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 | { | |
39644a26 | 43 | dSP; |
a0d0e21e | 44 | I32 cxix; |
93f0bc49 | 45 | const PERL_CONTEXT *cx; |
a0d0e21e LW |
46 | EXTEND(SP, 1); |
47 | ||
93f0bc49 FC |
48 | if (PL_op->op_private & OPpOFFBYONE) { |
49 | if (!(cx = caller_cx(1,NULL))) RETPUSHUNDEF; | |
50 | } | |
51 | else { | |
52 | cxix = dopoptosub(cxstack_ix); | |
53 | if (cxix < 0) | |
a0d0e21e | 54 | RETPUSHUNDEF; |
93f0bc49 FC |
55 | cx = &cxstack[cxix]; |
56 | } | |
a0d0e21e | 57 | |
93f0bc49 | 58 | switch (cx->blk_gimme) { |
54310121 | 59 | case G_ARRAY: |
a0d0e21e | 60 | RETPUSHYES; |
54310121 | 61 | case G_SCALAR: |
a0d0e21e | 62 | RETPUSHNO; |
54310121 | 63 | default: |
64 | RETPUSHUNDEF; | |
65 | } | |
a0d0e21e LW |
66 | } |
67 | ||
2cd61cdb IZ |
68 | PP(pp_regcreset) |
69 | { | |
0b4182de | 70 | TAINT_NOT; |
2cd61cdb IZ |
71 | return NORMAL; |
72 | } | |
73 | ||
b3eb6a9b GS |
74 | PP(pp_regcomp) |
75 | { | |
39644a26 | 76 | dSP; |
eb578fdb | 77 | PMOP *pm = (PMOP*)cLOGOP->op_other; |
9f141731 | 78 | SV **args; |
df787a7b | 79 | int nargs; |
84679df5 | 80 | REGEXP *re = NULL; |
9f141731 DM |
81 | REGEXP *new_re; |
82 | const regexp_engine *eng; | |
dbc200c5 | 83 | bool is_bare_re= FALSE; |
bfed75c6 | 84 | |
df787a7b DM |
85 | if (PL_op->op_flags & OPf_STACKED) { |
86 | dMARK; | |
87 | nargs = SP - MARK; | |
88 | args = ++MARK; | |
89 | } | |
90 | else { | |
91 | nargs = 1; | |
92 | args = SP; | |
93 | } | |
94 | ||
4b5a0d1c | 95 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 96 | #if defined(USE_ITHREADS) |
131b3ad0 | 97 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
df787a7b | 98 | SP = args-1; |
131b3ad0 DM |
99 | RETURN; |
100 | } | |
513629ba | 101 | #endif |
d4b87e75 | 102 | |
9f141731 DM |
103 | re = PM_GETRE(pm); |
104 | assert (re != (REGEXP*) &PL_sv_undef); | |
105 | eng = re ? RX_ENGINE(re) : current_re_engine(); | |
106 | ||
dbc200c5 YO |
107 | /* |
108 | In the below logic: these are basically the same - check if this regcomp is part of a split. | |
109 | ||
110 | (PL_op->op_pmflags & PMf_split ) | |
111 | (PL_op->op_next->op_type == OP_PUSHRE) | |
112 | ||
113 | We could add a new mask for this and copy the PMf_split, if we did | |
114 | some bit definition fiddling first. | |
115 | ||
116 | For now we leave this | |
117 | */ | |
118 | ||
3c13cae6 DM |
119 | new_re = (eng->op_comp |
120 | ? eng->op_comp | |
121 | : &Perl_re_op_compile | |
122 | )(aTHX_ args, nargs, pm->op_code_list, eng, re, | |
346d3070 | 123 | &is_bare_re, |
dbc200c5 | 124 | (pm->op_pmflags & RXf_PMf_FLAGCOPYMASK), |
a5ae69f0 DM |
125 | pm->op_pmflags | |
126 | (PL_op->op_flags & OPf_SPECIAL ? PMf_USE_RE_EVAL : 0)); | |
dbc200c5 | 127 | |
346d3070 | 128 | if (pm->op_pmflags & PMf_HAS_CV) |
8d919b0a | 129 | ReANY(new_re)->qr_anoncv |
9fe3265f | 130 | = (CV*) SvREFCNT_inc(PAD_SV(PL_op->op_targ)); |
9f141731 DM |
131 | |
132 | if (is_bare_re) { | |
133 | REGEXP *tmp; | |
134 | /* The match's LHS's get-magic might need to access this op's regexp | |
135 | (e.g. $' =~ /$re/ while foo; see bug 70764). So we must call | |
136 | get-magic now before we replace the regexp. Hopefully this hack can | |
137 | be replaced with the approach described at | |
138 | http://www.nntp.perl.org/group/perl.perl5.porters/2007/03/msg122415.html | |
139 | some day. */ | |
140 | if (pm->op_type == OP_MATCH) { | |
141 | SV *lhs; | |
284167a5 | 142 | const bool was_tainted = TAINT_get; |
9f141731 DM |
143 | if (pm->op_flags & OPf_STACKED) |
144 | lhs = args[-1]; | |
6ffceeb7 | 145 | else if (pm->op_targ) |
9f141731 DM |
146 | lhs = PAD_SV(pm->op_targ); |
147 | else lhs = DEFSV; | |
148 | SvGETMAGIC(lhs); | |
149 | /* Restore the previous value of PL_tainted (which may have been | |
150 | modified by get-magic), to avoid incorrectly setting the | |
284167a5 S |
151 | RXf_TAINTED flag with RX_TAINT_on further down. */ |
152 | TAINT_set(was_tainted); | |
dc6d7f5c | 153 | #ifdef NO_TAINT_SUPPORT |
9a9b5ec9 DM |
154 | PERL_UNUSED_VAR(was_tainted); |
155 | #endif | |
df787a7b | 156 | } |
9f141731 DM |
157 | tmp = reg_temp_copy(NULL, new_re); |
158 | ReREFCNT_dec(new_re); | |
159 | new_re = tmp; | |
df787a7b | 160 | } |
dbc200c5 | 161 | |
9f141731 DM |
162 | if (re != new_re) { |
163 | ReREFCNT_dec(re); | |
164 | PM_SETRE(pm, new_re); | |
c277df42 | 165 | } |
d4b87e75 | 166 | |
dbc200c5 | 167 | |
284167a5 | 168 | if (TAINTING_get && TAINT_get) { |
9f141731 | 169 | SvTAINTED_on((SV*)new_re); |
284167a5 | 170 | RX_TAINT_on(new_re); |
72311751 | 171 | } |
72311751 | 172 | |
c737faaf YO |
173 | #if !defined(USE_ITHREADS) |
174 | /* can't change the optree at runtime either */ | |
175 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
9f141731 DM |
176 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
177 | pm = PL_curpm; | |
a0d0e21e | 178 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 179 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 180 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 181 | } |
c737faaf | 182 | #endif |
9f141731 | 183 | |
df787a7b | 184 | SP = args-1; |
a0d0e21e LW |
185 | RETURN; |
186 | } | |
187 | ||
9f141731 | 188 | |
a0d0e21e LW |
189 | PP(pp_substcont) |
190 | { | |
39644a26 | 191 | dSP; |
eb578fdb KW |
192 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
193 | PMOP * const pm = (PMOP*) cLOGOP->op_other; | |
194 | SV * const dstr = cx->sb_dstr; | |
195 | char *s = cx->sb_s; | |
196 | char *m = cx->sb_m; | |
a0d0e21e | 197 | char *orig = cx->sb_orig; |
eb578fdb | 198 | REGEXP * const rx = cx->sb_rx; |
c445ea15 | 199 | SV *nsv = NULL; |
988e6e7e | 200 | REGEXP *old = PM_GETRE(pm); |
f410a211 NC |
201 | |
202 | PERL_ASYNC_CHECK(); | |
203 | ||
988e6e7e | 204 | if(old != rx) { |
bfed75c6 | 205 | if(old) |
988e6e7e | 206 | ReREFCNT_dec(old); |
d6106309 | 207 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
208 | } |
209 | ||
d9f97599 | 210 | rxres_restore(&cx->sb_rxres, rx); |
c90c0ff4 | 211 | |
a0d0e21e | 212 | if (cx->sb_iters++) { |
3c6ef0a5 | 213 | const SSize_t saviters = cx->sb_iters; |
a0d0e21e | 214 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 215 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 216 | |
447ee134 DM |
217 | SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */ |
218 | ||
ef07e810 | 219 | /* See "how taint works" above pp_subst() */ |
20be6587 DM |
220 | if (SvTAINTED(TOPs)) |
221 | cx->sb_rxtainted |= SUBST_TAINT_REPL; | |
447ee134 | 222 | sv_catsv_nomg(dstr, POPs); |
2c296965 | 223 | if (CxONCE(cx) || s < orig || |
03c83e26 DM |
224 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, |
225 | (s == m), cx->sb_targ, NULL, | |
d5e7783a | 226 | (REXEC_IGNOREPOS|REXEC_NOT_FIRST|REXEC_FAIL_ON_UNDERFLOW))) |
a0d0e21e | 227 | { |
8ca8a454 | 228 | SV *targ = cx->sb_targ; |
748a9306 | 229 | |
078c425b JH |
230 | assert(cx->sb_strend >= s); |
231 | if(cx->sb_strend > s) { | |
232 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
4bac9ae4 | 233 | sv_catpvn_nomg_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); |
078c425b | 234 | else |
4bac9ae4 | 235 | sv_catpvn_nomg(dstr, s, cx->sb_strend - s); |
078c425b | 236 | } |
20be6587 DM |
237 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ |
238 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
9212bbba | 239 | |
8ca8a454 NC |
240 | if (pm->op_pmflags & PMf_NONDESTRUCT) { |
241 | PUSHs(dstr); | |
242 | /* From here on down we're using the copy, and leaving the | |
243 | original untouched. */ | |
244 | targ = dstr; | |
245 | } | |
246 | else { | |
9e0ea7f3 FC |
247 | SV_CHECK_THINKFIRST_COW_DROP(targ); |
248 | if (isGV(targ)) Perl_croak_no_modify(); | |
249 | SvPV_free(targ); | |
8ca8a454 NC |
250 | SvPV_set(targ, SvPVX(dstr)); |
251 | SvCUR_set(targ, SvCUR(dstr)); | |
252 | SvLEN_set(targ, SvLEN(dstr)); | |
253 | if (DO_UTF8(dstr)) | |
254 | SvUTF8_on(targ); | |
255 | SvPV_set(dstr, NULL); | |
256 | ||
52c47e16 | 257 | PL_tainted = 0; |
4f4d7508 | 258 | mPUSHi(saviters - 1); |
48c036b1 | 259 | |
8ca8a454 NC |
260 | (void)SvPOK_only_UTF8(targ); |
261 | } | |
5cd24f17 | 262 | |
20be6587 | 263 | /* update the taint state of various various variables in |
ef07e810 DM |
264 | * preparation for final exit. |
265 | * See "how taint works" above pp_subst() */ | |
284167a5 | 266 | if (TAINTING_get) { |
20be6587 DM |
267 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || |
268 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
269 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
270 | ) | |
271 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
272 | ||
273 | if (!(cx->sb_rxtainted & SUBST_TAINT_BOOLRET) | |
274 | && (cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_PAT)) | |
275 | ) | |
276 | SvTAINTED_on(TOPs); /* taint return value */ | |
277 | /* needed for mg_set below */ | |
284167a5 S |
278 | TAINT_set( |
279 | cBOOL(cx->sb_rxtainted & | |
280 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL)) | |
281 | ); | |
20be6587 DM |
282 | SvTAINT(TARG); |
283 | } | |
284 | /* PL_tainted must be correctly set for this mg_set */ | |
285 | SvSETMAGIC(TARG); | |
286 | TAINT_NOT; | |
4633a7c4 | 287 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e | 288 | POPSUBST(cx); |
47c9d59f | 289 | PERL_ASYNC_CHECK(); |
a0d0e21e | 290 | RETURNOP(pm->op_next); |
e5964223 | 291 | NOT_REACHED; /* NOTREACHED */ |
a0d0e21e | 292 | } |
8e5e9ebe | 293 | cx->sb_iters = saviters; |
a0d0e21e | 294 | } |
07bc277f | 295 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
296 | m = s; |
297 | s = orig; | |
6502e081 | 298 | assert(!RX_SUBOFFSET(rx)); |
07bc277f | 299 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
300 | s = orig + (m - s); |
301 | cx->sb_strend = s + (cx->sb_strend - m); | |
302 | } | |
07bc277f | 303 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 304 | if (m > s) { |
bfed75c6 | 305 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
4bac9ae4 | 306 | sv_catpvn_nomg_utf8_upgrade(dstr, s, m - s, nsv); |
db79b45b | 307 | else |
4bac9ae4 | 308 | sv_catpvn_nomg(dstr, s, m-s); |
db79b45b | 309 | } |
07bc277f | 310 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 311 | { /* Update the pos() information. */ |
8ca8a454 NC |
312 | SV * const sv |
313 | = (pm->op_pmflags & PMf_NONDESTRUCT) ? cx->sb_dstr : cx->sb_targ; | |
084916e3 | 314 | MAGIC *mg; |
a911bb25 DM |
315 | |
316 | /* the string being matched against may no longer be a string, | |
317 | * e.g. $_=0; s/.../$_++/ge */ | |
318 | ||
319 | if (!SvPOK(sv)) | |
320 | SvPV_force_nomg_nolen(sv); | |
321 | ||
96c2a8ff FC |
322 | if (!(mg = mg_find_mglob(sv))) { |
323 | mg = sv_magicext_mglob(sv); | |
084916e3 | 324 | } |
cda67c99 | 325 | MgBYTEPOS_set(mg, sv, SvPVX(sv), m - orig); |
084916e3 | 326 | } |
988e6e7e | 327 | if (old != rx) |
d6106309 | 328 | (void)ReREFCNT_inc(rx); |
20be6587 | 329 | /* update the taint state of various various variables in preparation |
ef07e810 DM |
330 | * for calling the code block. |
331 | * See "how taint works" above pp_subst() */ | |
284167a5 | 332 | if (TAINTING_get) { |
20be6587 DM |
333 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ |
334 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
335 | ||
336 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || | |
337 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
338 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
339 | ) | |
340 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
341 | ||
342 | if (cx->sb_iters > 1 && (cx->sb_rxtainted & | |
343 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL))) | |
8ca8a454 NC |
344 | SvTAINTED_on((pm->op_pmflags & PMf_NONDESTRUCT) |
345 | ? cx->sb_dstr : cx->sb_targ); | |
20be6587 DM |
346 | TAINT_NOT; |
347 | } | |
d9f97599 | 348 | rxres_save(&cx->sb_rxres, rx); |
af9838cc | 349 | PL_curpm = pm; |
29f2e912 | 350 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
351 | } |
352 | ||
c90c0ff4 | 353 | void |
864dbfa3 | 354 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 355 | { |
356 | UV *p = (UV*)*rsp; | |
357 | U32 i; | |
7918f24d NC |
358 | |
359 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 360 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 361 | |
07bc277f | 362 | if (!p || p[1] < RX_NPARENS(rx)) { |
db2c6cb3 | 363 | #ifdef PERL_ANY_COW |
6502e081 | 364 | i = 7 + (RX_NPARENS(rx)+1) * 2; |
ed252734 | 365 | #else |
6502e081 | 366 | i = 6 + (RX_NPARENS(rx)+1) * 2; |
ed252734 | 367 | #endif |
c90c0ff4 | 368 | if (!p) |
a02a5408 | 369 | Newx(p, i, UV); |
c90c0ff4 | 370 | else |
371 | Renew(p, i, UV); | |
372 | *rsp = (void*)p; | |
373 | } | |
374 | ||
5eabab15 DM |
375 | /* what (if anything) to free on croak */ |
376 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); | |
cf93c79d | 377 | RX_MATCH_COPIED_off(rx); |
6c31ff74 | 378 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 379 | |
db2c6cb3 | 380 | #ifdef PERL_ANY_COW |
bdd9a1b1 NC |
381 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
382 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
383 | #endif |
384 | ||
07bc277f NC |
385 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
386 | *p++ = (UV)RX_SUBLEN(rx); | |
6502e081 DM |
387 | *p++ = (UV)RX_SUBOFFSET(rx); |
388 | *p++ = (UV)RX_SUBCOFFSET(rx); | |
07bc277f NC |
389 | for (i = 0; i <= RX_NPARENS(rx); ++i) { |
390 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
391 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 392 | } |
393 | } | |
394 | ||
9c105995 NC |
395 | static void |
396 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 397 | { |
398 | UV *p = (UV*)*rsp; | |
399 | U32 i; | |
7918f24d NC |
400 | |
401 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 402 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 403 | |
ed252734 | 404 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 405 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 406 | *p++ = 0; |
6c31ff74 | 407 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 408 | |
db2c6cb3 | 409 | #ifdef PERL_ANY_COW |
bdd9a1b1 NC |
410 | if (RX_SAVED_COPY(rx)) |
411 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
412 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
413 | *p++ = 0; |
414 | #endif | |
415 | ||
07bc277f NC |
416 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
417 | RX_SUBLEN(rx) = (I32)(*p++); | |
6502e081 DM |
418 | RX_SUBOFFSET(rx) = (I32)*p++; |
419 | RX_SUBCOFFSET(rx) = (I32)*p++; | |
07bc277f NC |
420 | for (i = 0; i <= RX_NPARENS(rx); ++i) { |
421 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
422 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 423 | } |
424 | } | |
425 | ||
9c105995 NC |
426 | static void |
427 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 428 | { |
44f8325f | 429 | UV * const p = (UV*)*rsp; |
7918f24d NC |
430 | |
431 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 432 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 433 | |
434 | if (p) { | |
94010e71 | 435 | void *tmp = INT2PTR(char*,*p); |
6c31ff74 | 436 | #ifdef PERL_POISON |
db2c6cb3 | 437 | #ifdef PERL_ANY_COW |
6c31ff74 | 438 | U32 i = 9 + p[1] * 2; |
94010e71 | 439 | #else |
6c31ff74 | 440 | U32 i = 8 + p[1] * 2; |
94010e71 | 441 | #endif |
6c31ff74 NC |
442 | #endif |
443 | ||
db2c6cb3 | 444 | #ifdef PERL_ANY_COW |
6c31ff74 | 445 | SvREFCNT_dec (INT2PTR(SV*,p[2])); |
ed252734 | 446 | #endif |
6c31ff74 NC |
447 | #ifdef PERL_POISON |
448 | PoisonFree(p, i, sizeof(UV)); | |
449 | #endif | |
450 | ||
451 | Safefree(tmp); | |
c90c0ff4 | 452 | Safefree(p); |
4608196e | 453 | *rsp = NULL; |
c90c0ff4 | 454 | } |
455 | } | |
456 | ||
a701009a DM |
457 | #define FORM_NUM_BLANK (1<<30) |
458 | #define FORM_NUM_POINT (1<<29) | |
459 | ||
a0d0e21e LW |
460 | PP(pp_formline) |
461 | { | |
20b7effb | 462 | dSP; dMARK; dORIGMARK; |
eb578fdb | 463 | SV * const tmpForm = *++MARK; |
086b26f3 | 464 | SV *formsv; /* contains text of original format */ |
eb578fdb KW |
465 | U32 *fpc; /* format ops program counter */ |
466 | char *t; /* current append position in target string */ | |
086b26f3 | 467 | const char *f; /* current position in format string */ |
eb578fdb KW |
468 | I32 arg; |
469 | SV *sv = NULL; /* current item */ | |
086b26f3 | 470 | const char *item = NULL;/* string value of current item */ |
9b4bdfd4 DM |
471 | I32 itemsize = 0; /* length (chars) of item, possibly truncated */ |
472 | I32 itembytes = 0; /* as itemsize, but length in bytes */ | |
086b26f3 DM |
473 | I32 fieldsize = 0; /* width of current field */ |
474 | I32 lines = 0; /* number of lines that have been output */ | |
475 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); /* does $: have space */ | |
476 | const char *chophere = NULL; /* where to chop current item */ | |
f5ada144 | 477 | STRLEN linemark = 0; /* pos of start of line in output */ |
65202027 | 478 | NV value; |
086b26f3 | 479 | bool gotsome = FALSE; /* seen at least one non-blank item on this line */ |
9b4bdfd4 | 480 | STRLEN len; /* length of current sv */ |
26e935cf | 481 | STRLEN linemax; /* estimate of output size in bytes */ |
1bd51a4c IH |
482 | bool item_is_utf8 = FALSE; |
483 | bool targ_is_utf8 = FALSE; | |
bd7084a6 | 484 | const char *fmt; |
74e0ddf7 | 485 | MAGIC *mg = NULL; |
4ff700b9 DM |
486 | U8 *source; /* source of bytes to append */ |
487 | STRLEN to_copy; /* how may bytes to append */ | |
ea60cfe8 | 488 | char trans; /* what chars to translate */ |
74e0ddf7 | 489 | |
3808a683 | 490 | mg = doparseform(tmpForm); |
a0d0e21e | 491 | |
74e0ddf7 | 492 | fpc = (U32*)mg->mg_ptr; |
3808a683 DM |
493 | /* the actual string the format was compiled from. |
494 | * with overload etc, this may not match tmpForm */ | |
495 | formsv = mg->mg_obj; | |
496 | ||
74e0ddf7 | 497 | |
3280af22 | 498 | SvPV_force(PL_formtarget, len); |
3808a683 | 499 | if (SvTAINTED(tmpForm) || SvTAINTED(formsv)) |
125b9982 | 500 | SvTAINTED_on(PL_formtarget); |
1bd51a4c IH |
501 | if (DO_UTF8(PL_formtarget)) |
502 | targ_is_utf8 = TRUE; | |
26e935cf DM |
503 | linemax = (SvCUR(formsv) * (IN_BYTES ? 1 : 3) + 1); |
504 | t = SvGROW(PL_formtarget, len + linemax + 1); | |
505 | /* XXX from now onwards, SvCUR(PL_formtarget) is invalid */ | |
a0d0e21e | 506 | t += len; |
3808a683 | 507 | f = SvPV_const(formsv, len); |
a0d0e21e LW |
508 | |
509 | for (;;) { | |
510 | DEBUG_f( { | |
bfed75c6 | 511 | const char *name = "???"; |
a0d0e21e LW |
512 | arg = -1; |
513 | switch (*fpc) { | |
514 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
515 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
516 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
517 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
518 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
519 | ||
520 | case FF_CHECKNL: name = "CHECKNL"; break; | |
521 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
522 | case FF_SPACE: name = "SPACE"; break; | |
523 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
524 | case FF_ITEM: name = "ITEM"; break; | |
525 | case FF_CHOP: name = "CHOP"; break; | |
526 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
527 | case FF_NEWLINE: name = "NEWLINE"; break; | |
528 | case FF_MORE: name = "MORE"; break; | |
529 | case FF_LINEMARK: name = "LINEMARK"; break; | |
530 | case FF_END: name = "END"; break; | |
bfed75c6 | 531 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 532 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
533 | } |
534 | if (arg >= 0) | |
bf49b057 | 535 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 536 | else |
bf49b057 | 537 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 538 | } ); |
a0d0e21e | 539 | switch (*fpc++) { |
4a73dc0b | 540 | case FF_LINEMARK: /* start (or end) of a line */ |
f5ada144 | 541 | linemark = t - SvPVX(PL_formtarget); |
a0d0e21e LW |
542 | lines++; |
543 | gotsome = FALSE; | |
544 | break; | |
545 | ||
4a73dc0b | 546 | case FF_LITERAL: /* append <arg> literal chars */ |
ea60cfe8 DM |
547 | to_copy = *fpc++; |
548 | source = (U8 *)f; | |
549 | f += to_copy; | |
550 | trans = '~'; | |
75645721 | 551 | item_is_utf8 = targ_is_utf8 ? !!DO_UTF8(formsv) : !!SvUTF8(formsv); |
ea60cfe8 | 552 | goto append; |
a0d0e21e | 553 | |
4a73dc0b | 554 | case FF_SKIP: /* skip <arg> chars in format */ |
a0d0e21e LW |
555 | f += *fpc++; |
556 | break; | |
557 | ||
4a73dc0b | 558 | case FF_FETCH: /* get next item and set field size to <arg> */ |
a0d0e21e LW |
559 | arg = *fpc++; |
560 | f += arg; | |
561 | fieldsize = arg; | |
562 | ||
563 | if (MARK < SP) | |
564 | sv = *++MARK; | |
565 | else { | |
3280af22 | 566 | sv = &PL_sv_no; |
a2a5de95 | 567 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e | 568 | } |
125b9982 NT |
569 | if (SvTAINTED(sv)) |
570 | SvTAINTED_on(PL_formtarget); | |
a0d0e21e LW |
571 | break; |
572 | ||
4a73dc0b | 573 | case FF_CHECKNL: /* find max len of item (up to \n) that fits field */ |
5a34cab7 | 574 | { |
5a34cab7 | 575 | const char *s = item = SvPV_const(sv, len); |
9b4bdfd4 DM |
576 | const char *send = s + len; |
577 | ||
578 | itemsize = 0; | |
579 | item_is_utf8 = DO_UTF8(sv); | |
580 | while (s < send) { | |
581 | if (!isCNTRL(*s)) | |
582 | gotsome = TRUE; | |
583 | else if (*s == '\n') | |
584 | break; | |
585 | ||
586 | if (item_is_utf8) | |
587 | s += UTF8SKIP(s); | |
588 | else | |
589 | s++; | |
590 | itemsize++; | |
591 | if (itemsize == fieldsize) | |
592 | break; | |
593 | } | |
594 | itembytes = s - item; | |
62db6ea5 | 595 | chophere = s; |
5a34cab7 | 596 | break; |
a0ed51b3 | 597 | } |
a0d0e21e | 598 | |
4a73dc0b | 599 | case FF_CHECKCHOP: /* like CHECKNL, but up to highest split point */ |
5a34cab7 NC |
600 | { |
601 | const char *s = item = SvPV_const(sv, len); | |
9b4bdfd4 DM |
602 | const char *send = s + len; |
603 | I32 size = 0; | |
604 | ||
605 | chophere = NULL; | |
606 | item_is_utf8 = DO_UTF8(sv); | |
607 | while (s < send) { | |
608 | /* look for a legal split position */ | |
609 | if (isSPACE(*s)) { | |
610 | if (*s == '\r') { | |
611 | chophere = s; | |
612 | itemsize = size; | |
613 | break; | |
614 | } | |
615 | if (chopspace) { | |
616 | /* provisional split point */ | |
617 | chophere = s; | |
618 | itemsize = size; | |
619 | } | |
620 | /* we delay testing fieldsize until after we've | |
621 | * processed the possible split char directly | |
622 | * following the last field char; so if fieldsize=3 | |
623 | * and item="a b cdef", we consume "a b", not "a". | |
624 | * Ditto further down. | |
625 | */ | |
626 | if (size == fieldsize) | |
627 | break; | |
628 | } | |
629 | else { | |
630 | if (strchr(PL_chopset, *s)) { | |
631 | /* provisional split point */ | |
632 | /* for a non-space split char, we include | |
633 | * the split char; hence the '+1' */ | |
634 | chophere = s + 1; | |
635 | itemsize = size; | |
636 | } | |
637 | if (size == fieldsize) | |
638 | break; | |
639 | if (!isCNTRL(*s)) | |
640 | gotsome = TRUE; | |
641 | } | |
642 | ||
643 | if (item_is_utf8) | |
644 | s += UTF8SKIP(s); | |
645 | else | |
077dbbf3 | 646 | s++; |
9b4bdfd4 DM |
647 | size++; |
648 | } | |
649 | if (!chophere || s == send) { | |
650 | chophere = s; | |
651 | itemsize = size; | |
652 | } | |
653 | itembytes = chophere - item; | |
654 | ||
5a34cab7 | 655 | break; |
a0d0e21e | 656 | } |
a0d0e21e | 657 | |
4a73dc0b | 658 | case FF_SPACE: /* append padding space (diff of field, item size) */ |
a0d0e21e LW |
659 | arg = fieldsize - itemsize; |
660 | if (arg) { | |
661 | fieldsize -= arg; | |
662 | while (arg-- > 0) | |
663 | *t++ = ' '; | |
664 | } | |
665 | break; | |
666 | ||
4a73dc0b | 667 | case FF_HALFSPACE: /* like FF_SPACE, but only append half as many */ |
a0d0e21e LW |
668 | arg = fieldsize - itemsize; |
669 | if (arg) { | |
670 | arg /= 2; | |
671 | fieldsize -= arg; | |
672 | while (arg-- > 0) | |
673 | *t++ = ' '; | |
674 | } | |
675 | break; | |
676 | ||
4a73dc0b | 677 | case FF_ITEM: /* append a text item, while blanking ctrl chars */ |
9b4bdfd4 | 678 | to_copy = itembytes; |
8aa7beb6 DM |
679 | source = (U8 *)item; |
680 | trans = 1; | |
8aa7beb6 | 681 | goto append; |
a0d0e21e | 682 | |
4a73dc0b | 683 | case FF_CHOP: /* (for ^*) chop the current item */ |
fb9282c3 | 684 | if (sv != &PL_sv_no) { |
5a34cab7 NC |
685 | const char *s = chophere; |
686 | if (chopspace) { | |
af68e756 | 687 | while (isSPACE(*s)) |
5a34cab7 NC |
688 | s++; |
689 | } | |
9b4bdfd4 DM |
690 | if (SvPOKp(sv)) |
691 | sv_chop(sv,s); | |
692 | else | |
693 | /* tied, overloaded or similar strangeness. | |
694 | * Do it the hard way */ | |
695 | sv_setpvn(sv, s, len - (s-item)); | |
5a34cab7 NC |
696 | SvSETMAGIC(sv); |
697 | break; | |
a0d0e21e | 698 | } |
a0d0e21e | 699 | |
4a73dc0b | 700 | case FF_LINESNGL: /* process ^* */ |
a1b95068 | 701 | chopspace = 0; |
c67159e1 | 702 | /* FALLTHROUGH */ |
4a73dc0b DM |
703 | |
704 | case FF_LINEGLOB: /* process @* */ | |
5a34cab7 | 705 | { |
e32383e2 | 706 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 707 | const char *s = item = SvPV_const(sv, len); |
7440a75b | 708 | const char *const send = s + len; |
7440a75b | 709 | |
f3f2f1a3 | 710 | item_is_utf8 = DO_UTF8(sv); |
fb9282c3 | 711 | chophere = s + len; |
a1137ee5 | 712 | if (!len) |
7440a75b | 713 | break; |
ea60cfe8 | 714 | trans = 0; |
0d21cefe | 715 | gotsome = TRUE; |
4ff700b9 DM |
716 | source = (U8 *) s; |
717 | to_copy = len; | |
0d21cefe DM |
718 | while (s < send) { |
719 | if (*s++ == '\n') { | |
720 | if (oneline) { | |
9b4bdfd4 | 721 | to_copy = s - item - 1; |
0d21cefe DM |
722 | chophere = s; |
723 | break; | |
724 | } else { | |
725 | if (s == send) { | |
0d21cefe DM |
726 | to_copy--; |
727 | } else | |
728 | lines++; | |
1bd51a4c | 729 | } |
a0d0e21e | 730 | } |
0d21cefe | 731 | } |
a2c0032b DM |
732 | } |
733 | ||
ea60cfe8 DM |
734 | append: |
