = itemsize; | |
626 | sv_pos_u2b(sv, &itembytes, 0); | |
627 | send = chophere = s + itembytes; | |
628 | while (s < send || (s == send && isSPACE(*s))) { | |
629 | if (isSPACE(*s)) { | |
630 | if (chopspace) | |
631 | chophere = s; | |
632 | if (*s == '\r') | |
633 | break; | |
634 | } | |
635 | else { | |
636 | if (*s & ~31) | |
637 | gotsome = TRUE; | |
638 | if (strchr(PL_chopset, *s)) | |
639 | chophere = s + 1; | |
640 | } | |
641 | s++; | |
642 | } | |
643 | itemsize = chophere - item; | |
644 | sv_pos_b2u(sv, &itemsize); | |
645 | } | |
646 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
647 | break; |
648 | } | |
a0d0e21e | 649 | } |
5a34cab7 NC |
650 | item_is_utf8 = FALSE; |
651 | if (itemsize <= fieldsize) { | |
652 | const char *const send = chophere = s + itemsize; | |
653 | while (s < send) { | |
654 | if (*s == '\r') { | |
655 | itemsize = s - item; | |
a0d0e21e | 656 | chophere = s; |
a0d0e21e | 657 | break; |
5a34cab7 NC |
658 | } |
659 | if (*s++ & ~31) | |
a0d0e21e | 660 | gotsome = TRUE; |
a0d0e21e | 661 | } |
a0d0e21e | 662 | } |
5a34cab7 NC |
663 | else { |
664 | const char *send; | |
665 | itemsize = fieldsize; | |
666 | send = chophere = s + itemsize; | |
667 | while (s < send || (s == send && isSPACE(*s))) { | |
668 | if (isSPACE(*s)) { | |
669 | if (chopspace) | |
670 | chophere = s; | |
671 | if (*s == '\r') | |
672 | break; | |
673 | } | |
674 | else { | |
675 | if (*s & ~31) | |
676 | gotsome = TRUE; | |
677 | if (strchr(PL_chopset, *s)) | |
678 | chophere = s + 1; | |
679 | } | |
680 | s++; | |
681 | } | |
682 | itemsize = chophere - item; | |
683 | } | |
684 | break; | |
a0d0e21e | 685 | } |
a0d0e21e LW |
686 | |
687 | case FF_SPACE: | |
688 | arg = fieldsize - itemsize; | |
689 | if (arg) { | |
690 | fieldsize -= arg; | |
691 | while (arg-- > 0) | |
692 | *t++ = ' '; | |
693 | } | |
694 | break; | |
695 | ||
696 | case FF_HALFSPACE: | |
697 | arg = fieldsize - itemsize; | |
698 | if (arg) { | |
699 | arg /= 2; | |
700 | fieldsize -= arg; | |
701 | while (arg-- > 0) | |
702 | *t++ = ' '; | |
703 | } | |
704 | break; | |
705 | ||
706 | case FF_ITEM: | |
8aa7beb6 DM |
707 | to_copy = itemsize; |
708 | source = (U8 *)item; | |
709 | trans = 1; | |
710 | if (item_is_utf8) { | |
711 | /* convert to_copy from chars to bytes */ | |
712 | U8 *s = source; | |
713 | while (to_copy--) | |
714 | s += UTF8SKIP(s); | |
715 | to_copy = s - source; | |
a0d0e21e | 716 | } |
8aa7beb6 | 717 | goto append; |
a0d0e21e LW |
718 | |
719 | case FF_CHOP: | |
5a34cab7 NC |
720 | { |
721 | const char *s = chophere; | |
722 | if (chopspace) { | |
af68e756 | 723 | while (isSPACE(*s)) |
5a34cab7 NC |
724 | s++; |
725 | } | |
726 | sv_chop(sv,s); | |
727 | SvSETMAGIC(sv); | |
728 | break; | |
a0d0e21e | 729 | } |
a0d0e21e | 730 | |
a1b95068 WL |
731 | case FF_LINESNGL: |
732 | chopspace = 0; | |
a0d0e21e | 733 | case FF_LINEGLOB: |
5a34cab7 | 734 | { |
e32383e2 | 735 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 736 | const char *s = item = SvPV_const(sv, len); |
7440a75b | 737 | const char *const send = s + len; |
7440a75b | 738 | |
f3f2f1a3 | 739 | item_is_utf8 = DO_UTF8(sv); |
a1137ee5 | 740 | if (!len) |
7440a75b | 741 | break; |
ea60cfe8 | 742 | trans = 0; |
0d21cefe | 743 | gotsome = TRUE; |
a1137ee5 | 744 | chophere = s + len; |
4ff700b9 DM |
745 | source = (U8 *) s; |
746 | to_copy = len; | |
0d21cefe DM |
747 | while (s < send) { |
748 | if (*s++ == '\n') { | |
749 | if (oneline) { | |
750 | to_copy = s - SvPVX_const(sv) - 1; | |
751 | chophere = s; | |
752 | break; | |
753 | } else { | |
754 | if (s == send) { | |
0d21cefe DM |
755 | to_copy--; |
756 | } else | |
757 | lines++; | |
1bd51a4c | 758 | } |
a0d0e21e | 759 | } |
0d21cefe | 760 | } |
a2c0032b DM |
761 | } |
762 | ||
ea60cfe8 DM |
763 | append: |
764 | /* append to_copy bytes from source to PL_formstring. | |
765 | * item_is_utf8 implies source is utf8. | |
766 | * if trans, translate certain characters during the copy */ | |
a2c0032b DM |
767 | { |
768 | U8 *tmp = NULL; | |
26e935cf | 769 | STRLEN grow = 0; |
0325ce87 DM |
770 | |
771 | SvCUR_set(PL_formtarget, | |
772 | t - SvPVX_const(PL_formtarget)); | |
773 | ||
0d21cefe DM |
774 | if (targ_is_utf8 && !item_is_utf8) { |
775 | source = tmp = bytes_to_utf8(source, &to_copy); | |
0d21cefe DM |
776 | } else { |
777 | if (item_is_utf8 && !targ_is_utf8) { | |
f5ada144 | 778 | U8 *s; |
0d21cefe | 779 | /* Upgrade targ to UTF8, and then we reduce it to |
0325ce87 DM |
780 | a problem we have a simple solution for. |
781 | Don't need get magic. */ | |
0d21cefe | 782 | sv_utf8_upgrade_nomg(PL_formtarget); |
0325ce87 | 783 | targ_is_utf8 = TRUE; |
f5ada144 DM |
784 | /* re-calculate linemark */ |
785 | s = (U8*)SvPVX(PL_formtarget); | |
26e935cf DM |
786 | /* the bytes we initially allocated to append the |
787 | * whole line may have been gobbled up during the | |
788 | * upgrade, so allocate a whole new line's worth | |
789 | * for safety */ | |
790 | grow = linemax; | |
f5ada144 DM |
791 | while (linemark--) |
792 | s += UTF8SKIP(s); | |
793 | linemark = s - (U8*)SvPVX(PL_formtarget); | |
e8e72d41 | 794 | } |
0d21cefe DM |
795 | /* Easy. They agree. */ |
796 | assert (item_is_utf8 == targ_is_utf8); | |
797 | } | |
26e935cf DM |
798 | if (!trans) |
799 | /* @* and ^* are the only things that can exceed | |
800 | * the linemax, so grow by the output size, plus | |
801 | * a whole new form's worth in case of any further | |
802 | * output */ | |
803 | grow = linemax + to_copy; | |
804 | if (grow) | |
805 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + grow + 1); | |
0d21cefe DM |
806 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
807 | ||
808 | Copy(source, t, to_copy, char); | |
ea60cfe8 | 809 | if (trans) { |
8aa7beb6 DM |
810 | /* blank out ~ or control chars, depending on trans. |
811 | * works on bytes not chars, so relies on not | |
812 | * matching utf8 continuation bytes */ | |
ea60cfe8 DM |
813 | U8 *s = (U8*)t; |
814 | U8 *send = s + to_copy; | |
815 | while (s < send) { | |
8aa7beb6 DM |
816 | const int ch = *s; |
817 | if (trans == '~' ? (ch == '~') : | |
818 | #ifdef EBCDIC | |
819 | iscntrl(ch) | |
820 | #else | |
821 | (!(ch & ~31)) | |
822 | #endif | |
823 | ) | |
ea60cfe8 DM |
824 | *s = ' '; |
825 | s++; | |
826 | } | |
827 | } | |
828 | ||
0d21cefe DM |
829 | t += to_copy; |
830 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
a1137ee5 | 831 | if (tmp) |
0d21cefe | 832 | Safefree(tmp); |
5a34cab7 | 833 | break; |
a0d0e21e | 834 | } |
a0d0e21e | 835 | |
a1b95068 WL |
836 | case FF_0DECIMAL: |
837 | arg = *fpc++; | |
838 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d | 839 | fmt = (const char *) |
a701009a | 840 | ((arg & FORM_NUM_POINT) ? |
10edeb5d | 841 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); |
a1b95068 | 842 | #else |
10edeb5d | 843 | fmt = (const char *) |
a701009a | 844 | ((arg & FORM_NUM_POINT) ? |
10edeb5d | 845 | "%#0*.*f" : "%0*.*f"); |
a1b95068 WL |
846 | #endif |
847 | goto ff_dec; | |
a0d0e21e | 848 | case FF_DECIMAL: |
a0d0e21e | 849 | arg = *fpc++; |
65202027 | 850 | #if defined(USE_LONG_DOUBLE) |
10edeb5d | 851 | fmt = (const char *) |
a701009a | 852 | ((arg & FORM_NUM_POINT) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); |
65202027 | 853 | #else |
10edeb5d | 854 | fmt = (const char *) |
a701009a | 855 | ((arg & FORM_NUM_POINT) ? "%#*.*f" : "%*.*f"); |
65202027 | 856 | #endif |
a1b95068 | 857 | ff_dec: |
784707d5 JP |
858 | /* If the field is marked with ^ and the value is undefined, |
859 | blank it out. */ | |
a701009a | 860 | if ((arg & FORM_NUM_BLANK) && !SvOK(sv)) { |
784707d5 JP |
861 | arg = fieldsize; |
862 | while (arg--) | |
863 | *t++ = ' '; | |
864 | break; | |
865 | } | |
866 | gotsome = TRUE; | |
867 | value = SvNV(sv); | |
a1b95068 | 868 | /* overflow evidence */ |
bfed75c6 | 869 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
870 | arg = fieldsize; |
871 | while (arg--) | |
872 | *t++ = '#'; | |
873 | break; | |
874 | } | |
784707d5 JP |
875 | /* Formats aren't yet marked for locales, so assume "yes". */ |
876 | { | |
877 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
a701009a DM |
878 | arg &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
879 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg, value); | |
784707d5 JP |
880 | RESTORE_NUMERIC_STANDARD(); |
881 | } | |
882 | t += fieldsize; | |
883 | break; | |
a1b95068 | 884 | |
a0d0e21e LW |
885 | case FF_NEWLINE: |
886 | f++; | |
f5ada144 | 887 | while (t-- > (SvPVX(PL_formtarget) + linemark) && *t == ' ') ; |
a0d0e21e LW |
888 | t++; |
889 | *t++ = '\n'; | |
890 | break; | |
891 | ||
892 | case FF_BLANK: | |
893 | arg = *fpc++; | |
894 | if (gotsome) { | |
895 | if (arg) { /* repeat until fields exhausted? */ | |
11f9eeaf DM |
896 | fpc--; |
897 | goto end; | |
a0d0e21e LW |
898 | } |
899 | } | |
900 | else { | |
f5ada144 | 901 | t = SvPVX(PL_formtarget) + linemark; |
a0d0e21e LW |
902 | lines--; |
903 | } | |
904 | break; | |
905 | ||
906 | case FF_MORE: | |
5a34cab7 NC |
907 | { |
908 | const char *s = chophere; | |
909 | const char *send = item + len; | |
910 | if (chopspace) { | |
af68e756 | 911 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 912 | s++; |
a0d0e21e | 913 | } |
5a34cab7 NC |
914 | if (s < send) { |
915 | char *s1; | |
916 | arg = fieldsize - itemsize; | |
917 | if (arg) { | |
918 | fieldsize -= arg; | |
919 | while (arg-- > 0) | |
920 | *t++ = ' '; | |
921 | } | |
922 | s1 = t - 3; | |
923 | if (strnEQ(s1," ",3)) { | |
924 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
925 | s1--; | |
926 | } | |
927 | *s1++ = '.'; | |
928 | *s1++ = '.'; | |
929 | *s1++ = '.'; | |
a0d0e21e | 930 | } |
5a34cab7 | 931 | break; |
a0d0e21e | 932 | } |
a0d0e21e | 933 | case FF_END: |
11f9eeaf | 934 | end: |
bf2bec63 | 935 | assert(t < SvPVX_const(PL_formtarget) + SvLEN(PL_formtarget)); |
a0d0e21e | 936 | *t = '\0'; |
b15aece3 | 937 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
938 | if (targ_is_utf8) |
939 | SvUTF8_on(PL_formtarget); | |
3280af22 | 940 | FmLINES(PL_formtarget) += lines; |
a0d0e21e | 941 | SP = ORIGMARK; |
11f9eeaf DM |
942 | if (fpc[-1] == FF_BLANK) |
943 | RETURNOP(cLISTOP->op_first); | |
944 | else | |
945 | RETPUSHYES; | |
a0d0e21e LW |
946 | } |
947 | } | |
948 | } | |
949 | ||
950 | PP(pp_grepstart) | |
951 | { | |
27da23d5 | 952 | dVAR; dSP; |
a0d0e21e LW |
953 | SV *src; |
954 | ||
3280af22 | 955 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 956 | (void)POPMARK; |
54310121 | 957 | if (GIMME_V == G_SCALAR) |
6e449a3a | 958 | mXPUSHi(0); |
533c011a | 959 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 960 | } |
3280af22 | 961 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
897d3989 NC |
962 | Perl_pp_pushmark(aTHX); /* push dst */ |
963 | Perl_pp_pushmark(aTHX); /* push src */ | |
d343c3ef | 964 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
965 | |
966 | SAVETMPS; | |
59f00321 RGS |
967 | if (PL_op->op_private & OPpGREP_LEX) |
968 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
969 | else | |
970 | SAVE_DEFSV; | |
d343c3ef | 971 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 972 | SAVEVPTR(PL_curpm); |
a0d0e21e | 973 | |
3280af22 | 974 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 975 | SvTEMP_off(src); |
59f00321 RGS |
976 | if (PL_op->op_private & OPpGREP_LEX) |
977 | PAD_SVl(PL_op->op_targ) = src; | |
978 | else | |
414bf5ae | 979 | DEFSV_set(src); |
a0d0e21e LW |
980 | |
981 | PUTBACK; | |
533c011a | 982 | if (PL_op->op_type == OP_MAPSTART) |
897d3989 | 983 | Perl_pp_pushmark(aTHX); /* push top */ |
533c011a | 984 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
985 | } |
986 | ||
a0d0e21e LW |
987 | PP(pp_mapwhile) |
988 | { | |
27da23d5 | 989 | dVAR; dSP; |
f54cb97a | 990 | const I32 gimme = GIMME_V; |
544f3153 | 991 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
992 | I32 count; |
993 | I32 shift; | |
994 | SV** src; | |
ac27b0f5 | 995 | SV** dst; |
a0d0e21e | 996 | |
544f3153 | 997 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 998 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
999 | |
1000 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1001 | if (items && gimme != G_VOID) { |
544f3153 GS |
1002 | /* might need to make room back there first */ |
1003 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1004 | /* XXX this implementation is very pessimal because the stack | |
1005 | * is repeatedly extended for every set of items. Is possible | |
1006 | * to do this without any stack extension or copying at all | |
1007 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1008 | * (like foreach does). --gsar */ |
544f3153 GS |
1009 | |
1010 | /* everything in the stack after the destination list moves | |
1011 | * towards the end the stack by the amount of room needed */ | |
1012 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1013 | ||
1014 | /* items to shift up (accounting for the moved source pointer) */ | |
1015 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1016 | |
1017 | /* This optimization is by Ben Tilly and it does | |
1018 | * things differently from what Sarathy (gsar) | |
1019 | * is describing. The downside of this optimization is | |
1020 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1021 | * to the Perl stack, but on the other hand this | |
1022 | * shouldn't be a problem. If Sarathy's idea gets | |
1023 | * implemented, this optimization should become | |
1024 | * irrelevant. --jhi */ | |
1025 | if (shift < count) | |
1026 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1027 | |
924508f0 GS |
1028 | EXTEND(SP,shift); |
1029 | src = SP; | |
1030 | dst = (SP += shift); | |
3280af22 NIS |
1031 | PL_markstack_ptr[-1] += shift; |
1032 | *PL_markstack_ptr += shift; | |
544f3153 | 1033 | while (count--) |
a0d0e21e LW |
1034 | *dst-- = *src--; |
1035 | } | |
544f3153 | 1036 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1037 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 | 1038 | if (gimme == G_ARRAY) { |
b2a2a901 DM |
1039 | /* add returned items to the collection (making mortal copies |
1040 | * if necessary), then clear the current temps stack frame | |
1041 | * *except* for those items. We do this splicing the items | |
1042 | * into the start of the tmps frame (so some items may be on | |
59d53fd6 | 1043 | * the tmps stack twice), then moving PL_tmps_floor above |
b2a2a901 DM |
1044 | * them, then freeing the frame. That way, the only tmps that |
1045 | * accumulate over iterations are the return values for map. | |
1046 | * We have to do to this way so that everything gets correctly | |
1047 | * freed if we die during the map. | |
1048 | */ | |
1049 | I32 tmpsbase; | |
1050 | I32 i = items; | |
1051 | /* make space for the slice */ | |
1052 | EXTEND_MORTAL(items); | |
1053 | tmpsbase = PL_tmps_floor + 1; | |
1054 | Move(PL_tmps_stack + tmpsbase, | |
1055 | PL_tmps_stack + tmpsbase + items, | |
1056 | PL_tmps_ix - PL_tmps_floor, | |
1057 | SV*); | |
1058 | PL_tmps_ix += items; | |
1059 | ||
1060 | while (i-- > 0) { | |
1061 | SV *sv = POPs; | |
1062 | if (!SvTEMP(sv)) | |
1063 | sv = sv_mortalcopy(sv); | |
1064 | *dst-- = sv; | |
1065 | PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv); | |
1066 | } | |
1067 | /* clear the stack frame except for the items */ | |
1068 | PL_tmps_floor += items; | |
1069 | FREETMPS; | |
1070 | /* FREETMPS may have cleared the TEMP flag on some of the items */ | |
1071 | i = items; | |
1072 | while (i-- > 0) | |
1073 | SvTEMP_on(PL_tmps_stack[--tmpsbase]); | |
22023b26 | 1074 | } |
bfed75c6 | 1075 | else { |
22023b26 TP |
1076 | /* scalar context: we don't care about which values map returns |
1077 | * (we use undef here). And so we certainly don't want to do mortal | |
1078 | * copies of meaningless values. */ | |
1079 | while (items-- > 0) { | |
b988aa42 | 1080 | (void)POPs; |
22023b26 TP |
1081 | *dst-- = &PL_sv_undef; |
1082 | } | |
b2a2a901 | 1083 | FREETMPS; |
22023b26 | 1084 | } |
a0d0e21e | 1085 | } |
b2a2a901 DM |
1086 | else { |
1087 | FREETMPS; | |
1088 | } | |
d343c3ef | 1089 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1090 | |
1091 | /* All done yet? */ | |
3280af22 | 1092 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1093 | |
1094 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1095 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1096 | (void)POPMARK; /* pop src */ |
3280af22 | 1097 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1098 | (void)POPMARK; /* pop dst */ |
3280af22 | 1099 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1100 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1101 | if (PL_op->op_private & OPpGREP_LEX) { |
1102 | SV* sv = sv_newmortal(); | |
1103 | sv_setiv(sv, items); | |
1104 | PUSHs(sv); | |
1105 | } | |
1106 | else { | |
1107 | dTARGET; | |
1108 | XPUSHi(items); | |
1109 | } | |
a0d0e21e | 1110 | } |
54310121 | 1111 | else if (gimme == G_ARRAY) |
1112 | SP += items; | |
a0d0e21e LW |
1113 | RETURN; |
1114 | } | |
1115 | else { | |
1116 | SV *src; | |
1117 | ||
d343c3ef | 1118 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1119 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1120 | |
544f3153 | 1121 | /* set $_ to the new source item */ |
3280af22 | 1122 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1123 | SvTEMP_off(src); |
59f00321 RGS |
1124 | if (PL_op->op_private & OPpGREP_LEX) |
1125 | PAD_SVl(PL_op->op_targ) = src; | |
1126 | else | |
414bf5ae | 1127 | DEFSV_set(src); |
a0d0e21e LW |
1128 | |
1129 | RETURNOP(cLOGOP->op_other); | |
1130 | } | |
1131 | } | |
1132 | ||
a0d0e21e LW |
1133 | /* Range stuff. */ |
1134 | ||
1135 | PP(pp_range) | |
1136 | { | |
97aff369 | 1137 | dVAR; |
a0d0e21e | 1138 | if (GIMME == G_ARRAY) |
1a67a97c | 1139 | return NORMAL; |
538573f7 | 1140 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1141 | return cLOGOP->op_other; |
538573f7 | 1142 | else |
1a67a97c | 1143 | return NORMAL; |
a0d0e21e LW |
1144 | } |
1145 | ||
1146 | PP(pp_flip) | |
1147 | { | |
97aff369 | 1148 | dVAR; |
39644a26 | 1149 | dSP; |
a0d0e21e LW |
1150 | |
1151 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1152 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1153 | } |
1154 | else { | |
1155 | dTOPss; | |
44f8325f | 1156 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1157 | int flip = 0; |
790090df | 1158 | |
bfed75c6 | 1159 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1160 | if (GvIO(PL_last_in_gv)) { |
1161 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1162 | } | |
1163 | else { | |
fafc274c | 1164 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1165 | if (gv && GvSV(gv)) |
1166 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1167 | } |
bfed75c6 AL |
1168 | } else { |
1169 | flip = SvTRUE(sv); | |
1170 | } | |
1171 | if (flip) { | |
a0d0e21e | 1172 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1173 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1174 | sv_setiv(targ, 1); |
3e3baf6d | 1175 | SETs(targ); |
a0d0e21e LW |
1176 | RETURN; |
1177 | } | |
1178 | else { | |
1179 | sv_setiv(targ, 0); | |
924508f0 | 1180 | SP--; |
1a67a97c | 1181 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1182 | } |
1183 | } | |
76f68e9b | 1184 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1185 | SETs(targ); |
1186 | RETURN; | |
1187 | } | |
1188 | } | |
1189 | ||
8e9bbdb9 RGS |
1190 | /* This code tries to decide if "$left .. $right" should use the |
1191 | magical string increment, or if the range is numeric (we make | |
1192 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1193 | ||
1194 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1195 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1196 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1197 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1198 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1199 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1200 | |
a0d0e21e LW |
1201 | PP(pp_flop) |
1202 | { | |
97aff369 | 1203 | dVAR; dSP; |
a0d0e21e LW |
1204 | |
1205 | if (GIMME == G_ARRAY) { | |
1206 | dPOPPOPssrl; | |
86cb7173 | 1207 | |
5b295bef RD |
1208 | SvGETMAGIC(left); |
1209 | SvGETMAGIC(right); | |
a0d0e21e | 1210 | |
8e9bbdb9 | 1211 | if (RANGE_IS_NUMERIC(left,right)) { |
eb578fdb | 1212 | IV i, j; |
901017d6 | 1213 | IV max; |
f52e41ad FC |
1214 | if ((SvOK(left) && SvNV_nomg(left) < IV_MIN) || |
1215 | (SvOK(right) && SvNV_nomg(right) > IV_MAX)) | |
d470f89e | 1216 | DIE(aTHX_ "Range iterator outside integer range"); |
f52e41ad FC |
1217 | i = SvIV_nomg(left); |
1218 | max = SvIV_nomg(right); | |
bbce6d69 | 1219 | if (max >= i) { |
c1ab3db2 AK |
1220 | j = max - i + 1; |
1221 | EXTEND_MORTAL(j); | |
1222 | EXTEND(SP, j); | |
bbce6d69 | 1223 | } |
c1ab3db2 AK |
1224 | else |
1225 | j = 0; | |
1226 | while (j--) { | |
901017d6 | 1227 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1228 | PUSHs(sv); |
1229 | } | |
1230 | } | |
1231 | else { | |
3c323193 FC |
1232 | STRLEN len, llen; |
1233 | const char * const lpv = SvPV_nomg_const(left, llen); | |
f52e41ad | 1234 | const char * const tmps = SvPV_nomg_const(right, len); |
a0d0e21e | 1235 | |
3c323193 | 1236 | SV *sv = newSVpvn_flags(lpv, llen, SvUTF8(left)|SVs_TEMP); |
89ea2908 | 1237 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1238 | XPUSHs(sv); |
b15aece3 | 1239 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1240 | break; |
a0d0e21e LW |
1241 | sv = sv_2mortal(newSVsv(sv)); |
1242 | sv_inc(sv); | |
1243 | } | |
a0d0e21e LW |
1244 | } |
1245 | } | |
1246 | else { | |
1247 | dTOPss; | |
901017d6 | 1248 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1249 | int flop = 0; |
a0d0e21e | 1250 | sv_inc(targ); |
4e3399f9 YST |
1251 | |
1252 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1253 | if (GvIO(PL_last_in_gv)) { | |
1254 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1255 | } | |
1256 | else { | |
fafc274c | 1257 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1258 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1259 | } | |
1260 | } | |
1261 | else { | |
1262 | flop = SvTRUE(sv); | |
1263 | } | |
