Commit | Line | Data |
646c0371 |
1 | #include "mouse.h" |
2 | |
3 | #define ISA_CACHE "::LINEALIZED_ISA_CACHE::" |
4 | |
5 | #ifdef no_mro_get_linear_isa |
6 | AV* |
7 | mouse_mro_get_linear_isa(pTHX_ HV* const stash){ |
8 | GV* const cachegv = *(GV**)hv_fetchs(stash, ISA_CACHE, TRUE); |
9 | AV* isa; |
10 | SV* gen; |
11 | CV* get_linear_isa; |
12 | |
13 | if(!isGV(cachegv)) |
14 | gv_init(cachegv, stash, ISA_CACHE, sizeof(ISA_CACHE)-1, TRUE); |
15 | |
16 | isa = GvAVn(cachegv); |
17 | gen = GvSVn(cachegv); |
18 | |
19 | |
20 | if(SvIOK(gen) && SvIVX(gen) == (IV)mro_get_pkg_gen(stash)){ |
21 | return isa; /* returns the cache if available */ |
22 | } |
23 | else{ |
24 | SvREADONLY_off(isa); |
25 | av_clear(isa); |
26 | } |
27 | |
28 | get_linear_isa = get_cv("Mouse::Util::get_linear_isa", TRUE); |
29 | |
30 | { |
31 | SV* avref; |
32 | dSP; |
33 | |
34 | ENTER; |
35 | SAVETMPS; |
36 | |
37 | PUSHMARK(SP); |
38 | mXPUSHp(HvNAME_get(stash), HvNAMELEN_get(stash)); |
39 | PUTBACK; |
40 | |
41 | call_sv((SV*)get_linear_isa, G_SCALAR); |
42 | |
43 | SPAGAIN; |
44 | avref = POPs; |
45 | PUTBACK; |
46 | |
47 | if(SvROK(avref) && SvTYPE(SvRV(avref)) == SVt_PVAV){ |
48 | AV* const av = (AV*)SvRV(avref); |
49 | I32 const len = AvFILLp(av) + 1; |
50 | I32 i; |
51 | |
52 | for(i = 0; i < len; i++){ |
53 | HV* const stash = gv_stashsv(AvARRAY(av)[i], FALSE); |
54 | if(stash) |
55 | av_push(isa, newSVpv(HvNAME(stash), 0)); |
56 | } |
57 | SvREADONLY_on(isa); |
58 | } |
59 | else{ |
60 | Perl_croak(aTHX_ "Mouse:Util::get_linear_isa() didn't return an ARRAY reference"); |
61 | } |
62 | |
63 | FREETMPS; |
64 | LEAVE; |
65 | } |
66 | |
67 | sv_setiv(gen, (IV)mro_get_pkg_gen(stash)); |
68 | return GvAV(cachegv); |
69 | } |
70 | #endif /* !no_mor_get_linear_isa */ |
71 | |
72 | #ifdef DEBUGGING |
73 | SV** |
74 | mouse_av_at_safe(pTHX_ AV* const av, I32 const ix){ |
75 | assert(av); |
76 | assert(SvTYPE(av) == SVt_PVAV); |
77 | assert(AvMAX(av) >= ix); |
78 | return &AvARRAY(av)[ix]; |
79 | } |
80 | #endif |
81 | |
82 | void |
83 | mouse_throw_error(SV* const metaobject, SV* const data /* not used */, const char* const fmt, ...){ |
84 | dTHX; |
85 | va_list args; |
86 | SV* message; |
87 | |
88 | PERL_UNUSED_ARG(data); /* for moose-compat */ |
89 | |
90 | assert(metaobject); |
91 | assert(fmt); |
92 | |
93 | va_start(args, fmt); |
94 | message = vnewSVpvf(fmt, &args); |
95 | va_end(args); |
96 | |
97 | { |
98 | dSP; |
99 | PUSHMARK(SP); |
100 | EXTEND(SP, 4); |
101 | |
102 | PUSHs(metaobject); |
103 | mPUSHs(message); |
104 | |
105 | mPUSHs(newSVpvs("depth")); |
106 | mPUSHi(-1); |
107 | |
108 | PUTBACK; |
109 | |
110 | call_method("throw_error", G_VOID); |
111 | croak("throw_error() did not throw the error (%"SVf")", message); |
112 | } |
113 | } |
114 | |
115 | |
116 | /* equivalent to "blessed($x) && $x->isa($klass)" */ |
