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)
20 #include <mono/io-layer/atomic.h>
22 #include <mono/metadata/image.h>
23 #include <mono/metadata/assembly.h>
24 #include <mono/metadata/metadata.h>
25 #include <mono/metadata/metadata-internals.h>
26 #include <mono/metadata/profiler-private.h>
27 #include <mono/metadata/tabledefs.h>
28 #include <mono/metadata/tokentype.h>
29 #include <mono/metadata/class-internals.h>
30 #include <mono/metadata/object.h>
31 #include <mono/metadata/appdomain.h>
32 #include <mono/metadata/mono-endian.h>
33 #include <mono/metadata/debug-helpers.h>
34 #include <mono/metadata/reflection.h>
35 #include <mono/metadata/exception.h>
36 #include <mono/metadata/security-manager.h>
37 #include <mono/metadata/security-core-clr.h>
38 #include <mono/metadata/attrdefs.h>
39 #include <mono/metadata/gc-internal.h>
40 #include <mono/metadata/verify-internals.h>
41 #include <mono/metadata/mono-debug.h>
42 #include <mono/utils/mono-counters.h>
46 gboolean mono_print_vtable = FALSE;
49 * Controls whenever mono_class_init () constructs a generic vtable. This is TRUE by
50 * default to avoid breaking embedding apps, but set to FALSE by the runtime executable
53 gboolean mono_setup_vtable_in_class_init = TRUE;
56 guint32 inflated_classes, inflated_classes_size, inflated_methods_size;
57 guint32 classes_size, class_ext_size;
59 /* Function supplied by the runtime to find classes by name using information from the AOT file */
60 static MonoGetClassFromName get_class_from_name = NULL;
62 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
63 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
64 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
65 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
66 static int generic_array_methods (MonoClass *class);
67 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
69 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
71 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
72 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
75 * mono_class_from_typeref:
77 * @type_token: a TypeRef token
79 * Creates the MonoClass* structure representing the type defined by
80 * the typeref token valid inside @image.
81 * Returns: the MonoClass* representing the typeref token, NULL ifcould
85 mono_class_from_typeref (MonoImage *image, guint32 type_token)
87 guint32 cols [MONO_TYPEREF_SIZE];
88 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
90 const char *name, *nspace;
94 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
96 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
97 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
99 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
100 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
101 case MONO_RESOLTION_SCOPE_MODULE:
103 g_error ("null ResolutionScope not yet handled");
104 /* a typedef in disguise */
105 return mono_class_from_name (image, nspace, name);
106 case MONO_RESOLTION_SCOPE_MODULEREF:
107 module = mono_image_load_module (image, idx);
109 return mono_class_from_name (module, nspace, name);
111 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
114 human_name = mono_stringify_assembly_name (&image->assembly->aname);
115 mono_loader_set_error_type_load (msg, human_name);
121 case MONO_RESOLTION_SCOPE_TYPEREF: {
122 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
125 if (enclosing->nested_classes_inited && enclosing->ext) {
126 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
127 for (tmp = enclosing->ext->nested_classes; tmp; tmp = tmp->next) {
129 if (strcmp (res->name, name) == 0)
133 /* Don't call mono_class_init as we might've been called by it recursively */
134 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
136 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
137 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
138 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
140 if (strcmp (nname, name) == 0)
141 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
143 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
146 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
149 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
153 if (!image->references || !image->references [idx - 1])
154 mono_assembly_load_reference (image, idx - 1);
155 g_assert (image->references [idx - 1]);
157 /* If the assembly did not load, register this as a type load exception */
158 if (image->references [idx - 1] == REFERENCE_MISSING){
159 MonoAssemblyName aname;
162 mono_assembly_get_assemblyref (image, idx - 1, &aname);
163 human_name = mono_stringify_assembly_name (&aname);
164 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
170 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
175 mono_image_memdup (MonoImage *image, void *data, guint size)
177 void *res = mono_image_alloc (image, size);
178 memcpy (res, data, size);
182 /* Copy everything mono_metadata_free_array free. */
184 mono_dup_array_type (MonoImage *image, MonoArrayType *a)
187 a = mono_image_memdup (image, a, sizeof (MonoArrayType));
189 a->sizes = mono_image_memdup (image, a->sizes, a->numsizes * sizeof (int));
191 a->lobounds = mono_image_memdup (image, a->lobounds, a->numlobounds * sizeof (int));
193 a = g_memdup (a, sizeof (MonoArrayType));
195 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
197 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
202 /* Copy everything mono_metadata_free_method_signature free. */
204 mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig)
208 sig = mono_metadata_signature_dup_full (image, sig);
210 sig->ret = mono_metadata_type_dup (image, sig->ret);
211 for (i = 0; i < sig->param_count; ++i)
212 sig->params [i] = mono_metadata_type_dup (image, sig->params [i]);
218 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
220 MonoAssembly *ta = klass->image->assembly;
222 g_string_append_printf (
223 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
225 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
226 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
227 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
228 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
232 mono_type_name_check_byref (MonoType *type, GString *str)
235 g_string_append_c (str, '&');
239 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
240 MonoTypeNameFormat format)
244 switch (type->type) {
245 case MONO_TYPE_ARRAY: {
246 int i, rank = type->data.array->rank;
247 MonoTypeNameFormat nested_format;
249 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
250 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
252 mono_type_get_name_recurse (
253 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
254 g_string_append_c (str, '[');
256 g_string_append_c (str, '*');
257 for (i = 1; i < rank; i++)
258 g_string_append_c (str, ',');
259 g_string_append_c (str, ']');
261 mono_type_name_check_byref (type, str);
263 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
264 _mono_type_get_assembly_name (type->data.array->eklass, str);
267 case MONO_TYPE_SZARRAY: {
268 MonoTypeNameFormat nested_format;
270 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
271 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
273 mono_type_get_name_recurse (
274 &type->data.klass->byval_arg, str, FALSE, nested_format);
275 g_string_append (str, "[]");
277 mono_type_name_check_byref (type, str);
279 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
280 _mono_type_get_assembly_name (type->data.klass, str);
283 case MONO_TYPE_PTR: {
284 MonoTypeNameFormat nested_format;
286 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
287 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
289 mono_type_get_name_recurse (
290 type->data.type, str, FALSE, nested_format);
291 g_string_append_c (str, '*');
293 mono_type_name_check_byref (type, str);
295 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
296 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
301 g_assert (type->data.generic_param->name);
302 g_string_append (str, type->data.generic_param->name);
304 mono_type_name_check_byref (type, str);
308 klass = mono_class_from_mono_type (type);
309 if (klass->nested_in) {
310 mono_type_get_name_recurse (
311 &klass->nested_in->byval_arg, str, TRUE, format);
312 if (format == MONO_TYPE_NAME_FORMAT_IL)
313 g_string_append_c (str, '.');
315 g_string_append_c (str, '+');
316 } else if (*klass->name_space) {
317 g_string_append (str, klass->name_space);
318 g_string_append_c (str, '.');
320 if (format == MONO_TYPE_NAME_FORMAT_IL) {
321 char *s = strchr (klass->name, '`');
322 int len = s ? s - klass->name : strlen (klass->name);
324 g_string_append_len (str, klass->name, len);
326 g_string_append (str, klass->name);
329 if (klass->generic_class) {
330 MonoGenericClass *gclass = klass->generic_class;
331 MonoGenericInst *inst = gclass->context.class_inst;
332 MonoTypeNameFormat nested_format;
335 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
336 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
338 if (format == MONO_TYPE_NAME_FORMAT_IL)
339 g_string_append_c (str, '<');
341 g_string_append_c (str, '[');
342 for (i = 0; i < inst->type_argc; i++) {
343 MonoType *t = inst->type_argv [i];
346 g_string_append_c (str, ',');
347 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
348 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
349 g_string_append_c (str, '[');
350 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
351 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
352 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
353 g_string_append_c (str, ']');
355 if (format == MONO_TYPE_NAME_FORMAT_IL)
356 g_string_append_c (str, '>');
358 g_string_append_c (str, ']');
359 } else if (klass->generic_container &&
360 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
361 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
364 if (format == MONO_TYPE_NAME_FORMAT_IL)
365 g_string_append_c (str, '<');
367 g_string_append_c (str, '[');
368 for (i = 0; i < klass->generic_container->type_argc; i++) {
370 g_string_append_c (str, ',');
371 g_string_append (str, klass->generic_container->type_params [i].name);
373 if (format == MONO_TYPE_NAME_FORMAT_IL)
374 g_string_append_c (str, '>');
376 g_string_append_c (str, ']');
379 mono_type_name_check_byref (type, str);
381 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
382 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
383 _mono_type_get_assembly_name (klass, str);
389 * mono_type_get_name:
391 * @format: the format for the return string.
394 * Returns: the string representation in a number of formats:
396 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
397 * returned in the formatrequired by System.Reflection, this is the
398 * inverse of mono_reflection_parse_type ().
400 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
401 * be used by the IL assembler.
403 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
405 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
408 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
412 result = g_string_new ("");
414 mono_type_get_name_recurse (type, result, FALSE, format);
416 return g_string_free (result, FALSE);
420 * mono_type_get_full_name:
423 * Returns: the string representation for type as required by System.Reflection.
424 * The inverse of mono_reflection_parse_type ().
427 mono_type_get_full_name (MonoClass *class)
429 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
433 * mono_type_get_name:
436 * Returns: the string representation for type as it would be represented in IL code.
439 mono_type_get_name (MonoType *type)
441 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
445 * mono_type_get_underlying_type:
448 * Returns: the MonoType for the underlying integer type if @type
449 * is an enum and byref is false, otherwise the type itself.
452 mono_type_get_underlying_type (MonoType *type)
454 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
455 return mono_class_enum_basetype (type->data.klass);
456 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
457 return mono_class_enum_basetype (type->data.generic_class->container_class);
462 * mono_class_is_open_constructed_type:
465 * Returns TRUE if type represents a generics open constructed type
466 * (not all the type parameters required for the instantiation have
470 mono_class_is_open_constructed_type (MonoType *t)
476 case MONO_TYPE_SZARRAY:
477 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
478 case MONO_TYPE_ARRAY:
479 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
481 return mono_class_is_open_constructed_type (t->data.type);
482 case MONO_TYPE_GENERICINST:
483 return t->data.generic_class->context.class_inst->is_open;
490 inflate_generic_type (MonoImage *image, MonoType *type, MonoGenericContext *context)
492 switch (type->type) {
493 case MONO_TYPE_MVAR: {
495 int num = type->data.generic_param->num;
496 MonoGenericInst *inst = context->method_inst;
497 if (!inst || !inst->type_argv)
499 if (num >= inst->type_argc)
500 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
503 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
504 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
505 * ->byref and ->attrs from @type are propagated to the returned type.
507 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
508 nt->byref = type->byref;
509 nt->attrs = type->attrs;
512 case MONO_TYPE_VAR: {
514 int num = type->data.generic_param->num;
515 MonoGenericInst *inst = context->class_inst;
518 if (num >= inst->type_argc)
519 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
520 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
521 nt->byref = type->byref;
522 nt->attrs = type->attrs;
525 case MONO_TYPE_SZARRAY: {
526 MonoClass *eclass = type->data.klass;
527 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
530 nt = mono_metadata_type_dup (image, type);
531 nt->data.klass = mono_class_from_mono_type (inflated);
532 mono_metadata_free_type (inflated);
535 case MONO_TYPE_ARRAY: {
536 MonoClass *eclass = type->data.array->eklass;
537 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
540 nt = mono_metadata_type_dup (image, type);
541 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
542 nt->data.array->eklass = mono_class_from_mono_type (inflated);
543 mono_metadata_free_type (inflated);
546 case MONO_TYPE_GENERICINST: {
547 MonoGenericClass *gclass = type->data.generic_class;
548 MonoGenericInst *inst;
550 if (!gclass->context.class_inst->is_open)
553 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
554 if (inst != gclass->context.class_inst)
555 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
557 if (gclass == type->data.generic_class)
560 nt = mono_metadata_type_dup (image, type);
561 nt->data.generic_class = gclass;
564 case MONO_TYPE_CLASS:
565 case MONO_TYPE_VALUETYPE: {
566 MonoClass *klass = type->data.klass;
567 MonoGenericContainer *container = klass->generic_container;
568 MonoGenericInst *inst;
569 MonoGenericClass *gclass = NULL;
575 /* We can't use context->class_inst directly, since it can have more elements */
576 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
577 if (inst == container->context.class_inst)
580 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
582 nt = mono_metadata_type_dup (image, type);
583 nt->type = MONO_TYPE_GENERICINST;
584 nt->data.generic_class = gclass;
594 mono_generic_class_get_context (MonoGenericClass *gclass)
596 return &gclass->context;
600 mono_class_get_context (MonoClass *class)
602 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
606 * mono_class_get_generic_container:
608 * Return the generic container of KLASS which should be a generic type definition.
610 MonoGenericContainer*
611 mono_class_get_generic_container (MonoClass *klass)
613 g_assert (klass->is_generic);
615 return klass->generic_container;
619 * mono_class_get_generic_class:
621 * Return the MonoGenericClass of KLASS, which should be a generic instance.
624 mono_class_get_generic_class (MonoClass *klass)
626 g_assert (klass->is_inflated);
628 return klass->generic_class;
632 * mono_class_inflate_generic_type_with_mempool:
633 * @mempool: a mempool
635 * @context: a generics context
637 * The same as mono_class_inflate_generic_type, but allocates the MonoType
638 * from mempool if it is non-NULL. If it is NULL, the MonoType is
639 * allocated on the heap and is owned by the caller.
640 * The returned type can potentially be the same as TYPE, so it should not be
641 * modified by the caller, and it should be freed using mono_metadata_free_type ().
644 mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context)
646 MonoType *inflated = NULL;
649 inflated = inflate_generic_type (image, type, context);
652 MonoType *shared = mono_metadata_get_shared_type (type);
657 return mono_metadata_type_dup (image, type);
661 mono_stats.inflated_type_count++;
666 * mono_class_inflate_generic_type:
668 * @context: a generics context
670 * If @type is a generic type and @context is not NULL, instantiate it using the
671 * generics context @context.
673 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
674 * on the heap and is owned by the caller.
677 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
679 return mono_class_inflate_generic_type_with_mempool (NULL, type, context);
683 * mono_class_inflate_generic_type_no_copy:
685 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
689 mono_class_inflate_generic_type_no_copy (MonoImage *image, MonoType *type, MonoGenericContext *context)
691 MonoType *inflated = NULL;
694 inflated = inflate_generic_type (image, type, context);
699 mono_stats.inflated_type_count++;
704 * mono_class_inflate_generic_class:
706 * Inflate the class GKLASS with CONTEXT.
709 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
714 inflated = mono_class_inflate_generic_type (&gklass->byval_arg, context);
716 res = mono_class_from_mono_type (inflated);
717 mono_metadata_free_type (inflated);
722 static MonoGenericContext
723 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
725 MonoGenericInst *class_inst = NULL;
726 MonoGenericInst *method_inst = NULL;
727 MonoGenericContext res;
729 if (context->class_inst)
730 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
732 if (context->method_inst)
733 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
735 res.class_inst = class_inst;
736 res.method_inst = method_inst;
742 * mono_class_inflate_generic_method:
743 * @method: a generic method
744 * @context: a generics context
746 * Instantiate the generic method @method using the generics context @context.
748 * Returns: the new instantiated method
751 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
753 return mono_class_inflate_generic_method_full (method, NULL, context);
757 * mono_class_inflate_generic_method:
759 * Instantiate method @method with the generic context @context.
760 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
761 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
764 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
767 MonoMethodInflated *iresult, *cached;
768 MonoMethodSignature *sig;
769 MonoGenericContext tmp_context;
770 gboolean is_mb_open = FALSE;
772 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
773 while (method->is_inflated) {
774 MonoGenericContext *method_context = mono_method_get_context (method);
775 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
777 tmp_context = inflate_generic_context (method_context, context);
778 context = &tmp_context;
780 if (mono_metadata_generic_context_equal (method_context, context))
783 method = imethod->declaring;
786 if (!method->is_generic && !method->klass->generic_container)
790 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
791 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
792 * This is opposite to the way non-SRE MethodInfos behave.
794 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
796 * void Example<T> () {
800 * In Example, the method token must be encoded as: "void Example<!!0>()"
802 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
803 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
805 * On the other hand, inflating a non-SRE generic method with its own arguments should
806 * return itself. For example:
808 * MethodInfo m = ... //m is a generic method definition
809 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
812 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
813 * what happens with regular methods.
815 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
816 * everything should behave like a regular type or method.
819 is_mb_open = method->is_generic &&
820 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
821 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
823 iresult = g_new0 (MonoMethodInflated, 1);
824 iresult->context = *context;
825 iresult->declaring = method;
826 iresult->method.method.is_mb_open = is_mb_open;
828 if (!context->method_inst && method->is_generic)
829 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
831 if (!context->class_inst) {
832 g_assert (!iresult->declaring->klass->generic_class);
833 if (iresult->declaring->klass->generic_container)
834 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
835 else if (iresult->declaring->klass->generic_class)
836 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
840 cached = mono_method_inflated_lookup (iresult, FALSE);
842 mono_loader_unlock ();
844 return (MonoMethod*)cached;
847 mono_stats.inflated_method_count++;
849 inflated_methods_size += sizeof (MonoMethodInflated);
851 sig = mono_method_signature (method);
853 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
855 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
856 iresult->method.normal.header = NULL;
859 result = (MonoMethod *) iresult;
860 result->is_inflated = TRUE;
861 result->is_generic = FALSE;
862 result->signature = NULL;
863 result->is_mb_open = is_mb_open;
865 if (!context->method_inst) {
866 /* Set the generic_container of the result to the generic_container of method */
867 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
869 if (generic_container) {
870 result->is_generic = 1;
871 mono_method_set_generic_container (result, generic_container);
875 if (!klass_hint || !klass_hint->generic_class ||
876 klass_hint->generic_class->container_class != method->klass ||
877 klass_hint->generic_class->context.class_inst != context->class_inst)
880 if (method->klass->generic_container)
881 result->klass = klass_hint;
883 if (!result->klass) {
884 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context);
885 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
887 mono_metadata_free_type (inflated);
890 mono_method_inflated_lookup (iresult, TRUE);
891 mono_loader_unlock ();
896 * mono_get_inflated_method:
898 * Obsolete. We keep it around since it's mentioned in the public API.
901 mono_get_inflated_method (MonoMethod *method)
907 * mono_method_get_context_general:
909 * @uninflated: handle uninflated methods?
911 * Returns the generic context of a method or NULL if it doesn't have
912 * one. For an inflated method that's the context stored in the
913 * method. Otherwise it's in the method's generic container or in the
914 * generic container of the method's class.
917 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
919 if (method->is_inflated) {
920 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
921 return &imethod->context;
925 if (method->is_generic)
926 return &(mono_method_get_generic_container (method)->context);
927 if (method->klass->generic_container)
928 return &method->klass->generic_container->context;
933 * mono_method_get_context:
936 * Returns the generic context for method if it's inflated, otherwise
940 mono_method_get_context (MonoMethod *method)
942 return mono_method_get_context_general (method, FALSE);
946 * mono_method_get_generic_container:
948 * Returns the generic container of METHOD, which should be a generic method definition.
949 * Returns NULL if METHOD is not a generic method definition.
950 * LOCKING: Acquires the loader lock.
952 MonoGenericContainer*
953 mono_method_get_generic_container (MonoMethod *method)
955 MonoGenericContainer *container;
957 if (!method->is_generic)
960 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
961 g_assert (container);
967 * mono_method_set_generic_container:
969 * Sets the generic container of METHOD to CONTAINER.
970 * LOCKING: Acquires the loader lock.
973 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
975 g_assert (method->is_generic);
977 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
981 * mono_class_find_enum_basetype:
982 * @class: The enum class
984 * Determine the basetype of an enum by iterating through its fields. We do this
985 * in a separate function since it is cheaper than calling mono_class_setup_fields.
988 mono_class_find_enum_basetype (MonoClass *class)
990 MonoImage *m = class->image;
991 const int top = class->field.count;
994 g_assert (class->enumtype);
997 * Fetch all the field information.
