2 * class.c: Class management for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
7 * (C) 2001-2006 Novell, Inc.
17 #include <mono/io-layer/atomic.h>
19 #include <mono/metadata/image.h>
20 #include <mono/metadata/assembly.h>
21 #include <mono/metadata/metadata.h>
22 #include <mono/metadata/metadata-internals.h>
23 #include <mono/metadata/profiler-private.h>
24 #include <mono/metadata/tabledefs.h>
25 #include <mono/metadata/tokentype.h>
26 #include <mono/metadata/class-internals.h>
27 #include <mono/metadata/object.h>
28 #include <mono/metadata/appdomain.h>
29 #include <mono/metadata/mono-endian.h>
30 #include <mono/metadata/debug-helpers.h>
31 #include <mono/metadata/reflection.h>
32 #include <mono/metadata/exception.h>
33 #include <mono/metadata/security-manager.h>
34 #include <mono/metadata/security-core-clr.h>
35 #include <mono/metadata/attrdefs.h>
36 #include <mono/metadata/gc-internal.h>
37 #include <mono/metadata/verify-internals.h>
38 #include <mono/utils/mono-counters.h>
42 gboolean mono_print_vtable = FALSE;
45 * Controls whenever mono_class_init () constructs a generic vtable. This is TRUE by
46 * default to avoid breaking embedding apps, but set to FALSE by the runtime executable
49 gboolean mono_setup_vtable_in_class_init = TRUE;
51 /* Function supplied by the runtime to find classes by name using information from the AOT file */
52 static MonoGetClassFromName get_class_from_name = NULL;
54 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
55 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
56 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
57 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
58 static int generic_array_methods (MonoClass *class);
59 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
61 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
62 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
65 * mono_class_from_typeref:
67 * @type_token: a TypeRef token
69 * Creates the MonoClass* structure representing the type defined by
70 * the typeref token valid inside @image.
71 * Returns: the MonoClass* representing the typeref token, NULL ifcould
75 mono_class_from_typeref (MonoImage *image, guint32 type_token)
77 guint32 cols [MONO_TYPEREF_SIZE];
78 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
80 const char *name, *nspace;
84 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
86 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
87 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
89 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
90 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
91 case MONO_RESOLTION_SCOPE_MODULE:
93 g_error ("null ResolutionScope not yet handled");
94 /* a typedef in disguise */
95 return mono_class_from_name (image, nspace, name);
96 case MONO_RESOLTION_SCOPE_MODULEREF:
97 module = mono_image_load_module (image, idx);
99 return mono_class_from_name (module, nspace, name);
101 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
104 human_name = mono_stringify_assembly_name (&image->assembly->aname);
105 mono_loader_set_error_type_load (msg, human_name);
111 case MONO_RESOLTION_SCOPE_TYPEREF: {
112 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
115 if (enclosing->nested_classes_inited) {
116 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
117 for (tmp = enclosing->nested_classes; tmp; tmp = tmp->next) {
119 if (strcmp (res->name, name) == 0)
123 /* Don't call mono_class_init as we might've been called by it recursively */
124 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
126 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
127 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
128 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
130 if (strcmp (nname, name) == 0)
131 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
133 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
136 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
139 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
143 if (!image->references || !image->references [idx - 1])
144 mono_assembly_load_reference (image, idx - 1);
145 g_assert (image->references [idx - 1]);
147 /* If the assembly did not load, register this as a type load exception */
148 if (image->references [idx - 1] == REFERENCE_MISSING){
149 MonoAssemblyName aname;
152 mono_assembly_get_assemblyref (image, idx - 1, &aname);
153 human_name = mono_stringify_assembly_name (&aname);
154 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
160 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
165 mono_mempool_dup (MonoMemPool *mp, void *data, guint size)
167 void *res = mono_mempool_alloc (mp, size);
168 memcpy (res, data, size);
172 /* Copy everything mono_metadata_free_array free. */
174 mono_dup_array_type (MonoMemPool *mp, MonoArrayType *a)
178 a = mono_mempool_dup (mp, a, sizeof (MonoArrayType));
180 a->sizes = mono_mempool_dup (mp, a->sizes, a->numsizes * sizeof (int));
182 a->lobounds = mono_mempool_dup (mp, a->lobounds, a->numlobounds * sizeof (int));
183 mono_loader_unlock ();
185 a = g_memdup (a, sizeof (MonoArrayType));
187 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
189 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
194 /* Copy everything mono_metadata_free_method_signature free. */
196 mono_metadata_signature_deep_dup (MonoMemPool *mp, MonoMethodSignature *sig)
200 sig = mono_metadata_signature_dup_full (mp, sig);
202 sig->ret = mono_metadata_type_dup (mp, sig->ret);
203 for (i = 0; i < sig->param_count; ++i)
204 sig->params [i] = mono_metadata_type_dup (mp, sig->params [i]);
210 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
212 MonoAssembly *ta = klass->image->assembly;
214 g_string_append_printf (
215 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
217 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
218 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
219 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
220 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
224 mono_type_name_check_byref (MonoType *type, GString *str)
227 g_string_append_c (str, '&');
231 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
232 MonoTypeNameFormat format)
236 switch (type->type) {
237 case MONO_TYPE_ARRAY: {
238 int i, rank = type->data.array->rank;
239 MonoTypeNameFormat nested_format;
241 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
242 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
244 mono_type_get_name_recurse (
245 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
246 g_string_append_c (str, '[');
248 g_string_append_c (str, '*');
249 for (i = 1; i < rank; i++)
250 g_string_append_c (str, ',');
251 g_string_append_c (str, ']');
253 mono_type_name_check_byref (type, str);
255 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
256 _mono_type_get_assembly_name (type->data.array->eklass, str);
259 case MONO_TYPE_SZARRAY: {
260 MonoTypeNameFormat nested_format;
262 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
263 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
265 mono_type_get_name_recurse (
266 &type->data.klass->byval_arg, str, FALSE, nested_format);
267 g_string_append (str, "[]");
269 mono_type_name_check_byref (type, str);
271 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
272 _mono_type_get_assembly_name (type->data.klass, str);
275 case MONO_TYPE_PTR: {
276 MonoTypeNameFormat nested_format;
278 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
279 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
281 mono_type_get_name_recurse (
282 type->data.type, str, FALSE, nested_format);
283 g_string_append_c (str, '*');
285 mono_type_name_check_byref (type, str);
287 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
288 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
293 g_assert (type->data.generic_param->name);
294 g_string_append (str, type->data.generic_param->name);
296 mono_type_name_check_byref (type, str);
300 klass = mono_class_from_mono_type (type);
301 if (klass->nested_in) {
302 mono_type_get_name_recurse (
303 &klass->nested_in->byval_arg, str, TRUE, format);
304 if (format == MONO_TYPE_NAME_FORMAT_IL)
305 g_string_append_c (str, '.');
307 g_string_append_c (str, '+');
308 } else if (*klass->name_space) {
309 g_string_append (str, klass->name_space);
310 g_string_append_c (str, '.');
312 if (format == MONO_TYPE_NAME_FORMAT_IL) {
313 char *s = strchr (klass->name, '`');
314 int len = s ? s - klass->name : strlen (klass->name);
316 g_string_append_len (str, klass->name, len);
318 g_string_append (str, klass->name);
321 if (klass->generic_class) {
322 MonoGenericClass *gclass = klass->generic_class;
323 MonoGenericInst *inst = gclass->context.class_inst;
324 MonoTypeNameFormat nested_format;
327 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
328 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
330 if (format == MONO_TYPE_NAME_FORMAT_IL)
331 g_string_append_c (str, '<');
333 g_string_append_c (str, '[');
334 for (i = 0; i < inst->type_argc; i++) {
335 MonoType *t = inst->type_argv [i];
338 g_string_append_c (str, ',');
339 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
340 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
341 g_string_append_c (str, '[');
342 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
343 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
344 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
345 g_string_append_c (str, ']');
347 if (format == MONO_TYPE_NAME_FORMAT_IL)
348 g_string_append_c (str, '>');
350 g_string_append_c (str, ']');
351 } else if (klass->generic_container &&
352 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
353 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
356 if (format == MONO_TYPE_NAME_FORMAT_IL)
357 g_string_append_c (str, '<');
359 g_string_append_c (str, '[');
360 for (i = 0; i < klass->generic_container->type_argc; i++) {
362 g_string_append_c (str, ',');
363 g_string_append (str, klass->generic_container->type_params [i].name);
365 if (format == MONO_TYPE_NAME_FORMAT_IL)
366 g_string_append_c (str, '>');
368 g_string_append_c (str, ']');
371 mono_type_name_check_byref (type, str);
373 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
374 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
375 _mono_type_get_assembly_name (klass, str);
381 * mono_type_get_name:
383 * @format: the format for the return string.
386 * Returns: the string representation in a number of formats:
388 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
389 * returned in the formatrequired by System.Reflection, this is the
390 * inverse of mono_reflection_parse_type ().
392 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
393 * be used by the IL assembler.
395 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
397 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
400 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
404 result = g_string_new ("");
406 mono_type_get_name_recurse (type, result, FALSE, format);
408 return g_string_free (result, FALSE);
412 * mono_type_get_full_name:
415 * Returns: the string representation for type as required by System.Reflection.
416 * The inverse of mono_reflection_parse_type ().
419 mono_type_get_full_name (MonoClass *class)
421 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
425 * mono_type_get_name:
428 * Returns: the string representation for type as it would be represented in IL code.
431 mono_type_get_name (MonoType *type)
433 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
437 * mono_type_get_underlying_type:
440 * Returns: the MonoType for the underlying integer type if @type
441 * is an enum and byref is false, otherwise the type itself.
444 mono_type_get_underlying_type (MonoType *type)
446 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
447 return type->data.klass->enum_basetype;
448 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
449 return type->data.generic_class->container_class->enum_basetype;
454 * mono_class_is_open_constructed_type:
457 * Returns TRUE if type represents a generics open constructed type
458 * (not all the type parameters required for the instantiation have
462 mono_class_is_open_constructed_type (MonoType *t)
468 case MONO_TYPE_SZARRAY:
469 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
470 case MONO_TYPE_ARRAY:
471 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
473 return mono_class_is_open_constructed_type (t->data.type);
474 case MONO_TYPE_GENERICINST:
475 return t->data.generic_class->context.class_inst->is_open;
482 inflate_generic_type (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
484 switch (type->type) {
485 case MONO_TYPE_MVAR: {
487 int num = type->data.generic_param->num;
488 MonoGenericInst *inst = context->method_inst;
489 if (!inst || !inst->type_argv)
491 if (num >= inst->type_argc)
492 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
495 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
496 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
497 * ->byref and ->attrs from @type are propagated to the returned type.
499 nt = mono_metadata_type_dup (mempool, inst->type_argv [num]);
500 nt->byref = type->byref;
501 nt->attrs = type->attrs;
504 case MONO_TYPE_VAR: {
506 int num = type->data.generic_param->num;
507 MonoGenericInst *inst = context->class_inst;
510 if (num >= inst->type_argc)
511 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
512 nt = mono_metadata_type_dup (mempool, inst->type_argv [num]);
513 nt->byref = type->byref;
514 nt->attrs = type->attrs;
517 case MONO_TYPE_SZARRAY: {
518 MonoClass *eclass = type->data.klass;
519 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
522 nt = mono_metadata_type_dup (mempool, type);
523 nt->data.klass = mono_class_from_mono_type (inflated);
524 mono_metadata_free_type (inflated);
527 case MONO_TYPE_ARRAY: {
528 MonoClass *eclass = type->data.array->eklass;
529 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
532 nt = mono_metadata_type_dup (mempool, type);
533 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
534 nt->data.array->eklass = mono_class_from_mono_type (inflated);
535 mono_metadata_free_type (inflated);
538 case MONO_TYPE_GENERICINST: {
539 MonoGenericClass *gclass = type->data.generic_class;
540 MonoGenericInst *inst;
542 if (!gclass->context.class_inst->is_open)
545 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
546 if (inst != gclass->context.class_inst)
547 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
549 if (gclass == type->data.generic_class)
552 nt = mono_metadata_type_dup (mempool, type);
553 nt->data.generic_class = gclass;
556 case MONO_TYPE_CLASS:
557 case MONO_TYPE_VALUETYPE: {
558 MonoClass *klass = type->data.klass;
559 MonoGenericContainer *container = klass->generic_container;
560 MonoGenericInst *inst;
561 MonoGenericClass *gclass = NULL;
567 /* We can't use context->class_inst directly, since it can have more elements */
568 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
569 if (inst == container->context.class_inst)
572 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
574 nt = mono_metadata_type_dup (mempool, type);
575 nt->type = MONO_TYPE_GENERICINST;
576 nt->data.generic_class = gclass;
586 mono_generic_class_get_context (MonoGenericClass *gclass)
588 return &gclass->context;
592 mono_class_get_context (MonoClass *class)
594 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
598 * mono_class_inflate_generic_type_with_mempool:
599 * @mempool: a mempool
601 * @context: a generics context
603 * The same as mono_class_inflate_generic_type, but allocates the MonoType
604 * from mempool if it is non-NULL. If it is NULL, the MonoType is
605 * allocated on the heap and is owned by the caller.
608 mono_class_inflate_generic_type_with_mempool (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
610 MonoType *inflated = NULL;
613 inflated = inflate_generic_type (mempool, type, context);
616 return mono_metadata_type_dup (mempool, type);
618 mono_stats.inflated_type_count++;
623 * mono_class_inflate_generic_type:
625 * @context: a generics context
627 * If @type is a generic type and @context is not NULL, instantiate it using the
628 * generics context @context.
630 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
631 * on the heap and is owned by the caller.
634 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
636 return mono_class_inflate_generic_type_with_mempool (NULL, type, context);
640 static MonoGenericContext
641 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
643 MonoGenericInst *class_inst = NULL;
644 MonoGenericInst *method_inst = NULL;
645 MonoGenericContext res;
647 if (context->class_inst)
648 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
650 if (context->method_inst)
651 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
653 res.class_inst = class_inst;
654 res.method_inst = method_inst;
660 * mono_class_inflate_generic_method:
661 * @method: a generic method
662 * @context: a generics context
664 * Instantiate the generic method @method using the generics context @context.
666 * Returns: the new instantiated method
669 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
671 return mono_class_inflate_generic_method_full (method, NULL, context);
675 * mono_class_inflate_generic_method:
677 * Instantiate method @method with the generic context @context.
678 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
679 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
682 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
685 MonoMethodInflated *iresult, *cached;
686 MonoMethodSignature *sig;
687 MonoGenericContext tmp_context;
688 gboolean is_mb_open = FALSE;
690 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
691 while (method->is_inflated) {
692 MonoGenericContext *method_context = mono_method_get_context (method);
693 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
695 tmp_context = inflate_generic_context (method_context, context);
696 context = &tmp_context;
698 if (mono_metadata_generic_context_equal (method_context, context))
701 method = imethod->declaring;
704 if (!method->is_generic && !method->klass->generic_container)
708 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
709 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
710 * This is opposite to the way non-SRE MethodInfos behave.
712 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
714 * void Example<T> () {
718 * In Example, the method token must be encoded as: "void Example<!!0>()"
720 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
721 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
723 * On the other hand, inflating a non-SRE generic method with its own arguments should
724 * return itself. For example:
726 * MethodInfo m = ... //m is a generic method definition
727 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
730 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
731 * what happens with regular methods.
733 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
734 * everything should behave like a regular type or method.
737 is_mb_open = method->is_generic &&
738 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
739 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
741 iresult = g_new0 (MonoMethodInflated, 1);
742 iresult->context = *context;
743 iresult->declaring = method;
744 iresult->is_mb_open = is_mb_open;
746 if (!context->method_inst && method->is_generic)
747 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
749 if (!context->class_inst) {
750 g_assert (!iresult->declaring->klass->generic_class);
751 if (iresult->declaring->klass->generic_container)
752 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
753 else if (iresult->declaring->klass->generic_class)
754 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
758 cached = mono_method_inflated_lookup (iresult, FALSE);
760 mono_loader_unlock ();
762 return (MonoMethod*)cached;
765 mono_stats.inflated_method_count++;
767 sig = mono_method_signature (method);
769 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
771 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
772 iresult->method.normal.header = NULL;
775 result = (MonoMethod *) iresult;
776 result->is_inflated = TRUE;
777 result->is_generic = FALSE;
778 result->signature = NULL;
780 if (!context->method_inst) {
781 /* Set the generic_container of the result to the generic_container of method */
782 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
784 if (generic_container) {
785 result->is_generic = 1;
786 mono_method_set_generic_container (result, generic_container);
790 if (!klass_hint || !klass_hint->generic_class ||
791 klass_hint->generic_class->container_class != method->klass ||
792 klass_hint->generic_class->context.class_inst != context->class_inst)
795 if (method->klass->generic_container)
796 result->klass = klass_hint;
798 if (!result->klass) {
799 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context);
800 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
802 mono_metadata_free_type (inflated);
805 mono_method_inflated_lookup (iresult, TRUE);
806 mono_loader_unlock ();
811 * mono_get_inflated_method:
813 * Obsolete. We keep it around since it's mentioned in the public API.
816 mono_get_inflated_method (MonoMethod *method)
822 mono_method_get_context (MonoMethod *method)
824 MonoMethodInflated *imethod;
825 if (!method->is_inflated)
827 imethod = (MonoMethodInflated *) method;
828 return &imethod->context;
832 * mono_method_get_generic_container:
834 * Returns the generic container of METHOD, which should be a generic method definition.
835 * Returns NULL if METHOD is not a generic method definition.
836 * LOCKING: Acquires the loader lock.
838 MonoGenericContainer*
839 mono_method_get_generic_container (MonoMethod *method)
841 MonoGenericContainer *container;
843 if (!method->is_generic)
847 container = mono_property_hash_lookup (method->klass->image->property_hash, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
848 mono_loader_unlock ();
849 g_assert (container);
855 * mono_method_set_generic_container:
857 * Sets the generic container of METHOD to CONTAINER.
858 * LOCKING: Acquires the loader lock.
861 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
863 g_assert (method->is_generic);
866 mono_property_hash_insert (method->klass->image->property_hash, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
867 mono_loader_unlock ();
871 * mono_class_find_enum_basetype:
872 * @class: The enum class
874 * Determine the basetype of an enum by iterating through its fields. We do this
875 * in a separate function since it is cheaper than calling mono_class_setup_fields.
878 mono_class_find_enum_basetype (MonoClass *class)
880 MonoImage *m = class->image;
881 const int top = class->field.count;
884 g_assert (class->enumtype);
887 * Fetch all the field information.
889 for (i = 0; i < top; i++){
891 guint32 cols [MONO_FIELD_SIZE];
892 int idx = class->field.first + i;
893 MonoGenericContainer *container = NULL;
896 /* class->field.first and idx points into the fieldptr table */
897 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
898 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
899 mono_metadata_decode_value (sig, &sig);
900 /* FIELD signature == 0x06 */
901 g_assert (*sig == 0x06);
902 if (class->generic_container)
903 container = class->generic_container;
904 else if (class->generic_class) {
905 MonoClass *gklass = class->generic_class->container_class;
907 container = gklass->generic_container;
908 g_assert (container);
910 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
913 if (class->generic_class) {
914 //FIXME do we leak here?
915 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
916 ftype->attrs = cols [MONO_FIELD_FLAGS];
919 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
927 * mono_class_setup_fields:
928 * @class: The class to initialize
930 * Initializes the class->fields.
931 * LOCKING: Assumes the loader lock is held.
934 mono_class_setup_fields (MonoClass *class)
936 MonoImage *m = class->image;
937 int top = class->field.count;
938 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
939 int i, blittable = TRUE;
940 guint32 real_size = 0;
941 guint32 packing_size = 0;
942 gboolean explicit_size;
943 MonoClassField *field;
944 MonoGenericContainer *container = NULL;
945 MonoClass *gklass = NULL;
947 if (class->size_inited)
950 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
952 * This happens when a generic instance of an unfinished generic typebuilder
953 * is used as an element type for creating an array type. We can't initialize
954 * the fields of this class using the fields of gklass, since gklass is not
955 * finished yet, fields could be added to it later.
