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_size, inflated_methods_size;
58 /* Function supplied by the runtime to find classes by name using information from the AOT file */
59 static MonoGetClassFromName get_class_from_name = NULL;
61 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
62 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
63 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
64 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
65 static int generic_array_methods (MonoClass *class);
66 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
68 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
70 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
71 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
74 * mono_class_from_typeref:
76 * @type_token: a TypeRef token
78 * Creates the MonoClass* structure representing the type defined by
79 * the typeref token valid inside @image.
80 * Returns: the MonoClass* representing the typeref token, NULL ifcould
84 mono_class_from_typeref (MonoImage *image, guint32 type_token)
86 guint32 cols [MONO_TYPEREF_SIZE];
87 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
89 const char *name, *nspace;
93 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
95 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
96 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
98 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
99 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
100 case MONO_RESOLTION_SCOPE_MODULE:
102 g_error ("null ResolutionScope not yet handled");
103 /* a typedef in disguise */
104 return mono_class_from_name (image, nspace, name);
105 case MONO_RESOLTION_SCOPE_MODULEREF:
106 module = mono_image_load_module (image, idx);
108 return mono_class_from_name (module, nspace, name);
110 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
113 human_name = mono_stringify_assembly_name (&image->assembly->aname);
114 mono_loader_set_error_type_load (msg, human_name);
120 case MONO_RESOLTION_SCOPE_TYPEREF: {
121 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
124 if (enclosing->nested_classes_inited) {
125 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
126 for (tmp = enclosing->nested_classes; tmp; tmp = tmp->next) {
128 if (strcmp (res->name, name) == 0)
132 /* Don't call mono_class_init as we might've been called by it recursively */
133 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
135 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
136 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
137 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
139 if (strcmp (nname, name) == 0)
140 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
142 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
145 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
148 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
152 if (!image->references || !image->references [idx - 1])
153 mono_assembly_load_reference (image, idx - 1);
154 g_assert (image->references [idx - 1]);
156 /* If the assembly did not load, register this as a type load exception */
157 if (image->references [idx - 1] == REFERENCE_MISSING){
158 MonoAssemblyName aname;
161 mono_assembly_get_assemblyref (image, idx - 1, &aname);
162 human_name = mono_stringify_assembly_name (&aname);
163 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
169 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
174 mono_mempool_dup (MonoMemPool *mp, void *data, guint size)
176 void *res = mono_mempool_alloc (mp, size);
177 memcpy (res, data, size);
181 /* Copy everything mono_metadata_free_array free. */
183 mono_dup_array_type (MonoMemPool *mp, MonoArrayType *a)
187 a = mono_mempool_dup (mp, a, sizeof (MonoArrayType));
189 a->sizes = mono_mempool_dup (mp, a->sizes, a->numsizes * sizeof (int));
191 a->lobounds = mono_mempool_dup (mp, a->lobounds, a->numlobounds * sizeof (int));
192 mono_loader_unlock ();
194 a = g_memdup (a, sizeof (MonoArrayType));
196 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
198 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
203 /* Copy everything mono_metadata_free_method_signature free. */
205 mono_metadata_signature_deep_dup (MonoMemPool *mp, MonoMethodSignature *sig)
209 sig = mono_metadata_signature_dup_full (mp, sig);
211 sig->ret = mono_metadata_type_dup (mp, sig->ret);
212 for (i = 0; i < sig->param_count; ++i)
213 sig->params [i] = mono_metadata_type_dup (mp, sig->params [i]);
219 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
221 MonoAssembly *ta = klass->image->assembly;
223 g_string_append_printf (
224 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
226 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
227 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
228 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
229 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
233 mono_type_name_check_byref (MonoType *type, GString *str)
236 g_string_append_c (str, '&');
240 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
241 MonoTypeNameFormat format)
245 switch (type->type) {
246 case MONO_TYPE_ARRAY: {
247 int i, rank = type->data.array->rank;
248 MonoTypeNameFormat nested_format;
250 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
251 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
253 mono_type_get_name_recurse (
254 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
255 g_string_append_c (str, '[');
257 g_string_append_c (str, '*');
258 for (i = 1; i < rank; i++)
259 g_string_append_c (str, ',');
260 g_string_append_c (str, ']');
262 mono_type_name_check_byref (type, str);
264 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
265 _mono_type_get_assembly_name (type->data.array->eklass, str);
268 case MONO_TYPE_SZARRAY: {
269 MonoTypeNameFormat nested_format;
271 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
272 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
274 mono_type_get_name_recurse (
275 &type->data.klass->byval_arg, str, FALSE, nested_format);
276 g_string_append (str, "[]");
278 mono_type_name_check_byref (type, str);
280 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
281 _mono_type_get_assembly_name (type->data.klass, str);
284 case MONO_TYPE_PTR: {
285 MonoTypeNameFormat nested_format;
287 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
288 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
290 mono_type_get_name_recurse (
291 type->data.type, str, FALSE, nested_format);
292 g_string_append_c (str, '*');
294 mono_type_name_check_byref (type, str);
296 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
297 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
302 g_assert (type->data.generic_param->name);
303 g_string_append (str, type->data.generic_param->name);
305 mono_type_name_check_byref (type, str);
309 klass = mono_class_from_mono_type (type);
310 if (klass->nested_in) {
311 mono_type_get_name_recurse (
312 &klass->nested_in->byval_arg, str, TRUE, format);
313 if (format == MONO_TYPE_NAME_FORMAT_IL)
314 g_string_append_c (str, '.');
316 g_string_append_c (str, '+');
317 } else if (*klass->name_space) {
318 g_string_append (str, klass->name_space);
319 g_string_append_c (str, '.');
321 if (format == MONO_TYPE_NAME_FORMAT_IL) {
322 char *s = strchr (klass->name, '`');
323 int len = s ? s - klass->name : strlen (klass->name);
325 g_string_append_len (str, klass->name, len);
327 g_string_append (str, klass->name);
330 if (klass->generic_class) {
331 MonoGenericClass *gclass = klass->generic_class;
332 MonoGenericInst *inst = gclass->context.class_inst;
333 MonoTypeNameFormat nested_format;
336 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
337 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
339 if (format == MONO_TYPE_NAME_FORMAT_IL)
340 g_string_append_c (str, '<');
342 g_string_append_c (str, '[');
343 for (i = 0; i < inst->type_argc; i++) {
344 MonoType *t = inst->type_argv [i];
347 g_string_append_c (str, ',');
348 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
349 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
350 g_string_append_c (str, '[');
351 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
352 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
353 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
354 g_string_append_c (str, ']');
356 if (format == MONO_TYPE_NAME_FORMAT_IL)
357 g_string_append_c (str, '>');
359 g_string_append_c (str, ']');
360 } else if (klass->generic_container &&
361 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
362 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
365 if (format == MONO_TYPE_NAME_FORMAT_IL)
366 g_string_append_c (str, '<');
368 g_string_append_c (str, '[');
369 for (i = 0; i < klass->generic_container->type_argc; i++) {
371 g_string_append_c (str, ',');
372 g_string_append (str, klass->generic_container->type_params [i].name);
374 if (format == MONO_TYPE_NAME_FORMAT_IL)
375 g_string_append_c (str, '>');
377 g_string_append_c (str, ']');
380 mono_type_name_check_byref (type, str);
382 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
383 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
384 _mono_type_get_assembly_name (klass, str);
390 * mono_type_get_name:
392 * @format: the format for the return string.
395 * Returns: the string representation in a number of formats:
397 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
398 * returned in the formatrequired by System.Reflection, this is the
399 * inverse of mono_reflection_parse_type ().
401 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
402 * be used by the IL assembler.
404 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
406 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
409 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
413 result = g_string_new ("");
415 mono_type_get_name_recurse (type, result, FALSE, format);
417 return g_string_free (result, FALSE);
421 * mono_type_get_full_name:
424 * Returns: the string representation for type as required by System.Reflection.
425 * The inverse of mono_reflection_parse_type ().
428 mono_type_get_full_name (MonoClass *class)
430 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
434 * mono_type_get_name:
437 * Returns: the string representation for type as it would be represented in IL code.
440 mono_type_get_name (MonoType *type)
442 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
446 * mono_type_get_underlying_type:
449 * Returns: the MonoType for the underlying integer type if @type
450 * is an enum and byref is false, otherwise the type itself.
453 mono_type_get_underlying_type (MonoType *type)
455 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
456 return mono_class_enum_basetype (type->data.klass);
457 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
458 return mono_class_enum_basetype (type->data.generic_class->container_class);
463 * mono_class_is_open_constructed_type:
466 * Returns TRUE if type represents a generics open constructed type
467 * (not all the type parameters required for the instantiation have
471 mono_class_is_open_constructed_type (MonoType *t)
477 case MONO_TYPE_SZARRAY:
478 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
479 case MONO_TYPE_ARRAY:
480 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
482 return mono_class_is_open_constructed_type (t->data.type);
483 case MONO_TYPE_GENERICINST:
484 return t->data.generic_class->context.class_inst->is_open;
491 inflate_generic_type (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
493 switch (type->type) {
494 case MONO_TYPE_MVAR: {
496 int num = type->data.generic_param->num;
497 MonoGenericInst *inst = context->method_inst;
498 if (!inst || !inst->type_argv)
500 if (num >= inst->type_argc)
501 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
504 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
505 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
506 * ->byref and ->attrs from @type are propagated to the returned type.
508 nt = mono_metadata_type_dup (mempool, inst->type_argv [num]);
509 nt->byref = type->byref;
510 nt->attrs = type->attrs;
513 case MONO_TYPE_VAR: {
515 int num = type->data.generic_param->num;
516 MonoGenericInst *inst = context->class_inst;
519 if (num >= inst->type_argc)
520 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
521 nt = mono_metadata_type_dup (mempool, inst->type_argv [num]);
522 nt->byref = type->byref;
523 nt->attrs = type->attrs;
526 case MONO_TYPE_SZARRAY: {
527 MonoClass *eclass = type->data.klass;
528 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
531 nt = mono_metadata_type_dup (mempool, type);
532 nt->data.klass = mono_class_from_mono_type (inflated);
533 mono_metadata_free_type (inflated);
536 case MONO_TYPE_ARRAY: {
537 MonoClass *eclass = type->data.array->eklass;
538 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
541 nt = mono_metadata_type_dup (mempool, type);
542 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
543 nt->data.array->eklass = mono_class_from_mono_type (inflated);
544 mono_metadata_free_type (inflated);
547 case MONO_TYPE_GENERICINST: {
548 MonoGenericClass *gclass = type->data.generic_class;
549 MonoGenericInst *inst;
551 if (!gclass->context.class_inst->is_open)
554 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
555 if (inst != gclass->context.class_inst)
556 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
558 if (gclass == type->data.generic_class)
561 nt = mono_metadata_type_dup (mempool, type);
562 nt->data.generic_class = gclass;
565 case MONO_TYPE_CLASS:
566 case MONO_TYPE_VALUETYPE: {
567 MonoClass *klass = type->data.klass;
568 MonoGenericContainer *container = klass->generic_container;
569 MonoGenericInst *inst;
570 MonoGenericClass *gclass = NULL;
576 /* We can't use context->class_inst directly, since it can have more elements */
577 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
578 if (inst == container->context.class_inst)
581 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
583 nt = mono_metadata_type_dup (mempool, type);
584 nt->type = MONO_TYPE_GENERICINST;
585 nt->data.generic_class = gclass;
595 mono_generic_class_get_context (MonoGenericClass *gclass)
597 return &gclass->context;
601 mono_class_get_context (MonoClass *class)
603 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
607 * mono_class_get_generic_container:
609 * Return the generic container of KLASS which should be a generic type definition.
611 MonoGenericContainer*
612 mono_class_get_generic_container (MonoClass *klass)
614 g_assert (klass->is_generic);
616 return klass->generic_container;
620 * mono_class_get_generic_class:
622 * Return the MonoGenericClass of KLASS, which should be a generic instance.
625 mono_class_get_generic_class (MonoClass *klass)
627 g_assert (klass->is_inflated);
629 return klass->generic_class;
633 * mono_class_inflate_generic_type_with_mempool:
634 * @mempool: a mempool
636 * @context: a generics context
638 * The same as mono_class_inflate_generic_type, but allocates the MonoType
639 * from mempool if it is non-NULL. If it is NULL, the MonoType is
640 * allocated on the heap and is owned by the caller.
641 * The returned type can potentially be the same as TYPE, so it should not be
642 * modified by the caller, and it should be freed using mono_metadata_free_type ().
645 mono_class_inflate_generic_type_with_mempool (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
647 MonoType *inflated = NULL;
650 inflated = inflate_generic_type (mempool, type, context);
653 MonoType *shared = mono_metadata_get_shared_type (type);
658 return mono_metadata_type_dup (mempool, type);
662 mono_stats.inflated_type_count++;
667 * mono_class_inflate_generic_type:
669 * @context: a generics context
671 * If @type is a generic type and @context is not NULL, instantiate it using the
672 * generics context @context.
674 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
675 * on the heap and is owned by the caller.
678 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
680 return mono_class_inflate_generic_type_with_mempool (NULL, type, context);
684 * mono_class_inflate_generic_type_with_mempool_no_copy:
686 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
690 mono_class_inflate_generic_type_with_mempool_no_copy (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
692 MonoType *inflated = NULL;
695 inflated = inflate_generic_type (mempool, type, context);
700 mono_stats.inflated_type_count++;
705 * mono_class_inflate_generic_class:
707 * Inflate the class GKLASS with CONTEXT.
710 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
715 inflated = mono_class_inflate_generic_type (&gklass->byval_arg, context);
717 res = mono_class_from_mono_type (inflated);
718 mono_metadata_free_type (inflated);
723 static MonoGenericContext
724 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
726 MonoGenericInst *class_inst = NULL;
727 MonoGenericInst *method_inst = NULL;
728 MonoGenericContext res;
730 if (context->class_inst)
731 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
733 if (context->method_inst)
734 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
736 res.class_inst = class_inst;
737 res.method_inst = method_inst;
743 * mono_class_inflate_generic_method:
744 * @method: a generic method
745 * @context: a generics context
747 * Instantiate the generic method @method using the generics context @context.
749 * Returns: the new instantiated method
752 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
754 return mono_class_inflate_generic_method_full (method, NULL, context);
758 * mono_class_inflate_generic_method:
760 * Instantiate method @method with the generic context @context.
761 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
762 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
765 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
768 MonoMethodInflated *iresult, *cached;
769 MonoMethodSignature *sig;
770 MonoGenericContext tmp_context;
771 gboolean is_mb_open = FALSE;
773 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
774 while (method->is_inflated) {
775 MonoGenericContext *method_context = mono_method_get_context (method);
776 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
778 tmp_context = inflate_generic_context (method_context, context);
779 context = &tmp_context;
781 if (mono_metadata_generic_context_equal (method_context, context))
784 method = imethod->declaring;
787 if (!method->is_generic && !method->klass->generic_container)
791 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
792 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
793 * This is opposite to the way non-SRE MethodInfos behave.
795 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
797 * void Example<T> () {
801 * In Example, the method token must be encoded as: "void Example<!!0>()"
803 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
804 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
806 * On the other hand, inflating a non-SRE generic method with its own arguments should
807 * return itself. For example:
809 * MethodInfo m = ... //m is a generic method definition
810 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
813 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
814 * what happens with regular methods.
816 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
817 * everything should behave like a regular type or method.
820 is_mb_open = method->is_generic &&
821 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
822 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
824 iresult = g_new0 (MonoMethodInflated, 1);
825 iresult->context = *context;
826 iresult->declaring = method;
827 iresult->is_mb_open = is_mb_open;
829 if (!context->method_inst && method->is_generic)
830 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
832 if (!context->class_inst) {
833 g_assert (!iresult->declaring->klass->generic_class);
834 if (iresult->declaring->klass->generic_container)
835 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
836 else if (iresult->declaring->klass->generic_class)
837 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
841 cached = mono_method_inflated_lookup (iresult, FALSE);
843 mono_loader_unlock ();
845 return (MonoMethod*)cached;
848 mono_stats.inflated_method_count++;
850 inflated_methods_size += sizeof (MonoMethodInflated);
852 sig = mono_method_signature (method);
854 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
856 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
857 iresult->method.normal.header = NULL;
860 result = (MonoMethod *) iresult;
861 result->is_inflated = TRUE;
862 result->is_generic = FALSE;
863 result->signature = NULL;
865 if (!context->method_inst) {
866 /* Set the generic_container of the result to the generic_container of method */
867 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
869 if (generic_container) {
870 result->is_generic = 1;
871 mono_method_set_generic_container (result, generic_container);
875 if (!klass_hint || !klass_hint->generic_class ||
876 klass_hint->generic_class->container_class != method->klass ||
877 klass_hint->generic_class->context.class_inst != context->class_inst)
880 if (method->klass->generic_container)
881 result->klass = klass_hint;
883 if (!result->klass) {
884 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context);
885 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
887 mono_metadata_free_type (inflated);
890 mono_method_inflated_lookup (iresult, TRUE);
891 mono_loader_unlock ();
896 * mono_get_inflated_method:
898 * Obsolete. We keep it around since it's mentioned in the public API.
901 mono_get_inflated_method (MonoMethod *method)
907 mono_method_get_context (MonoMethod *method)
909 MonoMethodInflated *imethod;
910 if (!method->is_inflated)
912 imethod = (MonoMethodInflated *) method;
913 return &imethod->context;
917 * mono_method_get_generic_container:
919 * Returns the generic container of METHOD, which should be a generic method definition.
920 * Returns NULL if METHOD is not a generic method definition.
921 * LOCKING: Acquires the loader lock.
923 MonoGenericContainer*
924 mono_method_get_generic_container (MonoMethod *method)
926 MonoGenericContainer *container;
928 if (!method->is_generic)
932 container = mono_property_hash_lookup (method->klass->image->property_hash, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
933 mono_loader_unlock ();
934 g_assert (container);
940 * mono_method_set_generic_container:
942 * Sets the generic container of METHOD to CONTAINER.
943 * LOCKING: Acquires the loader lock.
946 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
948 g_assert (method->is_generic);
951 mono_property_hash_insert (method->klass->image->property_hash, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
952 mono_loader_unlock ();
956 * mono_class_find_enum_basetype:
957 * @class: The enum class
959 * Determine the basetype of an enum by iterating through its fields. We do this
960 * in a separate function since it is cheaper than calling mono_class_setup_fields.
963 mono_class_find_enum_basetype (MonoClass *class)
965 MonoImage *m = class->image;
966 const int top = class->field.count;
969 g_assert (class->enumtype);
972 * Fetch all the field information.
974 for (i = 0; i < top; i++){
976 guint32 cols [MONO_FIELD_SIZE];
977 int idx = class->field.first + i;
978 MonoGenericContainer *container = NULL;
981 /* class->field.first and idx points into the fieldptr table */
982 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
983 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
984 mono_metadata_decode_value (sig, &sig);
985 /* FIELD signature == 0x06 */
986 g_assert (*sig == 0x06);
987 if (class->generic_container)
988 container = class->generic_container;
989 else if (class->generic_class) {
990 MonoClass *gklass = class->generic_class->container_class;
992 container = gklass->generic_container;
993 g_assert (container);
995 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
998 if (class->generic_class) {
999 //FIXME do we leak here?
1000 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1001 ftype->attrs = cols [MONO_FIELD_FLAGS];
1004 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
1012 * mono_class_setup_fields:
1013 * @class: The class to initialize
1015 * Initializes the class->fields.
1016 * LOCKING: Assumes the loader lock is held.
