Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a0d0e21e LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * Now far ahead the Road has gone, |
13 | * And I must follow, if I can, | |
14 | * Pursuing it with eager feet, | |
15 | * Until it joins some larger way | |
16 | * Where many paths and errands meet. | |
17 | * And whither then? I cannot say. | |
18 | * | |
19 | * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"] | |
a0d0e21e LW |
20 | */ |
21 | ||
166f8a29 DM |
22 | /* This file contains control-oriented pp ("push/pop") functions that |
23 | * execute the opcodes that make up a perl program. A typical pp function | |
24 | * expects to find its arguments on the stack, and usually pushes its | |
25 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
26 | * contains a pointer to the relevant pp_foo() function. | |
27 | * | |
28 | * Control-oriented means things like pp_enteriter() and pp_next(), which | |
29 | * alter the flow of control of the program. | |
30 | */ | |
31 | ||
32 | ||
a0d0e21e | 33 | #include "EXTERN.h" |
864dbfa3 | 34 | #define PERL_IN_PP_CTL_C |
a0d0e21e LW |
35 | #include "perl.h" |
36 | ||
54310121 | 37 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 38 | |
94fcd414 NC |
39 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
40 | ||
a0d0e21e LW |
41 | PP(pp_wantarray) |
42 | { | |
97aff369 | 43 | dVAR; |
39644a26 | 44 | dSP; |
a0d0e21e | 45 | I32 cxix; |
93f0bc49 | 46 | const PERL_CONTEXT *cx; |
a0d0e21e LW |
47 | EXTEND(SP, 1); |
48 | ||
93f0bc49 FC |
49 | if (PL_op->op_private & OPpOFFBYONE) { |
50 | if (!(cx = caller_cx(1,NULL))) RETPUSHUNDEF; | |
51 | } | |
52 | else { | |
53 | cxix = dopoptosub(cxstack_ix); | |
54 | if (cxix < 0) | |
a0d0e21e | 55 | RETPUSHUNDEF; |
93f0bc49 FC |
56 | cx = &cxstack[cxix]; |
57 | } | |
a0d0e21e | 58 | |
93f0bc49 | 59 | switch (cx->blk_gimme) { |
54310121 | 60 | case G_ARRAY: |
a0d0e21e | 61 | RETPUSHYES; |
54310121 | 62 | case G_SCALAR: |
a0d0e21e | 63 | RETPUSHNO; |
54310121 | 64 | default: |
65 | RETPUSHUNDEF; | |
66 | } | |
a0d0e21e LW |
67 | } |
68 | ||
2cd61cdb IZ |
69 | PP(pp_regcreset) |
70 | { | |
97aff369 | 71 | dVAR; |
0b4182de | 72 | TAINT_NOT; |
2cd61cdb IZ |
73 | return NORMAL; |
74 | } | |
75 | ||
b3eb6a9b GS |
76 | PP(pp_regcomp) |
77 | { | |
97aff369 | 78 | dVAR; |
39644a26 | 79 | dSP; |
eb578fdb | 80 | PMOP *pm = (PMOP*)cLOGOP->op_other; |
9f141731 | 81 | SV **args; |
df787a7b | 82 | int nargs; |
84679df5 | 83 | REGEXP *re = NULL; |
9f141731 DM |
84 | REGEXP *new_re; |
85 | const regexp_engine *eng; | |
76ac488f | 86 | bool is_bare_re; |
bfed75c6 | 87 | |
df787a7b DM |
88 | if (PL_op->op_flags & OPf_STACKED) { |
89 | dMARK; | |
90 | nargs = SP - MARK; | |
91 | args = ++MARK; | |
92 | } | |
93 | else { | |
94 | nargs = 1; | |
95 | args = SP; | |
96 | } | |
97 | ||
4b5a0d1c | 98 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 99 | #if defined(USE_ITHREADS) |
131b3ad0 | 100 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
df787a7b | 101 | SP = args-1; |
131b3ad0 DM |
102 | RETURN; |
103 | } | |
513629ba | 104 | #endif |
d4b87e75 | 105 | |
9f141731 DM |
106 | re = PM_GETRE(pm); |
107 | assert (re != (REGEXP*) &PL_sv_undef); | |
108 | eng = re ? RX_ENGINE(re) : current_re_engine(); | |
109 | ||
3c13cae6 DM |
110 | new_re = (eng->op_comp |
111 | ? eng->op_comp | |
112 | : &Perl_re_op_compile | |
113 | )(aTHX_ args, nargs, pm->op_code_list, eng, re, | |
346d3070 | 114 | &is_bare_re, |
514a91f1 | 115 | (pm->op_pmflags & RXf_PMf_COMPILETIME), |
a5ae69f0 DM |
116 | pm->op_pmflags | |
117 | (PL_op->op_flags & OPf_SPECIAL ? PMf_USE_RE_EVAL : 0)); | |
346d3070 | 118 | if (pm->op_pmflags & PMf_HAS_CV) |
8d919b0a | 119 | ReANY(new_re)->qr_anoncv |
9fe3265f | 120 | = (CV*) SvREFCNT_inc(PAD_SV(PL_op->op_targ)); |
9f141731 DM |
121 | |
122 | if (is_bare_re) { | |
123 | REGEXP *tmp; | |
124 | /* The match's LHS's get-magic might need to access this op's regexp | |
125 | (e.g. $' =~ /$re/ while foo; see bug 70764). So we must call | |
126 | get-magic now before we replace the regexp. Hopefully this hack can | |
127 | be replaced with the approach described at | |
128 | http://www.nntp.perl.org/group/perl.perl5.porters/2007/03/msg122415.html | |
129 | some day. */ | |
130 | if (pm->op_type == OP_MATCH) { | |
131 | SV *lhs; | |
284167a5 | 132 | const bool was_tainted = TAINT_get; |
9f141731 DM |
133 | if (pm->op_flags & OPf_STACKED) |
134 | lhs = args[-1]; | |
135 | else if (pm->op_private & OPpTARGET_MY) | |
136 | lhs = PAD_SV(pm->op_targ); | |
137 | else lhs = DEFSV; | |
138 | SvGETMAGIC(lhs); | |
139 | /* Restore the previous value of PL_tainted (which may have been | |
140 | modified by get-magic), to avoid incorrectly setting the | |
284167a5 S |
141 | RXf_TAINTED flag with RX_TAINT_on further down. */ |
142 | TAINT_set(was_tainted); | |
df787a7b | 143 | } |
9f141731 DM |
144 | tmp = reg_temp_copy(NULL, new_re); |
145 | ReREFCNT_dec(new_re); | |
146 | new_re = tmp; | |
df787a7b | 147 | } |
9f141731 DM |
148 | if (re != new_re) { |
149 | ReREFCNT_dec(re); | |
150 | PM_SETRE(pm, new_re); | |
c277df42 | 151 | } |
d4b87e75 | 152 | |
72311751 | 153 | #ifndef INCOMPLETE_TAINTS |
284167a5 | 154 | if (TAINTING_get && TAINT_get) { |
9f141731 | 155 | SvTAINTED_on((SV*)new_re); |
284167a5 | 156 | RX_TAINT_on(new_re); |
72311751 GS |
157 | } |
158 | #endif | |
159 | ||
c737faaf YO |
160 | #if !defined(USE_ITHREADS) |
161 | /* can't change the optree at runtime either */ | |
162 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
9f141731 DM |
163 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
164 | pm = PL_curpm; | |
a0d0e21e | 165 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 166 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 167 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 168 | } |
c737faaf | 169 | #endif |
9f141731 | 170 | |
df787a7b | 171 | SP = args-1; |
a0d0e21e LW |
172 | RETURN; |
173 | } | |
174 | ||
9f141731 | 175 | |
a0d0e21e LW |
176 | PP(pp_substcont) |
177 | { | |
97aff369 | 178 | dVAR; |
39644a26 | 179 | dSP; |
eb578fdb KW |
180 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
181 | PMOP * const pm = (PMOP*) cLOGOP->op_other; | |
182 | SV * const dstr = cx->sb_dstr; | |
183 | char *s = cx->sb_s; | |
184 | char *m = cx->sb_m; | |
a0d0e21e | 185 | char *orig = cx->sb_orig; |
eb578fdb | 186 | REGEXP * const rx = cx->sb_rx; |
c445ea15 | 187 | SV *nsv = NULL; |
988e6e7e | 188 | REGEXP *old = PM_GETRE(pm); |
f410a211 NC |
189 | |
190 | PERL_ASYNC_CHECK(); | |
191 | ||
988e6e7e | 192 | if(old != rx) { |
bfed75c6 | 193 | if(old) |
988e6e7e | 194 | ReREFCNT_dec(old); |
d6106309 | 195 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
196 | } |
197 | ||
d9f97599 | 198 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 199 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 200 | |
a0d0e21e | 201 | if (cx->sb_iters++) { |
a3b680e6 | 202 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 203 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 204 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 205 | |
447ee134 DM |
206 | SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */ |
207 | ||
ef07e810 | 208 | /* See "how taint works" above pp_subst() */ |
20be6587 DM |
209 | if (SvTAINTED(TOPs)) |
210 | cx->sb_rxtainted |= SUBST_TAINT_REPL; | |
447ee134 | 211 | sv_catsv_nomg(dstr, POPs); |
2c296965 YO |
212 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
213 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
214 | |
215 | /* Are we done */ | |
2c296965 YO |
216 | if (CxONCE(cx) || s < orig || |
217 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
218 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
fbfb1899 | 219 | (REXEC_IGNOREPOS|REXEC_NOT_FIRST))) |
a0d0e21e | 220 | { |
8ca8a454 | 221 | SV *targ = cx->sb_targ; |
748a9306 | 222 | |
078c425b JH |
223 | assert(cx->sb_strend >= s); |
224 | if(cx->sb_strend > s) { | |
225 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
4bac9ae4 | 226 | sv_catpvn_nomg_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); |
078c425b | 227 | else |
4bac9ae4 | 228 | sv_catpvn_nomg(dstr, s, cx->sb_strend - s); |
078c425b | 229 | } |
20be6587 DM |
230 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ |
231 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
9212bbba | 232 | |
8ca8a454 NC |
233 | if (pm->op_pmflags & PMf_NONDESTRUCT) { |
234 | PUSHs(dstr); | |
235 | /* From here on down we're using the copy, and leaving the | |
236 | original untouched. */ | |
237 | targ = dstr; | |
238 | } | |
239 | else { | |
8ca8a454 NC |
240 | if (SvIsCOW(targ)) { |
241 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
242 | } else | |
8ca8a454 NC |
243 | { |
244 | SvPV_free(targ); | |
245 | } | |
246 | SvPV_set(targ, SvPVX(dstr)); | |
247 | SvCUR_set(targ, SvCUR(dstr)); | |
248 | SvLEN_set(targ, SvLEN(dstr)); | |
249 | if (DO_UTF8(dstr)) | |
250 | SvUTF8_on(targ); | |
251 | SvPV_set(dstr, NULL); | |
252 | ||
52c47e16 | 253 | PL_tainted = 0; |
4f4d7508 | 254 | mPUSHi(saviters - 1); |
48c036b1 | 255 | |
8ca8a454 NC |
256 | (void)SvPOK_only_UTF8(targ); |
257 | } | |
5cd24f17 | 258 | |
20be6587 | 259 | /* update the taint state of various various variables in |
ef07e810 DM |
260 | * preparation for final exit. |
261 | * See "how taint works" above pp_subst() */ | |
284167a5 | 262 | if (TAINTING_get) { |
20be6587 DM |
263 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || |
264 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
265 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
266 | ) | |
267 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
268 | ||
269 | if (!(cx->sb_rxtainted & SUBST_TAINT_BOOLRET) | |
270 | && (cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_PAT)) | |
271 | ) | |
272 | SvTAINTED_on(TOPs); /* taint return value */ | |
273 | /* needed for mg_set below */ | |
284167a5 S |
274 | TAINT_set( |
275 | cBOOL(cx->sb_rxtainted & | |
276 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL)) | |
277 | ); | |
20be6587 DM |
278 | SvTAINT(TARG); |
279 | } | |
280 | /* PL_tainted must be correctly set for this mg_set */ | |
281 | SvSETMAGIC(TARG); | |
282 | TAINT_NOT; | |
4633a7c4 | 283 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
284 | POPSUBST(cx); |
285 | RETURNOP(pm->op_next); | |
118e2215 | 286 | assert(0); /* NOTREACHED */ |
a0d0e21e | 287 | } |
8e5e9ebe | 288 | cx->sb_iters = saviters; |
a0d0e21e | 289 | } |
07bc277f | 290 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
291 | m = s; |
292 | s = orig; | |
6502e081 | 293 | assert(!RX_SUBOFFSET(rx)); |
07bc277f | 294 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
295 | s = orig + (m - s); |
296 | cx->sb_strend = s + (cx->sb_strend - m); | |
297 | } | |
07bc277f | 298 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 299 | if (m > s) { |
bfed75c6 | 300 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
4bac9ae4 | 301 | sv_catpvn_nomg_utf8_upgrade(dstr, s, m - s, nsv); |
db79b45b | 302 | else |
4bac9ae4 | 303 | sv_catpvn_nomg(dstr, s, m-s); |
db79b45b | 304 | } |
07bc277f | 305 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 306 | { /* Update the pos() information. */ |
8ca8a454 NC |
307 | SV * const sv |
308 | = (pm->op_pmflags & PMf_NONDESTRUCT) ? cx->sb_dstr : cx->sb_targ; | |
084916e3 | 309 | MAGIC *mg; |
7a7f3e45 | 310 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 311 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 312 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 313 | if (SvIsCOW(sv)) |
d83f0a82 NC |
314 | sv_force_normal_flags(sv, 0); |
315 | #endif | |
316 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
317 | NULL, 0); | |
084916e3 | 318 | } |
ce474962 | 319 | mg->mg_len = 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 | { | |
97aff369 | 456 | dVAR; 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 DM |
464 | const char *item = NULL;/* string value of current item */ |
465 | I32 itemsize = 0; /* length of current item, possibly truncated */ | |
466 | I32 fieldsize = 0; /* width of current field */ | |
467 | I32 lines = 0; /* number of lines that have been output */ | |
468 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); /* does $: have space */ | |
469 | const char *chophere = NULL; /* where to chop current item */ | |
f5ada144 | 470 | STRLEN linemark = 0; /* pos of start of line in output */ |
65202027 | 471 | NV value; |
086b26f3 | 472 | bool gotsome = FALSE; /* seen at least one non-blank item on this line */ |
a0d0e21e | 473 | STRLEN len; |
26e935cf | 474 | STRLEN linemax; /* estimate of output size in bytes */ |
1bd51a4c IH |
475 | bool item_is_utf8 = FALSE; |
476 | bool targ_is_utf8 = FALSE; | |
bfed75c6 | 477 | const char *fmt; |
74e0ddf7 | 478 | MAGIC *mg = NULL; |
4ff700b9 DM |
479 | U8 *source; /* source of bytes to append */ |
480 | STRLEN to_copy; /* how may bytes to append */ | |
ea60cfe8 | 481 | char trans; /* what chars to translate */ |
74e0ddf7 | 482 | |
3808a683 | 483 | mg = doparseform(tmpForm); |
a0d0e21e | 484 | |
74e0ddf7 | 485 | fpc = (U32*)mg->mg_ptr; |
3808a683 DM |
486 | /* the actual string the format was compiled from. |
487 | * with overload etc, this may not match tmpForm */ | |
488 | formsv = mg->mg_obj; | |
489 | ||
74e0ddf7 | 490 | |
3280af22 | 491 | SvPV_force(PL_formtarget, len); |
3808a683 | 492 | if (SvTAINTED(tmpForm) || SvTAINTED(formsv)) |
125b9982 | 493 | SvTAINTED_on(PL_formtarget); |
1bd51a4c IH |
494 | if (DO_UTF8(PL_formtarget)) |
495 | targ_is_utf8 = TRUE; | |
26e935cf DM |
496 | linemax = (SvCUR(formsv) * (IN_BYTES ? 1 : 3) + 1); |
497 | t = SvGROW(PL_formtarget, len + linemax + 1); | |
498 | /* XXX from now onwards, SvCUR(PL_formtarget) is invalid */ | |
a0d0e21e | 499 | t += len; |
3808a683 | 500 | f = SvPV_const(formsv, len); |
a0d0e21e LW |
501 | |
502 | for (;;) { | |
503 | DEBUG_f( { | |
bfed75c6 | 504 | const char *name = "???"; |
a0d0e21e LW |
505 | arg = -1; |
506 | switch (*fpc) { | |
507 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
508 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
509 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
510 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
511 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
512 | ||
513 | case FF_CHECKNL: name = "CHECKNL"; break; | |
514 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
515 | case FF_SPACE: name = "SPACE"; break; | |
516 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
517 | case FF_ITEM: name = "ITEM"; break; | |
518 | case FF_CHOP: name = "CHOP"; break; | |
519 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
520 | case FF_NEWLINE: name = "NEWLINE"; break; | |
521 | case FF_MORE: name = "MORE"; break; | |
522 | case FF_LINEMARK: name = "LINEMARK"; break; | |
523 | case FF_END: name = "END"; break; | |
bfed75c6 | 524 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 525 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
526 | } |
527 | if (arg >= 0) | |
bf49b057 | 528 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 529 | else |
bf49b057 | 530 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 531 | } ); |
a0d0e21e LW |
532 | switch (*fpc++) { |
533 | case FF_LINEMARK: | |
f5ada144 | 534 | linemark = t - SvPVX(PL_formtarget); |
a0d0e21e LW |
535 | lines++; |
536 | gotsome = FALSE; | |
537 | break; | |
538 | ||
539 | case FF_LITERAL: | |
ea60cfe8 DM |
540 | to_copy = *fpc++; |
541 | source = (U8 *)f; | |
542 | f += to_copy; | |
543 | trans = '~'; | |
75645721 | 544 | item_is_utf8 = targ_is_utf8 ? !!DO_UTF8(formsv) : !!SvUTF8(formsv); |
ea60cfe8 | 545 | goto append; |
a0d0e21e LW |
546 | |
547 | case FF_SKIP: | |
548 | f += *fpc++; | |
549 | break; | |
550 | ||
551 | case FF_FETCH: | |
552 | arg = *fpc++; | |
553 | f += arg; | |
554 | fieldsize = arg; | |
555 | ||
556 | if (MARK < SP) | |
557 | sv = *++MARK; | |
558 | else { | |
3280af22 | 559 | sv = &PL_sv_no; |
a2a5de95 | 560 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e | 561 | } |
125b9982 NT |
562 | if (SvTAINTED(sv)) |
563 | SvTAINTED_on(PL_formtarget); | |
a0d0e21e LW |
564 | break; |
565 | ||
566 | case FF_CHECKNL: | |
5a34cab7 NC |
567 | { |
568 | const char *send; | |
569 | const char *s = item = SvPV_const(sv, len); | |
570 | itemsize = len; | |
571 | if (DO_UTF8(sv)) { | |
572 | itemsize = sv_len_utf8(sv); | |
573 | if (itemsize != (I32)len) { | |
574 | I32 itembytes; | |
575 | if (itemsize > fieldsize) { | |
576 | itemsize = fieldsize; | |
577 | itembytes = itemsize; | |
578 | sv_pos_u2b(sv, &itembytes, 0); | |
579 | } | |
580 | else | |
581 | itembytes = len; | |
582 | send = chophere = s + itembytes; | |
583 | while (s < send) { | |
584 | if (*s & ~31) | |
585 | gotsome = TRUE; | |
586 | else if (*s == '\n') | |
587 | break; | |
588 | s++; | |
589 | } | |
590 | item_is_utf8 = TRUE; | |
591 | itemsize = s - item; | |
592 | sv_pos_b2u(sv, &itemsize); | |
593 | break; | |
a0ed51b3 | 594 | } |
a0ed51b3 | 595 | } |
5a34cab7 NC |
596 | item_is_utf8 = FALSE; |
597 | if (itemsize > fieldsize) | |
598 | itemsize = fieldsize; | |
599 | send = chophere = s + itemsize; | |
600 | while (s < send) { | |
601 | if (*s & ~31) | |
602 | gotsome = TRUE; | |
603 | else if (*s == '\n') | |
604 | break; | |
605 | s++; | |
606 | } | |
607 | itemsize = s - item; | |
608 | break; | |
a0ed51b3 | 609 | } |
a0d0e21e LW |
610 | |
611 | case FF_CHECKCHOP: | |
5a34cab7 NC |
612 | { |
613 | const char *s = item = SvPV_const(sv, len); | |
614 | itemsize = len; | |
615 | if (DO_UTF8(sv)) { | |
616 | itemsize = sv_len_utf8(sv); | |
617 | if (itemsize != (I32)len) { | |
618 | I32 itembytes; | |
619 | if (itemsize <= fieldsize) { | |
620 | const char *send = chophere = s + itemsize; | |
621 | while (s < send) { | |
622 | if (*s == '\r') { | |
623 | itemsize = s - item; | |
a0ed51b3 | 624 | chophere = s; |
a0ed51b3 | 625 | break; |
5a34cab7 NC |
626 | } |
627 | if (*s++ & ~31) | |
a0ed51b3 | 628 | gotsome = TRUE; |
a0ed51b3 | 629 | } |
a0ed51b3 | 630 | } |
5a34cab7 NC |
631 | else { |
632 | const char *send; | |
633 | itemsize = fieldsize; | |
634 | itembytes = itemsize; | |
635 | sv_pos_u2b(sv, &itembytes, 0); | |
636 | send = chophere = s + itembytes; | |
637 | while (s < send || (s == send && isSPACE(*s))) { | |
638 | if (isSPACE(*s)) { | |
639 | if (chopspace) | |
640 | chophere = s; | |
641 | if (*s == '\r') | |
642 | break; | |
643 | } | |
644 | else { | |
645 | if (*s & ~31) | |
646 | gotsome = TRUE; | |
647 | if (strchr(PL_chopset, *s)) | |
648 | chophere = s + 1; | |
649 | } | |
650 | s++; | |
651 | } | |
652 | itemsize = chophere - item; | |
653 | sv_pos_b2u(sv, &itemsize); | |
654 | } | |
655 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
656 | break; |
657 | } | |
a0d0e21e | 658 | } |
5a34cab7 NC |
659 | item_is_utf8 = FALSE; |
660 | if (itemsize <= fieldsize) { | |
661 | const char *const send = chophere = s + itemsize; | |
662 | while (s < send) { | |
663 | if (*s == '\r') { | |
664 | itemsize = s - item; | |
a0d0e21e | 665 | chophere = s; |
a0d0e21e | 666 | break; |
5a34cab7 NC |
667 | } |
668 | if (*s++ & ~31) | |
a0d0e21e | 669 | gotsome = TRUE; |
a0d0e21e | 670 | } |
a0d0e21e | 671 | } |
5a34cab7 NC |
672 | else { |
673 | const char *send; | |
674 | itemsize = fieldsize; | |
675 | send = chophere = s + itemsize; | |
676 | while (s < send || (s == send && isSPACE(*s))) { | |
677 | if (isSPACE(*s)) { | |
678 | if (chopspace) | |
679 | chophere = s; | |
680 | if (*s == '\r') | |
681 | break; | |
682 | } | |
683 | else { | |
684 | if (*s & ~31) | |
685 | gotsome = TRUE; | |
686 | if (strchr(PL_chopset, *s)) | |
687 | chophere = s + 1; | |
688 | } | |
689 | s++; | |
690 | } | |
691 | itemsize = chophere - item; | |
692 | } | |
693 | break; | |
a0d0e21e | 694 | } |
a0d0e21e LW |
695 | |
696 | case FF_SPACE: | |
697 | arg = fieldsize - itemsize; | |
698 | if (arg) { | |
699 | fieldsize -= arg; | |
700 | while (arg-- > 0) | |
701 | *t++ = ' '; | |
702 | } | |
703 | break; | |
704 | ||
705 | case FF_HALFSPACE: | |
706 | arg = fieldsize - itemsize; | |
707 | if (arg) { | |
708 | arg /= 2; | |
709 | fieldsize -= arg; | |
710 | while (arg-- > 0) | |
711 | *t++ = ' '; | |
712 | } | |
713 | break; | |
714 | ||
715 | case FF_ITEM: | |
8aa7beb6 DM |
716 | to_copy = itemsize; |
717 | source = (U8 *)item; | |
718 | trans = 1; | |
719 | if (item_is_utf8) { | |
720 | /* convert to_copy from chars to bytes */ | |
721 | U8 *s = source; | |
722 | while (to_copy--) | |
723 | s += UTF8SKIP(s); | |
724 | to_copy = s - source; | |
a0d0e21e | 725 | } |
8aa7beb6 | 726 | goto append; |
a0d0e21e LW |
727 | |
728 | case FF_CHOP: | |
5a34cab7 NC |
729 | { |
730 | const char *s = chophere; | |
731 | if (chopspace) { | |
af68e756 | 732 | while (isSPACE(*s)) |
5a34cab7 NC |
733 | s++; |
734 | } | |
735 | sv_chop(sv,s); | |
736 | SvSETMAGIC(sv); | |
737 | break; | |
a0d0e21e | 738 | } |
a0d0e21e | 739 | |
a1b95068 WL |
740 | case FF_LINESNGL: |
741 | chopspace = 0; | |
a0d0e21e | 742 | case FF_LINEGLOB: |
5a34cab7 | 743 | { |
e32383e2 | 744 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 745 | const char *s = item = SvPV_const(sv, len); |
7440a75b | 746 | const char *const send = s + len; |
7440a75b | 747 | |
f3f2f1a3 | 748 | item_is_utf8 = DO_UTF8(sv); |
a1137ee5 | 749 | if (!len) |
7440a75b | 750 | break; |
ea60cfe8 | 751 | trans = 0; |
0d21cefe | 752 | gotsome = TRUE; |
a1137ee5 | 753 | chophere = s + len; |
4ff700b9 DM |
754 | source = (U8 *) s; |
755 | to_copy = len; | |
0d21cefe DM |
756 | while (s < send) { |
757 | if (*s++ == '\n') { | |
758 | if (oneline) { | |
759 | to_copy = s - SvPVX_const(sv) - 1; | |
760 | chophere = s; | |
761 | break; | |
762 | } else { | |
763 | if (s == send) { | |
0d21cefe DM |
764 | to_copy--; |
765 | } else | |
766 | lines++; | |
1bd51a4c | 767 | } |
a0d0e21e | 768 | } |
0d21cefe | 769 | } |
a2c0032b DM |
770 | } |
771 | ||
ea60cfe8 DM |
772 | append: |
773 | /* append to_copy bytes from source to PL_formstring. | |
774 | * item_is_utf8 implies source is utf8. | |
775 | * if trans, translate certain characters during the copy */ | |
a2c0032b DM |
776 | { |
777 | U8 *tmp = NULL; | |
26e935cf | 778 | STRLEN grow = 0; |
0325ce87 DM |
779 | |
780 | SvCUR_set(PL_formtarget, | |
781 | t - SvPVX_const(PL_formtarget)); | |
782 | ||
0d21cefe DM |
783 | if (targ_is_utf8 && !item_is_utf8) { |
784 | source = tmp = bytes_to_utf8(source, &to_copy); | |
0d21cefe DM |
785 | } else { |
786 | if (item_is_utf8 && !targ_is_utf8) { | |
f5ada144 | 787 | U8 *s; |
0d21cefe | 788 | /* Upgrade targ to UTF8, and then we reduce it to |
0325ce87 DM |
789 | a problem we have a simple solution for. |
790 | Don't need get magic. */ | |
0d21cefe | 791 | sv_utf8_upgrade_nomg(PL_formtarget); |
0325ce87 | 792 | targ_is_utf8 = TRUE; |
f5ada144 DM |
793 | /* re-calculate linemark */ |
794 | s = (U8*)SvPVX(PL_formtarget); | |
26e935cf DM |
795 | /* the bytes we initially allocated to append the |
796 | * whole line may have been gobbled up during the | |
797 | * upgrade, so allocate a whole new line's worth | |
798 | * for safety */ | |
799 | grow = linemax; | |
f5ada144 DM |
800 | while (linemark--) |
801 | s += UTF8SKIP(s); | |
802 | linemark = s - (U8*)SvPVX(PL_formtarget); | |
e8e72d41 | 803 | } |
0d21cefe DM |
804 | /* Easy. They agree. */ |
805 | assert (item_is_utf8 == targ_is_utf8); | |
806 | } | |
26e935cf DM |
807 | if (!trans) |
808 | /* @* and ^* are the only things that can exceed | |
809 | * the linemax, so grow by the output size, plus | |
810 | * a whole new form's worth in case of any further | |
811 | * output */ | |
812 | grow = linemax + to_copy; | |
813 | if (grow) | |
814 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + grow + 1); | |
0d21cefe DM |
815 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
816 | ||
817 | Copy(source, t, to_copy, char); | |
ea60cfe8 | 818 | if (trans) { |
8aa7beb6 DM |
819 | /* blank out ~ or control chars, depending on trans. |
820 | * works on bytes not chars, so relies on not | |
821 | * matching utf8 continuation bytes */ | |
ea60cfe8 DM |
822 | U8 *s = (U8*)t; |
823 | U8 *send = s + to_copy; | |
824 | while (s < send) { | |
8aa7beb6 DM |
825 | const int ch = *s; |
826 | if (trans == '~' ? (ch == '~') : | |
