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]; | |
145 | else if (pm->op_private & OPpTARGET_MY) | |
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++) { |
a3b680e6 | 213 | const I32 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); |
a25b5927 | 291 | assert(0); /* 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; |
96c2a8ff FC |
315 | if (!(mg = mg_find_mglob(sv))) { |
316 | mg = sv_magicext_mglob(sv); | |
084916e3 | 317 | } |
cda67c99 DM |
318 | assert(SvPOK(sv)); |
319 | MgBYTEPOS_set(mg, sv, SvPVX(sv), m - orig); | |
084916e3 | 320 | } |
988e6e7e | 321 | if (old != rx) |
d6106309 | 322 | (void)ReREFCNT_inc(rx); |
20be6587 | 323 | /* update the taint state of various various variables in preparation |
ef07e810 DM |
324 | * for calling the code block. |
325 | * See "how taint works" above pp_subst() */ | |
284167a5 | 326 | if (TAINTING_get) { |
20be6587 DM |
327 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ |
328 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
329 | ||
330 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || | |
331 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
332 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
333 | ) | |
334 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
335 | ||
336 | if (cx->sb_iters > 1 && (cx->sb_rxtainted & | |
337 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL))) | |
8ca8a454 NC |
338 | SvTAINTED_on((pm->op_pmflags & PMf_NONDESTRUCT) |
339 | ? cx->sb_dstr : cx->sb_targ); | |
20be6587 DM |
340 | TAINT_NOT; |
341 | } | |
d9f97599 | 342 | rxres_save(&cx->sb_rxres, rx); |
af9838cc | 343 | PL_curpm = pm; |
29f2e912 | 344 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
345 | } |
346 | ||
c90c0ff4 | 347 | void |
864dbfa3 | 348 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 349 | { |
350 | UV *p = (UV*)*rsp; | |
351 | U32 i; | |
7918f24d NC |
352 | |
353 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 354 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 355 | |
07bc277f | 356 | if (!p || p[1] < RX_NPARENS(rx)) { |
db2c6cb3 | 357 | #ifdef PERL_ANY_COW |
6502e081 | 358 | i = 7 + (RX_NPARENS(rx)+1) * 2; |
ed252734 | 359 | #else |
6502e081 | 360 | i = 6 + (RX_NPARENS(rx)+1) * 2; |
ed252734 | 361 | #endif |
c90c0ff4 | 362 | if (!p) |
a02a5408 | 363 | Newx(p, i, UV); |
c90c0ff4 | 364 | else |
365 | Renew(p, i, UV); | |
366 | *rsp = (void*)p; | |
367 | } | |
368 | ||
5eabab15 DM |
369 | /* what (if anything) to free on croak */ |
370 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); | |
cf93c79d | 371 | RX_MATCH_COPIED_off(rx); |
6c31ff74 | 372 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 373 | |
db2c6cb3 | 374 | #ifdef PERL_ANY_COW |
bdd9a1b1 NC |
375 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
376 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
377 | #endif |
378 | ||
07bc277f NC |
379 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
380 | *p++ = (UV)RX_SUBLEN(rx); | |
6502e081 DM |
381 | *p++ = (UV)RX_SUBOFFSET(rx); |
382 | *p++ = (UV)RX_SUBCOFFSET(rx); | |
07bc277f NC |
383 | for (i = 0; i <= RX_NPARENS(rx); ++i) { |
384 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
385 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 386 | } |
387 | } | |
388 | ||
9c105995 NC |
389 | static void |
390 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 391 | { |
392 | UV *p = (UV*)*rsp; | |
393 | U32 i; | |
7918f24d NC |
394 | |
395 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 396 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 397 | |
ed252734 | 398 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 399 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 400 | *p++ = 0; |
6c31ff74 | 401 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 402 | |
db2c6cb3 | 403 | #ifdef PERL_ANY_COW |
bdd9a1b1 NC |
404 | if (RX_SAVED_COPY(rx)) |
405 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
406 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
407 | *p++ = 0; |
408 | #endif | |
409 | ||
07bc277f NC |
410 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
411 | RX_SUBLEN(rx) = (I32)(*p++); | |
6502e081 DM |
412 | RX_SUBOFFSET(rx) = (I32)*p++; |
413 | RX_SUBCOFFSET(rx) = (I32)*p++; | |
07bc277f NC |
414 | for (i = 0; i <= RX_NPARENS(rx); ++i) { |
415 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
416 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 417 | } |
418 | } | |
419 | ||
9c105995 NC |
420 | static void |
421 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 422 | { |
44f8325f | 423 | UV * const p = (UV*)*rsp; |
7918f24d NC |
424 | |
425 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 426 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 427 | |
428 | if (p) { | |
94010e71 | 429 | void *tmp = INT2PTR(char*,*p); |
6c31ff74 | 430 | #ifdef PERL_POISON |
db2c6cb3 | 431 | #ifdef PERL_ANY_COW |
6c31ff74 | 432 | U32 i = 9 + p[1] * 2; |
94010e71 | 433 | #else |
6c31ff74 | 434 | U32 i = 8 + p[1] * 2; |
94010e71 | 435 | #endif |
6c31ff74 NC |
436 | #endif |
437 | ||
db2c6cb3 | 438 | #ifdef PERL_ANY_COW |
6c31ff74 | 439 | SvREFCNT_dec (INT2PTR(SV*,p[2])); |
ed252734 | 440 | #endif |
6c31ff74 NC |
441 | #ifdef PERL_POISON |
442 | PoisonFree(p, i, sizeof(UV)); | |
443 | #endif | |
444 | ||
445 | Safefree(tmp); | |
c90c0ff4 | 446 | Safefree(p); |
4608196e | 447 | *rsp = NULL; |
c90c0ff4 | 448 | } |
449 | } | |
450 | ||
a701009a DM |
451 | #define FORM_NUM_BLANK (1<<30) |
452 | #define FORM_NUM_POINT (1<<29) | |
453 | ||
a0d0e21e LW |
454 | PP(pp_formline) |
455 | { | |
20b7effb | 456 | dSP; dMARK; dORIGMARK; |
eb578fdb | 457 | SV * const tmpForm = *++MARK; |
086b26f3 | 458 | SV *formsv; /* contains text of original format */ |
eb578fdb KW |
459 | U32 *fpc; /* format ops program counter */ |
460 | char *t; /* current append position in target string */ | |
086b26f3 | 461 | const char *f; /* current position in format string */ |
eb578fdb KW |
462 | I32 arg; |
463 | SV *sv = NULL; /* current item */ | |
086b26f3 | 464 | const char *item = NULL;/* string value of current item */ |
9b4bdfd4 DM |
465 | I32 itemsize = 0; /* length (chars) of item, possibly truncated */ |
466 | I32 itembytes = 0; /* as itemsize, but length in bytes */ | |
086b26f3 DM |
467 | I32 fieldsize = 0; /* width of current field */ |
468 | I32 lines = 0; /* number of lines that have been output */ | |
469 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); /* does $: have space */ | |
470 | const char *chophere = NULL; /* where to chop current item */ | |
f5ada144 | 471 | STRLEN linemark = 0; /* pos of start of line in output */ |
65202027 | 472 | NV value; |
086b26f3 | 473 | bool gotsome = FALSE; /* seen at least one non-blank item on this line */ |
9b4bdfd4 | 474 | STRLEN len; /* length of current sv */ |
26e935cf | 475 | STRLEN linemax; /* estimate of output size in bytes */ |
1bd51a4c IH |
476 | bool item_is_utf8 = FALSE; |
477 | bool targ_is_utf8 = FALSE; | |
bd7084a6 | 478 | const char *fmt; |
74e0ddf7 | 479 | MAGIC *mg = NULL; |
4ff700b9 DM |
480 | U8 *source; /* source of bytes to append */ |
481 | STRLEN to_copy; /* how may bytes to append */ | |
ea60cfe8 | 482 | char trans; /* what chars to translate */ |
74e0ddf7 | 483 | |
3808a683 | 484 | mg = doparseform(tmpForm); |
a0d0e21e | 485 | |
74e0ddf7 | 486 | fpc = (U32*)mg->mg_ptr; |
3808a683 DM |
487 | /* the actual string the format was compiled from. |
488 | * with overload etc, this may not match tmpForm */ | |
489 | formsv = mg->mg_obj; | |
490 | ||
74e0ddf7 | 491 | |
3280af22 | 492 | SvPV_force(PL_formtarget, len); |
3808a683 | 493 | if (SvTAINTED(tmpForm) || SvTAINTED(formsv)) |
125b9982 | 494 | SvTAINTED_on(PL_formtarget); |
1bd51a4c IH |
495 | if (DO_UTF8(PL_formtarget)) |
496 | targ_is_utf8 = TRUE; | |
26e935cf DM |
497 | linemax = (SvCUR(formsv) * (IN_BYTES ? 1 : 3) + 1); |
498 | t = SvGROW(PL_formtarget, len + linemax + 1); | |
499 | /* XXX from now onwards, SvCUR(PL_formtarget) is invalid */ | |
a0d0e21e | 500 | t += len; |
3808a683 | 501 | f = SvPV_const(formsv, len); |
a0d0e21e LW |
502 | |
503 | for (;;) { | |
504 | DEBUG_f( { | |
bfed75c6 | 505 | const char *name = "???"; |
a0d0e21e LW |
506 | arg = -1; |
507 | switch (*fpc) { | |
508 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
509 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
510 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
511 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
512 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
513 | ||
514 | case FF_CHECKNL: name = "CHECKNL"; break; | |
515 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
516 | case FF_SPACE: name = "SPACE"; break; | |
517 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
518 | case FF_ITEM: name = "ITEM"; break; | |
519 | case FF_CHOP: name = "CHOP"; break; | |
520 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
521 | case FF_NEWLINE: name = "NEWLINE"; break; | |
522 | case FF_MORE: name = "MORE"; break; | |
523 | case FF_LINEMARK: name = "LINEMARK"; break; | |
524 | case FF_END: name = "END"; break; | |
bfed75c6 | 525 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 526 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
527 | } |
528 | if (arg >= 0) | |
bf49b057 | 529 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 530 | else |
bf49b057 | 531 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 532 | } ); |
a0d0e21e | 533 | switch (*fpc++) { |
4a73dc0b | 534 | case FF_LINEMARK: /* start (or end) of a line */ |
f5ada144 | 535 | linemark = t - SvPVX(PL_formtarget); |
a0d0e21e LW |
536 | lines++; |
537 | gotsome = FALSE; | |
538 | break; | |
539 | ||
4a73dc0b | 540 | case FF_LITERAL: /* append <arg> literal chars */ |
ea60cfe8 DM |
541 | to_copy = *fpc++; |
542 | source = (U8 *)f; | |
543 | f += to_copy; | |
544 | trans = '~'; | |
75645721 | 545 | item_is_utf8 = targ_is_utf8 ? !!DO_UTF8(formsv) : !!SvUTF8(formsv); |
ea60cfe8 | 546 | goto append; |
a0d0e21e | 547 | |
4a73dc0b | 548 | case FF_SKIP: /* skip <arg> chars in format */ |
a0d0e21e LW |
549 | f += *fpc++; |
550 | break; | |
551 | ||
4a73dc0b | 552 | case FF_FETCH: /* get next item and set field size to <arg> */ |
a0d0e21e LW |
553 | arg = *fpc++; |
554 | f += arg; | |
555 | fieldsize = arg; | |
556 | ||
557 | if (MARK < SP) | |
558 | sv = *++MARK; | |
559 | else { | |
3280af22 | 560 | sv = &PL_sv_no; |
a2a5de95 | 561 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e | 562 | } |
125b9982 NT |
563 | if (SvTAINTED(sv)) |
564 | SvTAINTED_on(PL_formtarget); | |
a0d0e21e LW |
565 | break; |
566 | ||
4a73dc0b | 567 | case FF_CHECKNL: /* find max len of item (up to \n) that fits field */ |
5a34cab7 | 568 | { |
5a34cab7 | 569 | const char *s = item = SvPV_const(sv, len); |
9b4bdfd4 DM |
570 | const char *send = s + len; |
571 | ||
572 | itemsize = 0; | |
573 | item_is_utf8 = DO_UTF8(sv); | |
574 | while (s < send) { | |
575 | if (!isCNTRL(*s)) | |
576 | gotsome = TRUE; | |
577 | else if (*s == '\n') | |
578 | break; | |
579 | ||
580 | if (item_is_utf8) | |
581 | s += UTF8SKIP(s); | |
582 | else | |
583 | s++; | |
584 | itemsize++; | |
585 | if (itemsize == fieldsize) | |
586 | break; | |
587 | } | |
588 | itembytes = s - item; | |
5a34cab7 | 589 | break; |
a0ed51b3 | 590 | } |
a0d0e21e | 591 | |
4a73dc0b | 592 | case FF_CHECKCHOP: /* like CHECKNL, but up to highest split point */ |
5a34cab7 NC |
593 | { |
594 | const char *s = item = SvPV_const(sv, len); | |
9b4bdfd4 DM |
595 | const char *send = s + len; |
596 | I32 size = 0; | |
597 | ||
598 | chophere = NULL; | |
599 | item_is_utf8 = DO_UTF8(sv); | |
600 | while (s < send) { | |
601 | /* look for a legal split position */ | |
602 | if (isSPACE(*s)) { | |
603 | if (*s == '\r') { | |
604 | chophere = s; | |
605 | itemsize = size; | |
606 | break; | |
607 | } | |
608 | if (chopspace) { | |
609 | /* provisional split point */ | |
610 | chophere = s; | |
611 | itemsize = size; | |
612 | } | |
613 | /* we delay testing fieldsize until after we've | |
614 | * processed the possible split char directly | |
615 | * following the last field char; so if fieldsize=3 | |
616 | * and item="a b cdef", we consume "a b", not "a". | |
617 | * Ditto further down. | |
618 | */ | |
619 | if (size == fieldsize) | |
620 | break; | |
621 | } | |
622 | else { | |
623 | if (strchr(PL_chopset, *s)) { | |
624 | /* provisional split point */ | |
625 | /* for a non-space split char, we include | |
626 | * the split char; hence the '+1' */ | |
627 | chophere = s + 1; | |
628 | itemsize = size; | |
629 | } | |
630 | if (size == fieldsize) | |
631 | break; | |
632 | if (!isCNTRL(*s)) | |
633 | gotsome = TRUE; | |
634 | } | |
635 | ||
636 | if (item_is_utf8) | |
637 | s += UTF8SKIP(s); | |
638 | else | |
077dbbf3 | 639 | s++; |
9b4bdfd4 DM |
640 | size++; |
641 | } | |
642 | if (!chophere || s == send) { | |
643 | chophere = s; | |
644 | itemsize = size; | |
645 | } | |
646 | itembytes = chophere - item; | |
647 | ||
5a34cab7 | 648 | break; |
a0d0e21e | 649 | } |
a0d0e21e | 650 | |
4a73dc0b | 651 | case FF_SPACE: /* append padding space (diff of field, item size) */ |
a0d0e21e LW |
652 | arg = fieldsize - itemsize; |
653 | if (arg) { | |
654 | fieldsize -= arg; | |
655 | while (arg-- > 0) | |
656 | *t++ = ' '; | |
657 | } | |
658 | break; | |
659 | ||
4a73dc0b | 660 | case FF_HALFSPACE: /* like FF_SPACE, but only append half as many */ |
a0d0e21e LW |
661 | arg = fieldsize - itemsize; |
662 | if (arg) { | |
663 | arg /= 2; | |
664 | fieldsize -= arg; | |
665 | while (arg-- > 0) | |
666 | *t++ = ' '; | |
667 | } | |
668 | break; | |
669 | ||
4a73dc0b | 670 | case FF_ITEM: /* append a text item, while blanking ctrl chars */ |
9b4bdfd4 | 671 | to_copy = itembytes; |
8aa7beb6 DM |
672 | source = (U8 *)item; |
673 | trans = 1; | |
8aa7beb6 | 674 | goto append; |
a0d0e21e | 675 | |
4a73dc0b | 676 | case FF_CHOP: /* (for ^*) chop the current item */ |
5a34cab7 NC |
677 | { |
678 | const char *s = chophere; | |
679 | if (chopspace) { | |
af68e756 | 680 | while (isSPACE(*s)) |
5a34cab7 NC |
681 | s++; |
682 | } | |
9b4bdfd4 DM |
683 | if (SvPOKp(sv)) |
684 | sv_chop(sv,s); | |
685 | else | |
686 | /* tied, overloaded or similar strangeness. | |
687 | * Do it the hard way */ | |
688 | sv_setpvn(sv, s, len - (s-item)); | |
5a34cab7 NC |
689 | SvSETMAGIC(sv); |
690 | break; | |
a0d0e21e | 691 | } |
a0d0e21e | 692 | |
4a73dc0b | 693 | case FF_LINESNGL: /* process ^* */ |
a1b95068 | 694 | chopspace = 0; |
c67159e1 | 695 | /* FALLTHROUGH */ |
4a73dc0b DM |
696 | |
697 | case FF_LINEGLOB: /* process @* */ | |
5a34cab7 | 698 | { |
e32383e2 | 699 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 700 | const char *s = item = SvPV_const(sv, len); |
7440a75b | 701 | const char *const send = s + len; |
7440a75b | 702 | |
f3f2f1a3 | 703 | item_is_utf8 = DO_UTF8(sv); |
a1137ee5 | 704 | if (!len) |
7440a75b | 705 | break; |
ea60cfe8 | 706 | trans = 0; |
0d21cefe | 707 | gotsome = TRUE; |
a1137ee5 | 708 | chophere = s + len; |
4ff700b9 DM |
709 | source = (U8 *) s; |
710 | to_copy = len; | |
0d21cefe DM |
711 | while (s < send) { |
712 | if (*s++ == '\n') { | |
713 | if (oneline) { | |
9b4bdfd4 | 714 | to_copy = s - item - 1; |
0d21cefe DM |
715 | chophere = s; |
716 | break; | |
717 | } else { | |
718 | if (s == send) { | |
0d21cefe DM |
719 | to_copy--; |
720 | } else | |
721 | lines++; | |
1bd51a4c | 722 | } |
a0d0e21e | 723 | } |
0d21cefe | 724 | } |
a2c0032b DM |
725 | } |
726 | ||
ea60cfe8 DM |
727 | append: |
728 | /* append to_copy bytes from source to PL_formstring. | |
729 | * item_is_utf8 implies source is utf8. | |
730 | * if trans, translate certain characters during the copy */ | |
a2c0032b DM |
731 | { |
732 | U8 *tmp = NULL; | |
26e935cf | 733 | STRLEN grow = 0; |
0325ce87 DM |
734 | |
735 | SvCUR_set(PL_formtarget, | |
736 | t - SvPVX_const(PL_formtarget)); | |
737 | ||
0d21cefe DM |
738 | if (targ_is_utf8 && !item_is_utf8) { |
739 | source = tmp = bytes_to_utf8(source, &to_copy); | |
0d21cefe DM |
740 | } else { |
741 | if (item_is_utf8 && !targ_is_utf8) { | |
f5ada144 | 742 | U8 *s; |
0d21cefe | 743 | /* Upgrade targ to UTF8, and then we reduce it to |
0325ce87 DM |
744 | a problem we have a simple solution for. |
745 | Don't need get magic. */ | |
0d21cefe | 746 | sv_utf8_upgrade_nomg(PL_formtarget); |
0325ce87 | 747 | targ_is_utf8 = TRUE; |
f5ada144 DM |
748 | /* re-calculate linemark */ |
749 | s = (U8*)SvPVX(PL_formtarget); | |
26e935cf DM |
750 | /* the bytes we initially allocated to append the |
751 | * whole line may have been gobbled up during the | |
752 | * upgrade, so allocate a whole new line's worth | |
753 | * for safety */ | |
754 | grow = linemax; | |
f5ada144 DM |
755 | while (linemark--) |
756 | s += UTF8SKIP(s); | |
757 | linemark = s - (U8*)SvPVX(PL_formtarget); | |
e8e72d41 | 758 | } |
0d21cefe DM |
759 | /* Easy. They agree. */ |
760 | assert (item_is_utf8 == targ_is_utf8); | |
761 | } | |
26e935cf DM |
762 | if (!trans) |
763 | /* @* and ^* are the only things that can exceed | |
764 | * the linemax, so grow by the output size, plus | |
765 | * a whole new form's worth in case of any further | |
766 | * output */ | |
767 | grow = linemax + to_copy; | |
768 | if (grow) | |
769 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + grow + 1); | |
0d21cefe DM |
770 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
771 | ||
772 | Copy(source, t, to_copy, char); | |
ea60cfe8 | 773 | if (trans) { |
8aa7beb6 DM |
774 | /* blank out ~ or control chars, depending on trans. |
775 | * works on bytes not chars, so relies on not | |
776 | * matching utf8 continuation bytes */ | |
ea60cfe8 DM |
777 | U8 *s = (U8*)t; |
778 | U8 *send = s + to_copy; | |
779 | while (s < send) { | |
8aa7beb6 | 780 | const int ch = *s; |
077dbbf3 | 781 | if (trans == '~' ? (ch == '~') : isCNTRL(ch)) |
ea60cfe8 DM |
782 | *s = ' '; |
783 | s++; | |
784 | } | |
785 | } | |
786 | ||
0d21cefe DM |
787 | t += to_copy; |
788 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
a1137ee5 | 789 | if (tmp) |
0d21cefe | 790 | Safefree(tmp); |
5a34cab7 | 791 | break; |
a0d0e21e | 792 | } |
a0d0e21e | 793 | |
4a73dc0b | 794 | case FF_0DECIMAL: /* like FF_DECIMAL but for 0### */ |
a0d0e21e | 795 | arg = *fpc++; |
bd7084a6 | 796 | fmt = (const char *) |
a029fa42 | 797 | ((arg & FORM_NUM_POINT) ? "%#0*.*" NVff : "%0*.*" NVff); |
bd7084a6 | 798 | goto ff_dec; |
5d37acd6 | 799 | |
bd7084a6 DM |
800 | case FF_DECIMAL: /* do @##, ^##, where <arg>=(precision|flags) */ |
801 | arg = *fpc++; | |
bd7084a6 | 802 | fmt = (const char *) |
a029fa42 | 803 | ((arg & FORM_NUM_POINT) ? "%#*.*" NVff : "%*.*" NVff); |
bd7084a6 | 804 | ff_dec: |
784707d5 JP |
805 | /* If the field is marked with ^ and the value is undefined, |
806 | blank it out. */ | |
a701009a | 807 | if ((arg & FORM_NUM_BLANK) && !SvOK(sv)) { |
784707d5 JP |
808 | arg = fieldsize; |
809 | while (arg--) | |
810 | *t++ = ' '; | |
811 | break; | |
812 | } | |
813 | gotsome = TRUE; | |
814 | value = SvNV(sv); | |
a1b95068 | 815 | /* overflow evidence */ |
bfed75c6 | 816 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
817 | arg = fieldsize; |
818 | while (arg--) | |
819 | *t++ = '#'; | |
820 | break; | |
821 | } | |
784707d5 JP |
822 | /* Formats aren't yet marked for locales, so assume "yes". */ |
823 | { | |
e8549682 JH |
824 | Size_t max = SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)); |
825 | int len; | |
a2287a13 | 826 | DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED(); |
51f14a05 | 827 | arg &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
b587c0e8 DM |
828 | /* we generate fmt ourselves so it is safe */ |
829 | GCC_DIAG_IGNORE(-Wformat-nonliteral); | |
e8549682 JH |
830 | len = my_snprintf(t, max, fmt, (int) fieldsize, (int) arg, value); |
831 | PERL_MY_SNPRINTF_POST_GUARD(len, max); | |
b587c0e8 | 832 | GCC_DIAG_RESTORE; |
a2287a13 | 833 | RESTORE_LC_NUMERIC(); |
784707d5 JP |
834 | } |
835 | t += fieldsize; | |
836 | break; | |
a1b95068 | 837 | |
4a73dc0b | 838 | case FF_NEWLINE: /* delete trailing spaces, then append \n */ |
a0d0e21e | 839 | f++; |
f5ada144 | 840 | while (t-- > (SvPVX(PL_formtarget) + linemark) && *t == ' ') ; |
a0d0e21e LW |
841 | t++; |
842 | *t++ = '\n'; | |
843 | break; | |
844 | ||
4a73dc0b | 845 | case FF_BLANK: /* for arg==0: do '~'; for arg>0 : do '~~' */ |
a0d0e21e LW |
846 | arg = *fpc++; |
847 | if (gotsome) { | |
848 | if (arg) { /* repeat until fields exhausted? */ | |
11f9eeaf DM |
849 | fpc--; |
850 | goto end; | |
a0d0e21e LW |
851 | } |
852 | } | |
853 | else { | |
f5ada144 | 854 | t = SvPVX(PL_formtarget) + linemark; |
a0d0e21e LW |
855 | lines--; |
856 | } | |
857 | break; | |
858 | ||
4a73dc0b | 859 | case FF_MORE: /* replace long end of string with '...' */ |
5a34cab7 NC |
860 | { |
861 | const char *s = chophere; | |
862 | const char *send = item + len; | |
863 | if (chopspace) { | |
af68e756 | 864 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 865 | s++; |
a0d0e21e | 866 | } |
5a34cab7 NC |
867 | if (s < send) { |
868 | char *s1; | |
869 | arg = fieldsize - itemsize; | |
870 | if (arg) { | |
871 | fieldsize -= arg; | |
872 | while (arg-- > 0) | |
873 | *t++ = ' '; | |
874 | } | |
875 | s1 = t - 3; | |
876 | if (strnEQ(s1," ",3)) { | |
877 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
878 | s1--; | |
879 | } | |
880 | *s1++ = '.'; | |
881 | *s1++ = '.'; | |
882 | *s1++ = '.'; | |
a0d0e21e | 883 | } |
5a34cab7 | 884 | break; |
a0d0e21e | 885 | } |
4a73dc0b DM |
886 | |
887 | case FF_END: /* tidy up, then return */ | |
11f9eeaf | 888 | end: |
bf2bec63 | 889 | assert(t < SvPVX_const(PL_formtarget) + SvLEN(PL_formtarget)); |
a0d0e21e | 890 | *t = '\0'; |
b15aece3 | 891 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
892 | if (targ_is_utf8) |
893 | SvUTF8_on(PL_formtarget); | |
3280af22 | 894 | FmLINES(PL_formtarget) += lines; |
a0d0e21e | 895 | SP = ORIGMARK; |
11f9eeaf DM |
896 | if (fpc[-1] == FF_BLANK) |
897 | RETURNOP(cLISTOP->op_first); | |
898 | else | |
899 | RETPUSHYES; | |
a0d0e21e LW |
900 | } |
901 | } | |
902 | } | |
903 | ||
904 | PP(pp_grepstart) | |
905 | { | |
20b7effb | 906 | dSP; |
a0d0e21e LW |
907 | SV *src; |
908 | ||
3280af22 | 909 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 910 | (void)POPMARK; |
54310121 | 911 | if (GIMME_V == G_SCALAR) |
6e449a3a | 912 | mXPUSHi(0); |
533c011a | 913 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 914 | } |
3280af22 | 915 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
897d3989 NC |
916 | Perl_pp_pushmark(aTHX); /* push dst */ |
917 | Perl_pp_pushmark(aTHX); /* push src */ | |
d343c3ef | 918 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
919 | |
920 | SAVETMPS; | |
59f00321 RGS |
921 | if (PL_op->op_private & OPpGREP_LEX) |
922 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
923 | else | |
924 | SAVE_DEFSV; | |
d343c3ef | 925 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 926 | SAVEVPTR(PL_curpm); |
a0d0e21e | 927 | |
3280af22 | 928 | src = PL_stack_base[*PL_markstack_ptr]; |
60779a30 DM |
929 | if (SvPADTMP(src)) { |
930 | assert(!IS_PADGV(src)); | |
a0ed822e FC |
931 | src = PL_stack_base[*PL_markstack_ptr] = sv_mortalcopy(src); |
932 | PL_tmps_floor++; | |
933 | } | |
a0d0e21e | 934 | SvTEMP_off(src); |
59f00321 RGS |
935 | if (PL_op->op_private & OPpGREP_LEX) |
936 | PAD_SVl(PL_op->op_targ) = src; | |
937 | else | |
414bf5ae | 938 | DEFSV_set(src); |
a0d0e21e LW |
939 | |
940 | PUTBACK; | |
533c011a | 941 | if (PL_op->op_type == OP_MAPSTART) |
897d3989 | 942 | Perl_pp_pushmark(aTHX); /* push top */ |
533c011a | 943 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
944 | } |
945 | ||
a0d0e21e LW |
946 | PP(pp_mapwhile) |
947 | { | |
20b7effb | 948 | dSP; |
f54cb97a | 949 | const I32 gimme = GIMME_V; |
544f3153 | 950 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
951 | I32 count; |
952 | I32 shift; | |
953 | SV** src; | |
ac27b0f5 | 954 | SV** dst; |
a0d0e21e | 955 | |
544f3153 | 956 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 957 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
958 | |
959 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 960 | if (items && gimme != G_VOID) { |
544f3153 GS |
961 | /* might need to make room back there first */ |
962 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
963 | /* XXX this implementation is very pessimal because the stack | |
964 | * is repeatedly extended for every set of items. Is possible | |
965 | * to do this without any stack extension or copying at all | |
966 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 967 | * (like foreach does). --gsar */ |
