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, mono_generic_container_get_param (klass->generic_container, 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 = mono_type_get_generic_param_num (type);
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 = mono_type_get_generic_param_num (type);
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)
1760 if (class->rank == 1) {
1762 * szarrays do not overwrite any methods of Array, so we can avoid
1763 * initializing their vtables in some cases.
1765 mono_class_setup_vtable (class->parent);
1766 if (offset < class->parent->vtable_size)
1767 return class->parent->vtable [offset];
1770 if (class->generic_class) {
1771 MonoClass *gklass = class->generic_class->container_class;
1772 mono_class_setup_vtable (gklass);
1773 m = gklass->vtable [offset];
1775 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
1777 mono_class_setup_vtable (class);
1778 m = class->vtable [offset];
1782 * We have to add static rgctx wrappers somewhere, we do it here,
1783 * altough it should probably be done by the JIT.
1785 if (mono_method_needs_static_rgctx_invoke (m, FALSE))
1786 m = mono_marshal_get_static_rgctx_invoke (m);
1791 mono_class_setup_properties (MonoClass *class)
1793 guint startm, endm, i, j;
1794 guint32 cols [MONO_PROPERTY_SIZE];
1795 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1796 MonoProperty *properties;
1799 if (class->ext && class->ext->properties)
1802 mono_loader_lock ();
1804 if (class->ext && class->ext->properties) {
1805 mono_loader_unlock ();
1809 mono_class_alloc_ext (class);
1811 if (class->generic_class) {
1812 MonoClass *gklass = class->generic_class->container_class;
1814 mono_class_init (gklass);
1815 mono_class_setup_properties (gklass);
1817 class->ext->property = gklass->ext->property;
1819 properties = g_new0 (MonoProperty, class->ext->property.count + 1);
1821 for (i = 0; i < class->ext->property.count; i++) {
1822 MonoProperty *prop = &properties [i];
1824 *prop = gklass->ext->properties [i];
1827 prop->get = mono_class_inflate_generic_method_full (
1828 prop->get, class, mono_class_get_context (class));
1830 prop->set = mono_class_inflate_generic_method_full (
1831 prop->set, class, mono_class_get_context (class));
1833 prop->parent = class;
1836 class->ext->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1837 class->ext->property.count = last - class->ext->property.first;
1839 if (class->ext->property.count)
1840 mono_class_setup_methods (class);
1842 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->ext->property.count);
1843 for (i = class->ext->property.first; i < last; ++i) {
1844 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1845 properties [i - class->ext->property.first].parent = class;
1846 properties [i - class->ext->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1847 properties [i - class->ext->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1849 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1850 for (j = startm; j < endm; ++j) {
1853 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1855 if (class->image->uncompressed_metadata)
1856 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1857 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1859 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1861 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1862 case METHOD_SEMANTIC_SETTER:
1863 properties [i - class->ext->property.first].set = method;
1865 case METHOD_SEMANTIC_GETTER:
1866 properties [i - class->ext->property.first].get = method;
1874 /*Flush any pending writes as we do double checked locking on class->properties */
1875 mono_memory_barrier ();
1877 /* Leave this assignment as the last op in the function */
1878 class->ext->properties = properties;
1880 mono_loader_unlock ();
1884 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1886 MonoMethod **om, **retval;
1889 for (om = methods, count = 0; *om; ++om, ++count)
1892 retval = g_new0 (MonoMethod*, count + 1);
1894 for (om = methods, count = 0; *om; ++om, ++count)
1895 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1901 mono_class_setup_events (MonoClass *class)
1903 guint startm, endm, i, j;
1904 guint32 cols [MONO_EVENT_SIZE];
1905 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1909 if (class->ext && class->ext->events)
1912 mono_loader_lock ();
1914 if (class->ext && class->ext->events) {
1915 mono_loader_unlock ();
1919 mono_class_alloc_ext (class);
1921 if (class->generic_class) {
1922 MonoClass *gklass = class->generic_class->container_class;
1923 MonoGenericContext *context;
1925 mono_class_setup_events (gklass);
1926 class->ext->event = gklass->ext->event;
1928 class->ext->events = g_new0 (MonoEvent, class->ext->event.count);
1930 if (class->ext->event.count)
1931 context = mono_class_get_context (class);
1933 for (i = 0; i < class->ext->event.count; i++) {
1934 MonoEvent *event = &class->ext->events [i];
1935 MonoEvent *gevent = &gklass->ext->events [i];
1937 event->parent = class;
1938 event->name = gevent->name;
1939 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1940 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1941 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1942 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1943 event->attrs = gevent->attrs;
1946 mono_loader_unlock ();
1950 class->ext->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1951 class->ext->event.count = last - class->ext->event.first;
1953 if (class->ext->event.count)
1954 mono_class_setup_methods (class);
1956 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->ext->event.count);
1957 for (i = class->ext->event.first; i < last; ++i) {
1958 MonoEvent *event = &events [i - class->ext->event.first];
1960 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1961 event->parent = class;
1962 event->attrs = cols [MONO_EVENT_FLAGS];
1963 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1965 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1966 for (j = startm; j < endm; ++j) {
1969 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1971 if (class->image->uncompressed_metadata)
1972 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1973 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1975 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1977 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1978 case METHOD_SEMANTIC_ADD_ON:
1979 event->add = method;
1981 case METHOD_SEMANTIC_REMOVE_ON:
1982 event->remove = method;
1984 case METHOD_SEMANTIC_FIRE:
1985 event->raise = method;
1987 case METHOD_SEMANTIC_OTHER: {
1990 if (event->other == NULL) {
1991 event->other = g_new0 (MonoMethod*, 2);
1993 while (event->other [n])
1995 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1997 event->other [n] = method;
1998 /* NULL terminated */
1999 event->other [n + 1] = NULL;
2007 /*Flush any pending writes as we do double checked locking on class->properties */
2008 mono_memory_barrier ();
2010 /* Leave this assignment as the last op in the function */
2011 class->ext->events = events;
2013 mono_loader_unlock ();
2017 * Global pool of interface IDs, represented as a bitset.
2018 * LOCKING: this is supposed to be accessed with the loader lock held.
2020 static MonoBitSet *global_interface_bitset = NULL;
2023 * mono_unload_interface_ids:
2024 * @bitset: bit set of interface IDs
2026 * When an image is unloaded, the interface IDs associated with
2027 * the image are put back in the global pool of IDs so the numbers
2031 mono_unload_interface_ids (MonoBitSet *bitset)
2033 mono_loader_lock ();
2034 mono_bitset_sub (global_interface_bitset, bitset);
2035 mono_loader_unlock ();
2039 * mono_get_unique_iid:
2042 * Assign a unique integer ID to the interface represented by @class.
2043 * The ID will positive and as small as possible.
2044 * LOCKING: this is supposed to be called with the loader lock held.
2045 * Returns: the new ID.
2048 mono_get_unique_iid (MonoClass *class)
2052 g_assert (MONO_CLASS_IS_INTERFACE (class));
2054 if (!global_interface_bitset) {
2055 global_interface_bitset = mono_bitset_new (128, 0);
2058 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2060 int old_size = mono_bitset_size (global_interface_bitset);
2061 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2062 mono_bitset_free (global_interface_bitset);
2063 global_interface_bitset = new_set;
2066 mono_bitset_set (global_interface_bitset, iid);
2067 /* set the bit also in the per-image set */
2068 if (class->image->interface_bitset) {
2069 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2070 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2071 mono_bitset_free (class->image->interface_bitset);
2072 class->image->interface_bitset = new_set;
2075 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2077 mono_bitset_set (class->image->interface_bitset, iid);
2079 if (mono_print_vtable) {
2081 char *type_name = mono_type_full_name (&class->byval_arg);
2082 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2083 generic_id = class->generic_class->context.class_inst->id;
2084 g_assert (generic_id != 0);
2088 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2092 g_assert (iid <= 65535);
2097 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
2102 mono_class_setup_interfaces (klass);
2104 for (i = 0; i < klass->interface_count; i++) {
2105 ic = klass->interfaces [i];
2108 *res = g_ptr_array_new ();
2109 g_ptr_array_add (*res, ic);
2110 mono_class_init (ic);
2112 collect_implemented_interfaces_aux (ic, res);
2117 mono_class_get_implemented_interfaces (MonoClass *klass)
2119 GPtrArray *res = NULL;
2121 collect_implemented_interfaces_aux (klass, &res);
2126 compare_interface_ids (const void *p_key, const void *p_element) {
2127 const MonoClass *key = p_key;
2128 const MonoClass *element = *(MonoClass**) p_element;
2130 return (key->interface_id - element->interface_id);
2134 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2135 MonoClass **result = bsearch (
2137 klass->interfaces_packed,
2138 klass->interface_offsets_count,
2139 sizeof (MonoClass *),
2140 compare_interface_ids);
2142 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2149 print_implemented_interfaces (MonoClass *klass) {
2150 GPtrArray *ifaces = NULL;
2152 int ancestor_level = 0;
2154 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
2155 for (i = 0; i < klass->interface_offsets_count; i++)
2156 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2157 klass->interfaces_packed [i]->interface_id,
2158 klass->interface_offsets_packed [i],
2159 klass->interfaces_packed [i]->method.count,
2160 klass->interfaces_packed [i]->name_space,
2161 klass->interfaces_packed [i]->name );
2162 printf ("Interface flags: ");
2163 for (i = 0; i <= klass->max_interface_id; i++)
2164 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2165 printf ("(%d,T)", i);
2167 printf ("(%d,F)", i);
2169 printf ("Dump interface flags:");
2170 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2171 printf (" %02X", klass->interface_bitmap [i]);
2173 while (klass != NULL) {
2174 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2175 ifaces = mono_class_get_implemented_interfaces (klass);
2177 for (i = 0; i < ifaces->len; i++) {
2178 MonoClass *ic = g_ptr_array_index (ifaces, i);
2179 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2180 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2182 mono_class_interface_offset (klass, ic),
2187 g_ptr_array_free (ifaces, TRUE);
2190 klass = klass->parent;
2195 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2198 args [0] = &arg0->byval_arg;
2200 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2204 array_class_get_if_rank (MonoClass *class, guint rank)
2206 return rank ? mono_array_class_get (class, rank) : class;
2210 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2212 valuetype_types [0] = eclass;
2213 if (eclass == mono_defaults.int16_class)
2214 valuetype_types [1] = mono_defaults.uint16_class;
2215 else if (eclass == mono_defaults.uint16_class)
2216 valuetype_types [1] = mono_defaults.int16_class;
2217 else if (eclass == mono_defaults.int32_class)
2218 valuetype_types [1] = mono_defaults.uint32_class;
2219 else if (eclass == mono_defaults.uint32_class)
2220 valuetype_types [1] = mono_defaults.int32_class;
2221 else if (eclass == mono_defaults.int64_class)
2222 valuetype_types [1] = mono_defaults.uint64_class;
2223 else if (eclass == mono_defaults.uint64_class)
2224 valuetype_types [1] = mono_defaults.int64_class;
2225 else if (eclass == mono_defaults.byte_class)
2226 valuetype_types [1] = mono_defaults.sbyte_class;
2227 else if (eclass == mono_defaults.sbyte_class)
2228 valuetype_types [1] = mono_defaults.byte_class;
2229 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2230 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2233 /* this won't be needed once bug #325495 is completely fixed
2234 * though we'll need something similar to know which interfaces to allow
2235 * in arrays when they'll be lazyly created
2237 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2238 * MS returns diferrent types based on which instance is called. For example:
2239 * object obj = new byte[10][];
2240 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2241 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2244 * Fixing this should kill quite some code, save some bits and improve compatbility.
2247 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2249 MonoClass *eclass = class->element_class;
2250 static MonoClass* generic_icollection_class = NULL;
2251 static MonoClass* generic_ienumerable_class = NULL;
2252 static MonoClass* generic_ienumerator_class = NULL;
2253 MonoClass *valuetype_types[2] = { NULL, NULL };
2254 MonoClass **interfaces = NULL;
2255 int i, interface_count, real_count, original_rank;
2257 gboolean internal_enumerator;
2258 gboolean eclass_is_valuetype;
2260 if (!mono_defaults.generic_ilist_class) {
2264 internal_enumerator = FALSE;
2265 eclass_is_valuetype = FALSE;
2266 original_rank = eclass->rank;
2267 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2268 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2270 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2272 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2273 original_rank = eclass->rank;
2274 eclass = eclass->element_class;
2275 internal_enumerator = TRUE;
2276 *is_enumerator = TRUE;
2284 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2285 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2287 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2289 if (!generic_icollection_class) {
2290 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2291 "System.Collections.Generic", "ICollection`1");
2292 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2293 "System.Collections.Generic", "IEnumerable`1");
2294 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2295 "System.Collections.Generic", "IEnumerator`1");
2298 mono_class_init (eclass);
2301 * Arrays in 2.0 need to implement a number of generic interfaces
2302 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2303 * on the element class). We collect the types needed to build the
2304 * instantiations in interfaces at intervals of 3, because 3 are
2305 * the generic interfaces needed to implement.
2307 if (eclass->valuetype) {
2308 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2310 /* IList, ICollection, IEnumerable */
2311 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2312 if (internal_enumerator) {
2314 if (valuetype_types [1])
2318 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2319 interfaces [0] = valuetype_types [0];
2320 if (valuetype_types [1])
2321 interfaces [3] = valuetype_types [1];
2323 eclass_is_valuetype = TRUE;
2326 int idepth = eclass->idepth;
2327 if (!internal_enumerator)
2329 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2330 /* we add object for interfaces and the supertypes for the other
2331 * types. The last of the supertypes is the element class itself which we
2332 * already created the explicit interfaces for (so we include it for IEnumerator
2333 * and exclude it for arrays).
2335 if (MONO_CLASS_IS_INTERFACE (eclass))
2338 interface_count += idepth;
2339 if (eclass->rank && eclass->element_class->valuetype) {
2340 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2341 if (valuetype_types [1])
2344 /* IList, ICollection, IEnumerable */
2345 interface_count *= 3;
2346 real_count = interface_count;
2347 if (internal_enumerator) {
2348 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2349 if (valuetype_types [1])
2352 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2353 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2354 interfaces [0] = mono_defaults.object_class;
2358 for (i = 0; i < idepth; i++) {
2359 mono_class_init (eclass->supertypes [i]);
2360 interfaces [j] = eclass->supertypes [i];
2364 if (all_interfaces) {
2365 for (i = 0; i < eclass->interface_offsets_count; i++) {
2366 interfaces [j] = eclass->interfaces_packed [i];
2370 for (i = 0; i < eclass->interface_count; i++) {
2371 interfaces [j] = eclass->interfaces [i];
2375 if (valuetype_types [1]) {
2376 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2381 /* instantiate the generic interfaces */
2382 for (i = 0; i < interface_count; i += 3) {
2383 MonoClass *iface = interfaces [i];
2385 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2386 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2387 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2389 if (internal_enumerator) {
2391 /* instantiate IEnumerator<iface> */
2392 for (i = 0; i < interface_count; i++) {
2393 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2395 j = interface_count;
2396 if (!eclass_is_valuetype) {
2397 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2398 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2401 for (i = 0; i < eclass->idepth; i++) {
2402 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2406 for (i = 0; i < eclass->interface_offsets_count; i++) {
2407 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2411 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2413 if (valuetype_types [1])
2414 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2418 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2419 for (i = 0; i < real_count; ++i) {
2420 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2421 g_print ("%s implements %s\n", type_name, name);
2432 find_array_interface (MonoClass *klass, const char *name)
2435 for (i = 0; i < klass->interface_count; ++i) {
2436 if (strcmp (klass->interfaces [i]->name, name) == 0)
2443 * LOCKING: this is supposed to be called with the loader lock held.