827 | #ifdef EBCDIC | |
828 | iscntrl(ch) | |
829 | #else | |
830 | (!(ch & ~31)) | |
831 | #endif | |
832 | ) | |
ea60cfe8 DM |
833 | *s = ' '; |
834 | s++; | |
835 | } | |
836 | } | |
837 | ||
0d21cefe DM |
838 | t += to_copy; |
839 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
a1137ee5 | 840 | if (tmp) |
0d21cefe | 841 | Safefree(tmp); |
5a34cab7 | 842 | break; |
a0d0e21e | 843 | } |
a0d0e21e | 844 | |
a1b95068 WL |
845 | case FF_0DECIMAL: |
846 | arg = *fpc++; | |
847 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d | 848 | fmt = (const char *) |
a701009a | 849 | ((arg & FORM_NUM_POINT) ? |
10edeb5d | 850 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); |
a1b95068 | 851 | #else |
10edeb5d | 852 | fmt = (const char *) |
a701009a | 853 | ((arg & FORM_NUM_POINT) ? |
10edeb5d | 854 | "%#0*.*f" : "%0*.*f"); |
a1b95068 WL |
855 | #endif |
856 | goto ff_dec; | |
a0d0e21e | 857 | case FF_DECIMAL: |
a0d0e21e | 858 | arg = *fpc++; |
65202027 | 859 | #if defined(USE_LONG_DOUBLE) |
10edeb5d | 860 | fmt = (const char *) |
a701009a | 861 | ((arg & FORM_NUM_POINT) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); |
65202027 | 862 | #else |
10edeb5d | 863 | fmt = (const char *) |
a701009a | 864 | ((arg & FORM_NUM_POINT) ? "%#*.*f" : "%*.*f"); |
65202027 | 865 | #endif |
a1b95068 | 866 | ff_dec: |
784707d5 JP |
867 | /* If the field is marked with ^ and the value is undefined, |
868 | blank it out. */ | |
a701009a | 869 | if ((arg & FORM_NUM_BLANK) && !SvOK(sv)) { |
784707d5 JP |
870 | arg = fieldsize; |
871 | while (arg--) | |
872 | *t++ = ' '; | |
873 | break; | |
874 | } | |
875 | gotsome = TRUE; | |
876 | value = SvNV(sv); | |
a1b95068 | 877 | /* overflow evidence */ |
bfed75c6 | 878 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
879 | arg = fieldsize; |
880 | while (arg--) | |
881 | *t++ = '#'; | |
882 | break; | |
883 | } | |
784707d5 JP |
884 | /* Formats aren't yet marked for locales, so assume "yes". */ |
885 | { | |
886 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
a701009a DM |
887 | arg &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
888 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg, value); | |
784707d5 JP |
889 | RESTORE_NUMERIC_STANDARD(); |
890 | } | |
891 | t += fieldsize; | |
892 | break; | |
a1b95068 | 893 | |
a0d0e21e LW |
894 | case FF_NEWLINE: |
895 | f++; | |
f5ada144 | 896 | while (t-- > (SvPVX(PL_formtarget) + linemark) && *t == ' ') ; |
a0d0e21e LW |
897 | t++; |
898 | *t++ = '\n'; | |
899 | break; | |
900 | ||
901 | case FF_BLANK: | |
902 | arg = *fpc++; | |
903 | if (gotsome) { | |
904 | if (arg) { /* repeat until fields exhausted? */ | |
11f9eeaf DM |
905 | fpc--; |
906 | goto end; | |
a0d0e21e LW |
907 | } |
908 | } | |
909 | else { | |
f5ada144 | 910 | t = SvPVX(PL_formtarget) + linemark; |
a0d0e21e LW |
911 | lines--; |
912 | } | |
913 | break; | |
914 | ||
915 | case FF_MORE: | |
5a34cab7 NC |
916 | { |
917 | const char *s = chophere; | |
918 | const char *send = item + len; | |
919 | if (chopspace) { | |
af68e756 | 920 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 921 | s++; |
a0d0e21e | 922 | } |
5a34cab7 NC |
923 | if (s < send) { |
924 | char *s1; | |
925 | arg = fieldsize - itemsize; | |
926 | if (arg) { | |
927 | fieldsize -= arg; | |
928 | while (arg-- > 0) | |
929 | *t++ = ' '; | |
930 | } | |
931 | s1 = t - 3; | |
932 | if (strnEQ(s1," ",3)) { | |
933 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
934 | s1--; | |
935 | } | |
936 | *s1++ = '.'; | |
937 | *s1++ = '.'; | |
938 | *s1++ = '.'; | |
a0d0e21e | 939 | } |
5a34cab7 | 940 | break; |
a0d0e21e | 941 | } |
a0d0e21e | 942 | case FF_END: |
11f9eeaf | 943 | end: |
bf2bec63 | 944 | assert(t < SvPVX_const(PL_formtarget) + SvLEN(PL_formtarget)); |
a0d0e21e | 945 | *t = '\0'; |
b15aece3 | 946 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
947 | if (targ_is_utf8) |
948 | SvUTF8_on(PL_formtarget); | |
3280af22 | 949 | FmLINES(PL_formtarget) += lines; |
a0d0e21e | 950 | SP = ORIGMARK; |
11f9eeaf DM |
951 | if (fpc[-1] == FF_BLANK) |
952 | RETURNOP(cLISTOP->op_first); | |
953 | else | |
954 | RETPUSHYES; | |
a0d0e21e LW |
955 | } |
956 | } | |
957 | } | |
958 | ||
959 | PP(pp_grepstart) | |
960 | { | |
27da23d5 | 961 | dVAR; dSP; |
a0d0e21e LW |
962 | SV *src; |
963 | ||
3280af22 | 964 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 965 | (void)POPMARK; |
54310121 | 966 | if (GIMME_V == G_SCALAR) |
6e449a3a | 967 | mXPUSHi(0); |
533c011a | 968 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 969 | } |
3280af22 | 970 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
897d3989 NC |
971 | Perl_pp_pushmark(aTHX); /* push dst */ |
972 | Perl_pp_pushmark(aTHX); /* push src */ | |
d343c3ef | 973 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
974 | |
975 | SAVETMPS; | |
59f00321 RGS |
976 | if (PL_op->op_private & OPpGREP_LEX) |
977 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
978 | else | |
979 | SAVE_DEFSV; | |
d343c3ef | 980 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 981 | SAVEVPTR(PL_curpm); |
a0d0e21e | 982 | |
3280af22 | 983 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 984 | SvTEMP_off(src); |
59f00321 RGS |
985 | if (PL_op->op_private & OPpGREP_LEX) |
986 | PAD_SVl(PL_op->op_targ) = src; | |
987 | else | |
414bf5ae | 988 | DEFSV_set(src); |
a0d0e21e LW |
989 | |
990 | PUTBACK; | |
533c011a | 991 | if (PL_op->op_type == OP_MAPSTART) |
897d3989 | 992 | Perl_pp_pushmark(aTHX); /* push top */ |
533c011a | 993 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
994 | } |
995 | ||
a0d0e21e LW |
996 | PP(pp_mapwhile) |
997 | { | |
27da23d5 | 998 | dVAR; dSP; |
f54cb97a | 999 | const I32 gimme = GIMME_V; |
544f3153 | 1000 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1001 | I32 count; |
1002 | I32 shift; | |
1003 | SV** src; | |
ac27b0f5 | 1004 | SV** dst; |
a0d0e21e | 1005 | |
544f3153 | 1006 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1007 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1008 | |
1009 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1010 | if (items && gimme != G_VOID) { |
544f3153 GS |
1011 | /* might need to make room back there first */ |
1012 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1013 | /* XXX this implementation is very pessimal because the stack | |
1014 | * is repeatedly extended for every set of items. Is possible | |
1015 | * to do this without any stack extension or copying at all | |
1016 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1017 | * (like foreach does). --gsar */ |
544f3153 GS |
1018 | |
1019 | /* everything in the stack after the destination list moves | |
1020 | * towards the end the stack by the amount of room needed */ | |
1021 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1022 | ||
1023 | /* items to shift up (accounting for the moved source pointer) */ | |
1024 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1025 | |
1026 | /* This optimization is by Ben Tilly and it does | |
1027 | * things differently from what Sarathy (gsar) | |
1028 | * is describing. The downside of this optimization is | |
1029 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1030 | * to the Perl stack, but on the other hand this | |
1031 | * shouldn't be a problem. If Sarathy's idea gets | |
1032 | * implemented, this optimization should become | |
1033 | * irrelevant. --jhi */ | |
1034 | if (shift < count) | |
1035 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1036 | |
924508f0 GS |
1037 | EXTEND(SP,shift); |
1038 | src = SP; | |
1039 | dst = (SP += shift); | |
3280af22 NIS |
1040 | PL_markstack_ptr[-1] += shift; |
1041 | *PL_markstack_ptr += shift; | |
544f3153 | 1042 | while (count--) |
a0d0e21e LW |
1043 | *dst-- = *src--; |
1044 | } | |
544f3153 | 1045 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1046 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 | 1047 | if (gimme == G_ARRAY) { |
b2a2a901 DM |
1048 | /* add returned items to the collection (making mortal copies |
1049 | * if necessary), then clear the current temps stack frame | |
1050 | * *except* for those items. We do this splicing the items | |
1051 | * into the start of the tmps frame (so some items may be on | |
59d53fd6 | 1052 | * the tmps stack twice), then moving PL_tmps_floor above |
b2a2a901 DM |
1053 | * them, then freeing the frame. That way, the only tmps that |
1054 | * accumulate over iterations are the return values for map. | |
1055 | * We have to do to this way so that everything gets correctly | |
1056 | * freed if we die during the map. | |
1057 | */ | |
1058 | I32 tmpsbase; | |
1059 | I32 i = items; | |
1060 | /* make space for the slice */ | |
1061 | EXTEND_MORTAL(items); | |
1062 | tmpsbase = PL_tmps_floor + 1; | |
1063 | Move(PL_tmps_stack + tmpsbase, | |
1064 | PL_tmps_stack + tmpsbase + items, | |
1065 | PL_tmps_ix - PL_tmps_floor, | |
1066 | SV*); | |
1067 | PL_tmps_ix += items; | |
1068 | ||
1069 | while (i-- > 0) { | |
1070 | SV *sv = POPs; | |
1071 | if (!SvTEMP(sv)) | |
1072 | sv = sv_mortalcopy(sv); | |
1073 | *dst-- = sv; | |
1074 | PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv); | |
1075 | } | |
1076 | /* clear the stack frame except for the items */ | |
1077 | PL_tmps_floor += items; | |
1078 | FREETMPS; | |
1079 | /* FREETMPS may have cleared the TEMP flag on some of the items */ | |
1080 | i = items; | |
1081 | while (i-- > 0) | |
1082 | SvTEMP_on(PL_tmps_stack[--tmpsbase]); | |
22023b26 | 1083 | } |
bfed75c6 | 1084 | else { |
22023b26 TP |
1085 | /* scalar context: we don't care about which values map returns |
1086 | * (we use undef here). And so we certainly don't want to do mortal | |
1087 | * copies of meaningless values. */ | |
1088 | while (items-- > 0) { | |
b988aa42 | 1089 | (void)POPs; |
22023b26 TP |
1090 | *dst-- = &PL_sv_undef; |
1091 | } | |
b2a2a901 | 1092 | FREETMPS; |
22023b26 | 1093 | } |
a0d0e21e | 1094 | } |
b2a2a901 DM |
1095 | else { |
1096 | FREETMPS; | |
1097 | } | |
d343c3ef | 1098 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1099 | |
1100 | /* All done yet? */ | |
3280af22 | 1101 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1102 | |
1103 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1104 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1105 | (void)POPMARK; /* pop src */ |
3280af22 | 1106 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1107 | (void)POPMARK; /* pop dst */ |
3280af22 | 1108 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1109 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1110 | if (PL_op->op_private & OPpGREP_LEX) { |
1111 | SV* sv = sv_newmortal(); | |
1112 | sv_setiv(sv, items); | |
1113 | PUSHs(sv); | |
1114 | } | |
1115 | else { | |
1116 | dTARGET; | |
1117 | XPUSHi(items); | |
1118 | } | |
a0d0e21e | 1119 | } |
54310121 | 1120 | else if (gimme == G_ARRAY) |
1121 | SP += items; | |
a0d0e21e LW |
1122 | RETURN; |
1123 | } | |
1124 | else { | |
1125 | SV *src; | |
1126 | ||
d343c3ef | 1127 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1128 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1129 | |
544f3153 | 1130 | /* set $_ to the new source item */ |
3280af22 | 1131 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1132 | SvTEMP_off(src); |
59f00321 RGS |
1133 | if (PL_op->op_private & OPpGREP_LEX) |
1134 | PAD_SVl(PL_op->op_targ) = src; | |
1135 | else | |
414bf5ae | 1136 | DEFSV_set(src); |
a0d0e21e LW |
1137 | |
1138 | RETURNOP(cLOGOP->op_other); | |
1139 | } | |
1140 | } | |
1141 | ||
a0d0e21e LW |
1142 | /* Range stuff. */ |
1143 | ||
1144 | PP(pp_range) | |
1145 | { | |
97aff369 | 1146 | dVAR; |
a0d0e21e | 1147 | if (GIMME == G_ARRAY) |
1a67a97c | 1148 | return NORMAL; |
538573f7 | 1149 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1150 | return cLOGOP->op_other; |
538573f7 | 1151 | else |
1a67a97c | 1152 | return NORMAL; |
a0d0e21e LW |
1153 | } |
1154 | ||
1155 | PP(pp_flip) | |
1156 | { | |
97aff369 | 1157 | dVAR; |
39644a26 | 1158 | dSP; |
a0d0e21e LW |
1159 | |
1160 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1161 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1162 | } |
1163 | else { | |
1164 | dTOPss; | |
44f8325f | 1165 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1166 | int flip = 0; |
790090df | 1167 | |
bfed75c6 | 1168 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1169 | if (GvIO(PL_last_in_gv)) { |
1170 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1171 | } | |
1172 | else { | |
fafc274c | 1173 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1174 | if (gv && GvSV(gv)) |
1175 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1176 | } |
bfed75c6 AL |
1177 | } else { |
1178 | flip = SvTRUE(sv); | |
1179 | } | |
1180 | if (flip) { | |
a0d0e21e | 1181 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1182 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1183 | sv_setiv(targ, 1); |
3e3baf6d | 1184 | SETs(targ); |
a0d0e21e LW |
1185 | RETURN; |
1186 | } | |
1187 | else { | |
1188 | sv_setiv(targ, 0); | |
924508f0 | 1189 | SP--; |
1a67a97c | 1190 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1191 | } |
1192 | } | |
76f68e9b | 1193 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1194 | SETs(targ); |
1195 | RETURN; | |
1196 | } | |
1197 | } | |
1198 | ||
8e9bbdb9 RGS |
1199 | /* This code tries to decide if "$left .. $right" should use the |
1200 | magical string increment, or if the range is numeric (we make | |
1201 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1202 | ||
1203 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1204 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1205 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1206 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1207 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1208 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1209 | |
a0d0e21e LW |
1210 | PP(pp_flop) |
1211 | { | |
97aff369 | 1212 | dVAR; dSP; |
a0d0e21e LW |
1213 | |
1214 | if (GIMME == G_ARRAY) { | |
1215 | dPOPPOPssrl; | |
86cb7173 | 1216 | |
5b295bef RD |
1217 | SvGETMAGIC(left); |
1218 | SvGETMAGIC(right); | |
a0d0e21e | 1219 | |
8e9bbdb9 | 1220 | if (RANGE_IS_NUMERIC(left,right)) { |
eb578fdb | 1221 | IV i, j; |
901017d6 | 1222 | IV max; |
f52e41ad FC |
1223 | if ((SvOK(left) && SvNV_nomg(left) < IV_MIN) || |
1224 | (SvOK(right) && SvNV_nomg(right) > IV_MAX)) | |
d470f89e | 1225 | DIE(aTHX_ "Range iterator outside integer range"); |
f52e41ad FC |
1226 | i = SvIV_nomg(left); |
1227 | max = SvIV_nomg(right); | |
bbce6d69 | 1228 | if (max >= i) { |
c1ab3db2 AK |
1229 | j = max - i + 1; |
1230 | EXTEND_MORTAL(j); | |
1231 | EXTEND(SP, j); | |
bbce6d69 | 1232 | } |
c1ab3db2 AK |
1233 | else |
1234 | j = 0; | |
1235 | while (j--) { | |
901017d6 | 1236 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1237 | PUSHs(sv); |
1238 | } | |
1239 | } | |
1240 | else { | |
3c323193 FC |
1241 | STRLEN len, llen; |
1242 | const char * const lpv = SvPV_nomg_const(left, llen); | |
f52e41ad | 1243 | const char * const tmps = SvPV_nomg_const(right, len); |
a0d0e21e | 1244 | |
3c323193 | 1245 | SV *sv = newSVpvn_flags(lpv, llen, SvUTF8(left)|SVs_TEMP); |
89ea2908 | 1246 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1247 | XPUSHs(sv); |
b15aece3 | 1248 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1249 | break; |
a0d0e21e LW |
1250 | sv = sv_2mortal(newSVsv(sv)); |
1251 | sv_inc(sv); | |
1252 | } | |
a0d0e21e LW |
1253 | } |
1254 | } | |
1255 | else { | |
1256 | dTOPss; | |
901017d6 | 1257 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1258 | int flop = 0; |
a0d0e21e | 1259 | sv_inc(targ); |
4e3399f9 YST |
1260 | |
1261 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1262 | if (GvIO(PL_last_in_gv)) { | |
1263 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1264 | } | |
1265 | else { | |
fafc274c | 1266 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1267 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1268 | } | |
1269 | } | |
1270 | else { | |
1271 | flop = SvTRUE(sv); | |
1272 | } | |
1273 | ||
1274 | if (flop) { | |
a0d0e21e | 1275 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1276 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1277 | } |
1278 | SETs(targ); | |
1279 | } | |
1280 | ||
1281 | RETURN; | |
1282 | } | |
1283 | ||
1284 | /* Control. */ | |
1285 | ||
27da23d5 | 1286 | static const char * const context_name[] = { |
515afda2 | 1287 | "pseudo-block", |
f31522f3 | 1288 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1289 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1290 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1291 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1292 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1293 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1294 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1295 | "subroutine", |
76753e7f | 1296 | "format", |
515afda2 | 1297 | "eval", |
515afda2 | 1298 | "substitution", |
515afda2 NC |
1299 | }; |
1300 | ||
76e3520e | 1301 | STATIC I32 |
5db1eb8d | 1302 | S_dopoptolabel(pTHX_ const char *label, STRLEN len, U32 flags) |
a0d0e21e | 1303 | { |
97aff369 | 1304 | dVAR; |
eb578fdb | 1305 | I32 i; |
a0d0e21e | 1306 | |
7918f24d NC |
1307 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1308 | ||
a0d0e21e | 1309 | for (i = cxstack_ix; i >= 0; i--) { |
eb578fdb | 1310 | const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1311 | switch (CxTYPE(cx)) { |
a0d0e21e | 1312 | case CXt_SUBST: |
a0d0e21e | 1313 | case CXt_SUB: |
7766f137 | 1314 | case CXt_FORMAT: |
a0d0e21e | 1315 | case CXt_EVAL: |
0a753a76 | 1316 | case CXt_NULL: |
dcbac5bb | 1317 | /* diag_listed_as: Exiting subroutine via %s */ |
a2a5de95 NC |
1318 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1319 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1320 | if (CxTYPE(cx) == CXt_NULL) |
1321 | return -1; | |
1322 | break; | |
c6fdafd0 | 1323 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1324 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1325 | case CXt_LOOP_FOR: |
1326 | case CXt_LOOP_PLAIN: | |
7e8f1eac | 1327 | { |
5db1eb8d BF |
1328 | STRLEN cx_label_len = 0; |
1329 | U32 cx_label_flags = 0; | |
1330 | const char *cx_label = CxLABEL_len_flags(cx, &cx_label_len, &cx_label_flags); | |
1331 | if (!cx_label || !( | |
1332 | ( (cx_label_flags & SVf_UTF8) != (flags & SVf_UTF8) ) ? | |
1333 | (flags & SVf_UTF8) | |
1334 | ? (bytes_cmp_utf8( | |
1335 | (const U8*)cx_label, cx_label_len, | |
1336 | (const U8*)label, len) == 0) | |
1337 | : (bytes_cmp_utf8( | |
1338 | (const U8*)label, len, | |
1339 | (const U8*)cx_label, cx_label_len) == 0) | |
eade7155 BF |
1340 | : (len == cx_label_len && ((cx_label == label) |
1341 | || memEQ(cx_label, label, len))) )) { | |
1c98cc53 | 1342 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1343 | (long)i, cx_label)); |
a0d0e21e LW |
1344 | continue; |
1345 | } | |
1c98cc53 | 1346 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1347 | return i; |
7e8f1eac | 1348 | } |
a0d0e21e LW |
1349 | } |
1350 | } | |
1351 | return i; | |
1352 | } | |
1353 | ||
0d863452 RH |
1354 | |
1355 | ||
e50aee73 | 1356 | I32 |
864dbfa3 | 1357 | Perl_dowantarray(pTHX) |
e50aee73 | 1358 | { |
97aff369 | 1359 | dVAR; |
f54cb97a | 1360 | const I32 gimme = block_gimme(); |
54310121 | 1361 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1362 | } | |
1363 | ||
1364 | I32 | |
864dbfa3 | 1365 | Perl_block_gimme(pTHX) |
54310121 | 1366 | { |
97aff369 | 1367 | dVAR; |
06b5626a | 1368 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1369 | if (cxix < 0) |
46fc3d4c | 1370 | return G_VOID; |
e50aee73 | 1371 | |
54310121 | 1372 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1373 | case G_VOID: |
1374 | return G_VOID; | |
54310121 | 1375 | case G_SCALAR: |
e50aee73 | 1376 | return G_SCALAR; |
54310121 | 1377 | case G_ARRAY: |
1378 | return G_ARRAY; | |
1379 | default: | |
cea2e8a9 | 1380 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
118e2215 | 1381 | assert(0); /* NOTREACHED */ |
d2719217 | 1382 | return 0; |
54310121 | 1383 | } |
e50aee73 AD |
1384 | } |
1385 | ||
78f9721b SM |
1386 | I32 |
1387 | Perl_is_lvalue_sub(pTHX) | |
1388 | { | |
97aff369 | 1389 | dVAR; |
06b5626a | 1390 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1391 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1392 | ||
bafb2adc NC |
1393 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1394 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1395 | else |
1396 | return 0; | |
1397 | } | |
1398 | ||
777d9014 FC |
1399 | /* only used by PUSHSUB */ |
1400 | I32 | |
1401 | Perl_was_lvalue_sub(pTHX) | |
1402 | { | |
1403 | dVAR; | |
1404 | const I32 cxix = dopoptosub(cxstack_ix-1); | |
1405 | assert(cxix >= 0); /* We should only be called from inside subs */ | |
1406 | ||
1407 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) | |
1408 | return CxLVAL(cxstack + cxix); | |
1409 | else | |
1410 | return 0; | |
1411 | } | |
1412 | ||
76e3520e | 1413 | STATIC I32 |
901017d6 | 1414 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1415 | { |
97aff369 | 1416 | dVAR; |
a0d0e21e | 1417 | I32 i; |
7918f24d NC |
1418 | |
1419 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1420 | ||
a0d0e21e | 1421 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1422 | const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1423 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1424 | default: |
1425 | continue; | |
1426 | case CXt_EVAL: | |
1427 | case CXt_SUB: | |
7766f137 | 1428 | case CXt_FORMAT: |
1c98cc53 | 1429 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1430 | return i; |
1431 | } | |
1432 | } | |
1433 | return i; | |
1434 | } | |
1435 | ||
76e3520e | 1436 | STATIC I32 |
cea2e8a9 | 1437 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1438 | { |
97aff369 | 1439 | dVAR; |
a0d0e21e | 1440 | I32 i; |
a0d0e21e | 1441 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1442 | const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1443 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1444 | default: |
1445 | continue; | |
1446 | case CXt_EVAL: | |
1c98cc53 | 1447 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1448 | return i; |
1449 | } | |
1450 | } | |
1451 | return i; | |
1452 | } | |
1453 | ||
76e3520e | 1454 | STATIC I32 |
cea2e8a9 | 1455 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1456 | { |
97aff369 | 1457 | dVAR; |
a0d0e21e | 1458 | I32 i; |
a0d0e21e | 1459 | for (i = startingblock; i >= 0; i--) { |
eb578fdb | 1460 | const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1461 | switch (CxTYPE(cx)) { |
a0d0e21e | 1462 | case CXt_SUBST: |
a0d0e21e | 1463 | case CXt_SUB: |
7766f137 | 1464 | case CXt_FORMAT: |
a0d0e21e | 1465 | case CXt_EVAL: |
0a753a76 | 1466 | case CXt_NULL: |
dcbac5bb | 1467 | /* diag_listed_as: Exiting subroutine via %s */ |
a2a5de95 NC |
1468 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1469 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1470 | if ((CxTYPE(cx)) == CXt_NULL) |
1471 | return -1; | |
1472 | break; | |
c6fdafd0 | 1473 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1474 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1475 | case CXt_LOOP_FOR: |
1476 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1477 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1478 | return i; |
1479 | } | |
1480 | } | |
1481 | return i; | |
1482 | } | |
1483 | ||
0d863452 RH |
1484 | STATIC I32 |
1485 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1486 | { | |
97aff369 | 1487 | dVAR; |
0d863452 RH |
1488 | I32 i; |
1489 | for (i = startingblock; i >= 0; i--) { | |
eb578fdb | 1490 | const PERL_CONTEXT *cx = &cxstack[i]; |
0d863452 RH |
1491 | switch (CxTYPE(cx)) { |
1492 | default: | |
1493 | continue; | |
1494 | case CXt_GIVEN: | |
1c98cc53 | 1495 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1496 | return i; |
3b719c58 NC |
1497 | case CXt_LOOP_PLAIN: |
1498 | assert(!CxFOREACHDEF(cx)); | |
1499 | break; | |
c6fdafd0 | 1500 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1501 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1502 | case CXt_LOOP_FOR: |
