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_mempool_dup (MonoMemPool *mp, void *data, guint size)
177 void *res = mono_mempool_alloc (mp, size);
178 memcpy (res, data, size);
182 /* Copy everything mono_metadata_free_array free. */
184 mono_dup_array_type (MonoMemPool *mp, MonoArrayType *a)
188 a = mono_mempool_dup (mp, a, sizeof (MonoArrayType));
190 a->sizes = mono_mempool_dup (mp, a->sizes, a->numsizes * sizeof (int));
192 a->lobounds = mono_mempool_dup (mp, a->lobounds, a->numlobounds * sizeof (int));
193 mono_loader_unlock ();
195 a = g_memdup (a, sizeof (MonoArrayType));
197 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
199 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
204 /* Copy everything mono_metadata_free_method_signature free. */
206 mono_metadata_signature_deep_dup (MonoMemPool *mp, MonoMethodSignature *sig)
210 sig = mono_metadata_signature_dup_full (mp, sig);
212 sig->ret = mono_metadata_type_dup (mp, sig->ret);
213 for (i = 0; i < sig->param_count; ++i)
214 sig->params [i] = mono_metadata_type_dup (mp, sig->params [i]);
220 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
222 MonoAssembly *ta = klass->image->assembly;
224 g_string_append_printf (
225 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
227 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
228 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
229 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
230 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
234 mono_type_name_check_byref (MonoType *type, GString *str)
237 g_string_append_c (str, '&');
241 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
242 MonoTypeNameFormat format)
246 switch (type->type) {
247 case MONO_TYPE_ARRAY: {
248 int i, rank = type->data.array->rank;
249 MonoTypeNameFormat nested_format;
251 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
252 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
254 mono_type_get_name_recurse (
255 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
256 g_string_append_c (str, '[');
258 g_string_append_c (str, '*');
259 for (i = 1; i < rank; i++)
260 g_string_append_c (str, ',');
261 g_string_append_c (str, ']');
263 mono_type_name_check_byref (type, str);
265 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
266 _mono_type_get_assembly_name (type->data.array->eklass, str);
269 case MONO_TYPE_SZARRAY: {
270 MonoTypeNameFormat nested_format;
272 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
273 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
275 mono_type_get_name_recurse (
276 &type->data.klass->byval_arg, str, FALSE, nested_format);
277 g_string_append (str, "[]");
279 mono_type_name_check_byref (type, str);
281 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
282 _mono_type_get_assembly_name (type->data.klass, str);
285 case MONO_TYPE_PTR: {
286 MonoTypeNameFormat nested_format;
288 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
289 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
291 mono_type_get_name_recurse (
292 type->data.type, str, FALSE, nested_format);
293 g_string_append_c (str, '*');
295 mono_type_name_check_byref (type, str);
297 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
298 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
303 g_assert (type->data.generic_param->name);
304 g_string_append (str, type->data.generic_param->name);
306 mono_type_name_check_byref (type, str);
310 klass = mono_class_from_mono_type (type);
311 if (klass->nested_in) {
312 mono_type_get_name_recurse (
313 &klass->nested_in->byval_arg, str, TRUE, format);
314 if (format == MONO_TYPE_NAME_FORMAT_IL)
315 g_string_append_c (str, '.');
317 g_string_append_c (str, '+');
318 } else if (*klass->name_space) {
319 g_string_append (str, klass->name_space);
320 g_string_append_c (str, '.');
322 if (format == MONO_TYPE_NAME_FORMAT_IL) {
323 char *s = strchr (klass->name, '`');
324 int len = s ? s - klass->name : strlen (klass->name);
326 g_string_append_len (str, klass->name, len);
328 g_string_append (str, klass->name);
331 if (klass->generic_class) {
332 MonoGenericClass *gclass = klass->generic_class;
333 MonoGenericInst *inst = gclass->context.class_inst;
334 MonoTypeNameFormat nested_format;
337 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
338 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
340 if (format == MONO_TYPE_NAME_FORMAT_IL)
341 g_string_append_c (str, '<');
343 g_string_append_c (str, '[');
344 for (i = 0; i < inst->type_argc; i++) {
345 MonoType *t = inst->type_argv [i];
348 g_string_append_c (str, ',');
349 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
350 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
351 g_string_append_c (str, '[');
352 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
353 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
354 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
355 g_string_append_c (str, ']');
357 if (format == MONO_TYPE_NAME_FORMAT_IL)
358 g_string_append_c (str, '>');
360 g_string_append_c (str, ']');
361 } else if (klass->generic_container &&
362 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
363 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
366 if (format == MONO_TYPE_NAME_FORMAT_IL)
367 g_string_append_c (str, '<');
369 g_string_append_c (str, '[');
370 for (i = 0; i < klass->generic_container->type_argc; i++) {
372 g_string_append_c (str, ',');
373 g_string_append (str, klass->generic_container->type_params [i].name);
375 if (format == MONO_TYPE_NAME_FORMAT_IL)
376 g_string_append_c (str, '>');
378 g_string_append_c (str, ']');
381 mono_type_name_check_byref (type, str);
383 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
384 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
385 _mono_type_get_assembly_name (klass, str);
391 * mono_type_get_name:
393 * @format: the format for the return string.
396 * Returns: the string representation in a number of formats:
398 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
399 * returned in the formatrequired by System.Reflection, this is the
400 * inverse of mono_reflection_parse_type ().
402 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
403 * be used by the IL assembler.
405 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
407 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
410 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
414 result = g_string_new ("");
416 mono_type_get_name_recurse (type, result, FALSE, format);
418 return g_string_free (result, FALSE);
422 * mono_type_get_full_name:
425 * Returns: the string representation for type as required by System.Reflection.
426 * The inverse of mono_reflection_parse_type ().
429 mono_type_get_full_name (MonoClass *class)
431 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
435 * mono_type_get_name:
438 * Returns: the string representation for type as it would be represented in IL code.
441 mono_type_get_name (MonoType *type)
443 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
447 * mono_type_get_underlying_type:
450 * Returns: the MonoType for the underlying integer type if @type
451 * is an enum and byref is false, otherwise the type itself.
454 mono_type_get_underlying_type (MonoType *type)
456 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
457 return mono_class_enum_basetype (type->data.klass);
458 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
459 return mono_class_enum_basetype (type->data.generic_class->container_class);
464 * mono_class_is_open_constructed_type:
467 * Returns TRUE if type represents a generics open constructed type
468 * (not all the type parameters required for the instantiation have
472 mono_class_is_open_constructed_type (MonoType *t)
478 case MONO_TYPE_SZARRAY:
479 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
480 case MONO_TYPE_ARRAY:
481 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
483 return mono_class_is_open_constructed_type (t->data.type);
484 case MONO_TYPE_GENERICINST:
485 return t->data.generic_class->context.class_inst->is_open;
492 inflate_generic_type (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
494 switch (type->type) {
495 case MONO_TYPE_MVAR: {
497 int num = type->data.generic_param->num;
498 MonoGenericInst *inst = context->method_inst;
499 if (!inst || !inst->type_argv)
501 if (num >= inst->type_argc)
502 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
505 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
506 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
507 * ->byref and ->attrs from @type are propagated to the returned type.
509 nt = mono_metadata_type_dup (mempool, inst->type_argv [num]);
510 nt->byref = type->byref;
511 nt->attrs = type->attrs;
514 case MONO_TYPE_VAR: {
516 int num = type->data.generic_param->num;
517 MonoGenericInst *inst = context->class_inst;
520 if (num >= inst->type_argc)
521 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
522 nt = mono_metadata_type_dup (mempool, inst->type_argv [num]);
523 nt->byref = type->byref;
524 nt->attrs = type->attrs;
527 case MONO_TYPE_SZARRAY: {
528 MonoClass *eclass = type->data.klass;
529 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
532 nt = mono_metadata_type_dup (mempool, type);
533 nt->data.klass = mono_class_from_mono_type (inflated);
534 mono_metadata_free_type (inflated);
537 case MONO_TYPE_ARRAY: {
538 MonoClass *eclass = type->data.array->eklass;
539 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
542 nt = mono_metadata_type_dup (mempool, type);
543 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
544 nt->data.array->eklass = mono_class_from_mono_type (inflated);
545 mono_metadata_free_type (inflated);
548 case MONO_TYPE_GENERICINST: {
549 MonoGenericClass *gclass = type->data.generic_class;
550 MonoGenericInst *inst;
552 if (!gclass->context.class_inst->is_open)
555 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
556 if (inst != gclass->context.class_inst)
557 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
559 if (gclass == type->data.generic_class)
562 nt = mono_metadata_type_dup (mempool, type);
563 nt->data.generic_class = gclass;
566 case MONO_TYPE_CLASS:
567 case MONO_TYPE_VALUETYPE: {
568 MonoClass *klass = type->data.klass;
569 MonoGenericContainer *container = klass->generic_container;
570 MonoGenericInst *inst;
571 MonoGenericClass *gclass = NULL;
577 /* We can't use context->class_inst directly, since it can have more elements */
578 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
579 if (inst == container->context.class_inst)
582 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
584 nt = mono_metadata_type_dup (mempool, type);
585 nt->type = MONO_TYPE_GENERICINST;
586 nt->data.generic_class = gclass;
596 mono_generic_class_get_context (MonoGenericClass *gclass)
598 return &gclass->context;
602 mono_class_get_context (MonoClass *class)
604 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
608 * mono_class_get_generic_container:
610 * Return the generic container of KLASS which should be a generic type definition.
612 MonoGenericContainer*
613 mono_class_get_generic_container (MonoClass *klass)
615 g_assert (klass->is_generic);
617 return klass->generic_container;
621 * mono_class_get_generic_class:
623 * Return the MonoGenericClass of KLASS, which should be a generic instance.
626 mono_class_get_generic_class (MonoClass *klass)
628 g_assert (klass->is_inflated);
630 return klass->generic_class;
634 * mono_class_inflate_generic_type_with_mempool:
635 * @mempool: a mempool
637 * @context: a generics context
639 * The same as mono_class_inflate_generic_type, but allocates the MonoType
640 * from mempool if it is non-NULL. If it is NULL, the MonoType is
641 * allocated on the heap and is owned by the caller.
642 * The returned type can potentially be the same as TYPE, so it should not be
643 * modified by the caller, and it should be freed using mono_metadata_free_type ().
646 mono_class_inflate_generic_type_with_mempool (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
648 MonoType *inflated = NULL;
651 inflated = inflate_generic_type (mempool, type, context);
654 MonoType *shared = mono_metadata_get_shared_type (type);
659 return mono_metadata_type_dup (mempool, type);
663 mono_stats.inflated_type_count++;
668 * mono_class_inflate_generic_type:
670 * @context: a generics context
672 * If @type is a generic type and @context is not NULL, instantiate it using the
673 * generics context @context.
675 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
676 * on the heap and is owned by the caller.
679 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
681 return mono_class_inflate_generic_type_with_mempool (NULL, type, context);
685 * mono_class_inflate_generic_type_with_mempool_no_copy:
687 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
691 mono_class_inflate_generic_type_with_mempool_no_copy (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
693 MonoType *inflated = NULL;
696 inflated = inflate_generic_type (mempool, type, context);
701 mono_stats.inflated_type_count++;
706 * mono_class_inflate_generic_class:
708 * Inflate the class GKLASS with CONTEXT.
711 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
716 inflated = mono_class_inflate_generic_type (&gklass->byval_arg, context);
718 res = mono_class_from_mono_type (inflated);
719 mono_metadata_free_type (inflated);
724 static MonoGenericContext
725 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
727 MonoGenericInst *class_inst = NULL;
728 MonoGenericInst *method_inst = NULL;
729 MonoGenericContext res;
731 if (context->class_inst)
732 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
734 if (context->method_inst)
735 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
737 res.class_inst = class_inst;
738 res.method_inst = method_inst;
744 * mono_class_inflate_generic_method:
745 * @method: a generic method
746 * @context: a generics context
748 * Instantiate the generic method @method using the generics context @context.
750 * Returns: the new instantiated method
753 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
755 return mono_class_inflate_generic_method_full (method, NULL, context);
759 * mono_class_inflate_generic_method:
761 * Instantiate method @method with the generic context @context.
762 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
763 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
766 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
769 MonoMethodInflated *iresult, *cached;
770 MonoMethodSignature *sig;
771 MonoGenericContext tmp_context;
772 gboolean is_mb_open = FALSE;
774 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
775 while (method->is_inflated) {
776 MonoGenericContext *method_context = mono_method_get_context (method);
777 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
779 tmp_context = inflate_generic_context (method_context, context);
780 context = &tmp_context;
782 if (mono_metadata_generic_context_equal (method_context, context))
785 method = imethod->declaring;
788 if (!method->is_generic && !method->klass->generic_container)
792 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
793 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
794 * This is opposite to the way non-SRE MethodInfos behave.
796 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
798 * void Example<T> () {
802 * In Example, the method token must be encoded as: "void Example<!!0>()"
804 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
805 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
807 * On the other hand, inflating a non-SRE generic method with its own arguments should
808 * return itself. For example:
810 * MethodInfo m = ... //m is a generic method definition
811 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
814 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
815 * what happens with regular methods.
817 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
818 * everything should behave like a regular type or method.
821 is_mb_open = method->is_generic &&
822 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
823 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
825 iresult = g_new0 (MonoMethodInflated, 1);
826 iresult->context = *context;
827 iresult->declaring = method;
828 iresult->method.method.is_mb_open = is_mb_open;
830 if (!context->method_inst && method->is_generic)
831 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
833 if (!context->class_inst) {
834 g_assert (!iresult->declaring->klass->generic_class);
835 if (iresult->declaring->klass->generic_container)
836 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
837 else if (iresult->declaring->klass->generic_class)
838 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
842 cached = mono_method_inflated_lookup (iresult, FALSE);
844 mono_loader_unlock ();
846 return (MonoMethod*)cached;
849 mono_stats.inflated_method_count++;
851 inflated_methods_size += sizeof (MonoMethodInflated);
853 sig = mono_method_signature (method);
855 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
857 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
858 iresult->method.normal.header = NULL;
861 result = (MonoMethod *) iresult;
862 result->is_inflated = TRUE;
863 result->is_generic = FALSE;
864 result->signature = NULL;
865 result->is_mb_open = is_mb_open;
867 if (!context->method_inst) {
868 /* Set the generic_container of the result to the generic_container of method */
869 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
871 if (generic_container) {
872 result->is_generic = 1;
873 mono_method_set_generic_container (result, generic_container);
877 if (!klass_hint || !klass_hint->generic_class ||
878 klass_hint->generic_class->container_class != method->klass ||
879 klass_hint->generic_class->context.class_inst != context->class_inst)
882 if (method->klass->generic_container)
883 result->klass = klass_hint;
885 if (!result->klass) {
886 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context);
887 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
889 mono_metadata_free_type (inflated);
892 mono_method_inflated_lookup (iresult, TRUE);
893 mono_loader_unlock ();
898 * mono_get_inflated_method:
900 * Obsolete. We keep it around since it's mentioned in the public API.
903 mono_get_inflated_method (MonoMethod *method)
909 * mono_method_get_context_general:
911 * @uninflated: handle uninflated methods?
913 * Returns the generic context of a method or NULL if it doesn't have
914 * one. For an inflated method that's the context stored in the
915 * method. Otherwise it's in the method's generic container or in the
916 * generic container of the method's class.
919 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
921 if (method->is_inflated) {
922 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
923 return &imethod->context;
927 if (method->is_generic)
928 return &(mono_method_get_generic_container (method)->context);
929 if (method->klass->generic_container)
930 return &method->klass->generic_container->context;
935 * mono_method_get_context:
938 * Returns the generic context for method if it's inflated, otherwise
942 mono_method_get_context (MonoMethod *method)
944 return mono_method_get_context_general (method, FALSE);
948 * mono_method_get_generic_container:
950 * Returns the generic container of METHOD, which should be a generic method definition.
951 * Returns NULL if METHOD is not a generic method definition.
952 * LOCKING: Acquires the loader lock.
954 MonoGenericContainer*
955 mono_method_get_generic_container (MonoMethod *method)
957 MonoGenericContainer *container;
959 if (!method->is_generic)
963 container = mono_property_hash_lookup (method->klass->image->property_hash, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
964 mono_loader_unlock ();
965 g_assert (container);
971 * mono_method_set_generic_container:
973 * Sets the generic container of METHOD to CONTAINER.
974 * LOCKING: Acquires the loader lock.
977 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
979 g_assert (method->is_generic);
982 mono_property_hash_insert (method->klass->image->property_hash, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
983 mono_loader_unlock ();
987 * mono_class_find_enum_basetype:
988 * @class: The enum class
990 * Determine the basetype of an enum by iterating through its fields. We do this
991 * in a separate function since it is cheaper than calling mono_class_setup_fields.
994 mono_class_find_enum_basetype (MonoClass *class)
996 MonoImage *m = class->image;
997 const int top = class->field.count;
1000 g_assert (class->enumtype);
1003 * Fetch all the field information.