1264 | ||
1265 | if (flop) { | |
a0d0e21e | 1266 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1267 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1268 | } |
1269 | SETs(targ); | |
1270 | } | |
1271 | ||
1272 | RETURN; | |
1273 | } | |
1274 | ||
1275 | /* Control. */ | |
1276 | ||
27da23d5 | 1277 | static const char * const context_name[] = { |
515afda2 | 1278 | "pseudo-block", |
f31522f3 | 1279 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1280 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1281 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1282 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1283 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1284 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1285 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1286 | "subroutine", |
76753e7f | 1287 | "format", |
515afda2 | 1288 | "eval", |
515afda2 | 1289 | "substitution", |
515afda2 NC |
1290 | }; |
1291 | ||
76e3520e | 1292 | STATIC I32 |
5db1eb8d | 1293 | S_dopoptolabel(pTHX_ const char *label, STRLEN len, U32 flags) |
a0d0e21e | 1294 | { |
97aff369 | 1295 | dVAR; |
eb578fdb | 1296 | I32 i; |
a0d0e21e | 1297 | |
7918f24d NC |
1298 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1299 | ||
a0d0e21e | 1300 | for (i = cxstack_ix; i >= 0; i--) { |
eb578fdb | 1301 | const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1302 | switch (CxTYPE(cx)) { |
a0d0e21e | 1303 | case CXt_SUBST: |
a0d0e21e | 1304 | case CXt_SUB: |
7766f137 | 1305 | case CXt_FORMAT: |
a0d0e21e | 1306 | case CXt_EVAL: |
0a753a76 | 1307 | case CXt_NULL: |
dcbac5bb | 1308 | /* diag_listed_as: Exiting subroutine via %s */ |
a2a5de95 NC |
1309 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1310 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1311 | if (CxTYPE(cx) == CXt_NULL) |
1312 | return -1; | |
1313 | break; | |
c6fdafd0 | 1314 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1315 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1316 | case CXt_LOOP_FOR: |
1317 | case CXt_LOOP_PLAIN: | |
7e8f1eac | 1318 | { |
5db1eb8d BF |
1319 | STRLEN cx_label_len = 0; |
1320 | U32 cx_label_flags = 0; | |
1321 | const char *cx_label = CxLABEL_len_flags(cx, &cx_label_len, &cx_label_flags); | |
1322 | if (!cx_label || !( | |
1323 | ( (cx_label_flags & SVf_UTF8) != (flags & SVf_UTF8) ) ? | |
1324 | (flags & SVf_UTF8) | |
1325 | ? (bytes_cmp_utf8( | |
1326 | (const U8*)cx_label, cx_label_len, | |
1327 | (const U8*)label, len) == 0) | |
1328 | : (bytes_cmp_utf8( | |
1329 | (const U8*)label, len, | |
1330 | (const U8*)cx_label, cx_label_len) == 0) | |
eade7155 BF |
1331 | : (len == cx_label_len && ((cx_label == label) |
1332 | || memEQ(cx_label, label, len))) )) { | |
1c98cc53 | 1333 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1334 | (long)i, cx_label)); |
a0d0e21e LW |
1335 | continue; |
1336 | } | |
1c98cc53 | 1337 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1338 | return i; |
7e8f1eac | 1339 | } |
a0d0e21e LW |
1340 | } |
1341 | } | |
1342 | return i; | |
1343 | } | |
1344 | ||
0d863452 RH |
1345 | |
1346 | ||
e50aee73 | 1347 | I32 |
864dbfa3 | 1348 | Perl_dowantarray(pTHX) |
e50aee73 | 1349 | { |
97aff369 | 1350 | dVAR; |
f54cb97a | 1351 | const I32 gimme = block_gimme(); |
54310121 | 1352 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1353 | } | |
1354 | ||
1355 | I32 | |
864dbfa3 | 1356 | Perl_block_gimme(pTHX) |
54310121 | 1357 | { |
97aff369 | 1358 | dVAR; |
06b5626a | 1359 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1360 | if (cxix < 0) |
46fc3d4c | 1361 | return G_VOID; |
e50aee73 | 1362 | |
54310121 | 1363 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1364 | case G_VOID: |
1365 | return G_VOID; | |
54310121 | 1366 | case G_SCALAR: |
e50aee73 | 1367 | return G_SCALAR; |
54310121 | 1368 | case G_ARRAY: |
1369 | return G_ARRAY; | |
1370 | default: | |
cea2e8a9 | 1371 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
118e2215 | 1372 | assert(0); /* NOTREACHED */ |
d2719217 | 1373 | return 0; |
54310121 | 1374 | } |
e50aee73 AD |
1375 | } |
1376 | ||
78f9721b SM |
1377 | I32 |
1378 | Perl_is_lvalue_sub(pTHX) | |
1379 | { | |
97aff369 | 1380 | dVAR; |
06b5626a | 1381 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1382 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1383 | ||
bafb2adc NC |
1384 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1385 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1386 | else |
1387 | return 0; | |
1388 | } | |
1389 | ||
777d9014 FC |
1390 | /* only used by PUSHSUB */ |
1391 | I32 | |
1392 | Perl_was_lvalue_sub(pTHX) | |
1393 | { | |
1394 | dVAR; | |
1395 | const I32 cxix = dopoptosub(cxstack_ix-1); | |
1396 | assert(cxix >= 0); /* We should only be called from inside subs */ | |
1397 | ||
1398 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) | |
1399 | return CxLVAL(cxstack + cxix); | |
1400 | else | |
1401 | return 0; | |
1402 | } | |
1403 | ||
76e3520e | 1404 | STATIC I32 |
901017d6 | 1405 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1406 | { |
97aff369 | 1407 | dVAR; |
a0d0e21e | 1408 | I32 i; |
7918f24d NC |
1409 | |
1410 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1411 | ||
a0d0e21e | 1412 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1413 | const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1414 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1415 | default: |
1416 | continue; | |
1417 | case CXt_EVAL: | |
1418 | case CXt_SUB: | |
7766f137 | 1419 | case CXt_FORMAT: |
1c98cc53 | 1420 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1421 | return i; |
1422 | } | |
1423 | } | |
1424 | return i; | |
1425 | } | |
1426 | ||
76e3520e | 1427 | STATIC I32 |
cea2e8a9 | 1428 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1429 | { |
97aff369 | 1430 | dVAR; |
a0d0e21e | 1431 | I32 i; |
a0d0e21e | 1432 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1433 | const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1434 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1435 | default: |
1436 | continue; | |
1437 | case CXt_EVAL: | |
1c98cc53 | 1438 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1439 | return i; |
1440 | } | |
1441 | } | |
1442 | return i; | |
1443 | } | |
1444 | ||
76e3520e | 1445 | STATIC I32 |
cea2e8a9 | 1446 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1447 | { |
97aff369 | 1448 | dVAR; |
a0d0e21e | 1449 | I32 i; |
a0d0e21e | 1450 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1451 | const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1452 | switch (CxTYPE(cx)) { |
a0d0e21e | 1453 | case CXt_SUBST: |
a0d0e21e | 1454 | case CXt_SUB: |
7766f137 | 1455 | case CXt_FORMAT: |
a0d0e21e | 1456 | case CXt_EVAL: |
0a753a76 | 1457 | case CXt_NULL: |
dcbac5bb | 1458 | /* diag_listed_as: Exiting subroutine via %s */ |
a2a5de95 NC |
1459 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1460 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1461 | if ((CxTYPE(cx)) == CXt_NULL) |
1462 | return -1; | |
1463 | break; | |
c6fdafd0 | 1464 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1465 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1466 | case CXt_LOOP_FOR: |
1467 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1468 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1469 | return i; |
1470 | } | |
1471 | } | |
1472 | return i; | |
1473 | } | |
1474 | ||
0d863452 RH |
1475 | STATIC I32 |
1476 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1477 | { | |
97aff369 | 1478 | dVAR; |
0d863452 RH |
1479 | I32 i; |
1480 | for (i = startingblock; i >= 0; i--) { | |
eb578fdb | 1481 | const PERL_CONTEXT *cx = &cxstack[i]; |
0d863452 RH |
1482 | switch (CxTYPE(cx)) { |
1483 | default: | |
1484 | continue; | |
1485 | case CXt_GIVEN: | |
1c98cc53 | 1486 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1487 | return i; |
3b719c58 NC |
1488 | case CXt_LOOP_PLAIN: |
1489 | assert(!CxFOREACHDEF(cx)); | |
1490 | break; | |
c6fdafd0 | 1491 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1492 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1493 | case CXt_LOOP_FOR: |
0d863452 | 1494 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1495 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1496 | return i; |
1497 | } | |
1498 | } | |
1499 | } | |
1500 | return i; | |
1501 | } | |
1502 | ||
1503 | STATIC I32 | |
1504 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1505 | { | |
97aff369 | 1506 | dVAR; |
0d863452 RH |
1507 | I32 i; |
1508 | for (i = startingblock; i >= 0; i--) { | |
eb578fdb | 1509 | const PERL_CONTEXT *cx = &cxstack[i]; |
0d863452 RH |
1510 | switch (CxTYPE(cx)) { |
1511 | default: | |
1512 | continue; | |
1513 | case CXt_WHEN: | |
1c98cc53 | 1514 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1515 | return i; |
1516 | } | |
1517 | } | |
1518 | return i; | |
1519 | } | |
1520 | ||
a0d0e21e | 1521 | void |
864dbfa3 | 1522 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1523 | { |
97aff369 | 1524 | dVAR; |
a0d0e21e LW |
1525 | I32 optype; |
1526 | ||
f144f1e3 DM |
1527 | if (!PL_curstackinfo) /* can happen if die during thread cloning */ |
1528 | return; | |
1529 | ||
a0d0e21e | 1530 | while (cxstack_ix > cxix) { |
b0d9ce38 | 1531 | SV *sv; |
eb578fdb | 1532 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1533 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1534 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1535 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1536 | case CXt_SUBST: |
1537 | POPSUBST(cx); | |
1538 | continue; /* not break */ | |
a0d0e21e | 1539 | case CXt_SUB: |
b0d9ce38 GS |
1540 | POPSUB(cx,sv); |
1541 | LEAVESUB(sv); | |
a0d0e21e LW |
1542 | break; |
1543 | case CXt_EVAL: | |
1544 | POPEVAL(cx); | |
1545 | break; | |
c6fdafd0 | 1546 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1547 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1548 | case CXt_LOOP_FOR: |
1549 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1550 | POPLOOP(cx); |
1551 | break; | |
0a753a76 | 1552 | case CXt_NULL: |
a0d0e21e | 1553 | break; |
7766f137 GS |
1554 | case CXt_FORMAT: |
1555 | POPFORMAT(cx); | |
1556 | break; | |
a0d0e21e | 1557 | } |
c90c0ff4 | 1558 | cxstack_ix--; |
a0d0e21e | 1559 | } |
1b6737cc | 1560 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1561 | } |
1562 | ||
5a844595 GS |
1563 | void |
1564 | Perl_qerror(pTHX_ SV *err) | |
1565 | { | |
97aff369 | 1566 | dVAR; |
7918f24d NC |
1567 | |
1568 | PERL_ARGS_ASSERT_QERROR; | |
1569 | ||
6b2fb389 DM |
1570 | if (PL_in_eval) { |
1571 | if (PL_in_eval & EVAL_KEEPERR) { | |
ecad31f0 BF |
1572 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %"SVf, |
1573 | SVfARG(err)); | |
6b2fb389 DM |
1574 | } |
1575 | else | |
1576 | sv_catsv(ERRSV, err); | |
1577 | } | |
5a844595 GS |
1578 | else if (PL_errors) |
1579 | sv_catsv(PL_errors, err); | |
1580 | else | |
be2597df | 1581 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1582 | if (PL_parser) |
1583 | ++PL_parser->error_count; | |
5a844595 GS |
1584 | } |
1585 | ||
bb4c52e0 | 1586 | void |
c5df3096 | 1587 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1588 | { |
27da23d5 | 1589 | dVAR; |
c5df3096 | 1590 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1591 | U8 in_eval = PL_in_eval; |
c5df3096 | 1592 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1593 | |
96d9b9cd | 1594 | if (in_eval) { |
a0d0e21e | 1595 | I32 cxix; |
a0d0e21e | 1596 | I32 gimme; |
a0d0e21e | 1597 | |
22a30693 Z |
1598 | /* |
1599 | * Historically, perl used to set ERRSV ($@) early in the die | |
1600 | * process and rely on it not getting clobbered during unwinding. | |
1601 | * That sucked, because it was liable to get clobbered, so the | |
1602 | * setting of ERRSV used to emit the exception from eval{} has | |
1603 | * been moved to much later, after unwinding (see just before | |
1604 | * JMPENV_JUMP below). However, some modules were relying on the | |
1605 | * early setting, by examining $@ during unwinding to use it as | |
1606 | * a flag indicating whether the current unwinding was caused by | |
1607 | * an exception. It was never a reliable flag for that purpose, | |
1608 | * being totally open to false positives even without actual | |
1609 | * clobberage, but was useful enough for production code to | |
1610 | * semantically rely on it. | |
1611 | * | |
1612 | * We'd like to have a proper introspective interface that | |
1613 | * explicitly describes the reason for whatever unwinding | |
1614 | * operations are currently in progress, so that those modules | |
1615 | * work reliably and $@ isn't further overloaded. But we don't | |
1616 | * have one yet. In its absence, as a stopgap measure, ERRSV is | |
1617 | * now *additionally* set here, before unwinding, to serve as the | |
1618 | * (unreliable) flag that it used to. | |
1619 | * | |
1620 | * This behaviour is temporary, and should be removed when a | |
1621 | * proper way to detect exceptional unwinding has been developed. | |
1622 | * As of 2010-12, the authors of modules relying on the hack | |
1623 | * are aware of the issue, because the modules failed on | |
1624 | * perls 5.13.{1..7} which had late setting of $@ without this | |
1625 | * early-setting hack. | |
1626 | */ | |
1627 | if (!(in_eval & EVAL_KEEPERR)) { | |
1628 | SvTEMP_off(exceptsv); | |
1629 | sv_setsv(ERRSV, exceptsv); | |
1630 | } | |
1631 | ||
5a844595 GS |
1632 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1633 | && PL_curstackinfo->si_prev) | |
1634 | { | |
bac4b2ad | 1635 | dounwind(-1); |
d3acc0f7 | 1636 | POPSTACK; |
bac4b2ad | 1637 | } |
e336de0d | 1638 | |
a0d0e21e LW |
1639 | if (cxix >= 0) { |
1640 | I32 optype; | |
b6494f15 | 1641 | SV *namesv; |
eb578fdb | 1642 | PERL_CONTEXT *cx; |
901017d6 | 1643 | SV **newsp; |
8f89e5a9 Z |
1644 | COP *oldcop; |
1645 | JMPENV *restartjmpenv; | |
1646 | OP *restartop; | |
a0d0e21e LW |
1647 | |
1648 | if (cxix < cxstack_ix) | |
1649 | dounwind(cxix); | |
1650 | ||
3280af22 | 1651 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1652 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1653 | STRLEN msglen; |
96d9b9cd | 1654 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1655 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1656 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1657 | my_exit(1); |
1658 | } | |
1659 | POPEVAL(cx); | |
b6494f15 | 1660 | namesv = cx->blk_eval.old_namesv; |
8f89e5a9 Z |
1661 | oldcop = cx->blk_oldcop; |
1662 | restartjmpenv = cx->blk_eval.cur_top_env; | |
1663 | restartop = cx->blk_eval.retop; | |
a0d0e21e LW |
1664 | |
1665 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1666 | *++newsp = &PL_sv_undef; |
1667 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1668 | |
1669 | LEAVE; | |
748a9306 | 1670 | |
7fb6a879 GS |
1671 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1672 | * XXX it might be better to find a way to avoid messing with | |
1673 | * PL_curcop in save_re_context() instead, but this is a more | |
1674 | * minimal fix --GSAR */ | |
8f89e5a9 | 1675 | PL_curcop = oldcop; |
7fb6a879 | 1676 | |
7a2e2cd6 | 1677 | if (optype == OP_REQUIRE) { |
b6494f15 | 1678 | (void)hv_store(GvHVn(PL_incgv), |
ecad31f0 | 1679 | SvPVX_const(namesv), |
c60dbbc3 | 1680 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
27bcc0a7 | 1681 | &PL_sv_undef, 0); |
27e90453 DM |
1682 | /* note that unlike pp_entereval, pp_require isn't |
1683 | * supposed to trap errors. So now that we've popped the | |
1684 | * EVAL that pp_require pushed, and processed the error | |
1685 | * message, rethrow the error */ | |
ecad31f0 BF |
1686 | Perl_croak(aTHX_ "%"SVf"Compilation failed in require", |
1687 | SVfARG(exceptsv ? exceptsv : newSVpvs_flags("Unknown error\n", | |
1688 | SVs_TEMP))); | |
7a2e2cd6 | 1689 | } |
c5df3096 | 1690 | if (in_eval & EVAL_KEEPERR) { |
ecad31f0 BF |
1691 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %"SVf, |
1692 | SVfARG(exceptsv)); | |
96d9b9cd Z |
1693 | } |
1694 | else { | |
1695 | sv_setsv(ERRSV, exceptsv); | |
1696 | } | |
8f89e5a9 Z |
1697 | PL_restartjmpenv = restartjmpenv; |
1698 | PL_restartop = restartop; | |
bb4c52e0 | 1699 | JMPENV_JUMP(3); |
118e2215 | 1700 | assert(0); /* NOTREACHED */ |
a0d0e21e LW |
1701 | } |
1702 | } | |
87582a92 | 1703 | |
96d9b9cd | 1704 | write_to_stderr(exceptsv); |
f86702cc | 1705 | my_failure_exit(); |
118e2215 | 1706 | assert(0); /* NOTREACHED */ |
a0d0e21e LW |
1707 | } |
1708 | ||
1709 | PP(pp_xor) | |
1710 | { | |
97aff369 | 1711 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1712 | if (SvTRUE(left) != SvTRUE(right)) |
1713 | RETSETYES; | |
1714 | else | |
1715 | RETSETNO; | |
1716 | } | |
1717 | ||
8dff4fc5 BM |
1718 | /* |
1719 | =for apidoc caller_cx | |
1720 | ||
1721 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1722 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1723 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1724 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1725 | immediately-surrounding Perl code. | |
1726 | ||
1727 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1728 | behalf of the debugger. If the stack frame requested was a sub called by | |
1729 | C<DB::sub>, the return value will be the frame for the call to | |
1730 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1731 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1732 | frame for the sub call itself. | |
1733 | ||
1734 | =cut | |
1735 | */ | |
1736 | ||
1737 | const PERL_CONTEXT * | |
1738 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1739 | { |
eb578fdb KW |
1740 | I32 cxix = dopoptosub(cxstack_ix); |
1741 | const PERL_CONTEXT *cx; | |
1742 | const PERL_CONTEXT *ccstack = cxstack; | |
901017d6 | 1743 | const PERL_SI *top_si = PL_curstackinfo; |
27d41816 | 1744 | |
a0d0e21e | 1745 | for (;;) { |
2c375eb9 GS |
1746 | /* we may be in a higher stacklevel, so dig down deeper */ |
1747 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1748 | top_si = top_si->si_prev; | |
1749 | ccstack = top_si->si_cxstack; | |
1750 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1751 | } | |
8dff4fc5 BM |
1752 | if (cxix < 0) |
1753 | return NULL; | |
f2a7f298 DG |
1754 | /* caller() should not report the automatic calls to &DB::sub */ |
1755 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1756 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1757 | count++; |
1758 | if (!count--) | |
1759 | break; | |
2c375eb9 | 1760 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1761 | } |
2c375eb9 GS |
1762 | |
1763 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1764 | if (dbcxp) *dbcxp = cx; |
1765 | ||
7766f137 | 1766 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1767 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1768 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1769 | field below is defined for any cx. */ |
f2a7f298 DG |
1770 | /* caller() should not report the automatic calls to &DB::sub */ |
1771 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1772 | cx = &ccstack[dbcxix]; |
06a5b730 | 1773 | } |
1774 | ||
8dff4fc5 BM |
1775 | return cx; |
1776 | } | |
1777 | ||
1778 | PP(pp_caller) | |
1779 | { | |
1780 | dVAR; | |
1781 | dSP; | |
eb578fdb | 1782 | const PERL_CONTEXT *cx; |
8dff4fc5 BM |
1783 | const PERL_CONTEXT *dbcx; |
1784 | I32 gimme; | |
d527ce7c | 1785 | const HEK *stash_hek; |
8dff4fc5 | 1786 | I32 count = 0; |
ce0b554b | 1787 | bool has_arg = MAXARG && TOPs; |
8dff4fc5 | 1788 | |
ce0b554b FC |
1789 | if (MAXARG) { |
1790 | if (has_arg) | |
8dff4fc5 | 1791 | count = POPi; |
ce0b554b FC |
1792 | else (void)POPs; |
1793 | } | |
8dff4fc5 | 1794 | |
ce0b554b | 1795 | cx = caller_cx(count + !!(PL_op->op_private & OPpOFFBYONE), &dbcx); |
8dff4fc5 BM |
1796 | if (!cx) { |
1797 | if (GIMME != G_ARRAY) { | |
1798 | EXTEND(SP, 1); | |
1799 | RETPUSHUNDEF; | |
1800 | } | |
1801 | RETURN; | |
1802 | } | |
1803 | ||
fb55feef | 1804 | DEBUG_CX("CALLER"); |
d0279c7c | 1805 | assert(CopSTASH(cx->blk_oldcop)); |
e7886211 FC |
1806 | stash_hek = SvTYPE(CopSTASH(cx->blk_oldcop)) == SVt_PVHV |
1807 | ? HvNAME_HEK((HV*)CopSTASH(cx->blk_oldcop)) | |
1808 | : NULL; | |
a0d0e21e | 1809 | if (GIMME != G_ARRAY) { |
27d41816 | 1810 | EXTEND(SP, 1); |
d527ce7c | 1811 | if (!stash_hek) |
3280af22 | 1812 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1813 | else { |
1814 | dTARGET; | |
d527ce7c | 1815 | sv_sethek(TARG, stash_hek); |
49d8d3a1 MB |
1816 | PUSHs(TARG); |
1817 | } | |
a0d0e21e LW |
1818 | RETURN; |
1819 | } | |
a0d0e21e | 1820 | |
b3ca2e83 | 1821 | EXTEND(SP, 11); |
27d41816 | 1822 | |
d527ce7c | 1823 | if (!stash_hek) |
3280af22 | 1824 | PUSHs(&PL_sv_undef); |
d527ce7c BF |
1825 | else { |
1826 | dTARGET; | |
1827 | sv_sethek(TARG, stash_hek); | |
1828 | PUSHTARG; | |
1829 | } | |
6e449a3a MHM |
1830 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); |
1831 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
ce0b554b | 1832 | if (!has_arg) |
a0d0e21e | 1833 | RETURN; |
7766f137 | 1834 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1835 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1836 | /* So is ccstack[dbcxix]. */ |
81ed78b2 | 1837 | if (cvgv && isGV(cvgv)) { |
561b68a9 | 1838 | SV * const sv = newSV(0); |
c445ea15 | 1839 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1840 | mPUSHs(sv); |
bf38a478 | 1841 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1842 | } |
1843 | else { | |
84bafc02 | 1844 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1845 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1846 | } |
a0d0e21e LW |
1847 | } |
1848 | else { | |
84bafc02 | 1849 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1850 | mPUSHi(0); |
a0d0e21e | 1851 | } |
54310121 | 1852 | gimme = (I32)cx->blk_gimme; |
1853 | if (gimme == G_VOID) | |
3280af22 | 1854 | PUSHs(&PL_sv_undef); |
54310121 | 1855 | else |
98625aca | 1856 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1857 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1858 | /* eval STRING */ |
85a64632 | 1859 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
19bcb54e FC |
1860 | PUSHs(newSVpvn_flags(SvPVX(cx->blk_eval.cur_text), |
