2 * class.c: Class management for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
7 * (C) 2001-2006 Novell, Inc.
16 #include <mono/metadata/image.h>
17 #include <mono/metadata/assembly.h>
18 #include <mono/metadata/cil-coff.h>
19 #include <mono/metadata/metadata.h>
20 #include <mono/metadata/metadata-internals.h>
21 #include <mono/metadata/tabledefs.h>
22 #include <mono/metadata/tokentype.h>
23 #include <mono/metadata/class-internals.h>
24 #include <mono/metadata/object.h>
25 #include <mono/metadata/appdomain.h>
26 #include <mono/metadata/mono-endian.h>
27 #include <mono/metadata/debug-helpers.h>
28 #include <mono/metadata/reflection.h>
29 #include <mono/metadata/exception.h>
30 #include <mono/metadata/security-manager.h>
31 #include <mono/os/gc_wrapper.h>
32 #include <mono/utils/mono-counters.h>
36 gboolean mono_print_vtable = FALSE;
38 /* Function supplied by the runtime to find classes by name using information from the AOT file */
39 static MonoGetClassFromName get_class_from_name = NULL;
41 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
42 static void mono_class_create_generic (MonoInflatedGenericClass *gclass);
43 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
45 void (*mono_debugger_start_class_init_func) (MonoClass *klass) = NULL;
46 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
49 * mono_class_from_typeref:
51 * @type_token: a TypeRef token
53 * Creates the MonoClass* structure representing the type defined by
54 * the typeref token valid inside @image.
55 * Returns: the MonoClass* representing the typeref token, NULL ifcould
59 mono_class_from_typeref (MonoImage *image, guint32 type_token)
61 guint32 cols [MONO_TYPEREF_SIZE];
62 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
64 const char *name, *nspace;
66 MonoAssembly **references;
68 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
70 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
71 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
73 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
74 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
75 case MONO_RESOLTION_SCOPE_MODULE:
77 g_error ("null ResolutionScope not yet handled");
78 /* a typedef in disguise */
79 return mono_class_from_name (image, nspace, name);
80 case MONO_RESOLTION_SCOPE_MODULEREF:
81 if (image->modules [idx-1])
82 return mono_class_from_name (image->modules [idx - 1], nspace, name);
84 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
87 human_name = mono_stringify_assembly_name (&image->assembly->aname);
88 mono_loader_set_error_type_load (msg, human_name);
94 case MONO_RESOLTION_SCOPE_TYPEREF: {
95 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
98 if (enclosing->inited) {
99 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
100 for (tmp = enclosing->nested_classes; tmp; tmp = tmp->next) {
102 if (strcmp (res->name, name) == 0)
106 /* Don't call mono_class_init as we might've been called by it recursively */
107 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
109 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
110 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
111 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
113 if (strcmp (nname, name) == 0)
114 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
116 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
119 g_warning ("TypeRef ResolutionScope not yet handled (%d)", idx);
122 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
126 references = image->references;
127 if (!references [idx - 1])
128 mono_assembly_load_reference (image, idx - 1);
129 /* If this assert fails, it probably means that you haven't installed an assembly load/search hook */
130 g_assert (references == image->references);
131 g_assert (references [idx - 1]);
133 /* If the assembly did not load, register this as a type load exception */
134 if (references [idx - 1] == REFERENCE_MISSING){
135 MonoAssemblyName aname;
138 mono_assembly_get_assemblyref (image, idx - 1, &aname);
139 human_name = mono_stringify_assembly_name (&aname);
140 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
146 return mono_class_from_name (references [idx - 1]->image, nspace, name);
149 static inline MonoType*
150 dup_type (MonoType* t, const MonoType *original)
152 MonoType *r = g_new0 (MonoType, 1);
154 r->attrs = original->attrs;
155 r->byref = original->byref;
156 if (t->type == MONO_TYPE_PTR)
157 t->data.type = dup_type (t->data.type, original->data.type);
158 else if (t->type == MONO_TYPE_ARRAY)
159 t->data.array = mono_dup_array_type (t->data.array);
160 else if (t->type == MONO_TYPE_FNPTR)
161 t->data.method = mono_metadata_signature_deep_dup (t->data.method);
162 mono_stats.generics_metadata_size += sizeof (MonoType);
166 /* Copy everything mono_metadata_free_array free. */
168 mono_dup_array_type (MonoArrayType *a)
170 a = g_memdup (a, sizeof (MonoArrayType));
172 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
174 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
178 /* Copy everything mono_metadata_free_method_signature free. */
180 mono_metadata_signature_deep_dup (MonoMethodSignature *sig)
184 sig = mono_metadata_signature_dup (sig);
186 sig->ret = dup_type (sig->ret, sig->ret);
187 for (i = 0; i < sig->param_count; ++i)
188 sig->params [i] = dup_type (sig->params [i], sig->params [i]);
194 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
196 MonoAssembly *ta = klass->image->assembly;
198 g_string_append_printf (
199 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s",
201 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
202 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
203 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null");
207 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
208 MonoTypeNameFormat format)
212 switch (type->type) {
213 case MONO_TYPE_ARRAY: {
214 int i, rank = type->data.array->rank;
215 MonoTypeNameFormat nested_format;
217 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
218 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
220 mono_type_get_name_recurse (
221 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
222 g_string_append_c (str, '[');
224 g_string_append_c (str, '*');
225 for (i = 1; i < rank; i++)
226 g_string_append_c (str, ',');
227 g_string_append_c (str, ']');
228 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
229 _mono_type_get_assembly_name (type->data.array->eklass, str);
232 case MONO_TYPE_SZARRAY: {
233 MonoTypeNameFormat nested_format;
235 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
236 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
238 mono_type_get_name_recurse (
239 &type->data.klass->byval_arg, str, FALSE, nested_format);
240 g_string_append (str, "[]");
241 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
242 _mono_type_get_assembly_name (type->data.klass, str);
245 case MONO_TYPE_PTR: {
246 MonoTypeNameFormat nested_format;
248 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
249 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
251 mono_type_get_name_recurse (
252 type->data.type, str, FALSE, nested_format);
253 g_string_append (str, "*");
254 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
255 _mono_type_get_assembly_name (type->data.klass, str);
260 g_assert (type->data.generic_param->name);
261 g_string_append (str, type->data.generic_param->name);
264 klass = mono_class_from_mono_type (type);
265 if (klass->nested_in) {
266 mono_type_get_name_recurse (
267 &klass->nested_in->byval_arg, str, TRUE, format);
268 if (format == MONO_TYPE_NAME_FORMAT_IL)
269 g_string_append_c (str, '.');
271 g_string_append_c (str, '+');
272 } else if (*klass->name_space) {
273 g_string_append (str, klass->name_space);
274 g_string_append_c (str, '.');
276 if (format == MONO_TYPE_NAME_FORMAT_IL) {
277 char *s = strchr (klass->name, '`');
278 int len = s ? s - klass->name : strlen (klass->name);
280 g_string_append_len (str, klass->name, len);
282 g_string_append (str, klass->name);
285 if (klass->generic_class) {
286 MonoGenericClass *gclass = klass->generic_class;
287 MonoTypeNameFormat nested_format;
290 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
291 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
293 if (format == MONO_TYPE_NAME_FORMAT_IL)
294 g_string_append_c (str, '<');
296 g_string_append_c (str, '[');
297 for (i = 0; i < gclass->inst->type_argc; i++) {
298 MonoType *t = gclass->inst->type_argv [i];
301 g_string_append_c (str, ',');
302 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
303 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
304 g_string_append_c (str, '[');
305 mono_type_get_name_recurse (
306 gclass->inst->type_argv [i], str, FALSE, nested_format);
307 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
308 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
309 g_string_append_c (str, ']');
311 if (format == MONO_TYPE_NAME_FORMAT_IL)
312 g_string_append_c (str, '>');
314 g_string_append_c (str, ']');
315 } else if (klass->generic_container &&
316 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
317 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
320 if (format == MONO_TYPE_NAME_FORMAT_IL)
321 g_string_append_c (str, '<');
323 g_string_append_c (str, '[');
324 for (i = 0; i < klass->generic_container->type_argc; i++) {
326 g_string_append_c (str, ',');
327 g_string_append (str, klass->generic_container->type_params [i].name);
329 if (format == MONO_TYPE_NAME_FORMAT_IL)
330 g_string_append_c (str, '>');
332 g_string_append_c (str, ']');
334 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
335 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
336 _mono_type_get_assembly_name (klass, str);
342 * mono_type_get_name:
344 * @format: the format for the return string.
347 * Returns: the string representation in a number of formats:
349 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
350 * returned in the formatrequired by System.Reflection, this is the
351 * inverse of mono_reflection_parse_type ().
353 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
354 * be used by the IL assembler.
356 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
358 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
361 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
365 result = g_string_new ("");
367 mono_type_get_name_recurse (type, result, FALSE, format);
370 g_string_append_c (result, '&');
372 return g_string_free (result, FALSE);
376 * mono_type_get_full_name:
379 * Returns: the string representation for type as required by System.Reflection.
380 * The inverse of mono_reflection_parse_type ().
383 mono_type_get_full_name (MonoClass *class)
385 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
389 * mono_type_get_name:
392 * Returns: the string representation for type as it would be represented in IL code.
395 mono_type_get_name (MonoType *type)
397 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
401 * mono_type_get_underlying_type:
404 * Returns: the MonoType for the underlying interger type if @type
405 * is an enum, otherwise the type itself.
408 mono_type_get_underlying_type (MonoType *type)
410 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype)
411 return type->data.klass->enum_basetype;
416 * mono_class_is_open_constructed_type:
419 * Returns TRUE if type represents a generics open constructed type
420 * (not all the type parameters required for the instantiation have
424 mono_class_is_open_constructed_type (MonoType *t)
430 case MONO_TYPE_SZARRAY:
431 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
432 case MONO_TYPE_ARRAY:
433 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
435 return mono_class_is_open_constructed_type (t->data.type);
436 case MONO_TYPE_GENERICINST: {
437 MonoGenericClass *gclass = t->data.generic_class;
440 if (mono_class_is_open_constructed_type (&gclass->container_class->byval_arg))
442 for (i = 0; i < gclass->inst->type_argc; i++)
443 if (mono_class_is_open_constructed_type (gclass->inst->type_argv [i]))
452 static MonoGenericClass *
453 inflate_generic_class (MonoGenericClass *ogclass, MonoGenericContext *context)
455 MonoInflatedGenericClass *igclass;
456 MonoGenericClass *ngclass, *cached;
457 MonoGenericInst *ninst;
459 ninst = mono_metadata_inflate_generic_inst (ogclass->inst, context);
460 if (ninst == ogclass->inst)
463 if (ogclass->is_dynamic) {
464 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
465 igclass = &dgclass->generic_class;
466 ngclass = &igclass->generic_class;
467 ngclass->is_inflated = 1;
468 ngclass->is_dynamic = 1;
470 igclass = g_new0 (MonoInflatedGenericClass, 1);
471 ngclass = &igclass->generic_class;
472 ngclass->is_inflated = 1;
477 ngclass->inst = ninst;
479 igclass->klass = NULL;
481 ngclass->context = g_new0 (MonoGenericContext, 1);
482 ngclass->context->container = ngclass->container_class->generic_container;
483 ngclass->context->gclass = ngclass;
486 cached = mono_metadata_lookup_generic_class (ngclass);
487 mono_loader_unlock ();
489 g_free (ngclass->context);
498 inflate_generic_type (MonoType *type, MonoGenericContext *context)
500 switch (type->type) {
501 case MONO_TYPE_MVAR: {
502 int num = type->data.generic_param->num;
503 MonoGenericInst *inst = context->gmethod ? context->gmethod->inst : NULL;
504 if (!inst || !inst->type_argv)
506 if (num >= inst->type_argc)
507 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
508 return dup_type (inst->type_argv [num], type);
510 case MONO_TYPE_VAR: {
511 int num = type->data.generic_param->num;
512 MonoGenericInst *inst = context->gclass ? context->gclass->inst : NULL;
515 if (num >= inst->type_argc)
516 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
517 return dup_type (inst->type_argv [num], type);
519 case MONO_TYPE_SZARRAY: {
520 MonoClass *eclass = type->data.klass;
521 MonoType *nt, *inflated = inflate_generic_type (&eclass->byval_arg, context);
524 nt = dup_type (type, type);
525 nt->data.klass = mono_class_from_mono_type (inflated);
528 case MONO_TYPE_ARRAY: {
529 MonoClass *eclass = type->data.array->eklass;
530 MonoType *nt, *inflated = inflate_generic_type (&eclass->byval_arg, context);
533 nt = dup_type (type, type);
534 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
535 nt->data.array->eklass = mono_class_from_mono_type (inflated);
538 case MONO_TYPE_GENERICINST: {
539 MonoGenericClass *gclass = type->data.generic_class;
541 if (!gclass->inst->is_open)
543 gclass = inflate_generic_class (gclass, context);
544 if (gclass == type->data.generic_class)
546 nt = dup_type (type, type);
547 nt->data.generic_class = gclass;
550 case MONO_TYPE_CLASS:
551 case MONO_TYPE_VALUETYPE: {
552 MonoClass *klass = type->data.klass;
553 MonoGenericClass *gclass;
556 if (!klass->generic_container)
558 gclass = inflate_generic_class (klass->generic_container->context.gclass, context);
559 if (gclass == klass->generic_container->context.gclass)
561 nt = dup_type (type, type);
562 nt->type = MONO_TYPE_GENERICINST;
563 nt->data.generic_class = gclass;
572 MonoInflatedGenericClass*
573 mono_get_inflated_generic_class (MonoGenericClass *gclass)
575 g_assert (gclass->is_inflated);
576 mono_class_create_generic ((MonoInflatedGenericClass *) gclass);
577 return (MonoInflatedGenericClass *) gclass;
581 * mono_class_inflate_generic_type:
583 * @context: a generics context
585 * Instantiate the generic type @type, using the generics context @context.
587 * Returns: the instantiated type
590 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
592 MonoType *inflated = inflate_generic_type (type, context);
595 return dup_type (type, type);
597 mono_stats.inflated_type_count++;
601 static MonoGenericContext *
602 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
604 MonoGenericClass *gclass = NULL;
605 MonoGenericMethod *gmethod = NULL;
606 MonoGenericContext *res;
609 gclass = inflate_generic_class (context->gclass, inflate_with);
611 if (context->gmethod) {
612 MonoGenericInst *ninst = mono_metadata_inflate_generic_inst (context->gmethod->inst, inflate_with);
613 if (gclass == context->gclass && ninst == context->gmethod->inst) {
614 gmethod = context->gmethod;
616 gmethod = g_new0 (MonoGenericMethod, 1);
617 gmethod->generic_class = gclass;
618 gmethod->container = context->container;
619 gmethod->inst = ninst;
623 if (gclass == context->gclass && gmethod == context->gmethod)
626 res = g_new0 (MonoGenericContext, 1);
628 res->container = gmethod ? gmethod->container : context->container;
629 res->gclass = gclass;
630 res->gmethod = gmethod;
636 * mono_class_inflate_generic_method:
637 * @method: a generic method
638 * @context: a generics context
640 * Instantiate the generic method @method using the generics context @context.
642 * Returns: the new instantiated method
645 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
647 return mono_class_inflate_generic_method_full (method, NULL, context);
651 * mono_class_inflate_generic_method:
653 * Instantiate method @method with the generic context @context.
