… | |
… | |
56 | if (!SvROK (target_ref)) |
56 | if (!SvROK (target_ref)) |
57 | croak ("find expects a reference to a perl value"); |
57 | croak ("find expects a reference to a perl value"); |
58 | |
58 | |
59 | targ = SvRV (target_ref); |
59 | targ = SvRV (target_ref); |
60 | |
60 | |
61 | for (arena = PL_sv_arenaroot; arena; arena = SvANY (arena)) |
61 | if (SvIMMORTAL (targ)) |
62 | { |
62 | { |
63 | UV idx = SvREFCNT (arena); |
63 | if (targ == &PL_sv_undef) |
64 | |
64 | res_text ("the immortal 'undef' value"); |
65 | /* Remember that the zeroth slot is used as the pointer onwards, so don't |
65 | else if (targ == &PL_sv_yes) |
66 | include it. */ |
66 | res_text ("the immortal 'yes' value"); |
67 | while (--idx > 0) |
67 | else if (targ == &PL_sv_no) |
|
|
68 | res_text ("the immortal 'no' value"); |
|
|
69 | else if (targ == &PL_sv_placeholder) |
|
|
70 | res_text ("the immortal placeholder value"); |
|
|
71 | else |
|
|
72 | res_text ("some unknown immortal"); |
|
|
73 | } |
|
|
74 | else |
|
|
75 | { |
|
|
76 | for (arena = PL_sv_arenaroot; arena; arena = SvANY (arena)) |
68 | { |
77 | { |
69 | SV *sv = &arena [idx]; |
78 | UV idx = SvREFCNT (arena); |
70 | |
79 | |
71 | if (SvTYPE (sv) >= SVt_LAST) |
80 | /* Remember that the zeroth slot is used as the pointer onwards, so don't |
72 | continue; |
81 | include it. */ |
73 | |
82 | while (--idx > 0) |
74 | /* temporarily disable RMAGICAL, it can easily interfere with us */ |
|
|
75 | if ((rmagical = SvRMAGICAL (sv))) |
|
|
76 | SvRMAGICAL_off (sv); |
|
|
77 | |
|
|
78 | if (SvTYPE (sv) >= SVt_PVMG) |
|
|
79 | { |
83 | { |
|
|
84 | SV *sv = &arena [idx]; |
|
|
85 | |
|
|
86 | if (SvTYPE (sv) >= SVt_LAST) |
|
|
87 | continue; |
|
|
88 | |
|
|
89 | /* temporarily disable RMAGICAL, it can easily interfere with us */ |
|
|
90 | if ((rmagical = SvRMAGICAL (sv))) |
|
|
91 | SvRMAGICAL_off (sv); |
|
|
92 | |
80 | if (SvTYPE (sv) == SVt_PVMG && SvPAD_OUR (sv)) |
93 | if (SvTYPE (sv) >= SVt_PVMG) |
81 | { |
94 | { |
|
|
95 | if (SvTYPE (sv) == SVt_PVMG && SvPAD_OUR (sv)) |
|
|
96 | { |
82 | /* I have no clue what this is */ |
97 | /* I have no clue what this is */ |
83 | /* maybe some placeholder for our variables for eval? */ |
98 | /* maybe some placeholder for our variables for eval? */ |
84 | /* it doesn't seem to reference anything, so we should be able to ignore it */ |
99 | /* it doesn't seem to reference anything, so we should be able to ignore it */ |
|
|
100 | } |
|
|
101 | else |
|
|
102 | { |
|
|
103 | MAGIC *mg = SvMAGIC (sv); |
|
|
104 | |
|
|
105 | while (mg) |
|
|
106 | { |
|
|
107 | if (mg->mg_obj == targ && mg->mg_flags & MGf_REFCOUNTED) |
|
|
108 | res_pair (form ("referenced (in mg_obj) by '%c' type magic attached to", mg->mg_type)); |
|
|
109 | |
|
|
110 | if ((SV *)mg->mg_ptr == targ) |
|
|
111 | res_pair (form ("%sreferenced (in mg_ptr) by '%c' type magic attached to", |
|
|
112 | mg->mg_len == HEf_SVKEY ? "" : "possibly ", |
|
|
113 | mg->mg_type)); |
|
|
114 | |
|
|
115 | mg = mg->mg_moremagic; |
|
|
116 | } |
|
|
117 | } |
|
|
118 | } |
|
|
119 | |
|
|
120 | if (SvROK (sv)) |
|
|
121 | { |
|
|