1019 mono_class_setup_fields (MonoClass *class)
1021 MonoImage *m = class->image;
1022 int top = class->field.count;
1023 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1024 int i, blittable = TRUE;
1025 guint32 real_size = 0;
1026 guint32 packing_size = 0;
1027 gboolean explicit_size;
1028 MonoClassField *field;
1029 MonoGenericContainer *container = NULL;
1030 MonoClass *gklass = NULL;
1032 if (class->size_inited)
1035 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1037 * This happens when a generic instance of an unfinished generic typebuilder
1038 * is used as an element type for creating an array type. We can't initialize
1039 * the fields of this class using the fields of gklass, since gklass is not
1040 * finished yet, fields could be added to it later.
1045 if (class->generic_class) {
1046 MonoClass *gklass = class->generic_class->container_class;
1047 mono_class_setup_fields (gklass);
1048 top = gklass->field.count;
1049 class->field.count = gklass->field.count;
1052 class->instance_size = 0;
1054 class->sizes.class_size = 0;
1056 if (class->parent) {
1057 /* For generic instances, class->parent might not have been initialized */
1058 mono_class_init (class->parent);
1059 if (!class->parent->size_inited)
1060 mono_class_setup_fields (class->parent);
1061 class->instance_size += class->parent->instance_size;
1062 class->min_align = class->parent->min_align;
1063 /* we use |= since it may have been set already */
1064 class->has_references |= class->parent->has_references;
1065 blittable = class->parent->blittable;
1067 class->instance_size = sizeof (MonoObject);
1068 class->min_align = 1;
1071 if (class->simd_type)
1072 class->min_align = 16;
1074 /* Get the real size */
1075 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1077 if (explicit_size) {
1078 g_assert ((packing_size & 0xfffffff0) == 0);
1079 class->packing_size = packing_size;
1080 real_size += class->instance_size;
1084 if (explicit_size && real_size) {
1085 class->instance_size = MAX (real_size, class->instance_size);
1087 class->size_inited = 1;
1088 class->blittable = blittable;
1092 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1095 /* Prevent infinite loops if the class references itself */
1096 class->size_inited = 1;
1098 class->fields = mono_image_alloc0 (class->image, sizeof (MonoClassField) * top);
1100 if (class->generic_container) {
1101 container = class->generic_container;
1102 } else if (class->generic_class) {
1103 gklass = class->generic_class->container_class;
1104 container = gklass->generic_container;
1105 g_assert (container);
1107 mono_class_setup_fields (gklass);
1109 if (gklass->exception_type) {
1110 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1116 * Fetch all the field information.
1118 for (i = 0; i < top; i++){
1119 int idx = class->field.first + i;
1120 field = &class->fields [i];
1122 field->parent = class;
1124 if (class->generic_class) {
1125 MonoClassField *gfield = &gklass->fields [i];
1127 field->name = mono_field_get_name (gfield);
1128 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1129 field->type = mono_class_inflate_generic_type_with_mempool_no_copy (class->image->mempool, gfield->type, mono_class_get_context (class));
1130 g_assert (field->type->attrs == gfield->type->attrs);
1131 if (mono_field_is_deleted (field))
1133 field->offset = gfield->offset;
1136 guint32 cols [MONO_FIELD_SIZE];
1138 /* class->field.first and idx points into the fieldptr table */
1139 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1140 /* The name is needed for fieldrefs */
1141 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1142 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1143 mono_metadata_decode_value (sig, &sig);
1144 /* FIELD signature == 0x06 */
1145 g_assert (*sig == 0x06);
1146 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1148 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1151 if (mono_field_is_deleted (field))
1153 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1155 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1156 field->offset = offset;
1157 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1158 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1159 class->name, mono_field_get_name (field));
1163 /* Only do these checks if we still think this type is blittable */
1164 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1165 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1168 MonoClass *field_class = mono_class_from_mono_type (field->type);
1170 mono_class_setup_fields (field_class);
1171 if (!field_class || !field_class->blittable)
1176 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1177 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1178 blittable = class->element_class->blittable;
1181 /* The def_value of fields is compute lazily during vtable creation */
1184 if (class == mono_defaults.string_class)
1187 class->blittable = blittable;
1189 if (class->enumtype && !mono_class_enum_basetype (class)) {
1190 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1193 if (explicit_size && real_size) {
1194 class->instance_size = MAX (real_size, class->instance_size);
1197 if (class->exception_type)
1199 mono_class_layout_fields (class);
1203 * mono_class_setup_fields_locking:
1204 * @class: The class to initialize
1206 * Initializes the class->fields array of fields.
1207 * Aquires the loader lock.
1210 mono_class_setup_fields_locking (MonoClass *class)
1212 mono_loader_lock ();
1213 mono_class_setup_fields (class);
1214 mono_loader_unlock ();
1218 * mono_class_has_references:
1220 * Returns whenever @klass->has_references is set, initializing it if needed.
1221 * Aquires the loader lock.
1224 mono_class_has_references (MonoClass *klass)
1226 if (klass->init_pending) {
1227 /* Be conservative */
1230 mono_class_init (klass);
1232 return klass->has_references;
1236 /* useful until we keep track of gc-references in corlib etc. */
1238 #define IS_GC_REFERENCE(t) FALSE
1240 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1244 * mono_type_get_basic_type_from_generic:
1247 * Returns a closed type corresponding to the possibly open type
1251 mono_type_get_basic_type_from_generic (MonoType *type)
1253 /* When we do generic sharing we let type variables stand for reference types. */
1254 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1255 return &mono_defaults.object_class->byval_arg;
1260 * mono_class_layout_fields:
1263 * Compute the placement of fields inside an object or struct, according to
1264 * the layout rules and set the following fields in @class:
1265 * - has_references (if the class contains instance references firled or structs that contain references)
1266 * - has_static_refs (same, but for static fields)
1267 * - instance_size (size of the object in memory)
1268 * - class_size (size needed for the static fields)
1269 * - size_inited (flag set when the instance_size is set)
1271 * LOCKING: this is supposed to be called with the loader lock held.
1274 mono_class_layout_fields (MonoClass *class)
1277 const int top = class->field.count;
1278 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1279 guint32 pass, passes, real_size;
1280 gboolean gc_aware_layout = FALSE;
1281 MonoClassField *field;
1284 * When we do generic sharing we need to have layout
1285 * information for open generic classes (either with a generic
1286 * context containing type variables or with a generic
1287 * container), so we don't return in that case anymore.
1291 * Enable GC aware auto layout: in this mode, reference
1292 * fields are grouped together inside objects, increasing collector
1294 * Requires that all classes whose layout is known to native code be annotated
1295 * with [StructLayout (LayoutKind.Sequential)]
1296 * Value types have gc_aware_layout disabled by default, as per
1297 * what the default is for other runtimes.
1299 /* corlib is missing [StructLayout] directives in many places */
1300 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1301 if (class->image != mono_defaults.corlib &&
1302 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1303 gc_aware_layout = TRUE;
1304 /* from System.dll, used in metadata/process.h */
1305 if (strcmp (class->name, "ProcessStartInfo") == 0)
1306 gc_aware_layout = FALSE;
1309 /* Compute klass->has_references */
1311 * Process non-static fields first, since static fields might recursively
1312 * refer to the class itself.
1314 for (i = 0; i < top; i++) {
1317 field = &class->fields [i];
1319 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1320 ftype = mono_type_get_underlying_type (field->type);
1321 ftype = mono_type_get_basic_type_from_generic (ftype);
1322 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1323 class->has_references = TRUE;
1327 for (i = 0; i < top; i++) {
1330 field = &class->fields [i];
1332 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1333 ftype = mono_type_get_underlying_type (field->type);
1334 ftype = mono_type_get_basic_type_from_generic (ftype);
1335 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1336 class->has_static_refs = TRUE;
1340 for (i = 0; i < top; i++) {
1343 field = &class->fields [i];
1345 ftype = mono_type_get_underlying_type (field->type);
1346 ftype = mono_type_get_basic_type_from_generic (ftype);
1347 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1348 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1349 class->has_static_refs = TRUE;
1351 class->has_references = TRUE;
1356 * Compute field layout and total size (not considering static fields)
1360 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1361 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1363 if (gc_aware_layout)
1368 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1372 real_size = class->parent->instance_size;
1374 real_size = sizeof (MonoObject);
1376 for (pass = 0; pass < passes; ++pass) {
1377 for (i = 0; i < top; i++){
1382 field = &class->fields [i];
1384 if (mono_field_is_deleted (field))
1386 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1389 ftype = mono_type_get_underlying_type (field->type);
1390 ftype = mono_type_get_basic_type_from_generic (ftype);
1391 if (gc_aware_layout) {
1392 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1401 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1402 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1403 /* This field is a hack inserted by MCS to empty structures */
1407 size = mono_type_size (field->type, &align);
1409 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1410 align = class->packing_size ? MIN (class->packing_size, align): align;
1411 /* if the field has managed references, we need to force-align it
1414 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1415 align = MAX (align, sizeof (gpointer));
1417 class->min_align = MAX (align, class->min_align);
1418 field->offset = real_size;
1419 field->offset += align - 1;
1420 field->offset &= ~(align - 1);
1421 real_size = field->offset + size;
1424 class->instance_size = MAX (real_size, class->instance_size);
1426 if (class->instance_size & (class->min_align - 1)) {
1427 class->instance_size += class->min_align - 1;
1428 class->instance_size &= ~(class->min_align - 1);
1432 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1434 for (i = 0; i < top; i++) {
1439 field = &class->fields [i];
1442 * There must be info about all the fields in a type if it
1443 * uses explicit layout.
1446 if (mono_field_is_deleted (field))
1448 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1451 size = mono_type_size (field->type, &align);
1452 class->min_align = MAX (align, class->min_align);
1455 * When we get here, field->offset is already set by the
1456 * loader (for either runtime fields or fields loaded from metadata).
1457 * The offset is from the start of the object: this works for both
1458 * classes and valuetypes.
1460 field->offset += sizeof (MonoObject);
1461 ftype = mono_type_get_underlying_type (field->type);
1462 ftype = mono_type_get_basic_type_from_generic (ftype);
1463 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1464 if (field->offset % sizeof (gpointer)) {
1465 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1472 real_size = MAX (real_size, size + field->offset);
1474 class->instance_size = MAX (real_size, class->instance_size);
1478 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1480 * For small structs, set min_align to at least the struct size to improve
1481 * performance, and since the JIT memset/memcpy code assumes this and generates
1482 * unaligned accesses otherwise. See #78990 for a testcase.
1484 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1485 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1488 class->size_inited = 1;
1491 * Compute static field layout and size
1493 for (i = 0; i < top; i++){
1497 field = &class->fields [i];
1499 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1501 if (mono_field_is_deleted (field))
1504 size = mono_type_size (field->type, &align);
1505 field->offset = class->sizes.class_size;
1506 field->offset += align - 1;
1507 field->offset &= ~(align - 1);
1508 class->sizes.class_size = field->offset + size;
1513 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1517 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1518 method->klass = class;
1519 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1520 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1521 method->signature = sig;
1522 method->name = name;
1525 if (name [0] == '.') {
1526 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1528 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1534 * mono_class_setup_methods:
1537 * Initializes the 'methods' array in the klass.
1538 * Calling this method should be avoided if possible since it allocates a lot
1539 * of long-living MonoMethod structures.
1540 * Methods belonging to an interface are assigned a sequential slot starting
1544 mono_class_setup_methods (MonoClass *class)
1547 MonoMethod **methods;
1552 mono_loader_lock ();
1554 if (class->methods) {
1555 mono_loader_unlock ();
1559 if (class->generic_class) {
1560 MonoClass *gklass = class->generic_class->container_class;
1562 mono_class_init (gklass);
1563 mono_class_setup_methods (gklass);
1565 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1566 class->method.count = gklass->method.count;
1567 methods = g_new0 (MonoMethod *, class->method.count + 1);
1569 for (i = 0; i < class->method.count; i++) {
1570 methods [i] = mono_class_inflate_generic_method_full (
1571 gklass->methods [i], class, mono_class_get_context (class));
1573 } else if (class->rank) {
1574 MonoMethod *amethod;
1575 MonoMethodSignature *sig;
1576 int count_generic = 0, first_generic = 0;
1579 class->method.count = 3 + (class->rank > 1? 2: 1);
1581 if (class->interface_count) {
1582 count_generic = generic_array_methods (class);
1583 first_generic = class->method.count;
1584 class->method.count += class->interface_count * count_generic;
1587 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1589 sig = mono_metadata_signature_alloc (class->image, class->rank);
1590 sig->ret = &mono_defaults.void_class->byval_arg;
1591 sig->pinvoke = TRUE;
1592 sig->hasthis = TRUE;
1593 for (i = 0; i < class->rank; ++i)
1594 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1596 amethod = create_array_method (class, ".ctor", sig);
1597 methods [method_num++] = amethod;
1598 if (class->rank > 1) {
1599 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1600 sig->ret = &mono_defaults.void_class->byval_arg;
1601 sig->pinvoke = TRUE;
1602 sig->hasthis = TRUE;
1603 for (i = 0; i < class->rank * 2; ++i)
1604 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1606 amethod = create_array_method (class, ".ctor", sig);
1607 methods [method_num++] = amethod;
1609 /* element Get (idx11, [idx2, ...]) */
1610 sig = mono_metadata_signature_alloc (class->image, class->rank);
1611 sig->ret = &class->element_class->byval_arg;
1612 sig->pinvoke = TRUE;
1613 sig->hasthis = TRUE;
1614 for (i = 0; i < class->rank; ++i)
1615 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1616 amethod = create_array_method (class, "Get", sig);
1617 methods [method_num++] = amethod;
1618 /* element& Address (idx11, [idx2, ...]) */
1619 sig = mono_metadata_signature_alloc (class->image, class->rank);
1620 sig->ret = &class->element_class->this_arg;
1621 sig->pinvoke = TRUE;
1622 sig->hasthis = TRUE;
1623 for (i = 0; i < class->rank; ++i)
1624 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1625 amethod = create_array_method (class, "Address", sig);
1626 methods [method_num++] = amethod;
1627 /* void Set (idx11, [idx2, ...], element) */
1628 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1629 sig->ret = &mono_defaults.void_class->byval_arg;
1630 sig->pinvoke = TRUE;
1631 sig->hasthis = TRUE;
1632 for (i = 0; i < class->rank; ++i)
1633 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1634 sig->params [i] = &class->element_class->byval_arg;
1635 amethod = create_array_method (class, "Set", sig);
1636 methods [method_num++] = amethod;
1638 for (i = 0; i < class->interface_count; i++)
1639 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1641 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1642 for (i = 0; i < class->method.count; ++i) {
1643 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1644 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1648 if (MONO_CLASS_IS_INTERFACE (class))
1649 for (i = 0; i < class->method.count; ++i)
1650 methods [i]->slot = i;
1652 /* Needed because of the double-checking locking pattern */
1653 mono_memory_barrier ();
1655 class->methods = methods;
1657 if (mono_debugger_class_loaded_methods_func)
1658 mono_debugger_class_loaded_methods_func (class);
1660 mono_loader_unlock ();
1664 * mono_class_get_method_by_index:
1666 * Returns class->methods [index], initializing class->methods if neccesary.
1668 * LOCKING: Acquires the loader lock.
1671 mono_class_get_method_by_index (MonoClass *class, int index)
1673 /* Avoid calling setup_methods () if possible */
1674 if (class->generic_class && !class->methods) {
1675 MonoClass *gklass = class->generic_class->container_class;
1678 m = mono_class_inflate_generic_method_full (
1679 gklass->methods [index], class, mono_class_get_context (class));
1681 * If setup_methods () is called later for this class, no duplicates are created,
1682 * since inflate_generic_method guarantees that only one instance of a method
1683 * is created for each context.
1686 mono_class_setup_methods (class);
1687 g_assert (m == class->methods [index]);
1691 mono_class_setup_methods (class);
1692 g_assert (index >= 0 && index < class->method.count);
1693 return class->methods [index];
1698 * mono_class_get_inflated_method:
1700 * Given an inflated class CLASS and a method METHOD which should be a method of
1701 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1704 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1706 MonoClass *gklass = class->generic_class->container_class;
1709 mono_class_setup_methods (gklass);
1710 for (i = 0; i < gklass->method.count; ++i) {
1711 if (gklass->methods [i] == method) {
1713 return class->methods [i];
1715 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
1723 * mono_class_get_vtable_entry:
1725 * Returns class->vtable [offset], computing it if neccesary.
1726 * LOCKING: Acquires the loader lock.
1729 mono_class_get_vtable_entry (MonoClass *class, int offset)
1731 if (class->generic_class) {
1732 MonoClass *gklass = class->generic_class->container_class;
1733 mono_class_setup_vtable (gklass);
1734 if (gklass->vtable [offset]->wrapper_type != MONO_WRAPPER_STATIC_RGCTX_INVOKE)
1735 return mono_class_inflate_generic_method_full (gklass->vtable [offset], class, mono_class_get_context (class));
1738 if (class->rank == 1) {
1740 * szarrays do not overwrite any methods of Array, so we can avoid
1741 * initializing their vtables in some cases.
1743 mono_class_setup_vtable (class->parent);
1744 if (offset < class->parent->vtable_size)
1745 return class->parent->vtable [offset];
1748 mono_class_setup_vtable (class);
1749 return class->vtable [offset];
1753 mono_class_setup_properties (MonoClass *class)
1755 guint startm, endm, i, j;
1756 guint32 cols [MONO_PROPERTY_SIZE];
1757 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1758 MonoProperty *properties;
1761 if (class->properties)
1764 mono_loader_lock ();
1766 if (class->properties) {
1767 mono_loader_unlock ();
1771 if (class->generic_class) {
1772 MonoClass *gklass = class->generic_class->container_class;
1774 mono_class_init (gklass);
1775 mono_class_setup_properties (gklass);
1777 class->property = gklass->property;
1779 properties = g_new0 (MonoProperty, class->property.count + 1);
1781 for (i = 0; i < class->property.count; i++) {
1782 MonoProperty *prop = &properties [i];
1784 *prop = gklass->properties [i];
1787 prop->get = mono_class_inflate_generic_method_full (
1788 prop->get, class, mono_class_get_context (class));
1790 prop->set = mono_class_inflate_generic_method_full (
1791 prop->set, class, mono_class_get_context (class));
1793 prop->parent = class;
1796 class->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1797 class->property.count = last - class->property.first;
1799 if (class->property.count)
1800 mono_class_setup_methods (class);
1802 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->property.count);
1803 for (i = class->property.first; i < last; ++i) {
1804 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1805 properties [i - class->property.first].parent = class;
1806 properties [i - class->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1807 properties [i - class->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1809 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1810 for (j = startm; j < endm; ++j) {
1813 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1815 if (class->image->uncompressed_metadata)
1816 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1817 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1819 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1821 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1822 case METHOD_SEMANTIC_SETTER:
1823 properties [i - class->property.first].set = method;
1825 case METHOD_SEMANTIC_GETTER:
1826 properties [i - class->property.first].get = method;
1834 /*Flush any pending writes as we do double checked locking on class->properties */
1835 mono_memory_barrier ();
1837 /* Leave this assignment as the last op in the function */
1838 class->properties = properties;
1840 mono_loader_unlock ();
1844 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1846 MonoMethod **om, **retval;
1849 for (om = methods, count = 0; *om; ++om, ++count)
1852 retval = g_new0 (MonoMethod*, count + 1);
1854 for (om = methods, count = 0; *om; ++om, ++count)
1855 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1861 mono_class_setup_events (MonoClass *class)
1863 guint startm, endm, i, j;
1864 guint32 cols [MONO_EVENT_SIZE];
1865 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1872 mono_loader_lock ();
1874 if (class->events) {
1875 mono_loader_unlock ();
1879 if (class->generic_class) {
1880 MonoClass *gklass = class->generic_class->container_class;
1881 MonoGenericContext *context;
1883 mono_class_setup_events (gklass);
1884 class->event = gklass->event;
1886 class->events = g_new0 (MonoEvent, class->event.count);
1888 if (class->event.count)
1889 context = mono_class_get_context (class);
1891 for (i = 0; i < class->event.count; i++) {
1892 MonoEvent *event = &class->events [i];
1893 MonoEvent *gevent = &gklass->events [i];
1895 event->parent = class;
1896 event->name = gevent->name;
1897 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1898 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1899 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1900 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1901 event->attrs = gevent->attrs;
1904 mono_loader_unlock ();
1908 class->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1909 class->event.count = last - class->event.first;
1911 if (class->event.count)
1912 mono_class_setup_methods (class);
1914 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->event.count);
1915 for (i = class->event.first; i < last; ++i) {
1916 MonoEvent *event = &events [i - class->event.first];
1918 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1919 event->parent = class;
1920 event->attrs = cols [MONO_EVENT_FLAGS];
1921 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1923 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1924 for (j = startm; j < endm; ++j) {
1927 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1929 if (class->image->uncompressed_metadata)
1930 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1931 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1933 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1935 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1936 case METHOD_SEMANTIC_ADD_ON:
1937 event->add = method;
1939 case METHOD_SEMANTIC_REMOVE_ON:
1940 event->remove = method;
1942 case METHOD_SEMANTIC_FIRE:
1943 event->raise = method;
1945 case METHOD_SEMANTIC_OTHER: {
1948 if (event->other == NULL) {
1949 event->other = g_new0 (MonoMethod*, 2);
1951 while (event->other [n])
1953 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1955 event->other [n] = method;
1956 /* NULL terminated */
1957 event->other [n + 1] = NULL;
1965 /*Flush any pending writes as we do double checked locking on class->properties */
1966 mono_memory_barrier ();
1968 /* Leave this assignment as the last op in the function */
1969 class->events = events;
1971 mono_loader_unlock ();
1975 * Global pool of interface IDs, represented as a bitset.