654 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
655 * Use mono_get_inflated_method (), mono_method_signature () and mono_method_get_header () to get the correct values.
658 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
661 MonoMethodInflated *iresult;
662 MonoMethodSignature *sig;
664 /* The `method' has already been instantiated before -> we need to create a new context. */
665 while (method->is_inflated) {
666 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
667 context = inflate_generic_context (imethod->context, context);
668 if (context == imethod->context)
670 method = imethod->declaring;
673 if (!method->generic_container && !method->klass->generic_container)
676 mono_stats.inflated_method_count++;
677 iresult = g_new0 (MonoMethodInflated, 1);
679 sig = mono_method_signature (method);
681 iresult->method.pinvoke = *(MonoMethodPInvoke*)method;
683 iresult->method.normal = *(MonoMethodNormal*)method;
684 iresult->method.normal.header = NULL;
687 result = (MonoMethod *) iresult;
688 result->is_inflated = 1;
689 result->signature = NULL;
690 iresult->context = context;
691 iresult->declaring = method;
693 if (!klass_hint || !klass_hint->generic_class ||
694 klass_hint->generic_class->container_class != method->klass ||
695 klass_hint->generic_class->inst != context->gclass->inst)
698 if (method->klass->generic_container)
699 result->klass = klass_hint;
701 if (!result->klass) {
702 MonoType *inflated = inflate_generic_type (&method->klass->byval_arg, context);
703 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
706 if (method->generic_container && !context->gmethod) {
707 MonoGenericMethod *gmethod = g_memdup (method->generic_container->context.gmethod, sizeof (*gmethod));
708 gmethod->generic_class = result->klass->generic_class;
710 context = g_new0 (MonoGenericContext, 1);
711 context->container = method->generic_container;
712 context->gclass = result->klass->generic_class;
713 context->gmethod = gmethod;
715 iresult->context = context;
722 * mono_get_inflated_method:
724 * For performance reasons, mono_class_inflate_generic_method() does not actually instantiate the
725 * method, it just "prepares" it for that. If you really need to fully instantiate the method
726 * (including its signature and header), call this method.
727 * FIXME: Martin? this description looks completely wrong.
730 mono_get_inflated_method (MonoMethod *method)
736 * mono_class_find_enum_basetype:
737 * @class: The enum class
739 * Determine the basetype of an enum by iterating through its fields. We do this
740 * in a separate function since it is cheaper than calling mono_class_setup_fields.
743 mono_class_find_enum_basetype (MonoClass *class)
745 MonoImage *m = class->image;
746 const int top = class->field.count;
749 g_assert (class->enumtype);
752 * Fetch all the field information.
754 for (i = 0; i < top; i++){
756 guint32 cols [MONO_FIELD_SIZE];
757 int idx = class->field.first + i;
758 MonoGenericContainer *container = NULL;
761 /* class->field.first and idx points into the fieldptr table */
762 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
763 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
764 mono_metadata_decode_value (sig, &sig);
765 /* FIELD signature == 0x06 */
766 g_assert (*sig == 0x06);
767 if (class->generic_container)
768 container = class->generic_container;
769 else if (class->generic_class) {
770 MonoClass *gklass = class->generic_class->container_class;
772 container = gklass->generic_container;
773 g_assert (container);
775 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
778 if (class->generic_class) {
779 ftype = mono_class_inflate_generic_type (ftype, class->generic_class->context);
780 ftype->attrs = cols [MONO_FIELD_FLAGS];
783 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
791 * mono_class_setup_fields:
792 * @class: The class to initialize
794 * Initializes the class->fields.
795 * LOCKING: Assumes the loader lock is held.
798 mono_class_setup_fields (MonoClass *class)
800 MonoImage *m = class->image;
801 int top = class->field.count;
802 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
803 int i, blittable = TRUE;
804 guint32 real_size = 0;
805 guint32 packing_size = 0;
806 gboolean explicit_size;
807 MonoClassField *field;
808 MonoGenericContainer *container = NULL;
809 MonoClass *gklass = NULL;
811 if (class->size_inited)
814 if (class->generic_class) {
815 MonoClass *gklass = class->generic_class->container_class;
816 mono_class_setup_fields (gklass);
817 top = gklass->field.count;
820 class->instance_size = 0;
822 class->sizes.class_size = 0;
825 /* For generic instances, class->parent might not have been initialized */
826 mono_class_init (class->parent);
827 if (!class->parent->size_inited)
828 mono_class_setup_fields (class->parent);
829 class->instance_size += class->parent->instance_size;
830 class->min_align = class->parent->min_align;
831 /* we use |= since it may have been set already */
832 class->has_references |= class->parent->has_references;
833 blittable = class->parent->blittable;
835 class->instance_size = sizeof (MonoObject);
836 class->min_align = 1;
839 /* Get the real size */
840 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
843 g_assert ((packing_size & 0xfffffff0) == 0);
844 class->packing_size = packing_size;
845 real_size += class->instance_size;
849 if (explicit_size && real_size) {
850 class->instance_size = MAX (real_size, class->instance_size);
852 class->size_inited = 1;
853 class->blittable = blittable;
857 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
860 /* Prevent infinite loops if the class references itself */
861 class->size_inited = 1;
863 class->fields = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoClassField) * top);
865 if (class->generic_container) {
866 container = class->generic_container;
867 } else if (class->generic_class) {
868 gklass = class->generic_class->container_class;
869 container = gklass->generic_container;
870 g_assert (container);
872 mono_class_setup_fields (gklass);
876 * Fetch all the field information.
878 for (i = 0; i < top; i++){
879 int idx = class->field.first + i;
880 field = &class->fields [i];
882 field->parent = class;
884 if (class->generic_class) {
885 MonoClassField *gfield = &gklass->fields [i];
886 MonoInflatedField *ifield = g_new0 (MonoInflatedField, 1);
888 ifield->generic_type = gfield->type;
889 field->name = gfield->name;
890 field->generic_info = ifield;
891 field->type = mono_class_inflate_generic_type (gfield->type, class->generic_class->context);
892 field->type->attrs = gfield->type->attrs;
893 if (mono_field_is_deleted (field))
895 field->offset = gfield->offset;
896 field->data = gfield->data;
900 guint32 cols [MONO_FIELD_SIZE];
902 /* class->field.first and idx points into the fieldptr table */
903 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
904 /* The name is needed for fieldrefs */
905 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
906 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
907 mono_metadata_decode_value (sig, &sig);
908 /* FIELD signature == 0x06 */
909 g_assert (*sig == 0x06);
910 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
912 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
915 if (mono_field_is_deleted (field))
917 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
919 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
920 field->offset = offset;
921 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
922 g_warning ("%s not initialized correctly (missing field layout info for %s)",
923 class->name, field->name);
926 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
927 mono_metadata_field_info (m, idx, NULL, &rva, NULL);
929 g_warning ("field %s in %s should have RVA data, but hasn't", field->name, class->name);
930 field->data = mono_image_rva_map (class->image, rva);
934 /* Only do these checks if we still think this type is blittable */
935 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
936 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
939 MonoClass *field_class = mono_class_from_mono_type (field->type);
940 if (!field_class || !field_class->blittable)
945 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
946 class->enum_basetype = field->type;
947 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
948 blittable = class->element_class->blittable;
951 /* The def_value of fields is compute lazily during vtable creation */
954 if (class == mono_defaults.string_class)
957 class->blittable = blittable;
959 if (class->enumtype && !class->enum_basetype) {
960 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
963 if (explicit_size && real_size) {
964 class->instance_size = MAX (real_size, class->instance_size);
967 if (class->exception_type)
969 mono_class_layout_fields (class);
973 * mono_class_setup_fields_locking:
974 * @class: The class to initialize
976 * Initializes the class->fields array of fields.
977 * Aquires the loader lock.
980 mono_class_setup_fields_locking (MonoClass *class)
983 mono_class_setup_fields (class);
984 mono_loader_unlock ();
988 * mono_class_has_references:
990 * Returns whenever @klass->has_references is set, initializing it if needed.
991 * Aquires the loader lock.
994 mono_class_has_references (MonoClass *klass)
996 if (klass->init_pending) {
997 /* Be conservative */
1000 mono_class_init (klass);
1002 return klass->has_references;
1006 /* useful until we keep track of gc-references in corlib etc. */
1008 #define IS_GC_REFERENCE(t) FALSE
1010 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U || (t)->type == MONO_TYPE_I || (t)->type == MONO_TYPE_PTR)
1014 * mono_class_layout_fields:
1017 * Compute the placement of fields inside an object or struct, according to
1018 * the layout rules and set the following fields in @class:
1019 * - has_references (if the class contains instance references firled or structs that contain references)
1020 * - has_static_refs (same, but for static fields)
1021 * - instance_size (size of the object in memory)
1022 * - class_size (size needed for the static fields)
1023 * - size_inited (flag set when the instance_size is set)
1025 * LOCKING: this is supposed to be called with the loader lock held.
1028 mono_class_layout_fields (MonoClass *class)
1031 const int top = class->field.count;
1032 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1033 guint32 pass, passes, real_size;
1034 gboolean gc_aware_layout = FALSE;
1035 MonoClassField *field;
1037 if (class->generic_container ||
1038 (class->generic_class && class->generic_class->inst->is_open))
1042 * Enable GC aware auto layout: in this mode, reference
1043 * fields are grouped together inside objects, increasing collector
1045 * Requires that all classes whose layout is known to native code be annotated
1046 * with [StructLayout (LayoutKind.Sequential)]
1047 * Value types have gc_aware_layout disabled by default, as per
1048 * what the default is for other runtimes.
1050 /* corlib is missing [StructLayout] directives in many places */
1051 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1052 if (class->image != mono_defaults.corlib &&
1053 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1054 gc_aware_layout = TRUE;
1057 /* Compute klass->has_references */
1059 * Process non-static fields first, since static fields might recursively
1060 * refer to the class itself.
1062 for (i = 0; i < top; i++) {
1065 field = &class->fields [i];
1067 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1068 ftype = mono_type_get_underlying_type (field->type);
1069 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1070 class->has_references = TRUE;
1074 for (i = 0; i < top; i++) {
1077 field = &class->fields [i];
1079 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1080 ftype = mono_type_get_underlying_type (field->type);
1081 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1082 class->has_static_refs = TRUE;
1086 for (i = 0; i < top; i++) {
1089 field = &class->fields [i];
1091 ftype = mono_type_get_underlying_type (field->type);
1092 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1093 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1094 class->has_static_refs = TRUE;
1096 class->has_references = TRUE;
1101 * Compute field layout and total size (not considering static fields)
1105 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1106 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1108 if (gc_aware_layout)
1113 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1117 real_size = class->parent->instance_size;
1119 real_size = sizeof (MonoObject);
1121 for (pass = 0; pass < passes; ++pass) {
1122 for (i = 0; i < top; i++){
1123 guint32 size, align;
1125 field = &class->fields [i];
1127 if (mono_field_is_deleted (field))
1129 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1132 if (gc_aware_layout) {
1134 * We process fields with reference type in the first pass,
1135 * and fields with non-reference type in the second pass.
1136 * We use IS_POINTER instead of IS_REFERENCE because in
1137 * some internal structures, we store GC_MALLOCed memory
1138 * in IntPtr fields...
1140 if (MONO_TYPE_IS_POINTER (field->type)) {
1149 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1150 (strcmp (field->name, "$PRIVATE$") == 0)) {
1151 /* This field is a hack inserted by MCS to empty structures */
1155 size = mono_type_size (field->type, &align);
1157 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1158 align = class->packing_size ? MIN (class->packing_size, align): align;
1159 class->min_align = MAX (align, class->min_align);
1160 field->offset = real_size;
1161 field->offset += align - 1;
1162 field->offset &= ~(align - 1);
1163 real_size = field->offset + size;
1166 class->instance_size = MAX (real_size, class->instance_size);
1168 if (class->instance_size & (class->min_align - 1)) {
1169 class->instance_size += class->min_align - 1;
1170 class->instance_size &= ~(class->min_align - 1);
1174 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1176 for (i = 0; i < top; i++) {
1177 guint32 size, align;
1179 field = &class->fields [i];
1182 * There must be info about all the fields in a type if it
1183 * uses explicit layout.
1186 if (mono_field_is_deleted (field))
1188 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1191 size = mono_type_size (field->type, &align);
1194 * When we get here, field->offset is already set by the
1195 * loader (for either runtime fields or fields loaded from metadata).
1196 * The offset is from the start of the object: this works for both
1197 * classes and valuetypes.
1199 field->offset += sizeof (MonoObject);
1204 real_size = MAX (real_size, size + field->offset);
1206 class->instance_size = MAX (real_size, class->instance_size);
1210 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1212 * For small structs, set min_align to at least the struct size, since the
1213 * JIT memset/memcpy code assumes this and generates unaligned accesses
1214 * otherwise. See #78990 for a testcase.
1216 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1217 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1220 class->size_inited = 1;
1223 * Compute static field layout and size
1225 for (i = 0; i < top; i++){
1226 guint32 size, align;
1228 field = &class->fields [i];
1230 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1232 if (mono_field_is_deleted (field))
1235 size = mono_type_size (field->type, &align);
1236 field->offset = class->sizes.class_size;
1237 field->offset += align - 1;
1238 field->offset &= ~(align - 1);
1239 class->sizes.class_size = field->offset + size;
1244 * mono_class_setup_methods:
1247 * Initializes the 'methods' array in the klass.
1248 * Calling this method should be avoided if possible since it allocates a lot
1249 * of long-living MonoMethod structures.
1250 * Methods belonging to an interface are assigned a sequential slot starting
1254 mono_class_setup_methods (MonoClass *class)
1257 MonoMethod **methods;
1262 mono_loader_lock ();
1264 if (class->methods) {
1265 mono_loader_unlock ();
1269 //printf ("INIT: %s.%s\n", class->name_space, class->name);
1271 if (!class->methods) {
1272 methods = mono_mempool_alloc (class->image->mempool, sizeof (MonoMethod*) * class->method.count);
1273 for (i = 0; i < class->method.count; ++i) {
1274 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1275 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1279 if (MONO_CLASS_IS_INTERFACE (class))
1280 for (i = 0; i < class->method.count; ++i)
1281 methods [i]->slot = i;
1283 /* Leave this assignment as the last op in this function */
1284 class->methods = methods;
1286 mono_loader_unlock ();
1291 mono_class_setup_properties (MonoClass *class)
1293 guint startm, endm, i, j;
1294 guint32 cols [MONO_PROPERTY_SIZE];
1295 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1296 MonoProperty *properties;
1299 if (class->properties)
1302 mono_loader_lock ();
1304 if (class->properties) {
1305 mono_loader_unlock ();
1309 class->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1310 class->property.count = last - class->property.first;
1312 if (class->property.count)
1313 mono_class_setup_methods (class);
1315 properties = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoProperty) * class->property.count);
1316 for (i = class->property.first; i < last; ++i) {
1317 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1318 properties [i - class->property.first].parent = class;
1319 properties [i - class->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1320 properties [i - class->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1322 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1323 for (j = startm; j < endm; ++j) {
1326 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1328 if (class->image->uncompressed_metadata)
1329 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1330 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1332 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1334 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1335 case METHOD_SEMANTIC_SETTER:
1336 properties [i - class->property.first].set = method;
1338 case METHOD_SEMANTIC_GETTER:
1339 properties [i - class->property.first].get = method;
1347 /* Leave this assignment as the last op in the function */
1348 class->properties = properties;
1350 mono_loader_unlock ();
1354 * LOCKING: assumes the loader lock is held.