960 if (class->generic_class) {
961 MonoClass *gklass = class->generic_class->container_class;
962 mono_class_setup_fields (gklass);
963 top = gklass->field.count;
964 class->field.count = gklass->field.count;
967 class->instance_size = 0;
969 class->sizes.class_size = 0;
972 /* For generic instances, class->parent might not have been initialized */
973 mono_class_init (class->parent);
974 if (!class->parent->size_inited)
975 mono_class_setup_fields (class->parent);
976 class->instance_size += class->parent->instance_size;
977 class->min_align = class->parent->min_align;
978 /* we use |= since it may have been set already */
979 class->has_references |= class->parent->has_references;
980 blittable = class->parent->blittable;
982 class->instance_size = sizeof (MonoObject);
983 class->min_align = 1;
986 /* Get the real size */
987 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
990 g_assert ((packing_size & 0xfffffff0) == 0);
991 class->packing_size = packing_size;
992 real_size += class->instance_size;
996 if (explicit_size && real_size) {
997 class->instance_size = MAX (real_size, class->instance_size);
999 class->size_inited = 1;
1000 class->blittable = blittable;
1004 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1007 /* Prevent infinite loops if the class references itself */
1008 class->size_inited = 1;
1010 class->fields = mono_image_alloc0 (class->image, sizeof (MonoClassField) * top);
1012 if (class->generic_container) {
1013 container = class->generic_container;
1014 } else if (class->generic_class) {
1015 gklass = class->generic_class->container_class;
1016 container = gklass->generic_container;
1017 g_assert (container);
1019 mono_class_setup_fields (gklass);
1023 * Fetch all the field information.
1025 for (i = 0; i < top; i++){
1026 int idx = class->field.first + i;
1027 field = &class->fields [i];
1029 field->parent = class;
1031 if (class->generic_class) {
1032 MonoClassField *gfield = &gklass->fields [i];
1033 MonoInflatedField *ifield = g_new0 (MonoInflatedField, 1);
1035 ifield->generic_type = gfield->type;
1036 field->name = gfield->name;
1037 field->generic_info = ifield;
1038 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1039 field->type = mono_class_inflate_generic_type_with_mempool (class->image->mempool, gfield->type, mono_class_get_context (class));
1040 field->type->attrs = gfield->type->attrs;
1041 if (mono_field_is_deleted (field))
1043 field->offset = gfield->offset;
1044 field->data = gfield->data;
1048 guint32 cols [MONO_FIELD_SIZE];
1050 /* class->field.first and idx points into the fieldptr table */
1051 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1052 /* The name is needed for fieldrefs */
1053 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1054 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1055 mono_metadata_decode_value (sig, &sig);
1056 /* FIELD signature == 0x06 */
1057 g_assert (*sig == 0x06);
1058 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1060 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1063 if (mono_field_is_deleted (field))
1065 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1067 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1068 field->offset = offset;
1069 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1070 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1071 class->name, field->name);
1074 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
1075 mono_metadata_field_info (m, idx, NULL, &rva, NULL);
1077 g_warning ("field %s in %s should have RVA data, but hasn't", field->name, class->name);
1078 field->data = mono_image_rva_map (class->image, rva);
1082 /* Only do these checks if we still think this type is blittable */
1083 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1084 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1087 MonoClass *field_class = mono_class_from_mono_type (field->type);
1089 mono_class_setup_fields (field_class);
1090 if (!field_class || !field_class->blittable)
1095 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1096 class->enum_basetype = field->type;
1097 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
1098 blittable = class->element_class->blittable;
1101 /* The def_value of fields is compute lazily during vtable creation */
1104 if (class == mono_defaults.string_class)
1107 class->blittable = blittable;
1109 if (class->enumtype && !class->enum_basetype) {
1110 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1113 if (explicit_size && real_size) {
1114 class->instance_size = MAX (real_size, class->instance_size);
1117 if (class->exception_type)
1119 mono_class_layout_fields (class);
1123 * mono_class_setup_fields_locking:
1124 * @class: The class to initialize
1126 * Initializes the class->fields array of fields.
1127 * Aquires the loader lock.
1130 mono_class_setup_fields_locking (MonoClass *class)
1132 mono_loader_lock ();
1133 mono_class_setup_fields (class);
1134 mono_loader_unlock ();
1138 * mono_class_has_references:
1140 * Returns whenever @klass->has_references is set, initializing it if needed.
1141 * Aquires the loader lock.
1144 mono_class_has_references (MonoClass *klass)
1146 if (klass->init_pending) {
1147 /* Be conservative */
1150 mono_class_init (klass);
1152 return klass->has_references;
1156 /* useful until we keep track of gc-references in corlib etc. */
1158 #define IS_GC_REFERENCE(t) FALSE
1160 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1164 * mono_type_get_basic_type_from_generic:
1167 * Returns a closed type corresponding to the possibly open type
1171 mono_type_get_basic_type_from_generic (MonoType *type)
1173 /* When we do generic sharing we let type variables stand for reference types. */
1174 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1175 return &mono_defaults.object_class->byval_arg;
1180 * mono_class_layout_fields:
1183 * Compute the placement of fields inside an object or struct, according to
1184 * the layout rules and set the following fields in @class:
1185 * - has_references (if the class contains instance references firled or structs that contain references)
1186 * - has_static_refs (same, but for static fields)
1187 * - instance_size (size of the object in memory)
1188 * - class_size (size needed for the static fields)
1189 * - size_inited (flag set when the instance_size is set)
1191 * LOCKING: this is supposed to be called with the loader lock held.
1194 mono_class_layout_fields (MonoClass *class)
1197 const int top = class->field.count;
1198 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1199 guint32 pass, passes, real_size;
1200 gboolean gc_aware_layout = FALSE;
1201 MonoClassField *field;
1204 * When we do generic sharing we need to have layout
1205 * information for open generic classes (either with a generic
1206 * context containing type variables or with a generic
1207 * container), so we don't return in that case anymore.
1211 * Enable GC aware auto layout: in this mode, reference
1212 * fields are grouped together inside objects, increasing collector
1214 * Requires that all classes whose layout is known to native code be annotated
1215 * with [StructLayout (LayoutKind.Sequential)]
1216 * Value types have gc_aware_layout disabled by default, as per
1217 * what the default is for other runtimes.
1219 /* corlib is missing [StructLayout] directives in many places */
1220 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1221 if (class->image != mono_defaults.corlib &&
1222 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1223 gc_aware_layout = TRUE;
1224 /* from System.dll, used in metadata/process.h */
1225 if (strcmp (class->name, "ProcessStartInfo") == 0)
1226 gc_aware_layout = FALSE;
1229 /* Compute klass->has_references */
1231 * Process non-static fields first, since static fields might recursively
1232 * refer to the class itself.
1234 for (i = 0; i < top; i++) {
1237 field = &class->fields [i];
1239 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1240 ftype = mono_type_get_underlying_type (field->type);
1241 ftype = mono_type_get_basic_type_from_generic (ftype);
1242 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1243 class->has_references = TRUE;
1247 for (i = 0; i < top; i++) {
1250 field = &class->fields [i];
1252 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1253 ftype = mono_type_get_underlying_type (field->type);
1254 ftype = mono_type_get_basic_type_from_generic (ftype);
1255 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1256 class->has_static_refs = TRUE;
1260 for (i = 0; i < top; i++) {
1263 field = &class->fields [i];
1265 ftype = mono_type_get_underlying_type (field->type);
1266 ftype = mono_type_get_basic_type_from_generic (ftype);
1267 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1268 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1269 class->has_static_refs = TRUE;
1271 class->has_references = TRUE;
1276 * Compute field layout and total size (not considering static fields)
1280 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1281 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1283 if (gc_aware_layout)
1288 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1292 real_size = class->parent->instance_size;
1294 real_size = sizeof (MonoObject);
1296 for (pass = 0; pass < passes; ++pass) {
1297 for (i = 0; i < top; i++){
1302 field = &class->fields [i];
1304 if (mono_field_is_deleted (field))
1306 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1309 ftype = mono_type_get_underlying_type (field->type);
1310 ftype = mono_type_get_basic_type_from_generic (ftype);
1311 if (gc_aware_layout) {
1312 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1321 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1322 (strcmp (field->name, "$PRIVATE$") == 0)) {
1323 /* This field is a hack inserted by MCS to empty structures */
1327 size = mono_type_size (field->type, &align);
1329 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1330 align = class->packing_size ? MIN (class->packing_size, align): align;
1331 /* if the field has managed references, we need to force-align it
1334 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1335 align = MAX (align, sizeof (gpointer));
1337 class->min_align = MAX (align, class->min_align);
1338 field->offset = real_size;
1339 field->offset += align - 1;
1340 field->offset &= ~(align - 1);
1341 real_size = field->offset + size;
1344 class->instance_size = MAX (real_size, class->instance_size);
1346 if (class->instance_size & (class->min_align - 1)) {
1347 class->instance_size += class->min_align - 1;
1348 class->instance_size &= ~(class->min_align - 1);
1352 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1354 for (i = 0; i < top; i++) {
1359 field = &class->fields [i];
1362 * There must be info about all the fields in a type if it
1363 * uses explicit layout.
1366 if (mono_field_is_deleted (field))
1368 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1371 size = mono_type_size (field->type, &align);
1372 class->min_align = MAX (align, class->min_align);
1375 * When we get here, field->offset is already set by the
1376 * loader (for either runtime fields or fields loaded from metadata).
1377 * The offset is from the start of the object: this works for both
1378 * classes and valuetypes.
1380 field->offset += sizeof (MonoObject);
1381 ftype = mono_type_get_underlying_type (field->type);
1382 ftype = mono_type_get_basic_type_from_generic (ftype);
1383 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1384 if (field->offset % sizeof (gpointer)) {
1385 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1392 real_size = MAX (real_size, size + field->offset);
1394 class->instance_size = MAX (real_size, class->instance_size);
1398 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1400 * For small structs, set min_align to at least the struct size to improve
1401 * performance, and since the JIT memset/memcpy code assumes this and generates
1402 * unaligned accesses otherwise. See #78990 for a testcase.
1404 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1405 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1408 class->size_inited = 1;
1411 * Compute static field layout and size
1413 for (i = 0; i < top; i++){
1417 field = &class->fields [i];
1419 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1421 if (mono_field_is_deleted (field))
1424 size = mono_type_size (field->type, &align);
1425 field->offset = class->sizes.class_size;
1426 field->offset += align - 1;
1427 field->offset &= ~(align - 1);
1428 class->sizes.class_size = field->offset + size;
1433 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1437 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1438 method->klass = class;
1439 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1440 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1441 method->signature = sig;
1442 method->name = name;
1445 if (name [0] == '.') {
1446 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1448 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1454 * mono_class_setup_methods:
1457 * Initializes the 'methods' array in the klass.
1458 * Calling this method should be avoided if possible since it allocates a lot
1459 * of long-living MonoMethod structures.
1460 * Methods belonging to an interface are assigned a sequential slot starting
1464 mono_class_setup_methods (MonoClass *class)
1467 MonoMethod **methods;
1472 mono_loader_lock ();
1474 if (class->methods) {
1475 mono_loader_unlock ();
1479 if (class->generic_class) {
1480 MonoClass *gklass = class->generic_class->container_class;
1482 mono_class_init (gklass);
1483 mono_class_setup_methods (gklass);
1485 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1486 class->method.count = gklass->method.count;
1487 methods = g_new0 (MonoMethod *, class->method.count + 1);
1489 for (i = 0; i < class->method.count; i++) {
1490 methods [i] = mono_class_inflate_generic_method_full (
1491 gklass->methods [i], class, mono_class_get_context (class));
1493 } else if (class->rank) {
1494 MonoMethod *amethod;
1495 MonoMethodSignature *sig;
1496 int count_generic = 0, first_generic = 0;
1499 class->method.count = 3 + (class->rank > 1? 2: 1);
1501 if (class->interface_count) {
1502 count_generic = generic_array_methods (class);
1503 first_generic = class->method.count;
1504 class->method.count += class->interface_count * count_generic;
1507 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1509 sig = mono_metadata_signature_alloc (class->image, class->rank);
1510 sig->ret = &mono_defaults.void_class->byval_arg;
1511 sig->pinvoke = TRUE;
1512 sig->hasthis = TRUE;
1513 for (i = 0; i < class->rank; ++i)
1514 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1516 amethod = create_array_method (class, ".ctor", sig);
1517 methods [method_num++] = amethod;
1518 if (class->rank > 1) {
1519 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1520 sig->ret = &mono_defaults.void_class->byval_arg;
1521 sig->pinvoke = TRUE;
1522 sig->hasthis = TRUE;
1523 for (i = 0; i < class->rank * 2; ++i)
1524 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1526 amethod = create_array_method (class, ".ctor", sig);
1527 methods [method_num++] = amethod;
1529 /* element Get (idx11, [idx2, ...]) */
1530 sig = mono_metadata_signature_alloc (class->image, class->rank);
1531 sig->ret = &class->element_class->byval_arg;
1532 sig->pinvoke = TRUE;
1533 sig->hasthis = TRUE;
1534 for (i = 0; i < class->rank; ++i)
1535 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1536 amethod = create_array_method (class, "Get", sig);
1537 methods [method_num++] = amethod;
1538 /* element& Address (idx11, [idx2, ...]) */
1539 sig = mono_metadata_signature_alloc (class->image, class->rank);
1540 sig->ret = &class->element_class->this_arg;
1541 sig->pinvoke = TRUE;
1542 sig->hasthis = TRUE;
1543 for (i = 0; i < class->rank; ++i)
1544 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1545 amethod = create_array_method (class, "Address", sig);
1546 methods [method_num++] = amethod;
1547 /* void Set (idx11, [idx2, ...], element) */
1548 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1549 sig->ret = &mono_defaults.void_class->byval_arg;
1550 sig->pinvoke = TRUE;
1551 sig->hasthis = TRUE;
1552 for (i = 0; i < class->rank; ++i)
1553 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1554 sig->params [i] = &class->element_class->byval_arg;
1555 amethod = create_array_method (class, "Set", sig);
1556 methods [method_num++] = amethod;
1558 for (i = 0; i < class->interface_count; i++)
1559 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1561 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1562 for (i = 0; i < class->method.count; ++i) {
1563 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1564 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1568 if (MONO_CLASS_IS_INTERFACE (class))
1569 for (i = 0; i < class->method.count; ++i)
1570 methods [i]->slot = i;
1572 /* Needed because of the double-checking locking pattern */
1573 mono_memory_barrier ();
1575 class->methods = methods;
1577 if (mono_debugger_class_loaded_methods_func)
1578 mono_debugger_class_loaded_methods_func (class);
1580 mono_loader_unlock ();
1584 * mono_class_get_method_by_index:
1586 * Returns class->methods [index], initializing class->methods if neccesary.
1588 * LOCKING: Acquires the loader lock.
1591 mono_class_get_method_by_index (MonoClass *class, int index)
1593 /* Avoid calling setup_methods () if possible */
1594 if (class->generic_class && !class->methods) {
1595 MonoClass *gklass = class->generic_class->container_class;
1598 m = mono_class_inflate_generic_method_full (
1599 gklass->methods [index], class, mono_class_get_context (class));
1601 * If setup_methods () is called later for this class, no duplicates are created,
1602 * since inflate_generic_method guarantees that only one instance of a method
1603 * is created for each context.
1606 mono_class_setup_methods (class);
1607 g_assert (m == class->methods [index]);
1611 mono_class_setup_methods (class);
1612 g_assert (index >= 0 && index < class->method.count);
1613 return class->methods [index];
1618 mono_class_setup_properties (MonoClass *class)
1620 guint startm, endm, i, j;
1621 guint32 cols [MONO_PROPERTY_SIZE];
1622 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1623 MonoProperty *properties;
1626 if (class->properties)
1629 mono_loader_lock ();
1631 if (class->properties) {
1632 mono_loader_unlock ();
1636 if (class->generic_class) {
1637 MonoClass *gklass = class->generic_class->container_class;
1639 class->property = gklass->property;
1641 mono_class_init (gklass);
1642 mono_class_setup_properties (gklass);
1644 properties = g_new0 (MonoProperty, class->property.count + 1);
1646 for (i = 0; i < class->property.count; i++) {
1647 MonoProperty *prop = &properties [i];
1649 *prop = gklass->properties [i];
1652 prop->get = mono_class_inflate_generic_method_full (
1653 prop->get, class, mono_class_get_context (class));
1655 prop->set = mono_class_inflate_generic_method_full (
1656 prop->set, class, mono_class_get_context (class));
1658 prop->parent = class;
1661 class->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1662 class->property.count = last - class->property.first;
1664 if (class->property.count)
1665 mono_class_setup_methods (class);
1667 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->property.count);
1668 for (i = class->property.first; i < last; ++i) {
1669 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1670 properties [i - class->property.first].parent = class;
1671 properties [i - class->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1672 properties [i - class->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1674 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1675 for (j = startm; j < endm; ++j) {
1678 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1680 if (class->image->uncompressed_metadata)
1681 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1682 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1684 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1686 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1687 case METHOD_SEMANTIC_SETTER:
1688 properties [i - class->property.first].set = method;
1690 case METHOD_SEMANTIC_GETTER:
1691 properties [i - class->property.first].get = method;
1699 /*Flush any pending writes as we do double checked locking on class->properties */
1700 mono_memory_barrier ();
1702 /* Leave this assignment as the last op in the function */
1703 class->properties = properties;
1705 mono_loader_unlock ();
1709 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1711 MonoMethod **om, **retval;
1714 for (om = methods, count = 0; *om; ++om, ++count)
1717 retval = g_new0 (MonoMethod*, count + 1);
1719 for (om = methods, count = 0; *om; ++om, ++count)
1720 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1726 mono_class_setup_events (MonoClass *class)
1728 guint startm, endm, i, j;
1729 guint32 cols [MONO_EVENT_SIZE];
1730 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1737 mono_loader_lock ();
1739 if (class->events) {
1740 mono_loader_unlock ();
1744 if (class->generic_class) {
1745 MonoClass *gklass = class->generic_class->container_class;
1746 MonoGenericContext *context;
1748 mono_class_setup_events (gklass);
1749 class->event = gklass->event;
1751 class->events = g_new0 (MonoEvent, class->event.count);
1753 if (class->event.count)
1754 context = mono_class_get_context (class);
1756 for (i = 0; i < class->event.count; i++) {
1757 MonoEvent *event = &class->events [i];
1758 MonoEvent *gevent = &gklass->events [i];
1760 event->parent = class;
1761 event->name = gevent->name;
1762 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1763 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1764 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1765 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1766 event->attrs = gevent->attrs;
1769 mono_loader_unlock ();
1773 class->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1774 class->event.count = last - class->event.first;
1776 if (class->event.count)
1777 mono_class_setup_methods (class);
1779 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->event.count);
1780 for (i = class->event.first; i < last; ++i) {
1781 MonoEvent *event = &events [i - class->event.first];
1783 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1784 event->parent = class;
1785 event->attrs = cols [MONO_EVENT_FLAGS];
1786 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1788 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1789 for (j = startm; j < endm; ++j) {
1792 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1794 if (class->image->uncompressed_metadata)
1795 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1796 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1798 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1800 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1801 case METHOD_SEMANTIC_ADD_ON:
1802 event->add = method;
1804 case METHOD_SEMANTIC_REMOVE_ON:
1805 event->remove = method;
1807 case METHOD_SEMANTIC_FIRE:
1808 event->raise = method;
1810 case METHOD_SEMANTIC_OTHER: {
1813 if (event->other == NULL) {
1814 event->other = g_new0 (MonoMethod*, 2);
1816 while (event->other [n])
1818 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1820 event->other [n] = method;
1821 /* NULL terminated */
1822 event->other [n + 1] = NULL;
1830 /*Flush any pending writes as we do double checked locking on class->properties */
1831 mono_memory_barrier ();
1833 /* Leave this assignment as the last op in the function */
1834 class->events = events;
1836 mono_loader_unlock ();
1840 * Global pool of interface IDs, represented as a bitset.
