Commit | Line | Data |
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a0d0e21e | 1 | /* cop.h |
79072805 | 2 | * |
1129b882 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
8622e0e2 | 4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others |
79072805 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 | * | |
8622e0e2 | 9 | * Control ops (cops) are one of the two ops OP_NEXTSTATE and OP_DBSTATE, |
775e5718 | 10 | * that (loosely speaking) are statement separators. |
3ffa1527 JH |
11 | * They hold information important for lexical state and error reporting. |
12 | * At run time, PL_curcop is set to point to the most recently executed cop, | |
a3985cdc | 13 | * and thus can be used to determine our current state. |
79072805 LW |
14 | */ |
15 | ||
0d2925a6 | 16 | /* A jmpenv packages the state required to perform a proper non-local jump. |
1c98cc53 DM |
17 | * Note that there is a PL_start_env initialized when perl starts, and |
18 | * PL_top_env points to this initially, so PL_top_env should always be | |
19 | * non-null. | |
0d2925a6 | 20 | * |
1c98cc53 DM |
21 | * Existence of a non-null PL_top_env->je_prev implies it is valid to call |
22 | * longjmp() at that runlevel (we make sure PL_start_env.je_prev is always | |
0d2925a6 DM |
23 | * null to ensure this). |
24 | * | |
25 | * je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
26 | * establish a local jmpenv to handle exception traps. Care must be taken | |
27 | * to restore the previous value of je_mustcatch before exiting the | |
28 | * stack frame iff JMPENV_PUSH was not called in that stack frame. | |
29 | * GSAR 97-03-27 | |
30 | */ | |
31 | ||
32 | struct jmpenv { | |
33 | struct jmpenv * je_prev; | |
caa674f3 | 34 | Sigjmp_buf je_buf; /* uninit if je_prev is NULL */ |
0d2925a6 DM |
35 | int je_ret; /* last exception thrown */ |
36 | bool je_mustcatch; /* need to call longjmp()? */ | |
37 | }; | |
38 | ||
39 | typedef struct jmpenv JMPENV; | |
40 | ||
0d2925a6 DM |
41 | /* |
42 | * How to build the first jmpenv. | |
43 | * | |
44 | * top_env needs to be non-zero. It points to an area | |
45 | * in which longjmp() stuff is stored, as C callstack | |
46 | * info there at least is thread specific this has to | |
47 | * be per-thread. Otherwise a 'die' in a thread gives | |
48 | * that thread the C stack of last thread to do an eval {}! | |
49 | */ | |
50 | ||
51 | #define JMPENV_BOOTSTRAP \ | |
52 | STMT_START { \ | |
caa674f3 DD |
53 | PERL_POISON_EXPR(PoisonNew(&PL_start_env, 1, JMPENV));\ |
54 | PL_top_env = &PL_start_env; \ | |
55 | PL_start_env.je_prev = NULL; \ | |
0d2925a6 DM |
56 | PL_start_env.je_ret = -1; \ |
57 | PL_start_env.je_mustcatch = TRUE; \ | |
0d2925a6 DM |
58 | } STMT_END |
59 | ||
60 | /* | |
61 | * PERL_FLEXIBLE_EXCEPTIONS | |
62 | * | |
63 | * All the flexible exceptions code has been removed. | |
64 | * See the following threads for details: | |
65 | * | |
66 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2004-07/msg00378.html | |
67 | * | |
68 | * Joshua's original patches (which weren't applied) and discussion: | |
69 | * | |
70 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01396.html | |
71 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01489.html | |
72 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01491.html | |
73 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01608.html | |
74 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg02144.html | |
75 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg02998.html | |
76 | * | |
77 | * Chip's reworked patch and discussion: | |
78 | * | |
79 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1999-03/msg00520.html | |
80 | * | |
81 | * The flaw in these patches (which went unnoticed at the time) was | |
82 | * that they moved some code that could potentially die() out of the | |
83 | * region protected by the setjmp()s. This caused exceptions within | |
84 | * END blocks and such to not be handled by the correct setjmp(). | |
85 | * | |
86 | * The original patches that introduces flexible exceptions were: | |
87 | * | |
ff7e9008 MS |
88 | * http://perl5.git.perl.org/perl.git/commit/312caa8e97f1c7ee342a9895c2f0e749625b4929 |
89 | * http://perl5.git.perl.org/perl.git/commit/14dd3ad8c9bf82cf09798a22cc89a9862dfd6d1a | |
90 | * | |
0d2925a6 DM |
91 | */ |
92 | ||
93 | #define dJMPENV JMPENV cur_env | |
94 | ||
95 | #define JMPENV_PUSH(v) \ | |
96 | STMT_START { \ | |
1c98cc53 DM |
97 | DEBUG_l({ \ |
98 | int i = 0; JMPENV *p = PL_top_env; \ | |
99 | while (p) { i++; p = p->je_prev; } \ | |
91e35ba1 DM |
100 | Perl_deb(aTHX_ "JUMPENV_PUSH level=%d at %s:%d\n", \ |
101 | i, __FILE__, __LINE__);}) \ | |
0d2925a6 | 102 | cur_env.je_prev = PL_top_env; \ |
0d2925a6 | 103 | cur_env.je_ret = PerlProc_setjmp(cur_env.je_buf, SCOPE_SAVES_SIGNAL_MASK); \ |
0d2925a6 DM |
104 | PL_top_env = &cur_env; \ |
105 | cur_env.je_mustcatch = FALSE; \ | |
106 | (v) = cur_env.je_ret; \ | |
107 | } STMT_END | |
108 | ||
109 | #define JMPENV_POP \ | |
110 | STMT_START { \ | |
1c98cc53 DM |
111 | DEBUG_l({ \ |
112 | int i = -1; JMPENV *p = PL_top_env; \ | |
113 | while (p) { i++; p = p->je_prev; } \ | |
91e35ba1 DM |
114 | Perl_deb(aTHX_ "JUMPENV_POP level=%d at %s:%d\n", \ |
115 | i, __FILE__, __LINE__);}) \ | |
d3ab86be | 116 | assert(PL_top_env == &cur_env); \ |
0d2925a6 DM |
117 | PL_top_env = cur_env.je_prev; \ |
118 | } STMT_END | |
119 | ||
120 | #define JMPENV_JUMP(v) \ | |
121 | STMT_START { \ | |
1c98cc53 DM |
122 | DEBUG_l({ \ |
123 | int i = -1; JMPENV *p = PL_top_env; \ | |
124 | while (p) { i++; p = p->je_prev; } \ | |
91e35ba1 DM |
125 | Perl_deb(aTHX_ "JUMPENV_JUMP(%d) level=%d at %s:%d\n", \ |
126 | (int)v, i, __FILE__, __LINE__);}) \ | |
0d2925a6 DM |
127 | if (PL_top_env->je_prev) \ |
128 | PerlProc_longjmp(PL_top_env->je_buf, (v)); \ | |
129 | if ((v) == 2) \ | |
37038d91 | 130 | PerlProc_exit(STATUS_EXIT); \ |
5637ef5b | 131 | PerlIO_printf(PerlIO_stderr(), "panic: top_env, v=%d\n", (int)v); \ |
0d2925a6 DM |
132 | PerlProc_exit(1); \ |
133 | } STMT_END | |
134 | ||
135 | #define CATCH_GET (PL_top_env->je_mustcatch) | |
1c98cc53 DM |
136 | #define CATCH_SET(v) \ |
137 | STMT_START { \ | |
138 | DEBUG_l( \ | |
139 | Perl_deb(aTHX_ \ | |
140 | "JUMPLEVEL set catch %d => %d (for %p) at %s:%d\n", \ | |
141 | PL_top_env->je_mustcatch, v, (void*)PL_top_env, \ | |
142 | __FILE__, __LINE__);) \ | |
143 | PL_top_env->je_mustcatch = (v); \ | |
144 | } STMT_END | |
0d2925a6 | 145 | |
20439bc7 Z |
146 | /* |
147 | =head1 COP Hint Hashes | |
148 | */ | |
149 | ||
150 | typedef struct refcounted_he COPHH; | |
151 | ||
152 | #define COPHH_KEY_UTF8 REFCOUNTED_HE_KEY_UTF8 | |
153 | ||
154 | /* | |
ffd08bbf | 155 | =for apidoc Amx|SV *|cophh_fetch_pvn|const COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|U32 flags |
20439bc7 Z |
156 | |
157 | Look up the entry in the cop hints hash I<cophh> with the key specified by | |
158 | I<keypv> and I<keylen>. If I<flags> has the C<COPHH_KEY_UTF8> bit set, | |
159 | the key octets are interpreted as UTF-8, otherwise they are interpreted | |