1005 for (i = 0; i < top; i++){
1007 guint32 cols [MONO_FIELD_SIZE];
1008 int idx = class->field.first + i;
1009 MonoGenericContainer *container = NULL;
1012 /* class->field.first and idx points into the fieldptr table */
1013 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1014 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1015 mono_metadata_decode_value (sig, &sig);
1016 /* FIELD signature == 0x06 */
1017 g_assert (*sig == 0x06);
1018 if (class->generic_container)
1019 container = class->generic_container;
1020 else if (class->generic_class) {
1021 MonoClass *gklass = class->generic_class->container_class;
1023 container = gklass->generic_container;
1024 g_assert (container);
1026 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1029 if (class->generic_class) {
1030 //FIXME do we leak here?
1031 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1032 ftype->attrs = cols [MONO_FIELD_FLAGS];
1035 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
1043 * mono_class_setup_fields:
1044 * @class: The class to initialize
1046 * Initializes the class->fields.
1047 * LOCKING: Assumes the loader lock is held.
1050 mono_class_setup_fields (MonoClass *class)
1052 MonoImage *m = class->image;
1053 int top = class->field.count;
1054 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1055 int i, blittable = TRUE;
1056 guint32 real_size = 0;
1057 guint32 packing_size = 0;
1058 gboolean explicit_size;
1059 MonoClassField *field;
1060 MonoGenericContainer *container = NULL;
1061 MonoClass *gklass = NULL;
1063 if (class->size_inited)
1066 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1068 * This happens when a generic instance of an unfinished generic typebuilder
1069 * is used as an element type for creating an array type. We can't initialize
1070 * the fields of this class using the fields of gklass, since gklass is not
1071 * finished yet, fields could be added to it later.
1076 if (class->generic_class) {
1077 MonoClass *gklass = class->generic_class->container_class;
1078 mono_class_setup_fields (gklass);
1079 top = gklass->field.count;
1080 class->field.count = gklass->field.count;
1083 class->instance_size = 0;
1085 class->sizes.class_size = 0;
1087 if (class->parent) {
1088 /* For generic instances, class->parent might not have been initialized */
1089 mono_class_init (class->parent);
1090 if (!class->parent->size_inited)
1091 mono_class_setup_fields (class->parent);
1092 class->instance_size += class->parent->instance_size;
1093 class->min_align = class->parent->min_align;
1094 /* we use |= since it may have been set already */
1095 class->has_references |= class->parent->has_references;
1096 blittable = class->parent->blittable;
1098 class->instance_size = sizeof (MonoObject);
1099 class->min_align = 1;
1102 if (class->simd_type)
1103 class->min_align = 16;
1105 /* Get the real size */
1106 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1108 if (explicit_size) {
1109 g_assert ((packing_size & 0xfffffff0) == 0);
1110 class->packing_size = packing_size;
1111 real_size += class->instance_size;
1115 if (explicit_size && real_size) {
1116 class->instance_size = MAX (real_size, class->instance_size);
1118 class->size_inited = 1;
1119 class->blittable = blittable;
1123 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1126 /* Prevent infinite loops if the class references itself */
1127 class->size_inited = 1;
1129 class->fields = mono_image_alloc0 (class->image, sizeof (MonoClassField) * top);
1131 if (class->generic_container) {
1132 container = class->generic_container;
1133 } else if (class->generic_class) {
1134 gklass = class->generic_class->container_class;
1135 container = gklass->generic_container;
1136 g_assert (container);
1138 mono_class_setup_fields (gklass);
1140 if (gklass->exception_type) {
1141 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1147 * Fetch all the field information.
1149 for (i = 0; i < top; i++){
1150 int idx = class->field.first + i;
1151 field = &class->fields [i];
1153 field->parent = class;
1155 if (class->generic_class) {
1156 MonoClassField *gfield = &gklass->fields [i];
1158 field->name = mono_field_get_name (gfield);
1159 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1160 field->type = mono_class_inflate_generic_type_with_mempool_no_copy (class->image->mempool, gfield->type, mono_class_get_context (class));
1161 g_assert (field->type->attrs == gfield->type->attrs);
1162 if (mono_field_is_deleted (field))
1164 field->offset = gfield->offset;
1167 guint32 cols [MONO_FIELD_SIZE];
1169 /* class->field.first and idx points into the fieldptr table */
1170 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1171 /* The name is needed for fieldrefs */
1172 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1173 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1174 mono_metadata_decode_value (sig, &sig);
1175 /* FIELD signature == 0x06 */
1176 g_assert (*sig == 0x06);
1177 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1179 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1182 if (mono_field_is_deleted (field))
1184 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1186 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1187 field->offset = offset;
1188 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1189 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1190 class->name, mono_field_get_name (field));
1194 /* Only do these checks if we still think this type is blittable */
1195 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1196 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1199 MonoClass *field_class = mono_class_from_mono_type (field->type);
1201 mono_class_setup_fields (field_class);
1202 if (!field_class || !field_class->blittable)
1207 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1208 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1209 blittable = class->element_class->blittable;
1212 /* The def_value of fields is compute lazily during vtable creation */
1215 if (class == mono_defaults.string_class)
1218 class->blittable = blittable;
1220 if (class->enumtype && !mono_class_enum_basetype (class)) {
1221 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1224 if (explicit_size && real_size) {
1225 class->instance_size = MAX (real_size, class->instance_size);
1228 if (class->exception_type)
1230 mono_class_layout_fields (class);
1234 * mono_class_setup_fields_locking:
1235 * @class: The class to initialize
1237 * Initializes the class->fields array of fields.
1238 * Aquires the loader lock.
1241 mono_class_setup_fields_locking (MonoClass *class)
1243 mono_loader_lock ();
1244 mono_class_setup_fields (class);
1245 mono_loader_unlock ();
1249 * mono_class_has_references:
1251 * Returns whenever @klass->has_references is set, initializing it if needed.
1252 * Aquires the loader lock.
1255 mono_class_has_references (MonoClass *klass)
1257 if (klass->init_pending) {
1258 /* Be conservative */
1261 mono_class_init (klass);
1263 return klass->has_references;
1267 /* useful until we keep track of gc-references in corlib etc. */
1269 #define IS_GC_REFERENCE(t) FALSE
1271 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1275 * mono_type_get_basic_type_from_generic:
1278 * Returns a closed type corresponding to the possibly open type
1282 mono_type_get_basic_type_from_generic (MonoType *type)
1284 /* When we do generic sharing we let type variables stand for reference types. */
1285 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1286 return &mono_defaults.object_class->byval_arg;
1291 * mono_class_layout_fields:
1294 * Compute the placement of fields inside an object or struct, according to
1295 * the layout rules and set the following fields in @class:
1296 * - has_references (if the class contains instance references firled or structs that contain references)
1297 * - has_static_refs (same, but for static fields)
1298 * - instance_size (size of the object in memory)
1299 * - class_size (size needed for the static fields)
1300 * - size_inited (flag set when the instance_size is set)
1302 * LOCKING: this is supposed to be called with the loader lock held.
1305 mono_class_layout_fields (MonoClass *class)
1308 const int top = class->field.count;
1309 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1310 guint32 pass, passes, real_size;
1311 gboolean gc_aware_layout = FALSE;
1312 MonoClassField *field;
1315 * When we do generic sharing we need to have layout
1316 * information for open generic classes (either with a generic
1317 * context containing type variables or with a generic
1318 * container), so we don't return in that case anymore.
1322 * Enable GC aware auto layout: in this mode, reference
1323 * fields are grouped together inside objects, increasing collector
1325 * Requires that all classes whose layout is known to native code be annotated
1326 * with [StructLayout (LayoutKind.Sequential)]
1327 * Value types have gc_aware_layout disabled by default, as per
1328 * what the default is for other runtimes.
1330 /* corlib is missing [StructLayout] directives in many places */
1331 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1332 if (class->image != mono_defaults.corlib &&
1333 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1334 gc_aware_layout = TRUE;
1335 /* from System.dll, used in metadata/process.h */
1336 if (strcmp (class->name, "ProcessStartInfo") == 0)
1337 gc_aware_layout = FALSE;
1340 /* Compute klass->has_references */
1342 * Process non-static fields first, since static fields might recursively
1343 * refer to the class itself.
1345 for (i = 0; i < top; i++) {
1348 field = &class->fields [i];
1350 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1351 ftype = mono_type_get_underlying_type (field->type);
1352 ftype = mono_type_get_basic_type_from_generic (ftype);
1353 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1354 class->has_references = TRUE;
1358 for (i = 0; i < top; i++) {
1361 field = &class->fields [i];
1363 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1364 ftype = mono_type_get_underlying_type (field->type);
1365 ftype = mono_type_get_basic_type_from_generic (ftype);
1366 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1367 class->has_static_refs = TRUE;
1371 for (i = 0; i < top; i++) {
1374 field = &class->fields [i];
1376 ftype = mono_type_get_underlying_type (field->type);
1377 ftype = mono_type_get_basic_type_from_generic (ftype);
1378 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1379 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1380 class->has_static_refs = TRUE;
1382 class->has_references = TRUE;
1387 * Compute field layout and total size (not considering static fields)
1391 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1392 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1394 if (gc_aware_layout)
1399 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1403 real_size = class->parent->instance_size;
1405 real_size = sizeof (MonoObject);
1407 for (pass = 0; pass < passes; ++pass) {
1408 for (i = 0; i < top; i++){
1413 field = &class->fields [i];
1415 if (mono_field_is_deleted (field))
1417 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1420 ftype = mono_type_get_underlying_type (field->type);
1421 ftype = mono_type_get_basic_type_from_generic (ftype);
1422 if (gc_aware_layout) {
1423 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1432 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1433 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1434 /* This field is a hack inserted by MCS to empty structures */
1438 size = mono_type_size (field->type, &align);
1440 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1441 align = class->packing_size ? MIN (class->packing_size, align): align;
1442 /* if the field has managed references, we need to force-align it
1445 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1446 align = MAX (align, sizeof (gpointer));
1448 class->min_align = MAX (align, class->min_align);
1449 field->offset = real_size;
1450 field->offset += align - 1;
1451 field->offset &= ~(align - 1);
1452 real_size = field->offset + size;
1455 class->instance_size = MAX (real_size, class->instance_size);
1457 if (class->instance_size & (class->min_align - 1)) {
1458 class->instance_size += class->min_align - 1;
1459 class->instance_size &= ~(class->min_align - 1);
1463 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1465 for (i = 0; i < top; i++) {
1470 field = &class->fields [i];
1473 * There must be info about all the fields in a type if it
1474 * uses explicit layout.
1477 if (mono_field_is_deleted (field))
1479 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1482 size = mono_type_size (field->type, &align);
1483 class->min_align = MAX (align, class->min_align);
1486 * When we get here, field->offset is already set by the
1487 * loader (for either runtime fields or fields loaded from metadata).
1488 * The offset is from the start of the object: this works for both
1489 * classes and valuetypes.
1491 field->offset += sizeof (MonoObject);
1492 ftype = mono_type_get_underlying_type (field->type);
1493 ftype = mono_type_get_basic_type_from_generic (ftype);
1494 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1495 if (field->offset % sizeof (gpointer)) {
1496 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1503 real_size = MAX (real_size, size + field->offset);
1505 class->instance_size = MAX (real_size, class->instance_size);
1509 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1511 * For small structs, set min_align to at least the struct size to improve
1512 * performance, and since the JIT memset/memcpy code assumes this and generates
1513 * unaligned accesses otherwise. See #78990 for a testcase.
1515 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1516 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1519 class->size_inited = 1;
1522 * Compute static field layout and size
1524 for (i = 0; i < top; i++){
1528 field = &class->fields [i];
1530 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1532 if (mono_field_is_deleted (field))
1535 size = mono_type_size (field->type, &align);
1536 field->offset = class->sizes.class_size;
1537 field->offset += align - 1;
1538 field->offset &= ~(align - 1);
1539 class->sizes.class_size = field->offset + size;
1544 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1548 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1549 method->klass = class;
1550 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1551 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1552 method->signature = sig;
1553 method->name = name;
1556 if (name [0] == '.') {
1557 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1559 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1565 * mono_class_setup_methods:
1568 * Initializes the 'methods' array in the klass.
1569 * Calling this method should be avoided if possible since it allocates a lot
1570 * of long-living MonoMethod structures.
1571 * Methods belonging to an interface are assigned a sequential slot starting
1575 mono_class_setup_methods (MonoClass *class)
1578 MonoMethod **methods;
1583 mono_loader_lock ();
1585 if (class->methods) {
1586 mono_loader_unlock ();
1590 if (class->generic_class) {
1591 MonoClass *gklass = class->generic_class->container_class;
1593 mono_class_init (gklass);
1594 mono_class_setup_methods (gklass);
1596 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1597 class->method.count = gklass->method.count;
1598 methods = g_new0 (MonoMethod *, class->method.count + 1);
1600 for (i = 0; i < class->method.count; i++) {
1601 methods [i] = mono_class_inflate_generic_method_full (
1602 gklass->methods [i], class, mono_class_get_context (class));
1604 } else if (class->rank) {
1605 MonoMethod *amethod;
1606 MonoMethodSignature *sig;
1607 int count_generic = 0, first_generic = 0;
1610 class->method.count = 3 + (class->rank > 1? 2: 1);
1612 mono_class_setup_interfaces (class);
1614 if (class->interface_count) {
1615 count_generic = generic_array_methods (class);
1616 first_generic = class->method.count;
1617 class->method.count += class->interface_count * count_generic;
1620 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1622 sig = mono_metadata_signature_alloc (class->image, class->rank);
1623 sig->ret = &mono_defaults.void_class->byval_arg;
1624 sig->pinvoke = TRUE;
1625 sig->hasthis = TRUE;
1626 for (i = 0; i < class->rank; ++i)
1627 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1629 amethod = create_array_method (class, ".ctor", sig);
1630 methods [method_num++] = amethod;
1631 if (class->rank > 1) {
1632 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1633 sig->ret = &mono_defaults.void_class->byval_arg;
1634 sig->pinvoke = TRUE;
1635 sig->hasthis = TRUE;
1636 for (i = 0; i < class->rank * 2; ++i)
1637 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1639 amethod = create_array_method (class, ".ctor", sig);
1640 methods [method_num++] = amethod;
1642 /* element Get (idx11, [idx2, ...]) */
1643 sig = mono_metadata_signature_alloc (class->image, class->rank);
1644 sig->ret = &class->element_class->byval_arg;
1645 sig->pinvoke = TRUE;
1646 sig->hasthis = TRUE;
1647 for (i = 0; i < class->rank; ++i)
1648 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1649 amethod = create_array_method (class, "Get", sig);
1650 methods [method_num++] = amethod;
1651 /* element& Address (idx11, [idx2, ...]) */
1652 sig = mono_metadata_signature_alloc (class->image, class->rank);
1653 sig->ret = &class->element_class->this_arg;
1654 sig->pinvoke = TRUE;
1655 sig->hasthis = TRUE;
1656 for (i = 0; i < class->rank; ++i)
1657 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1658 amethod = create_array_method (class, "Address", sig);
1659 methods [method_num++] = amethod;
1660 /* void Set (idx11, [idx2, ...], element) */
1661 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1662 sig->ret = &mono_defaults.void_class->byval_arg;
1663 sig->pinvoke = TRUE;
1664 sig->hasthis = TRUE;
1665 for (i = 0; i < class->rank; ++i)
1666 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1667 sig->params [i] = &class->element_class->byval_arg;
1668 amethod = create_array_method (class, "Set", sig);
1669 methods [method_num++] = amethod;
1671 for (i = 0; i < class->interface_count; i++)
1672 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1674 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1675 for (i = 0; i < class->method.count; ++i) {
1676 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1677 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1681 if (MONO_CLASS_IS_INTERFACE (class))
1682 for (i = 0; i < class->method.count; ++i)
1683 methods [i]->slot = i;
1685 /* Needed because of the double-checking locking pattern */
1686 mono_memory_barrier ();
1688 class->methods = methods;
1690 if (mono_debugger_class_loaded_methods_func)
1691 mono_debugger_class_loaded_methods_func (class);
1693 mono_loader_unlock ();
1697 * mono_class_get_method_by_index:
1699 * Returns class->methods [index], initializing class->methods if neccesary.
1701 * LOCKING: Acquires the loader lock.
1704 mono_class_get_method_by_index (MonoClass *class, int index)
1706 /* Avoid calling setup_methods () if possible */
1707 if (class->generic_class && !class->methods) {
1708 MonoClass *gklass = class->generic_class->container_class;
1711 m = mono_class_inflate_generic_method_full (
1712 gklass->methods [index], class, mono_class_get_context (class));
1714 * If setup_methods () is called later for this class, no duplicates are created,
1715 * since inflate_generic_method guarantees that only one instance of a method
1716 * is created for each context.
1719 mono_class_setup_methods (class);
1720 g_assert (m == class->methods [index]);
1724 mono_class_setup_methods (class);
1725 g_assert (index >= 0 && index < class->method.count);
1726 return class->methods [index];
1731 * mono_class_get_inflated_method:
1733 * Given an inflated class CLASS and a method METHOD which should be a method of
1734 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1737 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1739 MonoClass *gklass = class->generic_class->container_class;
1742 mono_class_setup_methods (gklass);
1743 for (i = 0; i < gklass->method.count; ++i) {
1744 if (gklass->methods [i] == method) {
1746 return class->methods [i];
1748 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
1756 * mono_class_get_vtable_entry:
1758 * Returns class->vtable [offset], computing it if neccesary.