544f3153 GS |
968 | |
969 | /* everything in the stack after the destination list moves | |
970 | * towards the end the stack by the amount of room needed */ | |
971 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
972 | ||
973 | /* items to shift up (accounting for the moved source pointer) */ | |
974 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
975 | |
976 | /* This optimization is by Ben Tilly and it does | |
977 | * things differently from what Sarathy (gsar) | |
978 | * is describing. The downside of this optimization is | |
979 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
980 | * to the Perl stack, but on the other hand this | |
981 | * shouldn't be a problem. If Sarathy's idea gets | |
982 | * implemented, this optimization should become | |
983 | * irrelevant. --jhi */ | |
984 | if (shift < count) | |
985 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 986 | |
924508f0 GS |
987 | EXTEND(SP,shift); |
988 | src = SP; | |
989 | dst = (SP += shift); | |
3280af22 NIS |
990 | PL_markstack_ptr[-1] += shift; |
991 | *PL_markstack_ptr += shift; | |
544f3153 | 992 | while (count--) |
a0d0e21e LW |
993 | *dst-- = *src--; |
994 | } | |
544f3153 | 995 | /* copy the new items down to the destination list */ |
ac27b0f5 | 996 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 | 997 | if (gimme == G_ARRAY) { |
b2a2a901 DM |
998 | /* add returned items to the collection (making mortal copies |
999 | * if necessary), then clear the current temps stack frame | |
1000 | * *except* for those items. We do this splicing the items | |
1001 | * into the start of the tmps frame (so some items may be on | |
59d53fd6 | 1002 | * the tmps stack twice), then moving PL_tmps_floor above |
b2a2a901 DM |
1003 | * them, then freeing the frame. That way, the only tmps that |
1004 | * accumulate over iterations are the return values for map. | |
1005 | * We have to do to this way so that everything gets correctly | |
1006 | * freed if we die during the map. | |
1007 | */ | |
1008 | I32 tmpsbase; | |
1009 | I32 i = items; | |
1010 | /* make space for the slice */ | |
1011 | EXTEND_MORTAL(items); | |
1012 | tmpsbase = PL_tmps_floor + 1; | |
1013 | Move(PL_tmps_stack + tmpsbase, | |
1014 | PL_tmps_stack + tmpsbase + items, | |
1015 | PL_tmps_ix - PL_tmps_floor, | |
1016 | SV*); | |
1017 | PL_tmps_ix += items; | |
1018 | ||
1019 | while (i-- > 0) { | |
1020 | SV *sv = POPs; | |
1021 | if (!SvTEMP(sv)) | |
1022 | sv = sv_mortalcopy(sv); | |
1023 | *dst-- = sv; | |
1024 | PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv); | |
1025 | } | |
1026 | /* clear the stack frame except for the items */ | |
1027 | PL_tmps_floor += items; | |
1028 | FREETMPS; | |
1029 | /* FREETMPS may have cleared the TEMP flag on some of the items */ | |
1030 | i = items; | |
1031 | while (i-- > 0) | |
1032 | SvTEMP_on(PL_tmps_stack[--tmpsbase]); | |
22023b26 | 1033 | } |
bfed75c6 | 1034 | else { |
22023b26 TP |
1035 | /* scalar context: we don't care about which values map returns |
1036 | * (we use undef here). And so we certainly don't want to do mortal | |
1037 | * copies of meaningless values. */ | |
1038 | while (items-- > 0) { | |
b988aa42 | 1039 | (void)POPs; |
22023b26 TP |
1040 | *dst-- = &PL_sv_undef; |
1041 | } | |
b2a2a901 | 1042 | FREETMPS; |
22023b26 | 1043 | } |
a0d0e21e | 1044 | } |
b2a2a901 DM |
1045 | else { |
1046 | FREETMPS; | |
1047 | } | |
d343c3ef | 1048 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1049 | |
1050 | /* All done yet? */ | |
3280af22 | 1051 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1052 | |
1053 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1054 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1055 | (void)POPMARK; /* pop src */ |
3280af22 | 1056 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1057 | (void)POPMARK; /* pop dst */ |
3280af22 | 1058 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1059 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1060 | if (PL_op->op_private & OPpGREP_LEX) { |
1061 | SV* sv = sv_newmortal(); | |
1062 | sv_setiv(sv, items); | |
1063 | PUSHs(sv); | |
1064 | } | |
1065 | else { | |
1066 | dTARGET; | |
1067 | XPUSHi(items); | |
1068 | } | |
a0d0e21e | 1069 | } |
54310121 | 1070 | else if (gimme == G_ARRAY) |
1071 | SP += items; | |
a0d0e21e LW |
1072 | RETURN; |
1073 | } | |
1074 | else { | |
1075 | SV *src; | |
1076 | ||
d343c3ef | 1077 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1078 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1079 | |
544f3153 | 1080 | /* set $_ to the new source item */ |
3280af22 | 1081 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
60779a30 DM |
1082 | if (SvPADTMP(src)) { |
1083 | assert(!IS_PADGV(src)); | |
1084 | src = sv_mortalcopy(src); | |
1085 | } | |
a0d0e21e | 1086 | SvTEMP_off(src); |
59f00321 RGS |
1087 | if (PL_op->op_private & OPpGREP_LEX) |
1088 | PAD_SVl(PL_op->op_targ) = src; | |
1089 | else | |
414bf5ae | 1090 | DEFSV_set(src); |
a0d0e21e LW |
1091 | |
1092 | RETURNOP(cLOGOP->op_other); | |
1093 | } | |
1094 | } | |
1095 | ||
a0d0e21e LW |
1096 | /* Range stuff. */ |
1097 | ||
1098 | PP(pp_range) | |
1099 | { | |
1100 | if (GIMME == G_ARRAY) | |
1a67a97c | 1101 | return NORMAL; |
538573f7 | 1102 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1103 | return cLOGOP->op_other; |
538573f7 | 1104 | else |
1a67a97c | 1105 | return NORMAL; |
a0d0e21e LW |
1106 | } |
1107 | ||
1108 | PP(pp_flip) | |
1109 | { | |
39644a26 | 1110 | dSP; |
a0d0e21e LW |
1111 | |
1112 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1113 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1114 | } |
1115 | else { | |
1116 | dTOPss; | |
44f8325f | 1117 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1118 | int flip = 0; |
790090df | 1119 | |
bfed75c6 | 1120 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1121 | if (GvIO(PL_last_in_gv)) { |
1122 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1123 | } | |
1124 | else { | |
fafc274c | 1125 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1126 | if (gv && GvSV(gv)) |
1127 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1128 | } |
bfed75c6 AL |
1129 | } else { |
1130 | flip = SvTRUE(sv); | |
1131 | } | |
1132 | if (flip) { | |
a0d0e21e | 1133 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1134 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1135 | sv_setiv(targ, 1); |
3e3baf6d | 1136 | SETs(targ); |
a0d0e21e LW |
1137 | RETURN; |
1138 | } | |
1139 | else { | |
1140 | sv_setiv(targ, 0); | |
924508f0 | 1141 | SP--; |
1a67a97c | 1142 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1143 | } |
1144 | } | |
76f68e9b | 1145 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1146 | SETs(targ); |
1147 | RETURN; | |
1148 | } | |
1149 | } | |
1150 | ||
8e9bbdb9 RGS |
1151 | /* This code tries to decide if "$left .. $right" should use the |
1152 | magical string increment, or if the range is numeric (we make | |
1153 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1154 | ||
1155 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1156 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1157 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1158 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1159 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1160 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1161 | |
a0d0e21e LW |
1162 | PP(pp_flop) |
1163 | { | |
20b7effb | 1164 | dSP; |
a0d0e21e LW |
1165 | |
1166 | if (GIMME == G_ARRAY) { | |
1167 | dPOPPOPssrl; | |
86cb7173 | 1168 | |
5b295bef RD |
1169 | SvGETMAGIC(left); |
1170 | SvGETMAGIC(right); | |
a0d0e21e | 1171 | |
8e9bbdb9 | 1172 | if (RANGE_IS_NUMERIC(left,right)) { |
b262c4c9 | 1173 | IV i, j, n; |
4d91eccc FC |
1174 | if ((SvOK(left) && !SvIOK(left) && SvNV_nomg(left) < IV_MIN) || |
1175 | (SvOK(right) && (SvIOK(right) | |
1176 | ? SvIsUV(right) && SvUV(right) > IV_MAX | |
1177 | : SvNV_nomg(right) > IV_MAX))) | |
d470f89e | 1178 | DIE(aTHX_ "Range iterator outside integer range"); |
f52e41ad | 1179 | i = SvIV_nomg(left); |
b262c4c9 JH |
1180 | j = SvIV_nomg(right); |
1181 | if (j >= i) { | |
1182 | /* Dance carefully around signed max. */ | |
1183 | bool overflow = (i <= 0 && j > SSize_t_MAX + i - 1); | |
1184 | if (!overflow) { | |
1185 | n = j - i + 1; | |
1186 | /* The wraparound of signed integers is undefined | |
1187 | * behavior, but here we aim for count >=1, and | |
1188 | * negative count is just wrong. */ | |
1189 | if (n < 1) | |
1190 | overflow = TRUE; | |
1191 | } | |
1192 | if (overflow) | |
1193 | Perl_croak(aTHX_ "Out of memory during list extend"); | |
1194 | EXTEND_MORTAL(n); | |
1195 | EXTEND(SP, n); | |
bbce6d69 | 1196 | } |
c1ab3db2 | 1197 | else |
b262c4c9 JH |
1198 | n = 0; |
1199 | while (n--) { | |
901017d6 | 1200 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1201 | PUSHs(sv); |
1202 | } | |
1203 | } | |
1204 | else { | |
3c323193 FC |
1205 | STRLEN len, llen; |
1206 | const char * const lpv = SvPV_nomg_const(left, llen); | |
f52e41ad | 1207 | const char * const tmps = SvPV_nomg_const(right, len); |
a0d0e21e | 1208 | |
3c323193 | 1209 | SV *sv = newSVpvn_flags(lpv, llen, SvUTF8(left)|SVs_TEMP); |
89ea2908 | 1210 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1211 | XPUSHs(sv); |
b15aece3 | 1212 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1213 | break; |
a0d0e21e LW |
1214 | sv = sv_2mortal(newSVsv(sv)); |
1215 | sv_inc(sv); | |
1216 | } | |
a0d0e21e LW |
1217 | } |
1218 | } | |
1219 | else { | |
1220 | dTOPss; | |
901017d6 | 1221 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1222 | int flop = 0; |
a0d0e21e | 1223 | sv_inc(targ); |
4e3399f9 YST |
1224 | |
1225 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1226 | if (GvIO(PL_last_in_gv)) { | |
1227 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1228 | } | |
1229 | else { | |
fafc274c | 1230 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1231 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1232 | } | |
1233 | } | |
1234 | else { | |
1235 | flop = SvTRUE(sv); | |
1236 | } | |
1237 | ||
1238 | if (flop) { | |
a0d0e21e | 1239 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1240 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1241 | } |
1242 | SETs(targ); | |
1243 | } | |
1244 | ||
1245 | RETURN; | |
1246 | } | |
1247 | ||
1248 | /* Control. */ | |
1249 | ||
27da23d5 | 1250 | static const char * const context_name[] = { |
515afda2 | 1251 | "pseudo-block", |
f31522f3 | 1252 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1253 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1254 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1255 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1256 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1257 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1258 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1259 | "subroutine", |
76753e7f | 1260 | "format", |
515afda2 | 1261 | "eval", |
515afda2 | 1262 | "substitution", |
515afda2 NC |
1263 | }; |
1264 | ||
76e3520e | 1265 | STATIC I32 |
5db1eb8d | 1266 | S_dopoptolabel(pTHX_ const char *label, STRLEN len, U32 flags) |
a0d0e21e | 1267 | { |
eb578fdb | 1268 | I32 i; |
a0d0e21e | 1269 | |
7918f24d NC |
1270 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1271 | ||
a0d0e21e | 1272 | for (i = cxstack_ix; i >= 0; i--) { |
eb578fdb | 1273 | const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1274 | switch (CxTYPE(cx)) { |
a0d0e21e | 1275 | case CXt_SUBST: |
a0d0e21e | 1276 | case CXt_SUB: |
7766f137 | 1277 | case CXt_FORMAT: |
a0d0e21e | 1278 | case CXt_EVAL: |
0a753a76 | 1279 | case CXt_NULL: |
dcbac5bb | 1280 | /* diag_listed_as: Exiting subroutine via %s */ |
a2a5de95 NC |
1281 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1282 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1283 | if (CxTYPE(cx) == CXt_NULL) |
1284 | return -1; | |
1285 | break; | |
c6fdafd0 | 1286 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1287 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1288 | case CXt_LOOP_FOR: |
1289 | case CXt_LOOP_PLAIN: | |
7e8f1eac | 1290 | { |
5db1eb8d BF |
1291 | STRLEN cx_label_len = 0; |
1292 | U32 cx_label_flags = 0; | |
1293 | const char *cx_label = CxLABEL_len_flags(cx, &cx_label_len, &cx_label_flags); | |
1294 | if (!cx_label || !( | |
1295 | ( (cx_label_flags & SVf_UTF8) != (flags & SVf_UTF8) ) ? | |
1296 | (flags & SVf_UTF8) | |
1297 | ? (bytes_cmp_utf8( | |
1298 | (const U8*)cx_label, cx_label_len, | |
1299 | (const U8*)label, len) == 0) | |
1300 | : (bytes_cmp_utf8( | |
1301 | (const U8*)label, len, | |
1302 | (const U8*)cx_label, cx_label_len) == 0) | |
eade7155 BF |
1303 | : (len == cx_label_len && ((cx_label == label) |
1304 | || memEQ(cx_label, label, len))) )) { | |
1c98cc53 | 1305 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1306 | (long)i, cx_label)); |
a0d0e21e LW |
1307 | continue; |
1308 | } | |
1c98cc53 | 1309 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1310 | return i; |
7e8f1eac | 1311 | } |
a0d0e21e LW |
1312 | } |
1313 | } | |
1314 | return i; | |
1315 | } | |
1316 | ||
0d863452 RH |
1317 | |
1318 | ||
e50aee73 | 1319 | I32 |
864dbfa3 | 1320 | Perl_dowantarray(pTHX) |
e50aee73 | 1321 | { |
f54cb97a | 1322 | const I32 gimme = block_gimme(); |
54310121 | 1323 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1324 | } | |
1325 | ||
1326 | I32 | |
864dbfa3 | 1327 | Perl_block_gimme(pTHX) |
54310121 | 1328 | { |
06b5626a | 1329 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1330 | if (cxix < 0) |
46fc3d4c | 1331 | return G_VOID; |
e50aee73 | 1332 | |
54310121 | 1333 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1334 | case G_VOID: |
1335 | return G_VOID; | |
54310121 | 1336 | case G_SCALAR: |
e50aee73 | 1337 | return G_SCALAR; |
54310121 | 1338 | case G_ARRAY: |
1339 | return G_ARRAY; | |
1340 | default: | |
cea2e8a9 | 1341 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
54310121 | 1342 | } |
a25b5927 | 1343 | NOT_REACHED; /* NOTREACHED */ |
e50aee73 AD |
1344 | } |
1345 | ||
78f9721b SM |
1346 | I32 |
1347 | Perl_is_lvalue_sub(pTHX) | |
1348 | { | |
06b5626a | 1349 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1350 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1351 | ||
bafb2adc NC |
1352 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1353 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1354 | else |
1355 | return 0; | |
1356 | } | |
1357 | ||
777d9014 FC |
1358 | /* only used by PUSHSUB */ |
1359 | I32 | |
1360 | Perl_was_lvalue_sub(pTHX) | |
1361 | { | |
777d9014 FC |
1362 | const I32 cxix = dopoptosub(cxstack_ix-1); |
1363 | assert(cxix >= 0); /* We should only be called from inside subs */ | |
1364 | ||
1365 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) | |
1366 | return CxLVAL(cxstack + cxix); | |
1367 | else | |
1368 | return 0; | |
1369 | } | |
1370 | ||
76e3520e | 1371 | STATIC I32 |
901017d6 | 1372 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1373 | { |
a0d0e21e | 1374 | I32 i; |
7918f24d NC |
1375 | |
1376 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
81611534 JH |
1377 | #ifndef DEBUGGING |
1378 | PERL_UNUSED_CONTEXT; | |
1379 | #endif | |
7918f24d | 1380 | |
a0d0e21e | 1381 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1382 | const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1383 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1384 | default: |
1385 | continue; | |
a0d0e21e | 1386 | case CXt_SUB: |
5fbe8311 DM |
1387 | /* in sub foo { /(?{...})/ }, foo ends up on the CX stack |
1388 | * twice; the first for the normal foo() call, and the second | |
1389 | * for a faked up re-entry into the sub to execute the | |
1390 | * code block. Hide this faked entry from the world. */ | |
1391 | if (cx->cx_type & CXp_SUB_RE_FAKE) | |
1392 | continue; | |
c67159e1 | 1393 | /* FALLTHROUGH */ |
5fbe8311 | 1394 | case CXt_EVAL: |
7766f137 | 1395 | case CXt_FORMAT: |
1c98cc53 | 1396 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1397 | return i; |
1398 | } | |
1399 | } | |
1400 | return i; | |
1401 | } | |
1402 | ||
76e3520e | 1403 | STATIC I32 |
cea2e8a9 | 1404 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e LW |
1405 | { |
1406 | I32 i; | |
a0d0e21e | 1407 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1408 | const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1409 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1410 | default: |
1411 | continue; | |
1412 | case CXt_EVAL: | |
1c98cc53 | 1413 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval 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_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e LW |
1422 | { |
1423 | I32 i; | |
a0d0e21e | 1424 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1425 | const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1426 | switch (CxTYPE(cx)) { |
a0d0e21e | 1427 | case CXt_SUBST: |
a0d0e21e | 1428 | case CXt_SUB: |
7766f137 | 1429 | case CXt_FORMAT: |
a0d0e21e | 1430 | case CXt_EVAL: |
0a753a76 | 1431 | case CXt_NULL: |
dcbac5bb | 1432 | /* diag_listed_as: Exiting subroutine via %s */ |
a2a5de95 NC |
1433 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1434 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1435 | if ((CxTYPE(cx)) == CXt_NULL) |
1436 | return -1; | |
1437 | break; | |
c6fdafd0 | 1438 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1439 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1440 | case CXt_LOOP_FOR: |
1441 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1442 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1443 | return i; |
1444 | } | |
1445 | } | |
1446 | return i; | |
1447 | } | |
1448 | ||
0d863452 RH |
1449 | STATIC I32 |
1450 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1451 | { | |
1452 | I32 i; | |
1453 | for (i = startingblock; i >= 0; i--) { | |
eb578fdb | 1454 | const PERL_CONTEXT *cx = &cxstack[i]; |
0d863452 RH |
1455 | switch (CxTYPE(cx)) { |
1456 | default: | |
1457 | continue; | |
1458 | case CXt_GIVEN: | |
1c98cc53 | 1459 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1460 | return i; |
3b719c58 NC |
1461 | case CXt_LOOP_PLAIN: |
1462 | assert(!CxFOREACHDEF(cx)); | |
1463 | break; | |
c6fdafd0 | 1464 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1465 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1466 | case CXt_LOOP_FOR: |
0d863452 | 1467 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1468 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1469 | return i; |
1470 | } | |
1471 | } | |
1472 | } | |
1473 | return i; | |
1474 | } | |
1475 | ||
1476 | STATIC I32 | |
1477 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1478 | { | |
1479 | I32 i; | |
1480 | for (i = startingblock; i >= 0; i--) { | |
eb578fdb | 1481 | const PERL_CONTEXT *cx = &cxstack[i]; |
0d863452 RH |
1482 | switch (CxTYPE(cx)) { |
1483 | default: | |
1484 | continue; | |
1485 | case CXt_WHEN: | |
1c98cc53 | 1486 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1487 | return i; |
1488 | } | |
1489 | } | |
1490 | return i; | |
1491 | } | |
1492 | ||
a0d0e21e | 1493 | void |
864dbfa3 | 1494 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1495 | { |
a0d0e21e LW |
1496 | I32 optype; |
1497 | ||
f144f1e3 DM |
1498 | if (!PL_curstackinfo) /* can happen if die during thread cloning */ |
1499 | return; | |
1500 | ||
a0d0e21e | 1501 | while (cxstack_ix > cxix) { |
b0d9ce38 | 1502 | SV *sv; |
eb578fdb | 1503 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1504 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1505 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1506 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1507 | case CXt_SUBST: |
1508 | POPSUBST(cx); | |
1509 | continue; /* not break */ | |
a0d0e21e | 1510 | case CXt_SUB: |
b0d9ce38 GS |
1511 | POPSUB(cx,sv); |
1512 | LEAVESUB(sv); | |
a0d0e21e LW |
1513 | break; |
1514 | case CXt_EVAL: | |
1515 | POPEVAL(cx); | |
1516 | break; | |
c6fdafd0 | 1517 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1518 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1519 | case CXt_LOOP_FOR: |
1520 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1521 | POPLOOP(cx); |
1522 | break; | |
0a753a76 | 1523 | case CXt_NULL: |
a0d0e21e | 1524 | break; |
7766f137 GS |
1525 | case CXt_FORMAT: |
1526 | POPFORMAT(cx); | |
1527 | break; | |
a0d0e21e | 1528 | } |
c90c0ff4 | 1529 | cxstack_ix--; |
a0d0e21e | 1530 | } |
1b6737cc | 1531 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1532 | } |
1533 | ||
5a844595 GS |
1534 | void |
1535 | Perl_qerror(pTHX_ SV *err) | |
1536 | { | |
7918f24d NC |
1537 | PERL_ARGS_ASSERT_QERROR; |
1538 | ||
6b2fb389 DM |
1539 | if (PL_in_eval) { |
1540 | if (PL_in_eval & EVAL_KEEPERR) { | |
ecad31f0 BF |
1541 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %"SVf, |
1542 | SVfARG(err)); | |
6b2fb389 DM |
1543 | } |
1544 | else | |
1545 | sv_catsv(ERRSV, err); | |
1546 | } | |
5a844595 GS |
1547 | else if (PL_errors) |
1548 | sv_catsv(PL_errors, err); | |
1549 | else | |
be2597df | 1550 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1551 | if (PL_parser) |
1552 | ++PL_parser->error_count; | |
5a844595 GS |
1553 | } |
1554 | ||
bb4c52e0 | 1555 | void |
c5df3096 | 1556 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1557 | { |
c5df3096 | 1558 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1559 | U8 in_eval = PL_in_eval; |
c5df3096 | 1560 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1561 | |
96d9b9cd | 1562 | if (in_eval) { |
a0d0e21e | 1563 | I32 cxix; |
a0d0e21e | 1564 | I32 gimme; |
a0d0e21e | 1565 | |
22a30693 Z |
1566 | /* |
1567 | * Historically, perl used to set ERRSV ($@) early in the die | |
1568 | * process and rely on it not getting clobbered during unwinding. | |
1569 | * That sucked, because it was liable to get clobbered, so the | |
1570 | * setting of ERRSV used to emit the exception from eval{} has | |
1571 | * been moved to much later, after unwinding (see just before | |
1572 | * JMPENV_JUMP below). However, some modules were relying on the | |
1573 | * early setting, by examining $@ during unwinding to use it as | |
1574 | * a flag indicating whether the current unwinding was caused by | |
1575 | * an exception. It was never a reliable flag for that purpose, | |
1576 | * being totally open to false positives even without actual | |
1577 | * clobberage, but was useful enough for production code to | |
1578 | * semantically rely on it. | |
1579 | * | |
1580 | * We'd like to have a proper introspective interface that | |
1581 | * explicitly describes the reason for whatever unwinding | |
1582 | * operations are currently in progress, so that those modules | |
1583 | * work reliably and $@ isn't further overloaded. But we don't | |
1584 | * have one yet. In its absence, as a stopgap measure, ERRSV is | |
1585 | * now *additionally* set here, before unwinding, to serve as the | |
1586 | * (unreliable) flag that it used to. | |
1587 | * | |
1588 | * This behaviour is temporary, and should be removed when a | |
1589 | * proper way to detect exceptional unwinding has been developed. | |
1590 | * As of 2010-12, the authors of modules relying on the hack | |
1591 | * are aware of the issue, because the modules failed on | |
1592 | * perls 5.13.{1..7} which had late setting of $@ without this | |
1593 | * early-setting hack. | |
1594 | */ | |
1595 | if (!(in_eval & EVAL_KEEPERR)) { | |
1596 | SvTEMP_off(exceptsv); | |
1597 | sv_setsv(ERRSV, exceptsv); | |
1598 | } | |
1599 | ||
fc941f37 Z |
1600 | if (in_eval & EVAL_KEEPERR) { |
1601 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %"SVf, | |
1602 | SVfARG(exceptsv)); | |
1603 | } | |
1604 | ||
5a844595 GS |
1605 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1606 | && PL_curstackinfo->si_prev) | |
1607 | { | |
bac4b2ad | 1608 | dounwind(-1); |
d3acc0f7 | 1609 | POPSTACK; |
bac4b2ad | 1610 | } |
e336de0d | 1611 | |
a0d0e21e LW |
1612 | if (cxix >= 0) { |
1613 | I32 optype; | |
b6494f15 | 1614 | SV *namesv; |
eb578fdb | 1615 | PERL_CONTEXT *cx; |
901017d6 | 1616 | SV **newsp; |
e32ff4e1 | 1617 | #ifdef DEBUGGING |
8f89e5a9 | 1618 | COP *oldcop; |
20189068 | 1619 | #endif |
8f89e5a9 Z |
1620 | JMPENV *restartjmpenv; |
1621 | OP *restartop; | |
a0d0e21e LW |
1622 | |
1623 | if (cxix < cxstack_ix) | |
1624 | dounwind(cxix); | |
1625 | ||
3280af22 | 1626 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1627 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1628 | STRLEN msglen; |