160 | as Latin-1. I<hash> is a precomputed hash of the key string, or zero if | |
161 | it has not been precomputed. Returns a mortal scalar copy of the value | |
162 | associated with the key, or C<&PL_sv_placeholder> if there is no value | |
163 | associated with the key. | |
164 | ||
165 | =cut | |
166 | */ | |
167 | ||
168 | #define cophh_fetch_pvn(cophh, keypv, keylen, hash, flags) \ | |
169 | Perl_refcounted_he_fetch_pvn(aTHX_ cophh, keypv, keylen, hash, flags) | |
170 | ||
171 | /* | |
ffd08bbf | 172 | =for apidoc Amx|SV *|cophh_fetch_pvs|const COPHH *cophh|const char *key|U32 flags |
20439bc7 Z |
173 | |
174 | Like L</cophh_fetch_pvn>, but takes a literal string instead of a | |
175 | string/length pair, and no precomputed hash. | |
176 | ||
177 | =cut | |
178 | */ | |
179 | ||
180 | #define cophh_fetch_pvs(cophh, key, flags) \ | |
181 | Perl_refcounted_he_fetch_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, flags) | |
182 | ||
183 | /* | |
ffd08bbf | 184 | =for apidoc Amx|SV *|cophh_fetch_pv|const COPHH *cophh|const char *key|U32 hash|U32 flags |
20439bc7 Z |
185 | |
186 | Like L</cophh_fetch_pvn>, but takes a nul-terminated string instead of | |
187 | a string/length pair. | |
188 | ||
189 | =cut | |
190 | */ | |
191 | ||
192 | #define cophh_fetch_pv(cophh, key, hash, flags) \ | |
193 | Perl_refcounted_he_fetch_pv(aTHX_ cophh, key, hash, flags) | |
194 | ||
195 | /* | |
ffd08bbf | 196 | =for apidoc Amx|SV *|cophh_fetch_sv|const COPHH *cophh|SV *key|U32 hash|U32 flags |
20439bc7 Z |
197 | |
198 | Like L</cophh_fetch_pvn>, but takes a Perl scalar instead of a | |
199 | string/length pair. | |
200 | ||
201 | =cut | |
202 | */ | |
203 | ||
204 | #define cophh_fetch_sv(cophh, key, hash, flags) \ | |
205 | Perl_refcounted_he_fetch_sv(aTHX_ cophh, key, hash, flags) | |
206 | ||
207 | /* | |
ffd08bbf | 208 | =for apidoc Amx|HV *|cophh_2hv|const COPHH *cophh|U32 flags |
20439bc7 Z |
209 | |
210 | Generates and returns a standard Perl hash representing the full set of | |
211 | key/value pairs in the cop hints hash I<cophh>. I<flags> is currently | |
212 | unused and must be zero. | |
213 | ||
214 | =cut | |
215 | */ | |
216 | ||
217 | #define cophh_2hv(cophh, flags) \ | |
218 | Perl_refcounted_he_chain_2hv(aTHX_ cophh, flags) | |
219 | ||
220 | /* | |
ffd08bbf | 221 | =for apidoc Amx|COPHH *|cophh_copy|COPHH *cophh |
20439bc7 Z |
222 | |
223 | Make and return a complete copy of the cop hints hash I<cophh>. | |
224 | ||
225 | =cut | |
226 | */ | |
227 | ||
228 | #define cophh_copy(cophh) Perl_refcounted_he_inc(aTHX_ cophh) | |
229 | ||
230 | /* | |
ffd08bbf | 231 | =for apidoc Amx|void|cophh_free|COPHH *cophh |
20439bc7 Z |
232 | |
233 | Discard the cop hints hash I<cophh>, freeing all resources associated | |
234 | with it. | |
235 | ||
236 | =cut | |
237 | */ | |
238 | ||
239 | #define cophh_free(cophh) Perl_refcounted_he_free(aTHX_ cophh) | |
240 | ||
241 | /* | |
ffd08bbf | 242 | =for apidoc Amx|COPHH *|cophh_new_empty |
20439bc7 Z |
243 | |
244 | Generate and return a fresh cop hints hash containing no entries. | |
245 | ||
246 | =cut | |
247 | */ | |
248 | ||
249 | #define cophh_new_empty() ((COPHH *)NULL) | |
250 | ||
251 | /* | |
ffd08bbf | 252 | =for apidoc Amx|COPHH *|cophh_store_pvn|COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|SV *value|U32 flags |
20439bc7 Z |
253 | |
254 | Stores a value, associated with a key, in the cop hints hash I<cophh>, | |
255 | and returns the modified hash. The returned hash pointer is in general | |
256 | not the same as the hash pointer that was passed in. The input hash is | |
257 | consumed by the function, and the pointer to it must not be subsequently | |
258 | used. Use L</cophh_copy> if you need both hashes. | |
259 | ||
260 | The key is specified by I<keypv> and I<keylen>. If I<flags> has the | |
261 | C<COPHH_KEY_UTF8> bit set, the key octets are interpreted as UTF-8, | |
262 | otherwise they are interpreted as Latin-1. I<hash> is a precomputed | |
263 | hash of the key string, or zero if it has not been precomputed. | |
264 | ||
265 | I<value> is the scalar value to store for this key. I<value> is copied | |
266 | by this function, which thus does not take ownership of any reference | |
267 | to it, and later changes to the scalar will not be reflected in the | |
268 | value visible in the cop hints hash. Complex types of scalar will not | |
269 | be stored with referential integrity, but will be coerced to strings. | |
270 | ||
271 | =cut | |
272 | */ | |
273 | ||
274 | #define cophh_store_pvn(cophh, keypv, keylen, hash, value, flags) \ | |
275 | Perl_refcounted_he_new_pvn(aTHX_ cophh, keypv, keylen, hash, value, flags) | |
276 | ||
277 | /* | |
ffd08bbf | 278 | =for apidoc Amx|COPHH *|cophh_store_pvs|const COPHH *cophh|const char *key|SV *value|U32 flags |
20439bc7 Z |
279 | |
280 | Like L</cophh_store_pvn>, but takes a literal string instead of a | |
281 | string/length pair, and no precomputed hash. | |
282 | ||
283 | =cut | |
284 | */ | |
285 | ||
286 | #define cophh_store_pvs(cophh, key, value, flags) \ | |
287 | Perl_refcounted_he_new_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, value, flags) | |
288 | ||
289 | /* | |
ffd08bbf | 290 | =for apidoc Amx|COPHH *|cophh_store_pv|const COPHH *cophh|const char *key|U32 hash|SV *value|U32 flags |
20439bc7 Z |
291 | |
292 | Like L</cophh_store_pvn>, but takes a nul-terminated string instead of | |
293 | a string/length pair. | |
294 | ||
295 | =cut | |
296 | */ | |
297 | ||
298 | #define cophh_store_pv(cophh, key, hash, value, flags) \ | |
299 | Perl_refcounted_he_new_pv(aTHX_ cophh, key, hash, value, flags) | |
300 | ||
301 | /* | |
ffd08bbf | 302 | =for apidoc Amx|COPHH *|cophh_store_sv|const COPHH *cophh|SV *key|U32 hash|SV *value|U32 flags |
20439bc7 Z |
303 | |
304 | Like L</cophh_store_pvn>, but takes a Perl scalar instead of a | |
305 | string/length pair. | |
306 | ||
307 | =cut | |
308 | */ | |
309 | ||
310 | #define cophh_store_sv(cophh, key, hash, value, flags) \ | |
311 | Perl_refcounted_he_new_sv(aTHX_ cophh, key, hash, value, flags) | |
312 | ||
313 | /* | |
ffd08bbf | 314 | =for apidoc Amx|COPHH *|cophh_delete_pvn|COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|U32 flags |
20439bc7 Z |
315 | |
316 | Delete a key and its associated value from the cop hints hash I<cophh>, | |
317 | and returns the modified hash. The returned hash pointer is in general | |
318 | not the same as the hash pointer that was passed in. The input hash is | |
319 | consumed by the function, and the pointer to it must not be subsequently | |
320 | used. Use L</cophh_copy> if you need both hashes. | |
321 | ||
322 | The key is specified by I<keypv> and I<keylen>. If I<flags> has the | |
323 | C<COPHH_KEY_UTF8> bit set, the key octets are interpreted as UTF-8, | |
324 | otherwise they are interpreted as Latin-1. I<hash> is a precomputed | |
325 | hash of the key string, or zero if it has not been precomputed. | |
326 | ||
327 | =cut | |
328 | */ | |
329 | ||
