2 * class.c: Class management for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
7 * (C) 2001-2006 Novell, Inc.
17 #include <mono/io-layer/atomic.h>
19 #include <mono/metadata/image.h>
20 #include <mono/metadata/assembly.h>
21 #include <mono/metadata/metadata.h>
22 #include <mono/metadata/metadata-internals.h>
23 #include <mono/metadata/profiler-private.h>
24 #include <mono/metadata/tabledefs.h>
25 #include <mono/metadata/tokentype.h>
26 #include <mono/metadata/class-internals.h>
27 #include <mono/metadata/object.h>
28 #include <mono/metadata/appdomain.h>
29 #include <mono/metadata/mono-endian.h>
30 #include <mono/metadata/debug-helpers.h>
31 #include <mono/metadata/reflection.h>
32 #include <mono/metadata/exception.h>
33 #include <mono/metadata/security-manager.h>
34 #include <mono/metadata/security-core-clr.h>
35 #include <mono/metadata/attrdefs.h>
36 #include <mono/metadata/gc-internal.h>
37 #include <mono/utils/mono-counters.h>
41 gboolean mono_print_vtable = FALSE;
43 /* Function supplied by the runtime to find classes by name using information from the AOT file */
44 static MonoGetClassFromName get_class_from_name = NULL;
46 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
47 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
49 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
50 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
53 * mono_class_from_typeref:
55 * @type_token: a TypeRef token
57 * Creates the MonoClass* structure representing the type defined by
58 * the typeref token valid inside @image.
59 * Returns: the MonoClass* representing the typeref token, NULL ifcould
63 mono_class_from_typeref (MonoImage *image, guint32 type_token)
65 guint32 cols [MONO_TYPEREF_SIZE];
66 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
68 const char *name, *nspace;
72 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
74 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
75 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
77 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
78 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
79 case MONO_RESOLTION_SCOPE_MODULE:
81 g_error ("null ResolutionScope not yet handled");
82 /* a typedef in disguise */
83 return mono_class_from_name (image, nspace, name);
84 case MONO_RESOLTION_SCOPE_MODULEREF:
85 module = mono_image_load_module (image, idx);
87 return mono_class_from_name (module, nspace, name);
89 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
92 human_name = mono_stringify_assembly_name (&image->assembly->aname);
93 mono_loader_set_error_type_load (msg, human_name);
99 case MONO_RESOLTION_SCOPE_TYPEREF: {
100 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
103 if (enclosing->inited) {
104 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
105 for (tmp = enclosing->nested_classes; tmp; tmp = tmp->next) {
107 if (strcmp (res->name, name) == 0)
111 /* Don't call mono_class_init as we might've been called by it recursively */
112 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
114 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
115 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
116 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
118 if (strcmp (nname, name) == 0)
119 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
121 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
124 g_warning ("TypeRef ResolutionScope not yet handled (%d)", idx);
127 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
131 if (!image->references || !image->references [idx - 1])
132 mono_assembly_load_reference (image, idx - 1);
133 g_assert (image->references [idx - 1]);
135 /* If the assembly did not load, register this as a type load exception */
136 if (image->references [idx - 1] == REFERENCE_MISSING){
137 MonoAssemblyName aname;
140 mono_assembly_get_assemblyref (image, idx - 1, &aname);
141 human_name = mono_stringify_assembly_name (&aname);
142 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
148 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
151 /* Copy everything mono_metadata_free_array free. */
153 mono_dup_array_type (MonoArrayType *a)
155 a = g_memdup (a, sizeof (MonoArrayType));
157 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
159 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
163 /* Copy everything mono_metadata_free_method_signature free. */
165 mono_metadata_signature_deep_dup (MonoMethodSignature *sig)
169 sig = mono_metadata_signature_dup (sig);
171 sig->ret = mono_metadata_type_dup (NULL, sig->ret);
172 for (i = 0; i < sig->param_count; ++i)
173 sig->params [i] = mono_metadata_type_dup (NULL, sig->params [i]);
179 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
181 MonoAssembly *ta = klass->image->assembly;
183 g_string_append_printf (
184 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s",
186 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
187 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
188 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null");
192 mono_type_name_check_byref (MonoType *type, GString *str)
195 g_string_append_c (str, '&');
199 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
200 MonoTypeNameFormat format)
204 switch (type->type) {
205 case MONO_TYPE_ARRAY: {
206 int i, rank = type->data.array->rank;
207 MonoTypeNameFormat nested_format;
209 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
210 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
212 mono_type_get_name_recurse (
213 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
214 g_string_append_c (str, '[');
216 g_string_append_c (str, '*');
217 for (i = 1; i < rank; i++)
218 g_string_append_c (str, ',');
219 g_string_append_c (str, ']');
221 mono_type_name_check_byref (type, str);
223 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
224 _mono_type_get_assembly_name (type->data.array->eklass, str);
227 case MONO_TYPE_SZARRAY: {
228 MonoTypeNameFormat nested_format;
230 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
231 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
233 mono_type_get_name_recurse (
234 &type->data.klass->byval_arg, str, FALSE, nested_format);
235 g_string_append (str, "[]");
237 mono_type_name_check_byref (type, str);
239 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
240 _mono_type_get_assembly_name (type->data.klass, str);
243 case MONO_TYPE_PTR: {
244 MonoTypeNameFormat nested_format;
246 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
247 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
249 mono_type_get_name_recurse (
250 type->data.type, str, FALSE, nested_format);
251 g_string_append_c (str, '*');
253 mono_type_name_check_byref (type, str);
255 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
256 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
261 g_assert (type->data.generic_param->name);
262 g_string_append (str, type->data.generic_param->name);
264 mono_type_name_check_byref (type, str);
268 klass = mono_class_from_mono_type (type);
269 if (klass->nested_in) {
270 mono_type_get_name_recurse (
271 &klass->nested_in->byval_arg, str, TRUE, format);
272 if (format == MONO_TYPE_NAME_FORMAT_IL)
273 g_string_append_c (str, '.');
275 g_string_append_c (str, '+');
276 } else if (*klass->name_space) {
277 g_string_append (str, klass->name_space);
278 g_string_append_c (str, '.');
280 if (format == MONO_TYPE_NAME_FORMAT_IL) {
281 char *s = strchr (klass->name, '`');
282 int len = s ? s - klass->name : strlen (klass->name);
284 g_string_append_len (str, klass->name, len);
286 g_string_append (str, klass->name);
289 if (klass->generic_class) {
290 MonoGenericClass *gclass = klass->generic_class;
291 MonoGenericInst *inst = gclass->context.class_inst;
292 MonoTypeNameFormat nested_format;
295 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
296 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
298 if (format == MONO_TYPE_NAME_FORMAT_IL)
299 g_string_append_c (str, '<');
301 g_string_append_c (str, '[');
302 for (i = 0; i < inst->type_argc; i++) {
303 MonoType *t = inst->type_argv [i];
306 g_string_append_c (str, ',');
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, '[');
310 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
311 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
312 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
313 g_string_append_c (str, ']');
315 if (format == MONO_TYPE_NAME_FORMAT_IL)
316 g_string_append_c (str, '>');
318 g_string_append_c (str, ']');
319 } else if (klass->generic_container &&
320 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
321 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
324 if (format == MONO_TYPE_NAME_FORMAT_IL)
325 g_string_append_c (str, '<');
327 g_string_append_c (str, '[');
328 for (i = 0; i < klass->generic_container->type_argc; i++) {
330 g_string_append_c (str, ',');
331 g_string_append (str, klass->generic_container->type_params [i].name);
333 if (format == MONO_TYPE_NAME_FORMAT_IL)
334 g_string_append_c (str, '>');
336 g_string_append_c (str, ']');
339 mono_type_name_check_byref (type, str);
341 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
342 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
343 _mono_type_get_assembly_name (klass, str);
349 * mono_type_get_name:
351 * @format: the format for the return string.
354 * Returns: the string representation in a number of formats:
356 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
357 * returned in the formatrequired by System.Reflection, this is the
358 * inverse of mono_reflection_parse_type ().
360 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
361 * be used by the IL assembler.
363 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
365 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
368 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
372 result = g_string_new ("");
374 mono_type_get_name_recurse (type, result, FALSE, format);
376 return g_string_free (result, FALSE);
380 * mono_type_get_full_name:
383 * Returns: the string representation for type as required by System.Reflection.
384 * The inverse of mono_reflection_parse_type ().
387 mono_type_get_full_name (MonoClass *class)
389 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
393 * mono_type_get_name:
396 * Returns: the string representation for type as it would be represented in IL code.
399 mono_type_get_name (MonoType *type)
401 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
405 * mono_type_get_underlying_type:
408 * Returns: the MonoType for the underlying integer type if @type
409 * is an enum and byref is false, otherwise the type itself.
412 mono_type_get_underlying_type (MonoType *type)
414 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
415 return type->data.klass->enum_basetype;
416 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
417 return type->data.generic_class->container_class->enum_basetype;
422 * mono_class_is_open_constructed_type:
425 * Returns TRUE if type represents a generics open constructed type
426 * (not all the type parameters required for the instantiation have
430 mono_class_is_open_constructed_type (MonoType *t)
436 case MONO_TYPE_SZARRAY:
437 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
438 case MONO_TYPE_ARRAY:
439 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
441 return mono_class_is_open_constructed_type (t->data.type);
442 case MONO_TYPE_GENERICINST:
443 return t->data.generic_class->context.class_inst->is_open;
450 inflate_generic_type (MonoType *type, MonoGenericContext *context)
452 switch (type->type) {
453 case MONO_TYPE_MVAR: {
455 int num = type->data.generic_param->num;
456 MonoGenericInst *inst = context->method_inst;
457 if (!inst || !inst->type_argv)
459 if (num >= inst->type_argc)
460 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
463 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
464 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
465 * ->byref and ->attrs from @type are propagated to the returned type.
467 nt = mono_metadata_type_dup (NULL, inst->type_argv [num]);
468 nt->byref = type->byref;
469 nt->attrs = type->attrs;
472 case MONO_TYPE_VAR: {
474 int num = type->data.generic_param->num;
475 MonoGenericInst *inst = context->class_inst;
478 if (num >= inst->type_argc)
479 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
480 nt = mono_metadata_type_dup (NULL, inst->type_argv [num]);
481 nt->byref = type->byref;
482 nt->attrs = type->attrs;
485 case MONO_TYPE_SZARRAY: {
486 MonoClass *eclass = type->data.klass;
487 MonoType *nt, *inflated = inflate_generic_type (&eclass->byval_arg, context);
490 nt = mono_metadata_type_dup (NULL, type);
491 nt->data.klass = mono_class_from_mono_type (inflated);
492 mono_metadata_free_type (inflated);
495 case MONO_TYPE_ARRAY: {
496 MonoClass *eclass = type->data.array->eklass;
497 MonoType *nt, *inflated = inflate_generic_type (&eclass->byval_arg, context);
500 nt = mono_metadata_type_dup (NULL, type);
501 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
502 nt->data.array->eklass = mono_class_from_mono_type (inflated);
503 mono_metadata_free_type (inflated);
506 case MONO_TYPE_GENERICINST: {
507 MonoGenericClass *gclass = type->data.generic_class;
508 MonoGenericInst *inst;
510 if (!gclass->context.class_inst->is_open)
513 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
514 if (inst != gclass->context.class_inst)
515 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
517 if (gclass == type->data.generic_class)
520 nt = mono_metadata_type_dup (NULL, type);
521 nt->data.generic_class = gclass;
524 case MONO_TYPE_CLASS:
525 case MONO_TYPE_VALUETYPE: {
526 MonoClass *klass = type->data.klass;
527 MonoGenericContainer *container = klass->generic_container;
528 MonoGenericInst *inst;
529 MonoGenericClass *gclass = NULL;
535 /* We can't use context->class_inst directly, since it can have more elements */
536 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
537 if (inst == container->context.class_inst)
540 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
542 nt = mono_metadata_type_dup (NULL, type);
543 nt->type = MONO_TYPE_GENERICINST;
544 nt->data.generic_class = gclass;
554 mono_generic_class_get_context (MonoGenericClass *gclass)
556 return &gclass->context;
560 mono_class_get_context (MonoClass *class)
562 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
566 * mono_class_inflate_generic_type:
568 * @context: a generics context
570 * Instantiate the generic type @type, using the generics context @context.
572 * Returns: the instantiated type. The returned MonoType is allocated on the heap and is
573 * owned by the caller.
576 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
578 MonoType *inflated = inflate_generic_type (type, context);
581 return mono_metadata_type_dup (NULL, type);
583 mono_stats.inflated_type_count++;
587 static MonoGenericContext
588 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
590 MonoGenericInst *class_inst = NULL;
591 MonoGenericInst *method_inst = NULL;
592 MonoGenericContext res;
594 if (context->class_inst)
595 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
597 if (context->method_inst)
598 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
600 res.class_inst = class_inst;
601 res.method_inst = method_inst;
607 * mono_class_inflate_generic_method:
608 * @method: a generic method
609 * @context: a generics context
611 * Instantiate the generic method @method using the generics context @context.
613 * Returns: the new instantiated method
616 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
618 return mono_class_inflate_generic_method_full (method, NULL, context);
622 * mono_class_inflate_generic_method:
624 * Instantiate method @method with the generic context @context.
625 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
626 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
629 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
632 MonoMethodInflated *iresult, *cached;
633 MonoMethodSignature *sig;
634 MonoGenericContext tmp_context;
636 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
637 while (method->is_inflated) {
638 MonoGenericContext *method_context = mono_method_get_context (method);
639 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
641 tmp_context = inflate_generic_context (method_context, context);
642 context = &tmp_context;
644 if (mono_metadata_generic_context_equal (method_context, context))
647 method = imethod->declaring;
650 if (!method->generic_container && !method->klass->generic_container)
653 mono_stats.inflated_method_count++;
654 iresult = g_new0 (MonoMethodInflated, 1);
655 iresult->context = *context;
656 iresult->declaring = method;
658 if (!context->method_inst && method->generic_container)
659 iresult->context.method_inst = method->generic_container->context.method_inst;
662 cached = mono_method_inflated_lookup (iresult, FALSE);
664 mono_loader_unlock ();
666 return (MonoMethod*)cached;
669 sig = mono_method_signature (method);
671 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
673 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
674 iresult->method.normal.header = NULL;
677 result = (MonoMethod *) iresult;
678 result->is_inflated = 1;
679 result->signature = NULL;
681 if (context->method_inst)
682 result->generic_container = NULL;
684 /* Due to the memcpy above, !context->method_inst => result->generic_container == method->generic_container */
686 if (!klass_hint || !klass_hint->generic_class ||
687 klass_hint->generic_class->container_class != method->klass ||
688 klass_hint->generic_class->context.class_inst != context->class_inst)
691 if (method->klass->generic_container)
692 result->klass = klass_hint;
694 if (!result->klass) {
695 MonoType *inflated = inflate_generic_type (&method->klass->byval_arg, context);
696 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
698 mono_metadata_free_type (inflated);
701 mono_method_inflated_lookup (iresult, TRUE);
702 mono_loader_unlock ();
707 * mono_get_inflated_method:
709 * Obsolete. We keep it around since it's mentioned in the public API.
712 mono_get_inflated_method (MonoMethod *method)
718 mono_method_get_context (MonoMethod *method)
720 MonoMethodInflated *imethod;
721 if (!method->is_inflated)
723 imethod = (MonoMethodInflated *) method;
724 return &imethod->context;
728 * mono_class_find_enum_basetype:
729 * @class: The enum class
731 * Determine the basetype of an enum by iterating through its fields. We do this
732 * in a separate function since it is cheaper than calling mono_class_setup_fields.
735 mono_class_find_enum_basetype (MonoClass *class)
737 MonoImage *m = class->image;
738 const int top = class->field.count;
741 g_assert (class->enumtype);
744 * Fetch all the field information.
746 for (i = 0; i < top; i++){
748 guint32 cols [MONO_FIELD_SIZE];
749 int idx = class->field.first + i;
750 MonoGenericContainer *container = NULL;
753 /* class->field.first and idx points into the fieldptr table */
754 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
755 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
756 mono_metadata_decode_value (sig, &sig);
757 /* FIELD signature == 0x06 */
758 g_assert (*sig == 0x06);
759 if (class->generic_container)
760 container = class->generic_container;
761 else if (class->generic_class) {
762 MonoClass *gklass = class->generic_class->container_class;
764 container = gklass->generic_container;
765 g_assert (container);
767 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
770 if (class->generic_class) {
771 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
772 ftype->attrs = cols [MONO_FIELD_FLAGS];
775 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
783 * mono_class_setup_fields:
784 * @class: The class to initialize
786 * Initializes the class->fields.
787 * LOCKING: Assumes the loader lock is held.
790 mono_class_setup_fields (MonoClass *class)
792 MonoImage *m = class->image;
793 int top = class->field.count;
794 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
795 int i, blittable = TRUE;
796 guint32 real_size = 0;
797 guint32 packing_size = 0;
798 gboolean explicit_size;
799 MonoClassField *field;
800 MonoGenericContainer *container = NULL;
801 MonoClass *gklass = NULL;
803 if (class->size_inited)
806 if (class->generic_class) {
807 MonoClass *gklass = class->generic_class->container_class;
808 mono_class_setup_fields (gklass);
809 top = gklass->field.count;
810 class->field.count = gklass->field.count;
813 class->instance_size = 0;
815 class->sizes.class_size = 0;
818 /* For generic instances, class->parent might not have been initialized */
819 mono_class_init (class->parent);
820 if (!class->parent->size_inited)
821 mono_class_setup_fields (class->parent);
822 class->instance_size += class->parent->instance_size;
823 class->min_align = class->parent->min_align;
824 /* we use |= since it may have been set already */
825 class->has_references |= class->parent->has_references;
826 blittable = class->parent->blittable;
828 class->instance_size = sizeof (MonoObject);
829 class->min_align = 1;
832 /* Get the real size */
833 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
836 g_assert ((packing_size & 0xfffffff0) == 0);
837 class->packing_size = packing_size;
838 real_size += class->instance_size;
842 if (explicit_size && real_size) {
843 class->instance_size = MAX (real_size, class->instance_size);
845 class->size_inited = 1;
846 class->blittable = blittable;
850 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
853 /* Prevent infinite loops if the class references itself */
854 class->size_inited = 1;
856 class->fields = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoClassField) * top);
858 if (class->generic_container) {
859 container = class->generic_container;
860 } else if (class->generic_class) {
861 gklass = class->generic_class->container_class;
862 container = gklass->generic_container;
863 g_assert (container);
865 mono_class_setup_fields (gklass);
869 * Fetch all the field information.
