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;
1406 mono_memory_barrier ();
1407 class->fields_inited = 1;
1411 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1414 /* Prevent infinite loops if the class references itself */
1415 class->size_inited = 1;
1417 if (class->generic_container) {
1418 container = class->generic_container;
1420 container = gtd->generic_container;
1421 g_assert (container);
1425 * Fetch all the field information.
1427 for (i = 0; i < top; i++){
1428 int idx = class->field.first + i;
1429 field = &class->fields [i];
1431 field->parent = class;
1434 mono_field_resolve_type (field, &error);
1435 if (!mono_error_ok (&error)) {
1436 /*mono_field_resolve_type already failed class*/
1437 mono_error_cleanup (&error);
1441 g_error ("could not resolve %s:%s\n", mono_type_get_full_name(class), field->name);
1442 g_assert (field->type);
1445 if (mono_field_is_deleted (field))
1448 MonoClassField *gfield = >d->fields [i];
1449 field->offset = gfield->offset;
1451 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1453 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1454 field->offset = offset;
1456 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1457 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Missing field layout info for %s", field->name));
1460 if (field->offset < -1) { /*-1 is used to encode special static fields */
1461 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Invalid negative field offset %d for %s", field->offset, field->name));
1467 /* Only do these checks if we still think this type is blittable */
1468 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1469 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1472 MonoClass *field_class = mono_class_from_mono_type (field->type);
1474 mono_class_setup_fields (field_class);
1475 if (field_class->exception_type) {
1476 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1480 if (!field_class || !field_class->blittable)
1485 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1486 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1487 blittable = class->element_class->blittable;
1490 if (mono_type_has_exceptions (field->type)) {
1491 char *class_name = mono_type_get_full_name (class);
1492 char *type_name = mono_type_full_name (field->type);
1494 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1495 g_warning ("Invalid type %s for instance field %s:%s", type_name, class_name, field->name);
1496 g_free (class_name);
1500 /* The def_value of fields is compute lazily during vtable creation */
1503 if (class == mono_defaults.string_class)
1506 class->blittable = blittable;
1508 if (class->enumtype && !mono_class_enum_basetype (class)) {
1509 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1512 if (explicit_size && real_size) {
1513 class->instance_size = MAX (real_size, class->instance_size);
1516 if (class->exception_type)
1518 mono_class_layout_fields (class);
1520 /*valuetypes can't be neither bigger than 1Mb or empty. */
1521 if (class->valuetype && (class->instance_size <= 0 || class->instance_size > (0x100000 + sizeof (MonoObject))))
1522 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1524 mono_memory_barrier ();
1525 class->fields_inited = 1;
1529 * mono_class_setup_fields_locking:
1530 * @class: The class to initialize
1532 * Initializes the class->fields array of fields.
1533 * Aquires the loader lock.
1536 mono_class_setup_fields_locking (MonoClass *class)
1538 /* This can be checked without locks */
1539 if (class->fields_inited)
1541 mono_loader_lock ();
1542 mono_class_setup_fields (class);
1543 mono_loader_unlock ();
1547 * mono_class_has_references:
1549 * Returns whenever @klass->has_references is set, initializing it if needed.
1550 * Aquires the loader lock.
1553 mono_class_has_references (MonoClass *klass)
1555 if (klass->init_pending) {
1556 /* Be conservative */
1559 mono_class_init (klass);
1561 return klass->has_references;
1566 * mono_type_get_basic_type_from_generic:
1569 * Returns a closed type corresponding to the possibly open type
1573 mono_type_get_basic_type_from_generic (MonoType *type)
1575 /* When we do generic sharing we let type variables stand for reference types. */
1576 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1577 return &mono_defaults.object_class->byval_arg;
1582 * mono_class_layout_fields:
1585 * Compute the placement of fields inside an object or struct, according to
1586 * the layout rules and set the following fields in @class:
1587 * - has_references (if the class contains instance references firled or structs that contain references)
1588 * - has_static_refs (same, but for static fields)
1589 * - instance_size (size of the object in memory)
1590 * - class_size (size needed for the static fields)
1591 * - size_inited (flag set when the instance_size is set)
1593 * LOCKING: this is supposed to be called with the loader lock held.
1596 mono_class_layout_fields (MonoClass *class)
1599 const int top = class->field.count;
1600 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1601 guint32 pass, passes, real_size;
1602 gboolean gc_aware_layout = FALSE;
1603 MonoClassField *field;
1606 * When we do generic sharing we need to have layout
1607 * information for open generic classes (either with a generic
1608 * context containing type variables or with a generic
1609 * container), so we don't return in that case anymore.
1613 * Enable GC aware auto layout: in this mode, reference
1614 * fields are grouped together inside objects, increasing collector
1616 * Requires that all classes whose layout is known to native code be annotated
1617 * with [StructLayout (LayoutKind.Sequential)]
1618 * Value types have gc_aware_layout disabled by default, as per
1619 * what the default is for other runtimes.
1621 /* corlib is missing [StructLayout] directives in many places */
1622 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1623 if (class->byval_arg.type != MONO_TYPE_VALUETYPE)
1624 gc_aware_layout = TRUE;
1627 /* Compute klass->has_references */
1629 * Process non-static fields first, since static fields might recursively
1630 * refer to the class itself.
1632 for (i = 0; i < top; i++) {
1635 field = &class->fields [i];
1637 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1638 ftype = mono_type_get_underlying_type (field->type);
1639 ftype = mono_type_get_basic_type_from_generic (ftype);
1640 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1641 class->has_references = TRUE;
1645 for (i = 0; i < top; i++) {
1648 field = &class->fields [i];
1650 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1651 ftype = mono_type_get_underlying_type (field->type);
1652 ftype = mono_type_get_basic_type_from_generic (ftype);
1653 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1654 class->has_static_refs = TRUE;
1658 for (i = 0; i < top; i++) {
1661 field = &class->fields [i];
1663 ftype = mono_type_get_underlying_type (field->type);
1664 ftype = mono_type_get_basic_type_from_generic (ftype);
1665 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1666 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1667 class->has_static_refs = TRUE;
1669 class->has_references = TRUE;
1674 * Compute field layout and total size (not considering static fields)
1678 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1679 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1681 if (gc_aware_layout)
1686 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1689 if (class->parent) {
1690 mono_class_setup_fields (class->parent);
1691 if (class->parent->exception_type) {
1692 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1695 real_size = class->parent->instance_size;
1697 real_size = sizeof (MonoObject);
1700 for (pass = 0; pass < passes; ++pass) {
1701 for (i = 0; i < top; i++){
1706 field = &class->fields [i];
1708 if (mono_field_is_deleted (field))
1710 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1713 ftype = mono_type_get_underlying_type (field->type);
1714 ftype = mono_type_get_basic_type_from_generic (ftype);
1715 if (gc_aware_layout) {
1716 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1725 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1726 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1727 /* This field is a hack inserted by MCS to empty structures */
1731 size = mono_type_size (field->type, &align);
1733 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1734 align = class->packing_size ? MIN (class->packing_size, align): align;
1735 /* if the field has managed references, we need to force-align it
1738 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1739 align = MAX (align, sizeof (gpointer));
1741 class->min_align = MAX (align, class->min_align);
1742 field->offset = real_size;
1744 field->offset += align - 1;
1745 field->offset &= ~(align - 1);
1747 /*TypeBuilders produce all sort of weird things*/
1748 g_assert (class->image->dynamic || field->offset > 0);
1749 real_size = field->offset + size;
1752 class->instance_size = MAX (real_size, class->instance_size);
1754 if (class->instance_size & (class->min_align - 1)) {
1755 class->instance_size += class->min_align - 1;
1756 class->instance_size &= ~(class->min_align - 1);
1760 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1762 for (i = 0; i < top; i++) {
1767 field = &class->fields [i];
1770 * There must be info about all the fields in a type if it
1771 * uses explicit layout.
1774 if (mono_field_is_deleted (field))
1776 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1779 size = mono_type_size (field->type, &align);
1780 align = class->packing_size ? MIN (class->packing_size, align): align;
1781 class->min_align = MAX (align, class->min_align);
1784 * When we get here, field->offset is already set by the
1785 * loader (for either runtime fields or fields loaded from metadata).
1786 * The offset is from the start of the object: this works for both
1787 * classes and valuetypes.
1789 field->offset += sizeof (MonoObject);
1790 ftype = mono_type_get_underlying_type (field->type);
1791 ftype = mono_type_get_basic_type_from_generic (ftype);
1792 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1793 if (field->offset % sizeof (gpointer)) {
1794 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1801 real_size = MAX (real_size, size + field->offset);
1803 class->instance_size = MAX (real_size, class->instance_size);
1804 if (class->instance_size & (class->min_align - 1)) {
1805 class->instance_size += class->min_align - 1;
1806 class->instance_size &= ~(class->min_align - 1);
1811 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1813 * For small structs, set min_align to at least the struct size to improve
1814 * performance, and since the JIT memset/memcpy code assumes this and generates
1815 * unaligned accesses otherwise. See #78990 for a testcase.
1817 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1818 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1821 class->size_inited = 1;
1824 * Compute static field layout and size
1826 for (i = 0; i < top; i++){
1830 field = &class->fields [i];
1832 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1834 if (mono_field_is_deleted (field))
1837 if (mono_type_has_exceptions (field->type)) {
1838 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1842 size = mono_type_size (field->type, &align);
1843 field->offset = class->sizes.class_size;
1844 /*align is always non-zero here*/
1845 field->offset += align - 1;
1846 field->offset &= ~(align - 1);
1847 class->sizes.class_size = field->offset + size;
1852 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1856 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1857 method->klass = class;
1858 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1859 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1860 method->signature = sig;
1861 method->name = name;
1864 if (name [0] == '.') {
1865 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1867 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1873 * mono_class_setup_methods:
1876 * Initializes the 'methods' array in the klass.
1877 * Calling this method should be avoided if possible since it allocates a lot
1878 * of long-living MonoMethod structures.
1879 * Methods belonging to an interface are assigned a sequential slot starting
1882 * On failure this function sets class->exception_type
1885 mono_class_setup_methods (MonoClass *class)
1888 MonoMethod **methods;
1893 mono_loader_lock ();
1895 if (class->methods) {
1896 mono_loader_unlock ();
1900 if (class->generic_class) {
1902 MonoClass *gklass = class->generic_class->container_class;
1904 mono_class_init (gklass);
1905 if (!gklass->exception_type)
1906 mono_class_setup_methods (gklass);
1907 if (gklass->exception_type) {
1908 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1909 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
1910 mono_loader_unlock ();
1914 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1915 class->method.count = gklass->method.count;
1916 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * (class->method.count + 1));
1918 for (i = 0; i < class->method.count; i++) {
1919 methods [i] = mono_class_inflate_generic_method_full_checked (
1920 gklass->methods [i], class, mono_class_get_context (class), &error);
1921 if (!mono_error_ok (&error)) {
1922 char *method = mono_method_full_name (gklass->methods [i], TRUE);
1923 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)));
1926 mono_error_cleanup (&error);
1927 mono_loader_unlock ();
1931 } else if (class->rank) {
1933 MonoMethod *amethod;
1934 MonoMethodSignature *sig;
1935 int count_generic = 0, first_generic = 0;
1938 class->method.count = 3 + (class->rank > 1? 2: 1);
1940 mono_class_setup_interfaces (class, &error);
1941 g_assert (mono_error_ok (&error)); /*FIXME can this fail for array types?*/
1943 if (class->interface_count) {
1944 count_generic = generic_array_methods (class);
1945 first_generic = class->method.count;
1946 class->method.count += class->interface_count * count_generic;
1949 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * class->method.count);
1951 sig = mono_metadata_signature_alloc (class->image, class->rank);
1952 sig->ret = &mono_defaults.void_class->byval_arg;
1953 sig->pinvoke = TRUE;
1954 sig->hasthis = TRUE;
1955 for (i = 0; i < class->rank; ++i)
1956 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1958 amethod = create_array_method (class, ".ctor", sig);
1959 methods [method_num++] = amethod;
1960 if (class->rank > 1) {
1961 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1962 sig->ret = &mono_defaults.void_class->byval_arg;
1963 sig->pinvoke = TRUE;
1964 sig->hasthis = TRUE;
1965 for (i = 0; i < class->rank * 2; ++i)
1966 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1968 amethod = create_array_method (class, ".ctor", sig);
1969 methods [method_num++] = amethod;
1971 /* element Get (idx11, [idx2, ...]) */
1972 sig = mono_metadata_signature_alloc (class->image, class->rank);
1973 sig->ret = &class->element_class->byval_arg;
1974 sig->pinvoke = TRUE;
1975 sig->hasthis = TRUE;
1976 for (i = 0; i < class->rank; ++i)
1977 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1978 amethod = create_array_method (class, "Get", sig);
1979 methods [method_num++] = amethod;
1980 /* element& Address (idx11, [idx2, ...]) */
1981 sig = mono_metadata_signature_alloc (class->image, class->rank);
1982 sig->ret = &class->element_class->this_arg;
1983 sig->pinvoke = TRUE;
1984 sig->hasthis = TRUE;
1985 for (i = 0; i < class->rank; ++i)
1986 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1987 amethod = create_array_method (class, "Address", sig);
1988 methods [method_num++] = amethod;
1989 /* void Set (idx11, [idx2, ...], element) */
1990 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1991 sig->ret = &mono_defaults.void_class->byval_arg;
1992 sig->pinvoke = TRUE;
1993 sig->hasthis = TRUE;
1994 for (i = 0; i < class->rank; ++i)
1995 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1996 sig->params [i] = &class->element_class->byval_arg;
1997 amethod = create_array_method (class, "Set", sig);
1998 methods [method_num++] = amethod;
2000 for (i = 0; i < class->interface_count; i++)
2001 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
2003 methods = mono_class_alloc (class, sizeof (MonoMethod*) * class->method.count);
2004 for (i = 0; i < class->method.count; ++i) {
2005 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
2006 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
2010 if (MONO_CLASS_IS_INTERFACE (class)) {
2012 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
2013 for (i = 0; i < class->method.count; ++i) {
2014 if (methods [i]->flags & METHOD_ATTRIBUTE_VIRTUAL)
2015 methods [i]->slot = slot++;
2019 /* Needed because of the double-checking locking pattern */
2020 mono_memory_barrier ();
2022 class->methods = methods;
2024 if (mono_debugger_class_loaded_methods_func)
2025 mono_debugger_class_loaded_methods_func (class);
2027 mono_loader_unlock ();
2031 * mono_class_get_method_by_index:
2033 * Returns class->methods [index], initializing class->methods if neccesary.
2035 * LOCKING: Acquires the loader lock.
2038 mono_class_get_method_by_index (MonoClass *class, int index)
2040 /* Avoid calling setup_methods () if possible */
2041 if (class->generic_class && !class->methods) {
2042 MonoClass *gklass = class->generic_class->container_class;
2045 m = mono_class_inflate_generic_method_full (
2046 gklass->methods [index], class, mono_class_get_context (class));
2048 * If setup_methods () is called later for this class, no duplicates are created,
2049 * since inflate_generic_method guarantees that only one instance of a method
2050 * is created for each context.
2053 mono_class_setup_methods (class);
2054 g_assert (m == class->methods [index]);
2058 mono_class_setup_methods (class);
2059 if (class->exception_type) /*FIXME do proper error handling*/
2061 g_assert (index >= 0 && index < class->method.count);
2062 return class->methods [index];
2067 * mono_class_get_inflated_method:
2069 * Given an inflated class CLASS and a method METHOD which should be a method of
2070 * CLASS's generic definition, return the inflated method corresponding to METHOD.
2073 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
2075 MonoClass *gklass = class->generic_class->container_class;
2078 g_assert (method->klass == gklass);
2080 mono_class_setup_methods (gklass);
2081 g_assert (!gklass->exception_type); /*FIXME do proper error handling*/
2083 for (i = 0; i < gklass->method.count; ++i) {
2084 if (gklass->methods [i] == method) {
2086 return class->methods [i];
2088 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
2096 * mono_class_get_vtable_entry:
2098 * Returns class->vtable [offset], computing it if neccesary. Returns NULL on failure.
2099 * LOCKING: Acquires the loader lock.
2102 mono_class_get_vtable_entry (MonoClass *class, int offset)
2106 if (class->rank == 1) {
2108 * szarrays do not overwrite any methods of Array, so we can avoid
2109 * initializing their vtables in some cases.
2111 mono_class_setup_vtable (class->parent);
2112 if (offset < class->parent->vtable_size)
2113 return class->parent->vtable [offset];
2116 if (class->generic_class) {
2117 MonoClass *gklass = class->generic_class->container_class;
2118 mono_class_setup_vtable (gklass);
2119 m = gklass->vtable [offset];
2121 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
2123 mono_class_setup_vtable (class);
2124 if (class->exception_type)
2126 m = class->vtable [offset];
2133 * mono_class_get_vtable_size:
2135 * Return the vtable size for KLASS.
2138 mono_class_get_vtable_size (MonoClass *klass)
2140 mono_class_setup_vtable (klass);
2142 return klass->vtable_size;
2145 /*This method can fail the class.*/
2147 mono_class_setup_properties (MonoClass *class)
2149 guint startm, endm, i, j;
2150 guint32 cols [MONO_PROPERTY_SIZE];
2151 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2152 MonoProperty *properties;
2155 if (class->ext && class->ext->properties)
2158 mono_loader_lock ();
2160 if (class->ext && class->ext->properties) {
2161 mono_loader_unlock ();
2165 mono_class_alloc_ext (class);
2167 if (class->generic_class) {
2168 MonoClass *gklass = class->generic_class->container_class;
2170 mono_class_init (gklass);
2171 mono_class_setup_properties (gklass);
2172 if (gklass->exception_type) {
2173 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2174 mono_loader_unlock ();
2178 class->ext->property = gklass->ext->property;
2180 properties = mono_class_new0 (class, MonoProperty, class->ext->property.count + 1);
2182 for (i = 0; i < class->ext->property.count; i++) {
2183 MonoProperty *prop = &properties [i];
2185 *prop = gklass->ext->properties [i];
2188 prop->get = mono_class_inflate_generic_method_full (
2189 prop->get, class, mono_class_get_context (class));
2191 prop->set = mono_class_inflate_generic_method_full (
2192 prop->set, class, mono_class_get_context (class));
2194 prop->parent = class;
2197 int first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2198 int count = last - first;
2201 mono_class_setup_methods (class);
2202 if (class->exception_type) {
2203 mono_loader_unlock ();
2208 class->ext->property.first = first;
2209 class->ext->property.count = count;
2210 properties = mono_class_alloc0 (class, sizeof (MonoProperty) * count);
2211 for (i = first; i < last; ++i) {
2212 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
2213 properties [i - first].parent = class;
2214 properties [i - first].attrs = cols [MONO_PROPERTY_FLAGS];
2215 properties [i - first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
2217 startm = mono_metadata_methods_from_property (class->image, i, &endm);
2218 for (j = startm; j < endm; ++j) {
2221 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2223 if (class->image->uncompressed_metadata)
2224 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2225 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2227 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2229 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2230 case METHOD_SEMANTIC_SETTER:
2231 properties [i - first].set = method;
2233 case METHOD_SEMANTIC_GETTER:
2234 properties [i - first].get = method;
2242 /*Flush any pending writes as we do double checked locking on class->properties */
2243 mono_memory_barrier ();
2245 /* Leave this assignment as the last op in the function */
2246 class->ext->properties = properties;
2248 mono_loader_unlock ();
2252 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
2254 MonoMethod **om, **retval;
2257 for (om = methods, count = 0; *om; ++om, ++count)
2260 retval = g_new0 (MonoMethod*, count + 1);
2262 for (om = methods, count = 0; *om; ++om, ++count)
2263 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
2268 /*This method can fail the class.*/
2270 mono_class_setup_events (MonoClass *class)
2273 guint startm, endm, i, j;
2274 guint32 cols [MONO_EVENT_SIZE];
2275 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2279 if (class->ext && class->ext->events)
2282 mono_loader_lock ();
2284 if (class->ext && class->ext->events) {
2285 mono_loader_unlock ();
2289 mono_class_alloc_ext (class);
2291 if (class->generic_class) {
2292 MonoClass *gklass = class->generic_class->container_class;
2293 MonoGenericContext *context;
2295 mono_class_setup_events (gklass);
2296 if (gklass->exception_type) {
2297 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2298 mono_loader_unlock ();
2302 class->ext->event = gklass->ext->event;
2303 class->ext->events = mono_class_new0 (class, MonoEvent, class->ext->event.count);
2305 if (class->ext->event.count)
2306 context = mono_class_get_context (class);
2308 for (i = 0; i < class->ext->event.count; i++) {
2309 MonoEvent *event = &class->ext->events [i];
2310 MonoEvent *gevent = &gklass->ext->events [i];
2312 event->parent = class;
2313 event->name = gevent->name;
2314 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2315 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2316 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2317 #ifndef MONO_SMALL_CONFIG
2318 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2320 event->attrs = gevent->attrs;
2323 mono_loader_unlock ();
2327 first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2328 count = last - first;
2331 mono_class_setup_methods (class);
2332 if (class->exception_type) {
2333 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2334 mono_loader_unlock ();
2338 class->ext->event.first = first;
2339 class->ext->event.count = count;
2340 events = mono_class_alloc0 (class, sizeof (MonoEvent) * class->ext->event.count);
2341 for (i = first; i < last; ++i) {
2342 MonoEvent *event = &events [i - first];
2344 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2345 event->parent = class;
2346 event->attrs = cols [MONO_EVENT_FLAGS];
2347 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2349 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2350 for (j = startm; j < endm; ++j) {
2353 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2355 if (class->image->uncompressed_metadata)
2356 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2357 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2359 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2361 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2362 case METHOD_SEMANTIC_ADD_ON:
2363 event->add = method;
2365 case METHOD_SEMANTIC_REMOVE_ON:
2366 event->remove = method;
2368 case METHOD_SEMANTIC_FIRE:
2369 event->raise = method;
2371 case METHOD_SEMANTIC_OTHER: {
2372 #ifndef MONO_SMALL_CONFIG
2375 if (event->other == NULL) {
2376 event->other = g_new0 (MonoMethod*, 2);
2378 while (event->other [n])
2380 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2382 event->other [n] = method;
2383 /* NULL terminated */
2384 event->other [n + 1] = NULL;
2393 /*Flush any pending writes as we do double checked locking on class->properties */
2394 mono_memory_barrier ();
2396 /* Leave this assignment as the last op in the function */
2397 class->ext->events = events;
2399 mono_loader_unlock ();
2403 * Global pool of interface IDs, represented as a bitset.
2404 * LOCKING: this is supposed to be accessed with the loader lock held.
2406 static MonoBitSet *global_interface_bitset = NULL;
2409 * mono_unload_interface_ids:
2410 * @bitset: bit set of interface IDs
2412 * When an image is unloaded, the interface IDs associated with
2413 * the image are put back in the global pool of IDs so the numbers
2417 mono_unload_interface_ids (MonoBitSet *bitset)
2419 mono_loader_lock ();
2420 mono_bitset_sub (global_interface_bitset, bitset);
2421 mono_loader_unlock ();
2425 mono_unload_interface_id (MonoClass *class)
2427 if (global_interface_bitset && class->interface_id) {
2428 mono_loader_lock ();
2429 mono_bitset_clear (global_interface_bitset, class->interface_id);
2430 mono_loader_unlock ();
2435 * mono_get_unique_iid:
2438 * Assign a unique integer ID to the interface represented by @class.