330 | #define cophh_delete_pvn(cophh, keypv, keylen, hash, flags) \ | |
331 | Perl_refcounted_he_new_pvn(aTHX_ cophh, keypv, keylen, hash, \ | |
332 | (SV *)NULL, flags) | |
333 | ||
334 | /* | |
ffd08bbf | 335 | =for apidoc Amx|COPHH *|cophh_delete_pvs|const COPHH *cophh|const char *key|U32 flags |
20439bc7 Z |
336 | |
337 | Like L</cophh_delete_pvn>, but takes a literal string instead of a | |
338 | string/length pair, and no precomputed hash. | |
339 | ||
340 | =cut | |
341 | */ | |
342 | ||
343 | #define cophh_delete_pvs(cophh, key, flags) \ | |
344 | Perl_refcounted_he_new_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, \ | |
345 | (SV *)NULL, flags) | |
346 | ||
347 | /* | |
ffd08bbf | 348 | =for apidoc Amx|COPHH *|cophh_delete_pv|const COPHH *cophh|const char *key|U32 hash|U32 flags |
20439bc7 Z |
349 | |
350 | Like L</cophh_delete_pvn>, but takes a nul-terminated string instead of | |
351 | a string/length pair. | |
352 | ||
353 | =cut | |
354 | */ | |
355 | ||
356 | #define cophh_delete_pv(cophh, key, hash, flags) \ | |
357 | Perl_refcounted_he_new_pv(aTHX_ cophh, key, hash, (SV *)NULL, flags) | |
358 | ||
359 | /* | |
ffd08bbf | 360 | =for apidoc Amx|COPHH *|cophh_delete_sv|const COPHH *cophh|SV *key|U32 hash|U32 flags |
20439bc7 Z |
361 | |
362 | Like L</cophh_delete_pvn>, but takes a Perl scalar instead of a | |
363 | string/length pair. | |
364 | ||
365 | =cut | |
366 | */ | |
367 | ||
368 | #define cophh_delete_sv(cophh, key, hash, flags) \ | |
369 | Perl_refcounted_he_new_sv(aTHX_ cophh, key, hash, (SV *)NULL, flags) | |
0d2925a6 | 370 | |
5ac1e9b2 | 371 | #include "mydtrace.h" |
0d2925a6 | 372 | |
88df5f01 FC |
373 | struct cop { |
374 | BASEOP | |
375 | /* On LP64 putting this here takes advantage of the fact that BASEOP isn't | |
376 | an exact multiple of 8 bytes to save structure padding. */ | |
377 | line_t cop_line; /* line # of this command */ | |
378 | /* label for this construct is now stored in cop_hints_hash */ | |
57843af0 | 379 | #ifdef USE_ITHREADS |
88df5f01 FC |
380 | PADOFFSET cop_stashoff; /* offset into PL_stashpad, for the |
381 | package the line was compiled in */ | |
1dc74fdb | 382 | char * cop_file; /* file name the following line # is from */ |
57843af0 | 383 | #else |
88df5f01 | 384 | HV * cop_stash; /* package line was compiled in */ |
79072805 | 385 | GV * cop_filegv; /* file the following line # is from */ |
57843af0 | 386 | #endif |
88df5f01 FC |
387 | U32 cop_hints; /* hints bits from pragmata */ |
388 | U32 cop_seq; /* parse sequence number */ | |
389 | /* Beware. mg.c and warnings.pl assume the type of this is STRLEN *: */ | |
390 | STRLEN * cop_warnings; /* lexical warnings bitmask */ | |
391 | /* compile time state of %^H. See the comment in op.c for how this is | |
392 | used to recreate a hash to return from caller. */ | |
20439bc7 | 393 | COPHH * cop_hints_hash; |
79072805 LW |
394 | }; |
395 | ||
57843af0 | 396 | #ifdef USE_ITHREADS |
1dc74fdb FC |
397 | # define CopFILE(c) ((c)->cop_file) |
398 | # define CopFILEGV(c) (CopFILE(c) \ | |
399 | ? gv_fetchfile(CopFILE(c)) : NULL) | |
400 | ||
401 | # ifdef NETWARE | |
402 | # define CopFILE_set(c,pv) ((c)->cop_file = savepv(pv)) | |
d166b3ad | 403 | # define CopFILE_setn(c,pv,l) ((c)->cop_file = savepvn((pv),(l))) |
1dc74fdb FC |
404 | # else |
405 | # define CopFILE_set(c,pv) ((c)->cop_file = savesharedpv(pv)) | |
406 | # define CopFILE_setn(c,pv,l) ((c)->cop_file = savesharedpvn((pv),(l))) | |
407 | # endif | |
408 | ||
409 | # define CopFILESV(c) (CopFILE(c) \ | |
410 | ? GvSV(gv_fetchfile(CopFILE(c))) : NULL) | |
411 | # define CopFILEAV(c) (CopFILE(c) \ | |
412 | ? GvAV(gv_fetchfile(CopFILE(c))) : NULL) | |
413 | # define CopFILEAVx(c) (assert_(CopFILE(c)) \ | |
414 | GvAV(gv_fetchfile(CopFILE(c)))) | |
083fcd59 | 415 | |
d4d03940 FC |
416 | # define CopSTASH(c) PL_stashpad[(c)->cop_stashoff] |
417 | # define CopSTASH_set(c,hv) ((c)->cop_stashoff = (hv) \ | |
418 | ? alloccopstash(hv) \ | |
419 | : 0) | |
1dc74fdb FC |
420 | # ifdef NETWARE |
421 | # define CopFILE_free(c) SAVECOPFILE_FREE(c) | |
422 | # else | |
423 | # define CopFILE_free(c) (PerlMemShared_free(CopFILE(c)),(CopFILE(c) = NULL)) | |
424 | # endif | |
57843af0 GS |
425 | #else |
426 | # define CopFILEGV(c) ((c)->cop_filegv) | |
f4dd75d9 | 427 | # define CopFILEGV_set(c,gv) ((c)->cop_filegv = (GV*)SvREFCNT_inc(gv)) |
1dc74fdb FC |
428 | # define CopFILE_set(c,pv) CopFILEGV_set((c), gv_fetchfile(pv)) |
429 | # define CopFILE_setn(c,pv,l) CopFILEGV_set((c), gv_fetchfile_flags((pv),(l),0)) | |
430 | # define CopFILESV(c) (CopFILEGV(c) ? GvSV(CopFILEGV(c)) : NULL) | |
431 | # define CopFILEAV(c) (CopFILEGV(c) ? GvAV(CopFILEGV(c)) : NULL) | |
432 | # ifdef DEBUGGING | |
433 | # define CopFILEAVx(c) (assert(CopFILEGV(c)), GvAV(CopFILEGV(c))) | |
434 | # else | |
435 | # define CopFILEAVx(c) (GvAV(CopFILEGV(c))) | |
436 | # endif | |
437 | # define CopFILE(c) (CopFILEGV(c) \ | |
438 | ? GvNAME(CopFILEGV(c))+2 : NULL) | |
57843af0 | 439 | # define CopSTASH(c) ((c)->cop_stash) |
f4dd75d9 | 440 | # define CopSTASH_set(c,hv) ((c)->cop_stash = (hv)) |
a0714e2c | 441 | # define CopFILE_free(c) (SvREFCNT_dec(CopFILEGV(c)),(CopFILEGV(c) = NULL)) |
05ec9bb3 | 442 | |
57843af0 | 443 | #endif /* USE_ITHREADS */ |
20439bc7 | 444 | |
d4d03940 FC |
445 | #define CopSTASHPV(c) (CopSTASH(c) ? HvNAME_get(CopSTASH(c)) : NULL) |
446 | /* cop_stash is not refcounted */ | |
447 | #define CopSTASHPV_set(c,pv) CopSTASH_set((c), gv_stashpv(pv,GV_ADD)) | |
448 | #define CopSTASH_eq(c,hv) (CopSTASH(c) == (hv)) | |
d4d03940 | 449 | |
20439bc7 Z |
450 | #define CopHINTHASH_get(c) ((COPHH*)((c)->cop_hints_hash)) |
451 | #define CopHINTHASH_set(c,h) ((c)->cop_hints_hash = (h)) | |
452 | ||
453 | /* | |
454 | =head1 COP Hint Reading | |
455 | */ | |
456 | ||
457 | /* | |
458 | =for apidoc Am|SV *|cop_hints_fetch_pvn|const COP *cop|const char *keypv|STRLEN keylen|U32 hash|U32 flags | |
459 | ||
460 | Look up the hint entry in the cop I<cop> with the key specified by | |
461 | I<keypv> and I<keylen>. If I<flags> has the C<COPHH_KEY_UTF8> bit set, | |
462 | the key octets are interpreted as UTF-8, otherwise they are interpreted | |
463 | as Latin-1. I<hash> is a precomputed hash of the key string, or zero if | |
464 | it has not been precomputed. Returns a mortal scalar copy of the value | |
465 | associated with the key, or C<&PL_sv_placeholder> if there is no value | |
466 | associated with the key. | |
467 | ||
468 | =cut | |
469 | */ | |
470 | ||
471 | #define cop_hints_fetch_pvn(cop, keypv, keylen, hash, flags) \ | |
472 | cophh_fetch_pvn(CopHINTHASH_get(cop), keypv, keylen, hash, flags) | |
473 | ||
474 | /* | |
475 | =for apidoc Am|SV *|cop_hints_fetch_pvs|const COP *cop|const char *key|U32 flags | |
476 | ||
477 | Like L</cop_hints_fetch_pvn>, but takes a literal string instead of a | |
478 | string/length pair, and no precomputed hash. | |
479 | ||
480 | =cut | |
481 | */ | |
482 | ||
483 | #define cop_hints_fetch_pvs(cop, key, flags) \ | |
