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09bef843 SB |
1 | #include "EXTERN.h" |
2 | #define PERL_IN_XSUTILS_C | |
3 | #include "perl.h" | |
4 | ||
5 | /* | |
6 | * Contributed by Spider Boardman (spider.boardman@orb.nashua.nh.us). | |
7 | */ | |
8 | ||
349fd7b7 | 9 | /* package attributes; */ |
acfe0abc GS |
10 | void XS_attributes__warn_reserved(pTHX_ CV *cv); |
11 | void XS_attributes_reftype(pTHX_ CV *cv); | |
12 | void XS_attributes__modify_attrs(pTHX_ CV *cv); | |
13 | void XS_attributes__guess_stash(pTHX_ CV *cv); | |
14 | void XS_attributes__fetch_attrs(pTHX_ CV *cv); | |
15 | void XS_attributes_bootstrap(pTHX_ CV *cv); | |
349fd7b7 GS |
16 | |
17 | ||
18 | /* | |
19 | * Note that only ${pkg}::bootstrap definitions should go here. | |
20 | * This helps keep down the start-up time, which is especially | |
21 | * relevant for users who don't invoke any features which are | |
22 | * (partially) implemented here. | |
23 | * | |
24 | * The various bootstrap definitions can take care of doing | |
25 | * package-specific newXS() calls. Since the layout of the | |
6a34af38 | 26 | * bundled *.pm files is in a version-specific directory, |
349fd7b7 GS |
27 | * version checks in these bootstrap calls are optional. |
28 | */ | |
29 | ||
30 | void | |
31 | Perl_boot_core_xsutils(pTHX) | |
32 | { | |
33 | char *file = __FILE__; | |
34 | ||
35 | newXS("attributes::bootstrap", XS_attributes_bootstrap, file); | |
36 | } | |
37 | ||
349fd7b7 GS |
38 | #include "XSUB.h" |
39 | ||
40 | static int | |
acfe0abc | 41 | modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs) |
09bef843 SB |
42 | { |
43 | SV *attr; | |
44 | char *name; | |
45 | STRLEN len; | |
46 | bool negated; | |
47 | int nret; | |
48 | ||
49 | for (nret = 0 ; numattrs && (attr = *attrlist++); numattrs--) { | |
50 | name = SvPV(attr, len); | |
155aba94 | 51 | if ((negated = (*name == '-'))) { |
09bef843 SB |
52 | name++; |
53 | len--; | |
54 | } | |
55 | switch (SvTYPE(sv)) { | |
56 | case SVt_PVCV: | |
57 | switch ((int)len) { | |
58 | case 6: | |
59 | switch (*name) { | |
60 | case 'l': | |
61 | #ifdef CVf_LVALUE | |
62 | if (strEQ(name, "lvalue")) { | |
63 | if (negated) | |
64 | CvFLAGS((CV*)sv) &= ~CVf_LVALUE; | |
65 | else | |
66 | CvFLAGS((CV*)sv) |= CVf_LVALUE; | |
67 | continue; | |
68 | } | |
69 | #endif /* defined CVf_LVALUE */ | |
70 | if (strEQ(name, "locked")) { | |
71 | if (negated) | |
72 | CvFLAGS((CV*)sv) &= ~CVf_LOCKED; | |
73 | else | |
74 | CvFLAGS((CV*)sv) |= CVf_LOCKED; | |
75 | continue; | |
76 | } | |
77 | break; | |
78 | case 'm': | |
79 | if (strEQ(name, "method")) { | |
80 | if (negated) | |
81 | CvFLAGS((CV*)sv) &= ~CVf_METHOD; | |
82 | else | |
83 | CvFLAGS((CV*)sv) |= CVf_METHOD; | |
84 | continue; | |
85 | } | |
86 | break; | |
95f0a2f1 SB |
87 | case 'u': |
88 | if (strEQ(name, "unique")) { | |
0256094b | 89 | if (negated) |
7fb37951 | 90 | GvUNIQUE_off(CvGV((CV*)sv)); |
0256094b | 91 | else |
7fb37951 | 92 | GvUNIQUE_on(CvGV((CV*)sv)); |
0256094b DM |
93 | continue; |
94 | } | |
95 | break; | |
09bef843 SB |
96 | } |
97 | break; | |
98 | } | |