1357 inflate_event (MonoClass *class, MonoEvent *event, MonoInflatedGenericClass *gclass)
1359 event->parent = class;
1362 MonoMethod *inflated = mono_class_inflate_generic_method_full (
1363 event->add, class, gclass->generic_class.context);
1365 event->add = mono_get_inflated_method (inflated);
1368 if (event->remove) {
1369 MonoMethod *inflated = mono_class_inflate_generic_method_full (
1370 event->remove, class, gclass->generic_class.context);
1372 event->remove = mono_get_inflated_method (inflated);
1376 MonoMethod *inflated = mono_class_inflate_generic_method_full (
1377 event->raise, class, gclass->generic_class.context);
1379 event->raise = mono_get_inflated_method (inflated);
1383 MonoMethod **om = event->other;
1390 event->other = g_new0 (MonoMethod*, count + 1);
1393 MonoMethod *inflated = mono_class_inflate_generic_method_full (
1394 *om, class, gclass->generic_class.context);
1396 event->other [count++] = mono_get_inflated_method (inflated);
1403 mono_class_setup_events (MonoClass *class)
1405 guint startm, endm, i, j;
1406 guint32 cols [MONO_EVENT_SIZE];
1407 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1414 mono_loader_lock ();
1416 if (class->events) {
1417 mono_loader_unlock ();
1421 if (class->generic_class) {
1422 MonoInflatedGenericClass *gclass;
1425 gclass = mono_get_inflated_generic_class (class->generic_class);
1426 gklass = gclass->generic_class.container_class;
1428 mono_class_setup_events (gklass);
1429 class->event = gklass->event;
1431 class->events = g_new0 (MonoEvent, class->event.count);
1433 for (i = 0; i < class->event.count; i++) {
1434 class->events [i] = gklass->events [i];
1435 inflate_event (class, &class->events [i], gclass);
1438 mono_loader_unlock ();
1442 class->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1443 class->event.count = last - class->event.first;
1445 if (class->event.count)
1446 mono_class_setup_methods (class);
1448 events = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoEvent) * class->event.count);
1449 for (i = class->event.first; i < last; ++i) {
1450 MonoEvent *event = &events [i - class->event.first];
1452 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1453 event->parent = class;
1454 event->attrs = cols [MONO_EVENT_FLAGS];
1455 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1457 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1458 for (j = startm; j < endm; ++j) {
1461 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1463 if (class->image->uncompressed_metadata)
1464 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1465 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1467 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1469 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1470 case METHOD_SEMANTIC_ADD_ON:
1471 event->add = method;
1473 case METHOD_SEMANTIC_REMOVE_ON:
1474 event->remove = method;
1476 case METHOD_SEMANTIC_FIRE:
1477 event->raise = method;
1479 case METHOD_SEMANTIC_OTHER: {
1482 if (event->other == NULL) {
1483 event->other = g_new0 (MonoMethod*, 2);
1485 while (event->other [n])
1487 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1489 event->other [n] = method;
1490 /* NULL terminated */
1491 event->other [n + 1] = NULL;
1499 /* Leave this assignment as the last op in the function */
1500 class->events = events;
1502 mono_loader_unlock ();
1506 * Global pool of interface IDs, represented as a bitset.
1507 * LOCKING: this is supposed to be accessed with the loader lock held.
1509 static MonoBitSet *global_interface_bitset = NULL;
1512 * mono_unload_interface_ids:
1513 * @bitset: bit set of interface IDs
1515 * When an image is unloaded, the interface IDs associated with
1516 * the image are put back in the global pool of IDs so the numbers
1520 mono_unload_interface_ids (MonoBitSet *bitset)
1522 mono_loader_lock ();
1523 mono_bitset_sub (global_interface_bitset, bitset);
1524 mono_loader_unlock ();
1528 * mono_get_unique_iid:
1531 * Assign a unique integer ID to the interface represented by @class.
1532 * The ID will positive and as small as possible.
1533 * LOCKING: this is supposed to be called with the loader lock held.
1534 * Returns: the new ID.
1537 mono_get_unique_iid (MonoClass *class)
1541 g_assert (MONO_CLASS_IS_INTERFACE (class));
1543 if (!global_interface_bitset) {
1544 global_interface_bitset = mono_bitset_new (128, 0);
1547 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
1549 int old_size = mono_bitset_size (global_interface_bitset);
1550 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
1551 mono_bitset_free (global_interface_bitset);
1552 global_interface_bitset = new_set;
1555 mono_bitset_set (global_interface_bitset, iid);
1556 /* set the bit also in the per-image set */
1557 if (class->image->interface_bitset) {
1558 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
1559 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
1560 mono_bitset_free (class->image->interface_bitset);
1561 class->image->interface_bitset = new_set;
1564 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
1566 mono_bitset_set (class->image->interface_bitset, iid);
1568 if (mono_print_vtable) {
1570 char *type_name = mono_type_full_name (&class->byval_arg);
1571 if (class->generic_class && !class->generic_class->inst->is_open) {
1572 generic_id = class->generic_class->inst->id;
1573 g_assert (generic_id != 0);
1577 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
1581 g_assert (iid <= 65535);
1586 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
1591 for (i = 0; i < klass->interface_count; i++) {
1592 ic = klass->interfaces [i];
1595 *res = g_ptr_array_new ();
1596 g_ptr_array_add (*res, ic);
1597 mono_class_init (ic);
1599 collect_implemented_interfaces_aux (ic, res);
1604 mono_class_get_implemented_interfaces (MonoClass *klass)
1606 GPtrArray *res = NULL;
1608 collect_implemented_interfaces_aux (klass, &res);
1612 typedef struct _IOffsetInfo IOffsetInfo;
1613 struct _IOffsetInfo {
1617 int data [MONO_ZERO_LEN_ARRAY];
1620 static IOffsetInfo *cached_offset_info = NULL;
1621 static int next_offset_info_size = 128;
1624 cache_interface_offsets (int max_iid, int *data)
1626 IOffsetInfo *cached_info;
1629 for (cached_info = cached_offset_info; cached_info; cached_info = cached_info->next) {
1630 cached = cached_info->data;
1631 while (cached < cached_info->data + cached_info->size && *cached) {
1632 if (*cached == max_iid) {
1633 int i, matched = TRUE;
1635 for (i = 0; i < max_iid; ++i) {
1636 if (cached [i] != data [i]) {
1645 cached += *cached + 1;
1649 /* find a free slot */
1650 for (cached_info = cached_offset_info; cached_info; cached_info = cached_info->next) {
1651 if (cached_info->size - cached_info->next_free >= max_iid + 1) {
1652 cached = &cached_info->data [cached_info->next_free];
1653 *cached++ = max_iid;
1654 memcpy (cached, data, max_iid * sizeof (int));
1655 cached_info->next_free += max_iid + 1;
1659 /* allocate a new chunk */
1660 if (max_iid + 1 < next_offset_info_size) {
1661 new_size = next_offset_info_size;
1662 if (next_offset_info_size < 4096)
1663 next_offset_info_size += next_offset_info_size >> 2;
1665 new_size = max_iid + 1;
1667 cached_info = g_malloc0 (sizeof (IOffsetInfo) + sizeof (int) * new_size);
1668 cached_info->size = new_size;
1669 /*g_print ("allocated %d offset entries at %p (total: %d)\n", new_size, cached_info->data, offset_info_total_size);*/
1670 cached = &cached_info->data [0];
1671 *cached++ = max_iid;
1672 memcpy (cached, data, max_iid * sizeof (int));
1673 cached_info->next_free += max_iid + 1;
1674 cached_info->next = cached_offset_info;
1675 cached_offset_info = cached_info;
1680 * LOCKING: this is supposed to be called with the loader lock held.
1683 setup_interface_offsets (MonoClass *class, int cur_slot)
1690 /* compute maximum number of slots and maximum interface id */
1692 for (k = class; k ; k = k->parent) {
1693 for (i = 0; i < k->interface_count; i++) {
1694 ic = k->interfaces [i];
1697 mono_class_init (ic);
1699 if (max_iid < ic->interface_id)
1700 max_iid = ic->interface_id;
1702 ifaces = mono_class_get_implemented_interfaces (k);
1704 for (i = 0; i < ifaces->len; ++i) {
1705 ic = g_ptr_array_index (ifaces, i);
1706 if (max_iid < ic->interface_id)
1707 max_iid = ic->interface_id;
1709 g_ptr_array_free (ifaces, TRUE);
1713 if (MONO_CLASS_IS_INTERFACE (class)) {
1714 if (max_iid < class->interface_id)
1715 max_iid = class->interface_id;
1717 class->max_interface_id = max_iid;
1718 /* compute vtable offset for interfaces */
1719 class->interface_offsets = g_malloc (sizeof (int) * (max_iid + 1));
1721 for (i = 0; i <= max_iid; i++)
1722 class->interface_offsets [i] = -1;
1724 ifaces = mono_class_get_implemented_interfaces (class);
1726 for (i = 0; i < ifaces->len; ++i) {
1727 ic = g_ptr_array_index (ifaces, i);
1728 class->interface_offsets [ic->interface_id] = cur_slot;
1729 cur_slot += ic->method.count;
1731 g_ptr_array_free (ifaces, TRUE);
1734 for (k = class->parent; k ; k = k->parent) {
1735 ifaces = mono_class_get_implemented_interfaces (k);
1737 for (i = 0; i < ifaces->len; ++i) {
1738 ic = g_ptr_array_index (ifaces, i);
1740 if (class->interface_offsets [ic->interface_id] == -1) {
1741 int io = k->interface_offsets [ic->interface_id];
1745 class->interface_offsets [ic->interface_id] = io;
1748 g_ptr_array_free (ifaces, TRUE);
1752 if (MONO_CLASS_IS_INTERFACE (class))
1753 class->interface_offsets [class->interface_id] = cur_slot;
1755 cached_data = cache_interface_offsets (max_iid + 1, class->interface_offsets);
1756 g_free (class->interface_offsets);
1757 class->interface_offsets = cached_data;
1763 * Setup interface offsets for interfaces. Used by Ref.Emit.
1766 mono_class_setup_interface_offsets (MonoClass *class)
1768 mono_loader_lock ();
1770 setup_interface_offsets (class, 0);
1772 mono_loader_unlock ();
1776 mono_class_setup_vtable (MonoClass *class)
1778 MonoMethod **overrides;
1779 MonoGenericContext *context;
1787 mono_class_setup_methods (class);
1789 if (MONO_CLASS_IS_INTERFACE (class))
1792 mono_loader_lock ();
1794 if (class->vtable) {
1795 mono_loader_unlock ();
1799 mono_stats.generic_vtable_count ++;
1801 if (class->generic_class) {
1802 context = class->generic_class->context;
1803 type_token = class->generic_class->container_class->type_token;
1805 context = (MonoGenericContext *) class->generic_container;
1806 type_token = class->type_token;
1809 if (class->image->dynamic)
1810 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
1812 /* The following call fails if there are missing methods in the type */
1813 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
1817 mono_class_setup_vtable_general (class, overrides, onum);
1821 mono_loader_unlock ();
1827 * LOCKING: this is supposed to be called with the loader lock held.
1830 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
1833 MonoMethod **vtable;
1834 int i, max_vtsize = 0, max_iid, cur_slot = 0;
1835 GPtrArray *ifaces, *pifaces = NULL;
1836 GHashTable *override_map = NULL;
1837 gboolean security_enabled = mono_is_security_manager_active ();
1842 ifaces = mono_class_get_implemented_interfaces (class);
1844 for (i = 0; i < ifaces->len; i++) {
1845 MonoClass *ic = g_ptr_array_index (ifaces, i);
1846 max_vtsize += ic->method.count;
1848 g_ptr_array_free (ifaces, TRUE);
1851 if (class->parent) {
1852 mono_class_init (class->parent);
1853 mono_class_setup_vtable (class->parent);
1854 max_vtsize += class->parent->vtable_size;
1855 cur_slot = class->parent->vtable_size;
1858 max_vtsize += class->method.count;
1860 vtable = alloca (sizeof (gpointer) * max_vtsize);
1861 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
1863 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
1865 cur_slot = setup_interface_offsets (class, cur_slot);
1866 max_iid = class->max_interface_id;
1868 if (class->parent && class->parent->vtable_size)
1869 memcpy (vtable, class->parent->vtable, sizeof (gpointer) * class->parent->vtable_size);
1871 /* override interface methods */
1872 for (i = 0; i < onum; i++) {
1873 MonoMethod *decl = overrides [i*2];
1874 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
1876 mono_class_setup_methods (decl->klass);
1877 g_assert (decl->slot != -1);
1878 dslot = decl->slot + class->interface_offsets [decl->klass->interface_id];
1879 vtable [dslot] = overrides [i*2 + 1];
1880 vtable [dslot]->slot = dslot;
1882 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
1884 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
1888 for (k = class; k ; k = k->parent) {
1891 ifaces = mono_class_get_implemented_interfaces (k);
1893 nifaces = ifaces->len;
1894 if (k->generic_class) {
1895 pifaces = mono_class_get_implemented_interfaces (
1896 k->generic_class->container_class);
1897 g_assert (pifaces && (pifaces->len == nifaces));
1900 for (i = 0; i < nifaces; i++) {
1901 MonoClass *pic = NULL;
1904 ic = g_ptr_array_index (ifaces, i);
1906 pic = g_ptr_array_index (pifaces, i);
1907 g_assert (ic->interface_id <= k->max_interface_id);
1908 io = k->interface_offsets [ic->interface_id];
1911 g_assert (io <= max_vtsize);
1914 mono_class_setup_methods (ic);
1915 for (l = 0; l < ic->method.count; l++) {
1916 MonoMethod *im = ic->methods [l];
1918 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
1921 for (j = 0; j < class->method.count; ++j) {
1922 MonoMethod *cm = class->methods [j];
1923 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
1924 !((cm->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == METHOD_ATTRIBUTE_PUBLIC) ||
1925 !(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT))
1927 if (!strcmp(cm->name, im->name) &&
1928 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
1930 /* CAS - SecurityAction.InheritanceDemand on interface */
1931 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
1932 mono_secman_inheritancedemand_method (cm, im);
1935 g_assert (io + l <= max_vtsize);
1936 vtable [io + l] = cm;
1941 /* already implemented */
1942 if (io >= k->vtable_size)
1946 for (l = 0; l < ic->method.count; l++) {
1947 MonoMethod *im = ic->methods [l];
1950 g_assert (io + l <= max_vtsize);
1952 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
1955 for (k1 = class; k1; k1 = k1->parent) {
1956 for (j = 0; j < k1->method.count; ++j) {
1957 MonoMethod *cm = k1->methods [j];
1959 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
1960 !(cm->flags & METHOD_ATTRIBUTE_PUBLIC))
1963 if (!strcmp(cm->name, im->name) &&
1964 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
1966 /* CAS - SecurityAction.InheritanceDemand on interface */
1967 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
1968 mono_secman_inheritancedemand_method (cm, im);
1971 g_assert (io + l <= max_vtsize);
1972 vtable [io + l] = cm;
1977 g_assert (io + l <= max_vtsize);
1978 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
1983 for (l = 0; l < ic->method.count; l++) {
1984 MonoMethod *im = ic->methods [l];
1985 char *qname, *fqname, *cname, *the_cname;
1988 if (vtable [io + l])
1992 the_cname = mono_type_get_name_full (&pic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
1996 cname = (char*)ic->name;
1999 qname = g_strconcat (cname, ".", im->name, NULL);
2000 if (ic->name_space && ic->name_space [0])
2001 fqname = g_strconcat (ic->name_space, ".", cname, ".", im->name, NULL);
2005 for (k1 = class; k1; k1 = k1->parent) {
2006 for (j = 0; j < k1->method.count; ++j) {
2007 MonoMethod *cm = k1->methods [j];
2009 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2012 if (((fqname && !strcmp (cm->name, fqname)) || !strcmp (cm->name, qname)) &&
2013 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2015 /* CAS - SecurityAction.InheritanceDemand on interface */
2016 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2017 mono_secman_inheritancedemand_method (cm, im);
2020 g_assert (io + l <= max_vtsize);
2021 vtable [io + l] = cm;
2032 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
2033 for (l = 0; l < ic->method.count; l++) {
2035 MonoMethod *im = ic->methods [l];
2036 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2038 g_assert (io + l <= max_vtsize);
2041 * If one of our parents already implements this interface
2042 * we can inherit the implementation.