484 | cophh_fetch_pvs(CopHINTHASH_get(cop), key, flags) | |
485 | ||
486 | /* | |
487 | =for apidoc Am|SV *|cop_hints_fetch_pv|const COP *cop|const char *key|U32 hash|U32 flags | |
488 | ||
489 | Like L</cop_hints_fetch_pvn>, but takes a nul-terminated string instead | |
490 | of a string/length pair. | |
491 | ||
492 | =cut | |
493 | */ | |
494 | ||
495 | #define cop_hints_fetch_pv(cop, key, hash, flags) \ | |
496 | cophh_fetch_pv(CopHINTHASH_get(cop), key, hash, flags) | |
497 | ||
498 | /* | |
499 | =for apidoc Am|SV *|cop_hints_fetch_sv|const COP *cop|SV *key|U32 hash|U32 flags | |
500 | ||
501 | Like L</cop_hints_fetch_pvn>, but takes a Perl scalar instead of a | |
502 | string/length pair. | |
503 | ||
504 | =cut | |
505 | */ | |
506 | ||
507 | #define cop_hints_fetch_sv(cop, key, hash, flags) \ | |
508 | cophh_fetch_sv(CopHINTHASH_get(cop), key, hash, flags) | |
509 | ||
510 | /* | |
511 | =for apidoc Am|HV *|cop_hints_2hv|const COP *cop|U32 flags | |
512 | ||
513 | Generates and returns a standard Perl hash representing the full set of | |
514 | hint entries in the cop I<cop>. I<flags> is currently unused and must | |
515 | be zero. | |
516 | ||
517 | =cut | |
518 | */ | |
519 | ||
520 | #define cop_hints_2hv(cop, flags) \ | |
521 | cophh_2hv(CopHINTHASH_get(cop), flags) | |
522 | ||
aebc0cbe | 523 | #define CopLABEL(c) Perl_cop_fetch_label(aTHX_ (c), NULL, NULL) |
5db1eb8d BF |
524 | #define CopLABEL_len(c,len) Perl_cop_fetch_label(aTHX_ (c), len, NULL) |
525 | #define CopLABEL_len_flags(c,len,flags) Perl_cop_fetch_label(aTHX_ (c), len, flags) | |
dca6062a | 526 | #define CopLABEL_alloc(pv) ((pv)?savepv(pv):NULL) |
57843af0 | 527 | |
ed094faf | 528 | #define CopSTASH_ne(c,hv) (!CopSTASH_eq(c,hv)) |
cc49e20b | 529 | #define CopLINE(c) ((c)->cop_line) |
57843af0 GS |
530 | #define CopLINE_inc(c) (++CopLINE(c)) |
531 | #define CopLINE_dec(c) (--CopLINE(c)) | |
532 | #define CopLINE_set(c,l) (CopLINE(c) = (l)) | |
cc49e20b | 533 | |
248c2a4d | 534 | /* OutCopFILE() is CopFILE for output (caller, die, warn, etc.) */ |
e37778c2 | 535 | #define OutCopFILE(c) CopFILE(c) |
248c2a4d | 536 | |
d5ec2987 | 537 | #define CopHINTS_get(c) ((c)->cop_hints + 0) |
623e6609 | 538 | #define CopHINTS_set(c, h) STMT_START { \ |
d5ec2987 | 539 | (c)->cop_hints = (h); \ |
623e6609 NC |
540 | } STMT_END |
541 | ||
79072805 LW |
542 | /* |
543 | * Here we have some enormously heavy (or at least ponderous) wizardry. | |
544 | */ | |
545 | ||
546 | /* subroutine context */ | |
547 | struct block_sub { | |
f9c764c5 | 548 | OP * retop; /* op to execute on exit from sub */ |
8e663997 NC |
549 | /* Above here is the same for sub, format and eval. */ |
550 | CV * cv; | |
f9c764c5 | 551 | /* Above here is the same for sub and format. */ |
79072805 LW |
552 | AV * savearray; |
553 | AV * argarray; | |
bb172083 | 554 | I32 olddepth; |
f3548bdc | 555 | PAD *oldcomppad; |
f9c764c5 NC |
556 | }; |
557 | ||
558 | ||
559 | /* format context */ | |
560 | struct block_format { | |
f39bc417 | 561 | OP * retop; /* op to execute on exit from sub */ |
8e663997 NC |
562 | /* Above here is the same for sub, format and eval. */ |
563 | CV * cv; | |
f9c764c5 NC |
564 | /* Above here is the same for sub and format. */ |
565 | GV * gv; | |
566 | GV * dfoutgv; | |
79072805 LW |
567 | }; |
568 | ||
b36bdeca DM |
569 | /* base for the next two macros. Don't use directly. |
570 | * Note that the refcnt of the cv is incremented twice; The CX one is | |
571 | * decremented by LEAVESUB, the other by LEAVE. */ | |
572 | ||
ee98a1d6 | 573 | #define PUSHSUB_BASE(cx) \ |
88dbe4af FC |
574 | ENTRY_PROBE(CvNAMED(cv) \ |
575 | ? HEK_KEY(CvNAME_HEK(cv)) \ | |
576 | : GvENAME(CvGV(cv)), \ | |
c6903450 | 577 | CopFILE((const COP *)CvSTART(cv)), \ |
3e2413e5 DL |
578 | CopLINE((const COP *)CvSTART(cv)), \ |
579 | CopSTASHPV((const COP *)CvSTART(cv))); \ | |
5ac1e9b2 | 580 | \ |
79072805 | 581 | cx->blk_sub.cv = cv; \ |
b8f55b69 | 582 | cx->blk_sub.olddepth = CvDEPTH(cv); \ |
ae423868 | 583 | cx->cx_type |= (hasargs) ? CXp_HASARGS : 0; \ |
5f66b61c | 584 | cx->blk_sub.retop = NULL; \ |
b36bdeca | 585 | if (!CvDEPTH(cv)) { \ |
74c765eb AL |
586 | SvREFCNT_inc_simple_void_NN(cv); \ |
587 | SvREFCNT_inc_simple_void_NN(cv); \ | |
b36bdeca DM |
588 | SAVEFREESV(cv); \ |
589 | } | |
590 | ||
4587c532 | 591 | #define PUSHSUB_GET_LVALUE_MASK(func) \ |
777d9014 FC |
592 | /* If the context is indeterminate, then only the lvalue */ \ |
593 | /* flags that the caller also has are applicable. */ \ | |
4587c532 | 594 | ( \ |
777d9014 FC |
595 | (PL_op->op_flags & OPf_WANT) \ |
596 | ? OPpENTERSUB_LVAL_MASK \ | |
597 | : !(PL_op->op_private & OPpENTERSUB_LVAL_MASK) \ | |
4587c532 FC |
598 | ? 0 : (U8)func(aTHX) \ |
599 | ) | |
600 | ||
601 | #define PUSHSUB(cx) \ | |
602 | { \ | |
603 | U8 phlags = PUSHSUB_GET_LVALUE_MASK(Perl_was_lvalue_sub); \ | |
ee98a1d6 | 604 | PUSHSUB_BASE(cx) \ |
446d0787 | 605 | cx->blk_u16 = PL_op->op_private & \ |
0e9700df | 606 | (phlags|OPpDEREF); \ |
777d9014 | 607 | } |
79072805 | 608 | |
ee98a1d6 DM |
609 | /* variant for use by OP_DBSTATE, where op_private holds hint bits */ |
610 | #define PUSHSUB_DB(cx) \ | |
611 | PUSHSUB_BASE(cx) \ | |
446d0787 | 612 | cx->blk_u16 = 0; |
ee98a1d6 DM |
613 | |
614 | ||
10067d9a | 615 | #define PUSHFORMAT(cx, retop) \ |
f9c764c5 NC |
616 | cx->blk_format.cv = cv; \ |
617 | cx->blk_format.gv = gv; \ | |
618 | cx->blk_format.retop = (retop); \ | |
f9c764c5 | 619 | cx->blk_format.dfoutgv = PL_defoutgv; \ |
1956db7e | 620 | cx->blk_u16 = 0; \ |
ee23553f | 621 | if (!CvDEPTH(cv)) SvREFCNT_inc_simple_void_NN(cv); \ |
f32c7e86 | 622 | CvDEPTH(cv)++; \ |
f9c764c5 | 623 | SvREFCNT_inc_void(cx->blk_format.dfoutgv) |
79072805 | 624 | |
3db8f154 | 625 | #define POP_SAVEARRAY() \ |
6d4ff0d2 | 626 | STMT_START { \ |
3280af22 | 627 | SvREFCNT_dec(GvAV(PL_defgv)); \ |
a8bba7fa | 628 | GvAV(PL_defgv) = cx->blk_sub.savearray; \ |
6d4ff0d2 | 629 | } STMT_END |
6d4ff0d2 | 630 | |
ecf8e9dd | 631 | /* junk in @_ spells trouble when cloning CVs and in pp_caller(), so don't |
8e09340b GS |
632 | * leave any (a fast av_clear(ary), basically) */ |
633 | #define CLEAR_ARGARRAY(ary) \ | |
634 | STMT_START { \ | |
635 | AvMAX(ary) += AvARRAY(ary) - AvALLOC(ary); \ | |
9c6bc640 | 636 | AvARRAY(ary) = AvALLOC(ary); \ |
8e09340b GS |
637 | AvFILLp(ary) = -1; \ |
638 | } STMT_END | |
7766f137 | 639 | |
b0d9ce38 GS |
640 | #define POPSUB(cx,sv) \ |
641 | STMT_START { \ | |
25375124 | 642 | const I32 olddepth = cx->blk_sub.olddepth; \ |
1956db7e DM |
643 | if (!(cx->blk_u16 & CxPOPSUB_DONE)) { \ |
644 | cx->blk_u16 |= CxPOPSUB_DONE; \ | |
88dbe4af FC |
645 | RETURN_PROBE(CvNAMED(cx->blk_sub.cv) \ |
646 | ? HEK_KEY(CvNAME_HEK(cx->blk_sub.cv)) \ | |
647 | : GvENAME(CvGV(cx->blk_sub.cv)), \ | |
8f629a87 | 648 | CopFILE((COP*)CvSTART((const CV*)cx->blk_sub.cv)), \ |
3e2413e5 DL |
649 | CopLINE((COP*)CvSTART((const CV*)cx->blk_sub.cv)), \ |
650 | CopSTASHPV((COP*)CvSTART((const CV*)cx->blk_sub.cv))); \ | |
5ac1e9b2 | 651 | \ |
bafb2adc | 652 | if (CxHASARGS(cx)) { \ |