1759 * LOCKING: Acquires the loader lock.
1762 mono_class_get_vtable_entry (MonoClass *class, int offset)
1764 if (class->generic_class) {
1765 MonoClass *gklass = class->generic_class->container_class;
1766 mono_class_setup_vtable (gklass);
1767 if (gklass->vtable [offset]->wrapper_type == MONO_WRAPPER_STATIC_RGCTX_INVOKE) {
1768 MonoMethod *method = mono_marshal_method_from_wrapper (gklass->vtable [offset]);
1769 method = mono_class_inflate_generic_method_full (method, class, mono_class_get_context (class));
1770 return mono_marshal_get_static_rgctx_invoke (method);
1772 return mono_class_inflate_generic_method_full (gklass->vtable [offset], class, mono_class_get_context (class));
1776 if (class->rank == 1) {
1778 * szarrays do not overwrite any methods of Array, so we can avoid
1779 * initializing their vtables in some cases.
1781 mono_class_setup_vtable (class->parent);
1782 if (offset < class->parent->vtable_size)
1783 return class->parent->vtable [offset];
1786 mono_class_setup_vtable (class);
1787 return class->vtable [offset];
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 ();
2731 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2733 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2734 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2736 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL)
2737 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2741 #define DEBUG_INTERFACE_VTABLE_CODE 0
2742 #define TRACE_INTERFACE_VTABLE_CODE 0
2743 #define VERIFY_INTERFACE_VTABLE_CODE 0
2745 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2746 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2750 #define DEBUG_INTERFACE_VTABLE(stmt)
2753 #if TRACE_INTERFACE_VTABLE_CODE
2754 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2758 #define TRACE_INTERFACE_VTABLE(stmt)
2761 #if VERIFY_INTERFACE_VTABLE_CODE
2762 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
2766 #define VERIFY_INTERFACE_VTABLE(stmt)
2770 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2772 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2776 GString *res = g_string_new ("");
2778 g_string_append_c (res, '(');
2779 for (i = 0; i < sig->param_count; ++i) {
2781 g_string_append_c (res, ',');
2782 mono_type_get_desc (res, sig->params [i], include_namespace);
2784 g_string_append (res, ")=>");
2785 if (sig->ret != NULL) {
2786 mono_type_get_desc (res, sig->ret, include_namespace);
2788 g_string_append (res, "NULL");
2791 g_string_free (res, FALSE);
2795 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2796 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2797 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2798 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2806 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) {
2807 if (strcmp (im->name, cm->name) == 0) {
2808 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2809 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2812 if (! slot_is_empty) {
2813 if (require_newslot) {
2814 if (! interface_is_explicitly_implemented_by_class) {
2815 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2818 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2819 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2823 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2826 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2827 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2828 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2829 TRACE_INTERFACE_VTABLE (printf ("]"));
2832 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2833 /* CAS - SecurityAction.InheritanceDemand on interface */
2834 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2835 mono_secman_inheritancedemand_method (cm, im);
2838 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2839 check_core_clr_override_method (class, cm, im);
2840 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2843 MonoClass *ic = im->klass;
2844 const char *ic_name_space = ic->name_space;
2845 const char *ic_name = ic->name;
2848 if (! require_newslot) {
2849 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2852 if (cm->klass->rank == 0) {
2853 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2856 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2857 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2858 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2859 TRACE_INTERFACE_VTABLE (printf ("]"));
2862 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2863 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2866 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2867 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2870 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2871 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2875 subname = strstr (cm->name, ic_name_space);
2876 if (subname != cm->name) {
2877 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2880 subname += strlen (ic_name_space);
2881 if (subname [0] != '.') {
2882 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2886 if (strstr (subname, ic_name) != subname) {
2887 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2890 subname += strlen (ic_name);
2891 if (subname [0] != '.') {
2892 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2896 if (strcmp (subname, im->name) != 0) {
2897 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2901 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2902 /* CAS - SecurityAction.InheritanceDemand on interface */
2903 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2904 mono_secman_inheritancedemand_method (cm, im);
2907 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2908 check_core_clr_override_method (class, cm, im);
2910 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2915 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2917 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2918 MonoMethod *method = key;
2919 MonoMethod *override = value;
2920 MonoClass *method_class = mono_method_get_class (method);
2921 MonoClass *override_class = mono_method_get_class (override);
2923 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2924 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2925 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2928 print_overrides (GHashTable *override_map, const char *message) {
2930 printf ("Override map \"%s\" START:\n", message);
2931 g_hash_table_foreach (override_map, foreach_override, NULL);
2932 printf ("Override map \"%s\" END.\n", message);
2934 printf ("Override map \"%s\" EMPTY.\n", message);
2938 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2939 char *full_name = mono_type_full_name (&class->byval_arg);
2943 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2945 if (print_interfaces) {
2946 print_implemented_interfaces (class);
2947 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2950 if (class->parent) {
2951 parent_size = class->parent->vtable_size;
2955 for (i = 0; i < size; ++i) {
2956 MonoMethod *cm = vtable [i];
2958 char *cm_name = mono_method_full_name (cm, TRUE);
2959 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2960 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2969 #if VERIFY_INTERFACE_VTABLE_CODE
2971 mono_method_try_get_vtable_index (MonoMethod *method)
2973 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2974 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
2975 if (imethod->declaring->is_generic)
2976 return imethod->declaring->slot;
2978 return method->slot;
2982 mono_class_verify_vtable (MonoClass *class)
2985 char *full_name = mono_type_full_name (&class->byval_arg);
2987 printf ("*** Verifying VTable of class '%s' \n", full_name);
2991 if (!class->methods)
2994 for (i = 0; i < class->method.count; ++i) {
2995 MonoMethod *cm = class->methods [i];
2998 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3002 full_name = mono_method_full_name (cm, TRUE);
3004 slot = mono_method_try_get_vtable_index (cm);
3006 if (slot >= class->vtable_size) {
3007 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3011 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot] && class->vtable [slot]->wrapper_type != MONO_WRAPPER_STATIC_RGCTX_INVOKE)) {
3012 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3013 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3014 g_free (other_name);
3017 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3024 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3026 char *method_signature;
3028 for (index = 0; index < onum; ++index) {
3029 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3030 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3032 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3033 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
3034 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
3035 g_free (method_signature);
3036 mono_class_setup_methods (class);
3037 for (index = 0; index < class->method.count; ++index) {
3038 MonoMethod *cm = class->methods [index];
3039 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3041 printf ("METHOD %s(%s)\n", cm->name, method_signature);
3042 g_free (method_signature);
3047 * LOCKING: this is supposed to be called with the loader lock held.
3050 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3053 MonoMethod **vtable;
3054 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3055 GPtrArray *ifaces = NULL;
3056 GHashTable *override_map = NULL;
3057 gboolean security_enabled = mono_is_security_manager_active ();
3059 gpointer class_iter;
3060 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3061 int first_non_interface_slot;
3067 ifaces = mono_class_get_implemented_interfaces (class);
3069 for (i = 0; i < ifaces->len; i++) {
3070 MonoClass *ic = g_ptr_array_index (ifaces, i);
3071 max_vtsize += ic->method.count;
3073 g_ptr_array_free (ifaces, TRUE);
3077 if (class->parent) {
3078 mono_class_init (class->parent);
3079 mono_class_setup_vtable (class->parent);
3080 max_vtsize += class->parent->vtable_size;
3081 cur_slot = class->parent->vtable_size;
3084 max_vtsize += class->method.count;
3086 vtable = alloca (sizeof (gpointer) * max_vtsize);
3087 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3089 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3091 cur_slot = setup_interface_offsets (class, cur_slot);
3092 max_iid = class->max_interface_id;
3093 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3095 /* Optimized version for generic instances */
3096 if (class->generic_class) {
3097 MonoClass *gklass = class->generic_class->container_class;
3098 gboolean usable = TRUE;
3100 mono_class_setup_vtable (gklass);
3101 for (i = 0; i < gklass->vtable_size; ++i)
3102 if (gklass->vtable [i] && gklass->vtable [i]->wrapper_type == MONO_WRAPPER_STATIC_RGCTX_INVOKE)
3106 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
3107 class->vtable_size = gklass->vtable_size;
3108 for (i = 0; i < gklass->vtable_size; ++i)
3109 if (gklass->vtable [i]) {
3110 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
3111 tmp [i]->slot = gklass->vtable [i]->slot;
3113 mono_memory_barrier ();
3114 class->vtable = tmp;
3116 /* Have to set method->slot for abstract virtual methods */
3117 if (class->methods && gklass->methods) {
3118 for (i = 0; i < class->method.count; ++i)
3119 if (class->methods [i]->slot == -1)
3120 class->methods [i]->slot = gklass->methods [i]->slot;
3127 if (class->parent && class->parent->vtable_size) {
3128 MonoClass *parent = class->parent;
3131 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3133 // Also inherit parent interface vtables, just as a starting point.
3134 // This is needed otherwise bug-77127.exe fails when the property methods
3135 // have different names in the iterface and the class, because for child
3136 // classes the ".override" information is not used anymore.
3137 for (i = 0; i < parent->interface_offsets_count; i++) {
3138 MonoClass *parent_interface = parent->interfaces_packed [i];
3139 int interface_offset = mono_class_interface_offset (class, parent_interface);
3141 if (interface_offset >= parent->vtable_size) {
3142 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3145 mono_class_setup_methods (parent_interface);
3146 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3147 for (j = 0; j < parent_interface->method.count; j++) {
3148 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3149 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3150 parent_interface_offset + j, parent_interface_offset, j,
3151 interface_offset + j, interface_offset, j));
3158 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3159 /* override interface methods */
3160 for (i = 0; i < onum; i++) {
3161 MonoMethod *decl = overrides [i*2];
3162 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3164 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
3165 vtable [dslot] = overrides [i*2 + 1];
3166 vtable [dslot]->slot = dslot;
3168 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3170 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3172 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3173 check_core_clr_override_method (class, vtable [dslot], decl);
3176 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3177 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3179 // Loop on all implemented interfaces...
3180 for (i = 0; i < class->interface_offsets_count; i++) {
3181 MonoClass *parent = class->parent;
3183 gboolean interface_is_explicitly_implemented_by_class;
3186 ic = class->interfaces_packed [i];
3187 ic_offset = mono_class_interface_offset (class, ic);
3189 mono_class_setup_methods (ic);
3191 // Check if this interface is explicitly implemented (instead of just inherited)
3192 if (parent != NULL) {
3193 int implemented_interfaces_index;
3194 interface_is_explicitly_implemented_by_class = FALSE;
3195 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3196 if (ic == class->interfaces [implemented_interfaces_index]) {
3197 interface_is_explicitly_implemented_by_class = TRUE;
3202 interface_is_explicitly_implemented_by_class = TRUE;
3205 // Loop on all interface methods...
3206 for (im_index = 0; im_index < ic->method.count; im_index++) {
3207 MonoMethod *im = ic->methods [im_index];
3208 int im_slot = ic_offset + im->slot;
3209 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3211 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3214 // If there is an explicit implementation, just use it right away,
3215 // otherwise look for a matching method
3216 if (override_im == NULL) {
3221 // First look for a suitable method among the class methods
3223 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3224 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)));
3225 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3226 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3227 vtable [im_slot] = cm;
3228 /* Why do we need this? */
3233 TRACE_INTERFACE_VTABLE (printf ("\n"));
3236 // If the slot is still empty, look in all the inherited virtual methods...
3237 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3238 MonoClass *parent = class->parent;
3239 // Reverse order, so that last added methods are preferred
3240 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3241 MonoMethod *cm = parent->vtable [cm_index];
3243 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));
3244 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3245 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3246 vtable [im_slot] = cm;
3247 /* Why do we need this? */
3253 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3257 g_assert (vtable [im_slot] == override_im);
3262 // If the class is not abstract, check that all its interface slots are full.
3263 // The check is done here and not directly at the end of the loop above because
3264 // it can happen (for injected generic array interfaces) that the same slot is
3265 // processed multiple times (those interfaces have overlapping slots), and it
3266 // will not always be the first pass the one that fills the slot.
3267 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3268 for (i = 0; i < class->interface_offsets_count; i++) {
3272 ic = class->interfaces_packed [i];
3273 ic_offset = mono_class_interface_offset (class, ic);
3275 for (im_index = 0; im_index < ic->method.count; im_index++) {
3276 MonoMethod *im = ic->methods [im_index];
3277 int im_slot = ic_offset + im->slot;
3279 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3282 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3283 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3284 if (vtable [im_slot] == NULL) {
3285 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3286 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3288 g_hash_table_destroy (override_map);
3295 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3297 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3299 * If the method is REUSE_SLOT, we must check in the
3300 * base class for a method to override.
3302 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3304 for (k = class->parent; k ; k = k->parent) {
3309 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3310 MonoMethodSignature *cmsig, *m1sig;
3312 cmsig = mono_method_signature (cm);
3313 m1sig = mono_method_signature (m1);
3315 if (!cmsig || !m1sig) {
3316 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3320 if (!strcmp(cm->name, m1->name) &&
3321 mono_metadata_signature_equal (cmsig, m1sig)) {
3323 /* CAS - SecurityAction.InheritanceDemand */
3324 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3325 mono_secman_inheritancedemand_method (cm, m1);
3328 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3329 check_core_clr_override_method (class, cm, m1);
3331 slot = mono_method_get_vtable_slot (m1);
3332 g_assert (cm->slot < max_vtsize);
3334 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3335 g_hash_table_insert (override_map, m1, cm);
3347 cm->slot = cur_slot++;
3349 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3350 vtable [cm->slot] = cm;
3353 /* override non interface methods */
3354 for (i = 0; i < onum; i++) {
3355 MonoMethod *decl = overrides [i*2];
3356 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3357 g_assert (decl->slot != -1);
3358 vtable [decl->slot] = overrides [i*2 + 1];
3359 overrides [i * 2 + 1]->slot = decl->slot;
3361 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3362 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3364 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3365 check_core_clr_override_method (class, vtable [decl->slot], decl);
3370 * If a method occupies more than one place in the vtable, and it is
3371 * overriden, then change the other occurances too.
3374 for (i = 0; i < max_vtsize; ++i)
3376 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3381 g_hash_table_destroy (override_map);
3384 if (class->generic_class) {
3385 MonoClass *gklass = class->generic_class->container_class;
3387 mono_class_init (gklass);
3389 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3391 /* Check that the vtable_size value computed in mono_class_init () is correct */
3392 if (class->vtable_size)
3393 g_assert (cur_slot == class->vtable_size);
3394 class->vtable_size = cur_slot;
3397 /* FIXME: only do this if the class is actually sharable */
3398 if (class->valuetype && (class->generic_class || class->generic_container) &&
3399 mono_class_generic_sharing_enabled (class)) {
3400 for (i = 0; i < max_vtsize; ++i) {
3401 if (vtable [i] && vtable [i]->wrapper_type == MONO_WRAPPER_NONE)
3402 vtable [i] = mono_marshal_get_static_rgctx_invoke (vtable [i]);
3406 /* Try to share the vtable with our parent. */
3407 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3408 mono_memory_barrier ();
3409 class->vtable = class->parent->vtable;
3411 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3412 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3413 mono_memory_barrier ();
3414 class->vtable = tmp;
3417 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3418 if (mono_print_vtable) {
3421 print_implemented_interfaces (class);
3423 for (i = 0; i <= max_iid; i++)
3424 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3427 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3428 class->vtable_size, icount);
3430 for (i = 0; i < class->vtable_size; ++i) {
3435 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3436 mono_method_full_name (cm, TRUE));
3442 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3443 class->name, max_iid);
3445 for (i = 0; i < class->interface_count; i++) {
3446 ic = class->interfaces [i];
3447 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3448 mono_class_interface_offset (class, ic),
3449 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3452 for (k = class->parent; k ; k = k->parent) {
3453 for (i = 0; i < k->interface_count; i++) {
3454 ic = k->interfaces [i];
3455 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3456 mono_class_interface_offset (class, ic),
3457 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3463 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
3467 * mono_method_get_vtable_slot:
3469 * Returns method->slot, computing it if neccesary.
3470 * LOCKING: Acquires the loader lock.
