Commit | Line | Data |
a0d0e21e |
1 | /* av.c |
79072805 |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "...for the Entwives desired order, and plenty, and peace (by which they |
12 | * meant that things should remain where they had set them)." --Treebeard |
79072805 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
16 | #include "perl.h" |
17 | |
fb73857a |
18 | void |
8ac85365 |
19 | av_reify(AV *av) |
a0d0e21e |
20 | { |
21 | I32 key; |
22 | SV* sv; |
fb73857a |
23 | |
24 | if (AvREAL(av)) |
25 | return; |
a0d0e21e |
26 | key = AvMAX(av) + 1; |
27 | while (key > AvFILL(av) + 1) |
28 | AvARRAY(av)[--key] = &sv_undef; |
29 | while (key) { |
30 | sv = AvARRAY(av)[--key]; |
31 | assert(sv); |
11343788 |
32 | if (sv != &sv_undef) { |
33 | dTHR; |
a0d0e21e |
34 | (void)SvREFCNT_inc(sv); |
11343788 |
35 | } |
a0d0e21e |
36 | } |
29de640a |
37 | key = AvARRAY(av) - AvALLOC(av); |
38 | while (key) |
39 | AvALLOC(av)[--key] = &sv_undef; |
a0d0e21e |
40 | AvREAL_on(av); |
41 | } |
42 | |
43 | void |
8ac85365 |
44 | av_extend(AV *av, I32 key) |
a0d0e21e |
45 | { |
11343788 |
46 | dTHR; /* only necessary if we have to extend stack */ |
a0d0e21e |
47 | if (key > AvMAX(av)) { |
48 | SV** ary; |
49 | I32 tmp; |
50 | I32 newmax; |
51 | |
52 | if (AvALLOC(av) != AvARRAY(av)) { |
53 | ary = AvALLOC(av) + AvFILL(av) + 1; |
54 | tmp = AvARRAY(av) - AvALLOC(av); |
55 | Move(AvARRAY(av), AvALLOC(av), AvFILL(av)+1, SV*); |
56 | AvMAX(av) += tmp; |
57 | SvPVX(av) = (char*)AvALLOC(av); |
58 | if (AvREAL(av)) { |
59 | while (tmp) |
60 | ary[--tmp] = &sv_undef; |
61 | } |
62 | |
63 | if (key > AvMAX(av) - 10) { |
64 | newmax = key + AvMAX(av); |
65 | goto resize; |
66 | } |
67 | } |
68 | else { |
69 | if (AvALLOC(av)) { |
c07a80fd |
70 | #ifndef STRANGE_MALLOC |
4633a7c4 |
71 | U32 bytes; |
c07a80fd |
72 | #endif |
4633a7c4 |
73 | |
a0d0e21e |
74 | newmax = key + AvMAX(av) / 5; |
75 | resize: |
4633a7c4 |
76 | #ifdef STRANGE_MALLOC |
a0d0e21e |
77 | Renew(AvALLOC(av),newmax+1, SV*); |
4633a7c4 |
78 | #else |
79 | bytes = (newmax + 1) * sizeof(SV*); |
80 | #define MALLOC_OVERHEAD 16 |
81 | tmp = MALLOC_OVERHEAD; |
82 | while (tmp - MALLOC_OVERHEAD < bytes) |
83 | tmp += tmp; |
84 | tmp -= MALLOC_OVERHEAD; |
85 | tmp /= sizeof(SV*); |
86 | assert(tmp > newmax); |
87 | newmax = tmp - 1; |
88 | New(2,ary, newmax+1, SV*); |
89 | Copy(AvALLOC(av), ary, AvMAX(av)+1, SV*); |
fba3b22e |
90 | if (AvMAX(av) > 64) |
91 | offer_nice_chunk(AvALLOC(av), (AvMAX(av)+1) * sizeof(SV*)); |
4633a7c4 |
92 | else |
93 | Safefree(AvALLOC(av)); |
94 | AvALLOC(av) = ary; |
95 | #endif |
a0d0e21e |
96 | ary = AvALLOC(av) + AvMAX(av) + 1; |
97 | tmp = newmax - AvMAX(av); |
7d55f622 |
98 | if (av == curstack) { /* Oops, grew stack (via av_store()?) */ |
a0d0e21e |
99 | stack_sp = AvALLOC(av) + (stack_sp - stack_base); |