735 | /* append to_copy bytes from source to PL_formstring. | |
736 | * item_is_utf8 implies source is utf8. | |
737 | * if trans, translate certain characters during the copy */ | |
a2c0032b DM |
738 | { |
739 | U8 *tmp = NULL; | |
26e935cf | 740 | STRLEN grow = 0; |
0325ce87 DM |
741 | |
742 | SvCUR_set(PL_formtarget, | |
743 | t - SvPVX_const(PL_formtarget)); | |
744 | ||
0d21cefe DM |
745 | if (targ_is_utf8 && !item_is_utf8) { |
746 | source = tmp = bytes_to_utf8(source, &to_copy); | |
0d21cefe DM |
747 | } else { |
748 | if (item_is_utf8 && !targ_is_utf8) { | |
f5ada144 | 749 | U8 *s; |
0d21cefe | 750 | /* Upgrade targ to UTF8, and then we reduce it to |
0325ce87 DM |
751 | a problem we have a simple solution for. |
752 | Don't need get magic. */ | |
0d21cefe | 753 | sv_utf8_upgrade_nomg(PL_formtarget); |
0325ce87 | 754 | targ_is_utf8 = TRUE; |
f5ada144 DM |
755 | /* re-calculate linemark */ |
756 | s = (U8*)SvPVX(PL_formtarget); | |
26e935cf DM |
757 | /* the bytes we initially allocated to append the |
758 | * whole line may have been gobbled up during the | |
759 | * upgrade, so allocate a whole new line's worth | |
760 | * for safety */ | |
761 | grow = linemax; | |
f5ada144 DM |
762 | while (linemark--) |
763 | s += UTF8SKIP(s); | |
764 | linemark = s - (U8*)SvPVX(PL_formtarget); | |
e8e72d41 | 765 | } |
0d21cefe DM |
766 | /* Easy. They agree. */ |
767 | assert (item_is_utf8 == targ_is_utf8); | |
768 | } | |
26e935cf DM |
769 | if (!trans) |
770 | /* @* and ^* are the only things that can exceed | |
771 | * the linemax, so grow by the output size, plus | |
772 | * a whole new form's worth in case of any further | |
773 | * output */ | |
774 | grow = linemax + to_copy; | |
775 | if (grow) | |
776 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + grow + 1); | |
0d21cefe DM |
777 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
778 | ||
779 | Copy(source, t, to_copy, char); | |
ea60cfe8 | 780 | if (trans) { |
8aa7beb6 DM |
781 | /* blank out ~ or control chars, depending on trans. |
782 | * works on bytes not chars, so relies on not | |
783 | * matching utf8 continuation bytes */ | |
ea60cfe8 DM |
784 | U8 *s = (U8*)t; |
785 | U8 *send = s + to_copy; | |
786 | while (s < send) { | |
8aa7beb6 | 787 | const int ch = *s; |
077dbbf3 | 788 | if (trans == '~' ? (ch == '~') : isCNTRL(ch)) |
ea60cfe8 DM |
789 | *s = ' '; |
790 | s++; | |
791 | } | |
792 | } | |
793 | ||
0d21cefe DM |
794 | t += to_copy; |
795 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
a1137ee5 | 796 | if (tmp) |
0d21cefe | 797 | Safefree(tmp); |
5a34cab7 | 798 | break; |
a0d0e21e | 799 | } |
a0d0e21e | 800 | |
4a73dc0b | 801 | case FF_0DECIMAL: /* like FF_DECIMAL but for 0### */ |
a0d0e21e | 802 | arg = *fpc++; |
bd7084a6 | 803 | fmt = (const char *) |
a029fa42 | 804 | ((arg & FORM_NUM_POINT) ? "%#0*.*" NVff : "%0*.*" NVff); |
bd7084a6 | 805 | goto ff_dec; |
5d37acd6 | 806 | |
bd7084a6 DM |
807 | case FF_DECIMAL: /* do @##, ^##, where <arg>=(precision|flags) */ |
808 | arg = *fpc++; | |
bd7084a6 | 809 | fmt = (const char *) |
a029fa42 | 810 | ((arg & FORM_NUM_POINT) ? "%#*.*" NVff : "%*.*" NVff); |
bd7084a6 | 811 | ff_dec: |
784707d5 JP |
812 | /* If the field is marked with ^ and the value is undefined, |
813 | blank it out. */ | |
a701009a | 814 | if ((arg & FORM_NUM_BLANK) && !SvOK(sv)) { |
784707d5 JP |
815 | arg = fieldsize; |
816 | while (arg--) | |
817 | *t++ = ' '; | |
818 | break; | |
819 | } | |
820 | gotsome = TRUE; | |
821 | value = SvNV(sv); | |
a1b95068 | 822 | /* overflow evidence */ |
bfed75c6 | 823 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
824 | arg = fieldsize; |
825 | while (arg--) | |
826 | *t++ = '#'; | |
827 | break; | |
828 | } | |
784707d5 JP |
829 | /* Formats aren't yet marked for locales, so assume "yes". */ |
830 | { | |
e8549682 JH |
831 | Size_t max = SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)); |
832 | int len; | |
67d796ae KW |
833 | DECLARATION_FOR_LC_NUMERIC_MANIPULATION; |
834 | STORE_LC_NUMERIC_SET_TO_NEEDED(); | |
51f14a05 | 835 | arg &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
a4eca1d4 JH |
836 | #ifdef USE_QUADMATH |
837 | { | |
838 | const char* qfmt = quadmath_format_single(fmt); | |
839 | int len; | |
840 | if (!qfmt) | |
841 | Perl_croak_nocontext("panic: quadmath invalid format \"%s\"", fmt); | |
842 | len = quadmath_snprintf(t, max, qfmt, (int) fieldsize, (int) arg, value); | |
843 | if (len == -1) | |
844 | Perl_croak_nocontext("panic: quadmath_snprintf failed, format \"%s\"", qfmt); | |
845 | if (qfmt != fmt) | |
846 | Safefree(fmt); | |
847 | } | |
848 | #else | |
b587c0e8 DM |
849 | /* we generate fmt ourselves so it is safe */ |
850 | GCC_DIAG_IGNORE(-Wformat-nonliteral); | |
e8549682 | 851 | len = my_snprintf(t, max, fmt, (int) fieldsize, (int) arg, value); |
b587c0e8 | 852 | GCC_DIAG_RESTORE; |
a4eca1d4 JH |
853 | #endif |
854 | PERL_MY_SNPRINTF_POST_GUARD(len, max); | |
a2287a13 | 855 | RESTORE_LC_NUMERIC(); |
784707d5 JP |
856 | } |
857 | t += fieldsize; | |
858 | break; | |
a1b95068 | 859 | |
4a73dc0b | 860 | case FF_NEWLINE: /* delete trailing spaces, then append \n */ |
a0d0e21e | 861 | f++; |
f5ada144 | 862 | while (t-- > (SvPVX(PL_formtarget) + linemark) && *t == ' ') ; |
a0d0e21e LW |
863 | t++; |
864 | *t++ = '\n'; | |
865 | break; | |
866 | ||
4a73dc0b | 867 | case FF_BLANK: /* for arg==0: do '~'; for arg>0 : do '~~' */ |
a0d0e21e LW |
868 | arg = *fpc++; |
869 | if (gotsome) { | |
870 | if (arg) { /* repeat until fields exhausted? */ | |
11f9eeaf DM |
871 | fpc--; |
872 | goto end; | |
a0d0e21e LW |
873 | } |
874 | } | |
875 | else { | |
f5ada144 | 876 | t = SvPVX(PL_formtarget) + linemark; |
a0d0e21e LW |
877 | lines--; |
878 | } | |
879 | break; | |
880 | ||
4a73dc0b | 881 | case FF_MORE: /* replace long end of string with '...' */ |
5a34cab7 NC |
882 | { |
883 | const char *s = chophere; | |
884 | const char *send = item + len; | |
885 | if (chopspace) { | |
af68e756 | 886 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 887 | s++; |
a0d0e21e | 888 | } |
5a34cab7 NC |
889 | if (s < send) { |
890 | char *s1; | |
891 | arg = fieldsize - itemsize; | |
892 | if (arg) { | |
893 | fieldsize -= arg; | |
894 | while (arg-- > 0) | |
895 | *t++ = ' '; | |
896 | } | |
897 | s1 = t - 3; | |
898 | if (strnEQ(s1," ",3)) { | |
899 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
900 | s1--; | |
901 | } | |
902 | *s1++ = '.'; | |
903 | *s1++ = '.'; | |
904 | *s1++ = '.'; | |
a0d0e21e | 905 | } |
5a34cab7 | 906 | break; |
a0d0e21e | 907 | } |
4a73dc0b DM |
908 | |
909 | case FF_END: /* tidy up, then return */ | |
11f9eeaf | 910 | end: |
bf2bec63 | 911 | assert(t < SvPVX_const(PL_formtarget) + SvLEN(PL_formtarget)); |
a0d0e21e | 912 | *t = '\0'; |
b15aece3 | 913 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
914 | if (targ_is_utf8) |
915 | SvUTF8_on(PL_formtarget); | |
3280af22 | 916 | FmLINES(PL_formtarget) += lines; |
a0d0e21e | 917 | SP = ORIGMARK; |
11f9eeaf DM |
918 | if (fpc[-1] == FF_BLANK) |
919 | RETURNOP(cLISTOP->op_first); | |
920 | else | |
921 | RETPUSHYES; | |
a0d0e21e LW |
922 | } |
923 | } | |
924 | } | |
925 | ||
926 | PP(pp_grepstart) | |
927 | { | |
20b7effb | 928 | dSP; |
a0d0e21e LW |
929 | SV *src; |
930 | ||
3280af22 | 931 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 932 | (void)POPMARK; |
54310121 | 933 | if (GIMME_V == G_SCALAR) |
6e449a3a | 934 | mXPUSHi(0); |
533c011a | 935 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 936 | } |
3280af22 | 937 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
897d3989 NC |
938 | Perl_pp_pushmark(aTHX); /* push dst */ |
939 | Perl_pp_pushmark(aTHX); /* push src */ | |
d343c3ef | 940 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
941 | |
942 | SAVETMPS; | |
59f00321 RGS |
943 | if (PL_op->op_private & OPpGREP_LEX) |
944 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
945 | else | |
946 | SAVE_DEFSV; | |
d343c3ef | 947 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 948 | SAVEVPTR(PL_curpm); |
a0d0e21e | 949 | |
3280af22 | 950 | src = PL_stack_base[*PL_markstack_ptr]; |
60779a30 | 951 | if (SvPADTMP(src)) { |
a0ed822e FC |
952 | src = PL_stack_base[*PL_markstack_ptr] = sv_mortalcopy(src); |
953 | PL_tmps_floor++; | |
954 | } | |
a0d0e21e | 955 | SvTEMP_off(src); |
59f00321 RGS |
956 | if (PL_op->op_private & OPpGREP_LEX) |
957 | PAD_SVl(PL_op->op_targ) = src; | |
958 | else | |
414bf5ae | 959 | DEFSV_set(src); |
a0d0e21e LW |
960 | |
961 | PUTBACK; | |
533c011a | 962 | if (PL_op->op_type == OP_MAPSTART) |
897d3989 | 963 | Perl_pp_pushmark(aTHX); /* push top */ |
533c011a | 964 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
965 | } |
966 | ||
a0d0e21e LW |
967 | PP(pp_mapwhile) |
968 | { | |
20b7effb | 969 | dSP; |
f54cb97a | 970 | const I32 gimme = GIMME_V; |
544f3153 | 971 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
972 | I32 count; |
973 | I32 shift; | |
974 | SV** src; | |
ac27b0f5 | 975 | SV** dst; |
a0d0e21e | 976 | |
544f3153 | 977 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 978 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
979 | |
980 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 981 | if (items && gimme != G_VOID) { |
544f3153 GS |
982 | /* might need to make room back there first */ |
983 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
984 | /* XXX this implementation is very pessimal because the stack | |
985 | * is repeatedly extended for every set of items. Is possible | |
986 | * to do this without any stack extension or copying at all | |
987 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 988 | * (like foreach does). --gsar */ |
544f3153 GS |
989 | |
990 | /* everything in the stack after the destination list moves | |
991 | * towards the end the stack by the amount of room needed */ | |
992 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
993 | ||
994 | /* items to shift up (accounting for the moved source pointer) */ | |
995 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
996 | |
997 | /* This optimization is by Ben Tilly and it does | |
998 | * things differently from what Sarathy (gsar) | |
999 | * is describing. The downside of this optimization is | |
1000 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1001 | * to the Perl stack, but on the other hand this | |
1002 | * shouldn't be a problem. If Sarathy's idea gets | |
1003 | * implemented, this optimization should become | |
1004 | * irrelevant. --jhi */ | |
1005 | if (shift < count) | |
1006 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1007 | |
924508f0 GS |
1008 | EXTEND(SP,shift); |
1009 | src = SP; | |
1010 | dst = (SP += shift); | |
3280af22 NIS |
1011 | PL_markstack_ptr[-1] += shift; |
1012 | *PL_markstack_ptr += shift; | |
544f3153 | 1013 | while (count--) |
a0d0e21e LW |
1014 | *dst-- = *src--; |
1015 | } | |
544f3153 | 1016 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1017 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 | 1018 | if (gimme == G_ARRAY) { |
b2a2a901 DM |
1019 | /* add returned items to the collection (making mortal copies |
1020 | * if necessary), then clear the current temps stack frame | |
1021 | * *except* for those items. We do this splicing the items | |
1022 | * into the start of the tmps frame (so some items may be on | |
59d53fd6 | 1023 | * the tmps stack twice), then moving PL_tmps_floor above |
b2a2a901 DM |
1024 | * them, then freeing the frame. That way, the only tmps that |
1025 | * accumulate over iterations are the return values for map. | |
1026 | * We have to do to this way so that everything gets correctly | |
1027 | * freed if we die during the map. | |
1028 | */ | |
1029 | I32 tmpsbase; | |
1030 | I32 i = items; | |
1031 | /* make space for the slice */ | |
1032 | EXTEND_MORTAL(items); | |
1033 | tmpsbase = PL_tmps_floor + 1; | |
1034 | Move(PL_tmps_stack + tmpsbase, | |
1035 | PL_tmps_stack + tmpsbase + items, | |
1036 | PL_tmps_ix - PL_tmps_floor, | |
1037 | SV*); | |
1038 | PL_tmps_ix += items; | |
1039 | ||
1040 | while (i-- > 0) { | |
1041 | SV *sv = POPs; | |
1042 | if (!SvTEMP(sv)) | |
1043 | sv = sv_mortalcopy(sv); | |
1044 | *dst-- = sv; | |
1045 | PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv); | |
1046 | } | |
1047 | /* clear the stack frame except for the items */ | |
1048 | PL_tmps_floor += items; | |
1049 | FREETMPS; | |
1050 | /* FREETMPS may have cleared the TEMP flag on some of the items */ | |
1051 | i = items; | |
1052 | while (i-- > 0) | |
1053 | SvTEMP_on(PL_tmps_stack[--tmpsbase]); | |
22023b26 | 1054 | } |
bfed75c6 | 1055 | else { |
22023b26 TP |
1056 | /* scalar context: we don't care about which values map returns |
1057 | * (we use undef here). And so we certainly don't want to do mortal | |
1058 | * copies of meaningless values. */ | |
1059 | while (items-- > 0) { | |
b988aa42 | 1060 | (void)POPs; |
22023b26 TP |
1061 | *dst-- = &PL_sv_undef; |
1062 | } | |
b2a2a901 | 1063 | FREETMPS; |
22023b26 | 1064 | } |
a0d0e21e | 1065 | } |
b2a2a901 DM |
1066 | else { |
1067 | FREETMPS; | |
1068 | } | |
d343c3ef | 1069 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1070 | |
1071 | /* All done yet? */ | |
3280af22 | 1072 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1073 | |
1074 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1075 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1076 | (void)POPMARK; /* pop src */ |
3280af22 | 1077 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1078 | (void)POPMARK; /* pop dst */ |
3280af22 | 1079 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1080 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1081 | if (PL_op->op_private & OPpGREP_LEX) { |
1082 | SV* sv = sv_newmortal(); | |
1083 | sv_setiv(sv, items); | |
1084 | PUSHs(sv); | |
1085 | } | |
1086 | else { | |
1087 | dTARGET; | |
1088 | XPUSHi(items); | |
1089 | } | |
a0d0e21e | 1090 | } |
54310121 | 1091 | else if (gimme == G_ARRAY) |
1092 | SP += items; | |
a0d0e21e LW |
1093 | RETURN; |
1094 | } | |
1095 | else { | |
1096 | SV *src; | |
1097 | ||
d343c3ef | 1098 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1099 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1100 | |
544f3153 | 1101 | /* set $_ to the new source item */ |
3280af22 | 1102 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
60779a30 | 1103 | if (SvPADTMP(src)) { |
60779a30 DM |
1104 | src = sv_mortalcopy(src); |
1105 | } | |
a0d0e21e | 1106 | SvTEMP_off(src); |
59f00321 RGS |
1107 | if (PL_op->op_private & OPpGREP_LEX) |
1108 | PAD_SVl(PL_op->op_targ) = src; | |
1109 | else | |
414bf5ae | 1110 | DEFSV_set(src); |
a0d0e21e LW |
1111 | |
1112 | RETURNOP(cLOGOP->op_other); | |
1113 | } | |
1114 | } | |
1115 | ||
a0d0e21e LW |
1116 | /* Range stuff. */ |
1117 | ||
1118 | PP(pp_range) | |
1119 | { | |
82334630 | 1120 | if (GIMME_V == G_ARRAY) |
1a67a97c | 1121 | return NORMAL; |
538573f7 | 1122 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1123 | return cLOGOP->op_other; |
538573f7 | 1124 | else |
1a67a97c | 1125 | return NORMAL; |
a0d0e21e LW |
1126 | } |
1127 | ||
1128 | PP(pp_flip) | |
1129 | { | |
39644a26 | 1130 | dSP; |
a0d0e21e | 1131 | |
82334630 | 1132 | if (GIMME_V == G_ARRAY) { |
1a67a97c | 1133 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1134 | } |
1135 | else { | |
1136 | dTOPss; | |
44f8325f | 1137 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1138 | int flip = 0; |
790090df | 1139 | |
bfed75c6 | 1140 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1141 | if (GvIO(PL_last_in_gv)) { |
1142 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1143 | } | |
1144 | else { | |
fafc274c | 1145 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1146 | if (gv && GvSV(gv)) |
1147 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1148 | } |
bfed75c6 AL |
1149 | } else { |
1150 | flip = SvTRUE(sv); | |
1151 | } | |
1152 | if (flip) { | |
a0d0e21e | 1153 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1154 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1155 | sv_setiv(targ, 1); |
3e3baf6d | 1156 | SETs(targ); |
a0d0e21e LW |
1157 | RETURN; |
1158 | } | |
1159 | else { | |
1160 | sv_setiv(targ, 0); | |
924508f0 | 1161 | SP--; |
1a67a97c | 1162 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1163 | } |
1164 | } | |
76f68e9b | 1165 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1166 | SETs(targ); |
1167 | RETURN; | |
1168 | } | |
1169 | } | |
1170 | ||
8e9bbdb9 RGS |
1171 | /* This code tries to decide if "$left .. $right" should use the |
1172 | magical string increment, or if the range is numeric (we make | |
1173 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1174 | ||
1175 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1176 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1177 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1178 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1179 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1180 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1181 | |
a0d0e21e LW |
1182 | PP(pp_flop) |
1183 | { | |
20b7effb | 1184 | dSP; |
a0d0e21e | 1185 | |
82334630 | 1186 | if (GIMME_V == G_ARRAY) { |
a0d0e21e | 1187 | dPOPPOPssrl; |
86cb7173 | 1188 | |
5b295bef RD |
1189 | SvGETMAGIC(left); |
1190 | SvGETMAGIC(right); | |
a0d0e21e | 1191 | |
8e9bbdb9 | 1192 | if (RANGE_IS_NUMERIC(left,right)) { |
b262c4c9 | 1193 | IV i, j, n; |
4d91eccc FC |
1194 | if ((SvOK(left) && !SvIOK(left) && SvNV_nomg(left) < IV_MIN) || |
1195 | (SvOK(right) && (SvIOK(right) | |
1196 | ? SvIsUV(right) && SvUV(right) > IV_MAX | |
1197 | : SvNV_nomg(right) > IV_MAX))) | |
d470f89e | 1198 | DIE(aTHX_ "Range iterator outside integer range"); |
f52e41ad | 1199 | i = SvIV_nomg(left); |
b262c4c9 JH |
1200 | j = SvIV_nomg(right); |
1201 | if (j >= i) { | |
1202 | /* Dance carefully around signed max. */ | |
1203 | bool overflow = (i <= 0 && j > SSize_t_MAX + i - 1); | |
1204 | if (!overflow) { | |
1205 | n = j - i + 1; | |
1206 | /* The wraparound of signed integers is undefined | |
1207 | * behavior, but here we aim for count >=1, and | |
1208 | * negative count is just wrong. */ | |
1209 | if (n < 1) | |
1210 | overflow = TRUE; | |
1211 | } | |
1212 | if (overflow) | |
1213 | Perl_croak(aTHX_ "Out of memory during list extend"); | |
1214 | EXTEND_MORTAL(n); | |
1215 | EXTEND(SP, n); | |
bbce6d69 | 1216 | } |
c1ab3db2 | 1217 | else |
b262c4c9 JH |
1218 | n = 0; |
1219 | while (n--) { | |
fc01cab4 | 1220 | SV * const sv = sv_2mortal(newSViv(i)); |
a0d0e21e | 1221 | PUSHs(sv); |
fc01cab4 DM |
1222 | if (n) /* avoid incrementing above IV_MAX */ |
1223 | i++; | |
a0d0e21e LW |
1224 | } |
1225 | } | |
1226 | else { | |
3c323193 FC |
1227 | STRLEN len, llen; |
1228 | const char * const lpv = SvPV_nomg_const(left, llen); | |
f52e41ad | 1229 | const char * const tmps = SvPV_nomg_const(right, len); |
a0d0e21e | 1230 | |
3c323193 | 1231 | SV *sv = newSVpvn_flags(lpv, llen, SvUTF8(left)|SVs_TEMP); |
89ea2908 | 1232 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1233 | XPUSHs(sv); |
b15aece3 | 1234 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1235 | break; |
a0d0e21e LW |
1236 | sv = sv_2mortal(newSVsv(sv)); |
1237 | sv_inc(sv); | |
1238 | } | |
a0d0e21e LW |
1239 | } |
1240 | } | |
1241 | else { | |
1242 | dTOPss; | |
901017d6 | 1243 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1244 | int flop = 0; |
a0d0e21e | 1245 | sv_inc(targ); |
4e3399f9 YST |
1246 | |
1247 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1248 | if (GvIO(PL_last_in_gv)) { | |
1249 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1250 | } | |
1251 | else { | |
fafc274c | 1252 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1253 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1254 | } | |
1255 | } | |
1256 | else { | |
1257 | flop = SvTRUE(sv); | |
1258 | } | |
1259 | ||
1260 | if (flop) { | |
a0d0e21e | 1261 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1262 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1263 | } |
1264 | SETs(targ); | |
1265 | } | |
1266 | ||
1267 | RETURN; | |
1268 | } | |
1269 | ||
1270 | /* Control. */ | |
1271 | ||
27da23d5 | 1272 | static const char * const context_name[] = { |
515afda2 | 1273 | "pseudo-block", |
f31522f3 | 1274 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1275 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1276 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1277 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1278 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1279 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1280 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1281 | "subroutine", |
76753e7f | 1282 | "format", |
515afda2 | 1283 | "eval", |
515afda2 | 1284 | "substitution", |
515afda2 NC |
1285 | }; |
1286 | ||
76e3520e | 1287 | STATIC I32 |
5db1eb8d | 1288 | S_dopoptolabel(pTHX_ const char *label, STRLEN len, U32 flags) |
a0d0e21e | 1289 | { |
eb578fdb | 1290 | I32 i; |
a0d0e21e | 1291 | |
7918f24d NC |
1292 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1293 | ||
a0d0e21e | 1294 | for (i = cxstack_ix; i >= 0; i--) { |
eb578fdb | 1295 | const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1296 | switch (CxTYPE(cx)) { |
a0d0e21e | 1297 | case CXt_SUBST: |
a0d0e21e | 1298 | case CXt_SUB: |
7766f137 | 1299 | case CXt_FORMAT: |
a0d0e21e | 1300 | case CXt_EVAL: |
0a753a76 | 1301 | case CXt_NULL: |
dcbac5bb | 1302 | /* diag_listed_as: Exiting subroutine via %s */ |
a2a5de95 NC |
1303 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1304 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1305 | if (CxTYPE(cx) == CXt_NULL) |
1306 | return -1; | |
1307 | break; | |
c6fdafd0 | 1308 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1309 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1310 | case CXt_LOOP_FOR: |
1311 | case CXt_LOOP_PLAIN: | |
7e8f1eac | 1312 | { |
5db1eb8d BF |
1313 | STRLEN cx_label_len = 0; |
1314 | U32 cx_label_flags = 0; | |
1315 | const char *cx_label = CxLABEL_len_flags(cx, &cx_label_len, &cx_label_flags); | |
1316 | if (!cx_label || !( | |
1317 | ( (cx_label_flags & SVf_UTF8) != (flags & SVf_UTF8) ) ? | |
1318 | (flags & SVf_UTF8) | |
1319 | ? (bytes_cmp_utf8( | |
1320 | (const U8*)cx_label, cx_label_len, | |
1321 | (const U8*)label, len) == 0) | |
1322 | : (bytes_cmp_utf8( | |
1323 | (const U8*)label, len, | |
1324 | (const U8*)cx_label, cx_label_len) == 0) | |
eade7155 BF |
1325 | : (len == cx_label_len && ((cx_label == label) |
1326 | || memEQ(cx_label, label, len))) )) { | |
1c98cc53 | 1327 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1328 | (long)i, cx_label)); |
a0d0e21e LW |
1329 | continue; |
1330 | } | |
1c98cc53 | 1331 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1332 | return i; |
7e8f1eac | 1333 | } |
a0d0e21e LW |
1334 | } |
1335 | } | |
1336 | return i; | |
1337 | } | |
1338 | ||
0d863452 RH |
1339 | |
1340 | ||
e50aee73 | 1341 | I32 |
864dbfa3 | 1342 | Perl_dowantarray(pTHX) |
e50aee73 | 1343 | { |
f54cb97a | 1344 | const I32 gimme = block_gimme(); |
54310121 | 1345 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1346 | } | |
1347 | ||
1348 | I32 | |
864dbfa3 | 1349 | Perl_block_gimme(pTHX) |
54310121 | 1350 | { |
06b5626a | 1351 | const I32 cxix = dopoptosub(cxstack_ix); |
a05700a8 | 1352 | U8 gimme; |
e50aee73 | 1353 | if (cxix < 0) |
46fc3d4c | 1354 | return G_VOID; |
e50aee73 | 1355 | |
a05700a8 DM |
1356 | gimme = (cxstack[cxix].blk_gimme & G_WANT); |
1357 | if (!gimme) | |
1358 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", gimme); | |
1359 | return gimme; | |
e50aee73 AD |
1360 | } |
1361 | ||
a05700a8 | 1362 | |
78f9721b SM |
1363 | I32 |
1364 | Perl_is_lvalue_sub(pTHX) | |
1365 | { | |
06b5626a | 1366 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1367 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1368 | ||
bafb2adc NC |
1369 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1370 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1371 | else |
1372 | return 0; | |
1373 | } | |
1374 | ||
777d9014 FC |
1375 | /* only used by PUSHSUB */ |
1376 | I32 | |
1377 | Perl_was_lvalue_sub(pTHX) | |
1378 | { | |
777d9014 FC |
1379 | const I32 cxix = dopoptosub(cxstack_ix-1); |
1380 | assert(cxix >= 0); /* We should only be called from inside subs */ | |
1381 | ||
1382 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) | |
1383 | return CxLVAL(cxstack + cxix); | |
1384 | else | |
1385 | return 0; | |
1386 | } | |
1387 | ||
76e3520e | 1388 | STATIC I32 |
901017d6 | 1389 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1390 | { |
a0d0e21e | 1391 | I32 i; |
7918f24d NC |
1392 | |
1393 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
81611534 JH |
1394 | #ifndef DEBUGGING |
1395 | PERL_UNUSED_CONTEXT; | |
1396 | #endif | |
7918f24d | 1397 | |
a0d0e21e | 1398 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1399 | const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1400 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1401 | default: |
1402 | continue; | |
a0d0e21e | 1403 | case CXt_SUB: |
5fbe8311 DM |
1404 | /* in sub foo { /(?{...})/ }, foo ends up on the CX stack |
1405 | * twice; the first for the normal foo() call, and the second | |
1406 | * for a faked up re-entry into the sub to execute the | |
1407 | * code block. Hide this faked entry from the world. */ | |
1408 | if (cx->cx_type & CXp_SUB_RE_FAKE) | |
1409 | continue; | |
c67159e1 | 1410 | /* FALLTHROUGH */ |
5fbe8311 | 1411 | case CXt_EVAL: |
7766f137 | 1412 | case CXt_FORMAT: |
1c98cc53 | 1413 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1414 | return i; |
1415 | } | |
1416 | } | |
1417 | return i; | |
1418 | } | |
1419 | ||
76e3520e | 1420 | STATIC I32 |