1841 * LOCKING: this is supposed to be accessed with the loader lock held.
1843 static MonoBitSet *global_interface_bitset = NULL;
1846 * mono_unload_interface_ids:
1847 * @bitset: bit set of interface IDs
1849 * When an image is unloaded, the interface IDs associated with
1850 * the image are put back in the global pool of IDs so the numbers
1854 mono_unload_interface_ids (MonoBitSet *bitset)
1856 mono_loader_lock ();
1857 mono_bitset_sub (global_interface_bitset, bitset);
1858 mono_loader_unlock ();
1862 * mono_get_unique_iid:
1865 * Assign a unique integer ID to the interface represented by @class.
1866 * The ID will positive and as small as possible.
1867 * LOCKING: this is supposed to be called with the loader lock held.
1868 * Returns: the new ID.
1871 mono_get_unique_iid (MonoClass *class)
1875 g_assert (MONO_CLASS_IS_INTERFACE (class));
1877 if (!global_interface_bitset) {
1878 global_interface_bitset = mono_bitset_new (128, 0);
1881 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
1883 int old_size = mono_bitset_size (global_interface_bitset);
1884 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
1885 mono_bitset_free (global_interface_bitset);
1886 global_interface_bitset = new_set;
1889 mono_bitset_set (global_interface_bitset, iid);
1890 /* set the bit also in the per-image set */
1891 if (class->image->interface_bitset) {
1892 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
1893 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
1894 mono_bitset_free (class->image->interface_bitset);
1895 class->image->interface_bitset = new_set;
1898 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
1900 mono_bitset_set (class->image->interface_bitset, iid);
1902 if (mono_print_vtable) {
1904 char *type_name = mono_type_full_name (&class->byval_arg);
1905 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
1906 generic_id = class->generic_class->context.class_inst->id;
1907 g_assert (generic_id != 0);
1911 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
1915 g_assert (iid <= 65535);
1920 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
1925 for (i = 0; i < klass->interface_count; i++) {
1926 ic = klass->interfaces [i];
1929 *res = g_ptr_array_new ();
1930 g_ptr_array_add (*res, ic);
1931 mono_class_init (ic);
1933 collect_implemented_interfaces_aux (ic, res);
1938 mono_class_get_implemented_interfaces (MonoClass *klass)
1940 GPtrArray *res = NULL;
1942 collect_implemented_interfaces_aux (klass, &res);
1947 compare_interface_ids (const void *p_key, const void *p_element) {
1948 const MonoClass *key = p_key;
1949 const MonoClass *element = *(MonoClass**) p_element;
1951 return (key->interface_id - element->interface_id);
1955 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
1956 MonoClass **result = bsearch (
1958 klass->interfaces_packed,
1959 klass->interface_offsets_count,
1960 sizeof (MonoClass *),
1961 compare_interface_ids);
1963 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
1970 print_implemented_interfaces (MonoClass *klass) {
1971 GPtrArray *ifaces = NULL;
1973 int ancestor_level = 0;
1975 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
1976 for (i = 0; i < klass->interface_offsets_count; i++)
1977 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
1978 klass->interfaces_packed [i]->interface_id,
1979 klass->interface_offsets_packed [i],
1980 klass->interfaces_packed [i]->method.count,
1981 klass->interfaces_packed [i]->name_space,
1982 klass->interfaces_packed [i]->name );
1983 printf ("Interface flags: ");
1984 for (i = 0; i <= klass->max_interface_id; i++)
1985 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
1986 printf ("(%d,T)", i);
1988 printf ("(%d,F)", i);
1990 printf ("Dump interface flags:");
1991 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
1992 printf (" %02X", klass->interface_bitmap [i]);
1994 while (klass != NULL) {
1995 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
1996 ifaces = mono_class_get_implemented_interfaces (klass);
1998 for (i = 0; i < ifaces->len; i++) {
1999 MonoClass *ic = g_ptr_array_index (ifaces, i);
2000 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2001 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2003 mono_class_interface_offset (klass, ic),
2008 g_ptr_array_free (ifaces, TRUE);
2011 klass = klass->parent;
2015 /* this won't be needed once bug #325495 is completely fixed
2016 * though we'll need something similar to know which interfaces to allow
2017 * in arrays when they'll be lazyly created
2020 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2022 MonoClass *eclass = class->element_class;
2023 static MonoClass* generic_icollection_class = NULL;
2024 static MonoClass* generic_ienumerable_class = NULL;
2025 static MonoClass* generic_ienumerator_class = NULL;
2026 MonoClass *fclass = NULL;
2027 MonoClass **interfaces = NULL;
2028 int i, interface_count, real_count;
2030 gboolean internal_enumerator;
2031 gboolean eclass_is_valuetype;
2033 if (!mono_defaults.generic_ilist_class) {
2037 internal_enumerator = FALSE;
2038 eclass_is_valuetype = FALSE;
2039 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2040 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2042 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2044 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2045 eclass = eclass->element_class;
2046 internal_enumerator = TRUE;
2047 *is_enumerator = TRUE;
2055 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2056 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2058 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2060 if (!generic_icollection_class) {
2061 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2062 "System.Collections.Generic", "ICollection`1");
2063 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2064 "System.Collections.Generic", "IEnumerable`1");
2065 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2066 "System.Collections.Generic", "IEnumerator`1");
2069 mono_class_init (eclass);
2072 * Arrays in 2.0 need to implement a number of generic interfaces
2073 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2074 * on the element class). We collect the types needed to build the
2075 * instantiations in interfaces at intervals of 3, because 3 are
2076 * the generic interfaces needed to implement.
2078 if (eclass->valuetype) {
2079 if (eclass == mono_defaults.int16_class)
2080 fclass = mono_defaults.uint16_class;
2081 else if (eclass == mono_defaults.uint16_class)
2082 fclass = mono_defaults.int16_class;
2083 else if (eclass == mono_defaults.int32_class)
2084 fclass = mono_defaults.uint32_class;
2085 else if (eclass == mono_defaults.uint32_class)
2086 fclass = mono_defaults.int32_class;
2087 else if (eclass == mono_defaults.int64_class)
2088 fclass = mono_defaults.uint64_class;
2089 else if (eclass == mono_defaults.uint64_class)
2090 fclass = mono_defaults.int64_class;
2091 else if (eclass == mono_defaults.byte_class)
2092 fclass = mono_defaults.sbyte_class;
2093 else if (eclass == mono_defaults.sbyte_class)
2094 fclass = mono_defaults.byte_class;
2096 /* No additional interfaces for other value types */
2101 /* IList, ICollection, IEnumerable */
2102 real_count = interface_count = 3;
2103 interfaces = g_malloc0 (sizeof (MonoClass*) * interface_count);
2104 interfaces [0] = fclass;
2105 eclass_is_valuetype = TRUE;
2108 int idepth = eclass->idepth;
2109 if (!internal_enumerator)
2111 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2112 /* we add object for interfaces and the supertypes for the other
2113 * types. The last of the supertypes is the element class itself which we
2114 * already created the explicit interfaces for (so we include it for IEnumerator
2115 * and exclude it for arrays).
2117 if (MONO_CLASS_IS_INTERFACE (eclass))
2120 interface_count += idepth;
2121 /* IList, ICollection, IEnumerable */
2122 interface_count *= 3;
2123 real_count = interface_count;
2124 if (internal_enumerator)
2125 real_count += idepth + eclass->interface_offsets_count;
2126 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2127 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2128 interfaces [0] = mono_defaults.object_class;
2132 for (i = 0; i < idepth; i++) {
2133 mono_class_init (eclass->supertypes [i]);
2134 interfaces [j] = eclass->supertypes [i];
2138 if (all_interfaces) {
2139 for (i = 0; i < eclass->interface_offsets_count; i++) {
2140 interfaces [j] = eclass->interfaces_packed [i];
2144 for (i = 0; i < eclass->interface_count; i++) {
2145 interfaces [j] = eclass->interfaces [i];
2151 /* instantiate the generic interfaces */
2152 for (i = 0; i < interface_count; i += 3) {
2154 MonoClass *iface = interfaces [i];
2156 args [0] = &iface->byval_arg;
2157 interfaces [i] = mono_class_bind_generic_parameters (
2158 mono_defaults.generic_ilist_class, 1, args, FALSE);
2159 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));
2160 args [0] = &iface->byval_arg;
2161 interfaces [i + 1] = mono_class_bind_generic_parameters (
2162 generic_icollection_class, 1, args, FALSE);
2163 args [0] = &iface->byval_arg;
2164 interfaces [i + 2] = mono_class_bind_generic_parameters (
2165 generic_ienumerable_class, 1, args, FALSE);
2166 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 1]->byval_arg, 0));
2167 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 2]->byval_arg, 0));
2169 if (internal_enumerator) {
2171 /* instantiate IEnumerator<iface> */
2172 for (i = 0; i < interface_count; i++) {
2174 MonoClass *iface = interfaces [i];
2176 args [0] = &iface->byval_arg;
2177 interfaces [i] = mono_class_bind_generic_parameters (
2178 generic_ienumerator_class, 1, args, FALSE);
2179 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2181 if (!eclass_is_valuetype) {
2182 j = interface_count;
2183 for (i = 0; i < eclass->idepth; i++) {
2185 args [0] = &eclass->supertypes [i]->byval_arg;
2186 interfaces [j] = mono_class_bind_generic_parameters (
2187 generic_ienumerator_class, 1, args, FALSE);
2188 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2191 for (i = 0; i < eclass->interface_offsets_count; i++) {
2192 MonoClass *iface = eclass->interfaces_packed [i];
2194 args [0] = &iface->byval_arg;
2195 interfaces [j] = mono_class_bind_generic_parameters (
2196 generic_ienumerator_class, 1, args, FALSE);
2197 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2207 * LOCKING: this is supposed to be called with the loader lock held.
2210 setup_interface_offsets (MonoClass *class, int cur_slot)
2214 MonoClass **interfaces_full;
2215 int *interface_offsets_full;
2217 int interface_offsets_count;
2218 MonoClass **array_interfaces;
2219 int num_array_interfaces;
2220 int is_enumerator = FALSE;
2223 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2224 * implicit interfaces have the property that they are assigned the same slot in the
2225 * vtables for compatible interfaces
2227 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2229 /* compute maximum number of slots and maximum interface id */
2231 for (k = class; k ; k = k->parent) {
2232 for (i = 0; i < k->interface_count; i++) {
2233 ic = k->interfaces [i];
2236 mono_class_init (ic);
2238 if (max_iid < ic->interface_id)
2239 max_iid = ic->interface_id;
2241 ifaces = mono_class_get_implemented_interfaces (k);
2243 for (i = 0; i < ifaces->len; ++i) {
2244 ic = g_ptr_array_index (ifaces, i);
2245 if (max_iid < ic->interface_id)
2246 max_iid = ic->interface_id;
2248 g_ptr_array_free (ifaces, TRUE);
2251 for (i = 0; i < num_array_interfaces; ++i) {
2252 ic = array_interfaces [i];
2253 mono_class_init (ic);
2254 if (max_iid < ic->interface_id)
2255 max_iid = ic->interface_id;
2258 if (MONO_CLASS_IS_INTERFACE (class)) {
2259 if (max_iid < class->interface_id)
2260 max_iid = class->interface_id;
2262 class->max_interface_id = max_iid;
2263 /* compute vtable offset for interfaces */
2264 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2265 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2267 for (i = 0; i <= max_iid; i++) {
2268 interfaces_full [i] = NULL;
2269 interface_offsets_full [i] = -1;
2272 ifaces = mono_class_get_implemented_interfaces (class);
2274 for (i = 0; i < ifaces->len; ++i) {
2275 ic = g_ptr_array_index (ifaces, i);
2276 interfaces_full [ic->interface_id] = ic;
2277 interface_offsets_full [ic->interface_id] = cur_slot;
2278 cur_slot += ic->method.count;
2280 g_ptr_array_free (ifaces, TRUE);
2283 for (k = class->parent; k ; k = k->parent) {
2284 ifaces = mono_class_get_implemented_interfaces (k);
2286 for (i = 0; i < ifaces->len; ++i) {
2287 ic = g_ptr_array_index (ifaces, i);
2289 if (interface_offsets_full [ic->interface_id] == -1) {
2290 int io = mono_class_interface_offset (k, ic);
2294 interfaces_full [ic->interface_id] = ic;
2295 interface_offsets_full [ic->interface_id] = io;
2298 g_ptr_array_free (ifaces, TRUE);
2302 if (MONO_CLASS_IS_INTERFACE (class)) {
2303 interfaces_full [class->interface_id] = class;
2304 interface_offsets_full [class->interface_id] = cur_slot;
2307 if (num_array_interfaces) {
2308 if (is_enumerator) {
2309 int ienumerator_offset;
2310 g_assert (strcmp (class->interfaces [0]->name, "IEnumerator`1") == 0);
2311 ienumerator_offset = interface_offsets_full [class->interfaces [0]->interface_id];
2312 for (i = 0; i < num_array_interfaces; ++i) {
2313 ic = array_interfaces [i];
2314 interfaces_full [ic->interface_id] = ic;
2315 if (strcmp (ic->name, "IEnumerator`1") == 0)
2316 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2318 g_assert_not_reached ();
2319 /*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);*/
2322 int ilist_offset, icollection_offset, ienumerable_offset;
2323 g_assert (strcmp (class->interfaces [0]->name, "IList`1") == 0);
2324 g_assert (strcmp (class->interfaces [0]->interfaces [0]->name, "ICollection`1") == 0);
2325 g_assert (strcmp (class->interfaces [0]->interfaces [1]->name, "IEnumerable`1") == 0);
2326 ilist_offset = interface_offsets_full [class->interfaces [0]->interface_id];
2327 icollection_offset = interface_offsets_full [class->interfaces [0]->interfaces [0]->interface_id];
2328 ienumerable_offset = interface_offsets_full [class->interfaces [0]->interfaces [1]->interface_id];
2329 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2330 for (i = 0; i < num_array_interfaces; ++i) {
2331 ic = array_interfaces [i];
2332 interfaces_full [ic->interface_id] = ic;
2333 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2334 interface_offsets_full [ic->interface_id] = ilist_offset;
2335 else if (strcmp (ic->name, "ICollection`1") == 0)
2336 interface_offsets_full [ic->interface_id] = icollection_offset;
2337 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2338 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2340 g_assert_not_reached ();
2341 /*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);*/
2346 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2347 if (interface_offsets_full [i] != -1) {
2348 interface_offsets_count ++;
2353 * We might get called twice: once from mono_class_init () then once from
2354 * mono_class_setup_vtable ().
2356 if (class->interfaces_packed) {
2357 g_assert (class->interface_offsets_count == interface_offsets_count);
2359 class->interface_offsets_count = interface_offsets_count;
2360 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2361 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2362 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2363 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2364 if (interface_offsets_full [i] != -1) {
2365 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2366 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2367 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2368 /*if (num_array_interfaces)
2369 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]);*/
2370 interface_offsets_count ++;
2375 g_free (interfaces_full);
2376 g_free (interface_offsets_full);
2377 g_free (array_interfaces);
2379 //printf ("JUST DONE: ");
2380 //print_implemented_interfaces (class);
2386 * Setup interface offsets for interfaces. Used by Ref.Emit.
2389 mono_class_setup_interface_offsets (MonoClass *class)
2391 mono_loader_lock ();
2393 setup_interface_offsets (class, 0);
2395 mono_loader_unlock ();
2399 * mono_class_setup_vtable:
2401 * Creates the generic vtable of CLASS.
2402 * Initializes the following fields in MonoClass:
2405 * Plus all the fields initialized by setup_interface_offsets ().
2406 * If there is an error during vtable construction, class->exception_type is set.
2408 * LOCKING: Acquires the loader lock.
2411 mono_class_setup_vtable (MonoClass *class)
2413 MonoMethod **overrides;
2414 MonoGenericContext *context;
2423 /* This sets method->slot for all methods if this is an interface */
2424 mono_class_setup_methods (class);
2426 if (MONO_CLASS_IS_INTERFACE (class))
2429 mono_loader_lock ();
2431 if (class->vtable) {
2432 mono_loader_unlock ();
2436 mono_stats.generic_vtable_count ++;
2438 if (class->generic_class) {
2439 context = mono_class_get_context (class);
2440 type_token = class->generic_class->container_class->type_token;
2442 context = (MonoGenericContext *) class->generic_container;
2443 type_token = class->type_token;
2446 if (class->image->dynamic) {
2447 if (class->generic_class) {
2448 MonoClass *gklass = class->generic_class->container_class;
2450 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2451 for (i = 0; i < onum; ++i) {
2452 MonoMethod *override = overrides [(i * 2) + 1];
2453 MonoMethod *inflated = NULL;
2456 for (j = 0; j < class->method.count; ++j) {
2457 if (gklass->methods [j] == override) {
2458 inflated = class->methods [j];
2462 g_assert (inflated);
2464 overrides [(i * 2) + 1] = inflated;
2467 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2470 /* The following call fails if there are missing methods in the type */
2471 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2475 mono_class_setup_vtable_general (class, overrides, onum);
2479 mono_loader_unlock ();
2485 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2487 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2488 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2490 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL)
2491 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2495 static int __use_new_interface_vtable_code = -1;
2497 use_new_interface_vtable_code (void) {
2498 if (__use_new_interface_vtable_code == -1) {
2499 char *env_var = getenv ("MONO_USE_NEW_INTERFACE_VTABLE_CODE");
2500 if (env_var == NULL) {
2501 __use_new_interface_vtable_code = TRUE;
2503 if ((strcmp (env_var, "0") == 0) || (strcmp (env_var, "false") == 0) || (strcmp (env_var, "FALSE") == 0)) {
2504 __use_new_interface_vtable_code = FALSE;
2506 __use_new_interface_vtable_code = TRUE;
2510 return __use_new_interface_vtable_code;
2514 #define DEBUG_INTERFACE_VTABLE_CODE 0
2515 #define TRACE_INTERFACE_VTABLE_CODE 0
2517 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2518 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2522 #define DEBUG_INTERFACE_VTABLE(stmt)
2525 #if TRACE_INTERFACE_VTABLE_CODE
2526 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2530 #define TRACE_INTERFACE_VTABLE(stmt)
2534 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2536 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2540 GString *res = g_string_new ("");
2542 g_string_append_c (res, '(');
2543 for (i = 0; i < sig->param_count; ++i) {
2545 g_string_append_c (res, ',');
2546 mono_type_get_desc (res, sig->params [i], include_namespace);
2548 g_string_append (res, ")=>");
2549 if (sig->ret != NULL) {
2550 mono_type_get_desc (res, sig->ret, include_namespace);
2552 g_string_append (res, "NULL");
2555 g_string_free (res, FALSE);
2559 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2560 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2561 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2562 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2570 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) {
2571 if (strcmp (im->name, cm->name) == 0) {
2572 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2573 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2576 if (! slot_is_empty) {
2577 if (require_newslot) {
2578 if (! interface_is_explicitly_implemented_by_class) {
2579 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2582 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2583 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2587 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2590 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2591 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2592 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2593 TRACE_INTERFACE_VTABLE (printf ("]"));
2596 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2597 /* CAS - SecurityAction.InheritanceDemand on interface */
2598 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2599 mono_secman_inheritancedemand_method (cm, im);
2602 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2603 check_core_clr_override_method (class, cm, im);
2604 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2607 MonoClass *ic = im->klass;
2608 const char *ic_name_space = ic->name_space;
2609 const char *ic_name = ic->name;
2612 if (! require_newslot) {
2613 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2616 if (cm->klass->rank == 0) {
2617 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2620 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2621 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2622 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2623 TRACE_INTERFACE_VTABLE (printf ("]"));
2626 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2627 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2630 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2631 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2634 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2635 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2639 subname = strstr (cm->name, ic_name_space);
2640 if (subname != cm->name) {
2641 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2644 subname += strlen (ic_name_space);
2645 if (subname [0] != '.') {
2646 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2650 if (strstr (subname, ic_name) != subname) {
2651 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2654 subname += strlen (ic_name);
2655 if (subname [0] != '.') {
2656 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2660 if (strcmp (subname, im->name) != 0) {
2661 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2665 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2666 /* CAS - SecurityAction.InheritanceDemand on interface */
2667 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2668 mono_secman_inheritancedemand_method (cm, im);
2671 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2672 check_core_clr_override_method (class, cm, im);
2674 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2679 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2681 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2682 MonoMethod *method = key;
2683 MonoMethod *override = value;
2684 MonoClass *method_class = mono_method_get_class (method);
2685 MonoClass *override_class = mono_method_get_class (override);
2687 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2688 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2689 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2692 print_overrides (GHashTable *override_map, const char *message) {
2694 printf ("Override map \"%s\" START:\n", message);
2695 g_hash_table_foreach (override_map, foreach_override, NULL);
2696 printf ("Override map \"%s\" END.\n", message);
2698 printf ("Override map \"%s\" EMPTY.\n", message);
2702 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2703 char *full_name = mono_type_full_name (&class->byval_arg);
2707 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2709 if (print_interfaces) {
2710 print_implemented_interfaces (class);
2711 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2714 if (class->parent) {
2715 parent_size = class->parent->vtable_size;
2719 for (i = 0; i < size; ++i) {
2720 MonoMethod *cm = vtable [i];
2722 char *cm_name = mono_method_full_name (cm, TRUE);
2723 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2724 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2734 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
2736 char *method_signature;
2738 for (index = 0; index < onum; ++index) {
2739 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
2740 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
2742 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
2743 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2744 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
2745 g_free (method_signature);
2746 for (index = 0; index < class->method.count; ++index) {
2747 MonoMethod *cm = class->methods [index];
2748 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2750 printf ("METHOD %s(%s)\n", cm->name, method_signature);
2751 g_free (method_signature);
2756 * LOCKING: this is supposed to be called with the loader lock held.
