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)
19 #include <mono/io-layer/atomic.h>
21 #include <mono/metadata/image.h>
22 #include <mono/metadata/assembly.h>
23 #include <mono/metadata/metadata.h>
24 #include <mono/metadata/metadata-internals.h>
25 #include <mono/metadata/profiler-private.h>
26 #include <mono/metadata/tabledefs.h>
27 #include <mono/metadata/tokentype.h>
28 #include <mono/metadata/class-internals.h>
29 #include <mono/metadata/object.h>
30 #include <mono/metadata/appdomain.h>
31 #include <mono/metadata/mono-endian.h>
32 #include <mono/metadata/debug-helpers.h>
33 #include <mono/metadata/reflection.h>
34 #include <mono/metadata/exception.h>
35 #include <mono/metadata/security-manager.h>
36 #include <mono/metadata/security-core-clr.h>
37 #include <mono/metadata/attrdefs.h>
38 #include <mono/metadata/gc-internal.h>
39 #include <mono/metadata/verify-internals.h>
40 #include <mono/metadata/mono-debug.h>
41 #include <mono/utils/mono-counters.h>
42 #include <mono/utils/mono-string.h>
43 #include <mono/utils/mono-error-internals.h>
44 #include <mono/utils/mono-logger-internal.h>
47 gboolean mono_print_vtable = FALSE;
50 guint32 inflated_classes, inflated_classes_size, inflated_methods_size;
51 guint32 classes_size, class_ext_size;
53 /* Function supplied by the runtime to find classes by name using information from the AOT file */
54 static MonoGetClassFromName get_class_from_name = NULL;
56 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
57 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
58 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
59 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
60 static int generic_array_methods (MonoClass *class);
61 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
63 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
64 static char* mono_assembly_name_from_token (MonoImage *image, guint32 type_token);
65 static gboolean mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass);
66 static void mono_field_resolve_type (MonoClassField *field, MonoError *error);
67 static guint32 mono_field_resolve_flags (MonoClassField *field);
70 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
71 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
74 * mono_class_from_typeref:
76 * @type_token: a TypeRef token
78 * Creates the MonoClass* structure representing the type defined by
79 * the typeref token valid inside @image.
80 * Returns: the MonoClass* representing the typeref token, NULL ifcould
84 mono_class_from_typeref (MonoImage *image, guint32 type_token)
86 guint32 cols [MONO_TYPEREF_SIZE];
87 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
89 const char *name, *nspace;
93 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
95 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
96 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
98 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
99 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
100 case MONO_RESOLTION_SCOPE_MODULE:
102 g_error ("null ResolutionScope not yet handled");
103 /* a typedef in disguise */
104 return mono_class_from_name (image, nspace, name);
105 case MONO_RESOLTION_SCOPE_MODULEREF:
106 module = mono_image_load_module (image, idx);
108 return mono_class_from_name (module, nspace, name);
110 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
113 human_name = mono_stringify_assembly_name (&image->assembly->aname);
114 mono_loader_set_error_type_load (msg, human_name);
120 case MONO_RESOLTION_SCOPE_TYPEREF: {
121 MonoClass *enclosing;
124 if (idx == mono_metadata_token_index (type_token)) {
125 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with self-referencing typeref token %08x.", image->name, type_token));
129 enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
133 if (enclosing->nested_classes_inited && enclosing->ext) {
134 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
135 for (tmp = enclosing->ext->nested_classes; tmp; tmp = tmp->next) {
137 if (strcmp (res->name, name) == 0)
141 /* Don't call mono_class_init as we might've been called by it recursively */
142 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
144 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
145 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
146 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
148 if (strcmp (nname, name) == 0)
149 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
151 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
154 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
157 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
161 if (idx > image->tables [MONO_TABLE_ASSEMBLYREF].rows) {
162 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with invalid assemblyref token %08x.", image->name, idx));
166 if (!image->references || !image->references [idx - 1])
167 mono_assembly_load_reference (image, idx - 1);
168 g_assert (image->references [idx - 1]);
170 /* If the assembly did not load, register this as a type load exception */
171 if (image->references [idx - 1] == REFERENCE_MISSING){
172 MonoAssemblyName aname;
175 mono_assembly_get_assemblyref (image, idx - 1, &aname);
176 human_name = mono_stringify_assembly_name (&aname);
177 mono_loader_set_error_assembly_load (human_name, image->assembly ? image->assembly->ref_only : FALSE);
183 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
188 mono_image_memdup (MonoImage *image, void *data, guint size)
190 void *res = mono_image_alloc (image, size);
191 memcpy (res, data, size);
195 /* Copy everything mono_metadata_free_array free. */
197 mono_dup_array_type (MonoImage *image, MonoArrayType *a)
200 a = mono_image_memdup (image, a, sizeof (MonoArrayType));
202 a->sizes = mono_image_memdup (image, a->sizes, a->numsizes * sizeof (int));
204 a->lobounds = mono_image_memdup (image, a->lobounds, a->numlobounds * sizeof (int));
206 a = g_memdup (a, sizeof (MonoArrayType));
208 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
210 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
215 /* Copy everything mono_metadata_free_method_signature free. */
217 mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig)
221 sig = mono_metadata_signature_dup_full (image, sig);
223 sig->ret = mono_metadata_type_dup (image, sig->ret);
224 for (i = 0; i < sig->param_count; ++i)
225 sig->params [i] = mono_metadata_type_dup (image, sig->params [i]);
231 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
233 MonoAssembly *ta = klass->image->assembly;
235 g_string_append_printf (
236 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
238 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
239 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
240 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
241 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
245 mono_type_name_check_byref (MonoType *type, GString *str)
248 g_string_append_c (str, '&');
252 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
253 MonoTypeNameFormat format)
257 switch (type->type) {
258 case MONO_TYPE_ARRAY: {
259 int i, rank = type->data.array->rank;
260 MonoTypeNameFormat nested_format;
262 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
263 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
265 mono_type_get_name_recurse (
266 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
267 g_string_append_c (str, '[');
269 g_string_append_c (str, '*');
270 for (i = 1; i < rank; i++)
271 g_string_append_c (str, ',');
272 g_string_append_c (str, ']');
274 mono_type_name_check_byref (type, str);
276 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
277 _mono_type_get_assembly_name (type->data.array->eklass, str);
280 case MONO_TYPE_SZARRAY: {
281 MonoTypeNameFormat nested_format;
283 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
284 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
286 mono_type_get_name_recurse (
287 &type->data.klass->byval_arg, str, FALSE, nested_format);
288 g_string_append (str, "[]");
290 mono_type_name_check_byref (type, str);
292 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
293 _mono_type_get_assembly_name (type->data.klass, str);
296 case MONO_TYPE_PTR: {
297 MonoTypeNameFormat nested_format;
299 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
300 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
302 mono_type_get_name_recurse (
303 type->data.type, str, FALSE, nested_format);
304 g_string_append_c (str, '*');
306 mono_type_name_check_byref (type, str);
308 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
309 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
314 if (!mono_generic_param_info (type->data.generic_param))
315 g_string_append_printf (str, "%s%d", type->type == MONO_TYPE_VAR ? "!" : "!!", type->data.generic_param->num);
317 g_string_append (str, mono_generic_param_info (type->data.generic_param)->name);
319 mono_type_name_check_byref (type, str);
323 klass = mono_class_from_mono_type (type);
324 if (klass->nested_in) {
325 mono_type_get_name_recurse (
326 &klass->nested_in->byval_arg, str, TRUE, format);
327 if (format == MONO_TYPE_NAME_FORMAT_IL)
328 g_string_append_c (str, '.');
330 g_string_append_c (str, '+');
331 } else if (*klass->name_space) {
332 g_string_append (str, klass->name_space);
333 g_string_append_c (str, '.');
335 if (format == MONO_TYPE_NAME_FORMAT_IL) {
336 char *s = strchr (klass->name, '`');
337 int len = s ? s - klass->name : strlen (klass->name);
339 g_string_append_len (str, klass->name, len);
341 g_string_append (str, klass->name);
344 if (klass->generic_class) {
345 MonoGenericClass *gclass = klass->generic_class;
346 MonoGenericInst *inst = gclass->context.class_inst;
347 MonoTypeNameFormat nested_format;
350 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
351 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
353 if (format == MONO_TYPE_NAME_FORMAT_IL)
354 g_string_append_c (str, '<');
356 g_string_append_c (str, '[');
357 for (i = 0; i < inst->type_argc; i++) {
358 MonoType *t = inst->type_argv [i];
361 g_string_append_c (str, ',');
362 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
363 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
364 g_string_append_c (str, '[');
365 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
366 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
367 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
368 g_string_append_c (str, ']');
370 if (format == MONO_TYPE_NAME_FORMAT_IL)
371 g_string_append_c (str, '>');
373 g_string_append_c (str, ']');
374 } else if (klass->generic_container &&
375 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
376 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
379 if (format == MONO_TYPE_NAME_FORMAT_IL)
380 g_string_append_c (str, '<');
382 g_string_append_c (str, '[');
383 for (i = 0; i < klass->generic_container->type_argc; i++) {
385 g_string_append_c (str, ',');
386 g_string_append (str, mono_generic_container_get_param_info (klass->generic_container, i)->name);
388 if (format == MONO_TYPE_NAME_FORMAT_IL)
389 g_string_append_c (str, '>');
391 g_string_append_c (str, ']');
394 mono_type_name_check_byref (type, str);
396 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
397 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
398 _mono_type_get_assembly_name (klass, str);
404 * mono_type_get_name_full:
406 * @format: the format for the return string.
409 * Returns: the string representation in a number of formats:
411 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
412 * returned in the formatrequired by System.Reflection, this is the
413 * inverse of mono_reflection_parse_type ().
415 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
416 * be used by the IL assembler.
418 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
420 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
423 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
427 result = g_string_new ("");
429 mono_type_get_name_recurse (type, result, FALSE, format);
431 return g_string_free (result, FALSE);
435 * mono_type_get_full_name:
438 * Returns: the string representation for type as required by System.Reflection.
439 * The inverse of mono_reflection_parse_type ().
442 mono_type_get_full_name (MonoClass *class)
444 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
448 * mono_type_get_name:
451 * Returns: the string representation for type as it would be represented in IL code.
454 mono_type_get_name (MonoType *type)
456 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
460 * mono_type_get_underlying_type:
463 * Returns: the MonoType for the underlying integer type if @type
464 * is an enum and byref is false, otherwise the type itself.
467 mono_type_get_underlying_type (MonoType *type)
469 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
470 return mono_class_enum_basetype (type->data.klass);
471 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
472 return mono_class_enum_basetype (type->data.generic_class->container_class);
477 * mono_class_is_open_constructed_type:
480 * Returns TRUE if type represents a generics open constructed type
481 * (not all the type parameters required for the instantiation have
485 mono_class_is_open_constructed_type (MonoType *t)
491 case MONO_TYPE_SZARRAY:
492 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
493 case MONO_TYPE_ARRAY:
494 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
496 return mono_class_is_open_constructed_type (t->data.type);
497 case MONO_TYPE_GENERICINST:
498 return t->data.generic_class->context.class_inst->is_open;
505 inflate_generic_type (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
507 mono_error_init (error);
509 switch (type->type) {
510 case MONO_TYPE_MVAR: {
512 int num = mono_type_get_generic_param_num (type);
513 MonoGenericInst *inst = context->method_inst;
514 if (!inst || !inst->type_argv)
516 if (num >= inst->type_argc) {
517 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
518 mono_error_set_bad_image (error, image, "MVAR %d (%s) cannot be expanded in this context with %d instantiations",
519 num, info ? info->name : "", inst->type_argc);
524 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
525 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
526 * ->byref and ->attrs from @type are propagated to the returned type.
528 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
529 nt->byref = type->byref;
530 nt->attrs = type->attrs;
533 case MONO_TYPE_VAR: {
535 int num = mono_type_get_generic_param_num (type);
536 MonoGenericInst *inst = context->class_inst;
539 if (num >= inst->type_argc) {
540 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
541 mono_error_set_bad_image (error, image, "VAR %d (%s) cannot be expanded in this context with %d instantiations",
542 num, info ? info->name : "", inst->type_argc);
545 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
546 nt->byref = type->byref;
547 nt->attrs = type->attrs;
550 case MONO_TYPE_SZARRAY: {
551 MonoClass *eclass = type->data.klass;
552 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
553 if (!inflated || !mono_error_ok (error))
555 nt = mono_metadata_type_dup (image, type);
556 nt->data.klass = mono_class_from_mono_type (inflated);
557 mono_metadata_free_type (inflated);
560 case MONO_TYPE_ARRAY: {
561 MonoClass *eclass = type->data.array->eklass;
562 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
563 if (!inflated || !mono_error_ok (error))
565 nt = mono_metadata_type_dup (image, type);
566 nt->data.array->eklass = mono_class_from_mono_type (inflated);
567 mono_metadata_free_type (inflated);
570 case MONO_TYPE_GENERICINST: {
571 MonoGenericClass *gclass = type->data.generic_class;
572 MonoGenericInst *inst;
574 if (!gclass->context.class_inst->is_open)
577 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context, error);
578 if (!mono_error_ok (error))
580 if (inst != gclass->context.class_inst)
581 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
583 if (gclass == type->data.generic_class)
586 nt = mono_metadata_type_dup (image, type);
587 nt->data.generic_class = gclass;
590 case MONO_TYPE_CLASS:
591 case MONO_TYPE_VALUETYPE: {
592 MonoClass *klass = type->data.klass;
593 MonoGenericContainer *container = klass->generic_container;
594 MonoGenericInst *inst;
595 MonoGenericClass *gclass = NULL;
601 /* We can't use context->class_inst directly, since it can have more elements */
602 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context, error);
603 if (!mono_error_ok (error))
605 if (inst == container->context.class_inst)
608 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
610 nt = mono_metadata_type_dup (image, type);
611 nt->type = MONO_TYPE_GENERICINST;
612 nt->data.generic_class = gclass;
622 mono_generic_class_get_context (MonoGenericClass *gclass)
624 return &gclass->context;
628 mono_class_get_context (MonoClass *class)
630 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
634 * mono_class_get_generic_container:
636 * Return the generic container of KLASS which should be a generic type definition.
638 MonoGenericContainer*
639 mono_class_get_generic_container (MonoClass *klass)
641 g_assert (klass->is_generic);
643 return klass->generic_container;
647 * mono_class_get_generic_class:
649 * Return the MonoGenericClass of KLASS, which should be a generic instance.
652 mono_class_get_generic_class (MonoClass *klass)
654 g_assert (klass->is_inflated);
656 return klass->generic_class;
660 * mono_class_inflate_generic_type_with_mempool:
661 * @mempool: a mempool
663 * @context: a generics context
664 * @error: error context
666 * The same as mono_class_inflate_generic_type, but allocates the MonoType
667 * from mempool if it is non-NULL. If it is NULL, the MonoType is
668 * allocated on the heap and is owned by the caller.
669 * The returned type can potentially be the same as TYPE, so it should not be
670 * modified by the caller, and it should be freed using mono_metadata_free_type ().
673 mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
675 MonoType *inflated = NULL;
676 mono_error_init (error);
679 inflated = inflate_generic_type (image, type, context, error);
680 if (!mono_error_ok (error))
684 MonoType *shared = mono_metadata_get_shared_type (type);
689 return mono_metadata_type_dup (image, type);
693 mono_stats.inflated_type_count++;
698 * mono_class_inflate_generic_type:
700 * @context: a generics context
702 * If @type is a generic type and @context is not NULL, instantiate it using the
703 * generics context @context.
705 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
706 * on the heap and is owned by the caller. Returns NULL on error.
708 * @deprecated Please use mono_class_inflate_generic_type_checked instead
711 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
715 result = mono_class_inflate_generic_type_checked (type, context, &error);
717 if (!mono_error_ok (&error)) {
718 mono_error_cleanup (&error);
725 * mono_class_inflate_generic_type:
727 * @context: a generics context
728 * @error: error context to use
730 * If @type is a generic type and @context is not NULL, instantiate it using the
731 * generics context @context.
733 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
734 * on the heap and is owned by the caller.
737 mono_class_inflate_generic_type_checked (MonoType *type, MonoGenericContext *context, MonoError *error)
739 return mono_class_inflate_generic_type_with_mempool (NULL, type, context, error);
743 * mono_class_inflate_generic_type_no_copy:
745 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
749 mono_class_inflate_generic_type_no_copy (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
751 MonoType *inflated = NULL;
753 mono_error_init (error);
755 inflated = inflate_generic_type (image, type, context, error);
756 if (!mono_error_ok (error))
763 mono_stats.inflated_type_count++;
768 mono_class_inflate_generic_class_checked (MonoClass *gklass, MonoGenericContext *context, MonoError *error)
773 inflated = mono_class_inflate_generic_type_checked (&gklass->byval_arg, context, error);
774 if (!mono_error_ok (error))
777 res = mono_class_from_mono_type (inflated);
778 mono_metadata_free_type (inflated);
783 * mono_class_inflate_generic_class:
785 * Inflate the class GKLASS with CONTEXT.
788 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
793 res = mono_class_inflate_generic_class_checked (gklass, context, &error);
794 g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
801 static MonoGenericContext
802 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with, MonoError *error)
804 MonoGenericInst *class_inst = NULL;
805 MonoGenericInst *method_inst = NULL;
806 MonoGenericContext res = { NULL, NULL };
808 mono_error_init (error);
810 if (context->class_inst) {
811 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with, error);
812 if (!mono_error_ok (error))
816 if (context->method_inst) {
817 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with, error);
818 if (!mono_error_ok (error))
822 res.class_inst = class_inst;
823 res.method_inst = method_inst;
829 * mono_class_inflate_generic_method:
830 * @method: a generic method
831 * @context: a generics context
833 * Instantiate the generic method @method using the generics context @context.
835 * Returns: the new instantiated method
838 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
840 return mono_class_inflate_generic_method_full (method, NULL, context);
844 * mono_class_inflate_generic_method_full:
846 * Instantiate method @method with the generic context @context.
847 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
848 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
851 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
854 MonoMethod *res = mono_class_inflate_generic_method_full_checked (method, klass_hint, context, &error);
855 if (!mono_error_ok (&error))
856 /*FIXME do proper error handling - on this case, kill this function. */
857 g_error ("Could not inflate generic method due to %s", mono_error_get_message (&error));
863 * mono_class_inflate_generic_method_full_checked:
864 * Same as mono_class_inflate_generic_method_full but return failure using @error.
867 mono_class_inflate_generic_method_full_checked (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context, MonoError *error)
870 MonoMethodInflated *iresult, *cached;
871 MonoMethodSignature *sig;
872 MonoGenericContext tmp_context;
873 gboolean is_mb_open = FALSE;
875 mono_error_init (error);
877 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
878 while (method->is_inflated) {
879 MonoGenericContext *method_context = mono_method_get_context (method);
880 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
882 tmp_context = inflate_generic_context (method_context, context, error);
883 if (!mono_error_ok (error))
885 context = &tmp_context;
887 if (mono_metadata_generic_context_equal (method_context, context))
890 method = imethod->declaring;
893 if (!method->is_generic && !method->klass->generic_container)
897 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
898 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
899 * This is opposite to the way non-SRE MethodInfos behave.
901 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
903 * void Example<T> () {
907 * In Example, the method token must be encoded as: "void Example<!!0>()"
909 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
910 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
912 * On the other hand, inflating a non-SRE generic method with its own arguments should
913 * return itself. For example:
915 * MethodInfo m = ... //m is a generic method definition
916 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
919 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
920 * what happens with regular methods.
922 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
923 * everything should behave like a regular type or method.
926 is_mb_open = method->is_generic &&
927 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
928 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
930 iresult = g_new0 (MonoMethodInflated, 1);
931 iresult->context = *context;
932 iresult->declaring = method;
933 iresult->method.method.is_mb_open = is_mb_open;
935 if (!context->method_inst && method->is_generic)
936 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
938 if (!context->class_inst) {
939 g_assert (!iresult->declaring->klass->generic_class);
940 if (iresult->declaring->klass->generic_container)
941 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
942 else if (iresult->declaring->klass->generic_class)
943 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
947 cached = mono_method_inflated_lookup (iresult, FALSE);
949 mono_loader_unlock ();
951 return (MonoMethod*)cached;
954 mono_stats.inflated_method_count++;
956 inflated_methods_size += sizeof (MonoMethodInflated);
958 sig = mono_method_signature (method);
960 char *name = mono_type_get_full_name (method->klass);
961 mono_error_set_bad_image (error, method->klass->image, "Could not resolve signature of method %s:%s", name, method->name);
967 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
969 memcpy (&iresult->method.method, method, sizeof (MonoMethod));
972 result = (MonoMethod *) iresult;
973 result->is_inflated = TRUE;
974 result->is_generic = FALSE;
975 result->sre_method = FALSE;
976 result->signature = NULL;
977 result->is_mb_open = is_mb_open;
979 if (!context->method_inst) {
980 /* Set the generic_container of the result to the generic_container of method */
981 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
983 if (generic_container) {
984 result->is_generic = 1;
985 mono_method_set_generic_container (result, generic_container);
989 if (!klass_hint || !klass_hint->generic_class ||
990 klass_hint->generic_class->container_class != method->klass ||
991 klass_hint->generic_class->context.class_inst != context->class_inst)
994 if (method->klass->generic_container)
995 result->klass = klass_hint;
997 if (!result->klass) {
998 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context, error);
999 if (!mono_error_ok (error))
1002 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
1004 mono_metadata_free_type (inflated);
1008 * FIXME: This should hold, but it doesn't:
1010 * if (result->is_inflated && mono_method_get_context (result)->method_inst &&
1011 * mono_method_get_context (result)->method_inst == mono_method_get_generic_container (((MonoMethodInflated*)result)->declaring)->context.method_inst) {
1012 * g_assert (result->is_generic);
1015 * Fixing this here causes other things to break, hence a very
1016 * ugly hack in mini-trampolines.c - see
1017 * is_generic_method_definition().
1020 mono_method_inflated_lookup (iresult, TRUE);
1021 mono_loader_unlock ();
1025 mono_loader_unlock ();
1031 * mono_get_inflated_method:
1033 * Obsolete. We keep it around since it's mentioned in the public API.
1036 mono_get_inflated_method (MonoMethod *method)
1042 * mono_method_get_context_general:
1044 * @uninflated: handle uninflated methods?
1046 * Returns the generic context of a method or NULL if it doesn't have
1047 * one. For an inflated method that's the context stored in the
1048 * method. Otherwise it's in the method's generic container or in the
1049 * generic container of the method's class.
1052 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
1054 if (method->is_inflated) {
1055 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1056 return &imethod->context;
1060 if (method->is_generic)
1061 return &(mono_method_get_generic_container (method)->context);
1062 if (method->klass->generic_container)
1063 return &method->klass->generic_container->context;
1068 * mono_method_get_context:
1071 * Returns the generic context for method if it's inflated, otherwise
1075 mono_method_get_context (MonoMethod *method)
1077 return mono_method_get_context_general (method, FALSE);
1081 * mono_method_get_generic_container:
1083 * Returns the generic container of METHOD, which should be a generic method definition.
1084 * Returns NULL if METHOD is not a generic method definition.
1085 * LOCKING: Acquires the loader lock.
1087 MonoGenericContainer*
1088 mono_method_get_generic_container (MonoMethod *method)
1090 MonoGenericContainer *container;
1092 if (!method->is_generic)
1095 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
1096 g_assert (container);
1102 * mono_method_set_generic_container:
1104 * Sets the generic container of METHOD to CONTAINER.
1105 * LOCKING: Acquires the loader lock.
1108 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
1110 g_assert (method->is_generic);
1112 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
1116 * mono_class_find_enum_basetype:
1117 * @class: The enum class
1119 * Determine the basetype of an enum by iterating through its fields. We do this
1120 * in a separate function since it is cheaper than calling mono_class_setup_fields.
1123 mono_class_find_enum_basetype (MonoClass *class)
1125 MonoGenericContainer *container = NULL;
1126 MonoImage *m = class->image;
1127 const int top = class->field.count;
1130 g_assert (class->enumtype);
1132 if (class->generic_container)
1133 container = class->generic_container;
1134 else if (class->generic_class) {
1135 MonoClass *gklass = class->generic_class->container_class;
1137 container = gklass->generic_container;
1138 g_assert (container);
1142 * Fetch all the field information.
1144 for (i = 0; i < top; i++){
1146 guint32 cols [MONO_FIELD_SIZE];
1147 int idx = class->field.first + i;
1150 /* class->field.first and idx points into the fieldptr table */
1151 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1153 if (cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC) //no need to decode static fields
1156 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL))
1159 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1160 mono_metadata_decode_value (sig, &sig);
1161 /* FIELD signature == 0x06 */
1165 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1168 if (class->generic_class) {
1169 //FIXME do we leak here?
