| … | |
… | |
| 10 | |
10 | |
| 11 | #if !PERL_VERSION_ATLEAST (5,8,9) |
11 | #if !PERL_VERSION_ATLEAST (5,8,9) |
| 12 | # define SVt_LAST 16 |
12 | # define SVt_LAST 16 |
| 13 | #endif |
13 | #endif |
| 14 | |
14 | |
|
|
15 | #if !PERL_VERSION_ATLEAST (5,10,0) |
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|
16 | # define SvPAD_OUR(dummy) 0 |
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|
17 | #endif |
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|
18 | |
| 15 | #define res_pair(text) \ |
19 | #define res_pair(text) \ |
| 16 | { \ |
20 | do { \ |
| 17 | AV *av = newAV (); \ |
21 | AV *av = newAV (); \ |
| 18 | av_push (av, newSVpv (text, 0)); \ |
22 | av_push (av, newSVpv (text, 0)); \ |
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|
23 | if (rmagical) SvRMAGICAL_on (sv); \ |
| 19 | av_push (av, sv_rvweaken (newRV_inc (sv))); \ |
24 | av_push (av, sv_rvweaken (newRV_inc (sv))); \ |
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|
25 | if (rmagical) SvRMAGICAL_off (sv); \ |
| 20 | av_push (about, newRV_noinc ((SV *)av)); \ |
26 | av_push (about, newRV_noinc ((SV *)av)); \ |
| 21 | } |
27 | } while (0) |
| 22 | |
28 | |
| 23 | #define res_gv(sigil) \ |
29 | #define res_gv(sigil) \ |
| 24 | { \ |
30 | do { \ |
| 25 | AV *av = newAV (); \ |
31 | AV *av = newAV (); \ |
| 26 | av_push (av, newSVpv (form ("in the global %c%s::%.*s", sigil, \ |
32 | av_push (av, newSVpv (form ("in the global %c%s::%.*s", sigil, \ |
| 27 | HvNAME (GvSTASH (sv)), \ |
33 | HvNAME (GvSTASH (sv)), \ |
| 28 | GvNAMELEN (sv), GvNAME (sv) ? GvNAME (sv) : "<anonymous>"), \ |
34 | GvNAMELEN (sv), GvNAME (sv) ? GvNAME (sv) : "<anonymous>"), \ |
| 29 | 0)); \ |
35 | 0)); \ |
| 30 | av_push (about, newRV_noinc ((SV *)av)); \ |
36 | av_push (about, newRV_noinc ((SV *)av)); \ |
| 31 | } |
37 | } while (0) |
| 32 | |
38 | |
| 33 | MODULE = Devel::FindRef PACKAGE = Devel::FindRef |
39 | MODULE = Devel::FindRef PACKAGE = Devel::FindRef |
| 34 | |
40 | |
| 35 | PROTOTYPES: ENABLE |
41 | PROTOTYPES: ENABLE |
| 36 | |
42 | |
| … | |
… | |
| 44 | void |
50 | void |
| 45 | find_ (SV *target) |
51 | find_ (SV *target) |
| 46 | PPCODE: |
52 | PPCODE: |
| 47 | { |
53 | { |
| 48 | SV *arena, *targ; |
54 | SV *arena, *targ; |
| 49 | int rmagical, i; |
55 | U32 rmagical; |
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|
56 | int i; |
| 50 | AV *about = newAV (); |
57 | AV *about = newAV (); |
| 51 | AV *excl = newAV (); |
58 | AV *excl = newAV (); |
| 52 | |
59 | |
| 53 | if (!SvROK (target)) |
60 | if (!SvROK (target)) |
| 54 | croak ("find expects a reference to a perl value"); |
61 | croak ("find expects a reference to a perl value"); |
| … | |
… | |
| 72 | if ((rmagical = SvRMAGICAL (sv))) |
79 | if ((rmagical = SvRMAGICAL (sv))) |
| 73 | SvRMAGICAL_off (sv); |
80 | SvRMAGICAL_off (sv); |
| 74 | |
81 | |
| 75 | if (SvTYPE (sv) >= SVt_PVMG) |
82 | if (SvTYPE (sv) >= SVt_PVMG) |
| 76 | { |
83 | { |
| 77 | MAGIC *mg = SvMAGIC (sv); |
84 | |
| 78 | while (mg) |
85 | if (SvTYPE (sv) == SVt_PVMG && SvPAD_OUR (sv)) |
| 79 | { |
86 | { |
|
|
87 | /* I have no clue what this is */ |
|
|
88 | /* maybe some placeholder for our variables for eval? */ |
|
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89 | /* it doesn'T seem to reference anything, so we should be able to ignore it */ |
|
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90 | } |
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91 | else |
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92 | { |
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|
93 | MAGIC *mg = SvMAGIC (sv); |