100 | stack_base = AvALLOC(av); |
101 | stack_max = stack_base + newmax; |
102 | } |
103 | } |
104 | else { |
105 | newmax = key < 4 ? 4 : key; |
106 | New(2,AvALLOC(av), newmax+1, SV*); |
107 | ary = AvALLOC(av) + 1; |
108 | tmp = newmax; |
109 | AvALLOC(av)[0] = &sv_undef; /* For the stacks */ |
110 | } |
111 | if (AvREAL(av)) { |
112 | while (tmp) |
113 | ary[--tmp] = &sv_undef; |
114 | } |
115 | |
116 | SvPVX(av) = (char*)AvALLOC(av); |
117 | AvMAX(av) = newmax; |
118 | } |
119 | } |
120 | } |
121 | |
79072805 |
122 | SV** |
8ac85365 |
123 | av_fetch(register AV *av, I32 key, I32 lval) |
79072805 |
124 | { |
125 | SV *sv; |
126 | |
a0d0e21e |
127 | if (!av) |
128 | return 0; |
129 | |
8990e307 |
130 | if (SvRMAGICAL(av)) { |
463ee0b2 |
131 | if (mg_find((SV*)av,'P')) { |
11343788 |
132 | dTHR; |
8990e307 |
133 | sv = sv_newmortal(); |
463ee0b2 |
134 | mg_copy((SV*)av, sv, 0, key); |
463ee0b2 |
135 | Sv = sv; |
136 | return &Sv; |
137 | } |
138 | } |
139 | |
a0d0e21e |
140 | if (key < 0) { |
141 | key += AvFILL(av) + 1; |
142 | if (key < 0) |
143 | return 0; |
144 | } |
145 | else if (key > AvFILL(av)) { |
146 | if (!lval) |
147 | return 0; |
148 | if (AvREALISH(av)) |
149 | sv = NEWSV(5,0); |
150 | else |
151 | sv = sv_newmortal(); |
152 | return av_store(av,key,sv); |
79072805 |
153 | } |
a0d0e21e |
154 | if (AvARRAY(av)[key] == &sv_undef) { |
4dbf4341 |
155 | emptyness: |
79072805 |
156 | if (lval) { |
157 | sv = NEWSV(6,0); |
463ee0b2 |
158 | return av_store(av,key,sv); |
79072805 |
159 | } |
160 | return 0; |
161 | } |
4dbf4341 |
162 | else if (AvREIFY(av) |
163 | && (!AvARRAY(av)[key] /* eg. @_ could have freed elts */ |
164 | || SvTYPE(AvARRAY(av)[key]) == SVTYPEMASK)) { |
165 | AvARRAY(av)[key] = &sv_undef; /* 1/2 reify */ |
166 | goto emptyness; |
167 | } |
463ee0b2 |
168 | return &AvARRAY(av)[key]; |
79072805 |
169 | } |
170 | |
171 | SV** |
8ac85365 |
172 | av_store(register AV *av, I32 key, SV *val) |
79072805 |
173 | { |
79072805 |
174 | SV** ary; |
175 | |
a0d0e21e |
176 | if (!av) |
177 | return 0; |
43fcc5d2 |
178 | if (!val) |
179 | val = &sv_undef; |
463ee0b2 |
180 | |
8990e307 |
181 | if (SvRMAGICAL(av)) { |
463ee0b2 |
182 | if (mg_find((SV*)av,'P')) { |
43fcc5d2 |
183 | if (val != &sv_undef) |
184 | mg_copy((SV*)av, val, 0, key); |
463ee0b2 |
185 | return 0; |
186 | } |
187 | } |
188 | |
a0d0e21e |
189 | if (key < 0) { |
190 | key += AvFILL(av) + 1; |
191 | if (key < 0) |
192 | return 0; |
79072805 |
193 | } |
43fcc5d2 |
194 | if (SvREADONLY(av) && key >= AvFILL(av)) |
195 | croak(no_modify); |
49beac48 |
196 | if (!AvREAL(av) && AvREIFY(av)) |
a0d0e21e |
197 | av_reify(av); |
a0d0e21e |
198 | if (key > AvMAX(av)) |
199 | av_extend(av,key); |
463ee0b2 |
200 | ary = AvARRAY(av); |
a0d0e21e |
201 | if (AvFILL(av) < key) { |