cea2e8a9 | 1421 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e LW |
1422 | { |
1423 | I32 i; | |
a0d0e21e | 1424 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1425 | const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1426 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1427 | default: |
1428 | continue; | |
1429 | case CXt_EVAL: | |
1c98cc53 | 1430 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1431 | return i; |
1432 | } | |
1433 | } | |
1434 | return i; | |
1435 | } | |
1436 | ||
76e3520e | 1437 | STATIC I32 |
cea2e8a9 | 1438 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e LW |
1439 | { |
1440 | I32 i; | |
a0d0e21e | 1441 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1442 | const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1443 | switch (CxTYPE(cx)) { |
a0d0e21e | 1444 | case CXt_SUBST: |
a0d0e21e | 1445 | case CXt_SUB: |
7766f137 | 1446 | case CXt_FORMAT: |
a0d0e21e | 1447 | case CXt_EVAL: |
0a753a76 | 1448 | case CXt_NULL: |
dcbac5bb | 1449 | /* diag_listed_as: Exiting subroutine via %s */ |
a2a5de95 NC |
1450 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1451 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1452 | if ((CxTYPE(cx)) == CXt_NULL) |
1453 | return -1; | |
1454 | break; | |
c6fdafd0 | 1455 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1456 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1457 | case CXt_LOOP_FOR: |
1458 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1459 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1460 | return i; |
1461 | } | |
1462 | } | |
1463 | return i; | |
1464 | } | |
1465 | ||
0d863452 RH |
1466 | STATIC I32 |
1467 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1468 | { | |
1469 | I32 i; | |
1470 | for (i = startingblock; i >= 0; i--) { | |
eb578fdb | 1471 | const PERL_CONTEXT *cx = &cxstack[i]; |
0d863452 RH |
1472 | switch (CxTYPE(cx)) { |
1473 | default: | |
1474 | continue; | |
1475 | case CXt_GIVEN: | |
1c98cc53 | 1476 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1477 | return i; |
3b719c58 NC |
1478 | case CXt_LOOP_PLAIN: |
1479 | assert(!CxFOREACHDEF(cx)); | |
1480 | break; | |
c6fdafd0 | 1481 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1482 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1483 | case CXt_LOOP_FOR: |
0d863452 | 1484 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1485 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1486 | return i; |
1487 | } | |
1488 | } | |
1489 | } | |
1490 | return i; | |
1491 | } | |
1492 | ||
1493 | STATIC I32 | |
1494 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1495 | { | |
1496 | I32 i; | |
1497 | for (i = startingblock; i >= 0; i--) { | |
eb578fdb | 1498 | const PERL_CONTEXT *cx = &cxstack[i]; |
0d863452 RH |
1499 | switch (CxTYPE(cx)) { |
1500 | default: | |
1501 | continue; | |
1502 | case CXt_WHEN: | |
1c98cc53 | 1503 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1504 | return i; |
1505 | } | |
1506 | } | |
1507 | return i; | |
1508 | } | |
1509 | ||
a0d0e21e | 1510 | void |
864dbfa3 | 1511 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1512 | { |
a0d0e21e LW |
1513 | I32 optype; |
1514 | ||
f144f1e3 DM |
1515 | if (!PL_curstackinfo) /* can happen if die during thread cloning */ |
1516 | return; | |
1517 | ||
a0d0e21e | 1518 | while (cxstack_ix > cxix) { |
b0d9ce38 | 1519 | SV *sv; |
eb578fdb | 1520 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1521 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1522 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1523 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1524 | case CXt_SUBST: |
1525 | POPSUBST(cx); | |
1526 | continue; /* not break */ | |
a0d0e21e | 1527 | case CXt_SUB: |
b0d9ce38 GS |
1528 | POPSUB(cx,sv); |
1529 | LEAVESUB(sv); | |
a0d0e21e LW |
1530 | break; |
1531 | case CXt_EVAL: | |
1532 | POPEVAL(cx); | |
1533 | break; | |
c6fdafd0 | 1534 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1535 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1536 | case CXt_LOOP_FOR: |
1537 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1538 | POPLOOP(cx); |
1539 | break; | |
0a753a76 | 1540 | case CXt_NULL: |
a0d0e21e | 1541 | break; |
7766f137 GS |
1542 | case CXt_FORMAT: |
1543 | POPFORMAT(cx); | |
1544 | break; | |
a0d0e21e | 1545 | } |
c90c0ff4 | 1546 | cxstack_ix--; |
a0d0e21e | 1547 | } |
1b6737cc | 1548 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1549 | } |
1550 | ||
5a844595 GS |
1551 | void |
1552 | Perl_qerror(pTHX_ SV *err) | |
1553 | { | |
7918f24d NC |
1554 | PERL_ARGS_ASSERT_QERROR; |
1555 | ||
6b2fb389 DM |
1556 | if (PL_in_eval) { |
1557 | if (PL_in_eval & EVAL_KEEPERR) { | |
ecad31f0 BF |
1558 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %"SVf, |
1559 | SVfARG(err)); | |
6b2fb389 DM |
1560 | } |
1561 | else | |
1562 | sv_catsv(ERRSV, err); | |
1563 | } | |
5a844595 GS |
1564 | else if (PL_errors) |
1565 | sv_catsv(PL_errors, err); | |
1566 | else | |
be2597df | 1567 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1568 | if (PL_parser) |
1569 | ++PL_parser->error_count; | |
5a844595 GS |
1570 | } |
1571 | ||
bb4c52e0 | 1572 | void |
c5df3096 | 1573 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1574 | { |
c5df3096 | 1575 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1576 | U8 in_eval = PL_in_eval; |
c5df3096 | 1577 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1578 | |
96d9b9cd | 1579 | if (in_eval) { |
a0d0e21e | 1580 | I32 cxix; |
a0d0e21e | 1581 | I32 gimme; |
a0d0e21e | 1582 | |
22a30693 Z |
1583 | /* |
1584 | * Historically, perl used to set ERRSV ($@) early in the die | |
1585 | * process and rely on it not getting clobbered during unwinding. | |
1586 | * That sucked, because it was liable to get clobbered, so the | |
1587 | * setting of ERRSV used to emit the exception from eval{} has | |
1588 | * been moved to much later, after unwinding (see just before | |
1589 | * JMPENV_JUMP below). However, some modules were relying on the | |
1590 | * early setting, by examining $@ during unwinding to use it as | |
1591 | * a flag indicating whether the current unwinding was caused by | |
1592 | * an exception. It was never a reliable flag for that purpose, | |
1593 | * being totally open to false positives even without actual | |
1594 | * clobberage, but was useful enough for production code to | |
1595 | * semantically rely on it. | |
1596 | * | |
1597 | * We'd like to have a proper introspective interface that | |
1598 | * explicitly describes the reason for whatever unwinding | |
1599 | * operations are currently in progress, so that those modules | |
1600 | * work reliably and $@ isn't further overloaded. But we don't | |
1601 | * have one yet. In its absence, as a stopgap measure, ERRSV is | |
1602 | * now *additionally* set here, before unwinding, to serve as the | |
1603 | * (unreliable) flag that it used to. | |
1604 | * | |
1605 | * This behaviour is temporary, and should be removed when a | |
1606 | * proper way to detect exceptional unwinding has been developed. | |
1607 | * As of 2010-12, the authors of modules relying on the hack | |
1608 | * are aware of the issue, because the modules failed on | |
1609 | * perls 5.13.{1..7} which had late setting of $@ without this | |
1610 | * early-setting hack. | |
1611 | */ | |
1612 | if (!(in_eval & EVAL_KEEPERR)) { | |
1613 | SvTEMP_off(exceptsv); | |
1614 | sv_setsv(ERRSV, exceptsv); | |
1615 | } | |
1616 | ||
fc941f37 Z |
1617 | if (in_eval & EVAL_KEEPERR) { |
1618 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %"SVf, | |
1619 | SVfARG(exceptsv)); | |
1620 | } | |
1621 | ||
5a844595 GS |
1622 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1623 | && PL_curstackinfo->si_prev) | |
1624 | { | |
bac4b2ad | 1625 | dounwind(-1); |
d3acc0f7 | 1626 | POPSTACK; |
bac4b2ad | 1627 | } |
e336de0d | 1628 | |
a0d0e21e LW |
1629 | if (cxix >= 0) { |
1630 | I32 optype; | |
b6494f15 | 1631 | SV *namesv; |
eb578fdb | 1632 | PERL_CONTEXT *cx; |
901017d6 | 1633 | SV **newsp; |
e32ff4e1 | 1634 | #ifdef DEBUGGING |
8f89e5a9 | 1635 | COP *oldcop; |
20189068 | 1636 | #endif |
8f89e5a9 Z |
1637 | JMPENV *restartjmpenv; |
1638 | OP *restartop; | |
a0d0e21e LW |
1639 | |
1640 | if (cxix < cxstack_ix) | |
1641 | dounwind(cxix); | |
1642 | ||
3280af22 | 1643 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1644 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1645 | STRLEN msglen; |
96d9b9cd | 1646 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1647 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1648 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1649 | my_exit(1); |
1650 | } | |
1651 | POPEVAL(cx); | |
b6494f15 | 1652 | namesv = cx->blk_eval.old_namesv; |
e32ff4e1 | 1653 | #ifdef DEBUGGING |
8f89e5a9 | 1654 | oldcop = cx->blk_oldcop; |
20189068 | 1655 | #endif |
8f89e5a9 Z |
1656 | restartjmpenv = cx->blk_eval.cur_top_env; |
1657 | restartop = cx->blk_eval.retop; | |
a0d0e21e LW |
1658 | |
1659 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1660 | *++newsp = &PL_sv_undef; |
1661 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1662 | |
1663 | LEAVE; | |
748a9306 | 1664 | |
7a2e2cd6 | 1665 | if (optype == OP_REQUIRE) { |
e32ff4e1 | 1666 | assert (PL_curcop == oldcop); |
b6494f15 | 1667 | (void)hv_store(GvHVn(PL_incgv), |
ecad31f0 | 1668 | SvPVX_const(namesv), |
c60dbbc3 | 1669 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
27bcc0a7 | 1670 | &PL_sv_undef, 0); |
27e90453 DM |
1671 | /* note that unlike pp_entereval, pp_require isn't |
1672 | * supposed to trap errors. So now that we've popped the | |
1673 | * EVAL that pp_require pushed, and processed the error | |
1674 | * message, rethrow the error */ | |
ecad31f0 BF |
1675 | Perl_croak(aTHX_ "%"SVf"Compilation failed in require", |
1676 | SVfARG(exceptsv ? exceptsv : newSVpvs_flags("Unknown error\n", | |
1677 | SVs_TEMP))); | |
7a2e2cd6 | 1678 | } |
fc941f37 | 1679 | if (!(in_eval & EVAL_KEEPERR)) |
96d9b9cd | 1680 | sv_setsv(ERRSV, exceptsv); |
8f89e5a9 Z |
1681 | PL_restartjmpenv = restartjmpenv; |
1682 | PL_restartop = restartop; | |
bb4c52e0 | 1683 | JMPENV_JUMP(3); |
e5964223 | 1684 | NOT_REACHED; /* NOTREACHED */ |
a0d0e21e LW |
1685 | } |
1686 | } | |
87582a92 | 1687 | |
96d9b9cd | 1688 | write_to_stderr(exceptsv); |
f86702cc | 1689 | my_failure_exit(); |
e5964223 | 1690 | NOT_REACHED; /* NOTREACHED */ |
a0d0e21e LW |
1691 | } |
1692 | ||
1693 | PP(pp_xor) | |
1694 | { | |
20b7effb | 1695 | dSP; dPOPTOPssrl; |
a0d0e21e LW |
1696 | if (SvTRUE(left) != SvTRUE(right)) |
1697 | RETSETYES; | |
1698 | else | |
1699 | RETSETNO; | |
1700 | } | |
1701 | ||
8dff4fc5 | 1702 | /* |
dcccc8ff KW |
1703 | |
1704 | =head1 CV Manipulation Functions | |
1705 | ||
8dff4fc5 BM |
1706 | =for apidoc caller_cx |
1707 | ||
72d33970 | 1708 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The |
8dff4fc5 | 1709 | returned C<PERL_CONTEXT> structure can be interrogated to find all the |
72d33970 | 1710 | information returned to Perl by C<caller>. Note that XSUBs don't get a |
8dff4fc5 BM |
1711 | stack frame, so C<caller_cx(0, NULL)> will return information for the |
1712 | immediately-surrounding Perl code. | |
1713 | ||
1714 | This function skips over the automatic calls to C<&DB::sub> made on the | |
72d33970 | 1715 | behalf of the debugger. If the stack frame requested was a sub called by |
8dff4fc5 BM |
1716 | C<DB::sub>, the return value will be the frame for the call to |
1717 | C<DB::sub>, since that has the correct line number/etc. for the call | |
72d33970 | 1718 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the |
8dff4fc5 BM |
1719 | frame for the sub call itself. |
1720 | ||
1721 | =cut | |
1722 | */ | |
1723 | ||
1724 | const PERL_CONTEXT * | |
1725 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1726 | { |
eb578fdb KW |
1727 | I32 cxix = dopoptosub(cxstack_ix); |
1728 | const PERL_CONTEXT *cx; | |
1729 | const PERL_CONTEXT *ccstack = cxstack; | |
901017d6 | 1730 | const PERL_SI *top_si = PL_curstackinfo; |
27d41816 | 1731 | |
a0d0e21e | 1732 | for (;;) { |
2c375eb9 GS |
1733 | /* we may be in a higher stacklevel, so dig down deeper */ |
1734 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1735 | top_si = top_si->si_prev; | |
1736 | ccstack = top_si->si_cxstack; | |
1737 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1738 | } | |
8dff4fc5 BM |
1739 | if (cxix < 0) |
1740 | return NULL; | |
f2a7f298 DG |
1741 | /* caller() should not report the automatic calls to &DB::sub */ |
1742 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1743 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1744 | count++; |
1745 | if (!count--) | |
1746 | break; | |
2c375eb9 | 1747 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1748 | } |
2c375eb9 GS |
1749 | |
1750 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1751 | if (dbcxp) *dbcxp = cx; |
1752 | ||
7766f137 | 1753 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1754 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1755 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1756 | field below is defined for any cx. */ |
f2a7f298 DG |
1757 | /* caller() should not report the automatic calls to &DB::sub */ |
1758 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1759 | cx = &ccstack[dbcxix]; |
06a5b730 | 1760 | } |
1761 | ||
8dff4fc5 BM |
1762 | return cx; |
1763 | } | |
1764 | ||
1765 | PP(pp_caller) | |
1766 | { | |
8dff4fc5 | 1767 | dSP; |
eb578fdb | 1768 | const PERL_CONTEXT *cx; |
8dff4fc5 | 1769 | const PERL_CONTEXT *dbcx; |
48ebc325 | 1770 | I32 gimme = GIMME_V; |
d527ce7c | 1771 | const HEK *stash_hek; |
8dff4fc5 | 1772 | I32 count = 0; |
ce0b554b | 1773 | bool has_arg = MAXARG && TOPs; |
25502127 | 1774 | const COP *lcop; |
8dff4fc5 | 1775 | |
ce0b554b FC |
1776 | if (MAXARG) { |
1777 | if (has_arg) | |
8dff4fc5 | 1778 | count = POPi; |
ce0b554b FC |
1779 | else (void)POPs; |
1780 | } | |
8dff4fc5 | 1781 | |
ce0b554b | 1782 | cx = caller_cx(count + !!(PL_op->op_private & OPpOFFBYONE), &dbcx); |
8dff4fc5 | 1783 | if (!cx) { |
48ebc325 | 1784 | if (gimme != G_ARRAY) { |
8dff4fc5 BM |
1785 | EXTEND(SP, 1); |
1786 | RETPUSHUNDEF; | |
1787 | } | |
1788 | RETURN; | |
1789 | } | |
1790 | ||
fb55feef | 1791 | DEBUG_CX("CALLER"); |
d0279c7c | 1792 | assert(CopSTASH(cx->blk_oldcop)); |
e7886211 FC |
1793 | stash_hek = SvTYPE(CopSTASH(cx->blk_oldcop)) == SVt_PVHV |
1794 | ? HvNAME_HEK((HV*)CopSTASH(cx->blk_oldcop)) | |
1795 | : NULL; | |
48ebc325 | 1796 | if (gimme != G_ARRAY) { |
27d41816 | 1797 | EXTEND(SP, 1); |
d527ce7c | 1798 | if (!stash_hek) |
3280af22 | 1799 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1800 | else { |
1801 | dTARGET; | |
d527ce7c | 1802 | sv_sethek(TARG, stash_hek); |
49d8d3a1 MB |
1803 | PUSHs(TARG); |
1804 | } | |
a0d0e21e LW |
1805 | RETURN; |
1806 | } | |
a0d0e21e | 1807 | |
b3ca2e83 | 1808 | EXTEND(SP, 11); |
27d41816 | 1809 | |
d527ce7c | 1810 | if (!stash_hek) |
3280af22 | 1811 | PUSHs(&PL_sv_undef); |
d527ce7c BF |
1812 | else { |
1813 | dTARGET; | |
1814 | sv_sethek(TARG, stash_hek); | |
1815 | PUSHTARG; | |
1816 | } | |
6e449a3a | 1817 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); |
e6dae479 | 1818 | lcop = closest_cop(cx->blk_oldcop, OpSIBLING(cx->blk_oldcop), |
25502127 FC |
1819 | cx->blk_sub.retop, TRUE); |
1820 | if (!lcop) | |
1821 | lcop = cx->blk_oldcop; | |
1822 | mPUSHi((I32)CopLINE(lcop)); | |
ce0b554b | 1823 | if (!has_arg) |
a0d0e21e | 1824 | RETURN; |
7766f137 GS |
1825 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1826 | /* So is ccstack[dbcxix]. */ | |
a5f47741 | 1827 | if (CvHASGV(dbcx->blk_sub.cv)) { |
ecf05a58 | 1828 | PUSHs(cv_name(dbcx->blk_sub.cv, 0, 0)); |
bf38a478 | 1829 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1830 | } |
1831 | else { | |
84bafc02 | 1832 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1833 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1834 | } |
a0d0e21e LW |
1835 | } |
1836 | else { | |
84bafc02 | 1837 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1838 | mPUSHi(0); |
a0d0e21e | 1839 | } |
54310121 | 1840 | gimme = (I32)cx->blk_gimme; |
1841 | if (gimme == G_VOID) | |
3280af22 | 1842 | PUSHs(&PL_sv_undef); |
54310121 | 1843 | else |
98625aca | 1844 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1845 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1846 | /* eval STRING */ |
85a64632 | 1847 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
78beb4ca TC |
1848 | SV *cur_text = cx->blk_eval.cur_text; |
1849 | if (SvCUR(cur_text) >= 2) { | |
1850 | PUSHs(newSVpvn_flags(SvPVX(cur_text), SvCUR(cur_text)-2, | |
1851 | SvUTF8(cur_text)|SVs_TEMP)); | |
1852 | } | |
1853 | else { | |
1854 | /* I think this is will always be "", but be sure */ | |
1855 | PUSHs(sv_2mortal(newSVsv(cur_text))); | |
1856 | } | |
1857 | ||
3280af22 | 1858 | PUSHs(&PL_sv_no); |
0f79a09d | 1859 | } |
811a4de9 | 1860 | /* require */ |
0f79a09d | 1861 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1862 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1863 | PUSHs(&PL_sv_yes); |
06a5b730 | 1864 | } |
811a4de9 GS |
1865 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1866 | else { | |
1867 | PUSHs(&PL_sv_undef); | |
1868 | PUSHs(&PL_sv_undef); | |
1869 | } | |
4633a7c4 | 1870 | } |
a682de96 GS |
1871 | else { |
1872 | PUSHs(&PL_sv_undef); | |
1873 | PUSHs(&PL_sv_undef); | |
1874 | } | |
bafb2adc | 1875 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1876 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1877 | { |
66a1b24b | 1878 | AV * const ary = cx->blk_sub.argarray; |
c70927a6 | 1879 | const SSize_t off = AvARRAY(ary) - AvALLOC(ary); |
a0d0e21e | 1880 | |
e1a80902 | 1881 | Perl_init_dbargs(aTHX); |
a0d0e21e | 1882 | |
3280af22 NIS |
1883 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1884 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1885 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1886 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1887 | } |
6e449a3a | 1888 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1889 | { |
1890 | SV * mask ; | |
72dc9ed5 | 1891 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1892 | |
f07626ad | 1893 | if (old_warnings == pWARN_NONE) |
e476b1b5 | 1894 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
f07626ad FC |
1895 | else if (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0) |
1896 | mask = &PL_sv_undef ; | |
ac27b0f5 | 1897 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1898 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1899 | /* Get the bit mask for $warnings::Bits{all}, because | |
1900 | * it could have been extended by warnings::register */ | |
1901 | SV **bits_all; | |
6673a63c | 1902 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1903 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1904 | mask = newSVsv(*bits_all); |
1905 | } | |
1906 | else { | |
1907 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1908 | } | |
1909 | } | |
e476b1b5 | 1910 | else |
72dc9ed5 | 1911 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1912 | mPUSHs(mask); |
e476b1b5 | 1913 | } |
b3ca2e83 | 1914 | |
c28fe1ec | 1915 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
20439bc7 | 1916 | sv_2mortal(newRV_noinc(MUTABLE_SV(cop_hints_2hv(cx->blk_oldcop, 0)))) |
b3ca2e83 | 1917 | : &PL_sv_undef); |
a0d0e21e LW |
1918 | RETURN; |
1919 | } | |
1920 | ||
a0d0e21e LW |
1921 | PP(pp_reset) |
1922 | { | |
39644a26 | 1923 | dSP; |
ca826051 FC |
1924 | const char * tmps; |
1925 | STRLEN len = 0; | |
1926 | if (MAXARG < 1 || (!TOPs && !POPs)) | |
1927 | tmps = NULL, len = 0; | |
1928 | else | |
1929 | tmps = SvPVx_const(POPs, len); | |
1930 | sv_resetpvn(tmps, len, CopSTASH(PL_curcop)); | |
3280af22 | 1931 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1932 | RETURN; |
1933 | } | |
1934 | ||
dd2155a4 DM |
1935 | /* like pp_nextstate, but used instead when the debugger is active */ |
1936 | ||
a0d0e21e LW |
1937 | PP(pp_dbstate) |
1938 | { | |
533c011a | 1939 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1940 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1941 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1942 | FREETMPS; |
1943 | ||
f410a211 NC |
1944 | PERL_ASYNC_CHECK(); |
1945 | ||
88df5f01 | 1946 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
a6d69523 | 1947 | || PL_DBsingle_iv || PL_DBsignal_iv || PL_DBtrace_iv) |
a0d0e21e | 1948 | { |
39644a26 | 1949 | dSP; |
eb578fdb | 1950 | PERL_CONTEXT *cx; |
f54cb97a | 1951 | const I32 gimme = G_ARRAY; |
eb160463 | 1952 | U8 hasargs; |
0bd48802 | 1953 | GV * const gv = PL_DBgv; |
432d4561 JL |
1954 | CV * cv = NULL; |
1955 | ||
1956 | if (gv && isGV_with_GP(gv)) | |
1957 | cv = GvCV(gv); | |
a0d0e21e | 1958 | |
c2cb6f77 | 1959 | if (!cv || (!CvROOT(cv) && !CvXSUB(cv))) |
cea2e8a9 | 1960 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1961 | |
aea4f609 DM |
1962 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1963 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1964 | return NORMAL; |
748a9306 | 1965 | |
a57c6685 | 1966 | ENTER; |
4633a7c4 LW |
1967 | SAVETMPS; |
1968 | ||
3280af22 | 1969 | SAVEI32(PL_debug); |
55497cff | 1970 | SAVESTACK_POS(); |
3280af22 | 1971 | PL_debug = 0; |
748a9306 | 1972 | hasargs = 0; |
924508f0 | 1973 | SPAGAIN; |
748a9306 | 1974 | |
aed2304a | 1975 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1976 | PUSHMARK(SP); |
1977 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
c127bd3a | 1978 | FREETMPS; |
a57c6685 | 1979 | LEAVE; |
c127bd3a SF |
1980 | return NORMAL; |
1981 | } | |
1982 | else { | |
1983 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1984 | PUSHSUB_DB(cx); | |
1985 | cx->blk_sub.retop = PL_op->op_next; | |
1986 | CvDEPTH(cv)++; | |
9d976ff5 FC |
1987 | if (CvDEPTH(cv) >= 2) { |
1988 | PERL_STACK_OVERFLOW_CHECK(); | |
1989 | pad_push(CvPADLIST(cv), CvDEPTH(cv)); | |
1990 | } | |
c127bd3a | 1991 | SAVECOMPPAD(); |
9d976ff5 | 1992 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv)); |
c127bd3a SF |
1993 | RETURNOP(CvSTART(cv)); |
1994 | } | |
a0d0e21e LW |
1995 | } |
1996 | else | |
1997 | return NORMAL; | |
1998 | } | |
1999 | ||
2fc507dc FC |
2000 | /* S_leave_common: Common code that many functions in this file use on |
2001 | scope exit. */ | |
2002 | ||
2ec7f6f2 FC |
2003 | /* SVs on the stack that have any of the flags passed in are left as is. |
2004 | Other SVs are protected via the mortals stack if lvalue is true, and | |
2fc507dc FC |
2005 | copied otherwise. |
2006 | ||
2007 | Also, taintedness is cleared. | |
2008 | */ | |
2ec7f6f2 | 2009 | |
b9d76716 | 2010 | STATIC SV ** |
2fc507dc | 2011 | S_leave_common(pTHX_ SV **newsp, SV **sp, SV **mark, I32 gimme, |
2ec7f6f2 | 2012 | U32 flags, bool lvalue) |
b9d76716 | 2013 | { |
9a214eec | 2014 | bool padtmp = 0; |
2fc507dc | 2015 | PERL_ARGS_ASSERT_LEAVE_COMMON; |
b9d76716 | 2016 | |
80dd201b | 2017 | TAINT_NOT; |
9a214eec DM |
2018 | if (flags & SVs_PADTMP) { |
2019 | flags &= ~SVs_PADTMP; | |
2020 | padtmp = 1; | |
2021 | } | |
b9d76716 VP |
2022 | if (gimme == G_SCALAR) { |
2023 | if (MARK < SP) | |
9a214eec | 2024 | *++newsp = ((SvFLAGS(*SP) & flags) || (padtmp && SvPADTMP(*SP))) |
2ec7f6f2 FC |
2025 | ? *SP |
2026 | : lvalue | |
2027 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*SP)) | |
2028 | : sv_mortalcopy(*SP); | |
b9d76716 VP |
2029 | else { |
2030 | /* MEXTEND() only updates MARK, so reuse it instead of newsp. */ | |
2031 | MARK = newsp; | |
2032 | MEXTEND(MARK, 1); | |
2033 | *++MARK = &PL_sv_undef; | |
2034 | return MARK; | |
2035 | } | |
2036 | } | |
2037 | else if (gimme == G_ARRAY) { | |
2038 | /* in case LEAVE wipes old return values */ | |
2039 | while (++MARK <= SP) { | |
9a214eec | 2040 | if ((SvFLAGS(*MARK) & flags) || (padtmp && SvPADTMP(*MARK))) |
b9d76716 VP |
2041 | *++newsp = *MARK; |
2042 | else { | |
2ec7f6f2 FC |
2043 | *++newsp = lvalue |
2044 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)) | |
2045 | : sv_mortalcopy(*MARK); | |
b9d76716 VP |
2046 | TAINT_NOT; /* Each item is independent */ |
2047 | } | |
2048 | } | |
2049 | /* When this function was called with MARK == newsp, we reach this | |
2050 | * point with SP == newsp. */ | |
2051 | } | |
2052 | ||
2053 | return newsp; | |
2054 | } | |
2055 | ||
2b9a6457 VP |
2056 | PP(pp_enter) |
2057 | { | |
20b7effb | 2058 | dSP; |
eb578fdb | 2059 | PERL_CONTEXT *cx; |
7c2d9d03 | 2060 | I32 gimme = GIMME_V; |
2b9a6457 VP |
2061 | |
2062 | ENTER_with_name("block"); | |
2063 | ||
2064 | SAVETMPS; | |
2065 | PUSHBLOCK(cx, CXt_BLOCK, SP); | |
2066 | ||
2067 | RETURN; | |
2068 | } | |
2069 | ||
2070 | PP(pp_leave) | |
2071 | { | |
20b7effb | 2072 | dSP; |
eb578fdb | 2073 | PERL_CONTEXT *cx; |
2b9a6457 VP |
2074 | SV **newsp; |
2075 | PMOP *newpm; | |
2076 | I32 gimme; | |
2077 | ||
2078 | if (PL_op->op_flags & OPf_SPECIAL) { | |
2079 | cx = &cxstack[cxstack_ix]; | |
2080 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ | |
2081 | } | |
2082 | ||
2083 | POPBLOCK(cx,newpm); | |
2084 | ||
2085 | gimme = OP_GIMME(PL_op, (cxstack_ix >= 0) ? gimme : G_SCALAR); | |
2086 | ||
2fc507dc | 2087 | SP = leave_common(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP, |
2ec7f6f2 | 2088 | PL_op->op_private & OPpLVALUE); |
2b9a6457 VP |
2089 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
2090 | ||
2091 | LEAVE_with_name("block"); | |
2092 | ||
2093 | RETURN; | |
2094 | } | |
2095 | ||
eaa9f768 JH |
2096 | static bool |
2097 | S_outside_integer(pTHX_ SV *sv) | |
2098 | { | |
2099 | if (SvOK(sv)) { | |
2100 | const NV nv = SvNV_nomg(sv); | |
415b66b2 JH |
2101 | if (Perl_isinfnan(nv)) |
2102 | return TRUE; | |
eaa9f768 JH |
2103 | #ifdef NV_PRESERVES_UV |