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94 | |
|
|
95 | while (mg) |
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|
96 | { |
| 80 | if (mg->mg_obj == targ) |
97 | if (mg->mg_obj == targ) |
| 81 | res_pair (form ("referenced (in mg_obj) by '%c' type magic attached to", mg->mg_type)); |
98 | res_pair (form ("referenced (in mg_obj) by '%c' type magic attached to", mg->mg_type)); |
| 82 | |
99 | |
| 83 | if ((SV *)mg->mg_ptr == targ && mg->mg_flags & MGf_REFCOUNTED) |
100 | if ((SV *)mg->mg_ptr == targ && mg->mg_flags & MGf_REFCOUNTED) |
| 84 | res_pair (form ("referenced (in mg_ptr) by '%c' type magic attached to", mg->mg_type)); |
101 | res_pair (form ("referenced (in mg_ptr) by '%c' type magic attached to", mg->mg_type)); |
| 85 | |
102 | |
| 86 | mg = mg->mg_moremagic; |
103 | mg = mg->mg_moremagic; |
|
|
104 | } |
| 87 | } |
105 | } |
| 88 | } |
106 | } |
| 89 | |
107 | |
| 90 | if (SvROK (sv)) |
108 | if (SvROK (sv)) |
| 91 | { |
109 | { |
| … | |
… | |
| 117 | |
135 | |
| 118 | case SVt_PVCV: |
136 | case SVt_PVCV: |
| 119 | { |
137 | { |
| 120 | int depth = CvDEPTH (sv); |
138 | int depth = CvDEPTH (sv); |
| 121 | |
139 | |
|
|
140 | /* Anonymous subs have a padlist but zero depth */ |
|
|
141 | if (!depth && CvPADLIST (sv)) |
|
|
142 | depth = 1; |
|
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143 | |
| 122 | if (depth) |
144 | if (depth) |
| 123 | { |
145 | { |
| 124 | AV *padlist = CvPADLIST (sv); |
146 | AV *padlist = CvPADLIST (sv); |
| 125 | |
147 | |
| 126 | while (depth) |
148 | while (depth) |
| 127 | { |
149 | { |
| 128 | AV *pad = (AV *)AvARRAY (padlist)[depth]; |
150 | AV *pad = (AV *)AvARRAY (padlist)[depth]; |
| 129 | |
151 | |
| 130 | av_push (excl, newSVuv (PTR2UV (pad))); /* exclude pads themselves from being found */ |
152 | av_push (excl, newSVuv (PTR2UV (pad))); /* exclude pads themselves from being found */ |
| 131 | |
153 | |
| 132 | for (i = AvFILLp (pad); i--; ) |
154 | for (i = AvFILLp (pad) + 1; i--; ) |
| 133 | if (AvARRAY (pad)[i] == targ) |
155 | if (AvARRAY (pad)[i] == targ) |
|
|
156 | { |
|
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157 | /* Values from constant functions are stored in the pad without any name */ |
|
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158 | SV *name_sv = AvARRAY (AvARRAY (padlist)[0])[i]; |
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159 | |
|
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160 | if (name_sv && SvPOK (name_sv)) |
| 134 | res_pair (form ("in the lexical '%s' in", SvPVX (AvARRAY (AvARRAY (padlist)[0])[i]))); |
161 | res_pair (form ("in the lexical '%s' in", SvPVX (name_sv))); |
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162 | else |
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163 | res_pair ("in an unnamed lexical in"); |
|
|
164 | } |
| 135 | |
165 | |
| 136 | --depth; |
166 | --depth; |
| 137 | } |
167 | } |
| 138 | } |
168 | } |
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169 | |
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170 | if (CvCONST (sv) && (SV*)CvXSUBANY (sv).any_ptr == targ) |
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171 | res_pair ("the constant value of"); |
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172 | |
|
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173 | if (!CvWEAKOUTSIDE (sv) && (SV*)CvOUTSIDE (sv) == targ) |
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174 | res_pair ("the containing scope for"); |
| 139 | } |
175 | } |
| 140 | |
176 | |
| 141 | break; |
177 | break; |
| 142 | |
178 | |
| 143 | case SVt_PVGV: |
179 | case SVt_PVGV: |
