Commit | Line | Data |
1ea12c91 |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
4 | |
d0957eef |
5 | #define NEED_grok_number |
6 | #define NEED_grok_numeric_radix |
035fd0c4 |
7 | #define NEED_newRV_noinc |
8 | #define NEED_newSVpvn_share |
9 | #define NEED_sv_2pv_flags |
10 | #include "ppport.h" |
11 | |
12 | #ifndef XSPROTO |
13 | #define XSPROTO(name) void name(pTHX_ CV* cv) |
14 | #endif |
15 | |
16 | #ifndef gv_stashpvs |
70a91f79 |
17 | #define gv_stashpvs(x, y) Perl_gv_stashpvn(aTHX_ STR_WITH_LEN(x), y) |
035fd0c4 |
18 | #endif |
19 | |
1ea12c91 |
20 | /* FIXME |
1ea12c91 |
21 | * delegations and attribute helpers: |
22 | * |
23 | * typedef struct { |
de2f2e97 |
24 | * ATTR *attr; |
1ea12c91 |
25 | * pv *method; |
26 | * } delegation; |
27 | * |
28 | * typedef struct { |
de2f2e97 |
29 | * ATTR *attr; |
1ea12c91 |
30 | * I32 *type; // hash, array, whatever + vtable for operation |
31 | * } attributehelper; |
32 | */ |
33 | |
de2f2e97 |
34 | |
2cd9d2ba |
35 | |
36 | |
37 | |
38 | |
39 | |
40 | /* These two functions attach magic with no behavior to an SV. |
41 | * |
42 | * The stashed value is reference counted, and is destroyed when it's parent |
43 | * object is destroyed. |
44 | * |
45 | * This is used to keep a reference the the meta attribute from a generated |
46 | * method, and to cache the C struct based wrapper attached to the meta |
47 | * instance. |
48 | */ |
49 | |
de2f2e97 |
50 | STATIC MGVTBL null_mg_vtbl = { |
51 | NULL, /* get */ |
52 | NULL, /* set */ |
53 | NULL, /* len */ |
54 | NULL, /* clear */ |
55 | NULL, /* free */ |
56 | #if MGf_COPY |
57 | NULL, /* copy */ |
58 | #endif /* MGf_COPY */ |
59 | #if MGf_DUP |
60 | NULL, /* dup */ |
61 | #endif /* MGf_DUP */ |
62 | #if MGf_LOCAL |
63 | NULL, /* local */ |
64 | #endif /* MGf_LOCAL */ |
65 | }; |
66 | |
f253044f |
67 | STATIC MAGIC *stash_in_mg (pTHX_ SV *sv, SV *obj) { |
68 | MAGIC *mg = sv_magicext(sv, obj, PERL_MAGIC_ext, &null_mg_vtbl, NULL, 0 ); |
69 | mg->mg_flags |= MGf_REFCOUNTED; |
70 | |
71 | return mg; |
72 | } |
73 | |
74 | STATIC SV *get_stashed_in_mg(pTHX_ SV *sv) { |
85ddc685 |
75 | MAGIC *mg; |
f253044f |
76 | |
77 | if (SvTYPE(sv) >= SVt_PVMG) { |
78 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
79 | if ((mg->mg_type == PERL_MAGIC_ext) && (mg->mg_virtual == &null_mg_vtbl)) |
80 | break; |
81 | } |
82 | if (mg) |
83 | return mg->mg_obj; |
84 | } |
85 | |
86 | return NULL; |
87 | } |
de2f2e97 |
88 | |
2cd9d2ba |
89 | |
90 | |
91 | |
92 | |
93 | |
94 | |
95 | |
96 | |
97 | /* The folloing data structures deal with type constraints */ |
98 | |
99 | /* this is an enum of the various kinds of constraint checking an attribute can |
100 | * have. |
101 | * |
102 | * tc_cv is the fallback behavior (simply applying the |
103 | * ->_compiled_type_constraint to the value, but other more optimal checks are |
104 | * implemented too. */ |
105 | |
106 | typedef enum { |
107 | tc_none = 0, /* no type checking */ |
108 | tc_type, /* a builtin type to be checked by check_sv_type */ |
109 | tc_stash, /* a stash for a class, implements TypeConstraint::Class by comparing SvSTASH and then invoking C<isa> if necessary */ |
110 | tc_cv, /* applies a code reference to the value and checks for truth */ |
111 | tc_fptr, /* apply a C function pointer */ |
5b264806 |
112 | tc_enum /* TODO check that the value is in an allowed set of values (strings) */ |
2cd9d2ba |
113 | } tc_kind; |
114 | |
115 | /* this is a enum of builtin type check. They are handled in a switch statement |
116 | * in check_sv_type */ |
de2f2e97 |
117 | typedef enum { |
4c6fbfb1 |
118 | Any, /* or item, or bool */ |
119 | Undef, |
120 | Defined, |
121 | Str, /* or value */ |
122 | Num, |
123 | Int, |
124 | GlobRef, /* SVt_PVGV */ |
125 | ArrayRef, /* SVt_PVAV */ |
126 | HashRef, /* SVt_PVHV */ |
127 | CodeRef, /* SVt_PVCV */ |
128 | Ref, |
129 | ScalarRef, |
2cd9d2ba |
130 | FileHandle, /* TODO */ |
4c6fbfb1 |
131 | RegexpRef, |
132 | Object, |
2cd9d2ba |
133 | Role, /* TODO */ |
5b264806 |
134 | ClassName |
de2f2e97 |
135 | } TC; |
136 | |
2cd9d2ba |
137 | /* auxillary pointer/int union used for constraint checking */ |
de2f2e97 |
138 | typedef union { |
2cd9d2ba |
139 | TC type; /* the builtin type number for tc_type */ |
140 | SV *sv; /* the cv for tc_cv, or the stash for tc_stash */ |
141 | OP *op; /* TODO not used */ |
142 | bool (*fptr)(pTHX_ SV *type_constraint, SV *sv); /* the function pointer for tc_fptr FIXME aux data? */ |
4c6fbfb1 |
143 | } TC_CHECK; |
144 | |
2cd9d2ba |
145 | |
146 | |
147 | |
148 | |
149 | |
150 | /* The folloing data structures deal with type default value generation */ |
151 | |
152 | /* This is an enum for the various types of default value behaviors an |
153 | * attribute can have */ |
de2f2e97 |
154 | |
155 | typedef enum { |
2cd9d2ba |
156 | default_none = 0, /* no default value */ |
157 | default_normal, /* code reference or scalar */ |
158 | default_builder, /* builder method */ |
5b264806 |
159 | default_type /* TODO enumerated type optimization (will call newHV, newAV etc to avoid calling a code ref for these simple cases) */ |
de2f2e97 |
160 | } default_kind; |
161 | |
2cd9d2ba |
162 | typedef union { |