2044 if (!(vtable [io + l])) {
2045 MonoClass *parent = class->parent;
2047 for (; parent; parent = parent->parent) {
2048 if ((ic->interface_id <= parent->max_interface_id) &&
2049 (parent->interface_offsets [ic->interface_id] != -1) &&
2051 vtable [io + l] = parent->vtable [parent->interface_offsets [ic->interface_id] + l];
2056 if (!(vtable [io + l])) {
2057 for (j = 0; j < onum; ++j) {
2058 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", io+l, overrides [j*2+1]->name,
2059 overrides [j*2+1]->slot, overrides [j*2]->name, overrides [j*2]->slot);
2061 msig = mono_signature_get_desc (mono_method_signature (im), FALSE);
2062 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2063 mono_type_get_name (&ic->byval_arg), im->name, msig, class->name_space, class->name);
2065 for (j = 0; j < class->method.count; ++j) {
2066 MonoMethod *cm = class->methods [j];
2067 msig = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2069 printf ("METHOD %s(%s)\n", cm->name, msig);
2072 g_assert_not_reached ();
2077 for (l = 0; l < ic->method.count; l++) {
2078 MonoMethod *im = vtable [io + l];
2081 g_assert (io + l <= max_vtsize);
2083 /* FIXME: why do we need this ? */
2085 /* g_assert_not_reached (); */
2091 g_ptr_array_free (ifaces, TRUE);
2094 for (i = 0; i < class->method.count; ++i) {
2097 cm = class->methods [i];
2100 * Non-virtual method have no place in the vtable.
2101 * This also catches static methods (since they are not virtual).
2103 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2107 * If the method is REUSE_SLOT, we must check in the
2108 * base class for a method to override.
2110 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2112 for (k = class->parent; k ; k = k->parent) {
2114 for (j = 0; j < k->method.count; ++j) {
2115 MonoMethod *m1 = k->methods [j];
2116 MonoMethodSignature *cmsig, *m1sig;
2118 if (!(m1->flags & METHOD_ATTRIBUTE_VIRTUAL))
2121 cmsig = mono_method_signature (cm);
2122 m1sig = mono_method_signature (m1);
2124 if (!cmsig || !m1sig) {
2125 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2129 if (!strcmp(cm->name, m1->name) &&
2130 mono_metadata_signature_equal (cmsig, m1sig)) {
2132 /* CAS - SecurityAction.InheritanceDemand */
2133 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2134 mono_secman_inheritancedemand_method (cm, m1);
2137 slot = k->methods [j]->slot;
2138 g_assert (cm->slot < max_vtsize);
2140 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
2141 g_hash_table_insert (override_map, m1, cm);
2153 cm->slot = cur_slot++;
2155 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
2156 vtable [cm->slot] = cm;
2159 /* override non interface methods */
2160 for (i = 0; i < onum; i++) {
2161 MonoMethod *decl = overrides [i*2];
2162 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
2163 g_assert (decl->slot != -1);
2164 vtable [decl->slot] = overrides [i*2 + 1];
2165 overrides [i * 2 + 1]->slot = decl->slot;
2167 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
2168 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
2173 * If a method occupies more than one place in the vtable, and it is
2174 * overriden, then change the other occurances too.
2177 for (i = 0; i < max_vtsize; ++i)
2179 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
2184 g_hash_table_destroy (override_map);
2187 if (class->generic_class) {
2188 MonoClass *gklass = class->generic_class->container_class;
2190 mono_class_init (gklass);
2192 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
2194 class->vtable_size = cur_slot;
2196 /* Try to share the vtable with our parent. */
2197 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
2198 class->vtable = class->parent->vtable;
2200 class->vtable = mono_mempool_alloc0 (class->image->mempool, sizeof (gpointer) * class->vtable_size);
2201 memcpy (class->vtable, vtable, sizeof (gpointer) * class->vtable_size);
2204 if (mono_print_vtable) {
2207 for (i = 0; i <= max_iid; i++)
2208 if (class->interface_offsets [i] != -1)
2211 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
2212 class->vtable_size, icount);
2214 for (i = 0; i < class->vtable_size; ++i) {
2219 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
2220 mono_method_full_name (cm, TRUE));
2226 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
2227 class->name, max_iid);
2229 for (i = 0; i < class->interface_count; i++) {
2230 ic = class->interfaces [i];
2231 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
2232 class->interface_offsets [ic->interface_id],
2233 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
2236 for (k = class->parent; k ; k = k->parent) {
2237 for (i = 0; i < k->interface_count; i++) {
2238 ic = k->interfaces [i];
2239 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
2240 class->interface_offsets [ic->interface_id],
2241 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
2248 static MonoMethod *default_ghc = NULL;
2249 static MonoMethod *default_finalize = NULL;
2250 static int finalize_slot = -1;
2251 static int ghc_slot = -1;
2254 initialize_object_slots (MonoClass *class)
2259 if (class == mono_defaults.object_class) {
2260 mono_class_setup_vtable (class);
2261 for (i = 0; i < class->vtable_size; ++i) {
2262 MonoMethod *cm = class->vtable [i];
2264 if (!strcmp (cm->name, "GetHashCode"))
2266 else if (!strcmp (cm->name, "Finalize"))
2270 g_assert (ghc_slot > 0);
2271 default_ghc = class->vtable [ghc_slot];
2273 g_assert (finalize_slot > 0);
2274 default_finalize = class->vtable [finalize_slot];
2279 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
2281 GList* n = mono_mempool_alloc (mp, sizeof (GList));
2289 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, int pos)
2291 MonoGenericContext *context;
2294 context = g_new0 (MonoGenericContext, 1);
2295 context->container = iface->generic_class->context->container;
2296 context->gmethod = g_new0 (MonoGenericMethod, 1);
2297 context->gmethod->generic_class = iface->generic_class;
2298 context->gmethod->inst = iface->generic_class->inst;
2300 for (i = 0; i < class->parent->method.count; i++) {
2301 MonoMethod *m = class->parent->methods [i];
2302 MonoMethod *inflated;
2303 const char *mname, *iname;
2306 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
2307 iname = "System.Collections.Generic.ICollection`1.";
2308 mname = m->name + 27;
2309 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
2310 iname = "System.Collections.Generic.IEnumerable`1.";
2311 mname = m->name + 27;
2312 } else if (!strncmp (m->name, "InternalArray__", 15)) {
2313 iname = "System.Collections.Generic.IList`1.";
2314 mname = m->name + 15;
2319 name = mono_mempool_alloc (class->image->mempool, strlen (iname) + strlen (mname) + 1);
2320 strcpy (name, iname);
2321 strcpy (name + strlen (iname), mname);
2323 inflated = mono_class_inflate_generic_method (m, context);
2324 class->methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, name, inflated);
2330 * @class: the class to initialize
2332 * compute the instance_size, class_size and other infos that cannot be
2333 * computed at mono_class_get() time. Also compute a generic vtable and
2334 * the method slot numbers. We use this infos later to create a domain
2337 * Returns TRUE on success or FALSE if there was a problem in loading
2338 * the type (incorrect assemblies, missing assemblies, methods, etc).
2341 mono_class_init (MonoClass *class)
2344 MonoCachedClassInfo cached_info;
2345 gboolean has_cached_info;
2346 int class_init_ok = TRUE;
2353 /*g_print ("Init class %s\n", class->name);*/
2355 /* We do everything inside the lock to prevent races */
2356 mono_loader_lock ();
2358 if (class->inited) {
2359 mono_loader_unlock ();
2360 /* Somebody might have gotten in before us */
2364 if (class->init_pending) {
2365 mono_loader_unlock ();
2366 /* this indicates a cyclic dependency */
2367 g_error ("pending init %s.%s\n", class->name_space, class->name);
2370 class->init_pending = 1;
2372 /* CAS - SecurityAction.InheritanceDemand */
2373 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
2374 mono_secman_inheritancedemand_class (class, class->parent);
2377 if (mono_debugger_start_class_init_func)
2378 mono_debugger_start_class_init_func (class);
2380 mono_stats.initialized_class_count++;
2382 if (class->generic_class && !class->generic_class->is_dynamic) {
2383 MonoInflatedGenericClass *gclass;
2386 gclass = mono_get_inflated_generic_class (class->generic_class);
2387 gklass = gclass->generic_class.container_class;
2389 mono_stats.generic_class_count++;
2391 class->method = gklass->method;
2392 class->field = gklass->field;
2394 mono_class_init (gklass);
2395 mono_class_setup_methods (gklass);
2396 mono_class_setup_properties (gklass);
2398 if (MONO_CLASS_IS_INTERFACE (class))
2399 class->interface_id = mono_get_unique_iid (class);
2401 g_assert (class->method.count == gklass->method.count);
2402 class->methods = g_new0 (MonoMethod *, class->method.count);
2404 for (i = 0; i < class->method.count; i++) {
2405 MonoMethod *inflated = mono_class_inflate_generic_method_full (
2406 gklass->methods [i], class, gclass->generic_class.context);
2408 class->methods [i] = mono_get_inflated_method (inflated);
2411 class->property = gklass->property;
2412 class->properties = g_new0 (MonoProperty, class->property.count);
2414 for (i = 0; i < class->property.count; i++) {
2415 MonoProperty *prop = &class->properties [i];
2417 *prop = gklass->properties [i];
2420 prop->get = mono_class_inflate_generic_method_full (
2421 prop->get, class, gclass->generic_class.context);
2423 prop->set = mono_class_inflate_generic_method_full (
2424 prop->set, class, gclass->generic_class.context);
2426 prop->parent = class;
2429 g_assert (class->interface_count == gklass->interface_count);
2432 if (class->parent && !class->parent->inited)
2433 mono_class_init (class->parent);
2435 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
2437 if (!class->generic_class && (!has_cached_info || (has_cached_info && cached_info.has_nested_classes))) {
2438 i = mono_metadata_nesting_typedef (class->image, class->type_token, 1);
2441 guint32 cols [MONO_NESTED_CLASS_SIZE];
2442 mono_metadata_decode_row (&class->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
2443 nclass = mono_class_create_from_typedef (class->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
2444 class->nested_classes = g_list_prepend_mempool (class->nested_classes, class->image->mempool, nclass);
2446 i = mono_metadata_nesting_typedef (class->image, class->type_token, i + 1);
2451 * Computes the size used by the fields, and their locations
2453 if (has_cached_info) {
2454 class->instance_size = cached_info.instance_size;
2455 class->sizes.class_size = cached_info.class_size;
2456 class->packing_size = cached_info.packing_size;
2457 class->min_align = cached_info.min_align;
2458 class->blittable = cached_info.blittable;
2459 class->has_references = cached_info.has_references;
2460 class->has_static_refs = cached_info.has_static_refs;
2461 class->no_special_static_fields = cached_info.no_special_static_fields;
2464 if (!class->size_inited){
2465 mono_class_setup_fields (class);
2466 if (class->exception_type || mono_loader_get_last_error ()){
2467 class_init_ok = FALSE;
2473 /* initialize method pointers */
2476 MonoMethodSignature *sig;
2477 int count_generic = 0, first_generic = 0;
2479 class->method.count = (class->rank > 1? 2: 1);
2481 if (class->interface_count) {
2482 for (i = 0; i < class->parent->method.count; i++) {
2483 MonoMethod *m = class->parent->methods [i];
2484 if (!strncmp (m->name, "InternalArray__", 15))
2487 first_generic = class->method.count;
2488 class->method.count += class->interface_count * count_generic;
2491 sig = mono_metadata_signature_alloc (class->image, class->rank);
2492 sig->ret = &mono_defaults.void_class->byval_arg;
2493 sig->pinvoke = TRUE;
2494 for (i = 0; i < class->rank; ++i)
2495 sig->params [i] = &mono_defaults.int32_class->byval_arg;
2497 ctor = (MonoMethod *) mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethodPInvoke));
2498 ctor->klass = class;
2499 ctor->flags = METHOD_ATTRIBUTE_PUBLIC | METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
2500 ctor->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
2501 ctor->signature = sig;
2502 ctor->name = ".ctor";
2504 class->methods = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethod*) * class->method.count);
2505 class->methods [0] = ctor;
2506 if (class->rank > 1) {
2507 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
2508 sig->ret = &mono_defaults.void_class->byval_arg;
2509 sig->pinvoke = TRUE;
2510 for (i = 0; i < class->rank * 2; ++i)
2511 sig->params [i] = &mono_defaults.int32_class->byval_arg;
2513 ctor = (MonoMethod *) mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethodPInvoke));
2514 ctor->klass = class;
2515 ctor->flags = METHOD_ATTRIBUTE_PUBLIC | METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
2516 ctor->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
2517 ctor->signature = sig;
2518 ctor->name = ".ctor";
2520 class->methods [1] = ctor;
2523 for (i = 0; i < class->interface_count; i++)
2524 setup_generic_array_ifaces (class, class->interfaces [i], first_generic + i * count_generic);
2527 mono_class_setup_supertypes (class);
2530 initialize_object_slots (class);
2533 * If possible, avoid the creation of the generic vtable by requesting
2534 * cached info from the runtime.
2536 if (has_cached_info) {
2537 guint32 cur_slot = 0;
2539 class->vtable_size = cached_info.vtable_size;
2540 class->has_finalize = cached_info.has_finalize;
2541 class->ghcimpl = cached_info.ghcimpl;
2542 class->has_cctor = cached_info.has_cctor;
2544 if (class->parent) {
2545 mono_class_init (class->parent);
2546 cur_slot = class->parent->vtable_size;
2549 setup_interface_offsets (class, cur_slot);
2552 mono_class_setup_vtable (class);
2554 if (class->exception_type || mono_loader_get_last_error ()){
2555 class_init_ok = FALSE;
2560 if (class->parent) {
2561 MonoMethod *cmethod = class->vtable [ghc_slot];
2562 if (cmethod->is_inflated)
2563 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
2564 if (cmethod == default_ghc) {
2569 /* Object::Finalize should have empty implemenatation */
2570 class->has_finalize = 0;
2571 if (class->parent) {
2572 MonoMethod *cmethod = class->vtable [finalize_slot];
2573 if (cmethod->is_inflated)
2574 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
2575 if (cmethod != default_finalize) {
2576 class->has_finalize = 1;
2580 for (i = 0; i < class->method.count; ++i) {
2581 MonoMethod *method = class->methods [i];
2582 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
2583 (strcmp (".cctor", method->name) == 0)) {
2584 class->has_cctor = 1;
2590 if (MONO_CLASS_IS_INTERFACE (class)) {
2592 * class->interface_offsets is needed for the castclass/isinst code, so
2593 * we have to setup them for interfaces, too.
