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 RU |
9 | * Control ops (cops) are one of the two ops OP_NEXTSTATE and OP_DBSTATE, |
10 | * that (loosely speaking) are separate statements. | |
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; | |
34 | Sigjmp_buf je_buf; /* only for use if !je_throw */ | |
35 | int je_ret; /* last exception thrown */ | |
36 | bool je_mustcatch; /* need to call longjmp()? */ | |
37 | }; | |
38 | ||
39 | typedef struct jmpenv JMPENV; | |
40 | ||
41 | #ifdef OP_IN_REGISTER | |
42 | #define OP_REG_TO_MEM PL_opsave = op | |
43 | #define OP_MEM_TO_REG op = PL_opsave | |
44 | #else | |
45 | #define OP_REG_TO_MEM NOOP | |
46 | #define OP_MEM_TO_REG NOOP | |
47 | #endif | |
48 | ||
49 | /* | |
50 | * How to build the first jmpenv. | |
51 | * | |
52 | * top_env needs to be non-zero. It points to an area | |
53 | * in which longjmp() stuff is stored, as C callstack | |
54 | * info there at least is thread specific this has to | |
55 | * be per-thread. Otherwise a 'die' in a thread gives | |
56 | * that thread the C stack of last thread to do an eval {}! | |
57 | */ | |
58 | ||
59 | #define JMPENV_BOOTSTRAP \ | |
60 | STMT_START { \ | |
61 | Zero(&PL_start_env, 1, JMPENV); \ | |
62 | PL_start_env.je_ret = -1; \ | |
63 | PL_start_env.je_mustcatch = TRUE; \ | |
64 | PL_top_env = &PL_start_env; \ | |
65 | } STMT_END | |
66 | ||
67 | /* | |
68 | * PERL_FLEXIBLE_EXCEPTIONS | |
69 | * | |
70 | * All the flexible exceptions code has been removed. | |
71 | * See the following threads for details: | |
72 | * | |
73 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2004-07/msg00378.html | |
74 | * | |
75 | * Joshua's original patches (which weren't applied) and discussion: | |
76 | * | |
77 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01396.html | |
78 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01489.html | |
79 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01491.html | |
80 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg01608.html | |
81 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg02144.html | |
82 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1998-02/msg02998.html | |
83 | * | |
84 | * Chip's reworked patch and discussion: | |
85 | * | |
86 | * http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/1999-03/msg00520.html | |
87 | * | |
88 | * The flaw in these patches (which went unnoticed at the time) was | |
89 | * that they moved some code that could potentially die() out of the | |
90 | * region protected by the setjmp()s. This caused exceptions within | |
91 | * END blocks and such to not be handled by the correct setjmp(). | |
92 | * | |
93 | * The original patches that introduces flexible exceptions were: | |
94 | * | |
ff7e9008 MS |
95 | * http://perl5.git.perl.org/perl.git/commit/312caa8e97f1c7ee342a9895c2f0e749625b4929 |
96 | * http://perl5.git.perl.org/perl.git/commit/14dd3ad8c9bf82cf09798a22cc89a9862dfd6d1a | |
97 | * | |
0d2925a6 DM |
98 | */ |
99 | ||
100 | #define dJMPENV JMPENV cur_env | |
101 | ||
102 | #define JMPENV_PUSH(v) \ | |
103 | STMT_START { \ | |
1c98cc53 DM |
104 | DEBUG_l({ \ |
105 | int i = 0; JMPENV *p = PL_top_env; \ | |
106 | while (p) { i++; p = p->je_prev; } \ | |
91e35ba1 DM |
107 | Perl_deb(aTHX_ "JUMPENV_PUSH level=%d at %s:%d\n", \ |
108 | i, __FILE__, __LINE__);}) \ | |
0d2925a6 DM |
109 | cur_env.je_prev = PL_top_env; \ |
110 | OP_REG_TO_MEM; \ | |
111 | cur_env.je_ret = PerlProc_setjmp(cur_env.je_buf, SCOPE_SAVES_SIGNAL_MASK); \ | |
112 | OP_MEM_TO_REG; \ | |
113 | PL_top_env = &cur_env; \ | |
114 | cur_env.je_mustcatch = FALSE; \ | |
115 | (v) = cur_env.je_ret; \ | |
116 | } STMT_END | |
117 | ||
118 | #define JMPENV_POP \ | |
119 | STMT_START { \ | |
1c98cc53 DM |
120 | DEBUG_l({ \ |
121 | int i = -1; JMPENV *p = PL_top_env; \ | |
122 | while (p) { i++; p = p->je_prev; } \ | |
91e35ba1 DM |
123 | Perl_deb(aTHX_ "JUMPENV_POP level=%d at %s:%d\n", \ |
124 | i, __FILE__, __LINE__);}) \ | |
d3ab86be | 125 | assert(PL_top_env == &cur_env); \ |
0d2925a6 DM |
126 | PL_top_env = cur_env.je_prev; \ |
127 | } STMT_END | |
128 | ||
129 | #define JMPENV_JUMP(v) \ | |
130 | STMT_START { \ | |
1c98cc53 DM |
131 | DEBUG_l({ \ |
132 | int i = -1; JMPENV *p = PL_top_env; \ | |
133 | while (p) { i++; p = p->je_prev; } \ | |
91e35ba1 DM |
134 | Perl_deb(aTHX_ "JUMPENV_JUMP(%d) level=%d at %s:%d\n", \ |
135 | (int)v, i, __FILE__, __LINE__);}) \ | |
0d2925a6 DM |
136 | OP_REG_TO_MEM; \ |
137 | if (PL_top_env->je_prev) \ | |
138 | PerlProc_longjmp(PL_top_env->je_buf, (v)); \ | |
139 | if ((v) == 2) \ | |
37038d91 | 140 | PerlProc_exit(STATUS_EXIT); \ |
0d2925a6 DM |
141 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); \ |
142 | PerlProc_exit(1); \ | |
143 | } STMT_END | |
144 | ||
145 | #define CATCH_GET (PL_top_env->je_mustcatch) | |
1c98cc53 DM |
146 | #define CATCH_SET(v) \ |
147 | STMT_START { \ | |
148 | DEBUG_l( \ | |
149 | Perl_deb(aTHX_ \ | |
150 | "JUMPLEVEL set catch %d => %d (for %p) at %s:%d\n", \ | |
151 | PL_top_env->je_mustcatch, v, (void*)PL_top_env, \ | |
152 | __FILE__, __LINE__);) \ | |
153 | PL_top_env->je_mustcatch = (v); \ | |
154 | } STMT_END | |
0d2925a6 | 155 | |
20439bc7 Z |
156 | /* |
157 | =head1 COP Hint Hashes | |
158 | */ | |
159 | ||
160 | typedef struct refcounted_he COPHH; | |
161 | ||
162 | #define COPHH_KEY_UTF8 REFCOUNTED_HE_KEY_UTF8 | |
163 | ||
164 | /* | |
ffd08bbf | 165 | =for apidoc Amx|SV *|cophh_fetch_pvn|const COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|U32 flags |
20439bc7 Z |
166 | |
167 | Look up the entry in the cop hints hash I<cophh> with the key specified by | |
168 | I<keypv> and I<keylen>. If I<flags> has the C<COPHH_KEY_UTF8> bit set, | |
169 | the key octets are interpreted as UTF-8, otherwise they are interpreted | |
170 | as Latin-1. I<hash> is a precomputed hash of the key string, or zero if | |
171 | it has not been precomputed. Returns a mortal scalar copy of the value | |
172 | associated with the key, or C<&PL_sv_placeholder> if there is no value | |
173 | associated with the key. | |
174 | ||
175 | =cut | |
176 | */ | |
177 | ||
178 | #define cophh_fetch_pvn(cophh, keypv, keylen, hash, flags) \ | |
179 | Perl_refcounted_he_fetch_pvn(aTHX_ cophh, keypv, keylen, hash, flags) | |
180 | ||
181 | /* | |
ffd08bbf | 182 | =for apidoc Amx|SV *|cophh_fetch_pvs|const COPHH *cophh|const char *key|U32 flags |
20439bc7 Z |
183 | |
184 | Like L</cophh_fetch_pvn>, but takes a literal string instead of a | |
185 | string/length pair, and no precomputed hash. | |
186 | ||
187 | =cut | |
188 | */ | |
189 | ||