871 for (i = 0; i < top; i++){
872 int idx = class->field.first + i;
873 field = &class->fields [i];
875 field->parent = class;
877 if (class->generic_class) {
878 MonoClassField *gfield = &gklass->fields [i];
879 MonoInflatedField *ifield = g_new0 (MonoInflatedField, 1);
881 ifield->generic_type = gfield->type;
882 field->name = gfield->name;
883 field->generic_info = ifield;
884 field->type = mono_class_inflate_generic_type (gfield->type, mono_class_get_context (class));
885 field->type->attrs = gfield->type->attrs;
886 if (mono_field_is_deleted (field))
888 field->offset = gfield->offset;
889 field->data = gfield->data;
893 guint32 cols [MONO_FIELD_SIZE];
895 /* class->field.first and idx points into the fieldptr table */
896 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
897 /* The name is needed for fieldrefs */
898 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
899 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
900 mono_metadata_decode_value (sig, &sig);
901 /* FIELD signature == 0x06 */
902 g_assert (*sig == 0x06);
903 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
905 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
908 if (mono_field_is_deleted (field))
910 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
912 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
913 field->offset = offset;
914 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
915 g_warning ("%s not initialized correctly (missing field layout info for %s)",
916 class->name, field->name);
919 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
920 mono_metadata_field_info (m, idx, NULL, &rva, NULL);
922 g_warning ("field %s in %s should have RVA data, but hasn't", field->name, class->name);
923 field->data = mono_image_rva_map (class->image, rva);
927 /* Only do these checks if we still think this type is blittable */
928 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
929 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
932 MonoClass *field_class = mono_class_from_mono_type (field->type);
933 if (!field_class || !field_class->blittable)
938 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
939 class->enum_basetype = field->type;
940 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
941 blittable = class->element_class->blittable;
944 /* The def_value of fields is compute lazily during vtable creation */
947 if (class == mono_defaults.string_class)
950 class->blittable = blittable;
952 if (class->enumtype && !class->enum_basetype) {
953 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
956 if (explicit_size && real_size) {
957 class->instance_size = MAX (real_size, class->instance_size);
960 if (class->exception_type)
962 mono_class_layout_fields (class);
966 * mono_class_setup_fields_locking:
967 * @class: The class to initialize
969 * Initializes the class->fields array of fields.
970 * Aquires the loader lock.
973 mono_class_setup_fields_locking (MonoClass *class)
976 mono_class_setup_fields (class);
977 mono_loader_unlock ();
981 * mono_class_has_references:
983 * Returns whenever @klass->has_references is set, initializing it if needed.
984 * Aquires the loader lock.
987 mono_class_has_references (MonoClass *klass)
989 if (klass->init_pending) {
990 /* Be conservative */
993 mono_class_init (klass);
995 return klass->has_references;
999 /* useful until we keep track of gc-references in corlib etc. */
1001 #define IS_GC_REFERENCE(t) FALSE
1003 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1007 * mono_type_get_basic_type_from_generic:
1010 * Returns a closed type corresponding to the possibly open type
1014 mono_type_get_basic_type_from_generic (MonoType *type)
1016 /* When we do generic sharing we let type variables stand for reference types. */
1017 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1018 return &mono_defaults.object_class->byval_arg;
1023 * mono_class_layout_fields:
1026 * Compute the placement of fields inside an object or struct, according to
1027 * the layout rules and set the following fields in @class:
1028 * - has_references (if the class contains instance references firled or structs that contain references)
1029 * - has_static_refs (same, but for static fields)
1030 * - instance_size (size of the object in memory)
1031 * - class_size (size needed for the static fields)
1032 * - size_inited (flag set when the instance_size is set)
1034 * LOCKING: this is supposed to be called with the loader lock held.
1037 mono_class_layout_fields (MonoClass *class)
1040 const int top = class->field.count;
1041 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1042 guint32 pass, passes, real_size;
1043 gboolean gc_aware_layout = FALSE;
1044 MonoClassField *field;
1047 * When we do generic sharing we need to have layout
1048 * information for open generic classes (either with a generic
1049 * context containing type variables or with a generic
1050 * container), so we don't return in that case anymore.
1054 * Enable GC aware auto layout: in this mode, reference
1055 * fields are grouped together inside objects, increasing collector
1057 * Requires that all classes whose layout is known to native code be annotated
1058 * with [StructLayout (LayoutKind.Sequential)]
1059 * Value types have gc_aware_layout disabled by default, as per
1060 * what the default is for other runtimes.
1062 /* corlib is missing [StructLayout] directives in many places */
1063 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1064 if (class->image != mono_defaults.corlib &&
1065 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1066 gc_aware_layout = TRUE;
1067 /* from System.dll, used in metadata/process.h */
1068 if (strcmp (class->name, "ProcessStartInfo") == 0)
1069 gc_aware_layout = FALSE;
1072 /* Compute klass->has_references */
1074 * Process non-static fields first, since static fields might recursively
1075 * refer to the class itself.
1077 for (i = 0; i < top; i++) {
1080 field = &class->fields [i];
1082 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1083 ftype = mono_type_get_underlying_type (field->type);
1084 ftype = mono_type_get_basic_type_from_generic (ftype);
1085 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1086 class->has_references = TRUE;
1090 for (i = 0; i < top; i++) {
1093 field = &class->fields [i];
1095 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1096 ftype = mono_type_get_underlying_type (field->type);
1097 ftype = mono_type_get_basic_type_from_generic (ftype);
1098 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1099 class->has_static_refs = TRUE;
1103 for (i = 0; i < top; i++) {
1106 field = &class->fields [i];
1108 ftype = mono_type_get_underlying_type (field->type);
1109 ftype = mono_type_get_basic_type_from_generic (ftype);
1110 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1111 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1112 class->has_static_refs = TRUE;
1114 class->has_references = TRUE;
1119 * Compute field layout and total size (not considering static fields)
1123 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1124 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1126 if (gc_aware_layout)
1131 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1135 real_size = class->parent->instance_size;
1137 real_size = sizeof (MonoObject);
1139 for (pass = 0; pass < passes; ++pass) {
1140 for (i = 0; i < top; i++){
1145 field = &class->fields [i];
1147 if (mono_field_is_deleted (field))
1149 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1152 ftype = mono_type_get_underlying_type (field->type);
1153 ftype = mono_type_get_basic_type_from_generic (ftype);
1154 if (gc_aware_layout) {
1155 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1164 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1165 (strcmp (field->name, "$PRIVATE$") == 0)) {
1166 /* This field is a hack inserted by MCS to empty structures */
1170 size = mono_type_size (field->type, &align);
1172 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1173 align = class->packing_size ? MIN (class->packing_size, align): align;
1174 /* if the field has managed references, we need to force-align it
1177 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1178 align = MAX (align, sizeof (gpointer));
1180 class->min_align = MAX (align, class->min_align);
1181 field->offset = real_size;
1182 field->offset += align - 1;
1183 field->offset &= ~(align - 1);
1184 real_size = field->offset + size;
1187 class->instance_size = MAX (real_size, class->instance_size);
1189 if (class->instance_size & (class->min_align - 1)) {
1190 class->instance_size += class->min_align - 1;
1191 class->instance_size &= ~(class->min_align - 1);
1195 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1197 for (i = 0; i < top; i++) {
1202 field = &class->fields [i];
1205 * There must be info about all the fields in a type if it
1206 * uses explicit layout.
1209 if (mono_field_is_deleted (field))
1211 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1214 size = mono_type_size (field->type, &align);
1217 * When we get here, field->offset is already set by the
1218 * loader (for either runtime fields or fields loaded from metadata).
1219 * The offset is from the start of the object: this works for both
1220 * classes and valuetypes.
1222 field->offset += sizeof (MonoObject);
1223 ftype = mono_type_get_underlying_type (field->type);
1224 ftype = mono_type_get_basic_type_from_generic (ftype);
1225 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1226 if (field->offset % sizeof (gpointer)) {
1227 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1234 real_size = MAX (real_size, size + field->offset);
1236 class->instance_size = MAX (real_size, class->instance_size);
1240 #if NO_UNALIGNED_ACCESS
1241 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1243 * For small structs, set min_align to at least the struct size, since the
1244 * JIT memset/memcpy code assumes this and generates unaligned accesses
1245 * otherwise. See #78990 for a testcase.
1246 * FIXME: Fix the memset/memcpy code instead.
1248 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1249 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1253 class->size_inited = 1;
1256 * Compute static field layout and size
1258 for (i = 0; i < top; i++){
1262 field = &class->fields [i];
1264 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1266 if (mono_field_is_deleted (field))
1269 size = mono_type_size (field->type, &align);
1270 field->offset = class->sizes.class_size;
1271 field->offset += align - 1;
1272 field->offset &= ~(align - 1);
1273 class->sizes.class_size = field->offset + size;
1278 * mono_class_setup_methods:
1281 * Initializes the 'methods' array in the klass.
1282 * Calling this method should be avoided if possible since it allocates a lot
1283 * of long-living MonoMethod structures.
1284 * Methods belonging to an interface are assigned a sequential slot starting
1288 mono_class_setup_methods (MonoClass *class)
1291 MonoMethod **methods;
1296 mono_loader_lock ();
1298 if (class->methods) {
1299 mono_loader_unlock ();
1303 if (class->generic_class) {
1304 MonoClass *gklass = class->generic_class->container_class;
1306 mono_class_init (gklass);
1307 mono_class_setup_methods (gklass);
1309 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1310 class->method.count = gklass->method.count;
1311 methods = g_new0 (MonoMethod *, class->method.count + 1);
1313 for (i = 0; i < class->method.count; i++) {
1314 methods [i] = mono_class_inflate_generic_method_full (
1315 gklass->methods [i], class, mono_class_get_context (class));
1318 methods = mono_mempool_alloc (class->image->mempool, sizeof (MonoMethod*) * class->method.count);
1319 for (i = 0; i < class->method.count; ++i) {
1320 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1321 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1322 if (class->valuetype && methods [i]->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED && !(methods [i]->flags & MONO_METHOD_ATTR_STATIC))
1323 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1327 if (MONO_CLASS_IS_INTERFACE (class))
1328 for (i = 0; i < class->method.count; ++i)
1329 methods [i]->slot = i;
1331 /* Leave this assignment as the last op in this function */
1332 class->methods = methods;
1334 if (mono_debugger_class_loaded_methods_func)
1335 mono_debugger_class_loaded_methods_func (class);
1337 mono_loader_unlock ();
1342 mono_class_setup_properties (MonoClass *class)
1344 guint startm, endm, i, j;
1345 guint32 cols [MONO_PROPERTY_SIZE];
1346 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1347 MonoProperty *properties;
1350 if (class->properties)
1353 mono_loader_lock ();
1355 if (class->properties) {
1356 mono_loader_unlock ();
1360 if (class->generic_class) {
1361 MonoClass *gklass = class->generic_class->container_class;
1363 class->property = gklass->property;
1365 mono_class_init (gklass);
1366 mono_class_setup_properties (gklass);
1368 properties = g_new0 (MonoProperty, class->property.count + 1);
1370 for (i = 0; i < class->property.count; i++) {
1371 MonoProperty *prop = &properties [i];
1373 *prop = gklass->properties [i];
1376 prop->get = mono_class_inflate_generic_method_full (
1377 prop->get, class, mono_class_get_context (class));
1379 prop->set = mono_class_inflate_generic_method_full (
1380 prop->set, class, mono_class_get_context (class));
1382 prop->parent = class;
1385 class->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1386 class->property.count = last - class->property.first;
1388 if (class->property.count)
1389 mono_class_setup_methods (class);
1391 properties = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoProperty) * class->property.count);
1392 for (i = class->property.first; i < last; ++i) {
1393 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1394 properties [i - class->property.first].parent = class;
1395 properties [i - class->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1396 properties [i - class->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1398 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1399 for (j = startm; j < endm; ++j) {
1402 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1404 if (class->image->uncompressed_metadata)
1405 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1406 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1408 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1410 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1411 case METHOD_SEMANTIC_SETTER:
1412 properties [i - class->property.first].set = method;
1414 case METHOD_SEMANTIC_GETTER:
1415 properties [i - class->property.first].get = method;
1424 /* Leave this assignment as the last op in the function */
1425 class->properties = properties;
1427 mono_loader_unlock ();
1431 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1433 MonoMethod **om, **retval;
1436 for (om = methods, count = 0; *om; ++om, ++count)
1439 retval = g_new0 (MonoMethod*, count + 1);
1441 for (om = methods, count = 0; *om; ++om, ++count)
1442 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1448 mono_class_setup_events (MonoClass *class)
1450 guint startm, endm, i, j;
1451 guint32 cols [MONO_EVENT_SIZE];
1452 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1459 mono_loader_lock ();
1461 if (class->events) {
1462 mono_loader_unlock ();
1466 if (class->generic_class) {
1467 MonoClass *gklass = class->generic_class->container_class;
1468 MonoGenericContext *context;
1470 mono_class_setup_events (gklass);
1471 class->event = gklass->event;
1473 class->events = g_new0 (MonoEvent, class->event.count);
1475 if (class->event.count)
1476 context = mono_class_get_context (class);
1478 for (i = 0; i < class->event.count; i++) {
1479 MonoEvent *event = &class->events [i];
1480 MonoEvent *gevent = &gklass->events [i];
1482 event->parent = class;
1483 event->name = gevent->name;
1484 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1485 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1486 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1487 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1488 event->attrs = gevent->attrs;
1491 mono_loader_unlock ();
1495 class->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1496 class->event.count = last - class->event.first;
1498 if (class->event.count)
1499 mono_class_setup_methods (class);
1501 events = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoEvent) * class->event.count);
1502 for (i = class->event.first; i < last; ++i) {
1503 MonoEvent *event = &events [i - class->event.first];
1505 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1506 event->parent = class;
1507 event->attrs = cols [MONO_EVENT_FLAGS];
1508 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1510 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1511 for (j = startm; j < endm; ++j) {
1514 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1516 if (class->image->uncompressed_metadata)
1517 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1518 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1520 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1522 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1523 case METHOD_SEMANTIC_ADD_ON:
1524 event->add = method;
1526 case METHOD_SEMANTIC_REMOVE_ON:
1527 event->remove = method;
1529 case METHOD_SEMANTIC_FIRE:
1530 event->raise = method;
1532 case METHOD_SEMANTIC_OTHER: {
1535 if (event->other == NULL) {
1536 event->other = g_new0 (MonoMethod*, 2);
1538 while (event->other [n])
1540 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1542 event->other [n] = method;
1543 /* NULL terminated */
1544 event->other [n + 1] = NULL;
1552 /* Leave this assignment as the last op in the function */
1553 class->events = events;
1555 mono_loader_unlock ();
1559 * Global pool of interface IDs, represented as a bitset.
1560 * LOCKING: this is supposed to be accessed with the loader lock held.
1562 static MonoBitSet *global_interface_bitset = NULL;
1565 * mono_unload_interface_ids:
1566 * @bitset: bit set of interface IDs
1568 * When an image is unloaded, the interface IDs associated with
1569 * the image are put back in the global pool of IDs so the numbers
1573 mono_unload_interface_ids (MonoBitSet *bitset)
1575 mono_loader_lock ();
1576 mono_bitset_sub (global_interface_bitset, bitset);
1577 mono_loader_unlock ();
1581 * mono_get_unique_iid:
1584 * Assign a unique integer ID to the interface represented by @class.
1585 * The ID will positive and as small as possible.
1586 * LOCKING: this is supposed to be called with the loader lock held.
1587 * Returns: the new ID.
1590 mono_get_unique_iid (MonoClass *class)
1594 g_assert (MONO_CLASS_IS_INTERFACE (class));
1596 if (!global_interface_bitset) {
1597 global_interface_bitset = mono_bitset_new (128, 0);
1600 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
1602 int old_size = mono_bitset_size (global_interface_bitset);
1603 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
1604 mono_bitset_free (global_interface_bitset);
1605 global_interface_bitset = new_set;
1608 mono_bitset_set (global_interface_bitset, iid);
1609 /* set the bit also in the per-image set */
1610 if (class->image->interface_bitset) {
1611 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
1612 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
1613 mono_bitset_free (class->image->interface_bitset);
1614 class->image->interface_bitset = new_set;
1617 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
1619 mono_bitset_set (class->image->interface_bitset, iid);
1621 if (mono_print_vtable) {
1623 char *type_name = mono_type_full_name (&class->byval_arg);
1624 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
1625 generic_id = class->generic_class->context.class_inst->id;
1626 g_assert (generic_id != 0);
1630 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
1634 g_assert (iid <= 65535);
1639 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
1644 for (i = 0; i < klass->interface_count; i++) {
1645 ic = klass->interfaces [i];
1648 *res = g_ptr_array_new ();
1649 g_ptr_array_add (*res, ic);
1650 mono_class_init (ic);
1652 collect_implemented_interfaces_aux (ic, res);
1657 mono_class_get_implemented_interfaces (MonoClass *klass)
1659 GPtrArray *res = NULL;
1661 collect_implemented_interfaces_aux (klass, &res);
1665 typedef struct _IOffsetInfo IOffsetInfo;
1666 struct _IOffsetInfo {
1670 int data [MONO_ZERO_LEN_ARRAY];
1673 static IOffsetInfo *cached_offset_info = NULL;
1674 static int next_offset_info_size = 128;
1677 cache_interface_offsets (int max_iid, int *data)
1679 IOffsetInfo *cached_info;
1682 for (cached_info = cached_offset_info; cached_info; cached_info = cached_info->next) {
1683 cached = cached_info->data;
1684 while (cached < cached_info->data + cached_info->size && *cached) {
1685 if (*cached == max_iid) {
1686 int i, matched = TRUE;
1688 for (i = 0; i < max_iid; ++i) {
1689 if (cached [i] != data [i]) {
1698 cached += *cached + 1;
1702 /* find a free slot */
1703 for (cached_info = cached_offset_info; cached_info; cached_info = cached_info->next) {
1704 if (cached_info->size - cached_info->next_free >= max_iid + 1) {
1705 cached = &cached_info->data [cached_info->next_free];
1706 *cached++ = max_iid;
1707 memcpy (cached, data, max_iid * sizeof (int));
1708 cached_info->next_free += max_iid + 1;
1712 /* allocate a new chunk */
1713 if (max_iid + 1 < next_offset_info_size) {
1714 new_size = next_offset_info_size;
1715 if (next_offset_info_size < 4096)
1716 next_offset_info_size += next_offset_info_size >> 2;
1718 new_size = max_iid + 1;
1720 cached_info = g_malloc0 (sizeof (IOffsetInfo) + sizeof (int) * new_size);
1721 cached_info->size = new_size;
1722 /*g_print ("allocated %d offset entries at %p (total: %d)\n", new_size, cached_info->data, offset_info_total_size);*/
1723 cached = &cached_info->data [0];
1724 *cached++ = max_iid;
1725 memcpy (cached, data, max_iid * sizeof (int));
1726 cached_info->next_free += max_iid + 1;
1727 cached_info->next = cached_offset_info;
1728 cached_offset_info = cached_info;
1733 compare_interface_ids (const void *p_key, const void *p_element) {
1734 const MonoClass *key = p_key;
1735 const MonoClass *element = *(MonoClass**) p_element;
1737 return (key->interface_id - element->interface_id);
1741 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
1742 MonoClass **result = bsearch (
1744 klass->interfaces_packed,
1745 klass->interface_offsets_count,
1746 sizeof (MonoClass *),
1747 compare_interface_ids);
1749 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
1756 print_implemented_interfaces (MonoClass *klass) {
1757 GPtrArray *ifaces = NULL;
1759 int ancestor_level = 0;
1761 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
1762 for (i = 0; i < klass->interface_offsets_count; i++)
1763 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
1764 klass->interfaces_packed [i]->interface_id,
1765 klass->interface_offsets_packed [i],
1766 klass->interfaces_packed [i]->method.count,
1767 klass->interfaces_packed [i]->name_space,
1768 klass->interfaces_packed [i]->name );
1769 printf ("Interface flags: ");
1770 for (i = 0; i <= klass->max_interface_id; i++)
1771 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
1772 printf ("(%d,T)", i);
1774 printf ("(%d,F)", i);
1776 printf ("Dump interface flags:");
1777 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
1778 printf (" %02X", klass->interface_bitmap [i]);
1780 while (klass != NULL) {
1781 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
1782 ifaces = mono_class_get_implemented_interfaces (klass);
1784 for (i = 0; i < ifaces->len; i++) {
1785 MonoClass *ic = g_ptr_array_index (ifaces, i);
1786 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
1787 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
1789 mono_class_interface_offset (klass, ic),
1794 g_ptr_array_free (ifaces, TRUE);
1797 klass = klass->parent;
1801 /* this won't be needed once bug #325495 is completely fixed
1802 * though we'll need something similar to know which interfaces to allow
1803 * in arrays when they'll be lazyly created
1806 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
1808 MonoClass *eclass = class->element_class;
1809 static MonoClass* generic_icollection_class = NULL;
1810 static MonoClass* generic_ienumerable_class = NULL;
1811 static MonoClass* generic_ienumerator_class = NULL;
1812 MonoClass *fclass = NULL;
1813 MonoClass **interfaces = NULL;
1814 int i, interface_count, real_count;
1816 gboolean internal_enumerator;
1817 gboolean eclass_is_valuetype;
1819 if (!mono_defaults.generic_ilist_class) {
1823 internal_enumerator = FALSE;
1824 eclass_is_valuetype = FALSE;
1825 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
1826 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
1828 * For a Enumerator<T[]> we need to get the list of interfaces for T.