99 | break; | |
100 | default: | |
0256094b | 101 | switch ((int)len) { |
95f0a2f1 | 102 | case 6: |
0256094b | 103 | switch (*name) { |
95f0a2f1 SB |
104 | case 'u': |
105 | if (strEQ(name, "unique")) { | |
106 | if (SvTYPE(sv) == SVt_PVGV) { | |
107 | if (negated) | |
108 | GvUNIQUE_off(sv); | |
109 | else | |
110 | GvUNIQUE_on(sv); | |
111 | } | |
112 | /* Hope this came from toke.c if not a GV. */ | |
0256094b DM |
113 | continue; |
114 | } | |
115 | } | |
116 | } | |
09bef843 SB |
117 | break; |
118 | } | |
119 | /* anything recognized had a 'continue' above */ | |
120 | *retlist++ = attr; | |
121 | nret++; | |
122 | } | |
123 | ||
124 | return nret; | |
125 | } | |
126 | ||
127 | ||
09bef843 SB |
128 | |
129 | /* package attributes; */ | |
130 | ||
131 | XS(XS_attributes_bootstrap) | |
132 | { | |
133 | dXSARGS; | |
134 | char *file = __FILE__; | |
135 | ||
592f5969 MS |
136 | if( items > 1 ) |
137 | Perl_croak(aTHX_ "Usage: attributes::bootstrap $module"); | |
b7953727 | 138 | |
09bef843 SB |
139 | newXSproto("attributes::_warn_reserved", XS_attributes__warn_reserved, file, ""); |
140 | newXS("attributes::_modify_attrs", XS_attributes__modify_attrs, file); | |
141 | newXSproto("attributes::_guess_stash", XS_attributes__guess_stash, file, "$"); | |
142 | newXSproto("attributes::_fetch_attrs", XS_attributes__fetch_attrs, file, "$"); | |
143 | newXSproto("attributes::reftype", XS_attributes_reftype, file, "$"); | |
144 | ||
145 | XSRETURN(0); | |
146 | } | |
147 | ||
148 | XS(XS_attributes__modify_attrs) | |
149 | { | |
150 | dXSARGS; | |
151 | SV *rv, *sv; | |
152 | ||
153 | if (items < 1) { | |
154 | usage: | |
155 | Perl_croak(aTHX_ | |
156 | "Usage: attributes::_modify_attrs $reference, @attributes"); | |
157 | } | |
158 | ||
159 | rv = ST(0); | |
160 | if (!(SvOK(rv) && SvROK(rv))) | |
161 | goto usage; | |
162 | sv = SvRV(rv); | |
163 | if (items > 1) | |
acfe0abc | 164 | XSRETURN(modify_SV_attributes(aTHX_ sv, &ST(0), &ST(1), items-1)); |
09bef843 SB |
165 | |
166 | XSRETURN(0); | |
167 | } | |
168 | ||
169 | XS(XS_attributes__fetch_attrs) | |
170 | { | |
171 | dXSARGS; | |
172 | SV *rv, *sv; | |
173 | cv_flags_t cvflags; | |
174 | ||
175 | if (items != 1) { | |
176 | usage: | |
177 | Perl_croak(aTHX_ | |
178 | "Usage: attributes::_fetch_attrs $reference"); | |
179 | } | |
180 | ||
181 | rv = ST(0); | |
182 | SP -= items; | |
183 | if (!(SvOK(rv) && SvROK(rv))) | |
184 | goto usage; | |
185 | sv = SvRV(rv); | |
186 | ||
187 | switch (SvTYPE(sv)) { | |
188 | case SVt_PVCV: | |
189 | cvflags = CvFLAGS((CV*)sv); | |
190 | if (cvflags & CVf_LOCKED) | |
191 | XPUSHs(sv_2mortal(newSVpvn("locked", 6))); | |
192 | #ifdef CVf_LVALUE | |
193 | if (cvflags & CVf_LVALUE) | |
194 | XPUSHs(sv_2mortal(newSVpvn("lvalue", 6))); | |
195 | #endif | |
196 | if (cvflags & CVf_METHOD) | |
197 | XPUSHs(sv_2mortal(newSVpvn("method", 6))); | |
7fb37951 | 198 | if (GvUNIQUE(CvGV((CV*)sv))) |
95f0a2f1 SB |
199 | XPUSHs(sv_2mortal(newSVpvn("unique", 6))); |
200 | break; | |
201 | case SVt_PVGV: | |
202 | if (GvUNIQUE(sv)) | |
203 | XPUSHs(sv_2mortal(newSVpvn("unique", 6))); | |