96d9b9cd | 1629 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1630 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1631 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1632 | my_exit(1); |
1633 | } | |
1634 | POPEVAL(cx); | |
b6494f15 | 1635 | namesv = cx->blk_eval.old_namesv; |
e32ff4e1 | 1636 | #ifdef DEBUGGING |
8f89e5a9 | 1637 | oldcop = cx->blk_oldcop; |
20189068 | 1638 | #endif |
8f89e5a9 Z |
1639 | restartjmpenv = cx->blk_eval.cur_top_env; |
1640 | restartop = cx->blk_eval.retop; | |
a0d0e21e LW |
1641 | |
1642 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1643 | *++newsp = &PL_sv_undef; |
1644 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1645 | |
1646 | LEAVE; | |
748a9306 | 1647 | |
7a2e2cd6 | 1648 | if (optype == OP_REQUIRE) { |
e32ff4e1 | 1649 | assert (PL_curcop == oldcop); |
b6494f15 | 1650 | (void)hv_store(GvHVn(PL_incgv), |
ecad31f0 | 1651 | SvPVX_const(namesv), |
c60dbbc3 | 1652 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
27bcc0a7 | 1653 | &PL_sv_undef, 0); |
27e90453 DM |
1654 | /* note that unlike pp_entereval, pp_require isn't |
1655 | * supposed to trap errors. So now that we've popped the | |
1656 | * EVAL that pp_require pushed, and processed the error | |
1657 | * message, rethrow the error */ | |
ecad31f0 BF |
1658 | Perl_croak(aTHX_ "%"SVf"Compilation failed in require", |
1659 | SVfARG(exceptsv ? exceptsv : newSVpvs_flags("Unknown error\n", | |
1660 | SVs_TEMP))); | |
7a2e2cd6 | 1661 | } |
fc941f37 | 1662 | if (!(in_eval & EVAL_KEEPERR)) |
96d9b9cd | 1663 | sv_setsv(ERRSV, exceptsv); |
8f89e5a9 Z |
1664 | PL_restartjmpenv = restartjmpenv; |
1665 | PL_restartop = restartop; | |
bb4c52e0 | 1666 | JMPENV_JUMP(3); |
a25b5927 | 1667 | assert(0); /* NOTREACHED */ |
a0d0e21e LW |
1668 | } |
1669 | } | |
87582a92 | 1670 | |
96d9b9cd | 1671 | write_to_stderr(exceptsv); |
f86702cc | 1672 | my_failure_exit(); |
a25b5927 | 1673 | assert(0); /* NOTREACHED */ |
a0d0e21e LW |
1674 | } |
1675 | ||
1676 | PP(pp_xor) | |
1677 | { | |
20b7effb | 1678 | dSP; dPOPTOPssrl; |
a0d0e21e LW |
1679 | if (SvTRUE(left) != SvTRUE(right)) |
1680 | RETSETYES; | |
1681 | else | |
1682 | RETSETNO; | |
1683 | } | |
1684 | ||
8dff4fc5 | 1685 | /* |
dcccc8ff KW |
1686 | |
1687 | =head1 CV Manipulation Functions | |
1688 | ||
8dff4fc5 BM |
1689 | =for apidoc caller_cx |
1690 | ||
72d33970 | 1691 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The |
8dff4fc5 | 1692 | returned C<PERL_CONTEXT> structure can be interrogated to find all the |
72d33970 | 1693 | information returned to Perl by C<caller>. Note that XSUBs don't get a |
8dff4fc5 BM |
1694 | stack frame, so C<caller_cx(0, NULL)> will return information for the |
1695 | immediately-surrounding Perl code. | |
1696 | ||
1697 | This function skips over the automatic calls to C<&DB::sub> made on the | |
72d33970 | 1698 | behalf of the debugger. If the stack frame requested was a sub called by |
8dff4fc5 BM |
1699 | C<DB::sub>, the return value will be the frame for the call to |
1700 | C<DB::sub>, since that has the correct line number/etc. for the call | |
72d33970 | 1701 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the |
8dff4fc5 BM |
1702 | frame for the sub call itself. |
1703 | ||
1704 | =cut | |
1705 | */ | |
1706 | ||
1707 | const PERL_CONTEXT * | |
1708 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1709 | { |
eb578fdb KW |
1710 | I32 cxix = dopoptosub(cxstack_ix); |
1711 | const PERL_CONTEXT *cx; | |
1712 | const PERL_CONTEXT *ccstack = cxstack; | |
901017d6 | 1713 | const PERL_SI *top_si = PL_curstackinfo; |
27d41816 | 1714 | |
a0d0e21e | 1715 | for (;;) { |
2c375eb9 GS |
1716 | /* we may be in a higher stacklevel, so dig down deeper */ |
1717 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1718 | top_si = top_si->si_prev; | |
1719 | ccstack = top_si->si_cxstack; | |
1720 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1721 | } | |
8dff4fc5 BM |
1722 | if (cxix < 0) |
1723 | return NULL; | |
f2a7f298 DG |
1724 | /* caller() should not report the automatic calls to &DB::sub */ |
1725 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1726 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1727 | count++; |
1728 | if (!count--) | |
1729 | break; | |
2c375eb9 | 1730 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1731 | } |
2c375eb9 GS |
1732 | |
1733 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1734 | if (dbcxp) *dbcxp = cx; |
1735 | ||
7766f137 | 1736 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1737 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1738 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1739 | field below is defined for any cx. */ |
f2a7f298 DG |
1740 | /* caller() should not report the automatic calls to &DB::sub */ |
1741 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1742 | cx = &ccstack[dbcxix]; |
06a5b730 | 1743 | } |
1744 | ||
8dff4fc5 BM |
1745 | return cx; |
1746 | } | |
1747 | ||
1748 | PP(pp_caller) | |
1749 | { | |
8dff4fc5 | 1750 | dSP; |
eb578fdb | 1751 | const PERL_CONTEXT *cx; |
8dff4fc5 BM |
1752 | const PERL_CONTEXT *dbcx; |
1753 | I32 gimme; | |
d527ce7c | 1754 | const HEK *stash_hek; |
8dff4fc5 | 1755 | I32 count = 0; |
ce0b554b | 1756 | bool has_arg = MAXARG && TOPs; |
25502127 | 1757 | const COP *lcop; |
8dff4fc5 | 1758 | |
ce0b554b FC |
1759 | if (MAXARG) { |
1760 | if (has_arg) | |
8dff4fc5 | 1761 | count = POPi; |
ce0b554b FC |
1762 | else (void)POPs; |
1763 | } | |
8dff4fc5 | 1764 | |
ce0b554b | 1765 | cx = caller_cx(count + !!(PL_op->op_private & OPpOFFBYONE), &dbcx); |
8dff4fc5 BM |
1766 | if (!cx) { |
1767 | if (GIMME != G_ARRAY) { | |
1768 | EXTEND(SP, 1); | |
1769 | RETPUSHUNDEF; | |
1770 | } | |
1771 | RETURN; | |
1772 | } | |
1773 | ||
fb55feef | 1774 | DEBUG_CX("CALLER"); |
d0279c7c | 1775 | assert(CopSTASH(cx->blk_oldcop)); |
e7886211 FC |
1776 | stash_hek = SvTYPE(CopSTASH(cx->blk_oldcop)) == SVt_PVHV |
1777 | ? HvNAME_HEK((HV*)CopSTASH(cx->blk_oldcop)) | |
1778 | : NULL; | |
a0d0e21e | 1779 | if (GIMME != G_ARRAY) { |
27d41816 | 1780 | EXTEND(SP, 1); |
d527ce7c | 1781 | if (!stash_hek) |
3280af22 | 1782 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1783 | else { |
1784 | dTARGET; | |
d527ce7c | 1785 | sv_sethek(TARG, stash_hek); |
49d8d3a1 MB |
1786 | PUSHs(TARG); |
1787 | } | |
a0d0e21e LW |
1788 | RETURN; |
1789 | } | |
a0d0e21e | 1790 | |
b3ca2e83 | 1791 | EXTEND(SP, 11); |
27d41816 | 1792 | |
d527ce7c | 1793 | if (!stash_hek) |
3280af22 | 1794 | PUSHs(&PL_sv_undef); |
d527ce7c BF |
1795 | else { |
1796 | dTARGET; | |
1797 | sv_sethek(TARG, stash_hek); | |
1798 | PUSHTARG; | |
1799 | } | |
6e449a3a | 1800 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); |
1ed44841 | 1801 | lcop = closest_cop(cx->blk_oldcop, OP_SIBLING(cx->blk_oldcop), |
25502127 FC |
1802 | cx->blk_sub.retop, TRUE); |
1803 | if (!lcop) | |
1804 | lcop = cx->blk_oldcop; | |
1805 | mPUSHi((I32)CopLINE(lcop)); | |
ce0b554b | 1806 | if (!has_arg) |
a0d0e21e | 1807 | RETURN; |
7766f137 | 1808 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1809 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1810 | /* So is ccstack[dbcxix]. */ |
81ed78b2 | 1811 | if (cvgv && isGV(cvgv)) { |
561b68a9 | 1812 | SV * const sv = newSV(0); |
c445ea15 | 1813 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1814 | mPUSHs(sv); |
bf38a478 | 1815 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1816 | } |
1817 | else { | |
84bafc02 | 1818 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1819 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1820 | } |
a0d0e21e LW |
1821 | } |
1822 | else { | |
84bafc02 | 1823 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1824 | mPUSHi(0); |
a0d0e21e | 1825 | } |
54310121 | 1826 | gimme = (I32)cx->blk_gimme; |
1827 | if (gimme == G_VOID) | |
3280af22 | 1828 | PUSHs(&PL_sv_undef); |
54310121 | 1829 | else |
98625aca | 1830 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1831 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1832 | /* eval STRING */ |
85a64632 | 1833 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
78beb4ca TC |
1834 | SV *cur_text = cx->blk_eval.cur_text; |
1835 | if (SvCUR(cur_text) >= 2) { | |
1836 | PUSHs(newSVpvn_flags(SvPVX(cur_text), SvCUR(cur_text)-2, | |
1837 | SvUTF8(cur_text)|SVs_TEMP)); | |
1838 | } | |
1839 | else { | |
1840 | /* I think this is will always be "", but be sure */ | |
1841 | PUSHs(sv_2mortal(newSVsv(cur_text))); | |
1842 | } | |
1843 | ||
3280af22 | 1844 | PUSHs(&PL_sv_no); |
0f79a09d | 1845 | } |
811a4de9 | 1846 | /* require */ |
0f79a09d | 1847 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1848 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1849 | PUSHs(&PL_sv_yes); |
06a5b730 | 1850 | } |
811a4de9 GS |
1851 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1852 | else { | |
1853 | PUSHs(&PL_sv_undef); | |
1854 | PUSHs(&PL_sv_undef); | |
1855 | } | |
4633a7c4 | 1856 | } |
a682de96 GS |
1857 | else { |
1858 | PUSHs(&PL_sv_undef); | |
1859 | PUSHs(&PL_sv_undef); | |
1860 | } | |
bafb2adc | 1861 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1862 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1863 | { |
66a1b24b | 1864 | AV * const ary = cx->blk_sub.argarray; |
c70927a6 | 1865 | const SSize_t off = AvARRAY(ary) - AvALLOC(ary); |
a0d0e21e | 1866 | |
e1a80902 | 1867 | Perl_init_dbargs(aTHX); |
a0d0e21e | 1868 | |
3280af22 NIS |
1869 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1870 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1871 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1872 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1873 | } |
6e449a3a | 1874 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1875 | { |
1876 | SV * mask ; | |
72dc9ed5 | 1877 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1878 | |
f07626ad | 1879 | if (old_warnings == pWARN_NONE) |
e476b1b5 | 1880 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
f07626ad FC |
1881 | else if (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0) |
1882 | mask = &PL_sv_undef ; | |
ac27b0f5 | 1883 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1884 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1885 | /* Get the bit mask for $warnings::Bits{all}, because | |
1886 | * it could have been extended by warnings::register */ | |
1887 | SV **bits_all; | |
6673a63c | 1888 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1889 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1890 | mask = newSVsv(*bits_all); |
1891 | } | |
1892 | else { | |
1893 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1894 | } | |
1895 | } | |
e476b1b5 | 1896 | else |
72dc9ed5 | 1897 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1898 | mPUSHs(mask); |
e476b1b5 | 1899 | } |
b3ca2e83 | 1900 | |
c28fe1ec | 1901 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
20439bc7 | 1902 | sv_2mortal(newRV_noinc(MUTABLE_SV(cop_hints_2hv(cx->blk_oldcop, 0)))) |
b3ca2e83 | 1903 | : &PL_sv_undef); |
a0d0e21e LW |
1904 | RETURN; |
1905 | } | |
1906 | ||
a0d0e21e LW |
1907 | PP(pp_reset) |
1908 | { | |
39644a26 | 1909 | dSP; |
ca826051 FC |
1910 | const char * tmps; |
1911 | STRLEN len = 0; | |
1912 | if (MAXARG < 1 || (!TOPs && !POPs)) | |
1913 | tmps = NULL, len = 0; | |
1914 | else | |
1915 | tmps = SvPVx_const(POPs, len); | |
1916 | sv_resetpvn(tmps, len, CopSTASH(PL_curcop)); | |
3280af22 | 1917 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1918 | RETURN; |
1919 | } | |
1920 | ||
dd2155a4 DM |
1921 | /* like pp_nextstate, but used instead when the debugger is active */ |
1922 | ||
a0d0e21e LW |
1923 | PP(pp_dbstate) |
1924 | { | |
533c011a | 1925 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1926 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1927 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1928 | FREETMPS; |
1929 | ||
f410a211 NC |
1930 | PERL_ASYNC_CHECK(); |
1931 | ||
88df5f01 | 1932 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
5df8de69 | 1933 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) |
a0d0e21e | 1934 | { |
39644a26 | 1935 | dSP; |
eb578fdb | 1936 | PERL_CONTEXT *cx; |
f54cb97a | 1937 | const I32 gimme = G_ARRAY; |
eb160463 | 1938 | U8 hasargs; |
0bd48802 | 1939 | GV * const gv = PL_DBgv; |
432d4561 JL |
1940 | CV * cv = NULL; |
1941 | ||
1942 | if (gv && isGV_with_GP(gv)) | |
1943 | cv = GvCV(gv); | |
a0d0e21e | 1944 | |
c2cb6f77 | 1945 | if (!cv || (!CvROOT(cv) && !CvXSUB(cv))) |
cea2e8a9 | 1946 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1947 | |
aea4f609 DM |
1948 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1949 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1950 | return NORMAL; |
748a9306 | 1951 | |
a57c6685 | 1952 | ENTER; |
4633a7c4 LW |
1953 | SAVETMPS; |
1954 | ||
3280af22 | 1955 | SAVEI32(PL_debug); |
55497cff | 1956 | SAVESTACK_POS(); |
3280af22 | 1957 | PL_debug = 0; |
748a9306 | 1958 | hasargs = 0; |
924508f0 | 1959 | SPAGAIN; |
748a9306 | 1960 | |
aed2304a | 1961 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1962 | PUSHMARK(SP); |
1963 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
c127bd3a | 1964 | FREETMPS; |
a57c6685 | 1965 | LEAVE; |
c127bd3a SF |
1966 | return NORMAL; |
1967 | } | |
1968 | else { | |
1969 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1970 | PUSHSUB_DB(cx); | |
1971 | cx->blk_sub.retop = PL_op->op_next; | |
1972 | CvDEPTH(cv)++; | |
9d976ff5 FC |
1973 | if (CvDEPTH(cv) >= 2) { |
1974 | PERL_STACK_OVERFLOW_CHECK(); | |
1975 | pad_push(CvPADLIST(cv), CvDEPTH(cv)); | |
1976 | } | |
c127bd3a | 1977 | SAVECOMPPAD(); |
9d976ff5 | 1978 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv)); |
c127bd3a SF |
1979 | RETURNOP(CvSTART(cv)); |
1980 | } | |
a0d0e21e LW |
1981 | } |
1982 | else | |
1983 | return NORMAL; | |
1984 | } | |
1985 | ||
2ec7f6f2 FC |
1986 | /* SVs on the stack that have any of the flags passed in are left as is. |
1987 | Other SVs are protected via the mortals stack if lvalue is true, and | |
1988 | copied otherwise. */ | |
1989 | ||
b9d76716 | 1990 | STATIC SV ** |
2ec7f6f2 FC |
1991 | S_adjust_stack_on_leave(pTHX_ SV **newsp, SV **sp, SV **mark, I32 gimme, |
1992 | U32 flags, bool lvalue) | |
b9d76716 | 1993 | { |
9a214eec | 1994 | bool padtmp = 0; |
b9d76716 VP |
1995 | PERL_ARGS_ASSERT_ADJUST_STACK_ON_LEAVE; |
1996 | ||
9a214eec DM |
1997 | if (flags & SVs_PADTMP) { |
1998 | flags &= ~SVs_PADTMP; | |
1999 | padtmp = 1; | |
2000 | } | |
b9d76716 VP |
2001 | if (gimme == G_SCALAR) { |
2002 | if (MARK < SP) | |
9a214eec | 2003 | *++newsp = ((SvFLAGS(*SP) & flags) || (padtmp && SvPADTMP(*SP))) |
2ec7f6f2 FC |
2004 | ? *SP |
2005 | : lvalue | |
2006 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*SP)) | |
2007 | : sv_mortalcopy(*SP); | |
b9d76716 VP |
2008 | else { |
2009 | /* MEXTEND() only updates MARK, so reuse it instead of newsp. */ | |
2010 | MARK = newsp; | |
2011 | MEXTEND(MARK, 1); | |
2012 | *++MARK = &PL_sv_undef; | |
2013 | return MARK; | |
2014 | } | |
2015 | } | |
2016 | else if (gimme == G_ARRAY) { | |
2017 | /* in case LEAVE wipes old return values */ | |
2018 | while (++MARK <= SP) { | |
9a214eec | 2019 | if ((SvFLAGS(*MARK) & flags) || (padtmp && SvPADTMP(*MARK))) |
b9d76716 VP |
2020 | *++newsp = *MARK; |
2021 | else { | |
2ec7f6f2 FC |
2022 | *++newsp = lvalue |
2023 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)) | |
2024 | : sv_mortalcopy(*MARK); | |
b9d76716 VP |
2025 | TAINT_NOT; /* Each item is independent */ |
2026 | } | |
2027 | } | |
2028 | /* When this function was called with MARK == newsp, we reach this | |
2029 | * point with SP == newsp. */ | |
2030 | } | |
2031 | ||
2032 | return newsp; | |
2033 | } | |
2034 | ||
2b9a6457 VP |
2035 | PP(pp_enter) |
2036 | { | |
20b7effb | 2037 | dSP; |
eb578fdb | 2038 | PERL_CONTEXT *cx; |
7c2d9d03 | 2039 | I32 gimme = GIMME_V; |
2b9a6457 VP |
2040 | |
2041 | ENTER_with_name("block"); | |
2042 | ||
2043 | SAVETMPS; | |
2044 | PUSHBLOCK(cx, CXt_BLOCK, SP); | |
2045 | ||
2046 | RETURN; | |
2047 | } | |
2048 | ||
2049 | PP(pp_leave) | |
2050 | { | |
20b7effb | 2051 | dSP; |
eb578fdb | 2052 | PERL_CONTEXT *cx; |
2b9a6457 VP |
2053 | SV **newsp; |
2054 | PMOP *newpm; | |
2055 | I32 gimme; | |
2056 | ||
2057 | if (PL_op->op_flags & OPf_SPECIAL) { | |
2058 | cx = &cxstack[cxstack_ix]; | |
2059 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ | |
2060 | } | |
2061 | ||
2062 | POPBLOCK(cx,newpm); | |
2063 | ||
2064 | gimme = OP_GIMME(PL_op, (cxstack_ix >= 0) ? gimme : G_SCALAR); | |
2065 | ||
2066 | TAINT_NOT; | |
2ec7f6f2 FC |
2067 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP, |
2068 | PL_op->op_private & OPpLVALUE); | |
2b9a6457 VP |
2069 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
2070 | ||
2071 | LEAVE_with_name("block"); | |
2072 | ||
2073 | RETURN; | |
2074 | } | |
2075 | ||
a0d0e21e LW |
2076 | PP(pp_enteriter) |
2077 | { | |
20b7effb | 2078 | dSP; dMARK; |
eb578fdb | 2079 | PERL_CONTEXT *cx; |
f54cb97a | 2080 | const I32 gimme = GIMME_V; |
df530c37 | 2081 | void *itervar; /* location of the iteration variable */ |
840fe433 | 2082 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 2083 | |
d343c3ef | 2084 | ENTER_with_name("loop1"); |
4633a7c4 LW |
2085 | SAVETMPS; |
2086 | ||
aafca525 DM |
2087 | if (PL_op->op_targ) { /* "my" variable */ |
2088 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
2089 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
2090 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
2091 | SVs_PADSTALE, SVs_PADSTALE); | |
2092 | } | |
09edbca0 | 2093 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 2094 | #ifdef USE_ITHREADS |
df530c37 | 2095 | itervar = PL_comppad; |
89e00a7c | 2096 | #else |
aafca525 | 2097 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 2098 | #endif |
54b9620d | 2099 | } |
aafca525 | 2100 | else { /* symbol table variable */ |
159b6efe | 2101 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
2102 | SV** svp = &GvSV(gv); |
2103 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 2104 | *svp = newSV(0); |
df530c37 | 2105 | itervar = (void *)gv; |
54b9620d | 2106 | } |
4633a7c4 | 2107 | |
0d863452 RH |
2108 | if (PL_op->op_private & OPpITER_DEF) |
2109 | cxtype |= CXp_FOR_DEF; | |
2110 | ||
d343c3ef | 2111 | ENTER_with_name("loop2"); |
a0d0e21e | 2112 | |
7766f137 | 2113 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 2114 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 2115 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
2116 | SV *maybe_ary = POPs; |
2117 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 2118 | dPOPss; |
d01136d6 | 2119 | SV * const right = maybe_ary; |
984a4bea RD |
2120 | SvGETMAGIC(sv); |
2121 | SvGETMAGIC(right); | |
4fe3f0fa | 2122 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2123 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2124 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2125 | /* Make sure that no-one re-orders cop.h and breaks our | |
2126 | assumptions */ | |
2127 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 | 2128 | #ifdef NV_PRESERVES_UV |
f52e41ad FC |
2129 | if ((SvOK(sv) && ((SvNV_nomg(sv) < (NV)IV_MIN) || |
2130 | (SvNV_nomg(sv) > (NV)IV_MAX))) | |
a2309040 | 2131 | || |
f52e41ad FC |
2132 | (SvOK(right) && ((SvNV_nomg(right) > (NV)IV_MAX) || |
2133 | (SvNV_nomg(right) < (NV)IV_MIN)))) | |
a2309040 | 2134 | #else |
f52e41ad | 2135 | if ((SvOK(sv) && ((SvNV_nomg(sv) <= (NV)IV_MIN) |
a2309040 | 2136 | || |
f52e41ad FC |
2137 | ((SvNV_nomg(sv) > 0) && |
2138 | ((SvUV_nomg(sv) > (UV)IV_MAX) || | |
2139 | (SvNV_nomg(sv) > (NV)UV_MAX))))) | |
a2309040 | 2140 | || |
f52e41ad | 2141 | (SvOK(right) && ((SvNV_nomg(right) <= (NV)IV_MIN) |
a2309040 | 2142 | || |
f52e41ad FC |
2143 | ((SvNV_nomg(right) > 0) && |
2144 | ((SvUV_nomg(right) > (UV)IV_MAX) || | |
2145 | (SvNV_nomg(right) > (NV)UV_MAX)) | |
2146 | )))) | |
a2309040 | 2147 | #endif |
076d9a11 | 2148 | DIE(aTHX_ "Range iterator outside integer range"); |
f52e41ad FC |
2149 | cx->blk_loop.state_u.lazyiv.cur = SvIV_nomg(sv); |
2150 | cx->blk_loop.state_u.lazyiv.end = SvIV_nomg(right); | |
d4665a05 DM |
2151 | #ifdef DEBUGGING |
2152 | /* for correct -Dstv display */ | |
2153 | cx->blk_oldsp = sp - PL_stack_base; | |
2154 | #endif | |
89ea2908 | 2155 | } |
3f63a782 | 2156 | else { |
d01136d6 BS |
2157 | cx->cx_type &= ~CXTYPEMASK; |
2158 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2159 | /* Make sure that no-one re-orders cop.h and breaks our | |
2160 | assumptions */ | |
2161 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2162 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2163 | cx->blk_loop.state_u.lazysv.end = right; | |
2164 | SvREFCNT_inc(right); | |
2165 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2166 | /* This will do the upgrade to SVt_PV, and warn if the value |
2167 | is uninitialised. */ | |
10516c54 | 2168 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2169 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2170 | to replace !SvOK() with a pointer to "". */ | |
2171 | if (!SvOK(right)) { | |
2172 | SvREFCNT_dec(right); | |
d01136d6 | 2173 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2174 | } |
3f63a782 | 2175 | } |
89ea2908 | 2176 | } |
d01136d6 | 2177 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2178 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2179 | SvREFCNT_inc(maybe_ary); |
2180 | cx->blk_loop.state_u.ary.ix = | |
2181 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2182 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2183 | -1; | |
ef3e5ea9 | 2184 | } |
89ea2908 | 2185 | } |
d01136d6 BS |
2186 | else { /* iterating over items on the stack */ |
2187 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2188 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2189 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2190 | } |
2191 | else { | |
d01136d6 | 2192 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2193 | } |
4633a7c4 | 2194 | } |
a0d0e21e LW |
2195 | |
2196 | RETURN; | |
2197 | } | |
2198 | ||
2199 | PP(pp_enterloop) | |
2200 | { | |
20b7effb | 2201 | dSP; |
eb578fdb | 2202 | PERL_CONTEXT *cx; |
f54cb97a | 2203 | const I32 gimme = GIMME_V; |
a0d0e21e | 2204 | |
d343c3ef | 2205 | ENTER_with_name("loop1"); |
a0d0e21e | 2206 | SAVETMPS; |
d343c3ef | 2207 | ENTER_with_name("loop2"); |
a0d0e21e | 2208 | |
3b719c58 NC |
2209 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2210 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2211 | |
2212 | RETURN; | |
2213 | } | |
2214 | ||
2215 | PP(pp_leaveloop) | |
2216 | { | |
20b7effb | 2217 | dSP; |
eb578fdb | 2218 | PERL_CONTEXT *cx; |
a0d0e21e LW |
2219 | I32 gimme; |
2220 | SV **newsp; | |
2221 | PMOP *newpm; | |
2222 | SV **mark; | |
2223 | ||
2224 | POPBLOCK(cx,newpm); | |
3b719c58 | 2225 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2226 | mark = newsp; |
a8bba7fa | 2227 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2228 | |
a1f49e72 | 2229 | TAINT_NOT; |
a373464f FC |
2230 | SP = adjust_stack_on_leave(newsp, SP, MARK, gimme, 0, |
2231 | PL_op->op_private & OPpLVALUE); | |
f86702cc | 2232 | PUTBACK; |
2233 | ||
a8bba7fa | 2234 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2235 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2236 | |
d343c3ef GG |
2237 | LEAVE_with_name("loop2"); |
2238 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2239 | |
f86702cc | 2240 | return NORMAL; |
a0d0e21e LW |
2241 | } |
2242 | ||
3bdf583b FC |
2243 | STATIC void |
2244 | S_return_lvalues(pTHX_ SV **mark, SV **sp, SV **newsp, I32 gimme, | |
d25b0d7b | 2245 | PERL_CONTEXT *cx, PMOP *newpm) |
3bdf583b | 2246 | { |
80422e24 | 2247 | const bool ref = !!(CxLVAL(cx) & OPpENTERSUB_INARGS); |
3bdf583b | 2248 | if (gimme == G_SCALAR) { |
d25b0d7b FC |
2249 | if (CxLVAL(cx) && !ref) { /* Leave it as it is if we can. */ |
2250 | SV *sv; | |
001de122 | 2251 | const char *what = NULL; |
d25b0d7b FC |
2252 | if (MARK < SP) { |
2253 | assert(MARK+1 == SP); | |
2254 | if ((SvPADTMP(TOPs) || | |
2255 | (SvFLAGS(TOPs) & (SVf_READONLY | SVf_FAKE)) | |
2256 | == SVf_READONLY | |
2257 | ) && | |
2258 | !SvSMAGICAL(TOPs)) { | |
001de122 | 2259 | what = |
d25b0d7b | 2260 | SvREADONLY(TOPs) ? (TOPs == &PL_sv_undef) ? "undef" |
001de122 | 2261 | : "a readonly value" : "a temporary"; |
d25b0d7b | 2262 | } |
001de122 | 2263 | else goto copy_sv; |
d25b0d7b FC |
2264 | } |
2265 | else { | |
2266 | /* sub:lvalue{} will take us here. */ | |
001de122 | 2267 | what = "undef"; |
d25b0d7b | 2268 | } |
001de122 FC |
2269 | LEAVE; |
2270 | cxstack_ix--; | |
2271 | POPSUB(cx,sv); | |
2272 | PL_curpm = newpm; | |
2273 | LEAVESUB(sv); | |