2104 | if (nv < (NV)IV_MIN || nv > (NV)IV_MAX) | |
2105 | return TRUE; | |
2106 | #else | |
2107 | if (nv <= (NV)IV_MIN) | |
2108 | return TRUE; | |
2109 | if ((nv > 0) && | |
2110 | ((nv > (NV)UV_MAX || | |
2111 | SvUV_nomg(sv) > (UV)IV_MAX))) | |
2112 | return TRUE; | |
2113 | #endif | |
2114 | } | |
2115 | return FALSE; | |
2116 | } | |
2117 | ||
a0d0e21e LW |
2118 | PP(pp_enteriter) |
2119 | { | |
20b7effb | 2120 | dSP; dMARK; |
eb578fdb | 2121 | PERL_CONTEXT *cx; |
f54cb97a | 2122 | const I32 gimme = GIMME_V; |
df530c37 | 2123 | void *itervar; /* location of the iteration variable */ |
840fe433 | 2124 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 2125 | |
d343c3ef | 2126 | ENTER_with_name("loop1"); |
4633a7c4 LW |
2127 | SAVETMPS; |
2128 | ||
aafca525 DM |
2129 | if (PL_op->op_targ) { /* "my" variable */ |
2130 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
2131 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
2132 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
2133 | SVs_PADSTALE, SVs_PADSTALE); | |
2134 | } | |
09edbca0 | 2135 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 2136 | #ifdef USE_ITHREADS |
df530c37 | 2137 | itervar = PL_comppad; |
89e00a7c | 2138 | #else |
aafca525 | 2139 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 2140 | #endif |
54b9620d | 2141 | } |
d39c26a6 | 2142 | else if (LIKELY(isGV(TOPs))) { /* symbol table variable */ |
159b6efe | 2143 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
2144 | SV** svp = &GvSV(gv); |
2145 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 2146 | *svp = newSV(0); |
df530c37 | 2147 | itervar = (void *)gv; |
c997e362 | 2148 | save_aliased_sv(gv); |
54b9620d | 2149 | } |
d39c26a6 FC |
2150 | else { |
2151 | SV * const sv = POPs; | |
2152 | assert(SvTYPE(sv) == SVt_PVMG); | |
2153 | assert(SvMAGIC(sv)); | |
2154 | assert(SvMAGIC(sv)->mg_type == PERL_MAGIC_lvref); | |
2155 | itervar = (void *)sv; | |
2156 | cxtype |= CXp_FOR_LVREF; | |
2157 | } | |
4633a7c4 | 2158 | |
0d863452 RH |
2159 | if (PL_op->op_private & OPpITER_DEF) |
2160 | cxtype |= CXp_FOR_DEF; | |
2161 | ||
d343c3ef | 2162 | ENTER_with_name("loop2"); |
a0d0e21e | 2163 | |
7766f137 | 2164 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 2165 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 2166 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
2167 | SV *maybe_ary = POPs; |
2168 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 2169 | dPOPss; |
d01136d6 | 2170 | SV * const right = maybe_ary; |
d39c26a6 FC |
2171 | if (UNLIKELY(cxtype & CXp_FOR_LVREF)) |
2172 | DIE(aTHX_ "Assigned value is not a reference"); | |
984a4bea RD |
2173 | SvGETMAGIC(sv); |
2174 | SvGETMAGIC(right); | |
4fe3f0fa | 2175 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2176 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2177 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2178 | /* Make sure that no-one re-orders cop.h and breaks our | |
2179 | assumptions */ | |
2180 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
eaa9f768 JH |
2181 | if (S_outside_integer(aTHX_ sv) || |
2182 | S_outside_integer(aTHX_ right)) | |
076d9a11 | 2183 | DIE(aTHX_ "Range iterator outside integer range"); |
f52e41ad FC |
2184 | cx->blk_loop.state_u.lazyiv.cur = SvIV_nomg(sv); |
2185 | cx->blk_loop.state_u.lazyiv.end = SvIV_nomg(right); | |
d4665a05 DM |
2186 | #ifdef DEBUGGING |
2187 | /* for correct -Dstv display */ | |
2188 | cx->blk_oldsp = sp - PL_stack_base; | |
2189 | #endif | |
89ea2908 | 2190 | } |
3f63a782 | 2191 | else { |
d01136d6 BS |
2192 | cx->cx_type &= ~CXTYPEMASK; |
2193 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2194 | /* Make sure that no-one re-orders cop.h and breaks our | |
2195 | assumptions */ | |
2196 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2197 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2198 | cx->blk_loop.state_u.lazysv.end = right; | |
2199 | SvREFCNT_inc(right); | |
2200 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2201 | /* This will do the upgrade to SVt_PV, and warn if the value |
2202 | is uninitialised. */ | |
10516c54 | 2203 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2204 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2205 | to replace !SvOK() with a pointer to "". */ | |
2206 | if (!SvOK(right)) { | |
2207 | SvREFCNT_dec(right); | |
d01136d6 | 2208 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2209 | } |
3f63a782 | 2210 | } |
89ea2908 | 2211 | } |
d01136d6 | 2212 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2213 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2214 | SvREFCNT_inc(maybe_ary); |
2215 | cx->blk_loop.state_u.ary.ix = | |
2216 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2217 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2218 | -1; | |
ef3e5ea9 | 2219 | } |
89ea2908 | 2220 | } |
d01136d6 BS |
2221 | else { /* iterating over items on the stack */ |
2222 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2223 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2224 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2225 | } |
2226 | else { | |
d01136d6 | 2227 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2228 | } |
4633a7c4 | 2229 | } |
a0d0e21e LW |
2230 | |
2231 | RETURN; | |
2232 | } | |
2233 | ||
2234 | PP(pp_enterloop) | |
2235 | { | |
20b7effb | 2236 | dSP; |
eb578fdb | 2237 | PERL_CONTEXT *cx; |
f54cb97a | 2238 | const I32 gimme = GIMME_V; |
a0d0e21e | 2239 | |
d343c3ef | 2240 | ENTER_with_name("loop1"); |
a0d0e21e | 2241 | SAVETMPS; |
d343c3ef | 2242 | ENTER_with_name("loop2"); |
a0d0e21e | 2243 | |
3b719c58 NC |
2244 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2245 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2246 | |
2247 | RETURN; | |
2248 | } | |
2249 | ||
2250 | PP(pp_leaveloop) | |
2251 | { | |
20b7effb | 2252 | dSP; |
eb578fdb | 2253 | PERL_CONTEXT *cx; |
a0d0e21e LW |
2254 | I32 gimme; |
2255 | SV **newsp; | |
2256 | PMOP *newpm; | |
2257 | SV **mark; | |
2258 | ||
2259 | POPBLOCK(cx,newpm); | |
3b719c58 | 2260 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2261 | mark = newsp; |
a8bba7fa | 2262 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2263 | |
2fc507dc | 2264 | SP = leave_common(newsp, SP, MARK, gimme, 0, |
a373464f | 2265 | PL_op->op_private & OPpLVALUE); |
f86702cc | 2266 | PUTBACK; |
2267 | ||
a8bba7fa | 2268 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2269 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2270 | |
d343c3ef GG |
2271 | LEAVE_with_name("loop2"); |
2272 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2273 | |
f86702cc | 2274 | return NORMAL; |
a0d0e21e LW |
2275 | } |
2276 | ||
31ccb4f5 DM |
2277 | |
2278 | /* This duplicates most of pp_leavesub, but with additional code to handle | |
2279 | * return args in lvalue context. It was forked from pp_leavesub to | |
2280 | * avoid slowing down that function any further. | |
2281 | * | |
2282 | * Any changes made to this function may need to be copied to pp_leavesub | |
2283 | * and vice-versa. | |
57486a97 DM |
2284 | */ |
2285 | ||
31ccb4f5 | 2286 | PP(pp_leavesublv) |
3bdf583b | 2287 | { |
57486a97 DM |
2288 | dSP; |
2289 | SV **newsp; | |
2290 | SV **mark; | |
2291 | PMOP *newpm; | |
2292 | I32 gimme; | |
2293 | PERL_CONTEXT *cx; | |
2294 | SV *sv; | |
2295 | bool ref; | |
a8fc6464 | 2296 | const char *what = NULL; |
57486a97 | 2297 | |
1f0ba93b DM |
2298 | if (CxMULTICALL(&cxstack[cxstack_ix])) { |
2299 | /* entry zero of a stack is always PL_sv_undef, which | |
2300 | * simplifies converting a '()' return into undef in scalar context */ | |
2301 | assert(PL_stack_sp > PL_stack_base || *PL_stack_base == &PL_sv_undef); | |
85ecf147 | 2302 | return 0; |
1f0ba93b | 2303 | } |
85ecf147 | 2304 | |
57486a97 DM |
2305 | POPBLOCK(cx,newpm); |
2306 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ | |
2307 | TAINT_NOT; | |
2308 | ||
e80c4acf | 2309 | mark = newsp + 1; |
57486a97 DM |
2310 | |
2311 | ref = !!(CxLVAL(cx) & OPpENTERSUB_INARGS); | |
3bdf583b | 2312 | if (gimme == G_SCALAR) { |
d25b0d7b FC |
2313 | if (CxLVAL(cx) && !ref) { /* Leave it as it is if we can. */ |
2314 | SV *sv; | |
e80c4acf DM |
2315 | if (MARK <= SP) { |
2316 | assert(MARK == SP); | |
3885a45a | 2317 | if ((SvPADTMP(TOPs) || SvREADONLY(TOPs)) && |
d25b0d7b | 2318 | !SvSMAGICAL(TOPs)) { |
001de122 | 2319 | what = |
d25b0d7b | 2320 | SvREADONLY(TOPs) ? (TOPs == &PL_sv_undef) ? "undef" |
001de122 | 2321 | : "a readonly value" : "a temporary"; |
d25b0d7b | 2322 | } |
001de122 | 2323 | else goto copy_sv; |
d25b0d7b FC |
2324 | } |
2325 | else { | |
2326 | /* sub:lvalue{} will take us here. */ | |
001de122 | 2327 | what = "undef"; |
d25b0d7b | 2328 | } |
a8fc6464 | 2329 | croak: |
001de122 | 2330 | LEAVE; |
001de122 | 2331 | POPSUB(cx,sv); |
716436dc | 2332 | cxstack_ix--; |
001de122 FC |
2333 | PL_curpm = newpm; |
2334 | LEAVESUB(sv); | |
2335 | Perl_croak(aTHX_ | |
2336 | "Can't return %s from lvalue subroutine", what | |
2337 | ); | |
d25b0d7b | 2338 | } |
e80c4acf | 2339 | if (MARK <= SP) { |
a5ad7a5a | 2340 | copy_sv: |
3bdf583b | 2341 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
5811c07e | 2342 | if (!SvPADTMP(*SP)) { |
e80c4acf | 2343 | *MARK = SvREFCNT_inc(*SP); |
3bdf583b | 2344 | FREETMPS; |
e80c4acf | 2345 | sv_2mortal(*MARK); |
5811c07e FC |
2346 | } |
2347 | else { | |
2348 | /* FREETMPS could clobber it */ | |
2349 | SV *sv = SvREFCNT_inc(*SP); | |
2350 | FREETMPS; | |
e80c4acf | 2351 | *MARK = sv_mortalcopy(sv); |
5811c07e FC |
2352 | SvREFCNT_dec(sv); |
2353 | } | |
3bdf583b FC |
2354 | } |
2355 | else | |
e80c4acf | 2356 | *MARK = |
5811c07e FC |
2357 | SvPADTMP(*SP) |
2358 | ? sv_mortalcopy(*SP) | |
2359 | : !SvTEMP(*SP) | |
e08be60b FC |
2360 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*SP)) |
2361 | : *SP; | |
3bdf583b | 2362 | } |
0d235c77 | 2363 | else { |
e80c4acf DM |
2364 | MEXTEND(MARK, 0); |
2365 | *MARK = &PL_sv_undef; | |
0d235c77 | 2366 | } |
e80c4acf DM |
2367 | SP = MARK; |
2368 | ||
0e9700df | 2369 | if (CxLVAL(cx) & OPpDEREF) { |
767eda44 FC |
2370 | SvGETMAGIC(TOPs); |
2371 | if (!SvOK(TOPs)) { | |
0e9700df | 2372 | TOPs = vivify_ref(TOPs, CxLVAL(cx) & OPpDEREF); |
767eda44 FC |
2373 | } |
2374 | } | |
3bdf583b FC |
2375 | } |
2376 | else if (gimme == G_ARRAY) { | |
0e9700df | 2377 | assert (!(CxLVAL(cx) & OPpDEREF)); |
80422e24 | 2378 | if (ref || !CxLVAL(cx)) |
e80c4acf DM |
2379 | for (; MARK <= SP; MARK++) |
2380 | *MARK = | |
5811c07e | 2381 | SvFLAGS(*MARK) & SVs_PADTMP |
80422e24 | 2382 | ? sv_mortalcopy(*MARK) |
5811c07e FC |
2383 | : SvTEMP(*MARK) |
2384 | ? *MARK | |
80422e24 | 2385 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); |
e80c4acf | 2386 | else for (; MARK <= SP; MARK++) { |
d25b0d7b | 2387 | if (*MARK != &PL_sv_undef |
3885a45a | 2388 | && (SvPADTMP(*MARK) || SvREADONLY(*MARK)) |
d25b0d7b | 2389 | ) { |
d25b0d7b | 2390 | /* Might be flattened array after $#array = */ |
a8fc6464 DM |
2391 | what = SvREADONLY(*MARK) |
2392 | ? "a readonly value" : "a temporary"; | |
2393 | goto croak; | |
d25b0d7b | 2394 | } |
e80c4acf DM |
2395 | else if (!SvTEMP(*MARK)) |
2396 | *MARK = sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); | |
3bdf583b FC |
2397 | } |
2398 | } | |
e80c4acf | 2399 | PUTBACK; |
57486a97 DM |
2400 | |
2401 | LEAVE; | |
716436dc DM |
2402 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
2403 | cxstack_ix--; | |
57486a97 DM |
2404 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2405 | LEAVESUB(sv); | |
2406 | ||
2407 | return cx->blk_sub.retop; | |
3bdf583b FC |
2408 | } |
2409 | ||
57486a97 | 2410 | |
a0d0e21e LW |
2411 | PP(pp_return) |
2412 | { | |
20b7effb | 2413 | dSP; dMARK; |
eb578fdb | 2414 | PERL_CONTEXT *cx; |
617a4f41 | 2415 | SV **oldsp; |
0bd48802 AL |
2416 | const I32 cxix = dopoptosub(cxstack_ix); |
2417 | ||
d40dc6b1 DM |
2418 | assert(cxstack_ix >= 0); |
2419 | if (cxix < cxstack_ix) { | |
2420 | if (cxix < 0) { | |
2421 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2422 | * sort block, which is a CXt_NULL | |
2423 | * not a CXt_SUB */ | |
2424 | dounwind(0); | |
2425 | /* if we were in list context, we would have to splice out | |
2426 | * any junk before the return args, like we do in the general | |
2427 | * pp_return case, e.g. | |
2428 | * sub f { for (junk1, junk2) { return arg1, arg2 }} | |
2429 | */ | |
2430 | assert(cxstack[0].blk_gimme == G_SCALAR); | |
2431 | return 0; | |
2432 | } | |
2433 | else | |
2434 | DIE(aTHX_ "Can't return outside a subroutine"); | |
2435 | } | |
a0d0e21e | 2436 | dounwind(cxix); |
d40dc6b1 | 2437 | } |
a0d0e21e | 2438 | |
6228a1e1 | 2439 | cx = &cxstack[cxix]; |
9850bf21 | 2440 | |
a375ceca DM |
2441 | oldsp = PL_stack_base + cx->blk_oldsp; |
2442 | if (oldsp != MARK) { | |
2443 | /* Handle extra junk on the stack. For example, | |
2444 | * for (1,2) { return 3,4 } | |
2445 | * leaves 1,2,3,4 on the stack. In list context we | |
2446 | * have to splice out the 1,2; In scalar context for | |
2447 | * for (1,2) { return } | |
2448 | * we need to set sp = oldsp so that pp_leavesub knows | |
2449 | * to push &PL_sv_undef onto the stack. | |
2450 | * Note that in pp_return we only do the extra processing | |
2451 | * required to handle junk; everything else we leave to | |
2452 | * pp_leavesub. | |
2453 | */ | |
2454 | SSize_t nargs = SP - MARK; | |
2455 | if (nargs) { | |
2456 | if (cx->blk_gimme == G_ARRAY) { | |
2457 | /* shift return args to base of call stack frame */ | |
48344877 | 2458 | Move(MARK + 1, oldsp + 1, nargs, SV*); |
a375ceca | 2459 | PL_stack_sp = oldsp + nargs; |
6228a1e1 | 2460 | } |
13929c4c | 2461 | } |
a375ceca DM |
2462 | else |
2463 | PL_stack_sp = oldsp; | |
2464 | } | |
617a4f41 DM |
2465 | |
2466 | /* fall through to a normal exit */ | |
2467 | switch (CxTYPE(cx)) { | |
2468 | case CXt_EVAL: | |
2469 | return CxTRYBLOCK(cx) | |
2470 | ? Perl_pp_leavetry(aTHX) | |
2471 | : Perl_pp_leaveeval(aTHX); | |
2472 | case CXt_SUB: | |
13929c4c | 2473 | return CvLVALUE(cx->blk_sub.cv) |
31ccb4f5 | 2474 | ? Perl_pp_leavesublv(aTHX) |
13929c4c | 2475 | : Perl_pp_leavesub(aTHX); |
7766f137 | 2476 | case CXt_FORMAT: |
617a4f41 | 2477 | return Perl_pp_leavewrite(aTHX); |
a0d0e21e | 2478 | default: |
5637ef5b | 2479 | DIE(aTHX_ "panic: return, type=%u", (unsigned) CxTYPE(cx)); |
a0d0e21e | 2480 | } |
a0d0e21e LW |
2481 | } |
2482 | ||
4f443c3d | 2483 | |
1f039d60 FC |
2484 | static I32 |
2485 | S_unwind_loop(pTHX_ const char * const opname) | |
a0d0e21e | 2486 | { |
a0d0e21e | 2487 | I32 cxix; |
1f039d60 FC |
2488 | if (PL_op->op_flags & OPf_SPECIAL) { |
2489 | cxix = dopoptoloop(cxstack_ix); | |
2490 | if (cxix < 0) | |
2491 | /* diag_listed_as: Can't "last" outside a loop block */ | |
2492 | Perl_croak(aTHX_ "Can't \"%s\" outside a loop block", opname); | |
2493 | } | |
2494 | else { | |
2495 | dSP; | |
2496 | STRLEN label_len; | |
2497 | const char * const label = | |
2498 | PL_op->op_flags & OPf_STACKED | |
2499 | ? SvPV(TOPs,label_len) | |
2500 | : (label_len = strlen(cPVOP->op_pv), cPVOP->op_pv); | |
2501 | const U32 label_flags = | |
2502 | PL_op->op_flags & OPf_STACKED | |
2503 | ? SvUTF8(POPs) | |
2504 | : (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0; | |
2505 | PUTBACK; | |
2506 | cxix = dopoptolabel(label, label_len, label_flags); | |
2507 | if (cxix < 0) | |
2508 | /* diag_listed_as: Label not found for "last %s" */ | |
2509 | Perl_croak(aTHX_ "Label not found for \"%s %"SVf"\"", | |
2510 | opname, | |
2511 | SVfARG(PL_op->op_flags & OPf_STACKED | |
2512 | && !SvGMAGICAL(TOPp1s) | |
2513 | ? TOPp1s | |
2514 | : newSVpvn_flags(label, | |
2515 | label_len, | |
2516 | label_flags | SVs_TEMP))); | |
2517 | } | |
2518 | if (cxix < cxstack_ix) | |
2519 | dounwind(cxix); | |
2520 | return cxix; | |
2521 | } | |
2522 | ||
2523 | PP(pp_last) | |
2524 | { | |
eb578fdb | 2525 | PERL_CONTEXT *cx; |
a0d0e21e | 2526 | I32 gimme; |
b263a1ad | 2527 | OP *nextop = NULL; |
a0d0e21e LW |
2528 | SV **newsp; |
2529 | PMOP *newpm; | |
9d4ba2ae | 2530 | |
1f039d60 | 2531 | S_unwind_loop(aTHX_ "last"); |
a0d0e21e LW |
2532 | |
2533 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2534 | cxstack_ix++; /* temporarily protect top context */ |
d3e5e568 DM |
2535 | assert( |
2536 | CxTYPE(cx) == CXt_LOOP_LAZYIV | |
2537 | || CxTYPE(cx) == CXt_LOOP_LAZYSV | |
2538 | || CxTYPE(cx) == CXt_LOOP_FOR | |
2539 | || CxTYPE(cx) == CXt_LOOP_PLAIN | |
2540 | ); | |
2541 | newsp = PL_stack_base + cx->blk_loop.resetsp; | |
2542 | nextop = cx->blk_loop.my_op->op_lastop->op_next; | |
a0d0e21e | 2543 | |
a1f49e72 | 2544 | TAINT_NOT; |
0c0c317c | 2545 | PL_stack_sp = newsp; |
f86702cc | 2546 | |
5dd42e15 DM |
2547 | LEAVE; |
2548 | cxstack_ix--; | |
f86702cc | 2549 | /* Stack values are safe: */ |
d3e5e568 DM |
2550 | POPLOOP(cx); /* release loop vars ... */ |
2551 | LEAVE; | |
3280af22 | 2552 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2553 | |
9d4ba2ae | 2554 | PERL_UNUSED_VAR(gimme); |
f86702cc | 2555 | return nextop; |
a0d0e21e LW |
2556 | } |
2557 | ||
2558 | PP(pp_next) | |
2559 | { | |
eb578fdb | 2560 | PERL_CONTEXT *cx; |
1f039d60 | 2561 | const I32 inner = PL_scopestack_ix; |
a0d0e21e | 2562 | |
1f039d60 | 2563 | S_unwind_loop(aTHX_ "next"); |
a0d0e21e | 2564 | |
85538317 GS |
2565 | /* clear off anything above the scope we're re-entering, but |
2566 | * save the rest until after a possible continue block */ | |
1ba6ee2b | 2567 | TOPBLOCK(cx); |
85538317 GS |
2568 | if (PL_scopestack_ix < inner) |
2569 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2570 | PL_curcop = cx->blk_oldcop; |
47c9d59f | 2571 | PERL_ASYNC_CHECK(); |
d57ce4df | 2572 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2573 | } |
2574 | ||
2575 | PP(pp_redo) | |
2576 | { | |
1f039d60 | 2577 | const I32 cxix = S_unwind_loop(aTHX_ "redo"); |
eb578fdb | 2578 | PERL_CONTEXT *cx; |
a0d0e21e | 2579 | I32 oldsave; |
1f039d60 | 2580 | OP* redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a0d0e21e | 2581 | |
a034e688 DM |
2582 | if (redo_op->op_type == OP_ENTER) { |
2583 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2584 | cxstack_ix++; | |
2585 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2586 | redo_op = redo_op->op_next; | |
2587 | } | |
2588 | ||
a0d0e21e | 2589 | TOPBLOCK(cx); |
3280af22 | 2590 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2591 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2592 | FREETMPS; |
3a1b2b9e | 2593 | PL_curcop = cx->blk_oldcop; |
47c9d59f | 2594 | PERL_ASYNC_CHECK(); |
a034e688 | 2595 | return redo_op; |
a0d0e21e LW |
2596 | } |
2597 | ||
0824fdcb | 2598 | STATIC OP * |
5db1eb8d | 2599 | S_dofindlabel(pTHX_ OP *o, const char *label, STRLEN len, U32 flags, OP **opstack, OP **oplimit) |
a0d0e21e | 2600 | { |
a0d0e21e | 2601 | OP **ops = opstack; |
a1894d81 | 2602 | static const char* const too_deep = "Target of goto is too deeply nested"; |
a0d0e21e | 2603 | |
7918f24d NC |
2604 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2605 | ||
fc36a67e | 2606 | if (ops >= oplimit) |
0157ef98 | 2607 | Perl_croak(aTHX_ "%s", too_deep); |
11343788 MB |
2608 | if (o->op_type == OP_LEAVE || |
2609 | o->op_type == OP_SCOPE || | |
2610 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2611 | o->op_type == OP_LEAVESUB || |
11343788 | 2612 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2613 | { |
5dc0d613 | 2614 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2615 | if (ops >= oplimit) |
0157ef98 | 2616 | Perl_croak(aTHX_ "%s", too_deep); |
fc36a67e | 2617 | } |
c4aa4e48 | 2618 | *ops = 0; |
11343788 | 2619 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2620 | OP *kid; |
a0d0e21e | 2621 | /* First try all the kids at this level, since that's likeliest. */ |
e6dae479 | 2622 | for (kid = cUNOPo->op_first; kid; kid = OpSIBLING(kid)) { |
7e8f1eac | 2623 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
5db1eb8d BF |
2624 | STRLEN kid_label_len; |
2625 | U32 kid_label_flags; | |
2626 | const char *kid_label = CopLABEL_len_flags(kCOP, | |
2627 | &kid_label_len, &kid_label_flags); | |
2628 | if (kid_label && ( | |
2629 | ( (kid_label_flags & SVf_UTF8) != (flags & SVf_UTF8) ) ? | |
2630 | (flags & SVf_UTF8) | |
2631 | ? (bytes_cmp_utf8( | |
2632 | (const U8*)kid_label, kid_label_len, | |
2633 | (const U8*)label, len) == 0) | |
2634 | : (bytes_cmp_utf8( | |
2635 | (const U8*)label, len, | |
2636 | (const U8*)kid_label, kid_label_len) == 0) | |
eade7155 BF |
2637 | : ( len == kid_label_len && ((kid_label == label) |
2638 | || memEQ(kid_label, label, len))))) | |
7e8f1eac AD |
2639 | return kid; |
2640 | } | |
a0d0e21e | 2641 | } |
e6dae479 | 2642 | for (kid = cUNOPo->op_first; kid; kid = OpSIBLING(kid)) { |
3280af22 | 2643 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2644 | continue; |
ed8d0fe2 SM |
2645 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2646 | if (ops == opstack) | |
2647 | *ops++ = kid; | |
2648 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2649 | ops[-1]->op_type == OP_DBSTATE) | |
2650 | ops[-1] = kid; | |
2651 | else | |
2652 | *ops++ = kid; | |
2653 | } | |
5db1eb8d | 2654 | if ((o = dofindlabel(kid, label, len, flags, ops, oplimit))) |
11343788 | 2655 | return o; |
a0d0e21e LW |
2656 | } |
2657 | } | |
c4aa4e48 | 2658 | *ops = 0; |
a0d0e21e LW |
2659 | return 0; |
2660 | } | |
2661 | ||
b1c05ba5 DM |
2662 | |
2663 | /* also used for: pp_dump() */ | |
2664 | ||
2665 | PP(pp_goto) | |
a0d0e21e | 2666 | { |
27da23d5 | 2667 | dVAR; dSP; |
cbbf8932 | 2668 | OP *retop = NULL; |
a0d0e21e | 2669 | I32 ix; |
eb578fdb | 2670 | PERL_CONTEXT *cx; |
fc36a67e | 2671 | #define GOTO_DEPTH 64 |
2672 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2673 | const char *label = NULL; |
5db1eb8d BF |
2674 | STRLEN label_len = 0; |
2675 | U32 label_flags = 0; | |
bfed75c6 | 2676 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
a1894d81 | 2677 | static const char* const must_have_label = "goto must have label"; |
a0d0e21e | 2678 | |
533c011a | 2679 | if (PL_op->op_flags & OPf_STACKED) { |
7d1d69cb DM |
2680 | /* goto EXPR or goto &foo */ |
2681 | ||
9d4ba2ae | 2682 | SV * const sv = POPs; |
55b37f1c | 2683 | SvGETMAGIC(sv); |
a0d0e21e LW |
2684 | |
2685 | /* This egregious kludge implements goto &subroutine */ | |
2686 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2687 | I32 cxix; | |
eb578fdb | 2688 | PERL_CONTEXT *cx; |
ea726b52 | 2689 | CV *cv = MUTABLE_CV(SvRV(sv)); |
049bd5ff | 2690 | AV *arg = GvAV(PL_defgv); |
a0d0e21e LW |
2691 | I32 oldsave; |
2692 | ||
e8f7dd13 | 2693 | retry: |
4aa0a1f7 | 2694 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2695 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2696 | if (gv) { |
7fc63493 | 2697 | GV *autogv; |
e8f7dd13 GS |
2698 | SV *tmpstr; |
2699 | /* autoloaded stub? */ | |
2700 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2701 | goto retry; | |
c271df94 BF |
2702 | autogv = gv_autoload_pvn(GvSTASH(gv), GvNAME(gv), |
2703 | GvNAMELEN(gv), | |
2704 | GvNAMEUTF8(gv) ? SVf_UTF8 : 0); | |
e8f7dd13 GS |
2705 | if (autogv && (cv = GvCV(autogv))) |
2706 | goto retry; | |
2707 | tmpstr = sv_newmortal(); | |
c445ea15 | 2708 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2709 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2710 | } |
cea2e8a9 | 2711 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2712 | } |
2713 | ||
a0d0e21e | 2714 | /* First do some returnish stuff. */ |
b37c2d43 | 2715 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2716 | FREETMPS; |
a0d0e21e | 2717 | cxix = dopoptosub(cxstack_ix); |
8da3792e S |
2718 | if (cxix < cxstack_ix) { |
2719 | if (cxix < 0) { | |
2720 | SvREFCNT_dec(cv); | |
2721 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); | |
2722 | } | |
a0d0e21e | 2723 | dounwind(cxix); |
8da3792e | 2724 | } |
a0d0e21e | 2725 | TOPBLOCK(cx); |
2d43a17f | 2726 | SPAGAIN; |
564abe23 | 2727 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2728 | if (CxTYPE(cx) == CXt_EVAL) { |
110af908 | 2729 | SvREFCNT_dec(cv); |
c74ace89 | 2730 | if (CxREALEVAL(cx)) |
00455a92 | 2731 | /* diag_listed_as: Can't goto subroutine from an eval-%s */ |
c74ace89 DM |
2732 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); |
2733 | else | |
00455a92 | 2734 | /* diag_listed_as: Can't goto subroutine from an eval-%s */ |
c74ace89 | 2735 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); |
2d43a17f | 2736 | } |
9850bf21 | 2737 | else if (CxMULTICALL(cx)) |
110af908 FC |
2738 | { |
2739 | SvREFCNT_dec(cv); | |
9850bf21 | 2740 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); |
110af908 | 2741 | } |
bafb2adc | 2742 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
a0d0e21e | 2743 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2744 | |
049bd5ff FC |
2745 | /* abandon the original @_ if it got reified or if it is |
2746 | the same as the current @_ */ | |
2747 | if (AvREAL(av) || av == arg) { | |
b1464ded | 2748 | SvREFCNT_dec(av); |
d8b46c1b | 2749 | av = newAV(); |
11ca45c0 | 2750 | AvREIFY_only(av); |
ad64d0ec | 2751 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2752 | } |
049bd5ff | 2753 | else CLEAR_ARGARRAY(av); |
a0d0e21e | 2754 | } |
049bd5ff FC |
2755 | /* We donate this refcount later to the callee’s pad. */ |
2756 | SvREFCNT_inc_simple_void(arg); | |
6b35e009 | 2757 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2758 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2759 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2760 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2761 | LEAVE_SCOPE(oldsave); |
2762 | ||
1d59c038 FC |
2763 | /* A destructor called during LEAVE_SCOPE could have undefined |
2764 | * our precious cv. See bug #99850. */ | |
2765 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