190 | #define cophh_fetch_pvs(cophh, key, flags) \ | |
191 | Perl_refcounted_he_fetch_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, flags) | |
192 | ||
193 | /* | |
ffd08bbf | 194 | =for apidoc Amx|SV *|cophh_fetch_pv|const COPHH *cophh|const char *key|U32 hash|U32 flags |
20439bc7 Z |
195 | |
196 | Like L</cophh_fetch_pvn>, but takes a nul-terminated string instead of | |
197 | a string/length pair. | |
198 | ||
199 | =cut | |
200 | */ | |
201 | ||
202 | #define cophh_fetch_pv(cophh, key, hash, flags) \ | |
203 | Perl_refcounted_he_fetch_pv(aTHX_ cophh, key, hash, flags) | |
204 | ||
205 | /* | |
ffd08bbf | 206 | =for apidoc Amx|SV *|cophh_fetch_sv|const COPHH *cophh|SV *key|U32 hash|U32 flags |
20439bc7 Z |
207 | |
208 | Like L</cophh_fetch_pvn>, but takes a Perl scalar instead of a | |
209 | string/length pair. | |
210 | ||
211 | =cut | |
212 | */ | |
213 | ||
214 | #define cophh_fetch_sv(cophh, key, hash, flags) \ | |
215 | Perl_refcounted_he_fetch_sv(aTHX_ cophh, key, hash, flags) | |
216 | ||
217 | /* | |
ffd08bbf | 218 | =for apidoc Amx|HV *|cophh_2hv|const COPHH *cophh|U32 flags |
20439bc7 Z |
219 | |
220 | Generates and returns a standard Perl hash representing the full set of | |
221 | key/value pairs in the cop hints hash I<cophh>. I<flags> is currently | |
222 | unused and must be zero. | |
223 | ||
224 | =cut | |
225 | */ | |
226 | ||
227 | #define cophh_2hv(cophh, flags) \ | |
228 | Perl_refcounted_he_chain_2hv(aTHX_ cophh, flags) | |
229 | ||
230 | /* | |
ffd08bbf | 231 | =for apidoc Amx|COPHH *|cophh_copy|COPHH *cophh |
20439bc7 Z |
232 | |
233 | Make and return a complete copy of the cop hints hash I<cophh>. | |
234 | ||
235 | =cut | |
236 | */ | |
237 | ||
238 | #define cophh_copy(cophh) Perl_refcounted_he_inc(aTHX_ cophh) | |
239 | ||
240 | /* | |
ffd08bbf | 241 | =for apidoc Amx|void|cophh_free|COPHH *cophh |
20439bc7 Z |
242 | |
243 | Discard the cop hints hash I<cophh>, freeing all resources associated | |
244 | with it. | |
245 | ||
246 | =cut | |
247 | */ | |
248 | ||
249 | #define cophh_free(cophh) Perl_refcounted_he_free(aTHX_ cophh) | |
250 | ||
251 | /* | |
ffd08bbf | 252 | =for apidoc Amx|COPHH *|cophh_new_empty |
20439bc7 Z |
253 | |
254 | Generate and return a fresh cop hints hash containing no entries. | |
255 | ||
256 | =cut | |
257 | */ | |
258 | ||
259 | #define cophh_new_empty() ((COPHH *)NULL) | |
260 | ||
261 | /* | |
ffd08bbf | 262 | =for apidoc Amx|COPHH *|cophh_store_pvn|COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|SV *value|U32 flags |
20439bc7 Z |
263 | |
264 | Stores a value, associated with a key, in the cop hints hash I<cophh>, | |
265 | and returns the modified hash. The returned hash pointer is in general | |
266 | not the same as the hash pointer that was passed in. The input hash is | |
267 | consumed by the function, and the pointer to it must not be subsequently | |
268 | used. Use L</cophh_copy> if you need both hashes. | |
269 | ||
270 | The key is specified by I<keypv> and I<keylen>. If I<flags> has the | |
271 | C<COPHH_KEY_UTF8> bit set, the key octets are interpreted as UTF-8, | |
272 | otherwise they are interpreted as Latin-1. I<hash> is a precomputed | |
273 | hash of the key string, or zero if it has not been precomputed. | |
274 | ||
275 | I<value> is the scalar value to store for this key. I<value> is copied | |
276 | by this function, which thus does not take ownership of any reference | |
277 | to it, and later changes to the scalar will not be reflected in the | |
278 | value visible in the cop hints hash. Complex types of scalar will not | |
279 | be stored with referential integrity, but will be coerced to strings. | |
280 | ||
281 | =cut | |
282 | */ | |
283 | ||
284 | #define cophh_store_pvn(cophh, keypv, keylen, hash, value, flags) \ | |
285 | Perl_refcounted_he_new_pvn(aTHX_ cophh, keypv, keylen, hash, value, flags) | |
286 | ||
287 | /* | |
ffd08bbf | 288 | =for apidoc Amx|COPHH *|cophh_store_pvs|const COPHH *cophh|const char *key|SV *value|U32 flags |
20439bc7 Z |
289 | |
290 | Like L</cophh_store_pvn>, but takes a literal string instead of a | |
291 | string/length pair, and no precomputed hash. | |
292 | ||
293 | =cut | |
294 | */ | |
295 | ||
296 | #define cophh_store_pvs(cophh, key, value, flags) \ | |
297 | Perl_refcounted_he_new_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, value, flags) | |
298 | ||
299 | /* | |
ffd08bbf | 300 | =for apidoc Amx|COPHH *|cophh_store_pv|const COPHH *cophh|const char *key|U32 hash|SV *value|U32 flags |
20439bc7 Z |
301 | |
302 | Like L</cophh_store_pvn>, but takes a nul-terminated string instead of | |
303 | a string/length pair. | |
304 | ||
305 | =cut | |
306 | */ | |
307 | ||
308 | #define cophh_store_pv(cophh, key, hash, value, flags) \ | |
309 | Perl_refcounted_he_new_pv(aTHX_ cophh, key, hash, value, flags) | |
310 | ||
311 | /* | |
ffd08bbf | 312 | =for apidoc Amx|COPHH *|cophh_store_sv|const COPHH *cophh|SV *key|U32 hash|SV *value|U32 flags |
20439bc7 Z |
313 | |
314 | Like L</cophh_store_pvn>, but takes a Perl scalar instead of a | |
315 | string/length pair. | |
316 | ||
317 | =cut | |
318 | */ | |
319 | ||
320 | #define cophh_store_sv(cophh, key, hash, value, flags) \ | |
321 | Perl_refcounted_he_new_sv(aTHX_ cophh, key, hash, value, flags) | |
322 | ||
323 | /* | |
ffd08bbf | 324 | =for apidoc Amx|COPHH *|cophh_delete_pvn|COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|U32 flags |
20439bc7 Z |
325 | |
326 | Delete a key and its associated value from the cop hints hash I<cophh>, | |
327 | and returns the modified hash. The returned hash pointer is in general | |
328 | not the same as the hash pointer that was passed in. The input hash is | |
329 | consumed by the function, and the pointer to it must not be subsequently | |
330 | used. Use L</cophh_copy> if you need both hashes. | |
331 | ||
332 | The key is specified by I<keypv> and I<keylen>. If I<flags> has the | |
333 | C<COPHH_KEY_UTF8> bit set, the key octets are interpreted as UTF-8, | |
334 | otherwise they are interpreted as Latin-1. I<hash> is a precomputed | |
335 | hash of the key string, or zero if it has not been precomputed. | |
336 | ||
337 | =cut | |
338 | */ | |
339 | ||
340 | #define cophh_delete_pvn(cophh, keypv, keylen, hash, flags) \ | |
341 | Perl_refcounted_he_new_pvn(aTHX_ cophh, keypv, keylen, hash, \ | |
342 | (SV *)NULL, flags) | |
343 | ||
344 | /* | |
ffd08bbf | 345 | =for apidoc Amx|COPHH *|cophh_delete_pvs|const COPHH *cophh|const char *key|U32 flags |
20439bc7 Z |
346 | |
347 | Like L</cophh_delete_pvn>, but takes a literal string instead of a | |