117 | bool |
118 | mouse_is_instance_of(pTHX_ SV* const sv, SV* const klass){ |
119 | assert(sv); |
120 | assert(klass); |
121 | |
122 | if(IsObject(sv) && SvOK(klass)){ |
123 | bool ok; |
124 | |
125 | ENTER; |
126 | SAVETMPS; |
127 | |
128 | ok = SvTRUEx(mcall1s(sv, "isa", klass)); |
129 | |
130 | FREETMPS; |
131 | LEAVE; |
132 | |
133 | return ok; |
134 | } |
135 | |
136 | return FALSE; |
137 | } |
138 | |
139 | |
140 | bool |
141 | mouse_is_class_loaded(pTHX_ SV * const klass){ |
142 | HV *stash; |
143 | GV** gvp; |
144 | HE* he; |
145 | |
146 | if (!(SvPOKp(klass) && SvCUR(klass))) { /* XXX: SvPOK does not work with magical scalars */ |
147 | return FALSE; |
148 | } |
149 | |
150 | stash = gv_stashsv(klass, FALSE); |
151 | if (!stash) { |
152 | return FALSE; |
153 | } |
154 | |
155 | if (( gvp = (GV**)hv_fetchs(stash, "VERSION", FALSE) )) { |
156 | if(isGV(*gvp) && GvSV(*gvp) && SvOK(GvSV(*gvp))){ |
157 | return TRUE; |
158 | } |
159 | } |
160 | |
161 | if (( gvp = (GV**)hv_fetchs(stash, "ISA", FALSE) )) { |
162 | if(isGV(*gvp) && GvAV(*gvp) && av_len(GvAV(*gvp)) != -1){ |
163 | return TRUE; |
164 | } |
165 | } |
166 | |
167 | hv_iterinit(stash); |
168 | while(( he = hv_iternext(stash) )){ |
169 | GV* const gv = (GV*)HeVAL(he); |
170 | |
171 | if(isGV(gv)){ |
172 | if(GvCVu(gv)){ |
173 | return TRUE; |
174 | } |
175 | } |
176 | else if(SvOK(gv)){ |
177 | return TRUE; |
178 | } |
179 | } |
180 | return FALSE; |
181 | } |
182 | |
183 | |
184 | SV * |
185 | mouse_call0 (pTHX_ SV *const self, SV *const method) |
186 | { |
187 | dSP; |
188 | SV *ret; |
189 | |
190 | PUSHMARK(SP); |
191 | XPUSHs(self); |
192 | PUTBACK; |
193 | |
194 | call_sv(method, G_SCALAR | G_METHOD); |
195 | |
196 | SPAGAIN; |
197 | ret = POPs; |
198 | PUTBACK; |
199 | |
200 | return ret; |
201 | } |
202 | |
203 | SV * |
204 | mouse_call1 (pTHX_ SV *const self, SV *const method, SV* const arg1) |
205 | { |
206 | dSP; |
207 | SV *ret; |
208 | |
209 | PUSHMARK(SP); |
210 | EXTEND(SP, 2); |
211 | PUSHs(self); |
212 | PUSHs(arg1); |
213 | PUTBACK; |
214 | |
215 | call_sv(method, G_SCALAR | G_METHOD); |
216 | |
217 | SPAGAIN; |
218 | ret = POPs; |
219 | PUTBACK; |
220 | |
221 | return ret; |
222 | } |
223 | |
224 | MAGIC* |
225 | mouse_mg_find(pTHX_ SV* const sv, const MGVTBL* const vtbl, I32 const flags){ |
226 | MAGIC* mg; |
227 | |
228 | assert(sv != NULL); |
229 | for(mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic){ |
230 | if(mg->mg_virtual == vtbl){ |
231 | return mg; |
232 | } |
233 | } |
234 | |
235 | if(flags & MOUSEf_DIE_ON_FAIL){ |
236 | croak("mouse_mg_find: no MAGIC found for %"SVf, sv_2mortal(newRV_inc(sv))); |
237 | } |
238 | return NULL; |
239 | } |
240 | |
241 | MODULE = Mouse::Util PACKAGE = Mouse::Util |
242 | |
243 | PROTOTYPES: DISABLE |
244 | VERSIONCHECK: DISABLE |
245 | |
246 | bool |