2439 * The ID will positive and as small as possible.
2440 * LOCKING: this is supposed to be called with the loader lock held.
2441 * Returns: the new ID.
2444 mono_get_unique_iid (MonoClass *class)
2448 g_assert (MONO_CLASS_IS_INTERFACE (class));
2450 if (!global_interface_bitset) {
2451 global_interface_bitset = mono_bitset_new (128, 0);
2454 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2456 int old_size = mono_bitset_size (global_interface_bitset);
2457 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2458 mono_bitset_free (global_interface_bitset);
2459 global_interface_bitset = new_set;
2462 mono_bitset_set (global_interface_bitset, iid);
2463 /* set the bit also in the per-image set */
2464 if (!class->generic_class) {
2465 if (class->image->interface_bitset) {
2466 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2467 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2468 mono_bitset_free (class->image->interface_bitset);
2469 class->image->interface_bitset = new_set;
2472 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2474 mono_bitset_set (class->image->interface_bitset, iid);
2477 #ifndef MONO_SMALL_CONFIG
2478 if (mono_print_vtable) {
2480 char *type_name = mono_type_full_name (&class->byval_arg);
2481 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2482 generic_id = class->generic_class->context.class_inst->id;
2483 g_assert (generic_id != 0);
2487 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2492 g_assert (iid <= 65535);
2497 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res, MonoError *error)
2502 mono_class_setup_interfaces (klass, error);
2503 if (!mono_error_ok (error))
2506 for (i = 0; i < klass->interface_count; i++) {
2507 ic = klass->interfaces [i];
2510 *res = g_ptr_array_new ();
2511 g_ptr_array_add (*res, ic);
2512 mono_class_init (ic);
2513 if (ic->exception_type) {
2514 mono_error_set_type_load_class (error, ic, "Error Loading class");
2518 collect_implemented_interfaces_aux (ic, res, error);
2519 if (!mono_error_ok (error))
2525 mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error)
2527 GPtrArray *res = NULL;
2529 collect_implemented_interfaces_aux (klass, &res, error);
2530 if (!mono_error_ok (error)) {
2532 g_ptr_array_free (res, TRUE);
2539 compare_interface_ids (const void *p_key, const void *p_element) {
2540 const MonoClass *key = p_key;
2541 const MonoClass *element = *(MonoClass**) p_element;
2543 return (key->interface_id - element->interface_id);
2546 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2548 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2549 MonoClass **result = bsearch (
2551 klass->interfaces_packed,
2552 klass->interface_offsets_count,
2553 sizeof (MonoClass *),
2554 compare_interface_ids);
2556 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2563 * mono_class_interface_offset_with_variance:
2565 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2566 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2568 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2570 * FIXME figure out MS disambiguation rules and fix this function.
2573 mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match) {
2574 int i = mono_class_interface_offset (klass, itf);
2575 *non_exact_match = FALSE;
2579 if (!mono_class_has_variant_generic_params (itf))
2582 for (i = 0; i < klass->interface_offsets_count; i++) {
2583 if (mono_class_is_variant_compatible (itf, klass->interfaces_packed [i], FALSE)) {
2584 *non_exact_match = TRUE;
2585 return klass->interface_offsets_packed [i];
2593 print_implemented_interfaces (MonoClass *klass) {
2596 GPtrArray *ifaces = NULL;
2598 int ancestor_level = 0;
2600 name = mono_type_get_full_name (klass);
2601 printf ("Packed interface table for class %s has size %d\n", name, klass->interface_offsets_count);
2604 for (i = 0; i < klass->interface_offsets_count; i++)
2605 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2606 klass->interfaces_packed [i]->interface_id,
2607 klass->interface_offsets_packed [i],
2608 klass->interfaces_packed [i]->method.count,
2609 klass->interfaces_packed [i]->name_space,
2610 klass->interfaces_packed [i]->name );
2611 printf ("Interface flags: ");
2612 for (i = 0; i <= klass->max_interface_id; i++)
2613 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2614 printf ("(%d,T)", i);
2616 printf ("(%d,F)", i);
2618 printf ("Dump interface flags:");
2619 #ifdef COMPRESSED_INTERFACE_BITMAP
2621 const uint8_t* p = klass->interface_bitmap;
2622 i = klass->max_interface_id;
2624 printf (" %d x 00 %02X", p [0], p [1]);
2630 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2631 printf (" %02X", klass->interface_bitmap [i]);
2634 while (klass != NULL) {
2635 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2636 ifaces = mono_class_get_implemented_interfaces (klass, &error);
2637 if (!mono_error_ok (&error)) {
2638 printf (" Type failed due to %s\n", mono_error_get_message (&error));
2639 mono_error_cleanup (&error);
2640 } else if (ifaces) {
2641 for (i = 0; i < ifaces->len; i++) {
2642 MonoClass *ic = g_ptr_array_index (ifaces, i);
2643 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2644 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2646 mono_class_interface_offset (klass, ic),
2651 g_ptr_array_free (ifaces, TRUE);
2654 klass = klass->parent;
2659 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2662 args [0] = &arg0->byval_arg;
2664 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2668 array_class_get_if_rank (MonoClass *class, guint rank)
2670 return rank ? mono_array_class_get (class, rank) : class;
2674 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2676 valuetype_types [0] = eclass;
2677 if (eclass == mono_defaults.int16_class)
2678 valuetype_types [1] = mono_defaults.uint16_class;
2679 else if (eclass == mono_defaults.uint16_class)
2680 valuetype_types [1] = mono_defaults.int16_class;
2681 else if (eclass == mono_defaults.int32_class)
2682 valuetype_types [1] = mono_defaults.uint32_class;
2683 else if (eclass == mono_defaults.uint32_class)
2684 valuetype_types [1] = mono_defaults.int32_class;
2685 else if (eclass == mono_defaults.int64_class)
2686 valuetype_types [1] = mono_defaults.uint64_class;
2687 else if (eclass == mono_defaults.uint64_class)
2688 valuetype_types [1] = mono_defaults.int64_class;
2689 else if (eclass == mono_defaults.byte_class)
2690 valuetype_types [1] = mono_defaults.sbyte_class;
2691 else if (eclass == mono_defaults.sbyte_class)
2692 valuetype_types [1] = mono_defaults.byte_class;
2693 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2694 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2697 /* this won't be needed once bug #325495 is completely fixed
2698 * though we'll need something similar to know which interfaces to allow
2699 * in arrays when they'll be lazyly created
2701 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2702 * MS returns diferrent types based on which instance is called. For example:
2703 * object obj = new byte[10][];
2704 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2705 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2708 * Fixing this should kill quite some code, save some bits and improve compatibility.
2711 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2713 MonoClass *eclass = class->element_class;
2714 static MonoClass* generic_icollection_class = NULL;
2715 static MonoClass* generic_ienumerable_class = NULL;
2716 static MonoClass* generic_ienumerator_class = NULL;
2717 MonoClass *valuetype_types[2] = { NULL, NULL };
2718 MonoClass **interfaces = NULL;
2719 int i, interface_count, real_count, original_rank;
2721 gboolean internal_enumerator;
2722 gboolean eclass_is_valuetype;
2724 if (!mono_defaults.generic_ilist_class) {
2728 internal_enumerator = FALSE;
2729 eclass_is_valuetype = FALSE;
2730 original_rank = eclass->rank;
2731 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2732 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2734 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2736 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2737 original_rank = eclass->rank;
2739 eclass = eclass->element_class;
2740 internal_enumerator = TRUE;
2741 *is_enumerator = TRUE;
2749 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2750 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2752 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2754 if (!generic_icollection_class) {
2755 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2756 "System.Collections.Generic", "ICollection`1");
2757 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2758 "System.Collections.Generic", "IEnumerable`1");
2759 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2760 "System.Collections.Generic", "IEnumerator`1");
2763 mono_class_init (eclass);
2766 * Arrays in 2.0 need to implement a number of generic interfaces
2767 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2768 * on the element class). We collect the types needed to build the
2769 * instantiations in interfaces at intervals of 3, because 3 are
2770 * the generic interfaces needed to implement.
2772 if (eclass->valuetype) {
2773 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2775 /* IList, ICollection, IEnumerable */
2776 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2777 if (internal_enumerator) {
2779 if (valuetype_types [1])
2783 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2784 interfaces [0] = valuetype_types [0];
2785 if (valuetype_types [1])
2786 interfaces [3] = valuetype_types [1];
2788 eclass_is_valuetype = TRUE;
2791 int idepth = eclass->idepth;
2792 if (!internal_enumerator)
2795 // FIXME: This doesn't seem to work/required for generic params
2796 if (!(eclass->this_arg.type == MONO_TYPE_VAR || eclass->this_arg.type == MONO_TYPE_MVAR || (eclass->image->dynamic && !eclass->wastypebuilder)))
2797 mono_class_setup_interface_offsets (eclass);
2799 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2800 /* we add object for interfaces and the supertypes for the other
2801 * types. The last of the supertypes is the element class itself which we
2802 * already created the explicit interfaces for (so we include it for IEnumerator
2803 * and exclude it for arrays).
2805 if (MONO_CLASS_IS_INTERFACE (eclass))
2808 interface_count += idepth;
2809 if (eclass->rank && eclass->element_class->valuetype) {
2810 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2811 if (valuetype_types [1])
2814 /* IList, ICollection, IEnumerable */
2815 interface_count *= 3;
2816 real_count = interface_count;
2817 if (internal_enumerator) {
2818 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2819 if (valuetype_types [1])
2822 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2823 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2824 interfaces [0] = mono_defaults.object_class;
2828 for (i = 0; i < idepth; i++) {
2829 mono_class_init (eclass->supertypes [i]);
2830 interfaces [j] = eclass->supertypes [i];
2834 if (all_interfaces) {
2835 for (i = 0; i < eclass->interface_offsets_count; i++) {
2836 interfaces [j] = eclass->interfaces_packed [i];
2840 for (i = 0; i < eclass->interface_count; i++) {
2841 interfaces [j] = eclass->interfaces [i];
2845 if (valuetype_types [1]) {
2846 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2851 /* instantiate the generic interfaces */
2852 for (i = 0; i < interface_count; i += 3) {
2853 MonoClass *iface = interfaces [i];
2855 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2856 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2857 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2859 if (internal_enumerator) {
2861 /* instantiate IEnumerator<iface> */
2862 for (i = 0; i < interface_count; i++) {
2863 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2865 j = interface_count;
2866 if (!eclass_is_valuetype) {
2867 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2868 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2871 for (i = 0; i < eclass->idepth; i++) {
2872 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2876 for (i = 0; i < eclass->interface_offsets_count; i++) {
2877 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2881 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2883 if (valuetype_types [1])
2884 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2888 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2889 for (i = 0; i < real_count; ++i) {
2890 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2891 g_print ("%s implements %s\n", type_name, name);
2902 find_array_interface (MonoClass *klass, const char *name)
2905 for (i = 0; i < klass->interface_count; ++i) {
2906 if (strcmp (klass->interfaces [i]->name, name) == 0)
2913 * Return the number of virtual methods.
2914 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2915 * Return -1 on failure.
2916 * FIXME It would be nice if this information could be cached somewhere.
2919 count_virtual_methods (MonoClass *class)
2923 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2925 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2926 mono_class_setup_methods (class);
2927 if (class->exception_type)
2930 for (i = 0; i < class->method.count; ++i) {
2931 flags = class->methods [i]->flags;
2932 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2936 for (i = 0; i < class->method.count; ++i) {
2937 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2939 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2947 find_interface (int num_ifaces, MonoClass **interfaces_full, MonoClass *ic)
2955 m = (l + num_ifaces) / 2;
2956 if (interfaces_full [m] == ic)
2958 if (l == num_ifaces)
2960 if (!interfaces_full [m] || interfaces_full [m]->interface_id > ic->interface_id) {
2969 find_interface_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic)
2971 int i = find_interface (num_ifaces, interfaces_full, ic);
2973 return interface_offsets_full [i];
2978 set_interface_and_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic, int offset, mono_bool force_set)
2980 int i = find_interface (num_ifaces, interfaces_full, ic);
2984 interface_offsets_full [i] = offset;
2987 for (i = 0; i < num_ifaces; ++i) {
2988 if (interfaces_full [i]) {
2990 if (interfaces_full [i]->interface_id < ic->interface_id)
2993 while (end < num_ifaces && interfaces_full [end]) end++;
2994 memmove (interfaces_full + i + 1, interfaces_full + i, sizeof (MonoClass*) * (end - i));
2995 memmove (interface_offsets_full + i + 1, interface_offsets_full + i, sizeof (int) * (end - i));
2997 interfaces_full [i] = ic;
2998 interface_offsets_full [i] = offset;
3004 #ifdef COMPRESSED_INTERFACE_BITMAP
3007 * Compressed interface bitmap design.
3009 * Interface bitmaps take a large amount of memory, because their size is
3010 * linear with the maximum interface id assigned in the process (each interface
3011 * is assigned a unique id as it is loaded). The number of interface classes
3012 * is high because of the many implicit interfaces implemented by arrays (we'll
3013 * need to lazy-load them in the future).
3014 * Most classes implement a very small number of interfaces, so the bitmap is
3015 * sparse. This bitmap needs to be checked by interface casts, so access to the
3016 * needed bit must be fast and doable with few jit instructions.
3018 * The current compression format is as follows:
3019 * *) it is a sequence of one or more two-byte elements
3020 * *) the first byte in the element is the count of empty bitmap bytes
3021 * at the current bitmap position
3022 * *) the second byte in the element is an actual bitmap byte at the current
3025 * As an example, the following compressed bitmap bytes:
3026 * 0x07 0x01 0x00 0x7
3027 * correspond to the following bitmap:
3028 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
3030 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
3031 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
3032 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
3036 * mono_compress_bitmap:
3037 * @dest: destination buffer
3038 * @bitmap: bitmap buffer
3039 * @size: size of @bitmap in bytes
3041 * This is a mono internal function.
3042 * The @bitmap data is compressed into a format that is small but
3043 * still searchable in few instructions by the JIT and runtime.
3044 * The compressed data is stored in the buffer pointed to by the
3045 * @dest array. Passing a #NULL value for @dest allows to just compute
3046 * the size of the buffer.
3047 * This compression algorithm assumes the bits set in the bitmap are
3048 * few and far between, like in interface bitmaps.
3049 * Returns: the size of the compressed bitmap in bytes.
3052 mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size)
3056 const uint8_t *end = bitmap + size;
3057 while (bitmap < end) {
3058 if (*bitmap || numz == 255) {
3082 * mono_class_interface_match:
3083 * @bitmap: a compressed bitmap buffer
3084 * @id: the index to check in the bitmap
3086 * This is a mono internal function.
3087 * Checks if a bit is set in a compressed interface bitmap. @id must
3088 * be already checked for being smaller than the maximum id encoded in the
3091 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
3095 mono_class_interface_match (const uint8_t *bitmap, int id)
3098 id -= bitmap [0] * 8;
3102 return bitmap [1] & (1 << id);
3111 * LOCKING: this is supposed to be called with the loader lock held.
3112 * Return -1 on failure and set exception_type
3115 setup_interface_offsets (MonoClass *class, int cur_slot, gboolean overwrite)
3119 int i, j, max_iid, num_ifaces;
3120 MonoClass **interfaces_full = NULL;
3121 int *interface_offsets_full = NULL;
3123 GPtrArray **ifaces_array = NULL;
3124 int interface_offsets_count;
3125 MonoClass **array_interfaces = NULL;
3126 int num_array_interfaces;
3127 int is_enumerator = FALSE;
3129 mono_class_setup_supertypes (class);
3131 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
3132 * implicit interfaces have the property that they are assigned the same slot in the
3133 * vtables for compatible interfaces
3135 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
3137 /* compute maximum number of slots and maximum interface id */
3139 num_ifaces = num_array_interfaces; /* this can include duplicated ones */
3140 ifaces_array = g_new0 (GPtrArray *, class->idepth);
3141 for (j = 0; j < class->idepth; j++) {
3142 k = class->supertypes [j];
3143 num_ifaces += k->interface_count;
3144 for (i = 0; i < k->interface_count; i++) {
3145 ic = k->interfaces [i];
3148 mono_class_init (ic);
3150 if (max_iid < ic->interface_id)
3151 max_iid = ic->interface_id;
3153 ifaces = mono_class_get_implemented_interfaces (k, &error);
3154 if (!mono_error_ok (&error)) {
3155 char *name = mono_type_get_full_name (k);
3156 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)));
3158 mono_error_cleanup (&error);
3163 num_ifaces += ifaces->len;
3164 for (i = 0; i < ifaces->len; ++i) {
3165 ic = g_ptr_array_index (ifaces, i);
3166 if (max_iid < ic->interface_id)
3167 max_iid = ic->interface_id;
3169 ifaces_array [j] = ifaces;
3173 for (i = 0; i < num_array_interfaces; ++i) {
3174 ic = array_interfaces [i];
3175 mono_class_init (ic);
3176 if (max_iid < ic->interface_id)
3177 max_iid = ic->interface_id;
3180 if (MONO_CLASS_IS_INTERFACE (class)) {
3182 if (max_iid < class->interface_id)
3183 max_iid = class->interface_id;
3185 class->max_interface_id = max_iid;
3186 /* compute vtable offset for interfaces */
3187 interfaces_full = g_malloc0 (sizeof (MonoClass*) * num_ifaces);
3188 interface_offsets_full = g_malloc (sizeof (int) * num_ifaces);
3190 for (i = 0; i < num_ifaces; i++) {
3191 interface_offsets_full [i] = -1;
3194 /* skip the current class */
3195 for (j = 0; j < class->idepth - 1; j++) {
3196 k = class->supertypes [j];
3197 ifaces = ifaces_array [j];
3200 for (i = 0; i < ifaces->len; ++i) {
3202 ic = g_ptr_array_index (ifaces, i);
3204 /*Force the sharing of interface offsets between parent and subtypes.*/
3205 io = mono_class_interface_offset (k, ic);
3207 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, io, TRUE);
3212 g_assert (class == class->supertypes [class->idepth - 1]);
3213 ifaces = ifaces_array [class->idepth - 1];
3215 for (i = 0; i < ifaces->len; ++i) {
3217 ic = g_ptr_array_index (ifaces, i);
3218 if (set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, cur_slot, FALSE))
3220 count = count_virtual_methods (ic);
3222 char *name = mono_type_get_full_name (ic);
3223 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error calculating interface offset of %s", name));
3232 if (MONO_CLASS_IS_INTERFACE (class))
3233 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, class, cur_slot, TRUE);
3235 if (num_array_interfaces) {
3236 if (is_enumerator) {
3237 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
3238 int ienumerator_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ienumerator_idx]);
3239 g_assert (ienumerator_offset >= 0);
3240 for (i = 0; i < num_array_interfaces; ++i) {
3241 ic = array_interfaces [i];
3242 if (strcmp (ic->name, "IEnumerator`1") == 0)
3243 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, ienumerator_offset, TRUE);
3245 g_assert_not_reached ();
3246 /*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);*/
3249 int ilist_offset, icollection_offset, ienumerable_offset;
3250 int ilist_iface_idx = find_array_interface (class, "IList`1");
3251 MonoClass* ilist_class = class->interfaces [ilist_iface_idx];
3252 int icollection_iface_idx = find_array_interface (ilist_class, "ICollection`1");
3253 int ienumerable_iface_idx = find_array_interface (ilist_class, "IEnumerable`1");
3254 ilist_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ilist_iface_idx]);
3255 icollection_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [icollection_iface_idx]);
3256 ienumerable_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [ienumerable_iface_idx]);
3257 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
3258 for (i = 0; i < num_array_interfaces; ++i) {
3260 ic = array_interfaces [i];
3261 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
3262 offset = ilist_offset;
3263 else if (strcmp (ic->name, "ICollection`1") == 0)
3264 offset = icollection_offset;
3265 else if (strcmp (ic->name, "IEnumerable`1") == 0)
3266 offset = ienumerable_offset;
3268 g_assert_not_reached ();
3269 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, offset, TRUE);
3270 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3275 for (interface_offsets_count = 0, i = 0; i < num_ifaces; i++) {
3276 if (interface_offsets_full [i] != -1) {
3277 interface_offsets_count ++;
3282 * We might get called multiple times:
3283 * - mono_class_init ()
3284 * - mono_class_setup_vtable ().
3285 * - mono_class_setup_interface_offsets ().
3286 * mono_class_setup_interface_offsets () passes 0 as CUR_SLOT, so the computed interface offsets will be invalid. This
3287 * means we have to overwrite those when called from other places (#4440).
3289 if (class->interfaces_packed && !overwrite) {
3290 g_assert (class->interface_offsets_count == interface_offsets_count);
3294 class->interface_offsets_count = interface_offsets_count;
3295 class->interfaces_packed = mono_class_alloc (class, sizeof (MonoClass*) * interface_offsets_count);
3296 class->interface_offsets_packed = mono_class_alloc (class, sizeof (guint16) * interface_offsets_count);
3297 bsize = (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0);
3298 #ifdef COMPRESSED_INTERFACE_BITMAP
3299 bitmap = g_malloc0 (bsize);
3301 bitmap = mono_class_alloc0 (class, bsize);
3303 for (i = 0; i < interface_offsets_count; i++) {
3304 int id = interfaces_full [i]->interface_id;
3305 bitmap [id >> 3] |= (1 << (id & 7));
3306 class->interfaces_packed [i] = interfaces_full [i];
3307 class->interface_offsets_packed [i] = interface_offsets_full [i];
3308 /*if (num_array_interfaces)
3309 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]);*/
3311 #ifdef COMPRESSED_INTERFACE_BITMAP
3312 i = mono_compress_bitmap (NULL, bitmap, bsize);
3313 class->interface_bitmap = mono_class_alloc0 (class, i);
3314 mono_compress_bitmap (class->interface_bitmap, bitmap, bsize);
3317 class->interface_bitmap = bitmap;
3322 g_free (interfaces_full);
3323 g_free (interface_offsets_full);
3324 g_free (array_interfaces);
3325 for (i = 0; i < class->idepth; i++) {
3326 ifaces = ifaces_array [i];
3328 g_ptr_array_free (ifaces, TRUE);
3330 g_free (ifaces_array);
3332 //printf ("JUST DONE: ");
3333 //print_implemented_interfaces (class);
3339 * Setup interface offsets for interfaces.
3341 * - class->max_interface_id
3342 * - class->interface_offsets_count
3343 * - class->interfaces_packed
3344 * - class->interface_offsets_packed
3345 * - class->interface_bitmap
3347 * This function can fail @class.
