Commit | Line | Data |
646c0371 |
1 | #include "mouse.h" |
2 | |
73d8d597 |
3 | #define CHECK_INSTANCE(instance) STMT_START{ \ |
fcdc12ac |
4 | assert(instance); \ |
73d8d597 |
5 | if(!(SvROK(instance) && SvTYPE(SvRV(instance)) == SVt_PVHV)){ \ |
ef53a04b |
6 | croak("Invalid object instance: '%"SVf"'", instance); \ |
73d8d597 |
7 | } \ |
646c0371 |
8 | } STMT_END |
9 | |
646c0371 |
10 | |
11 | #define MOUSE_mg_attribute(mg) MOUSE_xa_attribute(MOUSE_mg_xa(mg)) |
12 | |
646c0371 |
13 | static MGVTBL mouse_accessor_vtbl; /* MAGIC identity */ |
14 | |
cc7cd81f |
15 | #define dMOUSE_self SV* const self = mouse_accessor_get_self(aTHX_ ax, items, cv) |
646c0371 |
16 | |
fc650569 |
17 | STATIC_INLINE SV* |
646c0371 |
18 | mouse_accessor_get_self(pTHX_ I32 const ax, I32 const items, CV* const cv) { |
646c0371 |
19 | if(items < 1){ |
20 | croak("Too few arguments for %s", GvNAME(CvGV(cv))); |
21 | } |
22 | |
23 | /* NOTE: If self has GETMAGIC, $self->accessor will invoke GETMAGIC |
24 | * before calling methods, so SvGETMAGIC(self) is not necessarily needed here. |
25 | */ |
26 | |
76770976 |
27 | return ST(0); |
646c0371 |
28 | } |
29 | |
30 | |
31 | CV* |
a17f6313 |
32 | mouse_accessor_generate(pTHX_ SV* const attr, XSUBADDR_t const accessor_impl){ |
0aad0266 |
33 | AV* const xa = mouse_get_xa(aTHX_ attr); |
646c0371 |
34 | CV* xsub; |
35 | MAGIC* mg; |
646c0371 |
36 | |
37 | xsub = newXS(NULL, accessor_impl, __FILE__); |
38 | sv_2mortal((SV*)xsub); |
39 | |
0aad0266 |
40 | mg = sv_magicext((SV*)xsub, MOUSE_xa_slot(xa), PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)xa, HEf_SVKEY); |
41 | |
4e7e3250 |
42 | MOUSE_mg_flags(mg) = (U16)MOUSE_xa_flags(xa); |
646c0371 |
43 | |
44 | /* NOTE: |
45 | * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx) |
46 | */ |
47 | CvXSUBANY(xsub).any_ptr = (void*)mg; |
48 | |
646c0371 |
49 | return xsub; |
50 | } |
51 | |
646c0371 |
52 | |
208ffaeb |
53 | #define PUSH_VALUE(value, flags) STMT_START { \ |
54 | if((flags) & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY){ \ |
55 | mouse_push_values(aTHX_ value, (flags)); \ |
56 | } \ |
57 | else{ \ |
58 | dSP; \ |
59 | XPUSHs(value ? value : &PL_sv_undef); \ |
60 | PUTBACK; \ |
61 | } \ |
62 | } STMT_END \ |
646c0371 |
63 | |
64 | /* pushes return values, does auto-deref if needed */ |
65 | static void |
66 | mouse_push_values(pTHX_ SV* const value, U16 const flags){ |
67 | dSP; |
68 | |
208ffaeb |
69 | assert( flags & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY ); |
646c0371 |
70 | |
208ffaeb |
71 | if(!(value && SvOK(value))){ |
72 | return; |
73 | } |
646c0371 |
74 | |
208ffaeb |
75 | if(flags & MOUSEf_TC_IS_ARRAYREF){ |
80aa5731 |
76 | AV* av; |
208ffaeb |
77 | I32 len; |
78 | I32 i; |
646c0371 |
79 | |
80aa5731 |
80 | if(!IsArrayRef(value)){ |
208ffaeb |
81 | croak("Mouse-panic: Not an ARRAY reference"); |
646c0371 |