202 | if (!AvREAL(av)) { |
11343788 |
203 | dTHR; |
7d55f622 |
204 | if (av == curstack && key > stack_sp - stack_base) |
a0d0e21e |
205 | stack_sp = stack_base + key; /* XPUSH in disguise */ |
206 | do |
207 | ary[++AvFILL(av)] = &sv_undef; |
208 | while (AvFILL(av) < key); |
79072805 |
209 | } |
a0d0e21e |
210 | AvFILL(av) = key; |
79072805 |
211 | } |
a0d0e21e |
212 | else if (AvREAL(av)) |
213 | SvREFCNT_dec(ary[key]); |
79072805 |
214 | ary[key] = val; |
8990e307 |
215 | if (SvSMAGICAL(av)) { |
a0d0e21e |
216 | if (val != &sv_undef) { |
217 | MAGIC* mg = SvMAGIC(av); |
218 | sv_magic(val, (SV*)av, toLOWER(mg->mg_type), 0, key); |
219 | } |
463ee0b2 |
220 | mg_set((SV*)av); |
221 | } |
79072805 |
222 | return &ary[key]; |
223 | } |
224 | |
225 | AV * |
8ac85365 |
226 | newAV(void) |
79072805 |
227 | { |
463ee0b2 |
228 | register AV *av; |
79072805 |
229 | |
a0d0e21e |
230 | av = (AV*)NEWSV(3,0); |
231 | sv_upgrade((SV *)av, SVt_PVAV); |
463ee0b2 |
232 | AvREAL_on(av); |
233 | AvALLOC(av) = 0; |
234 | SvPVX(av) = 0; |
235 | AvMAX(av) = AvFILL(av) = -1; |
236 | return av; |
79072805 |
237 | } |
238 | |
239 | AV * |
8ac85365 |
240 | av_make(register I32 size, register SV **strp) |
79072805 |
241 | { |
463ee0b2 |
242 | register AV *av; |
79072805 |
243 | register I32 i; |
244 | register SV** ary; |
245 | |
a0d0e21e |
246 | av = (AV*)NEWSV(8,0); |
247 | sv_upgrade((SV *) av,SVt_PVAV); |
a0d0e21e |
248 | AvFLAGS(av) = AVf_REAL; |
573fa4ea |
249 | if (size) { /* `defined' was returning undef for size==0 anyway. */ |
250 | New(4,ary,size,SV*); |
251 | AvALLOC(av) = ary; |
252 | SvPVX(av) = (char*)ary; |
253 | AvFILL(av) = size - 1; |
254 | AvMAX(av) = size - 1; |
255 | for (i = 0; i < size; i++) { |
256 | assert (*strp); |
257 | ary[i] = NEWSV(7,0); |
258 | sv_setsv(ary[i], *strp); |
259 | strp++; |
260 | } |
79072805 |
261 | } |
463ee0b2 |
262 | return av; |
79072805 |
263 | } |
264 | |
265 | AV * |
8ac85365 |
266 | av_fake(register I32 size, register SV **strp) |
79072805 |
267 | { |
463ee0b2 |
268 | register AV *av; |
79072805 |
269 | register SV** ary; |
270 | |
a0d0e21e |
271 | av = (AV*)NEWSV(9,0); |
272 | sv_upgrade((SV *)av, SVt_PVAV); |
79072805 |
273 | New(4,ary,size+1,SV*); |
463ee0b2 |
274 | AvALLOC(av) = ary; |
79072805 |
275 | Copy(strp,ary,size,SV*); |
a0d0e21e |
276 | AvFLAGS(av) = AVf_REIFY; |
463ee0b2 |
277 | SvPVX(av) = (char*)ary; |
278 | AvFILL(av) = size - 1; |
279 | AvMAX(av) = size - 1; |
79072805 |
280 | while (size--) { |
a0d0e21e |
281 | assert (*strp); |
282 | SvTEMP_off(*strp); |
79072805 |
283 | strp++; |
284 | } |
463ee0b2 |
285 | return av; |
79072805 |
286 | } |
287 | |
288 | void |
8ac85365 |
289 | av_clear(register AV *av) |
79072805 |
290 | { |
291 | register I32 key; |
a0d0e21e |
292 | SV** ary; |
79072805 |
293 | |
7d55f622 |