3350 mono_class_setup_interface_offsets (MonoClass *class)
3352 mono_loader_lock ();
3354 setup_interface_offsets (class, 0, FALSE);
3356 mono_loader_unlock ();
3359 /*Checks if @klass has @parent as one of it's parents type gtd
3363 * Bar<T> : Foo<Bar<Bar<T>>>
3367 mono_class_has_gtd_parent (MonoClass *klass, MonoClass *parent)
3369 klass = mono_class_get_generic_type_definition (klass);
3370 parent = mono_class_get_generic_type_definition (parent);
3371 mono_class_setup_supertypes (klass);
3372 mono_class_setup_supertypes (parent);
3374 return klass->idepth >= parent->idepth &&
3375 mono_class_get_generic_type_definition (klass->supertypes [parent->idepth - 1]) == parent;
3379 mono_class_check_vtable_constraints (MonoClass *class, GList *in_setup)
3381 MonoGenericInst *ginst;
3383 if (!class->generic_class) {
3384 mono_class_setup_vtable_full (class, in_setup);
3385 return class->exception_type == 0;
3388 mono_class_setup_vtable_full (mono_class_get_generic_type_definition (class), in_setup);
3389 if (class->generic_class->container_class->exception_type) {
3390 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to load generic definition vtable"));
3394 ginst = class->generic_class->context.class_inst;
3395 for (i = 0; i < ginst->type_argc; ++i) {
3397 if (ginst->type_argv [i]->type != MONO_TYPE_GENERICINST)
3399 arg = mono_class_from_mono_type (ginst->type_argv [i]);
3400 /*Those 2 will be checked by mono_class_setup_vtable itself*/
3401 if (mono_class_has_gtd_parent (class, arg) || mono_class_has_gtd_parent (arg, class))
3403 if (!mono_class_check_vtable_constraints (arg, in_setup)) {
3404 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Failed to load generic parameter %d", i));
3412 * mono_class_setup_vtable:
3414 * Creates the generic vtable of CLASS.
3415 * Initializes the following fields in MonoClass:
3418 * Plus all the fields initialized by setup_interface_offsets ().
3419 * If there is an error during vtable construction, class->exception_type is set.
3421 * LOCKING: Acquires the loader lock.
3424 mono_class_setup_vtable (MonoClass *class)
3426 mono_class_setup_vtable_full (class, NULL);
3430 mono_class_setup_vtable_full (MonoClass *class, GList *in_setup)
3432 MonoMethod **overrides;
3433 MonoGenericContext *context;
3441 if (mono_debug_using_mono_debugger ())
3442 /* The debugger currently depends on this */
3443 mono_class_setup_methods (class);
3445 if (MONO_CLASS_IS_INTERFACE (class)) {
3446 /* This sets method->slot for all methods if this is an interface */
3447 mono_class_setup_methods (class);
3451 if (class->exception_type)
3454 if (g_list_find (in_setup, class))
3457 mono_loader_lock ();
3459 if (class->vtable) {
3460 mono_loader_unlock ();
3464 mono_stats.generic_vtable_count ++;
3465 in_setup = g_list_prepend (in_setup, class);
3467 if (class->generic_class) {
3468 if (!mono_class_check_vtable_constraints (class, in_setup)) {
3469 mono_loader_unlock ();
3470 g_list_remove (in_setup, class);
3474 context = mono_class_get_context (class);
3475 type_token = class->generic_class->container_class->type_token;
3477 context = (MonoGenericContext *) class->generic_container;
3478 type_token = class->type_token;
3481 if (class->image->dynamic) {
3482 /* Generic instances can have zero method overrides without causing any harm.
3483 * This is true since we don't do layout all over again for them, we simply inflate
3484 * the layout of the parent.
3486 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
3488 /* The following call fails if there are missing methods in the type */
3489 /* FIXME it's probably a good idea to avoid this for generic instances. */
3490 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
3494 mono_class_setup_vtable_general (class, overrides, onum, in_setup);
3496 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load list of method overrides"));
3500 mono_loader_unlock ();
3501 g_list_remove (in_setup, class);
3506 #define DEBUG_INTERFACE_VTABLE_CODE 0
3507 #define TRACE_INTERFACE_VTABLE_CODE 0
3508 #define VERIFY_INTERFACE_VTABLE_CODE 0
3509 #define VTABLE_SELECTOR (1)
3511 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3512 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3513 if (!(VTABLE_SELECTOR)) break; \
3517 #define DEBUG_INTERFACE_VTABLE(stmt)
3520 #if TRACE_INTERFACE_VTABLE_CODE
3521 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3522 if (!(VTABLE_SELECTOR)) break; \
3526 #define TRACE_INTERFACE_VTABLE(stmt)
3529 #if VERIFY_INTERFACE_VTABLE_CODE
3530 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3531 if (!(VTABLE_SELECTOR)) break; \
3535 #define VERIFY_INTERFACE_VTABLE(stmt)
3539 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3541 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
3545 GString *res = g_string_new ("");
3547 g_string_append_c (res, '(');
3548 for (i = 0; i < sig->param_count; ++i) {
3550 g_string_append_c (res, ',');
3551 mono_type_get_desc (res, sig->params [i], include_namespace);
3553 g_string_append (res, ")=>");
3554 if (sig->ret != NULL) {
3555 mono_type_get_desc (res, sig->ret, include_namespace);
3557 g_string_append (res, "NULL");
3560 g_string_free (res, FALSE);
3564 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
3565 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
3566 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
3567 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
3575 is_wcf_hack_disabled (void)
3577 static gboolean disabled;
3578 static gboolean inited = FALSE;
3580 disabled = g_getenv ("MONO_DISABLE_WCF_HACK") != NULL;
3587 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) {
3588 MonoMethodSignature *cmsig, *imsig;
3589 if (strcmp (im->name, cm->name) == 0) {
3590 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
3591 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3594 if (! slot_is_empty) {
3595 if (require_newslot) {
3596 if (! interface_is_explicitly_implemented_by_class) {
3597 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3600 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3601 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3605 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3608 cmsig = mono_method_signature (cm);
3609 imsig = mono_method_signature (im);
3610 if (!cmsig || !imsig) {
3611 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3615 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3616 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3617 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3618 TRACE_INTERFACE_VTABLE (printf ("]"));
3621 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3622 /* CAS - SecurityAction.InheritanceDemand on interface */
3623 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3624 mono_secman_inheritancedemand_method (cm, im);
3627 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3628 mono_security_core_clr_check_override (class, cm, im);
3629 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3630 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, im, NULL)) {
3631 char *body_name = mono_method_full_name (cm, TRUE);
3632 char *decl_name = mono_method_full_name (im, TRUE);
3633 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));
3641 MonoClass *ic = im->klass;
3642 const char *ic_name_space = ic->name_space;
3643 const char *ic_name = ic->name;
3646 if (! require_newslot) {
3647 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3650 if (cm->klass->rank == 0) {
3651 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3654 cmsig = mono_method_signature (cm);
3655 imsig = mono_method_signature (im);
3656 if (!cmsig || !imsig) {
3657 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3661 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3662 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
3663 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3664 TRACE_INTERFACE_VTABLE (printf ("]"));
3667 if (mono_class_get_image (ic) != mono_defaults.corlib) {
3668 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
3671 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
3672 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
3675 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
3676 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
3680 subname = strstr (cm->name, ic_name_space);
3681 if (subname != cm->name) {
3682 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
3685 subname += strlen (ic_name_space);
3686 if (subname [0] != '.') {
3687 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
3691 if (strstr (subname, ic_name) != subname) {
3692 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
3695 subname += strlen (ic_name);
3696 if (subname [0] != '.') {
3697 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
3701 if (strcmp (subname, im->name) != 0) {
3702 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3706 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3707 /* CAS - SecurityAction.InheritanceDemand on interface */
3708 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3709 mono_secman_inheritancedemand_method (cm, im);
3712 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3713 mono_security_core_clr_check_override (class, cm, im);
3715 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3716 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, im, NULL)) {
3717 char *body_name = mono_method_full_name (cm, TRUE);
3718 char *decl_name = mono_method_full_name (im, TRUE);
3719 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));
3729 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3731 foreach_override (gpointer key, gpointer value, gpointer user_data) {
3732 MonoMethod *method = key;
3733 MonoMethod *override = value;
3734 MonoClass *method_class = mono_method_get_class (method);
3735 MonoClass *override_class = mono_method_get_class (override);
3737 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3738 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
3739 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
3742 print_overrides (GHashTable *override_map, const char *message) {
3744 printf ("Override map \"%s\" START:\n", message);
3745 g_hash_table_foreach (override_map, foreach_override, NULL);
3746 printf ("Override map \"%s\" END.\n", message);
3748 printf ("Override map \"%s\" EMPTY.\n", message);
3752 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
3753 char *full_name = mono_type_full_name (&class->byval_arg);
3757 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
3759 if (print_interfaces) {
3760 print_implemented_interfaces (class);
3761 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3764 if (class->parent) {
3765 parent_size = class->parent->vtable_size;
3769 for (i = 0; i < size; ++i) {
3770 MonoMethod *cm = vtable [i];
3771 char *cm_name = cm ? mono_method_full_name (cm, TRUE) : g_strdup ("nil");
3772 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3774 printf (" [%c][%03d][INDEX %03d] %s [%p]\n", newness, i, cm ? cm->slot : - 1, cm_name, cm);
3782 #if VERIFY_INTERFACE_VTABLE_CODE
3784 mono_method_try_get_vtable_index (MonoMethod *method)
3786 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3787 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3788 if (imethod->declaring->is_generic)
3789 return imethod->declaring->slot;
3791 return method->slot;
3795 mono_class_verify_vtable (MonoClass *class)
3798 char *full_name = mono_type_full_name (&class->byval_arg);
3800 printf ("*** Verifying VTable of class '%s' \n", full_name);
3804 if (!class->methods)
3807 for (i = 0; i < class->method.count; ++i) {
3808 MonoMethod *cm = class->methods [i];
3811 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3815 full_name = mono_method_full_name (cm, TRUE);
3817 slot = mono_method_try_get_vtable_index (cm);
3819 if (slot >= class->vtable_size) {
3820 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3824 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3825 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3826 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3827 g_free (other_name);
3830 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3837 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3839 char *method_signature;
3842 for (index = 0; index < onum; ++index) {
3843 mono_trace_warning (MONO_TRACE_TYPE, " at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3844 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3846 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3847 type_name = mono_type_full_name (&class->byval_arg);
3848 mono_trace_warning (MONO_TRACE_TYPE, "no implementation for interface method %s::%s(%s) in class %s\n",
3849 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3850 g_free (method_signature);
3852 mono_class_setup_methods (class);
3853 if (class->exception_type) {
3854 char *name = mono_type_get_full_name (class);
3855 mono_trace_warning (MONO_TRACE_TYPE, "CLASS %s failed to resolve methods\n", name);
3859 for (index = 0; index < class->method.count; ++index) {
3860 MonoMethod *cm = class->methods [index];
3861 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3863 mono_trace_warning (MONO_TRACE_TYPE, "METHOD %s(%s)\n", cm->name, method_signature);
3864 g_free (method_signature);
3869 mono_method_get_method_definition (MonoMethod *method)
3871 while (method->is_inflated)
3872 method = ((MonoMethodInflated*)method)->declaring;
3877 verify_class_overrides (MonoClass *class, MonoMethod **overrides, int onum)
3881 for (i = 0; i < onum; ++i) {
3882 MonoMethod *decl = overrides [i * 2];
3883 MonoMethod *body = overrides [i * 2 + 1];
3885 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3886 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3890 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3891 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3892 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3894 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3898 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3899 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3900 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3902 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3906 if (!mono_class_is_assignable_from_slow (decl->klass, class)) {
3907 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3911 body = mono_method_get_method_definition (body);
3912 decl = mono_method_get_method_definition (decl);
3914 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (body, decl, NULL)) {
3915 char *body_name = mono_method_full_name (body, TRUE);
3916 char *decl_name = mono_method_full_name (decl, TRUE);
3917 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));
3927 mono_class_need_stelemref_method (MonoClass *class)
3929 return class->rank == 1 && MONO_TYPE_IS_REFERENCE (&class->element_class->byval_arg);
3933 * LOCKING: this is supposed to be called with the loader lock held.
3936 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum, GList *in_setup)
3940 MonoMethod **vtable;
3941 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3942 GPtrArray *ifaces = NULL;
3943 GHashTable *override_map = NULL;
3944 gboolean security_enabled = mono_is_security_manager_active ();
3946 gpointer class_iter;
3947 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3948 int first_non_interface_slot;
3950 GSList *virt_methods = NULL, *l;
3951 int stelemref_slot = 0;
3956 if (overrides && !verify_class_overrides (class, overrides, onum))
3959 ifaces = mono_class_get_implemented_interfaces (class, &error);
3960 if (!mono_error_ok (&error)) {
3961 char *name = mono_type_get_full_name (class);
3962 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)));
3964 mono_error_cleanup (&error);
3966 } else if (ifaces) {
3967 for (i = 0; i < ifaces->len; i++) {
3968 MonoClass *ic = g_ptr_array_index (ifaces, i);
3969 max_vtsize += ic->method.count;
3971 g_ptr_array_free (ifaces, TRUE);
3975 if (class->parent) {
3976 mono_class_init (class->parent);
3977 mono_class_setup_vtable_full (class->parent, in_setup);
3979 if (class->parent->exception_type) {
3980 char *name = mono_type_get_full_name (class->parent);
3981 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Parent %s failed to load", name));
3986 max_vtsize += class->parent->vtable_size;
3987 cur_slot = class->parent->vtable_size;
3990 max_vtsize += class->method.count;
3992 /*Array have a slot for stelemref*/
3993 if (mono_class_need_stelemref_method (class)) {
3994 stelemref_slot = cur_slot;
3999 vtable = alloca (sizeof (gpointer) * max_vtsize);
4000 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
4002 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
4004 cur_slot = setup_interface_offsets (class, cur_slot, TRUE);
4005 if (cur_slot == -1) /*setup_interface_offsets fails the type.*/
4008 max_iid = class->max_interface_id;
4009 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
4011 /* Optimized version for generic instances */
4012 if (class->generic_class) {
4014 MonoClass *gklass = class->generic_class->container_class;
4017 mono_class_setup_vtable_full (gklass, in_setup);
4018 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
4019 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4023 tmp = mono_class_alloc0 (class, sizeof (gpointer) * gklass->vtable_size);
4024 class->vtable_size = gklass->vtable_size;
4025 for (i = 0; i < gklass->vtable_size; ++i)
4026 if (gklass->vtable [i]) {
4027 MonoMethod *inflated = mono_class_inflate_generic_method_full_checked (gklass->vtable [i], class, mono_class_get_context (class), &error);
4028 if (!mono_error_ok (&error)) {
4029 char *err_msg = g_strdup_printf ("Could not inflate method due to %s", mono_error_get_message (&error));
4030 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
4032 mono_error_cleanup (&error);
4036 tmp [i]->slot = gklass->vtable [i]->slot;
4038 mono_memory_barrier ();
4039 class->vtable = tmp;
4041 /* Have to set method->slot for abstract virtual methods */
4042 if (class->methods && gklass->methods) {
4043 for (i = 0; i < class->method.count; ++i)
4044 if (class->methods [i]->slot == -1)
4045 class->methods [i]->slot = gklass->methods [i]->slot;
4051 if (class->parent && class->parent->vtable_size) {
4052 MonoClass *parent = class->parent;
4055 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
4057 // Also inherit parent interface vtables, just as a starting point.
4058 // This is needed otherwise bug-77127.exe fails when the property methods
4059 // have different names in the iterface and the class, because for child
4060 // classes the ".override" information is not used anymore.
4061 for (i = 0; i < parent->interface_offsets_count; i++) {
4062 MonoClass *parent_interface = parent->interfaces_packed [i];
4063 int interface_offset = mono_class_interface_offset (class, parent_interface);
4064 /*FIXME this is now dead code as this condition will never hold true.
4065 Since interface offsets are inherited then the offset of an interface implemented
4066 by a parent will never be the out of it's vtable boundary.
4068 if (interface_offset >= parent->vtable_size) {
4069 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
4072 mono_class_setup_methods (parent_interface); /*FIXME Just kill this whole chunk of dead code*/
4073 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
4074 for (j = 0; j < parent_interface->method.count && !class->exception_type; j++) {
4075 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
4076 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
4077 parent_interface_offset + j, parent_interface_offset, j,
4078 interface_offset + j, interface_offset, j));
4085 /*Array have a slot for stelemref*/
4086 if (mono_class_need_stelemref_method (class)) {
4087 MonoMethod *method = mono_marshal_get_virtual_stelemref (class);
4089 method->slot = stelemref_slot;
4091 g_assert (method->slot == stelemref_slot);
4093 vtable [stelemref_slot] = method;
4096 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
4097 /* override interface methods */
4098 for (i = 0; i < onum; i++) {
4099 MonoMethod *decl = overrides [i*2];
4100 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
4102 dslot = mono_method_get_vtable_slot (decl);
4104 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4108 dslot += mono_class_interface_offset (class, decl->klass);
4109 vtable [dslot] = overrides [i*2 + 1];
4110 vtable [dslot]->slot = dslot;
4112 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4114 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
4116 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4117 mono_security_core_clr_check_override (class, vtable [dslot], decl);
4120 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
4121 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
4124 * Create a list of virtual methods to avoid calling
4125 * mono_class_get_virtual_methods () which is slow because of the metadata
4129 gpointer iter = NULL;
4132 virt_methods = NULL;
4133 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
4134 virt_methods = g_slist_prepend (virt_methods, cm);
4136 if (class->exception_type)
4140 // Loop on all implemented interfaces...
4141 for (i = 0; i < class->interface_offsets_count; i++) {
4142 MonoClass *parent = class->parent;
4144 gboolean interface_is_explicitly_implemented_by_class;
4147 ic = class->interfaces_packed [i];
4148 ic_offset = mono_class_interface_offset (class, ic);
4150 mono_class_setup_methods (ic);
4151 if (ic->exception_type)
4154 // Check if this interface is explicitly implemented (instead of just inherited)
4155 if (parent != NULL) {
4156 int implemented_interfaces_index;
4157 interface_is_explicitly_implemented_by_class = FALSE;
4158 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
4159 if (ic == class->interfaces [implemented_interfaces_index]) {
4160 interface_is_explicitly_implemented_by_class = TRUE;
4165 interface_is_explicitly_implemented_by_class = TRUE;
4168 // Loop on all interface methods...
4169 for (im_index = 0; im_index < ic->method.count; im_index++) {
4170 MonoMethod *im = ic->methods [im_index];
4171 int im_slot = ic_offset + im->slot;
4172 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
4174 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4177 TRACE_INTERFACE_VTABLE (printf ("\tchecking iface method %s\n", mono_method_full_name (im,1)));
4179 // If there is an explicit implementation, just use it right away,
4180 // otherwise look for a matching method
4181 if (override_im == NULL) {
4186 // First look for a suitable method among the class methods
4188 for (l = virt_methods; l; l = l->next) {
4190 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)));
4191 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
4192 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
4193 vtable [im_slot] = cm;
4194 /* Why do we need this? */
4199 TRACE_INTERFACE_VTABLE (printf ("\n"));
4200 if (class->exception_type) /*Might be set by check_interface_method_override*/
4204 // If the slot is still empty, look in all the inherited virtual methods...
4205 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
4206 MonoClass *parent = class->parent;
4207 // Reverse order, so that last added methods are preferred
4208 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
4209 MonoMethod *cm = parent->vtable [cm_index];
4211 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));
4212 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
4213 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
4214 vtable [im_slot] = cm;
4215 /* Why do we need this? */
4221 if (class->exception_type) /*Might be set by check_interface_method_override*/
4223 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
4227 g_assert (vtable [im_slot] == override_im);
4232 // If the class is not abstract, check that all its interface slots are full.
4233 // The check is done here and not directly at the end of the loop above because
4234 // it can happen (for injected generic array interfaces) that the same slot is
4235 // processed multiple times (those interfaces have overlapping slots), and it
4236 // will not always be the first pass the one that fills the slot.
4237 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4238 for (i = 0; i < class->interface_offsets_count; i++) {
4242 ic = class->interfaces_packed [i];
4243 ic_offset = mono_class_interface_offset (class, ic);
4245 for (im_index = 0; im_index < ic->method.count; im_index++) {
4246 MonoMethod *im = ic->methods [im_index];
4247 int im_slot = ic_offset + im->slot;
4249 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4252 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
4253 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
4254 if (vtable [im_slot] == NULL) {
4255 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
4262 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
4264 for (l = virt_methods; l; l = l->next) {
4267 * If the method is REUSE_SLOT, we must check in the
4268 * base class for a method to override.
4270 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
4272 for (k = class->parent; k ; k = k->parent) {
4277 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
4278 MonoMethodSignature *cmsig, *m1sig;
4280 cmsig = mono_method_signature (cm);
4281 m1sig = mono_method_signature (m1);
4283 if (!cmsig || !m1sig) {
4284 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4288 if (!strcmp(cm->name, m1->name) &&
4289 mono_metadata_signature_equal (cmsig, m1sig)) {
4291 /* CAS - SecurityAction.InheritanceDemand */
4292 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
4293 mono_secman_inheritancedemand_method (cm, m1);
4296 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4297 mono_security_core_clr_check_override (class, cm, m1);
4299 slot = mono_method_get_vtable_slot (m1);
4303 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, m1, NULL)) {
4304 char *body_name = mono_method_full_name (cm, TRUE);
4305 char *decl_name = mono_method_full_name (m1, TRUE);
4306 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));
4312 g_assert (cm->slot < max_vtsize);
4314 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4315 TRACE_INTERFACE_VTABLE (printf ("adding iface override from %s [%p] to %s [%p]\n",
4316 mono_method_full_name (m1, 1), m1,
4317 mono_method_full_name (cm, 1), cm));
4318 g_hash_table_insert (override_map, m1, cm);
4322 if (k->exception_type)
4332 /*Non final newslot methods must be given a non-interface vtable slot*/
4333 if ((cm->flags & METHOD_ATTRIBUTE_NEW_SLOT) && !(cm->flags & METHOD_ATTRIBUTE_FINAL) && cm->slot >= 0)
4337 cm->slot = cur_slot++;
4339 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
4340 vtable [cm->slot] = cm;
4343 /* override non interface methods */
4344 for (i = 0; i < onum; i++) {
4345 MonoMethod *decl = overrides [i*2];
4346 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
4347 g_assert (decl->slot != -1);
4348 vtable [decl->slot] = overrides [i*2 + 1];
4349 overrides [i * 2 + 1]->slot = decl->slot;
4351 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4352 TRACE_INTERFACE_VTABLE (printf ("adding explicit override from %s [%p] to %s [%p]\n",
4353 mono_method_full_name (decl, 1), decl,
4354 mono_method_full_name (overrides [i * 2 + 1], 1), overrides [i * 2 + 1]));
4355 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
4357 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4358 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
4363 * If a method occupies more than one place in the vtable, and it is
4364 * overriden, then change the other occurances too.