0d863452 | 1503 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1504 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1505 | return i; |
1506 | } | |
1507 | } | |
1508 | } | |
1509 | return i; | |
1510 | } | |
1511 | ||
1512 | STATIC I32 | |
1513 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1514 | { | |
97aff369 | 1515 | dVAR; |
0d863452 RH |
1516 | I32 i; |
1517 | for (i = startingblock; i >= 0; i--) { | |
eb578fdb | 1518 | const PERL_CONTEXT *cx = &cxstack[i]; |
0d863452 RH |
1519 | switch (CxTYPE(cx)) { |
1520 | default: | |
1521 | continue; | |
1522 | case CXt_WHEN: | |
1c98cc53 | 1523 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1524 | return i; |
1525 | } | |
1526 | } | |
1527 | return i; | |
1528 | } | |
1529 | ||
a0d0e21e | 1530 | void |
864dbfa3 | 1531 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1532 | { |
97aff369 | 1533 | dVAR; |
a0d0e21e LW |
1534 | I32 optype; |
1535 | ||
f144f1e3 DM |
1536 | if (!PL_curstackinfo) /* can happen if die during thread cloning */ |
1537 | return; | |
1538 | ||
a0d0e21e | 1539 | while (cxstack_ix > cxix) { |
b0d9ce38 | 1540 | SV *sv; |
eb578fdb | 1541 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1542 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1543 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1544 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1545 | case CXt_SUBST: |
1546 | POPSUBST(cx); | |
1547 | continue; /* not break */ | |
a0d0e21e | 1548 | case CXt_SUB: |
b0d9ce38 GS |
1549 | POPSUB(cx,sv); |
1550 | LEAVESUB(sv); | |
a0d0e21e LW |
1551 | break; |
1552 | case CXt_EVAL: | |
1553 | POPEVAL(cx); | |
1554 | break; | |
c6fdafd0 | 1555 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1556 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1557 | case CXt_LOOP_FOR: |
1558 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1559 | POPLOOP(cx); |
1560 | break; | |
0a753a76 | 1561 | case CXt_NULL: |
a0d0e21e | 1562 | break; |
7766f137 GS |
1563 | case CXt_FORMAT: |
1564 | POPFORMAT(cx); | |
1565 | break; | |
a0d0e21e | 1566 | } |
c90c0ff4 | 1567 | cxstack_ix--; |
a0d0e21e | 1568 | } |
1b6737cc | 1569 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1570 | } |
1571 | ||
5a844595 GS |
1572 | void |
1573 | Perl_qerror(pTHX_ SV *err) | |
1574 | { | |
97aff369 | 1575 | dVAR; |
7918f24d NC |
1576 | |
1577 | PERL_ARGS_ASSERT_QERROR; | |
1578 | ||
6b2fb389 DM |
1579 | if (PL_in_eval) { |
1580 | if (PL_in_eval & EVAL_KEEPERR) { | |
ecad31f0 BF |
1581 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %"SVf, |
1582 | SVfARG(err)); | |
6b2fb389 DM |
1583 | } |
1584 | else | |
1585 | sv_catsv(ERRSV, err); | |
1586 | } | |
5a844595 GS |
1587 | else if (PL_errors) |
1588 | sv_catsv(PL_errors, err); | |
1589 | else | |
be2597df | 1590 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1591 | if (PL_parser) |
1592 | ++PL_parser->error_count; | |
5a844595 GS |
1593 | } |
1594 | ||
bb4c52e0 | 1595 | void |
c5df3096 | 1596 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1597 | { |
27da23d5 | 1598 | dVAR; |
c5df3096 | 1599 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1600 | U8 in_eval = PL_in_eval; |
c5df3096 | 1601 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1602 | |
96d9b9cd | 1603 | if (in_eval) { |
a0d0e21e | 1604 | I32 cxix; |
a0d0e21e | 1605 | I32 gimme; |
a0d0e21e | 1606 | |
22a30693 Z |
1607 | /* |
1608 | * Historically, perl used to set ERRSV ($@) early in the die | |
1609 | * process and rely on it not getting clobbered during unwinding. | |
1610 | * That sucked, because it was liable to get clobbered, so the | |
1611 | * setting of ERRSV used to emit the exception from eval{} has | |
1612 | * been moved to much later, after unwinding (see just before | |
1613 | * JMPENV_JUMP below). However, some modules were relying on the | |
1614 | * early setting, by examining $@ during unwinding to use it as | |
1615 | * a flag indicating whether the current unwinding was caused by | |
1616 | * an exception. It was never a reliable flag for that purpose, | |
1617 | * being totally open to false positives even without actual | |
1618 | * clobberage, but was useful enough for production code to | |
1619 | * semantically rely on it. | |
1620 | * | |
1621 | * We'd like to have a proper introspective interface that | |
1622 | * explicitly describes the reason for whatever unwinding | |
1623 | * operations are currently in progress, so that those modules | |
1624 | * work reliably and $@ isn't further overloaded. But we don't | |
1625 | * have one yet. In its absence, as a stopgap measure, ERRSV is | |
1626 | * now *additionally* set here, before unwinding, to serve as the | |
1627 | * (unreliable) flag that it used to. | |
1628 | * | |
1629 | * This behaviour is temporary, and should be removed when a | |
1630 | * proper way to detect exceptional unwinding has been developed. | |
1631 | * As of 2010-12, the authors of modules relying on the hack | |
1632 | * are aware of the issue, because the modules failed on | |
1633 | * perls 5.13.{1..7} which had late setting of $@ without this | |
1634 | * early-setting hack. | |
1635 | */ | |
1636 | if (!(in_eval & EVAL_KEEPERR)) { | |
1637 | SvTEMP_off(exceptsv); | |
1638 | sv_setsv(ERRSV, exceptsv); | |
1639 | } | |
1640 | ||
5a844595 GS |
1641 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1642 | && PL_curstackinfo->si_prev) | |
1643 | { | |
bac4b2ad | 1644 | dounwind(-1); |
d3acc0f7 | 1645 | POPSTACK; |
bac4b2ad | 1646 | } |
e336de0d | 1647 | |
a0d0e21e LW |
1648 | if (cxix >= 0) { |
1649 | I32 optype; | |
b6494f15 | 1650 | SV *namesv; |
eb578fdb | 1651 | PERL_CONTEXT *cx; |
901017d6 | 1652 | SV **newsp; |
8f89e5a9 Z |
1653 | COP *oldcop; |
1654 | JMPENV *restartjmpenv; | |
1655 | OP *restartop; | |
a0d0e21e LW |
1656 | |
1657 | if (cxix < cxstack_ix) | |
1658 | dounwind(cxix); | |
1659 | ||
3280af22 | 1660 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1661 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1662 | STRLEN msglen; |
96d9b9cd | 1663 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1664 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1665 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1666 | my_exit(1); |
1667 | } | |
1668 | POPEVAL(cx); | |
b6494f15 | 1669 | namesv = cx->blk_eval.old_namesv; |
8f89e5a9 Z |
1670 | oldcop = cx->blk_oldcop; |
1671 | restartjmpenv = cx->blk_eval.cur_top_env; | |
1672 | restartop = cx->blk_eval.retop; | |
a0d0e21e LW |
1673 | |
1674 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1675 | *++newsp = &PL_sv_undef; |
1676 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1677 | |
1678 | LEAVE; | |
748a9306 | 1679 | |
7fb6a879 GS |
1680 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1681 | * XXX it might be better to find a way to avoid messing with | |
1682 | * PL_curcop in save_re_context() instead, but this is a more | |
1683 | * minimal fix --GSAR */ | |
8f89e5a9 | 1684 | PL_curcop = oldcop; |
7fb6a879 | 1685 | |
7a2e2cd6 | 1686 | if (optype == OP_REQUIRE) { |
b6494f15 | 1687 | (void)hv_store(GvHVn(PL_incgv), |
ecad31f0 | 1688 | SvPVX_const(namesv), |
c60dbbc3 | 1689 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
27bcc0a7 | 1690 | &PL_sv_undef, 0); |
27e90453 DM |
1691 | /* note that unlike pp_entereval, pp_require isn't |
1692 | * supposed to trap errors. So now that we've popped the | |
1693 | * EVAL that pp_require pushed, and processed the error | |
1694 | * message, rethrow the error */ | |
ecad31f0 BF |
1695 | Perl_croak(aTHX_ "%"SVf"Compilation failed in require", |
1696 | SVfARG(exceptsv ? exceptsv : newSVpvs_flags("Unknown error\n", | |
1697 | SVs_TEMP))); | |
7a2e2cd6 | 1698 | } |
c5df3096 | 1699 | if (in_eval & EVAL_KEEPERR) { |
ecad31f0 BF |
1700 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %"SVf, |
1701 | SVfARG(exceptsv)); | |
96d9b9cd Z |
1702 | } |
1703 | else { | |
1704 | sv_setsv(ERRSV, exceptsv); | |
1705 | } | |
8f89e5a9 Z |
1706 | PL_restartjmpenv = restartjmpenv; |
1707 | PL_restartop = restartop; | |
bb4c52e0 | 1708 | JMPENV_JUMP(3); |
118e2215 | 1709 | assert(0); /* NOTREACHED */ |
a0d0e21e LW |
1710 | } |
1711 | } | |
87582a92 | 1712 | |
96d9b9cd | 1713 | write_to_stderr(exceptsv); |
f86702cc | 1714 | my_failure_exit(); |
118e2215 | 1715 | assert(0); /* NOTREACHED */ |
a0d0e21e LW |
1716 | } |
1717 | ||
1718 | PP(pp_xor) | |
1719 | { | |
97aff369 | 1720 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1721 | if (SvTRUE(left) != SvTRUE(right)) |
1722 | RETSETYES; | |
1723 | else | |
1724 | RETSETNO; | |
1725 | } | |
1726 | ||
8dff4fc5 BM |
1727 | /* |
1728 | =for apidoc caller_cx | |
1729 | ||
1730 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1731 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1732 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1733 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1734 | immediately-surrounding Perl code. | |
1735 | ||
1736 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1737 | behalf of the debugger. If the stack frame requested was a sub called by | |
1738 | C<DB::sub>, the return value will be the frame for the call to | |
1739 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1740 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1741 | frame for the sub call itself. | |
1742 | ||
1743 | =cut | |
1744 | */ | |
1745 | ||
1746 | const PERL_CONTEXT * | |
1747 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1748 | { |
eb578fdb KW |
1749 | I32 cxix = dopoptosub(cxstack_ix); |
1750 | const PERL_CONTEXT *cx; | |
1751 | const PERL_CONTEXT *ccstack = cxstack; | |
901017d6 | 1752 | const PERL_SI *top_si = PL_curstackinfo; |
27d41816 | 1753 | |
a0d0e21e | 1754 | for (;;) { |
2c375eb9 GS |
1755 | /* we may be in a higher stacklevel, so dig down deeper */ |
1756 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1757 | top_si = top_si->si_prev; | |
1758 | ccstack = top_si->si_cxstack; | |
1759 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1760 | } | |
8dff4fc5 BM |
1761 | if (cxix < 0) |
1762 | return NULL; | |
f2a7f298 DG |
1763 | /* caller() should not report the automatic calls to &DB::sub */ |
1764 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1765 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1766 | count++; |
1767 | if (!count--) | |
1768 | break; | |
2c375eb9 | 1769 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1770 | } |
2c375eb9 GS |
1771 | |
1772 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1773 | if (dbcxp) *dbcxp = cx; |
1774 | ||
7766f137 | 1775 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1776 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1777 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1778 | field below is defined for any cx. */ |
f2a7f298 DG |
1779 | /* caller() should not report the automatic calls to &DB::sub */ |
1780 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1781 | cx = &ccstack[dbcxix]; |
06a5b730 | 1782 | } |
1783 | ||
8dff4fc5 BM |
1784 | return cx; |
1785 | } | |
1786 | ||
1787 | PP(pp_caller) | |
1788 | { | |
1789 | dVAR; | |
1790 | dSP; | |
eb578fdb | 1791 | const PERL_CONTEXT *cx; |
8dff4fc5 BM |
1792 | const PERL_CONTEXT *dbcx; |
1793 | I32 gimme; | |
d527ce7c | 1794 | const HEK *stash_hek; |
8dff4fc5 | 1795 | I32 count = 0; |
ce0b554b | 1796 | bool has_arg = MAXARG && TOPs; |
8dff4fc5 | 1797 | |
ce0b554b FC |
1798 | if (MAXARG) { |
1799 | if (has_arg) | |
8dff4fc5 | 1800 | count = POPi; |
ce0b554b FC |
1801 | else (void)POPs; |
1802 | } | |
8dff4fc5 | 1803 | |
ce0b554b | 1804 | cx = caller_cx(count + !!(PL_op->op_private & OPpOFFBYONE), &dbcx); |
8dff4fc5 BM |
1805 | if (!cx) { |
1806 | if (GIMME != G_ARRAY) { | |
1807 | EXTEND(SP, 1); | |
1808 | RETPUSHUNDEF; | |
1809 | } | |
1810 | RETURN; | |
1811 | } | |
1812 | ||
fb55feef | 1813 | DEBUG_CX("CALLER"); |
d0279c7c | 1814 | assert(CopSTASH(cx->blk_oldcop)); |
e7886211 FC |
1815 | stash_hek = SvTYPE(CopSTASH(cx->blk_oldcop)) == SVt_PVHV |
1816 | ? HvNAME_HEK((HV*)CopSTASH(cx->blk_oldcop)) | |
1817 | : NULL; | |
a0d0e21e | 1818 | if (GIMME != G_ARRAY) { |
27d41816 | 1819 | EXTEND(SP, 1); |
d527ce7c | 1820 | if (!stash_hek) |
3280af22 | 1821 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1822 | else { |
1823 | dTARGET; | |
d527ce7c | 1824 | sv_sethek(TARG, stash_hek); |
49d8d3a1 MB |
1825 | PUSHs(TARG); |
1826 | } | |
a0d0e21e LW |
1827 | RETURN; |
1828 | } | |
a0d0e21e | 1829 | |
b3ca2e83 | 1830 | EXTEND(SP, 11); |
27d41816 | 1831 | |
d527ce7c | 1832 | if (!stash_hek) |
3280af22 | 1833 | PUSHs(&PL_sv_undef); |
d527ce7c BF |
1834 | else { |
1835 | dTARGET; | |
1836 | sv_sethek(TARG, stash_hek); | |
1837 | PUSHTARG; | |
1838 | } | |
6e449a3a MHM |
1839 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); |
1840 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
ce0b554b | 1841 | if (!has_arg) |
a0d0e21e | 1842 | RETURN; |
7766f137 | 1843 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1844 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1845 | /* So is ccstack[dbcxix]. */ |
81ed78b2 | 1846 | if (cvgv && isGV(cvgv)) { |
561b68a9 | 1847 | SV * const sv = newSV(0); |
c445ea15 | 1848 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1849 | mPUSHs(sv); |
bf38a478 | 1850 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1851 | } |
1852 | else { | |
84bafc02 | 1853 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1854 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1855 | } |
a0d0e21e LW |
1856 | } |
1857 | else { | |
84bafc02 | 1858 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1859 | mPUSHi(0); |
a0d0e21e | 1860 | } |
54310121 | 1861 | gimme = (I32)cx->blk_gimme; |
1862 | if (gimme == G_VOID) | |
3280af22 | 1863 | PUSHs(&PL_sv_undef); |
54310121 | 1864 | else |
98625aca | 1865 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1866 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1867 | /* eval STRING */ |
85a64632 | 1868 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
19bcb54e FC |
1869 | PUSHs(newSVpvn_flags(SvPVX(cx->blk_eval.cur_text), |
1870 | SvCUR(cx->blk_eval.cur_text)-2, | |
1871 | SvUTF8(cx->blk_eval.cur_text)|SVs_TEMP)); | |
3280af22 | 1872 | PUSHs(&PL_sv_no); |
0f79a09d | 1873 | } |
811a4de9 | 1874 | /* require */ |
0f79a09d | 1875 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1876 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1877 | PUSHs(&PL_sv_yes); |
06a5b730 | 1878 | } |
811a4de9 GS |
1879 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1880 | else { | |
1881 | PUSHs(&PL_sv_undef); | |
1882 | PUSHs(&PL_sv_undef); | |
1883 | } | |
4633a7c4 | 1884 | } |
a682de96 GS |
1885 | else { |
1886 | PUSHs(&PL_sv_undef); | |
1887 | PUSHs(&PL_sv_undef); | |
1888 | } | |
bafb2adc | 1889 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1890 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1891 | { |
66a1b24b AL |
1892 | AV * const ary = cx->blk_sub.argarray; |
1893 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1894 | |
e1a80902 | 1895 | Perl_init_dbargs(aTHX); |
a0d0e21e | 1896 | |
3280af22 NIS |
1897 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1898 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1899 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1900 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1901 | } |
6e449a3a | 1902 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1903 | { |
1904 | SV * mask ; | |
72dc9ed5 | 1905 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1906 | |
f07626ad | 1907 | if (old_warnings == pWARN_NONE) |
e476b1b5 | 1908 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
f07626ad FC |
1909 | else if (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0) |
1910 | mask = &PL_sv_undef ; | |
ac27b0f5 | 1911 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1912 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1913 | /* Get the bit mask for $warnings::Bits{all}, because | |
1914 | * it could have been extended by warnings::register */ | |
1915 | SV **bits_all; | |
6673a63c | 1916 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1917 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1918 | mask = newSVsv(*bits_all); |
1919 | } | |
1920 | else { | |
1921 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1922 | } | |
1923 | } | |
e476b1b5 | 1924 | else |
72dc9ed5 | 1925 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1926 | mPUSHs(mask); |
e476b1b5 | 1927 | } |
b3ca2e83 | 1928 | |
c28fe1ec | 1929 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
20439bc7 | 1930 | sv_2mortal(newRV_noinc(MUTABLE_SV(cop_hints_2hv(cx->blk_oldcop, 0)))) |
b3ca2e83 | 1931 | : &PL_sv_undef); |
a0d0e21e LW |
1932 | RETURN; |
1933 | } | |
1934 | ||
a0d0e21e LW |
1935 | PP(pp_reset) |
1936 | { | |
97aff369 | 1937 | dVAR; |
39644a26 | 1938 | dSP; |
ca826051 FC |
1939 | const char * tmps; |
1940 | STRLEN len = 0; | |
1941 | if (MAXARG < 1 || (!TOPs && !POPs)) | |
1942 | tmps = NULL, len = 0; | |
1943 | else | |
1944 | tmps = SvPVx_const(POPs, len); | |
1945 | sv_resetpvn(tmps, len, CopSTASH(PL_curcop)); | |
3280af22 | 1946 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1947 | RETURN; |
1948 | } | |
1949 | ||
dd2155a4 DM |
1950 | /* like pp_nextstate, but used instead when the debugger is active */ |
1951 | ||
a0d0e21e LW |
1952 | PP(pp_dbstate) |
1953 | { | |
27da23d5 | 1954 | dVAR; |
533c011a | 1955 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1956 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1957 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1958 | FREETMPS; |
1959 | ||
f410a211 NC |
1960 | PERL_ASYNC_CHECK(); |
1961 | ||
5df8de69 DM |
1962 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1963 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1964 | { |
39644a26 | 1965 | dSP; |
eb578fdb | 1966 | PERL_CONTEXT *cx; |
f54cb97a | 1967 | const I32 gimme = G_ARRAY; |
eb160463 | 1968 | U8 hasargs; |
0bd48802 | 1969 | GV * const gv = PL_DBgv; |
432d4561 JL |
1970 | CV * cv = NULL; |
1971 | ||
1972 | if (gv && isGV_with_GP(gv)) | |
1973 | cv = GvCV(gv); | |
a0d0e21e | 1974 | |
c2cb6f77 | 1975 | if (!cv || (!CvROOT(cv) && !CvXSUB(cv))) |
cea2e8a9 | 1976 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1977 | |
aea4f609 DM |
1978 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1979 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1980 | return NORMAL; |
748a9306 | 1981 | |
a57c6685 | 1982 | ENTER; |
4633a7c4 LW |
1983 | SAVETMPS; |
1984 | ||
3280af22 | 1985 | SAVEI32(PL_debug); |
55497cff | 1986 | SAVESTACK_POS(); |
3280af22 | 1987 | PL_debug = 0; |
748a9306 | 1988 | hasargs = 0; |
924508f0 | 1989 | SPAGAIN; |
748a9306 | 1990 | |
aed2304a | 1991 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1992 | PUSHMARK(SP); |
1993 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
c127bd3a | 1994 | FREETMPS; |
a57c6685 | 1995 | LEAVE; |
c127bd3a SF |
1996 | return NORMAL; |
1997 | } | |
1998 | else { | |
1999 | PUSHBLOCK(cx, CXt_SUB, SP); | |
2000 | PUSHSUB_DB(cx); | |
2001 | cx->blk_sub.retop = PL_op->op_next; | |
2002 | CvDEPTH(cv)++; | |
9d976ff5 FC |
2003 | if (CvDEPTH(cv) >= 2) { |
2004 | PERL_STACK_OVERFLOW_CHECK(); | |
2005 | pad_push(CvPADLIST(cv), CvDEPTH(cv)); | |
2006 | } | |
c127bd3a | 2007 | SAVECOMPPAD(); |
9d976ff5 | 2008 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv)); |
c127bd3a SF |
2009 | RETURNOP(CvSTART(cv)); |
2010 | } | |
a0d0e21e LW |
2011 | } |
2012 | else | |
2013 | return NORMAL; | |
2014 | } | |
2015 | ||
b9d76716 VP |
2016 | STATIC SV ** |
2017 | S_adjust_stack_on_leave(pTHX_ SV **newsp, SV **sp, SV **mark, I32 gimme, U32 flags) | |
2018 | { | |
9a214eec | 2019 | bool padtmp = 0; |
b9d76716 VP |
2020 | PERL_ARGS_ASSERT_ADJUST_STACK_ON_LEAVE; |
2021 | ||
9a214eec DM |
2022 | if (flags & SVs_PADTMP) { |
2023 | flags &= ~SVs_PADTMP; | |
2024 | padtmp = 1; | |
2025 | } | |
b9d76716 VP |
2026 | if (gimme == G_SCALAR) { |
2027 | if (MARK < SP) | |
9a214eec DM |
2028 | *++newsp = ((SvFLAGS(*SP) & flags) || (padtmp && SvPADTMP(*SP))) |
2029 | ? *SP : sv_mortalcopy(*SP); | |
b9d76716 VP |
2030 | else { |
2031 | /* MEXTEND() only updates MARK, so reuse it instead of newsp. */ | |
2032 | MARK = newsp; | |
2033 | MEXTEND(MARK, 1); | |
2034 | *++MARK = &PL_sv_undef; | |
2035 | return MARK; | |
2036 | } | |
2037 | } | |
2038 | else if (gimme == G_ARRAY) { | |
2039 | /* in case LEAVE wipes old return values */ | |
2040 | while (++MARK <= SP) { | |
9a214eec | 2041 | if ((SvFLAGS(*MARK) & flags) || (padtmp && SvPADTMP(*MARK))) |
b9d76716 VP |
2042 | *++newsp = *MARK; |
2043 | else { | |
2044 | *++newsp = sv_mortalcopy(*MARK); | |
2045 | TAINT_NOT; /* Each item is independent */ | |
2046 | } | |
2047 | } | |
2048 | /* When this function was called with MARK == newsp, we reach this | |
2049 | * point with SP == newsp. */ | |
2050 | } | |
2051 | ||
2052 | return newsp; | |
2053 | } | |
2054 | ||
2b9a6457 VP |
2055 | PP(pp_enter) |
2056 | { | |
2057 | dVAR; dSP; | |
eb578fdb | 2058 | PERL_CONTEXT *cx; |
7c2d9d03 | 2059 | I32 gimme = GIMME_V; |
2b9a6457 VP |
2060 | |
2061 | ENTER_with_name("block"); | |
2062 | ||
2063 | SAVETMPS; | |
2064 | PUSHBLOCK(cx, CXt_BLOCK, SP); | |
2065 | ||
2066 | RETURN; | |
2067 | } | |
2068 | ||
2069 | PP(pp_leave) | |
2070 | { | |
2071 | dVAR; dSP; | |
eb578fdb | 2072 | PERL_CONTEXT *cx; |
2b9a6457 VP |
2073 | SV **newsp; |
2074 | PMOP *newpm; | |
2075 | I32 gimme; | |
2076 | ||
2077 | if (PL_op->op_flags & OPf_SPECIAL) { | |
2078 | cx = &cxstack[cxstack_ix]; | |
2079 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ | |
2080 | } | |
2081 | ||
2082 | POPBLOCK(cx,newpm); | |
2083 | ||
2084 | gimme = OP_GIMME(PL_op, (cxstack_ix >= 0) ? gimme : G_SCALAR); | |
2085 | ||
2086 | TAINT_NOT; | |
f02ea43c | 2087 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
2b9a6457 VP |
2088 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
2089 | ||
2090 | LEAVE_with_name("block"); | |
2091 | ||
2092 | RETURN; | |
2093 | } | |
2094 | ||
a0d0e21e LW |
2095 | PP(pp_enteriter) |
2096 | { | |
27da23d5 | 2097 | dVAR; dSP; dMARK; |
eb578fdb | 2098 | PERL_CONTEXT *cx; |
f54cb97a | 2099 | const I32 gimme = GIMME_V; |
df530c37 | 2100 | void *itervar; /* location of the iteration variable */ |
840fe433 | 2101 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 2102 | |
d343c3ef | 2103 | ENTER_with_name("loop1"); |
4633a7c4 LW |
2104 | SAVETMPS; |
2105 | ||
aafca525 DM |
2106 | if (PL_op->op_targ) { /* "my" variable */ |
2107 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
2108 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
2109 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
2110 | SVs_PADSTALE, SVs_PADSTALE); | |
2111 | } | |
09edbca0 | 2112 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 2113 | #ifdef USE_ITHREADS |
df530c37 | 2114 | itervar = PL_comppad; |
89e00a7c | 2115 | #else |
aafca525 | 2116 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 2117 | #endif |
54b9620d | 2118 | } |
aafca525 | 2119 | else { /* symbol table variable */ |
159b6efe | 2120 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
2121 | SV** svp = &GvSV(gv); |
2122 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 2123 | *svp = newSV(0); |
df530c37 | 2124 | itervar = (void *)gv; |
54b9620d | 2125 | } |
4633a7c4 | 2126 | |
0d863452 RH |
2127 | if (PL_op->op_private & OPpITER_DEF) |
2128 | cxtype |= CXp_FOR_DEF; | |
2129 | ||
d343c3ef | 2130 | ENTER_with_name("loop2"); |
a0d0e21e | 2131 | |
7766f137 | 2132 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 2133 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 2134 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
2135 | SV *maybe_ary = POPs; |
2136 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 2137 | dPOPss; |
d01136d6 | 2138 | SV * const right = maybe_ary; |
984a4bea RD |
2139 | SvGETMAGIC(sv); |
2140 | SvGETMAGIC(right); | |
4fe3f0fa | 2141 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2142 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2143 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2144 | /* Make sure that no-one re-orders cop.h and breaks our | |
2145 | assumptions */ | |
2146 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 | 2147 | #ifdef NV_PRESERVES_UV |
f52e41ad FC |