294 | #ifdef DEBUGGING |
295 | if (SvREFCNT(av) <= 0) { |
296 | warn("Attempt to clear deleted array"); |
297 | } |
298 | #endif |
a0d0e21e |
299 | if (!av || AvMAX(av) < 0) |
79072805 |
300 | return; |
301 | /*SUPPRESS 560*/ |
a0d0e21e |
302 | |
303 | if (AvREAL(av)) { |
304 | ary = AvARRAY(av); |
305 | key = AvFILL(av) + 1; |
306 | while (key) { |
307 | SvREFCNT_dec(ary[--key]); |
308 | ary[key] = &sv_undef; |
309 | } |
310 | } |
463ee0b2 |
311 | if (key = AvARRAY(av) - AvALLOC(av)) { |
312 | AvMAX(av) += key; |
a0d0e21e |
313 | SvPVX(av) = (char*)AvALLOC(av); |
79072805 |
314 | } |
463ee0b2 |
315 | AvFILL(av) = -1; |
fb73857a |
316 | |
317 | if (SvRMAGICAL(av)) |
318 | mg_clear((SV*)av); |
79072805 |
319 | } |
320 | |
321 | void |
8ac85365 |
322 | av_undef(register AV *av) |
79072805 |
323 | { |
324 | register I32 key; |
325 | |
463ee0b2 |
326 | if (!av) |
79072805 |
327 | return; |
328 | /*SUPPRESS 560*/ |
a0d0e21e |
329 | if (AvREAL(av)) { |
330 | key = AvFILL(av) + 1; |
331 | while (key) |
332 | SvREFCNT_dec(AvARRAY(av)[--key]); |
333 | } |
463ee0b2 |
334 | Safefree(AvALLOC(av)); |
335 | AvALLOC(av) = 0; |
336 | SvPVX(av) = 0; |
337 | AvMAX(av) = AvFILL(av) = -1; |
748a9306 |
338 | if (AvARYLEN(av)) { |
339 | SvREFCNT_dec(AvARYLEN(av)); |
340 | AvARYLEN(av) = 0; |
341 | } |
79072805 |
342 | } |
343 | |
a0d0e21e |
344 | void |
8ac85365 |
345 | av_push(register AV *av, SV *val) |
79072805 |
346 | { |
a0d0e21e |
347 | if (!av) |
348 | return; |
349 | av_store(av,AvFILL(av)+1,val); |
79072805 |
350 | } |
351 | |
352 | SV * |
8ac85365 |
353 | av_pop(register AV *av) |
79072805 |
354 | { |
355 | SV *retval; |
356 | |
a0d0e21e |
357 | if (!av || AvFILL(av) < 0) |
358 | return &sv_undef; |
43fcc5d2 |
359 | if (SvREADONLY(av)) |
360 | croak(no_modify); |
463ee0b2 |
361 | retval = AvARRAY(av)[AvFILL(av)]; |
a0d0e21e |
362 | AvARRAY(av)[AvFILL(av)--] = &sv_undef; |
8990e307 |
363 | if (SvSMAGICAL(av)) |
463ee0b2 |
364 | mg_set((SV*)av); |
79072805 |
365 | return retval; |
366 | } |
367 | |
368 | void |
8ac85365 |
369 | av_unshift(register AV *av, register I32 num) |
79072805 |
370 | { |
371 | register I32 i; |
372 | register SV **sstr,**dstr; |
373 | |
a0d0e21e |
374 | if (!av || num <= 0) |
79072805 |
375 | return; |
43fcc5d2 |
376 | if (SvREADONLY(av)) |
377 | croak(no_modify); |
49beac48 |
378 | if (!AvREAL(av) && AvREIFY(av)) |
379 | av_reify(av); |
a0d0e21e |
380 | i = AvARRAY(av) - AvALLOC(av); |
381 | if (i) { |
382 | if (i > num) |
383 | i = num; |
384 | num -= i; |
385 | |
386 | AvMAX(av) += i; |
387 | AvFILL(av) += i; |
388 | SvPVX(av) = (char*)(AvARRAY(av) - i); |
389 | } |
390 | if (num) { |
391 | av_extend(av,AvFILL(av)+num); |
392 | AvFILL(av) += num; |
463ee0b2 |
393 | dstr = AvARRAY(av) + AvFILL(av); |
79072805 |
394 | sstr = dstr - num; |
395 | #ifdef BUGGY_MSC5 |