122 | if (SvRV (sv) == targ && !SvWEAKREF (sv) && sv != target_ref) |
|
|
123 | res_pair ("referenced by"); |
85 | } |
124 | } |
86 | else |
125 | else |
|
|
126 | switch (SvTYPE (sv)) |
87 | { |
127 | { |
88 | MAGIC *mg = SvMAGIC (sv); |
128 | case SVt_PVAV: |
|
|
129 | if (AvREAL (sv)) |
|
|
130 | for (i = AvFILLp (sv) + 1; i--; ) |
|
|
131 | if (AvARRAY (sv)[i] == targ) |
|
|
132 | res_pair (form ("in array element %d of", i)); |
89 | |
133 | |
90 | while (mg) |
134 | break; |
|
|
135 | |
|
|
136 | case SVt_PVHV: |
|
|
137 | if (hv_iterinit ((HV *)sv)) |
|
|
138 | { |
|
|
139 | HE *he; |
|
|
140 | |
|
|
141 | while ((he = hv_iternext ((HV *)sv))) |
|
|
142 | if (HeVAL (he) == targ) |
|
|
143 | res_pair (form ("in the member '%.*s' of", HeKLEN (he), HeKEY (he))); |
|
|
144 | } |
|
|
145 | |
|
|
146 | break; |
|
|
147 | |
|
|
148 | case SVt_PVCV: |
91 | { |
149 | { |
92 | if (mg->mg_obj == targ) |
150 | int depth = CvDEPTH (sv); |
93 | res_pair (form ("referenced (in mg_obj) by '%c' type magic attached to", mg->mg_type)); |
|
|
94 | |
151 | |
95 | if ((SV *)mg->mg_ptr == targ && mg->mg_flags & MGf_REFCOUNTED) |
152 | /* Anonymous subs have a padlist but zero depth */ |
96 | res_pair (form ("referenced (in mg_ptr) by '%c' type magic attached to", mg->mg_type)); |
153 | if (CvANON (sv) && !depth && CvPADLIST (sv)) |
|
|
154 | depth = 1; |
97 | |
155 | |
98 | mg = mg->mg_moremagic; |
156 | if (depth) |
|
|
157 | { |
|
|
158 | AV *padlist = CvPADLIST (sv); |
|
|
159 | |
|
|
160 | while (depth) |
|
|
161 | { |
|
|
162 | AV *pad = (AV *)AvARRAY (padlist)[depth]; |
|
|
163 | |
|
|
164 | av_push (excl, newSVuv (PTR2UV (pad))); /* exclude pads themselves from being found */ |
|
|
165 | |
|
|
166 | /* The 0th pad slot is @_ */ |
|
|
167 | if (AvARRAY (pad)[0] == targ) |
|
|
168 | res_pair ("the argument array for"); |
|
|
169 | |
|
|
170 | for (i = AvFILLp (pad) + 1; --i; ) |
|
|
171 | if (AvARRAY (pad)[i] == targ) |
|
|
172 | { |
|
|
173 | /* Values from constant functions are stored in the pad without any name */ |
|
|
174 | SV *name_sv = AvARRAY (AvARRAY (padlist)[0])[i]; |
|
|
175 | |
|
|
176 | if (name_sv && SvPOK (name_sv)) |
|
|
177 | res_pair (form ("in the lexical '%s' in", SvPVX (name_sv))); |
|
|
178 | else |
|
|
179 | res_pair ("in an unnamed lexical in"); |
|
|
180 | } |
|
|
181 | |
|
|
182 | --depth; |
|
|
183 | } |
|
|
184 | } |
|
|
185 | |
|
|
186 | if (CvCONST (sv) && (SV*)CvXSUBANY (sv).any_ptr == targ) |
|
|
187 | res_pair ("the constant value of"); |
|
|
188 | |
|
|
189 | if (!CvWEAKOUTSIDE (sv) && (SV*)CvOUTSIDE (sv) == targ) |
|
|
190 | res_pair ("the containing scope for"); |
|
|
191 | |
|
|
192 | if (sv == targ && CvANON (sv)) |
|
|
193 | if (CvSTART (sv) |
|
|
194 | && CvSTART (sv)->op_type == OP_NEXTSTATE |
|
|
195 | && CopLINE ((COP *)CvSTART (sv))) |
|
|
196 | res_text (form ("the closure created at %s:%d", |
|
|
197 | CopFILE ((COP *)CvSTART (sv)) ? CopFILE ((COP *)CvSTART (sv)) : "<unknown>", |
|
|
198 | CopLINE ((COP *)CvSTART (sv)))); |
|
|
199 | else |
|
|
200 | res_text (form ("the closure created somewhere in file %s (PLEASE REPORT!)", |
|
|
201 | CvFILE (sv) ? CvFILE (sv) : "<unknown>")); |
99 | } |