1170 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1171 ftype->attrs = cols [MONO_FIELD_FLAGS];
1181 * Checks for MonoClass::exception_type without resolving all MonoType's into MonoClass'es
1184 mono_type_has_exceptions (MonoType *type)
1186 switch (type->type) {
1187 case MONO_TYPE_CLASS:
1188 case MONO_TYPE_VALUETYPE:
1189 case MONO_TYPE_SZARRAY:
1190 return type->data.klass->exception_type;
1191 case MONO_TYPE_ARRAY:
1192 return type->data.array->eklass->exception_type;
1193 case MONO_TYPE_GENERICINST:
1194 return mono_generic_class_get_class (type->data.generic_class)->exception_type;
1202 * Allocate memory for some data belonging to CLASS, either from its image's mempool,
1206 mono_class_alloc (MonoClass *class, int size)
1208 if (class->generic_class)
1210 * This should be freed in free_generic_class () in metadata.c.
1211 * FIXME: It would be better to allocate this from the image set mempool, by
1212 * adding an image_set field to MonoGenericClass.
1214 return g_malloc (size);
1216 return mono_image_alloc (class->image, size);
1220 mono_class_alloc0 (MonoClass *class, int size)
1224 res = mono_class_alloc (class, size);
1225 memset (res, 0, size);
1229 #define mono_class_new0(class,struct_type, n_structs) \
1230 ((struct_type *) mono_class_alloc0 ((class), ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
1233 * mono_class_setup_basic_field_info:
1234 * @class: The class to initialize
1236 * Initializes the class->fields.
1237 * LOCKING: Assumes the loader lock is held.
1240 mono_class_setup_basic_field_info (MonoClass *class)
1242 MonoClassField *field;
1250 gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1251 image = class->image;
1252 top = class->field.count;
1254 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1256 * This happens when a generic instance of an unfinished generic typebuilder
1257 * is used as an element type for creating an array type. We can't initialize
1258 * the fields of this class using the fields of gklass, since gklass is not
1259 * finished yet, fields could be added to it later.
1265 mono_class_setup_basic_field_info (gtd);
1267 top = gtd->field.count;
1268 class->field.first = gtd->field.first;
1269 class->field.count = gtd->field.count;
1272 class->fields = mono_class_alloc0 (class, sizeof (MonoClassField) * top);
1275 * Fetch all the field information.
1277 for (i = 0; i < top; i++){
1278 field = &class->fields [i];
1279 field->parent = class;
1282 field->name = mono_field_get_name (>d->fields [i]);
1284 int idx = class->field.first + i;
1285 /* class->field.first and idx points into the fieldptr table */
1286 guint32 name_idx = mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_NAME);
1287 /* The name is needed for fieldrefs */
1288 field->name = mono_metadata_string_heap (image, name_idx);
1294 * mono_class_setup_fields:
1295 * @class: The class to initialize
1297 * Initializes the class->fields.
1298 * LOCKING: Assumes the loader lock is held.
1301 mono_class_setup_fields (MonoClass *class)
1304 MonoImage *m = class->image;
1306 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1307 int i, blittable = TRUE;
1308 guint32 real_size = 0;
1309 guint32 packing_size = 0;
1310 gboolean explicit_size;
1311 MonoClassField *field;
1312 MonoGenericContainer *container = NULL;
1313 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1315 if (class->size_inited)
1318 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1320 * This happens when a generic instance of an unfinished generic typebuilder
1321 * is used as an element type for creating an array type. We can't initialize
1322 * the fields of this class using the fields of gklass, since gklass is not
1323 * finished yet, fields could be added to it later.
1328 mono_class_setup_basic_field_info (class);
1329 top = class->field.count;
1332 mono_class_setup_fields (gtd);
1333 if (gtd->exception_type) {
1334 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1339 class->instance_size = 0;
1341 class->sizes.class_size = 0;
1343 if (class->parent) {
1344 /* For generic instances, class->parent might not have been initialized */
1345 mono_class_init (class->parent);
1346 if (!class->parent->size_inited) {
1347 mono_class_setup_fields (class->parent);
1348 if (class->parent->exception_type) {
1349 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1353 class->instance_size += class->parent->instance_size;
1354 class->min_align = class->parent->min_align;
1355 /* we use |= since it may have been set already */
1356 class->has_references |= class->parent->has_references;
1357 blittable = class->parent->blittable;
1359 class->instance_size = sizeof (MonoObject);
1360 class->min_align = 1;
1363 /* We can't really enable 16 bytes alignment until the GC supports it.
1364 The whole layout/instance size code must be reviewed because we do alignment calculation in terms of the
1365 boxed instance, which leads to unexplainable holes at the beginning of an object embedding a simd type.
1366 Bug #506144 is an example of this issue.
1368 if (class->simd_type)
1369 class->min_align = 16;
1371 /* Get the real size */
1372 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1374 if (explicit_size) {
1375 g_assert ((packing_size & 0xfffffff0) == 0);
1376 class->packing_size = packing_size;
1377 real_size += class->instance_size;
1381 if (explicit_size && real_size) {
1382 class->instance_size = MAX (real_size, class->instance_size);
1384 class->size_inited = 1;
1385 class->blittable = blittable;
1389 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1392 /* Prevent infinite loops if the class references itself */
1393 class->size_inited = 1;
1395 if (class->generic_container) {
1396 container = class->generic_container;
1398 container = gtd->generic_container;
1399 g_assert (container);
1403 * Fetch all the field information.
1405 for (i = 0; i < top; i++){
1406 int idx = class->field.first + i;
1407 field = &class->fields [i];
1409 field->parent = class;
1412 mono_field_resolve_type (field, &error);
1413 if (!mono_error_ok (&error)) {
1414 /*mono_field_resolve_type already failed class*/
1415 mono_error_cleanup (&error);
1419 g_error ("could not resolve %s:%s\n", mono_type_get_full_name(class), field->name);
1420 g_assert (field->type);
1423 if (mono_field_is_deleted (field))
1426 MonoClassField *gfield = >d->fields [i];
1427 field->offset = gfield->offset;
1429 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1431 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1432 field->offset = offset;
1434 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1435 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Missing field layout info for %s", field->name));
1438 if (field->offset < -1) { /*-1 is used to encode special static fields */
1439 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Invalid negative field offset %d for %s", field->offset, field->name));
1445 /* Only do these checks if we still think this type is blittable */
1446 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1447 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1450 MonoClass *field_class = mono_class_from_mono_type (field->type);
1452 mono_class_setup_fields (field_class);
1453 if (field_class->exception_type) {
1454 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1458 if (!field_class || !field_class->blittable)
1463 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1464 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1465 blittable = class->element_class->blittable;
1468 if (mono_type_has_exceptions (field->type)) {
1469 char *class_name = mono_type_get_full_name (class);
1470 char *type_name = mono_type_full_name (field->type);
1472 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1473 g_warning ("Invalid type %s for instance field %s:%s", type_name, class_name, field->name);
1474 g_free (class_name);
1478 /* The def_value of fields is compute lazily during vtable creation */
1481 if (class == mono_defaults.string_class)
1484 class->blittable = blittable;
1486 if (class->enumtype && !mono_class_enum_basetype (class)) {
1487 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1490 if (explicit_size && real_size) {
1491 class->instance_size = MAX (real_size, class->instance_size);
1494 if (class->exception_type)
1496 mono_class_layout_fields (class);
1498 /*valuetypes can't be neither bigger than 1Mb or empty. */
1499 if (class->valuetype && (class->instance_size <= 0 || class->instance_size > (0x100000 + sizeof (MonoObject))))
1500 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1504 * mono_class_setup_fields_locking:
1505 * @class: The class to initialize
1507 * Initializes the class->fields array of fields.
1508 * Aquires the loader lock.
1511 mono_class_setup_fields_locking (MonoClass *class)
1513 mono_loader_lock ();
1514 mono_class_setup_fields (class);
1515 mono_loader_unlock ();
1519 * mono_class_has_references:
1521 * Returns whenever @klass->has_references is set, initializing it if needed.
1522 * Aquires the loader lock.
1525 mono_class_has_references (MonoClass *klass)
1527 if (klass->init_pending) {
1528 /* Be conservative */
1531 mono_class_init (klass);
1533 return klass->has_references;
1537 /* useful until we keep track of gc-references in corlib etc. */
1539 #define IS_GC_REFERENCE(t) FALSE
1541 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1545 * mono_type_get_basic_type_from_generic:
1548 * Returns a closed type corresponding to the possibly open type
1552 mono_type_get_basic_type_from_generic (MonoType *type)
1554 /* When we do generic sharing we let type variables stand for reference types. */
1555 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1556 return &mono_defaults.object_class->byval_arg;
1561 * mono_class_layout_fields:
1564 * Compute the placement of fields inside an object or struct, according to
1565 * the layout rules and set the following fields in @class:
1566 * - has_references (if the class contains instance references firled or structs that contain references)
1567 * - has_static_refs (same, but for static fields)
1568 * - instance_size (size of the object in memory)
1569 * - class_size (size needed for the static fields)
1570 * - size_inited (flag set when the instance_size is set)
1572 * LOCKING: this is supposed to be called with the loader lock held.
1575 mono_class_layout_fields (MonoClass *class)
1578 const int top = class->field.count;
1579 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1580 guint32 pass, passes, real_size;
1581 gboolean gc_aware_layout = FALSE;
1582 MonoClassField *field;
1585 * When we do generic sharing we need to have layout
1586 * information for open generic classes (either with a generic
1587 * context containing type variables or with a generic
1588 * container), so we don't return in that case anymore.
1592 * Enable GC aware auto layout: in this mode, reference
1593 * fields are grouped together inside objects, increasing collector
1595 * Requires that all classes whose layout is known to native code be annotated
1596 * with [StructLayout (LayoutKind.Sequential)]
1597 * Value types have gc_aware_layout disabled by default, as per
1598 * what the default is for other runtimes.
1600 /* corlib is missing [StructLayout] directives in many places */
1601 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1602 if (class->image != mono_defaults.corlib &&
1603 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1604 gc_aware_layout = TRUE;
1605 /* from System.dll, used in metadata/process.h */
1606 if (strcmp (class->name, "ProcessStartInfo") == 0)
1607 gc_aware_layout = FALSE;
1610 /* Compute klass->has_references */
1612 * Process non-static fields first, since static fields might recursively
1613 * refer to the class itself.
1615 for (i = 0; i < top; i++) {
1618 field = &class->fields [i];
1620 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1621 ftype = mono_type_get_underlying_type (field->type);
1622 ftype = mono_type_get_basic_type_from_generic (ftype);
1623 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1624 class->has_references = TRUE;
1628 for (i = 0; i < top; i++) {
1631 field = &class->fields [i];
1633 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1634 ftype = mono_type_get_underlying_type (field->type);
1635 ftype = mono_type_get_basic_type_from_generic (ftype);
1636 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1637 class->has_static_refs = TRUE;
1641 for (i = 0; i < top; i++) {
1644 field = &class->fields [i];
1646 ftype = mono_type_get_underlying_type (field->type);
1647 ftype = mono_type_get_basic_type_from_generic (ftype);
1648 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1649 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1650 class->has_static_refs = TRUE;
1652 class->has_references = TRUE;
1657 * Compute field layout and total size (not considering static fields)
1661 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1662 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1664 if (gc_aware_layout)
1669 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1673 real_size = class->parent->instance_size;
1675 real_size = sizeof (MonoObject);
1677 for (pass = 0; pass < passes; ++pass) {
1678 for (i = 0; i < top; i++){
1683 field = &class->fields [i];
1685 if (mono_field_is_deleted (field))
1687 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1690 ftype = mono_type_get_underlying_type (field->type);
1691 ftype = mono_type_get_basic_type_from_generic (ftype);
1692 if (gc_aware_layout) {
1693 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1702 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1703 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1704 /* This field is a hack inserted by MCS to empty structures */
1708 size = mono_type_size (field->type, &align);
1710 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1711 align = class->packing_size ? MIN (class->packing_size, align): align;
1712 /* if the field has managed references, we need to force-align it
1715 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1716 align = MAX (align, sizeof (gpointer));
1718 class->min_align = MAX (align, class->min_align);
1719 field->offset = real_size;
1721 field->offset += align - 1;
1722 field->offset &= ~(align - 1);
1724 /*TypeBuilders produce all sort of weird things*/
1725 g_assert (class->image->dynamic || field->offset > 0);
1726 real_size = field->offset + size;
1729 class->instance_size = MAX (real_size, class->instance_size);
1731 if (class->instance_size & (class->min_align - 1)) {
1732 class->instance_size += class->min_align - 1;
1733 class->instance_size &= ~(class->min_align - 1);
1737 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1739 for (i = 0; i < top; i++) {
1744 field = &class->fields [i];
1747 * There must be info about all the fields in a type if it
1748 * uses explicit layout.
1751 if (mono_field_is_deleted (field))
1753 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1756 size = mono_type_size (field->type, &align);
1757 class->min_align = MAX (align, class->min_align);
1760 * When we get here, field->offset is already set by the
1761 * loader (for either runtime fields or fields loaded from metadata).
1762 * The offset is from the start of the object: this works for both
1763 * classes and valuetypes.
1765 field->offset += sizeof (MonoObject);
1766 ftype = mono_type_get_underlying_type (field->type);
1767 ftype = mono_type_get_basic_type_from_generic (ftype);
1768 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1769 if (field->offset % sizeof (gpointer)) {
1770 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1777 real_size = MAX (real_size, size + field->offset);
1779 class->instance_size = MAX (real_size, class->instance_size);
1783 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1785 * For small structs, set min_align to at least the struct size to improve
1786 * performance, and since the JIT memset/memcpy code assumes this and generates
1787 * unaligned accesses otherwise. See #78990 for a testcase.
1789 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1790 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1793 class->size_inited = 1;
1796 * Compute static field layout and size
1798 for (i = 0; i < top; i++){
1802 field = &class->fields [i];
1804 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1806 if (mono_field_is_deleted (field))
1809 if (mono_type_has_exceptions (field->type)) {
1810 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1814 size = mono_type_size (field->type, &align);
1815 field->offset = class->sizes.class_size;
1816 /*align is always non-zero here*/
1817 field->offset += align - 1;
1818 field->offset &= ~(align - 1);
1819 class->sizes.class_size = field->offset + size;
1824 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1828 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1829 method->klass = class;
1830 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1831 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1832 method->signature = sig;
1833 method->name = name;
1836 if (name [0] == '.') {
1837 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1839 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1845 * mono_class_setup_methods:
1848 * Initializes the 'methods' array in the klass.
1849 * Calling this method should be avoided if possible since it allocates a lot
1850 * of long-living MonoMethod structures.
1851 * Methods belonging to an interface are assigned a sequential slot starting
1854 * On failure this function sets class->exception_type
1857 mono_class_setup_methods (MonoClass *class)
1860 MonoMethod **methods;
1865 mono_loader_lock ();
1867 if (class->methods) {
1868 mono_loader_unlock ();
1872 if (class->generic_class) {
1874 MonoClass *gklass = class->generic_class->container_class;
1876 mono_class_init (gklass);
1877 if (!gklass->exception_type)
1878 mono_class_setup_methods (gklass);
1879 if (gklass->exception_type) {
1880 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1881 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
1882 mono_loader_unlock ();
1886 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1887 class->method.count = gklass->method.count;
1888 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * (class->method.count + 1));
1890 for (i = 0; i < class->method.count; i++) {
1891 methods [i] = mono_class_inflate_generic_method_full_checked (
1892 gklass->methods [i], class, mono_class_get_context (class), &error);
1893 if (!mono_error_ok (&error)) {
1894 char *method = mono_method_full_name (gklass->methods [i], TRUE);
1895 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)));
1898 mono_error_cleanup (&error);
1899 mono_loader_unlock ();
1903 } else if (class->rank) {
1905 MonoMethod *amethod;
1906 MonoMethodSignature *sig;
1907 int count_generic = 0, first_generic = 0;
1910 class->method.count = 3 + (class->rank > 1? 2: 1);
1912 mono_class_setup_interfaces (class, &error);
1913 g_assert (mono_error_ok (&error)); /*FIXME can this fail for array types?*/
1915 if (class->interface_count) {
1916 count_generic = generic_array_methods (class);
1917 first_generic = class->method.count;
1918 class->method.count += class->interface_count * count_generic;
1921 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * class->method.count);
1923 sig = mono_metadata_signature_alloc (class->image, class->rank);
1924 sig->ret = &mono_defaults.void_class->byval_arg;
1925 sig->pinvoke = TRUE;
1926 sig->hasthis = TRUE;
1927 for (i = 0; i < class->rank; ++i)
1928 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1930 amethod = create_array_method (class, ".ctor", sig);
1931 methods [method_num++] = amethod;
1932 if (class->rank > 1) {
1933 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1934 sig->ret = &mono_defaults.void_class->byval_arg;
1935 sig->pinvoke = TRUE;
1936 sig->hasthis = TRUE;
1937 for (i = 0; i < class->rank * 2; ++i)
1938 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1940 amethod = create_array_method (class, ".ctor", sig);
1941 methods [method_num++] = amethod;
1943 /* element Get (idx11, [idx2, ...]) */
1944 sig = mono_metadata_signature_alloc (class->image, class->rank);
1945 sig->ret = &class->element_class->byval_arg;
1946 sig->pinvoke = TRUE;
1947 sig->hasthis = TRUE;
1948 for (i = 0; i < class->rank; ++i)
1949 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1950 amethod = create_array_method (class, "Get", sig);
1951 methods [method_num++] = amethod;
1952 /* element& Address (idx11, [idx2, ...]) */
1953 sig = mono_metadata_signature_alloc (class->image, class->rank);
1954 sig->ret = &class->element_class->this_arg;
1955 sig->pinvoke = TRUE;
1956 sig->hasthis = TRUE;
1957 for (i = 0; i < class->rank; ++i)
1958 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1959 amethod = create_array_method (class, "Address", sig);
1960 methods [method_num++] = amethod;
1961 /* void Set (idx11, [idx2, ...], element) */
1962 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1963 sig->ret = &mono_defaults.void_class->byval_arg;
1964 sig->pinvoke = TRUE;
1965 sig->hasthis = TRUE;
1966 for (i = 0; i < class->rank; ++i)
1967 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1968 sig->params [i] = &class->element_class->byval_arg;
1969 amethod = create_array_method (class, "Set", sig);
1970 methods [method_num++] = amethod;
1972 for (i = 0; i < class->interface_count; i++)
1973 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1975 methods = mono_class_alloc (class, sizeof (MonoMethod*) * class->method.count);
1976 for (i = 0; i < class->method.count; ++i) {
1977 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1978 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1982 if (MONO_CLASS_IS_INTERFACE (class)) {
1984 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
1985 for (i = 0; i < class->method.count; ++i) {
1986 if (methods [i]->flags & METHOD_ATTRIBUTE_VIRTUAL)
1987 methods [i]->slot = slot++;
1991 /* Needed because of the double-checking locking pattern */
1992 mono_memory_barrier ();
1994 class->methods = methods;
1996 if (mono_debugger_class_loaded_methods_func)
1997 mono_debugger_class_loaded_methods_func (class);
1999 mono_loader_unlock ();
2003 * mono_class_get_method_by_index:
2005 * Returns class->methods [index], initializing class->methods if neccesary.
2007 * LOCKING: Acquires the loader lock.
2010 mono_class_get_method_by_index (MonoClass *class, int index)
2012 /* Avoid calling setup_methods () if possible */
2013 if (class->generic_class && !class->methods) {
2014 MonoClass *gklass = class->generic_class->container_class;
2017 m = mono_class_inflate_generic_method_full (
2018 gklass->methods [index], class, mono_class_get_context (class));
2020 * If setup_methods () is called later for this class, no duplicates are created,
2021 * since inflate_generic_method guarantees that only one instance of a method
2022 * is created for each context.
2025 mono_class_setup_methods (class);
2026 g_assert (m == class->methods [index]);
2030 mono_class_setup_methods (class);
2031 if (class->exception_type) /*FIXME do proper error handling*/
2033 g_assert (index >= 0 && index < class->method.count);
2034 return class->methods [index];
2039 * mono_class_get_inflated_method:
2041 * Given an inflated class CLASS and a method METHOD which should be a method of
2042 * CLASS's generic definition, return the inflated method corresponding to METHOD.
2045 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
2047 MonoClass *gklass = class->generic_class->container_class;
2050 g_assert (method->klass == gklass);
2052 mono_class_setup_methods (gklass);
2053 g_assert (!gklass->exception_type); /*FIXME do proper error handling*/
2055 for (i = 0; i < gklass->method.count; ++i) {
2056 if (gklass->methods [i] == method) {
2058 return class->methods [i];
2060 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
2068 * mono_class_get_vtable_entry:
2070 * Returns class->vtable [offset], computing it if neccesary. Returns NULL on failure.
2071 * LOCKING: Acquires the loader lock.
2074 mono_class_get_vtable_entry (MonoClass *class, int offset)
2078 if (class->rank == 1) {
2080 * szarrays do not overwrite any methods of Array, so we can avoid
2081 * initializing their vtables in some cases.
2083 mono_class_setup_vtable (class->parent);
2084 if (offset < class->parent->vtable_size)
2085 return class->parent->vtable [offset];
2088 if (class->generic_class) {
2089 MonoClass *gklass = class->generic_class->container_class;
2090 mono_class_setup_vtable (gklass);
2091 m = gklass->vtable [offset];
2093 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
2095 mono_class_setup_vtable (class);
2096 if (class->exception_type)
2098 m = class->vtable [offset];
2105 * mono_class_get_vtable_size:
2107 * Return the vtable size for KLASS.
2110 mono_class_get_vtable_size (MonoClass *klass)
2112 mono_class_setup_vtable (klass);
2114 return klass->vtable_size;
2117 /*This method can fail the class.*/
2119 mono_class_setup_properties (MonoClass *class)
2121 guint startm, endm, i, j;
2122 guint32 cols [MONO_PROPERTY_SIZE];
2123 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2124 MonoProperty *properties;
2127 if (class->ext && class->ext->properties)
2130 mono_loader_lock ();
2132 if (class->ext && class->ext->properties) {
2133 mono_loader_unlock ();
2137 mono_class_alloc_ext (class);
2139 if (class->generic_class) {
2140 MonoClass *gklass = class->generic_class->container_class;
2142 mono_class_init (gklass);
2143 mono_class_setup_properties (gklass);
2144 if (gklass->exception_type) {
2145 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2146 mono_loader_unlock ();
2150 class->ext->property = gklass->ext->property;
2152 properties = mono_class_new0 (class, MonoProperty, class->ext->property.count + 1);
2154 for (i = 0; i < class->ext->property.count; i++) {
2155 MonoProperty *prop = &properties [i];
2157 *prop = gklass->ext->properties [i];
2160 prop->get = mono_class_inflate_generic_method_full (
2161 prop->get, class, mono_class_get_context (class));
2163 prop->set = mono_class_inflate_generic_method_full (
2164 prop->set, class, mono_class_get_context (class));
2166 prop->parent = class;
2169 int first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2170 int count = last - first;
2173 mono_class_setup_methods (class);
2174 if (class->exception_type) {
2175 mono_loader_unlock ();
2180 class->ext->property.first = first;
2181 class->ext->property.count = count;
2182 properties = mono_class_alloc0 (class, sizeof (MonoProperty) * count);
2183 for (i = first; i < last; ++i) {
2184 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
2185 properties [i - first].parent = class;
2186 properties [i - first].attrs = cols [MONO_PROPERTY_FLAGS];
2187 properties [i - first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
2189 startm = mono_metadata_methods_from_property (class->image, i, &endm);
2190 for (j = startm; j < endm; ++j) {
2193 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2195 if (class->image->uncompressed_metadata)
2196 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2197 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2199 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2201 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2202 case METHOD_SEMANTIC_SETTER:
2203 properties [i - first].set = method;
2205 case METHOD_SEMANTIC_GETTER:
2206 properties [i - first].get = method;
2214 /*Flush any pending writes as we do double checked locking on class->properties */
2215 mono_memory_barrier ();
2217 /* Leave this assignment as the last op in the function */
2218 class->ext->properties = properties;
2220 mono_loader_unlock ();
2224 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
2226 MonoMethod **om, **retval;
2229 for (om = methods, count = 0; *om; ++om, ++count)
2232 retval = g_new0 (MonoMethod*, count + 1);
2234 for (om = methods, count = 0; *om; ++om, ++count)
2235 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
2240 /*This method can fail the class.*/
2242 mono_class_setup_events (MonoClass *class)
2245 guint startm, endm, i, j;
2246 guint32 cols [MONO_EVENT_SIZE];
2247 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2251 if (class->ext && class->ext->events)
2254 mono_loader_lock ();
2256 if (class->ext && class->ext->events) {
2257 mono_loader_unlock ();
2261 mono_class_alloc_ext (class);
2263 if (class->generic_class) {
2264 MonoClass *gklass = class->generic_class->container_class;
2265 MonoGenericContext *context;
2267 mono_class_setup_events (gklass);
2268 if (gklass->exception_type) {
2269 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2270 mono_loader_unlock ();
2274 class->ext->event = gklass->ext->event;
2275 class->ext->events = mono_class_new0 (class, MonoEvent, class->ext->event.count);
2277 if (class->ext->event.count)
2278 context = mono_class_get_context (class);
2280 for (i = 0; i < class->ext->event.count; i++) {
2281 MonoEvent *event = &class->ext->events [i];
2282 MonoEvent *gevent = &gklass->ext->events [i];
2284 event->parent = class;
2285 event->name = gevent->name;
2286 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2287 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2288 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2289 #ifndef MONO_SMALL_CONFIG
2290 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2292 event->attrs = gevent->attrs;
2295 mono_loader_unlock ();
2299 first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2300 count = last - first;
2303 mono_class_setup_methods (class);
2304 if (class->exception_type) {
2305 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2306 mono_loader_unlock ();
2310 class->ext->event.first = first;
2311 class->ext->event.count = count;
2312 events = mono_class_alloc0 (class, sizeof (MonoEvent) * class->ext->event.count);
2313 for (i = first; i < last; ++i) {
2314 MonoEvent *event = &events [i - first];
2316 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2317 event->parent = class;
2318 event->attrs = cols [MONO_EVENT_FLAGS];
2319 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2321 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2322 for (j = startm; j < endm; ++j) {
2325 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2327 if (class->image->uncompressed_metadata)
2328 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2329 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2331 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2333 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2334 case METHOD_SEMANTIC_ADD_ON:
2335 event->add = method;
2337 case METHOD_SEMANTIC_REMOVE_ON:
2338 event->remove = method;
2340 case METHOD_SEMANTIC_FIRE:
2341 event->raise = method;
2343 case METHOD_SEMANTIC_OTHER: {
2344 #ifndef MONO_SMALL_CONFIG
2347 if (event->other == NULL) {
2348 event->other = g_new0 (MonoMethod*, 2);
2350 while (event->other [n])
2352 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2354 event->other [n] = method;
2355 /* NULL terminated */
2356 event->other [n + 1] = NULL;
2365 /*Flush any pending writes as we do double checked locking on class->properties */
2366 mono_memory_barrier ();
2368 /* Leave this assignment as the last op in the function */
2369 class->ext->events = events;
2371 mono_loader_unlock ();
2375 * Global pool of interface IDs, represented as a bitset.