1861 | SvCUR(cx->blk_eval.cur_text)-2, | |
1862 | SvUTF8(cx->blk_eval.cur_text)|SVs_TEMP)); | |
3280af22 | 1863 | PUSHs(&PL_sv_no); |
0f79a09d | 1864 | } |
811a4de9 | 1865 | /* require */ |
0f79a09d | 1866 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1867 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1868 | PUSHs(&PL_sv_yes); |
06a5b730 | 1869 | } |
811a4de9 GS |
1870 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1871 | else { | |
1872 | PUSHs(&PL_sv_undef); | |
1873 | PUSHs(&PL_sv_undef); | |
1874 | } | |
4633a7c4 | 1875 | } |
a682de96 GS |
1876 | else { |
1877 | PUSHs(&PL_sv_undef); | |
1878 | PUSHs(&PL_sv_undef); | |
1879 | } | |
bafb2adc | 1880 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1881 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1882 | { |
66a1b24b AL |
1883 | AV * const ary = cx->blk_sub.argarray; |
1884 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1885 | |
e1a80902 | 1886 | Perl_init_dbargs(aTHX); |
a0d0e21e | 1887 | |
3280af22 NIS |
1888 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1889 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1890 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1891 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1892 | } |
f3aa04c2 GS |
1893 | /* XXX only hints propagated via op_private are currently |
1894 | * visible (others are not easily accessible, since they | |
1895 | * use the global PL_hints) */ | |
6e449a3a | 1896 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1897 | { |
1898 | SV * mask ; | |
72dc9ed5 | 1899 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1900 | |
ac27b0f5 | 1901 | if (old_warnings == pWARN_NONE || |
114bafba | 1902 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1903 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1904 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1905 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1906 | /* Get the bit mask for $warnings::Bits{all}, because | |
1907 | * it could have been extended by warnings::register */ | |
1908 | SV **bits_all; | |
6673a63c | 1909 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1910 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1911 | mask = newSVsv(*bits_all); |
1912 | } | |
1913 | else { | |
1914 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1915 | } | |
1916 | } | |
e476b1b5 | 1917 | else |
72dc9ed5 | 1918 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1919 | mPUSHs(mask); |
e476b1b5 | 1920 | } |
b3ca2e83 | 1921 | |
c28fe1ec | 1922 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
20439bc7 | 1923 | sv_2mortal(newRV_noinc(MUTABLE_SV(cop_hints_2hv(cx->blk_oldcop, 0)))) |
b3ca2e83 | 1924 | : &PL_sv_undef); |
a0d0e21e LW |
1925 | RETURN; |
1926 | } | |
1927 | ||
a0d0e21e LW |
1928 | PP(pp_reset) |
1929 | { | |
97aff369 | 1930 | dVAR; |
39644a26 | 1931 | dSP; |
f650fa72 FC |
1932 | const char * const tmps = |
1933 | (MAXARG < 1 || (!TOPs && !POPs)) ? (const char *)"" : POPpconstx; | |
11faa288 | 1934 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1935 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1936 | RETURN; |
1937 | } | |
1938 | ||
dd2155a4 DM |
1939 | /* like pp_nextstate, but used instead when the debugger is active */ |
1940 | ||
a0d0e21e LW |
1941 | PP(pp_dbstate) |
1942 | { | |
27da23d5 | 1943 | dVAR; |
533c011a | 1944 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1945 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1946 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1947 | FREETMPS; |
1948 | ||
f410a211 NC |
1949 | PERL_ASYNC_CHECK(); |
1950 | ||
5df8de69 DM |
1951 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1952 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1953 | { |
39644a26 | 1954 | dSP; |
eb578fdb | 1955 | PERL_CONTEXT *cx; |
f54cb97a | 1956 | const I32 gimme = G_ARRAY; |
eb160463 | 1957 | U8 hasargs; |
0bd48802 | 1958 | GV * const gv = PL_DBgv; |
eb578fdb | 1959 | CV * const cv = GvCV(gv); |
a0d0e21e | 1960 | |
a0d0e21e | 1961 | if (!cv) |
cea2e8a9 | 1962 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1963 | |
aea4f609 DM |
1964 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1965 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1966 | return NORMAL; |
748a9306 | 1967 | |
a57c6685 | 1968 | ENTER; |
4633a7c4 LW |
1969 | SAVETMPS; |
1970 | ||
3280af22 | 1971 | SAVEI32(PL_debug); |
55497cff | 1972 | SAVESTACK_POS(); |
3280af22 | 1973 | PL_debug = 0; |
748a9306 | 1974 | hasargs = 0; |
924508f0 | 1975 | SPAGAIN; |
748a9306 | 1976 | |
aed2304a | 1977 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1978 | PUSHMARK(SP); |
1979 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
c127bd3a | 1980 | FREETMPS; |
a57c6685 | 1981 | LEAVE; |
c127bd3a SF |
1982 | return NORMAL; |
1983 | } | |
1984 | else { | |
1985 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1986 | PUSHSUB_DB(cx); | |
1987 | cx->blk_sub.retop = PL_op->op_next; | |
1988 | CvDEPTH(cv)++; | |
1989 | SAVECOMPPAD(); | |
1990 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1991 | RETURNOP(CvSTART(cv)); | |
1992 | } | |
a0d0e21e LW |
1993 | } |
1994 | else | |
1995 | return NORMAL; | |
1996 | } | |
1997 | ||
b9d76716 VP |
1998 | STATIC SV ** |
1999 | S_adjust_stack_on_leave(pTHX_ SV **newsp, SV **sp, SV **mark, I32 gimme, U32 flags) | |
2000 | { | |
9a214eec | 2001 | bool padtmp = 0; |
b9d76716 VP |
2002 | PERL_ARGS_ASSERT_ADJUST_STACK_ON_LEAVE; |
2003 | ||
9a214eec DM |
2004 | if (flags & SVs_PADTMP) { |
2005 | flags &= ~SVs_PADTMP; | |
2006 | padtmp = 1; | |
2007 | } | |
b9d76716 VP |
2008 | if (gimme == G_SCALAR) { |
2009 | if (MARK < SP) | |
9a214eec DM |
2010 | *++newsp = ((SvFLAGS(*SP) & flags) || (padtmp && SvPADTMP(*SP))) |
2011 | ? *SP : sv_mortalcopy(*SP); | |
b9d76716 VP |
2012 | else { |
2013 | /* MEXTEND() only updates MARK, so reuse it instead of newsp. */ | |
2014 | MARK = newsp; | |
2015 | MEXTEND(MARK, 1); | |
2016 | *++MARK = &PL_sv_undef; | |
2017 | return MARK; | |
2018 | } | |
2019 | } | |
2020 | else if (gimme == G_ARRAY) { | |
2021 | /* in case LEAVE wipes old return values */ | |
2022 | while (++MARK <= SP) { | |
9a214eec | 2023 | if ((SvFLAGS(*MARK) & flags) || (padtmp && SvPADTMP(*MARK))) |
b9d76716 VP |
2024 | *++newsp = *MARK; |
2025 | else { | |
2026 | *++newsp = sv_mortalcopy(*MARK); | |
2027 | TAINT_NOT; /* Each item is independent */ | |
2028 | } | |
2029 | } | |
2030 | /* When this function was called with MARK == newsp, we reach this | |
2031 | * point with SP == newsp. */ | |
2032 | } | |
2033 | ||
2034 | return newsp; | |
2035 | } | |
2036 | ||
2b9a6457 VP |
2037 | PP(pp_enter) |
2038 | { | |
2039 | dVAR; dSP; | |
eb578fdb | 2040 | PERL_CONTEXT *cx; |
7c2d9d03 | 2041 | I32 gimme = GIMME_V; |
2b9a6457 VP |
2042 | |
2043 | ENTER_with_name("block"); | |
2044 | ||
2045 | SAVETMPS; | |
2046 | PUSHBLOCK(cx, CXt_BLOCK, SP); | |
2047 | ||
2048 | RETURN; | |
2049 | } | |
2050 | ||
2051 | PP(pp_leave) | |
2052 | { | |
2053 | dVAR; dSP; | |
eb578fdb | 2054 | PERL_CONTEXT *cx; |
2b9a6457 VP |
2055 | SV **newsp; |
2056 | PMOP *newpm; | |
2057 | I32 gimme; | |
2058 | ||
2059 | if (PL_op->op_flags & OPf_SPECIAL) { | |
2060 | cx = &cxstack[cxstack_ix]; | |
2061 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ | |
2062 | } | |
2063 | ||
2064 | POPBLOCK(cx,newpm); | |
2065 | ||
2066 | gimme = OP_GIMME(PL_op, (cxstack_ix >= 0) ? gimme : G_SCALAR); | |
2067 | ||
2068 | TAINT_NOT; | |
f02ea43c | 2069 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
2b9a6457 VP |
2070 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
2071 | ||
2072 | LEAVE_with_name("block"); | |
2073 | ||
2074 | RETURN; | |
2075 | } | |
2076 | ||
a0d0e21e LW |
2077 | PP(pp_enteriter) |
2078 | { | |
27da23d5 | 2079 | dVAR; dSP; dMARK; |
eb578fdb | 2080 | PERL_CONTEXT *cx; |
f54cb97a | 2081 | const I32 gimme = GIMME_V; |
df530c37 | 2082 | void *itervar; /* location of the iteration variable */ |
840fe433 | 2083 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 2084 | |
d343c3ef | 2085 | ENTER_with_name("loop1"); |
4633a7c4 LW |
2086 | SAVETMPS; |
2087 | ||
aafca525 DM |
2088 | if (PL_op->op_targ) { /* "my" variable */ |
2089 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
2090 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
2091 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
2092 | SVs_PADSTALE, SVs_PADSTALE); | |
2093 | } | |
09edbca0 | 2094 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 2095 | #ifdef USE_ITHREADS |
df530c37 | 2096 | itervar = PL_comppad; |
89e00a7c | 2097 | #else |
aafca525 | 2098 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 2099 | #endif |
54b9620d | 2100 | } |
aafca525 | 2101 | else { /* symbol table variable */ |
159b6efe | 2102 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
2103 | SV** svp = &GvSV(gv); |
2104 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 2105 | *svp = newSV(0); |
df530c37 | 2106 | itervar = (void *)gv; |
54b9620d | 2107 | } |
4633a7c4 | 2108 | |
0d863452 RH |
2109 | if (PL_op->op_private & OPpITER_DEF) |
2110 | cxtype |= CXp_FOR_DEF; | |
2111 | ||
d343c3ef | 2112 | ENTER_with_name("loop2"); |
a0d0e21e | 2113 | |
7766f137 | 2114 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 2115 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 2116 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
2117 | SV *maybe_ary = POPs; |
2118 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 2119 | dPOPss; |
d01136d6 | 2120 | SV * const right = maybe_ary; |
984a4bea RD |
2121 | SvGETMAGIC(sv); |
2122 | SvGETMAGIC(right); | |
4fe3f0fa | 2123 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2124 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2125 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2126 | /* Make sure that no-one re-orders cop.h and breaks our | |
2127 | assumptions */ | |
2128 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 | 2129 | #ifdef NV_PRESERVES_UV |
f52e41ad FC |
2130 | if ((SvOK(sv) && ((SvNV_nomg(sv) < (NV)IV_MIN) || |
2131 | (SvNV_nomg(sv) > (NV)IV_MAX))) | |
a2309040 | 2132 | || |
f52e41ad FC |
2133 | (SvOK(right) && ((SvNV_nomg(right) > (NV)IV_MAX) || |
2134 | (SvNV_nomg(right) < (NV)IV_MIN)))) | |
a2309040 | 2135 | #else |
f52e41ad | 2136 | if ((SvOK(sv) && ((SvNV_nomg(sv) <= (NV)IV_MIN) |
a2309040 | 2137 | || |
f52e41ad FC |
2138 | ((SvNV_nomg(sv) > 0) && |
2139 | ((SvUV_nomg(sv) > (UV)IV_MAX) || | |
2140 | (SvNV_nomg(sv) > (NV)UV_MAX))))) | |
a2309040 | 2141 | || |
f52e41ad | 2142 | (SvOK(right) && ((SvNV_nomg(right) <= (NV)IV_MIN) |
a2309040 | 2143 | || |
f52e41ad FC |
2144 | ((SvNV_nomg(right) > 0) && |
2145 | ((SvUV_nomg(right) > (UV)IV_MAX) || | |
2146 | (SvNV_nomg(right) > (NV)UV_MAX)) | |
2147 | )))) | |
a2309040 | 2148 | #endif |
076d9a11 | 2149 | DIE(aTHX_ "Range iterator outside integer range"); |
f52e41ad FC |
2150 | cx->blk_loop.state_u.lazyiv.cur = SvIV_nomg(sv); |
2151 | cx->blk_loop.state_u.lazyiv.end = SvIV_nomg(right); | |
d4665a05 DM |
2152 | #ifdef DEBUGGING |
2153 | /* for correct -Dstv display */ | |
2154 | cx->blk_oldsp = sp - PL_stack_base; | |
2155 | #endif | |
89ea2908 | 2156 | } |
3f63a782 | 2157 | else { |
d01136d6 BS |
2158 | cx->cx_type &= ~CXTYPEMASK; |
2159 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2160 | /* Make sure that no-one re-orders cop.h and breaks our | |
2161 | assumptions */ | |
2162 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2163 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2164 | cx->blk_loop.state_u.lazysv.end = right; | |
2165 | SvREFCNT_inc(right); | |
2166 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2167 | /* This will do the upgrade to SVt_PV, and warn if the value |
2168 | is uninitialised. */ | |
10516c54 | 2169 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2170 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2171 | to replace !SvOK() with a pointer to "". */ | |
2172 | if (!SvOK(right)) { | |
2173 | SvREFCNT_dec(right); | |
d01136d6 | 2174 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2175 | } |
3f63a782 | 2176 | } |
89ea2908 | 2177 | } |
d01136d6 | 2178 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2179 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2180 | SvREFCNT_inc(maybe_ary); |
2181 | cx->blk_loop.state_u.ary.ix = | |
2182 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2183 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2184 | -1; | |
ef3e5ea9 | 2185 | } |
89ea2908 | 2186 | } |
d01136d6 BS |
2187 | else { /* iterating over items on the stack */ |
2188 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2189 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2190 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2191 | } |
2192 | else { | |
d01136d6 | 2193 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2194 | } |
4633a7c4 | 2195 | } |
a0d0e21e LW |
2196 | |
2197 | RETURN; | |
2198 | } | |
2199 | ||
2200 | PP(pp_enterloop) | |
2201 | { | |
27da23d5 | 2202 | dVAR; dSP; |
eb578fdb | 2203 | PERL_CONTEXT *cx; |
f54cb97a | 2204 | const I32 gimme = GIMME_V; |
a0d0e21e | 2205 | |
d343c3ef | 2206 | ENTER_with_name("loop1"); |
a0d0e21e | 2207 | SAVETMPS; |
d343c3ef | 2208 | ENTER_with_name("loop2"); |
a0d0e21e | 2209 | |
3b719c58 NC |
2210 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2211 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2212 | |
2213 | RETURN; | |
2214 | } | |
2215 | ||
2216 | PP(pp_leaveloop) | |
2217 | { | |
27da23d5 | 2218 | dVAR; dSP; |
eb578fdb | 2219 | PERL_CONTEXT *cx; |
a0d0e21e LW |
2220 | I32 gimme; |
2221 | SV **newsp; | |
2222 | PMOP *newpm; | |
2223 | SV **mark; | |
2224 | ||
2225 | POPBLOCK(cx,newpm); | |
3b719c58 | 2226 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2227 | mark = newsp; |
a8bba7fa | 2228 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2229 | |
a1f49e72 | 2230 | TAINT_NOT; |
b9d76716 | 2231 | SP = adjust_stack_on_leave(newsp, SP, MARK, gimme, 0); |
f86702cc | 2232 | PUTBACK; |
2233 | ||
a8bba7fa | 2234 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2235 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2236 | |
d343c3ef GG |
2237 | LEAVE_with_name("loop2"); |
2238 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2239 | |
f86702cc | 2240 | return NORMAL; |
a0d0e21e LW |
2241 | } |
2242 | ||
3bdf583b FC |
2243 | STATIC void |
2244 | S_return_lvalues(pTHX_ SV **mark, SV **sp, SV **newsp, I32 gimme, | |
d25b0d7b | 2245 | PERL_CONTEXT *cx, PMOP *newpm) |
3bdf583b | 2246 | { |
80422e24 | 2247 | const bool ref = !!(CxLVAL(cx) & OPpENTERSUB_INARGS); |
3bdf583b | 2248 | if (gimme == G_SCALAR) { |
d25b0d7b FC |
2249 | if (CxLVAL(cx) && !ref) { /* Leave it as it is if we can. */ |
2250 | SV *sv; | |
001de122 | 2251 | const char *what = NULL; |
d25b0d7b FC |
2252 | if (MARK < SP) { |
2253 | assert(MARK+1 == SP); | |
2254 | if ((SvPADTMP(TOPs) || | |
2255 | (SvFLAGS(TOPs) & (SVf_READONLY | SVf_FAKE)) | |
2256 | == SVf_READONLY | |
2257 | ) && | |
2258 | !SvSMAGICAL(TOPs)) { | |
001de122 | 2259 | what = |
d25b0d7b | 2260 | SvREADONLY(TOPs) ? (TOPs == &PL_sv_undef) ? "undef" |
001de122 | 2261 | : "a readonly value" : "a temporary"; |
d25b0d7b | 2262 | } |
001de122 | 2263 | else goto copy_sv; |
d25b0d7b FC |
2264 | } |
2265 | else { | |
2266 | /* sub:lvalue{} will take us here. */ | |
001de122 | 2267 | what = "undef"; |
d25b0d7b | 2268 | } |
001de122 FC |
2269 | LEAVE; |
2270 | cxstack_ix--; | |
2271 | POPSUB(cx,sv); | |
2272 | PL_curpm = newpm; | |
2273 | LEAVESUB(sv); | |
2274 | Perl_croak(aTHX_ | |
2275 | "Can't return %s from lvalue subroutine", what | |
2276 | ); | |
d25b0d7b | 2277 | } |
93905212 | 2278 | if (MARK < SP) { |
a5ad7a5a | 2279 | copy_sv: |
3bdf583b | 2280 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
5811c07e | 2281 | if (!SvPADTMP(*SP)) { |
3bdf583b FC |
2282 | *++newsp = SvREFCNT_inc(*SP); |
2283 | FREETMPS; | |
2284 | sv_2mortal(*newsp); | |
5811c07e FC |
2285 | } |
2286 | else { | |
2287 | /* FREETMPS could clobber it */ | |
2288 | SV *sv = SvREFCNT_inc(*SP); | |
2289 | FREETMPS; | |
2290 | *++newsp = sv_mortalcopy(sv); | |
2291 | SvREFCNT_dec(sv); | |
2292 | } | |
3bdf583b FC |
2293 | } |
2294 | else | |
e08be60b | 2295 | *++newsp = |
5811c07e FC |
2296 | SvPADTMP(*SP) |
2297 | ? sv_mortalcopy(*SP) | |
2298 | : !SvTEMP(*SP) | |
e08be60b FC |
2299 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*SP)) |
2300 | : *SP; | |
3bdf583b | 2301 | } |
0d235c77 FC |
2302 | else { |
2303 | EXTEND(newsp,1); | |
3bdf583b | 2304 | *++newsp = &PL_sv_undef; |
0d235c77 | 2305 | } |
0e9700df | 2306 | if (CxLVAL(cx) & OPpDEREF) { |
767eda44 FC |
2307 | SvGETMAGIC(TOPs); |
2308 | if (!SvOK(TOPs)) { | |
0e9700df | 2309 | TOPs = vivify_ref(TOPs, CxLVAL(cx) & OPpDEREF); |
767eda44 FC |
2310 | } |
2311 | } | |
3bdf583b FC |
2312 | } |
2313 | else if (gimme == G_ARRAY) { | |
0e9700df | 2314 | assert (!(CxLVAL(cx) & OPpDEREF)); |
80422e24 | 2315 | if (ref || !CxLVAL(cx)) |
e08be60b FC |
2316 | while (++MARK <= SP) |
2317 | *++newsp = | |
5811c07e | 2318 | SvFLAGS(*MARK) & SVs_PADTMP |
80422e24 | 2319 | ? sv_mortalcopy(*MARK) |
5811c07e FC |
2320 | : SvTEMP(*MARK) |
2321 | ? *MARK | |
80422e24 | 2322 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); |
e08be60b | 2323 | else while (++MARK <= SP) { |
d25b0d7b FC |
2324 | if (*MARK != &PL_sv_undef |
2325 | && (SvPADTMP(*MARK) | |
2326 | || (SvFLAGS(*MARK) & (SVf_READONLY|SVf_FAKE)) | |
2327 | == SVf_READONLY | |
2328 | ) | |
2329 | ) { | |
2330 | SV *sv; | |
2331 | /* Might be flattened array after $#array = */ | |
2332 | PUTBACK; | |
2333 | LEAVE; | |
2334 | cxstack_ix--; | |
2335 | POPSUB(cx,sv); | |
2336 | PL_curpm = newpm; | |
2337 | LEAVESUB(sv); | |
ae917476 | 2338 | /* diag_listed_as: Can't return %s from lvalue subroutine */ |
d25b0d7b FC |
2339 | Perl_croak(aTHX_ |
2340 | "Can't return a %s from lvalue subroutine", | |
2341 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); | |
2342 | } | |
2343 | else | |
4bee03f8 FC |
2344 | *++newsp = |
2345 | SvTEMP(*MARK) | |
2346 | ? *MARK | |
2347 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); | |
3bdf583b FC |
2348 | } |
2349 | } | |
2350 | PL_stack_sp = newsp; | |
2351 | } | |
2352 | ||
a0d0e21e LW |
2353 | PP(pp_return) |
2354 | { | |
27da23d5 | 2355 | dVAR; dSP; dMARK; |
eb578fdb | 2356 | PERL_CONTEXT *cx; |
f86702cc | 2357 | bool popsub2 = FALSE; |
b45de488 | 2358 | bool clear_errsv = FALSE; |
fa1e92c4 | 2359 | bool lval = FALSE; |
a0d0e21e LW |
2360 | I32 gimme; |
2361 | SV **newsp; | |
2362 | PMOP *newpm; | |
2363 | I32 optype = 0; | |
b6494f15 | 2364 | SV *namesv; |
b0d9ce38 | 2365 | SV *sv; |
b263a1ad | 2366 | OP *retop = NULL; |
a0d0e21e | 2367 | |
0bd48802 AL |
2368 | const I32 cxix = dopoptosub(cxstack_ix); |
2369 | ||
9850bf21 RH |
2370 | if (cxix < 0) { |
2371 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2372 | * sort block, which is a CXt_NULL | |
2373 | * not a CXt_SUB */ | |
2374 | dounwind(0); | |
d7507f74 RH |
2375 | PL_stack_base[1] = *PL_stack_sp; |
2376 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2377 | return 0; |
2378 | } | |
9850bf21 RH |
2379 | else |
2380 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2381 | } |
a0d0e21e LW |
2382 | if (cxix < cxstack_ix) |
2383 | dounwind(cxix); | |
2384 | ||
d7507f74 RH |
2385 | if (CxMULTICALL(&cxstack[cxix])) { |
2386 | gimme = cxstack[cxix].blk_gimme; | |
2387 | if (gimme == G_VOID) | |
2388 | PL_stack_sp = PL_stack_base; | |
2389 | else if (gimme == G_SCALAR) { | |
2390 | PL_stack_base[1] = *PL_stack_sp; | |
2391 | PL_stack_sp = PL_stack_base + 1; | |
2392 | } | |
9850bf21 | 2393 | return 0; |
d7507f74 | 2394 | } |
9850bf21 | 2395 | |
a0d0e21e | 2396 | POPBLOCK(cx,newpm); |
6b35e009 | 2397 | switch (CxTYPE(cx)) { |
a0d0e21e | 2398 | case CXt_SUB: |
f86702cc | 2399 | popsub2 = TRUE; |
fa1e92c4 | 2400 | lval = !!CvLVALUE(cx->blk_sub.cv); |
f39bc417 | 2401 | retop = cx->blk_sub.retop; |
5dd42e15 | 2402 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2403 | break; |
2404 | case CXt_EVAL: | |
b45de488 GS |
2405 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2406 | clear_errsv = TRUE; | |
a0d0e21e | 2407 | POPEVAL(cx); |
b6494f15 | 2408 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2409 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2410 | if (CxTRYBLOCK(cx)) |
2411 | break; | |
748a9306 LW |
2412 | if (optype == OP_REQUIRE && |
2413 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2414 | { | |
54310121 | 2415 | /* Unassume the success we assumed earlier. */ |
b6494f15 | 2416 | (void)hv_delete(GvHVn(PL_incgv), |
ecad31f0 | 2417 | SvPVX_const(namesv), |
c60dbbc3 | 2418 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 VP |
2419 | G_DISCARD); |
2420 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2421 | } |
a0d0e21e | 2422 | break; |
7766f137 GS |
2423 | case CXt_FORMAT: |
2424 | POPFORMAT(cx); | |
f39bc417 | 2425 | retop = cx->blk_sub.retop; |
7766f137 | 2426 | break; |
a0d0e21e | 2427 | default: |
5637ef5b | 2428 | DIE(aTHX_ "panic: return, type=%u", (unsigned) CxTYPE(cx)); |
a0d0e21e LW |
2429 | } |
2430 | ||
a1f49e72 | 2431 | TAINT_NOT; |
d25b0d7b | 2432 | if (lval) S_return_lvalues(aTHX_ MARK, SP, newsp, gimme, cx, newpm); |
3bdf583b FC |
2433 | else { |
2434 | if (gimme == G_SCALAR) { | |
a29cdaf0 IZ |
2435 | if (MARK < SP) { |
2436 | if (popsub2) { | |
a8bba7fa | 2437 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
6f48390a FC |
2438 | if (SvTEMP(TOPs) && SvREFCNT(TOPs) == 1 |
2439 | && !SvMAGICAL(TOPs)) { | |
a29cdaf0 IZ |
2440 | *++newsp = SvREFCNT_inc(*SP); |
2441 | FREETMPS; | |
2442 | sv_2mortal(*newsp); | |
959e3673 GS |
2443 | } |
2444 | else { | |
2445 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2446 | FREETMPS; |
959e3673 GS |
2447 | *++newsp = sv_mortalcopy(sv); |
2448 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2449 | } |
959e3673 | 2450 | } |
6f48390a FC |
2451 | else if (SvTEMP(*SP) && SvREFCNT(*SP) == 1 |
2452 | && !SvMAGICAL(*SP)) { | |
767eda44 | 2453 | *++newsp = *SP; |
767eda44 | 2454 | } |
959e3673 | 2455 | else |
767eda44 | 2456 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2457 | } |
2458 | else | |