2274 | Perl_croak(aTHX_ | |
2275 | "Can't return %s from lvalue subroutine", what | |
2276 | ); | |
d25b0d7b | 2277 | } |
93905212 | 2278 | if (MARK < SP) { |
a5ad7a5a | 2279 | copy_sv: |
3bdf583b | 2280 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
5811c07e | 2281 | if (!SvPADTMP(*SP)) { |
3bdf583b FC |
2282 | *++newsp = SvREFCNT_inc(*SP); |
2283 | FREETMPS; | |
2284 | sv_2mortal(*newsp); | |
5811c07e FC |
2285 | } |
2286 | else { | |
2287 | /* FREETMPS could clobber it */ | |
2288 | SV *sv = SvREFCNT_inc(*SP); | |
2289 | FREETMPS; | |
2290 | *++newsp = sv_mortalcopy(sv); | |
2291 | SvREFCNT_dec(sv); | |
2292 | } | |
3bdf583b FC |
2293 | } |
2294 | else | |
e08be60b | 2295 | *++newsp = |
5811c07e FC |
2296 | SvPADTMP(*SP) |
2297 | ? sv_mortalcopy(*SP) | |
2298 | : !SvTEMP(*SP) | |
e08be60b FC |
2299 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*SP)) |
2300 | : *SP; | |
3bdf583b | 2301 | } |
0d235c77 FC |
2302 | else { |
2303 | EXTEND(newsp,1); | |
3bdf583b | 2304 | *++newsp = &PL_sv_undef; |
0d235c77 | 2305 | } |
0e9700df | 2306 | if (CxLVAL(cx) & OPpDEREF) { |
767eda44 FC |
2307 | SvGETMAGIC(TOPs); |
2308 | if (!SvOK(TOPs)) { | |
0e9700df | 2309 | TOPs = vivify_ref(TOPs, CxLVAL(cx) & OPpDEREF); |
767eda44 FC |
2310 | } |
2311 | } | |
3bdf583b FC |
2312 | } |
2313 | else if (gimme == G_ARRAY) { | |
0e9700df | 2314 | assert (!(CxLVAL(cx) & OPpDEREF)); |
80422e24 | 2315 | if (ref || !CxLVAL(cx)) |
e08be60b FC |
2316 | while (++MARK <= SP) |
2317 | *++newsp = | |
5811c07e | 2318 | SvFLAGS(*MARK) & SVs_PADTMP |
80422e24 | 2319 | ? sv_mortalcopy(*MARK) |
5811c07e FC |
2320 | : SvTEMP(*MARK) |
2321 | ? *MARK | |
80422e24 | 2322 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); |
e08be60b | 2323 | else while (++MARK <= SP) { |
d25b0d7b FC |
2324 | if (*MARK != &PL_sv_undef |
2325 | && (SvPADTMP(*MARK) | |
2326 | || (SvFLAGS(*MARK) & (SVf_READONLY|SVf_FAKE)) | |
2327 | == SVf_READONLY | |
2328 | ) | |
2329 | ) { | |
2330 | SV *sv; | |
2331 | /* Might be flattened array after $#array = */ | |
2332 | PUTBACK; | |
2333 | LEAVE; | |
2334 | cxstack_ix--; | |
2335 | POPSUB(cx,sv); | |
2336 | PL_curpm = newpm; | |
2337 | LEAVESUB(sv); | |
ae917476 | 2338 | /* diag_listed_as: Can't return %s from lvalue subroutine */ |
d25b0d7b FC |
2339 | Perl_croak(aTHX_ |
2340 | "Can't return a %s from lvalue subroutine", | |
2341 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); | |
2342 | } | |
2343 | else | |
4bee03f8 FC |
2344 | *++newsp = |
2345 | SvTEMP(*MARK) | |
2346 | ? *MARK | |
2347 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); | |
3bdf583b FC |
2348 | } |
2349 | } | |
2350 | PL_stack_sp = newsp; | |
2351 | } | |
2352 | ||
a0d0e21e LW |
2353 | PP(pp_return) |
2354 | { | |
20b7effb | 2355 | dSP; dMARK; |
eb578fdb | 2356 | PERL_CONTEXT *cx; |
f86702cc | 2357 | bool popsub2 = FALSE; |
b45de488 | 2358 | bool clear_errsv = FALSE; |
fa1e92c4 | 2359 | bool lval = FALSE; |
a0d0e21e LW |
2360 | I32 gimme; |
2361 | SV **newsp; | |
2362 | PMOP *newpm; | |
2363 | I32 optype = 0; | |
b6494f15 | 2364 | SV *namesv; |
b0d9ce38 | 2365 | SV *sv; |
b263a1ad | 2366 | OP *retop = NULL; |
a0d0e21e | 2367 | |
0bd48802 AL |
2368 | const I32 cxix = dopoptosub(cxstack_ix); |
2369 | ||
9850bf21 RH |
2370 | if (cxix < 0) { |
2371 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2372 | * sort block, which is a CXt_NULL | |
2373 | * not a CXt_SUB */ | |
2374 | dounwind(0); | |
d7507f74 RH |
2375 | PL_stack_base[1] = *PL_stack_sp; |
2376 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2377 | return 0; |
2378 | } | |
9850bf21 RH |
2379 | else |
2380 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2381 | } |
a0d0e21e LW |
2382 | if (cxix < cxstack_ix) |
2383 | dounwind(cxix); | |
2384 | ||
d7507f74 RH |
2385 | if (CxMULTICALL(&cxstack[cxix])) { |
2386 | gimme = cxstack[cxix].blk_gimme; | |
2387 | if (gimme == G_VOID) | |
2388 | PL_stack_sp = PL_stack_base; | |
2389 | else if (gimme == G_SCALAR) { | |
2390 | PL_stack_base[1] = *PL_stack_sp; | |
2391 | PL_stack_sp = PL_stack_base + 1; | |
2392 | } | |
9850bf21 | 2393 | return 0; |
d7507f74 | 2394 | } |
9850bf21 | 2395 | |
a0d0e21e | 2396 | POPBLOCK(cx,newpm); |
6b35e009 | 2397 | switch (CxTYPE(cx)) { |
a0d0e21e | 2398 | case CXt_SUB: |
f86702cc | 2399 | popsub2 = TRUE; |
fa1e92c4 | 2400 | lval = !!CvLVALUE(cx->blk_sub.cv); |
f39bc417 | 2401 | retop = cx->blk_sub.retop; |
5dd42e15 | 2402 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2403 | break; |
2404 | case CXt_EVAL: | |
b45de488 GS |
2405 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2406 | clear_errsv = TRUE; | |
a0d0e21e | 2407 | POPEVAL(cx); |
b6494f15 | 2408 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2409 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2410 | if (CxTRYBLOCK(cx)) |
2411 | break; | |
748a9306 LW |
2412 | if (optype == OP_REQUIRE && |
2413 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2414 | { | |
54310121 | 2415 | /* Unassume the success we assumed earlier. */ |
b6494f15 | 2416 | (void)hv_delete(GvHVn(PL_incgv), |
ecad31f0 | 2417 | SvPVX_const(namesv), |
c60dbbc3 | 2418 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 VP |
2419 | G_DISCARD); |
2420 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2421 | } |
a0d0e21e | 2422 | break; |
7766f137 | 2423 | case CXt_FORMAT: |
f39bc417 | 2424 | retop = cx->blk_sub.retop; |
25375124 | 2425 | POPFORMAT(cx); |
7766f137 | 2426 | break; |
a0d0e21e | 2427 | default: |
5637ef5b | 2428 | DIE(aTHX_ "panic: return, type=%u", (unsigned) CxTYPE(cx)); |
a0d0e21e LW |
2429 | } |
2430 | ||
a1f49e72 | 2431 | TAINT_NOT; |
d25b0d7b | 2432 | if (lval) S_return_lvalues(aTHX_ MARK, SP, newsp, gimme, cx, newpm); |
3bdf583b FC |
2433 | else { |
2434 | if (gimme == G_SCALAR) { | |
a29cdaf0 IZ |
2435 | if (MARK < SP) { |
2436 | if (popsub2) { | |
a8bba7fa | 2437 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
6f48390a FC |
2438 | if (SvTEMP(TOPs) && SvREFCNT(TOPs) == 1 |
2439 | && !SvMAGICAL(TOPs)) { | |
a29cdaf0 IZ |
2440 | *++newsp = SvREFCNT_inc(*SP); |
2441 | FREETMPS; | |
2442 | sv_2mortal(*newsp); | |
959e3673 GS |
2443 | } |
2444 | else { | |
2445 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2446 | FREETMPS; |
959e3673 GS |
2447 | *++newsp = sv_mortalcopy(sv); |
2448 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2449 | } |
959e3673 | 2450 | } |
6f48390a FC |
2451 | else if (SvTEMP(*SP) && SvREFCNT(*SP) == 1 |
2452 | && !SvMAGICAL(*SP)) { | |
767eda44 | 2453 | *++newsp = *SP; |
767eda44 | 2454 | } |
959e3673 | 2455 | else |
767eda44 | 2456 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2457 | } |
2458 | else | |
a29cdaf0 | 2459 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2460 | } |
2461 | else | |
3280af22 | 2462 | *++newsp = &PL_sv_undef; |
3bdf583b FC |
2463 | } |
2464 | else if (gimme == G_ARRAY) { | |
a1f49e72 | 2465 | while (++MARK <= SP) { |
3ed94dc0 | 2466 | *++newsp = popsub2 && SvTEMP(*MARK) && SvREFCNT(*MARK) == 1 |
6f48390a | 2467 | && !SvGMAGICAL(*MARK) |
f86702cc | 2468 | ? *MARK : sv_mortalcopy(*MARK); |
a1f49e72 CS |
2469 | TAINT_NOT; /* Each item is independent */ |
2470 | } | |
3bdf583b FC |
2471 | } |
2472 | PL_stack_sp = newsp; | |
a0d0e21e | 2473 | } |
a0d0e21e | 2474 | |
5dd42e15 | 2475 | LEAVE; |
f86702cc | 2476 | /* Stack values are safe: */ |
2477 | if (popsub2) { | |
5dd42e15 | 2478 | cxstack_ix--; |
b0d9ce38 | 2479 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2480 | } |
b0d9ce38 | 2481 | else |
c445ea15 | 2482 | sv = NULL; |
3280af22 | 2483 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2484 | |
b0d9ce38 | 2485 | LEAVESUB(sv); |
8433848b | 2486 | if (clear_errsv) { |
ab69dbc2 | 2487 | CLEAR_ERRSV(); |
8433848b | 2488 | } |
f39bc417 | 2489 | return retop; |
a0d0e21e LW |
2490 | } |
2491 | ||
4f443c3d FC |
2492 | /* This duplicates parts of pp_leavesub, so that it can share code with |
2493 | * pp_return */ | |
2494 | PP(pp_leavesublv) | |
2495 | { | |
20b7effb | 2496 | dSP; |
4f443c3d FC |
2497 | SV **newsp; |
2498 | PMOP *newpm; | |
2499 | I32 gimme; | |
eb578fdb | 2500 | PERL_CONTEXT *cx; |
4f443c3d FC |
2501 | SV *sv; |
2502 | ||
2503 | if (CxMULTICALL(&cxstack[cxstack_ix])) | |
2504 | return 0; | |
2505 | ||
2506 | POPBLOCK(cx,newpm); | |
2507 | cxstack_ix++; /* temporarily protect top context */ | |
4f443c3d FC |
2508 | |
2509 | TAINT_NOT; | |
2510 | ||
0d235c77 | 2511 | S_return_lvalues(aTHX_ newsp, SP, newsp, gimme, cx, newpm); |
4f443c3d FC |
2512 | |
2513 | LEAVE; | |
4f443c3d | 2514 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
25375124 | 2515 | cxstack_ix--; |
4f443c3d FC |
2516 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2517 | ||
2518 | LEAVESUB(sv); | |
2519 | return cx->blk_sub.retop; | |
2520 | } | |
2521 | ||
1f039d60 FC |
2522 | static I32 |
2523 | S_unwind_loop(pTHX_ const char * const opname) | |
a0d0e21e | 2524 | { |
a0d0e21e | 2525 | I32 cxix; |
1f039d60 FC |
2526 | if (PL_op->op_flags & OPf_SPECIAL) { |
2527 | cxix = dopoptoloop(cxstack_ix); | |
2528 | if (cxix < 0) | |
2529 | /* diag_listed_as: Can't "last" outside a loop block */ | |
2530 | Perl_croak(aTHX_ "Can't \"%s\" outside a loop block", opname); | |
2531 | } | |
2532 | else { | |
2533 | dSP; | |
2534 | STRLEN label_len; | |
2535 | const char * const label = | |
2536 | PL_op->op_flags & OPf_STACKED | |
2537 | ? SvPV(TOPs,label_len) | |
2538 | : (label_len = strlen(cPVOP->op_pv), cPVOP->op_pv); | |
2539 | const U32 label_flags = | |
2540 | PL_op->op_flags & OPf_STACKED | |
2541 | ? SvUTF8(POPs) | |
2542 | : (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0; | |
2543 | PUTBACK; | |
2544 | cxix = dopoptolabel(label, label_len, label_flags); | |
2545 | if (cxix < 0) | |
2546 | /* diag_listed_as: Label not found for "last %s" */ | |
2547 | Perl_croak(aTHX_ "Label not found for \"%s %"SVf"\"", | |
2548 | opname, | |
2549 | SVfARG(PL_op->op_flags & OPf_STACKED | |
2550 | && !SvGMAGICAL(TOPp1s) | |
2551 | ? TOPp1s | |
2552 | : newSVpvn_flags(label, | |
2553 | label_len, | |
2554 | label_flags | SVs_TEMP))); | |
2555 | } | |
2556 | if (cxix < cxstack_ix) | |
2557 | dounwind(cxix); | |
2558 | return cxix; | |
2559 | } | |
2560 | ||
2561 | PP(pp_last) | |
2562 | { | |
eb578fdb | 2563 | PERL_CONTEXT *cx; |
f86702cc | 2564 | I32 pop2 = 0; |
a0d0e21e | 2565 | I32 gimme; |
8772537c | 2566 | I32 optype; |
b263a1ad | 2567 | OP *nextop = NULL; |
a0d0e21e LW |
2568 | SV **newsp; |
2569 | PMOP *newpm; | |
c445ea15 | 2570 | SV *sv = NULL; |
9d4ba2ae | 2571 | |
1f039d60 | 2572 | S_unwind_loop(aTHX_ "last"); |
a0d0e21e LW |
2573 | |
2574 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2575 | cxstack_ix++; /* temporarily protect top context */ |
6b35e009 | 2576 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2577 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2578 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2579 | case CXt_LOOP_FOR: |
2580 | case CXt_LOOP_PLAIN: | |
2581 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2582 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2583 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2584 | break; |
f86702cc | 2585 | case CXt_SUB: |
f86702cc | 2586 | pop2 = CXt_SUB; |
f39bc417 | 2587 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2588 | break; |
f86702cc | 2589 | case CXt_EVAL: |
2590 | POPEVAL(cx); | |
f39bc417 | 2591 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2592 | break; |
7766f137 GS |
2593 | case CXt_FORMAT: |
2594 | POPFORMAT(cx); | |
f39bc417 | 2595 | nextop = cx->blk_sub.retop; |
7766f137 | 2596 | break; |
a0d0e21e | 2597 | default: |
5637ef5b | 2598 | DIE(aTHX_ "panic: last, type=%u", (unsigned) CxTYPE(cx)); |
a0d0e21e LW |
2599 | } |
2600 | ||
a1f49e72 | 2601 | TAINT_NOT; |
0c0c317c | 2602 | PL_stack_sp = newsp; |
f86702cc | 2603 | |
5dd42e15 DM |
2604 | LEAVE; |
2605 | cxstack_ix--; | |
f86702cc | 2606 | /* Stack values are safe: */ |
2607 | switch (pop2) { | |
c6fdafd0 | 2608 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2609 | case CXt_LOOP_PLAIN: |
d01136d6 | 2610 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2611 | case CXt_LOOP_FOR: |
a8bba7fa | 2612 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2613 | LEAVE; |
f86702cc | 2614 | break; |
2615 | case CXt_SUB: | |
b0d9ce38 | 2616 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2617 | break; |
a0d0e21e | 2618 | } |
3280af22 | 2619 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2620 | |
b0d9ce38 | 2621 | LEAVESUB(sv); |
9d4ba2ae AL |
2622 | PERL_UNUSED_VAR(optype); |
2623 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2624 | return nextop; |
a0d0e21e LW |
2625 | } |
2626 | ||
2627 | PP(pp_next) | |
2628 | { | |
eb578fdb | 2629 | PERL_CONTEXT *cx; |
1f039d60 | 2630 | const I32 inner = PL_scopestack_ix; |
a0d0e21e | 2631 | |
1f039d60 | 2632 | S_unwind_loop(aTHX_ "next"); |
a0d0e21e | 2633 | |
85538317 GS |
2634 | /* clear off anything above the scope we're re-entering, but |
2635 | * save the rest until after a possible continue block */ | |
1ba6ee2b | 2636 | TOPBLOCK(cx); |
85538317 GS |
2637 | if (PL_scopestack_ix < inner) |
2638 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2639 | PL_curcop = cx->blk_oldcop; |
47c9d59f | 2640 | PERL_ASYNC_CHECK(); |
d57ce4df | 2641 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2642 | } |
2643 | ||
2644 | PP(pp_redo) | |
2645 | { | |
1f039d60 | 2646 | const I32 cxix = S_unwind_loop(aTHX_ "redo"); |
eb578fdb | 2647 | PERL_CONTEXT *cx; |
a0d0e21e | 2648 | I32 oldsave; |
1f039d60 | 2649 | OP* redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a0d0e21e | 2650 | |
a034e688 DM |
2651 | if (redo_op->op_type == OP_ENTER) { |
2652 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2653 | cxstack_ix++; | |
2654 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2655 | redo_op = redo_op->op_next; | |
2656 | } | |
2657 | ||
a0d0e21e | 2658 | TOPBLOCK(cx); |
3280af22 | 2659 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2660 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2661 | FREETMPS; |
3a1b2b9e | 2662 | PL_curcop = cx->blk_oldcop; |
47c9d59f | 2663 | PERL_ASYNC_CHECK(); |
a034e688 | 2664 | return redo_op; |
a0d0e21e LW |
2665 | } |
2666 | ||
0824fdcb | 2667 | STATIC OP * |
5db1eb8d | 2668 | S_dofindlabel(pTHX_ OP *o, const char *label, STRLEN len, U32 flags, OP **opstack, OP **oplimit) |
a0d0e21e | 2669 | { |
a0d0e21e | 2670 | OP **ops = opstack; |
a1894d81 | 2671 | static const char* const too_deep = "Target of goto is too deeply nested"; |
a0d0e21e | 2672 | |
7918f24d NC |
2673 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2674 | ||
fc36a67e | 2675 | if (ops >= oplimit) |
0157ef98 | 2676 | Perl_croak(aTHX_ "%s", too_deep); |
11343788 MB |
2677 | if (o->op_type == OP_LEAVE || |
2678 | o->op_type == OP_SCOPE || | |
2679 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2680 | o->op_type == OP_LEAVESUB || |
11343788 | 2681 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2682 | { |
5dc0d613 | 2683 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2684 | if (ops >= oplimit) |
0157ef98 | 2685 | Perl_croak(aTHX_ "%s", too_deep); |
fc36a67e | 2686 | } |
c4aa4e48 | 2687 | *ops = 0; |
11343788 | 2688 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2689 | OP *kid; |
a0d0e21e | 2690 | /* First try all the kids at this level, since that's likeliest. */ |
1ed44841 | 2691 | for (kid = cUNOPo->op_first; kid; kid = OP_SIBLING(kid)) { |
7e8f1eac | 2692 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
5db1eb8d BF |
2693 | STRLEN kid_label_len; |
2694 | U32 kid_label_flags; | |
2695 | const char *kid_label = CopLABEL_len_flags(kCOP, | |
2696 | &kid_label_len, &kid_label_flags); | |
2697 | if (kid_label && ( | |
2698 | ( (kid_label_flags & SVf_UTF8) != (flags & SVf_UTF8) ) ? | |
2699 | (flags & SVf_UTF8) | |
2700 | ? (bytes_cmp_utf8( | |
2701 | (const U8*)kid_label, kid_label_len, | |
2702 | (const U8*)label, len) == 0) | |
2703 | : (bytes_cmp_utf8( | |
2704 | (const U8*)label, len, | |
2705 | (const U8*)kid_label, kid_label_len) == 0) | |
eade7155 BF |
2706 | : ( len == kid_label_len && ((kid_label == label) |
2707 | || memEQ(kid_label, label, len))))) | |
7e8f1eac AD |
2708 | return kid; |
2709 | } | |
a0d0e21e | 2710 | } |
1ed44841 | 2711 | for (kid = cUNOPo->op_first; kid; kid = OP_SIBLING(kid)) { |
3280af22 | 2712 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2713 | continue; |
ed8d0fe2 SM |
2714 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2715 | if (ops == opstack) | |
2716 | *ops++ = kid; | |
2717 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2718 | ops[-1]->op_type == OP_DBSTATE) | |
2719 | ops[-1] = kid; | |
2720 | else | |
2721 | *ops++ = kid; | |
2722 | } | |
5db1eb8d | 2723 | if ((o = dofindlabel(kid, label, len, flags, ops, oplimit))) |
11343788 | 2724 | return o; |
a0d0e21e LW |
2725 | } |
2726 | } | |
c4aa4e48 | 2727 | *ops = 0; |
a0d0e21e LW |
2728 | return 0; |
2729 | } | |
2730 | ||
7d1d69cb | 2731 | PP(pp_goto) /* also pp_dump */ |
a0d0e21e | 2732 | { |
27da23d5 | 2733 | dVAR; dSP; |
cbbf8932 | 2734 | OP *retop = NULL; |
a0d0e21e | 2735 | I32 ix; |
eb578fdb | 2736 | PERL_CONTEXT *cx; |
fc36a67e | 2737 | #define GOTO_DEPTH 64 |
2738 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2739 | const char *label = NULL; |
5db1eb8d BF |
2740 | STRLEN label_len = 0; |
2741 | U32 label_flags = 0; | |
bfed75c6 | 2742 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
a1894d81 | 2743 | static const char* const must_have_label = "goto must have label"; |
a0d0e21e | 2744 | |
533c011a | 2745 | if (PL_op->op_flags & OPf_STACKED) { |
7d1d69cb DM |
2746 | /* goto EXPR or goto &foo */ |
2747 | ||
9d4ba2ae | 2748 | SV * const sv = POPs; |
55b37f1c | 2749 | SvGETMAGIC(sv); |
a0d0e21e LW |
2750 | |
2751 | /* This egregious kludge implements goto &subroutine */ | |
2752 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2753 | I32 cxix; | |
eb578fdb | 2754 | PERL_CONTEXT *cx; |
ea726b52 | 2755 | CV *cv = MUTABLE_CV(SvRV(sv)); |
049bd5ff | 2756 | AV *arg = GvAV(PL_defgv); |
a0d0e21e LW |
2757 | I32 oldsave; |
2758 | ||
e8f7dd13 | 2759 | retry: |
4aa0a1f7 | 2760 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2761 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2762 | if (gv) { |
7fc63493 | 2763 | GV *autogv; |
e8f7dd13 GS |
2764 | SV *tmpstr; |
2765 | /* autoloaded stub? */ | |
2766 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2767 | goto retry; | |
c271df94 BF |
2768 | autogv = gv_autoload_pvn(GvSTASH(gv), GvNAME(gv), |
2769 | GvNAMELEN(gv), | |
2770 | GvNAMEUTF8(gv) ? SVf_UTF8 : 0); | |
e8f7dd13 GS |
2771 | if (autogv && (cv = GvCV(autogv))) |
2772 | goto retry; | |
2773 | tmpstr = sv_newmortal(); | |
c445ea15 | 2774 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2775 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2776 | } |
cea2e8a9 | 2777 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2778 | } |
2779 | ||
a0d0e21e | 2780 | /* First do some returnish stuff. */ |
b37c2d43 | 2781 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2782 | FREETMPS; |
a0d0e21e | 2783 | cxix = dopoptosub(cxstack_ix); |
8da3792e S |
2784 | if (cxix < cxstack_ix) { |
2785 | if (cxix < 0) { | |
2786 | SvREFCNT_dec(cv); | |
2787 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); | |
2788 | } | |
a0d0e21e | 2789 | dounwind(cxix); |
8da3792e | 2790 | } |
a0d0e21e | 2791 | TOPBLOCK(cx); |
2d43a17f | 2792 | SPAGAIN; |
564abe23 | 2793 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2794 | if (CxTYPE(cx) == CXt_EVAL) { |
110af908 | 2795 | SvREFCNT_dec(cv); |
c74ace89 | 2796 | if (CxREALEVAL(cx)) |
00455a92 | 2797 | /* diag_listed_as: Can't goto subroutine from an eval-%s */ |
c74ace89 DM |
2798 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); |
2799 | else | |
00455a92 | 2800 | /* diag_listed_as: Can't goto subroutine from an eval-%s */ |
c74ace89 | 2801 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); |
2d43a17f | 2802 | } |
9850bf21 | 2803 | else if (CxMULTICALL(cx)) |
110af908 FC |
2804 | { |
2805 | SvREFCNT_dec(cv); | |
9850bf21 | 2806 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); |
110af908 | 2807 | } |
bafb2adc | 2808 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
a0d0e21e | 2809 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2810 | |
049bd5ff FC |
2811 | /* abandon the original @_ if it got reified or if it is |
2812 | the same as the current @_ */ | |
2813 | if (AvREAL(av) || av == arg) { | |
b1464ded | 2814 | SvREFCNT_dec(av); |
d8b46c1b | 2815 | av = newAV(); |
11ca45c0 | 2816 | AvREIFY_only(av); |
ad64d0ec | 2817 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2818 | } |
049bd5ff | 2819 | else CLEAR_ARGARRAY(av); |
a0d0e21e | 2820 | } |
049bd5ff FC |
2821 | /* We donate this refcount later to the callee’s pad. */ |
2822 | SvREFCNT_inc_simple_void(arg); | |
6b35e009 | 2823 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2824 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2825 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2826 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2827 | LEAVE_SCOPE(oldsave); |
2828 | ||
1d59c038 FC |
2829 | /* A destructor called during LEAVE_SCOPE could have undefined |
2830 | * our precious cv. See bug #99850. */ | |
2831 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
2832 | const GV * const gv = CvGV(cv); | |
049bd5ff | 2833 | SvREFCNT_dec(arg); |
1d59c038 FC |
2834 | if (gv) { |
2835 | SV * const tmpstr = sv_newmortal(); | |
2836 | gv_efullname3(tmpstr, gv, NULL); | |
2837 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", | |
2838 | SVfARG(tmpstr)); | |
2839 | } | |
2840 | DIE(aTHX_ "Goto undefined subroutine"); | |
2841 | } | |
2842 | ||
a0d0e21e LW |
2843 | /* Now do some callish stuff. */ |
2844 | SAVETMPS; | |
5023d17a | 2845 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2846 | if (CvISXSUB(cv)) { |
b37c2d43 | 2847 | OP* const retop = cx->blk_sub.retop; |
cb65b687 DM |
2848 | SV **newsp; |
2849 | I32 gimme; | |
ad39f3a2 | 2850 | const SSize_t items = arg ? AvFILL(arg) + 1 : 0; |
cd313eb4 | 2851 | const bool m = arg ? cBOOL(SvRMAGICAL(arg)) : 0; |
049bd5ff FC |
2852 | SV** mark; |
2853 | ||
cb65b687 DM |
2854 | PERL_UNUSED_VAR(newsp); |
2855 | PERL_UNUSED_VAR(gimme); | |
2856 | ||
049bd5ff | 2857 | /* put GvAV(defgv) back onto stack */ |
8c9d3376 FC |
2858 | if (items) { |
2859 | EXTEND(SP, items+1); /* @_ could have been extended. */ | |
8c9d3376 | 2860 | } |
049bd5ff | 2861 | mark = SP; |
ad39f3a2 | 2862 | if (items) { |
de935cc9 | 2863 | SSize_t index; |
ad39f3a2 | 2864 | bool r = cBOOL(AvREAL(arg)); |
b1464ded | 2865 | for (index=0; index<items; index++) |
ad39f3a2 FC |
2866 | { |
2867 | SV *sv; | |
2868 | if (m) { | |
2869 | SV ** const svp = av_fetch(arg, index, 0); | |
2870 | sv = svp ? *svp : NULL; | |
dd2a7f90 | 2871 | } |
ad39f3a2 FC |
2872 | else sv = AvARRAY(arg)[index]; |
2873 | SP[index+1] = sv | |
2874 | ? r ? SvREFCNT_inc_NN(sv_2mortal(sv)) : sv | |
2875 | : sv_2mortal(newSVavdefelem(arg, index, 1)); | |
2876 | } | |
049bd5ff | 2877 | } |
ad39f3a2 | 2878 | SP += items; |
049bd5ff FC |
2879 | SvREFCNT_dec(arg); |
2880 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { | |
2881 | /* Restore old @_ */ | |
2882 | arg = GvAV(PL_defgv); | |
2883 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
2884 | SvREFCNT_dec(arg); | |
b1464ded | 2885 | } |
1fa4e549 | 2886 | |
b37c2d43 AL |
2887 | /* XS subs don't have a CxSUB, so pop it */ |
2888 | POPBLOCK(cx, PL_curpm); | |
2889 | /* Push a mark for the start of arglist */ | |
2890 | PUSHMARK(mark); | |
2891 | PUTBACK; | |
2892 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2893 | LEAVE; |
47c9d59f | 2894 | PERL_ASYNC_CHECK(); |
5eff7df7 | 2895 | return retop; |
a0d0e21e LW |
2896 | } |
2897 | else { | |
b70d5558 | 2898 | PADLIST * const padlist = CvPADLIST(cv); |
a0d0e21e | 2899 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2900 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2901 | |
a0d0e21e LW |
2902 | CvDEPTH(cv)++; |
2903 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2904 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2905 | else { |
2b9dff67 | 2906 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2907 | sub_crush_depth(cv); |
26019298 | 2908 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2909 | } |
426a09cd | 2910 | PL_curcop = cx->blk_oldcop; |
fd617465 DM |
2911 | SAVECOMPPAD(); |
2912 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2913 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2914 | { |
dd2155a4 | 2915 | CX_CURPAD_SAVE(cx->blk_sub); |