999 for (i = 0; i < top; i++){
1001 guint32 cols [MONO_FIELD_SIZE];
1002 int idx = class->field.first + i;
1003 MonoGenericContainer *container = NULL;
1006 /* class->field.first and idx points into the fieldptr table */
1007 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1008 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1009 mono_metadata_decode_value (sig, &sig);
1010 /* FIELD signature == 0x06 */
1011 g_assert (*sig == 0x06);
1012 if (class->generic_container)
1013 container = class->generic_container;
1014 else if (class->generic_class) {
1015 MonoClass *gklass = class->generic_class->container_class;
1017 container = gklass->generic_container;
1018 g_assert (container);
1020 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1023 if (class->generic_class) {
1024 //FIXME do we leak here?
1025 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1026 ftype->attrs = cols [MONO_FIELD_FLAGS];
1029 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
1037 * mono_class_setup_fields:
1038 * @class: The class to initialize
1040 * Initializes the class->fields.
1041 * LOCKING: Assumes the loader lock is held.
1044 mono_class_setup_fields (MonoClass *class)
1046 MonoImage *m = class->image;
1047 int top = class->field.count;
1048 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1049 int i, blittable = TRUE;
1050 guint32 real_size = 0;
1051 guint32 packing_size = 0;
1052 gboolean explicit_size;
1053 MonoClassField *field;
1054 MonoGenericContainer *container = NULL;
1055 MonoClass *gklass = NULL;
1057 if (class->size_inited)
1060 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1062 * This happens when a generic instance of an unfinished generic typebuilder
1063 * is used as an element type for creating an array type. We can't initialize
1064 * the fields of this class using the fields of gklass, since gklass is not
1065 * finished yet, fields could be added to it later.
1070 if (class->generic_class) {
1071 MonoClass *gklass = class->generic_class->container_class;
1072 mono_class_setup_fields (gklass);
1073 top = gklass->field.count;
1074 class->field.count = gklass->field.count;
1077 class->instance_size = 0;
1079 class->sizes.class_size = 0;
1081 if (class->parent) {
1082 /* For generic instances, class->parent might not have been initialized */
1083 mono_class_init (class->parent);
1084 if (!class->parent->size_inited)
1085 mono_class_setup_fields (class->parent);
1086 class->instance_size += class->parent->instance_size;
1087 class->min_align = class->parent->min_align;
1088 /* we use |= since it may have been set already */
1089 class->has_references |= class->parent->has_references;
1090 blittable = class->parent->blittable;
1092 class->instance_size = sizeof (MonoObject);
1093 class->min_align = 1;
1096 if (class->simd_type)
1097 class->min_align = 16;
1099 /* Get the real size */
1100 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1102 if (explicit_size) {
1103 g_assert ((packing_size & 0xfffffff0) == 0);
1104 class->packing_size = packing_size;
1105 real_size += class->instance_size;
1109 if (explicit_size && real_size) {
1110 class->instance_size = MAX (real_size, class->instance_size);
1112 class->size_inited = 1;
1113 class->blittable = blittable;
1117 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1120 /* Prevent infinite loops if the class references itself */
1121 class->size_inited = 1;
1123 class->fields = mono_image_alloc0 (class->image, sizeof (MonoClassField) * top);
1125 if (class->generic_container) {
1126 container = class->generic_container;
1127 } else if (class->generic_class) {
1128 gklass = class->generic_class->container_class;
1129 container = gklass->generic_container;
1130 g_assert (container);
1132 mono_class_setup_fields (gklass);
1134 if (gklass->exception_type) {
1135 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1141 * Fetch all the field information.
1143 for (i = 0; i < top; i++){
1144 int idx = class->field.first + i;
1145 field = &class->fields [i];
1147 field->parent = class;
1149 if (class->generic_class) {
1150 MonoClassField *gfield = &gklass->fields [i];
1152 field->name = mono_field_get_name (gfield);
1153 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1154 field->type = mono_class_inflate_generic_type_no_copy (class->image, gfield->type, mono_class_get_context (class));
1155 g_assert (field->type->attrs == gfield->type->attrs);
1156 if (mono_field_is_deleted (field))
1158 field->offset = gfield->offset;
1161 guint32 cols [MONO_FIELD_SIZE];
1163 /* class->field.first and idx points into the fieldptr table */
1164 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1165 /* The name is needed for fieldrefs */
1166 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1167 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1168 mono_metadata_decode_value (sig, &sig);
1169 /* FIELD signature == 0x06 */
1170 g_assert (*sig == 0x06);
1171 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1173 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1176 if (mono_field_is_deleted (field))
1178 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1180 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1181 field->offset = offset;
1182 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1183 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1184 class->name, mono_field_get_name (field));
1188 /* Only do these checks if we still think this type is blittable */
1189 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1190 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1193 MonoClass *field_class = mono_class_from_mono_type (field->type);
1195 mono_class_setup_fields (field_class);
1196 if (!field_class || !field_class->blittable)
1201 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1202 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1203 blittable = class->element_class->blittable;
1206 /* The def_value of fields is compute lazily during vtable creation */
1209 if (class == mono_defaults.string_class)
1212 class->blittable = blittable;
1214 if (class->enumtype && !mono_class_enum_basetype (class)) {
1215 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1218 if (explicit_size && real_size) {
1219 class->instance_size = MAX (real_size, class->instance_size);
1222 if (class->exception_type)
1224 mono_class_layout_fields (class);
1228 * mono_class_setup_fields_locking:
1229 * @class: The class to initialize
1231 * Initializes the class->fields array of fields.
1232 * Aquires the loader lock.
1235 mono_class_setup_fields_locking (MonoClass *class)
1237 mono_loader_lock ();
1238 mono_class_setup_fields (class);
1239 mono_loader_unlock ();
1243 * mono_class_has_references:
1245 * Returns whenever @klass->has_references is set, initializing it if needed.
1246 * Aquires the loader lock.
1249 mono_class_has_references (MonoClass *klass)
1251 if (klass->init_pending) {
1252 /* Be conservative */
1255 mono_class_init (klass);
1257 return klass->has_references;
1261 /* useful until we keep track of gc-references in corlib etc. */
1263 #define IS_GC_REFERENCE(t) FALSE
1265 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1269 * mono_type_get_basic_type_from_generic:
1272 * Returns a closed type corresponding to the possibly open type
1276 mono_type_get_basic_type_from_generic (MonoType *type)
1278 /* When we do generic sharing we let type variables stand for reference types. */
1279 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1280 return &mono_defaults.object_class->byval_arg;
1285 * mono_class_layout_fields:
1288 * Compute the placement of fields inside an object or struct, according to
1289 * the layout rules and set the following fields in @class:
1290 * - has_references (if the class contains instance references firled or structs that contain references)
1291 * - has_static_refs (same, but for static fields)
1292 * - instance_size (size of the object in memory)
1293 * - class_size (size needed for the static fields)
1294 * - size_inited (flag set when the instance_size is set)
1296 * LOCKING: this is supposed to be called with the loader lock held.
1299 mono_class_layout_fields (MonoClass *class)
1302 const int top = class->field.count;
1303 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1304 guint32 pass, passes, real_size;
1305 gboolean gc_aware_layout = FALSE;
1306 MonoClassField *field;
1309 * When we do generic sharing we need to have layout
1310 * information for open generic classes (either with a generic
1311 * context containing type variables or with a generic
1312 * container), so we don't return in that case anymore.
1316 * Enable GC aware auto layout: in this mode, reference
1317 * fields are grouped together inside objects, increasing collector
1319 * Requires that all classes whose layout is known to native code be annotated
1320 * with [StructLayout (LayoutKind.Sequential)]
1321 * Value types have gc_aware_layout disabled by default, as per
1322 * what the default is for other runtimes.
1324 /* corlib is missing [StructLayout] directives in many places */
1325 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1326 if (class->image != mono_defaults.corlib &&
1327 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1328 gc_aware_layout = TRUE;
1329 /* from System.dll, used in metadata/process.h */
1330 if (strcmp (class->name, "ProcessStartInfo") == 0)
1331 gc_aware_layout = FALSE;
1334 /* Compute klass->has_references */
1336 * Process non-static fields first, since static fields might recursively
1337 * refer to the class itself.
1339 for (i = 0; i < top; i++) {
1342 field = &class->fields [i];
1344 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1345 ftype = mono_type_get_underlying_type (field->type);
1346 ftype = mono_type_get_basic_type_from_generic (ftype);
1347 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1348 class->has_references = TRUE;
1352 for (i = 0; i < top; i++) {
1355 field = &class->fields [i];
1357 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1358 ftype = mono_type_get_underlying_type (field->type);
1359 ftype = mono_type_get_basic_type_from_generic (ftype);
1360 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1361 class->has_static_refs = TRUE;
1365 for (i = 0; i < top; i++) {
1368 field = &class->fields [i];
1370 ftype = mono_type_get_underlying_type (field->type);
1371 ftype = mono_type_get_basic_type_from_generic (ftype);
1372 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1373 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1374 class->has_static_refs = TRUE;
1376 class->has_references = TRUE;
1381 * Compute field layout and total size (not considering static fields)
1385 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1386 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1388 if (gc_aware_layout)
1393 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1397 real_size = class->parent->instance_size;
1399 real_size = sizeof (MonoObject);
1401 for (pass = 0; pass < passes; ++pass) {
1402 for (i = 0; i < top; i++){
1407 field = &class->fields [i];
1409 if (mono_field_is_deleted (field))
1411 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1414 ftype = mono_type_get_underlying_type (field->type);
1415 ftype = mono_type_get_basic_type_from_generic (ftype);
1416 if (gc_aware_layout) {
1417 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1426 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1427 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1428 /* This field is a hack inserted by MCS to empty structures */
1432 size = mono_type_size (field->type, &align);
1434 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1435 align = class->packing_size ? MIN (class->packing_size, align): align;
1436 /* if the field has managed references, we need to force-align it
1439 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1440 align = MAX (align, sizeof (gpointer));
1442 class->min_align = MAX (align, class->min_align);
1443 field->offset = real_size;
1444 field->offset += align - 1;
1445 field->offset &= ~(align - 1);
1446 real_size = field->offset + size;
1449 class->instance_size = MAX (real_size, class->instance_size);
1451 if (class->instance_size & (class->min_align - 1)) {
1452 class->instance_size += class->min_align - 1;
1453 class->instance_size &= ~(class->min_align - 1);
1457 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1459 for (i = 0; i < top; i++) {
1464 field = &class->fields [i];
1467 * There must be info about all the fields in a type if it
1468 * uses explicit layout.
1471 if (mono_field_is_deleted (field))
1473 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1476 size = mono_type_size (field->type, &align);
1477 class->min_align = MAX (align, class->min_align);
1480 * When we get here, field->offset is already set by the
1481 * loader (for either runtime fields or fields loaded from metadata).
1482 * The offset is from the start of the object: this works for both
1483 * classes and valuetypes.
1485 field->offset += sizeof (MonoObject);
1486 ftype = mono_type_get_underlying_type (field->type);
1487 ftype = mono_type_get_basic_type_from_generic (ftype);
1488 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1489 if (field->offset % sizeof (gpointer)) {
1490 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1497 real_size = MAX (real_size, size + field->offset);
1499 class->instance_size = MAX (real_size, class->instance_size);
1503 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1505 * For small structs, set min_align to at least the struct size to improve
1506 * performance, and since the JIT memset/memcpy code assumes this and generates
1507 * unaligned accesses otherwise. See #78990 for a testcase.
1509 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1510 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1513 class->size_inited = 1;
1516 * Compute static field layout and size
1518 for (i = 0; i < top; i++){
1522 field = &class->fields [i];
1524 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1526 if (mono_field_is_deleted (field))
1529 size = mono_type_size (field->type, &align);
1530 field->offset = class->sizes.class_size;
1531 field->offset += align - 1;
1532 field->offset &= ~(align - 1);
1533 class->sizes.class_size = field->offset + size;
1538 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1542 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1543 method->klass = class;
1544 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1545 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1546 method->signature = sig;
1547 method->name = name;
1550 if (name [0] == '.') {
1551 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1553 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1559 * mono_class_setup_methods:
1562 * Initializes the 'methods' array in the klass.
1563 * Calling this method should be avoided if possible since it allocates a lot
1564 * of long-living MonoMethod structures.
1565 * Methods belonging to an interface are assigned a sequential slot starting
1569 mono_class_setup_methods (MonoClass *class)
1572 MonoMethod **methods;
1577 mono_loader_lock ();
1579 if (class->methods) {
1580 mono_loader_unlock ();
1584 if (class->generic_class) {
1585 MonoClass *gklass = class->generic_class->container_class;
1587 mono_class_init (gklass);
1588 mono_class_setup_methods (gklass);
1590 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1591 class->method.count = gklass->method.count;
1592 methods = g_new0 (MonoMethod *, class->method.count + 1);
1594 for (i = 0; i < class->method.count; i++) {
1595 methods [i] = mono_class_inflate_generic_method_full (
1596 gklass->methods [i], class, mono_class_get_context (class));
1598 } else if (class->rank) {
1599 MonoMethod *amethod;
1600 MonoMethodSignature *sig;
1601 int count_generic = 0, first_generic = 0;
1604 class->method.count = 3 + (class->rank > 1? 2: 1);
1606 mono_class_setup_interfaces (class);
1608 if (class->interface_count) {
1609 count_generic = generic_array_methods (class);
1610 first_generic = class->method.count;
1611 class->method.count += class->interface_count * count_generic;
1614 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1616 sig = mono_metadata_signature_alloc (class->image, class->rank);
1617 sig->ret = &mono_defaults.void_class->byval_arg;
1618 sig->pinvoke = TRUE;
1619 sig->hasthis = TRUE;
1620 for (i = 0; i < class->rank; ++i)
1621 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1623 amethod = create_array_method (class, ".ctor", sig);
1624 methods [method_num++] = amethod;
1625 if (class->rank > 1) {
1626 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1627 sig->ret = &mono_defaults.void_class->byval_arg;
1628 sig->pinvoke = TRUE;
1629 sig->hasthis = TRUE;
1630 for (i = 0; i < class->rank * 2; ++i)
1631 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1633 amethod = create_array_method (class, ".ctor", sig);
1634 methods [method_num++] = amethod;
1636 /* element Get (idx11, [idx2, ...]) */
1637 sig = mono_metadata_signature_alloc (class->image, class->rank);
1638 sig->ret = &class->element_class->byval_arg;
1639 sig->pinvoke = TRUE;
1640 sig->hasthis = TRUE;
1641 for (i = 0; i < class->rank; ++i)
1642 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1643 amethod = create_array_method (class, "Get", sig);
1644 methods [method_num++] = amethod;
1645 /* element& Address (idx11, [idx2, ...]) */
1646 sig = mono_metadata_signature_alloc (class->image, class->rank);
1647 sig->ret = &class->element_class->this_arg;
1648 sig->pinvoke = TRUE;
1649 sig->hasthis = TRUE;
1650 for (i = 0; i < class->rank; ++i)
1651 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1652 amethod = create_array_method (class, "Address", sig);
1653 methods [method_num++] = amethod;
1654 /* void Set (idx11, [idx2, ...], element) */
1655 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1656 sig->ret = &mono_defaults.void_class->byval_arg;
1657 sig->pinvoke = TRUE;
1658 sig->hasthis = TRUE;
1659 for (i = 0; i < class->rank; ++i)
1660 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1661 sig->params [i] = &class->element_class->byval_arg;
1662 amethod = create_array_method (class, "Set", sig);
1663 methods [method_num++] = amethod;
1665 for (i = 0; i < class->interface_count; i++)
1666 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1668 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1669 for (i = 0; i < class->method.count; ++i) {
1670 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1671 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1675 if (MONO_CLASS_IS_INTERFACE (class))
1676 for (i = 0; i < class->method.count; ++i)
1677 methods [i]->slot = i;
1679 /* Needed because of the double-checking locking pattern */
1680 mono_memory_barrier ();
1682 class->methods = methods;
1684 if (mono_debugger_class_loaded_methods_func)
1685 mono_debugger_class_loaded_methods_func (class);
1687 mono_loader_unlock ();
1691 * mono_class_get_method_by_index:
1693 * Returns class->methods [index], initializing class->methods if neccesary.
1695 * LOCKING: Acquires the loader lock.
1698 mono_class_get_method_by_index (MonoClass *class, int index)
1700 /* Avoid calling setup_methods () if possible */
1701 if (class->generic_class && !class->methods) {
1702 MonoClass *gklass = class->generic_class->container_class;
1705 m = mono_class_inflate_generic_method_full (
1706 gklass->methods [index], class, mono_class_get_context (class));
1708 * If setup_methods () is called later for this class, no duplicates are created,
1709 * since inflate_generic_method guarantees that only one instance of a method
1710 * is created for each context.
1713 mono_class_setup_methods (class);
1714 g_assert (m == class->methods [index]);
1718 mono_class_setup_methods (class);
1719 g_assert (index >= 0 && index < class->method.count);
1720 return class->methods [index];
1725 * mono_class_get_inflated_method:
1727 * Given an inflated class CLASS and a method METHOD which should be a method of
1728 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1731 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1733 MonoClass *gklass = class->generic_class->container_class;
1736 mono_class_setup_methods (gklass);
1737 for (i = 0; i < gklass->method.count; ++i) {
1738 if (gklass->methods [i] == method) {
1740 return class->methods [i];
1742 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
1750 * mono_class_get_vtable_entry:
1752 * Returns class->vtable [offset], computing it if neccesary.
1753 * LOCKING: Acquires the loader lock.
1756 mono_class_get_vtable_entry (MonoClass *class, int offset)
1758 if (class->generic_class) {
1759 MonoClass *gklass = class->generic_class->container_class;
1760 mono_class_setup_vtable (gklass);
1761 if (gklass->vtable [offset]->wrapper_type == MONO_WRAPPER_STATIC_RGCTX_INVOKE) {
1762 MonoMethod *method = mono_marshal_method_from_wrapper (gklass->vtable [offset]);
1763 method = mono_class_inflate_generic_method_full (method, class, mono_class_get_context (class));
1764 return mono_marshal_get_static_rgctx_invoke (method);
1766 return mono_class_inflate_generic_method_full (gklass->vtable [offset], class, mono_class_get_context (class));
1770 if (class->rank == 1) {
1772 * szarrays do not overwrite any methods of Array, so we can avoid
1773 * initializing their vtables in some cases.