163 | SV *sv; /* The default value, or a code ref to generate one. If builder then this sv is applied as a method (stringified) */ |
164 | U32 type; /* TODO for default_type, should probably be one of SVt_PVAV/SVt_PVHV */ |
165 | } DEFAULT; |
166 | |
167 | |
168 | |
169 | |
170 | |
171 | |
172 | /* the ATTR struct contains all the meta data for a Moose::Meta::Attribute for |
173 | * a given meta instance |
174 | * |
175 | * flags determines the various behaviors |
176 | * |
177 | * This supports only one slot per attribute in the current implementation, but |
178 | * slot_sv could contain an array |
179 | * |
180 | * A list of XSUBs that rely on this attr struct are cross indexed in the cvs |
181 | * array, so that when the meta instance is destroyed the XSANY field will be |
182 | * cleared. This is done in delete_mi |
183 | * */ |
184 | |
1ea12c91 |
185 | typedef struct { |
2cd9d2ba |
186 | /* pointer to the MI this attribute is a part of the meta instance struct */ |
de2f2e97 |
187 | struct mi *mi; |
188 | |
189 | U32 flags; /* slot type, TC behavior, coerce, weaken, (no default | default, builder + lazy), auto_deref */ |
190 | |
191 | /* slot access fields */ |
2cd9d2ba |
192 | SV *slot_sv; /* value of the slot (currently always slot name) */ |
193 | U32 slot_u32; /* for optimized access (precomputed hash, possibly something else) */ |
de2f2e97 |
194 | |
f55aeea0 |
195 | SV *init_arg_sv; |
196 | U32 init_arg_u32; |
197 | |
de2f2e97 |
198 | DEFAULT def; /* cv, value or other, depending on flags */ |
199 | |
2cd9d2ba |
200 | TC_CHECK tc_check; /* see TC_CHECK*/ |
201 | SV *type_constraint; /* Moose::Meta::TypeConstraint object */ |
de2f2e97 |
202 | |
a0c236f1 |
203 | CV *trigger; |
204 | CV *initializer; |
205 | CV *writer; /* used by the initializer */ |
de2f2e97 |
206 | |
2cd9d2ba |
207 | SV *meta_attr; /* the Moose::Meta::Attribute */ |
208 | AV *cvs; /* an array of CVs which use this attr, see delete_mi */ |
de2f2e97 |
209 | } ATTR; |
210 | |
2cd9d2ba |
211 | /* the flags integer is mapped as follows |
212 | * instance misc reading writing |
de2f2e97 |
213 | * 00000000 00000000 00000000 00000000 |
2cd9d2ba |
214 | * writing |
7ce1a351 |
215 | * ^ trigger |
216 | * ^ weak |
45922f54 |
217 | * ^ tc.sv is refcounted |
de2f2e97 |
218 | * ^^^ tc_kind |
219 | * ^ coerce |
2cd9d2ba |
220 | * |
221 | * reading |
de2f2e97 |
222 | * ^^^ default_kind |
223 | * ^ lazy |
45922f54 |
224 | * ^ def.sv is refcounted |
2cd9d2ba |
225 | * |
226 | * misc |
227 | * ^ attr is required TODO |
228 | * |
229 | * flags having to do with the instance layout (TODO, only hash supported for now) |
de2f2e97 |
230 | * ^^^^^^^ if 0 then nothing special (just hash)? FIXME TBD |
231 | */ |
232 | |
233 | #define ATTR_INSTANCE_MASK 0xff000000 |
234 | #define ATTR_READING_MASK 0x0000ff00 |
235 | #define ATTR_WRITING_MASK 0x000000ff |
236 | |
237 | #define ATTR_MASK_TYPE 0x7 |
238 | |
239 | #define ATTR_MASK_DEFAULT 0x700 |
fe0194bf |
240 | #define ATTR_SHIFT_DEFAULT 8 |
de2f2e97 |
241 | |
242 | #define ATTR_LAZY 0x800 |
fe0194bf |
243 | #define ATTR_DEFREFCNT 0x1000 |
de2f2e97 |
244 | |
7ce1a351 |
245 | #define ATTR_COERCE 0x8 |
246 | #define ATTR_TCREFCNT 0x10 |
247 | #define ATTR_WEAK 0x20 |
248 | #define ATTR_TRIGGER 0x40 |
de2f2e97 |
249 | |
250 | #define ATTR_ISWEAK(attr) ( attr->flags & ATTR_WEAK ) |
251 | #define ATTR_ISLAZY(attr) ( attr->flags & ATTR_LAZY ) |
252 | #define ATTR_ISCOERCE(attr) ( attr->flags & ATTR_COERCE ) |
1ea12c91 |
253 | |
de2f2e97 |
254 | #define ATTR_TYPE(f) ( attr->flags & 0x7 ) |
255 | #define ATTR_DEFAULT(f) ( ( attr->flags & ATTR_MASK_DEFAULT ) >> ATTR_SHIFT_DEFAULT ) |
1ea12c91 |
256 | |
de2f2e97 |
257 | #define ATTR_DUMB_READER(attr) !ATTR_IS_LAZY(attr) |
258 | #define ATTR_DUMB_WRITER(attr) ( ( attr->flags & ATTR_WRITING_MASK ) == 0 ) |
259 | #define ATTR_DUMB_INSTANCE(attr) ( ( attr->flags & ATTR_INSTANCE_MASK ) == 0 ) |
1ea12c91 |
260 | |
de2f2e97 |
261 | |
262 | |
2cd9d2ba |
263 | /* This unused (TODO) vtable will implement the meta instance protocol in terms |
264 | * of function pointers to allow the XS accessors to be used with custom meta |
265 | * instances in the future. |
266 | * |
267 | * We'll need to define a default instance of this vtable that uses call_sv, |
268 | * too. */ |
269 | |
270 | /* FIXME define a vtable that does call_sv for fallback meta instance protocol */ |
de2f2e97 |
271 | typedef struct { |
272 | SV * (*get)(pTHX_ SV *self, ATTR *attr); |
273 | void (*set)(pTHX_ SV *self, ATTR *attr, SV *value); |
274 | bool * (*has)(pTHX_ SV *self, ATTR *attr); |
275 | SV * (*delete)(pTHX_ SV *self, ATTR *attr); |
276 | } instance_vtbl; |
277 | |
2cd9d2ba |
278 | /* TODO this table describes the instance layout of the object. Not yet |
279 | * implemented */ |
de2f2e97 |
280 | typedef enum { |
281 | hash = 0, |
282 | |
283 | /* these are not yet implemented */ |
284 | array, |
285 | fptr, |
286 | cv, |
5b264806 |
287 | judy |
de2f2e97 |
288 | } instance_types; |
289 | |
2cd9d2ba |
290 | |
291 | /* this struct models the meta instance *and* meta attributes simultaneously. |
292 | * It is a cache of the meta attribute behaviors for a given class or subclass |
293 | * and can be parametrized on that level |
294 | * |
295 | * |