a29cdaf0 | 2459 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2460 | } |
2461 | else | |
3280af22 | 2462 | *++newsp = &PL_sv_undef; |
3bdf583b FC |
2463 | } |
2464 | else if (gimme == G_ARRAY) { | |
a1f49e72 | 2465 | while (++MARK <= SP) { |
3ed94dc0 | 2466 | *++newsp = popsub2 && SvTEMP(*MARK) && SvREFCNT(*MARK) == 1 |
6f48390a | 2467 | && !SvGMAGICAL(*MARK) |
f86702cc | 2468 | ? *MARK : sv_mortalcopy(*MARK); |
a1f49e72 CS |
2469 | TAINT_NOT; /* Each item is independent */ |
2470 | } | |
3bdf583b FC |
2471 | } |
2472 | PL_stack_sp = newsp; | |
a0d0e21e | 2473 | } |
a0d0e21e | 2474 | |
5dd42e15 | 2475 | LEAVE; |
f86702cc | 2476 | /* Stack values are safe: */ |
2477 | if (popsub2) { | |
5dd42e15 | 2478 | cxstack_ix--; |
b0d9ce38 | 2479 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2480 | } |
b0d9ce38 | 2481 | else |
c445ea15 | 2482 | sv = NULL; |
3280af22 | 2483 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2484 | |
b0d9ce38 | 2485 | LEAVESUB(sv); |
8433848b | 2486 | if (clear_errsv) { |
ab69dbc2 | 2487 | CLEAR_ERRSV(); |
8433848b | 2488 | } |
f39bc417 | 2489 | return retop; |
a0d0e21e LW |
2490 | } |
2491 | ||
4f443c3d FC |
2492 | /* This duplicates parts of pp_leavesub, so that it can share code with |
2493 | * pp_return */ | |
2494 | PP(pp_leavesublv) | |
2495 | { | |
2496 | dVAR; dSP; | |
4f443c3d FC |
2497 | SV **newsp; |
2498 | PMOP *newpm; | |
2499 | I32 gimme; | |
eb578fdb | 2500 | PERL_CONTEXT *cx; |
4f443c3d FC |
2501 | SV *sv; |
2502 | ||
2503 | if (CxMULTICALL(&cxstack[cxstack_ix])) | |
2504 | return 0; | |
2505 | ||
2506 | POPBLOCK(cx,newpm); | |
2507 | cxstack_ix++; /* temporarily protect top context */ | |
4f443c3d FC |
2508 | |
2509 | TAINT_NOT; | |
2510 | ||
0d235c77 | 2511 | S_return_lvalues(aTHX_ newsp, SP, newsp, gimme, cx, newpm); |
4f443c3d FC |
2512 | |
2513 | LEAVE; | |
2514 | cxstack_ix--; | |
2515 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ | |
2516 | PL_curpm = newpm; /* ... and pop $1 et al */ | |
2517 | ||
2518 | LEAVESUB(sv); | |
2519 | return cx->blk_sub.retop; | |
2520 | } | |
2521 | ||
1f039d60 FC |
2522 | static I32 |
2523 | S_unwind_loop(pTHX_ const char * const opname) | |
a0d0e21e | 2524 | { |
1f039d60 | 2525 | dVAR; |
a0d0e21e | 2526 | I32 cxix; |
1f039d60 FC |
2527 | if (PL_op->op_flags & OPf_SPECIAL) { |
2528 | cxix = dopoptoloop(cxstack_ix); | |
2529 | if (cxix < 0) | |
2530 | /* diag_listed_as: Can't "last" outside a loop block */ | |
2531 | Perl_croak(aTHX_ "Can't \"%s\" outside a loop block", opname); | |
2532 | } | |
2533 | else { | |
2534 | dSP; | |
2535 | STRLEN label_len; | |
2536 | const char * const label = | |
2537 | PL_op->op_flags & OPf_STACKED | |
2538 | ? SvPV(TOPs,label_len) | |
2539 | : (label_len = strlen(cPVOP->op_pv), cPVOP->op_pv); | |
2540 | const U32 label_flags = | |
2541 | PL_op->op_flags & OPf_STACKED | |
2542 | ? SvUTF8(POPs) | |
2543 | : (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0; | |
2544 | PUTBACK; | |
2545 | cxix = dopoptolabel(label, label_len, label_flags); | |
2546 | if (cxix < 0) | |
2547 | /* diag_listed_as: Label not found for "last %s" */ | |
2548 | Perl_croak(aTHX_ "Label not found for \"%s %"SVf"\"", | |
2549 | opname, | |
2550 | SVfARG(PL_op->op_flags & OPf_STACKED | |
2551 | && !SvGMAGICAL(TOPp1s) | |
2552 | ? TOPp1s | |
2553 | : newSVpvn_flags(label, | |
2554 | label_len, | |
2555 | label_flags | SVs_TEMP))); | |
2556 | } | |
2557 | if (cxix < cxstack_ix) | |
2558 | dounwind(cxix); | |
2559 | return cxix; | |
2560 | } | |
2561 | ||
2562 | PP(pp_last) | |
2563 | { | |
2564 | dVAR; | |
eb578fdb | 2565 | PERL_CONTEXT *cx; |
f86702cc | 2566 | I32 pop2 = 0; |
a0d0e21e | 2567 | I32 gimme; |
8772537c | 2568 | I32 optype; |
b263a1ad | 2569 | OP *nextop = NULL; |
a0d0e21e LW |
2570 | SV **newsp; |
2571 | PMOP *newpm; | |
a8bba7fa | 2572 | SV **mark; |
c445ea15 | 2573 | SV *sv = NULL; |
9d4ba2ae | 2574 | |
1f039d60 | 2575 | S_unwind_loop(aTHX_ "last"); |
a0d0e21e LW |
2576 | |
2577 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2578 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2579 | mark = newsp; |
6b35e009 | 2580 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2581 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2582 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2583 | case CXt_LOOP_FOR: |
2584 | case CXt_LOOP_PLAIN: | |
2585 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2586 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2587 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2588 | break; |
f86702cc | 2589 | case CXt_SUB: |
f86702cc | 2590 | pop2 = CXt_SUB; |
f39bc417 | 2591 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2592 | break; |
f86702cc | 2593 | case CXt_EVAL: |
2594 | POPEVAL(cx); | |
f39bc417 | 2595 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2596 | break; |
7766f137 GS |
2597 | case CXt_FORMAT: |
2598 | POPFORMAT(cx); | |
f39bc417 | 2599 | nextop = cx->blk_sub.retop; |
7766f137 | 2600 | break; |
a0d0e21e | 2601 | default: |
5637ef5b | 2602 | DIE(aTHX_ "panic: last, type=%u", (unsigned) CxTYPE(cx)); |
a0d0e21e LW |
2603 | } |
2604 | ||
a1f49e72 | 2605 | TAINT_NOT; |
1f039d60 | 2606 | PL_stack_sp = adjust_stack_on_leave(newsp, PL_stack_sp, MARK, gimme, |
b9d76716 | 2607 | pop2 == CXt_SUB ? SVs_TEMP : 0); |
f86702cc | 2608 | |
5dd42e15 DM |
2609 | LEAVE; |
2610 | cxstack_ix--; | |
f86702cc | 2611 | /* Stack values are safe: */ |
2612 | switch (pop2) { | |
c6fdafd0 | 2613 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2614 | case CXt_LOOP_PLAIN: |
d01136d6 | 2615 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2616 | case CXt_LOOP_FOR: |
a8bba7fa | 2617 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2618 | LEAVE; |
f86702cc | 2619 | break; |
2620 | case CXt_SUB: | |
b0d9ce38 | 2621 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2622 | break; |
a0d0e21e | 2623 | } |
3280af22 | 2624 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2625 | |
b0d9ce38 | 2626 | LEAVESUB(sv); |
9d4ba2ae AL |
2627 | PERL_UNUSED_VAR(optype); |
2628 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2629 | return nextop; |
a0d0e21e LW |
2630 | } |
2631 | ||
2632 | PP(pp_next) | |
2633 | { | |
27da23d5 | 2634 | dVAR; |
eb578fdb | 2635 | PERL_CONTEXT *cx; |
1f039d60 | 2636 | const I32 inner = PL_scopestack_ix; |
a0d0e21e | 2637 | |
1f039d60 | 2638 | S_unwind_loop(aTHX_ "next"); |
a0d0e21e | 2639 | |
85538317 GS |
2640 | /* clear off anything above the scope we're re-entering, but |
2641 | * save the rest until after a possible continue block */ | |
1ba6ee2b | 2642 | TOPBLOCK(cx); |
85538317 GS |
2643 | if (PL_scopestack_ix < inner) |
2644 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2645 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2646 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2647 | } |
2648 | ||
2649 | PP(pp_redo) | |
2650 | { | |
27da23d5 | 2651 | dVAR; |
1f039d60 | 2652 | const I32 cxix = S_unwind_loop(aTHX_ "redo"); |
eb578fdb | 2653 | PERL_CONTEXT *cx; |
a0d0e21e | 2654 | I32 oldsave; |
1f039d60 | 2655 | OP* redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a0d0e21e | 2656 | |
a034e688 DM |
2657 | if (redo_op->op_type == OP_ENTER) { |
2658 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2659 | cxstack_ix++; | |
2660 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2661 | redo_op = redo_op->op_next; | |
2662 | } | |
2663 | ||
a0d0e21e | 2664 | TOPBLOCK(cx); |
3280af22 | 2665 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2666 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2667 | FREETMPS; |
3a1b2b9e | 2668 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2669 | return redo_op; |
a0d0e21e LW |
2670 | } |
2671 | ||
0824fdcb | 2672 | STATIC OP * |
5db1eb8d | 2673 | S_dofindlabel(pTHX_ OP *o, const char *label, STRLEN len, U32 flags, OP **opstack, OP **oplimit) |
a0d0e21e | 2674 | { |
97aff369 | 2675 | dVAR; |
a0d0e21e | 2676 | OP **ops = opstack; |
bfed75c6 | 2677 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2678 | |
7918f24d NC |
2679 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2680 | ||
fc36a67e | 2681 | if (ops >= oplimit) |
cea2e8a9 | 2682 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2683 | if (o->op_type == OP_LEAVE || |
2684 | o->op_type == OP_SCOPE || | |
2685 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2686 | o->op_type == OP_LEAVESUB || |
11343788 | 2687 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2688 | { |
5dc0d613 | 2689 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2690 | if (ops >= oplimit) |
cea2e8a9 | 2691 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2692 | } |
c4aa4e48 | 2693 | *ops = 0; |
11343788 | 2694 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2695 | OP *kid; |
a0d0e21e | 2696 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2697 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac | 2698 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
5db1eb8d BF |
2699 | STRLEN kid_label_len; |
2700 | U32 kid_label_flags; | |
2701 | const char *kid_label = CopLABEL_len_flags(kCOP, | |
2702 | &kid_label_len, &kid_label_flags); | |
2703 | if (kid_label && ( | |
2704 | ( (kid_label_flags & SVf_UTF8) != (flags & SVf_UTF8) ) ? | |
2705 | (flags & SVf_UTF8) | |
2706 | ? (bytes_cmp_utf8( | |
2707 | (const U8*)kid_label, kid_label_len, | |
2708 | (const U8*)label, len) == 0) | |
2709 | : (bytes_cmp_utf8( | |
2710 | (const U8*)label, len, | |
2711 | (const U8*)kid_label, kid_label_len) == 0) | |
eade7155 BF |
2712 | : ( len == kid_label_len && ((kid_label == label) |
2713 | || memEQ(kid_label, label, len))))) | |
7e8f1eac AD |
2714 | return kid; |
2715 | } | |
a0d0e21e | 2716 | } |
11343788 | 2717 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2718 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2719 | continue; |
ed8d0fe2 SM |
2720 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2721 | if (ops == opstack) | |
2722 | *ops++ = kid; | |
2723 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2724 | ops[-1]->op_type == OP_DBSTATE) | |
2725 | ops[-1] = kid; | |
2726 | else | |
2727 | *ops++ = kid; | |
2728 | } | |
5db1eb8d | 2729 | if ((o = dofindlabel(kid, label, len, flags, ops, oplimit))) |
11343788 | 2730 | return o; |
a0d0e21e LW |
2731 | } |
2732 | } | |
c4aa4e48 | 2733 | *ops = 0; |
a0d0e21e LW |
2734 | return 0; |
2735 | } | |
2736 | ||
a0d0e21e LW |
2737 | PP(pp_goto) |
2738 | { | |
27da23d5 | 2739 | dVAR; dSP; |
cbbf8932 | 2740 | OP *retop = NULL; |
a0d0e21e | 2741 | I32 ix; |
eb578fdb | 2742 | PERL_CONTEXT *cx; |
fc36a67e | 2743 | #define GOTO_DEPTH 64 |
2744 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2745 | const char *label = NULL; |
5db1eb8d BF |
2746 | STRLEN label_len = 0; |
2747 | U32 label_flags = 0; | |
bfed75c6 AL |
2748 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2749 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2750 | |
533c011a | 2751 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2752 | SV * const sv = POPs; |
a0d0e21e LW |
2753 | |
2754 | /* This egregious kludge implements goto &subroutine */ | |
2755 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2756 | I32 cxix; | |
eb578fdb | 2757 | PERL_CONTEXT *cx; |
ea726b52 | 2758 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2759 | SV** mark; |
2760 | I32 items = 0; | |
2761 | I32 oldsave; | |
b1464ded | 2762 | bool reified = 0; |
a0d0e21e | 2763 | |
e8f7dd13 | 2764 | retry: |
4aa0a1f7 | 2765 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2766 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2767 | if (gv) { |
7fc63493 | 2768 | GV *autogv; |
e8f7dd13 GS |
2769 | SV *tmpstr; |
2770 | /* autoloaded stub? */ | |
2771 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2772 | goto retry; | |
c271df94 BF |
2773 | autogv = gv_autoload_pvn(GvSTASH(gv), GvNAME(gv), |
2774 | GvNAMELEN(gv), | |
2775 | GvNAMEUTF8(gv) ? SVf_UTF8 : 0); | |
e8f7dd13 GS |
2776 | if (autogv && (cv = GvCV(autogv))) |
2777 | goto retry; | |
2778 | tmpstr = sv_newmortal(); | |
c445ea15 | 2779 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2780 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2781 | } |
cea2e8a9 | 2782 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2783 | } |
2784 | ||
a0d0e21e | 2785 | /* First do some returnish stuff. */ |
b37c2d43 | 2786 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2787 | FREETMPS; |
a0d0e21e LW |
2788 | cxix = dopoptosub(cxstack_ix); |
2789 | if (cxix < 0) | |
cea2e8a9 | 2790 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2791 | if (cxix < cxstack_ix) |
2792 | dounwind(cxix); | |
2793 | TOPBLOCK(cx); | |
2d43a17f | 2794 | SPAGAIN; |
564abe23 | 2795 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2796 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 | 2797 | if (CxREALEVAL(cx)) |
00455a92 | 2798 | /* diag_listed_as: Can't goto subroutine from an eval-%s */ |
c74ace89 DM |
2799 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); |
2800 | else | |
00455a92 | 2801 | /* diag_listed_as: Can't goto subroutine from an eval-%s */ |
c74ace89 | 2802 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); |
2d43a17f | 2803 | } |
9850bf21 RH |
2804 | else if (CxMULTICALL(cx)) |
2805 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2806 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2807 | /* put @_ back onto stack */ |
a0d0e21e | 2808 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2809 | |
93965878 | 2810 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2811 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2812 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2813 | SvREFCNT_dec(GvAV(PL_defgv)); |
2814 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2815 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2816 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2817 | if (AvREAL(av)) { |
b1464ded DM |
2818 | reified = 1; |
2819 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2820 | av = newAV(); |
2821 | av_extend(av, items-1); | |
11ca45c0 | 2822 | AvREIFY_only(av); |
ad64d0ec | 2823 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2824 | } |
a0d0e21e | 2825 | } |
aed2304a | 2826 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2827 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2828 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2829 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2830 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2831 | } |
a45cdc79 DM |
2832 | mark = SP; |
2833 | SP += items; | |
6b35e009 | 2834 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2835 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2836 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2837 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2838 | LEAVE_SCOPE(oldsave); |
2839 | ||
1d59c038 FC |
2840 | /* A destructor called during LEAVE_SCOPE could have undefined |
2841 | * our precious cv. See bug #99850. */ | |
2842 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
2843 | const GV * const gv = CvGV(cv); | |
2844 | if (gv) { | |
2845 | SV * const tmpstr = sv_newmortal(); | |
2846 | gv_efullname3(tmpstr, gv, NULL); | |
2847 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", | |
2848 | SVfARG(tmpstr)); | |
2849 | } | |
2850 | DIE(aTHX_ "Goto undefined subroutine"); | |
2851 | } | |
2852 | ||
a0d0e21e LW |
2853 | /* Now do some callish stuff. */ |
2854 | SAVETMPS; | |
5023d17a | 2855 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2856 | if (CvISXSUB(cv)) { |
b37c2d43 | 2857 | OP* const retop = cx->blk_sub.retop; |
9d63fa07 KW |
2858 | SV **newsp PERL_UNUSED_DECL; |
2859 | I32 gimme PERL_UNUSED_DECL; | |
b1464ded DM |
2860 | if (reified) { |
2861 | I32 index; | |
2862 | for (index=0; index<items; index++) | |
2863 | sv_2mortal(SP[-index]); | |
2864 | } | |
1fa4e549 | 2865 | |
b37c2d43 AL |
2866 | /* XS subs don't have a CxSUB, so pop it */ |
2867 | POPBLOCK(cx, PL_curpm); | |
2868 | /* Push a mark for the start of arglist */ | |
2869 | PUSHMARK(mark); | |
2870 | PUTBACK; | |
2871 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2872 | LEAVE; |
5eff7df7 | 2873 | return retop; |
a0d0e21e LW |
2874 | } |
2875 | else { | |
b70d5558 | 2876 | PADLIST * const padlist = CvPADLIST(cv); |
6b35e009 | 2877 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2878 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2879 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2880 | cx->cx_type = CXt_SUB; |
b150fb22 | 2881 | } |
a0d0e21e | 2882 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2883 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2884 | |
a0d0e21e LW |
2885 | CvDEPTH(cv)++; |
2886 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2887 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2888 | else { |
2b9dff67 | 2889 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2890 | sub_crush_depth(cv); |
26019298 | 2891 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2892 | } |
426a09cd | 2893 | PL_curcop = cx->blk_oldcop; |
fd617465 DM |
2894 | SAVECOMPPAD(); |
2895 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2896 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2897 | { |
502c6561 | 2898 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2899 | |
3280af22 | 2900 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2901 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2902 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2903 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2904 | |
2905 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2906 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2907 | if (AvARRAY(av) != ary) { |
2908 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2909 | AvARRAY(av) = ary; |
a0d0e21e LW |
2910 | } |
2911 | if (items >= AvMAX(av) + 1) { | |
2912 | AvMAX(av) = items - 1; | |
2913 | Renew(ary,items+1,SV*); | |
2914 | AvALLOC(av) = ary; | |
9c6bc640 | 2915 | AvARRAY(av) = ary; |
a0d0e21e LW |
2916 | } |
2917 | } | |
a45cdc79 | 2918 | ++mark; |
a0d0e21e | 2919 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2920 | AvFILLp(av) = items - 1; |
d8b46c1b | 2921 | assert(!AvREAL(av)); |
b1464ded DM |
2922 | if (reified) { |
2923 | /* transfer 'ownership' of refcnts to new @_ */ | |
2924 | AvREAL_on(av); | |
2925 | AvREIFY_off(av); | |
2926 | } | |
a0d0e21e LW |
2927 | while (items--) { |
2928 | if (*mark) | |
2929 | SvTEMP_off(*mark); | |
2930 | mark++; | |
2931 | } | |
2932 | } | |
491527d0 | 2933 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2934 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2935 | if (PERLDB_GOTO) { |
b96d8cd9 | 2936 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2937 | if (gotocv) { |
2938 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2939 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2940 | PL_stack_sp--; |
2941 | } | |
491527d0 | 2942 | } |
1ce6579f | 2943 | } |
a0d0e21e LW |
2944 | RETURNOP(CvSTART(cv)); |
2945 | } | |
2946 | } | |
1614b0e3 | 2947 | else { |
5db1eb8d BF |
2948 | label = SvPV_const(sv, label_len); |
2949 | label_flags = SvUTF8(sv); | |
1614b0e3 | 2950 | } |
a0d0e21e | 2951 | } |
2fc690dc | 2952 | else if (!(PL_op->op_flags & OPf_SPECIAL)) { |
5db1eb8d BF |
2953 | label = cPVOP->op_pv; |
2954 | label_flags = (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0; | |
2955 | label_len = strlen(label); | |
2956 | } | |
2fc690dc | 2957 | if (!(do_dump || label_len)) DIE(aTHX_ must_have_label); |
a0d0e21e | 2958 | |
f410a211 NC |
2959 | PERL_ASYNC_CHECK(); |
2960 | ||
3532f34a | 2961 | if (label_len) { |
cbbf8932 | 2962 | OP *gotoprobe = NULL; |
3b2447bc | 2963 | bool leaving_eval = FALSE; |
33d34e4c | 2964 | bool in_block = FALSE; |
cbbf8932 | 2965 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2966 | |
2967 | /* find label */ | |
2968 | ||
d4c19fe8 | 2969 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2970 | *enterops = 0; |
2971 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2972 | cx = &cxstack[ix]; | |
6b35e009 | 2973 | switch (CxTYPE(cx)) { |
a0d0e21e | 2974 | case CXt_EVAL: |
3b2447bc | 2975 | leaving_eval = TRUE; |
971ecbe6 | 2976 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2977 | gotoprobe = (last_eval_cx ? |
2978 | last_eval_cx->blk_eval.old_eval_root : | |
2979 | PL_eval_root); | |
2980 | last_eval_cx = cx; | |
9c5794fe RH |
2981 | break; |
2982 | } | |
2983 | /* else fall through */ | |
c6fdafd0 | 2984 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2985 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2986 | case CXt_LOOP_FOR: |
2987 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2988 | case CXt_GIVEN: |
2989 | case CXt_WHEN: | |
a0d0e21e LW |
2990 | gotoprobe = cx->blk_oldcop->op_sibling; |
2991 | break; | |
2992 | case CXt_SUBST: | |
2993 | continue; | |
2994 | case CXt_BLOCK: | |
33d34e4c | 2995 | if (ix) { |
a0d0e21e | 2996 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2997 | in_block = TRUE; |
2998 | } else | |
3280af22 | 2999 | gotoprobe = PL_main_root; |
a0d0e21e | 3000 | break; |
b3933176 | 3001 | case CXt_SUB: |
9850bf21 | 3002 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
3003 | gotoprobe = CvROOT(cx->blk_sub.cv); |
3004 | break; | |
3005 | } | |
3006 | /* FALL THROUGH */ | |
7766f137 | 3007 | case CXt_FORMAT: |
0a753a76 | 3008 | case CXt_NULL: |
a651a37d | 3009 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
3010 | default: |
3011 | if (ix) | |
5637ef5b NC |
3012 | DIE(aTHX_ "panic: goto, type=%u, ix=%ld", |
3013 | CxTYPE(cx), (long) ix); | |
3280af22 | 3014 | gotoprobe = PL_main_root; |
a0d0e21e LW |
3015 | break; |
3016 | } | |
2b597662 | 3017 | if (gotoprobe) { |
5db1eb8d | 3018 | retop = dofindlabel(gotoprobe, label, label_len, label_flags, |
2b597662 GS |
3019 | enterops, enterops + GOTO_DEPTH); |
3020 | if (retop) | |
3021 | break; | |
eae48c89 Z |
3022 | if (gotoprobe->op_sibling && |
3023 | gotoprobe->op_sibling->op_type == OP_UNSTACK && | |
3024 | gotoprobe->op_sibling->op_sibling) { | |
3025 | retop = dofindlabel(gotoprobe->op_sibling->op_sibling, | |
5db1eb8d BF |
3026 | label, label_len, label_flags, enterops, |