4369 for (i = 0; i < max_vtsize; ++i)
4371 TRACE_INTERFACE_VTABLE (printf ("checking slot %d method %s[%p] for overrides\n", i, mono_method_full_name (vtable [i], 1), vtable [i]));
4373 cm = g_hash_table_lookup (override_map, vtable [i]);
4378 g_hash_table_destroy (override_map);
4379 override_map = NULL;
4382 g_slist_free (virt_methods);
4383 virt_methods = NULL;
4385 /* Ensure that all vtable slots are filled with concrete instance methods */
4386 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4387 for (i = 0; i < cur_slot; ++i) {
4388 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
4389 char *type_name = mono_type_get_full_name (class);
4390 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
4391 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));
4393 g_free (method_name);
4399 if (class->generic_class) {
4400 MonoClass *gklass = class->generic_class->container_class;
4402 mono_class_init (gklass);
4404 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
4406 /* Check that the vtable_size value computed in mono_class_init () is correct */
4407 if (class->vtable_size)
4408 g_assert (cur_slot == class->vtable_size);
4409 class->vtable_size = cur_slot;
4412 /* Try to share the vtable with our parent. */
4413 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
4414 mono_memory_barrier ();
4415 class->vtable = class->parent->vtable;
4417 MonoMethod **tmp = mono_class_alloc0 (class, sizeof (gpointer) * class->vtable_size);
4418 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
4419 mono_memory_barrier ();
4420 class->vtable = tmp;
4423 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
4424 if (mono_print_vtable) {
4427 print_implemented_interfaces (class);
4429 for (i = 0; i <= max_iid; i++)
4430 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
4433 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
4434 class->vtable_size, icount);
4436 for (i = 0; i < cur_slot; ++i) {
4441 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
4442 mono_method_full_name (cm, TRUE));
4448 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
4449 class->name, max_iid);
4451 for (i = 0; i < class->interface_count; i++) {
4452 ic = class->interfaces [i];
4453 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
4454 mono_class_interface_offset (class, ic),
4455 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4458 for (k = class->parent; k ; k = k->parent) {
4459 for (i = 0; i < k->interface_count; i++) {
4460 ic = k->interfaces [i];
4461 printf (" parent slot offset: %03d, method count: %03d, iid: %03d %s\n",
4462 mono_class_interface_offset (class, ic),
4463 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4469 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
4474 char *name = mono_type_get_full_name (class);
4475 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("VTable setup of type %s failed", name));
4478 g_hash_table_destroy (override_map);
4480 g_slist_free (virt_methods);
4485 * mono_method_get_vtable_slot:
4487 * Returns method->slot, computing it if neccesary. Return -1 on failure.
4488 * LOCKING: Acquires the loader lock.
4490 * FIXME Use proper MonoError machinery here.
4493 mono_method_get_vtable_slot (MonoMethod *method)
4495 if (method->slot == -1) {
4496 mono_class_setup_vtable (method->klass);
4497 if (method->klass->exception_type)
4499 g_assert (method->slot != -1);
4501 return method->slot;
4505 * mono_method_get_vtable_index:
4508 * Returns the index into the runtime vtable to access the method or,
4509 * in the case of a virtual generic method, the virtual generic method
4510 * thunk. Returns -1 on failure.
4512 * FIXME Use proper MonoError machinery here.
4515 mono_method_get_vtable_index (MonoMethod *method)
4517 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
4518 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4519 if (imethod->declaring->is_generic)
4520 return mono_method_get_vtable_slot (imethod->declaring);
4522 return mono_method_get_vtable_slot (method);
4525 static MonoMethod *default_ghc = NULL;
4526 static MonoMethod *default_finalize = NULL;
4527 static int finalize_slot = -1;
4528 static int ghc_slot = -1;
4531 initialize_object_slots (MonoClass *class)
4536 if (class == mono_defaults.object_class) {
4537 mono_class_setup_vtable (class);
4538 for (i = 0; i < class->vtable_size; ++i) {
4539 MonoMethod *cm = class->vtable [i];
4541 if (!strcmp (cm->name, "GetHashCode"))
4543 else if (!strcmp (cm->name, "Finalize"))
4547 g_assert (ghc_slot > 0);
4548 default_ghc = class->vtable [ghc_slot];
4550 g_assert (finalize_slot > 0);
4551 default_finalize = class->vtable [finalize_slot];
4556 MonoMethod *array_method;
4558 } GenericArrayMethodInfo;
4560 static int generic_array_method_num = 0;
4561 static GenericArrayMethodInfo *generic_array_method_info = NULL;
4564 generic_array_methods (MonoClass *class)
4566 int i, count_generic = 0;
4567 GList *list = NULL, *tmp;
4568 if (generic_array_method_num)
4569 return generic_array_method_num;
4570 mono_class_setup_methods (class->parent); /*This is setting up System.Array*/
4571 g_assert (!class->parent->exception_type); /*So hitting this assert is a huge problem*/
4572 for (i = 0; i < class->parent->method.count; i++) {
4573 MonoMethod *m = class->parent->methods [i];
4574 if (!strncmp (m->name, "InternalArray__", 15)) {
4576 list = g_list_prepend (list, m);
4579 list = g_list_reverse (list);
4580 generic_array_method_info = mono_image_alloc (mono_defaults.corlib, sizeof (GenericArrayMethodInfo) * count_generic);
4582 for (tmp = list; tmp; tmp = tmp->next) {
4583 const char *mname, *iname;
4585 MonoMethod *m = tmp->data;
4586 generic_array_method_info [i].array_method = m;
4587 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
4588 iname = "System.Collections.Generic.ICollection`1.";
4589 mname = m->name + 27;
4590 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
4591 iname = "System.Collections.Generic.IEnumerable`1.";
4592 mname = m->name + 27;
4593 } else if (!strncmp (m->name, "InternalArray__", 15)) {
4594 iname = "System.Collections.Generic.IList`1.";
4595 mname = m->name + 15;
4597 g_assert_not_reached ();
4600 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
4601 strcpy (name, iname);
4602 strcpy (name + strlen (iname), mname);
4603 generic_array_method_info [i].name = name;
4606 /*g_print ("array generic methods: %d\n", count_generic);*/
4608 generic_array_method_num = count_generic;
4610 return generic_array_method_num;
4614 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
4616 MonoGenericContext tmp_context;
4619 tmp_context.class_inst = NULL;
4620 tmp_context.method_inst = iface->generic_class->context.class_inst;
4621 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
4623 for (i = 0; i < generic_array_method_num; i++) {
4624 MonoMethod *m = generic_array_method_info [i].array_method;
4625 MonoMethod *inflated;
4627 inflated = mono_class_inflate_generic_method (m, &tmp_context);
4628 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
4633 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
4635 int null_length = strlen ("(null)");
4636 int len = (s1 ? strlen (s1) : null_length) + (s2 ? strlen (s2) : null_length) + 2;
4637 char *s = mono_image_alloc (image, len);
4640 result = g_snprintf (s, len, "%s%c%s", s1 ? s1 : "(null)", '\0', s2 ? s2 : "(null)");
4641 g_assert (result == len - 1);
4647 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
4649 gpointer exception_data = NULL;
4651 switch (error->exception_type) {
4652 case MONO_EXCEPTION_TYPE_LOAD:
4653 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
4656 case MONO_EXCEPTION_MISSING_METHOD:
4657 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
4660 case MONO_EXCEPTION_MISSING_FIELD: {
4661 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
4662 const char *class_name;
4665 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
4667 class_name = error->klass->name;
4669 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
4672 g_free ((void*)class_name);
4676 case MONO_EXCEPTION_FILE_NOT_FOUND: {
4679 if (error->ref_only)
4680 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.";
4682 msg = "Could not load file or assembly '%s' or one of its dependencies.";
4684 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
4688 case MONO_EXCEPTION_BAD_IMAGE:
4689 exception_data = error->msg;
4693 g_assert_not_reached ();
4696 mono_class_set_failure (class, error->exception_type, exception_data);
4701 * @class: the class to initialize
4703 * Compute the instance_size, class_size and other infos that cannot be
4704 * computed at mono_class_get() time. Also compute vtable_size if possible.
4705 * Returns TRUE on success or FALSE if there was a problem in loading
4706 * the type (incorrect assemblies, missing assemblies, methods, etc).
4708 * LOCKING: Acquires the loader lock.
4711 mono_class_init (MonoClass *class)
4714 MonoCachedClassInfo cached_info;
4715 gboolean has_cached_info;
4719 /* Double-checking locking pattern */
4720 if (class->inited || class->exception_type)
4721 return class->exception_type == MONO_EXCEPTION_NONE;
4723 /*g_print ("Init class %s\n", mono_type_get_full_name (class));*/
4725 /* We do everything inside the lock to prevent races */
4726 mono_loader_lock ();
4728 if (class->inited || class->exception_type) {
4729 mono_loader_unlock ();
4730 /* Somebody might have gotten in before us */
4731 return class->exception_type == MONO_EXCEPTION_NONE;
4734 if (class->init_pending) {
4735 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Recursive type definition detected"));
4739 class->init_pending = 1;
4741 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4742 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4747 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
4748 MonoClass *element_class = class->element_class;
4749 if (!element_class->inited)
4750 mono_class_init (element_class);
4751 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
4752 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4757 /* CAS - SecurityAction.InheritanceDemand */
4758 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
4759 mono_secman_inheritancedemand_class (class, class->parent);
4762 mono_stats.initialized_class_count++;
4764 if (class->generic_class && !class->generic_class->is_dynamic) {
4765 MonoClass *gklass = class->generic_class->container_class;
4767 mono_stats.generic_class_count++;
4769 class->method = gklass->method;
4770 class->field = gklass->field;
4772 mono_class_init (gklass);
4773 // FIXME: Why is this needed ?
4774 if (!gklass->exception_type)
4775 mono_class_setup_methods (gklass);
4776 if (gklass->exception_type) {
4777 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Generic Type Defintion failed to init"));
4781 if (MONO_CLASS_IS_INTERFACE (class))
4782 class->interface_id = mono_get_unique_iid (class);
4785 if (class->parent && !class->parent->inited)
4786 mono_class_init (class->parent);
4788 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
4790 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
4791 class->nested_classes_inited = TRUE;
4794 * Computes the size used by the fields, and their locations
4796 if (has_cached_info) {
4797 class->instance_size = cached_info.instance_size;
4798 class->sizes.class_size = cached_info.class_size;
4799 class->packing_size = cached_info.packing_size;
4800 class->min_align = cached_info.min_align;
4801 class->blittable = cached_info.blittable;
4802 class->has_references = cached_info.has_references;
4803 class->has_static_refs = cached_info.has_static_refs;
4804 class->no_special_static_fields = cached_info.no_special_static_fields;
4807 if (!class->size_inited){
4808 mono_class_setup_fields (class);
4809 if (class->exception_type || mono_loader_get_last_error ())
4813 /* Initialize arrays */
4815 class->method.count = 3 + (class->rank > 1? 2: 1);
4817 if (class->interface_count) {
4818 int count_generic = generic_array_methods (class);
4819 class->method.count += class->interface_count * count_generic;
4823 mono_class_setup_supertypes (class);
4826 initialize_object_slots (class);
4829 * Initialize the rest of the data without creating a generic vtable if possible.
4830 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
4831 * also avoid computing a generic vtable.
4833 if (has_cached_info) {
4835 class->vtable_size = cached_info.vtable_size;
4836 class->has_finalize = cached_info.has_finalize;
4837 class->has_finalize_inited = TRUE;
4838 class->ghcimpl = cached_info.ghcimpl;
4839 class->has_cctor = cached_info.has_cctor;
4840 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
4841 /* SZARRAY can have 2 vtable layouts, with and without the stelemref method.
4842 * The first slot if for array with.
4844 static int szarray_vtable_size[2] = { 0 };
4846 int slot = MONO_TYPE_IS_REFERENCE (&class->element_class->byval_arg) ? 0 : 1;
4849 if (!szarray_vtable_size [slot]) {
4850 mono_class_setup_vtable (class);
4851 szarray_vtable_size [slot] = class->vtable_size;
4853 class->vtable_size = szarray_vtable_size[slot];
4855 class->has_finalize_inited = TRUE;
4856 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
4857 MonoClass *gklass = class->generic_class->container_class;
4859 /* Generic instance case */
4860 class->ghcimpl = gklass->ghcimpl;
4861 class->has_finalize = mono_class_has_finalizer (gklass);
4862 class->has_finalize_inited = TRUE;
4863 class->has_cctor = gklass->has_cctor;
4865 mono_class_setup_vtable (gklass);
4866 if (gklass->exception_type) {
4867 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4871 class->vtable_size = gklass->vtable_size;
4875 /* ghcimpl is not currently used
4877 if (class->parent) {
4878 MonoMethod *cmethod = class->vtable [ghc_slot];
4879 if (cmethod->is_inflated)
4880 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4881 if (cmethod == default_ghc) {
4887 /* C# doesn't allow interfaces to have cctors */
4888 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4889 MonoMethod *cmethod = NULL;
4891 if (class->type_token) {
4892 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4893 /* The find_method function ignores the 'flags' argument */
4894 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4895 class->has_cctor = 1;
4897 mono_class_setup_methods (class);
4898 if (class->exception_type)
4901 for (i = 0; i < class->method.count; ++i) {
4902 MonoMethod *method = class->methods [i];
4903 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4904 (strcmp (".cctor", method->name) == 0)) {
4905 class->has_cctor = 1;
4913 if (class->parent) {
4914 int first_iface_slot;
4915 /* This will compute class->parent->vtable_size for some classes */
4916 mono_class_init (class->parent);
4917 if (class->parent->exception_type) {
4918 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4921 if (mono_loader_get_last_error ())
4923 if (!class->parent->vtable_size) {
4924 /* FIXME: Get rid of this somehow */
4925 mono_class_setup_vtable (class->parent);
4926 if (class->parent->exception_type) {
4927 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4930 if (mono_loader_get_last_error ())
4933 first_iface_slot = class->parent->vtable_size;
4934 if (mono_class_need_stelemref_method (class))
4936 setup_interface_offsets (class, first_iface_slot, TRUE);
4938 setup_interface_offsets (class, 0, TRUE);
4941 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4942 mono_security_core_clr_check_inheritance (class);
4944 if (mono_loader_get_last_error ()) {
4945 if (class->exception_type == MONO_EXCEPTION_NONE) {
4946 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4948 mono_loader_clear_error ();
4951 if (class->generic_class && !mono_verifier_class_is_valid_generic_instantiation (class))
4952 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Invalid generic instantiation"));
4957 /* Because of the double-checking locking pattern */
4958 mono_memory_barrier ();
4960 class->init_pending = 0;
4962 mono_loader_unlock ();
4964 if (mono_debugger_class_init_func)
4965 mono_debugger_class_init_func (class);
4967 return class->exception_type == MONO_EXCEPTION_NONE;
4971 * mono_class_has_finalizer:
4973 * Return whenever KLASS has a finalizer, initializing klass->has_finalizer in the
4977 mono_class_has_finalizer (MonoClass *klass)
4979 if (!klass->has_finalize_inited) {
4980 MonoClass *class = klass;
4982 mono_loader_lock ();
4984 /* Interfaces and valuetypes are not supposed to have finalizers */
4985 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
4986 MonoMethod *cmethod = NULL;
4988 if (class->parent && class->parent->has_finalize) {
4989 class->has_finalize = 1;
4991 if (class->parent) {
4993 * Can't search in metadata for a method named Finalize, because that
4994 * ignores overrides.
4996 mono_class_setup_vtable (class);
4997 if (class->exception_type || mono_loader_get_last_error ())
4999 cmethod = class->vtable [finalize_slot];
5003 g_assert (class->vtable_size > finalize_slot);
5005 class->has_finalize = 0;
5006 if (class->parent) {
5007 if (cmethod->is_inflated)
5008 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
5009 if (cmethod != default_finalize) {
5010 class->has_finalize = 1;
5017 mono_memory_barrier ();
5018 klass->has_finalize_inited = TRUE;
5020 mono_loader_unlock ();
5023 return klass->has_finalize;
5026 mono_loader_unlock ();
5031 mono_is_corlib_image (MonoImage *image)
5033 /* FIXME: allow the dynamic case for our compilers and with full trust */
5035 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
5037 return image == mono_defaults.corlib;
5041 * LOCKING: this assumes the loader lock is held
5044 mono_class_setup_mono_type (MonoClass *class)
5046 const char *name = class->name;
5047 const char *nspace = class->name_space;
5048 gboolean is_corlib = mono_is_corlib_image (class->image);
5050 class->this_arg.byref = 1;
5051 class->this_arg.data.klass = class;
5052 class->this_arg.type = MONO_TYPE_CLASS;
5053 class->byval_arg.data.klass = class;
5054 class->byval_arg.type = MONO_TYPE_CLASS;
5056 if (is_corlib && !strcmp (nspace, "System")) {
5057 if (!strcmp (name, "ValueType")) {
5059 * do not set the valuetype bit for System.ValueType.
5060 * class->valuetype = 1;
5062 class->blittable = TRUE;
5063 } else if (!strcmp (name, "Enum")) {
5065 * do not set the valuetype bit for System.Enum.
5066 * class->valuetype = 1;
5068 class->valuetype = 0;
5069 class->enumtype = 0;
5070 } else if (!strcmp (name, "Object")) {
5071 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
5072 } else if (!strcmp (name, "String")) {
5073 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
5074 } else if (!strcmp (name, "TypedReference")) {
5075 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
5079 if (class->valuetype) {
5080 int t = MONO_TYPE_VALUETYPE;
5082 if (is_corlib && !strcmp (nspace, "System")) {
5085 if (!strcmp (name, "Boolean")) {
5086 t = MONO_TYPE_BOOLEAN;
5087 } else if (!strcmp(name, "Byte")) {
5089 class->blittable = TRUE;
5093 if (!strcmp (name, "Char")) {
5098 if (!strcmp (name, "Double")) {
5100 class->blittable = TRUE;
5104 if (!strcmp (name, "Int32")) {
5106 class->blittable = TRUE;
5107 } else if (!strcmp(name, "Int16")) {
5109 class->blittable = TRUE;
5110 } else if (!strcmp(name, "Int64")) {
5112 class->blittable = TRUE;
5113 } else if (!strcmp(name, "IntPtr")) {
5115 class->blittable = TRUE;
5119 if (!strcmp (name, "Single")) {
5121 class->blittable = TRUE;
5122 } else if (!strcmp(name, "SByte")) {
5124 class->blittable = TRUE;
5128 if (!strcmp (name, "UInt32")) {
5130 class->blittable = TRUE;
5131 } else if (!strcmp(name, "UInt16")) {
5133 class->blittable = TRUE;
5134 } else if (!strcmp(name, "UInt64")) {
5136 class->blittable = TRUE;
5137 } else if (!strcmp(name, "UIntPtr")) {
5139 class->blittable = TRUE;
5143 if (!strcmp (name, "TypedReference")) {
5144 t = MONO_TYPE_TYPEDBYREF;
5145 class->blittable = TRUE;
5149 if (!strcmp (name, "Void")) {
5157 class->this_arg.type = class->byval_arg.type = t;
5160 if (MONO_CLASS_IS_INTERFACE (class))
5161 class->interface_id = mono_get_unique_iid (class);
5166 * COM initialization (using mono_init_com_types) is delayed until needed.
5167 * However when a [ComImport] attribute is present on a type it will trigger
5168 * the initialization. This is not a problem unless the BCL being executed
5169 * lacks the types that COM depends on (e.g. Variant on Silverlight).
5172 init_com_from_comimport (MonoClass *class)
5174 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
5175 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)) {
5176 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
5177 if (!mono_security_core_clr_determine_platform_image (class->image)) {
5178 /* but it can not be made available for application (i.e. user code) since all COM calls
5179 * are considered native calls. In this case we fail with a TypeLoadException (just like
5180 * Silverlight 2 does */
5181 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5185 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
5186 mono_init_com_types ();
5190 * LOCKING: this assumes the loader lock is held
5193 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
5195 gboolean system_namespace;
5196 gboolean is_corlib = mono_is_corlib_image (class->image);
5198 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
5200 /* if root of the hierarchy */
5201 if (system_namespace && !strcmp (class->name, "Object")) {
5202 class->parent = NULL;
5203 class->instance_size = sizeof (MonoObject);
5206 if (!strcmp (class->name, "<Module>")) {
5207 class->parent = NULL;
5208 class->instance_size = 0;
5212 if (!MONO_CLASS_IS_INTERFACE (class)) {
5213 /* Imported COM Objects always derive from __ComObject. */
5214 if (MONO_CLASS_IS_IMPORT (class)) {
5215 init_com_from_comimport (class);
5216 if (parent == mono_defaults.object_class)
5217 parent = mono_defaults.com_object_class;
5220 /* set the parent to something useful and safe, but mark the type as broken */
5221 parent = mono_defaults.object_class;
5222 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5225 class->parent = parent;
5227 if (parent->generic_class && !parent->name) {
5229 * If the parent is a generic instance, we may get
5230 * called before it is fully initialized, especially
5231 * before it has its name.
5236 class->marshalbyref = parent->marshalbyref;
5237 class->contextbound = parent->contextbound;
5238 class->delegate = parent->delegate;
5239 if (MONO_CLASS_IS_IMPORT (class))
5240 class->is_com_object = 1;
5242 class->is_com_object = parent->is_com_object;
5244 if (system_namespace) {
5245 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
5246 class->marshalbyref = 1;
5248 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
5249 class->contextbound = 1;
5251 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
5252 class->delegate = 1;
5255 if (class->parent->enumtype || (mono_is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
5256 (strcmp (class->parent->name_space, "System") == 0)))
5257 class->valuetype = 1;
5258 if (mono_is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
5259 class->valuetype = class->enumtype = 1;
5261 /*class->enumtype = class->parent->enumtype; */
5263 /* initialize com types if COM interfaces are present */
5264 if (MONO_CLASS_IS_IMPORT (class))
5265 init_com_from_comimport (class);
5266 class->parent = NULL;
5272 * mono_class_setup_supertypes:
5275 * Build the data structure needed to make fast type checks work.
5276 * This currently sets two fields in @class:
5277 * - idepth: distance between @class and System.Object in the type
5279 * - supertypes: array of classes: each element has a class in the hierarchy
5280 * starting from @class up to System.Object
5282 * LOCKING: this assumes the loader lock is held
5285 mono_class_setup_supertypes (MonoClass *class)
5288 MonoClass **supertypes;
5290 if (class->supertypes)
5293 if (class->parent && !class->parent->supertypes)
5294 mono_class_setup_supertypes (class->parent);
5296 class->idepth = class->parent->idepth + 1;
5300 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
5301 supertypes = mono_class_alloc0 (class, sizeof (MonoClass *) * ms);
5303 if (class->parent) {
5304 supertypes [class->idepth - 1] = class;
5305 memcpy (supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
5307 supertypes [0] = class;
5310 mono_atomic_store_release (&class->supertypes, supertypes);
5314 * mono_class_create_from_typedef:
5315 * @image: image where the token is valid
5316 * @type_token: typedef token
5318 * Create the MonoClass* representing the specified type token.
5319 * @type_token must be a TypeDef token.
5321 * FIXME: don't return NULL on failure, just the the caller figure it out.