2595 setup_interface_offsets (class, 0);
2600 class->init_pending = 0;
2602 mono_loader_unlock ();
2604 if (mono_debugger_class_init_func)
2605 mono_debugger_class_init_func (class);
2607 return class_init_ok;
2611 * LOCKING: this assumes the loader lock is held
2614 mono_class_setup_mono_type (MonoClass *class)
2616 const char *name = class->name;
2617 const char *nspace = class->name_space;
2619 class->this_arg.byref = 1;
2620 class->this_arg.data.klass = class;
2621 class->this_arg.type = MONO_TYPE_CLASS;
2622 class->byval_arg.data.klass = class;
2623 class->byval_arg.type = MONO_TYPE_CLASS;
2625 if (!strcmp (nspace, "System")) {
2626 if (!strcmp (name, "ValueType")) {
2628 * do not set the valuetype bit for System.ValueType.
2629 * class->valuetype = 1;
2631 class->blittable = TRUE;
2632 } else if (!strcmp (name, "Enum")) {
2634 * do not set the valuetype bit for System.Enum.
2635 * class->valuetype = 1;
2637 class->valuetype = 0;
2638 class->enumtype = 0;
2639 } else if (!strcmp (name, "Object")) {
2640 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
2641 } else if (!strcmp (name, "String")) {
2642 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
2643 } else if (!strcmp (name, "TypedReference")) {
2644 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
2648 if (class->valuetype) {
2649 int t = MONO_TYPE_VALUETYPE;
2650 if (!strcmp (nspace, "System")) {
2653 if (!strcmp (name, "Boolean")) {
2654 t = MONO_TYPE_BOOLEAN;
2655 } else if (!strcmp(name, "Byte")) {
2657 class->blittable = TRUE;
2661 if (!strcmp (name, "Char")) {
2666 if (!strcmp (name, "Double")) {
2668 class->blittable = TRUE;
2672 if (!strcmp (name, "Int32")) {
2674 class->blittable = TRUE;
2675 } else if (!strcmp(name, "Int16")) {
2677 class->blittable = TRUE;
2678 } else if (!strcmp(name, "Int64")) {
2680 class->blittable = TRUE;
2681 } else if (!strcmp(name, "IntPtr")) {
2683 class->blittable = TRUE;
2687 if (!strcmp (name, "Single")) {
2689 class->blittable = TRUE;
2690 } else if (!strcmp(name, "SByte")) {
2692 class->blittable = TRUE;
2696 if (!strcmp (name, "UInt32")) {
2698 class->blittable = TRUE;
2699 } else if (!strcmp(name, "UInt16")) {
2701 class->blittable = TRUE;
2702 } else if (!strcmp(name, "UInt64")) {
2704 class->blittable = TRUE;
2705 } else if (!strcmp(name, "UIntPtr")) {
2707 class->blittable = TRUE;
2711 if (!strcmp (name, "TypedReference")) {
2712 t = MONO_TYPE_TYPEDBYREF;
2713 class->blittable = TRUE;
2717 if (!strcmp (name, "Void")) {
2725 class->this_arg.type = class->byval_arg.type = t;
2728 if (MONO_CLASS_IS_INTERFACE (class))
2729 class->interface_id = mono_get_unique_iid (class);
2734 * LOCKING: this assumes the loader lock is held
2737 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
2739 gboolean system_namespace;
2741 system_namespace = !strcmp (class->name_space, "System");
2743 /* if root of the hierarchy */
2744 if (system_namespace && !strcmp (class->name, "Object")) {
2745 class->parent = NULL;
2746 class->instance_size = sizeof (MonoObject);
2749 if (!strcmp (class->name, "<Module>")) {
2750 class->parent = NULL;
2751 class->instance_size = 0;
2755 if (!MONO_CLASS_IS_INTERFACE (class)) {
2756 /* Imported COM Objects always derive from __ComObject. */
2757 if (MONO_CLASS_IS_IMPORT (class)) {
2758 if (parent == mono_defaults.object_class)
2759 parent = mono_defaults.com_object_class;
2761 class->parent = parent;
2765 g_assert_not_reached (); /* FIXME */
2767 if (parent->generic_class && !parent->name) {
2769 * If the parent is a generic instance, we may get
2770 * called before it is fully initialized, especially
2771 * before it has its name.
2776 class->marshalbyref = parent->marshalbyref;
2777 class->contextbound = parent->contextbound;
2778 class->delegate = parent->delegate;
2779 if (MONO_CLASS_IS_IMPORT (class))
2780 class->is_com_object = 1;
2782 class->is_com_object = parent->is_com_object;
2784 if (system_namespace) {
2785 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
2786 class->marshalbyref = 1;
2788 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
2789 class->contextbound = 1;
2791 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
2792 class->delegate = 1;
2795 if (class->parent->enumtype || ((strcmp (class->parent->name, "ValueType") == 0) &&
2796 (strcmp (class->parent->name_space, "System") == 0)))
2797 class->valuetype = 1;
2798 if (((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
2799 class->valuetype = class->enumtype = 1;
2801 /*class->enumtype = class->parent->enumtype; */
2802 mono_class_setup_supertypes (class);
2804 class->parent = NULL;
2810 * mono_class_setup_supertypes:
2813 * Build the data structure needed to make fast type checks work.
2814 * This currently sets two fields in @class:
2815 * - idepth: distance between @class and System.Object in the type
2817 * - supertypes: array of classes: each element has a class in the hierarchy
2818 * starting from @class up to System.Object
2820 * LOCKING: this assumes the loader lock is held
2823 mono_class_setup_supertypes (MonoClass *class)
2827 if (class->supertypes)
2830 if (class->parent && !class->parent->supertypes)
2831 mono_class_setup_supertypes (class->parent);
2833 class->idepth = class->parent->idepth + 1;
2837 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
2838 class->supertypes = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoClass *) * ms);
2840 if (class->parent) {
2841 class->supertypes [class->idepth - 1] = class;
2842 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
2844 class->supertypes [0] = class;
2849 mono_get_shared_generic_inst (MonoGenericContainer *container)
2851 MonoGenericInst *nginst;
2854 nginst = g_new0 (MonoGenericInst, 1);
2855 nginst->type_argc = container->type_argc;
2856 nginst->type_argv = g_new0 (MonoType *, nginst->type_argc);
2857 nginst->is_reference = 1;
2858 nginst->is_open = 1;
2860 for (i = 0; i < nginst->type_argc; i++) {
2861 MonoType *t = g_new0 (MonoType, 1);
2863 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
2864 t->data.generic_param = &container->type_params [i];
2866 nginst->type_argv [i] = t;
2869 return mono_metadata_lookup_generic_inst (nginst);
2873 * In preparation for implementing shared code.
2876 mono_get_shared_generic_class (MonoGenericContainer *container, gboolean is_dynamic)
2878 MonoInflatedGenericClass *igclass;
2879 MonoGenericClass *gclass;
2882 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2883 igclass = &dgclass->generic_class;
2884 gclass = &igclass->generic_class;
2885 gclass->is_inflated = 1;
2886 gclass->is_dynamic = 1;
2888 igclass = g_new0 (MonoInflatedGenericClass, 1);
2889 gclass = &igclass->generic_class;
2890 gclass->is_inflated = 1;
2893 gclass->context = &container->context;
2894 gclass->container_class = container->klass;
2895 gclass->inst = mono_get_shared_generic_inst (container);
2898 MonoGenericClass *cached = mono_metadata_lookup_generic_class (gclass);
2906 igclass->klass = container->klass;
2912 * mono_class_create_from_typedef:
2913 * @image: image where the token is valid
2914 * @type_token: typedef token
2916 * Create the MonoClass* representing the specified type token.
2917 * @type_token must be a TypeDef token.
2920 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
2922 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
2923 MonoClass *class, *parent = NULL;
2924 guint32 cols [MONO_TYPEDEF_SIZE];
2925 guint32 cols_next [MONO_TYPEDEF_SIZE];
2926 guint tidx = mono_metadata_token_index (type_token);
2927 MonoGenericContext *context = NULL;
2928 const char *name, *nspace;
2930 MonoClass **interfaces;
2931 guint32 field_last, method_last;
2932 guint32 nesting_tokeen;
2934 mono_loader_lock ();
2936 if ((class = g_hash_table_lookup (image->class_cache, GUINT_TO_POINTER (type_token)))) {
2937 mono_loader_unlock ();
2941 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
2943 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
2945 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
2946 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
2948 class = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
2951 class->name_space = nspace;
2953 class->image = image;
2954 class->type_token = type_token;
2955 class->flags = cols [MONO_TYPEDEF_FLAGS];
2957 g_hash_table_insert (image->class_cache, GUINT_TO_POINTER (type_token), class);
2960 * Check whether we're a generic type definition.
2962 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
2963 if (class->generic_container) {
2964 class->generic_container->klass = class;
2965 context = &class->generic_container->context;
2967 context->gclass = mono_get_shared_generic_class (context->container, FALSE);
2970 if (cols [MONO_TYPEDEF_EXTENDS]) {
2971 parent = mono_class_get_full (
2972 image, mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]), context);
2973 if (parent == NULL){
2974 g_hash_table_remove (image->class_cache, GUINT_TO_POINTER (type_token));
2975 mono_loader_unlock ();
2980 /* do this early so it's available for interfaces in setup_mono_type () */
2981 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
2982 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
2984 mono_class_setup_parent (class, parent);
2986 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
2987 mono_class_setup_mono_type (class);
2989 if (!class->enumtype) {
2990 if (!mono_metadata_interfaces_from_typedef_full (
2991 image, type_token, &interfaces, &icount, context)){
2992 mono_loader_unlock ();
2996 class->interfaces = interfaces;
2997 class->interface_count = icount;
3000 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
3004 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
3008 class->cast_class = class->element_class = class;
3010 /*g_print ("Load class %s\n", name);*/
3013 * Compute the field and method lists
3015 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
3016 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
3018 if (tt->rows > tidx){
3019 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
3020 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
3021 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
3023 field_last = image->tables [MONO_TABLE_FIELD].rows;
3024 method_last = image->tables [MONO_TABLE_METHOD].rows;
3027 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
3028 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
3029 class->field.count = field_last - class->field.first;
3031 class->field.count = 0;
3033 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
3034 class->method.count = method_last - class->method.first;
3036 class->method.count = 0;
3038 /* reserve space to store vector pointer in arrays */
3039 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
3040 class->instance_size += 2 * sizeof (gpointer);
3041 g_assert (class->field.count == 0);
3044 if (class->enumtype) {
3045 class->enum_basetype = mono_class_find_enum_basetype (class);
3046 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
3050 * If we're a generic type definition, load the constraints.
3051 * We must do this after the class has been constructed to make certain recursive scenarios
3054 if (class->generic_container)
3055 mono_metadata_load_generic_param_constraints (
3056 image, type_token, class->generic_container);
3058 mono_loader_unlock ();
3063 /** is klass Nullable<T>? */
3065 mono_class_is_nullable (MonoClass *klass)
3067 return klass->generic_class != NULL &&
3068 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
3072 /** if klass is T? return T */
3074 mono_class_get_nullable_param (MonoClass *klass)
3076 g_assert (mono_class_is_nullable (klass));
3077 return mono_class_from_mono_type (klass->generic_class->inst->type_argv [0]);
3081 * Create the `MonoClass' for an instantiation of a generic type.
3082 * We only do this if we actually need it.
3085 mono_class_create_generic (MonoInflatedGenericClass *gclass)
3087 MonoClass *klass, *gklass;
3090 mono_loader_lock ();
3091 if (gclass->is_initialized) {
3092 mono_loader_unlock ();
3097 gclass->klass = g_malloc0 (sizeof (MonoClass));
3098 klass = gclass->klass;
3100 gklass = gclass->generic_class.container_class;
3102 if (gklass->nested_in) {
3104 * FIXME: the nested type context should include everything the
3105 * nesting context should have, but it may also have additional
3106 * generic parameters...