2766 | const GV * const gv = CvGV(cv); | |
049bd5ff | 2767 | SvREFCNT_dec(arg); |
1d59c038 FC |
2768 | if (gv) { |
2769 | SV * const tmpstr = sv_newmortal(); | |
2770 | gv_efullname3(tmpstr, gv, NULL); | |
2771 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", | |
2772 | SVfARG(tmpstr)); | |
2773 | } | |
2774 | DIE(aTHX_ "Goto undefined subroutine"); | |
2775 | } | |
2776 | ||
a0d0e21e LW |
2777 | /* Now do some callish stuff. */ |
2778 | SAVETMPS; | |
5023d17a | 2779 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2780 | if (CvISXSUB(cv)) { |
cb65b687 DM |
2781 | SV **newsp; |
2782 | I32 gimme; | |
ad39f3a2 | 2783 | const SSize_t items = arg ? AvFILL(arg) + 1 : 0; |
cd313eb4 | 2784 | const bool m = arg ? cBOOL(SvRMAGICAL(arg)) : 0; |
049bd5ff FC |
2785 | SV** mark; |
2786 | ||
cb65b687 DM |
2787 | PERL_UNUSED_VAR(newsp); |
2788 | PERL_UNUSED_VAR(gimme); | |
2789 | ||
049bd5ff | 2790 | /* put GvAV(defgv) back onto stack */ |
8c9d3376 FC |
2791 | if (items) { |
2792 | EXTEND(SP, items+1); /* @_ could have been extended. */ | |
8c9d3376 | 2793 | } |
049bd5ff | 2794 | mark = SP; |
ad39f3a2 | 2795 | if (items) { |
de935cc9 | 2796 | SSize_t index; |
ad39f3a2 | 2797 | bool r = cBOOL(AvREAL(arg)); |
b1464ded | 2798 | for (index=0; index<items; index++) |
ad39f3a2 FC |
2799 | { |
2800 | SV *sv; | |
2801 | if (m) { | |
2802 | SV ** const svp = av_fetch(arg, index, 0); | |
2803 | sv = svp ? *svp : NULL; | |
dd2a7f90 | 2804 | } |
ad39f3a2 FC |
2805 | else sv = AvARRAY(arg)[index]; |
2806 | SP[index+1] = sv | |
2807 | ? r ? SvREFCNT_inc_NN(sv_2mortal(sv)) : sv | |
2808 | : sv_2mortal(newSVavdefelem(arg, index, 1)); | |
2809 | } | |
049bd5ff | 2810 | } |
ad39f3a2 | 2811 | SP += items; |
049bd5ff FC |
2812 | SvREFCNT_dec(arg); |
2813 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { | |
2814 | /* Restore old @_ */ | |
2815 | arg = GvAV(PL_defgv); | |
2816 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
2817 | SvREFCNT_dec(arg); | |
b1464ded | 2818 | } |
1fa4e549 | 2819 | |
51eb35b5 | 2820 | retop = cx->blk_sub.retop; |
b37c2d43 AL |
2821 | /* XS subs don't have a CxSUB, so pop it */ |
2822 | POPBLOCK(cx, PL_curpm); | |
2823 | /* Push a mark for the start of arglist */ | |
2824 | PUSHMARK(mark); | |
2825 | PUTBACK; | |
2826 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2827 | LEAVE; |
51eb35b5 | 2828 | goto _return; |
a0d0e21e LW |
2829 | } |
2830 | else { | |
b70d5558 | 2831 | PADLIST * const padlist = CvPADLIST(cv); |
a0d0e21e | 2832 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2833 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2834 | |
a0d0e21e LW |
2835 | CvDEPTH(cv)++; |
2836 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2837 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2838 | else { |
2b9dff67 | 2839 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2840 | sub_crush_depth(cv); |
26019298 | 2841 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2842 | } |
426a09cd | 2843 | PL_curcop = cx->blk_oldcop; |
fd617465 DM |
2844 | SAVECOMPPAD(); |
2845 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2846 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2847 | { |
dd2155a4 | 2848 | CX_CURPAD_SAVE(cx->blk_sub); |
a0d0e21e | 2849 | |
049bd5ff FC |
2850 | /* cx->blk_sub.argarray has no reference count, so we |
2851 | need something to hang on to our argument array so | |
2852 | that cx->blk_sub.argarray does not end up pointing | |
2853 | to freed memory as the result of undef *_. So put | |
2854 | it in the callee’s pad, donating our refer- | |
2855 | ence count. */ | |
bfa371b6 FC |
2856 | if (arg) { |
2857 | SvREFCNT_dec(PAD_SVl(0)); | |
2858 | PAD_SVl(0) = (SV *)(cx->blk_sub.argarray = arg); | |
2859 | } | |
049bd5ff FC |
2860 | |
2861 | /* GvAV(PL_defgv) might have been modified on scope | |
2862 | exit, so restore it. */ | |
2863 | if (arg != GvAV(PL_defgv)) { | |
2864 | AV * const av = GvAV(PL_defgv); | |
2865 | GvAV(PL_defgv) = (AV *)SvREFCNT_inc_simple(arg); | |
2866 | SvREFCNT_dec(av); | |
a0d0e21e LW |
2867 | } |
2868 | } | |
049bd5ff | 2869 | else SvREFCNT_dec(arg); |
491527d0 | 2870 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2871 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2872 | if (PERLDB_GOTO) { |
b96d8cd9 | 2873 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2874 | if (gotocv) { |
2875 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2876 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2877 | PL_stack_sp--; |
2878 | } | |
491527d0 | 2879 | } |
1ce6579f | 2880 | } |
51eb35b5 DD |
2881 | retop = CvSTART(cv); |
2882 | goto putback_return; | |
a0d0e21e LW |
2883 | } |
2884 | } | |
1614b0e3 | 2885 | else { |
7d1d69cb | 2886 | /* goto EXPR */ |
55b37f1c | 2887 | label = SvPV_nomg_const(sv, label_len); |
5db1eb8d | 2888 | label_flags = SvUTF8(sv); |
1614b0e3 | 2889 | } |
a0d0e21e | 2890 | } |
2fc690dc | 2891 | else if (!(PL_op->op_flags & OPf_SPECIAL)) { |
7d1d69cb | 2892 | /* goto LABEL or dump LABEL */ |
5db1eb8d BF |
2893 | label = cPVOP->op_pv; |
2894 | label_flags = (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0; | |
2895 | label_len = strlen(label); | |
2896 | } | |
0157ef98 | 2897 | if (!(do_dump || label_len)) DIE(aTHX_ "%s", must_have_label); |
a0d0e21e | 2898 | |
f410a211 NC |
2899 | PERL_ASYNC_CHECK(); |
2900 | ||
3532f34a | 2901 | if (label_len) { |
cbbf8932 | 2902 | OP *gotoprobe = NULL; |
3b2447bc | 2903 | bool leaving_eval = FALSE; |
33d34e4c | 2904 | bool in_block = FALSE; |
cbbf8932 | 2905 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2906 | |
2907 | /* find label */ | |
2908 | ||
d4c19fe8 | 2909 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2910 | *enterops = 0; |
2911 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2912 | cx = &cxstack[ix]; | |
6b35e009 | 2913 | switch (CxTYPE(cx)) { |
a0d0e21e | 2914 | case CXt_EVAL: |
3b2447bc | 2915 | leaving_eval = TRUE; |
971ecbe6 | 2916 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2917 | gotoprobe = (last_eval_cx ? |
2918 | last_eval_cx->blk_eval.old_eval_root : | |
2919 | PL_eval_root); | |
2920 | last_eval_cx = cx; | |
9c5794fe RH |
2921 | break; |
2922 | } | |
2923 | /* else fall through */ | |
c6fdafd0 | 2924 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2925 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2926 | case CXt_LOOP_FOR: |
2927 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2928 | case CXt_GIVEN: |
2929 | case CXt_WHEN: | |
e6dae479 | 2930 | gotoprobe = OpSIBLING(cx->blk_oldcop); |
a0d0e21e LW |
2931 | break; |
2932 | case CXt_SUBST: | |
2933 | continue; | |
2934 | case CXt_BLOCK: | |
33d34e4c | 2935 | if (ix) { |
e6dae479 | 2936 | gotoprobe = OpSIBLING(cx->blk_oldcop); |
33d34e4c AE |
2937 | in_block = TRUE; |
2938 | } else | |
3280af22 | 2939 | gotoprobe = PL_main_root; |
a0d0e21e | 2940 | break; |
b3933176 | 2941 | case CXt_SUB: |
9850bf21 | 2942 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2943 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2944 | break; | |
2945 | } | |
924ba076 | 2946 | /* FALLTHROUGH */ |
7766f137 | 2947 | case CXt_FORMAT: |
0a753a76 | 2948 | case CXt_NULL: |
a651a37d | 2949 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2950 | default: |
2951 | if (ix) | |
5637ef5b NC |
2952 | DIE(aTHX_ "panic: goto, type=%u, ix=%ld", |
2953 | CxTYPE(cx), (long) ix); | |
3280af22 | 2954 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2955 | break; |
2956 | } | |
2b597662 | 2957 | if (gotoprobe) { |
29e61fd9 DM |
2958 | OP *sibl1, *sibl2; |
2959 | ||
5db1eb8d | 2960 | retop = dofindlabel(gotoprobe, label, label_len, label_flags, |
2b597662 GS |
2961 | enterops, enterops + GOTO_DEPTH); |
2962 | if (retop) | |
2963 | break; | |
e6dae479 | 2964 | if ( (sibl1 = OpSIBLING(gotoprobe)) && |
29e61fd9 | 2965 | sibl1->op_type == OP_UNSTACK && |
e6dae479 | 2966 | (sibl2 = OpSIBLING(sibl1))) |
29e61fd9 DM |
2967 | { |
2968 | retop = dofindlabel(sibl2, | |
5db1eb8d BF |
2969 | label, label_len, label_flags, enterops, |
2970 | enterops + GOTO_DEPTH); | |
eae48c89 Z |
2971 | if (retop) |
2972 | break; | |
2973 | } | |
2b597662 | 2974 | } |
3280af22 | 2975 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2976 | } |
2977 | if (!retop) | |
b17a0679 FC |
2978 | DIE(aTHX_ "Can't find label %"UTF8f, |
2979 | UTF8fARG(label_flags, label_len, label)); | |
a0d0e21e | 2980 | |
3b2447bc RH |
2981 | /* if we're leaving an eval, check before we pop any frames |
2982 | that we're not going to punt, otherwise the error | |
2983 | won't be caught */ | |
2984 | ||
2985 | if (leaving_eval && *enterops && enterops[1]) { | |
2986 | I32 i; | |
2987 | for (i = 1; enterops[i]; i++) | |
2988 | if (enterops[i]->op_type == OP_ENTERITER) | |
2989 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2990 | } | |
2991 | ||
b500e03b GG |
2992 | if (*enterops && enterops[1]) { |
2993 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2994 | if (enterops[i]) | |
2995 | deprecate("\"goto\" to jump into a construct"); | |
2996 | } | |
2997 | ||
a0d0e21e LW |
2998 | /* pop unwanted frames */ |
2999 | ||
3000 | if (ix < cxstack_ix) { | |
3001 | I32 oldsave; | |
3002 | ||
3003 | if (ix < 0) | |
5edb7975 | 3004 | DIE(aTHX_ "panic: docatch: illegal ix=%ld", (long)ix); |
a0d0e21e LW |
3005 | dounwind(ix); |
3006 | TOPBLOCK(cx); | |
3280af22 | 3007 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
3008 | LEAVE_SCOPE(oldsave); |
3009 | } | |
3010 | ||
3011 | /* push wanted frames */ | |
3012 | ||
748a9306 | 3013 | if (*enterops && enterops[1]) { |
0bd48802 | 3014 | OP * const oldop = PL_op; |
33d34e4c AE |
3015 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
3016 | for (; enterops[ix]; ix++) { | |
533c011a | 3017 | PL_op = enterops[ix]; |
84902520 TB |
3018 | /* Eventually we may want to stack the needed arguments |
3019 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 3020 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 3021 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 3022 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 3023 | } |
533c011a | 3024 | PL_op = oldop; |
a0d0e21e LW |
3025 | } |
3026 | } | |
3027 | ||
2631bbca | 3028 | if (do_dump) { |
a5f75d66 | 3029 | #ifdef VMS |
6b88bc9c | 3030 | if (!retop) retop = PL_main_start; |
a5f75d66 | 3031 | #endif |
3280af22 NIS |
3032 | PL_restartop = retop; |
3033 | PL_do_undump = TRUE; | |
a0d0e21e LW |
3034 | |
3035 | my_unexec(); | |
3036 | ||
3280af22 NIS |
3037 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
3038 | PL_do_undump = FALSE; | |
a0d0e21e LW |
3039 | } |
3040 | ||
51eb35b5 DD |
3041 | putback_return: |
3042 | PL_stack_sp = sp; | |
3043 | _return: | |
47c9d59f | 3044 | PERL_ASYNC_CHECK(); |
51eb35b5 | 3045 | return retop; |
a0d0e21e LW |
3046 | } |
3047 | ||
3048 | PP(pp_exit) | |
3049 | { | |
39644a26 | 3050 | dSP; |
a0d0e21e LW |
3051 | I32 anum; |
3052 | ||
3053 | if (MAXARG < 1) | |
3054 | anum = 0; | |
9d3c658e FC |
3055 | else if (!TOPs) { |
3056 | anum = 0; (void)POPs; | |
3057 | } | |
ff0cee69 | 3058 | else { |
a0d0e21e | 3059 | anum = SvIVx(POPs); |
d98f61e7 | 3060 | #ifdef VMS |
5450b4d8 FC |
3061 | if (anum == 1 |
3062 | && SvTRUE(cop_hints_fetch_pvs(PL_curcop, "vmsish_exit", 0))) | |
ff0cee69 | 3063 | anum = 0; |
97124ef6 FC |
3064 | VMSISH_HUSHED = |
3065 | VMSISH_HUSHED || (PL_curcop->op_private & OPpHUSH_VMSISH); | |
ff0cee69 | 3066 | #endif |
3067 | } | |
cc3604b1 | 3068 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
a0d0e21e | 3069 | my_exit(anum); |
3280af22 | 3070 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
3071 | RETURN; |
3072 | } | |
3073 | ||
a0d0e21e LW |
3074 | /* Eval. */ |
3075 | ||
0824fdcb | 3076 | STATIC void |
cea2e8a9 | 3077 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 3078 | { |
504618e9 | 3079 | const char *s = SvPVX_const(sv); |
890ce7af | 3080 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 3081 | I32 line = 1; |
a0d0e21e | 3082 | |
7918f24d NC |
3083 | PERL_ARGS_ASSERT_SAVE_LINES; |
3084 | ||
a0d0e21e | 3085 | while (s && s < send) { |
f54cb97a | 3086 | const char *t; |
b9f83d2f | 3087 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 3088 | |
1d963ff3 | 3089 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
3090 | if (t) |
3091 | t++; | |
3092 | else | |
3093 | t = send; | |
3094 | ||
3095 | sv_setpvn(tmpstr, s, t - s); | |
3096 | av_store(array, line++, tmpstr); | |
3097 | s = t; | |
3098 | } | |
3099 | } | |
3100 | ||
22f16304 RU |
3101 | /* |
3102 | =for apidoc docatch | |
3103 | ||
3104 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
3105 | ||
3106 | 0 is used as continue inside eval, | |
3107 | ||
3108 | 3 is used for a die caught by an inner eval - continue inner loop | |
3109 | ||
3110 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
3111 | establish a local jmpenv to handle exception traps. | |
3112 | ||
3113 | =cut | |
3114 | */ | |
0824fdcb | 3115 | STATIC OP * |
cea2e8a9 | 3116 | S_docatch(pTHX_ OP *o) |
1e422769 | 3117 | { |
6224f72b | 3118 | int ret; |
06b5626a | 3119 | OP * const oldop = PL_op; |
db36c5a1 | 3120 | dJMPENV; |
1e422769 | 3121 | |
1e422769 | 3122 | #ifdef DEBUGGING |
54310121 | 3123 | assert(CATCH_GET == TRUE); |
1e422769 | 3124 | #endif |
312caa8e | 3125 | PL_op = o; |
8bffa5f8 | 3126 | |
14dd3ad8 | 3127 | JMPENV_PUSH(ret); |
6224f72b | 3128 | switch (ret) { |
312caa8e | 3129 | case 0: |
abd70938 DM |
3130 | assert(cxstack_ix >= 0); |
3131 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3132 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 3133 | redo_body: |
85aaa934 | 3134 | CALLRUNOPS(aTHX); |
312caa8e CS |
3135 | break; |
3136 | case 3: | |
8bffa5f8 | 3137 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
3138 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
3139 | PL_restartjmpenv = NULL; | |
312caa8e CS |
3140 | PL_op = PL_restartop; |
3141 | PL_restartop = 0; | |
3142 | goto redo_body; | |
3143 | } | |
924ba076 | 3144 | /* FALLTHROUGH */ |
312caa8e | 3145 | default: |
14dd3ad8 | 3146 | JMPENV_POP; |
533c011a | 3147 | PL_op = oldop; |
6224f72b | 3148 | JMPENV_JUMP(ret); |
e5964223 | 3149 | NOT_REACHED; /* NOTREACHED */ |
1e422769 | 3150 | } |
14dd3ad8 | 3151 | JMPENV_POP; |
533c011a | 3152 | PL_op = oldop; |
5f66b61c | 3153 | return NULL; |
1e422769 | 3154 | } |
3155 | ||
a3985cdc DM |
3156 | |
3157 | /* | |
3158 | =for apidoc find_runcv | |
3159 | ||
3160 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3161 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3162 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
72d33970 FC |
3163 | entered. (This allows debuggers to eval in the scope of the breakpoint |
3164 | rather than in the scope of the debugger itself.) | |
a3985cdc DM |
3165 | |
3166 | =cut | |
3167 | */ | |
3168 | ||
3169 | CV* | |
d819b83a | 3170 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3171 | { |
db4cf31d | 3172 | return Perl_find_runcv_where(aTHX_ 0, 0, db_seqp); |
70794f7b FC |
3173 | } |
3174 | ||
3175 | /* If this becomes part of the API, it might need a better name. */ | |
3176 | CV * | |
db4cf31d | 3177 | Perl_find_runcv_where(pTHX_ U8 cond, IV arg, U32 *db_seqp) |
70794f7b | 3178 | { |
a3985cdc | 3179 | PERL_SI *si; |
b4b0692a | 3180 | int level = 0; |
a3985cdc | 3181 | |
d819b83a | 3182 | if (db_seqp) |
c3923c33 DM |
3183 | *db_seqp = |
3184 | PL_curcop == &PL_compiling | |
3185 | ? PL_cop_seqmax | |
3186 | : PL_curcop->cop_seq; | |
3187 | ||
a3985cdc | 3188 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3189 | I32 ix; |
a3985cdc | 3190 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3191 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
70794f7b | 3192 | CV *cv = NULL; |
d819b83a | 3193 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
70794f7b | 3194 | cv = cx->blk_sub.cv; |
d819b83a DM |
3195 | /* skip DB:: code */ |
3196 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3197 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3198 | continue; | |
3199 | } | |
a453e28a DM |
3200 | if (cx->cx_type & CXp_SUB_RE) |
3201 | continue; | |
d819b83a | 3202 | } |
a3985cdc | 3203 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
70794f7b FC |
3204 | cv = cx->blk_eval.cv; |
3205 | if (cv) { | |
3206 | switch (cond) { | |
db4cf31d FC |
3207 | case FIND_RUNCV_padid_eq: |
3208 | if (!CvPADLIST(cv) | |
b4db5868 | 3209 | || CvPADLIST(cv)->xpadl_id != (U32)arg) |
8771da69 | 3210 | continue; |
b4b0692a FC |
3211 | return cv; |
3212 | case FIND_RUNCV_level_eq: | |
db4cf31d | 3213 | if (level++ != arg) continue; |
70794f7b FC |
3214 | /* GERONIMO! */ |
3215 | default: | |
3216 | return cv; | |
3217 | } | |
3218 | } | |
a3985cdc DM |
3219 | } |
3220 | } | |
db4cf31d | 3221 | return cond == FIND_RUNCV_padid_eq ? NULL : PL_main_cv; |
a3985cdc DM |
3222 | } |
3223 | ||
3224 | ||
27e90453 DM |
3225 | /* Run yyparse() in a setjmp wrapper. Returns: |
3226 | * 0: yyparse() successful | |
3227 | * 1: yyparse() failed | |
3228 | * 3: yyparse() died | |
3229 | */ | |
3230 | STATIC int | |
28ac2b49 | 3231 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3232 | { |
3233 | int ret; | |
3234 | dJMPENV; | |
3235 | ||
3236 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3237 | JMPENV_PUSH(ret); | |
3238 | switch (ret) { | |
3239 | case 0: | |
28ac2b49 | 3240 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3241 | break; |
3242 | case 3: | |
3243 | break; | |
3244 | default: | |
3245 | JMPENV_POP; | |
3246 | JMPENV_JUMP(ret); | |
e5964223 | 3247 | NOT_REACHED; /* NOTREACHED */ |
27e90453 DM |
3248 | } |
3249 | JMPENV_POP; | |
3250 | return ret; | |
3251 | } | |
3252 | ||
3253 | ||
104a8185 DM |
3254 | /* Compile a require/do or an eval ''. |
3255 | * | |
a3985cdc | 3256 | * outside is the lexically enclosing CV (if any) that invoked us. |
104a8185 DM |
3257 | * seq is the current COP scope value. |
3258 | * hh is the saved hints hash, if any. | |
3259 | * | |
410be5db | 3260 | * Returns a bool indicating whether the compile was successful; if so, |
104a8185 DM |
3261 | * PL_eval_start contains the first op of the compiled code; otherwise, |
3262 | * pushes undef. | |
3263 | * | |
3264 | * This function is called from two places: pp_require and pp_entereval. | |
3265 | * These can be distinguished by whether PL_op is entereval. | |
7d116edc FC |
3266 | */ |
3267 | ||
410be5db | 3268 | STATIC bool |
104a8185 | 3269 | S_doeval(pTHX_ int gimme, CV* outside, U32 seq, HV *hh) |
a0d0e21e | 3270 | { |
20b7effb | 3271 | dSP; |
46c461b5 | 3272 | OP * const saveop = PL_op; |
104a8185 | 3273 | bool clear_hints = saveop->op_type != OP_ENTEREVAL; |
f45b078d | 3274 | COP * const oldcurcop = PL_curcop; |
26c9400e | 3275 | bool in_require = (saveop->op_type == OP_REQUIRE); |
27e90453 | 3276 | int yystatus; |
676a678a | 3277 | CV *evalcv; |
a0d0e21e | 3278 | |
27e90453 | 3279 | PL_in_eval = (in_require |
6dc8a9e4 | 3280 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
a1941760 DM |
3281 | : (EVAL_INEVAL | |
3282 | ((PL_op->op_private & OPpEVAL_RE_REPARSING) | |
3283 | ? EVAL_RE_REPARSING : 0))); | |
a0d0e21e | 3284 | |
1ce6579f | 3285 | PUSHMARK(SP); |
3286 | ||
676a678a Z |
3287 | evalcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
3288 | CvEVAL_on(evalcv); | |
2090ab20 | 3289 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
676a678a | 3290 | cxstack[cxstack_ix].blk_eval.cv = evalcv; |
86a64801 | 3291 | cxstack[cxstack_ix].blk_gimme = gimme; |
2090ab20 | 3292 | |
676a678a Z |
3293 | CvOUTSIDE_SEQ(evalcv) = seq; |
3294 | CvOUTSIDE(evalcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); | |
a3985cdc | 3295 | |
dd2155a4 | 3296 | /* set up a scratch pad */ |
a0d0e21e | 3297 | |
eacbb379 | 3298 | CvPADLIST_set(evalcv, pad_new(padnew_SAVE)); |
cecbe010 | 3299 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3300 | |
07055b4c | 3301 | |
b5bbe64a | 3302 | SAVEMORTALIZESV(evalcv); /* must remain until end of current statement */ |
748a9306 | 3303 | |
a0d0e21e LW |
3304 | /* make sure we compile in the right package */ |
3305 | ||
ed094faf | 3306 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
03d9f026 | 3307 | SAVEGENERICSV(PL_curstash); |
cb1ad50e FC |
3308 | PL_curstash = (HV *)CopSTASH(PL_curcop); |
3309 | if (SvTYPE(PL_curstash) != SVt_PVHV) PL_curstash = NULL; | |
3310 | else SvREFCNT_inc_simple_void(PL_curstash); | |
a0d0e21e | 3311 | } |
3c10abe3 | 3312 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3313 | SAVESPTR(PL_beginav); |
3314 | PL_beginav = newAV(); | |
3315 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3316 | SAVESPTR(PL_unitcheckav); |
3317 | PL_unitcheckav = newAV(); | |
3318 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3319 | |
81d86705 | 3320 | |
104a8185 | 3321 | ENTER_with_name("evalcomp"); |
676a678a Z |
3322 | SAVESPTR(PL_compcv); |
3323 | PL_compcv = evalcv; | |
3324 | ||
a0d0e21e LW |
3325 | /* try to compile it */ |
3326 | ||
5f66b61c | 3327 | PL_eval_root = NULL; |
3280af22 | 3328 | PL_curcop = &PL_compiling; |
26c9400e | 3329 | if ((saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3330 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3331 | else |
3332 | CLEAR_ERRSV(); | |
27e90453 | 3333 | |
377b5421 DM |
3334 | SAVEHINTS(); |
3335 | if (clear_hints) { | |
3336 | PL_hints = 0; | |
3337 | hv_clear(GvHV(PL_hintgv)); | |
3338 | } | |
3339 | else { | |
3340 | PL_hints = saveop->op_private & OPpEVAL_COPHH | |
3341 | ? oldcurcop->cop_hints : saveop->op_targ; | |
4f3e2518 DM |
3342 | |
3343 | /* making 'use re eval' not be in scope when compiling the | |
3344 | * qr/mabye_has_runtime_code_block/ ensures that we don't get | |
3345 | * infinite recursion when S_has_runtime_code() gives a false | |
3346 | * positive: the second time round, HINT_RE_EVAL isn't set so we | |
3347 | * don't bother calling S_has_runtime_code() */ | |
3348 | if (PL_in_eval & EVAL_RE_REPARSING) | |
3349 | PL_hints &= ~HINT_RE_EVAL; | |
3350 | ||
377b5421 DM |
3351 | if (hh) { |
3352 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3353 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
3354 | GvHV(PL_hintgv) = hh; | |
3355 | } | |
3356 | } | |
3357 | SAVECOMPILEWARNINGS(); | |
3358 | if (clear_hints) { | |
3359 | if (PL_dowarn & G_WARN_ALL_ON) | |
3360 | PL_compiling.cop_warnings = pWARN_ALL ; | |
3361 | else if (PL_dowarn & G_WARN_ALL_OFF) | |
3362 | PL_compiling.cop_warnings = pWARN_NONE ; | |
3363 | else | |
3364 | PL_compiling.cop_warnings = pWARN_STD ; | |
3365 | } | |
3366 | else { | |
3367 | PL_compiling.cop_warnings = | |
3368 | DUP_WARNINGS(oldcurcop->cop_warnings); | |
3369 | cophh_free(CopHINTHASH_get(&PL_compiling)); | |
3370 | if (Perl_cop_fetch_label(aTHX_ oldcurcop, NULL, NULL)) { | |
3371 | /* The label, if present, is the first entry on the chain. So rather | |
3372 | than writing a blank label in front of it (which involves an | |
3373 | allocation), just use the next entry in the chain. */ | |
3374 | PL_compiling.cop_hints_hash | |
3375 | = cophh_copy(oldcurcop->cop_hints_hash->refcounted_he_next); | |
3376 | /* Check the assumption that this removed the label. */ | |
3377 | assert(Perl_cop_fetch_label(aTHX_ &PL_compiling, NULL, NULL) == NULL); | |
f45b078d | 3378 | } |
377b5421 DM |
3379 | else |
3380 | PL_compiling.cop_hints_hash = cophh_copy(oldcurcop->cop_hints_hash); | |
3381 | } | |
f45b078d | 3382 | |
a88d97bf | 3383 | CALL_BLOCK_HOOKS(bhk_eval, saveop); |
52db365a | 3384 | |
27e90453 DM |
3385 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3386 | * so honour CATCH_GET and trap it here if necessary */ | |
3387 | ||
28ac2b49 | 3388 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3389 | |
3390 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3391 | SV **newsp; /* Used by POPBLOCK. */ |
d164302a | 3392 | PERL_CONTEXT *cx; |
27e90453 | 3393 | I32 optype; /* Used by POPEVAL. */ |
d164302a | 3394 | SV *namesv; |
eed484f9 | 3395 | SV *errsv = NULL; |
bfed75c6 | 3396 | |
d164302a GG |
3397 | cx = NULL; |
3398 | namesv = NULL; | |
27e90453 DM |
3399 | PERL_UNUSED_VAR(newsp); |
3400 | PERL_UNUSED_VAR(optype); | |
3401 | ||
c86ffc32 DM |
3402 | /* note that if yystatus == 3, then the EVAL CX block has already |
3403 | * been popped, and various vars restored */ | |
533c011a | 3404 | PL_op = saveop; |
27e90453 | 3405 | if (yystatus != 3) { |
c86ffc32 DM |
3406 | if (PL_eval_root) { |
3407 | op_free(PL_eval_root); | |
3408 | PL_eval_root = NULL; | |
3409 | } | |
27e90453 | 3410 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
377b5421 DM |
3411 | POPBLOCK(cx,PL_curpm); |
3412 | POPEVAL(cx); | |
3413 | namesv = cx->blk_eval.old_namesv; | |
bbde7ba3 | 3414 | /* POPBLOCK renders LEAVE_with_name("evalcomp") unnecessary. */ |
27e90453 | 3415 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ |
cd6472fc | 3416 | } |
9d4ba2ae | 3417 | |
eed484f9 | 3418 | errsv = ERRSV; |
27e90453 | 3419 | if (in_require) { |
b6494f15 VP |
3420 | if (!cx) { |
3421 | /* If cx is still NULL, it means that we didn't go in the | |
3422 | * POPEVAL branch. */ | |
3423 | cx = &cxstack[cxstack_ix]; | |
3424 | assert(CxTYPE(cx) == CXt_EVAL); | |
3425 | namesv = cx->blk_eval.old_namesv; | |
3426 | } | |
3427 | (void)hv_store(GvHVn(PL_incgv), | |
ecad31f0 | 3428 | SvPVX_const(namesv), |
c60dbbc3 | 3429 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 | 3430 | &PL_sv_undef, 0); |
ecad31f0 | 3431 | Perl_croak(aTHX_ "%"SVf"Compilation failed in require", |
eed484f9 DD |
3432 | SVfARG(errsv |
3433 | ? errsv | |
ecad31f0 | 3434 | : newSVpvs_flags("Unknown error\n", SVs_TEMP))); |
5a844595 | 3435 | } |
9d7f88dd | 3436 | else { |
eed484f9 DD |
3437 | if (!*(SvPV_nolen_const(errsv))) { |
3438 | sv_setpvs(errsv, "Compilation error"); | |
9d7f88dd SR |
3439 | } |
3440 | } | |