09bef843 SB |
204 | break; |
205 | default: | |
206 | break; | |
207 | } | |
208 | ||
209 | PUTBACK; | |
210 | } | |
211 | ||
212 | XS(XS_attributes__guess_stash) | |
213 | { | |
214 | dXSARGS; | |
215 | SV *rv, *sv; | |
216 | #ifdef dXSTARGET | |
217 | dXSTARGET; | |
218 | #else | |
219 | SV * TARG = sv_newmortal(); | |
220 | #endif | |
221 | ||
222 | if (items != 1) { | |
223 | usage: | |
224 | Perl_croak(aTHX_ | |
225 | "Usage: attributes::_guess_stash $reference"); | |
226 | } | |
227 | ||
228 | rv = ST(0); | |
229 | ST(0) = TARG; | |
230 | if (!(SvOK(rv) && SvROK(rv))) | |
231 | goto usage; | |
232 | sv = SvRV(rv); | |
233 | ||
234 | if (SvOBJECT(sv)) | |
235 | sv_setpv(TARG, HvNAME(SvSTASH(sv))); | |
236 | #if 0 /* this was probably a bad idea */ | |
237 | else if (SvPADMY(sv)) | |
238 | sv_setsv(TARG, &PL_sv_no); /* unblessed lexical */ | |
239 | #endif | |
240 | else { | |
241 | HV *stash = Nullhv; | |
242 | switch (SvTYPE(sv)) { | |
243 | case SVt_PVCV: | |
6676db26 | 244 | if (CvGV(sv) && isGV(CvGV(sv)) && GvSTASH(CvGV(sv))) |
09bef843 | 245 | stash = GvSTASH(CvGV(sv)); |
6676db26 | 246 | else if (/* !CvANON(sv) && */ CvSTASH(sv)) |
09bef843 SB |
247 | stash = CvSTASH(sv); |
248 | break; | |
249 | case SVt_PVMG: | |
14befaf4 | 250 | if (!(SvFAKE(sv) && SvTIED_mg(sv, PERL_MAGIC_glob))) |
09bef843 SB |
251 | break; |
252 | /*FALLTHROUGH*/ | |
253 | case SVt_PVGV: | |
6676db26 | 254 | if (GvGP(sv) && GvESTASH((GV*)sv)) |
09bef843 SB |
255 | stash = GvESTASH((GV*)sv); |
256 | break; | |
257 | default: | |
258 | break; | |
259 | } | |
260 | if (stash) | |
261 | sv_setpv(TARG, HvNAME(stash)); | |
262 | } | |
263 | ||
264 | #ifdef dXSTARGET | |
265 | SvSETMAGIC(TARG); | |
266 | #endif | |
267 | XSRETURN(1); | |
268 | } | |
269 | ||
270 | XS(XS_attributes_reftype) | |
271 | { | |
272 | dXSARGS; | |
273 | SV *rv, *sv; | |
274 | #ifdef dXSTARGET | |
275 | dXSTARGET; | |
276 | #else | |
277 | SV * TARG = sv_newmortal(); | |
278 | #endif | |
279 | ||
280 | if (items != 1) { | |
281 | usage: | |
282 | Perl_croak(aTHX_ | |
283 | "Usage: attributes::reftype $reference"); | |
284 | } | |
285 | ||
286 | rv = ST(0); | |
287 | ST(0) = TARG; | |
4694d0ea GS |
288 | if (SvGMAGICAL(rv)) |
289 | mg_get(rv); | |
121e869f | 290 | if (!(SvOK(rv) && SvROK(rv))) |
09bef843 SB |
291 | goto usage; |
292 | sv = SvRV(rv); | |
293 | sv_setpv(TARG, sv_reftype(sv, 0)); | |
294 | #ifdef dXSTARGET | |
295 | SvSETMAGIC(TARG); | |
296 | #endif | |
297 | ||
298 | XSRETURN(1); | |
299 | } | |
300 | ||
301 | XS(XS_attributes__warn_reserved) | |
302 | { | |
303 | dXSARGS; | |
09bef843 SB |
304 | #ifdef dXSTARGET |
305 | dXSTARGET; | |
306 | #else | |
307 | SV * TARG = sv_newmortal(); | |
308 | #endif | |
309 | ||
310 | if (items != 0) { | |
311 | Perl_croak(aTHX_ | |
312 | "Usage: attributes::_warn_reserved ()"); | |
313 | } | |
314 | ||
315 | EXTEND(SP,1); | |
316 | ST(0) = TARG; | |
317 | sv_setiv(TARG, ckWARN(WARN_RESERVED) != 0); | |
318 | #ifdef dXSTARGET | |
319 | SvSETMAGIC(TARG); | |
320 | #endif | |
321 | ||
322 | XSRETURN(1); | |
323 | } | |
324 |