2376 * LOCKING: this is supposed to be accessed with the loader lock held.
2378 static MonoBitSet *global_interface_bitset = NULL;
2381 * mono_unload_interface_ids:
2382 * @bitset: bit set of interface IDs
2384 * When an image is unloaded, the interface IDs associated with
2385 * the image are put back in the global pool of IDs so the numbers
2389 mono_unload_interface_ids (MonoBitSet *bitset)
2391 mono_loader_lock ();
2392 mono_bitset_sub (global_interface_bitset, bitset);
2393 mono_loader_unlock ();
2397 * mono_get_unique_iid:
2400 * Assign a unique integer ID to the interface represented by @class.
2401 * The ID will positive and as small as possible.
2402 * LOCKING: this is supposed to be called with the loader lock held.
2403 * Returns: the new ID.
2406 mono_get_unique_iid (MonoClass *class)
2410 g_assert (MONO_CLASS_IS_INTERFACE (class));
2412 if (!global_interface_bitset) {
2413 global_interface_bitset = mono_bitset_new (128, 0);
2416 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2418 int old_size = mono_bitset_size (global_interface_bitset);
2419 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2420 mono_bitset_free (global_interface_bitset);
2421 global_interface_bitset = new_set;
2424 mono_bitset_set (global_interface_bitset, iid);
2425 /* set the bit also in the per-image set */
2426 if (class->image->interface_bitset) {
2427 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2428 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2429 mono_bitset_free (class->image->interface_bitset);
2430 class->image->interface_bitset = new_set;
2433 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2435 mono_bitset_set (class->image->interface_bitset, iid);
2437 #ifndef MONO_SMALL_CONFIG
2438 if (mono_print_vtable) {
2440 char *type_name = mono_type_full_name (&class->byval_arg);
2441 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2442 generic_id = class->generic_class->context.class_inst->id;
2443 g_assert (generic_id != 0);
2447 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2452 g_assert (iid <= 65535);
2457 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res, MonoError *error)
2462 mono_class_setup_interfaces (klass, error);
2463 if (!mono_error_ok (error))
2466 for (i = 0; i < klass->interface_count; i++) {
2467 ic = klass->interfaces [i];
2470 *res = g_ptr_array_new ();
2471 g_ptr_array_add (*res, ic);
2472 mono_class_init (ic);
2474 collect_implemented_interfaces_aux (ic, res, error);
2475 if (!mono_error_ok (error))
2481 mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error)
2483 GPtrArray *res = NULL;
2485 collect_implemented_interfaces_aux (klass, &res, error);
2486 if (!mono_error_ok (error)) {
2488 g_ptr_array_free (res, TRUE);
2495 compare_interface_ids (const void *p_key, const void *p_element) {
2496 const MonoClass *key = p_key;
2497 const MonoClass *element = *(MonoClass**) p_element;
2499 return (key->interface_id - element->interface_id);
2502 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2504 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2505 MonoClass **result = bsearch (
2507 klass->interfaces_packed,
2508 klass->interface_offsets_count,
2509 sizeof (MonoClass *),
2510 compare_interface_ids);
2512 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2519 * mono_class_interface_offset_with_variance:
2521 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2522 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2524 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2526 * FIXME figure out MS disambiguation rules and fix this function.
2529 mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match) {
2530 int i = mono_class_interface_offset (klass, itf);
2531 *non_exact_match = FALSE;
2535 if (!mono_class_has_variant_generic_params (itf))
2538 for (i = 0; i < klass->interface_offsets_count; i++) {
2539 if (mono_class_is_variant_compatible (itf, klass->interfaces_packed [i])) {
2540 *non_exact_match = TRUE;
2541 return klass->interface_offsets_packed [i];
2549 print_implemented_interfaces (MonoClass *klass) {
2552 GPtrArray *ifaces = NULL;
2554 int ancestor_level = 0;
2556 name = mono_type_get_full_name (klass);
2557 printf ("Packed interface table for class %s has size %d\n", name, klass->interface_offsets_count);
2560 for (i = 0; i < klass->interface_offsets_count; i++)
2561 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2562 klass->interfaces_packed [i]->interface_id,
2563 klass->interface_offsets_packed [i],
2564 klass->interfaces_packed [i]->method.count,
2565 klass->interfaces_packed [i]->name_space,
2566 klass->interfaces_packed [i]->name );
2567 printf ("Interface flags: ");
2568 for (i = 0; i <= klass->max_interface_id; i++)
2569 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2570 printf ("(%d,T)", i);
2572 printf ("(%d,F)", i);
2574 printf ("Dump interface flags:");
2575 #ifdef COMPRESSED_INTERFACE_BITMAP
2577 const uint8_t* p = klass->interface_bitmap;
2578 i = klass->max_interface_id;
2580 printf (" %d x 00 %02X", p [0], p [1]);
2586 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2587 printf (" %02X", klass->interface_bitmap [i]);
2590 while (klass != NULL) {
2591 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2592 ifaces = mono_class_get_implemented_interfaces (klass, &error);
2593 if (!mono_error_ok (&error)) {
2594 printf (" Type failed due to %s\n", mono_error_get_message (&error));
2595 mono_error_cleanup (&error);
2596 } else if (ifaces) {
2597 for (i = 0; i < ifaces->len; i++) {
2598 MonoClass *ic = g_ptr_array_index (ifaces, i);
2599 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2600 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2602 mono_class_interface_offset (klass, ic),
2607 g_ptr_array_free (ifaces, TRUE);
2610 klass = klass->parent;
2615 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2618 args [0] = &arg0->byval_arg;
2620 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2624 array_class_get_if_rank (MonoClass *class, guint rank)
2626 return rank ? mono_array_class_get (class, rank) : class;
2630 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2632 valuetype_types [0] = eclass;
2633 if (eclass == mono_defaults.int16_class)
2634 valuetype_types [1] = mono_defaults.uint16_class;
2635 else if (eclass == mono_defaults.uint16_class)
2636 valuetype_types [1] = mono_defaults.int16_class;
2637 else if (eclass == mono_defaults.int32_class)
2638 valuetype_types [1] = mono_defaults.uint32_class;
2639 else if (eclass == mono_defaults.uint32_class)
2640 valuetype_types [1] = mono_defaults.int32_class;
2641 else if (eclass == mono_defaults.int64_class)
2642 valuetype_types [1] = mono_defaults.uint64_class;
2643 else if (eclass == mono_defaults.uint64_class)
2644 valuetype_types [1] = mono_defaults.int64_class;
2645 else if (eclass == mono_defaults.byte_class)
2646 valuetype_types [1] = mono_defaults.sbyte_class;
2647 else if (eclass == mono_defaults.sbyte_class)
2648 valuetype_types [1] = mono_defaults.byte_class;
2649 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2650 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2653 /* this won't be needed once bug #325495 is completely fixed
2654 * though we'll need something similar to know which interfaces to allow
2655 * in arrays when they'll be lazyly created
2657 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2658 * MS returns diferrent types based on which instance is called. For example:
2659 * object obj = new byte[10][];
2660 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2661 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2664 * Fixing this should kill quite some code, save some bits and improve compatibility.
2667 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2669 MonoClass *eclass = class->element_class;
2670 static MonoClass* generic_icollection_class = NULL;
2671 static MonoClass* generic_ienumerable_class = NULL;
2672 static MonoClass* generic_ienumerator_class = NULL;
2673 MonoClass *valuetype_types[2] = { NULL, NULL };
2674 MonoClass **interfaces = NULL;
2675 int i, interface_count, real_count, original_rank;
2677 gboolean internal_enumerator;
2678 gboolean eclass_is_valuetype;
2680 if (!mono_defaults.generic_ilist_class) {
2684 internal_enumerator = FALSE;
2685 eclass_is_valuetype = FALSE;
2686 original_rank = eclass->rank;
2687 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2688 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2690 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2692 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2693 original_rank = eclass->rank;
2694 eclass = eclass->element_class;
2695 internal_enumerator = TRUE;
2696 *is_enumerator = TRUE;
2704 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2705 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2707 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2709 if (!generic_icollection_class) {
2710 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2711 "System.Collections.Generic", "ICollection`1");
2712 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2713 "System.Collections.Generic", "IEnumerable`1");
2714 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2715 "System.Collections.Generic", "IEnumerator`1");
2718 mono_class_init (eclass);
2721 * Arrays in 2.0 need to implement a number of generic interfaces
2722 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2723 * on the element class). We collect the types needed to build the
2724 * instantiations in interfaces at intervals of 3, because 3 are
2725 * the generic interfaces needed to implement.
2727 if (eclass->valuetype) {
2728 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2730 /* IList, ICollection, IEnumerable */
2731 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2732 if (internal_enumerator) {
2734 if (valuetype_types [1])
2738 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2739 interfaces [0] = valuetype_types [0];
2740 if (valuetype_types [1])
2741 interfaces [3] = valuetype_types [1];
2743 eclass_is_valuetype = TRUE;
2746 int idepth = eclass->idepth;
2747 if (!internal_enumerator)
2750 // FIXME: This doesn't seem to work/required for generic params
2751 if (!(eclass->this_arg.type == MONO_TYPE_VAR || eclass->this_arg.type == MONO_TYPE_MVAR || (eclass->image->dynamic && !eclass->wastypebuilder)))
2752 mono_class_setup_interface_offsets (eclass);
2754 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2755 /* we add object for interfaces and the supertypes for the other
2756 * types. The last of the supertypes is the element class itself which we
2757 * already created the explicit interfaces for (so we include it for IEnumerator
2758 * and exclude it for arrays).
2760 if (MONO_CLASS_IS_INTERFACE (eclass))
2763 interface_count += idepth;
2764 if (eclass->rank && eclass->element_class->valuetype) {
2765 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2766 if (valuetype_types [1])
2769 /* IList, ICollection, IEnumerable */
2770 interface_count *= 3;
2771 real_count = interface_count;
2772 if (internal_enumerator) {
2773 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2774 if (valuetype_types [1])
2777 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2778 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2779 interfaces [0] = mono_defaults.object_class;
2783 for (i = 0; i < idepth; i++) {
2784 mono_class_init (eclass->supertypes [i]);
2785 interfaces [j] = eclass->supertypes [i];
2789 if (all_interfaces) {
2790 for (i = 0; i < eclass->interface_offsets_count; i++) {
2791 interfaces [j] = eclass->interfaces_packed [i];
2795 for (i = 0; i < eclass->interface_count; i++) {
2796 interfaces [j] = eclass->interfaces [i];
2800 if (valuetype_types [1]) {
2801 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2806 /* instantiate the generic interfaces */
2807 for (i = 0; i < interface_count; i += 3) {
2808 MonoClass *iface = interfaces [i];
2810 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2811 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2812 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2814 if (internal_enumerator) {
2816 /* instantiate IEnumerator<iface> */
2817 for (i = 0; i < interface_count; i++) {
2818 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2820 j = interface_count;
2821 if (!eclass_is_valuetype) {
2822 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2823 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2826 for (i = 0; i < eclass->idepth; i++) {
2827 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2831 for (i = 0; i < eclass->interface_offsets_count; i++) {
2832 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2836 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2838 if (valuetype_types [1])
2839 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2843 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2844 for (i = 0; i < real_count; ++i) {
2845 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2846 g_print ("%s implements %s\n", type_name, name);
2857 find_array_interface (MonoClass *klass, const char *name)
2860 for (i = 0; i < klass->interface_count; ++i) {
2861 if (strcmp (klass->interfaces [i]->name, name) == 0)
2868 * Return the number of virtual methods.
2869 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2870 * Return -1 on failure.
2871 * FIXME It would be nice if this information could be cached somewhere.
2874 count_virtual_methods (MonoClass *class)
2878 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2880 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2881 mono_class_setup_methods (class);
2882 if (class->exception_type)
2885 for (i = 0; i < class->method.count; ++i) {
2886 flags = class->methods [i]->flags;
2887 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2891 for (i = 0; i < class->method.count; ++i) {
2892 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2894 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2902 find_interface (int num_ifaces, MonoClass **interfaces_full, MonoClass *ic)
2910 m = (l + num_ifaces) / 2;
2911 if (interfaces_full [m] == ic)
2913 if (l == num_ifaces)
2915 if (!interfaces_full [m] || interfaces_full [m]->interface_id > ic->interface_id) {
2924 find_interface_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic)
2926 int i = find_interface (num_ifaces, interfaces_full, ic);
2928 return interface_offsets_full [i];
2933 set_interface_and_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic, int offset, mono_bool force_set)
2935 int i = find_interface (num_ifaces, interfaces_full, ic);
2939 interface_offsets_full [i] = offset;
2942 for (i = 0; i < num_ifaces; ++i) {
2943 if (interfaces_full [i]) {
2945 if (interfaces_full [i]->interface_id < ic->interface_id)
2948 while (end < num_ifaces && interfaces_full [end]) end++;
2949 memmove (interfaces_full + i + 1, interfaces_full + i, sizeof (MonoClass*) * (end - i));
2950 memmove (interface_offsets_full + i + 1, interface_offsets_full + i, sizeof (int) * (end - i));
2952 interfaces_full [i] = ic;
2953 interface_offsets_full [i] = offset;
2959 #ifdef COMPRESSED_INTERFACE_BITMAP
2962 * Compressed interface bitmap design.
2964 * Interface bitmaps take a large amount of memory, because their size is
2965 * linear with the maximum interface id assigned in the process (each interface
2966 * is assigned a unique id as it is loaded). The number of interface classes
2967 * is high because of the many implicit interfaces implemented by arrays (we'll
2968 * need to lazy-load them in the future).
2969 * Most classes implement a very small number of interfaces, so the bitmap is
2970 * sparse. This bitmap needs to be checked by interface casts, so access to the
2971 * needed bit must be fast and doable with few jit instructions.
2973 * The current compression format is as follows:
2974 * *) it is a sequence of one or more two-byte elements
2975 * *) the first byte in the element is the count of empty bitmap bytes
2976 * at the current bitmap position
2977 * *) the second byte in the element is an actual bitmap byte at the current
2980 * As an example, the following compressed bitmap bytes:
2981 * 0x07 0x01 0x00 0x7
2982 * correspond to the following bitmap:
2983 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
2985 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
2986 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
2987 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
2991 * mono_compress_bitmap:
2992 * @dest: destination buffer
2993 * @bitmap: bitmap buffer
2994 * @size: size of @bitmap in bytes
2996 * This is a mono internal function.
2997 * The @bitmap data is compressed into a format that is small but
2998 * still searchable in few instructions by the JIT and runtime.
2999 * The compressed data is stored in the buffer pointed to by the
3000 * @dest array. Passing a #NULL value for @dest allows to just compute
3001 * the size of the buffer.
3002 * This compression algorithm assumes the bits set in the bitmap are
3003 * few and far between, like in interface bitmaps.
3004 * Returns: the size of the compressed bitmap in bytes.
3007 mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size)
3011 const uint8_t *end = bitmap + size;
3012 while (bitmap < end) {
3013 if (*bitmap || numz == 255) {
3037 * mono_class_interface_match:
3038 * @bitmap: a compressed bitmap buffer
3039 * @id: the index to check in the bitmap
3041 * This is a mono internal function.
3042 * Checks if a bit is set in a compressed interface bitmap. @id must
3043 * be already checked for being smaller than the maximum id encoded in the
3046 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
3050 mono_class_interface_match (const uint8_t *bitmap, int id)
3053 id -= bitmap [0] * 8;
3057 return bitmap [1] & (1 << id);
3066 * LOCKING: this is supposed to be called with the loader lock held.
3067 * Return -1 on failure and set exception_type
3070 setup_interface_offsets (MonoClass *class, int cur_slot)
3074 int i, j, max_iid, num_ifaces;
3075 MonoClass **interfaces_full = NULL;
3076 int *interface_offsets_full = NULL;
3078 GPtrArray **ifaces_array = NULL;
3079 int interface_offsets_count;
3080 MonoClass **array_interfaces = NULL;
3081 int num_array_interfaces;
3082 int is_enumerator = FALSE;
3084 mono_class_setup_supertypes (class);
3086 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
3087 * implicit interfaces have the property that they are assigned the same slot in the
3088 * vtables for compatible interfaces
3090 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
3092 /* compute maximum number of slots and maximum interface id */
3094 num_ifaces = num_array_interfaces; /* this can include duplicated ones */
3095 ifaces_array = g_new0 (GPtrArray *, class->idepth);
3096 for (j = 0; j < class->idepth; j++) {
3097 k = class->supertypes [j];
3098 num_ifaces += k->interface_count;
3099 for (i = 0; i < k->interface_count; i++) {
3100 ic = k->interfaces [i];
3103 mono_class_init (ic);
3105 if (max_iid < ic->interface_id)
3106 max_iid = ic->interface_id;
3108 ifaces = mono_class_get_implemented_interfaces (k, &error);
3109 if (!mono_error_ok (&error)) {
3110 char *name = mono_type_get_full_name (k);
3111 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)));
3113 mono_error_cleanup (&error);
3118 num_ifaces += ifaces->len;
3119 for (i = 0; i < ifaces->len; ++i) {
3120 ic = g_ptr_array_index (ifaces, i);
3121 if (max_iid < ic->interface_id)
3122 max_iid = ic->interface_id;
3124 ifaces_array [j] = ifaces;
3128 for (i = 0; i < num_array_interfaces; ++i) {
3129 ic = array_interfaces [i];
3130 mono_class_init (ic);
3131 if (max_iid < ic->interface_id)
3132 max_iid = ic->interface_id;
3135 if (MONO_CLASS_IS_INTERFACE (class)) {
3137 if (max_iid < class->interface_id)
3138 max_iid = class->interface_id;
3140 class->max_interface_id = max_iid;
3141 /* compute vtable offset for interfaces */
3142 interfaces_full = g_malloc0 (sizeof (MonoClass*) * num_ifaces);
3143 interface_offsets_full = g_malloc (sizeof (int) * num_ifaces);
3145 for (i = 0; i < num_ifaces; i++) {
3146 interface_offsets_full [i] = -1;
3149 /* skip the current class */
3150 for (j = 0; j < class->idepth - 1; j++) {
3151 k = class->supertypes [j];
3152 ifaces = ifaces_array [j];
3155 for (i = 0; i < ifaces->len; ++i) {
3157 ic = g_ptr_array_index (ifaces, i);
3159 /*Force the sharing of interface offsets between parent and subtypes.*/
3160 io = mono_class_interface_offset (k, ic);
3162 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, io, TRUE);
3167 g_assert (class == class->supertypes [class->idepth - 1]);
3168 ifaces = ifaces_array [class->idepth - 1];
3170 for (i = 0; i < ifaces->len; ++i) {
3172 ic = g_ptr_array_index (ifaces, i);
3173 if (set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, cur_slot, FALSE))
3175 count = count_virtual_methods (ic);
3177 char *name = mono_type_get_full_name (ic);
3178 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error calculating interface offset of %s", name));
3187 if (MONO_CLASS_IS_INTERFACE (class))
3188 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, class, cur_slot, TRUE);
3190 if (num_array_interfaces) {
3191 if (is_enumerator) {
3192 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
3193 int ienumerator_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ienumerator_idx]);
3194 g_assert (ienumerator_offset >= 0);
3195 for (i = 0; i < num_array_interfaces; ++i) {
3196 ic = array_interfaces [i];
3197 if (strcmp (ic->name, "IEnumerator`1") == 0)
3198 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, ienumerator_offset, TRUE);
3200 g_assert_not_reached ();
3201 /*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);*/
3204 int ilist_offset, icollection_offset, ienumerable_offset;
3205 int ilist_iface_idx = find_array_interface (class, "IList`1");
3206 MonoClass* ilist_class = class->interfaces [ilist_iface_idx];
3207 int icollection_iface_idx = find_array_interface (ilist_class, "ICollection`1");
3208 int ienumerable_iface_idx = find_array_interface (ilist_class, "IEnumerable`1");
3209 ilist_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ilist_iface_idx]);
3210 icollection_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [icollection_iface_idx]);
3211 ienumerable_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [ienumerable_iface_idx]);
3212 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
3213 for (i = 0; i < num_array_interfaces; ++i) {
3215 ic = array_interfaces [i];
3216 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
3217 offset = ilist_offset;
3218 else if (strcmp (ic->name, "ICollection`1") == 0)
3219 offset = icollection_offset;
3220 else if (strcmp (ic->name, "IEnumerable`1") == 0)
3221 offset = ienumerable_offset;
3223 g_assert_not_reached ();
3224 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, offset, TRUE);
3225 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3230 for (interface_offsets_count = 0, i = 0; i < num_ifaces; i++) {
3231 if (interface_offsets_full [i] != -1) {
3232 interface_offsets_count ++;
3237 * We might get called twice: once from mono_class_init () then once from
3238 * mono_class_setup_vtable ().
3240 if (class->interfaces_packed) {
3241 g_assert (class->interface_offsets_count == interface_offsets_count);
3245 class->interface_offsets_count = interface_offsets_count;
3246 class->interfaces_packed = mono_class_alloc (class, sizeof (MonoClass*) * interface_offsets_count);
3247 class->interface_offsets_packed = mono_class_alloc (class, sizeof (guint16) * interface_offsets_count);
3248 bsize = (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0);
3249 #ifdef COMPRESSED_INTERFACE_BITMAP
3250 bitmap = g_malloc0 (bsize);
3252 bitmap = mono_class_alloc0 (class, bsize);
3254 for (i = 0; i < interface_offsets_count; i++) {
3255 int id = interfaces_full [i]->interface_id;
3256 bitmap [id >> 3] |= (1 << (id & 7));
3257 class->interfaces_packed [i] = interfaces_full [i];
3258 class->interface_offsets_packed [i] = interface_offsets_full [i];
3259 /*if (num_array_interfaces)
3260 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]);*/
3262 #ifdef COMPRESSED_INTERFACE_BITMAP
3263 i = mono_compress_bitmap (NULL, bitmap, bsize);
3264 class->interface_bitmap = mono_class_alloc0 (class, i);
3265 mono_compress_bitmap (class->interface_bitmap, bitmap, bsize);
3268 class->interface_bitmap = bitmap;
3273 g_free (interfaces_full);
3274 g_free (interface_offsets_full);
3275 g_free (array_interfaces);
3276 for (i = 0; i < class->idepth; i++) {
3277 ifaces = ifaces_array [i];
3279 g_ptr_array_free (ifaces, TRUE);
3281 g_free (ifaces_array);
3283 //printf ("JUST DONE: ");
3284 //print_implemented_interfaces (class);
3290 * Setup interface offsets for interfaces.
3292 * - class->max_interface_id
3293 * - class->interface_offsets_count
3294 * - class->interfaces_packed
3295 * - class->interface_offsets_packed
3296 * - class->interface_bitmap
3298 * This function can fail @class.
3301 mono_class_setup_interface_offsets (MonoClass *class)
3303 mono_loader_lock ();
3305 setup_interface_offsets (class, 0);
3307 mono_loader_unlock ();
3311 * mono_class_setup_vtable:
3313 * Creates the generic vtable of CLASS.