2148 | if ((SvOK(sv) && ((SvNV_nomg(sv) < (NV)IV_MIN) || |
2149 | (SvNV_nomg(sv) > (NV)IV_MAX))) | |
a2309040 | 2150 | || |
f52e41ad FC |
2151 | (SvOK(right) && ((SvNV_nomg(right) > (NV)IV_MAX) || |
2152 | (SvNV_nomg(right) < (NV)IV_MIN)))) | |
a2309040 | 2153 | #else |
f52e41ad | 2154 | if ((SvOK(sv) && ((SvNV_nomg(sv) <= (NV)IV_MIN) |
a2309040 | 2155 | || |
f52e41ad FC |
2156 | ((SvNV_nomg(sv) > 0) && |
2157 | ((SvUV_nomg(sv) > (UV)IV_MAX) || | |
2158 | (SvNV_nomg(sv) > (NV)UV_MAX))))) | |
a2309040 | 2159 | || |
f52e41ad | 2160 | (SvOK(right) && ((SvNV_nomg(right) <= (NV)IV_MIN) |
a2309040 | 2161 | || |
f52e41ad FC |
2162 | ((SvNV_nomg(right) > 0) && |
2163 | ((SvUV_nomg(right) > (UV)IV_MAX) || | |
2164 | (SvNV_nomg(right) > (NV)UV_MAX)) | |
2165 | )))) | |
a2309040 | 2166 | #endif |
076d9a11 | 2167 | DIE(aTHX_ "Range iterator outside integer range"); |
f52e41ad FC |
2168 | cx->blk_loop.state_u.lazyiv.cur = SvIV_nomg(sv); |
2169 | cx->blk_loop.state_u.lazyiv.end = SvIV_nomg(right); | |
d4665a05 DM |
2170 | #ifdef DEBUGGING |
2171 | /* for correct -Dstv display */ | |
2172 | cx->blk_oldsp = sp - PL_stack_base; | |
2173 | #endif | |
89ea2908 | 2174 | } |
3f63a782 | 2175 | else { |
d01136d6 BS |
2176 | cx->cx_type &= ~CXTYPEMASK; |
2177 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2178 | /* Make sure that no-one re-orders cop.h and breaks our | |
2179 | assumptions */ | |
2180 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2181 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2182 | cx->blk_loop.state_u.lazysv.end = right; | |
2183 | SvREFCNT_inc(right); | |
2184 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2185 | /* This will do the upgrade to SVt_PV, and warn if the value |
2186 | is uninitialised. */ | |
10516c54 | 2187 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2188 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2189 | to replace !SvOK() with a pointer to "". */ | |
2190 | if (!SvOK(right)) { | |
2191 | SvREFCNT_dec(right); | |
d01136d6 | 2192 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2193 | } |
3f63a782 | 2194 | } |
89ea2908 | 2195 | } |
d01136d6 | 2196 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2197 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2198 | SvREFCNT_inc(maybe_ary); |
2199 | cx->blk_loop.state_u.ary.ix = | |
2200 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2201 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2202 | -1; | |
ef3e5ea9 | 2203 | } |
89ea2908 | 2204 | } |
d01136d6 BS |
2205 | else { /* iterating over items on the stack */ |
2206 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2207 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2208 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2209 | } |
2210 | else { | |
d01136d6 | 2211 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2212 | } |
4633a7c4 | 2213 | } |
a0d0e21e LW |
2214 | |
2215 | RETURN; | |
2216 | } | |
2217 | ||
2218 | PP(pp_enterloop) | |
2219 | { | |
27da23d5 | 2220 | dVAR; dSP; |
eb578fdb | 2221 | PERL_CONTEXT *cx; |
f54cb97a | 2222 | const I32 gimme = GIMME_V; |
a0d0e21e | 2223 | |
d343c3ef | 2224 | ENTER_with_name("loop1"); |
a0d0e21e | 2225 | SAVETMPS; |
d343c3ef | 2226 | ENTER_with_name("loop2"); |
a0d0e21e | 2227 | |
3b719c58 NC |
2228 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2229 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2230 | |
2231 | RETURN; | |
2232 | } | |
2233 | ||
2234 | PP(pp_leaveloop) | |
2235 | { | |
27da23d5 | 2236 | dVAR; dSP; |
eb578fdb | 2237 | PERL_CONTEXT *cx; |
a0d0e21e LW |
2238 | I32 gimme; |
2239 | SV **newsp; | |
2240 | PMOP *newpm; | |
2241 | SV **mark; | |
2242 | ||
2243 | POPBLOCK(cx,newpm); | |
3b719c58 | 2244 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2245 | mark = newsp; |
a8bba7fa | 2246 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2247 | |
a1f49e72 | 2248 | TAINT_NOT; |
b9d76716 | 2249 | SP = adjust_stack_on_leave(newsp, SP, MARK, gimme, 0); |
f86702cc | 2250 | PUTBACK; |
2251 | ||
a8bba7fa | 2252 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2253 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2254 | |
d343c3ef GG |
2255 | LEAVE_with_name("loop2"); |
2256 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2257 | |
f86702cc | 2258 | return NORMAL; |
a0d0e21e LW |
2259 | } |
2260 | ||
3bdf583b FC |
2261 | STATIC void |
2262 | S_return_lvalues(pTHX_ SV **mark, SV **sp, SV **newsp, I32 gimme, | |
d25b0d7b | 2263 | PERL_CONTEXT *cx, PMOP *newpm) |
3bdf583b | 2264 | { |
80422e24 | 2265 | const bool ref = !!(CxLVAL(cx) & OPpENTERSUB_INARGS); |
3bdf583b | 2266 | if (gimme == G_SCALAR) { |
d25b0d7b FC |
2267 | if (CxLVAL(cx) && !ref) { /* Leave it as it is if we can. */ |
2268 | SV *sv; | |
001de122 | 2269 | const char *what = NULL; |
d25b0d7b FC |
2270 | if (MARK < SP) { |
2271 | assert(MARK+1 == SP); | |
2272 | if ((SvPADTMP(TOPs) || | |
2273 | (SvFLAGS(TOPs) & (SVf_READONLY | SVf_FAKE)) | |
2274 | == SVf_READONLY | |
2275 | ) && | |
2276 | !SvSMAGICAL(TOPs)) { | |
001de122 | 2277 | what = |
d25b0d7b | 2278 | SvREADONLY(TOPs) ? (TOPs == &PL_sv_undef) ? "undef" |
001de122 | 2279 | : "a readonly value" : "a temporary"; |
d25b0d7b | 2280 | } |
001de122 | 2281 | else goto copy_sv; |
d25b0d7b FC |
2282 | } |
2283 | else { | |
2284 | /* sub:lvalue{} will take us here. */ | |
001de122 | 2285 | what = "undef"; |
d25b0d7b | 2286 | } |
001de122 FC |
2287 | LEAVE; |
2288 | cxstack_ix--; | |
2289 | POPSUB(cx,sv); | |
2290 | PL_curpm = newpm; | |
2291 | LEAVESUB(sv); | |
2292 | Perl_croak(aTHX_ | |
2293 | "Can't return %s from lvalue subroutine", what | |
2294 | ); | |
d25b0d7b | 2295 | } |
93905212 | 2296 | if (MARK < SP) { |
a5ad7a5a | 2297 | copy_sv: |
3bdf583b | 2298 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
5811c07e | 2299 | if (!SvPADTMP(*SP)) { |
3bdf583b FC |
2300 | *++newsp = SvREFCNT_inc(*SP); |
2301 | FREETMPS; | |
2302 | sv_2mortal(*newsp); | |
5811c07e FC |
2303 | } |
2304 | else { | |
2305 | /* FREETMPS could clobber it */ | |
2306 | SV *sv = SvREFCNT_inc(*SP); | |
2307 | FREETMPS; | |
2308 | *++newsp = sv_mortalcopy(sv); | |
2309 | SvREFCNT_dec(sv); | |
2310 | } | |
3bdf583b FC |
2311 | } |
2312 | else | |
e08be60b | 2313 | *++newsp = |
5811c07e FC |
2314 | SvPADTMP(*SP) |
2315 | ? sv_mortalcopy(*SP) | |
2316 | : !SvTEMP(*SP) | |
e08be60b FC |
2317 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*SP)) |
2318 | : *SP; | |
3bdf583b | 2319 | } |
0d235c77 FC |
2320 | else { |
2321 | EXTEND(newsp,1); | |
3bdf583b | 2322 | *++newsp = &PL_sv_undef; |
0d235c77 | 2323 | } |
0e9700df | 2324 | if (CxLVAL(cx) & OPpDEREF) { |
767eda44 FC |
2325 | SvGETMAGIC(TOPs); |
2326 | if (!SvOK(TOPs)) { | |
0e9700df | 2327 | TOPs = vivify_ref(TOPs, CxLVAL(cx) & OPpDEREF); |
767eda44 FC |
2328 | } |
2329 | } | |
3bdf583b FC |
2330 | } |
2331 | else if (gimme == G_ARRAY) { | |
0e9700df | 2332 | assert (!(CxLVAL(cx) & OPpDEREF)); |
80422e24 | 2333 | if (ref || !CxLVAL(cx)) |
e08be60b FC |
2334 | while (++MARK <= SP) |
2335 | *++newsp = | |
5811c07e | 2336 | SvFLAGS(*MARK) & SVs_PADTMP |
80422e24 | 2337 | ? sv_mortalcopy(*MARK) |
5811c07e FC |
2338 | : SvTEMP(*MARK) |
2339 | ? *MARK | |
80422e24 | 2340 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); |
e08be60b | 2341 | else while (++MARK <= SP) { |
d25b0d7b FC |
2342 | if (*MARK != &PL_sv_undef |
2343 | && (SvPADTMP(*MARK) | |
2344 | || (SvFLAGS(*MARK) & (SVf_READONLY|SVf_FAKE)) | |
2345 | == SVf_READONLY | |
2346 | ) | |
2347 | ) { | |
2348 | SV *sv; | |
2349 | /* Might be flattened array after $#array = */ | |
2350 | PUTBACK; | |
2351 | LEAVE; | |
2352 | cxstack_ix--; | |
2353 | POPSUB(cx,sv); | |
2354 | PL_curpm = newpm; | |
2355 | LEAVESUB(sv); | |
ae917476 | 2356 | /* diag_listed_as: Can't return %s from lvalue subroutine */ |
d25b0d7b FC |
2357 | Perl_croak(aTHX_ |
2358 | "Can't return a %s from lvalue subroutine", | |
2359 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); | |
2360 | } | |
2361 | else | |
4bee03f8 FC |
2362 | *++newsp = |
2363 | SvTEMP(*MARK) | |
2364 | ? *MARK | |
2365 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); | |
3bdf583b FC |
2366 | } |
2367 | } | |
2368 | PL_stack_sp = newsp; | |
2369 | } | |
2370 | ||
a0d0e21e LW |
2371 | PP(pp_return) |
2372 | { | |
27da23d5 | 2373 | dVAR; dSP; dMARK; |
eb578fdb | 2374 | PERL_CONTEXT *cx; |
f86702cc | 2375 | bool popsub2 = FALSE; |
b45de488 | 2376 | bool clear_errsv = FALSE; |
fa1e92c4 | 2377 | bool lval = FALSE; |
a0d0e21e LW |
2378 | I32 gimme; |
2379 | SV **newsp; | |
2380 | PMOP *newpm; | |
2381 | I32 optype = 0; | |
b6494f15 | 2382 | SV *namesv; |
b0d9ce38 | 2383 | SV *sv; |
b263a1ad | 2384 | OP *retop = NULL; |
a0d0e21e | 2385 | |
0bd48802 AL |
2386 | const I32 cxix = dopoptosub(cxstack_ix); |
2387 | ||
9850bf21 RH |
2388 | if (cxix < 0) { |
2389 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2390 | * sort block, which is a CXt_NULL | |
2391 | * not a CXt_SUB */ | |
2392 | dounwind(0); | |
d7507f74 RH |
2393 | PL_stack_base[1] = *PL_stack_sp; |
2394 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2395 | return 0; |
2396 | } | |
9850bf21 RH |
2397 | else |
2398 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2399 | } |
a0d0e21e LW |
2400 | if (cxix < cxstack_ix) |
2401 | dounwind(cxix); | |
2402 | ||
d7507f74 RH |
2403 | if (CxMULTICALL(&cxstack[cxix])) { |
2404 | gimme = cxstack[cxix].blk_gimme; | |
2405 | if (gimme == G_VOID) | |
2406 | PL_stack_sp = PL_stack_base; | |
2407 | else if (gimme == G_SCALAR) { | |
2408 | PL_stack_base[1] = *PL_stack_sp; | |
2409 | PL_stack_sp = PL_stack_base + 1; | |
2410 | } | |
9850bf21 | 2411 | return 0; |
d7507f74 | 2412 | } |
9850bf21 | 2413 | |
a0d0e21e | 2414 | POPBLOCK(cx,newpm); |
6b35e009 | 2415 | switch (CxTYPE(cx)) { |
a0d0e21e | 2416 | case CXt_SUB: |
f86702cc | 2417 | popsub2 = TRUE; |
fa1e92c4 | 2418 | lval = !!CvLVALUE(cx->blk_sub.cv); |
f39bc417 | 2419 | retop = cx->blk_sub.retop; |
5dd42e15 | 2420 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2421 | break; |
2422 | case CXt_EVAL: | |
b45de488 GS |
2423 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2424 | clear_errsv = TRUE; | |
a0d0e21e | 2425 | POPEVAL(cx); |
b6494f15 | 2426 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2427 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2428 | if (CxTRYBLOCK(cx)) |
2429 | break; | |
748a9306 LW |
2430 | if (optype == OP_REQUIRE && |
2431 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2432 | { | |
54310121 | 2433 | /* Unassume the success we assumed earlier. */ |
b6494f15 | 2434 | (void)hv_delete(GvHVn(PL_incgv), |
ecad31f0 | 2435 | SvPVX_const(namesv), |
c60dbbc3 | 2436 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 VP |
2437 | G_DISCARD); |
2438 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2439 | } |
a0d0e21e | 2440 | break; |
7766f137 GS |
2441 | case CXt_FORMAT: |
2442 | POPFORMAT(cx); | |
f39bc417 | 2443 | retop = cx->blk_sub.retop; |
7766f137 | 2444 | break; |
a0d0e21e | 2445 | default: |
5637ef5b | 2446 | DIE(aTHX_ "panic: return, type=%u", (unsigned) CxTYPE(cx)); |
a0d0e21e LW |
2447 | } |
2448 | ||
a1f49e72 | 2449 | TAINT_NOT; |
d25b0d7b | 2450 | if (lval) S_return_lvalues(aTHX_ MARK, SP, newsp, gimme, cx, newpm); |
3bdf583b FC |
2451 | else { |
2452 | if (gimme == G_SCALAR) { | |
a29cdaf0 IZ |
2453 | if (MARK < SP) { |
2454 | if (popsub2) { | |
a8bba7fa | 2455 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
6f48390a FC |
2456 | if (SvTEMP(TOPs) && SvREFCNT(TOPs) == 1 |
2457 | && !SvMAGICAL(TOPs)) { | |
a29cdaf0 IZ |
2458 | *++newsp = SvREFCNT_inc(*SP); |
2459 | FREETMPS; | |
2460 | sv_2mortal(*newsp); | |
959e3673 GS |
2461 | } |
2462 | else { | |
2463 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2464 | FREETMPS; |
959e3673 GS |
2465 | *++newsp = sv_mortalcopy(sv); |
2466 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2467 | } |
959e3673 | 2468 | } |
6f48390a FC |
2469 | else if (SvTEMP(*SP) && SvREFCNT(*SP) == 1 |
2470 | && !SvMAGICAL(*SP)) { | |
767eda44 | 2471 | *++newsp = *SP; |
767eda44 | 2472 | } |
959e3673 | 2473 | else |
767eda44 | 2474 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2475 | } |
2476 | else | |
a29cdaf0 | 2477 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2478 | } |
2479 | else | |
3280af22 | 2480 | *++newsp = &PL_sv_undef; |
3bdf583b FC |
2481 | } |
2482 | else if (gimme == G_ARRAY) { | |
a1f49e72 | 2483 | while (++MARK <= SP) { |
3ed94dc0 | 2484 | *++newsp = popsub2 && SvTEMP(*MARK) && SvREFCNT(*MARK) == 1 |
6f48390a | 2485 | && !SvGMAGICAL(*MARK) |
f86702cc | 2486 | ? *MARK : sv_mortalcopy(*MARK); |
a1f49e72 CS |
2487 | TAINT_NOT; /* Each item is independent */ |
2488 | } | |
3bdf583b FC |
2489 | } |
2490 | PL_stack_sp = newsp; | |
a0d0e21e | 2491 | } |
a0d0e21e | 2492 | |
5dd42e15 | 2493 | LEAVE; |
f86702cc | 2494 | /* Stack values are safe: */ |
2495 | if (popsub2) { | |
5dd42e15 | 2496 | cxstack_ix--; |
b0d9ce38 | 2497 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2498 | } |
b0d9ce38 | 2499 | else |
c445ea15 | 2500 | sv = NULL; |
3280af22 | 2501 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2502 | |
b0d9ce38 | 2503 | LEAVESUB(sv); |
8433848b | 2504 | if (clear_errsv) { |
ab69dbc2 | 2505 | CLEAR_ERRSV(); |
8433848b | 2506 | } |
f39bc417 | 2507 | return retop; |
a0d0e21e LW |
2508 | } |
2509 | ||
4f443c3d FC |
2510 | /* This duplicates parts of pp_leavesub, so that it can share code with |
2511 | * pp_return */ | |
2512 | PP(pp_leavesublv) | |
2513 | { | |
2514 | dVAR; dSP; | |
4f443c3d FC |
2515 | SV **newsp; |
2516 | PMOP *newpm; | |
2517 | I32 gimme; | |
eb578fdb | 2518 | PERL_CONTEXT *cx; |
4f443c3d FC |
2519 | SV *sv; |
2520 | ||
2521 | if (CxMULTICALL(&cxstack[cxstack_ix])) | |
2522 | return 0; | |
2523 | ||
2524 | POPBLOCK(cx,newpm); | |
2525 | cxstack_ix++; /* temporarily protect top context */ | |
4f443c3d FC |
2526 | |
2527 | TAINT_NOT; | |
2528 | ||
0d235c77 | 2529 | S_return_lvalues(aTHX_ newsp, SP, newsp, gimme, cx, newpm); |
4f443c3d FC |
2530 | |
2531 | LEAVE; | |
2532 | cxstack_ix--; | |
2533 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ | |
2534 | PL_curpm = newpm; /* ... and pop $1 et al */ | |
2535 | ||
2536 | LEAVESUB(sv); | |
2537 | return cx->blk_sub.retop; | |
2538 | } | |
2539 | ||
1f039d60 FC |
2540 | static I32 |
2541 | S_unwind_loop(pTHX_ const char * const opname) | |
a0d0e21e | 2542 | { |
1f039d60 | 2543 | dVAR; |
a0d0e21e | 2544 | I32 cxix; |
1f039d60 FC |
2545 | if (PL_op->op_flags & OPf_SPECIAL) { |
2546 | cxix = dopoptoloop(cxstack_ix); | |
2547 | if (cxix < 0) | |
2548 | /* diag_listed_as: Can't "last" outside a loop block */ | |
2549 | Perl_croak(aTHX_ "Can't \"%s\" outside a loop block", opname); | |
2550 | } | |
2551 | else { | |
2552 | dSP; | |
2553 | STRLEN label_len; | |
2554 | const char * const label = | |
2555 | PL_op->op_flags & OPf_STACKED | |
2556 | ? SvPV(TOPs,label_len) | |
2557 | : (label_len = strlen(cPVOP->op_pv), cPVOP->op_pv); | |
2558 | const U32 label_flags = | |
2559 | PL_op->op_flags & OPf_STACKED | |
2560 | ? SvUTF8(POPs) | |
2561 | : (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0; | |
2562 | PUTBACK; | |
2563 | cxix = dopoptolabel(label, label_len, label_flags); | |
2564 | if (cxix < 0) | |
2565 | /* diag_listed_as: Label not found for "last %s" */ | |
2566 | Perl_croak(aTHX_ "Label not found for \"%s %"SVf"\"", | |
2567 | opname, | |
2568 | SVfARG(PL_op->op_flags & OPf_STACKED | |
2569 | && !SvGMAGICAL(TOPp1s) | |
2570 | ? TOPp1s | |
2571 | : newSVpvn_flags(label, | |
2572 | label_len, | |
2573 | label_flags | SVs_TEMP))); | |
2574 | } | |
2575 | if (cxix < cxstack_ix) | |
2576 | dounwind(cxix); | |
2577 | return cxix; | |
2578 | } | |
2579 | ||
2580 | PP(pp_last) | |
2581 | { | |
2582 | dVAR; | |
eb578fdb | 2583 | PERL_CONTEXT *cx; |
f86702cc | 2584 | I32 pop2 = 0; |
a0d0e21e | 2585 | I32 gimme; |
8772537c | 2586 | I32 optype; |
b263a1ad | 2587 | OP *nextop = NULL; |
a0d0e21e LW |
2588 | SV **newsp; |
2589 | PMOP *newpm; | |
a8bba7fa | 2590 | SV **mark; |
c445ea15 | 2591 | SV *sv = NULL; |
9d4ba2ae | 2592 | |
1f039d60 | 2593 | S_unwind_loop(aTHX_ "last"); |
a0d0e21e LW |
2594 | |
2595 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2596 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2597 | mark = newsp; |
6b35e009 | 2598 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2599 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2600 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2601 | case CXt_LOOP_FOR: |
2602 | case CXt_LOOP_PLAIN: | |
2603 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2604 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2605 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2606 | break; |
f86702cc | 2607 | case CXt_SUB: |
f86702cc | 2608 | pop2 = CXt_SUB; |
f39bc417 | 2609 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2610 | break; |
f86702cc | 2611 | case CXt_EVAL: |
2612 | POPEVAL(cx); | |
f39bc417 | 2613 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2614 | break; |
7766f137 GS |
2615 | case CXt_FORMAT: |
2616 | POPFORMAT(cx); | |
f39bc417 | 2617 | nextop = cx->blk_sub.retop; |
7766f137 | 2618 | break; |
a0d0e21e | 2619 | default: |
5637ef5b | 2620 | DIE(aTHX_ "panic: last, type=%u", (unsigned) CxTYPE(cx)); |
a0d0e21e LW |
2621 | } |
2622 | ||
a1f49e72 | 2623 | TAINT_NOT; |
1f039d60 | 2624 | PL_stack_sp = adjust_stack_on_leave(newsp, PL_stack_sp, MARK, gimme, |
b9d76716 | 2625 | pop2 == CXt_SUB ? SVs_TEMP : 0); |
f86702cc | 2626 | |
5dd42e15 DM |
2627 | LEAVE; |
2628 | cxstack_ix--; | |
f86702cc | 2629 | /* Stack values are safe: */ |
2630 | switch (pop2) { | |
c6fdafd0 | 2631 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2632 | case CXt_LOOP_PLAIN: |
d01136d6 | 2633 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2634 | case CXt_LOOP_FOR: |
a8bba7fa | 2635 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2636 | LEAVE; |
f86702cc | 2637 | break; |
2638 | case CXt_SUB: | |
b0d9ce38 | 2639 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2640 | break; |
a0d0e21e | 2641 | } |
3280af22 | 2642 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2643 | |
b0d9ce38 | 2644 | LEAVESUB(sv); |
9d4ba2ae AL |
2645 | PERL_UNUSED_VAR(optype); |
2646 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2647 | return nextop; |
a0d0e21e LW |
2648 | } |
2649 | ||
2650 | PP(pp_next) | |
2651 | { | |
27da23d5 | 2652 | dVAR; |
eb578fdb | 2653 | PERL_CONTEXT *cx; |
1f039d60 | 2654 | const I32 inner = PL_scopestack_ix; |
a0d0e21e | 2655 | |
1f039d60 | 2656 | S_unwind_loop(aTHX_ "next"); |
a0d0e21e | 2657 | |
85538317 GS |
2658 | /* clear off anything above the scope we're re-entering, but |
2659 | * save the rest until after a possible continue block */ | |
1ba6ee2b | 2660 | TOPBLOCK(cx); |
85538317 GS |
2661 | if (PL_scopestack_ix < inner) |
2662 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2663 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2664 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2665 | } |
2666 | ||
2667 | PP(pp_redo) | |
2668 | { | |
27da23d5 | 2669 | dVAR; |
1f039d60 | 2670 | const I32 cxix = S_unwind_loop(aTHX_ "redo"); |
eb578fdb | 2671 | PERL_CONTEXT *cx; |
a0d0e21e | 2672 | I32 oldsave; |
1f039d60 | 2673 | OP* redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a0d0e21e | 2674 | |
a034e688 DM |
2675 | if (redo_op->op_type == OP_ENTER) { |
2676 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2677 | cxstack_ix++; | |
2678 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2679 | redo_op = redo_op->op_next; | |
2680 | } | |
2681 | ||
a0d0e21e | 2682 | TOPBLOCK(cx); |
3280af22 | 2683 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2684 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2685 | FREETMPS; |
3a1b2b9e | 2686 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2687 | return redo_op; |
a0d0e21e LW |
2688 | } |
2689 | ||
0824fdcb | 2690 | STATIC OP * |
5db1eb8d | 2691 | S_dofindlabel(pTHX_ OP *o, const char *label, STRLEN len, U32 flags, OP **opstack, OP **oplimit) |
a0d0e21e | 2692 | { |
97aff369 | 2693 | dVAR; |
a0d0e21e | 2694 | OP **ops = opstack; |
a1894d81 | 2695 | static const char* const too_deep = "Target of goto is too deeply nested"; |
a0d0e21e | 2696 | |
7918f24d NC |
2697 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2698 | ||
fc36a67e | 2699 | if (ops >= oplimit) |
cea2e8a9 | 2700 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2701 | if (o->op_type == OP_LEAVE || |
2702 | o->op_type == OP_SCOPE || | |
2703 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2704 | o->op_type == OP_LEAVESUB || |
11343788 | 2705 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2706 | { |
5dc0d613 | 2707 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2708 | if (ops >= oplimit) |
cea2e8a9 | 2709 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2710 | } |
c4aa4e48 | 2711 | *ops = 0; |
11343788 | 2712 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2713 | OP *kid; |
a0d0e21e | 2714 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2715 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac | 2716 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
5db1eb8d BF |
2717 | STRLEN kid_label_len; |
2718 | U32 kid_label_flags; | |
2719 | const char *kid_label = CopLABEL_len_flags(kCOP, | |
2720 | &kid_label_len, &kid_label_flags); | |
2721 | if (kid_label && ( | |
2722 | ( (kid_label_flags & SVf_UTF8) != (flags & SVf_UTF8) ) ? | |
2723 | (flags & SVf_UTF8) | |
2724 | ? (bytes_cmp_utf8( | |
2725 | (const U8*)kid_label, kid_label_len, | |
2726 | (const U8*)label, len) == 0) | |
2727 | : (bytes_cmp_utf8( | |
2728 | (const U8*)label, len, | |
2729 | (const U8*)kid_label, kid_label_len) == 0) | |
eade7155 BF |
2730 | : ( len == kid_label_len && ((kid_label == label) |
2731 | || memEQ(kid_label, label, len))))) | |
7e8f1eac AD |
2732 | return kid; |
2733 | } | |
a0d0e21e | 2734 | } |
11343788 | 2735 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2736 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2737 | continue; |
ed8d0fe2 SM |
2738 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2739 | if (ops == opstack) | |
2740 | *ops++ = kid; | |
2741 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2742 | ops[-1]->op_type == OP_DBSTATE) | |
2743 | ops[-1] = kid; | |
2744 | else | |
2745 | *ops++ = kid; | |
2746 | } | |
5db1eb8d | 2747 | if ((o = dofindlabel(kid, label, len, flags, ops, oplimit))) |
11343788 | 2748 | return o; |
a0d0e21e LW |
2749 | } |
2750 | } | |
c4aa4e48 | 2751 | *ops = 0; |
a0d0e21e LW |
2752 | return 0; |
2753 | } | |
2754 | ||
a0d0e21e LW |
2755 | PP(pp_goto) |
2756 | { | |
27da23d5 | 2757 | dVAR; dSP; |
cbbf8932 | 2758 | OP *retop = NULL; |
a0d0e21e | 2759 | I32 ix; |
eb578fdb | 2760 | PERL_CONTEXT *cx; |
fc36a67e | 2761 | #define GOTO_DEPTH 64 |
2762 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2763 | const char *label = NULL; |
5db1eb8d BF |
2764 | STRLEN label_len = 0; |
2765 | U32 label_flags = 0; | |
bfed75c6 | 2766 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
a1894d81 | 2767 | static const char* const must_have_label = "goto must have label"; |
a0d0e21e | 2768 | |
533c011a | 2769 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2770 | SV * const sv = POPs; |
55b37f1c | 2771 | SvGETMAGIC(sv); |
a0d0e21e LW |
2772 | |
2773 | /* This egregious kludge implements goto &subroutine */ | |
2774 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2775 | I32 cxix; | |
eb578fdb | 2776 | PERL_CONTEXT *cx; |
ea726b52 | 2777 | CV *cv = MUTABLE_CV(SvRV(sv)); |
049bd5ff | 2778 | AV *arg = GvAV(PL_defgv); |
a0d0e21e LW |
2779 | I32 oldsave; |
2780 | ||
e8f7dd13 | 2781 | retry: |
4aa0a1f7 | 2782 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2783 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2784 | if (gv) { |
7fc63493 | 2785 | GV *autogv; |
e8f7dd13 GS |
2786 | SV *tmpstr; |
2787 | /* autoloaded stub? */ | |
2788 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2789 | goto retry; | |
c271df94 BF |
2790 | autogv = gv_autoload_pvn(GvSTASH(gv), GvNAME(gv), |
2791 | GvNAMELEN(gv), | |
2792 | GvNAMEUTF8(gv) ? SVf_UTF8 : 0); | |
e8f7dd13 GS |
2793 | if (autogv && (cv = GvCV(autogv))) |
2794 | goto retry; | |
2795 | tmpstr = sv_newmortal(); | |
