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 g_assert ((packing_size & 0xfffffff0) == 0);
1392 class->packing_size = packing_size;
1393 real_size += class->instance_size;
1397 if (explicit_size && real_size) {
1398 class->instance_size = MAX (real_size, class->instance_size);
1400 class->size_inited = 1;
1401 class->blittable = blittable;
1405 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1408 /* Prevent infinite loops if the class references itself */
1409 class->size_inited = 1;
1411 if (class->generic_container) {
1412 container = class->generic_container;
1414 container = gtd->generic_container;
1415 g_assert (container);
1419 * Fetch all the field information.
1421 for (i = 0; i < top; i++){
1422 int idx = class->field.first + i;
1423 field = &class->fields [i];
1425 field->parent = class;
1428 mono_field_resolve_type (field, &error);
1429 if (!mono_error_ok (&error)) {
1430 /*mono_field_resolve_type already failed class*/
1431 mono_error_cleanup (&error);
1435 g_error ("could not resolve %s:%s\n", mono_type_get_full_name(class), field->name);
1436 g_assert (field->type);
1439 if (mono_field_is_deleted (field))
1442 MonoClassField *gfield = >d->fields [i];
1443 field->offset = gfield->offset;
1445 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1447 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1448 field->offset = offset;
1450 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1451 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Missing field layout info for %s", field->name));
1454 if (field->offset < -1) { /*-1 is used to encode special static fields */
1455 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Invalid negative field offset %d for %s", field->offset, field->name));
1461 /* Only do these checks if we still think this type is blittable */
1462 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1463 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1466 MonoClass *field_class = mono_class_from_mono_type (field->type);
1468 mono_class_setup_fields (field_class);
1469 if (field_class->exception_type) {
1470 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1474 if (!field_class || !field_class->blittable)
1479 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1480 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1481 blittable = class->element_class->blittable;
1484 if (mono_type_has_exceptions (field->type)) {
1485 char *class_name = mono_type_get_full_name (class);
1486 char *type_name = mono_type_full_name (field->type);
1488 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1489 g_warning ("Invalid type %s for instance field %s:%s", type_name, class_name, field->name);
1490 g_free (class_name);
1494 /* The def_value of fields is compute lazily during vtable creation */
1497 if (class == mono_defaults.string_class)
1500 class->blittable = blittable;
1502 if (class->enumtype && !mono_class_enum_basetype (class)) {
1503 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1506 if (explicit_size && real_size) {
1507 class->instance_size = MAX (real_size, class->instance_size);
1510 if (class->exception_type)
1512 mono_class_layout_fields (class);
1514 /*valuetypes can't be neither bigger than 1Mb or empty. */
1515 if (class->valuetype && (class->instance_size <= 0 || class->instance_size > (0x100000 + sizeof (MonoObject))))
1516 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1520 * mono_class_setup_fields_locking:
1521 * @class: The class to initialize
1523 * Initializes the class->fields array of fields.
1524 * Aquires the loader lock.
1527 mono_class_setup_fields_locking (MonoClass *class)
1529 mono_loader_lock ();
1530 mono_class_setup_fields (class);
1531 mono_loader_unlock ();
1535 * mono_class_has_references:
1537 * Returns whenever @klass->has_references is set, initializing it if needed.
1538 * Aquires the loader lock.
1541 mono_class_has_references (MonoClass *klass)
1543 if (klass->init_pending) {
1544 /* Be conservative */
1547 mono_class_init (klass);
1549 return klass->has_references;
1554 * mono_type_get_basic_type_from_generic:
1557 * Returns a closed type corresponding to the possibly open type
1561 mono_type_get_basic_type_from_generic (MonoType *type)
1563 /* When we do generic sharing we let type variables stand for reference types. */
1564 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1565 return &mono_defaults.object_class->byval_arg;
1570 * mono_class_layout_fields:
1573 * Compute the placement of fields inside an object or struct, according to
1574 * the layout rules and set the following fields in @class:
1575 * - has_references (if the class contains instance references firled or structs that contain references)
1576 * - has_static_refs (same, but for static fields)
1577 * - instance_size (size of the object in memory)
1578 * - class_size (size needed for the static fields)
1579 * - size_inited (flag set when the instance_size is set)
1581 * LOCKING: this is supposed to be called with the loader lock held.
1584 mono_class_layout_fields (MonoClass *class)
1587 const int top = class->field.count;
1588 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1589 guint32 pass, passes, real_size;
1590 gboolean gc_aware_layout = FALSE;
1591 MonoClassField *field;
1594 * When we do generic sharing we need to have layout
1595 * information for open generic classes (either with a generic
1596 * context containing type variables or with a generic
1597 * container), so we don't return in that case anymore.
1601 * Enable GC aware auto layout: in this mode, reference
1602 * fields are grouped together inside objects, increasing collector
1604 * Requires that all classes whose layout is known to native code be annotated
1605 * with [StructLayout (LayoutKind.Sequential)]
1606 * Value types have gc_aware_layout disabled by default, as per
1607 * what the default is for other runtimes.
1609 /* corlib is missing [StructLayout] directives in many places */
1610 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1611 if (class->byval_arg.type != MONO_TYPE_VALUETYPE)
1612 gc_aware_layout = TRUE;
1615 /* Compute klass->has_references */
1617 * Process non-static fields first, since static fields might recursively
1618 * refer to the class itself.
1620 for (i = 0; i < top; i++) {
1623 field = &class->fields [i];
1625 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1626 ftype = mono_type_get_underlying_type (field->type);
1627 ftype = mono_type_get_basic_type_from_generic (ftype);
1628 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1629 class->has_references = TRUE;
1633 for (i = 0; i < top; i++) {
1636 field = &class->fields [i];
1638 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1639 ftype = mono_type_get_underlying_type (field->type);
1640 ftype = mono_type_get_basic_type_from_generic (ftype);
1641 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1642 class->has_static_refs = TRUE;
1646 for (i = 0; i < top; i++) {
1649 field = &class->fields [i];
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 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1655 class->has_static_refs = TRUE;
1657 class->has_references = TRUE;
1662 * Compute field layout and total size (not considering static fields)
1666 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1667 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1669 if (gc_aware_layout)
1674 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1677 if (class->parent) {
1678 mono_class_setup_fields (class->parent);
1679 if (class->parent->exception_type) {
1680 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1683 real_size = class->parent->instance_size;
1685 real_size = sizeof (MonoObject);
1688 for (pass = 0; pass < passes; ++pass) {
1689 for (i = 0; i < top; i++){
1694 field = &class->fields [i];
1696 if (mono_field_is_deleted (field))
1698 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1701 ftype = mono_type_get_underlying_type (field->type);
1702 ftype = mono_type_get_basic_type_from_generic (ftype);
1703 if (gc_aware_layout) {
1704 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1713 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1714 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1715 /* This field is a hack inserted by MCS to empty structures */
1719 size = mono_type_size (field->type, &align);
1721 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1722 align = class->packing_size ? MIN (class->packing_size, align): align;
1723 /* if the field has managed references, we need to force-align it
1726 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1727 align = MAX (align, sizeof (gpointer));
1729 class->min_align = MAX (align, class->min_align);
1730 field->offset = real_size;
1732 field->offset += align - 1;
1733 field->offset &= ~(align - 1);
1735 /*TypeBuilders produce all sort of weird things*/
1736 g_assert (class->image->dynamic || field->offset > 0);
1737 real_size = field->offset + size;
1740 class->instance_size = MAX (real_size, class->instance_size);
1742 if (class->instance_size & (class->min_align - 1)) {
1743 class->instance_size += class->min_align - 1;
1744 class->instance_size &= ~(class->min_align - 1);
1748 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1750 for (i = 0; i < top; i++) {
1755 field = &class->fields [i];
1758 * There must be info about all the fields in a type if it
1759 * uses explicit layout.
1762 if (mono_field_is_deleted (field))
1764 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1767 size = mono_type_size (field->type, &align);
1768 class->min_align = MAX (align, class->min_align);
1771 * When we get here, field->offset is already set by the
1772 * loader (for either runtime fields or fields loaded from metadata).
1773 * The offset is from the start of the object: this works for both
1774 * classes and valuetypes.
1776 field->offset += sizeof (MonoObject);
1777 ftype = mono_type_get_underlying_type (field->type);
1778 ftype = mono_type_get_basic_type_from_generic (ftype);
1779 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1780 if (field->offset % sizeof (gpointer)) {
1781 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1788 real_size = MAX (real_size, size + field->offset);
1790 class->instance_size = MAX (real_size, class->instance_size);
1794 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1796 * For small structs, set min_align to at least the struct size to improve
1797 * performance, and since the JIT memset/memcpy code assumes this and generates
1798 * unaligned accesses otherwise. See #78990 for a testcase.
1800 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1801 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1804 class->size_inited = 1;
1807 * Compute static field layout and size
1809 for (i = 0; i < top; i++){
1813 field = &class->fields [i];
1815 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1817 if (mono_field_is_deleted (field))
1820 if (mono_type_has_exceptions (field->type)) {
1821 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1825 size = mono_type_size (field->type, &align);
1826 field->offset = class->sizes.class_size;
1827 /*align is always non-zero here*/
1828 field->offset += align - 1;
1829 field->offset &= ~(align - 1);
1830 class->sizes.class_size = field->offset + size;
1835 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1839 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1840 method->klass = class;
1841 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1842 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1843 method->signature = sig;
1844 method->name = name;
1847 if (name [0] == '.') {
1848 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1850 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1856 * mono_class_setup_methods:
1859 * Initializes the 'methods' array in the klass.
1860 * Calling this method should be avoided if possible since it allocates a lot
1861 * of long-living MonoMethod structures.
1862 * Methods belonging to an interface are assigned a sequential slot starting
1865 * On failure this function sets class->exception_type
1868 mono_class_setup_methods (MonoClass *class)
1871 MonoMethod **methods;
1876 mono_loader_lock ();
1878 if (class->methods) {
1879 mono_loader_unlock ();
1883 if (class->generic_class) {
1885 MonoClass *gklass = class->generic_class->container_class;
1887 mono_class_init (gklass);
1888 if (!gklass->exception_type)
1889 mono_class_setup_methods (gklass);
1890 if (gklass->exception_type) {
1891 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1892 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
1893 mono_loader_unlock ();
1897 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1898 class->method.count = gklass->method.count;
1899 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * (class->method.count + 1));
1901 for (i = 0; i < class->method.count; i++) {
1902 methods [i] = mono_class_inflate_generic_method_full_checked (
1903 gklass->methods [i], class, mono_class_get_context (class), &error);
1904 if (!mono_error_ok (&error)) {
1905 char *method = mono_method_full_name (gklass->methods [i], TRUE);
1906 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)));
1909 mono_error_cleanup (&error);
1910 mono_loader_unlock ();
1914 } else if (class->rank) {
1916 MonoMethod *amethod;
1917 MonoMethodSignature *sig;
1918 int count_generic = 0, first_generic = 0;
1921 class->method.count = 3 + (class->rank > 1? 2: 1);
1923 mono_class_setup_interfaces (class, &error);
1924 g_assert (mono_error_ok (&error)); /*FIXME can this fail for array types?*/
1926 if (class->interface_count) {
1927 count_generic = generic_array_methods (class);
1928 first_generic = class->method.count;
1929 class->method.count += class->interface_count * count_generic;
1932 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * class->method.count);
1934 sig = mono_metadata_signature_alloc (class->image, class->rank);
1935 sig->ret = &mono_defaults.void_class->byval_arg;
1936 sig->pinvoke = TRUE;
1937 sig->hasthis = TRUE;
1938 for (i = 0; i < class->rank; ++i)
1939 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1941 amethod = create_array_method (class, ".ctor", sig);
1942 methods [method_num++] = amethod;
1943 if (class->rank > 1) {
1944 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1945 sig->ret = &mono_defaults.void_class->byval_arg;
1946 sig->pinvoke = TRUE;
1947 sig->hasthis = TRUE;
1948 for (i = 0; i < class->rank * 2; ++i)
1949 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1951 amethod = create_array_method (class, ".ctor", sig);
1952 methods [method_num++] = amethod;
1954 /* element Get (idx11, [idx2, ...]) */
1955 sig = mono_metadata_signature_alloc (class->image, class->rank);
1956 sig->ret = &class->element_class->byval_arg;
1957 sig->pinvoke = TRUE;
1958 sig->hasthis = TRUE;
1959 for (i = 0; i < class->rank; ++i)
1960 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1961 amethod = create_array_method (class, "Get", sig);
1962 methods [method_num++] = amethod;
1963 /* element& Address (idx11, [idx2, ...]) */
1964 sig = mono_metadata_signature_alloc (class->image, class->rank);
1965 sig->ret = &class->element_class->this_arg;
1966 sig->pinvoke = TRUE;
1967 sig->hasthis = TRUE;
1968 for (i = 0; i < class->rank; ++i)
1969 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1970 amethod = create_array_method (class, "Address", sig);
1971 methods [method_num++] = amethod;
1972 /* void Set (idx11, [idx2, ...], element) */
1973 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1974 sig->ret = &mono_defaults.void_class->byval_arg;
1975 sig->pinvoke = TRUE;
1976 sig->hasthis = TRUE;
1977 for (i = 0; i < class->rank; ++i)
1978 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1979 sig->params [i] = &class->element_class->byval_arg;
1980 amethod = create_array_method (class, "Set", sig);
1981 methods [method_num++] = amethod;
1983 for (i = 0; i < class->interface_count; i++)
1984 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1986 methods = mono_class_alloc (class, sizeof (MonoMethod*) * class->method.count);
1987 for (i = 0; i < class->method.count; ++i) {
1988 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1989 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1993 if (MONO_CLASS_IS_INTERFACE (class)) {
1995 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
1996 for (i = 0; i < class->method.count; ++i) {
1997 if (methods [i]->flags & METHOD_ATTRIBUTE_VIRTUAL)
1998 methods [i]->slot = slot++;
2002 /* Needed because of the double-checking locking pattern */
2003 mono_memory_barrier ();
2005 class->methods = methods;
2007 if (mono_debugger_class_loaded_methods_func)
2008 mono_debugger_class_loaded_methods_func (class);
2010 mono_loader_unlock ();
2014 * mono_class_get_method_by_index:
2016 * Returns class->methods [index], initializing class->methods if neccesary.
2018 * LOCKING: Acquires the loader lock.
2021 mono_class_get_method_by_index (MonoClass *class, int index)
2023 /* Avoid calling setup_methods () if possible */
2024 if (class->generic_class && !class->methods) {
2025 MonoClass *gklass = class->generic_class->container_class;
2028 m = mono_class_inflate_generic_method_full (
2029 gklass->methods [index], class, mono_class_get_context (class));
2031 * If setup_methods () is called later for this class, no duplicates are created,
2032 * since inflate_generic_method guarantees that only one instance of a method
2033 * is created for each context.
2036 mono_class_setup_methods (class);
2037 g_assert (m == class->methods [index]);
2041 mono_class_setup_methods (class);
2042 if (class->exception_type) /*FIXME do proper error handling*/
2044 g_assert (index >= 0 && index < class->method.count);
2045 return class->methods [index];
2050 * mono_class_get_inflated_method:
2052 * Given an inflated class CLASS and a method METHOD which should be a method of
2053 * CLASS's generic definition, return the inflated method corresponding to METHOD.
2056 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
2058 MonoClass *gklass = class->generic_class->container_class;
2061 g_assert (method->klass == gklass);
2063 mono_class_setup_methods (gklass);
2064 g_assert (!gklass->exception_type); /*FIXME do proper error handling*/
2066 for (i = 0; i < gklass->method.count; ++i) {
2067 if (gklass->methods [i] == method) {
2069 return class->methods [i];
2071 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
2079 * mono_class_get_vtable_entry:
2081 * Returns class->vtable [offset], computing it if neccesary. Returns NULL on failure.
2082 * LOCKING: Acquires the loader lock.
2085 mono_class_get_vtable_entry (MonoClass *class, int offset)
2089 if (class->rank == 1) {
2091 * szarrays do not overwrite any methods of Array, so we can avoid
2092 * initializing their vtables in some cases.
2094 mono_class_setup_vtable (class->parent);
2095 if (offset < class->parent->vtable_size)
2096 return class->parent->vtable [offset];
2099 if (class->generic_class) {
2100 MonoClass *gklass = class->generic_class->container_class;
2101 mono_class_setup_vtable (gklass);
2102 m = gklass->vtable [offset];
2104 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
2106 mono_class_setup_vtable (class);
2107 if (class->exception_type)
2109 m = class->vtable [offset];
2116 * mono_class_get_vtable_size:
2118 * Return the vtable size for KLASS.
2121 mono_class_get_vtable_size (MonoClass *klass)
2123 mono_class_setup_vtable (klass);
2125 return klass->vtable_size;
2128 /*This method can fail the class.*/
2130 mono_class_setup_properties (MonoClass *class)
2132 guint startm, endm, i, j;
2133 guint32 cols [MONO_PROPERTY_SIZE];
2134 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2135 MonoProperty *properties;
2138 if (class->ext && class->ext->properties)
2141 mono_loader_lock ();
2143 if (class->ext && class->ext->properties) {
2144 mono_loader_unlock ();
2148 mono_class_alloc_ext (class);
2150 if (class->generic_class) {
2151 MonoClass *gklass = class->generic_class->container_class;
2153 mono_class_init (gklass);
2154 mono_class_setup_properties (gklass);
2155 if (gklass->exception_type) {
2156 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2157 mono_loader_unlock ();
2161 class->ext->property = gklass->ext->property;
2163 properties = mono_class_new0 (class, MonoProperty, class->ext->property.count + 1);
2165 for (i = 0; i < class->ext->property.count; i++) {
2166 MonoProperty *prop = &properties [i];
2168 *prop = gklass->ext->properties [i];
2171 prop->get = mono_class_inflate_generic_method_full (
2172 prop->get, class, mono_class_get_context (class));
2174 prop->set = mono_class_inflate_generic_method_full (
2175 prop->set, class, mono_class_get_context (class));
2177 prop->parent = class;
2180 int first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2181 int count = last - first;
2184 mono_class_setup_methods (class);
2185 if (class->exception_type) {
2186 mono_loader_unlock ();
2191 class->ext->property.first = first;
2192 class->ext->property.count = count;
2193 properties = mono_class_alloc0 (class, sizeof (MonoProperty) * count);
2194 for (i = first; i < last; ++i) {
2195 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
2196 properties [i - first].parent = class;
2197 properties [i - first].attrs = cols [MONO_PROPERTY_FLAGS];
2198 properties [i - first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
2200 startm = mono_metadata_methods_from_property (class->image, i, &endm);
2201 for (j = startm; j < endm; ++j) {
2204 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2206 if (class->image->uncompressed_metadata)
2207 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2208 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2210 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2212 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2213 case METHOD_SEMANTIC_SETTER:
2214 properties [i - first].set = method;
2216 case METHOD_SEMANTIC_GETTER:
2217 properties [i - first].get = method;
2225 /*Flush any pending writes as we do double checked locking on class->properties */
2226 mono_memory_barrier ();
2228 /* Leave this assignment as the last op in the function */
2229 class->ext->properties = properties;
2231 mono_loader_unlock ();
2235 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
2237 MonoMethod **om, **retval;
2240 for (om = methods, count = 0; *om; ++om, ++count)
2243 retval = g_new0 (MonoMethod*, count + 1);
2245 for (om = methods, count = 0; *om; ++om, ++count)
2246 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
2251 /*This method can fail the class.*/
2253 mono_class_setup_events (MonoClass *class)
2256 guint startm, endm, i, j;
2257 guint32 cols [MONO_EVENT_SIZE];
2258 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2262 if (class->ext && class->ext->events)
2265 mono_loader_lock ();
2267 if (class->ext && class->ext->events) {
2268 mono_loader_unlock ();
2272 mono_class_alloc_ext (class);
2274 if (class->generic_class) {
2275 MonoClass *gklass = class->generic_class->container_class;
2276 MonoGenericContext *context;
2278 mono_class_setup_events (gklass);
2279 if (gklass->exception_type) {
2280 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2281 mono_loader_unlock ();
2285 class->ext->event = gklass->ext->event;
2286 class->ext->events = mono_class_new0 (class, MonoEvent, class->ext->event.count);
2288 if (class->ext->event.count)
2289 context = mono_class_get_context (class);
2291 for (i = 0; i < class->ext->event.count; i++) {
2292 MonoEvent *event = &class->ext->events [i];
2293 MonoEvent *gevent = &gklass->ext->events [i];
2295 event->parent = class;
2296 event->name = gevent->name;
2297 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2298 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2299 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2300 #ifndef MONO_SMALL_CONFIG
2301 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2303 event->attrs = gevent->attrs;
2306 mono_loader_unlock ();
2310 first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2311 count = last - first;
2314 mono_class_setup_methods (class);
2315 if (class->exception_type) {
2316 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2317 mono_loader_unlock ();
2321 class->ext->event.first = first;
2322 class->ext->event.count = count;
2323 events = mono_class_alloc0 (class, sizeof (MonoEvent) * class->ext->event.count);
2324 for (i = first; i < last; ++i) {
2325 MonoEvent *event = &events [i - first];
2327 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2328 event->parent = class;
2329 event->attrs = cols [MONO_EVENT_FLAGS];
2330 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2332 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2333 for (j = startm; j < endm; ++j) {
2336 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2338 if (class->image->uncompressed_metadata)
2339 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2340 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2342 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2344 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2345 case METHOD_SEMANTIC_ADD_ON:
2346 event->add = method;
2348 case METHOD_SEMANTIC_REMOVE_ON:
2349 event->remove = method;
2351 case METHOD_SEMANTIC_FIRE:
2352 event->raise = method;
2354 case METHOD_SEMANTIC_OTHER: {
2355 #ifndef MONO_SMALL_CONFIG
2358 if (event->other == NULL) {
2359 event->other = g_new0 (MonoMethod*, 2);
2361 while (event->other [n])
2363 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2365 event->other [n] = method;
2366 /* NULL terminated */
2367 event->other [n + 1] = NULL;
2376 /*Flush any pending writes as we do double checked locking on class->properties */
2377 mono_memory_barrier ();
2379 /* Leave this assignment as the last op in the function */
2380 class->ext->events = events;
2382 mono_loader_unlock ();
2386 * Global pool of interface IDs, represented as a bitset.
2387 * LOCKING: this is supposed to be accessed with the loader lock held.
2389 static MonoBitSet *global_interface_bitset = NULL;
2392 * mono_unload_interface_ids:
2393 * @bitset: bit set of interface IDs
2395 * When an image is unloaded, the interface IDs associated with
2396 * the image are put back in the global pool of IDs so the numbers
2400 mono_unload_interface_ids (MonoBitSet *bitset)
2402 mono_loader_lock ();
2403 mono_bitset_sub (global_interface_bitset, bitset);
2404 mono_loader_unlock ();
2408 mono_unload_interface_id (MonoClass *class)
2410 if (class->interface_id) {
2411 mono_loader_lock ();
2412 mono_bitset_clear (global_interface_bitset, class->interface_id);
2413 mono_loader_unlock ();
2418 * mono_get_unique_iid:
2421 * Assign a unique integer ID to the interface represented by @class.