2446 setup_interface_offsets (MonoClass *class, int cur_slot)
2450 MonoClass **interfaces_full;
2451 int *interface_offsets_full;
2453 int interface_offsets_count;
2454 MonoClass **array_interfaces;
2455 int num_array_interfaces;
2456 int is_enumerator = FALSE;
2459 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2460 * implicit interfaces have the property that they are assigned the same slot in the
2461 * vtables for compatible interfaces
2463 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2465 /* compute maximum number of slots and maximum interface id */
2467 for (k = class; k ; k = k->parent) {
2468 for (i = 0; i < k->interface_count; i++) {
2469 ic = k->interfaces [i];
2472 mono_class_init (ic);
2474 if (max_iid < ic->interface_id)
2475 max_iid = ic->interface_id;
2477 ifaces = mono_class_get_implemented_interfaces (k);
2479 for (i = 0; i < ifaces->len; ++i) {
2480 ic = g_ptr_array_index (ifaces, i);
2481 if (max_iid < ic->interface_id)
2482 max_iid = ic->interface_id;
2484 g_ptr_array_free (ifaces, TRUE);
2487 for (i = 0; i < num_array_interfaces; ++i) {
2488 ic = array_interfaces [i];
2489 mono_class_init (ic);
2490 if (max_iid < ic->interface_id)
2491 max_iid = ic->interface_id;
2494 if (MONO_CLASS_IS_INTERFACE (class)) {
2495 if (max_iid < class->interface_id)
2496 max_iid = class->interface_id;
2498 class->max_interface_id = max_iid;
2499 /* compute vtable offset for interfaces */
2500 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2501 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2503 for (i = 0; i <= max_iid; i++) {
2504 interfaces_full [i] = NULL;
2505 interface_offsets_full [i] = -1;
2508 ifaces = mono_class_get_implemented_interfaces (class);
2510 for (i = 0; i < ifaces->len; ++i) {
2511 ic = g_ptr_array_index (ifaces, i);
2512 interfaces_full [ic->interface_id] = ic;
2513 interface_offsets_full [ic->interface_id] = cur_slot;
2514 cur_slot += ic->method.count;
2516 g_ptr_array_free (ifaces, TRUE);
2519 for (k = class->parent; k ; k = k->parent) {
2520 ifaces = mono_class_get_implemented_interfaces (k);
2522 for (i = 0; i < ifaces->len; ++i) {
2523 ic = g_ptr_array_index (ifaces, i);
2525 if (interface_offsets_full [ic->interface_id] == -1) {
2526 int io = mono_class_interface_offset (k, ic);
2530 interfaces_full [ic->interface_id] = ic;
2531 interface_offsets_full [ic->interface_id] = io;
2534 g_ptr_array_free (ifaces, TRUE);
2538 if (MONO_CLASS_IS_INTERFACE (class)) {
2539 interfaces_full [class->interface_id] = class;
2540 interface_offsets_full [class->interface_id] = cur_slot;
2543 if (num_array_interfaces) {
2544 if (is_enumerator) {
2545 int ienumerator_offset;
2546 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
2547 ienumerator_offset = interface_offsets_full [class->interfaces [ienumerator_idx]->interface_id];
2548 for (i = 0; i < num_array_interfaces; ++i) {
2549 ic = array_interfaces [i];
2550 interfaces_full [ic->interface_id] = ic;
2551 if (strcmp (ic->name, "IEnumerator`1") == 0)
2552 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2554 g_assert_not_reached ();
2555 /*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);*/
2558 int ilist_offset, icollection_offset, ienumerable_offset;
2559 int ilist_iface_idx = find_array_interface (class, "IList`1");
2560 int icollection_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "ICollection`1");
2561 int ienumerable_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "IEnumerable`1");
2562 ilist_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interface_id];
2563 icollection_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [icollection_iface_idx]->interface_id];
2564 ienumerable_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [ienumerable_iface_idx]->interface_id];
2565 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2566 for (i = 0; i < num_array_interfaces; ++i) {
2567 ic = array_interfaces [i];
2568 interfaces_full [ic->interface_id] = ic;
2569 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2570 interface_offsets_full [ic->interface_id] = ilist_offset;
2571 else if (strcmp (ic->name, "ICollection`1") == 0)
2572 interface_offsets_full [ic->interface_id] = icollection_offset;
2573 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2574 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2576 g_assert_not_reached ();
2577 /*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);*/
2582 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2583 if (interface_offsets_full [i] != -1) {
2584 interface_offsets_count ++;
2589 * We might get called twice: once from mono_class_init () then once from
2590 * mono_class_setup_vtable ().
2592 if (class->interfaces_packed) {
2593 g_assert (class->interface_offsets_count == interface_offsets_count);
2595 class->interface_offsets_count = interface_offsets_count;
2596 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2597 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2598 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2599 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2600 if (interface_offsets_full [i] != -1) {
2601 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2602 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2603 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2604 /*if (num_array_interfaces)
2605 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]);*/
2606 interface_offsets_count ++;
2611 g_free (interfaces_full);
2612 g_free (interface_offsets_full);
2613 g_free (array_interfaces);
2615 //printf ("JUST DONE: ");
2616 //print_implemented_interfaces (class);
2622 * Setup interface offsets for interfaces.
2624 * - class->max_interface_id
2625 * - class->interface_offsets_count
2626 * - class->interfaces_packed
2627 * - class->interface_offsets_packed
2628 * - class->interface_bitmap
2631 mono_class_setup_interface_offsets (MonoClass *class)
2633 mono_loader_lock ();
2635 setup_interface_offsets (class, 0);
2637 mono_loader_unlock ();
2641 * mono_class_setup_vtable:
2643 * Creates the generic vtable of CLASS.
2644 * Initializes the following fields in MonoClass:
2647 * Plus all the fields initialized by setup_interface_offsets ().
2648 * If there is an error during vtable construction, class->exception_type is set.
2650 * LOCKING: Acquires the loader lock.
2653 mono_class_setup_vtable (MonoClass *class)
2655 MonoMethod **overrides;
2656 MonoGenericContext *context;
2665 if (mono_debug_using_mono_debugger ())
2666 /* The debugger currently depends on this */
2667 mono_class_setup_methods (class);
2669 if (MONO_CLASS_IS_INTERFACE (class)) {
2670 /* This sets method->slot for all methods if this is an interface */
2671 mono_class_setup_methods (class);
2675 mono_loader_lock ();
2677 if (class->vtable) {
2678 mono_loader_unlock ();
2682 mono_stats.generic_vtable_count ++;
2684 if (class->generic_class) {
2685 context = mono_class_get_context (class);
2686 type_token = class->generic_class->container_class->type_token;
2688 context = (MonoGenericContext *) class->generic_container;
2689 type_token = class->type_token;
2692 if (class->image->dynamic) {
2693 if (class->generic_class) {
2694 MonoClass *gklass = class->generic_class->container_class;
2696 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2697 for (i = 0; i < onum; ++i) {
2698 MonoMethod *override = overrides [(i * 2) + 1];
2699 MonoMethod *inflated = NULL;
2702 for (j = 0; j < class->method.count; ++j) {
2703 if (gklass->methods [j] == override) {
2704 inflated = class->methods [j];
2708 g_assert (inflated);
2710 overrides [(i * 2) + 1] = inflated;
2713 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2716 /* The following call fails if there are missing methods in the type */
2717 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2721 mono_class_setup_vtable_general (class, overrides, onum);
2725 mono_loader_unlock ();
2730 #define DEBUG_INTERFACE_VTABLE_CODE 0
2731 #define TRACE_INTERFACE_VTABLE_CODE 0
2732 #define VERIFY_INTERFACE_VTABLE_CODE 0
2734 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2735 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2739 #define DEBUG_INTERFACE_VTABLE(stmt)
2742 #if TRACE_INTERFACE_VTABLE_CODE
2743 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2747 #define TRACE_INTERFACE_VTABLE(stmt)
2750 #if VERIFY_INTERFACE_VTABLE_CODE
2751 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
2755 #define VERIFY_INTERFACE_VTABLE(stmt)
2759 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2761 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2765 GString *res = g_string_new ("");
2767 g_string_append_c (res, '(');
2768 for (i = 0; i < sig->param_count; ++i) {
2770 g_string_append_c (res, ',');
2771 mono_type_get_desc (res, sig->params [i], include_namespace);
2773 g_string_append (res, ")=>");
2774 if (sig->ret != NULL) {
2775 mono_type_get_desc (res, sig->ret, include_namespace);
2777 g_string_append (res, "NULL");
2780 g_string_free (res, FALSE);
2784 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2785 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2786 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2787 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2795 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) {
2796 if (strcmp (im->name, cm->name) == 0) {
2797 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2798 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2801 if (! slot_is_empty) {
2802 if (require_newslot) {
2803 if (! interface_is_explicitly_implemented_by_class) {
2804 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2807 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2808 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2812 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2815 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2816 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2817 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2818 TRACE_INTERFACE_VTABLE (printf ("]"));
2821 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2822 /* CAS - SecurityAction.InheritanceDemand on interface */
2823 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2824 mono_secman_inheritancedemand_method (cm, im);
2827 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2828 mono_security_core_clr_check_override (class, cm, im);
2829 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2832 MonoClass *ic = im->klass;
2833 const char *ic_name_space = ic->name_space;
2834 const char *ic_name = ic->name;
2837 if (! require_newslot) {
2838 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2841 if (cm->klass->rank == 0) {
2842 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2845 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2846 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2847 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2848 TRACE_INTERFACE_VTABLE (printf ("]"));
2851 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2852 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2855 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2856 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2859 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2860 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2864 subname = strstr (cm->name, ic_name_space);
2865 if (subname != cm->name) {
2866 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2869 subname += strlen (ic_name_space);
2870 if (subname [0] != '.') {
2871 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2875 if (strstr (subname, ic_name) != subname) {
2876 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2879 subname += strlen (ic_name);
2880 if (subname [0] != '.') {
2881 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2885 if (strcmp (subname, im->name) != 0) {
2886 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2890 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2891 /* CAS - SecurityAction.InheritanceDemand on interface */
2892 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2893 mono_secman_inheritancedemand_method (cm, im);
2896 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2897 mono_security_core_clr_check_override (class, cm, im);
2899 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2904 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2906 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2907 MonoMethod *method = key;
2908 MonoMethod *override = value;
2909 MonoClass *method_class = mono_method_get_class (method);
2910 MonoClass *override_class = mono_method_get_class (override);
2912 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2913 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2914 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2917 print_overrides (GHashTable *override_map, const char *message) {
2919 printf ("Override map \"%s\" START:\n", message);
2920 g_hash_table_foreach (override_map, foreach_override, NULL);
2921 printf ("Override map \"%s\" END.\n", message);
2923 printf ("Override map \"%s\" EMPTY.\n", message);
2927 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2928 char *full_name = mono_type_full_name (&class->byval_arg);
2932 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2934 if (print_interfaces) {
2935 print_implemented_interfaces (class);
2936 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2939 if (class->parent) {
2940 parent_size = class->parent->vtable_size;
2944 for (i = 0; i < size; ++i) {
2945 MonoMethod *cm = vtable [i];
2947 char *cm_name = mono_method_full_name (cm, TRUE);
2948 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2949 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2958 #if VERIFY_INTERFACE_VTABLE_CODE
2960 mono_method_try_get_vtable_index (MonoMethod *method)
2962 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2963 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
2964 if (imethod->declaring->is_generic)
2965 return imethod->declaring->slot;
2967 return method->slot;
2971 mono_class_verify_vtable (MonoClass *class)
2974 char *full_name = mono_type_full_name (&class->byval_arg);
2976 printf ("*** Verifying VTable of class '%s' \n", full_name);
2980 if (!class->methods)
2983 for (i = 0; i < class->method.count; ++i) {
2984 MonoMethod *cm = class->methods [i];
2987 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2991 full_name = mono_method_full_name (cm, TRUE);
2993 slot = mono_method_try_get_vtable_index (cm);
2995 if (slot >= class->vtable_size) {
2996 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3000 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3001 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3002 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3003 g_free (other_name);
3006 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3013 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3015 char *method_signature;
3017 for (index = 0; index < onum; ++index) {
3018 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3019 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3021 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3022 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
3023 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
3024 g_free (method_signature);
3025 mono_class_setup_methods (class);
3026 for (index = 0; index < class->method.count; ++index) {
3027 MonoMethod *cm = class->methods [index];
3028 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3030 printf ("METHOD %s(%s)\n", cm->name, method_signature);
3031 g_free (method_signature);
3036 * LOCKING: this is supposed to be called with the loader lock held.
3039 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3042 MonoMethod **vtable;
3043 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3044 GPtrArray *ifaces = NULL;
3045 GHashTable *override_map = NULL;
3046 gboolean security_enabled = mono_is_security_manager_active ();
3048 gpointer class_iter;
3049 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3050 int first_non_interface_slot;
3056 ifaces = mono_class_get_implemented_interfaces (class);
3058 for (i = 0; i < ifaces->len; i++) {
3059 MonoClass *ic = g_ptr_array_index (ifaces, i);
3060 max_vtsize += ic->method.count;
3062 g_ptr_array_free (ifaces, TRUE);
3066 if (class->parent) {
3067 mono_class_init (class->parent);
3068 mono_class_setup_vtable (class->parent);
3069 max_vtsize += class->parent->vtable_size;
3070 cur_slot = class->parent->vtable_size;
3073 max_vtsize += class->method.count;
3075 vtable = alloca (sizeof (gpointer) * max_vtsize);
3076 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3078 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3080 cur_slot = setup_interface_offsets (class, cur_slot);
3081 max_iid = class->max_interface_id;
3082 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3084 /* Optimized version for generic instances */
3085 if (class->generic_class) {
3086 MonoClass *gklass = class->generic_class->container_class;
3089 mono_class_setup_vtable (gklass);
3091 tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
3092 class->vtable_size = gklass->vtable_size;
3093 for (i = 0; i < gklass->vtable_size; ++i)
3094 if (gklass->vtable [i]) {
3095 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
3096 tmp [i]->slot = gklass->vtable [i]->slot;
3098 mono_memory_barrier ();
3099 class->vtable = tmp;
3101 /* Have to set method->slot for abstract virtual methods */
3102 if (class->methods && gklass->methods) {
3103 for (i = 0; i < class->method.count; ++i)
3104 if (class->methods [i]->slot == -1)
3105 class->methods [i]->slot = gklass->methods [i]->slot;
3111 if (class->parent && class->parent->vtable_size) {
3112 MonoClass *parent = class->parent;
3115 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3117 // Also inherit parent interface vtables, just as a starting point.
3118 // This is needed otherwise bug-77127.exe fails when the property methods
3119 // have different names in the iterface and the class, because for child
3120 // classes the ".override" information is not used anymore.
3121 for (i = 0; i < parent->interface_offsets_count; i++) {
3122 MonoClass *parent_interface = parent->interfaces_packed [i];
3123 int interface_offset = mono_class_interface_offset (class, parent_interface);
3125 if (interface_offset >= parent->vtable_size) {
3126 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3129 mono_class_setup_methods (parent_interface);
3130 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3131 for (j = 0; j < parent_interface->method.count; j++) {
3132 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3133 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3134 parent_interface_offset + j, parent_interface_offset, j,
3135 interface_offset + j, interface_offset, j));
3142 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3143 /* override interface methods */
3144 for (i = 0; i < onum; i++) {
3145 MonoMethod *decl = overrides [i*2];
3146 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3148 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
3149 vtable [dslot] = overrides [i*2 + 1];
3150 vtable [dslot]->slot = dslot;
3152 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3154 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3156 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3157 mono_security_core_clr_check_override (class, vtable [dslot], decl);
3160 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3161 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3163 // Loop on all implemented interfaces...
