2 * class.c: Class management for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
7 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2012 Xamarin Inc (http://www.xamarin.com)
20 #include <mono/io-layer/atomic.h>
22 #include <mono/metadata/image.h>
23 #include <mono/metadata/assembly.h>
24 #include <mono/metadata/metadata.h>
25 #include <mono/metadata/metadata-internals.h>
26 #include <mono/metadata/profiler-private.h>
27 #include <mono/metadata/tabledefs.h>
28 #include <mono/metadata/tokentype.h>
29 #include <mono/metadata/class-internals.h>
30 #include <mono/metadata/object.h>
31 #include <mono/metadata/appdomain.h>
32 #include <mono/metadata/mono-endian.h>
33 #include <mono/metadata/debug-helpers.h>
34 #include <mono/metadata/reflection.h>
35 #include <mono/metadata/exception.h>
36 #include <mono/metadata/security-manager.h>
37 #include <mono/metadata/security-core-clr.h>
38 #include <mono/metadata/attrdefs.h>
39 #include <mono/metadata/gc-internal.h>
40 #include <mono/metadata/verify-internals.h>
41 #include <mono/metadata/mono-debug.h>
42 #include <mono/utils/mono-counters.h>
43 #include <mono/utils/mono-string.h>
44 #include <mono/utils/mono-error-internals.h>
45 #include <mono/utils/mono-logger-internal.h>
46 #include <mono/utils/mono-memory-model.h>
49 gboolean mono_print_vtable = FALSE;
52 guint32 inflated_classes, inflated_classes_size, inflated_methods_size;
53 guint32 classes_size, class_ext_size;
55 /* Function supplied by the runtime to find classes by name using information from the AOT file */
56 static MonoGetClassFromName get_class_from_name = NULL;
58 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
59 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
60 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
61 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
62 static int generic_array_methods (MonoClass *class);
63 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
65 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
66 static char* mono_assembly_name_from_token (MonoImage *image, guint32 type_token);
67 static void mono_field_resolve_type (MonoClassField *field, MonoError *error);
68 static guint32 mono_field_resolve_flags (MonoClassField *field);
69 static void mono_class_setup_vtable_full (MonoClass *class, GList *in_setup);
72 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
73 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
76 * mono_class_from_typeref:
78 * @type_token: a TypeRef token
80 * Creates the MonoClass* structure representing the type defined by
81 * the typeref token valid inside @image.
82 * Returns: the MonoClass* representing the typeref token, NULL ifcould
86 mono_class_from_typeref (MonoImage *image, guint32 type_token)
89 guint32 cols [MONO_TYPEREF_SIZE];
90 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
92 const char *name, *nspace;
96 if (!mono_verifier_verify_typeref_row (image, (type_token & 0xffffff) - 1, &error)) {
97 mono_trace_warning (MONO_TRACE_TYPE, "Failed to resolve typeref from %s due to '%s'", image->name, mono_error_get_message (&error));
101 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
103 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
104 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
106 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
107 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
108 case MONO_RESOLTION_SCOPE_MODULE:
110 g_error ("null ResolutionScope not yet handled");
111 /* a typedef in disguise */
112 return mono_class_from_name (image, nspace, name);
113 case MONO_RESOLTION_SCOPE_MODULEREF:
114 module = mono_image_load_module (image, idx);
116 return mono_class_from_name (module, nspace, name);
118 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
121 human_name = mono_stringify_assembly_name (&image->assembly->aname);
122 mono_loader_set_error_type_load (msg, human_name);
128 case MONO_RESOLTION_SCOPE_TYPEREF: {
129 MonoClass *enclosing;
132 if (idx == mono_metadata_token_index (type_token)) {
133 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with self-referencing typeref token %08x.", image->name, type_token));
137 enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
141 if (enclosing->nested_classes_inited && enclosing->ext) {
142 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
143 for (tmp = enclosing->ext->nested_classes; tmp; tmp = tmp->next) {
145 if (strcmp (res->name, name) == 0)
149 /* Don't call mono_class_init as we might've been called by it recursively */
150 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
152 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
153 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
154 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
156 if (strcmp (nname, name) == 0)
157 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
159 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
162 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
165 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
169 if (idx > image->tables [MONO_TABLE_ASSEMBLYREF].rows) {
170 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with invalid assemblyref token %08x.", image->name, idx));
174 if (!image->references || !image->references [idx - 1])
175 mono_assembly_load_reference (image, idx - 1);
176 g_assert (image->references [idx - 1]);
178 /* If the assembly did not load, register this as a type load exception */
179 if (image->references [idx - 1] == REFERENCE_MISSING){
180 MonoAssemblyName aname;
183 mono_assembly_get_assemblyref (image, idx - 1, &aname);
184 human_name = mono_stringify_assembly_name (&aname);
185 mono_loader_set_error_assembly_load (human_name, image->assembly ? image->assembly->ref_only : FALSE);
191 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
196 mono_image_memdup (MonoImage *image, void *data, guint size)
198 void *res = mono_image_alloc (image, size);
199 memcpy (res, data, size);
203 /* Copy everything mono_metadata_free_array free. */
205 mono_dup_array_type (MonoImage *image, MonoArrayType *a)
208 a = mono_image_memdup (image, a, sizeof (MonoArrayType));
210 a->sizes = mono_image_memdup (image, a->sizes, a->numsizes * sizeof (int));
212 a->lobounds = mono_image_memdup (image, a->lobounds, a->numlobounds * sizeof (int));
214 a = g_memdup (a, sizeof (MonoArrayType));
216 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
218 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
223 /* Copy everything mono_metadata_free_method_signature free. */
225 mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig)
229 sig = mono_metadata_signature_dup_full (image, sig);
231 sig->ret = mono_metadata_type_dup (image, sig->ret);
232 for (i = 0; i < sig->param_count; ++i)
233 sig->params [i] = mono_metadata_type_dup (image, sig->params [i]);
239 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
241 MonoAssembly *ta = klass->image->assembly;
244 name = mono_stringify_assembly_name (&ta->aname);
245 g_string_append_printf (str, ", %s", name);
250 mono_type_name_check_byref (MonoType *type, GString *str)
253 g_string_append_c (str, '&');
257 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
258 MonoTypeNameFormat format)
262 switch (type->type) {
263 case MONO_TYPE_ARRAY: {
264 int i, rank = type->data.array->rank;
265 MonoTypeNameFormat nested_format;
267 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
268 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
270 mono_type_get_name_recurse (
271 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
272 g_string_append_c (str, '[');
274 g_string_append_c (str, '*');
275 for (i = 1; i < rank; i++)
276 g_string_append_c (str, ',');
277 g_string_append_c (str, ']');
279 mono_type_name_check_byref (type, str);
281 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
282 _mono_type_get_assembly_name (type->data.array->eklass, str);
285 case MONO_TYPE_SZARRAY: {
286 MonoTypeNameFormat nested_format;
288 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
289 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
291 mono_type_get_name_recurse (
292 &type->data.klass->byval_arg, str, FALSE, nested_format);
293 g_string_append (str, "[]");
295 mono_type_name_check_byref (type, str);
297 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
298 _mono_type_get_assembly_name (type->data.klass, str);
301 case MONO_TYPE_PTR: {
302 MonoTypeNameFormat nested_format;
304 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
305 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
307 mono_type_get_name_recurse (
308 type->data.type, str, FALSE, nested_format);
309 g_string_append_c (str, '*');
311 mono_type_name_check_byref (type, str);
313 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
314 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
319 if (!mono_generic_param_info (type->data.generic_param))
320 g_string_append_printf (str, "%s%d", type->type == MONO_TYPE_VAR ? "!" : "!!", type->data.generic_param->num);
322 g_string_append (str, mono_generic_param_info (type->data.generic_param)->name);
324 mono_type_name_check_byref (type, str);
328 klass = mono_class_from_mono_type (type);
329 if (klass->nested_in) {
330 mono_type_get_name_recurse (
331 &klass->nested_in->byval_arg, str, TRUE, format);
332 if (format == MONO_TYPE_NAME_FORMAT_IL)
333 g_string_append_c (str, '.');
335 g_string_append_c (str, '+');
336 } else if (*klass->name_space) {
337 g_string_append (str, klass->name_space);
338 g_string_append_c (str, '.');
340 if (format == MONO_TYPE_NAME_FORMAT_IL) {
341 char *s = strchr (klass->name, '`');
342 int len = s ? s - klass->name : strlen (klass->name);
344 g_string_append_len (str, klass->name, len);
346 g_string_append (str, klass->name);
349 if (klass->generic_class) {
350 MonoGenericClass *gclass = klass->generic_class;
351 MonoGenericInst *inst = gclass->context.class_inst;
352 MonoTypeNameFormat nested_format;
355 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
356 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
358 if (format == MONO_TYPE_NAME_FORMAT_IL)
359 g_string_append_c (str, '<');
361 g_string_append_c (str, '[');
362 for (i = 0; i < inst->type_argc; i++) {
363 MonoType *t = inst->type_argv [i];
366 g_string_append_c (str, ',');
367 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
368 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
369 g_string_append_c (str, '[');
370 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
371 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
372 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
373 g_string_append_c (str, ']');
375 if (format == MONO_TYPE_NAME_FORMAT_IL)
376 g_string_append_c (str, '>');
378 g_string_append_c (str, ']');
379 } else if (klass->generic_container &&
380 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
381 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
384 if (format == MONO_TYPE_NAME_FORMAT_IL)
385 g_string_append_c (str, '<');
387 g_string_append_c (str, '[');
388 for (i = 0; i < klass->generic_container->type_argc; i++) {
390 g_string_append_c (str, ',');
391 g_string_append (str, mono_generic_container_get_param_info (klass->generic_container, i)->name);
393 if (format == MONO_TYPE_NAME_FORMAT_IL)
394 g_string_append_c (str, '>');
396 g_string_append_c (str, ']');
399 mono_type_name_check_byref (type, str);
401 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
402 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
403 _mono_type_get_assembly_name (klass, str);
409 * mono_type_get_name_full:
411 * @format: the format for the return string.
414 * Returns: the string representation in a number of formats:
416 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
417 * returned in the formatrequired by System.Reflection, this is the
418 * inverse of mono_reflection_parse_type ().
420 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
421 * be used by the IL assembler.
423 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
425 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
428 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
432 result = g_string_new ("");
434 mono_type_get_name_recurse (type, result, FALSE, format);
436 return g_string_free (result, FALSE);
440 * mono_type_get_full_name:
443 * Returns: the string representation for type as required by System.Reflection.
444 * The inverse of mono_reflection_parse_type ().
447 mono_type_get_full_name (MonoClass *class)
449 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
453 * mono_type_get_name:
456 * Returns: the string representation for type as it would be represented in IL code.
459 mono_type_get_name (MonoType *type)
461 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
465 * mono_type_get_underlying_type:
468 * Returns: the MonoType for the underlying integer type if @type
469 * is an enum and byref is false, otherwise the type itself.
472 mono_type_get_underlying_type (MonoType *type)
474 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
475 return mono_class_enum_basetype (type->data.klass);
476 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
477 return mono_class_enum_basetype (type->data.generic_class->container_class);
482 * mono_class_is_open_constructed_type:
485 * Returns TRUE if type represents a generics open constructed type.
486 * IOW, not all type parameters required for the instantiation have
487 * been provided or it's a generic type definition.
489 * An open constructed type means it's a non realizable type. Not to
490 * be mixed up with an abstract type - we can't cast or dispatch to
491 * an open type, for example.
494 mono_class_is_open_constructed_type (MonoType *t)
500 case MONO_TYPE_SZARRAY:
501 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
502 case MONO_TYPE_ARRAY:
503 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
505 return mono_class_is_open_constructed_type (t->data.type);
506 case MONO_TYPE_GENERICINST:
507 return t->data.generic_class->context.class_inst->is_open;
508 case MONO_TYPE_CLASS:
509 case MONO_TYPE_VALUETYPE:
510 return t->data.klass->generic_container != NULL;
517 inflate_generic_type (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
519 mono_error_init (error);
521 switch (type->type) {
522 case MONO_TYPE_MVAR: {
524 int num = mono_type_get_generic_param_num (type);
525 MonoGenericInst *inst = context->method_inst;
526 if (!inst || !inst->type_argv)
528 if (num >= inst->type_argc) {
529 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
530 mono_error_set_bad_image (error, image, "MVAR %d (%s) cannot be expanded in this context with %d instantiations",
531 num, info ? info->name : "", inst->type_argc);
536 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
537 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
538 * ->byref and ->attrs from @type are propagated to the returned type.
540 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
541 nt->byref = type->byref;
542 nt->attrs = type->attrs;
545 case MONO_TYPE_VAR: {
547 int num = mono_type_get_generic_param_num (type);
548 MonoGenericInst *inst = context->class_inst;
551 if (num >= inst->type_argc) {
552 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
553 mono_error_set_bad_image (error, image, "VAR %d (%s) cannot be expanded in this context with %d instantiations",
554 num, info ? info->name : "", inst->type_argc);
557 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
558 nt->byref = type->byref;
559 nt->attrs = type->attrs;
562 case MONO_TYPE_SZARRAY: {
563 MonoClass *eclass = type->data.klass;
564 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
565 if (!inflated || !mono_error_ok (error))
567 nt = mono_metadata_type_dup (image, type);
568 nt->data.klass = mono_class_from_mono_type (inflated);
569 mono_metadata_free_type (inflated);
572 case MONO_TYPE_ARRAY: {
573 MonoClass *eclass = type->data.array->eklass;
574 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
575 if (!inflated || !mono_error_ok (error))
577 nt = mono_metadata_type_dup (image, type);
578 nt->data.array->eklass = mono_class_from_mono_type (inflated);
579 mono_metadata_free_type (inflated);
582 case MONO_TYPE_GENERICINST: {
583 MonoGenericClass *gclass = type->data.generic_class;
584 MonoGenericInst *inst;
586 if (!gclass->context.class_inst->is_open)
589 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context, error);
590 if (!mono_error_ok (error))
592 if (inst != gclass->context.class_inst)
593 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
595 if (gclass == type->data.generic_class)
598 nt = mono_metadata_type_dup (image, type);
599 nt->data.generic_class = gclass;
602 case MONO_TYPE_CLASS:
603 case MONO_TYPE_VALUETYPE: {
604 MonoClass *klass = type->data.klass;
605 MonoGenericContainer *container = klass->generic_container;
606 MonoGenericInst *inst;
607 MonoGenericClass *gclass = NULL;
613 /* We can't use context->class_inst directly, since it can have more elements */
614 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context, error);
615 if (!mono_error_ok (error))
617 if (inst == container->context.class_inst)
620 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
622 nt = mono_metadata_type_dup (image, type);
623 nt->type = MONO_TYPE_GENERICINST;
624 nt->data.generic_class = gclass;
634 mono_generic_class_get_context (MonoGenericClass *gclass)
636 return &gclass->context;
640 mono_class_get_context (MonoClass *class)
642 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
646 * mono_class_get_generic_container:
648 * Return the generic container of KLASS which should be a generic type definition.
650 MonoGenericContainer*
651 mono_class_get_generic_container (MonoClass *klass)
653 g_assert (klass->is_generic);
655 return klass->generic_container;
659 * mono_class_get_generic_class:
661 * Return the MonoGenericClass of KLASS, which should be a generic instance.
664 mono_class_get_generic_class (MonoClass *klass)
666 g_assert (klass->is_inflated);
668 return klass->generic_class;
672 * mono_class_inflate_generic_type_with_mempool:
673 * @mempool: a mempool
675 * @context: a generics context
676 * @error: error context
678 * The same as mono_class_inflate_generic_type, but allocates the MonoType
679 * from mempool if it is non-NULL. If it is NULL, the MonoType is
680 * allocated on the heap and is owned by the caller.
681 * The returned type can potentially be the same as TYPE, so it should not be
682 * modified by the caller, and it should be freed using mono_metadata_free_type ().
685 mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
687 MonoType *inflated = NULL;
688 mono_error_init (error);
691 inflated = inflate_generic_type (image, type, context, error);
692 if (!mono_error_ok (error))
696 MonoType *shared = mono_metadata_get_shared_type (type);
701 return mono_metadata_type_dup (image, type);
705 mono_stats.inflated_type_count++;
710 * mono_class_inflate_generic_type:
712 * @context: a generics context
714 * If @type is a generic type and @context is not NULL, instantiate it using the
715 * generics context @context.
717 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
718 * on the heap and is owned by the caller. Returns NULL on error.
720 * @deprecated Please use mono_class_inflate_generic_type_checked instead
723 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
727 result = mono_class_inflate_generic_type_checked (type, context, &error);
729 if (!mono_error_ok (&error)) {
730 mono_error_cleanup (&error);
737 * mono_class_inflate_generic_type:
739 * @context: a generics context
740 * @error: error context to use
742 * If @type is a generic type and @context is not NULL, instantiate it using the
743 * generics context @context.
745 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
746 * on the heap and is owned by the caller.
749 mono_class_inflate_generic_type_checked (MonoType *type, MonoGenericContext *context, MonoError *error)
751 return mono_class_inflate_generic_type_with_mempool (NULL, type, context, error);
755 * mono_class_inflate_generic_type_no_copy:
757 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
761 mono_class_inflate_generic_type_no_copy (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
763 MonoType *inflated = NULL;
765 mono_error_init (error);
767 inflated = inflate_generic_type (image, type, context, error);
768 if (!mono_error_ok (error))
775 mono_stats.inflated_type_count++;
780 mono_class_inflate_generic_class_checked (MonoClass *gklass, MonoGenericContext *context, MonoError *error)
785 inflated = mono_class_inflate_generic_type_checked (&gklass->byval_arg, context, error);
786 if (!mono_error_ok (error))
789 res = mono_class_from_mono_type (inflated);
790 mono_metadata_free_type (inflated);
795 * mono_class_inflate_generic_class:
797 * Inflate the class GKLASS with CONTEXT.
800 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
805 res = mono_class_inflate_generic_class_checked (gklass, context, &error);
806 g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
813 static MonoGenericContext
814 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with, MonoError *error)
816 MonoGenericInst *class_inst = NULL;
817 MonoGenericInst *method_inst = NULL;
818 MonoGenericContext res = { NULL, NULL };
820 mono_error_init (error);
822 if (context->class_inst) {
823 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with, error);
824 if (!mono_error_ok (error))
828 if (context->method_inst) {
829 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with, error);
830 if (!mono_error_ok (error))
834 res.class_inst = class_inst;
835 res.method_inst = method_inst;
841 * mono_class_inflate_generic_method:
842 * @method: a generic method
843 * @context: a generics context
845 * Instantiate the generic method @method using the generics context @context.
847 * Returns: the new instantiated method
850 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
852 return mono_class_inflate_generic_method_full (method, NULL, context);
856 * mono_class_inflate_generic_method_full:
858 * Instantiate method @method with the generic context @context.
859 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
860 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
863 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
866 MonoMethod *res = mono_class_inflate_generic_method_full_checked (method, klass_hint, context, &error);
867 if (!mono_error_ok (&error))
868 /*FIXME do proper error handling - on this case, kill this function. */
869 g_error ("Could not inflate generic method due to %s", mono_error_get_message (&error));
875 * mono_class_inflate_generic_method_full_checked:
876 * Same as mono_class_inflate_generic_method_full but return failure using @error.
879 mono_class_inflate_generic_method_full_checked (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context, MonoError *error)
882 MonoMethodInflated *iresult, *cached;
883 MonoMethodSignature *sig;
884 MonoGenericContext tmp_context;
885 gboolean is_mb_open = FALSE;
887 mono_error_init (error);
889 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
890 while (method->is_inflated) {
891 MonoGenericContext *method_context = mono_method_get_context (method);
892 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
894 tmp_context = inflate_generic_context (method_context, context, error);
895 if (!mono_error_ok (error))
897 context = &tmp_context;
899 if (mono_metadata_generic_context_equal (method_context, context))
902 method = imethod->declaring;
906 * A method only needs to be inflated if the context has argument for which it is
909 * class Foo<T> { void Bar(); } - doesn't need to be inflated if only mvars' are supplied
910 * class Foo { void Bar<T> (); } - doesn't need to be if only vars' are supplied
913 if (!((method->is_generic && context->method_inst) ||
914 (method->klass->generic_container && context->class_inst)))
918 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
919 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
920 * This is opposite to the way non-SRE MethodInfos behave.
922 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
924 * void Example<T> () {
928 * In Example, the method token must be encoded as: "void Example<!!0>()"
930 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
931 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
933 * On the other hand, inflating a non-SRE generic method with its own arguments should
934 * return itself. For example:
936 * MethodInfo m = ... //m is a generic method definition
937 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
940 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
941 * what happens with regular methods.
943 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
944 * everything should behave like a regular type or method.
947 is_mb_open = method->is_generic &&
948 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
949 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
951 iresult = g_new0 (MonoMethodInflated, 1);
952 iresult->context = *context;
953 iresult->declaring = method;
954 iresult->method.method.is_mb_open = is_mb_open;
956 if (!context->method_inst && method->is_generic)
957 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
959 if (!context->class_inst) {
960 g_assert (!iresult->declaring->klass->generic_class);
961 if (iresult->declaring->klass->generic_container)
962 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
963 else if (iresult->declaring->klass->generic_class)
964 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
968 cached = mono_method_inflated_lookup (iresult, FALSE);
970 mono_loader_unlock ();
972 return (MonoMethod*)cached;
975 mono_stats.inflated_method_count++;
977 inflated_methods_size += sizeof (MonoMethodInflated);
979 sig = mono_method_signature (method);
981 char *name = mono_type_get_full_name (method->klass);
982 mono_error_set_bad_image (error, method->klass->image, "Could not resolve signature of method %s:%s", name, method->name);
988 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
990 memcpy (&iresult->method.method, method, sizeof (MonoMethod));
993 result = (MonoMethod *) iresult;
994 result->is_inflated = TRUE;
995 result->is_generic = FALSE;
996 result->sre_method = FALSE;
997 result->signature = NULL;
998 result->is_mb_open = is_mb_open;
1000 if (!context->method_inst) {
1001 /* Set the generic_container of the result to the generic_container of method */
1002 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
1004 if (generic_container) {
1005 result->is_generic = 1;
1006 mono_method_set_generic_container (result, generic_container);
1010 if (!klass_hint || !klass_hint->generic_class ||
1011 klass_hint->generic_class->container_class != method->klass ||
1012 klass_hint->generic_class->context.class_inst != context->class_inst)
1015 if (method->klass->generic_container)
1016 result->klass = klass_hint;
1018 if (!result->klass) {
1019 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context, error);
1020 if (!mono_error_ok (error))
1023 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
1025 mono_metadata_free_type (inflated);
1029 * FIXME: This should hold, but it doesn't:
1031 * if (result->is_inflated && mono_method_get_context (result)->method_inst &&
1032 * mono_method_get_context (result)->method_inst == mono_method_get_generic_container (((MonoMethodInflated*)result)->declaring)->context.method_inst) {
1033 * g_assert (result->is_generic);
1036 * Fixing this here causes other things to break, hence a very
1037 * ugly hack in mini-trampolines.c - see
1038 * is_generic_method_definition().
1041 mono_method_inflated_lookup (iresult, TRUE);
1042 mono_loader_unlock ();
1046 mono_loader_unlock ();
1052 * mono_get_inflated_method:
1054 * Obsolete. We keep it around since it's mentioned in the public API.
1057 mono_get_inflated_method (MonoMethod *method)
1063 * mono_method_get_context_general:
1065 * @uninflated: handle uninflated methods?
1067 * Returns the generic context of a method or NULL if it doesn't have
1068 * one. For an inflated method that's the context stored in the
1069 * method. Otherwise it's in the method's generic container or in the
1070 * generic container of the method's class.
1073 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
1075 if (method->is_inflated) {
1076 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1077 return &imethod->context;
1081 if (method->is_generic)
1082 return &(mono_method_get_generic_container (method)->context);
1083 if (method->klass->generic_container)
1084 return &method->klass->generic_container->context;
1089 * mono_method_get_context:
1092 * Returns the generic context for method if it's inflated, otherwise
1096 mono_method_get_context (MonoMethod *method)
1098 return mono_method_get_context_general (method, FALSE);
1102 * mono_method_get_generic_container:
1104 * Returns the generic container of METHOD, which should be a generic method definition.
1105 * Returns NULL if METHOD is not a generic method definition.
1106 * LOCKING: Acquires the loader lock.
1108 MonoGenericContainer*
1109 mono_method_get_generic_container (MonoMethod *method)
1111 MonoGenericContainer *container;
1113 if (!method->is_generic)
1116 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
1117 g_assert (container);
1123 * mono_method_set_generic_container:
1125 * Sets the generic container of METHOD to CONTAINER.
1126 * LOCKING: Acquires the loader lock.
1129 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
1131 g_assert (method->is_generic);
1133 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
1137 * mono_class_find_enum_basetype:
1138 * @class: The enum class
1140 * Determine the basetype of an enum by iterating through its fields. We do this
1141 * in a separate function since it is cheaper than calling mono_class_setup_fields.
1144 mono_class_find_enum_basetype (MonoClass *class)
1146 MonoGenericContainer *container = NULL;
1147 MonoImage *m = class->image;
1148 const int top = class->field.count;
1151 g_assert (class->enumtype);
1153 if (class->generic_container)
1154 container = class->generic_container;
1155 else if (class->generic_class) {
1156 MonoClass *gklass = class->generic_class->container_class;
1158 container = gklass->generic_container;
1159 g_assert (container);
1163 * Fetch all the field information.
1165 for (i = 0; i < top; i++){
1167 guint32 cols [MONO_FIELD_SIZE];
1168 int idx = class->field.first + i;
1171 /* class->field.first and idx points into the fieldptr table */
1172 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1174 if (cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC) //no need to decode static fields
1177 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL))
1180 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1181 mono_metadata_decode_value (sig, &sig);
1182 /* FIELD signature == 0x06 */
1186 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1189 if (class->generic_class) {
1190 //FIXME do we leak here?
1191 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1192 ftype->attrs = cols [MONO_FIELD_FLAGS];
1202 * Checks for MonoClass::exception_type without resolving all MonoType's into MonoClass'es
1205 mono_type_has_exceptions (MonoType *type)
1207 switch (type->type) {
1208 case MONO_TYPE_CLASS:
1209 case MONO_TYPE_VALUETYPE:
1210 case MONO_TYPE_SZARRAY:
1211 return type->data.klass->exception_type;
1212 case MONO_TYPE_ARRAY:
1213 return type->data.array->eklass->exception_type;
1214 case MONO_TYPE_GENERICINST:
1215 return mono_generic_class_get_class (type->data.generic_class)->exception_type;
1223 * Allocate memory for some data belonging to CLASS, either from its image's mempool,
1227 mono_class_alloc (MonoClass *class, int size)
1229 if (class->generic_class)
1230 return mono_image_set_alloc (class->generic_class->owner, size);
1232 return mono_image_alloc (class->image, size);
1236 mono_class_alloc0 (MonoClass *class, int size)
1240 res = mono_class_alloc (class, size);
1241 memset (res, 0, size);
1245 #define mono_class_new0(class,struct_type, n_structs) \
1246 ((struct_type *) mono_class_alloc0 ((class), ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
1249 * mono_class_setup_basic_field_info:
1250 * @class: The class to initialize
1252 * Initializes the class->fields.