7766f137 | 653 | POP_SAVEARRAY(); \ |
d8b46c1b | 654 | /* abandon @_ if it got reified */ \ |
a8bba7fa | 655 | if (AvREAL(cx->blk_sub.argarray)) { \ |
e2d306cb | 656 | const SSize_t fill = AvFILLp(cx->blk_sub.argarray); \ |
2f995715 | 657 | SvREFCNT_dec_NN(cx->blk_sub.argarray); \ |
a8bba7fa GS |
658 | cx->blk_sub.argarray = newAV(); \ |
659 | av_extend(cx->blk_sub.argarray, fill); \ | |
11ca45c0 | 660 | AvREIFY_only(cx->blk_sub.argarray); \ |
b1bc3f34 | 661 | CX_CURPAD_SV(cx->blk_sub, 0) = MUTABLE_SV(cx->blk_sub.argarray); \ |
d8b46c1b | 662 | } \ |
7766f137 | 663 | else { \ |
8e09340b | 664 | CLEAR_ARGARRAY(cx->blk_sub.argarray); \ |
7766f137 | 665 | } \ |
79072805 | 666 | } \ |
1956db7e | 667 | } \ |
b1bc3f34 | 668 | sv = MUTABLE_SV(cx->blk_sub.cv); \ |
25375124 FC |
669 | LEAVE_SCOPE(PL_scopestack[cx->blk_oldscopesp-1]); \ |
670 | if (sv && (CvDEPTH((const CV*)sv) = olddepth)) \ | |
a0714e2c | 671 | sv = NULL; \ |
b0d9ce38 GS |
672 | } STMT_END |
673 | ||
674 | #define LEAVESUB(sv) \ | |
675 | STMT_START { \ | |
d2687c98 | 676 | SvREFCNT_dec(sv); \ |
b0d9ce38 | 677 | } STMT_END |
79072805 LW |
678 | |
679 | #define POPFORMAT(cx) \ | |
25375124 | 680 | STMT_START { \ |
1956db7e | 681 | if (!(cx->blk_u16 & CxPOPSUB_DONE)) { \ |
25375124 FC |
682 | CV * const cv = cx->blk_format.cv; \ |
683 | GV * const dfuot = cx->blk_format.dfoutgv; \ | |
1956db7e | 684 | cx->blk_u16 |= CxPOPSUB_DONE; \ |
25375124 FC |
685 | setdefout(dfuot); \ |
686 | LEAVE_SCOPE(PL_scopestack[cx->blk_oldscopesp-1]); \ | |
687 | if (!--CvDEPTH(cv)) \ | |
2f995715 | 688 | SvREFCNT_dec_NN(cx->blk_format.cv); \ |
25375124 | 689 | SvREFCNT_dec_NN(dfuot); \ |
1956db7e | 690 | } \ |
25375124 | 691 | } STMT_END |
79072805 LW |
692 | |
693 | /* eval context */ | |
694 | struct block_eval { | |
8e663997 NC |
695 | OP * retop; /* op to execute on exit from eval */ |
696 | /* Above here is the same for sub, format and eval. */ | |
0f79a09d | 697 | SV * old_namesv; |
79072805 | 698 | OP * old_eval_root; |
748a9306 | 699 | SV * cur_text; |
2090ab20 | 700 | CV * cv; |
abd70938 | 701 | JMPENV * cur_top_env; /* value of PL_top_env when eval CX created */ |
79072805 LW |
702 | }; |
703 | ||
17347a51 NC |
704 | /* If we ever need more than 512 op types, change the shift from 7. |
705 | blku_gimme is actually also only 2 bits, so could be merged with something. | |
706 | */ | |
707 | ||
708 | #define CxOLD_IN_EVAL(cx) (((cx)->blk_u16) & 0x7F) | |
709 | #define CxOLD_OP_TYPE(cx) (((cx)->blk_u16) >> 7) | |
85a64632 | 710 | |
6b75f042 | 711 | #define PUSHEVAL(cx,n) \ |
0f79a09d | 712 | STMT_START { \ |
17347a51 NC |
713 | assert(!(PL_in_eval & ~0x7F)); \ |
714 | assert(!(PL_op->op_type & ~0x1FF)); \ | |
715 | cx->blk_u16 = (PL_in_eval & 0x7F) | ((U16)PL_op->op_type << 7); \ | |
a0714e2c | 716 | cx->blk_eval.old_namesv = (n ? newSVpv(n,0) : NULL); \ |
a8bba7fa | 717 | cx->blk_eval.old_eval_root = PL_eval_root; \ |
bdc0bf6f | 718 | cx->blk_eval.cur_text = PL_parser ? PL_parser->linestr : NULL; \ |
601f1833 | 719 | cx->blk_eval.cv = NULL; /* set by doeval(), as applicable */ \ |
5f66b61c | 720 | cx->blk_eval.retop = NULL; \ |
abd70938 | 721 | cx->blk_eval.cur_top_env = PL_top_env; \ |
0f79a09d | 722 | } STMT_END |
79072805 LW |
723 | |
724 | #define POPEVAL(cx) \ | |
0f79a09d | 725 | STMT_START { \ |
85a64632 NC |
726 | PL_in_eval = CxOLD_IN_EVAL(cx); \ |
727 | optype = CxOLD_OP_TYPE(cx); \ | |
7766f137 | 728 | PL_eval_root = cx->blk_eval.old_eval_root; \ |
d37427bc | 729 | if (cx->blk_eval.cur_text && SvSCREAM(cx->blk_eval.cur_text)) \ |
2f995715 | 730 | SvREFCNT_dec_NN(cx->blk_eval.cur_text); \ |
0f79a09d GS |
731 | if (cx->blk_eval.old_namesv) \ |
732 | sv_2mortal(cx->blk_eval.old_namesv); \ | |
733 | } STMT_END | |
79072805 LW |
734 | |
735 | /* loop context */ | |
736 | struct block_loop { | |
79072805 | 737 | I32 resetsp; |
022eaa24 | 738 | LOOP * my_op; /* My op, that contains redo, next and last ops. */ |
df530c37 DM |
739 | union { /* different ways of locating the iteration variable */ |
740 | SV **svp; | |
741 | GV *gv; | |
742 | PAD *oldcomppad; /* only used in ITHREADS */ | |
743 | } itervar_u; | |
493b0a3c | 744 | union { |
d01136d6 BS |
745 | struct { /* valid if type is LOOP_FOR or LOOP_PLAIN (but {NULL,0})*/ |
746 | AV * ary; /* use the stack if this is NULL */ | |
747 | IV ix; | |
748 | } ary; | |
749 | struct { /* valid if type is LOOP_LAZYIV */ | |
750 | IV cur; | |
751 | IV end; | |
752 | } lazyiv; | |
753 | struct { /* valid if type if LOOP_LAZYSV */ | |
754 | SV * cur; | |
755 | SV * end; /* maxiumum value (or minimum in reverse) */ | |
756 | } lazysv; | |
757 | } state_u; | |
79072805 LW |
758 | }; |
759 | ||
7766f137 | 760 | #ifdef USE_ITHREADS |
f83b46a0 DM |
761 | # define CxITERVAR_PADSV(c) \ |
762 | &CX_CURPAD_SV( (c)->blk_loop.itervar_u, (c)->blk_loop.my_op->op_targ) | |
763 | #else | |
764 | # define CxITERVAR_PADSV(c) ((c)->blk_loop.itervar_u.svp) | |
765 | #endif | |
766 | ||
767 | #define CxITERVAR(c) \ | |
df530c37 | 768 | ((c)->blk_loop.itervar_u.oldcomppad \ |
e846cb92 | 769 | ? (CxPADLOOP(c) \ |
f83b46a0 | 770 | ? CxITERVAR_PADSV(c) \ |
d39c26a6 FC |
771 | : isGV((c)->blk_loop.itervar_u.gv) \ |
772 | ? &GvSV((c)->blk_loop.itervar_u.gv) \ | |
773 | : (SV **)&(c)->blk_loop.itervar_u.gv) \ | |
7766f137 | 774 | : (SV**)NULL) |
f83b46a0 | 775 | |
b1cf8b36 | 776 | #define CxLABEL(c) (0 + CopLABEL((c)->blk_oldcop)) |
5db1eb8d BF |
777 | #define CxLABEL_len(c,len) (0 + CopLABEL_len((c)->blk_oldcop, len)) |
778 | #define CxLABEL_len_flags(c,len,flags) (0 + CopLABEL_len_flags((c)->blk_oldcop, len, flags)) | |
ae423868 | 779 | #define CxHASARGS(c) (((c)->cx_type & CXp_HASARGS) == CXp_HASARGS) |
1956db7e DM |
780 | #define CxLVAL(c) (0 + ((c)->blk_u16 & 0xff)) |
781 | /* POPSUB has already been performed on this context frame */ | |
782 | #define CxPOPSUB_DONE 0x100 | |
783 | ||
7766f137 | 784 | |
3b719c58 NC |
785 | #define PUSHLOOP_PLAIN(cx, s) \ |
786 | cx->blk_loop.resetsp = s - PL_stack_base; \ | |
787 | cx->blk_loop.my_op = cLOOP; \ | |
d01136d6 BS |
788 | cx->blk_loop.state_u.ary.ary = NULL; \ |
789 | cx->blk_loop.state_u.ary.ix = 0; \ | |
df530c37 | 790 | cx->blk_loop.itervar_u.svp = NULL; |
3b719c58 | 791 | |
df530c37 | 792 | #define PUSHLOOP_FOR(cx, ivar, s) \ |
38a230cb | 793 | cx->blk_loop.resetsp = s - PL_stack_base; \ |
022eaa24 | 794 | cx->blk_loop.my_op = cLOOP; \ |
d01136d6 BS |
795 | cx->blk_loop.state_u.ary.ary = NULL; \ |
796 | cx->blk_loop.state_u.ary.ix = 0; \ | |
df530c37 | 797 | cx->blk_loop.itervar_u.svp = (SV**)(ivar); |
79072805 LW |
798 | |
799 | #define POPLOOP(cx) \ | |
d01136d6 | 800 | if (CxTYPE(cx) == CXt_LOOP_LAZYSV) { \ |
2f995715 FC |
801 | SvREFCNT_dec_NN(cx->blk_loop.state_u.lazysv.cur); \ |
802 | SvREFCNT_dec_NN(cx->blk_loop.state_u.lazysv.end); \ | |
d01136d6 | 803 | } \ |
d01136d6 BS |
804 | if (CxTYPE(cx) == CXt_LOOP_FOR) \ |
805 | SvREFCNT_dec(cx->blk_loop.state_u.ary.ary); | |
79072805 | 806 | |
0d863452 RH |
807 | /* given/when context */ |
808 | struct block_givwhen { | |
809 | OP *leave_op; | |