a0d0e21e | 2916 | |
049bd5ff FC |
2917 | /* cx->blk_sub.argarray has no reference count, so we |
2918 | need something to hang on to our argument array so | |
2919 | that cx->blk_sub.argarray does not end up pointing | |
2920 | to freed memory as the result of undef *_. So put | |
2921 | it in the callee’s pad, donating our refer- | |
2922 | ence count. */ | |
bfa371b6 FC |
2923 | if (arg) { |
2924 | SvREFCNT_dec(PAD_SVl(0)); | |
2925 | PAD_SVl(0) = (SV *)(cx->blk_sub.argarray = arg); | |
2926 | } | |
049bd5ff FC |
2927 | |
2928 | /* GvAV(PL_defgv) might have been modified on scope | |
2929 | exit, so restore it. */ | |
2930 | if (arg != GvAV(PL_defgv)) { | |
2931 | AV * const av = GvAV(PL_defgv); | |
2932 | GvAV(PL_defgv) = (AV *)SvREFCNT_inc_simple(arg); | |
2933 | SvREFCNT_dec(av); | |
a0d0e21e LW |
2934 | } |
2935 | } | |
049bd5ff | 2936 | else SvREFCNT_dec(arg); |
491527d0 | 2937 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2938 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2939 | if (PERLDB_GOTO) { |
b96d8cd9 | 2940 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2941 | if (gotocv) { |
2942 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2943 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2944 | PL_stack_sp--; |
2945 | } | |
491527d0 | 2946 | } |
1ce6579f | 2947 | } |
47c9d59f | 2948 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
2949 | RETURNOP(CvSTART(cv)); |
2950 | } | |
2951 | } | |
1614b0e3 | 2952 | else { |
7d1d69cb | 2953 | /* goto EXPR */ |
55b37f1c | 2954 | label = SvPV_nomg_const(sv, label_len); |
5db1eb8d | 2955 | label_flags = SvUTF8(sv); |
1614b0e3 | 2956 | } |
a0d0e21e | 2957 | } |
2fc690dc | 2958 | else if (!(PL_op->op_flags & OPf_SPECIAL)) { |
7d1d69cb | 2959 | /* goto LABEL or dump LABEL */ |
5db1eb8d BF |
2960 | label = cPVOP->op_pv; |
2961 | label_flags = (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0; | |
2962 | label_len = strlen(label); | |
2963 | } | |
0157ef98 | 2964 | if (!(do_dump || label_len)) DIE(aTHX_ "%s", must_have_label); |
a0d0e21e | 2965 | |
f410a211 NC |
2966 | PERL_ASYNC_CHECK(); |
2967 | ||
3532f34a | 2968 | if (label_len) { |
cbbf8932 | 2969 | OP *gotoprobe = NULL; |
3b2447bc | 2970 | bool leaving_eval = FALSE; |
33d34e4c | 2971 | bool in_block = FALSE; |
cbbf8932 | 2972 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2973 | |
2974 | /* find label */ | |
2975 | ||
d4c19fe8 | 2976 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2977 | *enterops = 0; |
2978 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2979 | cx = &cxstack[ix]; | |
6b35e009 | 2980 | switch (CxTYPE(cx)) { |
a0d0e21e | 2981 | case CXt_EVAL: |
3b2447bc | 2982 | leaving_eval = TRUE; |
971ecbe6 | 2983 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2984 | gotoprobe = (last_eval_cx ? |
2985 | last_eval_cx->blk_eval.old_eval_root : | |
2986 | PL_eval_root); | |
2987 | last_eval_cx = cx; | |
9c5794fe RH |
2988 | break; |
2989 | } | |
2990 | /* else fall through */ | |
c6fdafd0 | 2991 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2992 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2993 | case CXt_LOOP_FOR: |
2994 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2995 | case CXt_GIVEN: |
2996 | case CXt_WHEN: | |
1ed44841 | 2997 | gotoprobe = OP_SIBLING(cx->blk_oldcop); |
a0d0e21e LW |
2998 | break; |
2999 | case CXt_SUBST: | |
3000 | continue; | |
3001 | case CXt_BLOCK: | |
33d34e4c | 3002 | if (ix) { |
1ed44841 | 3003 | gotoprobe = OP_SIBLING(cx->blk_oldcop); |
33d34e4c AE |
3004 | in_block = TRUE; |
3005 | } else | |
3280af22 | 3006 | gotoprobe = PL_main_root; |
a0d0e21e | 3007 | break; |
b3933176 | 3008 | case CXt_SUB: |
9850bf21 | 3009 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
3010 | gotoprobe = CvROOT(cx->blk_sub.cv); |
3011 | break; | |
3012 | } | |
924ba076 | 3013 | /* FALLTHROUGH */ |
7766f137 | 3014 | case CXt_FORMAT: |
0a753a76 | 3015 | case CXt_NULL: |
a651a37d | 3016 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
3017 | default: |
3018 | if (ix) | |
5637ef5b NC |
3019 | DIE(aTHX_ "panic: goto, type=%u, ix=%ld", |
3020 | CxTYPE(cx), (long) ix); | |
3280af22 | 3021 | gotoprobe = PL_main_root; |
a0d0e21e LW |
3022 | break; |
3023 | } | |
2b597662 | 3024 | if (gotoprobe) { |
29e61fd9 DM |
3025 | OP *sibl1, *sibl2; |
3026 | ||
5db1eb8d | 3027 | retop = dofindlabel(gotoprobe, label, label_len, label_flags, |
2b597662 GS |
3028 | enterops, enterops + GOTO_DEPTH); |
3029 | if (retop) | |
3030 | break; | |
29e61fd9 DM |
3031 | if ( (sibl1 = OP_SIBLING(gotoprobe)) && |
3032 | sibl1->op_type == OP_UNSTACK && | |
3033 | (sibl2 = OP_SIBLING(sibl1))) | |
3034 | { | |
3035 | retop = dofindlabel(sibl2, | |
5db1eb8d BF |
3036 | label, label_len, label_flags, enterops, |
3037 | enterops + GOTO_DEPTH); | |
eae48c89 Z |
3038 | if (retop) |
3039 | break; | |
3040 | } | |
2b597662 | 3041 | } |
3280af22 | 3042 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
3043 | } |
3044 | if (!retop) | |
b17a0679 FC |
3045 | DIE(aTHX_ "Can't find label %"UTF8f, |
3046 | UTF8fARG(label_flags, label_len, label)); | |
a0d0e21e | 3047 | |
3b2447bc RH |
3048 | /* if we're leaving an eval, check before we pop any frames |
3049 | that we're not going to punt, otherwise the error | |
3050 | won't be caught */ | |
3051 | ||
3052 | if (leaving_eval && *enterops && enterops[1]) { | |
3053 | I32 i; | |
3054 | for (i = 1; enterops[i]; i++) | |
3055 | if (enterops[i]->op_type == OP_ENTERITER) | |
3056 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
3057 | } | |
3058 | ||
b500e03b GG |
3059 | if (*enterops && enterops[1]) { |
3060 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
3061 | if (enterops[i]) | |
3062 | deprecate("\"goto\" to jump into a construct"); | |
3063 | } | |
3064 | ||
a0d0e21e LW |
3065 | /* pop unwanted frames */ |
3066 | ||
3067 | if (ix < cxstack_ix) { | |
3068 | I32 oldsave; | |
3069 | ||
3070 | if (ix < 0) | |
5edb7975 | 3071 | DIE(aTHX_ "panic: docatch: illegal ix=%ld", (long)ix); |
a0d0e21e LW |
3072 | dounwind(ix); |
3073 | TOPBLOCK(cx); | |
3280af22 | 3074 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
3075 | LEAVE_SCOPE(oldsave); |
3076 | } | |
3077 | ||
3078 | /* push wanted frames */ | |
3079 | ||
748a9306 | 3080 | if (*enterops && enterops[1]) { |
0bd48802 | 3081 | OP * const oldop = PL_op; |
33d34e4c AE |
3082 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
3083 | for (; enterops[ix]; ix++) { | |
533c011a | 3084 | PL_op = enterops[ix]; |
84902520 TB |
3085 | /* Eventually we may want to stack the needed arguments |
3086 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 3087 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 3088 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 3089 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 3090 | } |
533c011a | 3091 | PL_op = oldop; |
a0d0e21e LW |
3092 | } |
3093 | } | |
3094 | ||
3095 | if (do_dump) { | |
a5f75d66 | 3096 | #ifdef VMS |
6b88bc9c | 3097 | if (!retop) retop = PL_main_start; |
a5f75d66 | 3098 | #endif |
3280af22 NIS |
3099 | PL_restartop = retop; |
3100 | PL_do_undump = TRUE; | |
a0d0e21e LW |
3101 | |
3102 | my_unexec(); | |
3103 | ||
3280af22 NIS |
3104 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
3105 | PL_do_undump = FALSE; | |
a0d0e21e LW |
3106 | } |
3107 | ||
47c9d59f | 3108 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
3109 | RETURNOP(retop); |
3110 | } | |
3111 | ||
3112 | PP(pp_exit) | |
3113 | { | |
39644a26 | 3114 | dSP; |
a0d0e21e LW |
3115 | I32 anum; |
3116 | ||
3117 | if (MAXARG < 1) | |
3118 | anum = 0; | |
9d3c658e FC |
3119 | else if (!TOPs) { |
3120 | anum = 0; (void)POPs; | |
3121 | } | |
ff0cee69 | 3122 | else { |
a0d0e21e | 3123 | anum = SvIVx(POPs); |
d98f61e7 | 3124 | #ifdef VMS |
5450b4d8 FC |
3125 | if (anum == 1 |
3126 | && SvTRUE(cop_hints_fetch_pvs(PL_curcop, "vmsish_exit", 0))) | |
ff0cee69 | 3127 | anum = 0; |
97124ef6 FC |
3128 | VMSISH_HUSHED = |
3129 | VMSISH_HUSHED || (PL_curcop->op_private & OPpHUSH_VMSISH); | |
ff0cee69 | 3130 | #endif |
3131 | } | |
cc3604b1 | 3132 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
a0d0e21e | 3133 | my_exit(anum); |
3280af22 | 3134 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
3135 | RETURN; |
3136 | } | |
3137 | ||
a0d0e21e LW |
3138 | /* Eval. */ |
3139 | ||
0824fdcb | 3140 | STATIC void |
cea2e8a9 | 3141 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 3142 | { |
504618e9 | 3143 | const char *s = SvPVX_const(sv); |
890ce7af | 3144 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 3145 | I32 line = 1; |
a0d0e21e | 3146 | |
7918f24d NC |
3147 | PERL_ARGS_ASSERT_SAVE_LINES; |
3148 | ||
a0d0e21e | 3149 | while (s && s < send) { |
f54cb97a | 3150 | const char *t; |
b9f83d2f | 3151 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 3152 | |
1d963ff3 | 3153 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
3154 | if (t) |
3155 | t++; | |
3156 | else | |
3157 | t = send; | |
3158 | ||
3159 | sv_setpvn(tmpstr, s, t - s); | |
3160 | av_store(array, line++, tmpstr); | |
3161 | s = t; | |
3162 | } | |
3163 | } | |
3164 | ||
22f16304 RU |
3165 | /* |
3166 | =for apidoc docatch | |
3167 | ||
3168 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
3169 | ||
3170 | 0 is used as continue inside eval, | |
3171 | ||
3172 | 3 is used for a die caught by an inner eval - continue inner loop | |
3173 | ||
3174 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
3175 | establish a local jmpenv to handle exception traps. | |
3176 | ||
3177 | =cut | |
3178 | */ | |
0824fdcb | 3179 | STATIC OP * |
cea2e8a9 | 3180 | S_docatch(pTHX_ OP *o) |
1e422769 | 3181 | { |
6224f72b | 3182 | int ret; |
06b5626a | 3183 | OP * const oldop = PL_op; |
db36c5a1 | 3184 | dJMPENV; |
1e422769 | 3185 | |
1e422769 | 3186 | #ifdef DEBUGGING |
54310121 | 3187 | assert(CATCH_GET == TRUE); |
1e422769 | 3188 | #endif |
312caa8e | 3189 | PL_op = o; |
8bffa5f8 | 3190 | |
14dd3ad8 | 3191 | JMPENV_PUSH(ret); |
6224f72b | 3192 | switch (ret) { |
312caa8e | 3193 | case 0: |
abd70938 DM |
3194 | assert(cxstack_ix >= 0); |
3195 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3196 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 3197 | redo_body: |
85aaa934 | 3198 | CALLRUNOPS(aTHX); |
312caa8e CS |
3199 | break; |
3200 | case 3: | |
8bffa5f8 | 3201 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
3202 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
3203 | PL_restartjmpenv = NULL; | |
312caa8e CS |
3204 | PL_op = PL_restartop; |
3205 | PL_restartop = 0; | |
3206 | goto redo_body; | |
3207 | } | |
924ba076 | 3208 | /* FALLTHROUGH */ |
312caa8e | 3209 | default: |
14dd3ad8 | 3210 | JMPENV_POP; |
533c011a | 3211 | PL_op = oldop; |
6224f72b | 3212 | JMPENV_JUMP(ret); |
a25b5927 | 3213 | assert(0); /* NOTREACHED */ |
1e422769 | 3214 | } |
14dd3ad8 | 3215 | JMPENV_POP; |
533c011a | 3216 | PL_op = oldop; |
5f66b61c | 3217 | return NULL; |
1e422769 | 3218 | } |
3219 | ||
a3985cdc DM |
3220 | |
3221 | /* | |
3222 | =for apidoc find_runcv | |
3223 | ||
3224 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3225 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3226 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
72d33970 FC |
3227 | entered. (This allows debuggers to eval in the scope of the breakpoint |
3228 | rather than in the scope of the debugger itself.) | |
a3985cdc DM |
3229 | |
3230 | =cut | |
3231 | */ | |
3232 | ||
3233 | CV* | |
d819b83a | 3234 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3235 | { |
db4cf31d | 3236 | return Perl_find_runcv_where(aTHX_ 0, 0, db_seqp); |
70794f7b FC |
3237 | } |
3238 | ||
3239 | /* If this becomes part of the API, it might need a better name. */ | |
3240 | CV * | |
db4cf31d | 3241 | Perl_find_runcv_where(pTHX_ U8 cond, IV arg, U32 *db_seqp) |
70794f7b | 3242 | { |
a3985cdc | 3243 | PERL_SI *si; |
b4b0692a | 3244 | int level = 0; |
a3985cdc | 3245 | |
d819b83a | 3246 | if (db_seqp) |
c3923c33 DM |
3247 | *db_seqp = |
3248 | PL_curcop == &PL_compiling | |
3249 | ? PL_cop_seqmax | |
3250 | : PL_curcop->cop_seq; | |
3251 | ||
a3985cdc | 3252 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3253 | I32 ix; |
a3985cdc | 3254 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3255 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
70794f7b | 3256 | CV *cv = NULL; |
d819b83a | 3257 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
70794f7b | 3258 | cv = cx->blk_sub.cv; |
d819b83a DM |
3259 | /* skip DB:: code */ |
3260 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3261 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3262 | continue; | |
3263 | } | |
a453e28a DM |
3264 | if (cx->cx_type & CXp_SUB_RE) |
3265 | continue; | |
d819b83a | 3266 | } |
a3985cdc | 3267 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
70794f7b FC |
3268 | cv = cx->blk_eval.cv; |
3269 | if (cv) { | |
3270 | switch (cond) { | |
db4cf31d FC |
3271 | case FIND_RUNCV_padid_eq: |
3272 | if (!CvPADLIST(cv) | |
a56015b9 | 3273 | || PadlistNAMES(CvPADLIST(cv)) != INT2PTR(PADNAMELIST *, arg)) |
8771da69 | 3274 | continue; |
b4b0692a FC |
3275 | return cv; |
3276 | case FIND_RUNCV_level_eq: | |
db4cf31d | 3277 | if (level++ != arg) continue; |
70794f7b FC |
3278 | /* GERONIMO! */ |
3279 | default: | |
3280 | return cv; | |
3281 | } | |
3282 | } | |
a3985cdc DM |
3283 | } |
3284 | } | |
db4cf31d | 3285 | return cond == FIND_RUNCV_padid_eq ? NULL : PL_main_cv; |
a3985cdc DM |
3286 | } |
3287 | ||
3288 | ||
27e90453 DM |
3289 | /* Run yyparse() in a setjmp wrapper. Returns: |
3290 | * 0: yyparse() successful | |
3291 | * 1: yyparse() failed | |
3292 | * 3: yyparse() died | |
3293 | */ | |
3294 | STATIC int | |
28ac2b49 | 3295 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3296 | { |
3297 | int ret; | |
3298 | dJMPENV; | |
3299 | ||
3300 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3301 | JMPENV_PUSH(ret); | |
3302 | switch (ret) { | |
3303 | case 0: | |
28ac2b49 | 3304 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3305 | break; |
3306 | case 3: | |
3307 | break; | |
3308 | default: | |
3309 | JMPENV_POP; | |
3310 | JMPENV_JUMP(ret); | |
a25b5927 | 3311 | assert(0); /* NOTREACHED */ |
27e90453 DM |
3312 | } |
3313 | JMPENV_POP; | |
3314 | return ret; | |
3315 | } | |
3316 | ||
3317 | ||
104a8185 DM |
3318 | /* Compile a require/do or an eval ''. |
3319 | * | |
a3985cdc | 3320 | * outside is the lexically enclosing CV (if any) that invoked us. |
104a8185 DM |
3321 | * seq is the current COP scope value. |
3322 | * hh is the saved hints hash, if any. | |
3323 | * | |
410be5db | 3324 | * Returns a bool indicating whether the compile was successful; if so, |
104a8185 DM |
3325 | * PL_eval_start contains the first op of the compiled code; otherwise, |
3326 | * pushes undef. | |
3327 | * | |
3328 | * This function is called from two places: pp_require and pp_entereval. | |
3329 | * These can be distinguished by whether PL_op is entereval. | |
7d116edc FC |
3330 | */ |
3331 | ||
410be5db | 3332 | STATIC bool |
104a8185 | 3333 | S_doeval(pTHX_ int gimme, CV* outside, U32 seq, HV *hh) |
a0d0e21e | 3334 | { |
20b7effb | 3335 | dSP; |
46c461b5 | 3336 | OP * const saveop = PL_op; |
104a8185 | 3337 | bool clear_hints = saveop->op_type != OP_ENTEREVAL; |
f45b078d | 3338 | COP * const oldcurcop = PL_curcop; |
26c9400e | 3339 | bool in_require = (saveop->op_type == OP_REQUIRE); |
27e90453 | 3340 | int yystatus; |
676a678a | 3341 | CV *evalcv; |
a0d0e21e | 3342 | |
27e90453 | 3343 | PL_in_eval = (in_require |
6dc8a9e4 | 3344 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
a1941760 DM |
3345 | : (EVAL_INEVAL | |
3346 | ((PL_op->op_private & OPpEVAL_RE_REPARSING) | |
3347 | ? EVAL_RE_REPARSING : 0))); | |
a0d0e21e | 3348 | |
1ce6579f | 3349 | PUSHMARK(SP); |
3350 | ||
676a678a Z |
3351 | evalcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
3352 | CvEVAL_on(evalcv); | |
2090ab20 | 3353 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
676a678a | 3354 | cxstack[cxstack_ix].blk_eval.cv = evalcv; |
86a64801 | 3355 | cxstack[cxstack_ix].blk_gimme = gimme; |
2090ab20 | 3356 | |
676a678a Z |
3357 | CvOUTSIDE_SEQ(evalcv) = seq; |
3358 | CvOUTSIDE(evalcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); | |
a3985cdc | 3359 | |
dd2155a4 | 3360 | /* set up a scratch pad */ |
a0d0e21e | 3361 | |
676a678a | 3362 | CvPADLIST(evalcv) = pad_new(padnew_SAVE); |
cecbe010 | 3363 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3364 | |
07055b4c | 3365 | |
b5bbe64a | 3366 | SAVEMORTALIZESV(evalcv); /* must remain until end of current statement */ |
748a9306 | 3367 | |
a0d0e21e LW |
3368 | /* make sure we compile in the right package */ |
3369 | ||
ed094faf | 3370 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
03d9f026 | 3371 | SAVEGENERICSV(PL_curstash); |
cb1ad50e FC |
3372 | PL_curstash = (HV *)CopSTASH(PL_curcop); |
3373 | if (SvTYPE(PL_curstash) != SVt_PVHV) PL_curstash = NULL; | |
3374 | else SvREFCNT_inc_simple_void(PL_curstash); | |
a0d0e21e | 3375 | } |
3c10abe3 | 3376 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3377 | SAVESPTR(PL_beginav); |
3378 | PL_beginav = newAV(); | |
3379 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3380 | SAVESPTR(PL_unitcheckav); |
3381 | PL_unitcheckav = newAV(); | |
3382 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3383 | |
81d86705 | 3384 | |
104a8185 | 3385 | ENTER_with_name("evalcomp"); |
676a678a Z |
3386 | SAVESPTR(PL_compcv); |
3387 | PL_compcv = evalcv; | |
3388 | ||
a0d0e21e LW |
3389 | /* try to compile it */ |
3390 | ||
5f66b61c | 3391 | PL_eval_root = NULL; |
3280af22 | 3392 | PL_curcop = &PL_compiling; |
26c9400e | 3393 | if ((saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3394 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3395 | else |
3396 | CLEAR_ERRSV(); | |
27e90453 | 3397 | |
377b5421 DM |
3398 | SAVEHINTS(); |
3399 | if (clear_hints) { | |
3400 | PL_hints = 0; | |
3401 | hv_clear(GvHV(PL_hintgv)); | |
3402 | } | |
3403 | else { | |
3404 | PL_hints = saveop->op_private & OPpEVAL_COPHH | |
3405 | ? oldcurcop->cop_hints : saveop->op_targ; | |
4f3e2518 DM |
3406 | |
3407 | /* making 'use re eval' not be in scope when compiling the | |
3408 | * qr/mabye_has_runtime_code_block/ ensures that we don't get | |
3409 | * infinite recursion when S_has_runtime_code() gives a false | |
3410 | * positive: the second time round, HINT_RE_EVAL isn't set so we | |
3411 | * don't bother calling S_has_runtime_code() */ | |
3412 | if (PL_in_eval & EVAL_RE_REPARSING) | |
3413 | PL_hints &= ~HINT_RE_EVAL; | |
3414 | ||
377b5421 DM |
3415 | if (hh) { |
3416 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3417 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
3418 | GvHV(PL_hintgv) = hh; | |
3419 | } | |
3420 | } | |
3421 | SAVECOMPILEWARNINGS(); | |
3422 | if (clear_hints) { | |
3423 | if (PL_dowarn & G_WARN_ALL_ON) | |
3424 | PL_compiling.cop_warnings = pWARN_ALL ; | |
3425 | else if (PL_dowarn & G_WARN_ALL_OFF) | |
3426 | PL_compiling.cop_warnings = pWARN_NONE ; | |
3427 | else | |
3428 | PL_compiling.cop_warnings = pWARN_STD ; | |
3429 | } | |
3430 | else { | |
3431 | PL_compiling.cop_warnings = | |
3432 | DUP_WARNINGS(oldcurcop->cop_warnings); | |
3433 | cophh_free(CopHINTHASH_get(&PL_compiling)); | |
3434 | if (Perl_cop_fetch_label(aTHX_ oldcurcop, NULL, NULL)) { | |
3435 | /* The label, if present, is the first entry on the chain. So rather | |
3436 | than writing a blank label in front of it (which involves an | |
3437 | allocation), just use the next entry in the chain. */ | |
3438 | PL_compiling.cop_hints_hash | |
3439 | = cophh_copy(oldcurcop->cop_hints_hash->refcounted_he_next); | |
3440 | /* Check the assumption that this removed the label. */ | |
3441 | assert(Perl_cop_fetch_label(aTHX_ &PL_compiling, NULL, NULL) == NULL); | |
f45b078d | 3442 | } |
377b5421 DM |
3443 | else |
3444 | PL_compiling.cop_hints_hash = cophh_copy(oldcurcop->cop_hints_hash); | |
3445 | } | |
f45b078d | 3446 | |
a88d97bf | 3447 | CALL_BLOCK_HOOKS(bhk_eval, saveop); |
52db365a | 3448 | |
27e90453 DM |
3449 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3450 | * so honour CATCH_GET and trap it here if necessary */ | |
3451 | ||
28ac2b49 | 3452 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3453 | |
3454 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3455 | SV **newsp; /* Used by POPBLOCK. */ |
d164302a | 3456 | PERL_CONTEXT *cx; |
27e90453 | 3457 | I32 optype; /* Used by POPEVAL. */ |
d164302a | 3458 | SV *namesv; |
eed484f9 | 3459 | SV *errsv = NULL; |
bfed75c6 | 3460 | |
d164302a GG |
3461 | cx = NULL; |
3462 | namesv = NULL; | |
27e90453 DM |
3463 | PERL_UNUSED_VAR(newsp); |
3464 | PERL_UNUSED_VAR(optype); | |
3465 | ||
c86ffc32 DM |
3466 | /* note that if yystatus == 3, then the EVAL CX block has already |
3467 | * been popped, and various vars restored */ | |
533c011a | 3468 | PL_op = saveop; |
27e90453 | 3469 | if (yystatus != 3) { |
c86ffc32 DM |
3470 | if (PL_eval_root) { |
3471 | op_free(PL_eval_root); | |
3472 | PL_eval_root = NULL; | |
3473 | } | |
27e90453 | 3474 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
377b5421 DM |
3475 | POPBLOCK(cx,PL_curpm); |
3476 | POPEVAL(cx); | |
3477 | namesv = cx->blk_eval.old_namesv; | |
bbde7ba3 | 3478 | /* POPBLOCK renders LEAVE_with_name("evalcomp") unnecessary. */ |
27e90453 | 3479 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ |
cd6472fc | 3480 | } |
9d4ba2ae | 3481 | |
eed484f9 | 3482 | errsv = ERRSV; |
27e90453 | 3483 | if (in_require) { |
b6494f15 VP |
3484 | if (!cx) { |
3485 | /* If cx is still NULL, it means that we didn't go in the | |
3486 | * POPEVAL branch. */ | |
3487 | cx = &cxstack[cxstack_ix]; | |
3488 | assert(CxTYPE(cx) == CXt_EVAL); | |
3489 | namesv = cx->blk_eval.old_namesv; | |
3490 | } | |
3491 | (void)hv_store(GvHVn(PL_incgv), | |
ecad31f0 | 3492 | SvPVX_const(namesv), |
c60dbbc3 | 3493 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 | 3494 | &PL_sv_undef, 0); |
ecad31f0 | 3495 | Perl_croak(aTHX_ "%"SVf"Compilation failed in require", |
eed484f9 DD |
3496 | SVfARG(errsv |
3497 | ? errsv | |
ecad31f0 | 3498 | : newSVpvs_flags("Unknown error\n", SVs_TEMP))); |
5a844595 | 3499 | } |
9d7f88dd | 3500 | else { |
eed484f9 DD |
3501 | if (!*(SvPV_nolen_const(errsv))) { |
3502 | sv_setpvs(errsv, "Compilation error"); | |
9d7f88dd SR |
3503 | } |
3504 | } | |
2bf54cc6 | 3505 | if (gimme != G_ARRAY) PUSHs(&PL_sv_undef); |
410be5db DM |
3506 | PUTBACK; |
3507 | return FALSE; | |
a0d0e21e | 3508 | } |
104a8185 DM |
3509 | else |
3510 | LEAVE_with_name("evalcomp"); | |
3511 | ||
57843af0 | 3512 | CopLINE_set(&PL_compiling, 0); |
104a8185 | 3513 | SAVEFREEOP(PL_eval_root); |
8be227ab | 3514 | cv_forget_slab(evalcv); |
0c58d367 | 3515 | |
a0d0e21e LW |
3516 | DEBUG_x(dump_eval()); |
3517 | ||
55497cff | 3518 | /* Register with debugger: */ |
26c9400e | 3519 | if (PERLDB_INTER && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3520 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3521 | if (cv) { |
3522 | dSP; | |
924508f0 | 3523 | PUSHMARK(SP); |
ad64d0ec | 3524 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3525 | PUTBACK; |
ad64d0ec | 3526 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3527 | } |
3528 | } | |
3529 | ||
8ed49485 FC |
3530 | if (PL_unitcheckav) { |
3531 | OP *es = PL_eval_start; | |
3c10abe3 | 3532 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3533 | PL_eval_start = es; |
3534 | } | |
3c10abe3 | 3535 | |
a0d0e21e LW |
3536 | /* compiled okay, so do it */ |
3537 | ||
676a678a | 3538 | CvDEPTH(evalcv) = 1; |
3280af22 | 3539 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
533c011a | 3540 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3541 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3542 | |
410be5db DM |
3543 | PUTBACK; |
3544 | return TRUE; | |
a0d0e21e LW |
3545 | } |
3546 | ||
a6c40364 | 3547 | STATIC PerlIO * |
282b29ee | 3548 | S_check_type_and_open(pTHX_ SV *name) |
ce8abf5f SP |
3549 | { |
3550 | Stat_t st; | |
41188aa0 TC |
3551 | STRLEN len; |
3552 | const char *p = SvPV_const(name, len); | |
c8028aa6 | 3553 | int st_rc; |
df528165 | 3554 | |
7918f24d NC |
3555 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3556 | ||
c8028aa6 TC |
3557 | /* checking here captures a reasonable error message when |
3558 | * PERL_DISABLE_PMC is true, but when PMC checks are enabled, the | |
3559 | * user gets a confusing message about looking for the .pmc file | |
3560 | * rather than for the .pm file. | |
3561 | * This check prevents a \0 in @INC causing problems. | |
3562 | */ | |