1830 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
1831 eclass = eclass->element_class;
1832 internal_enumerator = TRUE;
1833 *is_enumerator = TRUE;
1841 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
1842 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
1844 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
1846 if (!generic_icollection_class) {
1847 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
1848 "System.Collections.Generic", "ICollection`1");
1849 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
1850 "System.Collections.Generic", "IEnumerable`1");
1851 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
1852 "System.Collections.Generic", "IEnumerator`1");
1856 * Arrays in 2.0 need to implement a number of generic interfaces
1857 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
1858 * on the element class). We collect the types needed to build the
1859 * instantiations in interfaces at intervals of 3, because 3 are
1860 * the generic interfaces needed to implement.
1862 if (eclass->valuetype) {
1863 if (eclass == mono_defaults.int16_class)
1864 fclass = mono_defaults.uint16_class;
1865 else if (eclass == mono_defaults.uint16_class)
1866 fclass = mono_defaults.int16_class;
1867 else if (eclass == mono_defaults.int32_class)
1868 fclass = mono_defaults.uint32_class;
1869 else if (eclass == mono_defaults.uint32_class)
1870 fclass = mono_defaults.int32_class;
1871 else if (eclass == mono_defaults.int64_class)
1872 fclass = mono_defaults.uint64_class;
1873 else if (eclass == mono_defaults.uint64_class)
1874 fclass = mono_defaults.int64_class;
1875 else if (eclass == mono_defaults.byte_class)
1876 fclass = mono_defaults.sbyte_class;
1877 else if (eclass == mono_defaults.sbyte_class)
1878 fclass = mono_defaults.byte_class;
1880 /* No additional interfaces for other value types */
1885 /* IList, ICollection, IEnumerable */
1886 real_count = interface_count = 3;
1887 interfaces = g_malloc0 (sizeof (MonoClass*) * interface_count);
1888 interfaces [0] = fclass;
1889 eclass_is_valuetype = TRUE;
1892 int idepth = eclass->idepth;
1893 if (!internal_enumerator)
1895 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
1896 /* we add object for interfaces and the supertypes for the other
1897 * types. The last of the supertypes is the element class itself which we
1898 * already created the explicit interfaces for (so we include it for IEnumerator
1899 * and exclude it for arrays).
1901 if (MONO_CLASS_IS_INTERFACE (eclass))
1904 interface_count += idepth;
1905 /* IList, ICollection, IEnumerable */
1906 interface_count *= 3;
1907 real_count = interface_count;
1908 if (internal_enumerator)
1909 real_count += idepth + eclass->interface_offsets_count;
1910 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
1911 if (MONO_CLASS_IS_INTERFACE (eclass)) {
1912 interfaces [0] = mono_defaults.object_class;
1916 for (i = 0; i < idepth; i++) {
1917 mono_class_init (eclass->supertypes [i]);
1918 interfaces [j] = eclass->supertypes [i];
1922 if (all_interfaces) {
1923 for (i = 0; i < eclass->interface_offsets_count; i++) {
1924 interfaces [j] = eclass->interfaces_packed [i];
1928 for (i = 0; i < eclass->interface_count; i++) {
1929 interfaces [j] = eclass->interfaces [i];
1935 /* instantiate the generic interfaces */
1936 for (i = 0; i < interface_count; i += 3) {
1938 MonoClass *iface = interfaces [i];
1940 args [0] = &iface->byval_arg;
1941 interfaces [i] = mono_class_bind_generic_parameters (
1942 mono_defaults.generic_ilist_class, 1, args, FALSE);
1943 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));
1944 args [0] = &iface->byval_arg;
1945 interfaces [i + 1] = mono_class_bind_generic_parameters (
1946 generic_icollection_class, 1, args, FALSE);
1947 args [0] = &iface->byval_arg;
1948 interfaces [i + 2] = mono_class_bind_generic_parameters (
1949 generic_ienumerable_class, 1, args, FALSE);
1950 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 1]->byval_arg, 0));
1951 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 2]->byval_arg, 0));
1953 if (internal_enumerator) {
1955 /* instantiate IEnumerator<iface> */
1956 for (i = 0; i < interface_count; i++) {
1958 MonoClass *iface = interfaces [i];
1960 args [0] = &iface->byval_arg;
1961 interfaces [i] = mono_class_bind_generic_parameters (
1962 generic_ienumerator_class, 1, args, FALSE);
1963 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
1965 if (!eclass_is_valuetype) {
1966 j = interface_count;
1967 for (i = 0; i < eclass->idepth; i++) {
1969 args [0] = &eclass->supertypes [i]->byval_arg;
1970 interfaces [j] = mono_class_bind_generic_parameters (
1971 generic_ienumerator_class, 1, args, FALSE);
1972 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
1975 for (i = 0; i < eclass->interface_offsets_count; i++) {
1976 MonoClass *iface = eclass->interfaces_packed [i];
1978 args [0] = &iface->byval_arg;
1979 interfaces [j] = mono_class_bind_generic_parameters (
1980 generic_ienumerator_class, 1, args, FALSE);
1981 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
1991 * LOCKING: this is supposed to be called with the loader lock held.
1994 setup_interface_offsets (MonoClass *class, int cur_slot)
1998 MonoClass **interfaces_full;
1999 int *interface_offsets_full;
2001 int interface_offsets_count;
2002 MonoClass **array_interfaces;
2003 int num_array_interfaces;
2004 int is_enumerator = FALSE;
2007 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2008 * implicit innterfaces have the property that they are assigned the same slot in the vtables
2009 * for compatible interfaces
2011 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2013 /* compute maximum number of slots and maximum interface id */
2015 for (k = class; k ; k = k->parent) {
2016 for (i = 0; i < k->interface_count; i++) {
2017 ic = k->interfaces [i];
2020 mono_class_init (ic);
2022 if (max_iid < ic->interface_id)
2023 max_iid = ic->interface_id;
2025 ifaces = mono_class_get_implemented_interfaces (k);
2027 for (i = 0; i < ifaces->len; ++i) {
2028 ic = g_ptr_array_index (ifaces, i);
2029 if (max_iid < ic->interface_id)
2030 max_iid = ic->interface_id;
2032 g_ptr_array_free (ifaces, TRUE);
2035 for (i = 0; i < num_array_interfaces; ++i) {
2036 ic = array_interfaces [i];
2037 mono_class_init (ic);
2038 if (max_iid < ic->interface_id)
2039 max_iid = ic->interface_id;
2042 if (MONO_CLASS_IS_INTERFACE (class)) {
2043 if (max_iid < class->interface_id)
2044 max_iid = class->interface_id;
2046 class->max_interface_id = max_iid;
2047 /* compute vtable offset for interfaces */
2048 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2049 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2051 for (i = 0; i <= max_iid; i++) {
2052 interfaces_full [i] = NULL;
2053 interface_offsets_full [i] = -1;
2056 ifaces = mono_class_get_implemented_interfaces (class);
2058 for (i = 0; i < ifaces->len; ++i) {
2059 ic = g_ptr_array_index (ifaces, i);
2060 interfaces_full [ic->interface_id] = ic;
2061 interface_offsets_full [ic->interface_id] = cur_slot;
2062 cur_slot += ic->method.count;
2064 g_ptr_array_free (ifaces, TRUE);
2067 for (k = class->parent; k ; k = k->parent) {
2068 ifaces = mono_class_get_implemented_interfaces (k);
2070 for (i = 0; i < ifaces->len; ++i) {
2071 ic = g_ptr_array_index (ifaces, i);
2073 if (interface_offsets_full [ic->interface_id] == -1) {
2074 int io = mono_class_interface_offset (k, ic);
2078 interfaces_full [ic->interface_id] = ic;
2079 interface_offsets_full [ic->interface_id] = io;
2082 g_ptr_array_free (ifaces, TRUE);
2086 if (MONO_CLASS_IS_INTERFACE (class)) {
2087 interfaces_full [class->interface_id] = class;
2088 interface_offsets_full [class->interface_id] = cur_slot;
2091 if (num_array_interfaces) {
2092 if (is_enumerator) {
2093 int ienumerator_offset;
2094 g_assert (strcmp (class->interfaces [0]->name, "IEnumerator`1") == 0);
2095 ienumerator_offset = interface_offsets_full [class->interfaces [0]->interface_id];
2096 for (i = 0; i < num_array_interfaces; ++i) {
2097 ic = array_interfaces [i];
2098 interfaces_full [ic->interface_id] = ic;
2099 if (strcmp (ic->name, "IEnumerator`1") == 0)
2100 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2102 g_assert_not_reached ();
2103 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, interface_offsets_full [ic->interface_id], class->interfaces [0]->name);*/
2106 int ilist_offset, icollection_offset, ienumerable_offset;
2107 g_assert (strcmp (class->interfaces [0]->name, "IList`1") == 0);
2108 g_assert (strcmp (class->interfaces [0]->interfaces [0]->name, "ICollection`1") == 0);
2109 g_assert (strcmp (class->interfaces [0]->interfaces [1]->name, "IEnumerable`1") == 0);
2110 ilist_offset = interface_offsets_full [class->interfaces [0]->interface_id];
2111 icollection_offset = interface_offsets_full [class->interfaces [0]->interfaces [0]->interface_id];
2112 ienumerable_offset = interface_offsets_full [class->interfaces [0]->interfaces [1]->interface_id];
2113 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2114 for (i = 0; i < num_array_interfaces; ++i) {
2115 ic = array_interfaces [i];
2116 interfaces_full [ic->interface_id] = ic;
2117 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2118 interface_offsets_full [ic->interface_id] = ilist_offset;
2119 else if (strcmp (ic->name, "ICollection`1") == 0)
2120 interface_offsets_full [ic->interface_id] = icollection_offset;
2121 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2122 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2124 g_assert_not_reached ();
2125 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, interface_offsets_full [ic->interface_id], class->interfaces [0]->name);*/
2130 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2131 if (interface_offsets_full [i] != -1) {
2132 interface_offsets_count ++;
2135 class->interface_offsets_count = interface_offsets_count;
2136 class->interfaces_packed = mono_mempool_alloc (class->image->mempool, sizeof (MonoClass*) * interface_offsets_count);
2137 class->interface_offsets_packed = mono_mempool_alloc (class->image->mempool, sizeof (int) * interface_offsets_count);
2138 class->interface_bitmap = mono_mempool_alloc0 (class->image->mempool, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2139 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2140 if (interface_offsets_full [i] != -1) {
2141 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2142 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2143 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2144 /*if (num_array_interfaces)
2145 g_print ("type %s has %s offset at %d\n", mono_type_get_name_full (&class->byval_arg, 0), mono_type_get_name_full (&interfaces_full [i]->byval_arg, 0), interface_offsets_full [i]);*/
2146 interface_offsets_count ++;
2150 g_free (interfaces_full);
2151 g_free (interface_offsets_full);
2152 g_free (array_interfaces);
2154 //printf ("JUST DONE: ");
2155 //print_implemented_interfaces (class);
2161 * Setup interface offsets for interfaces. Used by Ref.Emit.
2164 mono_class_setup_interface_offsets (MonoClass *class)
2166 mono_loader_lock ();
2168 setup_interface_offsets (class, 0);
2170 mono_loader_unlock ();
2174 mono_class_setup_vtable (MonoClass *class)
2176 MonoMethod **overrides;
2177 MonoGenericContext *context;
2186 mono_class_setup_methods (class);
2188 if (MONO_CLASS_IS_INTERFACE (class))
2191 mono_loader_lock ();
2193 if (class->vtable) {
2194 mono_loader_unlock ();
2198 mono_stats.generic_vtable_count ++;
2200 if (class->generic_class) {
2201 context = mono_class_get_context (class);
2202 type_token = class->generic_class->container_class->type_token;
2204 context = (MonoGenericContext *) class->generic_container;
2205 type_token = class->type_token;
2208 if (class->image->dynamic) {
2209 if (class->generic_class) {
2210 MonoClass *gklass = class->generic_class->container_class;
2212 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2213 for (i = 0; i < onum; ++i) {
2214 MonoMethod *override = overrides [(i * 2) + 1];
2215 MonoMethod *inflated = NULL;
2218 for (j = 0; j < class->method.count; ++j) {
2219 if (gklass->methods [j] == override) {
2220 inflated = class->methods [j];
2224 g_assert (inflated);
2226 overrides [(i * 2) + 1] = inflated;
2229 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2232 /* The following call fails if there are missing methods in the type */
2233 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2237 mono_class_setup_vtable_general (class, overrides, onum);
2241 mono_loader_unlock ();
2247 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2249 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2250 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2252 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL) {
2253 class->exception_type = MONO_EXCEPTION_TYPE_LOAD;
2254 class->exception_data = NULL;
2259 static int __use_new_interface_vtable_code = -1;
2261 use_new_interface_vtable_code (void) {
2262 if (__use_new_interface_vtable_code == -1) {
2263 char *env_var = getenv ("MONO_USE_NEW_INTERFACE_VTABLE_CODE");
2264 if (env_var == NULL) {
2265 __use_new_interface_vtable_code = TRUE;
2267 if ((strcmp (env_var, "0") == 0) || (strcmp (env_var, "false") == 0) || (strcmp (env_var, "FALSE") == 0)) {
2268 __use_new_interface_vtable_code = FALSE;
2270 __use_new_interface_vtable_code = TRUE;
2274 return __use_new_interface_vtable_code;
2278 #define DEBUG_INTERFACE_VTABLE_CODE 0
2279 #define TRACE_INTERFACE_VTABLE_CODE 0
2281 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2282 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2286 #define DEBUG_INTERFACE_VTABLE(stmt)
2289 #if TRACE_INTERFACE_VTABLE_CODE
2290 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2294 #define TRACE_INTERFACE_VTABLE(stmt)
2298 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2300 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2304 GString *res = g_string_new ("");
2306 g_string_append_c (res, '(');
2307 for (i = 0; i < sig->param_count; ++i) {
2309 g_string_append_c (res, ',');
2310 mono_type_get_desc (res, sig->params [i], include_namespace);
2312 g_string_append (res, ")=>");
2313 if (sig->ret != NULL) {
2314 mono_type_get_desc (res, sig->ret, include_namespace);
2316 g_string_append (res, "NULL");
2319 g_string_free (res, FALSE);
2323 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2324 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2325 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2326 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2334 check_interface_method_override (MonoClass *class, MonoMethod *im, MonoMethod *cm, gboolean require_newslot, gboolean interface_is_explicitly_implemented_by_class, gboolean slot_is_empty, gboolean security_enabled) {
2335 if (strcmp (im->name, cm->name) == 0) {
2336 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2337 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2340 if (! slot_is_empty) {
2341 if (require_newslot) {
2342 if (! interface_is_explicitly_implemented_by_class) {
2343 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2346 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2347 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2351 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2354 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2355 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2356 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2357 TRACE_INTERFACE_VTABLE (printf ("]"));
2360 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2361 /* CAS - SecurityAction.InheritanceDemand on interface */
2362 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2363 mono_secman_inheritancedemand_method (cm, im);
2366 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2367 check_core_clr_override_method (class, cm, im);
2368 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2371 MonoClass *ic = im->klass;
2372 const char *ic_name_space = ic->name_space;
2373 const char *ic_name = ic->name;
2376 if (! require_newslot) {
2377 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2380 if (cm->klass->rank == 0) {
2381 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2384 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2385 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2386 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2387 TRACE_INTERFACE_VTABLE (printf ("]"));
2390 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2391 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2394 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2395 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2398 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2399 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2403 subname = strstr (cm->name, ic_name_space);
2404 if (subname != cm->name) {
2405 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2408 subname += strlen (ic_name_space);
2409 if (subname [0] != '.') {
2410 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2414 if (strstr (subname, ic_name) != subname) {
2415 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2418 subname += strlen (ic_name);
2419 if (subname [0] != '.') {
2420 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2424 if (strcmp (subname, im->name) != 0) {
2425 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2429 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2430 /* CAS - SecurityAction.InheritanceDemand on interface */
2431 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2432 mono_secman_inheritancedemand_method (cm, im);
2435 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2436 check_core_clr_override_method (class, cm, im);
2438 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2443 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2445 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2446 MonoMethod *method = key;
2447 MonoMethod *override = value;
2448 MonoClass *method_class = mono_method_get_class (method);
2449 MonoClass *override_class = mono_method_get_class (override);
2451 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2452 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2453 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2456 print_overrides (GHashTable *override_map, const char *message) {
2458 printf ("Override map \"%s\" START:\n", message);
2459 g_hash_table_foreach (override_map, foreach_override, NULL);
2460 printf ("Override map \"%s\" END.\n", message);
2462 printf ("Override map \"%s\" EMPTY.\n", message);
2466 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2467 char *full_name = mono_type_full_name (&class->byval_arg);
2471 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2473 if (print_interfaces) {
2474 print_implemented_interfaces (class);
2475 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2478 if (class->parent) {
2479 parent_size = class->parent->vtable_size;
2483 for (i = 0; i < size; ++i) {
2484 MonoMethod *cm = vtable [i];
2486 char *cm_name = mono_method_full_name (cm, TRUE);
2487 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2488 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2498 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
2500 char *method_signature;
2502 for (index = 0; index < onum; ++index) {
2503 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
2504 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
2506 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
2507 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2508 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
2509 g_free (method_signature);
2510 for (index = 0; index < class->method.count; ++index) {
2511 MonoMethod *cm = class->methods [index];
2512 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2514 printf ("METHOD %s(%s)\n", cm->name, method_signature);
2515 g_free (method_signature);
2520 * LOCKING: this is supposed to be called with the loader lock held.