2422 * The ID will positive and as small as possible.
2423 * LOCKING: this is supposed to be called with the loader lock held.
2424 * Returns: the new ID.
2427 mono_get_unique_iid (MonoClass *class)
2431 g_assert (MONO_CLASS_IS_INTERFACE (class));
2433 if (!global_interface_bitset) {
2434 global_interface_bitset = mono_bitset_new (128, 0);
2437 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2439 int old_size = mono_bitset_size (global_interface_bitset);
2440 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2441 mono_bitset_free (global_interface_bitset);
2442 global_interface_bitset = new_set;
2445 mono_bitset_set (global_interface_bitset, iid);
2446 /* set the bit also in the per-image set */
2447 if (!class->generic_class) {
2448 if (class->image->interface_bitset) {
2449 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2450 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2451 mono_bitset_free (class->image->interface_bitset);
2452 class->image->interface_bitset = new_set;
2455 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2457 mono_bitset_set (class->image->interface_bitset, iid);
2460 #ifndef MONO_SMALL_CONFIG
2461 if (mono_print_vtable) {
2463 char *type_name = mono_type_full_name (&class->byval_arg);
2464 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2465 generic_id = class->generic_class->context.class_inst->id;
2466 g_assert (generic_id != 0);
2470 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2475 g_assert (iid <= 65535);
2480 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res, MonoError *error)
2485 mono_class_setup_interfaces (klass, error);
2486 if (!mono_error_ok (error))
2489 for (i = 0; i < klass->interface_count; i++) {
2490 ic = klass->interfaces [i];
2493 *res = g_ptr_array_new ();
2494 g_ptr_array_add (*res, ic);
2495 mono_class_init (ic);
2496 if (ic->exception_type) {
2497 mono_error_set_type_load_class (error, ic, "Error Loading class");
2501 collect_implemented_interfaces_aux (ic, res, error);
2502 if (!mono_error_ok (error))
2508 mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error)
2510 GPtrArray *res = NULL;
2512 collect_implemented_interfaces_aux (klass, &res, error);
2513 if (!mono_error_ok (error)) {
2515 g_ptr_array_free (res, TRUE);
2522 compare_interface_ids (const void *p_key, const void *p_element) {
2523 const MonoClass *key = p_key;
2524 const MonoClass *element = *(MonoClass**) p_element;
2526 return (key->interface_id - element->interface_id);
2529 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2531 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2532 MonoClass **result = bsearch (
2534 klass->interfaces_packed,
2535 klass->interface_offsets_count,
2536 sizeof (MonoClass *),
2537 compare_interface_ids);
2539 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2546 * mono_class_interface_offset_with_variance:
2548 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2549 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2551 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2553 * FIXME figure out MS disambiguation rules and fix this function.
2556 mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match) {
2557 int i = mono_class_interface_offset (klass, itf);
2558 *non_exact_match = FALSE;
2562 if (!mono_class_has_variant_generic_params (itf))
2565 for (i = 0; i < klass->interface_offsets_count; i++) {
2566 if (mono_class_is_variant_compatible (itf, klass->interfaces_packed [i], FALSE)) {
2567 *non_exact_match = TRUE;
2568 return klass->interface_offsets_packed [i];
2576 print_implemented_interfaces (MonoClass *klass) {
2579 GPtrArray *ifaces = NULL;
2581 int ancestor_level = 0;
2583 name = mono_type_get_full_name (klass);
2584 printf ("Packed interface table for class %s has size %d\n", name, klass->interface_offsets_count);
2587 for (i = 0; i < klass->interface_offsets_count; i++)
2588 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2589 klass->interfaces_packed [i]->interface_id,
2590 klass->interface_offsets_packed [i],
2591 klass->interfaces_packed [i]->method.count,
2592 klass->interfaces_packed [i]->name_space,
2593 klass->interfaces_packed [i]->name );
2594 printf ("Interface flags: ");
2595 for (i = 0; i <= klass->max_interface_id; i++)
2596 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2597 printf ("(%d,T)", i);
2599 printf ("(%d,F)", i);
2601 printf ("Dump interface flags:");
2602 #ifdef COMPRESSED_INTERFACE_BITMAP
2604 const uint8_t* p = klass->interface_bitmap;
2605 i = klass->max_interface_id;
2607 printf (" %d x 00 %02X", p [0], p [1]);
2613 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2614 printf (" %02X", klass->interface_bitmap [i]);
2617 while (klass != NULL) {
2618 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2619 ifaces = mono_class_get_implemented_interfaces (klass, &error);
2620 if (!mono_error_ok (&error)) {
2621 printf (" Type failed due to %s\n", mono_error_get_message (&error));
2622 mono_error_cleanup (&error);
2623 } else if (ifaces) {
2624 for (i = 0; i < ifaces->len; i++) {
2625 MonoClass *ic = g_ptr_array_index (ifaces, i);
2626 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2627 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2629 mono_class_interface_offset (klass, ic),
2634 g_ptr_array_free (ifaces, TRUE);
2637 klass = klass->parent;
2642 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2645 args [0] = &arg0->byval_arg;
2647 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2651 array_class_get_if_rank (MonoClass *class, guint rank)
2653 return rank ? mono_array_class_get (class, rank) : class;
2657 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2659 valuetype_types [0] = eclass;
2660 if (eclass == mono_defaults.int16_class)
2661 valuetype_types [1] = mono_defaults.uint16_class;
2662 else if (eclass == mono_defaults.uint16_class)
2663 valuetype_types [1] = mono_defaults.int16_class;
2664 else if (eclass == mono_defaults.int32_class)
2665 valuetype_types [1] = mono_defaults.uint32_class;
2666 else if (eclass == mono_defaults.uint32_class)
2667 valuetype_types [1] = mono_defaults.int32_class;
2668 else if (eclass == mono_defaults.int64_class)
2669 valuetype_types [1] = mono_defaults.uint64_class;
2670 else if (eclass == mono_defaults.uint64_class)
2671 valuetype_types [1] = mono_defaults.int64_class;
2672 else if (eclass == mono_defaults.byte_class)
2673 valuetype_types [1] = mono_defaults.sbyte_class;
2674 else if (eclass == mono_defaults.sbyte_class)
2675 valuetype_types [1] = mono_defaults.byte_class;
2676 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2677 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2680 /* this won't be needed once bug #325495 is completely fixed
2681 * though we'll need something similar to know which interfaces to allow
2682 * in arrays when they'll be lazyly created
2684 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2685 * MS returns diferrent types based on which instance is called. For example:
2686 * object obj = new byte[10][];
2687 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2688 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2691 * Fixing this should kill quite some code, save some bits and improve compatibility.
2694 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2696 MonoClass *eclass = class->element_class;
2697 static MonoClass* generic_icollection_class = NULL;
2698 static MonoClass* generic_ienumerable_class = NULL;
2699 static MonoClass* generic_ienumerator_class = NULL;
2700 MonoClass *valuetype_types[2] = { NULL, NULL };
2701 MonoClass **interfaces = NULL;
2702 int i, interface_count, real_count, original_rank;
2704 gboolean internal_enumerator;
2705 gboolean eclass_is_valuetype;
2707 if (!mono_defaults.generic_ilist_class) {
2711 internal_enumerator = FALSE;
2712 eclass_is_valuetype = FALSE;
2713 original_rank = eclass->rank;
2714 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2715 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2717 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2719 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2720 original_rank = eclass->rank;
2721 eclass = eclass->element_class;
2722 internal_enumerator = TRUE;
2723 *is_enumerator = TRUE;
2731 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2732 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2734 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2736 if (!generic_icollection_class) {
2737 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2738 "System.Collections.Generic", "ICollection`1");
2739 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2740 "System.Collections.Generic", "IEnumerable`1");
2741 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2742 "System.Collections.Generic", "IEnumerator`1");
2745 mono_class_init (eclass);
2748 * Arrays in 2.0 need to implement a number of generic interfaces
2749 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2750 * on the element class). We collect the types needed to build the
2751 * instantiations in interfaces at intervals of 3, because 3 are
2752 * the generic interfaces needed to implement.
2754 if (eclass->valuetype) {
2755 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2757 /* IList, ICollection, IEnumerable */
2758 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2759 if (internal_enumerator) {
2761 if (valuetype_types [1])
2765 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2766 interfaces [0] = valuetype_types [0];
2767 if (valuetype_types [1])
2768 interfaces [3] = valuetype_types [1];
2770 eclass_is_valuetype = TRUE;
2773 int idepth = eclass->idepth;
2774 if (!internal_enumerator)
2777 // FIXME: This doesn't seem to work/required for generic params
2778 if (!(eclass->this_arg.type == MONO_TYPE_VAR || eclass->this_arg.type == MONO_TYPE_MVAR || (eclass->image->dynamic && !eclass->wastypebuilder)))
2779 mono_class_setup_interface_offsets (eclass);
2781 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2782 /* we add object for interfaces and the supertypes for the other
2783 * types. The last of the supertypes is the element class itself which we
2784 * already created the explicit interfaces for (so we include it for IEnumerator
2785 * and exclude it for arrays).
2787 if (MONO_CLASS_IS_INTERFACE (eclass))
2790 interface_count += idepth;
2791 if (eclass->rank && eclass->element_class->valuetype) {
2792 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2793 if (valuetype_types [1])
2796 /* IList, ICollection, IEnumerable */
2797 interface_count *= 3;
2798 real_count = interface_count;
2799 if (internal_enumerator) {
2800 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2801 if (valuetype_types [1])
2804 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2805 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2806 interfaces [0] = mono_defaults.object_class;
2810 for (i = 0; i < idepth; i++) {
2811 mono_class_init (eclass->supertypes [i]);
2812 interfaces [j] = eclass->supertypes [i];
2816 if (all_interfaces) {
2817 for (i = 0; i < eclass->interface_offsets_count; i++) {
2818 interfaces [j] = eclass->interfaces_packed [i];
2822 for (i = 0; i < eclass->interface_count; i++) {
2823 interfaces [j] = eclass->interfaces [i];
2827 if (valuetype_types [1]) {
2828 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2833 /* instantiate the generic interfaces */
2834 for (i = 0; i < interface_count; i += 3) {
2835 MonoClass *iface = interfaces [i];
2837 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2838 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2839 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2841 if (internal_enumerator) {
2843 /* instantiate IEnumerator<iface> */
2844 for (i = 0; i < interface_count; i++) {
2845 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2847 j = interface_count;
2848 if (!eclass_is_valuetype) {
2849 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2850 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2853 for (i = 0; i < eclass->idepth; i++) {
2854 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2858 for (i = 0; i < eclass->interface_offsets_count; i++) {
2859 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2863 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2865 if (valuetype_types [1])
2866 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2870 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2871 for (i = 0; i < real_count; ++i) {
2872 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2873 g_print ("%s implements %s\n", type_name, name);
2884 find_array_interface (MonoClass *klass, const char *name)
2887 for (i = 0; i < klass->interface_count; ++i) {
2888 if (strcmp (klass->interfaces [i]->name, name) == 0)
2895 * Return the number of virtual methods.
2896 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2897 * Return -1 on failure.
2898 * FIXME It would be nice if this information could be cached somewhere.
2901 count_virtual_methods (MonoClass *class)
2905 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2907 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2908 mono_class_setup_methods (class);
2909 if (class->exception_type)
2912 for (i = 0; i < class->method.count; ++i) {
2913 flags = class->methods [i]->flags;
2914 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2918 for (i = 0; i < class->method.count; ++i) {
2919 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2921 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2929 find_interface (int num_ifaces, MonoClass **interfaces_full, MonoClass *ic)
2937 m = (l + num_ifaces) / 2;
2938 if (interfaces_full [m] == ic)
2940 if (l == num_ifaces)
2942 if (!interfaces_full [m] || interfaces_full [m]->interface_id > ic->interface_id) {
2951 find_interface_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic)
2953 int i = find_interface (num_ifaces, interfaces_full, ic);
2955 return interface_offsets_full [i];
2960 set_interface_and_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic, int offset, mono_bool force_set)
2962 int i = find_interface (num_ifaces, interfaces_full, ic);
2966 interface_offsets_full [i] = offset;
2969 for (i = 0; i < num_ifaces; ++i) {
2970 if (interfaces_full [i]) {
2972 if (interfaces_full [i]->interface_id < ic->interface_id)
2975 while (end < num_ifaces && interfaces_full [end]) end++;
2976 memmove (interfaces_full + i + 1, interfaces_full + i, sizeof (MonoClass*) * (end - i));
2977 memmove (interface_offsets_full + i + 1, interface_offsets_full + i, sizeof (int) * (end - i));
2979 interfaces_full [i] = ic;
2980 interface_offsets_full [i] = offset;
2986 #ifdef COMPRESSED_INTERFACE_BITMAP
2989 * Compressed interface bitmap design.
2991 * Interface bitmaps take a large amount of memory, because their size is
2992 * linear with the maximum interface id assigned in the process (each interface
2993 * is assigned a unique id as it is loaded). The number of interface classes
2994 * is high because of the many implicit interfaces implemented by arrays (we'll
2995 * need to lazy-load them in the future).
2996 * Most classes implement a very small number of interfaces, so the bitmap is
2997 * sparse. This bitmap needs to be checked by interface casts, so access to the
2998 * needed bit must be fast and doable with few jit instructions.
3000 * The current compression format is as follows:
3001 * *) it is a sequence of one or more two-byte elements
3002 * *) the first byte in the element is the count of empty bitmap bytes
3003 * at the current bitmap position
3004 * *) the second byte in the element is an actual bitmap byte at the current
3007 * As an example, the following compressed bitmap bytes:
3008 * 0x07 0x01 0x00 0x7
3009 * correspond to the following bitmap:
3010 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
3012 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
3013 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
3014 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
3018 * mono_compress_bitmap:
3019 * @dest: destination buffer
3020 * @bitmap: bitmap buffer
3021 * @size: size of @bitmap in bytes
3023 * This is a mono internal function.
3024 * The @bitmap data is compressed into a format that is small but
3025 * still searchable in few instructions by the JIT and runtime.
3026 * The compressed data is stored in the buffer pointed to by the
3027 * @dest array. Passing a #NULL value for @dest allows to just compute
3028 * the size of the buffer.
3029 * This compression algorithm assumes the bits set in the bitmap are
3030 * few and far between, like in interface bitmaps.
3031 * Returns: the size of the compressed bitmap in bytes.
3034 mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size)
3038 const uint8_t *end = bitmap + size;
3039 while (bitmap < end) {
3040 if (*bitmap || numz == 255) {
3064 * mono_class_interface_match:
3065 * @bitmap: a compressed bitmap buffer
3066 * @id: the index to check in the bitmap
3068 * This is a mono internal function.
3069 * Checks if a bit is set in a compressed interface bitmap. @id must
3070 * be already checked for being smaller than the maximum id encoded in the
3073 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
3077 mono_class_interface_match (const uint8_t *bitmap, int id)
3080 id -= bitmap [0] * 8;
3084 return bitmap [1] & (1 << id);
3093 * LOCKING: this is supposed to be called with the loader lock held.
3094 * Return -1 on failure and set exception_type
3097 setup_interface_offsets (MonoClass *class, int cur_slot)
3101 int i, j, max_iid, num_ifaces;
3102 MonoClass **interfaces_full = NULL;
3103 int *interface_offsets_full = NULL;
3105 GPtrArray **ifaces_array = NULL;
3106 int interface_offsets_count;
3107 MonoClass **array_interfaces = NULL;
3108 int num_array_interfaces;
3109 int is_enumerator = FALSE;
3111 mono_class_setup_supertypes (class);
3113 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
3114 * implicit interfaces have the property that they are assigned the same slot in the
3115 * vtables for compatible interfaces
3117 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
3119 /* compute maximum number of slots and maximum interface id */
3121 num_ifaces = num_array_interfaces; /* this can include duplicated ones */
3122 ifaces_array = g_new0 (GPtrArray *, class->idepth);
3123 for (j = 0; j < class->idepth; j++) {
3124 k = class->supertypes [j];
3125 num_ifaces += k->interface_count;
3126 for (i = 0; i < k->interface_count; i++) {
3127 ic = k->interfaces [i];
3130 mono_class_init (ic);
3132 if (max_iid < ic->interface_id)
3133 max_iid = ic->interface_id;
3135 ifaces = mono_class_get_implemented_interfaces (k, &error);
3136 if (!mono_error_ok (&error)) {
3137 char *name = mono_type_get_full_name (k);
3138 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)));
3140 mono_error_cleanup (&error);
3145 num_ifaces += ifaces->len;
3146 for (i = 0; i < ifaces->len; ++i) {
3147 ic = g_ptr_array_index (ifaces, i);
3148 if (max_iid < ic->interface_id)
3149 max_iid = ic->interface_id;
3151 ifaces_array [j] = ifaces;
3155 for (i = 0; i < num_array_interfaces; ++i) {
3156 ic = array_interfaces [i];
3157 mono_class_init (ic);
3158 if (max_iid < ic->interface_id)
3159 max_iid = ic->interface_id;
3162 if (MONO_CLASS_IS_INTERFACE (class)) {
3164 if (max_iid < class->interface_id)
3165 max_iid = class->interface_id;
3167 class->max_interface_id = max_iid;
3168 /* compute vtable offset for interfaces */
3169 interfaces_full = g_malloc0 (sizeof (MonoClass*) * num_ifaces);
3170 interface_offsets_full = g_malloc (sizeof (int) * num_ifaces);
3172 for (i = 0; i < num_ifaces; i++) {
3173 interface_offsets_full [i] = -1;
3176 /* skip the current class */
3177 for (j = 0; j < class->idepth - 1; j++) {
3178 k = class->supertypes [j];
3179 ifaces = ifaces_array [j];
3182 for (i = 0; i < ifaces->len; ++i) {
3184 ic = g_ptr_array_index (ifaces, i);
3186 /*Force the sharing of interface offsets between parent and subtypes.*/
3187 io = mono_class_interface_offset (k, ic);
3189 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, io, TRUE);
3194 g_assert (class == class->supertypes [class->idepth - 1]);
3195 ifaces = ifaces_array [class->idepth - 1];
3197 for (i = 0; i < ifaces->len; ++i) {
3199 ic = g_ptr_array_index (ifaces, i);
3200 if (set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, cur_slot, FALSE))
3202 count = count_virtual_methods (ic);
3204 char *name = mono_type_get_full_name (ic);
3205 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error calculating interface offset of %s", name));
3214 if (MONO_CLASS_IS_INTERFACE (class))
3215 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, class, cur_slot, TRUE);
3217 if (num_array_interfaces) {
3218 if (is_enumerator) {
3219 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
3220 int ienumerator_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ienumerator_idx]);
3221 g_assert (ienumerator_offset >= 0);
3222 for (i = 0; i < num_array_interfaces; ++i) {
3223 ic = array_interfaces [i];
3224 if (strcmp (ic->name, "IEnumerator`1") == 0)
3225 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, ienumerator_offset, TRUE);
3227 g_assert_not_reached ();
3228 /*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);*/
3231 int ilist_offset, icollection_offset, ienumerable_offset;
3232 int ilist_iface_idx = find_array_interface (class, "IList`1");
3233 MonoClass* ilist_class = class->interfaces [ilist_iface_idx];
3234 int icollection_iface_idx = find_array_interface (ilist_class, "ICollection`1");
3235 int ienumerable_iface_idx = find_array_interface (ilist_class, "IEnumerable`1");
3236 ilist_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ilist_iface_idx]);
3237 icollection_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [icollection_iface_idx]);
3238 ienumerable_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [ienumerable_iface_idx]);
3239 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
3240 for (i = 0; i < num_array_interfaces; ++i) {
3242 ic = array_interfaces [i];
3243 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
3244 offset = ilist_offset;
3245 else if (strcmp (ic->name, "ICollection`1") == 0)
3246 offset = icollection_offset;
3247 else if (strcmp (ic->name, "IEnumerable`1") == 0)
3248 offset = ienumerable_offset;
3250 g_assert_not_reached ();
3251 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, offset, TRUE);
3252 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3257 for (interface_offsets_count = 0, i = 0; i < num_ifaces; i++) {
3258 if (interface_offsets_full [i] != -1) {
3259 interface_offsets_count ++;
3264 * We might get called twice: once from mono_class_init () then once from
3265 * mono_class_setup_vtable ().
3267 if (class->interfaces_packed) {
3268 g_assert (class->interface_offsets_count == interface_offsets_count);
3272 class->interface_offsets_count = interface_offsets_count;
3273 class->interfaces_packed = mono_class_alloc (class, sizeof (MonoClass*) * interface_offsets_count);
3274 class->interface_offsets_packed = mono_class_alloc (class, sizeof (guint16) * interface_offsets_count);
3275 bsize = (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0);
3276 #ifdef COMPRESSED_INTERFACE_BITMAP
3277 bitmap = g_malloc0 (bsize);
3279 bitmap = mono_class_alloc0 (class, bsize);
3281 for (i = 0; i < interface_offsets_count; i++) {
3282 int id = interfaces_full [i]->interface_id;
3283 bitmap [id >> 3] |= (1 << (id & 7));
3284 class->interfaces_packed [i] = interfaces_full [i];
3285 class->interface_offsets_packed [i] = interface_offsets_full [i];
3286 /*if (num_array_interfaces)
3287 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]);*/
3289 #ifdef COMPRESSED_INTERFACE_BITMAP
3290 i = mono_compress_bitmap (NULL, bitmap, bsize);
3291 class->interface_bitmap = mono_class_alloc0 (class, i);
3292 mono_compress_bitmap (class->interface_bitmap, bitmap, bsize);
3295 class->interface_bitmap = bitmap;
3300 g_free (interfaces_full);
3301 g_free (interface_offsets_full);
3302 g_free (array_interfaces);
3303 for (i = 0; i < class->idepth; i++) {
3304 ifaces = ifaces_array [i];
3306 g_ptr_array_free (ifaces, TRUE);
3308 g_free (ifaces_array);
3310 //printf ("JUST DONE: ");
3311 //print_implemented_interfaces (class);
3317 * Setup interface offsets for interfaces.
3319 * - class->max_interface_id
3320 * - class->interface_offsets_count
3321 * - class->interfaces_packed
3322 * - class->interface_offsets_packed
3323 * - class->interface_bitmap
3325 * This function can fail @class.