2759 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
2762 MonoMethod **vtable;
2763 int i, max_vtsize = 0, max_iid, cur_slot = 0;
2764 GPtrArray *ifaces, *pifaces = NULL;
2765 GHashTable *override_map = NULL;
2766 gboolean security_enabled = mono_is_security_manager_active ();
2767 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
2768 int first_non_interface_slot;
2774 ifaces = mono_class_get_implemented_interfaces (class);
2776 for (i = 0; i < ifaces->len; i++) {
2777 MonoClass *ic = g_ptr_array_index (ifaces, i);
2778 max_vtsize += ic->method.count;
2780 g_ptr_array_free (ifaces, TRUE);
2784 if (class->parent) {
2785 mono_class_init (class->parent);
2786 mono_class_setup_vtable (class->parent);
2787 max_vtsize += class->parent->vtable_size;
2788 cur_slot = class->parent->vtable_size;
2791 max_vtsize += class->method.count;
2793 vtable = alloca (sizeof (gpointer) * max_vtsize);
2794 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
2796 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
2798 cur_slot = setup_interface_offsets (class, cur_slot);
2799 max_iid = class->max_interface_id;
2800 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
2802 if (use_new_interface_vtable_code ()) {
2803 if (class->parent && class->parent->vtable_size) {
2804 MonoClass *parent = class->parent;
2807 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
2809 // Also inherit parent interface vtables, just as a starting point.
2810 // This is needed otherwise bug-77127.exe fails when the property methods
2811 // have different names in the iterface and the class, because for child
2812 // classes the ".override" information is not used anymore.
2813 for (i = 0; i < parent->interface_offsets_count; i++) {
2814 MonoClass *parent_interface = parent->interfaces_packed [i];
2815 int interface_offset = mono_class_interface_offset (class, parent_interface);
2817 if (interface_offset >= parent->vtable_size) {
2818 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
2821 mono_class_setup_methods (parent_interface);
2822 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
2823 for (j = 0; j < parent_interface->method.count; j++) {
2824 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
2825 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
2826 parent_interface_offset + j, parent_interface_offset, j,
2827 interface_offset + j, interface_offset, j));
2834 if (class->parent && class->parent->vtable_size)
2835 memcpy (vtable, class->parent->vtable, sizeof (gpointer) * class->parent->vtable_size);
2838 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
2839 /* override interface methods */
2840 for (i = 0; i < onum; i++) {
2841 MonoMethod *decl = overrides [i*2];
2842 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
2844 mono_class_setup_methods (decl->klass);
2845 g_assert (decl->slot != -1);
2846 dslot = decl->slot + mono_class_interface_offset (class, decl->klass);
2847 vtable [dslot] = overrides [i*2 + 1];
2848 vtable [dslot]->slot = dslot;
2850 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
2852 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
2854 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2855 check_core_clr_override_method (class, vtable [dslot], decl);
2858 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
2859 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
2861 if (use_new_interface_vtable_code ()) {
2862 // Loop on all implemented interfaces...
2863 for (i = 0; i < class->interface_offsets_count; i++) {
2864 MonoClass *parent = class->parent;
2866 gboolean interface_is_explicitly_implemented_by_class;
2869 ic = class->interfaces_packed [i];
2870 ic_offset = mono_class_interface_offset (class, ic);
2872 mono_class_setup_methods (ic);
2874 // Check if this interface is explicitly implemented (instead of just inherited)
2875 if (parent != NULL) {
2876 int implemented_interfaces_index;
2877 interface_is_explicitly_implemented_by_class = FALSE;
2878 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
2879 if (ic == class->interfaces [implemented_interfaces_index]) {
2880 interface_is_explicitly_implemented_by_class = TRUE;
2885 interface_is_explicitly_implemented_by_class = TRUE;
2888 // Loop on all interface methods...
2889 for (im_index = 0; im_index < ic->method.count; im_index++) {
2890 MonoMethod *im = ic->methods [im_index];
2891 int im_slot = ic_offset + im->slot;
2892 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
2894 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2897 // If there is an explicit implementation, just use it right away,
2898 // otherwise look for a matching method
2899 if (override_im == NULL) {
2902 // First look for a suitable method among the class methods
2903 for (cm_index = 0; cm_index < class->method.count; cm_index++) {
2904 MonoMethod *cm = class->methods [cm_index];
2906 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)));
2907 if ((cm->flags & METHOD_ATTRIBUTE_VIRTUAL) && check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
2908 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
2909 vtable [im_slot] = cm;
2910 /* Why do we need this? */
2915 TRACE_INTERFACE_VTABLE (printf ("\n"));
2918 // If the slot is still empty, look in all the inherited virtual methods...
2919 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
2920 MonoClass *parent = class->parent;
2921 // Reverse order, so that last added methods are preferred
2922 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
2923 MonoMethod *cm = parent->vtable [cm_index];
2925 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));
2926 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
2927 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
2928 vtable [im_slot] = cm;
2929 /* Why do we need this? */
2935 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
2939 g_assert (vtable [im_slot] == override_im);
2944 // If the class is not abstract, check that all its interface slots are full.
2945 // The check is done here and not directly at the end of the loop above because
2946 // it can happen (for injected generic array interfaces) that the same slot is
2947 // processed multiple times (those interfaces have overlapping slots), and it
2948 // will not always be the first pass the one that fills the slot.
2949 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
2950 for (i = 0; i < class->interface_offsets_count; i++) {
2954 ic = class->interfaces_packed [i];
2955 ic_offset = mono_class_interface_offset (class, ic);
2957 for (im_index = 0; im_index < ic->method.count; im_index++) {
2958 MonoMethod *im = ic->methods [im_index];
2959 int im_slot = ic_offset + im->slot;
2961 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2964 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
2965 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
2966 if (vtable [im_slot] == NULL) {
2967 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
2968 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2970 g_hash_table_destroy (override_map);
2977 for (k = class; k ; k = k->parent) {
2980 ifaces = mono_class_get_implemented_interfaces (k);
2982 nifaces = ifaces->len;
2983 if (k->generic_class) {
2984 pifaces = mono_class_get_implemented_interfaces (
2985 k->generic_class->container_class);
2986 g_assert (pifaces && (pifaces->len == nifaces));
2989 for (i = 0; i < nifaces; i++) {
2990 MonoClass *pic = NULL;
2993 ic = g_ptr_array_index (ifaces, i);
2995 pic = g_ptr_array_index (pifaces, i);
2996 g_assert (ic->interface_id <= k->max_interface_id);
2997 io = mono_class_interface_offset (k, ic);
3000 g_assert (io <= max_vtsize);
3003 mono_class_setup_methods (ic);
3004 for (l = 0; l < ic->method.count; l++) {
3005 MonoMethod *im = ic->methods [l];
3007 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
3010 for (j = 0; j < class->method.count; ++j) {
3011 MonoMethod *cm = class->methods [j];
3012 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
3013 !((cm->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == METHOD_ATTRIBUTE_PUBLIC) ||
3014 !(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT))
3016 if (!strcmp(cm->name, im->name) &&
3017 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
3019 /* CAS - SecurityAction.InheritanceDemand on interface */
3020 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3021 mono_secman_inheritancedemand_method (cm, im);
3024 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3025 check_core_clr_override_method (class, cm, im);
3027 g_assert (io + l <= max_vtsize);
3028 vtable [io + l] = cm;
3029 TRACE_INTERFACE_VTABLE (printf (" [NOA] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
3030 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3031 TRACE_INTERFACE_VTABLE (printf ("\n"));
3036 /* already implemented */
3037 if (io >= k->vtable_size)
3041 // Override methods with the same fully qualified name
3042 for (l = 0; l < ic->method.count; l++) {
3043 MonoMethod *im = ic->methods [l];
3044 char *qname, *fqname, *cname, *the_cname;
3047 if (vtable [io + l])
3051 the_cname = mono_type_get_name_full (&pic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
3055 cname = (char*)ic->name;
3058 qname = g_strconcat (cname, ".", im->name, NULL);
3059 if (ic->name_space && ic->name_space [0])
3060 fqname = g_strconcat (ic->name_space, ".", cname, ".", im->name, NULL);
3064 for (k1 = class; k1; k1 = k1->parent) {
3065 for (j = 0; j < k1->method.count; ++j) {
3066 MonoMethod *cm = k1->methods [j];
3068 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3071 if (((fqname && !strcmp (cm->name, fqname)) || !strcmp (cm->name, qname)) &&
3072 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im)) &&
3073 ((vtable [io + l] == NULL) || mono_class_is_subclass_of (cm->klass, vtable [io + l]->klass, FALSE))) {
3075 /* CAS - SecurityAction.InheritanceDemand on interface */
3076 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3077 mono_secman_inheritancedemand_method (cm, im);
3080 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3081 check_core_clr_override_method (class, cm, im);
3083 g_assert (io + l <= max_vtsize);
3084 vtable [io + l] = cm;
3085 TRACE_INTERFACE_VTABLE (printf (" [FQN] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
3086 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3087 TRACE_INTERFACE_VTABLE (printf ("\n"));
3097 // Override methods with the same name
3098 for (l = 0; l < ic->method.count; l++) {
3099 MonoMethod *im = ic->methods [l];
3102 g_assert (io + l <= max_vtsize);
3104 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
3107 for (k1 = class; k1; k1 = k1->parent) {
3108 for (j = 0; j < k1->method.count; ++j) {
3109 MonoMethod *cm = k1->methods [j];
3111 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
3112 !(cm->flags & METHOD_ATTRIBUTE_PUBLIC))
3115 if (!strcmp(cm->name, im->name) &&
3116 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
3118 /* CAS - SecurityAction.InheritanceDemand on interface */
3119 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3120 mono_secman_inheritancedemand_method (cm, im);
3123 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3124 check_core_clr_override_method (class, cm, im);
3126 g_assert (io + l <= max_vtsize);
3127 vtable [io + l] = cm;
3128 TRACE_INTERFACE_VTABLE (printf (" [SQN] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
3129 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3130 TRACE_INTERFACE_VTABLE (printf ("\n"));
3135 g_assert (io + l <= max_vtsize);
3136 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
3141 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3142 for (l = 0; l < ic->method.count; l++) {
3144 MonoMethod *im = ic->methods [l];
3145 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3147 g_assert (io + l <= max_vtsize);
3150 * If one of our parents already implements this interface
3151 * we can inherit the implementation.
3153 if (!(vtable [io + l])) {
3154 MonoClass *parent = class->parent;
3156 for (; parent; parent = parent->parent) {
3157 if (MONO_CLASS_IMPLEMENTS_INTERFACE (parent, ic->interface_id) &&
3159 vtable [io + l] = parent->vtable [mono_class_interface_offset (parent, ic) + l];
3160 TRACE_INTERFACE_VTABLE (printf (" [INH] Filling slot %d (%d+%d) with method '%s'.'%s':'%s'\n", io + l, io, l, vtable [io + l]->klass->name_space, vtable [io + l]->klass->name, vtable [io + l]->name));
3165 if (!(vtable [io + l])) {
3166 for (j = 0; j < onum; ++j) {
3167 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", io+l, overrides [j*2+1]->name,
3168 overrides [j*2+1]->slot, overrides [j*2]->name, overrides [j*2]->slot);
3170 msig = mono_signature_get_desc (mono_method_signature (im), FALSE);
3171 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
3172 mono_type_get_name (&ic->byval_arg), im->name, msig, class->name_space, class->name);
3174 for (j = 0; j < class->method.count; ++j) {
3175 MonoMethod *cm = class->methods [j];
3176 msig = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3178 printf ("METHOD %s(%s)\n", cm->name, msig);
3182 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3185 g_ptr_array_free (ifaces, TRUE);
3187 g_hash_table_destroy (override_map);
3194 for (l = 0; l < ic->method.count; l++) {
3195 MonoMethod *im = vtable [io + l];
3198 g_assert (io + l <= max_vtsize);
3200 /* FIXME: why do we need this ? */
3202 /* g_assert_not_reached (); */
3208 g_ptr_array_free (ifaces, TRUE);
3212 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3213 for (i = 0; i < class->method.count; ++i) {
3216 cm = class->methods [i];
3219 * Non-virtual method have no place in the vtable.
3220 * This also catches static methods (since they are not virtual).
3222 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3226 * If the method is REUSE_SLOT, we must check in the
3227 * base class for a method to override.
3229 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3231 for (k = class->parent; k ; k = k->parent) {
3233 for (j = 0; j < k->method.count; ++j) {
3234 MonoMethod *m1 = k->methods [j];
3235 MonoMethodSignature *cmsig, *m1sig;
3237 if (!(m1->flags & METHOD_ATTRIBUTE_VIRTUAL))
3240 cmsig = mono_method_signature (cm);
3241 m1sig = mono_method_signature (m1);
3243 if (!cmsig || !m1sig) {
3244 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3248 if (!strcmp(cm->name, m1->name) &&
3249 mono_metadata_signature_equal (cmsig, m1sig)) {
3251 /* CAS - SecurityAction.InheritanceDemand */
3252 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3253 mono_secman_inheritancedemand_method (cm, m1);
3256 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3257 check_core_clr_override_method (class, cm, m1);
3259 slot = k->methods [j]->slot;
3260 g_assert (cm->slot < max_vtsize);
3262 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3263 g_hash_table_insert (override_map, m1, cm);
3275 cm->slot = cur_slot++;
3277 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3278 vtable [cm->slot] = cm;
3281 /* override non interface methods */
3282 for (i = 0; i < onum; i++) {
3283 MonoMethod *decl = overrides [i*2];
3284 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3285 g_assert (decl->slot != -1);
3286 vtable [decl->slot] = overrides [i*2 + 1];
3287 overrides [i * 2 + 1]->slot = decl->slot;
3289 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3290 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3292 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3293 check_core_clr_override_method (class, vtable [decl->slot], decl);
3298 * If a method occupies more than one place in the vtable, and it is
3299 * overriden, then change the other occurances too.
3302 for (i = 0; i < max_vtsize; ++i)
3304 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3309 g_hash_table_destroy (override_map);
3312 if (class->generic_class) {
3313 MonoClass *gklass = class->generic_class->container_class;
3315 mono_class_init (gklass);
3317 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3319 /* Check that the vtable_size value computed in mono_class_init () is correct */
3320 if (class->vtable_size)
3321 g_assert (cur_slot == class->vtable_size);
3322 class->vtable_size = cur_slot;
3325 /* FIXME: only do this if the class is actually sharable */
3326 if (class->valuetype && (class->generic_class || class->generic_container) &&
3327 mono_class_generic_sharing_enabled (class)) {
3328 for (i = 0; i < max_vtsize; ++i) {
3329 if (vtable [i] && vtable [i]->wrapper_type == MONO_WRAPPER_NONE)
3330 vtable [i] = mono_marshal_get_static_rgctx_invoke (vtable [i]);
3334 /* Try to share the vtable with our parent. */
3335 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3336 mono_memory_barrier ();
3337 class->vtable = class->parent->vtable;
3339 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3340 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3341 mono_memory_barrier ();
3342 class->vtable = tmp;
3345 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3346 if (mono_print_vtable) {
3349 print_implemented_interfaces (class);
3351 for (i = 0; i <= max_iid; i++)
3352 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3355 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3356 class->vtable_size, icount);
3358 for (i = 0; i < class->vtable_size; ++i) {
3363 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3364 mono_method_full_name (cm, TRUE));
3370 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3371 class->name, max_iid);
3373 for (i = 0; i < class->interface_count; i++) {
3374 ic = class->interfaces [i];
3375 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3376 mono_class_interface_offset (class, ic),
3377 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3380 for (k = class->parent; k ; k = k->parent) {
3381 for (i = 0; i < k->interface_count; i++) {
3382 ic = k->interfaces [i];
3383 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3384 mono_class_interface_offset (class, ic),
3385 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3392 static MonoMethod *default_ghc = NULL;
3393 static MonoMethod *default_finalize = NULL;
3394 static int finalize_slot = -1;
3395 static int ghc_slot = -1;
3398 initialize_object_slots (MonoClass *class)
3403 if (class == mono_defaults.object_class) {
3404 mono_class_setup_vtable (class);
3405 for (i = 0; i < class->vtable_size; ++i) {
3406 MonoMethod *cm = class->vtable [i];
3408 if (!strcmp (cm->name, "GetHashCode"))
3410 else if (!strcmp (cm->name, "Finalize"))
3414 g_assert (ghc_slot > 0);
3415 default_ghc = class->vtable [ghc_slot];
3417 g_assert (finalize_slot > 0);
3418 default_finalize = class->vtable [finalize_slot];
3423 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
3425 GList* n = mono_mempool_alloc (mp, sizeof (GList));
3433 MonoMethod *array_method;
3435 } GenericArrayMethodInfo;
3437 static int generic_array_method_num = 0;
3438 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3441 generic_array_methods (MonoClass *class)
3443 int i, count_generic = 0;
3444 GList *list = NULL, *tmp;
3445 if (generic_array_method_num)
3446 return generic_array_method_num;
3447 mono_class_setup_methods (class->parent);
3448 for (i = 0; i < class->parent->method.count; i++) {
3449 MonoMethod *m = class->parent->methods [i];
3450 if (!strncmp (m->name, "InternalArray__", 15)) {
3452 list = g_list_prepend (list, m);
3455 list = g_list_reverse (list);
3456 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3458 for (tmp = list; tmp; tmp = tmp->next) {
3459 const char *mname, *iname;
3461 MonoMethod *m = tmp->data;
3462 generic_array_method_info [i].array_method = m;
3463 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3464 iname = "System.Collections.Generic.ICollection`1.";
3465 mname = m->name + 27;
3466 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3467 iname = "System.Collections.Generic.IEnumerable`1.";
3468 mname = m->name + 27;
3469 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3470 iname = "System.Collections.Generic.IList`1.";
3471 mname = m->name + 15;
3473 g_assert_not_reached ();
3476 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3477 strcpy (name, iname);
3478 strcpy (name + strlen (iname), mname);
3479 generic_array_method_info [i].name = name;
3482 /*g_print ("array generic methods: %d\n", count_generic);*/
3484 generic_array_method_num = count_generic;
3485 return generic_array_method_num;
3489 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3491 MonoGenericContext tmp_context;
3494 tmp_context.class_inst = NULL;
3495 tmp_context.method_inst = iface->generic_class->context.class_inst;
3496 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3498 for (i = 0; i < generic_array_method_num; i++) {
3499 MonoMethod *m = generic_array_method_info [i].array_method;
3500 MonoMethod *inflated;
3502 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3503 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3508 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3510 int len = strlen (s1) + strlen (s2) + 2;
3511 char *s = mono_image_alloc (image, len);
3514 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3515 g_assert (result == len - 1);
3521 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3523 gpointer exception_data = NULL;
3525 switch (error->exception_type) {
3526 case MONO_EXCEPTION_TYPE_LOAD:
3527 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3530 case MONO_EXCEPTION_MISSING_METHOD:
3531 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3534 case MONO_EXCEPTION_MISSING_FIELD: {
3535 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3536 const char *class_name;
3539 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3541 class_name = error->klass->name;
3543 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3546 g_free ((void*)class_name);
3550 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3553 if (error->ref_only)
3554 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.";
3556 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3558 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3562 case MONO_EXCEPTION_BAD_IMAGE:
3563 exception_data = error->msg;
3567 g_assert_not_reached ();
3570 mono_class_set_failure (class, error->exception_type, exception_data);
3574 check_core_clr_inheritance (MonoClass *class)
3576 MonoSecurityCoreCLRLevel class_level, parent_level;
3577 MonoClass *parent = class->parent;
3582 class_level = mono_security_core_clr_class_level (class);
3583 parent_level = mono_security_core_clr_class_level (parent);
3585 if (class_level < parent_level)
3586 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3591 * @class: the class to initialize
3593 * Compute the instance_size, class_size and other infos that cannot be
3594 * computed at mono_class_get() time. Also compute vtable_size if possible.