1976 * LOCKING: this is supposed to be accessed with the loader lock held.
1978 static MonoBitSet *global_interface_bitset = NULL;
1981 * mono_unload_interface_ids:
1982 * @bitset: bit set of interface IDs
1984 * When an image is unloaded, the interface IDs associated with
1985 * the image are put back in the global pool of IDs so the numbers
1989 mono_unload_interface_ids (MonoBitSet *bitset)
1991 mono_loader_lock ();
1992 mono_bitset_sub (global_interface_bitset, bitset);
1993 mono_loader_unlock ();
1997 * mono_get_unique_iid:
2000 * Assign a unique integer ID to the interface represented by @class.
2001 * The ID will positive and as small as possible.
2002 * LOCKING: this is supposed to be called with the loader lock held.
2003 * Returns: the new ID.
2006 mono_get_unique_iid (MonoClass *class)
2010 g_assert (MONO_CLASS_IS_INTERFACE (class));
2012 if (!global_interface_bitset) {
2013 global_interface_bitset = mono_bitset_new (128, 0);
2016 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2018 int old_size = mono_bitset_size (global_interface_bitset);
2019 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2020 mono_bitset_free (global_interface_bitset);
2021 global_interface_bitset = new_set;
2024 mono_bitset_set (global_interface_bitset, iid);
2025 /* set the bit also in the per-image set */
2026 if (class->image->interface_bitset) {
2027 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2028 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2029 mono_bitset_free (class->image->interface_bitset);
2030 class->image->interface_bitset = new_set;
2033 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2035 mono_bitset_set (class->image->interface_bitset, iid);
2037 if (mono_print_vtable) {
2039 char *type_name = mono_type_full_name (&class->byval_arg);
2040 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2041 generic_id = class->generic_class->context.class_inst->id;
2042 g_assert (generic_id != 0);
2046 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2050 g_assert (iid <= 65535);
2055 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
2060 for (i = 0; i < klass->interface_count; i++) {
2061 ic = klass->interfaces [i];
2064 *res = g_ptr_array_new ();
2065 g_ptr_array_add (*res, ic);
2066 mono_class_init (ic);
2068 collect_implemented_interfaces_aux (ic, res);
2073 mono_class_get_implemented_interfaces (MonoClass *klass)
2075 GPtrArray *res = NULL;
2077 collect_implemented_interfaces_aux (klass, &res);
2082 compare_interface_ids (const void *p_key, const void *p_element) {
2083 const MonoClass *key = p_key;
2084 const MonoClass *element = *(MonoClass**) p_element;
2086 return (key->interface_id - element->interface_id);
2090 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2091 MonoClass **result = bsearch (
2093 klass->interfaces_packed,
2094 klass->interface_offsets_count,
2095 sizeof (MonoClass *),
2096 compare_interface_ids);
2098 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2105 print_implemented_interfaces (MonoClass *klass) {
2106 GPtrArray *ifaces = NULL;
2108 int ancestor_level = 0;
2110 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
2111 for (i = 0; i < klass->interface_offsets_count; i++)
2112 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2113 klass->interfaces_packed [i]->interface_id,
2114 klass->interface_offsets_packed [i],
2115 klass->interfaces_packed [i]->method.count,
2116 klass->interfaces_packed [i]->name_space,
2117 klass->interfaces_packed [i]->name );
2118 printf ("Interface flags: ");
2119 for (i = 0; i <= klass->max_interface_id; i++)
2120 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2121 printf ("(%d,T)", i);
2123 printf ("(%d,F)", i);
2125 printf ("Dump interface flags:");
2126 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2127 printf (" %02X", klass->interface_bitmap [i]);
2129 while (klass != NULL) {
2130 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2131 ifaces = mono_class_get_implemented_interfaces (klass);
2133 for (i = 0; i < ifaces->len; i++) {
2134 MonoClass *ic = g_ptr_array_index (ifaces, i);
2135 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2136 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2138 mono_class_interface_offset (klass, ic),
2143 g_ptr_array_free (ifaces, TRUE);
2146 klass = klass->parent;
2151 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2154 args [0] = &arg0->byval_arg;
2156 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2160 array_class_get_if_rank (MonoClass *class, guint rank)
2162 return rank ? mono_array_class_get (class, rank) : class;
2166 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2168 valuetype_types [0] = eclass;
2169 if (eclass == mono_defaults.int16_class)
2170 valuetype_types [1] = mono_defaults.uint16_class;
2171 else if (eclass == mono_defaults.uint16_class)
2172 valuetype_types [1] = mono_defaults.int16_class;
2173 else if (eclass == mono_defaults.int32_class)
2174 valuetype_types [1] = mono_defaults.uint32_class;
2175 else if (eclass == mono_defaults.uint32_class)
2176 valuetype_types [1] = mono_defaults.int32_class;
2177 else if (eclass == mono_defaults.int64_class)
2178 valuetype_types [1] = mono_defaults.uint64_class;
2179 else if (eclass == mono_defaults.uint64_class)
2180 valuetype_types [1] = mono_defaults.int64_class;
2181 else if (eclass == mono_defaults.byte_class)
2182 valuetype_types [1] = mono_defaults.sbyte_class;
2183 else if (eclass == mono_defaults.sbyte_class)
2184 valuetype_types [1] = mono_defaults.byte_class;
2185 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2186 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2189 /* this won't be needed once bug #325495 is completely fixed
2190 * though we'll need something similar to know which interfaces to allow
2191 * in arrays when they'll be lazyly created
2193 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2194 * MS returns diferrent types based on which instance is called. For example:
2195 * object obj = new byte[10][];
2196 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2197 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2200 * Fixing this should kill quite some code, save some bits and improve compatbility.
2203 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2205 MonoClass *eclass = class->element_class;
2206 static MonoClass* generic_icollection_class = NULL;
2207 static MonoClass* generic_ienumerable_class = NULL;
2208 static MonoClass* generic_ienumerator_class = NULL;
2209 MonoClass *valuetype_types[2] = { NULL, NULL };
2210 MonoClass **interfaces = NULL;
2211 int i, interface_count, real_count, original_rank;
2213 gboolean internal_enumerator;
2214 gboolean eclass_is_valuetype;
2216 if (!mono_defaults.generic_ilist_class) {
2220 internal_enumerator = FALSE;
2221 eclass_is_valuetype = FALSE;
2222 original_rank = eclass->rank;
2223 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2224 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2226 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2228 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2229 original_rank = eclass->rank;
2230 eclass = eclass->element_class;
2231 internal_enumerator = TRUE;
2232 *is_enumerator = TRUE;
2240 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2241 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2243 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2245 if (!generic_icollection_class) {
2246 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2247 "System.Collections.Generic", "ICollection`1");
2248 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2249 "System.Collections.Generic", "IEnumerable`1");
2250 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2251 "System.Collections.Generic", "IEnumerator`1");
2254 mono_class_init (eclass);
2257 * Arrays in 2.0 need to implement a number of generic interfaces
2258 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2259 * on the element class). We collect the types needed to build the
2260 * instantiations in interfaces at intervals of 3, because 3 are
2261 * the generic interfaces needed to implement.
2263 if (eclass->valuetype) {
2264 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2266 /* IList, ICollection, IEnumerable */
2267 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2268 if (internal_enumerator) {
2270 if (valuetype_types [1])
2274 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2275 interfaces [0] = valuetype_types [0];
2276 if (valuetype_types [1])
2277 interfaces [3] = valuetype_types [1];
2279 eclass_is_valuetype = TRUE;
2282 int idepth = eclass->idepth;
2283 if (!internal_enumerator)
2285 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2286 /* we add object for interfaces and the supertypes for the other
2287 * types. The last of the supertypes is the element class itself which we
2288 * already created the explicit interfaces for (so we include it for IEnumerator
2289 * and exclude it for arrays).
2291 if (MONO_CLASS_IS_INTERFACE (eclass))
2294 interface_count += idepth;
2295 if (eclass->rank && eclass->element_class->valuetype) {
2296 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2297 if (valuetype_types [1])
2300 /* IList, ICollection, IEnumerable */
2301 interface_count *= 3;
2302 real_count = interface_count;
2303 if (internal_enumerator) {
2304 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2305 if (valuetype_types [1])
2308 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2309 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2310 interfaces [0] = mono_defaults.object_class;
2314 for (i = 0; i < idepth; i++) {
2315 mono_class_init (eclass->supertypes [i]);
2316 interfaces [j] = eclass->supertypes [i];
2320 if (all_interfaces) {
2321 for (i = 0; i < eclass->interface_offsets_count; i++) {
2322 interfaces [j] = eclass->interfaces_packed [i];
2326 for (i = 0; i < eclass->interface_count; i++) {
2327 interfaces [j] = eclass->interfaces [i];
2331 if (valuetype_types [1]) {
2332 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2337 /* instantiate the generic interfaces */
2338 for (i = 0; i < interface_count; i += 3) {
2339 MonoClass *iface = interfaces [i];
2341 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2342 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2343 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2345 if (internal_enumerator) {
2347 /* instantiate IEnumerator<iface> */
2348 for (i = 0; i < interface_count; i++) {
2349 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2351 j = interface_count;
2352 if (!eclass_is_valuetype) {
2353 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2354 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2357 for (i = 0; i < eclass->idepth; i++) {
2358 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2362 for (i = 0; i < eclass->interface_offsets_count; i++) {
2363 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2367 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2369 if (valuetype_types [1])
2370 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2374 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2375 for (i = 0; i < real_count; ++i) {
2376 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2377 g_print ("%s implements %s\n", type_name, name);
2388 find_array_interface (MonoClass *klass, const char *name)
2391 for (i = 0; i < klass->interface_count; ++i) {
2392 if (strcmp (klass->interfaces [i]->name, name) == 0)
2399 * LOCKING: this is supposed to be called with the loader lock held.
2402 setup_interface_offsets (MonoClass *class, int cur_slot)
2406 MonoClass **interfaces_full;
2407 int *interface_offsets_full;
2409 int interface_offsets_count;
2410 MonoClass **array_interfaces;
2411 int num_array_interfaces;
2412 int is_enumerator = FALSE;
2415 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2416 * implicit interfaces have the property that they are assigned the same slot in the
2417 * vtables for compatible interfaces
2419 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2421 /* compute maximum number of slots and maximum interface id */
2423 for (k = class; k ; k = k->parent) {
2424 for (i = 0; i < k->interface_count; i++) {
2425 ic = k->interfaces [i];
2428 mono_class_init (ic);
2430 if (max_iid < ic->interface_id)
2431 max_iid = ic->interface_id;
2433 ifaces = mono_class_get_implemented_interfaces (k);
2435 for (i = 0; i < ifaces->len; ++i) {
2436 ic = g_ptr_array_index (ifaces, i);
2437 if (max_iid < ic->interface_id)
2438 max_iid = ic->interface_id;
2440 g_ptr_array_free (ifaces, TRUE);
2443 for (i = 0; i < num_array_interfaces; ++i) {
2444 ic = array_interfaces [i];
2445 mono_class_init (ic);
2446 if (max_iid < ic->interface_id)
2447 max_iid = ic->interface_id;
2450 if (MONO_CLASS_IS_INTERFACE (class)) {
2451 if (max_iid < class->interface_id)
2452 max_iid = class->interface_id;
2454 class->max_interface_id = max_iid;
2455 /* compute vtable offset for interfaces */
2456 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2457 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2459 for (i = 0; i <= max_iid; i++) {
2460 interfaces_full [i] = NULL;
2461 interface_offsets_full [i] = -1;
2464 ifaces = mono_class_get_implemented_interfaces (class);
2466 for (i = 0; i < ifaces->len; ++i) {
2467 ic = g_ptr_array_index (ifaces, i);
2468 interfaces_full [ic->interface_id] = ic;
2469 interface_offsets_full [ic->interface_id] = cur_slot;
2470 cur_slot += ic->method.count;
2472 g_ptr_array_free (ifaces, TRUE);
2475 for (k = class->parent; k ; k = k->parent) {
2476 ifaces = mono_class_get_implemented_interfaces (k);
2478 for (i = 0; i < ifaces->len; ++i) {
2479 ic = g_ptr_array_index (ifaces, i);
2481 if (interface_offsets_full [ic->interface_id] == -1) {
2482 int io = mono_class_interface_offset (k, ic);
2486 interfaces_full [ic->interface_id] = ic;
2487 interface_offsets_full [ic->interface_id] = io;
2490 g_ptr_array_free (ifaces, TRUE);
2494 if (MONO_CLASS_IS_INTERFACE (class)) {
2495 interfaces_full [class->interface_id] = class;
2496 interface_offsets_full [class->interface_id] = cur_slot;
2499 if (num_array_interfaces) {
2500 if (is_enumerator) {
2501 int ienumerator_offset;
2502 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
2503 ienumerator_offset = interface_offsets_full [class->interfaces [ienumerator_idx]->interface_id];
2504 for (i = 0; i < num_array_interfaces; ++i) {
2505 ic = array_interfaces [i];
2506 interfaces_full [ic->interface_id] = ic;
2507 if (strcmp (ic->name, "IEnumerator`1") == 0)
2508 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2510 g_assert_not_reached ();
2511 /*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);*/
2514 int ilist_offset, icollection_offset, ienumerable_offset;
2515 int ilist_iface_idx = find_array_interface (class, "IList`1");
2516 int icollection_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "ICollection`1");
2517 int ienumerable_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "IEnumerable`1");
2518 ilist_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interface_id];
2519 icollection_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [icollection_iface_idx]->interface_id];
2520 ienumerable_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [ienumerable_iface_idx]->interface_id];
2521 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2522 for (i = 0; i < num_array_interfaces; ++i) {
2523 ic = array_interfaces [i];
2524 interfaces_full [ic->interface_id] = ic;
2525 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2526 interface_offsets_full [ic->interface_id] = ilist_offset;
2527 else if (strcmp (ic->name, "ICollection`1") == 0)
2528 interface_offsets_full [ic->interface_id] = icollection_offset;
2529 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2530 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2532 g_assert_not_reached ();
2533 /*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);*/
2538 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2539 if (interface_offsets_full [i] != -1) {
2540 interface_offsets_count ++;
2545 * We might get called twice: once from mono_class_init () then once from
2546 * mono_class_setup_vtable ().
2548 if (class->interfaces_packed) {
2549 g_assert (class->interface_offsets_count == interface_offsets_count);
2551 class->interface_offsets_count = interface_offsets_count;
2552 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2553 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2554 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2555 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2556 if (interface_offsets_full [i] != -1) {
2557 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2558 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2559 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2560 /*if (num_array_interfaces)
2561 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]);*/
2562 interface_offsets_count ++;
2567 g_free (interfaces_full);
2568 g_free (interface_offsets_full);
2569 g_free (array_interfaces);
2571 //printf ("JUST DONE: ");
2572 //print_implemented_interfaces (class);
2578 * Setup interface offsets for interfaces. Used by Ref.Emit.
2581 mono_class_setup_interface_offsets (MonoClass *class)
2583 mono_loader_lock ();
2585 setup_interface_offsets (class, 0);
2587 mono_loader_unlock ();
2591 * mono_class_setup_vtable:
2593 * Creates the generic vtable of CLASS.
2594 * Initializes the following fields in MonoClass:
2597 * Plus all the fields initialized by setup_interface_offsets ().
2598 * If there is an error during vtable construction, class->exception_type is set.
2600 * LOCKING: Acquires the loader lock.