5324 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
5326 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5327 MonoClass *class, *parent = NULL;
5328 guint32 cols [MONO_TYPEDEF_SIZE];
5329 guint32 cols_next [MONO_TYPEDEF_SIZE];
5330 guint tidx = mono_metadata_token_index (type_token);
5331 MonoGenericContext *context = NULL;
5332 const char *name, *nspace;
5334 MonoClass **interfaces;
5335 guint32 field_last, method_last;
5336 guint32 nesting_tokeen;
5338 if (mono_metadata_token_table (type_token) != MONO_TABLE_TYPEDEF || tidx > tt->rows)
5341 mono_loader_lock ();
5343 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
5344 mono_loader_unlock ();
5348 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5350 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5351 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5353 class = mono_image_alloc0 (image, sizeof (MonoClass));
5356 class->name_space = nspace;
5358 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5360 class->image = image;
5361 class->type_token = type_token;
5362 class->flags = cols [MONO_TYPEDEF_FLAGS];
5364 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
5366 classes_size += sizeof (MonoClass);
5369 * Check whether we're a generic type definition.
5371 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
5372 if (class->generic_container) {
5373 class->is_generic = 1;
5374 class->generic_container->owner.klass = class;
5375 context = &class->generic_container->context;
5378 if (cols [MONO_TYPEDEF_EXTENDS]) {
5380 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
5382 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
5383 /*WARNING: this must satisfy mono_metadata_type_hash*/
5384 class->this_arg.byref = 1;
5385 class->this_arg.data.klass = class;
5386 class->this_arg.type = MONO_TYPE_CLASS;
5387 class->byval_arg.data.klass = class;
5388 class->byval_arg.type = MONO_TYPE_CLASS;
5390 parent = mono_class_get_full (image, parent_token, context);
5392 if (parent == NULL){
5393 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load parent type"));
5394 mono_loader_clear_error ();
5395 goto parent_failure;
5398 for (tmp = parent; tmp; tmp = tmp->parent) {
5400 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cycle found while resolving parent"));
5401 goto parent_failure;
5403 if (class->generic_container && tmp->generic_class && tmp->generic_class->container_class == class) {
5404 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Parent extends generic instance of this type"));
5405 goto parent_failure;
5410 mono_class_setup_parent (class, parent);
5412 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5413 mono_class_setup_mono_type (class);
5416 * This might access class->byval_arg for recursion generated by generic constraints,
5417 * so it has to come after setup_mono_type ().
5419 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token))) {
5420 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
5421 if (!class->nested_in) {
5422 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load nestedin type"));
5423 mono_loader_unlock ();
5424 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5429 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
5433 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
5437 class->cast_class = class->element_class = class;
5439 if (!class->enumtype) {
5440 if (!mono_metadata_interfaces_from_typedef_full (
5441 image, type_token, &interfaces, &icount, FALSE, context)){
5442 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load interfaces"));
5443 mono_loader_unlock ();
5444 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5448 class->interfaces = interfaces;
5449 class->interface_count = icount;
5450 class->interfaces_inited = 1;
5453 /*g_print ("Load class %s\n", name);*/
5456 * Compute the field and method lists
5458 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
5459 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
5461 if (tt->rows > tidx){
5462 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
5463 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
5464 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
5466 field_last = image->tables [MONO_TABLE_FIELD].rows;
5467 method_last = image->tables [MONO_TABLE_METHOD].rows;
5470 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
5471 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
5472 class->field.count = field_last - class->field.first;
5474 class->field.count = 0;
5476 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
5477 class->method.count = method_last - class->method.first;
5479 class->method.count = 0;
5481 /* reserve space to store vector pointer in arrays */
5482 if (mono_is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
5483 class->instance_size += 2 * sizeof (gpointer);
5484 g_assert (class->field.count == 0);
5487 if (class->enumtype) {
5488 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
5489 if (!enum_basetype) {
5490 /*set it to a default value as the whole runtime can't handle this to be null*/
5491 class->cast_class = class->element_class = mono_defaults.int32_class;
5492 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5493 mono_loader_unlock ();
5494 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5497 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
5501 * If we're a generic type definition, load the constraints.
5502 * We must do this after the class has been constructed to make certain recursive scenarios
5505 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
5506 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
5507 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
5508 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
5509 g_free (class_name);
5510 mono_loader_unlock ();
5511 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5515 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
5516 if (!strncmp (name, "Vector", 6))
5517 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");
5520 mono_loader_unlock ();
5522 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5527 mono_class_setup_mono_type (class);
5528 mono_loader_unlock ();
5529 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5534 /** is klass Nullable<T>? */
5536 mono_class_is_nullable (MonoClass *klass)
5538 return klass->generic_class != NULL &&
5539 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
5543 /** if klass is T? return T */
5545 mono_class_get_nullable_param (MonoClass *klass)
5547 g_assert (mono_class_is_nullable (klass));
5548 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
5552 * Create the `MonoClass' for an instantiation of a generic type.
5553 * We only do this if we actually need it.
5556 mono_generic_class_get_class (MonoGenericClass *gclass)
5558 MonoClass *klass, *gklass;
5560 if (gclass->cached_class)
5561 return gclass->cached_class;
5563 mono_loader_lock ();
5564 if (gclass->cached_class) {
5565 mono_loader_unlock ();
5566 return gclass->cached_class;
5569 klass = mono_image_set_alloc0 (gclass->owner, sizeof (MonoClass));
5571 gklass = gclass->container_class;
5573 if (gklass->nested_in) {
5574 /* The nested_in type should not be inflated since it's possible to produce a nested type with less generic arguments*/
5575 klass->nested_in = gklass->nested_in;
5578 klass->name = gklass->name;
5579 klass->name_space = gklass->name_space;
5581 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5583 klass->image = gklass->image;
5584 klass->flags = gklass->flags;
5585 klass->type_token = gklass->type_token;
5586 klass->field.count = gklass->field.count;
5588 klass->is_inflated = 1;
5589 klass->generic_class = gclass;
5591 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
5592 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
5593 klass->this_arg.byref = TRUE;
5594 klass->enumtype = gklass->enumtype;
5595 klass->valuetype = gklass->valuetype;
5597 klass->cast_class = klass->element_class = klass;
5599 if (mono_class_is_nullable (klass))
5600 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
5603 * We're not interested in the nested classes of a generic instance.
5604 * We use the generic type definition to look for nested classes.
5607 if (gklass->parent) {
5609 klass->parent = mono_class_inflate_generic_class_checked (gklass->parent, mono_generic_class_get_context (gclass), &error);
5610 if (!mono_error_ok (&error)) {
5611 /*Set parent to something safe as the runtime doesn't handle well this kind of failure.*/
5612 klass->parent = mono_defaults.object_class;
5613 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
5614 mono_error_cleanup (&error);
5619 mono_class_setup_parent (klass, klass->parent);
5621 if (klass->enumtype) {
5622 klass->cast_class = gklass->cast_class;
5623 klass->element_class = gklass->element_class;
5626 if (gclass->is_dynamic) {
5629 mono_class_setup_supertypes (klass);
5631 if (klass->enumtype) {
5633 * For enums, gklass->fields might not been set, but instance_size etc. is
5634 * already set in mono_reflection_create_internal_class (). For non-enums,
5635 * these will be computed normally in mono_class_layout_fields ().
5637 klass->instance_size = gklass->instance_size;
5638 klass->sizes.class_size = gklass->sizes.class_size;
5639 klass->size_inited = 1;
5643 mono_memory_barrier ();
5644 gclass->cached_class = klass;
5646 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5648 inflated_classes ++;
5649 inflated_classes_size += sizeof (MonoClass);
5651 mono_loader_unlock ();
5657 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
5659 MonoClass *klass, **ptr;
5661 MonoGenericContainer *container = mono_generic_param_owner (param);
5665 image = mono_defaults.corlib;
5667 klass = mono_image_alloc0 (image, sizeof (MonoClass));
5668 classes_size += sizeof (MonoClass);
5671 klass->name = pinfo->name;
5673 int n = mono_generic_param_num (param);
5674 klass->name = mono_image_alloc0 (image, 16);
5675 sprintf ((char*)klass->name, "%d", n);
5680 MonoMethod *omethod = container->owner.method;
5681 klass->name_space = (omethod && omethod->klass) ? omethod->klass->name_space : "";
5683 MonoClass *oklass = container->owner.klass;
5684 klass->name_space = oklass ? oklass->name_space : "";
5687 klass->name_space = "";
5690 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5694 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
5698 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
5699 klass->parent = pinfo->constraints [0];
5701 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
5702 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
5704 klass->parent = mono_defaults.object_class;
5707 if (count - pos > 0) {
5708 klass->interface_count = count - pos;
5709 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
5710 klass->interfaces_inited = TRUE;
5711 for (i = pos; i < count; i++)
5712 klass->interfaces [i - pos] = pinfo->constraints [i];
5715 klass->image = image;
5717 klass->inited = TRUE;
5718 klass->cast_class = klass->element_class = klass;
5719 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
5721 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5722 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
5723 klass->this_arg.byref = TRUE;
5725 /* We don't use type_token for VAR since only classes can use it (not arrays, pointer, VARs, etc) */
5726 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
5728 /*Init these fields to sane values*/
5729 klass->min_align = 1;
5730 klass->instance_size = sizeof (gpointer);
5731 klass->size_inited = 1;
5733 mono_class_setup_supertypes (klass);
5735 if (count - pos > 0) {
5736 mono_class_setup_vtable (klass->parent);
5737 if (klass->parent->exception_type)
5738 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to setup parent interfaces"));
5740 setup_interface_offsets (klass, klass->parent->vtable_size, TRUE);
5746 #define FAST_CACHE_SIZE 16
5749 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
5751 int n = mono_generic_param_num (param);
5752 MonoImage *image = param->image;
5757 if (n < FAST_CACHE_SIZE) {
5759 return image->mvar_cache_fast ? image->mvar_cache_fast [n] : NULL;
5761 return image->var_cache_fast ? image->var_cache_fast [n] : NULL;
5763 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5764 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
5769 * LOCKING: Acquires the loader lock.
5772 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
5774 int n = mono_generic_param_num (param);
5775 MonoImage *image = param->image;
5780 if (n < FAST_CACHE_SIZE) {
5782 /* No locking needed */
5783 if (!image->mvar_cache_fast)
5784 image->mvar_cache_fast = mono_image_alloc0 (image, sizeof (MonoClass*) * FAST_CACHE_SIZE);
5785 image->mvar_cache_fast [n] = klass;
5787 if (!image->var_cache_fast)
5788 image->var_cache_fast = mono_image_alloc0 (image, sizeof (MonoClass*) * FAST_CACHE_SIZE);
5789 image->var_cache_fast [n] = klass;
5793 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5795 mono_loader_lock ();
5796 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5798 ht = g_hash_table_new (NULL, NULL);
5799 mono_memory_barrier ();
5801 image->mvar_cache_slow = ht;
5803 image->var_cache_slow = ht;
5805 mono_loader_unlock ();
5808 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
5812 * LOCKING: Acquires the loader lock.
5815 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
5817 MonoGenericContainer *container = mono_generic_param_owner (param);
5818 MonoGenericParamInfo *pinfo;
5821 mono_loader_lock ();
5824 pinfo = mono_generic_param_info (param);
5825 if (pinfo->pklass) {
5826 mono_loader_unlock ();
5827 return pinfo->pklass;
5833 klass = get_anon_gparam_class (param, is_mvar);
5835 mono_loader_unlock ();
5840 if (!image && container) {
5842 MonoMethod *method = container->owner.method;
5843 image = (method && method->klass) ? method->klass->image : NULL;
5845 MonoClass *klass = container->owner.klass;
5846 // FIXME: 'klass' should not be null
5847 // But, monodis creates GenericContainers without associating a owner to it
5848 image = klass ? klass->image : NULL;
5852 klass = make_generic_param_class (param, image, is_mvar, pinfo);
5854 mono_memory_barrier ();
5857 pinfo->pklass = klass;
5859 set_anon_gparam_class (param, is_mvar, klass);
5861 mono_loader_unlock ();
5863 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5864 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5870 mono_ptr_class_get (MonoType *type)
5873 MonoClass *el_class;
5877 el_class = mono_class_from_mono_type (type);
5878 image = el_class->image;
5880 mono_loader_lock ();
5882 if (!image->ptr_cache)
5883 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5885 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
5886 mono_loader_unlock ();
5889 result = mono_image_alloc0 (image, sizeof (MonoClass));
5891 classes_size += sizeof (MonoClass);
5893 result->parent = NULL; /* no parent for PTR types */
5894 result->name_space = el_class->name_space;
5895 name = g_strdup_printf ("%s*", el_class->name);
5896 result->name = mono_image_strdup (image, name);
5899 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5901 result->image = el_class->image;
5902 result->inited = TRUE;
5903 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5904 /* Can pointers get boxed? */
5905 result->instance_size = sizeof (gpointer);
5906 result->cast_class = result->element_class = el_class;
5907 result->blittable = TRUE;
5909 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
5910 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
5911 result->this_arg.byref = TRUE;
5913 mono_class_setup_supertypes (result);
5915 g_hash_table_insert (image->ptr_cache, el_class, result);
5917 mono_loader_unlock ();
5919 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5925 mono_fnptr_class_get (MonoMethodSignature *sig)
5928 static GHashTable *ptr_hash = NULL;
5930 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5932 mono_loader_lock ();
5935 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5937 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
5938 mono_loader_unlock ();
5941 result = g_new0 (MonoClass, 1);
5943 result->parent = NULL; /* no parent for PTR types */
5944 result->name_space = "System";
5945 result->name = "MonoFNPtrFakeClass";
5947 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5949 result->image = mono_defaults.corlib; /* need to fix... */
5950 result->inited = TRUE;
5951 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5952 /* Can pointers get boxed? */
5953 result->instance_size = sizeof (gpointer);
5954 result->cast_class = result->element_class = result;
5955 result->blittable = TRUE;
5957 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
5958 result->this_arg.data.method = result->byval_arg.data.method = sig;
5959 result->this_arg.byref = TRUE;
5960 result->blittable = TRUE;
5962 mono_class_setup_supertypes (result);
5964 g_hash_table_insert (ptr_hash, sig, result);
5966 mono_loader_unlock ();
5968 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5974 mono_class_from_mono_type (MonoType *type)
5976 switch (type->type) {
5977 case MONO_TYPE_OBJECT:
5978 return type->data.klass? type->data.klass: mono_defaults.object_class;
5979 case MONO_TYPE_VOID:
5980 return type->data.klass? type->data.klass: mono_defaults.void_class;
5981 case MONO_TYPE_BOOLEAN:
5982 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
5983 case MONO_TYPE_CHAR:
5984 return type->data.klass? type->data.klass: mono_defaults.char_class;
5986 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
5988 return type->data.klass? type->data.klass: mono_defaults.byte_class;
5990 return type->data.klass? type->data.klass: mono_defaults.int16_class;
5992 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
5994 return type->data.klass? type->data.klass: mono_defaults.int32_class;
5996 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
5998 return type->data.klass? type->data.klass: mono_defaults.int_class;
6000 return type->data.klass? type->data.klass: mono_defaults.uint_class;
6002 return type->data.klass? type->data.klass: mono_defaults.int64_class;
6004 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
6006 return type->data.klass? type->data.klass: mono_defaults.single_class;
6008 return type->data.klass? type->data.klass: mono_defaults.double_class;
6009 case MONO_TYPE_STRING:
6010 return type->data.klass? type->data.klass: mono_defaults.string_class;
6011 case MONO_TYPE_TYPEDBYREF:
6012 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
6013 case MONO_TYPE_ARRAY:
6014 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
6016 return mono_ptr_class_get (type->data.type);
6017 case MONO_TYPE_FNPTR:
6018 return mono_fnptr_class_get (type->data.method);
6019 case MONO_TYPE_SZARRAY:
6020 return mono_array_class_get (type->data.klass, 1);
6021 case MONO_TYPE_CLASS:
6022 case MONO_TYPE_VALUETYPE:
6023 return type->data.klass;
6024 case MONO_TYPE_GENERICINST:
6025 return mono_generic_class_get_class (type->data.generic_class);
6027 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
6028 case MONO_TYPE_MVAR:
6029 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
6031 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
6032 g_assert_not_reached ();
6039 * mono_type_retrieve_from_typespec
6040 * @image: context where the image is created
6041 * @type_spec: typespec token
6042 * @context: the generic context used to evaluate generic instantiations in
6045 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate, MonoError *error)
6047 MonoType *t = mono_type_create_from_typespec (image, type_spec);
6049 mono_error_init (error);
6050 *did_inflate = FALSE;
6053 char *name = mono_class_name_from_token (image, type_spec);
6054 char *assembly = mono_assembly_name_from_token (image, type_spec);
6055 mono_error_set_type_load_name (error, name, assembly, "Could not resolve typespec token %08x", type_spec);
6059 if (context && (context->class_inst || context->method_inst)) {
6060 MonoType *inflated = inflate_generic_type (NULL, t, context, error);
6062 if (!mono_error_ok (error))
6067 *did_inflate = TRUE;
6074 * mono_class_create_from_typespec
6075 * @image: context where the image is created
6076 * @type_spec: typespec token
6077 * @context: the generic context used to evaluate generic instantiations in
6080 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, MonoError *error)
6083 gboolean inflated = FALSE;
6084 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated, error);
6085 if (!mono_error_ok (error))
6087 ret = mono_class_from_mono_type (t);
6089 mono_metadata_free_type (t);
6094 * mono_bounded_array_class_get:
6095 * @element_class: element class
6096 * @rank: the dimension of the array class
6097 * @bounded: whenever the array has non-zero bounds
6099 * Returns: a class object describing the array with element type @element_type and
6103 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
6107 MonoClass *parent = NULL;
6108 GSList *list, *rootlist = NULL;
6111 gboolean corlib_type = FALSE;
6113 g_assert (rank <= 255);
6116 /* bounded only matters for one-dimensional arrays */
6119 image = eclass->image;
6121 if (rank == 1 && !bounded) {
6123 * This case is very frequent not just during compilation because of calls
6124 * from mono_class_from_mono_type (), mono_array_new (),
6125 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
6127 EnterCriticalSection (&image->szarray_cache_lock);
6128 if (!image->szarray_cache)
6129 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
6130 class = g_hash_table_lookup (image->szarray_cache, eclass);
6131 LeaveCriticalSection (&image->szarray_cache_lock);
6135 mono_loader_lock ();
6137 mono_loader_lock ();
6139 if (!image->array_cache)
6140 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
6142 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
6143 for (; list; list = list->next) {
6145 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
6146 mono_loader_unlock ();
6153 /* for the building corlib use System.Array from it */
6154 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
6155 parent = mono_class_from_name (image, "System", "Array");
6158 parent = mono_defaults.array_class;
6159 if (!parent->inited)
6160 mono_class_init (parent);
6163 class = mono_image_alloc0 (image, sizeof (MonoClass));
6165 class->image = image;
6166 class->name_space = eclass->name_space;
6167 nsize = strlen (eclass->name);
6168 name = g_malloc (nsize + 2 + rank + 1);
6169 memcpy (name, eclass->name, nsize);
6172 memset (name + nsize + 1, ',', rank - 1);
6174 name [nsize + rank] = '*';
6175 name [nsize + rank + bounded] = ']';
6176 name [nsize + rank + bounded + 1] = 0;
6177 class->name = mono_image_strdup (image, name);
6180 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
6182 classes_size += sizeof (MonoClass);
6184 class->type_token = 0;
6185 /* all arrays are marked serializable and sealed, bug #42779 */
6186 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED | TYPE_ATTRIBUTE_PUBLIC;
6187 class->parent = parent;
6188 class->instance_size = mono_class_instance_size (class->parent);
6190 if (eclass->byval_arg.type == MONO_TYPE_TYPEDBYREF || eclass->byval_arg.type == MONO_TYPE_VOID) {
6191 /*Arrays of those two types are invalid.*/
6192 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6193 } else if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
6194 if (!eclass->ref_info_handle || eclass->wastypebuilder) {
6195 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
6196 g_assert (eclass->ref_info_handle && !eclass->wastypebuilder);
6198 /* element_size -1 is ok as this is not an instantitable type*/
6199 class->sizes.element_size = -1;
6201 class->sizes.element_size = mono_class_array_element_size (eclass);
6203 mono_class_setup_supertypes (class);
6205 if (eclass->generic_class)
6206 mono_class_init (eclass);
6207 if (!eclass->size_inited)
6208 mono_class_setup_fields (eclass);
6209 if (eclass->exception_type) /*FIXME we fail the array type, but we have to let other fields be set.*/
6210 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6212 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
6216 if (eclass->enumtype)
6217 class->cast_class = eclass->element_class;
6219 class->cast_class = eclass;
6221 switch (class->cast_class->byval_arg.type) {
6223 class->cast_class = mono_defaults.byte_class;
6226 class->cast_class = mono_defaults.int16_class;
6229 #if SIZEOF_VOID_P == 4
6233 class->cast_class = mono_defaults.int32_class;
6236 #if SIZEOF_VOID_P == 8
6240 class->cast_class = mono_defaults.int64_class;
6244 class->element_class = eclass;
6246 if ((rank > 1) || bounded) {
6247 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
6248 class->byval_arg.type = MONO_TYPE_ARRAY;
6249 class->byval_arg.data.array = at;
6250 at->eklass = eclass;
6252 /* FIXME: complete.... */
6254 class->byval_arg.type = MONO_TYPE_SZARRAY;
6255 class->byval_arg.data.klass = eclass;
6257 class->this_arg = class->byval_arg;
6258 class->this_arg.byref = 1;
6263 class->generic_container = eclass->generic_container;
6265 if (rank == 1 && !bounded) {
6266 MonoClass *prev_class;
6268 EnterCriticalSection (&image->szarray_cache_lock);
6269 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
6271 /* Someone got in before us */
6274 g_hash_table_insert (image->szarray_cache, eclass, class);
6275 LeaveCriticalSection (&image->szarray_cache_lock);
6277 list = g_slist_append (rootlist, class);
6278 g_hash_table_insert (image->array_cache, eclass, list);
6281 mono_loader_unlock ();
6283 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
6289 * mono_array_class_get:
6290 * @element_class: element class
6291 * @rank: the dimension of the array class
6293 * Returns: a class object describing the array with element type @element_type and
6297 mono_array_class_get (MonoClass *eclass, guint32 rank)
6299 return mono_bounded_array_class_get (eclass, rank, FALSE);
6303 * mono_class_instance_size:
6306 * Returns: the size of an object instance
6309 mono_class_instance_size (MonoClass *klass)
6311 if (!klass->size_inited)
6312 mono_class_init (klass);
6314 return klass->instance_size;
6318 * mono_class_min_align:
6321 * Returns: minimm alignment requirements
6324 mono_class_min_align (MonoClass *klass)
6326 if (!klass->size_inited)
6327 mono_class_init (klass);
6329 return klass->min_align;
6333 * mono_class_value_size:
6336 * This function is used for value types, and return the
6337 * space and the alignment to store that kind of value object.