810 | }; | |
811 | ||
812 | #define PUSHGIVEN(cx) \ | |
813 | cx->blk_givwhen.leave_op = cLOGOP->op_other; | |
814 | ||
815 | #define PUSHWHEN PUSHGIVEN | |
816 | ||
79072805 LW |
817 | /* context common to subroutines, evals and loops */ |
818 | struct block { | |
446d0787 | 819 | U8 blku_type; /* what kind of context this is */ |
2e0df0e8 | 820 | U8 blku_gimme; /* is this block running in list context? */ |
17347a51 | 821 | U16 blku_u16; /* used by block_sub and block_eval (so far) */ |
79072805 LW |
822 | I32 blku_oldsp; /* stack pointer to copy stuff down to */ |
823 | COP * blku_oldcop; /* old curcop pointer */ | |
79072805 LW |
824 | I32 blku_oldmarksp; /* mark stack index */ |
825 | I32 blku_oldscopesp; /* scope stack index */ | |
826 | PMOP * blku_oldpm; /* values of pattern match vars */ | |
79072805 LW |
827 | |
828 | union { | |
829 | struct block_sub blku_sub; | |
f9c764c5 | 830 | struct block_format blku_format; |
79072805 LW |
831 | struct block_eval blku_eval; |
832 | struct block_loop blku_loop; | |
0d863452 | 833 | struct block_givwhen blku_givwhen; |
79072805 LW |
834 | } blk_u; |
835 | }; | |
836 | #define blk_oldsp cx_u.cx_blk.blku_oldsp | |
837 | #define blk_oldcop cx_u.cx_blk.blku_oldcop | |
79072805 LW |
838 | #define blk_oldmarksp cx_u.cx_blk.blku_oldmarksp |
839 | #define blk_oldscopesp cx_u.cx_blk.blku_oldscopesp | |
840 | #define blk_oldpm cx_u.cx_blk.blku_oldpm | |
841 | #define blk_gimme cx_u.cx_blk.blku_gimme | |
446d0787 | 842 | #define blk_u16 cx_u.cx_blk.blku_u16 |
79072805 | 843 | #define blk_sub cx_u.cx_blk.blk_u.blku_sub |
f9c764c5 | 844 | #define blk_format cx_u.cx_blk.blk_u.blku_format |
79072805 LW |
845 | #define blk_eval cx_u.cx_blk.blk_u.blku_eval |
846 | #define blk_loop cx_u.cx_blk.blk_u.blku_loop | |
0d863452 | 847 | #define blk_givwhen cx_u.cx_blk.blk_u.blku_givwhen |
79072805 | 848 | |
1c98cc53 | 849 | #define DEBUG_CX(action) \ |
d9f81b50 | 850 | DEBUG_l( \ |
1c98cc53 DM |
851 | Perl_deb(aTHX_ "CX %ld %s %s (scope %ld,%ld) at %s:%d\n", \ |
852 | (long)cxstack_ix, \ | |
853 | action, \ | |
854 | PL_block_type[CxTYPE(&cxstack[cxstack_ix])], \ | |
855 | (long)PL_scopestack_ix, \ | |
856 | (long)(cxstack[cxstack_ix].blk_oldscopesp), \ | |
d9f81b50 | 857 | __FILE__, __LINE__)); |
1c98cc53 | 858 | |
79072805 | 859 | /* Enter a block. */ |
8990e307 | 860 | #define PUSHBLOCK(cx,t,sp) CXINC, cx = &cxstack[cxstack_ix], \ |
79072805 | 861 | cx->cx_type = t, \ |
3280af22 NIS |
862 | cx->blk_oldsp = sp - PL_stack_base, \ |
863 | cx->blk_oldcop = PL_curcop, \ | |
1aff0e91 | 864 | cx->blk_oldmarksp = PL_markstack_ptr - PL_markstack, \ |
3280af22 | 865 | cx->blk_oldscopesp = PL_scopestack_ix, \ |
3280af22 | 866 | cx->blk_oldpm = PL_curpm, \ |
eb160463 | 867 | cx->blk_gimme = (U8)gimme; \ |
1c98cc53 | 868 | DEBUG_CX("PUSH"); |
79072805 LW |
869 | |
870 | /* Exit a block (RETURN and LAST). */ | |
1c98cc53 DM |
871 | #define POPBLOCK(cx,pm) \ |
872 | DEBUG_CX("POP"); \ | |
873 | cx = &cxstack[cxstack_ix--], \ | |
1aff0e91 | 874 | newsp = PL_stack_base + cx->blk_oldsp, \ |
3280af22 NIS |
875 | PL_curcop = cx->blk_oldcop, \ |
876 | PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp, \ | |
877 | PL_scopestack_ix = cx->blk_oldscopesp, \ | |
3280af22 | 878 | pm = cx->blk_oldpm, \ |
1c98cc53 | 879 | gimme = cx->blk_gimme; |
79072805 LW |
880 | |
881 | /* Continue a block elsewhere (NEXT and REDO). */ | |
1c98cc53 DM |
882 | #define TOPBLOCK(cx) \ |
883 | DEBUG_CX("TOP"); \ | |
884 | cx = &cxstack[cxstack_ix], \ | |
1aff0e91 | 885 | PL_stack_sp = PL_stack_base + cx->blk_oldsp, \ |
3280af22 NIS |
886 | PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp, \ |
887 | PL_scopestack_ix = cx->blk_oldscopesp, \ | |
1c98cc53 | 888 | PL_curpm = cx->blk_oldpm; |
79072805 LW |
889 | |
890 | /* substitution context */ | |
891 | struct subst { | |
446d0787 | 892 | U8 sbu_type; /* what kind of context this is */ |
1ed74d04 | 893 | U8 sbu_rflags; |
446d0787 | 894 | U16 sbu_rxtainted; /* matches struct block */ |
4633a7c4 | 895 | I32 sbu_oldsave; |
3c6ef0a5 FC |
896 | SSize_t sbu_iters; |
897 | SSize_t sbu_maxiters; | |
79072805 LW |
898 | char * sbu_orig; |
899 | SV * sbu_dstr; | |
900 | SV * sbu_targ; | |
901 | char * sbu_s; | |
902 | char * sbu_m; | |
903 | char * sbu_strend; | |
c90c0ff4 | 904 | void * sbu_rxres; |
c07a80fd | 905 | REGEXP * sbu_rx; |
79072805 LW |
906 | }; |
907 | #define sb_iters cx_u.cx_subst.sbu_iters | |
908 | #define sb_maxiters cx_u.cx_subst.sbu_maxiters | |
22e551b9 | 909 | #define sb_rflags cx_u.cx_subst.sbu_rflags |
4633a7c4 | 910 | #define sb_oldsave cx_u.cx_subst.sbu_oldsave |
71be2cbc | 911 | #define sb_rxtainted cx_u.cx_subst.sbu_rxtainted |
79072805 LW |
912 | #define sb_orig cx_u.cx_subst.sbu_orig |
913 | #define sb_dstr cx_u.cx_subst.sbu_dstr | |
914 | #define sb_targ cx_u.cx_subst.sbu_targ | |
915 | #define sb_s cx_u.cx_subst.sbu_s | |
916 | #define sb_m cx_u.cx_subst.sbu_m | |
917 | #define sb_strend cx_u.cx_subst.sbu_strend | |
c90c0ff4 | 918 | #define sb_rxres cx_u.cx_subst.sbu_rxres |
c07a80fd | 919 | #define sb_rx cx_u.cx_subst.sbu_rx |
79072805 | 920 | |
9c105995 NC |
921 | #ifdef PERL_CORE |
922 | # define PUSHSUBST(cx) CXINC, cx = &cxstack[cxstack_ix], \ | |
79072805 LW |
923 | cx->sb_iters = iters, \ |
924 | cx->sb_maxiters = maxiters, \ | |
22e551b9 | 925 | cx->sb_rflags = r_flags, \ |
4633a7c4 | 926 | cx->sb_oldsave = oldsave, \ |
71be2cbc | 927 | cx->sb_rxtainted = rxtainted, \ |
79072805 LW |
928 | cx->sb_orig = orig, \ |
929 | cx->sb_dstr = dstr, \ | |
930 | cx->sb_targ = targ, \ | |
931 | cx->sb_s = s, \ | |
932 | cx->sb_m = m, \ | |
933 | cx->sb_strend = strend, \ | |
4608196e | 934 | cx->sb_rxres = NULL, \ |
c07a80fd | 935 | cx->sb_rx = rx, \ |
1ed74d04 | 936 | cx->cx_type = CXt_SUBST | (once ? CXp_ONCE : 0); \ |
e22ae1e2 | 937 | rxres_save(&cx->sb_rxres, rx); \ |
b69b0499 | 938 | (void)ReREFCNT_inc(rx) |
79072805 | 939 | |
9c105995 | 940 | # define POPSUBST(cx) cx = &cxstack[cxstack_ix--]; \ |
e22ae1e2 DM |
941 | rxres_free(&cx->sb_rxres); \ |
942 | ReREFCNT_dec(cx->sb_rx) | |
9c105995 NC |
943 | #endif |
944 | ||
945 | #define CxONCE(cx) ((cx)->cx_type & CXp_ONCE) | |
79072805 LW |
946 | |
947 | struct context { | |
79072805 LW |
948 | union { |
949 | struct block cx_blk; | |
950 | struct subst cx_subst; | |
951 | } cx_u; | |
952 | }; | |
2e0df0e8 | 953 | #define cx_type cx_u.cx_subst.sbu_type |
6b35e009 | 954 | |
76753e7f NC |
955 | /* If you re-order these, there is also an array of uppercase names in perl.h |
956 | and a static array of context names in pp_ctl.c */ | |
3701055e | 957 | #define CXTYPEMASK 0xf |
79072805 | 958 | #define CXt_NULL 0 |
76753e7f NC |
959 | #define CXt_WHEN 1 |
960 | #define CXt_BLOCK 2 | |
961 | /* When micro-optimising :-) keep GIVEN next to the LOOPs, as these 5 share a | |
962 | jump table in pp_ctl.c | |
963 | The first 4 don't have a 'case' in at least one switch statement in pp_ctl.c | |
964 | */ | |
965 | #define CXt_GIVEN 3 | |
c6fdafd0 | 966 | /* This is first so that CXt_LOOP_FOR|CXt_LOOP_LAZYIV is CXt_LOOP_LAZYIV */ |