82 | } |
646c0371 |
83 | |
80aa5731 |
84 | av = (AV*)SvRV(value); |
208ffaeb |
85 | len = av_len(av) + 1; |
86 | EXTEND(SP, len); |
87 | for(i = 0; i < len; i++){ |
88 | SV** const svp = av_fetch(av, i, FALSE); |
89 | PUSHs(svp ? *svp : &PL_sv_undef); |
646c0371 |
90 | } |
91 | } |
caf77af6 |
92 | else{ |
80aa5731 |
93 | HV* hv; |
208ffaeb |
94 | HE* he; |
95 | |
caf77af6 |
96 | assert(flags & MOUSEf_TC_IS_HASHREF); |
97 | |
80aa5731 |
98 | if(!IsHashRef(value)){ |
208ffaeb |
99 | croak("Mouse-panic: Not a HASH reference"); |
100 | } |
101 | |
80aa5731 |
102 | hv = (HV*)SvRV(value); |
208ffaeb |
103 | hv_iterinit(hv); |
104 | while((he = hv_iternext(hv))){ |
105 | EXTEND(SP, 2); |
106 | PUSHs(hv_iterkeysv(he)); |
107 | PUSHs(hv_iterval(hv, he)); |
108 | } |
646c0371 |
109 | } |
110 | |
111 | PUTBACK; |
112 | } |
113 | |
114 | static void |
115 | mouse_attr_get(pTHX_ SV* const self, MAGIC* const mg){ |
116 | U16 const flags = MOUSE_mg_flags(mg); |
646c0371 |
117 | SV* value; |
118 | |
4e7e3250 |
119 | value = get_slot(self, MOUSE_mg_slot(mg)); |
646c0371 |
120 | |
121 | /* check_lazy */ |
122 | if( !value && flags & MOUSEf_ATTR_IS_LAZY ){ |
4e7e3250 |
123 | value = mouse_xa_set_default(aTHX_ MOUSE_mg_xa(mg), self); |
646c0371 |
124 | } |
125 | |
208ffaeb |
126 | PUSH_VALUE(value, flags); |
646c0371 |
127 | } |
128 | |
129 | static void |
130 | mouse_attr_set(pTHX_ SV* const self, MAGIC* const mg, SV* value){ |
131 | U16 const flags = MOUSE_mg_flags(mg); |
132 | SV* const slot = MOUSE_mg_slot(mg); |
133 | |
134 | if(flags & MOUSEf_ATTR_HAS_TC){ |
4e7e3250 |
135 | value = mouse_xa_apply_type_constraint(aTHX_ MOUSE_mg_xa(mg), value, flags); |
646c0371 |
136 | } |
137 | |
ca8e67d6 |
138 | value = set_slot(self, slot, value); |
646c0371 |
139 | |
140 | if(flags & MOUSEf_ATTR_IS_WEAK_REF){ |
6fe2272b |
141 | weaken_slot(self, slot); |
646c0371 |
142 | } |
143 | |
144 | if(flags & MOUSEf_ATTR_HAS_TRIGGER){ |
145 | SV* const trigger = mcall0s(MOUSE_mg_attribute(mg), "trigger"); |
146 | dSP; |
147 | |
8ab2c6ab |
148 | /* NOTE: triggers can remove value, so |
149 | value must be copied here, |
150 | revealed by Net::Google::DataAPI (DANJOU). |
151 | */ |
152 | value = sv_mortalcopy(value); |
153 | |
646c0371 |
154 | PUSHMARK(SP); |
155 | EXTEND(SP, 2); |
156 | PUSHs(self); |
157 | PUSHs(value); |
158 | |
159 | PUTBACK; |
b3cd4c14 |
160 | call_sv_safe(trigger, G_VOID | G_DISCARD); |
646c0371 |
161 | /* need not SPAGAIN */ |
8ab2c6ab |
162 | |
163 | assert(SvTYPE(value) != SVTYPEMASK); |
646c0371 |
164 | } |
165 | |
208ffaeb |
166 | PUSH_VALUE(value, flags); |
646c0371 |
167 | } |
168 | |
30e11004 |
169 | XS(XS_Mouse_accessor) |
646c0371 |
170 | { |
171 | dVAR; dXSARGS; |
172 | dMOUSE_self; |
173 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
174 | |
175 | SP -= items; /* PPCODE */ |
176 | PUTBACK; |
177 | |