348 | string/length pair, and no precomputed hash. | |
349 | ||
350 | =cut | |
351 | */ | |
352 | ||
353 | #define cophh_delete_pvs(cophh, key, flags) \ | |
354 | Perl_refcounted_he_new_pvn(aTHX_ cophh, STR_WITH_LEN(key), 0, \ | |
355 | (SV *)NULL, flags) | |
356 | ||
357 | /* | |
ffd08bbf | 358 | =for apidoc Amx|COPHH *|cophh_delete_pv|const COPHH *cophh|const char *key|U32 hash|U32 flags |
20439bc7 Z |
359 | |
360 | Like L</cophh_delete_pvn>, but takes a nul-terminated string instead of | |
361 | a string/length pair. | |
362 | ||
363 | =cut | |
364 | */ | |
365 | ||
366 | #define cophh_delete_pv(cophh, key, hash, flags) \ | |
367 | Perl_refcounted_he_new_pv(aTHX_ cophh, key, hash, (SV *)NULL, flags) | |
368 | ||
369 | /* | |
ffd08bbf | 370 | =for apidoc Amx|COPHH *|cophh_delete_sv|const COPHH *cophh|SV *key|U32 hash|U32 flags |
20439bc7 Z |
371 | |
372 | Like L</cophh_delete_pvn>, but takes a Perl scalar instead of a | |
373 | string/length pair. | |
374 | ||
375 | =cut | |
376 | */ | |
377 | ||
378 | #define cophh_delete_sv(cophh, key, hash, flags) \ | |
379 | Perl_refcounted_he_new_sv(aTHX_ cophh, key, hash, (SV *)NULL, flags) | |
0d2925a6 | 380 | |
5ac1e9b2 | 381 | #include "mydtrace.h" |
0d2925a6 | 382 | |
79072805 LW |
383 | struct cop { |
384 | BASEOP | |
d7f23a06 NC |
385 | /* On LP64 putting this here takes advantage of the fact that BASEOP isn't |
386 | an exact multiple of 8 bytes to save structure padding. */ | |
387 | line_t cop_line; /* line # of this command */ | |
dca6062a | 388 | /* label for this construct is now stored in cop_hints_hash */ |
57843af0 | 389 | #ifdef USE_ITHREADS |
11faa288 | 390 | char * cop_stashpv; /* package line was compiled in */ |
57843af0 GS |
391 | char * cop_file; /* file name the following line # is from */ |
392 | #else | |
11faa288 | 393 | HV * cop_stash; /* package line was compiled in */ |
79072805 | 394 | GV * cop_filegv; /* file the following line # is from */ |
57843af0 | 395 | #endif |
d5ec2987 | 396 | U32 cop_hints; /* hints bits from pragmata */ |
a0d0e21e | 397 | U32 cop_seq; /* parse sequence number */ |
72dc9ed5 NC |
398 | /* Beware. mg.c and warnings.pl assume the type of this is STRLEN *: */ |
399 | STRLEN * cop_warnings; /* lexical warnings bitmask */ | |
b3ca2e83 NC |
400 | /* compile time state of %^H. See the comment in op.c for how this is |
401 | used to recreate a hash to return from caller. */ | |
20439bc7 | 402 | COPHH * cop_hints_hash; |
79072805 LW |
403 | }; |
404 | ||
57843af0 GS |
405 | #ifdef USE_ITHREADS |
406 | # define CopFILE(c) ((c)->cop_file) | |
407 | # define CopFILEGV(c) (CopFILE(c) \ | |
a0714e2c | 408 | ? gv_fetchfile(CopFILE(c)) : NULL) |
083fcd59 | 409 | |
7e4e8c89 NC |
410 | # ifdef NETWARE |
411 | # define CopFILE_set(c,pv) ((c)->cop_file = savepv(pv)) | |
d9095cec | 412 | # define CopFILE_setn(c,pv,l) ((c)->cop_file = savepv((pv),(l))) |
7e4e8c89 NC |
413 | # else |
414 | # define CopFILE_set(c,pv) ((c)->cop_file = savesharedpv(pv)) | |
d9095cec | 415 | # define CopFILE_setn(c,pv,l) ((c)->cop_file = savesharedpvn((pv),(l))) |
7e4e8c89 | 416 | # endif |
083fcd59 | 417 | |
57843af0 | 418 | # define CopFILESV(c) (CopFILE(c) \ |
a0714e2c | 419 | ? GvSV(gv_fetchfile(CopFILE(c))) : NULL) |
57843af0 | 420 | # define CopFILEAV(c) (CopFILE(c) \ |
7d49f689 | 421 | ? GvAV(gv_fetchfile(CopFILE(c))) : NULL) |
8688788e SH |
422 | # ifdef DEBUGGING |
423 | # define CopFILEAVx(c) (assert(CopFILE(c)), \ | |
36c7798d | 424 | GvAV(gv_fetchfile(CopFILE(c)))) |
8688788e SH |
425 | # else |
426 | # define CopFILEAVx(c) (GvAV(gv_fetchfile(CopFILE(c)))) | |
427 | # endif | |
57843af0 | 428 | # define CopSTASHPV(c) ((c)->cop_stashpv) |
083fcd59 | 429 | |
7e4e8c89 | 430 | # ifdef NETWARE |
bd61b366 | 431 | # define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = ((pv) ? savepv(pv) : NULL)) |
7e4e8c89 NC |
432 | # else |
433 | # define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = savesharedpv(pv)) | |
434 | # endif | |
083fcd59 | 435 | |
11faa288 | 436 | # define CopSTASH(c) (CopSTASHPV(c) \ |
5c284bb0 | 437 | ? gv_stashpv(CopSTASHPV(c),GV_ADD) : NULL) |
bd61b366 | 438 | # define CopSTASH_set(c,hv) CopSTASHPV_set(c, (hv) ? HvNAME_get(hv) : NULL) |
ed221c57 | 439 | # define CopSTASH_eq(c,hv) ((hv) && stashpv_hvname_match(c,hv)) |
7e4e8c89 NC |
440 | # ifdef NETWARE |
441 | # define CopSTASH_free(c) SAVECOPSTASH_FREE(c) | |
7e4e8c89 NC |
442 | # define CopFILE_free(c) SAVECOPFILE_FREE(c) |
443 | # else | |
ed221c57 | 444 | # define CopSTASH_free(c) PerlMemShared_free(CopSTASHPV(c)) |
bd61b366 | 445 | # define CopFILE_free(c) (PerlMemShared_free(CopFILE(c)),(CopFILE(c) = NULL)) |
7e4e8c89 | 446 | # endif |
57843af0 GS |
447 | #else |
448 | # define CopFILEGV(c) ((c)->cop_filegv) | |
f4dd75d9 GS |
449 | # define CopFILEGV_set(c,gv) ((c)->cop_filegv = (GV*)SvREFCNT_inc(gv)) |
450 | # define CopFILE_set(c,pv) CopFILEGV_set((c), gv_fetchfile(pv)) | |
d9095cec | 451 | # define CopFILE_setn(c,pv,l) CopFILEGV_set((c), gv_fetchfile_flags((pv),(l),0)) |
a0714e2c | 452 | # define CopFILESV(c) (CopFILEGV(c) ? GvSV(CopFILEGV(c)) : NULL) |
7d49f689 | 453 | # define CopFILEAV(c) (CopFILEGV(c) ? GvAV(CopFILEGV(c)) : NULL) |
8688788e SH |
454 | # ifdef DEBUGGING |
455 | # define CopFILEAVx(c) (assert(CopFILEGV(c)), GvAV(CopFILEGV(c))) | |
456 | # else | |
457 | # define CopFILEAVx(c) (GvAV(CopFILEGV(c))) | |
458 | # endif | |
be46dfad RGS |
459 | # define CopFILE(c) (CopFILEGV(c) && GvSV(CopFILEGV(c)) \ |
460 | ? SvPVX(GvSV(CopFILEGV(c))) : NULL) | |
57843af0 | 461 | # define CopSTASH(c) ((c)->cop_stash) |
f4dd75d9 | 462 | # define CopSTASH_set(c,hv) ((c)->cop_stash = (hv)) |
bd61b366 | 463 | # define CopSTASHPV(c) (CopSTASH(c) ? HvNAME_get(CopSTASH(c)) : NULL) |
f4dd75d9 GS |
464 | /* cop_stash is not refcounted */ |
465 | # define CopSTASHPV_set(c,pv) CopSTASH_set((c), gv_stashpv(pv,GV_ADD)) | |
466 | # define CopSTASH_eq(c,hv) (CopSTASH(c) == (hv)) | |
05ec9bb3 | 467 | # define CopSTASH_free(c) |
a0714e2c | 468 | # define CopFILE_free(c) (SvREFCNT_dec(CopFILEGV(c)),(CopFILEGV(c) = NULL)) |
05ec9bb3 | 469 | |
57843af0 | 470 | #endif /* USE_ITHREADS */ |
20439bc7 Z |
471 | |
472 | #define CopHINTHASH_get(c) ((COPHH*)((c)->cop_hints_hash)) | |
473 | #define CopHINTHASH_set(c,h) ((c)->cop_hints_hash = (h)) | |
474 | ||
475 | /* | |
476 | =head1 COP Hint Reading | |
477 | */ | |
478 | ||
479 | /* | |
480 | =for apidoc Am|SV *|cop_hints_fetch_pvn|const COP *cop|const char *keypv|STRLEN keylen|U32 hash|U32 flags | |
481 | ||
482 | Look up the hint entry in the cop I<cop> with the key specified by | |