3108 MonoType *inflated = mono_class_inflate_generic_type (
3109 &gklass->nested_in->byval_arg, gclass->generic_class.context);
3110 klass->nested_in = mono_class_from_mono_type (inflated);
3113 klass->name = gklass->name;
3114 klass->name_space = gklass->name_space;
3115 klass->image = gklass->image;
3116 klass->flags = gklass->flags;
3117 klass->type_token = gklass->type_token;
3119 klass->generic_class = &gclass->generic_class;
3121 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
3122 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = &gclass->generic_class;
3123 klass->this_arg.byref = TRUE;
3125 klass->cast_class = klass->element_class = klass;
3127 if (mono_class_is_nullable (klass))
3128 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
3130 if (gclass->generic_class.is_dynamic) {
3131 klass->instance_size = gklass->instance_size;
3132 klass->sizes.class_size = gklass->sizes.class_size;
3133 klass->size_inited = 1;
3136 klass->valuetype = gklass->valuetype;
3138 mono_class_setup_supertypes (klass);
3141 klass->interface_count = gklass->interface_count;
3142 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
3143 for (i = 0; i < klass->interface_count; i++) {
3144 MonoType *it = &gklass->interfaces [i]->byval_arg;
3145 MonoType *inflated = mono_class_inflate_generic_type (
3146 it, gclass->generic_class.context);
3147 klass->interfaces [i] = mono_class_from_mono_type (inflated);
3150 i = mono_metadata_nesting_typedef (klass->image, gklass->type_token, 1);
3153 guint32 cols [MONO_NESTED_CLASS_SIZE];
3154 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
3155 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
3156 klass->nested_classes = g_list_prepend (klass->nested_classes, nclass);
3158 i = mono_metadata_nesting_typedef (klass->image, gklass->type_token, i + 1);
3161 if (gklass->parent) {
3162 MonoType *inflated = mono_class_inflate_generic_type (
3163 &gklass->parent->byval_arg, gclass->generic_class.context);
3165 klass->parent = mono_class_from_mono_type (inflated);
3169 mono_class_setup_parent (klass, klass->parent);
3171 if (MONO_CLASS_IS_INTERFACE (klass))
3172 setup_interface_offsets (klass, 0);
3173 gclass->is_initialized = TRUE;
3174 mono_loader_unlock ();
3178 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
3180 MonoClass *klass, **ptr;
3184 return param->pklass;
3186 klass = param->pklass = g_new0 (MonoClass, 1);
3188 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
3192 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
3193 klass->parent = param->constraints [0];
3195 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
3196 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
3198 klass->parent = mono_defaults.object_class;
3200 if (count - pos > 0) {
3201 klass->interface_count = count - pos;
3202 klass->interfaces = g_new0 (MonoClass *, count - pos);
3203 for (i = pos; i < count; i++)
3204 klass->interfaces [i - pos] = param->constraints [i];
3208 klass->name = param->name;
3210 klass->name = g_strdup_printf (is_mvar ? "!!%d" : "!%d", param->num);
3212 klass->name_space = "";
3215 klass->image = image;
3216 else if (is_mvar && param->method && param->method->klass)
3217 klass->image = param->method->klass->image;
3218 else if (param->owner && param->owner->klass)
3219 klass->image = param->owner->klass->image;
3221 klass->image = mono_defaults.corlib;
3223 klass->inited = TRUE;
3224 klass->cast_class = klass->element_class = klass;
3225 klass->enum_basetype = &klass->element_class->byval_arg;
3226 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
3228 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
3229 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
3230 klass->this_arg.byref = TRUE;
3232 mono_class_setup_supertypes (klass);
3238 mono_ptr_class_get (MonoType *type)
3241 MonoClass *el_class;
3245 el_class = mono_class_from_mono_type (type);
3246 image = el_class->image;
3248 mono_loader_lock ();
3250 if (!image->ptr_cache)
3251 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
3253 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
3254 mono_loader_unlock ();
3257 result = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
3259 result->parent = NULL; /* no parent for PTR types */
3260 result->name_space = el_class->name_space;
3261 name = g_strdup_printf ("%s*", el_class->name);
3262 result->name = mono_mempool_strdup (image->mempool, name);
3264 result->image = el_class->image;
3265 result->inited = TRUE;
3266 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
3267 /* Can pointers get boxed? */
3268 result->instance_size = sizeof (gpointer);
3269 result->cast_class = result->element_class = el_class;
3270 result->enum_basetype = &result->element_class->byval_arg;
3271 result->blittable = TRUE;
3273 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
3274 result->this_arg.data.type = result->byval_arg.data.type = result->enum_basetype;
3275 result->this_arg.byref = TRUE;
3277 mono_class_setup_supertypes (result);
3279 g_hash_table_insert (image->ptr_cache, el_class, result);
3281 mono_loader_unlock ();
3287 mono_fnptr_class_get (MonoMethodSignature *sig)
3290 static GHashTable *ptr_hash = NULL;
3292 /* FIXME: These should be allocate from a mempool as well, but which one ? */
3294 mono_loader_lock ();
3297 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
3299 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
3300 mono_loader_unlock ();
3303 result = g_new0 (MonoClass, 1);
3305 result->parent = NULL; /* no parent for PTR types */
3306 result->name_space = "System";
3307 result->name = "MonoFNPtrFakeClass";
3308 result->image = mono_defaults.corlib; /* need to fix... */
3309 result->inited = TRUE;
3310 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
3311 /* Can pointers get boxed? */
3312 result->instance_size = sizeof (gpointer);
3313 result->cast_class = result->element_class = result;
3314 result->blittable = TRUE;
3316 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
3317 result->this_arg.data.method = result->byval_arg.data.method = sig;
3318 result->this_arg.byref = TRUE;
3319 result->enum_basetype = &result->element_class->byval_arg;
3320 result->blittable = TRUE;
3322 mono_class_setup_supertypes (result);
3324 g_hash_table_insert (ptr_hash, sig, result);
3326 mono_loader_unlock ();
3332 mono_class_from_mono_type (MonoType *type)
3334 switch (type->type) {
3335 case MONO_TYPE_OBJECT:
3336 return type->data.klass? type->data.klass: mono_defaults.object_class;
3337 case MONO_TYPE_VOID:
3338 return type->data.klass? type->data.klass: mono_defaults.void_class;
3339 case MONO_TYPE_BOOLEAN:
3340 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
3341 case MONO_TYPE_CHAR:
3342 return type->data.klass? type->data.klass: mono_defaults.char_class;
3344 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
3346 return type->data.klass? type->data.klass: mono_defaults.byte_class;
3348 return type->data.klass? type->data.klass: mono_defaults.int16_class;
3350 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
3352 return type->data.klass? type->data.klass: mono_defaults.int32_class;
3354 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
3356 return type->data.klass? type->data.klass: mono_defaults.int_class;
3358 return type->data.klass? type->data.klass: mono_defaults.uint_class;
3360 return type->data.klass? type->data.klass: mono_defaults.int64_class;
3362 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
3364 return type->data.klass? type->data.klass: mono_defaults.single_class;
3366 return type->data.klass? type->data.klass: mono_defaults.double_class;
3367 case MONO_TYPE_STRING:
3368 return type->data.klass? type->data.klass: mono_defaults.string_class;
3369 case MONO_TYPE_TYPEDBYREF:
3370 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
3371 case MONO_TYPE_ARRAY:
3372 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
3374 return mono_ptr_class_get (type->data.type);
3375 case MONO_TYPE_FNPTR:
3376 return mono_fnptr_class_get (type->data.method);
3377 case MONO_TYPE_SZARRAY:
3378 return mono_array_class_get (type->data.klass, 1);
3379 case MONO_TYPE_CLASS:
3380 case MONO_TYPE_VALUETYPE:
3381 return type->data.klass;
3382 case MONO_TYPE_GENERICINST: {
3383 MonoInflatedGenericClass *gclass;
3384 gclass = mono_get_inflated_generic_class (type->data.generic_class);
3385 g_assert (gclass->klass);
3386 return gclass->klass;
3389 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
3390 case MONO_TYPE_MVAR:
3391 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
3393 g_warning ("implement me 0x%02x\n", type->type);
3394 g_assert_not_reached ();
3401 * @image: context where the image is created
3402 * @type_spec: typespec token
3403 * @context: the generic context used to evaluate generic instantiations in
3406 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
3408 MonoType *t = mono_type_create_from_typespec (image, type_spec);
3411 if (context && (context->gclass || context->gmethod)) {
3412 MonoType *inflated = inflate_generic_type (t, context);
3416 return mono_class_from_mono_type (t);
3420 * mono_bounded_array_class_get:
3421 * @element_class: element class
3422 * @rank: the dimension of the array class
3423 * @bounded: whenever the array has non-zero bounds
3425 * Returns: a class object describing the array with element type @element_type and
3429 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
3433 MonoClass *parent = NULL;
3434 GSList *list, *rootlist;
3437 gboolean corlib_type = FALSE;
3439 g_assert (rank <= 255);
3442 /* bounded only matters for one-dimensional arrays */
3445 image = eclass->image;
3447 mono_loader_lock ();
3449 if (!image->array_cache)
3450 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
3452 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
3453 for (; list; list = list->next) {
3455 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
3456 mono_loader_unlock ();
3462 /* for the building corlib use System.Array from it */
3463 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
3464 parent = mono_class_from_name (image, "System", "Array");
3467 parent = mono_defaults.array_class;
3468 if (!parent->inited)
3469 mono_class_init (parent);
3472 class = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
3474 class->image = image;
3475 class->name_space = eclass->name_space;
3476 nsize = strlen (eclass->name);
3477 name = g_malloc (nsize + 2 + rank);
3478 memcpy (name, eclass->name, nsize);
3481 memset (name + nsize + 1, ',', rank - 1);
3482 name [nsize + rank] = ']';
3483 name [nsize + rank + 1] = 0;
3484 class->name = mono_mempool_strdup (image->mempool, name);
3486 class->type_token = 0;
3487 /* all arrays are marked serializable and sealed, bug #42779 */
3488 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
3489 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
3490 class->parent = parent;
3491 class->instance_size = mono_class_instance_size (class->parent);
3492 class->sizes.element_size = mono_class_array_element_size (eclass);
3493 mono_class_setup_supertypes (class);
3495 if (mono_defaults.generic_ilist_class) {
3496 MonoClass *fclass = NULL;
3499 if (eclass->valuetype) {
3500 if (eclass == mono_defaults.int16_class)
3501 fclass = mono_defaults.uint16_class;
3502 if (eclass == mono_defaults.uint16_class)
3503 fclass = mono_defaults.int16_class;
3504 if (eclass == mono_defaults.int32_class)
3505 fclass = mono_defaults.uint32_class;
3506 if (eclass == mono_defaults.uint32_class)
3507 fclass = mono_defaults.int32_class;
3508 if (eclass == mono_defaults.int64_class)
3509 fclass = mono_defaults.uint64_class;
3510 if (eclass == mono_defaults.uint64_class)
3511 fclass = mono_defaults.int64_class;
3512 if (eclass == mono_defaults.byte_class)
3513 fclass = mono_defaults.sbyte_class;
3514 if (eclass == mono_defaults.sbyte_class)
3515 fclass = mono_defaults.byte_class;
3517 class->interface_count = fclass ? 2 : 1;
3518 } else if (MONO_CLASS_IS_INTERFACE (eclass)) {
3519 class->interface_count = 2 + eclass->interface_count;
3521 class->interface_count = eclass->idepth + eclass->interface_count;
3524 class->interfaces = g_new0 (MonoClass *, class->interface_count);
3526 for (i = 0; i < class->interface_count; i++) {
3527 MonoType *inflated, **args;
3530 if (eclass->valuetype)
3531 iface = (i == 0) ? eclass : fclass;
3532 else if (MONO_CLASS_IS_INTERFACE (eclass)) {
3534 iface = mono_defaults.object_class;
3538 iface = eclass->interfaces [i - 2];
3540 if (i < eclass->idepth)
3541 iface = eclass->supertypes [i];
3543 iface = eclass->interfaces [i - eclass->idepth];
3546 args = g_new0 (MonoType *, 1);
3547 args [0] = &iface->byval_arg;
3549 inflated = mono_class_bind_generic_parameters (
3550 &mono_defaults.generic_ilist_class->byval_arg, 1, args);
3552 class->interfaces [i] = mono_class_from_mono_type (inflated);
3556 if (eclass->generic_class)
3557 mono_class_init (eclass);
3558 if (!eclass->size_inited)
3559 mono_class_setup_fields (eclass);
3560 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
3564 if (eclass->enumtype)
3565 class->cast_class = eclass->element_class;
3567 class->cast_class = eclass;
3569 class->element_class = eclass;
3571 if ((rank > 1) || bounded) {
3572 MonoArrayType *at = mono_mempool_alloc0 (image->mempool, sizeof (MonoArrayType));
3573 class->byval_arg.type = MONO_TYPE_ARRAY;
3574 class->byval_arg.data.array = at;
3575 at->eklass = eclass;
3577 /* FIXME: complete.... */
3579 class->byval_arg.type = MONO_TYPE_SZARRAY;
3580 class->byval_arg.data.klass = eclass;
3582 class->this_arg = class->byval_arg;
3583 class->this_arg.byref = 1;
3588 class->generic_container = eclass->generic_container;
3590 list = g_slist_append (rootlist, class);
3591 g_hash_table_insert (image->array_cache, eclass, list);
3593 mono_loader_unlock ();
3599 * mono_array_class_get:
3600 * @element_class: element class
3601 * @rank: the dimension of the array class
3603 * Returns: a class object describing the array with element type @element_type and
3607 mono_array_class_get (MonoClass *eclass, guint32 rank)
3609 return mono_bounded_array_class_get (eclass, rank, FALSE);
3613 * mono_class_instance_size:
3616 * Returns: the size of an object instance
3619 mono_class_instance_size (MonoClass *klass)
3621 if (!klass->size_inited)
3622 mono_class_init (klass);
3624 return klass->instance_size;
3628 * mono_class_min_align:
3631 * Returns: minimm alignment requirements
3634 mono_class_min_align (MonoClass *klass)
3636 if (!klass->size_inited)
3637 mono_class_init (klass);
3639 return klass->min_align;
3643 * mono_class_value_size:
3646 * This function is used for value types, and return the
3647 * space and the alignment to store that kind of value object.
3649 * Returns: the size of a value of kind @klass
3652 mono_class_value_size (MonoClass *klass, guint32 *align)
3656 /* fixme: check disable, because we still have external revereces to
3657 * mscorlib and Dummy Objects
3659 /*g_assert (klass->valuetype);*/
3661 size = mono_class_instance_size (klass) - sizeof (MonoObject);
3664 *align = klass->min_align;
3670 * mono_class_data_size:
3673 * Returns: the size of the static class data
3676 mono_class_data_size (MonoClass *klass)
3679 mono_class_init (klass);
3681 /* in arrays, sizes.class_size is unioned with element_size
3682 * and arrays have no static fields
3686 return klass->sizes.class_size;
3690 * Auxiliary routine to mono_class_get_field
3692 * Takes a field index instead of a field token.
3694 static MonoClassField *
3695 mono_class_get_field_idx (MonoClass *class, int idx)
3697 mono_class_setup_fields_locking (class);
3700 if (class->image->uncompressed_metadata) {
3702 * class->field.first points to the FieldPtr table, while idx points into the
3703 * Field table, so we have to do a search.
3705 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
3708 for (i = 0; i < class->field.count; ++i)
3709 if (class->fields [i].name == name)
3710 return &class->fields [i];
3711 g_assert_not_reached ();
3713 if (class->field.count) {
3714 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
3715 return &class->fields [idx - class->field.first];
3719 class = class->parent;
3725 * mono_class_get_field:
3726 * @class: the class to lookup the field.
3727 * @field_token: the field token
3729 * Returns: A MonoClassField representing the type and offset of
3730 * the field, or a NULL value if the field does not belong to this
3734 mono_class_get_field (MonoClass *class, guint32 field_token)
3736 int idx = mono_metadata_token_index (field_token);
3738 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
3740 return mono_class_get_field_idx (class, idx - 1);
3744 * mono_class_get_field_from_name:
3745 * @klass: the class to lookup the field.
3746 * @name: the field name
3748 * Search the class @klass and it's parents for a field with the name @name.
3750 * Returns: the MonoClassField pointer of the named field or NULL
3753 mono_class_get_field_from_name (MonoClass *klass, const char *name)
3757 mono_class_setup_fields_locking (klass);
3759 for (i = 0; i < klass->field.count; ++i) {
3760 if (strcmp (name, klass->fields [i].name) == 0)
3761 return &klass->fields [i];
3763 klass = klass->parent;
3769 * mono_class_get_field_token:
3770 * @field: the field we need the token of
3772 * Get the token of a field. Note that the tokesn is only valid for the image
3773 * the field was loaded from. Don't use this function for fields in dynamic types.
3775 * Returns: the token representing the field in the image it was loaded from.