296 | * An object pointing to this structure is kept in a refcounted magic inside |
297 | * the meta instance it corresponds to. On C<invalidate_meta_instance> the meta |
298 | * instance is destroyed, causing the proxy object to be destroyed, deleting |
299 | * this structure, clearing the XSANY of all dependent attribute methods. |
300 | * |
301 | * The next invocation of an attribute method will eventually call get_attr, |
302 | * which will call C<get_meta_instance> on the metaclass (recreating it in the |
303 | * Class::MOP level), and cache a new MI struct inside it. Subsequent |
304 | * invocations of get_attr will then search the MI for an ATTR matching the |
305 | * meta_attribute of the attribute method */ |
de2f2e97 |
306 | typedef struct mi { |
de2f2e97 |
307 | HV *stash; |
308 | |
309 | /* slot access method */ |
2cd9d2ba |
310 | instance_types type; /* TODO only hashes supported currently */ |
311 | instance_vtbl *vtbl; /* TODO */ |
de2f2e97 |
312 | |
313 | /* attr descriptors */ |
314 | I32 num_attrs; |
315 | ATTR *attrs; |
316 | } MI; |
317 | |
318 | |
4c6fbfb1 |
319 | |
320 | |
2cd9d2ba |
321 | |
322 | |
323 | |
324 | |
325 | /* these functions implement type constraint checking */ |
326 | |
327 | /* checks that the SV is a scalar ref */ |
4c6fbfb1 |
328 | STATIC bool check_is_scalar_ref(SV *sv) { |
329 | if( SvROK(sv) ) { |
330 | switch (SvTYPE(SvRV(sv))) { |
331 | case SVt_IV: |
332 | case SVt_NV: |
333 | case SVt_PV: |
334 | case SVt_NULL: |
335 | return 1; |
336 | break; |
337 | default: |
338 | return 0; |
339 | } |
340 | } |
341 | return 0; |
342 | } |
343 | |
2cd9d2ba |
344 | /* checks that the SV is a ref to a certain SvTYPE, where type is in the table |
345 | * above */ |
4c6fbfb1 |
346 | STATIC bool check_reftype(TC type, SV *sv) { |
347 | int svt; |
348 | |
349 | if ( !SvROK(sv) ) |
350 | return 0; |
351 | |
352 | switch (type) { |
353 | case GlobRef: |
354 | svt = SVt_PVGV; |
355 | break; |
356 | case ArrayRef: |
357 | svt = SVt_PVAV; |
358 | break; |
359 | case HashRef: |
360 | svt = SVt_PVHV; |
361 | break; |
362 | case CodeRef: |
363 | svt = SVt_PVCV; |
364 | break; |
85ddc685 |
365 | default: |
366 | croak("not a reftype %d\n", type); |
4c6fbfb1 |
367 | } |
368 | |
160f9ca7 |
369 | return SvTYPE(SvRV(sv)) == svt; |
4c6fbfb1 |
370 | } |
371 | |
2cd9d2ba |
372 | /* checks whether an SV is of a certain class |
373 | * SvSTASH is first compared by pointer for efficiency */ |
7ce1a351 |
374 | STATIC bool check_sv_class(pTHX_ HV *stash, SV *sv) { |
4c6fbfb1 |
375 | dSP; |
376 | bool ret; |
7ce1a351 |
377 | SV *rv; |
4c6fbfb1 |
378 | |
379 | if (!sv) |
380 | return 0; |
381 | SvGETMAGIC(sv); |
382 | if (!SvROK(sv)) |
383 | return 0; |
7ce1a351 |
384 | rv = (SV*)SvRV(sv); |
385 | if (!SvOBJECT(rv)) |
4c6fbfb1 |
386 | return 0; |
7ce1a351 |
387 | if (SvSTASH(rv) == stash) |
4c6fbfb1 |
388 | return 1; |
389 | |
390 | ENTER; |
391 | SAVETMPS; |
392 | PUSHMARK(SP); |
393 | XPUSHs(sv); |
7ce1a351 |
394 | XPUSHs(sv_2mortal(newSVpv(HvNAME_get(stash), 0))); |
4c6fbfb1 |
395 | PUTBACK; |
396 | |
397 | call_method("isa", G_SCALAR); |
398 | |
399 | SPAGAIN; |
400 | ret = SvTRUE(TOPs); |
401 | |
402 | FREETMPS; |
403 | LEAVE; |
404 | |
405 | return ret; |
406 | } |
407 | |
2cd9d2ba |
408 | /* checks whether SV of of a known simple type. Most of the non parametrized |
409 | * Moose core types are implemented here */ |
4c6fbfb1 |
410 | STATIC bool check_sv_type (TC type, SV *sv) { |
411 | if (!sv) |
412 | return 0; |
160f9ca7 |
413 | |
8a73f796 |
414 | SvGETMAGIC(sv); |
415 | |
4c6fbfb1 |
416 | switch (type) { |
417 | case Any: |
418 | return 1; |
419 | break; |
420 | case Undef: |
421 | return !SvOK(sv); |
422 | break; |
423 | case Defined: |
424 | return SvOK(sv); |
425 | break; |
426 | case Str: |
427 | return (SvOK(sv) && !SvROK(sv)); |
160f9ca7 |
428 | case Num: |
429 | #if (PERL_VERSION < 8) || (PERL_VERSION == 8 && PERL_SUBVERSION <5) |
430 | if (!SvPOK(sv) && !SvPOKp(sv)) |
431 | return SvFLAGS(sv) & (SVf_NOK|SVp_NOK|SVf_IOK|SVp_IOK); |
432 | else |
433 | #endif |
434 | return looks_like_number(sv); |
435 | break; |
436 | case Int: |
437 | if ( SvIOK(sv) ) { |
438 | return 1; |
439 | } else if ( SvPOK(sv) ) { |
160f9ca7 |
440 | STRLEN len; |
441 | char *pv = SvPV(sv, len); |
4d0ab1b9 |
442 | int flags = grok_number(pv, len, NULL); |
443 | return ( flags && !(flags & IS_NUMBER_NOT_INT) ); |
160f9ca7 |
444 | } |
445 | return 0; |
446 | break; |
4c6fbfb1 |
447 | case Ref: |
448 | return SvROK(sv); |
449 | break; |
450 | case ScalarRef: |
451 | return check_is_scalar_ref(sv); |
452 | break; |
453 | case ArrayRef: |
454 | case HashRef: |
455 | case CodeRef: |
456 | case GlobRef: |
457 | return check_reftype(type, sv); |
458 | break; |
3c63e75d |
459 | case RegexpRef: |
4c6fbfb1 |
460 | case Object: |
8a73f796 |
461 | /* not using sv_isobject to avoid repeated get magic */ |
462 | if ( SvROK(sv) ) { |
463 | SV *rv = SvRV(sv); |
464 | if ( SvOBJECT(rv) ) { |
465 | char *name = HvNAME_get(SvSTASH(SvRV(sv))); |
db87359d |
466 | if ( name ) { |
467 | bool is_regexp = strEQ("Regexp", name); |
468 | return ( (type == RegexpRef) ^ !is_regexp ); |
469 | } |
8a73f796 |
470 | } |
9fad6c09 |
471 | } |
472 | return 0; |
4c6fbfb1 |
473 | break; |
160f9ca7 |
474 | case ClassName: |