1775 mono_class_setup_vtable (class->parent);
1776 if (offset < class->parent->vtable_size)
1777 return class->parent->vtable [offset];
1780 mono_class_setup_vtable (class);
1781 return class->vtable [offset];
1785 mono_class_setup_properties (MonoClass *class)
1787 guint startm, endm, i, j;
1788 guint32 cols [MONO_PROPERTY_SIZE];
1789 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1790 MonoProperty *properties;
1793 if (class->ext && class->ext->properties)
1796 mono_loader_lock ();
1798 if (class->ext && class->ext->properties) {
1799 mono_loader_unlock ();
1803 mono_class_alloc_ext (class);
1805 if (class->generic_class) {
1806 MonoClass *gklass = class->generic_class->container_class;
1808 mono_class_init (gklass);
1809 mono_class_setup_properties (gklass);
1811 class->ext->property = gklass->ext->property;
1813 properties = g_new0 (MonoProperty, class->ext->property.count + 1);
1815 for (i = 0; i < class->ext->property.count; i++) {
1816 MonoProperty *prop = &properties [i];
1818 *prop = gklass->ext->properties [i];
1821 prop->get = mono_class_inflate_generic_method_full (
1822 prop->get, class, mono_class_get_context (class));
1824 prop->set = mono_class_inflate_generic_method_full (
1825 prop->set, class, mono_class_get_context (class));
1827 prop->parent = class;
1830 class->ext->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1831 class->ext->property.count = last - class->ext->property.first;
1833 if (class->ext->property.count)
1834 mono_class_setup_methods (class);
1836 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->ext->property.count);
1837 for (i = class->ext->property.first; i < last; ++i) {
1838 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1839 properties [i - class->ext->property.first].parent = class;
1840 properties [i - class->ext->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1841 properties [i - class->ext->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1843 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1844 for (j = startm; j < endm; ++j) {
1847 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1849 if (class->image->uncompressed_metadata)
1850 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1851 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1853 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1855 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1856 case METHOD_SEMANTIC_SETTER:
1857 properties [i - class->ext->property.first].set = method;
1859 case METHOD_SEMANTIC_GETTER:
1860 properties [i - class->ext->property.first].get = method;
1868 /*Flush any pending writes as we do double checked locking on class->properties */
1869 mono_memory_barrier ();
1871 /* Leave this assignment as the last op in the function */
1872 class->ext->properties = properties;
1874 mono_loader_unlock ();
1878 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1880 MonoMethod **om, **retval;
1883 for (om = methods, count = 0; *om; ++om, ++count)
1886 retval = g_new0 (MonoMethod*, count + 1);
1888 for (om = methods, count = 0; *om; ++om, ++count)
1889 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1895 mono_class_setup_events (MonoClass *class)
1897 guint startm, endm, i, j;
1898 guint32 cols [MONO_EVENT_SIZE];
1899 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1903 if (class->ext && class->ext->events)
1906 mono_loader_lock ();
1908 if (class->ext && class->ext->events) {
1909 mono_loader_unlock ();
1913 mono_class_alloc_ext (class);
1915 if (class->generic_class) {
1916 MonoClass *gklass = class->generic_class->container_class;
1917 MonoGenericContext *context;
1919 mono_class_setup_events (gklass);
1920 class->ext->event = gklass->ext->event;
1922 class->ext->events = g_new0 (MonoEvent, class->ext->event.count);
1924 if (class->ext->event.count)
1925 context = mono_class_get_context (class);
1927 for (i = 0; i < class->ext->event.count; i++) {
1928 MonoEvent *event = &class->ext->events [i];
1929 MonoEvent *gevent = &gklass->ext->events [i];
1931 event->parent = class;
1932 event->name = gevent->name;
1933 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1934 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1935 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1936 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1937 event->attrs = gevent->attrs;
1940 mono_loader_unlock ();
1944 class->ext->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1945 class->ext->event.count = last - class->ext->event.first;
1947 if (class->ext->event.count)
1948 mono_class_setup_methods (class);
1950 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->ext->event.count);
1951 for (i = class->ext->event.first; i < last; ++i) {
1952 MonoEvent *event = &events [i - class->ext->event.first];
1954 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1955 event->parent = class;
1956 event->attrs = cols [MONO_EVENT_FLAGS];
1957 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1959 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1960 for (j = startm; j < endm; ++j) {
1963 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1965 if (class->image->uncompressed_metadata)
1966 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1967 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1969 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1971 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1972 case METHOD_SEMANTIC_ADD_ON:
1973 event->add = method;
1975 case METHOD_SEMANTIC_REMOVE_ON:
1976 event->remove = method;
1978 case METHOD_SEMANTIC_FIRE:
1979 event->raise = method;
1981 case METHOD_SEMANTIC_OTHER: {
1984 if (event->other == NULL) {
1985 event->other = g_new0 (MonoMethod*, 2);
1987 while (event->other [n])
1989 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1991 event->other [n] = method;
1992 /* NULL terminated */
1993 event->other [n + 1] = NULL;
2001 /*Flush any pending writes as we do double checked locking on class->properties */
2002 mono_memory_barrier ();
2004 /* Leave this assignment as the last op in the function */
2005 class->ext->events = events;
2007 mono_loader_unlock ();
2011 * Global pool of interface IDs, represented as a bitset.
2012 * LOCKING: this is supposed to be accessed with the loader lock held.
2014 static MonoBitSet *global_interface_bitset = NULL;
2017 * mono_unload_interface_ids:
2018 * @bitset: bit set of interface IDs
2020 * When an image is unloaded, the interface IDs associated with
2021 * the image are put back in the global pool of IDs so the numbers
2025 mono_unload_interface_ids (MonoBitSet *bitset)
2027 mono_loader_lock ();
2028 mono_bitset_sub (global_interface_bitset, bitset);
2029 mono_loader_unlock ();
2033 * mono_get_unique_iid:
2036 * Assign a unique integer ID to the interface represented by @class.
2037 * The ID will positive and as small as possible.
2038 * LOCKING: this is supposed to be called with the loader lock held.
2039 * Returns: the new ID.
2042 mono_get_unique_iid (MonoClass *class)
2046 g_assert (MONO_CLASS_IS_INTERFACE (class));
2048 if (!global_interface_bitset) {
2049 global_interface_bitset = mono_bitset_new (128, 0);
2052 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2054 int old_size = mono_bitset_size (global_interface_bitset);
2055 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2056 mono_bitset_free (global_interface_bitset);
2057 global_interface_bitset = new_set;
2060 mono_bitset_set (global_interface_bitset, iid);
2061 /* set the bit also in the per-image set */
2062 if (class->image->interface_bitset) {
2063 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2064 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2065 mono_bitset_free (class->image->interface_bitset);
2066 class->image->interface_bitset = new_set;
2069 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2071 mono_bitset_set (class->image->interface_bitset, iid);
2073 if (mono_print_vtable) {
2075 char *type_name = mono_type_full_name (&class->byval_arg);
2076 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2077 generic_id = class->generic_class->context.class_inst->id;
2078 g_assert (generic_id != 0);
2082 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2086 g_assert (iid <= 65535);
2091 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
2096 mono_class_setup_interfaces (klass);
2098 for (i = 0; i < klass->interface_count; i++) {
2099 ic = klass->interfaces [i];
2102 *res = g_ptr_array_new ();
2103 g_ptr_array_add (*res, ic);
2104 mono_class_init (ic);
2106 collect_implemented_interfaces_aux (ic, res);
2111 mono_class_get_implemented_interfaces (MonoClass *klass)
2113 GPtrArray *res = NULL;
2115 collect_implemented_interfaces_aux (klass, &res);
2120 compare_interface_ids (const void *p_key, const void *p_element) {
2121 const MonoClass *key = p_key;
2122 const MonoClass *element = *(MonoClass**) p_element;
2124 return (key->interface_id - element->interface_id);
2128 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2129 MonoClass **result = bsearch (
2131 klass->interfaces_packed,
2132 klass->interface_offsets_count,
2133 sizeof (MonoClass *),
2134 compare_interface_ids);
2136 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2143 print_implemented_interfaces (MonoClass *klass) {
2144 GPtrArray *ifaces = NULL;
2146 int ancestor_level = 0;
2148 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
2149 for (i = 0; i < klass->interface_offsets_count; i++)
2150 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2151 klass->interfaces_packed [i]->interface_id,
2152 klass->interface_offsets_packed [i],
2153 klass->interfaces_packed [i]->method.count,
2154 klass->interfaces_packed [i]->name_space,
2155 klass->interfaces_packed [i]->name );
2156 printf ("Interface flags: ");
2157 for (i = 0; i <= klass->max_interface_id; i++)
2158 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2159 printf ("(%d,T)", i);
2161 printf ("(%d,F)", i);
2163 printf ("Dump interface flags:");
2164 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2165 printf (" %02X", klass->interface_bitmap [i]);
2167 while (klass != NULL) {
2168 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2169 ifaces = mono_class_get_implemented_interfaces (klass);
2171 for (i = 0; i < ifaces->len; i++) {
2172 MonoClass *ic = g_ptr_array_index (ifaces, i);
2173 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2174 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2176 mono_class_interface_offset (klass, ic),
2181 g_ptr_array_free (ifaces, TRUE);
2184 klass = klass->parent;
2189 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2192 args [0] = &arg0->byval_arg;
2194 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2198 array_class_get_if_rank (MonoClass *class, guint rank)
2200 return rank ? mono_array_class_get (class, rank) : class;
2204 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2206 valuetype_types [0] = eclass;
2207 if (eclass == mono_defaults.int16_class)
2208 valuetype_types [1] = mono_defaults.uint16_class;
2209 else if (eclass == mono_defaults.uint16_class)
2210 valuetype_types [1] = mono_defaults.int16_class;
2211 else if (eclass == mono_defaults.int32_class)
2212 valuetype_types [1] = mono_defaults.uint32_class;
2213 else if (eclass == mono_defaults.uint32_class)
2214 valuetype_types [1] = mono_defaults.int32_class;
2215 else if (eclass == mono_defaults.int64_class)
2216 valuetype_types [1] = mono_defaults.uint64_class;
2217 else if (eclass == mono_defaults.uint64_class)
2218 valuetype_types [1] = mono_defaults.int64_class;
2219 else if (eclass == mono_defaults.byte_class)
2220 valuetype_types [1] = mono_defaults.sbyte_class;
2221 else if (eclass == mono_defaults.sbyte_class)
2222 valuetype_types [1] = mono_defaults.byte_class;
2223 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2224 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2227 /* this won't be needed once bug #325495 is completely fixed
2228 * though we'll need something similar to know which interfaces to allow
2229 * in arrays when they'll be lazyly created
2231 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2232 * MS returns diferrent types based on which instance is called. For example:
2233 * object obj = new byte[10][];
2234 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2235 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2238 * Fixing this should kill quite some code, save some bits and improve compatbility.
2241 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2243 MonoClass *eclass = class->element_class;
2244 static MonoClass* generic_icollection_class = NULL;
2245 static MonoClass* generic_ienumerable_class = NULL;
2246 static MonoClass* generic_ienumerator_class = NULL;
2247 MonoClass *valuetype_types[2] = { NULL, NULL };
2248 MonoClass **interfaces = NULL;
2249 int i, interface_count, real_count, original_rank;
2251 gboolean internal_enumerator;
2252 gboolean eclass_is_valuetype;
2254 if (!mono_defaults.generic_ilist_class) {
2258 internal_enumerator = FALSE;
2259 eclass_is_valuetype = FALSE;
2260 original_rank = eclass->rank;
2261 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2262 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2264 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2266 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2267 original_rank = eclass->rank;
2268 eclass = eclass->element_class;
2269 internal_enumerator = TRUE;
2270 *is_enumerator = TRUE;
2278 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2279 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2281 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2283 if (!generic_icollection_class) {
2284 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2285 "System.Collections.Generic", "ICollection`1");
2286 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2287 "System.Collections.Generic", "IEnumerable`1");
2288 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2289 "System.Collections.Generic", "IEnumerator`1");
2292 mono_class_init (eclass);
2295 * Arrays in 2.0 need to implement a number of generic interfaces
2296 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2297 * on the element class). We collect the types needed to build the
2298 * instantiations in interfaces at intervals of 3, because 3 are
2299 * the generic interfaces needed to implement.
2301 if (eclass->valuetype) {
2302 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2304 /* IList, ICollection, IEnumerable */
2305 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2306 if (internal_enumerator) {
2308 if (valuetype_types [1])
2312 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2313 interfaces [0] = valuetype_types [0];
2314 if (valuetype_types [1])
2315 interfaces [3] = valuetype_types [1];
2317 eclass_is_valuetype = TRUE;
2320 int idepth = eclass->idepth;
2321 if (!internal_enumerator)
2323 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2324 /* we add object for interfaces and the supertypes for the other
2325 * types. The last of the supertypes is the element class itself which we
2326 * already created the explicit interfaces for (so we include it for IEnumerator
2327 * and exclude it for arrays).
2329 if (MONO_CLASS_IS_INTERFACE (eclass))
2332 interface_count += idepth;
2333 if (eclass->rank && eclass->element_class->valuetype) {
2334 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2335 if (valuetype_types [1])
2338 /* IList, ICollection, IEnumerable */
2339 interface_count *= 3;
2340 real_count = interface_count;
2341 if (internal_enumerator) {
2342 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2343 if (valuetype_types [1])
2346 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2347 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2348 interfaces [0] = mono_defaults.object_class;
2352 for (i = 0; i < idepth; i++) {
2353 mono_class_init (eclass->supertypes [i]);
2354 interfaces [j] = eclass->supertypes [i];
2358 if (all_interfaces) {
2359 for (i = 0; i < eclass->interface_offsets_count; i++) {
2360 interfaces [j] = eclass->interfaces_packed [i];
2364 for (i = 0; i < eclass->interface_count; i++) {
2365 interfaces [j] = eclass->interfaces [i];
2369 if (valuetype_types [1]) {
2370 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2375 /* instantiate the generic interfaces */
2376 for (i = 0; i < interface_count; i += 3) {
2377 MonoClass *iface = interfaces [i];
2379 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2380 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2381 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2383 if (internal_enumerator) {
2385 /* instantiate IEnumerator<iface> */
2386 for (i = 0; i < interface_count; i++) {
2387 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2389 j = interface_count;
2390 if (!eclass_is_valuetype) {
2391 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2392 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2395 for (i = 0; i < eclass->idepth; i++) {
2396 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2400 for (i = 0; i < eclass->interface_offsets_count; i++) {
2401 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2405 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2407 if (valuetype_types [1])
2408 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2412 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2413 for (i = 0; i < real_count; ++i) {
2414 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2415 g_print ("%s implements %s\n", type_name, name);
2426 find_array_interface (MonoClass *klass, const char *name)
2429 for (i = 0; i < klass->interface_count; ++i) {
2430 if (strcmp (klass->interfaces [i]->name, name) == 0)
2437 * LOCKING: this is supposed to be called with the loader lock held.
2440 setup_interface_offsets (MonoClass *class, int cur_slot)
2444 MonoClass **interfaces_full;
2445 int *interface_offsets_full;
2447 int interface_offsets_count;
2448 MonoClass **array_interfaces;
2449 int num_array_interfaces;
2450 int is_enumerator = FALSE;
2453 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2454 * implicit interfaces have the property that they are assigned the same slot in the
2455 * vtables for compatible interfaces
2457 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2459 /* compute maximum number of slots and maximum interface id */
2461 for (k = class; k ; k = k->parent) {
2462 for (i = 0; i < k->interface_count; i++) {
2463 ic = k->interfaces [i];
2466 mono_class_init (ic);
2468 if (max_iid < ic->interface_id)
2469 max_iid = ic->interface_id;
2471 ifaces = mono_class_get_implemented_interfaces (k);
2473 for (i = 0; i < ifaces->len; ++i) {
2474 ic = g_ptr_array_index (ifaces, i);
2475 if (max_iid < ic->interface_id)
2476 max_iid = ic->interface_id;
2478 g_ptr_array_free (ifaces, TRUE);
2481 for (i = 0; i < num_array_interfaces; ++i) {
2482 ic = array_interfaces [i];
2483 mono_class_init (ic);
2484 if (max_iid < ic->interface_id)
2485 max_iid = ic->interface_id;
2488 if (MONO_CLASS_IS_INTERFACE (class)) {
2489 if (max_iid < class->interface_id)
2490 max_iid = class->interface_id;
2492 class->max_interface_id = max_iid;
2493 /* compute vtable offset for interfaces */
2494 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2495 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2497 for (i = 0; i <= max_iid; i++) {
2498 interfaces_full [i] = NULL;
2499 interface_offsets_full [i] = -1;
2502 ifaces = mono_class_get_implemented_interfaces (class);
2504 for (i = 0; i < ifaces->len; ++i) {
2505 ic = g_ptr_array_index (ifaces, i);
2506 interfaces_full [ic->interface_id] = ic;
2507 interface_offsets_full [ic->interface_id] = cur_slot;
2508 cur_slot += ic->method.count;
2510 g_ptr_array_free (ifaces, TRUE);
2513 for (k = class->parent; k ; k = k->parent) {
2514 ifaces = mono_class_get_implemented_interfaces (k);
2516 for (i = 0; i < ifaces->len; ++i) {
2517 ic = g_ptr_array_index (ifaces, i);
2519 if (interface_offsets_full [ic->interface_id] == -1) {
2520 int io = mono_class_interface_offset (k, ic);
2524 interfaces_full [ic->interface_id] = ic;
2525 interface_offsets_full [ic->interface_id] = io;
2528 g_ptr_array_free (ifaces, TRUE);
2532 if (MONO_CLASS_IS_INTERFACE (class)) {
2533 interfaces_full [class->interface_id] = class;
2534 interface_offsets_full [class->interface_id] = cur_slot;
2537 if (num_array_interfaces) {
2538 if (is_enumerator) {
2539 int ienumerator_offset;
2540 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
2541 ienumerator_offset = interface_offsets_full [class->interfaces [ienumerator_idx]->interface_id];
2542 for (i = 0; i < num_array_interfaces; ++i) {
2543 ic = array_interfaces [i];
2544 interfaces_full [ic->interface_id] = ic;
2545 if (strcmp (ic->name, "IEnumerator`1") == 0)
2546 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2548 g_assert_not_reached ();
2549 /*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);*/
2552 int ilist_offset, icollection_offset, ienumerable_offset;
2553 int ilist_iface_idx = find_array_interface (class, "IList`1");
2554 int icollection_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "ICollection`1");
2555 int ienumerable_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "IEnumerable`1");
2556 ilist_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interface_id];
2557 icollection_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [icollection_iface_idx]->interface_id];
2558 ienumerable_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [ienumerable_iface_idx]->interface_id];
2559 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2560 for (i = 0; i < num_array_interfaces; ++i) {
2561 ic = array_interfaces [i];
2562 interfaces_full [ic->interface_id] = ic;
2563 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2564 interface_offsets_full [ic->interface_id] = ilist_offset;
2565 else if (strcmp (ic->name, "ICollection`1") == 0)
2566 interface_offsets_full [ic->interface_id] = icollection_offset;
2567 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2568 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2570 g_assert_not_reached ();
2571 /*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);*/
2576 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2577 if (interface_offsets_full [i] != -1) {
2578 interface_offsets_count ++;
2583 * We might get called twice: once from mono_class_init () then once from
2584 * mono_class_setup_vtable ().
2586 if (class->interfaces_packed) {
2587 g_assert (class->interface_offsets_count == interface_offsets_count);
2589 class->interface_offsets_count = interface_offsets_count;
2590 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2591 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2592 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2593 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2594 if (interface_offsets_full [i] != -1) {
2595 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2596 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2597 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2598 /*if (num_array_interfaces)
2599 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]);*/
2600 interface_offsets_count ++;
2605 g_free (interfaces_full);
2606 g_free (interface_offsets_full);
2607 g_free (array_interfaces);
2609 //printf ("JUST DONE: ");
2610 //print_implemented_interfaces (class);
2616 * Setup interface offsets for interfaces.
2618 * - class->max_interface_id
2619 * - class->interface_offsets_count
2620 * - class->interfaces_packed
2621 * - class->interface_offsets_packed
2622 * - class->interface_bitmap
2625 mono_class_setup_interface_offsets (MonoClass *class)
2627 mono_loader_lock ();
2629 setup_interface_offsets (class, 0);
2631 mono_loader_unlock ();
2635 * mono_class_setup_vtable:
2637 * Creates the generic vtable of CLASS.
2638 * Initializes the following fields in MonoClass:
2641 * Plus all the fields initialized by setup_interface_offsets ().
2642 * If there is an error during vtable construction, class->exception_type is set.
2644 * LOCKING: Acquires the loader lock.