3314 * Initializes the following fields in MonoClass:
3317 * Plus all the fields initialized by setup_interface_offsets ().
3318 * If there is an error during vtable construction, class->exception_type is set.
3320 * LOCKING: Acquires the loader lock.
3323 mono_class_setup_vtable (MonoClass *class)
3325 MonoMethod **overrides;
3326 MonoGenericContext *context;
3334 if (mono_debug_using_mono_debugger ())
3335 /* The debugger currently depends on this */
3336 mono_class_setup_methods (class);
3338 if (MONO_CLASS_IS_INTERFACE (class)) {
3339 /* This sets method->slot for all methods if this is an interface */
3340 mono_class_setup_methods (class);
3344 if (class->exception_type)
3347 mono_loader_lock ();
3349 if (class->vtable) {
3350 mono_loader_unlock ();
3354 mono_stats.generic_vtable_count ++;
3356 if (class->generic_class) {
3357 context = mono_class_get_context (class);
3358 type_token = class->generic_class->container_class->type_token;
3360 context = (MonoGenericContext *) class->generic_container;
3361 type_token = class->type_token;
3364 if (class->image->dynamic) {
3365 /* Generic instances can have zero method overrides without causing any harm.
3366 * This is true since we don't do layout all over again for them, we simply inflate
3367 * the layout of the parent.
3369 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
3371 /* The following call fails if there are missing methods in the type */
3372 /* FIXME it's probably a good idea to avoid this for generic instances. */
3373 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
3377 mono_class_setup_vtable_general (class, overrides, onum);
3381 mono_loader_unlock ();
3386 #define DEBUG_INTERFACE_VTABLE_CODE 0
3387 #define TRACE_INTERFACE_VTABLE_CODE 0
3388 #define VERIFY_INTERFACE_VTABLE_CODE 0
3389 #define VTABLE_SELECTOR (1)
3391 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3392 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3393 if (!(VTABLE_SELECTOR)) break; \
3397 #define DEBUG_INTERFACE_VTABLE(stmt)
3400 #if TRACE_INTERFACE_VTABLE_CODE
3401 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3402 if (!(VTABLE_SELECTOR)) break; \
3406 #define TRACE_INTERFACE_VTABLE(stmt)
3409 #if VERIFY_INTERFACE_VTABLE_CODE
3410 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3411 if (!(VTABLE_SELECTOR)) break; \
3415 #define VERIFY_INTERFACE_VTABLE(stmt)
3419 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3421 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
3425 GString *res = g_string_new ("");
3427 g_string_append_c (res, '(');
3428 for (i = 0; i < sig->param_count; ++i) {
3430 g_string_append_c (res, ',');
3431 mono_type_get_desc (res, sig->params [i], include_namespace);
3433 g_string_append (res, ")=>");
3434 if (sig->ret != NULL) {
3435 mono_type_get_desc (res, sig->ret, include_namespace);
3437 g_string_append (res, "NULL");
3440 g_string_free (res, FALSE);
3444 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
3445 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
3446 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
3447 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
3455 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) {
3456 MonoMethodSignature *cmsig, *imsig;
3457 if (strcmp (im->name, cm->name) == 0) {
3458 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
3459 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3462 if (! slot_is_empty) {
3463 if (require_newslot) {
3464 if (! interface_is_explicitly_implemented_by_class) {
3465 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3468 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3469 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3473 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3476 cmsig = mono_method_signature (cm);
3477 imsig = mono_method_signature (im);
3478 if (!cmsig || !imsig) {
3479 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3483 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3484 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3485 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3486 TRACE_INTERFACE_VTABLE (printf ("]"));
3489 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3490 /* CAS - SecurityAction.InheritanceDemand on interface */
3491 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3492 mono_secman_inheritancedemand_method (cm, im);
3495 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3496 mono_security_core_clr_check_override (class, cm, im);
3497 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3500 MonoClass *ic = im->klass;
3501 const char *ic_name_space = ic->name_space;
3502 const char *ic_name = ic->name;
3505 if (! require_newslot) {
3506 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3509 if (cm->klass->rank == 0) {
3510 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3513 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
3514 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
3515 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3516 TRACE_INTERFACE_VTABLE (printf ("]"));
3519 if (mono_class_get_image (ic) != mono_defaults.corlib) {
3520 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
3523 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
3524 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
3527 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
3528 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
3532 subname = strstr (cm->name, ic_name_space);
3533 if (subname != cm->name) {
3534 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
3537 subname += strlen (ic_name_space);
3538 if (subname [0] != '.') {
3539 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
3543 if (strstr (subname, ic_name) != subname) {
3544 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
3547 subname += strlen (ic_name);
3548 if (subname [0] != '.') {
3549 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
3553 if (strcmp (subname, im->name) != 0) {
3554 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3558 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3559 /* CAS - SecurityAction.InheritanceDemand on interface */
3560 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3561 mono_secman_inheritancedemand_method (cm, im);
3564 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3565 mono_security_core_clr_check_override (class, cm, im);
3567 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3572 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3574 foreach_override (gpointer key, gpointer value, gpointer user_data) {
3575 MonoMethod *method = key;
3576 MonoMethod *override = value;
3577 MonoClass *method_class = mono_method_get_class (method);
3578 MonoClass *override_class = mono_method_get_class (override);
3580 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3581 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
3582 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
3585 print_overrides (GHashTable *override_map, const char *message) {
3587 printf ("Override map \"%s\" START:\n", message);
3588 g_hash_table_foreach (override_map, foreach_override, NULL);
3589 printf ("Override map \"%s\" END.\n", message);
3591 printf ("Override map \"%s\" EMPTY.\n", message);
3595 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
3596 char *full_name = mono_type_full_name (&class->byval_arg);
3600 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
3602 if (print_interfaces) {
3603 print_implemented_interfaces (class);
3604 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3607 if (class->parent) {
3608 parent_size = class->parent->vtable_size;
3612 for (i = 0; i < size; ++i) {
3613 MonoMethod *cm = vtable [i];
3615 char *cm_name = mono_method_full_name (cm, TRUE);
3616 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3617 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
3626 #if VERIFY_INTERFACE_VTABLE_CODE
3628 mono_method_try_get_vtable_index (MonoMethod *method)
3630 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3631 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3632 if (imethod->declaring->is_generic)
3633 return imethod->declaring->slot;
3635 return method->slot;
3639 mono_class_verify_vtable (MonoClass *class)
3642 char *full_name = mono_type_full_name (&class->byval_arg);
3644 printf ("*** Verifying VTable of class '%s' \n", full_name);
3648 if (!class->methods)
3651 for (i = 0; i < class->method.count; ++i) {
3652 MonoMethod *cm = class->methods [i];
3655 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3659 full_name = mono_method_full_name (cm, TRUE);
3661 slot = mono_method_try_get_vtable_index (cm);
3663 if (slot >= class->vtable_size) {
3664 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3668 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3669 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3670 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3671 g_free (other_name);
3674 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3681 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3683 char *method_signature;
3686 for (index = 0; index < onum; ++index) {
3687 mono_trace_warning (MONO_TRACE_TYPE, " at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3688 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3690 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3691 type_name = mono_type_full_name (&class->byval_arg);
3692 mono_trace_warning (MONO_TRACE_TYPE, "no implementation for interface method %s::%s(%s) in class %s\n",
3693 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3694 g_free (method_signature);
3696 mono_class_setup_methods (class);
3697 if (class->exception_type) {
3698 char *name = mono_type_get_full_name (class);
3699 mono_trace_warning (MONO_TRACE_TYPE, "CLASS %s failed to resolve methods\n", name);
3703 for (index = 0; index < class->method.count; ++index) {
3704 MonoMethod *cm = class->methods [index];
3705 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3707 mono_trace_warning (MONO_TRACE_TYPE, "METHOD %s(%s)\n", cm->name, method_signature);
3708 g_free (method_signature);
3713 verify_class_overrides (MonoClass *class, MonoMethod **overrides, int onum)
3717 for (i = 0; i < onum; ++i) {
3718 MonoMethod *decl = overrides [i * 2];
3719 MonoMethod *body = overrides [i * 2 + 1];
3721 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3722 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3726 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3727 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3728 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3730 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3734 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3735 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3736 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3738 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3742 if (!mono_class_is_assignable_from_slow (decl->klass, class)) {
3743 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3750 * LOCKING: this is supposed to be called with the loader lock held.
3753 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3757 MonoMethod **vtable;
3758 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3759 GPtrArray *ifaces = NULL;
3760 GHashTable *override_map = NULL;
3761 gboolean security_enabled = mono_is_security_manager_active ();
3763 gpointer class_iter;
3764 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3765 int first_non_interface_slot;
3767 GSList *virt_methods = NULL, *l;
3772 if (overrides && !verify_class_overrides (class, overrides, onum))
3775 ifaces = mono_class_get_implemented_interfaces (class, &error);
3776 if (!mono_error_ok (&error)) {
3777 char *name = mono_type_get_full_name (class);
3778 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)));
3780 mono_error_cleanup (&error);
3782 } else if (ifaces) {
3783 for (i = 0; i < ifaces->len; i++) {
3784 MonoClass *ic = g_ptr_array_index (ifaces, i);
3785 max_vtsize += ic->method.count;
3787 g_ptr_array_free (ifaces, TRUE);
3791 if (class->parent) {
3792 mono_class_init (class->parent);
3793 mono_class_setup_vtable (class->parent);
3795 if (class->parent->exception_type) {
3796 char *name = mono_type_get_full_name (class->parent);
3797 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Parent %s failed to load", name));
3802 max_vtsize += class->parent->vtable_size;
3803 cur_slot = class->parent->vtable_size;
3806 max_vtsize += class->method.count;
3808 vtable = alloca (sizeof (gpointer) * max_vtsize);
3809 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3811 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3813 cur_slot = setup_interface_offsets (class, cur_slot);
3814 if (cur_slot == -1) /*setup_interface_offsets fails the type.*/
3817 max_iid = class->max_interface_id;
3818 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3820 /* Optimized version for generic instances */
3821 if (class->generic_class) {
3823 MonoClass *gklass = class->generic_class->container_class;
3826 mono_class_setup_vtable (gklass);
3827 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
3828 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3832 tmp = mono_class_alloc0 (class, sizeof (gpointer) * gklass->vtable_size);
3833 class->vtable_size = gklass->vtable_size;
3834 for (i = 0; i < gklass->vtable_size; ++i)
3835 if (gklass->vtable [i]) {
3836 MonoMethod *inflated = mono_class_inflate_generic_method_full_checked (gklass->vtable [i], class, mono_class_get_context (class), &error);
3837 if (!mono_error_ok (&error)) {
3838 char *err_msg = g_strdup_printf ("Could not inflate method due to %s", mono_error_get_message (&error));
3839 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
3841 mono_error_cleanup (&error);
3845 tmp [i]->slot = gklass->vtable [i]->slot;
3847 mono_memory_barrier ();
3848 class->vtable = tmp;
3850 /* Have to set method->slot for abstract virtual methods */
3851 if (class->methods && gklass->methods) {
3852 for (i = 0; i < class->method.count; ++i)
3853 if (class->methods [i]->slot == -1)
3854 class->methods [i]->slot = gklass->methods [i]->slot;
3860 if (class->parent && class->parent->vtable_size) {
3861 MonoClass *parent = class->parent;
3864 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3866 // Also inherit parent interface vtables, just as a starting point.
3867 // This is needed otherwise bug-77127.exe fails when the property methods
3868 // have different names in the iterface and the class, because for child
3869 // classes the ".override" information is not used anymore.
3870 for (i = 0; i < parent->interface_offsets_count; i++) {
3871 MonoClass *parent_interface = parent->interfaces_packed [i];
3872 int interface_offset = mono_class_interface_offset (class, parent_interface);
3873 /*FIXME this is now dead code as this condition will never hold true.
3874 Since interface offsets are inherited then the offset of an interface implemented
3875 by a parent will never be the out of it's vtable boundary.
3877 if (interface_offset >= parent->vtable_size) {
3878 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3881 mono_class_setup_methods (parent_interface); /*FIXME Just kill this whole chunk of dead code*/
3882 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3883 for (j = 0; j < parent_interface->method.count && !class->exception_type; j++) {
3884 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3885 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3886 parent_interface_offset + j, parent_interface_offset, j,
3887 interface_offset + j, interface_offset, j));
3894 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3895 /* override interface methods */
3896 for (i = 0; i < onum; i++) {
3897 MonoMethod *decl = overrides [i*2];
3898 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3900 dslot = mono_method_get_vtable_slot (decl);
3902 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3906 dslot += mono_class_interface_offset (class, decl->klass);
3907 vtable [dslot] = overrides [i*2 + 1];
3908 vtable [dslot]->slot = dslot;
3910 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3912 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3914 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3915 mono_security_core_clr_check_override (class, vtable [dslot], decl);
3918 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3919 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3922 * Create a list of virtual methods to avoid calling
3923 * mono_class_get_virtual_methods () which is slow because of the metadata
3927 gpointer iter = NULL;
3930 virt_methods = NULL;
3931 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3932 virt_methods = g_slist_prepend (virt_methods, cm);
3934 if (class->exception_type)
3938 // Loop on all implemented interfaces...
3939 for (i = 0; i < class->interface_offsets_count; i++) {
3940 MonoClass *parent = class->parent;
3942 gboolean interface_is_explicitly_implemented_by_class;
3945 ic = class->interfaces_packed [i];
3946 ic_offset = mono_class_interface_offset (class, ic);
3948 mono_class_setup_methods (ic);
3949 if (ic->exception_type)
3952 // Check if this interface is explicitly implemented (instead of just inherited)
3953 if (parent != NULL) {
3954 int implemented_interfaces_index;
3955 interface_is_explicitly_implemented_by_class = FALSE;
3956 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3957 if (ic == class->interfaces [implemented_interfaces_index]) {
3958 interface_is_explicitly_implemented_by_class = TRUE;
3963 interface_is_explicitly_implemented_by_class = TRUE;
3966 // Loop on all interface methods...
3967 for (im_index = 0; im_index < ic->method.count; im_index++) {
3968 MonoMethod *im = ic->methods [im_index];
3969 int im_slot = ic_offset + im->slot;
3970 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3972 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3975 // If there is an explicit implementation, just use it right away,
3976 // otherwise look for a matching method
3977 if (override_im == NULL) {
3982 // First look for a suitable method among the class methods
3984 for (l = virt_methods; l; l = l->next) {
3986 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)));
3987 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3988 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3989 vtable [im_slot] = cm;
3990 /* Why do we need this? */
3995 TRACE_INTERFACE_VTABLE (printf ("\n"));
3996 if (class->exception_type) /*Might be set by check_interface_method_override*/
4000 // If the slot is still empty, look in all the inherited virtual methods...
4001 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
4002 MonoClass *parent = class->parent;
4003 // Reverse order, so that last added methods are preferred
4004 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
4005 MonoMethod *cm = parent->vtable [cm_index];
4007 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));
4008 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
4009 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
4010 vtable [im_slot] = cm;
4011 /* Why do we need this? */
4017 if (class->exception_type) /*Might be set by check_interface_method_override*/
4019 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
4023 g_assert (vtable [im_slot] == override_im);
4028 // If the class is not abstract, check that all its interface slots are full.
4029 // The check is done here and not directly at the end of the loop above because
4030 // it can happen (for injected generic array interfaces) that the same slot is
4031 // processed multiple times (those interfaces have overlapping slots), and it
4032 // will not always be the first pass the one that fills the slot.
4033 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4034 for (i = 0; i < class->interface_offsets_count; i++) {
4038 ic = class->interfaces_packed [i];
4039 ic_offset = mono_class_interface_offset (class, ic);
4041 for (im_index = 0; im_index < ic->method.count; im_index++) {
4042 MonoMethod *im = ic->methods [im_index];
4043 int im_slot = ic_offset + im->slot;
4045 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4048 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
4049 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
4050 if (vtable [im_slot] == NULL) {
4051 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
4058 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
4060 for (l = virt_methods; l; l = l->next) {
4063 * If the method is REUSE_SLOT, we must check in the
4064 * base class for a method to override.
4066 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
4068 for (k = class->parent; k ; k = k->parent) {
4073 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
4074 MonoMethodSignature *cmsig, *m1sig;
4076 cmsig = mono_method_signature (cm);
4077 m1sig = mono_method_signature (m1);
4079 if (!cmsig || !m1sig) {
4080 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4084 if (!strcmp(cm->name, m1->name) &&
4085 mono_metadata_signature_equal (cmsig, m1sig)) {
4087 /* CAS - SecurityAction.InheritanceDemand */
4088 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
4089 mono_secman_inheritancedemand_method (cm, m1);
4092 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4093 mono_security_core_clr_check_override (class, cm, m1);
4095 slot = mono_method_get_vtable_slot (m1);
4099 g_assert (cm->slot < max_vtsize);
4101 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4102 g_hash_table_insert (override_map, m1, cm);
4106 if (k->exception_type)
4116 /*Non final newslot methods must be given a non-interface vtable slot*/
4117 if ((cm->flags & METHOD_ATTRIBUTE_NEW_SLOT) && !(cm->flags & METHOD_ATTRIBUTE_FINAL) && cm->slot >= 0)
4121 cm->slot = cur_slot++;
4123 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
4124 vtable [cm->slot] = cm;
4127 /* override non interface methods */
4128 for (i = 0; i < onum; i++) {
4129 MonoMethod *decl = overrides [i*2];
4130 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
4131 g_assert (decl->slot != -1);
4132 vtable [decl->slot] = overrides [i*2 + 1];
4133 overrides [i * 2 + 1]->slot = decl->slot;
4135 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4136 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
4138 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4139 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
4144 * If a method occupies more than one place in the vtable, and it is
4145 * overriden, then change the other occurances too.
4148 for (i = 0; i < max_vtsize; ++i)
4150 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
4155 g_hash_table_destroy (override_map);
4156 override_map = NULL;
4159 g_slist_free (virt_methods);
4160 virt_methods = NULL;
4162 /* Ensure that all vtable slots are filled with concrete instance methods */
4163 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4164 for (i = 0; i < cur_slot; ++i) {
4165 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
4166 char *type_name = mono_type_get_full_name (class);
4167 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
4168 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));
4170 g_free (method_name);
4176 if (class->generic_class) {
4177 MonoClass *gklass = class->generic_class->container_class;
4179 mono_class_init (gklass);
4181 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
4183 /* Check that the vtable_size value computed in mono_class_init () is correct */
4184 if (class->vtable_size)
4185 g_assert (cur_slot == class->vtable_size);
4186 class->vtable_size = cur_slot;
4189 /* Try to share the vtable with our parent. */
4190 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
4191 mono_memory_barrier ();
4192 class->vtable = class->parent->vtable;
4194 MonoMethod **tmp = mono_class_alloc0 (class, sizeof (gpointer) * class->vtable_size);
4195 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
4196 mono_memory_barrier ();
4197 class->vtable = tmp;
4200 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
4201 if (mono_print_vtable) {
4204 print_implemented_interfaces (class);
4206 for (i = 0; i <= max_iid; i++)
4207 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
4210 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
4211 class->vtable_size, icount);
4213 for (i = 0; i < cur_slot; ++i) {
4218 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
4219 mono_method_full_name (cm, TRUE));
4225 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
4226 class->name, max_iid);
4228 for (i = 0; i < class->interface_count; i++) {
4229 ic = class->interfaces [i];
4230 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
4231 mono_class_interface_offset (class, ic),
4232 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4235 for (k = class->parent; k ; k = k->parent) {
4236 for (i = 0; i < k->interface_count; i++) {
4237 ic = k->interfaces [i];
4238 printf (" parent slot offset: %03d, method count: %03d, iid: %03d %s\n",
4239 mono_class_interface_offset (class, ic),
4240 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4246 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
4251 char *name = mono_type_get_full_name (class);
4252 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("VTable setup of type %s failed", name));
4255 g_hash_table_destroy (override_map);
4257 g_slist_free (virt_methods);
4262 * mono_method_get_vtable_slot:
4264 * Returns method->slot, computing it if neccesary. Return -1 on failure.
4265 * LOCKING: Acquires the loader lock.
4267 * FIXME Use proper MonoError machinery here.
4270 mono_method_get_vtable_slot (MonoMethod *method)
4272 if (method->slot == -1) {
4273 mono_class_setup_vtable (method->klass);
4274 if (method->klass->exception_type)
4276 g_assert (method->slot != -1);
4278 return method->slot;
4282 * mono_method_get_vtable_index:
4285 * Returns the index into the runtime vtable to access the method or,
4286 * in the case of a virtual generic method, the virtual generic method
4287 * thunk. Returns -1 on failure.
4289 * FIXME Use proper MonoError machinery here.
4292 mono_method_get_vtable_index (MonoMethod *method)
4294 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
4295 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4296 if (imethod->declaring->is_generic)
4297 return mono_method_get_vtable_slot (imethod->declaring);
4299 return mono_method_get_vtable_slot (method);
4302 static MonoMethod *default_ghc = NULL;
4303 static MonoMethod *default_finalize = NULL;
4304 static int finalize_slot = -1;
4305 static int ghc_slot = -1;
4308 initialize_object_slots (MonoClass *class)
4313 if (class == mono_defaults.object_class) {
4314 mono_class_setup_vtable (class);
4315 for (i = 0; i < class->vtable_size; ++i) {
4316 MonoMethod *cm = class->vtable [i];
4318 if (!strcmp (cm->name, "GetHashCode"))
4320 else if (!strcmp (cm->name, "Finalize"))
4324 g_assert (ghc_slot > 0);
4325 default_ghc = class->vtable [ghc_slot];
4327 g_assert (finalize_slot > 0);
4328 default_finalize = class->vtable [finalize_slot];
4333 MonoMethod *array_method;
4335 } GenericArrayMethodInfo;
4337 static int generic_array_method_num = 0;
4338 static GenericArrayMethodInfo *generic_array_method_info = NULL;
4341 generic_array_methods (MonoClass *class)
4343 int i, count_generic = 0;
4344 GList *list = NULL, *tmp;
4345 if (generic_array_method_num)
4346 return generic_array_method_num;
4347 mono_class_setup_methods (class->parent); /*This is setting up System.Array*/
4348 g_assert (!class->parent->exception_type); /*So hitting this assert is a huge problem*/
4349 for (i = 0; i < class->parent->method.count; i++) {
4350 MonoMethod *m = class->parent->methods [i];
4351 if (!strncmp (m->name, "InternalArray__", 15)) {
4353 list = g_list_prepend (list, m);
4356 list = g_list_reverse (list);
4357 generic_array_method_info = mono_image_alloc (mono_defaults.corlib, sizeof (GenericArrayMethodInfo) * count_generic);
4359 for (tmp = list; tmp; tmp = tmp->next) {
4360 const char *mname, *iname;
4362 MonoMethod *m = tmp->data;
4363 generic_array_method_info [i].array_method = m;
4364 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
4365 iname = "System.Collections.Generic.ICollection`1.";
4366 mname = m->name + 27;
4367 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
4368 iname = "System.Collections.Generic.IEnumerable`1.";
4369 mname = m->name + 27;
4370 } else if (!strncmp (m->name, "InternalArray__", 15)) {
4371 iname = "System.Collections.Generic.IList`1.";
4372 mname = m->name + 15;
4374 g_assert_not_reached ();
4377 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
4378 strcpy (name, iname);
4379 strcpy (name + strlen (iname), mname);
4380 generic_array_method_info [i].name = name;
4383 /*g_print ("array generic methods: %d\n", count_generic);*/
4385 generic_array_method_num = count_generic;
4387 return generic_array_method_num;
4391 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
4393 MonoGenericContext tmp_context;
4396 tmp_context.class_inst = NULL;
4397 tmp_context.method_inst = iface->generic_class->context.class_inst;
4398 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
4400 for (i = 0; i < generic_array_method_num; i++) {
4401 MonoMethod *m = generic_array_method_info [i].array_method;
4402 MonoMethod *inflated;
4404 inflated = mono_class_inflate_generic_method (m, &tmp_context);
4405 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
4410 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
4412 int null_length = strlen ("(null)");
4413 int len = (s1 ? strlen (s1) : null_length) + (s2 ? strlen (s2) : null_length) + 2;
4414 char *s = mono_image_alloc (image, len);
4417 result = g_snprintf (s, len, "%s%c%s", s1 ? s1 : "(null)", '\0', s2 ? s2 : "(null)");
4418 g_assert (result == len - 1);
4424 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
4426 gpointer exception_data = NULL;
4428 switch (error->exception_type) {
4429 case MONO_EXCEPTION_TYPE_LOAD:
4430 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
4433 case MONO_EXCEPTION_MISSING_METHOD:
4434 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
4437 case MONO_EXCEPTION_MISSING_FIELD: {
4438 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
4439 const char *class_name;
4442 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
4444 class_name = error->klass->name;
4446 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
4449 g_free ((void*)class_name);
4453 case MONO_EXCEPTION_FILE_NOT_FOUND: {
4456 if (error->ref_only)
4457 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.";
4459 msg = "Could not load file or assembly '%s' or one of its dependencies.";
4461 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
4465 case MONO_EXCEPTION_BAD_IMAGE:
4466 exception_data = error->msg;
4470 g_assert_not_reached ();
4473 mono_class_set_failure (class, error->exception_type, exception_data);
4478 * @class: the class to initialize
4480 * Compute the instance_size, class_size and other infos that cannot be
4481 * computed at mono_class_get() time. Also compute vtable_size if possible.