202 | } |
|
|
203 | |
|
|
204 | break; |
|
|
205 | |
|
|
206 | case SVt_PVGV: |
|
|
207 | if (GvGP (sv)) |
|
|
208 | { |
|
|
209 | if (GvSV (sv) == (SV *)targ) res_gv ('$'); |
|
|
210 | if (GvAV (sv) == (AV *)targ) res_gv ('@'); |
|
|
211 | if (GvHV (sv) == (HV *)targ) res_gv ('%'); |
|
|
212 | if (GvCV (sv) == (CV *)targ) res_gv ('&'); |
|
|
213 | } |
|
|
214 | |
|
|
215 | break; |
|
|
216 | |
|
|
217 | case SVt_PVLV: |
|
|
218 | if (LvTARG (sv) == targ) |
|
|
219 | { |
|
|
220 | if (LvTYPE (sv) == 'y') |
|
|
221 | { |
|
|
222 | MAGIC *mg = mg_find (sv, PERL_MAGIC_defelem); |
|
|
223 | |
|
|
224 | if (mg && mg->mg_obj) |
|
|
225 | res_pair (form ("the target for the lvalue hash element '%.*s',", |
|
|
226 | SvCUR (mg->mg_obj), SvPV_nolen (mg->mg_obj))); |
|
|
227 | else |
|
|
228 | res_pair (form ("the target for the lvalue array element #%d,", LvTARGOFF (sv))); |
|
|
229 | } |
|
|
230 | else |
|
|
231 | res_pair (form ("an lvalue reference target (type '%c', ofs %d, len %d),", |
|
|
232 | LvTYPE (sv), LvTARGOFF (sv), LvTARGLEN (sv))); |
|
|
233 | } |
|
|
234 | |
|
|
235 | break; |
100 | } |
236 | } |
|
|
237 | |
|
|
238 | if (rmagical) |
|
|
239 | SvRMAGICAL_on (sv); |
101 | } |
240 | } |
102 | |
|
|
103 | if (SvROK (sv)) |
|
|
104 | { |
|
|
105 | if (SvRV (sv) == targ && !SvWEAKREF (sv) && sv != target_ref) |
|
|
106 | res_pair ("referenced by"); |
|
|
107 | } |
|
|
108 | else |
|
|
109 | switch (SvTYPE (sv)) |
|
|
110 | { |
|
|
111 | case SVt_PVAV: |
|
|
112 | if (AvREAL (sv)) |
|
|
113 | for (i = AvFILLp (sv) + 1; i--; ) |
|
|
114 | if (AvARRAY (sv)[i] == targ) |
|
|
115 | res_pair (form ("in array element %d of", i)); |
|
|
116 | |
|
|
117 | break; |
|
|
118 | |
|
|
119 | case SVt_PVHV: |
|
|
120 | if (hv_iterinit ((HV *)sv)) |
|
|
121 | { |
|
|
122 | HE *he; |
|
|
123 | |
|
|
124 | while ((he = hv_iternext ((HV *)sv))) |
|
|
125 | if (HeVAL (he) == targ) |
|
|
126 | res_pair (form ("in the member '%.*s' of", HeKLEN (he), HeKEY (he))); |
|
|
127 | } |
|
|
128 | |
|
|
129 | break; |
|
|
130 | |
|
|
131 | case SVt_PVCV: |
|
|
132 | { |
|
|
133 | int depth = CvDEPTH (sv); |
|
|
134 | |
|
|
135 | /* Anonymous subs have a padlist but zero depth */ |
|
|
136 | if (CvANON (sv) && !depth && CvPADLIST (sv)) |
|
|
137 | depth = 1; |
|
|
138 | |
|
|
139 | if (depth) |
|
|
140 | { |
|
|
141 | AV *padlist = CvPADLIST (sv); |
|
|
142 | |
|
|
143 | while (depth) |
|
|
144 | { |
|
|
145 | AV *pad = (AV *)AvARRAY (padlist)[depth]; |
|
|
146 | |
|
|
147 | av_push (excl, newSVuv (PTR2UV (pad))); /* exclude pads themselves from being found */ |
|
|
148 | |
|
|
149 | /* The 0th pad slot is @_ */ |
|
|
150 | if (AvARRAY (pad)[0] == targ) |
|
|
151 | res_pair ("the argument array for"); |
|
|
152 | |
|
|
153 | for (i = AvFILLp (pad) + 1; --i; ) |
|
|
154 | if (AvARRAY (pad)[i] == targ) |
|
|
155 | { |
|
|
156 | /* Values from constant functions are stored in the pad without any name */ |
|
|
157 | SV *name_sv = AvARRAY (AvARRAY (padlist)[0])[i]; |
|
|
158 | |
|
|
159 | if (name_sv && SvPOK (name_sv)) |
|
|
160 | res_pair (form ("in the lexical '%s' in", SvPVX (name_sv))); |
|
|
161 | else |
|
|