3164 for (i = 0; i < class->interface_offsets_count; i++) {
3165 MonoClass *parent = class->parent;
3167 gboolean interface_is_explicitly_implemented_by_class;
3170 ic = class->interfaces_packed [i];
3171 ic_offset = mono_class_interface_offset (class, ic);
3173 mono_class_setup_methods (ic);
3175 // Check if this interface is explicitly implemented (instead of just inherited)
3176 if (parent != NULL) {
3177 int implemented_interfaces_index;
3178 interface_is_explicitly_implemented_by_class = FALSE;
3179 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3180 if (ic == class->interfaces [implemented_interfaces_index]) {
3181 interface_is_explicitly_implemented_by_class = TRUE;
3186 interface_is_explicitly_implemented_by_class = TRUE;
3189 // Loop on all interface methods...
3190 for (im_index = 0; im_index < ic->method.count; im_index++) {
3191 MonoMethod *im = ic->methods [im_index];
3192 int im_slot = ic_offset + im->slot;
3193 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3195 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3198 // If there is an explicit implementation, just use it right away,
3199 // otherwise look for a matching method
3200 if (override_im == NULL) {
3205 // First look for a suitable method among the class methods
3207 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3208 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)));
3209 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3210 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3211 vtable [im_slot] = cm;
3212 /* Why do we need this? */
3217 TRACE_INTERFACE_VTABLE (printf ("\n"));
3220 // If the slot is still empty, look in all the inherited virtual methods...
3221 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3222 MonoClass *parent = class->parent;
3223 // Reverse order, so that last added methods are preferred
3224 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3225 MonoMethod *cm = parent->vtable [cm_index];
3227 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));
3228 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3229 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3230 vtable [im_slot] = cm;
3231 /* Why do we need this? */
3237 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3241 g_assert (vtable [im_slot] == override_im);
3246 // If the class is not abstract, check that all its interface slots are full.
3247 // The check is done here and not directly at the end of the loop above because
3248 // it can happen (for injected generic array interfaces) that the same slot is
3249 // processed multiple times (those interfaces have overlapping slots), and it
3250 // will not always be the first pass the one that fills the slot.
3251 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3252 for (i = 0; i < class->interface_offsets_count; i++) {
3256 ic = class->interfaces_packed [i];
3257 ic_offset = mono_class_interface_offset (class, ic);
3259 for (im_index = 0; im_index < ic->method.count; im_index++) {
3260 MonoMethod *im = ic->methods [im_index];
3261 int im_slot = ic_offset + im->slot;
3263 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3266 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3267 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3268 if (vtable [im_slot] == NULL) {
3269 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3270 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3272 g_hash_table_destroy (override_map);
3279 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3281 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3283 * If the method is REUSE_SLOT, we must check in the
3284 * base class for a method to override.
3286 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3288 for (k = class->parent; k ; k = k->parent) {
3293 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3294 MonoMethodSignature *cmsig, *m1sig;
3296 cmsig = mono_method_signature (cm);
3297 m1sig = mono_method_signature (m1);
3299 if (!cmsig || !m1sig) {
3300 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3304 if (!strcmp(cm->name, m1->name) &&
3305 mono_metadata_signature_equal (cmsig, m1sig)) {
3307 /* CAS - SecurityAction.InheritanceDemand */
3308 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3309 mono_secman_inheritancedemand_method (cm, m1);
3312 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3313 mono_security_core_clr_check_override (class, cm, m1);
3315 slot = mono_method_get_vtable_slot (m1);
3316 g_assert (cm->slot < max_vtsize);
3318 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3319 g_hash_table_insert (override_map, m1, cm);
3331 cm->slot = cur_slot++;
3333 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3334 vtable [cm->slot] = cm;
3337 /* override non interface methods */
3338 for (i = 0; i < onum; i++) {
3339 MonoMethod *decl = overrides [i*2];
3340 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3341 g_assert (decl->slot != -1);
3342 vtable [decl->slot] = overrides [i*2 + 1];
3343 overrides [i * 2 + 1]->slot = decl->slot;
3345 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3346 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3348 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3349 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
3354 * If a method occupies more than one place in the vtable, and it is
3355 * overriden, then change the other occurances too.
3358 for (i = 0; i < max_vtsize; ++i)
3360 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3365 g_hash_table_destroy (override_map);
3368 if (class->generic_class) {
3369 MonoClass *gklass = class->generic_class->container_class;
3371 mono_class_init (gklass);
3373 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3375 /* Check that the vtable_size value computed in mono_class_init () is correct */
3376 if (class->vtable_size)
3377 g_assert (cur_slot == class->vtable_size);
3378 class->vtable_size = cur_slot;
3381 /* Try to share the vtable with our parent. */
3382 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3383 mono_memory_barrier ();
3384 class->vtable = class->parent->vtable;
3386 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3387 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3388 mono_memory_barrier ();
3389 class->vtable = tmp;
3392 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3393 if (mono_print_vtable) {
3396 print_implemented_interfaces (class);
3398 for (i = 0; i <= max_iid; i++)
3399 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3402 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3403 class->vtable_size, icount);
3405 for (i = 0; i < class->vtable_size; ++i) {
3410 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3411 mono_method_full_name (cm, TRUE));
3417 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3418 class->name, max_iid);
3420 for (i = 0; i < class->interface_count; i++) {
3421 ic = class->interfaces [i];
3422 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3423 mono_class_interface_offset (class, ic),
3424 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3427 for (k = class->parent; k ; k = k->parent) {
3428 for (i = 0; i < k->interface_count; i++) {
3429 ic = k->interfaces [i];
3430 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3431 mono_class_interface_offset (class, ic),
3432 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3438 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
3442 * mono_method_get_vtable_slot:
3444 * Returns method->slot, computing it if neccesary.
3445 * LOCKING: Acquires the loader lock.
3448 mono_method_get_vtable_slot (MonoMethod *method)
3450 if (method->slot == -1) {
3451 mono_class_setup_vtable (method->klass);
3452 g_assert (method->slot != -1);
3454 return method->slot;
3458 * mono_method_get_vtable_index:
3461 * Returns the index into the runtime vtable to access the method or,
3462 * in the case of a virtual generic method, the virtual generic method
3466 mono_method_get_vtable_index (MonoMethod *method)
3468 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3469 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3470 if (imethod->declaring->is_generic)
3471 return mono_method_get_vtable_slot (imethod->declaring);
3473 return mono_method_get_vtable_slot (method);
3476 static MonoMethod *default_ghc = NULL;
3477 static MonoMethod *default_finalize = NULL;
3478 static int finalize_slot = -1;
3479 static int ghc_slot = -1;
3482 initialize_object_slots (MonoClass *class)
3487 if (class == mono_defaults.object_class) {
3488 mono_class_setup_vtable (class);
3489 for (i = 0; i < class->vtable_size; ++i) {
3490 MonoMethod *cm = class->vtable [i];
3492 if (!strcmp (cm->name, "GetHashCode"))
3494 else if (!strcmp (cm->name, "Finalize"))
3498 g_assert (ghc_slot > 0);
3499 default_ghc = class->vtable [ghc_slot];
3501 g_assert (finalize_slot > 0);
3502 default_finalize = class->vtable [finalize_slot];
3507 MonoMethod *array_method;
3509 } GenericArrayMethodInfo;
3511 static int generic_array_method_num = 0;
3512 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3515 generic_array_methods (MonoClass *class)
3517 int i, count_generic = 0;
3518 GList *list = NULL, *tmp;
3519 if (generic_array_method_num)
3520 return generic_array_method_num;
3521 mono_class_setup_methods (class->parent);
3522 for (i = 0; i < class->parent->method.count; i++) {
3523 MonoMethod *m = class->parent->methods [i];
3524 if (!strncmp (m->name, "InternalArray__", 15)) {
3526 list = g_list_prepend (list, m);
3529 list = g_list_reverse (list);
3530 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3532 for (tmp = list; tmp; tmp = tmp->next) {
3533 const char *mname, *iname;
3535 MonoMethod *m = tmp->data;
3536 generic_array_method_info [i].array_method = m;
3537 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3538 iname = "System.Collections.Generic.ICollection`1.";
3539 mname = m->name + 27;
3540 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3541 iname = "System.Collections.Generic.IEnumerable`1.";
3542 mname = m->name + 27;
3543 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3544 iname = "System.Collections.Generic.IList`1.";
3545 mname = m->name + 15;
3547 g_assert_not_reached ();
3550 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3551 strcpy (name, iname);
3552 strcpy (name + strlen (iname), mname);
3553 generic_array_method_info [i].name = name;
3556 /*g_print ("array generic methods: %d\n", count_generic);*/
3558 generic_array_method_num = count_generic;
3560 return generic_array_method_num;
3564 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3566 MonoGenericContext tmp_context;
3569 tmp_context.class_inst = NULL;
3570 tmp_context.method_inst = iface->generic_class->context.class_inst;
3571 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3573 for (i = 0; i < generic_array_method_num; i++) {
3574 MonoMethod *m = generic_array_method_info [i].array_method;
3575 MonoMethod *inflated;
3577 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3578 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3583 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3585 int len = strlen (s1) + strlen (s2) + 2;
3586 char *s = mono_image_alloc (image, len);
3589 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3590 g_assert (result == len - 1);
3596 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3598 gpointer exception_data = NULL;
3600 switch (error->exception_type) {
3601 case MONO_EXCEPTION_TYPE_LOAD:
3602 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3605 case MONO_EXCEPTION_MISSING_METHOD:
3606 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3609 case MONO_EXCEPTION_MISSING_FIELD: {
3610 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3611 const char *class_name;
3614 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3616 class_name = error->klass->name;
3618 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3621 g_free ((void*)class_name);
3625 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3628 if (error->ref_only)
3629 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.";
3631 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3633 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3637 case MONO_EXCEPTION_BAD_IMAGE:
3638 exception_data = error->msg;
3642 g_assert_not_reached ();
3645 mono_class_set_failure (class, error->exception_type, exception_data);
3650 * @class: the class to initialize
3652 * Compute the instance_size, class_size and other infos that cannot be
3653 * computed at mono_class_get() time. Also compute vtable_size if possible.
3654 * Returns TRUE on success or FALSE if there was a problem in loading
3655 * the type (incorrect assemblies, missing assemblies, methods, etc).
3657 * LOCKING: Acquires the loader lock.
3660 mono_class_init (MonoClass *class)
3663 MonoCachedClassInfo cached_info;
3664 gboolean has_cached_info;
3665 int class_init_ok = TRUE;
3669 /* Double-checking locking pattern */
3671 return class->exception_type == MONO_EXCEPTION_NONE;
3673 /*g_print ("Init class %s\n", class->name);*/
3675 /* We do everything inside the lock to prevent races */
3676 mono_loader_lock ();
3678 if (class->inited) {
3679 mono_loader_unlock ();
3680 /* Somebody might have gotten in before us */
3681 return class->exception_type == MONO_EXCEPTION_NONE;
3684 if (class->init_pending) {
3685 mono_loader_unlock ();
3686 /* this indicates a cyclic dependency */
3687 g_error ("pending init %s.%s\n", class->name_space, class->name);
3690 class->init_pending = 1;
3692 /* CAS - SecurityAction.InheritanceDemand */
3693 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3694 mono_secman_inheritancedemand_class (class, class->parent);
3697 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3698 mono_security_core_clr_check_inheritance (class);
3700 mono_stats.initialized_class_count++;
3702 if (class->generic_class && !class->generic_class->is_dynamic) {
3703 MonoClass *gklass = class->generic_class->container_class;
3705 mono_stats.generic_class_count++;
3707 class->method = gklass->method;
3708 class->field = gklass->field;
3710 mono_class_init (gklass);
3711 // FIXME: Why is this needed ?
3712 mono_class_setup_methods (gklass);
3714 if (MONO_CLASS_IS_INTERFACE (class))
3715 class->interface_id = mono_get_unique_iid (class);
3718 if (class->parent && !class->parent->inited)
3719 mono_class_init (class->parent);
3721 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3723 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3724 class->nested_classes_inited = TRUE;
3727 * Computes the size used by the fields, and their locations
3729 if (has_cached_info) {
3730 class->instance_size = cached_info.instance_size;
3731 class->sizes.class_size = cached_info.class_size;
3732 class->packing_size = cached_info.packing_size;
3733 class->min_align = cached_info.min_align;
3734 class->blittable = cached_info.blittable;
3735 class->has_references = cached_info.has_references;
3736 class->has_static_refs = cached_info.has_static_refs;
3737 class->no_special_static_fields = cached_info.no_special_static_fields;
3740 if (!class->size_inited){
3741 mono_class_setup_fields (class);
3742 if (class->exception_type || mono_loader_get_last_error ()){
3743 class_init_ok = FALSE;
3748 /* Initialize arrays */
3750 class->method.count = 3 + (class->rank > 1? 2: 1);
3752 if (class->interface_count) {
3753 int count_generic = generic_array_methods (class);
3754 class->method.count += class->interface_count * count_generic;
3758 mono_class_setup_supertypes (class);
3761 initialize_object_slots (class);
3764 * Initialize the rest of the data without creating a generic vtable if possible.
3765 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3766 * also avoid computing a generic vtable.
3768 if (has_cached_info) {
3770 class->vtable_size = cached_info.vtable_size;
3771 class->has_finalize = cached_info.has_finalize;
3772 class->ghcimpl = cached_info.ghcimpl;
3773 class->has_cctor = cached_info.has_cctor;
3774 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3775 static int szarray_vtable_size = 0;
3778 if (!szarray_vtable_size) {
3779 mono_class_setup_vtable (class);
3780 szarray_vtable_size = class->vtable_size;
3782 class->vtable_size = szarray_vtable_size;
3784 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3785 MonoClass *gklass = class->generic_class->container_class;
3787 /* Generic instance case */
3788 class->ghcimpl = gklass->ghcimpl;
3789 class->has_finalize = gklass->has_finalize;
3790 class->has_cctor = gklass->has_cctor;
3792 mono_class_setup_vtable (gklass);
3793 if (gklass->exception_type)
3796 class->vtable_size = gklass->vtable_size;
3800 /* ghcimpl is not currently used
3802 if (class->parent) {
3803 MonoMethod *cmethod = class->vtable [ghc_slot];
3804 if (cmethod->is_inflated)
3805 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3806 if (cmethod == default_ghc) {
3812 /* Interfaces and valuetypes are not supposed to have finalizers */
3813 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3814 MonoMethod *cmethod = NULL;
3816 if (class->parent && class->parent->has_finalize) {
3817 class->has_finalize = 1;
3819 if (class->type_token) {
3820 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3821 } else if (class->parent) {
3822 /* FIXME: Optimize this */
3823 mono_class_setup_vtable (class);
3824 if (class->exception_type || mono_loader_get_last_error ())
3826 cmethod = class->vtable [finalize_slot];
3830 /* Check that this is really the finalizer method */
3831 mono_class_setup_vtable (class);
3832 if (class->exception_type || mono_loader_get_last_error ())
3835 class->has_finalize = 0;
3836 if (class->parent) {
3837 cmethod = class->vtable [finalize_slot];
3838 if (cmethod->is_inflated)
3839 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3840 if (cmethod != default_finalize) {
3841 class->has_finalize = 1;
3848 /* C# doesn't allow interfaces to have cctors */
3849 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3850 MonoMethod *cmethod = NULL;
3852 if (class->type_token) {
3853 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3854 /* The find_method function ignores the 'flags' argument */
3855 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3856 class->has_cctor = 1;
3858 mono_class_setup_methods (class);
3860 for (i = 0; i < class->method.count; ++i) {
3861 MonoMethod *method = class->methods [i];
3862 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3863 (strcmp (".cctor", method->name) == 0)) {
3864 class->has_cctor = 1;
3872 if (!mono_setup_vtable_in_class_init) {
3874 * This is an embedding API break, since the caller might assume that
3875 * mono_class_init () constructs a generic vtable, so vtable construction errors
3876 * are visible right after the mono_class_init (), and not after
3877 * mono_class_vtable ().