1253 * LOCKING: Assumes the loader lock is held.
1256 mono_class_setup_basic_field_info (MonoClass *class)
1258 MonoClassField *field;
1266 gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1267 image = class->image;
1268 top = class->field.count;
1270 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1272 * This happens when a generic instance of an unfinished generic typebuilder
1273 * is used as an element type for creating an array type. We can't initialize
1274 * the fields of this class using the fields of gklass, since gklass is not
1275 * finished yet, fields could be added to it later.
1281 mono_class_setup_basic_field_info (gtd);
1283 top = gtd->field.count;
1284 class->field.first = gtd->field.first;
1285 class->field.count = gtd->field.count;
1288 class->fields = mono_class_alloc0 (class, sizeof (MonoClassField) * top);
1291 * Fetch all the field information.
1293 for (i = 0; i < top; i++){
1294 field = &class->fields [i];
1295 field->parent = class;
1298 field->name = mono_field_get_name (>d->fields [i]);
1300 int idx = class->field.first + i;
1301 /* class->field.first and idx points into the fieldptr table */
1302 guint32 name_idx = mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_NAME);
1303 /* The name is needed for fieldrefs */
1304 field->name = mono_metadata_string_heap (image, name_idx);
1310 * mono_class_setup_fields:
1311 * @class: The class to initialize
1313 * Initializes the class->fields.
1314 * LOCKING: Assumes the loader lock is held.
1317 mono_class_setup_fields (MonoClass *class)
1320 MonoImage *m = class->image;
1322 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1323 int i, blittable = TRUE;
1324 guint32 real_size = 0;
1325 guint32 packing_size = 0;
1326 gboolean explicit_size;
1327 MonoClassField *field;
1328 MonoGenericContainer *container = NULL;
1329 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1331 if (class->size_inited)
1334 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1336 * This happens when a generic instance of an unfinished generic typebuilder
1337 * is used as an element type for creating an array type. We can't initialize
1338 * the fields of this class using the fields of gklass, since gklass is not
1339 * finished yet, fields could be added to it later.
1344 mono_class_setup_basic_field_info (class);
1345 top = class->field.count;
1348 mono_class_setup_fields (gtd);
1349 if (gtd->exception_type) {
1350 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1355 class->instance_size = 0;
1357 class->sizes.class_size = 0;
1359 if (class->parent) {
1360 /* For generic instances, class->parent might not have been initialized */
1361 mono_class_init (class->parent);
1362 if (!class->parent->size_inited) {
1363 mono_class_setup_fields (class->parent);
1364 if (class->parent->exception_type) {
1365 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1369 class->instance_size += class->parent->instance_size;
1370 class->min_align = class->parent->min_align;
1371 /* we use |= since it may have been set already */
1372 class->has_references |= class->parent->has_references;
1373 blittable = class->parent->blittable;
1375 class->instance_size = sizeof (MonoObject);
1376 class->min_align = 1;
1379 /* We can't really enable 16 bytes alignment until the GC supports it.
1380 The whole layout/instance size code must be reviewed because we do alignment calculation in terms of the
1381 boxed instance, which leads to unexplainable holes at the beginning of an object embedding a simd type.
1382 Bug #506144 is an example of this issue.
1384 if (class->simd_type)
1385 class->min_align = 16;
1387 /* Get the real size */
1388 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1390 if (explicit_size) {
1391 if ((packing_size & 0xfffffff0) != 0) {
1392 char *err_msg = g_strdup_printf ("Could not load struct '%s' with packing size %d >= 16", class->name, packing_size);
1393 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
1396 class->packing_size = packing_size;
1397 real_size += class->instance_size;
1401 if (explicit_size && real_size) {
1402 class->instance_size = MAX (real_size, class->instance_size);
1404 class->size_inited = 1;
1405 class->blittable = blittable;
1409 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1412 /* Prevent infinite loops if the class references itself */
1413 class->size_inited = 1;
1415 if (class->generic_container) {
1416 container = class->generic_container;
1418 container = gtd->generic_container;
1419 g_assert (container);
1423 * Fetch all the field information.
1425 for (i = 0; i < top; i++){
1426 int idx = class->field.first + i;
1427 field = &class->fields [i];
1429 field->parent = class;
1432 mono_field_resolve_type (field, &error);
1433 if (!mono_error_ok (&error)) {
1434 /*mono_field_resolve_type already failed class*/
1435 mono_error_cleanup (&error);
1439 g_error ("could not resolve %s:%s\n", mono_type_get_full_name(class), field->name);
1440 g_assert (field->type);
1443 if (mono_field_is_deleted (field))
1446 MonoClassField *gfield = >d->fields [i];
1447 field->offset = gfield->offset;
1449 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1451 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1452 field->offset = offset;
1454 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1455 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Missing field layout info for %s", field->name));
1458 if (field->offset < -1) { /*-1 is used to encode special static fields */
1459 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Invalid negative field offset %d for %s", field->offset, field->name));
1465 /* Only do these checks if we still think this type is blittable */
1466 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1467 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1470 MonoClass *field_class = mono_class_from_mono_type (field->type);
1472 mono_class_setup_fields (field_class);
1473 if (field_class->exception_type) {
1474 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1478 if (!field_class || !field_class->blittable)
1483 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1484 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1485 blittable = class->element_class->blittable;
1488 if (mono_type_has_exceptions (field->type)) {
1489 char *class_name = mono_type_get_full_name (class);
1490 char *type_name = mono_type_full_name (field->type);
1492 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1493 g_warning ("Invalid type %s for instance field %s:%s", type_name, class_name, field->name);
1494 g_free (class_name);
1498 /* The def_value of fields is compute lazily during vtable creation */
1501 if (class == mono_defaults.string_class)
1504 class->blittable = blittable;
1506 if (class->enumtype && !mono_class_enum_basetype (class)) {
1507 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1510 if (explicit_size && real_size) {
1511 class->instance_size = MAX (real_size, class->instance_size);
1514 if (class->exception_type)
1516 mono_class_layout_fields (class);
1518 /*valuetypes can't be neither bigger than 1Mb or empty. */
1519 if (class->valuetype && (class->instance_size <= 0 || class->instance_size > (0x100000 + sizeof (MonoObject))))
1520 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1524 * mono_class_setup_fields_locking:
1525 * @class: The class to initialize
1527 * Initializes the class->fields array of fields.
1528 * Aquires the loader lock.
1531 mono_class_setup_fields_locking (MonoClass *class)
1533 mono_loader_lock ();
1534 mono_class_setup_fields (class);
1535 mono_loader_unlock ();
1539 * mono_class_has_references:
1541 * Returns whenever @klass->has_references is set, initializing it if needed.
1542 * Aquires the loader lock.
1545 mono_class_has_references (MonoClass *klass)
1547 if (klass->init_pending) {
1548 /* Be conservative */
1551 mono_class_init (klass);
1553 return klass->has_references;
1558 * mono_type_get_basic_type_from_generic:
1561 * Returns a closed type corresponding to the possibly open type
1565 mono_type_get_basic_type_from_generic (MonoType *type)
1567 /* When we do generic sharing we let type variables stand for reference types. */
1568 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1569 return &mono_defaults.object_class->byval_arg;
1574 * mono_class_layout_fields:
1577 * Compute the placement of fields inside an object or struct, according to
1578 * the layout rules and set the following fields in @class:
1579 * - has_references (if the class contains instance references firled or structs that contain references)
1580 * - has_static_refs (same, but for static fields)
1581 * - instance_size (size of the object in memory)
1582 * - class_size (size needed for the static fields)
1583 * - size_inited (flag set when the instance_size is set)
1585 * LOCKING: this is supposed to be called with the loader lock held.
1588 mono_class_layout_fields (MonoClass *class)
1591 const int top = class->field.count;
1592 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1593 guint32 pass, passes, real_size;
1594 gboolean gc_aware_layout = FALSE;
1595 MonoClassField *field;
1598 * When we do generic sharing we need to have layout
1599 * information for open generic classes (either with a generic
1600 * context containing type variables or with a generic
1601 * container), so we don't return in that case anymore.
1605 * Enable GC aware auto layout: in this mode, reference
1606 * fields are grouped together inside objects, increasing collector
1608 * Requires that all classes whose layout is known to native code be annotated
1609 * with [StructLayout (LayoutKind.Sequential)]
1610 * Value types have gc_aware_layout disabled by default, as per
1611 * what the default is for other runtimes.
1613 /* corlib is missing [StructLayout] directives in many places */
1614 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1615 if (class->byval_arg.type != MONO_TYPE_VALUETYPE)
1616 gc_aware_layout = TRUE;
1619 /* Compute klass->has_references */
1621 * Process non-static fields first, since static fields might recursively
1622 * refer to the class itself.
1624 for (i = 0; i < top; i++) {
1627 field = &class->fields [i];
1629 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1630 ftype = mono_type_get_underlying_type (field->type);
1631 ftype = mono_type_get_basic_type_from_generic (ftype);
1632 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1633 class->has_references = TRUE;
1637 for (i = 0; i < top; i++) {
1640 field = &class->fields [i];
1642 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1643 ftype = mono_type_get_underlying_type (field->type);
1644 ftype = mono_type_get_basic_type_from_generic (ftype);
1645 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1646 class->has_static_refs = TRUE;
1650 for (i = 0; i < top; i++) {
1653 field = &class->fields [i];
1655 ftype = mono_type_get_underlying_type (field->type);
1656 ftype = mono_type_get_basic_type_from_generic (ftype);
1657 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1658 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1659 class->has_static_refs = TRUE;
1661 class->has_references = TRUE;
1666 * Compute field layout and total size (not considering static fields)
1670 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1671 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1673 if (gc_aware_layout)
1678 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1681 if (class->parent) {
1682 mono_class_setup_fields (class->parent);
1683 if (class->parent->exception_type) {
1684 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1687 real_size = class->parent->instance_size;
1689 real_size = sizeof (MonoObject);
1692 for (pass = 0; pass < passes; ++pass) {
1693 for (i = 0; i < top; i++){
1698 field = &class->fields [i];
1700 if (mono_field_is_deleted (field))
1702 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1705 ftype = mono_type_get_underlying_type (field->type);
1706 ftype = mono_type_get_basic_type_from_generic (ftype);
1707 if (gc_aware_layout) {
1708 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1717 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1718 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1719 /* This field is a hack inserted by MCS to empty structures */
1723 size = mono_type_size (field->type, &align);
1725 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1726 align = class->packing_size ? MIN (class->packing_size, align): align;
1727 /* if the field has managed references, we need to force-align it
1730 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1731 align = MAX (align, sizeof (gpointer));
1733 class->min_align = MAX (align, class->min_align);
1734 field->offset = real_size;
1736 field->offset += align - 1;
1737 field->offset &= ~(align - 1);
1739 /*TypeBuilders produce all sort of weird things*/
1740 g_assert (class->image->dynamic || field->offset > 0);
1741 real_size = field->offset + size;
1744 class->instance_size = MAX (real_size, class->instance_size);
1746 if (class->instance_size & (class->min_align - 1)) {
1747 class->instance_size += class->min_align - 1;
1748 class->instance_size &= ~(class->min_align - 1);
1752 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1754 for (i = 0; i < top; i++) {
1759 field = &class->fields [i];
1762 * There must be info about all the fields in a type if it
1763 * uses explicit layout.
1766 if (mono_field_is_deleted (field))
1768 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1771 size = mono_type_size (field->type, &align);
1772 class->min_align = MAX (align, class->min_align);
1775 * When we get here, field->offset is already set by the
1776 * loader (for either runtime fields or fields loaded from metadata).
1777 * The offset is from the start of the object: this works for both
1778 * classes and valuetypes.
1780 field->offset += sizeof (MonoObject);
1781 ftype = mono_type_get_underlying_type (field->type);
1782 ftype = mono_type_get_basic_type_from_generic (ftype);
1783 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1784 if (field->offset % sizeof (gpointer)) {
1785 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1792 real_size = MAX (real_size, size + field->offset);
1794 class->instance_size = MAX (real_size, class->instance_size);
1798 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1800 * For small structs, set min_align to at least the struct size to improve
1801 * performance, and since the JIT memset/memcpy code assumes this and generates
1802 * unaligned accesses otherwise. See #78990 for a testcase.
1804 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1805 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1808 class->size_inited = 1;
1811 * Compute static field layout and size
1813 for (i = 0; i < top; i++){
1817 field = &class->fields [i];
1819 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1821 if (mono_field_is_deleted (field))
1824 if (mono_type_has_exceptions (field->type)) {
1825 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1829 size = mono_type_size (field->type, &align);
1830 field->offset = class->sizes.class_size;
1831 /*align is always non-zero here*/
1832 field->offset += align - 1;
1833 field->offset &= ~(align - 1);
1834 class->sizes.class_size = field->offset + size;
1839 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1843 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1844 method->klass = class;
1845 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1846 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1847 method->signature = sig;
1848 method->name = name;
1851 if (name [0] == '.') {
1852 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1854 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1860 * mono_class_setup_methods:
1863 * Initializes the 'methods' array in the klass.
1864 * Calling this method should be avoided if possible since it allocates a lot
1865 * of long-living MonoMethod structures.
1866 * Methods belonging to an interface are assigned a sequential slot starting
1869 * On failure this function sets class->exception_type
1872 mono_class_setup_methods (MonoClass *class)
1875 MonoMethod **methods;
1880 mono_loader_lock ();
1882 if (class->methods) {
1883 mono_loader_unlock ();
1887 if (class->generic_class) {
1889 MonoClass *gklass = class->generic_class->container_class;
1891 mono_class_init (gklass);
1892 if (!gklass->exception_type)
1893 mono_class_setup_methods (gklass);
1894 if (gklass->exception_type) {
1895 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1896 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
1897 mono_loader_unlock ();
1901 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1902 class->method.count = gklass->method.count;
1903 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * (class->method.count + 1));
1905 for (i = 0; i < class->method.count; i++) {
1906 methods [i] = mono_class_inflate_generic_method_full_checked (
1907 gklass->methods [i], class, mono_class_get_context (class), &error);
1908 if (!mono_error_ok (&error)) {
1909 char *method = mono_method_full_name (gklass->methods [i], TRUE);
1910 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Could not inflate method %s due to %s", method, mono_error_get_message (&error)));
1913 mono_error_cleanup (&error);
1914 mono_loader_unlock ();
1918 } else if (class->rank) {
1920 MonoMethod *amethod;
1921 MonoMethodSignature *sig;
1922 int count_generic = 0, first_generic = 0;
1925 class->method.count = 3 + (class->rank > 1? 2: 1);
1927 mono_class_setup_interfaces (class, &error);
1928 g_assert (mono_error_ok (&error)); /*FIXME can this fail for array types?*/
1930 if (class->interface_count) {
1931 count_generic = generic_array_methods (class);
1932 first_generic = class->method.count;
1933 class->method.count += class->interface_count * count_generic;
1936 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * class->method.count);
1938 sig = mono_metadata_signature_alloc (class->image, class->rank);
1939 sig->ret = &mono_defaults.void_class->byval_arg;
1940 sig->pinvoke = TRUE;
1941 sig->hasthis = TRUE;
1942 for (i = 0; i < class->rank; ++i)
1943 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1945 amethod = create_array_method (class, ".ctor", sig);
1946 methods [method_num++] = amethod;
1947 if (class->rank > 1) {
1948 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1949 sig->ret = &mono_defaults.void_class->byval_arg;
1950 sig->pinvoke = TRUE;
1951 sig->hasthis = TRUE;
1952 for (i = 0; i < class->rank * 2; ++i)
1953 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1955 amethod = create_array_method (class, ".ctor", sig);
1956 methods [method_num++] = amethod;
1958 /* element Get (idx11, [idx2, ...]) */
1959 sig = mono_metadata_signature_alloc (class->image, class->rank);
1960 sig->ret = &class->element_class->byval_arg;
1961 sig->pinvoke = TRUE;
1962 sig->hasthis = TRUE;
1963 for (i = 0; i < class->rank; ++i)
1964 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1965 amethod = create_array_method (class, "Get", sig);
1966 methods [method_num++] = amethod;
1967 /* element& Address (idx11, [idx2, ...]) */
1968 sig = mono_metadata_signature_alloc (class->image, class->rank);
1969 sig->ret = &class->element_class->this_arg;
1970 sig->pinvoke = TRUE;
1971 sig->hasthis = TRUE;
1972 for (i = 0; i < class->rank; ++i)
1973 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1974 amethod = create_array_method (class, "Address", sig);
1975 methods [method_num++] = amethod;
1976 /* void Set (idx11, [idx2, ...], element) */
1977 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1978 sig->ret = &mono_defaults.void_class->byval_arg;
1979 sig->pinvoke = TRUE;
1980 sig->hasthis = TRUE;
1981 for (i = 0; i < class->rank; ++i)
1982 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1983 sig->params [i] = &class->element_class->byval_arg;
1984 amethod = create_array_method (class, "Set", sig);
1985 methods [method_num++] = amethod;
1987 for (i = 0; i < class->interface_count; i++)
1988 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1990 methods = mono_class_alloc (class, sizeof (MonoMethod*) * class->method.count);
1991 for (i = 0; i < class->method.count; ++i) {
1992 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1993 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1997 if (MONO_CLASS_IS_INTERFACE (class)) {
1999 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
2000 for (i = 0; i < class->method.count; ++i) {
2001 if (methods [i]->flags & METHOD_ATTRIBUTE_VIRTUAL)
2002 methods [i]->slot = slot++;
2006 /* Needed because of the double-checking locking pattern */
2007 mono_memory_barrier ();
2009 class->methods = methods;
2011 if (mono_debugger_class_loaded_methods_func)
2012 mono_debugger_class_loaded_methods_func (class);
2014 mono_loader_unlock ();
2018 * mono_class_get_method_by_index:
2020 * Returns class->methods [index], initializing class->methods if neccesary.
2022 * LOCKING: Acquires the loader lock.
2025 mono_class_get_method_by_index (MonoClass *class, int index)
2027 /* Avoid calling setup_methods () if possible */
2028 if (class->generic_class && !class->methods) {
2029 MonoClass *gklass = class->generic_class->container_class;
2032 m = mono_class_inflate_generic_method_full (
2033 gklass->methods [index], class, mono_class_get_context (class));
2035 * If setup_methods () is called later for this class, no duplicates are created,
2036 * since inflate_generic_method guarantees that only one instance of a method
2037 * is created for each context.
2040 mono_class_setup_methods (class);
2041 g_assert (m == class->methods [index]);
2045 mono_class_setup_methods (class);
2046 if (class->exception_type) /*FIXME do proper error handling*/
2048 g_assert (index >= 0 && index < class->method.count);
2049 return class->methods [index];
2054 * mono_class_get_inflated_method:
2056 * Given an inflated class CLASS and a method METHOD which should be a method of
2057 * CLASS's generic definition, return the inflated method corresponding to METHOD.
2060 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
2062 MonoClass *gklass = class->generic_class->container_class;
2065 g_assert (method->klass == gklass);
2067 mono_class_setup_methods (gklass);
2068 g_assert (!gklass->exception_type); /*FIXME do proper error handling*/
2070 for (i = 0; i < gklass->method.count; ++i) {
2071 if (gklass->methods [i] == method) {
2073 return class->methods [i];
2075 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
2083 * mono_class_get_vtable_entry:
2085 * Returns class->vtable [offset], computing it if neccesary. Returns NULL on failure.
2086 * LOCKING: Acquires the loader lock.
2089 mono_class_get_vtable_entry (MonoClass *class, int offset)
2093 if (class->rank == 1) {
2095 * szarrays do not overwrite any methods of Array, so we can avoid
2096 * initializing their vtables in some cases.
2098 mono_class_setup_vtable (class->parent);
2099 if (offset < class->parent->vtable_size)
2100 return class->parent->vtable [offset];
2103 if (class->generic_class) {
2104 MonoClass *gklass = class->generic_class->container_class;
2105 mono_class_setup_vtable (gklass);
2106 m = gklass->vtable [offset];
2108 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
2110 mono_class_setup_vtable (class);
2111 if (class->exception_type)
2113 m = class->vtable [offset];
2120 * mono_class_get_vtable_size:
2122 * Return the vtable size for KLASS.
2125 mono_class_get_vtable_size (MonoClass *klass)
2127 mono_class_setup_vtable (klass);
2129 return klass->vtable_size;
2132 /*This method can fail the class.*/
2134 mono_class_setup_properties (MonoClass *class)
2136 guint startm, endm, i, j;
2137 guint32 cols [MONO_PROPERTY_SIZE];
2138 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2139 MonoProperty *properties;
2142 if (class->ext && class->ext->properties)
2145 mono_loader_lock ();
2147 if (class->ext && class->ext->properties) {
2148 mono_loader_unlock ();
2152 mono_class_alloc_ext (class);
2154 if (class->generic_class) {
2155 MonoClass *gklass = class->generic_class->container_class;
2157 mono_class_init (gklass);
2158 mono_class_setup_properties (gklass);
2159 if (gklass->exception_type) {
2160 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2161 mono_loader_unlock ();
2165 class->ext->property = gklass->ext->property;
2167 properties = mono_class_new0 (class, MonoProperty, class->ext->property.count + 1);
2169 for (i = 0; i < class->ext->property.count; i++) {
2170 MonoProperty *prop = &properties [i];
2172 *prop = gklass->ext->properties [i];
2175 prop->get = mono_class_inflate_generic_method_full (
2176 prop->get, class, mono_class_get_context (class));
2178 prop->set = mono_class_inflate_generic_method_full (
2179 prop->set, class, mono_class_get_context (class));
2181 prop->parent = class;
2184 int first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2185 int count = last - first;
2188 mono_class_setup_methods (class);
2189 if (class->exception_type) {
2190 mono_loader_unlock ();
2195 class->ext->property.first = first;
2196 class->ext->property.count = count;
2197 properties = mono_class_alloc0 (class, sizeof (MonoProperty) * count);
2198 for (i = first; i < last; ++i) {
2199 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
2200 properties [i - first].parent = class;
2201 properties [i - first].attrs = cols [MONO_PROPERTY_FLAGS];
2202 properties [i - first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
2204 startm = mono_metadata_methods_from_property (class->image, i, &endm);
2205 for (j = startm; j < endm; ++j) {
2208 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2210 if (class->image->uncompressed_metadata)
2211 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2212 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2214 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2216 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2217 case METHOD_SEMANTIC_SETTER:
2218 properties [i - first].set = method;
2220 case METHOD_SEMANTIC_GETTER:
2221 properties [i - first].get = method;
2229 /*Flush any pending writes as we do double checked locking on class->properties */
2230 mono_memory_barrier ();
2232 /* Leave this assignment as the last op in the function */
2233 class->ext->properties = properties;
2235 mono_loader_unlock ();
2239 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
2241 MonoMethod **om, **retval;
2244 for (om = methods, count = 0; *om; ++om, ++count)
2247 retval = g_new0 (MonoMethod*, count + 1);
2249 for (om = methods, count = 0; *om; ++om, ++count)
2250 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
2255 /*This method can fail the class.*/
2257 mono_class_setup_events (MonoClass *class)
2260 guint startm, endm, i, j;
2261 guint32 cols [MONO_EVENT_SIZE];
2262 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2266 if (class->ext && class->ext->events)
2269 mono_loader_lock ();
2271 if (class->ext && class->ext->events) {
2272 mono_loader_unlock ();
2276 mono_class_alloc_ext (class);
2278 if (class->generic_class) {
2279 MonoClass *gklass = class->generic_class->container_class;
2280 MonoGenericContext *context;
2282 mono_class_setup_events (gklass);
2283 if (gklass->exception_type) {
2284 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2285 mono_loader_unlock ();
2289 class->ext->event = gklass->ext->event;
2290 class->ext->events = mono_class_new0 (class, MonoEvent, class->ext->event.count);
2292 if (class->ext->event.count)
2293 context = mono_class_get_context (class);
2295 for (i = 0; i < class->ext->event.count; i++) {
2296 MonoEvent *event = &class->ext->events [i];
2297 MonoEvent *gevent = &gklass->ext->events [i];
2299 event->parent = class;
2300 event->name = gevent->name;
2301 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2302 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2303 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2304 #ifndef MONO_SMALL_CONFIG
2305 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2307 event->attrs = gevent->attrs;
2310 mono_loader_unlock ();
2314 first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2315 count = last - first;
2318 mono_class_setup_methods (class);
2319 if (class->exception_type) {
2320 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2321 mono_loader_unlock ();
2325 class->ext->event.first = first;
2326 class->ext->event.count = count;
2327 events = mono_class_alloc0 (class, sizeof (MonoEvent) * class->ext->event.count);
2328 for (i = first; i < last; ++i) {
2329 MonoEvent *event = &events [i - first];
2331 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2332 event->parent = class;
2333 event->attrs = cols [MONO_EVENT_FLAGS];
2334 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2336 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2337 for (j = startm; j < endm; ++j) {
2340 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2342 if (class->image->uncompressed_metadata)
2343 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2344 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2346 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2348 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2349 case METHOD_SEMANTIC_ADD_ON:
2350 event->add = method;
2352 case METHOD_SEMANTIC_REMOVE_ON:
2353 event->remove = method;
2355 case METHOD_SEMANTIC_FIRE:
2356 event->raise = method;
2358 case METHOD_SEMANTIC_OTHER: {
2359 #ifndef MONO_SMALL_CONFIG
2362 if (event->other == NULL) {
2363 event->other = g_new0 (MonoMethod*, 2);
2365 while (event->other [n])
2367 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2369 event->other [n] = method;
2370 /* NULL terminated */
2371 event->other [n + 1] = NULL;
2380 /*Flush any pending writes as we do double checked locking on class->properties */
2381 mono_memory_barrier ();
2383 /* Leave this assignment as the last op in the function */
2384 class->ext->events = events;
2386 mono_loader_unlock ();
2390 * Global pool of interface IDs, represented as a bitset.
2391 * LOCKING: this is supposed to be accessed with the loader lock held.
2393 static MonoBitSet *global_interface_bitset = NULL;
2396 * mono_unload_interface_ids:
2397 * @bitset: bit set of interface IDs
2399 * When an image is unloaded, the interface IDs associated with
2400 * the image are put back in the global pool of IDs so the numbers
2404 mono_unload_interface_ids (MonoBitSet *bitset)
2406 mono_loader_lock ();
2407 mono_bitset_sub (global_interface_bitset, bitset);
2408 mono_loader_unlock ();
2412 mono_unload_interface_id (MonoClass *class)
2414 if (global_interface_bitset && class->interface_id) {
2415 mono_loader_lock ();
2416 mono_bitset_clear (global_interface_bitset, class->interface_id);
2417 mono_loader_unlock ();
2422 * mono_get_unique_iid:
2425 * Assign a unique integer ID to the interface represented by @class.