3027 | enterops + GOTO_DEPTH); | |
eae48c89 Z |
3028 | if (retop) |
3029 | break; | |
3030 | } | |
2b597662 | 3031 | } |
3280af22 | 3032 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
3033 | } |
3034 | if (!retop) | |
5db1eb8d BF |
3035 | DIE(aTHX_ "Can't find label %"SVf, |
3036 | SVfARG(newSVpvn_flags(label, label_len, | |
3037 | SVs_TEMP | label_flags))); | |
a0d0e21e | 3038 | |
3b2447bc RH |
3039 | /* if we're leaving an eval, check before we pop any frames |
3040 | that we're not going to punt, otherwise the error | |
3041 | won't be caught */ | |
3042 | ||
3043 | if (leaving_eval && *enterops && enterops[1]) { | |
3044 | I32 i; | |
3045 | for (i = 1; enterops[i]; i++) | |
3046 | if (enterops[i]->op_type == OP_ENTERITER) | |
3047 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
3048 | } | |
3049 | ||
b500e03b GG |
3050 | if (*enterops && enterops[1]) { |
3051 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
3052 | if (enterops[i]) | |
3053 | deprecate("\"goto\" to jump into a construct"); | |
3054 | } | |
3055 | ||
a0d0e21e LW |
3056 | /* pop unwanted frames */ |
3057 | ||
3058 | if (ix < cxstack_ix) { | |
3059 | I32 oldsave; | |
3060 | ||
3061 | if (ix < 0) | |
3062 | ix = 0; | |
3063 | dounwind(ix); | |
3064 | TOPBLOCK(cx); | |
3280af22 | 3065 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
3066 | LEAVE_SCOPE(oldsave); |
3067 | } | |
3068 | ||
3069 | /* push wanted frames */ | |
3070 | ||
748a9306 | 3071 | if (*enterops && enterops[1]) { |
0bd48802 | 3072 | OP * const oldop = PL_op; |
33d34e4c AE |
3073 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
3074 | for (; enterops[ix]; ix++) { | |
533c011a | 3075 | PL_op = enterops[ix]; |
84902520 TB |
3076 | /* Eventually we may want to stack the needed arguments |
3077 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 3078 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 3079 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 3080 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 3081 | } |
533c011a | 3082 | PL_op = oldop; |
a0d0e21e LW |
3083 | } |
3084 | } | |
3085 | ||
3086 | if (do_dump) { | |
a5f75d66 | 3087 | #ifdef VMS |
6b88bc9c | 3088 | if (!retop) retop = PL_main_start; |
a5f75d66 | 3089 | #endif |
3280af22 NIS |
3090 | PL_restartop = retop; |
3091 | PL_do_undump = TRUE; | |
a0d0e21e LW |
3092 | |
3093 | my_unexec(); | |
3094 | ||
3280af22 NIS |
3095 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
3096 | PL_do_undump = FALSE; | |
a0d0e21e LW |
3097 | } |
3098 | ||
3099 | RETURNOP(retop); | |
3100 | } | |
3101 | ||
3102 | PP(pp_exit) | |
3103 | { | |
97aff369 | 3104 | dVAR; |
39644a26 | 3105 | dSP; |
a0d0e21e LW |
3106 | I32 anum; |
3107 | ||
3108 | if (MAXARG < 1) | |
3109 | anum = 0; | |
9d3c658e FC |
3110 | else if (!TOPs) { |
3111 | anum = 0; (void)POPs; | |
3112 | } | |
ff0cee69 | 3113 | else { |
a0d0e21e | 3114 | anum = SvIVx(POPs); |
d98f61e7 GS |
3115 | #ifdef VMS |
3116 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 3117 | anum = 0; |
96e176bf | 3118 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 3119 | #endif |
3120 | } | |
cc3604b1 | 3121 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
3122 | #ifdef PERL_MAD |
3123 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
3124 | if (anum || !(PL_minus_c && PL_madskills)) | |
3125 | my_exit(anum); | |
3126 | #else | |
a0d0e21e | 3127 | my_exit(anum); |
81d86705 | 3128 | #endif |
3280af22 | 3129 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
3130 | RETURN; |
3131 | } | |
3132 | ||
a0d0e21e LW |
3133 | /* Eval. */ |
3134 | ||
0824fdcb | 3135 | STATIC void |
cea2e8a9 | 3136 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 3137 | { |
504618e9 | 3138 | const char *s = SvPVX_const(sv); |
890ce7af | 3139 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 3140 | I32 line = 1; |
a0d0e21e | 3141 | |
7918f24d NC |
3142 | PERL_ARGS_ASSERT_SAVE_LINES; |
3143 | ||
a0d0e21e | 3144 | while (s && s < send) { |
f54cb97a | 3145 | const char *t; |
b9f83d2f | 3146 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 3147 | |
1d963ff3 | 3148 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
3149 | if (t) |
3150 | t++; | |
3151 | else | |
3152 | t = send; | |
3153 | ||
3154 | sv_setpvn(tmpstr, s, t - s); | |
3155 | av_store(array, line++, tmpstr); | |
3156 | s = t; | |
3157 | } | |
3158 | } | |
3159 | ||
22f16304 RU |
3160 | /* |
3161 | =for apidoc docatch | |
3162 | ||
3163 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
3164 | ||
3165 | 0 is used as continue inside eval, | |
3166 | ||
3167 | 3 is used for a die caught by an inner eval - continue inner loop | |
3168 | ||
3169 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
3170 | establish a local jmpenv to handle exception traps. | |
3171 | ||
3172 | =cut | |
3173 | */ | |
0824fdcb | 3174 | STATIC OP * |
cea2e8a9 | 3175 | S_docatch(pTHX_ OP *o) |
1e422769 | 3176 | { |
97aff369 | 3177 | dVAR; |
6224f72b | 3178 | int ret; |
06b5626a | 3179 | OP * const oldop = PL_op; |
db36c5a1 | 3180 | dJMPENV; |
1e422769 | 3181 | |
1e422769 | 3182 | #ifdef DEBUGGING |
54310121 | 3183 | assert(CATCH_GET == TRUE); |
1e422769 | 3184 | #endif |
312caa8e | 3185 | PL_op = o; |
8bffa5f8 | 3186 | |
14dd3ad8 | 3187 | JMPENV_PUSH(ret); |
6224f72b | 3188 | switch (ret) { |
312caa8e | 3189 | case 0: |
abd70938 DM |
3190 | assert(cxstack_ix >= 0); |
3191 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3192 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 3193 | redo_body: |
85aaa934 | 3194 | CALLRUNOPS(aTHX); |
312caa8e CS |
3195 | break; |
3196 | case 3: | |
8bffa5f8 | 3197 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
3198 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
3199 | PL_restartjmpenv = NULL; | |
312caa8e CS |
3200 | PL_op = PL_restartop; |
3201 | PL_restartop = 0; | |
3202 | goto redo_body; | |
3203 | } | |
3204 | /* FALL THROUGH */ | |
3205 | default: | |
14dd3ad8 | 3206 | JMPENV_POP; |
533c011a | 3207 | PL_op = oldop; |
6224f72b | 3208 | JMPENV_JUMP(ret); |
118e2215 | 3209 | assert(0); /* NOTREACHED */ |
1e422769 | 3210 | } |
14dd3ad8 | 3211 | JMPENV_POP; |
533c011a | 3212 | PL_op = oldop; |
5f66b61c | 3213 | return NULL; |
1e422769 | 3214 | } |
3215 | ||
a3985cdc DM |
3216 | |
3217 | /* | |
3218 | =for apidoc find_runcv | |
3219 | ||
3220 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3221 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3222 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3223 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3224 | than in the scope of the debugger itself). |
a3985cdc DM |
3225 | |
3226 | =cut | |
3227 | */ | |
3228 | ||
3229 | CV* | |
d819b83a | 3230 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3231 | { |
db4cf31d | 3232 | return Perl_find_runcv_where(aTHX_ 0, 0, db_seqp); |
70794f7b FC |
3233 | } |
3234 | ||
3235 | /* If this becomes part of the API, it might need a better name. */ | |
3236 | CV * | |
db4cf31d | 3237 | Perl_find_runcv_where(pTHX_ U8 cond, IV arg, U32 *db_seqp) |
70794f7b | 3238 | { |
97aff369 | 3239 | dVAR; |
a3985cdc | 3240 | PERL_SI *si; |
b4b0692a | 3241 | int level = 0; |
a3985cdc | 3242 | |
d819b83a DM |
3243 | if (db_seqp) |
3244 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3245 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3246 | I32 ix; |
a3985cdc | 3247 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3248 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
70794f7b | 3249 | CV *cv = NULL; |
d819b83a | 3250 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
70794f7b | 3251 | cv = cx->blk_sub.cv; |
d819b83a DM |
3252 | /* skip DB:: code */ |
3253 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3254 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3255 | continue; | |
3256 | } | |
d819b83a | 3257 | } |
a3985cdc | 3258 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
70794f7b FC |
3259 | cv = cx->blk_eval.cv; |
3260 | if (cv) { | |
3261 | switch (cond) { | |
db4cf31d FC |
3262 | case FIND_RUNCV_padid_eq: |
3263 | if (!CvPADLIST(cv) | |
3264 | || CvPADLIST(cv)->xpadl_id != (U32)arg) continue; | |
b4b0692a FC |
3265 | return cv; |
3266 | case FIND_RUNCV_level_eq: | |
db4cf31d | 3267 | if (level++ != arg) continue; |
70794f7b FC |
3268 | /* GERONIMO! */ |
3269 | default: | |
3270 | return cv; | |
3271 | } | |
3272 | } | |
a3985cdc DM |
3273 | } |
3274 | } | |
db4cf31d | 3275 | return cond == FIND_RUNCV_padid_eq ? NULL : PL_main_cv; |
a3985cdc DM |
3276 | } |
3277 | ||
3278 | ||
27e90453 DM |
3279 | /* Run yyparse() in a setjmp wrapper. Returns: |
3280 | * 0: yyparse() successful | |
3281 | * 1: yyparse() failed | |
3282 | * 3: yyparse() died | |
3283 | */ | |
3284 | STATIC int | |
28ac2b49 | 3285 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3286 | { |
3287 | int ret; | |
3288 | dJMPENV; | |
3289 | ||
3290 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3291 | JMPENV_PUSH(ret); | |
3292 | switch (ret) { | |
3293 | case 0: | |
28ac2b49 | 3294 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3295 | break; |
3296 | case 3: | |
3297 | break; | |
3298 | default: | |
3299 | JMPENV_POP; | |
3300 | JMPENV_JUMP(ret); | |
118e2215 | 3301 | assert(0); /* NOTREACHED */ |
27e90453 DM |
3302 | } |
3303 | JMPENV_POP; | |
3304 | return ret; | |
3305 | } | |
3306 | ||
3307 | ||
104a8185 DM |
3308 | /* Compile a require/do or an eval ''. |
3309 | * | |
a3985cdc | 3310 | * outside is the lexically enclosing CV (if any) that invoked us. |
104a8185 DM |
3311 | * seq is the current COP scope value. |
3312 | * hh is the saved hints hash, if any. | |
3313 | * | |
410be5db | 3314 | * Returns a bool indicating whether the compile was successful; if so, |
104a8185 DM |
3315 | * PL_eval_start contains the first op of the compiled code; otherwise, |
3316 | * pushes undef. | |
3317 | * | |
3318 | * This function is called from two places: pp_require and pp_entereval. | |
3319 | * These can be distinguished by whether PL_op is entereval. | |
7d116edc FC |
3320 | */ |
3321 | ||
410be5db | 3322 | STATIC bool |
104a8185 | 3323 | S_doeval(pTHX_ int gimme, CV* outside, U32 seq, HV *hh) |
a0d0e21e | 3324 | { |
27da23d5 | 3325 | dVAR; dSP; |
46c461b5 | 3326 | OP * const saveop = PL_op; |
104a8185 | 3327 | bool clear_hints = saveop->op_type != OP_ENTEREVAL; |
f45b078d | 3328 | COP * const oldcurcop = PL_curcop; |
26c9400e | 3329 | bool in_require = (saveop->op_type == OP_REQUIRE); |
27e90453 | 3330 | int yystatus; |
676a678a | 3331 | CV *evalcv; |
a0d0e21e | 3332 | |
27e90453 | 3333 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3334 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3335 | : EVAL_INEVAL); | |
a0d0e21e | 3336 | |
1ce6579f | 3337 | PUSHMARK(SP); |
3338 | ||
676a678a Z |
3339 | evalcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
3340 | CvEVAL_on(evalcv); | |
2090ab20 | 3341 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
676a678a | 3342 | cxstack[cxstack_ix].blk_eval.cv = evalcv; |
86a64801 | 3343 | cxstack[cxstack_ix].blk_gimme = gimme; |
2090ab20 | 3344 | |
676a678a Z |
3345 | CvOUTSIDE_SEQ(evalcv) = seq; |
3346 | CvOUTSIDE(evalcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); | |
a3985cdc | 3347 | |
dd2155a4 | 3348 | /* set up a scratch pad */ |
a0d0e21e | 3349 | |
676a678a | 3350 | CvPADLIST(evalcv) = pad_new(padnew_SAVE); |
cecbe010 | 3351 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3352 | |
07055b4c | 3353 | |
81d86705 | 3354 | if (!PL_madskills) |
676a678a | 3355 | SAVEMORTALIZESV(evalcv); /* must remain until end of current statement */ |
748a9306 | 3356 | |
a0d0e21e LW |
3357 | /* make sure we compile in the right package */ |
3358 | ||
ed094faf | 3359 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
03d9f026 FC |
3360 | SAVEGENERICSV(PL_curstash); |
3361 | PL_curstash = (HV *)SvREFCNT_inc_simple(CopSTASH(PL_curcop)); | |
a0d0e21e | 3362 | } |
3c10abe3 | 3363 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3364 | SAVESPTR(PL_beginav); |
3365 | PL_beginav = newAV(); | |
3366 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3367 | SAVESPTR(PL_unitcheckav); |
3368 | PL_unitcheckav = newAV(); | |
3369 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3370 | |
81d86705 | 3371 | #ifdef PERL_MAD |
9da243ce | 3372 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3373 | PL_madskills = 0; |
3374 | #endif | |
3375 | ||
104a8185 | 3376 | ENTER_with_name("evalcomp"); |
676a678a Z |
3377 | SAVESPTR(PL_compcv); |
3378 | PL_compcv = evalcv; | |
3379 | ||
a0d0e21e LW |
3380 | /* try to compile it */ |
3381 | ||
5f66b61c | 3382 | PL_eval_root = NULL; |
3280af22 | 3383 | PL_curcop = &PL_compiling; |
26c9400e | 3384 | if ((saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3385 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3386 | else |
3387 | CLEAR_ERRSV(); | |
27e90453 | 3388 | |
377b5421 DM |
3389 | SAVEHINTS(); |
3390 | if (clear_hints) { | |
3391 | PL_hints = 0; | |
3392 | hv_clear(GvHV(PL_hintgv)); | |
3393 | } | |
3394 | else { | |
3395 | PL_hints = saveop->op_private & OPpEVAL_COPHH | |
3396 | ? oldcurcop->cop_hints : saveop->op_targ; | |
3397 | if (hh) { | |
3398 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3399 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
3400 | GvHV(PL_hintgv) = hh; | |
3401 | } | |
3402 | } | |
3403 | SAVECOMPILEWARNINGS(); | |
3404 | if (clear_hints) { | |
3405 | if (PL_dowarn & G_WARN_ALL_ON) | |
3406 | PL_compiling.cop_warnings = pWARN_ALL ; | |
3407 | else if (PL_dowarn & G_WARN_ALL_OFF) | |
3408 | PL_compiling.cop_warnings = pWARN_NONE ; | |
3409 | else | |
3410 | PL_compiling.cop_warnings = pWARN_STD ; | |
3411 | } | |
3412 | else { | |
3413 | PL_compiling.cop_warnings = | |
3414 | DUP_WARNINGS(oldcurcop->cop_warnings); | |
3415 | cophh_free(CopHINTHASH_get(&PL_compiling)); | |
3416 | if (Perl_cop_fetch_label(aTHX_ oldcurcop, NULL, NULL)) { | |
3417 | /* The label, if present, is the first entry on the chain. So rather | |
3418 | than writing a blank label in front of it (which involves an | |
3419 | allocation), just use the next entry in the chain. */ | |
3420 | PL_compiling.cop_hints_hash | |
3421 | = cophh_copy(oldcurcop->cop_hints_hash->refcounted_he_next); | |
3422 | /* Check the assumption that this removed the label. */ | |
3423 | assert(Perl_cop_fetch_label(aTHX_ &PL_compiling, NULL, NULL) == NULL); | |
f45b078d | 3424 | } |
377b5421 DM |
3425 | else |
3426 | PL_compiling.cop_hints_hash = cophh_copy(oldcurcop->cop_hints_hash); | |
3427 | } | |
f45b078d | 3428 | |
a88d97bf | 3429 | CALL_BLOCK_HOOKS(bhk_eval, saveop); |
52db365a | 3430 | |
27e90453 DM |
3431 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3432 | * so honour CATCH_GET and trap it here if necessary */ | |
3433 | ||
28ac2b49 | 3434 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3435 | |
3436 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3437 | SV **newsp; /* Used by POPBLOCK. */ |
d164302a | 3438 | PERL_CONTEXT *cx; |
27e90453 | 3439 | I32 optype; /* Used by POPEVAL. */ |
d164302a | 3440 | SV *namesv; |
bfed75c6 | 3441 | |
d164302a GG |
3442 | cx = NULL; |
3443 | namesv = NULL; | |
27e90453 DM |
3444 | PERL_UNUSED_VAR(newsp); |
3445 | PERL_UNUSED_VAR(optype); | |
3446 | ||
c86ffc32 DM |
3447 | /* note that if yystatus == 3, then the EVAL CX block has already |
3448 | * been popped, and various vars restored */ | |
533c011a | 3449 | PL_op = saveop; |
27e90453 | 3450 | if (yystatus != 3) { |
c86ffc32 | 3451 | if (PL_eval_root) { |
8be227ab | 3452 | cv_forget_slab(evalcv); |
c86ffc32 DM |
3453 | op_free(PL_eval_root); |
3454 | PL_eval_root = NULL; | |
3455 | } | |
27e90453 | 3456 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
377b5421 DM |
3457 | POPBLOCK(cx,PL_curpm); |
3458 | POPEVAL(cx); | |
3459 | namesv = cx->blk_eval.old_namesv; | |
bbde7ba3 | 3460 | /* POPBLOCK renders LEAVE_with_name("evalcomp") unnecessary. */ |
27e90453 | 3461 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ |
cd6472fc | 3462 | } |
9d4ba2ae | 3463 | |
27e90453 | 3464 | if (in_require) { |
b6494f15 VP |
3465 | if (!cx) { |
3466 | /* If cx is still NULL, it means that we didn't go in the | |
3467 | * POPEVAL branch. */ | |
3468 | cx = &cxstack[cxstack_ix]; | |
3469 | assert(CxTYPE(cx) == CXt_EVAL); | |
3470 | namesv = cx->blk_eval.old_namesv; | |
3471 | } | |
3472 | (void)hv_store(GvHVn(PL_incgv), | |
ecad31f0 | 3473 | SvPVX_const(namesv), |
c60dbbc3 | 3474 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 | 3475 | &PL_sv_undef, 0); |
ecad31f0 BF |
3476 | Perl_croak(aTHX_ "%"SVf"Compilation failed in require", |
3477 | SVfARG(ERRSV | |
3478 | ? ERRSV | |
3479 | : newSVpvs_flags("Unknown error\n", SVs_TEMP))); | |
5a844595 | 3480 | } |
9d7f88dd | 3481 | else { |
ecad31f0 | 3482 | if (!*(SvPVx_nolen_const(ERRSV))) { |
6502358f | 3483 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3484 | } |
3485 | } | |
2bf54cc6 | 3486 | if (gimme != G_ARRAY) PUSHs(&PL_sv_undef); |
410be5db DM |
3487 | PUTBACK; |
3488 | return FALSE; | |
a0d0e21e | 3489 | } |
104a8185 DM |
3490 | else |
3491 | LEAVE_with_name("evalcomp"); | |
3492 | ||
57843af0 | 3493 | CopLINE_set(&PL_compiling, 0); |
104a8185 | 3494 | SAVEFREEOP(PL_eval_root); |
8be227ab | 3495 | cv_forget_slab(evalcv); |
0c58d367 | 3496 | |
a0d0e21e LW |
3497 | DEBUG_x(dump_eval()); |
3498 | ||
55497cff | 3499 | /* Register with debugger: */ |
26c9400e | 3500 | if (PERLDB_INTER && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3501 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3502 | if (cv) { |
3503 | dSP; | |
924508f0 | 3504 | PUSHMARK(SP); |
ad64d0ec | 3505 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3506 | PUTBACK; |
ad64d0ec | 3507 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3508 | } |
3509 | } | |
3510 | ||
8ed49485 FC |
3511 | if (PL_unitcheckav) { |
3512 | OP *es = PL_eval_start; | |
3c10abe3 | 3513 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3514 | PL_eval_start = es; |
3515 | } | |
3c10abe3 | 3516 | |
a0d0e21e LW |
3517 | /* compiled okay, so do it */ |
3518 | ||
676a678a | 3519 | CvDEPTH(evalcv) = 1; |
3280af22 | 3520 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
533c011a | 3521 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3522 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3523 | |
410be5db DM |
3524 | PUTBACK; |
3525 | return TRUE; | |
a0d0e21e LW |
3526 | } |
3527 | ||
a6c40364 | 3528 | STATIC PerlIO * |
282b29ee | 3529 | S_check_type_and_open(pTHX_ SV *name) |
ce8abf5f SP |
3530 | { |
3531 | Stat_t st; | |
282b29ee NC |
3532 | const char *p = SvPV_nolen_const(name); |
3533 | const int st_rc = PerlLIO_stat(p, &st); | |
df528165 | 3534 | |
7918f24d NC |
3535 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3536 | ||
6b845e56 | 3537 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3538 | return NULL; |
ce8abf5f SP |
3539 | } |
3540 | ||
ccb84406 | 3541 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
639dfab0 | 3542 | return PerlIO_openn(aTHX_ ":", PERL_SCRIPT_MODE, -1, 0, 0, NULL, 1, &name); |
ccb84406 | 3543 | #else |
282b29ee | 3544 | return PerlIO_open(p, PERL_SCRIPT_MODE); |
ccb84406 | 3545 | #endif |
ce8abf5f SP |
3546 | } |
3547 | ||
75c20bac | 3548 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3549 | STATIC PerlIO * |
282b29ee | 3550 | S_doopen_pm(pTHX_ SV *name) |
b295d113 | 3551 | { |
282b29ee NC |
3552 | STRLEN namelen; |
3553 | const char *p = SvPV_const(name, namelen); | |
b295d113 | 3554 | |
7918f24d NC |
3555 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3556 | ||
282b29ee | 3557 | if (namelen > 3 && memEQs(p + namelen - 3, 3, ".pm")) { |
eb70bb4a | 3558 | SV *const pmcsv = sv_newmortal(); |
a6c40364 | 3559 | Stat_t pmcstat; |
50b8ed39 | 3560 | |
eb70bb4a | 3561 | SvSetSV_nosteal(pmcsv,name); |
282b29ee | 3562 | sv_catpvn(pmcsv, "c", 1); |
50b8ed39 | 3563 | |
282b29ee NC |
3564 | if (PerlLIO_stat(SvPV_nolen_const(pmcsv), &pmcstat) >= 0) |
3565 | return check_type_and_open(pmcsv); | |
a6c40364 | 3566 | } |
282b29ee | 3567 | return check_type_and_open(name); |
75c20bac | 3568 | } |
7925835c | 3569 | #else |
282b29ee | 3570 | # define doopen_pm(name) check_type_and_open(name) |
7925835c | 3571 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3572 | |
a0d0e21e LW |
3573 | PP(pp_require) |
3574 | { | |
27da23d5 | 3575 | dVAR; dSP; |
eb578fdb | 3576 | PERL_CONTEXT *cx; |
a0d0e21e | 3577 | SV *sv; |
5c144d81 | 3578 | const char *name; |
6132ea6c | 3579 | STRLEN len; |
4492be7a JM |
3580 | char * unixname; |
3581 | STRLEN unixlen; | |
62f5ad7a | 3582 | #ifdef VMS |
4492be7a | 3583 | int vms_unixname = 0; |
155f4c25 CB |
3584 | char *unixnamebuf; |
3585 | char *unixdir; | |
3586 | char *unixdirbuf; | |
62f5ad7a | 3587 | #endif |
c445ea15 AL |
3588 | const char *tryname = NULL; |
3589 | SV *namesv = NULL; | |
f54cb97a | 3590 | const I32 gimme = GIMME_V; |
bbed91b5 | 3591 | int filter_has_file = 0; |
c445ea15 | 3592 | PerlIO *tryrsfp = NULL; |
34113e50 | 3593 | SV *filter_cache = NULL; |
c445ea15 AL |
3594 | SV *filter_state = NULL; |
3595 | SV *filter_sub = NULL; | |
3596 | SV *hook_sv = NULL; | |
6ec9efec JH |
3597 | SV *encoding; |
3598 | OP *op; | |
83b195e4 | 3599 | int saved_errno; |
a0d0e21e LW |
3600 | |
3601 | sv = POPs; | |
d7aa5382 | 3602 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d086148c | 3603 | sv = sv_2mortal(new_version(sv)); |
d7aa5382 | 3604 | if (!sv_derived_from(PL_patchlevel, "version")) |
ac0e6a2f | 3605 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3606 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3607 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3608 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
e753e3b1 FC |
3609 | SVfARG(sv_2mortal(vnormal(sv))), |
3610 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3611 | ); | |
468aa647 RGS |
3612 | } |
3613 | else { | |
d1029faa JP |
3614 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3615 | I32 first = 0; | |
3616 | AV *lav; | |
3617 | SV * const req = SvRV(sv); | |
85fbaab2 | 3618 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3619 | |
3620 | /* get the left hand term */ | |
502c6561 | 3621 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3622 | |