3595 * Returns TRUE on success or FALSE if there was a problem in loading
3596 * the type (incorrect assemblies, missing assemblies, methods, etc).
3598 * LOCKING: Acquires the loader lock.
3601 mono_class_init (MonoClass *class)
3604 MonoCachedClassInfo cached_info;
3605 gboolean has_cached_info;
3606 int class_init_ok = TRUE;
3610 /* Double-checking locking pattern */
3612 return class->exception_type == MONO_EXCEPTION_NONE;
3614 /*g_print ("Init class %s\n", class->name);*/
3616 /* We do everything inside the lock to prevent races */
3617 mono_loader_lock ();
3619 if (class->inited) {
3620 mono_loader_unlock ();
3621 /* Somebody might have gotten in before us */
3622 return class->exception_type == MONO_EXCEPTION_NONE;
3625 if (class->init_pending) {
3626 mono_loader_unlock ();
3627 /* this indicates a cyclic dependency */
3628 g_error ("pending init %s.%s\n", class->name_space, class->name);
3631 class->init_pending = 1;
3633 /* CAS - SecurityAction.InheritanceDemand */
3634 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3635 mono_secman_inheritancedemand_class (class, class->parent);
3638 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3639 check_core_clr_inheritance (class);
3641 mono_stats.initialized_class_count++;
3643 if (class->generic_class && !class->generic_class->is_dynamic) {
3644 MonoClass *gklass = class->generic_class->container_class;
3646 mono_stats.generic_class_count++;
3648 class->method = gklass->method;
3649 class->field = gklass->field;
3651 mono_class_init (gklass);
3652 mono_class_setup_methods (gklass);
3653 mono_class_setup_properties (gklass);
3655 if (MONO_CLASS_IS_INTERFACE (class))
3656 class->interface_id = mono_get_unique_iid (class);
3658 g_assert (class->interface_count == gklass->interface_count);
3661 if (class->parent && !class->parent->inited)
3662 mono_class_init (class->parent);
3664 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3666 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3667 class->nested_classes_inited = TRUE;
3670 * Computes the size used by the fields, and their locations
3672 if (has_cached_info) {
3673 class->instance_size = cached_info.instance_size;
3674 class->sizes.class_size = cached_info.class_size;
3675 class->packing_size = cached_info.packing_size;
3676 class->min_align = cached_info.min_align;
3677 class->blittable = cached_info.blittable;
3678 class->has_references = cached_info.has_references;
3679 class->has_static_refs = cached_info.has_static_refs;
3680 class->no_special_static_fields = cached_info.no_special_static_fields;
3683 if (!class->size_inited){
3684 mono_class_setup_fields (class);
3685 if (class->exception_type || mono_loader_get_last_error ()){
3686 class_init_ok = FALSE;
3691 /* Initialize arrays */
3693 class->method.count = 3 + (class->rank > 1? 2: 1);
3695 if (class->interface_count) {
3696 int count_generic = generic_array_methods (class);
3697 class->method.count += class->interface_count * count_generic;
3701 mono_class_setup_supertypes (class);
3704 initialize_object_slots (class);
3707 * Initialize the rest of the data without creating a generic vtable if possible.
3708 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3709 * also avoid computing a generic vtable.
3711 if (has_cached_info) {
3713 class->vtable_size = cached_info.vtable_size;
3714 class->has_finalize = cached_info.has_finalize;
3715 class->ghcimpl = cached_info.ghcimpl;
3716 class->has_cctor = cached_info.has_cctor;
3717 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3718 static int szarray_vtable_size = 0;
3721 if (!szarray_vtable_size) {
3722 mono_class_setup_vtable (class);
3723 szarray_vtable_size = class->vtable_size;
3725 class->vtable_size = szarray_vtable_size;
3727 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3728 MonoClass *gklass = class->generic_class->container_class;
3730 /* Generic instance case */
3731 class->ghcimpl = gklass->ghcimpl;
3732 class->has_finalize = gklass->has_finalize;
3733 class->has_cctor = gklass->has_cctor;
3735 mono_class_setup_vtable (gklass);
3736 if (gklass->exception_type)
3739 class->vtable_size = gklass->vtable_size;
3743 /* ghcimpl is not currently used
3745 if (class->parent) {
3746 MonoMethod *cmethod = class->vtable [ghc_slot];
3747 if (cmethod->is_inflated)
3748 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3749 if (cmethod == default_ghc) {
3755 /* Interfaces and valuetypes are not supposed to have finalizers */
3756 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3757 MonoMethod *cmethod = NULL;
3759 if (class->type_token) {
3760 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3761 } else if (class->parent) {
3762 /* FIXME: Optimize this */
3763 mono_class_setup_vtable (class);
3764 if (class->exception_type || mono_loader_get_last_error ())
3766 cmethod = class->vtable [finalize_slot];
3770 /* Check that this is really the finalizer method */
3771 mono_class_setup_vtable (class);
3772 if (class->exception_type || mono_loader_get_last_error ())
3775 class->has_finalize = 0;
3776 if (class->parent) {
3777 cmethod = class->vtable [finalize_slot];
3778 if (cmethod->is_inflated)
3779 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3780 if (cmethod != default_finalize) {
3781 class->has_finalize = 1;
3787 /* C# doesn't allow interfaces to have cctors */
3788 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3789 MonoMethod *cmethod = NULL;
3791 if (class->type_token) {
3792 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3793 /* The find_method function ignores the 'flags' argument */
3794 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3795 class->has_cctor = 1;
3797 mono_class_setup_methods (class);
3799 for (i = 0; i < class->method.count; ++i) {
3800 MonoMethod *method = class->methods [i];
3801 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3802 (strcmp (".cctor", method->name) == 0)) {
3803 class->has_cctor = 1;
3811 if (!mono_setup_vtable_in_class_init) {
3813 * This is an embedding API break, since the caller might assume that
3814 * mono_class_init () constructs a generic vtable, so vtable construction errors
3815 * are visible right after the mono_class_init (), and not after
3816 * mono_class_vtable ().
3818 if (class->parent) {
3819 /* This will compute class->parent->vtable_size for some classes */
3820 mono_class_init (class->parent);
3821 if (class->parent->exception_type || mono_loader_get_last_error ())
3823 if (!class->parent->vtable_size) {
3824 /* FIXME: Get rid of this somehow */
3825 mono_class_setup_vtable (class->parent);
3826 if (class->parent->exception_type || mono_loader_get_last_error ())
3829 setup_interface_offsets (class, class->parent->vtable_size);
3831 setup_interface_offsets (class, 0);
3834 mono_class_setup_vtable (class);
3836 if (MONO_CLASS_IS_INTERFACE (class))
3837 setup_interface_offsets (class, 0);
3840 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3841 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
3842 class_init_ok = FALSE;
3848 class_init_ok = FALSE;
3851 /* Because of the double-checking locking pattern */
3852 mono_memory_barrier ();
3854 class->init_pending = 0;
3856 if (mono_loader_get_last_error ()) {
3857 if (class->exception_type == MONO_EXCEPTION_NONE)
3858 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3860 mono_loader_clear_error ();
3863 mono_loader_unlock ();
3865 if (mono_debugger_class_init_func)
3866 mono_debugger_class_init_func (class);
3868 return class_init_ok;
3872 is_corlib_image (MonoImage *image)
3874 /* FIXME: allow the dynamic case for our compilers and with full trust */
3876 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3878 return image == mono_defaults.corlib;
3882 * LOCKING: this assumes the loader lock is held
3885 mono_class_setup_mono_type (MonoClass *class)
3887 const char *name = class->name;
3888 const char *nspace = class->name_space;
3889 gboolean is_corlib = is_corlib_image (class->image);
3891 class->this_arg.byref = 1;
3892 class->this_arg.data.klass = class;
3893 class->this_arg.type = MONO_TYPE_CLASS;
3894 class->byval_arg.data.klass = class;
3895 class->byval_arg.type = MONO_TYPE_CLASS;
3897 if (is_corlib && !strcmp (nspace, "System")) {
3898 if (!strcmp (name, "ValueType")) {
3900 * do not set the valuetype bit for System.ValueType.
3901 * class->valuetype = 1;
3903 class->blittable = TRUE;
3904 } else if (!strcmp (name, "Enum")) {
3906 * do not set the valuetype bit for System.Enum.
3907 * class->valuetype = 1;
3909 class->valuetype = 0;
3910 class->enumtype = 0;
3911 } else if (!strcmp (name, "Object")) {
3912 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3913 } else if (!strcmp (name, "String")) {
3914 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3915 } else if (!strcmp (name, "TypedReference")) {
3916 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3920 if (class->valuetype) {
3921 int t = MONO_TYPE_VALUETYPE;
3923 if (is_corlib && !strcmp (nspace, "System")) {
3926 if (!strcmp (name, "Boolean")) {
3927 t = MONO_TYPE_BOOLEAN;
3928 } else if (!strcmp(name, "Byte")) {
3930 class->blittable = TRUE;
3934 if (!strcmp (name, "Char")) {
3939 if (!strcmp (name, "Double")) {
3941 class->blittable = TRUE;
3945 if (!strcmp (name, "Int32")) {
3947 class->blittable = TRUE;
3948 } else if (!strcmp(name, "Int16")) {
3950 class->blittable = TRUE;
3951 } else if (!strcmp(name, "Int64")) {
3953 class->blittable = TRUE;
3954 } else if (!strcmp(name, "IntPtr")) {
3956 class->blittable = TRUE;
3960 if (!strcmp (name, "Single")) {
3962 class->blittable = TRUE;
3963 } else if (!strcmp(name, "SByte")) {
3965 class->blittable = TRUE;
3969 if (!strcmp (name, "UInt32")) {
3971 class->blittable = TRUE;
3972 } else if (!strcmp(name, "UInt16")) {
3974 class->blittable = TRUE;
3975 } else if (!strcmp(name, "UInt64")) {
3977 class->blittable = TRUE;
3978 } else if (!strcmp(name, "UIntPtr")) {
3980 class->blittable = TRUE;
3984 if (!strcmp (name, "TypedReference")) {
3985 t = MONO_TYPE_TYPEDBYREF;
3986 class->blittable = TRUE;
3990 if (!strcmp (name, "Void")) {
3998 class->this_arg.type = class->byval_arg.type = t;
4001 if (MONO_CLASS_IS_INTERFACE (class))
4002 class->interface_id = mono_get_unique_iid (class);
4007 * LOCKING: this assumes the loader lock is held
4010 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4012 gboolean system_namespace;
4013 gboolean is_corlib = is_corlib_image (class->image);
4015 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4017 /* if root of the hierarchy */
4018 if (system_namespace && !strcmp (class->name, "Object")) {
4019 class->parent = NULL;
4020 class->instance_size = sizeof (MonoObject);
4023 if (!strcmp (class->name, "<Module>")) {
4024 class->parent = NULL;
4025 class->instance_size = 0;
4029 if (!MONO_CLASS_IS_INTERFACE (class)) {
4030 /* Imported COM Objects always derive from __ComObject. */
4031 if (MONO_CLASS_IS_IMPORT (class)) {
4032 mono_init_com_types ();
4033 if (parent == mono_defaults.object_class)
4034 parent = mono_defaults.com_object_class;
4037 /* set the parent to something useful and safe, but mark the type as broken */
4038 parent = mono_defaults.object_class;
4039 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4042 class->parent = parent;
4044 if (parent->generic_class && !parent->name) {
4046 * If the parent is a generic instance, we may get
4047 * called before it is fully initialized, especially
4048 * before it has its name.
4053 class->marshalbyref = parent->marshalbyref;
4054 class->contextbound = parent->contextbound;
4055 class->delegate = parent->delegate;
4056 if (MONO_CLASS_IS_IMPORT (class))
4057 class->is_com_object = 1;
4059 class->is_com_object = parent->is_com_object;
4061 if (system_namespace) {
4062 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4063 class->marshalbyref = 1;
4065 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4066 class->contextbound = 1;
4068 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4069 class->delegate = 1;
4072 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4073 (strcmp (class->parent->name_space, "System") == 0)))
4074 class->valuetype = 1;
4075 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4076 class->valuetype = class->enumtype = 1;
4078 /*class->enumtype = class->parent->enumtype; */
4079 mono_class_setup_supertypes (class);
4081 /* initialize com types if COM interfaces are present */
4082 if (MONO_CLASS_IS_IMPORT (class))
4083 mono_init_com_types ();
4084 class->parent = NULL;
4090 * mono_class_setup_supertypes:
4093 * Build the data structure needed to make fast type checks work.
4094 * This currently sets two fields in @class:
4095 * - idepth: distance between @class and System.Object in the type
4097 * - supertypes: array of classes: each element has a class in the hierarchy
4098 * starting from @class up to System.Object
4100 * LOCKING: this assumes the loader lock is held
4103 mono_class_setup_supertypes (MonoClass *class)
4107 if (class->supertypes)
4110 if (class->parent && !class->parent->supertypes)
4111 mono_class_setup_supertypes (class->parent);
4113 class->idepth = class->parent->idepth + 1;
4117 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4118 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4120 if (class->parent) {
4121 class->supertypes [class->idepth - 1] = class;
4122 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4124 class->supertypes [0] = class;
4129 * mono_class_create_from_typedef:
4130 * @image: image where the token is valid
4131 * @type_token: typedef token
4133 * Create the MonoClass* representing the specified type token.
4134 * @type_token must be a TypeDef token.
4137 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4139 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4140 MonoClass *class, *parent = NULL;
4141 guint32 cols [MONO_TYPEDEF_SIZE];
4142 guint32 cols_next [MONO_TYPEDEF_SIZE];
4143 guint tidx = mono_metadata_token_index (type_token);
4144 MonoGenericContext *context = NULL;
4145 const char *name, *nspace;
4147 MonoClass **interfaces;
4148 guint32 field_last, method_last;
4149 guint32 nesting_tokeen;
4151 mono_loader_lock ();
4153 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4154 mono_loader_unlock ();
4158 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4160 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4162 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4163 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4165 class = mono_image_alloc0 (image, sizeof (MonoClass));
4168 class->name_space = nspace;
4170 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4172 class->image = image;
4173 class->type_token = type_token;
4174 class->flags = cols [MONO_TYPEDEF_FLAGS];
4176 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4179 * Check whether we're a generic type definition.
4181 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4182 if (class->generic_container) {
4183 class->generic_container->owner.klass = class;
4184 context = &class->generic_container->context;
4187 if (cols [MONO_TYPEDEF_EXTENDS]) {
4188 parent = mono_class_get_full (
4189 image, mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]), context);
4190 if (parent == NULL){
4191 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4192 mono_loader_unlock ();
4193 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4198 /* do this early so it's available for interfaces in setup_mono_type () */
4199 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4200 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4202 mono_class_setup_parent (class, parent);
4204 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4205 mono_class_setup_mono_type (class);
4207 if (!class->enumtype) {
4208 if (!mono_metadata_interfaces_from_typedef_full (
4209 image, type_token, &interfaces, &icount, context)){
4210 mono_loader_unlock ();
4211 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4215 class->interfaces = interfaces;
4216 class->interface_count = icount;
4219 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4223 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4227 class->cast_class = class->element_class = class;
4229 /*g_print ("Load class %s\n", name);*/
4232 * Compute the field and method lists
4234 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4235 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4237 if (tt->rows > tidx){
4238 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4239 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4240 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4242 field_last = image->tables [MONO_TABLE_FIELD].rows;
4243 method_last = image->tables [MONO_TABLE_METHOD].rows;
4246 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4247 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4248 class->field.count = field_last - class->field.first;
4250 class->field.count = 0;
4252 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4253 class->method.count = method_last - class->method.first;
4255 class->method.count = 0;
4257 /* reserve space to store vector pointer in arrays */
4258 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4259 class->instance_size += 2 * sizeof (gpointer);
4260 g_assert (class->field.count == 0);
4263 if (class->enumtype) {
4264 class->enum_basetype = mono_class_find_enum_basetype (class);
4265 if (!class->enum_basetype) {
4266 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4267 mono_loader_unlock ();
4270 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
4274 * If we're a generic type definition, load the constraints.
4275 * We must do this after the class has been constructed to make certain recursive scenarios
4278 if (class->generic_container)
4279 mono_metadata_load_generic_param_constraints (
4280 image, type_token, class->generic_container);
4282 mono_loader_unlock ();
4284 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4289 /** is klass Nullable<T>? */
4291 mono_class_is_nullable (MonoClass *klass)
4293 return klass->generic_class != NULL &&
4294 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4298 /** if klass is T? return T */
4300 mono_class_get_nullable_param (MonoClass *klass)
4302 g_assert (mono_class_is_nullable (klass));
4303 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4307 * Create the `MonoClass' for an instantiation of a generic type.
4308 * We only do this if we actually need it.
4311 mono_generic_class_get_class (MonoGenericClass *gclass)
4313 MonoClass *klass, *gklass;
4316 mono_loader_lock ();
4317 if (gclass->cached_class) {
4318 mono_loader_unlock ();
4319 return gclass->cached_class;
4322 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4323 klass = gclass->cached_class;
4325 gklass = gclass->container_class;
4327 if (gklass->nested_in) {
4329 * FIXME: the nested type context should include everything the
4330 * nesting context should have, but it may also have additional
4331 * generic parameters...