6339 * Returns: the size of a value of kind @klass
6342 mono_class_value_size (MonoClass *klass, guint32 *align)
6346 /* fixme: check disable, because we still have external revereces to
6347 * mscorlib and Dummy Objects
6349 /*g_assert (klass->valuetype);*/
6351 size = mono_class_instance_size (klass) - sizeof (MonoObject);
6354 *align = klass->min_align;
6360 * mono_class_data_size:
6363 * Returns: the size of the static class data
6366 mono_class_data_size (MonoClass *klass)
6369 mono_class_init (klass);
6371 /* in arrays, sizes.class_size is unioned with element_size
6372 * and arrays have no static fields
6376 return klass->sizes.class_size;
6380 * Auxiliary routine to mono_class_get_field
6382 * Takes a field index instead of a field token.
6384 static MonoClassField *
6385 mono_class_get_field_idx (MonoClass *class, int idx)
6387 mono_class_setup_fields_locking (class);
6388 if (class->exception_type)
6392 if (class->image->uncompressed_metadata) {
6394 * class->field.first points to the FieldPtr table, while idx points into the
6395 * Field table, so we have to do a search.
6397 /*FIXME this is broken for types with multiple fields with the same name.*/
6398 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
6401 for (i = 0; i < class->field.count; ++i)
6402 if (mono_field_get_name (&class->fields [i]) == name)
6403 return &class->fields [i];
6404 g_assert_not_reached ();
6406 if (class->field.count) {
6407 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
6408 return &class->fields [idx - class->field.first];
6412 class = class->parent;
6418 * mono_class_get_field:
6419 * @class: the class to lookup the field.
6420 * @field_token: the field token
6422 * Returns: A MonoClassField representing the type and offset of
6423 * the field, or a NULL value if the field does not belong to this
6427 mono_class_get_field (MonoClass *class, guint32 field_token)
6429 int idx = mono_metadata_token_index (field_token);
6431 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
6433 return mono_class_get_field_idx (class, idx - 1);
6437 * mono_class_get_field_from_name:
6438 * @klass: the class to lookup the field.
6439 * @name: the field name
6441 * Search the class @klass and it's parents for a field with the name @name.
6443 * Returns: the MonoClassField pointer of the named field or NULL
6446 mono_class_get_field_from_name (MonoClass *klass, const char *name)
6448 return mono_class_get_field_from_name_full (klass, name, NULL);
6452 * mono_class_get_field_from_name_full:
6453 * @klass: the class to lookup the field.
6454 * @name: the field name
6455 * @type: the type of the fields. This optional.
6457 * Search the class @klass and it's parents for a field with the name @name and type @type.
6459 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
6460 * of its generic type definition.
6462 * Returns: the MonoClassField pointer of the named field or NULL
6465 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
6469 mono_class_setup_fields_locking (klass);
6470 if (klass->exception_type)
6474 for (i = 0; i < klass->field.count; ++i) {
6475 MonoClassField *field = &klass->fields [i];
6477 if (strcmp (name, mono_field_get_name (field)) != 0)
6481 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
6482 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
6487 klass = klass->parent;
6493 * mono_class_get_field_token:
6494 * @field: the field we need the token of
6496 * Get the token of a field. Note that the tokesn is only valid for the image
6497 * the field was loaded from. Don't use this function for fields in dynamic types.
6499 * Returns: the token representing the field in the image it was loaded from.
6502 mono_class_get_field_token (MonoClassField *field)
6504 MonoClass *klass = field->parent;
6507 mono_class_setup_fields_locking (klass);
6512 for (i = 0; i < klass->field.count; ++i) {
6513 if (&klass->fields [i] == field) {
6514 int idx = klass->field.first + i + 1;
6516 if (klass->image->uncompressed_metadata)
6517 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
6518 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
6521 klass = klass->parent;
6524 g_assert_not_reached ();
6529 mono_field_get_index (MonoClassField *field)
6531 int index = field - field->parent->fields;
6533 g_assert (index >= 0 && index < field->parent->field.count);
6539 * mono_class_get_field_default_value:
6541 * Return the default value of the field as a pointer into the metadata blob.
6544 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
6547 guint32 constant_cols [MONO_CONSTANT_SIZE];
6549 MonoClass *klass = field->parent;
6551 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
6553 if (!klass->ext || !klass->ext->field_def_values) {
6554 mono_loader_lock ();
6555 mono_class_alloc_ext (klass);
6556 if (!klass->ext->field_def_values)
6557 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
6558 mono_loader_unlock ();
6561 field_index = mono_field_get_index (field);
6563 if (!klass->ext->field_def_values [field_index].data) {
6564 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
6568 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
6570 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6571 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
6572 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
6575 *def_type = klass->ext->field_def_values [field_index].def_type;
6576 return klass->ext->field_def_values [field_index].data;
6580 mono_property_get_index (MonoProperty *prop)
6582 int index = prop - prop->parent->ext->properties;
6584 g_assert (index >= 0 && index < prop->parent->ext->property.count);
6590 * mono_class_get_property_default_value:
6592 * Return the default value of the field as a pointer into the metadata blob.
6595 mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type)
6598 guint32 constant_cols [MONO_CONSTANT_SIZE];
6599 MonoClass *klass = property->parent;
6601 g_assert (property->attrs & PROPERTY_ATTRIBUTE_HAS_DEFAULT);
6603 * We don't cache here because it is not used by C# so it's quite rare, but
6604 * we still do the lookup in klass->ext because that is where the data
6605 * is stored for dynamic assemblies.
6608 if (klass->image->dynamic) {
6609 int prop_index = mono_property_get_index (property);
6610 if (klass->ext->prop_def_values && klass->ext->prop_def_values [prop_index].data) {
6611 *def_type = klass->ext->prop_def_values [prop_index].def_type;
6612 return klass->ext->prop_def_values [prop_index].data;
6616 cindex = mono_metadata_get_constant_index (klass->image, mono_class_get_property_token (property), 0);
6620 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6621 *def_type = constant_cols [MONO_CONSTANT_TYPE];
6622 return (gpointer)mono_metadata_blob_heap (klass->image, constant_cols [MONO_CONSTANT_VALUE]);
6626 mono_class_get_event_token (MonoEvent *event)
6628 MonoClass *klass = event->parent;
6633 for (i = 0; i < klass->ext->event.count; ++i) {
6634 if (&klass->ext->events [i] == event)
6635 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
6638 klass = klass->parent;
6641 g_assert_not_reached ();
6646 mono_class_get_property_from_name (MonoClass *klass, const char *name)
6650 gpointer iter = NULL;
6651 while ((p = mono_class_get_properties (klass, &iter))) {
6652 if (! strcmp (name, p->name))
6655 klass = klass->parent;
6661 mono_class_get_property_token (MonoProperty *prop)
6663 MonoClass *klass = prop->parent;
6667 gpointer iter = NULL;
6668 while ((p = mono_class_get_properties (klass, &iter))) {
6669 if (&klass->ext->properties [i] == prop)
6670 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
6674 klass = klass->parent;
6677 g_assert_not_reached ();
6682 mono_class_name_from_token (MonoImage *image, guint32 type_token)
6684 const char *name, *nspace;
6686 return g_strdup_printf ("DynamicType 0x%08x", type_token);
6688 switch (type_token & 0xff000000){
6689 case MONO_TOKEN_TYPE_DEF: {
6690 guint32 cols [MONO_TYPEDEF_SIZE];
6691 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
6692 guint tidx = mono_metadata_token_index (type_token);
6694 if (tidx > tt->rows)
6695 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6697 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
6698 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6699 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6700 if (strlen (nspace) == 0)
6701 return g_strdup_printf ("%s", name);
6703 return g_strdup_printf ("%s.%s", nspace, name);
6706 case MONO_TOKEN_TYPE_REF: {
6708 guint32 cols [MONO_TYPEREF_SIZE];
6709 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6710 guint tidx = mono_metadata_token_index (type_token);
6713 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6715 if (!mono_verifier_verify_typeref_row (image, tidx - 1, &error)) {
6716 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6717 mono_error_cleanup (&error);
6721 mono_metadata_decode_row (t, tidx-1, cols, MONO_TYPEREF_SIZE);
6722 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
6723 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
6724 if (strlen (nspace) == 0)
6725 return g_strdup_printf ("%s", name);
6727 return g_strdup_printf ("%s.%s", nspace, name);
6730 case MONO_TOKEN_TYPE_SPEC:
6731 return g_strdup_printf ("Typespec 0x%08x", type_token);
6733 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6738 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
6741 return g_strdup_printf ("DynamicAssembly %s", image->name);
6743 switch (type_token & 0xff000000){
6744 case MONO_TOKEN_TYPE_DEF:
6745 if (image->assembly)
6746 return mono_stringify_assembly_name (&image->assembly->aname);
6747 else if (image->assembly_name)
6748 return g_strdup (image->assembly_name);
6749 return g_strdup_printf ("%s", image->name ? image->name : "[Could not resolve assembly name");
6750 case MONO_TOKEN_TYPE_REF: {
6752 MonoAssemblyName aname;
6753 guint32 cols [MONO_TYPEREF_SIZE];
6754 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6755 guint32 idx = mono_metadata_token_index (type_token);
6758 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6760 if (!mono_verifier_verify_typeref_row (image, idx - 1, &error)) {
6761 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6762 mono_error_cleanup (&error);
6765 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPEREF_SIZE);
6767 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
6768 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
6769 case MONO_RESOLTION_SCOPE_MODULE:
6771 return g_strdup ("");
6772 case MONO_RESOLTION_SCOPE_MODULEREF:
6774 return g_strdup ("");
6775 case MONO_RESOLTION_SCOPE_TYPEREF:
6777 return g_strdup ("");
6778 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
6779 mono_assembly_get_assemblyref (image, idx - 1, &aname);
6780 return mono_stringify_assembly_name (&aname);
6782 g_assert_not_reached ();
6786 case MONO_TOKEN_TYPE_SPEC:
6788 return g_strdup ("");
6790 g_assert_not_reached ();
6797 * mono_class_get_full:
6798 * @image: the image where the class resides
6799 * @type_token: the token for the class
6800 * @context: the generic context used to evaluate generic instantiations in
6802 * Returns: the MonoClass that represents @type_token in @image
6805 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6808 MonoClass *class = NULL;
6810 if (image->dynamic) {
6811 int table = mono_metadata_token_table (type_token);
6813 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
6814 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6817 return mono_lookup_dynamic_token (image, type_token, context);
6820 switch (type_token & 0xff000000){
6821 case MONO_TOKEN_TYPE_DEF:
6822 class = mono_class_create_from_typedef (image, type_token);
6824 case MONO_TOKEN_TYPE_REF:
6825 class = mono_class_from_typeref (image, type_token);
6827 case MONO_TOKEN_TYPE_SPEC:
6828 class = mono_class_create_from_typespec (image, type_token, context, &error);
6829 if (!mono_error_ok (&error)) {
6830 /*FIXME don't swallow the error message*/
6831 mono_error_cleanup (&error);
6835 g_warning ("unknown token type %x", type_token & 0xff000000);
6836 g_assert_not_reached ();
6840 char *name = mono_class_name_from_token (image, type_token);
6841 char *assembly = mono_assembly_name_from_token (image, type_token);
6842 mono_loader_set_error_type_load (name, assembly);
6852 * mono_type_get_full:
6853 * @image: the image where the type resides
6854 * @type_token: the token for the type
6855 * @context: the generic context used to evaluate generic instantiations in
6857 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6859 * Returns: the MonoType that represents @type_token in @image
6862 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6865 MonoType *type = NULL;
6866 gboolean inflated = FALSE;
6868 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6870 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
6872 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
6873 MonoClass *class = mono_class_get_full (image, type_token, context);
6874 return class ? mono_class_get_type (class) : NULL;
6877 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated, &error);
6879 if (!mono_error_ok (&error)) {
6880 /*FIXME don't swalloc the error message.*/
6881 char *name = mono_class_name_from_token (image, type_token);
6882 char *assembly = mono_assembly_name_from_token (image, type_token);
6884 g_warning ("Error loading type %s from %s due to %s", name, assembly, mono_error_get_message (&error));
6886 mono_error_cleanup (&error);
6887 mono_loader_set_error_type_load (name, assembly);
6892 MonoType *tmp = type;
6893 type = mono_class_get_type (mono_class_from_mono_type (type));
6894 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6895 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6896 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6898 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6900 if (type->type != tmp->type)
6903 mono_metadata_free_type (tmp);
6910 mono_class_get (MonoImage *image, guint32 type_token)
6912 return mono_class_get_full (image, type_token, NULL);
6916 * mono_image_init_name_cache:
6918 * Initializes the class name cache stored in image->name_cache.
6920 * LOCKING: Acquires the corresponding image lock.
6923 mono_image_init_name_cache (MonoImage *image)
6925 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6926 guint32 cols [MONO_TYPEDEF_SIZE];
6929 guint32 i, visib, nspace_index;
6930 GHashTable *name_cache2, *nspace_table;
6932 mono_image_lock (image);
6934 if (image->name_cache) {
6935 mono_image_unlock (image);
6939 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
6941 if (image->dynamic) {
6942 mono_image_unlock (image);
6946 /* Temporary hash table to avoid lookups in the nspace_table */
6947 name_cache2 = g_hash_table_new (NULL, NULL);
6949 for (i = 1; i <= t->rows; ++i) {
6950 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6951 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6953 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6954 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6956 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6958 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6959 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6961 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
6962 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6963 if (!nspace_table) {
6964 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6965 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6966 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6969 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
6972 /* Load type names from EXPORTEDTYPES table */
6974 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6975 guint32 cols [MONO_EXP_TYPE_SIZE];
6978 for (i = 0; i < t->rows; ++i) {
6979 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
6980 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
6981 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
6983 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
6984 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6985 if (!nspace_table) {
6986 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6987 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6988 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6991 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
6995 g_hash_table_destroy (name_cache2);
6996 mono_image_unlock (image);
6999 /*FIXME Only dynamic assemblies should allow this operation.*/
7001 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
7002 const char *name, guint32 index)
7004 GHashTable *nspace_table;
7005 GHashTable *name_cache;
7008 mono_image_lock (image);
7010 if (!image->name_cache)
7011 mono_image_init_name_cache (image);
7013 name_cache = image->name_cache;
7014 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
7015 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
7016 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
7019 if ((old_index = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, (char*) name))))
7020 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index, image->name, nspace, name);
7022 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
7024 mono_image_unlock (image);
7033 find_nocase (gpointer key, gpointer value, gpointer user_data)
7035 char *name = (char*)key;
7036 FindUserData *data = (FindUserData*)user_data;
7038 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
7039 data->value = value;
7043 * mono_class_from_name_case:
7044 * @image: The MonoImage where the type is looked up in
7045 * @name_space: the type namespace
7046 * @name: the type short name.
7048 * Obtains a MonoClass with a given namespace and a given name which
7049 * is located in the given MonoImage. The namespace and name
7050 * lookups are case insensitive.
7053 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
7055 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
7056 guint32 cols [MONO_TYPEDEF_SIZE];
7061 if (image->dynamic) {
7063 FindUserData user_data;
7065 mono_image_lock (image);
7067 if (!image->name_cache)
7068 mono_image_init_name_cache (image);
7070 user_data.key = name_space;
7071 user_data.value = NULL;
7072 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
7074 if (user_data.value) {
7075 GHashTable *nspace_table = (GHashTable*)user_data.value;
7077 user_data.key = name;
7078 user_data.value = NULL;
7080 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
7082 if (user_data.value)
7083 token = GPOINTER_TO_UINT (user_data.value);
7086 mono_image_unlock (image);
7089 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
7095 /* add a cache if needed */
7096 for (i = 1; i <= t->rows; ++i) {
7097 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
7098 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7100 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
7101 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
7103 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
7105 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
7106 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
7107 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
7108 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
7114 return_nested_in (MonoClass *class, char *nested)
7117 char *s = strchr (nested, '/');
7118 gpointer iter = NULL;
7125 while ((found = mono_class_get_nested_types (class, &iter))) {
7126 if (strcmp (found->name, nested) == 0) {
7128 return return_nested_in (found, s);
7136 search_modules (MonoImage *image, const char *name_space, const char *name)
7138 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
7139 MonoImage *file_image;
7144 * The EXPORTEDTYPES table only contains public types, so have to search the
7146 * Note: image->modules contains the contents of the MODULEREF table, while
7147 * the real module list is in the FILE table.
7149 for (i = 0; i < file_table->rows; i++) {
7150 guint32 cols [MONO_FILE_SIZE];
7151 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
7152 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
7155 file_image = mono_image_load_file_for_image (image, i + 1);
7157 class = mono_class_from_name (file_image, name_space, name);
7167 * mono_class_from_name:
7168 * @image: The MonoImage where the type is looked up in
7169 * @name_space: the type namespace
7170 * @name: the type short name.
7172 * Obtains a MonoClass with a given namespace and a given name which
7173 * is located in the given MonoImage.
7176 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
7178 GHashTable *nspace_table;
7179 MonoImage *loaded_image;
7186 if ((nested = strchr (name, '/'))) {
7187 int pos = nested - name;
7188 int len = strlen (name);
7191 memcpy (buf, name, len + 1);
7193 nested = buf + pos + 1;
7197 /* FIXME: get_class_from_name () can't handle types in the EXPORTEDTYPE table */
7198 if (get_class_from_name && image->tables [MONO_TABLE_EXPORTEDTYPE].rows == 0) {
7199 gboolean res = get_class_from_name (image, name_space, name, &class);
7202 class = search_modules (image, name_space, name);
7204 return class ? return_nested_in (class, nested) : NULL;
7210 mono_image_lock (image);
7212 if (!image->name_cache)
7213 mono_image_init_name_cache (image);
7215 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
7218 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
7220 mono_image_unlock (image);
7222 if (!token && image->dynamic && image->modules) {
7223 /* Search modules as well */
7224 for (i = 0; i < image->module_count; ++i) {
7225 MonoImage *module = image->modules [i];
7227 class = mono_class_from_name (module, name_space, name);
7234 class = search_modules (image, name_space, name);
7242 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
7243 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
7244 guint32 cols [MONO_EXP_TYPE_SIZE];
7247 idx = mono_metadata_token_index (token);
7249 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
7251 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
7252 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
7253 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
7256 class = mono_class_from_name (loaded_image, name_space, name);
7258 return return_nested_in (class, nested);
7260 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
7261 guint32 assembly_idx;
7263 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
7265 mono_assembly_load_reference (image, assembly_idx - 1);
7266 g_assert (image->references [assembly_idx - 1]);
7267 if (image->references [assembly_idx - 1] == (gpointer)-1)
7270 /* FIXME: Cycle detection */
7271 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
7273 g_error ("not yet implemented");
7277 token = MONO_TOKEN_TYPE_DEF | token;
7279 class = mono_class_get (image, token);
7281 return return_nested_in (class, nested);
7285 /*FIXME test for interfaces with variant generic arguments*/
7287 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
7288 gboolean check_interfaces)
7290 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
7291 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
7293 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
7296 for (i = 0; i < klass->interface_count; i ++) {
7297 MonoClass *ic = klass->interfaces [i];
7302 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
7307 * MS.NET thinks interfaces are a subclass of Object, so we think it as
7310 if (klassc == mono_defaults.object_class)
7317 mono_type_is_generic_argument (MonoType *type)
7319 return type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR;
7323 mono_class_has_variant_generic_params (MonoClass *klass)
7326 MonoGenericContainer *container;
7328 if (!klass->generic_class)
7331 container = klass->generic_class->container_class->generic_container;
7333 for (i = 0; i < container->type_argc; ++i)
7334 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
7341 mono_gparam_is_reference_conversible (MonoClass *target, MonoClass *candidate, gboolean check_for_reference_conv)
7343 if (target == candidate)
7346 if (check_for_reference_conv &&
7347 mono_type_is_generic_argument (&target->byval_arg) &&
7348 mono_type_is_generic_argument (&candidate->byval_arg)) {
7349 MonoGenericParam *gparam = candidate->byval_arg.data.generic_param;
7350 MonoGenericParamInfo *pinfo = mono_generic_param_info (gparam);
7352 if (!pinfo || (pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) == 0)
7355 if (!mono_class_is_assignable_from (target, candidate))
7361 * @container the generic container from the GTD
7362 * @klass: the class to be assigned to
7363 * @oklass: the source class
7365 * Both klass and oklass must be instances of the same generic interface.
7366 * Return true if @klass can be assigned to a @klass variable
7369 mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass, gboolean check_for_reference_conv)
7372 MonoType **klass_argv, **oklass_argv;
7373 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7374 MonoGenericContainer *container = klass_gtd->generic_container;
7376 if (klass == oklass)
7379 /*Viable candidates are instances of the same generic interface*/
7380 if (mono_class_get_generic_type_definition (oklass) != klass_gtd || oklass == klass_gtd)
7383 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7384 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7386 for (j = 0; j < container->type_argc; ++j) {
7387 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7388 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7390 if (param1_class->valuetype != param2_class->valuetype || (param1_class->valuetype && param1_class != param2_class))
7394 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7395 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7397 if (param1_class != param2_class) {
7398 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7399 if (!mono_gparam_is_reference_conversible (param1_class, param2_class, check_for_reference_conv))
7401 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7402 if (!mono_gparam_is_reference_conversible (param2_class, param1_class, check_for_reference_conv))
7412 mono_gparam_is_assignable_from (MonoClass *target, MonoClass *candidate)
7414 MonoGenericParam *gparam, *ogparam;
7415 MonoGenericParamInfo *tinfo, *cinfo;
7416 MonoClass **candidate_class;
7417 gboolean class_constraint_satisfied, valuetype_constraint_satisfied;
7420 if (target == candidate)
7422 if (target->byval_arg.type != candidate->byval_arg.type)
7425 gparam = target->byval_arg.data.generic_param;
7426 ogparam = candidate->byval_arg.data.generic_param;
7427 tinfo = mono_generic_param_info (gparam);
7428 cinfo = mono_generic_param_info (ogparam);
7430 class_constraint_satisfied = FALSE;
7431 valuetype_constraint_satisfied = FALSE;
7433 /*candidate must have a super set of target's special constraints*/
7434 tmask = tinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_SPECIAL_CONSTRAINTS_MASK;
7435 cmask = cinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_SPECIAL_CONSTRAINTS_MASK;
7437 if (cinfo->constraints) {
7438 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7439 MonoClass *cc = *candidate_class;
7441 if (mono_type_is_reference (&cc->byval_arg) && !MONO_CLASS_IS_INTERFACE (cc))
7442 class_constraint_satisfied = TRUE;
7443 else if (!mono_type_is_reference (&cc->byval_arg) && !MONO_CLASS_IS_INTERFACE (cc))
7444 valuetype_constraint_satisfied = TRUE;
7447 class_constraint_satisfied |= (cmask & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) != 0;
7448 valuetype_constraint_satisfied |= (cmask & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT) != 0;
7450 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) && !class_constraint_satisfied)
7452 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT) && !valuetype_constraint_satisfied)
7454 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_CONSTRUCTOR_CONSTRAINT) && !((cmask & GENERIC_PARAMETER_ATTRIBUTE_CONSTRUCTOR_CONSTRAINT) ||
7455 valuetype_constraint_satisfied)) {
7460 /*candidate type constraints must be a superset of target's*/
7461 if (tinfo->constraints) {
7462 MonoClass **target_class;
7463 for (target_class = tinfo->constraints; *target_class; ++target_class) {
7464 MonoClass *tc = *target_class;
7467 * A constraint from @target might inflate into @candidate itself and in that case we don't need
7468 * check it's constraints since it satisfy the constraint by itself.