41188aa0 | 3563 | if (!IS_SAFE_PATHNAME(p, len, "require")) |
c8028aa6 TC |
3564 | return NULL; |
3565 | ||
b2da7ead DM |
3566 | /* we use the value of errno later to see how stat() or open() failed. |
3567 | * We don't want it set if the stat succeeded but we still failed, | |
3568 | * such as if the name exists, but is a directory */ | |
3569 | errno = 0; | |
3570 | ||
c8028aa6 TC |
3571 | st_rc = PerlLIO_stat(p, &st); |
3572 | ||
6b845e56 | 3573 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3574 | return NULL; |
ce8abf5f SP |
3575 | } |
3576 | ||
97cb92d6 | 3577 | #if !defined(PERLIO_IS_STDIO) |
639dfab0 | 3578 | return PerlIO_openn(aTHX_ ":", PERL_SCRIPT_MODE, -1, 0, 0, NULL, 1, &name); |
ccb84406 | 3579 | #else |
282b29ee | 3580 | return PerlIO_open(p, PERL_SCRIPT_MODE); |
ccb84406 | 3581 | #endif |
ce8abf5f SP |
3582 | } |
3583 | ||
75c20bac | 3584 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3585 | STATIC PerlIO * |
282b29ee | 3586 | S_doopen_pm(pTHX_ SV *name) |
b295d113 | 3587 | { |
282b29ee NC |
3588 | STRLEN namelen; |
3589 | const char *p = SvPV_const(name, namelen); | |
b295d113 | 3590 | |
7918f24d NC |
3591 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3592 | ||
c8028aa6 TC |
3593 | /* check the name before trying for the .pmc name to avoid the |
3594 | * warning referring to the .pmc which the user probably doesn't | |
3595 | * know or care about | |
3596 | */ | |
41188aa0 | 3597 | if (!IS_SAFE_PATHNAME(p, namelen, "require")) |
c8028aa6 TC |
3598 | return NULL; |
3599 | ||
282b29ee | 3600 | if (namelen > 3 && memEQs(p + namelen - 3, 3, ".pm")) { |
eb70bb4a | 3601 | SV *const pmcsv = sv_newmortal(); |
a6c40364 | 3602 | Stat_t pmcstat; |
50b8ed39 | 3603 | |
eb70bb4a | 3604 | SvSetSV_nosteal(pmcsv,name); |
46e2868e | 3605 | sv_catpvs(pmcsv, "c"); |
50b8ed39 | 3606 | |
282b29ee NC |
3607 | if (PerlLIO_stat(SvPV_nolen_const(pmcsv), &pmcstat) >= 0) |
3608 | return check_type_and_open(pmcsv); | |
a6c40364 | 3609 | } |
282b29ee | 3610 | return check_type_and_open(name); |
75c20bac | 3611 | } |
7925835c | 3612 | #else |
282b29ee | 3613 | # define doopen_pm(name) check_type_and_open(name) |
7925835c | 3614 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3615 | |
511712dc TC |
3616 | /* require doesn't search for absolute names, or when the name is |
3617 | explicity relative the current directory */ | |
3618 | PERL_STATIC_INLINE bool | |
3619 | S_path_is_searchable(const char *name) | |
3620 | { | |
3621 | PERL_ARGS_ASSERT_PATH_IS_SEARCHABLE; | |
3622 | ||
3623 | if (PERL_FILE_IS_ABSOLUTE(name) | |
3624 | #ifdef WIN32 | |
3625 | || (*name == '.' && ((name[1] == '/' || | |
3626 | (name[1] == '.' && name[2] == '/')) | |
3627 | || (name[1] == '\\' || | |
3628 | ( name[1] == '.' && name[2] == '\\'))) | |
3629 | ) | |
3630 | #else | |
3631 | || (*name == '.' && (name[1] == '/' || | |
3632 | (name[1] == '.' && name[2] == '/'))) | |
3633 | #endif | |
3634 | ) | |
3635 | { | |
3636 | return FALSE; | |
3637 | } | |
3638 | else | |
3639 | return TRUE; | |
3640 | } | |
3641 | ||
a0d0e21e LW |
3642 | PP(pp_require) |
3643 | { | |
20b7effb | 3644 | dSP; |
eb578fdb | 3645 | PERL_CONTEXT *cx; |
a0d0e21e | 3646 | SV *sv; |
5c144d81 | 3647 | const char *name; |
6132ea6c | 3648 | STRLEN len; |
4492be7a JM |
3649 | char * unixname; |
3650 | STRLEN unixlen; | |
62f5ad7a | 3651 | #ifdef VMS |
4492be7a | 3652 | int vms_unixname = 0; |
155f4c25 | 3653 | char *unixdir; |
62f5ad7a | 3654 | #endif |
c445ea15 AL |
3655 | const char *tryname = NULL; |
3656 | SV *namesv = NULL; | |
f54cb97a | 3657 | const I32 gimme = GIMME_V; |
bbed91b5 | 3658 | int filter_has_file = 0; |
c445ea15 | 3659 | PerlIO *tryrsfp = NULL; |
34113e50 | 3660 | SV *filter_cache = NULL; |
c445ea15 AL |
3661 | SV *filter_state = NULL; |
3662 | SV *filter_sub = NULL; | |
3663 | SV *hook_sv = NULL; | |
6ec9efec JH |
3664 | SV *encoding; |
3665 | OP *op; | |
83b195e4 | 3666 | int saved_errno; |
511712dc | 3667 | bool path_searchable; |
a0d0e21e LW |
3668 | |
3669 | sv = POPs; | |
672794ca | 3670 | SvGETMAGIC(sv); |
d7aa5382 | 3671 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d086148c | 3672 | sv = sv_2mortal(new_version(sv)); |
88010bae | 3673 | if (!Perl_sv_derived_from_pvn(aTHX_ PL_patchlevel, STR_WITH_LEN("version"), 0)) |
ac0e6a2f | 3674 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3675 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3676 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3677 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
e753e3b1 FC |
3678 | SVfARG(sv_2mortal(vnormal(sv))), |
3679 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3680 | ); | |
468aa647 RGS |
3681 | } |
3682 | else { | |
d1029faa JP |
3683 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3684 | I32 first = 0; | |
3685 | AV *lav; | |
3686 | SV * const req = SvRV(sv); | |
85fbaab2 | 3687 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3688 | |
3689 | /* get the left hand term */ | |
502c6561 | 3690 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3691 | |
3692 | first = SvIV(*av_fetch(lav,0,0)); | |
3693 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3694 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
b9f2b683 | 3695 | || av_tindex(lav) > 1 /* FP with > 3 digits */ |
d1029faa JP |
3696 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ |
3697 | ) { | |
3698 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
9d056fb0 FC |
3699 | "%"SVf", stopped", |
3700 | SVfARG(sv_2mortal(vnormal(req))), | |
3701 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3702 | ); | |
d1029faa JP |
3703 | } |
3704 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3705 | SV *hintsv; |
d1029faa JP |
3706 | I32 second = 0; |
3707 | ||
b9f2b683 | 3708 | if (av_tindex(lav)>=1) |
d1029faa JP |
3709 | second = SvIV(*av_fetch(lav,1,0)); |
3710 | ||
3711 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3712 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3713 | (int)first, (int)second); | |
d1029faa JP |
3714 | upg_version(hintsv, TRUE); |
3715 | ||
3716 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3717 | "--this is only %"SVf", stopped", | |
1be7d6f3 FC |
3718 | SVfARG(sv_2mortal(vnormal(req))), |
3719 | SVfARG(sv_2mortal(vnormal(sv_2mortal(hintsv)))), | |
3720 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3721 | ); | |
d1029faa JP |
3722 | } |
3723 | } | |
468aa647 | 3724 | } |
d7aa5382 | 3725 | |
7dfde25d | 3726 | RETPUSHYES; |
a0d0e21e | 3727 | } |
f04d2c34 YO |
3728 | if (!SvOK(sv)) |
3729 | DIE(aTHX_ "Missing or undefined argument to require"); | |
672794ca | 3730 | name = SvPV_nomg_const(sv, len); |
6132ea6c | 3731 | if (!(name && len > 0 && *name)) |
f04d2c34 YO |
3732 | DIE(aTHX_ "Missing or undefined argument to require"); |
3733 | ||
41188aa0 | 3734 | if (!IS_SAFE_PATHNAME(name, len, "require")) { |
c8028aa6 TC |
3735 | DIE(aTHX_ "Can't locate %s: %s", |
3736 | pv_escape(newSVpvs_flags("",SVs_TEMP),SvPVX(sv),SvCUR(sv), | |
3737 | SvCUR(sv)*2,NULL, SvUTF8(sv)?PERL_PV_ESCAPE_UNI:0), | |
3738 | Strerror(ENOENT)); | |
3739 | } | |
4633a7c4 | 3740 | TAINT_PROPER("require"); |
4492be7a | 3741 | |
511712dc | 3742 | path_searchable = path_is_searchable(name); |
4492be7a JM |
3743 | |
3744 | #ifdef VMS | |
3745 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3746 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3747 | * can result in a module being pulled in more than once. | |
3748 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3749 | * name can be translated to UNIX. | |
3750 | */ | |
155f4c25 | 3751 | |
8de90695 FC |
3752 | if ((unixname = |
3753 | tounixspec(name, SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1))))) | |
3754 | != NULL) { | |
4492be7a JM |
3755 | unixlen = strlen(unixname); |
3756 | vms_unixname = 1; | |
3757 | } | |
3758 | else | |
3759 | #endif | |
3760 | { | |
3761 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3762 | * through. | |
3763 | */ | |
3764 | unixname = (char *) name; | |
3765 | unixlen = len; | |
3766 | } | |
44f8325f | 3767 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3768 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3769 | unixname, unixlen, 0); | |
44f8325f AL |
3770 | if ( svp ) { |
3771 | if (*svp != &PL_sv_undef) | |
3772 | RETPUSHYES; | |
3773 | else | |
087b5369 RD |
3774 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3775 | "Compilation failed in require", unixname); | |
44f8325f | 3776 | } |
4d8b06f1 | 3777 | } |
a0d0e21e | 3778 | |
32aeab29 SM |
3779 | LOADING_FILE_PROBE(unixname); |
3780 | ||
a0d0e21e LW |
3781 | /* prepare to compile file */ |
3782 | ||
511712dc | 3783 | if (!path_searchable) { |
282b29ee | 3784 | /* At this point, name is SvPVX(sv) */ |
46fc3d4c | 3785 | tryname = name; |
282b29ee | 3786 | tryrsfp = doopen_pm(sv); |
bf4acbe4 | 3787 | } |
511712dc | 3788 | if (!tryrsfp && !(errno == EACCES && !path_searchable)) { |
44f8325f | 3789 | AV * const ar = GvAVn(PL_incgv); |
c70927a6 | 3790 | SSize_t i; |
748a9306 | 3791 | #ifdef VMS |
4492be7a | 3792 | if (vms_unixname) |
46fc3d4c | 3793 | #endif |
3794 | { | |
9ffd39ab | 3795 | SV *nsv = sv; |
d0328fd7 | 3796 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3797 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3798 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3799 | |
6567ce24 | 3800 | SvGETMAGIC(dirsv); |
bbed91b5 KF |
3801 | if (SvROK(dirsv)) { |
3802 | int count; | |
a3b58a99 | 3803 | SV **svp; |
bbed91b5 KF |
3804 | SV *loader = dirsv; |
3805 | ||
e14e2dc8 | 3806 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
6567ce24 | 3807 | && !SvOBJECT(SvRV(loader))) |
e14e2dc8 | 3808 | { |
502c6561 | 3809 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
6567ce24 | 3810 | SvGETMAGIC(loader); |
bbed91b5 KF |
3811 | } |
3812 | ||
b900a521 | 3813 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3814 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3815 | tryname = SvPVX_const(namesv); |
c445ea15 | 3816 | tryrsfp = NULL; |
bbed91b5 | 3817 | |
9ffd39ab FC |
3818 | if (SvPADTMP(nsv)) { |
3819 | nsv = sv_newmortal(); | |
3820 | SvSetSV_nosteal(nsv,sv); | |
3821 | } | |
901ee108 FC |
3822 | |
3823 | ENTER_with_name("call_INC"); | |
3824 | SAVETMPS; | |
bbed91b5 KF |
3825 | EXTEND(SP, 2); |
3826 | ||
3827 | PUSHMARK(SP); | |
3828 | PUSHs(dirsv); | |
9ffd39ab | 3829 | PUSHs(nsv); |
bbed91b5 | 3830 | PUTBACK; |
6567ce24 FC |
3831 | if (SvGMAGICAL(loader)) { |
3832 | SV *l = sv_newmortal(); | |
3833 | sv_setsv_nomg(l, loader); | |
3834 | loader = l; | |
3835 | } | |
e982885c NC |
3836 | if (sv_isobject(loader)) |
3837 | count = call_method("INC", G_ARRAY); | |
3838 | else | |
3839 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3840 | SPAGAIN; |
3841 | ||
3842 | if (count > 0) { | |
3843 | int i = 0; | |
3844 | SV *arg; | |
3845 | ||
3846 | SP -= count - 1; | |
3847 | arg = SP[i++]; | |
3848 | ||
34113e50 NC |
3849 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3850 | && !isGV_with_GP(SvRV(arg))) { | |
3851 | filter_cache = SvRV(arg); | |
34113e50 NC |
3852 | |
3853 | if (i < count) { | |
3854 | arg = SP[i++]; | |
3855 | } | |
3856 | } | |
3857 | ||
6e592b3a | 3858 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3859 | arg = SvRV(arg); |
3860 | } | |
3861 | ||
6e592b3a | 3862 | if (isGV_with_GP(arg)) { |
159b6efe | 3863 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3864 | |
3865 | ++filter_has_file; | |
3866 | ||
3867 | if (io) { | |
3868 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3869 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3870 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3871 | } |
0f7de14d NC |
3872 | IoIFP(io) = NULL; |
3873 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3874 | } |
3875 | ||
3876 | if (i < count) { | |
3877 | arg = SP[i++]; | |
3878 | } | |
3879 | } | |
3880 | ||
3881 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3882 | filter_sub = arg; | |
74c765eb | 3883 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3884 | |
3885 | if (i < count) { | |
3886 | filter_state = SP[i]; | |
b37c2d43 | 3887 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3888 | } |
34113e50 | 3889 | } |
bbed91b5 | 3890 | |
34113e50 NC |
3891 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3892 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3893 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3894 | } |
1d06aecd | 3895 | SP--; |
bbed91b5 KF |
3896 | } |
3897 | ||
c39fcc09 FC |
3898 | /* FREETMPS may free our filter_cache */ |
3899 | SvREFCNT_inc_simple_void(filter_cache); | |
3900 | ||
bbed91b5 KF |
3901 | PUTBACK; |
3902 | FREETMPS; | |
d343c3ef | 3903 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3904 | |
c39fcc09 FC |
3905 | /* Now re-mortalize it. */ |
3906 | sv_2mortal(filter_cache); | |
3907 | ||
c5f55552 NC |
3908 | /* Adjust file name if the hook has set an %INC entry. |
3909 | This needs to happen after the FREETMPS above. */ | |
3910 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3911 | if (svp) | |
3912 | tryname = SvPV_nolen_const(*svp); | |
3913 | ||
bbed91b5 | 3914 | if (tryrsfp) { |
89ccab8c | 3915 | hook_sv = dirsv; |
bbed91b5 KF |
3916 | break; |
3917 | } | |
3918 | ||
3919 | filter_has_file = 0; | |
9b7d7782 | 3920 | filter_cache = NULL; |
bbed91b5 | 3921 | if (filter_state) { |
762333d9 | 3922 | SvREFCNT_dec_NN(filter_state); |
c445ea15 | 3923 | filter_state = NULL; |
bbed91b5 KF |
3924 | } |
3925 | if (filter_sub) { | |
762333d9 | 3926 | SvREFCNT_dec_NN(filter_sub); |
c445ea15 | 3927 | filter_sub = NULL; |
bbed91b5 KF |
3928 | } |
3929 | } | |
3930 | else { | |
511712dc | 3931 | if (path_searchable) { |
b640a14a NC |
3932 | const char *dir; |
3933 | STRLEN dirlen; | |
3934 | ||
3935 | if (SvOK(dirsv)) { | |
6567ce24 | 3936 | dir = SvPV_nomg_const(dirsv, dirlen); |
b640a14a NC |
3937 | } else { |
3938 | dir = ""; | |
3939 | dirlen = 0; | |
3940 | } | |
3941 | ||
ddc65b67 CB |
3942 | if (!IS_SAFE_SYSCALL(dir, dirlen, "@INC entry", "require")) |
3943 | continue; | |
e37778c2 | 3944 | #ifdef VMS |
8de90695 FC |
3945 | if ((unixdir = |
3946 | tounixpath(dir, SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1))))) | |
3947 | == NULL) | |
bbed91b5 KF |
3948 | continue; |
3949 | sv_setpv(namesv, unixdir); | |
3950 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3951 | #else |
3952 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3953 | if (PL_origfilename[0] && |
3954 | PL_origfilename[1] == ':' && | |
3955 | !(dir[0] && dir[1] == ':')) | |
3956 | Perl_sv_setpvf(aTHX_ namesv, | |
3957 | "%c:%s\\%s", | |
3958 | PL_origfilename[0], | |
3959 | dir, name); | |
3960 | else | |
3961 | Perl_sv_setpvf(aTHX_ namesv, | |
3962 | "%s\\%s", | |
3963 | dir, name); | |
e37778c2 | 3964 | # else |
b640a14a NC |
3965 | /* The equivalent of |
3966 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3967 | but without the need to parse the format string, or | |
3968 | call strlen on either pointer, and with the correct | |
3969 | allocation up front. */ | |
3970 | { | |
3971 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3972 | ||
3973 | memcpy(tmp, dir, dirlen); | |
3974 | tmp +=dirlen; | |
6b0bdd7f MH |
3975 | |
3976 | /* Avoid '<dir>//<file>' */ | |
3977 | if (!dirlen || *(tmp-1) != '/') { | |
3978 | *tmp++ = '/'; | |
9fdd5a7a MH |
3979 | } else { |
3980 | /* So SvCUR_set reports the correct length below */ | |
3981 | dirlen--; | |
6b0bdd7f MH |
3982 | } |
3983 | ||
b640a14a NC |
3984 | /* name came from an SV, so it will have a '\0' at the |
3985 | end that we can copy as part of this memcpy(). */ | |
3986 | memcpy(tmp, name, len + 1); | |
3987 | ||
3988 | SvCUR_set(namesv, dirlen + len + 1); | |
282b29ee | 3989 | SvPOK_on(namesv); |
b640a14a | 3990 | } |
27da23d5 | 3991 | # endif |
bf4acbe4 | 3992 | #endif |
bbed91b5 | 3993 | TAINT_PROPER("require"); |
349d4f2f | 3994 | tryname = SvPVX_const(namesv); |
282b29ee | 3995 | tryrsfp = doopen_pm(namesv); |
bbed91b5 | 3996 | if (tryrsfp) { |
e63be746 RGS |
3997 | if (tryname[0] == '.' && tryname[1] == '/') { |
3998 | ++tryname; | |
4910606a | 3999 | while (*++tryname == '/') {} |
e63be746 | 4000 | } |
bbed91b5 KF |
4001 | break; |
4002 | } | |
2433d39e BF |
4003 | else if (errno == EMFILE || errno == EACCES) { |
4004 | /* no point in trying other paths if out of handles; | |
4005 | * on the other hand, if we couldn't open one of the | |
4006 | * files, then going on with the search could lead to | |
4007 | * unexpected results; see perl #113422 | |
4008 | */ | |
4009 | break; | |
4010 | } | |
be4b629d | 4011 | } |
46fc3d4c | 4012 | } |
a0d0e21e LW |
4013 | } |
4014 | } | |
4015 | } | |
83b195e4 | 4016 | saved_errno = errno; /* sv_2mortal can realloc things */ |
b2ef6d44 | 4017 | sv_2mortal(namesv); |
a0d0e21e | 4018 | if (!tryrsfp) { |
533c011a | 4019 | if (PL_op->op_type == OP_REQUIRE) { |
83b195e4 | 4020 | if(saved_errno == EMFILE || saved_errno == EACCES) { |
c9d5e35e | 4021 | /* diag_listed_as: Can't locate %s */ |
83b195e4 | 4022 | DIE(aTHX_ "Can't locate %s: %s", name, Strerror(saved_errno)); |
e31de809 SP |
4023 | } else { |
4024 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 4025 | AV * const ar = GvAVn(PL_incgv); |
c70927a6 | 4026 | SSize_t i; |
1e5f02b3 | 4027 | SV *const msg = newSVpvs_flags("", SVs_TEMP); |
c9d5e35e NC |
4028 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
4029 | for (i = 0; i <= AvFILL(ar); i++) { | |
4030 | sv_catpvs(inc, " "); | |
4031 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
4032 | } | |
f7ee53b5 PJ |
4033 | if (len >= 4 && memEQ(name + len - 3, ".pm", 4)) { |
4034 | const char *c, *e = name + len - 3; | |
4035 | sv_catpv(msg, " (you may need to install the "); | |
4036 | for (c = name; c < e; c++) { | |
4037 | if (*c == '/') { | |
46e2868e | 4038 | sv_catpvs(msg, "::"); |
f7ee53b5 PJ |
4039 | } |
4040 | else { | |
4041 | sv_catpvn(msg, c, 1); | |
4042 | } | |
4043 | } | |
4044 | sv_catpv(msg, " module)"); | |
4045 | } | |
4046 | else if (len >= 2 && memEQ(name + len - 2, ".h", 3)) { | |
4047 | sv_catpv(msg, " (change .h to .ph maybe?) (did you run h2ph?)"); | |
4048 | } | |
4049 | else if (len >= 3 && memEQ(name + len - 3, ".ph", 4)) { | |
4050 | sv_catpv(msg, " (did you run h2ph?)"); | |
4051 | } | |
c9d5e35e NC |
4052 | |
4053 | /* diag_listed_as: Can't locate %s */ | |
4054 | DIE(aTHX_ | |
f7ee53b5 PJ |
4055 | "Can't locate %s in @INC%" SVf " (@INC contains:%" SVf ")", |
4056 | name, msg, inc); | |
c9d5e35e | 4057 | } |
2683423c | 4058 | } |
c9d5e35e | 4059 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
4060 | } |
4061 | ||
a3ff80c1 | 4062 | CLEAR_ERRSV(); |
a0d0e21e LW |
4063 | RETPUSHUNDEF; |
4064 | } | |
d8bfb8bd | 4065 | else |
93189314 | 4066 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
4067 | |
4068 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 4069 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 4070 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 4071 | if (!hook_sv) { |
4492be7a | 4072 | (void)hv_store(GvHVn(PL_incgv), |
b2ef6d44 | 4073 | unixname, unixlen, newSVpv(tryname,0),0); |
44f8325f | 4074 | } else { |
4492be7a | 4075 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 4076 | if (!svp) |
4492be7a JM |
4077 | (void)hv_store(GvHVn(PL_incgv), |
4078 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 4079 | } |
a0d0e21e | 4080 | |
d343c3ef | 4081 | ENTER_with_name("eval"); |
a0d0e21e | 4082 | SAVETMPS; |
b2ef6d44 FC |
4083 | SAVECOPFILE_FREE(&PL_compiling); |
4084 | CopFILE_set(&PL_compiling, tryname); | |
8eaa0acf | 4085 | lex_start(NULL, tryrsfp, 0); |
e50aee73 | 4086 | |
34113e50 | 4087 | if (filter_sub || filter_cache) { |
4464f08e NC |
4088 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
4089 | than hanging another SV from it. In turn, filter_add() optionally | |
4090 | takes the SV to use as the filter (or creates a new SV if passed | |
4091 | NULL), so simply pass in whatever value filter_cache has. */ | |
9b7d7782 FC |
4092 | SV * const fc = filter_cache ? newSV(0) : NULL; |
4093 | SV *datasv; | |
4094 | if (fc) sv_copypv(fc, filter_cache); | |
4095 | datasv = filter_add(S_run_user_filter, fc); | |
bbed91b5 | 4096 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
4097 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
4098 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
4099 | } |
4100 | ||
4101 | /* switch to eval mode */ | |
a0d0e21e | 4102 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 4103 | PUSHEVAL(cx, name); |
f39bc417 | 4104 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 4105 | |
57843af0 GS |
4106 | SAVECOPLINE(&PL_compiling); |
4107 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
4108 | |
4109 | PUTBACK; | |
6ec9efec JH |
4110 | |
4111 | /* Store and reset encoding. */ | |
4112 | encoding = PL_encoding; | |
c445ea15 | 4113 | PL_encoding = NULL; |
6ec9efec | 4114 | |
104a8185 | 4115 | if (doeval(gimme, NULL, PL_curcop->cop_seq, NULL)) |
410be5db DM |
4116 | op = DOCATCH(PL_eval_start); |
4117 | else | |
4118 | op = PL_op->op_next; | |
bfed75c6 | 4119 | |
6ec9efec JH |
4120 | /* Restore encoding. */ |
4121 | PL_encoding = encoding; | |
4122 | ||
32aeab29 SM |
4123 | LOADED_FILE_PROBE(unixname); |
4124 | ||
6ec9efec | 4125 | return op; |
a0d0e21e LW |
4126 | } |
4127 | ||
996c9baa VP |
4128 | /* This is a op added to hold the hints hash for |
4129 | pp_entereval. The hash can be modified by the code | |
4130 | being eval'ed, so we return a copy instead. */ | |
4131 | ||
4132 | PP(pp_hintseval) | |
4133 | { | |
996c9baa | 4134 | dSP; |
defdfed5 | 4135 | mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
4136 | RETURN; |
4137 | } | |
4138 | ||
4139 | ||
a0d0e21e LW |
4140 | PP(pp_entereval) |
4141 | { | |
20b7effb | 4142 | dSP; |
eb578fdb | 4143 | PERL_CONTEXT *cx; |
0d863452 | 4144 | SV *sv; |
890ce7af | 4145 | const I32 gimme = GIMME_V; |
fd06b02c | 4146 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 | 4147 | char tbuf[TYPE_DIGITS(long) + 12]; |
78da7625 | 4148 | bool saved_delete = FALSE; |
83ee9e09 | 4149 | char *tmpbuf = tbuf; |
a0d0e21e | 4150 | STRLEN len; |
a3985cdc | 4151 | CV* runcv; |
0abcdfa4 | 4152 | U32 seq, lex_flags = 0; |
c445ea15 | 4153 | HV *saved_hh = NULL; |
60d63348 | 4154 | const bool bytes = PL_op->op_private & OPpEVAL_BYTES; |
e389bba9 | 4155 | |
0d863452 | 4156 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 4157 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 | 4158 | } |
bc344123 FC |
4159 | else if (PL_hints & HINT_LOCALIZE_HH || ( |
4160 | PL_op->op_private & OPpEVAL_COPHH | |
4161 | && PL_curcop->cop_hints & HINT_LOCALIZE_HH | |
4162 | )) { | |
7d789282 FC |
4163 | saved_hh = cop_hints_2hv(PL_curcop, 0); |
4164 | hv_magic(saved_hh, NULL, PERL_MAGIC_hints); | |
4165 | } | |
0d863452 | 4166 | sv = POPs; |
895b760f DM |
4167 | if (!SvPOK(sv)) { |
4168 | /* make sure we've got a plain PV (no overload etc) before testing | |
4169 | * for taint. Making a copy here is probably overkill, but better | |
4170 | * safe than sorry */ | |
0479a84a NC |
4171 | STRLEN len; |
4172 | const char * const p = SvPV_const(sv, len); | |
4173 | ||
4174 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
0abcdfa4 | 4175 | lex_flags |= LEX_START_COPIED; |
7d789282 | 4176 | |
60d63348 | 4177 | if (bytes && SvUTF8(sv)) |
7d789282 FC |
4178 | SvPVbyte_force(sv, len); |
4179 | } | |
60d63348 | 4180 | else if (bytes && SvUTF8(sv)) { |
e1fa07e3 | 4181 | /* Don't modify someone else's scalar */ |
7d789282 FC |
4182 | STRLEN len; |
4183 | sv = newSVsv(sv); | |
5cefc8c1 | 4184 | (void)sv_2mortal(sv); |
7d789282 | 4185 | SvPVbyte_force(sv,len); |
0abcdfa4 | 4186 | lex_flags |= LEX_START_COPIED; |
895b760f | 4187 | } |
a0d0e21e | 4188 | |
af2d3def | 4189 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 4190 | TAINT_PROPER("eval"); |
a0d0e21e | 4191 | |
d343c3ef | 4192 | ENTER_with_name("eval"); |
0abcdfa4 | 4193 | lex_start(sv, NULL, lex_flags | (PL_op->op_private & OPpEVAL_UNICODE |
60d63348 FC |
4194 | ? LEX_IGNORE_UTF8_HINTS |
4195 | : bytes ? LEX_EVALBYTES : LEX_START_SAME_FILTER | |
0abcdfa4 | 4196 | ) |
60d63348 | 4197 | ); |
748a9306 | 4198 | SAVETMPS; |
ac27b0f5 | 4199 | |
a0d0e21e LW |
4200 | /* switch to eval mode */ |
4201 | ||
83ee9e09 | 4202 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
4203 | SV * const temp_sv = sv_newmortal(); |
4204 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
4205 | (unsigned long)++PL_evalseq, |
4206 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
4207 | tmpbuf = SvPVX(temp_sv); |
4208 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
4209 | } |