2603 mono_class_setup_vtable (MonoClass *class)
2605 MonoMethod **overrides;
2606 MonoGenericContext *context;
2615 if (mono_debug_using_mono_debugger ())
2616 /* The debugger currently depends on this */
2617 mono_class_setup_methods (class);
2619 if (MONO_CLASS_IS_INTERFACE (class)) {
2620 /* This sets method->slot for all methods if this is an interface */
2621 mono_class_setup_methods (class);
2625 mono_loader_lock ();
2627 if (class->vtable) {
2628 mono_loader_unlock ();
2632 mono_stats.generic_vtable_count ++;
2634 if (class->generic_class) {
2635 context = mono_class_get_context (class);
2636 type_token = class->generic_class->container_class->type_token;
2638 context = (MonoGenericContext *) class->generic_container;
2639 type_token = class->type_token;
2642 if (class->image->dynamic) {
2643 if (class->generic_class) {
2644 MonoClass *gklass = class->generic_class->container_class;
2646 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2647 for (i = 0; i < onum; ++i) {
2648 MonoMethod *override = overrides [(i * 2) + 1];
2649 MonoMethod *inflated = NULL;
2652 for (j = 0; j < class->method.count; ++j) {
2653 if (gklass->methods [j] == override) {
2654 inflated = class->methods [j];
2658 g_assert (inflated);
2660 overrides [(i * 2) + 1] = inflated;
2663 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2666 /* The following call fails if there are missing methods in the type */
2667 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2671 mono_class_setup_vtable_general (class, overrides, onum);
2675 mono_loader_unlock ();
2681 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2683 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2684 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2686 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL)
2687 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2691 #define DEBUG_INTERFACE_VTABLE_CODE 0
2692 #define TRACE_INTERFACE_VTABLE_CODE 0
2693 #define VERIFY_INTERFACE_VTABLE_CODE 0
2695 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2696 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2700 #define DEBUG_INTERFACE_VTABLE(stmt)
2703 #if TRACE_INTERFACE_VTABLE_CODE
2704 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2708 #define TRACE_INTERFACE_VTABLE(stmt)
2711 #if VERIFY_INTERFACE_VTABLE_CODE
2712 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
2716 #define VERIFY_INTERFACE_VTABLE(stmt)
2720 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2722 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2726 GString *res = g_string_new ("");
2728 g_string_append_c (res, '(');
2729 for (i = 0; i < sig->param_count; ++i) {
2731 g_string_append_c (res, ',');
2732 mono_type_get_desc (res, sig->params [i], include_namespace);
2734 g_string_append (res, ")=>");
2735 if (sig->ret != NULL) {
2736 mono_type_get_desc (res, sig->ret, include_namespace);
2738 g_string_append (res, "NULL");
2741 g_string_free (res, FALSE);
2745 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2746 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2747 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2748 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2756 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) {
2757 if (strcmp (im->name, cm->name) == 0) {
2758 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2759 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2762 if (! slot_is_empty) {
2763 if (require_newslot) {
2764 if (! interface_is_explicitly_implemented_by_class) {
2765 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2768 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2769 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2773 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2776 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2777 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2778 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2779 TRACE_INTERFACE_VTABLE (printf ("]"));
2782 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2783 /* CAS - SecurityAction.InheritanceDemand on interface */
2784 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2785 mono_secman_inheritancedemand_method (cm, im);
2788 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2789 check_core_clr_override_method (class, cm, im);
2790 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2793 MonoClass *ic = im->klass;
2794 const char *ic_name_space = ic->name_space;
2795 const char *ic_name = ic->name;
2798 if (! require_newslot) {
2799 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2802 if (cm->klass->rank == 0) {
2803 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2806 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2807 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2808 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2809 TRACE_INTERFACE_VTABLE (printf ("]"));
2812 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2813 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2816 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2817 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2820 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2821 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2825 subname = strstr (cm->name, ic_name_space);
2826 if (subname != cm->name) {
2827 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2830 subname += strlen (ic_name_space);
2831 if (subname [0] != '.') {
2832 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2836 if (strstr (subname, ic_name) != subname) {
2837 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2840 subname += strlen (ic_name);
2841 if (subname [0] != '.') {
2842 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2846 if (strcmp (subname, im->name) != 0) {
2847 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2851 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2852 /* CAS - SecurityAction.InheritanceDemand on interface */
2853 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2854 mono_secman_inheritancedemand_method (cm, im);
2857 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2858 check_core_clr_override_method (class, cm, im);
2860 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2865 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2867 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2868 MonoMethod *method = key;
2869 MonoMethod *override = value;
2870 MonoClass *method_class = mono_method_get_class (method);
2871 MonoClass *override_class = mono_method_get_class (override);
2873 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2874 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2875 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2878 print_overrides (GHashTable *override_map, const char *message) {
2880 printf ("Override map \"%s\" START:\n", message);
2881 g_hash_table_foreach (override_map, foreach_override, NULL);
2882 printf ("Override map \"%s\" END.\n", message);
2884 printf ("Override map \"%s\" EMPTY.\n", message);
2888 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2889 char *full_name = mono_type_full_name (&class->byval_arg);
2893 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2895 if (print_interfaces) {
2896 print_implemented_interfaces (class);
2897 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2900 if (class->parent) {
2901 parent_size = class->parent->vtable_size;
2905 for (i = 0; i < size; ++i) {
2906 MonoMethod *cm = vtable [i];
2908 char *cm_name = mono_method_full_name (cm, TRUE);
2909 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2910 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2919 #if VERIFY_INTERFACE_VTABLE_CODE
2921 mono_method_try_get_vtable_index (MonoMethod *method)
2923 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2924 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
2925 if (imethod->declaring->is_generic)
2926 return imethod->declaring->slot;
2928 return method->slot;
2932 mono_class_verify_vtable (MonoClass *class)
2935 char *full_name = mono_type_full_name (&class->byval_arg);
2937 printf ("*** Verifying VTable of class '%s' \n", full_name);
2941 if (!class->methods)
2944 for (i = 0; i < class->method.count; ++i) {
2945 MonoMethod *cm = class->methods [i];
2948 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2952 full_name = mono_method_full_name (cm, TRUE);
2954 slot = mono_method_try_get_vtable_index (cm);
2956 if (slot >= class->vtable_size) {
2957 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
2961 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot] && class->vtable [slot]->wrapper_type != MONO_WRAPPER_STATIC_RGCTX_INVOKE)) {
2962 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
2963 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
2964 g_free (other_name);
2967 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
2974 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
2976 char *method_signature;
2978 for (index = 0; index < onum; ++index) {
2979 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
2980 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
2982 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
2983 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2984 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
2985 g_free (method_signature);
2986 mono_class_setup_methods (class);
2987 for (index = 0; index < class->method.count; ++index) {
2988 MonoMethod *cm = class->methods [index];
2989 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2991 printf ("METHOD %s(%s)\n", cm->name, method_signature);
2992 g_free (method_signature);
2997 * LOCKING: this is supposed to be called with the loader lock held.
3000 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3003 MonoMethod **vtable;
3004 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3005 GPtrArray *ifaces = NULL;
3006 GHashTable *override_map = NULL;
3007 gboolean security_enabled = mono_is_security_manager_active ();
3009 gpointer class_iter;
3010 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3011 int first_non_interface_slot;
3017 ifaces = mono_class_get_implemented_interfaces (class);
3019 for (i = 0; i < ifaces->len; i++) {
3020 MonoClass *ic = g_ptr_array_index (ifaces, i);
3021 max_vtsize += ic->method.count;
3023 g_ptr_array_free (ifaces, TRUE);
3027 if (class->parent) {
3028 mono_class_init (class->parent);
3029 mono_class_setup_vtable (class->parent);
3030 max_vtsize += class->parent->vtable_size;
3031 cur_slot = class->parent->vtable_size;
3034 max_vtsize += class->method.count;
3036 vtable = alloca (sizeof (gpointer) * max_vtsize);
3037 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3039 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3041 cur_slot = setup_interface_offsets (class, cur_slot);
3042 max_iid = class->max_interface_id;
3043 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3045 /* Optimized version for generic instances */
3046 if (class->generic_class) {
3047 MonoClass *gklass = class->generic_class->container_class;
3048 gboolean usable = TRUE;
3050 mono_class_setup_vtable (gklass);
3051 for (i = 0; i < gklass->vtable_size; ++i)
3052 if (gklass->vtable [i] && gklass->vtable [i]->wrapper_type == MONO_WRAPPER_STATIC_RGCTX_INVOKE)
3056 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
3057 class->vtable_size = gklass->vtable_size;
3058 for (i = 0; i < gklass->vtable_size; ++i)
3059 if (gklass->vtable [i])
3060 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
3061 mono_memory_barrier ();
3062 class->vtable = tmp;
3064 /* Have to set method->slot for abstract virtual methods */
3065 if (class->methods && gklass->methods) {
3066 for (i = 0; i < class->method.count; ++i)
3067 if (class->methods [i]->slot == -1)
3068 class->methods [i]->slot = gklass->methods [i]->slot;
3075 if (class->parent && class->parent->vtable_size) {
3076 MonoClass *parent = class->parent;
3079 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3081 // Also inherit parent interface vtables, just as a starting point.
3082 // This is needed otherwise bug-77127.exe fails when the property methods
3083 // have different names in the iterface and the class, because for child
3084 // classes the ".override" information is not used anymore.
3085 for (i = 0; i < parent->interface_offsets_count; i++) {
3086 MonoClass *parent_interface = parent->interfaces_packed [i];
3087 int interface_offset = mono_class_interface_offset (class, parent_interface);
3089 if (interface_offset >= parent->vtable_size) {
3090 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3093 mono_class_setup_methods (parent_interface);
3094 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3095 for (j = 0; j < parent_interface->method.count; j++) {
3096 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3097 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3098 parent_interface_offset + j, parent_interface_offset, j,
3099 interface_offset + j, interface_offset, j));
3106 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3107 /* override interface methods */
3108 for (i = 0; i < onum; i++) {
3109 MonoMethod *decl = overrides [i*2];
3110 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3112 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
3113 vtable [dslot] = overrides [i*2 + 1];
3114 vtable [dslot]->slot = dslot;
3116 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3118 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3120 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3121 check_core_clr_override_method (class, vtable [dslot], decl);
3124 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3125 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3127 // Loop on all implemented interfaces...
3128 for (i = 0; i < class->interface_offsets_count; i++) {
3129 MonoClass *parent = class->parent;
3131 gboolean interface_is_explicitly_implemented_by_class;
3134 ic = class->interfaces_packed [i];
3135 ic_offset = mono_class_interface_offset (class, ic);
3137 mono_class_setup_methods (ic);
3139 // Check if this interface is explicitly implemented (instead of just inherited)
3140 if (parent != NULL) {
3141 int implemented_interfaces_index;
3142 interface_is_explicitly_implemented_by_class = FALSE;
3143 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3144 if (ic == class->interfaces [implemented_interfaces_index]) {
3145 interface_is_explicitly_implemented_by_class = TRUE;
3150 interface_is_explicitly_implemented_by_class = TRUE;
3153 // Loop on all interface methods...
3154 for (im_index = 0; im_index < ic->method.count; im_index++) {
3155 MonoMethod *im = ic->methods [im_index];
3156 int im_slot = ic_offset + im->slot;
3157 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3159 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3162 // If there is an explicit implementation, just use it right away,
3163 // otherwise look for a matching method
3164 if (override_im == NULL) {
3169 // First look for a suitable method among the class methods
3171 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3172 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)));
3173 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3174 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3175 vtable [im_slot] = cm;
3176 /* Why do we need this? */
3181 TRACE_INTERFACE_VTABLE (printf ("\n"));
3184 // If the slot is still empty, look in all the inherited virtual methods...
3185 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3186 MonoClass *parent = class->parent;
3187 // Reverse order, so that last added methods are preferred
3188 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3189 MonoMethod *cm = parent->vtable [cm_index];
3191 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));
3192 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3193 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3194 vtable [im_slot] = cm;
3195 /* Why do we need this? */
3201 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3205 g_assert (vtable [im_slot] == override_im);
3210 // If the class is not abstract, check that all its interface slots are full.
3211 // The check is done here and not directly at the end of the loop above because
3212 // it can happen (for injected generic array interfaces) that the same slot is
3213 // processed multiple times (those interfaces have overlapping slots), and it
3214 // will not always be the first pass the one that fills the slot.
3215 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3216 for (i = 0; i < class->interface_offsets_count; i++) {
3220 ic = class->interfaces_packed [i];
3221 ic_offset = mono_class_interface_offset (class, ic);
3223 for (im_index = 0; im_index < ic->method.count; im_index++) {
3224 MonoMethod *im = ic->methods [im_index];
3225 int im_slot = ic_offset + im->slot;
3227 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3230 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3231 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3232 if (vtable [im_slot] == NULL) {
3233 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3234 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3236 g_hash_table_destroy (override_map);
3243 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3245 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3247 * If the method is REUSE_SLOT, we must check in the
3248 * base class for a method to override.
3250 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3252 for (k = class->parent; k ; k = k->parent) {
3257 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3258 MonoMethodSignature *cmsig, *m1sig;
3260 cmsig = mono_method_signature (cm);
3261 m1sig = mono_method_signature (m1);
3263 if (!cmsig || !m1sig) {
3264 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3268 if (!strcmp(cm->name, m1->name) &&
3269 mono_metadata_signature_equal (cmsig, m1sig)) {
3271 /* CAS - SecurityAction.InheritanceDemand */
3272 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3273 mono_secman_inheritancedemand_method (cm, m1);
3276 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3277 check_core_clr_override_method (class, cm, m1);
3279 slot = mono_method_get_vtable_slot (m1);
3280 g_assert (cm->slot < max_vtsize);
3282 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3283 g_hash_table_insert (override_map, m1, cm);
3295 cm->slot = cur_slot++;
3297 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3298 vtable [cm->slot] = cm;
3301 /* override non interface methods */
3302 for (i = 0; i < onum; i++) {
3303 MonoMethod *decl = overrides [i*2];
3304 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3305 g_assert (decl->slot != -1);
3306 vtable [decl->slot] = overrides [i*2 + 1];
3307 overrides [i * 2 + 1]->slot = decl->slot;
3309 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3310 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3312 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3313 check_core_clr_override_method (class, vtable [decl->slot], decl);
3318 * If a method occupies more than one place in the vtable, and it is
3319 * overriden, then change the other occurances too.
3322 for (i = 0; i < max_vtsize; ++i)
3324 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3329 g_hash_table_destroy (override_map);
3332 if (class->generic_class) {
3333 MonoClass *gklass = class->generic_class->container_class;
3335 mono_class_init (gklass);
3337 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3339 /* Check that the vtable_size value computed in mono_class_init () is correct */
3340 if (class->vtable_size)
3341 g_assert (cur_slot == class->vtable_size);
3342 class->vtable_size = cur_slot;
3345 /* FIXME: only do this if the class is actually sharable */
3346 if (class->valuetype && (class->generic_class || class->generic_container) &&
3347 mono_class_generic_sharing_enabled (class)) {
3348 for (i = 0; i < max_vtsize; ++i) {
3349 if (vtable [i] && vtable [i]->wrapper_type == MONO_WRAPPER_NONE)
3350 vtable [i] = mono_marshal_get_static_rgctx_invoke (vtable [i]);
3354 /* Try to share the vtable with our parent. */
3355 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3356 mono_memory_barrier ();
3357 class->vtable = class->parent->vtable;
3359 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3360 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3361 mono_memory_barrier ();
3362 class->vtable = tmp;
3365 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3366 if (mono_print_vtable) {
3369 print_implemented_interfaces (class);
3371 for (i = 0; i <= max_iid; i++)
3372 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3375 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3376 class->vtable_size, icount);
3378 for (i = 0; i < class->vtable_size; ++i) {
3383 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3384 mono_method_full_name (cm, TRUE));
3390 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3391 class->name, max_iid);
3393 for (i = 0; i < class->interface_count; i++) {
3394 ic = class->interfaces [i];
3395 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3396 mono_class_interface_offset (class, ic),
3397 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3400 for (k = class->parent; k ; k = k->parent) {
3401 for (i = 0; i < k->interface_count; i++) {
3402 ic = k->interfaces [i];
3403 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3404 mono_class_interface_offset (class, ic),
3405 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3411 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
3415 * mono_method_get_vtable_slot:
3417 * Returns method->slot, computing it if neccesary.
3418 * LOCKING: Acquires the loader lock.
3421 mono_method_get_vtable_slot (MonoMethod *method)
3423 if (method->slot == -1) {
3424 mono_class_setup_vtable (method->klass);
3425 g_assert (method->slot != -1);
3427 return method->slot;
3431 * mono_method_get_vtable_index:
3434 * Returns the index into the runtime vtable to access the method or,
3435 * in the case of a virtual generic method, the virtual generic method
3439 mono_method_get_vtable_index (MonoMethod *method)
3441 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3442 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3443 if (imethod->declaring->is_generic)
3444 return mono_method_get_vtable_slot (imethod->declaring);
3446 return mono_method_get_vtable_slot (method);
3449 static MonoMethod *default_ghc = NULL;
3450 static MonoMethod *default_finalize = NULL;
3451 static int finalize_slot = -1;
3452 static int ghc_slot = -1;
3455 initialize_object_slots (MonoClass *class)
3460 if (class == mono_defaults.object_class) {
3461 mono_class_setup_vtable (class);
3462 for (i = 0; i < class->vtable_size; ++i) {
3463 MonoMethod *cm = class->vtable [i];
3465 if (!strcmp (cm->name, "GetHashCode"))
3467 else if (!strcmp (cm->name, "Finalize"))
3471 g_assert (ghc_slot > 0);
3472 default_ghc = class->vtable [ghc_slot];
3474 g_assert (finalize_slot > 0);
3475 default_finalize = class->vtable [finalize_slot];
3480 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
3482 GList* n = mono_mempool_alloc (mp, sizeof (GList));
3490 MonoMethod *array_method;
3492 } GenericArrayMethodInfo;
3494 static int generic_array_method_num = 0;
3495 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3498 generic_array_methods (MonoClass *class)
3500 int i, count_generic = 0;
3501 GList *list = NULL, *tmp;
3502 if (generic_array_method_num)
3503 return generic_array_method_num;
3504 mono_class_setup_methods (class->parent);
3505 for (i = 0; i < class->parent->method.count; i++) {
3506 MonoMethod *m = class->parent->methods [i];
3507 if (!strncmp (m->name, "InternalArray__", 15)) {
3509 list = g_list_prepend (list, m);
3512 list = g_list_reverse (list);
3513 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3515 for (tmp = list; tmp; tmp = tmp->next) {
3516 const char *mname, *iname;
3518 MonoMethod *m = tmp->data;
3519 generic_array_method_info [i].array_method = m;
3520 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3521 iname = "System.Collections.Generic.ICollection`1.";
3522 mname = m->name + 27;
3523 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3524 iname = "System.Collections.Generic.IEnumerable`1.";
3525 mname = m->name + 27;
3526 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3527 iname = "System.Collections.Generic.IList`1.";
3528 mname = m->name + 15;
3530 g_assert_not_reached ();
3533 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3534 strcpy (name, iname);
3535 strcpy (name + strlen (iname), mname);
3536 generic_array_method_info [i].name = name;
3539 /*g_print ("array generic methods: %d\n", count_generic);*/
3541 generic_array_method_num = count_generic;
3543 return generic_array_method_num;
3547 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3549 MonoGenericContext tmp_context;
3552 tmp_context.class_inst = NULL;
3553 tmp_context.method_inst = iface->generic_class->context.class_inst;
3554 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3556 for (i = 0; i < generic_array_method_num; i++) {
3557 MonoMethod *m = generic_array_method_info [i].array_method;
3558 MonoMethod *inflated;
3560 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3561 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3566 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3568 int len = strlen (s1) + strlen (s2) + 2;
3569 char *s = mono_image_alloc (image, len);
3572 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3573 g_assert (result == len - 1);
3579 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3581 gpointer exception_data = NULL;
3583 switch (error->exception_type) {
3584 case MONO_EXCEPTION_TYPE_LOAD:
3585 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3588 case MONO_EXCEPTION_MISSING_METHOD:
3589 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3592 case MONO_EXCEPTION_MISSING_FIELD: {
3593 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3594 const char *class_name;
3597 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3599 class_name = error->klass->name;
3601 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3604 g_free ((void*)class_name);
3608 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3611 if (error->ref_only)
3612 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.";
3614 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3616 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3620 case MONO_EXCEPTION_BAD_IMAGE:
3621 exception_data = error->msg;
3625 g_assert_not_reached ();
3628 mono_class_set_failure (class, error->exception_type, exception_data);
3632 check_core_clr_inheritance (MonoClass *class)
3634 MonoSecurityCoreCLRLevel class_level, parent_level;
3635 MonoClass *parent = class->parent;
3640 class_level = mono_security_core_clr_class_level (class);
3641 parent_level = mono_security_core_clr_class_level (parent);
3643 if (class_level < parent_level)
3644 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3649 * @class: the class to initialize
3651 * Compute the instance_size, class_size and other infos that cannot be
3652 * computed at mono_class_get() time. Also compute vtable_size if possible.
3653 * Returns TRUE on success or FALSE if there was a problem in loading
3654 * the type (incorrect assemblies, missing assemblies, methods, etc).
3656 * LOCKING: Acquires the loader lock.
3659 mono_class_init (MonoClass *class)
3662 MonoCachedClassInfo cached_info;
3663 gboolean has_cached_info;
3664 int class_init_ok = TRUE;
3668 /* Double-checking locking pattern */
3670 return class->exception_type == MONO_EXCEPTION_NONE;
3672 /*g_print ("Init class %s\n", class->name);*/
3674 /* We do everything inside the lock to prevent races */
3675 mono_loader_lock ();
3677 if (class->inited) {
3678 mono_loader_unlock ();
3679 /* Somebody might have gotten in before us */
3680 return class->exception_type == MONO_EXCEPTION_NONE;
3683 if (class->init_pending) {
3684 mono_loader_unlock ();
3685 /* this indicates a cyclic dependency */
3686 g_error ("pending init %s.%s\n", class->name_space, class->name);
3689 class->init_pending = 1;
3691 /* CAS - SecurityAction.InheritanceDemand */
3692 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3693 mono_secman_inheritancedemand_class (class, class->parent);
3696 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3697 check_core_clr_inheritance (class);
3699 mono_stats.initialized_class_count++;
3701 if (class->generic_class && !class->generic_class->is_dynamic) {
3702 MonoClass *gklass = class->generic_class->container_class;
3704 mono_stats.generic_class_count++;
3706 class->method = gklass->method;
3707 class->field = gklass->field;
3709 mono_class_init (gklass);
3710 // FIXME: Why is this needed ?