3623 | first = SvIV(*av_fetch(lav,0,0)); | |
3624 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3625 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3626 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3627 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3628 | ) { | |
3629 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
9d056fb0 FC |
3630 | "%"SVf", stopped", |
3631 | SVfARG(sv_2mortal(vnormal(req))), | |
3632 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3633 | ); | |
d1029faa JP |
3634 | } |
3635 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3636 | SV *hintsv; |
d1029faa JP |
3637 | I32 second = 0; |
3638 | ||
3639 | if (av_len(lav)>=1) | |
3640 | second = SvIV(*av_fetch(lav,1,0)); | |
3641 | ||
3642 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3643 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3644 | (int)first, (int)second); | |
d1029faa JP |
3645 | upg_version(hintsv, TRUE); |
3646 | ||
3647 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3648 | "--this is only %"SVf", stopped", | |
1be7d6f3 FC |
3649 | SVfARG(sv_2mortal(vnormal(req))), |
3650 | SVfARG(sv_2mortal(vnormal(sv_2mortal(hintsv)))), | |
3651 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3652 | ); | |
d1029faa JP |
3653 | } |
3654 | } | |
468aa647 | 3655 | } |
d7aa5382 | 3656 | |
7dfde25d | 3657 | RETPUSHYES; |
a0d0e21e | 3658 | } |
5c144d81 | 3659 | name = SvPV_const(sv, len); |
6132ea6c | 3660 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3661 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3662 | TAINT_PROPER("require"); |
4492be7a JM |
3663 | |
3664 | ||
3665 | #ifdef VMS | |
3666 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3667 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3668 | * can result in a module being pulled in more than once. | |
3669 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3670 | * name can be translated to UNIX. | |
3671 | */ | |
155f4c25 CB |
3672 | |
3673 | if ((unixnamebuf = SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1)))) | |
3674 | && (unixname = tounixspec(name, unixnamebuf)) != NULL) { | |
4492be7a JM |
3675 | unixlen = strlen(unixname); |
3676 | vms_unixname = 1; | |
3677 | } | |
3678 | else | |
3679 | #endif | |
3680 | { | |
3681 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3682 | * through. | |
3683 | */ | |
3684 | unixname = (char *) name; | |
3685 | unixlen = len; | |
3686 | } | |
44f8325f | 3687 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3688 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3689 | unixname, unixlen, 0); | |
44f8325f AL |
3690 | if ( svp ) { |
3691 | if (*svp != &PL_sv_undef) | |
3692 | RETPUSHYES; | |
3693 | else | |
087b5369 RD |
3694 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3695 | "Compilation failed in require", unixname); | |
44f8325f | 3696 | } |
4d8b06f1 | 3697 | } |
a0d0e21e | 3698 | |
32aeab29 SM |
3699 | LOADING_FILE_PROBE(unixname); |
3700 | ||
a0d0e21e LW |
3701 | /* prepare to compile file */ |
3702 | ||
be4b629d | 3703 | if (path_is_absolute(name)) { |
282b29ee | 3704 | /* At this point, name is SvPVX(sv) */ |
46fc3d4c | 3705 | tryname = name; |
282b29ee | 3706 | tryrsfp = doopen_pm(sv); |
bf4acbe4 | 3707 | } |
2433d39e | 3708 | if (!tryrsfp && !(errno == EACCES && path_is_absolute(name))) { |
44f8325f | 3709 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3710 | I32 i; |
748a9306 | 3711 | #ifdef VMS |
4492be7a | 3712 | if (vms_unixname) |
46fc3d4c | 3713 | #endif |
3714 | { | |
d0328fd7 | 3715 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3716 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3717 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3718 | |
ad64d0ec | 3719 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3720 | mg_get(dirsv); |
bbed91b5 KF |
3721 | if (SvROK(dirsv)) { |
3722 | int count; | |
a3b58a99 | 3723 | SV **svp; |
bbed91b5 KF |
3724 | SV *loader = dirsv; |
3725 | ||
e14e2dc8 NC |
3726 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3727 | && !sv_isobject(loader)) | |
3728 | { | |
502c6561 | 3729 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3730 | } |
3731 | ||
b900a521 | 3732 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3733 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3734 | tryname = SvPVX_const(namesv); |
c445ea15 | 3735 | tryrsfp = NULL; |
bbed91b5 | 3736 | |
d343c3ef | 3737 | ENTER_with_name("call_INC"); |
bbed91b5 KF |
3738 | SAVETMPS; |
3739 | EXTEND(SP, 2); | |
3740 | ||
3741 | PUSHMARK(SP); | |
3742 | PUSHs(dirsv); | |
3743 | PUSHs(sv); | |
3744 | PUTBACK; | |
e982885c NC |
3745 | if (sv_isobject(loader)) |
3746 | count = call_method("INC", G_ARRAY); | |
3747 | else | |
3748 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3749 | SPAGAIN; |
3750 | ||
3751 | if (count > 0) { | |
3752 | int i = 0; | |
3753 | SV *arg; | |
3754 | ||
3755 | SP -= count - 1; | |
3756 | arg = SP[i++]; | |
3757 | ||
34113e50 NC |
3758 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3759 | && !isGV_with_GP(SvRV(arg))) { | |
3760 | filter_cache = SvRV(arg); | |
74c765eb | 3761 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3762 | |
3763 | if (i < count) { | |
3764 | arg = SP[i++]; | |
3765 | } | |
3766 | } | |
3767 | ||
6e592b3a | 3768 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3769 | arg = SvRV(arg); |
3770 | } | |
3771 | ||
6e592b3a | 3772 | if (isGV_with_GP(arg)) { |
159b6efe | 3773 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3774 | |
3775 | ++filter_has_file; | |
3776 | ||
3777 | if (io) { | |
3778 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3779 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3780 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3781 | } |
0f7de14d NC |
3782 | IoIFP(io) = NULL; |
3783 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3784 | } |
3785 | ||
3786 | if (i < count) { | |
3787 | arg = SP[i++]; | |
3788 | } | |
3789 | } | |
3790 | ||
3791 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3792 | filter_sub = arg; | |
74c765eb | 3793 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3794 | |
3795 | if (i < count) { | |
3796 | filter_state = SP[i]; | |
b37c2d43 | 3797 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3798 | } |
34113e50 | 3799 | } |
bbed91b5 | 3800 | |
34113e50 NC |
3801 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3802 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3803 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3804 | } |
1d06aecd | 3805 | SP--; |
bbed91b5 KF |
3806 | } |
3807 | ||
3808 | PUTBACK; | |
3809 | FREETMPS; | |
d343c3ef | 3810 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3811 | |
c5f55552 NC |
3812 | /* Adjust file name if the hook has set an %INC entry. |
3813 | This needs to happen after the FREETMPS above. */ | |
3814 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3815 | if (svp) | |
3816 | tryname = SvPV_nolen_const(*svp); | |
3817 | ||
bbed91b5 | 3818 | if (tryrsfp) { |
89ccab8c | 3819 | hook_sv = dirsv; |
bbed91b5 KF |
3820 | break; |
3821 | } | |
3822 | ||
3823 | filter_has_file = 0; | |
34113e50 NC |
3824 | if (filter_cache) { |
3825 | SvREFCNT_dec(filter_cache); | |
3826 | filter_cache = NULL; | |
3827 | } | |
bbed91b5 KF |
3828 | if (filter_state) { |
3829 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3830 | filter_state = NULL; |
bbed91b5 KF |
3831 | } |
3832 | if (filter_sub) { | |
3833 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3834 | filter_sub = NULL; |
bbed91b5 KF |
3835 | } |
3836 | } | |
3837 | else { | |
be4b629d | 3838 | if (!path_is_absolute(name) |
be4b629d | 3839 | ) { |
b640a14a NC |
3840 | const char *dir; |
3841 | STRLEN dirlen; | |
3842 | ||
3843 | if (SvOK(dirsv)) { | |
3844 | dir = SvPV_const(dirsv, dirlen); | |
3845 | } else { | |
3846 | dir = ""; | |
3847 | dirlen = 0; | |
3848 | } | |
3849 | ||
e37778c2 | 3850 | #ifdef VMS |
155f4c25 CB |
3851 | if (((unixdirbuf = SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1)))) == NULL) |
3852 | || ((unixdir = tounixpath(dir, unixdirbuf)) == NULL)) | |
bbed91b5 KF |
3853 | continue; |
3854 | sv_setpv(namesv, unixdir); | |
3855 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3856 | #else |
3857 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3858 | if (PL_origfilename[0] && |
3859 | PL_origfilename[1] == ':' && | |
3860 | !(dir[0] && dir[1] == ':')) | |
3861 | Perl_sv_setpvf(aTHX_ namesv, | |
3862 | "%c:%s\\%s", | |
3863 | PL_origfilename[0], | |
3864 | dir, name); | |
3865 | else | |
3866 | Perl_sv_setpvf(aTHX_ namesv, | |
3867 | "%s\\%s", | |
3868 | dir, name); | |
e37778c2 | 3869 | # else |
b640a14a NC |
3870 | /* The equivalent of |
3871 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3872 | but without the need to parse the format string, or | |
3873 | call strlen on either pointer, and with the correct | |
3874 | allocation up front. */ | |
3875 | { | |
3876 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3877 | ||
3878 | memcpy(tmp, dir, dirlen); | |
3879 | tmp +=dirlen; | |
3880 | *tmp++ = '/'; | |
3881 | /* name came from an SV, so it will have a '\0' at the | |
3882 | end that we can copy as part of this memcpy(). */ | |
3883 | memcpy(tmp, name, len + 1); | |
3884 | ||
3885 | SvCUR_set(namesv, dirlen + len + 1); | |
282b29ee | 3886 | SvPOK_on(namesv); |
b640a14a | 3887 | } |
27da23d5 | 3888 | # endif |
bf4acbe4 | 3889 | #endif |
bbed91b5 | 3890 | TAINT_PROPER("require"); |
349d4f2f | 3891 | tryname = SvPVX_const(namesv); |
282b29ee | 3892 | tryrsfp = doopen_pm(namesv); |
bbed91b5 | 3893 | if (tryrsfp) { |
e63be746 RGS |
3894 | if (tryname[0] == '.' && tryname[1] == '/') { |
3895 | ++tryname; | |
3896 | while (*++tryname == '/'); | |
3897 | } | |
bbed91b5 KF |
3898 | break; |
3899 | } | |
2433d39e BF |
3900 | else if (errno == EMFILE || errno == EACCES) { |
3901 | /* no point in trying other paths if out of handles; | |
3902 | * on the other hand, if we couldn't open one of the | |
3903 | * files, then going on with the search could lead to | |
3904 | * unexpected results; see perl #113422 | |
3905 | */ | |
3906 | break; | |
3907 | } | |
be4b629d | 3908 | } |
46fc3d4c | 3909 | } |
a0d0e21e LW |
3910 | } |
3911 | } | |
3912 | } | |
83b195e4 | 3913 | saved_errno = errno; /* sv_2mortal can realloc things */ |
b2ef6d44 | 3914 | sv_2mortal(namesv); |
a0d0e21e | 3915 | if (!tryrsfp) { |
533c011a | 3916 | if (PL_op->op_type == OP_REQUIRE) { |
83b195e4 | 3917 | if(saved_errno == EMFILE || saved_errno == EACCES) { |
c9d5e35e | 3918 | /* diag_listed_as: Can't locate %s */ |
83b195e4 | 3919 | DIE(aTHX_ "Can't locate %s: %s", name, Strerror(saved_errno)); |
e31de809 SP |
3920 | } else { |
3921 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3922 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3923 | I32 i; |
c9d5e35e NC |
3924 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
3925 | for (i = 0; i <= AvFILL(ar); i++) { | |
3926 | sv_catpvs(inc, " "); | |
3927 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
3928 | } | |
3929 | ||
3930 | /* diag_listed_as: Can't locate %s */ | |
3931 | DIE(aTHX_ | |
3932 | "Can't locate %s in @INC%s%s (@INC contains:%" SVf ")", | |
3933 | name, | |
2fc7dfcb | 3934 | (len >= 2 && memEQ(name + len - 2, ".h", 3) |
686c4ca0 | 3935 | ? " (change .h to .ph maybe?) (did you run h2ph?)" : ""), |
2fc7dfcb | 3936 | (len >= 3 && memEQ(name + len - 3, ".ph", 4) |
c9d5e35e NC |
3937 | ? " (did you run h2ph?)" : ""), |
3938 | inc | |
3939 | ); | |
3940 | } | |
2683423c | 3941 | } |
c9d5e35e | 3942 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
3943 | } |
3944 | ||
a3ff80c1 | 3945 | CLEAR_ERRSV(); |
a0d0e21e LW |
3946 | RETPUSHUNDEF; |
3947 | } | |
d8bfb8bd | 3948 | else |
93189314 | 3949 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3950 | |
3951 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3952 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3953 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3954 | if (!hook_sv) { |
4492be7a | 3955 | (void)hv_store(GvHVn(PL_incgv), |
b2ef6d44 | 3956 | unixname, unixlen, newSVpv(tryname,0),0); |
44f8325f | 3957 | } else { |
4492be7a | 3958 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3959 | if (!svp) |
4492be7a JM |
3960 | (void)hv_store(GvHVn(PL_incgv), |
3961 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3962 | } |
a0d0e21e | 3963 | |
d343c3ef | 3964 | ENTER_with_name("eval"); |
a0d0e21e | 3965 | SAVETMPS; |
b2ef6d44 FC |
3966 | SAVECOPFILE_FREE(&PL_compiling); |
3967 | CopFILE_set(&PL_compiling, tryname); | |
8eaa0acf | 3968 | lex_start(NULL, tryrsfp, 0); |
e50aee73 | 3969 | |
34113e50 | 3970 | if (filter_sub || filter_cache) { |
4464f08e NC |
3971 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
3972 | than hanging another SV from it. In turn, filter_add() optionally | |
3973 | takes the SV to use as the filter (or creates a new SV if passed | |
3974 | NULL), so simply pass in whatever value filter_cache has. */ | |
3975 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 3976 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
3977 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
3978 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
3979 | } |
3980 | ||
3981 | /* switch to eval mode */ | |
a0d0e21e | 3982 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 3983 | PUSHEVAL(cx, name); |
f39bc417 | 3984 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3985 | |
57843af0 GS |
3986 | SAVECOPLINE(&PL_compiling); |
3987 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3988 | |
3989 | PUTBACK; | |
6ec9efec JH |
3990 | |
3991 | /* Store and reset encoding. */ | |
3992 | encoding = PL_encoding; | |
c445ea15 | 3993 | PL_encoding = NULL; |
6ec9efec | 3994 | |
104a8185 | 3995 | if (doeval(gimme, NULL, PL_curcop->cop_seq, NULL)) |
410be5db DM |
3996 | op = DOCATCH(PL_eval_start); |
3997 | else | |
3998 | op = PL_op->op_next; | |
bfed75c6 | 3999 | |
6ec9efec JH |
4000 | /* Restore encoding. */ |
4001 | PL_encoding = encoding; | |
4002 | ||
32aeab29 SM |
4003 | LOADED_FILE_PROBE(unixname); |
4004 | ||
6ec9efec | 4005 | return op; |
a0d0e21e LW |
4006 | } |
4007 | ||
996c9baa VP |
4008 | /* This is a op added to hold the hints hash for |
4009 | pp_entereval. The hash can be modified by the code | |
4010 | being eval'ed, so we return a copy instead. */ | |
4011 | ||
4012 | PP(pp_hintseval) | |
4013 | { | |
4014 | dVAR; | |
4015 | dSP; | |
defdfed5 | 4016 | mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
4017 | RETURN; |
4018 | } | |
4019 | ||
4020 | ||
a0d0e21e LW |
4021 | PP(pp_entereval) |
4022 | { | |
27da23d5 | 4023 | dVAR; dSP; |
eb578fdb | 4024 | PERL_CONTEXT *cx; |
0d863452 | 4025 | SV *sv; |
890ce7af | 4026 | const I32 gimme = GIMME_V; |
fd06b02c | 4027 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 | 4028 | char tbuf[TYPE_DIGITS(long) + 12]; |
78da7625 | 4029 | bool saved_delete = FALSE; |
83ee9e09 | 4030 | char *tmpbuf = tbuf; |
a0d0e21e | 4031 | STRLEN len; |
a3985cdc | 4032 | CV* runcv; |
0abcdfa4 | 4033 | U32 seq, lex_flags = 0; |
c445ea15 | 4034 | HV *saved_hh = NULL; |
60d63348 | 4035 | const bool bytes = PL_op->op_private & OPpEVAL_BYTES; |
e389bba9 | 4036 | |
0d863452 | 4037 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 4038 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 | 4039 | } |
bc344123 FC |
4040 | else if (PL_hints & HINT_LOCALIZE_HH || ( |
4041 | PL_op->op_private & OPpEVAL_COPHH | |
4042 | && PL_curcop->cop_hints & HINT_LOCALIZE_HH | |
4043 | )) { | |
7d789282 FC |
4044 | saved_hh = cop_hints_2hv(PL_curcop, 0); |
4045 | hv_magic(saved_hh, NULL, PERL_MAGIC_hints); | |
4046 | } | |
0d863452 | 4047 | sv = POPs; |
895b760f DM |
4048 | if (!SvPOK(sv)) { |
4049 | /* make sure we've got a plain PV (no overload etc) before testing | |
4050 | * for taint. Making a copy here is probably overkill, but better | |
4051 | * safe than sorry */ | |
0479a84a NC |
4052 | STRLEN len; |
4053 | const char * const p = SvPV_const(sv, len); | |
4054 | ||
4055 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
0abcdfa4 | 4056 | lex_flags |= LEX_START_COPIED; |
7d789282 | 4057 | |
60d63348 | 4058 | if (bytes && SvUTF8(sv)) |
7d789282 FC |
4059 | SvPVbyte_force(sv, len); |
4060 | } | |
60d63348 | 4061 | else if (bytes && SvUTF8(sv)) { |
e1fa07e3 | 4062 | /* Don't modify someone else's scalar */ |
7d789282 FC |
4063 | STRLEN len; |
4064 | sv = newSVsv(sv); | |
5cefc8c1 | 4065 | (void)sv_2mortal(sv); |
7d789282 | 4066 | SvPVbyte_force(sv,len); |
0abcdfa4 | 4067 | lex_flags |= LEX_START_COPIED; |
895b760f | 4068 | } |
a0d0e21e | 4069 | |
af2d3def | 4070 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 4071 | TAINT_PROPER("eval"); |
a0d0e21e | 4072 | |
d343c3ef | 4073 | ENTER_with_name("eval"); |
0abcdfa4 | 4074 | lex_start(sv, NULL, lex_flags | (PL_op->op_private & OPpEVAL_UNICODE |
60d63348 FC |
4075 | ? LEX_IGNORE_UTF8_HINTS |
4076 | : bytes ? LEX_EVALBYTES : LEX_START_SAME_FILTER | |
0abcdfa4 | 4077 | ) |
60d63348 | 4078 | ); |
748a9306 | 4079 | SAVETMPS; |
ac27b0f5 | 4080 | |
a0d0e21e LW |
4081 | /* switch to eval mode */ |
4082 | ||
83ee9e09 | 4083 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
4084 | SV * const temp_sv = sv_newmortal(); |
4085 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
4086 | (unsigned long)++PL_evalseq, |
4087 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
4088 | tmpbuf = SvPVX(temp_sv); |
4089 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
4090 | } |
4091 | else | |
d9fad198 | 4092 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 4093 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 4094 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 4095 | SAVECOPLINE(&PL_compiling); |
57843af0 | 4096 | CopLINE_set(&PL_compiling, 1); |
d819b83a DM |
4097 | /* special case: an eval '' executed within the DB package gets lexically |
4098 | * placed in the first non-DB CV rather than the current CV - this | |
4099 | * allows the debugger to execute code, find lexicals etc, in the | |
4100 | * scope of the code being debugged. Passing &seq gets find_runcv | |
4101 | * to do the dirty work for us */ | |
4102 | runcv = find_runcv(&seq); | |
a0d0e21e | 4103 | |
6b35e009 | 4104 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 4105 | PUSHEVAL(cx, 0); |
f39bc417 | 4106 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
4107 | |
4108 | /* prepare to compile string */ | |
4109 | ||
a44e3ce2 | 4110 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 4111 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
78da7625 | 4112 | else { |
c8cb8d55 FC |
4113 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
4114 | deleting the eval's FILEGV from the stash before gv_check() runs | |
4115 | (i.e. before run-time proper). To work around the coredump that | |
4116 | ensues, we always turn GvMULTI_on for any globals that were | |
4117 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
78da7625 FC |
4118 | char *const safestr = savepvn(tmpbuf, len); |
4119 | SAVEDELETE(PL_defstash, safestr, len); | |
4120 | saved_delete = TRUE; | |
4121 | } | |
4122 | ||
a0d0e21e | 4123 | PUTBACK; |
f9bddea7 | 4124 | |
104a8185 | 4125 | if (doeval(gimme, runcv, seq, saved_hh)) { |
f9bddea7 NC |
4126 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4127 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4128 | : PERLDB_SAVESRC_NOSUBS) { | |
4129 | /* Retain the filegv we created. */ | |
78da7625 | 4130 | } else if (!saved_delete) { |
f9bddea7 NC |
4131 | char *const safestr = savepvn(tmpbuf, len); |
4132 | SAVEDELETE(PL_defstash, safestr, len); | |
4133 | } | |
4134 | return DOCATCH(PL_eval_start); | |
4135 | } else { | |
486ec47a | 4136 | /* We have already left the scope set up earlier thanks to the LEAVE |
f9bddea7 | 4137 | in doeval(). */ |
eb044b10 NC |
4138 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4139 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4140 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 | 4141 | /* Retain the filegv we created. */ |
7857f360 | 4142 | } else if (!saved_delete) { |
f9bddea7 NC |
4143 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); |
4144 | } | |
4145 | return PL_op->op_next; | |
4146 | } | |
a0d0e21e LW |
4147 | } |
4148 | ||
4149 | PP(pp_leaveeval) | |
4150 | { | |
27da23d5 | 4151 | dVAR; dSP; |
a0d0e21e LW |
4152 | SV **newsp; |
4153 | PMOP *newpm; | |
4154 | I32 gimme; | |
eb578fdb | 4155 | PERL_CONTEXT *cx; |
a0d0e21e | 4156 | OP *retop; |
06b5626a | 4157 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e | 4158 | I32 optype; |
b6494f15 | 4159 | SV *namesv; |
676a678a | 4160 | CV *evalcv; |
a0d0e21e | 4161 | |
011c3814 | 4162 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4163 | POPBLOCK(cx,newpm); |
4164 | POPEVAL(cx); | |
b6494f15 | 4165 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 4166 | retop = cx->blk_eval.retop; |
676a678a | 4167 | evalcv = cx->blk_eval.cv; |
a0d0e21e | 4168 | |
a1f49e72 | 4169 | TAINT_NOT; |
b9d76716 VP |
4170 | SP = adjust_stack_on_leave((gimme == G_VOID) ? SP : newsp, SP, newsp, |
4171 | gimme, SVs_TEMP); | |
3280af22 | 4172 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4173 | |
4fdae800 | 4174 | #ifdef DEBUGGING |
676a678a | 4175 | assert(CvDEPTH(evalcv) == 1); |
4fdae800 | 4176 | #endif |
676a678a | 4177 | CvDEPTH(evalcv) = 0; |
4fdae800 | 4178 | |
1ce6579f | 4179 | if (optype == OP_REQUIRE && |
924508f0 | 4180 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 4181 | { |
1ce6579f | 4182 | /* Unassume the success we assumed earlier. */ |
b6494f15 | 4183 | (void)hv_delete(GvHVn(PL_incgv), |
ecad31f0 | 4184 | SvPVX_const(namesv), |
c60dbbc3 | 4185 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 VP |
4186 | G_DISCARD); |
4187 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", | |
4188 | SVfARG(namesv)); | |
c5df3096 | 4189 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
4190 | } |
4191 | else { | |
d343c3ef | 4192 | LEAVE_with_name("eval"); |
8433848b | 4193 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 4194 | CLEAR_ERRSV(); |
8433848b | 4195 | } |
a0d0e21e | 4196 | } |
a0d0e21e LW |