3879 if (class->parent) {
3880 /* This will compute class->parent->vtable_size for some classes */
3881 mono_class_init (class->parent);
3882 if (class->parent->exception_type || mono_loader_get_last_error ())
3884 if (!class->parent->vtable_size) {
3885 /* FIXME: Get rid of this somehow */
3886 mono_class_setup_vtable (class->parent);
3887 if (class->parent->exception_type || mono_loader_get_last_error ())
3890 setup_interface_offsets (class, class->parent->vtable_size);
3892 setup_interface_offsets (class, 0);
3895 mono_class_setup_vtable (class);
3897 if (MONO_CLASS_IS_INTERFACE (class))
3898 setup_interface_offsets (class, 0);
3901 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3902 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
3903 class_init_ok = FALSE;
3909 class_init_ok = FALSE;
3912 /* Because of the double-checking locking pattern */
3913 mono_memory_barrier ();
3915 class->init_pending = 0;
3917 if (mono_loader_get_last_error ()) {
3918 if (class->exception_type == MONO_EXCEPTION_NONE)
3919 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3921 mono_loader_clear_error ();
3924 mono_loader_unlock ();
3926 if (mono_debugger_class_init_func)
3927 mono_debugger_class_init_func (class);
3929 return class_init_ok;
3933 is_corlib_image (MonoImage *image)
3935 /* FIXME: allow the dynamic case for our compilers and with full trust */
3937 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3939 return image == mono_defaults.corlib;
3943 * LOCKING: this assumes the loader lock is held
3946 mono_class_setup_mono_type (MonoClass *class)
3948 const char *name = class->name;
3949 const char *nspace = class->name_space;
3950 gboolean is_corlib = is_corlib_image (class->image);
3952 class->this_arg.byref = 1;
3953 class->this_arg.data.klass = class;
3954 class->this_arg.type = MONO_TYPE_CLASS;
3955 class->byval_arg.data.klass = class;
3956 class->byval_arg.type = MONO_TYPE_CLASS;
3958 if (is_corlib && !strcmp (nspace, "System")) {
3959 if (!strcmp (name, "ValueType")) {
3961 * do not set the valuetype bit for System.ValueType.
3962 * class->valuetype = 1;
3964 class->blittable = TRUE;
3965 } else if (!strcmp (name, "Enum")) {
3967 * do not set the valuetype bit for System.Enum.
3968 * class->valuetype = 1;
3970 class->valuetype = 0;
3971 class->enumtype = 0;
3972 } else if (!strcmp (name, "Object")) {
3973 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3974 } else if (!strcmp (name, "String")) {
3975 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3976 } else if (!strcmp (name, "TypedReference")) {
3977 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3981 if (class->valuetype) {
3982 int t = MONO_TYPE_VALUETYPE;
3984 if (is_corlib && !strcmp (nspace, "System")) {
3987 if (!strcmp (name, "Boolean")) {
3988 t = MONO_TYPE_BOOLEAN;
3989 } else if (!strcmp(name, "Byte")) {
3991 class->blittable = TRUE;
3995 if (!strcmp (name, "Char")) {
4000 if (!strcmp (name, "Double")) {
4002 class->blittable = TRUE;
4006 if (!strcmp (name, "Int32")) {
4008 class->blittable = TRUE;
4009 } else if (!strcmp(name, "Int16")) {
4011 class->blittable = TRUE;
4012 } else if (!strcmp(name, "Int64")) {
4014 class->blittable = TRUE;
4015 } else if (!strcmp(name, "IntPtr")) {
4017 class->blittable = TRUE;
4021 if (!strcmp (name, "Single")) {
4023 class->blittable = TRUE;
4024 } else if (!strcmp(name, "SByte")) {
4026 class->blittable = TRUE;
4030 if (!strcmp (name, "UInt32")) {
4032 class->blittable = TRUE;
4033 } else if (!strcmp(name, "UInt16")) {
4035 class->blittable = TRUE;
4036 } else if (!strcmp(name, "UInt64")) {
4038 class->blittable = TRUE;
4039 } else if (!strcmp(name, "UIntPtr")) {
4041 class->blittable = TRUE;
4045 if (!strcmp (name, "TypedReference")) {
4046 t = MONO_TYPE_TYPEDBYREF;
4047 class->blittable = TRUE;
4051 if (!strcmp (name, "Void")) {
4059 class->this_arg.type = class->byval_arg.type = t;
4062 if (MONO_CLASS_IS_INTERFACE (class))
4063 class->interface_id = mono_get_unique_iid (class);
4068 * LOCKING: this assumes the loader lock is held
4071 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4073 gboolean system_namespace;
4074 gboolean is_corlib = is_corlib_image (class->image);
4076 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4078 /* if root of the hierarchy */
4079 if (system_namespace && !strcmp (class->name, "Object")) {
4080 class->parent = NULL;
4081 class->instance_size = sizeof (MonoObject);
4084 if (!strcmp (class->name, "<Module>")) {
4085 class->parent = NULL;
4086 class->instance_size = 0;
4090 if (!MONO_CLASS_IS_INTERFACE (class)) {
4091 /* Imported COM Objects always derive from __ComObject. */
4092 if (MONO_CLASS_IS_IMPORT (class)) {
4093 mono_init_com_types ();
4094 if (parent == mono_defaults.object_class)
4095 parent = mono_defaults.com_object_class;
4098 /* set the parent to something useful and safe, but mark the type as broken */
4099 parent = mono_defaults.object_class;
4100 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4103 class->parent = parent;
4105 if (parent->generic_class && !parent->name) {
4107 * If the parent is a generic instance, we may get
4108 * called before it is fully initialized, especially
4109 * before it has its name.
4114 class->marshalbyref = parent->marshalbyref;
4115 class->contextbound = parent->contextbound;
4116 class->delegate = parent->delegate;
4117 if (MONO_CLASS_IS_IMPORT (class))
4118 class->is_com_object = 1;
4120 class->is_com_object = parent->is_com_object;
4122 if (system_namespace) {
4123 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4124 class->marshalbyref = 1;
4126 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4127 class->contextbound = 1;
4129 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4130 class->delegate = 1;
4133 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4134 (strcmp (class->parent->name_space, "System") == 0)))
4135 class->valuetype = 1;
4136 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4137 class->valuetype = class->enumtype = 1;
4139 /*class->enumtype = class->parent->enumtype; */
4140 mono_class_setup_supertypes (class);
4142 /* initialize com types if COM interfaces are present */
4143 if (MONO_CLASS_IS_IMPORT (class))
4144 mono_init_com_types ();
4145 class->parent = NULL;
4151 * mono_class_setup_supertypes:
4154 * Build the data structure needed to make fast type checks work.
4155 * This currently sets two fields in @class:
4156 * - idepth: distance between @class and System.Object in the type
4158 * - supertypes: array of classes: each element has a class in the hierarchy
4159 * starting from @class up to System.Object
4161 * LOCKING: this assumes the loader lock is held
4164 mono_class_setup_supertypes (MonoClass *class)
4168 if (class->supertypes)
4171 if (class->parent && !class->parent->supertypes)
4172 mono_class_setup_supertypes (class->parent);
4174 class->idepth = class->parent->idepth + 1;
4178 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4179 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4181 if (class->parent) {
4182 class->supertypes [class->idepth - 1] = class;
4183 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4185 class->supertypes [0] = class;
4190 * mono_class_create_from_typedef:
4191 * @image: image where the token is valid
4192 * @type_token: typedef token
4194 * Create the MonoClass* representing the specified type token.
4195 * @type_token must be a TypeDef token.
4198 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4200 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4201 MonoClass *class, *parent = NULL;
4202 guint32 cols [MONO_TYPEDEF_SIZE];
4203 guint32 cols_next [MONO_TYPEDEF_SIZE];
4204 guint tidx = mono_metadata_token_index (type_token);
4205 MonoGenericContext *context = NULL;
4206 const char *name, *nspace;
4208 MonoClass **interfaces;
4209 guint32 field_last, method_last;
4210 guint32 nesting_tokeen;
4212 mono_loader_lock ();
4214 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4215 mono_loader_unlock ();
4219 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4221 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4223 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4224 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4226 class = mono_image_alloc0 (image, sizeof (MonoClass));
4229 class->name_space = nspace;
4231 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4233 class->image = image;
4234 class->type_token = type_token;
4235 class->flags = cols [MONO_TYPEDEF_FLAGS];
4237 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4239 classes_size += sizeof (MonoClass);
4242 * Check whether we're a generic type definition.
4244 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4245 if (class->generic_container) {
4246 class->is_generic = 1;
4247 class->generic_container->owner.klass = class;
4248 context = &class->generic_container->context;
4251 if (cols [MONO_TYPEDEF_EXTENDS]) {
4252 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
4254 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
4255 /*WARNING: this must satisfy mono_metadata_type_hash*/
4256 class->this_arg.byref = 1;
4257 class->this_arg.data.klass = class;
4258 class->this_arg.type = MONO_TYPE_CLASS;
4259 class->byval_arg.data.klass = class;
4260 class->byval_arg.type = MONO_TYPE_CLASS;
4262 parent = mono_class_get_full (image, parent_token, context);
4264 if (parent == NULL){
4265 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4266 mono_loader_unlock ();
4267 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4272 /* do this early so it's available for interfaces in setup_mono_type () */
4273 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4274 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4276 mono_class_setup_parent (class, parent);
4278 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4279 mono_class_setup_mono_type (class);
4281 if (!class->enumtype) {
4282 if (!mono_metadata_interfaces_from_typedef_full (
4283 image, type_token, &interfaces, &icount, context)){
4284 mono_loader_unlock ();
4285 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4289 class->interfaces = interfaces;
4290 class->interface_count = icount;
4291 class->interfaces_inited = 1;
4294 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4298 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4302 class->cast_class = class->element_class = class;
4304 /*g_print ("Load class %s\n", name);*/
4307 * Compute the field and method lists
4309 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4310 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4312 if (tt->rows > tidx){
4313 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4314 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4315 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4317 field_last = image->tables [MONO_TABLE_FIELD].rows;
4318 method_last = image->tables [MONO_TABLE_METHOD].rows;
4321 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4322 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4323 class->field.count = field_last - class->field.first;
4325 class->field.count = 0;
4327 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4328 class->method.count = method_last - class->method.first;
4330 class->method.count = 0;
4332 /* reserve space to store vector pointer in arrays */
4333 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4334 class->instance_size += 2 * sizeof (gpointer);
4335 g_assert (class->field.count == 0);
4338 if (class->enumtype) {
4339 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
4340 if (!enum_basetype) {
4341 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4342 mono_loader_unlock ();
4345 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
4349 * If we're a generic type definition, load the constraints.
4350 * We must do this after the class has been constructed to make certain recursive scenarios
4353 if (class->generic_container)
4354 mono_metadata_load_generic_param_constraints (
4355 image, type_token, class->generic_container);
4357 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4358 if (!strncmp (name, "Vector", 6))
4359 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");
4362 mono_loader_unlock ();
4364 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4369 /** is klass Nullable<T>? */
4371 mono_class_is_nullable (MonoClass *klass)
4373 return klass->generic_class != NULL &&
4374 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4378 /** if klass is T? return T */
4380 mono_class_get_nullable_param (MonoClass *klass)
4382 g_assert (mono_class_is_nullable (klass));
4383 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4387 * Create the `MonoClass' for an instantiation of a generic type.
4388 * We only do this if we actually need it.
4391 mono_generic_class_get_class (MonoGenericClass *gclass)
4393 MonoClass *klass, *gklass;
4395 mono_loader_lock ();
4396 if (gclass->cached_class) {
4397 mono_loader_unlock ();
4398 return gclass->cached_class;
4401 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4402 klass = gclass->cached_class;
4404 gklass = gclass->container_class;
4406 if (gklass->nested_in) {
4408 * FIXME: the nested type context should include everything the
4409 * nesting context should have, but it may also have additional
4410 * generic parameters...
4412 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
4413 mono_generic_class_get_context (gclass));
4416 klass->name = gklass->name;
4417 klass->name_space = gklass->name_space;
4419 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4421 klass->image = gklass->image;
4422 klass->flags = gklass->flags;
4423 klass->type_token = gklass->type_token;
4424 klass->field.count = gklass->field.count;
4426 klass->is_inflated = 1;
4427 klass->generic_class = gclass;
4429 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4430 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4431 klass->this_arg.byref = TRUE;
4432 klass->enumtype = gklass->enumtype;
4433 klass->valuetype = gklass->valuetype;
4435 klass->cast_class = klass->element_class = klass;
4437 if (mono_class_is_nullable (klass))
4438 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4441 * We're not interested in the nested classes of a generic instance.
4442 * We use the generic type definition to look for nested classes.
4445 if (gklass->parent) {
4446 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
4450 mono_class_setup_parent (klass, klass->parent);
4452 if (klass->enumtype) {
4453 klass->cast_class = gklass->cast_class;
4454 klass->element_class = gklass->element_class;
4457 if (gclass->is_dynamic) {
4460 mono_class_setup_supertypes (klass);
4462 if (klass->enumtype) {
4464 * For enums, gklass->fields might not been set, but instance_size etc. is
4465 * already set in mono_reflection_create_internal_class (). For non-enums,
4466 * these will be computed normally in mono_class_layout_fields ().
4468 klass->instance_size = gklass->instance_size;
4469 klass->sizes.class_size = gklass->sizes.class_size;
4470 klass->size_inited = 1;
4474 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4476 inflated_classes ++;
4477 inflated_classes_size += sizeof (MonoClass);
4479 mono_loader_unlock ();
4485 * LOCKING: Acquires the loader lock.