3711 mono_class_setup_methods (gklass);
3713 if (MONO_CLASS_IS_INTERFACE (class))
3714 class->interface_id = mono_get_unique_iid (class);
3716 g_assert (class->interface_count == gklass->interface_count);
3719 if (class->parent && !class->parent->inited)
3720 mono_class_init (class->parent);
3722 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3724 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3725 class->nested_classes_inited = TRUE;
3728 * Computes the size used by the fields, and their locations
3730 if (has_cached_info) {
3731 class->instance_size = cached_info.instance_size;
3732 class->sizes.class_size = cached_info.class_size;
3733 class->packing_size = cached_info.packing_size;
3734 class->min_align = cached_info.min_align;
3735 class->blittable = cached_info.blittable;
3736 class->has_references = cached_info.has_references;
3737 class->has_static_refs = cached_info.has_static_refs;
3738 class->no_special_static_fields = cached_info.no_special_static_fields;
3741 if (!class->size_inited){
3742 mono_class_setup_fields (class);
3743 if (class->exception_type || mono_loader_get_last_error ()){
3744 class_init_ok = FALSE;
3749 /* Initialize arrays */
3751 class->method.count = 3 + (class->rank > 1? 2: 1);
3753 if (class->interface_count) {
3754 int count_generic = generic_array_methods (class);
3755 class->method.count += class->interface_count * count_generic;
3759 mono_class_setup_supertypes (class);
3762 initialize_object_slots (class);
3765 * Initialize the rest of the data without creating a generic vtable if possible.
3766 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3767 * also avoid computing a generic vtable.
3769 if (has_cached_info) {
3771 class->vtable_size = cached_info.vtable_size;
3772 class->has_finalize = cached_info.has_finalize;
3773 class->ghcimpl = cached_info.ghcimpl;
3774 class->has_cctor = cached_info.has_cctor;
3775 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3776 static int szarray_vtable_size = 0;
3779 if (!szarray_vtable_size) {
3780 mono_class_setup_vtable (class);
3781 szarray_vtable_size = class->vtable_size;
3783 class->vtable_size = szarray_vtable_size;
3785 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3786 MonoClass *gklass = class->generic_class->container_class;
3788 /* Generic instance case */
3789 class->ghcimpl = gklass->ghcimpl;
3790 class->has_finalize = gklass->has_finalize;
3791 class->has_cctor = gklass->has_cctor;
3793 mono_class_setup_vtable (gklass);
3794 if (gklass->exception_type)
3797 class->vtable_size = gklass->vtable_size;
3801 /* ghcimpl is not currently used
3803 if (class->parent) {
3804 MonoMethod *cmethod = class->vtable [ghc_slot];
3805 if (cmethod->is_inflated)
3806 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3807 if (cmethod == default_ghc) {
3813 /* Interfaces and valuetypes are not supposed to have finalizers */
3814 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3815 MonoMethod *cmethod = NULL;
3817 if (class->parent && class->parent->has_finalize) {
3818 class->has_finalize = 1;
3820 if (class->type_token) {
3821 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3822 } else if (class->parent) {
3823 /* FIXME: Optimize this */
3824 mono_class_setup_vtable (class);
3825 if (class->exception_type || mono_loader_get_last_error ())
3827 cmethod = class->vtable [finalize_slot];
3831 /* Check that this is really the finalizer method */
3832 mono_class_setup_vtable (class);
3833 if (class->exception_type || mono_loader_get_last_error ())
3836 class->has_finalize = 0;
3837 if (class->parent) {
3838 cmethod = class->vtable [finalize_slot];
3839 if (cmethod->is_inflated)
3840 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3841 if (cmethod != default_finalize) {
3842 class->has_finalize = 1;
3849 /* C# doesn't allow interfaces to have cctors */
3850 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3851 MonoMethod *cmethod = NULL;
3853 if (class->type_token) {
3854 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3855 /* The find_method function ignores the 'flags' argument */
3856 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3857 class->has_cctor = 1;
3859 mono_class_setup_methods (class);
3861 for (i = 0; i < class->method.count; ++i) {
3862 MonoMethod *method = class->methods [i];
3863 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3864 (strcmp (".cctor", method->name) == 0)) {
3865 class->has_cctor = 1;
3873 if (!mono_setup_vtable_in_class_init) {
3875 * This is an embedding API break, since the caller might assume that
3876 * mono_class_init () constructs a generic vtable, so vtable construction errors
3877 * are visible right after the mono_class_init (), and not after
3878 * mono_class_vtable ().
3880 if (class->parent) {
3881 /* This will compute class->parent->vtable_size for some classes */
3882 mono_class_init (class->parent);
3883 if (class->parent->exception_type || mono_loader_get_last_error ())
3885 if (!class->parent->vtable_size) {
3886 /* FIXME: Get rid of this somehow */
3887 mono_class_setup_vtable (class->parent);
3888 if (class->parent->exception_type || mono_loader_get_last_error ())
3891 setup_interface_offsets (class, class->parent->vtable_size);
3893 setup_interface_offsets (class, 0);
3896 mono_class_setup_vtable (class);
3898 if (MONO_CLASS_IS_INTERFACE (class))
3899 setup_interface_offsets (class, 0);
3902 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3903 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
3904 class_init_ok = FALSE;
3910 class_init_ok = FALSE;
3913 /* Because of the double-checking locking pattern */
3914 mono_memory_barrier ();
3916 class->init_pending = 0;
3918 if (mono_loader_get_last_error ()) {
3919 if (class->exception_type == MONO_EXCEPTION_NONE)
3920 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3922 mono_loader_clear_error ();
3925 mono_loader_unlock ();
3927 if (mono_debugger_class_init_func)
3928 mono_debugger_class_init_func (class);
3930 return class_init_ok;
3934 is_corlib_image (MonoImage *image)
3936 /* FIXME: allow the dynamic case for our compilers and with full trust */
3938 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3940 return image == mono_defaults.corlib;
3944 * LOCKING: this assumes the loader lock is held
3947 mono_class_setup_mono_type (MonoClass *class)
3949 const char *name = class->name;
3950 const char *nspace = class->name_space;
3951 gboolean is_corlib = is_corlib_image (class->image);
3953 class->this_arg.byref = 1;
3954 class->this_arg.data.klass = class;
3955 class->this_arg.type = MONO_TYPE_CLASS;
3956 class->byval_arg.data.klass = class;
3957 class->byval_arg.type = MONO_TYPE_CLASS;
3959 if (is_corlib && !strcmp (nspace, "System")) {
3960 if (!strcmp (name, "ValueType")) {
3962 * do not set the valuetype bit for System.ValueType.
3963 * class->valuetype = 1;
3965 class->blittable = TRUE;
3966 } else if (!strcmp (name, "Enum")) {
3968 * do not set the valuetype bit for System.Enum.
3969 * class->valuetype = 1;
3971 class->valuetype = 0;
3972 class->enumtype = 0;
3973 } else if (!strcmp (name, "Object")) {
3974 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3975 } else if (!strcmp (name, "String")) {
3976 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3977 } else if (!strcmp (name, "TypedReference")) {
3978 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3982 if (class->valuetype) {
3983 int t = MONO_TYPE_VALUETYPE;
3985 if (is_corlib && !strcmp (nspace, "System")) {
3988 if (!strcmp (name, "Boolean")) {
3989 t = MONO_TYPE_BOOLEAN;
3990 } else if (!strcmp(name, "Byte")) {
3992 class->blittable = TRUE;
3996 if (!strcmp (name, "Char")) {
4001 if (!strcmp (name, "Double")) {
4003 class->blittable = TRUE;
4007 if (!strcmp (name, "Int32")) {
4009 class->blittable = TRUE;
4010 } else if (!strcmp(name, "Int16")) {
4012 class->blittable = TRUE;
4013 } else if (!strcmp(name, "Int64")) {
4015 class->blittable = TRUE;
4016 } else if (!strcmp(name, "IntPtr")) {
4018 class->blittable = TRUE;
4022 if (!strcmp (name, "Single")) {
4024 class->blittable = TRUE;
4025 } else if (!strcmp(name, "SByte")) {
4027 class->blittable = TRUE;
4031 if (!strcmp (name, "UInt32")) {
4033 class->blittable = TRUE;
4034 } else if (!strcmp(name, "UInt16")) {
4036 class->blittable = TRUE;
4037 } else if (!strcmp(name, "UInt64")) {
4039 class->blittable = TRUE;
4040 } else if (!strcmp(name, "UIntPtr")) {
4042 class->blittable = TRUE;
4046 if (!strcmp (name, "TypedReference")) {
4047 t = MONO_TYPE_TYPEDBYREF;
4048 class->blittable = TRUE;
4052 if (!strcmp (name, "Void")) {
4060 class->this_arg.type = class->byval_arg.type = t;
4063 if (MONO_CLASS_IS_INTERFACE (class))
4064 class->interface_id = mono_get_unique_iid (class);
4069 * LOCKING: this assumes the loader lock is held
4072 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4074 gboolean system_namespace;
4075 gboolean is_corlib = is_corlib_image (class->image);
4077 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4079 /* if root of the hierarchy */
4080 if (system_namespace && !strcmp (class->name, "Object")) {
4081 class->parent = NULL;
4082 class->instance_size = sizeof (MonoObject);
4085 if (!strcmp (class->name, "<Module>")) {
4086 class->parent = NULL;
4087 class->instance_size = 0;
4091 if (!MONO_CLASS_IS_INTERFACE (class)) {
4092 /* Imported COM Objects always derive from __ComObject. */
4093 if (MONO_CLASS_IS_IMPORT (class)) {
4094 mono_init_com_types ();
4095 if (parent == mono_defaults.object_class)
4096 parent = mono_defaults.com_object_class;
4099 /* set the parent to something useful and safe, but mark the type as broken */
4100 parent = mono_defaults.object_class;
4101 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4104 class->parent = parent;
4106 if (parent->generic_class && !parent->name) {
4108 * If the parent is a generic instance, we may get
4109 * called before it is fully initialized, especially
4110 * before it has its name.
4115 class->marshalbyref = parent->marshalbyref;
4116 class->contextbound = parent->contextbound;
4117 class->delegate = parent->delegate;
4118 if (MONO_CLASS_IS_IMPORT (class))
4119 class->is_com_object = 1;
4121 class->is_com_object = parent->is_com_object;
4123 if (system_namespace) {
4124 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4125 class->marshalbyref = 1;
4127 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4128 class->contextbound = 1;
4130 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4131 class->delegate = 1;
4134 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4135 (strcmp (class->parent->name_space, "System") == 0)))
4136 class->valuetype = 1;
4137 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4138 class->valuetype = class->enumtype = 1;
4140 /*class->enumtype = class->parent->enumtype; */
4141 mono_class_setup_supertypes (class);
4143 /* initialize com types if COM interfaces are present */
4144 if (MONO_CLASS_IS_IMPORT (class))
4145 mono_init_com_types ();
4146 class->parent = NULL;
4152 * mono_class_setup_supertypes:
4155 * Build the data structure needed to make fast type checks work.
4156 * This currently sets two fields in @class:
4157 * - idepth: distance between @class and System.Object in the type
4159 * - supertypes: array of classes: each element has a class in the hierarchy
4160 * starting from @class up to System.Object
4162 * LOCKING: this assumes the loader lock is held
4165 mono_class_setup_supertypes (MonoClass *class)
4169 if (class->supertypes)
4172 if (class->parent && !class->parent->supertypes)
4173 mono_class_setup_supertypes (class->parent);
4175 class->idepth = class->parent->idepth + 1;
4179 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4180 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4182 if (class->parent) {
4183 class->supertypes [class->idepth - 1] = class;
4184 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4186 class->supertypes [0] = class;
4191 * mono_class_create_from_typedef:
4192 * @image: image where the token is valid
4193 * @type_token: typedef token
4195 * Create the MonoClass* representing the specified type token.
4196 * @type_token must be a TypeDef token.
4199 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4201 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4202 MonoClass *class, *parent = NULL;
4203 guint32 cols [MONO_TYPEDEF_SIZE];
4204 guint32 cols_next [MONO_TYPEDEF_SIZE];
4205 guint tidx = mono_metadata_token_index (type_token);
4206 MonoGenericContext *context = NULL;
4207 const char *name, *nspace;
4209 MonoClass **interfaces;
4210 guint32 field_last, method_last;
4211 guint32 nesting_tokeen;
4213 mono_loader_lock ();
4215 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4216 mono_loader_unlock ();
4220 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4222 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4224 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4225 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4227 class = mono_image_alloc0 (image, sizeof (MonoClass));
4230 class->name_space = nspace;
4232 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4234 class->image = image;
4235 class->type_token = type_token;
4236 class->flags = cols [MONO_TYPEDEF_FLAGS];
4238 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4241 * Check whether we're a generic type definition.
4243 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4244 if (class->generic_container) {
4245 class->is_generic = 1;
4246 class->generic_container->owner.klass = class;
4247 context = &class->generic_container->context;
4250 if (cols [MONO_TYPEDEF_EXTENDS]) {
4251 parent = mono_class_get_full (
4252 image, mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]), context);
4253 if (parent == NULL){
4254 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4255 mono_loader_unlock ();
4256 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4261 /* do this early so it's available for interfaces in setup_mono_type () */
4262 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4263 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4265 mono_class_setup_parent (class, parent);
4267 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4268 mono_class_setup_mono_type (class);
4270 if (!class->enumtype) {
4271 if (!mono_metadata_interfaces_from_typedef_full (
4272 image, type_token, &interfaces, &icount, context)){
4273 mono_loader_unlock ();
4274 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4278 class->interfaces = interfaces;
4279 class->interface_count = icount;
4282 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4286 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4290 class->cast_class = class->element_class = class;
4292 /*g_print ("Load class %s\n", name);*/
4295 * Compute the field and method lists
4297 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4298 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4300 if (tt->rows > tidx){
4301 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4302 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4303 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4305 field_last = image->tables [MONO_TABLE_FIELD].rows;
4306 method_last = image->tables [MONO_TABLE_METHOD].rows;
4309 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4310 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4311 class->field.count = field_last - class->field.first;
4313 class->field.count = 0;
4315 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4316 class->method.count = method_last - class->method.first;
4318 class->method.count = 0;
4320 /* reserve space to store vector pointer in arrays */
4321 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4322 class->instance_size += 2 * sizeof (gpointer);
4323 g_assert (class->field.count == 0);
4326 if (class->enumtype) {
4327 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
4328 if (!enum_basetype) {
4329 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4330 mono_loader_unlock ();
4333 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
4337 * If we're a generic type definition, load the constraints.
4338 * We must do this after the class has been constructed to make certain recursive scenarios
4341 if (class->generic_container)
4342 mono_metadata_load_generic_param_constraints (
4343 image, type_token, class->generic_container);
4345 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4346 if (!strncmp (name, "Vector", 6))
4347 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");
4350 mono_loader_unlock ();
4352 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4357 /** is klass Nullable<T>? */
4359 mono_class_is_nullable (MonoClass *klass)
4361 return klass->generic_class != NULL &&
4362 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4366 /** if klass is T? return T */
4368 mono_class_get_nullable_param (MonoClass *klass)
4370 g_assert (mono_class_is_nullable (klass));
4371 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4375 * Create the `MonoClass' for an instantiation of a generic type.
4376 * We only do this if we actually need it.
4379 mono_generic_class_get_class (MonoGenericClass *gclass)
4381 MonoClass *klass, *gklass;
4384 mono_loader_lock ();
4385 if (gclass->cached_class) {
4386 mono_loader_unlock ();
4387 return gclass->cached_class;
4390 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4391 klass = gclass->cached_class;
4393 gklass = gclass->container_class;
4395 if (gklass->nested_in) {
4397 * FIXME: the nested type context should include everything the
4398 * nesting context should have, but it may also have additional
4399 * generic parameters...
4401 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
4402 mono_generic_class_get_context (gclass));
4405 klass->name = gklass->name;
4406 klass->name_space = gklass->name_space;
4408 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4410 klass->image = gklass->image;
4411 klass->flags = gklass->flags;
4412 klass->type_token = gklass->type_token;
4413 klass->field.count = gklass->field.count;
4414 klass->property.count = gklass->property.count;
4416 klass->is_inflated = 1;
4417 klass->generic_class = gclass;
4419 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4420 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4421 klass->this_arg.byref = TRUE;
4422 klass->enumtype = gklass->enumtype;
4423 klass->valuetype = gklass->valuetype;
4425 klass->cast_class = klass->element_class = klass;
4427 if (mono_class_is_nullable (klass))
4428 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4430 klass->interface_count = gklass->interface_count;
4431 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
4432 for (i = 0; i < klass->interface_count; i++) {
4433 klass->interfaces [i] = mono_class_inflate_generic_class (gklass->interfaces [i], mono_generic_class_get_context (gclass));
4437 * We're not interested in the nested classes of a generic instance.
4438 * We use the generic type definition to look for nested classes.
4440 klass->nested_classes = NULL;
4442 if (gklass->parent) {
4443 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
4447 mono_class_setup_parent (klass, klass->parent);
4449 if (klass->enumtype) {
4450 klass->cast_class = gklass->cast_class;
4451 klass->element_class = gklass->element_class;
4454 if (gclass->is_dynamic) {
4457 mono_class_setup_supertypes (klass);
4459 if (klass->enumtype) {
4461 * For enums, gklass->fields might not been set, but instance_size etc. is
4462 * already set in mono_reflection_create_internal_class (). For non-enums,
4463 * these will be computed normally in mono_class_layout_fields ().
4465 klass->instance_size = gklass->instance_size;
4466 klass->sizes.class_size = gklass->sizes.class_size;
4467 klass->size_inited = 1;
4471 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4473 inflated_classes_size += sizeof (MonoClass);
4475 mono_loader_unlock ();
4481 * LOCKING: Acquires the loader lock.