76753e7f NC |
967 | #define CXt_LOOP_FOR 4 |
968 | #define CXt_LOOP_PLAIN 5 | |
969 | #define CXt_LOOP_LAZYSV 6 | |
970 | #define CXt_LOOP_LAZYIV 7 | |
971 | #define CXt_SUB 8 | |
972 | #define CXt_FORMAT 9 | |
973 | #define CXt_EVAL 10 | |
974 | #define CXt_SUBST 11 | |
975 | /* SUBST doesn't feature in all switch statements. */ | |
79072805 | 976 | |
3701055e NC |
977 | /* private flags for CXt_SUB and CXt_NULL |
978 | However, this is checked in many places which do not check the type, so | |
979 | this bit needs to be kept clear for most everything else. For reasons I | |
980 | haven't investigated, it can coexist with CXp_FOR_DEF */ | |
1f27d788 NC |
981 | #define CXp_MULTICALL 0x10 /* part of a multicall (so don't |
982 | tear down context on exit). */ | |
9850bf21 | 983 | |
ae423868 | 984 | /* private flags for CXt_SUB and CXt_FORMAT */ |
1f27d788 | 985 | #define CXp_HASARGS 0x20 |
b0065247 DM |
986 | #define CXp_SUB_RE 0x40 /* code called within regex, i.e. (?{}) */ |
987 | #define CXp_SUB_RE_FAKE 0x80 /* fake sub CX for (?{}) in current scope */ | |
ae423868 | 988 | |
6b35e009 | 989 | /* private flags for CXt_EVAL */ |
1f27d788 NC |
990 | #define CXp_REAL 0x20 /* truly eval'', not a lookalike */ |
991 | #define CXp_TRYBLOCK 0x40 /* eval{}, not eval'' or similar */ | |
6b35e009 | 992 | |
7766f137 | 993 | /* private flags for CXt_LOOP */ |
1f27d788 | 994 | #define CXp_FOR_DEF 0x10 /* foreach using $_ */ |
d39c26a6 | 995 | #define CXp_FOR_LVREF 0x20 /* foreach using \$var */ |
56b98d0f | 996 | #define CxPADLOOP(c) ((c)->blk_loop.my_op->op_targ) |
e846cb92 | 997 | |
1ed74d04 NC |
998 | /* private flags for CXt_SUBST */ |
999 | #define CXp_ONCE 0x10 /* What was sbu_once in struct subst */ | |
7766f137 | 1000 | |
6b35e009 | 1001 | #define CxTYPE(c) ((c)->cx_type & CXTYPEMASK) |
76753e7f | 1002 | #define CxTYPE_is_LOOP(c) (((c)->cx_type & 0xC) == 0x4) |
9850bf21 RH |
1003 | #define CxMULTICALL(c) (((c)->cx_type & CXp_MULTICALL) \ |
1004 | == CXp_MULTICALL) | |
0588a150 | 1005 | #define CxREALEVAL(c) (((c)->cx_type & (CXTYPEMASK|CXp_REAL)) \ |
7766f137 | 1006 | == (CXt_EVAL|CXp_REAL)) |
0588a150 | 1007 | #define CxTRYBLOCK(c) (((c)->cx_type & (CXTYPEMASK|CXp_TRYBLOCK)) \ |
1d76a5c3 | 1008 | == (CXt_EVAL|CXp_TRYBLOCK)) |
3b719c58 NC |
1009 | #define CxFOREACH(c) (CxTYPE_is_LOOP(c) && CxTYPE(c) != CXt_LOOP_PLAIN) |
1010 | #define CxFOREACHDEF(c) ((CxTYPE_is_LOOP(c) && CxTYPE(c) != CXt_LOOP_PLAIN) \ | |
1011 | && ((c)->cx_type & CXp_FOR_DEF)) | |
6b35e009 | 1012 | |
109bf713 | 1013 | #define CXINC (cxstack_ix < cxstack_max ? ++cxstack_ix : (cxstack_ix = cxinc())) |
79072805 | 1014 | |
ccfc67b7 JH |
1015 | /* |
1016 | =head1 "Gimme" Values | |
1017 | */ | |
954c1994 GS |
1018 | |
1019 | /* | |
1020 | =for apidoc AmU||G_SCALAR | |
1021 | Used to indicate scalar context. See C<GIMME_V>, C<GIMME>, and | |
1022 | L<perlcall>. | |
1023 | ||
1024 | =for apidoc AmU||G_ARRAY | |
91e74348 | 1025 | Used to indicate list context. See C<GIMME_V>, C<GIMME> and |
954c1994 GS |
1026 | L<perlcall>. |
1027 | ||
1028 | =for apidoc AmU||G_VOID | |
1029 | Used to indicate void context. See C<GIMME_V> and L<perlcall>. | |
1030 | ||
1031 | =for apidoc AmU||G_DISCARD | |
1032 | Indicates that arguments returned from a callback should be discarded. See | |
1033 | L<perlcall>. | |
1034 | ||
1035 | =for apidoc AmU||G_EVAL | |
1036 | ||
1037 | Used to force a Perl C<eval> wrapper around a callback. See | |
1038 | L<perlcall>. | |
1039 | ||
1040 | =for apidoc AmU||G_NOARGS | |
1041 | ||
1042 | Indicates that no arguments are being sent to a callback. See | |
1043 | L<perlcall>. | |
1044 | ||
1045 | =cut | |
1046 | */ | |
1047 | ||
2f8edad0 NC |
1048 | #define G_SCALAR 2 |
1049 | #define G_ARRAY 3 | |
1050 | #define G_VOID 1 | |
1051 | #define G_WANT 3 | |
79072805 | 1052 | |
864dbfa3 | 1053 | /* extra flags for Perl_call_* routines */ |
2f8edad0 | 1054 | #define G_DISCARD 4 /* Call FREETMPS. |
b54b4831 NC |
1055 | Don't change this without consulting the |
1056 | hash actions codes defined in hv.h */ | |
2f8edad0 NC |
1057 | #define G_EVAL 8 /* Assume eval {} around subroutine call. */ |
1058 | #define G_NOARGS 16 /* Don't construct a @_ array. */ | |
7ce09284 | 1059 | #define G_KEEPERR 32 /* Warn for errors, don't overwrite $@ */ |
2f8edad0 NC |
1060 | #define G_NODEBUG 64 /* Disable debugging at toplevel. */ |
1061 | #define G_METHOD 128 /* Calling method. */ | |
c40f1585 | 1062 | #define G_FAKINGEVAL 256 /* Faking an eval context for call_sv or |
edb2152a | 1063 | fold_constants. */ |
67549bd2 NC |
1064 | #define G_UNDEF_FILL 512 /* Fill the stack with &PL_sv_undef |
1065 | A special case for UNSHIFT in | |
1066 | Perl_magic_methcall(). */ | |
d1d7a15d NC |
1067 | #define G_WRITING_TO_STDERR 1024 /* Perl_write_to_stderr() is calling |
1068 | Perl_magic_methcall(). */ | |
a1941760 | 1069 | #define G_RE_REPARSING 0x800 /* compiling a run-time /(?{..})/ */ |
c106c2be | 1070 | #define G_METHOD_NAMED 4096 /* calling named method, eg without :: or ' */ |
e336de0d | 1071 | |
faef0170 HS |
1072 | /* flag bits for PL_in_eval */ |
1073 | #define EVAL_NULL 0 /* not in an eval */ | |
1074 | #define EVAL_INEVAL 1 /* some enclosing scope is an eval */ | |
1075 | #define EVAL_WARNONLY 2 /* used by yywarn() when calling yyerror() */ | |
864dbfa3 | 1076 | #define EVAL_KEEPERR 4 /* set by Perl_call_sv if G_KEEPERR */ |
6dc8a9e4 | 1077 | #define EVAL_INREQUIRE 8 /* The code is being required. */ |
a1941760 | 1078 | #define EVAL_RE_REPARSING 0x10 /* eval_sv() called with G_RE_REPARSING */ |
faef0170 | 1079 | |
e336de0d GS |
1080 | /* Support for switching (stack and block) contexts. |
1081 | * This ensures magic doesn't invalidate local stack and cx pointers. | |
1082 | */ | |
1083 | ||
e788e7d3 GS |
1084 | #define PERLSI_UNKNOWN -1 |
1085 | #define PERLSI_UNDEF 0 | |
1086 | #define PERLSI_MAIN 1 | |
1087 | #define PERLSI_MAGIC 2 | |
1088 | #define PERLSI_SORT 3 | |
1089 | #define PERLSI_SIGNAL 4 | |
1090 | #define PERLSI_OVERLOAD 5 | |
1091 | #define PERLSI_DESTROY 6 | |
1092 | #define PERLSI_WARNHOOK 7 | |
1093 | #define PERLSI_DIEHOOK 8 | |
1094 | #define PERLSI_REQUIRE 9 | |
e1a10f35 | 1095 | #define PERLSI_MULTICALL 10 |
e336de0d GS |
1096 | |
1097 | struct stackinfo { | |
1098 | AV * si_stack; /* stack for current runlevel */ | |
1099 | PERL_CONTEXT * si_cxstack; /* context stack for runlevel */ | |
9bd87817 NC |
1100 | struct stackinfo * si_prev; |
1101 | struct stackinfo * si_next; | |
e336de0d GS |
1102 | I32 si_cxix; /* current context index */ |
1103 | I32 si_cxmax; /* maximum allocated index */ | |
1104 | I32 si_type; /* type of runlevel */ | |
ce2f7c3b | 1105 | I32 si_markoff; /* offset where markstack begins for us. |
e336de0d GS |
1106 | * currently used only with DEBUGGING, |
1107 | * but not #ifdef-ed for bincompat */ | |
1108 | }; | |
1109 | ||
1110 | typedef struct stackinfo PERL_SI; | |
1111 | ||
3280af22 NIS |
1112 | #define cxstack (PL_curstackinfo->si_cxstack) |
1113 | #define cxstack_ix (PL_curstackinfo->si_cxix) | |