483 | I<keypv> and I<keylen>. If I<flags> has the C<COPHH_KEY_UTF8> bit set, | |
484 | the key octets are interpreted as UTF-8, otherwise they are interpreted | |
485 | as Latin-1. I<hash> is a precomputed hash of the key string, or zero if | |
486 | it has not been precomputed. Returns a mortal scalar copy of the value | |
487 | associated with the key, or C<&PL_sv_placeholder> if there is no value | |
488 | associated with the key. | |
489 | ||
490 | =cut | |
491 | */ | |
492 | ||
493 | #define cop_hints_fetch_pvn(cop, keypv, keylen, hash, flags) \ | |
494 | cophh_fetch_pvn(CopHINTHASH_get(cop), keypv, keylen, hash, flags) | |
495 | ||
496 | /* | |
497 | =for apidoc Am|SV *|cop_hints_fetch_pvs|const COP *cop|const char *key|U32 flags | |
498 | ||
499 | Like L</cop_hints_fetch_pvn>, but takes a literal string instead of a | |
500 | string/length pair, and no precomputed hash. | |
501 | ||
502 | =cut | |
503 | */ | |
504 | ||
505 | #define cop_hints_fetch_pvs(cop, key, flags) \ | |
506 | cophh_fetch_pvs(CopHINTHASH_get(cop), key, flags) | |
507 | ||
508 | /* | |
509 | =for apidoc Am|SV *|cop_hints_fetch_pv|const COP *cop|const char *key|U32 hash|U32 flags | |
510 | ||
511 | Like L</cop_hints_fetch_pvn>, but takes a nul-terminated string instead | |
512 | of a string/length pair. | |
513 | ||
514 | =cut | |
515 | */ | |
516 | ||
517 | #define cop_hints_fetch_pv(cop, key, hash, flags) \ | |
518 | cophh_fetch_pv(CopHINTHASH_get(cop), key, hash, flags) | |
519 | ||
520 | /* | |
521 | =for apidoc Am|SV *|cop_hints_fetch_sv|const COP *cop|SV *key|U32 hash|U32 flags | |
522 | ||
523 | Like L</cop_hints_fetch_pvn>, but takes a Perl scalar instead of a | |
524 | string/length pair. | |
525 | ||
526 | =cut | |
527 | */ | |
528 | ||
529 | #define cop_hints_fetch_sv(cop, key, hash, flags) \ | |
530 | cophh_fetch_sv(CopHINTHASH_get(cop), key, hash, flags) | |
531 | ||
532 | /* | |
533 | =for apidoc Am|HV *|cop_hints_2hv|const COP *cop|U32 flags | |
534 | ||
535 | Generates and returns a standard Perl hash representing the full set of | |
536 | hint entries in the cop I<cop>. I<flags> is currently unused and must | |
537 | be zero. | |
538 | ||
539 | =cut | |
540 | */ | |
541 | ||
542 | #define cop_hints_2hv(cop, flags) \ | |
543 | cophh_2hv(CopHINTHASH_get(cop), flags) | |
544 | ||
d6747b7a | 545 | #define CopLABEL(c) Perl_fetch_cop_label(aTHX_ (c), NULL, NULL) |
dca6062a | 546 | #define CopLABEL_alloc(pv) ((pv)?savepv(pv):NULL) |
57843af0 | 547 | |
ed094faf | 548 | #define CopSTASH_ne(c,hv) (!CopSTASH_eq(c,hv)) |
cc49e20b | 549 | #define CopLINE(c) ((c)->cop_line) |
57843af0 GS |
550 | #define CopLINE_inc(c) (++CopLINE(c)) |
551 | #define CopLINE_dec(c) (--CopLINE(c)) | |
552 | #define CopLINE_set(c,l) (CopLINE(c) = (l)) | |
cc49e20b | 553 | |
248c2a4d | 554 | /* OutCopFILE() is CopFILE for output (caller, die, warn, etc.) */ |
e37778c2 | 555 | #define OutCopFILE(c) CopFILE(c) |
248c2a4d | 556 | |
7b0bddfa NC |
557 | /* If $[ is non-zero, it's stored in cop_hints under the key "$[", and |
558 | HINT_ARYBASE is set to indicate this. | |
486ec47a | 559 | Setting it is inefficient due to the need to create 2 mortal SVs, but as |
7b0bddfa NC |
560 | using $[ is highly discouraged, no sane Perl code will be using it. */ |
561 | #define CopARYBASE_get(c) \ | |
562 | ((CopHINTS_get(c) & HINT_ARYBASE) \ | |
20439bc7 | 563 | ? SvIV(cop_hints_fetch_pvs((c), "$[", 0)) \ |
7b0bddfa NC |
564 | : 0) |
565 | #define CopARYBASE_set(c, b) STMT_START { \ | |
d5ec2987 NC |
566 | if (b || ((c)->cop_hints & HINT_ARYBASE)) { \ |
567 | (c)->cop_hints |= HINT_ARYBASE; \ | |
f747ebd6 Z |
568 | if ((c) == &PL_compiling) { \ |
569 | SV *val = newSViv(b); \ | |
570 | (void)hv_stores(GvHV(PL_hintgv), "$[", val); \ | |
571 | mg_set(val); \ | |
572 | PL_hints |= HINT_ARYBASE; \ | |
573 | } else { \ | |
20439bc7 Z |
574 | CopHINTHASH_set((c), \ |
575 | cophh_store_pvs(CopHINTHASH_get((c)), "$[", \ | |
576 | sv_2mortal(newSViv(b)), 0)); \ | |
f747ebd6 | 577 | } \ |
7b0bddfa NC |
578 | } \ |
579 | } STMT_END | |
fc15ae8f | 580 | |
623e6609 | 581 | /* FIXME NATIVE_HINTS if this is changed from op_private (see perl.h) */ |
d5ec2987 | 582 | #define CopHINTS_get(c) ((c)->cop_hints + 0) |
623e6609 | 583 | #define CopHINTS_set(c, h) STMT_START { \ |
d5ec2987 | 584 | (c)->cop_hints = (h); \ |
623e6609 NC |
585 | } STMT_END |
586 | ||
79072805 LW |
587 | /* |
588 | * Here we have some enormously heavy (or at least ponderous) wizardry. | |
589 | */ | |
590 | ||
591 | /* subroutine context */ | |
592 | struct block_sub { | |
f9c764c5 | 593 | OP * retop; /* op to execute on exit from sub */ |
8e663997 NC |
594 | /* Above here is the same for sub, format and eval. */ |
595 | CV * cv; | |
f9c764c5 | 596 | /* Above here is the same for sub and format. */ |
79072805 LW |
597 | AV * savearray; |
598 | AV * argarray; | |
bb172083 | 599 | I32 olddepth; |
f3548bdc | 600 | PAD *oldcomppad; |
f9c764c5 NC |
601 | }; |
602 | ||
603 | ||
604 | /* format context */ | |
605 | struct block_format { | |
f39bc417 | 606 | OP * retop; /* op to execute on exit from sub */ |
8e663997 NC |
607 | /* Above here is the same for sub, format and eval. */ |
608 | CV * cv; | |
f9c764c5 NC |
609 | /* Above here is the same for sub and format. */ |
610 | GV * gv; | |
611 | GV * dfoutgv; | |
79072805 LW |
612 | }; |
613 | ||
b36bdeca DM |
614 | /* base for the next two macros. Don't use directly. |
615 | * Note that the refcnt of the cv is incremented twice; The CX one is | |
616 | * decremented by LEAVESUB, the other by LEAVE. */ | |
617 | ||
ee98a1d6 | 618 | #define PUSHSUB_BASE(cx) \ |
5ac1e9b2 | 619 | ENTRY_PROBE(GvENAME(CvGV(cv)), \ |
c6903450 | 620 | CopFILE((const COP *)CvSTART(cv)), \ |
3e2413e5 DL |
621 | CopLINE((const COP *)CvSTART(cv)), \ |
622 | CopSTASHPV((const COP *)CvSTART(cv))); \ | |
5ac1e9b2 | 623 | \ |
79072805 | 624 | cx->blk_sub.cv = cv; \ |
b8f55b69 | 625 | cx->blk_sub.olddepth = CvDEPTH(cv); \ |
ae423868 | 626 | cx->cx_type |= (hasargs) ? CXp_HASARGS : 0; \ |
5f66b61c | 627 | cx->blk_sub.retop = NULL; \ |
b36bdeca | 628 | if (!CvDEPTH(cv)) { \ |
74c765eb AL |
629 | SvREFCNT_inc_simple_void_NN(cv); \ |
630 | SvREFCNT_inc_simple_void_NN(cv); \ | |
b36bdeca DM |
631 | SAVEFREESV(cv); \ |
632 | } | |
633 | ||
ee98a1d6 DM |
634 | |
635 | #define PUSHSUB(cx) \ | |
636 | PUSHSUB_BASE(cx) \ | |
446d0787 | 637 | cx->blk_u16 = PL_op->op_private & \ |
cc8d50a7 | 638 | (OPpLVAL_INTRO|OPpENTERSUB_INARGS); |
79072805 | 639 | |
ee98a1d6 DM |
640 | /* variant for use by OP_DBSTATE, where op_private holds hint bits */ |
641 | #define PUSHSUB_DB(cx) \ | |