2647 mono_class_setup_vtable (MonoClass *class)
2649 MonoMethod **overrides;
2650 MonoGenericContext *context;
2659 if (mono_debug_using_mono_debugger ())
2660 /* The debugger currently depends on this */
2661 mono_class_setup_methods (class);
2663 if (MONO_CLASS_IS_INTERFACE (class)) {
2664 /* This sets method->slot for all methods if this is an interface */
2665 mono_class_setup_methods (class);
2669 mono_loader_lock ();
2671 if (class->vtable) {
2672 mono_loader_unlock ();
2676 mono_stats.generic_vtable_count ++;
2678 if (class->generic_class) {
2679 context = mono_class_get_context (class);
2680 type_token = class->generic_class->container_class->type_token;
2682 context = (MonoGenericContext *) class->generic_container;
2683 type_token = class->type_token;
2686 if (class->image->dynamic) {
2687 if (class->generic_class) {
2688 MonoClass *gklass = class->generic_class->container_class;
2690 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2691 for (i = 0; i < onum; ++i) {
2692 MonoMethod *override = overrides [(i * 2) + 1];
2693 MonoMethod *inflated = NULL;
2696 for (j = 0; j < class->method.count; ++j) {
2697 if (gklass->methods [j] == override) {
2698 inflated = class->methods [j];
2702 g_assert (inflated);
2704 overrides [(i * 2) + 1] = inflated;
2707 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2710 /* The following call fails if there are missing methods in the type */
2711 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2715 mono_class_setup_vtable_general (class, overrides, onum);
2719 mono_loader_unlock ();
2725 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2727 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2728 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2730 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL)
2731 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2735 #define DEBUG_INTERFACE_VTABLE_CODE 0
2736 #define TRACE_INTERFACE_VTABLE_CODE 0
2737 #define VERIFY_INTERFACE_VTABLE_CODE 0
2739 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2740 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2744 #define DEBUG_INTERFACE_VTABLE(stmt)
2747 #if TRACE_INTERFACE_VTABLE_CODE
2748 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2752 #define TRACE_INTERFACE_VTABLE(stmt)
2755 #if VERIFY_INTERFACE_VTABLE_CODE
2756 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
2760 #define VERIFY_INTERFACE_VTABLE(stmt)
2764 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2766 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2770 GString *res = g_string_new ("");
2772 g_string_append_c (res, '(');
2773 for (i = 0; i < sig->param_count; ++i) {
2775 g_string_append_c (res, ',');
2776 mono_type_get_desc (res, sig->params [i], include_namespace);
2778 g_string_append (res, ")=>");
2779 if (sig->ret != NULL) {
2780 mono_type_get_desc (res, sig->ret, include_namespace);
2782 g_string_append (res, "NULL");
2785 g_string_free (res, FALSE);
2789 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2790 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2791 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2792 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2800 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) {
2801 if (strcmp (im->name, cm->name) == 0) {
2802 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2803 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2806 if (! slot_is_empty) {
2807 if (require_newslot) {
2808 if (! interface_is_explicitly_implemented_by_class) {
2809 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2812 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2813 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2817 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2820 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2821 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2822 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2823 TRACE_INTERFACE_VTABLE (printf ("]"));
2826 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2827 /* CAS - SecurityAction.InheritanceDemand on interface */
2828 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2829 mono_secman_inheritancedemand_method (cm, im);
2832 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2833 check_core_clr_override_method (class, cm, im);
2834 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2837 MonoClass *ic = im->klass;
2838 const char *ic_name_space = ic->name_space;
2839 const char *ic_name = ic->name;
2842 if (! require_newslot) {
2843 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2846 if (cm->klass->rank == 0) {
2847 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2850 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2851 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2852 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2853 TRACE_INTERFACE_VTABLE (printf ("]"));
2856 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2857 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2860 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2861 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2864 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2865 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2869 subname = strstr (cm->name, ic_name_space);
2870 if (subname != cm->name) {
2871 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2874 subname += strlen (ic_name_space);
2875 if (subname [0] != '.') {
2876 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2880 if (strstr (subname, ic_name) != subname) {
2881 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2884 subname += strlen (ic_name);
2885 if (subname [0] != '.') {
2886 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2890 if (strcmp (subname, im->name) != 0) {
2891 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2895 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2896 /* CAS - SecurityAction.InheritanceDemand on interface */
2897 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2898 mono_secman_inheritancedemand_method (cm, im);
2901 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2902 check_core_clr_override_method (class, cm, im);
2904 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2909 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2911 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2912 MonoMethod *method = key;
2913 MonoMethod *override = value;
2914 MonoClass *method_class = mono_method_get_class (method);
2915 MonoClass *override_class = mono_method_get_class (override);
2917 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2918 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2919 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2922 print_overrides (GHashTable *override_map, const char *message) {
2924 printf ("Override map \"%s\" START:\n", message);
2925 g_hash_table_foreach (override_map, foreach_override, NULL);
2926 printf ("Override map \"%s\" END.\n", message);
2928 printf ("Override map \"%s\" EMPTY.\n", message);
2932 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2933 char *full_name = mono_type_full_name (&class->byval_arg);
2937 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2939 if (print_interfaces) {
2940 print_implemented_interfaces (class);
2941 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2944 if (class->parent) {
2945 parent_size = class->parent->vtable_size;
2949 for (i = 0; i < size; ++i) {
2950 MonoMethod *cm = vtable [i];
2952 char *cm_name = mono_method_full_name (cm, TRUE);
2953 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2954 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2963 #if VERIFY_INTERFACE_VTABLE_CODE
2965 mono_method_try_get_vtable_index (MonoMethod *method)
2967 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2968 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
2969 if (imethod->declaring->is_generic)
2970 return imethod->declaring->slot;
2972 return method->slot;
2976 mono_class_verify_vtable (MonoClass *class)
2979 char *full_name = mono_type_full_name (&class->byval_arg);
2981 printf ("*** Verifying VTable of class '%s' \n", full_name);
2985 if (!class->methods)
2988 for (i = 0; i < class->method.count; ++i) {
2989 MonoMethod *cm = class->methods [i];
2992 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2996 full_name = mono_method_full_name (cm, TRUE);
2998 slot = mono_method_try_get_vtable_index (cm);
3000 if (slot >= class->vtable_size) {
3001 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3005 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot] && class->vtable [slot]->wrapper_type != MONO_WRAPPER_STATIC_RGCTX_INVOKE)) {
3006 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3007 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3008 g_free (other_name);
3011 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3018 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3020 char *method_signature;
3022 for (index = 0; index < onum; ++index) {
3023 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3024 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3026 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3027 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
3028 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
3029 g_free (method_signature);
3030 mono_class_setup_methods (class);
3031 for (index = 0; index < class->method.count; ++index) {
3032 MonoMethod *cm = class->methods [index];
3033 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3035 printf ("METHOD %s(%s)\n", cm->name, method_signature);
3036 g_free (method_signature);
3041 * LOCKING: this is supposed to be called with the loader lock held.
3044 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3047 MonoMethod **vtable;
3048 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3049 GPtrArray *ifaces = NULL;
3050 GHashTable *override_map = NULL;
3051 gboolean security_enabled = mono_is_security_manager_active ();
3053 gpointer class_iter;
3054 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3055 int first_non_interface_slot;
3061 ifaces = mono_class_get_implemented_interfaces (class);
3063 for (i = 0; i < ifaces->len; i++) {
3064 MonoClass *ic = g_ptr_array_index (ifaces, i);
3065 max_vtsize += ic->method.count;
3067 g_ptr_array_free (ifaces, TRUE);
3071 if (class->parent) {
3072 mono_class_init (class->parent);
3073 mono_class_setup_vtable (class->parent);
3074 max_vtsize += class->parent->vtable_size;
3075 cur_slot = class->parent->vtable_size;
3078 max_vtsize += class->method.count;
3080 vtable = alloca (sizeof (gpointer) * max_vtsize);
3081 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3083 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3085 cur_slot = setup_interface_offsets (class, cur_slot);
3086 max_iid = class->max_interface_id;
3087 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3089 /* Optimized version for generic instances */
3090 if (class->generic_class) {
3091 MonoClass *gklass = class->generic_class->container_class;
3092 gboolean usable = TRUE;
3094 mono_class_setup_vtable (gklass);
3095 for (i = 0; i < gklass->vtable_size; ++i)
3096 if (gklass->vtable [i] && gklass->vtable [i]->wrapper_type == MONO_WRAPPER_STATIC_RGCTX_INVOKE)
3100 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
3101 class->vtable_size = gklass->vtable_size;
3102 for (i = 0; i < gklass->vtable_size; ++i)
3103 if (gklass->vtable [i]) {
3104 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
3105 tmp [i]->slot = gklass->vtable [i]->slot;
3107 mono_memory_barrier ();
3108 class->vtable = tmp;
3110 /* Have to set method->slot for abstract virtual methods */
3111 if (class->methods && gklass->methods) {
3112 for (i = 0; i < class->method.count; ++i)
3113 if (class->methods [i]->slot == -1)
3114 class->methods [i]->slot = gklass->methods [i]->slot;
3121 if (class->parent && class->parent->vtable_size) {
3122 MonoClass *parent = class->parent;
3125 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3127 // Also inherit parent interface vtables, just as a starting point.
3128 // This is needed otherwise bug-77127.exe fails when the property methods
3129 // have different names in the iterface and the class, because for child
3130 // classes the ".override" information is not used anymore.
3131 for (i = 0; i < parent->interface_offsets_count; i++) {
3132 MonoClass *parent_interface = parent->interfaces_packed [i];
3133 int interface_offset = mono_class_interface_offset (class, parent_interface);
3135 if (interface_offset >= parent->vtable_size) {
3136 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3139 mono_class_setup_methods (parent_interface);
3140 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3141 for (j = 0; j < parent_interface->method.count; j++) {
3142 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3143 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3144 parent_interface_offset + j, parent_interface_offset, j,
3145 interface_offset + j, interface_offset, j));
3152 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3153 /* override interface methods */
3154 for (i = 0; i < onum; i++) {
3155 MonoMethod *decl = overrides [i*2];
3156 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3158 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
3159 vtable [dslot] = overrides [i*2 + 1];
3160 vtable [dslot]->slot = dslot;
3162 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3164 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3166 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3167 check_core_clr_override_method (class, vtable [dslot], decl);
3170 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3171 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3173 // Loop on all implemented interfaces...
3174 for (i = 0; i < class->interface_offsets_count; i++) {
3175 MonoClass *parent = class->parent;
3177 gboolean interface_is_explicitly_implemented_by_class;
3180 ic = class->interfaces_packed [i];
3181 ic_offset = mono_class_interface_offset (class, ic);
3183 mono_class_setup_methods (ic);
3185 // Check if this interface is explicitly implemented (instead of just inherited)
3186 if (parent != NULL) {
3187 int implemented_interfaces_index;
3188 interface_is_explicitly_implemented_by_class = FALSE;
3189 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3190 if (ic == class->interfaces [implemented_interfaces_index]) {
3191 interface_is_explicitly_implemented_by_class = TRUE;
3196 interface_is_explicitly_implemented_by_class = TRUE;
3199 // Loop on all interface methods...
3200 for (im_index = 0; im_index < ic->method.count; im_index++) {
3201 MonoMethod *im = ic->methods [im_index];
3202 int im_slot = ic_offset + im->slot;
3203 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3205 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3208 // If there is an explicit implementation, just use it right away,
3209 // otherwise look for a matching method
3210 if (override_im == NULL) {
3215 // First look for a suitable method among the class methods
3217 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3218 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)));
3219 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3220 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3221 vtable [im_slot] = cm;
3222 /* Why do we need this? */
3227 TRACE_INTERFACE_VTABLE (printf ("\n"));
3230 // If the slot is still empty, look in all the inherited virtual methods...
3231 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3232 MonoClass *parent = class->parent;
3233 // Reverse order, so that last added methods are preferred
3234 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3235 MonoMethod *cm = parent->vtable [cm_index];
3237 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));
3238 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3239 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3240 vtable [im_slot] = cm;
3241 /* Why do we need this? */
3247 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3251 g_assert (vtable [im_slot] == override_im);
3256 // If the class is not abstract, check that all its interface slots are full.
3257 // The check is done here and not directly at the end of the loop above because
3258 // it can happen (for injected generic array interfaces) that the same slot is
3259 // processed multiple times (those interfaces have overlapping slots), and it
3260 // will not always be the first pass the one that fills the slot.
3261 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3262 for (i = 0; i < class->interface_offsets_count; i++) {
3266 ic = class->interfaces_packed [i];
3267 ic_offset = mono_class_interface_offset (class, ic);
3269 for (im_index = 0; im_index < ic->method.count; im_index++) {
3270 MonoMethod *im = ic->methods [im_index];
3271 int im_slot = ic_offset + im->slot;
3273 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3276 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3277 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3278 if (vtable [im_slot] == NULL) {
3279 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3280 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3282 g_hash_table_destroy (override_map);
3289 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3291 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3293 * If the method is REUSE_SLOT, we must check in the
3294 * base class for a method to override.
3296 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3298 for (k = class->parent; k ; k = k->parent) {
3303 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3304 MonoMethodSignature *cmsig, *m1sig;
3306 cmsig = mono_method_signature (cm);
3307 m1sig = mono_method_signature (m1);
3309 if (!cmsig || !m1sig) {
3310 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3314 if (!strcmp(cm->name, m1->name) &&
3315 mono_metadata_signature_equal (cmsig, m1sig)) {
3317 /* CAS - SecurityAction.InheritanceDemand */
3318 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3319 mono_secman_inheritancedemand_method (cm, m1);
3322 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3323 check_core_clr_override_method (class, cm, m1);
3325 slot = mono_method_get_vtable_slot (m1);
3326 g_assert (cm->slot < max_vtsize);
3328 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3329 g_hash_table_insert (override_map, m1, cm);
3341 cm->slot = cur_slot++;
3343 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3344 vtable [cm->slot] = cm;
3347 /* override non interface methods */
3348 for (i = 0; i < onum; i++) {
3349 MonoMethod *decl = overrides [i*2];
3350 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3351 g_assert (decl->slot != -1);
3352 vtable [decl->slot] = overrides [i*2 + 1];
3353 overrides [i * 2 + 1]->slot = decl->slot;
3355 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3356 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3358 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3359 check_core_clr_override_method (class, vtable [decl->slot], decl);
3364 * If a method occupies more than one place in the vtable, and it is
3365 * overriden, then change the other occurances too.
3368 for (i = 0; i < max_vtsize; ++i)
3370 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3375 g_hash_table_destroy (override_map);
3378 if (class->generic_class) {
3379 MonoClass *gklass = class->generic_class->container_class;
3381 mono_class_init (gklass);
3383 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3385 /* Check that the vtable_size value computed in mono_class_init () is correct */
3386 if (class->vtable_size)
3387 g_assert (cur_slot == class->vtable_size);
3388 class->vtable_size = cur_slot;
3391 /* FIXME: only do this if the class is actually sharable */
3392 if (class->valuetype && (class->generic_class || class->generic_container) &&
3393 mono_class_generic_sharing_enabled (class)) {
3394 for (i = 0; i < max_vtsize; ++i) {
3395 if (vtable [i] && vtable [i]->wrapper_type == MONO_WRAPPER_NONE)
3396 vtable [i] = mono_marshal_get_static_rgctx_invoke (vtable [i]);
3400 /* Try to share the vtable with our parent. */
3401 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3402 mono_memory_barrier ();
3403 class->vtable = class->parent->vtable;
3405 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3406 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3407 mono_memory_barrier ();
3408 class->vtable = tmp;
3411 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3412 if (mono_print_vtable) {
3415 print_implemented_interfaces (class);
3417 for (i = 0; i <= max_iid; i++)
3418 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3421 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3422 class->vtable_size, icount);
3424 for (i = 0; i < class->vtable_size; ++i) {
3429 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3430 mono_method_full_name (cm, TRUE));
3436 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3437 class->name, max_iid);
3439 for (i = 0; i < class->interface_count; i++) {
3440 ic = class->interfaces [i];
3441 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3442 mono_class_interface_offset (class, ic),
3443 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3446 for (k = class->parent; k ; k = k->parent) {
3447 for (i = 0; i < k->interface_count; i++) {
3448 ic = k->interfaces [i];
3449 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3450 mono_class_interface_offset (class, ic),
3451 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3457 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
3461 * mono_method_get_vtable_slot:
3463 * Returns method->slot, computing it if neccesary.
3464 * LOCKING: Acquires the loader lock.
3467 mono_method_get_vtable_slot (MonoMethod *method)
3469 if (method->slot == -1) {
3470 mono_class_setup_vtable (method->klass);
3471 g_assert (method->slot != -1);
3473 return method->slot;
3477 * mono_method_get_vtable_index:
3480 * Returns the index into the runtime vtable to access the method or,
3481 * in the case of a virtual generic method, the virtual generic method
3485 mono_method_get_vtable_index (MonoMethod *method)
3487 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3488 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3489 if (imethod->declaring->is_generic)
3490 return mono_method_get_vtable_slot (imethod->declaring);
3492 return mono_method_get_vtable_slot (method);
3495 static MonoMethod *default_ghc = NULL;
3496 static MonoMethod *default_finalize = NULL;
3497 static int finalize_slot = -1;
3498 static int ghc_slot = -1;
3501 initialize_object_slots (MonoClass *class)
3506 if (class == mono_defaults.object_class) {
3507 mono_class_setup_vtable (class);
3508 for (i = 0; i < class->vtable_size; ++i) {
3509 MonoMethod *cm = class->vtable [i];
3511 if (!strcmp (cm->name, "GetHashCode"))
3513 else if (!strcmp (cm->name, "Finalize"))
3517 g_assert (ghc_slot > 0);
3518 default_ghc = class->vtable [ghc_slot];
3520 g_assert (finalize_slot > 0);
3521 default_finalize = class->vtable [finalize_slot];
3526 MonoMethod *array_method;
3528 } GenericArrayMethodInfo;
3530 static int generic_array_method_num = 0;
3531 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3534 generic_array_methods (MonoClass *class)
3536 int i, count_generic = 0;
3537 GList *list = NULL, *tmp;
3538 if (generic_array_method_num)
3539 return generic_array_method_num;
3540 mono_class_setup_methods (class->parent);
3541 for (i = 0; i < class->parent->method.count; i++) {
3542 MonoMethod *m = class->parent->methods [i];
3543 if (!strncmp (m->name, "InternalArray__", 15)) {
3545 list = g_list_prepend (list, m);
3548 list = g_list_reverse (list);
3549 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3551 for (tmp = list; tmp; tmp = tmp->next) {
3552 const char *mname, *iname;
3554 MonoMethod *m = tmp->data;
3555 generic_array_method_info [i].array_method = m;
3556 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3557 iname = "System.Collections.Generic.ICollection`1.";
3558 mname = m->name + 27;
3559 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3560 iname = "System.Collections.Generic.IEnumerable`1.";
3561 mname = m->name + 27;
3562 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3563 iname = "System.Collections.Generic.IList`1.";
3564 mname = m->name + 15;
3566 g_assert_not_reached ();
3569 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3570 strcpy (name, iname);
3571 strcpy (name + strlen (iname), mname);
3572 generic_array_method_info [i].name = name;
3575 /*g_print ("array generic methods: %d\n", count_generic);*/
3577 generic_array_method_num = count_generic;
3579 return generic_array_method_num;
3583 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3585 MonoGenericContext tmp_context;
3588 tmp_context.class_inst = NULL;
3589 tmp_context.method_inst = iface->generic_class->context.class_inst;
3590 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3592 for (i = 0; i < generic_array_method_num; i++) {
3593 MonoMethod *m = generic_array_method_info [i].array_method;
3594 MonoMethod *inflated;
3596 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3597 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3602 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3604 int len = strlen (s1) + strlen (s2) + 2;
3605 char *s = mono_image_alloc (image, len);
3608 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3609 g_assert (result == len - 1);
3615 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3617 gpointer exception_data = NULL;
3619 switch (error->exception_type) {
3620 case MONO_EXCEPTION_TYPE_LOAD:
3621 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3624 case MONO_EXCEPTION_MISSING_METHOD:
3625 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3628 case MONO_EXCEPTION_MISSING_FIELD: {
3629 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3630 const char *class_name;
3633 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3635 class_name = error->klass->name;
3637 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3640 g_free ((void*)class_name);
3644 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3647 if (error->ref_only)
3648 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.";
3650 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3652 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3656 case MONO_EXCEPTION_BAD_IMAGE:
3657 exception_data = error->msg;
3661 g_assert_not_reached ();
3664 mono_class_set_failure (class, error->exception_type, exception_data);
3668 check_core_clr_inheritance (MonoClass *class)
3670 MonoSecurityCoreCLRLevel class_level, parent_level;
3671 MonoClass *parent = class->parent;
3676 class_level = mono_security_core_clr_class_level (class);
3677 parent_level = mono_security_core_clr_class_level (parent);
3679 if (class_level < parent_level)
3680 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3685 * @class: the class to initialize
3687 * Compute the instance_size, class_size and other infos that cannot be
3688 * computed at mono_class_get() time. Also compute vtable_size if possible.
3689 * Returns TRUE on success or FALSE if there was a problem in loading
3690 * the type (incorrect assemblies, missing assemblies, methods, etc).
3692 * LOCKING: Acquires the loader lock.