3328 mono_class_setup_interface_offsets (MonoClass *class)
3330 mono_loader_lock ();
3332 setup_interface_offsets (class, 0);
3334 mono_loader_unlock ();
3337 /*Checks if @klass has @parent as one of it's parents type gtd
3341 * Bar<T> : Foo<Bar<Bar<T>>>
3345 mono_class_has_gtd_parent (MonoClass *klass, MonoClass *parent)
3347 klass = mono_class_get_generic_type_definition (klass);
3348 parent = mono_class_get_generic_type_definition (parent);
3349 mono_class_setup_supertypes (klass);
3350 mono_class_setup_supertypes (parent);
3352 return klass->idepth >= parent->idepth &&
3353 mono_class_get_generic_type_definition (klass->supertypes [parent->idepth - 1]) == parent;
3357 mono_class_check_vtable_constraints (MonoClass *class, GList *in_setup)
3359 MonoGenericInst *ginst;
3361 if (!class->generic_class) {
3362 mono_class_setup_vtable_full (class, in_setup);
3363 return class->exception_type == 0;
3366 mono_class_setup_vtable_full (mono_class_get_generic_type_definition (class), in_setup);
3367 if (class->generic_class->container_class->exception_type) {
3368 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to load generic definition vtable"));
3372 ginst = class->generic_class->context.class_inst;
3373 for (i = 0; i < ginst->type_argc; ++i) {
3375 if (ginst->type_argv [i]->type != MONO_TYPE_GENERICINST)
3377 arg = mono_class_from_mono_type (ginst->type_argv [i]);
3378 /*Those 2 will be checked by mono_class_setup_vtable itself*/
3379 if (mono_class_has_gtd_parent (class, arg) || mono_class_has_gtd_parent (arg, class))
3381 if (!mono_class_check_vtable_constraints (arg, in_setup)) {
3382 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Failed to load generic parameter %d", i));
3390 * mono_class_setup_vtable:
3392 * Creates the generic vtable of CLASS.
3393 * Initializes the following fields in MonoClass:
3396 * Plus all the fields initialized by setup_interface_offsets ().
3397 * If there is an error during vtable construction, class->exception_type is set.
3399 * LOCKING: Acquires the loader lock.
3402 mono_class_setup_vtable (MonoClass *class)
3404 mono_class_setup_vtable_full (class, NULL);
3408 mono_class_setup_vtable_full (MonoClass *class, GList *in_setup)
3410 MonoMethod **overrides;
3411 MonoGenericContext *context;
3419 if (mono_debug_using_mono_debugger ())
3420 /* The debugger currently depends on this */
3421 mono_class_setup_methods (class);
3423 if (MONO_CLASS_IS_INTERFACE (class)) {
3424 /* This sets method->slot for all methods if this is an interface */
3425 mono_class_setup_methods (class);
3429 if (class->exception_type)
3432 if (g_list_find (in_setup, class))
3435 mono_loader_lock ();
3437 if (class->vtable) {
3438 mono_loader_unlock ();
3442 mono_stats.generic_vtable_count ++;
3443 in_setup = g_list_prepend (in_setup, class);
3445 if (class->generic_class) {
3446 if (!mono_class_check_vtable_constraints (class, in_setup)) {
3447 mono_loader_unlock ();
3448 g_list_remove (in_setup, class);
3452 context = mono_class_get_context (class);
3453 type_token = class->generic_class->container_class->type_token;
3455 context = (MonoGenericContext *) class->generic_container;
3456 type_token = class->type_token;
3459 if (class->image->dynamic) {
3460 /* Generic instances can have zero method overrides without causing any harm.
3461 * This is true since we don't do layout all over again for them, we simply inflate
3462 * the layout of the parent.
3464 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
3466 /* The following call fails if there are missing methods in the type */
3467 /* FIXME it's probably a good idea to avoid this for generic instances. */
3468 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
3472 mono_class_setup_vtable_general (class, overrides, onum, in_setup);
3474 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load list of method overrides"));
3478 mono_loader_unlock ();
3479 g_list_remove (in_setup, class);
3484 #define DEBUG_INTERFACE_VTABLE_CODE 0
3485 #define TRACE_INTERFACE_VTABLE_CODE 0
3486 #define VERIFY_INTERFACE_VTABLE_CODE 0
3487 #define VTABLE_SELECTOR (1)
3489 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3490 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3491 if (!(VTABLE_SELECTOR)) break; \
3495 #define DEBUG_INTERFACE_VTABLE(stmt)
3498 #if TRACE_INTERFACE_VTABLE_CODE
3499 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3500 if (!(VTABLE_SELECTOR)) break; \
3504 #define TRACE_INTERFACE_VTABLE(stmt)
3507 #if VERIFY_INTERFACE_VTABLE_CODE
3508 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3509 if (!(VTABLE_SELECTOR)) break; \
3513 #define VERIFY_INTERFACE_VTABLE(stmt)
3517 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3519 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
3523 GString *res = g_string_new ("");
3525 g_string_append_c (res, '(');
3526 for (i = 0; i < sig->param_count; ++i) {
3528 g_string_append_c (res, ',');
3529 mono_type_get_desc (res, sig->params [i], include_namespace);
3531 g_string_append (res, ")=>");
3532 if (sig->ret != NULL) {
3533 mono_type_get_desc (res, sig->ret, include_namespace);
3535 g_string_append (res, "NULL");
3538 g_string_free (res, FALSE);
3542 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
3543 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
3544 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
3545 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
3553 is_wcf_hack_disabled (void)
3555 static gboolean disabled;
3556 static gboolean inited = FALSE;
3558 disabled = g_getenv ("MONO_DISABLE_WCF_HACK") != NULL;
3565 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) {
3566 MonoMethodSignature *cmsig, *imsig;
3567 if (strcmp (im->name, cm->name) == 0) {
3568 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
3569 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3572 if (! slot_is_empty) {
3573 if (require_newslot) {
3574 if (! interface_is_explicitly_implemented_by_class) {
3575 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3578 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3579 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3583 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3586 cmsig = mono_method_signature (cm);
3587 imsig = mono_method_signature (im);
3588 if (!cmsig || !imsig) {
3589 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3593 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3594 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3595 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3596 TRACE_INTERFACE_VTABLE (printf ("]"));
3599 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3600 /* CAS - SecurityAction.InheritanceDemand on interface */
3601 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3602 mono_secman_inheritancedemand_method (cm, im);
3605 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3606 mono_security_core_clr_check_override (class, cm, im);
3607 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3608 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, im, NULL)) {
3609 char *body_name = mono_method_full_name (cm, TRUE);
3610 char *decl_name = mono_method_full_name (im, TRUE);
3611 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));
3619 MonoClass *ic = im->klass;
3620 const char *ic_name_space = ic->name_space;
3621 const char *ic_name = ic->name;
3624 if (! require_newslot) {
3625 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3628 if (cm->klass->rank == 0) {
3629 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3632 cmsig = mono_method_signature (cm);
3633 imsig = mono_method_signature (im);
3634 if (!cmsig || !imsig) {
3635 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3639 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3640 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
3641 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3642 TRACE_INTERFACE_VTABLE (printf ("]"));
3645 if (mono_class_get_image (ic) != mono_defaults.corlib) {
3646 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
3649 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
3650 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
3653 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
3654 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
3658 subname = strstr (cm->name, ic_name_space);
3659 if (subname != cm->name) {
3660 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
3663 subname += strlen (ic_name_space);
3664 if (subname [0] != '.') {
3665 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
3669 if (strstr (subname, ic_name) != subname) {
3670 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
3673 subname += strlen (ic_name);
3674 if (subname [0] != '.') {
3675 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
3679 if (strcmp (subname, im->name) != 0) {
3680 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3684 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3685 /* CAS - SecurityAction.InheritanceDemand on interface */
3686 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3687 mono_secman_inheritancedemand_method (cm, im);
3690 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3691 mono_security_core_clr_check_override (class, cm, im);
3693 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3694 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, im, NULL)) {
3695 char *body_name = mono_method_full_name (cm, TRUE);
3696 char *decl_name = mono_method_full_name (im, TRUE);
3697 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));
3707 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3709 foreach_override (gpointer key, gpointer value, gpointer user_data) {
3710 MonoMethod *method = key;
3711 MonoMethod *override = value;
3712 MonoClass *method_class = mono_method_get_class (method);
3713 MonoClass *override_class = mono_method_get_class (override);
3715 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3716 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
3717 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
3720 print_overrides (GHashTable *override_map, const char *message) {
3722 printf ("Override map \"%s\" START:\n", message);
3723 g_hash_table_foreach (override_map, foreach_override, NULL);
3724 printf ("Override map \"%s\" END.\n", message);
3726 printf ("Override map \"%s\" EMPTY.\n", message);
3730 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
3731 char *full_name = mono_type_full_name (&class->byval_arg);
3735 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
3737 if (print_interfaces) {
3738 print_implemented_interfaces (class);
3739 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3742 if (class->parent) {
3743 parent_size = class->parent->vtable_size;
3747 for (i = 0; i < size; ++i) {
3748 MonoMethod *cm = vtable [i];
3749 char *cm_name = cm ? mono_method_full_name (cm, TRUE) : g_strdup ("nil");
3750 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3752 printf (" [%c][%03d][INDEX %03d] %s [%p]\n", newness, i, cm ? cm->slot : - 1, cm_name, cm);
3760 #if VERIFY_INTERFACE_VTABLE_CODE
3762 mono_method_try_get_vtable_index (MonoMethod *method)
3764 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3765 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3766 if (imethod->declaring->is_generic)
3767 return imethod->declaring->slot;
3769 return method->slot;
3773 mono_class_verify_vtable (MonoClass *class)
3776 char *full_name = mono_type_full_name (&class->byval_arg);
3778 printf ("*** Verifying VTable of class '%s' \n", full_name);
3782 if (!class->methods)
3785 for (i = 0; i < class->method.count; ++i) {
3786 MonoMethod *cm = class->methods [i];
3789 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3793 full_name = mono_method_full_name (cm, TRUE);
3795 slot = mono_method_try_get_vtable_index (cm);
3797 if (slot >= class->vtable_size) {
3798 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3802 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3803 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3804 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3805 g_free (other_name);
3808 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3815 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3817 char *method_signature;
3820 for (index = 0; index < onum; ++index) {
3821 mono_trace_warning (MONO_TRACE_TYPE, " at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3822 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3824 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3825 type_name = mono_type_full_name (&class->byval_arg);
3826 mono_trace_warning (MONO_TRACE_TYPE, "no implementation for interface method %s::%s(%s) in class %s\n",
3827 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3828 g_free (method_signature);
3830 mono_class_setup_methods (class);
3831 if (class->exception_type) {
3832 char *name = mono_type_get_full_name (class);
3833 mono_trace_warning (MONO_TRACE_TYPE, "CLASS %s failed to resolve methods\n", name);
3837 for (index = 0; index < class->method.count; ++index) {
3838 MonoMethod *cm = class->methods [index];
3839 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3841 mono_trace_warning (MONO_TRACE_TYPE, "METHOD %s(%s)\n", cm->name, method_signature);
3842 g_free (method_signature);
3847 mono_method_get_method_definition (MonoMethod *method)
3849 while (method->is_inflated)
3850 method = ((MonoMethodInflated*)method)->declaring;
3855 verify_class_overrides (MonoClass *class, MonoMethod **overrides, int onum)
3859 for (i = 0; i < onum; ++i) {
3860 MonoMethod *decl = overrides [i * 2];
3861 MonoMethod *body = overrides [i * 2 + 1];
3863 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3864 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3868 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3869 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3870 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3872 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3876 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3877 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3878 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3880 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3884 if (!mono_class_is_assignable_from_slow (decl->klass, class)) {
3885 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3889 body = mono_method_get_method_definition (body);
3890 decl = mono_method_get_method_definition (decl);
3892 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (body, decl, NULL)) {
3893 char *body_name = mono_method_full_name (body, TRUE);
3894 char *decl_name = mono_method_full_name (decl, TRUE);
3895 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));
3905 mono_class_need_stelemref_method (MonoClass *class)
3907 return class->rank == 1 && MONO_TYPE_IS_REFERENCE (&class->element_class->byval_arg);
3911 * LOCKING: this is supposed to be called with the loader lock held.
3914 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum, GList *in_setup)
3918 MonoMethod **vtable;
3919 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3920 GPtrArray *ifaces = NULL;
3921 GHashTable *override_map = NULL;
3922 gboolean security_enabled = mono_is_security_manager_active ();
3924 gpointer class_iter;
3925 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3926 int first_non_interface_slot;
3928 GSList *virt_methods = NULL, *l;
3929 int stelemref_slot = 0;
3934 if (overrides && !verify_class_overrides (class, overrides, onum))
3937 ifaces = mono_class_get_implemented_interfaces (class, &error);
3938 if (!mono_error_ok (&error)) {
3939 char *name = mono_type_get_full_name (class);
3940 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)));
3942 mono_error_cleanup (&error);
3944 } else if (ifaces) {
3945 for (i = 0; i < ifaces->len; i++) {
3946 MonoClass *ic = g_ptr_array_index (ifaces, i);
3947 max_vtsize += ic->method.count;
3949 g_ptr_array_free (ifaces, TRUE);
3953 if (class->parent) {
3954 mono_class_init (class->parent);
3955 mono_class_setup_vtable_full (class->parent, in_setup);
3957 if (class->parent->exception_type) {
3958 char *name = mono_type_get_full_name (class->parent);
3959 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Parent %s failed to load", name));
3964 max_vtsize += class->parent->vtable_size;
3965 cur_slot = class->parent->vtable_size;
3968 max_vtsize += class->method.count;
3970 /*Array have a slot for stelemref*/
3971 if (mono_class_need_stelemref_method (class)) {
3972 stelemref_slot = cur_slot;
3977 vtable = alloca (sizeof (gpointer) * max_vtsize);
3978 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3980 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3982 cur_slot = setup_interface_offsets (class, cur_slot);
3983 if (cur_slot == -1) /*setup_interface_offsets fails the type.*/
3986 max_iid = class->max_interface_id;
3987 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3989 /* Optimized version for generic instances */
3990 if (class->generic_class) {
3992 MonoClass *gklass = class->generic_class->container_class;
3995 mono_class_setup_vtable_full (gklass, in_setup);
3996 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
3997 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4001 tmp = mono_class_alloc0 (class, sizeof (gpointer) * gklass->vtable_size);
4002 class->vtable_size = gklass->vtable_size;
4003 for (i = 0; i < gklass->vtable_size; ++i)
4004 if (gklass->vtable [i]) {
4005 MonoMethod *inflated = mono_class_inflate_generic_method_full_checked (gklass->vtable [i], class, mono_class_get_context (class), &error);
4006 if (!mono_error_ok (&error)) {
4007 char *err_msg = g_strdup_printf ("Could not inflate method due to %s", mono_error_get_message (&error));
4008 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
4010 mono_error_cleanup (&error);
4014 tmp [i]->slot = gklass->vtable [i]->slot;
4016 mono_memory_barrier ();
4017 class->vtable = tmp;
4019 /* Have to set method->slot for abstract virtual methods */
4020 if (class->methods && gklass->methods) {
4021 for (i = 0; i < class->method.count; ++i)
4022 if (class->methods [i]->slot == -1)
4023 class->methods [i]->slot = gklass->methods [i]->slot;
4029 if (class->parent && class->parent->vtable_size) {
4030 MonoClass *parent = class->parent;
4033 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
4035 // Also inherit parent interface vtables, just as a starting point.
4036 // This is needed otherwise bug-77127.exe fails when the property methods
4037 // have different names in the iterface and the class, because for child
4038 // classes the ".override" information is not used anymore.
4039 for (i = 0; i < parent->interface_offsets_count; i++) {
4040 MonoClass *parent_interface = parent->interfaces_packed [i];
4041 int interface_offset = mono_class_interface_offset (class, parent_interface);
4042 /*FIXME this is now dead code as this condition will never hold true.
4043 Since interface offsets are inherited then the offset of an interface implemented
4044 by a parent will never be the out of it's vtable boundary.
4046 if (interface_offset >= parent->vtable_size) {
4047 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
4050 mono_class_setup_methods (parent_interface); /*FIXME Just kill this whole chunk of dead code*/
4051 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
4052 for (j = 0; j < parent_interface->method.count && !class->exception_type; j++) {
4053 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
4054 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
4055 parent_interface_offset + j, parent_interface_offset, j,
4056 interface_offset + j, interface_offset, j));
4063 /*Array have a slot for stelemref*/
4064 if (mono_class_need_stelemref_method (class)) {
4065 MonoMethod *method = mono_marshal_get_virtual_stelemref (class);
4067 method->slot = stelemref_slot;
4069 g_assert (method->slot == stelemref_slot);
4071 vtable [stelemref_slot] = method;
4074 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
4075 /* override interface methods */
4076 for (i = 0; i < onum; i++) {
4077 MonoMethod *decl = overrides [i*2];
4078 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
4080 dslot = mono_method_get_vtable_slot (decl);
4082 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4086 dslot += mono_class_interface_offset (class, decl->klass);
4087 vtable [dslot] = overrides [i*2 + 1];
4088 vtable [dslot]->slot = dslot;
4090 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4092 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
4094 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4095 mono_security_core_clr_check_override (class, vtable [dslot], decl);
4098 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
4099 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
4102 * Create a list of virtual methods to avoid calling
4103 * mono_class_get_virtual_methods () which is slow because of the metadata
4107 gpointer iter = NULL;
4110 virt_methods = NULL;
4111 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
4112 virt_methods = g_slist_prepend (virt_methods, cm);
4114 if (class->exception_type)
4118 // Loop on all implemented interfaces...
4119 for (i = 0; i < class->interface_offsets_count; i++) {
4120 MonoClass *parent = class->parent;
4122 gboolean interface_is_explicitly_implemented_by_class;
4125 ic = class->interfaces_packed [i];
4126 ic_offset = mono_class_interface_offset (class, ic);
4128 mono_class_setup_methods (ic);
4129 if (ic->exception_type)
4132 // Check if this interface is explicitly implemented (instead of just inherited)
4133 if (parent != NULL) {
4134 int implemented_interfaces_index;
4135 interface_is_explicitly_implemented_by_class = FALSE;
4136 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
4137 if (ic == class->interfaces [implemented_interfaces_index]) {
4138 interface_is_explicitly_implemented_by_class = TRUE;
4143 interface_is_explicitly_implemented_by_class = TRUE;
4146 // Loop on all interface methods...
4147 for (im_index = 0; im_index < ic->method.count; im_index++) {
4148 MonoMethod *im = ic->methods [im_index];
4149 int im_slot = ic_offset + im->slot;
4150 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
4152 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4155 TRACE_INTERFACE_VTABLE (printf ("\tchecking iface method %s\n", mono_method_full_name (im,1)));
4157 // If there is an explicit implementation, just use it right away,
4158 // otherwise look for a matching method
4159 if (override_im == NULL) {
4164 // First look for a suitable method among the class methods
4166 for (l = virt_methods; l; l = l->next) {
4168 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)));
4169 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
4170 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
4171 vtable [im_slot] = cm;
4172 /* Why do we need this? */
4177 TRACE_INTERFACE_VTABLE (printf ("\n"));
4178 if (class->exception_type) /*Might be set by check_interface_method_override*/
4182 // If the slot is still empty, look in all the inherited virtual methods...
4183 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
4184 MonoClass *parent = class->parent;
4185 // Reverse order, so that last added methods are preferred
4186 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
4187 MonoMethod *cm = parent->vtable [cm_index];
4189 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));
4190 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
4191 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
4192 vtable [im_slot] = cm;
4193 /* Why do we need this? */
4199 if (class->exception_type) /*Might be set by check_interface_method_override*/
4201 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
4205 g_assert (vtable [im_slot] == override_im);
4210 // If the class is not abstract, check that all its interface slots are full.
4211 // The check is done here and not directly at the end of the loop above because
4212 // it can happen (for injected generic array interfaces) that the same slot is
4213 // processed multiple times (those interfaces have overlapping slots), and it
4214 // will not always be the first pass the one that fills the slot.
4215 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4216 for (i = 0; i < class->interface_offsets_count; i++) {
4220 ic = class->interfaces_packed [i];
4221 ic_offset = mono_class_interface_offset (class, ic);
4223 for (im_index = 0; im_index < ic->method.count; im_index++) {
4224 MonoMethod *im = ic->methods [im_index];
4225 int im_slot = ic_offset + im->slot;
4227 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4230 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
4231 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
4232 if (vtable [im_slot] == NULL) {
4233 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
4240 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
4242 for (l = virt_methods; l; l = l->next) {
4245 * If the method is REUSE_SLOT, we must check in the
4246 * base class for a method to override.
4248 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
4250 for (k = class->parent; k ; k = k->parent) {
4255 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
4256 MonoMethodSignature *cmsig, *m1sig;
4258 cmsig = mono_method_signature (cm);
4259 m1sig = mono_method_signature (m1);
4261 if (!cmsig || !m1sig) {
4262 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4266 if (!strcmp(cm->name, m1->name) &&
4267 mono_metadata_signature_equal (cmsig, m1sig)) {
4269 /* CAS - SecurityAction.InheritanceDemand */
4270 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
4271 mono_secman_inheritancedemand_method (cm, m1);
4274 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4275 mono_security_core_clr_check_override (class, cm, m1);
4277 slot = mono_method_get_vtable_slot (m1);
4281 if (is_wcf_hack_disabled () && !mono_method_can_access_method_full (cm, m1, NULL)) {
4282 char *body_name = mono_method_full_name (cm, TRUE);
4283 char *decl_name = mono_method_full_name (m1, TRUE);
4284 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));
4290 g_assert (cm->slot < max_vtsize);
4292 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4293 TRACE_INTERFACE_VTABLE (printf ("adding iface override from %s [%p] to %s [%p]\n",
4294 mono_method_full_name (m1, 1), m1,
4295 mono_method_full_name (cm, 1), cm));
4296 g_hash_table_insert (override_map, m1, cm);
4300 if (k->exception_type)
4310 /*Non final newslot methods must be given a non-interface vtable slot*/
4311 if ((cm->flags & METHOD_ATTRIBUTE_NEW_SLOT) && !(cm->flags & METHOD_ATTRIBUTE_FINAL) && cm->slot >= 0)
4315 cm->slot = cur_slot++;
4317 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
4318 vtable [cm->slot] = cm;
4321 /* override non interface methods */
4322 for (i = 0; i < onum; i++) {
4323 MonoMethod *decl = overrides [i*2];
4324 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
4325 g_assert (decl->slot != -1);
4326 vtable [decl->slot] = overrides [i*2 + 1];
4327 overrides [i * 2 + 1]->slot = decl->slot;
4329 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4330 TRACE_INTERFACE_VTABLE (printf ("adding explicit override from %s [%p] to %s [%p]\n",
4331 mono_method_full_name (decl, 1), decl,
4332 mono_method_full_name (overrides [i * 2 + 1], 1), overrides [i * 2 + 1]));
4333 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
4335 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4336 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
4341 * If a method occupies more than one place in the vtable, and it is
4342 * overriden, then change the other occurances too.