4488 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4490 MonoGenericContainer *container;
4491 MonoClass *klass, **ptr;
4494 mono_loader_lock ();
4496 if (param->pklass) {
4497 mono_loader_unlock ();
4498 return param->pklass;
4501 container = mono_generic_param_owner (param);
4502 if (!image && container) {
4504 MonoMethod *method = container->owner.method;
4505 image = (method && method->klass) ? method->klass->image : NULL;
4507 MonoClass *klass = container->owner.klass;
4508 // FIXME: 'klass' should not be null
4509 // But, monodis creates GenericContainers without associating a owner to it
4510 image = klass ? klass->image : NULL;
4515 image = mono_defaults.corlib;
4517 klass = mono_image_alloc0 (image, sizeof (MonoClass));
4519 classes_size += sizeof (MonoClass);
4522 klass->name = param->name;
4524 int n = mono_generic_param_num (param);
4525 klass->name = mono_image_alloc0 (image, 16);
4526 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", n);
4528 klass->name_space = "";
4529 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4531 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4535 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4536 klass->parent = param->constraints [0];
4538 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4539 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4541 klass->parent = mono_defaults.object_class;
4543 if (count - pos > 0) {
4544 klass->interface_count = count - pos;
4545 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4546 for (i = pos; i < count; i++)
4547 klass->interfaces [i - pos] = param->constraints [i];
4551 image = mono_defaults.corlib;
4553 klass->image = image;
4555 klass->inited = TRUE;
4556 klass->cast_class = klass->element_class = klass;
4557 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4559 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4560 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4561 klass->this_arg.byref = TRUE;
4565 guint32 cols [MONO_GENERICPARAM_SIZE];
4566 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4569 if (is_mvar && container->owner.method)
4570 i = mono_metadata_get_generic_param_row (image, container->owner.method->token, &owner);
4571 else if (!is_mvar && container->owner.klass)
4572 i = mono_metadata_get_generic_param_row (image, container->owner.klass->type_token, &owner);
4575 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4577 if (cols [MONO_GENERICPARAM_NUMBER] == mono_generic_param_num (param)) {
4578 klass->sizes.generic_param_token = i | MONO_TOKEN_GENERIC_PARAM;
4581 if (++i > tdef->rows)
4583 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4584 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4588 mono_class_setup_supertypes (klass);
4590 mono_memory_barrier ();
4592 param->pklass = klass;
4594 mono_loader_unlock ();
4596 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4602 mono_ptr_class_get (MonoType *type)
4605 MonoClass *el_class;
4609 el_class = mono_class_from_mono_type (type);
4610 image = el_class->image;
4612 mono_loader_lock ();
4614 if (!image->ptr_cache)
4615 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4617 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4618 mono_loader_unlock ();
4621 result = mono_image_alloc0 (image, sizeof (MonoClass));
4623 classes_size += sizeof (MonoClass);
4625 result->parent = NULL; /* no parent for PTR types */
4626 result->name_space = el_class->name_space;
4627 name = g_strdup_printf ("%s*", el_class->name);
4628 result->name = mono_image_strdup (image, name);
4631 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4633 result->image = el_class->image;
4634 result->inited = TRUE;
4635 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4636 /* Can pointers get boxed? */
4637 result->instance_size = sizeof (gpointer);
4638 result->cast_class = result->element_class = el_class;
4639 result->blittable = TRUE;
4641 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4642 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
4643 result->this_arg.byref = TRUE;
4645 mono_class_setup_supertypes (result);
4647 g_hash_table_insert (image->ptr_cache, el_class, result);
4649 mono_loader_unlock ();
4651 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4657 mono_fnptr_class_get (MonoMethodSignature *sig)
4660 static GHashTable *ptr_hash = NULL;
4662 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4664 mono_loader_lock ();
4667 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4669 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4670 mono_loader_unlock ();
4673 result = g_new0 (MonoClass, 1);
4675 result->parent = NULL; /* no parent for PTR types */
4676 result->name_space = "System";
4677 result->name = "MonoFNPtrFakeClass";
4679 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4681 result->image = mono_defaults.corlib; /* need to fix... */
4682 result->inited = TRUE;
4683 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4684 /* Can pointers get boxed? */
4685 result->instance_size = sizeof (gpointer);
4686 result->cast_class = result->element_class = result;
4687 result->blittable = TRUE;
4689 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4690 result->this_arg.data.method = result->byval_arg.data.method = sig;
4691 result->this_arg.byref = TRUE;
4692 result->blittable = TRUE;
4694 mono_class_setup_supertypes (result);
4696 g_hash_table_insert (ptr_hash, sig, result);
4698 mono_loader_unlock ();
4700 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4706 mono_class_from_mono_type (MonoType *type)
4708 switch (type->type) {
4709 case MONO_TYPE_OBJECT:
4710 return type->data.klass? type->data.klass: mono_defaults.object_class;
4711 case MONO_TYPE_VOID:
4712 return type->data.klass? type->data.klass: mono_defaults.void_class;
4713 case MONO_TYPE_BOOLEAN:
4714 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4715 case MONO_TYPE_CHAR:
4716 return type->data.klass? type->data.klass: mono_defaults.char_class;
4718 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4720 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4722 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4724 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4726 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4728 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4730 return type->data.klass? type->data.klass: mono_defaults.int_class;
4732 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4734 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4736 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4738 return type->data.klass? type->data.klass: mono_defaults.single_class;
4740 return type->data.klass? type->data.klass: mono_defaults.double_class;
4741 case MONO_TYPE_STRING:
4742 return type->data.klass? type->data.klass: mono_defaults.string_class;
4743 case MONO_TYPE_TYPEDBYREF:
4744 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4745 case MONO_TYPE_ARRAY:
4746 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4748 return mono_ptr_class_get (type->data.type);
4749 case MONO_TYPE_FNPTR:
4750 return mono_fnptr_class_get (type->data.method);
4751 case MONO_TYPE_SZARRAY:
4752 return mono_array_class_get (type->data.klass, 1);
4753 case MONO_TYPE_CLASS:
4754 case MONO_TYPE_VALUETYPE:
4755 return type->data.klass;
4756 case MONO_TYPE_GENERICINST:
4757 return mono_generic_class_get_class (type->data.generic_class);
4759 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4760 case MONO_TYPE_MVAR:
4761 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4763 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4764 g_assert_not_reached ();
4771 * mono_type_retrieve_from_typespec
4772 * @image: context where the image is created
4773 * @type_spec: typespec token
4774 * @context: the generic context used to evaluate generic instantiations in
4777 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4779 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4782 if (context && (context->class_inst || context->method_inst)) {
4783 MonoType *inflated = inflate_generic_type (NULL, t, context);
4786 *did_inflate = TRUE;
4793 * mono_class_create_from_typespec
4794 * @image: context where the image is created
4795 * @type_spec: typespec token
4796 * @context: the generic context used to evaluate generic instantiations in
4799 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4802 gboolean inflated = FALSE;
4803 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4806 ret = mono_class_from_mono_type (t);
4808 mono_metadata_free_type (t);
4813 * mono_bounded_array_class_get:
4814 * @element_class: element class
4815 * @rank: the dimension of the array class
4816 * @bounded: whenever the array has non-zero bounds
4818 * Returns: a class object describing the array with element type @element_type and
4822 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4826 MonoClass *parent = NULL;
4827 GSList *list, *rootlist;
4830 gboolean corlib_type = FALSE;
4832 g_assert (rank <= 255);
4835 /* bounded only matters for one-dimensional arrays */
4838 image = eclass->image;
4840 if (rank == 1 && !bounded) {
4842 * This case is very frequent not just during compilation because of calls
4843 * from mono_class_from_mono_type (), mono_array_new (),
4844 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
4846 EnterCriticalSection (&image->szarray_cache_lock);
4847 if (!image->szarray_cache)
4848 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4849 class = g_hash_table_lookup (image->szarray_cache, eclass);
4850 LeaveCriticalSection (&image->szarray_cache_lock);
4854 mono_loader_lock ();
4856 mono_loader_lock ();
4858 if (!image->array_cache)
4859 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4861 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4862 for (; list; list = list->next) {
4864 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4865 mono_loader_unlock ();
4872 /* for the building corlib use System.Array from it */
4873 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4874 parent = mono_class_from_name (image, "System", "Array");
4877 parent = mono_defaults.array_class;
4878 if (!parent->inited)
4879 mono_class_init (parent);
4882 class = mono_image_alloc0 (image, sizeof (MonoClass));
4884 class->image = image;
4885 class->name_space = eclass->name_space;
4886 nsize = strlen (eclass->name);
4887 name = g_malloc (nsize + 2 + rank + 1);
4888 memcpy (name, eclass->name, nsize);
4891 memset (name + nsize + 1, ',', rank - 1);
4893 name [nsize + rank] = '*';
4894 name [nsize + rank + bounded] = ']';
4895 name [nsize + rank + bounded + 1] = 0;
4896 class->name = mono_image_strdup (image, name);
4899 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4901 classes_size += sizeof (MonoClass);
4903 class->type_token = 0;
4904 /* all arrays are marked serializable and sealed, bug #42779 */
4905 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4906 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4907 class->parent = parent;
4908 class->instance_size = mono_class_instance_size (class->parent);
4910 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
4911 if (!eclass->reflection_info || eclass->wastypebuilder) {
4912 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4913 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4915 /* element_size -1 is ok as this is not an instantitable type*/
4916 class->sizes.element_size = -1;
4918 class->sizes.element_size = mono_class_array_element_size (eclass);
4920 mono_class_setup_supertypes (class);
4922 if (eclass->generic_class)
4923 mono_class_init (eclass);
4924 if (!eclass->size_inited)
4925 mono_class_setup_fields (eclass);
4926 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4930 if (eclass->enumtype)
4931 class->cast_class = eclass->element_class;
4933 class->cast_class = eclass;
4935 class->element_class = eclass;
4937 if ((rank > 1) || bounded) {
4938 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
4939 class->byval_arg.type = MONO_TYPE_ARRAY;
4940 class->byval_arg.data.array = at;
4941 at->eklass = eclass;
4943 /* FIXME: complete.... */
4945 class->byval_arg.type = MONO_TYPE_SZARRAY;
4946 class->byval_arg.data.klass = eclass;
4948 class->this_arg = class->byval_arg;
4949 class->this_arg.byref = 1;
4954 class->generic_container = eclass->generic_container;
4956 if (rank == 1 && !bounded) {
4957 MonoClass *prev_class;
4959 EnterCriticalSection (&image->szarray_cache_lock);
4960 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
4962 /* Someone got in before us */
4965 g_hash_table_insert (image->szarray_cache, eclass, class);
4966 LeaveCriticalSection (&image->szarray_cache_lock);
4968 list = g_slist_append (rootlist, class);
4969 g_hash_table_insert (image->array_cache, eclass, list);
4972 mono_loader_unlock ();
4974 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4980 * mono_array_class_get:
4981 * @element_class: element class
4982 * @rank: the dimension of the array class
4984 * Returns: a class object describing the array with element type @element_type and
4988 mono_array_class_get (MonoClass *eclass, guint32 rank)
4990 return mono_bounded_array_class_get (eclass, rank, FALSE);
4994 * mono_class_instance_size:
4997 * Returns: the size of an object instance
5000 mono_class_instance_size (MonoClass *klass)
5002 if (!klass->size_inited)
5003 mono_class_init (klass);
5005 return klass->instance_size;
5009 * mono_class_min_align:
5012 * Returns: minimm alignment requirements
5015 mono_class_min_align (MonoClass *klass)
5017 if (!klass->size_inited)
5018 mono_class_init (klass);
5020 return klass->min_align;
5024 * mono_class_value_size:
5027 * This function is used for value types, and return the
5028 * space and the alignment to store that kind of value object.
5030 * Returns: the size of a value of kind @klass
5033 mono_class_value_size (MonoClass *klass, guint32 *align)
5037 /* fixme: check disable, because we still have external revereces to
5038 * mscorlib and Dummy Objects
5040 /*g_assert (klass->valuetype);*/
5042 size = mono_class_instance_size (klass) - sizeof (MonoObject);
5045 *align = klass->min_align;
5051 * mono_class_data_size:
5054 * Returns: the size of the static class data
5057 mono_class_data_size (MonoClass *klass)
5060 mono_class_init (klass);
5062 /* in arrays, sizes.class_size is unioned with element_size
5063 * and arrays have no static fields
5067 return klass->sizes.class_size;
5071 * Auxiliary routine to mono_class_get_field
5073 * Takes a field index instead of a field token.
5075 static MonoClassField *
5076 mono_class_get_field_idx (MonoClass *class, int idx)
5078 mono_class_setup_fields_locking (class);
5081 if (class->image->uncompressed_metadata) {
5083 * class->field.first points to the FieldPtr table, while idx points into the
5084 * Field table, so we have to do a search.
5086 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
5089 for (i = 0; i < class->field.count; ++i)
5090 if (mono_field_get_name (&class->fields [i]) == name)
5091 return &class->fields [i];
5092 g_assert_not_reached ();
5094 if (class->field.count) {
5095 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
5096 return &class->fields [idx - class->field.first];
5100 class = class->parent;
5106 * mono_class_get_field:
5107 * @class: the class to lookup the field.
5108 * @field_token: the field token
5110 * Returns: A MonoClassField representing the type and offset of
5111 * the field, or a NULL value if the field does not belong to this
5115 mono_class_get_field (MonoClass *class, guint32 field_token)
5117 int idx = mono_metadata_token_index (field_token);
5119 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5121 return mono_class_get_field_idx (class, idx - 1);
5125 * mono_class_get_field_from_name:
5126 * @klass: the class to lookup the field.
5127 * @name: the field name
5129 * Search the class @klass and it's parents for a field with the name @name.
5131 * Returns: the MonoClassField pointer of the named field or NULL
5134 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5138 mono_class_setup_fields_locking (klass);
5140 for (i = 0; i < klass->field.count; ++i) {
5141 if (strcmp (name, mono_field_get_name (&klass->fields [i])) == 0)
5142 return &klass->fields [i];
5144 klass = klass->parent;
5150 * mono_class_get_field_token:
5151 * @field: the field we need the token of
5153 * Get the token of a field. Note that the tokesn is only valid for the image
5154 * the field was loaded from. Don't use this function for fields in dynamic types.
5156 * Returns: the token representing the field in the image it was loaded from.
5159 mono_class_get_field_token (MonoClassField *field)
5161 MonoClass *klass = field->parent;
5164 mono_class_setup_fields_locking (klass);
5166 for (i = 0; i < klass->field.count; ++i) {
5167 if (&klass->fields [i] == field) {
5168 int idx = klass->field.first + i + 1;
5170 if (klass->image->uncompressed_metadata)
5171 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5172 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5175 klass = klass->parent;
5178 g_assert_not_reached ();
5183 mono_field_get_index (MonoClassField *field)
5185 int index = field - field->parent->fields;
5187 g_assert (index >= 0 && index < field->parent->field.count);
5193 * mono_class_get_field_default_value:
5195 * Return the default value of the field as a pointer into the metadata blob.