3695 mono_class_init (MonoClass *class)
3698 MonoCachedClassInfo cached_info;
3699 gboolean has_cached_info;
3700 int class_init_ok = TRUE;
3704 /* Double-checking locking pattern */
3706 return class->exception_type == MONO_EXCEPTION_NONE;
3708 /*g_print ("Init class %s\n", class->name);*/
3710 /* We do everything inside the lock to prevent races */
3711 mono_loader_lock ();
3713 if (class->inited) {
3714 mono_loader_unlock ();
3715 /* Somebody might have gotten in before us */
3716 return class->exception_type == MONO_EXCEPTION_NONE;
3719 if (class->init_pending) {
3720 mono_loader_unlock ();
3721 /* this indicates a cyclic dependency */
3722 g_error ("pending init %s.%s\n", class->name_space, class->name);
3725 class->init_pending = 1;
3727 /* CAS - SecurityAction.InheritanceDemand */
3728 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3729 mono_secman_inheritancedemand_class (class, class->parent);
3732 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3733 check_core_clr_inheritance (class);
3735 mono_stats.initialized_class_count++;
3737 if (class->generic_class && !class->generic_class->is_dynamic) {
3738 MonoClass *gklass = class->generic_class->container_class;
3740 mono_stats.generic_class_count++;
3742 class->method = gklass->method;
3743 class->field = gklass->field;
3745 mono_class_init (gklass);
3746 // FIXME: Why is this needed ?
3747 mono_class_setup_methods (gklass);
3749 if (MONO_CLASS_IS_INTERFACE (class))
3750 class->interface_id = mono_get_unique_iid (class);
3753 if (class->parent && !class->parent->inited)
3754 mono_class_init (class->parent);
3756 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3758 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3759 class->nested_classes_inited = TRUE;
3762 * Computes the size used by the fields, and their locations
3764 if (has_cached_info) {
3765 class->instance_size = cached_info.instance_size;
3766 class->sizes.class_size = cached_info.class_size;
3767 class->packing_size = cached_info.packing_size;
3768 class->min_align = cached_info.min_align;
3769 class->blittable = cached_info.blittable;
3770 class->has_references = cached_info.has_references;
3771 class->has_static_refs = cached_info.has_static_refs;
3772 class->no_special_static_fields = cached_info.no_special_static_fields;
3775 if (!class->size_inited){
3776 mono_class_setup_fields (class);
3777 if (class->exception_type || mono_loader_get_last_error ()){
3778 class_init_ok = FALSE;
3783 /* Initialize arrays */
3785 class->method.count = 3 + (class->rank > 1? 2: 1);
3787 if (class->interface_count) {
3788 int count_generic = generic_array_methods (class);
3789 class->method.count += class->interface_count * count_generic;
3793 mono_class_setup_supertypes (class);
3796 initialize_object_slots (class);
3799 * Initialize the rest of the data without creating a generic vtable if possible.
3800 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3801 * also avoid computing a generic vtable.
3803 if (has_cached_info) {
3805 class->vtable_size = cached_info.vtable_size;
3806 class->has_finalize = cached_info.has_finalize;
3807 class->ghcimpl = cached_info.ghcimpl;
3808 class->has_cctor = cached_info.has_cctor;
3809 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3810 static int szarray_vtable_size = 0;
3813 if (!szarray_vtable_size) {
3814 mono_class_setup_vtable (class);
3815 szarray_vtable_size = class->vtable_size;
3817 class->vtable_size = szarray_vtable_size;
3819 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3820 MonoClass *gklass = class->generic_class->container_class;
3822 /* Generic instance case */
3823 class->ghcimpl = gklass->ghcimpl;
3824 class->has_finalize = gklass->has_finalize;
3825 class->has_cctor = gklass->has_cctor;
3827 mono_class_setup_vtable (gklass);
3828 if (gklass->exception_type)
3831 class->vtable_size = gklass->vtable_size;
3835 /* ghcimpl is not currently used
3837 if (class->parent) {
3838 MonoMethod *cmethod = class->vtable [ghc_slot];
3839 if (cmethod->is_inflated)
3840 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3841 if (cmethod == default_ghc) {
3847 /* Interfaces and valuetypes are not supposed to have finalizers */
3848 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3849 MonoMethod *cmethod = NULL;
3851 if (class->parent && class->parent->has_finalize) {
3852 class->has_finalize = 1;
3854 if (class->type_token) {
3855 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3856 } else if (class->parent) {
3857 /* FIXME: Optimize this */
3858 mono_class_setup_vtable (class);
3859 if (class->exception_type || mono_loader_get_last_error ())
3861 cmethod = class->vtable [finalize_slot];
3865 /* Check that this is really the finalizer method */
3866 mono_class_setup_vtable (class);
3867 if (class->exception_type || mono_loader_get_last_error ())
3870 class->has_finalize = 0;
3871 if (class->parent) {
3872 cmethod = class->vtable [finalize_slot];
3873 if (cmethod->is_inflated)
3874 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3875 if (cmethod != default_finalize) {
3876 class->has_finalize = 1;
3883 /* C# doesn't allow interfaces to have cctors */
3884 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3885 MonoMethod *cmethod = NULL;
3887 if (class->type_token) {
3888 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3889 /* The find_method function ignores the 'flags' argument */
3890 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3891 class->has_cctor = 1;
3893 mono_class_setup_methods (class);
3895 for (i = 0; i < class->method.count; ++i) {
3896 MonoMethod *method = class->methods [i];
3897 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3898 (strcmp (".cctor", method->name) == 0)) {
3899 class->has_cctor = 1;
3907 if (!mono_setup_vtable_in_class_init) {
3909 * This is an embedding API break, since the caller might assume that
3910 * mono_class_init () constructs a generic vtable, so vtable construction errors
3911 * are visible right after the mono_class_init (), and not after
3912 * mono_class_vtable ().
3914 if (class->parent) {
3915 /* This will compute class->parent->vtable_size for some classes */
3916 mono_class_init (class->parent);
3917 if (class->parent->exception_type || mono_loader_get_last_error ())
3919 if (!class->parent->vtable_size) {
3920 /* FIXME: Get rid of this somehow */
3921 mono_class_setup_vtable (class->parent);
3922 if (class->parent->exception_type || mono_loader_get_last_error ())
3925 setup_interface_offsets (class, class->parent->vtable_size);
3927 setup_interface_offsets (class, 0);
3930 mono_class_setup_vtable (class);
3932 if (MONO_CLASS_IS_INTERFACE (class))
3933 setup_interface_offsets (class, 0);
3936 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3937 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
3938 class_init_ok = FALSE;
3944 class_init_ok = FALSE;
3947 /* Because of the double-checking locking pattern */
3948 mono_memory_barrier ();
3950 class->init_pending = 0;
3952 if (mono_loader_get_last_error ()) {
3953 if (class->exception_type == MONO_EXCEPTION_NONE)
3954 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3956 mono_loader_clear_error ();
3959 mono_loader_unlock ();
3961 if (mono_debugger_class_init_func)
3962 mono_debugger_class_init_func (class);
3964 return class_init_ok;
3968 is_corlib_image (MonoImage *image)
3970 /* FIXME: allow the dynamic case for our compilers and with full trust */
3972 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3974 return image == mono_defaults.corlib;
3978 * LOCKING: this assumes the loader lock is held
3981 mono_class_setup_mono_type (MonoClass *class)
3983 const char *name = class->name;
3984 const char *nspace = class->name_space;
3985 gboolean is_corlib = is_corlib_image (class->image);
3987 class->this_arg.byref = 1;
3988 class->this_arg.data.klass = class;
3989 class->this_arg.type = MONO_TYPE_CLASS;
3990 class->byval_arg.data.klass = class;
3991 class->byval_arg.type = MONO_TYPE_CLASS;
3993 if (is_corlib && !strcmp (nspace, "System")) {
3994 if (!strcmp (name, "ValueType")) {
3996 * do not set the valuetype bit for System.ValueType.
3997 * class->valuetype = 1;
3999 class->blittable = TRUE;
4000 } else if (!strcmp (name, "Enum")) {
4002 * do not set the valuetype bit for System.Enum.
4003 * class->valuetype = 1;
4005 class->valuetype = 0;
4006 class->enumtype = 0;
4007 } else if (!strcmp (name, "Object")) {
4008 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4009 } else if (!strcmp (name, "String")) {
4010 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4011 } else if (!strcmp (name, "TypedReference")) {
4012 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4016 if (class->valuetype) {
4017 int t = MONO_TYPE_VALUETYPE;
4019 if (is_corlib && !strcmp (nspace, "System")) {
4022 if (!strcmp (name, "Boolean")) {
4023 t = MONO_TYPE_BOOLEAN;
4024 } else if (!strcmp(name, "Byte")) {
4026 class->blittable = TRUE;
4030 if (!strcmp (name, "Char")) {
4035 if (!strcmp (name, "Double")) {
4037 class->blittable = TRUE;
4041 if (!strcmp (name, "Int32")) {
4043 class->blittable = TRUE;
4044 } else if (!strcmp(name, "Int16")) {
4046 class->blittable = TRUE;
4047 } else if (!strcmp(name, "Int64")) {
4049 class->blittable = TRUE;
4050 } else if (!strcmp(name, "IntPtr")) {
4052 class->blittable = TRUE;
4056 if (!strcmp (name, "Single")) {
4058 class->blittable = TRUE;
4059 } else if (!strcmp(name, "SByte")) {
4061 class->blittable = TRUE;
4065 if (!strcmp (name, "UInt32")) {
4067 class->blittable = TRUE;
4068 } else if (!strcmp(name, "UInt16")) {
4070 class->blittable = TRUE;
4071 } else if (!strcmp(name, "UInt64")) {
4073 class->blittable = TRUE;
4074 } else if (!strcmp(name, "UIntPtr")) {
4076 class->blittable = TRUE;
4080 if (!strcmp (name, "TypedReference")) {
4081 t = MONO_TYPE_TYPEDBYREF;
4082 class->blittable = TRUE;
4086 if (!strcmp (name, "Void")) {
4094 class->this_arg.type = class->byval_arg.type = t;
4097 if (MONO_CLASS_IS_INTERFACE (class))
4098 class->interface_id = mono_get_unique_iid (class);
4103 * LOCKING: this assumes the loader lock is held
4106 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4108 gboolean system_namespace;
4109 gboolean is_corlib = is_corlib_image (class->image);
4111 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4113 /* if root of the hierarchy */
4114 if (system_namespace && !strcmp (class->name, "Object")) {
4115 class->parent = NULL;
4116 class->instance_size = sizeof (MonoObject);
4119 if (!strcmp (class->name, "<Module>")) {
4120 class->parent = NULL;
4121 class->instance_size = 0;
4125 if (!MONO_CLASS_IS_INTERFACE (class)) {
4126 /* Imported COM Objects always derive from __ComObject. */
4127 if (MONO_CLASS_IS_IMPORT (class)) {
4128 mono_init_com_types ();
4129 if (parent == mono_defaults.object_class)
4130 parent = mono_defaults.com_object_class;
4133 /* set the parent to something useful and safe, but mark the type as broken */
4134 parent = mono_defaults.object_class;
4135 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4138 class->parent = parent;
4140 if (parent->generic_class && !parent->name) {
4142 * If the parent is a generic instance, we may get
4143 * called before it is fully initialized, especially
4144 * before it has its name.
4149 class->marshalbyref = parent->marshalbyref;
4150 class->contextbound = parent->contextbound;
4151 class->delegate = parent->delegate;
4152 if (MONO_CLASS_IS_IMPORT (class))
4153 class->is_com_object = 1;
4155 class->is_com_object = parent->is_com_object;
4157 if (system_namespace) {
4158 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4159 class->marshalbyref = 1;
4161 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4162 class->contextbound = 1;
4164 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4165 class->delegate = 1;
4168 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4169 (strcmp (class->parent->name_space, "System") == 0)))
4170 class->valuetype = 1;
4171 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4172 class->valuetype = class->enumtype = 1;
4174 /*class->enumtype = class->parent->enumtype; */
4175 mono_class_setup_supertypes (class);
4177 /* initialize com types if COM interfaces are present */
4178 if (MONO_CLASS_IS_IMPORT (class))
4179 mono_init_com_types ();
4180 class->parent = NULL;
4186 * mono_class_setup_supertypes:
4189 * Build the data structure needed to make fast type checks work.
4190 * This currently sets two fields in @class:
4191 * - idepth: distance between @class and System.Object in the type
4193 * - supertypes: array of classes: each element has a class in the hierarchy
4194 * starting from @class up to System.Object
4196 * LOCKING: this assumes the loader lock is held
4199 mono_class_setup_supertypes (MonoClass *class)
4203 if (class->supertypes)
4206 if (class->parent && !class->parent->supertypes)
4207 mono_class_setup_supertypes (class->parent);
4209 class->idepth = class->parent->idepth + 1;
4213 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4214 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4216 if (class->parent) {
4217 class->supertypes [class->idepth - 1] = class;
4218 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4220 class->supertypes [0] = class;
4225 * mono_class_create_from_typedef:
4226 * @image: image where the token is valid
4227 * @type_token: typedef token
4229 * Create the MonoClass* representing the specified type token.
4230 * @type_token must be a TypeDef token.
4233 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4235 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4236 MonoClass *class, *parent = NULL;
4237 guint32 cols [MONO_TYPEDEF_SIZE];
4238 guint32 cols_next [MONO_TYPEDEF_SIZE];
4239 guint tidx = mono_metadata_token_index (type_token);
4240 MonoGenericContext *context = NULL;
4241 const char *name, *nspace;
4243 MonoClass **interfaces;
4244 guint32 field_last, method_last;
4245 guint32 nesting_tokeen;
4247 mono_loader_lock ();
4249 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4250 mono_loader_unlock ();
4254 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4256 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4258 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4259 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4261 class = mono_image_alloc0 (image, sizeof (MonoClass));
4264 class->name_space = nspace;
4266 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4268 class->image = image;
4269 class->type_token = type_token;
4270 class->flags = cols [MONO_TYPEDEF_FLAGS];
4272 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4274 classes_size += sizeof (MonoClass);
4277 * Check whether we're a generic type definition.
4279 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4280 if (class->generic_container) {
4281 class->is_generic = 1;
4282 class->generic_container->owner.klass = class;
4283 context = &class->generic_container->context;
4286 if (cols [MONO_TYPEDEF_EXTENDS]) {
4287 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
4289 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
4290 /*WARNING: this must satisfy mono_metadata_type_hash*/
4291 class->this_arg.byref = 1;
4292 class->this_arg.data.klass = class;
4293 class->this_arg.type = MONO_TYPE_CLASS;
4294 class->byval_arg.data.klass = class;
4295 class->byval_arg.type = MONO_TYPE_CLASS;
4297 parent = mono_class_get_full (image, parent_token, context);
4299 if (parent == NULL){
4300 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4301 mono_loader_unlock ();
4302 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4307 /* do this early so it's available for interfaces in setup_mono_type () */
4308 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4309 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4311 mono_class_setup_parent (class, parent);
4313 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4314 mono_class_setup_mono_type (class);
4316 if (!class->enumtype) {
4317 if (!mono_metadata_interfaces_from_typedef_full (
4318 image, type_token, &interfaces, &icount, context)){
4319 mono_loader_unlock ();
4320 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4324 class->interfaces = interfaces;
4325 class->interface_count = icount;
4326 class->interfaces_inited = 1;
4329 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4333 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4337 class->cast_class = class->element_class = class;
4339 /*g_print ("Load class %s\n", name);*/
4342 * Compute the field and method lists
4344 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4345 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4347 if (tt->rows > tidx){
4348 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4349 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4350 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4352 field_last = image->tables [MONO_TABLE_FIELD].rows;
4353 method_last = image->tables [MONO_TABLE_METHOD].rows;
4356 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4357 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4358 class->field.count = field_last - class->field.first;
4360 class->field.count = 0;
4362 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4363 class->method.count = method_last - class->method.first;
4365 class->method.count = 0;
4367 /* reserve space to store vector pointer in arrays */
4368 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4369 class->instance_size += 2 * sizeof (gpointer);
4370 g_assert (class->field.count == 0);
4373 if (class->enumtype) {
4374 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
4375 if (!enum_basetype) {
4376 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4377 mono_loader_unlock ();
4380 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
4384 * If we're a generic type definition, load the constraints.
4385 * We must do this after the class has been constructed to make certain recursive scenarios
4388 if (class->generic_container)
4389 mono_metadata_load_generic_param_constraints (
4390 image, type_token, class->generic_container);
4392 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4393 if (!strncmp (name, "Vector", 6))
4394 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");
4397 mono_loader_unlock ();
4399 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4404 /** is klass Nullable<T>? */
4406 mono_class_is_nullable (MonoClass *klass)
4408 return klass->generic_class != NULL &&
4409 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4413 /** if klass is T? return T */
4415 mono_class_get_nullable_param (MonoClass *klass)
4417 g_assert (mono_class_is_nullable (klass));
4418 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4422 * Create the `MonoClass' for an instantiation of a generic type.
4423 * We only do this if we actually need it.
4426 mono_generic_class_get_class (MonoGenericClass *gclass)
4428 MonoClass *klass, *gklass;
4430 mono_loader_lock ();
4431 if (gclass->cached_class) {
4432 mono_loader_unlock ();
4433 return gclass->cached_class;
4436 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4437 klass = gclass->cached_class;
4439 gklass = gclass->container_class;
4441 if (gklass->nested_in) {
4443 * FIXME: the nested type context should include everything the
4444 * nesting context should have, but it may also have additional
4445 * generic parameters...
4447 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
4448 mono_generic_class_get_context (gclass));
4451 klass->name = gklass->name;
4452 klass->name_space = gklass->name_space;
4454 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4456 klass->image = gklass->image;
4457 klass->flags = gklass->flags;
4458 klass->type_token = gklass->type_token;
4459 klass->field.count = gklass->field.count;
4461 klass->is_inflated = 1;
4462 klass->generic_class = gclass;
4464 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4465 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4466 klass->this_arg.byref = TRUE;
4467 klass->enumtype = gklass->enumtype;
4468 klass->valuetype = gklass->valuetype;
4470 klass->cast_class = klass->element_class = klass;
4472 if (mono_class_is_nullable (klass))
4473 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4476 * We're not interested in the nested classes of a generic instance.
4477 * We use the generic type definition to look for nested classes.
4480 if (gklass->parent) {
4481 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
4485 mono_class_setup_parent (klass, klass->parent);
4487 if (klass->enumtype) {
4488 klass->cast_class = gklass->cast_class;
4489 klass->element_class = gklass->element_class;
4492 if (gclass->is_dynamic) {
4495 mono_class_setup_supertypes (klass);
4497 if (klass->enumtype) {
4499 * For enums, gklass->fields might not been set, but instance_size etc. is
4500 * already set in mono_reflection_create_internal_class (). For non-enums,
4501 * these will be computed normally in mono_class_layout_fields ().
4503 klass->instance_size = gklass->instance_size;
4504 klass->sizes.class_size = gklass->sizes.class_size;
4505 klass->size_inited = 1;
4509 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4511 inflated_classes ++;
4512 inflated_classes_size += sizeof (MonoClass);
4514 mono_loader_unlock ();
4520 * LOCKING: Acquires the loader lock.