4484 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4486 MonoClass *klass, **ptr;
4489 mono_loader_lock ();
4491 if (param->pklass) {
4492 mono_loader_unlock ();
4493 return param->pklass;
4496 if (!image && param->owner) {
4498 MonoMethod *method = param->owner->owner.method;
4499 image = (method && method->klass) ? method->klass->image : NULL;
4501 MonoClass *klass = param->owner->owner.klass;
4502 // FIXME: 'klass' should not be null
4503 // But, monodis creates GenericContainers without associating a owner to it
4504 image = klass ? klass->image : NULL;
4509 image = mono_defaults.corlib;
4511 klass = mono_image_alloc0 (image, sizeof (MonoClass));
4514 klass->name = param->name;
4516 klass->name = mono_image_alloc0 (image, 16);
4517 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4519 klass->name_space = "";
4520 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4522 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4526 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4527 klass->parent = param->constraints [0];
4529 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4530 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4532 klass->parent = mono_defaults.object_class;
4534 if (count - pos > 0) {
4535 klass->interface_count = count - pos;
4536 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4537 for (i = pos; i < count; i++)
4538 klass->interfaces [i - pos] = param->constraints [i];
4542 image = mono_defaults.corlib;
4544 klass->image = image;
4546 klass->inited = TRUE;
4547 klass->cast_class = klass->element_class = klass;
4548 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4550 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4551 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4552 klass->this_arg.byref = TRUE;
4556 guint32 cols [MONO_GENERICPARAM_SIZE];
4557 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4560 if (is_mvar && param->owner->owner.method)
4561 i = mono_metadata_get_generic_param_row (image, param->owner->owner.method->token, &owner);
4562 else if (!is_mvar && param->owner->owner.klass)
4563 i = mono_metadata_get_generic_param_row (image, param->owner->owner.klass->type_token, &owner);
4566 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4568 if (cols [MONO_GENERICPARAM_NUMBER] == param->num) {
4569 klass->sizes.generic_param_token = i | MONO_TOKEN_GENERIC_PARAM;
4572 if (++i > tdef->rows)
4574 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4575 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4579 mono_class_setup_supertypes (klass);
4581 mono_memory_barrier ();
4583 param->pklass = klass;
4585 mono_loader_unlock ();
4587 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4593 mono_ptr_class_get (MonoType *type)
4596 MonoClass *el_class;
4600 el_class = mono_class_from_mono_type (type);
4601 image = el_class->image;
4603 mono_loader_lock ();
4605 if (!image->ptr_cache)
4606 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4608 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4609 mono_loader_unlock ();
4612 result = mono_image_alloc0 (image, sizeof (MonoClass));
4614 result->parent = NULL; /* no parent for PTR types */
4615 result->name_space = el_class->name_space;
4616 name = g_strdup_printf ("%s*", el_class->name);
4617 result->name = mono_image_strdup (image, name);
4620 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4622 result->image = el_class->image;
4623 result->inited = TRUE;
4624 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4625 /* Can pointers get boxed? */
4626 result->instance_size = sizeof (gpointer);
4627 result->cast_class = result->element_class = el_class;
4628 result->blittable = TRUE;
4630 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4631 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
4632 result->this_arg.byref = TRUE;
4634 mono_class_setup_supertypes (result);
4636 g_hash_table_insert (image->ptr_cache, el_class, result);
4638 mono_loader_unlock ();
4640 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4646 mono_fnptr_class_get (MonoMethodSignature *sig)
4649 static GHashTable *ptr_hash = NULL;
4651 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4653 mono_loader_lock ();
4656 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4658 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4659 mono_loader_unlock ();
4662 result = g_new0 (MonoClass, 1);
4664 result->parent = NULL; /* no parent for PTR types */
4665 result->name_space = "System";
4666 result->name = "MonoFNPtrFakeClass";
4668 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4670 result->image = mono_defaults.corlib; /* need to fix... */
4671 result->inited = TRUE;
4672 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4673 /* Can pointers get boxed? */
4674 result->instance_size = sizeof (gpointer);
4675 result->cast_class = result->element_class = result;
4676 result->blittable = TRUE;
4678 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4679 result->this_arg.data.method = result->byval_arg.data.method = sig;
4680 result->this_arg.byref = TRUE;
4681 result->blittable = TRUE;
4683 mono_class_setup_supertypes (result);
4685 g_hash_table_insert (ptr_hash, sig, result);
4687 mono_loader_unlock ();
4689 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4695 mono_class_from_mono_type (MonoType *type)
4697 switch (type->type) {
4698 case MONO_TYPE_OBJECT:
4699 return type->data.klass? type->data.klass: mono_defaults.object_class;
4700 case MONO_TYPE_VOID:
4701 return type->data.klass? type->data.klass: mono_defaults.void_class;
4702 case MONO_TYPE_BOOLEAN:
4703 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4704 case MONO_TYPE_CHAR:
4705 return type->data.klass? type->data.klass: mono_defaults.char_class;
4707 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4709 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4711 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4713 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4715 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4717 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4719 return type->data.klass? type->data.klass: mono_defaults.int_class;
4721 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4723 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4725 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4727 return type->data.klass? type->data.klass: mono_defaults.single_class;
4729 return type->data.klass? type->data.klass: mono_defaults.double_class;
4730 case MONO_TYPE_STRING:
4731 return type->data.klass? type->data.klass: mono_defaults.string_class;
4732 case MONO_TYPE_TYPEDBYREF:
4733 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4734 case MONO_TYPE_ARRAY:
4735 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4737 return mono_ptr_class_get (type->data.type);
4738 case MONO_TYPE_FNPTR:
4739 return mono_fnptr_class_get (type->data.method);
4740 case MONO_TYPE_SZARRAY:
4741 return mono_array_class_get (type->data.klass, 1);
4742 case MONO_TYPE_CLASS:
4743 case MONO_TYPE_VALUETYPE:
4744 return type->data.klass;
4745 case MONO_TYPE_GENERICINST:
4746 return mono_generic_class_get_class (type->data.generic_class);
4748 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4749 case MONO_TYPE_MVAR:
4750 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4752 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4753 g_assert_not_reached ();
4760 * mono_type_retrieve_from_typespec
4761 * @image: context where the image is created
4762 * @type_spec: typespec token
4763 * @context: the generic context used to evaluate generic instantiations in
4766 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4768 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4771 if (context && (context->class_inst || context->method_inst)) {
4772 MonoType *inflated = inflate_generic_type (NULL, t, context);
4775 *did_inflate = TRUE;
4782 * mono_class_create_from_typespec
4783 * @image: context where the image is created
4784 * @type_spec: typespec token
4785 * @context: the generic context used to evaluate generic instantiations in
4788 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4791 gboolean inflated = FALSE;
4792 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4795 ret = mono_class_from_mono_type (t);
4797 mono_metadata_free_type (t);
4802 * mono_bounded_array_class_get:
4803 * @element_class: element class
4804 * @rank: the dimension of the array class
4805 * @bounded: whenever the array has non-zero bounds
4807 * Returns: a class object describing the array with element type @element_type and
4811 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4815 MonoClass *parent = NULL;
4816 GSList *list, *rootlist;
4819 gboolean corlib_type = FALSE;
4821 g_assert (rank <= 255);
4824 /* bounded only matters for one-dimensional arrays */
4827 image = eclass->image;
4829 mono_loader_lock ();
4831 if (!image->array_cache)
4832 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4834 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4835 for (; list; list = list->next) {
4837 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4838 mono_loader_unlock ();
4844 /* for the building corlib use System.Array from it */
4845 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4846 parent = mono_class_from_name (image, "System", "Array");
4849 parent = mono_defaults.array_class;
4850 if (!parent->inited)
4851 mono_class_init (parent);
4854 class = mono_image_alloc0 (image, sizeof (MonoClass));
4856 class->image = image;
4857 class->name_space = eclass->name_space;
4858 nsize = strlen (eclass->name);
4859 name = g_malloc (nsize + 2 + rank + 1);
4860 memcpy (name, eclass->name, nsize);
4863 memset (name + nsize + 1, ',', rank - 1);
4865 name [nsize + rank] = '*';
4866 name [nsize + rank + bounded] = ']';
4867 name [nsize + rank + bounded + 1] = 0;
4868 class->name = mono_image_strdup (image, name);
4871 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4873 class->type_token = 0;
4874 /* all arrays are marked serializable and sealed, bug #42779 */
4875 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4876 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4877 class->parent = parent;
4878 class->instance_size = mono_class_instance_size (class->parent);
4880 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
4881 if (!eclass->reflection_info || eclass->wastypebuilder) {
4882 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4883 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4885 /* element_size -1 is ok as this is not an instantitable type*/
4886 class->sizes.element_size = -1;
4888 class->sizes.element_size = mono_class_array_element_size (eclass);
4890 mono_class_setup_supertypes (class);
4892 if (mono_defaults.generic_ilist_class && !bounded && rank == 1) {
4895 /* generic IList, ICollection, IEnumerable */
4896 class->interface_count = 1;
4897 class->interfaces = mono_image_alloc0 (image, sizeof (MonoClass*) * class->interface_count);
4899 args [0] = &eclass->byval_arg;
4900 class->interfaces [0] = mono_class_bind_generic_parameters (
4901 mono_defaults.generic_ilist_class, 1, args, FALSE);
4904 if (eclass->generic_class)
4905 mono_class_init (eclass);
4906 if (!eclass->size_inited)
4907 mono_class_setup_fields (eclass);
4908 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4912 if (eclass->enumtype)
4913 class->cast_class = eclass->element_class;
4915 class->cast_class = eclass;
4917 class->element_class = eclass;
4919 if ((rank > 1) || bounded) {
4920 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
4921 class->byval_arg.type = MONO_TYPE_ARRAY;
4922 class->byval_arg.data.array = at;
4923 at->eklass = eclass;
4925 /* FIXME: complete.... */
4927 class->byval_arg.type = MONO_TYPE_SZARRAY;
4928 class->byval_arg.data.klass = eclass;
4930 class->this_arg = class->byval_arg;
4931 class->this_arg.byref = 1;
4936 class->generic_container = eclass->generic_container;
4938 list = g_slist_append (rootlist, class);
4939 g_hash_table_insert (image->array_cache, eclass, list);
4941 mono_loader_unlock ();
4943 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4949 * mono_array_class_get:
4950 * @element_class: element class
4951 * @rank: the dimension of the array class
4953 * Returns: a class object describing the array with element type @element_type and
4957 mono_array_class_get (MonoClass *eclass, guint32 rank)
4959 return mono_bounded_array_class_get (eclass, rank, FALSE);
4963 * mono_class_instance_size:
4966 * Returns: the size of an object instance
4969 mono_class_instance_size (MonoClass *klass)
4971 if (!klass->size_inited)
4972 mono_class_init (klass);
4974 return klass->instance_size;
4978 * mono_class_min_align:
4981 * Returns: minimm alignment requirements
4984 mono_class_min_align (MonoClass *klass)
4986 if (!klass->size_inited)
4987 mono_class_init (klass);
4989 return klass->min_align;
4993 * mono_class_value_size:
4996 * This function is used for value types, and return the
4997 * space and the alignment to store that kind of value object.
4999 * Returns: the size of a value of kind @klass
5002 mono_class_value_size (MonoClass *klass, guint32 *align)
5006 /* fixme: check disable, because we still have external revereces to
5007 * mscorlib and Dummy Objects
5009 /*g_assert (klass->valuetype);*/
5011 size = mono_class_instance_size (klass) - sizeof (MonoObject);
5014 *align = klass->min_align;
5020 * mono_class_data_size:
5023 * Returns: the size of the static class data
5026 mono_class_data_size (MonoClass *klass)
5029 mono_class_init (klass);
5031 /* in arrays, sizes.class_size is unioned with element_size
5032 * and arrays have no static fields
5036 return klass->sizes.class_size;
5040 * Auxiliary routine to mono_class_get_field
5042 * Takes a field index instead of a field token.
5044 static MonoClassField *
5045 mono_class_get_field_idx (MonoClass *class, int idx)
5047 mono_class_setup_fields_locking (class);
5050 if (class->image->uncompressed_metadata) {
5052 * class->field.first points to the FieldPtr table, while idx points into the
5053 * Field table, so we have to do a search.
5055 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
5058 for (i = 0; i < class->field.count; ++i)
5059 if (mono_field_get_name (&class->fields [i]) == name)
5060 return &class->fields [i];
5061 g_assert_not_reached ();
5063 if (class->field.count) {
5064 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
5065 return &class->fields [idx - class->field.first];
5069 class = class->parent;
5075 * mono_class_get_field:
5076 * @class: the class to lookup the field.
5077 * @field_token: the field token
5079 * Returns: A MonoClassField representing the type and offset of
5080 * the field, or a NULL value if the field does not belong to this
5084 mono_class_get_field (MonoClass *class, guint32 field_token)
5086 int idx = mono_metadata_token_index (field_token);
5088 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5090 return mono_class_get_field_idx (class, idx - 1);
5094 * mono_class_get_field_from_name:
5095 * @klass: the class to lookup the field.
5096 * @name: the field name
5098 * Search the class @klass and it's parents for a field with the name @name.
5100 * Returns: the MonoClassField pointer of the named field or NULL
5103 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5107 mono_class_setup_fields_locking (klass);
5109 for (i = 0; i < klass->field.count; ++i) {
5110 if (strcmp (name, mono_field_get_name (&klass->fields [i])) == 0)
5111 return &klass->fields [i];
5113 klass = klass->parent;
5119 * mono_class_get_field_token:
5120 * @field: the field we need the token of
5122 * Get the token of a field. Note that the tokesn is only valid for the image
5123 * the field was loaded from. Don't use this function for fields in dynamic types.
5125 * Returns: the token representing the field in the image it was loaded from.
5128 mono_class_get_field_token (MonoClassField *field)
5130 MonoClass *klass = field->parent;
5133 mono_class_setup_fields_locking (klass);
5135 for (i = 0; i < klass->field.count; ++i) {
5136 if (&klass->fields [i] == field) {
5137 int idx = klass->field.first + i + 1;
5139 if (klass->image->uncompressed_metadata)
5140 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5141 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5144 klass = klass->parent;
5147 g_assert_not_reached ();
5152 mono_field_get_index (MonoClassField *field)
5154 int index = field - field->parent->fields;
5156 g_assert (index >= 0 && index < field->parent->field.count);
5162 * mono_class_get_field_default_value:
5164 * Return the default value of the field as a pointer into the metadata blob.
5167 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5170 guint32 constant_cols [MONO_CONSTANT_SIZE];
5172 MonoClass *klass = field->parent;
5174 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5176 if (!klass->field_def_values) {
5177 mono_loader_lock ();
5178 if (!klass->field_def_values)
5179 klass->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5180 mono_loader_unlock ();
5183 field_index = mono_field_get_index (field);
5185 if (!klass->field_def_values [field_index].data) {
5186 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5188 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5190 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5191 klass->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5192 klass->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5195 *def_type = klass->field_def_values [field_index].def_type;
5196 return klass->field_def_values [field_index].data;
5200 mono_class_get_event_token (MonoEvent *event)
5202 MonoClass *klass = event->parent;
5206 for (i = 0; i < klass->event.count; ++i) {
5207 if (&klass->events [i] == event)
5208 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->event.first + i + 1);
5210 klass = klass->parent;
5213 g_assert_not_reached ();
5218 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5222 gpointer iter = NULL;
5223 while ((p = mono_class_get_properties (klass, &iter))) {
5224 if (! strcmp (name, p->name))
5227 klass = klass->parent;
5233 mono_class_get_property_token (MonoProperty *prop)
5235 MonoClass *klass = prop->parent;
5239 gpointer iter = NULL;
5240 while ((p = mono_class_get_properties (klass, &iter))) {
5241 if (&klass->properties [i] == prop)
5242 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->property.first + i + 1);
5246 klass = klass->parent;
5249 g_assert_not_reached ();
5254 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5256 const char *name, *nspace;
5258 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5260 switch (type_token & 0xff000000){
5261 case MONO_TOKEN_TYPE_DEF: {
5262 guint32 cols [MONO_TYPEDEF_SIZE];
5263 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5264 guint tidx = mono_metadata_token_index (type_token);
5266 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5267 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5268 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5269 if (strlen (nspace) == 0)
5270 return g_strdup_printf ("%s", name);
5272 return g_strdup_printf ("%s.%s", nspace, name);
5275 case MONO_TOKEN_TYPE_REF: {
5276 guint32 cols [MONO_TYPEREF_SIZE];
5277 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5279 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5280 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5281 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5282 if (strlen (nspace) == 0)
5283 return g_strdup_printf ("%s", name);
5285 return g_strdup_printf ("%s.%s", nspace, name);
5288 case MONO_TOKEN_TYPE_SPEC:
5289 return g_strdup_printf ("Typespec 0x%08x", type_token);
5291 g_assert_not_reached ();
5298 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5301 return g_strdup_printf ("DynamicAssembly %s", image->name);
5303 switch (type_token & 0xff000000){
5304 case MONO_TOKEN_TYPE_DEF:
5305 return mono_stringify_assembly_name (&image->assembly->aname);
5307 case MONO_TOKEN_TYPE_REF: {
5308 MonoAssemblyName aname;
5309 guint32 cols [MONO_TYPEREF_SIZE];
5310 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5313 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5315 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5316 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5317 case MONO_RESOLTION_SCOPE_MODULE:
5319 return g_strdup ("");
5320 case MONO_RESOLTION_SCOPE_MODULEREF:
5322 return g_strdup ("");
5323 case MONO_RESOLTION_SCOPE_TYPEREF:
5325 return g_strdup ("");
5326 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5327 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5328 return mono_stringify_assembly_name (&aname);
5330 g_assert_not_reached ();
5334 case MONO_TOKEN_TYPE_SPEC:
5336 return g_strdup ("");
5338 g_assert_not_reached ();
5345 * mono_class_get_full:
5346 * @image: the image where the class resides
5347 * @type_token: the token for the class
5348 * @context: the generic context used to evaluate generic instantiations in
5350 * Returns: the MonoClass that represents @type_token in @image
5353 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5355 MonoClass *class = NULL;
5357 if (image->dynamic) {
5358 int table = mono_metadata_token_table (type_token);
5360 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5361 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5364 return mono_lookup_dynamic_token (image, type_token, context);
5367 switch (type_token & 0xff000000){
5368 case MONO_TOKEN_TYPE_DEF:
5369 class = mono_class_create_from_typedef (image, type_token);
5371 case MONO_TOKEN_TYPE_REF:
5372 class = mono_class_from_typeref (image, type_token);
5374 case MONO_TOKEN_TYPE_SPEC:
5375 class = mono_class_create_from_typespec (image, type_token, context);
5378 g_warning ("unknown token type %x", type_token & 0xff000000);
5379 g_assert_not_reached ();
5383 char *name = mono_class_name_from_token (image, type_token);
5384 char *assembly = mono_assembly_name_from_token (image, type_token);
5385 mono_loader_set_error_type_load (name, assembly);
5393 * mono_type_get_full:
5394 * @image: the image where the type resides
5395 * @type_token: the token for the type
5396 * @context: the generic context used to evaluate generic instantiations in
5398 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5400 * Returns: the MonoType that represents @type_token in @image
5403 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5405 MonoType *type = NULL;
5406 gboolean inflated = FALSE;
5408 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5410 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5412 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5413 MonoClass *class = mono_class_get_full (image, type_token, context);
5414 return class ? mono_class_get_type (class) : NULL;
5417 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5420 char *name = mono_class_name_from_token (image, type_token);
5421 char *assembly = mono_assembly_name_from_token (image, type_token);
5423 mono_metadata_free_type (type);
5424 mono_loader_set_error_type_load (name, assembly);
5428 MonoType *tmp = type;
5429 type = mono_class_get_type (mono_class_from_mono_type (type));
5430 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5431 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5432 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5434 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5436 if (type->type != tmp->type)
5439 mono_metadata_free_type (tmp);
5446 mono_class_get (MonoImage *image, guint32 type_token)
5448 return mono_class_get_full (image, type_token, NULL);
5452 * mono_image_init_name_cache:
5454 * Initializes the class name cache stored in image->name_cache.
5456 * LOCKING: Acquires the loader lock.