5198 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5201 guint32 constant_cols [MONO_CONSTANT_SIZE];
5203 MonoClass *klass = field->parent;
5205 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5207 if (!klass->ext || !klass->ext->field_def_values) {
5208 mono_loader_lock ();
5209 mono_class_alloc_ext (klass);
5210 if (!klass->ext->field_def_values)
5211 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5212 mono_loader_unlock ();
5215 field_index = mono_field_get_index (field);
5217 if (!klass->ext->field_def_values [field_index].data) {
5218 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5220 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5222 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5223 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5224 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5227 *def_type = klass->ext->field_def_values [field_index].def_type;
5228 return klass->ext->field_def_values [field_index].data;
5232 mono_class_get_event_token (MonoEvent *event)
5234 MonoClass *klass = event->parent;
5239 for (i = 0; i < klass->ext->event.count; ++i) {
5240 if (&klass->ext->events [i] == event)
5241 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
5244 klass = klass->parent;
5247 g_assert_not_reached ();
5252 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5256 gpointer iter = NULL;
5257 while ((p = mono_class_get_properties (klass, &iter))) {
5258 if (! strcmp (name, p->name))
5261 klass = klass->parent;
5267 mono_class_get_property_token (MonoProperty *prop)
5269 MonoClass *klass = prop->parent;
5273 gpointer iter = NULL;
5274 while ((p = mono_class_get_properties (klass, &iter))) {
5275 if (&klass->ext->properties [i] == prop)
5276 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
5280 klass = klass->parent;
5283 g_assert_not_reached ();
5288 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5290 const char *name, *nspace;
5292 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5294 switch (type_token & 0xff000000){
5295 case MONO_TOKEN_TYPE_DEF: {
5296 guint32 cols [MONO_TYPEDEF_SIZE];
5297 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5298 guint tidx = mono_metadata_token_index (type_token);
5300 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5301 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5302 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5303 if (strlen (nspace) == 0)
5304 return g_strdup_printf ("%s", name);
5306 return g_strdup_printf ("%s.%s", nspace, name);
5309 case MONO_TOKEN_TYPE_REF: {
5310 guint32 cols [MONO_TYPEREF_SIZE];
5311 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5313 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5314 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5315 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5316 if (strlen (nspace) == 0)
5317 return g_strdup_printf ("%s", name);
5319 return g_strdup_printf ("%s.%s", nspace, name);
5322 case MONO_TOKEN_TYPE_SPEC:
5323 return g_strdup_printf ("Typespec 0x%08x", type_token);
5325 g_assert_not_reached ();
5332 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5335 return g_strdup_printf ("DynamicAssembly %s", image->name);
5337 switch (type_token & 0xff000000){
5338 case MONO_TOKEN_TYPE_DEF:
5339 return mono_stringify_assembly_name (&image->assembly->aname);
5341 case MONO_TOKEN_TYPE_REF: {
5342 MonoAssemblyName aname;
5343 guint32 cols [MONO_TYPEREF_SIZE];
5344 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5347 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5349 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5350 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5351 case MONO_RESOLTION_SCOPE_MODULE:
5353 return g_strdup ("");
5354 case MONO_RESOLTION_SCOPE_MODULEREF:
5356 return g_strdup ("");
5357 case MONO_RESOLTION_SCOPE_TYPEREF:
5359 return g_strdup ("");
5360 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5361 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5362 return mono_stringify_assembly_name (&aname);
5364 g_assert_not_reached ();
5368 case MONO_TOKEN_TYPE_SPEC:
5370 return g_strdup ("");
5372 g_assert_not_reached ();
5379 * mono_class_get_full:
5380 * @image: the image where the class resides
5381 * @type_token: the token for the class
5382 * @context: the generic context used to evaluate generic instantiations in
5384 * Returns: the MonoClass that represents @type_token in @image
5387 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5389 MonoClass *class = NULL;
5391 if (image->dynamic) {
5392 int table = mono_metadata_token_table (type_token);
5394 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5395 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5398 return mono_lookup_dynamic_token (image, type_token, context);
5401 switch (type_token & 0xff000000){
5402 case MONO_TOKEN_TYPE_DEF:
5403 class = mono_class_create_from_typedef (image, type_token);
5405 case MONO_TOKEN_TYPE_REF:
5406 class = mono_class_from_typeref (image, type_token);
5408 case MONO_TOKEN_TYPE_SPEC:
5409 class = mono_class_create_from_typespec (image, type_token, context);
5412 g_warning ("unknown token type %x", type_token & 0xff000000);
5413 g_assert_not_reached ();
5417 char *name = mono_class_name_from_token (image, type_token);
5418 char *assembly = mono_assembly_name_from_token (image, type_token);
5419 mono_loader_set_error_type_load (name, assembly);
5427 * mono_type_get_full:
5428 * @image: the image where the type resides
5429 * @type_token: the token for the type
5430 * @context: the generic context used to evaluate generic instantiations in
5432 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5434 * Returns: the MonoType that represents @type_token in @image
5437 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5439 MonoType *type = NULL;
5440 gboolean inflated = FALSE;
5442 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5444 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5446 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5447 MonoClass *class = mono_class_get_full (image, type_token, context);
5448 return class ? mono_class_get_type (class) : NULL;
5451 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5454 char *name = mono_class_name_from_token (image, type_token);
5455 char *assembly = mono_assembly_name_from_token (image, type_token);
5457 mono_metadata_free_type (type);
5458 mono_loader_set_error_type_load (name, assembly);
5462 MonoType *tmp = type;
5463 type = mono_class_get_type (mono_class_from_mono_type (type));
5464 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5465 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5466 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5468 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5470 if (type->type != tmp->type)
5473 mono_metadata_free_type (tmp);
5480 mono_class_get (MonoImage *image, guint32 type_token)
5482 return mono_class_get_full (image, type_token, NULL);
5486 * mono_image_init_name_cache:
5488 * Initializes the class name cache stored in image->name_cache.
5490 * LOCKING: Acquires the loader lock.
5493 mono_image_init_name_cache (MonoImage *image)
5495 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5496 guint32 cols [MONO_TYPEDEF_SIZE];
5499 guint32 i, visib, nspace_index;
5500 GHashTable *name_cache2, *nspace_table;
5502 mono_loader_lock ();
5504 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5506 if (image->dynamic) {
5507 mono_loader_unlock ();
5511 /* Temporary hash table to avoid lookups in the nspace_table */
5512 name_cache2 = g_hash_table_new (NULL, NULL);
5514 for (i = 1; i <= t->rows; ++i) {
5515 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5516 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5518 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5519 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5521 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5523 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5524 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5526 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5527 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5528 if (!nspace_table) {
5529 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5530 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5531 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5534 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5537 /* Load type names from EXPORTEDTYPES table */
5539 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5540 guint32 cols [MONO_EXP_TYPE_SIZE];
5543 for (i = 0; i < t->rows; ++i) {
5544 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5545 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5546 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5548 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5549 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5550 if (!nspace_table) {
5551 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5552 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5553 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5556 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5560 g_hash_table_destroy (name_cache2);
5562 mono_loader_unlock ();
5566 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5567 const char *name, guint32 index)
5569 GHashTable *nspace_table;
5570 GHashTable *name_cache;
5572 mono_loader_lock ();
5574 if (!image->name_cache)
5575 mono_image_init_name_cache (image);
5577 name_cache = image->name_cache;
5578 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5579 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5580 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5582 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5584 mono_loader_unlock ();
5593 find_nocase (gpointer key, gpointer value, gpointer user_data)
5595 char *name = (char*)key;
5596 FindUserData *data = (FindUserData*)user_data;
5598 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5599 data->value = value;
5603 * mono_class_from_name_case:
5604 * @image: The MonoImage where the type is looked up in
5605 * @name_space: the type namespace
5606 * @name: the type short name.
5608 * Obtains a MonoClass with a given namespace and a given name which
5609 * is located in the given MonoImage. The namespace and name
5610 * lookups are case insensitive.
5613 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5615 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5616 guint32 cols [MONO_TYPEDEF_SIZE];
5621 if (image->dynamic) {
5623 FindUserData user_data;
5625 mono_loader_lock ();
5627 if (!image->name_cache)
5628 mono_image_init_name_cache (image);
5630 user_data.key = name_space;
5631 user_data.value = NULL;
5632 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5634 if (user_data.value) {
5635 GHashTable *nspace_table = (GHashTable*)user_data.value;
5637 user_data.key = name;
5638 user_data.value = NULL;
5640 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5642 if (user_data.value)
5643 token = GPOINTER_TO_UINT (user_data.value);
5646 mono_loader_unlock ();
5649 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5655 /* add a cache if needed */
5656 for (i = 1; i <= t->rows; ++i) {
5657 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5658 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5660 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5661 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5663 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5665 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5666 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5667 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5668 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5674 return_nested_in (MonoClass *class, char *nested)
5677 char *s = strchr (nested, '/');
5678 gpointer iter = NULL;
5685 while ((found = mono_class_get_nested_types (class, &iter))) {
5686 if (strcmp (found->name, nested) == 0) {
5688 return return_nested_in (found, s);
5696 search_modules (MonoImage *image, const char *name_space, const char *name)
5698 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5699 MonoImage *file_image;
5704 * The EXPORTEDTYPES table only contains public types, so have to search the
5706 * Note: image->modules contains the contents of the MODULEREF table, while
5707 * the real module list is in the FILE table.
5709 for (i = 0; i < file_table->rows; i++) {
5710 guint32 cols [MONO_FILE_SIZE];
5711 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5712 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5715 file_image = mono_image_load_file_for_image (image, i + 1);
5717 class = mono_class_from_name (file_image, name_space, name);
5727 * mono_class_from_name:
5728 * @image: The MonoImage where the type is looked up in
5729 * @name_space: the type namespace
5730 * @name: the type short name.
5732 * Obtains a MonoClass with a given namespace and a given name which
5733 * is located in the given MonoImage.
5736 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5738 GHashTable *nspace_table;
5739 MonoImage *loaded_image;
5746 if ((nested = strchr (name, '/'))) {
5747 int pos = nested - name;
5748 int len = strlen (name);
5751 memcpy (buf, name, len + 1);
5753 nested = buf + pos + 1;
5757 if (get_class_from_name) {
5758 gboolean res = get_class_from_name (image, name_space, name, &class);
5761 class = search_modules (image, name_space, name);
5763 return class ? return_nested_in (class, nested) : NULL;
5769 mono_loader_lock ();
5771 if (!image->name_cache)
5772 mono_image_init_name_cache (image);
5774 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5777 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5779 mono_loader_unlock ();
5781 if (!token && image->dynamic && image->modules) {
5782 /* Search modules as well */
5783 for (i = 0; i < image->module_count; ++i) {
5784 MonoImage *module = image->modules [i];
5786 class = mono_class_from_name (module, name_space, name);
5793 class = search_modules (image, name_space, name);
5801 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5802 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5803 guint32 cols [MONO_EXP_TYPE_SIZE];
5806 idx = mono_metadata_token_index (token);
5808 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5810 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5811 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5812 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5815 class = mono_class_from_name (loaded_image, name_space, name);
5817 return return_nested_in (class, nested);
5819 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5820 MonoAssembly **references = image->references;
5821 guint32 assembly_idx;
5823 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
5825 if (!references [assembly_idx - 1])
5826 mono_assembly_load_reference (image, assembly_idx - 1);
5827 g_assert (references == image->references);
5828 g_assert (references [assembly_idx - 1]);
5829 if (references [assembly_idx - 1] == (gpointer)-1)
5832 /* FIXME: Cycle detection */
5833 return mono_class_from_name (references [assembly_idx - 1]->image, name_space, name);
5835 g_error ("not yet implemented");
5839 token = MONO_TOKEN_TYPE_DEF | token;
5841 class = mono_class_get (image, token);
5843 return return_nested_in (class, nested);
5848 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5849 gboolean check_interfaces)
5851 g_assert (klassc->idepth > 0);
5852 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5853 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5855 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5858 for (i = 0; i < klass->interface_count; i ++) {
5859 MonoClass *ic = klass->interfaces [i];
5864 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5869 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5872 if (klassc == mono_defaults.object_class)
5879 mono_class_has_variant_generic_params (MonoClass *klass)
5882 MonoGenericContainer *container;
5884 if (!klass->generic_class)
5887 container = klass->generic_class->container_class->generic_container;
5889 for (i = 0; i < container->type_argc; ++i)
5890 if (mono_generic_container_get_param (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5897 * mono_class_is_assignable_from:
5898 * @klass: the class to be assigned to
5899 * @oklass: the source class
5901 * Return: true if an instance of object oklass can be assigned to an
5902 * instance of object @klass
5905 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5908 mono_class_init (klass);
5910 if (!oklass->inited)
5911 mono_class_init (oklass);
5913 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5914 return klass == oklass;
5916 if (MONO_CLASS_IS_INTERFACE (klass)) {
5917 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5920 /* interface_offsets might not be set for dynamic classes */
5921 if (oklass->reflection_info && !oklass->interface_bitmap)
5923 * oklass might be a generic type parameter but they have
5924 * interface_offsets set.
5926 return mono_reflection_call_is_assignable_to (oklass, klass);
5927 if (!oklass->interface_bitmap)
5928 /* Happens with generic instances of not-yet created dynamic types */
5930 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5933 if (mono_class_has_variant_generic_params (klass)) {
5934 if (oklass->generic_class) {
5936 gboolean match = FALSE;
5937 MonoClass *container_class1 = klass->generic_class->container_class;
5938 MonoClass *container_class2 = oklass->generic_class->container_class;
5941 * Check whenever the generic definition of oklass implements the
5942 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5943 * here since the relevant tables are not set up.
5945 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5946 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)))
5950 MonoGenericContainer *container;
5952 container = klass->generic_class->container_class->generic_container;
5955 for (i = 0; i < container->type_argc; ++i) {
5956 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5957 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5959 if (param1_class->valuetype != param2_class->valuetype) {
5964 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5965 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5967 if (param1_class != param2_class) {
5968 if ((mono_generic_container_get_param (container, i)->flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5970 else if (((mono_generic_container_get_param (container, i)->flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5984 } else if (klass->rank) {
5985 MonoClass *eclass, *eoclass;
5987 if (oklass->rank != klass->rank)
5990 /* vectors vs. one dimensional arrays */
5991 if (oklass->byval_arg.type != klass->byval_arg.type)
5994 eclass = klass->cast_class;
5995 eoclass = oklass->cast_class;
5998 * a is b does not imply a[] is b[] when a is a valuetype, and
5999 * b is a reference type.
6002 if (eoclass->valuetype) {
6003 if ((eclass == mono_defaults.enum_class) ||
6004 (eclass == mono_defaults.enum_class->parent) ||
6005 (eclass == mono_defaults.object_class))
6009 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6010 } else if (mono_class_is_nullable (klass)) {
6011 if (mono_class_is_nullable (oklass))
6012 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6014 return mono_class_is_assignable_from (klass->cast_class, oklass);
6015 } else if (klass == mono_defaults.object_class)
6018 return mono_class_has_parent (oklass, klass);
6022 * mono_class_get_cctor:
6023 * @klass: A MonoClass pointer
6025 * Returns: the static constructor of @klass if it exists, NULL otherwise.
6028 mono_class_get_cctor (MonoClass *klass)
6030 MonoCachedClassInfo cached_info;
6032 if (!klass->has_cctor)
6035 if (mono_class_get_cached_class_info (klass, &cached_info))
6036 return mono_get_method (klass->image, cached_info.cctor_token, klass);
6038 if (klass->generic_class && !klass->methods)
6039 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
6041 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
6045 * mono_class_get_finalizer:
6046 * @klass: The MonoClass pointer
6048 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
6051 mono_class_get_finalizer (MonoClass *klass)
6053 MonoCachedClassInfo cached_info;
6056 mono_class_init (klass);
6057 if (!klass->has_finalize)
6060 if (mono_class_get_cached_class_info (klass, &cached_info))
6061 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
6063 mono_class_setup_vtable (klass);
6064 return klass->vtable [finalize_slot];
6069 * mono_class_needs_cctor_run:
6070 * @klass: the MonoClass pointer
6071 * @caller: a MonoMethod describing the caller
6073 * Determines whenever the class has a static constructor and whenever it
6074 * needs to be called when executing CALLER.
6077 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
6081 method = mono_class_get_cctor (klass);
6083 return (method == caller) ? FALSE : TRUE;
6089 * mono_class_array_element_size:
6092 * Returns: the number of bytes an element of type @klass
6093 * uses when stored into an array.