2426 * The ID will positive and as small as possible.
2427 * LOCKING: this is supposed to be called with the loader lock held.
2428 * Returns: the new ID.
2431 mono_get_unique_iid (MonoClass *class)
2435 g_assert (MONO_CLASS_IS_INTERFACE (class));
2437 if (!global_interface_bitset) {
2438 global_interface_bitset = mono_bitset_new (128, 0);
2441 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2443 int old_size = mono_bitset_size (global_interface_bitset);
2444 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2445 mono_bitset_free (global_interface_bitset);
2446 global_interface_bitset = new_set;
2449 mono_bitset_set (global_interface_bitset, iid);
2450 /* set the bit also in the per-image set */
2451 if (!class->generic_class) {
2452 if (class->image->interface_bitset) {
2453 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2454 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2455 mono_bitset_free (class->image->interface_bitset);
2456 class->image->interface_bitset = new_set;
2459 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2461 mono_bitset_set (class->image->interface_bitset, iid);
2464 #ifndef MONO_SMALL_CONFIG
2465 if (mono_print_vtable) {
2467 char *type_name = mono_type_full_name (&class->byval_arg);
2468 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2469 generic_id = class->generic_class->context.class_inst->id;
2470 g_assert (generic_id != 0);
2474 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2479 g_assert (iid <= 65535);
2484 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res, MonoError *error)
2489 mono_class_setup_interfaces (klass, error);
2490 if (!mono_error_ok (error))
2493 for (i = 0; i < klass->interface_count; i++) {
2494 ic = klass->interfaces [i];
2497 *res = g_ptr_array_new ();
2498 g_ptr_array_add (*res, ic);
2499 mono_class_init (ic);
2500 if (ic->exception_type) {
2501 mono_error_set_type_load_class (error, ic, "Error Loading class");
2505 collect_implemented_interfaces_aux (ic, res, error);
2506 if (!mono_error_ok (error))
2512 mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error)
2514 GPtrArray *res = NULL;
2516 collect_implemented_interfaces_aux (klass, &res, error);
2517 if (!mono_error_ok (error)) {
2519 g_ptr_array_free (res, TRUE);
2526 compare_interface_ids (const void *p_key, const void *p_element) {
2527 const MonoClass *key = p_key;
2528 const MonoClass *element = *(MonoClass**) p_element;
2530 return (key->interface_id - element->interface_id);
2533 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2535 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2536 MonoClass **result = bsearch (
2538 klass->interfaces_packed,
2539 klass->interface_offsets_count,
2540 sizeof (MonoClass *),
2541 compare_interface_ids);
2543 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2550 * mono_class_interface_offset_with_variance:
2552 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2553 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2555 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2557 * FIXME figure out MS disambiguation rules and fix this function.
2560 mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match) {
2561 int i = mono_class_interface_offset (klass, itf);
2562 *non_exact_match = FALSE;
2566 if (!mono_class_has_variant_generic_params (itf))
2569 for (i = 0; i < klass->interface_offsets_count; i++) {
2570 if (mono_class_is_variant_compatible (itf, klass->interfaces_packed [i], FALSE)) {
2571 *non_exact_match = TRUE;
2572 return klass->interface_offsets_packed [i];
2580 print_implemented_interfaces (MonoClass *klass) {
2583 GPtrArray *ifaces = NULL;
2585 int ancestor_level = 0;
2587 name = mono_type_get_full_name (klass);
2588 printf ("Packed interface table for class %s has size %d\n", name, klass->interface_offsets_count);
2591 for (i = 0; i < klass->interface_offsets_count; i++)
2592 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2593 klass->interfaces_packed [i]->interface_id,
2594 klass->interface_offsets_packed [i],
2595 klass->interfaces_packed [i]->method.count,
2596 klass->interfaces_packed [i]->name_space,
2597 klass->interfaces_packed [i]->name );
2598 printf ("Interface flags: ");
2599 for (i = 0; i <= klass->max_interface_id; i++)
2600 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2601 printf ("(%d,T)", i);
2603 printf ("(%d,F)", i);
2605 printf ("Dump interface flags:");
2606 #ifdef COMPRESSED_INTERFACE_BITMAP
2608 const uint8_t* p = klass->interface_bitmap;
2609 i = klass->max_interface_id;
2611 printf (" %d x 00 %02X", p [0], p [1]);
2617 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2618 printf (" %02X", klass->interface_bitmap [i]);
2621 while (klass != NULL) {
2622 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2623 ifaces = mono_class_get_implemented_interfaces (klass, &error);
2624 if (!mono_error_ok (&error)) {
2625 printf (" Type failed due to %s\n", mono_error_get_message (&error));
2626 mono_error_cleanup (&error);
2627 } else if (ifaces) {
2628 for (i = 0; i < ifaces->len; i++) {
2629 MonoClass *ic = g_ptr_array_index (ifaces, i);
2630 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2631 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2633 mono_class_interface_offset (klass, ic),
2638 g_ptr_array_free (ifaces, TRUE);
2641 klass = klass->parent;
2646 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2649 args [0] = &arg0->byval_arg;
2651 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2655 array_class_get_if_rank (MonoClass *class, guint rank)
2657 return rank ? mono_array_class_get (class, rank) : class;
2661 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2663 valuetype_types [0] = eclass;
2664 if (eclass == mono_defaults.int16_class)
2665 valuetype_types [1] = mono_defaults.uint16_class;
2666 else if (eclass == mono_defaults.uint16_class)
2667 valuetype_types [1] = mono_defaults.int16_class;
2668 else if (eclass == mono_defaults.int32_class)
2669 valuetype_types [1] = mono_defaults.uint32_class;
2670 else if (eclass == mono_defaults.uint32_class)
2671 valuetype_types [1] = mono_defaults.int32_class;
2672 else if (eclass == mono_defaults.int64_class)
2673 valuetype_types [1] = mono_defaults.uint64_class;
2674 else if (eclass == mono_defaults.uint64_class)
2675 valuetype_types [1] = mono_defaults.int64_class;
2676 else if (eclass == mono_defaults.byte_class)
2677 valuetype_types [1] = mono_defaults.sbyte_class;
2678 else if (eclass == mono_defaults.sbyte_class)
2679 valuetype_types [1] = mono_defaults.byte_class;
2680 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2681 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2684 /* this won't be needed once bug #325495 is completely fixed
2685 * though we'll need something similar to know which interfaces to allow
2686 * in arrays when they'll be lazyly created
2688 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2689 * MS returns diferrent types based on which instance is called. For example:
2690 * object obj = new byte[10][];
2691 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2692 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2695 * Fixing this should kill quite some code, save some bits and improve compatibility.
2698 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2700 MonoClass *eclass = class->element_class;
2701 static MonoClass* generic_icollection_class = NULL;
2702 static MonoClass* generic_ienumerable_class = NULL;
2703 static MonoClass* generic_ienumerator_class = NULL;
2704 MonoClass *valuetype_types[2] = { NULL, NULL };
2705 MonoClass **interfaces = NULL;
2706 int i, interface_count, real_count, original_rank;
2708 gboolean internal_enumerator;
2709 gboolean eclass_is_valuetype;
2711 if (!mono_defaults.generic_ilist_class) {
2715 internal_enumerator = FALSE;
2716 eclass_is_valuetype = FALSE;
2717 original_rank = eclass->rank;
2718 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2719 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2721 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2723 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2724 original_rank = eclass->rank;
2726 eclass = eclass->element_class;
2727 internal_enumerator = TRUE;
2728 *is_enumerator = TRUE;
2736 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2737 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2739 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2741 if (!generic_icollection_class) {
2742 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2743 "System.Collections.Generic", "ICollection`1");
2744 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2745 "System.Collections.Generic", "IEnumerable`1");
2746 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2747 "System.Collections.Generic", "IEnumerator`1");
2750 mono_class_init (eclass);
2753 * Arrays in 2.0 need to implement a number of generic interfaces
2754 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2755 * on the element class). We collect the types needed to build the
2756 * instantiations in interfaces at intervals of 3, because 3 are
2757 * the generic interfaces needed to implement.
2759 if (eclass->valuetype) {
2760 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2762 /* IList, ICollection, IEnumerable */
2763 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2764 if (internal_enumerator) {
2766 if (valuetype_types [1])
2770 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2771 interfaces [0] = valuetype_types [0];
2772 if (valuetype_types [1])
2773 interfaces [3] = valuetype_types [1];
2775 eclass_is_valuetype = TRUE;
2778 int idepth = eclass->idepth;
2779 if (!internal_enumerator)
2782 // FIXME: This doesn't seem to work/required for generic params
2783 if (!(eclass->this_arg.type == MONO_TYPE_VAR || eclass->this_arg.type == MONO_TYPE_MVAR || (eclass->image->dynamic && !eclass->wastypebuilder)))
2784 mono_class_setup_interface_offsets (eclass);
2786 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2787 /* we add object for interfaces and the supertypes for the other
2788 * types. The last of the supertypes is the element class itself which we
2789 * already created the explicit interfaces for (so we include it for IEnumerator
2790 * and exclude it for arrays).
2792 if (MONO_CLASS_IS_INTERFACE (eclass))
2795 interface_count += idepth;
2796 if (eclass->rank && eclass->element_class->valuetype) {
2797 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2798 if (valuetype_types [1])
2801 /* IList, ICollection, IEnumerable */
2802 interface_count *= 3;
2803 real_count = interface_count;
2804 if (internal_enumerator) {
2805 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2806 if (valuetype_types [1])
2809 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2810 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2811 interfaces [0] = mono_defaults.object_class;
2815 for (i = 0; i < idepth; i++) {
2816 mono_class_init (eclass->supertypes [i]);
2817 interfaces [j] = eclass->supertypes [i];
2821 if (all_interfaces) {
2822 for (i = 0; i < eclass->interface_offsets_count; i++) {
2823 interfaces [j] = eclass->interfaces_packed [i];
2827 for (i = 0; i < eclass->interface_count; i++) {
2828 interfaces [j] = eclass->interfaces [i];
2832 if (valuetype_types [1]) {
2833 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2838 /* instantiate the generic interfaces */
2839 for (i = 0; i < interface_count; i += 3) {
2840 MonoClass *iface = interfaces [i];
2842 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2843 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2844 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2846 if (internal_enumerator) {
2848 /* instantiate IEnumerator<iface> */
2849 for (i = 0; i < interface_count; i++) {
2850 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2852 j = interface_count;
2853 if (!eclass_is_valuetype) {
2854 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2855 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2858 for (i = 0; i < eclass->idepth; i++) {
2859 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2863 for (i = 0; i < eclass->interface_offsets_count; i++) {
2864 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2868 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2870 if (valuetype_types [1])
2871 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2875 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2876 for (i = 0; i < real_count; ++i) {
2877 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2878 g_print ("%s implements %s\n", type_name, name);
2889 find_array_interface (MonoClass *klass, const char *name)
2892 for (i = 0; i < klass->interface_count; ++i) {
2893 if (strcmp (klass->interfaces [i]->name, name) == 0)
2900 * Return the number of virtual methods.
2901 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2902 * Return -1 on failure.
2903 * FIXME It would be nice if this information could be cached somewhere.
2906 count_virtual_methods (MonoClass *class)
2910 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2912 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2913 mono_class_setup_methods (class);
2914 if (class->exception_type)
2917 for (i = 0; i < class->method.count; ++i) {
2918 flags = class->methods [i]->flags;
2919 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2923 for (i = 0; i < class->method.count; ++i) {
2924 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2926 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2934 find_interface (int num_ifaces, MonoClass **interfaces_full, MonoClass *ic)
2942 m = (l + num_ifaces) / 2;
2943 if (interfaces_full [m] == ic)
2945 if (l == num_ifaces)
2947 if (!interfaces_full [m] || interfaces_full [m]->interface_id > ic->interface_id) {
2956 find_interface_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic)
2958 int i = find_interface (num_ifaces, interfaces_full, ic);
2960 return interface_offsets_full [i];
2965 set_interface_and_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic, int offset, mono_bool force_set)
2967 int i = find_interface (num_ifaces, interfaces_full, ic);
2971 interface_offsets_full [i] = offset;
2974 for (i = 0; i < num_ifaces; ++i) {
2975 if (interfaces_full [i]) {
2977 if (interfaces_full [i]->interface_id < ic->interface_id)
2980 while (end < num_ifaces && interfaces_full [end]) end++;
2981 memmove (interfaces_full + i + 1, interfaces_full + i, sizeof (MonoClass*) * (end - i));
2982 memmove (interface_offsets_full + i + 1, interface_offsets_full + i, sizeof (int) * (end - i));
2984 interfaces_full [i] = ic;
2985 interface_offsets_full [i] = offset;
2991 #ifdef COMPRESSED_INTERFACE_BITMAP
2994 * Compressed interface bitmap design.
2996 * Interface bitmaps take a large amount of memory, because their size is
2997 * linear with the maximum interface id assigned in the process (each interface
2998 * is assigned a unique id as it is loaded). The number of interface classes
2999 * is high because of the many implicit interfaces implemented by arrays (we'll
3000 * need to lazy-load them in the future).
3001 * Most classes implement a very small number of interfaces, so the bitmap is
3002 * sparse. This bitmap needs to be checked by interface casts, so access to the
3003 * needed bit must be fast and doable with few jit instructions.
3005 * The current compression format is as follows:
3006 * *) it is a sequence of one or more two-byte elements
3007 * *) the first byte in the element is the count of empty bitmap bytes
3008 * at the current bitmap position
3009 * *) the second byte in the element is an actual bitmap byte at the current
3012 * As an example, the following compressed bitmap bytes:
3013 * 0x07 0x01 0x00 0x7
3014 * correspond to the following bitmap:
3015 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
3017 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
3018 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
3019 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
3023 * mono_compress_bitmap:
3024 * @dest: destination buffer
3025 * @bitmap: bitmap buffer
3026 * @size: size of @bitmap in bytes
3028 * This is a mono internal function.
3029 * The @bitmap data is compressed into a format that is small but
3030 * still searchable in few instructions by the JIT and runtime.
3031 * The compressed data is stored in the buffer pointed to by the
3032 * @dest array. Passing a #NULL value for @dest allows to just compute
3033 * the size of the buffer.
3034 * This compression algorithm assumes the bits set in the bitmap are
3035 * few and far between, like in interface bitmaps.
3036 * Returns: the size of the compressed bitmap in bytes.
3039 mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size)
3043 const uint8_t *end = bitmap + size;
3044 while (bitmap < end) {
3045 if (*bitmap || numz == 255) {
3069 * mono_class_interface_match:
3070 * @bitmap: a compressed bitmap buffer
3071 * @id: the index to check in the bitmap
3073 * This is a mono internal function.
3074 * Checks if a bit is set in a compressed interface bitmap. @id must
3075 * be already checked for being smaller than the maximum id encoded in the
3078 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
3082 mono_class_interface_match (const uint8_t *bitmap, int id)
3085 id -= bitmap [0] * 8;
3089 return bitmap [1] & (1 << id);
3098 * LOCKING: this is supposed to be called with the loader lock held.
3099 * Return -1 on failure and set exception_type
3102 setup_interface_offsets (MonoClass *class, int cur_slot, gboolean overwrite)
3106 int i, j, max_iid, num_ifaces;
3107 MonoClass **interfaces_full = NULL;
3108 int *interface_offsets_full = NULL;
3110 GPtrArray **ifaces_array = NULL;
3111 int interface_offsets_count;
3112 MonoClass **array_interfaces = NULL;
3113 int num_array_interfaces;
3114 int is_enumerator = FALSE;
3116 mono_class_setup_supertypes (class);
3118 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
3119 * implicit interfaces have the property that they are assigned the same slot in the
3120 * vtables for compatible interfaces
3122 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
3124 /* compute maximum number of slots and maximum interface id */
3126 num_ifaces = num_array_interfaces; /* this can include duplicated ones */
3127 ifaces_array = g_new0 (GPtrArray *, class->idepth);
3128 for (j = 0; j < class->idepth; j++) {
3129 k = class->supertypes [j];
3130 num_ifaces += k->interface_count;
3131 for (i = 0; i < k->interface_count; i++) {
3132 ic = k->interfaces [i];
3135 mono_class_init (ic);
3137 if (max_iid < ic->interface_id)
3138 max_iid = ic->interface_id;
3140 ifaces = mono_class_get_implemented_interfaces (k, &error);
3141 if (!mono_error_ok (&error)) {
3142 char *name = mono_type_get_full_name (k);
3143 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error getting the interfaces of %s due to %s", name, mono_error_get_message (&error)));
3145 mono_error_cleanup (&error);
3150 num_ifaces += ifaces->len;
3151 for (i = 0; i < ifaces->len; ++i) {
3152 ic = g_ptr_array_index (ifaces, i);
3153 if (max_iid < ic->interface_id)
3154 max_iid = ic->interface_id;
3156 ifaces_array [j] = ifaces;
3160 for (i = 0; i < num_array_interfaces; ++i) {
3161 ic = array_interfaces [i];
3162 mono_class_init (ic);
3163 if (max_iid < ic->interface_id)
3164 max_iid = ic->interface_id;
3167 if (MONO_CLASS_IS_INTERFACE (class)) {
3169 if (max_iid < class->interface_id)
3170 max_iid = class->interface_id;
3172 class->max_interface_id = max_iid;
3173 /* compute vtable offset for interfaces */
3174 interfaces_full = g_malloc0 (sizeof (MonoClass*) * num_ifaces);
3175 interface_offsets_full = g_malloc (sizeof (int) * num_ifaces);
3177 for (i = 0; i < num_ifaces; i++) {
3178 interface_offsets_full [i] = -1;
3181 /* skip the current class */
3182 for (j = 0; j < class->idepth - 1; j++) {
3183 k = class->supertypes [j];
3184 ifaces = ifaces_array [j];
3187 for (i = 0; i < ifaces->len; ++i) {
3189 ic = g_ptr_array_index (ifaces, i);
3191 /*Force the sharing of interface offsets between parent and subtypes.*/
3192 io = mono_class_interface_offset (k, ic);
3194 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, io, TRUE);
3199 g_assert (class == class->supertypes [class->idepth - 1]);
3200 ifaces = ifaces_array [class->idepth - 1];
3202 for (i = 0; i < ifaces->len; ++i) {
3204 ic = g_ptr_array_index (ifaces, i);
3205 if (set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, cur_slot, FALSE))
3207 count = count_virtual_methods (ic);
3209 char *name = mono_type_get_full_name (ic);
3210 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error calculating interface offset of %s", name));
3219 if (MONO_CLASS_IS_INTERFACE (class))
3220 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, class, cur_slot, TRUE);
3222 if (num_array_interfaces) {
3223 if (is_enumerator) {
3224 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
3225 int ienumerator_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ienumerator_idx]);
3226 g_assert (ienumerator_offset >= 0);
3227 for (i = 0; i < num_array_interfaces; ++i) {
3228 ic = array_interfaces [i];
3229 if (strcmp (ic->name, "IEnumerator`1") == 0)
3230 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, ienumerator_offset, TRUE);
3232 g_assert_not_reached ();
3233 /*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);*/
3236 int ilist_offset, icollection_offset, ienumerable_offset;
3237 int ilist_iface_idx = find_array_interface (class, "IList`1");
3238 MonoClass* ilist_class = class->interfaces [ilist_iface_idx];
3239 int icollection_iface_idx = find_array_interface (ilist_class, "ICollection`1");
3240 int ienumerable_iface_idx = find_array_interface (ilist_class, "IEnumerable`1");
3241 ilist_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ilist_iface_idx]);
3242 icollection_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [icollection_iface_idx]);
3243 ienumerable_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [ienumerable_iface_idx]);
3244 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
3245 for (i = 0; i < num_array_interfaces; ++i) {
3247 ic = array_interfaces [i];
3248 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
3249 offset = ilist_offset;
3250 else if (strcmp (ic->name, "ICollection`1") == 0)
3251 offset = icollection_offset;
3252 else if (strcmp (ic->name, "IEnumerable`1") == 0)
3253 offset = ienumerable_offset;
3255 g_assert_not_reached ();
3256 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, offset, TRUE);
3257 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3262 for (interface_offsets_count = 0, i = 0; i < num_ifaces; i++) {
3263 if (interface_offsets_full [i] != -1) {
3264 interface_offsets_count ++;
3269 * We might get called multiple times:
3270 * - mono_class_init ()
3271 * - mono_class_setup_vtable ().
3272 * - mono_class_setup_interface_offsets ().
3273 * mono_class_setup_interface_offsets () passes 0 as CUR_SLOT, so the computed interface offsets will be invalid. This
3274 * means we have to overwrite those when called from other places (#4440).
3276 if (class->interfaces_packed && !overwrite) {
3277 g_assert (class->interface_offsets_count == interface_offsets_count);
3281 class->interface_offsets_count = interface_offsets_count;
3282 class->interfaces_packed = mono_class_alloc (class, sizeof (MonoClass*) * interface_offsets_count);
3283 class->interface_offsets_packed = mono_class_alloc (class, sizeof (guint16) * interface_offsets_count);
3284 bsize = (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0);
3285 #ifdef COMPRESSED_INTERFACE_BITMAP
3286 bitmap = g_malloc0 (bsize);
3288 bitmap = mono_class_alloc0 (class, bsize);
3290 for (i = 0; i < interface_offsets_count; i++) {
3291 int id = interfaces_full [i]->interface_id;
3292 bitmap [id >> 3] |= (1 << (id & 7));
3293 class->interfaces_packed [i] = interfaces_full [i];
3294 class->interface_offsets_packed [i] = interface_offsets_full [i];
3295 /*if (num_array_interfaces)
3296 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]);*/
3298 #ifdef COMPRESSED_INTERFACE_BITMAP
3299 i = mono_compress_bitmap (NULL, bitmap, bsize);
3300 class->interface_bitmap = mono_class_alloc0 (class, i);
3301 mono_compress_bitmap (class->interface_bitmap, bitmap, bsize);
3304 class->interface_bitmap = bitmap;
3309 g_free (interfaces_full);
3310 g_free (interface_offsets_full);
3311 g_free (array_interfaces);
3312 for (i = 0; i < class->idepth; i++) {
3313 ifaces = ifaces_array [i];
3315 g_ptr_array_free (ifaces, TRUE);
3317 g_free (ifaces_array);
3319 //printf ("JUST DONE: ");
3320 //print_implemented_interfaces (class);
3326 * Setup interface offsets for interfaces.
3328 * - class->max_interface_id
3329 * - class->interface_offsets_count
3330 * - class->interfaces_packed
3331 * - class->interface_offsets_packed
3332 * - class->interface_bitmap
3334 * This function can fail @class.
3337 mono_class_setup_interface_offsets (MonoClass *class)
3339 mono_loader_lock ();
3341 setup_interface_offsets (class, 0, FALSE);
3343 mono_loader_unlock ();
3346 /*Checks if @klass has @parent as one of it's parents type gtd
3350 * Bar<T> : Foo<Bar<Bar<T>>>
3354 mono_class_has_gtd_parent (MonoClass *klass, MonoClass *parent)
3356 klass = mono_class_get_generic_type_definition (klass);
3357 parent = mono_class_get_generic_type_definition (parent);
3358 mono_class_setup_supertypes (klass);
3359 mono_class_setup_supertypes (parent);
3361 return klass->idepth >= parent->idepth &&
3362 mono_class_get_generic_type_definition (klass->supertypes [parent->idepth - 1]) == parent;
3366 mono_class_check_vtable_constraints (MonoClass *class, GList *in_setup)
3368 MonoGenericInst *ginst;
3370 if (!class->generic_class) {
3371 mono_class_setup_vtable_full (class, in_setup);
3372 return class->exception_type == 0;
3375 mono_class_setup_vtable_full (mono_class_get_generic_type_definition (class), in_setup);
3376 if (class->generic_class->container_class->exception_type) {
3377 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to load generic definition vtable"));
3381 ginst = class->generic_class->context.class_inst;
3382 for (i = 0; i < ginst->type_argc; ++i) {
3384 if (ginst->type_argv [i]->type != MONO_TYPE_GENERICINST)
3386 arg = mono_class_from_mono_type (ginst->type_argv [i]);
3387 /*Those 2 will be checked by mono_class_setup_vtable itself*/
3388 if (mono_class_has_gtd_parent (class, arg) || mono_class_has_gtd_parent (arg, class))
3390 if (!mono_class_check_vtable_constraints (arg, in_setup)) {
3391 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Failed to load generic parameter %d", i));
3399 * mono_class_setup_vtable:
3401 * Creates the generic vtable of CLASS.
3402 * Initializes the following fields in MonoClass:
3405 * Plus all the fields initialized by setup_interface_offsets ().
3406 * If there is an error during vtable construction, class->exception_type is set.
3408 * LOCKING: Acquires the loader lock.
3411 mono_class_setup_vtable (MonoClass *class)
3413 mono_class_setup_vtable_full (class, NULL);
3417 mono_class_setup_vtable_full (MonoClass *class, GList *in_setup)
3419 MonoMethod **overrides;
3420 MonoGenericContext *context;
3428 if (mono_debug_using_mono_debugger ())
3429 /* The debugger currently depends on this */
3430 mono_class_setup_methods (class);
3432 if (MONO_CLASS_IS_INTERFACE (class)) {
3433 /* This sets method->slot for all methods if this is an interface */
3434 mono_class_setup_methods (class);
3438 if (class->exception_type)
3441 if (g_list_find (in_setup, class))
3444 mono_loader_lock ();
3446 if (class->vtable) {
3447 mono_loader_unlock ();
3451 mono_stats.generic_vtable_count ++;
3452 in_setup = g_list_prepend (in_setup, class);
3454 if (class->generic_class) {
3455 if (!mono_class_check_vtable_constraints (class, in_setup)) {
3456 mono_loader_unlock ();
3457 g_list_remove (in_setup, class);
3461 context = mono_class_get_context (class);
3462 type_token = class->generic_class->container_class->type_token;
3464 context = (MonoGenericContext *) class->generic_container;
3465 type_token = class->type_token;
3468 if (class->image->dynamic) {
3469 /* Generic instances can have zero method overrides without causing any harm.
3470 * This is true since we don't do layout all over again for them, we simply inflate
3471 * the layout of the parent.