3473 mono_method_get_vtable_slot (MonoMethod *method)
3475 if (method->slot == -1) {
3476 mono_class_setup_vtable (method->klass);
3477 g_assert (method->slot != -1);
3479 return method->slot;
3483 * mono_method_get_vtable_index:
3486 * Returns the index into the runtime vtable to access the method or,
3487 * in the case of a virtual generic method, the virtual generic method
3491 mono_method_get_vtable_index (MonoMethod *method)
3493 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3494 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3495 if (imethod->declaring->is_generic)
3496 return mono_method_get_vtable_slot (imethod->declaring);
3498 return mono_method_get_vtable_slot (method);
3501 static MonoMethod *default_ghc = NULL;
3502 static MonoMethod *default_finalize = NULL;
3503 static int finalize_slot = -1;
3504 static int ghc_slot = -1;
3507 initialize_object_slots (MonoClass *class)
3512 if (class == mono_defaults.object_class) {
3513 mono_class_setup_vtable (class);
3514 for (i = 0; i < class->vtable_size; ++i) {
3515 MonoMethod *cm = class->vtable [i];
3517 if (!strcmp (cm->name, "GetHashCode"))
3519 else if (!strcmp (cm->name, "Finalize"))
3523 g_assert (ghc_slot > 0);
3524 default_ghc = class->vtable [ghc_slot];
3526 g_assert (finalize_slot > 0);
3527 default_finalize = class->vtable [finalize_slot];
3532 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
3534 GList* n = mono_mempool_alloc (mp, sizeof (GList));
3542 MonoMethod *array_method;
3544 } GenericArrayMethodInfo;
3546 static int generic_array_method_num = 0;
3547 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3550 generic_array_methods (MonoClass *class)
3552 int i, count_generic = 0;
3553 GList *list = NULL, *tmp;
3554 if (generic_array_method_num)
3555 return generic_array_method_num;
3556 mono_class_setup_methods (class->parent);
3557 for (i = 0; i < class->parent->method.count; i++) {
3558 MonoMethod *m = class->parent->methods [i];
3559 if (!strncmp (m->name, "InternalArray__", 15)) {
3561 list = g_list_prepend (list, m);
3564 list = g_list_reverse (list);
3565 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3567 for (tmp = list; tmp; tmp = tmp->next) {
3568 const char *mname, *iname;
3570 MonoMethod *m = tmp->data;
3571 generic_array_method_info [i].array_method = m;
3572 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3573 iname = "System.Collections.Generic.ICollection`1.";
3574 mname = m->name + 27;
3575 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3576 iname = "System.Collections.Generic.IEnumerable`1.";
3577 mname = m->name + 27;
3578 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3579 iname = "System.Collections.Generic.IList`1.";
3580 mname = m->name + 15;
3582 g_assert_not_reached ();
3585 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3586 strcpy (name, iname);
3587 strcpy (name + strlen (iname), mname);
3588 generic_array_method_info [i].name = name;
3591 /*g_print ("array generic methods: %d\n", count_generic);*/
3593 generic_array_method_num = count_generic;
3595 return generic_array_method_num;
3599 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3601 MonoGenericContext tmp_context;
3604 tmp_context.class_inst = NULL;
3605 tmp_context.method_inst = iface->generic_class->context.class_inst;
3606 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3608 for (i = 0; i < generic_array_method_num; i++) {
3609 MonoMethod *m = generic_array_method_info [i].array_method;
3610 MonoMethod *inflated;
3612 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3613 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3618 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3620 int len = strlen (s1) + strlen (s2) + 2;
3621 char *s = mono_image_alloc (image, len);
3624 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3625 g_assert (result == len - 1);
3631 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3633 gpointer exception_data = NULL;
3635 switch (error->exception_type) {
3636 case MONO_EXCEPTION_TYPE_LOAD:
3637 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3640 case MONO_EXCEPTION_MISSING_METHOD:
3641 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3644 case MONO_EXCEPTION_MISSING_FIELD: {
3645 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3646 const char *class_name;
3649 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3651 class_name = error->klass->name;
3653 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3656 g_free ((void*)class_name);
3660 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3663 if (error->ref_only)
3664 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.";
3666 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3668 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3672 case MONO_EXCEPTION_BAD_IMAGE:
3673 exception_data = error->msg;
3677 g_assert_not_reached ();
3680 mono_class_set_failure (class, error->exception_type, exception_data);
3684 check_core_clr_inheritance (MonoClass *class)
3686 MonoSecurityCoreCLRLevel class_level, parent_level;
3687 MonoClass *parent = class->parent;
3692 class_level = mono_security_core_clr_class_level (class);
3693 parent_level = mono_security_core_clr_class_level (parent);
3695 if (class_level < parent_level)
3696 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3701 * @class: the class to initialize
3703 * Compute the instance_size, class_size and other infos that cannot be
3704 * computed at mono_class_get() time. Also compute vtable_size if possible.
3705 * Returns TRUE on success or FALSE if there was a problem in loading
3706 * the type (incorrect assemblies, missing assemblies, methods, etc).
3708 * LOCKING: Acquires the loader lock.
3711 mono_class_init (MonoClass *class)
3714 MonoCachedClassInfo cached_info;
3715 gboolean has_cached_info;
3716 int class_init_ok = TRUE;
3720 /* Double-checking locking pattern */
3722 return class->exception_type == MONO_EXCEPTION_NONE;
3724 /*g_print ("Init class %s\n", class->name);*/
3726 /* We do everything inside the lock to prevent races */
3727 mono_loader_lock ();
3729 if (class->inited) {
3730 mono_loader_unlock ();
3731 /* Somebody might have gotten in before us */
3732 return class->exception_type == MONO_EXCEPTION_NONE;
3735 if (class->init_pending) {
3736 mono_loader_unlock ();
3737 /* this indicates a cyclic dependency */
3738 g_error ("pending init %s.%s\n", class->name_space, class->name);
3741 class->init_pending = 1;
3743 /* CAS - SecurityAction.InheritanceDemand */
3744 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3745 mono_secman_inheritancedemand_class (class, class->parent);
3748 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3749 check_core_clr_inheritance (class);
3751 mono_stats.initialized_class_count++;
3753 if (class->generic_class && !class->generic_class->is_dynamic) {
3754 MonoClass *gklass = class->generic_class->container_class;
3756 mono_stats.generic_class_count++;
3758 class->method = gklass->method;
3759 class->field = gklass->field;
3761 mono_class_init (gklass);
3762 // FIXME: Why is this needed ?
3763 mono_class_setup_methods (gklass);
3765 if (MONO_CLASS_IS_INTERFACE (class))
3766 class->interface_id = mono_get_unique_iid (class);
3769 if (class->parent && !class->parent->inited)
3770 mono_class_init (class->parent);
3772 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3774 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3775 class->nested_classes_inited = TRUE;
3778 * Computes the size used by the fields, and their locations
3780 if (has_cached_info) {
3781 class->instance_size = cached_info.instance_size;
3782 class->sizes.class_size = cached_info.class_size;
3783 class->packing_size = cached_info.packing_size;
3784 class->min_align = cached_info.min_align;
3785 class->blittable = cached_info.blittable;
3786 class->has_references = cached_info.has_references;
3787 class->has_static_refs = cached_info.has_static_refs;
3788 class->no_special_static_fields = cached_info.no_special_static_fields;
3791 if (!class->size_inited){
3792 mono_class_setup_fields (class);
3793 if (class->exception_type || mono_loader_get_last_error ()){
3794 class_init_ok = FALSE;
3799 /* Initialize arrays */
3801 class->method.count = 3 + (class->rank > 1? 2: 1);
3803 if (class->interface_count) {
3804 int count_generic = generic_array_methods (class);
3805 class->method.count += class->interface_count * count_generic;
3809 mono_class_setup_supertypes (class);
3812 initialize_object_slots (class);
3815 * Initialize the rest of the data without creating a generic vtable if possible.
3816 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3817 * also avoid computing a generic vtable.
3819 if (has_cached_info) {
3821 class->vtable_size = cached_info.vtable_size;
3822 class->has_finalize = cached_info.has_finalize;
3823 class->ghcimpl = cached_info.ghcimpl;
3824 class->has_cctor = cached_info.has_cctor;
3825 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3826 static int szarray_vtable_size = 0;
3829 if (!szarray_vtable_size) {
3830 mono_class_setup_vtable (class);
3831 szarray_vtable_size = class->vtable_size;
3833 class->vtable_size = szarray_vtable_size;
3835 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3836 MonoClass *gklass = class->generic_class->container_class;
3838 /* Generic instance case */
3839 class->ghcimpl = gklass->ghcimpl;
3840 class->has_finalize = gklass->has_finalize;
3841 class->has_cctor = gklass->has_cctor;
3843 mono_class_setup_vtable (gklass);
3844 if (gklass->exception_type)
3847 class->vtable_size = gklass->vtable_size;
3851 /* ghcimpl is not currently used
3853 if (class->parent) {
3854 MonoMethod *cmethod = class->vtable [ghc_slot];
3855 if (cmethod->is_inflated)
3856 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3857 if (cmethod == default_ghc) {
3863 /* Interfaces and valuetypes are not supposed to have finalizers */
3864 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3865 MonoMethod *cmethod = NULL;
3867 if (class->parent && class->parent->has_finalize) {
3868 class->has_finalize = 1;
3870 if (class->type_token) {
3871 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3872 } else if (class->parent) {
3873 /* FIXME: Optimize this */
3874 mono_class_setup_vtable (class);
3875 if (class->exception_type || mono_loader_get_last_error ())
3877 cmethod = class->vtable [finalize_slot];
3881 /* Check that this is really the finalizer method */
3882 mono_class_setup_vtable (class);
3883 if (class->exception_type || mono_loader_get_last_error ())
3886 class->has_finalize = 0;
3887 if (class->parent) {
3888 cmethod = class->vtable [finalize_slot];
3889 if (cmethod->is_inflated)
3890 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3891 if (cmethod != default_finalize) {
3892 class->has_finalize = 1;
3899 /* C# doesn't allow interfaces to have cctors */
3900 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3901 MonoMethod *cmethod = NULL;
3903 if (class->type_token) {
3904 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3905 /* The find_method function ignores the 'flags' argument */
3906 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3907 class->has_cctor = 1;
3909 mono_class_setup_methods (class);
3911 for (i = 0; i < class->method.count; ++i) {
3912 MonoMethod *method = class->methods [i];
3913 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3914 (strcmp (".cctor", method->name) == 0)) {
3915 class->has_cctor = 1;
3923 if (!mono_setup_vtable_in_class_init) {
3925 * This is an embedding API break, since the caller might assume that
3926 * mono_class_init () constructs a generic vtable, so vtable construction errors
3927 * are visible right after the mono_class_init (), and not after
3928 * mono_class_vtable ().
3930 if (class->parent) {
3931 /* This will compute class->parent->vtable_size for some classes */
3932 mono_class_init (class->parent);
3933 if (class->parent->exception_type || mono_loader_get_last_error ())
3935 if (!class->parent->vtable_size) {
3936 /* FIXME: Get rid of this somehow */
3937 mono_class_setup_vtable (class->parent);
3938 if (class->parent->exception_type || mono_loader_get_last_error ())
3941 setup_interface_offsets (class, class->parent->vtable_size);
3943 setup_interface_offsets (class, 0);
3946 mono_class_setup_vtable (class);
3948 if (MONO_CLASS_IS_INTERFACE (class))
3949 setup_interface_offsets (class, 0);
3952 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3953 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
3954 class_init_ok = FALSE;
3960 class_init_ok = FALSE;
3963 /* Because of the double-checking locking pattern */
3964 mono_memory_barrier ();
3966 class->init_pending = 0;
3968 if (mono_loader_get_last_error ()) {
3969 if (class->exception_type == MONO_EXCEPTION_NONE)
3970 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3972 mono_loader_clear_error ();
3975 mono_loader_unlock ();
3977 if (mono_debugger_class_init_func)
3978 mono_debugger_class_init_func (class);
3980 return class_init_ok;
3984 is_corlib_image (MonoImage *image)
3986 /* FIXME: allow the dynamic case for our compilers and with full trust */
3988 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3990 return image == mono_defaults.corlib;
3994 * LOCKING: this assumes the loader lock is held
3997 mono_class_setup_mono_type (MonoClass *class)
3999 const char *name = class->name;
4000 const char *nspace = class->name_space;
4001 gboolean is_corlib = is_corlib_image (class->image);
4003 class->this_arg.byref = 1;
4004 class->this_arg.data.klass = class;
4005 class->this_arg.type = MONO_TYPE_CLASS;
4006 class->byval_arg.data.klass = class;
4007 class->byval_arg.type = MONO_TYPE_CLASS;
4009 if (is_corlib && !strcmp (nspace, "System")) {
4010 if (!strcmp (name, "ValueType")) {
4012 * do not set the valuetype bit for System.ValueType.
4013 * class->valuetype = 1;
4015 class->blittable = TRUE;
4016 } else if (!strcmp (name, "Enum")) {
4018 * do not set the valuetype bit for System.Enum.
4019 * class->valuetype = 1;
4021 class->valuetype = 0;
4022 class->enumtype = 0;
4023 } else if (!strcmp (name, "Object")) {
4024 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4025 } else if (!strcmp (name, "String")) {
4026 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4027 } else if (!strcmp (name, "TypedReference")) {
4028 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4032 if (class->valuetype) {
4033 int t = MONO_TYPE_VALUETYPE;
4035 if (is_corlib && !strcmp (nspace, "System")) {
4038 if (!strcmp (name, "Boolean")) {
4039 t = MONO_TYPE_BOOLEAN;
4040 } else if (!strcmp(name, "Byte")) {
4042 class->blittable = TRUE;
4046 if (!strcmp (name, "Char")) {
4051 if (!strcmp (name, "Double")) {
4053 class->blittable = TRUE;
4057 if (!strcmp (name, "Int32")) {
4059 class->blittable = TRUE;
4060 } else if (!strcmp(name, "Int16")) {
4062 class->blittable = TRUE;
4063 } else if (!strcmp(name, "Int64")) {
4065 class->blittable = TRUE;
4066 } else if (!strcmp(name, "IntPtr")) {
4068 class->blittable = TRUE;
4072 if (!strcmp (name, "Single")) {
4074 class->blittable = TRUE;
4075 } else if (!strcmp(name, "SByte")) {
4077 class->blittable = TRUE;
4081 if (!strcmp (name, "UInt32")) {
4083 class->blittable = TRUE;
4084 } else if (!strcmp(name, "UInt16")) {
4086 class->blittable = TRUE;
4087 } else if (!strcmp(name, "UInt64")) {
4089 class->blittable = TRUE;
4090 } else if (!strcmp(name, "UIntPtr")) {
4092 class->blittable = TRUE;
4096 if (!strcmp (name, "TypedReference")) {
4097 t = MONO_TYPE_TYPEDBYREF;
4098 class->blittable = TRUE;
4102 if (!strcmp (name, "Void")) {
4110 class->this_arg.type = class->byval_arg.type = t;
4113 if (MONO_CLASS_IS_INTERFACE (class))
4114 class->interface_id = mono_get_unique_iid (class);
4119 * LOCKING: this assumes the loader lock is held
4122 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4124 gboolean system_namespace;
4125 gboolean is_corlib = is_corlib_image (class->image);
4127 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4129 /* if root of the hierarchy */
4130 if (system_namespace && !strcmp (class->name, "Object")) {
4131 class->parent = NULL;
4132 class->instance_size = sizeof (MonoObject);
4135 if (!strcmp (class->name, "<Module>")) {
4136 class->parent = NULL;
4137 class->instance_size = 0;
4141 if (!MONO_CLASS_IS_INTERFACE (class)) {
4142 /* Imported COM Objects always derive from __ComObject. */
4143 if (MONO_CLASS_IS_IMPORT (class)) {
4144 mono_init_com_types ();
4145 if (parent == mono_defaults.object_class)
4146 parent = mono_defaults.com_object_class;
4149 /* set the parent to something useful and safe, but mark the type as broken */
4150 parent = mono_defaults.object_class;
4151 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4154 class->parent = parent;
4156 if (parent->generic_class && !parent->name) {
4158 * If the parent is a generic instance, we may get
4159 * called before it is fully initialized, especially
4160 * before it has its name.
4165 class->marshalbyref = parent->marshalbyref;
4166 class->contextbound = parent->contextbound;
4167 class->delegate = parent->delegate;
4168 if (MONO_CLASS_IS_IMPORT (class))
4169 class->is_com_object = 1;
4171 class->is_com_object = parent->is_com_object;
4173 if (system_namespace) {
4174 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4175 class->marshalbyref = 1;
4177 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4178 class->contextbound = 1;
4180 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4181 class->delegate = 1;
4184 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4185 (strcmp (class->parent->name_space, "System") == 0)))
4186 class->valuetype = 1;
4187 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4188 class->valuetype = class->enumtype = 1;
4190 /*class->enumtype = class->parent->enumtype; */
4191 mono_class_setup_supertypes (class);
4193 /* initialize com types if COM interfaces are present */
4194 if (MONO_CLASS_IS_IMPORT (class))
4195 mono_init_com_types ();
4196 class->parent = NULL;
4202 * mono_class_setup_supertypes:
4205 * Build the data structure needed to make fast type checks work.
4206 * This currently sets two fields in @class:
4207 * - idepth: distance between @class and System.Object in the type
4209 * - supertypes: array of classes: each element has a class in the hierarchy
4210 * starting from @class up to System.Object
4212 * LOCKING: this assumes the loader lock is held
4215 mono_class_setup_supertypes (MonoClass *class)
4219 if (class->supertypes)
4222 if (class->parent && !class->parent->supertypes)
4223 mono_class_setup_supertypes (class->parent);
4225 class->idepth = class->parent->idepth + 1;
4229 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4230 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4232 if (class->parent) {
4233 class->supertypes [class->idepth - 1] = class;
4234 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4236 class->supertypes [0] = class;
4241 * mono_class_create_from_typedef:
4242 * @image: image where the token is valid
4243 * @type_token: typedef token
4245 * Create the MonoClass* representing the specified type token.