4347 for (i = 0; i < max_vtsize; ++i)
4349 TRACE_INTERFACE_VTABLE (printf ("checking slot %d method %s[%p] for overrides\n", i, mono_method_full_name (vtable [i], 1), vtable [i]));
4351 cm = g_hash_table_lookup (override_map, vtable [i]);
4356 g_hash_table_destroy (override_map);
4357 override_map = NULL;
4360 g_slist_free (virt_methods);
4361 virt_methods = NULL;
4363 /* Ensure that all vtable slots are filled with concrete instance methods */
4364 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4365 for (i = 0; i < cur_slot; ++i) {
4366 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
4367 char *type_name = mono_type_get_full_name (class);
4368 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
4369 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));
4371 g_free (method_name);
4377 if (class->generic_class) {
4378 MonoClass *gklass = class->generic_class->container_class;
4380 mono_class_init (gklass);
4382 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
4384 /* Check that the vtable_size value computed in mono_class_init () is correct */
4385 if (class->vtable_size)
4386 g_assert (cur_slot == class->vtable_size);
4387 class->vtable_size = cur_slot;
4390 /* Try to share the vtable with our parent. */
4391 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
4392 mono_memory_barrier ();
4393 class->vtable = class->parent->vtable;
4395 MonoMethod **tmp = mono_class_alloc0 (class, sizeof (gpointer) * class->vtable_size);
4396 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
4397 mono_memory_barrier ();
4398 class->vtable = tmp;
4401 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
4402 if (mono_print_vtable) {
4405 print_implemented_interfaces (class);
4407 for (i = 0; i <= max_iid; i++)
4408 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
4411 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
4412 class->vtable_size, icount);
4414 for (i = 0; i < cur_slot; ++i) {
4419 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
4420 mono_method_full_name (cm, TRUE));
4426 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
4427 class->name, max_iid);
4429 for (i = 0; i < class->interface_count; i++) {
4430 ic = class->interfaces [i];
4431 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
4432 mono_class_interface_offset (class, ic),
4433 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4436 for (k = class->parent; k ; k = k->parent) {
4437 for (i = 0; i < k->interface_count; i++) {
4438 ic = k->interfaces [i];
4439 printf (" parent slot offset: %03d, method count: %03d, iid: %03d %s\n",
4440 mono_class_interface_offset (class, ic),
4441 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4447 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
4452 char *name = mono_type_get_full_name (class);
4453 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("VTable setup of type %s failed", name));
4456 g_hash_table_destroy (override_map);
4458 g_slist_free (virt_methods);
4463 * mono_method_get_vtable_slot:
4465 * Returns method->slot, computing it if neccesary. Return -1 on failure.
4466 * LOCKING: Acquires the loader lock.
4468 * FIXME Use proper MonoError machinery here.
4471 mono_method_get_vtable_slot (MonoMethod *method)
4473 if (method->slot == -1) {
4474 mono_class_setup_vtable (method->klass);
4475 if (method->klass->exception_type)
4477 g_assert (method->slot != -1);
4479 return method->slot;
4483 * mono_method_get_vtable_index:
4486 * Returns the index into the runtime vtable to access the method or,
4487 * in the case of a virtual generic method, the virtual generic method
4488 * thunk. Returns -1 on failure.
4490 * FIXME Use proper MonoError machinery here.
4493 mono_method_get_vtable_index (MonoMethod *method)
4495 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
4496 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4497 if (imethod->declaring->is_generic)
4498 return mono_method_get_vtable_slot (imethod->declaring);
4500 return mono_method_get_vtable_slot (method);
4503 static MonoMethod *default_ghc = NULL;
4504 static MonoMethod *default_finalize = NULL;
4505 static int finalize_slot = -1;
4506 static int ghc_slot = -1;
4509 initialize_object_slots (MonoClass *class)
4514 if (class == mono_defaults.object_class) {
4515 mono_class_setup_vtable (class);
4516 for (i = 0; i < class->vtable_size; ++i) {
4517 MonoMethod *cm = class->vtable [i];
4519 if (!strcmp (cm->name, "GetHashCode"))
4521 else if (!strcmp (cm->name, "Finalize"))
4525 g_assert (ghc_slot > 0);
4526 default_ghc = class->vtable [ghc_slot];
4528 g_assert (finalize_slot > 0);
4529 default_finalize = class->vtable [finalize_slot];
4534 MonoMethod *array_method;
4536 } GenericArrayMethodInfo;
4538 static int generic_array_method_num = 0;
4539 static GenericArrayMethodInfo *generic_array_method_info = NULL;
4542 generic_array_methods (MonoClass *class)
4544 int i, count_generic = 0;
4545 GList *list = NULL, *tmp;
4546 if (generic_array_method_num)
4547 return generic_array_method_num;
4548 mono_class_setup_methods (class->parent); /*This is setting up System.Array*/
4549 g_assert (!class->parent->exception_type); /*So hitting this assert is a huge problem*/
4550 for (i = 0; i < class->parent->method.count; i++) {
4551 MonoMethod *m = class->parent->methods [i];
4552 if (!strncmp (m->name, "InternalArray__", 15)) {
4554 list = g_list_prepend (list, m);
4557 list = g_list_reverse (list);
4558 generic_array_method_info = mono_image_alloc (mono_defaults.corlib, sizeof (GenericArrayMethodInfo) * count_generic);
4560 for (tmp = list; tmp; tmp = tmp->next) {
4561 const char *mname, *iname;
4563 MonoMethod *m = tmp->data;
4564 generic_array_method_info [i].array_method = m;
4565 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
4566 iname = "System.Collections.Generic.ICollection`1.";
4567 mname = m->name + 27;
4568 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
4569 iname = "System.Collections.Generic.IEnumerable`1.";
4570 mname = m->name + 27;
4571 } else if (!strncmp (m->name, "InternalArray__", 15)) {
4572 iname = "System.Collections.Generic.IList`1.";
4573 mname = m->name + 15;
4575 g_assert_not_reached ();
4578 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
4579 strcpy (name, iname);
4580 strcpy (name + strlen (iname), mname);
4581 generic_array_method_info [i].name = name;
4584 /*g_print ("array generic methods: %d\n", count_generic);*/
4586 generic_array_method_num = count_generic;
4588 return generic_array_method_num;
4592 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
4594 MonoGenericContext tmp_context;
4597 tmp_context.class_inst = NULL;
4598 tmp_context.method_inst = iface->generic_class->context.class_inst;
4599 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
4601 for (i = 0; i < generic_array_method_num; i++) {
4602 MonoMethod *m = generic_array_method_info [i].array_method;
4603 MonoMethod *inflated;
4605 inflated = mono_class_inflate_generic_method (m, &tmp_context);
4606 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
4611 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
4613 int null_length = strlen ("(null)");
4614 int len = (s1 ? strlen (s1) : null_length) + (s2 ? strlen (s2) : null_length) + 2;
4615 char *s = mono_image_alloc (image, len);
4618 result = g_snprintf (s, len, "%s%c%s", s1 ? s1 : "(null)", '\0', s2 ? s2 : "(null)");
4619 g_assert (result == len - 1);
4625 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
4627 gpointer exception_data = NULL;
4629 switch (error->exception_type) {
4630 case MONO_EXCEPTION_TYPE_LOAD:
4631 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
4634 case MONO_EXCEPTION_MISSING_METHOD:
4635 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
4638 case MONO_EXCEPTION_MISSING_FIELD: {
4639 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
4640 const char *class_name;
4643 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
4645 class_name = error->klass->name;
4647 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
4650 g_free ((void*)class_name);
4654 case MONO_EXCEPTION_FILE_NOT_FOUND: {
4657 if (error->ref_only)
4658 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.";
4660 msg = "Could not load file or assembly '%s' or one of its dependencies.";
4662 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
4666 case MONO_EXCEPTION_BAD_IMAGE:
4667 exception_data = error->msg;
4671 g_assert_not_reached ();
4674 mono_class_set_failure (class, error->exception_type, exception_data);
4679 * @class: the class to initialize
4681 * Compute the instance_size, class_size and other infos that cannot be
4682 * computed at mono_class_get() time. Also compute vtable_size if possible.
4683 * Returns TRUE on success or FALSE if there was a problem in loading
4684 * the type (incorrect assemblies, missing assemblies, methods, etc).
4686 * LOCKING: Acquires the loader lock.
4689 mono_class_init (MonoClass *class)
4692 MonoCachedClassInfo cached_info;
4693 gboolean has_cached_info;
4697 /* Double-checking locking pattern */
4698 if (class->inited || class->exception_type)
4699 return class->exception_type == MONO_EXCEPTION_NONE;
4701 /*g_print ("Init class %s\n", mono_type_get_full_name (class));*/
4703 /* We do everything inside the lock to prevent races */
4704 mono_loader_lock ();
4706 if (class->inited || class->exception_type) {
4707 mono_loader_unlock ();
4708 /* Somebody might have gotten in before us */
4709 return class->exception_type == MONO_EXCEPTION_NONE;
4712 if (class->init_pending) {
4713 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Recursive type definition detected"));
4717 class->init_pending = 1;
4719 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4720 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4725 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
4726 MonoClass *element_class = class->element_class;
4727 if (!element_class->inited)
4728 mono_class_init (element_class);
4729 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
4730 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4735 /* CAS - SecurityAction.InheritanceDemand */
4736 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
4737 mono_secman_inheritancedemand_class (class, class->parent);
4740 mono_stats.initialized_class_count++;
4742 if (class->generic_class && !class->generic_class->is_dynamic) {
4743 MonoClass *gklass = class->generic_class->container_class;
4745 mono_stats.generic_class_count++;
4747 class->method = gklass->method;
4748 class->field = gklass->field;
4750 mono_class_init (gklass);
4751 // FIXME: Why is this needed ?
4752 if (!gklass->exception_type)
4753 mono_class_setup_methods (gklass);
4754 if (gklass->exception_type) {
4755 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Generic Type Defintion failed to init"));
4759 if (MONO_CLASS_IS_INTERFACE (class))
4760 class->interface_id = mono_get_unique_iid (class);
4763 if (class->parent && !class->parent->inited)
4764 mono_class_init (class->parent);
4766 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
4768 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
4769 class->nested_classes_inited = TRUE;
4772 * Computes the size used by the fields, and their locations
4774 if (has_cached_info) {
4775 class->instance_size = cached_info.instance_size;
4776 class->sizes.class_size = cached_info.class_size;
4777 class->packing_size = cached_info.packing_size;
4778 class->min_align = cached_info.min_align;
4779 class->blittable = cached_info.blittable;
4780 class->has_references = cached_info.has_references;
4781 class->has_static_refs = cached_info.has_static_refs;
4782 class->no_special_static_fields = cached_info.no_special_static_fields;
4785 if (!class->size_inited){
4786 mono_class_setup_fields (class);
4787 if (class->exception_type || mono_loader_get_last_error ())
4791 /* Initialize arrays */
4793 class->method.count = 3 + (class->rank > 1? 2: 1);
4795 if (class->interface_count) {
4796 int count_generic = generic_array_methods (class);
4797 class->method.count += class->interface_count * count_generic;
4801 mono_class_setup_supertypes (class);
4804 initialize_object_slots (class);
4807 * Initialize the rest of the data without creating a generic vtable if possible.
4808 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
4809 * also avoid computing a generic vtable.
4811 if (has_cached_info) {
4813 class->vtable_size = cached_info.vtable_size;
4814 class->has_finalize = cached_info.has_finalize;
4815 class->has_finalize_inited = TRUE;
4816 class->ghcimpl = cached_info.ghcimpl;
4817 class->has_cctor = cached_info.has_cctor;
4818 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
4819 /* SZARRAY can have 2 vtable layouts, with and without the stelemref method.
4820 * The first slot if for array with.
4822 static int szarray_vtable_size[2] = { 0 };
4824 int slot = MONO_TYPE_IS_REFERENCE (&class->element_class->byval_arg) ? 0 : 1;
4827 if (!szarray_vtable_size [slot]) {
4828 mono_class_setup_vtable (class);
4829 szarray_vtable_size [slot] = class->vtable_size;
4831 class->vtable_size = szarray_vtable_size[slot];
4833 class->has_finalize_inited = TRUE;
4834 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
4835 MonoClass *gklass = class->generic_class->container_class;
4837 /* Generic instance case */
4838 class->ghcimpl = gklass->ghcimpl;
4839 class->has_finalize = mono_class_has_finalizer (gklass);
4840 class->has_finalize_inited = TRUE;
4841 class->has_cctor = gklass->has_cctor;
4843 mono_class_setup_vtable (gklass);
4844 if (gklass->exception_type) {
4845 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4849 class->vtable_size = gklass->vtable_size;
4853 /* ghcimpl is not currently used
4855 if (class->parent) {
4856 MonoMethod *cmethod = class->vtable [ghc_slot];
4857 if (cmethod->is_inflated)
4858 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4859 if (cmethod == default_ghc) {
4865 /* C# doesn't allow interfaces to have cctors */
4866 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4867 MonoMethod *cmethod = NULL;
4869 if (class->type_token) {
4870 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4871 /* The find_method function ignores the 'flags' argument */
4872 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4873 class->has_cctor = 1;
4875 mono_class_setup_methods (class);
4876 if (class->exception_type)
4879 for (i = 0; i < class->method.count; ++i) {
4880 MonoMethod *method = class->methods [i];
4881 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4882 (strcmp (".cctor", method->name) == 0)) {
4883 class->has_cctor = 1;
4891 if (class->parent) {
4892 int first_iface_slot;
4893 /* This will compute class->parent->vtable_size for some classes */
4894 mono_class_init (class->parent);
4895 if (class->parent->exception_type) {
4896 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4899 if (mono_loader_get_last_error ())
4901 if (!class->parent->vtable_size) {
4902 /* FIXME: Get rid of this somehow */
4903 mono_class_setup_vtable (class->parent);
4904 if (class->parent->exception_type) {
4905 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4908 if (mono_loader_get_last_error ())
4911 first_iface_slot = class->parent->vtable_size;
4912 if (mono_class_need_stelemref_method (class))
4914 setup_interface_offsets (class, first_iface_slot);
4916 setup_interface_offsets (class, 0);
4919 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4920 mono_security_core_clr_check_inheritance (class);
4922 if (mono_loader_get_last_error ()) {
4923 if (class->exception_type == MONO_EXCEPTION_NONE) {
4924 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4926 mono_loader_clear_error ();
4929 if (class->generic_class && !mono_verifier_class_is_valid_generic_instantiation (class))
4930 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Invalid generic instantiation"));
4935 /* Because of the double-checking locking pattern */
4936 mono_memory_barrier ();
4938 class->init_pending = 0;
4940 mono_loader_unlock ();
4942 if (mono_debugger_class_init_func)
4943 mono_debugger_class_init_func (class);
4945 return class->exception_type == MONO_EXCEPTION_NONE;
4949 * mono_class_has_finalizer:
4951 * Return whenever KLASS has a finalizer, initializing klass->has_finalizer in the
4955 mono_class_has_finalizer (MonoClass *klass)
4957 if (!klass->has_finalize_inited) {
4958 MonoClass *class = klass;
4960 mono_loader_lock ();
4962 /* Interfaces and valuetypes are not supposed to have finalizers */
4963 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
4964 MonoMethod *cmethod = NULL;
4966 if (class->parent && class->parent->has_finalize) {
4967 class->has_finalize = 1;
4969 if (class->parent) {
4971 * Can't search in metadata for a method named Finalize, because that
4972 * ignores overrides.
4974 mono_class_setup_vtable (class);
4975 if (class->exception_type || mono_loader_get_last_error ())
4977 cmethod = class->vtable [finalize_slot];
4981 g_assert (class->vtable_size > finalize_slot);
4983 class->has_finalize = 0;
4984 if (class->parent) {
4985 if (cmethod->is_inflated)
4986 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4987 if (cmethod != default_finalize) {
4988 class->has_finalize = 1;
4995 mono_memory_barrier ();
4996 klass->has_finalize_inited = TRUE;
4998 mono_loader_unlock ();
5001 return klass->has_finalize;
5004 mono_loader_unlock ();
5009 mono_is_corlib_image (MonoImage *image)
5011 /* FIXME: allow the dynamic case for our compilers and with full trust */
5013 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
5015 return image == mono_defaults.corlib;
5019 * LOCKING: this assumes the loader lock is held
5022 mono_class_setup_mono_type (MonoClass *class)
5024 const char *name = class->name;
5025 const char *nspace = class->name_space;
5026 gboolean is_corlib = mono_is_corlib_image (class->image);
5028 class->this_arg.byref = 1;
5029 class->this_arg.data.klass = class;
5030 class->this_arg.type = MONO_TYPE_CLASS;
5031 class->byval_arg.data.klass = class;
5032 class->byval_arg.type = MONO_TYPE_CLASS;
5034 if (is_corlib && !strcmp (nspace, "System")) {
5035 if (!strcmp (name, "ValueType")) {
5037 * do not set the valuetype bit for System.ValueType.
5038 * class->valuetype = 1;
5040 class->blittable = TRUE;
5041 } else if (!strcmp (name, "Enum")) {
5043 * do not set the valuetype bit for System.Enum.
5044 * class->valuetype = 1;
5046 class->valuetype = 0;
5047 class->enumtype = 0;
5048 } else if (!strcmp (name, "Object")) {
5049 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
5050 } else if (!strcmp (name, "String")) {
5051 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
5052 } else if (!strcmp (name, "TypedReference")) {
5053 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
5057 if (class->valuetype) {
5058 int t = MONO_TYPE_VALUETYPE;
5060 if (is_corlib && !strcmp (nspace, "System")) {
5063 if (!strcmp (name, "Boolean")) {
5064 t = MONO_TYPE_BOOLEAN;
5065 } else if (!strcmp(name, "Byte")) {
5067 class->blittable = TRUE;
5071 if (!strcmp (name, "Char")) {
5076 if (!strcmp (name, "Double")) {
5078 class->blittable = TRUE;
5082 if (!strcmp (name, "Int32")) {
5084 class->blittable = TRUE;
5085 } else if (!strcmp(name, "Int16")) {
5087 class->blittable = TRUE;
5088 } else if (!strcmp(name, "Int64")) {
5090 class->blittable = TRUE;
5091 } else if (!strcmp(name, "IntPtr")) {
5093 class->blittable = TRUE;
5097 if (!strcmp (name, "Single")) {
5099 class->blittable = TRUE;
5100 } else if (!strcmp(name, "SByte")) {
5102 class->blittable = TRUE;
5106 if (!strcmp (name, "UInt32")) {
5108 class->blittable = TRUE;
5109 } else if (!strcmp(name, "UInt16")) {
5111 class->blittable = TRUE;
5112 } else if (!strcmp(name, "UInt64")) {
5114 class->blittable = TRUE;
5115 } else if (!strcmp(name, "UIntPtr")) {
5117 class->blittable = TRUE;
5121 if (!strcmp (name, "TypedReference")) {
5122 t = MONO_TYPE_TYPEDBYREF;
5123 class->blittable = TRUE;
5127 if (!strcmp (name, "Void")) {
5135 class->this_arg.type = class->byval_arg.type = t;
5138 if (MONO_CLASS_IS_INTERFACE (class))
5139 class->interface_id = mono_get_unique_iid (class);
5144 * COM initialization (using mono_init_com_types) is delayed until needed.
5145 * However when a [ComImport] attribute is present on a type it will trigger
5146 * the initialization. This is not a problem unless the BCL being executed
5147 * lacks the types that COM depends on (e.g. Variant on Silverlight).
5150 init_com_from_comimport (MonoClass *class)
5152 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
5153 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)) {
5154 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
5155 if (!mono_security_core_clr_determine_platform_image (class->image)) {
5156 /* but it can not be made available for application (i.e. user code) since all COM calls
5157 * are considered native calls. In this case we fail with a TypeLoadException (just like
5158 * Silverlight 2 does */
5159 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5163 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
5164 mono_init_com_types ();
5168 * LOCKING: this assumes the loader lock is held
5171 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
5173 gboolean system_namespace;
5174 gboolean is_corlib = mono_is_corlib_image (class->image);
5176 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
5178 /* if root of the hierarchy */
5179 if (system_namespace && !strcmp (class->name, "Object")) {
5180 class->parent = NULL;
5181 class->instance_size = sizeof (MonoObject);
5184 if (!strcmp (class->name, "<Module>")) {
5185 class->parent = NULL;
5186 class->instance_size = 0;
5190 if (!MONO_CLASS_IS_INTERFACE (class)) {
5191 /* Imported COM Objects always derive from __ComObject. */
5192 if (MONO_CLASS_IS_IMPORT (class)) {
5193 init_com_from_comimport (class);
5194 if (parent == mono_defaults.object_class)
5195 parent = mono_defaults.com_object_class;
5198 /* set the parent to something useful and safe, but mark the type as broken */
5199 parent = mono_defaults.object_class;
5200 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5203 class->parent = parent;
5205 if (parent->generic_class && !parent->name) {
5207 * If the parent is a generic instance, we may get
5208 * called before it is fully initialized, especially
5209 * before it has its name.
5214 class->marshalbyref = parent->marshalbyref;
5215 class->contextbound = parent->contextbound;
5216 class->delegate = parent->delegate;
5217 if (MONO_CLASS_IS_IMPORT (class))
5218 class->is_com_object = 1;
5220 class->is_com_object = parent->is_com_object;
5222 if (system_namespace) {
5223 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
5224 class->marshalbyref = 1;
5226 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
5227 class->contextbound = 1;
5229 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
5230 class->delegate = 1;
5233 if (class->parent->enumtype || (mono_is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
5234 (strcmp (class->parent->name_space, "System") == 0)))
5235 class->valuetype = 1;
5236 if (mono_is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
5237 class->valuetype = class->enumtype = 1;
5239 /*class->enumtype = class->parent->enumtype; */
5241 /* initialize com types if COM interfaces are present */
5242 if (MONO_CLASS_IS_IMPORT (class))
5243 init_com_from_comimport (class);
5244 class->parent = NULL;
5250 * mono_class_setup_supertypes:
5253 * Build the data structure needed to make fast type checks work.
5254 * This currently sets two fields in @class:
5255 * - idepth: distance between @class and System.Object in the type
5257 * - supertypes: array of classes: each element has a class in the hierarchy
5258 * starting from @class up to System.Object
5260 * LOCKING: this assumes the loader lock is held
5263 mono_class_setup_supertypes (MonoClass *class)
5266 MonoClass **supertypes;
5268 if (class->supertypes)
5271 if (class->parent && !class->parent->supertypes)
5272 mono_class_setup_supertypes (class->parent);
5274 class->idepth = class->parent->idepth + 1;
5278 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
5279 supertypes = mono_class_alloc0 (class, sizeof (MonoClass *) * ms);
5281 if (class->parent) {
5282 supertypes [class->idepth - 1] = class;
5283 memcpy (supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
5285 supertypes [0] = class;
5288 mono_atomic_store_release (&class->supertypes, supertypes);
5292 * mono_class_create_from_typedef:
5293 * @image: image where the token is valid
5294 * @type_token: typedef token
5296 * Create the MonoClass* representing the specified type token.
5297 * @type_token must be a TypeDef token.
5299 * FIXME: don't return NULL on failure, just the the caller figure it out.