2bf54cc6 | 3441 | if (gimme != G_ARRAY) PUSHs(&PL_sv_undef); |
410be5db DM |
3442 | PUTBACK; |
3443 | return FALSE; | |
a0d0e21e | 3444 | } |
104a8185 DM |
3445 | else |
3446 | LEAVE_with_name("evalcomp"); | |
3447 | ||
57843af0 | 3448 | CopLINE_set(&PL_compiling, 0); |
104a8185 | 3449 | SAVEFREEOP(PL_eval_root); |
8be227ab | 3450 | cv_forget_slab(evalcv); |
0c58d367 | 3451 | |
a0d0e21e LW |
3452 | DEBUG_x(dump_eval()); |
3453 | ||
55497cff | 3454 | /* Register with debugger: */ |
26c9400e | 3455 | if (PERLDB_INTER && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3456 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3457 | if (cv) { |
3458 | dSP; | |
924508f0 | 3459 | PUSHMARK(SP); |
ad64d0ec | 3460 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3461 | PUTBACK; |
ad64d0ec | 3462 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3463 | } |
3464 | } | |
3465 | ||
8ed49485 FC |
3466 | if (PL_unitcheckav) { |
3467 | OP *es = PL_eval_start; | |
3c10abe3 | 3468 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3469 | PL_eval_start = es; |
3470 | } | |
3c10abe3 | 3471 | |
a0d0e21e LW |
3472 | /* compiled okay, so do it */ |
3473 | ||
676a678a | 3474 | CvDEPTH(evalcv) = 1; |
3280af22 | 3475 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
533c011a | 3476 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3477 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3478 | |
410be5db DM |
3479 | PUTBACK; |
3480 | return TRUE; | |
a0d0e21e LW |
3481 | } |
3482 | ||
a6c40364 | 3483 | STATIC PerlIO * |
282b29ee | 3484 | S_check_type_and_open(pTHX_ SV *name) |
ce8abf5f SP |
3485 | { |
3486 | Stat_t st; | |
41188aa0 | 3487 | STRLEN len; |
d345f487 | 3488 | PerlIO * retio; |
41188aa0 | 3489 | const char *p = SvPV_const(name, len); |
c8028aa6 | 3490 | int st_rc; |
df528165 | 3491 | |
7918f24d NC |
3492 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3493 | ||
c8028aa6 TC |
3494 | /* checking here captures a reasonable error message when |
3495 | * PERL_DISABLE_PMC is true, but when PMC checks are enabled, the | |
3496 | * user gets a confusing message about looking for the .pmc file | |
3497 | * rather than for the .pm file. | |
3498 | * This check prevents a \0 in @INC causing problems. | |
3499 | */ | |
41188aa0 | 3500 | if (!IS_SAFE_PATHNAME(p, len, "require")) |
c8028aa6 TC |
3501 | return NULL; |
3502 | ||
d345f487 DD |
3503 | /* on Win32 stat is expensive (it does an open() and close() twice and |
3504 | a couple other IO calls), the open will fail with a dir on its own with | |
3505 | errno EACCES, so only do a stat to separate a dir from a real EACCES | |
3506 | caused by user perms */ | |
3507 | #ifndef WIN32 | |
b2da7ead DM |
3508 | /* we use the value of errno later to see how stat() or open() failed. |
3509 | * We don't want it set if the stat succeeded but we still failed, | |
3510 | * such as if the name exists, but is a directory */ | |
3511 | errno = 0; | |
3512 | ||
c8028aa6 TC |
3513 | st_rc = PerlLIO_stat(p, &st); |
3514 | ||
6b845e56 | 3515 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3516 | return NULL; |
ce8abf5f | 3517 | } |
d345f487 | 3518 | #endif |
ce8abf5f | 3519 | |
97cb92d6 | 3520 | #if !defined(PERLIO_IS_STDIO) |
d345f487 | 3521 | retio = PerlIO_openn(aTHX_ ":", PERL_SCRIPT_MODE, -1, 0, 0, NULL, 1, &name); |
ccb84406 | 3522 | #else |
d345f487 DD |
3523 | retio = PerlIO_open(p, PERL_SCRIPT_MODE); |
3524 | #endif | |
3525 | #ifdef WIN32 | |
3526 | /* EACCES stops the INC search early in pp_require to implement | |
3527 | feature RT #113422 */ | |
3528 | if(!retio && errno == EACCES) { /* exists but probably a directory */ | |
3529 | int eno; | |
3530 | st_rc = PerlLIO_stat(p, &st); | |
3531 | if (st_rc >= 0) { | |
3532 | if(S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) | |
3533 | eno = 0; | |
3534 | else | |
3535 | eno = EACCES; | |
3536 | errno = eno; | |
3537 | } | |
3538 | } | |
ccb84406 | 3539 | #endif |
d345f487 | 3540 | return retio; |
ce8abf5f SP |
3541 | } |
3542 | ||
75c20bac | 3543 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3544 | STATIC PerlIO * |
282b29ee | 3545 | S_doopen_pm(pTHX_ SV *name) |
b295d113 | 3546 | { |
282b29ee NC |
3547 | STRLEN namelen; |
3548 | const char *p = SvPV_const(name, namelen); | |
b295d113 | 3549 | |
7918f24d NC |
3550 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3551 | ||
c8028aa6 TC |
3552 | /* check the name before trying for the .pmc name to avoid the |
3553 | * warning referring to the .pmc which the user probably doesn't | |
3554 | * know or care about | |
3555 | */ | |
41188aa0 | 3556 | if (!IS_SAFE_PATHNAME(p, namelen, "require")) |
c8028aa6 TC |
3557 | return NULL; |
3558 | ||
282b29ee | 3559 | if (namelen > 3 && memEQs(p + namelen - 3, 3, ".pm")) { |
eb70bb4a | 3560 | SV *const pmcsv = sv_newmortal(); |
a6c40364 | 3561 | Stat_t pmcstat; |
50b8ed39 | 3562 | |
eb70bb4a | 3563 | SvSetSV_nosteal(pmcsv,name); |
46e2868e | 3564 | sv_catpvs(pmcsv, "c"); |
50b8ed39 | 3565 | |
282b29ee NC |
3566 | if (PerlLIO_stat(SvPV_nolen_const(pmcsv), &pmcstat) >= 0) |
3567 | return check_type_and_open(pmcsv); | |
a6c40364 | 3568 | } |
282b29ee | 3569 | return check_type_and_open(name); |
75c20bac | 3570 | } |
7925835c | 3571 | #else |
282b29ee | 3572 | # define doopen_pm(name) check_type_and_open(name) |
7925835c | 3573 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3574 | |
511712dc | 3575 | /* require doesn't search for absolute names, or when the name is |
f6bab5f6 | 3576 | explicitly relative the current directory */ |
511712dc TC |
3577 | PERL_STATIC_INLINE bool |
3578 | S_path_is_searchable(const char *name) | |
3579 | { | |
3580 | PERL_ARGS_ASSERT_PATH_IS_SEARCHABLE; | |
3581 | ||
3582 | if (PERL_FILE_IS_ABSOLUTE(name) | |
3583 | #ifdef WIN32 | |
3584 | || (*name == '.' && ((name[1] == '/' || | |
3585 | (name[1] == '.' && name[2] == '/')) | |
3586 | || (name[1] == '\\' || | |
3587 | ( name[1] == '.' && name[2] == '\\'))) | |
3588 | ) | |
3589 | #else | |
3590 | || (*name == '.' && (name[1] == '/' || | |
3591 | (name[1] == '.' && name[2] == '/'))) | |
3592 | #endif | |
3593 | ) | |
3594 | { | |
3595 | return FALSE; | |
3596 | } | |
3597 | else | |
3598 | return TRUE; | |
3599 | } | |
3600 | ||
b1c05ba5 DM |
3601 | |
3602 | /* also used for: pp_dofile() */ | |
3603 | ||
a0d0e21e LW |
3604 | PP(pp_require) |
3605 | { | |
20b7effb | 3606 | dSP; |
eb578fdb | 3607 | PERL_CONTEXT *cx; |
a0d0e21e | 3608 | SV *sv; |
5c144d81 | 3609 | const char *name; |
6132ea6c | 3610 | STRLEN len; |
4492be7a JM |
3611 | char * unixname; |
3612 | STRLEN unixlen; | |
62f5ad7a | 3613 | #ifdef VMS |
4492be7a | 3614 | int vms_unixname = 0; |
155f4c25 | 3615 | char *unixdir; |
62f5ad7a | 3616 | #endif |
c445ea15 AL |
3617 | const char *tryname = NULL; |
3618 | SV *namesv = NULL; | |
f54cb97a | 3619 | const I32 gimme = GIMME_V; |
bbed91b5 | 3620 | int filter_has_file = 0; |
c445ea15 | 3621 | PerlIO *tryrsfp = NULL; |
34113e50 | 3622 | SV *filter_cache = NULL; |
c445ea15 AL |
3623 | SV *filter_state = NULL; |
3624 | SV *filter_sub = NULL; | |
3625 | SV *hook_sv = NULL; | |
6ec9efec | 3626 | OP *op; |
83b195e4 | 3627 | int saved_errno; |
511712dc | 3628 | bool path_searchable; |
a0d0e21e LW |
3629 | |
3630 | sv = POPs; | |
672794ca | 3631 | SvGETMAGIC(sv); |
d7aa5382 | 3632 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d086148c | 3633 | sv = sv_2mortal(new_version(sv)); |
88010bae | 3634 | if (!Perl_sv_derived_from_pvn(aTHX_ PL_patchlevel, STR_WITH_LEN("version"), 0)) |
ac0e6a2f | 3635 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3636 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3637 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3638 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
e753e3b1 FC |
3639 | SVfARG(sv_2mortal(vnormal(sv))), |
3640 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3641 | ); | |
468aa647 RGS |
3642 | } |
3643 | else { | |
d1029faa JP |
3644 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3645 | I32 first = 0; | |
3646 | AV *lav; | |
3647 | SV * const req = SvRV(sv); | |
85fbaab2 | 3648 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3649 | |
3650 | /* get the left hand term */ | |
502c6561 | 3651 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3652 | |
3653 | first = SvIV(*av_fetch(lav,0,0)); | |
3654 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3655 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
b9f2b683 | 3656 | || av_tindex(lav) > 1 /* FP with > 3 digits */ |
d1029faa JP |
3657 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ |
3658 | ) { | |
3659 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
9d056fb0 FC |
3660 | "%"SVf", stopped", |
3661 | SVfARG(sv_2mortal(vnormal(req))), | |
3662 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3663 | ); | |
d1029faa JP |
3664 | } |
3665 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3666 | SV *hintsv; |
d1029faa JP |
3667 | I32 second = 0; |
3668 | ||
b9f2b683 | 3669 | if (av_tindex(lav)>=1) |
d1029faa JP |
3670 | second = SvIV(*av_fetch(lav,1,0)); |
3671 | ||
3672 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3673 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3674 | (int)first, (int)second); | |
d1029faa JP |
3675 | upg_version(hintsv, TRUE); |
3676 | ||
3677 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3678 | "--this is only %"SVf", stopped", | |
1be7d6f3 FC |
3679 | SVfARG(sv_2mortal(vnormal(req))), |
3680 | SVfARG(sv_2mortal(vnormal(sv_2mortal(hintsv)))), | |
3681 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3682 | ); | |
d1029faa JP |
3683 | } |
3684 | } | |
468aa647 | 3685 | } |
d7aa5382 | 3686 | |
7dfde25d | 3687 | RETPUSHYES; |
a0d0e21e | 3688 | } |
f04d2c34 YO |
3689 | if (!SvOK(sv)) |
3690 | DIE(aTHX_ "Missing or undefined argument to require"); | |
672794ca | 3691 | name = SvPV_nomg_const(sv, len); |
6132ea6c | 3692 | if (!(name && len > 0 && *name)) |
f04d2c34 YO |
3693 | DIE(aTHX_ "Missing or undefined argument to require"); |
3694 | ||
41188aa0 | 3695 | if (!IS_SAFE_PATHNAME(name, len, "require")) { |
c8028aa6 TC |
3696 | DIE(aTHX_ "Can't locate %s: %s", |
3697 | pv_escape(newSVpvs_flags("",SVs_TEMP),SvPVX(sv),SvCUR(sv), | |
3698 | SvCUR(sv)*2,NULL, SvUTF8(sv)?PERL_PV_ESCAPE_UNI:0), | |
3699 | Strerror(ENOENT)); | |
3700 | } | |
4633a7c4 | 3701 | TAINT_PROPER("require"); |
4492be7a | 3702 | |
511712dc | 3703 | path_searchable = path_is_searchable(name); |
4492be7a JM |
3704 | |
3705 | #ifdef VMS | |
3706 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3707 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3708 | * can result in a module being pulled in more than once. | |
3709 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3710 | * name can be translated to UNIX. | |
3711 | */ | |
155f4c25 | 3712 | |
8de90695 FC |
3713 | if ((unixname = |
3714 | tounixspec(name, SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1))))) | |
3715 | != NULL) { | |
4492be7a JM |
3716 | unixlen = strlen(unixname); |
3717 | vms_unixname = 1; | |
3718 | } | |
3719 | else | |
3720 | #endif | |
3721 | { | |
3722 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3723 | * through. | |
3724 | */ | |
3725 | unixname = (char *) name; | |
3726 | unixlen = len; | |
3727 | } | |
44f8325f | 3728 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3729 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3730 | unixname, unixlen, 0); | |
44f8325f AL |
3731 | if ( svp ) { |
3732 | if (*svp != &PL_sv_undef) | |
3733 | RETPUSHYES; | |
3734 | else | |
087b5369 RD |
3735 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3736 | "Compilation failed in require", unixname); | |
44f8325f | 3737 | } |
4d8b06f1 | 3738 | } |
a0d0e21e | 3739 | |
32aeab29 SM |
3740 | LOADING_FILE_PROBE(unixname); |
3741 | ||
a0d0e21e LW |
3742 | /* prepare to compile file */ |
3743 | ||
511712dc | 3744 | if (!path_searchable) { |
282b29ee | 3745 | /* At this point, name is SvPVX(sv) */ |
46fc3d4c | 3746 | tryname = name; |
282b29ee | 3747 | tryrsfp = doopen_pm(sv); |
bf4acbe4 | 3748 | } |
511712dc | 3749 | if (!tryrsfp && !(errno == EACCES && !path_searchable)) { |
44f8325f | 3750 | AV * const ar = GvAVn(PL_incgv); |
c70927a6 | 3751 | SSize_t i; |
748a9306 | 3752 | #ifdef VMS |
4492be7a | 3753 | if (vms_unixname) |
46fc3d4c | 3754 | #endif |
3755 | { | |
9ffd39ab | 3756 | SV *nsv = sv; |
d0328fd7 | 3757 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3758 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3759 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3760 | |
6567ce24 | 3761 | SvGETMAGIC(dirsv); |
bbed91b5 KF |
3762 | if (SvROK(dirsv)) { |
3763 | int count; | |
a3b58a99 | 3764 | SV **svp; |
bbed91b5 KF |
3765 | SV *loader = dirsv; |
3766 | ||
e14e2dc8 | 3767 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
6567ce24 | 3768 | && !SvOBJECT(SvRV(loader))) |
e14e2dc8 | 3769 | { |
502c6561 | 3770 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
6567ce24 | 3771 | SvGETMAGIC(loader); |
bbed91b5 KF |
3772 | } |
3773 | ||
b900a521 | 3774 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3775 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3776 | tryname = SvPVX_const(namesv); |
c445ea15 | 3777 | tryrsfp = NULL; |
bbed91b5 | 3778 | |
9ffd39ab FC |
3779 | if (SvPADTMP(nsv)) { |
3780 | nsv = sv_newmortal(); | |
3781 | SvSetSV_nosteal(nsv,sv); | |
3782 | } | |
901ee108 FC |
3783 | |
3784 | ENTER_with_name("call_INC"); | |
3785 | SAVETMPS; | |
bbed91b5 KF |
3786 | EXTEND(SP, 2); |
3787 | ||
3788 | PUSHMARK(SP); | |
3789 | PUSHs(dirsv); | |
9ffd39ab | 3790 | PUSHs(nsv); |
bbed91b5 | 3791 | PUTBACK; |
6567ce24 FC |
3792 | if (SvGMAGICAL(loader)) { |
3793 | SV *l = sv_newmortal(); | |
3794 | sv_setsv_nomg(l, loader); | |
3795 | loader = l; | |
3796 | } | |
e982885c NC |
3797 | if (sv_isobject(loader)) |
3798 | count = call_method("INC", G_ARRAY); | |
3799 | else | |
3800 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3801 | SPAGAIN; |
3802 | ||
3803 | if (count > 0) { | |
3804 | int i = 0; | |
3805 | SV *arg; | |
3806 | ||
3807 | SP -= count - 1; | |
3808 | arg = SP[i++]; | |
3809 | ||
34113e50 NC |
3810 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3811 | && !isGV_with_GP(SvRV(arg))) { | |
3812 | filter_cache = SvRV(arg); | |
34113e50 NC |
3813 | |
3814 | if (i < count) { | |
3815 | arg = SP[i++]; | |
3816 | } | |
3817 | } | |
3818 | ||
6e592b3a | 3819 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3820 | arg = SvRV(arg); |
3821 | } | |
3822 | ||
6e592b3a | 3823 | if (isGV_with_GP(arg)) { |
159b6efe | 3824 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3825 | |
3826 | ++filter_has_file; | |
3827 | ||
3828 | if (io) { | |
3829 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3830 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3831 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3832 | } |
0f7de14d NC |
3833 | IoIFP(io) = NULL; |
3834 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3835 | } |
3836 | ||
3837 | if (i < count) { | |
3838 | arg = SP[i++]; | |
3839 | } | |
3840 | } | |
3841 | ||
3842 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3843 | filter_sub = arg; | |
74c765eb | 3844 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3845 | |
3846 | if (i < count) { | |
3847 | filter_state = SP[i]; | |
b37c2d43 | 3848 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3849 | } |
34113e50 | 3850 | } |
bbed91b5 | 3851 | |
34113e50 NC |
3852 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3853 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3854 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3855 | } |
1d06aecd | 3856 | SP--; |
bbed91b5 KF |
3857 | } |
3858 | ||
c39fcc09 FC |
3859 | /* FREETMPS may free our filter_cache */ |
3860 | SvREFCNT_inc_simple_void(filter_cache); | |
3861 | ||
bbed91b5 KF |
3862 | PUTBACK; |
3863 | FREETMPS; | |
d343c3ef | 3864 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3865 | |
c39fcc09 FC |
3866 | /* Now re-mortalize it. */ |
3867 | sv_2mortal(filter_cache); | |
3868 | ||
c5f55552 NC |
3869 | /* Adjust file name if the hook has set an %INC entry. |
3870 | This needs to happen after the FREETMPS above. */ | |
3871 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3872 | if (svp) | |
3873 | tryname = SvPV_nolen_const(*svp); | |
3874 | ||
bbed91b5 | 3875 | if (tryrsfp) { |
89ccab8c | 3876 | hook_sv = dirsv; |
bbed91b5 KF |
3877 | break; |
3878 | } | |
3879 | ||
3880 | filter_has_file = 0; | |
9b7d7782 | 3881 | filter_cache = NULL; |
bbed91b5 | 3882 | if (filter_state) { |
762333d9 | 3883 | SvREFCNT_dec_NN(filter_state); |
c445ea15 | 3884 | filter_state = NULL; |
bbed91b5 KF |
3885 | } |
3886 | if (filter_sub) { | |
762333d9 | 3887 | SvREFCNT_dec_NN(filter_sub); |
c445ea15 | 3888 | filter_sub = NULL; |
bbed91b5 KF |
3889 | } |
3890 | } | |
3891 | else { | |
511712dc | 3892 | if (path_searchable) { |
b640a14a NC |
3893 | const char *dir; |
3894 | STRLEN dirlen; | |
3895 | ||
3896 | if (SvOK(dirsv)) { | |
6567ce24 | 3897 | dir = SvPV_nomg_const(dirsv, dirlen); |
b640a14a NC |
3898 | } else { |
3899 | dir = ""; | |
3900 | dirlen = 0; | |
3901 | } | |
3902 | ||
ddc65b67 CB |
3903 | if (!IS_SAFE_SYSCALL(dir, dirlen, "@INC entry", "require")) |
3904 | continue; | |
e37778c2 | 3905 | #ifdef VMS |
8de90695 FC |
3906 | if ((unixdir = |
3907 | tounixpath(dir, SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1))))) | |
3908 | == NULL) | |
bbed91b5 KF |
3909 | continue; |
3910 | sv_setpv(namesv, unixdir); | |
3911 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3912 | #else |
3913 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3914 | if (PL_origfilename[0] && |
3915 | PL_origfilename[1] == ':' && | |
3916 | !(dir[0] && dir[1] == ':')) | |
3917 | Perl_sv_setpvf(aTHX_ namesv, | |
3918 | "%c:%s\\%s", | |
3919 | PL_origfilename[0], | |
3920 | dir, name); | |
3921 | else | |
3922 | Perl_sv_setpvf(aTHX_ namesv, | |
3923 | "%s\\%s", | |
3924 | dir, name); | |
e37778c2 | 3925 | # else |
b640a14a NC |
3926 | /* The equivalent of |
3927 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3928 | but without the need to parse the format string, or | |
3929 | call strlen on either pointer, and with the correct | |
3930 | allocation up front. */ | |
3931 | { | |
3932 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3933 | ||
3934 | memcpy(tmp, dir, dirlen); | |
3935 | tmp +=dirlen; | |
6b0bdd7f MH |
3936 | |
3937 | /* Avoid '<dir>//<file>' */ | |
3938 | if (!dirlen || *(tmp-1) != '/') { | |
3939 | *tmp++ = '/'; | |
9fdd5a7a MH |
3940 | } else { |
3941 | /* So SvCUR_set reports the correct length below */ | |
3942 | dirlen--; | |
6b0bdd7f MH |
3943 | } |
3944 | ||
b640a14a NC |
3945 | /* name came from an SV, so it will have a '\0' at the |
3946 | end that we can copy as part of this memcpy(). */ | |
3947 | memcpy(tmp, name, len + 1); | |
3948 | ||
3949 | SvCUR_set(namesv, dirlen + len + 1); | |
282b29ee | 3950 | SvPOK_on(namesv); |
b640a14a | 3951 | } |
27da23d5 | 3952 | # endif |
bf4acbe4 | 3953 | #endif |
bbed91b5 | 3954 | TAINT_PROPER("require"); |
349d4f2f | 3955 | tryname = SvPVX_const(namesv); |
282b29ee | 3956 | tryrsfp = doopen_pm(namesv); |
bbed91b5 | 3957 | if (tryrsfp) { |
e63be746 RGS |
3958 | if (tryname[0] == '.' && tryname[1] == '/') { |
3959 | ++tryname; | |
4910606a | 3960 | while (*++tryname == '/') {} |
e63be746 | 3961 | } |
bbed91b5 KF |
3962 | break; |
3963 | } | |
2433d39e BF |
3964 | else if (errno == EMFILE || errno == EACCES) { |
3965 | /* no point in trying other paths if out of handles; | |
3966 | * on the other hand, if we couldn't open one of the | |
3967 | * files, then going on with the search could lead to | |
3968 | * unexpected results; see perl #113422 | |
3969 | */ | |
3970 | break; | |
3971 | } | |
be4b629d | 3972 | } |
46fc3d4c | 3973 | } |
a0d0e21e LW |
3974 | } |
3975 | } | |
3976 | } | |
83b195e4 | 3977 | saved_errno = errno; /* sv_2mortal can realloc things */ |
b2ef6d44 | 3978 | sv_2mortal(namesv); |
a0d0e21e | 3979 | if (!tryrsfp) { |
533c011a | 3980 | if (PL_op->op_type == OP_REQUIRE) { |
83b195e4 | 3981 | if(saved_errno == EMFILE || saved_errno == EACCES) { |
c9d5e35e | 3982 | /* diag_listed_as: Can't locate %s */ |
e2ce0950 P |
3983 | DIE(aTHX_ "Can't locate %s: %s: %s", |
3984 | name, tryname, Strerror(saved_errno)); | |
e31de809 SP |
3985 | } else { |
3986 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3987 | AV * const ar = GvAVn(PL_incgv); |
c70927a6 | 3988 | SSize_t i; |
1e5f02b3 | 3989 | SV *const msg = newSVpvs_flags("", SVs_TEMP); |
c9d5e35e NC |
3990 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
3991 | for (i = 0; i <= AvFILL(ar); i++) { | |
3992 | sv_catpvs(inc, " "); | |
3993 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
3994 | } | |
f7ee53b5 PJ |
3995 | if (len >= 4 && memEQ(name + len - 3, ".pm", 4)) { |
3996 | const char *c, *e = name + len - 3; | |
3997 | sv_catpv(msg, " (you may need to install the "); | |
3998 | for (c = name; c < e; c++) { | |
3999 | if (*c == '/') { | |
46e2868e | 4000 | sv_catpvs(msg, "::"); |
f7ee53b5 PJ |
4001 | } |
4002 | else { | |
4003 | sv_catpvn(msg, c, 1); | |
4004 | } | |
4005 | } | |
4006 | sv_catpv(msg, " module)"); | |
4007 | } | |
4008 | else if (len >= 2 && memEQ(name + len - 2, ".h", 3)) { | |
4009 | sv_catpv(msg, " (change .h to .ph maybe?) (did you run h2ph?)"); | |
4010 | } | |
4011 | else if (len >= 3 && memEQ(name + len - 3, ".ph", 4)) { | |
4012 | sv_catpv(msg, " (did you run h2ph?)"); | |
4013 | } | |
c9d5e35e NC |
4014 | |
4015 | /* diag_listed_as: Can't locate %s */ | |
4016 | DIE(aTHX_ | |
f7ee53b5 PJ |
4017 | "Can't locate %s in @INC%" SVf " (@INC contains:%" SVf ")", |
4018 | name, msg, inc); | |
c9d5e35e | 4019 | } |
2683423c | 4020 | } |
c9d5e35e | 4021 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
4022 | } |
4023 | ||
a3ff80c1 | 4024 | CLEAR_ERRSV(); |
a0d0e21e LW |
4025 | RETPUSHUNDEF; |
4026 | } | |
d8bfb8bd | 4027 | else |
93189314 | 4028 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
4029 | |
4030 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 4031 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 4032 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 4033 | if (!hook_sv) { |
4492be7a | 4034 | (void)hv_store(GvHVn(PL_incgv), |
b2ef6d44 | 4035 | unixname, unixlen, newSVpv(tryname,0),0); |
44f8325f | 4036 | } else { |
4492be7a | 4037 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 4038 | if (!svp) |
4492be7a JM |
4039 | (void)hv_store(GvHVn(PL_incgv), |
4040 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 4041 | } |
a0d0e21e | 4042 | |
d343c3ef | 4043 | ENTER_with_name("eval"); |
a0d0e21e | 4044 | SAVETMPS; |
b2ef6d44 FC |
4045 | SAVECOPFILE_FREE(&PL_compiling); |
4046 | CopFILE_set(&PL_compiling, tryname); | |
8eaa0acf | 4047 | lex_start(NULL, tryrsfp, 0); |
e50aee73 | 4048 | |
34113e50 | 4049 | if (filter_sub || filter_cache) { |
4464f08e NC |
4050 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
4051 | than hanging another SV from it. In turn, filter_add() optionally | |
4052 | takes the SV to use as the filter (or creates a new SV if passed | |
4053 | NULL), so simply pass in whatever value filter_cache has. */ | |
9b7d7782 FC |
4054 | SV * const fc = filter_cache ? newSV(0) : NULL; |
4055 | SV *datasv; | |
4056 | if (fc) sv_copypv(fc, filter_cache); | |
4057 | datasv = filter_add(S_run_user_filter, fc); | |
bbed91b5 | 4058 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
4059 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
4060 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
4061 | } |
4062 | ||
4063 | /* switch to eval mode */ | |
a0d0e21e | 4064 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 4065 | PUSHEVAL(cx, name); |
f39bc417 | 4066 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 4067 | |
57843af0 GS |
4068 | SAVECOPLINE(&PL_compiling); |
4069 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
4070 | |
4071 | PUTBACK; | |
6ec9efec | 4072 | |
104a8185 | 4073 | if (doeval(gimme, NULL, PL_curcop->cop_seq, NULL)) |
410be5db DM |
4074 | op = DOCATCH(PL_eval_start); |
4075 | else | |
4076 | op = PL_op->op_next; | |
bfed75c6 | 4077 | |
32aeab29 SM |
4078 | LOADED_FILE_PROBE(unixname); |
4079 | ||
6ec9efec | 4080 | return op; |
a0d0e21e LW |
4081 | } |
4082 | ||
996c9baa VP |
4083 | /* This is a op added to hold the hints hash for |
4084 | pp_entereval. The hash can be modified by the code | |
4085 | being eval'ed, so we return a copy instead. */ | |
4086 | ||
4087 | PP(pp_hintseval) | |
4088 | { | |
996c9baa | 4089 | dSP; |
defdfed5 | 4090 | mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
4091 | RETURN; |
4092 | } | |
4093 | ||
4094 | ||
a0d0e21e LW |
4095 | PP(pp_entereval) |
4096 | { | |
20b7effb | 4097 | dSP; |
eb578fdb | 4098 | PERL_CONTEXT *cx; |
0d863452 | 4099 | SV *sv; |
890ce7af | 4100 | const I32 gimme = GIMME_V; |
fd06b02c | 4101 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 | 4102 | char tbuf[TYPE_DIGITS(long) + 12]; |
78da7625 | 4103 | bool saved_delete = FALSE; |
83ee9e09 | 4104 | char *tmpbuf = tbuf; |
a0d0e21e | 4105 | STRLEN len; |
a3985cdc | 4106 | CV* runcv; |
0abcdfa4 | 4107 | U32 seq, lex_flags = 0; |
c445ea15 | 4108 | HV *saved_hh = NULL; |
60d63348 | 4109 | const bool bytes = PL_op->op_private & OPpEVAL_BYTES; |
e389bba9 | 4110 | |
0d863452 | 4111 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 4112 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 | 4113 | } |
bc344123 FC |
4114 | else if (PL_hints & HINT_LOCALIZE_HH || ( |
4115 | PL_op->op_private & OPpEVAL_COPHH | |
4116 | && PL_curcop->cop_hints & HINT_LOCALIZE_HH | |
4117 | )) { | |
7d789282 FC |
4118 | saved_hh = cop_hints_2hv(PL_curcop, 0); |