3473 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
3475 /* The following call fails if there are missing methods in the type */
3476 /* FIXME it's probably a good idea to avoid this for generic instances. */
3477 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
3481 mono_class_setup_vtable_general (class, overrides, onum, in_setup);
3483 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load list of method overrides"));
3487 mono_loader_unlock ();
3488 g_list_remove (in_setup, class);
3493 #define DEBUG_INTERFACE_VTABLE_CODE 0
3494 #define TRACE_INTERFACE_VTABLE_CODE 0
3495 #define VERIFY_INTERFACE_VTABLE_CODE 0
3496 #define VTABLE_SELECTOR (1)
3498 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3499 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3500 if (!(VTABLE_SELECTOR)) break; \
3504 #define DEBUG_INTERFACE_VTABLE(stmt)
3507 #if TRACE_INTERFACE_VTABLE_CODE
3508 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3509 if (!(VTABLE_SELECTOR)) break; \
3513 #define TRACE_INTERFACE_VTABLE(stmt)
3516 #if VERIFY_INTERFACE_VTABLE_CODE
3517 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3518 if (!(VTABLE_SELECTOR)) break; \
3522 #define VERIFY_INTERFACE_VTABLE(stmt)
3526 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3528 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
3532 GString *res = g_string_new ("");
3534 g_string_append_c (res, '(');
3535 for (i = 0; i < sig->param_count; ++i) {
3537 g_string_append_c (res, ',');
3538 mono_type_get_desc (res, sig->params [i], include_namespace);
3540 g_string_append (res, ")=>");
3541 if (sig->ret != NULL) {
3542 mono_type_get_desc (res, sig->ret, include_namespace);
3544 g_string_append (res, "NULL");
3547 g_string_free (res, FALSE);
3551 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
3552 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
3553 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
3554 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
3562 is_wcf_hack_disabled (void)
3564 static gboolean disabled;
3565 static gboolean inited = FALSE;
3567 disabled = g_getenv ("MONO_DISABLE_WCF_HACK") != NULL;
3574 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) {
3575 MonoMethodSignature *cmsig, *imsig;
3576 if (strcmp (im->name, cm->name) == 0) {
3577 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
3578 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3581 if (! slot_is_empty) {
3582 if (require_newslot) {
3583 if (! interface_is_explicitly_implemented_by_class) {
3584 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3587 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3588 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3592 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3595 cmsig = mono_method_signature (cm);
3596 imsig = mono_method_signature (im);
3597 if (!cmsig || !imsig) {
3598 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3602 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3603 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3604 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3605 TRACE_INTERFACE_VTABLE (printf ("]"));
3608 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3609 /* CAS - SecurityAction.InheritanceDemand on interface */
3610 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3611 mono_secman_inheritancedemand_method (cm, im);
3614 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3615 mono_security_core_clr_check_override (class, cm, im);
3616 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3617 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, im, NULL)) {
3618 char *body_name = mono_method_full_name (cm, TRUE);
3619 char *decl_name = mono_method_full_name (im, TRUE);
3620 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Method %s overrides method '%s' which is not accessible", body_name, decl_name));
3628 MonoClass *ic = im->klass;
3629 const char *ic_name_space = ic->name_space;
3630 const char *ic_name = ic->name;
3633 if (! require_newslot) {
3634 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3637 if (cm->klass->rank == 0) {
3638 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3641 cmsig = mono_method_signature (cm);
3642 imsig = mono_method_signature (im);
3643 if (!cmsig || !imsig) {
3644 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3648 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3649 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
3650 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3651 TRACE_INTERFACE_VTABLE (printf ("]"));
3654 if (mono_class_get_image (ic) != mono_defaults.corlib) {
3655 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
3658 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
3659 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
3662 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
3663 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
3667 subname = strstr (cm->name, ic_name_space);
3668 if (subname != cm->name) {
3669 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
3672 subname += strlen (ic_name_space);
3673 if (subname [0] != '.') {
3674 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
3678 if (strstr (subname, ic_name) != subname) {
3679 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
3682 subname += strlen (ic_name);
3683 if (subname [0] != '.') {
3684 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
3688 if (strcmp (subname, im->name) != 0) {
3689 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3693 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3694 /* CAS - SecurityAction.InheritanceDemand on interface */
3695 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3696 mono_secman_inheritancedemand_method (cm, im);
3699 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3700 mono_security_core_clr_check_override (class, cm, im);
3702 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3703 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, im, NULL)) {
3704 char *body_name = mono_method_full_name (cm, TRUE);
3705 char *decl_name = mono_method_full_name (im, TRUE);
3706 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Method %s overrides method '%s' which is not accessible", body_name, decl_name));
3716 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3718 foreach_override (gpointer key, gpointer value, gpointer user_data) {
3719 MonoMethod *method = key;
3720 MonoMethod *override = value;
3721 MonoClass *method_class = mono_method_get_class (method);
3722 MonoClass *override_class = mono_method_get_class (override);
3724 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3725 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
3726 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
3729 print_overrides (GHashTable *override_map, const char *message) {
3731 printf ("Override map \"%s\" START:\n", message);
3732 g_hash_table_foreach (override_map, foreach_override, NULL);
3733 printf ("Override map \"%s\" END.\n", message);
3735 printf ("Override map \"%s\" EMPTY.\n", message);
3739 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
3740 char *full_name = mono_type_full_name (&class->byval_arg);
3744 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
3746 if (print_interfaces) {
3747 print_implemented_interfaces (class);
3748 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3751 if (class->parent) {
3752 parent_size = class->parent->vtable_size;
3756 for (i = 0; i < size; ++i) {
3757 MonoMethod *cm = vtable [i];
3758 char *cm_name = cm ? mono_method_full_name (cm, TRUE) : g_strdup ("nil");
3759 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3761 printf (" [%c][%03d][INDEX %03d] %s [%p]\n", newness, i, cm ? cm->slot : - 1, cm_name, cm);
3769 #if VERIFY_INTERFACE_VTABLE_CODE
3771 mono_method_try_get_vtable_index (MonoMethod *method)
3773 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3774 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3775 if (imethod->declaring->is_generic)
3776 return imethod->declaring->slot;
3778 return method->slot;
3782 mono_class_verify_vtable (MonoClass *class)
3785 char *full_name = mono_type_full_name (&class->byval_arg);
3787 printf ("*** Verifying VTable of class '%s' \n", full_name);
3791 if (!class->methods)
3794 for (i = 0; i < class->method.count; ++i) {
3795 MonoMethod *cm = class->methods [i];
3798 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3802 full_name = mono_method_full_name (cm, TRUE);
3804 slot = mono_method_try_get_vtable_index (cm);
3806 if (slot >= class->vtable_size) {
3807 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3811 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3812 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3813 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3814 g_free (other_name);
3817 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3824 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3826 char *method_signature;
3829 for (index = 0; index < onum; ++index) {
3830 mono_trace_warning (MONO_TRACE_TYPE, " at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3831 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3833 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3834 type_name = mono_type_full_name (&class->byval_arg);
3835 mono_trace_warning (MONO_TRACE_TYPE, "no implementation for interface method %s::%s(%s) in class %s\n",
3836 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3837 g_free (method_signature);
3839 mono_class_setup_methods (class);
3840 if (class->exception_type) {
3841 char *name = mono_type_get_full_name (class);
3842 mono_trace_warning (MONO_TRACE_TYPE, "CLASS %s failed to resolve methods\n", name);
3846 for (index = 0; index < class->method.count; ++index) {
3847 MonoMethod *cm = class->methods [index];
3848 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3850 mono_trace_warning (MONO_TRACE_TYPE, "METHOD %s(%s)\n", cm->name, method_signature);
3851 g_free (method_signature);
3856 mono_method_get_method_definition (MonoMethod *method)
3858 while (method->is_inflated)
3859 method = ((MonoMethodInflated*)method)->declaring;
3864 verify_class_overrides (MonoClass *class, MonoMethod **overrides, int onum)
3868 for (i = 0; i < onum; ++i) {
3869 MonoMethod *decl = overrides [i * 2];
3870 MonoMethod *body = overrides [i * 2 + 1];
3872 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3873 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3877 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3878 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3879 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3881 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3885 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3886 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3887 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3889 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3893 if (!mono_class_is_assignable_from_slow (decl->klass, class)) {
3894 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3898 body = mono_method_get_method_definition (body);
3899 decl = mono_method_get_method_definition (decl);
3901 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (body, decl, NULL)) {
3902 char *body_name = mono_method_full_name (body, TRUE);
3903 char *decl_name = mono_method_full_name (decl, TRUE);
3904 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Method %s overrides method '%s' which is not accessible", body_name, decl_name));
3914 mono_class_need_stelemref_method (MonoClass *class)
3916 return class->rank == 1 && MONO_TYPE_IS_REFERENCE (&class->element_class->byval_arg);
3920 * LOCKING: this is supposed to be called with the loader lock held.
3923 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum, GList *in_setup)
3927 MonoMethod **vtable;
3928 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3929 GPtrArray *ifaces = NULL;
3930 GHashTable *override_map = NULL;
3931 gboolean security_enabled = mono_is_security_manager_active ();
3933 gpointer class_iter;
3934 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3935 int first_non_interface_slot;
3937 GSList *virt_methods = NULL, *l;
3938 int stelemref_slot = 0;
3943 if (overrides && !verify_class_overrides (class, overrides, onum))
3946 ifaces = mono_class_get_implemented_interfaces (class, &error);
3947 if (!mono_error_ok (&error)) {
3948 char *name = mono_type_get_full_name (class);
3949 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Could not resolve %s interfaces due to %s", name, mono_error_get_message (&error)));
3951 mono_error_cleanup (&error);
3953 } else if (ifaces) {
3954 for (i = 0; i < ifaces->len; i++) {
3955 MonoClass *ic = g_ptr_array_index (ifaces, i);
3956 max_vtsize += ic->method.count;
3958 g_ptr_array_free (ifaces, TRUE);
3962 if (class->parent) {
3963 mono_class_init (class->parent);
3964 mono_class_setup_vtable_full (class->parent, in_setup);
3966 if (class->parent->exception_type) {
3967 char *name = mono_type_get_full_name (class->parent);
3968 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Parent %s failed to load", name));
3973 max_vtsize += class->parent->vtable_size;
3974 cur_slot = class->parent->vtable_size;
3977 max_vtsize += class->method.count;
3979 /*Array have a slot for stelemref*/
3980 if (mono_class_need_stelemref_method (class)) {
3981 stelemref_slot = cur_slot;
3986 vtable = alloca (sizeof (gpointer) * max_vtsize);
3987 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3989 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3991 cur_slot = setup_interface_offsets (class, cur_slot, TRUE);
3992 if (cur_slot == -1) /*setup_interface_offsets fails the type.*/
3995 max_iid = class->max_interface_id;
3996 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3998 /* Optimized version for generic instances */
3999 if (class->generic_class) {
4001 MonoClass *gklass = class->generic_class->container_class;
4004 mono_class_setup_vtable_full (gklass, in_setup);
4005 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
4006 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4010 tmp = mono_class_alloc0 (class, sizeof (gpointer) * gklass->vtable_size);
4011 class->vtable_size = gklass->vtable_size;
4012 for (i = 0; i < gklass->vtable_size; ++i)
4013 if (gklass->vtable [i]) {
4014 MonoMethod *inflated = mono_class_inflate_generic_method_full_checked (gklass->vtable [i], class, mono_class_get_context (class), &error);
4015 if (!mono_error_ok (&error)) {
4016 char *err_msg = g_strdup_printf ("Could not inflate method due to %s", mono_error_get_message (&error));
4017 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
4019 mono_error_cleanup (&error);
4023 tmp [i]->slot = gklass->vtable [i]->slot;
4025 mono_memory_barrier ();
4026 class->vtable = tmp;
4028 /* Have to set method->slot for abstract virtual methods */
4029 if (class->methods && gklass->methods) {
4030 for (i = 0; i < class->method.count; ++i)
4031 if (class->methods [i]->slot == -1)
4032 class->methods [i]->slot = gklass->methods [i]->slot;
4038 if (class->parent && class->parent->vtable_size) {
4039 MonoClass *parent = class->parent;
4042 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
4044 // Also inherit parent interface vtables, just as a starting point.
4045 // This is needed otherwise bug-77127.exe fails when the property methods
4046 // have different names in the iterface and the class, because for child
4047 // classes the ".override" information is not used anymore.
4048 for (i = 0; i < parent->interface_offsets_count; i++) {
4049 MonoClass *parent_interface = parent->interfaces_packed [i];
4050 int interface_offset = mono_class_interface_offset (class, parent_interface);
4051 /*FIXME this is now dead code as this condition will never hold true.
4052 Since interface offsets are inherited then the offset of an interface implemented
4053 by a parent will never be the out of it's vtable boundary.
4055 if (interface_offset >= parent->vtable_size) {
4056 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
4059 mono_class_setup_methods (parent_interface); /*FIXME Just kill this whole chunk of dead code*/
4060 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
4061 for (j = 0; j < parent_interface->method.count && !class->exception_type; j++) {
4062 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
4063 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
4064 parent_interface_offset + j, parent_interface_offset, j,
4065 interface_offset + j, interface_offset, j));
4072 /*Array have a slot for stelemref*/
4073 if (mono_class_need_stelemref_method (class)) {
4074 MonoMethod *method = mono_marshal_get_virtual_stelemref (class);
4076 method->slot = stelemref_slot;
4078 g_assert (method->slot == stelemref_slot);
4080 vtable [stelemref_slot] = method;
4083 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
4084 /* override interface methods */
4085 for (i = 0; i < onum; i++) {
4086 MonoMethod *decl = overrides [i*2];
4087 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
4089 dslot = mono_method_get_vtable_slot (decl);
4091 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4095 dslot += mono_class_interface_offset (class, decl->klass);
4096 vtable [dslot] = overrides [i*2 + 1];
4097 vtable [dslot]->slot = dslot;
4099 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4101 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
4103 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4104 mono_security_core_clr_check_override (class, vtable [dslot], decl);
4107 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
4108 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
4111 * Create a list of virtual methods to avoid calling
4112 * mono_class_get_virtual_methods () which is slow because of the metadata
4116 gpointer iter = NULL;
4119 virt_methods = NULL;
4120 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
4121 virt_methods = g_slist_prepend (virt_methods, cm);
4123 if (class->exception_type)
4127 // Loop on all implemented interfaces...
4128 for (i = 0; i < class->interface_offsets_count; i++) {
4129 MonoClass *parent = class->parent;
4131 gboolean interface_is_explicitly_implemented_by_class;
4134 ic = class->interfaces_packed [i];
4135 ic_offset = mono_class_interface_offset (class, ic);
4137 mono_class_setup_methods (ic);
4138 if (ic->exception_type)
4141 // Check if this interface is explicitly implemented (instead of just inherited)
4142 if (parent != NULL) {
4143 int implemented_interfaces_index;
4144 interface_is_explicitly_implemented_by_class = FALSE;
4145 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
4146 if (ic == class->interfaces [implemented_interfaces_index]) {
4147 interface_is_explicitly_implemented_by_class = TRUE;
4152 interface_is_explicitly_implemented_by_class = TRUE;
4155 // Loop on all interface methods...
4156 for (im_index = 0; im_index < ic->method.count; im_index++) {
4157 MonoMethod *im = ic->methods [im_index];
4158 int im_slot = ic_offset + im->slot;
4159 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
4161 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4164 TRACE_INTERFACE_VTABLE (printf ("\tchecking iface method %s\n", mono_method_full_name (im,1)));
4166 // If there is an explicit implementation, just use it right away,
4167 // otherwise look for a matching method
4168 if (override_im == NULL) {
4173 // First look for a suitable method among the class methods
4175 for (l = virt_methods; l; l = l->next) {
4177 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)));
4178 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
4179 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
4180 vtable [im_slot] = cm;
4181 /* Why do we need this? */
4186 TRACE_INTERFACE_VTABLE (printf ("\n"));
4187 if (class->exception_type) /*Might be set by check_interface_method_override*/
4191 // If the slot is still empty, look in all the inherited virtual methods...
4192 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
4193 MonoClass *parent = class->parent;
4194 // Reverse order, so that last added methods are preferred
4195 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
4196 MonoMethod *cm = parent->vtable [cm_index];
4198 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));
4199 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
4200 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
4201 vtable [im_slot] = cm;
4202 /* Why do we need this? */
4208 if (class->exception_type) /*Might be set by check_interface_method_override*/
4210 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
4214 g_assert (vtable [im_slot] == override_im);
4219 // If the class is not abstract, check that all its interface slots are full.
4220 // The check is done here and not directly at the end of the loop above because
4221 // it can happen (for injected generic array interfaces) that the same slot is
4222 // processed multiple times (those interfaces have overlapping slots), and it
4223 // will not always be the first pass the one that fills the slot.
4224 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4225 for (i = 0; i < class->interface_offsets_count; i++) {
4229 ic = class->interfaces_packed [i];
4230 ic_offset = mono_class_interface_offset (class, ic);
4232 for (im_index = 0; im_index < ic->method.count; im_index++) {
4233 MonoMethod *im = ic->methods [im_index];
4234 int im_slot = ic_offset + im->slot;
4236 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4239 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
4240 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
4241 if (vtable [im_slot] == NULL) {
4242 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
4249 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
4251 for (l = virt_methods; l; l = l->next) {
4254 * If the method is REUSE_SLOT, we must check in the
4255 * base class for a method to override.
4257 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
4259 for (k = class->parent; k ; k = k->parent) {
4264 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
4265 MonoMethodSignature *cmsig, *m1sig;
4267 cmsig = mono_method_signature (cm);
4268 m1sig = mono_method_signature (m1);
4270 if (!cmsig || !m1sig) {
4271 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4275 if (!strcmp(cm->name, m1->name) &&
4276 mono_metadata_signature_equal (cmsig, m1sig)) {
4278 /* CAS - SecurityAction.InheritanceDemand */
4279 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
4280 mono_secman_inheritancedemand_method (cm, m1);
4283 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4284 mono_security_core_clr_check_override (class, cm, m1);
4286 slot = mono_method_get_vtable_slot (m1);
4290 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, m1, NULL)) {
4291 char *body_name = mono_method_full_name (cm, TRUE);
4292 char *decl_name = mono_method_full_name (m1, TRUE);
4293 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Method %s overrides method '%s' which is not accessible", body_name, decl_name));
4299 g_assert (cm->slot < max_vtsize);
4301 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4302 TRACE_INTERFACE_VTABLE (printf ("adding iface override from %s [%p] to %s [%p]\n",
4303 mono_method_full_name (m1, 1), m1,
4304 mono_method_full_name (cm, 1), cm));
4305 g_hash_table_insert (override_map, m1, cm);
4309 if (k->exception_type)
4319 /*Non final newslot methods must be given a non-interface vtable slot*/
4320 if ((cm->flags & METHOD_ATTRIBUTE_NEW_SLOT) && !(cm->flags & METHOD_ATTRIBUTE_FINAL) && cm->slot >= 0)
4324 cm->slot = cur_slot++;
4326 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
4327 vtable [cm->slot] = cm;
4330 /* override non interface methods */
4331 for (i = 0; i < onum; i++) {
4332 MonoMethod *decl = overrides [i*2];
4333 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
4334 g_assert (decl->slot != -1);
4335 vtable [decl->slot] = overrides [i*2 + 1];
4336 overrides [i * 2 + 1]->slot = decl->slot;
4338 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4339 TRACE_INTERFACE_VTABLE (printf ("adding explicit override from %s [%p] to %s [%p]\n",
4340 mono_method_full_name (decl, 1), decl,
4341 mono_method_full_name (overrides [i * 2 + 1], 1), overrides [i * 2 + 1]));
4342 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
4344 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4345 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
4350 * If a method occupies more than one place in the vtable, and it is
4351 * overriden, then change the other occurances too.
4356 for (i = 0; i < max_vtsize; ++i)
4358 TRACE_INTERFACE_VTABLE (printf ("checking slot %d method %s[%p] for overrides\n", i, mono_method_full_name (vtable [i], 1), vtable [i]));
4360 cm = g_hash_table_lookup (override_map, vtable [i]);
4365 g_hash_table_destroy (override_map);
4366 override_map = NULL;
4369 g_slist_free (virt_methods);
4370 virt_methods = NULL;
4372 /* Ensure that all vtable slots are filled with concrete instance methods */
4373 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4374 for (i = 0; i < cur_slot; ++i) {
4375 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
4376 char *type_name = mono_type_get_full_name (class);
4377 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
4378 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Type %s has invalid vtable method slot %d with method %s", type_name, i, method_name));
4380 g_free (method_name);
4386 if (class->generic_class) {
4387 MonoClass *gklass = class->generic_class->container_class;
4389 mono_class_init (gklass);
4391 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
4393 /* Check that the vtable_size value computed in mono_class_init () is correct */
4394 if (class->vtable_size)
4395 g_assert (cur_slot == class->vtable_size);
4396 class->vtable_size = cur_slot;
4399 /* Try to share the vtable with our parent. */
4400 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
4401 mono_memory_barrier ();
4402 class->vtable = class->parent->vtable;
4404 MonoMethod **tmp = mono_class_alloc0 (class, sizeof (gpointer) * class->vtable_size);
4405 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
4406 mono_memory_barrier ();
4407 class->vtable = tmp;
4410 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
4411 if (mono_print_vtable) {
4414 print_implemented_interfaces (class);
4416 for (i = 0; i <= max_iid; i++)
4417 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
4420 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
4421 class->vtable_size, icount);
4423 for (i = 0; i < cur_slot; ++i) {
4428 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
4429 mono_method_full_name (cm, TRUE));
4435 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
4436 class->name, max_iid);
4438 for (i = 0; i < class->interface_count; i++) {
4439 ic = class->interfaces [i];
4440 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
4441 mono_class_interface_offset (class, ic),
4442 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4445 for (k = class->parent; k ; k = k->parent) {
4446 for (i = 0; i < k->interface_count; i++) {
4447 ic = k->interfaces [i];
4448 printf (" parent slot offset: %03d, method count: %03d, iid: %03d %s\n",
4449 mono_class_interface_offset (class, ic),
4450 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4456 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
4461 char *name = mono_type_get_full_name (class);
4462 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("VTable setup of type %s failed", name));
4465 g_hash_table_destroy (override_map);
4467 g_slist_free (virt_methods);
4472 * mono_method_get_vtable_slot:
4474 * Returns method->slot, computing it if neccesary. Return -1 on failure.
4475 * LOCKING: Acquires the loader lock.
4477 * FIXME Use proper MonoError machinery here.
4480 mono_method_get_vtable_slot (MonoMethod *method)
4482 if (method->slot == -1) {
4483 mono_class_setup_vtable (method->klass);
4484 if (method->klass->exception_type)
4486 g_assert (method->slot != -1);
4488 return method->slot;
4492 * mono_method_get_vtable_index:
4495 * Returns the index into the runtime vtable to access the method or,
4496 * in the case of a virtual generic method, the virtual generic method
4497 * thunk. Returns -1 on failure.
4499 * FIXME Use proper MonoError machinery here.
4502 mono_method_get_vtable_index (MonoMethod *method)
4504 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
4505 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4506 if (imethod->declaring->is_generic)
4507 return mono_method_get_vtable_slot (imethod->declaring);
4509 return mono_method_get_vtable_slot (method);
4512 static MonoMethod *default_ghc = NULL;
4513 static MonoMethod *default_finalize = NULL;
4514 static int finalize_slot = -1;
4515 static int ghc_slot = -1;
4518 initialize_object_slots (MonoClass *class)
4523 if (class == mono_defaults.object_class) {
4524 mono_class_setup_vtable (class);
4525 for (i = 0; i < class->vtable_size; ++i) {
4526 MonoMethod *cm = class->vtable [i];
4528 if (!strcmp (cm->name, "GetHashCode"))
4530 else if (!strcmp (cm->name, "Finalize"))
4534 g_assert (ghc_slot > 0);
4535 default_ghc = class->vtable [ghc_slot];
4537 g_assert (finalize_slot > 0);
4538 default_finalize = class->vtable [finalize_slot];
4543 MonoMethod *array_method;
4545 } GenericArrayMethodInfo;
4547 static int generic_array_method_num = 0;
4548 static GenericArrayMethodInfo *generic_array_method_info = NULL;
4551 generic_array_methods (MonoClass *class)
4553 int i, count_generic = 0;
4554 GList *list = NULL, *tmp;
4555 if (generic_array_method_num)
4556 return generic_array_method_num;
4557 mono_class_setup_methods (class->parent); /*This is setting up System.Array*/
4558 g_assert (!class->parent->exception_type); /*So hitting this assert is a huge problem*/
4559 for (i = 0; i < class->parent->method.count; i++) {
4560 MonoMethod *m = class->parent->methods [i];
4561 if (!strncmp (m->name, "InternalArray__", 15)) {
4563 list = g_list_prepend (list, m);
4566 list = g_list_reverse (list);
4567 generic_array_method_info = mono_image_alloc (mono_defaults.corlib, sizeof (GenericArrayMethodInfo) * count_generic);
4569 for (tmp = list; tmp; tmp = tmp->next) {
4570 const char *mname, *iname;
4572 MonoMethod *m = tmp->data;
4573 generic_array_method_info [i].array_method = m;
4574 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
4575 iname = "System.Collections.Generic.ICollection`1.";
4576 mname = m->name + 27;
4577 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
4578 iname = "System.Collections.Generic.IEnumerable`1.";
4579 mname = m->name + 27;
4580 } else if (!strncmp (m->name, "InternalArray__", 15)) {
4581 iname = "System.Collections.Generic.IList`1.";
4582 mname = m->name + 15;
4584 g_assert_not_reached ();
4587 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
4588 strcpy (name, iname);
4589 strcpy (name + strlen (iname), mname);
4590 generic_array_method_info [i].name = name;
4593 /*g_print ("array generic methods: %d\n", count_generic);*/
4595 generic_array_method_num = count_generic;
4597 return generic_array_method_num;
4601 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
4603 MonoGenericContext tmp_context;
4606 tmp_context.class_inst = NULL;
4607 tmp_context.method_inst = iface->generic_class->context.class_inst;
4608 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
4610 for (i = 0; i < generic_array_method_num; i++) {
4611 MonoMethod *m = generic_array_method_info [i].array_method;
4612 MonoMethod *inflated;
4614 inflated = mono_class_inflate_generic_method (m, &tmp_context);
4615 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
4620 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
4622 int null_length = strlen ("(null)");
4623 int len = (s1 ? strlen (s1) : null_length) + (s2 ? strlen (s2) : null_length) + 2;
4624 char *s = mono_image_alloc (image, len);
4627 result = g_snprintf (s, len, "%s%c%s", s1 ? s1 : "(null)", '\0', s2 ? s2 : "(null)");
4628 g_assert (result == len - 1);
4634 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
4636 gpointer exception_data = NULL;
4638 switch (error->exception_type) {
4639 case MONO_EXCEPTION_TYPE_LOAD:
4640 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
4643 case MONO_EXCEPTION_MISSING_METHOD:
4644 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
4647 case MONO_EXCEPTION_MISSING_FIELD: {
4648 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
4649 const char *class_name;
4652 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
4654 class_name = error->klass->name;
4656 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
4659 g_free ((void*)class_name);
4663 case MONO_EXCEPTION_FILE_NOT_FOUND: {
4666 if (error->ref_only)
4667 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.";
4669 msg = "Could not load file or assembly '%s' or one of its dependencies.";
4671 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
4675 case MONO_EXCEPTION_BAD_IMAGE:
4676 exception_data = error->msg;
4680 g_assert_not_reached ();
4683 mono_class_set_failure (class, error->exception_type, exception_data);
4688 * @class: the class to initialize
4690 * Compute the instance_size, class_size and other infos that cannot be
4691 * computed at mono_class_get() time. Also compute vtable_size if possible.
