12 VAR_GLOB, /* TODO: unimplemented */
13 VAR_FORMAT /* TODO: unimplemented */
22 const char *vartype_to_string(vartype_t type)
40 I32 vartype_to_svtype(vartype_t type)
44 return SVt_PV; /* or whatever */
58 vartype_t string_to_vartype(char *vartype)
60 if (strEQ(vartype, "SCALAR")) {
63 else if (strEQ(vartype, "ARRAY")) {
66 else if (strEQ(vartype, "HASH")) {
69 else if (strEQ(vartype, "CODE")) {
72 else if (strEQ(vartype, "IO")) {
76 croak("Type must be one of 'SCALAR', 'ARRAY', 'HASH', 'CODE', or 'IO'");
80 void _deconstruct_variable_name(char *variable, varspec_t *varspec)
82 if (!variable || !variable[0])
83 croak("You must pass a variable name");
85 varspec->type = VAR_NONE;
87 switch (variable[0]) {
89 varspec->type = VAR_SCALAR;
92 varspec->type = VAR_ARRAY;
95 varspec->type = VAR_HASH;
98 varspec->type = VAR_CODE;
102 if (varspec->type != VAR_NONE) {
103 varspec->sigil = variable[0];
104 varspec->name = &variable[1];
107 varspec->type = VAR_IO;
108 varspec->sigil = '\0';
109 varspec->name = variable;
113 void _deconstruct_variable_hash(HV *variable, varspec_t *varspec)
118 val = hv_fetch(variable, "name", 4, 0);
120 croak("The 'name' key is required in variable specs");
122 varspec->name = savesvpv(*val);
124 val = hv_fetch(variable, "sigil", 5, 0);
126 croak("The 'sigil' key is required in variable specs");
128 varspec->sigil = (SvPV_nolen(*val))[0];
130 val = hv_fetch(variable, "type", 4, 0);
132 croak("The 'type' key is required in variable specs");
134 varspec->type = string_to_vartype(SvPV_nolen(*val));
137 int _valid_for_type(SV *value, vartype_t type)
139 svtype sv_type = SvROK(value) ? SvTYPE(SvRV(value)) : SVt_NULL;
143 return sv_type == SVt_NULL ||
149 return sv_type == SVt_PVAV;
151 return sv_type == SVt_PVHV;
153 return sv_type == SVt_PVCV;
155 return sv_type == SVt_PVIO;
161 HV *_get_namespace(SV *self)
170 call_method("namespace", G_SCALAR);
176 return (HV*)SvRV(ret);
179 SV *_get_name(SV *self)
188 call_method("name", G_SCALAR);
197 MODULE = Package::Stash PACKAGE = Package::Stash
202 new(class, package_name)
209 if (!SvPOK(package_name))
210 croak("The constructor argument must be the name of a package");
214 hv_store(instance, "name", 4, package_name, 0);
215 namespace = gv_stashpv(SvPV_nolen(package_name), GV_ADD);
216 hv_store(instance, "namespace", 9, newRV((SV*)namespace), 0);
218 RETVAL = sv_bless(newRV((SV*)instance), gv_stashpv(class, 0));
228 if (!sv_isobject(self))
229 croak("Can't call name as a class method");
230 slot = hv_fetch((HV*)SvRV(self), "name", 4, 0);
231 RETVAL = slot ? SvREFCNT_inc(*slot) : &PL_sv_undef;
241 if (!sv_isobject(self))
242 croak("Can't call namespace as a class method");
243 slot = hv_fetch((HV*)SvRV(self), "namespace", 9, 0);
244 RETVAL = slot ? SvREFCNT_inc(*slot) : &PL_sv_undef;
249 add_package_symbol(self, variable, initial=NULL, ...)
257 if (initial && !_valid_for_type(initial, variable.type))
258 croak("%s is not of type %s",
259 SvPV_nolen(initial), vartype_to_string(variable.type));
261 name = newSVsv(_get_name(self));
262 sv_catpvs(name, "::");
263 sv_catpv(name, variable.name);
265 /* XXX: come back to this when i feel like reimplementing caller() */
267 my $filename = $opts{filename};
268 my $first_line_num = $opts{first_line_num};
270 (undef, $filename, $first_line_num) = caller
271 if not defined $filename;
273 my $last_line_num = $opts{last_line_num} || ($first_line_num ||= 0);
275 # http://perldoc.perl.org/perldebguts.html#Debugger-Internals
276 $DB::sub{$pkg . '::' . $name} = "$filename:$first_line_num-$last_line_num";
279 if (items > 2 && (PL_perldb & 0x10) && variable.type == VAR_CODE) {
281 char *filename = NULL, *name;
282 I32 first_line_num, last_line_num;
285 croak("add_package_symbol: Odd number of elements in %%opts");
287 for (i = 3; i < items; i += 2) {
289 key = SvPV_nolen(ST(i));
290 if (strEQ(key, "filename")) {
291 if (!SvPOK(ST(i + 1)))
292 croak("add_package_symbol: filename must be a string");
293 filename = SvPV_nolen(ST(i + 1));
295 else if (strEQ(key, "first_line_num")) {
296 if (!SvIOK(ST(i + 1)))
297 croak("add_package_symbol: first_line_num must be an integer");
298 first_line_num = SvIV(ST(i + 1));
300 else if (strEQ(key, "last_line_num")) {
301 if (!SvIOK(ST(i + 1)))
302 croak("add_package_symbol: last_line_num must be an integer");
303 last_line_num = SvIV(ST(i + 1));
312 glob = gv_fetchsv(name, GV_ADD, vartype_to_svtype(variable.type));
317 if (SvROK(initial)) {
322 val = newSVsv(initial);
325 switch (variable.type) {
330 GvAV(glob) = (AV*)val;
333 GvHV(glob) = (HV*)val;
336 GvCV(glob) = (CV*)val;
339 GvIOp(glob) = (IO*)val;
345 remove_package_glob(self, name)
349 hv_delete(_get_namespace(self), name, strlen(name), G_DISCARD);
352 has_package_symbol(self, variable)
359 namespace = _get_namespace(self);
360 entry = hv_fetch(namespace, variable.name, strlen(variable.name), 0);
365 GV *glob = (GV*)(*entry);
366 switch (variable.type) {
368 RETVAL = GvSV(glob) ? 1 : 0;
371 RETVAL = GvAV(glob) ? 1 : 0;
374 RETVAL = GvHV(glob) ? 1 : 0;
377 RETVAL = GvCV(glob) ? 1 : 0;
380 RETVAL = GvIO(glob) ? 1 : 0;
385 RETVAL = (variable.type == VAR_CODE);
391 remove_package_symbol(self, variable)
398 namespace = _get_namespace(self);
399 entry = hv_fetch(namespace, variable.name, strlen(variable.name), 0);
404 GV *glob = (GV*)(*entry);
405 switch (variable.type) {
419 GvIOp(glob) = Null(IO*);
424 if (variable.type == VAR_CODE) {
425 hv_delete(namespace, variable.name, strlen(variable.name), G_DISCARD);
430 list_all_package_symbols(self, vartype=VAR_NONE)
434 if (vartype == VAR_NONE) {
439 namespace = _get_namespace(self);
440 keys = hv_iterinit(namespace);
442 while (entry = hv_iternext(namespace)) {
443 mPUSHs(newSVhek(HeKEY_hek(entry)));
453 namespace = _get_namespace(self);
454 hv_iterinit(namespace);
455 while (val = hv_iternextsv(namespace, &key, &len)) {
481 else if (vartype == VAR_CODE) {