4482 * Returns TRUE on success or FALSE if there was a problem in loading
4483 * the type (incorrect assemblies, missing assemblies, methods, etc).
4485 * LOCKING: Acquires the loader lock.
4488 mono_class_init (MonoClass *class)
4491 MonoCachedClassInfo cached_info;
4492 gboolean has_cached_info;
4496 /* Double-checking locking pattern */
4498 return class->exception_type == MONO_EXCEPTION_NONE;
4500 /*g_print ("Init class %s\n", class->name);*/
4502 /* We do everything inside the lock to prevent races */
4503 mono_loader_lock ();
4505 if (class->inited) {
4506 mono_loader_unlock ();
4507 /* Somebody might have gotten in before us */
4508 return class->exception_type == MONO_EXCEPTION_NONE;
4511 if (class->init_pending) {
4512 mono_loader_unlock ();
4513 /* this indicates a cyclic dependency */
4514 g_error ("pending init %s.%s\n", class->name_space, class->name);
4517 class->init_pending = 1;
4519 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4520 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4525 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
4526 MonoClass *element_class = class->element_class;
4527 if (!element_class->inited)
4528 mono_class_init (element_class);
4529 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
4530 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4535 /* CAS - SecurityAction.InheritanceDemand */
4536 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
4537 mono_secman_inheritancedemand_class (class, class->parent);
4540 mono_stats.initialized_class_count++;
4542 if (class->generic_class && !class->generic_class->is_dynamic) {
4543 MonoClass *gklass = class->generic_class->container_class;
4545 mono_stats.generic_class_count++;
4547 class->method = gklass->method;
4548 class->field = gklass->field;
4550 mono_class_init (gklass);
4551 // FIXME: Why is this needed ?
4552 if (!gklass->exception_type)
4553 mono_class_setup_methods (gklass);
4554 if (gklass->exception_type) {
4555 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Generic Type Defintion failed to init"));
4559 if (MONO_CLASS_IS_INTERFACE (class))
4560 class->interface_id = mono_get_unique_iid (class);
4563 if (class->parent && !class->parent->inited)
4564 mono_class_init (class->parent);
4566 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
4568 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
4569 class->nested_classes_inited = TRUE;
4572 * Computes the size used by the fields, and their locations
4574 if (has_cached_info) {
4575 class->instance_size = cached_info.instance_size;
4576 class->sizes.class_size = cached_info.class_size;
4577 class->packing_size = cached_info.packing_size;
4578 class->min_align = cached_info.min_align;
4579 class->blittable = cached_info.blittable;
4580 class->has_references = cached_info.has_references;
4581 class->has_static_refs = cached_info.has_static_refs;
4582 class->no_special_static_fields = cached_info.no_special_static_fields;
4585 if (!class->size_inited){
4586 mono_class_setup_fields (class);
4587 if (class->exception_type || mono_loader_get_last_error ())
4591 /* Initialize arrays */
4593 class->method.count = 3 + (class->rank > 1? 2: 1);
4595 if (class->interface_count) {
4596 int count_generic = generic_array_methods (class);
4597 class->method.count += class->interface_count * count_generic;
4601 mono_class_setup_supertypes (class);
4604 initialize_object_slots (class);
4607 * Initialize the rest of the data without creating a generic vtable if possible.
4608 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
4609 * also avoid computing a generic vtable.
4611 if (has_cached_info) {
4613 class->vtable_size = cached_info.vtable_size;
4614 class->has_finalize = cached_info.has_finalize;
4615 class->ghcimpl = cached_info.ghcimpl;
4616 class->has_cctor = cached_info.has_cctor;
4617 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
4618 static int szarray_vtable_size = 0;
4621 if (!szarray_vtable_size) {
4622 mono_class_setup_vtable (class);
4623 szarray_vtable_size = class->vtable_size;
4625 class->vtable_size = szarray_vtable_size;
4627 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
4628 MonoClass *gklass = class->generic_class->container_class;
4630 /* Generic instance case */
4631 class->ghcimpl = gklass->ghcimpl;
4632 class->has_finalize = gklass->has_finalize;
4633 class->has_cctor = gklass->has_cctor;
4635 mono_class_setup_vtable (gklass);
4636 if (gklass->exception_type) {
4637 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4641 class->vtable_size = gklass->vtable_size;
4645 /* ghcimpl is not currently used
4647 if (class->parent) {
4648 MonoMethod *cmethod = class->vtable [ghc_slot];
4649 if (cmethod->is_inflated)
4650 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4651 if (cmethod == default_ghc) {
4657 /* Interfaces and valuetypes are not supposed to have finalizers */
4658 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
4659 MonoMethod *cmethod = NULL;
4661 if (class->parent && class->parent->has_finalize) {
4662 class->has_finalize = 1;
4664 if (class->type_token) {
4665 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
4666 } else if (class->parent) {
4667 /* FIXME: Optimize this */
4668 mono_class_setup_vtable (class);
4669 if (class->exception_type || mono_loader_get_last_error ())
4671 cmethod = class->vtable [finalize_slot];
4675 /* Check that this is really the finalizer method */
4676 mono_class_setup_vtable (class);
4677 if (class->exception_type || mono_loader_get_last_error ())
4680 g_assert (class->vtable_size > finalize_slot);
4682 class->has_finalize = 0;
4683 if (class->parent) {
4684 cmethod = class->vtable [finalize_slot];
4686 if (cmethod->is_inflated)
4687 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4688 if (cmethod != default_finalize) {
4689 class->has_finalize = 1;
4696 /* C# doesn't allow interfaces to have cctors */
4697 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4698 MonoMethod *cmethod = NULL;
4700 if (class->type_token) {
4701 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4702 /* The find_method function ignores the 'flags' argument */
4703 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4704 class->has_cctor = 1;
4706 mono_class_setup_methods (class);
4707 if (class->exception_type)
4710 for (i = 0; i < class->method.count; ++i) {
4711 MonoMethod *method = class->methods [i];
4712 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4713 (strcmp (".cctor", method->name) == 0)) {
4714 class->has_cctor = 1;
4722 if (class->parent) {
4723 /* This will compute class->parent->vtable_size for some classes */
4724 mono_class_init (class->parent);
4725 if (class->parent->exception_type) {
4726 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4729 if (mono_loader_get_last_error ())
4731 if (!class->parent->vtable_size) {
4732 /* FIXME: Get rid of this somehow */
4733 mono_class_setup_vtable (class->parent);
4734 if (class->parent->exception_type) {
4735 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4738 if (mono_loader_get_last_error ())
4741 setup_interface_offsets (class, class->parent->vtable_size);
4743 setup_interface_offsets (class, 0);
4746 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4747 mono_security_core_clr_check_inheritance (class);
4749 if (mono_loader_get_last_error ()) {
4750 if (class->exception_type == MONO_EXCEPTION_NONE) {
4751 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4753 mono_loader_clear_error ();
4759 /* Because of the double-checking locking pattern */
4760 mono_memory_barrier ();
4762 class->init_pending = 0;
4764 mono_loader_unlock ();
4766 if (mono_debugger_class_init_func)
4767 mono_debugger_class_init_func (class);
4769 return class->exception_type == MONO_EXCEPTION_NONE;
4773 mono_is_corlib_image (MonoImage *image)
4775 /* FIXME: allow the dynamic case for our compilers and with full trust */
4777 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
4779 return image == mono_defaults.corlib;
4783 * LOCKING: this assumes the loader lock is held
4786 mono_class_setup_mono_type (MonoClass *class)
4788 const char *name = class->name;
4789 const char *nspace = class->name_space;
4790 gboolean is_corlib = mono_is_corlib_image (class->image);
4792 class->this_arg.byref = 1;
4793 class->this_arg.data.klass = class;
4794 class->this_arg.type = MONO_TYPE_CLASS;
4795 class->byval_arg.data.klass = class;
4796 class->byval_arg.type = MONO_TYPE_CLASS;
4798 if (is_corlib && !strcmp (nspace, "System")) {
4799 if (!strcmp (name, "ValueType")) {
4801 * do not set the valuetype bit for System.ValueType.
4802 * class->valuetype = 1;
4804 class->blittable = TRUE;
4805 } else if (!strcmp (name, "Enum")) {
4807 * do not set the valuetype bit for System.Enum.
4808 * class->valuetype = 1;
4810 class->valuetype = 0;
4811 class->enumtype = 0;
4812 } else if (!strcmp (name, "Object")) {
4813 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4814 } else if (!strcmp (name, "String")) {
4815 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4816 } else if (!strcmp (name, "TypedReference")) {
4817 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4821 if (class->valuetype) {
4822 int t = MONO_TYPE_VALUETYPE;
4824 if (is_corlib && !strcmp (nspace, "System")) {
4827 if (!strcmp (name, "Boolean")) {
4828 t = MONO_TYPE_BOOLEAN;
4829 } else if (!strcmp(name, "Byte")) {
4831 class->blittable = TRUE;
4835 if (!strcmp (name, "Char")) {
4840 if (!strcmp (name, "Double")) {
4842 class->blittable = TRUE;
4846 if (!strcmp (name, "Int32")) {
4848 class->blittable = TRUE;
4849 } else if (!strcmp(name, "Int16")) {
4851 class->blittable = TRUE;
4852 } else if (!strcmp(name, "Int64")) {
4854 class->blittable = TRUE;
4855 } else if (!strcmp(name, "IntPtr")) {
4857 class->blittable = TRUE;
4861 if (!strcmp (name, "Single")) {
4863 class->blittable = TRUE;
4864 } else if (!strcmp(name, "SByte")) {
4866 class->blittable = TRUE;
4870 if (!strcmp (name, "UInt32")) {
4872 class->blittable = TRUE;
4873 } else if (!strcmp(name, "UInt16")) {
4875 class->blittable = TRUE;
4876 } else if (!strcmp(name, "UInt64")) {
4878 class->blittable = TRUE;
4879 } else if (!strcmp(name, "UIntPtr")) {
4881 class->blittable = TRUE;
4885 if (!strcmp (name, "TypedReference")) {
4886 t = MONO_TYPE_TYPEDBYREF;
4887 class->blittable = TRUE;
4891 if (!strcmp (name, "Void")) {
4899 class->this_arg.type = class->byval_arg.type = t;
4902 if (MONO_CLASS_IS_INTERFACE (class))
4903 class->interface_id = mono_get_unique_iid (class);
4908 * COM initialization (using mono_init_com_types) is delayed until needed.
4909 * However when a [ComImport] attribute is present on a type it will trigger
4910 * the initialization. This is not a problem unless the BCL being executed
4911 * lacks the types that COM depends on (e.g. Variant on Silverlight).
4914 init_com_from_comimport (MonoClass *class)
4916 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
4917 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)) {
4918 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
4919 if (!mono_security_core_clr_determine_platform_image (class->image)) {
4920 /* but it can not be made available for application (i.e. user code) since all COM calls
4921 * are considered native calls. In this case we fail with a TypeLoadException (just like
4922 * Silverlight 2 does */
4923 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4927 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
4928 mono_init_com_types ();
4932 * LOCKING: this assumes the loader lock is held
4935 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4937 gboolean system_namespace;
4938 gboolean is_corlib = mono_is_corlib_image (class->image);
4940 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4942 /* if root of the hierarchy */
4943 if (system_namespace && !strcmp (class->name, "Object")) {
4944 class->parent = NULL;
4945 class->instance_size = sizeof (MonoObject);
4948 if (!strcmp (class->name, "<Module>")) {
4949 class->parent = NULL;
4950 class->instance_size = 0;
4954 if (!MONO_CLASS_IS_INTERFACE (class)) {
4955 /* Imported COM Objects always derive from __ComObject. */
4956 if (MONO_CLASS_IS_IMPORT (class)) {
4957 init_com_from_comimport (class);
4958 if (parent == mono_defaults.object_class)
4959 parent = mono_defaults.com_object_class;
4962 /* set the parent to something useful and safe, but mark the type as broken */
4963 parent = mono_defaults.object_class;
4964 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4967 class->parent = parent;
4969 if (parent->generic_class && !parent->name) {
4971 * If the parent is a generic instance, we may get
4972 * called before it is fully initialized, especially
4973 * before it has its name.
4978 class->marshalbyref = parent->marshalbyref;
4979 class->contextbound = parent->contextbound;
4980 class->delegate = parent->delegate;
4981 if (MONO_CLASS_IS_IMPORT (class))
4982 class->is_com_object = 1;
4984 class->is_com_object = parent->is_com_object;
4986 if (system_namespace) {
4987 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4988 class->marshalbyref = 1;
4990 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4991 class->contextbound = 1;
4993 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4994 class->delegate = 1;
4997 if (class->parent->enumtype || (mono_is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4998 (strcmp (class->parent->name_space, "System") == 0)))
4999 class->valuetype = 1;
5000 if (mono_is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
5001 class->valuetype = class->enumtype = 1;
5003 /*class->enumtype = class->parent->enumtype; */
5004 mono_class_setup_supertypes (class);
5006 /* initialize com types if COM interfaces are present */
5007 if (MONO_CLASS_IS_IMPORT (class))
5008 init_com_from_comimport (class);
5009 class->parent = NULL;
5015 * mono_class_setup_supertypes:
5018 * Build the data structure needed to make fast type checks work.
5019 * This currently sets two fields in @class:
5020 * - idepth: distance between @class and System.Object in the type
5022 * - supertypes: array of classes: each element has a class in the hierarchy
5023 * starting from @class up to System.Object
5025 * LOCKING: this assumes the loader lock is held
5028 mono_class_setup_supertypes (MonoClass *class)
5032 if (class->supertypes)
5035 if (class->parent && !class->parent->supertypes)
5036 mono_class_setup_supertypes (class->parent);
5038 class->idepth = class->parent->idepth + 1;
5042 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
5043 class->supertypes = mono_class_alloc0 (class, sizeof (MonoClass *) * ms);
5045 if (class->parent) {
5046 class->supertypes [class->idepth - 1] = class;
5047 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
5049 class->supertypes [0] = class;
5054 * mono_class_create_from_typedef:
5055 * @image: image where the token is valid
5056 * @type_token: typedef token
5058 * Create the MonoClass* representing the specified type token.
5059 * @type_token must be a TypeDef token.
5061 * FIXME: don't return NULL on failure, just the the caller figure it out.
5064 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
5066 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5067 MonoClass *class, *parent = NULL;
5068 guint32 cols [MONO_TYPEDEF_SIZE];
5069 guint32 cols_next [MONO_TYPEDEF_SIZE];
5070 guint tidx = mono_metadata_token_index (type_token);
5071 MonoGenericContext *context = NULL;
5072 const char *name, *nspace;
5074 MonoClass **interfaces;
5075 guint32 field_last, method_last;
5076 guint32 nesting_tokeen;
5078 if (mono_metadata_token_table (type_token) != MONO_TABLE_TYPEDEF || tidx > tt->rows)
5081 mono_loader_lock ();
5083 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
5084 mono_loader_unlock ();
5085 return class->exception_type ? NULL : class;
5088 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5090 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5091 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5093 class = mono_image_alloc0 (image, sizeof (MonoClass));
5096 class->name_space = nspace;
5098 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5100 class->image = image;
5101 class->type_token = type_token;
5102 class->flags = cols [MONO_TYPEDEF_FLAGS];
5104 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
5106 classes_size += sizeof (MonoClass);
5109 * Check whether we're a generic type definition.
5111 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
5112 if (class->generic_container) {
5113 class->is_generic = 1;
5114 class->generic_container->owner.klass = class;
5115 context = &class->generic_container->context;
5118 if (cols [MONO_TYPEDEF_EXTENDS]) {
5120 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
5122 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
5123 /*WARNING: this must satisfy mono_metadata_type_hash*/
5124 class->this_arg.byref = 1;
5125 class->this_arg.data.klass = class;
5126 class->this_arg.type = MONO_TYPE_CLASS;
5127 class->byval_arg.data.klass = class;
5128 class->byval_arg.type = MONO_TYPE_CLASS;
5130 parent = mono_class_get_full (image, parent_token, context);
5132 if (parent == NULL){
5133 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load parent type"));
5134 mono_loader_unlock ();
5135 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5139 for (tmp = parent; tmp; tmp = tmp->parent) {
5141 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cycle found while resolving parent"));
5142 mono_loader_unlock ();
5143 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5146 if (class->generic_container && tmp->generic_class && tmp->generic_class->container_class == class) {
5147 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Parent extends generic instance of this type"));
5148 mono_loader_unlock ();
5149 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5155 mono_class_setup_parent (class, parent);
5157 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5158 mono_class_setup_mono_type (class);
5161 * This might access class->byval_arg for recursion generated by generic constraints,
5162 * so it has to come after setup_mono_type ().
5164 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token))) {
5165 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
5166 if (!class->nested_in) {
5167 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load nestedin type"));
5168 mono_loader_unlock ();
5169 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5174 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
5178 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
5182 class->cast_class = class->element_class = class;
5184 if (!class->enumtype) {
5185 if (!mono_metadata_interfaces_from_typedef_full (
5186 image, type_token, &interfaces, &icount, FALSE, context)){
5187 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load interfaces"));
5188 mono_loader_unlock ();
5189 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5193 class->interfaces = interfaces;
5194 class->interface_count = icount;
5195 class->interfaces_inited = 1;
5198 /*g_print ("Load class %s\n", name);*/
5201 * Compute the field and method lists
5203 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
5204 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
5206 if (tt->rows > tidx){
5207 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
5208 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
5209 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
5211 field_last = image->tables [MONO_TABLE_FIELD].rows;
5212 method_last = image->tables [MONO_TABLE_METHOD].rows;
5215 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
5216 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
5217 class->field.count = field_last - class->field.first;
5219 class->field.count = 0;
5221 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
5222 class->method.count = method_last - class->method.first;
5224 class->method.count = 0;
5226 /* reserve space to store vector pointer in arrays */
5227 if (mono_is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
5228 class->instance_size += 2 * sizeof (gpointer);
5229 g_assert (class->field.count == 0);
5232 if (class->enumtype) {
5233 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
5234 if (!enum_basetype) {
5235 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5236 mono_loader_unlock ();
5237 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5240 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
5244 * If we're a generic type definition, load the constraints.
5245 * We must do this after the class has been constructed to make certain recursive scenarios
5248 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
5249 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
5250 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
5251 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
5252 g_free (class_name);
5253 mono_loader_unlock ();
5254 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5258 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
5259 if (!strncmp (name, "Vector", 6))
5260 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");
5263 mono_loader_unlock ();
5265 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5270 /** is klass Nullable<T>? */
5272 mono_class_is_nullable (MonoClass *klass)
5274 return klass->generic_class != NULL &&
5275 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
5279 /** if klass is T? return T */
5281 mono_class_get_nullable_param (MonoClass *klass)
5283 g_assert (mono_class_is_nullable (klass));
5284 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
5288 * Create the `MonoClass' for an instantiation of a generic type.
5289 * We only do this if we actually need it.
5292 mono_generic_class_get_class (MonoGenericClass *gclass)
5294 MonoClass *klass, *gklass;
5296 mono_loader_lock ();
5297 if (gclass->cached_class) {
5298 mono_loader_unlock ();
5299 return gclass->cached_class;
5302 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
5303 klass = gclass->cached_class;
5305 gklass = gclass->container_class;
5307 if (gklass->nested_in) {
5309 * FIXME: the nested type context should include everything the
5310 * nesting context should have, but it may also have additional
5311 * generic parameters...
5313 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
5314 mono_generic_class_get_context (gclass));
5317 klass->name = gklass->name;
5318 klass->name_space = gklass->name_space;
5320 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5322 klass->image = gklass->image;
5323 klass->flags = gklass->flags;
5324 klass->type_token = gklass->type_token;
5325 klass->field.count = gklass->field.count;
5327 klass->is_inflated = 1;
5328 klass->generic_class = gclass;
5330 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
5331 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
5332 klass->this_arg.byref = TRUE;
5333 klass->enumtype = gklass->enumtype;
5334 klass->valuetype = gklass->valuetype;
5336 klass->cast_class = klass->element_class = klass;
5338 if (mono_class_is_nullable (klass))
5339 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
5342 * We're not interested in the nested classes of a generic instance.
5343 * We use the generic type definition to look for nested classes.
5346 if (gklass->parent) {
5347 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
5351 mono_class_setup_parent (klass, klass->parent);
5353 if (klass->enumtype) {
5354 klass->cast_class = gklass->cast_class;
5355 klass->element_class = gklass->element_class;
5358 if (gclass->is_dynamic) {
5361 mono_class_setup_supertypes (klass);
5363 if (klass->enumtype) {
5365 * For enums, gklass->fields might not been set, but instance_size etc. is
5366 * already set in mono_reflection_create_internal_class (). For non-enums,
5367 * these will be computed normally in mono_class_layout_fields ().
5369 klass->instance_size = gklass->instance_size;
5370 klass->sizes.class_size = gklass->sizes.class_size;
5371 klass->size_inited = 1;
5375 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5377 inflated_classes ++;
5378 inflated_classes_size += sizeof (MonoClass);
5380 mono_loader_unlock ();
5386 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
5388 MonoClass *klass, **ptr;
5390 MonoGenericContainer *container = mono_generic_param_owner (param);
5394 image = mono_defaults.corlib;
5396 klass = mono_image_alloc0 (image, sizeof (MonoClass));
5397 classes_size += sizeof (MonoClass);
5400 klass->name = pinfo->name;
5402 int n = mono_generic_param_num (param);
5403 klass->name = mono_image_alloc0 (image, 16);
5404 sprintf ((char*)klass->name, "%d", n);
5409 MonoMethod *omethod = container->owner.method;
5410 klass->name_space = (omethod && omethod->klass) ? omethod->klass->name_space : "";
5412 MonoClass *oklass = container->owner.klass;
5413 klass->name_space = oklass ? oklass->name_space : "";
5416 klass->name_space = "";
5419 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5423 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
5427 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
5428 klass->parent = pinfo->constraints [0];
5430 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
5431 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
5433 klass->parent = mono_defaults.object_class;
5436 if (count - pos > 0) {
5437 klass->interface_count = count - pos;
5438 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
5439 klass->interfaces_inited = TRUE;
5440 for (i = pos; i < count; i++)
5441 klass->interfaces [i - pos] = pinfo->constraints [i];
5444 klass->image = image;
5446 klass->inited = TRUE;
5447 klass->cast_class = klass->element_class = klass;
5448 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
5450 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5451 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
5452 klass->this_arg.byref = TRUE;
5454 /* We don't use type_token for VAR since only classes can use it (not arrays, pointer, VARs, etc) */
5455 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
5457 /*Init these fields to sane values*/
5458 klass->min_align = 1;
5459 klass->instance_size = sizeof (gpointer);
5460 klass->size_inited = 1;
5462 mono_class_setup_supertypes (klass);
5464 if (count - pos > 0) {
5465 mono_class_setup_vtable (klass->parent);
5466 g_assert (!klass->parent->exception_type);
5467 setup_interface_offsets (klass, klass->parent->vtable_size);
5473 #define FAST_CACHE_SIZE 16
5474 static MonoClass *var_cache_fast [FAST_CACHE_SIZE];
5475 static MonoClass *mvar_cache_fast [FAST_CACHE_SIZE];
5476 static GHashTable *var_cache_slow;
5477 static GHashTable *mvar_cache_slow;
5480 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
5482 int n = mono_generic_param_num (param);
5485 if (n < FAST_CACHE_SIZE)
5486 return (is_mvar ? mvar_cache_fast : var_cache_fast) [n];
5487 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5488 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
5492 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
5494 int n = mono_generic_param_num (param);
5497 if (n < FAST_CACHE_SIZE) {
5498 (is_mvar ? mvar_cache_fast : var_cache_fast) [n] = klass;
5501 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5503 ht = g_hash_table_new (NULL, NULL);
5505 mvar_cache_slow = ht;
5507 var_cache_slow = ht;
5510 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
5514 * LOCKING: Acquires the loader lock.