4333 MonoType *inflated = mono_class_inflate_generic_type (
4334 &gklass->nested_in->byval_arg, mono_generic_class_get_context (gclass));
4335 klass->nested_in = mono_class_from_mono_type (inflated);
4336 mono_metadata_free_type (inflated);
4339 klass->name = gklass->name;
4340 klass->name_space = gklass->name_space;
4342 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4344 klass->image = gklass->image;
4345 klass->flags = gklass->flags;
4346 klass->type_token = gklass->type_token;
4347 klass->field.count = gklass->field.count;
4348 klass->property.count = gklass->property.count;
4350 klass->generic_class = gclass;
4352 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4353 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4354 klass->this_arg.byref = TRUE;
4355 klass->enumtype = gklass->enumtype;
4356 klass->valuetype = gklass->valuetype;
4358 klass->cast_class = klass->element_class = klass;
4360 if (mono_class_is_nullable (klass))
4361 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4363 klass->interface_count = gklass->interface_count;
4364 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
4365 for (i = 0; i < klass->interface_count; i++) {
4366 MonoType *it = &gklass->interfaces [i]->byval_arg;
4367 MonoType *inflated = mono_class_inflate_generic_type (it, mono_generic_class_get_context (gclass));
4368 klass->interfaces [i] = mono_class_from_mono_type (inflated);
4369 mono_metadata_free_type (inflated);
4373 * We're not interested in the nested classes of a generic instance.
4374 * We use the generic type definition to look for nested classes.
4376 klass->nested_classes = NULL;
4378 if (gklass->parent) {
4379 MonoType *inflated = mono_class_inflate_generic_type (
4380 &gklass->parent->byval_arg, mono_generic_class_get_context (gclass));
4382 klass->parent = mono_class_from_mono_type (inflated);
4383 mono_metadata_free_type (inflated);
4387 mono_class_setup_parent (klass, klass->parent);
4389 if (klass->enumtype) {
4390 klass->enum_basetype = gklass->enum_basetype;
4391 klass->cast_class = gklass->cast_class;
4394 if (gclass->is_dynamic) {
4397 mono_class_setup_supertypes (klass);
4399 if (klass->enumtype) {
4401 * For enums, gklass->fields might not been set, but instance_size etc. is
4402 * already set in mono_reflection_create_internal_class (). For non-enums,
4403 * these will be computed normally in mono_class_layout_fields ().
4405 klass->instance_size = gklass->instance_size;
4406 klass->sizes.class_size = gklass->sizes.class_size;
4407 klass->size_inited = 1;
4411 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4413 mono_loader_unlock ();
4419 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4421 MonoClass *klass, **ptr;
4424 mono_loader_lock ();
4426 if (param->pklass) {
4427 mono_loader_unlock ();
4428 return param->pklass;
4431 if (!image && param->owner) {
4433 MonoMethod *method = param->owner->owner.method;
4434 image = (method && method->klass) ? method->klass->image : NULL;
4436 MonoClass *klass = param->owner->owner.klass;
4437 // FIXME: 'klass' should not be null
4438 // But, monodis creates GenericContainers without associating a owner to it
4439 image = klass ? klass->image : NULL;
4444 image = mono_defaults.corlib;
4446 klass = param->pklass = mono_image_alloc0 (image, sizeof (MonoClass));
4449 klass->name = param->name;
4451 klass->name = mono_image_alloc0 (image, 16);
4452 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4454 klass->name_space = "";
4455 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4457 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4461 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4462 klass->parent = param->constraints [0];
4464 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4465 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4467 klass->parent = mono_defaults.object_class;
4469 if (count - pos > 0) {
4470 klass->interface_count = count - pos;
4471 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4472 for (i = pos; i < count; i++)
4473 klass->interfaces [i - pos] = param->constraints [i];
4477 image = mono_defaults.corlib;
4479 klass->image = image;
4481 klass->inited = TRUE;
4482 klass->cast_class = klass->element_class = klass;
4483 klass->enum_basetype = &klass->element_class->byval_arg;
4484 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4486 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4487 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4488 klass->this_arg.byref = TRUE;
4492 guint32 cols [MONO_GENERICPARAM_SIZE];
4493 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4496 if (is_mvar && param->owner->owner.method)
4497 i = mono_metadata_get_generic_param_row (image, param->owner->owner.method->token, &owner);
4498 else if (!is_mvar && param->owner->owner.klass)
4499 i = mono_metadata_get_generic_param_row (image, param->owner->owner.klass->type_token, &owner);
4502 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4504 if (cols [MONO_GENERICPARAM_NUMBER] == param->num) {
4505 klass->sizes.generic_param_token = i | MONO_TOKEN_GENERIC_PARAM;
4508 if (++i > tdef->rows)
4510 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4511 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4515 mono_class_setup_supertypes (klass);
4517 mono_loader_unlock ();
4519 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4525 mono_ptr_class_get (MonoType *type)
4528 MonoClass *el_class;
4532 el_class = mono_class_from_mono_type (type);
4533 image = el_class->image;
4535 mono_loader_lock ();
4537 if (!image->ptr_cache)
4538 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4540 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4541 mono_loader_unlock ();
4544 result = mono_image_alloc0 (image, sizeof (MonoClass));
4546 result->parent = NULL; /* no parent for PTR types */
4547 result->name_space = el_class->name_space;
4548 name = g_strdup_printf ("%s*", el_class->name);
4549 result->name = mono_image_strdup (image, name);
4552 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4554 result->image = el_class->image;
4555 result->inited = TRUE;
4556 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4557 /* Can pointers get boxed? */
4558 result->instance_size = sizeof (gpointer);
4559 result->cast_class = result->element_class = el_class;
4560 result->enum_basetype = &result->element_class->byval_arg;
4561 result->blittable = TRUE;
4563 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4564 result->this_arg.data.type = result->byval_arg.data.type = result->enum_basetype;
4565 result->this_arg.byref = TRUE;
4567 mono_class_setup_supertypes (result);
4569 g_hash_table_insert (image->ptr_cache, el_class, result);
4571 mono_loader_unlock ();
4573 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4579 mono_fnptr_class_get (MonoMethodSignature *sig)
4582 static GHashTable *ptr_hash = NULL;
4584 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4586 mono_loader_lock ();
4589 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4591 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4592 mono_loader_unlock ();
4595 result = g_new0 (MonoClass, 1);
4597 result->parent = NULL; /* no parent for PTR types */
4598 result->name_space = "System";
4599 result->name = "MonoFNPtrFakeClass";
4601 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4603 result->image = mono_defaults.corlib; /* need to fix... */
4604 result->inited = TRUE;
4605 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4606 /* Can pointers get boxed? */
4607 result->instance_size = sizeof (gpointer);
4608 result->cast_class = result->element_class = result;
4609 result->blittable = TRUE;
4611 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4612 result->this_arg.data.method = result->byval_arg.data.method = sig;
4613 result->this_arg.byref = TRUE;
4614 result->enum_basetype = &result->element_class->byval_arg;
4615 result->blittable = TRUE;
4617 mono_class_setup_supertypes (result);
4619 g_hash_table_insert (ptr_hash, sig, result);
4621 mono_loader_unlock ();
4623 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4629 mono_class_from_mono_type (MonoType *type)
4631 switch (type->type) {
4632 case MONO_TYPE_OBJECT:
4633 return type->data.klass? type->data.klass: mono_defaults.object_class;
4634 case MONO_TYPE_VOID:
4635 return type->data.klass? type->data.klass: mono_defaults.void_class;
4636 case MONO_TYPE_BOOLEAN:
4637 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4638 case MONO_TYPE_CHAR:
4639 return type->data.klass? type->data.klass: mono_defaults.char_class;
4641 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4643 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4645 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4647 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4649 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4651 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4653 return type->data.klass? type->data.klass: mono_defaults.int_class;
4655 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4657 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4659 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4661 return type->data.klass? type->data.klass: mono_defaults.single_class;
4663 return type->data.klass? type->data.klass: mono_defaults.double_class;
4664 case MONO_TYPE_STRING:
4665 return type->data.klass? type->data.klass: mono_defaults.string_class;
4666 case MONO_TYPE_TYPEDBYREF:
4667 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4668 case MONO_TYPE_ARRAY:
4669 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4671 return mono_ptr_class_get (type->data.type);
4672 case MONO_TYPE_FNPTR:
4673 return mono_fnptr_class_get (type->data.method);
4674 case MONO_TYPE_SZARRAY:
4675 return mono_array_class_get (type->data.klass, 1);
4676 case MONO_TYPE_CLASS:
4677 case MONO_TYPE_VALUETYPE:
4678 return type->data.klass;
4679 case MONO_TYPE_GENERICINST:
4680 return mono_generic_class_get_class (type->data.generic_class);
4682 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4683 case MONO_TYPE_MVAR:
4684 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4686 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4687 g_assert_not_reached ();
4694 * mono_type_retrieve_from_typespec
4695 * @image: context where the image is created
4696 * @type_spec: typespec token
4697 * @context: the generic context used to evaluate generic instantiations in
4700 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4702 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4705 if (context && (context->class_inst || context->method_inst)) {
4706 MonoType *inflated = inflate_generic_type (NULL, t, context);
4709 *did_inflate = TRUE;
4716 * mono_class_create_from_typespec
4717 * @image: context where the image is created
4718 * @type_spec: typespec token
4719 * @context: the generic context used to evaluate generic instantiations in
4722 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4725 gboolean inflated = FALSE;
4726 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4729 ret = mono_class_from_mono_type (t);
4731 mono_metadata_free_type (t);
4736 * mono_bounded_array_class_get:
4737 * @element_class: element class
4738 * @rank: the dimension of the array class
4739 * @bounded: whenever the array has non-zero bounds
4741 * Returns: a class object describing the array with element type @element_type and
4745 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4749 MonoClass *parent = NULL;
4750 GSList *list, *rootlist;
4753 gboolean corlib_type = FALSE;
4755 g_assert (rank <= 255);
4758 /* bounded only matters for one-dimensional arrays */
4761 image = eclass->image;
4763 mono_loader_lock ();
4765 if (!image->array_cache)
4766 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4768 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4769 for (; list; list = list->next) {
4771 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4772 mono_loader_unlock ();
4778 /* for the building corlib use System.Array from it */
4779 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4780 parent = mono_class_from_name (image, "System", "Array");
4783 parent = mono_defaults.array_class;
4784 if (!parent->inited)
4785 mono_class_init (parent);
4788 class = mono_image_alloc0 (image, sizeof (MonoClass));
4790 class->image = image;
4791 class->name_space = eclass->name_space;
4792 nsize = strlen (eclass->name);
4793 name = g_malloc (nsize + 2 + rank + 1);
4794 memcpy (name, eclass->name, nsize);
4797 memset (name + nsize + 1, ',', rank - 1);
4799 name [nsize + rank] = '*';
4800 name [nsize + rank + bounded] = ']';
4801 name [nsize + rank + bounded + 1] = 0;
4802 class->name = mono_image_strdup (image, name);
4805 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4807 class->type_token = 0;
4808 /* all arrays are marked serializable and sealed, bug #42779 */
4809 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4810 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4811 class->parent = parent;
4812 class->instance_size = mono_class_instance_size (class->parent);
4814 if (eclass->enumtype && !eclass->enum_basetype) {
4815 if (!eclass->reflection_info || eclass->wastypebuilder) {
4816 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4817 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4819 /* element_size -1 is ok as this is not an instantitable type*/
4820 class->sizes.element_size = -1;
4822 class->sizes.element_size = mono_class_array_element_size (eclass);
4824 mono_class_setup_supertypes (class);
4826 if (mono_defaults.generic_ilist_class && !bounded && rank == 1) {
4829 /* generic IList, ICollection, IEnumerable */
4830 class->interface_count = 1;
4831 class->interfaces = mono_image_alloc0 (image, sizeof (MonoClass*) * class->interface_count);
4833 args [0] = &eclass->byval_arg;
4834 class->interfaces [0] = mono_class_bind_generic_parameters (
4835 mono_defaults.generic_ilist_class, 1, args, FALSE);
4838 if (eclass->generic_class)
4839 mono_class_init (eclass);
4840 if (!eclass->size_inited)
4841 mono_class_setup_fields (eclass);
4842 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4846 if (eclass->enumtype)
4847 class->cast_class = eclass->element_class;
4849 class->cast_class = eclass;
4851 class->element_class = eclass;
4853 if ((rank > 1) || bounded) {
4854 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
4855 class->byval_arg.type = MONO_TYPE_ARRAY;
4856 class->byval_arg.data.array = at;
4857 at->eklass = eclass;
4859 /* FIXME: complete.... */
4861 class->byval_arg.type = MONO_TYPE_SZARRAY;
4862 class->byval_arg.data.klass = eclass;
4864 class->this_arg = class->byval_arg;
4865 class->this_arg.byref = 1;
4870 class->generic_container = eclass->generic_container;
4872 list = g_slist_append (rootlist, class);
4873 g_hash_table_insert (image->array_cache, eclass, list);
4875 mono_loader_unlock ();
4877 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4883 * mono_array_class_get:
4884 * @element_class: element class
4885 * @rank: the dimension of the array class
4887 * Returns: a class object describing the array with element type @element_type and
4891 mono_array_class_get (MonoClass *eclass, guint32 rank)
4893 return mono_bounded_array_class_get (eclass, rank, FALSE);
4897 * mono_class_instance_size:
4900 * Returns: the size of an object instance
4903 mono_class_instance_size (MonoClass *klass)
4905 if (!klass->size_inited)
4906 mono_class_init (klass);
4908 return klass->instance_size;
4912 * mono_class_min_align:
4915 * Returns: minimm alignment requirements
4918 mono_class_min_align (MonoClass *klass)
4920 if (!klass->size_inited)
4921 mono_class_init (klass);
4923 return klass->min_align;
4927 * mono_class_value_size:
4930 * This function is used for value types, and return the
4931 * space and the alignment to store that kind of value object.
4933 * Returns: the size of a value of kind @klass
4936 mono_class_value_size (MonoClass *klass, guint32 *align)
4940 /* fixme: check disable, because we still have external revereces to
4941 * mscorlib and Dummy Objects
4943 /*g_assert (klass->valuetype);*/
4945 size = mono_class_instance_size (klass) - sizeof (MonoObject);
4948 *align = klass->min_align;
4954 * mono_class_data_size:
4957 * Returns: the size of the static class data
4960 mono_class_data_size (MonoClass *klass)
4963 mono_class_init (klass);
4965 /* in arrays, sizes.class_size is unioned with element_size
4966 * and arrays have no static fields
4970 return klass->sizes.class_size;
4974 * Auxiliary routine to mono_class_get_field
4976 * Takes a field index instead of a field token.
4978 static MonoClassField *
4979 mono_class_get_field_idx (MonoClass *class, int idx)
4981 mono_class_setup_fields_locking (class);
4984 if (class->image->uncompressed_metadata) {
4986 * class->field.first points to the FieldPtr table, while idx points into the
4987 * Field table, so we have to do a search.
4989 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
4992 for (i = 0; i < class->field.count; ++i)
4993 if (class->fields [i].name == name)
4994 return &class->fields [i];
4995 g_assert_not_reached ();
4997 if (class->field.count) {
4998 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
4999 return &class->fields [idx - class->field.first];
5003 class = class->parent;
5009 * mono_class_get_field:
5010 * @class: the class to lookup the field.
5011 * @field_token: the field token
5013 * Returns: A MonoClassField representing the type and offset of
5014 * the field, or a NULL value if the field does not belong to this
5018 mono_class_get_field (MonoClass *class, guint32 field_token)
5020 int idx = mono_metadata_token_index (field_token);
5022 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5024 return mono_class_get_field_idx (class, idx - 1);
5028 * mono_class_get_field_from_name:
5029 * @klass: the class to lookup the field.
5030 * @name: the field name
5032 * Search the class @klass and it's parents for a field with the name @name.
5034 * Returns: the MonoClassField pointer of the named field or NULL
5037 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5041 mono_class_setup_fields_locking (klass);
5043 for (i = 0; i < klass->field.count; ++i) {
5044 if (strcmp (name, klass->fields [i].name) == 0)
5045 return &klass->fields [i];
5047 klass = klass->parent;
5053 * mono_class_get_field_token:
5054 * @field: the field we need the token of
5056 * Get the token of a field. Note that the tokesn is only valid for the image
5057 * the field was loaded from. Don't use this function for fields in dynamic types.
5059 * Returns: the token representing the field in the image it was loaded from.
5062 mono_class_get_field_token (MonoClassField *field)
5064 MonoClass *klass = field->parent;
5067 mono_class_setup_fields_locking (klass);
5069 for (i = 0; i < klass->field.count; ++i) {
5070 if (&klass->fields [i] == field) {
5071 int idx = klass->field.first + i + 1;
5073 if (klass->image->uncompressed_metadata)
5074 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5075 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5078 klass = klass->parent;
5081 g_assert_not_reached ();
5086 * mono_class_get_field_default_value:
5088 * Return the default value of the field as a pointer into the metadata blob.
5091 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5094 guint32 constant_cols [MONO_CONSTANT_SIZE];
5096 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5099 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5101 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5103 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5104 field->def_type = constant_cols [MONO_CONSTANT_TYPE];
5105 field->data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5108 *def_type = field->def_type;
5113 mono_class_get_event_token (MonoEvent *event)
5115 MonoClass *klass = event->parent;
5119 for (i = 0; i < klass->event.count; ++i) {
5120 if (&klass->events [i] == event)
5121 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->event.first + i + 1);
5123 klass = klass->parent;
5126 g_assert_not_reached ();
5131 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5135 gpointer iter = NULL;
5136 while ((p = mono_class_get_properties (klass, &iter))) {
5137 if (! strcmp (name, p->name))
5140 klass = klass->parent;
5146 mono_class_get_property_token (MonoProperty *prop)
5148 MonoClass *klass = prop->parent;
5152 gpointer iter = NULL;
5153 while ((p = mono_class_get_properties (klass, &iter))) {
5154 if (&klass->properties [i] == prop)
5155 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->property.first + i + 1);
5159 klass = klass->parent;
5162 g_assert_not_reached ();
5167 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5169 const char *name, *nspace;
5171 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5173 switch (type_token & 0xff000000){
5174 case MONO_TOKEN_TYPE_DEF: {
5175 guint32 cols [MONO_TYPEDEF_SIZE];
5176 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5177 guint tidx = mono_metadata_token_index (type_token);
5179 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5180 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5181 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5182 if (strlen (nspace) == 0)
5183 return g_strdup_printf ("%s", name);
5185 return g_strdup_printf ("%s.%s", nspace, name);
5188 case MONO_TOKEN_TYPE_REF: {
5189 guint32 cols [MONO_TYPEREF_SIZE];
5190 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5192 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5193 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5194 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5195 if (strlen (nspace) == 0)
5196 return g_strdup_printf ("%s", name);
5198 return g_strdup_printf ("%s.%s", nspace, name);
5201 case MONO_TOKEN_TYPE_SPEC:
5202 return g_strdup_printf ("Typespec 0x%08x", type_token);
5204 g_assert_not_reached ();
5211 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5214 return g_strdup_printf ("DynamicAssembly %s", image->name);
5216 switch (type_token & 0xff000000){
5217 case MONO_TOKEN_TYPE_DEF:
5218 return mono_stringify_assembly_name (&image->assembly->aname);
5220 case MONO_TOKEN_TYPE_REF: {
5221 MonoAssemblyName aname;
5222 guint32 cols [MONO_TYPEREF_SIZE];
5223 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5226 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5228 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5229 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5230 case MONO_RESOLTION_SCOPE_MODULE:
5232 return g_strdup ("");
5233 case MONO_RESOLTION_SCOPE_MODULEREF:
5235 return g_strdup ("");
5236 case MONO_RESOLTION_SCOPE_TYPEREF:
5238 return g_strdup ("");
5239 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5240 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5241 return mono_stringify_assembly_name (&aname);
5243 g_assert_not_reached ();
5247 case MONO_TOKEN_TYPE_SPEC:
5249 return g_strdup ("");
5251 g_assert_not_reached ();
5258 * mono_class_get_full:
5259 * @image: the image where the class resides
5260 * @type_token: the token for the class
5261 * @context: the generic context used to evaluate generic instantiations in
5263 * Returns: the MonoClass that represents @type_token in @image
5266 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5268 MonoClass *class = NULL;
5270 if (image->dynamic) {
5271 int table = mono_metadata_token_table (type_token);
5273 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5274 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5277 return mono_lookup_dynamic_token (image, type_token, context);
5280 switch (type_token & 0xff000000){
5281 case MONO_TOKEN_TYPE_DEF:
5282 class = mono_class_create_from_typedef (image, type_token);
5284 case MONO_TOKEN_TYPE_REF:
5285 class = mono_class_from_typeref (image, type_token);
5287 case MONO_TOKEN_TYPE_SPEC:
5288 class = mono_class_create_from_typespec (image, type_token, context);
5291 g_warning ("unknown token type %x", type_token & 0xff000000);
5292 g_assert_not_reached ();
5296 char *name = mono_class_name_from_token (image, type_token);
5297 char *assembly = mono_assembly_name_from_token (image, type_token);
5298 mono_loader_set_error_type_load (name, assembly);
5306 * mono_type_get_full:
5307 * @image: the image where the type resides
5308 * @type_token: the token for the type
5309 * @context: the generic context used to evaluate generic instantiations in
5311 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5313 * Returns: the MonoType that represents @type_token in @image
5316 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5318 MonoType *type = NULL;
5319 gboolean inflated = FALSE;
5321 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5323 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5325 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5326 MonoClass *class = mono_class_get_full (image, type_token, context);
5327 return class ? mono_class_get_type (class) : NULL;
5330 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5333 char *name = mono_class_name_from_token (image, type_token);
5334 char *assembly = mono_assembly_name_from_token (image, type_token);
5336 mono_metadata_free_type (type);
5337 mono_loader_set_error_type_load (name, assembly);
5341 MonoType *tmp = type;
5342 type = mono_class_get_type (mono_class_from_mono_type (type));
5343 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5344 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5345 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5347 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5349 if (type->type != tmp->type)
5352 mono_metadata_free_type (tmp);
5359 mono_class_get (MonoImage *image, guint32 type_token)
5361 return mono_class_get_full (image, type_token, NULL);
5365 * mono_image_init_name_cache:
5367 * Initializes the class name cache stored in image->name_cache.