5459 mono_image_init_name_cache (MonoImage *image)
5461 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5462 guint32 cols [MONO_TYPEDEF_SIZE];
5465 guint32 i, visib, nspace_index;
5466 GHashTable *name_cache2, *nspace_table;
5468 mono_loader_lock ();
5470 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5472 if (image->dynamic) {
5473 mono_loader_unlock ();
5477 /* Temporary hash table to avoid lookups in the nspace_table */
5478 name_cache2 = g_hash_table_new (NULL, NULL);
5480 for (i = 1; i <= t->rows; ++i) {
5481 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5482 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5484 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5485 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5487 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5489 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5490 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5492 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5493 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5494 if (!nspace_table) {
5495 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5496 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5497 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5500 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5503 /* Load type names from EXPORTEDTYPES table */
5505 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5506 guint32 cols [MONO_EXP_TYPE_SIZE];
5509 for (i = 0; i < t->rows; ++i) {
5510 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5511 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5512 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5514 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5515 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5516 if (!nspace_table) {
5517 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5518 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5519 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5522 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5526 g_hash_table_destroy (name_cache2);
5528 mono_loader_unlock ();
5532 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5533 const char *name, guint32 index)
5535 GHashTable *nspace_table;
5536 GHashTable *name_cache;
5538 mono_loader_lock ();
5540 if (!image->name_cache)
5541 mono_image_init_name_cache (image);
5543 name_cache = image->name_cache;
5544 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5545 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5546 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5548 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5550 mono_loader_unlock ();
5559 find_nocase (gpointer key, gpointer value, gpointer user_data)
5561 char *name = (char*)key;
5562 FindUserData *data = (FindUserData*)user_data;
5564 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5565 data->value = value;
5569 * mono_class_from_name_case:
5570 * @image: The MonoImage where the type is looked up in
5571 * @name_space: the type namespace
5572 * @name: the type short name.
5574 * Obtains a MonoClass with a given namespace and a given name which
5575 * is located in the given MonoImage. The namespace and name
5576 * lookups are case insensitive.
5579 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5581 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5582 guint32 cols [MONO_TYPEDEF_SIZE];
5587 if (image->dynamic) {
5589 FindUserData user_data;
5591 mono_loader_lock ();
5593 if (!image->name_cache)
5594 mono_image_init_name_cache (image);
5596 user_data.key = name_space;
5597 user_data.value = NULL;
5598 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5600 if (user_data.value) {
5601 GHashTable *nspace_table = (GHashTable*)user_data.value;
5603 user_data.key = name;
5604 user_data.value = NULL;
5606 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5608 if (user_data.value)
5609 token = GPOINTER_TO_UINT (user_data.value);
5612 mono_loader_unlock ();
5615 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5621 /* add a cache if needed */
5622 for (i = 1; i <= t->rows; ++i) {
5623 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5624 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5626 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5627 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5629 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5631 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5632 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5633 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5634 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5640 return_nested_in (MonoClass *class, char *nested)
5643 char *s = strchr (nested, '/');
5644 gpointer iter = NULL;
5651 while ((found = mono_class_get_nested_types (class, &iter))) {
5652 if (strcmp (found->name, nested) == 0) {
5654 return return_nested_in (found, s);
5662 search_modules (MonoImage *image, const char *name_space, const char *name)
5664 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5665 MonoImage *file_image;
5670 * The EXPORTEDTYPES table only contains public types, so have to search the
5672 * Note: image->modules contains the contents of the MODULEREF table, while
5673 * the real module list is in the FILE table.
5675 for (i = 0; i < file_table->rows; i++) {
5676 guint32 cols [MONO_FILE_SIZE];
5677 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5678 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5681 file_image = mono_image_load_file_for_image (image, i + 1);
5683 class = mono_class_from_name (file_image, name_space, name);
5693 * mono_class_from_name:
5694 * @image: The MonoImage where the type is looked up in
5695 * @name_space: the type namespace
5696 * @name: the type short name.
5698 * Obtains a MonoClass with a given namespace and a given name which
5699 * is located in the given MonoImage.
5702 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5704 GHashTable *nspace_table;
5705 MonoImage *loaded_image;
5712 if ((nested = strchr (name, '/'))) {
5713 int pos = nested - name;
5714 int len = strlen (name);
5717 memcpy (buf, name, len + 1);
5719 nested = buf + pos + 1;
5723 if (get_class_from_name) {
5724 gboolean res = get_class_from_name (image, name_space, name, &class);
5727 class = search_modules (image, name_space, name);
5729 return class ? return_nested_in (class, nested) : NULL;
5735 mono_loader_lock ();
5737 if (!image->name_cache)
5738 mono_image_init_name_cache (image);
5740 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5743 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5745 mono_loader_unlock ();
5747 if (!token && image->dynamic && image->modules) {
5748 /* Search modules as well */
5749 for (i = 0; i < image->module_count; ++i) {
5750 MonoImage *module = image->modules [i];
5752 class = mono_class_from_name (module, name_space, name);
5759 class = search_modules (image, name_space, name);
5767 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5768 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5769 guint32 cols [MONO_EXP_TYPE_SIZE];
5772 idx = mono_metadata_token_index (token);
5774 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5776 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5777 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5778 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5781 class = mono_class_from_name (loaded_image, name_space, name);
5783 return return_nested_in (class, nested);
5785 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5786 MonoAssembly **references = image->references;
5787 guint32 assembly_idx;
5789 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
5791 if (!references [assembly_idx - 1])
5792 mono_assembly_load_reference (image, assembly_idx - 1);
5793 g_assert (references == image->references);
5794 g_assert (references [assembly_idx - 1]);
5795 if (references [assembly_idx - 1] == (gpointer)-1)
5798 /* FIXME: Cycle detection */
5799 return mono_class_from_name (references [assembly_idx - 1]->image, name_space, name);
5801 g_error ("not yet implemented");
5805 token = MONO_TOKEN_TYPE_DEF | token;
5807 class = mono_class_get (image, token);
5809 return return_nested_in (class, nested);
5814 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5815 gboolean check_interfaces)
5817 g_assert (klassc->idepth > 0);
5818 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5819 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5821 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5824 for (i = 0; i < klass->interface_count; i ++) {
5825 MonoClass *ic = klass->interfaces [i];
5830 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5835 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5838 if (klassc == mono_defaults.object_class)
5845 mono_class_has_variant_generic_params (MonoClass *klass)
5848 MonoGenericContainer *container;
5850 if (!klass->generic_class)
5853 container = klass->generic_class->container_class->generic_container;
5855 for (i = 0; i < container->type_argc; ++i)
5856 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5863 * mono_class_is_assignable_from:
5864 * @klass: the class to be assigned to
5865 * @oklass: the source class
5867 * Return: true if an instance of object oklass can be assigned to an
5868 * instance of object @klass
5871 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5874 mono_class_init (klass);
5876 if (!oklass->inited)
5877 mono_class_init (oklass);
5879 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5880 return klass == oklass;
5882 if (MONO_CLASS_IS_INTERFACE (klass)) {
5883 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5886 /* interface_offsets might not be set for dynamic classes */
5887 if (oklass->reflection_info && !oklass->interface_bitmap)
5889 * oklass might be a generic type parameter but they have
5890 * interface_offsets set.
5892 return mono_reflection_call_is_assignable_to (oklass, klass);
5893 if (!oklass->interface_bitmap)
5894 /* Happens with generic instances of not-yet created dynamic types */
5896 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5899 if (mono_class_has_variant_generic_params (klass)) {
5900 if (oklass->generic_class) {
5902 gboolean match = FALSE;
5903 MonoClass *container_class1 = klass->generic_class->container_class;
5904 MonoClass *container_class2 = oklass->generic_class->container_class;
5907 * Check whenever the generic definition of oklass implements the
5908 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5909 * here since the relevant tables are not set up.
5911 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5912 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)))
5916 MonoGenericContainer *container;
5918 container = klass->generic_class->container_class->generic_container;
5921 for (i = 0; i < container->type_argc; ++i) {
5922 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5923 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5925 if (param1_class->valuetype != param2_class->valuetype) {
5930 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5931 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5933 if (param1_class != param2_class) {
5934 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5936 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5950 } else if (klass->rank) {
5951 MonoClass *eclass, *eoclass;
5953 if (oklass->rank != klass->rank)
5956 /* vectors vs. one dimensional arrays */
5957 if (oklass->byval_arg.type != klass->byval_arg.type)
5960 eclass = klass->cast_class;
5961 eoclass = oklass->cast_class;
5964 * a is b does not imply a[] is b[] when a is a valuetype, and
5965 * b is a reference type.
5968 if (eoclass->valuetype) {
5969 if ((eclass == mono_defaults.enum_class) ||
5970 (eclass == mono_defaults.enum_class->parent) ||
5971 (eclass == mono_defaults.object_class))
5975 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5976 } else if (mono_class_is_nullable (klass)) {
5977 if (mono_class_is_nullable (oklass))
5978 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5980 return mono_class_is_assignable_from (klass->cast_class, oklass);
5981 } else if (klass == mono_defaults.object_class)
5984 return mono_class_has_parent (oklass, klass);
5988 * mono_class_get_cctor:
5989 * @klass: A MonoClass pointer
5991 * Returns: the static constructor of @klass if it exists, NULL otherwise.
5994 mono_class_get_cctor (MonoClass *klass)
5996 MonoCachedClassInfo cached_info;
5998 if (!klass->has_cctor)
6001 if (mono_class_get_cached_class_info (klass, &cached_info))
6002 return mono_get_method (klass->image, cached_info.cctor_token, klass);
6004 if (klass->generic_class && !klass->methods)
6005 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
6007 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
6011 * mono_class_get_finalizer:
6012 * @klass: The MonoClass pointer
6014 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
6017 mono_class_get_finalizer (MonoClass *klass)
6019 MonoCachedClassInfo cached_info;
6022 mono_class_init (klass);
6023 if (!klass->has_finalize)
6026 if (mono_class_get_cached_class_info (klass, &cached_info))
6027 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
6029 mono_class_setup_vtable (klass);
6030 return klass->vtable [finalize_slot];
6035 * mono_class_needs_cctor_run:
6036 * @klass: the MonoClass pointer
6037 * @caller: a MonoMethod describing the caller
6039 * Determines whenever the class has a static constructor and whenever it
6040 * needs to be called when executing CALLER.
6043 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
6047 method = mono_class_get_cctor (klass);
6049 return (method == caller) ? FALSE : TRUE;
6055 * mono_class_array_element_size:
6058 * Returns: the number of bytes an element of type @klass
6059 * uses when stored into an array.
6062 mono_class_array_element_size (MonoClass *klass)
6064 MonoType *type = &klass->byval_arg;
6067 switch (type->type) {
6070 case MONO_TYPE_BOOLEAN:
6074 case MONO_TYPE_CHAR:
6083 case MONO_TYPE_CLASS:
6084 case MONO_TYPE_STRING:
6085 case MONO_TYPE_OBJECT:
6086 case MONO_TYPE_SZARRAY:
6087 case MONO_TYPE_ARRAY:
6089 case MONO_TYPE_MVAR:
6090 return sizeof (gpointer);
6095 case MONO_TYPE_VALUETYPE:
6096 if (type->data.klass->enumtype) {
6097 type = mono_class_enum_basetype (type->data.klass);
6098 klass = klass->element_class;
6101 return mono_class_instance_size (klass) - sizeof (MonoObject);
6102 case MONO_TYPE_GENERICINST:
6103 type = &type->data.generic_class->container_class->byval_arg;
6106 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6112 * mono_array_element_size:
6113 * @ac: pointer to a #MonoArrayClass
6115 * Returns: the size of single array element.
6118 mono_array_element_size (MonoClass *ac)
6120 g_assert (ac->rank);
6121 return ac->sizes.element_size;
6125 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6126 MonoGenericContext *context)
6128 if (image->dynamic) {
6129 MonoClass *tmp_handle_class;
6130 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6132 g_assert (tmp_handle_class);
6134 *handle_class = tmp_handle_class;
6136 if (tmp_handle_class == mono_defaults.typehandle_class)
6137 return &((MonoClass*)obj)->byval_arg;
6142 switch (token & 0xff000000) {
6143 case MONO_TOKEN_TYPE_DEF:
6144 case MONO_TOKEN_TYPE_REF:
6145 case MONO_TOKEN_TYPE_SPEC: {
6148 *handle_class = mono_defaults.typehandle_class;
6149 type = mono_type_get_full (image, token, context);
6152 mono_class_init (mono_class_from_mono_type (type));
6153 /* We return a MonoType* as handle */
6156 case MONO_TOKEN_FIELD_DEF: {
6158 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6160 *handle_class = mono_defaults.fieldhandle_class;
6161 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6164 mono_class_init (class);
6165 return mono_class_get_field (class, token);
6167 case MONO_TOKEN_METHOD_DEF:
6168 case MONO_TOKEN_METHOD_SPEC: {
6170 meth = mono_get_method_full (image, token, NULL, context);
6172 *handle_class = mono_defaults.methodhandle_class;
6175 case MONO_TOKEN_MEMBER_REF: {
6176 guint32 cols [MONO_MEMBERREF_SIZE];
6178 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6179 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6180 mono_metadata_decode_blob_size (sig, &sig);
6181 if (*sig == 0x6) { /* it's a field */
6183 MonoClassField *field;
6184 field = mono_field_from_token (image, token, &klass, context);
6186 *handle_class = mono_defaults.fieldhandle_class;
6190 meth = mono_get_method_full (image, token, NULL, context);
6192 *handle_class = mono_defaults.methodhandle_class;
6197 g_warning ("Unknown token 0x%08x in ldtoken", token);
6204 * This function might need to call runtime functions so it can't be part
6205 * of the metadata library.
6207 static MonoLookupDynamicToken lookup_dynamic = NULL;
6210 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6212 lookup_dynamic = func;
6216 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6218 MonoClass *handle_class;
6220 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6224 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6226 return lookup_dynamic (image, token, valid_token, handle_class, context);
6229 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6232 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6234 get_cached_class_info = func;
6238 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6240 if (!get_cached_class_info)
6243 return get_cached_class_info (klass, res);
6247 mono_install_get_class_from_name (MonoGetClassFromName func)
6249 get_class_from_name = func;
6253 mono_class_get_image (MonoClass *klass)
6255 return klass->image;
6259 * mono_class_get_element_class:
6260 * @klass: the MonoClass to act on
6262 * Returns: the element class of an array or an enumeration.
6265 mono_class_get_element_class (MonoClass *klass)
6267 return klass->element_class;
6271 * mono_class_is_valuetype:
6272 * @klass: the MonoClass to act on
6274 * Returns: true if the MonoClass represents a ValueType.
6277 mono_class_is_valuetype (MonoClass *klass)
6279 return klass->valuetype;
6283 * mono_class_is_enum:
6284 * @klass: the MonoClass to act on
6286 * Returns: true if the MonoClass represents an enumeration.
6289 mono_class_is_enum (MonoClass *klass)
6291 return klass->enumtype;
6295 * mono_class_enum_basetype:
6296 * @klass: the MonoClass to act on
6298 * Returns: the underlying type representation for an enumeration.
6301 mono_class_enum_basetype (MonoClass *klass)
6303 if (klass->element_class == klass)
6307 return &klass->element_class->byval_arg;
6311 * mono_class_get_parent
6312 * @klass: the MonoClass to act on
6314 * Returns: the parent class for this class.
6317 mono_class_get_parent (MonoClass *klass)
6319 return klass->parent;
6323 * mono_class_get_nesting_type;
6324 * @klass: the MonoClass to act on
6326 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6329 mono_class_get_nesting_type (MonoClass *klass)
6331 return klass->nested_in;
6335 * mono_class_get_rank:
6336 * @klass: the MonoClass to act on
6338 * Returns: the rank for the array (the number of dimensions).
6341 mono_class_get_rank (MonoClass *klass)
6347 * mono_class_get_flags:
6348 * @klass: the MonoClass to act on
6350 * The type flags from the TypeDef table from the metadata.
6351 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6354 * Returns: the flags from the TypeDef table.
6357 mono_class_get_flags (MonoClass *klass)
6359 return klass->flags;
6363 * mono_class_get_name
6364 * @klass: the MonoClass to act on
6366 * Returns: the name of the class.
6369 mono_class_get_name (MonoClass *klass)
6375 * mono_class_get_namespace:
6376 * @klass: the MonoClass to act on
6378 * Returns: the namespace of the class.
6381 mono_class_get_namespace (MonoClass *klass)
6383 return klass->name_space;
6387 * mono_class_get_type:
6388 * @klass: the MonoClass to act on
6390 * This method returns the internal Type representation for the class.
6392 * Returns: the MonoType from the class.
6395 mono_class_get_type (MonoClass *klass)
6397 return &klass->byval_arg;
6401 * mono_class_get_type_token
6402 * @klass: the MonoClass to act on
6404 * This method returns type token for the class.
6406 * Returns: the type token for the class.
6409 mono_class_get_type_token (MonoClass *klass)
6411 return klass->type_token;
6415 * mono_class_get_byref_type:
6416 * @klass: the MonoClass to act on
6421 mono_class_get_byref_type (MonoClass *klass)
6423 return &klass->this_arg;
6427 * mono_class_num_fields:
6428 * @klass: the MonoClass to act on
6430 * Returns: the number of static and instance fields in the class.
6433 mono_class_num_fields (MonoClass *klass)
6435 return klass->field.count;
6439 * mono_class_num_methods:
6440 * @klass: the MonoClass to act on
6442 * Returns: the number of methods in the class.
6445 mono_class_num_methods (MonoClass *klass)
6447 return klass->method.count;
6451 * mono_class_num_properties
6452 * @klass: the MonoClass to act on
6454 * Returns: the number of properties in the class.
6457 mono_class_num_properties (MonoClass *klass)
6459 mono_class_setup_properties (klass);
6461 return klass->property.count;
6465 * mono_class_num_events:
6466 * @klass: the MonoClass to act on
6468 * Returns: the number of events in the class.
6471 mono_class_num_events (MonoClass *klass)
6473 mono_class_setup_events (klass);
6475 return klass->event.count;
6479 * mono_class_get_fields:
6480 * @klass: the MonoClass to act on
6482 * This routine is an iterator routine for retrieving the fields in a class.
6484 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6485 * iterate over all of the elements. When no more values are
6486 * available, the return value is NULL.
6488 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6491 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6493 MonoClassField* field;
6497 mono_class_setup_fields_locking (klass);
6498 if (klass->exception_type)
6500 /* start from the first */
6501 if (klass->field.count) {
6502 return *iter = &klass->fields [0];
6510 if (field < &klass->fields [klass->field.count]) {
6511 return *iter = field;
6517 * mono_class_get_methods
6518 * @klass: the MonoClass to act on
6520 * This routine is an iterator routine for retrieving the fields in a class.
6522 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6523 * iterate over all of the elements. When no more values are
6524 * available, the return value is NULL.
6526 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6529 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6531 MonoMethod** method;
6535 mono_class_init (klass);
6537 mono_class_setup_methods (klass);
6538 /* start from the first */
6539 if (klass->method.count) {
6540 *iter = &klass->methods [0];
6541 return klass->methods [0];
6549 if (method < &klass->methods [klass->method.count]) {
6557 * mono_class_get_virtual_methods:
6559 * Iterate over the virtual methods of KLASS.
6561 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6564 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6566 MonoMethod** method;
6569 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6571 mono_class_setup_methods (klass);
6572 /* start from the first */
6573 method = &klass->methods [0];
6578 while (method < &klass->methods [klass->method.count]) {
6579 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6583 if (method < &klass->methods [klass->method.count]) {
6590 /* Search directly in metadata to avoid calling setup_methods () */
6591 MonoMethod *res = NULL;
6597 start_index = GPOINTER_TO_UINT (*iter);
6600 for (i = start_index; i < klass->method.count; ++i) {
6601 guint32 cols [MONO_METHOD_SIZE];
6603 /* class->method.first points into the methodptr table */
6604 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6606 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6610 if (i < klass->method.count) {
6611 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6612 /* Add 1 here so the if (*iter) check fails */
6613 *iter = GUINT_TO_POINTER (i + 1);
6622 * mono_class_get_properties:
6623 * @klass: the MonoClass to act on
6625 * This routine is an iterator routine for retrieving the properties in a class.
6627 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6628 * iterate over all of the elements. When no more values are
6629 * available, the return value is NULL.