5302 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
5304 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5305 MonoClass *class, *parent = NULL;
5306 guint32 cols [MONO_TYPEDEF_SIZE];
5307 guint32 cols_next [MONO_TYPEDEF_SIZE];
5308 guint tidx = mono_metadata_token_index (type_token);
5309 MonoGenericContext *context = NULL;
5310 const char *name, *nspace;
5312 MonoClass **interfaces;
5313 guint32 field_last, method_last;
5314 guint32 nesting_tokeen;
5316 if (mono_metadata_token_table (type_token) != MONO_TABLE_TYPEDEF || tidx > tt->rows)
5319 mono_loader_lock ();
5321 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
5322 mono_loader_unlock ();
5326 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5328 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5329 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5331 class = mono_image_alloc0 (image, sizeof (MonoClass));
5334 class->name_space = nspace;
5336 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5338 class->image = image;
5339 class->type_token = type_token;
5340 class->flags = cols [MONO_TYPEDEF_FLAGS];
5342 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
5344 classes_size += sizeof (MonoClass);
5347 * Check whether we're a generic type definition.
5349 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
5350 if (class->generic_container) {
5351 class->is_generic = 1;
5352 class->generic_container->owner.klass = class;
5353 context = &class->generic_container->context;
5356 if (cols [MONO_TYPEDEF_EXTENDS]) {
5358 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
5360 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
5361 /*WARNING: this must satisfy mono_metadata_type_hash*/
5362 class->this_arg.byref = 1;
5363 class->this_arg.data.klass = class;
5364 class->this_arg.type = MONO_TYPE_CLASS;
5365 class->byval_arg.data.klass = class;
5366 class->byval_arg.type = MONO_TYPE_CLASS;
5368 parent = mono_class_get_full (image, parent_token, context);
5370 if (parent == NULL){
5371 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load parent type"));
5372 mono_loader_clear_error ();
5373 goto parent_failure;
5376 for (tmp = parent; tmp; tmp = tmp->parent) {
5378 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cycle found while resolving parent"));
5379 goto parent_failure;
5381 if (class->generic_container && tmp->generic_class && tmp->generic_class->container_class == class) {
5382 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Parent extends generic instance of this type"));
5383 goto parent_failure;
5388 mono_class_setup_parent (class, parent);
5390 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5391 mono_class_setup_mono_type (class);
5394 * This might access class->byval_arg for recursion generated by generic constraints,
5395 * so it has to come after setup_mono_type ().
5397 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token))) {
5398 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
5399 if (!class->nested_in) {
5400 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load nestedin type"));
5401 mono_loader_unlock ();
5402 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5407 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
5411 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
5415 class->cast_class = class->element_class = class;
5417 if (!class->enumtype) {
5418 if (!mono_metadata_interfaces_from_typedef_full (
5419 image, type_token, &interfaces, &icount, FALSE, context)){
5420 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load interfaces"));
5421 mono_loader_unlock ();
5422 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5426 class->interfaces = interfaces;
5427 class->interface_count = icount;
5428 class->interfaces_inited = 1;
5431 /*g_print ("Load class %s\n", name);*/
5434 * Compute the field and method lists
5436 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
5437 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
5439 if (tt->rows > tidx){
5440 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
5441 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
5442 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
5444 field_last = image->tables [MONO_TABLE_FIELD].rows;
5445 method_last = image->tables [MONO_TABLE_METHOD].rows;
5448 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
5449 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
5450 class->field.count = field_last - class->field.first;
5452 class->field.count = 0;
5454 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
5455 class->method.count = method_last - class->method.first;
5457 class->method.count = 0;
5459 /* reserve space to store vector pointer in arrays */
5460 if (mono_is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
5461 class->instance_size += 2 * sizeof (gpointer);
5462 g_assert (class->field.count == 0);
5465 if (class->enumtype) {
5466 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
5467 if (!enum_basetype) {
5468 /*set it to a default value as the whole runtime can't handle this to be null*/
5469 class->cast_class = class->element_class = mono_defaults.int32_class;
5470 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5471 mono_loader_unlock ();
5472 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5475 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
5479 * If we're a generic type definition, load the constraints.
5480 * We must do this after the class has been constructed to make certain recursive scenarios
5483 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
5484 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
5485 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
5486 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
5487 g_free (class_name);
5488 mono_loader_unlock ();
5489 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5493 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
5494 if (!strncmp (name, "Vector", 6))
5495 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");
5498 mono_loader_unlock ();
5500 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5505 mono_class_setup_mono_type (class);
5506 mono_loader_unlock ();
5507 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5512 /** is klass Nullable<T>? */
5514 mono_class_is_nullable (MonoClass *klass)
5516 return klass->generic_class != NULL &&
5517 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
5521 /** if klass is T? return T */
5523 mono_class_get_nullable_param (MonoClass *klass)
5525 g_assert (mono_class_is_nullable (klass));
5526 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
5530 * Create the `MonoClass' for an instantiation of a generic type.
5531 * We only do this if we actually need it.
5534 mono_generic_class_get_class (MonoGenericClass *gclass)
5536 MonoClass *klass, *gklass;
5538 if (gclass->cached_class)
5539 return gclass->cached_class;
5541 mono_loader_lock ();
5542 if (gclass->cached_class) {
5543 mono_loader_unlock ();
5544 return gclass->cached_class;
5547 klass = mono_image_set_alloc0 (gclass->owner, sizeof (MonoClass));
5549 gklass = gclass->container_class;
5551 if (gklass->nested_in) {
5552 /* The nested_in type should not be inflated since it's possible to produce a nested type with less generic arguments*/
5553 klass->nested_in = gklass->nested_in;
5556 klass->name = gklass->name;
5557 klass->name_space = gklass->name_space;
5559 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5561 klass->image = gklass->image;
5562 klass->flags = gklass->flags;
5563 klass->type_token = gklass->type_token;
5564 klass->field.count = gklass->field.count;
5566 klass->is_inflated = 1;
5567 klass->generic_class = gclass;
5569 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
5570 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
5571 klass->this_arg.byref = TRUE;
5572 klass->enumtype = gklass->enumtype;
5573 klass->valuetype = gklass->valuetype;
5575 klass->cast_class = klass->element_class = klass;
5577 if (mono_class_is_nullable (klass))
5578 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
5581 * We're not interested in the nested classes of a generic instance.
5582 * We use the generic type definition to look for nested classes.
5585 if (gklass->parent) {
5587 klass->parent = mono_class_inflate_generic_class_checked (gklass->parent, mono_generic_class_get_context (gclass), &error);
5588 if (!mono_error_ok (&error)) {
5589 /*Set parent to something safe as the runtime doesn't handle well this kind of failure.*/
5590 klass->parent = mono_defaults.object_class;
5591 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
5592 mono_error_cleanup (&error);
5597 mono_class_setup_parent (klass, klass->parent);
5599 if (klass->enumtype) {
5600 klass->cast_class = gklass->cast_class;
5601 klass->element_class = gklass->element_class;
5604 if (gclass->is_dynamic) {
5607 mono_class_setup_supertypes (klass);
5609 if (klass->enumtype) {
5611 * For enums, gklass->fields might not been set, but instance_size etc. is
5612 * already set in mono_reflection_create_internal_class (). For non-enums,
5613 * these will be computed normally in mono_class_layout_fields ().
5615 klass->instance_size = gklass->instance_size;
5616 klass->sizes.class_size = gklass->sizes.class_size;
5617 klass->size_inited = 1;
5621 mono_memory_barrier ();
5622 gclass->cached_class = klass;
5624 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5626 inflated_classes ++;
5627 inflated_classes_size += sizeof (MonoClass);
5629 mono_loader_unlock ();
5635 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
5637 MonoClass *klass, **ptr;
5639 MonoGenericContainer *container = mono_generic_param_owner (param);
5643 image = mono_defaults.corlib;
5645 klass = mono_image_alloc0 (image, sizeof (MonoClass));
5646 classes_size += sizeof (MonoClass);
5649 klass->name = pinfo->name;
5651 int n = mono_generic_param_num (param);
5652 klass->name = mono_image_alloc0 (image, 16);
5653 sprintf ((char*)klass->name, "%d", n);
5658 MonoMethod *omethod = container->owner.method;
5659 klass->name_space = (omethod && omethod->klass) ? omethod->klass->name_space : "";
5661 MonoClass *oklass = container->owner.klass;
5662 klass->name_space = oklass ? oklass->name_space : "";
5665 klass->name_space = "";
5668 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5672 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
5676 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
5677 klass->parent = pinfo->constraints [0];
5679 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
5680 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
5682 klass->parent = mono_defaults.object_class;
5685 if (count - pos > 0) {
5686 klass->interface_count = count - pos;
5687 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
5688 klass->interfaces_inited = TRUE;
5689 for (i = pos; i < count; i++)
5690 klass->interfaces [i - pos] = pinfo->constraints [i];
5693 klass->image = image;
5695 klass->inited = TRUE;
5696 klass->cast_class = klass->element_class = klass;
5697 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
5699 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5700 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
5701 klass->this_arg.byref = TRUE;
5703 /* We don't use type_token for VAR since only classes can use it (not arrays, pointer, VARs, etc) */
5704 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
5706 /*Init these fields to sane values*/
5707 klass->min_align = 1;
5708 klass->instance_size = sizeof (gpointer);
5709 klass->size_inited = 1;
5711 mono_class_setup_supertypes (klass);
5713 if (count - pos > 0) {
5714 mono_class_setup_vtable (klass->parent);
5715 if (klass->parent->exception_type)
5716 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to setup parent interfaces"));
5718 setup_interface_offsets (klass, klass->parent->vtable_size);
5724 #define FAST_CACHE_SIZE 16
5727 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
5729 int n = mono_generic_param_num (param);
5730 MonoImage *image = param->image;
5735 if (n < FAST_CACHE_SIZE) {
5737 return image->mvar_cache_fast ? image->mvar_cache_fast [n] : NULL;
5739 return image->var_cache_fast ? image->var_cache_fast [n] : NULL;
5741 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5742 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
5747 * LOCKING: Acquires the loader lock.
5750 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
5752 int n = mono_generic_param_num (param);
5753 MonoImage *image = param->image;
5758 if (n < FAST_CACHE_SIZE) {
5760 /* No locking needed */
5761 if (!image->mvar_cache_fast)
5762 image->mvar_cache_fast = mono_image_alloc0 (image, sizeof (MonoClass*) * FAST_CACHE_SIZE);
5763 image->mvar_cache_fast [n] = klass;
5765 if (!image->var_cache_fast)
5766 image->var_cache_fast = mono_image_alloc0 (image, sizeof (MonoClass*) * FAST_CACHE_SIZE);
5767 image->var_cache_fast [n] = klass;
5771 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5773 mono_loader_lock ();
5774 ht = is_mvar ? image->mvar_cache_slow : image->var_cache_slow;
5776 ht = g_hash_table_new (NULL, NULL);
5777 mono_memory_barrier ();
5779 image->mvar_cache_slow = ht;
5781 image->var_cache_slow = ht;
5783 mono_loader_unlock ();
5786 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
5790 * LOCKING: Acquires the loader lock.
5793 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
5795 MonoGenericContainer *container = mono_generic_param_owner (param);
5796 MonoGenericParamInfo *pinfo;
5799 mono_loader_lock ();
5802 pinfo = mono_generic_param_info (param);
5803 if (pinfo->pklass) {
5804 mono_loader_unlock ();
5805 return pinfo->pklass;
5811 klass = get_anon_gparam_class (param, is_mvar);
5813 mono_loader_unlock ();
5818 if (!image && container) {
5820 MonoMethod *method = container->owner.method;
5821 image = (method && method->klass) ? method->klass->image : NULL;
5823 MonoClass *klass = container->owner.klass;
5824 // FIXME: 'klass' should not be null
5825 // But, monodis creates GenericContainers without associating a owner to it
5826 image = klass ? klass->image : NULL;
5830 klass = make_generic_param_class (param, image, is_mvar, pinfo);
5832 mono_memory_barrier ();
5835 pinfo->pklass = klass;
5837 set_anon_gparam_class (param, is_mvar, klass);
5839 mono_loader_unlock ();
5841 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5842 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5848 mono_ptr_class_get (MonoType *type)
5851 MonoClass *el_class;
5855 el_class = mono_class_from_mono_type (type);
5856 image = el_class->image;
5858 mono_loader_lock ();
5860 if (!image->ptr_cache)
5861 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5863 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
5864 mono_loader_unlock ();
5867 result = mono_image_alloc0 (image, sizeof (MonoClass));
5869 classes_size += sizeof (MonoClass);
5871 result->parent = NULL; /* no parent for PTR types */
5872 result->name_space = el_class->name_space;
5873 name = g_strdup_printf ("%s*", el_class->name);
5874 result->name = mono_image_strdup (image, name);
5877 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5879 result->image = el_class->image;
5880 result->inited = TRUE;
5881 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5882 /* Can pointers get boxed? */
5883 result->instance_size = sizeof (gpointer);
5884 result->cast_class = result->element_class = el_class;
5885 result->blittable = TRUE;
5887 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
5888 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
5889 result->this_arg.byref = TRUE;
5891 mono_class_setup_supertypes (result);
5893 g_hash_table_insert (image->ptr_cache, el_class, result);
5895 mono_loader_unlock ();
5897 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5903 mono_fnptr_class_get (MonoMethodSignature *sig)
5906 static GHashTable *ptr_hash = NULL;
5908 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5910 mono_loader_lock ();
5913 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5915 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
5916 mono_loader_unlock ();
5919 result = g_new0 (MonoClass, 1);
5921 result->parent = NULL; /* no parent for PTR types */
5922 result->name_space = "System";
5923 result->name = "MonoFNPtrFakeClass";
5925 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5927 result->image = mono_defaults.corlib; /* need to fix... */
5928 result->inited = TRUE;
5929 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5930 /* Can pointers get boxed? */
5931 result->instance_size = sizeof (gpointer);
5932 result->cast_class = result->element_class = result;
5933 result->blittable = TRUE;
5935 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
5936 result->this_arg.data.method = result->byval_arg.data.method = sig;
5937 result->this_arg.byref = TRUE;
5938 result->blittable = TRUE;
5940 mono_class_setup_supertypes (result);
5942 g_hash_table_insert (ptr_hash, sig, result);
5944 mono_loader_unlock ();
5946 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5952 mono_class_from_mono_type (MonoType *type)
5954 switch (type->type) {
5955 case MONO_TYPE_OBJECT:
5956 return type->data.klass? type->data.klass: mono_defaults.object_class;
5957 case MONO_TYPE_VOID:
5958 return type->data.klass? type->data.klass: mono_defaults.void_class;
5959 case MONO_TYPE_BOOLEAN:
5960 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
5961 case MONO_TYPE_CHAR:
5962 return type->data.klass? type->data.klass: mono_defaults.char_class;
5964 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
5966 return type->data.klass? type->data.klass: mono_defaults.byte_class;
5968 return type->data.klass? type->data.klass: mono_defaults.int16_class;
5970 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
5972 return type->data.klass? type->data.klass: mono_defaults.int32_class;
5974 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
5976 return type->data.klass? type->data.klass: mono_defaults.int_class;
5978 return type->data.klass? type->data.klass: mono_defaults.uint_class;
5980 return type->data.klass? type->data.klass: mono_defaults.int64_class;
5982 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
5984 return type->data.klass? type->data.klass: mono_defaults.single_class;
5986 return type->data.klass? type->data.klass: mono_defaults.double_class;
5987 case MONO_TYPE_STRING:
5988 return type->data.klass? type->data.klass: mono_defaults.string_class;
5989 case MONO_TYPE_TYPEDBYREF:
5990 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
5991 case MONO_TYPE_ARRAY:
5992 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
5994 return mono_ptr_class_get (type->data.type);
5995 case MONO_TYPE_FNPTR:
5996 return mono_fnptr_class_get (type->data.method);
5997 case MONO_TYPE_SZARRAY:
5998 return mono_array_class_get (type->data.klass, 1);
5999 case MONO_TYPE_CLASS:
6000 case MONO_TYPE_VALUETYPE:
6001 return type->data.klass;
6002 case MONO_TYPE_GENERICINST:
6003 return mono_generic_class_get_class (type->data.generic_class);
6005 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
6006 case MONO_TYPE_MVAR:
6007 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
6009 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
6010 g_assert_not_reached ();
6017 * mono_type_retrieve_from_typespec
6018 * @image: context where the image is created
6019 * @type_spec: typespec token
6020 * @context: the generic context used to evaluate generic instantiations in
6023 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate, MonoError *error)
6025 MonoType *t = mono_type_create_from_typespec (image, type_spec);
6027 mono_error_init (error);
6028 *did_inflate = FALSE;
6031 char *name = mono_class_name_from_token (image, type_spec);
6032 char *assembly = mono_assembly_name_from_token (image, type_spec);
6033 mono_error_set_type_load_name (error, name, assembly, "Could not resolve typespec token %08x", type_spec);
6037 if (context && (context->class_inst || context->method_inst)) {
6038 MonoType *inflated = inflate_generic_type (NULL, t, context, error);
6040 if (!mono_error_ok (error))
6045 *did_inflate = TRUE;
6052 * mono_class_create_from_typespec
6053 * @image: context where the image is created
6054 * @type_spec: typespec token
6055 * @context: the generic context used to evaluate generic instantiations in
6058 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, MonoError *error)
6061 gboolean inflated = FALSE;
6062 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated, error);
6063 if (!mono_error_ok (error))
6065 ret = mono_class_from_mono_type (t);
6067 mono_metadata_free_type (t);
6072 * mono_bounded_array_class_get:
6073 * @element_class: element class
6074 * @rank: the dimension of the array class
6075 * @bounded: whenever the array has non-zero bounds
6077 * Returns: a class object describing the array with element type @element_type and
6081 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
6085 MonoClass *parent = NULL;
6086 GSList *list, *rootlist = NULL;
6089 gboolean corlib_type = FALSE;
6091 g_assert (rank <= 255);
6094 /* bounded only matters for one-dimensional arrays */
6097 image = eclass->image;
6099 if (rank == 1 && !bounded) {
6101 * This case is very frequent not just during compilation because of calls
6102 * from mono_class_from_mono_type (), mono_array_new (),
6103 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
6105 EnterCriticalSection (&image->szarray_cache_lock);
6106 if (!image->szarray_cache)
6107 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
6108 class = g_hash_table_lookup (image->szarray_cache, eclass);
6109 LeaveCriticalSection (&image->szarray_cache_lock);
6113 mono_loader_lock ();
6115 mono_loader_lock ();
6117 if (!image->array_cache)
6118 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
6120 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
6121 for (; list; list = list->next) {
6123 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
6124 mono_loader_unlock ();
6131 /* for the building corlib use System.Array from it */
6132 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
6133 parent = mono_class_from_name (image, "System", "Array");
6136 parent = mono_defaults.array_class;
6137 if (!parent->inited)
6138 mono_class_init (parent);
6141 class = mono_image_alloc0 (image, sizeof (MonoClass));
6143 class->image = image;
6144 class->name_space = eclass->name_space;
6145 nsize = strlen (eclass->name);
6146 name = g_malloc (nsize + 2 + rank + 1);
6147 memcpy (name, eclass->name, nsize);
6150 memset (name + nsize + 1, ',', rank - 1);
6152 name [nsize + rank] = '*';
6153 name [nsize + rank + bounded] = ']';
6154 name [nsize + rank + bounded + 1] = 0;
6155 class->name = mono_image_strdup (image, name);
6158 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
6160 classes_size += sizeof (MonoClass);
6162 class->type_token = 0;
6163 /* all arrays are marked serializable and sealed, bug #42779 */
6164 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED | TYPE_ATTRIBUTE_PUBLIC;
6165 class->parent = parent;
6166 class->instance_size = mono_class_instance_size (class->parent);
6168 if (eclass->byval_arg.type == MONO_TYPE_TYPEDBYREF || eclass->byval_arg.type == MONO_TYPE_VOID) {
6169 /*Arrays of those two types are invalid.*/
6170 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6171 } else if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
6172 if (!eclass->ref_info_handle || eclass->wastypebuilder) {
6173 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
6174 g_assert (eclass->ref_info_handle && !eclass->wastypebuilder);
6176 /* element_size -1 is ok as this is not an instantitable type*/
6177 class->sizes.element_size = -1;
6179 class->sizes.element_size = mono_class_array_element_size (eclass);
6181 mono_class_setup_supertypes (class);
6183 if (eclass->generic_class)
6184 mono_class_init (eclass);
6185 if (!eclass->size_inited)
6186 mono_class_setup_fields (eclass);
6187 if (eclass->exception_type) /*FIXME we fail the array type, but we have to let other fields be set.*/
6188 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6190 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
6194 if (eclass->enumtype)
6195 class->cast_class = eclass->element_class;
6197 class->cast_class = eclass;
6199 switch (class->cast_class->byval_arg.type) {
6201 class->cast_class = mono_defaults.byte_class;
6204 class->cast_class = mono_defaults.int16_class;
6207 #if SIZEOF_VOID_P == 4
6211 class->cast_class = mono_defaults.int32_class;
6214 #if SIZEOF_VOID_P == 8
6218 class->cast_class = mono_defaults.int64_class;
6222 class->element_class = eclass;
6224 if ((rank > 1) || bounded) {
6225 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
6226 class->byval_arg.type = MONO_TYPE_ARRAY;
6227 class->byval_arg.data.array = at;
6228 at->eklass = eclass;
6230 /* FIXME: complete.... */
6232 class->byval_arg.type = MONO_TYPE_SZARRAY;
6233 class->byval_arg.data.klass = eclass;
6235 class->this_arg = class->byval_arg;
6236 class->this_arg.byref = 1;
6241 class->generic_container = eclass->generic_container;
6243 if (rank == 1 && !bounded) {
6244 MonoClass *prev_class;
6246 EnterCriticalSection (&image->szarray_cache_lock);
6247 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
6249 /* Someone got in before us */
6252 g_hash_table_insert (image->szarray_cache, eclass, class);
6253 LeaveCriticalSection (&image->szarray_cache_lock);
6255 list = g_slist_append (rootlist, class);
6256 g_hash_table_insert (image->array_cache, eclass, list);
6259 mono_loader_unlock ();
6261 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
6267 * mono_array_class_get:
6268 * @element_class: element class
6269 * @rank: the dimension of the array class
6271 * Returns: a class object describing the array with element type @element_type and
6275 mono_array_class_get (MonoClass *eclass, guint32 rank)
6277 return mono_bounded_array_class_get (eclass, rank, FALSE);
6281 * mono_class_instance_size:
6284 * Returns: the size of an object instance
6287 mono_class_instance_size (MonoClass *klass)
6289 if (!klass->size_inited)
6290 mono_class_init (klass);
6292 return klass->instance_size;
6296 * mono_class_min_align:
6299 * Returns: minimm alignment requirements
6302 mono_class_min_align (MonoClass *klass)
6304 if (!klass->size_inited)
6305 mono_class_init (klass);
6307 return klass->min_align;
6311 * mono_class_value_size:
6314 * This function is used for value types, and return the
6315 * space and the alignment to store that kind of value object.
6317 * Returns: the size of a value of kind @klass
6320 mono_class_value_size (MonoClass *klass, guint32 *align)
6324 /* fixme: check disable, because we still have external revereces to
6325 * mscorlib and Dummy Objects
6327 /*g_assert (klass->valuetype);*/
6329 size = mono_class_instance_size (klass) - sizeof (MonoObject);
6332 *align = klass->min_align;
6338 * mono_class_data_size:
6341 * Returns: the size of the static class data
6344 mono_class_data_size (MonoClass *klass)
6347 mono_class_init (klass);
6349 /* in arrays, sizes.class_size is unioned with element_size
6350 * and arrays have no static fields
6354 return klass->sizes.class_size;
6358 * Auxiliary routine to mono_class_get_field
6360 * Takes a field index instead of a field token.