5369 * LOCKING: Acquires the loader lock.
5372 mono_image_init_name_cache (MonoImage *image)
5374 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5375 guint32 cols [MONO_TYPEDEF_SIZE];
5378 guint32 i, visib, nspace_index;
5379 GHashTable *name_cache2, *nspace_table;
5381 mono_loader_lock ();
5383 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5385 if (image->dynamic) {
5386 mono_loader_unlock ();
5390 /* Temporary hash table to avoid lookups in the nspace_table */
5391 name_cache2 = g_hash_table_new (NULL, NULL);
5393 for (i = 1; i <= t->rows; ++i) {
5394 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5395 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5397 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5398 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5400 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5402 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5403 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5405 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5406 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5407 if (!nspace_table) {
5408 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5409 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5410 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5413 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5416 /* Load type names from EXPORTEDTYPES table */
5418 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5419 guint32 cols [MONO_EXP_TYPE_SIZE];
5422 for (i = 0; i < t->rows; ++i) {
5423 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5424 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5425 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5427 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5428 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5429 if (!nspace_table) {
5430 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5431 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5432 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5435 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5439 g_hash_table_destroy (name_cache2);
5441 mono_loader_unlock ();
5445 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5446 const char *name, guint32 index)
5448 GHashTable *nspace_table;
5449 GHashTable *name_cache;
5451 mono_loader_lock ();
5453 if (!image->name_cache)
5454 mono_image_init_name_cache (image);
5456 name_cache = image->name_cache;
5457 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5458 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5459 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5461 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5463 mono_loader_unlock ();
5472 find_nocase (gpointer key, gpointer value, gpointer user_data)
5474 char *name = (char*)key;
5475 FindUserData *data = (FindUserData*)user_data;
5477 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5478 data->value = value;
5482 * mono_class_from_name_case:
5483 * @image: The MonoImage where the type is looked up in
5484 * @name_space: the type namespace
5485 * @name: the type short name.
5487 * Obtains a MonoClass with a given namespace and a given name which
5488 * is located in the given MonoImage. The namespace and name
5489 * lookups are case insensitive.
5492 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5494 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5495 guint32 cols [MONO_TYPEDEF_SIZE];
5500 if (image->dynamic) {
5502 FindUserData user_data;
5504 mono_loader_lock ();
5506 if (!image->name_cache)
5507 mono_image_init_name_cache (image);
5509 user_data.key = name_space;
5510 user_data.value = NULL;
5511 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5513 if (user_data.value) {
5514 GHashTable *nspace_table = (GHashTable*)user_data.value;
5516 user_data.key = name;
5517 user_data.value = NULL;
5519 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5521 if (user_data.value)
5522 token = GPOINTER_TO_UINT (user_data.value);
5525 mono_loader_unlock ();
5528 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5534 /* add a cache if needed */
5535 for (i = 1; i <= t->rows; ++i) {
5536 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5537 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5539 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5540 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5542 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5544 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5545 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5546 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5547 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5553 return_nested_in (MonoClass *class, char *nested)
5556 char *s = strchr (nested, '/');
5557 gpointer iter = NULL;
5564 while ((found = mono_class_get_nested_types (class, &iter))) {
5565 if (strcmp (found->name, nested) == 0) {
5567 return return_nested_in (found, s);
5575 search_modules (MonoImage *image, const char *name_space, const char *name)
5577 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5578 MonoImage *file_image;
5583 * The EXPORTEDTYPES table only contains public types, so have to search the
5585 * Note: image->modules contains the contents of the MODULEREF table, while
5586 * the real module list is in the FILE table.
5588 for (i = 0; i < file_table->rows; i++) {
5589 guint32 cols [MONO_FILE_SIZE];
5590 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5591 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5594 file_image = mono_image_load_file_for_image (image, i + 1);
5596 class = mono_class_from_name (file_image, name_space, name);
5606 * mono_class_from_name:
5607 * @image: The MonoImage where the type is looked up in
5608 * @name_space: the type namespace
5609 * @name: the type short name.
5611 * Obtains a MonoClass with a given namespace and a given name which
5612 * is located in the given MonoImage.
5615 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5617 GHashTable *nspace_table;
5618 MonoImage *loaded_image;
5625 if ((nested = strchr (name, '/'))) {
5626 int pos = nested - name;
5627 int len = strlen (name);
5630 memcpy (buf, name, len + 1);
5632 nested = buf + pos + 1;
5636 if (get_class_from_name) {
5637 gboolean res = get_class_from_name (image, name_space, name, &class);
5640 class = search_modules (image, name_space, name);
5642 return class ? return_nested_in (class, nested) : NULL;
5648 mono_loader_lock ();
5650 if (!image->name_cache)
5651 mono_image_init_name_cache (image);
5653 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5656 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5658 mono_loader_unlock ();
5660 if (!token && image->dynamic && image->modules) {
5661 /* Search modules as well */
5662 for (i = 0; i < image->module_count; ++i) {
5663 MonoImage *module = image->modules [i];
5665 class = mono_class_from_name (module, name_space, name);
5672 class = search_modules (image, name_space, name);
5680 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5681 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5682 guint32 cols [MONO_EXP_TYPE_SIZE];
5685 idx = mono_metadata_token_index (token);
5687 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5689 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5690 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5691 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5694 class = mono_class_from_name (loaded_image, name_space, name);
5696 return return_nested_in (class, nested);
5698 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5699 MonoAssembly **references = image->references;
5700 guint32 assembly_idx;
5702 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
5704 if (!references [assembly_idx - 1])
5705 mono_assembly_load_reference (image, assembly_idx - 1);
5706 g_assert (references == image->references);
5707 g_assert (references [assembly_idx - 1]);
5708 if (references [assembly_idx - 1] == (gpointer)-1)
5711 /* FIXME: Cycle detection */
5712 return mono_class_from_name (references [assembly_idx - 1]->image, name_space, name);
5714 g_error ("not yet implemented");
5718 token = MONO_TOKEN_TYPE_DEF | token;
5720 class = mono_class_get (image, token);
5722 return return_nested_in (class, nested);
5727 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5728 gboolean check_interfaces)
5730 g_assert (klassc->idepth > 0);
5731 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5732 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5734 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5737 for (i = 0; i < klass->interface_count; i ++) {
5738 MonoClass *ic = klass->interfaces [i];
5743 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5748 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5751 if (klassc == mono_defaults.object_class)
5758 mono_class_has_variant_generic_params (MonoClass *klass)
5761 MonoGenericContainer *container;
5763 if (!klass->generic_class)
5766 container = klass->generic_class->container_class->generic_container;
5768 for (i = 0; i < container->type_argc; ++i)
5769 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5776 * mono_class_is_assignable_from:
5777 * @klass: the class to be assigned to
5778 * @oklass: the source class
5780 * Return: true if an instance of object oklass can be assigned to an
5781 * instance of object @klass
5784 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5787 mono_class_init (klass);
5789 if (!oklass->inited)
5790 mono_class_init (oklass);
5792 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5793 return klass == oklass;
5795 if (MONO_CLASS_IS_INTERFACE (klass)) {
5796 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5799 /* interface_offsets might not be set for dynamic classes */
5800 if (oklass->reflection_info && !oklass->interface_bitmap)
5802 * oklass might be a generic type parameter but they have
5803 * interface_offsets set.
5805 return mono_reflection_call_is_assignable_to (oklass, klass);
5806 if (!oklass->interface_bitmap)
5807 /* Happens with generic instances of not-yet created dynamic types */
5809 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5812 if (mono_class_has_variant_generic_params (klass)) {
5813 if (oklass->generic_class) {
5815 gboolean match = FALSE;
5816 MonoClass *container_class1 = klass->generic_class->container_class;
5817 MonoClass *container_class2 = oklass->generic_class->container_class;
5820 * Check whenever the generic definition of oklass implements the
5821 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5822 * here since the relevant tables are not set up.
5824 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5825 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)))
5829 MonoGenericContainer *container;
5831 container = klass->generic_class->container_class->generic_container;
5834 for (i = 0; i < container->type_argc; ++i) {
5835 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5836 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5838 if (param1_class->valuetype != param2_class->valuetype) {
5843 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5844 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5846 if (param1_class != param2_class) {
5847 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5849 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5863 } else if (klass->rank) {
5864 MonoClass *eclass, *eoclass;
5866 if (oklass->rank != klass->rank)
5869 /* vectors vs. one dimensional arrays */
5870 if (oklass->byval_arg.type != klass->byval_arg.type)
5873 eclass = klass->cast_class;
5874 eoclass = oklass->cast_class;
5877 * a is b does not imply a[] is b[] when a is a valuetype, and
5878 * b is a reference type.
5881 if (eoclass->valuetype) {
5882 if ((eclass == mono_defaults.enum_class) ||
5883 (eclass == mono_defaults.enum_class->parent) ||
5884 (eclass == mono_defaults.object_class))
5888 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5889 } else if (mono_class_is_nullable (klass)) {
5890 if (mono_class_is_nullable (oklass))
5891 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5893 return mono_class_is_assignable_from (klass->cast_class, oklass);
5894 } else if (klass == mono_defaults.object_class)
5897 return mono_class_has_parent (oklass, klass);
5901 * mono_class_get_cctor:
5902 * @klass: A MonoClass pointer
5904 * Returns: the static constructor of @klass if it exists, NULL otherwise.
5907 mono_class_get_cctor (MonoClass *klass)
5909 MonoCachedClassInfo cached_info;
5911 if (!klass->has_cctor)
5914 if (mono_class_get_cached_class_info (klass, &cached_info))
5915 return mono_get_method (klass->image, cached_info.cctor_token, klass);
5917 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
5921 * mono_class_get_finalizer:
5922 * @klass: The MonoClass pointer
5924 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
5927 mono_class_get_finalizer (MonoClass *klass)
5929 MonoCachedClassInfo cached_info;
5932 mono_class_init (klass);
5933 if (!klass->has_finalize)
5936 if (mono_class_get_cached_class_info (klass, &cached_info))
5937 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
5939 mono_class_setup_vtable (klass);
5940 return klass->vtable [finalize_slot];
5945 * mono_class_needs_cctor_run:
5946 * @klass: the MonoClass pointer
5947 * @caller: a MonoMethod describing the caller
5949 * Determines whenever the class has a static constructor and whenever it
5950 * needs to be called when executing CALLER.
5953 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
5957 method = mono_class_get_cctor (klass);
5959 return (method == caller) ? FALSE : TRUE;
5965 * mono_class_array_element_size:
5968 * Returns: the number of bytes an element of type @klass
5969 * uses when stored into an array.
5972 mono_class_array_element_size (MonoClass *klass)
5974 MonoType *type = &klass->byval_arg;
5977 switch (type->type) {
5980 case MONO_TYPE_BOOLEAN:
5984 case MONO_TYPE_CHAR:
5993 case MONO_TYPE_CLASS:
5994 case MONO_TYPE_STRING:
5995 case MONO_TYPE_OBJECT:
5996 case MONO_TYPE_SZARRAY:
5997 case MONO_TYPE_ARRAY:
5999 case MONO_TYPE_MVAR:
6000 return sizeof (gpointer);
6005 case MONO_TYPE_VALUETYPE:
6006 if (type->data.klass->enumtype) {
6007 type = type->data.klass->enum_basetype;
6008 klass = klass->element_class;
6011 return mono_class_instance_size (klass) - sizeof (MonoObject);
6012 case MONO_TYPE_GENERICINST:
6013 type = &type->data.generic_class->container_class->byval_arg;
6016 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6022 * mono_array_element_size:
6023 * @ac: pointer to a #MonoArrayClass
6025 * Returns: the size of single array element.
6028 mono_array_element_size (MonoClass *ac)
6030 g_assert (ac->rank);
6031 return ac->sizes.element_size;
6035 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6036 MonoGenericContext *context)
6038 if (image->dynamic) {
6039 MonoClass *tmp_handle_class;
6040 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6042 g_assert (tmp_handle_class);
6044 *handle_class = tmp_handle_class;
6046 if (tmp_handle_class == mono_defaults.typehandle_class)
6047 return &((MonoClass*)obj)->byval_arg;
6052 switch (token & 0xff000000) {
6053 case MONO_TOKEN_TYPE_DEF:
6054 case MONO_TOKEN_TYPE_REF:
6055 case MONO_TOKEN_TYPE_SPEC: {
6058 *handle_class = mono_defaults.typehandle_class;
6059 type = mono_type_get_full (image, token, context);
6062 mono_class_init (mono_class_from_mono_type (type));
6063 /* We return a MonoType* as handle */
6066 case MONO_TOKEN_FIELD_DEF: {
6068 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6070 *handle_class = mono_defaults.fieldhandle_class;
6071 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6074 mono_class_init (class);
6075 return mono_class_get_field (class, token);
6077 case MONO_TOKEN_METHOD_DEF:
6078 case MONO_TOKEN_METHOD_SPEC: {
6080 meth = mono_get_method_full (image, token, NULL, context);
6082 *handle_class = mono_defaults.methodhandle_class;
6085 case MONO_TOKEN_MEMBER_REF: {
6086 guint32 cols [MONO_MEMBERREF_SIZE];
6088 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6089 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6090 mono_metadata_decode_blob_size (sig, &sig);
6091 if (*sig == 0x6) { /* it's a field */
6093 MonoClassField *field;
6094 field = mono_field_from_token (image, token, &klass, context);
6096 *handle_class = mono_defaults.fieldhandle_class;
6100 meth = mono_get_method_full (image, token, NULL, context);
6102 *handle_class = mono_defaults.methodhandle_class;
6107 g_warning ("Unknown token 0x%08x in ldtoken", token);
6114 * This function might need to call runtime functions so it can't be part
6115 * of the metadata library.
6117 static MonoLookupDynamicToken lookup_dynamic = NULL;
6120 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6122 lookup_dynamic = func;
6126 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6128 MonoClass *handle_class;
6130 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6134 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6136 return lookup_dynamic (image, token, valid_token, handle_class, context);
6139 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6142 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6144 get_cached_class_info = func;
6148 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6150 if (!get_cached_class_info)
6153 return get_cached_class_info (klass, res);
6157 mono_install_get_class_from_name (MonoGetClassFromName func)
6159 get_class_from_name = func;
6163 mono_class_get_image (MonoClass *klass)
6165 return klass->image;
6169 * mono_class_get_element_class:
6170 * @klass: the MonoClass to act on
6172 * Returns: the element class of an array or an enumeration.
6175 mono_class_get_element_class (MonoClass *klass)
6177 return klass->element_class;
6181 * mono_class_is_valuetype:
6182 * @klass: the MonoClass to act on
6184 * Returns: true if the MonoClass represents a ValueType.
6187 mono_class_is_valuetype (MonoClass *klass)
6189 return klass->valuetype;
6193 * mono_class_is_enum:
6194 * @klass: the MonoClass to act on
6196 * Returns: true if the MonoClass represents an enumeration.
6199 mono_class_is_enum (MonoClass *klass)
6201 return klass->enumtype;
6205 * mono_class_enum_basetype:
6206 * @klass: the MonoClass to act on
6208 * Returns: the underlying type representation for an enumeration.
6211 mono_class_enum_basetype (MonoClass *klass)
6213 return klass->enum_basetype;
6217 * mono_class_get_parent
6218 * @klass: the MonoClass to act on
6220 * Returns: the parent class for this class.
6223 mono_class_get_parent (MonoClass *klass)
6225 return klass->parent;
6229 * mono_class_get_nesting_type;
6230 * @klass: the MonoClass to act on
6232 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6235 mono_class_get_nesting_type (MonoClass *klass)
6237 return klass->nested_in;
6241 * mono_class_get_rank:
6242 * @klass: the MonoClass to act on
6244 * Returns: the rank for the array (the number of dimensions).
6247 mono_class_get_rank (MonoClass *klass)
6253 * mono_class_get_flags:
6254 * @klass: the MonoClass to act on
6256 * The type flags from the TypeDef table from the metadata.
6257 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6260 * Returns: the flags from the TypeDef table.
6263 mono_class_get_flags (MonoClass *klass)
6265 return klass->flags;
6269 * mono_class_get_name
6270 * @klass: the MonoClass to act on
6272 * Returns: the name of the class.
6275 mono_class_get_name (MonoClass *klass)
6281 * mono_class_get_namespace:
6282 * @klass: the MonoClass to act on
6284 * Returns: the namespace of the class.
6287 mono_class_get_namespace (MonoClass *klass)
6289 return klass->name_space;
6293 * mono_class_get_type:
6294 * @klass: the MonoClass to act on
6296 * This method returns the internal Type representation for the class.
6298 * Returns: the MonoType from the class.
6301 mono_class_get_type (MonoClass *klass)
6303 return &klass->byval_arg;
6307 * mono_class_get_type_token
6308 * @klass: the MonoClass to act on
6310 * This method returns type token for the class.
6312 * Returns: the type token for the class.
6315 mono_class_get_type_token (MonoClass *klass)
6317 return klass->type_token;
6321 * mono_class_get_byref_type:
6322 * @klass: the MonoClass to act on
6327 mono_class_get_byref_type (MonoClass *klass)
6329 return &klass->this_arg;
6333 * mono_class_num_fields:
6334 * @klass: the MonoClass to act on
6336 * Returns: the number of static and instance fields in the class.
6339 mono_class_num_fields (MonoClass *klass)
6341 return klass->field.count;
6345 * mono_class_num_methods:
6346 * @klass: the MonoClass to act on
6348 * Returns: the number of methods in the class.
6351 mono_class_num_methods (MonoClass *klass)
6353 return klass->method.count;
6357 * mono_class_num_properties
6358 * @klass: the MonoClass to act on
6360 * Returns: the number of properties in the class.
6363 mono_class_num_properties (MonoClass *klass)
6365 mono_class_setup_properties (klass);
6367 return klass->property.count;
6371 * mono_class_num_events:
6372 * @klass: the MonoClass to act on
6374 * Returns: the number of events in the class.
6377 mono_class_num_events (MonoClass *klass)
6379 mono_class_setup_events (klass);
6381 return klass->event.count;
6385 * mono_class_get_fields:
6386 * @klass: the MonoClass to act on
6388 * This routine is an iterator routine for retrieving the fields in a class.