5517 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
5519 MonoGenericContainer *container = mono_generic_param_owner (param);
5520 MonoGenericParamInfo *pinfo;
5523 mono_loader_lock ();
5526 pinfo = mono_generic_param_info (param);
5527 if (pinfo->pklass) {
5528 mono_loader_unlock ();
5529 return pinfo->pklass;
5535 klass = get_anon_gparam_class (param, is_mvar);
5537 mono_loader_unlock ();
5542 if (!image && container) {
5544 MonoMethod *method = container->owner.method;
5545 image = (method && method->klass) ? method->klass->image : NULL;
5547 MonoClass *klass = container->owner.klass;
5548 // FIXME: 'klass' should not be null
5549 // But, monodis creates GenericContainers without associating a owner to it
5550 image = klass ? klass->image : NULL;
5554 klass = make_generic_param_class (param, image, is_mvar, pinfo);
5556 mono_memory_barrier ();
5559 pinfo->pklass = klass;
5561 set_anon_gparam_class (param, is_mvar, klass);
5563 mono_loader_unlock ();
5565 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5566 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5572 mono_ptr_class_get (MonoType *type)
5575 MonoClass *el_class;
5579 el_class = mono_class_from_mono_type (type);
5580 image = el_class->image;
5582 mono_loader_lock ();
5584 if (!image->ptr_cache)
5585 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5587 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
5588 mono_loader_unlock ();
5591 result = mono_image_alloc0 (image, sizeof (MonoClass));
5593 classes_size += sizeof (MonoClass);
5595 result->parent = NULL; /* no parent for PTR types */
5596 result->name_space = el_class->name_space;
5597 name = g_strdup_printf ("%s*", el_class->name);
5598 result->name = mono_image_strdup (image, name);
5601 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5603 result->image = el_class->image;
5604 result->inited = TRUE;
5605 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5606 /* Can pointers get boxed? */
5607 result->instance_size = sizeof (gpointer);
5608 result->cast_class = result->element_class = el_class;
5609 result->blittable = TRUE;
5611 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
5612 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
5613 result->this_arg.byref = TRUE;
5615 mono_class_setup_supertypes (result);
5617 g_hash_table_insert (image->ptr_cache, el_class, result);
5619 mono_loader_unlock ();
5621 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5627 mono_fnptr_class_get (MonoMethodSignature *sig)
5630 static GHashTable *ptr_hash = NULL;
5632 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5634 mono_loader_lock ();
5637 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5639 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
5640 mono_loader_unlock ();
5643 result = g_new0 (MonoClass, 1);
5645 result->parent = NULL; /* no parent for PTR types */
5646 result->name_space = "System";
5647 result->name = "MonoFNPtrFakeClass";
5649 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5651 result->image = mono_defaults.corlib; /* need to fix... */
5652 result->inited = TRUE;
5653 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5654 /* Can pointers get boxed? */
5655 result->instance_size = sizeof (gpointer);
5656 result->cast_class = result->element_class = result;
5657 result->blittable = TRUE;
5659 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
5660 result->this_arg.data.method = result->byval_arg.data.method = sig;
5661 result->this_arg.byref = TRUE;
5662 result->blittable = TRUE;
5664 mono_class_setup_supertypes (result);
5666 g_hash_table_insert (ptr_hash, sig, result);
5668 mono_loader_unlock ();
5670 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5676 mono_class_from_mono_type (MonoType *type)
5678 switch (type->type) {
5679 case MONO_TYPE_OBJECT:
5680 return type->data.klass? type->data.klass: mono_defaults.object_class;
5681 case MONO_TYPE_VOID:
5682 return type->data.klass? type->data.klass: mono_defaults.void_class;
5683 case MONO_TYPE_BOOLEAN:
5684 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
5685 case MONO_TYPE_CHAR:
5686 return type->data.klass? type->data.klass: mono_defaults.char_class;
5688 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
5690 return type->data.klass? type->data.klass: mono_defaults.byte_class;
5692 return type->data.klass? type->data.klass: mono_defaults.int16_class;
5694 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
5696 return type->data.klass? type->data.klass: mono_defaults.int32_class;
5698 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
5700 return type->data.klass? type->data.klass: mono_defaults.int_class;
5702 return type->data.klass? type->data.klass: mono_defaults.uint_class;
5704 return type->data.klass? type->data.klass: mono_defaults.int64_class;
5706 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
5708 return type->data.klass? type->data.klass: mono_defaults.single_class;
5710 return type->data.klass? type->data.klass: mono_defaults.double_class;
5711 case MONO_TYPE_STRING:
5712 return type->data.klass? type->data.klass: mono_defaults.string_class;
5713 case MONO_TYPE_TYPEDBYREF:
5714 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
5715 case MONO_TYPE_ARRAY:
5716 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
5718 return mono_ptr_class_get (type->data.type);
5719 case MONO_TYPE_FNPTR:
5720 return mono_fnptr_class_get (type->data.method);
5721 case MONO_TYPE_SZARRAY:
5722 return mono_array_class_get (type->data.klass, 1);
5723 case MONO_TYPE_CLASS:
5724 case MONO_TYPE_VALUETYPE:
5725 return type->data.klass;
5726 case MONO_TYPE_GENERICINST:
5727 return mono_generic_class_get_class (type->data.generic_class);
5729 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
5730 case MONO_TYPE_MVAR:
5731 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
5733 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
5734 g_assert_not_reached ();
5741 * mono_type_retrieve_from_typespec
5742 * @image: context where the image is created
5743 * @type_spec: typespec token
5744 * @context: the generic context used to evaluate generic instantiations in
5747 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate, MonoError *error)
5749 MonoType *t = mono_type_create_from_typespec (image, type_spec);
5751 mono_error_init (error);
5752 *did_inflate = FALSE;
5755 char *name = mono_class_name_from_token (image, type_spec);
5756 char *assembly = mono_assembly_name_from_token (image, type_spec);
5757 mono_error_set_type_load_name (error, name, assembly, "Could not resolve typespec token %08x", type_spec);
5761 if (context && (context->class_inst || context->method_inst)) {
5762 MonoType *inflated = inflate_generic_type (NULL, t, context, error);
5764 if (!mono_error_ok (error))
5769 *did_inflate = TRUE;
5776 * mono_class_create_from_typespec
5777 * @image: context where the image is created
5778 * @type_spec: typespec token
5779 * @context: the generic context used to evaluate generic instantiations in
5782 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, MonoError *error)
5785 gboolean inflated = FALSE;
5786 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated, error);
5787 if (!mono_error_ok (error))
5789 ret = mono_class_from_mono_type (t);
5791 mono_metadata_free_type (t);
5796 * mono_bounded_array_class_get:
5797 * @element_class: element class
5798 * @rank: the dimension of the array class
5799 * @bounded: whenever the array has non-zero bounds
5801 * Returns: a class object describing the array with element type @element_type and
5805 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
5809 MonoClass *parent = NULL;
5810 GSList *list, *rootlist = NULL;
5813 gboolean corlib_type = FALSE;
5815 g_assert (rank <= 255);
5818 /* bounded only matters for one-dimensional arrays */
5821 image = eclass->image;
5823 if (rank == 1 && !bounded) {
5825 * This case is very frequent not just during compilation because of calls
5826 * from mono_class_from_mono_type (), mono_array_new (),
5827 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
5829 EnterCriticalSection (&image->szarray_cache_lock);
5830 if (!image->szarray_cache)
5831 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5832 class = g_hash_table_lookup (image->szarray_cache, eclass);
5833 LeaveCriticalSection (&image->szarray_cache_lock);
5837 mono_loader_lock ();
5839 mono_loader_lock ();
5841 if (!image->array_cache)
5842 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5844 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
5845 for (; list; list = list->next) {
5847 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
5848 mono_loader_unlock ();
5855 /* for the building corlib use System.Array from it */
5856 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
5857 parent = mono_class_from_name (image, "System", "Array");
5860 parent = mono_defaults.array_class;
5861 if (!parent->inited)
5862 mono_class_init (parent);
5865 class = mono_image_alloc0 (image, sizeof (MonoClass));
5867 class->image = image;
5868 class->name_space = eclass->name_space;
5869 nsize = strlen (eclass->name);
5870 name = g_malloc (nsize + 2 + rank + 1);
5871 memcpy (name, eclass->name, nsize);
5874 memset (name + nsize + 1, ',', rank - 1);
5876 name [nsize + rank] = '*';
5877 name [nsize + rank + bounded] = ']';
5878 name [nsize + rank + bounded + 1] = 0;
5879 class->name = mono_image_strdup (image, name);
5882 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5884 classes_size += sizeof (MonoClass);
5886 class->type_token = 0;
5887 /* all arrays are marked serializable and sealed, bug #42779 */
5888 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED | TYPE_ATTRIBUTE_PUBLIC;
5889 class->parent = parent;
5890 class->instance_size = mono_class_instance_size (class->parent);
5892 if (eclass->byval_arg.type == MONO_TYPE_TYPEDBYREF || eclass->byval_arg.type == MONO_TYPE_VOID) {
5893 /*Arrays of those two types are invalid.*/
5894 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5895 } else if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
5896 if (!eclass->ref_info_handle || eclass->wastypebuilder) {
5897 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
5898 g_assert (eclass->ref_info_handle && !eclass->wastypebuilder);
5900 /* element_size -1 is ok as this is not an instantitable type*/
5901 class->sizes.element_size = -1;
5903 class->sizes.element_size = mono_class_array_element_size (eclass);
5905 mono_class_setup_supertypes (class);
5907 if (eclass->generic_class)
5908 mono_class_init (eclass);
5909 if (!eclass->size_inited)
5910 mono_class_setup_fields (eclass);
5911 if (eclass->exception_type) /*FIXME we fail the array type, but we have to let other fields be set.*/
5912 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5914 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
5918 if (eclass->enumtype)
5919 class->cast_class = eclass->element_class;
5921 class->cast_class = eclass;
5923 switch (class->cast_class->byval_arg.type) {
5925 class->cast_class = mono_defaults.byte_class;
5928 class->cast_class = mono_defaults.int16_class;
5931 #if SIZEOF_VOID_P == 4
5935 class->cast_class = mono_defaults.int32_class;
5938 #if SIZEOF_VOID_P == 8
5942 class->cast_class = mono_defaults.int64_class;
5946 class->element_class = eclass;
5948 if ((rank > 1) || bounded) {
5949 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
5950 class->byval_arg.type = MONO_TYPE_ARRAY;
5951 class->byval_arg.data.array = at;
5952 at->eklass = eclass;
5954 /* FIXME: complete.... */
5956 class->byval_arg.type = MONO_TYPE_SZARRAY;
5957 class->byval_arg.data.klass = eclass;
5959 class->this_arg = class->byval_arg;
5960 class->this_arg.byref = 1;
5965 class->generic_container = eclass->generic_container;
5967 if (rank == 1 && !bounded) {
5968 MonoClass *prev_class;
5970 EnterCriticalSection (&image->szarray_cache_lock);
5971 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
5973 /* Someone got in before us */
5976 g_hash_table_insert (image->szarray_cache, eclass, class);
5977 LeaveCriticalSection (&image->szarray_cache_lock);
5979 list = g_slist_append (rootlist, class);
5980 g_hash_table_insert (image->array_cache, eclass, list);
5983 mono_loader_unlock ();
5985 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5991 * mono_array_class_get:
5992 * @element_class: element class
5993 * @rank: the dimension of the array class
5995 * Returns: a class object describing the array with element type @element_type and
5999 mono_array_class_get (MonoClass *eclass, guint32 rank)
6001 return mono_bounded_array_class_get (eclass, rank, FALSE);
6005 * mono_class_instance_size:
6008 * Returns: the size of an object instance
6011 mono_class_instance_size (MonoClass *klass)
6013 if (!klass->size_inited)
6014 mono_class_init (klass);
6016 return klass->instance_size;
6020 * mono_class_min_align:
6023 * Returns: minimm alignment requirements
6026 mono_class_min_align (MonoClass *klass)
6028 if (!klass->size_inited)
6029 mono_class_init (klass);
6031 return klass->min_align;
6035 * mono_class_value_size:
6038 * This function is used for value types, and return the
6039 * space and the alignment to store that kind of value object.
6041 * Returns: the size of a value of kind @klass
6044 mono_class_value_size (MonoClass *klass, guint32 *align)
6048 /* fixme: check disable, because we still have external revereces to
6049 * mscorlib and Dummy Objects
6051 /*g_assert (klass->valuetype);*/
6053 size = mono_class_instance_size (klass) - sizeof (MonoObject);
6056 *align = klass->min_align;
6062 * mono_class_data_size:
6065 * Returns: the size of the static class data
6068 mono_class_data_size (MonoClass *klass)
6071 mono_class_init (klass);
6073 /* in arrays, sizes.class_size is unioned with element_size
6074 * and arrays have no static fields
6078 return klass->sizes.class_size;
6082 * Auxiliary routine to mono_class_get_field
6084 * Takes a field index instead of a field token.
6086 static MonoClassField *
6087 mono_class_get_field_idx (MonoClass *class, int idx)
6089 mono_class_setup_fields_locking (class);
6090 if (class->exception_type)
6094 if (class->image->uncompressed_metadata) {
6096 * class->field.first points to the FieldPtr table, while idx points into the
6097 * Field table, so we have to do a search.
6099 /*FIXME this is broken for types with multiple fields with the same name.*/
6100 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
6103 for (i = 0; i < class->field.count; ++i)
6104 if (mono_field_get_name (&class->fields [i]) == name)
6105 return &class->fields [i];
6106 g_assert_not_reached ();
6108 if (class->field.count) {
6109 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
6110 return &class->fields [idx - class->field.first];
6114 class = class->parent;
6120 * mono_class_get_field:
6121 * @class: the class to lookup the field.
6122 * @field_token: the field token
6124 * Returns: A MonoClassField representing the type and offset of
6125 * the field, or a NULL value if the field does not belong to this
6129 mono_class_get_field (MonoClass *class, guint32 field_token)
6131 int idx = mono_metadata_token_index (field_token);
6133 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
6135 return mono_class_get_field_idx (class, idx - 1);
6139 * mono_class_get_field_from_name:
6140 * @klass: the class to lookup the field.
6141 * @name: the field name
6143 * Search the class @klass and it's parents for a field with the name @name.
6145 * Returns: the MonoClassField pointer of the named field or NULL
6148 mono_class_get_field_from_name (MonoClass *klass, const char *name)
6150 return mono_class_get_field_from_name_full (klass, name, NULL);
6154 * mono_class_get_field_from_name_full:
6155 * @klass: the class to lookup the field.
6156 * @name: the field name
6157 * @type: the type of the fields. This optional.
6159 * Search the class @klass and it's parents for a field with the name @name and type @type.
6161 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
6162 * of its generic type definition.
6164 * Returns: the MonoClassField pointer of the named field or NULL
6167 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
6171 mono_class_setup_fields_locking (klass);
6172 if (klass->exception_type)
6176 for (i = 0; i < klass->field.count; ++i) {
6177 MonoClassField *field = &klass->fields [i];
6179 if (strcmp (name, mono_field_get_name (field)) != 0)
6183 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
6184 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
6189 klass = klass->parent;
6195 * mono_class_get_field_token:
6196 * @field: the field we need the token of
6198 * Get the token of a field. Note that the tokesn is only valid for the image
6199 * the field was loaded from. Don't use this function for fields in dynamic types.
6201 * Returns: the token representing the field in the image it was loaded from.
6204 mono_class_get_field_token (MonoClassField *field)
6206 MonoClass *klass = field->parent;
6209 mono_class_setup_fields_locking (klass);
6210 if (klass->exception_type)
6214 for (i = 0; i < klass->field.count; ++i) {
6215 if (&klass->fields [i] == field) {
6216 int idx = klass->field.first + i + 1;
6218 if (klass->image->uncompressed_metadata)
6219 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
6220 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
6223 klass = klass->parent;
6226 g_assert_not_reached ();
6231 mono_field_get_index (MonoClassField *field)
6233 int index = field - field->parent->fields;
6235 g_assert (index >= 0 && index < field->parent->field.count);
6241 * mono_class_get_field_default_value:
6243 * Return the default value of the field as a pointer into the metadata blob.
6246 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
6249 guint32 constant_cols [MONO_CONSTANT_SIZE];
6251 MonoClass *klass = field->parent;
6253 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
6255 if (!klass->ext || !klass->ext->field_def_values) {
6256 mono_loader_lock ();
6257 mono_class_alloc_ext (klass);
6258 if (!klass->ext->field_def_values)
6259 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
6260 mono_loader_unlock ();
6263 field_index = mono_field_get_index (field);
6265 if (!klass->ext->field_def_values [field_index].data) {
6266 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
6268 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
6270 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6271 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
6272 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
6275 *def_type = klass->ext->field_def_values [field_index].def_type;
6276 return klass->ext->field_def_values [field_index].data;
6280 mono_property_get_index (MonoProperty *prop)
6282 int index = prop - prop->parent->ext->properties;
6284 g_assert (index >= 0 && index < prop->parent->ext->property.count);
6290 * mono_class_get_property_default_value:
6292 * Return the default value of the field as a pointer into the metadata blob.
6295 mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type)
6298 guint32 constant_cols [MONO_CONSTANT_SIZE];
6299 MonoClass *klass = property->parent;
6301 g_assert (property->attrs & PROPERTY_ATTRIBUTE_HAS_DEFAULT);
6303 * We don't cache here because it is not used by C# so it's quite rare, but
6304 * we still do the lookup in klass->ext because that is where the data
6305 * is stored for dynamic assemblies.
6308 if (klass->image->dynamic) {
6309 int prop_index = mono_property_get_index (property);
6310 if (klass->ext->prop_def_values && klass->ext->prop_def_values [prop_index].data) {
6311 *def_type = klass->ext->prop_def_values [prop_index].def_type;
6312 return klass->ext->prop_def_values [prop_index].data;
6316 cindex = mono_metadata_get_constant_index (klass->image, mono_class_get_property_token (property), 0);
6320 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6321 *def_type = constant_cols [MONO_CONSTANT_TYPE];
6322 return (gpointer)mono_metadata_blob_heap (klass->image, constant_cols [MONO_CONSTANT_VALUE]);
6326 mono_class_get_event_token (MonoEvent *event)
6328 MonoClass *klass = event->parent;
6333 for (i = 0; i < klass->ext->event.count; ++i) {
6334 if (&klass->ext->events [i] == event)
6335 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
6338 klass = klass->parent;
6341 g_assert_not_reached ();
6346 mono_class_get_property_from_name (MonoClass *klass, const char *name)
6350 gpointer iter = NULL;
6351 while ((p = mono_class_get_properties (klass, &iter))) {
6352 if (! strcmp (name, p->name))
6355 klass = klass->parent;
6361 mono_class_get_property_token (MonoProperty *prop)
6363 MonoClass *klass = prop->parent;
6367 gpointer iter = NULL;
6368 while ((p = mono_class_get_properties (klass, &iter))) {
6369 if (&klass->ext->properties [i] == prop)
6370 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
6374 klass = klass->parent;
6377 g_assert_not_reached ();
6382 mono_class_name_from_token (MonoImage *image, guint32 type_token)
6384 const char *name, *nspace;
6386 return g_strdup_printf ("DynamicType 0x%08x", type_token);
6388 switch (type_token & 0xff000000){
6389 case MONO_TOKEN_TYPE_DEF: {
6390 guint32 cols [MONO_TYPEDEF_SIZE];
6391 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
6392 guint tidx = mono_metadata_token_index (type_token);
6394 if (tidx > tt->rows)
6395 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6397 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
6398 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6399 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6400 if (strlen (nspace) == 0)
6401 return g_strdup_printf ("%s", name);
6403 return g_strdup_printf ("%s.%s", nspace, name);
6406 case MONO_TOKEN_TYPE_REF: {
6407 guint32 cols [MONO_TYPEREF_SIZE];
6408 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6409 guint tidx = mono_metadata_token_index (type_token);
6412 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6413 mono_metadata_decode_row (t, tidx-1, cols, MONO_TYPEREF_SIZE);
6414 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
6415 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
6416 if (strlen (nspace) == 0)
6417 return g_strdup_printf ("%s", name);
6419 return g_strdup_printf ("%s.%s", nspace, name);
6422 case MONO_TOKEN_TYPE_SPEC:
6423 return g_strdup_printf ("Typespec 0x%08x", type_token);
6425 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6430 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
6433 return g_strdup_printf ("DynamicAssembly %s", image->name);
6435 switch (type_token & 0xff000000){
6436 case MONO_TOKEN_TYPE_DEF:
6437 if (image->assembly)
6438 return mono_stringify_assembly_name (&image->assembly->aname);
6439 else if (image->assembly_name)
6440 return g_strdup (image->assembly_name);
6441 return g_strdup_printf ("%s", image->name ? image->name : "[Could not resolve assembly name");
6442 case MONO_TOKEN_TYPE_REF: {
6443 MonoAssemblyName aname;
6444 guint32 cols [MONO_TYPEREF_SIZE];
6445 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6446 guint32 idx = mono_metadata_token_index (type_token);
6449 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6451 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPEREF_SIZE);
6453 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
6454 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
6455 case MONO_RESOLTION_SCOPE_MODULE:
6457 return g_strdup ("");
6458 case MONO_RESOLTION_SCOPE_MODULEREF:
6460 return g_strdup ("");
6461 case MONO_RESOLTION_SCOPE_TYPEREF:
6463 return g_strdup ("");
6464 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
6465 mono_assembly_get_assemblyref (image, idx - 1, &aname);
6466 return mono_stringify_assembly_name (&aname);
6468 g_assert_not_reached ();
6472 case MONO_TOKEN_TYPE_SPEC:
6474 return g_strdup ("");
6476 g_assert_not_reached ();
6483 * mono_class_get_full:
6484 * @image: the image where the class resides
6485 * @type_token: the token for the class
6486 * @context: the generic context used to evaluate generic instantiations in
6488 * Returns: the MonoClass that represents @type_token in @image
6491 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6494 MonoClass *class = NULL;
6496 if (image->dynamic) {
6497 int table = mono_metadata_token_table (type_token);
6499 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
6500 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6503 return mono_lookup_dynamic_token (image, type_token, context);
6506 switch (type_token & 0xff000000){
6507 case MONO_TOKEN_TYPE_DEF:
6508 class = mono_class_create_from_typedef (image, type_token);
6510 case MONO_TOKEN_TYPE_REF:
6511 class = mono_class_from_typeref (image, type_token);
6513 case MONO_TOKEN_TYPE_SPEC:
6514 class = mono_class_create_from_typespec (image, type_token, context, &error);
6515 if (!mono_error_ok (&error)) {
6516 /*FIXME don't swallow the error message*/
6517 mono_error_cleanup (&error);
6521 g_warning ("unknown token type %x", type_token & 0xff000000);
6522 g_assert_not_reached ();
6526 char *name = mono_class_name_from_token (image, type_token);
6527 char *assembly = mono_assembly_name_from_token (image, type_token);
6528 mono_loader_set_error_type_load (name, assembly);
6538 * mono_type_get_full:
6539 * @image: the image where the type resides
6540 * @type_token: the token for the type
6541 * @context: the generic context used to evaluate generic instantiations in
6543 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6545 * Returns: the MonoType that represents @type_token in @image
6548 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6551 MonoType *type = NULL;
6552 gboolean inflated = FALSE;
6554 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6556 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
6558 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
6559 MonoClass *class = mono_class_get_full (image, type_token, context);
6560 return class ? mono_class_get_type (class) : NULL;
6563 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated, &error);
6565 if (!mono_error_ok (&error)) {
6566 /*FIXME don't swalloc the error message.*/
6567 char *name = mono_class_name_from_token (image, type_token);
6568 char *assembly = mono_assembly_name_from_token (image, type_token);
6570 g_warning ("Error loading type %s from %s due to %s", name, assembly, mono_error_get_message (&error));
6572 mono_error_cleanup (&error);
6573 mono_loader_set_error_type_load (name, assembly);
6578 MonoType *tmp = type;
6579 type = mono_class_get_type (mono_class_from_mono_type (type));
6580 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6581 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6582 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6584 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6586 if (type->type != tmp->type)
6589 mono_metadata_free_type (tmp);
6596 mono_class_get (MonoImage *image, guint32 type_token)
6598 return mono_class_get_full (image, type_token, NULL);
6602 * mono_image_init_name_cache:
6604 * Initializes the class name cache stored in image->name_cache.
6606 * LOCKING: Acquires the corresponding image lock.
6609 mono_image_init_name_cache (MonoImage *image)
6611 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6612 guint32 cols [MONO_TYPEDEF_SIZE];
6615 guint32 i, visib, nspace_index;
6616 GHashTable *name_cache2, *nspace_table;
6618 mono_image_lock (image);
6620 if (image->name_cache) {
6621 mono_image_unlock (image);
6625 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
6627 if (image->dynamic) {
6628 mono_image_unlock (image);
6632 /* Temporary hash table to avoid lookups in the nspace_table */
6633 name_cache2 = g_hash_table_new (NULL, NULL);
6635 for (i = 1; i <= t->rows; ++i) {
6636 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6637 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6639 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6640 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6642 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6644 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6645 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6647 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
6648 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6649 if (!nspace_table) {
6650 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6651 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6652 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6655 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
6658 /* Load type names from EXPORTEDTYPES table */
6660 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6661 guint32 cols [MONO_EXP_TYPE_SIZE];
6664 for (i = 0; i < t->rows; ++i) {
6665 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
6666 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
6667 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
6669 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
6670 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6671 if (!nspace_table) {
6672 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6673 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6674 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6677 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
6681 g_hash_table_destroy (name_cache2);
6682 mono_image_unlock (image);
6685 /*FIXME Only dynamic assemblies should allow this operation.*/
6687 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
6688 const char *name, guint32 index)
6690 GHashTable *nspace_table;
6691 GHashTable *name_cache;
6694 mono_image_lock (image);
6696 if (!image->name_cache)
6697 mono_image_init_name_cache (image);
6699 name_cache = image->name_cache;
6700 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
6701 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6702 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
6705 if ((old_index = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, (char*) name))))
6706 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index, image->name, nspace, name);
6708 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
6710 mono_image_unlock (image);
6719 find_nocase (gpointer key, gpointer value, gpointer user_data)
6721 char *name = (char*)key;
6722 FindUserData *data = (FindUserData*)user_data;
6724 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
6725 data->value = value;
6729 * mono_class_from_name_case:
6730 * @image: The MonoImage where the type is looked up in
6731 * @name_space: the type namespace
6732 * @name: the type short name.