2523 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
2526 MonoMethod **vtable;
2527 int i, max_vtsize = 0, max_iid, cur_slot = 0;
2528 GPtrArray *ifaces, *pifaces = NULL;
2529 GHashTable *override_map = NULL;
2530 gboolean security_enabled = mono_is_security_manager_active ();
2531 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
2532 int first_non_interface_slot;
2538 ifaces = mono_class_get_implemented_interfaces (class);
2540 for (i = 0; i < ifaces->len; i++) {
2541 MonoClass *ic = g_ptr_array_index (ifaces, i);
2542 max_vtsize += ic->method.count;
2544 g_ptr_array_free (ifaces, TRUE);
2548 if (class->parent) {
2549 mono_class_init (class->parent);
2550 mono_class_setup_vtable (class->parent);
2551 max_vtsize += class->parent->vtable_size;
2552 cur_slot = class->parent->vtable_size;
2555 max_vtsize += class->method.count;
2557 vtable = alloca (sizeof (gpointer) * max_vtsize);
2558 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
2560 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
2562 cur_slot = setup_interface_offsets (class, cur_slot);
2563 max_iid = class->max_interface_id;
2564 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
2566 if (use_new_interface_vtable_code ()) {
2567 if (class->parent && class->parent->vtable_size) {
2568 MonoClass *parent = class->parent;
2571 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
2573 // Also inherit parent interface vtables, just as a starting point.
2574 // This is needed otherwise bug-77127.exe fails when the property methods
2575 // have different names in the iterface and the class, because for child
2576 // classes the ".override" information is not used anymore.
2577 for (i = 0; i < parent->interface_offsets_count; i++) {
2578 MonoClass *parent_interface = parent->interfaces_packed [i];
2579 int interface_offset = mono_class_interface_offset (class, parent_interface);
2581 if (interface_offset >= parent->vtable_size) {
2582 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
2585 mono_class_setup_methods (parent_interface);
2586 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
2587 for (j = 0; j < parent_interface->method.count; j++) {
2588 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
2589 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
2590 parent_interface_offset + j, parent_interface_offset, j,
2591 interface_offset + j, interface_offset, j));
2598 if (class->parent && class->parent->vtable_size)
2599 memcpy (vtable, class->parent->vtable, sizeof (gpointer) * class->parent->vtable_size);
2602 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
2603 /* override interface methods */
2604 for (i = 0; i < onum; i++) {
2605 MonoMethod *decl = overrides [i*2];
2606 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
2608 mono_class_setup_methods (decl->klass);
2609 g_assert (decl->slot != -1);
2610 dslot = decl->slot + mono_class_interface_offset (class, decl->klass);
2611 vtable [dslot] = overrides [i*2 + 1];
2612 vtable [dslot]->slot = dslot;
2614 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
2616 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
2618 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2619 check_core_clr_override_method (class, vtable [dslot], decl);
2622 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
2623 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
2625 if (use_new_interface_vtable_code ()) {
2626 // Loop on all implemented interfaces...
2627 for (i = 0; i < class->interface_offsets_count; i++) {
2628 MonoClass *parent = class->parent;
2630 gboolean interface_is_explicitly_implemented_by_class;
2633 ic = class->interfaces_packed [i];
2634 ic_offset = mono_class_interface_offset (class, ic);
2636 mono_class_setup_methods (ic);
2638 // Check if this interface is explicitly implemented (instead of just inherited)
2639 if (parent != NULL) {
2640 int implemented_interfaces_index;
2641 interface_is_explicitly_implemented_by_class = FALSE;
2642 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
2643 if (ic == class->interfaces [implemented_interfaces_index]) {
2644 interface_is_explicitly_implemented_by_class = TRUE;
2649 interface_is_explicitly_implemented_by_class = TRUE;
2652 // Loop on all interface methods...
2653 for (im_index = 0; im_index < ic->method.count; im_index++) {
2654 MonoMethod *im = ic->methods [im_index];
2655 int im_slot = ic_offset + im->slot;
2656 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
2658 // If there is an explicit implementation, just use it right away,
2659 // otherwise look for a matching method
2660 if (override_im == NULL) {
2663 // First look for a suitable method among the class methods
2664 for (cm_index = 0; cm_index < class->method.count; cm_index++) {
2665 MonoMethod *cm = class->methods [cm_index];
2667 TRACE_INTERFACE_VTABLE (printf (" For slot %d ('%s'.'%s':'%s'), trying method '%s'.'%s':'%s'... [EXPLICIT IMPLEMENTATION = %d][SLOT IS NULL = %d]", im_slot, ic->name_space, ic->name, im->name, cm->klass->name_space, cm->klass->name, cm->name, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL)));
2668 if ((cm->flags & METHOD_ATTRIBUTE_VIRTUAL) && check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
2669 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
2670 vtable [im_slot] = cm;
2671 /* Why do we need this? */
2676 TRACE_INTERFACE_VTABLE (printf ("\n"));
2679 // If the slot is still empty, look in all the inherited virtual methods...
2680 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
2681 MonoClass *parent = class->parent;
2682 // Reverse order, so that last added methods are preferred
2683 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
2684 MonoMethod *cm = parent->vtable [cm_index];
2686 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf (" For slot %d ('%s'.'%s':'%s'), trying (ancestor) method '%s'.'%s':'%s'... ", im_slot, ic->name_space, ic->name, im->name, cm->klass->name_space, cm->klass->name, cm->name));
2687 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
2688 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
2689 vtable [im_slot] = cm;
2690 /* Why do we need this? */
2696 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
2700 g_assert (vtable [im_slot] == override_im);
2705 // If the class is not abstract, check that all its interface slots are full.
2706 // The check is done here and not directly at the end of the loop above because
2707 // it can happen (for injected generic array interfaces) that the same slot is
2708 // processed multiple times (those interfaces have overlapping slots), and it
2709 // will not always be the first pass the one that fills the slot.
2710 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
2711 for (i = 0; i < class->interface_offsets_count; i++) {
2715 ic = class->interfaces_packed [i];
2716 ic_offset = mono_class_interface_offset (class, ic);
2718 for (im_index = 0; im_index < ic->method.count; im_index++) {
2719 MonoMethod *im = ic->methods [im_index];
2720 int im_slot = ic_offset + im->slot;
2722 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
2723 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
2724 if (vtable [im_slot] == NULL) {
2725 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
2726 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2728 g_hash_table_destroy (override_map);
2735 for (k = class; k ; k = k->parent) {
2738 ifaces = mono_class_get_implemented_interfaces (k);
2740 nifaces = ifaces->len;
2741 if (k->generic_class) {
2742 pifaces = mono_class_get_implemented_interfaces (
2743 k->generic_class->container_class);
2744 g_assert (pifaces && (pifaces->len == nifaces));
2747 for (i = 0; i < nifaces; i++) {
2748 MonoClass *pic = NULL;
2751 ic = g_ptr_array_index (ifaces, i);
2753 pic = g_ptr_array_index (pifaces, i);
2754 g_assert (ic->interface_id <= k->max_interface_id);
2755 io = mono_class_interface_offset (k, ic);
2758 g_assert (io <= max_vtsize);
2761 mono_class_setup_methods (ic);
2762 for (l = 0; l < ic->method.count; l++) {
2763 MonoMethod *im = ic->methods [l];
2765 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
2768 for (j = 0; j < class->method.count; ++j) {
2769 MonoMethod *cm = class->methods [j];
2770 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
2771 !((cm->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == METHOD_ATTRIBUTE_PUBLIC) ||
2772 !(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT))
2774 if (!strcmp(cm->name, im->name) &&
2775 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2777 /* CAS - SecurityAction.InheritanceDemand on interface */
2778 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2779 mono_secman_inheritancedemand_method (cm, im);
2782 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2783 check_core_clr_override_method (class, cm, im);
2785 g_assert (io + l <= max_vtsize);
2786 vtable [io + l] = cm;
2787 TRACE_INTERFACE_VTABLE (printf (" [NOA] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
2788 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2789 TRACE_INTERFACE_VTABLE (printf ("\n"));
2794 /* already implemented */
2795 if (io >= k->vtable_size)
2799 // Override methods with the same fully qualified name
2800 for (l = 0; l < ic->method.count; l++) {
2801 MonoMethod *im = ic->methods [l];
2802 char *qname, *fqname, *cname, *the_cname;
2805 if (vtable [io + l])
2809 the_cname = mono_type_get_name_full (&pic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
2813 cname = (char*)ic->name;
2816 qname = g_strconcat (cname, ".", im->name, NULL);
2817 if (ic->name_space && ic->name_space [0])
2818 fqname = g_strconcat (ic->name_space, ".", cname, ".", im->name, NULL);
2822 for (k1 = class; k1; k1 = k1->parent) {
2823 for (j = 0; j < k1->method.count; ++j) {
2824 MonoMethod *cm = k1->methods [j];
2826 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2829 if (((fqname && !strcmp (cm->name, fqname)) || !strcmp (cm->name, qname)) &&
2830 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im)) &&
2831 ((vtable [io + l] == NULL) || mono_class_is_subclass_of (cm->klass, vtable [io + l]->klass, FALSE))) {
2833 /* CAS - SecurityAction.InheritanceDemand on interface */
2834 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2835 mono_secman_inheritancedemand_method (cm, im);
2838 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2839 check_core_clr_override_method (class, cm, im);
2841 g_assert (io + l <= max_vtsize);
2842 vtable [io + l] = cm;
2843 TRACE_INTERFACE_VTABLE (printf (" [FQN] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
2844 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2845 TRACE_INTERFACE_VTABLE (printf ("\n"));
2855 // Override methods with the same name
2856 for (l = 0; l < ic->method.count; l++) {
2857 MonoMethod *im = ic->methods [l];
2860 g_assert (io + l <= max_vtsize);
2862 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
2865 for (k1 = class; k1; k1 = k1->parent) {
2866 for (j = 0; j < k1->method.count; ++j) {
2867 MonoMethod *cm = k1->methods [j];
2869 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
2870 !(cm->flags & METHOD_ATTRIBUTE_PUBLIC))
2873 if (!strcmp(cm->name, im->name) &&
2874 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2876 /* CAS - SecurityAction.InheritanceDemand on interface */
2877 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2878 mono_secman_inheritancedemand_method (cm, im);
2881 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2882 check_core_clr_override_method (class, cm, im);
2884 g_assert (io + l <= max_vtsize);
2885 vtable [io + l] = cm;
2886 TRACE_INTERFACE_VTABLE (printf (" [SQN] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
2887 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2888 TRACE_INTERFACE_VTABLE (printf ("\n"));
2893 g_assert (io + l <= max_vtsize);
2894 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
2899 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
2900 for (l = 0; l < ic->method.count; l++) {
2902 MonoMethod *im = ic->methods [l];
2903 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2905 g_assert (io + l <= max_vtsize);
2908 * If one of our parents already implements this interface
2909 * we can inherit the implementation.
2911 if (!(vtable [io + l])) {
2912 MonoClass *parent = class->parent;
2914 for (; parent; parent = parent->parent) {
2915 if (MONO_CLASS_IMPLEMENTS_INTERFACE (parent, ic->interface_id) &&
2917 vtable [io + l] = parent->vtable [mono_class_interface_offset (parent, ic) + l];
2918 TRACE_INTERFACE_VTABLE (printf (" [INH] Filling slot %d (%d+%d) with method '%s'.'%s':'%s'\n", io + l, io, l, vtable [io + l]->klass->name_space, vtable [io + l]->klass->name, vtable [io + l]->name));
2923 if (!(vtable [io + l])) {
2924 for (j = 0; j < onum; ++j) {
2925 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", io+l, overrides [j*2+1]->name,
2926 overrides [j*2+1]->slot, overrides [j*2]->name, overrides [j*2]->slot);
2928 msig = mono_signature_get_desc (mono_method_signature (im), FALSE);
2929 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2930 mono_type_get_name (&ic->byval_arg), im->name, msig, class->name_space, class->name);
2932 for (j = 0; j < class->method.count; ++j) {
2933 MonoMethod *cm = class->methods [j];
2934 msig = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2936 printf ("METHOD %s(%s)\n", cm->name, msig);
2940 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2943 g_ptr_array_free (ifaces, TRUE);
2945 g_hash_table_destroy (override_map);
2952 for (l = 0; l < ic->method.count; l++) {
2953 MonoMethod *im = vtable [io + l];
2956 g_assert (io + l <= max_vtsize);
2958 /* FIXME: why do we need this ? */
2960 /* g_assert_not_reached (); */
2966 g_ptr_array_free (ifaces, TRUE);
2970 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
2971 for (i = 0; i < class->method.count; ++i) {
2974 cm = class->methods [i];
2977 * Non-virtual method have no place in the vtable.
2978 * This also catches static methods (since they are not virtual).
2980 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2984 * If the method is REUSE_SLOT, we must check in the
2985 * base class for a method to override.
2987 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2989 for (k = class->parent; k ; k = k->parent) {
2991 for (j = 0; j < k->method.count; ++j) {
2992 MonoMethod *m1 = k->methods [j];
2993 MonoMethodSignature *cmsig, *m1sig;
2995 if (!(m1->flags & METHOD_ATTRIBUTE_VIRTUAL))
2998 cmsig = mono_method_signature (cm);
2999 m1sig = mono_method_signature (m1);
3001 if (!cmsig || !m1sig) {
3002 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3006 if (!strcmp(cm->name, m1->name) &&
3007 mono_metadata_signature_equal (cmsig, m1sig)) {
3009 /* CAS - SecurityAction.InheritanceDemand */
3010 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3011 mono_secman_inheritancedemand_method (cm, m1);
3014 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3015 check_core_clr_override_method (class, cm, m1);
3017 slot = k->methods [j]->slot;
3018 g_assert (cm->slot < max_vtsize);
3020 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3021 g_hash_table_insert (override_map, m1, cm);
3033 cm->slot = cur_slot++;
3035 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3036 vtable [cm->slot] = cm;
3039 /* override non interface methods */
3040 for (i = 0; i < onum; i++) {
3041 MonoMethod *decl = overrides [i*2];
3042 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3043 g_assert (decl->slot != -1);
3044 vtable [decl->slot] = overrides [i*2 + 1];
3045 overrides [i * 2 + 1]->slot = decl->slot;
3047 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3048 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3050 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3051 check_core_clr_override_method (class, vtable [decl->slot], decl);
3056 * If a method occupies more than one place in the vtable, and it is
3057 * overriden, then change the other occurances too.
3060 for (i = 0; i < max_vtsize; ++i)
3062 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3067 g_hash_table_destroy (override_map);
3070 if (class->generic_class) {
3071 MonoClass *gklass = class->generic_class->container_class;
3073 mono_class_init (gklass);
3075 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3077 class->vtable_size = cur_slot;
3079 /* Try to share the vtable with our parent. */
3080 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3081 class->vtable = class->parent->vtable;
3083 class->vtable = mono_mempool_alloc0 (class->image->mempool, sizeof (gpointer) * class->vtable_size);
3084 memcpy (class->vtable, vtable, sizeof (gpointer) * class->vtable_size);
3087 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3088 if (mono_print_vtable) {
3091 print_implemented_interfaces (class);
3093 for (i = 0; i <= max_iid; i++)
3094 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3097 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3098 class->vtable_size, icount);
3100 for (i = 0; i < class->vtable_size; ++i) {
3105 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3106 mono_method_full_name (cm, TRUE));
3112 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3113 class->name, max_iid);
3115 for (i = 0; i < class->interface_count; i++) {
3116 ic = class->interfaces [i];
3117 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3118 mono_class_interface_offset (class, ic),
3119 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3122 for (k = class->parent; k ; k = k->parent) {
3123 for (i = 0; i < k->interface_count; i++) {
3124 ic = k->interfaces [i];
3125 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3126 mono_class_interface_offset (class, ic),
3127 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3134 static MonoMethod *default_ghc = NULL;
3135 static MonoMethod *default_finalize = NULL;
3136 static int finalize_slot = -1;
3137 static int ghc_slot = -1;
3140 initialize_object_slots (MonoClass *class)
3145 if (class == mono_defaults.object_class) {
3146 mono_class_setup_vtable (class);
3147 for (i = 0; i < class->vtable_size; ++i) {
3148 MonoMethod *cm = class->vtable [i];
3150 if (!strcmp (cm->name, "GetHashCode"))
3152 else if (!strcmp (cm->name, "Finalize"))
3156 g_assert (ghc_slot > 0);
3157 default_ghc = class->vtable [ghc_slot];
3159 g_assert (finalize_slot > 0);
3160 default_finalize = class->vtable [finalize_slot];
3165 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
3167 GList* n = mono_mempool_alloc (mp, sizeof (GList));
3175 MonoMethod *array_method;
3177 } GenericArrayMethodInfo;
3179 static int generic_array_method_num = 0;
3180 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3183 generic_array_methods (MonoClass *class)
3185 int i, count_generic = 0;
3186 GList *list = NULL, *tmp;
3187 if (generic_array_method_num)
3188 return generic_array_method_num;
3189 mono_class_setup_methods (class->parent);
3190 for (i = 0; i < class->parent->method.count; i++) {
3191 MonoMethod *m = class->parent->methods [i];
3192 if (!strncmp (m->name, "InternalArray__", 15)) {
3194 list = g_list_prepend (list, m);
3197 list = g_list_reverse (list);
3198 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3200 for (tmp = list; tmp; tmp = tmp->next) {
3201 const char *mname, *iname;
3203 MonoMethod *m = tmp->data;
3204 generic_array_method_info [i].array_method = m;
3205 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3206 iname = "System.Collections.Generic.ICollection`1.";
3207 mname = m->name + 27;
3208 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3209 iname = "System.Collections.Generic.IEnumerable`1.";
3210 mname = m->name + 27;
3211 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3212 iname = "System.Collections.Generic.IList`1.";
3213 mname = m->name + 15;
3215 g_assert_not_reached ();
3218 name = mono_mempool_alloc (mono_defaults.corlib->mempool, strlen (iname) + strlen (mname) + 1);
3219 strcpy (name, iname);
3220 strcpy (name + strlen (iname), mname);
3221 generic_array_method_info [i].name = name;
3224 /*g_print ("array generic methods: %d\n", count_generic);*/
3226 generic_array_method_num = count_generic;
3227 return generic_array_method_num;
3231 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, int pos)
3233 MonoGenericContext tmp_context;
3236 tmp_context.class_inst = NULL;
3237 tmp_context.method_inst = iface->generic_class->context.class_inst;
3238 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3240 for (i = 0; i < generic_array_method_num; i++) {
3241 MonoMethod *m = generic_array_method_info [i].array_method;
3242 MonoMethod *inflated;
3244 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3245 class->methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3250 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
3254 method = (MonoMethod *) mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethodPInvoke));
3255 method->klass = class;
3256 method->flags = METHOD_ATTRIBUTE_PUBLIC;
3257 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
3258 method->signature = sig;
3259 method->name = name;
3262 if (name [0] == '.') {
3263 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
3265 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
3271 concat_two_strings_with_zero (MonoMemPool *pool, const char *s1, const char *s2)
3273 int len = strlen (s1) + strlen (s2) + 2;
3274 char *s = mono_mempool_alloc (pool, len);
3277 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3278 g_assert (result == len - 1);
3284 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3286 class->exception_type = error->exception_type;
3288 switch (error->exception_type) {
3289 case MONO_EXCEPTION_TYPE_LOAD:
3290 class->exception_data = concat_two_strings_with_zero (class->image->mempool, error->class_name, error->assembly_name);
3293 case MONO_EXCEPTION_MISSING_METHOD:
3294 class->exception_data = concat_two_strings_with_zero (class->image->mempool, error->class_name, error->member_name);
3297 case MONO_EXCEPTION_MISSING_FIELD: {
3298 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3299 const char *class_name;
3302 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3304 class_name = error->klass->name;
3306 class->exception_data = concat_two_strings_with_zero (class->image->mempool, class_name, error->member_name);
3309 g_free ((void*)class_name);
3313 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3316 if (error->ref_only)
3317 msg = "Cannot resolve dependency to assembly '%s' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.";
3319 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3321 class->exception_data = concat_two_strings_with_zero (class->image->mempool, msg, error->assembly_name);
3325 case MONO_EXCEPTION_BAD_IMAGE:
3326 class->exception_data = error->msg;
3330 g_assert_not_reached ();
3335 check_core_clr_inheritance (MonoClass *class)
3337 MonoSecurityCoreCLRLevel class_level, parent_level;
3338 MonoClass *parent = class->parent;
3343 class_level = mono_security_core_clr_class_level (class);
3344 parent_level = mono_security_core_clr_class_level (parent);
3346 if (class_level < parent_level) {
3347 class->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3348 class->exception_data = NULL;
3354 * @class: the class to initialize
3356 * compute the instance_size, class_size and other infos that cannot be
3357 * computed at mono_class_get() time. Also compute a generic vtable and
3358 * the method slot numbers. We use this infos later to create a domain
3361 * Returns TRUE on success or FALSE if there was a problem in loading
3362 * the type (incorrect assemblies, missing assemblies, methods, etc).