6362 static MonoClassField *
6363 mono_class_get_field_idx (MonoClass *class, int idx)
6365 mono_class_setup_fields_locking (class);
6366 if (class->exception_type)
6370 if (class->image->uncompressed_metadata) {
6372 * class->field.first points to the FieldPtr table, while idx points into the
6373 * Field table, so we have to do a search.
6375 /*FIXME this is broken for types with multiple fields with the same name.*/
6376 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
6379 for (i = 0; i < class->field.count; ++i)
6380 if (mono_field_get_name (&class->fields [i]) == name)
6381 return &class->fields [i];
6382 g_assert_not_reached ();
6384 if (class->field.count) {
6385 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
6386 return &class->fields [idx - class->field.first];
6390 class = class->parent;
6396 * mono_class_get_field:
6397 * @class: the class to lookup the field.
6398 * @field_token: the field token
6400 * Returns: A MonoClassField representing the type and offset of
6401 * the field, or a NULL value if the field does not belong to this
6405 mono_class_get_field (MonoClass *class, guint32 field_token)
6407 int idx = mono_metadata_token_index (field_token);
6409 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
6411 return mono_class_get_field_idx (class, idx - 1);
6415 * mono_class_get_field_from_name:
6416 * @klass: the class to lookup the field.
6417 * @name: the field name
6419 * Search the class @klass and it's parents for a field with the name @name.
6421 * Returns: the MonoClassField pointer of the named field or NULL
6424 mono_class_get_field_from_name (MonoClass *klass, const char *name)
6426 return mono_class_get_field_from_name_full (klass, name, NULL);
6430 * mono_class_get_field_from_name_full:
6431 * @klass: the class to lookup the field.
6432 * @name: the field name
6433 * @type: the type of the fields. This optional.
6435 * Search the class @klass and it's parents for a field with the name @name and type @type.
6437 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
6438 * of its generic type definition.
6440 * Returns: the MonoClassField pointer of the named field or NULL
6443 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
6447 mono_class_setup_fields_locking (klass);
6448 if (klass->exception_type)
6452 for (i = 0; i < klass->field.count; ++i) {
6453 MonoClassField *field = &klass->fields [i];
6455 if (strcmp (name, mono_field_get_name (field)) != 0)
6459 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
6460 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
6465 klass = klass->parent;
6471 * mono_class_get_field_token:
6472 * @field: the field we need the token of
6474 * Get the token of a field. Note that the tokesn is only valid for the image
6475 * the field was loaded from. Don't use this function for fields in dynamic types.
6477 * Returns: the token representing the field in the image it was loaded from.
6480 mono_class_get_field_token (MonoClassField *field)
6482 MonoClass *klass = field->parent;
6485 mono_class_setup_fields_locking (klass);
6490 for (i = 0; i < klass->field.count; ++i) {
6491 if (&klass->fields [i] == field) {
6492 int idx = klass->field.first + i + 1;
6494 if (klass->image->uncompressed_metadata)
6495 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
6496 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
6499 klass = klass->parent;
6502 g_assert_not_reached ();
6507 mono_field_get_index (MonoClassField *field)
6509 int index = field - field->parent->fields;
6511 g_assert (index >= 0 && index < field->parent->field.count);
6517 * mono_class_get_field_default_value:
6519 * Return the default value of the field as a pointer into the metadata blob.
6522 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
6525 guint32 constant_cols [MONO_CONSTANT_SIZE];
6527 MonoClass *klass = field->parent;
6529 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
6531 if (!klass->ext || !klass->ext->field_def_values) {
6532 mono_loader_lock ();
6533 mono_class_alloc_ext (klass);
6534 if (!klass->ext->field_def_values)
6535 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
6536 mono_loader_unlock ();
6539 field_index = mono_field_get_index (field);
6541 if (!klass->ext->field_def_values [field_index].data) {
6542 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
6546 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
6548 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6549 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
6550 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
6553 *def_type = klass->ext->field_def_values [field_index].def_type;
6554 return klass->ext->field_def_values [field_index].data;
6558 mono_property_get_index (MonoProperty *prop)
6560 int index = prop - prop->parent->ext->properties;
6562 g_assert (index >= 0 && index < prop->parent->ext->property.count);
6568 * mono_class_get_property_default_value:
6570 * Return the default value of the field as a pointer into the metadata blob.
6573 mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type)
6576 guint32 constant_cols [MONO_CONSTANT_SIZE];
6577 MonoClass *klass = property->parent;
6579 g_assert (property->attrs & PROPERTY_ATTRIBUTE_HAS_DEFAULT);
6581 * We don't cache here because it is not used by C# so it's quite rare, but
6582 * we still do the lookup in klass->ext because that is where the data
6583 * is stored for dynamic assemblies.
6586 if (klass->image->dynamic) {
6587 int prop_index = mono_property_get_index (property);
6588 if (klass->ext->prop_def_values && klass->ext->prop_def_values [prop_index].data) {
6589 *def_type = klass->ext->prop_def_values [prop_index].def_type;
6590 return klass->ext->prop_def_values [prop_index].data;
6594 cindex = mono_metadata_get_constant_index (klass->image, mono_class_get_property_token (property), 0);
6598 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6599 *def_type = constant_cols [MONO_CONSTANT_TYPE];
6600 return (gpointer)mono_metadata_blob_heap (klass->image, constant_cols [MONO_CONSTANT_VALUE]);
6604 mono_class_get_event_token (MonoEvent *event)
6606 MonoClass *klass = event->parent;
6611 for (i = 0; i < klass->ext->event.count; ++i) {
6612 if (&klass->ext->events [i] == event)
6613 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
6616 klass = klass->parent;
6619 g_assert_not_reached ();
6624 mono_class_get_property_from_name (MonoClass *klass, const char *name)
6628 gpointer iter = NULL;
6629 while ((p = mono_class_get_properties (klass, &iter))) {
6630 if (! strcmp (name, p->name))
6633 klass = klass->parent;
6639 mono_class_get_property_token (MonoProperty *prop)
6641 MonoClass *klass = prop->parent;
6645 gpointer iter = NULL;
6646 while ((p = mono_class_get_properties (klass, &iter))) {
6647 if (&klass->ext->properties [i] == prop)
6648 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
6652 klass = klass->parent;
6655 g_assert_not_reached ();
6660 mono_class_name_from_token (MonoImage *image, guint32 type_token)
6662 const char *name, *nspace;
6664 return g_strdup_printf ("DynamicType 0x%08x", type_token);
6666 switch (type_token & 0xff000000){
6667 case MONO_TOKEN_TYPE_DEF: {
6668 guint32 cols [MONO_TYPEDEF_SIZE];
6669 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
6670 guint tidx = mono_metadata_token_index (type_token);
6672 if (tidx > tt->rows)
6673 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6675 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
6676 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6677 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6678 if (strlen (nspace) == 0)
6679 return g_strdup_printf ("%s", name);
6681 return g_strdup_printf ("%s.%s", nspace, name);
6684 case MONO_TOKEN_TYPE_REF: {
6686 guint32 cols [MONO_TYPEREF_SIZE];
6687 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6688 guint tidx = mono_metadata_token_index (type_token);
6691 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6693 if (!mono_verifier_verify_typeref_row (image, tidx - 1, &error)) {
6694 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6695 mono_error_cleanup (&error);
6699 mono_metadata_decode_row (t, tidx-1, cols, MONO_TYPEREF_SIZE);
6700 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
6701 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
6702 if (strlen (nspace) == 0)
6703 return g_strdup_printf ("%s", name);
6705 return g_strdup_printf ("%s.%s", nspace, name);
6708 case MONO_TOKEN_TYPE_SPEC:
6709 return g_strdup_printf ("Typespec 0x%08x", type_token);
6711 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6716 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
6719 return g_strdup_printf ("DynamicAssembly %s", image->name);
6721 switch (type_token & 0xff000000){
6722 case MONO_TOKEN_TYPE_DEF:
6723 if (image->assembly)
6724 return mono_stringify_assembly_name (&image->assembly->aname);
6725 else if (image->assembly_name)
6726 return g_strdup (image->assembly_name);
6727 return g_strdup_printf ("%s", image->name ? image->name : "[Could not resolve assembly name");
6728 case MONO_TOKEN_TYPE_REF: {
6730 MonoAssemblyName aname;
6731 guint32 cols [MONO_TYPEREF_SIZE];
6732 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6733 guint32 idx = mono_metadata_token_index (type_token);
6736 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6738 if (!mono_verifier_verify_typeref_row (image, idx - 1, &error)) {
6739 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6740 mono_error_cleanup (&error);
6743 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPEREF_SIZE);
6745 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
6746 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
6747 case MONO_RESOLTION_SCOPE_MODULE:
6749 return g_strdup ("");
6750 case MONO_RESOLTION_SCOPE_MODULEREF:
6752 return g_strdup ("");
6753 case MONO_RESOLTION_SCOPE_TYPEREF:
6755 return g_strdup ("");
6756 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
6757 mono_assembly_get_assemblyref (image, idx - 1, &aname);
6758 return mono_stringify_assembly_name (&aname);
6760 g_assert_not_reached ();
6764 case MONO_TOKEN_TYPE_SPEC:
6766 return g_strdup ("");
6768 g_assert_not_reached ();
6775 * mono_class_get_full:
6776 * @image: the image where the class resides
6777 * @type_token: the token for the class
6778 * @context: the generic context used to evaluate generic instantiations in
6780 * Returns: the MonoClass that represents @type_token in @image
6783 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6786 MonoClass *class = NULL;
6788 if (image->dynamic) {
6789 int table = mono_metadata_token_table (type_token);
6791 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
6792 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6795 return mono_lookup_dynamic_token (image, type_token, context);
6798 switch (type_token & 0xff000000){
6799 case MONO_TOKEN_TYPE_DEF:
6800 class = mono_class_create_from_typedef (image, type_token);
6802 case MONO_TOKEN_TYPE_REF:
6803 class = mono_class_from_typeref (image, type_token);
6805 case MONO_TOKEN_TYPE_SPEC:
6806 class = mono_class_create_from_typespec (image, type_token, context, &error);
6807 if (!mono_error_ok (&error)) {
6808 /*FIXME don't swallow the error message*/
6809 mono_error_cleanup (&error);
6813 g_warning ("unknown token type %x", type_token & 0xff000000);
6814 g_assert_not_reached ();
6818 char *name = mono_class_name_from_token (image, type_token);
6819 char *assembly = mono_assembly_name_from_token (image, type_token);
6820 mono_loader_set_error_type_load (name, assembly);
6830 * mono_type_get_full:
6831 * @image: the image where the type resides
6832 * @type_token: the token for the type
6833 * @context: the generic context used to evaluate generic instantiations in
6835 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6837 * Returns: the MonoType that represents @type_token in @image
6840 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6843 MonoType *type = NULL;
6844 gboolean inflated = FALSE;
6846 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6848 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
6850 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
6851 MonoClass *class = mono_class_get_full (image, type_token, context);
6852 return class ? mono_class_get_type (class) : NULL;
6855 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated, &error);
6857 if (!mono_error_ok (&error)) {
6858 /*FIXME don't swalloc the error message.*/
6859 char *name = mono_class_name_from_token (image, type_token);
6860 char *assembly = mono_assembly_name_from_token (image, type_token);
6862 g_warning ("Error loading type %s from %s due to %s", name, assembly, mono_error_get_message (&error));
6864 mono_error_cleanup (&error);
6865 mono_loader_set_error_type_load (name, assembly);
6870 MonoType *tmp = type;
6871 type = mono_class_get_type (mono_class_from_mono_type (type));
6872 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6873 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6874 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6876 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6878 if (type->type != tmp->type)
6881 mono_metadata_free_type (tmp);
6888 mono_class_get (MonoImage *image, guint32 type_token)
6890 return mono_class_get_full (image, type_token, NULL);
6894 * mono_image_init_name_cache:
6896 * Initializes the class name cache stored in image->name_cache.
6898 * LOCKING: Acquires the corresponding image lock.
6901 mono_image_init_name_cache (MonoImage *image)
6903 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6904 guint32 cols [MONO_TYPEDEF_SIZE];
6907 guint32 i, visib, nspace_index;
6908 GHashTable *name_cache2, *nspace_table;
6910 mono_image_lock (image);
6912 if (image->name_cache) {
6913 mono_image_unlock (image);
6917 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
6919 if (image->dynamic) {
6920 mono_image_unlock (image);
6924 /* Temporary hash table to avoid lookups in the nspace_table */
6925 name_cache2 = g_hash_table_new (NULL, NULL);
6927 for (i = 1; i <= t->rows; ++i) {
6928 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6929 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6931 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6932 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6934 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6936 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6937 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6939 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
6940 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6941 if (!nspace_table) {
6942 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6943 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6944 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6947 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
6950 /* Load type names from EXPORTEDTYPES table */
6952 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6953 guint32 cols [MONO_EXP_TYPE_SIZE];
6956 for (i = 0; i < t->rows; ++i) {
6957 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
6958 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
6959 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
6961 nspace_index = cols [MONO_EXP_TYPE_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 (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
6973 g_hash_table_destroy (name_cache2);
6974 mono_image_unlock (image);
6977 /*FIXME Only dynamic assemblies should allow this operation.*/
6979 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
6980 const char *name, guint32 index)
6982 GHashTable *nspace_table;
6983 GHashTable *name_cache;
6986 mono_image_lock (image);
6988 if (!image->name_cache)
6989 mono_image_init_name_cache (image);
6991 name_cache = image->name_cache;
6992 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
6993 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6994 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
6997 if ((old_index = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, (char*) name))))
6998 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index, image->name, nspace, name);
7000 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
7002 mono_image_unlock (image);
7011 find_nocase (gpointer key, gpointer value, gpointer user_data)
7013 char *name = (char*)key;
7014 FindUserData *data = (FindUserData*)user_data;
7016 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
7017 data->value = value;
7021 * mono_class_from_name_case:
7022 * @image: The MonoImage where the type is looked up in
7023 * @name_space: the type namespace
7024 * @name: the type short name.
7026 * Obtains a MonoClass with a given namespace and a given name which
7027 * is located in the given MonoImage. The namespace and name
7028 * lookups are case insensitive.
7031 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
7033 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
7034 guint32 cols [MONO_TYPEDEF_SIZE];
7039 if (image->dynamic) {
7041 FindUserData user_data;
7043 mono_image_lock (image);
7045 if (!image->name_cache)
7046 mono_image_init_name_cache (image);
7048 user_data.key = name_space;
7049 user_data.value = NULL;
7050 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
7052 if (user_data.value) {
7053 GHashTable *nspace_table = (GHashTable*)user_data.value;
7055 user_data.key = name;
7056 user_data.value = NULL;
7058 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
7060 if (user_data.value)
7061 token = GPOINTER_TO_UINT (user_data.value);
7064 mono_image_unlock (image);
7067 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
7073 /* add a cache if needed */
7074 for (i = 1; i <= t->rows; ++i) {
7075 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
7076 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7078 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
7079 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
7081 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
7083 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
7084 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
7085 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
7086 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
7092 return_nested_in (MonoClass *class, char *nested)
7095 char *s = strchr (nested, '/');
7096 gpointer iter = NULL;
7103 while ((found = mono_class_get_nested_types (class, &iter))) {
7104 if (strcmp (found->name, nested) == 0) {
7106 return return_nested_in (found, s);
7114 search_modules (MonoImage *image, const char *name_space, const char *name)
7116 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
7117 MonoImage *file_image;
7122 * The EXPORTEDTYPES table only contains public types, so have to search the
7124 * Note: image->modules contains the contents of the MODULEREF table, while
7125 * the real module list is in the FILE table.
7127 for (i = 0; i < file_table->rows; i++) {
7128 guint32 cols [MONO_FILE_SIZE];
7129 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
7130 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
7133 file_image = mono_image_load_file_for_image (image, i + 1);
7135 class = mono_class_from_name (file_image, name_space, name);
7145 * mono_class_from_name:
7146 * @image: The MonoImage where the type is looked up in
7147 * @name_space: the type namespace
7148 * @name: the type short name.
7150 * Obtains a MonoClass with a given namespace and a given name which
7151 * is located in the given MonoImage.
7154 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
7156 GHashTable *nspace_table;
7157 MonoImage *loaded_image;
7164 if ((nested = strchr (name, '/'))) {
7165 int pos = nested - name;
7166 int len = strlen (name);
7169 memcpy (buf, name, len + 1);
7171 nested = buf + pos + 1;
7175 /* FIXME: get_class_from_name () can't handle types in the EXPORTEDTYPE table */
7176 if (get_class_from_name && image->tables [MONO_TABLE_EXPORTEDTYPE].rows == 0) {
7177 gboolean res = get_class_from_name (image, name_space, name, &class);
7180 class = search_modules (image, name_space, name);
7182 return class ? return_nested_in (class, nested) : NULL;
7188 mono_image_lock (image);
7190 if (!image->name_cache)
7191 mono_image_init_name_cache (image);
7193 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
7196 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
7198 mono_image_unlock (image);
7200 if (!token && image->dynamic && image->modules) {
7201 /* Search modules as well */
7202 for (i = 0; i < image->module_count; ++i) {
7203 MonoImage *module = image->modules [i];
7205 class = mono_class_from_name (module, name_space, name);
7212 class = search_modules (image, name_space, name);
7220 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
7221 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
7222 guint32 cols [MONO_EXP_TYPE_SIZE];
7225 idx = mono_metadata_token_index (token);
7227 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
7229 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
7230 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
7231 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
7234 class = mono_class_from_name (loaded_image, name_space, name);
7236 return return_nested_in (class, nested);
7238 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
7239 guint32 assembly_idx;
7241 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
7243 mono_assembly_load_reference (image, assembly_idx - 1);
7244 g_assert (image->references [assembly_idx - 1]);
7245 if (image->references [assembly_idx - 1] == (gpointer)-1)
7248 /* FIXME: Cycle detection */
7249 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
7251 g_error ("not yet implemented");
7255 token = MONO_TOKEN_TYPE_DEF | token;
7257 class = mono_class_get (image, token);
7259 return return_nested_in (class, nested);
7263 /*FIXME test for interfaces with variant generic arguments*/
7265 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
7266 gboolean check_interfaces)
7268 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
7269 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
7271 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
7274 for (i = 0; i < klass->interface_count; i ++) {
7275 MonoClass *ic = klass->interfaces [i];
7280 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
7285 * MS.NET thinks interfaces are a subclass of Object, so we think it as
7288 if (klassc == mono_defaults.object_class)
7295 mono_type_is_generic_argument (MonoType *type)
7297 return type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR;
7301 mono_class_has_variant_generic_params (MonoClass *klass)
7304 MonoGenericContainer *container;
7306 if (!klass->generic_class)
7309 container = klass->generic_class->container_class->generic_container;
7311 for (i = 0; i < container->type_argc; ++i)
7312 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
7319 mono_gparam_is_reference_conversible (MonoClass *target, MonoClass *candidate, gboolean check_for_reference_conv)
7321 if (target == candidate)
7324 if (check_for_reference_conv &&
7325 mono_type_is_generic_argument (&target->byval_arg) &&
7326 mono_type_is_generic_argument (&candidate->byval_arg)) {
7327 MonoGenericParam *gparam = candidate->byval_arg.data.generic_param;
7328 MonoGenericParamInfo *pinfo = mono_generic_param_info (gparam);
7330 if (!pinfo || (pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) == 0)
7333 if (!mono_class_is_assignable_from (target, candidate))
7339 * @container the generic container from the GTD
7340 * @klass: the class to be assigned to
7341 * @oklass: the source class
7343 * Both klass and oklass must be instances of the same generic interface.
7344 * Return true if @klass can be assigned to a @klass variable
7347 mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass, gboolean check_for_reference_conv)
7350 MonoType **klass_argv, **oklass_argv;
7351 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7352 MonoGenericContainer *container = klass_gtd->generic_container;
7354 if (klass == oklass)
7357 /*Viable candidates are instances of the same generic interface*/
7358 if (mono_class_get_generic_type_definition (oklass) != klass_gtd || oklass == klass_gtd)
7361 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7362 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7364 for (j = 0; j < container->type_argc; ++j) {
7365 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7366 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7368 if (param1_class->valuetype != param2_class->valuetype || (param1_class->valuetype && param1_class != param2_class))
7372 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7373 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7375 if (param1_class != param2_class) {
7376 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7377 if (!mono_gparam_is_reference_conversible (param1_class, param2_class, check_for_reference_conv))
7379 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7380 if (!mono_gparam_is_reference_conversible (param2_class, param1_class, check_for_reference_conv))
7390 mono_gparam_is_assignable_from (MonoClass *target, MonoClass *candidate)
7392 MonoGenericParam *gparam, *ogparam;
7393 MonoGenericParamInfo *tinfo, *cinfo;
7394 MonoClass **candidate_class;
7395 gboolean class_constraint_satisfied, valuetype_constraint_satisfied;
7398 if (target == candidate)
7400 if (target->byval_arg.type != candidate->byval_arg.type)
7403 gparam = target->byval_arg.data.generic_param;
7404 ogparam = candidate->byval_arg.data.generic_param;
7405 tinfo = mono_generic_param_info (gparam);
7406 cinfo = mono_generic_param_info (ogparam);
7408 class_constraint_satisfied = FALSE;
7409 valuetype_constraint_satisfied = FALSE;
7411 /*candidate must have a super set of target's special constraints*/
7412 tmask = tinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_SPECIAL_CONSTRAINTS_MASK;
7413 cmask = cinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_SPECIAL_CONSTRAINTS_MASK;
7415 if (cinfo->constraints) {
7416 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7417 MonoClass *cc = *candidate_class;
7419 if (mono_type_is_reference (&cc->byval_arg) && !MONO_CLASS_IS_INTERFACE (cc))
7420 class_constraint_satisfied = TRUE;
7421 else if (!mono_type_is_reference (&cc->byval_arg) && !MONO_CLASS_IS_INTERFACE (cc))
7422 valuetype_constraint_satisfied = TRUE;
7425 class_constraint_satisfied |= (cmask & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) != 0;
7426 valuetype_constraint_satisfied |= (cmask & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT) != 0;
7428 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_REFERENCE_TYPE_CONSTRAINT) && !class_constraint_satisfied)
7430 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT) && !valuetype_constraint_satisfied)
7432 if ((tmask & GENERIC_PARAMETER_ATTRIBUTE_CONSTRUCTOR_CONSTRAINT) && !((cmask & GENERIC_PARAMETER_ATTRIBUTE_CONSTRUCTOR_CONSTRAINT) ||
7433 valuetype_constraint_satisfied)) {
7438 /*candidate type constraints must be a superset of target's*/
7439 if (tinfo->constraints) {
7440 MonoClass **target_class;
7441 for (target_class = tinfo->constraints; *target_class; ++target_class) {
7442 MonoClass *tc = *target_class;
7445 * A constraint from @target might inflate into @candidate itself and in that case we don't need
7446 * check it's constraints since it satisfy the constraint by itself.