396 | # pragma loop_opt(off) /* don't loop-optimize the following code */ |
397 | #endif /* BUGGY_MSC5 */ |
a0d0e21e |
398 | for (i = AvFILL(av) - num; i >= 0; --i) { |
79072805 |
399 | *dstr-- = *sstr--; |
400 | #ifdef BUGGY_MSC5 |
401 | # pragma loop_opt() /* loop-optimization back to command-line setting */ |
402 | #endif /* BUGGY_MSC5 */ |
403 | } |
a0d0e21e |
404 | while (num) |
405 | AvARRAY(av)[--num] = &sv_undef; |
79072805 |
406 | } |
407 | } |
408 | |
409 | SV * |
8ac85365 |
410 | av_shift(register AV *av) |
79072805 |
411 | { |
412 | SV *retval; |
413 | |
a0d0e21e |
414 | if (!av || AvFILL(av) < 0) |
415 | return &sv_undef; |
43fcc5d2 |
416 | if (SvREADONLY(av)) |
417 | croak(no_modify); |
463ee0b2 |
418 | retval = *AvARRAY(av); |
a0d0e21e |
419 | if (AvREAL(av)) |
420 | *AvARRAY(av) = &sv_undef; |
463ee0b2 |
421 | SvPVX(av) = (char*)(AvARRAY(av) + 1); |
422 | AvMAX(av)--; |
423 | AvFILL(av)--; |
8990e307 |
424 | if (SvSMAGICAL(av)) |
463ee0b2 |
425 | mg_set((SV*)av); |
79072805 |
426 | return retval; |
427 | } |
428 | |
429 | I32 |
8ac85365 |
430 | av_len(register AV *av) |
79072805 |
431 | { |
463ee0b2 |
432 | return AvFILL(av); |
79072805 |
433 | } |
434 | |
435 | void |
8ac85365 |
436 | av_fill(register AV *av, I32 fill) |
79072805 |
437 | { |
a0d0e21e |
438 | if (!av) |
439 | croak("panic: null array"); |
79072805 |
440 | if (fill < 0) |
441 | fill = -1; |
463ee0b2 |
442 | if (fill <= AvMAX(av)) { |
a0d0e21e |
443 | I32 key = AvFILL(av); |
444 | SV** ary = AvARRAY(av); |
445 | |
446 | if (AvREAL(av)) { |
447 | while (key > fill) { |
448 | SvREFCNT_dec(ary[key]); |
449 | ary[key--] = &sv_undef; |
450 | } |
451 | } |
452 | else { |
453 | while (key < fill) |
454 | ary[++key] = &sv_undef; |
455 | } |
456 | |
463ee0b2 |
457 | AvFILL(av) = fill; |
8990e307 |
458 | if (SvSMAGICAL(av)) |
463ee0b2 |
459 | mg_set((SV*)av); |
460 | } |
a0d0e21e |
461 | else |
462 | (void)av_store(av,fill,&sv_undef); |
79072805 |
463 | } |
c750a3ec |
464 | |
5d5aaa5e |
465 | |
466 | HV* |
467 | avhv_keys(AV *av) |
468 | { |
469 | SV **keysp; |
470 | HV *keys = Nullhv; |
471 | |
472 | keysp = av_fetch(av, 0, FALSE); |
473 | if (keysp) { |
d627ae4e |
474 | SV *sv = *keysp; |
475 | if (SvGMAGICAL(sv)) |
476 | mg_get(sv); |
477 | if (SvROK(sv)) { |
478 | sv = SvRV(sv); |
479 | if (SvTYPE(sv) == SVt_PVHV) |
480 | keys = (HV*)sv; |
5d5aaa5e |
481 | } |
482 | } |
483 | if (!keys) |
484 | croak("Can't coerce array into hash"); |
485 | return keys; |
486 | } |
487 | |
c750a3ec |
488 | SV** |
8ac85365 |
489 | avhv_fetch(AV *av, char *key, U32 klen, I32 lval) |
c750a3ec |
490 | { |
5d5aaa5e |
491 | SV **indsvp; |
492 | HV *keys = avhv_keys(av); |
c750a3ec |
493 | I32 ind; |
494 | |
5d5aaa5e |
495 | indsvp = hv_fetch(keys, key, klen, FALSE); |
c750a3ec |
496 | if (indsvp) { |