4210 | else | |
d9fad198 | 4211 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 4212 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 4213 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 4214 | SAVECOPLINE(&PL_compiling); |
57843af0 | 4215 | CopLINE_set(&PL_compiling, 1); |
d819b83a DM |
4216 | /* special case: an eval '' executed within the DB package gets lexically |
4217 | * placed in the first non-DB CV rather than the current CV - this | |
4218 | * allows the debugger to execute code, find lexicals etc, in the | |
4219 | * scope of the code being debugged. Passing &seq gets find_runcv | |
4220 | * to do the dirty work for us */ | |
4221 | runcv = find_runcv(&seq); | |
a0d0e21e | 4222 | |
6b35e009 | 4223 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 4224 | PUSHEVAL(cx, 0); |
f39bc417 | 4225 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
4226 | |
4227 | /* prepare to compile string */ | |
4228 | ||
a44e3ce2 | 4229 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 4230 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
78da7625 | 4231 | else { |
c8cb8d55 FC |
4232 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
4233 | deleting the eval's FILEGV from the stash before gv_check() runs | |
4234 | (i.e. before run-time proper). To work around the coredump that | |
4235 | ensues, we always turn GvMULTI_on for any globals that were | |
4236 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
78da7625 FC |
4237 | char *const safestr = savepvn(tmpbuf, len); |
4238 | SAVEDELETE(PL_defstash, safestr, len); | |
4239 | saved_delete = TRUE; | |
4240 | } | |
4241 | ||
a0d0e21e | 4242 | PUTBACK; |
f9bddea7 | 4243 | |
104a8185 | 4244 | if (doeval(gimme, runcv, seq, saved_hh)) { |
f9bddea7 NC |
4245 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4246 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4247 | : PERLDB_SAVESRC_NOSUBS) { | |
4248 | /* Retain the filegv we created. */ | |
78da7625 | 4249 | } else if (!saved_delete) { |
f9bddea7 NC |
4250 | char *const safestr = savepvn(tmpbuf, len); |
4251 | SAVEDELETE(PL_defstash, safestr, len); | |
4252 | } | |
4253 | return DOCATCH(PL_eval_start); | |
4254 | } else { | |
486ec47a | 4255 | /* We have already left the scope set up earlier thanks to the LEAVE |
f9bddea7 | 4256 | in doeval(). */ |
eb044b10 NC |
4257 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4258 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4259 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 | 4260 | /* Retain the filegv we created. */ |
7857f360 | 4261 | } else if (!saved_delete) { |
f9bddea7 NC |
4262 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); |
4263 | } | |
4264 | return PL_op->op_next; | |
4265 | } | |
a0d0e21e LW |
4266 | } |
4267 | ||
4268 | PP(pp_leaveeval) | |
4269 | { | |
20b7effb | 4270 | dSP; |
a0d0e21e LW |
4271 | SV **newsp; |
4272 | PMOP *newpm; | |
4273 | I32 gimme; | |
eb578fdb | 4274 | PERL_CONTEXT *cx; |
a0d0e21e | 4275 | OP *retop; |
06b5626a | 4276 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e | 4277 | I32 optype; |
b6494f15 | 4278 | SV *namesv; |
676a678a | 4279 | CV *evalcv; |
a0d0e21e | 4280 | |
011c3814 | 4281 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4282 | POPBLOCK(cx,newpm); |
4283 | POPEVAL(cx); | |
b6494f15 | 4284 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 4285 | retop = cx->blk_eval.retop; |
676a678a | 4286 | evalcv = cx->blk_eval.cv; |
a0d0e21e | 4287 | |
a1f49e72 | 4288 | TAINT_NOT; |
b9d76716 | 4289 | SP = adjust_stack_on_leave((gimme == G_VOID) ? SP : newsp, SP, newsp, |
2ec7f6f2 | 4290 | gimme, SVs_TEMP, FALSE); |
3280af22 | 4291 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4292 | |
4fdae800 | 4293 | #ifdef DEBUGGING |
676a678a | 4294 | assert(CvDEPTH(evalcv) == 1); |
4fdae800 | 4295 | #endif |
676a678a | 4296 | CvDEPTH(evalcv) = 0; |
4fdae800 | 4297 | |
1ce6579f | 4298 | if (optype == OP_REQUIRE && |
924508f0 | 4299 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 4300 | { |
1ce6579f | 4301 | /* Unassume the success we assumed earlier. */ |
b6494f15 | 4302 | (void)hv_delete(GvHVn(PL_incgv), |
ecad31f0 | 4303 | SvPVX_const(namesv), |
c60dbbc3 | 4304 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 | 4305 | G_DISCARD); |
81d52ecd | 4306 | Perl_die(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); |
a25b5927 | 4307 | NOT_REACHED; /* NOTREACHED */ |
c5df3096 | 4308 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
4309 | } |
4310 | else { | |
d343c3ef | 4311 | LEAVE_with_name("eval"); |
8433848b | 4312 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 4313 | CLEAR_ERRSV(); |
8433848b | 4314 | } |
a0d0e21e | 4315 | } |
a0d0e21e LW |
4316 | |
4317 | RETURNOP(retop); | |
4318 | } | |
4319 | ||
edb2152a NC |
4320 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
4321 | close to the related Perl_create_eval_scope. */ | |
4322 | void | |
4323 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 4324 | { |
edb2152a NC |
4325 | SV **newsp; |
4326 | PMOP *newpm; | |
4327 | I32 gimme; | |
eb578fdb | 4328 | PERL_CONTEXT *cx; |
edb2152a NC |
4329 | I32 optype; |
4330 | ||
4331 | POPBLOCK(cx,newpm); | |
4332 | POPEVAL(cx); | |
4333 | PL_curpm = newpm; | |
d343c3ef | 4334 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
4335 | PERL_UNUSED_VAR(newsp); |
4336 | PERL_UNUSED_VAR(gimme); | |
4337 | PERL_UNUSED_VAR(optype); | |
4338 | } | |
a0d0e21e | 4339 | |
edb2152a NC |
4340 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
4341 | also needed by Perl_fold_constants. */ | |
4342 | PERL_CONTEXT * | |
4343 | Perl_create_eval_scope(pTHX_ U32 flags) | |
4344 | { | |
4345 | PERL_CONTEXT *cx; | |
4346 | const I32 gimme = GIMME_V; | |
4347 | ||
d343c3ef | 4348 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
4349 | SAVETMPS; |
4350 | ||
edb2152a | 4351 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 4352 | PUSHEVAL(cx, 0); |
a0d0e21e | 4353 | |
faef0170 | 4354 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
4355 | if (flags & G_KEEPERR) |
4356 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
4357 | else |
4358 | CLEAR_ERRSV(); | |
edb2152a NC |
4359 | if (flags & G_FAKINGEVAL) { |
4360 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
4361 | } | |
4362 | return cx; | |
4363 | } | |
4364 | ||
4365 | PP(pp_entertry) | |
4366 | { | |
df528165 | 4367 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4368 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4369 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4370 | } |
4371 | ||
4372 | PP(pp_leavetry) | |
4373 | { | |
20b7effb | 4374 | dSP; |
a0d0e21e LW |
4375 | SV **newsp; |
4376 | PMOP *newpm; | |
4377 | I32 gimme; | |
eb578fdb | 4378 | PERL_CONTEXT *cx; |
a0d0e21e LW |
4379 | I32 optype; |
4380 | ||
011c3814 | 4381 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4382 | POPBLOCK(cx,newpm); |
4383 | POPEVAL(cx); | |
9d4ba2ae | 4384 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4385 | |
a1f49e72 | 4386 | TAINT_NOT; |
2ec7f6f2 FC |
4387 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, |
4388 | SVs_PADTMP|SVs_TEMP, FALSE); | |
3280af22 | 4389 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4390 | |
d343c3ef | 4391 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4392 | CLEAR_ERRSV(); |
745cf2ff | 4393 | RETURN; |
a0d0e21e LW |
4394 | } |
4395 | ||
0d863452 RH |
4396 | PP(pp_entergiven) |
4397 | { | |
20b7effb | 4398 | dSP; |
eb578fdb | 4399 | PERL_CONTEXT *cx; |
0d863452 RH |
4400 | const I32 gimme = GIMME_V; |
4401 | ||
d343c3ef | 4402 | ENTER_with_name("given"); |
0d863452 RH |
4403 | SAVETMPS; |
4404 | ||
b5a64814 FC |
4405 | if (PL_op->op_targ) { |
4406 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); | |
4407 | SvREFCNT_dec(PAD_SVl(PL_op->op_targ)); | |
4408 | PAD_SVl(PL_op->op_targ) = SvREFCNT_inc_NN(POPs); | |
4409 | } | |
4410 | else { | |
4411 | SAVE_DEFSV; | |
4412 | DEFSV_set(POPs); | |
4413 | } | |
0d863452 RH |
4414 | |
4415 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4416 | PUSHGIVEN(cx); | |
4417 | ||
4418 | RETURN; | |
4419 | } | |
4420 | ||
4421 | PP(pp_leavegiven) | |
4422 | { | |
20b7effb | 4423 | dSP; |
eb578fdb | 4424 | PERL_CONTEXT *cx; |
0d863452 RH |
4425 | I32 gimme; |
4426 | SV **newsp; | |
4427 | PMOP *newpm; | |
96a5add6 | 4428 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4429 | |
4430 | POPBLOCK(cx,newpm); | |
4431 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4432 | |
25b991bf | 4433 | TAINT_NOT; |
2ec7f6f2 FC |
4434 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, |
4435 | SVs_PADTMP|SVs_TEMP, FALSE); | |
25b991bf | 4436 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
0d863452 | 4437 | |
d343c3ef | 4438 | LEAVE_with_name("given"); |
25b991bf | 4439 | RETURN; |
0d863452 RH |
4440 | } |
4441 | ||
4442 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4443 | STATIC PMOP * |
84679df5 | 4444 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 RH |
4445 | { |
4446 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); | |
7918f24d NC |
4447 | |
4448 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4449 | ||
d6106309 | 4450 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4451 | |
0d863452 | 4452 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4453 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4454 | SAVEOP(); |
4455 | return matcher; | |
4456 | } | |
4457 | ||
4136a0f7 | 4458 | STATIC bool |
0d863452 RH |
4459 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4460 | { | |
4461 | dSP; | |
7918f24d NC |
4462 | |
4463 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4464 | |
4465 | PL_op = (OP *) matcher; | |
4466 | XPUSHs(sv); | |
4467 | PUTBACK; | |
897d3989 | 4468 | (void) Perl_pp_match(aTHX); |
0d863452 RH |
4469 | SPAGAIN; |
4470 | return (SvTRUEx(POPs)); | |
4471 | } | |
4472 | ||
4136a0f7 | 4473 | STATIC void |
0d863452 RH |
4474 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4475 | { | |
7918f24d | 4476 | PERL_ARGS_ASSERT_DESTROY_MATCHER; |
0d863452 | 4477 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4478 | |
0d863452 | 4479 | FREETMPS; |
d343c3ef | 4480 | LEAVE_with_name("matcher"); |
0d863452 RH |
4481 | } |
4482 | ||
4483 | /* Do a smart match */ | |
4484 | PP(pp_smartmatch) | |
4485 | { | |
d7c0d282 | 4486 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
be88a5c3 | 4487 | return do_smartmatch(NULL, NULL, 0); |
0d863452 RH |
4488 | } |
4489 | ||
4b021f5f RGS |
4490 | /* This version of do_smartmatch() implements the |
4491 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4492 | */ |
4136a0f7 | 4493 | STATIC OP * |
be88a5c3 | 4494 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other, const bool copied) |
0d863452 RH |
4495 | { |
4496 | dSP; | |
4497 | ||
41e726ac | 4498 | bool object_on_left = FALSE; |
0d863452 RH |
4499 | SV *e = TOPs; /* e is for 'expression' */ |
4500 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4501 | |
6f1401dc DM |
4502 | /* Take care only to invoke mg_get() once for each argument. |
4503 | * Currently we do this by copying the SV if it's magical. */ | |
4504 | if (d) { | |
be88a5c3 | 4505 | if (!copied && SvGMAGICAL(d)) |
6f1401dc DM |
4506 | d = sv_mortalcopy(d); |
4507 | } | |
4508 | else | |
4509 | d = &PL_sv_undef; | |
4510 | ||
4511 | assert(e); | |
4512 | if (SvGMAGICAL(e)) | |
4513 | e = sv_mortalcopy(e); | |
4514 | ||
2c9d2554 | 4515 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4516 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4517 | SV * tmpsv; |
4518 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4519 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4520 | ||
b900a653 | 4521 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noleft); |
7c41e62e RGS |
4522 | if (tmpsv) { |
4523 | SPAGAIN; | |
4524 | (void)POPs; | |
4525 | SETs(tmpsv); | |
4526 | RETURN; | |
4527 | } | |
d7c0d282 | 4528 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4529 | } |
62ec5f58 | 4530 | |
0d863452 RH |
4531 | SP -= 2; /* Pop the values */ |
4532 | ||
0d863452 | 4533 | |
b0138e99 | 4534 | /* ~~ undef */ |
62ec5f58 | 4535 | if (!SvOK(e)) { |
d7c0d282 | 4536 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4537 | if (SvOK(d)) |
33570f8b RGS |
4538 | RETPUSHNO; |
4539 | else | |
62ec5f58 | 4540 | RETPUSHYES; |
33570f8b | 4541 | } |
e67b97bd | 4542 | |
d7c0d282 DM |
4543 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4544 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4545 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4546 | } |
41e726ac RGS |
4547 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4548 | object_on_left = TRUE; | |
62ec5f58 | 4549 | |
b0138e99 | 4550 | /* ~~ sub */ |
a4a197da | 4551 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4552 | I32 c; |
41e726ac RGS |
4553 | if (object_on_left) { |
4554 | goto sm_any_sub; /* Treat objects like scalars */ | |
4555 | } | |
4556 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4557 | /* Test sub truth for each key */ |
4558 | HE *he; | |
4559 | bool andedresults = TRUE; | |
4560 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4561 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4562 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4563 | if (numkeys == 0) |
07edf497 | 4564 | RETPUSHYES; |
a4a197da | 4565 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4566 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4567 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4568 | SAVETMPS; |
4569 | PUSHMARK(SP); | |
4570 | PUSHs(hv_iterkeysv(he)); | |
4571 | PUTBACK; | |
4572 | c = call_sv(e, G_SCALAR); | |
4573 | SPAGAIN; | |
4574 | if (c == 0) | |
4575 | andedresults = FALSE; | |
4576 | else | |
4577 | andedresults = SvTRUEx(POPs) && andedresults; | |
4578 | FREETMPS; | |
d343c3ef | 4579 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4580 | } |
4581 | if (andedresults) | |
4582 | RETPUSHYES; | |
4583 | else | |
4584 | RETPUSHNO; | |
4585 | } | |
4586 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4587 | /* Test sub truth for each element */ | |
c70927a6 | 4588 | SSize_t i; |
a4a197da RGS |
4589 | bool andedresults = TRUE; |
4590 | AV *av = (AV*) SvRV(d); | |
b9f2b683 | 4591 | const I32 len = av_tindex(av); |
d7c0d282 | 4592 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4593 | if (len == -1) |
07edf497 | 4594 | RETPUSHYES; |
a4a197da RGS |
4595 | for (i = 0; i <= len; ++i) { |
4596 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4597 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4598 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4599 | SAVETMPS; |
4600 | PUSHMARK(SP); | |
4601 | if (svp) | |
4602 | PUSHs(*svp); | |
4603 | PUTBACK; | |
4604 | c = call_sv(e, G_SCALAR); | |
4605 | SPAGAIN; | |
4606 | if (c == 0) | |
4607 | andedresults = FALSE; | |
4608 | else | |
4609 | andedresults = SvTRUEx(POPs) && andedresults; | |
4610 | FREETMPS; | |
d343c3ef | 4611 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4612 | } |
4613 | if (andedresults) | |
4614 | RETPUSHYES; | |
4615 | else | |
4616 | RETPUSHNO; | |
4617 | } | |
4618 | else { | |
41e726ac | 4619 | sm_any_sub: |
d7c0d282 | 4620 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4621 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4622 | SAVETMPS; |
4623 | PUSHMARK(SP); | |
4624 | PUSHs(d); | |
4625 | PUTBACK; | |
4626 | c = call_sv(e, G_SCALAR); | |
4627 | SPAGAIN; | |
4628 | if (c == 0) | |
4629 | PUSHs(&PL_sv_no); | |
4630 | else if (SvTEMP(TOPs)) | |
4631 | SvREFCNT_inc_void(TOPs); | |
4632 | FREETMPS; | |
d343c3ef | 4633 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4634 | RETURN; |
4635 | } | |
0d863452 | 4636 | } |
b0138e99 | 4637 | /* ~~ %hash */ |
61a621c6 | 4638 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4639 | if (object_on_left) { |
4640 | goto sm_any_hash; /* Treat objects like scalars */ | |
4641 | } | |
4642 | else if (!SvOK(d)) { | |
d7c0d282 | 4643 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4644 | RETPUSHNO; |
4645 | } | |
4646 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4647 | /* Check that the key-sets are identical */ |
4648 | HE *he; | |
61a621c6 | 4649 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
6bb3f245 DD |
4650 | bool tied; |
4651 | bool other_tied; | |
0d863452 RH |
4652 | U32 this_key_count = 0, |
4653 | other_key_count = 0; | |
33ed63a2 | 4654 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4655 | |
4656 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4657 | /* Tied hashes don't know how many keys they have. */ |
6bb3f245 DD |
4658 | tied = cBOOL(SvTIED_mg((SV*)hv, PERL_MAGIC_tied)); |
4659 | other_tied = cBOOL(SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)); | |
4660 | if (!tied ) { | |
4661 | if(other_tied) { | |
4662 | /* swap HV sides */ | |
4663 | HV * const temp = other_hv; | |
4664 | other_hv = hv; | |
4665 | hv = temp; | |
4666 | tied = TRUE; | |
4667 | other_tied = FALSE; | |
4668 | } | |
4669 | else if(HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) | |
4670 | RETPUSHNO; | |
0d863452 | 4671 | } |
0d863452 RH |
4672 | |
4673 | /* The hashes have the same number of keys, so it suffices | |
4674 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4675 | (void) hv_iterinit(hv); |
4676 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4677 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4678 | |
4679 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4680 | ++ this_key_count; |
4681 | ||
b15feb55 | 4682 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4683 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4684 | RETPUSHNO; |
4685 | } | |
4686 | } | |
4687 | ||
4688 | if (other_tied) { | |
4689 | (void) hv_iterinit(other_hv); | |
4690 | while ( hv_iternext(other_hv) ) | |
4691 | ++other_key_count; | |
4692 | } | |
4693 | else | |
4694 | other_key_count = HvUSEDKEYS(other_hv); | |
4695 | ||
4696 | if (this_key_count != other_key_count) | |
4697 | RETPUSHNO; | |
4698 | else | |
4699 | RETPUSHYES; | |
4700 | } | |
61a621c6 RGS |
4701 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4702 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
b9f2b683 | 4703 | const SSize_t other_len = av_tindex(other_av) + 1; |
c70927a6 | 4704 | SSize_t i; |
33ed63a2 | 4705 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4706 | |
d7c0d282 | 4707 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4708 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4709 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4710 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4711 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4712 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4713 | RETPUSHYES; |
4714 | } | |
0d863452 | 4715 | } |
71b0fb34 | 4716 | RETPUSHNO; |
0d863452 | 4717 | } |
a566f585 | 4718 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4719 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4720 | sm_regex_hash: |
4721 | { | |
4722 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4723 | HE *he; | |
4724 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4725 | ||
4726 | (void) hv_iterinit(hv); | |
4727 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4728 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4729 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4730 | (void) hv_iterinit(hv); | |
4731 | destroy_matcher(matcher); | |
4732 | RETPUSHYES; | |
4733 | } | |
0d863452 | 4734 | } |
ea0c2dbd RGS |
4735 | destroy_matcher(matcher); |
4736 | RETPUSHNO; | |
0d863452 | 4737 | } |
0d863452 RH |
4738 | } |
4739 | else { | |
41e726ac | 4740 | sm_any_hash: |
d7c0d282 | 4741 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4742 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4743 | RETPUSHYES; |
4744 | else | |
4745 | RETPUSHNO; | |
4746 | } | |
4747 | } | |
b0138e99 RGS |
4748 | /* ~~ @array */ |
4749 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4750 | if (object_on_left) { |
4751 | goto sm_any_array; /* Treat objects like scalars */ | |
4752 | } | |
4753 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 | 4754 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
b9f2b683 | 4755 | const SSize_t other_len = av_tindex(other_av) + 1; |
c70927a6 | 4756 | SSize_t i; |
b0138e99 | 4757 | |
d7c0d282 | 4758 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4759 | for (i = 0; i < other_len; ++i) { |
4760 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4761 | |
4762 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4763 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4764 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4765 | RETPUSHYES; |
4766 | } | |
4767 | } | |
4768 | RETPUSHNO; | |
4769 | } | |
4770 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4771 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4772 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b9f2b683 | 4773 | if (av_tindex(MUTABLE_AV(SvRV(e))) != av_tindex(other_av)) |
0d863452 RH |
4774 | RETPUSHNO; |
4775 | else { | |
c70927a6 | 4776 | SSize_t i; |
b9f2b683 | 4777 | const SSize_t other_len = av_tindex(other_av); |
0d863452 | 4778 | |
a0714e2c | 4779 | if (NULL == seen_this) { |
0d863452 | 4780 | seen_this = newHV(); |
ad64d0ec | 4781 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4782 | } |
a0714e2c | 4783 | if (NULL == seen_other) { |
6bc991bf | 4784 | seen_other = newHV(); |
ad64d0ec | 4785 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4786 | } |
4787 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4788 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4789 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4790 | ||
0d863452 | 4791 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4792 | if ((this_elem && SvOK(*this_elem)) |
4793 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4794 | RETPUSHNO; |
4795 | } | |
365c4e3d RGS |
4796 | else if (hv_exists_ent(seen_this, |
4797 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4798 | hv_exists_ent(seen_other, | |
4799 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4800 | { |
4801 | if (*this_elem != *other_elem) | |
4802 | RETPUSHNO; | |
4803 | } | |
4804 | else { | |
04fe65b0 RGS |
4805 | (void)hv_store_ent(seen_this, |
4806 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4807 | &PL_sv_undef, 0); | |
4808 | (void)hv_store_ent(seen_other, | |
4809 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4810 | &PL_sv_undef, 0); | |
0d863452 | 4811 | PUSHs(*other_elem); |
a566f585 | 4812 | PUSHs(*this_elem); |
0d863452 RH |
4813 | |
4814 | PUTBACK; | |
d7c0d282 | 4815 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
be88a5c3 | 4816 | (void) do_smartmatch(seen_this, seen_other, 0); |
0d863452 | 4817 | SPAGAIN; |
d7c0d282 | 4818 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4819 | |
4820 | if (!SvTRUEx(POPs)) | |
4821 | RETPUSHNO; | |
4822 | } | |
4823 | } | |
4824 | RETPUSHYES; | |
4825 | } | |
4826 | } | |
a566f585 | 4827 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4828 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4829 | sm_regex_array: |
4830 | { | |
4831 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
b9f2b683 | 4832 | const SSize_t this_len = av_tindex(MUTABLE_AV(SvRV(e))); |
c70927a6 | 4833 | SSize_t i; |
0d863452 | 4834 | |
ea0c2dbd RGS |
4835 | for(i = 0; i <= this_len; ++i) { |
4836 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4837 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4838 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4839 | destroy_matcher(matcher); | |
4840 | RETPUSHYES; | |
4841 | } | |
0d863452 | 4842 | } |
ea0c2dbd RGS |
4843 | destroy_matcher(matcher); |
4844 | RETPUSHNO; | |
0d863452 | 4845 | } |
0d863452 | 4846 | } |
015eb7b9 RGS |
4847 | else if (!SvOK(d)) { |
4848 | /* undef ~~ array */ | |
b9f2b683 | 4849 | const SSize_t this_len = av_tindex(MUTABLE_AV(SvRV(e))); |
c70927a6 | 4850 | SSize_t i; |
0d863452 | 4851 | |
d7c0d282 | 4852 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4853 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4854 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4855 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4856 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4857 | RETPUSHYES; |
4858 | } | |
4859 | RETPUSHNO; | |
4860 | } | |
015eb7b9 | 4861 | else { |
41e726ac RGS |
4862 | sm_any_array: |
4863 | { | |
c70927a6 | 4864 | SSize_t i; |
b9f2b683 | 4865 | const SSize_t this_len = av_tindex(MUTABLE_AV(SvRV(e))); |
0d863452 | 4866 | |
d7c0d282 | 4867 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4868 | for (i = 0; i <= this_len; ++i) { |