6096 mono_class_array_element_size (MonoClass *klass)
6098 MonoType *type = &klass->byval_arg;
6101 switch (type->type) {
6104 case MONO_TYPE_BOOLEAN:
6108 case MONO_TYPE_CHAR:
6117 case MONO_TYPE_CLASS:
6118 case MONO_TYPE_STRING:
6119 case MONO_TYPE_OBJECT:
6120 case MONO_TYPE_SZARRAY:
6121 case MONO_TYPE_ARRAY:
6123 case MONO_TYPE_MVAR:
6124 return sizeof (gpointer);
6129 case MONO_TYPE_VALUETYPE:
6130 if (type->data.klass->enumtype) {
6131 type = mono_class_enum_basetype (type->data.klass);
6132 klass = klass->element_class;
6135 return mono_class_instance_size (klass) - sizeof (MonoObject);
6136 case MONO_TYPE_GENERICINST:
6137 type = &type->data.generic_class->container_class->byval_arg;
6140 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6146 * mono_array_element_size:
6147 * @ac: pointer to a #MonoArrayClass
6149 * Returns: the size of single array element.
6152 mono_array_element_size (MonoClass *ac)
6154 g_assert (ac->rank);
6155 return ac->sizes.element_size;
6159 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6160 MonoGenericContext *context)
6162 if (image->dynamic) {
6163 MonoClass *tmp_handle_class;
6164 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6166 g_assert (tmp_handle_class);
6168 *handle_class = tmp_handle_class;
6170 if (tmp_handle_class == mono_defaults.typehandle_class)
6171 return &((MonoClass*)obj)->byval_arg;
6176 switch (token & 0xff000000) {
6177 case MONO_TOKEN_TYPE_DEF:
6178 case MONO_TOKEN_TYPE_REF:
6179 case MONO_TOKEN_TYPE_SPEC: {
6182 *handle_class = mono_defaults.typehandle_class;
6183 type = mono_type_get_full (image, token, context);
6186 mono_class_init (mono_class_from_mono_type (type));
6187 /* We return a MonoType* as handle */
6190 case MONO_TOKEN_FIELD_DEF: {
6192 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6194 *handle_class = mono_defaults.fieldhandle_class;
6195 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6198 mono_class_init (class);
6199 return mono_class_get_field (class, token);
6201 case MONO_TOKEN_METHOD_DEF:
6202 case MONO_TOKEN_METHOD_SPEC: {
6204 meth = mono_get_method_full (image, token, NULL, context);
6206 *handle_class = mono_defaults.methodhandle_class;
6209 case MONO_TOKEN_MEMBER_REF: {
6210 guint32 cols [MONO_MEMBERREF_SIZE];
6212 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6213 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6214 mono_metadata_decode_blob_size (sig, &sig);
6215 if (*sig == 0x6) { /* it's a field */
6217 MonoClassField *field;
6218 field = mono_field_from_token (image, token, &klass, context);
6220 *handle_class = mono_defaults.fieldhandle_class;
6224 meth = mono_get_method_full (image, token, NULL, context);
6226 *handle_class = mono_defaults.methodhandle_class;
6231 g_warning ("Unknown token 0x%08x in ldtoken", token);
6238 * This function might need to call runtime functions so it can't be part
6239 * of the metadata library.
6241 static MonoLookupDynamicToken lookup_dynamic = NULL;
6244 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6246 lookup_dynamic = func;
6250 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6252 MonoClass *handle_class;
6254 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6258 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6260 return lookup_dynamic (image, token, valid_token, handle_class, context);
6263 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6266 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6268 get_cached_class_info = func;
6272 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6274 if (!get_cached_class_info)
6277 return get_cached_class_info (klass, res);
6281 mono_install_get_class_from_name (MonoGetClassFromName func)
6283 get_class_from_name = func;
6287 mono_class_get_image (MonoClass *klass)
6289 return klass->image;
6293 * mono_class_get_element_class:
6294 * @klass: the MonoClass to act on
6296 * Returns: the element class of an array or an enumeration.
6299 mono_class_get_element_class (MonoClass *klass)
6301 return klass->element_class;
6305 * mono_class_is_valuetype:
6306 * @klass: the MonoClass to act on
6308 * Returns: true if the MonoClass represents a ValueType.
6311 mono_class_is_valuetype (MonoClass *klass)
6313 return klass->valuetype;
6317 * mono_class_is_enum:
6318 * @klass: the MonoClass to act on
6320 * Returns: true if the MonoClass represents an enumeration.
6323 mono_class_is_enum (MonoClass *klass)
6325 return klass->enumtype;
6329 * mono_class_enum_basetype:
6330 * @klass: the MonoClass to act on
6332 * Returns: the underlying type representation for an enumeration.
6335 mono_class_enum_basetype (MonoClass *klass)
6337 if (klass->element_class == klass)
6341 return &klass->element_class->byval_arg;
6345 * mono_class_get_parent
6346 * @klass: the MonoClass to act on
6348 * Returns: the parent class for this class.
6351 mono_class_get_parent (MonoClass *klass)
6353 return klass->parent;
6357 * mono_class_get_nesting_type;
6358 * @klass: the MonoClass to act on
6360 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6363 mono_class_get_nesting_type (MonoClass *klass)
6365 return klass->nested_in;
6369 * mono_class_get_rank:
6370 * @klass: the MonoClass to act on
6372 * Returns: the rank for the array (the number of dimensions).
6375 mono_class_get_rank (MonoClass *klass)
6381 * mono_class_get_flags:
6382 * @klass: the MonoClass to act on
6384 * The type flags from the TypeDef table from the metadata.
6385 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6388 * Returns: the flags from the TypeDef table.
6391 mono_class_get_flags (MonoClass *klass)
6393 return klass->flags;
6397 * mono_class_get_name
6398 * @klass: the MonoClass to act on
6400 * Returns: the name of the class.
6403 mono_class_get_name (MonoClass *klass)
6409 * mono_class_get_namespace:
6410 * @klass: the MonoClass to act on
6412 * Returns: the namespace of the class.
6415 mono_class_get_namespace (MonoClass *klass)
6417 return klass->name_space;
6421 * mono_class_get_type:
6422 * @klass: the MonoClass to act on
6424 * This method returns the internal Type representation for the class.
6426 * Returns: the MonoType from the class.
6429 mono_class_get_type (MonoClass *klass)
6431 return &klass->byval_arg;
6435 * mono_class_get_type_token
6436 * @klass: the MonoClass to act on
6438 * This method returns type token for the class.
6440 * Returns: the type token for the class.
6443 mono_class_get_type_token (MonoClass *klass)
6445 return klass->type_token;
6449 * mono_class_get_byref_type:
6450 * @klass: the MonoClass to act on
6455 mono_class_get_byref_type (MonoClass *klass)
6457 return &klass->this_arg;
6461 * mono_class_num_fields:
6462 * @klass: the MonoClass to act on
6464 * Returns: the number of static and instance fields in the class.
6467 mono_class_num_fields (MonoClass *klass)
6469 return klass->field.count;
6473 * mono_class_num_methods:
6474 * @klass: the MonoClass to act on
6476 * Returns: the number of methods in the class.
6479 mono_class_num_methods (MonoClass *klass)
6481 return klass->method.count;
6485 * mono_class_num_properties
6486 * @klass: the MonoClass to act on
6488 * Returns: the number of properties in the class.
6491 mono_class_num_properties (MonoClass *klass)
6493 mono_class_setup_properties (klass);
6495 return klass->ext->property.count;
6499 * mono_class_num_events:
6500 * @klass: the MonoClass to act on
6502 * Returns: the number of events in the class.
6505 mono_class_num_events (MonoClass *klass)
6507 mono_class_setup_events (klass);
6509 return klass->ext->event.count;
6513 * mono_class_get_fields:
6514 * @klass: the MonoClass to act on
6516 * This routine is an iterator routine for retrieving the fields in a class.
6518 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6519 * iterate over all of the elements. When no more values are
6520 * available, the return value is NULL.
6522 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6525 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6527 MonoClassField* field;
6531 mono_class_setup_fields_locking (klass);
6532 if (klass->exception_type)
6534 /* start from the first */
6535 if (klass->field.count) {
6536 return *iter = &klass->fields [0];
6544 if (field < &klass->fields [klass->field.count]) {
6545 return *iter = field;
6551 * mono_class_get_methods
6552 * @klass: the MonoClass to act on
6554 * This routine is an iterator routine for retrieving the fields in a class.
6556 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6557 * iterate over all of the elements. When no more values are
6558 * available, the return value is NULL.
6560 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6563 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6565 MonoMethod** method;
6569 mono_class_init (klass);
6571 mono_class_setup_methods (klass);
6572 /* start from the first */
6573 if (klass->method.count) {
6574 *iter = &klass->methods [0];
6575 return klass->methods [0];
6583 if (method < &klass->methods [klass->method.count]) {
6591 * mono_class_get_virtual_methods:
6593 * Iterate over the virtual methods of KLASS.
6595 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6598 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6600 MonoMethod** method;
6603 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6605 mono_class_setup_methods (klass);
6606 /* start from the first */
6607 method = &klass->methods [0];
6612 while (method < &klass->methods [klass->method.count]) {
6613 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6617 if (method < &klass->methods [klass->method.count]) {
6624 /* Search directly in metadata to avoid calling setup_methods () */
6625 MonoMethod *res = NULL;
6631 start_index = GPOINTER_TO_UINT (*iter);
6634 for (i = start_index; i < klass->method.count; ++i) {
6635 guint32 cols [MONO_METHOD_SIZE];
6637 /* class->method.first points into the methodptr table */
6638 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6640 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6644 if (i < klass->method.count) {
6645 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6646 /* Add 1 here so the if (*iter) check fails */
6647 *iter = GUINT_TO_POINTER (i + 1);
6656 * mono_class_get_properties:
6657 * @klass: the MonoClass to act on
6659 * This routine is an iterator routine for retrieving the properties in a class.
6661 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6662 * iterate over all of the elements. When no more values are
6663 * available, the return value is NULL.
6665 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6668 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6670 MonoProperty* property;
6674 mono_class_init (klass);
6676 mono_class_setup_properties (klass);
6677 /* start from the first */
6678 if (klass->ext->property.count) {
6679 return *iter = &klass->ext->properties [0];
6687 if (property < &klass->ext->properties [klass->ext->property.count]) {
6688 return *iter = property;
6694 * mono_class_get_events:
6695 * @klass: the MonoClass to act on
6697 * This routine is an iterator routine for retrieving the properties in a class.
6699 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6700 * iterate over all of the elements. When no more values are
6701 * available, the return value is NULL.
6703 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6706 mono_class_get_events (MonoClass* klass, gpointer *iter)
6712 mono_class_init (klass);
6714 mono_class_setup_events (klass);
6715 /* start from the first */
6716 if (klass->ext->event.count) {
6717 return *iter = &klass->ext->events [0];
6725 if (event < &klass->ext->events [klass->ext->event.count]) {
6726 return *iter = event;
6732 * mono_class_get_interfaces
6733 * @klass: the MonoClass to act on
6735 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6737 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6738 * iterate over all of the elements. When no more values are
6739 * available, the return value is NULL.
6741 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6744 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6751 mono_class_init (klass);
6752 if (!klass->interfaces_inited)
6753 mono_class_setup_interfaces (klass);
6754 /* start from the first */
6755 if (klass->interface_count) {
6756 *iter = &klass->interfaces [0];
6757 return klass->interfaces [0];
6765 if (iface < &klass->interfaces [klass->interface_count]) {
6773 * mono_class_get_nested_types
6774 * @klass: the MonoClass to act on
6776 * This routine is an iterator routine for retrieving the nested types of a class.
6777 * This works only if @klass is non-generic, or a generic type definition.
6779 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6780 * iterate over all of the elements. When no more values are
6781 * available, the return value is NULL.
6783 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6786 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6794 mono_class_init (klass);
6795 if (!klass->nested_classes_inited) {
6796 if (!klass->type_token)
6797 klass->nested_classes_inited = TRUE;
6798 mono_loader_lock ();
6799 if (!klass->nested_classes_inited) {
6800 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
6803 guint32 cols [MONO_NESTED_CLASS_SIZE];
6804 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
6805 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
6806 mono_class_alloc_ext (klass);
6807 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
6809 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
6812 mono_memory_barrier ();
6813 klass->nested_classes_inited = TRUE;
6814 mono_loader_unlock ();
6818 /* start from the first */
6819 if (klass->ext && klass->ext->nested_classes) {
6820 *iter = klass->ext->nested_classes;
6821 return klass->ext->nested_classes->data;
6823 /* no nested types */
6837 * mono_field_get_name:
6838 * @field: the MonoClassField to act on
6840 * Returns: the name of the field.
6843 mono_field_get_name (MonoClassField *field)
6849 * mono_field_get_type:
6850 * @field: the MonoClassField to act on
6852 * Returns: MonoType of the field.
6855 mono_field_get_type (MonoClassField *field)
6861 * mono_field_get_type:
6862 * @field: the MonoClassField to act on
6864 * Returns: MonoClass where the field was defined.
6867 mono_field_get_parent (MonoClassField *field)
6869 return field->parent;
6873 * mono_field_get_flags;
6874 * @field: the MonoClassField to act on
6876 * The metadata flags for a field are encoded using the
6877 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6879 * Returns: the flags for the field.
6882 mono_field_get_flags (MonoClassField *field)
6884 return field->type->attrs;
6888 * mono_field_get_offset;
6889 * @field: the MonoClassField to act on
6891 * Returns: the field offset.
6894 mono_field_get_offset (MonoClassField *field)
6896 return field->offset;
6900 mono_field_get_rva (MonoClassField *field)
6904 MonoClass *klass = field->parent;
6906 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
6908 if (!klass->ext || !klass->ext->field_def_values) {
6909 mono_loader_lock ();
6910 mono_class_alloc_ext (klass);
6911 if (!klass->ext->field_def_values)
6912 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
6913 mono_loader_unlock ();
6916 field_index = mono_field_get_index (field);
6918 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
6919 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
6921 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
6922 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
6925 return klass->ext->field_def_values [field_index].data;
6929 * mono_field_get_data;
6930 * @field: the MonoClassField to act on
6932 * Returns: pointer to the metadata constant value or to the field
6933 * data if it has an RVA flag.
6936 mono_field_get_data (MonoClassField *field)
6938 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
6939 MonoTypeEnum def_type;
6941 return mono_class_get_field_default_value (field, &def_type);
6942 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
6943 return mono_field_get_rva (field);
6950 * mono_property_get_name:
6951 * @prop: the MonoProperty to act on
6953 * Returns: the name of the property
6956 mono_property_get_name (MonoProperty *prop)
6962 * mono_property_get_set_method
6963 * @prop: the MonoProperty to act on.
6965 * Returns: the setter method of the property (A MonoMethod)
6968 mono_property_get_set_method (MonoProperty *prop)
6974 * mono_property_get_get_method
6975 * @prop: the MonoProperty to act on.
6977 * Returns: the setter method of the property (A MonoMethod)
6980 mono_property_get_get_method (MonoProperty *prop)
6986 * mono_property_get_parent:
6987 * @prop: the MonoProperty to act on.
6989 * Returns: the MonoClass where the property was defined.
6992 mono_property_get_parent (MonoProperty *prop)
6994 return prop->parent;
6998 * mono_property_get_flags:
6999 * @prop: the MonoProperty to act on.
7001 * The metadata flags for a property are encoded using the
7002 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
7004 * Returns: the flags for the property.
7007 mono_property_get_flags (MonoProperty *prop)
7013 * mono_event_get_name:
7014 * @event: the MonoEvent to act on
7016 * Returns: the name of the event.
7019 mono_event_get_name (MonoEvent *event)
7025 * mono_event_get_add_method:
7026 * @event: The MonoEvent to act on.
7028 * Returns: the @add' method for the event (a MonoMethod).
7031 mono_event_get_add_method (MonoEvent *event)
7037 * mono_event_get_remove_method:
7038 * @event: The MonoEvent to act on.
7040 * Returns: the @remove method for the event (a MonoMethod).