642 | PUSHSUB_BASE(cx) \ | |
446d0787 | 643 | cx->blk_u16 = 0; |
ee98a1d6 DM |
644 | |
645 | ||
10067d9a | 646 | #define PUSHFORMAT(cx, retop) \ |
f9c764c5 NC |
647 | cx->blk_format.cv = cv; \ |
648 | cx->blk_format.gv = gv; \ | |
649 | cx->blk_format.retop = (retop); \ | |
f9c764c5 NC |
650 | cx->blk_format.dfoutgv = PL_defoutgv; \ |
651 | SvREFCNT_inc_void(cx->blk_format.dfoutgv) | |
79072805 | 652 | |
3db8f154 | 653 | #define POP_SAVEARRAY() \ |
6d4ff0d2 | 654 | STMT_START { \ |
3280af22 | 655 | SvREFCNT_dec(GvAV(PL_defgv)); \ |
a8bba7fa | 656 | GvAV(PL_defgv) = cx->blk_sub.savearray; \ |
6d4ff0d2 | 657 | } STMT_END |
6d4ff0d2 | 658 | |
ecf8e9dd | 659 | /* junk in @_ spells trouble when cloning CVs and in pp_caller(), so don't |
8e09340b GS |
660 | * leave any (a fast av_clear(ary), basically) */ |
661 | #define CLEAR_ARGARRAY(ary) \ | |
662 | STMT_START { \ | |
663 | AvMAX(ary) += AvARRAY(ary) - AvALLOC(ary); \ | |
9c6bc640 | 664 | AvARRAY(ary) = AvALLOC(ary); \ |
8e09340b GS |
665 | AvFILLp(ary) = -1; \ |
666 | } STMT_END | |
7766f137 | 667 | |
b0d9ce38 GS |
668 | #define POPSUB(cx,sv) \ |
669 | STMT_START { \ | |
8f629a87 NC |
670 | RETURN_PROBE(GvENAME(CvGV((const CV*)cx->blk_sub.cv)), \ |
671 | CopFILE((COP*)CvSTART((const CV*)cx->blk_sub.cv)), \ | |
3e2413e5 DL |
672 | CopLINE((COP*)CvSTART((const CV*)cx->blk_sub.cv)), \ |
673 | CopSTASHPV((COP*)CvSTART((const CV*)cx->blk_sub.cv))); \ | |
5ac1e9b2 | 674 | \ |
bafb2adc | 675 | if (CxHASARGS(cx)) { \ |
7766f137 | 676 | POP_SAVEARRAY(); \ |
d8b46c1b | 677 | /* abandon @_ if it got reified */ \ |
a8bba7fa | 678 | if (AvREAL(cx->blk_sub.argarray)) { \ |
e2d306cb | 679 | const SSize_t fill = AvFILLp(cx->blk_sub.argarray); \ |
a8bba7fa GS |
680 | SvREFCNT_dec(cx->blk_sub.argarray); \ |
681 | cx->blk_sub.argarray = newAV(); \ | |
682 | av_extend(cx->blk_sub.argarray, fill); \ | |
11ca45c0 | 683 | AvREIFY_only(cx->blk_sub.argarray); \ |
b1bc3f34 | 684 | CX_CURPAD_SV(cx->blk_sub, 0) = MUTABLE_SV(cx->blk_sub.argarray); \ |
d8b46c1b | 685 | } \ |
7766f137 | 686 | else { \ |
8e09340b | 687 | CLEAR_ARGARRAY(cx->blk_sub.argarray); \ |
7766f137 | 688 | } \ |
79072805 | 689 | } \ |
b1bc3f34 | 690 | sv = MUTABLE_SV(cx->blk_sub.cv); \ |
8f629a87 | 691 | if (sv && (CvDEPTH((const CV*)sv) = cx->blk_sub.olddepth)) \ |
a0714e2c | 692 | sv = NULL; \ |
b0d9ce38 GS |
693 | } STMT_END |
694 | ||
695 | #define LEAVESUB(sv) \ | |
696 | STMT_START { \ | |
697 | if (sv) \ | |
698 | SvREFCNT_dec(sv); \ | |
699 | } STMT_END | |
79072805 LW |
700 | |
701 | #define POPFORMAT(cx) \ | |
f9c764c5 NC |
702 | setdefout(cx->blk_format.dfoutgv); \ |
703 | SvREFCNT_dec(cx->blk_format.dfoutgv); | |
79072805 LW |
704 | |
705 | /* eval context */ | |
706 | struct block_eval { | |
8e663997 NC |
707 | OP * retop; /* op to execute on exit from eval */ |
708 | /* Above here is the same for sub, format and eval. */ | |
0f79a09d | 709 | SV * old_namesv; |
79072805 | 710 | OP * old_eval_root; |
748a9306 | 711 | SV * cur_text; |
2090ab20 | 712 | CV * cv; |
abd70938 | 713 | JMPENV * cur_top_env; /* value of PL_top_env when eval CX created */ |
79072805 LW |
714 | }; |
715 | ||
17347a51 NC |
716 | /* If we ever need more than 512 op types, change the shift from 7. |
717 | blku_gimme is actually also only 2 bits, so could be merged with something. | |
718 | */ | |
719 | ||
720 | #define CxOLD_IN_EVAL(cx) (((cx)->blk_u16) & 0x7F) | |
721 | #define CxOLD_OP_TYPE(cx) (((cx)->blk_u16) >> 7) | |
85a64632 | 722 | |
6b75f042 | 723 | #define PUSHEVAL(cx,n) \ |
0f79a09d | 724 | STMT_START { \ |
17347a51 NC |
725 | assert(!(PL_in_eval & ~0x7F)); \ |
726 | assert(!(PL_op->op_type & ~0x1FF)); \ | |
727 | cx->blk_u16 = (PL_in_eval & 0x7F) | ((U16)PL_op->op_type << 7); \ | |
a0714e2c | 728 | cx->blk_eval.old_namesv = (n ? newSVpv(n,0) : NULL); \ |
a8bba7fa | 729 | cx->blk_eval.old_eval_root = PL_eval_root; \ |
bdc0bf6f | 730 | cx->blk_eval.cur_text = PL_parser ? PL_parser->linestr : NULL; \ |
601f1833 | 731 | cx->blk_eval.cv = NULL; /* set by doeval(), as applicable */ \ |
5f66b61c | 732 | cx->blk_eval.retop = NULL; \ |
abd70938 | 733 | cx->blk_eval.cur_top_env = PL_top_env; \ |
0f79a09d | 734 | } STMT_END |
79072805 LW |
735 | |
736 | #define POPEVAL(cx) \ | |
0f79a09d | 737 | STMT_START { \ |
85a64632 NC |
738 | PL_in_eval = CxOLD_IN_EVAL(cx); \ |
739 | optype = CxOLD_OP_TYPE(cx); \ | |
7766f137 | 740 | PL_eval_root = cx->blk_eval.old_eval_root; \ |
0f79a09d GS |
741 | if (cx->blk_eval.old_namesv) \ |
742 | sv_2mortal(cx->blk_eval.old_namesv); \ | |
743 | } STMT_END | |
79072805 LW |
744 | |
745 | /* loop context */ | |
746 | struct block_loop { | |
79072805 | 747 | I32 resetsp; |
022eaa24 | 748 | LOOP * my_op; /* My op, that contains redo, next and last ops. */ |
df530c37 DM |
749 | union { /* different ways of locating the iteration variable */ |
750 | SV **svp; | |
751 | GV *gv; | |
752 | PAD *oldcomppad; /* only used in ITHREADS */ | |
753 | } itervar_u; | |
493b0a3c | 754 | union { |
d01136d6 BS |
755 | struct { /* valid if type is LOOP_FOR or LOOP_PLAIN (but {NULL,0})*/ |
756 | AV * ary; /* use the stack if this is NULL */ | |
757 | IV ix; | |
758 | } ary; | |
759 | struct { /* valid if type is LOOP_LAZYIV */ | |
760 | IV cur; | |
761 | IV end; | |
762 | } lazyiv; | |
763 | struct { /* valid if type if LOOP_LAZYSV */ | |
764 | SV * cur; | |
765 | SV * end; /* maxiumum value (or minimum in reverse) */ | |
766 | } lazysv; | |
767 | } state_u; | |
79072805 LW |
768 | }; |
769 | ||
7766f137 | 770 | #ifdef USE_ITHREADS |
f83b46a0 DM |
771 | # define CxITERVAR_PADSV(c) \ |
772 | &CX_CURPAD_SV( (c)->blk_loop.itervar_u, (c)->blk_loop.my_op->op_targ) | |
773 | #else | |
774 | # define CxITERVAR_PADSV(c) ((c)->blk_loop.itervar_u.svp) | |
775 | #endif | |
776 | ||
777 | #define CxITERVAR(c) \ | |
df530c37 | 778 | ((c)->blk_loop.itervar_u.oldcomppad \ |
e846cb92 | 779 | ? (CxPADLOOP(c) \ |
f83b46a0 | 780 | ? CxITERVAR_PADSV(c) \ |
df530c37 | 781 | : &GvSV((c)->blk_loop.itervar_u.gv)) \ |
7766f137 | 782 | : (SV**)NULL) |
f83b46a0 | 783 | |
b1cf8b36 | 784 | #define CxLABEL(c) (0 + CopLABEL((c)->blk_oldcop)) |
ae423868 | 785 | #define CxHASARGS(c) (((c)->cx_type & CXp_HASARGS) == CXp_HASARGS) |
446d0787 | 786 | #define CxLVAL(c) (0 + (c)->blk_u16) |
7766f137 | 787 | |
3b719c58 NC |
788 | #define PUSHLOOP_PLAIN(cx, s) \ |
789 | cx->blk_loop.resetsp = s - PL_stack_base; \ | |
790 | cx->blk_loop.my_op = cLOOP; \ | |
d01136d6 BS |
791 | cx->blk_loop.state_u.ary.ary = NULL; \ |
792 | cx->blk_loop.state_u.ary.ix = 0; \ | |
df530c37 | 793 | cx->blk_loop.itervar_u.svp = NULL; |
3b719c58 | 794 | |