3778 mono_class_get_field_token (MonoClassField *field)
3780 MonoClass *klass = field->parent;
3783 mono_class_setup_fields_locking (klass);
3785 for (i = 0; i < klass->field.count; ++i) {
3786 if (&klass->fields [i] == field) {
3787 int idx = klass->field.first + i + 1;
3789 if (klass->image->uncompressed_metadata)
3790 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
3791 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
3794 klass = klass->parent;
3797 g_assert_not_reached ();
3802 mono_class_get_event_token (MonoEvent *event)
3804 MonoClass *klass = event->parent;
3808 for (i = 0; i < klass->event.count; ++i) {
3809 if (&klass->events [i] == event)
3810 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->event.first + i + 1);
3812 klass = klass->parent;
3815 g_assert_not_reached ();
3820 mono_class_get_property_from_name (MonoClass *klass, const char *name)
3824 gpointer iter = NULL;
3825 while ((p = mono_class_get_properties (klass, &iter))) {
3826 if (! strcmp (name, p->name))
3829 klass = klass->parent;
3835 mono_class_get_property_token (MonoProperty *prop)
3837 MonoClass *klass = prop->parent;
3841 gpointer iter = NULL;
3842 while ((p = mono_class_get_properties (klass, &iter))) {
3843 if (&klass->properties [i] == prop)
3844 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->property.first + i + 1);
3848 klass = klass->parent;
3851 g_assert_not_reached ();
3856 mono_class_name_from_token (MonoImage *image, guint32 type_token)
3858 const char *name, *nspace;
3860 return g_strdup_printf ("DynamicType 0x%08x", type_token);
3862 switch (type_token & 0xff000000){
3863 case MONO_TOKEN_TYPE_DEF: {
3864 guint32 cols [MONO_TYPEDEF_SIZE];
3865 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
3866 guint tidx = mono_metadata_token_index (type_token);
3868 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
3869 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
3870 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
3871 if (strlen (nspace) == 0)
3872 return g_strdup_printf ("%s", name);
3874 return g_strdup_printf ("%s.%s", nspace, name);
3877 case MONO_TOKEN_TYPE_REF: {
3878 guint32 cols [MONO_TYPEREF_SIZE];
3879 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
3881 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
3882 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
3883 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
3884 if (strlen (nspace) == 0)
3885 return g_strdup_printf ("%s", name);
3887 return g_strdup_printf ("%s.%s", nspace, name);
3890 case MONO_TOKEN_TYPE_SPEC:
3891 return g_strdup_printf ("Typespec 0x%08x", type_token);
3893 g_assert_not_reached ();
3900 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
3903 return g_strdup_printf ("DynamicAssembly %s", image->name);
3905 switch (type_token & 0xff000000){
3906 case MONO_TOKEN_TYPE_DEF:
3907 return mono_stringify_assembly_name (&image->assembly->aname);
3909 case MONO_TOKEN_TYPE_REF: {
3910 MonoAssemblyName aname;
3911 guint32 cols [MONO_TYPEREF_SIZE];
3912 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
3915 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
3917 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
3918 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
3919 case MONO_RESOLTION_SCOPE_MODULE:
3921 return g_strdup ("");
3922 case MONO_RESOLTION_SCOPE_MODULEREF:
3924 return g_strdup ("");
3925 case MONO_RESOLTION_SCOPE_TYPEREF:
3927 return g_strdup ("");
3928 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
3929 mono_assembly_get_assemblyref (image, idx - 1, &aname);
3930 return mono_stringify_assembly_name (&aname);
3932 g_assert_not_reached ();
3936 case MONO_TOKEN_TYPE_SPEC:
3938 return g_strdup ("");
3940 g_assert_not_reached ();
3947 * mono_class_get_full:
3948 * @image: the image where the class resides
3949 * @type_token: the token for the class
3950 * @context: the generic context used to evaluate generic instantiations in
3952 * Returns: the MonoClass that represents @type_token in @image
3955 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
3957 MonoClass *class = NULL;
3960 return mono_lookup_dynamic_token (image, type_token);
3962 switch (type_token & 0xff000000){
3963 case MONO_TOKEN_TYPE_DEF:
3964 class = mono_class_create_from_typedef (image, type_token);
3966 case MONO_TOKEN_TYPE_REF:
3967 class = mono_class_from_typeref (image, type_token);
3969 case MONO_TOKEN_TYPE_SPEC:
3970 class = mono_class_create_from_typespec (image, type_token, context);
3973 g_warning ("unknown token type %x", type_token & 0xff000000);
3974 g_assert_not_reached ();
3978 char *name = mono_class_name_from_token (image, type_token);
3979 char *assembly = mono_assembly_name_from_token (image, type_token);
3980 mono_loader_set_error_type_load (name, assembly);
3987 mono_class_get (MonoImage *image, guint32 type_token)
3989 return mono_class_get_full (image, type_token, NULL);
3993 * mono_image_init_name_cache:
3995 * Initializes the class name cache stored in image->name_cache.
3997 * LOCKING: Acquires the loader lock.
4000 mono_image_init_name_cache (MonoImage *image)
4002 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
4003 guint32 cols [MONO_TYPEDEF_SIZE];
4006 guint32 i, visib, nspace_index;
4007 GHashTable *name_cache2, *nspace_table;
4009 mono_loader_lock ();
4011 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
4013 if (image->dynamic) {
4014 mono_loader_unlock ();
4018 /* Temporary hash table to avoid lookups in the nspace_table */
4019 name_cache2 = g_hash_table_new (NULL, NULL);
4021 for (i = 1; i <= t->rows; ++i) {
4022 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
4023 /* nested types are accessed from the nesting name */
4024 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
4025 if (visib > TYPE_ATTRIBUTE_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_ASSEMBLY)
4027 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4028 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4030 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
4031 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
4032 if (!nspace_table) {
4033 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
4034 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
4035 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
4038 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
4041 /* Load type names from EXPORTEDTYPES table */
4043 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
4044 guint32 cols [MONO_EXP_TYPE_SIZE];
4047 for (i = 0; i < t->rows; ++i) {
4048 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
4049 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
4050 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
4052 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
4053 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
4054 if (!nspace_table) {
4055 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
4056 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
4057 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
4060 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
4064 g_hash_table_destroy (name_cache2);
4066 mono_loader_unlock ();
4070 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
4071 const char *name, guint32 index)
4073 GHashTable *nspace_table;
4074 GHashTable *name_cache;
4076 mono_loader_lock ();
4078 if (!image->name_cache)
4079 mono_image_init_name_cache (image);
4081 name_cache = image->name_cache;
4082 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
4083 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
4084 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
4086 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
4088 mono_loader_unlock ();
4097 find_nocase (gpointer key, gpointer value, gpointer user_data)
4099 char *name = (char*)key;
4100 FindUserData *data = (FindUserData*)user_data;
4102 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
4103 data->value = value;
4107 * mono_class_from_name_case:
4108 * @image: The MonoImage where the type is looked up in, or NULL for looking up in all loaded assemblies
4109 * @name_space: the type namespace
4110 * @name: the type short name.
4112 * Obtains a MonoClass with a given namespace and a given name which
4113 * is located in the given MonoImage. The namespace and name
4114 * lookups are case insensitive.
4117 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
4119 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
4120 guint32 cols [MONO_TYPEDEF_SIZE];
4125 if (image->dynamic) {
4127 FindUserData user_data;
4129 mono_loader_lock ();
4131 if (!image->name_cache)
4132 mono_image_init_name_cache (image);
4134 user_data.key = name_space;
4135 user_data.value = NULL;
4136 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
4138 if (user_data.value) {
4139 GHashTable *nspace_table = (GHashTable*)user_data.value;
4141 user_data.key = name;
4142 user_data.value = NULL;
4144 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
4146 if (user_data.value)
4147 token = GPOINTER_TO_UINT (user_data.value);
4150 mono_loader_unlock ();
4153 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
4159 /* add a cache if needed */
4160 for (i = 1; i <= t->rows; ++i) {
4161 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
4162 /* nested types are accessed from the nesting name */
4163 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
4164 if (visib > TYPE_ATTRIBUTE_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_ASSEMBLY)
4166 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4167 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4168 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
4169 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
4175 return_nested_in (MonoClass *class, char *nested) {
4177 char *s = strchr (nested, '/');
4184 for (tmp = class->nested_classes; tmp; tmp = tmp->next) {
4186 if (strcmp (found->name, nested) == 0) {
4188 return return_nested_in (found, s);
4197 * mono_class_from_name:
4198 * @image: The MonoImage where the type is looked up in, or NULL for looking up in all loaded assemblies
4199 * @name_space: the type namespace
4200 * @name: the type short name.
4202 * Obtains a MonoClass with a given namespace and a given name which
4203 * is located in the given MonoImage.
4206 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
4208 GHashTable *nspace_table;
4209 MonoImage *loaded_image;
4215 if ((nested = strchr (name, '/'))) {
4216 int pos = nested - name;
4217 int len = strlen (name);
4220 memcpy (buf, name, len + 1);
4222 nested = buf + pos + 1;
4226 if (get_class_from_name) {
4227 gboolean res = get_class_from_name (image, name_space, name, &class);
4230 return class ? return_nested_in (class, nested) : NULL;
4236 mono_loader_lock ();
4238 if (!image->name_cache)
4239 mono_image_init_name_cache (image);
4241 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
4244 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
4246 mono_loader_unlock ();
4251 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
4252 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
4253 guint32 cols [MONO_EXP_TYPE_SIZE];
4256 idx = mono_metadata_token_index (token);
4258 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
4260 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
4261 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
4262 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
4265 class = mono_class_from_name (loaded_image, name_space, name);
4267 return return_nested_in (class, nested);
4269 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
4270 MonoAssembly **references = image->references;
4271 if (!references [idx - 1])
4272 mono_assembly_load_reference (image, idx - 1);
4273 g_assert (references == image->references);
4274 g_assert (references [idx - 1]);
4275 if (references [idx - 1] == (gpointer)-1)
4278 /* FIXME: Cycle detection */
4279 return mono_class_from_name (references [idx - 1]->image, name_space, name);
4281 g_error ("not yet implemented");
4285 token = MONO_TOKEN_TYPE_DEF | token;
4287 class = mono_class_get (image, token);
4289 return return_nested_in (class, nested);
4294 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
4295 gboolean check_interfaces)
4297 g_assert (klassc->idepth > 0);
4298 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
4299 if ((klassc->interface_id <= klass->max_interface_id) &&
4300 (klass->interface_offsets [klassc->interface_id] >= 0))
4302 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
4305 for (i = 0; i < klass->interface_count; i ++) {
4306 MonoClass *ic = klass->interfaces [i];
4311 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
4316 * MS.NET thinks interfaces are a subclass of Object, so we think it as
4319 if (klassc == mono_defaults.object_class)
4326 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
4329 mono_class_init (klass);
4331 if (!oklass->inited)
4332 mono_class_init (oklass);
4334 if (MONO_CLASS_IS_INTERFACE (klass)) {
4335 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
4338 /* interface_offsets might not be set for dynamic classes */
4339 if (oklass->reflection_info && !oklass->interface_offsets)
4341 * oklass might be a generic type parameter but they have
4342 * interface_offsets set.
4344 return mono_reflection_call_is_assignable_to (oklass, klass);
4346 if ((klass->interface_id <= oklass->max_interface_id) &&
4347 (oklass->interface_offsets [klass->interface_id] != -1))
4349 } else if (klass->rank) {
4350 MonoClass *eclass, *eoclass;
4352 if (oklass->rank != klass->rank)
4355 /* vectors vs. one dimensional arrays */
4356 if (oklass->byval_arg.type != klass->byval_arg.type)
4359 eclass = klass->cast_class;
4360 eoclass = oklass->cast_class;
4363 * a is b does not imply a[] is b[] when a is a valuetype, and
4364 * b is a reference type.
4367 if (eoclass->valuetype) {
4368 if ((eclass == mono_defaults.enum_class) ||
4369 (eclass == mono_defaults.enum_class->parent) ||
4370 (eclass == mono_defaults.object_class))
4374 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
4375 } else if (mono_class_is_nullable (klass))
4376 return (mono_class_is_assignable_from (klass->cast_class, oklass));
4377 else if (klass == mono_defaults.object_class)
4380 return mono_class_has_parent (oklass, klass);
4384 * mono_class_get_cctor:
4386 * Returns the static constructor of @klass if it exists, NULL otherwise.
4389 mono_class_get_cctor (MonoClass *klass)
4391 MonoCachedClassInfo cached_info;
4393 if (!klass->has_cctor)
4396 if (mono_class_get_cached_class_info (klass, &cached_info))
4397 return mono_get_method (klass->image, cached_info.cctor_token, klass);
4399 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
4403 * mono_class_get_finalizer:
4405 * Returns the finalizer method of @klass if it exists, NULL otherwise.
4408 mono_class_get_finalizer (MonoClass *klass)
4410 MonoCachedClassInfo cached_info;
4413 mono_class_init (klass);
4414 if (!klass->has_finalize)
4417 if (mono_class_get_cached_class_info (klass, &cached_info))
4418 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
4420 mono_class_setup_vtable (klass);
4421 return klass->vtable [finalize_slot];
4426 * mono_class_needs_cctor_run:
4428 * Determines whenever the class has a static constructor and whenever it
4429 * needs to be called when executing CALLER.
4432 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
4436 method = mono_class_get_cctor (klass);
4438 return (method == caller) ? FALSE : TRUE;
4444 * mono_class_array_element_size:
4447 * Returns: the number of bytes an element of type @klass
4448 * uses when stored into an array.
4451 mono_class_array_element_size (MonoClass *klass)
4453 MonoType *type = &klass->byval_arg;
4456 switch (type->type) {
4459 case MONO_TYPE_BOOLEAN:
4463 case MONO_TYPE_CHAR:
4472 case MONO_TYPE_CLASS:
4473 case MONO_TYPE_STRING:
4474 case MONO_TYPE_OBJECT:
4475 case MONO_TYPE_SZARRAY:
4476 case MONO_TYPE_ARRAY:
4478 case MONO_TYPE_MVAR:
4479 return sizeof (gpointer);
4484 case MONO_TYPE_VALUETYPE:
4485 if (type->data.klass->enumtype) {
4486 type = type->data.klass->enum_basetype;
4487 klass = klass->element_class;
4490 return mono_class_instance_size (klass) - sizeof (MonoObject);
4491 case MONO_TYPE_GENERICINST:
4492 type = &type->data.generic_class->container_class->byval_arg;
4495 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
4501 * mono_array_element_size:
4502 * @ac: pointer to a #MonoArrayClass
4504 * Returns: the size of single array element.
4507 mono_array_element_size (MonoClass *ac)
4509 g_assert (ac->rank);
4510 return ac->sizes.element_size;
4514 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
4515 MonoGenericContext *context)
4517 if (image->dynamic) {
4518 MonoClass *tmp_handle_class;
4519 gpointer obj = mono_lookup_dynamic_token_class (image, token, &tmp_handle_class);
4521 g_assert (tmp_handle_class);
4523 *handle_class = tmp_handle_class;
4525 if (tmp_handle_class == mono_defaults.typehandle_class)
4526 return &((MonoClass*)obj)->byval_arg;
4531 switch (token & 0xff000000) {
4532 case MONO_TOKEN_TYPE_DEF:
4533 case MONO_TOKEN_TYPE_REF:
4534 case MONO_TOKEN_TYPE_SPEC: {
4537 *handle_class = mono_defaults.typehandle_class;
4538 class = mono_class_get_full (image, token, context);
4541 mono_class_init (class);
4542 /* We return a MonoType* as handle */
4543 return &class->byval_arg;
4545 case MONO_TOKEN_FIELD_DEF: {
4547 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
4549 *handle_class = mono_defaults.fieldhandle_class;
4550 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
4553 mono_class_init (class);
4554 return mono_class_get_field (class, token);
4556 case MONO_TOKEN_METHOD_DEF: {
4558 meth = mono_get_method_full (image, token, NULL, context);
4560 *handle_class = mono_defaults.methodhandle_class;
4563 case MONO_TOKEN_MEMBER_REF: {
4564 guint32 cols [MONO_MEMBERREF_SIZE];
4566 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
4567 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
4568 mono_metadata_decode_blob_size (sig, &sig);
4569 if (*sig == 0x6) { /* it's a field */
4571 MonoClassField *field;
4572 field = mono_field_from_token (image, token, &klass, context);
4574 *handle_class = mono_defaults.fieldhandle_class;
4578 meth = mono_get_method_full (image, token, NULL, context);
4580 *handle_class = mono_defaults.methodhandle_class;
4585 g_warning ("Unknown token 0x%08x in ldtoken", token);
4592 * This function might need to call runtime functions so it can't be part
4593 * of the metadata library.