4523 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4525 MonoClass *klass, **ptr;
4528 mono_loader_lock ();
4530 if (param->pklass) {
4531 mono_loader_unlock ();
4532 return param->pklass;
4535 if (!image && param->owner) {
4537 MonoMethod *method = param->owner->owner.method;
4538 image = (method && method->klass) ? method->klass->image : NULL;
4540 MonoClass *klass = param->owner->owner.klass;
4541 // FIXME: 'klass' should not be null
4542 // But, monodis creates GenericContainers without associating a owner to it
4543 image = klass ? klass->image : NULL;
4548 image = mono_defaults.corlib;
4550 klass = mono_image_alloc0 (image, sizeof (MonoClass));
4552 classes_size += sizeof (MonoClass);
4555 klass->name = param->name;
4557 klass->name = mono_image_alloc0 (image, 16);
4558 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4560 klass->name_space = "";
4561 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4563 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4567 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4568 klass->parent = param->constraints [0];
4570 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4571 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4573 klass->parent = mono_defaults.object_class;
4575 if (count - pos > 0) {
4576 klass->interface_count = count - pos;
4577 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4578 for (i = pos; i < count; i++)
4579 klass->interfaces [i - pos] = param->constraints [i];
4583 image = mono_defaults.corlib;
4585 klass->image = image;
4587 klass->inited = TRUE;
4588 klass->cast_class = klass->element_class = klass;
4589 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4591 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4592 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4593 klass->this_arg.byref = TRUE;
4597 guint32 cols [MONO_GENERICPARAM_SIZE];
4598 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4601 if (is_mvar && param->owner->owner.method)
4602 i = mono_metadata_get_generic_param_row (image, param->owner->owner.method->token, &owner);
4603 else if (!is_mvar && param->owner->owner.klass)
4604 i = mono_metadata_get_generic_param_row (image, param->owner->owner.klass->type_token, &owner);
4607 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4609 if (cols [MONO_GENERICPARAM_NUMBER] == param->num) {
4610 klass->sizes.generic_param_token = i | MONO_TOKEN_GENERIC_PARAM;
4613 if (++i > tdef->rows)
4615 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4616 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4620 mono_class_setup_supertypes (klass);
4622 mono_memory_barrier ();
4624 param->pklass = klass;
4626 mono_loader_unlock ();
4628 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4634 mono_ptr_class_get (MonoType *type)
4637 MonoClass *el_class;
4641 el_class = mono_class_from_mono_type (type);
4642 image = el_class->image;
4644 mono_loader_lock ();
4646 if (!image->ptr_cache)
4647 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4649 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4650 mono_loader_unlock ();
4653 result = mono_image_alloc0 (image, sizeof (MonoClass));
4655 classes_size += sizeof (MonoClass);
4657 result->parent = NULL; /* no parent for PTR types */
4658 result->name_space = el_class->name_space;
4659 name = g_strdup_printf ("%s*", el_class->name);
4660 result->name = mono_image_strdup (image, name);
4663 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4665 result->image = el_class->image;
4666 result->inited = TRUE;
4667 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4668 /* Can pointers get boxed? */
4669 result->instance_size = sizeof (gpointer);
4670 result->cast_class = result->element_class = el_class;
4671 result->blittable = TRUE;
4673 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4674 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
4675 result->this_arg.byref = TRUE;
4677 mono_class_setup_supertypes (result);
4679 g_hash_table_insert (image->ptr_cache, el_class, result);
4681 mono_loader_unlock ();
4683 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4689 mono_fnptr_class_get (MonoMethodSignature *sig)
4692 static GHashTable *ptr_hash = NULL;
4694 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4696 mono_loader_lock ();
4699 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4701 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4702 mono_loader_unlock ();
4705 result = g_new0 (MonoClass, 1);
4707 result->parent = NULL; /* no parent for PTR types */
4708 result->name_space = "System";
4709 result->name = "MonoFNPtrFakeClass";
4711 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4713 result->image = mono_defaults.corlib; /* need to fix... */
4714 result->inited = TRUE;
4715 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4716 /* Can pointers get boxed? */
4717 result->instance_size = sizeof (gpointer);
4718 result->cast_class = result->element_class = result;
4719 result->blittable = TRUE;
4721 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4722 result->this_arg.data.method = result->byval_arg.data.method = sig;
4723 result->this_arg.byref = TRUE;
4724 result->blittable = TRUE;
4726 mono_class_setup_supertypes (result);
4728 g_hash_table_insert (ptr_hash, sig, result);
4730 mono_loader_unlock ();
4732 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4738 mono_class_from_mono_type (MonoType *type)
4740 switch (type->type) {
4741 case MONO_TYPE_OBJECT:
4742 return type->data.klass? type->data.klass: mono_defaults.object_class;
4743 case MONO_TYPE_VOID:
4744 return type->data.klass? type->data.klass: mono_defaults.void_class;
4745 case MONO_TYPE_BOOLEAN:
4746 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4747 case MONO_TYPE_CHAR:
4748 return type->data.klass? type->data.klass: mono_defaults.char_class;
4750 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4752 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4754 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4756 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4758 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4760 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4762 return type->data.klass? type->data.klass: mono_defaults.int_class;
4764 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4766 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4768 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4770 return type->data.klass? type->data.klass: mono_defaults.single_class;
4772 return type->data.klass? type->data.klass: mono_defaults.double_class;
4773 case MONO_TYPE_STRING:
4774 return type->data.klass? type->data.klass: mono_defaults.string_class;
4775 case MONO_TYPE_TYPEDBYREF:
4776 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4777 case MONO_TYPE_ARRAY:
4778 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4780 return mono_ptr_class_get (type->data.type);
4781 case MONO_TYPE_FNPTR:
4782 return mono_fnptr_class_get (type->data.method);
4783 case MONO_TYPE_SZARRAY:
4784 return mono_array_class_get (type->data.klass, 1);
4785 case MONO_TYPE_CLASS:
4786 case MONO_TYPE_VALUETYPE:
4787 return type->data.klass;
4788 case MONO_TYPE_GENERICINST:
4789 return mono_generic_class_get_class (type->data.generic_class);
4791 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4792 case MONO_TYPE_MVAR:
4793 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4795 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4796 g_assert_not_reached ();
4803 * mono_type_retrieve_from_typespec
4804 * @image: context where the image is created
4805 * @type_spec: typespec token
4806 * @context: the generic context used to evaluate generic instantiations in
4809 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4811 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4814 if (context && (context->class_inst || context->method_inst)) {
4815 MonoType *inflated = inflate_generic_type (NULL, t, context);
4818 *did_inflate = TRUE;
4825 * mono_class_create_from_typespec
4826 * @image: context where the image is created
4827 * @type_spec: typespec token
4828 * @context: the generic context used to evaluate generic instantiations in
4831 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4834 gboolean inflated = FALSE;
4835 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4838 ret = mono_class_from_mono_type (t);
4840 mono_metadata_free_type (t);
4845 * mono_bounded_array_class_get:
4846 * @element_class: element class
4847 * @rank: the dimension of the array class
4848 * @bounded: whenever the array has non-zero bounds
4850 * Returns: a class object describing the array with element type @element_type and
4854 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4858 MonoClass *parent = NULL;
4859 GSList *list, *rootlist;
4862 gboolean corlib_type = FALSE;
4864 g_assert (rank <= 255);
4867 /* bounded only matters for one-dimensional arrays */
4870 image = eclass->image;
4872 mono_loader_lock ();
4874 if (!image->array_cache)
4875 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4877 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4878 for (; list; list = list->next) {
4880 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4881 mono_loader_unlock ();
4887 /* for the building corlib use System.Array from it */
4888 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4889 parent = mono_class_from_name (image, "System", "Array");
4892 parent = mono_defaults.array_class;
4893 if (!parent->inited)
4894 mono_class_init (parent);
4897 class = mono_image_alloc0 (image, sizeof (MonoClass));
4899 class->image = image;
4900 class->name_space = eclass->name_space;
4901 nsize = strlen (eclass->name);
4902 name = g_malloc (nsize + 2 + rank + 1);
4903 memcpy (name, eclass->name, nsize);
4906 memset (name + nsize + 1, ',', rank - 1);
4908 name [nsize + rank] = '*';
4909 name [nsize + rank + bounded] = ']';
4910 name [nsize + rank + bounded + 1] = 0;
4911 class->name = mono_image_strdup (image, name);
4914 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4916 classes_size += sizeof (MonoClass);
4918 class->type_token = 0;
4919 /* all arrays are marked serializable and sealed, bug #42779 */
4920 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4921 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4922 class->parent = parent;
4923 class->instance_size = mono_class_instance_size (class->parent);
4925 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
4926 if (!eclass->reflection_info || eclass->wastypebuilder) {
4927 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4928 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4930 /* element_size -1 is ok as this is not an instantitable type*/
4931 class->sizes.element_size = -1;
4933 class->sizes.element_size = mono_class_array_element_size (eclass);
4935 mono_class_setup_supertypes (class);
4937 if (eclass->generic_class)
4938 mono_class_init (eclass);
4939 if (!eclass->size_inited)
4940 mono_class_setup_fields (eclass);
4941 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4945 if (eclass->enumtype)
4946 class->cast_class = eclass->element_class;
4948 class->cast_class = eclass;
4950 class->element_class = eclass;
4952 if ((rank > 1) || bounded) {
4953 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
4954 class->byval_arg.type = MONO_TYPE_ARRAY;
4955 class->byval_arg.data.array = at;
4956 at->eklass = eclass;
4958 /* FIXME: complete.... */
4960 class->byval_arg.type = MONO_TYPE_SZARRAY;
4961 class->byval_arg.data.klass = eclass;
4963 class->this_arg = class->byval_arg;
4964 class->this_arg.byref = 1;
4969 class->generic_container = eclass->generic_container;
4971 list = g_slist_append (rootlist, class);
4972 g_hash_table_insert (image->array_cache, eclass, list);
4974 mono_loader_unlock ();
4976 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4982 * mono_array_class_get:
4983 * @element_class: element class
4984 * @rank: the dimension of the array class
4986 * Returns: a class object describing the array with element type @element_type and
4990 mono_array_class_get (MonoClass *eclass, guint32 rank)
4992 return mono_bounded_array_class_get (eclass, rank, FALSE);
4996 * mono_class_instance_size:
4999 * Returns: the size of an object instance
5002 mono_class_instance_size (MonoClass *klass)
5004 if (!klass->size_inited)
5005 mono_class_init (klass);
5007 return klass->instance_size;
5011 * mono_class_min_align:
5014 * Returns: minimm alignment requirements
5017 mono_class_min_align (MonoClass *klass)
5019 if (!klass->size_inited)
5020 mono_class_init (klass);
5022 return klass->min_align;
5026 * mono_class_value_size:
5029 * This function is used for value types, and return the
5030 * space and the alignment to store that kind of value object.
5032 * Returns: the size of a value of kind @klass
5035 mono_class_value_size (MonoClass *klass, guint32 *align)
5039 /* fixme: check disable, because we still have external revereces to
5040 * mscorlib and Dummy Objects
5042 /*g_assert (klass->valuetype);*/
5044 size = mono_class_instance_size (klass) - sizeof (MonoObject);
5047 *align = klass->min_align;
5053 * mono_class_data_size:
5056 * Returns: the size of the static class data
5059 mono_class_data_size (MonoClass *klass)
5062 mono_class_init (klass);
5064 /* in arrays, sizes.class_size is unioned with element_size
5065 * and arrays have no static fields
5069 return klass->sizes.class_size;
5073 * Auxiliary routine to mono_class_get_field
5075 * Takes a field index instead of a field token.
5077 static MonoClassField *
5078 mono_class_get_field_idx (MonoClass *class, int idx)
5080 mono_class_setup_fields_locking (class);
5083 if (class->image->uncompressed_metadata) {
5085 * class->field.first points to the FieldPtr table, while idx points into the
5086 * Field table, so we have to do a search.
5088 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
5091 for (i = 0; i < class->field.count; ++i)
5092 if (mono_field_get_name (&class->fields [i]) == name)
5093 return &class->fields [i];
5094 g_assert_not_reached ();
5096 if (class->field.count) {
5097 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
5098 return &class->fields [idx - class->field.first];
5102 class = class->parent;
5108 * mono_class_get_field:
5109 * @class: the class to lookup the field.
5110 * @field_token: the field token
5112 * Returns: A MonoClassField representing the type and offset of
5113 * the field, or a NULL value if the field does not belong to this
5117 mono_class_get_field (MonoClass *class, guint32 field_token)
5119 int idx = mono_metadata_token_index (field_token);
5121 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5123 return mono_class_get_field_idx (class, idx - 1);
5127 * mono_class_get_field_from_name:
5128 * @klass: the class to lookup the field.
5129 * @name: the field name
5131 * Search the class @klass and it's parents for a field with the name @name.
5133 * Returns: the MonoClassField pointer of the named field or NULL
5136 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5140 mono_class_setup_fields_locking (klass);
5142 for (i = 0; i < klass->field.count; ++i) {
5143 if (strcmp (name, mono_field_get_name (&klass->fields [i])) == 0)
5144 return &klass->fields [i];
5146 klass = klass->parent;
5152 * mono_class_get_field_token:
5153 * @field: the field we need the token of
5155 * Get the token of a field. Note that the tokesn is only valid for the image
5156 * the field was loaded from. Don't use this function for fields in dynamic types.
5158 * Returns: the token representing the field in the image it was loaded from.
5161 mono_class_get_field_token (MonoClassField *field)
5163 MonoClass *klass = field->parent;
5166 mono_class_setup_fields_locking (klass);
5168 for (i = 0; i < klass->field.count; ++i) {
5169 if (&klass->fields [i] == field) {
5170 int idx = klass->field.first + i + 1;
5172 if (klass->image->uncompressed_metadata)
5173 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5174 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5177 klass = klass->parent;
5180 g_assert_not_reached ();
5185 mono_field_get_index (MonoClassField *field)
5187 int index = field - field->parent->fields;
5189 g_assert (index >= 0 && index < field->parent->field.count);
5195 * mono_class_get_field_default_value:
5197 * Return the default value of the field as a pointer into the metadata blob.
5200 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5203 guint32 constant_cols [MONO_CONSTANT_SIZE];
5205 MonoClass *klass = field->parent;
5207 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5209 if (!klass->ext || !klass->ext->field_def_values) {
5210 mono_loader_lock ();
5211 mono_class_alloc_ext (klass);
5212 if (!klass->ext->field_def_values)
5213 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5214 mono_loader_unlock ();
5217 field_index = mono_field_get_index (field);
5219 if (!klass->ext->field_def_values [field_index].data) {
5220 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5222 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5224 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5225 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5226 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5229 *def_type = klass->ext->field_def_values [field_index].def_type;
5230 return klass->ext->field_def_values [field_index].data;
5234 mono_class_get_event_token (MonoEvent *event)
5236 MonoClass *klass = event->parent;
5241 for (i = 0; i < klass->ext->event.count; ++i) {
5242 if (&klass->ext->events [i] == event)
5243 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
5246 klass = klass->parent;
5249 g_assert_not_reached ();
5254 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5258 gpointer iter = NULL;
5259 while ((p = mono_class_get_properties (klass, &iter))) {
5260 if (! strcmp (name, p->name))
5263 klass = klass->parent;
5269 mono_class_get_property_token (MonoProperty *prop)
5271 MonoClass *klass = prop->parent;
5275 gpointer iter = NULL;
5276 while ((p = mono_class_get_properties (klass, &iter))) {
5277 if (&klass->ext->properties [i] == prop)
5278 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
5282 klass = klass->parent;
5285 g_assert_not_reached ();
5290 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5292 const char *name, *nspace;
5294 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5296 switch (type_token & 0xff000000){
5297 case MONO_TOKEN_TYPE_DEF: {
5298 guint32 cols [MONO_TYPEDEF_SIZE];
5299 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5300 guint tidx = mono_metadata_token_index (type_token);
5302 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5303 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5304 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5305 if (strlen (nspace) == 0)
5306 return g_strdup_printf ("%s", name);
5308 return g_strdup_printf ("%s.%s", nspace, name);
5311 case MONO_TOKEN_TYPE_REF: {
5312 guint32 cols [MONO_TYPEREF_SIZE];
5313 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5315 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5316 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5317 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5318 if (strlen (nspace) == 0)
5319 return g_strdup_printf ("%s", name);
5321 return g_strdup_printf ("%s.%s", nspace, name);
5324 case MONO_TOKEN_TYPE_SPEC:
5325 return g_strdup_printf ("Typespec 0x%08x", type_token);
5327 g_assert_not_reached ();
5334 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5337 return g_strdup_printf ("DynamicAssembly %s", image->name);
5339 switch (type_token & 0xff000000){
5340 case MONO_TOKEN_TYPE_DEF:
5341 return mono_stringify_assembly_name (&image->assembly->aname);
5343 case MONO_TOKEN_TYPE_REF: {
5344 MonoAssemblyName aname;
5345 guint32 cols [MONO_TYPEREF_SIZE];
5346 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5349 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5351 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5352 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5353 case MONO_RESOLTION_SCOPE_MODULE:
5355 return g_strdup ("");
5356 case MONO_RESOLTION_SCOPE_MODULEREF:
5358 return g_strdup ("");
5359 case MONO_RESOLTION_SCOPE_TYPEREF:
5361 return g_strdup ("");
5362 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5363 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5364 return mono_stringify_assembly_name (&aname);
5366 g_assert_not_reached ();
5370 case MONO_TOKEN_TYPE_SPEC:
5372 return g_strdup ("");
5374 g_assert_not_reached ();
5381 * mono_class_get_full:
5382 * @image: the image where the class resides
5383 * @type_token: the token for the class
5384 * @context: the generic context used to evaluate generic instantiations in
5386 * Returns: the MonoClass that represents @type_token in @image
5389 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5391 MonoClass *class = NULL;
5393 if (image->dynamic) {
5394 int table = mono_metadata_token_table (type_token);
5396 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5397 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5400 return mono_lookup_dynamic_token (image, type_token, context);
5403 switch (type_token & 0xff000000){
5404 case MONO_TOKEN_TYPE_DEF:
5405 class = mono_class_create_from_typedef (image, type_token);
5407 case MONO_TOKEN_TYPE_REF:
5408 class = mono_class_from_typeref (image, type_token);
5410 case MONO_TOKEN_TYPE_SPEC:
5411 class = mono_class_create_from_typespec (image, type_token, context);
5414 g_warning ("unknown token type %x", type_token & 0xff000000);
5415 g_assert_not_reached ();
5419 char *name = mono_class_name_from_token (image, type_token);
5420 char *assembly = mono_assembly_name_from_token (image, type_token);
5421 mono_loader_set_error_type_load (name, assembly);
5429 * mono_type_get_full:
5430 * @image: the image where the type resides
5431 * @type_token: the token for the type
5432 * @context: the generic context used to evaluate generic instantiations in
5434 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5436 * Returns: the MonoType that represents @type_token in @image
5439 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5441 MonoType *type = NULL;
5442 gboolean inflated = FALSE;
5444 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5446 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5448 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5449 MonoClass *class = mono_class_get_full (image, type_token, context);
5450 return class ? mono_class_get_type (class) : NULL;
5453 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5456 char *name = mono_class_name_from_token (image, type_token);
5457 char *assembly = mono_assembly_name_from_token (image, type_token);
5459 mono_metadata_free_type (type);
5460 mono_loader_set_error_type_load (name, assembly);
5464 MonoType *tmp = type;
5465 type = mono_class_get_type (mono_class_from_mono_type (type));
5466 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5467 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5468 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5470 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5472 if (type->type != tmp->type)
5475 mono_metadata_free_type (tmp);
5482 mono_class_get (MonoImage *image, guint32 type_token)
5484 return mono_class_get_full (image, type_token, NULL);
5488 * mono_image_init_name_cache:
5490 * Initializes the class name cache stored in image->name_cache.
5492 * LOCKING: Acquires the loader lock.
5495 mono_image_init_name_cache (MonoImage *image)
5497 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5498 guint32 cols [MONO_TYPEDEF_SIZE];
5501 guint32 i, visib, nspace_index;
5502 GHashTable *name_cache2, *nspace_table;
5504 mono_loader_lock ();
5506 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5508 if (image->dynamic) {
5509 mono_loader_unlock ();
5513 /* Temporary hash table to avoid lookups in the nspace_table */
5514 name_cache2 = g_hash_table_new (NULL, NULL);
5516 for (i = 1; i <= t->rows; ++i) {
5517 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5518 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5520 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5521 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5523 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5525 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5526 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5528 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5529 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5530 if (!nspace_table) {
5531 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5532 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5533 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5536 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5539 /* Load type names from EXPORTEDTYPES table */
5541 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5542 guint32 cols [MONO_EXP_TYPE_SIZE];
5545 for (i = 0; i < t->rows; ++i) {
5546 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5547 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5548 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5550 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5551 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5552 if (!nspace_table) {
5553 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5554 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5555 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5558 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5562 g_hash_table_destroy (name_cache2);
5564 mono_loader_unlock ();
5568 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5569 const char *name, guint32 index)
5571 GHashTable *nspace_table;
5572 GHashTable *name_cache;
5574 mono_loader_lock ();
5576 if (!image->name_cache)
5577 mono_image_init_name_cache (image);
5579 name_cache = image->name_cache;
5580 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5581 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5582 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5584 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5586 mono_loader_unlock ();
5595 find_nocase (gpointer key, gpointer value, gpointer user_data)
5597 char *name = (char*)key;
5598 FindUserData *data = (FindUserData*)user_data;
5600 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5601 data->value = value;
5605 * mono_class_from_name_case:
5606 * @image: The MonoImage where the type is looked up in
5607 * @name_space: the type namespace
5608 * @name: the type short name.