3365 mono_class_init (MonoClass *class)
3368 MonoCachedClassInfo cached_info;
3369 gboolean has_cached_info;
3370 int class_init_ok = TRUE;
3375 return class->exception_type == MONO_EXCEPTION_NONE;
3377 /*g_print ("Init class %s\n", class->name);*/
3379 /* We do everything inside the lock to prevent races */
3380 mono_loader_lock ();
3382 if (class->inited) {
3383 mono_loader_unlock ();
3384 /* Somebody might have gotten in before us */
3385 return class->exception_type == MONO_EXCEPTION_NONE;
3388 if (class->init_pending) {
3389 mono_loader_unlock ();
3390 /* this indicates a cyclic dependency */
3391 g_error ("pending init %s.%s\n", class->name_space, class->name);
3394 class->init_pending = 1;
3396 /* CAS - SecurityAction.InheritanceDemand */
3397 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3398 mono_secman_inheritancedemand_class (class, class->parent);
3401 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3402 check_core_clr_inheritance (class);
3404 mono_stats.initialized_class_count++;
3406 if (class->generic_class && !class->generic_class->is_dynamic) {
3407 MonoClass *gklass = class->generic_class->container_class;
3409 mono_stats.generic_class_count++;
3411 class->method = gklass->method;
3412 class->field = gklass->field;
3414 mono_class_init (gklass);
3415 mono_class_setup_methods (gklass);
3416 mono_class_setup_properties (gklass);
3418 if (MONO_CLASS_IS_INTERFACE (class))
3419 class->interface_id = mono_get_unique_iid (class);
3421 g_assert (class->interface_count == gklass->interface_count);
3424 if (class->parent && !class->parent->inited)
3425 mono_class_init (class->parent);
3427 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3429 if (!class->generic_class && !class->image->dynamic && (!has_cached_info || (has_cached_info && cached_info.has_nested_classes))) {
3430 i = mono_metadata_nesting_typedef (class->image, class->type_token, 1);
3433 guint32 cols [MONO_NESTED_CLASS_SIZE];
3434 mono_metadata_decode_row (&class->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
3435 nclass = mono_class_create_from_typedef (class->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
3436 class->nested_classes = g_list_prepend_mempool (class->nested_classes, class->image->mempool, nclass);
3438 i = mono_metadata_nesting_typedef (class->image, class->type_token, i + 1);
3443 * Computes the size used by the fields, and their locations
3445 if (has_cached_info) {
3446 class->instance_size = cached_info.instance_size;
3447 class->sizes.class_size = cached_info.class_size;
3448 class->packing_size = cached_info.packing_size;
3449 class->min_align = cached_info.min_align;
3450 class->blittable = cached_info.blittable;
3451 class->has_references = cached_info.has_references;
3452 class->has_static_refs = cached_info.has_static_refs;
3453 class->no_special_static_fields = cached_info.no_special_static_fields;
3456 if (!class->size_inited){
3457 mono_class_setup_fields (class);
3458 if (class->exception_type || mono_loader_get_last_error ()){
3459 class_init_ok = FALSE;
3465 /* initialize method pointers */
3467 MonoMethod *amethod;
3468 MonoMethodSignature *sig;
3469 int count_generic = 0, first_generic = 0;
3472 class->method.count = 3 + (class->rank > 1? 2: 1);
3474 if (class->interface_count) {
3475 count_generic = generic_array_methods (class);
3476 first_generic = class->method.count;
3477 class->method.count += class->interface_count * count_generic;
3480 sig = mono_metadata_signature_alloc (class->image, class->rank);
3481 sig->ret = &mono_defaults.void_class->byval_arg;
3482 sig->pinvoke = TRUE;
3483 sig->hasthis = TRUE;
3484 for (i = 0; i < class->rank; ++i)
3485 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3487 amethod = create_array_method (class, ".ctor", sig);
3488 class->methods = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethod*) * class->method.count);
3489 class->methods [method_num++] = amethod;
3490 if (class->rank > 1) {
3491 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
3492 sig->ret = &mono_defaults.void_class->byval_arg;
3493 sig->pinvoke = TRUE;
3494 sig->hasthis = TRUE;
3495 for (i = 0; i < class->rank * 2; ++i)
3496 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3498 amethod = create_array_method (class, ".ctor", sig);
3499 class->methods [method_num++] = amethod;
3501 /* element Get (idx11, [idx2, ...]) */
3502 sig = mono_metadata_signature_alloc (class->image, class->rank);
3503 sig->ret = &class->element_class->byval_arg;
3504 sig->pinvoke = TRUE;
3505 sig->hasthis = TRUE;
3506 for (i = 0; i < class->rank; ++i)
3507 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3508 amethod = create_array_method (class, "Get", sig);
3509 class->methods [method_num++] = amethod;
3510 /* element& Address (idx11, [idx2, ...]) */
3511 sig = mono_metadata_signature_alloc (class->image, class->rank);
3512 sig->ret = &class->element_class->this_arg;
3513 sig->pinvoke = TRUE;
3514 sig->hasthis = TRUE;
3515 for (i = 0; i < class->rank; ++i)
3516 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3517 amethod = create_array_method (class, "Address", sig);
3518 class->methods [method_num++] = amethod;
3519 /* void Set (idx11, [idx2, ...], element) */
3520 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
3521 sig->ret = &mono_defaults.void_class->byval_arg;
3522 sig->pinvoke = TRUE;
3523 sig->hasthis = TRUE;
3524 for (i = 0; i < class->rank; ++i)
3525 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3526 sig->params [i] = &class->element_class->byval_arg;
3527 amethod = create_array_method (class, "Set", sig);
3528 class->methods [method_num++] = amethod;
3530 for (i = 0; i < class->interface_count; i++)
3531 setup_generic_array_ifaces (class, class->interfaces [i], first_generic + i * count_generic);
3534 mono_class_setup_supertypes (class);
3537 initialize_object_slots (class);
3540 * If possible, avoid the creation of the generic vtable by requesting
3541 * cached info from the runtime.
3543 if (has_cached_info) {
3544 guint32 cur_slot = 0;
3546 class->vtable_size = cached_info.vtable_size;
3547 class->has_finalize = cached_info.has_finalize;
3548 class->ghcimpl = cached_info.ghcimpl;
3549 class->has_cctor = cached_info.has_cctor;
3551 if (class->parent) {
3552 mono_class_init (class->parent);
3553 cur_slot = class->parent->vtable_size;
3556 setup_interface_offsets (class, cur_slot);
3559 mono_class_setup_vtable (class);
3561 if (class->exception_type || mono_loader_get_last_error ()){
3562 class_init_ok = FALSE;
3567 if (class->parent) {
3568 MonoMethod *cmethod = class->vtable [ghc_slot];
3569 if (cmethod->is_inflated)
3570 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3571 if (cmethod == default_ghc) {
3576 /* Object::Finalize should have empty implemenatation */
3577 class->has_finalize = 0;
3578 if (class->parent) {
3579 MonoMethod *cmethod = class->vtable [finalize_slot];
3580 if (cmethod->is_inflated)
3581 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3582 if (cmethod != default_finalize) {
3583 class->has_finalize = 1;
3587 for (i = 0; i < class->method.count; ++i) {
3588 MonoMethod *method = class->methods [i];
3589 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3590 (strcmp (".cctor", method->name) == 0)) {
3591 class->has_cctor = 1;
3597 if (MONO_CLASS_IS_INTERFACE (class)) {
3599 * knowledge of interface offsets is needed for the castclass/isinst code, so
3600 * we have to setup them for interfaces, too.
3602 setup_interface_offsets (class, 0);
3607 class->init_pending = 0;
3609 if (mono_loader_get_last_error ()) {
3610 if (class->exception_type == MONO_EXCEPTION_NONE)
3611 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3613 mono_loader_clear_error ();
3616 mono_loader_unlock ();
3618 if (mono_debugger_class_init_func)
3619 mono_debugger_class_init_func (class);
3621 return class_init_ok;
3625 * LOCKING: this assumes the loader lock is held
3628 mono_class_setup_mono_type (MonoClass *class)
3630 const char *name = class->name;
3631 const char *nspace = class->name_space;
3633 class->this_arg.byref = 1;
3634 class->this_arg.data.klass = class;
3635 class->this_arg.type = MONO_TYPE_CLASS;
3636 class->byval_arg.data.klass = class;
3637 class->byval_arg.type = MONO_TYPE_CLASS;
3639 if (!strcmp (nspace, "System")) {
3640 if (!strcmp (name, "ValueType")) {
3642 * do not set the valuetype bit for System.ValueType.
3643 * class->valuetype = 1;
3645 class->blittable = TRUE;
3646 } else if (!strcmp (name, "Enum")) {
3648 * do not set the valuetype bit for System.Enum.
3649 * class->valuetype = 1;
3651 class->valuetype = 0;
3652 class->enumtype = 0;
3653 } else if (!strcmp (name, "Object")) {
3654 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3655 } else if (!strcmp (name, "String")) {
3656 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3657 } else if (!strcmp (name, "TypedReference")) {
3658 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3662 if (class->valuetype) {
3663 int t = MONO_TYPE_VALUETYPE;
3664 if (!strcmp (nspace, "System")) {
3667 if (!strcmp (name, "Boolean")) {
3668 t = MONO_TYPE_BOOLEAN;
3669 } else if (!strcmp(name, "Byte")) {
3671 class->blittable = TRUE;
3675 if (!strcmp (name, "Char")) {
3680 if (!strcmp (name, "Double")) {
3682 class->blittable = TRUE;
3686 if (!strcmp (name, "Int32")) {
3688 class->blittable = TRUE;
3689 } else if (!strcmp(name, "Int16")) {
3691 class->blittable = TRUE;
3692 } else if (!strcmp(name, "Int64")) {
3694 class->blittable = TRUE;
3695 } else if (!strcmp(name, "IntPtr")) {
3697 class->blittable = TRUE;
3701 if (!strcmp (name, "Single")) {
3703 class->blittable = TRUE;
3704 } else if (!strcmp(name, "SByte")) {
3706 class->blittable = TRUE;
3710 if (!strcmp (name, "UInt32")) {
3712 class->blittable = TRUE;
3713 } else if (!strcmp(name, "UInt16")) {
3715 class->blittable = TRUE;
3716 } else if (!strcmp(name, "UInt64")) {
3718 class->blittable = TRUE;
3719 } else if (!strcmp(name, "UIntPtr")) {
3721 class->blittable = TRUE;
3725 if (!strcmp (name, "TypedReference")) {
3726 t = MONO_TYPE_TYPEDBYREF;
3727 class->blittable = TRUE;
3731 if (!strcmp (name, "Void")) {
3739 class->this_arg.type = class->byval_arg.type = t;
3742 if (MONO_CLASS_IS_INTERFACE (class))
3743 class->interface_id = mono_get_unique_iid (class);
3748 * LOCKING: this assumes the loader lock is held
3751 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
3753 gboolean system_namespace;
3755 system_namespace = !strcmp (class->name_space, "System");
3757 /* if root of the hierarchy */
3758 if (system_namespace && !strcmp (class->name, "Object")) {
3759 class->parent = NULL;
3760 class->instance_size = sizeof (MonoObject);
3763 if (!strcmp (class->name, "<Module>")) {
3764 class->parent = NULL;
3765 class->instance_size = 0;
3769 if (!MONO_CLASS_IS_INTERFACE (class)) {
3770 /* Imported COM Objects always derive from __ComObject. */
3771 if (MONO_CLASS_IS_IMPORT (class)) {
3772 mono_init_com_types ();
3773 if (parent == mono_defaults.object_class)
3774 parent = mono_defaults.com_object_class;
3776 class->parent = parent;
3780 g_assert_not_reached (); /* FIXME */
3782 if (parent->generic_class && !parent->name) {
3784 * If the parent is a generic instance, we may get
3785 * called before it is fully initialized, especially
3786 * before it has its name.
3791 class->marshalbyref = parent->marshalbyref;
3792 class->contextbound = parent->contextbound;
3793 class->delegate = parent->delegate;
3794 if (MONO_CLASS_IS_IMPORT (class))
3795 class->is_com_object = 1;
3797 class->is_com_object = parent->is_com_object;
3799 if (system_namespace) {
3800 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
3801 class->marshalbyref = 1;
3803 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
3804 class->contextbound = 1;
3806 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
3807 class->delegate = 1;
3810 if (class->parent->enumtype || ((strcmp (class->parent->name, "ValueType") == 0) &&
3811 (strcmp (class->parent->name_space, "System") == 0)))
3812 class->valuetype = 1;
3813 if (((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
3814 class->valuetype = class->enumtype = 1;
3816 /*class->enumtype = class->parent->enumtype; */
3817 mono_class_setup_supertypes (class);
3819 /* initialize com types if COM interfaces are present */
3820 if (MONO_CLASS_IS_IMPORT (class))
3821 mono_init_com_types ();
3822 class->parent = NULL;
3828 * mono_class_setup_supertypes:
3831 * Build the data structure needed to make fast type checks work.
3832 * This currently sets two fields in @class:
3833 * - idepth: distance between @class and System.Object in the type
3835 * - supertypes: array of classes: each element has a class in the hierarchy
3836 * starting from @class up to System.Object
3838 * LOCKING: this assumes the loader lock is held
3841 mono_class_setup_supertypes (MonoClass *class)
3845 if (class->supertypes)
3848 if (class->parent && !class->parent->supertypes)
3849 mono_class_setup_supertypes (class->parent);
3851 class->idepth = class->parent->idepth + 1;
3855 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
3856 class->supertypes = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoClass *) * ms);
3858 if (class->parent) {
3859 class->supertypes [class->idepth - 1] = class;
3860 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
3862 class->supertypes [0] = class;
3867 * mono_class_create_from_typedef:
3868 * @image: image where the token is valid
3869 * @type_token: typedef token
3871 * Create the MonoClass* representing the specified type token.
3872 * @type_token must be a TypeDef token.
3875 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
3877 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
3878 MonoClass *class, *parent = NULL;
3879 guint32 cols [MONO_TYPEDEF_SIZE];
3880 guint32 cols_next [MONO_TYPEDEF_SIZE];
3881 guint tidx = mono_metadata_token_index (type_token);
3882 MonoGenericContext *context = NULL;
3883 const char *name, *nspace;
3885 MonoClass **interfaces;
3886 guint32 field_last, method_last;
3887 guint32 nesting_tokeen;
3889 mono_loader_lock ();
3891 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
3892 mono_loader_unlock ();
3896 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
3898 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
3900 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
3901 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
3903 class = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
3906 class->name_space = nspace;
3908 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
3910 class->image = image;
3911 class->type_token = type_token;
3912 class->flags = cols [MONO_TYPEDEF_FLAGS];
3914 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
3917 * Check whether we're a generic type definition.
3919 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
3920 if (class->generic_container) {
3921 class->generic_container->owner.klass = class;
3922 context = &class->generic_container->context;
3925 if (cols [MONO_TYPEDEF_EXTENDS]) {
3926 parent = mono_class_get_full (
3927 image, mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]), context);
3928 if (parent == NULL){
3929 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
3930 mono_loader_unlock ();
3931 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
3936 /* do this early so it's available for interfaces in setup_mono_type () */
3937 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
3938 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
3940 mono_class_setup_parent (class, parent);
3942 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
3943 mono_class_setup_mono_type (class);
3945 if (!class->enumtype) {
3946 if (!mono_metadata_interfaces_from_typedef_full (
3947 image, type_token, &interfaces, &icount, context)){
3948 mono_loader_unlock ();
3949 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
3953 class->interfaces = interfaces;
3954 class->interface_count = icount;
3957 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
3961 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
3965 class->cast_class = class->element_class = class;
3967 /*g_print ("Load class %s\n", name);*/
3970 * Compute the field and method lists
3972 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
3973 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
3975 if (tt->rows > tidx){
3976 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
3977 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
3978 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
3980 field_last = image->tables [MONO_TABLE_FIELD].rows;
3981 method_last = image->tables [MONO_TABLE_METHOD].rows;
3984 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
3985 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
3986 class->field.count = field_last - class->field.first;
3988 class->field.count = 0;
3990 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
3991 class->method.count = method_last - class->method.first;
3993 class->method.count = 0;
3995 /* reserve space to store vector pointer in arrays */
3996 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
3997 class->instance_size += 2 * sizeof (gpointer);
3998 g_assert (class->field.count == 0);
4001 if (class->enumtype) {
4002 class->enum_basetype = mono_class_find_enum_basetype (class);
4003 if (!class->enum_basetype) {
4004 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4005 mono_loader_unlock ();
4008 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
4012 * If we're a generic type definition, load the constraints.