4692 * Returns TRUE on success or FALSE if there was a problem in loading
4693 * the type (incorrect assemblies, missing assemblies, methods, etc).
4695 * LOCKING: Acquires the loader lock.
4698 mono_class_init (MonoClass *class)
4701 MonoCachedClassInfo cached_info;
4702 gboolean has_cached_info;
4706 /* Double-checking locking pattern */
4707 if (class->inited || class->exception_type)
4708 return class->exception_type == MONO_EXCEPTION_NONE;
4710 /*g_print ("Init class %s\n", mono_type_get_full_name (class));*/
4712 /* We do everything inside the lock to prevent races */
4713 mono_loader_lock ();
4715 if (class->inited || class->exception_type) {
4716 mono_loader_unlock ();
4717 /* Somebody might have gotten in before us */
4718 return class->exception_type == MONO_EXCEPTION_NONE;
4721 if (class->init_pending) {
4722 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Recursive type definition detected"));
4726 class->init_pending = 1;
4728 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4729 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4734 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
4735 MonoClass *element_class = class->element_class;
4736 if (!element_class->inited)
4737 mono_class_init (element_class);
4738 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
4739 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4744 /* CAS - SecurityAction.InheritanceDemand */
4745 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
4746 mono_secman_inheritancedemand_class (class, class->parent);
4749 mono_stats.initialized_class_count++;
4751 if (class->generic_class && !class->generic_class->is_dynamic) {
4752 MonoClass *gklass = class->generic_class->container_class;
4754 mono_stats.generic_class_count++;
4756 class->method = gklass->method;
4757 class->field = gklass->field;
4759 mono_class_init (gklass);
4760 // FIXME: Why is this needed ?
4761 if (!gklass->exception_type)
4762 mono_class_setup_methods (gklass);
4763 if (gklass->exception_type) {
4764 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Generic Type Defintion failed to init"));
4768 if (MONO_CLASS_IS_INTERFACE (class))
4769 class->interface_id = mono_get_unique_iid (class);
4772 if (class->parent && !class->parent->inited)
4773 mono_class_init (class->parent);
4775 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
4777 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
4778 class->nested_classes_inited = TRUE;
4781 * Computes the size used by the fields, and their locations
4783 if (has_cached_info) {
4784 class->instance_size = cached_info.instance_size;
4785 class->sizes.class_size = cached_info.class_size;
4786 class->packing_size = cached_info.packing_size;
4787 class->min_align = cached_info.min_align;
4788 class->blittable = cached_info.blittable;
4789 class->has_references = cached_info.has_references;
4790 class->has_static_refs = cached_info.has_static_refs;
4791 class->no_special_static_fields = cached_info.no_special_static_fields;
4794 if (!class->size_inited){
4795 mono_class_setup_fields (class);
4796 if (class->exception_type || mono_loader_get_last_error ())
4800 /* Initialize arrays */
4802 class->method.count = 3 + (class->rank > 1? 2: 1);
4804 if (class->interface_count) {
4805 int count_generic = generic_array_methods (class);
4806 class->method.count += class->interface_count * count_generic;
4810 mono_class_setup_supertypes (class);
4813 initialize_object_slots (class);
4816 * Initialize the rest of the data without creating a generic vtable if possible.
4817 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
4818 * also avoid computing a generic vtable.
4820 if (has_cached_info) {
4822 class->vtable_size = cached_info.vtable_size;
4823 class->has_finalize = cached_info.has_finalize;
4824 class->has_finalize_inited = TRUE;
4825 class->ghcimpl = cached_info.ghcimpl;
4826 class->has_cctor = cached_info.has_cctor;
4827 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
4828 /* SZARRAY can have 2 vtable layouts, with and without the stelemref method.
4829 * The first slot if for array with.
4831 static int szarray_vtable_size[2] = { 0 };
4833 int slot = MONO_TYPE_IS_REFERENCE (&class->element_class->byval_arg) ? 0 : 1;
4836 if (!szarray_vtable_size [slot]) {
4837 mono_class_setup_vtable (class);
4838 szarray_vtable_size [slot] = class->vtable_size;
4840 class->vtable_size = szarray_vtable_size[slot];
4842 class->has_finalize_inited = TRUE;
4843 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
4844 MonoClass *gklass = class->generic_class->container_class;
4846 /* Generic instance case */
4847 class->ghcimpl = gklass->ghcimpl;
4848 class->has_finalize = mono_class_has_finalizer (gklass);
4849 class->has_finalize_inited = TRUE;
4850 class->has_cctor = gklass->has_cctor;
4852 mono_class_setup_vtable (gklass);
4853 if (gklass->exception_type) {
4854 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4858 class->vtable_size = gklass->vtable_size;
4862 /* ghcimpl is not currently used
4864 if (class->parent) {
4865 MonoMethod *cmethod = class->vtable [ghc_slot];
4866 if (cmethod->is_inflated)
4867 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4868 if (cmethod == default_ghc) {
4874 /* C# doesn't allow interfaces to have cctors */
4875 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4876 MonoMethod *cmethod = NULL;
4878 if (class->type_token) {
4879 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4880 /* The find_method function ignores the 'flags' argument */
4881 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4882 class->has_cctor = 1;
4884 mono_class_setup_methods (class);
4885 if (class->exception_type)
4888 for (i = 0; i < class->method.count; ++i) {
4889 MonoMethod *method = class->methods [i];
4890 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4891 (strcmp (".cctor", method->name) == 0)) {
4892 class->has_cctor = 1;
4900 if (class->parent) {
4901 int first_iface_slot;
4902 /* This will compute class->parent->vtable_size for some classes */
4903 mono_class_init (class->parent);
4904 if (class->parent->exception_type) {
4905 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4908 if (mono_loader_get_last_error ())
4910 if (!class->parent->vtable_size) {
4911 /* FIXME: Get rid of this somehow */
4912 mono_class_setup_vtable (class->parent);
4913 if (class->parent->exception_type) {
4914 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4917 if (mono_loader_get_last_error ())
4920 first_iface_slot = class->parent->vtable_size;
4921 if (mono_class_need_stelemref_method (class))
4923 setup_interface_offsets (class, first_iface_slot, TRUE);
4925 setup_interface_offsets (class, 0, TRUE);
4928 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4929 mono_security_core_clr_check_inheritance (class);
4931 if (mono_loader_get_last_error ()) {
4932 if (class->exception_type == MONO_EXCEPTION_NONE) {
4933 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4935 mono_loader_clear_error ();
4938 if (class->generic_class && !mono_verifier_class_is_valid_generic_instantiation (class))
4939 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Invalid generic instantiation"));
4944 /* Because of the double-checking locking pattern */
4945 mono_memory_barrier ();
4947 class->init_pending = 0;
4949 mono_loader_unlock ();
4951 if (mono_debugger_class_init_func)
4952 mono_debugger_class_init_func (class);
4954 return class->exception_type == MONO_EXCEPTION_NONE;
4958 * mono_class_has_finalizer:
4960 * Return whenever KLASS has a finalizer, initializing klass->has_finalizer in the
4964 mono_class_has_finalizer (MonoClass *klass)
4966 if (!klass->has_finalize_inited) {
4967 MonoClass *class = klass;
4969 mono_loader_lock ();
4971 /* Interfaces and valuetypes are not supposed to have finalizers */
4972 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
4973 MonoMethod *cmethod = NULL;
4975 if (class->parent && class->parent->has_finalize) {
4976 class->has_finalize = 1;
4978 if (class->parent) {
4980 * Can't search in metadata for a method named Finalize, because that
4981 * ignores overrides.
4983 mono_class_setup_vtable (class);
4984 if (class->exception_type || mono_loader_get_last_error ())
4986 cmethod = class->vtable [finalize_slot];
4990 g_assert (class->vtable_size > finalize_slot);
4992 class->has_finalize = 0;
4993 if (class->parent) {
4994 if (cmethod->is_inflated)
4995 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4996 if (cmethod != default_finalize) {
4997 class->has_finalize = 1;
5004 mono_memory_barrier ();
5005 klass->has_finalize_inited = TRUE;
5007 mono_loader_unlock ();
5010 return klass->has_finalize;
5013 mono_loader_unlock ();
5018 mono_is_corlib_image (MonoImage *image)
5020 /* FIXME: allow the dynamic case for our compilers and with full trust */
5022 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
5024 return image == mono_defaults.corlib;
5028 * LOCKING: this assumes the loader lock is held
5031 mono_class_setup_mono_type (MonoClass *class)
5033 const char *name = class->name;
5034 const char *nspace = class->name_space;
5035 gboolean is_corlib = mono_is_corlib_image (class->image);
5037 class->this_arg.byref = 1;
5038 class->this_arg.data.klass = class;
5039 class->this_arg.type = MONO_TYPE_CLASS;
5040 class->byval_arg.data.klass = class;
5041 class->byval_arg.type = MONO_TYPE_CLASS;
5043 if (is_corlib && !strcmp (nspace, "System")) {
5044 if (!strcmp (name, "ValueType")) {
5046 * do not set the valuetype bit for System.ValueType.
5047 * class->valuetype = 1;
5049 class->blittable = TRUE;
5050 } else if (!strcmp (name, "Enum")) {
5052 * do not set the valuetype bit for System.Enum.
5053 * class->valuetype = 1;
5055 class->valuetype = 0;
5056 class->enumtype = 0;
5057 } else if (!strcmp (name, "Object")) {
5058 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
5059 } else if (!strcmp (name, "String")) {
5060 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
5061 } else if (!strcmp (name, "TypedReference")) {
5062 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
5066 if (class->valuetype) {
5067 int t = MONO_TYPE_VALUETYPE;
5069 if (is_corlib && !strcmp (nspace, "System")) {
5072 if (!strcmp (name, "Boolean")) {
5073 t = MONO_TYPE_BOOLEAN;
5074 } else if (!strcmp(name, "Byte")) {
5076 class->blittable = TRUE;
5080 if (!strcmp (name, "Char")) {
5085 if (!strcmp (name, "Double")) {
5087 class->blittable = TRUE;
5091 if (!strcmp (name, "Int32")) {
5093 class->blittable = TRUE;
5094 } else if (!strcmp(name, "Int16")) {
5096 class->blittable = TRUE;
5097 } else if (!strcmp(name, "Int64")) {
5099 class->blittable = TRUE;
5100 } else if (!strcmp(name, "IntPtr")) {
5102 class->blittable = TRUE;
5106 if (!strcmp (name, "Single")) {
5108 class->blittable = TRUE;
5109 } else if (!strcmp(name, "SByte")) {
5111 class->blittable = TRUE;
5115 if (!strcmp (name, "UInt32")) {
5117 class->blittable = TRUE;
5118 } else if (!strcmp(name, "UInt16")) {
5120 class->blittable = TRUE;
5121 } else if (!strcmp(name, "UInt64")) {
5123 class->blittable = TRUE;
5124 } else if (!strcmp(name, "UIntPtr")) {
5126 class->blittable = TRUE;
5130 if (!strcmp (name, "TypedReference")) {
5131 t = MONO_TYPE_TYPEDBYREF;
5132 class->blittable = TRUE;
5136 if (!strcmp (name, "Void")) {
5144 class->this_arg.type = class->byval_arg.type = t;
5147 if (MONO_CLASS_IS_INTERFACE (class))
5148 class->interface_id = mono_get_unique_iid (class);
5153 * COM initialization (using mono_init_com_types) is delayed until needed.
5154 * However when a [ComImport] attribute is present on a type it will trigger
5155 * the initialization. This is not a problem unless the BCL being executed
5156 * lacks the types that COM depends on (e.g. Variant on Silverlight).
5159 init_com_from_comimport (MonoClass *class)
5161 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
5162 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)) {
5163 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
5164 if (!mono_security_core_clr_determine_platform_image (class->image)) {
5165 /* but it can not be made available for application (i.e. user code) since all COM calls
5166 * are considered native calls. In this case we fail with a TypeLoadException (just like
5167 * Silverlight 2 does */
5168 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5172 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
5173 mono_init_com_types ();
5177 * LOCKING: this assumes the loader lock is held
5180 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
5182 gboolean system_namespace;
5183 gboolean is_corlib = mono_is_corlib_image (class->image);
5185 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
5187 /* if root of the hierarchy */
5188 if (system_namespace && !strcmp (class->name, "Object")) {
5189 class->parent = NULL;
5190 class->instance_size = sizeof (MonoObject);
5193 if (!strcmp (class->name, "<Module>")) {
5194 class->parent = NULL;
5195 class->instance_size = 0;
5199 if (!MONO_CLASS_IS_INTERFACE (class)) {
5200 /* Imported COM Objects always derive from __ComObject. */
5201 if (MONO_CLASS_IS_IMPORT (class)) {
5202 init_com_from_comimport (class);
5203 if (parent == mono_defaults.object_class)
5204 parent = mono_defaults.com_object_class;
5207 /* set the parent to something useful and safe, but mark the type as broken */
5208 parent = mono_defaults.object_class;
5209 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5212 class->parent = parent;
5214 if (parent->generic_class && !parent->name) {
5216 * If the parent is a generic instance, we may get
5217 * called before it is fully initialized, especially
5218 * before it has its name.
5223 class->marshalbyref = parent->marshalbyref;
5224 class->contextbound = parent->contextbound;
5225 class->delegate = parent->delegate;
5226 if (MONO_CLASS_IS_IMPORT (class))
5227 class->is_com_object = 1;
5229 class->is_com_object = parent->is_com_object;
5231 if (system_namespace) {
5232 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
5233 class->marshalbyref = 1;
5235 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
5236 class->contextbound = 1;
5238 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
5239 class->delegate = 1;
5242 if (class->parent->enumtype || (mono_is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
5243 (strcmp (class->parent->name_space, "System") == 0)))
5244 class->valuetype = 1;
5245 if (mono_is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
5246 class->valuetype = class->enumtype = 1;
5248 /*class->enumtype = class->parent->enumtype; */
5250 /* initialize com types if COM interfaces are present */
5251 if (MONO_CLASS_IS_IMPORT (class))
5252 init_com_from_comimport (class);
5253 class->parent = NULL;
5259 * mono_class_setup_supertypes:
5262 * Build the data structure needed to make fast type checks work.
5263 * This currently sets two fields in @class:
5264 * - idepth: distance between @class and System.Object in the type
5266 * - supertypes: array of classes: each element has a class in the hierarchy
5267 * starting from @class up to System.Object
5269 * LOCKING: this assumes the loader lock is held
5272 mono_class_setup_supertypes (MonoClass *class)
5275 MonoClass **supertypes;
5277 if (class->supertypes)
5280 if (class->parent && !class->parent->supertypes)
5281 mono_class_setup_supertypes (class->parent);
5283 class->idepth = class->parent->idepth + 1;
5287 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
5288 supertypes = mono_class_alloc0 (class, sizeof (MonoClass *) * ms);
5290 if (class->parent) {
5291 supertypes [class->idepth - 1] = class;
5292 memcpy (supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
5294 supertypes [0] = class;
5297 mono_atomic_store_release (&class->supertypes, supertypes);
5301 * mono_class_create_from_typedef:
5302 * @image: image where the token is valid
5303 * @type_token: typedef token
5305 * Create the MonoClass* representing the specified type token.
5306 * @type_token must be a TypeDef token.
5308 * FIXME: don't return NULL on failure, just the the caller figure it out.
5311 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
5313 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5314 MonoClass *class, *parent = NULL;
5315 guint32 cols [MONO_TYPEDEF_SIZE];
5316 guint32 cols_next [MONO_TYPEDEF_SIZE];
5317 guint tidx = mono_metadata_token_index (type_token);
5318 MonoGenericContext *context = NULL;
5319 const char *name, *nspace;
5321 MonoClass **interfaces;
5322 guint32 field_last, method_last;
5323 guint32 nesting_tokeen;
5325 if (mono_metadata_token_table (type_token) != MONO_TABLE_TYPEDEF || tidx > tt->rows)
5328 mono_loader_lock ();
5330 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
5331 mono_loader_unlock ();
5335 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5337 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5338 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5340 class = mono_image_alloc0 (image, sizeof (MonoClass));
5343 class->name_space = nspace;
5345 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5347 class->image = image;
5348 class->type_token = type_token;
5349 class->flags = cols [MONO_TYPEDEF_FLAGS];
5351 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
5353 classes_size += sizeof (MonoClass);
5356 * Check whether we're a generic type definition.
5358 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
5359 if (class->generic_container) {
5360 class->is_generic = 1;
5361 class->generic_container->owner.klass = class;
5362 context = &class->generic_container->context;
5365 if (cols [MONO_TYPEDEF_EXTENDS]) {
5367 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
5369 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
5370 /*WARNING: this must satisfy mono_metadata_type_hash*/
5371 class->this_arg.byref = 1;
5372 class->this_arg.data.klass = class;
5373 class->this_arg.type = MONO_TYPE_CLASS;
5374 class->byval_arg.data.klass = class;
5375 class->byval_arg.type = MONO_TYPE_CLASS;
5377 parent = mono_class_get_full (image, parent_token, context);
5379 if (parent == NULL){
5380 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load parent type"));
5381 mono_loader_clear_error ();
5382 goto parent_failure;
5385 for (tmp = parent; tmp; tmp = tmp->parent) {
5387 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cycle found while resolving parent"));
5388 goto parent_failure;
5390 if (class->generic_container && tmp->generic_class && tmp->generic_class->container_class == class) {
5391 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Parent extends generic instance of this type"));
5392 goto parent_failure;
5397 mono_class_setup_parent (class, parent);
5399 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5400 mono_class_setup_mono_type (class);
5403 * This might access class->byval_arg for recursion generated by generic constraints,
5404 * so it has to come after setup_mono_type ().
5406 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token))) {
5407 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
5408 if (!class->nested_in) {
5409 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load nestedin type"));
5410 mono_loader_unlock ();
5411 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5416 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
5420 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
5424 class->cast_class = class->element_class = class;
5426 if (!class->enumtype) {
5427 if (!mono_metadata_interfaces_from_typedef_full (
5428 image, type_token, &interfaces, &icount, FALSE, context)){
5429 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load interfaces"));
5430 mono_loader_unlock ();
5431 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5435 class->interfaces = interfaces;
5436 class->interface_count = icount;
5437 class->interfaces_inited = 1;
5440 /*g_print ("Load class %s\n", name);*/
5443 * Compute the field and method lists
5445 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
5446 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
5448 if (tt->rows > tidx){
5449 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
5450 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
5451 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
5453 field_last = image->tables [MONO_TABLE_FIELD].rows;
5454 method_last = image->tables [MONO_TABLE_METHOD].rows;
5457 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
5458 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
5459 class->field.count = field_last - class->field.first;
5461 class->field.count = 0;
5463 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
5464 class->method.count = method_last - class->method.first;
5466 class->method.count = 0;
5468 /* reserve space to store vector pointer in arrays */
5469 if (mono_is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
5470 class->instance_size += 2 * sizeof (gpointer);
5471 g_assert (class->field.count == 0);
5474 if (class->enumtype) {
5475 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
5476 if (!enum_basetype) {
5477 /*set it to a default value as the whole runtime can't handle this to be null*/
5478 class->cast_class = class->element_class = mono_defaults.int32_class;
5479 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5480 mono_loader_unlock ();
5481 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5484 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
5488 * If we're a generic type definition, load the constraints.
5489 * We must do this after the class has been constructed to make certain recursive scenarios
5492 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
5493 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
5494 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
5495 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
5496 g_free (class_name);
5497 mono_loader_unlock ();
5498 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5502 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
5503 if (!strncmp (name, "Vector", 6))
5504 class->simd_type = !strcmp (name + 6, "2d") || !strcmp (name + 6, "2ul") || !strcmp (name + 6, "2l") || !strcmp (name + 6, "4f") || !strcmp (name + 6, "4ui") || !strcmp (name + 6, "4i") || !strcmp (name + 6, "8s") || !strcmp (name + 6, "8us") || !strcmp (name + 6, "16b") || !strcmp (name + 6, "16sb");
5507 mono_loader_unlock ();
5509 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5514 mono_class_setup_mono_type (class);
5515 mono_loader_unlock ();
5516 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5521 /** is klass Nullable<T>? */
5523 mono_class_is_nullable (MonoClass *klass)
5525 return klass->generic_class != NULL &&
5526 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
5530 /** if klass is T? return T */
5532 mono_class_get_nullable_param (MonoClass *klass)
5534 g_assert (mono_class_is_nullable (klass));
5535 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
5539 * Create the `MonoClass' for an instantiation of a generic type.
5540 * We only do this if we actually need it.
5543 mono_generic_class_get_class (MonoGenericClass *gclass)
5545 MonoClass *klass, *gklass;
5547 if (gclass->cached_class)
5548 return gclass->cached_class;
5550 mono_loader_lock ();
5551 if (gclass->cached_class) {
5552 mono_loader_unlock ();
5553 return gclass->cached_class;
5556 klass = mono_image_set_alloc0 (gclass->owner, sizeof (MonoClass));
5558 gklass = gclass->container_class;
5560 if (gklass->nested_in) {
5561 /* The nested_in type should not be inflated since it's possible to produce a nested type with less generic arguments*/
5562 klass->nested_in = gklass->nested_in;
5565 klass->name = gklass->name;
5566 klass->name_space = gklass->name_space;
5568 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5570 klass->image = gklass->image;
5571 klass->flags = gklass->flags;
5572 klass->type_token = gklass->type_token;
5573 klass->field.count = gklass->field.count;
5575 klass->is_inflated = 1;
5576 klass->generic_class = gclass;
5578 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
5579 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
5580 klass->this_arg.byref = TRUE;
5581 klass->enumtype = gklass->enumtype;
5582 klass->valuetype = gklass->valuetype;
5584 klass->cast_class = klass->element_class = klass;
5586 if (mono_class_is_nullable (klass))
5587 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
5590 * We're not interested in the nested classes of a generic instance.
5591 * We use the generic type definition to look for nested classes.
5594 if (gklass->parent) {
5596 klass->parent = mono_class_inflate_generic_class_checked (gklass->parent, mono_generic_class_get_context (gclass), &error);
5597 if (!mono_error_ok (&error)) {
5598 /*Set parent to something safe as the runtime doesn't handle well this kind of failure.*/
5599 klass->parent = mono_defaults.object_class;
5600 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
5601 mono_error_cleanup (&error);
5606 mono_class_setup_parent (klass, klass->parent);
5608 if (klass->enumtype) {
5609 klass->cast_class = gklass->cast_class;
5610 klass->element_class = gklass->element_class;
5613 if (gclass->is_dynamic) {
5616 mono_class_setup_supertypes (klass);
5618 if (klass->enumtype) {
5620 * For enums, gklass->fields might not been set, but instance_size etc. is
5621 * already set in mono_reflection_create_internal_class (). For non-enums,
5622 * these will be computed normally in mono_class_layout_fields ().
5624 klass->instance_size = gklass->instance_size;
5625 klass->sizes.class_size = gklass->sizes.class_size;
5626 klass->size_inited = 1;
5630 mono_memory_barrier ();
5631 gclass->cached_class = klass;
5633 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5635 inflated_classes ++;
5636 inflated_classes_size += sizeof (MonoClass);
5638 mono_loader_unlock ();
5644 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
5646 MonoClass *klass, **ptr;
5648 MonoGenericContainer *container = mono_generic_param_owner (param);
5652 image = mono_defaults.corlib;
5654 klass = mono_image_alloc0 (image, sizeof (MonoClass));
5655 classes_size += sizeof (MonoClass);
5658 klass->name = pinfo->name;
5660 int n = mono_generic_param_num (param);
5661 klass->name = mono_image_alloc0 (image, 16);
5662 sprintf ((char*)klass->name, "%d", n);
5667 MonoMethod *omethod = container->owner.method;
5668 klass->name_space = (omethod && omethod->klass) ? omethod->klass->name_space : "";
5670 MonoClass *oklass = container->owner.klass;
5671 klass->name_space = oklass ? oklass->name_space : "";
5674 klass->name_space = "";
5677 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5681 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
5685 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
5686 klass->parent = pinfo->constraints [0];
5688 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
5689 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
5691 klass->parent = mono_defaults.object_class;
5694 if (count - pos > 0) {
5695 klass->interface_count = count - pos;
5696 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
5697 klass->interfaces_inited = TRUE;
5698 for (i = pos; i < count; i++)
5699 klass->interfaces [i - pos] = pinfo->constraints [i];
5702 klass->image = image;
5704 klass->inited = TRUE;
5705 klass->cast_class = klass->element_class = klass;
5706 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
5708 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5709 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
5710 klass->this_arg.byref = TRUE;
5712 /* We don't use type_token for VAR since only classes can use it (not arrays, pointer, VARs, etc) */
5713 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
5715 /*Init these fields to sane values*/
5716 klass->min_align = 1;
5717 klass->instance_size = sizeof (gpointer);
5718 klass->size_inited = 1;
5720 mono_class_setup_supertypes (klass);
5722 if (count - pos > 0) {
5723 mono_class_setup_vtable (klass->parent);
5724 if (klass->parent->exception_type)
5725 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to setup parent interfaces"));
5727 setup_interface_offsets (klass, klass->parent->vtable_size, TRUE);
5733 #define FAST_CACHE_SIZE 16
5736 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
5738 int n = mono_generic_param_num (param);
5739 MonoImage *image = param->image;
5744 if (n < FAST_CACHE_SIZE) {
5746 return image->mvar_cache_fast ? image->mvar_cache_fast [n] : NULL;
5748 return image->var_cache_fast ? image->var_cache_fast [n] : NULL;
5750 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5751 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
5756 * LOCKING: Acquires the loader lock.
5759 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
5761 int n = mono_generic_param_num (param);
5762 MonoImage *image = param->image;
5767 if (n < FAST_CACHE_SIZE) {
5769 /* No locking needed */
5770 if (!image->mvar_cache_fast)
5771 image->mvar_cache_fast = mono_image_alloc0 (image, sizeof (MonoClass*) * FAST_CACHE_SIZE);
5772 image->mvar_cache_fast [n] = klass;
5774 if (!image->var_cache_fast)
5775 image->var_cache_fast = mono_image_alloc0 (image, sizeof (MonoClass*) * FAST_CACHE_SIZE);
5776 image->var_cache_fast [n] = klass;
5780 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5782 mono_loader_lock ();
5783 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5785 ht = g_hash_table_new (NULL, NULL);
5786 mono_memory_barrier ();
5788 image->mvar_cache_slow = ht;
5790 image->var_cache_slow = ht;
5792 mono_loader_unlock ();
5795 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
5799 * LOCKING: Acquires the loader lock.