7470 if (mono_metadata_type_equal (&tc->byval_arg, &candidate->byval_arg))
7473 if (!cinfo->constraints)
7476 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7477 MonoClass *cc = *candidate_class;
7479 if (mono_class_is_assignable_from (tc, cc))
7483 * This happens when we have the following:
7485 * Bar<K> where K : IFace
7486 * Foo<T, U> where T : U where U : IFace
7488 * Bar<T> <- T here satisfy K constraint transitively through to U's constraint
7491 if (mono_type_is_generic_argument (&cc->byval_arg)) {
7492 if (mono_gparam_is_assignable_from (target, cc))
7496 if (!*candidate_class)
7501 /*candidate itself must have a constraint that satisfy target*/
7502 if (cinfo->constraints) {
7503 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7504 MonoClass *cc = *candidate_class;
7505 if (mono_class_is_assignable_from (target, cc))
7513 * mono_class_is_assignable_from:
7514 * @klass: the class to be assigned to
7515 * @oklass: the source class
7517 * Return: true if an instance of object oklass can be assigned to an
7518 * instance of object @klass
7521 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
7523 /*FIXME this will cause a lot of irrelevant stuff to be loaded.*/
7525 mono_class_init (klass);
7527 if (!oklass->inited)
7528 mono_class_init (oklass);
7530 if (klass->exception_type || oklass->exception_type)
7533 if (mono_type_is_generic_argument (&klass->byval_arg)) {
7534 if (!mono_type_is_generic_argument (&oklass->byval_arg))
7536 return mono_gparam_is_assignable_from (klass, oklass);
7539 if (MONO_CLASS_IS_INTERFACE (klass)) {
7540 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR)) {
7541 MonoGenericParam *gparam = oklass->byval_arg.data.generic_param;
7542 MonoClass **constraints = mono_generic_container_get_param_info (gparam->owner, gparam->num)->constraints;
7546 for (i = 0; constraints [i]; ++i) {
7547 if (mono_class_is_assignable_from (klass, constraints [i]))
7555 /* interface_offsets might not be set for dynamic classes */
7556 if (oklass->ref_info_handle && !oklass->interface_bitmap)
7558 * oklass might be a generic type parameter but they have
7559 * interface_offsets set.
7561 return mono_reflection_call_is_assignable_to (oklass, klass);
7562 if (!oklass->interface_bitmap)
7563 /* Happens with generic instances of not-yet created dynamic types */
7565 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
7568 if (mono_class_has_variant_generic_params (klass)) {
7571 mono_class_setup_interfaces (oklass, &error);
7572 if (!mono_error_ok (&error)) {
7573 mono_error_cleanup (&error);
7577 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
7578 for (i = 0; i < oklass->interface_offsets_count; ++i) {
7579 MonoClass *iface = oklass->interfaces_packed [i];
7581 if (mono_class_is_variant_compatible (klass, iface, FALSE))
7586 } else if (klass->delegate) {
7587 if (mono_class_has_variant_generic_params (klass) && mono_class_is_variant_compatible (klass, oklass, FALSE))
7589 }else if (klass->rank) {
7590 MonoClass *eclass, *eoclass;
7592 if (oklass->rank != klass->rank)
7595 /* vectors vs. one dimensional arrays */
7596 if (oklass->byval_arg.type != klass->byval_arg.type)
7599 eclass = klass->cast_class;
7600 eoclass = oklass->cast_class;
7603 * a is b does not imply a[] is b[] when a is a valuetype, and
7604 * b is a reference type.
7607 if (eoclass->valuetype) {
7608 if ((eclass == mono_defaults.enum_class) ||
7609 (eclass == mono_defaults.enum_class->parent) ||
7610 (eclass == mono_defaults.object_class))
7614 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7615 } else if (mono_class_is_nullable (klass)) {
7616 if (mono_class_is_nullable (oklass))
7617 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7619 return mono_class_is_assignable_from (klass->cast_class, oklass);
7620 } else if (klass == mono_defaults.object_class)
7623 return mono_class_has_parent (oklass, klass);
7626 /*Check if @oklass is variant compatible with @klass.*/
7628 mono_class_is_variant_compatible_slow (MonoClass *klass, MonoClass *oklass)
7631 MonoType **klass_argv, **oklass_argv;
7632 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7633 MonoGenericContainer *container = klass_gtd->generic_container;
7635 /*Viable candidates are instances of the same generic interface*/
7636 if (mono_class_get_generic_type_definition (oklass) != klass_gtd || oklass == klass_gtd)
7639 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7640 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7642 for (j = 0; j < container->type_argc; ++j) {
7643 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7644 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7646 if (param1_class->valuetype != param2_class->valuetype)
7650 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7651 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7653 if (param1_class != param2_class) {
7654 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7655 if (!mono_class_is_assignable_from_slow (param1_class, param2_class))
7657 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7658 if (!mono_class_is_assignable_from_slow (param2_class, param1_class))
7666 /*Check if @candidate implements the interface @target*/
7668 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
7672 gboolean is_variant = mono_class_has_variant_generic_params (target);
7674 if (is_variant && MONO_CLASS_IS_INTERFACE (candidate)) {
7675 if (mono_class_is_variant_compatible_slow (target, candidate))
7680 if (candidate == target)
7683 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7684 if (candidate->image->dynamic && !candidate->wastypebuilder) {
7685 MonoReflectionTypeBuilder *tb = mono_class_get_ref_info (candidate);
7687 if (tb && tb->interfaces) {
7688 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
7689 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
7690 MonoClass *iface_class;
7692 /* we can't realize the type here since it can do pretty much anything. */
7695 iface_class = mono_class_from_mono_type (iface->type);
7696 if (iface_class == target)
7698 if (is_variant && mono_class_is_variant_compatible_slow (target, iface_class))
7700 if (mono_class_implement_interface_slow (target, iface_class))
7705 /*setup_interfaces don't mono_class_init anything*/
7706 mono_class_setup_interfaces (candidate, &error);
7707 if (!mono_error_ok (&error)) {
7708 mono_error_cleanup (&error);
7712 for (i = 0; i < candidate->interface_count; ++i) {
7713 if (candidate->interfaces [i] == target)
7716 if (is_variant && mono_class_is_variant_compatible_slow (target, candidate->interfaces [i]))
7719 if (mono_class_implement_interface_slow (target, candidate->interfaces [i]))
7723 candidate = candidate->parent;
7724 } while (candidate);
7730 * Check if @oklass can be assigned to @klass.
7731 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7734 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
7736 if (candidate == target)
7738 if (target == mono_defaults.object_class)
7741 if (mono_class_has_parent (candidate, target))
7744 /*If target is not an interface there is no need to check them.*/
7745 if (MONO_CLASS_IS_INTERFACE (target))
7746 return mono_class_implement_interface_slow (target, candidate);
7748 if (target->delegate && mono_class_has_variant_generic_params (target))
7749 return mono_class_is_variant_compatible (target, candidate, FALSE);
7751 /*FIXME properly handle nullables and arrays */
7752 /*FIXME properly handle (M)VAR */
7757 * mono_class_get_cctor:
7758 * @klass: A MonoClass pointer
7760 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7763 mono_class_get_cctor (MonoClass *klass)
7765 MonoCachedClassInfo cached_info;
7767 if (klass->image->dynamic) {
7769 * has_cctor is not set for these classes because mono_class_init () is
7772 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7775 if (!klass->has_cctor)
7778 if (mono_class_get_cached_class_info (klass, &cached_info))
7779 return mono_get_method (klass->image, cached_info.cctor_token, klass);
7781 if (klass->generic_class && !klass->methods)
7782 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
7784 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7788 * mono_class_get_finalizer:
7789 * @klass: The MonoClass pointer
7791 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7794 mono_class_get_finalizer (MonoClass *klass)
7796 MonoCachedClassInfo cached_info;
7799 mono_class_init (klass);
7800 if (!mono_class_has_finalizer (klass))
7803 if (mono_class_get_cached_class_info (klass, &cached_info))
7804 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
7806 mono_class_setup_vtable (klass);
7807 return klass->vtable [finalize_slot];
7812 * mono_class_needs_cctor_run:
7813 * @klass: the MonoClass pointer
7814 * @caller: a MonoMethod describing the caller
7816 * Determines whenever the class has a static constructor and whenever it
7817 * needs to be called when executing CALLER.
7820 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
7824 method = mono_class_get_cctor (klass);
7826 return (method == caller) ? FALSE : TRUE;
7832 * mono_class_array_element_size:
7835 * Returns: the number of bytes an element of type @klass
7836 * uses when stored into an array.
7839 mono_class_array_element_size (MonoClass *klass)
7841 MonoType *type = &klass->byval_arg;
7844 switch (type->type) {
7847 case MONO_TYPE_BOOLEAN:
7851 case MONO_TYPE_CHAR:
7860 case MONO_TYPE_CLASS:
7861 case MONO_TYPE_STRING:
7862 case MONO_TYPE_OBJECT:
7863 case MONO_TYPE_SZARRAY:
7864 case MONO_TYPE_ARRAY:
7866 case MONO_TYPE_MVAR:
7867 return sizeof (gpointer);
7872 case MONO_TYPE_VALUETYPE:
7873 if (type->data.klass->enumtype) {
7874 type = mono_class_enum_basetype (type->data.klass);
7875 klass = klass->element_class;
7878 return mono_class_instance_size (klass) - sizeof (MonoObject);
7879 case MONO_TYPE_GENERICINST:
7880 type = &type->data.generic_class->container_class->byval_arg;
7883 case MONO_TYPE_VOID:
7887 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
7893 * mono_array_element_size:
7894 * @ac: pointer to a #MonoArrayClass
7896 * Returns: the size of single array element.
7899 mono_array_element_size (MonoClass *ac)
7901 g_assert (ac->rank);
7902 return ac->sizes.element_size;
7906 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
7907 MonoGenericContext *context)
7909 if (image->dynamic) {
7910 MonoClass *tmp_handle_class;
7911 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
7913 g_assert (tmp_handle_class);
7915 *handle_class = tmp_handle_class;
7917 if (tmp_handle_class == mono_defaults.typehandle_class)
7918 return &((MonoClass*)obj)->byval_arg;
7923 switch (token & 0xff000000) {
7924 case MONO_TOKEN_TYPE_DEF:
7925 case MONO_TOKEN_TYPE_REF:
7926 case MONO_TOKEN_TYPE_SPEC: {
7929 *handle_class = mono_defaults.typehandle_class;
7930 type = mono_type_get_full (image, token, context);
7933 mono_class_init (mono_class_from_mono_type (type));
7934 /* We return a MonoType* as handle */
7937 case MONO_TOKEN_FIELD_DEF: {
7939 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
7943 *handle_class = mono_defaults.fieldhandle_class;
7944 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
7947 mono_class_init (class);
7948 return mono_class_get_field (class, token);
7950 case MONO_TOKEN_METHOD_DEF:
7951 case MONO_TOKEN_METHOD_SPEC: {
7953 meth = mono_get_method_full (image, token, NULL, context);
7955 *handle_class = mono_defaults.methodhandle_class;
7958 case MONO_TOKEN_MEMBER_REF: {
7959 guint32 cols [MONO_MEMBERREF_SIZE];
7961 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
7962 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
7963 mono_metadata_decode_blob_size (sig, &sig);
7964 if (*sig == 0x6) { /* it's a field */
7966 MonoClassField *field;
7967 field = mono_field_from_token (image, token, &klass, context);
7969 *handle_class = mono_defaults.fieldhandle_class;
7973 meth = mono_get_method_full (image, token, NULL, context);
7975 *handle_class = mono_defaults.methodhandle_class;
7980 g_warning ("Unknown token 0x%08x in ldtoken", token);
7987 * This function might need to call runtime functions so it can't be part
7988 * of the metadata library.
7990 static MonoLookupDynamicToken lookup_dynamic = NULL;
7993 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
7995 lookup_dynamic = func;
7999 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
8001 MonoClass *handle_class;
8003 return lookup_dynamic (image, token, TRUE, &handle_class, context);
8007 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
8009 return lookup_dynamic (image, token, valid_token, handle_class, context);
8012 static MonoGetCachedClassInfo get_cached_class_info = NULL;
8015 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
8017 get_cached_class_info = func;
8021 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
8023 if (!get_cached_class_info)
8026 return get_cached_class_info (klass, res);
8030 mono_install_get_class_from_name (MonoGetClassFromName func)
8032 get_class_from_name = func;
8036 mono_class_get_image (MonoClass *klass)
8038 return klass->image;
8042 * mono_class_get_element_class:
8043 * @klass: the MonoClass to act on
8045 * Returns: the element class of an array or an enumeration.
8048 mono_class_get_element_class (MonoClass *klass)
8050 return klass->element_class;
8054 * mono_class_is_valuetype:
8055 * @klass: the MonoClass to act on
8057 * Returns: true if the MonoClass represents a ValueType.
8060 mono_class_is_valuetype (MonoClass *klass)
8062 return klass->valuetype;
8066 * mono_class_is_enum:
8067 * @klass: the MonoClass to act on
8069 * Returns: true if the MonoClass represents an enumeration.
8072 mono_class_is_enum (MonoClass *klass)
8074 return klass->enumtype;
8078 * mono_class_enum_basetype:
8079 * @klass: the MonoClass to act on
8081 * Returns: the underlying type representation for an enumeration.
8084 mono_class_enum_basetype (MonoClass *klass)
8086 if (klass->element_class == klass)
8087 /* SRE or broken types */
8090 return &klass->element_class->byval_arg;
8094 * mono_class_get_parent
8095 * @klass: the MonoClass to act on
8097 * Returns: the parent class for this class.
8100 mono_class_get_parent (MonoClass *klass)
8102 return klass->parent;
8106 * mono_class_get_nesting_type;
8107 * @klass: the MonoClass to act on
8109 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
8112 mono_class_get_nesting_type (MonoClass *klass)
8114 return klass->nested_in;
8118 * mono_class_get_rank:
8119 * @klass: the MonoClass to act on
8121 * Returns: the rank for the array (the number of dimensions).
8124 mono_class_get_rank (MonoClass *klass)
8130 * mono_class_get_flags:
8131 * @klass: the MonoClass to act on
8133 * The type flags from the TypeDef table from the metadata.
8134 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
8137 * Returns: the flags from the TypeDef table.
8140 mono_class_get_flags (MonoClass *klass)
8142 return klass->flags;
8146 * mono_class_get_name
8147 * @klass: the MonoClass to act on
8149 * Returns: the name of the class.
8152 mono_class_get_name (MonoClass *klass)
8158 * mono_class_get_namespace:
8159 * @klass: the MonoClass to act on
8161 * Returns: the namespace of the class.
8164 mono_class_get_namespace (MonoClass *klass)
8166 return klass->name_space;
8170 * mono_class_get_type:
8171 * @klass: the MonoClass to act on
8173 * This method returns the internal Type representation for the class.
8175 * Returns: the MonoType from the class.
8178 mono_class_get_type (MonoClass *klass)
8180 return &klass->byval_arg;
8184 * mono_class_get_type_token
8185 * @klass: the MonoClass to act on
8187 * This method returns type token for the class.
8189 * Returns: the type token for the class.
8192 mono_class_get_type_token (MonoClass *klass)
8194 return klass->type_token;
8198 * mono_class_get_byref_type:
8199 * @klass: the MonoClass to act on
8204 mono_class_get_byref_type (MonoClass *klass)
8206 return &klass->this_arg;
8210 * mono_class_num_fields:
8211 * @klass: the MonoClass to act on
8213 * Returns: the number of static and instance fields in the class.
8216 mono_class_num_fields (MonoClass *klass)
8218 return klass->field.count;
8222 * mono_class_num_methods:
8223 * @klass: the MonoClass to act on
8225 * Returns: the number of methods in the class.
8228 mono_class_num_methods (MonoClass *klass)
8230 return klass->method.count;
8234 * mono_class_num_properties
8235 * @klass: the MonoClass to act on
8237 * Returns: the number of properties in the class.
8240 mono_class_num_properties (MonoClass *klass)
8242 mono_class_setup_properties (klass);
8244 return klass->ext->property.count;
8248 * mono_class_num_events:
8249 * @klass: the MonoClass to act on
8251 * Returns: the number of events in the class.
8254 mono_class_num_events (MonoClass *klass)
8256 mono_class_setup_events (klass);
8258 return klass->ext->event.count;
8262 * mono_class_get_fields:
8263 * @klass: the MonoClass to act on
8265 * This routine is an iterator routine for retrieving the fields in a class.
8267 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8268 * iterate over all of the elements. When no more values are
8269 * available, the return value is NULL.
8271 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
8274 mono_class_get_fields (MonoClass* klass, gpointer *iter)
8276 MonoClassField* field;
8280 mono_class_setup_fields_locking (klass);
8281 if (klass->exception_type)
8283 /* start from the first */
8284 if (klass->field.count) {
8285 return *iter = &klass->fields [0];
8293 if (field < &klass->fields [klass->field.count]) {
8294 return *iter = field;
8300 * mono_class_get_methods
8301 * @klass: the MonoClass to act on
8303 * This routine is an iterator routine for retrieving the fields in a class.
8305 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8306 * iterate over all of the elements. When no more values are
8307 * available, the return value is NULL.
8309 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
8312 mono_class_get_methods (MonoClass* klass, gpointer *iter)
8314 MonoMethod** method;
8318 mono_class_setup_methods (klass);
8321 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8322 * FIXME we should better report this error to the caller
8324 if (!klass->methods)
8326 /* start from the first */
8327 if (klass->method.count) {
8328 *iter = &klass->methods [0];
8329 return klass->methods [0];
8337 if (method < &klass->methods [klass->method.count]) {
8345 * mono_class_get_virtual_methods:
8347 * Iterate over the virtual methods of KLASS.
8349 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
8352 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
8354 MonoMethod** method;
8357 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
8359 mono_class_setup_methods (klass);
8361 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8362 * FIXME we should better report this error to the caller
8364 if (!klass->methods)
8366 /* start from the first */
8367 method = &klass->methods [0];
8372 while (method < &klass->methods [klass->method.count]) {
8373 if (*method && ((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
8377 if (method < &klass->methods [klass->method.count]) {
8384 /* Search directly in metadata to avoid calling setup_methods () */
8385 MonoMethod *res = NULL;
8391 start_index = GPOINTER_TO_UINT (*iter);
8394 for (i = start_index; i < klass->method.count; ++i) {
8397 /* class->method.first points into the methodptr table */
8398 flags = mono_metadata_decode_table_row_col (klass->image, MONO_TABLE_METHOD, klass->method.first + i, MONO_METHOD_FLAGS);
8400 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
8404 if (i < klass->method.count) {
8405 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8406 /* Add 1 here so the if (*iter) check fails */
8407 *iter = GUINT_TO_POINTER (i + 1);
8416 * mono_class_get_properties:
8417 * @klass: the MonoClass to act on
8419 * This routine is an iterator routine for retrieving the properties in a class.
8421 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8422 * iterate over all of the elements. When no more values are
8423 * available, the return value is NULL.
8425 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
8428 mono_class_get_properties (MonoClass* klass, gpointer *iter)
8430 MonoProperty* property;
8434 mono_class_setup_properties (klass);
8435 /* start from the first */
8436 if (klass->ext->property.count) {
8437 return *iter = &klass->ext->properties [0];
8445 if (property < &klass->ext->properties [klass->ext->property.count]) {
8446 return *iter = property;
8452 * mono_class_get_events:
8453 * @klass: the MonoClass to act on
8455 * This routine is an iterator routine for retrieving the properties in a class.
8457 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8458 * iterate over all of the elements. When no more values are
8459 * available, the return value is NULL.
8461 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
8464 mono_class_get_events (MonoClass* klass, gpointer *iter)
8470 mono_class_setup_events (klass);
8471 /* start from the first */
8472 if (klass->ext->event.count) {
8473 return *iter = &klass->ext->events [0];
8481 if (event < &klass->ext->events [klass->ext->event.count]) {
8482 return *iter = event;
8488 * mono_class_get_interfaces
8489 * @klass: the MonoClass to act on
8491 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
8493 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8494 * iterate over all of the elements. When no more values are
8495 * available, the return value is NULL.
8497 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8500 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
8508 mono_class_init (klass);
8509 if (!klass->interfaces_inited) {
8510 mono_class_setup_interfaces (klass, &error);
8511 if (!mono_error_ok (&error)) {
8512 mono_error_cleanup (&error);
8516 /* start from the first */
8517 if (klass->interface_count) {
8518 *iter = &klass->interfaces [0];
8519 return klass->interfaces [0];
8527 if (iface < &klass->interfaces [klass->interface_count]) {
8535 * mono_class_get_nested_types
8536 * @klass: the MonoClass to act on
8538 * This routine is an iterator routine for retrieving the nested types of a class.
8539 * This works only if @klass is non-generic, or a generic type definition.
8541 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8542 * iterate over all of the elements. When no more values are
8543 * available, the return value is NULL.
8545 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8548 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
8555 if (!klass->nested_classes_inited) {
8556 if (!klass->type_token)
8557 klass->nested_classes_inited = TRUE;
8558 mono_loader_lock ();
8559 if (!klass->nested_classes_inited) {
8560 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
8563 guint32 cols [MONO_NESTED_CLASS_SIZE];
8564 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
8565 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
8567 mono_loader_clear_error ();
8568 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8571 mono_class_alloc_ext (klass);
8572 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
8574 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8577 mono_memory_barrier ();
8578 klass->nested_classes_inited = TRUE;
8579 mono_loader_unlock ();
8583 /* start from the first */
8584 if (klass->ext && klass->ext->nested_classes) {
8585 *iter = klass->ext->nested_classes;
8586 return klass->ext->nested_classes->data;
8588 /* no nested types */
8602 * mono_field_get_name:
8603 * @field: the MonoClassField to act on
8605 * Returns: the name of the field.
8608 mono_field_get_name (MonoClassField *field)
8614 * mono_field_get_type:
8615 * @field: the MonoClassField to act on
8617 * Returns: MonoType of the field.
8620 mono_field_get_type (MonoClassField *field)
8623 MonoType *type = mono_field_get_type_checked (field, &error);
8624 if (!mono_error_ok (&error)) {
8625 mono_trace_warning (MONO_TRACE_TYPE, "Could not load field's type due to %s", mono_error_get_message (&error));
8626 mono_error_cleanup (&error);
8633 * mono_field_get_type_checked:
8634 * @field: the MonoClassField to act on
8635 * @error: used to return any erro found while retrieving @field type
8637 * Returns: MonoType of the field.
8640 mono_field_get_type_checked (MonoClassField *field, MonoError *error)
8642 mono_error_init (error);
8644 mono_field_resolve_type (field, error);
8649 * mono_field_get_parent:
8650 * @field: the MonoClassField to act on
8652 * Returns: MonoClass where the field was defined.