c445ea15 | 2796 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2797 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2798 | } |
cea2e8a9 | 2799 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2800 | } |
2801 | ||
a0d0e21e | 2802 | /* First do some returnish stuff. */ |
b37c2d43 | 2803 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2804 | FREETMPS; |
a0d0e21e LW |
2805 | cxix = dopoptosub(cxstack_ix); |
2806 | if (cxix < 0) | |
110af908 FC |
2807 | { |
2808 | SvREFCNT_dec(cv); | |
cea2e8a9 | 2809 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
110af908 | 2810 | } |
a0d0e21e LW |
2811 | if (cxix < cxstack_ix) |
2812 | dounwind(cxix); | |
2813 | TOPBLOCK(cx); | |
2d43a17f | 2814 | SPAGAIN; |
564abe23 | 2815 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2816 | if (CxTYPE(cx) == CXt_EVAL) { |
110af908 | 2817 | SvREFCNT_dec(cv); |
c74ace89 | 2818 | if (CxREALEVAL(cx)) |
00455a92 | 2819 | /* diag_listed_as: Can't goto subroutine from an eval-%s */ |
c74ace89 DM |
2820 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); |
2821 | else | |
00455a92 | 2822 | /* diag_listed_as: Can't goto subroutine from an eval-%s */ |
c74ace89 | 2823 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); |
2d43a17f | 2824 | } |
9850bf21 | 2825 | else if (CxMULTICALL(cx)) |
110af908 FC |
2826 | { |
2827 | SvREFCNT_dec(cv); | |
9850bf21 | 2828 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); |
110af908 | 2829 | } |
bafb2adc | 2830 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
a0d0e21e | 2831 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2832 | |
049bd5ff FC |
2833 | /* abandon the original @_ if it got reified or if it is |
2834 | the same as the current @_ */ | |
2835 | if (AvREAL(av) || av == arg) { | |
b1464ded | 2836 | SvREFCNT_dec(av); |
d8b46c1b | 2837 | av = newAV(); |
11ca45c0 | 2838 | AvREIFY_only(av); |
ad64d0ec | 2839 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2840 | } |
049bd5ff | 2841 | else CLEAR_ARGARRAY(av); |
a0d0e21e | 2842 | } |
049bd5ff FC |
2843 | /* We donate this refcount later to the callee’s pad. */ |
2844 | SvREFCNT_inc_simple_void(arg); | |
6b35e009 | 2845 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2846 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2847 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2848 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2849 | LEAVE_SCOPE(oldsave); |
2850 | ||
1d59c038 FC |
2851 | /* A destructor called during LEAVE_SCOPE could have undefined |
2852 | * our precious cv. See bug #99850. */ | |
2853 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
2854 | const GV * const gv = CvGV(cv); | |
049bd5ff | 2855 | SvREFCNT_dec(arg); |
1d59c038 FC |
2856 | if (gv) { |
2857 | SV * const tmpstr = sv_newmortal(); | |
2858 | gv_efullname3(tmpstr, gv, NULL); | |
2859 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", | |
2860 | SVfARG(tmpstr)); | |
2861 | } | |
2862 | DIE(aTHX_ "Goto undefined subroutine"); | |
2863 | } | |
2864 | ||
a0d0e21e LW |
2865 | /* Now do some callish stuff. */ |
2866 | SAVETMPS; | |
5023d17a | 2867 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2868 | if (CvISXSUB(cv)) { |
b37c2d43 | 2869 | OP* const retop = cx->blk_sub.retop; |
9d63fa07 KW |
2870 | SV **newsp PERL_UNUSED_DECL; |
2871 | I32 gimme PERL_UNUSED_DECL; | |
049bd5ff FC |
2872 | const SSize_t items = AvFILLp(arg) + 1; |
2873 | SV** mark; | |
2874 | ||
2875 | /* put GvAV(defgv) back onto stack */ | |
2876 | EXTEND(SP, items+1); /* @_ could have been extended. */ | |
2877 | Copy(AvARRAY(arg), SP + 1, items, SV*); | |
2878 | mark = SP; | |
2879 | SP += items; | |
2880 | if (AvREAL(arg)) { | |
b1464ded DM |
2881 | I32 index; |
2882 | for (index=0; index<items; index++) | |
049bd5ff FC |
2883 | SvREFCNT_inc_void(sv_2mortal(SP[-index])); |
2884 | } | |
2885 | SvREFCNT_dec(arg); | |
2886 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { | |
2887 | /* Restore old @_ */ | |
2888 | arg = GvAV(PL_defgv); | |
2889 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
2890 | SvREFCNT_dec(arg); | |
b1464ded | 2891 | } |
1fa4e549 | 2892 | |
b37c2d43 AL |
2893 | /* XS subs don't have a CxSUB, so pop it */ |
2894 | POPBLOCK(cx, PL_curpm); | |
2895 | /* Push a mark for the start of arglist */ | |
2896 | PUSHMARK(mark); | |
2897 | PUTBACK; | |
2898 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2899 | LEAVE; |
5eff7df7 | 2900 | return retop; |
a0d0e21e LW |
2901 | } |
2902 | else { | |
b70d5558 | 2903 | PADLIST * const padlist = CvPADLIST(cv); |
a0d0e21e | 2904 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2905 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2906 | |
a0d0e21e LW |
2907 | CvDEPTH(cv)++; |
2908 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2909 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2910 | else { |
2b9dff67 | 2911 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2912 | sub_crush_depth(cv); |
26019298 | 2913 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2914 | } |
426a09cd | 2915 | PL_curcop = cx->blk_oldcop; |
fd617465 DM |
2916 | SAVECOMPPAD(); |
2917 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2918 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2919 | { |
dd2155a4 | 2920 | CX_CURPAD_SAVE(cx->blk_sub); |
a0d0e21e | 2921 | |
049bd5ff FC |
2922 | /* cx->blk_sub.argarray has no reference count, so we |
2923 | need something to hang on to our argument array so | |
2924 | that cx->blk_sub.argarray does not end up pointing | |
2925 | to freed memory as the result of undef *_. So put | |
2926 | it in the callee’s pad, donating our refer- | |
2927 | ence count. */ | |
2928 | SvREFCNT_dec(PAD_SVl(0)); | |
2929 | PAD_SVl(0) = (SV *)(cx->blk_sub.argarray = arg); | |
2930 | ||
2931 | /* GvAV(PL_defgv) might have been modified on scope | |
2932 | exit, so restore it. */ | |
2933 | if (arg != GvAV(PL_defgv)) { | |
2934 | AV * const av = GvAV(PL_defgv); | |
2935 | GvAV(PL_defgv) = (AV *)SvREFCNT_inc_simple(arg); | |
2936 | SvREFCNT_dec(av); | |
a0d0e21e LW |
2937 | } |
2938 | } | |
049bd5ff | 2939 | else SvREFCNT_dec(arg); |
491527d0 | 2940 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2941 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2942 | if (PERLDB_GOTO) { |
b96d8cd9 | 2943 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2944 | if (gotocv) { |
2945 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2946 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2947 | PL_stack_sp--; |
2948 | } | |
491527d0 | 2949 | } |
1ce6579f | 2950 | } |
a0d0e21e LW |
2951 | RETURNOP(CvSTART(cv)); |
2952 | } | |
2953 | } | |
1614b0e3 | 2954 | else { |
55b37f1c | 2955 | label = SvPV_nomg_const(sv, label_len); |
5db1eb8d | 2956 | label_flags = SvUTF8(sv); |
1614b0e3 | 2957 | } |
a0d0e21e | 2958 | } |
2fc690dc | 2959 | else if (!(PL_op->op_flags & OPf_SPECIAL)) { |
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 | } | |
2fc690dc | 2964 | if (!(do_dump || label_len)) DIE(aTHX_ 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: | |
a0d0e21e LW |
2997 | gotoprobe = cx->blk_oldcop->op_sibling; |
2998 | break; | |
2999 | case CXt_SUBST: | |
3000 | continue; | |
3001 | case CXt_BLOCK: | |
33d34e4c | 3002 | if (ix) { |
a0d0e21e | 3003 | gotoprobe = cx->blk_oldcop->op_sibling; |
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 | } | |
3013 | /* FALL THROUGH */ | |
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) { |
5db1eb8d | 3025 | retop = dofindlabel(gotoprobe, label, label_len, label_flags, |
2b597662 GS |
3026 | enterops, enterops + GOTO_DEPTH); |
3027 | if (retop) | |
3028 | break; | |
eae48c89 Z |
3029 | if (gotoprobe->op_sibling && |
3030 | gotoprobe->op_sibling->op_type == OP_UNSTACK && | |
3031 | gotoprobe->op_sibling->op_sibling) { | |
3032 | retop = dofindlabel(gotoprobe->op_sibling->op_sibling, | |
5db1eb8d BF |
3033 | label, label_len, label_flags, enterops, |
3034 | enterops + GOTO_DEPTH); | |
eae48c89 Z |
3035 | if (retop) |
3036 | break; | |
3037 | } | |
2b597662 | 3038 | } |
3280af22 | 3039 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
3040 | } |
3041 | if (!retop) | |
5db1eb8d BF |
3042 | DIE(aTHX_ "Can't find label %"SVf, |
3043 | SVfARG(newSVpvn_flags(label, label_len, | |
3044 | SVs_TEMP | label_flags))); | |
a0d0e21e | 3045 | |
3b2447bc RH |
3046 | /* if we're leaving an eval, check before we pop any frames |
3047 | that we're not going to punt, otherwise the error | |
3048 | won't be caught */ | |
3049 | ||
3050 | if (leaving_eval && *enterops && enterops[1]) { | |
3051 | I32 i; | |
3052 | for (i = 1; enterops[i]; i++) | |
3053 | if (enterops[i]->op_type == OP_ENTERITER) | |
3054 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
3055 | } | |
3056 | ||
b500e03b GG |
3057 | if (*enterops && enterops[1]) { |
3058 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
3059 | if (enterops[i]) | |
3060 | deprecate("\"goto\" to jump into a construct"); | |
3061 | } | |
3062 | ||
a0d0e21e LW |
3063 | /* pop unwanted frames */ |
3064 | ||
3065 | if (ix < cxstack_ix) { | |
3066 | I32 oldsave; | |
3067 | ||
3068 | if (ix < 0) | |
3069 | ix = 0; | |
3070 | dounwind(ix); | |
3071 | TOPBLOCK(cx); | |
3280af22 | 3072 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
3073 | LEAVE_SCOPE(oldsave); |
3074 | } | |
3075 | ||
3076 | /* push wanted frames */ | |
3077 | ||
748a9306 | 3078 | if (*enterops && enterops[1]) { |
0bd48802 | 3079 | OP * const oldop = PL_op; |
33d34e4c AE |
3080 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
3081 | for (; enterops[ix]; ix++) { | |
533c011a | 3082 | PL_op = enterops[ix]; |
84902520 TB |
3083 | /* Eventually we may want to stack the needed arguments |
3084 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 3085 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 3086 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 3087 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 3088 | } |
533c011a | 3089 | PL_op = oldop; |
a0d0e21e LW |
3090 | } |
3091 | } | |
3092 | ||
3093 | if (do_dump) { | |
a5f75d66 | 3094 | #ifdef VMS |
6b88bc9c | 3095 | if (!retop) retop = PL_main_start; |
a5f75d66 | 3096 | #endif |
3280af22 NIS |
3097 | PL_restartop = retop; |
3098 | PL_do_undump = TRUE; | |
a0d0e21e LW |
3099 | |
3100 | my_unexec(); | |
3101 | ||
3280af22 NIS |
3102 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
3103 | PL_do_undump = FALSE; | |
a0d0e21e LW |
3104 | } |
3105 | ||
3106 | RETURNOP(retop); | |
3107 | } | |
3108 | ||
3109 | PP(pp_exit) | |
3110 | { | |
97aff369 | 3111 | dVAR; |
39644a26 | 3112 | dSP; |
a0d0e21e LW |
3113 | I32 anum; |
3114 | ||
3115 | if (MAXARG < 1) | |
3116 | anum = 0; | |
9d3c658e FC |
3117 | else if (!TOPs) { |
3118 | anum = 0; (void)POPs; | |
3119 | } | |
ff0cee69 | 3120 | else { |
a0d0e21e | 3121 | anum = SvIVx(POPs); |
d98f61e7 GS |
3122 | #ifdef VMS |
3123 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 3124 | anum = 0; |
96e176bf | 3125 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 3126 | #endif |
3127 | } | |
cc3604b1 | 3128 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
3129 | #ifdef PERL_MAD |
3130 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
3131 | if (anum || !(PL_minus_c && PL_madskills)) | |
3132 | my_exit(anum); | |
3133 | #else | |
a0d0e21e | 3134 | my_exit(anum); |
81d86705 | 3135 | #endif |
3280af22 | 3136 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
3137 | RETURN; |
3138 | } | |
3139 | ||
a0d0e21e LW |
3140 | /* Eval. */ |
3141 | ||
0824fdcb | 3142 | STATIC void |
cea2e8a9 | 3143 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 3144 | { |
504618e9 | 3145 | const char *s = SvPVX_const(sv); |
890ce7af | 3146 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 3147 | I32 line = 1; |
a0d0e21e | 3148 | |
7918f24d NC |
3149 | PERL_ARGS_ASSERT_SAVE_LINES; |
3150 | ||
a0d0e21e | 3151 | while (s && s < send) { |
f54cb97a | 3152 | const char *t; |
b9f83d2f | 3153 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 3154 | |
1d963ff3 | 3155 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
3156 | if (t) |
3157 | t++; | |
3158 | else | |
3159 | t = send; | |
3160 | ||
3161 | sv_setpvn(tmpstr, s, t - s); | |
3162 | av_store(array, line++, tmpstr); | |
3163 | s = t; | |
3164 | } | |
3165 | } | |
3166 | ||
22f16304 RU |
3167 | /* |
3168 | =for apidoc docatch | |
3169 | ||
3170 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
3171 | ||
3172 | 0 is used as continue inside eval, | |
3173 | ||
3174 | 3 is used for a die caught by an inner eval - continue inner loop | |
3175 | ||
3176 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
3177 | establish a local jmpenv to handle exception traps. | |
3178 | ||
3179 | =cut | |
3180 | */ | |
0824fdcb | 3181 | STATIC OP * |
cea2e8a9 | 3182 | S_docatch(pTHX_ OP *o) |
1e422769 | 3183 | { |
97aff369 | 3184 | dVAR; |
6224f72b | 3185 | int ret; |
06b5626a | 3186 | OP * const oldop = PL_op; |
db36c5a1 | 3187 | dJMPENV; |
1e422769 | 3188 | |
1e422769 | 3189 | #ifdef DEBUGGING |
54310121 | 3190 | assert(CATCH_GET == TRUE); |
1e422769 | 3191 | #endif |
312caa8e | 3192 | PL_op = o; |
8bffa5f8 | 3193 | |
14dd3ad8 | 3194 | JMPENV_PUSH(ret); |
6224f72b | 3195 | switch (ret) { |
312caa8e | 3196 | case 0: |
abd70938 DM |
3197 | assert(cxstack_ix >= 0); |
3198 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3199 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 3200 | redo_body: |
85aaa934 | 3201 | CALLRUNOPS(aTHX); |
312caa8e CS |
3202 | break; |
3203 | case 3: | |
8bffa5f8 | 3204 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
3205 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
3206 | PL_restartjmpenv = NULL; | |
312caa8e CS |
3207 | PL_op = PL_restartop; |
3208 | PL_restartop = 0; | |
3209 | goto redo_body; | |
3210 | } | |
3211 | /* FALL THROUGH */ | |
3212 | default: | |
14dd3ad8 | 3213 | JMPENV_POP; |
533c011a | 3214 | PL_op = oldop; |
6224f72b | 3215 | JMPENV_JUMP(ret); |
118e2215 | 3216 | assert(0); /* NOTREACHED */ |
1e422769 | 3217 | } |
14dd3ad8 | 3218 | JMPENV_POP; |
533c011a | 3219 | PL_op = oldop; |
5f66b61c | 3220 | return NULL; |
1e422769 | 3221 | } |
3222 | ||
a3985cdc DM |
3223 | |
3224 | /* | |
3225 | =for apidoc find_runcv | |
3226 | ||
3227 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3228 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3229 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3230 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3231 | than in the scope of the debugger itself). |
a3985cdc DM |
3232 | |
3233 | =cut | |
3234 | */ | |
3235 | ||
3236 | CV* | |
d819b83a | 3237 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3238 | { |
db4cf31d | 3239 | return Perl_find_runcv_where(aTHX_ 0, 0, db_seqp); |
70794f7b FC |
3240 | } |
3241 | ||
3242 | /* If this becomes part of the API, it might need a better name. */ | |
3243 | CV * | |
db4cf31d | 3244 | Perl_find_runcv_where(pTHX_ U8 cond, IV arg, U32 *db_seqp) |
70794f7b | 3245 | { |
97aff369 | 3246 | dVAR; |
a3985cdc | 3247 | PERL_SI *si; |
b4b0692a | 3248 | int level = 0; |
a3985cdc | 3249 | |
d819b83a DM |
3250 | if (db_seqp) |
3251 | *db_seqp = PL_curcop->cop_seq; | |
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 | } | |
d819b83a | 3264 | } |
a3985cdc | 3265 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
70794f7b FC |
3266 | cv = cx->blk_eval.cv; |
3267 | if (cv) { | |
3268 | switch (cond) { | |
db4cf31d FC |
3269 | case FIND_RUNCV_padid_eq: |
3270 | if (!CvPADLIST(cv) | |
a56015b9 | 3271 | || PadlistNAMES(CvPADLIST(cv)) != INT2PTR(PADNAMELIST *, arg)) |
8771da69 | 3272 | continue; |
b4b0692a FC |
3273 | return cv; |
3274 | case FIND_RUNCV_level_eq: | |
db4cf31d | 3275 | if (level++ != arg) continue; |
70794f7b FC |
3276 | /* GERONIMO! */ |
3277 | default: | |
3278 | return cv; | |
3279 | } | |
3280 | } | |
a3985cdc DM |
3281 | } |
3282 | } | |
db4cf31d | 3283 | return cond == FIND_RUNCV_padid_eq ? NULL : PL_main_cv; |
a3985cdc DM |
3284 | } |
3285 | ||
3286 | ||
27e90453 DM |
3287 | /* Run yyparse() in a setjmp wrapper. Returns: |
3288 | * 0: yyparse() successful | |
3289 | * 1: yyparse() failed | |
3290 | * 3: yyparse() died | |
3291 | */ | |
3292 | STATIC int | |
28ac2b49 | 3293 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3294 | { |
3295 | int ret; | |
3296 | dJMPENV; | |
3297 | ||
3298 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3299 | JMPENV_PUSH(ret); | |
3300 | switch (ret) { | |
3301 | case 0: | |
28ac2b49 | 3302 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3303 | break; |
3304 | case 3: | |
3305 | break; | |
3306 | default: | |
3307 | JMPENV_POP; | |
3308 | JMPENV_JUMP(ret); | |
118e2215 | 3309 | assert(0); /* NOTREACHED */ |
27e90453 DM |
3310 | } |
3311 | JMPENV_POP; | |
3312 | return ret; | |
3313 | } | |
3314 | ||
3315 | ||
104a8185 DM |
3316 | /* Compile a require/do or an eval ''. |
3317 | * | |
a3985cdc | 3318 | * outside is the lexically enclosing CV (if any) that invoked us. |
104a8185 DM |
3319 | * seq is the current COP scope value. |
3320 | * hh is the saved hints hash, if any. | |
3321 | * | |
410be5db | 3322 | * Returns a bool indicating whether the compile was successful; if so, |
104a8185 DM |
3323 | * PL_eval_start contains the first op of the compiled code; otherwise, |
3324 | * pushes undef. | |
3325 | * | |
3326 | * This function is called from two places: pp_require and pp_entereval. | |
3327 | * These can be distinguished by whether PL_op is entereval. | |
7d116edc FC |
3328 | */ |
3329 | ||
410be5db | 3330 | STATIC bool |
104a8185 | 3331 | S_doeval(pTHX_ int gimme, CV* outside, U32 seq, HV *hh) |
a0d0e21e | 3332 | { |
27da23d5 | 3333 | dVAR; dSP; |
46c461b5 | 3334 | OP * const saveop = PL_op; |
104a8185 | 3335 | bool clear_hints = saveop->op_type != OP_ENTEREVAL; |
f45b078d | 3336 | COP * const oldcurcop = PL_curcop; |
26c9400e | 3337 | bool in_require = (saveop->op_type == OP_REQUIRE); |
27e90453 | 3338 | int yystatus; |
676a678a | 3339 | CV *evalcv; |
a0d0e21e | 3340 | |
27e90453 | 3341 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3342 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3343 | : EVAL_INEVAL); | |
a0d0e21e | 3344 | |
1ce6579f | 3345 | PUSHMARK(SP); |
3346 | ||
676a678a Z |
3347 | evalcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
3348 | CvEVAL_on(evalcv); | |
2090ab20 | 3349 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
676a678a | 3350 | cxstack[cxstack_ix].blk_eval.cv = evalcv; |
86a64801 | 3351 | cxstack[cxstack_ix].blk_gimme = gimme; |
2090ab20 | 3352 | |
676a678a Z |
3353 | CvOUTSIDE_SEQ(evalcv) = seq; |
3354 | CvOUTSIDE(evalcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); | |
a3985cdc | 3355 | |
dd2155a4 | 3356 | /* set up a scratch pad */ |
a0d0e21e | 3357 | |
676a678a | 3358 | CvPADLIST(evalcv) = pad_new(padnew_SAVE); |
cecbe010 | 3359 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3360 | |
07055b4c | 3361 | |
81d86705 | 3362 | if (!PL_madskills) |
676a678a | 3363 | SAVEMORTALIZESV(evalcv); /* must remain until end of current statement */ |
748a9306 | 3364 | |
a0d0e21e LW |
3365 | /* make sure we compile in the right package */ |
3366 | ||
ed094faf | 3367 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
03d9f026 FC |
3368 | SAVEGENERICSV(PL_curstash); |
3369 | PL_curstash = (HV *)SvREFCNT_inc_simple(CopSTASH(PL_curcop)); | |
a0d0e21e | 3370 | } |
3c10abe3 | 3371 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3372 | SAVESPTR(PL_beginav); |
3373 | PL_beginav = newAV(); | |
3374 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3375 | SAVESPTR(PL_unitcheckav); |
3376 | PL_unitcheckav = newAV(); | |
3377 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3378 | |
81d86705 | 3379 | #ifdef PERL_MAD |
9da243ce | 3380 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3381 | PL_madskills = 0; |
3382 | #endif | |
3383 | ||
104a8185 | 3384 | ENTER_with_name("evalcomp"); |
676a678a Z |
3385 | SAVESPTR(PL_compcv); |
3386 | PL_compcv = evalcv; | |
3387 | ||
a0d0e21e LW |
3388 | /* try to compile it */ |
3389 | ||
5f66b61c | 3390 | PL_eval_root = NULL; |
3280af22 | 3391 | PL_curcop = &PL_compiling; |
26c9400e | 3392 | if ((saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3393 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3394 | else |
3395 | CLEAR_ERRSV(); | |
27e90453 | 3396 | |
377b5421 DM |
3397 | SAVEHINTS(); |
3398 | if (clear_hints) { | |
3399 | PL_hints = 0; | |
3400 | hv_clear(GvHV(PL_hintgv)); | |
3401 | } | |
3402 | else { | |
3403 | PL_hints = saveop->op_private & OPpEVAL_COPHH | |
3404 | ? oldcurcop->cop_hints : saveop->op_targ; | |
3405 | if (hh) { | |
3406 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3407 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
3408 | GvHV(PL_hintgv) = hh; | |
3409 | } | |
3410 | } | |
3411 | SAVECOMPILEWARNINGS(); | |
3412 | if (clear_hints) { | |
3413 | if (PL_dowarn & G_WARN_ALL_ON) | |
3414 | PL_compiling.cop_warnings = pWARN_ALL ; | |
3415 | else if (PL_dowarn & G_WARN_ALL_OFF) | |
3416 | PL_compiling.cop_warnings = pWARN_NONE ; | |
3417 | else | |
3418 | PL_compiling.cop_warnings = pWARN_STD ; | |
3419 | } | |
3420 | else { | |
3421 | PL_compiling.cop_warnings = | |
3422 | DUP_WARNINGS(oldcurcop->cop_warnings); | |
3423 | cophh_free(CopHINTHASH_get(&PL_compiling)); | |
3424 | if (Perl_cop_fetch_label(aTHX_ oldcurcop, NULL, NULL)) { | |
3425 | /* The label, if present, is the first entry on the chain. So rather | |
3426 | than writing a blank label in front of it (which involves an | |
3427 | allocation), just use the next entry in the chain. */ | |
3428 | PL_compiling.cop_hints_hash | |
3429 | = cophh_copy(oldcurcop->cop_hints_hash->refcounted_he_next); | |
3430 | /* Check the assumption that this removed the label. */ | |
3431 | assert(Perl_cop_fetch_label(aTHX_ &PL_compiling, NULL, NULL) == NULL); | |
f45b078d | 3432 | } |
377b5421 DM |
3433 | else |
3434 | PL_compiling.cop_hints_hash = cophh_copy(oldcurcop->cop_hints_hash); | |
3435 | } | |
f45b078d | 3436 | |
a88d97bf | 3437 | CALL_BLOCK_HOOKS(bhk_eval, saveop); |
52db365a | 3438 | |
27e90453 DM |
3439 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3440 | * so honour CATCH_GET and trap it here if necessary */ | |
3441 | ||
28ac2b49 | 3442 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3443 | |
3444 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3445 | SV **newsp; /* Used by POPBLOCK. */ |
d164302a | 3446 | PERL_CONTEXT *cx; |
27e90453 | 3447 | I32 optype; /* Used by POPEVAL. */ |
d164302a | 3448 | SV *namesv; |
eed484f9 | 3449 | SV *errsv = NULL; |
bfed75c6 | 3450 | |
d164302a GG |
3451 | cx = NULL; |
3452 | namesv = NULL; | |
27e90453 DM |
3453 | PERL_UNUSED_VAR(newsp); |
3454 | PERL_UNUSED_VAR(optype); | |
3455 | ||
c86ffc32 DM |
3456 | /* note that if yystatus == 3, then the EVAL CX block has already |
3457 | * been popped, and various vars restored */ | |
533c011a | 3458 | PL_op = saveop; |
27e90453 | 3459 | if (yystatus != 3) { |
c86ffc32 DM |
3460 | if (PL_eval_root) { |
3461 | op_free(PL_eval_root); | |
3462 | PL_eval_root = NULL; | |
3463 | } | |
27e90453 | 3464 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
377b5421 DM |
3465 | POPBLOCK(cx,PL_curpm); |
3466 | POPEVAL(cx); | |
3467 | namesv = cx->blk_eval.old_namesv; | |
bbde7ba3 | 3468 | /* POPBLOCK renders LEAVE_with_name("evalcomp") unnecessary. */ |
27e90453 | 3469 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ |
cd6472fc | 3470 | } |
9d4ba2ae | 3471 | |
eed484f9 | 3472 | errsv = ERRSV; |
27e90453 | 3473 | if (in_require) { |
b6494f15 VP |
3474 | if (!cx) { |
3475 | /* If cx is still NULL, it means that we didn't go in the | |
3476 | * POPEVAL branch. */ | |
3477 | cx = &cxstack[cxstack_ix]; | |
3478 | assert(CxTYPE(cx) == CXt_EVAL); | |
3479 | namesv = cx->blk_eval.old_namesv; | |
3480 | } | |
3481 | (void)hv_store(GvHVn(PL_incgv), | |
ecad31f0 | 3482 | SvPVX_const(namesv), |
c60dbbc3 | 3483 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 | 3484 | &PL_sv_undef, 0); |
ecad31f0 | 3485 | Perl_croak(aTHX_ "%"SVf"Compilation failed in require", |
eed484f9 DD |
3486 | SVfARG(errsv |
3487 | ? errsv | |
ecad31f0 | 3488 | : newSVpvs_flags("Unknown error\n", SVs_TEMP))); |
5a844595 | 3489 | } |