7448 if (mono_metadata_type_equal (&tc->byval_arg, &candidate->byval_arg))
7451 if (!cinfo->constraints)
7454 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7455 MonoClass *cc = *candidate_class;
7457 if (mono_class_is_assignable_from (tc, cc))
7461 * This happens when we have the following:
7463 * Bar<K> where K : IFace
7464 * Foo<T, U> where T : U where U : IFace
7466 * Bar<T> <- T here satisfy K constraint transitively through to U's constraint
7469 if (mono_type_is_generic_argument (&cc->byval_arg)) {
7470 if (mono_gparam_is_assignable_from (target, cc))
7474 if (!*candidate_class)
7479 /*candidate itself must have a constraint that satisfy target*/
7480 if (cinfo->constraints) {
7481 for (candidate_class = cinfo->constraints; *candidate_class; ++candidate_class) {
7482 MonoClass *cc = *candidate_class;
7483 if (mono_class_is_assignable_from (target, cc))
7491 * mono_class_is_assignable_from:
7492 * @klass: the class to be assigned to
7493 * @oklass: the source class
7495 * Return: true if an instance of object oklass can be assigned to an
7496 * instance of object @klass
7499 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
7501 /*FIXME this will cause a lot of irrelevant stuff to be loaded.*/
7503 mono_class_init (klass);
7505 if (!oklass->inited)
7506 mono_class_init (oklass);
7508 if (klass->exception_type || oklass->exception_type)
7511 if (mono_type_is_generic_argument (&klass->byval_arg)) {
7512 if (!mono_type_is_generic_argument (&oklass->byval_arg))
7514 return mono_gparam_is_assignable_from (klass, oklass);
7517 if (MONO_CLASS_IS_INTERFACE (klass)) {
7518 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR)) {
7519 MonoGenericParam *gparam = oklass->byval_arg.data.generic_param;
7520 MonoClass **constraints = mono_generic_container_get_param_info (gparam->owner, gparam->num)->constraints;
7524 for (i = 0; constraints [i]; ++i) {
7525 if (mono_class_is_assignable_from (klass, constraints [i]))
7533 /* interface_offsets might not be set for dynamic classes */
7534 if (oklass->ref_info_handle && !oklass->interface_bitmap)
7536 * oklass might be a generic type parameter but they have
7537 * interface_offsets set.
7539 return mono_reflection_call_is_assignable_to (oklass, klass);
7540 if (!oklass->interface_bitmap)
7541 /* Happens with generic instances of not-yet created dynamic types */
7543 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
7546 if (mono_class_has_variant_generic_params (klass)) {
7549 mono_class_setup_interfaces (oklass, &error);
7550 if (!mono_error_ok (&error)) {
7551 mono_error_cleanup (&error);
7555 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
7556 for (i = 0; i < oklass->interface_offsets_count; ++i) {
7557 MonoClass *iface = oklass->interfaces_packed [i];
7559 if (mono_class_is_variant_compatible (klass, iface, FALSE))
7564 } else if (klass->delegate) {
7565 if (mono_class_has_variant_generic_params (klass) && mono_class_is_variant_compatible (klass, oklass, FALSE))
7567 }else if (klass->rank) {
7568 MonoClass *eclass, *eoclass;
7570 if (oklass->rank != klass->rank)
7573 /* vectors vs. one dimensional arrays */
7574 if (oklass->byval_arg.type != klass->byval_arg.type)
7577 eclass = klass->cast_class;
7578 eoclass = oklass->cast_class;
7581 * a is b does not imply a[] is b[] when a is a valuetype, and
7582 * b is a reference type.
7585 if (eoclass->valuetype) {
7586 if ((eclass == mono_defaults.enum_class) ||
7587 (eclass == mono_defaults.enum_class->parent) ||
7588 (eclass == mono_defaults.object_class))
7592 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7593 } else if (mono_class_is_nullable (klass)) {
7594 if (mono_class_is_nullable (oklass))
7595 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7597 return mono_class_is_assignable_from (klass->cast_class, oklass);
7598 } else if (klass == mono_defaults.object_class)
7601 return mono_class_has_parent (oklass, klass);
7604 /*Check if @oklass is variant compatible with @klass.*/
7606 mono_class_is_variant_compatible_slow (MonoClass *klass, MonoClass *oklass)
7609 MonoType **klass_argv, **oklass_argv;
7610 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7611 MonoGenericContainer *container = klass_gtd->generic_container;
7613 /*Viable candidates are instances of the same generic interface*/
7614 if (mono_class_get_generic_type_definition (oklass) != klass_gtd || oklass == klass_gtd)
7617 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7618 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7620 for (j = 0; j < container->type_argc; ++j) {
7621 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7622 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7624 if (param1_class->valuetype != param2_class->valuetype)
7628 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7629 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7631 if (param1_class != param2_class) {
7632 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7633 if (!mono_class_is_assignable_from_slow (param1_class, param2_class))
7635 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7636 if (!mono_class_is_assignable_from_slow (param2_class, param1_class))
7644 /*Check if @candidate implements the interface @target*/
7646 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
7650 gboolean is_variant = mono_class_has_variant_generic_params (target);
7652 if (is_variant && MONO_CLASS_IS_INTERFACE (candidate)) {
7653 if (mono_class_is_variant_compatible_slow (target, candidate))
7658 if (candidate == target)
7661 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7662 if (candidate->image->dynamic && !candidate->wastypebuilder) {
7663 MonoReflectionTypeBuilder *tb = mono_class_get_ref_info (candidate);
7665 if (tb && tb->interfaces) {
7666 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
7667 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
7668 MonoClass *iface_class;
7670 /* we can't realize the type here since it can do pretty much anything. */
7673 iface_class = mono_class_from_mono_type (iface->type);
7674 if (iface_class == target)
7676 if (is_variant && mono_class_is_variant_compatible_slow (target, iface_class))
7678 if (mono_class_implement_interface_slow (target, iface_class))
7683 /*setup_interfaces don't mono_class_init anything*/
7684 mono_class_setup_interfaces (candidate, &error);
7685 if (!mono_error_ok (&error)) {
7686 mono_error_cleanup (&error);
7690 for (i = 0; i < candidate->interface_count; ++i) {
7691 if (candidate->interfaces [i] == target)
7694 if (is_variant && mono_class_is_variant_compatible_slow (target, candidate->interfaces [i]))
7697 if (mono_class_implement_interface_slow (target, candidate->interfaces [i]))
7701 candidate = candidate->parent;
7702 } while (candidate);
7708 * Check if @oklass can be assigned to @klass.
7709 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7712 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
7714 if (candidate == target)
7716 if (target == mono_defaults.object_class)
7719 if (mono_class_has_parent (candidate, target))
7722 /*If target is not an interface there is no need to check them.*/
7723 if (MONO_CLASS_IS_INTERFACE (target))
7724 return mono_class_implement_interface_slow (target, candidate);
7726 if (target->delegate && mono_class_has_variant_generic_params (target))
7727 return mono_class_is_variant_compatible (target, candidate, FALSE);
7729 /*FIXME properly handle nullables and arrays */
7730 /*FIXME properly handle (M)VAR */
7735 * mono_class_get_cctor:
7736 * @klass: A MonoClass pointer
7738 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7741 mono_class_get_cctor (MonoClass *klass)
7743 MonoCachedClassInfo cached_info;
7745 if (klass->image->dynamic) {
7747 * has_cctor is not set for these classes because mono_class_init () is
7750 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7753 if (!klass->has_cctor)
7756 if (mono_class_get_cached_class_info (klass, &cached_info))
7757 return mono_get_method (klass->image, cached_info.cctor_token, klass);
7759 if (klass->generic_class && !klass->methods)
7760 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
7762 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7766 * mono_class_get_finalizer:
7767 * @klass: The MonoClass pointer
7769 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7772 mono_class_get_finalizer (MonoClass *klass)
7774 MonoCachedClassInfo cached_info;
7777 mono_class_init (klass);
7778 if (!mono_class_has_finalizer (klass))
7781 if (mono_class_get_cached_class_info (klass, &cached_info))
7782 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
7784 mono_class_setup_vtable (klass);
7785 return klass->vtable [finalize_slot];
7790 * mono_class_needs_cctor_run:
7791 * @klass: the MonoClass pointer
7792 * @caller: a MonoMethod describing the caller
7794 * Determines whenever the class has a static constructor and whenever it
7795 * needs to be called when executing CALLER.
7798 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
7802 method = mono_class_get_cctor (klass);
7804 return (method == caller) ? FALSE : TRUE;
7810 * mono_class_array_element_size:
7813 * Returns: the number of bytes an element of type @klass
7814 * uses when stored into an array.
7817 mono_class_array_element_size (MonoClass *klass)
7819 MonoType *type = &klass->byval_arg;
7822 switch (type->type) {
7825 case MONO_TYPE_BOOLEAN:
7829 case MONO_TYPE_CHAR:
7838 case MONO_TYPE_CLASS:
7839 case MONO_TYPE_STRING:
7840 case MONO_TYPE_OBJECT:
7841 case MONO_TYPE_SZARRAY:
7842 case MONO_TYPE_ARRAY:
7844 case MONO_TYPE_MVAR:
7845 return sizeof (gpointer);
7850 case MONO_TYPE_VALUETYPE:
7851 if (type->data.klass->enumtype) {
7852 type = mono_class_enum_basetype (type->data.klass);
7853 klass = klass->element_class;
7856 return mono_class_instance_size (klass) - sizeof (MonoObject);
7857 case MONO_TYPE_GENERICINST:
7858 type = &type->data.generic_class->container_class->byval_arg;
7861 case MONO_TYPE_VOID:
7865 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
7871 * mono_array_element_size:
7872 * @ac: pointer to a #MonoArrayClass
7874 * Returns: the size of single array element.
7877 mono_array_element_size (MonoClass *ac)
7879 g_assert (ac->rank);
7880 return ac->sizes.element_size;
7884 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
7885 MonoGenericContext *context)
7887 if (image->dynamic) {
7888 MonoClass *tmp_handle_class;
7889 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
7891 g_assert (tmp_handle_class);
7893 *handle_class = tmp_handle_class;
7895 if (tmp_handle_class == mono_defaults.typehandle_class)
7896 return &((MonoClass*)obj)->byval_arg;
7901 switch (token & 0xff000000) {
7902 case MONO_TOKEN_TYPE_DEF:
7903 case MONO_TOKEN_TYPE_REF:
7904 case MONO_TOKEN_TYPE_SPEC: {
7907 *handle_class = mono_defaults.typehandle_class;
7908 type = mono_type_get_full (image, token, context);
7911 mono_class_init (mono_class_from_mono_type (type));
7912 /* We return a MonoType* as handle */
7915 case MONO_TOKEN_FIELD_DEF: {
7917 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
7921 *handle_class = mono_defaults.fieldhandle_class;
7922 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
7925 mono_class_init (class);
7926 return mono_class_get_field (class, token);
7928 case MONO_TOKEN_METHOD_DEF:
7929 case MONO_TOKEN_METHOD_SPEC: {
7931 meth = mono_get_method_full (image, token, NULL, context);
7933 *handle_class = mono_defaults.methodhandle_class;
7936 case MONO_TOKEN_MEMBER_REF: {
7937 guint32 cols [MONO_MEMBERREF_SIZE];
7939 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
7940 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
7941 mono_metadata_decode_blob_size (sig, &sig);
7942 if (*sig == 0x6) { /* it's a field */
7944 MonoClassField *field;
7945 field = mono_field_from_token (image, token, &klass, context);
7947 *handle_class = mono_defaults.fieldhandle_class;
7951 meth = mono_get_method_full (image, token, NULL, context);
7953 *handle_class = mono_defaults.methodhandle_class;
7958 g_warning ("Unknown token 0x%08x in ldtoken", token);
7965 * This function might need to call runtime functions so it can't be part
7966 * of the metadata library.
7968 static MonoLookupDynamicToken lookup_dynamic = NULL;
7971 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
7973 lookup_dynamic = func;
7977 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
7979 MonoClass *handle_class;
7981 return lookup_dynamic (image, token, TRUE, &handle_class, context);
7985 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
7987 return lookup_dynamic (image, token, valid_token, handle_class, context);
7990 static MonoGetCachedClassInfo get_cached_class_info = NULL;
7993 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
7995 get_cached_class_info = func;
7999 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
8001 if (!get_cached_class_info)
8004 return get_cached_class_info (klass, res);
8008 mono_install_get_class_from_name (MonoGetClassFromName func)
8010 get_class_from_name = func;
8014 mono_class_get_image (MonoClass *klass)
8016 return klass->image;
8020 * mono_class_get_element_class:
8021 * @klass: the MonoClass to act on
8023 * Returns: the element class of an array or an enumeration.
8026 mono_class_get_element_class (MonoClass *klass)
8028 return klass->element_class;
8032 * mono_class_is_valuetype:
8033 * @klass: the MonoClass to act on
8035 * Returns: true if the MonoClass represents a ValueType.
8038 mono_class_is_valuetype (MonoClass *klass)
8040 return klass->valuetype;
8044 * mono_class_is_enum:
8045 * @klass: the MonoClass to act on
8047 * Returns: true if the MonoClass represents an enumeration.
8050 mono_class_is_enum (MonoClass *klass)
8052 return klass->enumtype;
8056 * mono_class_enum_basetype:
8057 * @klass: the MonoClass to act on
8059 * Returns: the underlying type representation for an enumeration.
8062 mono_class_enum_basetype (MonoClass *klass)
8064 if (klass->element_class == klass)
8065 /* SRE or broken types */
8068 return &klass->element_class->byval_arg;
8072 * mono_class_get_parent
8073 * @klass: the MonoClass to act on
8075 * Returns: the parent class for this class.
8078 mono_class_get_parent (MonoClass *klass)
8080 return klass->parent;
8084 * mono_class_get_nesting_type;
8085 * @klass: the MonoClass to act on
8087 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
8090 mono_class_get_nesting_type (MonoClass *klass)
8092 return klass->nested_in;
8096 * mono_class_get_rank:
8097 * @klass: the MonoClass to act on
8099 * Returns: the rank for the array (the number of dimensions).
8102 mono_class_get_rank (MonoClass *klass)
8108 * mono_class_get_flags:
8109 * @klass: the MonoClass to act on
8111 * The type flags from the TypeDef table from the metadata.
8112 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
8115 * Returns: the flags from the TypeDef table.
8118 mono_class_get_flags (MonoClass *klass)
8120 return klass->flags;
8124 * mono_class_get_name
8125 * @klass: the MonoClass to act on
8127 * Returns: the name of the class.
8130 mono_class_get_name (MonoClass *klass)
8136 * mono_class_get_namespace:
8137 * @klass: the MonoClass to act on
8139 * Returns: the namespace of the class.
8142 mono_class_get_namespace (MonoClass *klass)
8144 return klass->name_space;
8148 * mono_class_get_type:
8149 * @klass: the MonoClass to act on
8151 * This method returns the internal Type representation for the class.
8153 * Returns: the MonoType from the class.
8156 mono_class_get_type (MonoClass *klass)
8158 return &klass->byval_arg;
8162 * mono_class_get_type_token
8163 * @klass: the MonoClass to act on
8165 * This method returns type token for the class.
8167 * Returns: the type token for the class.
8170 mono_class_get_type_token (MonoClass *klass)
8172 return klass->type_token;
8176 * mono_class_get_byref_type:
8177 * @klass: the MonoClass to act on
8182 mono_class_get_byref_type (MonoClass *klass)
8184 return &klass->this_arg;
8188 * mono_class_num_fields:
8189 * @klass: the MonoClass to act on
8191 * Returns: the number of static and instance fields in the class.
8194 mono_class_num_fields (MonoClass *klass)
8196 return klass->field.count;
8200 * mono_class_num_methods:
8201 * @klass: the MonoClass to act on
8203 * Returns: the number of methods in the class.
8206 mono_class_num_methods (MonoClass *klass)
8208 return klass->method.count;
8212 * mono_class_num_properties
8213 * @klass: the MonoClass to act on
8215 * Returns: the number of properties in the class.
8218 mono_class_num_properties (MonoClass *klass)
8220 mono_class_setup_properties (klass);
8222 return klass->ext->property.count;
8226 * mono_class_num_events:
8227 * @klass: the MonoClass to act on
8229 * Returns: the number of events in the class.
8232 mono_class_num_events (MonoClass *klass)
8234 mono_class_setup_events (klass);
8236 return klass->ext->event.count;
8240 * mono_class_get_fields:
8241 * @klass: the MonoClass to act on
8243 * This routine is an iterator routine for retrieving the fields in a class.
8245 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8246 * iterate over all of the elements. When no more values are
8247 * available, the return value is NULL.
8249 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
8252 mono_class_get_fields (MonoClass* klass, gpointer *iter)
8254 MonoClassField* field;
8258 mono_class_setup_fields_locking (klass);
8259 if (klass->exception_type)
8261 /* start from the first */
8262 if (klass->field.count) {
8263 return *iter = &klass->fields [0];
8271 if (field < &klass->fields [klass->field.count]) {
8272 return *iter = field;
8278 * mono_class_get_methods
8279 * @klass: the MonoClass to act on
8281 * This routine is an iterator routine for retrieving the fields in a class.
8283 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8284 * iterate over all of the elements. When no more values are
8285 * available, the return value is NULL.
8287 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
8290 mono_class_get_methods (MonoClass* klass, gpointer *iter)
8292 MonoMethod** method;
8296 mono_class_setup_methods (klass);
8299 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8300 * FIXME we should better report this error to the caller
8302 if (!klass->methods)
8304 /* start from the first */
8305 if (klass->method.count) {
8306 *iter = &klass->methods [0];
8307 return klass->methods [0];
8315 if (method < &klass->methods [klass->method.count]) {
8323 * mono_class_get_virtual_methods:
8325 * Iterate over the virtual methods of KLASS.
8327 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
8330 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
8332 MonoMethod** method;
8335 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
8337 mono_class_setup_methods (klass);
8339 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8340 * FIXME we should better report this error to the caller
8342 if (!klass->methods)
8344 /* start from the first */
8345 method = &klass->methods [0];
8350 while (method < &klass->methods [klass->method.count]) {
8351 if (*method && ((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
8355 if (method < &klass->methods [klass->method.count]) {
8362 /* Search directly in metadata to avoid calling setup_methods () */
8363 MonoMethod *res = NULL;
8369 start_index = GPOINTER_TO_UINT (*iter);
8372 for (i = start_index; i < klass->method.count; ++i) {
8375 /* class->method.first points into the methodptr table */
8376 flags = mono_metadata_decode_table_row_col (klass->image, MONO_TABLE_METHOD, klass->method.first + i, MONO_METHOD_FLAGS);
8378 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
8382 if (i < klass->method.count) {
8383 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8384 /* Add 1 here so the if (*iter) check fails */
8385 *iter = GUINT_TO_POINTER (i + 1);
8394 * mono_class_get_properties:
8395 * @klass: the MonoClass to act on
8397 * This routine is an iterator routine for retrieving the properties in a class.
8399 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8400 * iterate over all of the elements. When no more values are
8401 * available, the return value is NULL.
8403 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
8406 mono_class_get_properties (MonoClass* klass, gpointer *iter)
8408 MonoProperty* property;
8412 mono_class_setup_properties (klass);
8413 /* start from the first */
8414 if (klass->ext->property.count) {
8415 return *iter = &klass->ext->properties [0];
8423 if (property < &klass->ext->properties [klass->ext->property.count]) {
8424 return *iter = property;
8430 * mono_class_get_events:
8431 * @klass: the MonoClass to act on
8433 * This routine is an iterator routine for retrieving the properties in a class.
8435 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8436 * iterate over all of the elements. When no more values are
8437 * available, the return value is NULL.
8439 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
8442 mono_class_get_events (MonoClass* klass, gpointer *iter)
8448 mono_class_setup_events (klass);
8449 /* start from the first */
8450 if (klass->ext->event.count) {
8451 return *iter = &klass->ext->events [0];
8459 if (event < &klass->ext->events [klass->ext->event.count]) {
8460 return *iter = event;
8466 * mono_class_get_interfaces
8467 * @klass: the MonoClass to act on
8469 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
8471 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8472 * iterate over all of the elements. When no more values are
8473 * available, the return value is NULL.
8475 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8478 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
8486 mono_class_init (klass);
8487 if (!klass->interfaces_inited) {
8488 mono_class_setup_interfaces (klass, &error);
8489 if (!mono_error_ok (&error)) {
8490 mono_error_cleanup (&error);
8494 /* start from the first */
8495 if (klass->interface_count) {
8496 *iter = &klass->interfaces [0];
8497 return klass->interfaces [0];
8505 if (iface < &klass->interfaces [klass->interface_count]) {
8513 * mono_class_get_nested_types
8514 * @klass: the MonoClass to act on
8516 * This routine is an iterator routine for retrieving the nested types of a class.
8517 * This works only if @klass is non-generic, or a generic type definition.
8519 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8520 * iterate over all of the elements. When no more values are
8521 * available, the return value is NULL.
8523 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8526 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
8533 if (!klass->nested_classes_inited) {
8534 if (!klass->type_token)
8535 klass->nested_classes_inited = TRUE;
8536 mono_loader_lock ();
8537 if (!klass->nested_classes_inited) {
8538 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
8541 guint32 cols [MONO_NESTED_CLASS_SIZE];
8542 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
8543 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
8545 mono_loader_clear_error ();
8546 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8549 mono_class_alloc_ext (klass);
8550 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
8552 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8555 mono_memory_barrier ();
8556 klass->nested_classes_inited = TRUE;
8557 mono_loader_unlock ();
8561 /* start from the first */
8562 if (klass->ext && klass->ext->nested_classes) {
8563 *iter = klass->ext->nested_classes;
8564 return klass->ext->nested_classes->data;
8566 /* no nested types */
8580 * mono_field_get_name:
8581 * @field: the MonoClassField to act on
8583 * Returns: the name of the field.
8586 mono_field_get_name (MonoClassField *field)
8592 * mono_field_get_type:
8593 * @field: the MonoClassField to act on
8595 * Returns: MonoType of the field.
8598 mono_field_get_type (MonoClassField *field)
8601 MonoType *type = mono_field_get_type_checked (field, &error);
8602 if (!mono_error_ok (&error)) {
8603 mono_trace_warning (MONO_TRACE_TYPE, "Could not load field's type due to %s", mono_error_get_message (&error));
8604 mono_error_cleanup (&error);
8611 * mono_field_get_type_checked:
8612 * @field: the MonoClassField to act on
8613 * @error: used to return any erro found while retrieving @field type
8615 * Returns: MonoType of the field.
8618 mono_field_get_type_checked (MonoClassField *field, MonoError *error)
8620 mono_error_init (error);
8622 mono_field_resolve_type (field, error);
8627 * mono_field_get_parent:
8628 * @field: the MonoClassField to act on
8630 * Returns: MonoClass where the field was defined.