6734 * Obtains a MonoClass with a given namespace and a given name which
6735 * is located in the given MonoImage. The namespace and name
6736 * lookups are case insensitive.
6739 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
6741 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6742 guint32 cols [MONO_TYPEDEF_SIZE];
6747 if (image->dynamic) {
6749 FindUserData user_data;
6751 mono_image_lock (image);
6753 if (!image->name_cache)
6754 mono_image_init_name_cache (image);
6756 user_data.key = name_space;
6757 user_data.value = NULL;
6758 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
6760 if (user_data.value) {
6761 GHashTable *nspace_table = (GHashTable*)user_data.value;
6763 user_data.key = name;
6764 user_data.value = NULL;
6766 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
6768 if (user_data.value)
6769 token = GPOINTER_TO_UINT (user_data.value);
6772 mono_image_unlock (image);
6775 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
6781 /* add a cache if needed */
6782 for (i = 1; i <= t->rows; ++i) {
6783 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6784 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6786 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6787 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6789 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6791 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6792 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6793 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
6794 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
6800 return_nested_in (MonoClass *class, char *nested)
6803 char *s = strchr (nested, '/');
6804 gpointer iter = NULL;
6811 while ((found = mono_class_get_nested_types (class, &iter))) {
6812 if (strcmp (found->name, nested) == 0) {
6814 return return_nested_in (found, s);
6822 search_modules (MonoImage *image, const char *name_space, const char *name)
6824 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
6825 MonoImage *file_image;
6830 * The EXPORTEDTYPES table only contains public types, so have to search the
6832 * Note: image->modules contains the contents of the MODULEREF table, while
6833 * the real module list is in the FILE table.
6835 for (i = 0; i < file_table->rows; i++) {
6836 guint32 cols [MONO_FILE_SIZE];
6837 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
6838 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
6841 file_image = mono_image_load_file_for_image (image, i + 1);
6843 class = mono_class_from_name (file_image, name_space, name);
6853 * mono_class_from_name:
6854 * @image: The MonoImage where the type is looked up in
6855 * @name_space: the type namespace
6856 * @name: the type short name.
6858 * Obtains a MonoClass with a given namespace and a given name which
6859 * is located in the given MonoImage.
6862 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
6864 GHashTable *nspace_table;
6865 MonoImage *loaded_image;
6872 if ((nested = strchr (name, '/'))) {
6873 int pos = nested - name;
6874 int len = strlen (name);
6877 memcpy (buf, name, len + 1);
6879 nested = buf + pos + 1;
6883 if (get_class_from_name) {
6884 gboolean res = get_class_from_name (image, name_space, name, &class);
6887 class = search_modules (image, name_space, name);
6889 return class ? return_nested_in (class, nested) : NULL;
6895 mono_image_lock (image);
6897 if (!image->name_cache)
6898 mono_image_init_name_cache (image);
6900 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
6903 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
6905 mono_image_unlock (image);
6907 if (!token && image->dynamic && image->modules) {
6908 /* Search modules as well */
6909 for (i = 0; i < image->module_count; ++i) {
6910 MonoImage *module = image->modules [i];
6912 class = mono_class_from_name (module, name_space, name);
6919 class = search_modules (image, name_space, name);
6927 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
6928 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6929 guint32 cols [MONO_EXP_TYPE_SIZE];
6932 idx = mono_metadata_token_index (token);
6934 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
6936 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
6937 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
6938 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
6941 class = mono_class_from_name (loaded_image, name_space, name);
6943 return return_nested_in (class, nested);
6945 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
6946 guint32 assembly_idx;
6948 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
6950 mono_assembly_load_reference (image, assembly_idx - 1);
6951 g_assert (image->references [assembly_idx - 1]);
6952 if (image->references [assembly_idx - 1] == (gpointer)-1)
6955 /* FIXME: Cycle detection */
6956 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
6958 g_error ("not yet implemented");
6962 token = MONO_TOKEN_TYPE_DEF | token;
6964 class = mono_class_get (image, token);
6966 return return_nested_in (class, nested);
6970 /*FIXME test for interfaces with variant generic arguments*/
6972 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
6973 gboolean check_interfaces)
6975 g_assert (klassc->idepth > 0);
6976 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
6977 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
6979 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
6982 for (i = 0; i < klass->interface_count; i ++) {
6983 MonoClass *ic = klass->interfaces [i];
6988 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
6993 * MS.NET thinks interfaces are a subclass of Object, so we think it as
6996 if (klassc == mono_defaults.object_class)
7003 mono_class_has_variant_generic_params (MonoClass *klass)
7006 MonoGenericContainer *container;
7008 if (!klass->generic_class)
7011 container = klass->generic_class->container_class->generic_container;
7013 for (i = 0; i < container->type_argc; ++i)
7014 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
7021 * @container the generic container from the GTD
7022 * @klass: the class to be assigned to
7023 * @oklass: the source class
7025 * Both klass and oklass must be instances of the same generic interface.
7026 * Return true if @klass can be assigned to a @klass variable
7029 mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass)
7032 MonoType **klass_argv, **oklass_argv;
7033 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7034 MonoGenericContainer *container = klass_gtd->generic_container;
7036 /*Viable candidates are instances of the same generic interface*/
7037 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
7040 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7041 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7043 for (j = 0; j < container->type_argc; ++j) {
7044 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7045 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7047 if (param1_class->valuetype != param2_class->valuetype)
7051 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7052 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7054 if (param1_class != param2_class) {
7055 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7056 if (!mono_class_is_assignable_from (param1_class, param2_class))
7058 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7059 if (!mono_class_is_assignable_from (param2_class, param1_class))
7069 * mono_class_is_assignable_from:
7070 * @klass: the class to be assigned to
7071 * @oklass: the source class
7073 * Return: true if an instance of object oklass can be assigned to an
7074 * instance of object @klass
7077 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
7080 mono_class_init (klass);
7082 if (!oklass->inited)
7083 mono_class_init (oklass);
7085 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
7086 return klass == oklass;
7088 if (MONO_CLASS_IS_INTERFACE (klass)) {
7089 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
7092 /* interface_offsets might not be set for dynamic classes */
7093 if (oklass->ref_info_handle && !oklass->interface_bitmap)
7095 * oklass might be a generic type parameter but they have
7096 * interface_offsets set.
7098 return mono_reflection_call_is_assignable_to (oklass, klass);
7099 if (!oklass->interface_bitmap)
7100 /* Happens with generic instances of not-yet created dynamic types */
7102 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
7105 if (mono_class_has_variant_generic_params (klass)) {
7108 mono_class_setup_interfaces (oklass, &error);
7109 if (!mono_error_ok (&error)) {
7110 mono_error_cleanup (&error);
7114 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
7115 for (i = 0; i < oklass->interface_offsets_count; ++i) {
7116 MonoClass *iface = oklass->interfaces_packed [i];
7118 if (mono_class_is_variant_compatible (klass, iface))
7123 } else if (klass->delegate) {
7124 if (mono_class_has_variant_generic_params (klass) && mono_class_is_variant_compatible (klass, oklass))
7126 }else if (klass->rank) {
7127 MonoClass *eclass, *eoclass;
7129 if (oklass->rank != klass->rank)
7132 /* vectors vs. one dimensional arrays */
7133 if (oklass->byval_arg.type != klass->byval_arg.type)
7136 eclass = klass->cast_class;
7137 eoclass = oklass->cast_class;
7140 * a is b does not imply a[] is b[] when a is a valuetype, and
7141 * b is a reference type.
7144 if (eoclass->valuetype) {
7145 if ((eclass == mono_defaults.enum_class) ||
7146 (eclass == mono_defaults.enum_class->parent) ||
7147 (eclass == mono_defaults.object_class))
7151 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7152 } else if (mono_class_is_nullable (klass)) {
7153 if (mono_class_is_nullable (oklass))
7154 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7156 return mono_class_is_assignable_from (klass->cast_class, oklass);
7157 } else if (klass == mono_defaults.object_class)
7160 return mono_class_has_parent (oklass, klass);
7163 /*Check if @oklass is variant compatible with @klass.*/
7165 mono_class_is_variant_compatible_slow (MonoClass *klass, MonoClass *oklass)
7168 MonoType **klass_argv, **oklass_argv;
7169 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7170 MonoGenericContainer *container = klass_gtd->generic_container;
7172 /*Viable candidates are instances of the same generic interface*/
7173 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
7176 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7177 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7179 for (j = 0; j < container->type_argc; ++j) {
7180 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7181 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7183 if (param1_class->valuetype != param2_class->valuetype)
7187 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7188 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7190 if (param1_class != param2_class) {
7191 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7192 if (!mono_class_is_assignable_from_slow (param1_class, param2_class))
7194 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7195 if (!mono_class_is_assignable_from_slow (param2_class, param1_class))
7203 /*Check if @candidate implements the interface @target*/
7205 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
7209 gboolean is_variant = mono_class_has_variant_generic_params (target);
7211 if (is_variant && MONO_CLASS_IS_INTERFACE (candidate)) {
7212 if (mono_class_is_variant_compatible_slow (target, candidate))
7217 if (candidate == target)
7220 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7221 if (candidate->image->dynamic && !candidate->wastypebuilder) {
7222 MonoReflectionTypeBuilder *tb = mono_class_get_ref_info (candidate);
7224 if (tb && tb->interfaces) {
7225 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
7226 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
7227 MonoClass *iface_class = mono_class_from_mono_type (iface->type);
7228 if (iface_class == target)
7230 if (is_variant && mono_class_is_variant_compatible_slow (target, iface_class))
7232 if (mono_class_implement_interface_slow (target, iface_class))
7237 /*setup_interfaces don't mono_class_init anything*/
7238 mono_class_setup_interfaces (candidate, &error);
7239 if (!mono_error_ok (&error)) {
7240 mono_error_cleanup (&error);
7244 for (i = 0; i < candidate->interface_count; ++i) {
7245 if (candidate->interfaces [i] == target)
7248 if (is_variant && mono_class_is_variant_compatible_slow (target, candidate->interfaces [i]))
7251 if (mono_class_implement_interface_slow (target, candidate->interfaces [i]))
7255 candidate = candidate->parent;
7256 } while (candidate);
7262 * Check if @oklass can be assigned to @klass.
7263 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7266 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
7268 if (candidate == target)
7270 if (target == mono_defaults.object_class)
7273 /*setup_supertypes don't mono_class_init anything */
7274 mono_class_setup_supertypes (candidate);
7275 mono_class_setup_supertypes (target);
7277 if (mono_class_has_parent (candidate, target))
7280 /*If target is not an interface there is no need to check them.*/
7281 if (MONO_CLASS_IS_INTERFACE (target))
7282 return mono_class_implement_interface_slow (target, candidate);
7284 if (target->delegate && mono_class_has_variant_generic_params (target))
7285 return mono_class_is_variant_compatible (target, candidate);
7287 /*FIXME properly handle nullables and arrays */
7293 * mono_class_get_cctor:
7294 * @klass: A MonoClass pointer
7296 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7299 mono_class_get_cctor (MonoClass *klass)
7301 MonoCachedClassInfo cached_info;
7303 if (klass->image->dynamic) {
7305 * has_cctor is not set for these classes because mono_class_init () is
7308 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7311 if (!klass->has_cctor)
7314 if (mono_class_get_cached_class_info (klass, &cached_info))
7315 return mono_get_method (klass->image, cached_info.cctor_token, klass);
7317 if (klass->generic_class && !klass->methods)
7318 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
7320 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7324 * mono_class_get_finalizer:
7325 * @klass: The MonoClass pointer
7327 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7330 mono_class_get_finalizer (MonoClass *klass)
7332 MonoCachedClassInfo cached_info;
7335 mono_class_init (klass);
7336 if (!klass->has_finalize)
7339 if (mono_class_get_cached_class_info (klass, &cached_info))
7340 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
7342 mono_class_setup_vtable (klass);
7343 return klass->vtable [finalize_slot];
7348 * mono_class_needs_cctor_run:
7349 * @klass: the MonoClass pointer
7350 * @caller: a MonoMethod describing the caller
7352 * Determines whenever the class has a static constructor and whenever it
7353 * needs to be called when executing CALLER.
7356 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
7360 method = mono_class_get_cctor (klass);
7362 return (method == caller) ? FALSE : TRUE;
7368 * mono_class_array_element_size:
7371 * Returns: the number of bytes an element of type @klass
7372 * uses when stored into an array.
7375 mono_class_array_element_size (MonoClass *klass)
7377 MonoType *type = &klass->byval_arg;
7380 switch (type->type) {
7383 case MONO_TYPE_BOOLEAN:
7387 case MONO_TYPE_CHAR:
7396 case MONO_TYPE_CLASS:
7397 case MONO_TYPE_STRING:
7398 case MONO_TYPE_OBJECT:
7399 case MONO_TYPE_SZARRAY:
7400 case MONO_TYPE_ARRAY:
7402 case MONO_TYPE_MVAR:
7403 return sizeof (gpointer);
7408 case MONO_TYPE_VALUETYPE:
7409 if (type->data.klass->enumtype) {
7410 type = mono_class_enum_basetype (type->data.klass);
7411 klass = klass->element_class;
7414 return mono_class_instance_size (klass) - sizeof (MonoObject);
7415 case MONO_TYPE_GENERICINST:
7416 type = &type->data.generic_class->container_class->byval_arg;
7419 case MONO_TYPE_VOID:
7423 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
7429 * mono_array_element_size:
7430 * @ac: pointer to a #MonoArrayClass
7432 * Returns: the size of single array element.
7435 mono_array_element_size (MonoClass *ac)
7437 g_assert (ac->rank);
7438 return ac->sizes.element_size;
7442 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
7443 MonoGenericContext *context)
7445 if (image->dynamic) {
7446 MonoClass *tmp_handle_class;
7447 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
7449 g_assert (tmp_handle_class);
7451 *handle_class = tmp_handle_class;
7453 if (tmp_handle_class == mono_defaults.typehandle_class)
7454 return &((MonoClass*)obj)->byval_arg;
7459 switch (token & 0xff000000) {
7460 case MONO_TOKEN_TYPE_DEF:
7461 case MONO_TOKEN_TYPE_REF:
7462 case MONO_TOKEN_TYPE_SPEC: {
7465 *handle_class = mono_defaults.typehandle_class;
7466 type = mono_type_get_full (image, token, context);
7469 mono_class_init (mono_class_from_mono_type (type));
7470 /* We return a MonoType* as handle */
7473 case MONO_TOKEN_FIELD_DEF: {
7475 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
7479 *handle_class = mono_defaults.fieldhandle_class;
7480 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
7483 mono_class_init (class);
7484 return mono_class_get_field (class, token);
7486 case MONO_TOKEN_METHOD_DEF:
7487 case MONO_TOKEN_METHOD_SPEC: {
7489 meth = mono_get_method_full (image, token, NULL, context);
7491 *handle_class = mono_defaults.methodhandle_class;
7494 case MONO_TOKEN_MEMBER_REF: {
7495 guint32 cols [MONO_MEMBERREF_SIZE];
7497 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
7498 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
7499 mono_metadata_decode_blob_size (sig, &sig);
7500 if (*sig == 0x6) { /* it's a field */
7502 MonoClassField *field;
7503 field = mono_field_from_token (image, token, &klass, context);
7505 *handle_class = mono_defaults.fieldhandle_class;
7509 meth = mono_get_method_full (image, token, NULL, context);
7511 *handle_class = mono_defaults.methodhandle_class;
7516 g_warning ("Unknown token 0x%08x in ldtoken", token);
7523 * This function might need to call runtime functions so it can't be part
7524 * of the metadata library.
7526 static MonoLookupDynamicToken lookup_dynamic = NULL;
7529 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
7531 lookup_dynamic = func;
7535 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
7537 MonoClass *handle_class;
7539 return lookup_dynamic (image, token, TRUE, &handle_class, context);
7543 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
7545 return lookup_dynamic (image, token, valid_token, handle_class, context);
7548 static MonoGetCachedClassInfo get_cached_class_info = NULL;
7551 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
7553 get_cached_class_info = func;
7557 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
7559 if (!get_cached_class_info)
7562 return get_cached_class_info (klass, res);
7566 mono_install_get_class_from_name (MonoGetClassFromName func)
7568 get_class_from_name = func;
7572 mono_class_get_image (MonoClass *klass)
7574 return klass->image;
7578 * mono_class_get_element_class:
7579 * @klass: the MonoClass to act on
7581 * Returns: the element class of an array or an enumeration.
7584 mono_class_get_element_class (MonoClass *klass)
7586 return klass->element_class;
7590 * mono_class_is_valuetype:
7591 * @klass: the MonoClass to act on
7593 * Returns: true if the MonoClass represents a ValueType.
7596 mono_class_is_valuetype (MonoClass *klass)
7598 return klass->valuetype;
7602 * mono_class_is_enum:
7603 * @klass: the MonoClass to act on
7605 * Returns: true if the MonoClass represents an enumeration.
7608 mono_class_is_enum (MonoClass *klass)
7610 return klass->enumtype;
7614 * mono_class_enum_basetype:
7615 * @klass: the MonoClass to act on
7617 * Returns: the underlying type representation for an enumeration.
7620 mono_class_enum_basetype (MonoClass *klass)
7622 if (klass->element_class == klass)
7623 /* SRE or broken types */
7626 return &klass->element_class->byval_arg;
7630 * mono_class_get_parent
7631 * @klass: the MonoClass to act on
7633 * Returns: the parent class for this class.
7636 mono_class_get_parent (MonoClass *klass)
7638 return klass->parent;
7642 * mono_class_get_nesting_type;
7643 * @klass: the MonoClass to act on
7645 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
7648 mono_class_get_nesting_type (MonoClass *klass)
7650 return klass->nested_in;
7654 * mono_class_get_rank:
7655 * @klass: the MonoClass to act on
7657 * Returns: the rank for the array (the number of dimensions).
7660 mono_class_get_rank (MonoClass *klass)
7666 * mono_class_get_flags:
7667 * @klass: the MonoClass to act on
7669 * The type flags from the TypeDef table from the metadata.
7670 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
7673 * Returns: the flags from the TypeDef table.
7676 mono_class_get_flags (MonoClass *klass)
7678 return klass->flags;
7682 * mono_class_get_name
7683 * @klass: the MonoClass to act on
7685 * Returns: the name of the class.
7688 mono_class_get_name (MonoClass *klass)
7694 * mono_class_get_namespace:
7695 * @klass: the MonoClass to act on
7697 * Returns: the namespace of the class.
7700 mono_class_get_namespace (MonoClass *klass)
7702 return klass->name_space;
7706 * mono_class_get_type:
7707 * @klass: the MonoClass to act on
7709 * This method returns the internal Type representation for the class.
7711 * Returns: the MonoType from the class.
7714 mono_class_get_type (MonoClass *klass)
7716 return &klass->byval_arg;
7720 * mono_class_get_type_token
7721 * @klass: the MonoClass to act on
7723 * This method returns type token for the class.
7725 * Returns: the type token for the class.
7728 mono_class_get_type_token (MonoClass *klass)
7730 return klass->type_token;
7734 * mono_class_get_byref_type:
7735 * @klass: the MonoClass to act on
7740 mono_class_get_byref_type (MonoClass *klass)
7742 return &klass->this_arg;
7746 * mono_class_num_fields:
7747 * @klass: the MonoClass to act on
7749 * Returns: the number of static and instance fields in the class.
7752 mono_class_num_fields (MonoClass *klass)
7754 return klass->field.count;
7758 * mono_class_num_methods:
7759 * @klass: the MonoClass to act on
7761 * Returns: the number of methods in the class.
7764 mono_class_num_methods (MonoClass *klass)
7766 return klass->method.count;
7770 * mono_class_num_properties
7771 * @klass: the MonoClass to act on
7773 * Returns: the number of properties in the class.
7776 mono_class_num_properties (MonoClass *klass)
7778 mono_class_setup_properties (klass);
7780 return klass->ext->property.count;
7784 * mono_class_num_events:
7785 * @klass: the MonoClass to act on
7787 * Returns: the number of events in the class.
7790 mono_class_num_events (MonoClass *klass)
7792 mono_class_setup_events (klass);
7794 return klass->ext->event.count;
7798 * mono_class_get_fields:
7799 * @klass: the MonoClass to act on
7801 * This routine is an iterator routine for retrieving the fields in a class.
7803 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7804 * iterate over all of the elements. When no more values are
7805 * available, the return value is NULL.
7807 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
7810 mono_class_get_fields (MonoClass* klass, gpointer *iter)
7812 MonoClassField* field;
7816 mono_class_setup_fields_locking (klass);
7817 if (klass->exception_type)
7819 /* start from the first */
7820 if (klass->field.count) {
7821 return *iter = &klass->fields [0];
7829 if (field < &klass->fields [klass->field.count]) {
7830 return *iter = field;
7836 * mono_class_get_methods
7837 * @klass: the MonoClass to act on
7839 * This routine is an iterator routine for retrieving the fields in a class.
7841 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7842 * iterate over all of the elements. When no more values are
7843 * available, the return value is NULL.
7845 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
7848 mono_class_get_methods (MonoClass* klass, gpointer *iter)
7850 MonoMethod** method;
7854 mono_class_setup_methods (klass);
7857 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7858 * FIXME we should better report this error to the caller
7860 if (!klass->methods)
7862 /* start from the first */
7863 if (klass->method.count) {
7864 *iter = &klass->methods [0];
7865 return klass->methods [0];
7873 if (method < &klass->methods [klass->method.count]) {
7881 * mono_class_get_virtual_methods:
7883 * Iterate over the virtual methods of KLASS.
7885 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
7888 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
7890 MonoMethod** method;
7893 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
7895 mono_class_setup_methods (klass);
7897 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7898 * FIXME we should better report this error to the caller
7900 if (!klass->methods)
7902 /* start from the first */
7903 method = &klass->methods [0];
7908 while (method < &klass->methods [klass->method.count]) {
7909 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
7913 if (method < &klass->methods [klass->method.count]) {
7920 /* Search directly in metadata to avoid calling setup_methods () */
7921 MonoMethod *res = NULL;
7927 start_index = GPOINTER_TO_UINT (*iter);
7930 for (i = start_index; i < klass->method.count; ++i) {
7933 /* class->method.first points into the methodptr table */
7934 flags = mono_metadata_decode_table_row_col (klass->image, MONO_TABLE_METHOD, klass->method.first + i, MONO_METHOD_FLAGS);
7936 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
7940 if (i < klass->method.count) {
7941 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7942 /* Add 1 here so the if (*iter) check fails */
7943 *iter = GUINT_TO_POINTER (i + 1);
7952 * mono_class_get_properties:
7953 * @klass: the MonoClass to act on
7955 * This routine is an iterator routine for retrieving the properties in a class.
7957 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7958 * iterate over all of the elements. When no more values are
7959 * available, the return value is NULL.
7961 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
7964 mono_class_get_properties (MonoClass* klass, gpointer *iter)
7966 MonoProperty* property;
7970 mono_class_setup_properties (klass);
7971 /* start from the first */
7972 if (klass->ext->property.count) {
7973 return *iter = &klass->ext->properties [0];
7981 if (property < &klass->ext->properties [klass->ext->property.count]) {
7982 return *iter = property;
7988 * mono_class_get_events:
7989 * @klass: the MonoClass to act on
7991 * This routine is an iterator routine for retrieving the properties in a class.
7993 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7994 * iterate over all of the elements. When no more values are
7995 * available, the return value is NULL.
7997 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
8000 mono_class_get_events (MonoClass* klass, gpointer *iter)
8006 mono_class_setup_events (klass);
8007 /* start from the first */
8008 if (klass->ext->event.count) {
8009 return *iter = &klass->ext->events [0];
8017 if (event < &klass->ext->events [klass->ext->event.count]) {
8018 return *iter = event;
8024 * mono_class_get_interfaces
8025 * @klass: the MonoClass to act on
8027 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
8029 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8030 * iterate over all of the elements. When no more values are
8031 * available, the return value is NULL.