df530c37 | 795 | #define PUSHLOOP_FOR(cx, ivar, s) \ |
38a230cb | 796 | cx->blk_loop.resetsp = s - PL_stack_base; \ |
022eaa24 | 797 | cx->blk_loop.my_op = cLOOP; \ |
d01136d6 BS |
798 | cx->blk_loop.state_u.ary.ary = NULL; \ |
799 | cx->blk_loop.state_u.ary.ix = 0; \ | |
df530c37 | 800 | cx->blk_loop.itervar_u.svp = (SV**)(ivar); |
79072805 LW |
801 | |
802 | #define POPLOOP(cx) \ | |
d01136d6 BS |
803 | if (CxTYPE(cx) == CXt_LOOP_LAZYSV) { \ |
804 | SvREFCNT_dec(cx->blk_loop.state_u.lazysv.cur); \ | |
805 | SvREFCNT_dec(cx->blk_loop.state_u.lazysv.end); \ | |
806 | } \ | |
d01136d6 BS |
807 | if (CxTYPE(cx) == CXt_LOOP_FOR) \ |
808 | SvREFCNT_dec(cx->blk_loop.state_u.ary.ary); | |
79072805 | 809 | |
0d863452 RH |
810 | /* given/when context */ |
811 | struct block_givwhen { | |
812 | OP *leave_op; | |
813 | }; | |
814 | ||
815 | #define PUSHGIVEN(cx) \ | |
816 | cx->blk_givwhen.leave_op = cLOGOP->op_other; | |
817 | ||
818 | #define PUSHWHEN PUSHGIVEN | |
819 | ||
79072805 LW |
820 | /* context common to subroutines, evals and loops */ |
821 | struct block { | |
446d0787 | 822 | U8 blku_type; /* what kind of context this is */ |
2e0df0e8 | 823 | U8 blku_gimme; /* is this block running in list context? */ |
17347a51 | 824 | U16 blku_u16; /* used by block_sub and block_eval (so far) */ |
79072805 LW |
825 | I32 blku_oldsp; /* stack pointer to copy stuff down to */ |
826 | COP * blku_oldcop; /* old curcop pointer */ | |
79072805 LW |
827 | I32 blku_oldmarksp; /* mark stack index */ |
828 | I32 blku_oldscopesp; /* scope stack index */ | |
829 | PMOP * blku_oldpm; /* values of pattern match vars */ | |
79072805 LW |
830 | |
831 | union { | |
832 | struct block_sub blku_sub; | |
f9c764c5 | 833 | struct block_format blku_format; |
79072805 LW |
834 | struct block_eval blku_eval; |
835 | struct block_loop blku_loop; | |
0d863452 | 836 | struct block_givwhen blku_givwhen; |
79072805 LW |
837 | } blk_u; |
838 | }; | |
839 | #define blk_oldsp cx_u.cx_blk.blku_oldsp | |
840 | #define blk_oldcop cx_u.cx_blk.blku_oldcop | |
79072805 LW |
841 | #define blk_oldmarksp cx_u.cx_blk.blku_oldmarksp |
842 | #define blk_oldscopesp cx_u.cx_blk.blku_oldscopesp | |
843 | #define blk_oldpm cx_u.cx_blk.blku_oldpm | |
844 | #define blk_gimme cx_u.cx_blk.blku_gimme | |
446d0787 | 845 | #define blk_u16 cx_u.cx_blk.blku_u16 |
79072805 | 846 | #define blk_sub cx_u.cx_blk.blk_u.blku_sub |
f9c764c5 | 847 | #define blk_format cx_u.cx_blk.blk_u.blku_format |
79072805 LW |
848 | #define blk_eval cx_u.cx_blk.blk_u.blku_eval |
849 | #define blk_loop cx_u.cx_blk.blk_u.blku_loop | |
0d863452 | 850 | #define blk_givwhen cx_u.cx_blk.blk_u.blku_givwhen |
79072805 | 851 | |
1c98cc53 | 852 | #define DEBUG_CX(action) \ |
d9f81b50 | 853 | DEBUG_l( \ |
1c98cc53 DM |
854 | Perl_deb(aTHX_ "CX %ld %s %s (scope %ld,%ld) at %s:%d\n", \ |
855 | (long)cxstack_ix, \ | |
856 | action, \ | |
857 | PL_block_type[CxTYPE(&cxstack[cxstack_ix])], \ | |
858 | (long)PL_scopestack_ix, \ | |
859 | (long)(cxstack[cxstack_ix].blk_oldscopesp), \ | |
d9f81b50 | 860 | __FILE__, __LINE__)); |
1c98cc53 | 861 | |
79072805 | 862 | /* Enter a block. */ |
8990e307 | 863 | #define PUSHBLOCK(cx,t,sp) CXINC, cx = &cxstack[cxstack_ix], \ |
79072805 | 864 | cx->cx_type = t, \ |
3280af22 NIS |
865 | cx->blk_oldsp = sp - PL_stack_base, \ |
866 | cx->blk_oldcop = PL_curcop, \ | |
1aff0e91 | 867 | cx->blk_oldmarksp = PL_markstack_ptr - PL_markstack, \ |
3280af22 | 868 | cx->blk_oldscopesp = PL_scopestack_ix, \ |
3280af22 | 869 | cx->blk_oldpm = PL_curpm, \ |
eb160463 | 870 | cx->blk_gimme = (U8)gimme; \ |
1c98cc53 | 871 | DEBUG_CX("PUSH"); |
79072805 LW |
872 | |
873 | /* Exit a block (RETURN and LAST). */ | |
1c98cc53 DM |
874 | #define POPBLOCK(cx,pm) \ |
875 | DEBUG_CX("POP"); \ | |
876 | cx = &cxstack[cxstack_ix--], \ | |
1aff0e91 | 877 | newsp = PL_stack_base + cx->blk_oldsp, \ |
3280af22 NIS |
878 | PL_curcop = cx->blk_oldcop, \ |
879 | PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp, \ | |
880 | PL_scopestack_ix = cx->blk_oldscopesp, \ | |
3280af22 | 881 | pm = cx->blk_oldpm, \ |
1c98cc53 | 882 | gimme = cx->blk_gimme; |
79072805 LW |
883 | |
884 | /* Continue a block elsewhere (NEXT and REDO). */ | |
1c98cc53 DM |
885 | #define TOPBLOCK(cx) \ |
886 | DEBUG_CX("TOP"); \ | |
887 | cx = &cxstack[cxstack_ix], \ | |
1aff0e91 | 888 | PL_stack_sp = PL_stack_base + cx->blk_oldsp, \ |
3280af22 NIS |
889 | PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp, \ |
890 | PL_scopestack_ix = cx->blk_oldscopesp, \ | |
1c98cc53 | 891 | PL_curpm = cx->blk_oldpm; |
79072805 LW |
892 | |
893 | /* substitution context */ | |
894 | struct subst { | |
446d0787 | 895 | U8 sbu_type; /* what kind of context this is */ |
1ed74d04 | 896 | U8 sbu_rflags; |
446d0787 | 897 | U16 sbu_rxtainted; /* matches struct block */ |
79072805 LW |
898 | I32 sbu_iters; |
899 | I32 sbu_maxiters; | |
4633a7c4 | 900 | I32 sbu_oldsave; |
79072805 LW |
901 | char * sbu_orig; |
902 | SV * sbu_dstr; | |
903 | SV * sbu_targ; | |
904 | char * sbu_s; | |
905 | char * sbu_m; | |
906 | char * sbu_strend; | |
c90c0ff4 | 907 | void * sbu_rxres; |
c07a80fd | 908 | REGEXP * sbu_rx; |
79072805 LW |
909 | }; |
910 | #define sb_iters cx_u.cx_subst.sbu_iters | |
911 | #define sb_maxiters cx_u.cx_subst.sbu_maxiters | |
22e551b9 | 912 | #define sb_rflags cx_u.cx_subst.sbu_rflags |
4633a7c4 | 913 | #define sb_oldsave cx_u.cx_subst.sbu_oldsave |
71be2cbc | 914 | #define sb_once cx_u.cx_subst.sbu_once |
915 | #define sb_rxtainted cx_u.cx_subst.sbu_rxtainted | |
79072805 LW |
916 | #define sb_orig cx_u.cx_subst.sbu_orig |
917 | #define sb_dstr cx_u.cx_subst.sbu_dstr | |
918 | #define sb_targ cx_u.cx_subst.sbu_targ | |
919 | #define sb_s cx_u.cx_subst.sbu_s | |
920 | #define sb_m cx_u.cx_subst.sbu_m | |
921 | #define sb_strend cx_u.cx_subst.sbu_strend | |
c90c0ff4 | 922 | #define sb_rxres cx_u.cx_subst.sbu_rxres |
c07a80fd | 923 | #define sb_rx cx_u.cx_subst.sbu_rx |
79072805 | 924 | |
9c105995 NC |
925 | #ifdef PERL_CORE |
926 | # define PUSHSUBST(cx) CXINC, cx = &cxstack[cxstack_ix], \ | |
79072805 LW |
927 | cx->sb_iters = iters, \ |
928 | cx->sb_maxiters = maxiters, \ | |
22e551b9 | 929 | cx->sb_rflags = r_flags, \ |
4633a7c4 | 930 | cx->sb_oldsave = oldsave, \ |
71be2cbc | 931 | cx->sb_rxtainted = rxtainted, \ |
79072805 LW |
932 | cx->sb_orig = orig, \ |
933 | cx->sb_dstr = dstr, \ | |
934 | cx->sb_targ = targ, \ | |
935 | cx->sb_s = s, \ | |
936 | cx->sb_m = m, \ | |
937 | cx->sb_strend = strend, \ | |
4608196e | 938 | cx->sb_rxres = NULL, \ |
c07a80fd | 939 | cx->sb_rx = rx, \ |