497 | ind = SvIV(*indsvp); |
498 | if (ind < 1) |
499 | croak("Bad index while coercing array into hash"); |
500 | } else { |
501 | if (!lval) |
502 | return 0; |
503 | |
504 | ind = AvFILL(av) + 1; |
5d5aaa5e |
505 | hv_store(keys, key, klen, newSViv(ind), 0); |
c750a3ec |
506 | } |
507 | return av_fetch(av, ind, lval); |
508 | } |
509 | |
510 | SV** |
8ac85365 |
511 | avhv_fetch_ent(AV *av, SV *keysv, I32 lval, U32 hash) |
97fcbf96 |
512 | { |
5d5aaa5e |
513 | SV **indsvp; |
514 | HV *keys = avhv_keys(av); |
97fcbf96 |
515 | HE *he; |
516 | I32 ind; |
517 | |
5d5aaa5e |
518 | he = hv_fetch_ent(keys, keysv, FALSE, hash); |
97fcbf96 |
519 | if (he) { |
520 | ind = SvIV(HeVAL(he)); |
521 | if (ind < 1) |
522 | croak("Bad index while coercing array into hash"); |
523 | } else { |
524 | if (!lval) |
525 | return 0; |
526 | |
527 | ind = AvFILL(av) + 1; |
5d5aaa5e |
528 | hv_store_ent(keys, keysv, newSViv(ind), 0); |
97fcbf96 |
529 | } |
530 | return av_fetch(av, ind, lval); |
531 | } |
532 | |
533 | SV** |
8ac85365 |
534 | avhv_store(AV *av, char *key, U32 klen, SV *val, U32 hash) |
c750a3ec |
535 | { |
5d5aaa5e |
536 | SV **indsvp; |
537 | HV *keys = avhv_keys(av); |
c750a3ec |
538 | I32 ind; |
539 | |
5d5aaa5e |
540 | indsvp = hv_fetch(keys, key, klen, FALSE); |
c750a3ec |
541 | if (indsvp) { |
542 | ind = SvIV(*indsvp); |
543 | if (ind < 1) |
544 | croak("Bad index while coercing array into hash"); |
545 | } else { |
546 | ind = AvFILL(av) + 1; |
5d5aaa5e |
547 | hv_store(keys, key, klen, newSViv(ind), hash); |
c750a3ec |
548 | } |
549 | return av_store(av, ind, val); |
550 | } |
551 | |
5bc6513d |
552 | SV** |
8ac85365 |
553 | avhv_store_ent(AV *av, SV *keysv, SV *val, U32 hash) |
5bc6513d |
554 | { |
5d5aaa5e |
555 | HV *keys = avhv_keys(av); |
5bc6513d |
556 | HE *he; |
557 | I32 ind; |
558 | |
5d5aaa5e |
559 | he = hv_fetch_ent(keys, keysv, FALSE, hash); |
5bc6513d |
560 | if (he) { |
561 | ind = SvIV(HeVAL(he)); |
562 | if (ind < 1) |
563 | croak("Bad index while coercing array into hash"); |
564 | } else { |
565 | ind = AvFILL(av) + 1; |
5d5aaa5e |
566 | hv_store_ent(keys, keysv, newSViv(ind), hash); |
5bc6513d |
567 | } |
568 | return av_store(av, ind, val); |
569 | } |
570 | |
c750a3ec |
571 | bool |
8ac85365 |
572 | avhv_exists_ent(AV *av, SV *keysv, U32 hash) |
97fcbf96 |
573 | { |
5d5aaa5e |
574 | HV *keys = avhv_keys(av); |
575 | return hv_exists_ent(keys, keysv, hash); |
97fcbf96 |
576 | } |
577 | |
578 | bool |
8ac85365 |
579 | avhv_exists(AV *av, char *key, U32 klen) |
c750a3ec |
580 | { |
5d5aaa5e |
581 | HV *keys = avhv_keys(av); |
582 | return hv_exists(keys, key, klen); |
c750a3ec |
583 | } |
584 | |
585 | /* avhv_delete leaks. Caller can re-index and compress if so desired. */ |
586 | SV * |
8ac85365 |
587 | avhv_delete(AV *av, char *key, U32 klen, I32 flags) |