4013 * We must do this after the class has been constructed to make certain recursive scenarios
4016 if (class->generic_container)
4017 mono_metadata_load_generic_param_constraints (
4018 image, type_token, class->generic_container);
4020 mono_loader_unlock ();
4022 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4027 /** is klass Nullable<T>? */
4029 mono_class_is_nullable (MonoClass *klass)
4031 return klass->generic_class != NULL &&
4032 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4036 /** if klass is T? return T */
4038 mono_class_get_nullable_param (MonoClass *klass)
4040 g_assert (mono_class_is_nullable (klass));
4041 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4045 * Create the `MonoClass' for an instantiation of a generic type.
4046 * We only do this if we actually need it.
4049 mono_generic_class_get_class (MonoGenericClass *gclass)
4051 MonoClass *klass, *gklass;
4054 mono_loader_lock ();
4055 if (gclass->cached_class) {
4056 mono_loader_unlock ();
4057 return gclass->cached_class;
4060 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4061 klass = gclass->cached_class;
4063 gklass = gclass->container_class;
4065 if (gklass->nested_in) {
4067 * FIXME: the nested type context should include everything the
4068 * nesting context should have, but it may also have additional
4069 * generic parameters...
4071 MonoType *inflated = mono_class_inflate_generic_type (
4072 &gklass->nested_in->byval_arg, mono_generic_class_get_context (gclass));
4073 klass->nested_in = mono_class_from_mono_type (inflated);
4074 mono_metadata_free_type (inflated);
4077 klass->name = gklass->name;
4078 klass->name_space = gklass->name_space;
4080 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4082 klass->image = gklass->image;
4083 klass->flags = gklass->flags;
4084 klass->type_token = gklass->type_token;
4085 klass->field.count = gklass->field.count;
4086 klass->property.count = gklass->property.count;
4088 klass->generic_class = gclass;
4090 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4091 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4092 klass->this_arg.byref = TRUE;
4093 klass->enumtype = gklass->enumtype;
4094 klass->valuetype = gklass->valuetype;
4096 klass->cast_class = klass->element_class = klass;
4098 if (mono_class_is_nullable (klass))
4099 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4101 klass->interface_count = gklass->interface_count;
4102 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
4103 for (i = 0; i < klass->interface_count; i++) {
4104 MonoType *it = &gklass->interfaces [i]->byval_arg;
4105 MonoType *inflated = mono_class_inflate_generic_type (it, mono_generic_class_get_context (gclass));
4106 klass->interfaces [i] = mono_class_from_mono_type (inflated);
4107 mono_metadata_free_type (inflated);
4111 * We're not interested in the nested classes of a generic instance.
4112 * We use the generic type definition to look for nested classes.
4114 klass->nested_classes = NULL;
4116 if (gklass->parent) {
4117 MonoType *inflated = mono_class_inflate_generic_type (
4118 &gklass->parent->byval_arg, mono_generic_class_get_context (gclass));
4120 klass->parent = mono_class_from_mono_type (inflated);
4121 mono_metadata_free_type (inflated);
4125 mono_class_setup_parent (klass, klass->parent);
4127 if (klass->enumtype) {
4128 klass->enum_basetype = gklass->enum_basetype;
4129 klass->cast_class = gklass->cast_class;
4132 if (gclass->is_dynamic) {
4135 mono_class_setup_supertypes (klass);
4137 if (klass->enumtype) {
4139 * For enums, gklass->fields might not been set, but instance_size etc. is
4140 * already set in mono_reflection_create_internal_class (). For non-enums,
4141 * these will be computed normally in mono_class_layout_fields ().
4143 klass->instance_size = gklass->instance_size;
4144 klass->sizes.class_size = gklass->sizes.class_size;
4145 klass->size_inited = 1;
4149 if (MONO_CLASS_IS_INTERFACE (klass))
4150 setup_interface_offsets (klass, 0);
4152 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4154 mono_loader_unlock ();
4160 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4162 MonoClass *klass, **ptr;
4165 mono_loader_lock ();
4167 if (param->pklass) {
4168 mono_loader_unlock ();
4169 return param->pklass;
4172 if (!image && param->owner) {
4174 MonoMethod *method = param->owner->owner.method;
4175 image = (method && method->klass) ? method->klass->image : NULL;
4177 MonoClass *klass = param->owner->owner.klass;
4178 // FIXME: 'klass' should not be null
4179 // But, monodis creates GenericContainers without associating a owner to it
4180 image = klass ? klass->image : NULL;
4185 image = mono_defaults.corlib;
4187 klass = param->pklass = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4190 klass->name = param->name;
4192 klass->name = mono_mempool_alloc0 (image->mempool, 16);
4193 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4195 klass->name_space = "";
4196 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4198 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4202 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4203 klass->parent = param->constraints [0];
4205 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4206 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4208 klass->parent = mono_defaults.object_class;
4210 if (count - pos > 0) {
4211 klass->interface_count = count - pos;
4212 klass->interfaces = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass *) * (count - pos));
4213 for (i = pos; i < count; i++)
4214 klass->interfaces [i - pos] = param->constraints [i];
4218 image = mono_defaults.corlib;
4220 klass->image = image;
4222 klass->inited = TRUE;
4223 klass->cast_class = klass->element_class = klass;
4224 klass->enum_basetype = &klass->element_class->byval_arg;
4225 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4227 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4228 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4229 klass->this_arg.byref = TRUE;
4231 mono_class_setup_supertypes (klass);
4233 mono_loader_unlock ();
4235 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4241 mono_ptr_class_get (MonoType *type)
4244 MonoClass *el_class;
4248 el_class = mono_class_from_mono_type (type);
4249 image = el_class->image;
4251 mono_loader_lock ();
4253 if (!image->ptr_cache)
4254 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4256 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4257 mono_loader_unlock ();
4260 result = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4262 result->parent = NULL; /* no parent for PTR types */
4263 result->name_space = el_class->name_space;
4264 name = g_strdup_printf ("%s*", el_class->name);
4265 result->name = mono_mempool_strdup (image->mempool, name);
4268 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4270 result->image = el_class->image;
4271 result->inited = TRUE;
4272 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4273 /* Can pointers get boxed? */
4274 result->instance_size = sizeof (gpointer);
4275 result->cast_class = result->element_class = el_class;
4276 result->enum_basetype = &result->element_class->byval_arg;
4277 result->blittable = TRUE;
4279 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4280 result->this_arg.data.type = result->byval_arg.data.type = result->enum_basetype;
4281 result->this_arg.byref = TRUE;
4283 mono_class_setup_supertypes (result);
4285 g_hash_table_insert (image->ptr_cache, el_class, result);
4287 mono_loader_unlock ();
4289 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4295 mono_fnptr_class_get (MonoMethodSignature *sig)
4298 static GHashTable *ptr_hash = NULL;
4300 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4302 mono_loader_lock ();
4305 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4307 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4308 mono_loader_unlock ();
4311 result = g_new0 (MonoClass, 1);
4313 result->parent = NULL; /* no parent for PTR types */
4314 result->name_space = "System";
4315 result->name = "MonoFNPtrFakeClass";
4317 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4319 result->image = mono_defaults.corlib; /* need to fix... */
4320 result->inited = TRUE;
4321 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4322 /* Can pointers get boxed? */
4323 result->instance_size = sizeof (gpointer);
4324 result->cast_class = result->element_class = result;
4325 result->blittable = TRUE;
4327 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4328 result->this_arg.data.method = result->byval_arg.data.method = sig;
4329 result->this_arg.byref = TRUE;
4330 result->enum_basetype = &result->element_class->byval_arg;
4331 result->blittable = TRUE;
4333 mono_class_setup_supertypes (result);
4335 g_hash_table_insert (ptr_hash, sig, result);
4337 mono_loader_unlock ();
4339 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4345 mono_class_from_mono_type (MonoType *type)
4347 switch (type->type) {
4348 case MONO_TYPE_OBJECT:
4349 return type->data.klass? type->data.klass: mono_defaults.object_class;
4350 case MONO_TYPE_VOID:
4351 return type->data.klass? type->data.klass: mono_defaults.void_class;
4352 case MONO_TYPE_BOOLEAN:
4353 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4354 case MONO_TYPE_CHAR:
4355 return type->data.klass? type->data.klass: mono_defaults.char_class;
4357 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4359 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4361 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4363 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4365 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4367 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4369 return type->data.klass? type->data.klass: mono_defaults.int_class;
4371 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4373 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4375 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4377 return type->data.klass? type->data.klass: mono_defaults.single_class;
4379 return type->data.klass? type->data.klass: mono_defaults.double_class;
4380 case MONO_TYPE_STRING:
4381 return type->data.klass? type->data.klass: mono_defaults.string_class;
4382 case MONO_TYPE_TYPEDBYREF:
4383 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4384 case MONO_TYPE_ARRAY:
4385 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4387 return mono_ptr_class_get (type->data.type);
4388 case MONO_TYPE_FNPTR:
4389 return mono_fnptr_class_get (type->data.method);
4390 case MONO_TYPE_SZARRAY:
4391 return mono_array_class_get (type->data.klass, 1);
4392 case MONO_TYPE_CLASS:
4393 case MONO_TYPE_VALUETYPE:
4394 return type->data.klass;
4395 case MONO_TYPE_GENERICINST:
4396 return mono_generic_class_get_class (type->data.generic_class);
4398 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4399 case MONO_TYPE_MVAR:
4400 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4402 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4403 g_assert_not_reached ();
4410 * mono_type_retrieve_from_typespec
4411 * @image: context where the image is created
4412 * @type_spec: typespec token
4413 * @context: the generic context used to evaluate generic instantiations in
4416 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4418 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4421 if (context && (context->class_inst || context->method_inst)) {
4422 MonoType *inflated = inflate_generic_type (t, context);
4430 * mono_class_create_from_typespec
4431 * @image: context where the image is created
4432 * @type_spec: typespec token
4433 * @context: the generic context used to evaluate generic instantiations in
4436 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4438 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context);
4441 return mono_class_from_mono_type (t);
4445 * mono_bounded_array_class_get:
4446 * @element_class: element class
4447 * @rank: the dimension of the array class
4448 * @bounded: whenever the array has non-zero bounds
4450 * Returns: a class object describing the array with element type @element_type and
4454 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4458 MonoClass *parent = NULL;
4459 GSList *list, *rootlist;
4462 gboolean corlib_type = FALSE;
4464 g_assert (rank <= 255);
4467 /* bounded only matters for one-dimensional arrays */
4470 image = eclass->image;
4472 mono_loader_lock ();
4474 if (!image->array_cache)
4475 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4477 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4478 for (; list; list = list->next) {
4480 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4481 mono_loader_unlock ();
4487 /* for the building corlib use System.Array from it */
4488 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4489 parent = mono_class_from_name (image, "System", "Array");
4492 parent = mono_defaults.array_class;
4493 if (!parent->inited)
4494 mono_class_init (parent);
4497 class = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4499 class->image = image;
4500 class->name_space = eclass->name_space;
4501 nsize = strlen (eclass->name);
4502 name = g_malloc (nsize + 2 + rank);
4503 memcpy (name, eclass->name, nsize);
4506 memset (name + nsize + 1, ',', rank - 1);
4507 name [nsize + rank] = ']';
4508 name [nsize + rank + 1] = 0;
4509 class->name = mono_mempool_strdup (image->mempool, name);
4512 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4514 class->type_token = 0;
4515 /* all arrays are marked serializable and sealed, bug #42779 */
4516 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4517 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4518 class->parent = parent;
4519 class->instance_size = mono_class_instance_size (class->parent);
4521 if (eclass->enumtype && !eclass->enum_basetype) {
4522 if (!eclass->reflection_info || eclass->wastypebuilder) {
4523 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4524 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4526 /* element_size -1 is ok as this is not an instantitable type*/
4527 class->sizes.element_size = -1;
4529 class->sizes.element_size = mono_class_array_element_size (eclass);
4531 mono_class_setup_supertypes (class);
4533 if (mono_defaults.generic_ilist_class && !bounded && rank == 1) {
4536 /* generic IList, ICollection, IEnumerable */
4537 class->interface_count = 1;
4538 class->interfaces = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass*) * class->interface_count);
4540 args [0] = &eclass->byval_arg;
4541 class->interfaces [0] = mono_class_bind_generic_parameters (
4542 mono_defaults.generic_ilist_class, 1, args, FALSE);
4545 if (eclass->generic_class)
4546 mono_class_init (eclass);
4547 if (!eclass->size_inited)
4548 mono_class_setup_fields (eclass);
4549 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4553 if (eclass->enumtype)
4554 class->cast_class = eclass->element_class;
4556 class->cast_class = eclass;
4558 class->element_class = eclass;
4560 if ((rank > 1) || bounded) {
4561 MonoArrayType *at = mono_mempool_alloc0 (image->mempool, sizeof (MonoArrayType));
4562 class->byval_arg.type = MONO_TYPE_ARRAY;
4563 class->byval_arg.data.array = at;
4564 at->eklass = eclass;
4566 /* FIXME: complete.... */
4568 class->byval_arg.type = MONO_TYPE_SZARRAY;
4569 class->byval_arg.data.klass = eclass;
4571 class->this_arg = class->byval_arg;
4572 class->this_arg.byref = 1;
4577 class->generic_container = eclass->generic_container;
4579 list = g_slist_append (rootlist, class);
4580 g_hash_table_insert (image->array_cache, eclass, list);
4582 mono_loader_unlock ();
4584 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4590 * mono_array_class_get:
4591 * @element_class: element class
4592 * @rank: the dimension of the array class
4594 * Returns: a class object describing the array with element type @element_type and
4598 mono_array_class_get (MonoClass *eclass, guint32 rank)
4600 return mono_bounded_array_class_get (eclass, rank, FALSE);
4604 * mono_class_instance_size:
4607 * Returns: the size of an object instance
4610 mono_class_instance_size (MonoClass *klass)
4612 if (!klass->size_inited)
4613 mono_class_init (klass);
4615 return klass->instance_size;
4619 * mono_class_min_align:
4622 * Returns: minimm alignment requirements
4625 mono_class_min_align (MonoClass *klass)
4627 if (!klass->size_inited)
4628 mono_class_init (klass);
4630 return klass->min_align;
4634 * mono_class_value_size:
4637 * This function is used for value types, and return the
4638 * space and the alignment to store that kind of value object.
4640 * Returns: the size of a value of kind @klass
4643 mono_class_value_size (MonoClass *klass, guint32 *align)
4647 /* fixme: check disable, because we still have external revereces to
4648 * mscorlib and Dummy Objects
4650 /*g_assert (klass->valuetype);*/
4652 size = mono_class_instance_size (klass) - sizeof (MonoObject);
4655 *align = klass->min_align;
4661 * mono_class_data_size:
4664 * Returns: the size of the static class data
4667 mono_class_data_size (MonoClass *klass)
4670 mono_class_init (klass);
4672 /* in arrays, sizes.class_size is unioned with element_size
4673 * and arrays have no static fields
4677 return klass->sizes.class_size;
4681 * Auxiliary routine to mono_class_get_field
4683 * Takes a field index instead of a field token.
4685 static MonoClassField *
4686 mono_class_get_field_idx (MonoClass *class, int idx)
4688 mono_class_setup_fields_locking (class);
4691 if (class->image->uncompressed_metadata) {
4693 * class->field.first points to the FieldPtr table, while idx points into the
4694 * Field table, so we have to do a search.
4696 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
4699 for (i = 0; i < class->field.count; ++i)
4700 if (class->fields [i].name == name)
4701 return &class->fields [i];
4702 g_assert_not_reached ();
4704 if (class->field.count) {
4705 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
4706 return &class->fields [idx - class->field.first];
4710 class = class->parent;
4716 * mono_class_get_field:
4717 * @class: the class to lookup the field.
4718 * @field_token: the field token
4720 * Returns: A MonoClassField representing the type and offset of
4721 * the field, or a NULL value if the field does not belong to this
4725 mono_class_get_field (MonoClass *class, guint32 field_token)
4727 int idx = mono_metadata_token_index (field_token);
4729 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
4731 return mono_class_get_field_idx (class, idx - 1);
4735 * mono_class_get_field_from_name:
4736 * @klass: the class to lookup the field.
4737 * @name: the field name
4739 * Search the class @klass and it's parents for a field with the name @name.
4741 * Returns: the MonoClassField pointer of the named field or NULL
4744 mono_class_get_field_from_name (MonoClass *klass, const char *name)
4748 mono_class_setup_fields_locking (klass);
4750 for (i = 0; i < klass->field.count; ++i) {
4751 if (strcmp (name, klass->fields [i].name) == 0)
4752 return &klass->fields [i];
4754 klass = klass->parent;
4760 * mono_class_get_field_token:
4761 * @field: the field we need the token of
4763 * Get the token of a field. Note that the tokesn is only valid for the image
4764 * the field was loaded from. Don't use this function for fields in dynamic types.
4766 * Returns: the token representing the field in the image it was loaded from.
4769 mono_class_get_field_token (MonoClassField *field)
4771 MonoClass *klass = field->parent;
4774 mono_class_setup_fields_locking (klass);
4776 for (i = 0; i < klass->field.count; ++i) {
4777 if (&klass->fields [i] == field) {
4778 int idx = klass->field.first + i + 1;
4780 if (klass->image->uncompressed_metadata)
4781 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
4782 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
4785 klass = klass->parent;
4788 g_assert_not_reached ();
4793 * mono_class_get_field_default_value:
4795 * Return the default value of the field as a pointer into the metadata blob.