4119 | hv_magic(saved_hh, NULL, PERL_MAGIC_hints); | |
4120 | } | |
0d863452 | 4121 | sv = POPs; |
895b760f DM |
4122 | if (!SvPOK(sv)) { |
4123 | /* make sure we've got a plain PV (no overload etc) before testing | |
4124 | * for taint. Making a copy here is probably overkill, but better | |
4125 | * safe than sorry */ | |
0479a84a NC |
4126 | STRLEN len; |
4127 | const char * const p = SvPV_const(sv, len); | |
4128 | ||
4129 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
0abcdfa4 | 4130 | lex_flags |= LEX_START_COPIED; |
7d789282 | 4131 | |
60d63348 | 4132 | if (bytes && SvUTF8(sv)) |
7d789282 FC |
4133 | SvPVbyte_force(sv, len); |
4134 | } | |
60d63348 | 4135 | else if (bytes && SvUTF8(sv)) { |
e1fa07e3 | 4136 | /* Don't modify someone else's scalar */ |
7d789282 FC |
4137 | STRLEN len; |
4138 | sv = newSVsv(sv); | |
5cefc8c1 | 4139 | (void)sv_2mortal(sv); |
7d789282 | 4140 | SvPVbyte_force(sv,len); |
0abcdfa4 | 4141 | lex_flags |= LEX_START_COPIED; |
895b760f | 4142 | } |
a0d0e21e | 4143 | |
af2d3def | 4144 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 4145 | TAINT_PROPER("eval"); |
a0d0e21e | 4146 | |
d343c3ef | 4147 | ENTER_with_name("eval"); |
0abcdfa4 | 4148 | lex_start(sv, NULL, lex_flags | (PL_op->op_private & OPpEVAL_UNICODE |
60d63348 FC |
4149 | ? LEX_IGNORE_UTF8_HINTS |
4150 | : bytes ? LEX_EVALBYTES : LEX_START_SAME_FILTER | |
0abcdfa4 | 4151 | ) |
60d63348 | 4152 | ); |
748a9306 | 4153 | SAVETMPS; |
ac27b0f5 | 4154 | |
a0d0e21e LW |
4155 | /* switch to eval mode */ |
4156 | ||
83ee9e09 | 4157 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
4158 | SV * const temp_sv = sv_newmortal(); |
4159 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
4160 | (unsigned long)++PL_evalseq, |
4161 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
4162 | tmpbuf = SvPVX(temp_sv); |
4163 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
4164 | } |
4165 | else | |
d9fad198 | 4166 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 4167 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 4168 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 4169 | SAVECOPLINE(&PL_compiling); |
57843af0 | 4170 | CopLINE_set(&PL_compiling, 1); |
d819b83a DM |
4171 | /* special case: an eval '' executed within the DB package gets lexically |
4172 | * placed in the first non-DB CV rather than the current CV - this | |
4173 | * allows the debugger to execute code, find lexicals etc, in the | |
4174 | * scope of the code being debugged. Passing &seq gets find_runcv | |
4175 | * to do the dirty work for us */ | |
4176 | runcv = find_runcv(&seq); | |
a0d0e21e | 4177 | |
6b35e009 | 4178 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 4179 | PUSHEVAL(cx, 0); |
f39bc417 | 4180 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
4181 | |
4182 | /* prepare to compile string */ | |
4183 | ||
a44e3ce2 | 4184 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 4185 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
78da7625 | 4186 | else { |
c8cb8d55 FC |
4187 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
4188 | deleting the eval's FILEGV from the stash before gv_check() runs | |
4189 | (i.e. before run-time proper). To work around the coredump that | |
4190 | ensues, we always turn GvMULTI_on for any globals that were | |
4191 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
78da7625 FC |
4192 | char *const safestr = savepvn(tmpbuf, len); |
4193 | SAVEDELETE(PL_defstash, safestr, len); | |
4194 | saved_delete = TRUE; | |
4195 | } | |
4196 | ||
a0d0e21e | 4197 | PUTBACK; |
f9bddea7 | 4198 | |
104a8185 | 4199 | if (doeval(gimme, runcv, seq, saved_hh)) { |
f9bddea7 NC |
4200 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4201 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4202 | : PERLDB_SAVESRC_NOSUBS) { | |
4203 | /* Retain the filegv we created. */ | |
78da7625 | 4204 | } else if (!saved_delete) { |
f9bddea7 NC |
4205 | char *const safestr = savepvn(tmpbuf, len); |
4206 | SAVEDELETE(PL_defstash, safestr, len); | |
4207 | } | |
4208 | return DOCATCH(PL_eval_start); | |
4209 | } else { | |
486ec47a | 4210 | /* We have already left the scope set up earlier thanks to the LEAVE |
f9bddea7 | 4211 | in doeval(). */ |
eb044b10 NC |
4212 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4213 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4214 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 | 4215 | /* Retain the filegv we created. */ |
7857f360 | 4216 | } else if (!saved_delete) { |
f9bddea7 NC |
4217 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); |
4218 | } | |
4219 | return PL_op->op_next; | |
4220 | } | |
a0d0e21e LW |
4221 | } |
4222 | ||
4223 | PP(pp_leaveeval) | |
4224 | { | |
20b7effb | 4225 | dSP; |
a0d0e21e LW |
4226 | SV **newsp; |
4227 | PMOP *newpm; | |
4228 | I32 gimme; | |
eb578fdb | 4229 | PERL_CONTEXT *cx; |
a0d0e21e LW |
4230 | OP *retop; |
4231 | I32 optype; | |
b6494f15 | 4232 | SV *namesv; |
676a678a | 4233 | CV *evalcv; |
7051b8c3 DM |
4234 | /* grab this value before POPEVAL restores old PL_in_eval */ |
4235 | bool keep = cBOOL(PL_in_eval & EVAL_KEEPERR); | |
a0d0e21e | 4236 | |
011c3814 | 4237 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4238 | POPBLOCK(cx,newpm); |
4239 | POPEVAL(cx); | |
b6494f15 | 4240 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 4241 | retop = cx->blk_eval.retop; |
676a678a | 4242 | evalcv = cx->blk_eval.cv; |
a0d0e21e | 4243 | |
2fc507dc | 4244 | SP = leave_common((gimme == G_VOID) ? SP : newsp, SP, newsp, |
2ec7f6f2 | 4245 | gimme, SVs_TEMP, FALSE); |
3280af22 | 4246 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4247 | |
4fdae800 | 4248 | #ifdef DEBUGGING |
676a678a | 4249 | assert(CvDEPTH(evalcv) == 1); |
4fdae800 | 4250 | #endif |
676a678a | 4251 | CvDEPTH(evalcv) = 0; |
4fdae800 | 4252 | |
1ce6579f | 4253 | if (optype == OP_REQUIRE && |
924508f0 | 4254 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 4255 | { |
1ce6579f | 4256 | /* Unassume the success we assumed earlier. */ |
b6494f15 | 4257 | (void)hv_delete(GvHVn(PL_incgv), |
ecad31f0 | 4258 | SvPVX_const(namesv), |
c60dbbc3 | 4259 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 | 4260 | G_DISCARD); |
81d52ecd | 4261 | Perl_die(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); |
a25b5927 | 4262 | NOT_REACHED; /* NOTREACHED */ |
c5df3096 | 4263 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
4264 | } |
4265 | else { | |
d343c3ef | 4266 | LEAVE_with_name("eval"); |
7051b8c3 | 4267 | if (!keep) |
ab69dbc2 | 4268 | CLEAR_ERRSV(); |
a0d0e21e | 4269 | } |
a0d0e21e LW |
4270 | |
4271 | RETURNOP(retop); | |
4272 | } | |
4273 | ||
edb2152a NC |
4274 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
4275 | close to the related Perl_create_eval_scope. */ | |
4276 | void | |
4277 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 4278 | { |
edb2152a NC |
4279 | SV **newsp; |
4280 | PMOP *newpm; | |
4281 | I32 gimme; | |
eb578fdb | 4282 | PERL_CONTEXT *cx; |
edb2152a NC |
4283 | I32 optype; |
4284 | ||
4285 | POPBLOCK(cx,newpm); | |
4286 | POPEVAL(cx); | |
4287 | PL_curpm = newpm; | |
d343c3ef | 4288 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
4289 | PERL_UNUSED_VAR(newsp); |
4290 | PERL_UNUSED_VAR(gimme); | |
4291 | PERL_UNUSED_VAR(optype); | |
4292 | } | |
a0d0e21e | 4293 | |
edb2152a NC |
4294 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
4295 | also needed by Perl_fold_constants. */ | |
4296 | PERL_CONTEXT * | |
4297 | Perl_create_eval_scope(pTHX_ U32 flags) | |
4298 | { | |
4299 | PERL_CONTEXT *cx; | |
4300 | const I32 gimme = GIMME_V; | |
4301 | ||
d343c3ef | 4302 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
4303 | SAVETMPS; |
4304 | ||
edb2152a | 4305 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 4306 | PUSHEVAL(cx, 0); |
a0d0e21e | 4307 | |
faef0170 | 4308 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
4309 | if (flags & G_KEEPERR) |
4310 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
4311 | else |
4312 | CLEAR_ERRSV(); | |
edb2152a NC |
4313 | if (flags & G_FAKINGEVAL) { |
4314 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
4315 | } | |
4316 | return cx; | |
4317 | } | |
4318 | ||
4319 | PP(pp_entertry) | |
4320 | { | |
df528165 | 4321 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4322 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4323 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4324 | } |
4325 | ||
4326 | PP(pp_leavetry) | |
4327 | { | |
20b7effb | 4328 | dSP; |
a0d0e21e LW |
4329 | SV **newsp; |
4330 | PMOP *newpm; | |
4331 | I32 gimme; | |
eb578fdb | 4332 | PERL_CONTEXT *cx; |
a0d0e21e | 4333 | I32 optype; |
334ea179 | 4334 | OP *retop; |
a0d0e21e | 4335 | |
011c3814 | 4336 | PERL_ASYNC_CHECK(); |
a0d0e21e | 4337 | POPBLOCK(cx,newpm); |
334ea179 | 4338 | retop = cx->blk_eval.retop; |
a0d0e21e | 4339 | POPEVAL(cx); |
9d4ba2ae | 4340 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4341 | |
2fc507dc | 4342 | SP = leave_common(newsp, SP, newsp, gimme, |
2ec7f6f2 | 4343 | SVs_PADTMP|SVs_TEMP, FALSE); |
3280af22 | 4344 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4345 | |
d343c3ef | 4346 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4347 | CLEAR_ERRSV(); |
334ea179 | 4348 | RETURNOP(retop); |
a0d0e21e LW |
4349 | } |
4350 | ||
0d863452 RH |
4351 | PP(pp_entergiven) |
4352 | { | |
20b7effb | 4353 | dSP; |
eb578fdb | 4354 | PERL_CONTEXT *cx; |
0d863452 RH |
4355 | const I32 gimme = GIMME_V; |
4356 | ||
d343c3ef | 4357 | ENTER_with_name("given"); |
0d863452 RH |
4358 | SAVETMPS; |
4359 | ||
b5a64814 FC |
4360 | if (PL_op->op_targ) { |
4361 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); | |
4362 | SvREFCNT_dec(PAD_SVl(PL_op->op_targ)); | |
4363 | PAD_SVl(PL_op->op_targ) = SvREFCNT_inc_NN(POPs); | |
4364 | } | |
4365 | else { | |
4366 | SAVE_DEFSV; | |
4367 | DEFSV_set(POPs); | |
4368 | } | |
0d863452 RH |
4369 | |
4370 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4371 | PUSHGIVEN(cx); | |
4372 | ||
4373 | RETURN; | |
4374 | } | |
4375 | ||
4376 | PP(pp_leavegiven) | |
4377 | { | |
20b7effb | 4378 | dSP; |
eb578fdb | 4379 | PERL_CONTEXT *cx; |
0d863452 RH |
4380 | I32 gimme; |
4381 | SV **newsp; | |
4382 | PMOP *newpm; | |
96a5add6 | 4383 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4384 | |
4385 | POPBLOCK(cx,newpm); | |
4386 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4387 | |
2fc507dc | 4388 | SP = leave_common(newsp, SP, newsp, gimme, |
2ec7f6f2 | 4389 | SVs_PADTMP|SVs_TEMP, FALSE); |
25b991bf | 4390 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
0d863452 | 4391 | |
d343c3ef | 4392 | LEAVE_with_name("given"); |
25b991bf | 4393 | RETURN; |
0d863452 RH |
4394 | } |
4395 | ||
4396 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4397 | STATIC PMOP * |
84679df5 | 4398 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 RH |
4399 | { |
4400 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); | |
7918f24d NC |
4401 | |
4402 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4403 | ||
d6106309 | 4404 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4405 | |
0d863452 | 4406 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4407 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4408 | SAVEOP(); |
4409 | return matcher; | |
4410 | } | |
4411 | ||
4136a0f7 | 4412 | STATIC bool |
0d863452 RH |
4413 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4414 | { | |
4415 | dSP; | |
72e5fb63 | 4416 | bool result; |
7918f24d NC |
4417 | |
4418 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4419 | |
4420 | PL_op = (OP *) matcher; | |
4421 | XPUSHs(sv); | |
4422 | PUTBACK; | |
897d3989 | 4423 | (void) Perl_pp_match(aTHX); |
0d863452 | 4424 | SPAGAIN; |
72e5fb63 TC |
4425 | result = SvTRUEx(POPs); |
4426 | PUTBACK; | |
4427 | ||
4428 | return result; | |
0d863452 RH |
4429 | } |
4430 | ||
4136a0f7 | 4431 | STATIC void |
0d863452 RH |
4432 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4433 | { | |
7918f24d | 4434 | PERL_ARGS_ASSERT_DESTROY_MATCHER; |
0d863452 | 4435 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4436 | |
0d863452 | 4437 | FREETMPS; |
d343c3ef | 4438 | LEAVE_with_name("matcher"); |
0d863452 RH |
4439 | } |
4440 | ||
4441 | /* Do a smart match */ | |
4442 | PP(pp_smartmatch) | |
4443 | { | |
d7c0d282 | 4444 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
be88a5c3 | 4445 | return do_smartmatch(NULL, NULL, 0); |
0d863452 RH |
4446 | } |
4447 | ||
4b021f5f RGS |
4448 | /* This version of do_smartmatch() implements the |
4449 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4450 | */ |
4136a0f7 | 4451 | STATIC OP * |
be88a5c3 | 4452 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other, const bool copied) |
0d863452 RH |
4453 | { |
4454 | dSP; | |
4455 | ||
41e726ac | 4456 | bool object_on_left = FALSE; |
0d863452 RH |
4457 | SV *e = TOPs; /* e is for 'expression' */ |
4458 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4459 | |
6f1401dc DM |
4460 | /* Take care only to invoke mg_get() once for each argument. |
4461 | * Currently we do this by copying the SV if it's magical. */ | |
4462 | if (d) { | |
be88a5c3 | 4463 | if (!copied && SvGMAGICAL(d)) |
6f1401dc DM |
4464 | d = sv_mortalcopy(d); |
4465 | } | |
4466 | else | |
4467 | d = &PL_sv_undef; | |
4468 | ||
4469 | assert(e); | |
4470 | if (SvGMAGICAL(e)) | |
4471 | e = sv_mortalcopy(e); | |
4472 | ||
2c9d2554 | 4473 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4474 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4475 | SV * tmpsv; |
4476 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4477 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4478 | ||
b900a653 | 4479 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noleft); |
7c41e62e RGS |
4480 | if (tmpsv) { |
4481 | SPAGAIN; | |
4482 | (void)POPs; | |
4483 | SETs(tmpsv); | |
4484 | RETURN; | |
4485 | } | |
d7c0d282 | 4486 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4487 | } |
62ec5f58 | 4488 | |
0d863452 | 4489 | SP -= 2; /* Pop the values */ |
e8fe1b7c | 4490 | PUTBACK; |
0d863452 | 4491 | |
b0138e99 | 4492 | /* ~~ undef */ |
62ec5f58 | 4493 | if (!SvOK(e)) { |
d7c0d282 | 4494 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4495 | if (SvOK(d)) |
33570f8b RGS |
4496 | RETPUSHNO; |
4497 | else | |
62ec5f58 | 4498 | RETPUSHYES; |
33570f8b | 4499 | } |
e67b97bd | 4500 | |
4b523e79 | 4501 | if (SvROK(e) && SvOBJECT(SvRV(e)) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
d7c0d282 | 4502 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); |
62ec5f58 | 4503 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4504 | } |
4b523e79 | 4505 | if (SvROK(d) && SvOBJECT(SvRV(d)) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
41e726ac | 4506 | object_on_left = TRUE; |
62ec5f58 | 4507 | |
b0138e99 | 4508 | /* ~~ sub */ |
a4a197da | 4509 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4510 | I32 c; |
41e726ac RGS |
4511 | if (object_on_left) { |
4512 | goto sm_any_sub; /* Treat objects like scalars */ | |
4513 | } | |
4514 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4515 | /* Test sub truth for each key */ |
4516 | HE *he; | |
4517 | bool andedresults = TRUE; | |
4518 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4519 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4520 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4521 | if (numkeys == 0) |
07edf497 | 4522 | RETPUSHYES; |
a4a197da | 4523 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4524 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4525 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4526 | SAVETMPS; |
4527 | PUSHMARK(SP); | |
4528 | PUSHs(hv_iterkeysv(he)); | |
4529 | PUTBACK; | |
4530 | c = call_sv(e, G_SCALAR); | |
4531 | SPAGAIN; | |
4532 | if (c == 0) | |
4533 | andedresults = FALSE; | |
4534 | else | |
4535 | andedresults = SvTRUEx(POPs) && andedresults; | |
4536 | FREETMPS; | |
d343c3ef | 4537 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4538 | } |
4539 | if (andedresults) | |
4540 | RETPUSHYES; | |
4541 | else | |
4542 | RETPUSHNO; | |
4543 | } | |
4544 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4545 | /* Test sub truth for each element */ | |
c70927a6 | 4546 | SSize_t i; |
a4a197da RGS |
4547 | bool andedresults = TRUE; |
4548 | AV *av = (AV*) SvRV(d); | |
b9f2b683 | 4549 | const I32 len = av_tindex(av); |
d7c0d282 | 4550 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4551 | if (len == -1) |
07edf497 | 4552 | RETPUSHYES; |
a4a197da RGS |
4553 | for (i = 0; i <= len; ++i) { |
4554 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4555 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4556 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4557 | SAVETMPS; |
4558 | PUSHMARK(SP); | |
4559 | if (svp) | |
4560 | PUSHs(*svp); | |
4561 | PUTBACK; | |
4562 | c = call_sv(e, G_SCALAR); | |
4563 | SPAGAIN; | |
4564 | if (c == 0) | |
4565 | andedresults = FALSE; | |
4566 | else | |
4567 | andedresults = SvTRUEx(POPs) && andedresults; | |
4568 | FREETMPS; | |
d343c3ef | 4569 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4570 | } |
4571 | if (andedresults) | |
4572 | RETPUSHYES; | |
4573 | else | |
4574 | RETPUSHNO; | |
4575 | } | |
4576 | else { | |
41e726ac | 4577 | sm_any_sub: |
d7c0d282 | 4578 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4579 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4580 | SAVETMPS; |
4581 | PUSHMARK(SP); | |
4582 | PUSHs(d); | |
4583 | PUTBACK; | |
4584 | c = call_sv(e, G_SCALAR); | |
4585 | SPAGAIN; | |
4586 | if (c == 0) | |
4587 | PUSHs(&PL_sv_no); | |
4588 | else if (SvTEMP(TOPs)) | |
4589 | SvREFCNT_inc_void(TOPs); | |
4590 | FREETMPS; | |
d343c3ef | 4591 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4592 | RETURN; |
4593 | } | |
0d863452 | 4594 | } |
b0138e99 | 4595 | /* ~~ %hash */ |
61a621c6 | 4596 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4597 | if (object_on_left) { |
4598 | goto sm_any_hash; /* Treat objects like scalars */ | |
4599 | } | |
4600 | else if (!SvOK(d)) { | |
d7c0d282 | 4601 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4602 | RETPUSHNO; |
4603 | } | |
4604 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4605 | /* Check that the key-sets are identical */ |
4606 | HE *he; | |
61a621c6 | 4607 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
6bb3f245 DD |
4608 | bool tied; |
4609 | bool other_tied; | |
0d863452 RH |
4610 | U32 this_key_count = 0, |
4611 | other_key_count = 0; | |
33ed63a2 | 4612 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4613 | |
4614 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4615 | /* Tied hashes don't know how many keys they have. */ |
6bb3f245 DD |
4616 | tied = cBOOL(SvTIED_mg((SV*)hv, PERL_MAGIC_tied)); |
4617 | other_tied = cBOOL(SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)); | |
4618 | if (!tied ) { | |
4619 | if(other_tied) { | |
4620 | /* swap HV sides */ | |
4621 | HV * const temp = other_hv; | |
4622 | other_hv = hv; | |
4623 | hv = temp; | |
4624 | tied = TRUE; | |
4625 | other_tied = FALSE; | |
4626 | } | |
4627 | else if(HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) | |
4628 | RETPUSHNO; | |
0d863452 | 4629 | } |
0d863452 RH |
4630 | |
4631 | /* The hashes have the same number of keys, so it suffices | |
4632 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4633 | (void) hv_iterinit(hv); |
4634 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4635 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4636 | |
4637 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4638 | ++ this_key_count; |
4639 | ||
b15feb55 | 4640 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4641 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4642 | RETPUSHNO; |
4643 | } | |
4644 | } | |
4645 | ||
4646 | if (other_tied) { | |
4647 | (void) hv_iterinit(other_hv); | |
4648 | while ( hv_iternext(other_hv) ) | |
4649 | ++other_key_count; | |
4650 | } | |
4651 | else | |
4652 | other_key_count = HvUSEDKEYS(other_hv); | |
4653 | ||
4654 | if (this_key_count != other_key_count) | |
4655 | RETPUSHNO; | |
4656 | else | |
4657 | RETPUSHYES; | |
4658 | } | |
61a621c6 RGS |
4659 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4660 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
b9f2b683 | 4661 | const SSize_t other_len = av_tindex(other_av) + 1; |
c70927a6 | 4662 | SSize_t i; |
33ed63a2 | 4663 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4664 | |
d7c0d282 | 4665 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4666 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4667 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4668 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4669 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4670 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4671 | RETPUSHYES; |
4672 | } | |
0d863452 | 4673 | } |
71b0fb34 | 4674 | RETPUSHNO; |
0d863452 | 4675 | } |
a566f585 | 4676 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4677 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4678 | sm_regex_hash: |
4679 | { | |
4680 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4681 | HE *he; | |
4682 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4683 | ||
4684 | (void) hv_iterinit(hv); | |
4685 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4686 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
e8fe1b7c | 4687 | PUTBACK; |
ea0c2dbd | 4688 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
e8fe1b7c | 4689 | SPAGAIN; |
ea0c2dbd RGS |
4690 | (void) hv_iterinit(hv); |
4691 | destroy_matcher(matcher); | |
4692 | RETPUSHYES; | |
4693 | } | |
e8fe1b7c | 4694 | SPAGAIN; |
0d863452 | 4695 | } |
ea0c2dbd RGS |
4696 | destroy_matcher(matcher); |
4697 | RETPUSHNO; | |
0d863452 | 4698 | } |
0d863452 RH |
4699 | } |
4700 | else { | |
41e726ac | 4701 | sm_any_hash: |
d7c0d282 | 4702 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4703 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4704 | RETPUSHYES; |
4705 | else | |
4706 | RETPUSHNO; | |
4707 | } | |
4708 | } | |
b0138e99 RGS |
4709 | /* ~~ @array */ |
4710 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4711 | if (object_on_left) { |
4712 | goto sm_any_array; /* Treat objects like scalars */ | |
4713 | } | |
4714 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 | 4715 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
b9f2b683 | 4716 | const SSize_t other_len = av_tindex(other_av) + 1; |
c70927a6 | 4717 | SSize_t i; |
b0138e99 | 4718 | |
d7c0d282 | 4719 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4720 | for (i = 0; i < other_len; ++i) { |
4721 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4722 | |
4723 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4724 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4725 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4726 | RETPUSHYES; |
4727 | } | |
4728 | } | |
4729 | RETPUSHNO; | |
4730 | } | |
4731 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4732 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4733 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b9f2b683 | 4734 | if (av_tindex(MUTABLE_AV(SvRV(e))) != av_tindex(other_av)) |
0d863452 RH |
4735 | RETPUSHNO; |
4736 | else { | |
c70927a6 | 4737 | SSize_t i; |
b9f2b683 | 4738 | const SSize_t other_len = av_tindex(other_av); |
0d863452 | 4739 | |
a0714e2c | 4740 | if (NULL == seen_this) { |
0d863452 | 4741 | seen_this = newHV(); |
ad64d0ec | 4742 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4743 | } |
a0714e2c | 4744 | if (NULL == seen_other) { |
6bc991bf | 4745 | seen_other = newHV(); |
ad64d0ec | 4746 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4747 | } |
4748 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4749 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4750 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4751 | ||
0d863452 | 4752 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4753 | if ((this_elem && SvOK(*this_elem)) |
4754 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4755 | RETPUSHNO; |
4756 | } | |
365c4e3d RGS |
4757 | else if (hv_exists_ent(seen_this, |
4758 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4759 | hv_exists_ent(seen_other, | |
4760 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4761 | { |
4762 | if (*this_elem != *other_elem) | |
4763 | RETPUSHNO; | |
4764 | } | |
4765 | else { | |
04fe65b0 RGS |
4766 | (void)hv_store_ent(seen_this, |
4767 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4768 | &PL_sv_undef, 0); | |
4769 | (void)hv_store_ent(seen_other, | |
4770 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4771 | &PL_sv_undef, 0); | |
0d863452 | 4772 | PUSHs(*other_elem); |
a566f585 | 4773 | PUSHs(*this_elem); |
0d863452 RH |
4774 | |
4775 | PUTBACK; | |
d7c0d282 | 4776 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
be88a5c3 | 4777 | (void) do_smartmatch(seen_this, seen_other, 0); |
0d863452 | 4778 | SPAGAIN; |
d7c0d282 | 4779 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4780 | |
4781 | if (!SvTRUEx(POPs)) | |
4782 | RETPUSHNO; | |
4783 | } | |
4784 | } | |
4785 | RETPUSHYES; | |
4786 | } | |
4787 | } | |
a566f585 | 4788 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4789 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4790 | sm_regex_array: |
4791 | { | |
4792 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
b9f2b683 | 4793 | const SSize_t this_len = av_tindex(MUTABLE_AV(SvRV(e))); |
c70927a6 | 4794 | SSize_t i; |
0d863452 | 4795 | |
ea0c2dbd RGS |
4796 | for(i = 0; i <= this_len; ++i) { |
4797 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4798 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
e8fe1b7c | 4799 | PUTBACK; |