c750a3ec |
588 | { |
5d5aaa5e |
589 | HV *keys = avhv_keys(av); |
c750a3ec |
590 | SV *sv; |
591 | SV **svp; |
592 | I32 ind; |
593 | |
5d5aaa5e |
594 | sv = hv_delete(keys, key, klen, 0); |
c750a3ec |
595 | if (!sv) |
596 | return Nullsv; |
597 | ind = SvIV(sv); |
598 | if (ind < 1) |
599 | croak("Bad index while coercing array into hash"); |
600 | svp = av_fetch(av, ind, FALSE); |
601 | if (!svp) |
602 | return Nullsv; |
603 | if (flags & G_DISCARD) { |
604 | sv = Nullsv; |
605 | SvREFCNT_dec(*svp); |
606 | } else { |
607 | sv = sv_2mortal(*svp); |
608 | } |
609 | *svp = &sv_undef; |
610 | return sv; |
611 | } |
612 | |
97fcbf96 |
613 | /* avhv_delete_ent leaks. Caller can re-index and compress if so desired. */ |
614 | SV * |
8ac85365 |
615 | avhv_delete_ent(AV *av, SV *keysv, I32 flags, U32 hash) |
97fcbf96 |
616 | { |
5d5aaa5e |
617 | HV *keys = avhv_keys(av); |
97fcbf96 |
618 | SV *sv; |
619 | SV **svp; |
620 | I32 ind; |
621 | |
5d5aaa5e |
622 | sv = hv_delete_ent(keys, keysv, 0, hash); |
97fcbf96 |
623 | if (!sv) |
624 | return Nullsv; |
625 | ind = SvIV(sv); |
626 | if (ind < 1) |
627 | croak("Bad index while coercing array into hash"); |
628 | svp = av_fetch(av, ind, FALSE); |
629 | if (!svp) |
630 | return Nullsv; |
631 | if (flags & G_DISCARD) { |
632 | sv = Nullsv; |
633 | SvREFCNT_dec(*svp); |
634 | } else { |
635 | sv = sv_2mortal(*svp); |
636 | } |
637 | *svp = &sv_undef; |
638 | return sv; |
639 | } |
640 | |
c750a3ec |
641 | I32 |
8ac85365 |
642 | avhv_iterinit(AV *av) |
c750a3ec |
643 | { |
5d5aaa5e |
644 | HV *keys = avhv_keys(av); |
645 | return hv_iterinit(keys); |
c750a3ec |
646 | } |
647 | |
648 | HE * |
8ac85365 |
649 | avhv_iternext(AV *av) |
c750a3ec |
650 | { |
5d5aaa5e |
651 | HV *keys = avhv_keys(av); |
652 | return hv_iternext(keys); |
c750a3ec |
653 | } |
654 | |
655 | SV * |
8ac85365 |
656 | avhv_iterval(AV *av, register HE *entry) |
c750a3ec |
657 | { |
5d5aaa5e |
658 | HV *keys = avhv_keys(av); |
c750a3ec |
659 | SV *sv; |
660 | I32 ind; |
661 | |
5d5aaa5e |
662 | sv = hv_iterval(keys, entry); |
c750a3ec |
663 | ind = SvIV(sv); |
664 | if (ind < 1) |
665 | croak("Bad index while coercing array into hash"); |
666 | return *av_fetch(av, ind, TRUE); |
667 | } |
668 | |
669 | SV * |
8ac85365 |
670 | avhv_iternextsv(AV *av, char **key, I32 *retlen) |
c750a3ec |
671 | { |
5d5aaa5e |
672 | HV *keys = avhv_keys(av); |
c750a3ec |
673 | HE *he; |
674 | SV *sv; |
675 | I32 ind; |
676 | |
5d5aaa5e |
677 | he = hv_iternext(keys); |
678 | if (!he) |
679 | return Nullsv; |
c750a3ec |
680 | *key = hv_iterkey(he, retlen); |
5d5aaa5e |
681 | sv = hv_iterval(keys, he); |
c750a3ec |
682 | ind = SvIV(sv); |
683 | if (ind < 1) |
684 | croak("Bad index while coercing array into hash"); |
685 | return *av_fetch(av, ind, TRUE); |
686 | } |