6631 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6634 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6636 MonoProperty* property;
6640 mono_class_init (klass);
6642 mono_class_setup_properties (klass);
6643 /* start from the first */
6644 if (klass->property.count) {
6645 return *iter = &klass->properties [0];
6653 if (property < &klass->properties [klass->property.count]) {
6654 return *iter = property;
6660 * mono_class_get_events:
6661 * @klass: the MonoClass to act on
6663 * This routine is an iterator routine for retrieving the properties in a class.
6665 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6666 * iterate over all of the elements. When no more values are
6667 * available, the return value is NULL.
6669 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6672 mono_class_get_events (MonoClass* klass, gpointer *iter)
6678 mono_class_init (klass);
6680 mono_class_setup_events (klass);
6681 /* start from the first */
6682 if (klass->event.count) {
6683 return *iter = &klass->events [0];
6691 if (event < &klass->events [klass->event.count]) {
6692 return *iter = event;
6698 * mono_class_get_interfaces
6699 * @klass: the MonoClass to act on
6701 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6703 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6704 * iterate over all of the elements. When no more values are
6705 * available, the return value is NULL.
6707 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6710 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6716 mono_class_init (klass);
6718 /* start from the first */
6719 if (klass->interface_count) {
6720 *iter = &klass->interfaces [0];
6721 return klass->interfaces [0];
6729 if (iface < &klass->interfaces [klass->interface_count]) {
6737 * mono_class_get_nested_types
6738 * @klass: the MonoClass to act on
6740 * This routine is an iterator routine for retrieving the nested types of a class.
6741 * This works only if @klass is non-generic, or a generic type definition.
6743 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6744 * iterate over all of the elements. When no more values are
6745 * available, the return value is NULL.
6747 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6750 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6758 mono_class_init (klass);
6759 if (!klass->nested_classes_inited) {
6760 if (!klass->type_token)
6761 klass->nested_classes_inited = TRUE;
6762 mono_loader_lock ();
6763 if (!klass->nested_classes_inited) {
6764 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
6767 guint32 cols [MONO_NESTED_CLASS_SIZE];
6768 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
6769 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
6770 klass->nested_classes = g_list_prepend_mempool (klass->nested_classes, klass->image->mempool, nclass);
6772 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
6775 mono_memory_barrier ();
6776 klass->nested_classes_inited = TRUE;
6777 mono_loader_unlock ();
6781 /* start from the first */
6782 if (klass->nested_classes) {
6783 *iter = klass->nested_classes;
6784 return klass->nested_classes->data;
6786 /* no nested types */
6800 * mono_field_get_name:
6801 * @field: the MonoClassField to act on
6803 * Returns: the name of the field.
6806 mono_field_get_name (MonoClassField *field)
6812 * mono_field_get_type:
6813 * @field: the MonoClassField to act on
6815 * Returns: MonoType of the field.
6818 mono_field_get_type (MonoClassField *field)
6824 * mono_field_get_type:
6825 * @field: the MonoClassField to act on
6827 * Returns: MonoClass where the field was defined.
6830 mono_field_get_parent (MonoClassField *field)
6832 return field->parent;
6836 * mono_field_get_flags;
6837 * @field: the MonoClassField to act on
6839 * The metadata flags for a field are encoded using the
6840 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6842 * Returns: the flags for the field.
6845 mono_field_get_flags (MonoClassField *field)
6847 return field->type->attrs;
6851 * mono_field_get_offset;
6852 * @field: the MonoClassField to act on
6854 * Returns: the field offset.
6857 mono_field_get_offset (MonoClassField *field)
6859 return field->offset;
6863 mono_field_get_rva (MonoClassField *field)
6867 MonoClass *klass = field->parent;
6869 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
6871 if (!klass->field_def_values) {
6872 mono_loader_lock ();
6873 if (!klass->field_def_values)
6874 klass->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
6875 mono_loader_unlock ();
6878 field_index = mono_field_get_index (field);
6880 if (!klass->field_def_values [field_index].data && !klass->image->dynamic) {
6881 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
6883 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
6884 klass->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
6887 return klass->field_def_values [field_index].data;
6891 * mono_field_get_data;
6892 * @field: the MonoClassField to act on
6894 * Returns: pointer to the metadata constant value or to the field
6895 * data if it has an RVA flag.
6898 mono_field_get_data (MonoClassField *field)
6900 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
6901 MonoTypeEnum def_type;
6903 return mono_class_get_field_default_value (field, &def_type);
6904 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
6905 return mono_field_get_rva (field);
6912 * mono_property_get_name:
6913 * @prop: the MonoProperty to act on
6915 * Returns: the name of the property
6918 mono_property_get_name (MonoProperty *prop)
6924 * mono_property_get_set_method
6925 * @prop: the MonoProperty to act on.
6927 * Returns: the setter method of the property (A MonoMethod)
6930 mono_property_get_set_method (MonoProperty *prop)
6936 * mono_property_get_get_method
6937 * @prop: the MonoProperty to act on.
6939 * Returns: the setter method of the property (A MonoMethod)
6942 mono_property_get_get_method (MonoProperty *prop)
6948 * mono_property_get_parent:
6949 * @prop: the MonoProperty to act on.
6951 * Returns: the MonoClass where the property was defined.
6954 mono_property_get_parent (MonoProperty *prop)
6956 return prop->parent;
6960 * mono_property_get_flags:
6961 * @prop: the MonoProperty to act on.
6963 * The metadata flags for a property are encoded using the
6964 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6966 * Returns: the flags for the property.
6969 mono_property_get_flags (MonoProperty *prop)
6975 * mono_event_get_name:
6976 * @event: the MonoEvent to act on
6978 * Returns: the name of the event.
6981 mono_event_get_name (MonoEvent *event)
6987 * mono_event_get_add_method:
6988 * @event: The MonoEvent to act on.
6990 * Returns: the @add' method for the event (a MonoMethod).
6993 mono_event_get_add_method (MonoEvent *event)
6999 * mono_event_get_remove_method:
7000 * @event: The MonoEvent to act on.
7002 * Returns: the @remove method for the event (a MonoMethod).
7005 mono_event_get_remove_method (MonoEvent *event)
7007 return event->remove;
7011 * mono_event_get_raise_method:
7012 * @event: The MonoEvent to act on.
7014 * Returns: the @raise method for the event (a MonoMethod).
7017 mono_event_get_raise_method (MonoEvent *event)
7019 return event->raise;
7023 * mono_event_get_parent:
7024 * @event: the MonoEvent to act on.
7026 * Returns: the MonoClass where the event is defined.
7029 mono_event_get_parent (MonoEvent *event)
7031 return event->parent;
7035 * mono_event_get_flags
7036 * @event: the MonoEvent to act on.
7038 * The metadata flags for an event are encoded using the
7039 * EVENT_* constants. See the tabledefs.h file for details.
7041 * Returns: the flags for the event.
7044 mono_event_get_flags (MonoEvent *event)
7046 return event->attrs;
7050 * mono_class_get_method_from_name:
7051 * @klass: where to look for the method
7052 * @name_space: name of the method
7053 * @param_count: number of parameters. -1 for any number.
7055 * Obtains a MonoMethod with a given name and number of parameters.
7056 * It only works if there are no multiple signatures for any given method name.
7059 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
7061 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
7065 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
7067 MonoMethod *res = NULL;
7070 /* Search directly in the metadata to avoid calling setup_methods () */
7071 for (i = 0; i < klass->method.count; ++i) {
7072 guint32 cols [MONO_METHOD_SIZE];
7075 /* class->method.first points into the methodptr table */
7076 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
7078 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
7079 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7080 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
7091 * mono_class_get_method_from_name_flags:
7092 * @klass: where to look for the method
7093 * @name_space: name of the method
7094 * @param_count: number of parameters. -1 for any number.
7095 * @flags: flags which must be set in the method
7097 * Obtains a MonoMethod with a given name and number of parameters.
7098 * It only works if there are no multiple signatures for any given method name.
7101 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
7103 MonoMethod *res = NULL;
7106 mono_class_init (klass);
7108 if (klass->generic_class && !klass->methods) {
7109 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
7111 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
7115 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
7116 mono_class_setup_methods (klass);
7117 for (i = 0; i < klass->method.count; ++i) {
7118 MonoMethod *method = klass->methods [i];
7120 if (method->name[0] == name [0] &&
7121 !strcmp (name, method->name) &&
7122 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
7123 ((method->flags & flags) == flags)) {
7130 res = find_method_in_metadata (klass, name, param_count, flags);
7137 * mono_class_set_failure:
7138 * @klass: class in which the failure was detected
7139 * @ex_type: the kind of exception/error to be thrown (later)
7140 * @ex_data: exception data (specific to each type of exception/error)
7142 * Keep a detected failure informations in the class for later processing.
7143 * Note that only the first failure is kept.
7145 * LOCKING: Acquires the loader lock.
7148 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
7150 if (klass->exception_type)
7153 mono_loader_lock ();
7154 klass->exception_type = ex_type;
7156 mono_property_hash_insert (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
7157 mono_loader_unlock ();
7163 * mono_class_get_exception_data:
7165 * Return the exception_data property of KLASS.
7167 * LOCKING: Acquires the loader lock.
7170 mono_class_get_exception_data (MonoClass *klass)
7174 mono_loader_lock ();
7175 res = mono_property_hash_lookup (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
7176 mono_loader_unlock ();
7181 * mono_classes_init:
7183 * Initialize the resources used by this module.
7186 mono_classes_init (void)
7188 mono_counters_register ("Inflated methods size",
7189 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
7190 mono_counters_register ("Inflated classes size",
7191 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
7195 * mono_classes_cleanup:
7197 * Free the resources used by this module.
7200 mono_classes_cleanup (void)
7202 if (global_interface_bitset)
7203 mono_bitset_free (global_interface_bitset);
7207 * mono_class_get_exception_for_failure:
7208 * @klass: class in which the failure was detected
7210 * Return a constructed MonoException than the caller can then throw
7211 * using mono_raise_exception - or NULL if no failure is present (or
7212 * doesn't result in an exception).
7215 mono_class_get_exception_for_failure (MonoClass *klass)
7217 gpointer exception_data = mono_class_get_exception_data (klass);
7219 switch (klass->exception_type) {
7220 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7221 MonoDomain *domain = mono_domain_get ();
7222 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7223 MonoMethod *method = exception_data;
7224 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7225 MonoObject *exc = NULL;
7229 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7230 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7231 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7233 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7234 return (MonoException*) exc;
7236 case MONO_EXCEPTION_TYPE_LOAD: {
7239 char *str = mono_type_get_full_name (klass);
7240 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7241 name = mono_string_new (mono_domain_get (), str);
7243 ex = mono_get_exception_type_load (name, astr);
7247 case MONO_EXCEPTION_MISSING_METHOD: {
7248 char *class_name = exception_data;
7249 char *assembly_name = class_name + strlen (class_name) + 1;
7251 return mono_get_exception_missing_method (class_name, assembly_name);
7253 case MONO_EXCEPTION_MISSING_FIELD: {
7254 char *class_name = exception_data;
7255 char *member_name = class_name + strlen (class_name) + 1;
7257 return mono_get_exception_missing_field (class_name, member_name);
7259 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7260 char *msg_format = exception_data;
7261 char *assembly_name = msg_format + strlen (msg_format) + 1;
7262 char *msg = g_strdup_printf (msg_format, assembly_name);
7265 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7271 case MONO_EXCEPTION_BAD_IMAGE: {
7272 return mono_get_exception_bad_image_format (exception_data);
7275 MonoLoaderError *error;
7278 error = mono_loader_get_last_error ();
7280 ex = mono_loader_error_prepare_exception (error);
7284 /* TODO - handle other class related failures */
7291 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7293 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7294 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7296 if (outer_klass == inner_klass)
7298 inner_klass = inner_klass->nested_in;
7299 } while (inner_klass);
7304 mono_class_get_generic_type_definition (MonoClass *klass)
7306 return klass->generic_class ? klass->generic_class->container_class : klass;
7310 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7312 * Generic instantiations are ignored for all super types of @klass.
7314 * Visibility checks ignoring generic instantiations.
7317 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7320 klass = mono_class_get_generic_type_definition (klass);
7321 parent = mono_class_get_generic_type_definition (parent);
7323 for (i = 0; i < klass->idepth; ++i) {
7324 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7330 * Subtype can only access parent members with family protection if the site object
7331 * is subclass of Subtype. For example:
7332 * class A { protected int x; }
7334 * void valid_access () {
7338 * void invalid_access () {
7345 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7347 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7350 if (context_klass == NULL)
7352 /*if access_klass is not member_klass context_klass must be type compat*/
7353 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7359 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7362 if (accessing == accessed)
7364 if (!accessed || !accessing)
7366 mono_assembly_load_friends (accessed);
7367 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7368 MonoAssemblyName *friend = tmp->data;
7369 /* Be conservative with checks */
7372 if (strcmp (accessing->aname.name, friend->name))
7374 if (friend->public_key_token [0]) {
7375 if (!accessing->aname.public_key_token [0])
7377 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7386 * If klass is a generic type or if it is derived from a generic type, return the
7387 * MonoClass of the generic definition
7388 * Returns NULL if not found
7391 get_generic_definition_class (MonoClass *klass)
7394 if (klass->generic_class && klass->generic_class->container_class)
7395 return klass->generic_class->container_class;
7396 klass = klass->parent;
7402 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7405 for (i = 0; i < ginst->type_argc; ++i) {
7406 MonoType *type = ginst->type_argv[i];
7407 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
7409 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7416 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7418 int access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7420 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7423 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7426 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7429 switch (access_level) {
7430 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7431 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7433 case TYPE_ATTRIBUTE_PUBLIC:
7436 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7439 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7440 return is_nesting_type (member_klass, access_klass);
7442 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7443 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7445 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7446 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7448 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7449 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7450 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7452 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7453 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7454 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7459 /* FIXME: check visibility of type, too */
7461 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7463 MonoClass *member_generic_def;
7464 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7465 access_klass->generic_container) &&
7466 (member_generic_def = get_generic_definition_class (member_klass))) {
7467 MonoClass *access_container;
7469 if (access_klass->generic_container)
7470 access_container = access_klass;
7472 access_container = access_klass->generic_class->container_class;
7474 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7478 /* Partition I 8.5.3.2 */
7479 /* the access level values are the same for fields and methods */
7480 switch (access_level) {
7481 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7482 /* same compilation unit */
7483 return access_klass->image == member_klass->image;
7484 case FIELD_ATTRIBUTE_PRIVATE:
7485 return access_klass == member_klass;
7486 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7487 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7488 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7491 case FIELD_ATTRIBUTE_ASSEMBLY:
7492 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7493 case FIELD_ATTRIBUTE_FAMILY:
7494 if (is_valid_family_access (access_klass, member_klass, context_klass))
7497 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7498 if (is_valid_family_access (access_klass, member_klass, context_klass))
7500 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7501 case FIELD_ATTRIBUTE_PUBLIC:
7508 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7510 /* FIXME: check all overlapping fields */
7511 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7513 MonoClass *nested = method->klass->nested_in;
7515 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7518 nested = nested->nested_in;
7525 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7527 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7529 MonoClass *nested = method->klass->nested_in;
7531 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7534 nested = nested->nested_in;
7539 * with generics calls to explicit interface implementations can be expressed
7540 * directly: the method is private, but we must allow it. This may be opening
7541 * a hole or the generics code should handle this differently.
7542 * Maybe just ensure the interface type is public.
7544 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7550 * mono_method_can_access_method_with_context:
7551 * @method: The caller method
7552 * @called: The called method
7553 * @context_klass:TThe static type on stack of the owner @called object used
7555 * This function must be used with instance calls, as they have more strict family accessibility.
7556 * It can be used with static mehthod, but context_klass should be NULL.
7558 * Returns: TRUE if caller have proper visibility and acessibility to @called
7561 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7563 MonoClass *access_class = method->klass;
7564 MonoClass *member_class = called->klass;
7565 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7567 MonoClass *nested = access_class->nested_in;
7569 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7572 nested = nested->nested_in;
7579 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7582 if (called->is_inflated) {
7583 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7584 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7593 * mono_method_can_access_method_with_context:
7594 * @method: The caller method
7595 * @field: The accessed field
7596 * @context_klass: The static type on stack of the owner @field object used
7598 * This function must be used with instance fields, as they have more strict family accessibility.
7599 * It can be used with static fields, but context_klass should be NULL.
7601 * Returns: TRUE if caller have proper visibility and acessibility to @field
7604 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7606 MonoClass *access_class = method->klass;
7607 MonoClass *member_class = field->parent;
7608 /* FIXME: check all overlapping fields */
7609 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7611 MonoClass *nested = access_class->nested_in;
7613 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7616 nested = nested->nested_in;
7623 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7629 * mono_type_is_valid_enum_basetype:
7630 * @type: The MonoType to check
7632 * Returns: TRUE if the type can be used as the basetype of an enum
7634 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7635 switch (type->type) {
7638 case MONO_TYPE_BOOLEAN:
7641 case MONO_TYPE_CHAR:
7654 * mono_class_is_valid_enum:
7655 * @klass: An enum class to be validated
7657 * This method verify the required properties an enum should have.
7659 * Returns: TRUE if the informed enum class is valid
7661 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7662 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7663 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7665 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7666 MonoClassField * field;
7667 gpointer iter = NULL;
7668 gboolean found_base_field = FALSE;
7670 g_assert (klass->enumtype);
7671 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7672 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7676 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7679 while ((field = mono_class_get_fields (klass, &iter))) {
7680 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7681 if (found_base_field)
7683 found_base_field = TRUE;
7684 if (!mono_type_is_valid_enum_basetype (field->type))
7689 if (!found_base_field)
7692 if (klass->method.count > 0)
7699 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7701 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7705 * mono_class_generic_sharing_enabled:
7708 * Returns whether generic sharing is enabled for class.
7710 * This is a stop-gap measure to slowly introduce generic sharing
7711 * until we have all the issues sorted out, at which time this
7712 * function will disappear and generic sharing will always be enabled.
7715 mono_class_generic_sharing_enabled (MonoClass *class)
7717 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
7718 static gboolean supported = TRUE;
7720 /* Not supported by the JIT backends */
7721 static gboolean supported = FALSE;
7723 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7724 static gboolean inited = FALSE;
7730 generic_sharing = MONO_GENERIC_SHARING_ALL;
7732 generic_sharing = MONO_GENERIC_SHARING_NONE;
7734 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7735 if (strcmp (option, "corlib") == 0)
7736 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7737 else if (strcmp (option, "collections") == 0)
7738 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7739 else if (strcmp (option, "all") == 0)
7740 generic_sharing = MONO_GENERIC_SHARING_ALL;
7741 else if (strcmp (option, "none") == 0)
7742 generic_sharing = MONO_GENERIC_SHARING_NONE;
7744 g_warning ("Unknown generic sharing option `%s'.", option);
7748 generic_sharing = MONO_GENERIC_SHARING_NONE;
7753 switch (generic_sharing) {
7754 case MONO_GENERIC_SHARING_NONE:
7756 case MONO_GENERIC_SHARING_ALL:
7758 case MONO_GENERIC_SHARING_CORLIB :
7759 return class->image == mono_defaults.corlib;
7760 case MONO_GENERIC_SHARING_COLLECTIONS:
7761 if (class->image != mono_defaults.corlib)
7763 while (class->nested_in)
7764 class = class->nested_in;
7765 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7767 g_assert_not_reached ();
7772 * mono_class_setup_interface_id:
7774 * Initializes MonoClass::interface_id if required.
7776 * LOCKING: Acquires the loader lock.
7779 mono_class_setup_interface_id (MonoClass *class)
7781 mono_loader_lock ();
7782 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
7783 class->interface_id = mono_get_unique_iid (class);
7784 mono_loader_unlock ();