8633 mono_field_get_parent (MonoClassField *field)
8635 return field->parent;
8639 * mono_field_get_flags;
8640 * @field: the MonoClassField to act on
8642 * The metadata flags for a field are encoded using the
8643 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8645 * Returns: the flags for the field.
8648 mono_field_get_flags (MonoClassField *field)
8651 return mono_field_resolve_flags (field);
8652 return field->type->attrs;
8656 * mono_field_get_offset;
8657 * @field: the MonoClassField to act on
8659 * Returns: the field offset.
8662 mono_field_get_offset (MonoClassField *field)
8664 return field->offset;
8668 mono_field_get_rva (MonoClassField *field)
8672 MonoClass *klass = field->parent;
8674 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
8676 if (!klass->ext || !klass->ext->field_def_values) {
8677 mono_loader_lock ();
8678 mono_class_alloc_ext (klass);
8679 if (!klass->ext->field_def_values)
8680 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
8681 mono_loader_unlock ();
8684 field_index = mono_field_get_index (field);
8686 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
8687 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
8689 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
8690 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
8693 return klass->ext->field_def_values [field_index].data;
8697 * mono_field_get_data;
8698 * @field: the MonoClassField to act on
8700 * Returns: pointer to the metadata constant value or to the field
8701 * data if it has an RVA flag.
8704 mono_field_get_data (MonoClassField *field)
8706 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
8707 MonoTypeEnum def_type;
8709 return mono_class_get_field_default_value (field, &def_type);
8710 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
8711 return mono_field_get_rva (field);
8718 * mono_property_get_name:
8719 * @prop: the MonoProperty to act on
8721 * Returns: the name of the property
8724 mono_property_get_name (MonoProperty *prop)
8730 * mono_property_get_set_method
8731 * @prop: the MonoProperty to act on.
8733 * Returns: the setter method of the property (A MonoMethod)
8736 mono_property_get_set_method (MonoProperty *prop)
8742 * mono_property_get_get_method
8743 * @prop: the MonoProperty to act on.
8745 * Returns: the setter method of the property (A MonoMethod)
8748 mono_property_get_get_method (MonoProperty *prop)
8754 * mono_property_get_parent:
8755 * @prop: the MonoProperty to act on.
8757 * Returns: the MonoClass where the property was defined.
8760 mono_property_get_parent (MonoProperty *prop)
8762 return prop->parent;
8766 * mono_property_get_flags:
8767 * @prop: the MonoProperty to act on.
8769 * The metadata flags for a property are encoded using the
8770 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8772 * Returns: the flags for the property.
8775 mono_property_get_flags (MonoProperty *prop)
8781 * mono_event_get_name:
8782 * @event: the MonoEvent to act on
8784 * Returns: the name of the event.
8787 mono_event_get_name (MonoEvent *event)
8793 * mono_event_get_add_method:
8794 * @event: The MonoEvent to act on.
8796 * Returns: the @add' method for the event (a MonoMethod).
8799 mono_event_get_add_method (MonoEvent *event)
8805 * mono_event_get_remove_method:
8806 * @event: The MonoEvent to act on.
8808 * Returns: the @remove method for the event (a MonoMethod).
8811 mono_event_get_remove_method (MonoEvent *event)
8813 return event->remove;
8817 * mono_event_get_raise_method:
8818 * @event: The MonoEvent to act on.
8820 * Returns: the @raise method for the event (a MonoMethod).
8823 mono_event_get_raise_method (MonoEvent *event)
8825 return event->raise;
8829 * mono_event_get_parent:
8830 * @event: the MonoEvent to act on.
8832 * Returns: the MonoClass where the event is defined.
8835 mono_event_get_parent (MonoEvent *event)
8837 return event->parent;
8841 * mono_event_get_flags
8842 * @event: the MonoEvent to act on.
8844 * The metadata flags for an event are encoded using the
8845 * EVENT_* constants. See the tabledefs.h file for details.
8847 * Returns: the flags for the event.
8850 mono_event_get_flags (MonoEvent *event)
8852 return event->attrs;
8856 * mono_class_get_method_from_name:
8857 * @klass: where to look for the method
8858 * @name_space: name of the method
8859 * @param_count: number of parameters. -1 for any number.
8861 * Obtains a MonoMethod with a given name and number of parameters.
8862 * It only works if there are no multiple signatures for any given method name.
8865 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
8867 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
8871 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
8873 MonoMethod *res = NULL;
8876 /* Search directly in the metadata to avoid calling setup_methods () */
8877 for (i = 0; i < klass->method.count; ++i) {
8878 guint32 cols [MONO_METHOD_SIZE];
8880 MonoMethodSignature *sig;
8882 /* class->method.first points into the methodptr table */
8883 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
8885 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
8886 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8887 if (param_count == -1) {
8891 sig = mono_method_signature (method);
8892 if (sig && sig->param_count == param_count) {
8903 * mono_class_get_method_from_name_flags:
8904 * @klass: where to look for the method
8905 * @name_space: name of the method
8906 * @param_count: number of parameters. -1 for any number.
8907 * @flags: flags which must be set in the method
8909 * Obtains a MonoMethod with a given name and number of parameters.
8910 * It only works if there are no multiple signatures for any given method name.
8913 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
8915 MonoMethod *res = NULL;
8918 mono_class_init (klass);
8920 if (klass->generic_class && !klass->methods) {
8921 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
8923 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
8927 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
8928 mono_class_setup_methods (klass);
8930 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8931 See mono/tests/array_load_exception.il
8932 FIXME we should better report this error to the caller
8934 if (!klass->methods)
8936 for (i = 0; i < klass->method.count; ++i) {
8937 MonoMethod *method = klass->methods [i];
8939 if (method->name[0] == name [0] &&
8940 !strcmp (name, method->name) &&
8941 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
8942 ((method->flags & flags) == flags)) {
8949 res = find_method_in_metadata (klass, name, param_count, flags);
8956 * mono_class_set_failure:
8957 * @klass: class in which the failure was detected
8958 * @ex_type: the kind of exception/error to be thrown (later)
8959 * @ex_data: exception data (specific to each type of exception/error)
8961 * Keep a detected failure informations in the class for later processing.
8962 * Note that only the first failure is kept.
8964 * LOCKING: Acquires the loader lock.
8967 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
8969 if (klass->exception_type)
8972 mono_loader_lock ();
8973 klass->exception_type = ex_type;
8975 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
8976 mono_loader_unlock ();
8982 * mono_class_get_exception_data:
8984 * Return the exception_data property of KLASS.
8986 * LOCKING: Acquires the loader lock.
8989 mono_class_get_exception_data (MonoClass *klass)
8991 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
8995 * mono_classes_init:
8997 * Initialize the resources used by this module.
9000 mono_classes_init (void)
9002 mono_counters_register ("Inflated methods size",
9003 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
9004 mono_counters_register ("Inflated classes",
9005 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
9006 mono_counters_register ("Inflated classes size",
9007 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
9008 mono_counters_register ("MonoClass size",
9009 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
9010 mono_counters_register ("MonoClassExt size",
9011 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
9015 * mono_classes_cleanup:
9017 * Free the resources used by this module.
9020 mono_classes_cleanup (void)
9022 if (global_interface_bitset)
9023 mono_bitset_free (global_interface_bitset);
9027 * mono_class_get_exception_for_failure:
9028 * @klass: class in which the failure was detected
9030 * Return a constructed MonoException than the caller can then throw
9031 * using mono_raise_exception - or NULL if no failure is present (or
9032 * doesn't result in an exception).
9035 mono_class_get_exception_for_failure (MonoClass *klass)
9037 gpointer exception_data = mono_class_get_exception_data (klass);
9039 switch (klass->exception_type) {
9040 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
9041 MonoDomain *domain = mono_domain_get ();
9042 MonoSecurityManager* secman = mono_security_manager_get_methods ();
9043 MonoMethod *method = exception_data;
9044 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
9045 MonoObject *exc = NULL;
9049 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
9050 args [2] = mono_type_get_object (domain, &klass->byval_arg);
9051 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
9053 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
9054 return (MonoException*) exc;
9056 case MONO_EXCEPTION_TYPE_LOAD: {
9059 char *str = mono_type_get_full_name (klass);
9060 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
9061 name = mono_string_new (mono_domain_get (), str);
9063 ex = mono_get_exception_type_load (name, astr);
9067 case MONO_EXCEPTION_MISSING_METHOD: {
9068 char *class_name = exception_data;
9069 char *assembly_name = class_name + strlen (class_name) + 1;
9071 return mono_get_exception_missing_method (class_name, assembly_name);
9073 case MONO_EXCEPTION_MISSING_FIELD: {
9074 char *class_name = exception_data;
9075 char *member_name = class_name + strlen (class_name) + 1;
9077 return mono_get_exception_missing_field (class_name, member_name);
9079 case MONO_EXCEPTION_FILE_NOT_FOUND: {
9080 char *msg_format = exception_data;
9081 char *assembly_name = msg_format + strlen (msg_format) + 1;
9082 char *msg = g_strdup_printf (msg_format, assembly_name);
9085 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
9091 case MONO_EXCEPTION_BAD_IMAGE: {
9092 return mono_get_exception_bad_image_format (exception_data);
9095 MonoLoaderError *error;
9098 error = mono_loader_get_last_error ();
9100 ex = mono_loader_error_prepare_exception (error);
9104 /* TODO - handle other class related failures */
9111 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
9113 outer_klass = mono_class_get_generic_type_definition (outer_klass);
9114 inner_klass = mono_class_get_generic_type_definition (inner_klass);
9116 if (outer_klass == inner_klass)
9118 inner_klass = inner_klass->nested_in;
9119 } while (inner_klass);
9124 mono_class_get_generic_type_definition (MonoClass *klass)
9126 return klass->generic_class ? klass->generic_class->container_class : klass;
9130 * Check if @klass is a subtype of @parent ignoring generic instantiations.
9132 * Generic instantiations are ignored for all super types of @klass.
9134 * Visibility checks ignoring generic instantiations.
9137 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
9140 klass = mono_class_get_generic_type_definition (klass);
9141 parent = mono_class_get_generic_type_definition (parent);
9142 mono_class_setup_supertypes (klass);
9144 for (i = 0; i < klass->idepth; ++i) {
9145 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
9151 * Subtype can only access parent members with family protection if the site object
9152 * is subclass of Subtype. For example:
9153 * class A { protected int x; }
9155 * void valid_access () {
9159 * void invalid_access () {
9166 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
9168 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
9171 if (context_klass == NULL)
9173 /*if access_klass is not member_klass context_klass must be type compat*/
9174 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
9180 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
9183 if (accessing == accessed)
9185 if (!accessed || !accessing)
9188 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
9189 * anywhere so untrusted friends are not safe to access platform's code internals */
9190 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
9191 if (!mono_security_core_clr_can_access_internals (accessing->image, accessed->image))
9195 mono_assembly_load_friends (accessed);
9196 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
9197 MonoAssemblyName *friend = tmp->data;
9198 /* Be conservative with checks */
9201 if (strcmp (accessing->aname.name, friend->name))
9203 if (friend->public_key_token [0]) {
9204 if (!accessing->aname.public_key_token [0])
9206 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
9215 * If klass is a generic type or if it is derived from a generic type, return the
9216 * MonoClass of the generic definition
9217 * Returns NULL if not found
9220 get_generic_definition_class (MonoClass *klass)
9223 if (klass->generic_class && klass->generic_class->container_class)
9224 return klass->generic_class->container_class;
9225 klass = klass->parent;
9231 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
9234 for (i = 0; i < ginst->type_argc; ++i) {
9235 MonoType *type = ginst->type_argv[i];
9236 switch (type->type) {
9237 case MONO_TYPE_SZARRAY:
9238 if (!can_access_type (access_klass, type->data.klass))
9241 case MONO_TYPE_ARRAY:
9242 if (!can_access_type (access_klass, type->data.array->eklass))
9246 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
9249 case MONO_TYPE_CLASS:
9250 case MONO_TYPE_VALUETYPE:
9251 case MONO_TYPE_GENERICINST:
9252 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
9260 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
9264 if (access_klass->image->assembly && access_klass->image->assembly->corlib_internal)
9267 if (access_klass->element_class && !access_klass->enumtype)
9268 access_klass = access_klass->element_class;
9270 if (member_klass->element_class && !member_klass->enumtype)
9271 member_klass = member_klass->element_class;
9273 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
9275 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
9278 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
9281 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
9284 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
9287 /*Non nested type with nested visibility. We just fail it.*/
9288 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
9291 switch (access_level) {
9292 case TYPE_ATTRIBUTE_NOT_PUBLIC:
9293 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9295 case TYPE_ATTRIBUTE_PUBLIC:
9298 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
9301 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
9302 return is_nesting_type (member_klass, access_klass);
9304 case TYPE_ATTRIBUTE_NESTED_FAMILY:
9305 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9307 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
9308 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9310 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
9311 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
9312 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9314 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
9315 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
9316 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9321 /* FIXME: check visibility of type, too */
9323 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
9325 MonoClass *member_generic_def;
9326 if (access_klass->image->assembly && access_klass->image->assembly->corlib_internal)
9329 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
9330 access_klass->generic_container) &&
9331 (member_generic_def = get_generic_definition_class (member_klass))) {
9332 MonoClass *access_container;
9334 if (access_klass->generic_container)
9335 access_container = access_klass;
9337 access_container = access_klass->generic_class->container_class;
9339 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
9343 /* Partition I 8.5.3.2 */
9344 /* the access level values are the same for fields and methods */
9345 switch (access_level) {
9346 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
9347 /* same compilation unit */
9348 return access_klass->image == member_klass->image;
9349 case FIELD_ATTRIBUTE_PRIVATE:
9350 return access_klass == member_klass;
9351 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
9352 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
9353 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
9356 case FIELD_ATTRIBUTE_ASSEMBLY:
9357 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9358 case FIELD_ATTRIBUTE_FAMILY:
9359 if (is_valid_family_access (access_klass, member_klass, context_klass))
9362 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
9363 if (is_valid_family_access (access_klass, member_klass, context_klass))
9365 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9366 case FIELD_ATTRIBUTE_PUBLIC:
9373 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
9375 /* FIXME: check all overlapping fields */
9376 int can = can_access_member (method->klass, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9378 MonoClass *nested = method->klass->nested_in;
9380 can = can_access_member (nested, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9383 nested = nested->nested_in;
9390 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
9392 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9394 MonoClass *nested = method->klass->nested_in;
9396 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9399 nested = nested->nested_in;
9404 * with generics calls to explicit interface implementations can be expressed
9405 * directly: the method is private, but we must allow it. This may be opening
9406 * a hole or the generics code should handle this differently.
9407 * Maybe just ensure the interface type is public.
9409 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
9415 * mono_method_can_access_method_full:
9416 * @method: The caller method
9417 * @called: The called method
9418 * @context_klass: The static type on stack of the owner @called object used
9420 * This function must be used with instance calls, as they have more strict family accessibility.
9421 * It can be used with static methods, but context_klass should be NULL.
9423 * Returns: TRUE if caller have proper visibility and acessibility to @called
9426 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
9428 MonoClass *access_class = method->klass;
9429 MonoClass *member_class = called->klass;
9430 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9432 MonoClass *nested = access_class->nested_in;
9434 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9437 nested = nested->nested_in;
9444 can = can_access_type (access_class, member_class);
9446 MonoClass *nested = access_class->nested_in;
9448 can = can_access_type (nested, member_class);
9451 nested = nested->nested_in;
9458 if (called->is_inflated) {
9459 MonoMethodInflated * infl = (MonoMethodInflated*)called;
9460 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
9469 * mono_method_can_access_field_full:
9470 * @method: The caller method
9471 * @field: The accessed field
9472 * @context_klass: The static type on stack of the owner @field object used
9474 * This function must be used with instance fields, as they have more strict family accessibility.
9475 * It can be used with static fields, but context_klass should be NULL.
9477 * Returns: TRUE if caller have proper visibility and acessibility to @field
9480 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
9482 MonoClass *access_class = method->klass;
9483 MonoClass *member_class = field->parent;
9484 /* FIXME: check all overlapping fields */
9485 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9487 MonoClass *nested = access_class->nested_in;
9489 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9492 nested = nested->nested_in;
9499 can = can_access_type (access_class, member_class);
9501 MonoClass *nested = access_class->nested_in;
9503 can = can_access_type (nested, member_class);
9506 nested = nested->nested_in;
9516 * mono_type_is_valid_enum_basetype:
9517 * @type: The MonoType to check
9519 * Returns: TRUE if the type can be used as the basetype of an enum
9521 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
9522 switch (type->type) {
9525 case MONO_TYPE_BOOLEAN:
9528 case MONO_TYPE_CHAR:
9541 * mono_class_is_valid_enum:
9542 * @klass: An enum class to be validated
9544 * This method verify the required properties an enum should have.
9546 * Returns: TRUE if the informed enum class is valid
9548 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
9549 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
9550 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
9552 gboolean mono_class_is_valid_enum (MonoClass *klass) {
9553 MonoClassField * field;
9554 gpointer iter = NULL;
9555 gboolean found_base_field = FALSE;
9557 g_assert (klass->enumtype);
9558 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
9559 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
9563 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
9566 while ((field = mono_class_get_fields (klass, &iter))) {
9567 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
9568 if (found_base_field)
9570 found_base_field = TRUE;
9571 if (!mono_type_is_valid_enum_basetype (field->type))
9576 if (!found_base_field)
9579 if (klass->method.count > 0)
9586 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
9588 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
9592 * mono_class_setup_interface_id:
9594 * Initializes MonoClass::interface_id if required.
9596 * LOCKING: Acquires the loader lock.
9599 mono_class_setup_interface_id (MonoClass *class)
9601 mono_loader_lock ();
9602 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
9603 class->interface_id = mono_get_unique_iid (class);
9604 mono_loader_unlock ();
9608 * mono_class_alloc_ext:
9610 * Allocate klass->ext if not already done.
9611 * LOCKING: Assumes the loader lock is held.
9614 mono_class_alloc_ext (MonoClass *klass)
9617 klass->ext = mono_class_alloc0 (klass, sizeof (MonoClassExt));
9618 class_ext_size += sizeof (MonoClassExt);
9623 * mono_class_setup_interfaces:
9625 * Initialize class->interfaces/interfaces_count.
9626 * LOCKING: Acquires the loader lock.
9627 * This function can fail the type.
9630 mono_class_setup_interfaces (MonoClass *klass, MonoError *error)
9634 mono_error_init (error);
9636 if (klass->interfaces_inited)
9639 mono_loader_lock ();
9641 if (klass->interfaces_inited) {
9642 mono_loader_unlock ();
9646 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
9649 /* generic IList, ICollection, IEnumerable */
9650 klass->interface_count = 1;
9651 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
9653 args [0] = &klass->element_class->byval_arg;
9654 klass->interfaces [0] = mono_class_bind_generic_parameters (
9655 mono_defaults.generic_ilist_class, 1, args, FALSE);
9656 } else if (klass->generic_class) {
9657 MonoClass *gklass = klass->generic_class->container_class;
9659 klass->interface_count = gklass->interface_count;
9660 klass->interfaces = mono_class_new0 (klass, MonoClass *, klass->interface_count);
9661 for (i = 0; i < klass->interface_count; i++) {
9662 klass->interfaces [i] = mono_class_inflate_generic_class_checked (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class), error);
9663 if (!mono_error_ok (error)) {
9664 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not setup the interfaces"));
9665 klass->interfaces = NULL;
9671 mono_memory_barrier ();
9673 klass->interfaces_inited = TRUE;
9675 mono_loader_unlock ();
9679 mono_field_resolve_type (MonoClassField *field, MonoError *error)
9681 MonoClass *class = field->parent;
9682 MonoImage *image = class->image;
9683 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9684 int field_idx = field - class->fields;
9686 mono_error_init (error);
9689 MonoClassField *gfield = >d->fields [field_idx];
9690 MonoType *gtype = mono_field_get_type_checked (gfield, error);
9691 if (!mono_error_ok (error)) {
9692 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9693 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9697 field->type = mono_class_inflate_generic_type_no_copy (image, gtype, mono_class_get_context (class), error);
9698 if (!mono_error_ok (error)) {
9699 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9700 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9705 guint32 cols [MONO_FIELD_SIZE];
9706 MonoGenericContainer *container = NULL;
9707 int idx = class->field.first + field_idx;
9709 /*FIXME, in theory we do not lazy load SRE fields*/
9710 g_assert (!image->dynamic);
9712 if (class->generic_container) {
9713 container = class->generic_container;
9715 container = gtd->generic_container;
9716 g_assert (container);
9719 /* class->field.first and idx points into the fieldptr table */
9720 mono_metadata_decode_table_row (image, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
9722 if (!mono_verifier_verify_field_signature (image, cols [MONO_FIELD_SIGNATURE], NULL)) {
9723 mono_error_set_type_load_class (error, class, "Could not verify field %s signature", field->name);
9724 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9728 sig = mono_metadata_blob_heap (image, cols [MONO_FIELD_SIGNATURE]);
9730 mono_metadata_decode_value (sig, &sig);
9731 /* FIELD signature == 0x06 */
9732 g_assert (*sig == 0x06);
9733 field->type = mono_metadata_parse_type_full (image, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
9735 mono_error_set_type_load_class (error, class, "Could not load field %s type", field->name);
9736 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9737 mono_loader_clear_error ();
9743 mono_field_resolve_flags (MonoClassField *field)
9745 MonoClass *class = field->parent;
9746 MonoImage *image = class->image;
9747 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9748 int field_idx = field - class->fields;
9752 MonoClassField *gfield = >d->fields [field_idx];
9753 return mono_field_get_flags (gfield);
9755 int idx = class->field.first + field_idx;
9757 /*FIXME, in theory we do not lazy load SRE fields*/
9758 g_assert (!image->dynamic);
9760 return mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_FLAGS);
9765 * mono_class_setup_basic_field_info:
9766 * @class: The class to initialize
9768 * Initializes the class->fields array of fields.
9769 * Aquires the loader lock.
9772 mono_class_setup_basic_field_info_locking (MonoClass *class)
9774 mono_loader_lock ();
9775 mono_class_setup_basic_field_info (class);
9776 mono_loader_unlock ();
9780 * mono_class_get_fields_lazy:
9781 * @klass: the MonoClass to act on
9783 * This routine is an iterator routine for retrieving the fields in a class.
9784 * Only minimal information about fields are loaded. Accessors must be used
9785 * for all MonoClassField returned.
9787 * You must pass a gpointer that points to zero and is treated as an opaque handle to
9788 * iterate over all of the elements. When no more values are
9789 * available, the return value is NULL.
9791 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
9794 mono_class_get_fields_lazy (MonoClass* klass, gpointer *iter)
9796 MonoClassField* field;
9800 mono_class_setup_basic_field_info_locking (klass);
9803 /* start from the first */
9804 if (klass->field.count) {
9805 return *iter = &klass->fields [0];
9813 if (field < &klass->fields [klass->field.count]) {
9814 return *iter = field;