4197 | |
4198 | RETURNOP(retop); | |
4199 | } | |
4200 | ||
edb2152a NC |
4201 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
4202 | close to the related Perl_create_eval_scope. */ | |
4203 | void | |
4204 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 4205 | { |
edb2152a NC |
4206 | SV **newsp; |
4207 | PMOP *newpm; | |
4208 | I32 gimme; | |
eb578fdb | 4209 | PERL_CONTEXT *cx; |
edb2152a NC |
4210 | I32 optype; |
4211 | ||
4212 | POPBLOCK(cx,newpm); | |
4213 | POPEVAL(cx); | |
4214 | PL_curpm = newpm; | |
d343c3ef | 4215 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
4216 | PERL_UNUSED_VAR(newsp); |
4217 | PERL_UNUSED_VAR(gimme); | |
4218 | PERL_UNUSED_VAR(optype); | |
4219 | } | |
a0d0e21e | 4220 | |
edb2152a NC |
4221 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
4222 | also needed by Perl_fold_constants. */ | |
4223 | PERL_CONTEXT * | |
4224 | Perl_create_eval_scope(pTHX_ U32 flags) | |
4225 | { | |
4226 | PERL_CONTEXT *cx; | |
4227 | const I32 gimme = GIMME_V; | |
4228 | ||
d343c3ef | 4229 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
4230 | SAVETMPS; |
4231 | ||
edb2152a | 4232 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 4233 | PUSHEVAL(cx, 0); |
a0d0e21e | 4234 | |
faef0170 | 4235 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
4236 | if (flags & G_KEEPERR) |
4237 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
4238 | else |
4239 | CLEAR_ERRSV(); | |
edb2152a NC |
4240 | if (flags & G_FAKINGEVAL) { |
4241 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
4242 | } | |
4243 | return cx; | |
4244 | } | |
4245 | ||
4246 | PP(pp_entertry) | |
4247 | { | |
4248 | dVAR; | |
df528165 | 4249 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4250 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4251 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4252 | } |
4253 | ||
4254 | PP(pp_leavetry) | |
4255 | { | |
27da23d5 | 4256 | dVAR; dSP; |
a0d0e21e LW |
4257 | SV **newsp; |
4258 | PMOP *newpm; | |
4259 | I32 gimme; | |
eb578fdb | 4260 | PERL_CONTEXT *cx; |
a0d0e21e LW |
4261 | I32 optype; |
4262 | ||
011c3814 | 4263 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4264 | POPBLOCK(cx,newpm); |
4265 | POPEVAL(cx); | |
9d4ba2ae | 4266 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4267 | |
a1f49e72 | 4268 | TAINT_NOT; |
b9d76716 | 4269 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
3280af22 | 4270 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4271 | |
d343c3ef | 4272 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4273 | CLEAR_ERRSV(); |
745cf2ff | 4274 | RETURN; |
a0d0e21e LW |
4275 | } |
4276 | ||
0d863452 RH |
4277 | PP(pp_entergiven) |
4278 | { | |
4279 | dVAR; dSP; | |
eb578fdb | 4280 | PERL_CONTEXT *cx; |
0d863452 RH |
4281 | const I32 gimme = GIMME_V; |
4282 | ||
d343c3ef | 4283 | ENTER_with_name("given"); |
0d863452 RH |
4284 | SAVETMPS; |
4285 | ||
b5a64814 FC |
4286 | if (PL_op->op_targ) { |
4287 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); | |
4288 | SvREFCNT_dec(PAD_SVl(PL_op->op_targ)); | |
4289 | PAD_SVl(PL_op->op_targ) = SvREFCNT_inc_NN(POPs); | |
4290 | } | |
4291 | else { | |
4292 | SAVE_DEFSV; | |
4293 | DEFSV_set(POPs); | |
4294 | } | |
0d863452 RH |
4295 | |
4296 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4297 | PUSHGIVEN(cx); | |
4298 | ||
4299 | RETURN; | |
4300 | } | |
4301 | ||
4302 | PP(pp_leavegiven) | |
4303 | { | |
4304 | dVAR; dSP; | |
eb578fdb | 4305 | PERL_CONTEXT *cx; |
0d863452 RH |
4306 | I32 gimme; |
4307 | SV **newsp; | |
4308 | PMOP *newpm; | |
96a5add6 | 4309 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4310 | |
4311 | POPBLOCK(cx,newpm); | |
4312 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4313 | |
25b991bf | 4314 | TAINT_NOT; |
b9d76716 | 4315 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
25b991bf | 4316 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
0d863452 | 4317 | |
d343c3ef | 4318 | LEAVE_with_name("given"); |
25b991bf | 4319 | RETURN; |
0d863452 RH |
4320 | } |
4321 | ||
4322 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4323 | STATIC PMOP * |
84679df5 | 4324 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 4325 | { |
97aff369 | 4326 | dVAR; |
0d863452 | 4327 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
4328 | |
4329 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4330 | ||
d6106309 | 4331 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4332 | |
0d863452 | 4333 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4334 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4335 | SAVEOP(); |
4336 | return matcher; | |
4337 | } | |
4338 | ||
4136a0f7 | 4339 | STATIC bool |
0d863452 RH |
4340 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4341 | { | |
97aff369 | 4342 | dVAR; |
0d863452 | 4343 | dSP; |
7918f24d NC |
4344 | |
4345 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4346 | |
4347 | PL_op = (OP *) matcher; | |
4348 | XPUSHs(sv); | |
4349 | PUTBACK; | |
897d3989 | 4350 | (void) Perl_pp_match(aTHX); |
0d863452 RH |
4351 | SPAGAIN; |
4352 | return (SvTRUEx(POPs)); | |
4353 | } | |
4354 | ||
4136a0f7 | 4355 | STATIC void |
0d863452 RH |
4356 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4357 | { | |
97aff369 | 4358 | dVAR; |
7918f24d NC |
4359 | |
4360 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4361 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4362 | |
0d863452 | 4363 | FREETMPS; |
d343c3ef | 4364 | LEAVE_with_name("matcher"); |
0d863452 RH |
4365 | } |
4366 | ||
4367 | /* Do a smart match */ | |
4368 | PP(pp_smartmatch) | |
4369 | { | |
d7c0d282 | 4370 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
be88a5c3 | 4371 | return do_smartmatch(NULL, NULL, 0); |
0d863452 RH |
4372 | } |
4373 | ||
4b021f5f RGS |
4374 | /* This version of do_smartmatch() implements the |
4375 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4376 | */ |
4136a0f7 | 4377 | STATIC OP * |
be88a5c3 | 4378 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other, const bool copied) |
0d863452 | 4379 | { |
97aff369 | 4380 | dVAR; |
0d863452 RH |
4381 | dSP; |
4382 | ||
41e726ac | 4383 | bool object_on_left = FALSE; |
0d863452 RH |
4384 | SV *e = TOPs; /* e is for 'expression' */ |
4385 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4386 | |
6f1401dc DM |
4387 | /* Take care only to invoke mg_get() once for each argument. |
4388 | * Currently we do this by copying the SV if it's magical. */ | |
4389 | if (d) { | |
be88a5c3 | 4390 | if (!copied && SvGMAGICAL(d)) |
6f1401dc DM |
4391 | d = sv_mortalcopy(d); |
4392 | } | |
4393 | else | |
4394 | d = &PL_sv_undef; | |
4395 | ||
4396 | assert(e); | |
4397 | if (SvGMAGICAL(e)) | |
4398 | e = sv_mortalcopy(e); | |
4399 | ||
2c9d2554 | 4400 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4401 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4402 | SV * tmpsv; |
4403 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4404 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4405 | ||
b900a653 | 4406 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noleft); |
7c41e62e RGS |
4407 | if (tmpsv) { |
4408 | SPAGAIN; | |
4409 | (void)POPs; | |
4410 | SETs(tmpsv); | |
4411 | RETURN; | |
4412 | } | |
d7c0d282 | 4413 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4414 | } |
62ec5f58 | 4415 | |
0d863452 RH |
4416 | SP -= 2; /* Pop the values */ |
4417 | ||
0d863452 | 4418 | |
b0138e99 | 4419 | /* ~~ undef */ |
62ec5f58 | 4420 | if (!SvOK(e)) { |
d7c0d282 | 4421 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4422 | if (SvOK(d)) |
33570f8b RGS |
4423 | RETPUSHNO; |
4424 | else | |
62ec5f58 | 4425 | RETPUSHYES; |
33570f8b | 4426 | } |
e67b97bd | 4427 | |
d7c0d282 DM |
4428 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4429 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4430 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4431 | } |
41e726ac RGS |
4432 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4433 | object_on_left = TRUE; | |
62ec5f58 | 4434 | |
b0138e99 | 4435 | /* ~~ sub */ |
a4a197da | 4436 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4437 | I32 c; |
41e726ac RGS |
4438 | if (object_on_left) { |
4439 | goto sm_any_sub; /* Treat objects like scalars */ | |
4440 | } | |
4441 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4442 | /* Test sub truth for each key */ |
4443 | HE *he; | |
4444 | bool andedresults = TRUE; | |
4445 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4446 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4447 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4448 | if (numkeys == 0) |
07edf497 | 4449 | RETPUSHYES; |
a4a197da | 4450 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4451 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4452 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4453 | SAVETMPS; |
4454 | PUSHMARK(SP); | |
4455 | PUSHs(hv_iterkeysv(he)); | |
4456 | PUTBACK; | |
4457 | c = call_sv(e, G_SCALAR); | |
4458 | SPAGAIN; | |
4459 | if (c == 0) | |
4460 | andedresults = FALSE; | |
4461 | else | |
4462 | andedresults = SvTRUEx(POPs) && andedresults; | |
4463 | FREETMPS; | |
d343c3ef | 4464 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4465 | } |
4466 | if (andedresults) | |
4467 | RETPUSHYES; | |
4468 | else | |
4469 | RETPUSHNO; | |
4470 | } | |
4471 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4472 | /* Test sub truth for each element */ | |
4473 | I32 i; | |
4474 | bool andedresults = TRUE; | |
4475 | AV *av = (AV*) SvRV(d); | |
4476 | const I32 len = av_len(av); | |
d7c0d282 | 4477 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4478 | if (len == -1) |
07edf497 | 4479 | RETPUSHYES; |
a4a197da RGS |
4480 | for (i = 0; i <= len; ++i) { |
4481 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4482 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4483 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4484 | SAVETMPS; |
4485 | PUSHMARK(SP); | |
4486 | if (svp) | |
4487 | PUSHs(*svp); | |
4488 | PUTBACK; | |
4489 | c = call_sv(e, G_SCALAR); | |
4490 | SPAGAIN; | |
4491 | if (c == 0) | |
4492 | andedresults = FALSE; | |
4493 | else | |
4494 | andedresults = SvTRUEx(POPs) && andedresults; | |
4495 | FREETMPS; | |
d343c3ef | 4496 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4497 | } |
4498 | if (andedresults) | |
4499 | RETPUSHYES; | |
4500 | else | |
4501 | RETPUSHNO; | |
4502 | } | |
4503 | else { | |
41e726ac | 4504 | sm_any_sub: |
d7c0d282 | 4505 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4506 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4507 | SAVETMPS; |
4508 | PUSHMARK(SP); | |
4509 | PUSHs(d); | |
4510 | PUTBACK; | |
4511 | c = call_sv(e, G_SCALAR); | |
4512 | SPAGAIN; | |
4513 | if (c == 0) | |
4514 | PUSHs(&PL_sv_no); | |
4515 | else if (SvTEMP(TOPs)) | |
4516 | SvREFCNT_inc_void(TOPs); | |
4517 | FREETMPS; | |
d343c3ef | 4518 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4519 | RETURN; |
4520 | } | |
0d863452 | 4521 | } |
b0138e99 | 4522 | /* ~~ %hash */ |
61a621c6 | 4523 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4524 | if (object_on_left) { |
4525 | goto sm_any_hash; /* Treat objects like scalars */ | |
4526 | } | |
4527 | else if (!SvOK(d)) { | |
d7c0d282 | 4528 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4529 | RETPUSHNO; |
4530 | } | |
4531 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4532 | /* Check that the key-sets are identical */ |
4533 | HE *he; | |
61a621c6 | 4534 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4535 | bool tied = FALSE; |
4536 | bool other_tied = FALSE; | |
4537 | U32 this_key_count = 0, | |
4538 | other_key_count = 0; | |
33ed63a2 | 4539 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4540 | |
4541 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4542 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4543 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4544 | tied = TRUE; |
4545 | } | |
ad64d0ec | 4546 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4547 | HV * const temp = other_hv; |
33ed63a2 RGS |
4548 | other_hv = hv; |
4549 | hv = temp; | |
0d863452 RH |
4550 | tied = TRUE; |
4551 | } | |
ad64d0ec | 4552 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4553 | other_tied = TRUE; |
4554 | ||
33ed63a2 | 4555 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4556 | RETPUSHNO; |
4557 | ||
4558 | /* The hashes have the same number of keys, so it suffices | |
4559 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4560 | (void) hv_iterinit(hv); |
4561 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4562 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4563 | |
4564 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4565 | ++ this_key_count; |
4566 | ||
b15feb55 | 4567 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4568 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4569 | RETPUSHNO; |
4570 | } | |
4571 | } | |
4572 | ||
4573 | if (other_tied) { | |
4574 | (void) hv_iterinit(other_hv); | |
4575 | while ( hv_iternext(other_hv) ) | |
4576 | ++other_key_count; | |
4577 | } | |
4578 | else | |
4579 | other_key_count = HvUSEDKEYS(other_hv); | |
4580 | ||
4581 | if (this_key_count != other_key_count) | |
4582 | RETPUSHNO; | |
4583 | else | |
4584 | RETPUSHYES; | |
4585 | } | |
61a621c6 RGS |
4586 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4587 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4588 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4589 | I32 i; |
33ed63a2 | 4590 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4591 | |
d7c0d282 | 4592 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4593 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4594 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4595 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4596 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4597 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4598 | RETPUSHYES; |
4599 | } | |
0d863452 | 4600 | } |
71b0fb34 | 4601 | RETPUSHNO; |
0d863452 | 4602 | } |
a566f585 | 4603 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4604 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4605 | sm_regex_hash: |
4606 | { | |
4607 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4608 | HE *he; | |
4609 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4610 | ||
4611 | (void) hv_iterinit(hv); | |
4612 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4613 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4614 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4615 | (void) hv_iterinit(hv); | |
4616 | destroy_matcher(matcher); | |
4617 | RETPUSHYES; | |
4618 | } | |
0d863452 | 4619 | } |
ea0c2dbd RGS |
4620 | destroy_matcher(matcher); |
4621 | RETPUSHNO; | |
0d863452 | 4622 | } |
0d863452 RH |
4623 | } |
4624 | else { | |
41e726ac | 4625 | sm_any_hash: |
d7c0d282 | 4626 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4627 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4628 | RETPUSHYES; |
4629 | else | |
4630 | RETPUSHNO; | |
4631 | } | |
4632 | } | |
b0138e99 RGS |
4633 | /* ~~ @array */ |
4634 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4635 | if (object_on_left) { |
4636 | goto sm_any_array; /* Treat objects like scalars */ | |
4637 | } | |
4638 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4639 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4640 | const I32 other_len = av_len(other_av) + 1; | |
4641 | I32 i; | |
4642 | ||
d7c0d282 | 4643 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4644 | for (i = 0; i < other_len; ++i) { |
4645 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4646 | |
4647 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4648 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4649 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4650 | RETPUSHYES; |
4651 | } | |
4652 | } | |
4653 | RETPUSHNO; | |
4654 | } | |
4655 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4656 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4657 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4658 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4659 | RETPUSHNO; |
4660 | else { | |
4661 | I32 i; | |
c445ea15 | 4662 | const I32 other_len = av_len(other_av); |
0d863452 | 4663 | |
a0714e2c | 4664 | if (NULL == seen_this) { |
0d863452 | 4665 | seen_this = newHV(); |
ad64d0ec | 4666 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4667 | } |
a0714e2c | 4668 | if (NULL == seen_other) { |
6bc991bf | 4669 | seen_other = newHV(); |
ad64d0ec | 4670 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4671 | } |
4672 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4673 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4674 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4675 | ||
0d863452 | 4676 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4677 | if ((this_elem && SvOK(*this_elem)) |
4678 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4679 | RETPUSHNO; |
4680 | } | |
365c4e3d RGS |
4681 | else if (hv_exists_ent(seen_this, |
4682 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4683 | hv_exists_ent(seen_other, | |
4684 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4685 | { |
4686 | if (*this_elem != *other_elem) | |
4687 | RETPUSHNO; | |
4688 | } | |
4689 | else { | |
04fe65b0 RGS |
4690 | (void)hv_store_ent(seen_this, |
4691 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4692 | &PL_sv_undef, 0); | |
4693 | (void)hv_store_ent(seen_other, | |
4694 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4695 | &PL_sv_undef, 0); | |
0d863452 | 4696 | PUSHs(*other_elem); |
a566f585 | 4697 | PUSHs(*this_elem); |
0d863452 RH |
4698 | |
4699 | PUTBACK; | |
d7c0d282 | 4700 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
be88a5c3 | 4701 | (void) do_smartmatch(seen_this, seen_other, 0); |
0d863452 | 4702 | SPAGAIN; |
d7c0d282 | 4703 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4704 | |
4705 | if (!SvTRUEx(POPs)) | |
4706 | RETPUSHNO; | |
4707 | } | |
4708 | } | |
4709 | RETPUSHYES; | |
4710 | } | |
4711 | } | |
a566f585 | 4712 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4713 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4714 | sm_regex_array: |
4715 | { | |
4716 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4717 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4718 | I32 i; | |
0d863452 | 4719 | |
ea0c2dbd RGS |
4720 | for(i = 0; i <= this_len; ++i) { |
4721 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4722 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4723 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4724 | destroy_matcher(matcher); | |
4725 | RETPUSHYES; | |
4726 | } | |
0d863452 | 4727 | } |
ea0c2dbd RGS |
4728 | destroy_matcher(matcher); |
4729 | RETPUSHNO; | |
0d863452 | 4730 | } |
0d863452 | 4731 | } |
015eb7b9 RGS |
4732 | else if (!SvOK(d)) { |
4733 | /* undef ~~ array */ | |
4734 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4735 | I32 i; |
4736 | ||
d7c0d282 | 4737 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4738 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4739 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4740 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4741 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4742 | RETPUSHYES; |
4743 | } | |
4744 | RETPUSHNO; | |
4745 | } | |
015eb7b9 | 4746 | else { |
41e726ac RGS |
4747 | sm_any_array: |
4748 | { | |
4749 | I32 i; | |
4750 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4751 | |
d7c0d282 | 4752 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4753 | for (i = 0; i <= this_len; ++i) { |
4754 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4755 | if (!svp) | |
4756 | continue; | |
015eb7b9 | 4757 | |
41e726ac RGS |
4758 | PUSHs(d); |
4759 | PUSHs(*svp); | |
4760 | PUTBACK; | |
4761 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4762 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
be88a5c3 | 4763 | (void) do_smartmatch(NULL, NULL, 1); |
41e726ac | 4764 | SPAGAIN; |
d7c0d282 | 4765 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4766 | if (SvTRUEx(POPs)) |
4767 | RETPUSHYES; | |
4768 | } | |
4769 | RETPUSHNO; | |
0d863452 | 4770 | } |
0d863452 RH |
4771 | } |
4772 | } | |
b0138e99 | 4773 | /* ~~ qr// */ |
a566f585 | 4774 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4775 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4776 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4777 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4778 | goto sm_regex_hash; |
4779 | } | |
4780 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4781 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4782 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4783 | goto sm_regex_array; |
4784 | } | |
4785 | else { | |
4786 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4787 | |
d7c0d282 | 4788 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4789 | PUTBACK; |
4790 | PUSHs(matcher_matches_sv(matcher, d) | |
4791 | ? &PL_sv_yes | |
4792 | : &PL_sv_no); | |
4793 | destroy_matcher(matcher); | |
4794 | RETURN; | |
4795 | } | |
0d863452 | 4796 | } |
b0138e99 | 4797 | /* ~~ scalar */ |
2c9d2554 RGS |
4798 | /* See if there is overload magic on left */ |
4799 | else if (object_on_left && SvAMAGIC(d)) { | |
4800 | SV *tmpsv; | |
d7c0d282 DM |
4801 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4802 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4803 | PUSHs(d); PUSHs(e); |
4804 | PUTBACK; | |
4805 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4806 | if (tmpsv) { | |
4807 | SPAGAIN; | |
4808 | (void)POPs; | |
4809 | SETs(tmpsv); | |
4810 | RETURN; | |
4811 | } | |
4812 | SP -= 2; | |
d7c0d282 | 4813 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4814 | goto sm_any_scalar; |
4815 | } | |
fb51372e RGS |
4816 | else if (!SvOK(d)) { |
4817 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4818 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4819 | RETPUSHNO; |
4820 | } | |
2c9d2554 RGS |
4821 | else |
4822 | sm_any_scalar: | |
4823 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4824 | DEBUG_M(if (SvNIOK(e)) |