1ed74d04 | 940 | cx->cx_type = CXt_SUBST | (once ? CXp_ONCE : 0); \ |
e22ae1e2 | 941 | rxres_save(&cx->sb_rxres, rx); \ |
b69b0499 | 942 | (void)ReREFCNT_inc(rx) |
79072805 | 943 | |
9c105995 | 944 | # define POPSUBST(cx) cx = &cxstack[cxstack_ix--]; \ |
e22ae1e2 DM |
945 | rxres_free(&cx->sb_rxres); \ |
946 | ReREFCNT_dec(cx->sb_rx) | |
9c105995 NC |
947 | #endif |
948 | ||
949 | #define CxONCE(cx) ((cx)->cx_type & CXp_ONCE) | |
79072805 LW |
950 | |
951 | struct context { | |
79072805 LW |
952 | union { |
953 | struct block cx_blk; | |
954 | struct subst cx_subst; | |
955 | } cx_u; | |
956 | }; | |
2e0df0e8 | 957 | #define cx_type cx_u.cx_subst.sbu_type |
6b35e009 | 958 | |
76753e7f NC |
959 | /* If you re-order these, there is also an array of uppercase names in perl.h |
960 | and a static array of context names in pp_ctl.c */ | |
3701055e | 961 | #define CXTYPEMASK 0xf |
79072805 | 962 | #define CXt_NULL 0 |
76753e7f NC |
963 | #define CXt_WHEN 1 |
964 | #define CXt_BLOCK 2 | |
965 | /* When micro-optimising :-) keep GIVEN next to the LOOPs, as these 5 share a | |
966 | jump table in pp_ctl.c | |
967 | The first 4 don't have a 'case' in at least one switch statement in pp_ctl.c | |
968 | */ | |
969 | #define CXt_GIVEN 3 | |
c6fdafd0 | 970 | /* This is first so that CXt_LOOP_FOR|CXt_LOOP_LAZYIV is CXt_LOOP_LAZYIV */ |
76753e7f NC |
971 | #define CXt_LOOP_FOR 4 |
972 | #define CXt_LOOP_PLAIN 5 | |
973 | #define CXt_LOOP_LAZYSV 6 | |
974 | #define CXt_LOOP_LAZYIV 7 | |
975 | #define CXt_SUB 8 | |
976 | #define CXt_FORMAT 9 | |
977 | #define CXt_EVAL 10 | |
978 | #define CXt_SUBST 11 | |
979 | /* SUBST doesn't feature in all switch statements. */ | |
79072805 | 980 | |
3701055e NC |
981 | /* private flags for CXt_SUB and CXt_NULL |
982 | However, this is checked in many places which do not check the type, so | |
983 | this bit needs to be kept clear for most everything else. For reasons I | |
984 | haven't investigated, it can coexist with CXp_FOR_DEF */ | |
1f27d788 NC |
985 | #define CXp_MULTICALL 0x10 /* part of a multicall (so don't |
986 | tear down context on exit). */ | |
9850bf21 | 987 | |
ae423868 | 988 | /* private flags for CXt_SUB and CXt_FORMAT */ |
1f27d788 | 989 | #define CXp_HASARGS 0x20 |
ae423868 | 990 | |
6b35e009 | 991 | /* private flags for CXt_EVAL */ |
1f27d788 NC |
992 | #define CXp_REAL 0x20 /* truly eval'', not a lookalike */ |
993 | #define CXp_TRYBLOCK 0x40 /* eval{}, not eval'' or similar */ | |
6b35e009 | 994 | |
7766f137 | 995 | /* private flags for CXt_LOOP */ |
1f27d788 | 996 | #define CXp_FOR_DEF 0x10 /* foreach using $_ */ |
56b98d0f | 997 | #define CxPADLOOP(c) ((c)->blk_loop.my_op->op_targ) |
e846cb92 | 998 | |
1ed74d04 NC |
999 | /* private flags for CXt_SUBST */ |
1000 | #define CXp_ONCE 0x10 /* What was sbu_once in struct subst */ | |
7766f137 | 1001 | |
6b35e009 | 1002 | #define CxTYPE(c) ((c)->cx_type & CXTYPEMASK) |
76753e7f | 1003 | #define CxTYPE_is_LOOP(c) (((c)->cx_type & 0xC) == 0x4) |
9850bf21 RH |
1004 | #define CxMULTICALL(c) (((c)->cx_type & CXp_MULTICALL) \ |
1005 | == CXp_MULTICALL) | |
0588a150 | 1006 | #define CxREALEVAL(c) (((c)->cx_type & (CXTYPEMASK|CXp_REAL)) \ |
7766f137 | 1007 | == (CXt_EVAL|CXp_REAL)) |
0588a150 | 1008 | #define CxTRYBLOCK(c) (((c)->cx_type & (CXTYPEMASK|CXp_TRYBLOCK)) \ |
1d76a5c3 | 1009 | == (CXt_EVAL|CXp_TRYBLOCK)) |
3b719c58 NC |
1010 | #define CxFOREACH(c) (CxTYPE_is_LOOP(c) && CxTYPE(c) != CXt_LOOP_PLAIN) |
1011 | #define CxFOREACHDEF(c) ((CxTYPE_is_LOOP(c) && CxTYPE(c) != CXt_LOOP_PLAIN) \ | |
1012 | && ((c)->cx_type & CXp_FOR_DEF)) | |
6b35e009 | 1013 | |
109bf713 | 1014 | #define CXINC (cxstack_ix < cxstack_max ? ++cxstack_ix : (cxstack_ix = cxinc())) |
79072805 | 1015 | |
ccfc67b7 JH |
1016 | /* |
1017 | =head1 "Gimme" Values | |
1018 | */ | |
954c1994 GS |
1019 | |
1020 | /* | |
1021 | =for apidoc AmU||G_SCALAR | |
1022 | Used to indicate scalar context. See C<GIMME_V>, C<GIMME>, and | |
1023 | L<perlcall>. | |
1024 | ||
1025 | =for apidoc AmU||G_ARRAY | |
91e74348 | 1026 | Used to indicate list context. See C<GIMME_V>, C<GIMME> and |
954c1994 GS |
1027 | L<perlcall>. |
1028 | ||
1029 | =for apidoc AmU||G_VOID | |
1030 | Used to indicate void context. See C<GIMME_V> and L<perlcall>. | |
1031 | ||
1032 | =for apidoc AmU||G_DISCARD | |
1033 | Indicates that arguments returned from a callback should be discarded. See | |
1034 | L<perlcall>. | |
1035 | ||
1036 | =for apidoc AmU||G_EVAL | |
1037 | ||
1038 | Used to force a Perl C<eval> wrapper around a callback. See | |
1039 | L<perlcall>. | |
1040 | ||
1041 | =for apidoc AmU||G_NOARGS | |
1042 | ||
1043 | Indicates that no arguments are being sent to a callback. See | |
1044 | L<perlcall>. | |
1045 | ||
1046 | =cut | |
1047 | */ | |
1048 | ||
2f8edad0 NC |
1049 | #define G_SCALAR 2 |
1050 | #define G_ARRAY 3 | |
1051 | #define G_VOID 1 | |
1052 | #define G_WANT 3 | |
79072805 | 1053 | |
864dbfa3 | 1054 | /* extra flags for Perl_call_* routines */ |
2f8edad0 | 1055 | #define G_DISCARD 4 /* Call FREETMPS. |
b54b4831 NC |
1056 | Don't change this without consulting the |
1057 | hash actions codes defined in hv.h */ | |
2f8edad0 NC |
1058 | #define G_EVAL 8 /* Assume eval {} around subroutine call. */ |
1059 | #define G_NOARGS 16 /* Don't construct a @_ array. */ | |
7ce09284 | 1060 | #define G_KEEPERR 32 /* Warn for errors, don't overwrite $@ */ |
2f8edad0 NC |
1061 | #define G_NODEBUG 64 /* Disable debugging at toplevel. */ |
1062 | #define G_METHOD 128 /* Calling method. */ | |
c40f1585 | 1063 | #define G_FAKINGEVAL 256 /* Faking an eval context for call_sv or |
edb2152a | 1064 | fold_constants. */ |
67549bd2 NC |
1065 | #define G_UNDEF_FILL 512 /* Fill the stack with &PL_sv_undef |
1066 | A special case for UNSHIFT in | |
1067 | Perl_magic_methcall(). */ | |
d1d7a15d NC |
1068 | #define G_WRITING_TO_STDERR 1024 /* Perl_write_to_stderr() is calling |
1069 | Perl_magic_methcall(). */ | |
e336de0d | 1070 | |
faef0170 HS |
1071 | /* flag bits for PL_in_eval */ |
1072 | #define EVAL_NULL 0 /* not in an eval */ | |
1073 | #define EVAL_INEVAL 1 /* some enclosing scope is an eval */ | |
1074 | #define EVAL_WARNONLY 2 /* used by yywarn() when calling yyerror() */ | |
864dbfa3 | 1075 | #define EVAL_KEEPERR 4 /* set by Perl_call_sv if G_KEEPERR */ |
6dc8a9e4 | 1076 | #define EVAL_INREQUIRE 8 /* The code is being required. */ |
faef0170 | 1077 | |
e336de0d GS |
1078 | /* Support for switching (stack and block) contexts. |
1079 | * This ensures magic doesn't invalidate local stack and cx pointers. | |
1080 | */ | |
1081 | ||
e788e7d3 GS |
1082 | #define PERLSI_UNKNOWN -1 |