178 | if(items == 1){ /* reader */ |
179 | mouse_attr_get(aTHX_ self, mg); |
180 | } |
181 | else if (items == 2){ /* writer */ |
182 | mouse_attr_set(aTHX_ self, mg, ST(1)); |
183 | } |
184 | else{ |
185 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
186 | "Expected exactly one or two argument for an accessor"); |
187 | } |
188 | } |
189 | |
190 | |
30e11004 |
191 | XS(XS_Mouse_reader) |
646c0371 |
192 | { |
193 | dVAR; dXSARGS; |
194 | dMOUSE_self; |
195 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
196 | |
197 | if (items != 1) { |
198 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
199 | "Cannot assign a value to a read-only accessor"); |
200 | } |
201 | |
202 | SP -= items; /* PPCODE */ |
203 | PUTBACK; |
204 | |
205 | mouse_attr_get(aTHX_ self, mg); |
206 | } |
207 | |
30e11004 |
208 | XS(XS_Mouse_writer) |
646c0371 |
209 | { |
210 | dVAR; dXSARGS; |
211 | dMOUSE_self; |
212 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
213 | |
214 | if (items != 2) { |
215 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
216 | "Too few arguments for a write-only accessor"); |
217 | } |
218 | |
219 | SP -= items; /* PPCODE */ |
220 | PUTBACK; |
221 | |
222 | mouse_attr_set(aTHX_ self, mg, ST(1)); |
223 | } |
224 | |
225 | /* simple accessors */ |
226 | |
227 | /* |
228 | static MAGIC* |
229 | mouse_accessor_get_mg(pTHX_ CV* const xsub){ |
230 | return moose_mg_find(aTHX_ (SV*)xsub, &mouse_simple_accessor_vtbl, MOOSEf_DIE_ON_FAIL); |
231 | } |
232 | */ |
233 | |
234 | CV* |
a17f6313 |
235 | mouse_simple_accessor_generate(pTHX_ const char* const fq_name, const char* const key, I32 const keylen, XSUBADDR_t const accessor_impl, void* const dptr, I32 const dlen){ |
646c0371 |
236 | CV* const xsub = newXS((char*)fq_name, accessor_impl, __FILE__); |
237 | SV* const slot = newSVpvn_share(key, keylen, 0U); |
238 | MAGIC* mg; |
239 | |
240 | if(!fq_name){ |
241 | /* anonymous xsubs need sv_2mortal */ |
242 | sv_2mortal((SV*)xsub); |
243 | } |
244 | |
e058b279 |
245 | mg = sv_magicext((SV*)xsub, slot, PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)dptr, dlen); |
646c0371 |
246 | SvREFCNT_dec(slot); /* sv_magicext() increases refcnt in mg_obj */ |
e058b279 |
247 | if(dlen == HEf_SVKEY){ |
248 | SvREFCNT_dec(dptr); |
249 | } |
646c0371 |
250 | |
251 | /* NOTE: |
252 | * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx) |
253 | */ |
254 | CvXSUBANY(xsub).any_ptr = (void*)mg; |
255 | |
256 | return xsub; |
257 | } |
258 | |
30e11004 |
259 | XS(XS_Mouse_simple_reader) |
646c0371 |
260 | { |
261 | dVAR; dXSARGS; |
262 | dMOUSE_self; |
e058b279 |
263 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
646c0371 |
264 | SV* value; |
265 | |
266 | if (items != 1) { |
e058b279 |
267 | croak("Expected exactly one argument for a reader for '%"SVf"'", MOUSE_mg_slot(mg)); |
646c0371 |
268 | } |
269 | |
e058b279 |