5610 * Obtains a MonoClass with a given namespace and a given name which
5611 * is located in the given MonoImage. The namespace and name
5612 * lookups are case insensitive.
5615 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5617 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5618 guint32 cols [MONO_TYPEDEF_SIZE];
5623 if (image->dynamic) {
5625 FindUserData user_data;
5627 mono_loader_lock ();
5629 if (!image->name_cache)
5630 mono_image_init_name_cache (image);
5632 user_data.key = name_space;
5633 user_data.value = NULL;
5634 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5636 if (user_data.value) {
5637 GHashTable *nspace_table = (GHashTable*)user_data.value;
5639 user_data.key = name;
5640 user_data.value = NULL;
5642 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5644 if (user_data.value)
5645 token = GPOINTER_TO_UINT (user_data.value);
5648 mono_loader_unlock ();
5651 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5657 /* add a cache if needed */
5658 for (i = 1; i <= t->rows; ++i) {
5659 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5660 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5662 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5663 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5665 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5667 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5668 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5669 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5670 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5676 return_nested_in (MonoClass *class, char *nested)
5679 char *s = strchr (nested, '/');
5680 gpointer iter = NULL;
5687 while ((found = mono_class_get_nested_types (class, &iter))) {
5688 if (strcmp (found->name, nested) == 0) {
5690 return return_nested_in (found, s);
5698 search_modules (MonoImage *image, const char *name_space, const char *name)
5700 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5701 MonoImage *file_image;
5706 * The EXPORTEDTYPES table only contains public types, so have to search the
5708 * Note: image->modules contains the contents of the MODULEREF table, while
5709 * the real module list is in the FILE table.
5711 for (i = 0; i < file_table->rows; i++) {
5712 guint32 cols [MONO_FILE_SIZE];
5713 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5714 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5717 file_image = mono_image_load_file_for_image (image, i + 1);
5719 class = mono_class_from_name (file_image, name_space, name);
5729 * mono_class_from_name:
5730 * @image: The MonoImage where the type is looked up in
5731 * @name_space: the type namespace
5732 * @name: the type short name.
5734 * Obtains a MonoClass with a given namespace and a given name which
5735 * is located in the given MonoImage.
5738 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5740 GHashTable *nspace_table;
5741 MonoImage *loaded_image;
5748 if ((nested = strchr (name, '/'))) {
5749 int pos = nested - name;
5750 int len = strlen (name);
5753 memcpy (buf, name, len + 1);
5755 nested = buf + pos + 1;
5759 if (get_class_from_name) {
5760 gboolean res = get_class_from_name (image, name_space, name, &class);
5763 class = search_modules (image, name_space, name);
5765 return class ? return_nested_in (class, nested) : NULL;
5771 mono_loader_lock ();
5773 if (!image->name_cache)
5774 mono_image_init_name_cache (image);
5776 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5779 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5781 mono_loader_unlock ();
5783 if (!token && image->dynamic && image->modules) {
5784 /* Search modules as well */
5785 for (i = 0; i < image->module_count; ++i) {
5786 MonoImage *module = image->modules [i];
5788 class = mono_class_from_name (module, name_space, name);
5795 class = search_modules (image, name_space, name);
5803 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5804 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5805 guint32 cols [MONO_EXP_TYPE_SIZE];
5808 idx = mono_metadata_token_index (token);
5810 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5812 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5813 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5814 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5817 class = mono_class_from_name (loaded_image, name_space, name);
5819 return return_nested_in (class, nested);
5821 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5822 MonoAssembly **references = image->references;
5823 guint32 assembly_idx;
5825 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
5827 if (!references [assembly_idx - 1])
5828 mono_assembly_load_reference (image, assembly_idx - 1);
5829 g_assert (references == image->references);
5830 g_assert (references [assembly_idx - 1]);
5831 if (references [assembly_idx - 1] == (gpointer)-1)
5834 /* FIXME: Cycle detection */
5835 return mono_class_from_name (references [assembly_idx - 1]->image, name_space, name);
5837 g_error ("not yet implemented");
5841 token = MONO_TOKEN_TYPE_DEF | token;
5843 class = mono_class_get (image, token);
5845 return return_nested_in (class, nested);
5850 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5851 gboolean check_interfaces)
5853 g_assert (klassc->idepth > 0);
5854 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5855 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5857 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5860 for (i = 0; i < klass->interface_count; i ++) {
5861 MonoClass *ic = klass->interfaces [i];
5866 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5871 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5874 if (klassc == mono_defaults.object_class)
5881 mono_class_has_variant_generic_params (MonoClass *klass)
5884 MonoGenericContainer *container;
5886 if (!klass->generic_class)
5889 container = klass->generic_class->container_class->generic_container;
5891 for (i = 0; i < container->type_argc; ++i)
5892 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5899 * mono_class_is_assignable_from:
5900 * @klass: the class to be assigned to
5901 * @oklass: the source class
5903 * Return: true if an instance of object oklass can be assigned to an
5904 * instance of object @klass
5907 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5910 mono_class_init (klass);
5912 if (!oklass->inited)
5913 mono_class_init (oklass);
5915 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5916 return klass == oklass;
5918 if (MONO_CLASS_IS_INTERFACE (klass)) {
5919 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5922 /* interface_offsets might not be set for dynamic classes */
5923 if (oklass->reflection_info && !oklass->interface_bitmap)
5925 * oklass might be a generic type parameter but they have
5926 * interface_offsets set.
5928 return mono_reflection_call_is_assignable_to (oklass, klass);
5929 if (!oklass->interface_bitmap)
5930 /* Happens with generic instances of not-yet created dynamic types */
5932 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5935 if (mono_class_has_variant_generic_params (klass)) {
5936 if (oklass->generic_class) {
5938 gboolean match = FALSE;
5939 MonoClass *container_class1 = klass->generic_class->container_class;
5940 MonoClass *container_class2 = oklass->generic_class->container_class;
5943 * Check whenever the generic definition of oklass implements the
5944 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5945 * here since the relevant tables are not set up.
5947 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5948 if ((container_class2->interfaces_packed [i] == container_class1) || (container_class2->interfaces_packed [i]->generic_class && (container_class2->interfaces_packed [i]->generic_class->container_class == container_class1)))
5952 MonoGenericContainer *container;
5954 container = klass->generic_class->container_class->generic_container;
5957 for (i = 0; i < container->type_argc; ++i) {
5958 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5959 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5961 if (param1_class->valuetype != param2_class->valuetype) {
5966 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5967 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5969 if (param1_class != param2_class) {
5970 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5972 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5986 } else if (klass->rank) {
5987 MonoClass *eclass, *eoclass;
5989 if (oklass->rank != klass->rank)
5992 /* vectors vs. one dimensional arrays */
5993 if (oklass->byval_arg.type != klass->byval_arg.type)
5996 eclass = klass->cast_class;
5997 eoclass = oklass->cast_class;
6000 * a is b does not imply a[] is b[] when a is a valuetype, and
6001 * b is a reference type.
6004 if (eoclass->valuetype) {
6005 if ((eclass == mono_defaults.enum_class) ||
6006 (eclass == mono_defaults.enum_class->parent) ||
6007 (eclass == mono_defaults.object_class))
6011 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6012 } else if (mono_class_is_nullable (klass)) {
6013 if (mono_class_is_nullable (oklass))
6014 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6016 return mono_class_is_assignable_from (klass->cast_class, oklass);
6017 } else if (klass == mono_defaults.object_class)
6020 return mono_class_has_parent (oklass, klass);
6024 * mono_class_get_cctor:
6025 * @klass: A MonoClass pointer
6027 * Returns: the static constructor of @klass if it exists, NULL otherwise.
6030 mono_class_get_cctor (MonoClass *klass)
6032 MonoCachedClassInfo cached_info;
6034 if (!klass->has_cctor)
6037 if (mono_class_get_cached_class_info (klass, &cached_info))
6038 return mono_get_method (klass->image, cached_info.cctor_token, klass);
6040 if (klass->generic_class && !klass->methods)
6041 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
6043 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
6047 * mono_class_get_finalizer:
6048 * @klass: The MonoClass pointer
6050 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
6053 mono_class_get_finalizer (MonoClass *klass)
6055 MonoCachedClassInfo cached_info;
6058 mono_class_init (klass);
6059 if (!klass->has_finalize)
6062 if (mono_class_get_cached_class_info (klass, &cached_info))
6063 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
6065 mono_class_setup_vtable (klass);
6066 return klass->vtable [finalize_slot];
6071 * mono_class_needs_cctor_run:
6072 * @klass: the MonoClass pointer
6073 * @caller: a MonoMethod describing the caller
6075 * Determines whenever the class has a static constructor and whenever it
6076 * needs to be called when executing CALLER.
6079 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
6083 method = mono_class_get_cctor (klass);
6085 return (method == caller) ? FALSE : TRUE;
6091 * mono_class_array_element_size:
6094 * Returns: the number of bytes an element of type @klass
6095 * uses when stored into an array.
6098 mono_class_array_element_size (MonoClass *klass)
6100 MonoType *type = &klass->byval_arg;
6103 switch (type->type) {
6106 case MONO_TYPE_BOOLEAN:
6110 case MONO_TYPE_CHAR:
6119 case MONO_TYPE_CLASS:
6120 case MONO_TYPE_STRING:
6121 case MONO_TYPE_OBJECT:
6122 case MONO_TYPE_SZARRAY:
6123 case MONO_TYPE_ARRAY:
6125 case MONO_TYPE_MVAR:
6126 return sizeof (gpointer);
6131 case MONO_TYPE_VALUETYPE:
6132 if (type->data.klass->enumtype) {
6133 type = mono_class_enum_basetype (type->data.klass);
6134 klass = klass->element_class;
6137 return mono_class_instance_size (klass) - sizeof (MonoObject);
6138 case MONO_TYPE_GENERICINST:
6139 type = &type->data.generic_class->container_class->byval_arg;
6142 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6148 * mono_array_element_size:
6149 * @ac: pointer to a #MonoArrayClass
6151 * Returns: the size of single array element.
6154 mono_array_element_size (MonoClass *ac)
6156 g_assert (ac->rank);
6157 return ac->sizes.element_size;
6161 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6162 MonoGenericContext *context)
6164 if (image->dynamic) {
6165 MonoClass *tmp_handle_class;
6166 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6168 g_assert (tmp_handle_class);
6170 *handle_class = tmp_handle_class;
6172 if (tmp_handle_class == mono_defaults.typehandle_class)
6173 return &((MonoClass*)obj)->byval_arg;
6178 switch (token & 0xff000000) {
6179 case MONO_TOKEN_TYPE_DEF:
6180 case MONO_TOKEN_TYPE_REF:
6181 case MONO_TOKEN_TYPE_SPEC: {
6184 *handle_class = mono_defaults.typehandle_class;
6185 type = mono_type_get_full (image, token, context);
6188 mono_class_init (mono_class_from_mono_type (type));
6189 /* We return a MonoType* as handle */
6192 case MONO_TOKEN_FIELD_DEF: {
6194 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6196 *handle_class = mono_defaults.fieldhandle_class;
6197 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6200 mono_class_init (class);
6201 return mono_class_get_field (class, token);
6203 case MONO_TOKEN_METHOD_DEF:
6204 case MONO_TOKEN_METHOD_SPEC: {
6206 meth = mono_get_method_full (image, token, NULL, context);
6208 *handle_class = mono_defaults.methodhandle_class;
6211 case MONO_TOKEN_MEMBER_REF: {
6212 guint32 cols [MONO_MEMBERREF_SIZE];
6214 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6215 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6216 mono_metadata_decode_blob_size (sig, &sig);
6217 if (*sig == 0x6) { /* it's a field */
6219 MonoClassField *field;
6220 field = mono_field_from_token (image, token, &klass, context);
6222 *handle_class = mono_defaults.fieldhandle_class;
6226 meth = mono_get_method_full (image, token, NULL, context);
6228 *handle_class = mono_defaults.methodhandle_class;
6233 g_warning ("Unknown token 0x%08x in ldtoken", token);
6240 * This function might need to call runtime functions so it can't be part
6241 * of the metadata library.
6243 static MonoLookupDynamicToken lookup_dynamic = NULL;
6246 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6248 lookup_dynamic = func;
6252 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6254 MonoClass *handle_class;
6256 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6260 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6262 return lookup_dynamic (image, token, valid_token, handle_class, context);
6265 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6268 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6270 get_cached_class_info = func;
6274 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6276 if (!get_cached_class_info)
6279 return get_cached_class_info (klass, res);
6283 mono_install_get_class_from_name (MonoGetClassFromName func)
6285 get_class_from_name = func;
6289 mono_class_get_image (MonoClass *klass)
6291 return klass->image;
6295 * mono_class_get_element_class:
6296 * @klass: the MonoClass to act on
6298 * Returns: the element class of an array or an enumeration.
6301 mono_class_get_element_class (MonoClass *klass)
6303 return klass->element_class;
6307 * mono_class_is_valuetype:
6308 * @klass: the MonoClass to act on
6310 * Returns: true if the MonoClass represents a ValueType.
6313 mono_class_is_valuetype (MonoClass *klass)
6315 return klass->valuetype;
6319 * mono_class_is_enum:
6320 * @klass: the MonoClass to act on
6322 * Returns: true if the MonoClass represents an enumeration.
6325 mono_class_is_enum (MonoClass *klass)
6327 return klass->enumtype;
6331 * mono_class_enum_basetype:
6332 * @klass: the MonoClass to act on
6334 * Returns: the underlying type representation for an enumeration.
6337 mono_class_enum_basetype (MonoClass *klass)
6339 if (klass->element_class == klass)
6343 return &klass->element_class->byval_arg;
6347 * mono_class_get_parent
6348 * @klass: the MonoClass to act on
6350 * Returns: the parent class for this class.
6353 mono_class_get_parent (MonoClass *klass)
6355 return klass->parent;
6359 * mono_class_get_nesting_type;
6360 * @klass: the MonoClass to act on
6362 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6365 mono_class_get_nesting_type (MonoClass *klass)
6367 return klass->nested_in;
6371 * mono_class_get_rank:
6372 * @klass: the MonoClass to act on
6374 * Returns: the rank for the array (the number of dimensions).
6377 mono_class_get_rank (MonoClass *klass)
6383 * mono_class_get_flags:
6384 * @klass: the MonoClass to act on
6386 * The type flags from the TypeDef table from the metadata.
6387 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6390 * Returns: the flags from the TypeDef table.
6393 mono_class_get_flags (MonoClass *klass)
6395 return klass->flags;
6399 * mono_class_get_name
6400 * @klass: the MonoClass to act on
6402 * Returns: the name of the class.
6405 mono_class_get_name (MonoClass *klass)
6411 * mono_class_get_namespace:
6412 * @klass: the MonoClass to act on
6414 * Returns: the namespace of the class.
6417 mono_class_get_namespace (MonoClass *klass)
6419 return klass->name_space;
6423 * mono_class_get_type:
6424 * @klass: the MonoClass to act on
6426 * This method returns the internal Type representation for the class.
6428 * Returns: the MonoType from the class.
6431 mono_class_get_type (MonoClass *klass)
6433 return &klass->byval_arg;
6437 * mono_class_get_type_token
6438 * @klass: the MonoClass to act on
6440 * This method returns type token for the class.
6442 * Returns: the type token for the class.
6445 mono_class_get_type_token (MonoClass *klass)
6447 return klass->type_token;
6451 * mono_class_get_byref_type:
6452 * @klass: the MonoClass to act on
6457 mono_class_get_byref_type (MonoClass *klass)
6459 return &klass->this_arg;
6463 * mono_class_num_fields:
6464 * @klass: the MonoClass to act on
6466 * Returns: the number of static and instance fields in the class.
6469 mono_class_num_fields (MonoClass *klass)
6471 return klass->field.count;
6475 * mono_class_num_methods:
6476 * @klass: the MonoClass to act on
6478 * Returns: the number of methods in the class.
6481 mono_class_num_methods (MonoClass *klass)
6483 return klass->method.count;
6487 * mono_class_num_properties
6488 * @klass: the MonoClass to act on
6490 * Returns: the number of properties in the class.
6493 mono_class_num_properties (MonoClass *klass)
6495 mono_class_setup_properties (klass);
6497 return klass->ext->property.count;
6501 * mono_class_num_events:
6502 * @klass: the MonoClass to act on
6504 * Returns: the number of events in the class.
6507 mono_class_num_events (MonoClass *klass)
6509 mono_class_setup_events (klass);
6511 return klass->ext->event.count;
6515 * mono_class_get_fields:
6516 * @klass: the MonoClass to act on
6518 * This routine is an iterator routine for retrieving the fields in a class.
6520 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6521 * iterate over all of the elements. When no more values are
6522 * available, the return value is NULL.
6524 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6527 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6529 MonoClassField* field;
6533 mono_class_setup_fields_locking (klass);
6534 if (klass->exception_type)
6536 /* start from the first */
6537 if (klass->field.count) {
6538 return *iter = &klass->fields [0];
6546 if (field < &klass->fields [klass->field.count]) {
6547 return *iter = field;
6553 * mono_class_get_methods
6554 * @klass: the MonoClass to act on
6556 * This routine is an iterator routine for retrieving the fields in a class.
6558 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6559 * iterate over all of the elements. When no more values are
6560 * available, the return value is NULL.
6562 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6565 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6567 MonoMethod** method;
6571 mono_class_init (klass);
6573 mono_class_setup_methods (klass);
6574 /* start from the first */
6575 if (klass->method.count) {
6576 *iter = &klass->methods [0];
6577 return klass->methods [0];
6585 if (method < &klass->methods [klass->method.count]) {
6593 * mono_class_get_virtual_methods:
6595 * Iterate over the virtual methods of KLASS.
6597 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6600 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6602 MonoMethod** method;
6605 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6607 mono_class_setup_methods (klass);
6608 /* start from the first */
6609 method = &klass->methods [0];
6614 while (method < &klass->methods [klass->method.count]) {
6615 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6619 if (method < &klass->methods [klass->method.count]) {
6626 /* Search directly in metadata to avoid calling setup_methods () */
6627 MonoMethod *res = NULL;
6633 start_index = GPOINTER_TO_UINT (*iter);
6636 for (i = start_index; i < klass->method.count; ++i) {
6637 guint32 cols [MONO_METHOD_SIZE];
6639 /* class->method.first points into the methodptr table */
6640 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6642 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6646 if (i < klass->method.count) {
6647 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6648 /* Add 1 here so the if (*iter) check fails */
6649 *iter = GUINT_TO_POINTER (i + 1);
6658 * mono_class_get_properties:
6659 * @klass: the MonoClass to act on
6661 * This routine is an iterator routine for retrieving the properties in a class.
6663 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6664 * iterate over all of the elements. When no more values are
6665 * available, the return value is NULL.
6667 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6670 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6672 MonoProperty* property;
6676 mono_class_init (klass);
6678 mono_class_setup_properties (klass);
6679 /* start from the first */
6680 if (klass->ext->property.count) {
6681 return *iter = &klass->ext->properties [0];
6689 if (property < &klass->ext->properties [klass->ext->property.count]) {
6690 return *iter = property;
6696 * mono_class_get_events:
6697 * @klass: the MonoClass to act on
6699 * This routine is an iterator routine for retrieving the properties in a class.
6701 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6702 * iterate over all of the elements. When no more values are
6703 * available, the return value is NULL.
6705 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6708 mono_class_get_events (MonoClass* klass, gpointer *iter)
6714 mono_class_init (klass);
6716 mono_class_setup_events (klass);
6717 /* start from the first */
6718 if (klass->ext->event.count) {
6719 return *iter = &klass->ext->events [0];
6727 if (event < &klass->ext->events [klass->ext->event.count]) {
6728 return *iter = event;
6734 * mono_class_get_interfaces
6735 * @klass: the MonoClass to act on
6737 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6739 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6740 * iterate over all of the elements. When no more values are
6741 * available, the return value is NULL.