5802 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
5804 MonoGenericContainer *container = mono_generic_param_owner (param);
5805 MonoGenericParamInfo *pinfo;
5808 mono_loader_lock ();
5811 pinfo = mono_generic_param_info (param);
5812 if (pinfo->pklass) {
5813 mono_loader_unlock ();
5814 return pinfo->pklass;
5820 klass = get_anon_gparam_class (param, is_mvar);
5822 mono_loader_unlock ();
5827 if (!image && container) {
5829 MonoMethod *method = container->owner.method;
5830 image = (method && method->klass) ? method->klass->image : NULL;
5832 MonoClass *klass = container->owner.klass;
5833 // FIXME: 'klass' should not be null
5834 // But, monodis creates GenericContainers without associating a owner to it
5835 image = klass ? klass->image : NULL;
5839 klass = make_generic_param_class (param, image, is_mvar, pinfo);
5841 mono_memory_barrier ();
5844 pinfo->pklass = klass;
5846 set_anon_gparam_class (param, is_mvar, klass);
5848 mono_loader_unlock ();
5850 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5851 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5857 mono_ptr_class_get (MonoType *type)
5860 MonoClass *el_class;
5864 el_class = mono_class_from_mono_type (type);
5865 image = el_class->image;
5867 mono_loader_lock ();
5869 if (!image->ptr_cache)
5870 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5872 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
5873 mono_loader_unlock ();
5876 result = mono_image_alloc0 (image, sizeof (MonoClass));
5878 classes_size += sizeof (MonoClass);
5880 result->parent = NULL; /* no parent for PTR types */
5881 result->name_space = el_class->name_space;
5882 name = g_strdup_printf ("%s*", el_class->name);
5883 result->name = mono_image_strdup (image, name);
5886 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5888 result->image = el_class->image;
5889 result->inited = TRUE;
5890 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5891 /* Can pointers get boxed? */
5892 result->instance_size = sizeof (gpointer);
5893 result->cast_class = result->element_class = el_class;
5894 result->blittable = TRUE;
5896 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
5897 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
5898 result->this_arg.byref = TRUE;
5900 mono_class_setup_supertypes (result);
5902 g_hash_table_insert (image->ptr_cache, el_class, result);
5904 mono_loader_unlock ();
5906 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5912 mono_fnptr_class_get (MonoMethodSignature *sig)
5915 static GHashTable *ptr_hash = NULL;
5917 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5919 mono_loader_lock ();
5922 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5924 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
5925 mono_loader_unlock ();
5928 result = g_new0 (MonoClass, 1);
5930 result->parent = NULL; /* no parent for PTR types */
5931 result->name_space = "System";
5932 result->name = "MonoFNPtrFakeClass";
5934 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5936 result->image = mono_defaults.corlib; /* need to fix... */
5937 result->inited = TRUE;
5938 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5939 /* Can pointers get boxed? */
5940 result->instance_size = sizeof (gpointer);
5941 result->cast_class = result->element_class = result;
5942 result->blittable = TRUE;
5944 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
5945 result->this_arg.data.method = result->byval_arg.data.method = sig;
5946 result->this_arg.byref = TRUE;
5947 result->blittable = TRUE;
5949 mono_class_setup_supertypes (result);
5951 g_hash_table_insert (ptr_hash, sig, result);
5953 mono_loader_unlock ();
5955 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5961 mono_class_from_mono_type (MonoType *type)
5963 switch (type->type) {
5964 case MONO_TYPE_OBJECT:
5965 return type->data.klass? type->data.klass: mono_defaults.object_class;
5966 case MONO_TYPE_VOID:
5967 return type->data.klass? type->data.klass: mono_defaults.void_class;
5968 case MONO_TYPE_BOOLEAN:
5969 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
5970 case MONO_TYPE_CHAR:
5971 return type->data.klass? type->data.klass: mono_defaults.char_class;
5973 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
5975 return type->data.klass? type->data.klass: mono_defaults.byte_class;
5977 return type->data.klass? type->data.klass: mono_defaults.int16_class;
5979 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
5981 return type->data.klass? type->data.klass: mono_defaults.int32_class;
5983 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
5985 return type->data.klass? type->data.klass: mono_defaults.int_class;
5987 return type->data.klass? type->data.klass: mono_defaults.uint_class;
5989 return type->data.klass? type->data.klass: mono_defaults.int64_class;
5991 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
5993 return type->data.klass? type->data.klass: mono_defaults.single_class;
5995 return type->data.klass? type->data.klass: mono_defaults.double_class;
5996 case MONO_TYPE_STRING:
5997 return type->data.klass? type->data.klass: mono_defaults.string_class;
5998 case MONO_TYPE_TYPEDBYREF:
5999 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
6000 case MONO_TYPE_ARRAY:
6001 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
6003 return mono_ptr_class_get (type->data.type);
6004 case MONO_TYPE_FNPTR:
6005 return mono_fnptr_class_get (type->data.method);
6006 case MONO_TYPE_SZARRAY:
6007 return mono_array_class_get (type->data.klass, 1);
6008 case MONO_TYPE_CLASS:
6009 case MONO_TYPE_VALUETYPE:
6010 return type->data.klass;
6011 case MONO_TYPE_GENERICINST:
6012 return mono_generic_class_get_class (type->data.generic_class);
6014 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
6015 case MONO_TYPE_MVAR:
6016 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
6018 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
6019 g_assert_not_reached ();
6026 * mono_type_retrieve_from_typespec
6027 * @image: context where the image is created
6028 * @type_spec: typespec token
6029 * @context: the generic context used to evaluate generic instantiations in
6032 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate, MonoError *error)
6034 MonoType *t = mono_type_create_from_typespec (image, type_spec);
6036 mono_error_init (error);
6037 *did_inflate = FALSE;
6040 char *name = mono_class_name_from_token (image, type_spec);
6041 char *assembly = mono_assembly_name_from_token (image, type_spec);
6042 mono_error_set_type_load_name (error, name, assembly, "Could not resolve typespec token %08x", type_spec);
6046 if (context && (context->class_inst || context->method_inst)) {
6047 MonoType *inflated = inflate_generic_type (NULL, t, context, error);
6049 if (!mono_error_ok (error))
6054 *did_inflate = TRUE;
6061 * mono_class_create_from_typespec
6062 * @image: context where the image is created
6063 * @type_spec: typespec token
6064 * @context: the generic context used to evaluate generic instantiations in
6067 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, MonoError *error)
6070 gboolean inflated = FALSE;
6071 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated, error);
6072 if (!mono_error_ok (error))
6074 ret = mono_class_from_mono_type (t);
6076 mono_metadata_free_type (t);
6081 * mono_bounded_array_class_get:
6082 * @element_class: element class
6083 * @rank: the dimension of the array class
6084 * @bounded: whenever the array has non-zero bounds
6086 * Returns: a class object describing the array with element type @element_type and
6090 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
6094 MonoClass *parent = NULL;
6095 GSList *list, *rootlist = NULL;
6098 gboolean corlib_type = FALSE;
6100 g_assert (rank <= 255);
6103 /* bounded only matters for one-dimensional arrays */
6106 image = eclass->image;
6108 if (rank == 1 && !bounded) {
6110 * This case is very frequent not just during compilation because of calls
6111 * from mono_class_from_mono_type (), mono_array_new (),
6112 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
6114 EnterCriticalSection (&image->szarray_cache_lock);
6115 if (!image->szarray_cache)
6116 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
6117 class = g_hash_table_lookup (image->szarray_cache, eclass);
6118 LeaveCriticalSection (&image->szarray_cache_lock);
6122 mono_loader_lock ();
6124 mono_loader_lock ();
6126 if (!image->array_cache)
6127 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
6129 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
6130 for (; list; list = list->next) {
6132 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
6133 mono_loader_unlock ();
6140 /* for the building corlib use System.Array from it */
6141 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
6142 parent = mono_class_from_name (image, "System", "Array");
6145 parent = mono_defaults.array_class;
6146 if (!parent->inited)
6147 mono_class_init (parent);
6150 class = mono_image_alloc0 (image, sizeof (MonoClass));
6152 class->image = image;
6153 class->name_space = eclass->name_space;
6154 nsize = strlen (eclass->name);
6155 name = g_malloc (nsize + 2 + rank + 1);
6156 memcpy (name, eclass->name, nsize);
6159 memset (name + nsize + 1, ',', rank - 1);
6161 name [nsize + rank] = '*';
6162 name [nsize + rank + bounded] = ']';
6163 name [nsize + rank + bounded + 1] = 0;
6164 class->name = mono_image_strdup (image, name);
6167 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
6169 classes_size += sizeof (MonoClass);
6171 class->type_token = 0;
6172 /* all arrays are marked serializable and sealed, bug #42779 */
6173 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED | TYPE_ATTRIBUTE_PUBLIC;
6174 class->parent = parent;
6175 class->instance_size = mono_class_instance_size (class->parent);
6177 if (eclass->byval_arg.type == MONO_TYPE_TYPEDBYREF || eclass->byval_arg.type == MONO_TYPE_VOID) {
6178 /*Arrays of those two types are invalid.*/
6179 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6180 } else if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
6181 if (!eclass->ref_info_handle || eclass->wastypebuilder) {
6182 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
6183 g_assert (eclass->ref_info_handle && !eclass->wastypebuilder);
6185 /* element_size -1 is ok as this is not an instantitable type*/
6186 class->sizes.element_size = -1;
6188 class->sizes.element_size = mono_class_array_element_size (eclass);
6190 mono_class_setup_supertypes (class);
6192 if (eclass->generic_class)
6193 mono_class_init (eclass);
6194 if (!eclass->size_inited)
6195 mono_class_setup_fields (eclass);
6196 if (eclass->exception_type) /*FIXME we fail the array type, but we have to let other fields be set.*/
6197 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6199 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
6203 if (eclass->enumtype)
6204 class->cast_class = eclass->element_class;
6206 class->cast_class = eclass;
6208 switch (class->cast_class->byval_arg.type) {
6210 class->cast_class = mono_defaults.byte_class;
6213 class->cast_class = mono_defaults.int16_class;
6216 #if SIZEOF_VOID_P == 4
6220 class->cast_class = mono_defaults.int32_class;
6223 #if SIZEOF_VOID_P == 8
6227 class->cast_class = mono_defaults.int64_class;
6231 class->element_class = eclass;
6233 if ((rank > 1) || bounded) {
6234 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
6235 class->byval_arg.type = MONO_TYPE_ARRAY;
6236 class->byval_arg.data.array = at;
6237 at->eklass = eclass;
6239 /* FIXME: complete.... */
6241 class->byval_arg.type = MONO_TYPE_SZARRAY;
6242 class->byval_arg.data.klass = eclass;
6244 class->this_arg = class->byval_arg;
6245 class->this_arg.byref = 1;
6250 class->generic_container = eclass->generic_container;
6252 if (rank == 1 && !bounded) {
6253 MonoClass *prev_class;
6255 EnterCriticalSection (&image->szarray_cache_lock);
6256 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
6258 /* Someone got in before us */
6261 g_hash_table_insert (image->szarray_cache, eclass, class);
6262 LeaveCriticalSection (&image->szarray_cache_lock);
6264 list = g_slist_append (rootlist, class);
6265 g_hash_table_insert (image->array_cache, eclass, list);
6268 mono_loader_unlock ();
6270 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
6276 * mono_array_class_get:
6277 * @element_class: element class
6278 * @rank: the dimension of the array class
6280 * Returns: a class object describing the array with element type @element_type and
6284 mono_array_class_get (MonoClass *eclass, guint32 rank)
6286 return mono_bounded_array_class_get (eclass, rank, FALSE);
6290 * mono_class_instance_size:
6293 * Returns: the size of an object instance
6296 mono_class_instance_size (MonoClass *klass)
6298 if (!klass->size_inited)
6299 mono_class_init (klass);
6301 return klass->instance_size;
6305 * mono_class_min_align:
6308 * Returns: minimm alignment requirements
6311 mono_class_min_align (MonoClass *klass)
6313 if (!klass->size_inited)
6314 mono_class_init (klass);
6316 return klass->min_align;
6320 * mono_class_value_size:
6323 * This function is used for value types, and return the
6324 * space and the alignment to store that kind of value object.
6326 * Returns: the size of a value of kind @klass
6329 mono_class_value_size (MonoClass *klass, guint32 *align)
6333 /* fixme: check disable, because we still have external revereces to
6334 * mscorlib and Dummy Objects
6336 /*g_assert (klass->valuetype);*/
6338 size = mono_class_instance_size (klass) - sizeof (MonoObject);
6341 *align = klass->min_align;
6347 * mono_class_data_size:
6350 * Returns: the size of the static class data
6353 mono_class_data_size (MonoClass *klass)
6356 mono_class_init (klass);
6358 /* in arrays, sizes.class_size is unioned with element_size
6359 * and arrays have no static fields
6363 return klass->sizes.class_size;
6367 * Auxiliary routine to mono_class_get_field
6369 * Takes a field index instead of a field token.
6371 static MonoClassField *
6372 mono_class_get_field_idx (MonoClass *class, int idx)
6374 mono_class_setup_fields_locking (class);
6375 if (class->exception_type)
6379 if (class->image->uncompressed_metadata) {
6381 * class->field.first points to the FieldPtr table, while idx points into the
6382 * Field table, so we have to do a search.
6384 /*FIXME this is broken for types with multiple fields with the same name.*/
6385 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
6388 for (i = 0; i < class->field.count; ++i)
6389 if (mono_field_get_name (&class->fields [i]) == name)
6390 return &class->fields [i];
6391 g_assert_not_reached ();
6393 if (class->field.count) {
6394 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
6395 return &class->fields [idx - class->field.first];
6399 class = class->parent;
6405 * mono_class_get_field:
6406 * @class: the class to lookup the field.
6407 * @field_token: the field token
6409 * Returns: A MonoClassField representing the type and offset of
6410 * the field, or a NULL value if the field does not belong to this
6414 mono_class_get_field (MonoClass *class, guint32 field_token)
6416 int idx = mono_metadata_token_index (field_token);
6418 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
6420 return mono_class_get_field_idx (class, idx - 1);
6424 * mono_class_get_field_from_name:
6425 * @klass: the class to lookup the field.
6426 * @name: the field name
6428 * Search the class @klass and it's parents for a field with the name @name.
6430 * Returns: the MonoClassField pointer of the named field or NULL
6433 mono_class_get_field_from_name (MonoClass *klass, const char *name)
6435 return mono_class_get_field_from_name_full (klass, name, NULL);
6439 * mono_class_get_field_from_name_full:
6440 * @klass: the class to lookup the field.
6441 * @name: the field name
6442 * @type: the type of the fields. This optional.
6444 * Search the class @klass and it's parents for a field with the name @name and type @type.
6446 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
6447 * of its generic type definition.
6449 * Returns: the MonoClassField pointer of the named field or NULL
6452 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
6456 mono_class_setup_fields_locking (klass);
6457 if (klass->exception_type)
6461 for (i = 0; i < klass->field.count; ++i) {
6462 MonoClassField *field = &klass->fields [i];
6464 if (strcmp (name, mono_field_get_name (field)) != 0)
6468 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
6469 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
6474 klass = klass->parent;
6480 * mono_class_get_field_token:
6481 * @field: the field we need the token of
6483 * Get the token of a field. Note that the tokesn is only valid for the image
6484 * the field was loaded from. Don't use this function for fields in dynamic types.
6486 * Returns: the token representing the field in the image it was loaded from.
6489 mono_class_get_field_token (MonoClassField *field)
6491 MonoClass *klass = field->parent;
6494 mono_class_setup_fields_locking (klass);
6499 for (i = 0; i < klass->field.count; ++i) {
6500 if (&klass->fields [i] == field) {
6501 int idx = klass->field.first + i + 1;
6503 if (klass->image->uncompressed_metadata)
6504 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
6505 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
6508 klass = klass->parent;
6511 g_assert_not_reached ();
6516 mono_field_get_index (MonoClassField *field)
6518 int index = field - field->parent->fields;
6520 g_assert (index >= 0 && index < field->parent->field.count);
6526 * mono_class_get_field_default_value:
6528 * Return the default value of the field as a pointer into the metadata blob.
6531 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
6534 guint32 constant_cols [MONO_CONSTANT_SIZE];
6536 MonoClass *klass = field->parent;
6538 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
6540 if (!klass->ext || !klass->ext->field_def_values) {
6541 mono_loader_lock ();
6542 mono_class_alloc_ext (klass);
6543 if (!klass->ext->field_def_values)
6544 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
6545 mono_loader_unlock ();
6548 field_index = mono_field_get_index (field);
6550 if (!klass->ext->field_def_values [field_index].data) {
6551 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
6555 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
6557 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6558 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
6559 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
6562 *def_type = klass->ext->field_def_values [field_index].def_type;
6563 return klass->ext->field_def_values [field_index].data;
6567 mono_property_get_index (MonoProperty *prop)
6569 int index = prop - prop->parent->ext->properties;
6571 g_assert (index >= 0 && index < prop->parent->ext->property.count);
6577 * mono_class_get_property_default_value:
6579 * Return the default value of the field as a pointer into the metadata blob.
6582 mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type)
6585 guint32 constant_cols [MONO_CONSTANT_SIZE];
6586 MonoClass *klass = property->parent;
6588 g_assert (property->attrs & PROPERTY_ATTRIBUTE_HAS_DEFAULT);
6590 * We don't cache here because it is not used by C# so it's quite rare, but
6591 * we still do the lookup in klass->ext because that is where the data
6592 * is stored for dynamic assemblies.
6595 if (klass->image->dynamic) {
6596 int prop_index = mono_property_get_index (property);
6597 if (klass->ext->prop_def_values && klass->ext->prop_def_values [prop_index].data) {
6598 *def_type = klass->ext->prop_def_values [prop_index].def_type;
6599 return klass->ext->prop_def_values [prop_index].data;
6603 cindex = mono_metadata_get_constant_index (klass->image, mono_class_get_property_token (property), 0);
6607 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6608 *def_type = constant_cols [MONO_CONSTANT_TYPE];
6609 return (gpointer)mono_metadata_blob_heap (klass->image, constant_cols [MONO_CONSTANT_VALUE]);
6613 mono_class_get_event_token (MonoEvent *event)
6615 MonoClass *klass = event->parent;
6620 for (i = 0; i < klass->ext->event.count; ++i) {
6621 if (&klass->ext->events [i] == event)
6622 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
6625 klass = klass->parent;
6628 g_assert_not_reached ();
6633 mono_class_get_property_from_name (MonoClass *klass, const char *name)
6637 gpointer iter = NULL;
6638 while ((p = mono_class_get_properties (klass, &iter))) {
6639 if (! strcmp (name, p->name))
6642 klass = klass->parent;
6648 mono_class_get_property_token (MonoProperty *prop)
6650 MonoClass *klass = prop->parent;
6654 gpointer iter = NULL;
6655 while ((p = mono_class_get_properties (klass, &iter))) {
6656 if (&klass->ext->properties [i] == prop)
6657 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
6661 klass = klass->parent;
6664 g_assert_not_reached ();
6669 mono_class_name_from_token (MonoImage *image, guint32 type_token)
6671 const char *name, *nspace;
6673 return g_strdup_printf ("DynamicType 0x%08x", type_token);
6675 switch (type_token & 0xff000000){
6676 case MONO_TOKEN_TYPE_DEF: {
6677 guint32 cols [MONO_TYPEDEF_SIZE];
6678 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
6679 guint tidx = mono_metadata_token_index (type_token);
6681 if (tidx > tt->rows)
6682 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6684 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
6685 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6686 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6687 if (strlen (nspace) == 0)
6688 return g_strdup_printf ("%s", name);
6690 return g_strdup_printf ("%s.%s", nspace, name);
6693 case MONO_TOKEN_TYPE_REF: {
6695 guint32 cols [MONO_TYPEREF_SIZE];
6696 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6697 guint tidx = mono_metadata_token_index (type_token);
6700 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6702 if (!mono_verifier_verify_typeref_row (image, tidx - 1, &error)) {
6703 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6704 mono_error_cleanup (&error);
6708 mono_metadata_decode_row (t, tidx-1, cols, MONO_TYPEREF_SIZE);
6709 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
6710 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
6711 if (strlen (nspace) == 0)
6712 return g_strdup_printf ("%s", name);
6714 return g_strdup_printf ("%s.%s", nspace, name);
6717 case MONO_TOKEN_TYPE_SPEC:
6718 return g_strdup_printf ("Typespec 0x%08x", type_token);
6720 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6725 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
6728 return g_strdup_printf ("DynamicAssembly %s", image->name);
6730 switch (type_token & 0xff000000){
6731 case MONO_TOKEN_TYPE_DEF:
6732 if (image->assembly)
6733 return mono_stringify_assembly_name (&image->assembly->aname);
6734 else if (image->assembly_name)
6735 return g_strdup (image->assembly_name);
6736 return g_strdup_printf ("%s", image->name ? image->name : "[Could not resolve assembly name");
6737 case MONO_TOKEN_TYPE_REF: {
6739 MonoAssemblyName aname;
6740 guint32 cols [MONO_TYPEREF_SIZE];
6741 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6742 guint32 idx = mono_metadata_token_index (type_token);
6745 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6747 if (!mono_verifier_verify_typeref_row (image, idx - 1, &error)) {
6748 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6749 mono_error_cleanup (&error);
6752 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPEREF_SIZE);
6754 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
6755 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
6756 case MONO_RESOLTION_SCOPE_MODULE:
6758 return g_strdup ("");
6759 case MONO_RESOLTION_SCOPE_MODULEREF:
6761 return g_strdup ("");
6762 case MONO_RESOLTION_SCOPE_TYPEREF:
6764 return g_strdup ("");
6765 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
6766 mono_assembly_get_assemblyref (image, idx - 1, &aname);
6767 return mono_stringify_assembly_name (&aname);
6769 g_assert_not_reached ();
6773 case MONO_TOKEN_TYPE_SPEC:
6775 return g_strdup ("");
6777 g_assert_not_reached ();
6784 * mono_class_get_full:
6785 * @image: the image where the class resides
6786 * @type_token: the token for the class
6787 * @context: the generic context used to evaluate generic instantiations in
6789 * Returns: the MonoClass that represents @type_token in @image
6792 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6795 MonoClass *class = NULL;
6797 if (image->dynamic) {
6798 int table = mono_metadata_token_table (type_token);
6800 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
6801 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6804 return mono_lookup_dynamic_token (image, type_token, context);
6807 switch (type_token & 0xff000000){
6808 case MONO_TOKEN_TYPE_DEF:
6809 class = mono_class_create_from_typedef (image, type_token);
6811 case MONO_TOKEN_TYPE_REF:
6812 class = mono_class_from_typeref (image, type_token);
6814 case MONO_TOKEN_TYPE_SPEC:
6815 class = mono_class_create_from_typespec (image, type_token, context, &error);
6816 if (!mono_error_ok (&error)) {
6817 /*FIXME don't swallow the error message*/
6818 mono_error_cleanup (&error);
6822 g_warning ("unknown token type %x", type_token & 0xff000000);
6823 g_assert_not_reached ();
6827 char *name = mono_class_name_from_token (image, type_token);
6828 char *assembly = mono_assembly_name_from_token (image, type_token);
6829 mono_loader_set_error_type_load (name, assembly);
6839 * mono_type_get_full:
6840 * @image: the image where the type resides
6841 * @type_token: the token for the type
6842 * @context: the generic context used to evaluate generic instantiations in
6844 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6846 * Returns: the MonoType that represents @type_token in @image
6849 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6852 MonoType *type = NULL;
6853 gboolean inflated = FALSE;
6855 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6857 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
6859 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
6860 MonoClass *class = mono_class_get_full (image, type_token, context);
6861 return class ? mono_class_get_type (class) : NULL;
6864 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated, &error);
6866 if (!mono_error_ok (&error)) {
6867 /*FIXME don't swalloc the error message.*/
6868 char *name = mono_class_name_from_token (image, type_token);
6869 char *assembly = mono_assembly_name_from_token (image, type_token);
6871 g_warning ("Error loading type %s from %s due to %s", name, assembly, mono_error_get_message (&error));
6873 mono_error_cleanup (&error);
6874 mono_loader_set_error_type_load (name, assembly);
6879 MonoType *tmp = type;
6880 type = mono_class_get_type (mono_class_from_mono_type (type));
6881 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6882 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6883 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6885 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6887 if (type->type != tmp->type)
6890 mono_metadata_free_type (tmp);
6897 mono_class_get (MonoImage *image, guint32 type_token)
6899 return mono_class_get_full (image, type_token, NULL);
6903 * mono_image_init_name_cache:
6905 * Initializes the class name cache stored in image->name_cache.
6907 * LOCKING: Acquires the corresponding image lock.
6910 mono_image_init_name_cache (MonoImage *image)
6912 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6913 guint32 cols [MONO_TYPEDEF_SIZE];
6916 guint32 i, visib, nspace_index;
6917 GHashTable *name_cache2, *nspace_table;
6919 mono_image_lock (image);
6921 if (image->name_cache) {
6922 mono_image_unlock (image);
6926 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
6928 if (image->dynamic) {
6929 mono_image_unlock (image);
6933 /* Temporary hash table to avoid lookups in the nspace_table */
6934 name_cache2 = g_hash_table_new (NULL, NULL);
6936 for (i = 1; i <= t->rows; ++i) {
6937 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6938 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6940 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6941 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6943 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6945 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6946 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6948 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
6949 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6950 if (!nspace_table) {
6951 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6952 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6953 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6956 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
6959 /* Load type names from EXPORTEDTYPES table */
6961 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6962 guint32 cols [MONO_EXP_TYPE_SIZE];
6965 for (i = 0; i < t->rows; ++i) {
6966 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
6967 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
6968 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
6970 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
6971 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6972 if (!nspace_table) {
6973 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6974 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6975 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6978 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
6982 g_hash_table_destroy (name_cache2);
6983 mono_image_unlock (image);
6986 /*FIXME Only dynamic assemblies should allow this operation.*/
6988 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
6989 const char *name, guint32 index)
6991 GHashTable *nspace_table;
6992 GHashTable *name_cache;
6995 mono_image_lock (image);
6997 if (!image->name_cache)
6998 mono_image_init_name_cache (image);
7000 name_cache = image->name_cache;
7001 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
7002 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
7003 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
7006 if ((old_index = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, (char*) name))))
7007 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index, image->name, nspace, name);
7009 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
7011 mono_image_unlock (image);
7020 find_nocase (gpointer key, gpointer value, gpointer user_data)
7022 char *name = (char*)key;
7023 FindUserData *data = (FindUserData*)user_data;
7025 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
7026 data->value = value;
7030 * mono_class_from_name_case:
7031 * @image: The MonoImage where the type is looked up in
7032 * @name_space: the type namespace
7033 * @name: the type short name.
7035 * Obtains a MonoClass with a given namespace and a given name which
7036 * is located in the given MonoImage. The namespace and name
7037 * lookups are case insensitive.