7ce1a351 |
475 | if ( SvOK(sv) && !SvROK(sv) ) { |
160f9ca7 |
476 | STRLEN len; |
477 | char *pv; |
478 | pv = SvPV(sv, len); |
479 | return ( gv_stashpvn(pv, len, 0) != NULL ); |
160f9ca7 |
480 | } |
7ce1a351 |
481 | return 0; |
482 | break; |
4c6fbfb1 |
483 | case FileHandle: |
484 | croak("todo"); |
485 | break; |
486 | default: |
487 | croak("todo"); |
488 | } |
489 | |
490 | return 0; |
491 | } |
492 | |
2cd9d2ba |
493 | /* invoke a CV on an SV and return SvTRUE of the result */ |
45922f54 |
494 | STATIC bool check_sv_cv (pTHX_ SV *cv, SV *sv) { |
495 | bool ret; |
496 | dSP; |
497 | |
498 | ENTER; |
499 | SAVETMPS; |
500 | PUSHMARK(SP); |
501 | XPUSHs(sv); |
502 | PUTBACK; |
503 | |
504 | call_sv(cv, G_SCALAR); |
505 | |
506 | SPAGAIN; |
507 | ret = SvTRUE(POPs); |
508 | |
509 | PUTBACK; |
510 | FREETMPS; |
511 | LEAVE; |
512 | |
513 | return ret; |
514 | } |
515 | |
2cd9d2ba |
516 | /* checks the type constraint for an SV based on the type constraint kind */ |
160f9ca7 |
517 | STATIC bool check_type_constraint(pTHX_ tc_kind kind, TC_CHECK tc_check, SV *type_constraint, SV *sv) { |
4c6fbfb1 |
518 | switch (kind) { |
519 | case tc_none: |
520 | return 1; |
521 | break; |
522 | case tc_type: |
523 | return check_sv_type(tc_check.type, sv); |
524 | break; |
525 | case tc_stash: |
7ce1a351 |
526 | return check_sv_class(aTHX_ (HV *)tc_check.sv, sv); |
4c6fbfb1 |
527 | break; |
4c6fbfb1 |
528 | case tc_fptr: |
529 | return tc_check.fptr(aTHX_ type_constraint, sv); |
530 | break; |
531 | case tc_cv: |
45922f54 |
532 | return check_sv_cv(aTHX_ tc_check.sv, sv); |
533 | break; |
85ddc685 |
534 | case tc_enum: |
535 | croak("todo\n"); |
536 | break; |
4c6fbfb1 |
537 | } |
538 | |
539 | croak("todo"); |
540 | return 0; |
541 | } |
542 | |
543 | |
2cd9d2ba |
544 | /* end of type constraint checking functions */ |
545 | |
546 | |
547 | |
548 | |
549 | |
550 | |
551 | |
552 | |
553 | |
554 | /* Initialize the ATTR structure using positional arguments from Perl space. */ |
555 | |
160f9ca7 |
556 | STATIC void init_attr (MI *mi, ATTR *attr, AV *desc) { |
557 | U32 flags = 0; |
f55aeea0 |
558 | U32 slot_hash, init_arg_hash; |
559 | STRLEN slot_len, init_arg_len; |
560 | char *slot_pv, *init_arg_pv; |
160f9ca7 |
561 | I32 ix = av_len(desc); |
562 | SV **params = AvARRAY(desc); |
563 | SV *tc; |
f55aeea0 |
564 | SV *slot_sv; |
565 | SV *init_arg_sv; |
de2f2e97 |
566 | |
567 | attr->mi = mi; |
568 | |
f55aeea0 |
569 | if ( ix != 13 ) |
9fad6c09 |
570 | croak("wrong number of args (%d != 14)", (int)ix + 1); |
de2f2e97 |
571 | |
160f9ca7 |
572 | for ( ; ix >= 0; ix-- ) { |
573 | if ( !params[ix] || params[ix] == &PL_sv_undef ) |
574 | croak("bad params"); |
575 | } |
576 | |
2cd9d2ba |
577 | |
578 | |
579 | /* handle attribute slot array */ |
580 | |
160f9ca7 |
581 | if ( !SvROK(params[1]) || SvTYPE(SvRV(params[1])) != SVt_PVAV ) |
582 | croak("slots is not an array"); |
de2f2e97 |
583 | |
160f9ca7 |
584 | if ( av_len((AV *)SvRV(params[1])) != 0 ) |
585 | croak("Only unary slots are supported at the moment"); |
1ea12c91 |
586 | |
160f9ca7 |
587 | /* calculate a hash from the slot */ |
588 | /* FIXME arrays etc should also be supported */ |
f55aeea0 |
589 | slot_sv = *av_fetch((AV *)SvRV(params[1]), 0, 0); |
590 | slot_pv = SvPV(slot_sv, slot_len); |
591 | PERL_HASH(slot_hash, slot_pv, slot_len); |
1ea12c91 |
592 | |
de2f2e97 |
593 | |
f55aeea0 |
594 | init_arg_sv = params[13]; |
595 | init_arg_pv = SvPV(init_arg_sv, init_arg_len); |
596 | PERL_HASH(init_arg_hash, init_arg_pv, init_arg_len); |
2cd9d2ba |
597 | |
598 | |
599 | /* FIXME better organize these, positionals suck */ |
160f9ca7 |
600 | if ( SvTRUE(params[2]) ) |
601 | flags |= ATTR_WEAK; |
602 | |
603 | if ( SvTRUE(params[3]) ) |
604 | flags |= ATTR_COERCE; |
de2f2e97 |
605 | |
160f9ca7 |
606 | if ( SvTRUE(params[4]) ) |
607 | flags |= ATTR_LAZY; |
de2f2e97 |
608 | |
2cd9d2ba |
609 | |
610 | |
611 | /* type constraint data */ |
612 | |
160f9ca7 |
613 | tc = params[5]; |
de2f2e97 |
614 | |
160f9ca7 |
615 | if ( SvOK(tc) ) { |
616 | int tc_kind = SvIV(params[6]); |
617 | SV *data = params[7]; |
618 | |
619 | switch (tc_kind) { |
160f9ca7 |
620 | case tc_type: |
621 | attr->tc_check.type = SvIV(data); |
622 | break; |
7ce1a351 |
623 | case tc_stash: |
624 | flags |= ATTR_TCREFCNT; |
625 | attr->tc_check.sv = (SV *)gv_stashsv(data, 0); |
626 | break; |
160f9ca7 |
627 | case tc_cv: |
7ce1a351 |
628 | flags |= ATTR_TCREFCNT; |
629 | attr->tc_check.sv = SvRV(data); |
630 | if ( SvTYPE(attr->tc_check.sv) != SVt_PVCV ) |
160f9ca7 |
631 | croak("compiled type constraint is not a coderef"); |
632 | break; |
633 | default: |
634 | croak("todo"); |
635 | } |
636 | |
637 | flags |= tc_kind; |
638 | } |
639 | |
2cd9d2ba |
640 | |
641 | |
642 | /* default/builder data */ |
fe0194bf |
643 | |
644 | if ( SvTRUE(params[10]) ) { /* has default */ |
645 | SV *sv = params[11]; |
646 | |
647 | if ( SvROK(sv) ) { |
648 | attr->def.sv = SvRV(sv); |
649 | if ( SvTYPE(attr->def.sv) != SVt_PVCV ) |
650 | croak("compiled type constraint is not a coderef"); |
651 | } else { |
652 | attr->def.sv = newSVsv(sv); |
653 | sv_2mortal(attr->def.sv); /* in case of error soon, we refcnt inc it later after we're done checking params */ |