8033 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8036 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
8044 mono_class_init (klass);
8045 if (!klass->interfaces_inited) {
8046 mono_class_setup_interfaces (klass, &error);
8047 if (!mono_error_ok (&error)) {
8048 mono_error_cleanup (&error);
8052 /* start from the first */
8053 if (klass->interface_count) {
8054 *iter = &klass->interfaces [0];
8055 return klass->interfaces [0];
8063 if (iface < &klass->interfaces [klass->interface_count]) {
8071 * mono_class_get_nested_types
8072 * @klass: the MonoClass to act on
8074 * This routine is an iterator routine for retrieving the nested types of a class.
8075 * This works only if @klass is non-generic, or a generic type definition.
8077 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8078 * iterate over all of the elements. When no more values are
8079 * available, the return value is NULL.
8081 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8084 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
8091 if (!klass->nested_classes_inited) {
8092 if (!klass->type_token)
8093 klass->nested_classes_inited = TRUE;
8094 mono_loader_lock ();
8095 if (!klass->nested_classes_inited) {
8096 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
8099 guint32 cols [MONO_NESTED_CLASS_SIZE];
8100 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
8101 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
8103 mono_loader_clear_error ();
8104 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8107 mono_class_alloc_ext (klass);
8108 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
8110 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8113 mono_memory_barrier ();
8114 klass->nested_classes_inited = TRUE;
8115 mono_loader_unlock ();
8119 /* start from the first */
8120 if (klass->ext && klass->ext->nested_classes) {
8121 *iter = klass->ext->nested_classes;
8122 return klass->ext->nested_classes->data;
8124 /* no nested types */
8138 * mono_field_get_name:
8139 * @field: the MonoClassField to act on
8141 * Returns: the name of the field.
8144 mono_field_get_name (MonoClassField *field)
8150 * mono_field_get_type:
8151 * @field: the MonoClassField to act on
8153 * Returns: MonoType of the field.
8156 mono_field_get_type (MonoClassField *field)
8159 MonoType *type = mono_field_get_type_checked (field, &error);
8160 if (!mono_error_ok (&error)) {
8161 mono_trace_warning (MONO_TRACE_TYPE, "Could not load field's type due to %s", mono_error_get_message (&error));
8162 mono_error_cleanup (&error);
8169 * mono_field_get_type_checked:
8170 * @field: the MonoClassField to act on
8171 * @error: used to return any erro found while retrieving @field type
8173 * Returns: MonoType of the field.
8176 mono_field_get_type_checked (MonoClassField *field, MonoError *error)
8178 mono_error_init (error);
8180 mono_field_resolve_type (field, error);
8185 * mono_field_get_parent:
8186 * @field: the MonoClassField to act on
8188 * Returns: MonoClass where the field was defined.
8191 mono_field_get_parent (MonoClassField *field)
8193 return field->parent;
8197 * mono_field_get_flags;
8198 * @field: the MonoClassField to act on
8200 * The metadata flags for a field are encoded using the
8201 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8203 * Returns: the flags for the field.
8206 mono_field_get_flags (MonoClassField *field)
8209 return mono_field_resolve_flags (field);
8210 return field->type->attrs;
8214 * mono_field_get_offset;
8215 * @field: the MonoClassField to act on
8217 * Returns: the field offset.
8220 mono_field_get_offset (MonoClassField *field)
8222 return field->offset;
8226 mono_field_get_rva (MonoClassField *field)
8230 MonoClass *klass = field->parent;
8232 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
8234 if (!klass->ext || !klass->ext->field_def_values) {
8235 mono_loader_lock ();
8236 mono_class_alloc_ext (klass);
8237 if (!klass->ext->field_def_values)
8238 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
8239 mono_loader_unlock ();
8242 field_index = mono_field_get_index (field);
8244 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
8245 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
8247 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
8248 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
8251 return klass->ext->field_def_values [field_index].data;
8255 * mono_field_get_data;
8256 * @field: the MonoClassField to act on
8258 * Returns: pointer to the metadata constant value or to the field
8259 * data if it has an RVA flag.
8262 mono_field_get_data (MonoClassField *field)
8264 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
8265 MonoTypeEnum def_type;
8267 return mono_class_get_field_default_value (field, &def_type);
8268 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
8269 return mono_field_get_rva (field);
8276 * mono_property_get_name:
8277 * @prop: the MonoProperty to act on
8279 * Returns: the name of the property
8282 mono_property_get_name (MonoProperty *prop)
8288 * mono_property_get_set_method
8289 * @prop: the MonoProperty to act on.
8291 * Returns: the setter method of the property (A MonoMethod)
8294 mono_property_get_set_method (MonoProperty *prop)
8300 * mono_property_get_get_method
8301 * @prop: the MonoProperty to act on.
8303 * Returns: the setter method of the property (A MonoMethod)
8306 mono_property_get_get_method (MonoProperty *prop)
8312 * mono_property_get_parent:
8313 * @prop: the MonoProperty to act on.
8315 * Returns: the MonoClass where the property was defined.
8318 mono_property_get_parent (MonoProperty *prop)
8320 return prop->parent;
8324 * mono_property_get_flags:
8325 * @prop: the MonoProperty to act on.
8327 * The metadata flags for a property are encoded using the
8328 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8330 * Returns: the flags for the property.
8333 mono_property_get_flags (MonoProperty *prop)
8339 * mono_event_get_name:
8340 * @event: the MonoEvent to act on
8342 * Returns: the name of the event.
8345 mono_event_get_name (MonoEvent *event)
8351 * mono_event_get_add_method:
8352 * @event: The MonoEvent to act on.
8354 * Returns: the @add' method for the event (a MonoMethod).
8357 mono_event_get_add_method (MonoEvent *event)
8363 * mono_event_get_remove_method:
8364 * @event: The MonoEvent to act on.
8366 * Returns: the @remove method for the event (a MonoMethod).
8369 mono_event_get_remove_method (MonoEvent *event)
8371 return event->remove;
8375 * mono_event_get_raise_method:
8376 * @event: The MonoEvent to act on.
8378 * Returns: the @raise method for the event (a MonoMethod).
8381 mono_event_get_raise_method (MonoEvent *event)
8383 return event->raise;
8387 * mono_event_get_parent:
8388 * @event: the MonoEvent to act on.
8390 * Returns: the MonoClass where the event is defined.
8393 mono_event_get_parent (MonoEvent *event)
8395 return event->parent;
8399 * mono_event_get_flags
8400 * @event: the MonoEvent to act on.
8402 * The metadata flags for an event are encoded using the
8403 * EVENT_* constants. See the tabledefs.h file for details.
8405 * Returns: the flags for the event.
8408 mono_event_get_flags (MonoEvent *event)
8410 return event->attrs;
8414 * mono_class_get_method_from_name:
8415 * @klass: where to look for the method
8416 * @name_space: name of the method
8417 * @param_count: number of parameters. -1 for any number.
8419 * Obtains a MonoMethod with a given name and number of parameters.
8420 * It only works if there are no multiple signatures for any given method name.
8423 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
8425 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
8429 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
8431 MonoMethod *res = NULL;
8434 /* Search directly in the metadata to avoid calling setup_methods () */
8435 for (i = 0; i < klass->method.count; ++i) {
8436 guint32 cols [MONO_METHOD_SIZE];
8439 /* class->method.first points into the methodptr table */
8440 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
8442 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
8443 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8444 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
8455 * mono_class_get_method_from_name_flags:
8456 * @klass: where to look for the method
8457 * @name_space: name of the method
8458 * @param_count: number of parameters. -1 for any number.
8459 * @flags: flags which must be set in the method
8461 * Obtains a MonoMethod with a given name and number of parameters.
8462 * It only works if there are no multiple signatures for any given method name.
8465 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
8467 MonoMethod *res = NULL;
8470 mono_class_init (klass);
8472 if (klass->generic_class && !klass->methods) {
8473 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
8475 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
8479 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
8480 mono_class_setup_methods (klass);
8482 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8483 See mono/tests/array_load_exception.il
8484 FIXME we should better report this error to the caller
8486 if (!klass->methods)
8488 for (i = 0; i < klass->method.count; ++i) {
8489 MonoMethod *method = klass->methods [i];
8491 if (method->name[0] == name [0] &&
8492 !strcmp (name, method->name) &&
8493 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
8494 ((method->flags & flags) == flags)) {
8501 res = find_method_in_metadata (klass, name, param_count, flags);
8508 * mono_class_set_failure:
8509 * @klass: class in which the failure was detected
8510 * @ex_type: the kind of exception/error to be thrown (later)
8511 * @ex_data: exception data (specific to each type of exception/error)
8513 * Keep a detected failure informations in the class for later processing.
8514 * Note that only the first failure is kept.
8516 * LOCKING: Acquires the loader lock.
8519 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
8521 if (klass->exception_type)
8524 mono_loader_lock ();
8525 klass->exception_type = ex_type;
8527 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
8528 mono_loader_unlock ();
8534 * mono_class_get_exception_data:
8536 * Return the exception_data property of KLASS.
8538 * LOCKING: Acquires the loader lock.
8541 mono_class_get_exception_data (MonoClass *klass)
8543 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
8547 * mono_classes_init:
8549 * Initialize the resources used by this module.
8552 mono_classes_init (void)
8554 mono_counters_register ("Inflated methods size",
8555 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
8556 mono_counters_register ("Inflated classes",
8557 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
8558 mono_counters_register ("Inflated classes size",
8559 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
8560 mono_counters_register ("MonoClass size",
8561 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
8562 mono_counters_register ("MonoClassExt size",
8563 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
8567 * mono_classes_cleanup:
8569 * Free the resources used by this module.
8572 mono_classes_cleanup (void)
8574 if (global_interface_bitset)
8575 mono_bitset_free (global_interface_bitset);
8579 * mono_class_get_exception_for_failure:
8580 * @klass: class in which the failure was detected
8582 * Return a constructed MonoException than the caller can then throw
8583 * using mono_raise_exception - or NULL if no failure is present (or
8584 * doesn't result in an exception).
8587 mono_class_get_exception_for_failure (MonoClass *klass)
8589 gpointer exception_data = mono_class_get_exception_data (klass);
8591 switch (klass->exception_type) {
8592 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
8593 MonoDomain *domain = mono_domain_get ();
8594 MonoSecurityManager* secman = mono_security_manager_get_methods ();
8595 MonoMethod *method = exception_data;
8596 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
8597 MonoObject *exc = NULL;
8601 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
8602 args [2] = mono_type_get_object (domain, &klass->byval_arg);
8603 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
8605 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
8606 return (MonoException*) exc;
8608 case MONO_EXCEPTION_TYPE_LOAD: {
8611 char *str = mono_type_get_full_name (klass);
8612 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
8613 name = mono_string_new (mono_domain_get (), str);
8615 ex = mono_get_exception_type_load (name, astr);
8619 case MONO_EXCEPTION_MISSING_METHOD: {
8620 char *class_name = exception_data;
8621 char *assembly_name = class_name + strlen (class_name) + 1;
8623 return mono_get_exception_missing_method (class_name, assembly_name);
8625 case MONO_EXCEPTION_MISSING_FIELD: {
8626 char *class_name = exception_data;
8627 char *member_name = class_name + strlen (class_name) + 1;
8629 return mono_get_exception_missing_field (class_name, member_name);
8631 case MONO_EXCEPTION_FILE_NOT_FOUND: {
8632 char *msg_format = exception_data;
8633 char *assembly_name = msg_format + strlen (msg_format) + 1;
8634 char *msg = g_strdup_printf (msg_format, assembly_name);
8637 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
8643 case MONO_EXCEPTION_BAD_IMAGE: {
8644 return mono_get_exception_bad_image_format (exception_data);
8647 MonoLoaderError *error;
8650 error = mono_loader_get_last_error ();
8652 ex = mono_loader_error_prepare_exception (error);
8656 /* TODO - handle other class related failures */
8663 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
8665 outer_klass = mono_class_get_generic_type_definition (outer_klass);
8666 inner_klass = mono_class_get_generic_type_definition (inner_klass);
8668 if (outer_klass == inner_klass)
8670 inner_klass = inner_klass->nested_in;
8671 } while (inner_klass);
8676 mono_class_get_generic_type_definition (MonoClass *klass)
8678 return klass->generic_class ? klass->generic_class->container_class : klass;
8682 * Check if @klass is a subtype of @parent ignoring generic instantiations.
8684 * Generic instantiations are ignored for all super types of @klass.
8686 * Visibility checks ignoring generic instantiations.
8689 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
8692 klass = mono_class_get_generic_type_definition (klass);
8693 parent = mono_class_get_generic_type_definition (parent);
8695 for (i = 0; i < klass->idepth; ++i) {
8696 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
8702 * Subtype can only access parent members with family protection if the site object
8703 * is subclass of Subtype. For example:
8704 * class A { protected int x; }
8706 * void valid_access () {
8710 * void invalid_access () {
8717 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
8719 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
8722 if (context_klass == NULL)
8724 /*if access_klass is not member_klass context_klass must be type compat*/
8725 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
8731 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
8734 if (accessing == accessed)
8736 if (!accessed || !accessing)
8739 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
8740 * anywhere so untrusted friends are not safe to access platform's code internals */
8741 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
8742 if (!mono_security_core_clr_can_access_internals (accessing->image, accessed->image))
8746 mono_assembly_load_friends (accessed);
8747 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
8748 MonoAssemblyName *friend = tmp->data;
8749 /* Be conservative with checks */
8752 if (strcmp (accessing->aname.name, friend->name))
8754 if (friend->public_key_token [0]) {
8755 if (!accessing->aname.public_key_token [0])
8757 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
8766 * If klass is a generic type or if it is derived from a generic type, return the
8767 * MonoClass of the generic definition
8768 * Returns NULL if not found
8771 get_generic_definition_class (MonoClass *klass)
8774 if (klass->generic_class && klass->generic_class->container_class)
8775 return klass->generic_class->container_class;
8776 klass = klass->parent;
8782 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
8785 for (i = 0; i < ginst->type_argc; ++i) {
8786 MonoType *type = ginst->type_argv[i];
8787 switch (type->type) {
8788 case MONO_TYPE_SZARRAY:
8789 if (!can_access_type (access_klass, type->data.klass))
8792 case MONO_TYPE_ARRAY:
8793 if (!can_access_type (access_klass, type->data.array->eklass))
8797 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
8800 case MONO_TYPE_CLASS:
8801 case MONO_TYPE_VALUETYPE:
8802 case MONO_TYPE_GENERICINST:
8803 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
8811 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
8815 if (access_klass->element_class && !access_klass->enumtype)
8816 access_klass = access_klass->element_class;
8818 if (member_klass->element_class && !member_klass->enumtype)
8819 member_klass = member_klass->element_class;
8821 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
8823 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
8826 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
8829 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
8832 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
8835 /*Non nested type with nested visibility. We just fail it.*/
8836 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
8839 switch (access_level) {
8840 case TYPE_ATTRIBUTE_NOT_PUBLIC:
8841 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8843 case TYPE_ATTRIBUTE_PUBLIC:
8846 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
8849 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
8850 return is_nesting_type (member_klass, access_klass);
8852 case TYPE_ATTRIBUTE_NESTED_FAMILY:
8853 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8855 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
8856 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8858 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
8859 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
8860 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8862 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
8863 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
8864 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8869 /* FIXME: check visibility of type, too */
8871 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
8873 MonoClass *member_generic_def;
8874 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
8875 access_klass->generic_container) &&
8876 (member_generic_def = get_generic_definition_class (member_klass))) {
8877 MonoClass *access_container;
8879 if (access_klass->generic_container)
8880 access_container = access_klass;
8882 access_container = access_klass->generic_class->container_class;
8884 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
8888 /* Partition I 8.5.3.2 */
8889 /* the access level values are the same for fields and methods */
8890 switch (access_level) {
8891 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
8892 /* same compilation unit */
8893 return access_klass->image == member_klass->image;
8894 case FIELD_ATTRIBUTE_PRIVATE:
8895 return access_klass == member_klass;
8896 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
8897 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
8898 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
8901 case FIELD_ATTRIBUTE_ASSEMBLY:
8902 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8903 case FIELD_ATTRIBUTE_FAMILY:
8904 if (is_valid_family_access (access_klass, member_klass, context_klass))
8907 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
8908 if (is_valid_family_access (access_klass, member_klass, context_klass))
8910 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8911 case FIELD_ATTRIBUTE_PUBLIC:
8918 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
8920 /* FIXME: check all overlapping fields */
8921 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8923 MonoClass *nested = method->klass->nested_in;
8925 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8928 nested = nested->nested_in;
8935 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
8937 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8939 MonoClass *nested = method->klass->nested_in;
8941 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8944 nested = nested->nested_in;
8949 * with generics calls to explicit interface implementations can be expressed
8950 * directly: the method is private, but we must allow it. This may be opening
8951 * a hole or the generics code should handle this differently.
8952 * Maybe just ensure the interface type is public.
8954 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
8960 * mono_method_can_access_method_full:
8961 * @method: The caller method
8962 * @called: The called method
8963 * @context_klass: The static type on stack of the owner @called object used
8965 * This function must be used with instance calls, as they have more strict family accessibility.
8966 * It can be used with static methods, but context_klass should be NULL.
8968 * Returns: TRUE if caller have proper visibility and acessibility to @called
8971 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
8973 MonoClass *access_class = method->klass;
8974 MonoClass *member_class = called->klass;
8975 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8977 MonoClass *nested = access_class->nested_in;
8979 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8982 nested = nested->nested_in;
8989 can = can_access_type (access_class, member_class);
8991 MonoClass *nested = access_class->nested_in;
8993 can = can_access_type (nested, member_class);
8996 nested = nested->nested_in;
9003 if (called->is_inflated) {
9004 MonoMethodInflated * infl = (MonoMethodInflated*)called;
9005 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
9014 * mono_method_can_access_field_full:
9015 * @method: The caller method
9016 * @field: The accessed field
9017 * @context_klass: The static type on stack of the owner @field object used
9019 * This function must be used with instance fields, as they have more strict family accessibility.
9020 * It can be used with static fields, but context_klass should be NULL.
9022 * Returns: TRUE if caller have proper visibility and acessibility to @field
9025 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
9027 MonoClass *access_class = method->klass;
9028 MonoClass *member_class = field->parent;
9029 /* FIXME: check all overlapping fields */
9030 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9032 MonoClass *nested = access_class->nested_in;
9034 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9037 nested = nested->nested_in;
9044 can = can_access_type (access_class, member_class);
9046 MonoClass *nested = access_class->nested_in;
9048 can = can_access_type (nested, member_class);
9051 nested = nested->nested_in;
9061 * mono_type_is_valid_enum_basetype:
9062 * @type: The MonoType to check
9064 * Returns: TRUE if the type can be used as the basetype of an enum
9066 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
9067 switch (type->type) {
9070 case MONO_TYPE_BOOLEAN:
9073 case MONO_TYPE_CHAR:
9086 * mono_class_is_valid_enum:
9087 * @klass: An enum class to be validated
9089 * This method verify the required properties an enum should have.
9091 * Returns: TRUE if the informed enum class is valid
9093 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
9094 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
9095 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
9097 gboolean mono_class_is_valid_enum (MonoClass *klass) {
9098 MonoClassField * field;
9099 gpointer iter = NULL;
9100 gboolean found_base_field = FALSE;
9102 g_assert (klass->enumtype);
9103 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
9104 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
9108 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
9111 while ((field = mono_class_get_fields (klass, &iter))) {
9112 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
9113 if (found_base_field)
9115 found_base_field = TRUE;
9116 if (!mono_type_is_valid_enum_basetype (field->type))
9121 if (!found_base_field)
9124 if (klass->method.count > 0)
9131 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
9133 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
9137 * mono_class_setup_interface_id:
9139 * Initializes MonoClass::interface_id if required.
9141 * LOCKING: Acquires the loader lock.
9144 mono_class_setup_interface_id (MonoClass *class)
9146 mono_loader_lock ();
9147 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
9148 class->interface_id = mono_get_unique_iid (class);
9149 mono_loader_unlock ();
9153 * mono_class_alloc_ext:
9155 * Allocate klass->ext if not already done.
9156 * LOCKING: Assumes the loader lock is held.
9159 mono_class_alloc_ext (MonoClass *klass)
9162 klass->ext = mono_class_alloc0 (klass, sizeof (MonoClassExt));
9163 class_ext_size += sizeof (MonoClassExt);
9168 * mono_class_setup_interfaces:
9170 * Initialize class->interfaces/interfaces_count.
9171 * LOCKING: Acquires the loader lock.
9172 * This function can fail the type.
9175 mono_class_setup_interfaces (MonoClass *klass, MonoError *error)
9179 mono_error_init (error);
9181 if (klass->interfaces_inited)
9184 mono_loader_lock ();
9186 if (klass->interfaces_inited) {
9187 mono_loader_unlock ();
9191 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
9194 /* generic IList, ICollection, IEnumerable */
9195 klass->interface_count = 1;
9196 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
9198 args [0] = &klass->element_class->byval_arg;
9199 klass->interfaces [0] = mono_class_bind_generic_parameters (
9200 mono_defaults.generic_ilist_class, 1, args, FALSE);
9201 } else if (klass->generic_class) {
9202 MonoClass *gklass = klass->generic_class->container_class;
9204 klass->interface_count = gklass->interface_count;
9205 klass->interfaces = mono_class_new0 (klass, MonoClass *, klass->interface_count);
9206 for (i = 0; i < klass->interface_count; i++) {
9207 klass->interfaces [i] = mono_class_inflate_generic_class_checked (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class), error);
9208 if (!mono_error_ok (error)) {
9209 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not setup the interfaces"));
9210 g_free (klass->interfaces);
9211 klass->interfaces = NULL;
9217 mono_memory_barrier ();
9219 klass->interfaces_inited = TRUE;
9221 mono_loader_unlock ();
9225 mono_field_resolve_type (MonoClassField *field, MonoError *error)
9227 MonoClass *class = field->parent;
9228 MonoImage *image = class->image;
9229 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9230 int field_idx = field - class->fields;
9232 mono_error_init (error);
9235 MonoClassField *gfield = >d->fields [field_idx];
9236 MonoType *gtype = mono_field_get_type_checked (gfield, error);
9237 if (!mono_error_ok (error)) {
9238 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9239 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9243 field->type = mono_class_inflate_generic_type_no_copy (image, gtype, mono_class_get_context (class), error);
9244 if (!mono_error_ok (error)) {
9245 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9246 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9251 guint32 cols [MONO_FIELD_SIZE];
9252 MonoGenericContainer *container = NULL;
9253 int idx = class->field.first + field_idx;
9255 /*FIXME, in theory we do not lazy load SRE fields*/
9256 g_assert (!image->dynamic);
9258 if (class->generic_container) {
9259 container = class->generic_container;
9261 container = gtd->generic_container;
9262 g_assert (container);
9265 /* class->field.first and idx points into the fieldptr table */
9266 mono_metadata_decode_table_row (image, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
9268 if (!mono_verifier_verify_field_signature (image, cols [MONO_FIELD_SIGNATURE], NULL)) {
9269 mono_error_set_type_load_class (error, class, "Could not verify field %s signature", field->name);
9270 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9274 sig = mono_metadata_blob_heap (image, cols [MONO_FIELD_SIGNATURE]);
9276 mono_metadata_decode_value (sig, &sig);
9277 /* FIELD signature == 0x06 */
9278 g_assert (*sig == 0x06);
9279 field->type = mono_metadata_parse_type_full (image, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
9281 mono_error_set_type_load_class (error, class, "Could not load field %s type", field->name);
9282 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9283 mono_loader_clear_error ();
9289 mono_field_resolve_flags (MonoClassField *field)
9291 MonoClass *class = field->parent;
9292 MonoImage *image = class->image;
9293 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9294 int field_idx = field - class->fields;
9298 MonoClassField *gfield = >d->fields [field_idx];
9299 return mono_field_get_flags (gfield);
9301 int idx = class->field.first + field_idx;
9303 /*FIXME, in theory we do not lazy load SRE fields*/
9304 g_assert (!image->dynamic);
9306 return mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_FLAGS);
9311 * mono_class_setup_basic_field_info:
9312 * @class: The class to initialize
9314 * Initializes the class->fields array of fields.
9315 * Aquires the loader lock.
9318 mono_class_setup_basic_field_info_locking (MonoClass *class)
9320 mono_loader_lock ();
9321 mono_class_setup_basic_field_info (class);
9322 mono_loader_unlock ();
9326 * mono_class_get_fields_lazy:
9327 * @klass: the MonoClass to act on
9329 * This routine is an iterator routine for retrieving the fields in a class.
9330 * Only minimal information about fields are loaded. Accessors must be used
9331 * for all MonoClassField returned.
9333 * You must pass a gpointer that points to zero and is treated as an opaque handle to
9334 * iterate over all of the elements. When no more values are
9335 * available, the return value is NULL.
9337 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
9340 mono_class_get_fields_lazy (MonoClass* klass, gpointer *iter)
9342 MonoClassField* field;
9346 mono_class_setup_basic_field_info_locking (klass);
9349 /* start from the first */
9350 if (klass->field.count) {
9351 return *iter = &klass->fields [0];
9359 if (field < &klass->fields [klass->field.count]) {
9360 return *iter = field;