7040 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
7042 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
7043 guint32 cols [MONO_TYPEDEF_SIZE];
7048 if (image->dynamic) {
7050 FindUserData user_data;
7052 mono_image_lock (image);
7054 if (!image->name_cache)
7055 mono_image_init_name_cache (image);
7057 user_data.key = name_space;
7058 user_data.value = NULL;
7059 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
7061 if (user_data.value) {
7062 GHashTable *nspace_table = (GHashTable*)user_data.value;
7064 user_data.key = name;
7065 user_data.value = NULL;
7067 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
7069 if (user_data.value)
7070 token = GPOINTER_TO_UINT (user_data.value);
7073 mono_image_unlock (image);
7076 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
7082 /* add a cache if needed */
7083 for (i = 1; i <= t->rows; ++i) {
7084 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
7085 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7087 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
7088 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
7090 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
7092 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
7093 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
7094 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
7095 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
7101 return_nested_in (MonoClass *class, char *nested)
7104 char *s = strchr (nested, '/');
7105 gpointer iter = NULL;
7112 while ((found = mono_class_get_nested_types (class, &iter))) {
7113 if (strcmp (found->name, nested) == 0) {
7115 return return_nested_in (found, s);
7123 search_modules (MonoImage *image, const char *name_space, const char *name)
7125 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
7126 MonoImage *file_image;
7131 * The EXPORTEDTYPES table only contains public types, so have to search the
7133 * Note: image->modules contains the contents of the MODULEREF table, while
7134 * the real module list is in the FILE table.
7136 for (i = 0; i < file_table->rows; i++) {
7137 guint32 cols [MONO_FILE_SIZE];
7138 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
7139 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
7142 file_image = mono_image_load_file_for_image (image, i + 1);
7144 class = mono_class_from_name (file_image, name_space, name);
7154 * mono_class_from_name:
7155 * @image: The MonoImage where the type is looked up in
7156 * @name_space: the type namespace
7157 * @name: the type short name.
7159 * Obtains a MonoClass with a given namespace and a given name which
7160 * is located in the given MonoImage.
7163 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
7165 GHashTable *nspace_table;
7166 MonoImage *loaded_image;
7173 if ((nested = strchr (name, '/'))) {
7174 int pos = nested - name;
7175 int len = strlen (name);
7178 memcpy (buf, name, len + 1);
7180 nested = buf + pos + 1;
7184 /* FIXME: get_class_from_name () can't handle types in the EXPORTEDTYPE table */
7185 if (get_class_from_name && image->tables [MONO_TABLE_EXPORTEDTYPE].rows == 0) {
7186 gboolean res = get_class_from_name (image, name_space, name, &class);
7189 class = search_modules (image, name_space, name);
7191 return class ? return_nested_in (class, nested) : NULL;
7197 mono_image_lock (image);
7199 if (!image->name_cache)
7200 mono_image_init_name_cache (image);
7202 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
7205 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
7207 mono_image_unlock (image);
7209 if (!token && image->dynamic && image->modules) {
7210 /* Search modules as well */
7211 for (i = 0; i < image->module_count; ++i) {
7212 MonoImage *module = image->modules [i];
7214 class = mono_class_from_name (module, name_space, name);
7221 class = search_modules (image, name_space, name);
7229 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
7230 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
7231 guint32 cols [MONO_EXP_TYPE_SIZE];
7234 idx = mono_metadata_token_index (token);
7236 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
7238 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
7239 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
7240 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
7243 class = mono_class_from_name (loaded_image, name_space, name);
7245 return return_nested_in (class, nested);
7247 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
7248 guint32 assembly_idx;
7250 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
7252 mono_assembly_load_reference (image, assembly_idx - 1);
7253 g_assert (image->references [assembly_idx - 1]);
7254 if (image->references [assembly_idx - 1] == (gpointer)-1)
7257 /* FIXME: Cycle detection */
7258 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
7260 g_error ("not yet implemented");
7264 token = MONO_TOKEN_TYPE_DEF | token;
7266 class = mono_class_get (image, token);
7268 return return_nested_in (class, nested);
7272 /*FIXME test for interfaces with variant generic arguments*/
7274 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
7275 gboolean check_interfaces)
7277 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
7278 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
7280 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
7283 for (i = 0; i < klass->interface_count; i ++) {
7284 MonoClass *ic = klass->interfaces [i];
7289 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
7294 * MS.NET thinks interfaces are a subclass of Object, so we think it as
7297 if (klassc == mono_defaults.object_class)
7304 mono_type_is_generic_argument (MonoType *type)
7306 return type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR;
7310 mono_class_has_variant_generic_params (MonoClass *klass)
7313 MonoGenericContainer *container;
7315 if (!klass->generic_class)
7318 container = klass->generic_class->container_class->generic_container;
7320 for (i = 0; i < container->type_argc; ++i)
7321 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
7328 mono_gparam_is_reference_conversible (MonoClass *target, MonoClass *candidate, gboolean check_for_reference_conv)
7330 if (target == candidate)
7333 if (check_for_reference_conv &&
7334 mono_type_is_generic_argument (&target->byval_arg) &&
7335 mono_type_is_generic_argument (&candidate->byval_arg)) {
7336 MonoGenericParam *gparam = candidate->byval_arg.data.generic_param;
7337 MonoGenericParamInfo *pinfo = mono_generic_param_info (gparam);
7339 if (!pinfo || (pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) == 0)
7342 if (!mono_class_is_assignable_from (target, candidate))
7348 * @container the generic container from the GTD
7349 * @klass: the class to be assigned to
7350 * @oklass: the source class
7352 * Both klass and oklass must be instances of the same generic interface.
7353 * Return true if @klass can be assigned to a @klass variable
7356 mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass, gboolean check_for_reference_conv)
7359 MonoType **klass_argv, **oklass_argv;
7360 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7361 MonoGenericContainer *container = klass_gtd->generic_container;
7363 if (klass == oklass)
7366 /*Viable candidates are instances of the same generic interface*/
7367 if (mono_class_get_generic_type_definition (oklass) != klass_gtd || oklass == klass_gtd)
7370 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7371 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7373 for (j = 0; j < container->type_argc; ++j) {
7374 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7375 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7377 if (param1_class->valuetype != param2_class->valuetype || (param1_class->valuetype && param1_class != param2_class))
7381 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7382 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7384 if (param1_class != param2_class) {
7385 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7386 if (!mono_gparam_is_reference_conversible (param1_class, param2_class, check_for_reference_conv))
7388 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7389 if (!mono_gparam_is_reference_conversible (param2_class, param1_class, check_for_reference_conv))
7399 mono_gparam_is_assignable_from (MonoClass *target, MonoClass *candidate)
7401 MonoGenericParam *gparam, *ogparam;
7402 MonoGenericParamInfo *tinfo, *cinfo;
7403 MonoClass **candidate_class;
7404 gboolean class_constraint_satisfied, valuetype_constraint_satisfied;
7407 if (target == candidate)
7409 if (target->byval_arg.type != candidate->byval_arg.type)
7412 gparam = target->byval_arg.data.generic_param;
7413 ogparam = candidate->byval_arg.data.generic_param;
7414 tinfo = mono_generic_param_info (gparam);
7415 cinfo = mono_generic_param_info (ogparam);
7417 class_constraint_satisfied = FALSE;
7418 valuetype_constraint_satisfied = FALSE;
7420 /*candidate must have a super set of target's special constraints*/
7421 tmask = tinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_SPECIAL_CONSTRAINTS_MASK;
7422 cmask = cinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_SPECIAL_CONSTRAINTS_MASK;
7424 if (cinfo->constraints) {
7425 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7426 MonoClass *cc = *candidate_class;
7428 if (mono_type_is_reference (&cc->byval_arg) && !MONO_CLASS_IS_INTERFACE (cc))
7429 class_constraint_satisfied = TRUE;
7430 else if (!mono_type_is_reference (&cc->byval_arg) && !MONO_CLASS_IS_INTERFACE (cc))
7431 valuetype_constraint_satisfied = TRUE;
7434 class_constraint_satisfied |= (cmask & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) != 0;
7435 valuetype_constraint_satisfied |= (cmask & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT) != 0;
7437 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) && !class_constraint_satisfied)
7439 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT) && !valuetype_constraint_satisfied)
7441 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_CONSTRUCTOR_CONSTRAINT) && !((cmask & GENERIC_PARAMETER_ATTRIBUTE_CONSTRUCTOR_CONSTRAINT) ||
7442 valuetype_constraint_satisfied)) {
7447 /*candidate type constraints must be a superset of target's*/
7448 if (tinfo->constraints) {
7449 MonoClass **target_class;
7450 for (target_class = tinfo->constraints; *target_class; ++target_class) {
7451 MonoClass *tc = *target_class;
7454 * A constraint from @target might inflate into @candidate itself and in that case we don't need
7455 * check it's constraints since it satisfy the constraint by itself.
7457 if (mono_metadata_type_equal (&tc->byval_arg, &candidate->byval_arg))
7460 if (!cinfo->constraints)
7463 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7464 MonoClass *cc = *candidate_class;
7466 if (mono_class_is_assignable_from (tc, cc))
7470 * This happens when we have the following:
7472 * Bar<K> where K : IFace
7473 * Foo<T, U> where T : U where U : IFace
7475 * Bar<T> <- T here satisfy K constraint transitively through to U's constraint
7478 if (mono_type_is_generic_argument (&cc->byval_arg)) {
7479 if (mono_gparam_is_assignable_from (target, cc))
7483 if (!*candidate_class)
7488 /*candidate itself must have a constraint that satisfy target*/
7489 if (cinfo->constraints) {
7490 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7491 MonoClass *cc = *candidate_class;
7492 if (mono_class_is_assignable_from (target, cc))
7500 * mono_class_is_assignable_from:
7501 * @klass: the class to be assigned to
7502 * @oklass: the source class
7504 * Return: true if an instance of object oklass can be assigned to an
7505 * instance of object @klass
7508 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
7510 /*FIXME this will cause a lot of irrelevant stuff to be loaded.*/
7512 mono_class_init (klass);
7514 if (!oklass->inited)
7515 mono_class_init (oklass);
7517 if (klass->exception_type || oklass->exception_type)
7520 if (mono_type_is_generic_argument (&klass->byval_arg)) {
7521 if (!mono_type_is_generic_argument (&oklass->byval_arg))
7523 return mono_gparam_is_assignable_from (klass, oklass);
7526 if (MONO_CLASS_IS_INTERFACE (klass)) {
7527 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR)) {
7528 MonoGenericParam *gparam = oklass->byval_arg.data.generic_param;
7529 MonoClass **constraints = mono_generic_container_get_param_info (gparam->owner, gparam->num)->constraints;
7533 for (i = 0; constraints [i]; ++i) {
7534 if (mono_class_is_assignable_from (klass, constraints [i]))
7542 /* interface_offsets might not be set for dynamic classes */
7543 if (oklass->ref_info_handle && !oklass->interface_bitmap)
7545 * oklass might be a generic type parameter but they have
7546 * interface_offsets set.
7548 return mono_reflection_call_is_assignable_to (oklass, klass);
7549 if (!oklass->interface_bitmap)
7550 /* Happens with generic instances of not-yet created dynamic types */
7552 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
7555 if (mono_class_has_variant_generic_params (klass)) {
7558 mono_class_setup_interfaces (oklass, &error);
7559 if (!mono_error_ok (&error)) {
7560 mono_error_cleanup (&error);
7564 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
7565 for (i = 0; i < oklass->interface_offsets_count; ++i) {
7566 MonoClass *iface = oklass->interfaces_packed [i];
7568 if (mono_class_is_variant_compatible (klass, iface, FALSE))
7573 } else if (klass->delegate) {
7574 if (mono_class_has_variant_generic_params (klass) && mono_class_is_variant_compatible (klass, oklass, FALSE))
7576 }else if (klass->rank) {
7577 MonoClass *eclass, *eoclass;
7579 if (oklass->rank != klass->rank)
7582 /* vectors vs. one dimensional arrays */
7583 if (oklass->byval_arg.type != klass->byval_arg.type)
7586 eclass = klass->cast_class;
7587 eoclass = oklass->cast_class;
7590 * a is b does not imply a[] is b[] when a is a valuetype, and
7591 * b is a reference type.
7594 if (eoclass->valuetype) {
7595 if ((eclass == mono_defaults.enum_class) ||
7596 (eclass == mono_defaults.enum_class->parent) ||
7597 (eclass == mono_defaults.object_class))
7601 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7602 } else if (mono_class_is_nullable (klass)) {
7603 if (mono_class_is_nullable (oklass))
7604 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7606 return mono_class_is_assignable_from (klass->cast_class, oklass);
7607 } else if (klass == mono_defaults.object_class)
7610 return mono_class_has_parent (oklass, klass);
7613 /*Check if @oklass is variant compatible with @klass.*/
7615 mono_class_is_variant_compatible_slow (MonoClass *klass, MonoClass *oklass)
7618 MonoType **klass_argv, **oklass_argv;
7619 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7620 MonoGenericContainer *container = klass_gtd->generic_container;
7622 /*Viable candidates are instances of the same generic interface*/
7623 if (mono_class_get_generic_type_definition (oklass) != klass_gtd || oklass == klass_gtd)
7626 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7627 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7629 for (j = 0; j < container->type_argc; ++j) {
7630 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7631 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7633 if (param1_class->valuetype != param2_class->valuetype)
7637 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7638 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7640 if (param1_class != param2_class) {
7641 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7642 if (!mono_class_is_assignable_from_slow (param1_class, param2_class))
7644 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7645 if (!mono_class_is_assignable_from_slow (param2_class, param1_class))
7653 /*Check if @candidate implements the interface @target*/
7655 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
7659 gboolean is_variant = mono_class_has_variant_generic_params (target);
7661 if (is_variant && MONO_CLASS_IS_INTERFACE (candidate)) {
7662 if (mono_class_is_variant_compatible_slow (target, candidate))
7667 if (candidate == target)
7670 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7671 if (candidate->image->dynamic && !candidate->wastypebuilder) {
7672 MonoReflectionTypeBuilder *tb = mono_class_get_ref_info (candidate);
7674 if (tb && tb->interfaces) {
7675 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
7676 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
7677 MonoClass *iface_class;
7679 /* we can't realize the type here since it can do pretty much anything. */
7682 iface_class = mono_class_from_mono_type (iface->type);
7683 if (iface_class == target)
7685 if (is_variant && mono_class_is_variant_compatible_slow (target, iface_class))
7687 if (mono_class_implement_interface_slow (target, iface_class))
7692 /*setup_interfaces don't mono_class_init anything*/
7693 mono_class_setup_interfaces (candidate, &error);
7694 if (!mono_error_ok (&error)) {
7695 mono_error_cleanup (&error);
7699 for (i = 0; i < candidate->interface_count; ++i) {
7700 if (candidate->interfaces [i] == target)
7703 if (is_variant && mono_class_is_variant_compatible_slow (target, candidate->interfaces [i]))
7706 if (mono_class_implement_interface_slow (target, candidate->interfaces [i]))
7710 candidate = candidate->parent;
7711 } while (candidate);
7717 * Check if @oklass can be assigned to @klass.
7718 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7721 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
7723 if (candidate == target)
7725 if (target == mono_defaults.object_class)
7728 if (mono_class_has_parent (candidate, target))
7731 /*If target is not an interface there is no need to check them.*/
7732 if (MONO_CLASS_IS_INTERFACE (target))
7733 return mono_class_implement_interface_slow (target, candidate);
7735 if (target->delegate && mono_class_has_variant_generic_params (target))
7736 return mono_class_is_variant_compatible (target, candidate, FALSE);
7738 /*FIXME properly handle nullables and arrays */
7739 /*FIXME properly handle (M)VAR */
7744 * mono_class_get_cctor:
7745 * @klass: A MonoClass pointer
7747 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7750 mono_class_get_cctor (MonoClass *klass)
7752 MonoCachedClassInfo cached_info;
7754 if (klass->image->dynamic) {
7756 * has_cctor is not set for these classes because mono_class_init () is
7759 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7762 if (!klass->has_cctor)
7765 if (mono_class_get_cached_class_info (klass, &cached_info))
7766 return mono_get_method (klass->image, cached_info.cctor_token, klass);
7768 if (klass->generic_class && !klass->methods)
7769 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
7771 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7775 * mono_class_get_finalizer:
7776 * @klass: The MonoClass pointer
7778 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7781 mono_class_get_finalizer (MonoClass *klass)
7783 MonoCachedClassInfo cached_info;
7786 mono_class_init (klass);
7787 if (!mono_class_has_finalizer (klass))
7790 if (mono_class_get_cached_class_info (klass, &cached_info))
7791 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
7793 mono_class_setup_vtable (klass);
7794 return klass->vtable [finalize_slot];
7799 * mono_class_needs_cctor_run:
7800 * @klass: the MonoClass pointer
7801 * @caller: a MonoMethod describing the caller
7803 * Determines whenever the class has a static constructor and whenever it
7804 * needs to be called when executing CALLER.
7807 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
7811 method = mono_class_get_cctor (klass);
7813 return (method == caller) ? FALSE : TRUE;
7819 * mono_class_array_element_size:
7822 * Returns: the number of bytes an element of type @klass
7823 * uses when stored into an array.
7826 mono_class_array_element_size (MonoClass *klass)
7828 MonoType *type = &klass->byval_arg;
7831 switch (type->type) {
7834 case MONO_TYPE_BOOLEAN:
7838 case MONO_TYPE_CHAR:
7847 case MONO_TYPE_CLASS:
7848 case MONO_TYPE_STRING:
7849 case MONO_TYPE_OBJECT:
7850 case MONO_TYPE_SZARRAY:
7851 case MONO_TYPE_ARRAY:
7853 case MONO_TYPE_MVAR:
7854 return sizeof (gpointer);
7859 case MONO_TYPE_VALUETYPE:
7860 if (type->data.klass->enumtype) {
7861 type = mono_class_enum_basetype (type->data.klass);
7862 klass = klass->element_class;
7865 return mono_class_instance_size (klass) - sizeof (MonoObject);
7866 case MONO_TYPE_GENERICINST:
7867 type = &type->data.generic_class->container_class->byval_arg;
7870 case MONO_TYPE_VOID:
7874 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
7880 * mono_array_element_size:
7881 * @ac: pointer to a #MonoArrayClass
7883 * Returns: the size of single array element.
7886 mono_array_element_size (MonoClass *ac)
7888 g_assert (ac->rank);
7889 return ac->sizes.element_size;
7893 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
7894 MonoGenericContext *context)
7896 if (image->dynamic) {
7897 MonoClass *tmp_handle_class;
7898 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
7900 g_assert (tmp_handle_class);
7902 *handle_class = tmp_handle_class;
7904 if (tmp_handle_class == mono_defaults.typehandle_class)
7905 return &((MonoClass*)obj)->byval_arg;
7910 switch (token & 0xff000000) {
7911 case MONO_TOKEN_TYPE_DEF:
7912 case MONO_TOKEN_TYPE_REF:
7913 case MONO_TOKEN_TYPE_SPEC: {
7916 *handle_class = mono_defaults.typehandle_class;
7917 type = mono_type_get_full (image, token, context);
7920 mono_class_init (mono_class_from_mono_type (type));
7921 /* We return a MonoType* as handle */
7924 case MONO_TOKEN_FIELD_DEF: {
7926 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
7930 *handle_class = mono_defaults.fieldhandle_class;
7931 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
7934 mono_class_init (class);
7935 return mono_class_get_field (class, token);
7937 case MONO_TOKEN_METHOD_DEF:
7938 case MONO_TOKEN_METHOD_SPEC: {
7940 meth = mono_get_method_full (image, token, NULL, context);
7942 *handle_class = mono_defaults.methodhandle_class;
7945 case MONO_TOKEN_MEMBER_REF: {
7946 guint32 cols [MONO_MEMBERREF_SIZE];
7948 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
7949 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
7950 mono_metadata_decode_blob_size (sig, &sig);
7951 if (*sig == 0x6) { /* it's a field */
7953 MonoClassField *field;
7954 field = mono_field_from_token (image, token, &klass, context);
7956 *handle_class = mono_defaults.fieldhandle_class;
7960 meth = mono_get_method_full (image, token, NULL, context);
7962 *handle_class = mono_defaults.methodhandle_class;
7967 g_warning ("Unknown token 0x%08x in ldtoken", token);
7974 * This function might need to call runtime functions so it can't be part
7975 * of the metadata library.
7977 static MonoLookupDynamicToken lookup_dynamic = NULL;
7980 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
7982 lookup_dynamic = func;
7986 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
7988 MonoClass *handle_class;
7990 return lookup_dynamic (image, token, TRUE, &handle_class, context);
7994 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
7996 return lookup_dynamic (image, token, valid_token, handle_class, context);
7999 static MonoGetCachedClassInfo get_cached_class_info = NULL;
8002 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
8004 get_cached_class_info = func;
8008 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
8010 if (!get_cached_class_info)
8013 return get_cached_class_info (klass, res);
8017 mono_install_get_class_from_name (MonoGetClassFromName func)
8019 get_class_from_name = func;
8023 mono_class_get_image (MonoClass *klass)
8025 return klass->image;
8029 * mono_class_get_element_class:
8030 * @klass: the MonoClass to act on
8032 * Returns: the element class of an array or an enumeration.
8035 mono_class_get_element_class (MonoClass *klass)
8037 return klass->element_class;
8041 * mono_class_is_valuetype:
8042 * @klass: the MonoClass to act on
8044 * Returns: true if the MonoClass represents a ValueType.
8047 mono_class_is_valuetype (MonoClass *klass)
8049 return klass->valuetype;
8053 * mono_class_is_enum:
8054 * @klass: the MonoClass to act on
8056 * Returns: true if the MonoClass represents an enumeration.
8059 mono_class_is_enum (MonoClass *klass)
8061 return klass->enumtype;
8065 * mono_class_enum_basetype:
8066 * @klass: the MonoClass to act on
8068 * Returns: the underlying type representation for an enumeration.
8071 mono_class_enum_basetype (MonoClass *klass)
8073 if (klass->element_class == klass)
8074 /* SRE or broken types */
8077 return &klass->element_class->byval_arg;
8081 * mono_class_get_parent
8082 * @klass: the MonoClass to act on
8084 * Returns: the parent class for this class.
8087 mono_class_get_parent (MonoClass *klass)
8089 return klass->parent;
8093 * mono_class_get_nesting_type;
8094 * @klass: the MonoClass to act on
8096 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
8099 mono_class_get_nesting_type (MonoClass *klass)
8101 return klass->nested_in;
8105 * mono_class_get_rank:
8106 * @klass: the MonoClass to act on
8108 * Returns: the rank for the array (the number of dimensions).
8111 mono_class_get_rank (MonoClass *klass)
8117 * mono_class_get_flags:
8118 * @klass: the MonoClass to act on
8120 * The type flags from the TypeDef table from the metadata.
8121 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
8124 * Returns: the flags from the TypeDef table.
8127 mono_class_get_flags (MonoClass *klass)
8129 return klass->flags;
8133 * mono_class_get_name
8134 * @klass: the MonoClass to act on
8136 * Returns: the name of the class.
8139 mono_class_get_name (MonoClass *klass)
8145 * mono_class_get_namespace:
8146 * @klass: the MonoClass to act on
8148 * Returns: the namespace of the class.
8151 mono_class_get_namespace (MonoClass *klass)
8153 return klass->name_space;
8157 * mono_class_get_type:
8158 * @klass: the MonoClass to act on
8160 * This method returns the internal Type representation for the class.
8162 * Returns: the MonoType from the class.
8165 mono_class_get_type (MonoClass *klass)
8167 return &klass->byval_arg;
8171 * mono_class_get_type_token
8172 * @klass: the MonoClass to act on
8174 * This method returns type token for the class.
8176 * Returns: the type token for the class.
8179 mono_class_get_type_token (MonoClass *klass)
8181 return klass->type_token;
8185 * mono_class_get_byref_type:
8186 * @klass: the MonoClass to act on
8191 mono_class_get_byref_type (MonoClass *klass)
8193 return &klass->this_arg;
8197 * mono_class_num_fields:
8198 * @klass: the MonoClass to act on
8200 * Returns: the number of static and instance fields in the class.
8203 mono_class_num_fields (MonoClass *klass)
8205 return klass->field.count;
8209 * mono_class_num_methods:
8210 * @klass: the MonoClass to act on
8212 * Returns: the number of methods in the class.
8215 mono_class_num_methods (MonoClass *klass)
8217 return klass->method.count;
8221 * mono_class_num_properties
8222 * @klass: the MonoClass to act on
8224 * Returns: the number of properties in the class.
8227 mono_class_num_properties (MonoClass *klass)
8229 mono_class_setup_properties (klass);
8231 return klass->ext->property.count;
8235 * mono_class_num_events:
8236 * @klass: the MonoClass to act on
8238 * Returns: the number of events in the class.
8241 mono_class_num_events (MonoClass *klass)
8243 mono_class_setup_events (klass);
8245 return klass->ext->event.count;
8249 * mono_class_get_fields:
8250 * @klass: the MonoClass to act on
8252 * This routine is an iterator routine for retrieving the fields in a class.
8254 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8255 * iterate over all of the elements. When no more values are
8256 * available, the return value is NULL.
8258 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
8261 mono_class_get_fields (MonoClass* klass, gpointer *iter)
8263 MonoClassField* field;
8267 mono_class_setup_fields_locking (klass);
8268 if (klass->exception_type)
8270 /* start from the first */
8271 if (klass->field.count) {
8272 return *iter = &klass->fields [0];
8280 if (field < &klass->fields [klass->field.count]) {
8281 return *iter = field;
8287 * mono_class_get_methods
8288 * @klass: the MonoClass to act on
8290 * This routine is an iterator routine for retrieving the fields in a class.
8292 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8293 * iterate over all of the elements. When no more values are
8294 * available, the return value is NULL.
8296 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
8299 mono_class_get_methods (MonoClass* klass, gpointer *iter)
8301 MonoMethod** method;
8305 mono_class_setup_methods (klass);
8308 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8309 * FIXME we should better report this error to the caller
8311 if (!klass->methods)
8313 /* start from the first */
8314 if (klass->method.count) {
8315 *iter = &klass->methods [0];
8316 return klass->methods [0];
8324 if (method < &klass->methods [klass->method.count]) {
8332 * mono_class_get_virtual_methods:
8334 * Iterate over the virtual methods of KLASS.
8336 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
8339 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
8341 MonoMethod** method;
8344 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
8346 mono_class_setup_methods (klass);
8348 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8349 * FIXME we should better report this error to the caller
8351 if (!klass->methods)
8353 /* start from the first */
8354 method = &klass->methods [0];
8359 while (method < &klass->methods [klass->method.count]) {
8360 if (*method && ((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
8364 if (method < &klass->methods [klass->method.count]) {
8371 /* Search directly in metadata to avoid calling setup_methods () */
8372 MonoMethod *res = NULL;
8378 start_index = GPOINTER_TO_UINT (*iter);
8381 for (i = start_index; i < klass->method.count; ++i) {
8384 /* class->method.first points into the methodptr table */
8385 flags = mono_metadata_decode_table_row_col (klass->image, MONO_TABLE_METHOD, klass->method.first + i, MONO_METHOD_FLAGS);
8387 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
8391 if (i < klass->method.count) {
8392 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8393 /* Add 1 here so the if (*iter) check fails */
8394 *iter = GUINT_TO_POINTER (i + 1);
8403 * mono_class_get_properties:
8404 * @klass: the MonoClass to act on
8406 * This routine is an iterator routine for retrieving the properties in a class.