654 | } |
655 | |
656 | flags |= ( ATTR_DEFREFCNT | ( default_normal << ATTR_SHIFT_DEFAULT ) ); |
657 | } else if ( SvOK(params[12]) ) { /* builder */ |
658 | attr->def.sv = newSVsv(params[12]); |
659 | flags |= ( ATTR_DEFREFCNT | ( default_builder << ATTR_SHIFT_DEFAULT ) ); |
660 | } |
661 | |
2cd9d2ba |
662 | |
160f9ca7 |
663 | |
664 | attr->trigger = SvROK(params[6]) ? (CV *)SvRV(params[6]) : NULL; |
665 | if ( attr->trigger && SvTYPE(attr->trigger) != SVt_PVCV ) |
666 | croak("trigger is not a coderef"); |
667 | |
668 | attr->initializer = SvROK(params[7]) ? (CV *)SvRV(params[7]) : NULL; |
669 | if ( attr->initializer && SvTYPE(attr->initializer) != SVt_PVCV ) |
670 | croak("initializer is not a coderef"); |
671 | |
2cd9d2ba |
672 | /* now that we're done preparing/checking args and shit, so we finalize the |
673 | * attr, increasing refcounts for any referenced data, and creating the CV |
674 | * array */ |
675 | |
676 | attr->flags = flags; |
677 | |
678 | /* copy the outer ref SV */ |
160f9ca7 |
679 | attr->meta_attr = newSVsv(params[0]); |
680 | attr->type_constraint = newSVsv(tc); |
2cd9d2ba |
681 | |
682 | /* increase the refcount for auxillary structures */ |
da6328c3 |
683 | SvREFCNT_inc_simple_void(attr->trigger); |
684 | SvREFCNT_inc_simple_void(attr->initializer); |
685 | if ( flags & ATTR_TCREFCNT ) SvREFCNT_inc_simple_void_NN(attr->tc_check.sv); |
686 | if ( flags & ATTR_DEFREFCNT ) SvREFCNT_inc_simple_void_NN(attr->def.sv); |
160f9ca7 |
687 | |
f55aeea0 |
688 | attr->slot_sv = newSVpvn_share(slot_pv, slot_len, slot_hash); |
689 | attr->slot_u32 = slot_hash; |
690 | |
691 | attr->init_arg_sv = newSVpvn_share(init_arg_pv, init_arg_len, init_arg_hash); |
692 | attr->init_arg_u32 = init_arg_hash; |
160f9ca7 |
693 | |
de2f2e97 |
694 | /* cross refs to CVs which use this struct */ |
695 | attr->cvs = newAV(); |
696 | } |
697 | |
2cd9d2ba |
698 | STATIC SV *new_mi (pTHX_ HV *stash, AV *attrs) { |
699 | HV *mi_stash = gv_stashpvs("Moose::XS::Meta::Instance",0); |
700 | SV *sv_ptr = newSViv(0); |
701 | SV *obj = sv_2mortal(sv_bless(newRV_noinc(sv_ptr), mi_stash)); |
de2f2e97 |
702 | MI *mi; |
2cd9d2ba |
703 | const I32 num_attrs = av_len(attrs) + 1; |
de2f2e97 |
704 | |
687453c6 |
705 | Newxz(mi, 1, MI); |
2cd9d2ba |
706 | |
707 | /* set the pointer now, if we have any initialization errors it'll get |
708 | * cleaned up because obj is mortal */ |
709 | sv_setiv(sv_ptr, PTR2IV(mi)); |
710 | |
687453c6 |
711 | Newxz(mi->attrs, num_attrs, ATTR); |
2cd9d2ba |
712 | |
da6328c3 |
713 | SvREFCNT_inc_simple_void_NN(stash); |
de2f2e97 |
714 | mi->stash = stash; |
715 | |
de2f2e97 |
716 | mi->type = 0; /* nothing else implemented yet */ |
717 | |
718 | /* initialize attributes */ |
a0c236f1 |
719 | for ( mi->num_attrs = 0; mi->num_attrs < num_attrs; mi->num_attrs++ ) { |
2cd9d2ba |
720 | SV **desc = av_fetch(attrs, mi->num_attrs, 0); |
de2f2e97 |
721 | |
160f9ca7 |
722 | if ( !desc || !*desc || !SvROK(*desc) || !(SvTYPE(SvRV(*desc)) == SVt_PVAV) ) { |
de2f2e97 |
723 | croak("Attribute descriptor has to be a hash reference"); |
f253044f |
724 | } |
de2f2e97 |
725 | |
2cd9d2ba |
726 | init_attr(mi, &mi->attrs[mi->num_attrs], (AV *)SvRV(*desc)); |
de2f2e97 |
727 | } |
728 | |
2cd9d2ba |
729 | return obj; |
730 | } |
731 | |
732 | STATIC void delete_attr (pTHX_ ATTR *attr) { |
733 | I32 i; |
734 | SV **cvs = AvARRAY(attr->cvs); |
735 | |
736 | /* remove the pointers to this ATTR struct from all the the dependent CVs */ |
737 | for ( i = av_len(attr->cvs); i >= 0; i-- ) { |
738 | CV *cv = (CV *)cvs[i]; |
739 | XSANY.any_i32 = 0; |
740 | } |
741 | |
742 | SvREFCNT_dec(attr->cvs); |
743 | SvREFCNT_dec(attr->slot_sv); |
744 | SvREFCNT_dec(attr->type_constraint); |
745 | if ( attr->flags & ATTR_TCREFCNT ) SvREFCNT_dec(attr->tc_check.sv); |
746 | if ( attr->flags & ATTR_DEFREFCNT ) SvREFCNT_dec(attr->def.sv); |
2cd9d2ba |
747 | SvREFCNT_dec(attr->trigger); |
a0c236f1 |
748 | SvREFCNT_dec(attr->initializer); |
749 | SvREFCNT_dec(attr->writer); |
2cd9d2ba |
750 | SvREFCNT_dec(attr->meta_attr); |
de2f2e97 |
751 | } |
752 | |
7ce1a351 |
753 | STATIC void delete_mi (pTHX_ MI *mi) { |
2cd9d2ba |
754 | SvREFCNT_dec(mi->stash); |
7ce1a351 |
755 | |
2cd9d2ba |
756 | while ( mi->num_attrs--) { |
757 | ATTR *attr = &mi->attrs[mi->num_attrs]; |
758 | delete_attr(aTHX_ attr); |
7ce1a351 |
759 | } |
760 | |
2cd9d2ba |
761 | if ( mi->attrs ) Safefree(mi->attrs); |
7ce1a351 |
762 | Safefree(mi); |
763 | } |
764 | |
de2f2e97 |
765 | |
2cd9d2ba |
766 | |
767 | |
768 | /* these functions call Perl-space for MOP methods, helpers etc */ |
769 | |
770 | |
771 | /* wow, so much code for the equivalent of |
772 | * $attr->associated_class->get_meta_instance */ |
f253044f |
773 | STATIC SV *attr_to_meta_instance(pTHX_ SV *meta_attr) { |
774 | dSP; |
f253044f |
775 | SV *mi; |
776 | |
777 | if ( !meta_attr ) |
778 | croak("No attr found in magic!"); |
779 | |
780 | ENTER; |
781 | SAVETMPS; |
782 | PUSHMARK(SP); |
2cd9d2ba |
783 | |
f253044f |
784 | XPUSHs(meta_attr); |
2cd9d2ba |
785 | |
f253044f |
786 | PUTBACK; |
4ca2dd5f |
787 | call_pv("Moose::XS::attr_to_meta_instance", G_SCALAR); |
f253044f |
788 | |
789 | SPAGAIN; |
790 | mi = POPs; |
791 | |
da6328c3 |