9d7f88dd | 3490 | else { |
eed484f9 DD |
3491 | if (!*(SvPV_nolen_const(errsv))) { |
3492 | sv_setpvs(errsv, "Compilation error"); | |
9d7f88dd SR |
3493 | } |
3494 | } | |
2bf54cc6 | 3495 | if (gimme != G_ARRAY) PUSHs(&PL_sv_undef); |
410be5db DM |
3496 | PUTBACK; |
3497 | return FALSE; | |
a0d0e21e | 3498 | } |
104a8185 DM |
3499 | else |
3500 | LEAVE_with_name("evalcomp"); | |
3501 | ||
57843af0 | 3502 | CopLINE_set(&PL_compiling, 0); |
104a8185 | 3503 | SAVEFREEOP(PL_eval_root); |
8be227ab | 3504 | cv_forget_slab(evalcv); |
0c58d367 | 3505 | |
a0d0e21e LW |
3506 | DEBUG_x(dump_eval()); |
3507 | ||
55497cff | 3508 | /* Register with debugger: */ |
26c9400e | 3509 | if (PERLDB_INTER && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3510 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3511 | if (cv) { |
3512 | dSP; | |
924508f0 | 3513 | PUSHMARK(SP); |
ad64d0ec | 3514 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3515 | PUTBACK; |
ad64d0ec | 3516 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3517 | } |
3518 | } | |
3519 | ||
8ed49485 FC |
3520 | if (PL_unitcheckav) { |
3521 | OP *es = PL_eval_start; | |
3c10abe3 | 3522 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3523 | PL_eval_start = es; |
3524 | } | |
3c10abe3 | 3525 | |
a0d0e21e LW |
3526 | /* compiled okay, so do it */ |
3527 | ||
676a678a | 3528 | CvDEPTH(evalcv) = 1; |
3280af22 | 3529 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
533c011a | 3530 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3531 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3532 | |
410be5db DM |
3533 | PUTBACK; |
3534 | return TRUE; | |
a0d0e21e LW |
3535 | } |
3536 | ||
a6c40364 | 3537 | STATIC PerlIO * |
282b29ee | 3538 | S_check_type_and_open(pTHX_ SV *name) |
ce8abf5f SP |
3539 | { |
3540 | Stat_t st; | |
282b29ee NC |
3541 | const char *p = SvPV_nolen_const(name); |
3542 | const int st_rc = PerlLIO_stat(p, &st); | |
df528165 | 3543 | |
7918f24d NC |
3544 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3545 | ||
6b845e56 | 3546 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3547 | return NULL; |
ce8abf5f SP |
3548 | } |
3549 | ||
ccb84406 | 3550 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
639dfab0 | 3551 | return PerlIO_openn(aTHX_ ":", PERL_SCRIPT_MODE, -1, 0, 0, NULL, 1, &name); |
ccb84406 | 3552 | #else |
282b29ee | 3553 | return PerlIO_open(p, PERL_SCRIPT_MODE); |
ccb84406 | 3554 | #endif |
ce8abf5f SP |
3555 | } |
3556 | ||
75c20bac | 3557 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3558 | STATIC PerlIO * |
282b29ee | 3559 | S_doopen_pm(pTHX_ SV *name) |
b295d113 | 3560 | { |
282b29ee NC |
3561 | STRLEN namelen; |
3562 | const char *p = SvPV_const(name, namelen); | |
b295d113 | 3563 | |
7918f24d NC |
3564 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3565 | ||
282b29ee | 3566 | if (namelen > 3 && memEQs(p + namelen - 3, 3, ".pm")) { |
eb70bb4a | 3567 | SV *const pmcsv = sv_newmortal(); |
a6c40364 | 3568 | Stat_t pmcstat; |
50b8ed39 | 3569 | |
eb70bb4a | 3570 | SvSetSV_nosteal(pmcsv,name); |
282b29ee | 3571 | sv_catpvn(pmcsv, "c", 1); |
50b8ed39 | 3572 | |
282b29ee NC |
3573 | if (PerlLIO_stat(SvPV_nolen_const(pmcsv), &pmcstat) >= 0) |
3574 | return check_type_and_open(pmcsv); | |
a6c40364 | 3575 | } |
282b29ee | 3576 | return check_type_and_open(name); |
75c20bac | 3577 | } |
7925835c | 3578 | #else |
282b29ee | 3579 | # define doopen_pm(name) check_type_and_open(name) |
7925835c | 3580 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3581 | |
a0d0e21e LW |
3582 | PP(pp_require) |
3583 | { | |
27da23d5 | 3584 | dVAR; dSP; |
eb578fdb | 3585 | PERL_CONTEXT *cx; |
a0d0e21e | 3586 | SV *sv; |
5c144d81 | 3587 | const char *name; |
6132ea6c | 3588 | STRLEN len; |
4492be7a JM |
3589 | char * unixname; |
3590 | STRLEN unixlen; | |
62f5ad7a | 3591 | #ifdef VMS |
4492be7a | 3592 | int vms_unixname = 0; |
155f4c25 CB |
3593 | char *unixnamebuf; |
3594 | char *unixdir; | |
3595 | char *unixdirbuf; | |
62f5ad7a | 3596 | #endif |
c445ea15 AL |
3597 | const char *tryname = NULL; |
3598 | SV *namesv = NULL; | |
f54cb97a | 3599 | const I32 gimme = GIMME_V; |
bbed91b5 | 3600 | int filter_has_file = 0; |
c445ea15 | 3601 | PerlIO *tryrsfp = NULL; |
34113e50 | 3602 | SV *filter_cache = NULL; |
c445ea15 AL |
3603 | SV *filter_state = NULL; |
3604 | SV *filter_sub = NULL; | |
3605 | SV *hook_sv = NULL; | |
6ec9efec JH |
3606 | SV *encoding; |
3607 | OP *op; | |
83b195e4 | 3608 | int saved_errno; |
a0d0e21e LW |
3609 | |
3610 | sv = POPs; | |
d7aa5382 | 3611 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d086148c | 3612 | sv = sv_2mortal(new_version(sv)); |
88010bae | 3613 | if (!Perl_sv_derived_from_pvn(aTHX_ PL_patchlevel, STR_WITH_LEN("version"), 0)) |
ac0e6a2f | 3614 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3615 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3616 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3617 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
e753e3b1 FC |
3618 | SVfARG(sv_2mortal(vnormal(sv))), |
3619 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3620 | ); | |
468aa647 RGS |
3621 | } |
3622 | else { | |
d1029faa JP |
3623 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3624 | I32 first = 0; | |
3625 | AV *lav; | |
3626 | SV * const req = SvRV(sv); | |
85fbaab2 | 3627 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3628 | |
3629 | /* get the left hand term */ | |
502c6561 | 3630 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3631 | |
3632 | first = SvIV(*av_fetch(lav,0,0)); | |
3633 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3634 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3635 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3636 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3637 | ) { | |
3638 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
9d056fb0 FC |
3639 | "%"SVf", stopped", |
3640 | SVfARG(sv_2mortal(vnormal(req))), | |
3641 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3642 | ); | |
d1029faa JP |
3643 | } |
3644 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3645 | SV *hintsv; |
d1029faa JP |
3646 | I32 second = 0; |
3647 | ||
3648 | if (av_len(lav)>=1) | |
3649 | second = SvIV(*av_fetch(lav,1,0)); | |
3650 | ||
3651 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3652 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3653 | (int)first, (int)second); | |
d1029faa JP |
3654 | upg_version(hintsv, TRUE); |
3655 | ||
3656 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3657 | "--this is only %"SVf", stopped", | |
1be7d6f3 FC |
3658 | SVfARG(sv_2mortal(vnormal(req))), |
3659 | SVfARG(sv_2mortal(vnormal(sv_2mortal(hintsv)))), | |
3660 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3661 | ); | |
d1029faa JP |
3662 | } |
3663 | } | |
468aa647 | 3664 | } |
d7aa5382 | 3665 | |
7dfde25d | 3666 | RETPUSHYES; |
a0d0e21e | 3667 | } |
5c144d81 | 3668 | name = SvPV_const(sv, len); |
6132ea6c | 3669 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3670 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3671 | TAINT_PROPER("require"); |
4492be7a JM |
3672 | |
3673 | ||
3674 | #ifdef VMS | |
3675 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3676 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3677 | * can result in a module being pulled in more than once. | |
3678 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3679 | * name can be translated to UNIX. | |
3680 | */ | |
155f4c25 CB |
3681 | |
3682 | if ((unixnamebuf = SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1)))) | |
3683 | && (unixname = tounixspec(name, unixnamebuf)) != NULL) { | |
4492be7a JM |
3684 | unixlen = strlen(unixname); |
3685 | vms_unixname = 1; | |
3686 | } | |
3687 | else | |
3688 | #endif | |
3689 | { | |
3690 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3691 | * through. | |
3692 | */ | |
3693 | unixname = (char *) name; | |
3694 | unixlen = len; | |
3695 | } | |
44f8325f | 3696 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3697 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3698 | unixname, unixlen, 0); | |
44f8325f AL |
3699 | if ( svp ) { |
3700 | if (*svp != &PL_sv_undef) | |
3701 | RETPUSHYES; | |
3702 | else | |
087b5369 RD |
3703 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3704 | "Compilation failed in require", unixname); | |
44f8325f | 3705 | } |
4d8b06f1 | 3706 | } |
a0d0e21e | 3707 | |
32aeab29 SM |
3708 | LOADING_FILE_PROBE(unixname); |
3709 | ||
a0d0e21e LW |
3710 | /* prepare to compile file */ |
3711 | ||
be4b629d | 3712 | if (path_is_absolute(name)) { |
282b29ee | 3713 | /* At this point, name is SvPVX(sv) */ |
46fc3d4c | 3714 | tryname = name; |
282b29ee | 3715 | tryrsfp = doopen_pm(sv); |
bf4acbe4 | 3716 | } |
2433d39e | 3717 | if (!tryrsfp && !(errno == EACCES && path_is_absolute(name))) { |
44f8325f | 3718 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3719 | I32 i; |
748a9306 | 3720 | #ifdef VMS |
4492be7a | 3721 | if (vms_unixname) |
46fc3d4c | 3722 | #endif |
3723 | { | |
d0328fd7 | 3724 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3725 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3726 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3727 | |
ad64d0ec | 3728 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3729 | mg_get(dirsv); |
bbed91b5 KF |
3730 | if (SvROK(dirsv)) { |
3731 | int count; | |
a3b58a99 | 3732 | SV **svp; |
bbed91b5 KF |
3733 | SV *loader = dirsv; |
3734 | ||
e14e2dc8 NC |
3735 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3736 | && !sv_isobject(loader)) | |
3737 | { | |
502c6561 | 3738 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3739 | } |
3740 | ||
b900a521 | 3741 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3742 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3743 | tryname = SvPVX_const(namesv); |
c445ea15 | 3744 | tryrsfp = NULL; |
bbed91b5 | 3745 | |
d343c3ef | 3746 | ENTER_with_name("call_INC"); |
bbed91b5 KF |
3747 | SAVETMPS; |
3748 | EXTEND(SP, 2); | |
3749 | ||
3750 | PUSHMARK(SP); | |
3751 | PUSHs(dirsv); | |
3752 | PUSHs(sv); | |
3753 | PUTBACK; | |
e982885c NC |
3754 | if (sv_isobject(loader)) |
3755 | count = call_method("INC", G_ARRAY); | |
3756 | else | |
3757 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3758 | SPAGAIN; |
3759 | ||
3760 | if (count > 0) { | |
3761 | int i = 0; | |
3762 | SV *arg; | |
3763 | ||
3764 | SP -= count - 1; | |
3765 | arg = SP[i++]; | |
3766 | ||
34113e50 NC |
3767 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3768 | && !isGV_with_GP(SvRV(arg))) { | |
3769 | filter_cache = SvRV(arg); | |
74c765eb | 3770 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3771 | |
3772 | if (i < count) { | |
3773 | arg = SP[i++]; | |
3774 | } | |
3775 | } | |
3776 | ||
6e592b3a | 3777 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3778 | arg = SvRV(arg); |
3779 | } | |
3780 | ||
6e592b3a | 3781 | if (isGV_with_GP(arg)) { |
159b6efe | 3782 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3783 | |
3784 | ++filter_has_file; | |
3785 | ||
3786 | if (io) { | |
3787 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3788 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3789 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3790 | } |
0f7de14d NC |
3791 | IoIFP(io) = NULL; |
3792 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3793 | } |
3794 | ||
3795 | if (i < count) { | |
3796 | arg = SP[i++]; | |
3797 | } | |
3798 | } | |
3799 | ||
3800 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3801 | filter_sub = arg; | |
74c765eb | 3802 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3803 | |
3804 | if (i < count) { | |
3805 | filter_state = SP[i]; | |
b37c2d43 | 3806 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3807 | } |
34113e50 | 3808 | } |
bbed91b5 | 3809 | |
34113e50 NC |
3810 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3811 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3812 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3813 | } |
1d06aecd | 3814 | SP--; |
bbed91b5 KF |
3815 | } |
3816 | ||
3817 | PUTBACK; | |
3818 | FREETMPS; | |
d343c3ef | 3819 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3820 | |
c5f55552 NC |
3821 | /* Adjust file name if the hook has set an %INC entry. |
3822 | This needs to happen after the FREETMPS above. */ | |
3823 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3824 | if (svp) | |
3825 | tryname = SvPV_nolen_const(*svp); | |
3826 | ||
bbed91b5 | 3827 | if (tryrsfp) { |
89ccab8c | 3828 | hook_sv = dirsv; |
bbed91b5 KF |
3829 | break; |
3830 | } | |
3831 | ||
3832 | filter_has_file = 0; | |
34113e50 NC |
3833 | if (filter_cache) { |
3834 | SvREFCNT_dec(filter_cache); | |
3835 | filter_cache = NULL; | |
3836 | } | |
bbed91b5 KF |
3837 | if (filter_state) { |
3838 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3839 | filter_state = NULL; |
bbed91b5 KF |
3840 | } |
3841 | if (filter_sub) { | |
3842 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3843 | filter_sub = NULL; |
bbed91b5 KF |
3844 | } |
3845 | } | |
3846 | else { | |
be4b629d | 3847 | if (!path_is_absolute(name) |
be4b629d | 3848 | ) { |
b640a14a NC |
3849 | const char *dir; |
3850 | STRLEN dirlen; | |
3851 | ||
3852 | if (SvOK(dirsv)) { | |
3853 | dir = SvPV_const(dirsv, dirlen); | |
3854 | } else { | |
3855 | dir = ""; | |
3856 | dirlen = 0; | |
3857 | } | |
3858 | ||
e37778c2 | 3859 | #ifdef VMS |
155f4c25 CB |
3860 | if (((unixdirbuf = SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1)))) == NULL) |
3861 | || ((unixdir = tounixpath(dir, unixdirbuf)) == NULL)) | |
bbed91b5 KF |
3862 | continue; |
3863 | sv_setpv(namesv, unixdir); | |
3864 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3865 | #else |
3866 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3867 | if (PL_origfilename[0] && |
3868 | PL_origfilename[1] == ':' && | |
3869 | !(dir[0] && dir[1] == ':')) | |
3870 | Perl_sv_setpvf(aTHX_ namesv, | |
3871 | "%c:%s\\%s", | |
3872 | PL_origfilename[0], | |
3873 | dir, name); | |
3874 | else | |
3875 | Perl_sv_setpvf(aTHX_ namesv, | |
3876 | "%s\\%s", | |
3877 | dir, name); | |
e37778c2 | 3878 | # else |
b640a14a NC |
3879 | /* The equivalent of |
3880 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3881 | but without the need to parse the format string, or | |
3882 | call strlen on either pointer, and with the correct | |
3883 | allocation up front. */ | |
3884 | { | |
3885 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3886 | ||
3887 | memcpy(tmp, dir, dirlen); | |
3888 | tmp +=dirlen; | |
3889 | *tmp++ = '/'; | |
3890 | /* name came from an SV, so it will have a '\0' at the | |
3891 | end that we can copy as part of this memcpy(). */ | |
3892 | memcpy(tmp, name, len + 1); | |
3893 | ||
3894 | SvCUR_set(namesv, dirlen + len + 1); | |
282b29ee | 3895 | SvPOK_on(namesv); |
b640a14a | 3896 | } |
27da23d5 | 3897 | # endif |
bf4acbe4 | 3898 | #endif |
bbed91b5 | 3899 | TAINT_PROPER("require"); |
349d4f2f | 3900 | tryname = SvPVX_const(namesv); |
282b29ee | 3901 | tryrsfp = doopen_pm(namesv); |
bbed91b5 | 3902 | if (tryrsfp) { |
e63be746 RGS |
3903 | if (tryname[0] == '.' && tryname[1] == '/') { |
3904 | ++tryname; | |
3905 | while (*++tryname == '/'); | |
3906 | } | |
bbed91b5 KF |
3907 | break; |
3908 | } | |
2433d39e BF |
3909 | else if (errno == EMFILE || errno == EACCES) { |
3910 | /* no point in trying other paths if out of handles; | |
3911 | * on the other hand, if we couldn't open one of the | |
3912 | * files, then going on with the search could lead to | |
3913 | * unexpected results; see perl #113422 | |
3914 | */ | |
3915 | break; | |
3916 | } | |
be4b629d | 3917 | } |
46fc3d4c | 3918 | } |
a0d0e21e LW |
3919 | } |
3920 | } | |
3921 | } | |
83b195e4 | 3922 | saved_errno = errno; /* sv_2mortal can realloc things */ |
b2ef6d44 | 3923 | sv_2mortal(namesv); |
a0d0e21e | 3924 | if (!tryrsfp) { |
533c011a | 3925 | if (PL_op->op_type == OP_REQUIRE) { |
83b195e4 | 3926 | if(saved_errno == EMFILE || saved_errno == EACCES) { |
c9d5e35e | 3927 | /* diag_listed_as: Can't locate %s */ |
83b195e4 | 3928 | DIE(aTHX_ "Can't locate %s: %s", name, Strerror(saved_errno)); |
e31de809 SP |
3929 | } else { |
3930 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3931 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3932 | I32 i; |
1e5f02b3 | 3933 | SV *const msg = newSVpvs_flags("", SVs_TEMP); |
c9d5e35e NC |
3934 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
3935 | for (i = 0; i <= AvFILL(ar); i++) { | |
3936 | sv_catpvs(inc, " "); | |
3937 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
3938 | } | |
f7ee53b5 PJ |
3939 | if (len >= 4 && memEQ(name + len - 3, ".pm", 4)) { |
3940 | const char *c, *e = name + len - 3; | |
3941 | sv_catpv(msg, " (you may need to install the "); | |
3942 | for (c = name; c < e; c++) { | |
3943 | if (*c == '/') { | |
3944 | sv_catpvn(msg, "::", 2); | |
3945 | } | |
3946 | else { | |
3947 | sv_catpvn(msg, c, 1); | |
3948 | } | |
3949 | } | |
3950 | sv_catpv(msg, " module)"); | |
3951 | } | |
3952 | else if (len >= 2 && memEQ(name + len - 2, ".h", 3)) { | |
3953 | sv_catpv(msg, " (change .h to .ph maybe?) (did you run h2ph?)"); | |
3954 | } | |
3955 | else if (len >= 3 && memEQ(name + len - 3, ".ph", 4)) { | |
3956 | sv_catpv(msg, " (did you run h2ph?)"); | |
3957 | } | |
c9d5e35e NC |
3958 | |
3959 | /* diag_listed_as: Can't locate %s */ | |
3960 | DIE(aTHX_ | |
f7ee53b5 PJ |
3961 | "Can't locate %s in @INC%" SVf " (@INC contains:%" SVf ")", |
3962 | name, msg, inc); | |
c9d5e35e | 3963 | } |
2683423c | 3964 | } |
c9d5e35e | 3965 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
3966 | } |
3967 | ||
a3ff80c1 | 3968 | CLEAR_ERRSV(); |
a0d0e21e LW |
3969 | RETPUSHUNDEF; |
3970 | } | |
d8bfb8bd | 3971 | else |
93189314 | 3972 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3973 | |
3974 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3975 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3976 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3977 | if (!hook_sv) { |
4492be7a | 3978 | (void)hv_store(GvHVn(PL_incgv), |
b2ef6d44 | 3979 | unixname, unixlen, newSVpv(tryname,0),0); |
44f8325f | 3980 | } else { |
4492be7a | 3981 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3982 | if (!svp) |
4492be7a JM |
3983 | (void)hv_store(GvHVn(PL_incgv), |
3984 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3985 | } |
a0d0e21e | 3986 | |
d343c3ef | 3987 | ENTER_with_name("eval"); |
a0d0e21e | 3988 | SAVETMPS; |
b2ef6d44 FC |
3989 | SAVECOPFILE_FREE(&PL_compiling); |
3990 | CopFILE_set(&PL_compiling, tryname); | |
8eaa0acf | 3991 | lex_start(NULL, tryrsfp, 0); |
e50aee73 | 3992 | |
34113e50 | 3993 | if (filter_sub || filter_cache) { |
4464f08e NC |
3994 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
3995 | than hanging another SV from it. In turn, filter_add() optionally | |
3996 | takes the SV to use as the filter (or creates a new SV if passed | |
3997 | NULL), so simply pass in whatever value filter_cache has. */ | |
3998 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 3999 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
4000 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
4001 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
4002 | } |
4003 | ||
4004 | /* switch to eval mode */ | |
a0d0e21e | 4005 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 4006 | PUSHEVAL(cx, name); |
f39bc417 | 4007 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 4008 | |
57843af0 GS |
4009 | SAVECOPLINE(&PL_compiling); |
4010 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
4011 | |
4012 | PUTBACK; | |
6ec9efec JH |
4013 | |
4014 | /* Store and reset encoding. */ | |
4015 | encoding = PL_encoding; | |
c445ea15 | 4016 | PL_encoding = NULL; |
6ec9efec | 4017 | |
104a8185 | 4018 | if (doeval(gimme, NULL, PL_curcop->cop_seq, NULL)) |
410be5db DM |
4019 | op = DOCATCH(PL_eval_start); |
4020 | else | |
4021 | op = PL_op->op_next; | |
bfed75c6 | 4022 | |
6ec9efec JH |
4023 | /* Restore encoding. */ |
4024 | PL_encoding = encoding; | |
4025 | ||
32aeab29 SM |
4026 | LOADED_FILE_PROBE(unixname); |
4027 | ||
6ec9efec | 4028 | return op; |
a0d0e21e LW |
4029 | } |
4030 | ||
996c9baa VP |
4031 | /* This is a op added to hold the hints hash for |
4032 | pp_entereval. The hash can be modified by the code | |
4033 | being eval'ed, so we return a copy instead. */ | |
4034 | ||
4035 | PP(pp_hintseval) | |
4036 | { | |
4037 | dVAR; | |
4038 | dSP; | |
defdfed5 | 4039 | mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
4040 | RETURN; |
4041 | } | |
4042 | ||
4043 | ||
a0d0e21e LW |
4044 | PP(pp_entereval) |
4045 | { | |
27da23d5 | 4046 | dVAR; dSP; |
eb578fdb | 4047 | PERL_CONTEXT *cx; |
0d863452 | 4048 | SV *sv; |
890ce7af | 4049 | const I32 gimme = GIMME_V; |
fd06b02c | 4050 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 | 4051 | char tbuf[TYPE_DIGITS(long) + 12]; |
78da7625 | 4052 | bool saved_delete = FALSE; |
83ee9e09 | 4053 | char *tmpbuf = tbuf; |
a0d0e21e | 4054 | STRLEN len; |
a3985cdc | 4055 | CV* runcv; |
0abcdfa4 | 4056 | U32 seq, lex_flags = 0; |
c445ea15 | 4057 | HV *saved_hh = NULL; |
60d63348 | 4058 | const bool bytes = PL_op->op_private & OPpEVAL_BYTES; |
e389bba9 | 4059 | |
0d863452 | 4060 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 4061 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 | 4062 | } |
bc344123 FC |
4063 | else if (PL_hints & HINT_LOCALIZE_HH || ( |
4064 | PL_op->op_private & OPpEVAL_COPHH | |
4065 | && PL_curcop->cop_hints & HINT_LOCALIZE_HH | |
4066 | )) { | |
7d789282 FC |
4067 | saved_hh = cop_hints_2hv(PL_curcop, 0); |
4068 | hv_magic(saved_hh, NULL, PERL_MAGIC_hints); | |
4069 | } | |
0d863452 | 4070 | sv = POPs; |
895b760f DM |
4071 | if (!SvPOK(sv)) { |
4072 | /* make sure we've got a plain PV (no overload etc) before testing | |
4073 | * for taint. Making a copy here is probably overkill, but better | |
4074 | * safe than sorry */ | |
0479a84a NC |
4075 | STRLEN len; |
4076 | const char * const p = SvPV_const(sv, len); | |
4077 | ||
4078 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
0abcdfa4 | 4079 | lex_flags |= LEX_START_COPIED; |
7d789282 | 4080 | |
60d63348 | 4081 | if (bytes && SvUTF8(sv)) |
7d789282 FC |
4082 | SvPVbyte_force(sv, len); |
4083 | } | |
60d63348 | 4084 | else if (bytes && SvUTF8(sv)) { |
e1fa07e3 | 4085 | /* Don't modify someone else's scalar */ |
7d789282 FC |
4086 | STRLEN len; |
4087 | sv = newSVsv(sv); | |
5cefc8c1 | 4088 | (void)sv_2mortal(sv); |
7d789282 | 4089 | SvPVbyte_force(sv,len); |
0abcdfa4 | 4090 | lex_flags |= LEX_START_COPIED; |
895b760f | 4091 | } |
a0d0e21e | 4092 | |
af2d3def | 4093 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 4094 | TAINT_PROPER("eval"); |
a0d0e21e | 4095 | |
d343c3ef | 4096 | ENTER_with_name("eval"); |
0abcdfa4 | 4097 | lex_start(sv, NULL, lex_flags | (PL_op->op_private & OPpEVAL_UNICODE |
60d63348 FC |
4098 | ? LEX_IGNORE_UTF8_HINTS |
4099 | : bytes ? LEX_EVALBYTES : LEX_START_SAME_FILTER | |
0abcdfa4 | 4100 | ) |
60d63348 | 4101 | ); |
748a9306 | 4102 | SAVETMPS; |
ac27b0f5 | 4103 | |
a0d0e21e LW |
4104 | /* switch to eval mode */ |
4105 | ||
83ee9e09 | 4106 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
4107 | SV * const temp_sv = sv_newmortal(); |
4108 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
4109 | (unsigned long)++PL_evalseq, |
4110 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
4111 | tmpbuf = SvPVX(temp_sv); |
4112 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
4113 | } |
4114 | else | |
d9fad198 | 4115 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 4116 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 4117 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 4118 | SAVECOPLINE(&PL_compiling); |
57843af0 | 4119 | CopLINE_set(&PL_compiling, 1); |
d819b83a DM |
4120 | /* special case: an eval '' executed within the DB package gets lexically |
4121 | * placed in the first non-DB CV rather than the current CV - this | |
4122 | * allows the debugger to execute code, find lexicals etc, in the | |
4123 | * scope of the code being debugged. Passing &seq gets find_runcv | |
4124 | * to do the dirty work for us */ | |