4798 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
4801 guint32 constant_cols [MONO_CONSTANT_SIZE];
4803 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
4806 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), cindex + 1);
4808 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
4810 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
4811 field->def_type = constant_cols [MONO_CONSTANT_TYPE];
4812 field->data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
4815 *def_type = field->def_type;
4820 mono_class_get_event_token (MonoEvent *event)
4822 MonoClass *klass = event->parent;
4826 for (i = 0; i < klass->event.count; ++i) {
4827 if (&klass->events [i] == event)
4828 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->event.first + i + 1);
4830 klass = klass->parent;
4833 g_assert_not_reached ();
4838 mono_class_get_property_from_name (MonoClass *klass, const char *name)
4842 gpointer iter = NULL;
4843 while ((p = mono_class_get_properties (klass, &iter))) {
4844 if (! strcmp (name, p->name))
4847 klass = klass->parent;
4853 mono_class_get_property_token (MonoProperty *prop)
4855 MonoClass *klass = prop->parent;
4859 gpointer iter = NULL;
4860 while ((p = mono_class_get_properties (klass, &iter))) {
4861 if (&klass->properties [i] == prop)
4862 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->property.first + i + 1);
4866 klass = klass->parent;
4869 g_assert_not_reached ();
4874 mono_class_name_from_token (MonoImage *image, guint32 type_token)
4876 const char *name, *nspace;
4878 return g_strdup_printf ("DynamicType 0x%08x", type_token);
4880 switch (type_token & 0xff000000){
4881 case MONO_TOKEN_TYPE_DEF: {
4882 guint32 cols [MONO_TYPEDEF_SIZE];
4883 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4884 guint tidx = mono_metadata_token_index (type_token);
4886 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4887 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4888 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4889 if (strlen (nspace) == 0)
4890 return g_strdup_printf ("%s", name);
4892 return g_strdup_printf ("%s.%s", nspace, name);
4895 case MONO_TOKEN_TYPE_REF: {
4896 guint32 cols [MONO_TYPEREF_SIZE];
4897 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
4899 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
4900 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
4901 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
4902 if (strlen (nspace) == 0)
4903 return g_strdup_printf ("%s", name);
4905 return g_strdup_printf ("%s.%s", nspace, name);
4908 case MONO_TOKEN_TYPE_SPEC:
4909 return g_strdup_printf ("Typespec 0x%08x", type_token);
4911 g_assert_not_reached ();
4918 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
4921 return g_strdup_printf ("DynamicAssembly %s", image->name);
4923 switch (type_token & 0xff000000){
4924 case MONO_TOKEN_TYPE_DEF:
4925 return mono_stringify_assembly_name (&image->assembly->aname);
4927 case MONO_TOKEN_TYPE_REF: {
4928 MonoAssemblyName aname;
4929 guint32 cols [MONO_TYPEREF_SIZE];
4930 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
4933 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
4935 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
4936 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
4937 case MONO_RESOLTION_SCOPE_MODULE:
4939 return g_strdup ("");
4940 case MONO_RESOLTION_SCOPE_MODULEREF:
4942 return g_strdup ("");
4943 case MONO_RESOLTION_SCOPE_TYPEREF:
4945 return g_strdup ("");
4946 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
4947 mono_assembly_get_assemblyref (image, idx - 1, &aname);
4948 return mono_stringify_assembly_name (&aname);
4950 g_assert_not_reached ();
4954 case MONO_TOKEN_TYPE_SPEC:
4956 return g_strdup ("");
4958 g_assert_not_reached ();
4965 * mono_class_get_full:
4966 * @image: the image where the class resides
4967 * @type_token: the token for the class
4968 * @context: the generic context used to evaluate generic instantiations in
4970 * Returns: the MonoClass that represents @type_token in @image
4973 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
4975 MonoClass *class = NULL;
4977 if (image->dynamic) {
4978 int table = mono_metadata_token_table (type_token);
4980 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
4981 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
4984 return mono_lookup_dynamic_token (image, type_token, context);
4987 switch (type_token & 0xff000000){
4988 case MONO_TOKEN_TYPE_DEF:
4989 class = mono_class_create_from_typedef (image, type_token);
4991 case MONO_TOKEN_TYPE_REF:
4992 class = mono_class_from_typeref (image, type_token);
4994 case MONO_TOKEN_TYPE_SPEC:
4995 class = mono_class_create_from_typespec (image, type_token, context);
4998 g_warning ("unknown token type %x", type_token & 0xff000000);
4999 g_assert_not_reached ();
5003 char *name = mono_class_name_from_token (image, type_token);
5004 char *assembly = mono_assembly_name_from_token (image, type_token);
5005 mono_loader_set_error_type_load (name, assembly);
5013 * mono_type_get_full:
5014 * @image: the image where the type resides
5015 * @type_token: the token for the type
5016 * @context: the generic context used to evaluate generic instantiations in
5018 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5020 * Returns: the MonoType that represents @type_token in @image
5023 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5025 MonoType *type = NULL;
5027 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5029 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5031 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5032 MonoClass *class = mono_class_get_full (image, type_token, context);
5033 return class ? mono_class_get_type (class) : NULL;
5036 type = mono_type_retrieve_from_typespec (image, type_token, context);
5039 char *name = mono_class_name_from_token (image, type_token);
5040 char *assembly = mono_assembly_name_from_token (image, type_token);
5041 mono_loader_set_error_type_load (name, assembly);
5049 mono_class_get (MonoImage *image, guint32 type_token)
5051 return mono_class_get_full (image, type_token, NULL);
5055 * mono_image_init_name_cache:
5057 * Initializes the class name cache stored in image->name_cache.
5059 * LOCKING: Acquires the loader lock.
5062 mono_image_init_name_cache (MonoImage *image)
5064 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5065 guint32 cols [MONO_TYPEDEF_SIZE];
5068 guint32 i, visib, nspace_index;
5069 GHashTable *name_cache2, *nspace_table;
5071 mono_loader_lock ();
5073 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5075 if (image->dynamic) {
5076 mono_loader_unlock ();
5080 /* Temporary hash table to avoid lookups in the nspace_table */
5081 name_cache2 = g_hash_table_new (NULL, NULL);
5083 for (i = 1; i <= t->rows; ++i) {
5084 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5085 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5087 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5088 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5090 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5092 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5093 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5095 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5096 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5097 if (!nspace_table) {
5098 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5099 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5100 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5103 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5106 /* Load type names from EXPORTEDTYPES table */
5108 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5109 guint32 cols [MONO_EXP_TYPE_SIZE];
5112 for (i = 0; i < t->rows; ++i) {
5113 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5114 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5115 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5117 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5118 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5119 if (!nspace_table) {
5120 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5121 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5122 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5125 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5129 g_hash_table_destroy (name_cache2);
5131 mono_loader_unlock ();
5135 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5136 const char *name, guint32 index)
5138 GHashTable *nspace_table;
5139 GHashTable *name_cache;
5141 mono_loader_lock ();
5143 if (!image->name_cache)
5144 mono_image_init_name_cache (image);
5146 name_cache = image->name_cache;
5147 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5148 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5149 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5151 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5153 mono_loader_unlock ();
5162 find_nocase (gpointer key, gpointer value, gpointer user_data)
5164 char *name = (char*)key;
5165 FindUserData *data = (FindUserData*)user_data;
5167 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5168 data->value = value;
5172 * mono_class_from_name_case:
5173 * @image: The MonoImage where the type is looked up in
5174 * @name_space: the type namespace
5175 * @name: the type short name.
5177 * Obtains a MonoClass with a given namespace and a given name which
5178 * is located in the given MonoImage. The namespace and name
5179 * lookups are case insensitive.
5182 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5184 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5185 guint32 cols [MONO_TYPEDEF_SIZE];
5190 if (image->dynamic) {
5192 FindUserData user_data;
5194 mono_loader_lock ();
5196 if (!image->name_cache)
5197 mono_image_init_name_cache (image);
5199 user_data.key = name_space;
5200 user_data.value = NULL;
5201 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5203 if (user_data.value) {
5204 GHashTable *nspace_table = (GHashTable*)user_data.value;
5206 user_data.key = name;
5207 user_data.value = NULL;
5209 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5211 if (user_data.value)
5212 token = GPOINTER_TO_UINT (user_data.value);
5215 mono_loader_unlock ();
5218 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5224 /* add a cache if needed */
5225 for (i = 1; i <= t->rows; ++i) {
5226 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5227 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5229 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5230 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5232 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5234 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5235 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5236 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5237 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5243 return_nested_in (MonoClass *class, char *nested) {
5245 char *s = strchr (nested, '/');
5252 for (tmp = class->nested_classes; tmp; tmp = tmp->next) {
5254 if (strcmp (found->name, nested) == 0) {
5256 return return_nested_in (found, s);
5265 * mono_class_from_name:
5266 * @image: The MonoImage where the type is looked up in
5267 * @name_space: the type namespace
5268 * @name: the type short name.
5270 * Obtains a MonoClass with a given namespace and a given name which
5271 * is located in the given MonoImage.
5274 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5276 GHashTable *nspace_table;
5277 MonoImage *loaded_image;
5284 if ((nested = strchr (name, '/'))) {
5285 int pos = nested - name;
5286 int len = strlen (name);
5289 memcpy (buf, name, len + 1);
5291 nested = buf + pos + 1;
5295 if (get_class_from_name) {
5296 gboolean res = get_class_from_name (image, name_space, name, &class);
5299 return class ? return_nested_in (class, nested) : NULL;
5305 mono_loader_lock ();
5307 if (!image->name_cache)
5308 mono_image_init_name_cache (image);
5310 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5313 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5315 mono_loader_unlock ();
5317 if (!token && image->dynamic && image->modules) {
5318 /* Search modules as well */
5319 for (i = 0; i < image->module_count; ++i) {
5320 MonoImage *module = image->modules [i];
5322 class = mono_class_from_name (module, name_space, name);
5331 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5332 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5333 guint32 cols [MONO_EXP_TYPE_SIZE];
5336 idx = mono_metadata_token_index (token);
5338 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5340 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5341 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5342 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5345 class = mono_class_from_name (loaded_image, name_space, name);
5347 return return_nested_in (class, nested);
5349 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5350 MonoAssembly **references = image->references;
5351 if (!references [idx - 1])
5352 mono_assembly_load_reference (image, idx - 1);
5353 g_assert (references == image->references);
5354 g_assert (references [idx - 1]);
5355 if (references [idx - 1] == (gpointer)-1)
5358 /* FIXME: Cycle detection */
5359 return mono_class_from_name (references [idx - 1]->image, name_space, name);
5361 g_error ("not yet implemented");
5365 token = MONO_TOKEN_TYPE_DEF | token;
5367 class = mono_class_get (image, token);
5369 return return_nested_in (class, nested);
5374 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5375 gboolean check_interfaces)
5377 g_assert (klassc->idepth > 0);
5378 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5379 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5381 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5384 for (i = 0; i < klass->interface_count; i ++) {
5385 MonoClass *ic = klass->interfaces [i];
5390 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5395 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5398 if (klassc == mono_defaults.object_class)
5405 mono_class_has_variant_generic_params (MonoClass *klass)
5408 MonoGenericContainer *container;
5410 if (!klass->generic_class)
5413 container = klass->generic_class->container_class->generic_container;
5415 for (i = 0; i < container->type_argc; ++i)
5416 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5423 * mono_class_is_assignable_from:
5424 * @klass: the class to be assigned to
5425 * @oklass: the source class
5427 * Return: true if an instance of object oklass can be assigned to an
5428 * instance of object @klass
5431 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5434 mono_class_init (klass);
5436 if (!oklass->inited)
5437 mono_class_init (oklass);
5439 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5440 return klass == oklass;
5442 if (MONO_CLASS_IS_INTERFACE (klass)) {
5443 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5446 /* interface_offsets might not be set for dynamic classes */
5447 if (oklass->reflection_info && !oklass->interface_bitmap)
5449 * oklass might be a generic type parameter but they have
5450 * interface_offsets set.
5452 return mono_reflection_call_is_assignable_to (oklass, klass);
5454 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5457 if (mono_class_has_variant_generic_params (klass)) {
5458 if (oklass->generic_class) {
5460 gboolean match = FALSE;
5461 MonoClass *container_class1 = klass->generic_class->container_class;
5462 MonoClass *container_class2 = oklass->generic_class->container_class;
5465 * Check whenever the generic definition of oklass implements the
5466 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5467 * here since the relevant tables are not set up.
5469 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5470 if ((container_class2->interfaces_packed [i] == container_class1) || (container_class2->interfaces_packed [i]->generic_class && (container_class2->interfaces_packed [i]->generic_class->container_class == container_class1)))
5474 MonoGenericContainer *container;
5476 container = klass->generic_class->container_class->generic_container;
5479 for (i = 0; i < container->type_argc; ++i) {
5480 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5481 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5484 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5485 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5487 if (param1_class != param2_class) {
5488 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5490 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5502 } else if (klass->rank) {
5503 MonoClass *eclass, *eoclass;
5505 if (oklass->rank != klass->rank)
5508 /* vectors vs. one dimensional arrays */
5509 if (oklass->byval_arg.type != klass->byval_arg.type)
5512 eclass = klass->cast_class;
5513 eoclass = oklass->cast_class;
5516 * a is b does not imply a[] is b[] when a is a valuetype, and
5517 * b is a reference type.
5520 if (eoclass->valuetype) {
5521 if ((eclass == mono_defaults.enum_class) ||
5522 (eclass == mono_defaults.enum_class->parent) ||
5523 (eclass == mono_defaults.object_class))
5527 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5528 } else if (mono_class_is_nullable (klass))
5529 return (mono_class_is_assignable_from (klass->cast_class, oklass));
5530 else if (klass == mono_defaults.object_class)
5533 return mono_class_has_parent (oklass, klass);
5537 * mono_class_get_cctor:
5538 * @klass: A MonoClass pointer
5540 * Returns: the static constructor of @klass if it exists, NULL otherwise.
5543 mono_class_get_cctor (MonoClass *klass)
5545 MonoCachedClassInfo cached_info;
5547 if (!klass->has_cctor)
5550 if (mono_class_get_cached_class_info (klass, &cached_info))
5551 return mono_get_method (klass->image, cached_info.cctor_token, klass);
5553 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
5557 * mono_class_get_finalizer:
5558 * @klass: The MonoClass pointer
5560 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
5563 mono_class_get_finalizer (MonoClass *klass)
5565 MonoCachedClassInfo cached_info;
5568 mono_class_init (klass);
5569 if (!klass->has_finalize)
5572 if (mono_class_get_cached_class_info (klass, &cached_info))
5573 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
5575 mono_class_setup_vtable (klass);
5576 return klass->vtable [finalize_slot];
5581 * mono_class_needs_cctor_run:
5582 * @klass: the MonoClass pointer
5583 * @caller: a MonoMethod describing the caller
5585 * Determines whenever the class has a static constructor and whenever it
5586 * needs to be called when executing CALLER.
5589 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
5593 method = mono_class_get_cctor (klass);
5595 return (method == caller) ? FALSE : TRUE;
5601 * mono_class_array_element_size:
5604 * Returns: the number of bytes an element of type @klass
5605 * uses when stored into an array.
5608 mono_class_array_element_size (MonoClass *klass)
5610 MonoType *type = &klass->byval_arg;
5613 switch (type->type) {
5616 case MONO_TYPE_BOOLEAN:
5620 case MONO_TYPE_CHAR:
5629 case MONO_TYPE_CLASS:
5630 case MONO_TYPE_STRING:
5631 case MONO_TYPE_OBJECT:
5632 case MONO_TYPE_SZARRAY:
5633 case MONO_TYPE_ARRAY:
5635 case MONO_TYPE_MVAR:
5636 return sizeof (gpointer);
5641 case MONO_TYPE_VALUETYPE:
5642 if (type->data.klass->enumtype) {
5643 type = type->data.klass->enum_basetype;
5644 klass = klass->element_class;
5647 return mono_class_instance_size (klass) - sizeof (MonoObject);
5648 case MONO_TYPE_GENERICINST:
5649 type = &type->data.generic_class->container_class->byval_arg;
5652 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
5658 * mono_array_element_size:
5659 * @ac: pointer to a #MonoArrayClass
5661 * Returns: the size of single array element.
5664 mono_array_element_size (MonoClass *ac)
5666 g_assert (ac->rank);
5667 return ac->sizes.element_size;
5671 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
5672 MonoGenericContext *context)
5674 if (image->dynamic) {
5675 MonoClass *tmp_handle_class;
5676 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
5678 g_assert (tmp_handle_class);
5680 *handle_class = tmp_handle_class;
5682 if (tmp_handle_class == mono_defaults.typehandle_class)
5683 return &((MonoClass*)obj)->byval_arg;
5688 switch (token & 0xff000000) {
5689 case MONO_TOKEN_TYPE_DEF:
5690 case MONO_TOKEN_TYPE_REF:
5691 case MONO_TOKEN_TYPE_SPEC: {
5694 *handle_class = mono_defaults.typehandle_class;
5695 type = mono_type_get_full (image, token, context);
5698 mono_class_init (mono_class_from_mono_type (type));
5699 /* We return a MonoType* as handle */
5702 case MONO_TOKEN_FIELD_DEF: {
5704 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
5706 *handle_class = mono_defaults.fieldhandle_class;
5707 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
5710 mono_class_init (class);
5711 return mono_class_get_field (class, token);
5713 case MONO_TOKEN_METHOD_DEF:
5714 case MONO_TOKEN_METHOD_SPEC: {
5716 meth = mono_get_method_full (image, token, NULL, context);
5718 *handle_class = mono_defaults.methodhandle_class;
5721 case MONO_TOKEN_MEMBER_REF: {
5722 guint32 cols [MONO_MEMBERREF_SIZE];
5724 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
5725 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
5726 mono_metadata_decode_blob_size (sig, &sig);
5727 if (*sig == 0x6) { /* it's a field */
5729 MonoClassField *field;
5730 field = mono_field_from_token (image, token, &klass, context);
5732 *handle_class = mono_defaults.fieldhandle_class;
5736 meth = mono_get_method_full (image, token, NULL, context);
5738 *handle_class = mono_defaults.methodhandle_class;
5743 g_warning ("Unknown token 0x%08x in ldtoken", token);
5750 * This function might need to call runtime functions so it can't be part
5751 * of the metadata library.
5753 static MonoLookupDynamicToken lookup_dynamic = NULL;
5756 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
5758 lookup_dynamic = func;
5762 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
5764 MonoClass *handle_class;
5766 return lookup_dynamic (image, token, TRUE, &handle_class, context);
5770 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
5772 return lookup_dynamic (image, token, valid_token, handle_class, context);
5775 static MonoGetCachedClassInfo get_cached_class_info = NULL;
5778 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
5780 get_cached_class_info = func;
5784 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5786 if (!get_cached_class_info)
5789 return get_cached_class_info (klass, res);
5793 mono_install_get_class_from_name (MonoGetClassFromName func)
5795 get_class_from_name = func;
5799 mono_class_get_image (MonoClass *klass)
5801 return klass->image;
5805 * mono_class_get_element_class:
5806 * @klass: the MonoClass to act on
5808 * Returns: the element class of an array or an enumeration.
5811 mono_class_get_element_class (MonoClass *klass)
5813 return klass->element_class;
5817 * mono_class_is_valuetype:
5818 * @klass: the MonoClass to act on
5820 * Returns: true if the MonoClass represents a ValueType.
5823 mono_class_is_valuetype (MonoClass *klass)
5825 return klass->valuetype;
5829 * mono_class_is_enum:
5830 * @klass: the MonoClass to act on
5832 * Returns: true if the MonoClass represents an enumeration.
5835 mono_class_is_enum (MonoClass *klass)
5837 return klass->enumtype;
5841 * mono_class_enum_basetype:
5842 * @klass: the MonoClass to act on
5844 * Returns: the underlying type representation for an enumeration.
5847 mono_class_enum_basetype (MonoClass *klass)
5849 return klass->enum_basetype;
5853 * mono_class_get_parent
5854 * @klass: the MonoClass to act on
5856 * Returns: the parent class for this class.