792 | SvREFCNT_inc_simple_void(mi); |
f253044f |
793 | |
794 | PUTBACK; |
795 | FREETMPS; |
796 | LEAVE; |
797 | |
fe0194bf |
798 | return sv_2mortal(mi); |
f253044f |
799 | } |
800 | |
2cd9d2ba |
801 | /* gets a class and an array of attr parameters */ |
f253044f |
802 | STATIC SV *perl_mi_to_c_mi(pTHX_ SV *perl_mi) { |
803 | dSP; |
804 | I32 count; |
2cd9d2ba |
805 | SV *mi; |
f253044f |
806 | SV *class; |
807 | SV *attrs; |
808 | HV *stash; |
809 | |
810 | ENTER; |
811 | SAVETMPS; |
812 | PUSHMARK(SP); |
2cd9d2ba |
813 | |
f253044f |
814 | XPUSHs(perl_mi); |
2cd9d2ba |
815 | |
f253044f |
816 | PUTBACK; |
817 | count = call_pv("Moose::XS::meta_instance_to_attr_descs", G_ARRAY); |
818 | |
819 | if ( count != 2 ) |
9fad6c09 |
820 | croak("meta_instance_to_attr_descs borked (%d args returned, expecting 2)", (int)count); |
f253044f |
821 | |
822 | SPAGAIN; |
823 | attrs = POPs; |
824 | class = POPs; |
825 | |
826 | PUTBACK; |
827 | |
828 | stash = gv_stashsv(class, 0); |
829 | |
830 | mi = new_mi(aTHX_ stash, (AV *)SvRV(attrs)); |
da6328c3 |
831 | SvREFCNT_inc_simple_void_NN(mi); |
f253044f |
832 | |
833 | FREETMPS; |
834 | LEAVE; |
835 | |
2cd9d2ba |
836 | return sv_2mortal(mi); |
f253044f |
837 | } |
838 | |
2cd9d2ba |
839 | |
840 | |
841 | /* locate an ATTR for a MOP level attribute inside an MI */ |
842 | STATIC ATTR *mi_find_attr(SV *mi_obj, SV *meta_attr) { |
f253044f |
843 | I32 ix; |
2cd9d2ba |
844 | MI *mi = INT2PTR(MI *, SvIV(SvRV(mi_obj))); |
f253044f |
845 | |
035fd0c4 |
846 | for ( ix = 0; ix < mi->num_attrs; ix++ ) { |
f253044f |
847 | if ( SvRV(mi->attrs[ix].meta_attr) == SvRV(meta_attr) ) { |
848 | return &mi->attrs[ix]; |
de2f2e97 |
849 | } |
de2f2e97 |
850 | } |
851 | |
9fad6c09 |
852 | croak("Attr %x not found in meta instance of %s", (unsigned int)PTR2UV(SvRV(meta_attr)) /* SvPV_force_nomg(sv_2mortal(newSVsv(meta_attr))) */, HvNAME_get(mi->stash) ); |
de2f2e97 |
853 | return NULL; |
854 | } |
855 | |
2cd9d2ba |
856 | /* returns the ATTR for a CV: |
857 | * |
858 | * 1. get the Moose::Meta::Attribute using get_stashed_in_mg from the CV itself |
859 | * 2. get the meta instance by calling $attr->associated_class->get_meta_instance |
860 | * 3. get the MI by using get_stashed_in_mg from the meta instance, creating it if necessary |
861 | * 4. search for the appropriate ATTR in the MI using mi_find_attr |
862 | */ |
de2f2e97 |
863 | STATIC ATTR *get_attr(pTHX_ CV *cv) { |
f253044f |
864 | SV *meta_attr = get_stashed_in_mg(aTHX_ (SV *)cv); |
865 | SV *perl_mi = attr_to_meta_instance(aTHX_ meta_attr); |
2cd9d2ba |
866 | SV *mi_obj = get_stashed_in_mg(aTHX_ SvRV(perl_mi)); |
de2f2e97 |
867 | |
2cd9d2ba |
868 | if (!mi_obj) { |
869 | mi_obj = perl_mi_to_c_mi(aTHX_ perl_mi); |
870 | stash_in_mg(aTHX_ SvRV(perl_mi), mi_obj); |
f253044f |
871 | } |
872 | |
2cd9d2ba |
873 | return mi_find_attr(mi_obj, meta_attr); |
1ea12c91 |
874 | } |
875 | |
2cd9d2ba |
876 | /* Cache a pointer to the appropriate ATTR in the XSANY of the CV, using |
877 | * get_attr */ |
de2f2e97 |
878 | STATIC ATTR *define_attr (pTHX_ CV *cv) { |
879 | ATTR *attr = get_attr(aTHX_ cv); |
880 | assert(attr); |
881 | |
882 | XSANY.any_i32 = PTR2IV(attr); |
f253044f |
883 | |
da6328c3 |
884 | SvREFCNT_inc_simple_void(cv); |
f253044f |
885 | av_push( attr->cvs, (SV *)cv ); |
de2f2e97 |
886 | |
887 | return attr; |
888 | } |
889 | |
2cd9d2ba |
890 | |
891 | |
892 | |
893 | |
894 | |
895 | |
de2f2e97 |
896 | STATIC void weaken(pTHX_ SV *sv) { |
1ea12c91 |
897 | #ifdef SvWEAKREF |
de2f2e97 |
898 | sv_rvweaken(sv); /* FIXME i think this might warn when weakening an already weak ref */ |
1ea12c91 |
899 | #else |
900 | croak("weak references are not implemented in this release of perl"); |
901 | #endif |
902 | } |
903 | |
904 | |
2cd9d2ba |
905 | |
906 | |
907 | |
908 | |
8ab8cdae |
909 | /* meta instance protocol |
910 | * |
911 | * The slot functions don't change the refcount or copy (aliasing semantics) |
912 | * |
913 | * create_instance returns a new mortal */ |
1ea12c91 |
914 | |
9f3805f7 |
915 | STATIC SV *get_slot_lvalue(pTHX_ SV *self, ATTR *attr) { |
1ea12c91 |
916 | HE *he; |
917 | |
918 | assert(self); |
919 | assert(SvROK(self)); |
920 | assert(SvTYPE(SvRV(self)) == SVt_PVHV); |
921 | |
de2f2e97 |
922 | assert( ATTR_DUMB_INSTANCE(attr) ); |
923 | |
924 | if ((he = hv_fetch_ent((HV *)SvRV(self), attr->slot_sv, 0, attr->slot_u32))) |
1ea12c91 |
925 | return HeVAL(he); |
926 | else |
927 | return NULL; |
928 | } |
929 | |
9f3805f7 |
930 | STATIC bool set_slot_value(pTHX_ SV *self, ATTR *attr, SV *value) { |
1ea12c91 |
931 | HE *he; |
932 | |
933 | assert(self); |
934 | assert(SvROK(self)); |
935 | assert(SvTYPE(SvRV(self)) == SVt_PVHV); |
936 | |
de2f2e97 |
937 | assert( ATTR_DUMB_INSTANCE(attr) ); |
938 | |
9f3805f7 |
939 | he = hv_store_ent((HV*)SvRV(self), attr->slot_sv, value, attr->slot_u32); |
1ea12c91 |
940 | |
9f3805f7 |
941 | return he != NULL; |
1ea12c91 |
942 | } |
943 | |
de2f2e97 |
944 | STATIC bool has_slot_value(pTHX_ SV *self, ATTR *attr) { |
1ea12c91 |
945 | assert(self); |
946 | assert(SvROK(self)); |
947 | assert(SvTYPE(SvRV(self)) == SVt_PVHV); |
948 | |
de2f2e97 |
949 | assert( ATTR_DUMB_INSTANCE(attr) ); |
950 | |