4246 * @type_token must be a TypeDef token.
4249 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4251 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4252 MonoClass *class, *parent = NULL;
4253 guint32 cols [MONO_TYPEDEF_SIZE];
4254 guint32 cols_next [MONO_TYPEDEF_SIZE];
4255 guint tidx = mono_metadata_token_index (type_token);
4256 MonoGenericContext *context = NULL;
4257 const char *name, *nspace;
4259 MonoClass **interfaces;
4260 guint32 field_last, method_last;
4261 guint32 nesting_tokeen;
4263 mono_loader_lock ();
4265 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4266 mono_loader_unlock ();
4270 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4272 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4274 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4275 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4277 class = mono_image_alloc0 (image, sizeof (MonoClass));
4280 class->name_space = nspace;
4282 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4284 class->image = image;
4285 class->type_token = type_token;
4286 class->flags = cols [MONO_TYPEDEF_FLAGS];
4288 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4290 classes_size += sizeof (MonoClass);
4293 * Check whether we're a generic type definition.
4295 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4296 if (class->generic_container) {
4297 class->is_generic = 1;
4298 class->generic_container->owner.klass = class;
4299 context = &class->generic_container->context;
4302 if (cols [MONO_TYPEDEF_EXTENDS]) {
4303 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
4305 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
4306 /*WARNING: this must satisfy mono_metadata_type_hash*/
4307 class->this_arg.byref = 1;
4308 class->this_arg.data.klass = class;
4309 class->this_arg.type = MONO_TYPE_CLASS;
4310 class->byval_arg.data.klass = class;
4311 class->byval_arg.type = MONO_TYPE_CLASS;
4313 parent = mono_class_get_full (image, parent_token, context);
4315 if (parent == NULL){
4316 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4317 mono_loader_unlock ();
4318 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4323 /* do this early so it's available for interfaces in setup_mono_type () */
4324 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4325 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4327 mono_class_setup_parent (class, parent);
4329 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4330 mono_class_setup_mono_type (class);
4332 if (!class->enumtype) {
4333 if (!mono_metadata_interfaces_from_typedef_full (
4334 image, type_token, &interfaces, &icount, context)){
4335 mono_loader_unlock ();
4336 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4340 class->interfaces = interfaces;
4341 class->interface_count = icount;
4342 class->interfaces_inited = 1;
4345 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4349 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4353 class->cast_class = class->element_class = class;
4355 /*g_print ("Load class %s\n", name);*/
4358 * Compute the field and method lists
4360 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4361 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4363 if (tt->rows > tidx){
4364 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4365 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4366 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4368 field_last = image->tables [MONO_TABLE_FIELD].rows;
4369 method_last = image->tables [MONO_TABLE_METHOD].rows;
4372 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4373 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4374 class->field.count = field_last - class->field.first;
4376 class->field.count = 0;
4378 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4379 class->method.count = method_last - class->method.first;
4381 class->method.count = 0;
4383 /* reserve space to store vector pointer in arrays */
4384 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4385 class->instance_size += 2 * sizeof (gpointer);
4386 g_assert (class->field.count == 0);
4389 if (class->enumtype) {
4390 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
4391 if (!enum_basetype) {
4392 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4393 mono_loader_unlock ();
4396 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
4400 * If we're a generic type definition, load the constraints.
4401 * We must do this after the class has been constructed to make certain recursive scenarios
4404 if (class->generic_container)
4405 mono_metadata_load_generic_param_constraints (
4406 image, type_token, class->generic_container);
4408 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4409 if (!strncmp (name, "Vector", 6))
4410 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");
4413 mono_loader_unlock ();
4415 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4420 /** is klass Nullable<T>? */
4422 mono_class_is_nullable (MonoClass *klass)
4424 return klass->generic_class != NULL &&
4425 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4429 /** if klass is T? return T */
4431 mono_class_get_nullable_param (MonoClass *klass)
4433 g_assert (mono_class_is_nullable (klass));
4434 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4438 * Create the `MonoClass' for an instantiation of a generic type.
4439 * We only do this if we actually need it.
4442 mono_generic_class_get_class (MonoGenericClass *gclass)
4444 MonoClass *klass, *gklass;
4446 mono_loader_lock ();
4447 if (gclass->cached_class) {
4448 mono_loader_unlock ();
4449 return gclass->cached_class;
4452 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4453 klass = gclass->cached_class;
4455 gklass = gclass->container_class;
4457 if (gklass->nested_in) {
4459 * FIXME: the nested type context should include everything the
4460 * nesting context should have, but it may also have additional
4461 * generic parameters...
4463 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
4464 mono_generic_class_get_context (gclass));
4467 klass->name = gklass->name;
4468 klass->name_space = gklass->name_space;
4470 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4472 klass->image = gklass->image;
4473 klass->flags = gklass->flags;
4474 klass->type_token = gklass->type_token;
4475 klass->field.count = gklass->field.count;
4477 klass->is_inflated = 1;
4478 klass->generic_class = gclass;
4480 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4481 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4482 klass->this_arg.byref = TRUE;
4483 klass->enumtype = gklass->enumtype;
4484 klass->valuetype = gklass->valuetype;
4486 klass->cast_class = klass->element_class = klass;
4488 if (mono_class_is_nullable (klass))
4489 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4492 * We're not interested in the nested classes of a generic instance.
4493 * We use the generic type definition to look for nested classes.
4496 if (gklass->parent) {
4497 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
4501 mono_class_setup_parent (klass, klass->parent);
4503 if (klass->enumtype) {
4504 klass->cast_class = gklass->cast_class;
4505 klass->element_class = gklass->element_class;
4508 if (gclass->is_dynamic) {
4511 mono_class_setup_supertypes (klass);
4513 if (klass->enumtype) {
4515 * For enums, gklass->fields might not been set, but instance_size etc. is
4516 * already set in mono_reflection_create_internal_class (). For non-enums,
4517 * these will be computed normally in mono_class_layout_fields ().
4519 klass->instance_size = gklass->instance_size;
4520 klass->sizes.class_size = gklass->sizes.class_size;
4521 klass->size_inited = 1;
4525 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4527 inflated_classes ++;
4528 inflated_classes_size += sizeof (MonoClass);
4530 mono_loader_unlock ();
4536 * LOCKING: Acquires the loader lock.
4539 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4541 MonoClass *klass, **ptr;
4544 mono_loader_lock ();
4546 if (param->pklass) {
4547 mono_loader_unlock ();
4548 return param->pklass;
4551 if (!image && param->owner) {
4553 MonoMethod *method = param->owner->owner.method;
4554 image = (method && method->klass) ? method->klass->image : NULL;
4556 MonoClass *klass = param->owner->owner.klass;
4557 // FIXME: 'klass' should not be null
4558 // But, monodis creates GenericContainers without associating a owner to it
4559 image = klass ? klass->image : NULL;
4564 image = mono_defaults.corlib;
4566 klass = mono_image_alloc0 (image, sizeof (MonoClass));
4568 classes_size += sizeof (MonoClass);
4571 klass->name = param->name;
4573 klass->name = mono_image_alloc0 (image, 16);
4574 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4576 klass->name_space = "";
4577 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4579 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4583 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4584 klass->parent = param->constraints [0];
4586 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4587 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4589 klass->parent = mono_defaults.object_class;
4591 if (count - pos > 0) {
4592 klass->interface_count = count - pos;
4593 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4594 for (i = pos; i < count; i++)
4595 klass->interfaces [i - pos] = param->constraints [i];
4599 image = mono_defaults.corlib;
4601 klass->image = image;
4603 klass->inited = TRUE;
4604 klass->cast_class = klass->element_class = klass;
4605 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4607 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4608 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4609 klass->this_arg.byref = TRUE;
4613 guint32 cols [MONO_GENERICPARAM_SIZE];
4614 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4617 if (is_mvar && param->owner->owner.method)
4618 i = mono_metadata_get_generic_param_row (image, param->owner->owner.method->token, &owner);
4619 else if (!is_mvar && param->owner->owner.klass)
4620 i = mono_metadata_get_generic_param_row (image, param->owner->owner.klass->type_token, &owner);
4623 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4625 if (cols [MONO_GENERICPARAM_NUMBER] == param->num) {
4626 klass->sizes.generic_param_token = i | MONO_TOKEN_GENERIC_PARAM;
4629 if (++i > tdef->rows)
4631 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4632 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4636 mono_class_setup_supertypes (klass);
4638 mono_memory_barrier ();
4640 param->pklass = klass;
4642 mono_loader_unlock ();
4644 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4650 mono_ptr_class_get (MonoType *type)
4653 MonoClass *el_class;
4657 el_class = mono_class_from_mono_type (type);
4658 image = el_class->image;
4660 mono_loader_lock ();
4662 if (!image->ptr_cache)
4663 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4665 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4666 mono_loader_unlock ();
4669 result = mono_image_alloc0 (image, sizeof (MonoClass));
4671 classes_size += sizeof (MonoClass);
4673 result->parent = NULL; /* no parent for PTR types */
4674 result->name_space = el_class->name_space;
4675 name = g_strdup_printf ("%s*", el_class->name);
4676 result->name = mono_image_strdup (image, name);
4679 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4681 result->image = el_class->image;
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 = el_class;
4687 result->blittable = TRUE;
4689 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4690 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
4691 result->this_arg.byref = TRUE;
4693 mono_class_setup_supertypes (result);
4695 g_hash_table_insert (image->ptr_cache, el_class, result);
4697 mono_loader_unlock ();
4699 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4705 mono_fnptr_class_get (MonoMethodSignature *sig)
4708 static GHashTable *ptr_hash = NULL;
4710 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4712 mono_loader_lock ();
4715 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4717 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4718 mono_loader_unlock ();
4721 result = g_new0 (MonoClass, 1);
4723 result->parent = NULL; /* no parent for PTR types */
4724 result->name_space = "System";
4725 result->name = "MonoFNPtrFakeClass";
4727 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4729 result->image = mono_defaults.corlib; /* need to fix... */
4730 result->inited = TRUE;
4731 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4732 /* Can pointers get boxed? */
4733 result->instance_size = sizeof (gpointer);
4734 result->cast_class = result->element_class = result;
4735 result->blittable = TRUE;
4737 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4738 result->this_arg.data.method = result->byval_arg.data.method = sig;
4739 result->this_arg.byref = TRUE;
4740 result->blittable = TRUE;
4742 mono_class_setup_supertypes (result);
4744 g_hash_table_insert (ptr_hash, sig, result);
4746 mono_loader_unlock ();
4748 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4754 mono_class_from_mono_type (MonoType *type)
4756 switch (type->type) {
4757 case MONO_TYPE_OBJECT:
4758 return type->data.klass? type->data.klass: mono_defaults.object_class;
4759 case MONO_TYPE_VOID:
4760 return type->data.klass? type->data.klass: mono_defaults.void_class;
4761 case MONO_TYPE_BOOLEAN:
4762 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4763 case MONO_TYPE_CHAR:
4764 return type->data.klass? type->data.klass: mono_defaults.char_class;
4766 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4768 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4770 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4772 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4774 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4776 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4778 return type->data.klass? type->data.klass: mono_defaults.int_class;
4780 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4782 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4784 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4786 return type->data.klass? type->data.klass: mono_defaults.single_class;
4788 return type->data.klass? type->data.klass: mono_defaults.double_class;
4789 case MONO_TYPE_STRING:
4790 return type->data.klass? type->data.klass: mono_defaults.string_class;
4791 case MONO_TYPE_TYPEDBYREF:
4792 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4793 case MONO_TYPE_ARRAY:
4794 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4796 return mono_ptr_class_get (type->data.type);
4797 case MONO_TYPE_FNPTR:
4798 return mono_fnptr_class_get (type->data.method);
4799 case MONO_TYPE_SZARRAY:
4800 return mono_array_class_get (type->data.klass, 1);
4801 case MONO_TYPE_CLASS:
4802 case MONO_TYPE_VALUETYPE:
4803 return type->data.klass;
4804 case MONO_TYPE_GENERICINST:
4805 return mono_generic_class_get_class (type->data.generic_class);
4807 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4808 case MONO_TYPE_MVAR:
4809 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4811 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4812 g_assert_not_reached ();
4819 * mono_type_retrieve_from_typespec
4820 * @image: context where the image is created
4821 * @type_spec: typespec token
4822 * @context: the generic context used to evaluate generic instantiations in
4825 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4827 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4830 if (context && (context->class_inst || context->method_inst)) {
4831 MonoType *inflated = inflate_generic_type (NULL, t, context);
4834 *did_inflate = TRUE;
4841 * mono_class_create_from_typespec
4842 * @image: context where the image is created
4843 * @type_spec: typespec token
4844 * @context: the generic context used to evaluate generic instantiations in
4847 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4850 gboolean inflated = FALSE;
4851 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4854 ret = mono_class_from_mono_type (t);
4856 mono_metadata_free_type (t);
4861 * mono_bounded_array_class_get:
4862 * @element_class: element class
4863 * @rank: the dimension of the array class
4864 * @bounded: whenever the array has non-zero bounds
4866 * Returns: a class object describing the array with element type @element_type and
4870 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4874 MonoClass *parent = NULL;
4875 GSList *list, *rootlist;
4878 gboolean corlib_type = FALSE;
4880 g_assert (rank <= 255);
4883 /* bounded only matters for one-dimensional arrays */
4886 image = eclass->image;
4888 mono_loader_lock ();
4890 if (!image->array_cache)
4891 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4893 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4894 for (; list; list = list->next) {
4896 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4897 mono_loader_unlock ();
4903 /* for the building corlib use System.Array from it */
4904 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4905 parent = mono_class_from_name (image, "System", "Array");
4908 parent = mono_defaults.array_class;
4909 if (!parent->inited)
4910 mono_class_init (parent);
4913 class = mono_image_alloc0 (image, sizeof (MonoClass));
4915 class->image = image;
4916 class->name_space = eclass->name_space;
4917 nsize = strlen (eclass->name);
4918 name = g_malloc (nsize + 2 + rank + 1);
4919 memcpy (name, eclass->name, nsize);
4922 memset (name + nsize + 1, ',', rank - 1);
4924 name [nsize + rank] = '*';
4925 name [nsize + rank + bounded] = ']';
4926 name [nsize + rank + bounded + 1] = 0;
4927 class->name = mono_image_strdup (image, name);
4930 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4932 classes_size += sizeof (MonoClass);
4934 class->type_token = 0;
4935 /* all arrays are marked serializable and sealed, bug #42779 */
4936 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4937 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4938 class->parent = parent;
4939 class->instance_size = mono_class_instance_size (class->parent);
4941 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
4942 if (!eclass->reflection_info || eclass->wastypebuilder) {
4943 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4944 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4946 /* element_size -1 is ok as this is not an instantitable type*/
4947 class->sizes.element_size = -1;
4949 class->sizes.element_size = mono_class_array_element_size (eclass);
4951 mono_class_setup_supertypes (class);
4953 if (eclass->generic_class)
4954 mono_class_init (eclass);
4955 if (!eclass->size_inited)
4956 mono_class_setup_fields (eclass);
4957 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4961 if (eclass->enumtype)
4962 class->cast_class = eclass->element_class;
4964 class->cast_class = eclass;
4966 class->element_class = eclass;
4968 if ((rank > 1) || bounded) {
4969 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
4970 class->byval_arg.type = MONO_TYPE_ARRAY;
4971 class->byval_arg.data.array = at;
4972 at->eklass = eclass;
4974 /* FIXME: complete.... */
4976 class->byval_arg.type = MONO_TYPE_SZARRAY;
4977 class->byval_arg.data.klass = eclass;
4979 class->this_arg = class->byval_arg;
4980 class->this_arg.byref = 1;
4985 class->generic_container = eclass->generic_container;
4987 list = g_slist_append (rootlist, class);
4988 g_hash_table_insert (image->array_cache, eclass, list);
4990 mono_loader_unlock ();
4992 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4998 * mono_array_class_get:
4999 * @element_class: element class
5000 * @rank: the dimension of the array class
5002 * Returns: a class object describing the array with element type @element_type and
5006 mono_array_class_get (MonoClass *eclass, guint32 rank)
5008 return mono_bounded_array_class_get (eclass, rank, FALSE);
5012 * mono_class_instance_size:
5015 * Returns: the size of an object instance
5018 mono_class_instance_size (MonoClass *klass)
5020 if (!klass->size_inited)
5021 mono_class_init (klass);
5023 return klass->instance_size;
5027 * mono_class_min_align:
5030 * Returns: minimm alignment requirements
5033 mono_class_min_align (MonoClass *klass)
5035 if (!klass->size_inited)
5036 mono_class_init (klass);
5038 return klass->min_align;
5042 * mono_class_value_size:
5045 * This function is used for value types, and return the
5046 * space and the alignment to store that kind of value object.