1083 | #define PERLSI_UNDEF 0 | |
1084 | #define PERLSI_MAIN 1 | |
1085 | #define PERLSI_MAGIC 2 | |
1086 | #define PERLSI_SORT 3 | |
1087 | #define PERLSI_SIGNAL 4 | |
1088 | #define PERLSI_OVERLOAD 5 | |
1089 | #define PERLSI_DESTROY 6 | |
1090 | #define PERLSI_WARNHOOK 7 | |
1091 | #define PERLSI_DIEHOOK 8 | |
1092 | #define PERLSI_REQUIRE 9 | |
e336de0d GS |
1093 | |
1094 | struct stackinfo { | |
1095 | AV * si_stack; /* stack for current runlevel */ | |
1096 | PERL_CONTEXT * si_cxstack; /* context stack for runlevel */ | |
9bd87817 NC |
1097 | struct stackinfo * si_prev; |
1098 | struct stackinfo * si_next; | |
e336de0d GS |
1099 | I32 si_cxix; /* current context index */ |
1100 | I32 si_cxmax; /* maximum allocated index */ | |
1101 | I32 si_type; /* type of runlevel */ | |
ce2f7c3b | 1102 | I32 si_markoff; /* offset where markstack begins for us. |
e336de0d GS |
1103 | * currently used only with DEBUGGING, |
1104 | * but not #ifdef-ed for bincompat */ | |
1105 | }; | |
1106 | ||
1107 | typedef struct stackinfo PERL_SI; | |
1108 | ||
3280af22 NIS |
1109 | #define cxstack (PL_curstackinfo->si_cxstack) |
1110 | #define cxstack_ix (PL_curstackinfo->si_cxix) | |
1111 | #define cxstack_max (PL_curstackinfo->si_cxmax) | |
e336de0d GS |
1112 | |
1113 | #ifdef DEBUGGING | |
ce2f7c3b GS |
1114 | # define SET_MARK_OFFSET \ |
1115 | PL_curstackinfo->si_markoff = PL_markstack_ptr - PL_markstack | |
e336de0d | 1116 | #else |
ce2f7c3b | 1117 | # define SET_MARK_OFFSET NOOP |
e336de0d GS |
1118 | #endif |
1119 | ||
d3acc0f7 | 1120 | #define PUSHSTACKi(type) \ |
e336de0d | 1121 | STMT_START { \ |
3280af22 | 1122 | PERL_SI *next = PL_curstackinfo->si_next; \ |
1c98cc53 DM |
1123 | DEBUG_l({ \ |
1124 | int i = 0; PERL_SI *p = PL_curstackinfo; \ | |
1125 | while (p) { i++; p = p->si_prev; } \ | |
1126 | Perl_deb(aTHX_ "push STACKINFO %d at %s:%d\n", \ | |
1127 | i, __FILE__, __LINE__);}) \ | |
e336de0d GS |
1128 | if (!next) { \ |
1129 | next = new_stackinfo(32, 2048/sizeof(PERL_CONTEXT) - 1); \ | |
3280af22 NIS |
1130 | next->si_prev = PL_curstackinfo; \ |
1131 | PL_curstackinfo->si_next = next; \ | |
e336de0d GS |
1132 | } \ |
1133 | next->si_type = type; \ | |
1134 | next->si_cxix = -1; \ | |
1135 | AvFILLp(next->si_stack) = 0; \ | |
3280af22 NIS |
1136 | SWITCHSTACK(PL_curstack,next->si_stack); \ |
1137 | PL_curstackinfo = next; \ | |
ce2f7c3b | 1138 | SET_MARK_OFFSET; \ |
e336de0d GS |
1139 | } STMT_END |
1140 | ||
e788e7d3 | 1141 | #define PUSHSTACK PUSHSTACKi(PERLSI_UNKNOWN) |
d3acc0f7 | 1142 | |
3095d977 GS |
1143 | /* POPSTACK works with PL_stack_sp, so it may need to be bracketed by |
1144 | * PUTBACK/SPAGAIN to flush/refresh any local SP that may be active */ | |
d3acc0f7 | 1145 | #define POPSTACK \ |
e336de0d | 1146 | STMT_START { \ |
39644a26 | 1147 | dSP; \ |
c4420975 | 1148 | PERL_SI * const prev = PL_curstackinfo->si_prev; \ |
1c98cc53 DM |
1149 | DEBUG_l({ \ |
1150 | int i = -1; PERL_SI *p = PL_curstackinfo; \ | |
1151 | while (p) { i++; p = p->si_prev; } \ | |
1152 | Perl_deb(aTHX_ "pop STACKINFO %d at %s:%d\n", \ | |
1153 | i, __FILE__, __LINE__);}) \ | |
e336de0d | 1154 | if (!prev) { \ |
bf49b057 | 1155 | PerlIO_printf(Perl_error_log, "panic: POPSTACK\n"); \ |
e336de0d GS |
1156 | my_exit(1); \ |
1157 | } \ | |
3280af22 | 1158 | SWITCHSTACK(PL_curstack,prev->si_stack); \ |
e336de0d | 1159 | /* don't free prev here, free them all at the END{} */ \ |
3280af22 | 1160 | PL_curstackinfo = prev; \ |
e336de0d GS |
1161 | } STMT_END |
1162 | ||
1163 | #define POPSTACK_TO(s) \ | |
1164 | STMT_START { \ | |
3280af22 | 1165 | while (PL_curstack != s) { \ |
bac4b2ad | 1166 | dounwind(-1); \ |
d3acc0f7 | 1167 | POPSTACK; \ |
bac4b2ad | 1168 | } \ |
e336de0d | 1169 | } STMT_END |
923e4eb5 JH |
1170 | |
1171 | #define IN_PERL_COMPILETIME (PL_curcop == &PL_compiling) | |
1172 | #define IN_PERL_RUNTIME (PL_curcop != &PL_compiling) | |
1173 | ||
9850bf21 RH |
1174 | /* |
1175 | =head1 Multicall Functions | |
1176 | ||
1177 | =for apidoc Ams||dMULTICALL | |
1178 | Declare local variables for a multicall. See L<perlcall/Lightweight Callbacks>. | |
1179 | ||
1180 | =for apidoc Ams||PUSH_MULTICALL | |
1181 | Opening bracket for a lightweight callback. | |
1182 | See L<perlcall/Lightweight Callbacks>. | |
1183 | ||
1184 | =for apidoc Ams||MULTICALL | |
1185 | Make a lightweight callback. See L<perlcall/Lightweight Callbacks>. | |
1186 | ||
1187 | =for apidoc Ams||POP_MULTICALL | |
1188 | Closing bracket for a lightweight callback. | |
1189 | See L<perlcall/Lightweight Callbacks>. | |
1190 | ||
1191 | =cut | |
1192 | */ | |
1193 | ||
1194 | #define dMULTICALL \ | |
1195 | SV **newsp; /* set by POPBLOCK */ \ | |
1196 | PERL_CONTEXT *cx; \ | |
82f35e8b | 1197 | CV *multicall_cv; \ |
9850bf21 RH |
1198 | OP *multicall_cop; \ |
1199 | bool multicall_oldcatch; \ | |
1200 | U8 hasargs = 0 /* used by PUSHSUB */ | |
1201 | ||
82f35e8b | 1202 | #define PUSH_MULTICALL(the_cv) \ |
9850bf21 | 1203 | STMT_START { \ |
0bcc34c2 AL |
1204 | CV * const _nOnclAshIngNamE_ = the_cv; \ |
1205 | CV * const cv = _nOnclAshIngNamE_; \ | |
1206 | AV * const padlist = CvPADLIST(cv); \ | |
9850bf21 RH |
1207 | ENTER; \ |
1208 | multicall_oldcatch = CATCH_GET; \ | |
1209 | SAVETMPS; SAVEVPTR(PL_op); \ | |
1210 | CATCH_SET(TRUE); \ | |
1bbbfc50 | 1211 | PUSHSTACKi(PERLSI_SORT); \ |
9850bf21 RH |
1212 | PUSHBLOCK(cx, CXt_SUB|CXp_MULTICALL, PL_stack_sp); \ |
1213 | PUSHSUB(cx); \ | |
1214 | if (++CvDEPTH(cv) >= 2) { \ | |
1215 | PERL_STACK_OVERFLOW_CHECK(); \ | |
1216 | Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \ | |
1217 | } \ | |
1218 | SAVECOMPPAD(); \ | |
1219 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \ | |
82f35e8b | 1220 | multicall_cv = cv; \ |
9850bf21 RH |
1221 | multicall_cop = CvSTART(cv); \ |
1222 | } STMT_END | |
1223 | ||
1224 | #define MULTICALL \ | |
1225 | STMT_START { \ | |
1226 | PL_op = multicall_cop; \ | |
1227 | CALLRUNOPS(aTHX); \ | |
1228 | } STMT_END | |
1229 | ||
1230 | #define POP_MULTICALL \ | |
1231 | STMT_START { \ | |
f837477c DM |
1232 | if (! --CvDEPTH(multicall_cv)) \ |
1233 | LEAVESUB(multicall_cv); \ | |
9850bf21 | 1234 | POPBLOCK(cx,PL_curpm); \ |
1bbbfc50 | 1235 | POPSTACK; \ |
9850bf21 RH |
1236 | CATCH_SET(multicall_oldcatch); \ |
1237 | LEAVE; \ | |
1bbbfc50 | 1238 | SPAGAIN; \ |
9850bf21 | 1239 | } STMT_END |
b3ca2e83 NC |
1240 | |
1241 | /* | |
1242 | * Local variables: | |
1243 | * c-indentation-style: bsd | |
1244 | * c-basic-offset: 4 | |
1245 | * indent-tabs-mode: t | |
1246 | * End: | |
1247 | * | |
1248 | * ex: set ts=8 sts=4 sw=4 noet: | |
1249 | */ |