270 | value = get_slot(self, MOUSE_mg_slot(mg)); |
2468f1d7 |
271 | if(!value) { |
272 | if(MOUSE_mg_ptr(mg)){ |
273 | /* the default value must be a SV */ |
274 | assert(MOUSE_mg_len(mg) == HEf_SVKEY); |
275 | value = (SV*)MOUSE_mg_ptr(mg); |
276 | } |
277 | else{ |
278 | value = &PL_sv_undef; |
279 | } |
280 | } |
281 | |
282 | ST(0) = value; |
646c0371 |
283 | XSRETURN(1); |
284 | } |
285 | |
286 | |
30e11004 |
287 | XS(XS_Mouse_simple_writer) |
646c0371 |
288 | { |
289 | dVAR; dXSARGS; |
290 | dMOUSE_self; |
291 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
292 | |
293 | if (items != 2) { |
294 | croak("Expected exactly two argument for a writer for '%"SVf"'", slot); |
295 | } |
296 | |
6fe2272b |
297 | ST(0) = set_slot(self, slot, ST(1)); |
646c0371 |
298 | XSRETURN(1); |
299 | } |
300 | |
30e11004 |
301 | XS(XS_Mouse_simple_clearer) |
646c0371 |
302 | { |
303 | dVAR; dXSARGS; |
304 | dMOUSE_self; |
305 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
306 | SV* value; |
307 | |
308 | if (items != 1) { |
309 | croak("Expected exactly one argument for a clearer for '%"SVf"'", slot); |
310 | } |
311 | |
6fe2272b |
312 | value = delete_slot(self, slot); |
646c0371 |
313 | ST(0) = value ? value : &PL_sv_undef; |
314 | XSRETURN(1); |
315 | } |
316 | |
30e11004 |
317 | XS(XS_Mouse_simple_predicate) |
646c0371 |
318 | { |
319 | dVAR; dXSARGS; |
320 | dMOUSE_self; |
321 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
322 | |
323 | if (items != 1) { |
324 | croak("Expected exactly one argument for a predicate for '%"SVf"'", slot); |
325 | } |
326 | |
6fe2272b |
327 | ST(0) = boolSV( has_slot(self, slot) ); |
646c0371 |
328 | XSRETURN(1); |
329 | } |
330 | |
76770976 |
331 | /* simple instance slot accessor (or Mouse::Meta::Instance) */ |
646c0371 |
332 | |
333 | SV* |
334 | mouse_instance_create(pTHX_ HV* const stash) { |
fcdc12ac |
335 | SV* instance; |
646c0371 |
336 | assert(stash); |
aa2d2e2c |
337 | assert(SvTYPE(stash) == SVt_PVHV); |
fcdc12ac |
338 | instance = sv_bless( newRV_noinc((SV*)newHV()), stash ); |
339 | return sv_2mortal(instance); |
646c0371 |
340 | } |
341 | |
342 | SV* |
343 | mouse_instance_clone(pTHX_ SV* const instance) { |
fcdc12ac |
344 | SV* proto; |
646c0371 |
345 | CHECK_INSTANCE(instance); |
fcdc12ac |
346 | assert(SvOBJECT(SvRV(instance))); |
347 | |
348 | proto = newRV_noinc((SV*)newHVhv((HV*)SvRV(instance))); |
349 | sv_bless(proto, SvSTASH(SvRV(instance))); |
350 | return sv_2mortal(proto); |
646c0371 |
351 | } |
352 | |
353 | bool |
354 | mouse_instance_has_slot(pTHX_ SV* const instance, SV* const slot) { |
646c0371 |
355 | assert(slot); |
356 | CHECK_INSTANCE(instance); |
357 | return hv_exists_ent((HV*)SvRV(instance), slot, 0U); |
358 | } |
359 | |
360 | SV* |
361 | mouse_instance_get_slot(pTHX_ SV* const instance, SV* const slot) { |
362 | HE* he; |
646c0371 |
363 | assert(slot); |