ea0c2dbd | 4800 | if (svp && matcher_matches_sv(matcher, *svp)) { |
e8fe1b7c | 4801 | SPAGAIN; |
ea0c2dbd RGS |
4802 | destroy_matcher(matcher); |
4803 | RETPUSHYES; | |
4804 | } | |
e8fe1b7c | 4805 | SPAGAIN; |
0d863452 | 4806 | } |
ea0c2dbd RGS |
4807 | destroy_matcher(matcher); |
4808 | RETPUSHNO; | |
0d863452 | 4809 | } |
0d863452 | 4810 | } |
015eb7b9 RGS |
4811 | else if (!SvOK(d)) { |
4812 | /* undef ~~ array */ | |
b9f2b683 | 4813 | const SSize_t this_len = av_tindex(MUTABLE_AV(SvRV(e))); |
c70927a6 | 4814 | SSize_t i; |
0d863452 | 4815 | |
d7c0d282 | 4816 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4817 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4818 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4819 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4820 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4821 | RETPUSHYES; |
4822 | } | |
4823 | RETPUSHNO; | |
4824 | } | |
015eb7b9 | 4825 | else { |
41e726ac RGS |
4826 | sm_any_array: |
4827 | { | |
c70927a6 | 4828 | SSize_t i; |
b9f2b683 | 4829 | const SSize_t this_len = av_tindex(MUTABLE_AV(SvRV(e))); |
0d863452 | 4830 | |
d7c0d282 | 4831 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4832 | for (i = 0; i <= this_len; ++i) { |
4833 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4834 | if (!svp) | |
4835 | continue; | |
015eb7b9 | 4836 | |
41e726ac RGS |
4837 | PUSHs(d); |
4838 | PUSHs(*svp); | |
4839 | PUTBACK; | |
4840 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4841 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
be88a5c3 | 4842 | (void) do_smartmatch(NULL, NULL, 1); |
41e726ac | 4843 | SPAGAIN; |
d7c0d282 | 4844 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4845 | if (SvTRUEx(POPs)) |
4846 | RETPUSHYES; | |
4847 | } | |
4848 | RETPUSHNO; | |
0d863452 | 4849 | } |
0d863452 RH |
4850 | } |
4851 | } | |
b0138e99 | 4852 | /* ~~ qr// */ |
a566f585 | 4853 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4854 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4855 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4856 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4857 | goto sm_regex_hash; |
4858 | } | |
4859 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4860 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4861 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4862 | goto sm_regex_array; |
4863 | } | |
4864 | else { | |
4865 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
e8fe1b7c | 4866 | bool result; |
0d863452 | 4867 | |
d7c0d282 | 4868 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd | 4869 | PUTBACK; |
e8fe1b7c DM |
4870 | result = matcher_matches_sv(matcher, d); |
4871 | SPAGAIN; | |
4872 | PUSHs(result ? &PL_sv_yes : &PL_sv_no); | |
ea0c2dbd RGS |
4873 | destroy_matcher(matcher); |
4874 | RETURN; | |
4875 | } | |
0d863452 | 4876 | } |
b0138e99 | 4877 | /* ~~ scalar */ |
2c9d2554 RGS |
4878 | /* See if there is overload magic on left */ |
4879 | else if (object_on_left && SvAMAGIC(d)) { | |
4880 | SV *tmpsv; | |
d7c0d282 DM |
4881 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4882 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4883 | PUSHs(d); PUSHs(e); |
4884 | PUTBACK; | |
4885 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4886 | if (tmpsv) { | |
4887 | SPAGAIN; | |
4888 | (void)POPs; | |
4889 | SETs(tmpsv); | |
4890 | RETURN; | |
4891 | } | |
4892 | SP -= 2; | |
d7c0d282 | 4893 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4894 | goto sm_any_scalar; |
4895 | } | |
fb51372e RGS |
4896 | else if (!SvOK(d)) { |
4897 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4898 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4899 | RETPUSHNO; |
4900 | } | |
2c9d2554 RGS |
4901 | else |
4902 | sm_any_scalar: | |
4903 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4904 | DEBUG_M(if (SvNIOK(e)) |
4905 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4906 | else | |
4907 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4908 | ); | |
33ed63a2 | 4909 | /* numeric comparison */ |
0d863452 RH |
4910 | PUSHs(d); PUSHs(e); |
4911 | PUTBACK; | |
a98fe34d | 4912 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
897d3989 | 4913 | (void) Perl_pp_i_eq(aTHX); |
0d863452 | 4914 | else |
897d3989 | 4915 | (void) Perl_pp_eq(aTHX); |
0d863452 RH |
4916 | SPAGAIN; |
4917 | if (SvTRUEx(POPs)) | |
4918 | RETPUSHYES; | |
4919 | else | |
4920 | RETPUSHNO; | |
4921 | } | |
4922 | ||
4923 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4924 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4925 | PUSHs(d); PUSHs(e); |
4926 | PUTBACK; | |
897d3989 | 4927 | return Perl_pp_seq(aTHX); |
0d863452 RH |
4928 | } |
4929 | ||
4930 | PP(pp_enterwhen) | |
4931 | { | |
20b7effb | 4932 | dSP; |
eb578fdb | 4933 | PERL_CONTEXT *cx; |
0d863452 RH |
4934 | const I32 gimme = GIMME_V; |
4935 | ||
4936 | /* This is essentially an optimization: if the match | |
4937 | fails, we don't want to push a context and then | |
4938 | pop it again right away, so we skip straight | |
4939 | to the op that follows the leavewhen. | |
25b991bf | 4940 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4941 | */ |
4942 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4943 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4944 | |
c08f093b | 4945 | ENTER_with_name("when"); |
0d863452 RH |
4946 | SAVETMPS; |
4947 | ||
4948 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4949 | PUSHWHEN(cx); | |
4950 | ||
4951 | RETURN; | |
4952 | } | |
4953 | ||
4954 | PP(pp_leavewhen) | |
4955 | { | |
20b7effb | 4956 | dSP; |
c08f093b | 4957 | I32 cxix; |
eb578fdb | 4958 | PERL_CONTEXT *cx; |
c08f093b | 4959 | I32 gimme; |
0d863452 RH |
4960 | SV **newsp; |
4961 | PMOP *newpm; | |
4962 | ||
c08f093b VP |
4963 | cxix = dopoptogiven(cxstack_ix); |
4964 | if (cxix < 0) | |
fc7debfb FC |
4965 | /* diag_listed_as: Can't "when" outside a topicalizer */ |
4966 | DIE(aTHX_ "Can't \"%s\" outside a topicalizer", | |
4967 | PL_op->op_flags & OPf_SPECIAL ? "default" : "when"); | |
c08f093b | 4968 | |
0d863452 RH |
4969 | POPBLOCK(cx,newpm); |
4970 | assert(CxTYPE(cx) == CXt_WHEN); | |
4971 | ||
2fc507dc | 4972 | SP = leave_common(newsp, SP, newsp, gimme, |
2ec7f6f2 | 4973 | SVs_PADTMP|SVs_TEMP, FALSE); |
0d863452 RH |
4974 | PL_curpm = newpm; /* pop $1 et al */ |
4975 | ||
c08f093b VP |
4976 | LEAVE_with_name("when"); |
4977 | ||
4978 | if (cxix < cxstack_ix) | |
4979 | dounwind(cxix); | |
4980 | ||
4981 | cx = &cxstack[cxix]; | |
4982 | ||
4983 | if (CxFOREACH(cx)) { | |
4984 | /* clear off anything above the scope we're re-entering */ | |
4985 | I32 inner = PL_scopestack_ix; | |
4986 | ||
4987 | TOPBLOCK(cx); | |
4988 | if (PL_scopestack_ix < inner) | |
4989 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4990 | PL_curcop = cx->blk_oldcop; | |
4991 | ||
47c9d59f | 4992 | PERL_ASYNC_CHECK(); |
c08f093b VP |
4993 | return cx->blk_loop.my_op->op_nextop; |
4994 | } | |
47c9d59f NC |
4995 | else { |
4996 | PERL_ASYNC_CHECK(); | |
b1b5a4ae | 4997 | RETURNOP(cx->blk_givwhen.leave_op); |
47c9d59f | 4998 | } |
0d863452 RH |
4999 | } |
5000 | ||
5001 | PP(pp_continue) | |
5002 | { | |
20b7effb | 5003 | dSP; |
0d863452 | 5004 | I32 cxix; |
eb578fdb | 5005 | PERL_CONTEXT *cx; |
c08f093b VP |
5006 | I32 gimme; |
5007 | SV **newsp; | |
5008 | PMOP *newpm; | |
7be5bd17 FR |
5009 | |
5010 | PERL_UNUSED_VAR(gimme); | |
0d863452 RH |
5011 | |
5012 | cxix = dopoptowhen(cxstack_ix); | |
5013 | if (cxix < 0) | |
5014 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
c08f093b | 5015 | |
0d863452 RH |
5016 | if (cxix < cxstack_ix) |
5017 | dounwind(cxix); | |
5018 | ||
c08f093b VP |
5019 | POPBLOCK(cx,newpm); |
5020 | assert(CxTYPE(cx) == CXt_WHEN); | |
5021 | ||
5022 | SP = newsp; | |
5023 | PL_curpm = newpm; /* pop $1 et al */ | |
5024 | ||
5025 | LEAVE_with_name("when"); | |
5026 | RETURNOP(cx->blk_givwhen.leave_op->op_next); | |
0d863452 RH |
5027 | } |
5028 | ||
5029 | PP(pp_break) | |
5030 | { | |
0d863452 | 5031 | I32 cxix; |
eb578fdb | 5032 | PERL_CONTEXT *cx; |
25b991bf | 5033 | |
0d863452 | 5034 | cxix = dopoptogiven(cxstack_ix); |
c08f093b VP |
5035 | if (cxix < 0) |
5036 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
5037 | ||
5038 | cx = &cxstack[cxix]; | |
5039 | if (CxFOREACH(cx)) | |
0d863452 RH |
5040 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); |
5041 | ||
5042 | if (cxix < cxstack_ix) | |
5043 | dounwind(cxix); | |
0d863452 | 5044 | |
0787ea8a VP |
5045 | /* Restore the sp at the time we entered the given block */ |
5046 | TOPBLOCK(cx); | |
5047 | ||
c08f093b | 5048 | return cx->blk_givwhen.leave_op; |
0d863452 RH |
5049 | } |
5050 | ||
74e0ddf7 | 5051 | static MAGIC * |
cea2e8a9 | 5052 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
5053 | { |
5054 | STRLEN len; | |
eb578fdb KW |
5055 | char *s = SvPV(sv, len); |
5056 | char *send; | |
5057 | char *base = NULL; /* start of current field */ | |
5058 | I32 skipspaces = 0; /* number of contiguous spaces seen */ | |
086b26f3 DM |
5059 | bool noblank = FALSE; /* ~ or ~~ seen on this line */ |
5060 | bool repeat = FALSE; /* ~~ seen on this line */ | |
5061 | bool postspace = FALSE; /* a text field may need right padding */ | |
dea28490 | 5062 | U32 *fops; |
eb578fdb | 5063 | U32 *fpc; |
086b26f3 | 5064 | U32 *linepc = NULL; /* position of last FF_LINEMARK */ |
eb578fdb | 5065 | I32 arg; |
086b26f3 DM |
5066 | bool ischop; /* it's a ^ rather than a @ */ |
5067 | bool unchopnum = FALSE; /* at least one @ (i.e. non-chop) num field seen */ | |
a1b95068 | 5068 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ |
3808a683 DM |
5069 | MAGIC *mg = NULL; |
5070 | SV *sv_copy; | |
a0d0e21e | 5071 | |
7918f24d NC |
5072 | PERL_ARGS_ASSERT_DOPARSEFORM; |
5073 | ||
55497cff | 5074 | if (len == 0) |
cea2e8a9 | 5075 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 5076 | |
3808a683 DM |
5077 | if (SvTYPE(sv) >= SVt_PVMG) { |
5078 | /* This might, of course, still return NULL. */ | |
5079 | mg = mg_find(sv, PERL_MAGIC_fm); | |
5080 | } else { | |
5081 | sv_upgrade(sv, SVt_PVMG); | |
5082 | } | |
5083 | ||
5084 | if (mg) { | |
5085 | /* still the same as previously-compiled string? */ | |
5086 | SV *old = mg->mg_obj; | |
5087 | if ( !(!!SvUTF8(old) ^ !!SvUTF8(sv)) | |
5088 | && len == SvCUR(old) | |
5089 | && strnEQ(SvPVX(old), SvPVX(sv), len) | |
b57b1734 DM |
5090 | ) { |
5091 | DEBUG_f(PerlIO_printf(Perl_debug_log,"Re-using compiled format\n")); | |
3808a683 | 5092 | return mg; |
b57b1734 | 5093 | } |
3808a683 | 5094 | |
b57b1734 | 5095 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Re-compiling format\n")); |
3808a683 DM |
5096 | Safefree(mg->mg_ptr); |
5097 | mg->mg_ptr = NULL; | |
5098 | SvREFCNT_dec(old); | |
5099 | mg->mg_obj = NULL; | |
5100 | } | |
b57b1734 DM |
5101 | else { |
5102 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Compiling format\n")); | |
3808a683 | 5103 | mg = sv_magicext(sv, NULL, PERL_MAGIC_fm, &PL_vtbl_fm, NULL, 0); |
b57b1734 | 5104 | } |
3808a683 DM |
5105 | |
5106 | sv_copy = newSVpvn_utf8(s, len, SvUTF8(sv)); | |
5107 | s = SvPV(sv_copy, len); /* work on the copy, not the original */ | |
5108 | send = s + len; | |
5109 | ||
5110 | ||
815f25c6 DM |
5111 | /* estimate the buffer size needed */ |
5112 | for (base = s; s <= send; s++) { | |
a1b95068 | 5113 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
5114 | maxops += 10; |
5115 | } | |
5116 | s = base; | |
c445ea15 | 5117 | base = NULL; |
815f25c6 | 5118 | |
a02a5408 | 5119 | Newx(fops, maxops, U32); |
a0d0e21e LW |
5120 | fpc = fops; |
5121 | ||
5122 | if (s < send) { | |
5123 | linepc = fpc; | |
5124 | *fpc++ = FF_LINEMARK; | |
5125 | noblank = repeat = FALSE; | |
5126 | base = s; | |
5127 | } | |
5128 | ||
5129 | while (s <= send) { | |
5130 | switch (*s++) { | |
5131 | default: | |
5132 | skipspaces = 0; | |
5133 | continue; | |
5134 | ||
5135 | case '~': | |
5136 | if (*s == '~') { | |
5137 | repeat = TRUE; | |
b57b1734 DM |
5138 | skipspaces++; |
5139 | s++; | |
a0d0e21e LW |
5140 | } |
5141 | noblank = TRUE; | |
924ba076 | 5142 | /* FALLTHROUGH */ |
a0d0e21e LW |
5143 | case ' ': case '\t': |
5144 | skipspaces++; | |
5145 | continue; | |
a1b95068 WL |
5146 | case 0: |
5147 | if (s < send) { | |
5148 | skipspaces = 0; | |
5149 | continue; | |
5150 | } /* else FALL THROUGH */ | |
5151 | case '\n': | |
a0d0e21e LW |
5152 | arg = s - base; |
5153 | skipspaces++; | |
5154 | arg -= skipspaces; | |
5155 | if (arg) { | |
5f05dabc | 5156 | if (postspace) |
a0d0e21e | 5157 | *fpc++ = FF_SPACE; |
a0d0e21e | 5158 | *fpc++ = FF_LITERAL; |
76912796 | 5159 | *fpc++ = (U32)arg; |
a0d0e21e | 5160 | } |
5f05dabc | 5161 | postspace = FALSE; |
a0d0e21e LW |
5162 | if (s <= send) |
5163 | skipspaces--; | |
5164 | if (skipspaces) { | |
5165 | *fpc++ = FF_SKIP; | |
76912796 | 5166 | *fpc++ = (U32)skipspaces; |
a0d0e21e LW |
5167 | } |
5168 | skipspaces = 0; | |
5169 | if (s <= send) | |
5170 | *fpc++ = FF_NEWLINE; | |
5171 | if (noblank) { | |
5172 | *fpc++ = FF_BLANK; | |
5173 | if (repeat) | |
5174 | arg = fpc - linepc + 1; | |
5175 | else | |
5176 | arg = 0; | |
76912796 | 5177 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5178 | } |
5179 | if (s < send) { | |
5180 | linepc = fpc; | |
5181 | *fpc++ = FF_LINEMARK; | |
5182 | noblank = repeat = FALSE; | |
5183 | base = s; | |
5184 | } | |
5185 | else | |
5186 | s++; | |
5187 | continue; | |
5188 | ||
5189 | case '@': | |
5190 | case '^': | |
5191 | ischop = s[-1] == '^'; | |
5192 | ||
5193 | if (postspace) { | |
5194 | *fpc++ = FF_SPACE; | |
5195 | postspace = FALSE; | |
5196 | } | |
5197 | arg = (s - base) - 1; | |
5198 | if (arg) { | |
5199 | *fpc++ = FF_LITERAL; | |
76912796 | 5200 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5201 | } |
5202 | ||
5203 | base = s - 1; | |
5204 | *fpc++ = FF_FETCH; | |
086b26f3 | 5205 | if (*s == '*') { /* @* or ^* */ |
a0d0e21e | 5206 | s++; |
a1b95068 WL |
5207 | *fpc++ = 2; /* skip the @* or ^* */ |
5208 | if (ischop) { | |
5209 | *fpc++ = FF_LINESNGL; | |
5210 | *fpc++ = FF_CHOP; | |
5211 | } else | |
5212 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e | 5213 | } |
086b26f3 | 5214 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { /* @###, ^### */ |
a701009a | 5215 | arg = ischop ? FORM_NUM_BLANK : 0; |
a0d0e21e LW |
5216 | base = s - 1; |
5217 | while (*s == '#') | |
5218 | s++; | |
5219 | if (*s == '.') { | |
06b5626a | 5220 | const char * const f = ++s; |
a0d0e21e LW |
5221 | while (*s == '#') |
5222 | s++; | |
a701009a | 5223 | arg |= FORM_NUM_POINT + (s - f); |
a0d0e21e LW |
5224 | } |
5225 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5226 | *fpc++ = FF_DECIMAL; | |
76912796 | 5227 | *fpc++ = (U32)arg; |
a1b95068 | 5228 | unchopnum |= ! ischop; |
784707d5 JP |
5229 | } |
5230 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
a701009a | 5231 | arg = ischop ? FORM_NUM_BLANK : 0; |
784707d5 JP |
5232 | base = s - 1; |
5233 | s++; /* skip the '0' first */ | |
5234 | while (*s == '#') | |
5235 | s++; | |
5236 | if (*s == '.') { | |
06b5626a | 5237 | const char * const f = ++s; |
784707d5 JP |
5238 | while (*s == '#') |
5239 | s++; | |
a701009a | 5240 | arg |= FORM_NUM_POINT + (s - f); |
784707d5 JP |
5241 | } |
5242 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5243 | *fpc++ = FF_0DECIMAL; | |
76912796 | 5244 | *fpc++ = (U32)arg; |
a1b95068 | 5245 | unchopnum |= ! ischop; |
a0d0e21e | 5246 | } |
086b26f3 | 5247 | else { /* text field */ |
a0d0e21e LW |
5248 | I32 prespace = 0; |
5249 | bool ismore = FALSE; | |
5250 | ||
5251 | if (*s == '>') { | |
5252 | while (*++s == '>') ; | |
5253 | prespace = FF_SPACE; | |
5254 | } | |
5255 | else if (*s == '|') { | |
5256 | while (*++s == '|') ; | |
5257 | prespace = FF_HALFSPACE; | |
5258 | postspace = TRUE; | |
5259 | } | |
5260 | else { | |
5261 | if (*s == '<') | |
5262 | while (*++s == '<') ; | |
5263 | postspace = TRUE; | |
5264 | } | |
5265 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
5266 | s += 3; | |
5267 | ismore = TRUE; | |
5268 | } | |
5269 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5270 | ||
5271 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
5272 | ||
5273 | if (prespace) | |
76912796 | 5274 | *fpc++ = (U32)prespace; /* add SPACE or HALFSPACE */ |
a0d0e21e LW |
5275 | *fpc++ = FF_ITEM; |
5276 | if (ismore) | |
5277 | *fpc++ = FF_MORE; | |
5278 | if (ischop) | |
5279 | *fpc++ = FF_CHOP; | |
5280 | } | |
5281 | base = s; | |
5282 | skipspaces = 0; | |
5283 | continue; | |
5284 | } | |
5285 | } | |
5286 | *fpc++ = FF_END; | |
5287 | ||
815f25c6 | 5288 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e | 5289 | arg = fpc - fops; |
74e0ddf7 | 5290 | |
3808a683 | 5291 | mg->mg_ptr = (char *) fops; |
74e0ddf7 | 5292 | mg->mg_len = arg * sizeof(U32); |
3808a683 DM |
5293 | mg->mg_obj = sv_copy; |
5294 | mg->mg_flags |= MGf_REFCOUNTED; | |
a1b95068 | 5295 | |
bfed75c6 | 5296 | if (unchopnum && repeat) |
75f63940 | 5297 | Perl_die(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
74e0ddf7 NC |
5298 | |
5299 | return mg; | |
a1b95068 WL |
5300 | } |
5301 | ||
5302 | ||
5303 | STATIC bool | |
5304 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
5305 | { | |
5306 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
5307 | NV pwr = 1; | |
5308 | NV eps = 0.5; | |
5309 | bool res = FALSE; | |
5310 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
5311 | ||
a701009a | 5312 | if (frcsize & FORM_NUM_POINT) |
a1b95068 | 5313 | intsize--; |
a701009a | 5314 | frcsize &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
a1b95068 WL |
5315 | intsize -= frcsize; |
5316 | ||
5317 | while (intsize--) pwr *= 10.0; | |
5318 | while (frcsize--) eps /= 10.0; | |
5319 | ||
5320 | if( value >= 0 ){ | |
5321 | if (value + eps >= pwr) | |
5322 | res = TRUE; | |
5323 | } else { | |
5324 | if (value - eps <= -pwr) | |
5325 | res = TRUE; | |
5326 | } | |
5327 | return res; | |
a0d0e21e | 5328 | } |
4e35701f | 5329 | |
bbed91b5 | 5330 | static I32 |
0bd48802 | 5331 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 5332 | { |
0bd48802 | 5333 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 5334 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
5335 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
5336 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5337 | int status = 0; |
ec0b63d7 | 5338 | SV *upstream; |
941a98a0 | 5339 | STRLEN got_len; |
162177c1 Z |
5340 | char *got_p = NULL; |
5341 | char *prune_from = NULL; | |
34113e50 | 5342 | bool read_from_cache = FALSE; |
bb7a0f54 | 5343 | STRLEN umaxlen; |
d60d2019 | 5344 | SV *err = NULL; |
bb7a0f54 | 5345 | |
7918f24d NC |
5346 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5347 | ||
bb7a0f54 MHM |
5348 | assert(maxlen >= 0); |
5349 | umaxlen = maxlen; | |
5675696b | 5350 | |
bbed91b5 | 5351 | /* I was having segfault trouble under Linux 2.2.5 after a |
f6bab5f6 | 5352 | parse error occurred. (Had to hack around it with a test |
13765c85 | 5353 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5354 | not sure where the trouble is yet. XXX */ |
5355 | ||
4464f08e NC |
5356 | { |
5357 | SV *const cache = datasv; | |
937b367d NC |
5358 | if (SvOK(cache)) { |
5359 | STRLEN cache_len; | |
5360 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5361 | STRLEN take = 0; |
5362 | ||
bb7a0f54 | 5363 | if (umaxlen) { |
941a98a0 NC |
5364 | /* Running in block mode and we have some cached data already. |
5365 | */ | |
bb7a0f54 | 5366 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5367 | /* In fact, so much data we don't even need to call |
5368 | filter_read. */ | |
bb7a0f54 | 5369 | take = umaxlen; |
941a98a0 NC |
5370 | } |
5371 | } else { | |
10edeb5d JH |
5372 | const char *const first_nl = |
5373 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5374 | if (first_nl) { |
5375 | take = first_nl + 1 - cache_p; | |
5376 | } | |
5377 | } | |
5378 | if (take) { | |
5379 | sv_catpvn(buf_sv, cache_p, take); | |
5380 | sv_chop(cache, cache_p + take); | |
486ec47a | 5381 | /* Definitely not EOF */ |
937b367d NC |
5382 | return 1; |
5383 | } | |
941a98a0 | 5384 | |
937b367d | 5385 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5386 | if (umaxlen) { |
5387 | umaxlen -= cache_len; | |
941a98a0 | 5388 | } |
937b367d | 5389 | SvOK_off(cache); |
34113e50 | 5390 | read_from_cache = TRUE; |
937b367d NC |
5391 | } |
5392 | } | |
ec0b63d7 | 5393 | |
34113e50 NC |
5394 | /* Filter API says that the filter appends to the contents of the buffer. |
5395 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5396 | then clearly what it contains is already filtered by this filter, so we | |
5397 | don't want to pass it in a second time. | |
5398 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5399 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5400 | ? sv_newmortal() : buf_sv; | |
5401 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5402 | |
bbed91b5 | 5403 | if (filter_has_file) { |
67e70b33 | 5404 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5405 | } |
5406 | ||
34113e50 | 5407 | if (filter_sub && status >= 0) { |
39644a26 | 5408 | dSP; |
bbed91b5 KF |
5409 | int count; |
5410 | ||
d343c3ef | 5411 | ENTER_with_name("call_filter_sub"); |
55b5114f | 5412 | SAVE_DEFSV; |
bbed91b5 KF |
5413 | SAVETMPS; |
5414 | EXTEND(SP, 2); | |
5415 | ||
414bf5ae | 5416 | DEFSV_set(upstream); |
bbed91b5 | 5417 | PUSHMARK(SP); |
6e449a3a | 5418 | mPUSHi(0); |
bbed91b5 KF |
5419 | if (filter_state) { |
5420 | PUSHs(filter_state); | |
5421 | } | |
5422 | PUTBACK; | |
d60d2019 | 5423 | count = call_sv(filter_sub, G_SCALAR|G_EVAL); |
bbed91b5 KF |
5424 | SPAGAIN; |
5425 | ||
5426 | if (count > 0) { | |
5427 | SV *out = POPs; | |
2e8409ad | 5428 | SvGETMAGIC(out); |
bbed91b5 | 5429 | if (SvOK(out)) { |
941a98a0 | 5430 | status = SvIV(out); |
bbed91b5 | 5431 | } |
eed484f9 DD |
5432 | else { |
5433 | SV * const errsv = ERRSV; | |
5434 | if (SvTRUE_NN(errsv)) | |
5435 | err = newSVsv(errsv); | |
d60d2019 | 5436 | } |
bbed91b5 KF |
5437 | } |
5438 | ||
5439 | PUTBACK; | |
5440 | FREETMPS; | |
d343c3ef | 5441 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5442 | } |
5443 | ||
536ac391 FC |
5444 | if (SvGMAGICAL(upstream)) { |
5445 | mg_get(upstream); | |
5446 | if (upstream == buf_sv) mg_free(buf_sv); | |
5447 | } | |
b68108d9 | 5448 | if (SvIsCOW(upstream)) sv_force_normal(upstream); |
d60d2019 | 5449 | if(!err && SvOK(upstream)) { |
536ac391 | 5450 | got_p = SvPV_nomg(upstream, got_len); |
bb7a0f54 MHM |
5451 | if (umaxlen) { |
5452 | if (got_len > umaxlen) { | |
5453 | prune_from = got_p + umaxlen; | |
937b367d | 5454 | } |
941a98a0 | 5455 | } else { |
162177c1 | 5456 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5457 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5458 | /* There's a second line here... */ | |
5459 | prune_from = first_nl + 1; | |
937b367d | 5460 | } |
937b367d NC |
5461 | } |
5462 | } | |
d60d2019 | 5463 | if (!err && prune_from) { |
941a98a0 NC |
5464 | /* Oh. Too long. Stuff some in our cache. */ |
5465 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5466 | SV *const cache = datasv; |
941a98a0 | 5467 | |
4464f08e | 5468 | if (SvOK(cache)) { |
941a98a0 NC |
5469 | /* Cache should be empty. */ |
5470 | assert(!SvCUR(cache)); | |
5471 | } | |
5472 | ||
5473 | sv_setpvn(cache, prune_from, cached_len); | |
5474 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5475 | "If it breaks, you get to keep both parts" | |
5476 | (Your code is broken if you don't put them back together again | |
5477 | before something notices.) */ | |
5478 | if (SvUTF8(upstream)) { | |
5479 | SvUTF8_on(cache); | |
5480 | } | |
00752fe1 FC |
5481 | if (SvPOK(upstream)) SvCUR_set(upstream, got_len - cached_len); |
5482 | else | |
5483 | /* Cannot just use sv_setpvn, as that could free the buffer | |
5484 | before we have a chance to assign it. */ | |
5485 | sv_usepvn(upstream, savepvn(got_p, got_len - cached_len), | |
5486 | got_len - cached_len); | |
162177c1 | 5487 | *prune_from = 0; |
941a98a0 NC |
5488 | /* Can't yet be EOF */ |
5489 | if (status == 0) | |
5490 | status = 1; | |
5491 | } | |
937b367d | 5492 | |
34113e50 NC |
5493 | /* If they are at EOF but buf_sv has something in it, then they may never |
5494 | have touched the SV upstream, so it may be undefined. If we naively | |
5495 | concatenate it then we get a warning about use of uninitialised value. | |
5496 | */ | |
d60d2019 | 5497 | if (!err && upstream != buf_sv && |
dc423e96 | 5498 | SvOK(upstream)) { |
536ac391 | 5499 | sv_catsv_nomg(buf_sv, upstream); |
937b367d | 5500 | } |
ae2c96ed | 5501 | else if (SvOK(upstream)) (void)SvPV_force_nolen(buf_sv); |
937b367d | 5502 | |
941a98a0 | 5503 | if (status <= 0) { |
bbed91b5 | 5504 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5505 | if (filter_state) { |
5506 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5507 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5508 | } |
5509 | if (filter_sub) { | |
5510 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5511 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5512 | } |
0bd48802 | 5513 | filter_del(S_run_user_filter); |
bbed91b5 | 5514 | } |
d60d2019 JL |
5515 | |
5516 | if (err) | |
5517 | croak_sv(err); | |
5518 | ||
34113e50 NC |
5519 | if (status == 0 && read_from_cache) { |
5520 | /* If we read some data from the cache (and by getting here it implies | |
5521 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5522 | report that to our caller. */ | |
5523 | return 1; | |
5524 | } | |
941a98a0 | 5525 | return status; |
bbed91b5 | 5526 | } |
84d4ea48 | 5527 | |
241d1a3b | 5528 | /* |
14d04a33 | 5529 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 5530 | */ |