8655 mono_field_get_parent (MonoClassField *field)
8657 return field->parent;
8661 * mono_field_get_flags;
8662 * @field: the MonoClassField to act on
8664 * The metadata flags for a field are encoded using the
8665 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8667 * Returns: the flags for the field.
8670 mono_field_get_flags (MonoClassField *field)
8673 return mono_field_resolve_flags (field);
8674 return field->type->attrs;
8678 * mono_field_get_offset;
8679 * @field: the MonoClassField to act on
8681 * Returns: the field offset.
8684 mono_field_get_offset (MonoClassField *field)
8686 return field->offset;
8690 mono_field_get_rva (MonoClassField *field)
8694 MonoClass *klass = field->parent;
8696 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
8698 if (!klass->ext || !klass->ext->field_def_values) {
8699 mono_loader_lock ();
8700 mono_class_alloc_ext (klass);
8701 if (!klass->ext->field_def_values)
8702 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
8703 mono_loader_unlock ();
8706 field_index = mono_field_get_index (field);
8708 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
8709 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
8711 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
8712 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
8715 return klass->ext->field_def_values [field_index].data;
8719 * mono_field_get_data;
8720 * @field: the MonoClassField to act on
8722 * Returns: pointer to the metadata constant value or to the field
8723 * data if it has an RVA flag.
8726 mono_field_get_data (MonoClassField *field)
8728 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
8729 MonoTypeEnum def_type;
8731 return mono_class_get_field_default_value (field, &def_type);
8732 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
8733 return mono_field_get_rva (field);
8740 * mono_property_get_name:
8741 * @prop: the MonoProperty to act on
8743 * Returns: the name of the property
8746 mono_property_get_name (MonoProperty *prop)
8752 * mono_property_get_set_method
8753 * @prop: the MonoProperty to act on.
8755 * Returns: the setter method of the property (A MonoMethod)
8758 mono_property_get_set_method (MonoProperty *prop)
8764 * mono_property_get_get_method
8765 * @prop: the MonoProperty to act on.
8767 * Returns: the setter method of the property (A MonoMethod)
8770 mono_property_get_get_method (MonoProperty *prop)
8776 * mono_property_get_parent:
8777 * @prop: the MonoProperty to act on.
8779 * Returns: the MonoClass where the property was defined.
8782 mono_property_get_parent (MonoProperty *prop)
8784 return prop->parent;
8788 * mono_property_get_flags:
8789 * @prop: the MonoProperty to act on.
8791 * The metadata flags for a property are encoded using the
8792 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8794 * Returns: the flags for the property.
8797 mono_property_get_flags (MonoProperty *prop)
8803 * mono_event_get_name:
8804 * @event: the MonoEvent to act on
8806 * Returns: the name of the event.
8809 mono_event_get_name (MonoEvent *event)
8815 * mono_event_get_add_method:
8816 * @event: The MonoEvent to act on.
8818 * Returns: the @add' method for the event (a MonoMethod).
8821 mono_event_get_add_method (MonoEvent *event)
8827 * mono_event_get_remove_method:
8828 * @event: The MonoEvent to act on.
8830 * Returns: the @remove method for the event (a MonoMethod).
8833 mono_event_get_remove_method (MonoEvent *event)
8835 return event->remove;
8839 * mono_event_get_raise_method:
8840 * @event: The MonoEvent to act on.
8842 * Returns: the @raise method for the event (a MonoMethod).
8845 mono_event_get_raise_method (MonoEvent *event)
8847 return event->raise;
8851 * mono_event_get_parent:
8852 * @event: the MonoEvent to act on.
8854 * Returns: the MonoClass where the event is defined.
8857 mono_event_get_parent (MonoEvent *event)
8859 return event->parent;
8863 * mono_event_get_flags
8864 * @event: the MonoEvent to act on.
8866 * The metadata flags for an event are encoded using the
8867 * EVENT_* constants. See the tabledefs.h file for details.
8869 * Returns: the flags for the event.
8872 mono_event_get_flags (MonoEvent *event)
8874 return event->attrs;
8878 * mono_class_get_method_from_name:
8879 * @klass: where to look for the method
8880 * @name_space: name of the method
8881 * @param_count: number of parameters. -1 for any number.
8883 * Obtains a MonoMethod with a given name and number of parameters.
8884 * It only works if there are no multiple signatures for any given method name.
8887 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
8889 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
8893 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
8895 MonoMethod *res = NULL;
8898 /* Search directly in the metadata to avoid calling setup_methods () */
8899 for (i = 0; i < klass->method.count; ++i) {
8900 guint32 cols [MONO_METHOD_SIZE];
8902 MonoMethodSignature *sig;
8904 /* class->method.first points into the methodptr table */
8905 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
8907 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
8908 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8909 if (param_count == -1) {
8913 sig = mono_method_signature (method);
8914 if (sig && sig->param_count == param_count) {
8925 * mono_class_get_method_from_name_flags:
8926 * @klass: where to look for the method
8927 * @name_space: name of the method
8928 * @param_count: number of parameters. -1 for any number.
8929 * @flags: flags which must be set in the method
8931 * Obtains a MonoMethod with a given name and number of parameters.
8932 * It only works if there are no multiple signatures for any given method name.
8935 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
8937 MonoMethod *res = NULL;
8940 mono_class_init (klass);
8942 if (klass->generic_class && !klass->methods) {
8943 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
8945 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
8949 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
8950 mono_class_setup_methods (klass);
8952 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8953 See mono/tests/array_load_exception.il
8954 FIXME we should better report this error to the caller
8956 if (!klass->methods)
8958 for (i = 0; i < klass->method.count; ++i) {
8959 MonoMethod *method = klass->methods [i];
8961 if (method->name[0] == name [0] &&
8962 !strcmp (name, method->name) &&
8963 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
8964 ((method->flags & flags) == flags)) {
8971 res = find_method_in_metadata (klass, name, param_count, flags);
8978 * mono_class_set_failure:
8979 * @klass: class in which the failure was detected
8980 * @ex_type: the kind of exception/error to be thrown (later)
8981 * @ex_data: exception data (specific to each type of exception/error)
8983 * Keep a detected failure informations in the class for later processing.
8984 * Note that only the first failure is kept.
8986 * LOCKING: Acquires the loader lock.
8989 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
8991 if (klass->exception_type)
8994 mono_loader_lock ();
8995 klass->exception_type = ex_type;
8997 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
8998 mono_loader_unlock ();
9004 * mono_class_get_exception_data:
9006 * Return the exception_data property of KLASS.
9008 * LOCKING: Acquires the loader lock.
9011 mono_class_get_exception_data (MonoClass *klass)
9013 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
9017 * mono_classes_init:
9019 * Initialize the resources used by this module.
9022 mono_classes_init (void)
9024 mono_counters_register ("Inflated methods size",
9025 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
9026 mono_counters_register ("Inflated classes",
9027 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
9028 mono_counters_register ("Inflated classes size",
9029 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
9030 mono_counters_register ("MonoClass size",
9031 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
9032 mono_counters_register ("MonoClassExt size",
9033 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
9037 * mono_classes_cleanup:
9039 * Free the resources used by this module.
9042 mono_classes_cleanup (void)
9044 if (global_interface_bitset)
9045 mono_bitset_free (global_interface_bitset);
9046 global_interface_bitset = NULL;
9050 * mono_class_get_exception_for_failure:
9051 * @klass: class in which the failure was detected
9053 * Return a constructed MonoException than the caller can then throw
9054 * using mono_raise_exception - or NULL if no failure is present (or
9055 * doesn't result in an exception).
9058 mono_class_get_exception_for_failure (MonoClass *klass)
9060 gpointer exception_data = mono_class_get_exception_data (klass);
9062 switch (klass->exception_type) {
9063 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
9064 MonoDomain *domain = mono_domain_get ();
9065 MonoSecurityManager* secman = mono_security_manager_get_methods ();
9066 MonoMethod *method = exception_data;
9067 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
9068 MonoObject *exc = NULL;
9072 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
9073 args [2] = mono_type_get_object (domain, &klass->byval_arg);
9074 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
9076 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
9077 return (MonoException*) exc;
9079 case MONO_EXCEPTION_TYPE_LOAD: {
9082 char *str = mono_type_get_full_name (klass);
9083 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
9084 name = mono_string_new (mono_domain_get (), str);
9086 ex = mono_get_exception_type_load (name, astr);
9090 case MONO_EXCEPTION_MISSING_METHOD: {
9091 char *class_name = exception_data;
9092 char *assembly_name = class_name + strlen (class_name) + 1;
9094 return mono_get_exception_missing_method (class_name, assembly_name);
9096 case MONO_EXCEPTION_MISSING_FIELD: {
9097 char *class_name = exception_data;
9098 char *member_name = class_name + strlen (class_name) + 1;
9100 return mono_get_exception_missing_field (class_name, member_name);
9102 case MONO_EXCEPTION_FILE_NOT_FOUND: {
9103 char *msg_format = exception_data;
9104 char *assembly_name = msg_format + strlen (msg_format) + 1;
9105 char *msg = g_strdup_printf (msg_format, assembly_name);
9108 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
9114 case MONO_EXCEPTION_BAD_IMAGE: {
9115 return mono_get_exception_bad_image_format (exception_data);
9118 MonoLoaderError *error;
9121 error = mono_loader_get_last_error ();
9123 ex = mono_loader_error_prepare_exception (error);
9127 /* TODO - handle other class related failures */
9134 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
9136 outer_klass = mono_class_get_generic_type_definition (outer_klass);
9137 inner_klass = mono_class_get_generic_type_definition (inner_klass);
9139 if (outer_klass == inner_klass)
9141 inner_klass = inner_klass->nested_in;
9142 } while (inner_klass);
9147 mono_class_get_generic_type_definition (MonoClass *klass)
9149 return klass->generic_class ? klass->generic_class->container_class : klass;
9153 * Check if @klass is a subtype of @parent ignoring generic instantiations.
9155 * Generic instantiations are ignored for all super types of @klass.
9157 * Visibility checks ignoring generic instantiations.
9160 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
9163 klass = mono_class_get_generic_type_definition (klass);
9164 parent = mono_class_get_generic_type_definition (parent);
9165 mono_class_setup_supertypes (klass);
9167 for (i = 0; i < klass->idepth; ++i) {
9168 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
9174 * Subtype can only access parent members with family protection if the site object
9175 * is subclass of Subtype. For example:
9176 * class A { protected int x; }
9178 * void valid_access () {
9182 * void invalid_access () {
9189 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
9191 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
9194 if (context_klass == NULL)
9196 /*if access_klass is not member_klass context_klass must be type compat*/
9197 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
9203 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
9206 if (accessing == accessed)
9208 if (!accessed || !accessing)
9211 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
9212 * anywhere so untrusted friends are not safe to access platform's code internals */
9213 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
9214 if (!mono_security_core_clr_can_access_internals (accessing->image, accessed->image))
9218 mono_assembly_load_friends (accessed);
9219 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
9220 MonoAssemblyName *friend = tmp->data;
9221 /* Be conservative with checks */
9224 if (strcmp (accessing->aname.name, friend->name))
9226 if (friend->public_key_token [0]) {
9227 if (!accessing->aname.public_key_token [0])
9229 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
9238 * If klass is a generic type or if it is derived from a generic type, return the
9239 * MonoClass of the generic definition
9240 * Returns NULL if not found
9243 get_generic_definition_class (MonoClass *klass)
9246 if (klass->generic_class && klass->generic_class->container_class)
9247 return klass->generic_class->container_class;
9248 klass = klass->parent;
9254 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
9257 for (i = 0; i < ginst->type_argc; ++i) {
9258 MonoType *type = ginst->type_argv[i];
9259 switch (type->type) {
9260 case MONO_TYPE_SZARRAY:
9261 if (!can_access_type (access_klass, type->data.klass))
9264 case MONO_TYPE_ARRAY:
9265 if (!can_access_type (access_klass, type->data.array->eklass))
9269 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
9272 case MONO_TYPE_CLASS:
9273 case MONO_TYPE_VALUETYPE:
9274 case MONO_TYPE_GENERICINST:
9275 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
9283 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
9287 if (access_klass->image->assembly && access_klass->image->assembly->corlib_internal)
9290 if (access_klass->element_class && !access_klass->enumtype)
9291 access_klass = access_klass->element_class;
9293 if (member_klass->element_class && !member_klass->enumtype)
9294 member_klass = member_klass->element_class;
9296 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
9298 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
9301 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
9304 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
9307 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
9310 /*Non nested type with nested visibility. We just fail it.*/
9311 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
9314 switch (access_level) {
9315 case TYPE_ATTRIBUTE_NOT_PUBLIC:
9316 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9318 case TYPE_ATTRIBUTE_PUBLIC:
9321 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
9324 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
9325 return is_nesting_type (member_klass, access_klass);
9327 case TYPE_ATTRIBUTE_NESTED_FAMILY:
9328 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9330 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
9331 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9333 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
9334 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
9335 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9337 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
9338 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
9339 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9344 /* FIXME: check visibility of type, too */
9346 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
9348 MonoClass *member_generic_def;
9349 if (access_klass->image->assembly && access_klass->image->assembly->corlib_internal)
9352 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
9353 access_klass->generic_container) &&
9354 (member_generic_def = get_generic_definition_class (member_klass))) {
9355 MonoClass *access_container;
9357 if (access_klass->generic_container)
9358 access_container = access_klass;
9360 access_container = access_klass->generic_class->container_class;
9362 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
9366 /* Partition I 8.5.3.2 */
9367 /* the access level values are the same for fields and methods */
9368 switch (access_level) {
9369 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
9370 /* same compilation unit */
9371 return access_klass->image == member_klass->image;
9372 case FIELD_ATTRIBUTE_PRIVATE:
9373 return access_klass == member_klass;
9374 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
9375 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
9376 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
9379 case FIELD_ATTRIBUTE_ASSEMBLY:
9380 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9381 case FIELD_ATTRIBUTE_FAMILY:
9382 if (is_valid_family_access (access_klass, member_klass, context_klass))
9385 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
9386 if (is_valid_family_access (access_klass, member_klass, context_klass))
9388 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9389 case FIELD_ATTRIBUTE_PUBLIC:
9396 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
9398 /* FIXME: check all overlapping fields */
9399 int can = can_access_member (method->klass, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9401 MonoClass *nested = method->klass->nested_in;
9403 can = can_access_member (nested, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9406 nested = nested->nested_in;
9413 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
9415 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9417 MonoClass *nested = method->klass->nested_in;
9419 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9422 nested = nested->nested_in;
9427 * with generics calls to explicit interface implementations can be expressed
9428 * directly: the method is private, but we must allow it. This may be opening
9429 * a hole or the generics code should handle this differently.
9430 * Maybe just ensure the interface type is public.
9432 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
9438 * mono_method_can_access_method_full:
9439 * @method: The caller method
9440 * @called: The called method
9441 * @context_klass: The static type on stack of the owner @called object used
9443 * This function must be used with instance calls, as they have more strict family accessibility.
9444 * It can be used with static methods, but context_klass should be NULL.
9446 * Returns: TRUE if caller have proper visibility and acessibility to @called
9449 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
9451 MonoClass *access_class = method->klass;
9452 MonoClass *member_class = called->klass;
9453 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9455 MonoClass *nested = access_class->nested_in;
9457 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9460 nested = nested->nested_in;
9467 can = can_access_type (access_class, member_class);
9469 MonoClass *nested = access_class->nested_in;
9471 can = can_access_type (nested, member_class);
9474 nested = nested->nested_in;
9481 if (called->is_inflated) {
9482 MonoMethodInflated * infl = (MonoMethodInflated*)called;
9483 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
9492 * mono_method_can_access_field_full:
9493 * @method: The caller method
9494 * @field: The accessed field
9495 * @context_klass: The static type on stack of the owner @field object used
9497 * This function must be used with instance fields, as they have more strict family accessibility.
9498 * It can be used with static fields, but context_klass should be NULL.
9500 * Returns: TRUE if caller have proper visibility and acessibility to @field
9503 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
9505 MonoClass *access_class = method->klass;
9506 MonoClass *member_class = field->parent;
9507 /* FIXME: check all overlapping fields */
9508 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9510 MonoClass *nested = access_class->nested_in;
9512 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9515 nested = nested->nested_in;
9522 can = can_access_type (access_class, member_class);
9524 MonoClass *nested = access_class->nested_in;
9526 can = can_access_type (nested, member_class);
9529 nested = nested->nested_in;
9539 * mono_type_is_valid_enum_basetype:
9540 * @type: The MonoType to check
9542 * Returns: TRUE if the type can be used as the basetype of an enum
9544 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
9545 switch (type->type) {
9548 case MONO_TYPE_BOOLEAN:
9551 case MONO_TYPE_CHAR:
9564 * mono_class_is_valid_enum:
9565 * @klass: An enum class to be validated
9567 * This method verify the required properties an enum should have.
9569 * Returns: TRUE if the informed enum class is valid
9571 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
9572 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
9573 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
9575 gboolean mono_class_is_valid_enum (MonoClass *klass) {
9576 MonoClassField * field;
9577 gpointer iter = NULL;
9578 gboolean found_base_field = FALSE;
9580 g_assert (klass->enumtype);
9581 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
9582 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
9586 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
9589 while ((field = mono_class_get_fields (klass, &iter))) {
9590 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
9591 if (found_base_field)
9593 found_base_field = TRUE;
9594 if (!mono_type_is_valid_enum_basetype (field->type))
9599 if (!found_base_field)
9602 if (klass->method.count > 0)
9609 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
9611 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
9615 * mono_class_setup_interface_id:
9617 * Initializes MonoClass::interface_id if required.
9619 * LOCKING: Acquires the loader lock.
9622 mono_class_setup_interface_id (MonoClass *class)
9624 mono_loader_lock ();
9625 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
9626 class->interface_id = mono_get_unique_iid (class);
9627 mono_loader_unlock ();
9631 * mono_class_alloc_ext:
9633 * Allocate klass->ext if not already done.
9634 * LOCKING: Assumes the loader lock is held.
9637 mono_class_alloc_ext (MonoClass *klass)
9640 klass->ext = mono_class_alloc0 (klass, sizeof (MonoClassExt));
9641 class_ext_size += sizeof (MonoClassExt);
9646 * mono_class_setup_interfaces:
9648 * Initialize class->interfaces/interfaces_count.
9649 * LOCKING: Acquires the loader lock.
9650 * This function can fail the type.
9653 mono_class_setup_interfaces (MonoClass *klass, MonoError *error)
9657 mono_error_init (error);
9659 if (klass->interfaces_inited)
9662 mono_loader_lock ();
9664 if (klass->interfaces_inited) {
9665 mono_loader_unlock ();
9669 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
9672 /* generic IList, ICollection, IEnumerable */
9673 klass->interface_count = 1;
9674 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
9676 args [0] = &klass->element_class->byval_arg;
9677 klass->interfaces [0] = mono_class_bind_generic_parameters (
9678 mono_defaults.generic_ilist_class, 1, args, FALSE);
9679 } else if (klass->generic_class) {
9680 MonoClass *gklass = klass->generic_class->container_class;
9682 klass->interface_count = gklass->interface_count;
9683 klass->interfaces = mono_class_new0 (klass, MonoClass *, klass->interface_count);
9684 for (i = 0; i < klass->interface_count; i++) {
9685 klass->interfaces [i] = mono_class_inflate_generic_class_checked (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class), error);
9686 if (!mono_error_ok (error)) {
9687 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not setup the interfaces"));
9688 klass->interfaces = NULL;
9694 mono_memory_barrier ();
9696 klass->interfaces_inited = TRUE;
9698 mono_loader_unlock ();
9702 mono_field_resolve_type (MonoClassField *field, MonoError *error)
9704 MonoClass *class = field->parent;
9705 MonoImage *image = class->image;
9706 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9707 int field_idx = field - class->fields;
9709 mono_error_init (error);
9712 MonoClassField *gfield = >d->fields [field_idx];
9713 MonoType *gtype = mono_field_get_type_checked (gfield, error);
9714 if (!mono_error_ok (error)) {
9715 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9716 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9720 field->type = mono_class_inflate_generic_type_no_copy (image, gtype, mono_class_get_context (class), error);
9721 if (!mono_error_ok (error)) {
9722 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9723 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9728 guint32 cols [MONO_FIELD_SIZE];
9729 MonoGenericContainer *container = NULL;
9730 int idx = class->field.first + field_idx;
9732 /*FIXME, in theory we do not lazy load SRE fields*/
9733 g_assert (!image->dynamic);
9735 if (class->generic_container) {
9736 container = class->generic_container;
9738 container = gtd->generic_container;
9739 g_assert (container);
9742 /* class->field.first and idx points into the fieldptr table */
9743 mono_metadata_decode_table_row (image, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
9745 if (!mono_verifier_verify_field_signature (image, cols [MONO_FIELD_SIGNATURE], NULL)) {
9746 mono_error_set_type_load_class (error, class, "Could not verify field %s signature", field->name);
9747 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9751 sig = mono_metadata_blob_heap (image, cols [MONO_FIELD_SIGNATURE]);
9753 mono_metadata_decode_value (sig, &sig);
9754 /* FIELD signature == 0x06 */
9755 g_assert (*sig == 0x06);
9756 field->type = mono_metadata_parse_type_full (image, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
9758 mono_error_set_type_load_class (error, class, "Could not load field %s type", field->name);
9759 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9760 mono_loader_clear_error ();
9766 mono_field_resolve_flags (MonoClassField *field)
9768 MonoClass *class = field->parent;
9769 MonoImage *image = class->image;
9770 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9771 int field_idx = field - class->fields;
9775 MonoClassField *gfield = >d->fields [field_idx];
9776 return mono_field_get_flags (gfield);
9778 int idx = class->field.first + field_idx;
9780 /*FIXME, in theory we do not lazy load SRE fields*/
9781 g_assert (!image->dynamic);
9783 return mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_FLAGS);
9788 * mono_class_setup_basic_field_info:
9789 * @class: The class to initialize
9791 * Initializes the class->fields array of fields.
9792 * Aquires the loader lock.
9795 mono_class_setup_basic_field_info_locking (MonoClass *class)
9797 mono_loader_lock ();
9798 mono_class_setup_basic_field_info (class);
9799 mono_loader_unlock ();
9803 * mono_class_get_fields_lazy:
9804 * @klass: the MonoClass to act on
9806 * This routine is an iterator routine for retrieving the fields in a class.
9807 * Only minimal information about fields are loaded. Accessors must be used
9808 * for all MonoClassField returned.
9810 * You must pass a gpointer that points to zero and is treated as an opaque handle to
9811 * iterate over all of the elements. When no more values are
9812 * available, the return value is NULL.
9814 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
9817 mono_class_get_fields_lazy (MonoClass* klass, gpointer *iter)
9819 MonoClassField* field;
9823 mono_class_setup_basic_field_info_locking (klass);
9826 /* start from the first */
9827 if (klass->field.count) {
9828 return *iter = &klass->fields [0];
9836 if (field < &klass->fields [klass->field.count]) {
9837 return *iter = field;