1114 | #define cxstack_max (PL_curstackinfo->si_cxmax) | |
e336de0d GS |
1115 | |
1116 | #ifdef DEBUGGING | |
ce2f7c3b GS |
1117 | # define SET_MARK_OFFSET \ |
1118 | PL_curstackinfo->si_markoff = PL_markstack_ptr - PL_markstack | |
e336de0d | 1119 | #else |
ce2f7c3b | 1120 | # define SET_MARK_OFFSET NOOP |
e336de0d GS |
1121 | #endif |
1122 | ||
d3acc0f7 | 1123 | #define PUSHSTACKi(type) \ |
e336de0d | 1124 | STMT_START { \ |
3280af22 | 1125 | PERL_SI *next = PL_curstackinfo->si_next; \ |
1c98cc53 DM |
1126 | DEBUG_l({ \ |
1127 | int i = 0; PERL_SI *p = PL_curstackinfo; \ | |
1128 | while (p) { i++; p = p->si_prev; } \ | |
1129 | Perl_deb(aTHX_ "push STACKINFO %d at %s:%d\n", \ | |
1130 | i, __FILE__, __LINE__);}) \ | |
e336de0d GS |
1131 | if (!next) { \ |
1132 | next = new_stackinfo(32, 2048/sizeof(PERL_CONTEXT) - 1); \ | |
3280af22 NIS |
1133 | next->si_prev = PL_curstackinfo; \ |
1134 | PL_curstackinfo->si_next = next; \ | |
e336de0d GS |
1135 | } \ |
1136 | next->si_type = type; \ | |
1137 | next->si_cxix = -1; \ | |
1138 | AvFILLp(next->si_stack) = 0; \ | |
3280af22 NIS |
1139 | SWITCHSTACK(PL_curstack,next->si_stack); \ |
1140 | PL_curstackinfo = next; \ | |
ce2f7c3b | 1141 | SET_MARK_OFFSET; \ |
e336de0d GS |
1142 | } STMT_END |
1143 | ||
e788e7d3 | 1144 | #define PUSHSTACK PUSHSTACKi(PERLSI_UNKNOWN) |
d3acc0f7 | 1145 | |
3095d977 GS |
1146 | /* POPSTACK works with PL_stack_sp, so it may need to be bracketed by |
1147 | * PUTBACK/SPAGAIN to flush/refresh any local SP that may be active */ | |
d3acc0f7 | 1148 | #define POPSTACK \ |
e336de0d | 1149 | STMT_START { \ |
39644a26 | 1150 | dSP; \ |
c4420975 | 1151 | PERL_SI * const prev = PL_curstackinfo->si_prev; \ |
1c98cc53 DM |
1152 | DEBUG_l({ \ |
1153 | int i = -1; PERL_SI *p = PL_curstackinfo; \ | |
1154 | while (p) { i++; p = p->si_prev; } \ | |
1155 | Perl_deb(aTHX_ "pop STACKINFO %d at %s:%d\n", \ | |
1156 | i, __FILE__, __LINE__);}) \ | |
e336de0d | 1157 | if (!prev) { \ |
3d04513d | 1158 | Perl_croak_popstack(); \ |
e336de0d | 1159 | } \ |
3280af22 | 1160 | SWITCHSTACK(PL_curstack,prev->si_stack); \ |
e336de0d | 1161 | /* don't free prev here, free them all at the END{} */ \ |
3280af22 | 1162 | PL_curstackinfo = prev; \ |
e336de0d GS |
1163 | } STMT_END |
1164 | ||
1165 | #define POPSTACK_TO(s) \ | |
1166 | STMT_START { \ | |
3280af22 | 1167 | while (PL_curstack != s) { \ |
bac4b2ad | 1168 | dounwind(-1); \ |
d3acc0f7 | 1169 | POPSTACK; \ |
bac4b2ad | 1170 | } \ |
e336de0d | 1171 | } STMT_END |
923e4eb5 JH |
1172 | |
1173 | #define IN_PERL_COMPILETIME (PL_curcop == &PL_compiling) | |
1174 | #define IN_PERL_RUNTIME (PL_curcop != &PL_compiling) | |
1175 | ||
9850bf21 RH |
1176 | /* |
1177 | =head1 Multicall Functions | |
1178 | ||
1179 | =for apidoc Ams||dMULTICALL | |
72d33970 | 1180 | Declare local variables for a multicall. See L<perlcall/LIGHTWEIGHT CALLBACKS>. |
9850bf21 RH |
1181 | |
1182 | =for apidoc Ams||PUSH_MULTICALL | |
1183 | Opening bracket for a lightweight callback. | |
0eda4409 | 1184 | See L<perlcall/LIGHTWEIGHT CALLBACKS>. |
9850bf21 RH |
1185 | |
1186 | =for apidoc Ams||MULTICALL | |
72d33970 | 1187 | Make a lightweight callback. See L<perlcall/LIGHTWEIGHT CALLBACKS>. |
9850bf21 RH |
1188 | |
1189 | =for apidoc Ams||POP_MULTICALL | |
1190 | Closing bracket for a lightweight callback. | |
0eda4409 | 1191 | See L<perlcall/LIGHTWEIGHT CALLBACKS>. |
9850bf21 RH |
1192 | |
1193 | =cut | |
1194 | */ | |
1195 | ||
1196 | #define dMULTICALL \ | |
1197 | SV **newsp; /* set by POPBLOCK */ \ | |
1198 | PERL_CONTEXT *cx; \ | |
82f35e8b | 1199 | CV *multicall_cv; \ |
9850bf21 RH |
1200 | OP *multicall_cop; \ |
1201 | bool multicall_oldcatch; \ | |
1202 | U8 hasargs = 0 /* used by PUSHSUB */ | |
1203 | ||
82f35e8b | 1204 | #define PUSH_MULTICALL(the_cv) \ |
b0065247 | 1205 | PUSH_MULTICALL_FLAGS(the_cv, 0) |
81ed78b2 | 1206 | |
b0065247 DM |
1207 | /* Like PUSH_MULTICALL, but allows you to specify extra flags |
1208 | * for the CX stack entry (this isn't part of the public API) */ | |
81ed78b2 | 1209 | |
b0065247 | 1210 | #define PUSH_MULTICALL_FLAGS(the_cv, flags) \ |
9850bf21 | 1211 | STMT_START { \ |
0bcc34c2 AL |
1212 | CV * const _nOnclAshIngNamE_ = the_cv; \ |
1213 | CV * const cv = _nOnclAshIngNamE_; \ | |
b70d5558 | 1214 | PADLIST * const padlist = CvPADLIST(cv); \ |
9850bf21 RH |
1215 | ENTER; \ |
1216 | multicall_oldcatch = CATCH_GET; \ | |
1217 | SAVETMPS; SAVEVPTR(PL_op); \ | |
1218 | CATCH_SET(TRUE); \ | |
e1a10f35 | 1219 | PUSHSTACKi(PERLSI_MULTICALL); \ |
b0065247 | 1220 | PUSHBLOCK(cx, (CXt_SUB|CXp_MULTICALL|flags), PL_stack_sp); \ |
9850bf21 | 1221 | PUSHSUB(cx); \ |
b0065247 DM |
1222 | if (!(flags & CXp_SUB_RE_FAKE)) \ |
1223 | CvDEPTH(cv)++; \ | |
81ed78b2 | 1224 | if (CvDEPTH(cv) >= 2) { \ |
9850bf21 RH |
1225 | PERL_STACK_OVERFLOW_CHECK(); \ |
1226 | Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \ | |
1227 | } \ | |
1228 | SAVECOMPPAD(); \ | |
1229 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \ | |
82f35e8b | 1230 | multicall_cv = cv; \ |
9850bf21 RH |
1231 | multicall_cop = CvSTART(cv); \ |
1232 | } STMT_END | |
1233 | ||
1234 | #define MULTICALL \ | |
1235 | STMT_START { \ | |
1236 | PL_op = multicall_cop; \ | |
1237 | CALLRUNOPS(aTHX); \ | |
1238 | } STMT_END | |
1239 | ||
1240 | #define POP_MULTICALL \ | |
1241 | STMT_START { \ | |
3d26b81e DM |
1242 | cx = &cxstack[cxstack_ix]; \ |
1243 | if (! ((CvDEPTH(multicall_cv) = cx->blk_sub.olddepth)) ) { \ | |
81ed78b2 DM |
1244 | LEAVESUB(multicall_cv); \ |
1245 | } \ | |
9850bf21 | 1246 | POPBLOCK(cx,PL_curpm); \ |
1bbbfc50 | 1247 | POPSTACK; \ |
9850bf21 RH |
1248 | CATCH_SET(multicall_oldcatch); \ |
1249 | LEAVE; \ | |
1bbbfc50 | 1250 | SPAGAIN; \ |
9850bf21 | 1251 | } STMT_END |
b3ca2e83 | 1252 | |
81ed78b2 DM |
1253 | /* Change the CV of an already-pushed MULTICALL CxSUB block. |
1254 | * (this isn't part of the public API) */ | |
1255 | ||
b0065247 | 1256 | #define CHANGE_MULTICALL_FLAGS(the_cv, flags) \ |
81ed78b2 DM |
1257 | STMT_START { \ |
1258 | CV * const _nOnclAshIngNamE_ = the_cv; \ | |
1259 | CV * const cv = _nOnclAshIngNamE_; \ | |
b70d5558 | 1260 | PADLIST * const padlist = CvPADLIST(cv); \ |
81ed78b2 DM |
1261 | cx = &cxstack[cxstack_ix]; \ |
1262 | assert(cx->cx_type & CXp_MULTICALL); \ | |
1263 | if (! ((CvDEPTH(multicall_cv) = cx->blk_sub.olddepth)) ) { \ | |
1264 | LEAVESUB(multicall_cv); \ | |
1265 | } \ | |
b0065247 | 1266 | cx->cx_type = (CXt_SUB|CXp_MULTICALL|flags); \ |
81ed78b2 | 1267 | PUSHSUB(cx); \ |
b0065247 DM |
1268 | if (!(flags & CXp_SUB_RE_FAKE)) \ |
1269 | CvDEPTH(cv)++; \ | |
81ed78b2 DM |
1270 | if (CvDEPTH(cv) >= 2) { \ |
1271 | PERL_STACK_OVERFLOW_CHECK(); \ | |
1272 | Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \ | |
1273 | } \ | |
1274 | SAVECOMPPAD(); \ | |
1275 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \ | |
1276 | multicall_cv = cv; \ | |
1277 | multicall_cop = CvSTART(cv); \ | |
1278 | } STMT_END | |
b3ca2e83 | 1279 | /* |
14d04a33 | 1280 | * ex: set ts=8 sts=4 sw=4 et: |
b3ca2e83 | 1281 | */ |