5048 * Returns: the size of a value of kind @klass
5051 mono_class_value_size (MonoClass *klass, guint32 *align)
5055 /* fixme: check disable, because we still have external revereces to
5056 * mscorlib and Dummy Objects
5058 /*g_assert (klass->valuetype);*/
5060 size = mono_class_instance_size (klass) - sizeof (MonoObject);
5063 *align = klass->min_align;
5069 * mono_class_data_size:
5072 * Returns: the size of the static class data
5075 mono_class_data_size (MonoClass *klass)
5078 mono_class_init (klass);
5080 /* in arrays, sizes.class_size is unioned with element_size
5081 * and arrays have no static fields
5085 return klass->sizes.class_size;
5089 * Auxiliary routine to mono_class_get_field
5091 * Takes a field index instead of a field token.
5093 static MonoClassField *
5094 mono_class_get_field_idx (MonoClass *class, int idx)
5096 mono_class_setup_fields_locking (class);
5099 if (class->image->uncompressed_metadata) {
5101 * class->field.first points to the FieldPtr table, while idx points into the
5102 * Field table, so we have to do a search.
5104 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
5107 for (i = 0; i < class->field.count; ++i)
5108 if (mono_field_get_name (&class->fields [i]) == name)
5109 return &class->fields [i];
5110 g_assert_not_reached ();
5112 if (class->field.count) {
5113 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
5114 return &class->fields [idx - class->field.first];
5118 class = class->parent;
5124 * mono_class_get_field:
5125 * @class: the class to lookup the field.
5126 * @field_token: the field token
5128 * Returns: A MonoClassField representing the type and offset of
5129 * the field, or a NULL value if the field does not belong to this
5133 mono_class_get_field (MonoClass *class, guint32 field_token)
5135 int idx = mono_metadata_token_index (field_token);
5137 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5139 return mono_class_get_field_idx (class, idx - 1);
5143 * mono_class_get_field_from_name:
5144 * @klass: the class to lookup the field.
5145 * @name: the field name
5147 * Search the class @klass and it's parents for a field with the name @name.
5149 * Returns: the MonoClassField pointer of the named field or NULL
5152 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5156 mono_class_setup_fields_locking (klass);
5158 for (i = 0; i < klass->field.count; ++i) {
5159 if (strcmp (name, mono_field_get_name (&klass->fields [i])) == 0)
5160 return &klass->fields [i];
5162 klass = klass->parent;
5168 * mono_class_get_field_token:
5169 * @field: the field we need the token of
5171 * Get the token of a field. Note that the tokesn is only valid for the image
5172 * the field was loaded from. Don't use this function for fields in dynamic types.
5174 * Returns: the token representing the field in the image it was loaded from.
5177 mono_class_get_field_token (MonoClassField *field)
5179 MonoClass *klass = field->parent;
5182 mono_class_setup_fields_locking (klass);
5184 for (i = 0; i < klass->field.count; ++i) {
5185 if (&klass->fields [i] == field) {
5186 int idx = klass->field.first + i + 1;
5188 if (klass->image->uncompressed_metadata)
5189 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5190 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5193 klass = klass->parent;
5196 g_assert_not_reached ();
5201 mono_field_get_index (MonoClassField *field)
5203 int index = field - field->parent->fields;
5205 g_assert (index >= 0 && index < field->parent->field.count);
5211 * mono_class_get_field_default_value:
5213 * Return the default value of the field as a pointer into the metadata blob.
5216 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5219 guint32 constant_cols [MONO_CONSTANT_SIZE];
5221 MonoClass *klass = field->parent;
5223 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5225 if (!klass->ext || !klass->ext->field_def_values) {
5226 mono_loader_lock ();
5227 mono_class_alloc_ext (klass);
5228 if (!klass->ext->field_def_values)
5229 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5230 mono_loader_unlock ();
5233 field_index = mono_field_get_index (field);
5235 if (!klass->ext->field_def_values [field_index].data) {
5236 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5238 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5240 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5241 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5242 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5245 *def_type = klass->ext->field_def_values [field_index].def_type;
5246 return klass->ext->field_def_values [field_index].data;
5250 mono_class_get_event_token (MonoEvent *event)
5252 MonoClass *klass = event->parent;
5257 for (i = 0; i < klass->ext->event.count; ++i) {
5258 if (&klass->ext->events [i] == event)
5259 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
5262 klass = klass->parent;
5265 g_assert_not_reached ();
5270 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5274 gpointer iter = NULL;
5275 while ((p = mono_class_get_properties (klass, &iter))) {
5276 if (! strcmp (name, p->name))
5279 klass = klass->parent;
5285 mono_class_get_property_token (MonoProperty *prop)
5287 MonoClass *klass = prop->parent;
5291 gpointer iter = NULL;
5292 while ((p = mono_class_get_properties (klass, &iter))) {
5293 if (&klass->ext->properties [i] == prop)
5294 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
5298 klass = klass->parent;
5301 g_assert_not_reached ();
5306 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5308 const char *name, *nspace;
5310 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5312 switch (type_token & 0xff000000){
5313 case MONO_TOKEN_TYPE_DEF: {
5314 guint32 cols [MONO_TYPEDEF_SIZE];
5315 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5316 guint tidx = mono_metadata_token_index (type_token);
5318 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5319 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5320 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5321 if (strlen (nspace) == 0)
5322 return g_strdup_printf ("%s", name);
5324 return g_strdup_printf ("%s.%s", nspace, name);
5327 case MONO_TOKEN_TYPE_REF: {
5328 guint32 cols [MONO_TYPEREF_SIZE];
5329 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5331 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5332 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5333 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5334 if (strlen (nspace) == 0)
5335 return g_strdup_printf ("%s", name);
5337 return g_strdup_printf ("%s.%s", nspace, name);
5340 case MONO_TOKEN_TYPE_SPEC:
5341 return g_strdup_printf ("Typespec 0x%08x", type_token);
5343 g_assert_not_reached ();
5350 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5353 return g_strdup_printf ("DynamicAssembly %s", image->name);
5355 switch (type_token & 0xff000000){
5356 case MONO_TOKEN_TYPE_DEF:
5357 return mono_stringify_assembly_name (&image->assembly->aname);
5359 case MONO_TOKEN_TYPE_REF: {
5360 MonoAssemblyName aname;
5361 guint32 cols [MONO_TYPEREF_SIZE];
5362 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5365 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5367 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5368 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5369 case MONO_RESOLTION_SCOPE_MODULE:
5371 return g_strdup ("");
5372 case MONO_RESOLTION_SCOPE_MODULEREF:
5374 return g_strdup ("");
5375 case MONO_RESOLTION_SCOPE_TYPEREF:
5377 return g_strdup ("");
5378 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5379 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5380 return mono_stringify_assembly_name (&aname);
5382 g_assert_not_reached ();
5386 case MONO_TOKEN_TYPE_SPEC:
5388 return g_strdup ("");
5390 g_assert_not_reached ();
5397 * mono_class_get_full:
5398 * @image: the image where the class resides
5399 * @type_token: the token for the class
5400 * @context: the generic context used to evaluate generic instantiations in
5402 * Returns: the MonoClass that represents @type_token in @image
5405 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5407 MonoClass *class = NULL;
5409 if (image->dynamic) {
5410 int table = mono_metadata_token_table (type_token);
5412 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5413 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5416 return mono_lookup_dynamic_token (image, type_token, context);
5419 switch (type_token & 0xff000000){
5420 case MONO_TOKEN_TYPE_DEF:
5421 class = mono_class_create_from_typedef (image, type_token);
5423 case MONO_TOKEN_TYPE_REF:
5424 class = mono_class_from_typeref (image, type_token);
5426 case MONO_TOKEN_TYPE_SPEC:
5427 class = mono_class_create_from_typespec (image, type_token, context);
5430 g_warning ("unknown token type %x", type_token & 0xff000000);
5431 g_assert_not_reached ();
5435 char *name = mono_class_name_from_token (image, type_token);
5436 char *assembly = mono_assembly_name_from_token (image, type_token);
5437 mono_loader_set_error_type_load (name, assembly);
5445 * mono_type_get_full:
5446 * @image: the image where the type resides
5447 * @type_token: the token for the type
5448 * @context: the generic context used to evaluate generic instantiations in
5450 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5452 * Returns: the MonoType that represents @type_token in @image
5455 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5457 MonoType *type = NULL;
5458 gboolean inflated = FALSE;
5460 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5462 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5464 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5465 MonoClass *class = mono_class_get_full (image, type_token, context);
5466 return class ? mono_class_get_type (class) : NULL;
5469 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5472 char *name = mono_class_name_from_token (image, type_token);
5473 char *assembly = mono_assembly_name_from_token (image, type_token);
5475 mono_metadata_free_type (type);
5476 mono_loader_set_error_type_load (name, assembly);
5480 MonoType *tmp = type;
5481 type = mono_class_get_type (mono_class_from_mono_type (type));
5482 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5483 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5484 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5486 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5488 if (type->type != tmp->type)
5491 mono_metadata_free_type (tmp);
5498 mono_class_get (MonoImage *image, guint32 type_token)
5500 return mono_class_get_full (image, type_token, NULL);
5504 * mono_image_init_name_cache:
5506 * Initializes the class name cache stored in image->name_cache.
5508 * LOCKING: Acquires the loader lock.
5511 mono_image_init_name_cache (MonoImage *image)
5513 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5514 guint32 cols [MONO_TYPEDEF_SIZE];
5517 guint32 i, visib, nspace_index;
5518 GHashTable *name_cache2, *nspace_table;
5520 mono_loader_lock ();
5522 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5524 if (image->dynamic) {
5525 mono_loader_unlock ();
5529 /* Temporary hash table to avoid lookups in the nspace_table */
5530 name_cache2 = g_hash_table_new (NULL, NULL);
5532 for (i = 1; i <= t->rows; ++i) {
5533 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5534 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5536 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5537 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5539 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5541 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5542 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5544 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5545 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5546 if (!nspace_table) {
5547 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5548 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5549 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5552 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5555 /* Load type names from EXPORTEDTYPES table */
5557 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5558 guint32 cols [MONO_EXP_TYPE_SIZE];
5561 for (i = 0; i < t->rows; ++i) {
5562 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5563 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5564 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5566 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5567 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5568 if (!nspace_table) {
5569 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5570 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5571 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5574 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5578 g_hash_table_destroy (name_cache2);
5580 mono_loader_unlock ();
5584 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5585 const char *name, guint32 index)
5587 GHashTable *nspace_table;
5588 GHashTable *name_cache;
5590 mono_loader_lock ();
5592 if (!image->name_cache)
5593 mono_image_init_name_cache (image);
5595 name_cache = image->name_cache;
5596 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5597 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5598 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5600 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5602 mono_loader_unlock ();
5611 find_nocase (gpointer key, gpointer value, gpointer user_data)
5613 char *name = (char*)key;
5614 FindUserData *data = (FindUserData*)user_data;
5616 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5617 data->value = value;
5621 * mono_class_from_name_case:
5622 * @image: The MonoImage where the type is looked up in
5623 * @name_space: the type namespace
5624 * @name: the type short name.
5626 * Obtains a MonoClass with a given namespace and a given name which
5627 * is located in the given MonoImage. The namespace and name
5628 * lookups are case insensitive.
5631 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5633 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5634 guint32 cols [MONO_TYPEDEF_SIZE];
5639 if (image->dynamic) {
5641 FindUserData user_data;
5643 mono_loader_lock ();
5645 if (!image->name_cache)
5646 mono_image_init_name_cache (image);
5648 user_data.key = name_space;
5649 user_data.value = NULL;
5650 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5652 if (user_data.value) {
5653 GHashTable *nspace_table = (GHashTable*)user_data.value;
5655 user_data.key = name;
5656 user_data.value = NULL;
5658 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5660 if (user_data.value)
5661 token = GPOINTER_TO_UINT (user_data.value);
5664 mono_loader_unlock ();
5667 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5673 /* add a cache if needed */
5674 for (i = 1; i <= t->rows; ++i) {
5675 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5676 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5678 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5679 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5681 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5683 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5684 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5685 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5686 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5692 return_nested_in (MonoClass *class, char *nested)
5695 char *s = strchr (nested, '/');
5696 gpointer iter = NULL;
5703 while ((found = mono_class_get_nested_types (class, &iter))) {
5704 if (strcmp (found->name, nested) == 0) {
5706 return return_nested_in (found, s);
5714 search_modules (MonoImage *image, const char *name_space, const char *name)
5716 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5717 MonoImage *file_image;
5722 * The EXPORTEDTYPES table only contains public types, so have to search the
5724 * Note: image->modules contains the contents of the MODULEREF table, while
5725 * the real module list is in the FILE table.
5727 for (i = 0; i < file_table->rows; i++) {
5728 guint32 cols [MONO_FILE_SIZE];
5729 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5730 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5733 file_image = mono_image_load_file_for_image (image, i + 1);
5735 class = mono_class_from_name (file_image, name_space, name);
5745 * mono_class_from_name:
5746 * @image: The MonoImage where the type is looked up in
5747 * @name_space: the type namespace
5748 * @name: the type short name.
5750 * Obtains a MonoClass with a given namespace and a given name which
5751 * is located in the given MonoImage.
5754 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5756 GHashTable *nspace_table;
5757 MonoImage *loaded_image;
5764 if ((nested = strchr (name, '/'))) {
5765 int pos = nested - name;
5766 int len = strlen (name);
5769 memcpy (buf, name, len + 1);
5771 nested = buf + pos + 1;
5775 if (get_class_from_name) {
5776 gboolean res = get_class_from_name (image, name_space, name, &class);
5779 class = search_modules (image, name_space, name);
5781 return class ? return_nested_in (class, nested) : NULL;
5787 mono_loader_lock ();
5789 if (!image->name_cache)
5790 mono_image_init_name_cache (image);
5792 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5795 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5797 mono_loader_unlock ();
5799 if (!token && image->dynamic && image->modules) {
5800 /* Search modules as well */
5801 for (i = 0; i < image->module_count; ++i) {
5802 MonoImage *module = image->modules [i];
5804 class = mono_class_from_name (module, name_space, name);
5811 class = search_modules (image, name_space, name);
5819 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5820 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5821 guint32 cols [MONO_EXP_TYPE_SIZE];
5824 idx = mono_metadata_token_index (token);
5826 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5828 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5829 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5830 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5833 class = mono_class_from_name (loaded_image, name_space, name);
5835 return return_nested_in (class, nested);
5837 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5838 MonoAssembly **references = image->references;
5839 guint32 assembly_idx;
5841 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
5843 if (!references [assembly_idx - 1])
5844 mono_assembly_load_reference (image, assembly_idx - 1);
5845 g_assert (references == image->references);
5846 g_assert (references [assembly_idx - 1]);
5847 if (references [assembly_idx - 1] == (gpointer)-1)
5850 /* FIXME: Cycle detection */
5851 return mono_class_from_name (references [assembly_idx - 1]->image, name_space, name);
5853 g_error ("not yet implemented");
5857 token = MONO_TOKEN_TYPE_DEF | token;
5859 class = mono_class_get (image, token);
5861 return return_nested_in (class, nested);
5866 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5867 gboolean check_interfaces)
5869 g_assert (klassc->idepth > 0);
5870 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5871 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5873 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5876 for (i = 0; i < klass->interface_count; i ++) {
5877 MonoClass *ic = klass->interfaces [i];
5882 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5887 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5890 if (klassc == mono_defaults.object_class)
5897 mono_class_has_variant_generic_params (MonoClass *klass)
5900 MonoGenericContainer *container;
5902 if (!klass->generic_class)
5905 container = klass->generic_class->container_class->generic_container;
5907 for (i = 0; i < container->type_argc; ++i)
5908 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5915 * mono_class_is_assignable_from:
5916 * @klass: the class to be assigned to
5917 * @oklass: the source class
5919 * Return: true if an instance of object oklass can be assigned to an
5920 * instance of object @klass
5923 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5926 mono_class_init (klass);
5928 if (!oklass->inited)
5929 mono_class_init (oklass);
5931 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5932 return klass == oklass;
5934 if (MONO_CLASS_IS_INTERFACE (klass)) {
5935 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5938 /* interface_offsets might not be set for dynamic classes */
5939 if (oklass->reflection_info && !oklass->interface_bitmap)
5941 * oklass might be a generic type parameter but they have
5942 * interface_offsets set.
5944 return mono_reflection_call_is_assignable_to (oklass, klass);
5945 if (!oklass->interface_bitmap)
5946 /* Happens with generic instances of not-yet created dynamic types */
5948 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5951 if (mono_class_has_variant_generic_params (klass)) {
5952 if (oklass->generic_class) {
5954 gboolean match = FALSE;
5955 MonoClass *container_class1 = klass->generic_class->container_class;
5956 MonoClass *container_class2 = oklass->generic_class->container_class;
5959 * Check whenever the generic definition of oklass implements the
5960 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5961 * here since the relevant tables are not set up.