951 | return hv_exists_ent((HV *)SvRV(self), attr->slot_sv, attr->slot_u32); |
952 | } |
953 | |
954 | STATIC SV *deinitialize_slot(pTHX_ SV *self, ATTR *attr) { |
955 | assert(self); |
956 | assert(SvROK(self)); |
957 | assert(SvTYPE(SvRV(self)) == SVt_PVHV); |
958 | |
959 | assert( ATTR_DUMB_INSTANCE(attr) ); |
960 | |
961 | return hv_delete_ent((HV *)SvRV(self), attr->slot_sv, 0, attr->slot_u32); |
1ea12c91 |
962 | } |
963 | |
af0842cb |
964 | STATIC SV *create_instance(pTHX_ MI *mi) { |
e315cce6 |
965 | return sv_bless(sv_2mortal(newRV_noinc((SV *)newHV())), mi->stash); |
af0842cb |
966 | } |
fe0194bf |
967 | |
fe0194bf |
968 | |
fe0194bf |
969 | |
fe0194bf |
970 | |
2cd9d2ba |
971 | /* Shared functionality for readers/writers/accessors, this roughly corresponds |
972 | * to the methods of Moose::Meta::Attribute on the instance |
8ab8cdae |
973 | * (get_value/set_value, default value handling, etc) |
974 | * |
975 | * These functions return mortal copiess and save copies (handling refcounting). */ |
fe0194bf |
976 | |
2cd9d2ba |
977 | STATIC void attr_set_value(pTHX_ SV *self, ATTR *attr, SV *value); |
fe0194bf |
978 | |
2cd9d2ba |
979 | STATIC SV *call_builder (pTHX_ SV *self, ATTR *attr) { |
980 | SV *sv; |
981 | dSP; |
fe0194bf |
982 | |
2cd9d2ba |
983 | ENTER; |
984 | SAVETMPS; |
985 | PUSHMARK(SP); |
986 | |
987 | XPUSHs(self); |
988 | |
989 | /* we invoke the builder as a stringified method. This will not work for |
990 | * $obj->$coderef etc, for that we need to use 'default' */ |
991 | PUTBACK; |
992 | call_method(SvPV_nolen(attr->def.sv), G_SCALAR); |
2cd9d2ba |
993 | |
994 | /* the value is a mortal with a refcount of 1, so we need to keep it around */ |
4ca2dd5f |
995 | SPAGAIN; |
2cd9d2ba |
996 | sv = POPs; |
da6328c3 |
997 | SvREFCNT_inc_simple_void(sv); |
2cd9d2ba |
998 | |
999 | PUTBACK; |
1000 | FREETMPS; |
1001 | LEAVE; |
1002 | |
1003 | return sv_2mortal(sv); |
1004 | } |
1005 | |
1006 | |
2cd9d2ba |
1007 | STATIC SV *get_default(pTHX_ SV *self, ATTR *attr) { |
1008 | switch ( ATTR_DEFAULT(attr) ) { |
1009 | case default_none: |
1010 | return NULL; |
1011 | break; |
1012 | case default_builder: |
1013 | return call_builder(aTHX_ self, attr); |
fe0194bf |
1014 | break; |
1015 | case default_normal: |
1016 | if ( SvROK(attr->def.sv) ) { |
1017 | printf("CV default\n"); |
2cd9d2ba |
1018 | croak("todo"); |
fe0194bf |
1019 | } else { |
1020 | printf("simple value\n"); |
9f3805f7 |
1021 | return sv_mortalcopy(attr->def.sv); /* will be copied by set for lazy, and by reader for both cases */ |
fe0194bf |
1022 | } |
1023 | break; |
fe0194bf |
1024 | case default_type: |
1025 | croak("todo"); |
1026 | break; |
1027 | } |
1028 | |
1029 | return NULL; |
1030 | } |
1031 | |
2cd9d2ba |
1032 | /* $attr->get_value($self), will vivify lazy values if needed |
1033 | * returns an alias to the sv that is copied in the reader/writer/accessor code |
1034 | * */ |
1035 | STATIC SV *attr_get_value(pTHX_ SV *self, ATTR *attr) { |
9f3805f7 |
1036 | SV *value = get_slot_lvalue(aTHX_ self, attr); |
fe0194bf |
1037 | |
1038 | if ( value ) { |
9f3805f7 |
1039 | return sv_mortalcopy(value); |
fe0194bf |
1040 | } else if ( ATTR_ISLAZY(attr) ) { |
1041 | value = get_default(aTHX_ self, attr); |
2cd9d2ba |
1042 | attr_set_value(aTHX_ self, attr, value); |
fe0194bf |
1043 | return value; |
1044 | } |
1045 | |
1046 | return NULL; |
160f9ca7 |
1047 | } |
1048 | |
2cd9d2ba |
1049 | /* $attr->set_value($self) */ |
1050 | STATIC void attr_set_value(pTHX_ SV *self, ATTR *attr, SV *value) { |
9f3805f7 |
1051 | SV *copy; |
1052 | |
1053 | if ( !value ) { |
1054 | /* FIXME croak if required ? */ |
1055 | return; |
1056 | } |
1057 | |
fe0194bf |
1058 | if ( ATTR_TYPE(attr) ) { |
1059 | if ( !check_type_constraint(aTHX_ ATTR_TYPE(attr), attr->tc_check, attr->type_constraint, value) ) |
160f9ca7 |
1060 | croak("Bad param"); |
1061 | } |
1062 | |
9f3805f7 |
1063 | copy = newSVsv(value); |
1064 | |
1065 | if ( ATTR_ISWEAK(attr) && SvROK(copy) ) |
1066 | weaken(aTHX_ copy); |
1067 | |
1068 | if ( !set_slot_value(aTHX_ self, attr, copy) ) { |
1069 | SvREFCNT_dec(copy); |
1070 | croak("Hash store failed."); |
1071 | } |
160f9ca7 |
1072 | } |
1ea12c91 |
1073 | |
2cd9d2ba |
1074 | |
1075 | |
1076 | |
1077 | |
1078 | |
1079 | |
1080 | /* Perl-space level functionality |
1081 | * |
1082 | * These subs are installed by new_sub's various aliases as the bodies of the |
1083 | * new XSUBs |
1084 | * */ |
1085 | |
1086 | |
1087 | |
a0c236f1 |
1088 | /* generate a new attribute method */ |
1089 | STATIC CV *new_attr_method (pTHX_ SV *attr, XSPROTO(body), char *name) { |
1090 | CV *cv = newXS(name, body, __FILE__); |
1091 | |
1092 | if (cv == NULL) |
1093 | croak("Oi vey!"); |
1094 | |
1095 | /* associate CV with meta attr */ |
1096 | stash_in_mg(aTHX_ (SV *)cv, attr); |
1097 | |
1098 | /* this will be set on first call */ |
1099 | XSANY.any_i32 = 0; |
1100 | |
1101 | return cv; |
1102 | } |
1103 | |
1104 | |
1105 | |
1106 | |
2cd9d2ba |
1107 | /* This macro is used in the XS subs to set up the 'attr' variable. |
1108 | * |
1109 | * if XSANY is NULL then define_attr is called on the CV, to set the pointer |
1110 | * to the ATTR struct. |
1111 | * */ |
1112 | #define dATTR ATTR *attr = (XSANY.any_i32 ? INT2PTR(ATTR *, (XSANY.any_i32)) : define_attr(aTHX_ cv)) |