4595 static MonoLookupDynamicToken lookup_dynamic = NULL;
4598 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
4600 lookup_dynamic = func;
4604 mono_lookup_dynamic_token (MonoImage *image, guint32 token)
4606 MonoClass *handle_class;
4608 return lookup_dynamic (image, token, &handle_class);
4612 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, MonoClass **handle_class)
4614 return lookup_dynamic (image, token, handle_class);
4617 static MonoGetCachedClassInfo get_cached_class_info = NULL;
4620 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
4622 get_cached_class_info = func;
4626 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
4628 if (!get_cached_class_info)
4631 return get_cached_class_info (klass, res);
4635 mono_install_get_class_from_name (MonoGetClassFromName func)
4637 get_class_from_name = func;
4641 mono_class_get_image (MonoClass *klass)
4643 return klass->image;
4647 * mono_class_get_element_class:
4648 * @klass: the MonoClass to act on
4650 * Returns: the element class of an array or an enumeration.
4653 mono_class_get_element_class (MonoClass *klass)
4655 return klass->element_class;
4659 * mono_class_is_valuetype:
4660 * @klass: the MonoClass to act on
4662 * Returns: true if the MonoClass represents a ValueType.
4665 mono_class_is_valuetype (MonoClass *klass)
4667 return klass->valuetype;
4671 * mono_class_is_enum:
4672 * @klass: the MonoClass to act on
4674 * Returns: true if the MonoClass represents an enumeration.
4677 mono_class_is_enum (MonoClass *klass)
4679 return klass->enumtype;
4683 * mono_class_enum_basetype:
4684 * @klass: the MonoClass to act on
4686 * Returns: the underlying type representation for an enumeration.
4689 mono_class_enum_basetype (MonoClass *klass)
4691 return klass->enum_basetype;
4695 * mono_class_get_parent
4696 * @klass: the MonoClass to act on
4698 * Returns: the parent class for this class.
4701 mono_class_get_parent (MonoClass *klass)
4703 return klass->parent;
4707 * mono_class_get_nesting_type;
4708 * @klass: the MonoClass to act on
4710 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
4713 mono_class_get_nesting_type (MonoClass *klass)
4715 return klass->nested_in;
4719 * mono_class_get_rank:
4720 * @klass: the MonoClass to act on
4722 * Returns: the rank for the array (the number of dimensions).
4725 mono_class_get_rank (MonoClass *klass)
4731 * mono_class_get_flags:
4732 * @klass: the MonoClass to act on
4734 * The type flags from the TypeDef table from the metadata.
4735 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
4738 * Returns: the flags from the TypeDef table.
4741 mono_class_get_flags (MonoClass *klass)
4743 return klass->flags;
4747 * mono_class_get_name
4748 * @klass: the MonoClass to act on
4750 * Returns: the name of the class.
4753 mono_class_get_name (MonoClass *klass)
4759 * mono_class_get_namespace:
4760 * @klass: the MonoClass to act on
4762 * Returns: the namespace of the class.
4765 mono_class_get_namespace (MonoClass *klass)
4767 return klass->name_space;
4771 * mono_class_get_type:
4772 * @klass: the MonoClass to act on
4774 * This method returns the internal Type representation for the class.
4776 * Returns: the MonoType from the class.
4779 mono_class_get_type (MonoClass *klass)
4781 return &klass->byval_arg;
4785 * mono_class_get_type_token
4786 * @klass: the MonoClass to act on
4788 * This method returns type token for the class.
4790 * Returns: the type token for the class.
4793 mono_class_get_type_token (MonoClass *klass)
4795 return klass->type_token;
4799 * mono_class_get_byref_type:
4800 * @klass: the MonoClass to act on
4805 mono_class_get_byref_type (MonoClass *klass)
4807 return &klass->this_arg;
4811 * mono_class_num_fields:
4812 * @klass: the MonoClass to act on
4814 * Returns: the number of static and instance fields in the class.
4817 mono_class_num_fields (MonoClass *klass)
4819 return klass->field.count;
4823 * mono_class_num_methods:
4824 * @klass: the MonoClass to act on
4826 * Returns: the number of methods in the class.
4829 mono_class_num_methods (MonoClass *klass)
4831 return klass->method.count;
4835 * mono_class_num_properties
4836 * @klass: the MonoClass to act on
4838 * Returns: the number of properties in the class.
4841 mono_class_num_properties (MonoClass *klass)
4843 mono_class_setup_properties (klass);
4845 return klass->property.count;
4849 * mono_class_num_events:
4850 * @klass: the MonoClass to act on
4852 * Returns: the number of events in the class.
4855 mono_class_num_events (MonoClass *klass)
4857 mono_class_setup_events (klass);
4859 return klass->event.count;
4863 * mono_class_get_fields:
4864 * @klass: the MonoClass to act on
4866 * This routine is an iterator routine for retrieving the fields in a class.
4868 * You must pass a gpointer that points to zero and is treated as an opaque handle to
4869 * iterate over all of the elements. When no more values are
4870 * available, the return value is NULL.
4872 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
4875 mono_class_get_fields (MonoClass* klass, gpointer *iter)
4877 MonoClassField* field;
4880 mono_class_setup_fields_locking (klass);
4882 /* start from the first */
4883 if (klass->field.count) {
4884 return *iter = &klass->fields [0];
4892 if (field < &klass->fields [klass->field.count]) {
4893 return *iter = field;
4899 * mono_class_get_methods
4900 * @klass: the MonoClass to act on
4902 * This routine is an iterator routine for retrieving the fields in a class.
4904 * You must pass a gpointer that points to zero and is treated as an opaque handle to
4905 * iterate over all of the elements. When no more values are
4906 * available, the return value is NULL.
4908 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
4911 mono_class_get_methods (MonoClass* klass, gpointer *iter)
4913 MonoMethod** method;
4917 mono_class_init (klass);
4919 mono_class_setup_methods (klass);
4920 /* start from the first */
4921 if (klass->method.count) {
4922 *iter = &klass->methods [0];
4923 return klass->methods [0];
4931 if (method < &klass->methods [klass->method.count]) {
4939 * mono_class_get_properties:
4940 * @klass: the MonoClass to act on
4942 * This routine is an iterator routine for retrieving the properties in a class.
4944 * You must pass a gpointer that points to zero and is treated as an opaque handle to
4945 * iterate over all of the elements. When no more values are
4946 * available, the return value is NULL.
4948 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
4951 mono_class_get_properties (MonoClass* klass, gpointer *iter)
4953 MonoProperty* property;
4957 mono_class_init (klass);
4959 mono_class_setup_properties (klass);
4960 /* start from the first */
4961 if (klass->property.count) {
4962 return *iter = &klass->properties [0];
4970 if (property < &klass->properties [klass->property.count]) {
4971 return *iter = property;
4977 * mono_class_get_events:
4978 * @klass: the MonoClass to act on
4980 * This routine is an iterator routine for retrieving the properties in a class.
4982 * You must pass a gpointer that points to zero and is treated as an opaque handle to
4983 * iterate over all of the elements. When no more values are
4984 * available, the return value is NULL.
4986 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
4989 mono_class_get_events (MonoClass* klass, gpointer *iter)
4995 mono_class_init (klass);
4997 mono_class_setup_events (klass);
4998 /* start from the first */
4999 if (klass->event.count) {
5000 return *iter = &klass->events [0];
5008 if (event < &klass->events [klass->event.count]) {
5009 return *iter = event;
5015 * mono_class_get_interfaces
5016 * @klass: the MonoClass to act on
5018 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
5020 * You must pass a gpointer that points to zero and is treated as an opaque handle to
5021 * iterate over all of the elements. When no more values are
5022 * available, the return value is NULL.
5024 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
5027 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
5033 mono_class_init (klass);
5035 /* start from the first */
5036 if (klass->interface_count) {
5037 *iter = &klass->interfaces [0];
5038 return klass->interfaces [0];
5046 if (iface < &klass->interfaces [klass->interface_count]) {
5054 * mono_class_get_nested_types
5055 * @klass: the MonoClass to act on
5057 * This routine is an iterator routine for retrieving the nested types of a class.
5059 * You must pass a gpointer that points to zero and is treated as an opaque handle to
5060 * iterate over all of the elements. When no more values are
5061 * available, the return value is NULL.
5063 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
5066 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
5072 mono_class_init (klass);
5074 /* start from the first */
5075 if (klass->nested_classes) {
5076 *iter = klass->nested_classes;
5077 return klass->nested_classes->data;
5079 /* no nested types */
5093 * mono_field_get_name:
5094 * @field: the MonoClassField to act on
5096 * Returns: the name of the field.
5099 mono_field_get_name (MonoClassField *field)
5105 * mono_field_get_type:
5106 * @field: the MonoClassField to act on
5108 * Returns: MonoType of the field.
5111 mono_field_get_type (MonoClassField *field)
5117 * mono_field_get_type:
5118 * @field: the MonoClassField to act on
5120 * Returns: MonoClass where the field was defined.
5123 mono_field_get_parent (MonoClassField *field)
5125 return field->parent;
5129 * mono_field_get_flags;
5130 * @field: the MonoClassField to act on
5132 * The metadata flags for a field are encoded using the
5133 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
5135 * Returns: the flags for the field.
5138 mono_field_get_flags (MonoClassField *field)
5140 return field->type->attrs;
5144 * mono_field_get_data;
5145 * @field: the MonoClassField to act on
5147 * Returns: pointer to the metadata constant value or to the field
5148 * data if it has an RVA flag.
5151 mono_field_get_data (MonoClassField *field)
5157 * mono_property_get_name:
5158 * @prop: the MonoProperty to act on
5160 * Returns: the name of the property
5163 mono_property_get_name (MonoProperty *prop)
5169 * mono_property_get_set_method
5170 * @prop: the MonoProperty to act on.
5172 * Returns: the setter method of the property (A MonoMethod)
5175 mono_property_get_set_method (MonoProperty *prop)
5181 * mono_property_get_get_method
5182 * @prop: the MonoProperty to act on.
5184 * Returns: the setter method of the property (A MonoMethod)
5187 mono_property_get_get_method (MonoProperty *prop)
5193 * mono_property_get_parent:
5194 * @prop: the MonoProperty to act on.
5196 * Returns: the MonoClass where the property was defined.
5199 mono_property_get_parent (MonoProperty *prop)
5201 return prop->parent;
5205 * mono_property_get_flags:
5206 * @prop: the MonoProperty to act on.
5208 * The metadata flags for a property are encoded using the
5209 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
5211 * Returns: the flags for the property.
5214 mono_property_get_flags (MonoProperty *prop)
5220 * mono_event_get_name:
5221 * @event: the MonoEvent to act on
5223 * Returns: the name of the event.
5226 mono_event_get_name (MonoEvent *event)
5232 * mono_event_get_add_method:
5233 * @event: The MonoEvent to act on.
5235 * Returns: the @add' method for the event (a MonoMethod).
5238 mono_event_get_add_method (MonoEvent *event)
5244 * mono_event_get_remove_method:
5245 * @event: The MonoEvent to act on.
5247 * Returns: the @remove method for the event (a MonoMethod).
5250 mono_event_get_remove_method (MonoEvent *event)
5252 return event->remove;
5256 * mono_event_get_raise_method:
5257 * @event: The MonoEvent to act on.
5259 * Returns: the @raise method for the event (a MonoMethod).
5262 mono_event_get_raise_method (MonoEvent *event)
5264 return event->raise;
5268 * mono_event_get_parent:
5269 * @event: the MonoEvent to act on.
5271 * Returns: the MonoClass where the event is defined.
5274 mono_event_get_parent (MonoEvent *event)
5276 return event->parent;
5280 * mono_event_get_flags
5281 * @event: the MonoEvent to act on.
5283 * The metadata flags for an event are encoded using the
5284 * EVENT_* constants. See the tabledefs.h file for details.
5286 * Returns: the flags for the event.
5289 mono_event_get_flags (MonoEvent *event)
5291 return event->attrs;
5295 * mono_class_get_method_from_name:
5296 * @klass: where to look for the method
5297 * @name_space: name of the method
5298 * @param_count: number of parameters. -1 for any number.
5300 * Obtains a MonoMethod with a given name and number of parameters.
5301 * It only works if there are no multiple signatures for any given method name.
5304 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
5306 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
5310 * mono_class_get_method_from_name_flags:
5311 * @klass: where to look for the method
5312 * @name_space: name of the method
5313 * @param_count: number of parameters. -1 for any number.
5314 * @flags: flags which must be set in the method
5316 * Obtains a MonoMethod with a given name and number of parameters.
5317 * It only works if there are no multiple signatures for any given method name.
5320 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
5322 MonoMethod *res = NULL;
5325 mono_class_init (klass);
5327 if (klass->methods) {
5328 mono_class_setup_methods (klass);
5329 for (i = 0; i < klass->method.count; ++i) {
5330 MonoMethod *method = klass->methods [i];
5332 if (method->name[0] == name [0] &&
5333 !strcmp (name, method->name) &&
5334 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
5335 ((method->flags & flags) == flags)) {
5342 /* Search directly in the metadata to avoid calling setup_methods () */
5343 for (i = 0; i < klass->method.count; ++i) {
5344 guint32 cols [MONO_METHOD_SIZE];
5347 /* class->method.first points into the methodptr table */
5348 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
5350 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
5351 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
5352 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
5364 * mono_class_set_failure:
5365 * @klass: class in which the failure was detected
5366 * @ex_type: the kind of exception/error to be thrown (later)
5367 * @ex_data: exception data (specific to each type of exception/error)
5369 * Keep a detected failure informations in the class for later processing.
5370 * Note that only the first failure is kept.
5373 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
5375 if (klass->exception_type)
5377 klass->exception_type = ex_type;
5378 klass->exception_data = ex_data;
5383 * mono_classes_init:
5385 * Initialize the resources used by this module.
5388 mono_classes_init (void)
5393 * mono_classes_cleanup:
5395 * Free the resources used by this module.
5398 mono_classes_cleanup (void)
5400 IOffsetInfo *cached_info, *next;
5402 if (global_interface_bitset)
5403 mono_bitset_free (global_interface_bitset);
5405 for (cached_info = cached_offset_info; cached_info;) {
5406 next = cached_info->next;
5408 g_free (cached_info);
5414 * mono_class_get_exception_for_failure:
5415 * @klass: class in which the failure was detected
5417 * Return a constructed MonoException than the caller can then throw
5418 * using mono_raise_exception - or NULL if no failure is present (or
5419 * doesn't result in an exception).
5422 mono_class_get_exception_for_failure (MonoClass *klass)
5424 switch (klass->exception_type) {
5425 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
5426 MonoDomain *domain = mono_domain_get ();
5427 MonoSecurityManager* secman = mono_security_manager_get_methods ();
5428 MonoMethod *method = klass->exception_data;
5429 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
5430 MonoObject *exc = NULL;
5434 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
5435 args [2] = mono_type_get_object (domain, &klass->byval_arg);
5436 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
5438 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
5439 return (MonoException*) exc;
5441 case MONO_EXCEPTION_TYPE_LOAD:
5442 return mono_exception_from_name (mono_defaults.corlib, "System", "TypeLoadException");
5445 MonoLoaderError *error;
5448 error = mono_loader_get_last_error ();
5450 ex = mono_loader_error_prepare_exception (error);
5454 /* TODO - handle other class related failures */