162 | res_pair ("in an unnamed lexical in"); |
|
|
163 | } |
|
|
164 | |
|
|
165 | --depth; |
|
|
166 | } |
|
|
167 | } |
|
|
168 | |
|
|
169 | if (CvCONST (sv) && (SV*)CvXSUBANY (sv).any_ptr == targ) |
|
|
170 | res_pair ("the constant value of"); |
|
|
171 | |
|
|
172 | if (!CvWEAKOUTSIDE (sv) && (SV*)CvOUTSIDE (sv) == targ) |
|
|
173 | res_pair ("the containing scope for"); |
|
|
174 | |
|
|
175 | if (sv == targ && CvANON (sv)) |
|
|
176 | if (CvSTART (sv) |
|
|
177 | && CvSTART (sv)->op_type == OP_NEXTSTATE |
|
|
178 | && CopLINE ((COP *)CvSTART (sv))) |
|
|
179 | res_text (form ("the closure created at %s:%d", |
|
|
180 | CopFILE ((COP *)CvSTART (sv)) ? CopFILE ((COP *)CvSTART (sv)) : "<unknown>", |
|
|
181 | CopLINE ((COP *)CvSTART (sv)))); |
|
|
182 | else |
|
|
183 | res_text (form ("the closure created somewhere in file %s (PLEASE REPORT!)", |
|
|
184 | CvFILE (sv) ? CvFILE (sv) : "<unknown>")); |
|
|
185 | } |
|
|
186 | |
|
|
187 | break; |
|
|
188 | |
|
|
189 | case SVt_PVGV: |
|
|
190 | if (GvGP (sv)) |
|
|
191 | { |
|
|
192 | if (GvSV (sv) == (SV *)targ) res_gv ('$'); |
|
|
193 | if (GvAV (sv) == (AV *)targ) res_gv ('@'); |
|
|
194 | if (GvHV (sv) == (HV *)targ) res_gv ('%'); |
|
|
195 | if (GvCV (sv) == (CV *)targ) res_gv ('&'); |
|
|
196 | } |
|
|
197 | |
|
|
198 | break; |
|
|
199 | } |
|
|
200 | |
|
|
201 | if (rmagical) |
|
|
202 | SvRMAGICAL_on (sv); |
|
|
203 | } |
241 | } |
|
|
242 | |
|
|
243 | /* look at the mortalise stack of the current coroutine */ |
|
|
244 | for (i = 0; i <= PL_tmps_ix; ++i) |
|
|
245 | if (PL_tmps_stack [i] == targ) |
|
|
246 | res_text ("a temporary on the stack"); |
|
|
247 | |
|
|
248 | if (targ == (SV*)PL_main_cv) |
|
|
249 | res_text ("the main body of the program"); |
204 | } |
250 | } |
205 | |
|
|
206 | /* look at the mortalise stack of the current coroutine */ |
|
|
207 | for (i = 0; i <= PL_tmps_ix; ++i) |
|
|
208 | if (PL_tmps_stack [i] == targ) |
|
|
209 | res_text ("a temporary on the stack"); |
|
|
210 | |
|
|
211 | if (targ == (SV*)PL_main_cv) |
|
|
212 | res_text ("the main body of the program"); |
|
|
213 | |
251 | |
214 | EXTEND (SP, 2); |
252 | EXTEND (SP, 2); |
215 | PUSHs (sv_2mortal (newRV_noinc ((SV *)about))); |
253 | PUSHs (sv_2mortal (newRV_noinc ((SV *)about))); |
216 | PUSHs (sv_2mortal (newRV_noinc ((SV *)excl))); |
254 | PUSHs (sv_2mortal (newRV_noinc ((SV *)excl))); |
217 | } |
255 | } |
… | |
… | |
224 | RETVAL |
262 | RETVAL |
225 | |
263 | |
226 | UV |
264 | UV |
227 | ref2ptr (SV *rv) |
265 | ref2ptr (SV *rv) |
228 | CODE: |
266 | CODE: |
|
|
267 | if (!SvROK (rv)) |
|
|
268 | croak ("argument to Devel::FindRef::ref2ptr must be a reference"); |
229 | RETVAL = PTR2UV (SvRV (rv)); |
269 | RETVAL = PTR2UV (SvRV (rv)); |
230 | OUTPUT: |
270 | OUTPUT: |
231 | RETVAL |
271 | RETVAL |
232 | |
272 | |
233 | U32 |
273 | U32 |
234 | _refcnt (SV *rv) |
274 | _refcnt (SV *rv) |
235 | CODE: |
275 | CODE: |
|
|
276 | if (!SvROK (rv)) |
|
|
277 | croak ("argument to Devel::FindRef::_refcnt must be a reference"); |
236 | RETVAL = SvREFCNT (SvRV (rv)); |
278 | RETVAL = SvREFCNT (SvRV (rv)); |
237 | OUTPUT: |
279 | OUTPUT: |
238 | RETVAL |
280 | RETVAL |