4125 | runcv = find_runcv(&seq); | |
a0d0e21e | 4126 | |
6b35e009 | 4127 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 4128 | PUSHEVAL(cx, 0); |
f39bc417 | 4129 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
4130 | |
4131 | /* prepare to compile string */ | |
4132 | ||
a44e3ce2 | 4133 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 4134 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
78da7625 | 4135 | else { |
c8cb8d55 FC |
4136 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
4137 | deleting the eval's FILEGV from the stash before gv_check() runs | |
4138 | (i.e. before run-time proper). To work around the coredump that | |
4139 | ensues, we always turn GvMULTI_on for any globals that were | |
4140 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
78da7625 FC |
4141 | char *const safestr = savepvn(tmpbuf, len); |
4142 | SAVEDELETE(PL_defstash, safestr, len); | |
4143 | saved_delete = TRUE; | |
4144 | } | |
4145 | ||
a0d0e21e | 4146 | PUTBACK; |
f9bddea7 | 4147 | |
104a8185 | 4148 | if (doeval(gimme, runcv, seq, saved_hh)) { |
f9bddea7 NC |
4149 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4150 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4151 | : PERLDB_SAVESRC_NOSUBS) { | |
4152 | /* Retain the filegv we created. */ | |
78da7625 | 4153 | } else if (!saved_delete) { |
f9bddea7 NC |
4154 | char *const safestr = savepvn(tmpbuf, len); |
4155 | SAVEDELETE(PL_defstash, safestr, len); | |
4156 | } | |
4157 | return DOCATCH(PL_eval_start); | |
4158 | } else { | |
486ec47a | 4159 | /* We have already left the scope set up earlier thanks to the LEAVE |
f9bddea7 | 4160 | in doeval(). */ |
eb044b10 NC |
4161 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4162 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4163 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 | 4164 | /* Retain the filegv we created. */ |
7857f360 | 4165 | } else if (!saved_delete) { |
f9bddea7 NC |
4166 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); |
4167 | } | |
4168 | return PL_op->op_next; | |
4169 | } | |
a0d0e21e LW |
4170 | } |
4171 | ||
4172 | PP(pp_leaveeval) | |
4173 | { | |
27da23d5 | 4174 | dVAR; dSP; |
a0d0e21e LW |
4175 | SV **newsp; |
4176 | PMOP *newpm; | |
4177 | I32 gimme; | |
eb578fdb | 4178 | PERL_CONTEXT *cx; |
a0d0e21e | 4179 | OP *retop; |
06b5626a | 4180 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e | 4181 | I32 optype; |
b6494f15 | 4182 | SV *namesv; |
676a678a | 4183 | CV *evalcv; |
a0d0e21e | 4184 | |
011c3814 | 4185 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4186 | POPBLOCK(cx,newpm); |
4187 | POPEVAL(cx); | |
b6494f15 | 4188 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 4189 | retop = cx->blk_eval.retop; |
676a678a | 4190 | evalcv = cx->blk_eval.cv; |
a0d0e21e | 4191 | |
a1f49e72 | 4192 | TAINT_NOT; |
b9d76716 VP |
4193 | SP = adjust_stack_on_leave((gimme == G_VOID) ? SP : newsp, SP, newsp, |
4194 | gimme, SVs_TEMP); | |
3280af22 | 4195 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4196 | |
4fdae800 | 4197 | #ifdef DEBUGGING |
676a678a | 4198 | assert(CvDEPTH(evalcv) == 1); |
4fdae800 | 4199 | #endif |
676a678a | 4200 | CvDEPTH(evalcv) = 0; |
4fdae800 | 4201 | |
1ce6579f | 4202 | if (optype == OP_REQUIRE && |
924508f0 | 4203 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 4204 | { |
1ce6579f | 4205 | /* Unassume the success we assumed earlier. */ |
b6494f15 | 4206 | (void)hv_delete(GvHVn(PL_incgv), |
ecad31f0 | 4207 | SvPVX_const(namesv), |
c60dbbc3 | 4208 | SvUTF8(namesv) ? -(I32)SvCUR(namesv) : (I32)SvCUR(namesv), |
b6494f15 VP |
4209 | G_DISCARD); |
4210 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", | |
4211 | SVfARG(namesv)); | |
c5df3096 | 4212 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
4213 | } |
4214 | else { | |
d343c3ef | 4215 | LEAVE_with_name("eval"); |
8433848b | 4216 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 4217 | CLEAR_ERRSV(); |
8433848b | 4218 | } |
a0d0e21e | 4219 | } |
a0d0e21e LW |
4220 | |
4221 | RETURNOP(retop); | |
4222 | } | |
4223 | ||
edb2152a NC |
4224 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
4225 | close to the related Perl_create_eval_scope. */ | |
4226 | void | |
4227 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 4228 | { |
edb2152a NC |
4229 | SV **newsp; |
4230 | PMOP *newpm; | |
4231 | I32 gimme; | |
eb578fdb | 4232 | PERL_CONTEXT *cx; |
edb2152a NC |
4233 | I32 optype; |
4234 | ||
4235 | POPBLOCK(cx,newpm); | |
4236 | POPEVAL(cx); | |
4237 | PL_curpm = newpm; | |
d343c3ef | 4238 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
4239 | PERL_UNUSED_VAR(newsp); |
4240 | PERL_UNUSED_VAR(gimme); | |
4241 | PERL_UNUSED_VAR(optype); | |
4242 | } | |
a0d0e21e | 4243 | |
edb2152a NC |
4244 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
4245 | also needed by Perl_fold_constants. */ | |
4246 | PERL_CONTEXT * | |
4247 | Perl_create_eval_scope(pTHX_ U32 flags) | |
4248 | { | |
4249 | PERL_CONTEXT *cx; | |
4250 | const I32 gimme = GIMME_V; | |
4251 | ||
d343c3ef | 4252 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
4253 | SAVETMPS; |
4254 | ||
edb2152a | 4255 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 4256 | PUSHEVAL(cx, 0); |
a0d0e21e | 4257 | |
faef0170 | 4258 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
4259 | if (flags & G_KEEPERR) |
4260 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
4261 | else |
4262 | CLEAR_ERRSV(); | |
edb2152a NC |
4263 | if (flags & G_FAKINGEVAL) { |
4264 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
4265 | } | |
4266 | return cx; | |
4267 | } | |
4268 | ||
4269 | PP(pp_entertry) | |
4270 | { | |
4271 | dVAR; | |
df528165 | 4272 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4273 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4274 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4275 | } |
4276 | ||
4277 | PP(pp_leavetry) | |
4278 | { | |
27da23d5 | 4279 | dVAR; dSP; |
a0d0e21e LW |
4280 | SV **newsp; |
4281 | PMOP *newpm; | |
4282 | I32 gimme; | |
eb578fdb | 4283 | PERL_CONTEXT *cx; |
a0d0e21e LW |
4284 | I32 optype; |
4285 | ||
011c3814 | 4286 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4287 | POPBLOCK(cx,newpm); |
4288 | POPEVAL(cx); | |
9d4ba2ae | 4289 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4290 | |
a1f49e72 | 4291 | TAINT_NOT; |
b9d76716 | 4292 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
3280af22 | 4293 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4294 | |
d343c3ef | 4295 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4296 | CLEAR_ERRSV(); |
745cf2ff | 4297 | RETURN; |
a0d0e21e LW |
4298 | } |
4299 | ||
0d863452 RH |
4300 | PP(pp_entergiven) |
4301 | { | |
4302 | dVAR; dSP; | |
eb578fdb | 4303 | PERL_CONTEXT *cx; |
0d863452 RH |
4304 | const I32 gimme = GIMME_V; |
4305 | ||
d343c3ef | 4306 | ENTER_with_name("given"); |
0d863452 RH |
4307 | SAVETMPS; |
4308 | ||
b5a64814 FC |
4309 | if (PL_op->op_targ) { |
4310 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); | |
4311 | SvREFCNT_dec(PAD_SVl(PL_op->op_targ)); | |
4312 | PAD_SVl(PL_op->op_targ) = SvREFCNT_inc_NN(POPs); | |
4313 | } | |
4314 | else { | |
4315 | SAVE_DEFSV; | |
4316 | DEFSV_set(POPs); | |
4317 | } | |
0d863452 RH |
4318 | |
4319 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4320 | PUSHGIVEN(cx); | |
4321 | ||
4322 | RETURN; | |
4323 | } | |
4324 | ||
4325 | PP(pp_leavegiven) | |
4326 | { | |
4327 | dVAR; dSP; | |
eb578fdb | 4328 | PERL_CONTEXT *cx; |
0d863452 RH |
4329 | I32 gimme; |
4330 | SV **newsp; | |
4331 | PMOP *newpm; | |
96a5add6 | 4332 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4333 | |
4334 | POPBLOCK(cx,newpm); | |
4335 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4336 | |
25b991bf | 4337 | TAINT_NOT; |
b9d76716 | 4338 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
25b991bf | 4339 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
0d863452 | 4340 | |
d343c3ef | 4341 | LEAVE_with_name("given"); |
25b991bf | 4342 | RETURN; |
0d863452 RH |
4343 | } |
4344 | ||
4345 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4346 | STATIC PMOP * |
84679df5 | 4347 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 4348 | { |
97aff369 | 4349 | dVAR; |
0d863452 | 4350 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
4351 | |
4352 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4353 | ||
d6106309 | 4354 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4355 | |
0d863452 | 4356 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4357 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4358 | SAVEOP(); |
4359 | return matcher; | |
4360 | } | |
4361 | ||
4136a0f7 | 4362 | STATIC bool |
0d863452 RH |
4363 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4364 | { | |
97aff369 | 4365 | dVAR; |
0d863452 | 4366 | dSP; |
7918f24d NC |
4367 | |
4368 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4369 | |
4370 | PL_op = (OP *) matcher; | |
4371 | XPUSHs(sv); | |
4372 | PUTBACK; | |
897d3989 | 4373 | (void) Perl_pp_match(aTHX); |
0d863452 RH |
4374 | SPAGAIN; |
4375 | return (SvTRUEx(POPs)); | |
4376 | } | |
4377 | ||
4136a0f7 | 4378 | STATIC void |
0d863452 RH |
4379 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4380 | { | |
97aff369 | 4381 | dVAR; |
7918f24d NC |
4382 | |
4383 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4384 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4385 | |
0d863452 | 4386 | FREETMPS; |
d343c3ef | 4387 | LEAVE_with_name("matcher"); |
0d863452 RH |
4388 | } |
4389 | ||
4390 | /* Do a smart match */ | |
4391 | PP(pp_smartmatch) | |
4392 | { | |
d7c0d282 | 4393 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
be88a5c3 | 4394 | return do_smartmatch(NULL, NULL, 0); |
0d863452 RH |
4395 | } |
4396 | ||
4b021f5f RGS |
4397 | /* This version of do_smartmatch() implements the |
4398 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4399 | */ |
4136a0f7 | 4400 | STATIC OP * |
be88a5c3 | 4401 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other, const bool copied) |
0d863452 | 4402 | { |
97aff369 | 4403 | dVAR; |
0d863452 RH |
4404 | dSP; |
4405 | ||
41e726ac | 4406 | bool object_on_left = FALSE; |
0d863452 RH |
4407 | SV *e = TOPs; /* e is for 'expression' */ |
4408 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4409 | |
6f1401dc DM |
4410 | /* Take care only to invoke mg_get() once for each argument. |
4411 | * Currently we do this by copying the SV if it's magical. */ | |
4412 | if (d) { | |
be88a5c3 | 4413 | if (!copied && SvGMAGICAL(d)) |
6f1401dc DM |
4414 | d = sv_mortalcopy(d); |
4415 | } | |
4416 | else | |
4417 | d = &PL_sv_undef; | |
4418 | ||
4419 | assert(e); | |
4420 | if (SvGMAGICAL(e)) | |
4421 | e = sv_mortalcopy(e); | |
4422 | ||
2c9d2554 | 4423 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4424 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4425 | SV * tmpsv; |
4426 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4427 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4428 | ||
b900a653 | 4429 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noleft); |
7c41e62e RGS |
4430 | if (tmpsv) { |
4431 | SPAGAIN; | |
4432 | (void)POPs; | |
4433 | SETs(tmpsv); | |
4434 | RETURN; | |
4435 | } | |
d7c0d282 | 4436 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4437 | } |
62ec5f58 | 4438 | |
0d863452 RH |
4439 | SP -= 2; /* Pop the values */ |
4440 | ||
0d863452 | 4441 | |
b0138e99 | 4442 | /* ~~ undef */ |
62ec5f58 | 4443 | if (!SvOK(e)) { |
d7c0d282 | 4444 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4445 | if (SvOK(d)) |
33570f8b RGS |
4446 | RETPUSHNO; |
4447 | else | |
62ec5f58 | 4448 | RETPUSHYES; |
33570f8b | 4449 | } |
e67b97bd | 4450 | |
d7c0d282 DM |
4451 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4452 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4453 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4454 | } |
41e726ac RGS |
4455 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4456 | object_on_left = TRUE; | |
62ec5f58 | 4457 | |
b0138e99 | 4458 | /* ~~ sub */ |
a4a197da | 4459 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4460 | I32 c; |
41e726ac RGS |
4461 | if (object_on_left) { |
4462 | goto sm_any_sub; /* Treat objects like scalars */ | |
4463 | } | |
4464 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4465 | /* Test sub truth for each key */ |
4466 | HE *he; | |
4467 | bool andedresults = TRUE; | |
4468 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4469 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4470 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4471 | if (numkeys == 0) |
07edf497 | 4472 | RETPUSHYES; |
a4a197da | 4473 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4474 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4475 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4476 | SAVETMPS; |
4477 | PUSHMARK(SP); | |
4478 | PUSHs(hv_iterkeysv(he)); | |
4479 | PUTBACK; | |
4480 | c = call_sv(e, G_SCALAR); | |
4481 | SPAGAIN; | |
4482 | if (c == 0) | |
4483 | andedresults = FALSE; | |
4484 | else | |
4485 | andedresults = SvTRUEx(POPs) && andedresults; | |
4486 | FREETMPS; | |
d343c3ef | 4487 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4488 | } |
4489 | if (andedresults) | |
4490 | RETPUSHYES; | |
4491 | else | |
4492 | RETPUSHNO; | |
4493 | } | |
4494 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4495 | /* Test sub truth for each element */ | |
4496 | I32 i; | |
4497 | bool andedresults = TRUE; | |
4498 | AV *av = (AV*) SvRV(d); | |
4499 | const I32 len = av_len(av); | |
d7c0d282 | 4500 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4501 | if (len == -1) |
07edf497 | 4502 | RETPUSHYES; |
a4a197da RGS |
4503 | for (i = 0; i <= len; ++i) { |
4504 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4505 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4506 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4507 | SAVETMPS; |
4508 | PUSHMARK(SP); | |
4509 | if (svp) | |
4510 | PUSHs(*svp); | |
4511 | PUTBACK; | |
4512 | c = call_sv(e, G_SCALAR); | |
4513 | SPAGAIN; | |
4514 | if (c == 0) | |
4515 | andedresults = FALSE; | |
4516 | else | |
4517 | andedresults = SvTRUEx(POPs) && andedresults; | |
4518 | FREETMPS; | |
d343c3ef | 4519 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4520 | } |
4521 | if (andedresults) | |
4522 | RETPUSHYES; | |
4523 | else | |
4524 | RETPUSHNO; | |
4525 | } | |
4526 | else { | |
41e726ac | 4527 | sm_any_sub: |
d7c0d282 | 4528 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4529 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4530 | SAVETMPS; |
4531 | PUSHMARK(SP); | |
4532 | PUSHs(d); | |
4533 | PUTBACK; | |
4534 | c = call_sv(e, G_SCALAR); | |
4535 | SPAGAIN; | |
4536 | if (c == 0) | |
4537 | PUSHs(&PL_sv_no); | |
4538 | else if (SvTEMP(TOPs)) | |
4539 | SvREFCNT_inc_void(TOPs); | |
4540 | FREETMPS; | |
d343c3ef | 4541 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4542 | RETURN; |
4543 | } | |
0d863452 | 4544 | } |
b0138e99 | 4545 | /* ~~ %hash */ |
61a621c6 | 4546 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4547 | if (object_on_left) { |
4548 | goto sm_any_hash; /* Treat objects like scalars */ | |
4549 | } | |
4550 | else if (!SvOK(d)) { | |
d7c0d282 | 4551 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4552 | RETPUSHNO; |
4553 | } | |
4554 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4555 | /* Check that the key-sets are identical */ |
4556 | HE *he; | |
61a621c6 | 4557 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4558 | bool tied = FALSE; |
4559 | bool other_tied = FALSE; | |
4560 | U32 this_key_count = 0, | |
4561 | other_key_count = 0; | |
33ed63a2 | 4562 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4563 | |
4564 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4565 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4566 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4567 | tied = TRUE; |
4568 | } | |
ad64d0ec | 4569 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4570 | HV * const temp = other_hv; |
33ed63a2 RGS |
4571 | other_hv = hv; |
4572 | hv = temp; | |
0d863452 RH |
4573 | tied = TRUE; |
4574 | } | |
ad64d0ec | 4575 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4576 | other_tied = TRUE; |
4577 | ||
33ed63a2 | 4578 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4579 | RETPUSHNO; |
4580 | ||
4581 | /* The hashes have the same number of keys, so it suffices | |
4582 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4583 | (void) hv_iterinit(hv); |
4584 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4585 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4586 | |
4587 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4588 | ++ this_key_count; |
4589 | ||
b15feb55 | 4590 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4591 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4592 | RETPUSHNO; |
4593 | } | |
4594 | } | |
4595 | ||
4596 | if (other_tied) { | |
4597 | (void) hv_iterinit(other_hv); | |
4598 | while ( hv_iternext(other_hv) ) | |
4599 | ++other_key_count; | |
4600 | } | |
4601 | else | |
4602 | other_key_count = HvUSEDKEYS(other_hv); | |
4603 | ||
4604 | if (this_key_count != other_key_count) | |
4605 | RETPUSHNO; | |
4606 | else | |
4607 | RETPUSHYES; | |
4608 | } | |
61a621c6 RGS |
4609 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4610 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4611 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4612 | I32 i; |
33ed63a2 | 4613 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4614 | |
d7c0d282 | 4615 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4616 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4617 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4618 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4619 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4620 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4621 | RETPUSHYES; |
4622 | } | |
0d863452 | 4623 | } |
71b0fb34 | 4624 | RETPUSHNO; |
0d863452 | 4625 | } |
a566f585 | 4626 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4627 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4628 | sm_regex_hash: |
4629 | { | |
4630 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4631 | HE *he; | |
4632 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4633 | ||
4634 | (void) hv_iterinit(hv); | |
4635 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4636 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4637 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4638 | (void) hv_iterinit(hv); | |
4639 | destroy_matcher(matcher); | |
4640 | RETPUSHYES; | |
4641 | } | |
0d863452 | 4642 | } |
ea0c2dbd RGS |
4643 | destroy_matcher(matcher); |
4644 | RETPUSHNO; | |
0d863452 | 4645 | } |
0d863452 RH |
4646 | } |
4647 | else { | |
41e726ac | 4648 | sm_any_hash: |
d7c0d282 | 4649 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4650 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4651 | RETPUSHYES; |
4652 | else | |
4653 | RETPUSHNO; | |
4654 | } | |
4655 | } | |
b0138e99 RGS |
4656 | /* ~~ @array */ |
4657 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4658 | if (object_on_left) { |
4659 | goto sm_any_array; /* Treat objects like scalars */ | |
4660 | } | |
4661 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4662 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4663 | const I32 other_len = av_len(other_av) + 1; | |
4664 | I32 i; | |
4665 | ||
d7c0d282 | 4666 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4667 | for (i = 0; i < other_len; ++i) { |
4668 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4669 | |
4670 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4671 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4672 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4673 | RETPUSHYES; |
4674 | } | |
4675 | } | |
4676 | RETPUSHNO; | |
4677 | } | |
4678 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4679 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4680 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4681 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4682 | RETPUSHNO; |
4683 | else { | |
4684 | I32 i; | |
c445ea15 | 4685 | const I32 other_len = av_len(other_av); |
0d863452 | 4686 | |
a0714e2c | 4687 | if (NULL == seen_this) { |
0d863452 | 4688 | seen_this = newHV(); |
ad64d0ec | 4689 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4690 | } |
a0714e2c | 4691 | if (NULL == seen_other) { |
6bc991bf | 4692 | seen_other = newHV(); |
ad64d0ec | 4693 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4694 | } |
4695 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4696 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4697 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4698 | ||
0d863452 | 4699 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4700 | if ((this_elem && SvOK(*this_elem)) |
4701 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4702 | RETPUSHNO; |
4703 | } | |
365c4e3d RGS |
4704 | else if (hv_exists_ent(seen_this, |
4705 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4706 | hv_exists_ent(seen_other, | |
4707 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4708 | { |
4709 | if (*this_elem != *other_elem) | |
4710 | RETPUSHNO; | |
4711 | } | |
4712 | else { | |
04fe65b0 RGS |
4713 | (void)hv_store_ent(seen_this, |
4714 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4715 | &PL_sv_undef, 0); | |
4716 | (void)hv_store_ent(seen_other, | |
4717 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4718 | &PL_sv_undef, 0); | |
0d863452 | 4719 | PUSHs(*other_elem); |
a566f585 | 4720 | PUSHs(*this_elem); |
0d863452 RH |
4721 | |
4722 | PUTBACK; | |
d7c0d282 | 4723 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
be88a5c3 | 4724 | (void) do_smartmatch(seen_this, seen_other, 0); |
0d863452 | 4725 | SPAGAIN; |
d7c0d282 | 4726 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4727 | |
4728 | if (!SvTRUEx(POPs)) | |
4729 | RETPUSHNO; | |
4730 | } | |
4731 | } | |
4732 | RETPUSHYES; | |
4733 | } | |
4734 | } | |
a566f585 | 4735 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4736 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4737 | sm_regex_array: |
4738 | { | |
4739 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4740 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4741 | I32 i; | |
0d863452 | 4742 | |
ea0c2dbd RGS |
4743 | for(i = 0; i <= this_len; ++i) { |
4744 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4745 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4746 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4747 | destroy_matcher(matcher); | |
4748 | RETPUSHYES; | |
4749 | } | |
0d863452 | 4750 | } |
ea0c2dbd RGS |
4751 | destroy_matcher(matcher); |
4752 | RETPUSHNO; | |
0d863452 | 4753 | } |
0d863452 | 4754 | } |
015eb7b9 RGS |
4755 | else if (!SvOK(d)) { |
4756 | /* undef ~~ array */ | |
4757 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4758 | I32 i; |
4759 | ||
d7c0d282 | 4760 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4761 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4762 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4763 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4764 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4765 | RETPUSHYES; |
4766 | } | |
4767 | RETPUSHNO; | |
4768 | } | |
015eb7b9 | 4769 | else { |
41e726ac RGS |
4770 | sm_any_array: |
4771 | { | |
4772 | I32 i; | |
4773 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4774 | |
d7c0d282 | 4775 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4776 | for (i = 0; i <= this_len; ++i) { |
4777 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4778 | if (!svp) | |
4779 | continue; | |
015eb7b9 | 4780 | |
41e726ac RGS |
4781 | PUSHs(d); |
4782 | PUSHs(*svp); | |
4783 | PUTBACK; | |
4784 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4785 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
be88a5c3 | 4786 | (void) do_smartmatch(NULL, NULL, 1); |
41e726ac | 4787 | SPAGAIN; |
d7c0d282 | 4788 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4789 | if (SvTRUEx(POPs)) |
4790 | RETPUSHYES; | |
4791 | } | |
4792 | RETPUSHNO; | |
0d863452 | 4793 | } |