4825 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4826 | else | |
4827 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4828 | ); | |
33ed63a2 | 4829 | /* numeric comparison */ |
0d863452 RH |
4830 | PUSHs(d); PUSHs(e); |
4831 | PUTBACK; | |
a98fe34d | 4832 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
897d3989 | 4833 | (void) Perl_pp_i_eq(aTHX); |
0d863452 | 4834 | else |
897d3989 | 4835 | (void) Perl_pp_eq(aTHX); |
0d863452 RH |
4836 | SPAGAIN; |
4837 | if (SvTRUEx(POPs)) | |
4838 | RETPUSHYES; | |
4839 | else | |
4840 | RETPUSHNO; | |
4841 | } | |
4842 | ||
4843 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4844 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4845 | PUSHs(d); PUSHs(e); |
4846 | PUTBACK; | |
897d3989 | 4847 | return Perl_pp_seq(aTHX); |
0d863452 RH |
4848 | } |
4849 | ||
4850 | PP(pp_enterwhen) | |
4851 | { | |
4852 | dVAR; dSP; | |
eb578fdb | 4853 | PERL_CONTEXT *cx; |
0d863452 RH |
4854 | const I32 gimme = GIMME_V; |
4855 | ||
4856 | /* This is essentially an optimization: if the match | |
4857 | fails, we don't want to push a context and then | |
4858 | pop it again right away, so we skip straight | |
4859 | to the op that follows the leavewhen. | |
25b991bf | 4860 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4861 | */ |
4862 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4863 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4864 | |
c08f093b | 4865 | ENTER_with_name("when"); |
0d863452 RH |
4866 | SAVETMPS; |
4867 | ||
4868 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4869 | PUSHWHEN(cx); | |
4870 | ||
4871 | RETURN; | |
4872 | } | |
4873 | ||
4874 | PP(pp_leavewhen) | |
4875 | { | |
4876 | dVAR; dSP; | |
c08f093b | 4877 | I32 cxix; |
eb578fdb | 4878 | PERL_CONTEXT *cx; |
c08f093b | 4879 | I32 gimme; |
0d863452 RH |
4880 | SV **newsp; |
4881 | PMOP *newpm; | |
4882 | ||
c08f093b VP |
4883 | cxix = dopoptogiven(cxstack_ix); |
4884 | if (cxix < 0) | |
fc7debfb FC |
4885 | /* diag_listed_as: Can't "when" outside a topicalizer */ |
4886 | DIE(aTHX_ "Can't \"%s\" outside a topicalizer", | |
4887 | PL_op->op_flags & OPf_SPECIAL ? "default" : "when"); | |
c08f093b | 4888 | |
0d863452 RH |
4889 | POPBLOCK(cx,newpm); |
4890 | assert(CxTYPE(cx) == CXt_WHEN); | |
4891 | ||
c08f093b VP |
4892 | TAINT_NOT; |
4893 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); | |
0d863452 RH |
4894 | PL_curpm = newpm; /* pop $1 et al */ |
4895 | ||
c08f093b VP |
4896 | LEAVE_with_name("when"); |
4897 | ||
4898 | if (cxix < cxstack_ix) | |
4899 | dounwind(cxix); | |
4900 | ||
4901 | cx = &cxstack[cxix]; | |
4902 | ||
4903 | if (CxFOREACH(cx)) { | |
4904 | /* clear off anything above the scope we're re-entering */ | |
4905 | I32 inner = PL_scopestack_ix; | |
4906 | ||
4907 | TOPBLOCK(cx); | |
4908 | if (PL_scopestack_ix < inner) | |
4909 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4910 | PL_curcop = cx->blk_oldcop; | |
4911 | ||
4912 | return cx->blk_loop.my_op->op_nextop; | |
4913 | } | |
4914 | else | |
b1b5a4ae | 4915 | RETURNOP(cx->blk_givwhen.leave_op); |
0d863452 RH |
4916 | } |
4917 | ||
4918 | PP(pp_continue) | |
4919 | { | |
c08f093b | 4920 | dVAR; dSP; |
0d863452 | 4921 | I32 cxix; |
eb578fdb | 4922 | PERL_CONTEXT *cx; |
c08f093b VP |
4923 | I32 gimme; |
4924 | SV **newsp; | |
4925 | PMOP *newpm; | |
7be5bd17 FR |
4926 | |
4927 | PERL_UNUSED_VAR(gimme); | |
0d863452 RH |
4928 | |
4929 | cxix = dopoptowhen(cxstack_ix); | |
4930 | if (cxix < 0) | |
4931 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
c08f093b | 4932 | |
0d863452 RH |
4933 | if (cxix < cxstack_ix) |
4934 | dounwind(cxix); | |
4935 | ||
c08f093b VP |
4936 | POPBLOCK(cx,newpm); |
4937 | assert(CxTYPE(cx) == CXt_WHEN); | |
4938 | ||
4939 | SP = newsp; | |
4940 | PL_curpm = newpm; /* pop $1 et al */ | |
4941 | ||
4942 | LEAVE_with_name("when"); | |
4943 | RETURNOP(cx->blk_givwhen.leave_op->op_next); | |
0d863452 RH |
4944 | } |
4945 | ||
4946 | PP(pp_break) | |
4947 | { | |
4948 | dVAR; | |
4949 | I32 cxix; | |
eb578fdb | 4950 | PERL_CONTEXT *cx; |
25b991bf | 4951 | |
0d863452 | 4952 | cxix = dopoptogiven(cxstack_ix); |
c08f093b VP |
4953 | if (cxix < 0) |
4954 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4955 | ||
4956 | cx = &cxstack[cxix]; | |
4957 | if (CxFOREACH(cx)) | |
0d863452 RH |
4958 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); |
4959 | ||
4960 | if (cxix < cxstack_ix) | |
4961 | dounwind(cxix); | |
0d863452 | 4962 | |
0787ea8a VP |
4963 | /* Restore the sp at the time we entered the given block */ |
4964 | TOPBLOCK(cx); | |
4965 | ||
c08f093b | 4966 | return cx->blk_givwhen.leave_op; |
0d863452 RH |
4967 | } |
4968 | ||
74e0ddf7 | 4969 | static MAGIC * |
cea2e8a9 | 4970 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4971 | { |
4972 | STRLEN len; | |
eb578fdb KW |
4973 | char *s = SvPV(sv, len); |
4974 | char *send; | |
4975 | char *base = NULL; /* start of current field */ | |
4976 | I32 skipspaces = 0; /* number of contiguous spaces seen */ | |
086b26f3 DM |
4977 | bool noblank = FALSE; /* ~ or ~~ seen on this line */ |
4978 | bool repeat = FALSE; /* ~~ seen on this line */ | |
4979 | bool postspace = FALSE; /* a text field may need right padding */ | |
dea28490 | 4980 | U32 *fops; |
eb578fdb | 4981 | U32 *fpc; |
086b26f3 | 4982 | U32 *linepc = NULL; /* position of last FF_LINEMARK */ |
eb578fdb | 4983 | I32 arg; |
086b26f3 DM |
4984 | bool ischop; /* it's a ^ rather than a @ */ |
4985 | bool unchopnum = FALSE; /* at least one @ (i.e. non-chop) num field seen */ | |
a1b95068 | 4986 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ |
3808a683 DM |
4987 | MAGIC *mg = NULL; |
4988 | SV *sv_copy; | |
a0d0e21e | 4989 | |
7918f24d NC |
4990 | PERL_ARGS_ASSERT_DOPARSEFORM; |
4991 | ||
55497cff | 4992 | if (len == 0) |
cea2e8a9 | 4993 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4994 | |
3808a683 DM |
4995 | if (SvTYPE(sv) >= SVt_PVMG) { |
4996 | /* This might, of course, still return NULL. */ | |
4997 | mg = mg_find(sv, PERL_MAGIC_fm); | |
4998 | } else { | |
4999 | sv_upgrade(sv, SVt_PVMG); | |
5000 | } | |
5001 | ||
5002 | if (mg) { | |
5003 | /* still the same as previously-compiled string? */ | |
5004 | SV *old = mg->mg_obj; | |
5005 | if ( !(!!SvUTF8(old) ^ !!SvUTF8(sv)) | |
5006 | && len == SvCUR(old) | |
5007 | && strnEQ(SvPVX(old), SvPVX(sv), len) | |
b57b1734 DM |
5008 | ) { |
5009 | DEBUG_f(PerlIO_printf(Perl_debug_log,"Re-using compiled format\n")); | |
3808a683 | 5010 | return mg; |
b57b1734 | 5011 | } |
3808a683 | 5012 | |
b57b1734 | 5013 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Re-compiling format\n")); |
3808a683 DM |
5014 | Safefree(mg->mg_ptr); |
5015 | mg->mg_ptr = NULL; | |
5016 | SvREFCNT_dec(old); | |
5017 | mg->mg_obj = NULL; | |
5018 | } | |
b57b1734 DM |
5019 | else { |
5020 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Compiling format\n")); | |
3808a683 | 5021 | mg = sv_magicext(sv, NULL, PERL_MAGIC_fm, &PL_vtbl_fm, NULL, 0); |
b57b1734 | 5022 | } |
3808a683 DM |
5023 | |
5024 | sv_copy = newSVpvn_utf8(s, len, SvUTF8(sv)); | |
5025 | s = SvPV(sv_copy, len); /* work on the copy, not the original */ | |
5026 | send = s + len; | |
5027 | ||
5028 | ||
815f25c6 DM |
5029 | /* estimate the buffer size needed */ |
5030 | for (base = s; s <= send; s++) { | |
a1b95068 | 5031 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
5032 | maxops += 10; |
5033 | } | |
5034 | s = base; | |
c445ea15 | 5035 | base = NULL; |
815f25c6 | 5036 | |
a02a5408 | 5037 | Newx(fops, maxops, U32); |
a0d0e21e LW |
5038 | fpc = fops; |
5039 | ||
5040 | if (s < send) { | |
5041 | linepc = fpc; | |
5042 | *fpc++ = FF_LINEMARK; | |
5043 | noblank = repeat = FALSE; | |
5044 | base = s; | |
5045 | } | |
5046 | ||
5047 | while (s <= send) { | |
5048 | switch (*s++) { | |
5049 | default: | |
5050 | skipspaces = 0; | |
5051 | continue; | |
5052 | ||
5053 | case '~': | |
5054 | if (*s == '~') { | |
5055 | repeat = TRUE; | |
b57b1734 DM |
5056 | skipspaces++; |
5057 | s++; | |
a0d0e21e LW |
5058 | } |
5059 | noblank = TRUE; | |
a0d0e21e LW |
5060 | /* FALL THROUGH */ |
5061 | case ' ': case '\t': | |
5062 | skipspaces++; | |
5063 | continue; | |
a1b95068 WL |
5064 | case 0: |
5065 | if (s < send) { | |
5066 | skipspaces = 0; | |
5067 | continue; | |
5068 | } /* else FALL THROUGH */ | |
5069 | case '\n': | |
a0d0e21e LW |
5070 | arg = s - base; |
5071 | skipspaces++; | |
5072 | arg -= skipspaces; | |
5073 | if (arg) { | |
5f05dabc | 5074 | if (postspace) |
a0d0e21e | 5075 | *fpc++ = FF_SPACE; |
a0d0e21e | 5076 | *fpc++ = FF_LITERAL; |
76912796 | 5077 | *fpc++ = (U32)arg; |
a0d0e21e | 5078 | } |
5f05dabc | 5079 | postspace = FALSE; |
a0d0e21e LW |
5080 | if (s <= send) |
5081 | skipspaces--; | |
5082 | if (skipspaces) { | |
5083 | *fpc++ = FF_SKIP; | |
76912796 | 5084 | *fpc++ = (U32)skipspaces; |
a0d0e21e LW |
5085 | } |
5086 | skipspaces = 0; | |
5087 | if (s <= send) | |
5088 | *fpc++ = FF_NEWLINE; | |
5089 | if (noblank) { | |
5090 | *fpc++ = FF_BLANK; | |
5091 | if (repeat) | |
5092 | arg = fpc - linepc + 1; | |
5093 | else | |
5094 | arg = 0; | |
76912796 | 5095 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5096 | } |
5097 | if (s < send) { | |
5098 | linepc = fpc; | |
5099 | *fpc++ = FF_LINEMARK; | |
5100 | noblank = repeat = FALSE; | |
5101 | base = s; | |
5102 | } | |
5103 | else | |
5104 | s++; | |
5105 | continue; | |
5106 | ||
5107 | case '@': | |
5108 | case '^': | |
5109 | ischop = s[-1] == '^'; | |
5110 | ||
5111 | if (postspace) { | |
5112 | *fpc++ = FF_SPACE; | |
5113 | postspace = FALSE; | |
5114 | } | |
5115 | arg = (s - base) - 1; | |
5116 | if (arg) { | |
5117 | *fpc++ = FF_LITERAL; | |
76912796 | 5118 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5119 | } |
5120 | ||
5121 | base = s - 1; | |
5122 | *fpc++ = FF_FETCH; | |
086b26f3 | 5123 | if (*s == '*') { /* @* or ^* */ |
a0d0e21e | 5124 | s++; |
a1b95068 WL |
5125 | *fpc++ = 2; /* skip the @* or ^* */ |
5126 | if (ischop) { | |
5127 | *fpc++ = FF_LINESNGL; | |
5128 | *fpc++ = FF_CHOP; | |
5129 | } else | |
5130 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e | 5131 | } |
086b26f3 | 5132 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { /* @###, ^### */ |
a701009a | 5133 | arg = ischop ? FORM_NUM_BLANK : 0; |
a0d0e21e LW |
5134 | base = s - 1; |
5135 | while (*s == '#') | |
5136 | s++; | |
5137 | if (*s == '.') { | |
06b5626a | 5138 | const char * const f = ++s; |
a0d0e21e LW |
5139 | while (*s == '#') |
5140 | s++; | |
a701009a | 5141 | arg |= FORM_NUM_POINT + (s - f); |
a0d0e21e LW |
5142 | } |
5143 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5144 | *fpc++ = FF_DECIMAL; | |
76912796 | 5145 | *fpc++ = (U32)arg; |
a1b95068 | 5146 | unchopnum |= ! ischop; |
784707d5 JP |
5147 | } |
5148 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
a701009a | 5149 | arg = ischop ? FORM_NUM_BLANK : 0; |
784707d5 JP |
5150 | base = s - 1; |
5151 | s++; /* skip the '0' first */ | |
5152 | while (*s == '#') | |
5153 | s++; | |
5154 | if (*s == '.') { | |
06b5626a | 5155 | const char * const f = ++s; |
784707d5 JP |
5156 | while (*s == '#') |
5157 | s++; | |
a701009a | 5158 | arg |= FORM_NUM_POINT + (s - f); |
784707d5 JP |
5159 | } |
5160 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5161 | *fpc++ = FF_0DECIMAL; | |
76912796 | 5162 | *fpc++ = (U32)arg; |
a1b95068 | 5163 | unchopnum |= ! ischop; |
a0d0e21e | 5164 | } |
086b26f3 | 5165 | else { /* text field */ |
a0d0e21e LW |
5166 | I32 prespace = 0; |
5167 | bool ismore = FALSE; | |
5168 | ||
5169 | if (*s == '>') { | |
5170 | while (*++s == '>') ; | |
5171 | prespace = FF_SPACE; | |
5172 | } | |
5173 | else if (*s == '|') { | |
5174 | while (*++s == '|') ; | |
5175 | prespace = FF_HALFSPACE; | |
5176 | postspace = TRUE; | |
5177 | } | |
5178 | else { | |
5179 | if (*s == '<') | |
5180 | while (*++s == '<') ; | |
5181 | postspace = TRUE; | |
5182 | } | |
5183 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
5184 | s += 3; | |
5185 | ismore = TRUE; | |
5186 | } | |
5187 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5188 | ||
5189 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
5190 | ||
5191 | if (prespace) | |
76912796 | 5192 | *fpc++ = (U32)prespace; /* add SPACE or HALFSPACE */ |
a0d0e21e LW |
5193 | *fpc++ = FF_ITEM; |
5194 | if (ismore) | |
5195 | *fpc++ = FF_MORE; | |
5196 | if (ischop) | |
5197 | *fpc++ = FF_CHOP; | |
5198 | } | |
5199 | base = s; | |
5200 | skipspaces = 0; | |
5201 | continue; | |
5202 | } | |
5203 | } | |
5204 | *fpc++ = FF_END; | |
5205 | ||
815f25c6 | 5206 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e | 5207 | arg = fpc - fops; |
74e0ddf7 | 5208 | |
3808a683 | 5209 | mg->mg_ptr = (char *) fops; |
74e0ddf7 | 5210 | mg->mg_len = arg * sizeof(U32); |
3808a683 DM |
5211 | mg->mg_obj = sv_copy; |
5212 | mg->mg_flags |= MGf_REFCOUNTED; | |
a1b95068 | 5213 | |
bfed75c6 | 5214 | if (unchopnum && repeat) |
75f63940 | 5215 | Perl_die(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
74e0ddf7 NC |
5216 | |
5217 | return mg; | |
a1b95068 WL |
5218 | } |
5219 | ||
5220 | ||
5221 | STATIC bool | |
5222 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
5223 | { | |
5224 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
5225 | NV pwr = 1; | |
5226 | NV eps = 0.5; | |
5227 | bool res = FALSE; | |
5228 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
5229 | ||
a701009a | 5230 | if (frcsize & FORM_NUM_POINT) |
a1b95068 | 5231 | intsize--; |
a701009a | 5232 | frcsize &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
a1b95068 WL |
5233 | intsize -= frcsize; |
5234 | ||
5235 | while (intsize--) pwr *= 10.0; | |
5236 | while (frcsize--) eps /= 10.0; | |
5237 | ||
5238 | if( value >= 0 ){ | |
5239 | if (value + eps >= pwr) | |
5240 | res = TRUE; | |
5241 | } else { | |
5242 | if (value - eps <= -pwr) | |
5243 | res = TRUE; | |
5244 | } | |
5245 | return res; | |
a0d0e21e | 5246 | } |
4e35701f | 5247 | |
bbed91b5 | 5248 | static I32 |
0bd48802 | 5249 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 5250 | { |
27da23d5 | 5251 | dVAR; |
0bd48802 | 5252 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 5253 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
5254 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
5255 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5256 | int status = 0; |
ec0b63d7 | 5257 | SV *upstream; |
941a98a0 | 5258 | STRLEN got_len; |
162177c1 Z |
5259 | char *got_p = NULL; |
5260 | char *prune_from = NULL; | |
34113e50 | 5261 | bool read_from_cache = FALSE; |
bb7a0f54 | 5262 | STRLEN umaxlen; |
d60d2019 | 5263 | SV *err = NULL; |
bb7a0f54 | 5264 | |
7918f24d NC |
5265 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5266 | ||
bb7a0f54 MHM |
5267 | assert(maxlen >= 0); |
5268 | umaxlen = maxlen; | |
5675696b | 5269 | |
bbed91b5 KF |
5270 | /* I was having segfault trouble under Linux 2.2.5 after a |
5271 | parse error occured. (Had to hack around it with a test | |
13765c85 | 5272 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5273 | not sure where the trouble is yet. XXX */ |
5274 | ||
4464f08e NC |
5275 | { |
5276 | SV *const cache = datasv; | |
937b367d NC |
5277 | if (SvOK(cache)) { |
5278 | STRLEN cache_len; | |
5279 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5280 | STRLEN take = 0; |
5281 | ||
bb7a0f54 | 5282 | if (umaxlen) { |
941a98a0 NC |
5283 | /* Running in block mode and we have some cached data already. |
5284 | */ | |
bb7a0f54 | 5285 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5286 | /* In fact, so much data we don't even need to call |
5287 | filter_read. */ | |
bb7a0f54 | 5288 | take = umaxlen; |
941a98a0 NC |
5289 | } |
5290 | } else { | |
10edeb5d JH |
5291 | const char *const first_nl = |
5292 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5293 | if (first_nl) { |
5294 | take = first_nl + 1 - cache_p; | |
5295 | } | |
5296 | } | |
5297 | if (take) { | |
5298 | sv_catpvn(buf_sv, cache_p, take); | |
5299 | sv_chop(cache, cache_p + take); | |
486ec47a | 5300 | /* Definitely not EOF */ |
937b367d NC |
5301 | return 1; |
5302 | } | |
941a98a0 | 5303 | |
937b367d | 5304 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5305 | if (umaxlen) { |
5306 | umaxlen -= cache_len; | |
941a98a0 | 5307 | } |
937b367d | 5308 | SvOK_off(cache); |
34113e50 | 5309 | read_from_cache = TRUE; |
937b367d NC |
5310 | } |
5311 | } | |
ec0b63d7 | 5312 | |
34113e50 NC |
5313 | /* Filter API says that the filter appends to the contents of the buffer. |
5314 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5315 | then clearly what it contains is already filtered by this filter, so we | |
5316 | don't want to pass it in a second time. | |
5317 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5318 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5319 | ? sv_newmortal() : buf_sv; | |
5320 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5321 | |
bbed91b5 | 5322 | if (filter_has_file) { |
67e70b33 | 5323 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5324 | } |
5325 | ||
34113e50 | 5326 | if (filter_sub && status >= 0) { |
39644a26 | 5327 | dSP; |
bbed91b5 KF |
5328 | int count; |
5329 | ||
d343c3ef | 5330 | ENTER_with_name("call_filter_sub"); |
55b5114f | 5331 | SAVE_DEFSV; |
bbed91b5 KF |
5332 | SAVETMPS; |
5333 | EXTEND(SP, 2); | |
5334 | ||
414bf5ae | 5335 | DEFSV_set(upstream); |
bbed91b5 | 5336 | PUSHMARK(SP); |
6e449a3a | 5337 | mPUSHi(0); |
bbed91b5 KF |
5338 | if (filter_state) { |
5339 | PUSHs(filter_state); | |
5340 | } | |
5341 | PUTBACK; | |
d60d2019 | 5342 | count = call_sv(filter_sub, G_SCALAR|G_EVAL); |
bbed91b5 KF |
5343 | SPAGAIN; |
5344 | ||
5345 | if (count > 0) { | |
5346 | SV *out = POPs; | |
5347 | if (SvOK(out)) { | |
941a98a0 | 5348 | status = SvIV(out); |
bbed91b5 | 5349 | } |
d60d2019 JL |
5350 | else if (SvTRUE(ERRSV)) { |
5351 | err = newSVsv(ERRSV); | |
5352 | } | |
bbed91b5 KF |
5353 | } |
5354 | ||
5355 | PUTBACK; | |
5356 | FREETMPS; | |
d343c3ef | 5357 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5358 | } |
5359 | ||
d60d2019 | 5360 | if(!err && SvOK(upstream)) { |
941a98a0 | 5361 | got_p = SvPV(upstream, got_len); |
bb7a0f54 MHM |
5362 | if (umaxlen) { |
5363 | if (got_len > umaxlen) { | |
5364 | prune_from = got_p + umaxlen; | |
937b367d | 5365 | } |
941a98a0 | 5366 | } else { |
162177c1 | 5367 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5368 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5369 | /* There's a second line here... */ | |
5370 | prune_from = first_nl + 1; | |
937b367d | 5371 | } |
937b367d NC |
5372 | } |
5373 | } | |
d60d2019 | 5374 | if (!err && prune_from) { |
941a98a0 NC |
5375 | /* Oh. Too long. Stuff some in our cache. */ |
5376 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5377 | SV *const cache = datasv; |
941a98a0 | 5378 | |
4464f08e | 5379 | if (SvOK(cache)) { |
941a98a0 NC |
5380 | /* Cache should be empty. */ |
5381 | assert(!SvCUR(cache)); | |
5382 | } | |
5383 | ||
5384 | sv_setpvn(cache, prune_from, cached_len); | |
5385 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5386 | "If it breaks, you get to keep both parts" | |
5387 | (Your code is broken if you don't put them back together again | |
5388 | before something notices.) */ | |
5389 | if (SvUTF8(upstream)) { | |
5390 | SvUTF8_on(cache); | |
5391 | } | |
5392 | SvCUR_set(upstream, got_len - cached_len); | |
162177c1 | 5393 | *prune_from = 0; |
941a98a0 NC |
5394 | /* Can't yet be EOF */ |
5395 | if (status == 0) | |
5396 | status = 1; | |
5397 | } | |
937b367d | 5398 | |
34113e50 NC |
5399 | /* If they are at EOF but buf_sv has something in it, then they may never |
5400 | have touched the SV upstream, so it may be undefined. If we naively | |
5401 | concatenate it then we get a warning about use of uninitialised value. | |
5402 | */ | |
d60d2019 JL |
5403 | if (!err && upstream != buf_sv && |
5404 | (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
5405 | sv_catsv(buf_sv, upstream); |
5406 | } | |
5407 | ||
941a98a0 | 5408 | if (status <= 0) { |
bbed91b5 | 5409 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5410 | if (filter_state) { |
5411 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5412 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5413 | } |
5414 | if (filter_sub) { | |
5415 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5416 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5417 | } |
0bd48802 | 5418 | filter_del(S_run_user_filter); |
bbed91b5 | 5419 | } |
d60d2019 JL |
5420 | |
5421 | if (err) | |
5422 | croak_sv(err); | |
5423 | ||
34113e50 NC |
5424 | if (status == 0 && read_from_cache) { |
5425 | /* If we read some data from the cache (and by getting here it implies | |
5426 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5427 | report that to our caller. */ | |
5428 | return 1; | |
5429 | } | |
941a98a0 | 5430 | return status; |
bbed91b5 | 5431 | } |
84d4ea48 | 5432 | |
be4b629d CN |
5433 | /* perhaps someone can come up with a better name for |
5434 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5435 | static bool |
5f66b61c | 5436 | S_path_is_absolute(const char *name) |
be4b629d | 5437 | { |
7918f24d NC |
5438 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5439 | ||
be4b629d | 5440 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5441 | #ifdef WIN32 |
36f064bc CL |
5442 | || (*name == '.' && ((name[1] == '/' || |
5443 | (name[1] == '.' && name[2] == '/')) | |
5444 | || (name[1] == '\\' || | |
5445 | ( name[1] == '.' && name[2] == '\\'))) | |
5446 | ) | |
5447 | #else | |
be4b629d | 5448 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5449 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5450 | #endif |
0bd48802 | 5451 | ) |
be4b629d CN |
5452 | { |
5453 | return TRUE; | |
5454 | } | |
5455 | else | |
5456 | return FALSE; | |
5457 | } | |
241d1a3b NC |
5458 | |
5459 | /* | |
5460 | * Local variables: | |
5461 | * c-indentation-style: bsd | |
5462 | * c-basic-offset: 4 | |
14d04a33 | 5463 | * indent-tabs-mode: nil |
241d1a3b NC |
5464 | * End: |
5465 | * | |
14d04a33 | 5466 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 5467 | */ |