5963 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5964 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)))
5968 MonoGenericContainer *container;
5970 container = klass->generic_class->container_class->generic_container;
5973 for (i = 0; i < container->type_argc; ++i) {
5974 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5975 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5977 if (param1_class->valuetype != param2_class->valuetype) {
5982 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5983 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5985 if (param1_class != param2_class) {
5986 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5988 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
6002 } else if (klass->rank) {
6003 MonoClass *eclass, *eoclass;
6005 if (oklass->rank != klass->rank)
6008 /* vectors vs. one dimensional arrays */
6009 if (oklass->byval_arg.type != klass->byval_arg.type)
6012 eclass = klass->cast_class;
6013 eoclass = oklass->cast_class;
6016 * a is b does not imply a[] is b[] when a is a valuetype, and
6017 * b is a reference type.
6020 if (eoclass->valuetype) {
6021 if ((eclass == mono_defaults.enum_class) ||
6022 (eclass == mono_defaults.enum_class->parent) ||
6023 (eclass == mono_defaults.object_class))
6027 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6028 } else if (mono_class_is_nullable (klass)) {
6029 if (mono_class_is_nullable (oklass))
6030 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6032 return mono_class_is_assignable_from (klass->cast_class, oklass);
6033 } else if (klass == mono_defaults.object_class)
6036 return mono_class_has_parent (oklass, klass);
6040 * mono_class_get_cctor:
6041 * @klass: A MonoClass pointer
6043 * Returns: the static constructor of @klass if it exists, NULL otherwise.
6046 mono_class_get_cctor (MonoClass *klass)
6048 MonoCachedClassInfo cached_info;
6050 if (!klass->has_cctor)
6053 if (mono_class_get_cached_class_info (klass, &cached_info))
6054 return mono_get_method (klass->image, cached_info.cctor_token, klass);
6056 if (klass->generic_class && !klass->methods)
6057 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
6059 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
6063 * mono_class_get_finalizer:
6064 * @klass: The MonoClass pointer
6066 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
6069 mono_class_get_finalizer (MonoClass *klass)
6071 MonoCachedClassInfo cached_info;
6074 mono_class_init (klass);
6075 if (!klass->has_finalize)
6078 if (mono_class_get_cached_class_info (klass, &cached_info))
6079 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
6081 mono_class_setup_vtable (klass);
6082 return klass->vtable [finalize_slot];
6087 * mono_class_needs_cctor_run:
6088 * @klass: the MonoClass pointer
6089 * @caller: a MonoMethod describing the caller
6091 * Determines whenever the class has a static constructor and whenever it
6092 * needs to be called when executing CALLER.
6095 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
6099 method = mono_class_get_cctor (klass);
6101 return (method == caller) ? FALSE : TRUE;
6107 * mono_class_array_element_size:
6110 * Returns: the number of bytes an element of type @klass
6111 * uses when stored into an array.
6114 mono_class_array_element_size (MonoClass *klass)
6116 MonoType *type = &klass->byval_arg;
6119 switch (type->type) {
6122 case MONO_TYPE_BOOLEAN:
6126 case MONO_TYPE_CHAR:
6135 case MONO_TYPE_CLASS:
6136 case MONO_TYPE_STRING:
6137 case MONO_TYPE_OBJECT:
6138 case MONO_TYPE_SZARRAY:
6139 case MONO_TYPE_ARRAY:
6141 case MONO_TYPE_MVAR:
6142 return sizeof (gpointer);
6147 case MONO_TYPE_VALUETYPE:
6148 if (type->data.klass->enumtype) {
6149 type = mono_class_enum_basetype (type->data.klass);
6150 klass = klass->element_class;
6153 return mono_class_instance_size (klass) - sizeof (MonoObject);
6154 case MONO_TYPE_GENERICINST:
6155 type = &type->data.generic_class->container_class->byval_arg;
6158 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6164 * mono_array_element_size:
6165 * @ac: pointer to a #MonoArrayClass
6167 * Returns: the size of single array element.
6170 mono_array_element_size (MonoClass *ac)
6172 g_assert (ac->rank);
6173 return ac->sizes.element_size;
6177 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6178 MonoGenericContext *context)
6180 if (image->dynamic) {
6181 MonoClass *tmp_handle_class;
6182 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6184 g_assert (tmp_handle_class);
6186 *handle_class = tmp_handle_class;
6188 if (tmp_handle_class == mono_defaults.typehandle_class)
6189 return &((MonoClass*)obj)->byval_arg;
6194 switch (token & 0xff000000) {
6195 case MONO_TOKEN_TYPE_DEF:
6196 case MONO_TOKEN_TYPE_REF:
6197 case MONO_TOKEN_TYPE_SPEC: {
6200 *handle_class = mono_defaults.typehandle_class;
6201 type = mono_type_get_full (image, token, context);
6204 mono_class_init (mono_class_from_mono_type (type));
6205 /* We return a MonoType* as handle */
6208 case MONO_TOKEN_FIELD_DEF: {
6210 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6212 *handle_class = mono_defaults.fieldhandle_class;
6213 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6216 mono_class_init (class);
6217 return mono_class_get_field (class, token);
6219 case MONO_TOKEN_METHOD_DEF:
6220 case MONO_TOKEN_METHOD_SPEC: {
6222 meth = mono_get_method_full (image, token, NULL, context);
6224 *handle_class = mono_defaults.methodhandle_class;
6227 case MONO_TOKEN_MEMBER_REF: {
6228 guint32 cols [MONO_MEMBERREF_SIZE];
6230 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6231 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6232 mono_metadata_decode_blob_size (sig, &sig);
6233 if (*sig == 0x6) { /* it's a field */
6235 MonoClassField *field;
6236 field = mono_field_from_token (image, token, &klass, context);
6238 *handle_class = mono_defaults.fieldhandle_class;
6242 meth = mono_get_method_full (image, token, NULL, context);
6244 *handle_class = mono_defaults.methodhandle_class;
6249 g_warning ("Unknown token 0x%08x in ldtoken", token);
6256 * This function might need to call runtime functions so it can't be part
6257 * of the metadata library.
6259 static MonoLookupDynamicToken lookup_dynamic = NULL;
6262 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6264 lookup_dynamic = func;
6268 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6270 MonoClass *handle_class;
6272 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6276 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6278 return lookup_dynamic (image, token, valid_token, handle_class, context);
6281 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6284 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6286 get_cached_class_info = func;
6290 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6292 if (!get_cached_class_info)
6295 return get_cached_class_info (klass, res);
6299 mono_install_get_class_from_name (MonoGetClassFromName func)
6301 get_class_from_name = func;
6305 mono_class_get_image (MonoClass *klass)
6307 return klass->image;
6311 * mono_class_get_element_class:
6312 * @klass: the MonoClass to act on
6314 * Returns: the element class of an array or an enumeration.
6317 mono_class_get_element_class (MonoClass *klass)
6319 return klass->element_class;
6323 * mono_class_is_valuetype:
6324 * @klass: the MonoClass to act on
6326 * Returns: true if the MonoClass represents a ValueType.
6329 mono_class_is_valuetype (MonoClass *klass)
6331 return klass->valuetype;
6335 * mono_class_is_enum:
6336 * @klass: the MonoClass to act on
6338 * Returns: true if the MonoClass represents an enumeration.
6341 mono_class_is_enum (MonoClass *klass)
6343 return klass->enumtype;
6347 * mono_class_enum_basetype:
6348 * @klass: the MonoClass to act on
6350 * Returns: the underlying type representation for an enumeration.
6353 mono_class_enum_basetype (MonoClass *klass)
6355 if (klass->element_class == klass)
6359 return &klass->element_class->byval_arg;
6363 * mono_class_get_parent
6364 * @klass: the MonoClass to act on
6366 * Returns: the parent class for this class.
6369 mono_class_get_parent (MonoClass *klass)
6371 return klass->parent;
6375 * mono_class_get_nesting_type;
6376 * @klass: the MonoClass to act on
6378 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6381 mono_class_get_nesting_type (MonoClass *klass)
6383 return klass->nested_in;
6387 * mono_class_get_rank:
6388 * @klass: the MonoClass to act on
6390 * Returns: the rank for the array (the number of dimensions).
6393 mono_class_get_rank (MonoClass *klass)
6399 * mono_class_get_flags:
6400 * @klass: the MonoClass to act on
6402 * The type flags from the TypeDef table from the metadata.
6403 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6406 * Returns: the flags from the TypeDef table.
6409 mono_class_get_flags (MonoClass *klass)
6411 return klass->flags;
6415 * mono_class_get_name
6416 * @klass: the MonoClass to act on
6418 * Returns: the name of the class.
6421 mono_class_get_name (MonoClass *klass)
6427 * mono_class_get_namespace:
6428 * @klass: the MonoClass to act on
6430 * Returns: the namespace of the class.
6433 mono_class_get_namespace (MonoClass *klass)
6435 return klass->name_space;
6439 * mono_class_get_type:
6440 * @klass: the MonoClass to act on
6442 * This method returns the internal Type representation for the class.
6444 * Returns: the MonoType from the class.
6447 mono_class_get_type (MonoClass *klass)
6449 return &klass->byval_arg;
6453 * mono_class_get_type_token
6454 * @klass: the MonoClass to act on
6456 * This method returns type token for the class.
6458 * Returns: the type token for the class.
6461 mono_class_get_type_token (MonoClass *klass)
6463 return klass->type_token;
6467 * mono_class_get_byref_type:
6468 * @klass: the MonoClass to act on
6473 mono_class_get_byref_type (MonoClass *klass)
6475 return &klass->this_arg;
6479 * mono_class_num_fields:
6480 * @klass: the MonoClass to act on
6482 * Returns: the number of static and instance fields in the class.
6485 mono_class_num_fields (MonoClass *klass)
6487 return klass->field.count;
6491 * mono_class_num_methods:
6492 * @klass: the MonoClass to act on
6494 * Returns: the number of methods in the class.
6497 mono_class_num_methods (MonoClass *klass)
6499 return klass->method.count;
6503 * mono_class_num_properties
6504 * @klass: the MonoClass to act on
6506 * Returns: the number of properties in the class.
6509 mono_class_num_properties (MonoClass *klass)
6511 mono_class_setup_properties (klass);
6513 return klass->ext->property.count;
6517 * mono_class_num_events:
6518 * @klass: the MonoClass to act on
6520 * Returns: the number of events in the class.
6523 mono_class_num_events (MonoClass *klass)
6525 mono_class_setup_events (klass);
6527 return klass->ext->event.count;
6531 * mono_class_get_fields:
6532 * @klass: the MonoClass to act on
6534 * This routine is an iterator routine for retrieving the fields in a class.
6536 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6537 * iterate over all of the elements. When no more values are
6538 * available, the return value is NULL.
6540 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6543 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6545 MonoClassField* field;
6549 mono_class_setup_fields_locking (klass);
6550 if (klass->exception_type)
6552 /* start from the first */
6553 if (klass->field.count) {
6554 return *iter = &klass->fields [0];
6562 if (field < &klass->fields [klass->field.count]) {
6563 return *iter = field;
6569 * mono_class_get_methods
6570 * @klass: the MonoClass to act on
6572 * This routine is an iterator routine for retrieving the fields in a class.
6574 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6575 * iterate over all of the elements. When no more values are
6576 * available, the return value is NULL.
6578 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6581 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6583 MonoMethod** method;
6587 mono_class_init (klass);
6589 mono_class_setup_methods (klass);
6590 /* start from the first */
6591 if (klass->method.count) {
6592 *iter = &klass->methods [0];
6593 return klass->methods [0];
6601 if (method < &klass->methods [klass->method.count]) {
6609 * mono_class_get_virtual_methods:
6611 * Iterate over the virtual methods of KLASS.
6613 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6616 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6618 MonoMethod** method;
6621 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6623 mono_class_setup_methods (klass);
6624 /* start from the first */
6625 method = &klass->methods [0];
6630 while (method < &klass->methods [klass->method.count]) {
6631 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6635 if (method < &klass->methods [klass->method.count]) {
6642 /* Search directly in metadata to avoid calling setup_methods () */
6643 MonoMethod *res = NULL;
6649 start_index = GPOINTER_TO_UINT (*iter);
6652 for (i = start_index; i < klass->method.count; ++i) {
6653 guint32 cols [MONO_METHOD_SIZE];
6655 /* class->method.first points into the methodptr table */
6656 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6658 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6662 if (i < klass->method.count) {
6663 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6664 /* Add 1 here so the if (*iter) check fails */
6665 *iter = GUINT_TO_POINTER (i + 1);
6674 * mono_class_get_properties:
6675 * @klass: the MonoClass to act on
6677 * This routine is an iterator routine for retrieving the properties in a class.
6679 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6680 * iterate over all of the elements. When no more values are
6681 * available, the return value is NULL.
6683 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6686 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6688 MonoProperty* property;
6692 mono_class_init (klass);
6694 mono_class_setup_properties (klass);
6695 /* start from the first */
6696 if (klass->ext->property.count) {
6697 return *iter = &klass->ext->properties [0];
6705 if (property < &klass->ext->properties [klass->ext->property.count]) {
6706 return *iter = property;
6712 * mono_class_get_events:
6713 * @klass: the MonoClass to act on
6715 * This routine is an iterator routine for retrieving the properties in a class.
6717 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6718 * iterate over all of the elements. When no more values are
6719 * available, the return value is NULL.
6721 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6724 mono_class_get_events (MonoClass* klass, gpointer *iter)
6730 mono_class_init (klass);
6732 mono_class_setup_events (klass);
6733 /* start from the first */
6734 if (klass->ext->event.count) {
6735 return *iter = &klass->ext->events [0];
6743 if (event < &klass->ext->events [klass->ext->event.count]) {
6744 return *iter = event;
6750 * mono_class_get_interfaces
6751 * @klass: the MonoClass to act on
6753 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6755 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6756 * iterate over all of the elements. When no more values are
6757 * available, the return value is NULL.
6759 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6762 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6769 mono_class_init (klass);
6770 if (!klass->interfaces_inited)
6771 mono_class_setup_interfaces (klass);
6772 /* start from the first */
6773 if (klass->interface_count) {
6774 *iter = &klass->interfaces [0];
6775 return klass->interfaces [0];
6783 if (iface < &klass->interfaces [klass->interface_count]) {
6791 * mono_class_get_nested_types
6792 * @klass: the MonoClass to act on
6794 * This routine is an iterator routine for retrieving the nested types of a class.
6795 * This works only if @klass is non-generic, or a generic type definition.
6797 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6798 * iterate over all of the elements. When no more values are
6799 * available, the return value is NULL.
6801 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6804 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6812 mono_class_init (klass);
6813 if (!klass->nested_classes_inited) {
6814 if (!klass->type_token)
6815 klass->nested_classes_inited = TRUE;
6816 mono_loader_lock ();
6817 if (!klass->nested_classes_inited) {
6818 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
6821 guint32 cols [MONO_NESTED_CLASS_SIZE];
6822 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
6823 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
6824 mono_class_alloc_ext (klass);
6825 klass->ext->nested_classes = g_list_prepend_mempool (klass->ext->nested_classes, klass->image->mempool, nclass);
6827 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
6830 mono_memory_barrier ();
6831 klass->nested_classes_inited = TRUE;
6832 mono_loader_unlock ();
6836 /* start from the first */
6837 if (klass->ext && klass->ext->nested_classes) {
6838 *iter = klass->ext->nested_classes;
6839 return klass->ext->nested_classes->data;
6841 /* no nested types */
6855 * mono_field_get_name:
6856 * @field: the MonoClassField to act on
6858 * Returns: the name of the field.
6861 mono_field_get_name (MonoClassField *field)
6867 * mono_field_get_type:
6868 * @field: the MonoClassField to act on
6870 * Returns: MonoType of the field.
6873 mono_field_get_type (MonoClassField *field)
6879 * mono_field_get_type:
6880 * @field: the MonoClassField to act on
6882 * Returns: MonoClass where the field was defined.
6885 mono_field_get_parent (MonoClassField *field)
6887 return field->parent;
6891 * mono_field_get_flags;
6892 * @field: the MonoClassField to act on
6894 * The metadata flags for a field are encoded using the
6895 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6897 * Returns: the flags for the field.
6900 mono_field_get_flags (MonoClassField *field)
6902 return field->type->attrs;
6906 * mono_field_get_offset;
6907 * @field: the MonoClassField to act on
6909 * Returns: the field offset.
6912 mono_field_get_offset (MonoClassField *field)
6914 return field->offset;
6918 mono_field_get_rva (MonoClassField *field)
6922 MonoClass *klass = field->parent;
6924 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
6926 if (!klass->ext || !klass->ext->field_def_values) {
6927 mono_loader_lock ();
6928 mono_class_alloc_ext (klass);
6929 if (!klass->ext->field_def_values)
6930 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
6931 mono_loader_unlock ();
6934 field_index = mono_field_get_index (field);
6936 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
6937 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
6939 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
6940 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
6943 return klass->ext->field_def_values [field_index].data;
6947 * mono_field_get_data;
6948 * @field: the MonoClassField to act on
6950 * Returns: pointer to the metadata constant value or to the field
6951 * data if it has an RVA flag.
6954 mono_field_get_data (MonoClassField *field)
6956 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
6957 MonoTypeEnum def_type;
6959 return mono_class_get_field_default_value (field, &def_type);
6960 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
6961 return mono_field_get_rva (field);
6968 * mono_property_get_name:
6969 * @prop: the MonoProperty to act on
6971 * Returns: the name of the property
6974 mono_property_get_name (MonoProperty *prop)
6980 * mono_property_get_set_method
6981 * @prop: the MonoProperty to act on.