1113 | |
1ea12c91 |
1114 | |
24a7a8c5 |
1115 | STATIC XS(reader); |
1116 | STATIC XS(reader) |
1ea12c91 |
1117 | { |
1118 | #ifdef dVAR |
1119 | dVAR; |
1120 | #endif |
1121 | dXSARGS; |
de2f2e97 |
1122 | dATTR; |
1ea12c91 |
1123 | SV *value; |
1124 | |
1125 | if (items != 1) |
1126 | Perl_croak(aTHX_ "Usage: %s(%s)", GvNAME(CvGV(cv)), "self"); |
1127 | |
1128 | SP -= items; |
1129 | |
2cd9d2ba |
1130 | value = attr_get_value(aTHX_ ST(0), attr); |
1ea12c91 |
1131 | |
1132 | if (value) { |
9f3805f7 |
1133 | ST(0) = value; |
1ea12c91 |
1134 | XSRETURN(1); |
1135 | } else { |
1136 | XSRETURN_UNDEF; |
1137 | } |
1138 | } |
1139 | |
24a7a8c5 |
1140 | STATIC XS(writer); |
1141 | STATIC XS(writer) |
1ea12c91 |
1142 | { |
1143 | #ifdef dVAR |
1144 | dVAR; |
1145 | #endif |
1146 | dXSARGS; |
de2f2e97 |
1147 | dATTR; |
1ea12c91 |
1148 | |
1149 | if (items != 2) |
1150 | Perl_croak(aTHX_ "Usage: %s(%s, %s)", GvNAME(CvGV(cv)), "self", "value"); |
1151 | |
1152 | SP -= items; |
1153 | |
2cd9d2ba |
1154 | attr_set_value(aTHX_ ST(0), attr, ST(1)); |
1ea12c91 |
1155 | |
1156 | ST(0) = ST(1); /* return value */ |
1157 | XSRETURN(1); |
1158 | } |
1159 | |
de2f2e97 |
1160 | STATIC XS(accessor); |
1161 | STATIC XS(accessor) |
1ea12c91 |
1162 | { |
1163 | #ifdef dVAR |
1164 | dVAR; |
1165 | #endif |
1166 | dXSARGS; |
de2f2e97 |
1167 | dATTR; |
1ea12c91 |
1168 | |
1169 | if (items < 1) |
1170 | Perl_croak(aTHX_ "Usage: %s(%s, [ %s ])", GvNAME(CvGV(cv)), "self", "value"); |
1171 | |
1172 | SP -= items; |
1173 | |
1174 | if (items > 1) { |
2cd9d2ba |
1175 | attr_set_value(aTHX_ ST(0), attr, ST(1)); |
1ea12c91 |
1176 | ST(0) = ST(1); /* return value */ |
1177 | } else { |
2cd9d2ba |
1178 | SV *value = attr_get_value(aTHX_ ST(0), attr); |
1ea12c91 |
1179 | if ( value ) { |
1180 | ST(0) = value; |
1181 | } else { |
1182 | XSRETURN_UNDEF; |
1183 | } |
1184 | } |
1185 | |
1186 | XSRETURN(1); |
1187 | } |
1188 | |
1189 | STATIC XS(predicate); |
1190 | STATIC XS(predicate) |
1191 | { |
1192 | #ifdef dVAR |
1193 | dVAR; |
1194 | #endif |
1195 | dXSARGS; |
de2f2e97 |
1196 | dATTR; |
1ea12c91 |
1197 | |
1198 | if (items != 1) |
1199 | Perl_croak(aTHX_ "Usage: %s(%s)", GvNAME(CvGV(cv)), "self"); |
1200 | |
1201 | SP -= items; |
1202 | |
de2f2e97 |
1203 | if ( has_slot_value(aTHX_ ST(0), attr) ) |
1ea12c91 |
1204 | XSRETURN_YES; |
1205 | else |
1206 | XSRETURN_NO; |
1207 | } |
1208 | |
a0c236f1 |
1209 | |
1210 | |
1211 | |
1212 | |
1213 | |
1214 | |
1ea12c91 |
1215 | enum xs_body { |
24a7a8c5 |
1216 | xs_body_reader = 0, |
1217 | xs_body_writer, |
de2f2e97 |
1218 | xs_body_accessor, |
1ea12c91 |
1219 | xs_body_predicate, |
1220 | max_xs_body |
1221 | }; |
1222 | |
1223 | STATIC XSPROTO ((*xs_bodies[])) = { |
24a7a8c5 |
1224 | reader, |
1225 | writer, |
de2f2e97 |
1226 | accessor, |
1ea12c91 |
1227 | predicate, |
1228 | }; |
1229 | |
1230 | MODULE = Moose PACKAGE = Moose::XS |
4e783f63 |
1231 | PROTOTYPES: ENABLE |
1ea12c91 |
1232 | |
1233 | CV * |
a0c236f1 |
1234 | new_attr_method(attr, name) |
1ea12c91 |
1235 | INPUT: |
de2f2e97 |
1236 | SV *attr; |
1237 | SV *name; |
4e783f63 |
1238 | PROTOTYPE: $;$ |
a0c236f1 |
1239 | PREINIT: |
1240 | char *pv = SvOK(name) ? SvPV_nolen(name) : NULL; |
1ea12c91 |
1241 | ALIAS: |
24a7a8c5 |
1242 | new_reader = xs_body_reader |
1243 | new_writer = xs_body_writer |
de2f2e97 |
1244 | new_accessor = xs_body_accessor |
1245 | new_predicate = xs_body_predicate |
1ea12c91 |
1246 | CODE: |
1247 | if ( ix >= max_xs_body ) |
1248 | croak("Unknown Moose::XS body type"); |
1249 | |
de2f2e97 |
1250 | if ( !sv_isobject(attr) ) |
1251 | croak("'attr' must be a Moose::Meta::Attribute"); |
1252 | |
a0c236f1 |
1253 | RETVAL = new_attr_method(aTHX_ attr, xs_bodies[ix], pv); |
1ea12c91 |
1254 | OUTPUT: |
1255 | RETVAL |
1256 | |
1257 | |
f253044f |
1258 | MODULE = Moose PACKAGE = Moose::XS::Meta::Instance |
4e783f63 |
1259 | PROTOTYPES: DISABLE |
f253044f |
1260 | |
1261 | void |
1262 | DESTROY(self) |
1263 | INPUT: |
1264 | SV *self; |
1265 | PREINIT: |
1266 | MI *mi = INT2PTR(MI *, SvIV(SvRV(self))); |
1267 | CODE: |
2cd9d2ba |
1268 | if ( mi ) |
1269 | delete_mi(aTHX_ mi); |
1270 | |
3c63e75d |
1271 | |
1272 | MODULE = Moose PACKAGE = Moose::XS::TypeConstraints |
1273 | PROTOTYPES: ENABLE |
1274 | |
1275 | bool |
1276 | _check_type(sv) |
1277 | INPUT: |
1278 | SV* sv |
1279 | ALIAS: |
1280 | Any = Any |
1281 | Item = Any |
1282 | Bool = Any |
1283 | Undef = Undef |
1284 | Defined = Defined |
1285 | Str = Str |
1286 | Value = Str |
1287 | Num = Num |
1288 | Int = Int |
1289 | GlobRef = GlobRef |
1290 | ArrayRef = ArrayRef |
1291 | HashRef = HashRef |
1292 | CodeRef = CodeRef |
1293 | Ref = Ref |
1294 | ScalarRef = ScalarRef |
1295 | FileHandle = FileHandle |
1296 | RegexpRef = RegexpRef |
1297 | Object = Object |
1298 | Role = Role |
1299 | ClassName = ClassName |
1300 | CODE: |
1301 | RETVAL = check_sv_type(ix, sv); |
1302 | OUTPUT: |
1303 | RETVAL |
1304 | |
1305 | bool |
1306 | ObjectOfType(sv, class) |
1307 | INPUT: |
1308 | SV* sv |
1309 | SV* class |
1310 | PREINIT: |
1311 | HV *stash = gv_stashsv(class, 0); |
1312 | CODE: |
1313 | RETVAL = check_sv_class(aTHX_ stash, sv); |
1314 | OUTPUT: |
1315 | RETVAL |