0d863452 RH |
4794 | } |
4795 | } | |
b0138e99 | 4796 | /* ~~ qr// */ |
a566f585 | 4797 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4798 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4799 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4800 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4801 | goto sm_regex_hash; |
4802 | } | |
4803 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4804 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4805 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4806 | goto sm_regex_array; |
4807 | } | |
4808 | else { | |
4809 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4810 | |
d7c0d282 | 4811 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4812 | PUTBACK; |
4813 | PUSHs(matcher_matches_sv(matcher, d) | |
4814 | ? &PL_sv_yes | |
4815 | : &PL_sv_no); | |
4816 | destroy_matcher(matcher); | |
4817 | RETURN; | |
4818 | } | |
0d863452 | 4819 | } |
b0138e99 | 4820 | /* ~~ scalar */ |
2c9d2554 RGS |
4821 | /* See if there is overload magic on left */ |
4822 | else if (object_on_left && SvAMAGIC(d)) { | |
4823 | SV *tmpsv; | |
d7c0d282 DM |
4824 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4825 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4826 | PUSHs(d); PUSHs(e); |
4827 | PUTBACK; | |
4828 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4829 | if (tmpsv) { | |
4830 | SPAGAIN; | |
4831 | (void)POPs; | |
4832 | SETs(tmpsv); | |
4833 | RETURN; | |
4834 | } | |
4835 | SP -= 2; | |
d7c0d282 | 4836 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4837 | goto sm_any_scalar; |
4838 | } | |
fb51372e RGS |
4839 | else if (!SvOK(d)) { |
4840 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4841 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4842 | RETPUSHNO; |
4843 | } | |
2c9d2554 RGS |
4844 | else |
4845 | sm_any_scalar: | |
4846 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4847 | DEBUG_M(if (SvNIOK(e)) |
4848 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4849 | else | |
4850 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4851 | ); | |
33ed63a2 | 4852 | /* numeric comparison */ |
0d863452 RH |
4853 | PUSHs(d); PUSHs(e); |
4854 | PUTBACK; | |
a98fe34d | 4855 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
897d3989 | 4856 | (void) Perl_pp_i_eq(aTHX); |
0d863452 | 4857 | else |
897d3989 | 4858 | (void) Perl_pp_eq(aTHX); |
0d863452 RH |
4859 | SPAGAIN; |
4860 | if (SvTRUEx(POPs)) | |
4861 | RETPUSHYES; | |
4862 | else | |
4863 | RETPUSHNO; | |
4864 | } | |
4865 | ||
4866 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4867 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4868 | PUSHs(d); PUSHs(e); |
4869 | PUTBACK; | |
897d3989 | 4870 | return Perl_pp_seq(aTHX); |
0d863452 RH |
4871 | } |
4872 | ||
4873 | PP(pp_enterwhen) | |
4874 | { | |
4875 | dVAR; dSP; | |
eb578fdb | 4876 | PERL_CONTEXT *cx; |
0d863452 RH |
4877 | const I32 gimme = GIMME_V; |
4878 | ||
4879 | /* This is essentially an optimization: if the match | |
4880 | fails, we don't want to push a context and then | |
4881 | pop it again right away, so we skip straight | |
4882 | to the op that follows the leavewhen. | |
25b991bf | 4883 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4884 | */ |
4885 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4886 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4887 | |
c08f093b | 4888 | ENTER_with_name("when"); |
0d863452 RH |
4889 | SAVETMPS; |
4890 | ||
4891 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4892 | PUSHWHEN(cx); | |
4893 | ||
4894 | RETURN; | |
4895 | } | |
4896 | ||
4897 | PP(pp_leavewhen) | |
4898 | { | |
4899 | dVAR; dSP; | |
c08f093b | 4900 | I32 cxix; |
eb578fdb | 4901 | PERL_CONTEXT *cx; |
c08f093b | 4902 | I32 gimme; |
0d863452 RH |
4903 | SV **newsp; |
4904 | PMOP *newpm; | |
4905 | ||
c08f093b VP |
4906 | cxix = dopoptogiven(cxstack_ix); |
4907 | if (cxix < 0) | |
fc7debfb FC |
4908 | /* diag_listed_as: Can't "when" outside a topicalizer */ |
4909 | DIE(aTHX_ "Can't \"%s\" outside a topicalizer", | |
4910 | PL_op->op_flags & OPf_SPECIAL ? "default" : "when"); | |
c08f093b | 4911 | |
0d863452 RH |
4912 | POPBLOCK(cx,newpm); |
4913 | assert(CxTYPE(cx) == CXt_WHEN); | |
4914 | ||
c08f093b VP |
4915 | TAINT_NOT; |
4916 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); | |
0d863452 RH |
4917 | PL_curpm = newpm; /* pop $1 et al */ |
4918 | ||
c08f093b VP |
4919 | LEAVE_with_name("when"); |
4920 | ||
4921 | if (cxix < cxstack_ix) | |
4922 | dounwind(cxix); | |
4923 | ||
4924 | cx = &cxstack[cxix]; | |
4925 | ||
4926 | if (CxFOREACH(cx)) { | |
4927 | /* clear off anything above the scope we're re-entering */ | |
4928 | I32 inner = PL_scopestack_ix; | |
4929 | ||
4930 | TOPBLOCK(cx); | |
4931 | if (PL_scopestack_ix < inner) | |
4932 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4933 | PL_curcop = cx->blk_oldcop; | |
4934 | ||
4935 | return cx->blk_loop.my_op->op_nextop; | |
4936 | } | |
4937 | else | |
b1b5a4ae | 4938 | RETURNOP(cx->blk_givwhen.leave_op); |
0d863452 RH |
4939 | } |
4940 | ||
4941 | PP(pp_continue) | |
4942 | { | |
c08f093b | 4943 | dVAR; dSP; |
0d863452 | 4944 | I32 cxix; |
eb578fdb | 4945 | PERL_CONTEXT *cx; |
c08f093b VP |
4946 | I32 gimme; |
4947 | SV **newsp; | |
4948 | PMOP *newpm; | |
7be5bd17 FR |
4949 | |
4950 | PERL_UNUSED_VAR(gimme); | |
0d863452 RH |
4951 | |
4952 | cxix = dopoptowhen(cxstack_ix); | |
4953 | if (cxix < 0) | |
4954 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
c08f093b | 4955 | |
0d863452 RH |
4956 | if (cxix < cxstack_ix) |
4957 | dounwind(cxix); | |
4958 | ||
c08f093b VP |
4959 | POPBLOCK(cx,newpm); |
4960 | assert(CxTYPE(cx) == CXt_WHEN); | |
4961 | ||
4962 | SP = newsp; | |
4963 | PL_curpm = newpm; /* pop $1 et al */ | |
4964 | ||
4965 | LEAVE_with_name("when"); | |
4966 | RETURNOP(cx->blk_givwhen.leave_op->op_next); | |
0d863452 RH |
4967 | } |
4968 | ||
4969 | PP(pp_break) | |
4970 | { | |
4971 | dVAR; | |
4972 | I32 cxix; | |
eb578fdb | 4973 | PERL_CONTEXT *cx; |
25b991bf | 4974 | |
0d863452 | 4975 | cxix = dopoptogiven(cxstack_ix); |
c08f093b VP |
4976 | if (cxix < 0) |
4977 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4978 | ||
4979 | cx = &cxstack[cxix]; | |
4980 | if (CxFOREACH(cx)) | |
0d863452 RH |
4981 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); |
4982 | ||
4983 | if (cxix < cxstack_ix) | |
4984 | dounwind(cxix); | |
0d863452 | 4985 | |
0787ea8a VP |
4986 | /* Restore the sp at the time we entered the given block */ |
4987 | TOPBLOCK(cx); | |
4988 | ||
c08f093b | 4989 | return cx->blk_givwhen.leave_op; |
0d863452 RH |
4990 | } |
4991 | ||
74e0ddf7 | 4992 | static MAGIC * |
cea2e8a9 | 4993 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4994 | { |
4995 | STRLEN len; | |
eb578fdb KW |
4996 | char *s = SvPV(sv, len); |
4997 | char *send; | |
4998 | char *base = NULL; /* start of current field */ | |
4999 | I32 skipspaces = 0; /* number of contiguous spaces seen */ | |
086b26f3 DM |
5000 | bool noblank = FALSE; /* ~ or ~~ seen on this line */ |
5001 | bool repeat = FALSE; /* ~~ seen on this line */ | |
5002 | bool postspace = FALSE; /* a text field may need right padding */ | |
dea28490 | 5003 | U32 *fops; |
eb578fdb | 5004 | U32 *fpc; |
086b26f3 | 5005 | U32 *linepc = NULL; /* position of last FF_LINEMARK */ |
eb578fdb | 5006 | I32 arg; |
086b26f3 DM |
5007 | bool ischop; /* it's a ^ rather than a @ */ |
5008 | bool unchopnum = FALSE; /* at least one @ (i.e. non-chop) num field seen */ | |
a1b95068 | 5009 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ |
3808a683 DM |
5010 | MAGIC *mg = NULL; |
5011 | SV *sv_copy; | |
a0d0e21e | 5012 | |
7918f24d NC |
5013 | PERL_ARGS_ASSERT_DOPARSEFORM; |
5014 | ||
55497cff | 5015 | if (len == 0) |
cea2e8a9 | 5016 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 5017 | |
3808a683 DM |
5018 | if (SvTYPE(sv) >= SVt_PVMG) { |
5019 | /* This might, of course, still return NULL. */ | |
5020 | mg = mg_find(sv, PERL_MAGIC_fm); | |
5021 | } else { | |
5022 | sv_upgrade(sv, SVt_PVMG); | |
5023 | } | |
5024 | ||
5025 | if (mg) { | |
5026 | /* still the same as previously-compiled string? */ | |
5027 | SV *old = mg->mg_obj; | |
5028 | if ( !(!!SvUTF8(old) ^ !!SvUTF8(sv)) | |
5029 | && len == SvCUR(old) | |
5030 | && strnEQ(SvPVX(old), SvPVX(sv), len) | |
b57b1734 DM |
5031 | ) { |
5032 | DEBUG_f(PerlIO_printf(Perl_debug_log,"Re-using compiled format\n")); | |
3808a683 | 5033 | return mg; |
b57b1734 | 5034 | } |
3808a683 | 5035 | |
b57b1734 | 5036 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Re-compiling format\n")); |
3808a683 DM |
5037 | Safefree(mg->mg_ptr); |
5038 | mg->mg_ptr = NULL; | |
5039 | SvREFCNT_dec(old); | |
5040 | mg->mg_obj = NULL; | |
5041 | } | |
b57b1734 DM |
5042 | else { |
5043 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Compiling format\n")); | |
3808a683 | 5044 | mg = sv_magicext(sv, NULL, PERL_MAGIC_fm, &PL_vtbl_fm, NULL, 0); |
b57b1734 | 5045 | } |
3808a683 DM |
5046 | |
5047 | sv_copy = newSVpvn_utf8(s, len, SvUTF8(sv)); | |
5048 | s = SvPV(sv_copy, len); /* work on the copy, not the original */ | |
5049 | send = s + len; | |
5050 | ||
5051 | ||
815f25c6 DM |
5052 | /* estimate the buffer size needed */ |
5053 | for (base = s; s <= send; s++) { | |
a1b95068 | 5054 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
5055 | maxops += 10; |
5056 | } | |
5057 | s = base; | |
c445ea15 | 5058 | base = NULL; |
815f25c6 | 5059 | |
a02a5408 | 5060 | Newx(fops, maxops, U32); |
a0d0e21e LW |
5061 | fpc = fops; |
5062 | ||
5063 | if (s < send) { | |
5064 | linepc = fpc; | |
5065 | *fpc++ = FF_LINEMARK; | |
5066 | noblank = repeat = FALSE; | |
5067 | base = s; | |
5068 | } | |
5069 | ||
5070 | while (s <= send) { | |
5071 | switch (*s++) { | |
5072 | default: | |
5073 | skipspaces = 0; | |
5074 | continue; | |
5075 | ||
5076 | case '~': | |
5077 | if (*s == '~') { | |
5078 | repeat = TRUE; | |
b57b1734 DM |
5079 | skipspaces++; |
5080 | s++; | |
a0d0e21e LW |
5081 | } |
5082 | noblank = TRUE; | |
a0d0e21e LW |
5083 | /* FALL THROUGH */ |
5084 | case ' ': case '\t': | |
5085 | skipspaces++; | |
5086 | continue; | |
a1b95068 WL |
5087 | case 0: |
5088 | if (s < send) { | |
5089 | skipspaces = 0; | |
5090 | continue; | |
5091 | } /* else FALL THROUGH */ | |
5092 | case '\n': | |
a0d0e21e LW |
5093 | arg = s - base; |
5094 | skipspaces++; | |
5095 | arg -= skipspaces; | |
5096 | if (arg) { | |
5f05dabc | 5097 | if (postspace) |
a0d0e21e | 5098 | *fpc++ = FF_SPACE; |
a0d0e21e | 5099 | *fpc++ = FF_LITERAL; |
76912796 | 5100 | *fpc++ = (U32)arg; |
a0d0e21e | 5101 | } |
5f05dabc | 5102 | postspace = FALSE; |
a0d0e21e LW |
5103 | if (s <= send) |
5104 | skipspaces--; | |
5105 | if (skipspaces) { | |
5106 | *fpc++ = FF_SKIP; | |
76912796 | 5107 | *fpc++ = (U32)skipspaces; |
a0d0e21e LW |
5108 | } |
5109 | skipspaces = 0; | |
5110 | if (s <= send) | |
5111 | *fpc++ = FF_NEWLINE; | |
5112 | if (noblank) { | |
5113 | *fpc++ = FF_BLANK; | |
5114 | if (repeat) | |
5115 | arg = fpc - linepc + 1; | |
5116 | else | |
5117 | arg = 0; | |
76912796 | 5118 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5119 | } |
5120 | if (s < send) { | |
5121 | linepc = fpc; | |
5122 | *fpc++ = FF_LINEMARK; | |
5123 | noblank = repeat = FALSE; | |
5124 | base = s; | |
5125 | } | |
5126 | else | |
5127 | s++; | |
5128 | continue; | |
5129 | ||
5130 | case '@': | |
5131 | case '^': | |
5132 | ischop = s[-1] == '^'; | |
5133 | ||
5134 | if (postspace) { | |
5135 | *fpc++ = FF_SPACE; | |
5136 | postspace = FALSE; | |
5137 | } | |
5138 | arg = (s - base) - 1; | |
5139 | if (arg) { | |
5140 | *fpc++ = FF_LITERAL; | |
76912796 | 5141 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5142 | } |
5143 | ||
5144 | base = s - 1; | |
5145 | *fpc++ = FF_FETCH; | |
086b26f3 | 5146 | if (*s == '*') { /* @* or ^* */ |
a0d0e21e | 5147 | s++; |
a1b95068 WL |
5148 | *fpc++ = 2; /* skip the @* or ^* */ |
5149 | if (ischop) { | |
5150 | *fpc++ = FF_LINESNGL; | |
5151 | *fpc++ = FF_CHOP; | |
5152 | } else | |
5153 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e | 5154 | } |
086b26f3 | 5155 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { /* @###, ^### */ |
a701009a | 5156 | arg = ischop ? FORM_NUM_BLANK : 0; |
a0d0e21e LW |
5157 | base = s - 1; |
5158 | while (*s == '#') | |
5159 | s++; | |
5160 | if (*s == '.') { | |
06b5626a | 5161 | const char * const f = ++s; |
a0d0e21e LW |
5162 | while (*s == '#') |
5163 | s++; | |
a701009a | 5164 | arg |= FORM_NUM_POINT + (s - f); |
a0d0e21e LW |
5165 | } |
5166 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5167 | *fpc++ = FF_DECIMAL; | |
76912796 | 5168 | *fpc++ = (U32)arg; |
a1b95068 | 5169 | unchopnum |= ! ischop; |
784707d5 JP |
5170 | } |
5171 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
a701009a | 5172 | arg = ischop ? FORM_NUM_BLANK : 0; |
784707d5 JP |
5173 | base = s - 1; |
5174 | s++; /* skip the '0' first */ | |
5175 | while (*s == '#') | |
5176 | s++; | |
5177 | if (*s == '.') { | |
06b5626a | 5178 | const char * const f = ++s; |
784707d5 JP |
5179 | while (*s == '#') |
5180 | s++; | |
a701009a | 5181 | arg |= FORM_NUM_POINT + (s - f); |
784707d5 JP |
5182 | } |
5183 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5184 | *fpc++ = FF_0DECIMAL; | |
76912796 | 5185 | *fpc++ = (U32)arg; |
a1b95068 | 5186 | unchopnum |= ! ischop; |
a0d0e21e | 5187 | } |
086b26f3 | 5188 | else { /* text field */ |
a0d0e21e LW |
5189 | I32 prespace = 0; |
5190 | bool ismore = FALSE; | |
5191 | ||
5192 | if (*s == '>') { | |
5193 | while (*++s == '>') ; | |
5194 | prespace = FF_SPACE; | |
5195 | } | |
5196 | else if (*s == '|') { | |
5197 | while (*++s == '|') ; | |
5198 | prespace = FF_HALFSPACE; | |
5199 | postspace = TRUE; | |
5200 | } | |
5201 | else { | |
5202 | if (*s == '<') | |
5203 | while (*++s == '<') ; | |
5204 | postspace = TRUE; | |
5205 | } | |
5206 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
5207 | s += 3; | |
5208 | ismore = TRUE; | |
5209 | } | |
5210 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5211 | ||
5212 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
5213 | ||
5214 | if (prespace) | |
76912796 | 5215 | *fpc++ = (U32)prespace; /* add SPACE or HALFSPACE */ |
a0d0e21e LW |
5216 | *fpc++ = FF_ITEM; |
5217 | if (ismore) | |
5218 | *fpc++ = FF_MORE; | |
5219 | if (ischop) | |
5220 | *fpc++ = FF_CHOP; | |
5221 | } | |
5222 | base = s; | |
5223 | skipspaces = 0; | |
5224 | continue; | |
5225 | } | |
5226 | } | |
5227 | *fpc++ = FF_END; | |
5228 | ||
815f25c6 | 5229 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e | 5230 | arg = fpc - fops; |
74e0ddf7 | 5231 | |
3808a683 | 5232 | mg->mg_ptr = (char *) fops; |
74e0ddf7 | 5233 | mg->mg_len = arg * sizeof(U32); |
3808a683 DM |
5234 | mg->mg_obj = sv_copy; |
5235 | mg->mg_flags |= MGf_REFCOUNTED; | |
a1b95068 | 5236 | |
bfed75c6 | 5237 | if (unchopnum && repeat) |
75f63940 | 5238 | Perl_die(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
74e0ddf7 NC |
5239 | |
5240 | return mg; | |
a1b95068 WL |
5241 | } |
5242 | ||
5243 | ||
5244 | STATIC bool | |
5245 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
5246 | { | |
5247 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
5248 | NV pwr = 1; | |
5249 | NV eps = 0.5; | |
5250 | bool res = FALSE; | |
5251 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
5252 | ||
a701009a | 5253 | if (frcsize & FORM_NUM_POINT) |
a1b95068 | 5254 | intsize--; |
a701009a | 5255 | frcsize &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
a1b95068 WL |
5256 | intsize -= frcsize; |
5257 | ||
5258 | while (intsize--) pwr *= 10.0; | |
5259 | while (frcsize--) eps /= 10.0; | |
5260 | ||
5261 | if( value >= 0 ){ | |
5262 | if (value + eps >= pwr) | |
5263 | res = TRUE; | |
5264 | } else { | |
5265 | if (value - eps <= -pwr) | |
5266 | res = TRUE; | |
5267 | } | |
5268 | return res; | |
a0d0e21e | 5269 | } |
4e35701f | 5270 | |
bbed91b5 | 5271 | static I32 |
0bd48802 | 5272 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 5273 | { |
27da23d5 | 5274 | dVAR; |
0bd48802 | 5275 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 5276 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
5277 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
5278 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5279 | int status = 0; |
ec0b63d7 | 5280 | SV *upstream; |
941a98a0 | 5281 | STRLEN got_len; |
162177c1 Z |
5282 | char *got_p = NULL; |
5283 | char *prune_from = NULL; | |
34113e50 | 5284 | bool read_from_cache = FALSE; |
bb7a0f54 | 5285 | STRLEN umaxlen; |
d60d2019 | 5286 | SV *err = NULL; |
bb7a0f54 | 5287 | |
7918f24d NC |
5288 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5289 | ||
bb7a0f54 MHM |
5290 | assert(maxlen >= 0); |
5291 | umaxlen = maxlen; | |
5675696b | 5292 | |
bbed91b5 KF |
5293 | /* I was having segfault trouble under Linux 2.2.5 after a |
5294 | parse error occured. (Had to hack around it with a test | |
13765c85 | 5295 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5296 | not sure where the trouble is yet. XXX */ |
5297 | ||
4464f08e NC |
5298 | { |
5299 | SV *const cache = datasv; | |
937b367d NC |
5300 | if (SvOK(cache)) { |
5301 | STRLEN cache_len; | |
5302 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5303 | STRLEN take = 0; |
5304 | ||
bb7a0f54 | 5305 | if (umaxlen) { |
941a98a0 NC |
5306 | /* Running in block mode and we have some cached data already. |
5307 | */ | |
bb7a0f54 | 5308 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5309 | /* In fact, so much data we don't even need to call |
5310 | filter_read. */ | |
bb7a0f54 | 5311 | take = umaxlen; |
941a98a0 NC |
5312 | } |
5313 | } else { | |
10edeb5d JH |
5314 | const char *const first_nl = |
5315 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5316 | if (first_nl) { |
5317 | take = first_nl + 1 - cache_p; | |
5318 | } | |
5319 | } | |
5320 | if (take) { | |
5321 | sv_catpvn(buf_sv, cache_p, take); | |
5322 | sv_chop(cache, cache_p + take); | |
486ec47a | 5323 | /* Definitely not EOF */ |
937b367d NC |
5324 | return 1; |
5325 | } | |
941a98a0 | 5326 | |
937b367d | 5327 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5328 | if (umaxlen) { |
5329 | umaxlen -= cache_len; | |
941a98a0 | 5330 | } |
937b367d | 5331 | SvOK_off(cache); |
34113e50 | 5332 | read_from_cache = TRUE; |
937b367d NC |
5333 | } |
5334 | } | |
ec0b63d7 | 5335 | |
34113e50 NC |
5336 | /* Filter API says that the filter appends to the contents of the buffer. |
5337 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5338 | then clearly what it contains is already filtered by this filter, so we | |
5339 | don't want to pass it in a second time. | |
5340 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5341 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5342 | ? sv_newmortal() : buf_sv; | |
5343 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5344 | |
bbed91b5 | 5345 | if (filter_has_file) { |
67e70b33 | 5346 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5347 | } |
5348 | ||
34113e50 | 5349 | if (filter_sub && status >= 0) { |
39644a26 | 5350 | dSP; |
bbed91b5 KF |
5351 | int count; |
5352 | ||
d343c3ef | 5353 | ENTER_with_name("call_filter_sub"); |
55b5114f | 5354 | SAVE_DEFSV; |
bbed91b5 KF |
5355 | SAVETMPS; |
5356 | EXTEND(SP, 2); | |
5357 | ||
414bf5ae | 5358 | DEFSV_set(upstream); |
bbed91b5 | 5359 | PUSHMARK(SP); |
6e449a3a | 5360 | mPUSHi(0); |
bbed91b5 KF |
5361 | if (filter_state) { |
5362 | PUSHs(filter_state); | |
5363 | } | |
5364 | PUTBACK; | |
d60d2019 | 5365 | count = call_sv(filter_sub, G_SCALAR|G_EVAL); |
bbed91b5 KF |
5366 | SPAGAIN; |
5367 | ||
5368 | if (count > 0) { | |
5369 | SV *out = POPs; | |
5370 | if (SvOK(out)) { | |
941a98a0 | 5371 | status = SvIV(out); |
bbed91b5 | 5372 | } |
eed484f9 DD |
5373 | else { |
5374 | SV * const errsv = ERRSV; | |
5375 | if (SvTRUE_NN(errsv)) | |
5376 | err = newSVsv(errsv); | |
d60d2019 | 5377 | } |
bbed91b5 KF |
5378 | } |
5379 | ||
5380 | PUTBACK; | |
5381 | FREETMPS; | |
d343c3ef | 5382 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5383 | } |
5384 | ||
b68108d9 | 5385 | if (SvIsCOW(upstream)) sv_force_normal(upstream); |
d60d2019 | 5386 | if(!err && SvOK(upstream)) { |
941a98a0 | 5387 | got_p = SvPV(upstream, got_len); |
bb7a0f54 MHM |
5388 | if (umaxlen) { |
5389 | if (got_len > umaxlen) { | |
5390 | prune_from = got_p + umaxlen; | |
937b367d | 5391 | } |
941a98a0 | 5392 | } else { |
162177c1 | 5393 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5394 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5395 | /* There's a second line here... */ | |
5396 | prune_from = first_nl + 1; | |
937b367d | 5397 | } |
937b367d NC |
5398 | } |
5399 | } | |
d60d2019 | 5400 | if (!err && prune_from) { |
941a98a0 NC |
5401 | /* Oh. Too long. Stuff some in our cache. */ |
5402 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5403 | SV *const cache = datasv; |
941a98a0 | 5404 | |
4464f08e | 5405 | if (SvOK(cache)) { |
941a98a0 NC |
5406 | /* Cache should be empty. */ |
5407 | assert(!SvCUR(cache)); | |
5408 | } | |
5409 | ||
5410 | sv_setpvn(cache, prune_from, cached_len); | |
5411 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5412 | "If it breaks, you get to keep both parts" | |
5413 | (Your code is broken if you don't put them back together again | |
5414 | before something notices.) */ | |
5415 | if (SvUTF8(upstream)) { | |
5416 | SvUTF8_on(cache); | |
5417 | } | |
5418 | SvCUR_set(upstream, got_len - cached_len); | |
162177c1 | 5419 | *prune_from = 0; |
941a98a0 NC |
5420 | /* Can't yet be EOF */ |
5421 | if (status == 0) | |
5422 | status = 1; | |
5423 | } | |
937b367d | 5424 | |
34113e50 NC |
5425 | /* If they are at EOF but buf_sv has something in it, then they may never |
5426 | have touched the SV upstream, so it may be undefined. If we naively | |
5427 | concatenate it then we get a warning about use of uninitialised value. | |
5428 | */ | |
d60d2019 JL |
5429 | if (!err && upstream != buf_sv && |
5430 | (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
5431 | sv_catsv(buf_sv, upstream); |
5432 | } | |
5433 | ||
941a98a0 | 5434 | if (status <= 0) { |
bbed91b5 | 5435 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5436 | if (filter_state) { |
5437 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5438 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5439 | } |
5440 | if (filter_sub) { | |
5441 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5442 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5443 | } |
0bd48802 | 5444 | filter_del(S_run_user_filter); |
bbed91b5 | 5445 | } |
d60d2019 JL |
5446 | |
5447 | if (err) | |
5448 | croak_sv(err); | |
5449 | ||
34113e50 NC |
5450 | if (status == 0 && read_from_cache) { |
5451 | /* If we read some data from the cache (and by getting here it implies | |
5452 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5453 | report that to our caller. */ | |
5454 | return 1; | |
5455 | } | |
941a98a0 | 5456 | return status; |
bbed91b5 | 5457 | } |
84d4ea48 | 5458 | |
be4b629d CN |
5459 | /* perhaps someone can come up with a better name for |
5460 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5461 | static bool |
5f66b61c | 5462 | S_path_is_absolute(const char *name) |
be4b629d | 5463 | { |
7918f24d NC |
5464 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5465 | ||
be4b629d | 5466 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5467 | #ifdef WIN32 |
36f064bc CL |
5468 | || (*name == '.' && ((name[1] == '/' || |
5469 | (name[1] == '.' && name[2] == '/')) | |
5470 | || (name[1] == '\\' || | |
5471 | ( name[1] == '.' && name[2] == '\\'))) | |
5472 | ) | |
5473 | #else | |
be4b629d | 5474 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5475 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5476 | #endif |
0bd48802 | 5477 | ) |
be4b629d CN |
5478 | { |
5479 | return TRUE; | |
5480 | } | |
5481 | else | |
5482 | return FALSE; | |
5483 | } | |
241d1a3b NC |
5484 | |
5485 | /* | |
5486 | * Local variables: | |
5487 | * c-indentation-style: bsd | |
5488 | * c-basic-offset: 4 | |
14d04a33 | 5489 | * indent-tabs-mode: nil |
241d1a3b NC |
5490 | * End: |
5491 | * | |
14d04a33 | 5492 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 5493 | */ |