6743 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6746 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6753 mono_class_init (klass);
6754 if (!klass->interfaces_inited)
6755 mono_class_setup_interfaces (klass);
6756 /* start from the first */
6757 if (klass->interface_count) {
6758 *iter = &klass->interfaces [0];
6759 return klass->interfaces [0];
6767 if (iface < &klass->interfaces [klass->interface_count]) {
6775 * mono_class_get_nested_types
6776 * @klass: the MonoClass to act on
6778 * This routine is an iterator routine for retrieving the nested types of a class.
6779 * This works only if @klass is non-generic, or a generic type definition.
6781 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6782 * iterate over all of the elements. When no more values are
6783 * available, the return value is NULL.
6785 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6788 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6796 mono_class_init (klass);
6797 if (!klass->nested_classes_inited) {
6798 if (!klass->type_token)
6799 klass->nested_classes_inited = TRUE;
6800 mono_loader_lock ();
6801 if (!klass->nested_classes_inited) {
6802 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
6805 guint32 cols [MONO_NESTED_CLASS_SIZE];
6806 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
6807 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
6808 mono_class_alloc_ext (klass);
6809 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
6811 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
6814 mono_memory_barrier ();
6815 klass->nested_classes_inited = TRUE;
6816 mono_loader_unlock ();
6820 /* start from the first */
6821 if (klass->ext && klass->ext->nested_classes) {
6822 *iter = klass->ext->nested_classes;
6823 return klass->ext->nested_classes->data;
6825 /* no nested types */
6839 * mono_field_get_name:
6840 * @field: the MonoClassField to act on
6842 * Returns: the name of the field.
6845 mono_field_get_name (MonoClassField *field)
6851 * mono_field_get_type:
6852 * @field: the MonoClassField to act on
6854 * Returns: MonoType of the field.
6857 mono_field_get_type (MonoClassField *field)
6863 * mono_field_get_type:
6864 * @field: the MonoClassField to act on
6866 * Returns: MonoClass where the field was defined.
6869 mono_field_get_parent (MonoClassField *field)
6871 return field->parent;
6875 * mono_field_get_flags;
6876 * @field: the MonoClassField to act on
6878 * The metadata flags for a field are encoded using the
6879 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6881 * Returns: the flags for the field.
6884 mono_field_get_flags (MonoClassField *field)
6886 return field->type->attrs;
6890 * mono_field_get_offset;
6891 * @field: the MonoClassField to act on
6893 * Returns: the field offset.
6896 mono_field_get_offset (MonoClassField *field)
6898 return field->offset;
6902 mono_field_get_rva (MonoClassField *field)
6906 MonoClass *klass = field->parent;
6908 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
6910 if (!klass->ext || !klass->ext->field_def_values) {
6911 mono_loader_lock ();
6912 mono_class_alloc_ext (klass);
6913 if (!klass->ext->field_def_values)
6914 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
6915 mono_loader_unlock ();
6918 field_index = mono_field_get_index (field);
6920 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
6921 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
6923 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
6924 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
6927 return klass->ext->field_def_values [field_index].data;
6931 * mono_field_get_data;
6932 * @field: the MonoClassField to act on
6934 * Returns: pointer to the metadata constant value or to the field
6935 * data if it has an RVA flag.
6938 mono_field_get_data (MonoClassField *field)
6940 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
6941 MonoTypeEnum def_type;
6943 return mono_class_get_field_default_value (field, &def_type);
6944 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
6945 return mono_field_get_rva (field);
6952 * mono_property_get_name:
6953 * @prop: the MonoProperty to act on
6955 * Returns: the name of the property
6958 mono_property_get_name (MonoProperty *prop)
6964 * mono_property_get_set_method
6965 * @prop: the MonoProperty to act on.
6967 * Returns: the setter method of the property (A MonoMethod)
6970 mono_property_get_set_method (MonoProperty *prop)
6976 * mono_property_get_get_method
6977 * @prop: the MonoProperty to act on.
6979 * Returns: the setter method of the property (A MonoMethod)
6982 mono_property_get_get_method (MonoProperty *prop)
6988 * mono_property_get_parent:
6989 * @prop: the MonoProperty to act on.
6991 * Returns: the MonoClass where the property was defined.
6994 mono_property_get_parent (MonoProperty *prop)
6996 return prop->parent;
7000 * mono_property_get_flags:
7001 * @prop: the MonoProperty to act on.
7003 * The metadata flags for a property are encoded using the
7004 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
7006 * Returns: the flags for the property.
7009 mono_property_get_flags (MonoProperty *prop)
7015 * mono_event_get_name:
7016 * @event: the MonoEvent to act on
7018 * Returns: the name of the event.
7021 mono_event_get_name (MonoEvent *event)
7027 * mono_event_get_add_method:
7028 * @event: The MonoEvent to act on.
7030 * Returns: the @add' method for the event (a MonoMethod).
7033 mono_event_get_add_method (MonoEvent *event)
7039 * mono_event_get_remove_method:
7040 * @event: The MonoEvent to act on.
7042 * Returns: the @remove method for the event (a MonoMethod).
7045 mono_event_get_remove_method (MonoEvent *event)
7047 return event->remove;
7051 * mono_event_get_raise_method:
7052 * @event: The MonoEvent to act on.
7054 * Returns: the @raise method for the event (a MonoMethod).
7057 mono_event_get_raise_method (MonoEvent *event)
7059 return event->raise;
7063 * mono_event_get_parent:
7064 * @event: the MonoEvent to act on.
7066 * Returns: the MonoClass where the event is defined.
7069 mono_event_get_parent (MonoEvent *event)
7071 return event->parent;
7075 * mono_event_get_flags
7076 * @event: the MonoEvent to act on.
7078 * The metadata flags for an event are encoded using the
7079 * EVENT_* constants. See the tabledefs.h file for details.
7081 * Returns: the flags for the event.
7084 mono_event_get_flags (MonoEvent *event)
7086 return event->attrs;
7090 * mono_class_get_method_from_name:
7091 * @klass: where to look for the method
7092 * @name_space: name of the method
7093 * @param_count: number of parameters. -1 for any number.
7095 * Obtains a MonoMethod with a given name and number of parameters.
7096 * It only works if there are no multiple signatures for any given method name.
7099 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
7101 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
7105 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
7107 MonoMethod *res = NULL;
7110 /* Search directly in the metadata to avoid calling setup_methods () */
7111 for (i = 0; i < klass->method.count; ++i) {
7112 guint32 cols [MONO_METHOD_SIZE];
7115 /* class->method.first points into the methodptr table */
7116 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
7118 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
7119 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7120 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
7131 * mono_class_get_method_from_name_flags:
7132 * @klass: where to look for the method
7133 * @name_space: name of the method
7134 * @param_count: number of parameters. -1 for any number.
7135 * @flags: flags which must be set in the method
7137 * Obtains a MonoMethod with a given name and number of parameters.
7138 * It only works if there are no multiple signatures for any given method name.
7141 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
7143 MonoMethod *res = NULL;
7146 mono_class_init (klass);
7148 if (klass->generic_class && !klass->methods) {
7149 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
7151 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
7155 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
7156 mono_class_setup_methods (klass);
7157 for (i = 0; i < klass->method.count; ++i) {
7158 MonoMethod *method = klass->methods [i];
7160 if (method->name[0] == name [0] &&
7161 !strcmp (name, method->name) &&
7162 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
7163 ((method->flags & flags) == flags)) {
7170 res = find_method_in_metadata (klass, name, param_count, flags);
7177 * mono_class_set_failure:
7178 * @klass: class in which the failure was detected
7179 * @ex_type: the kind of exception/error to be thrown (later)
7180 * @ex_data: exception data (specific to each type of exception/error)
7182 * Keep a detected failure informations in the class for later processing.
7183 * Note that only the first failure is kept.
7185 * LOCKING: Acquires the loader lock.
7188 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
7190 if (klass->exception_type)
7193 mono_loader_lock ();
7194 klass->exception_type = ex_type;
7196 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
7197 mono_loader_unlock ();
7203 * mono_class_get_exception_data:
7205 * Return the exception_data property of KLASS.
7207 * LOCKING: Acquires the loader lock.
7210 mono_class_get_exception_data (MonoClass *klass)
7212 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
7216 * mono_classes_init:
7218 * Initialize the resources used by this module.
7221 mono_classes_init (void)
7223 mono_counters_register ("Inflated methods size",
7224 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
7225 mono_counters_register ("Inflated classes",
7226 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
7227 mono_counters_register ("Inflated classes size",
7228 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
7229 mono_counters_register ("MonoClass size",
7230 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
7231 mono_counters_register ("MonoClassExt size",
7232 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
7236 * mono_classes_cleanup:
7238 * Free the resources used by this module.
7241 mono_classes_cleanup (void)
7243 if (global_interface_bitset)
7244 mono_bitset_free (global_interface_bitset);
7248 * mono_class_get_exception_for_failure:
7249 * @klass: class in which the failure was detected
7251 * Return a constructed MonoException than the caller can then throw
7252 * using mono_raise_exception - or NULL if no failure is present (or
7253 * doesn't result in an exception).
7256 mono_class_get_exception_for_failure (MonoClass *klass)
7258 gpointer exception_data = mono_class_get_exception_data (klass);
7260 switch (klass->exception_type) {
7261 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7262 MonoDomain *domain = mono_domain_get ();
7263 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7264 MonoMethod *method = exception_data;
7265 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7266 MonoObject *exc = NULL;
7270 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7271 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7272 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7274 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7275 return (MonoException*) exc;
7277 case MONO_EXCEPTION_TYPE_LOAD: {
7280 char *str = mono_type_get_full_name (klass);
7281 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7282 name = mono_string_new (mono_domain_get (), str);
7284 ex = mono_get_exception_type_load (name, astr);
7288 case MONO_EXCEPTION_MISSING_METHOD: {
7289 char *class_name = exception_data;
7290 char *assembly_name = class_name + strlen (class_name) + 1;
7292 return mono_get_exception_missing_method (class_name, assembly_name);
7294 case MONO_EXCEPTION_MISSING_FIELD: {
7295 char *class_name = exception_data;
7296 char *member_name = class_name + strlen (class_name) + 1;
7298 return mono_get_exception_missing_field (class_name, member_name);
7300 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7301 char *msg_format = exception_data;
7302 char *assembly_name = msg_format + strlen (msg_format) + 1;
7303 char *msg = g_strdup_printf (msg_format, assembly_name);
7306 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7312 case MONO_EXCEPTION_BAD_IMAGE: {
7313 return mono_get_exception_bad_image_format (exception_data);
7316 MonoLoaderError *error;
7319 error = mono_loader_get_last_error ();
7321 ex = mono_loader_error_prepare_exception (error);
7325 /* TODO - handle other class related failures */
7332 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7334 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7335 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7337 if (outer_klass == inner_klass)
7339 inner_klass = inner_klass->nested_in;
7340 } while (inner_klass);
7345 mono_class_get_generic_type_definition (MonoClass *klass)
7347 return klass->generic_class ? klass->generic_class->container_class : klass;
7351 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7353 * Generic instantiations are ignored for all super types of @klass.
7355 * Visibility checks ignoring generic instantiations.
7358 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7361 klass = mono_class_get_generic_type_definition (klass);
7362 parent = mono_class_get_generic_type_definition (parent);
7364 for (i = 0; i < klass->idepth; ++i) {
7365 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7371 * Subtype can only access parent members with family protection if the site object
7372 * is subclass of Subtype. For example:
7373 * class A { protected int x; }
7375 * void valid_access () {
7379 * void invalid_access () {
7386 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7388 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7391 if (context_klass == NULL)
7393 /*if access_klass is not member_klass context_klass must be type compat*/
7394 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7400 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7403 if (accessing == accessed)
7405 if (!accessed || !accessing)
7407 mono_assembly_load_friends (accessed);
7408 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7409 MonoAssemblyName *friend = tmp->data;
7410 /* Be conservative with checks */
7413 if (strcmp (accessing->aname.name, friend->name))
7415 if (friend->public_key_token [0]) {
7416 if (!accessing->aname.public_key_token [0])
7418 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7427 * If klass is a generic type or if it is derived from a generic type, return the
7428 * MonoClass of the generic definition
7429 * Returns NULL if not found
7432 get_generic_definition_class (MonoClass *klass)
7435 if (klass->generic_class && klass->generic_class->container_class)
7436 return klass->generic_class->container_class;
7437 klass = klass->parent;
7443 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7446 for (i = 0; i < ginst->type_argc; ++i) {
7447 MonoType *type = ginst->type_argv[i];
7448 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
7450 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7457 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7459 int access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7461 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7464 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7467 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7470 switch (access_level) {
7471 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7472 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7474 case TYPE_ATTRIBUTE_PUBLIC:
7477 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7480 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7481 return is_nesting_type (member_klass, access_klass);
7483 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7484 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7486 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7487 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7489 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7490 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7491 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7493 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7494 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7495 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7500 /* FIXME: check visibility of type, too */
7502 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7504 MonoClass *member_generic_def;
7505 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7506 access_klass->generic_container) &&
7507 (member_generic_def = get_generic_definition_class (member_klass))) {
7508 MonoClass *access_container;
7510 if (access_klass->generic_container)
7511 access_container = access_klass;
7513 access_container = access_klass->generic_class->container_class;
7515 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7519 /* Partition I 8.5.3.2 */
7520 /* the access level values are the same for fields and methods */
7521 switch (access_level) {
7522 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7523 /* same compilation unit */
7524 return access_klass->image == member_klass->image;
7525 case FIELD_ATTRIBUTE_PRIVATE:
7526 return access_klass == member_klass;
7527 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7528 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7529 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7532 case FIELD_ATTRIBUTE_ASSEMBLY:
7533 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7534 case FIELD_ATTRIBUTE_FAMILY:
7535 if (is_valid_family_access (access_klass, member_klass, context_klass))
7538 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7539 if (is_valid_family_access (access_klass, member_klass, context_klass))
7541 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7542 case FIELD_ATTRIBUTE_PUBLIC:
7549 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7551 /* FIXME: check all overlapping fields */
7552 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7554 MonoClass *nested = method->klass->nested_in;
7556 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7559 nested = nested->nested_in;
7566 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7568 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7570 MonoClass *nested = method->klass->nested_in;
7572 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7575 nested = nested->nested_in;
7580 * with generics calls to explicit interface implementations can be expressed
7581 * directly: the method is private, but we must allow it. This may be opening
7582 * a hole or the generics code should handle this differently.
7583 * Maybe just ensure the interface type is public.
7585 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7591 * mono_method_can_access_method_with_context:
7592 * @method: The caller method
7593 * @called: The called method
7594 * @context_klass:TThe static type on stack of the owner @called object used
7596 * This function must be used with instance calls, as they have more strict family accessibility.
7597 * It can be used with static mehthod, but context_klass should be NULL.
7599 * Returns: TRUE if caller have proper visibility and acessibility to @called
7602 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7604 MonoClass *access_class = method->klass;
7605 MonoClass *member_class = called->klass;
7606 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7608 MonoClass *nested = access_class->nested_in;
7610 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7613 nested = nested->nested_in;
7620 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7623 if (called->is_inflated) {
7624 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7625 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7634 * mono_method_can_access_method_with_context:
7635 * @method: The caller method
7636 * @field: The accessed field
7637 * @context_klass: The static type on stack of the owner @field object used
7639 * This function must be used with instance fields, as they have more strict family accessibility.
7640 * It can be used with static fields, but context_klass should be NULL.
7642 * Returns: TRUE if caller have proper visibility and acessibility to @field
7645 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7647 MonoClass *access_class = method->klass;
7648 MonoClass *member_class = field->parent;
7649 /* FIXME: check all overlapping fields */
7650 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7652 MonoClass *nested = access_class->nested_in;
7654 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7657 nested = nested->nested_in;
7664 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7670 * mono_type_is_valid_enum_basetype:
7671 * @type: The MonoType to check
7673 * Returns: TRUE if the type can be used as the basetype of an enum
7675 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7676 switch (type->type) {
7679 case MONO_TYPE_BOOLEAN:
7682 case MONO_TYPE_CHAR:
7695 * mono_class_is_valid_enum:
7696 * @klass: An enum class to be validated
7698 * This method verify the required properties an enum should have.
7700 * Returns: TRUE if the informed enum class is valid
7702 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7703 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7704 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7706 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7707 MonoClassField * field;
7708 gpointer iter = NULL;
7709 gboolean found_base_field = FALSE;
7711 g_assert (klass->enumtype);
7712 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7713 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7717 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7720 while ((field = mono_class_get_fields (klass, &iter))) {
7721 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7722 if (found_base_field)
7724 found_base_field = TRUE;
7725 if (!mono_type_is_valid_enum_basetype (field->type))
7730 if (!found_base_field)
7733 if (klass->method.count > 0)
7740 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7742 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7746 * mono_class_generic_sharing_enabled:
7749 * Returns whether generic sharing is enabled for class.
7751 * This is a stop-gap measure to slowly introduce generic sharing
7752 * until we have all the issues sorted out, at which time this
7753 * function will disappear and generic sharing will always be enabled.
7756 mono_class_generic_sharing_enabled (MonoClass *class)
7758 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
7759 static gboolean supported = TRUE;
7761 /* Not supported by the JIT backends */
7762 static gboolean supported = FALSE;
7764 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7765 static gboolean inited = FALSE;
7771 generic_sharing = MONO_GENERIC_SHARING_ALL;
7773 generic_sharing = MONO_GENERIC_SHARING_NONE;
7775 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7776 if (strcmp (option, "corlib") == 0)
7777 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7778 else if (strcmp (option, "collections") == 0)
7779 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7780 else if (strcmp (option, "all") == 0)
7781 generic_sharing = MONO_GENERIC_SHARING_ALL;
7782 else if (strcmp (option, "none") == 0)
7783 generic_sharing = MONO_GENERIC_SHARING_NONE;
7785 g_warning ("Unknown generic sharing option `%s'.", option);
7789 generic_sharing = MONO_GENERIC_SHARING_NONE;
7794 switch (generic_sharing) {
7795 case MONO_GENERIC_SHARING_NONE:
7797 case MONO_GENERIC_SHARING_ALL:
7799 case MONO_GENERIC_SHARING_CORLIB :
7800 return class->image == mono_defaults.corlib;
7801 case MONO_GENERIC_SHARING_COLLECTIONS:
7802 if (class->image != mono_defaults.corlib)
7804 while (class->nested_in)
7805 class = class->nested_in;
7806 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7808 g_assert_not_reached ();
7813 * mono_class_setup_interface_id:
7815 * Initializes MonoClass::interface_id if required.
7817 * LOCKING: Acquires the loader lock.
7820 mono_class_setup_interface_id (MonoClass *class)
7822 mono_loader_lock ();
7823 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
7824 class->interface_id = mono_get_unique_iid (class);
7825 mono_loader_unlock ();
7829 * mono_class_alloc_ext:
7831 * Allocate klass->ext if not already done.
7832 * LOCKING: Assumes the loader lock is held.
7835 mono_class_alloc_ext (MonoClass *klass)
7838 if (klass->generic_class) {
7839 klass->ext = g_new0 (MonoClassExt, 1);
7841 klass->ext = mono_image_alloc0 (klass->image, sizeof (MonoClassExt));
7843 class_ext_size += sizeof (MonoClassExt);
7848 * mono_class_setup_interfaces:
7850 * Initialize class->interfaces/interfaces_count.
7851 * LOCKING: Acquires the loader lock.
7854 mono_class_setup_interfaces (MonoClass *klass)
7858 if (klass->interfaces_inited)
7861 mono_loader_lock ();
7863 if (klass->interfaces_inited) {
7864 mono_loader_unlock ();
7868 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
7871 /* generic IList, ICollection, IEnumerable */
7872 klass->interface_count = 1;
7873 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
7875 args [0] = &klass->element_class->byval_arg;
7876 klass->interfaces [0] = mono_class_bind_generic_parameters (
7877 mono_defaults.generic_ilist_class, 1, args, FALSE);
7878 } else if (klass->generic_class) {
7879 MonoClass *gklass = klass->generic_class->container_class;
7881 klass->interface_count = gklass->interface_count;
7882 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
7883 for (i = 0; i < klass->interface_count; i++)
7884 klass->interfaces [i] = mono_class_inflate_generic_class (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class));
7887 mono_memory_barrier ();
7889 klass->interfaces_inited = TRUE;
7891 mono_loader_unlock ();