5859 mono_class_get_parent (MonoClass *klass)
5861 return klass->parent;
5865 * mono_class_get_nesting_type;
5866 * @klass: the MonoClass to act on
5868 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
5871 mono_class_get_nesting_type (MonoClass *klass)
5873 return klass->nested_in;
5877 * mono_class_get_rank:
5878 * @klass: the MonoClass to act on
5880 * Returns: the rank for the array (the number of dimensions).
5883 mono_class_get_rank (MonoClass *klass)
5889 * mono_class_get_flags:
5890 * @klass: the MonoClass to act on
5892 * The type flags from the TypeDef table from the metadata.
5893 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
5896 * Returns: the flags from the TypeDef table.
5899 mono_class_get_flags (MonoClass *klass)
5901 return klass->flags;
5905 * mono_class_get_name
5906 * @klass: the MonoClass to act on
5908 * Returns: the name of the class.
5911 mono_class_get_name (MonoClass *klass)
5917 * mono_class_get_namespace:
5918 * @klass: the MonoClass to act on
5920 * Returns: the namespace of the class.
5923 mono_class_get_namespace (MonoClass *klass)
5925 return klass->name_space;
5929 * mono_class_get_type:
5930 * @klass: the MonoClass to act on
5932 * This method returns the internal Type representation for the class.
5934 * Returns: the MonoType from the class.
5937 mono_class_get_type (MonoClass *klass)
5939 return &klass->byval_arg;
5943 * mono_class_get_type_token
5944 * @klass: the MonoClass to act on
5946 * This method returns type token for the class.
5948 * Returns: the type token for the class.
5951 mono_class_get_type_token (MonoClass *klass)
5953 return klass->type_token;
5957 * mono_class_get_byref_type:
5958 * @klass: the MonoClass to act on
5963 mono_class_get_byref_type (MonoClass *klass)
5965 return &klass->this_arg;
5969 * mono_class_num_fields:
5970 * @klass: the MonoClass to act on
5972 * Returns: the number of static and instance fields in the class.
5975 mono_class_num_fields (MonoClass *klass)
5977 return klass->field.count;
5981 * mono_class_num_methods:
5982 * @klass: the MonoClass to act on
5984 * Returns: the number of methods in the class.
5987 mono_class_num_methods (MonoClass *klass)
5989 return klass->method.count;
5993 * mono_class_num_properties
5994 * @klass: the MonoClass to act on
5996 * Returns: the number of properties in the class.
5999 mono_class_num_properties (MonoClass *klass)
6001 mono_class_setup_properties (klass);
6003 return klass->property.count;
6007 * mono_class_num_events:
6008 * @klass: the MonoClass to act on
6010 * Returns: the number of events in the class.
6013 mono_class_num_events (MonoClass *klass)
6015 mono_class_setup_events (klass);
6017 return klass->event.count;
6021 * mono_class_get_fields:
6022 * @klass: the MonoClass to act on
6024 * This routine is an iterator routine for retrieving the fields in a class.
6026 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6027 * iterate over all of the elements. When no more values are
6028 * available, the return value is NULL.
6030 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6033 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6035 MonoClassField* field;
6038 mono_class_setup_fields_locking (klass);
6040 /* start from the first */
6041 if (klass->field.count) {
6042 return *iter = &klass->fields [0];
6050 if (field < &klass->fields [klass->field.count]) {
6051 return *iter = field;
6057 * mono_class_get_methods
6058 * @klass: the MonoClass to act on
6060 * This routine is an iterator routine for retrieving the fields in a class.
6062 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6063 * iterate over all of the elements. When no more values are
6064 * available, the return value is NULL.
6066 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6069 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6071 MonoMethod** method;
6075 mono_class_init (klass);
6077 mono_class_setup_methods (klass);
6078 /* start from the first */
6079 if (klass->method.count) {
6080 *iter = &klass->methods [0];
6081 return klass->methods [0];
6089 if (method < &klass->methods [klass->method.count]) {
6097 * mono_class_get_properties:
6098 * @klass: the MonoClass to act on
6100 * This routine is an iterator routine for retrieving the properties in a class.
6102 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6103 * iterate over all of the elements. When no more values are
6104 * available, the return value is NULL.
6106 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6109 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6111 MonoProperty* property;
6115 mono_class_init (klass);
6117 mono_class_setup_properties (klass);
6118 /* start from the first */
6119 if (klass->property.count) {
6120 return *iter = &klass->properties [0];
6128 if (property < &klass->properties [klass->property.count]) {
6129 return *iter = property;
6135 * mono_class_get_events:
6136 * @klass: the MonoClass to act on
6138 * This routine is an iterator routine for retrieving the properties in a class.
6140 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6141 * iterate over all of the elements. When no more values are
6142 * available, the return value is NULL.
6144 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6147 mono_class_get_events (MonoClass* klass, gpointer *iter)
6153 mono_class_init (klass);
6155 mono_class_setup_events (klass);
6156 /* start from the first */
6157 if (klass->event.count) {
6158 return *iter = &klass->events [0];
6166 if (event < &klass->events [klass->event.count]) {
6167 return *iter = event;
6173 * mono_class_get_interfaces
6174 * @klass: the MonoClass to act on
6176 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6178 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6179 * iterate over all of the elements. When no more values are
6180 * available, the return value is NULL.
6182 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6185 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6191 mono_class_init (klass);
6193 /* start from the first */
6194 if (klass->interface_count) {
6195 *iter = &klass->interfaces [0];
6196 return klass->interfaces [0];
6204 if (iface < &klass->interfaces [klass->interface_count]) {
6212 * mono_class_get_nested_types
6213 * @klass: the MonoClass to act on
6215 * This routine is an iterator routine for retrieving the nested types of a class.
6216 * This works only if @klass is non-generic, or a generic type definition.
6218 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6219 * iterate over all of the elements. When no more values are
6220 * available, the return value is NULL.
6222 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6225 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6231 mono_class_init (klass);
6233 /* start from the first */
6234 if (klass->nested_classes) {
6235 *iter = klass->nested_classes;
6236 return klass->nested_classes->data;
6238 /* no nested types */
6252 * mono_field_get_name:
6253 * @field: the MonoClassField to act on
6255 * Returns: the name of the field.
6258 mono_field_get_name (MonoClassField *field)
6264 * mono_field_get_type:
6265 * @field: the MonoClassField to act on
6267 * Returns: MonoType of the field.
6270 mono_field_get_type (MonoClassField *field)
6276 * mono_field_get_type:
6277 * @field: the MonoClassField to act on
6279 * Returns: MonoClass where the field was defined.
6282 mono_field_get_parent (MonoClassField *field)
6284 return field->parent;
6288 * mono_field_get_flags;
6289 * @field: the MonoClassField to act on
6291 * The metadata flags for a field are encoded using the
6292 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6294 * Returns: the flags for the field.
6297 mono_field_get_flags (MonoClassField *field)
6299 return field->type->attrs;
6303 * mono_field_get_offset;
6304 * @field: the MonoClassField to act on
6306 * Returns: the field offset.
6309 mono_field_get_offset (MonoClassField *field)
6311 return field->offset;
6315 * mono_field_get_data;
6316 * @field: the MonoClassField to act on
6318 * Returns: pointer to the metadata constant value or to the field
6319 * data if it has an RVA flag.
6322 mono_field_get_data (MonoClassField *field)
6328 * mono_property_get_name:
6329 * @prop: the MonoProperty to act on
6331 * Returns: the name of the property
6334 mono_property_get_name (MonoProperty *prop)
6340 * mono_property_get_set_method
6341 * @prop: the MonoProperty to act on.
6343 * Returns: the setter method of the property (A MonoMethod)
6346 mono_property_get_set_method (MonoProperty *prop)
6352 * mono_property_get_get_method
6353 * @prop: the MonoProperty to act on.
6355 * Returns: the setter method of the property (A MonoMethod)
6358 mono_property_get_get_method (MonoProperty *prop)
6364 * mono_property_get_parent:
6365 * @prop: the MonoProperty to act on.
6367 * Returns: the MonoClass where the property was defined.
6370 mono_property_get_parent (MonoProperty *prop)
6372 return prop->parent;
6376 * mono_property_get_flags:
6377 * @prop: the MonoProperty to act on.
6379 * The metadata flags for a property are encoded using the
6380 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6382 * Returns: the flags for the property.
6385 mono_property_get_flags (MonoProperty *prop)
6391 * mono_event_get_name:
6392 * @event: the MonoEvent to act on
6394 * Returns: the name of the event.
6397 mono_event_get_name (MonoEvent *event)
6403 * mono_event_get_add_method:
6404 * @event: The MonoEvent to act on.
6406 * Returns: the @add' method for the event (a MonoMethod).
6409 mono_event_get_add_method (MonoEvent *event)
6415 * mono_event_get_remove_method:
6416 * @event: The MonoEvent to act on.
6418 * Returns: the @remove method for the event (a MonoMethod).
6421 mono_event_get_remove_method (MonoEvent *event)
6423 return event->remove;
6427 * mono_event_get_raise_method:
6428 * @event: The MonoEvent to act on.
6430 * Returns: the @raise method for the event (a MonoMethod).
6433 mono_event_get_raise_method (MonoEvent *event)
6435 return event->raise;
6439 * mono_event_get_parent:
6440 * @event: the MonoEvent to act on.
6442 * Returns: the MonoClass where the event is defined.
6445 mono_event_get_parent (MonoEvent *event)
6447 return event->parent;
6451 * mono_event_get_flags
6452 * @event: the MonoEvent to act on.
6454 * The metadata flags for an event are encoded using the
6455 * EVENT_* constants. See the tabledefs.h file for details.
6457 * Returns: the flags for the event.
6460 mono_event_get_flags (MonoEvent *event)
6462 return event->attrs;
6466 * mono_class_get_method_from_name:
6467 * @klass: where to look for the method
6468 * @name_space: name of the method
6469 * @param_count: number of parameters. -1 for any number.
6471 * Obtains a MonoMethod with a given name and number of parameters.
6472 * It only works if there are no multiple signatures for any given method name.
6475 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
6477 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
6481 * mono_class_get_method_from_name_flags:
6482 * @klass: where to look for the method
6483 * @name_space: name of the method
6484 * @param_count: number of parameters. -1 for any number.
6485 * @flags: flags which must be set in the method
6487 * Obtains a MonoMethod with a given name and number of parameters.
6488 * It only works if there are no multiple signatures for any given method name.
6491 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
6493 MonoMethod *res = NULL;
6496 mono_class_init (klass);
6498 if (klass->methods) {
6499 mono_class_setup_methods (klass);
6500 for (i = 0; i < klass->method.count; ++i) {
6501 MonoMethod *method = klass->methods [i];
6503 if (method->name[0] == name [0] &&
6504 !strcmp (name, method->name) &&
6505 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
6506 ((method->flags & flags) == flags)) {
6513 /* Search directly in the metadata to avoid calling setup_methods () */
6514 for (i = 0; i < klass->method.count; ++i) {
6515 guint32 cols [MONO_METHOD_SIZE];
6518 /* class->method.first points into the methodptr table */
6519 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6521 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
6522 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6523 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
6535 * mono_class_set_failure:
6536 * @klass: class in which the failure was detected
6537 * @ex_type: the kind of exception/error to be thrown (later)
6538 * @ex_data: exception data (specific to each type of exception/error)
6540 * Keep a detected failure informations in the class for later processing.
6541 * Note that only the first failure is kept.
6544 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
6546 if (klass->exception_type)
6548 klass->exception_type = ex_type;
6549 klass->exception_data = ex_data;
6554 * mono_classes_init:
6556 * Initialize the resources used by this module.
6559 mono_classes_init (void)
6564 * mono_classes_cleanup:
6566 * Free the resources used by this module.
6569 mono_classes_cleanup (void)
6571 IOffsetInfo *cached_info, *next;
6573 if (global_interface_bitset)
6574 mono_bitset_free (global_interface_bitset);
6576 for (cached_info = cached_offset_info; cached_info;) {
6577 next = cached_info->next;
6579 g_free (cached_info);
6585 * mono_class_get_exception_for_failure:
6586 * @klass: class in which the failure was detected
6588 * Return a constructed MonoException than the caller can then throw
6589 * using mono_raise_exception - or NULL if no failure is present (or
6590 * doesn't result in an exception).
6593 mono_class_get_exception_for_failure (MonoClass *klass)
6595 switch (klass->exception_type) {
6596 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
6597 MonoDomain *domain = mono_domain_get ();
6598 MonoSecurityManager* secman = mono_security_manager_get_methods ();
6599 MonoMethod *method = klass->exception_data;
6600 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
6601 MonoObject *exc = NULL;
6605 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
6606 args [2] = mono_type_get_object (domain, &klass->byval_arg);
6607 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
6609 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
6610 return (MonoException*) exc;
6612 case MONO_EXCEPTION_TYPE_LOAD: {
6615 char *str = mono_type_get_full_name (klass);
6616 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
6617 name = mono_string_new (mono_domain_get (), str);
6619 ex = mono_get_exception_type_load (name, astr);
6623 case MONO_EXCEPTION_MISSING_METHOD: {
6624 char *class_name = klass->exception_data;
6625 char *assembly_name = class_name + strlen (class_name) + 1;
6627 return mono_get_exception_missing_method (class_name, assembly_name);
6629 case MONO_EXCEPTION_MISSING_FIELD: {
6630 char *class_name = klass->exception_data;
6631 char *member_name = class_name + strlen (class_name) + 1;
6633 return mono_get_exception_missing_field (class_name, member_name);
6635 case MONO_EXCEPTION_FILE_NOT_FOUND: {
6636 char *msg_format = klass->exception_data;
6637 char *assembly_name = msg_format + strlen (msg_format) + 1;
6638 char *msg = g_strdup_printf (msg_format, assembly_name);
6641 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
6647 case MONO_EXCEPTION_BAD_IMAGE: {
6648 return mono_get_exception_bad_image_format (klass->exception_data);
6651 MonoLoaderError *error;
6654 error = mono_loader_get_last_error ();
6656 ex = mono_loader_error_prepare_exception (error);
6660 /* TODO - handle other class related failures */
6667 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
6670 if (accessing == accessed)
6672 if (!accessed || !accessing)
6674 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
6675 MonoAssemblyName *friend = tmp->data;
6676 /* Be conservative with checks */
6679 if (strcmp (accessing->aname.name, friend->name))
6681 if (friend->public_key_token [0]) {
6682 if (!accessing->aname.public_key_token [0])
6684 if (strcmp ((char*)friend->public_key_token, (char*)accessing->aname.public_key_token))
6693 * If klass is a generic type or if it is derived from a generic type, return the
6694 * MonoClass of the generic definition
6695 * Returns NULL if not found
6698 get_generic_definition_class (MonoClass *klass)
6701 if (klass->generic_class && klass->generic_class->container_class)
6702 return klass->generic_class->container_class;
6703 klass = klass->parent;
6708 /* FIXME: check visibility of type, too */
6710 can_access_member (MonoClass *access_klass, MonoClass *member_klass, int access_level)
6712 MonoClass *member_generic_def;
6713 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
6714 access_klass->generic_container) &&
6715 (member_generic_def = get_generic_definition_class (member_klass))) {
6716 MonoClass *access_container;
6718 if (access_klass->generic_container)
6719 access_container = access_klass;
6721 access_container = access_klass->generic_class->container_class;
6723 if (can_access_member (access_container, member_generic_def, access_level))
6727 /* Partition I 8.5.3.2 */
6728 /* the access level values are the same for fields and methods */
6729 switch (access_level) {
6730 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
6731 /* same compilation unit */
6732 return access_klass->image == member_klass->image;
6733 case FIELD_ATTRIBUTE_PRIVATE:
6734 return access_klass == member_klass;
6735 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
6736 if (mono_class_has_parent (access_klass, member_klass) &&
6737 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
6740 case FIELD_ATTRIBUTE_ASSEMBLY:
6741 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
6742 case FIELD_ATTRIBUTE_FAMILY:
6743 if (mono_class_has_parent (access_klass, member_klass))
6746 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
6747 if (mono_class_has_parent (access_klass, member_klass))
6749 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
6750 case FIELD_ATTRIBUTE_PUBLIC:
6757 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
6759 /* FIXME: check all overlapping fields */
6760 int can = can_access_member (method->klass, field->parent, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
6762 MonoClass *nested = method->klass->nested_in;
6764 can = can_access_member (nested, field->parent, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
6767 nested = nested->nested_in;
6774 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
6776 int can = can_access_member (method->klass, called->klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
6778 MonoClass *nested = method->klass->nested_in;
6780 can = can_access_member (nested, called->klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
6783 nested = nested->nested_in;
6788 * with generics calls to explicit interface implementations can be expressed
6789 * directly: the method is private, but we must allow it. This may be opening
6790 * a hole or the generics code should handle this differently.
6791 * Maybe just ensure the interface type is public.
6793 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
6799 * mono_type_is_valid_enum_basetype:
6800 * @type: The MonoType to check
6802 * Returns: TRUE if the type can be used as the basetype of an enum
6804 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
6805 switch (type->type) {
6808 case MONO_TYPE_BOOLEAN:
6811 case MONO_TYPE_CHAR:
6824 * mono_class_is_valid_enum:
6825 * @klass: An enum class to be validated
6827 * This method verify the required properties an enum should have.
6829 * Returns: TRUE if the informed enum class is valid
6831 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
6832 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
6833 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
6835 gboolean mono_class_is_valid_enum (MonoClass *klass) {
6836 MonoClassField * field;
6837 gpointer iter = NULL;
6838 gboolean found_base_field = FALSE;
6840 g_assert (klass->enumtype);
6841 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
6842 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
6846 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
6849 while ((field = mono_class_get_fields (klass, &iter))) {
6850 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
6851 if (found_base_field)
6853 found_base_field = TRUE;
6854 if (!mono_type_is_valid_enum_basetype (field->type))
6859 if (!found_base_field)
6862 if (klass->method.count > 0)
6869 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
6871 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
6875 * mono_class_generic_sharing_enabled:
6878 * Returns whether generic sharing is enabled for class.
6880 * This is a stop-gap measure to slowly introduce generic sharing
6881 * until we have all the issues sorted out, at which time this
6882 * function will disappear and generic sharing will always be enabled.
6885 mono_class_generic_sharing_enabled (MonoClass *class)
6887 static int generic_sharing = MONO_GENERIC_SHARING_CORLIB;
6888 static gboolean inited = FALSE;
6893 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
6894 if (strcmp (option, "corlib") == 0)
6895 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
6896 else if (strcmp (option, "all") == 0)
6897 generic_sharing = MONO_GENERIC_SHARING_ALL;
6898 else if (strcmp (option, "none") == 0)
6899 generic_sharing = MONO_GENERIC_SHARING_NONE;
6901 g_warning ("Unknown generic sharing option `%s'.", option);
6907 switch (generic_sharing) {
6908 case MONO_GENERIC_SHARING_NONE:
6910 case MONO_GENERIC_SHARING_ALL:
6912 case MONO_GENERIC_SHARING_CORLIB :
6913 return class->image == mono_defaults.corlib;
6915 g_assert_not_reached ();