8408 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8409 * iterate over all of the elements. When no more values are
8410 * available, the return value is NULL.
8412 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
8415 mono_class_get_properties (MonoClass* klass, gpointer *iter)
8417 MonoProperty* property;
8421 mono_class_setup_properties (klass);
8422 /* start from the first */
8423 if (klass->ext->property.count) {
8424 return *iter = &klass->ext->properties [0];
8432 if (property < &klass->ext->properties [klass->ext->property.count]) {
8433 return *iter = property;
8439 * mono_class_get_events:
8440 * @klass: the MonoClass to act on
8442 * This routine is an iterator routine for retrieving the properties in a class.
8444 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8445 * iterate over all of the elements. When no more values are
8446 * available, the return value is NULL.
8448 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
8451 mono_class_get_events (MonoClass* klass, gpointer *iter)
8457 mono_class_setup_events (klass);
8458 /* start from the first */
8459 if (klass->ext->event.count) {
8460 return *iter = &klass->ext->events [0];
8468 if (event < &klass->ext->events [klass->ext->event.count]) {
8469 return *iter = event;
8475 * mono_class_get_interfaces
8476 * @klass: the MonoClass to act on
8478 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
8480 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8481 * iterate over all of the elements. When no more values are
8482 * available, the return value is NULL.
8484 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8487 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
8495 mono_class_init (klass);
8496 if (!klass->interfaces_inited) {
8497 mono_class_setup_interfaces (klass, &error);
8498 if (!mono_error_ok (&error)) {
8499 mono_error_cleanup (&error);
8503 /* start from the first */
8504 if (klass->interface_count) {
8505 *iter = &klass->interfaces [0];
8506 return klass->interfaces [0];
8514 if (iface < &klass->interfaces [klass->interface_count]) {
8522 * mono_class_get_nested_types
8523 * @klass: the MonoClass to act on
8525 * This routine is an iterator routine for retrieving the nested types of a class.
8526 * This works only if @klass is non-generic, or a generic type definition.
8528 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8529 * iterate over all of the elements. When no more values are
8530 * available, the return value is NULL.
8532 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8535 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
8542 if (!klass->nested_classes_inited) {
8543 if (!klass->type_token)
8544 klass->nested_classes_inited = TRUE;
8545 mono_loader_lock ();
8546 if (!klass->nested_classes_inited) {
8547 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
8550 guint32 cols [MONO_NESTED_CLASS_SIZE];
8551 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
8552 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
8554 mono_loader_clear_error ();
8555 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8558 mono_class_alloc_ext (klass);
8559 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
8561 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8564 mono_memory_barrier ();
8565 klass->nested_classes_inited = TRUE;
8566 mono_loader_unlock ();
8570 /* start from the first */
8571 if (klass->ext && klass->ext->nested_classes) {
8572 *iter = klass->ext->nested_classes;
8573 return klass->ext->nested_classes->data;
8575 /* no nested types */
8589 * mono_field_get_name:
8590 * @field: the MonoClassField to act on
8592 * Returns: the name of the field.
8595 mono_field_get_name (MonoClassField *field)
8601 * mono_field_get_type:
8602 * @field: the MonoClassField to act on
8604 * Returns: MonoType of the field.
8607 mono_field_get_type (MonoClassField *field)
8610 MonoType *type = mono_field_get_type_checked (field, &error);
8611 if (!mono_error_ok (&error)) {
8612 mono_trace_warning (MONO_TRACE_TYPE, "Could not load field's type due to %s", mono_error_get_message (&error));
8613 mono_error_cleanup (&error);
8620 * mono_field_get_type_checked:
8621 * @field: the MonoClassField to act on
8622 * @error: used to return any erro found while retrieving @field type
8624 * Returns: MonoType of the field.
8627 mono_field_get_type_checked (MonoClassField *field, MonoError *error)
8629 mono_error_init (error);
8631 mono_field_resolve_type (field, error);
8636 * mono_field_get_parent:
8637 * @field: the MonoClassField to act on
8639 * Returns: MonoClass where the field was defined.
8642 mono_field_get_parent (MonoClassField *field)
8644 return field->parent;
8648 * mono_field_get_flags;
8649 * @field: the MonoClassField to act on
8651 * The metadata flags for a field are encoded using the
8652 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8654 * Returns: the flags for the field.
8657 mono_field_get_flags (MonoClassField *field)
8660 return mono_field_resolve_flags (field);
8661 return field->type->attrs;
8665 * mono_field_get_offset;
8666 * @field: the MonoClassField to act on
8668 * Returns: the field offset.
8671 mono_field_get_offset (MonoClassField *field)
8673 return field->offset;
8677 mono_field_get_rva (MonoClassField *field)
8681 MonoClass *klass = field->parent;
8683 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
8685 if (!klass->ext || !klass->ext->field_def_values) {
8686 mono_loader_lock ();
8687 mono_class_alloc_ext (klass);
8688 if (!klass->ext->field_def_values)
8689 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
8690 mono_loader_unlock ();
8693 field_index = mono_field_get_index (field);
8695 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
8696 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
8698 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
8699 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
8702 return klass->ext->field_def_values [field_index].data;
8706 * mono_field_get_data;
8707 * @field: the MonoClassField to act on
8709 * Returns: pointer to the metadata constant value or to the field
8710 * data if it has an RVA flag.
8713 mono_field_get_data (MonoClassField *field)
8715 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
8716 MonoTypeEnum def_type;
8718 return mono_class_get_field_default_value (field, &def_type);
8719 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
8720 return mono_field_get_rva (field);
8727 * mono_property_get_name:
8728 * @prop: the MonoProperty to act on
8730 * Returns: the name of the property
8733 mono_property_get_name (MonoProperty *prop)
8739 * mono_property_get_set_method
8740 * @prop: the MonoProperty to act on.
8742 * Returns: the setter method of the property (A MonoMethod)
8745 mono_property_get_set_method (MonoProperty *prop)
8751 * mono_property_get_get_method
8752 * @prop: the MonoProperty to act on.
8754 * Returns: the setter method of the property (A MonoMethod)
8757 mono_property_get_get_method (MonoProperty *prop)
8763 * mono_property_get_parent:
8764 * @prop: the MonoProperty to act on.
8766 * Returns: the MonoClass where the property was defined.
8769 mono_property_get_parent (MonoProperty *prop)
8771 return prop->parent;
8775 * mono_property_get_flags:
8776 * @prop: the MonoProperty to act on.
8778 * The metadata flags for a property are encoded using the
8779 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8781 * Returns: the flags for the property.
8784 mono_property_get_flags (MonoProperty *prop)
8790 * mono_event_get_name:
8791 * @event: the MonoEvent to act on
8793 * Returns: the name of the event.
8796 mono_event_get_name (MonoEvent *event)
8802 * mono_event_get_add_method:
8803 * @event: The MonoEvent to act on.
8805 * Returns: the @add' method for the event (a MonoMethod).
8808 mono_event_get_add_method (MonoEvent *event)
8814 * mono_event_get_remove_method:
8815 * @event: The MonoEvent to act on.
8817 * Returns: the @remove method for the event (a MonoMethod).
8820 mono_event_get_remove_method (MonoEvent *event)
8822 return event->remove;
8826 * mono_event_get_raise_method:
8827 * @event: The MonoEvent to act on.
8829 * Returns: the @raise method for the event (a MonoMethod).
8832 mono_event_get_raise_method (MonoEvent *event)
8834 return event->raise;
8838 * mono_event_get_parent:
8839 * @event: the MonoEvent to act on.
8841 * Returns: the MonoClass where the event is defined.
8844 mono_event_get_parent (MonoEvent *event)
8846 return event->parent;
8850 * mono_event_get_flags
8851 * @event: the MonoEvent to act on.
8853 * The metadata flags for an event are encoded using the
8854 * EVENT_* constants. See the tabledefs.h file for details.
8856 * Returns: the flags for the event.
8859 mono_event_get_flags (MonoEvent *event)
8861 return event->attrs;
8865 * mono_class_get_method_from_name:
8866 * @klass: where to look for the method
8867 * @name_space: name of the method
8868 * @param_count: number of parameters. -1 for any number.
8870 * Obtains a MonoMethod with a given name and number of parameters.
8871 * It only works if there are no multiple signatures for any given method name.
8874 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
8876 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
8880 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
8882 MonoMethod *res = NULL;
8885 /* Search directly in the metadata to avoid calling setup_methods () */
8886 for (i = 0; i < klass->method.count; ++i) {
8887 guint32 cols [MONO_METHOD_SIZE];
8889 MonoMethodSignature *sig;
8891 /* class->method.first points into the methodptr table */
8892 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
8894 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
8895 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8896 if (param_count == -1) {
8900 sig = mono_method_signature (method);
8901 if (sig && sig->param_count == param_count) {
8912 * mono_class_get_method_from_name_flags:
8913 * @klass: where to look for the method
8914 * @name_space: name of the method
8915 * @param_count: number of parameters. -1 for any number.
8916 * @flags: flags which must be set in the method
8918 * Obtains a MonoMethod with a given name and number of parameters.
8919 * It only works if there are no multiple signatures for any given method name.
8922 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
8924 MonoMethod *res = NULL;
8927 mono_class_init (klass);
8929 if (klass->generic_class && !klass->methods) {
8930 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
8932 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
8936 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
8937 mono_class_setup_methods (klass);
8939 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8940 See mono/tests/array_load_exception.il
8941 FIXME we should better report this error to the caller
8943 if (!klass->methods)
8945 for (i = 0; i < klass->method.count; ++i) {
8946 MonoMethod *method = klass->methods [i];
8948 if (method->name[0] == name [0] &&
8949 !strcmp (name, method->name) &&
8950 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
8951 ((method->flags & flags) == flags)) {
8958 res = find_method_in_metadata (klass, name, param_count, flags);
8965 * mono_class_set_failure:
8966 * @klass: class in which the failure was detected
8967 * @ex_type: the kind of exception/error to be thrown (later)
8968 * @ex_data: exception data (specific to each type of exception/error)
8970 * Keep a detected failure informations in the class for later processing.
8971 * Note that only the first failure is kept.
8973 * LOCKING: Acquires the loader lock.
8976 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
8978 if (klass->exception_type)
8981 mono_loader_lock ();
8982 klass->exception_type = ex_type;
8984 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
8985 mono_loader_unlock ();
8991 * mono_class_get_exception_data:
8993 * Return the exception_data property of KLASS.
8995 * LOCKING: Acquires the loader lock.
8998 mono_class_get_exception_data (MonoClass *klass)
9000 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
9004 * mono_classes_init:
9006 * Initialize the resources used by this module.
9009 mono_classes_init (void)
9011 mono_counters_register ("Inflated methods size",
9012 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
9013 mono_counters_register ("Inflated classes",
9014 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
9015 mono_counters_register ("Inflated classes size",
9016 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
9017 mono_counters_register ("MonoClass size",
9018 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
9019 mono_counters_register ("MonoClassExt size",
9020 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
9024 * mono_classes_cleanup:
9026 * Free the resources used by this module.
9029 mono_classes_cleanup (void)
9031 if (global_interface_bitset)
9032 mono_bitset_free (global_interface_bitset);
9033 global_interface_bitset = NULL;
9037 * mono_class_get_exception_for_failure:
9038 * @klass: class in which the failure was detected
9040 * Return a constructed MonoException than the caller can then throw
9041 * using mono_raise_exception - or NULL if no failure is present (or
9042 * doesn't result in an exception).
9045 mono_class_get_exception_for_failure (MonoClass *klass)
9047 gpointer exception_data = mono_class_get_exception_data (klass);
9049 switch (klass->exception_type) {
9050 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
9051 MonoDomain *domain = mono_domain_get ();
9052 MonoSecurityManager* secman = mono_security_manager_get_methods ();
9053 MonoMethod *method = exception_data;
9054 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
9055 MonoObject *exc = NULL;
9059 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
9060 args [2] = mono_type_get_object (domain, &klass->byval_arg);
9061 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
9063 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
9064 return (MonoException*) exc;
9066 case MONO_EXCEPTION_TYPE_LOAD: {
9069 char *str = mono_type_get_full_name (klass);
9070 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
9071 name = mono_string_new (mono_domain_get (), str);
9073 ex = mono_get_exception_type_load (name, astr);
9077 case MONO_EXCEPTION_MISSING_METHOD: {
9078 char *class_name = exception_data;
9079 char *assembly_name = class_name + strlen (class_name) + 1;
9081 return mono_get_exception_missing_method (class_name, assembly_name);
9083 case MONO_EXCEPTION_MISSING_FIELD: {
9084 char *class_name = exception_data;
9085 char *member_name = class_name + strlen (class_name) + 1;
9087 return mono_get_exception_missing_field (class_name, member_name);
9089 case MONO_EXCEPTION_FILE_NOT_FOUND: {
9090 char *msg_format = exception_data;
9091 char *assembly_name = msg_format + strlen (msg_format) + 1;
9092 char *msg = g_strdup_printf (msg_format, assembly_name);
9095 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
9101 case MONO_EXCEPTION_BAD_IMAGE: {
9102 return mono_get_exception_bad_image_format (exception_data);
9105 MonoLoaderError *error;
9108 error = mono_loader_get_last_error ();
9110 ex = mono_loader_error_prepare_exception (error);
9114 /* TODO - handle other class related failures */
9121 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
9123 outer_klass = mono_class_get_generic_type_definition (outer_klass);
9124 inner_klass = mono_class_get_generic_type_definition (inner_klass);
9126 if (outer_klass == inner_klass)
9128 inner_klass = inner_klass->nested_in;
9129 } while (inner_klass);
9134 mono_class_get_generic_type_definition (MonoClass *klass)
9136 return klass->generic_class ? klass->generic_class->container_class : klass;
9140 * Check if @klass is a subtype of @parent ignoring generic instantiations.
9142 * Generic instantiations are ignored for all super types of @klass.
9144 * Visibility checks ignoring generic instantiations.
9147 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
9150 klass = mono_class_get_generic_type_definition (klass);
9151 parent = mono_class_get_generic_type_definition (parent);
9152 mono_class_setup_supertypes (klass);
9154 for (i = 0; i < klass->idepth; ++i) {
9155 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
9161 * Subtype can only access parent members with family protection if the site object
9162 * is subclass of Subtype. For example:
9163 * class A { protected int x; }
9165 * void valid_access () {
9169 * void invalid_access () {
9176 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
9178 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
9181 if (context_klass == NULL)
9183 /*if access_klass is not member_klass context_klass must be type compat*/
9184 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
9190 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
9193 if (accessing == accessed)
9195 if (!accessed || !accessing)
9198 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
9199 * anywhere so untrusted friends are not safe to access platform's code internals */
9200 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
9201 if (!mono_security_core_clr_can_access_internals (accessing->image, accessed->image))
9205 mono_assembly_load_friends (accessed);
9206 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
9207 MonoAssemblyName *friend = tmp->data;
9208 /* Be conservative with checks */
9211 if (strcmp (accessing->aname.name, friend->name))
9213 if (friend->public_key_token [0]) {
9214 if (!accessing->aname.public_key_token [0])
9216 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
9225 * If klass is a generic type or if it is derived from a generic type, return the
9226 * MonoClass of the generic definition
9227 * Returns NULL if not found
9230 get_generic_definition_class (MonoClass *klass)
9233 if (klass->generic_class && klass->generic_class->container_class)
9234 return klass->generic_class->container_class;
9235 klass = klass->parent;
9241 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
9244 for (i = 0; i < ginst->type_argc; ++i) {
9245 MonoType *type = ginst->type_argv[i];
9246 switch (type->type) {
9247 case MONO_TYPE_SZARRAY:
9248 if (!can_access_type (access_klass, type->data.klass))
9251 case MONO_TYPE_ARRAY:
9252 if (!can_access_type (access_klass, type->data.array->eklass))
9256 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
9259 case MONO_TYPE_CLASS:
9260 case MONO_TYPE_VALUETYPE:
9261 case MONO_TYPE_GENERICINST:
9262 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
9270 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
9274 if (access_klass->image->assembly && access_klass->image->assembly->corlib_internal)
9277 if (access_klass->element_class && !access_klass->enumtype)
9278 access_klass = access_klass->element_class;
9280 if (member_klass->element_class && !member_klass->enumtype)
9281 member_klass = member_klass->element_class;
9283 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
9285 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
9288 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
9291 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
9294 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
9297 /*Non nested type with nested visibility. We just fail it.*/
9298 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
9301 switch (access_level) {
9302 case TYPE_ATTRIBUTE_NOT_PUBLIC:
9303 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9305 case TYPE_ATTRIBUTE_PUBLIC:
9308 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
9311 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
9312 return is_nesting_type (member_klass, access_klass);
9314 case TYPE_ATTRIBUTE_NESTED_FAMILY:
9315 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9317 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
9318 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9320 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
9321 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
9322 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9324 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
9325 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
9326 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9331 /* FIXME: check visibility of type, too */
9333 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
9335 MonoClass *member_generic_def;
9336 if (access_klass->image->assembly && access_klass->image->assembly->corlib_internal)
9339 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
9340 access_klass->generic_container) &&
9341 (member_generic_def = get_generic_definition_class (member_klass))) {
9342 MonoClass *access_container;
9344 if (access_klass->generic_container)
9345 access_container = access_klass;
9347 access_container = access_klass->generic_class->container_class;
9349 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
9353 /* Partition I 8.5.3.2 */
9354 /* the access level values are the same for fields and methods */
9355 switch (access_level) {
9356 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
9357 /* same compilation unit */
9358 return access_klass->image == member_klass->image;
9359 case FIELD_ATTRIBUTE_PRIVATE:
9360 return access_klass == member_klass;
9361 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
9362 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
9363 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
9366 case FIELD_ATTRIBUTE_ASSEMBLY:
9367 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9368 case FIELD_ATTRIBUTE_FAMILY:
9369 if (is_valid_family_access (access_klass, member_klass, context_klass))
9372 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
9373 if (is_valid_family_access (access_klass, member_klass, context_klass))
9375 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9376 case FIELD_ATTRIBUTE_PUBLIC:
9383 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
9385 /* FIXME: check all overlapping fields */
9386 int can = can_access_member (method->klass, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9388 MonoClass *nested = method->klass->nested_in;
9390 can = can_access_member (nested, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9393 nested = nested->nested_in;
9400 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
9402 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9404 MonoClass *nested = method->klass->nested_in;
9406 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9409 nested = nested->nested_in;
9414 * with generics calls to explicit interface implementations can be expressed
9415 * directly: the method is private, but we must allow it. This may be opening
9416 * a hole or the generics code should handle this differently.
9417 * Maybe just ensure the interface type is public.
9419 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
9425 * mono_method_can_access_method_full:
9426 * @method: The caller method
9427 * @called: The called method
9428 * @context_klass: The static type on stack of the owner @called object used
9430 * This function must be used with instance calls, as they have more strict family accessibility.
9431 * It can be used with static methods, but context_klass should be NULL.
9433 * Returns: TRUE if caller have proper visibility and acessibility to @called
9436 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
9438 MonoClass *access_class = method->klass;
9439 MonoClass *member_class = called->klass;
9440 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9442 MonoClass *nested = access_class->nested_in;
9444 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9447 nested = nested->nested_in;
9454 can = can_access_type (access_class, member_class);
9456 MonoClass *nested = access_class->nested_in;
9458 can = can_access_type (nested, member_class);
9461 nested = nested->nested_in;
9468 if (called->is_inflated) {
9469 MonoMethodInflated * infl = (MonoMethodInflated*)called;
9470 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
9479 * mono_method_can_access_field_full:
9480 * @method: The caller method
9481 * @field: The accessed field
9482 * @context_klass: The static type on stack of the owner @field object used
9484 * This function must be used with instance fields, as they have more strict family accessibility.
9485 * It can be used with static fields, but context_klass should be NULL.
9487 * Returns: TRUE if caller have proper visibility and acessibility to @field
9490 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
9492 MonoClass *access_class = method->klass;
9493 MonoClass *member_class = field->parent;
9494 /* FIXME: check all overlapping fields */
9495 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9497 MonoClass *nested = access_class->nested_in;
9499 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9502 nested = nested->nested_in;
9509 can = can_access_type (access_class, member_class);
9511 MonoClass *nested = access_class->nested_in;
9513 can = can_access_type (nested, member_class);
9516 nested = nested->nested_in;
9526 * mono_type_is_valid_enum_basetype:
9527 * @type: The MonoType to check
9529 * Returns: TRUE if the type can be used as the basetype of an enum
9531 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
9532 switch (type->type) {
9535 case MONO_TYPE_BOOLEAN:
9538 case MONO_TYPE_CHAR:
9551 * mono_class_is_valid_enum:
9552 * @klass: An enum class to be validated
9554 * This method verify the required properties an enum should have.
9556 * Returns: TRUE if the informed enum class is valid
9558 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
9559 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
9560 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
9562 gboolean mono_class_is_valid_enum (MonoClass *klass) {
9563 MonoClassField * field;
9564 gpointer iter = NULL;
9565 gboolean found_base_field = FALSE;
9567 g_assert (klass->enumtype);
9568 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
9569 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
9573 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
9576 while ((field = mono_class_get_fields (klass, &iter))) {
9577 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
9578 if (found_base_field)
9580 found_base_field = TRUE;
9581 if (!mono_type_is_valid_enum_basetype (field->type))
9586 if (!found_base_field)
9589 if (klass->method.count > 0)
9596 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
9598 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
9602 * mono_class_setup_interface_id:
9604 * Initializes MonoClass::interface_id if required.
9606 * LOCKING: Acquires the loader lock.
9609 mono_class_setup_interface_id (MonoClass *class)
9611 mono_loader_lock ();
9612 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
9613 class->interface_id = mono_get_unique_iid (class);
9614 mono_loader_unlock ();
9618 * mono_class_alloc_ext:
9620 * Allocate klass->ext if not already done.
9621 * LOCKING: Assumes the loader lock is held.
9624 mono_class_alloc_ext (MonoClass *klass)
9627 klass->ext = mono_class_alloc0 (klass, sizeof (MonoClassExt));
9628 class_ext_size += sizeof (MonoClassExt);
9633 * mono_class_setup_interfaces:
9635 * Initialize class->interfaces/interfaces_count.
9636 * LOCKING: Acquires the loader lock.
9637 * This function can fail the type.
9640 mono_class_setup_interfaces (MonoClass *klass, MonoError *error)
9644 mono_error_init (error);
9646 if (klass->interfaces_inited)
9649 mono_loader_lock ();
9651 if (klass->interfaces_inited) {
9652 mono_loader_unlock ();
9656 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
9659 /* generic IList, ICollection, IEnumerable */
9660 klass->interface_count = 1;
9661 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
9663 args [0] = &klass->element_class->byval_arg;
9664 klass->interfaces [0] = mono_class_bind_generic_parameters (
9665 mono_defaults.generic_ilist_class, 1, args, FALSE);
9666 } else if (klass->generic_class) {
9667 MonoClass *gklass = klass->generic_class->container_class;
9669 klass->interface_count = gklass->interface_count;
9670 klass->interfaces = mono_class_new0 (klass, MonoClass *, klass->interface_count);
9671 for (i = 0; i < klass->interface_count; i++) {
9672 klass->interfaces [i] = mono_class_inflate_generic_class_checked (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class), error);
9673 if (!mono_error_ok (error)) {
9674 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not setup the interfaces"));
9675 klass->interfaces = NULL;
9681 mono_memory_barrier ();
9683 klass->interfaces_inited = TRUE;
9685 mono_loader_unlock ();
9689 mono_field_resolve_type (MonoClassField *field, MonoError *error)
9691 MonoClass *class = field->parent;
9692 MonoImage *image = class->image;
9693 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9694 int field_idx = field - class->fields;
9696 mono_error_init (error);
9699 MonoClassField *gfield = >d->fields [field_idx];
9700 MonoType *gtype = mono_field_get_type_checked (gfield, error);
9701 if (!mono_error_ok (error)) {
9702 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9703 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9707 field->type = mono_class_inflate_generic_type_no_copy (image, gtype, mono_class_get_context (class), error);
9708 if (!mono_error_ok (error)) {
9709 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9710 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9715 guint32 cols [MONO_FIELD_SIZE];
9716 MonoGenericContainer *container = NULL;
9717 int idx = class->field.first + field_idx;
9719 /*FIXME, in theory we do not lazy load SRE fields*/
9720 g_assert (!image->dynamic);
9722 if (class->generic_container) {
9723 container = class->generic_container;
9725 container = gtd->generic_container;
9726 g_assert (container);
9729 /* class->field.first and idx points into the fieldptr table */
9730 mono_metadata_decode_table_row (image, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
9732 if (!mono_verifier_verify_field_signature (image, cols [MONO_FIELD_SIGNATURE], NULL)) {
9733 mono_error_set_type_load_class (error, class, "Could not verify field %s signature", field->name);
9734 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9738 sig = mono_metadata_blob_heap (image, cols [MONO_FIELD_SIGNATURE]);
9740 mono_metadata_decode_value (sig, &sig);
9741 /* FIELD signature == 0x06 */
9742 g_assert (*sig == 0x06);
9743 field->type = mono_metadata_parse_type_full (image, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
9745 mono_error_set_type_load_class (error, class, "Could not load field %s type", field->name);
9746 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9747 mono_loader_clear_error ();
9753 mono_field_resolve_flags (MonoClassField *field)
9755 MonoClass *class = field->parent;
9756 MonoImage *image = class->image;
9757 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9758 int field_idx = field - class->fields;
9762 MonoClassField *gfield = >d->fields [field_idx];
9763 return mono_field_get_flags (gfield);
9765 int idx = class->field.first + field_idx;
9767 /*FIXME, in theory we do not lazy load SRE fields*/
9768 g_assert (!image->dynamic);
9770 return mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_FLAGS);
9775 * mono_class_setup_basic_field_info:
9776 * @class: The class to initialize
9778 * Initializes the class->fields array of fields.
9779 * Aquires the loader lock.
9782 mono_class_setup_basic_field_info_locking (MonoClass *class)
9784 mono_loader_lock ();
9785 mono_class_setup_basic_field_info (class);
9786 mono_loader_unlock ();
9790 * mono_class_get_fields_lazy:
9791 * @klass: the MonoClass to act on
9793 * This routine is an iterator routine for retrieving the fields in a class.
9794 * Only minimal information about fields are loaded. Accessors must be used
9795 * for all MonoClassField returned.
9797 * You must pass a gpointer that points to zero and is treated as an opaque handle to
9798 * iterate over all of the elements. When no more values are
9799 * available, the return value is NULL.
9801 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
9804 mono_class_get_fields_lazy (MonoClass* klass, gpointer *iter)
9806 MonoClassField* field;
9810 mono_class_setup_basic_field_info_locking (klass);
9813 /* start from the first */
9814 if (klass->field.count) {
9815 return *iter = &klass->fields [0];
9823 if (field < &klass->fields [klass->field.count]) {
9824 return *iter = field;