6983 * Returns: the setter method of the property (A MonoMethod)
6986 mono_property_get_set_method (MonoProperty *prop)
6992 * mono_property_get_get_method
6993 * @prop: the MonoProperty to act on.
6995 * Returns: the setter method of the property (A MonoMethod)
6998 mono_property_get_get_method (MonoProperty *prop)
7004 * mono_property_get_parent:
7005 * @prop: the MonoProperty to act on.
7007 * Returns: the MonoClass where the property was defined.
7010 mono_property_get_parent (MonoProperty *prop)
7012 return prop->parent;
7016 * mono_property_get_flags:
7017 * @prop: the MonoProperty to act on.
7019 * The metadata flags for a property are encoded using the
7020 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
7022 * Returns: the flags for the property.
7025 mono_property_get_flags (MonoProperty *prop)
7031 * mono_event_get_name:
7032 * @event: the MonoEvent to act on
7034 * Returns: the name of the event.
7037 mono_event_get_name (MonoEvent *event)
7043 * mono_event_get_add_method:
7044 * @event: The MonoEvent to act on.
7046 * Returns: the @add' method for the event (a MonoMethod).
7049 mono_event_get_add_method (MonoEvent *event)
7055 * mono_event_get_remove_method:
7056 * @event: The MonoEvent to act on.
7058 * Returns: the @remove method for the event (a MonoMethod).
7061 mono_event_get_remove_method (MonoEvent *event)
7063 return event->remove;
7067 * mono_event_get_raise_method:
7068 * @event: The MonoEvent to act on.
7070 * Returns: the @raise method for the event (a MonoMethod).
7073 mono_event_get_raise_method (MonoEvent *event)
7075 return event->raise;
7079 * mono_event_get_parent:
7080 * @event: the MonoEvent to act on.
7082 * Returns: the MonoClass where the event is defined.
7085 mono_event_get_parent (MonoEvent *event)
7087 return event->parent;
7091 * mono_event_get_flags
7092 * @event: the MonoEvent to act on.
7094 * The metadata flags for an event are encoded using the
7095 * EVENT_* constants. See the tabledefs.h file for details.
7097 * Returns: the flags for the event.
7100 mono_event_get_flags (MonoEvent *event)
7102 return event->attrs;
7106 * mono_class_get_method_from_name:
7107 * @klass: where to look for the method
7108 * @name_space: name of the method
7109 * @param_count: number of parameters. -1 for any number.
7111 * Obtains a MonoMethod with a given name and number of parameters.
7112 * It only works if there are no multiple signatures for any given method name.
7115 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
7117 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
7121 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
7123 MonoMethod *res = NULL;
7126 /* Search directly in the metadata to avoid calling setup_methods () */
7127 for (i = 0; i < klass->method.count; ++i) {
7128 guint32 cols [MONO_METHOD_SIZE];
7131 /* class->method.first points into the methodptr table */
7132 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
7134 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
7135 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7136 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
7147 * mono_class_get_method_from_name_flags:
7148 * @klass: where to look for the method
7149 * @name_space: name of the method
7150 * @param_count: number of parameters. -1 for any number.
7151 * @flags: flags which must be set in the method
7153 * Obtains a MonoMethod with a given name and number of parameters.
7154 * It only works if there are no multiple signatures for any given method name.
7157 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
7159 MonoMethod *res = NULL;
7162 mono_class_init (klass);
7164 if (klass->generic_class && !klass->methods) {
7165 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
7167 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
7171 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
7172 mono_class_setup_methods (klass);
7173 for (i = 0; i < klass->method.count; ++i) {
7174 MonoMethod *method = klass->methods [i];
7176 if (method->name[0] == name [0] &&
7177 !strcmp (name, method->name) &&
7178 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
7179 ((method->flags & flags) == flags)) {
7186 res = find_method_in_metadata (klass, name, param_count, flags);
7193 * mono_class_set_failure:
7194 * @klass: class in which the failure was detected
7195 * @ex_type: the kind of exception/error to be thrown (later)
7196 * @ex_data: exception data (specific to each type of exception/error)
7198 * Keep a detected failure informations in the class for later processing.
7199 * Note that only the first failure is kept.
7201 * LOCKING: Acquires the loader lock.
7204 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
7206 if (klass->exception_type)
7209 mono_loader_lock ();
7210 klass->exception_type = ex_type;
7212 mono_property_hash_insert (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
7213 mono_loader_unlock ();
7219 * mono_class_get_exception_data:
7221 * Return the exception_data property of KLASS.
7223 * LOCKING: Acquires the loader lock.
7226 mono_class_get_exception_data (MonoClass *klass)
7230 mono_loader_lock ();
7231 res = mono_property_hash_lookup (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
7232 mono_loader_unlock ();
7237 * mono_classes_init:
7239 * Initialize the resources used by this module.
7242 mono_classes_init (void)
7244 mono_counters_register ("Inflated methods size",
7245 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
7246 mono_counters_register ("Inflated classes",
7247 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
7248 mono_counters_register ("Inflated classes size",
7249 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
7250 mono_counters_register ("MonoClass size",
7251 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
7252 mono_counters_register ("MonoClassExt size",
7253 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
7257 * mono_classes_cleanup:
7259 * Free the resources used by this module.
7262 mono_classes_cleanup (void)
7264 if (global_interface_bitset)
7265 mono_bitset_free (global_interface_bitset);
7269 * mono_class_get_exception_for_failure:
7270 * @klass: class in which the failure was detected
7272 * Return a constructed MonoException than the caller can then throw
7273 * using mono_raise_exception - or NULL if no failure is present (or
7274 * doesn't result in an exception).
7277 mono_class_get_exception_for_failure (MonoClass *klass)
7279 gpointer exception_data = mono_class_get_exception_data (klass);
7281 switch (klass->exception_type) {
7282 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7283 MonoDomain *domain = mono_domain_get ();
7284 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7285 MonoMethod *method = exception_data;
7286 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7287 MonoObject *exc = NULL;
7291 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7292 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7293 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7295 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7296 return (MonoException*) exc;
7298 case MONO_EXCEPTION_TYPE_LOAD: {
7301 char *str = mono_type_get_full_name (klass);
7302 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7303 name = mono_string_new (mono_domain_get (), str);
7305 ex = mono_get_exception_type_load (name, astr);
7309 case MONO_EXCEPTION_MISSING_METHOD: {
7310 char *class_name = exception_data;
7311 char *assembly_name = class_name + strlen (class_name) + 1;
7313 return mono_get_exception_missing_method (class_name, assembly_name);
7315 case MONO_EXCEPTION_MISSING_FIELD: {
7316 char *class_name = exception_data;
7317 char *member_name = class_name + strlen (class_name) + 1;
7319 return mono_get_exception_missing_field (class_name, member_name);
7321 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7322 char *msg_format = exception_data;
7323 char *assembly_name = msg_format + strlen (msg_format) + 1;
7324 char *msg = g_strdup_printf (msg_format, assembly_name);
7327 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7333 case MONO_EXCEPTION_BAD_IMAGE: {
7334 return mono_get_exception_bad_image_format (exception_data);
7337 MonoLoaderError *error;
7340 error = mono_loader_get_last_error ();
7342 ex = mono_loader_error_prepare_exception (error);
7346 /* TODO - handle other class related failures */
7353 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7355 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7356 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7358 if (outer_klass == inner_klass)
7360 inner_klass = inner_klass->nested_in;
7361 } while (inner_klass);
7366 mono_class_get_generic_type_definition (MonoClass *klass)
7368 return klass->generic_class ? klass->generic_class->container_class : klass;
7372 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7374 * Generic instantiations are ignored for all super types of @klass.
7376 * Visibility checks ignoring generic instantiations.
7379 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7382 klass = mono_class_get_generic_type_definition (klass);
7383 parent = mono_class_get_generic_type_definition (parent);
7385 for (i = 0; i < klass->idepth; ++i) {
7386 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7392 * Subtype can only access parent members with family protection if the site object
7393 * is subclass of Subtype. For example:
7394 * class A { protected int x; }
7396 * void valid_access () {
7400 * void invalid_access () {
7407 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7409 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7412 if (context_klass == NULL)
7414 /*if access_klass is not member_klass context_klass must be type compat*/
7415 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7421 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7424 if (accessing == accessed)
7426 if (!accessed || !accessing)
7428 mono_assembly_load_friends (accessed);
7429 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7430 MonoAssemblyName *friend = tmp->data;
7431 /* Be conservative with checks */
7434 if (strcmp (accessing->aname.name, friend->name))
7436 if (friend->public_key_token [0]) {
7437 if (!accessing->aname.public_key_token [0])
7439 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7448 * If klass is a generic type or if it is derived from a generic type, return the
7449 * MonoClass of the generic definition
7450 * Returns NULL if not found
7453 get_generic_definition_class (MonoClass *klass)
7456 if (klass->generic_class && klass->generic_class->container_class)
7457 return klass->generic_class->container_class;
7458 klass = klass->parent;
7464 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7467 for (i = 0; i < ginst->type_argc; ++i) {
7468 MonoType *type = ginst->type_argv[i];
7469 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
7471 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7478 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7480 int access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7482 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7485 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7488 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7491 switch (access_level) {
7492 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7493 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7495 case TYPE_ATTRIBUTE_PUBLIC:
7498 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7501 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7502 return is_nesting_type (member_klass, access_klass);
7504 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7505 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7507 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7508 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7510 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7511 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7512 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7514 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7515 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7516 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7521 /* FIXME: check visibility of type, too */
7523 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7525 MonoClass *member_generic_def;
7526 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7527 access_klass->generic_container) &&
7528 (member_generic_def = get_generic_definition_class (member_klass))) {
7529 MonoClass *access_container;
7531 if (access_klass->generic_container)
7532 access_container = access_klass;
7534 access_container = access_klass->generic_class->container_class;
7536 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7540 /* Partition I 8.5.3.2 */
7541 /* the access level values are the same for fields and methods */
7542 switch (access_level) {
7543 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7544 /* same compilation unit */
7545 return access_klass->image == member_klass->image;
7546 case FIELD_ATTRIBUTE_PRIVATE:
7547 return access_klass == member_klass;
7548 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7549 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7550 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7553 case FIELD_ATTRIBUTE_ASSEMBLY:
7554 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7555 case FIELD_ATTRIBUTE_FAMILY:
7556 if (is_valid_family_access (access_klass, member_klass, context_klass))
7559 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7560 if (is_valid_family_access (access_klass, member_klass, context_klass))
7562 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7563 case FIELD_ATTRIBUTE_PUBLIC:
7570 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7572 /* FIXME: check all overlapping fields */
7573 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7575 MonoClass *nested = method->klass->nested_in;
7577 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7580 nested = nested->nested_in;
7587 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7589 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7591 MonoClass *nested = method->klass->nested_in;
7593 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7596 nested = nested->nested_in;
7601 * with generics calls to explicit interface implementations can be expressed
7602 * directly: the method is private, but we must allow it. This may be opening
7603 * a hole or the generics code should handle this differently.
7604 * Maybe just ensure the interface type is public.
7606 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7612 * mono_method_can_access_method_with_context:
7613 * @method: The caller method
7614 * @called: The called method
7615 * @context_klass:TThe static type on stack of the owner @called object used
7617 * This function must be used with instance calls, as they have more strict family accessibility.
7618 * It can be used with static mehthod, but context_klass should be NULL.
7620 * Returns: TRUE if caller have proper visibility and acessibility to @called
7623 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7625 MonoClass *access_class = method->klass;
7626 MonoClass *member_class = called->klass;
7627 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7629 MonoClass *nested = access_class->nested_in;
7631 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7634 nested = nested->nested_in;
7641 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7644 if (called->is_inflated) {
7645 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7646 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7655 * mono_method_can_access_method_with_context:
7656 * @method: The caller method
7657 * @field: The accessed field
7658 * @context_klass: The static type on stack of the owner @field object used
7660 * This function must be used with instance fields, as they have more strict family accessibility.
7661 * It can be used with static fields, but context_klass should be NULL.
7663 * Returns: TRUE if caller have proper visibility and acessibility to @field
7666 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7668 MonoClass *access_class = method->klass;
7669 MonoClass *member_class = field->parent;
7670 /* FIXME: check all overlapping fields */
7671 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7673 MonoClass *nested = access_class->nested_in;
7675 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7678 nested = nested->nested_in;
7685 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7691 * mono_type_is_valid_enum_basetype:
7692 * @type: The MonoType to check
7694 * Returns: TRUE if the type can be used as the basetype of an enum
7696 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7697 switch (type->type) {
7700 case MONO_TYPE_BOOLEAN:
7703 case MONO_TYPE_CHAR:
7716 * mono_class_is_valid_enum:
7717 * @klass: An enum class to be validated
7719 * This method verify the required properties an enum should have.
7721 * Returns: TRUE if the informed enum class is valid
7723 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7724 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7725 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7727 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7728 MonoClassField * field;
7729 gpointer iter = NULL;
7730 gboolean found_base_field = FALSE;
7732 g_assert (klass->enumtype);
7733 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7734 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7738 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7741 while ((field = mono_class_get_fields (klass, &iter))) {
7742 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7743 if (found_base_field)
7745 found_base_field = TRUE;
7746 if (!mono_type_is_valid_enum_basetype (field->type))
7751 if (!found_base_field)
7754 if (klass->method.count > 0)
7761 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7763 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7767 * mono_class_generic_sharing_enabled:
7770 * Returns whether generic sharing is enabled for class.
7772 * This is a stop-gap measure to slowly introduce generic sharing
7773 * until we have all the issues sorted out, at which time this
7774 * function will disappear and generic sharing will always be enabled.
7777 mono_class_generic_sharing_enabled (MonoClass *class)
7779 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
7780 static gboolean supported = TRUE;
7782 /* Not supported by the JIT backends */
7783 static gboolean supported = FALSE;
7785 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7786 static gboolean inited = FALSE;
7792 generic_sharing = MONO_GENERIC_SHARING_ALL;
7794 generic_sharing = MONO_GENERIC_SHARING_NONE;
7796 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7797 if (strcmp (option, "corlib") == 0)
7798 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7799 else if (strcmp (option, "collections") == 0)
7800 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7801 else if (strcmp (option, "all") == 0)
7802 generic_sharing = MONO_GENERIC_SHARING_ALL;
7803 else if (strcmp (option, "none") == 0)
7804 generic_sharing = MONO_GENERIC_SHARING_NONE;
7806 g_warning ("Unknown generic sharing option `%s'.", option);
7810 generic_sharing = MONO_GENERIC_SHARING_NONE;
7815 switch (generic_sharing) {
7816 case MONO_GENERIC_SHARING_NONE:
7818 case MONO_GENERIC_SHARING_ALL:
7820 case MONO_GENERIC_SHARING_CORLIB :
7821 return class->image == mono_defaults.corlib;
7822 case MONO_GENERIC_SHARING_COLLECTIONS:
7823 if (class->image != mono_defaults.corlib)
7825 while (class->nested_in)
7826 class = class->nested_in;
7827 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7829 g_assert_not_reached ();
7834 * mono_class_setup_interface_id:
7836 * Initializes MonoClass::interface_id if required.
7838 * LOCKING: Acquires the loader lock.
7841 mono_class_setup_interface_id (MonoClass *class)
7843 mono_loader_lock ();
7844 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
7845 class->interface_id = mono_get_unique_iid (class);
7846 mono_loader_unlock ();
7850 * mono_class_alloc_ext:
7852 * Allocate klass->ext if not already done.
7853 * LOCKING: Assumes the loader lock is held.
7856 mono_class_alloc_ext (MonoClass *klass)
7859 if (klass->generic_class) {
7860 klass->ext = g_new0 (MonoClassExt, 1);
7862 klass->ext = mono_image_alloc0 (klass->image, sizeof (MonoClassExt));
7864 class_ext_size += sizeof (MonoClassExt);
7869 * mono_class_setup_interfaces:
7871 * Initialize class->interfaces/interfaces_count.
7872 * LOCKING: Acquires the loader lock.
7875 mono_class_setup_interfaces (MonoClass *klass)
7879 if (klass->interfaces_inited)
7882 mono_loader_lock ();
7884 if (klass->interfaces_inited) {
7885 mono_loader_unlock ();
7889 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
7892 /* generic IList, ICollection, IEnumerable */
7893 klass->interface_count = 1;
7894 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
7896 args [0] = &klass->element_class->byval_arg;
7897 klass->interfaces [0] = mono_class_bind_generic_parameters (
7898 mono_defaults.generic_ilist_class, 1, args, FALSE);
7899 } else if (klass->generic_class) {
7900 MonoClass *gklass = klass->generic_class->container_class;
7902 klass->interface_count = gklass->interface_count;
7903 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
7904 for (i = 0; i < klass->interface_count; i++)
7905 klass->interfaces [i] = mono_class_inflate_generic_class (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class));
7908 mono_memory_barrier ();
7910 klass->interfaces_inited = TRUE;
7912 mono_loader_unlock ();