7043 mono_event_get_remove_method (MonoEvent *event)
7045 return event->remove;
7049 * mono_event_get_raise_method:
7050 * @event: The MonoEvent to act on.
7052 * Returns: the @raise method for the event (a MonoMethod).
7055 mono_event_get_raise_method (MonoEvent *event)
7057 return event->raise;
7061 * mono_event_get_parent:
7062 * @event: the MonoEvent to act on.
7064 * Returns: the MonoClass where the event is defined.
7067 mono_event_get_parent (MonoEvent *event)
7069 return event->parent;
7073 * mono_event_get_flags
7074 * @event: the MonoEvent to act on.
7076 * The metadata flags for an event are encoded using the
7077 * EVENT_* constants. See the tabledefs.h file for details.
7079 * Returns: the flags for the event.
7082 mono_event_get_flags (MonoEvent *event)
7084 return event->attrs;
7088 * mono_class_get_method_from_name:
7089 * @klass: where to look for the method
7090 * @name_space: name of the method
7091 * @param_count: number of parameters. -1 for any number.
7093 * Obtains a MonoMethod with a given name and number of parameters.
7094 * It only works if there are no multiple signatures for any given method name.
7097 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
7099 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
7103 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
7105 MonoMethod *res = NULL;
7108 /* Search directly in the metadata to avoid calling setup_methods () */
7109 for (i = 0; i < klass->method.count; ++i) {
7110 guint32 cols [MONO_METHOD_SIZE];
7113 /* class->method.first points into the methodptr table */
7114 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
7116 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
7117 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7118 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
7129 * mono_class_get_method_from_name_flags:
7130 * @klass: where to look for the method
7131 * @name_space: name of the method
7132 * @param_count: number of parameters. -1 for any number.
7133 * @flags: flags which must be set in the method
7135 * Obtains a MonoMethod with a given name and number of parameters.
7136 * It only works if there are no multiple signatures for any given method name.
7139 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
7141 MonoMethod *res = NULL;
7144 mono_class_init (klass);
7146 if (klass->generic_class && !klass->methods) {
7147 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
7149 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
7153 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
7154 mono_class_setup_methods (klass);
7155 for (i = 0; i < klass->method.count; ++i) {
7156 MonoMethod *method = klass->methods [i];
7158 if (method->name[0] == name [0] &&
7159 !strcmp (name, method->name) &&
7160 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
7161 ((method->flags & flags) == flags)) {
7168 res = find_method_in_metadata (klass, name, param_count, flags);
7175 * mono_class_set_failure:
7176 * @klass: class in which the failure was detected
7177 * @ex_type: the kind of exception/error to be thrown (later)
7178 * @ex_data: exception data (specific to each type of exception/error)
7180 * Keep a detected failure informations in the class for later processing.
7181 * Note that only the first failure is kept.
7183 * LOCKING: Acquires the loader lock.
7186 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
7188 if (klass->exception_type)
7191 mono_loader_lock ();
7192 klass->exception_type = ex_type;
7194 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
7195 mono_loader_unlock ();
7201 * mono_class_get_exception_data:
7203 * Return the exception_data property of KLASS.
7205 * LOCKING: Acquires the loader lock.
7208 mono_class_get_exception_data (MonoClass *klass)
7210 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
7214 * mono_classes_init:
7216 * Initialize the resources used by this module.
7219 mono_classes_init (void)
7221 mono_counters_register ("Inflated methods size",
7222 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
7223 mono_counters_register ("Inflated classes",
7224 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
7225 mono_counters_register ("Inflated classes size",
7226 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
7227 mono_counters_register ("MonoClass size",
7228 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
7229 mono_counters_register ("MonoClassExt size",
7230 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
7234 * mono_classes_cleanup:
7236 * Free the resources used by this module.
7239 mono_classes_cleanup (void)
7241 if (global_interface_bitset)
7242 mono_bitset_free (global_interface_bitset);
7246 * mono_class_get_exception_for_failure:
7247 * @klass: class in which the failure was detected
7249 * Return a constructed MonoException than the caller can then throw
7250 * using mono_raise_exception - or NULL if no failure is present (or
7251 * doesn't result in an exception).
7254 mono_class_get_exception_for_failure (MonoClass *klass)
7256 gpointer exception_data = mono_class_get_exception_data (klass);
7258 switch (klass->exception_type) {
7259 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7260 MonoDomain *domain = mono_domain_get ();
7261 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7262 MonoMethod *method = exception_data;
7263 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7264 MonoObject *exc = NULL;
7268 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7269 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7270 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7272 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7273 return (MonoException*) exc;
7275 case MONO_EXCEPTION_TYPE_LOAD: {
7278 char *str = mono_type_get_full_name (klass);
7279 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7280 name = mono_string_new (mono_domain_get (), str);
7282 ex = mono_get_exception_type_load (name, astr);
7286 case MONO_EXCEPTION_MISSING_METHOD: {
7287 char *class_name = exception_data;
7288 char *assembly_name = class_name + strlen (class_name) + 1;
7290 return mono_get_exception_missing_method (class_name, assembly_name);
7292 case MONO_EXCEPTION_MISSING_FIELD: {
7293 char *class_name = exception_data;
7294 char *member_name = class_name + strlen (class_name) + 1;
7296 return mono_get_exception_missing_field (class_name, member_name);
7298 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7299 char *msg_format = exception_data;
7300 char *assembly_name = msg_format + strlen (msg_format) + 1;
7301 char *msg = g_strdup_printf (msg_format, assembly_name);
7304 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7310 case MONO_EXCEPTION_BAD_IMAGE: {
7311 return mono_get_exception_bad_image_format (exception_data);
7314 MonoLoaderError *error;
7317 error = mono_loader_get_last_error ();
7319 ex = mono_loader_error_prepare_exception (error);
7323 /* TODO - handle other class related failures */
7330 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7332 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7333 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7335 if (outer_klass == inner_klass)
7337 inner_klass = inner_klass->nested_in;
7338 } while (inner_klass);
7343 mono_class_get_generic_type_definition (MonoClass *klass)
7345 return klass->generic_class ? klass->generic_class->container_class : klass;
7349 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7351 * Generic instantiations are ignored for all super types of @klass.
7353 * Visibility checks ignoring generic instantiations.
7356 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7359 klass = mono_class_get_generic_type_definition (klass);
7360 parent = mono_class_get_generic_type_definition (parent);
7362 for (i = 0; i < klass->idepth; ++i) {
7363 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7369 * Subtype can only access parent members with family protection if the site object
7370 * is subclass of Subtype. For example:
7371 * class A { protected int x; }
7373 * void valid_access () {
7377 * void invalid_access () {
7384 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7386 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7389 if (context_klass == NULL)
7391 /*if access_klass is not member_klass context_klass must be type compat*/
7392 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7398 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7401 if (accessing == accessed)
7403 if (!accessed || !accessing)
7405 mono_assembly_load_friends (accessed);
7406 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7407 MonoAssemblyName *friend = tmp->data;
7408 /* Be conservative with checks */
7411 if (strcmp (accessing->aname.name, friend->name))
7413 if (friend->public_key_token [0]) {
7414 if (!accessing->aname.public_key_token [0])
7416 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7425 * If klass is a generic type or if it is derived from a generic type, return the
7426 * MonoClass of the generic definition
7427 * Returns NULL if not found
7430 get_generic_definition_class (MonoClass *klass)
7433 if (klass->generic_class && klass->generic_class->container_class)
7434 return klass->generic_class->container_class;
7435 klass = klass->parent;
7441 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7444 for (i = 0; i < ginst->type_argc; ++i) {
7445 MonoType *type = ginst->type_argv[i];
7446 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
7448 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7455 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7457 int access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7459 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7462 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7465 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7468 switch (access_level) {
7469 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7470 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7472 case TYPE_ATTRIBUTE_PUBLIC:
7475 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7478 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7479 return is_nesting_type (member_klass, access_klass);
7481 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7482 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7484 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7485 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7487 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7488 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7489 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7491 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7492 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7493 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7498 /* FIXME: check visibility of type, too */
7500 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7502 MonoClass *member_generic_def;
7503 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7504 access_klass->generic_container) &&
7505 (member_generic_def = get_generic_definition_class (member_klass))) {
7506 MonoClass *access_container;
7508 if (access_klass->generic_container)
7509 access_container = access_klass;
7511 access_container = access_klass->generic_class->container_class;
7513 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7517 /* Partition I 8.5.3.2 */
7518 /* the access level values are the same for fields and methods */
7519 switch (access_level) {
7520 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7521 /* same compilation unit */
7522 return access_klass->image == member_klass->image;
7523 case FIELD_ATTRIBUTE_PRIVATE:
7524 return access_klass == member_klass;
7525 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7526 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7527 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7530 case FIELD_ATTRIBUTE_ASSEMBLY:
7531 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7532 case FIELD_ATTRIBUTE_FAMILY:
7533 if (is_valid_family_access (access_klass, member_klass, context_klass))
7536 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7537 if (is_valid_family_access (access_klass, member_klass, context_klass))
7539 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7540 case FIELD_ATTRIBUTE_PUBLIC:
7547 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7549 /* FIXME: check all overlapping fields */
7550 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7552 MonoClass *nested = method->klass->nested_in;
7554 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7557 nested = nested->nested_in;
7564 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7566 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7568 MonoClass *nested = method->klass->nested_in;
7570 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7573 nested = nested->nested_in;
7578 * with generics calls to explicit interface implementations can be expressed
7579 * directly: the method is private, but we must allow it. This may be opening
7580 * a hole or the generics code should handle this differently.
7581 * Maybe just ensure the interface type is public.
7583 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7589 * mono_method_can_access_method_with_context:
7590 * @method: The caller method
7591 * @called: The called method
7592 * @context_klass:TThe static type on stack of the owner @called object used
7594 * This function must be used with instance calls, as they have more strict family accessibility.
7595 * It can be used with static mehthod, but context_klass should be NULL.
7597 * Returns: TRUE if caller have proper visibility and acessibility to @called
7600 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7602 MonoClass *access_class = method->klass;
7603 MonoClass *member_class = called->klass;
7604 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7606 MonoClass *nested = access_class->nested_in;
7608 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7611 nested = nested->nested_in;
7618 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7621 if (called->is_inflated) {
7622 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7623 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7632 * mono_method_can_access_method_with_context:
7633 * @method: The caller method
7634 * @field: The accessed field
7635 * @context_klass: The static type on stack of the owner @field object used
7637 * This function must be used with instance fields, as they have more strict family accessibility.
7638 * It can be used with static fields, but context_klass should be NULL.
7640 * Returns: TRUE if caller have proper visibility and acessibility to @field
7643 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7645 MonoClass *access_class = method->klass;
7646 MonoClass *member_class = field->parent;
7647 /* FIXME: check all overlapping fields */
7648 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7650 MonoClass *nested = access_class->nested_in;
7652 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7655 nested = nested->nested_in;
7662 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7668 * mono_type_is_valid_enum_basetype:
7669 * @type: The MonoType to check
7671 * Returns: TRUE if the type can be used as the basetype of an enum
7673 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7674 switch (type->type) {
7677 case MONO_TYPE_BOOLEAN:
7680 case MONO_TYPE_CHAR:
7693 * mono_class_is_valid_enum:
7694 * @klass: An enum class to be validated
7696 * This method verify the required properties an enum should have.
7698 * Returns: TRUE if the informed enum class is valid
7700 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7701 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7702 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7704 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7705 MonoClassField * field;
7706 gpointer iter = NULL;
7707 gboolean found_base_field = FALSE;
7709 g_assert (klass->enumtype);
7710 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7711 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7715 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7718 while ((field = mono_class_get_fields (klass, &iter))) {
7719 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7720 if (found_base_field)
7722 found_base_field = TRUE;
7723 if (!mono_type_is_valid_enum_basetype (field->type))
7728 if (!found_base_field)
7731 if (klass->method.count > 0)
7738 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7740 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7744 * mono_class_generic_sharing_enabled:
7747 * Returns whether generic sharing is enabled for class.
7749 * This is a stop-gap measure to slowly introduce generic sharing
7750 * until we have all the issues sorted out, at which time this
7751 * function will disappear and generic sharing will always be enabled.
7754 mono_class_generic_sharing_enabled (MonoClass *class)
7756 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
7757 static gboolean supported = TRUE;
7759 /* Not supported by the JIT backends */
7760 static gboolean supported = FALSE;
7762 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7763 static gboolean inited = FALSE;
7769 generic_sharing = MONO_GENERIC_SHARING_ALL;
7771 generic_sharing = MONO_GENERIC_SHARING_NONE;
7773 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7774 if (strcmp (option, "corlib") == 0)
7775 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7776 else if (strcmp (option, "collections") == 0)
7777 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7778 else if (strcmp (option, "all") == 0)
7779 generic_sharing = MONO_GENERIC_SHARING_ALL;
7780 else if (strcmp (option, "none") == 0)
7781 generic_sharing = MONO_GENERIC_SHARING_NONE;
7783 g_warning ("Unknown generic sharing option `%s'.", option);
7787 generic_sharing = MONO_GENERIC_SHARING_NONE;
7792 switch (generic_sharing) {
7793 case MONO_GENERIC_SHARING_NONE:
7795 case MONO_GENERIC_SHARING_ALL:
7797 case MONO_GENERIC_SHARING_CORLIB :
7798 return class->image == mono_defaults.corlib;
7799 case MONO_GENERIC_SHARING_COLLECTIONS:
7800 if (class->image != mono_defaults.corlib)
7802 while (class->nested_in)
7803 class = class->nested_in;
7804 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7806 g_assert_not_reached ();
7811 * mono_class_setup_interface_id:
7813 * Initializes MonoClass::interface_id if required.
7815 * LOCKING: Acquires the loader lock.
7818 mono_class_setup_interface_id (MonoClass *class)
7820 mono_loader_lock ();
7821 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
7822 class->interface_id = mono_get_unique_iid (class);
7823 mono_loader_unlock ();
7827 * mono_class_alloc_ext:
7829 * Allocate klass->ext if not already done.
7830 * LOCKING: Assumes the loader lock is held.
7833 mono_class_alloc_ext (MonoClass *klass)
7836 if (klass->generic_class) {
7837 klass->ext = g_new0 (MonoClassExt, 1);
7839 klass->ext = mono_image_alloc0 (klass->image, sizeof (MonoClassExt));
7841 class_ext_size += sizeof (MonoClassExt);
7846 * mono_class_setup_interfaces:
7848 * Initialize class->interfaces/interfaces_count.
7849 * LOCKING: Acquires the loader lock.
7852 mono_class_setup_interfaces (MonoClass *klass)
7856 if (klass->interfaces_inited)
7859 mono_loader_lock ();
7861 if (klass->interfaces_inited) {
7862 mono_loader_unlock ();
7866 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
7869 /* generic IList, ICollection, IEnumerable */
7870 klass->interface_count = 1;
7871 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
7873 args [0] = &klass->element_class->byval_arg;
7874 klass->interfaces [0] = mono_class_bind_generic_parameters (
7875 mono_defaults.generic_ilist_class, 1, args, FALSE);
7876 } else if (klass->generic_class) {
7877 MonoClass *gklass = klass->generic_class->container_class;
7879 klass->interface_count = gklass->interface_count;
7880 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
7881 for (i = 0; i < klass->interface_count; i++)
7882 klass->interfaces [i] = mono_class_inflate_generic_class (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class));
7885 mono_memory_barrier ();
7887 klass->interfaces_inited = TRUE;
7889 mono_loader_unlock ();