364 | CHECK_INSTANCE(instance); |
365 | he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U); |
366 | return he ? HeVAL(he) : NULL; |
367 | } |
368 | |
369 | SV* |
370 | mouse_instance_set_slot(pTHX_ SV* const instance, SV* const slot, SV* const value) { |
371 | HE* he; |
372 | SV* sv; |
646c0371 |
373 | assert(slot); |
374 | assert(value); |
375 | CHECK_INSTANCE(instance); |
376 | he = hv_fetch_ent((HV*)SvRV(instance), slot, TRUE, 0U); |
377 | sv = HeVAL(he); |
957474ad |
378 | sv_setsv(sv, value); |
379 | SvSETMAGIC(sv); |
646c0371 |
380 | return sv; |
381 | } |
382 | |
383 | SV* |
384 | mouse_instance_delete_slot(pTHX_ SV* const instance, SV* const slot) { |
385 | assert(instance); |
386 | assert(slot); |
387 | CHECK_INSTANCE(instance); |
388 | return hv_delete_ent((HV*)SvRV(instance), slot, 0, 0U); |
389 | } |
390 | |
391 | void |
392 | mouse_instance_weaken_slot(pTHX_ SV* const instance, SV* const slot) { |
393 | HE* he; |
646c0371 |
394 | assert(slot); |
395 | CHECK_INSTANCE(instance); |
396 | he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U); |
397 | if(he){ |
398 | sv_rvweaken(HeVAL(he)); |
399 | } |
400 | } |
346a3ab8 |
401 | |
646c0371 |
402 | MODULE = Mouse::Meta::Method::Accessor::XS PACKAGE = Mouse::Meta::Method::Accessor::XS |
403 | |
404 | PROTOTYPES: DISABLE |
405 | VERSIONCHECK: DISABLE |
406 | |
407 | CV* |
408 | _generate_accessor(klass, SV* attr, metaclass) |
409 | CODE: |
410 | { |
a17f6313 |
411 | RETVAL = mouse_accessor_generate(aTHX_ attr, XS_Mouse_accessor); |
646c0371 |
412 | } |
413 | OUTPUT: |
414 | RETVAL |
415 | |
416 | CV* |
417 | _generate_reader(klass, SV* attr, metaclass) |
418 | CODE: |
419 | { |
a17f6313 |
420 | RETVAL = mouse_accessor_generate(aTHX_ attr, XS_Mouse_reader); |
646c0371 |
421 | } |
422 | OUTPUT: |
423 | RETVAL |
424 | |
425 | CV* |
426 | _generate_writer(klass, SV* attr, metaclass) |
427 | CODE: |
428 | { |
a17f6313 |
429 | RETVAL = mouse_accessor_generate(aTHX_ attr, XS_Mouse_writer); |
646c0371 |
430 | } |
431 | OUTPUT: |
432 | RETVAL |
433 | |
434 | CV* |
435 | _generate_clearer(klass, SV* attr, metaclass) |
436 | CODE: |
437 | { |
06afbf31 |
438 | SV* const slot = mcall0(attr, mouse_name); |
646c0371 |
439 | STRLEN len; |
440 | const char* const pv = SvPV_const(slot, len); |
a17f6313 |
441 | RETVAL = mouse_simple_accessor_generate(aTHX_ NULL, pv, len, XS_Mouse_simple_clearer, NULL, 0); |
646c0371 |
442 | } |
443 | OUTPUT: |
444 | RETVAL |
445 | |
446 | CV* |
447 | _generate_predicate(klass, SV* attr, metaclass) |
448 | CODE: |
449 | { |
06afbf31 |
450 | SV* const slot = mcall0(attr, mouse_name); |
646c0371 |
451 | STRLEN len; |
452 | const char* const pv = SvPV_const(slot, len); |
a17f6313 |
453 | RETVAL = mouse_simple_accessor_generate(aTHX_ NULL, pv, len, XS_Mouse_simple_predicate, NULL, 0); |
646c0371 |
454 | } |
455 | OUTPUT: |
456 | RETVAL |
457 | |