247 | is_class_loaded(SV* sv) |
248 | |
249 | void |
250 | get_code_info(CV* code) |
251 | PREINIT: |
252 | GV* gv; |
253 | HV* stash; |
254 | PPCODE: |
255 | if((gv = CvGV(code)) && isGV(gv) && (stash = GvSTASH(gv))){ |
256 | EXTEND(SP, 2); |
257 | mPUSHs(newSVpvn_share(HvNAME_get(stash), HvNAMELEN_get(stash), 0U)); |
258 | mPUSHs(newSVpvn_share(GvNAME_get(gv), GvNAMELEN_get(gv), 0U)); |
259 | } |
260 | |
261 | SV* |
262 | get_code_package(CV* code) |
263 | PREINIT: |
264 | HV* stash; |
265 | CODE: |
266 | if(CvGV(code) && isGV(CvGV(code)) && (stash = GvSTASH(CvGV(code)))){ |
267 | RETVAL = newSVpvn_share(HvNAME_get(stash), HvNAMELEN_get(stash), 0U); |
268 | } |
269 | else{ |
270 | RETVAL = &PL_sv_no; |
271 | } |
272 | OUTPUT: |
273 | RETVAL |
274 | |
275 | CV* |
276 | get_code_ref(SV* package, SV* name) |
277 | CODE: |
278 | { |
279 | HV* stash; |
280 | HE* he; |
281 | |
282 | if(!SvOK(package)){ |
283 | croak("You must define a package name"); |
284 | } |
285 | if(!SvOK(name)){ |
286 | croak("You must define a subroutine name"); |
287 | } |
288 | |
289 | stash = gv_stashsv(package, FALSE); |
290 | if(!stash){ |
291 | XSRETURN_UNDEF; |
292 | } |
293 | he = hv_fetch_ent(stash, name, FALSE, 0U); |
294 | if(he){ |
295 | GV* const gv = (GV*)hv_iterval(stash, he); |
296 | if(!isGV(gv)){ /* special constant or stub */ |
297 | STRLEN len; |
298 | const char* const pv = SvPV_const(name, len); |
299 | gv_init(gv, stash, pv, len, GV_ADDMULTI); |
300 | } |
301 | RETVAL = GvCVu(gv); |
302 | } |
303 | else{ |
304 | RETVAL = NULL; |
305 | } |
306 | |
307 | if(!RETVAL){ |
308 | XSRETURN_UNDEF; |
309 | } |
310 | } |
311 | OUTPUT: |
312 | RETVAL |
313 | |
314 | void |
315 | generate_isa_predicate_for(SV* klass, const char* predicate_name = NULL) |
316 | PPCODE: |
317 | { |
318 | STRLEN klass_len; |
319 | const char* klass_pv; |
320 | HV* stash; |
321 | CV* xsub; |
322 | |
323 | if(!SvOK(klass)){ |
324 | croak("You must define a class name for generate_for"); |
325 | } |
326 | klass_pv = SvPV_const(klass, klass_len); |
327 | klass_pv = mouse_canonicalize_package_name(klass_pv); |
328 | |
329 | if(strNE(klass_pv, "UNIVERSAL")){ |
330 | static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */ |
331 | |
332 | xsub = newXS(predicate_name, XS_isa_check, __FILE__); |
333 | |
334 | stash = gv_stashpvn(klass_pv, klass_len, GV_ADD); |
335 | |
336 | CvXSUBANY(xsub).any_ptr = sv_magicext( |
337 | (SV*)xsub, |
338 | (SV*)stash, /* mg_obj */ |
339 | PERL_MAGIC_ext, |
340 | &mouse_util_type_constraints_vtbl, |
341 | klass_pv, /* mg_ptr */ |
342 | klass_len /* mg_len */ |
343 | ); |
344 | } |
345 | else{ |
346 | xsub = newXS(predicate_name, XS_isa_check_for_universal, __FILE__); |
347 | } |
348 | |
349 | if(predicate_name == NULL){ /* anonymous predicate */ |
350 | XPUSHs( newRV_noinc((SV*)xsub) ); |
351 | } |
352 | } |