6390 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6391 * iterate over all of the elements. When no more values are
6392 * available, the return value is NULL.
6394 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6397 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6399 MonoClassField* field;
6403 mono_class_setup_fields_locking (klass);
6404 /* start from the first */
6405 if (klass->field.count) {
6406 return *iter = &klass->fields [0];
6414 if (field < &klass->fields [klass->field.count]) {
6415 return *iter = field;
6421 * mono_class_get_methods
6422 * @klass: the MonoClass to act on
6424 * This routine is an iterator routine for retrieving the fields in a class.
6426 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6427 * iterate over all of the elements. When no more values are
6428 * available, the return value is NULL.
6430 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6433 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6435 MonoMethod** method;
6439 mono_class_init (klass);
6441 mono_class_setup_methods (klass);
6442 /* start from the first */
6443 if (klass->method.count) {
6444 *iter = &klass->methods [0];
6445 return klass->methods [0];
6453 if (method < &klass->methods [klass->method.count]) {
6461 * mono_class_get_properties:
6462 * @klass: the MonoClass to act on
6464 * This routine is an iterator routine for retrieving the properties in a class.
6466 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6467 * iterate over all of the elements. When no more values are
6468 * available, the return value is NULL.
6470 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6473 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6475 MonoProperty* property;
6479 mono_class_init (klass);
6481 mono_class_setup_properties (klass);
6482 /* start from the first */
6483 if (klass->property.count) {
6484 return *iter = &klass->properties [0];
6492 if (property < &klass->properties [klass->property.count]) {
6493 return *iter = property;
6499 * mono_class_get_events:
6500 * @klass: the MonoClass to act on
6502 * This routine is an iterator routine for retrieving the properties in a class.
6504 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6505 * iterate over all of the elements. When no more values are
6506 * available, the return value is NULL.
6508 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6511 mono_class_get_events (MonoClass* klass, gpointer *iter)
6517 mono_class_init (klass);
6519 mono_class_setup_events (klass);
6520 /* start from the first */
6521 if (klass->event.count) {
6522 return *iter = &klass->events [0];
6530 if (event < &klass->events [klass->event.count]) {
6531 return *iter = event;
6537 * mono_class_get_interfaces
6538 * @klass: the MonoClass to act on
6540 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6542 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6543 * iterate over all of the elements. When no more values are
6544 * available, the return value is NULL.
6546 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6549 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6555 mono_class_init (klass);
6557 /* start from the first */
6558 if (klass->interface_count) {
6559 *iter = &klass->interfaces [0];
6560 return klass->interfaces [0];
6568 if (iface < &klass->interfaces [klass->interface_count]) {
6576 * mono_class_get_nested_types
6577 * @klass: the MonoClass to act on
6579 * This routine is an iterator routine for retrieving the nested types of a class.
6580 * This works only if @klass is non-generic, or a generic type definition.
6582 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6583 * iterate over all of the elements. When no more values are
6584 * available, the return value is NULL.
6586 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6589 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6597 mono_class_init (klass);
6598 if (!klass->nested_classes_inited) {
6599 if (!klass->type_token)
6600 klass->nested_classes_inited = TRUE;
6601 mono_loader_lock ();
6602 if (!klass->nested_classes_inited) {
6603 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
6606 guint32 cols [MONO_NESTED_CLASS_SIZE];
6607 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
6608 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
6609 klass->nested_classes = g_list_prepend_mempool (klass->nested_classes, klass->image->mempool, nclass);
6611 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
6614 mono_memory_barrier ();
6615 klass->nested_classes_inited = TRUE;
6616 mono_loader_unlock ();
6620 /* start from the first */
6621 if (klass->nested_classes) {
6622 *iter = klass->nested_classes;
6623 return klass->nested_classes->data;
6625 /* no nested types */
6639 * mono_field_get_name:
6640 * @field: the MonoClassField to act on
6642 * Returns: the name of the field.
6645 mono_field_get_name (MonoClassField *field)
6651 * mono_field_get_type:
6652 * @field: the MonoClassField to act on
6654 * Returns: MonoType of the field.
6657 mono_field_get_type (MonoClassField *field)
6663 * mono_field_get_type:
6664 * @field: the MonoClassField to act on
6666 * Returns: MonoClass where the field was defined.
6669 mono_field_get_parent (MonoClassField *field)
6671 return field->parent;
6675 * mono_field_get_flags;
6676 * @field: the MonoClassField to act on
6678 * The metadata flags for a field are encoded using the
6679 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6681 * Returns: the flags for the field.
6684 mono_field_get_flags (MonoClassField *field)
6686 return field->type->attrs;
6690 * mono_field_get_offset;
6691 * @field: the MonoClassField to act on
6693 * Returns: the field offset.
6696 mono_field_get_offset (MonoClassField *field)
6698 return field->offset;
6702 * mono_field_get_data;
6703 * @field: the MonoClassField to act on
6705 * Returns: pointer to the metadata constant value or to the field
6706 * data if it has an RVA flag.
6709 mono_field_get_data (MonoClassField *field)
6715 * mono_property_get_name:
6716 * @prop: the MonoProperty to act on
6718 * Returns: the name of the property
6721 mono_property_get_name (MonoProperty *prop)
6727 * mono_property_get_set_method
6728 * @prop: the MonoProperty to act on.
6730 * Returns: the setter method of the property (A MonoMethod)
6733 mono_property_get_set_method (MonoProperty *prop)
6739 * mono_property_get_get_method
6740 * @prop: the MonoProperty to act on.
6742 * Returns: the setter method of the property (A MonoMethod)
6745 mono_property_get_get_method (MonoProperty *prop)
6751 * mono_property_get_parent:
6752 * @prop: the MonoProperty to act on.
6754 * Returns: the MonoClass where the property was defined.
6757 mono_property_get_parent (MonoProperty *prop)
6759 return prop->parent;
6763 * mono_property_get_flags:
6764 * @prop: the MonoProperty to act on.
6766 * The metadata flags for a property are encoded using the
6767 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6769 * Returns: the flags for the property.
6772 mono_property_get_flags (MonoProperty *prop)
6778 * mono_event_get_name:
6779 * @event: the MonoEvent to act on
6781 * Returns: the name of the event.
6784 mono_event_get_name (MonoEvent *event)
6790 * mono_event_get_add_method:
6791 * @event: The MonoEvent to act on.
6793 * Returns: the @add' method for the event (a MonoMethod).
6796 mono_event_get_add_method (MonoEvent *event)
6802 * mono_event_get_remove_method:
6803 * @event: The MonoEvent to act on.
6805 * Returns: the @remove method for the event (a MonoMethod).
6808 mono_event_get_remove_method (MonoEvent *event)
6810 return event->remove;
6814 * mono_event_get_raise_method:
6815 * @event: The MonoEvent to act on.
6817 * Returns: the @raise method for the event (a MonoMethod).
6820 mono_event_get_raise_method (MonoEvent *event)
6822 return event->raise;
6826 * mono_event_get_parent:
6827 * @event: the MonoEvent to act on.
6829 * Returns: the MonoClass where the event is defined.
6832 mono_event_get_parent (MonoEvent *event)
6834 return event->parent;
6838 * mono_event_get_flags
6839 * @event: the MonoEvent to act on.
6841 * The metadata flags for an event are encoded using the
6842 * EVENT_* constants. See the tabledefs.h file for details.
6844 * Returns: the flags for the event.
6847 mono_event_get_flags (MonoEvent *event)
6849 return event->attrs;
6853 * mono_class_get_method_from_name:
6854 * @klass: where to look for the method
6855 * @name_space: name of the method
6856 * @param_count: number of parameters. -1 for any number.
6858 * Obtains a MonoMethod with a given name and number of parameters.
6859 * It only works if there are no multiple signatures for any given method name.
6862 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
6864 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
6868 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
6870 MonoMethod *res = NULL;
6873 /* Search directly in the metadata to avoid calling setup_methods () */
6874 for (i = 0; i < klass->method.count; ++i) {
6875 guint32 cols [MONO_METHOD_SIZE];
6878 /* class->method.first points into the methodptr table */
6879 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6881 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
6882 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6883 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
6894 * mono_class_get_method_from_name_flags:
6895 * @klass: where to look for the method
6896 * @name_space: name of the method
6897 * @param_count: number of parameters. -1 for any number.
6898 * @flags: flags which must be set in the method
6900 * Obtains a MonoMethod with a given name and number of parameters.
6901 * It only works if there are no multiple signatures for any given method name.
6904 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
6906 MonoMethod *res = NULL;
6909 mono_class_init (klass);
6911 if (klass->methods || klass->generic_class) {
6912 mono_class_setup_methods (klass);
6913 for (i = 0; i < klass->method.count; ++i) {
6914 MonoMethod *method = klass->methods [i];
6916 if (method->name[0] == name [0] &&
6917 !strcmp (name, method->name) &&
6918 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
6919 ((method->flags & flags) == flags)) {
6926 res = find_method_in_metadata (klass, name, param_count, flags);
6933 * mono_class_set_failure:
6934 * @klass: class in which the failure was detected
6935 * @ex_type: the kind of exception/error to be thrown (later)
6936 * @ex_data: exception data (specific to each type of exception/error)
6938 * Keep a detected failure informations in the class for later processing.
6939 * Note that only the first failure is kept.
6941 * LOCKING: Acquires the loader lock.
6944 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
6946 if (klass->exception_type)
6949 mono_loader_lock ();
6950 klass->exception_type = ex_type;
6952 mono_property_hash_insert (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
6953 mono_loader_unlock ();
6959 * mono_class_get_exception_data:
6961 * Return the exception_data property of KLASS.
6963 * LOCKING: Acquires the loader lock.
6966 mono_class_get_exception_data (MonoClass *klass)
6970 mono_loader_lock ();
6971 res = mono_property_hash_lookup (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
6972 mono_loader_unlock ();
6977 * mono_classes_init:
6979 * Initialize the resources used by this module.
6982 mono_classes_init (void)
6987 * mono_classes_cleanup:
6989 * Free the resources used by this module.
6992 mono_classes_cleanup (void)
6994 if (global_interface_bitset)
6995 mono_bitset_free (global_interface_bitset);
6999 * mono_class_get_exception_for_failure:
7000 * @klass: class in which the failure was detected
7002 * Return a constructed MonoException than the caller can then throw
7003 * using mono_raise_exception - or NULL if no failure is present (or
7004 * doesn't result in an exception).
7007 mono_class_get_exception_for_failure (MonoClass *klass)
7009 gpointer exception_data = mono_class_get_exception_data (klass);
7011 switch (klass->exception_type) {
7012 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7013 MonoDomain *domain = mono_domain_get ();
7014 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7015 MonoMethod *method = exception_data;
7016 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7017 MonoObject *exc = NULL;
7021 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7022 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7023 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7025 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7026 return (MonoException*) exc;
7028 case MONO_EXCEPTION_TYPE_LOAD: {
7031 char *str = mono_type_get_full_name (klass);
7032 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7033 name = mono_string_new (mono_domain_get (), str);
7035 ex = mono_get_exception_type_load (name, astr);
7039 case MONO_EXCEPTION_MISSING_METHOD: {
7040 char *class_name = exception_data;
7041 char *assembly_name = class_name + strlen (class_name) + 1;
7043 return mono_get_exception_missing_method (class_name, assembly_name);
7045 case MONO_EXCEPTION_MISSING_FIELD: {
7046 char *class_name = exception_data;
7047 char *member_name = class_name + strlen (class_name) + 1;
7049 return mono_get_exception_missing_field (class_name, member_name);
7051 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7052 char *msg_format = exception_data;
7053 char *assembly_name = msg_format + strlen (msg_format) + 1;
7054 char *msg = g_strdup_printf (msg_format, assembly_name);
7057 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7063 case MONO_EXCEPTION_BAD_IMAGE: {
7064 return mono_get_exception_bad_image_format (exception_data);
7067 MonoLoaderError *error;
7070 error = mono_loader_get_last_error ();
7072 ex = mono_loader_error_prepare_exception (error);
7076 /* TODO - handle other class related failures */
7083 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7085 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7086 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7088 if (outer_klass == inner_klass)
7090 inner_klass = inner_klass->nested_in;
7091 } while (inner_klass);
7096 mono_class_get_generic_type_definition (MonoClass *klass)
7098 return klass->generic_class ? klass->generic_class->container_class : klass;
7102 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7104 * Generic instantiations are ignored for all super types of @klass.
7106 * Visibility checks ignoring generic instantiations.
7109 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7112 klass = mono_class_get_generic_type_definition (klass);
7113 parent = mono_class_get_generic_type_definition (parent);
7115 for (i = 0; i < klass->idepth; ++i) {
7116 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7122 * Subtype can only access parent members with family protection if the site object
7123 * is subclass of Subtype. For example:
7124 * class A { protected int x; }
7126 * void valid_access () {
7130 * void invalid_access () {
7137 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7139 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7142 if (context_klass == NULL)
7144 /*if access_klass is not member_klass context_klass must be type compat*/
7145 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7151 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7154 if (accessing == accessed)
7156 if (!accessed || !accessing)
7158 mono_assembly_load_friends (accessed);
7159 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7160 MonoAssemblyName *friend = tmp->data;
7161 /* Be conservative with checks */
7164 if (strcmp (accessing->aname.name, friend->name))
7166 if (friend->public_key_token [0]) {
7167 if (!accessing->aname.public_key_token [0])
7169 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7178 * If klass is a generic type or if it is derived from a generic type, return the
7179 * MonoClass of the generic definition
7180 * Returns NULL if not found
7183 get_generic_definition_class (MonoClass *klass)
7186 if (klass->generic_class && klass->generic_class->container_class)
7187 return klass->generic_class->container_class;
7188 klass = klass->parent;
7194 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7197 for (i = 0; i < ginst->type_argc; ++i) {
7198 MonoType *type = ginst->type_argv[i];
7199 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
7201 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7208 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7210 int access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7212 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7215 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7218 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7221 switch (access_level) {
7222 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7223 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7225 case TYPE_ATTRIBUTE_PUBLIC:
7228 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7231 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7232 return is_nesting_type (member_klass, access_klass);
7234 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7235 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7237 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7238 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7240 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7241 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7242 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7244 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7245 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7246 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7251 /* FIXME: check visibility of type, too */
7253 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7255 MonoClass *member_generic_def;
7256 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7257 access_klass->generic_container) &&
7258 (member_generic_def = get_generic_definition_class (member_klass))) {
7259 MonoClass *access_container;
7261 if (access_klass->generic_container)
7262 access_container = access_klass;
7264 access_container = access_klass->generic_class->container_class;
7266 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7270 /* Partition I 8.5.3.2 */
7271 /* the access level values are the same for fields and methods */
7272 switch (access_level) {
7273 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7274 /* same compilation unit */
7275 return access_klass->image == member_klass->image;
7276 case FIELD_ATTRIBUTE_PRIVATE:
7277 return access_klass == member_klass;
7278 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7279 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7280 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7283 case FIELD_ATTRIBUTE_ASSEMBLY:
7284 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7285 case FIELD_ATTRIBUTE_FAMILY:
7286 if (is_valid_family_access (access_klass, member_klass, context_klass))
7289 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7290 if (is_valid_family_access (access_klass, member_klass, context_klass))
7292 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7293 case FIELD_ATTRIBUTE_PUBLIC:
7300 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7302 /* FIXME: check all overlapping fields */
7303 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7305 MonoClass *nested = method->klass->nested_in;
7307 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7310 nested = nested->nested_in;
7317 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7319 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7321 MonoClass *nested = method->klass->nested_in;
7323 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7326 nested = nested->nested_in;
7331 * with generics calls to explicit interface implementations can be expressed
7332 * directly: the method is private, but we must allow it. This may be opening
7333 * a hole or the generics code should handle this differently.
7334 * Maybe just ensure the interface type is public.
7336 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7342 * mono_method_can_access_method_with_context:
7343 * @method: The caller method
7344 * @called: The called method
7345 * @context_klass:TThe static type on stack of the owner @called object used
7347 * This function must be used with instance calls, as they have more strict family accessibility.
7348 * It can be used with static mehthod, but context_klass should be NULL.
7350 * Returns: TRUE if caller have proper visibility and acessibility to @called
7353 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7355 MonoClass *access_class = method->klass;
7356 MonoClass *member_class = called->klass;
7357 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7359 MonoClass *nested = access_class->nested_in;
7361 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7364 nested = nested->nested_in;
7371 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7374 if (called->is_inflated) {
7375 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7376 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7385 * mono_method_can_access_method_with_context:
7386 * @method: The caller method
7387 * @field: The accessed field
7388 * @context_klass: The static type on stack of the owner @field object used
7390 * This function must be used with instance fields, as they have more strict family accessibility.
7391 * It can be used with static fields, but context_klass should be NULL.
7393 * Returns: TRUE if caller have proper visibility and acessibility to @field
7396 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7398 MonoClass *access_class = method->klass;
7399 MonoClass *member_class = field->parent;
7400 /* FIXME: check all overlapping fields */
7401 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7403 MonoClass *nested = access_class->nested_in;
7405 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7408 nested = nested->nested_in;
7415 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7421 * mono_type_is_valid_enum_basetype:
7422 * @type: The MonoType to check
7424 * Returns: TRUE if the type can be used as the basetype of an enum
7426 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7427 switch (type->type) {
7430 case MONO_TYPE_BOOLEAN:
7433 case MONO_TYPE_CHAR:
7446 * mono_class_is_valid_enum:
7447 * @klass: An enum class to be validated
7449 * This method verify the required properties an enum should have.
7451 * Returns: TRUE if the informed enum class is valid
7453 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7454 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7455 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7457 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7458 MonoClassField * field;
7459 gpointer iter = NULL;
7460 gboolean found_base_field = FALSE;
7462 g_assert (klass->enumtype);
7463 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7464 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7468 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7471 while ((field = mono_class_get_fields (klass, &iter))) {
7472 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7473 if (found_base_field)
7475 found_base_field = TRUE;
7476 if (!mono_type_is_valid_enum_basetype (field->type))
7481 if (!found_base_field)
7484 if (klass->method.count > 0)
7491 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7493 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7497 * mono_class_generic_sharing_enabled:
7500 * Returns whether generic sharing is enabled for class.
7502 * This is a stop-gap measure to slowly introduce generic sharing
7503 * until we have all the issues sorted out, at which time this
7504 * function will disappear and generic sharing will always be enabled.
7507 mono_class_generic_sharing_enabled (MonoClass *class)
7509 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__ppc__) || defined(__powerpc__)
7510 static gboolean supported = TRUE;
7512 /* Not supported by the JIT backends */
7513 static gboolean supported = FALSE;
7515 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7516 static gboolean inited = FALSE;
7522 generic_sharing = MONO_GENERIC_SHARING_ALL;
7524 generic_sharing = MONO_GENERIC_SHARING_NONE;
7526 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7527 if (strcmp (option, "corlib") == 0)
7528 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7529 else if (strcmp (option, "collections") == 0)
7530 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7531 else if (strcmp (option, "all") == 0)
7532 generic_sharing = MONO_GENERIC_SHARING_ALL;
7533 else if (strcmp (option, "none") == 0)
7534 generic_sharing = MONO_GENERIC_SHARING_NONE;
7536 g_warning ("Unknown generic sharing option `%s'.", option);
7540 generic_sharing = MONO_GENERIC_SHARING_NONE;
7545 switch (generic_sharing) {
7546 case MONO_GENERIC_SHARING_NONE:
7548 case MONO_GENERIC_SHARING_ALL:
7550 case MONO_GENERIC_SHARING_CORLIB :
7551 return class->image == mono_defaults.corlib;
7552 case MONO_GENERIC_SHARING_COLLECTIONS:
7553 if (class->image != mono_defaults.corlib)
7555 while (class->nested_in)
7556 class = class->nested_in;
7557 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7559 g_assert_not_reached ();