4869 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4870 | if (!svp) | |
4871 | continue; | |
015eb7b9 | 4872 | |
41e726ac RGS |
4873 | PUSHs(d); |
4874 | PUSHs(*svp); | |
4875 | PUTBACK; | |
4876 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4877 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
be88a5c3 | 4878 | (void) do_smartmatch(NULL, NULL, 1); |
41e726ac | 4879 | SPAGAIN; |
d7c0d282 | 4880 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4881 | if (SvTRUEx(POPs)) |
4882 | RETPUSHYES; | |
4883 | } | |
4884 | RETPUSHNO; | |
0d863452 | 4885 | } |
0d863452 RH |
4886 | } |
4887 | } | |
b0138e99 | 4888 | /* ~~ qr// */ |
a566f585 | 4889 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4890 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4891 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4892 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4893 | goto sm_regex_hash; |
4894 | } | |
4895 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4896 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4897 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4898 | goto sm_regex_array; |
4899 | } | |
4900 | else { | |
4901 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4902 | |
d7c0d282 | 4903 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4904 | PUTBACK; |
4905 | PUSHs(matcher_matches_sv(matcher, d) | |
4906 | ? &PL_sv_yes | |
4907 | : &PL_sv_no); | |
4908 | destroy_matcher(matcher); | |
4909 | RETURN; | |
4910 | } | |
0d863452 | 4911 | } |
b0138e99 | 4912 | /* ~~ scalar */ |
2c9d2554 RGS |
4913 | /* See if there is overload magic on left */ |
4914 | else if (object_on_left && SvAMAGIC(d)) { | |
4915 | SV *tmpsv; | |
d7c0d282 DM |
4916 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4917 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4918 | PUSHs(d); PUSHs(e); |
4919 | PUTBACK; | |
4920 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4921 | if (tmpsv) { | |
4922 | SPAGAIN; | |
4923 | (void)POPs; | |
4924 | SETs(tmpsv); | |
4925 | RETURN; | |
4926 | } | |
4927 | SP -= 2; | |
d7c0d282 | 4928 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4929 | goto sm_any_scalar; |
4930 | } | |
fb51372e RGS |
4931 | else if (!SvOK(d)) { |
4932 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4933 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4934 | RETPUSHNO; |
4935 | } | |
2c9d2554 RGS |
4936 | else |
4937 | sm_any_scalar: | |
4938 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4939 | DEBUG_M(if (SvNIOK(e)) |
4940 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4941 | else | |
4942 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4943 | ); | |
33ed63a2 | 4944 | /* numeric comparison */ |
0d863452 RH |
4945 | PUSHs(d); PUSHs(e); |
4946 | PUTBACK; | |
a98fe34d | 4947 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
897d3989 | 4948 | (void) Perl_pp_i_eq(aTHX); |
0d863452 | 4949 | else |
897d3989 | 4950 | (void) Perl_pp_eq(aTHX); |
0d863452 RH |
4951 | SPAGAIN; |
4952 | if (SvTRUEx(POPs)) | |
4953 | RETPUSHYES; | |
4954 | else | |
4955 | RETPUSHNO; | |
4956 | } | |
4957 | ||
4958 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4959 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4960 | PUSHs(d); PUSHs(e); |
4961 | PUTBACK; | |
897d3989 | 4962 | return Perl_pp_seq(aTHX); |
0d863452 RH |
4963 | } |
4964 | ||
4965 | PP(pp_enterwhen) | |
4966 | { | |
20b7effb | 4967 | dSP; |
eb578fdb | 4968 | PERL_CONTEXT *cx; |
0d863452 RH |
4969 | const I32 gimme = GIMME_V; |
4970 | ||
4971 | /* This is essentially an optimization: if the match | |
4972 | fails, we don't want to push a context and then | |
4973 | pop it again right away, so we skip straight | |
4974 | to the op that follows the leavewhen. | |
25b991bf | 4975 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4976 | */ |
4977 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4978 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4979 | |
c08f093b | 4980 | ENTER_with_name("when"); |
0d863452 RH |
4981 | SAVETMPS; |
4982 | ||
4983 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4984 | PUSHWHEN(cx); | |
4985 | ||
4986 | RETURN; | |
4987 | } | |
4988 | ||
4989 | PP(pp_leavewhen) | |
4990 | { | |
20b7effb | 4991 | dSP; |
c08f093b | 4992 | I32 cxix; |
eb578fdb | 4993 | PERL_CONTEXT *cx; |
c08f093b | 4994 | I32 gimme; |
0d863452 RH |
4995 | SV **newsp; |
4996 | PMOP *newpm; | |
4997 | ||
c08f093b VP |
4998 | cxix = dopoptogiven(cxstack_ix); |
4999 | if (cxix < 0) | |
fc7debfb FC |
5000 | /* diag_listed_as: Can't "when" outside a topicalizer */ |
5001 | DIE(aTHX_ "Can't \"%s\" outside a topicalizer", | |
5002 | PL_op->op_flags & OPf_SPECIAL ? "default" : "when"); | |
c08f093b | 5003 | |
0d863452 RH |
5004 | POPBLOCK(cx,newpm); |
5005 | assert(CxTYPE(cx) == CXt_WHEN); | |
5006 | ||
c08f093b | 5007 | TAINT_NOT; |
2ec7f6f2 FC |
5008 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, |
5009 | SVs_PADTMP|SVs_TEMP, FALSE); | |
0d863452 RH |
5010 | PL_curpm = newpm; /* pop $1 et al */ |
5011 | ||
c08f093b VP |
5012 | LEAVE_with_name("when"); |
5013 | ||
5014 | if (cxix < cxstack_ix) | |
5015 | dounwind(cxix); | |
5016 | ||
5017 | cx = &cxstack[cxix]; | |
5018 | ||
5019 | if (CxFOREACH(cx)) { | |
5020 | /* clear off anything above the scope we're re-entering */ | |
5021 | I32 inner = PL_scopestack_ix; | |
5022 | ||
5023 | TOPBLOCK(cx); | |
5024 | if (PL_scopestack_ix < inner) | |
5025 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
5026 | PL_curcop = cx->blk_oldcop; | |
5027 | ||
47c9d59f | 5028 | PERL_ASYNC_CHECK(); |
c08f093b VP |
5029 | return cx->blk_loop.my_op->op_nextop; |
5030 | } | |
47c9d59f NC |
5031 | else { |
5032 | PERL_ASYNC_CHECK(); | |
b1b5a4ae | 5033 | RETURNOP(cx->blk_givwhen.leave_op); |
47c9d59f | 5034 | } |
0d863452 RH |
5035 | } |
5036 | ||
5037 | PP(pp_continue) | |
5038 | { | |
20b7effb | 5039 | dSP; |
0d863452 | 5040 | I32 cxix; |
eb578fdb | 5041 | PERL_CONTEXT *cx; |
c08f093b VP |
5042 | I32 gimme; |
5043 | SV **newsp; | |
5044 | PMOP *newpm; | |
7be5bd17 FR |
5045 | |
5046 | PERL_UNUSED_VAR(gimme); | |
0d863452 RH |
5047 | |
5048 | cxix = dopoptowhen(cxstack_ix); | |
5049 | if (cxix < 0) | |
5050 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
c08f093b | 5051 | |
0d863452 RH |
5052 | if (cxix < cxstack_ix) |
5053 | dounwind(cxix); | |
5054 | ||
c08f093b VP |
5055 | POPBLOCK(cx,newpm); |
5056 | assert(CxTYPE(cx) == CXt_WHEN); | |
5057 | ||
5058 | SP = newsp; | |
5059 | PL_curpm = newpm; /* pop $1 et al */ | |
5060 | ||
5061 | LEAVE_with_name("when"); | |
5062 | RETURNOP(cx->blk_givwhen.leave_op->op_next); | |
0d863452 RH |
5063 | } |
5064 | ||
5065 | PP(pp_break) | |
5066 | { | |
0d863452 | 5067 | I32 cxix; |
eb578fdb | 5068 | PERL_CONTEXT *cx; |
25b991bf | 5069 | |
0d863452 | 5070 | cxix = dopoptogiven(cxstack_ix); |
c08f093b VP |
5071 | if (cxix < 0) |
5072 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
5073 | ||
5074 | cx = &cxstack[cxix]; | |
5075 | if (CxFOREACH(cx)) | |
0d863452 RH |
5076 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); |
5077 | ||
5078 | if (cxix < cxstack_ix) | |
5079 | dounwind(cxix); | |
0d863452 | 5080 | |
0787ea8a VP |
5081 | /* Restore the sp at the time we entered the given block */ |
5082 | TOPBLOCK(cx); | |
5083 | ||
c08f093b | 5084 | return cx->blk_givwhen.leave_op; |
0d863452 RH |
5085 | } |
5086 | ||
74e0ddf7 | 5087 | static MAGIC * |
cea2e8a9 | 5088 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
5089 | { |
5090 | STRLEN len; | |
eb578fdb KW |
5091 | char *s = SvPV(sv, len); |
5092 | char *send; | |
5093 | char *base = NULL; /* start of current field */ | |
5094 | I32 skipspaces = 0; /* number of contiguous spaces seen */ | |
086b26f3 DM |
5095 | bool noblank = FALSE; /* ~ or ~~ seen on this line */ |
5096 | bool repeat = FALSE; /* ~~ seen on this line */ | |
5097 | bool postspace = FALSE; /* a text field may need right padding */ | |
dea28490 | 5098 | U32 *fops; |
eb578fdb | 5099 | U32 *fpc; |
086b26f3 | 5100 | U32 *linepc = NULL; /* position of last FF_LINEMARK */ |
eb578fdb | 5101 | I32 arg; |
086b26f3 DM |
5102 | bool ischop; /* it's a ^ rather than a @ */ |
5103 | bool unchopnum = FALSE; /* at least one @ (i.e. non-chop) num field seen */ | |
a1b95068 | 5104 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ |
3808a683 DM |
5105 | MAGIC *mg = NULL; |
5106 | SV *sv_copy; | |
a0d0e21e | 5107 | |
7918f24d NC |
5108 | PERL_ARGS_ASSERT_DOPARSEFORM; |
5109 | ||
55497cff | 5110 | if (len == 0) |
cea2e8a9 | 5111 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 5112 | |
3808a683 DM |
5113 | if (SvTYPE(sv) >= SVt_PVMG) { |
5114 | /* This might, of course, still return NULL. */ | |
5115 | mg = mg_find(sv, PERL_MAGIC_fm); | |
5116 | } else { | |
5117 | sv_upgrade(sv, SVt_PVMG); | |
5118 | } | |
5119 | ||
5120 | if (mg) { | |
5121 | /* still the same as previously-compiled string? */ | |
5122 | SV *old = mg->mg_obj; | |
5123 | if ( !(!!SvUTF8(old) ^ !!SvUTF8(sv)) | |
5124 | && len == SvCUR(old) | |
5125 | && strnEQ(SvPVX(old), SvPVX(sv), len) | |
b57b1734 DM |
5126 | ) { |
5127 | DEBUG_f(PerlIO_printf(Perl_debug_log,"Re-using compiled format\n")); | |
3808a683 | 5128 | return mg; |
b57b1734 | 5129 | } |
3808a683 | 5130 | |
b57b1734 | 5131 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Re-compiling format\n")); |
3808a683 DM |
5132 | Safefree(mg->mg_ptr); |
5133 | mg->mg_ptr = NULL; | |
5134 | SvREFCNT_dec(old); | |
5135 | mg->mg_obj = NULL; | |
5136 | } | |
b57b1734 DM |
5137 | else { |
5138 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Compiling format\n")); | |
3808a683 | 5139 | mg = sv_magicext(sv, NULL, PERL_MAGIC_fm, &PL_vtbl_fm, NULL, 0); |
b57b1734 | 5140 | } |
3808a683 DM |
5141 | |
5142 | sv_copy = newSVpvn_utf8(s, len, SvUTF8(sv)); | |
5143 | s = SvPV(sv_copy, len); /* work on the copy, not the original */ | |
5144 | send = s + len; | |
5145 | ||
5146 | ||
815f25c6 DM |
5147 | /* estimate the buffer size needed */ |
5148 | for (base = s; s <= send; s++) { | |
a1b95068 | 5149 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
5150 | maxops += 10; |
5151 | } | |
5152 | s = base; | |
c445ea15 | 5153 | base = NULL; |
815f25c6 | 5154 | |
a02a5408 | 5155 | Newx(fops, maxops, U32); |
a0d0e21e LW |
5156 | fpc = fops; |
5157 | ||
5158 | if (s < send) { | |
5159 | linepc = fpc; | |
5160 | *fpc++ = FF_LINEMARK; | |
5161 | noblank = repeat = FALSE; | |
5162 | base = s; | |
5163 | } | |
5164 | ||
5165 | while (s <= send) { | |
5166 | switch (*s++) { | |
5167 | default: | |
5168 | skipspaces = 0; | |
5169 | continue; | |
5170 | ||
5171 | case '~': | |
5172 | if (*s == '~') { | |
5173 | repeat = TRUE; | |
b57b1734 DM |
5174 | skipspaces++; |
5175 | s++; | |
a0d0e21e LW |
5176 | } |
5177 | noblank = TRUE; | |
924ba076 | 5178 | /* FALLTHROUGH */ |
a0d0e21e LW |
5179 | case ' ': case '\t': |
5180 | skipspaces++; | |
5181 | continue; | |
a1b95068 WL |
5182 | case 0: |
5183 | if (s < send) { | |
5184 | skipspaces = 0; | |
5185 | continue; | |
5186 | } /* else FALL THROUGH */ | |
5187 | case '\n': | |
a0d0e21e LW |
5188 | arg = s - base; |
5189 | skipspaces++; | |
5190 | arg -= skipspaces; | |
5191 | if (arg) { | |
5f05dabc | 5192 | if (postspace) |
a0d0e21e | 5193 | *fpc++ = FF_SPACE; |
a0d0e21e | 5194 | *fpc++ = FF_LITERAL; |
76912796 | 5195 | *fpc++ = (U32)arg; |
a0d0e21e | 5196 | } |
5f05dabc | 5197 | postspace = FALSE; |
a0d0e21e LW |
5198 | if (s <= send) |
5199 | skipspaces--; | |
5200 | if (skipspaces) { | |
5201 | *fpc++ = FF_SKIP; | |
76912796 | 5202 | *fpc++ = (U32)skipspaces; |
a0d0e21e LW |
5203 | } |
5204 | skipspaces = 0; | |
5205 | if (s <= send) | |
5206 | *fpc++ = FF_NEWLINE; | |
5207 | if (noblank) { | |
5208 | *fpc++ = FF_BLANK; | |
5209 | if (repeat) | |
5210 | arg = fpc - linepc + 1; | |
5211 | else | |
5212 | arg = 0; | |
76912796 | 5213 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5214 | } |
5215 | if (s < send) { | |
5216 | linepc = fpc; | |
5217 | *fpc++ = FF_LINEMARK; | |
5218 | noblank = repeat = FALSE; | |
5219 | base = s; | |
5220 | } | |
5221 | else | |
5222 | s++; | |
5223 | continue; | |
5224 | ||
5225 | case '@': | |
5226 | case '^': | |
5227 | ischop = s[-1] == '^'; | |
5228 | ||
5229 | if (postspace) { | |
5230 | *fpc++ = FF_SPACE; | |
5231 | postspace = FALSE; | |
5232 | } | |
5233 | arg = (s - base) - 1; | |
5234 | if (arg) { | |
5235 | *fpc++ = FF_LITERAL; | |
76912796 | 5236 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5237 | } |
5238 | ||
5239 | base = s - 1; | |
5240 | *fpc++ = FF_FETCH; | |
086b26f3 | 5241 | if (*s == '*') { /* @* or ^* */ |
a0d0e21e | 5242 | s++; |
a1b95068 WL |
5243 | *fpc++ = 2; /* skip the @* or ^* */ |
5244 | if (ischop) { | |
5245 | *fpc++ = FF_LINESNGL; | |
5246 | *fpc++ = FF_CHOP; | |
5247 | } else | |
5248 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e | 5249 | } |
086b26f3 | 5250 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { /* @###, ^### */ |
a701009a | 5251 | arg = ischop ? FORM_NUM_BLANK : 0; |
a0d0e21e LW |
5252 | base = s - 1; |
5253 | while (*s == '#') | |
5254 | s++; | |
5255 | if (*s == '.') { | |
06b5626a | 5256 | const char * const f = ++s; |
a0d0e21e LW |
5257 | while (*s == '#') |
5258 | s++; | |
a701009a | 5259 | arg |= FORM_NUM_POINT + (s - f); |
a0d0e21e LW |
5260 | } |
5261 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5262 | *fpc++ = FF_DECIMAL; | |
76912796 | 5263 | *fpc++ = (U32)arg; |
a1b95068 | 5264 | unchopnum |= ! ischop; |
784707d5 JP |
5265 | } |
5266 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
a701009a | 5267 | arg = ischop ? FORM_NUM_BLANK : 0; |
784707d5 JP |
5268 | base = s - 1; |
5269 | s++; /* skip the '0' first */ | |
5270 | while (*s == '#') | |
5271 | s++; | |
5272 | if (*s == '.') { | |
06b5626a | 5273 | const char * const f = ++s; |
784707d5 JP |
5274 | while (*s == '#') |
5275 | s++; | |
a701009a | 5276 | arg |= FORM_NUM_POINT + (s - f); |
784707d5 JP |
5277 | } |
5278 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5279 | *fpc++ = FF_0DECIMAL; | |
76912796 | 5280 | *fpc++ = (U32)arg; |
a1b95068 | 5281 | unchopnum |= ! ischop; |
a0d0e21e | 5282 | } |
086b26f3 | 5283 | else { /* text field */ |
a0d0e21e LW |
5284 | I32 prespace = 0; |
5285 | bool ismore = FALSE; | |
5286 | ||
5287 | if (*s == '>') { | |
5288 | while (*++s == '>') ; | |
5289 | prespace = FF_SPACE; | |
5290 | } | |
5291 | else if (*s == '|') { | |
5292 | while (*++s == '|') ; | |
5293 | prespace = FF_HALFSPACE; | |
5294 | postspace = TRUE; | |
5295 | } | |
5296 | else { | |
5297 | if (*s == '<') | |
5298 | while (*++s == '<') ; | |
5299 | postspace = TRUE; | |
5300 | } | |
5301 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
5302 | s += 3; | |
5303 | ismore = TRUE; | |
5304 | } | |
5305 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5306 | ||
5307 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
5308 | ||
5309 | if (prespace) | |
76912796 | 5310 | *fpc++ = (U32)prespace; /* add SPACE or HALFSPACE */ |
a0d0e21e LW |
5311 | *fpc++ = FF_ITEM; |
5312 | if (ismore) | |
5313 | *fpc++ = FF_MORE; | |
5314 | if (ischop) | |
5315 | *fpc++ = FF_CHOP; | |
5316 | } | |
5317 | base = s; | |
5318 | skipspaces = 0; | |
5319 | continue; | |
5320 | } | |
5321 | } | |
5322 | *fpc++ = FF_END; | |
5323 | ||
815f25c6 | 5324 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e | 5325 | arg = fpc - fops; |
74e0ddf7 | 5326 | |
3808a683 | 5327 | mg->mg_ptr = (char *) fops; |
74e0ddf7 | 5328 | mg->mg_len = arg * sizeof(U32); |
3808a683 DM |
5329 | mg->mg_obj = sv_copy; |
5330 | mg->mg_flags |= MGf_REFCOUNTED; | |
a1b95068 | 5331 | |
bfed75c6 | 5332 | if (unchopnum && repeat) |
75f63940 | 5333 | Perl_die(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
74e0ddf7 NC |
5334 | |
5335 | return mg; | |
a1b95068 WL |
5336 | } |
5337 | ||
5338 | ||
5339 | STATIC bool | |
5340 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
5341 | { | |
5342 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
5343 | NV pwr = 1; | |
5344 | NV eps = 0.5; | |
5345 | bool res = FALSE; | |
5346 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
5347 | ||
a701009a | 5348 | if (frcsize & FORM_NUM_POINT) |
a1b95068 | 5349 | intsize--; |
a701009a | 5350 | frcsize &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
a1b95068 WL |
5351 | intsize -= frcsize; |
5352 | ||
5353 | while (intsize--) pwr *= 10.0; | |
5354 | while (frcsize--) eps /= 10.0; | |
5355 | ||
5356 | if( value >= 0 ){ | |
5357 | if (value + eps >= pwr) | |
5358 | res = TRUE; | |
5359 | } else { | |
5360 | if (value - eps <= -pwr) | |
5361 | res = TRUE; | |
5362 | } | |
5363 | return res; | |
a0d0e21e | 5364 | } |
4e35701f | 5365 | |
bbed91b5 | 5366 | static I32 |
0bd48802 | 5367 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 5368 | { |
0bd48802 | 5369 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 5370 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
5371 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
5372 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5373 | int status = 0; |
ec0b63d7 | 5374 | SV *upstream; |
941a98a0 | 5375 | STRLEN got_len; |
162177c1 Z |
5376 | char *got_p = NULL; |
5377 | char *prune_from = NULL; | |
34113e50 | 5378 | bool read_from_cache = FALSE; |
bb7a0f54 | 5379 | STRLEN umaxlen; |
d60d2019 | 5380 | SV *err = NULL; |
bb7a0f54 | 5381 | |
7918f24d NC |
5382 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5383 | ||
bb7a0f54 MHM |
5384 | assert(maxlen >= 0); |
5385 | umaxlen = maxlen; | |
5675696b | 5386 | |
bbed91b5 KF |
5387 | /* I was having segfault trouble under Linux 2.2.5 after a |
5388 | parse error occured. (Had to hack around it with a test | |
13765c85 | 5389 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5390 | not sure where the trouble is yet. XXX */ |
5391 | ||
4464f08e NC |
5392 | { |
5393 | SV *const cache = datasv; | |
937b367d NC |
5394 | if (SvOK(cache)) { |
5395 | STRLEN cache_len; | |
5396 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5397 | STRLEN take = 0; |
5398 | ||
bb7a0f54 | 5399 | if (umaxlen) { |
941a98a0 NC |
5400 | /* Running in block mode and we have some cached data already. |
5401 | */ | |
bb7a0f54 | 5402 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5403 | /* In fact, so much data we don't even need to call |
5404 | filter_read. */ | |
bb7a0f54 | 5405 | take = umaxlen; |
941a98a0 NC |
5406 | } |
5407 | } else { | |
10edeb5d JH |
5408 | const char *const first_nl = |
5409 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5410 | if (first_nl) { |
5411 | take = first_nl + 1 - cache_p; | |
5412 | } | |
5413 | } | |
5414 | if (take) { | |
5415 | sv_catpvn(buf_sv, cache_p, take); | |
5416 | sv_chop(cache, cache_p + take); | |
486ec47a | 5417 | /* Definitely not EOF */ |
937b367d NC |
5418 | return 1; |
5419 | } | |
941a98a0 | 5420 | |
937b367d | 5421 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5422 | if (umaxlen) { |
5423 | umaxlen -= cache_len; | |
941a98a0 | 5424 | } |
937b367d | 5425 | SvOK_off(cache); |
34113e50 | 5426 | read_from_cache = TRUE; |
937b367d NC |
5427 | } |
5428 | } | |
ec0b63d7 | 5429 | |
34113e50 NC |
5430 | /* Filter API says that the filter appends to the contents of the buffer. |
5431 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5432 | then clearly what it contains is already filtered by this filter, so we | |
5433 | don't want to pass it in a second time. | |
5434 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5435 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5436 | ? sv_newmortal() : buf_sv; | |
5437 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5438 | |
bbed91b5 | 5439 | if (filter_has_file) { |
67e70b33 | 5440 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5441 | } |
5442 | ||
34113e50 | 5443 | if (filter_sub && status >= 0) { |
39644a26 | 5444 | dSP; |
bbed91b5 KF |
5445 | int count; |
5446 | ||
d343c3ef | 5447 | ENTER_with_name("call_filter_sub"); |
55b5114f | 5448 | SAVE_DEFSV; |
bbed91b5 KF |
5449 | SAVETMPS; |
5450 | EXTEND(SP, 2); | |
5451 | ||
414bf5ae | 5452 | DEFSV_set(upstream); |
bbed91b5 | 5453 | PUSHMARK(SP); |
6e449a3a | 5454 | mPUSHi(0); |
bbed91b5 KF |
5455 | if (filter_state) { |
5456 | PUSHs(filter_state); | |
5457 | } | |
5458 | PUTBACK; | |
d60d2019 | 5459 | count = call_sv(filter_sub, G_SCALAR|G_EVAL); |
bbed91b5 KF |
5460 | SPAGAIN; |
5461 | ||
5462 | if (count > 0) { | |
5463 | SV *out = POPs; | |
2e8409ad | 5464 | SvGETMAGIC(out); |
bbed91b5 | 5465 | if (SvOK(out)) { |
941a98a0 | 5466 | status = SvIV(out); |
bbed91b5 | 5467 | } |
eed484f9 DD |
5468 | else { |
5469 | SV * const errsv = ERRSV; | |
5470 | if (SvTRUE_NN(errsv)) | |
5471 | err = newSVsv(errsv); | |
d60d2019 | 5472 | } |
bbed91b5 KF |
5473 | } |
5474 | ||
5475 | PUTBACK; | |
5476 | FREETMPS; | |
d343c3ef | 5477 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5478 | } |
5479 | ||
536ac391 FC |
5480 | if (SvGMAGICAL(upstream)) { |
5481 | mg_get(upstream); | |
5482 | if (upstream == buf_sv) mg_free(buf_sv); | |
5483 | } | |
b68108d9 | 5484 | if (SvIsCOW(upstream)) sv_force_normal(upstream); |
d60d2019 | 5485 | if(!err && SvOK(upstream)) { |
536ac391 | 5486 | got_p = SvPV_nomg(upstream, got_len); |
bb7a0f54 MHM |
5487 | if (umaxlen) { |
5488 | if (got_len > umaxlen) { | |
5489 | prune_from = got_p + umaxlen; | |
937b367d | 5490 | } |
941a98a0 | 5491 | } else { |
162177c1 | 5492 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5493 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5494 | /* There's a second line here... */ | |
5495 | prune_from = first_nl + 1; | |
937b367d | 5496 | } |
937b367d NC |
5497 | } |
5498 | } | |
d60d2019 | 5499 | if (!err && prune_from) { |
941a98a0 NC |
5500 | /* Oh. Too long. Stuff some in our cache. */ |
5501 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5502 | SV *const cache = datasv; |
941a98a0 | 5503 | |
4464f08e | 5504 | if (SvOK(cache)) { |
941a98a0 NC |
5505 | /* Cache should be empty. */ |
5506 | assert(!SvCUR(cache)); | |
5507 | } | |
5508 | ||
5509 | sv_setpvn(cache, prune_from, cached_len); | |
5510 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5511 | "If it breaks, you get to keep both parts" | |
5512 | (Your code is broken if you don't put them back together again | |
5513 | before something notices.) */ | |
5514 | if (SvUTF8(upstream)) { | |
5515 | SvUTF8_on(cache); | |
5516 | } | |
00752fe1 FC |
5517 | if (SvPOK(upstream)) SvCUR_set(upstream, got_len - cached_len); |
5518 | else | |
5519 | /* Cannot just use sv_setpvn, as that could free the buffer | |
5520 | before we have a chance to assign it. */ | |
5521 | sv_usepvn(upstream, savepvn(got_p, got_len - cached_len), | |
5522 | got_len - cached_len); | |
162177c1 | 5523 | *prune_from = 0; |
941a98a0 NC |
5524 | /* Can't yet be EOF */ |
5525 | if (status == 0) | |
5526 | status = 1; | |
5527 | } | |
937b367d | 5528 | |
34113e50 NC |
5529 | /* If they are at EOF but buf_sv has something in it, then they may never |
5530 | have touched the SV upstream, so it may be undefined. If we naively | |
5531 | concatenate it then we get a warning about use of uninitialised value. | |
5532 | */ | |
d60d2019 | 5533 | if (!err && upstream != buf_sv && |
dc423e96 | 5534 | SvOK(upstream)) { |
536ac391 | 5535 | sv_catsv_nomg(buf_sv, upstream); |
937b367d | 5536 | } |
ae2c96ed | 5537 | else if (SvOK(upstream)) (void)SvPV_force_nolen(buf_sv); |
937b367d | 5538 | |
941a98a0 | 5539 | if (status <= 0) { |
bbed91b5 | 5540 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5541 | if (filter_state) { |
5542 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5543 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5544 | } |
5545 | if (filter_sub) { | |
5546 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5547 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5548 | } |
0bd48802 | 5549 | filter_del(S_run_user_filter); |
bbed91b5 | 5550 | } |
d60d2019 JL |
5551 | |
5552 | if (err) | |
5553 | croak_sv(err); | |
5554 | ||
34113e50 NC |
5555 | if (status == 0 && read_from_cache) { |
5556 | /* If we read some data from the cache (and by getting here it implies | |
5557 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5558 | report that to our caller. */ | |
5559 | return 1; | |
5560 | } | |
941a98a0 | 5561 | return status; |
bbed91b5 | 5562 | } |
84d4ea48 | 5563 | |
241d1a3b NC |
5564 | /* |
5565 | * Local variables: | |
5566 | * c-indentation-style: bsd | |
5567 | * c-basic-offset: 4 | |
14d04a33 | 5568 | * indent-tabs-mode: nil |
241d1a3b NC |
5569 | * End: |
5570 | * | |
14d04a33 | 5571 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 5572 | */ |